CN202857197U - Electronic circuit board waterproof and heat radiating device - Google Patents
Electronic circuit board waterproof and heat radiating device Download PDFInfo
- Publication number
- CN202857197U CN202857197U CN 201220588332 CN201220588332U CN202857197U CN 202857197 U CN202857197 U CN 202857197U CN 201220588332 CN201220588332 CN 201220588332 CN 201220588332 U CN201220588332 U CN 201220588332U CN 202857197 U CN202857197 U CN 202857197U
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- circuit board
- electronic circuit
- waterproof
- charactron
- heat abstractor
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Abstract
The utility model discloses an electronic circuit board waterproof and heat radiating device which comprises a casing, wherein the casing is composed of a casing body, an upper cover, a front side cover and a rear side cover and is provided with a sealing structure. An electronic circuit board whose double sides are embedded with waterproof glue layers are fixedly arranged in the casing. A pressure plate structure is fixedly arranged on the electric circuit board. The pressure plate structure contacts the inner side of the casing body. According to the utility model, the electronic circuit board with waterproof glue layers are combined with the sealing casing, thus the electronic circuit board has a completely waterproof function, and the service life of the electronic circuit board is prolonged; at the same time, the locked pressure plate body enables a power transistor in the electronic circuit board to abut against the inner side of the casing body through a heat conduction insulation silicon sheet, thus generated heat is quickly radiated through the casing body; system reliability and response speed are improved to greatest extent; and the service life of the electronic circuit board is prolonged further.
Description
Technical field
The utility model relates to the wiring board field, relates in particular to a kind of electronic circuit board waterproof and rapid heat radiation device, particularly is used in outdoor type solar energy or civil power street lamp and system intelligence etc. above the controller.
Background technology
Existing electronic circuit board, the electronic circuit board that particularly often uses out of doors must have good waterproof effect and good heat radiating just can make it have long useful life.For reaching waterproof effect, generally speaking, can all pour into for example Waterproof glue line of epoxy resin or silica gel of one deck electronic circuit board two-sided, increasing Waterproof glue line can make electronic circuit board have certain waterproof effect, simultaneously, the heat dispersion of electronic circuit board also is guaranteed, but there is serious deficiency in it: when be in for a long time shine upon and the condition of rain drop erosion under, Waterproof glue line will be damaged, affect waterproof effect, reduced the useful life of electronic circuit board, and electronic circuit board is difficult for being fixed, in the strong wind situation, may drops and damage.
Also have simultaneously electronic circuit board is positioned over the device that carries out waterproof in the can, this device also can reach waterproof effect to a certain extent, but electronic circuit board is in the shell of sealing, the heat of its generation is difficult for distributing, specially refer to the structure that LED lamp or power component are installed on the electronic circuit board, seriously reduced the useful life of electronic circuit board.Some be by the stretching both sides with through hole, then electronic circuit board is put in the aluminium shell from the through hole of a side, an other side seals it with adhesive plaster or other, then just the opposite side encapsulating seals; Power transistor in the circuit board every one deck glue, although glue has certain conductivity of heat, has a strong impact on the heat radiation of power transistor in fin like this, causes heat to concentrate in the enclosure, causes vicious circle, has a strong impact on the stability of whole system; Also have because glue is aperture injecting glue from the side, difficulty of processing is very large, and processing cost is very high.
In addition, general electronic circuit board all is equipped with power transistor, such as triode and metal-oxide-semiconductor etc., and being applied in when improving system reliability and response speed of power transistor, its problem that reliably reaches quick heat radiating just seems particularly important.If power transistor can not dispel the heat timely, can affect the stability of system works, even produce serious consequence.Common power transistor heat radiation is by screw power transistor to be pressed on fin surface simply, power transistor is contacted with fin surface, thereby dispel the heat.Although this radiating mode is simple in structure, but can not guarantee all compacted and good heat radiatings of power transistors all on the circuit board, in order to seek better radiating effect, just must compress power transistor by tightening fixed screw, but can impact the circuit board mechanical performance like this, so that circuit board gross distortion even scrap.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of full water-tight device of electronic circuit board of firmly efficient and good heat radiating, the heat dissipation problem that occurs for solving waterproof problem in the waterproof problem of the long-term use of solution electronic circuit board out of doors and the prior art has also solved the problem and the problem of producing the difficulty operation of electronic circuit board distortion simultaneously.
For achieving the above object, the utility model adopts following technical scheme:
A kind of electronic circuit board waterproof and heat abstractor, it comprises the shell with hermetically-sealed construction that is comprised of housing main body, loam cake, front side cap and rear side cover, being installed with a two-sided embedding in the described shell has the electronic circuit board of Waterproof glue line, be installed with a pressure plate structure on the described electronic circuit board, described pressure plate structure contacts with the medial surface of housing main body.
As improvement of the present utility model, described front side cap is provided with the shoulder hole of drawing for the wire that is electrically connected with electronic circuit board, be arranged with a sealing ring and back-up ring on the described wire, described sealing ring is installed in the shoulder hole that front side cap adapts, back-up ring is connected to the outside of sealing ring, and the cooperation by sealing ring and back-up ring can prevent that wire is damaged and can prevent that glue is excessive in installation process.
Preferably, be fixedly installed at least wherein a kind of in power transistor, charactron and the LED lamp on the described electronic circuit board.
As improvement of the present utility model, described pressure plate structure comprises pressing plate body and copper post, described pressing plate body is screwed on electronic circuit board, electronic circuit board is passed in the lower end of described screw, described copper post is bolted in the lower end of screw and copper post and housing main body and contacts, copper post and pressing plate body match, and accelerate distributing of electronic circuit board heat production.
As improvement of the present utility model, one power transistor is installed on the described electronic circuit board at least, be fixed with a heat conductive insulating silica gel piece that adapts with this end face size on the end face of described power transistor away from electronic circuit board, the height of described heat conductive insulating silica gel piece and power transistor and the height that equals the copper post, the heat conductive insulating silica gel piece can be gone out the heat that power transistor produces by the housing main body Quick diffusing.
As improvement of the present utility model, described pressing plate body is scholar's font, adopt the pressing plate body of scholar's font compressing power transistor simultaneously to the good average force effect of electronic circuit board, it can strengthen wiring board bending resistance, anti-folding, antitorque intensity, guarantees that electronic circuit board is indeformable.
As improvement of the present utility model, one charactron is installed on the described electronic circuit board at least, the outer race of described charactron is provided with a charactron Transparent lamp shade, be covered with the charactron hollow slots that is complementary with the charactron Transparent lamp shade on described, the upper surface of described charactron Transparent lamp shade places in this charactron hollow slots, acting as of charactron Transparent lamp shade prevents that charactron from being scratched, advancing when preventing encapsulating glue by shell, it cooperates with the charactron hollow slots simultaneously, can be implemented in the demonstration information that loam cake is conveniently checked charactron.
As improvement of the present utility model, one LED lamp is installed on the described electronic circuit board at least, the outer race of described LED lamp is provided with a LED Transparent lamp shade, be covered with the LED hollow slots that is complementary with the LED Transparent lamp shade on described, the upper surface of described LED Transparent lamp shade places in this LED hollow slots, acting as of LED Transparent lamp shade prevents that the LED lamp from being scratched, advancing when preventing encapsulating glue by shell, and it cooperates with the LED hollow slots simultaneously, can be implemented in loam cake and check conveniently whether the LED lamp is lit.
As improvement of the present utility model, waterproof key switch is installed on the described electronic circuit board at least, the press-side of described waterproof key switch passes and covers the outside that the Waterproof push-button hollow slots that is provided with is exposed to loam cake, and described Waterproof push-button hollow slots and press-side are complementary.
As improvement of the present utility model, housing main body has at least a lateral surface to be provided with bar-shaped trough, and the area of dissipation that bar-shaped trough can increase housing main body is set, and accelerates radiating rate, and preferably, described housing main body is the good aluminum metal case main body of heat-conductive characteristic.
Than prior art, the utility model is installed electronic circuit board in one can, and the two-sided encapsulating of electronic circuit board is formed Waterproof glue line, fixes a pressure plate structure at electronic circuit board simultaneously, and pressure plate structure contacts with housing main body.The effect of its realization is:
1, the combination of the electronic circuit board of Waterproof glue line and can makes electronic circuit board have complete water-proof function, prolongs the useful life of electronic circuit board.
2, pressure plate structure distributes the heat that electronic circuit board produces rapidly by housing main body, has further prolonged the useful life of electronic circuit board, and simultaneously, the pressing plate body of scholar's font can also strengthen wiring board bending resistance, anti-folding, antitorque intensity.
3, charactron and LED lamp all increase by a Transparent lamp shade, can prevent that charactron and LED lamp from being scratched, advancing during encapsulating glue by shell, and the hollow slots with coupling cooperates simultaneously, and light transmission is arrived loam cake.
4, can prevent wire in the installation process breakage and can prevent that glue is excessive by sealing ring and back-up ring.
5, the lateral surface of housing main body is provided with bar-shaped trough, increases the area of dissipation of housing main body, accelerates radiating rate.
6, the combination setting of front side cap, rear side cover and loam cake, after front side cap, rear side cover are fixed to housing main body, loam cake is not locked temporarily, Waterproof glue line mainly is by the mode of encapsulating liquid state colloid to be annotated the effect that plays waterproof in the electronic circuit board both sides from loam cake glue, and with upper cover locking, the encapsulating mouth of this encapsulating mode is very large behind the encapsulating, be conducive to smooth encapsulating, optimized production technology, enhanced productivity, thereby reduced production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model electronic circuit board waterproof and heat abstractor;
Fig. 2 is the decomposition texture schematic diagram of the direction of Fig. 1;
Fig. 3 is the cutaway view of shoulder hole among Fig. 2;
Fig. 4 is the decomposition texture schematic diagram of another direction of Fig. 1;
Fig. 5 is the decomposition texture schematic diagram of a direction of electronic circuit board;
Fig. 6 is the decomposition texture schematic diagram of another direction of electronic circuit board.
Wherein: 1, housing main body; 11, bar-shaped trough; 12, installing hole; 13, copper post fixed bit; 2, loam cake; 21, charactron hollow slots; 22, LED hollow slots; 23, screw; 24, Waterproof push-button hollow slots; 3, electronic circuit board; 31, power transistor; 32, heat conductive insulating silica gel piece; 33, charactron; 34, charactron Transparent lamp shade; 35, LED lamp; 36, LED Transparent lamp shade; 37, waterproof key switch; 4, front side cap; 41, shoulder hole; 411, aperture; 412, macropore; 5, rear side cover; 6, pressing plate body; 61, screw; 62, copper post; 7, sealing ring; 8, back-up ring; 9, wire.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
Shown in Fig. 1 ~ 6, a kind of electronic circuit board waterproof and heat abstractor, it comprises the shell with hermetically-sealed construction that fixedly is comprised of by screw 23 housing main body 1, loam cake 2, front side cap 4 and rear side cover 5, being installed with a two-sided embedding in the shell has the electronic circuit board 3 of Waterproof glue line (depending on going out), be installed with a pressure plate structure on the electronic circuit board 3, pressure plate structure contacts with the medial surface of housing main body 1.The utility model preferred embodiment is installed electronic circuit board 3 in the shell of a sealing, and with electronic circuit board 3 two-sided encapsulatings formation Waterproof glue lines, the forming process of Waterproof glue line is: first front side cap 4, rear side cover 5 are fixed to housing main body 1, loam cake 2 wouldn't be with on screw lock and the housing main body, Waterproof glue line is annotated the effect that in electronic circuit board both sides play waterproof with liquid state colloid from loam cake 2 glue by the mode of encapsulating, behind the encapsulating with upper cover locking, the encapsulating mouth of this glue-pouring method is very large, is conducive to smooth encapsulating.Simultaneously fix a pressure plate structure at electronic circuit board 3, having the electronic circuit board 3 of Waterproof glue line and the shell of sealing combines, make electronic circuit board 3 have complete water-proof function, shell by sealing causes that the heat dissipation problem that electronic circuit board 3 causes then has pressure plate structure to distribute by housing main body 1 simultaneously, prolongs the useful life of electronic circuit board 3.And housing main body 1 is provided with the installing hole 12 that whole device is installed on other fixtures, and passing installing hole 12 by modes such as screws can be firmly fixed at whole device on other fixtures.
Particularly, pressure plate structure comprises pressing plate body 6, screw 61 and copper post 62.Pressing plate body 6 is fixed on the electronic circuit board 3 by screw 61, electronic circuit board 3 is passed in the lower end of screw 61, the lower end snail of screw 61 is connected to a copper post 62 that is complementary with it, copper post 62 is arranged in the copper post fixed bit 13 that housing main body 1 is provided with away from the end of electronic circuit board 3, copper post 62 and pressing plate body 6 match, accelerate electronic circuit board heat production distributing by copper post 62, in the utility model preferred embodiment, pressing plate body 6 be shaped as scholar's font, the employing plastic material is made, it is by three screws and electronic circuit board 3 lockings, the structure of this pressing plate body 6 is to the good average force effect of electronic circuit board, can strengthen the wiring board bending resistance, anti-folding, antitorque intensity guarantees that electronic circuit board is indeformable.
As improvement of the present utility model, front side cap 4 is provided with the shoulder hole 41 of drawing for the wire 9 that is electrically connected with electronic circuit board 3, as shown in Figure 4, this shoulder hole 41 comprises the aperture 411 that is arranged at the front side cap medial surface and the macropore 412 that is arranged at the front side cap lateral surface, wherein aperture 411 and macropore 412 link and the two is coaxial, be arranged with a sealing ring 7 and back-up ring 8 on the wire 9, sealing ring 7 is installed in the macropore 412 of shoulder hole 41, back-up ring 8 is also filled in this macropore 412 and is connected to the outside of sealing ring, wire 9 is by the aperture 411 in the shoulder hole out, then put the sealing ring 7 of O type at wire, then use back-up ring (plastics are hard) sealing ring 7 to be pressed into the macropore 412 of shoulder hole 41, the lateral surface of the lateral surface of back-up ring 8 and front side cap 4 maintains an equal level, namely the degree of depth of macropore 412 just equal sealing ring 7 and back-up ring 8 thickness and.Cooperation by sealing ring 7 and back-up ring 8 can prevent wire 9 in the installation process breakage and can prevent that glue is excessive that simultaneously, it has guaranteed that shell is hermetically-sealed construction, plays the effect of waterproof.
At least be fixedly installed wherein a kind of in power transistor 31, charactron 33 and the LED lamp 35 on the electronic circuit board 3, in the utility model preferred embodiment, show coexist situation on the electronic circuit board 3 of three.Wherein, power transistor 31 is installed on from pressing plate body 6 and is positioned on the different end face of electronic circuit board 3, be fixed with a heat conductive insulating silica gel piece 32 that adapts with this end face size on the end face of power transistor 31 away from electronic circuit board 3, in the utility model preferred embodiment, power transistor 31 refers to the iron end face of power transistor 31 self-radiatings away from the end face of electronic circuit board 3, and the height of heat conductive insulating silica gel piece 32 and power transistor 31 and the height that equals copper post 62, like this, behind the locking pressure plate body 6, heat conductive insulating silica gel piece 32 can contact with housing main body, it can be gone out the heat that power transistor 31 produces by the housing main body Quick diffusing, pressing plate body 6 also well compresses power transistor 31 simultaneously, make on the firm and electronic circuit board 3 of power transistor 31, certainly, the height of heat conductive insulating silica gel piece 32 and power transistor 31 and also can be slightly less than the height of copper post 62; Charactron 33 and LED lamp 35 are installed on a side identical with pressing plate body 6, their equal corresponding loam cakes 2, the outer race of charactron 33 is provided with a charactron Transparent lamp shade 34, loam cake 2 is provided with the charactron hollow slots 21 that is complementary with charactron Transparent lamp shade 34, the upper surface of charactron Transparent lamp shade 34 places in this charactron hollow slots 21, acting as of charactron Transparent lamp shade 34 prevents that charactron 33 from being scratched, advancing when preventing encapsulating glue by shell, it cooperates with charactron hollow slots 21 simultaneously, can be implemented in the demonstration information that loam cake 2 is conveniently checked charactron 33; In like manner, the outer race of LED lamp 35 is provided with a LED Transparent lamp shade 36, loam cake 2 is provided with the LED hollow slots 22 that is complementary with LED Transparent lamp shade 36, the upper surface of LED Transparent lamp shade 36 places in this LED hollow slots 22, acting as of LED Transparent lamp shade 36 prevents that LED lamp 35 from being scratched, advancing when preventing encapsulating glue by shell, it cooperates with LED hollow slots 22 simultaneously, can be implemented in loam cake 2 and check conveniently whether the LED lamp is lit.In addition, waterproof key switch 37 also is installed on the electronic circuit board 3, waterproof key switch 37 is corresponding with loam cake 2, offer the Waterproof push-button hollow slots 24 that the press-side with waterproof key switch 37 is complementary on the loam cake 2, press-side is exposed to the outside of loam cake by this Waterproof push-button hollow slots 24, it also plays waterproof action except satisfying waterproof key switch 37 can normally use.
As improvement of the present utility model, housing main body 1 is made for the good aluminum metallic material of heat-conductive characteristic, housing main body 1 has at least a lateral surface to be provided with bar-shaped trough 11 simultaneously, in the utility model preferred embodiment, all offer a plurality of bar-shaped troughs 11 on each lateral surface, bar-shaped trough is set can increase the area of dissipation of housing main body, accelerates radiating rate.
The above; only being is with novel better embodiment originally; but protection range of the present utility model is not limited to this; any people who is familiar with this technology in the disclosed technical scope of the utility model, the variation that can expect easily or replacement (example one: adopt through hole and the compound mode of crossing the line plug or directly go between out or adopt mode that the binding post mode exposes from loam cake etc. to substitute the compound mode of the utility model scala media ladder way, sealing ring, back-up ring from the loam cake perforate.Example two: adopt housing main body, plastics protecgulum and plastic rear cover, match and be fixed on the main body thereby form groove position and main body by plastics, then loam cake is fixed on mode that front side cap, rear side cover form hermetically-sealed construction by screens or screw and substitutes the utility model and then be screwed the mode that forms hermetically-sealed construction from loam cake by housing main body, front side cap, rear side cover.Example three: adopt two sides stretching formation groove or tongue in housing main body, the electronic circuit board width just can be fixed on the groove position, adopts screw to add the pressure plate structure that mode that the copper post compresses the power component under the electronic circuit board substitutes briquetting in the utility model, copper post, screw mix proportion again.The mode that example four: LED, charactron etc. directly stretch out from corresponding loam cake hollow part substitutes the utility model patent and adopts the mode that adds translucent cover, etc.) all be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (10)
1. an electronic circuit board waterproof and heat abstractor, it is characterized in that, it comprises the shell with hermetically-sealed construction that is comprised of housing main body, loam cake, front side cap and rear side cover, being installed with a two-sided embedding in the described shell has the electronic circuit board of Waterproof glue line, be installed with a pressure plate structure on the described electronic circuit board, described pressure plate structure contacts with the medial surface of housing main body.
2. electronic circuit board waterproof as claimed in claim 1 and heat abstractor, it is characterized in that, described front side cap is provided with the shoulder hole of drawing for the wire that is electrically connected with electronic circuit board, be arranged with a sealing ring and back-up ring on the described wire, described sealing ring is installed in the shoulder hole that front side cap adapts, and back-up ring is connected to the outside of sealing ring.
3. electronic circuit board waterproof as claimed in claim 1 and heat abstractor is characterized in that, are fixedly installed at least wherein a kind of in power transistor, charactron and the LED lamp on the described electronic circuit board.
4. electronic circuit board waterproof as claimed in claim 1 and heat abstractor, it is characterized in that, described pressure plate structure comprises pressing plate body and copper post, described pressing plate body is screwed on electronic circuit board, electronic circuit board is passed in the lower end of described screw, and described copper post is bolted in the lower end of screw and copper post and housing main body and contacts.
5. electronic circuit board waterproof as claimed in claim 4 and heat abstractor, it is characterized in that, one power transistor is installed on the described electronic circuit board at least, be fixed with a heat conductive insulating silica gel piece that adapts with this end face size on the end face of described power transistor away from electronic circuit board, the height of described heat conductive insulating silica gel piece and power transistor and equal the height of copper post.
6. electronic circuit board waterproof as claimed in claim 4 and heat abstractor is characterized in that, described pressing plate body is scholar's font.
7. electronic circuit board waterproof as claimed in claim 1 and heat abstractor, it is characterized in that, one charactron is installed on the described electronic circuit board at least, the outer race of described charactron is provided with a charactron Transparent lamp shade, be covered with the charactron hollow slots that is complementary with the charactron Transparent lamp shade on described, the upper surface of described charactron Transparent lamp shade places in this charactron hollow slots.
8. electronic circuit board waterproof as claimed in claim 1 and heat abstractor, it is characterized in that, one LED lamp is installed on the described electronic circuit board at least, the outer race of described LED lamp is provided with a LED Transparent lamp shade, be covered with the LED hollow slots that is complementary with the LED Transparent lamp shade on described, the upper surface of described LED Transparent lamp shade places in this LED hollow slots.
9. electronic circuit board waterproof as claimed in claim 1 and heat abstractor, it is characterized in that, waterproof key switch is installed on the described electronic circuit board at least, the press-side of described waterproof key switch passes and covers the outside that the Waterproof push-button hollow slots that is provided with is exposed to loam cake, and described Waterproof push-button hollow slots and press-side are complementary.
10. electronic circuit board waterproof as claimed in claim 1 and heat abstractor is characterized in that, described housing main body is the aluminum metal case main body, and it has at least a lateral surface to be provided with bar-shaped trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588332 CN202857197U (en) | 2012-11-09 | 2012-11-09 | Electronic circuit board waterproof and heat radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220588332 CN202857197U (en) | 2012-11-09 | 2012-11-09 | Electronic circuit board waterproof and heat radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202857197U true CN202857197U (en) | 2013-04-03 |
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ID=47988337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220588332 Expired - Fee Related CN202857197U (en) | 2012-11-09 | 2012-11-09 | Electronic circuit board waterproof and heat radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202857197U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992633A (en) * | 2015-05-13 | 2015-10-21 | 长沙信元电子科技有限公司 | LED electronic display screen circuit board waterproof method and display module |
| CN108323072A (en) * | 2018-02-08 | 2018-07-24 | 温州艺创智能科技有限公司 | A kind of intelligent closestool waterproof remote controller |
| CN109803514A (en) * | 2019-02-22 | 2019-05-24 | 深圳源创智能照明有限公司 | A kind of circuit board waterproof assembling structure and method |
| CN110678050A (en) * | 2019-11-05 | 2020-01-10 | 北谷电子有限公司上海分公司 | Heat abstractor and fork truck controller |
| CN111867324A (en) * | 2020-06-30 | 2020-10-30 | 北京卫星制造厂有限公司 | Heat radiation structure suitable for spacecraft high-power device |
| CN114498162A (en) * | 2022-02-25 | 2022-05-13 | 深圳市灏胜电子科技有限公司 | Sealed circuit board of waterproof connector and manufacturing method thereof |
-
2012
- 2012-11-09 CN CN 201220588332 patent/CN202857197U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992633A (en) * | 2015-05-13 | 2015-10-21 | 长沙信元电子科技有限公司 | LED electronic display screen circuit board waterproof method and display module |
| CN108323072A (en) * | 2018-02-08 | 2018-07-24 | 温州艺创智能科技有限公司 | A kind of intelligent closestool waterproof remote controller |
| CN109803514A (en) * | 2019-02-22 | 2019-05-24 | 深圳源创智能照明有限公司 | A kind of circuit board waterproof assembling structure and method |
| CN109803514B (en) * | 2019-02-22 | 2023-10-20 | 深圳源码智能照明有限公司 | Waterproof assembly structure and method for circuit board |
| CN110678050A (en) * | 2019-11-05 | 2020-01-10 | 北谷电子有限公司上海分公司 | Heat abstractor and fork truck controller |
| CN111867324A (en) * | 2020-06-30 | 2020-10-30 | 北京卫星制造厂有限公司 | Heat radiation structure suitable for spacecraft high-power device |
| CN111867324B (en) * | 2020-06-30 | 2023-04-14 | 北京卫星制造厂有限公司 | Heat radiation structure suitable for spacecraft high-power device |
| CN114498162A (en) * | 2022-02-25 | 2022-05-13 | 深圳市灏胜电子科技有限公司 | Sealed circuit board of waterproof connector and manufacturing method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20141109 |
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| EXPY | Termination of patent right or utility model |