CN216850246U - Battery pin and battery cover plate - Google Patents

Battery pin and battery cover plate Download PDF

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Publication number
CN216850246U
CN216850246U CN202123398918.0U CN202123398918U CN216850246U CN 216850246 U CN216850246 U CN 216850246U CN 202123398918 U CN202123398918 U CN 202123398918U CN 216850246 U CN216850246 U CN 216850246U
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CN
China
Prior art keywords
battery
pin
cover plate
pin body
shell
Prior art date
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Active
Application number
CN202123398918.0U
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Chinese (zh)
Inventor
励建炬
唐耀辉
张中涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Kedali Industry Co ltd
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Shenzhen Kedali Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Kedali Industry Co ltd filed Critical Shenzhen Kedali Industry Co ltd
Priority to CN202123398918.0U priority Critical patent/CN216850246U/en
Application granted granted Critical
Publication of CN216850246U publication Critical patent/CN216850246U/en
Priority to DE202022104222.5U priority patent/DE202022104222U1/en
Priority to FR2208193A priority patent/FR3131661B3/en
Priority to PCT/CN2022/112454 priority patent/WO2023124106A1/en
Priority to HUU2200114U priority patent/HU5578U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The utility model belongs to the technical field of the battery, a battery pin and battery apron is disclosed, battery pin are used for connecting the electric core electricity of battery in the utmost point post of battery, and battery pin includes the pin body, and connects in the protective housing of pin body, and the protective housing is made by insulating material, and the protective housing is used for separating the casing of pin body and battery. The utility model provides a battery pin, pin body one end is connected in the utmost point post of battery, and the other end stretches into in the casing of battery and connects in the utmost point ear of electric core, is provided with the protective housing on the pin body to the inner wall of the casing of pin body and battery has been separated, the casing contact of pin body and battery has been solved, the problem that leads to the inside short circuit of electric core.

Description

Battery pin and battery cover plate
Technical Field
The utility model relates to a battery technology field especially relates to a battery pin and battery apron.
Background
The power battery has the advantages of high specific energy, more recycling times, long storage time and the like, is widely applied to portable electronic equipment such as mobile phones, digital cameras and portable computers, and is also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like. The power battery comprises a shell of the battery, a battery core and a cover plate, wherein the shell of the battery is provided with an opening, the battery core is arranged in the shell of the battery, and the cover plate is used for sealing the opening. Be provided with utmost point post and connect in the pin of utmost point post on the apron, the pin stretches into the casing of battery and the utmost point ear connection on the electricity core. However, the pins extend into the shell of the battery, so that the internal short circuit of the battery core is easily caused by shaking or short circuit between the pins and the shell of the battery due to assembly tolerance, and the working performance of the power battery is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery pin prevents the casing short circuit of pin and battery.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a battery pin for with the electric connection of the electric core of battery in the utmost point post of battery, the battery pin includes the pin body, and connect in the protective housing of pin body, the protective housing is made by insulating material, the protective housing be used for with the pin body with the casing of battery separates.
Preferably, the protective shell is clamped with the pin body.
Preferably, the protective shell includes two first plates disposed opposite to each other and a second plate connecting the two first plates and forming a U-shaped cavity, a first jaw is disposed on a side surface of each first plate facing the other first plate, and the guiding body is limited between the bottom wall of the U-shaped cavity and the first jaw.
Preferably, the pin body includes:
the connecting part is provided with a through hole for the pole to penetrate through;
the one end of joint portion connect in connecting portion are in order to form L shape structure the pin body, the other end is equipped with the protective housing.
Preferably, the pin body is provided with a heat insulation shell, the heat insulation shell is connected to the pin body, and the heat insulation shell is used for preventing heat generated by the pin body from being transferred to the battery cell insulating film.
Preferably, the heat insulating shell is clamped to the pin body.
The utility model also provides a battery cover plate, including two different pins of polarity, at least one the pin is the aforesaid the battery pin.
Preferably, the battery cover plate further includes:
the pins are arranged on one side of the cover plate body;
the polar columns correspond to the pins one to one, one ends of the polar columns are connected to the corresponding pins, and the other ends of the polar columns penetrate through the cover plate body;
go up the plastic, go up the plastic set up in the apron body back to on the side of pin, utmost point post runs through go up the plastic.
Preferably, the battery cover plate further comprises a lower plastic, the lower plastic is clamped between the cover plate body and the pins, and the pole penetrates through the lower plastic.
Preferably, the battery cover plate further comprises an explosion-proof sheet, an explosion-proof hole is formed in the cover plate body, and the explosion-proof sheet is arranged in the explosion-proof hole.
The utility model has the advantages that:
the utility model provides a battery pin, pin body one end is connected in the utmost point post of battery, and the other end stretches into in the casing of battery and connects in the utmost point ear of electric core, is provided with the protective housing on the pin body to the inner wall of the casing of pin body and battery has been separated, the casing contact of pin body and battery has been solved, the problem that leads to the inside short circuit of electric core.
The utility model also provides a battery cover plate, including the different pin of two polarities, at least one pin is foretell battery pin. The utility model provides a battery cover plate includes anodal pin and negative pole pin, and the structure of anodal pin and negative pole pin all is the same with foretell battery pin structure, and the polarity of anodal pin and negative pole pin is different. The utility model provides a battery cover plate has kept apart the inner wall of the casing of anodal pin and battery to and the inner wall of the casing of negative pole pin and battery, has solved the casing contact of anodal pin or negative pole pin and battery, leads to the problem of the inside short circuit of electric core.
Drawings
Fig. 1 is a schematic structural diagram of a battery pin according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a protective casing according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a thermal insulation shell according to an embodiment of the present invention;
fig. 4 is an exploded view of a battery cover plate according to an embodiment of the present invention.
In the figure:
1. a pin body; 11. a connecting portion; 12. a clamping part; 121. mounting a plate; 122. a lower connecting plate; 123. an upper connecting plate;
2. a protective shell; 21. a first plate; 211. a first jaw; 22. a second plate;
3. a thermally insulating shell; 31. a second jaw; 32. a third jaw;
100. a cover plate body; 101. a first limit groove; 102. an explosion-proof hole;
200. plastic is coated; 201. a second limit groove;
300. plastic is discharged;
400. an explosion-proof sheet; 401. sticking a film on the explosion-proof sheet;
501. a positive pole column; 502. a negative electrode post;
601. a positive electrode pin; 602. a negative electrode pin;
700. a lead film;
800. connecting blocks;
900. and a seal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment provides a battery pin for electrically connecting a battery core of a battery to a pole of the battery, as shown in fig. 1 to 3, the battery pin includes a pin body 1 and a protective shell 2 connected to the pin body 1, the protective shell 2 is made of an insulating material, and the protective shell 2 is used for separating the pin body 1 from a shell of the battery.
The battery pin that this embodiment provided, 1 one end of pin body is connected in the utmost point post of battery, and the other end stretches into in the casing of battery and connects in the utmost point ear of electric core, is provided with protective housing 2 on pin body 1 to the inner wall of the casing of pin body 1 and battery has been separated, the casing contact of pin body 1 with the battery has been solved, the problem that leads to the inside short circuit of electric core.
Specifically, as shown in fig. 1 and 2, the protective shell 2 is connected with the pin body 1 in a clamping mode, so that the protective shell 2 is detachably connected with the pin body 1, the installation is convenient, the protective shell 2 can be installed rapidly when the protective shell 2 is needed, and the installation efficiency is improved.
Specifically, as shown in fig. 1 and 2, the protective shell 2 includes two first plates 21 arranged oppositely and a second plate 22 connecting the two first plates 21 and forming a U-shaped cavity, a first claw 211 is arranged on a side surface of each first plate 21 facing the other first plate 21, and the pin body 1 is limited between a bottom wall of the U-shaped cavity and the first claw 211. More specifically, the first plate 21, the second plate 22, and the first claws 211 are integrally provided.
Specifically, as shown in fig. 1 and fig. 2, the pin body 1 includes a connecting portion 11 and a clamping portion 12, and the connecting portion 11 is provided with a through hole for a pole to pass through; one end of the clamping portion 12 is connected to the pin body 1 of the connecting portion 11, which forms an L-shaped structure, and the other end is provided with a protective shell 2. Joint portion 12 sets up perpendicularly in the one end of connecting portion 11, and joint portion 12 includes the lower connecting plate 122 of two relative mounting panels 121 of setting and two mounting panels 121 of connection, and joint portion 12 can stretch into the inner wall of the casing of battery, welds the utmost point ear of electric core on the mounting panel 121 of joint portion 12, and the joint is provided with protective housing 2 on connecting plate 122 down, prevents the inner wall contact of the casing of pin body 1 and battery. More specifically, the connecting portion 11 and the clamping portion 12 are integrally formed, and the pin body 1 is manufactured by a punch forming process.
Further, as shown in fig. 1 and 3, the battery pin further includes a heat insulation shell 3, the heat insulation shell 3 is connected to the pin body 1, and the heat insulation shell 3 is used for preventing heat generated by the pin body 1 from being transferred to the cell insulation film. Pin body 1 produces a large amount of heats easily when overflowing, burns out electric core insulating film easily, sets up thermal-insulated shell 3 on pin body 1, avoids the heat transfer of pin body 1 production to electric core insulating film, has solved the too big problem of burning out electric core insulating film of heat.
Specifically, as shown in fig. 1 and 3, the heat insulating case 3 is snap-fitted to the pin body 1. The clamping portion 12 of the pin body 1 further comprises an upper connecting plate 123 connecting the two mounting plates 121, the upper connecting plate 123 and the lower connecting plate 122 are arranged at intervals, the upper connecting plate 123 is located above the lower connecting plate 122 (above indicated in fig. 1), the heat insulation shell 3 is clamped on the upper connecting plate 123, and detachable connection of the heat insulation shell 3 and the upper connecting plate 123 is achieved.
More specifically, as shown in fig. 1 and 3, the heat insulating case 3 has a rectangular parallelepiped structure, a second claw 31 is provided on a side surface thereof close to the upper connecting plate 123 in a left-right direction (left-right direction shown in fig. 3) of the heat insulating case 3, the second claw 31 can be engaged with the upper connecting plate 123, a third claw 32 is provided in a vertical direction (vertical direction shown in fig. 3) of the heat insulating case 3, and the third claw 32 can be engaged with the upper connecting plate 123 to prevent the heat insulating case 3 from slipping off. In the present embodiment, the heat insulating shell 3, the second jaw 31 and the third jaw 32 are integrally formed. In other embodiments, the insulating shell 3 may be glued to the upper connecting plate 123. Alternatively, in other embodiments, the heat insulating shell 3 may be connected to the upper connecting plate 123 by bolts or pins.
The embodiment also provides a battery cover plate, which comprises two pins with different polarities, wherein at least one pin is the battery pin. Specifically, as shown in fig. 4, the battery cover plate provided in this embodiment includes a positive electrode pin 601 and a negative electrode pin 602, where the positive electrode pin 601 and the negative electrode pin 602 are both the same as the battery pin structure described above, and the polarities of the positive electrode pin 601 and the negative electrode pin 602 are different. The battery cover plate provided by the embodiment separates the positive pin 601 from the inner wall of the battery shell and separates the negative pin 602 from the inner wall of the battery shell, so that the problem of short circuit inside the battery cell caused by the contact between the positive pin 601 or the negative pin 602 and the battery shell is solved.
Further, as shown in fig. 4, the battery cover plate further includes a cover plate body 100, a terminal post and an upper plastic 200, and the pin is disposed on one side of the cover plate body 100; the polar columns correspond to the pins one to one, one end of each polar column is connected to the corresponding pin, and the other end of each polar column penetrates through the cover plate body 100; the upper plastic 200 is disposed on a side of the cover plate body 100 opposite to the pins, and the posts penetrate through the upper plastic 200.
Specifically, the battery cover plate includes a positive electrode post 501 and a negative electrode post 502, the positive electrode pin 601 and the negative electrode pin 602 are disposed on the same side of the cover plate body 100, the positive electrode pin 601 extends into the casing of the battery and is connected with a positive electrode tab of the battery core, and the negative electrode pin 602 can extend into the casing of the battery and is connected with a negative electrode tab of the battery core. The positive electrode post 501 passes through the positive electrode pin 601 and the cap body 100 and is connected to a positive electrode of an external device, and the negative electrode post 502 passes through the negative electrode pin 602 and the cap body 100 and is connected to a negative electrode of the external device, thereby supplying power to the external device. The protective shell 2 separates the positive pin 601 from the inner wall of the battery shell, and the negative pin 602 from the inner wall of the battery shell, so that the problem of short circuit inside the battery cell caused by the contact of the positive pin 601 or the negative pin 602 with the battery shell is solved.
Specifically, as shown in fig. 1 and 4, the battery cover plate further includes a lead film 700, and after the positive electrode post 501 passes through the positive electrode lead 601, the lead film 700 is adhered to a side of the connection portion 11 of the positive electrode lead 601, which is away from the cover plate body 100, so as to prevent welding slag generated by subsequently welding the positive electrode post 501 from falling into the battery core. More specifically, the negative lead 602 is also attached with a lead film 700.
Specifically, as shown in fig. 4, the upper plastic 200 is disposed on a side of the cover plate body 100 away from the positive pin 601 and the negative pin 602. In this embodiment, the number of the upper plastic 200 is two, two first limiting grooves 101 are formed on the cover plate body 100, the two upper plastics 200 are correspondingly disposed in the two first limiting grooves 101 one by one, the anode terminal 501 penetrates one upper plastic 200, and the cathode terminal 502 penetrates the other upper plastic 200. The cover plate body 100 is provided with the upper plastic 200, and the upper plastic 200 can conduct electricity, so that the on-resistance between the cover plate body 100 and the positive electrode pole 501 and the negative electrode pole 502 is increased.
Specifically, as shown in fig. 4, the battery cover plate further includes two connecting blocks 800, the two connecting blocks 800 are disposed on one side of the upper plastic 200 away from the cover plate body 100, in this embodiment, the two connecting blocks 800 are disposed, the two upper plastic 200 are both provided with the second limiting grooves 201, and the one-to-one correspondence of the two connecting blocks 800 is disposed in the two second limiting grooves 201 respectively.
Specifically, as shown in fig. 4, the battery cover plate further includes a lower plastic 300, the lower plastic 300 is sandwiched between the cover plate body 100 and the pins, and the posts penetrate through the lower plastic 300. The lower plastic 300 is disposed to separate the positive lead 601 and the negative lead 602 from the lid body 100. The positive electrode post 501 sequentially penetrates through the positive electrode pin 601, the lower plastic 300, the cover plate body 100 and one upper plastic 200 and is connected to one connecting block 800, and the negative electrode post 502 sequentially penetrates through the negative electrode pin 602, the lower plastic 300, the cover plate body 100 and the other upper plastic 200 and is connected to the other connecting block 800. Specifically, the positive electrode terminal 501 and the negative electrode terminal 502 are both riveted to the connection block 800.
Specifically, as shown in fig. 4, the battery cover plate further includes a sealing member 900, the lower plastic 300 is provided with two mounting holes corresponding to the positive electrode post 501 and the negative electrode post 502, the positive electrode post 501 and the negative electrode post 502 are respectively inserted into the two mounting holes, and the sealing member 900 is used for sealing a gap between the inner wall of the mounting hole and the positive electrode post 501 and a gap between the inner wall of the mounting hole and the negative electrode post 502. Preferably, the sealing member 900 is a sealing rubber ring, and the number of the sealing rubber rings is two, one of the sealing rubber rings is sleeved on the positive electrode post 501 and is clamped between the lower plastic 300 and the positive electrode post 501, and the other sealing rubber ring is sleeved on the negative electrode post 502 and is clamped between the lower plastic 300 and the negative electrode post 502.
Specifically, as shown in fig. 4, the battery cover plate further includes an explosion-proof sheet 400, an explosion-proof hole 102 is formed in the cover plate body 100, and the explosion-proof sheet 400 is disposed in the explosion-proof hole 102. An explosion-proof sheet attachment film 401 is attached to the explosion-proof sheet 400. Set up explosion-proof piece 400 on the apron body 100, explosion-proof piece 400 adopts annular indentation or a plurality of arc indentation, and when the battery is inside to take place unusually, the inside gaseous pressure of battery when surpassing explosion-proof stress default of explosion-proof piece 400, can follow the indentation department of explosion-proof piece 400 earlier and split to release the inside gas of battery, prevent the explosion of power battery, reduce power battery's potential safety hazard.
In the description of the present embodiments, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In this embodiment, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a battery pin for with the electric connection of battery electricity core in the utmost point post of battery, its characterized in that, battery pin includes pin body (1), and connect in protective housing (2) of pin body (1), protective housing (2) are made by insulating material, protective housing (2) are used for separating pin body (1) with the casing of battery.
2. The battery pin according to claim 1, characterized in that the protective shell (2) and the pin body (1) are snap-fitted.
3. The battery pin according to claim 2, characterized in that the protective shell (2) comprises two oppositely arranged first plates (21) and a second plate (22) connecting the two first plates (21) and forming a U-shaped cavity, a first claw (211) is arranged on the side of each first plate (21) facing the other first plate (21), and the pin body (1) is limited between the bottom wall of the U-shaped cavity and the first claw (211).
4. The battery pin according to claim 1, characterized in that the pin body (1) comprises:
the connecting part (11) is provided with a penetrating hole for penetrating the pole;
joint portion (12), the one end of joint portion (12) connect in connecting portion (11) are in order to form the L shape structure pin body (1), the other end is equipped with protective housing (2).
5. The battery pin according to claim 1, further comprising a heat insulation shell (3), wherein the heat insulation shell (3) is connected to the pin body (1), and the heat insulation shell (3) is used for preventing heat generated by the pin body (1) from being transferred to a cell insulation film.
6. The battery pin according to claim 5, characterized in that the heat insulating shell (3) is snap-fitted to the pin body (1).
7. A battery cover plate comprising two pins of different polarities, at least one of the pins being a battery pin according to any one of claims 1 to 6.
8. The battery cover plate according to claim 7, further comprising:
the cover plate body (100), the pin is arranged on one side of the cover plate body (100);
the polar columns correspond to the pins one to one, one ends of the polar columns are connected to the corresponding pins, and the other ends of the polar columns penetrate through the cover plate body (100);
go up plastic (200), go up plastic (200) set up in apron body (100) back to on the side of pin, utmost point post runs through go up plastic (200).
9. The battery cover plate according to claim 8, further comprising a lower plastic (300), wherein the lower plastic (300) is sandwiched between the cover plate body (100) and the pins, and the posts penetrate through the lower plastic (300).
10. The battery cover plate according to claim 8, further comprising an explosion-proof sheet (400), wherein the cover plate body (100) is provided with an explosion-proof hole (102), and the explosion-proof sheet (400) is disposed in the explosion-proof hole (102).
CN202123398918.0U 2021-12-30 2021-12-30 Battery pin and battery cover plate Active CN216850246U (en)

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DE202022104222.5U DE202022104222U1 (en) 2021-12-30 2022-07-26 battery pin connector and battery cover plate
FR2208193A FR3131661B3 (en) 2021-12-30 2022-08-09 Pin Battery Connector and Battery Cover Plate
PCT/CN2022/112454 WO2023124106A1 (en) 2021-12-30 2022-08-15 Battery pin and battery cover plate
HUU2200114U HU5578U (en) 2021-12-30 2022-08-17 Battery cover plate

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WO2023124106A1 (en) * 2021-12-30 2023-07-06 深圳市科达利实业股份有限公司 Battery pin and battery cover plate

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FR3131661B3 (en) 2024-02-02
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HU5578U (en) 2023-03-28
DE202022104222U1 (en) 2022-10-28

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