CN222851631U - Spot welding-free battery and battery pack - Google Patents
Spot welding-free battery and battery pack Download PDFInfo
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- CN222851631U CN222851631U CN202421730192.7U CN202421730192U CN222851631U CN 222851631 U CN222851631 U CN 222851631U CN 202421730192 U CN202421730192 U CN 202421730192U CN 222851631 U CN222851631 U CN 222851631U
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- battery cell
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- protection plate
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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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- Battery Mounting, Suspending (AREA)
Abstract
本实用新型属于电池技术领域，公开了一种免点焊电池及电池组，包括电芯、保护板和支架，电芯一端设置有正极和负极；保护板朝向电芯的一侧对应正极和负极的位置分别连接有两个连接件，用于使保护板与电芯通过连接件可选择地电性连接；支架与电芯设置正极和负极的一端连接，两个连接件均穿过支架并与支架可拆卸连接，用于限制保护板与电芯的相对位置。如此，保护板与电芯通过连接件连接，能够在节约点焊步骤时保持保护板与电芯的稳定连接，避免因点焊时产生虚焊而影响连接效果，且能够实现快速装配，提高连接效率。
The utility model belongs to the technical field of batteries, and discloses a spot welding-free battery and battery pack, including a battery cell, a protection plate and a bracket, wherein a positive electrode and a negative electrode are arranged at one end of the battery cell; two connectors are respectively connected to the positions corresponding to the positive electrode and the negative electrode on the side of the protection plate facing the battery cell, which are used to selectively electrically connect the protection plate and the battery cell through the connectors; the bracket is connected to one end of the battery cell where the positive electrode and the negative electrode are arranged, and both connectors pass through the bracket and are detachably connected to the bracket, which are used to limit the relative position of the protection plate and the battery cell. In this way, the protection plate and the battery cell are connected through the connector, which can maintain a stable connection between the protection plate and the battery cell while saving the spot welding steps, avoiding the connection effect affected by the cold welding during the spot welding, and can realize rapid assembly and improve the connection efficiency.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a spot-welding-free battery and a battery pack.
Background
The battery is a device capable of converting chemical energy into electric energy, and a plurality of batteries are connected to form a battery pack to increase the capacity and the voltage so as to adapt to electric appliances with different requirements.
In the manufacturing process of the lithium battery, it is generally required to connect the semi-finished battery pack and the protection plate by welding (e.g., spot welding), and use a nickel strap as a welding medium between the semi-finished battery pack and the protection plate to form an electrical connection between the semi-finished battery pack and the protection plate.
However, the spot welding may be at risk due to irregular operation of personnel, poor quality of welding materials, etc., and the equipment cost and labor cost are high, so that the semi-finished battery pack connected by the spot welding process has the problems of poor connection effect and low connection efficiency with the protection plate.
Disclosure of utility model
The utility model aims to provide a spot-welding-free battery and a battery pack, which are used for solving the problems of poor connection effect and low connection efficiency of a semi-finished battery pack and a protection plate which are connected through a spot welding process.
To achieve the purpose, the utility model adopts the following technical scheme:
A spot welding-free battery comprises a battery core, a protection plate and a support, wherein an anode and a cathode are arranged at one end of the battery core, two connecting pieces are respectively connected to the position, corresponding to the anode and the cathode, of one side of the protection plate facing the battery core, and are used for enabling the protection plate to be selectively and electrically connected with the battery core through the connecting pieces, the support is connected with one end, provided with the anode and the cathode, of the battery core, and the two connecting pieces penetrate through the support and are detachably connected with the support and are used for limiting the relative positions of the protection plate and the battery core.
Preferably, the positions of the support corresponding to the positive electrode and the negative electrode are respectively provided with a positioning hole, and the connecting piece penetrates through the positioning holes to be selectively connected with the battery cell.
Preferably, a placement groove with a shape matched with the protection plate is formed in one end, away from the battery cell, of the support, and the placement groove is used for placing the protection plate.
Preferably, the connecting piece is a reed, one end of the reed is fixedly connected with one end of the protection plate, which faces the battery cell, and the other end of the reed is selectively abutted with the positive electrode or the negative electrode of the battery cell.
Preferably, the spot-free welding battery further comprises a limiting shell, wherein the limiting shell is sleeved on the protecting plate and the support and used for limiting the relative positions of the protecting plate and the support.
Preferably, the limiting shell covers at least part of the side wall of the battery cell and is used for limiting the relative positions of the bracket and the battery cell.
Preferably, the spot-free welding battery further comprises a connecting pipe, wherein the connecting pipe is sleeved outside the battery core, the protecting plate and the bracket, and the length of the connecting pipe is larger than that of the limiting shell.
Preferably, the limit housing is made of a steel material, and/or the connecting tube is made of a plastic material.
Preferably, an insulating sheet is connected to one end of the battery cell facing away from the protection plate.
Preferably, a battery pack comprises a plurality of spot-free batteries as described above.
The utility model has the beneficial effects that:
The spot welding-free battery comprises a battery core, a protection plate and a support, wherein an anode and a cathode are arranged at one end of the battery core, two connecting pieces are respectively connected to the position, corresponding to the anode and the cathode, of one side of the protection plate, facing the battery core, and are used for enabling the protection plate to be selectively and electrically connected with the battery core through the connecting pieces, the support is connected with one end, provided with the anode and the cathode, of the battery core, and the two connecting pieces penetrate through the support and are detachably connected with the support and are used for limiting the relative positions of the protection plate and the battery core.
Therefore, the protective plate and the positive electrode and the negative electrode of the battery cell are connected through the connecting piece, so that quick assembly can be realized, stable connection of the battery cell and the protective plate can be kept, spot welding steps are saved, the risk of cold welding is avoided, the connecting piece penetrates through the support and is detachably connected with the support, the support can limit the position of the connecting piece, the connecting piece is prevented from deviating and separating from connection with the positive electrode or the negative electrode, the connection effect of the battery cell and the protective plate is improved, and the connection efficiency is improved.
Drawings
Fig. 1 is an exploded view of a spot-free battery according to an embodiment of the present utility model;
fig. 2 is a partial structural view for showing a protection plate and a connection member according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a part of a limiting shell according to an embodiment of the present utility model;
fig. 4 is a schematic view showing the structure of a spot-free battery according to an embodiment of the present utility model.
In the figure:
1. 11 parts of battery core, 12 parts of positive electrode, 12 parts of negative electrode, 13 parts of insulating sheet, 2 parts of protective plate, 21 parts of connecting piece, 3 parts of bracket, 31 parts of positioning hole, 32 parts of placing groove, 4 parts of limiting shell, 5 parts of connecting pipe.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Referring to fig. 1 and 2, the utility model provides a spot-welding-free battery, which comprises a battery cell 1, a protection plate 2 and a support 3, wherein one end of the battery cell 1 is provided with a positive electrode 11 and a negative electrode 12, two connecting pieces 21 are respectively connected with one side of the protection plate 2 facing the battery cell 1, corresponding to the positions of the positive electrode 11 and the negative electrode 12, and are used for enabling the protection plate 2 to be selectively and electrically connected with the battery cell 1 through the connecting pieces 21, the support 3 is connected with one end of the battery cell 1, provided with the positive electrode 11 and the negative electrode 12, and the two connecting pieces 21 penetrate through the support 3 and are detachably connected with the support 3, so that the relative positions of the protection plate 2 and the battery cell 1 are limited.
In this embodiment, the positive electrode 11 and the battery cell 1 are coaxially arranged, the negative electrode 12 is in an annular structure, the negative electrode 12 and the positive electrode 11 are concentric, the two connecting pieces 21 are made of conductive materials, when the connecting pieces 21 are abutted to the positive electrode 11 or the negative electrode 12, the bracket 3, the protection plate 2 and the battery cell 1 are coaxially arranged, one connecting piece 21 and the protection plate 2 are coaxially arranged, and the other connecting piece 21 is arranged at a position of the protection plate 2 corresponding to the negative electrode 12.
The connecting piece 21 is inserted through the bracket 3, so that the protection board 2 is connected with the bracket 3, and the bracket 3 is connected with one end of the battery cell 1, where the positive electrode 11 and the negative electrode 12 are arranged, so that the two connecting pieces 21 are respectively abutted with the positive electrode 11 and the negative electrode 12, and the electric connection between the protection board 2 and the battery cell 1 is realized.
In this way, the protective plate 2 is connected with the battery cell 1 through the connecting piece 21, the spot welding step can be saved, the connecting piece 21 made of conductive materials is abutted with the battery cell 1, so that the current of the battery cell 1 can be stably transmitted to the protective plate 2 through the connecting piece 21, the risk of false welding is avoided, the connection effect of the battery cell 1 and the protective plate 2 is enhanced, the quick assembly can be realized, the connection efficiency is improved, and the bracket 3 is assembled on the battery cell 1 due to the annular structure of the negative electrode 12, one connecting piece 21 is abutted with the positive electrode 11, the other connecting piece 21 is abutted with the negative electrode 12, the positioning time can be saved, and the connection efficiency is improved.
Referring to fig. 1, in some embodiments, positioning holes 31 are formed in positions of the support 3 corresponding to the positive electrode 11 and the negative electrode 12, respectively, and the connecting member 21 passes through the positioning holes 31 to be selectively connected with the battery cell 1. Wherein the cross-sectional area of the positioning hole 31 is adapted to the cross-sectional area of the connecting piece 21.
So, connecting piece 21 passes locating hole 31, not only can realize the butt with electric core 1, makes electric core 1 and protection shield 2 quick connect, saves the spot welding step, improves the connection effect, can also make connecting piece 21 and support 3 peg graft, restricts the relative position of connecting piece 21 and support 3, avoids connecting piece 21 to take place the skew and influences the connection effect of connecting piece 21 and electric core 1.
Referring to fig. 1, in some embodiments, a placement groove 32 with a shape adapted to the protection plate 2 is formed at an end of the support 3 facing away from the battery cell 1, for placing the protection plate 2. Wherein, the positioning holes 31 are correspondingly arranged in two, and the two positioning holes 31 are all arranged at the bottom of the placing groove 32.
Like this, protection shield 2 place in standing groove 32 and with support 3 joint, can be convenient for the staff install protection shield 2 to support 3 fast on, improve connection efficiency, and protection shield 2 installs difficult drop or skew on support 3, make protection shield 2 be connected with electric core 1 steadily, improve the connection effect of electric core 1 and protection shield 2.
It can be understood that the placing groove 32 may also be provided with an elastic buckle, so that the elastic buckle can limit the position of the protecting plate 2 when the protecting plate 2 is placed in the placing groove 32, which is not described herein, the depth of the placing groove 32 can be adjusted according to the actual requirement, and the depth of the placing groove 32 can be equal to the thickness of the protecting plate 2, or can be greater than or less than the thickness of the protecting plate 2.
Referring to fig. 1 and 2, in some embodiments, the connecting piece 21 is a reed, one end of the reed is fixedly connected with the protection plate 2 toward the battery cell 1, and the other end is selectively abutted with the positive electrode 11 or the negative electrode 12 of the battery cell 1. The reed is welded on one side of the protection plate 2 facing the battery cell 1, and the length direction of the reed is parallel to the length direction of the battery cell 1.
So, pass the locating hole 31 with the reed, can make protection shield 2 and support 3 quick connect, improve connection efficiency, restriction protection shield 2 and support 3's relative position simultaneously, assemble support 3 to behind the one end that electric core 1 set up anodal 11 and negative pole 12, two reeds deviate from the one end of protection shield 2 can be continuously with anodal 11 and negative pole 12 butt respectively, realize the stable butt of protection shield 2 and electric core 1, improve connection efficiency.
It can be understood that, because the negative electrode 12 is annular, an annular hole can be formed at a position of the support 3 corresponding to the negative electrode 12, and in this embodiment, the cross section shape of the positioning hole 31 is adapted to the longitudinal section shape of the reed, so that the relative positions of the protection plate 2 and the support 3 are fixed when the reed is inserted into the positioning hole 31, and the connection effect of the battery cell 1 and the protection plate 2 is improved.
Further, the connecting member 21 may be made of other elastic materials, such as an elastic sheet, and the connecting member 21 may be a rigid member, such as a connecting post made of conductive material, and the reed is adopted in this embodiment to enable the connecting member 21 to continuously abut against the battery cell 1 when the bracket 3 is assembled on the battery cell 1, and the structure of the connecting member 21 may be flexibly adjusted according to actual needs, which is not repeated herein.
Referring to fig. 1 and 3, in some embodiments, the spot-free welding battery further includes a limiting case 4, where the limiting case 4 is sleeved on the protection plate 2 and the support 3, for limiting the relative positions of the protection plate 2 and the support 3. Further, the limiting shell 4 is made of steel materials, the limiting shell 4 covers at least part of the side wall of the battery cell 1 and is used for limiting the relative positions of the support 3 and the battery cell 1, and the limiting shell 4 is pressed on the outer walls of the protection plate 2, the support 3 and the battery cell 1.
So, assemble protection shield 2 to support 3 on to be connected support 3 and electric core 1, make connecting piece 21 and electric core 1 butt, and establish spacing shell 4 cover in support 3 and electric core 1 outside, be convenient for assemble support 3 to electric core 1 fast on, also can protect support 3 and protection shield 2, avoid receiving external colliding with, strengthen electric core 1 and protection shield 2's connection effect.
It can be appreciated that when the depth of the placing groove 32 is smaller than the height of the protecting plate 2, the protecting plate 2 protrudes out of the support 3, the limiting shell 4 is connected with the protecting plate 2 and the support 3, when the depth of the placing groove 32 is equal to the height of the protecting plate 2, one side of the protecting plate 2 deviating from the battery cell 1 is flush with one side of the support 3 deviating from the battery cell 1, the limiting shell 4 is only connected with the support 3, and the depth of the placing groove 32 can be flexibly adjusted according to actual production conditions.
Referring to fig. 1-4, in some embodiments, the spot-free battery further includes a connection tube 5, the connection tube 5 is sleeved outside the battery core 1, the protection plate 2 and the support 3, and the length of the connection tube 5 is greater than the length of the limiting shell 4. In this embodiment, the connection tube 5 is sleeved on the battery cell 1 and covers the side wall of the battery cell 1.
After the bracket 3 is assembled on the battery core 1, the limiting tube is sleeved, the limiting tube is pressed with the bracket 3, and then the connecting tube 5 is sleeved on the battery core 1, so that the assembly of the spot-welding-free battery is realized.
In this way, the connecting pipe 5 can fix the relative positions of the assembled battery cell 1, the bracket 3 and the protection plate 2, prevent the bracket 3 and the protection plate 2 from falling off or shifting, enable the connecting piece 21 to be continuously abutted against the positive electrode 11 or the negative electrode 12 of the battery cell 1, and improve the connection effect of the battery cell 1 and the protection plate 2.
Referring to fig. 4, in some embodiments, the connection tube 5 is made of a plastic material, and further, the connection tube 5 is made of a PVC (Polyvinyl Chloride ) material.
It will be appreciated that the material of the limiting shell 4 and the material of the connecting tube 5 may be adjusted according to actual needs, and will not be described herein.
Referring to fig. 1, in some embodiments, an insulating sheet 13 is connected to an end of the battery cell 1 facing away from the protection plate 2. Wherein, insulating sheet 13 is in contact with cell 1 and is disposed inside connecting tube 5.
Therefore, one end of the battery cell 1 deviating from the bracket 3 can be prevented from contacting with the outside and generating the risk of leakage, and the safety performance of the spot-welding-free battery is improved.
Referring to fig. 1, the present utility model further provides a battery pack including a plurality of spot-free batteries, and further, each spot-free battery includes a battery cell 1 and a protection plate 2.
It can be understood that one cell 1 can be correspondingly connected with one bracket 3, and a plurality of positioning holes 31 can be formed on one bracket 3, so that a plurality of groups of protection plates 2 can be connected with the cell 1 through the positioning holes 31, and details are omitted here.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A spot-free battery, comprising:
the battery cell (1), one end of the battery cell (1) is provided with a positive electrode (11) and a negative electrode (12);
The battery cell comprises a battery cell (1), a protective plate (2), a positive electrode (11) and a negative electrode (12), wherein the position, facing the battery cell (1), of the protective plate (2) is respectively connected with two connecting pieces (21) for enabling the protective plate (2) to be selectively and electrically connected with the battery cell (1) through the connecting pieces (21);
The support (3), support (3) with electric core (1) set up anodal (11) with the one end of negative pole (12) is connected, two connecting piece (21) all pass support (3) and with support (3) detachable connection is used for the restriction protection shield (2) with the relative position of electric core (1).
2. Spot-free battery according to claim 1, characterized in that the positions of the support (3) corresponding to the positive electrode (11) and the negative electrode (12) are respectively provided with a positioning hole (31), and the connecting piece (21) passes through the positioning holes (31) to be selectively connected with the electric core (1).
3. Spot-free battery according to claim 1, characterized in that the end of the holder (3) facing away from the electrical core (1) is provided with a placement groove (32) shaped to the protection plate (2) for placing the protection plate (2).
4. Spot-free battery according to claim 1, characterized in that the connecting piece (21) is a reed, one end of which is fixedly connected with one end of the protection plate (2) facing the battery cell (1), and the other end of which is selectively abutted with the positive electrode (11) or the negative electrode (12) of the battery cell (1).
5. Spot-free battery according to any one of claims 1-4, characterized in that the spot-free battery further comprises a limiting shell (4), the limiting shell (4) being arranged over the protection plate (2) and the holder (3) for limiting the relative position of the protection plate (2) and the holder (3).
6. Spot-free battery according to claim 5, characterized in that the limit housing (4) covers at least part of the side walls of the cell (1) for limiting the relative position of the holder (3) and the cell (1).
7. The spot-free battery according to claim 5, further comprising a connecting tube (5), wherein the connecting tube (5) is sleeved outside the battery cell (1), the protection plate (2) and the bracket (3), and the length of the connecting tube (5) is greater than the length of the limiting shell (4).
8. Spot-free battery according to claim 7, characterized in that the limiting shell (4) is made of a steel material and/or the connecting tube (5) is made of a plastic material.
9. Spot-free battery according to any one of claims 1-4, characterized in that an insulating sheet (13) is connected to the end of the cell (1) facing away from the protective plate (2).
10. A battery comprising a plurality of spot-free cells as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421730192.7U CN222851631U (en) | 2024-07-22 | 2024-07-22 | Spot welding-free battery and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421730192.7U CN222851631U (en) | 2024-07-22 | 2024-07-22 | Spot welding-free battery and battery pack |
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| Publication Number | Publication Date |
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| CN222851631U true CN222851631U (en) | 2025-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202421730192.7U Active CN222851631U (en) | 2024-07-22 | 2024-07-22 | Spot welding-free battery and battery pack |
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| CN (1) | CN222851631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120895808A (en) * | 2025-09-30 | 2025-11-04 | 深圳市豪鹏科技股份有限公司 | Button batteries and electronic devices |
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2024
- 2024-07-22 CN CN202421730192.7U patent/CN222851631U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120895808A (en) * | 2025-09-30 | 2025-11-04 | 深圳市豪鹏科技股份有限公司 | Button batteries and electronic devices |
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