CN100574578C - The vibration-proof structure of electronic installation - Google Patents
The vibration-proof structure of electronic installation Download PDFInfo
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- CN100574578C CN100574578C CNB2005100713300A CN200510071330A CN100574578C CN 100574578 C CN100574578 C CN 100574578C CN B2005100713300 A CNB2005100713300 A CN B2005100713300A CN 200510071330 A CN200510071330 A CN 200510071330A CN 100574578 C CN100574578 C CN 100574578C
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Abstract
The present invention relates to a kind of vibration-proof structure of electronic installation, it comprises one first housing and one second housing, and defines a space between first housing and second housing; One printed circuit board (PCB), it is configured in this space, and its first surface is provided with a heavy element; One first cylinder, it is arranged on this first housing, and is positioned at this heavy element below; And one second cylinder, it is arranged on this second housing, and is positioned at this heavy element top.
Description
Technical field
The present invention relates to a kind of vibration-proof structure of electronic installation, relate in particular to a kind of vibration-proof structure of the electronic installation in order to the vibratory impulse on the minimum printed circuit board.
Background technology
Power-supply adapter, charger or power supply device are electronic installations indispensable in many electronic product and the information products.See also Fig. 1 (a), it is the cutaway view of traditional power-supply adapter, and wherein this power supply changeover device 1 comprises a upper shell 11 and a lower house 12, and defines a space between this upper shell 11 and this lower house 12, to hold a printed circuit board (PCB) 13.An one alternating-current power supply connector 14 and a direct current power interface connector 15 are arranged on the opposite side of this printed circuit board (PCB) 13, and 120 of a plurality of protruding components are on the opposite side of the inner surface that is arranged on this lower house 12 integratedly, support this printed circuit board (PCB) 13 around.In addition, also can be arranged on this printed circuit board (PCB) 13 in order to the needed many electronic components of the function of carrying out this power-supply adapter, and generally speaking, be foundation with weight, these electronic components can be divided into two classes haply: heavier element and light element.But, in order to simplify accompanying drawing, only be used for representing heavier element 16 and light element 17 respectively in the accompanying drawings with two electronic components 16 and 17, for instance, these electronic components are selected from transformer, metal oxide semiconductcor field effect transistor (MOSFETs), crystal grain, diode, inductance, choking winding, loop coil, electric capacity or inductance etc., but be not limited thereto, and as the institute know, in these electronic components, transformer, inductance, choking winding and loop coil are exactly the element that belongs to relatively heavy.
See also Fig. 1 (a) again, since these protruding components 120 supported this printed circuit board (PCB) 13 around, just can form a gap g1 between the inner surface of this printed circuit board (PCB) 13 and this lower house 12, directly contact between the welding portion (not shown) that this gap g1 helps avoid these elements on the bottom surface that is arranged on this printed circuit 13 and this lower house 12, to guarantee good welding characteristic.But this gap g1 still exists some shortcomings, for instance, in case when this power-supply adapter 1 accident dropped, this printed circuit board (PCB) 13 was with regard to possibly because this sudden surge power and up-down vibration.Then, see also Fig. 1 (b), it demonstrates a binode rumble spectrum (two-node vibrationspectrum) with an amplitude distribution analysis.Wherein, maximum vibration amplitude mainly is positioned at the zone of these heavier element 16 belows, opposite, zone below this light element 17 then has less vibration amplitude, then is substantially corresponding to these protruding components 120, therefore as for these nodes, be necessary to reduce the vibration amplitude of these heavier element 16 lower zones, and when if this vibration amplitude surpasses a permissible scope, then the problem of fatigue crack (faigue crack) just might take place in this printed circuit board (PCB) 13.
Therefore, in view of above-mentioned technology shortcoming, the inventor proposes a kind of method that can effectively overcome the problems referred to above.
Summary of the invention
The vibration-proof structure that the purpose of this invention is to provide a kind of electronic installation, it is used for the vibratory impulse on the minimum printed circuit board.
For achieving the above object, the invention provides a kind of vibration-proof structure of electronic installation, comprising: one first housing and one second housing, and define a space between this upper shell 11 and this lower house 12; One printed circuit board (PCB), it is configured in this space, and its first surface is provided with a heavy element; One first cylinder, it is arranged on this first housing, and is positioned at this heavy element below; And one second cylinder, it is arranged on this second housing, and is positioned at this heavy element top.
According to above-mentioned conception of the present invention, wherein this first cylinder and this first housing are one.
According to above-mentioned conception of the present invention, wherein has a gap between this printed circuit board (PCB) and this first cylinder.
According to above-mentioned conception of the present invention, wherein this printed circuit board (PCB) also comprises an opening, and it is corresponding with this first cylinder.
According to above-mentioned conception of the present invention, wherein this first cylinder penetrates this opening, and also has a gap between this heavy element bottom and this first cylinder.
According to above-mentioned conception of the present invention, wherein this second cylinder and this second housing are one.
According to above-mentioned conception of the present invention, wherein this second cylinder is corresponding with this first cylinder.
According to above-mentioned conception of the present invention, this heavy element is selected from the wherein a kind of of a transformer, an inductance, a choking winding and a toroidal electronic component.
According to above-mentioned conception of the present invention, this first housing and this second housing be respectively this electronic installation lower house and upper shell wherein.
According to above-mentioned conception of the present invention, wherein also comprise a plurality of protruding components, the opposite side that it is the inner surface that is arranged on this lower house integratedly, support this printed circuit board (PCB) around.
According to above-mentioned conception of the present invention, wherein this electronic installation be selected from a power-supply adapter, a charger and-power supply device wherein a kind of.
According to above-mentioned conception of the present invention, it also comprises a plurality of ribs, is configured on this first housing.
According to above-mentioned conception of the present invention, wherein these a plurality of ribs and this first housing are one.
According to above-mentioned conception of the present invention, wherein these ribs comprise at least one first rib, and it extends in first direction, and at least one second rib, and it extends in second direction.
According to above-mentioned conception of the present invention, wherein this first direction and this second direction are orthogonal.
For those skilled in the art, the above-mentioned content of the present invention will be below inquiring into again be described in detail and accompanying drawing after, become more clear.
Description of drawings
The cut-away view of Fig. 1 (a) expression one known power-supply adapter.
The distribution of amplitudes figure of printed circuit board (PCB) among Fig. 1 (b) presentation graphs 1 (a).
The cut-away view of the power-supply adapter of Fig. 2 (a) expression preferred embodiment of the present invention.
The cutaway view of the lower house of the power-supply adapter of Fig. 2 (b) presentation graphs 2 (a).
The distribution of amplitudes figure of printed circuit board (PCB) among Fig. 2 (b) presentation graphs 2 (a).
The cut-away view of the power-supply adapter of Fig. 3 (a) expression another preferred embodiment of the present invention.
The distribution of amplitudes figure of the printed circuit board (PCB) of the power-supply adapter among Fig. 3 (b) presentation graphs 3 (a).
Wherein, description of reference numerals is as follows:
1 power supply changeover device, 11 upper shells
12 lower houses, 13 printed circuit board (PCB)s
14 alternating-current power supply connectors
15 DC power supply wiring connectors
120 protruding components, 16 heavier elements
17 light element g1 gaps
2 power-supply adapters, 121 vertical ribs
122 horizontal ribs, 123 first cylinders
111 second cylinder g2 gaps
G3 gap 3 power-supply adapters
130 opening g4 gaps
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back.The present invention can have various variations different in form, and these do not depart from the scope of the present invention, and explanation wherein and accompanying drawing just be used for explanation in itself, rather than is used to limit the present invention.
In addition, for clarity, in the middle of following narration, components identical is represented with identical reference symbol.
See also Fig. 2 (a) and Fig. 2 (b), power-supply adapter 2 according to the preferred embodiment of this case comprises a upper shell 11, an and lower house 12, define a space between this upper shell 11 and this lower house 12, be used for holding a printed circuit board (PCB) 13, in addition, an alternating-current power supply connector 14, a direct current power interface connector 15, one heavier element 16 and light element 17 are arranged on this printed circuit board (PCB) 13.A plurality of protruding components 120 then are the opposite side of the inner surface that is arranged on this lower house 12 integratedly, and a plurality of vertical ribs 121 and horizontal ribs 122 then are on the inner surface that is arranged on this lower house 12 integratedly.The vibration-proof structure of electronic installation of the present invention also comprises one first cylinder 123 and one second cylinder 111, wherein this first cylinder 123 is the inner surface that is arranged on this lower house 12 integratedly, and be positioned at the below of this heavier element 16, this second cylinder 111 then is the inner surface that is arranged on this upper shell 11 integratedly, and be positioned at the position of the top of this heavier element 16 with respect to this first cylinder 123, by such configuration, be positioned at the gap g2 between this printed circuit board (PCB) 12 and this first cylinder 123 (or this lower house 12), and be positioned at gap g3 between this heavier element 16 and this second cylinder 111 (or this upper shell 11), compare with the gap g1 described in the known technology, it is less that the capital becomes, thus, get final product constrained vibration amplitude effectively, shown in Fig. 2 (c).
Then, see also Fig. 3 (a), it is the schematic diagram of another preferred embodiment of the shock-damping structure of electronic installation of the present invention.Shown in Fig. 3 (a), wherein, the power-supply adapter 3 of this embodiment is identical with the power-supply adapter shown in Fig. 2 (a), wherein this first cylinder 123 then penetrates an opening 130 that is arranged in this printed circuit board (PCB) 13, therefore, gap g4 just can be formed between the top of this heavier element 16 and this first cylinder 123, by such design, gap g4 between these heavier element 16 bottoms and this first cylinder, 123 tops, compare with the gap g1 described in the known technology, it is littler to become, so, just constrained vibration amplitude effectively is shown in Fig. 3 (b).
In sum, the vibration-proof structure of electronic installation of the present invention utilizes the design of first cylinder and second cylinder, gap between the last lower house of electronic component and electronic installation is dwindled, even when electronic installation is clashed into or is dropped, the amplitude that printed circuit board (PCB) and electronic component disposed thereon vibrate just can reduce, therefore, the present invention can minimize the vibratory impulse on this printed circuit board (PCB) of this electronic installation.
The present invention narrates with regard to the most practical and preferred embodiment at present, but the present invention is not limited to the disclosed embodiments, opposite, it contains various modifications and similar configuration in the design that is included in the appended claims and the scope, and this claims scope is consistent with the explanation of broad sense and then comprise all such modifications and similar configuration.
Claims (11)
1. the vibration-proof structure of an electronic installation comprises:
One first housing and one second housing, and define a space between first housing and second housing;
One printed circuit board (PCB), it is configured in this space, and its first surface is provided with a heavy element;
One first cylinder, it is arranged on this first housing, and is positioned at this heavy element below; And
One second cylinder, it is arranged on this second housing, and is positioned at this heavy element top.
2. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, this first cylinder and this first housing are one, and this second cylinder and this second housing are one, and corresponding with this first cylinder.
3. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, has a gap between this printed circuit board (PCB) and this first cylinder.
4. the vibration-proof structure of electronic installation as claimed in claim 1, it is characterized in that this printed circuit board also comprises an opening, it is corresponding with this first cylinder, and this first cylinder penetrates this opening, and also has a gap between this heavy element bottom and this first cylinder.
5. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, this heavy element is selected from the wherein a kind of of a transformer, an inductance, a choking winding and a toroidal electronic component.
6. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, lower house and upper shell that this first housing and this second housing are respectively this electronic installations.
7. the vibration-proof structure of electronic installation as claimed in claim 6 is characterized in that, also comprises a plurality of protruding components, and these protruding components are the opposite side of the inner surface that is arranged on this lower house integratedly, support this printed circuit board (PCB) around.
8. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, this electronic installation is selected from the wherein a kind of of a power-supply adapter, a charger and a power supply device.
9. the vibration-proof structure of electronic installation as claimed in claim 1 is characterized in that, also comprises a plurality of ribs, is configured on this first housing.
10. the vibration-proof structure of electronic installation as claimed in claim 9 is characterized in that, these a plurality of ribs and this first housing are one.
11. the vibration-proof structure of electronic installation as claimed in claim 9 is characterized in that, described rib comprises at least one first rib, and it extends in first direction, and at least one second rib, and it extends in second direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100713300A CN100574578C (en) | 2005-05-18 | 2005-05-18 | The vibration-proof structure of electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100713300A CN100574578C (en) | 2005-05-18 | 2005-05-18 | The vibration-proof structure of electronic installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1867232A CN1867232A (en) | 2006-11-22 |
| CN100574578C true CN100574578C (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100713300A Active CN100574578C (en) | 2005-05-18 | 2005-05-18 | The vibration-proof structure of electronic installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100574578C (en) |
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- 2005-05-18 CN CNB2005100713300A patent/CN100574578C/en active Active
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| Publication number | Publication date |
|---|---|
| CN1867232A (en) | 2006-11-22 |
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