CN211879236U - Explosion-proof structure of capacitor - Google Patents
Explosion-proof structure of capacitor Download PDFInfo
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- CN211879236U CN211879236U CN202020800278.8U CN202020800278U CN211879236U CN 211879236 U CN211879236 U CN 211879236U CN 202020800278 U CN202020800278 U CN 202020800278U CN 211879236 U CN211879236 U CN 211879236U
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Abstract
An explosion-proof structure of a capacitor comprises an annular base fixed on a capacitor shell cover, wherein the annular base is sleeved with an injection hole of the capacitor shell cover, and an explosion-proof foil is hermetically arranged in the annular base; a top cover is arranged on the top surface of the annular base, and a pressure relief hole is formed in the top cover; the top cover is provided with a pricking rod, and the tip of the pricking rod extends into the annular base and is used for pricking the explosion-proof foil when the pressure exceeds the limit. The annular base is communicated with the injection sealing hole of the capacitor shell cover, can serve as a capacitor injection hole, has two functions of the injection hole and the explosion-proof valve, avoids the capacitor shell from being re-perforated, is favorable for improving the performance of the capacitor, and has simple and ingenious structure and convenient processing; the top cover is additionally provided with the pricking rod, when the internal pressure of the capacitor exceeds the limit, the explosion-proof foil is pricked by the pricking rod, so that gas is quickly released, and the capacitor is prevented from exploding.
Description
Technical Field
The utility model relates to a condenser makes technical field, concretely relates to condenser explosion-proof construction.
Background
After the inside production gas of condenser, if gaseous unable exhaust, gather to certain extent when gaseous and will lead to the condenser to explode, consequently, at the explosion-proof valve of condenser casing installation for prevent the condenser explosion, when condenser internal pressure reached the limit, explosion-proof foil piece was broken by the dashing to this realizes the pressure release. The existing explosion-proof valve directly breaks an explosion-proof foil through high pressure, the internal pressure of the capacitor is extremely high at the moment before pressure relief, and if the foil cannot be broken in time, the capacitor still has explosion risks; the threshold value of the explosion-proof valve is not adjustable, and the applicability is limited; the capacitor shell is additionally provided with a pressure relief hole for installing the explosion-proof valve, and the capacitor shell is provided with two openings, namely a filling hole and the pressure relief hole, so that the performance of the capacitor is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the related technical problems and deficiencies, the utility model provides an explosion-proof structure of a capacitor, wherein a top cover is provided with a pricking rod which can prick an explosion-proof foil to realize rapid pressure relief; the annular base can act as the notes hole of sealing of condenser, has two kinds of functions of annotating hole and explosion-proof valve concurrently, and simple structure is convenient for process.
In order to solve the technical problem, the utility model discloses a following scheme:
an explosion-proof structure of a capacitor comprises an annular base fixed on a capacitor shell cover, wherein the annular base is sleeved with an injection hole of the capacitor shell cover, and an explosion-proof foil is hermetically arranged in the annular base;
a top cover is arranged on the top surface of the annular base, and a pressure relief hole is formed in the top cover;
the top cover is provided with a pricking rod, and the tip of the pricking rod extends into the annular base and is used for pricking the explosion-proof foil when the pressure exceeds the limit.
Furthermore, the thorn rod is arranged at the center of the top cover in a penetrating mode through threads, and the thorn rod can be screwed to adjust the inserting depth of the thorn rod into the annular base.
Furthermore, two sealing rings are placed in the annular base, the explosion-proof foil is clamped between the sealing rings, and a pressing ring is arranged on the bottom surface of the top cover and used for pressing and fixing the sealing rings.
Furthermore, the pressure relief hole is circumferentially provided with four arc-shaped holes, and an openable dustproof sheet is arranged in each arc-shaped hole.
Specifically, the annular base is fully welded to the capacitor case cover.
Preferably, an anti-fouling barrel is installed at the top end of the top cover, and a plurality of exhaust holes are formed in the top surface of the anti-fouling barrel.
The utility model discloses beneficial effect who has:
the annular base is communicated with the injection sealing hole of the capacitor shell cover, can serve as a capacitor injection hole, has two functions of the injection hole and the explosion-proof valve, avoids the capacitor shell from being re-perforated, is favorable for improving the performance of the capacitor, and has simple and ingenious structure and convenient processing; the top cover is additionally provided with the pricking rod, when the internal pressure of the capacitor exceeds the limit, the explosion-proof foil is pricked by the pricking rod, so that gas is quickly released, and the capacitor is prevented from exploding.
The capacitor has different limit pressures to bear on different use occasions, the puncturing rod is threaded in the center of the top cover, and the puncturing rod can be screwed to adjust the depth of the puncturing rod inserted into the annular base, so that the distance between the tip of the puncturing rod and the explosion-proof foil is adjusted, and the limit pressure of the explosion-proof foil is adjusted.
The mounting mode of the explosion-proof foil piece is simple and convenient, the explosion-proof foil piece is clamped between the two sealing rings and then is directly placed into the annular base, and the top cover is mounted to compress the sealing rings, so that the explosion-proof foil piece with the proper thickness can be selected temporarily as required compared with the fixed mounting mode.
The melting liquid in the capacitor can be sprayed out along with the air flow during pressure relief, and the top end of the top cover is provided with the anti-fouling cylinder, so that the discharged liquid can be collected in the anti-fouling cylinder, and the circuit board is prevented from being stained.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view from the bottom of fig. 1.
Reference numerals: 1-capacitor shell cover, 2-annular base, 3-explosion-proof foil, 4-sealing ring, 5-top cover, 50-compression ring, 51-thorn rod, 52-pressure relief hole and 6-antifouling cylinder.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1 and fig. 2, the present embodiment provides an explosion-proof structure for a capacitor, which includes an annular base 2 fixed on a capacitor case cover 1, the annular base 2 is sleeved on an injection hole of the capacitor case cover 1, and an explosion-proof foil 3 is hermetically installed in the annular base 2; a top cover 5 is arranged on the top surface of the annular base 2, and the top cover 5 is provided with a pressure relief hole 52; the top cover 5 is provided with a piercing rod 51, the tip of the piercing rod 51 extending into the annular base 2 for piercing the bursting disk 3 in the event of a pressure overrun.
The specific implementation process comprises the following steps: annular base 2 and capacitor case lid 1 annotate the hole intercommunication, can act as the capacitor filling hole, have filling hole, explosion-proof valve two kinds of functions concurrently, avoid capacitor case trompil again, be favorable to improving the capacitor performance. An explosion-proof foil 3 is arranged in the annular base 2, and then the top cover 5 is screwed and arranged on the annular base 2, and the top surfaces of the two are flush. When the gas pressure in the capacitor is gradually increased, the explosion-proof foil 3 is bulged to contact with the pricking rod 51 and is pricked by the pricking rod 51, so that the gas is quickly released, and the capacitor is prevented from exploding.
Further, in order to adjust the pressure relief limit of the explosion-proof foil 3, in which the limit pressure to which the capacitor is subjected in different applications varies, the bayonet rod 51 is provided in some embodiments in an adjustable manner. As shown in fig. 2, the piercing rod 51 is threaded through the center of the top cover 5, the depth of the piercing rod 51 inserted into the annular base 2 can be adjusted by screwing, and therefore the distance between the tip of the piercing rod 51 and the explosion-proof foil 3 is adjusted, when the pressure of the capacitor exceeds the limit, the explosion-proof foil 3 bulges and is pierced by contacting with the tip of the piercing rod 51, and the thickness of the explosion-proof foil 3 is also selected according to actual needs.
Further, an installation mode of the explosion-proof foil 3 is provided, as shown in the figure, two sealing rings 4 are placed in the annular base 2, the explosion-proof foil 3 is clamped between the sealing rings 4, and a pressing ring 50 is arranged on the bottom surface of the top cover 5 to press and fix the sealing rings 4. During installation, the explosion-proof foil 3 is clamped between the two sealing rings 4 and then placed into the annular base 2, the top cover 5 is installed to compress the sealing rings 4, installation is convenient, and the explosion-proof foil 3 with proper thickness can be selected temporarily as required.
Further, in some embodiments, as shown in fig. 1, the pressure relief holes 52 are circumferentially arranged as four arc-shaped holes, and an openable dust-proof sheet is arranged therein. The pressure relief hole 52 is formed in the edge of the top cover 5, and when the pressure exceeds the limit, the dust-proof piece is flushed by airflow to perform circumferential rapid pressure relief.
Specifically, in some embodiments, the annular base 2 is fully welded to the capacitor case cover 1, so that the two are fixed into a whole, the sealing is good, and the pouring and packaging are also convenient.
Preferably, as a preferred embodiment, the melt in the capacitor can be sprayed out along with the air flow during pressure relief to pollute the circuit board, the top end of the top cover 5 is provided with the anti-fouling cylinder 6, and the top surface of the anti-fouling cylinder 6 is provided with a plurality of exhaust holes, so that the discharged liquid can be collected in the anti-fouling cylinder 6 to avoid polluting the circuit board.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (6)
1. The capacitor explosion-proof structure is characterized by comprising an annular base (2) fixed on a capacitor shell cover (1), wherein the annular base (2) is sleeved with an injection hole of the capacitor shell cover (1), and an explosion-proof foil (3) is hermetically arranged in the annular base (2);
a top cover (5) is installed on the top surface of the annular base (2), and a pressure relief hole (52) is formed in the top cover (5);
the top cover (5) is provided with a pricking rod (51), and the tip of the pricking rod (51) extends into the annular base (2) and is used for pricking the explosion-proof foil (3) when the pressure exceeds the limit.
2. The explosion-proof structure of the capacitor according to claim 1, characterized in that the piercing rod (51) is threaded through the center of the top cover (5), and the piercing rod (51) is screwed to adjust the depth of insertion into the annular base (2).
3. The explosion-proof structure of the capacitor according to claim 1, characterized in that two sealing rings (4) are arranged in the annular base (2), the explosion-proof foil (3) is clamped between the sealing rings (4), and a pressing ring (50) is arranged on the bottom surface of the top cover (5) to press and fix the sealing rings (4).
4. The explosion-proof structure of capacitor as claimed in claim 1, wherein the pressure relief hole (52) is circumferentially arranged as four arc-shaped holes, in which an openable dust-proof sheet is arranged.
5. Explosion-proof construction for capacitors according to claim 1, characterized in that the annular base (2) is fully welded to the capacitor case cover (1).
6. The explosion-proof structure of capacitor as claimed in any one of claims 1 to 5, wherein the top end of the top cover (5) is installed with an anti-fouling cylinder (6), and the top surface of the anti-fouling cylinder (6) is provided with a plurality of exhaust holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800278.8U CN211879236U (en) | 2020-05-14 | 2020-05-14 | Explosion-proof structure of capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800278.8U CN211879236U (en) | 2020-05-14 | 2020-05-14 | Explosion-proof structure of capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211879236U true CN211879236U (en) | 2020-11-06 |
Family
ID=73234237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020800278.8U Active CN211879236U (en) | 2020-05-14 | 2020-05-14 | Explosion-proof structure of capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211879236U (en) |
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2020
- 2020-05-14 CN CN202020800278.8U patent/CN211879236U/en active Active
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