CN204558258U - A kind of power capacitor explosion-proof block - Google Patents
A kind of power capacitor explosion-proof block Download PDFInfo
- Publication number
- CN204558258U CN204558258U CN201520201587.2U CN201520201587U CN204558258U CN 204558258 U CN204558258 U CN 204558258U CN 201520201587 U CN201520201587 U CN 201520201587U CN 204558258 U CN204558258 U CN 204558258U
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- CN
- China
- Prior art keywords
- telescopic block
- cylindrical cavity
- chuck
- sealing ring
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of power capacitor explosion-proof block, comprise body, described body is round pie, also comprise telescopic block, soft rubber pad and sealing ring, the bottom of described body is provided with notch, described notch extends to body interior, form cylindrical cavity, the surrounding of described notch is along being provided with snap ring, described telescopic block is cylindric, the edge, upper end of telescopic block is provided with the chuck matched with described snap ring, the diameter of chuck is identical with the diameter of described cylindrical cavity, described chuck is in cylindrical cavity, described soft rubber pad is located in cylindrical cavity, soft rubber pad is between chuck and cylindrical cavity inwall, and chuck fits tightly on snap ring, the middle part of described telescopic block is provided with the deep gouge of ring-type, described sealing ring is located on deep gouge, and sealing ring is between telescopic block and body, sealed by sealing ring between described telescopic block and body.
Description
Technical field
The utility model relates to capacitor technology field, particularly relates to a kind of power capacitor explosion-proof block.
Background technology
Capacitor, being usually called for short its ability holding electric charge is electric capacity, represents by letter C.Definition 1: capacitor, as the term suggests being ' container of dress electricity ', is a kind of device holding electric charge.English name: capacitor.Capacitor is one of a large amount of electronic component used in electronic equipment, be widely used in circuit every straight-through friendship, coupling, bypass, filtering, resonant tank, power conversion, the aspects such as control.Definition 2: capacitor, any two insulated from each other and all form a capacitor between the conductor (comprising wire) of being separated by very near.
Electric capacity is different from capacitor.Electric capacity is fundamental physical quantity, symbol C, and unit is F (farad).
The special formula of general formula C=Q/U plane-parallel capacitor: electric field strength E=U/d between plate, condenser capacitance determines formula C=ε S/4 π kd.
Along with making rapid progress of electronic information technology, the update speed goes of digital electronic goods is fast, based on the consumer electronics product volume of production and marketing sustainable growth of the products such as panel TV (LCD and PDP), notebook computer, digital camera, capacitor industry has been driven to increase.And having driven the development of associated materials, equipment Industry, China has become global capacitor big producing country.
Power capacitor of the prior art is all generally the container cavity being combined to form a sealing by cylindrical metal shell and aluminium lid, other important spare parts of capacitor are installed in container cavity, between metal shell and aluminium lid, be particularly provided with an explosion-proof block, explosion-proof block mainly prevents capacitor in the long-time process used, be heated and cause inner air to boost, thus the phenomenon producing blast between the metal shell of sealing and aluminium lid is occurred, explosion-proof block mainly plays the effect of protection, explosion-proof block of the prior art is integrated, when capacitor expanded by heating, the space of neither one buffering, directly explosion-proof block is withstood aluminium lid, thus pop, affect other electronic devices and components be in around capacitor, thus waste ample resources and cost.
Utility model content
In view of this, be necessary to provide one to have cushioning effect, power capacitor explosion-proof block that can be effectively explosion-proof.
The utility model realizes like this, a kind of power capacitor explosion-proof block, comprise body, described body is round pie, also comprise telescopic block, soft rubber pad and sealing ring, the bottom of described body is provided with notch, described notch extends to body interior, form cylindrical cavity, the surrounding of described notch is along being provided with snap ring, described telescopic block is cylindric, the edge, upper end of telescopic block is provided with the chuck matched with described snap ring, the diameter of chuck is identical with the diameter of described cylindrical cavity, described chuck is in cylindrical cavity, described soft rubber pad is located in cylindrical cavity, soft rubber pad is between chuck and cylindrical cavity inwall, and chuck fits tightly on snap ring, the middle part of described telescopic block is provided with the deep gouge of ring-type, described sealing ring is located on deep gouge, and sealing ring is between telescopic block and body, sealed by sealing ring between described telescopic block and body.
Further, the wiring that described body is provided with for wiring is bored a hole, and described wiring perforation is not communicated with described cylindrical cavity.
Further, the centre of the bottom end face of described telescopic block is provided with depression air drain, and described depression air drain is cylindrical.
The advantage of a kind of power capacitor explosion-proof block that the utility model provides is: by explosion-proof block is designed to body, telescopic block, the combining form of soft rubber pad and sealing ring, soft rubber pad is between chuck and cylindrical cavity inwall, and chuck fits tightly on snap ring, the middle part of described telescopic block is provided with the deep gouge of ring-type, described sealing ring is located on deep gouge, and sealing ring is between telescopic block and body, sealed by sealing ring between described telescopic block and body, when capacitor internal expanded by heating, telescopic block moves in intrinsic cylindrical cavity, due to the cushioning effect of soft rubber pad, instantaneously body can not be popped, play the effect of a buffer protection, when capacitor heat energy goes down, when internal pressure reduces, soft rubber pad resets again, by telescopic block top to original position, explosion-proof capabilities is strong, and wherein a certain single damage of components, only need to replace corresponding parts, do not need integral replacing, save ample resources and cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of power capacitor explosion-proof block of the utility model;
Fig. 2 is the decomposition texture schematic diagram of a kind of power capacitor explosion-proof block of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 2, wherein Fig. 1 is the structural representation of a kind of power capacitor explosion-proof block of the utility model; Fig. 2 is the decomposition texture schematic diagram of a kind of power capacitor explosion-proof block of the utility model.
Described a kind of power capacitor is soon explosion-proof, comprise body 10, described body 10 is round pie, also comprise telescopic block 20, soft rubber pad 30 and sealing ring 40, the bottom of described body 10 is provided with notch 11, described notch 11 extends to body 10 inside, form cylindrical cavity 12, the surrounding of described notch 11 is along being provided with snap ring 13, described telescopic block 20 is cylindric, the edge, upper end of telescopic block 20 is provided with the chuck 21 matched with described snap ring 13, the diameter of chuck 21 is identical with the diameter of described cylindrical cavity 12, described chuck 21 is in cylindrical cavity 12, described soft rubber pad 30 is located in cylindrical cavity 12, soft rubber pad 30 is between chuck 21 and cylindrical cavity 12 inwall, and chuck 21 fits tightly on snap ring 13, the middle part of described telescopic block 20 is provided with the deep gouge 22 of ring-type, described sealing ring 40 is located on deep gouge 22, and sealing ring 40 is between telescopic block 20 and body 10, sealed by sealing ring 40 between described telescopic block 20 and body 10.
Described body 10 is provided with the wiring perforation 14 for wiring, and described wiring perforation 14 is not communicated with described cylindrical cavity 12, and when being convenient to capacitor internal wiring, line passes from body 10, thus is convenient to install body 10 in any position of capacitor internal.
The centre of the bottom end face of described telescopic block 20 is provided with depression air drain 23, described depression air drain 23 is cylindrical, when capacitor internal air pressure raises, depression air drain 23 is inner stressed bigger than normal, and is in the stressed less of telescopic block 20 low side surrounding, makes the stressed center of gravity of telescopic block 20 is moved, prevent when boosting, telescopic block 20 is crooked, thus the phenomenon damaging the harmony of whole device occurs, thus extends its useful life.
The advantage of a kind of power capacitor explosion-proof block that the utility model provides is: by explosion-proof block is designed to body 10, telescopic block 20, the combining form of soft rubber pad 30 and sealing ring 40, soft rubber pad 30 is between chuck 21 and cylindrical cavity 12 inwall, and chuck 21 fits tightly on snap ring 13, the middle part of described telescopic block 20 is provided with the deep gouge 22 of ring-type, described sealing ring 40 is located on deep gouge 22, and sealing ring 40 is between telescopic block 20 and body 10, sealed by sealing ring 40 between described telescopic block 20 and body 10, when capacitor internal expanded by heating, telescopic block 20 moves in the cylindrical cavity 12 in body 10, due to the cushioning effect of soft rubber pad 30, instantaneously body 10 can not be popped, play the effect of a buffer protection, when capacitor heat energy goes down, when internal pressure reduces, soft rubber pad 30 resets again, telescopic block 20 is pushed up original position, explosion-proof capabilities is strong, and wherein a certain single damage of components, only need to replace corresponding parts, do not need integral replacing, save ample resources and cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. a power capacitor explosion-proof block, comprise body (10), described body (10) is round pie, it is characterized in that, also comprise telescopic block (20), soft rubber pad (30) and sealing ring (40), the bottom of described body (10) is provided with notch (11), described notch (11) extends to body (10) inside, form cylindrical cavity (12), the surrounding of described notch (11) is along being provided with snap ring (13), described telescopic block (20) is for cylindric, the edge, upper end of telescopic block (20) is provided with the chuck (21) matched with described snap ring (13), the diameter of chuck (21) is identical with the diameter of described cylindrical cavity (12), described chuck (21) is in cylindrical cavity (12), described soft rubber pad (30) is located in cylindrical cavity (12), soft rubber pad (30) is between chuck (21) and cylindrical cavity (12) inwall, and chuck (21) fits tightly on snap ring (13), the middle part of described telescopic block (20) is provided with the deep gouge (22) of ring-type, described sealing ring (40) is located on deep gouge (22), and sealing ring (40) is between telescopic block (20) and body (10), sealed by sealing ring (40) between described telescopic block (20) and body (10).
2. a kind of power capacitor explosion-proof block according to claim 1, it is characterized in that, the wiring that described body (10) is provided with for wiring is bored a hole (14), and described wiring perforation (14) is not communicated with described cylindrical cavity (12).
3. a kind of power capacitor explosion-proof block according to claim 1, is characterized in that, the centre of the bottom end face of described telescopic block (20) is provided with depression air drain (23), and described depression air drain (23) is for cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201587.2U CN204558258U (en) | 2015-04-07 | 2015-04-07 | A kind of power capacitor explosion-proof block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201587.2U CN204558258U (en) | 2015-04-07 | 2015-04-07 | A kind of power capacitor explosion-proof block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558258U true CN204558258U (en) | 2015-08-12 |
Family
ID=53833342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520201587.2U Expired - Fee Related CN204558258U (en) | 2015-04-07 | 2015-04-07 | A kind of power capacitor explosion-proof block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558258U (en) |
-
2015
- 2015-04-07 CN CN201520201587.2U patent/CN204558258U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160407 |