CN214068858U - Short-circuit protection module and battery - Google Patents
Short-circuit protection module and battery Download PDFInfo
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- CN214068858U CN214068858U CN202022902952.6U CN202022902952U CN214068858U CN 214068858 U CN214068858 U CN 214068858U CN 202022902952 U CN202022902952 U CN 202022902952U CN 214068858 U CN214068858 U CN 214068858U
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- fuse
- fusing
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- fixed part
- circuit protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses short-circuit protection module and battery, short-circuit protection module include fuse, shell, and the fuse includes fusing portion, first fusing fixed part and second fusing fixed part, and first fusing fixed part is inclined to second fusing fixed part setting. The shell is provided with and holds chamber, first shell fixed part and second shell fixed part, holds the chamber and is used for holding the fuse-element, and first shell fixed part and second shell fixed part slope setting each other, first shell fixed part and first fuse fixed part cooperation, second shell fixed part and second fuse fixed part cooperation to be fixed in the shell with the fuse-element. Through set up first fusing fixed part and the second fusing fixed part of mutual slope on the fuse-element to set up first shell fixed part and the second shell fixed part of mutual slope on the shell, make first shell fixed part and the cooperation of first fusing fixed part, second shell fixed part and the cooperation of second fusing fixed part, avoid the fuse-element to take place the offset in the shell from this.
Description
Technical Field
The application relates to the technical field of short-circuit protection, in particular to a short-circuit protection module and a battery.
Background
The battery among the prior art need set up the short-circuit protection module, in the short-circuit protection module, is provided with the fuse-link usually, when the short-circuit protection module when being carried, leads to the fuse-link easily because the skew of position takes place for vibrations, takes place fuse-link fracture or disconnection at the skew in-process of position, and then makes the fuse-link fracture before the prerequisite of onset of action, can't play stable short-circuit protection's effect.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems of the prior art. Therefore, the short-circuit protection module is provided in the application, and can play a role in stable short-circuit protection.
The application also provides a battery with a stable short-circuit protection function.
According to the short-circuit protection module of the first aspect embodiment in this application, the short-circuit protection module includes:
the fuse comprises a fusing part, a first fusing fixing part and a second fusing fixing part, wherein the first fusing fixing part is obliquely arranged relative to the second fusing fixing part;
the shell, the shell is provided with and holds chamber, first shell fixed part and second shell fixed part, it is used for holding to hold the chamber the fuse-link, first shell fixed part for second shell fixed part slope sets up, first shell fixed part with the cooperation of first fuse-link, second shell fixed part with the cooperation of second fuse-link, in order to incite somebody to action the fuse-link is fixed in the shell.
According to the short-circuit protection module of the embodiment in this application, at least following technological effect has: through set up first fusing fixed part and the second fusing fixed part of mutual slope on the fuse-element to set up first shell fixed part and the second shell fixed part of mutual slope on the shell, and make first shell fixed part with first fusing fixed part cooperation, second shell fixed part with second fusing fixed part cooperation, thereby will fuse-element is fixed in the shell avoids the fuse-element to take place the offset in the shell from this.
According to some of the embodiments of the present application, the first fuse fixing part is perpendicular to the second fuse fixing part, and the first case fixing part is perpendicular to the second case fixing part.
According to some of the embodiments herein, the fuse has a plurality of fusing parts with an isolation groove disposed therebetween.
According to some of the embodiments herein, the fuse portion is provided with a fuse hole provided at a minimum cross-sectional area of the fuse portion.
According to some of the embodiments herein, the fuse is provided with a tin spot covering the fuse hole.
According to some of the embodiments herein, the short-circuit protection module further comprises an arcing resistor for covering the fuse portion.
According to some of the embodiments of the present application, the housing is provided with a first inner wall and a second inner wall, the fuse portion is provided with a first edge and a second edge, a distance between the first inner wall and the first edge is a first distance, a distance between the second inner wall and the second edge is a second distance, a length of the arc striking resistance member is greater than a distance length, and the distance length is a maximum value of the first distance and the second distance.
According to some of the embodiments herein, the housing includes a base and a top, the base being removably connected to the top.
According to some embodiments of embodiments in the application, the housing is provided with an explosion-proof groove, the explosion-proof groove is parallel to a fixed position of the fusing part, and the fixed position is a position where the fusing part is located when the fusing part is installed on the housing.
According to a battery of an embodiment of the second aspect of the present application, the battery comprises a short-circuit protection module as described above in the embodiment of the first aspect.
According to the battery of the embodiment in this application, at least the following technical effects are achieved: the battery is provided with the short-circuit protection module, and the short-circuit protection module is through setting up first fusing fixed part and the second fusing fixed part of mutual slope on the fuse-link to set up first shell fixed part and the second shell fixed part of mutual slope on the shell, and make first shell fixed part with first fusing fixed part cooperation, second shell fixed part with second fusing fixed part cooperation, thereby be fixed in the fuse-link the shell avoids the fuse-link to take place offset in the shell from this, and then avoids the fuse-link fracture or disconnection, with this stability that improves battery protection.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a fuse according to an embodiment of the present application;
fig. 2 is a schematic structural diagram illustrating a short-circuit protection module according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a base according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a top cover of an embodiment of the present application;
fig. 5 is a schematic structural diagram of a battery according to an embodiment of the present application;
fig. 6 is another schematic diagram of the battery of fig. 5.
Reference numerals:
short-circuit protection module 100, fuse element 110, first fuse fixing portion 111, second fuse fixing portion 112, fuse portion 113, isolation groove 114, fuse hole 115, first edge 116, and second edge 117;
a base 120, a first housing fixing part 121, a second housing fixing part 122, an explosion-proof groove 123, a first inner wall 124, and a top cover 130;
the arc resistance piece 140, the battery 200, the pole connecting piece 210, the shell 300 and the accommodating cavity 310.
Detailed Description
The conception and the resulting technical effects in the present application will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects in the present application. Obviously, the described embodiments are only a part of the embodiments in the present application, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments in the present application belong to the protection scope in the present application.
In the description of the embodiments in the present application, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting in the present application.
In the description of the embodiments in this application, if a feature is referred to as being "disposed", "connected", or "mounted" to another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, or connected to the other feature.
According to the short-circuit protection module 100 of the first embodiment of the present application, the short-circuit protection module 100 includes a fuse element 110 and a housing 300, the fuse element 110 includes a fuse portion 113, a first fuse fixing portion 111 and a second fuse fixing portion 112, and the first fuse fixing portion 111 is obliquely disposed on the second fuse fixing portion 112. The housing 300 is provided with a receiving chamber 310, a first housing fixing portion 121, and a second housing fixing portion 122, the receiving chamber 310 is used for receiving the fuse 110, the first housing fixing portion 121 and the second housing fixing portion 122 are disposed to be inclined to each other, the first housing fixing portion 121 is engaged with the first fuse fixing portion 111, and the second housing fixing portion 122 is engaged with the second fuse fixing portion 112, so as to fix the fuse 110 to the housing 300.
Specifically, referring to fig. 1 and 2, the short-circuit protection module 100 includes a housing 300, a fuse 110. A receiving cavity 310 is disposed in the housing 300, and the receiving cavity 310 is used for receiving the fuse 110. The fuse 110 is provided with a fusing part 113, and a cross-sectional area of the fusing part 113 is smaller than a minimum cross-sectional area of the remaining portion of the fuse 110. Therefore, when the short-circuit protection module 100 works, as the current is conducted on the fuse 110, the current causes the fuse 110 to generate heat and melt, and when the fuse 110 is broken and melted to be disconnected, the current cannot continuously pass through the fuse 110, so that the short-circuit protection effect is achieved. Since the first fuse fixing portion 111 and the second fuse fixing portion 112 are inclined to each other, the first housing fixing portion 121 is engaged with the first fuse fixing portion 111, and the second housing fixing portion 122 is engaged with the second fuse fixing portion 112. Therefore, when the fuse 110 is installed in the accommodating cavity 310, six degrees of freedom are limited, thereby preventing the fuse 110 from moving in the accommodating cavity 310 and breaking when the fuse 110 does not work, and further performing a stable short-circuit protection function.
It is understood that the housing 300 may be provided as a single body, and is provided with the receiving cavity 310 and a through hole. The through hole communicates the accommodating cavity 310 with the external environment, through which the fuse 110 can pass. The fuse element 110 may enter the receiving cavity 310 through the through hole and be fixed to the housing 300 through the first fuse fixing portion 111 and the second fuse fixing portion 112. Compared with the design that the housing 300 is combined by the upper cover and the lower cover, the housing 300 is a whole, and the fuse 110 can enter the accommodating cavity 310 through the through hole, so that the installation efficiency of the fuse 110 can be improved, and the housing 300 is prevented from being separated in the carrying process of the short-circuit protection module 100.
According to some embodiments of the present disclosure, the first fuse fixing portion 111 is disposed perpendicular to the second fuse fixing portion 112, the first housing fixing portion 121 is disposed perpendicular to the second housing fixing portion 122, the first fuse fixing portion 111 is connected to the first housing fixing portion 121 in a matching manner, and the second fuse fixing portion 112 is connected to the second housing fixing portion 122 in a matching manner, so that the housing 300 and the fuse element 110 are convenient to process, and the short circuit protection module 100 is convenient to connect to an external component in a matching manner.
According to some of the embodiments in the present application, the fuse 110 has a plurality of fusing parts 113, and an isolation groove 114 is disposed between the plurality of fusing parts 113. Specifically, referring to fig. 1, the fuse 110 has three fusing parts 113 and two isolation grooves 114, and the isolation grooves 114 separate the fusing parts 113, thereby achieving an effect that the fusing parts 113 are staggered from the isolation grooves 114. When the reduced cross-sectional areas of the fusing parts 113 are equal, the strength of the fusing part 110, which reduces the cross-sectional area of the fusing part 113 by providing the isolation groove 114, is higher than that of the fusing part 110, which reduces the cross-sectional area of the fusing part 113 by changing the outer profile shape of the fusing part 110.
According to some of the embodiments herein, the fusing part 113 is provided with a fusing hole 115, and the fusing hole 115 is provided at a minimum cross-sectional area of the fusing part 113. Specifically, referring to fig. 1, the fuse 110 is provided with the fuse hole 115, the fuse hole 115 is a circular hole, the fuse hole 115 is provided at the minimum cross-sectional area of the fusing part 113, and since the fuse hole 115 is provided at the minimum cross-sectional area of the fusing part 113, the minimum cross-sectional area of the fusing part 113 can be further reduced, thereby making the fuse 110 more easily fused. It is understood that the fusing may be a triangular hole, a circular hole, etc., and the circular hole may prevent the fusing part 113 from being broken due to its strong deformation resistance.
According to some of the embodiments herein, the fuse 110 is provided with a tin spot covering the fuse hole 115. Specifically, the tin point can be arranged on the fuse hole 115 by tin point, so that the conductivity of the fuse part 113 is improved by arranging the tin point, and further, the conductive part is easier to break when conducting, so that the conductivity of the fuse 110 is improved on the premise of not reducing the strength of the fuse 110.
According to some of the embodiments of the present application, the short-circuit protection module 100 further includes an arcing resistance 140, and the arcing resistance 140 is used for covering the fuse portion 113. Specifically, referring to fig. 2, the arc resistance member 140 is a high temperature resistant substance capable of covering the fusing part 113. When the fusing part 113 is changed from a solid to a liquid under the condition of heat accumulation, it drops downward due to gravity, and at this time, an arc is generated, and the arc and the dropped fusing part 113 easily penetrate the case 300, and therefore, the arc striking resistance member 140 is provided, thereby preventing the case 300 from being penetrated.
According to some of the embodiments of the present application, the housing 300 is provided with a first inner wall 124 and a second inner wall (not shown), the fuse portion 113 is provided with a first side 116 and a second side 117, the first inner wall 124 is spaced apart from the first side 116 by a first distance, the second inner wall is spaced apart from the second side 117 by a second distance, and the arc striking resistance 140 has a length greater than a length of the first distance, wherein the length of the first distance is the maximum of the first distance and the second distance.
Specifically, referring to fig. 1 and 3, the longest vertical distance between first inner wall 124 and first side 116 is the first spacing. The second inner wall is an inner wall of the housing 300 and is located opposite to the first inner wall 124. The first side 116 is a side of the fusing portion 113 away from the first inner wall 124, and the second side 117 is a side of the fusing portion 113 away from the second inner wall. The longest vertical distance between the second inner wall and the second edge 117 is the second distance. When the second interval is consistent with the first interval, the length of the interval is equal to that of the first interval. When the second pitch is not the same as the first pitch, the pitch length is the larger of the first pitch and the second pitch. The length of the arcing resistance 140 is the length in the left-right direction, and the length of the arcing resistance 140 is set to be greater than the interval length, so that the fusing part 113 can be covered when the arcing resistance 140 can move in the accommodating chamber 310, thereby preventing the housing 300 from being penetrated.
According to some of the embodiments herein, the material of the arcing resistance 140 is ceramic silica gel. Specifically, the material of the arcing impedance element 140 is then ceramic silicone, which has good resistance to high temperatures and flexibility. Accordingly, the arcing resistance 140 can be conveniently placed in the receiving cavity 310 and can effectively protect the outer case 300. It is understood that the material of the arc resistance member 140 may also be a high temperature resistant material such as mica sheets.
According to some of the embodiments herein, the housing 300 includes a base 120 and a top cover 130, the base 120 being removably attached to the top cover 130. Specifically, referring to fig. 2 to 4, the housing 300 includes a base 120 and a top cover 130, and the base 120 and the top cover 130 are in an interference fit, so that the base 120 and the top cover 130 can be detachably connected and conveniently detached. It is understood that the base 120 and the cap 130 may be threaded or snap-fit.
According to some of the embodiments of the present application, the housing 300 is provided with an explosion-proof groove 123, the explosion-proof groove 123 being parallel to a fixing position of the fusing part 113, the fixing position being a position of the fusing part 113 when the fuse 110 is mounted to the housing 300. Specifically, referring to fig. 3, the housing 300 is provided with an explosion-proof groove 123. When the fusing part 113 is fused, gas is generated, and the gas may cause the housing 300 to be expanded, thereby breaking the housing 300. Accordingly, the explosion-proof groove 123 is provided to reserve a space for the gas generated from the fusing part 113, thereby preventing the sounding expansion of the housing 300 and thus preventing the rupture of the housing 300.
According to some embodiments of the present disclosure, the short-circuit protection module 100 includes a fuse 110 and a housing 300, the fuse 110 includes a fuse portion 113, a first fuse fixing portion 111 and a second fuse fixing portion 112, and the first fuse fixing portion 111 is perpendicular to the second fuse fixing portion 112. The housing 300 is provided with a receiving chamber 310, a first housing fixing portion 121, and a second housing fixing portion 122, the receiving chamber 310 is used for receiving the fuse 110, the first housing fixing portion 121 and the second housing fixing portion 122 are perpendicular to each other, the first housing fixing portion 121 is engaged with the first fuse fixing portion 111, and the second housing fixing portion 122 is engaged with the second fuse fixing portion 112, so as to fix the fuse 110 to the housing 300.
The fuse 110 is a C-shaped fuse 110, and the cross-sectional area of the fusing part 113 is smaller than the minimum cross-sectional area of the remaining portion of the fuse 110. One end of the fuse 110 is perpendicular to the body of the fuse 110 and is provided with a first fuse fixing portion 111, and the other end is provided with a second fuse fixing portion 112, and is maintained in the same plane as the body of the fuse 110. The fuse 110 has three fusing parts 113 and two isolation grooves 114, and the isolation grooves 114 separate the fusing parts 113, thereby achieving the effect that the fusing parts 113 and the isolation grooves 114 are alternately distributed.
The housing 300 includes a base 120 and a top cover 130, and the housing 300 is an L-shaped housing 300 having a first housing fixing portion 121 provided at one end and a second housing fixing portion 122 provided at the other end. The base 120 and the cover 130 are coupled together by an interference fit, and the fuse 110 is shaped to match the shape of the housing 300. The housing 300 is provided with an explosion-proof groove 123, and the explosion-proof groove 123 is parallel to a fixing position of the fusing part 113, which is a position of the fusing part 113 when the fuse 110 is mounted to the housing 300.
The fuse 110 is provided with a fuse hole 115, the fuse hole 115 being a circular hole, the fuse hole 115 being provided at a minimum cross-sectional area of the fusing part 113. The fusing hole 115 may be provided with a tin spot by a tin spot method. The short-circuit protection module 100 further includes an arcing resistance 140, and the arcing resistance 140 is used for covering the fusing part 113. The arc resistive element 140 is made of ceramic silica gel and the fuse element 110 is made of copper.
The housing 300 is provided with a first inner wall 124 and a second inner wall, the fusing part 113 is provided with a first edge 116 and a second edge 117, the distance between the first inner wall 124 and the first edge 116 is a first distance, the distance between the second inner wall and the second edge 117 is a second distance, the length of the arcing resistance 140 is greater than the distance length, and the distance length is the maximum value between the first distance and the second distance. By designing the short-circuit protection film group in the embodiment, explosion or damage to the battery 200 caused by the short circuit two when the anode and the cathode of the battery 200 are communicated due to misoperation of workers is avoided.
According to the battery 200 of the second aspect embodiment of the present application, the battery 200 includes the short-circuit protection module 100 as in the first aspect embodiment described above. Specifically, referring to fig. 5 and 6, the battery 200 includes a battery 200 body and a post connection tab 210, and the post connection tab 210 is connected to the battery 200 body at one end and provided with a circular through hole at the other end, and is connected to the first fuse fixing part 111 and the first case fixing part 121 by a screw. In the fuse 110, the first fuse fixing portion 111 is completely covered by the housing 300, and the second fuse fixing portion 112 extends out of the receiving cavity 310, is connected to the second housing fixing portion 122, and is exposed to the external environment. By providing the short-circuit protection module 100 in the first embodiment on the battery 200, the battery 200 can automatically cut off the on-current when short-circuited.
In the description herein, references to the description of "some embodiments" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments in the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. Short-circuit protection module, its characterized in that includes:
the fuse comprises a fusing part, a first fusing fixing part and a second fusing fixing part, wherein the first fusing fixing part is obliquely arranged relative to the second fusing fixing part;
the shell, the shell is provided with and holds chamber, first shell fixed part and second shell fixed part, it is used for holding to hold the chamber the fuse-link, first shell fixed part for second shell fixed part slope sets up, first shell fixed part with the cooperation of first fuse-link, second shell fixed part with the cooperation of second fuse-link, in order to incite somebody to action the fuse-link is fixed in the shell.
2. The short-circuit protection module as claimed in claim 1, wherein the first fuse fixing portion is perpendicular to the second fuse fixing portion, and the first housing fixing portion is perpendicular to the second housing fixing portion.
3. The short-circuit protection module of claim 1, wherein the fuse has a plurality of fuse portions with isolation slots disposed therebetween.
4. The short-circuit protection module according to claim 2, wherein the fuse portion is provided with a fuse hole provided at a minimum cross-sectional area of the fuse portion.
5. The short-circuit protection module according to claim 4, wherein the fuse element is provided with a tin spot, and the tin spot covers the fuse hole.
6. The short-circuit protection module of claim 1, further comprising an arcing resistor for covering the fuse portion.
7. The short-circuit protection module of claim 6, wherein the housing is provided with a first inner wall and a second inner wall, the fuse portion is provided with a first edge and a second edge, the first inner wall is spaced from the first edge by a first distance, the second inner wall is spaced from the second edge by a second distance, the arcing resistance member has a length greater than a length of the first distance, and the length of the second distance is the greatest of the first distance and the second distance.
8. The short-circuit protection module of claim 1, wherein the housing comprises a base and a top cover, the base being removably connected to the top cover.
9. The short-circuit protection module according to claim 8, wherein the housing is provided with an explosion-proof groove parallel to a fixed position of the fusing part, the fixed position being a position of the fusing part when the fuse is mounted to the housing.
10. Battery, characterized in that it comprises a short-circuit protection module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902952.6U CN214068858U (en) | 2020-12-04 | 2020-12-04 | Short-circuit protection module and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902952.6U CN214068858U (en) | 2020-12-04 | 2020-12-04 | Short-circuit protection module and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214068858U true CN214068858U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022902952.6U Active CN214068858U (en) | 2020-12-04 | 2020-12-04 | Short-circuit protection module and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214068858U (en) |
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- 2020-12-04 CN CN202022902952.6U patent/CN214068858U/en active Active
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |