CN115966846A - Battery module and consumer - Google Patents
Battery module and consumer Download PDFInfo
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- CN115966846A CN115966846A CN202211718679.9A CN202211718679A CN115966846A CN 115966846 A CN115966846 A CN 115966846A CN 202211718679 A CN202211718679 A CN 202211718679A CN 115966846 A CN115966846 A CN 115966846A
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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 application provides a battery module and electric equipment, wherein the battery module comprises a plurality of electric cores connected in series and a connecting sheet used for electrically connecting the electric cores; at least one of the connecting sheets is set to be a fusing type connecting sheet, the fusing type connecting sheet comprises two contact parts and a fusing part, and the two contact parts are electrically connected through the fusing part; between two battery cells, one of the two contact portions is electrically connected to one battery cell, and the other of the two contact portions is electrically connected to the other battery cell. This application can be solved the battery module and easily damage when the circuit short circuit, influences the problem of battery module normal use.
Description
Technical Field
The application relates to the field of energy storage devices, in particular to a battery module and electric equipment.
Background
The battery module is an important energy storage device and comprises a plurality of battery cells connected in series so as to improve the output voltage of the battery module through the plurality of battery cells. However, when the battery module is connected to the circuit to provide power to the electrical equipment in the circuit, the battery module is easily damaged when the circuit is short-circuited, which affects the normal use of the battery module.
Disclosure of Invention
The embodiment of the application provides a battery module and consumer for solve the battery module and easily damage when the circuit short circuit, influence the problem of battery module normal use.
The battery module and the electric equipment provided by the embodiment of the application comprise a plurality of battery cores connected in series and connecting sheets used for electrically connecting the battery cores;
at least one of the connecting pieces is set to be a fusing type connecting piece, the fusing type connecting piece comprises two contact parts and a fusing part, and the two contact parts are electrically connected through the fusing part; between the two battery cells, one of the two contact portions is electrically connected to one of the battery cells, and the other of the two contact portions is electrically connected to the other of the battery cells.
By adopting the technical scheme, when the battery module is connected to the circuit to provide electric energy for electric appliances in the circuit, the connecting sheet is used for electrically connecting the battery cores so as to connect the battery cores in series through the connecting sheet; and, through setting up at least one of connection piece into fusing type connection piece, when the circumstances such as short circuit appear in the circuit and make circuit medium current too big, the fusing portion temperature that sets up between two contact sites risees and fuses to make two contact sites separation, make the circuit be the state of opening circuit, reduce the possibility that battery module damaged when the circuit short circuit, guaranteed battery module's normal use.
In some possible embodiments, the fuse-type connection pad is made of aluminum, and the fuse has a resistance greater than that of the contact.
In some possible embodiments, in the same fuse-type connecting tab, two of the contact portions are arranged in a first direction, and the fuse portion is provided as a circular arc-shaped fuse portion that protrudes with respect to the first direction.
In some possible embodiments, the arc-shaped fusing part has a cross-sectional area smaller than that of the contact part in a cross-section taken on a plane perpendicular to the first direction.
In some possible embodiments, the arc-shaped fusing part is provided with at least one opening.
In some possible embodiments, the opening is provided as a square opening, and the square opening is provided in the middle of the arc-shaped fusing part in the first direction.
In some possible embodiments, the cell has a pole; the contact part is provided with a welding port, and the contact part is welded and fixed on the pole through the welding port;
the contact site is provided with the constant head tank, the constant head tank communicate in the welding mouth, the constant head tank correspond set up in utmost point post.
In some possible embodiments, the contact portion is detachably disposed on the battery cell, and when the contact portion is fixed to the battery cell, the contact portion is electrically connected to the battery cell.
In some possible embodiments, the contact part is provided with a detection piece, and the detection piece is electrically connected with the contact part so as to acquire a target parameter of the battery cell through the detection piece; the target parameters include a voltage of the cell and a temperature of the cell.
The embodiment of the application also provides electric equipment, which comprises the battery module.
By adopting the technical scheme, in the electric equipment, when the battery module is connected to the circuit to provide electric energy for the electric equipment in the circuit, the connecting sheet is used for electrically connecting the battery cores so as to connect the plurality of battery cores in series through the connecting sheet; and, through setting up at least one of connection piece into fusing type connection piece, when the condition such as short circuit appears in the circuit and makes circuit medium current too big, the fusing temperature that sets up between two contact sites risees and fuses to make two contact site separation, make the circuit be the state of opening circuit, reduce the possibility that battery module damaged when the circuit short circuit, guaranteed battery module's normal use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a stabilized tab provided in accordance with an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a fuse type connection tab according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a fuse link with an opening according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a fuse link of another embodiment having an opening according to an example of the present application.
Description of the reference numerals:
100. an electric core;
110. a pole column; 120. an output end;
200. a fuse type connecting sheet;
210. a contact portion; 211. a detection member; 212. welding a port; 213. positioning a groove; 220. a fusing portion; 221. an opening;
300. stable form connection piece.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
As described in the background art, when the battery module is connected to the circuit to provide power to the electrical equipment in the circuit, the circuit may be short-circuited, so that the current flowing through the battery module connected to the circuit is large, and the battery module is easily damaged, thereby affecting the normal use of the battery module. And, common battery module includes a plurality of electric cores usually, a plurality of electric core series connection to improve battery module's supply voltage, when the short circuit appears between the electric core in the battery module, then the damage phenomenon easily appears in the electric core in the battery module, influences battery module's normal use, and influences the security that battery module used.
In order to solve the technical problem, an embodiment of the present application provides a battery module and an electric device, where the battery module includes a plurality of electric cores connected in series, and a connecting sheet for electrically connecting the electric cores; and, at least one of connection piece sets up to fusing type connection piece, fusing type connection piece is including two contact sites and the fusing portion of electricity connection, the condition such as short circuit appears in the circuit makes the electric current of flowing through the battery module when too big, perhaps, when the short circuit appears between the electric core in the battery module, fusing portion temperature risees and fuses, thereby make two contact site separation, make the circuit be the state of opening circuit, reduce the possibility that the battery module damaged when the circuit short circuit, the normal use of battery module has been guaranteed.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, an embodiment of the present application provides a battery module, including a plurality of battery cells 100 connected in series, and a connecting sheet for electrically connecting the battery cells 100; at least one of the connection pieces is provided as a fusing type connection piece 200, the fusing type connection piece 200 includes two contact portions 210 and a fusing portion 220, and the two contact portions 210 are electrically connected through the fusing portion 220; between the two battery cells 100, one of the two contact portions 210 is electrically connected to one battery cell 100, and the other of the two contact portions 210 is electrically connected to the other battery cell 100, so that the two battery cells 100 are electrically connected by the fuse-type connecting tab 200.
In some possible embodiments, the number of the battery cells 100 may be adjusted according to an actual situation, for example, the number of the battery cells 100 is set to be 10, and the 10 battery cells 100 are arranged in two rows and five columns, where the row direction of the battery cells 100 is perpendicular to the column direction of the battery cells 100.
Referring to fig. 1, each battery cell 100 extends along the row direction of the battery cell 100, and each battery cell 100 includes two terminals 110, one of the terminals 110 is configured as an anode terminal, the other terminal 110 is configured as a cathode terminal, and in the same battery cell 100, the anode terminal and the cathode terminal are arranged along the row direction of the battery cell 100. In the same electric core 100 that is listed as, the opposite direction setting of the utmost point post 110 of two adjacent electric cores 100, and the anodal utmost point post of every electric core 100 passes through the negative pole post of a connection piece electricity connection electric core 100, and the anodal utmost point post of every electric core 100 passes through the connection piece electricity connection another electric core 100 to establish ties the setting with the electric core 100 who is listed as through a plurality of connection pieces.
Exemplarily, two are connected through a connection piece electricity between electric core 100 to make a plurality of electric core 100 can the series connection, and in the row direction of electric core 100, set up and all be connected with output 120 in the one line electric core 100 of tip, the anodal output is connected to one of them anodal utmost point post electricity of electric core 100, the negative output is connected to the negative pole utmost point post electricity of another electric core 100, so that a plurality of electric core 100 can provide the electric energy through anodal output and negative output.
It is easy to understand that both the output voltage of the battery cells 100 and the arrangement manner of the battery cells 100 may be adjusted according to actual conditions, for example, when the output voltage of the battery module is 20V and the output voltage of each battery cell 100 is 2V, the number of the battery cells 100 may be set to 10; when the output voltage of the battery module is 30V and the output voltage of each battery cell 100 is 1.5V, the number of the battery cells 100 may be set to 20. Moreover, when the number of the battery cells 100 is set to 20, the battery cells 100 may be arranged in four rows and five columns, or the battery cells 100 may also be arranged in two rows and ten columns, which is not further limited in this embodiment of the application.
Alternatively, when the number of the battery cells 100 is set to be plural, the battery cells 100 with different output voltages may be provided, and for example, the number of the battery cells 100 is set to be 20, where the output voltages of ten battery cells 100 are set to be 2V, the output voltages of another ten battery cells 100 are set to be 1.5V, and then the output voltage of the battery module is 35V.
Referring to fig. 2, in some possible embodiments, the connecting sheet further includes a stable connecting sheet 300, the shape of the stable connecting sheet 300 may be adjusted according to actual conditions, and illustratively, the stable connecting sheet 300 is square, one end of the stable connecting sheet 300 is connected to the positive electrode terminal of one of the battery cells 100, and the other end of the stable connecting sheet 300 is connected to the negative electrode terminal of the adjacent battery cell 100, so as to electrically connect the adjacent battery cells 100 through the stable connecting sheet 300.
Furthermore, the stable connection sheet 300 may be made of one of silver (chemical formula Ag), copper (chemical formula Cu) and aluminum (chemical formula Al) or another conductor, which is not further limited in this embodiment of the application, and for example, the stable connection sheet 300 may be made of aluminum.
Exemplarily, when the number of the battery cells 100 is set to 10, the number of the connecting pieces is set to 9, wherein the number of the stable connecting pieces 300 and the number of the fusing type connecting pieces 200 can be adjusted according to actual conditions, and the number of the fusing type connecting pieces 200 is greater than or equal to 1, so as to ensure that a plurality of battery cells 100 in the battery module can be protected by the fusing type connecting pieces 200.
Through adopting the above technical scheme, with the anodal output and the negative pole output electrical connection of battery module in the circuit, make battery module can provide the electric energy to the circuit, a plurality of electric cores 100 are through stable form connection piece 300 and/or fusing type connection piece 200 series connection, the condition such as short circuit appears in the circuit makes the electric current of flowing through battery module too big, or, when the short circuit appears between the electric core 100 in the battery module, stable form connection piece 300 is the same with the electric current that fusing type connection piece 200 flowed through, make fusing portion 220 temperature rise and the fusing of fusing type connection piece 200, thereby make two contact site 210 separation, make the circuit be the state of opening circuit, reduce the possibility that battery module damaged when the circuit short circuit, the normal use of battery module has been guaranteed.
The detailed structure of the fuse link 200 will be described with reference to fig. 3 to 5, and the fuse link 200 may be made of one or other conductors selected from silver (chemical formula Ag), copper (chemical formula Cu), and aluminum (chemical formula Al) to electrically connect the two battery cells 100 through the fuse link 200. Illustratively, the fuse link 200 is made of aluminum, and the fuse portion 220 has a resistance greater than that of the contact portion 210. It is easily understood that the fusing type connecting piece 200 is made of aluminum, and the rigidity of the fusing type connecting piece 200 is reduced to facilitate the fusing process of the fusing type connecting piece 200.
In addition, when the battery module is connected in a circuit, the current flowing through the contact portion 210 and the current flowing through the fusing portion 220 are the same, so that the resistance of the fusing portion 220 is set to be greater than that of the contact portion 210, and the heat generated by the fusing portion 220 is greater than that generated by the contact portion 210, so that the fusing type connecting piece 200 can be fused at the fusing portion 220, and the possibility of damaging the battery cell 100 is reduced.
Referring to fig. 3 to 5, in some possible embodiments, in the same fuse type connecting tab 200, two contact portions 210 are arranged in a first direction, and a fuse portion 220 is provided as a circular arc-shaped fuse portion 220, the circular arc-shaped fuse portion 220 protruding with respect to the first direction. Wherein the first direction is a longitudinal direction of the fusing type connecting piece 200.
It is easily understood that the fusing part 220 is provided as the arc-shaped fusing part 220, so that heat of the fusing part 220 is more concentrated, and the temperature rise speed at the fusing part 220 is increased, so that the fusing part 220 can be more rapidly fused at a short circuit, so that the two contact parts 210 are separated. Illustratively, the arc-shaped fusing part 220 is integrally formed with the two contact parts 210, so that the connection between the arc-shaped fusing part 220 and the contact parts 210 is more stable, and the molding process of the fusing type connecting piece 200 is more convenient.
It is easily understood that the fusing part 220 may be provided in other shapes, for example, the fusing part 220 may be provided in a zigzag shape in the first direction; alternatively, the fusing part 220 may also be provided in a strip shape, which is not further limited in this embodiment.
Exemplarily, the fuse type connection tab 200 is tiled between two battery cells 100 to electrically connect the two battery cells 100 through two contact portions 210, and the arc-shaped fuse portion 220 protrudes toward a direction away from the battery cell 100, so as to reduce heat transferred from the arc-shaped fuse portion 220 to the battery cell 100.
Through adopting the above technical scheme, when the circumstances such as short circuit appear in the circuit make the electric current of flowing through the battery module too big, or, when the short circuit appears between the electric core 100 in the battery module, the electric current that circular arc fusing part 220 flowed through increases, make the produced heat increase of circular arc fusing part 220, and the heat gathering is in the one end that electric core 100 was kept away from to circular arc fusing part 220, so that the one end that electric core 100 was kept away from to circular arc fusing part 220 is heated and is split, thereby make two contact sites 210 connected in circular arc fusing part 220 separate, in order to play certain guard action to circuit and electric core 100 through circular arc fusing part 220.
In some possible embodiments, in the fuse type connection tab 200, a cross-sectional area of the circular arc-shaped fuse portion 220 is smaller than a cross-sectional area of the contact portion 210 in a plane perpendicular to the first direction. When the material of the arc-shaped fusing part 220 is the same as that of the contact part 210, the cross-sectional area of the arc-shaped fusing part 220 is smaller than that of the contact part 210, so that the resistance of the arc-shaped fusing part 220 per unit length is greater than that of the contact part 210 with the same length, heat can be accumulated at the arc-shaped fusing part 220, the fusing type connecting piece 200 can be fused at the fusing part 220, and the possibility of damage to the battery cell 100 is reduced.
For example, the circular arc fusing part 220 may be provided in various shapes and sizes such that the cross-sectional area of the circular arc fusing part 220 is smaller than that of the contact part 210; for example, the circular arc-shaped fusing part 220 is provided with at least one opening 221 to reduce the cross-sectional area of the circular arc-shaped fusing part 220. As for the shape and size of the opening 221 may be adjusted according to actual conditions, for example, the opening 221 may be provided as a circular opening 221, or the opening 221 may also be provided as a square opening 221.
Referring to fig. 5, in the embodiment of the present application, the opening 221 is provided as a square opening 221, the number of the square openings 221 is provided as one, and the square opening 221 is provided at the middle of the circular arc-shaped fusing part 220 in the first direction to reduce the cross-sectional area of the circular arc-shaped fusing part 220 through the square opening 221. Alternatively, the number of the square openings 221 may be multiple, and the plurality of square openings 221 may be arranged in multiple rows and multiple columns, so as to reduce the cross-sectional area of the arc-shaped fusing part 220 through the plurality of square openings 221.
Alternatively, referring to fig. 4, the openings 221 are provided as square openings 221, the number of the square openings 221 is provided as two, and the two-direction openings 221 are arranged in a second direction, wherein the second direction is provided as a width direction of the fusing type connecting piece 200. In the first direction, two openings 221 are respectively disposed at both sides of the arc-shaped fusing part 220 in the first direction to reduce the width of the arc-shaped fusing part 220, thereby reducing the cross-sectional area of the arc-shaped fusing part 220 by reducing the width of the arc-shaped fusing part 220.
By adopting the above technical solution, the arc-shaped fusing part 220 has the opening 221 so as to reduce the cross-sectional area of the arc-shaped fusing part 220 through the opening 221, so that the resistance of the arc-shaped fusing part 220 per unit length is greater than that of the contact part 210 having the same length. When the current flowing through the arc fusing part 220 increases, heat can be accumulated at the arc fusing part 220, so that the arc fusing part 220 is broken by heat.
In some possible embodiments, the contact portion 210 may be electrically connected to the electrode post 110 in various ways, for example, the contact portion 210 may be welded and fixed to the electrode post 110, so that the contact portion 210 can be electrically connected to the electrode post 110, or the contact portion 210 may also be fixed to the battery cell 100, and at least a part of the contact portion 210 abuts against the electrode post 110, so that the contact portion 210 can be electrically connected to the electrode post 110.
For example, the contact portion 210 is fixed to the pole post 110 by welding, the contact portion 210 is provided with a welding port 212, and the contact portion 210 is fixed to the pole post 110 by welding through the welding port 212; when the welding part needs to be electrically connected with the pole 110, the welding gun is used for welding and fixing the contact part 210 and the pole 110 through the welding port 212; and, contact site 210 is provided with constant head tank 213, and constant head tank 213 sets up in contact site 210 and keeps away from the surface of electric core 100, and constant head tank 213 communicates in welding mouth 212, and constant head tank 213 corresponds and sets up in utmost point post 110 to can play certain positioning action through constant head tank 213, make welder and welding mouth 212 alignment process more convenient.
For example, the shape of the welding opening 212 and the shape of the positioning groove 213 can be adjusted according to actual conditions, for example, the welding opening 212 can be set to be a circular welding opening 212, so that the welding material can be sufficiently filled in the welding opening 212, and the connection between the contact portion 210 and the pole 110 is more stable. The positioning groove 213 is a circular positioning groove 213, and the circular welding opening 212 is correspondingly disposed at the center of the circular positioning groove 213.
By adopting the above technical scheme, when the contact part 210 needs to be electrically connected to the pole post 110 of the battery cell 100, the contact part 210 is placed on the battery cell 100, so that the welding port 212 is correspondingly arranged on the pole post 110 of the battery cell 100, and then the positioning groove 213 enables the welding gun to be corresponding to the welding port 212, and the contact part 210 can be welded and fixed to the pole post 110 through the welding port 212, so that the fixing process of the contact part 210 and the pole post 110 is more convenient.
Alternatively, the contact portion 210 may be detachably disposed on the battery cell 100, and when the contact portion 210 is fixed to the battery cell 100, the contact portion 210 is electrically connected to the battery cell 100. For example, the contact portion 210 may be fixed to the battery cell 100 by clamping, and when the contact portion 210 is clamped and fixed to the battery cell 100, the contact portion 210 contacts with the terminal post 110 of the battery cell 100, so that the contact portion 210 can be electrically connected to the battery cell 100; when the fusing part 220 is broken, the contact part 210 may be removed from the surface of the battery cell 100, and then the replaced fusing-type connecting sheet 200 may be mounted on the battery cell 100, so that a plurality of battery cells 100 can be included by a new fusing-type connecting sheet 200.
Referring to fig. 2 to 5, in some possible embodiments, the contact part 210 is provided with a detection piece 211, and the detection piece 211 is electrically connected to the contact part 210 to obtain a target parameter of the battery cell 100 through the detection piece 211; the target parameters include the voltage of the battery cell 100 and the temperature of the battery cell 100. The structure and the arrangement manner of the detecting element 211 are not limited in this embodiment, and for example, the detecting element 211 may be cylindrical, and the detecting element 211 is integrally formed on the contact portion 210, so that the forming process of the detecting element 211 and the contact portion 210 is more convenient.
For example, in the same battery cell 100, the voltage of the battery cell 100 may be obtained through the detecting member 211 electrically connected to the positive electrode post and the detecting member 211 electrically connected to the negative electrode post; alternatively, the temperature of the battery cell 100 may also be acquired through the detection piece 211, so that the current state of the battery cell 100 is more intuitive.
In summary, the embodiment of the present application provides a battery module, which includes a plurality of battery cells 100 connected in series, and a connecting sheet for electrically connecting the battery cells 100; and, at least one of the connection pieces is provided as a fuse type connection piece 200, and the fuse type connection piece 200 includes two contact portions 210 and a fuse portion 220 electrically connected. The positive electrode output end and the negative electrode output end of the battery module are electrically connected in the circuit, so that the battery module can provide electric energy for the circuit, the plurality of battery cores 100 are connected in series through the stable connecting pieces 300 and/or the fusing type connecting pieces 200, when the short circuit occurs in the circuit and the like, the current flowing through the battery module is overlarge, or when the short circuit occurs between the battery cores 100 in the battery module, the current flowing through the arc fusing part 220 is increased, the heat generated by the arc fusing part 220 is increased, the heat is accumulated at one end, far away from the battery core 100, of the arc fusing part 220, one end, far away from the battery core 100, of the arc fusing part 220 is heated and broken, two contact parts 210 connected to the arc fusing part 220 are separated, and the circuit and the battery cores 100 are protected by the arc fusing part 220.
The embodiment of the application also provides electric equipment, and the electric equipment comprises the battery module in any one of the above embodiments.
In the electrical equipment, the positive output end and the negative output end of the battery module are electrically connected in the circuit, so that the battery module can provide electric energy for the circuit, the plurality of battery cores 100 are connected in series through the stable connecting sheets 300 and/or the fusing type connecting sheets 200, when the short circuit occurs in the circuit, the current flowing through the battery module is too large, or when the short circuit occurs between the battery cores 100 in the battery module, the current flowing through the arc fusing part 220 is increased, the heat generated by the arc fusing part 220 is increased, and the heat is accumulated at one end of the arc fusing part 220 far away from the battery cores 100, so that one end of the arc fusing part 220 far away from the battery cores 100 is heated and broken, and therefore the two contact parts 210 connected to the arc fusing part 220 are separated, and the circuit and the battery cores 100 are protected by the arc fusing part 220.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections, or integral combinations thereof; either directly or indirectly through intervening media, may be used in either the internal or the external relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The battery module is characterized by comprising a plurality of battery cells connected in series and connecting sheets used for electrically connecting the battery cells;
at least one of the connecting pieces is set to be a fusing type connecting piece, the fusing type connecting piece comprises two contact parts and a fusing part, and the two contact parts are electrically connected through the fusing part; between the two battery cells, one of the two contact portions is electrically connected to one of the battery cells, and the other of the two contact portions is electrically connected to the other of the battery cells.
2. The battery module according to claim 1, wherein the fuse type connecting piece is made of aluminum, and the resistance of the fuse portion is greater than that of the contact portion.
3. The battery module according to claim 1, wherein in the same fusion-cut connection tab, the two contact portions are arranged in a first direction, and the fusion portion is configured as an arc-shaped fusion portion that protrudes with respect to the first direction.
4. The battery module according to claim 3, wherein the arc-shaped fusing part has a sectional area smaller than that of the contact part in a cross section taken on a plane perpendicular to the first direction.
5. The battery module according to claim 4, wherein the circular arc-shaped fusing part is provided with at least one opening.
6. The battery module according to claim 5, wherein the opening is provided as a square opening provided at a middle portion of the circular arc fusing part in the first direction.
7. The battery module according to claim 1, wherein the cell has a terminal post; the contact part is provided with a welding port, and the contact part is welded and fixed on the pole through the welding port;
the contact site is provided with the constant head tank, the constant head tank communicate in the welding mouth, the constant head tank correspond set up in utmost point post.
8. The battery module according to claim 1, wherein the contact portion is detachably disposed on the battery cell, and when the contact portion is fixed to the battery cell, the contact portion is electrically connected to the battery cell.
9. The battery module according to claim 1, wherein the contact portion is provided with a detection piece, and the detection piece is electrically connected with the contact portion so as to obtain target parameters of the battery cell through the detection piece; the target parameters include a voltage of the cell and a temperature of the cell.
10. An electric device, characterized by comprising the battery module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211718679.9A CN115966846A (en) | 2022-12-29 | 2022-12-29 | Battery module and consumer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211718679.9A CN115966846A (en) | 2022-12-29 | 2022-12-29 | Battery module and consumer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115966846A true CN115966846A (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211718679.9A Pending CN115966846A (en) | 2022-12-29 | 2022-12-29 | Battery module and consumer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115966846A (en) |
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2022
- 2022-12-29 CN CN202211718679.9A patent/CN115966846A/en active Pending
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