CN216054554U - Fuse, battery system and have its vehicle - Google Patents
Fuse, battery system and have its vehicle Download PDFInfo
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- CN216054554U CN216054554U CN202121421735.3U CN202121421735U CN216054554U CN 216054554 U CN216054554 U CN 216054554U CN 202121421735 U CN202121421735 U CN 202121421735U CN 216054554 U CN216054554 U CN 216054554U
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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 utility model discloses a fuse, a battery system and a vehicle with the same, wherein the fuse comprises a shell, wherein an accommodating cavity is formed in the shell; the conductive piece penetrates through the shell and is at least partially positioned in the accommodating cavity so as to divide the accommodating cavity into a first cavity and a second cavity; the explosion device is arranged on the shell and is suitable for generating high-pressure gas in the first cavity under a preset working condition; the piston is arranged in the first cavity and is suitable for cutting off the conductive piece under the pushing of high-pressure gas; wherein, a communicating channel is arranged on the piston and/or the shell, the inlet end of the communicating channel is positioned in the first cavity, and the outlet end of the communicating channel is positioned in the second cavity and is opposite to the cut-off position of the conductive piece. The fuse is provided with the piston and the explosion device, the shell or the piston is provided with the communicating channel, and after the piston cuts off the conductive piece, the communicating channel guides high-pressure gas to the second cavity or the cut conductive piece through the communicating channel so as to inhibit electric arcs.
Description
Technical Field
The utility model relates to the field of fuses, in particular to a fuse, a battery system and a vehicle with the fuse.
Background
In the related art, a fuse is a product for protecting a circuit when the circuit is in an overcurrent state, and the fuse fuses a conductive member based on heat generated by current flowing through the fuse, and there is a main problem that the thermal fuse cannot be matched with a load. For example, in the case of main circuit protection in a new energy vehicle, if the load is overloaded by a low multiple or short-circuited, the fuse with the low current specification cannot meet the condition of short-time overshoot of current, and if the fuse with the high current specification cannot meet the requirement of rapid protection.
In addition, in the lithium battery pack which provides energy for the current new energy vehicles, the output current is about several times of the rated current under the condition of short circuit, and the protection time of the fuse can not meet the requirement, so that the battery pack generates heat, fires and burns. Because the current heating and the breaking current heating and melting are resisted, the current flowing through the fuse, the protection device adopting the heating and the melting of the current, can not reach the breaking speed of a certain amplitude fault current which is fast enough under the condition of having a larger rated current or enduring stronger short-time overload/impact current (such as short-time heavy current when an electric automobile is started or climbs a slope), or realize higher rated current or endure larger overload/impact current without damage under the condition of the protection speed of the certain amplitude fault current which is fast enough.
At present, a quick-breaking cut-off opening structure mainly comprises a gas generating device, a conductive plate and a containing cavity after the conductive plate falls off, wherein the gas generating device generates high-pressure gas to drive a piston to break the conductive plate, and the conductive plate falls downwards into the containing cavity after being broken, so that the purpose of quickly breaking a circuit is realized, but electric arcs can be generated between the disconnected conductive plates and are limited by the fact that air is difficult to break large fault currents; the breaking capacity of the fuse is greatly influenced by air pressure and temperature and humidity; in the breaking process, the electric arc directly burns the piston knife, and the combustion of the piston knife can influence smooth arc extinction; in the breaking process, except for limited disturbance of the piston knife to the electric arc, no other structure or mechanism assists arc extinction.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a fuse, which includes a piston and an explosion device, wherein a communication channel is provided on a housing or the piston, and after the piston cuts off a conductive member, a high-pressure gas is guided to the cut conductive member through the communication channel to suppress an arc, and the fuse has a strong arc extinguishing capability, a fast response speed, and a high safety.
The utility model also provides a battery system with the fuse.
The utility model also provides a vehicle with the battery system.
The fuse according to the present invention includes a housing having an accommodation chamber formed therein; the conductive piece penetrates through the shell and is at least partially positioned in the accommodating cavity so as to divide the accommodating cavity into a first cavity and a second cavity; the explosion device is arranged on the shell and is suitable for generating high-pressure gas in the first cavity under a preset working condition; the piston is arranged in the first cavity and is suitable for cutting off the conductive piece under the pushing of high-pressure gas; and the piston and/or the shell are/is provided with a communication channel, and the communication channel is suitable for guiding high-pressure gas to the second cavity or the position where the conductive piece is cut off after the conductive piece is cut off by the piston.
The utility model provides a fuse, through setting up piston and explosive device, make the fuse cut off electrically conductive piece under the operating mode of predetermineeing, and set up the intercommunication passageway on casing or piston, the intercommunication passageway is behind electrically conductive piece is cut off to the piston, the intercommunication passageway is with first cavity and second cavity intercommunication, high-pressure gas in the first cavity leads the second cavity in order to form high velocity air through the intercommunication passageway, high velocity air can restrain and be produced electric arc by the electrically conductive piece department of cutting off, the arc extinguishing ability of fuse is strong, response speed is fast, the security performance is high.
According to one embodiment of the utility model, the communication channel comprises: a first channel formed in a sidewall of the first cavity and provided with the inlet end and an intermediate outlet end; and a second channel disposed on the piston, the second channel having a transit inlet end and the outlet end, the transit inlet end adapted to communicate with the intermediate outlet end after the piston shuts off the conductive member.
According to an embodiment of the present invention, the intermediate inlet end is located on a side of the piston and opposite to a side wall of the accommodating chamber, the inlet end and the intermediate outlet end of the first passage are located on the side wall of the accommodating chamber, and the inlet end is located on an upper side of the intermediate outlet end.
According to one embodiment of the utility model, the housing is provided with an air vent for communicating the second cavity with an external space.
According to an embodiment of the present invention, the communication channel is provided in the side wall of the accommodating chamber and has an inlet end and an outlet end, the inlet end is located in the side wall of the first chamber, and the outlet end is located in the side wall of the second chamber and is opposite to the position where the conductive member is cut off.
According to one embodiment of the present invention, the piston is provided with a cut-off portion protruding toward the conductive member.
According to an embodiment of the utility model, the cut-off portion gradually decreases in thickness in a direction away from the piston.
According to an embodiment of the present invention, the conductive member is provided with a notch facing the cut-off portion.
According to an embodiment of the present invention, two ends of the conductive member are exposed out of the housing, and two ends of the conductive member are respectively provided with a fixing hole.
The battery system according to the present invention is briefly described below.
The battery system according to the present invention includes a battery pack and a fuse connecting the battery pack with a load, the fuse being configured as the fuse of any one of the above embodiments. Because the fuse of the embodiment is arranged on the battery system, the battery system has the advantages of good safety, high reliability and high response speed. The vehicle according to the present invention is briefly described below.
According to the fuse provided by the embodiment of the utility model, the vehicle is provided with the fuse of the embodiment of the utility model, so that the vehicle has good circuit reliability, the response speed of the fuse is high, the arc is not easy to generate, and the safety of the vehicle is greatly improved.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
The above and/or additional aspects and advantages of the present invention 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 diagram of a fuse according to an embodiment of the present invention before a conductive member is cut;
fig. 2 is a schematic diagram of a fuse according to an embodiment of the present invention after a conductive member is cut.
Reference numerals:
the number of the fuses 1 is such that,
a housing 11, a first cavity 111, a second cavity 112,
the communication passage (15) is communicated with the air inlet,
a first channel 151, an inlet end 1511, an intermediate outlet end 1512,
a second channel 152, an intermediate inlet end 1521, an outlet end 1522,
an exhaust hole 101.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the related art, a fuse is a product for protecting a circuit when the circuit is in an overcurrent state, and the fuse fuses a conductive member based on heat generated by current flowing through the fuse, and there is a main problem that the thermal fuse cannot be matched with a load. For example, in the case of main circuit protection in a new energy vehicle, if the load is overloaded by a low multiple or short-circuited, the fuse with the low current specification cannot meet the condition of short-time overshoot of current, and if the fuse with the high current specification cannot meet the requirement of rapid protection.
In addition, in the lithium battery pack which provides energy for the current new energy vehicles, the output current is about several times of the rated current under the condition of short circuit, and the protection time of the fuse can not meet the requirement, so that the battery pack generates heat, fires and burns. Because the current heating and the breaking current heating and melting are resisted, the current flowing through the fuse, the protection device adopting the heating and the melting of the current, can not reach the breaking speed of a certain amplitude fault current which is fast enough under the condition of having a larger rated current or enduring stronger short-time overload/impact current (such as short-time heavy current when an electric automobile is started or climbs a slope), or realize higher rated current or endure larger overload/impact current without damage under the condition of the protection speed of the certain amplitude fault current which is fast enough.
At present, a quick-breaking cut-off opening structure mainly comprises a gas generating device, a conductive plate and a containing cavity after the conductive plate falls off, wherein the gas generating device generates high-pressure gas to drive a piston to break the conductive plate, and the conductive plate falls downwards into the containing cavity after being broken, so that the purpose of quickly breaking a circuit is realized, but electric arcs can be generated between the disconnected conductive plates and are limited by the fact that air is difficult to break large fault currents; the breaking capacity of the fuse is greatly influenced by air pressure and temperature and humidity; in the breaking process, the electric arc directly burns the piston knife, and the combustion of the piston knife can influence smooth arc extinction; in the breaking process, except for limited disturbance of the piston knife to the electric arc, no other structure or mechanism assists arc extinction.
A fuse 1 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.
The fuse 1 according to the present invention includes a housing 11, a conductive member 12, the explosion device 13 and the piston 14, a containing cavity is formed in the housing 11, the conductive member 12 penetrates through the housing 11 and is at least partially located in the containing cavity to divide the containing cavity into a first cavity 111 and a second cavity 112, the explosion device 13 is disposed in the housing 11 and is suitable for generating high-pressure gas in the first cavity 111 under a preset working condition, the piston 14 is disposed in the first cavity 111 and is suitable for cutting off the conductive member 12 under the pushing of the high-pressure gas, a communicating channel 15 is disposed on the piston 14 and/or the housing 11, an inlet end 1511 of the communicating channel 15 is located in the first cavity 111, an outlet end 1522 of the communicating channel 15 is located in the second cavity 112 and is opposite to a position where the conductive member 12 is cut off, and the communicating channel 15 is suitable for guiding the high-pressure gas to the position where the conductive member 12 is cut off after the conductive member 12 is cut off by the piston 14.
Piston 14 sets up in holding the chamber, and the high-pressure gas that explosive device 13 produced behind the predetermined operating mode will drive piston 14 fast movement, and piston 14 cuts off conducting piece 12 under the promotion of high-pressure gas to the power supply end that connects conducting piece 12 is disconnected with the load end, guarantees the reliability of fuse 1.
In the present application, since the explosive device 13 generates high-pressure gas in the first cavity 111 after explosion, and piston 14, after cutting conductor 12, the cut portion of conductor 12 may arc, the inlet port 1511 of the communicating channel 15 is located in the first cavity 111, the outlet port 1522 of the connecting channel is located in the second cavity 112 and opposite to the cut-off position of the conductive member 12, the communicating channel 15 connects the first cavity 111 and the second cavity 112, since the pressure of the first chamber 111 is much greater than that of the second chamber 112, after the communication passage 15 communicates the first chamber 111 with the second chamber 112, the air flow in the first chamber 111 rapidly passes through the communication passage 15 and is discharged to the second chamber 112, at the outlet end 1522 of the communication channel 15, a high-speed air flow is generated, which rapidly flows towards the conductive member 12, and blows the arc, which is elongated in the air flow, and is extinguished by means of the arc deionization.
The fuse 1 of the present application, through setting up piston 14 and explosive device 13, makes fuse 1 cut off conductive piece 12 under the preset operating mode, and wherein the preset operating mode can be, the electric current on first conductive piece 11 exceeds the preset value, or the electric current on the vehicle breaks down, or when producing the heavy current that exceeds the preset value in the circuit, or other circumstances that exist and threaten circuit safety.
The preset condition may be that the control system considers that the short circuit risk occurs in the circuit, and the control system controls the explosive device 13 to generate the high-pressure gas, or that the explosive device 13 is artificially and actively caused to generate the high-pressure gas in some special cases (for example, the control system fails but the related personnel considers that the short circuit risk occurs in the circuit).
And set up the communicating channel 15 on the body 11 or piston 14, after the communicating channel 15 cuts off the conductive piece 12 in the piston 14, the communicating channel 15 connects the first cavity 111 with the second cavity 112, the high-pressure gas in the first cavity 111 leads to the second cavity through the communicating channel 15 in order to form the high-speed air current, the high-speed air current can inhibit producing the electric arc in the conductive piece 12 cut off, the arc extinguishing ability of the fuse 1 is strong, the response speed is fast, the security performance is high.
According to one embodiment of the present invention, the communicating channel 15 comprises a first channel 151 and a second channel 152 communicating with each other, the first channel 151 being formed in a side wall of the first cavity 111 and having an inlet end 1511 and an intermediate outlet end 1512, the second channel 152 being disposed on the piston 14, the second channel 152 having an intermediate inlet end 1521 and an outlet end 1522, the intermediate inlet end 1521 being adapted to communicate with the intermediate outlet end 1522 after the piston 14 cuts off the conductive member 12.
As shown in fig. 1 and 2, the first channel 151 may be configured to be disposed on a sidewall of the housing 11 with the inlet end 1511 and the intermediate outlet end 1512 both located on the same sidewall, and the first channel 151 may be configured as a "U" shaped channel. In the initial state of the fuse 1, the piston 14 is located on the upper side of the inlet end 1511; the second channel 152 is configured as an "L" shaped channel disposed on the piston 14, the intermediate inlet end 1521 is located at the side of the piston 14 and is opposite to the side wall of the housing 11, and the outlet end 1522 is located at the lower side of the piston 14, when the explosive device 13 generates high-pressure gas, since the intermediate inlet end 1521 is located at the side of the piston 14 and does not communicate between the upper area of the piston 14 and the lower area of the piston 14, it can be used to maintain the high-pressure state of the upper area of the piston 14, and the piston 14 will move under the driving of the high-pressure gas and cut off the conductive member 12.
When piston 14 moves to cut off conductor 12, part of piston 14 contacts conductor 12 to prevent piston 14 from moving further, and intermediate inlet end 1521 on the side of piston 14 faces and communicates with intermediate outlet end 1512 to communicate first channel 151 with second channel 152, while inlet end 1511 in first channel 151 is located on the upper side of piston 14, and can introduce high-pressure gas into first channel 151, the high-pressure gas enters second channel 152 along inlet end 1511 and intermediate outlet end 1512, and enters second cavity 112 along second channel 152 inside piston 14, and the high-pressure gas is discharged from outlet end 1522 to generate high-speed gas flow at cut-off conductor 12 to blow out the arc generated at the cut-off position of conductor 12.
In another embodiment according to the present invention, the communication channel 15 may be provided only on the side wall of the housing 11, the communication channel 15 has an inlet end 1511 and an outlet end 1522, the inlet end 1511 is located on the side wall of the first cavity 111, and the outlet end 1522 is located on the side wall of the second cavity 112 and is opposite to the position where the conductive member 12 is cut off. In the fuse 1, in an initial state, the piston 14 is located at an upper portion of the first chamber 111, and the inlet port 1511 is located at a lower side of the piston 14, the piston 14 may divide the first chamber 111 into an upper space and a lower space which are spaced apart from each other, after the high-pressure gas is generated from the explosion device 13, the upper space generates the high-pressure gas to drive the piston 14 to move, the piston 14 passes through the inlet port 1511 in a downward movement process to communicate the inlet port 1511 with the upper space, so that the high-pressure gas may enter the communicating passage 15, the high-pressure gas is introduced into the second chamber 112 through the outlet port 1522 of the communicating passage 15, the high-pressure gas flows toward a position where the conductive member 12 is cut off, and the arc generated at the cut-off position of the conductive member 12 is blown off.
According to an embodiment of the present invention, the housing 11 is provided with the exhaust hole 101 for communicating the second cavity 112 with the external space, and the exhaust hole 101 can keep the pressure of the second cavity 112 the same as that of the external space, so that the high-pressure gas can smoothly enter the second cavity 112 through the communication channel 15, thereby increasing the flow rate of the gas flowing through the communication channel 15 and improving the arc extinguishing effect of the fuse 1.
According to an embodiment of the present invention, the piston 14 is provided with a cut-off portion 141 protruding toward the conductive member 12, the width of the cut-off portion 141 is smaller than that of the piston 14, concentration of impact force is increased, and thus the conductive member 12 is more easily cut off, and the thickness of an end of the cut-off portion 141 away from the piston 14 is gradually reduced to form a tapered shape, so that the cut-off portion 141 can more easily cut off the conductive member 12. Wherein the outlet end 1522 is located at the bottom wall of the cut-off portion 141.
According to an embodiment of the present invention, the conductive member 12 is provided with the notch 121 facing the cut-off portion 141, and the notch 121 provided on the conductive member 12 may weaken the structural strength of the conductive member 12 to more easily achieve stress concentration when the cut-off portion 141 impacts the conductive member 12, thereby completely cutting off the conductive member 12 and improving the reliability of the fuse 1.
According to an embodiment of the present invention, both ends of the conductive member 12 are exposed out of the housing 11, and both ends of the conductive member 12 are respectively provided with fixing holes 122, the conductive member 12 may be configured in a flat plate-shaped structure, the conductive member 12 penetrates and is exposed out of both sides of the housing 11 to be adapted to be connected to the power supply terminal and the load terminal, respectively, two fastening members are provided to penetrate the fixing holes 122 of both ends of the conductive member 12, respectively, to connect one end of the conductive member 12 with the power supply terminal, and to connect the other end of the conductive member 12 with the load terminal, to achieve fixing and connection of the fuse 1.
The battery system according to the present invention is briefly described below.
The battery system according to the present invention includes a battery pack and a fuse 1, the fuse 1 connecting the battery pack with a load, the fuse 1 being constructed as the fuse of any one of the above-described embodiments. Because the fuse 1 of the above embodiment is arranged on the battery system, the battery system has the advantages of good safety, high reliability and fast response speed.
The vehicle according to the present invention is briefly described below.
According to the fuse 1 of the embodiment provided on the vehicle of the present invention, since the fuse 1 of the embodiment is provided on the vehicle of the present invention, the reliability of the circuit of the vehicle is good, the response speed of the fuse 1 is fast, the arc is not easily generated, and the safety of the vehicle is greatly improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 of the utility model. 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 of the utility model 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 utility model, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A fuse, comprising:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein an accommodating cavity is formed in the shell;
the conductive piece penetrates through the shell and is at least partially positioned in the accommodating cavity so as to divide the accommodating cavity into a first cavity and a second cavity;
the explosion device is arranged on the shell and is suitable for generating high-pressure gas in the first cavity under a preset working condition;
the piston is arranged in the first cavity and is suitable for cutting off the conductive piece under the pushing of high-pressure gas; wherein
And a communicating channel is arranged on the piston and/or the shell and is suitable for guiding high-pressure gas to the second cavity or the position where the conductive piece is cut off after the conductive piece is cut off by the piston.
2. The fuse of claim 1, wherein the communication channel comprises:
a first channel formed in a sidewall of the first cavity and provided with the inlet end and an intermediate outlet end;
a second channel disposed on said piston, said second channel having a transit inlet end and said outlet end, said transit inlet end adapted to communicate with said intermediate outlet end after said piston shuts off said conductive member;
the inlet end of the first channel is communicated with the first cavity, and the outlet end of the second channel is communicated with the second cavity after the conductive piece is cut off by the piston.
3. The fuse of claim 2, wherein the intermediate entrance end is located on a side of the piston and opposite a side wall of the first chamber, the entrance end and the intermediate exit end are both located on a side wall of the first chamber, and the entrance end is located on an upper side of the intermediate exit end.
4. The fuse of claim 1, wherein the communication passage is provided in a side wall of the housing chamber and has an inlet end located in a side wall of the first chamber and an outlet end located in a side wall of the second chamber and opposed to a position where the second chamber or the conductive member is cut off.
5. A fuse as per claim 2 or 4, characterised in that the housing is provided with a vent hole communicating the second chamber with the external space.
6. A fuse as claimed in claim 2 or 4, wherein the piston is provided with a cut-off portion projecting toward the conductive member.
7. A fuse as claimed in claim 6, characterised in that the cut-off portion tapers in thickness in a direction away from the piston.
8. The fuse as claimed in claim 6, wherein the conductive member is provided with a notch facing the cut-off portion.
9. The fuse of claim 1, wherein two ends of the conductive member are exposed from the housing, and two ends of the conductive member are respectively provided with fixing holes.
10. A battery system, comprising:
a battery pack;
a fuse connecting the battery pack to a load, the fuse being configured as the fuse of any one of claims 1-9.
11. A vehicle characterized by comprising the fuse of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121421735.3U CN216054554U (en) | 2021-06-24 | 2021-06-24 | Fuse, battery system and have its vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121421735.3U CN216054554U (en) | 2021-06-24 | 2021-06-24 | Fuse, battery system and have its vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN216054554U true CN216054554U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121421735.3U Active CN216054554U (en) | 2021-06-24 | 2021-06-24 | Fuse, battery system and have its vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115149163A (en) * | 2022-08-17 | 2022-10-04 | 傅美燕 | Safety type self-pressure-relief explosion-proof storage battery |
-
2021
- 2021-06-24 CN CN202121421735.3U patent/CN216054554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115149163A (en) * | 2022-08-17 | 2022-10-04 | 傅美燕 | Safety type self-pressure-relief explosion-proof storage battery |
| CN115149163B (en) * | 2022-08-17 | 2023-08-15 | 新疆美特智能安全工程股份有限公司 | Safe type is from explosion-proof battery of pressure release |
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