CN218867322U - Uncovering detection protection structure and battery pack device - Google Patents
Uncovering detection protection structure and battery pack device Download PDFInfo
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- CN218867322U CN218867322U CN202222868226.6U CN202222868226U CN218867322U CN 218867322 U CN218867322 U CN 218867322U CN 202222868226 U CN202222868226 U CN 202222868226U CN 218867322 U CN218867322 U CN 218867322U
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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
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Abstract
The utility model provides a pair of uncap and detect protection architecture and battery package device relates to and overhauls protective apparatus technical field to optimize to a certain extent and detect protection architecture, improve operating personnel's safety. The utility model provides a cover opening detection protection structure, which comprises a power supply component, a detection component, a conduction component and a cover body; the conductive assembly comprises a first conductive member and a second conductive member, and the detection assembly comprises a first detection member and a second detection member; the positive pole and the negative pole of the power supply component are respectively connected with the first detection component and the second detection component, one end of the first conduction component is connected with the first detection component, one end of the second conduction component is connected with the second detection component, and the other ends of the first conduction component and the second conduction component are both contacted with the cover body to form a detection loop.
Description
Technical Field
The utility model belongs to the technical field of overhaul protection equipment technique and specifically relates to a uncap and detect protection architecture and battery package device is related to.
Background
With the development of new energy automobiles, new energy automobiles gradually develop in a safer and more detailed direction, and with the popularization of the CTB (Cell to Body) battery automobile Body integration technology, it is a big problem how to avoid the damage of high voltage of the vehicle to the maintainers under the condition that the battery pack is not detached from the automobile Body. At present, the common scheme is that a microswitch with a spring structure is adopted to detect the state of an upper cover of a battery pack so as to cut off a high-voltage loop and ensure the safety of operators.
However, the spring structure has the disadvantages of poor stability and reliability. Once the trigger is failed, the personal safety of the operator can be greatly influenced.
Therefore, it is desirable to provide a cover opening detection protection structure and a battery pack device to solve the problems in the prior art to some extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an uncap and detect among protection architecture and the battery pack to optimize to a certain extent and detect protection architecture, avoid overhauing the position and take high-voltage electricity, endanger operating personnel's personal safety.
The utility model provides a cover opening detection protection structure, which comprises a power supply component, a detection component, a conduction component and a cover body; the conductive assembly comprises a first conductive member and a second conductive member, and the detection assembly comprises a first detection member and a second detection member; the positive electrode and the negative electrode of the power supply component are respectively connected with the first detection component and the second detection component, one end of the first conduction component is connected with the first detection component, one end of the second conduction component is connected with the second detection component, and the other ends of the first conduction component and the second conduction component are both in contact with the cover body to form a detection loop.
The first conducting component and the second conducting component both comprise an insulating part and a conducting part, the insulating part is coated outside the conducting part, one end of the conducting part is respectively connected with the corresponding first detection component and the second detection component, and the other end of the conducting part is in contact with the cover body.
Specifically, the utility model provides a uncap and detect protection architecture still includes the intercommunication subassembly, electrically conductive piece is the tubular structure, the locating hole has been seted up to the position that corresponds electrically conductive piece on the lid, the one end of intercommunication subassembly is passed the lid gets into in the electrically conductive piece, and pass electrically conductive piece and corresponding first detection component with the second detects the component and is connected, the other end of intercommunication subassembly will the lid compress tightly in first conduction component with the terminal surface of second conduction component.
Furthermore, a first connecting cavity and a second connecting cavity are formed in the conductive piece, and openings of the first connecting cavity and the second connecting cavity are opposite; the communication assembly comprises a first communication piece and a second communication piece, one end of the first communication piece penetrates through the cover body to enter the first connecting cavity, one end of the second communication piece enters the second connecting cavity, and the other end of the second communication piece is connected with the corresponding first detection component and the second detection component.
Specifically, the insulating part is of a round table-shaped structure, and the end face of one end with the large diameter of the insulating part is abutted to the cover body.
Specifically, the insulating member faces the outer wall surface of one end of the cover body, and a positioning groove is formed in the circumferential direction of the insulating member.
Wherein, the utility model provides a uncap and detect protection architecture still includes the locking subassembly, the one end of locking subassembly is connected with the casing of battery package device, and the other end will the lid compress tightly with on the casing.
Specifically, the uncovering detection protection structure provided by the utility model further comprises a sealing element, the size of the sealing element is the same as that of the cover body, the shape of the sealing element is matched, and the sealing element is positioned between the cover body and the conduction assembly; the position that corresponds on the sealing member conduction subassembly with the locking Assembly is formed with the hole of dodging, the sealing member corresponds the access hole position of casing is formed with the mouth of dodging.
Further, the locking assembly comprises a first locking piece and a second locking piece, and the first locking piece and the second locking piece are both riveting bolts; the first locking piece, the second locking piece, the first communicating piece and the second communicating piece are positioned at four corners of the cover body.
Compared with the prior art, the utility model provides a uncap and detect protection architecture has following advantage:
the utility model provides a cover opening detection protection structure, which comprises a power supply component, a detection component, a conduction component and a cover body; the conductive assembly comprises a first conductive member and a second conductive member, and the detection assembly comprises a first detection member and a second detection member; the positive pole and the negative pole of the power supply component are respectively connected with the first detection component and the second detection component, one end of the first conduction component is connected with the first detection component, one end of the second conduction component is connected with the second detection component, and the other ends of the first conduction component and the second conduction component are both contacted with the cover body to form a detection loop.
From this analysis, it is found that a detection circuit can be formed by connecting one end of the first detection member to the positive electrode of the power supply member, one end of the second detection member to the negative electrode of the power supply member, the other end of the first detection member to one end of the first conductive member, the other end of the second detection member to one end of the second conductive member, and both the other ends of the first conductive member and the second conductive member to the cover, and power can be supplied to the entire detection circuit by the power supply member.
And be the low-tension electricity in the detection return circuit in this application, when needs operating personnel overhauls, dismantle the lid to destroy the detection return circuit, first detection component and second detection component send signal to the controller, force the disconnection high-tension electricity through the whole car of controller control, and then can guarantee that whole battery package device is in low voltage state or no voltage state, with the personal safety of guaranteeing the maintainer maintenance in-process.
In addition, the utility model also provides a battery pack device, which comprises a shell, an electric part and the cover opening detection protection structure which is arranged corresponding to the electric part; the electrical component is arranged in the shell.
Because there are multiple electric spare among the battery package, like fuse and relay etc, consequently, detect protection architecture and electric spare through uncapping that makes this application provide and correspond the setting to when needs maintain the change to electric spare, need not to influence other battery package inner structures, and can guarantee to be in low pressure state at the maintenance stage, improve maintainer's maintenance security.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded schematic view of a cover opening detection protection structure provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a first view angle of the uncapping detection protecting structure provided by the embodiment of the invention;
fig. 3 is a cross-sectional view of a first conducting member in the uncovering detection protection structure provided by the embodiment of the present invention.
In the figure: 1-a first conductive member; 101-an insulator; 102-a conductive member; 1021-a first connection chamber; 1022-a second connecting lumen; 1023-a positioning slot; 2-a second conductive member; 3-a cover body; 4-a first communication member; 5-a second communication member; 6-a first locking member; 7-a seal; 701-avoiding holes; 702-an avoidance port; 8-a shell; 801-access hole; 9-electrical components.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically 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.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …", "upper", "below … …" and "lower" may be used herein to describe the relationship of one element to another element as shown in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
As shown in fig. 1, the utility model provides a cover opening detection protection structure, which comprises a power supply component, a detection component, a conduction component and a cover body 3; the conducting assembly comprises a first conducting member 1 and a second conducting member 2, and the detecting assembly comprises a first detecting member and a second detecting member; the positive pole and the negative pole of the power supply component are respectively connected with the first detection component and the second detection component, one end of the first conduction component 1 is connected with the first detection component, one end of the second conduction component 2 is connected with the second detection component, and the other ends of the first conduction component 1 and the second conduction component 2 are both contacted with the cover body 3 to form a detection loop.
Compared with the prior art, the utility model provides a uncap and detect protection architecture has following advantage:
the utility model provides a uncap and detect protection architecture, one end through making first detection component is connected with the positive pole of power supply component, the one end that the second detected the component is connected with the negative pole of power supply component, the other end of first detection component is connected with the one end of first conduction component 1, the other end that the second detected the component is connected with the one end of second conduction component 2, the other end of first conduction component 1 and the other end of second conduction component 2 all contact with lid 3, thereby can form the detection return circuit, provide electric power for the whole detection return circuit through the power supply component.
And be the low tension electricity in the detection return circuit in this application, when needs operating personnel to overhaul, dismantle lid 3 to destroy the detection return circuit, first detection component and second detection component are to the controller signals, break off high-tension electricity through the whole car of controller control force, and then can guarantee that whole battery package device is in low pressure state or no voltage state, with the personal safety of guaranteeing the maintainer maintenance in-process.
It should be added that in this application, the positive electrode of the first detection member connected to the power supply member is a positive electrode of HV I L (H I vo L terminal I ock) high-voltage interlock detected by a BMS (Battery Management System) Battery Management System, the negative electrode of the second detection member connected to the high-voltage interlock, and after the cover 3 is removed, the detection loop passing through the first detection member and the second detection member is disconnected, so as to determine a high-voltage interlock fault, and further, the high voltage of the entire vehicle can be forcibly converted into a low voltage, so as to ensure the personal safety of the service personnel during operation.
After the cover body 3 is installed back to the corresponding position after the overhaul is completed, the detection loop is recovered to be conducted, so that the high-voltage interlocking is judged to be recovered, and the low voltage of the whole vehicle can be recovered to the high voltage.
Since the conduction assembly needs to pass through the battery pack device to realize the butt joint between the detection assembly and the cover body 3 in the present application, in order to avoid the electrification of the shell 8, the first conduction member 1 and the second conduction member 2 in the present application both include the insulation part 101 and the conductive part 102, the insulation part 101 covers the outside of the conductive part 102, one end of the conductive part 102 is respectively connected with the corresponding first detection member and the second detection member, and the other end is in contact with the cover body 3.
During actual connection, the insulating piece 101 is in contact with the housing 8, and preferably, in the present application, after the first conducting member 1 and the second conducting member 2 are installed at corresponding positions of the housing 8, glue is applied to gaps between the first conducting member 1 and the second conducting member 2 and the housing 8, and the glue is an insulating glue, so that not only can the connection between the first conducting member 1 and the housing 8 and the connection between the second conducting member 2 and the housing 8 be more stable, but also the electrification of the housing 8 can be reduced to a certain extent, and problems such as electric shock or electric leakage short circuit are caused in the using process.
It can be understood that, in the present application, the conductive element 102 is a metal conductor, two ends of the conductive element 102 of the first conductive element 1 are respectively connected to the first detection element and the cover 3, two ends of the conductive element 102 of the second conductive element 2 are respectively connected to the second detection element and the cover 3, and an end surface of the insulating element 101 facing one end of the cover 3 is attached to the cover 3, and meanwhile, in the present embodiment, an end portion of the conductive element 102 is attached to the cover 3, so that the cover 3 can be electrified, and a detection loop is formed.
Based on above-mentioned structure, the structure of conduction subassembly has further been optimized in this application, as shown in fig. 1 and fig. 2, the utility model provides a uncap and detect protection architecture still includes the intercommunication subassembly, and electrically conductive piece 102 is the tubular structure, and the locating hole has been seted up to the position that corresponds electrically conductive piece 102 on the lid 3, and the one end of intercommunication subassembly is passed lid 3 and is got into electrically conductive piece 102 in to pass electrically conductive piece 102 and be connected with the first detection component and the second detection component that correspond, the other end of intercommunication subassembly compresses tightly lid 3 in the terminal surface of first conduction component 1 and second conduction component 2.
By making the conductive member 102 cylindrical and providing the communicating member in the conductive member 102, the lid 3 can be pressed against the end surfaces of the first conductive member 1 and the second conductive member 2, and can be brought into better contact with the lid 3 by the communicating member, so that the lid 3 can be charged stably to form a detection circuit.
Preferably, as shown in fig. 1 to 3, a first connection cavity 1021 and a second connection cavity 1022 are formed in the conductive member 102 in the present application, and openings of the first connection cavity 1021 and the second connection cavity 1022 are opposite; the communicating component includes a first communicating member 4 and a second communicating member 5, one end of the first communicating member 4 passes through the cover 3 and enters the first connecting cavity 1021, one end of the second communicating member 5 enters the second connecting cavity 1022, and the other end is connected with the corresponding first detecting member and the second detecting member.
Further preferably, as shown in fig. 3, the insulator 101 in the present application has a truncated cone-shaped structure, and an end surface of one end of the insulator 101 having a large diameter abuts against the cover 3.
In actual installation, the first conducting member 1 and the second conducting member 2 need to be installed from the outside to the inside of the housing 8, and the insulating part 101 covers the outside of the conductive part 102, so that the insulating part 101 contacts with the housing 8, when the insulating part 101 is in a truncated cone-shaped structure, when the insulating part 101 is installed, one end with a smaller diameter extends into the housing 8, and one end with a larger diameter of the insulating part 101 can be knocked by a tool, so that the insulating part 101 and the housing 8 can be connected more and more tightly, and the problem of deviation can not occur.
It can be understood that, as shown in fig. 3, in the present application, the insulating member 101 faces the outer wall surface of one end of the cover 3, and a positioning groove 1023 is formed along the circumferential direction of the insulating member 101.
Because the first conduction component 1 and the second conduction component 2 in the present application are connection media for connecting the electrical component 9 and the detection assembly in the casing 8 with the casing 3 outside the casing 8, it is necessary to fix the relative positions of the first conduction component 1 and the second conduction component 2 with the casing 8 stably, so as to avoid the problems that the detection circuit is misjudged due to virtual connection and high voltage generates danger in the non-maintenance stage.
It can be understood that, for the stability of being connected between guaranteeing lid 3 and conduction subassembly's terminal surface and casing 8, as shown in fig. 1 with fig. 2, the utility model provides a uncap and detect protection architecture still includes the locking subassembly, and the one end of locking subassembly is connected with casing 8 of battery package device, and the other end compresses tightly lid 3 with casing 8 on.
Preferably, the locking assembly in the present application includes a first locking member 6 and a second locking member, and the first locking member 6 and the second locking member are both rivet bolts, by which the cover body 3 and the housing 8 can be stably and tightly connected. Further preferably, as shown in fig. 1, the first locking member 6, the second locking member, the first communicating member 4 and the second communicating member 5 are located at four corners of the cover 3 in the present application.
The first locking pieces 6, the second locking pieces, the first communicating pieces 4, and the second communicating pieces 5 located at the four corners of the lid 3 can stably connect the lid 3 and the case 8 and the lid 3 and the conductive member.
It should be added here that, since the housing 8 needs to be uncharged after installation, and the blind rivet bolt is in contact with the cover 3, when the cover 3 is electrified, the blind rivet bolt can also conduct electricity, so that in the present application, the outer wall surface of the blind rivet bolt is made of an insulating material, and at least the position in contact with the cover 3 is coated with the insulating material, so as to avoid the problem that the housing 8 is electrified.
Specifically, as shown in fig. 1 and fig. 2, the uncovering detection protection structure provided by the present invention further includes a sealing member 7, the size of the sealing member 7 is the same as that of the cover body 3, the shape of the sealing member 7 is matched, and the sealing member 7 is located between the cover body 3 and the conduction assembly; an avoiding hole 701 is formed on the sealing element 7 at the position corresponding to the conducting assembly and the locking assembly, and an avoiding hole 702 is formed on the sealing element 7 at the position corresponding to the access hole 801 of the shell 8.
As shown in fig. 2, since the end surfaces of the insulating members 101 of the first conducting member 1 and the second conducting member 2 are partially protruded from the housing 8 after being mounted, in order to avoid the inclination of the cover 3 after being mounted, the sealing member 7 is additionally mounted between the housing 8 and the cover 3 in the present application, and the cover 3 is in a flat state after being mounted through the sealing member 7, so that the stability of the use of the overall structure can be ensured to a certain extent.
In addition, the utility model also provides a battery pack device, which comprises a shell 8, an electric part 9 and the cover opening detection protection structure which is arranged corresponding to the electric part 9; the electrical component 9 is disposed in the housing 8.
Because there are multiple electric spare 9 in the battery package, like fuse and relay etc, consequently, detect protection architecture and electric spare 9 and correspond the setting through uncapping that makes this application provide to when needs maintain electric spare 9 and change, need not to influence other battery package inner structures, and can guarantee to be in the low pressure state at the maintenance stage, improve maintainer's maintenance security.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A uncovering detection protection structure is characterized by comprising a power supply component, a detection component, a conduction component and a cover body;
the conductive assembly comprises a first conductive member and a second conductive member, and the detection assembly comprises a first detection member and a second detection member;
the positive electrode and the negative electrode of the power supply component are respectively connected with the first detection component and the second detection component, one end of the first conduction component is connected with the first detection component, one end of the second conduction component is connected with the second detection component, and the other ends of the first conduction component and the second conduction component are both in contact with the cover body to form a detection loop.
2. The structure for cover opening detection and protection according to claim 1, wherein each of the first conducting member and the second conducting member includes an insulating member and a conductive member, the insulating member is wrapped outside the conductive member, and one end of the conductive member is connected to the corresponding first detecting member and the corresponding second detecting member, respectively, and the other end of the conductive member is in contact with the cover body.
3. The cover opening detection and protection structure according to claim 2, further comprising a communication assembly, wherein the conductive piece is a cylindrical structure, a positioning hole is formed in the cover body at a position corresponding to the conductive piece, one end of the communication assembly penetrates through the cover body to enter the conductive piece and penetrates through the conductive piece to be connected with the corresponding first detection member and the second detection member, and the other end of the communication assembly presses the cover body against the end surfaces of the first conduction member and the second conduction member.
4. The cover opening detection and protection structure according to claim 3, wherein a first connection cavity and a second connection cavity are formed in the conductive member, and openings of the first connection cavity and the second connection cavity are opposite;
the communication assembly comprises a first communication piece and a second communication piece, one end of the first communication piece penetrates through the cover body to enter the first connecting cavity, one end of the second communication piece enters the second connecting cavity, and the other end of the second communication piece is connected with the corresponding first detection component and the second detection component.
5. The structure for inspecting and protecting a cover opening of a refrigerator as claimed in claim 2, wherein the insulating member has a truncated cone shape, and an end surface of an end of the insulating member having a large diameter abuts against the cover.
6. The structure for cover opening detection and protection according to claim 2, wherein the insulating member faces an outer wall surface of one end of the cover body, and a positioning groove is formed along a circumferential direction of the insulating member.
7. The uncovering detection and protection structure according to claim 4, further comprising a locking assembly, wherein one end of the locking assembly is connected with a shell of a battery pack device, and the other end of the locking assembly presses the cover body onto the shell.
8. The cover opening detection and protection structure according to claim 7, further comprising a sealing member, wherein the sealing member has the same size and the same shape as the cover body, and is located between the cover body and the conductive assembly;
the position that corresponds on the sealing member conduction subassembly with the locking Assembly is formed with the hole of dodging, the sealing member corresponds the access hole position of casing is formed with the mouth of dodging.
9. The cover opening detection and protection structure according to claim 7, wherein the locking assembly comprises a first locking piece and a second locking piece, and the first locking piece and the second locking piece are both rivet bolts;
the first locking piece, the second locking piece, the first communicating piece and the second communicating piece are positioned at four corners of the cover body.
10. A battery pack device, comprising a housing, an electrical component, and the lid opening detection protection structure of any one of claims 1 to 9 provided in correspondence with the electrical component;
the electrical component is arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222868226.6U CN218867322U (en) | 2022-10-28 | 2022-10-28 | Uncovering detection protection structure and battery pack device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222868226.6U CN218867322U (en) | 2022-10-28 | 2022-10-28 | Uncovering detection protection structure and battery pack device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218867322U true CN218867322U (en) | 2023-04-14 |
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| CN202222868226.6U Active CN218867322U (en) | 2022-10-28 | 2022-10-28 | Uncovering detection protection structure and battery pack device |
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| Country | Link |
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| CN (1) | CN218867322U (en) |
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- 2022-10-28 CN CN202222868226.6U patent/CN218867322U/en active Active
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