Battery holder and battery pack

Abstract

The present invention provides a battery cell holder and a battery pack. The battery cell holder comprises: a holder body, the holder body having a battery cell mounting cavity and a circuit board mounting cavity, the battery cell mounting cavity is used to mount the battery cell, the circuit board mounting cavity is used to mount the circuit board, the circuit board mounting cavity is located on one side of the battery cell mounting cavity; a protective plate, the side wall of the circuit board mounting cavity away from the battery cell mounting cavity is the protective plate, the protective plate and the holder body are integrally formed; the projection of the protective plate in the plane where the circuit board is located overlaps at least partially with the circuit board; the protective plate is formed with an operating window to operate the circuit board. The present invention solves the problem in the prior art that the battery cell holder structure is complex, resulting in high assembly difficulty.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a battery cell bracket and a battery pack. Background Art

[0002] In the field of two-wheeled vehicle battery packs, the outer periphery of the cell holder is usually provided with a shell before being placed in the battery compartment. When a soft shell is selected, the circuit board usually needs to be provided with an additional protective structure on the cell holder to prevent damage to the circuit board from external forces during transportation.

[0003] The additional protective structure not only needs to be installed separately, which is inconvenient to operate, but also has certain requirements for the assembly process. If the operator is not skilled, it is easy to affect the product yield due to unqualified assembly.

[0004] Therefore, existing battery packs and battery cell holders still have problems such as high operation complexity, poor product consistency, low fault tolerance, large space occupation, many parts and heavy weight. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a battery cell holder and a battery pack.

[0006] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0007] A battery cell support comprises: a support body, the support body having a battery cell installation cavity and a circuit board installation cavity, the battery cell installation cavity is used to install the battery cell, the circuit board installation cavity is used to install the circuit board, and the circuit board installation cavity is located on one side of the battery cell installation cavity; a protective plate, the side wall of the circuit board installation cavity away from the battery cell installation cavity is the protective plate, and the protective plate is formed integrally with the support body; the projection of the protective plate in the plane where the circuit board is located overlaps with the circuit board at least partially; the protective plate is formed with an operation window to operate the circuit board. By setting the battery cell installation cavity and the circuit board installation cavity on the support body, and one side of the circuit board installation cavity is used as the protective plate and is formed integrally with the support body, the structure of the battery cell support can be simplified, the production process can be reduced, the structure of the circuit board installation cavity can be effectively utilized, and the disadvantages of large space occupation and inconvenient operation caused by the additional protection structure in the prior art can be avoided. At the same time, the protective plate partially overlaps with the circuit board so that the circuit board can be protected when the circuit board installation cavity is subjected to external force. The setting of the operation window can be performed on the premise of not removing the protective plate without affecting the relevant operations on the circuit board, and the operations include but are not limited to: fixing, burning, soldering components on the circuit board, or repairing the circuit and components on the circuit board. In addition, since the protection plate in the present invention is integrally formed with the bracket body, no secondary installation is required, which greatly reduces the difficulty of assembly and greatly improves the consistency of the product.

[0008] Furthermore, the bracket body includes a first sub-bracket body and a second sub-bracket body, and the first sub-bracket body and the second sub-bracket body together enclose a battery cell installation cavity and a circuit board installation cavity; the protective plate includes at least one first sub-protective plate and at least one second sub-protective plate; the first sub-bracket body and the first sub-protective plate are integrally formed; the second sub-bracket body and the second sub-protective plate are integrally formed. By setting the bracket body to be the first sub-bracket body and the second sub-bracket body, the two sub-bracket bodies can be produced simultaneously during processing, and after the processing is completed, the first sub-bracket body and the second sub-bracket body are assembled together, so that the assembled bracket body and the protective plate together constitute the battery cell installation cavity and the circuit board installation cavity, thereby accommodating the battery cell and the circuit board.

[0009] Furthermore, the operating window formed on the protection plate includes any one of the following or any combination of the following: a notch on at least one first sub-protection plate and / or at least one second sub-protection plate, a notch formed by spacing between adjacent first sub-protection plates and / or adjacent second sub-protection plates, and a notch formed by spacing between the first sub-protection plate and the second sub-protection plate. Various sizes of operating windows are formed through various combinations to avoid components of various sizes on the circuit board.

[0010] Furthermore, the first sub-bracket body and the second sub-bracket body are spliced ​​together along the first direction, and the first sub-protection plate and the second sub-protection plate extend toward each other along the first direction, respectively, and the first direction is the axial direction of the battery cell. During installation, the first sub-bracket body and the second sub-bracket body are close to each other along the first direction to form a complete battery cell installation cavity and circuit board installation cavity. The battery cell bracket in the present invention has the characteristics of simple structure and easy disassembly and assembly.

[0011] Furthermore, the protective plate includes a plurality of first sub-protection plates and a plurality of second sub-protection plates; the plurality of first sub-protection plates are arranged at intervals along the second direction, the plurality of second sub-protection plates are arranged at intervals along the second direction, and the plurality of first sub-protection plates and the plurality of second sub-protection plates are arranged at intervals along the first direction to form an operation window in combination; the second direction is perpendicular to the first direction, and the first direction and the second direction are both located in the plane where the circuit board is located. By setting a plurality of first sub-protection plates and a plurality of second sub-protection plates, the size and position of the plurality of first sub-protection plates and the plurality of second sub-protection plates can be adjusted according to actual needs to form operation windows of different sizes and shapes, thereby meeting the need to avoid electronic components on the circuit board.

[0012] Furthermore, the battery cell holder also includes a support structure, which is formed on one side of the battery cell mounting cavity close to the circuit board mounting cavity, and the support structure provides a support surface for supporting the circuit board on the side facing the circuit board mounting cavity. The circuit board is supported by the support structure to prevent the circuit board from shaking in the circuit board mounting cavity, thereby improving the installation stability and reliability of the circuit board. At the same time, the support structure is formed on one side of the battery cell mounting cavity to reasonably utilize the space in the holder body and improve the compactness of the battery cell holder.

[0013] Furthermore, the battery cell support includes a mounting chamber structure, and a plurality of mounting chamber structures are arranged in the battery cell mounting cavity; the supporting surface includes a first supporting surface, and the supporting structure includes at least one peripheral surface of the mounting chamber structure adjacent to the circuit board mounting cavity, and at least one peripheral surface forms at least one first supporting surface, and all first supporting surfaces are arranged in the same plane. By arranging a plurality of mounting chamber structures in the battery cell mounting cavity, each mounting chamber can correspond to a battery cell, thereby accommodating and limiting a plurality of battery cells, and the first supporting surface is in contact with the bottom surface of the circuit board to support the circuit board.

[0014] Furthermore, the support structure also includes a support column, one end of which is connected to the junction of adjacent installation compartment structures, and the other end of which extends to the circuit board installation cavity and forms a second support surface, and the second support surface is arranged coplanar with the first support surface. By arranging the support column, the second support surface on the support column is used to support the circuit board, and the second support surface and the first support surface are arranged coplanarly, and both the second support surface and the first support surface are in contact with the circuit board surface, thereby providing stable support for the circuit board and ensuring the reliability of the fixation of the circuit board.

[0015] Furthermore, the support column is provided with a fixing hole so that the circuit board is connected to the fixing hole through a fastener. By opening the fixing hole on the support column, the fastener passes through the circuit board and cooperates with the fixing hole, thereby fixing the circuit board in the circuit board installation cavity to prevent the circuit board from moving due to shaking of the battery pack.

[0016] Furthermore, the battery support also includes a wire management structure, which is arranged on the support body and located on one side of the circuit board installation cavity. By arranging the wire management structure, the wire harness connected to the circuit board can be arranged to ensure clear lines.

[0017] Furthermore, the surface of the bracket body also has a circuit board plug-in port connected to the circuit board installation cavity. By providing the circuit board plug-in port, it is convenient to install the circuit board through the circuit board plug-in port. The circuit board can be inserted into the circuit board installation cavity or pulled out through the circuit board plug-in port without disassembling the entire bracket body, which is simple to operate.

[0018] Furthermore, a plug-in interface is provided at one end of the protection board near the plug-in port of the circuit board, and the battery support further includes a wire management structure, which is arranged at the plug-in interface. By arranging the plug-in interface on the protection board, when the circuit board is installed in place, the wire management structure is inserted through the plug-in interface, thereby limiting and fixing the wiring harness of the circuit board.

[0019] The present invention also provides a battery pack, comprising: a battery cell; a circuit board; a battery cell bracket, wherein the battery cell bracket is the above-mentioned battery cell bracket, the battery cell is installed in the mounting compartment structure of the bracket body of the battery cell bracket, and the circuit board is accommodated in the circuit board mounting cavity of the bracket body; and a shell, wherein the shell is used to cover the battery cell bracket. The battery cell bracket is covered by the shell to provide protection for the battery cell bracket.

[0020] Furthermore, the shell is a soft shell, and the soft shell is selected from any one of the following: PVC film, PE, PET.

[0021] The present invention has the following beneficial effects: by arranging a battery cell installation cavity and a circuit board installation cavity on the bracket body, and by arranging one side of the circuit board installation cavity as a protective plate and integrally forming it with the bracket body, the structure of the battery cell bracket can be simplified, the production process can be reduced, the structure of the circuit board installation cavity can be effectively utilized, and the drawbacks of the additional protection structure in the prior art that causes large space occupation and inconvenient operation can be avoided. At the same time, the protective plate overlaps with the circuit board part so that the circuit board can be protected when the circuit board installation cavity is subjected to external force. The setting of the operation window can be carried out without removing the protective plate and without affecting the related operations on the circuit board. The operations include but are not limited to: fixing, burning, soldering components on the circuit board, or repairing the circuits and components on the circuit board. In addition, because the protective plate in the present invention is integrally formed with the bracket body, it does not require secondary installation, which greatly reduces the difficulty of assembly and greatly improves the consistency of the product. The present invention solves the problem of high assembly difficulty caused by the complex structure of the battery cell bracket in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a battery pack provided in a specific embodiment of the present invention;

[0024] Figure 2 An exploded view of a battery pack provided in a specific embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure of two sub-bracket bodies provided for a specific embodiment of the present invention;

[0026] Figure 4 A schematic structural diagram of a battery pack without a housing provided in accordance with a specific embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of an angle of a sub-bracket body provided in a specific embodiment of the present invention;

[0028] Figure 6 A schematic structural diagram of a support body provided in a specific embodiment of the present invention having an operation window;

[0029] Figure 7 A schematic structural diagram of a bracket body having an operation window provided in another specific embodiment of the present invention.

[0030] The above drawings include the following reference numerals:

[0031] 10. Bracket body; 101. First sub-bracket body; 102. Second sub-bracket body; 11. Battery cell installation cavity; 111. Installation cabin structure; 12. First side; 13. Second side; 14. Protection plate; 141. Operation window; 142. Plug interface; 143. First sub-protection plate; 144. Second sub-protection plate; 15. Circuit board installation cavity; 16. Circuit board plug-in port; 17. Third side; 18. Fourth side; 20. Support structure; 21. First support surface; 22. Support column; 221. Second support surface; 30. Wire management structure; 40. Battery cell; 50. Circuit board; 60. Housing; 61. First board structure; 62. Second board structure; 63. Third board structure; 100. Connecting piece; 110. Wiring harness; 120. First mounting plate; 121. Avoidance hole; 130. Second mounting plate; 140. Fastener. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of the embodiments of the present invention, it should be noted that the terms “first”, “second”, etc. used herein do not specifically refer to order or sequence, nor are they used to limit the present case. They are only used to distinguish components or operations described with the same technical terms.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0039] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0040] In order to solve the problem in the prior art that the battery cell holder has a complex structure and thus has high difficulty in assembly, the present invention provides a battery cell holder and a battery pack.

[0041] In some embodiments, Figures 1 to 5 As shown, the battery pack includes a cell holder, a battery cell 40, a circuit board 50 and a shell 60. The cell holder is provided with a cell mounting cavity 11 and a circuit board mounting cavity 15 to accommodate the battery cell 40 and the circuit board 50 respectively. The shell 60 is arranged on the outer side of the cell holder to cover the cell holder.

[0042] The cell holder and battery pack are described in detail below.

[0043] In some embodiments, Figures 1 to 5 As shown, the battery cell holder includes a holder body 10 and a protective plate 14. The holder body 10 has a battery cell installation cavity 11 and a circuit board installation cavity 15. The battery cell installation cavity 11 is used to install the battery cell 40, and the circuit board installation cavity 15 is used to install the circuit board 50. The circuit board installation cavity 15 is located on one side of the battery cell installation cavity 11. The side wall of the circuit board installation cavity 15 away from the battery cell installation cavity 11 is a protective plate 14, and the protective plate 14 is integrally formed with the holder body 10. The projection of the protective plate 14 in the plane where the circuit board 50 is located overlaps at least partially with the circuit board 50. The protective plate 14 is formed with an operation window 141 to operate the circuit board 50.

[0044] By providing a battery cell mounting cavity 11 and a circuit board mounting cavity 15 on the bracket body 10, and one side of the circuit board mounting cavity 15 is used as a protective plate 14 and is integrally formed with the bracket body 10, the structure of the battery cell bracket can be simplified, the production process can be reduced, and the structure of the circuit board mounting cavity 15 can be effectively utilized, avoiding the disadvantages of large space occupation and inconvenient operation caused by the additional protection structure in the prior art. At the same time, the protective plate 14 partially overlaps with the circuit board 50, so that the circuit board 50 can be protected when the circuit board mounting cavity 15 is subjected to external force. The setting of the operation window 141 can be performed on the circuit board 50 without removing the protective plate 14, and the operation includes but is not limited to: fixing, burning, soldering components on the circuit board 50, or repairing the circuits and components on the circuit board 50. In addition, because the protective plate 14 in the present invention is integrally formed with the bracket body 10, it does not require secondary installation, which greatly reduces the difficulty of assembly and greatly improves the consistency of the product.

[0045] In some embodiments, Figures 3 to 5 As shown, in order to facilitate production and assembly, the bracket body 10 includes a first sub-bracket body 101 and a second sub-bracket body 102, and the first sub-bracket body 101 and the second sub-bracket body 102 together enclose a battery cell installation cavity 11 and a circuit board installation cavity 15. Among them, the protective plate 14 includes at least one first sub-protective plate 143 and at least one second sub-protective plate 144. The first sub-bracket body 101 and the first sub-protective plate 143 are integrally formed. The second sub-bracket body 102 and the second sub-protective plate 144 are integrally formed. By setting the bracket body 10 to be a first sub-bracket body 101 and a second sub-bracket body 102, the production of two sub-bracket bodies can be carried out simultaneously during processing. After the processing is completed, the first sub-bracket body 101 and the second sub-bracket body 102 are assembled together, so that the assembled bracket body 10 and the protective plate 14 together constitute the battery cell installation cavity 11 and the circuit board installation cavity 15, thereby accommodating the battery cell 40 and the circuit board 50.

[0046] It should be noted that, in addition to the method shown in the figure, there are actually many variations in the number and splicing of the sub-bracket bodies. For example, there can be three or more sub-bracket bodies, which are then spliced ​​together in sequence along the length direction of the battery cell bracket. As long as the sub-protection plate and the sub-bracket body are integrally formed, the technical problem to be solved by the present invention can be solved. Therefore, Figures 1 to 5 Only one preferred implementation is provided, but other variations of other embodiments that can achieve the same effect are not excluded.

[0047] Of course, in another embodiment not shown in the figure, the bracket body 10 can also be split into two upper and lower sub-bracket bodies, the lower sub-bracket body is used to provide a battery cell installation cavity 11, and the upper sub-bracket body is integrally formed with a protective plate 14 and provides a circuit board installation cavity 15, and a complete battery cell bracket is obtained by splicing the upper and lower sub-bracket bodies. Since there are many variable ways, they will not be listed one by one here.

[0048] In some embodiments, Figures 2 to 6 As shown, since the battery holder is formed by splicing the first sub-holder body 101 and the second sub-holder body 102, the first sub-holder body 101 and the second sub-holder body 102 respectively provide half of the battery installation cavity 11 and half of the circuit board installation cavity 15. When the first sub-holder body 101 and the second sub-holder body 102 are spliced ​​together, they can be used together with the protective plate 14 to enclose the entire battery installation cavity 11 and the circuit board installation cavity 15. Separately producing the first sub-holder body 101 and the second sub-holder body 102 is not only convenient for processing and effectively reduces the process difficulty, but also makes the battery holder easy to assemble.

[0049] In some embodiments, the first sub-bracket body 101 and the second sub-bracket body 102 are spliced ​​together along the first direction X, and the first sub-protection plate 143 and the second sub-protection plate 144 extend toward each other along the first direction X. The first direction X is the axial direction of the battery cell 40. Figure 3 For example, the first direction X is also the width direction of the battery holder. During installation, the first sub-holder body 101 and the second sub-holder body 102 are close to each other along the first direction X to form a complete battery installation cavity 11 and a circuit board installation cavity 15. The battery holder in the present invention has the characteristics of simple structure and easy assembly and disassembly.

[0050] In some embodiments, Figure 2 and Figure 4As shown, the openings at both ends of the cell installation cavity 11 are respectively located on the first sub-bracket body 101 and the second sub-bracket body 102, that is, the openings of the cell installation cavity 11 are respectively located on the first side 12 and the second side 13 of the bracket body 10. During assembly, the first sub-bracket body 101 and the second sub-bracket body 102 can be assembled and matched to form the bracket body 10, and then the cell 40 can be placed through the opening on the first side 12 or the second side 13. Of course, the cell 40 can also be matched with the first sub-bracket body 101 and then buckled on the second sub-bracket body 102, so as to realize the assembly of the bracket body 10 and the cell 40.

[0051] In some embodiments, Figures 2 to 3 as well as Figure 5 As shown, the battery cell support includes an installation compartment structure 111 , and a plurality of installation compartment structures 111 are arranged in the battery cell installation cavity 11 .

[0052] In some embodiments, the first sub-bracket body 101 and the second sub-bracket body 102 are both provided with a mounting chamber structure 111, and the openings on the first side surface 12 and the second side surface 13 are both connected to the mounting chamber structure 111. The two coaxially arranged mounting chamber structures 111 on the first sub-bracket body 101 and the second sub-bracket body 102 are used to jointly position a battery cell 40.

[0053] In some embodiments, a plurality of mounting chamber structures 111 are arranged in an array in the battery cell mounting cavity 11, and the battery cells 40 are correspondingly accommodated in the mounting chamber structures 111, so the plurality of battery cells 40 are also arranged in an array. Specifically, the positive electrodes of some of the battery cells 40 are located at the openings on the first side 12, and the positive electrodes of the other battery cells 40 are located at the openings on the second side 13.

[0054] In some embodiments, Figure 2 and Figure 4 As shown, the battery pack further includes a connecting sheet 100, and there are multiple connecting sheets 100. Multiple connecting sheets 100 are disposed on the first side 12 and the second side 13. Each connecting sheet 100 is connected to multiple battery cells 40, and the connecting sheet 100 located on the first side 12 or the second side 13 is used to connect the battery cell 40 and the circuit board 50. In some embodiments, the multiple battery cells 40 are grouped into groups of 8, and the positive electrodes of 4 battery cells 40 in a group of battery cells 40 and the negative electrodes of the remaining 4 battery cells 40 are connected to the same connecting sheet, thereby forming a complete circuit.

[0055] In some embodiments, the protection plate 14 includes at least one first sub-protection plate 143 and at least one second sub-protection plate 144. As long as the protection plate 14 can play the role of protecting the circuit board 50, the number and arrangement of the first sub-protection plates 143 and the second sub-protection plates 144 can be reasonably set according to actual conditions.

[0056] In some embodiments, Figure 7 As shown, the protective plate 14 includes a first sub-protective plate 143 and a second sub-protective plate 144, and the first sub-protective plate 143 is integrally formed with the first sub-bracket body 101, and the second sub-protective plate 144 is integrally formed with the second sub-bracket body 102. When the first sub-bracket body 101 and the second sub-bracket body 102 are docked together, the first sub-protective plate 143 and the second sub-protective plate 144 also extend toward each other. Of course, the number of the first sub-protective plate 143 and the second sub-protective plate 144 is not limited to one, and it can also be a combination of one first sub-protective plate 143 and multiple second sub-protective plates 144; it can also be a combination of multiple first sub-protective plates 143 and one second sub-protective plate 144.

[0057] In some embodiments, Figures 2 to 6 As shown, the protection plate 14 includes a plurality of first sub-protection plates 143 and a plurality of second sub-protection plates 144. The plurality of first sub-protection plates 143 are arranged at intervals along the second direction Y, the plurality of second sub-protection plates 144 are arranged at intervals along the second direction Y, and the plurality of first sub-protection plates 143 and the plurality of second sub-protection plates 144 are arranged at intervals along the first direction X to form an operation window 141 in combination. The second direction Y is perpendicular to the first direction X, and the first direction X and the second direction Y are both located in the plane where the circuit board 50 is located. Figure 3 For example, the second direction Y is the length direction of the battery holder. By providing a plurality of first sub-protection plates 143 and a plurality of second sub-protection plates 144, the sizes and positions of the plurality of first sub-protection plates 143 and the plurality of second sub-protection plates 144 can be adjusted according to actual needs to form operation windows 141 of different sizes and shapes, thereby meeting the need to avoid electronic components on the circuit board 50.

[0058] For easier understanding, please refer to Figure 5 and Figure 6 As shown in the figure, it can be seen that the sizes and shapes of the plurality of first sub-protection plates 143 are different, and the sizes and shapes of the plurality of second sub-protection plates 144 are also different. Therefore, the number, arrangement, size, shape, etc. of the first sub-protection plates 143 and the second sub-protection plates 144 are all determined according to the actual operation window 141 to be formed.

[0059] In some embodiments, the operating window 141 formed on the protection plate 14 includes any one of the following or any combination of multiple: a notch on at least one first sub-protection plate 143 and / or at least one second sub-protection plate 144, a notch formed by spacing between adjacent first sub-protection plates 143 and / or adjacent second sub-protection plates 144, and a notch formed by spacing between the first sub-protection plate 143 and the second sub-protection plate 144. Various sizes of operating windows 141 are formed by various combinations to avoid various sizes of components on the circuit board 50.

[0060] In some embodiments, Figure 5 , Figure 6 and Figure 7 As shown in FIG. 1 , a specific implementation method of forming the operation window 141 at multiple positions is shown. The operation window 141 may be a notch formed on the first sub-protection plate 143 or the second sub-protection plate 144; or a notch formed by two adjacent first sub-protection plates 143 among multiple first sub-protection plates 143; or a notch formed by the interval between the first sub-protection plate 143 and the second sub-protection plate 144. Figure 6 The operation window 141 formed in the embodiment shown in the figure also has the advantages of convenient demoulding, high molding degree and good product consistency.

[0061] In some embodiments, Figure 6 As shown, there are multiple first sub-protection plates 143 and multiple second sub-protection plates 144, one of which is provided with a notch; a notch is also formed between two adjacent first sub-protection plates 143 or two adjacent second sub-protection plates 144; and a notch is also formed between the first sub-protection plate 143 and the second sub-protection plate 144. All of the above notches together constitute the operation window 141. Of course, if a single notch is used as an operation window 141, it can also be considered that multiple operation windows 141 are provided.

[0062] In some embodiments, Figure 7 As shown, an inner hole type operation window 141 is provided on both the first sub-protection plate 143 and the second sub-protection plate 144 .

[0063] In some embodiments, Figure 5As shown, the battery holder further includes a support structure 20, which is formed on one side of the battery installation cavity 11 close to the circuit board installation cavity 15, and the support structure 20 provides a support surface for supporting the circuit board 50 on the side facing the circuit board installation cavity 15. The circuit board 50 is supported by the support structure 20 to prevent the circuit board 50 from shaking in the circuit board installation cavity 15, thereby improving the installation stability and reliability of the circuit board 50. At the same time, the support structure 20 is formed on one side of the battery installation cavity 11, which can reasonably utilize the space in the bracket body 10 and improve the compactness of the battery holder.

[0064] In some embodiments, the support structure 20 as the bottom surface of the circuit board installation cavity 15 can support the circuit board 50 , and the support structure 20 ensures that the circuit board 50 is arranged horizontally.

[0065] In some embodiments, Figure 5 As shown, the support surface includes a first support surface 21. The support structure 20 includes at least one outer peripheral surface of the installation chamber structure 111 adjacent to the circuit board installation cavity 15, and at least one outer peripheral surface forms at least one first support surface 21. When there are multiple first support surfaces 21, the multiple first support surfaces 21 are arranged in the same plane. During the process of installing the circuit board 50, the circuit board 50 can also slide along the first support surface 21 to facilitate installation.

[0066] In some embodiments, the mounting chamber structure 111 is approximately cylindrical in structure as a whole, and a portion of the outer peripheral surface of the mounting chamber structure 111 provided with the first supporting surface 21 is a plane surface rather than an arc surface, so as to facilitate supporting the circuit board 50 .

[0067] In some embodiments, the outer peripheral surfaces of the multiple installation compartment structures 111 close to the protection plate 14 are all planes, and the multiple planes are arranged coplanarly so that the circuit board 50 remains horizontal after entering the circuit board installation cavity 15. Of course, the outer surfaces of some of the multiple installation compartment structures 111 at the top may also be formed with planes. At the same time, the close connection between the installation compartment structure 111 and the circuit board installation cavity 15 improves the compactness of the battery holder.

[0068] In some embodiments, Figure 5 As shown, in order to further achieve support and position limiting, the support structure 20 also includes a support column 22, one end of the support column 22 is connected to the junction of the adjacent installation compartment structures 111, and the other end of the support column 22 extends to the circuit board installation cavity 15 and forms a second support surface 221, and the second support surface 221 is coplanar with the first support surface 21. By arranging the support column 22, the second support surface 221 on the support column 22 is used to support the circuit board 50, and the second support surface 221 and the first support surface 21 are coplanarly arranged to ensure the levelness of the circuit board 50.

[0069] In some embodiments, the support column 22 is integrally formed with the outer circumference of two adjacent mounting chamber structures 111. Since the outer circumference of the mounting chamber structure 111 is an arc-shaped surface, a recess is formed between the two adjacent mounting chamber structures 111. In order to further utilize the space of the bracket body 10, the support column 22 is arranged in the recess, and the top surface of the support column 22, i.e., the second support surface 221, is coplanar with the first support surface 21, thereby improving the support effect.

[0070] In some embodiments, the support column 22 is provided with a fixing hole so that the circuit board 50 is connected to the fixing hole through the fastener 140. By opening the fixing hole on the support column 22, the fastener 140 passes through the circuit board 50 and cooperates with the fixing hole to fix the circuit board 50, thereby preventing the circuit board 50 from moving due to the shaking of the battery pack.

[0071] In some embodiments, the fixing hole is an internal threaded hole, one end of the fastener 140 is provided with an external thread, and the fastener 140 cooperates with the thread of the fixing hole to fix the circuit board 50.

[0072] In some embodiments, Figure 2 As shown, the cell support also includes a wire management structure 30, which is disposed on the support body 10 and located on one side of the circuit board mounting cavity 15. By providing the wire management structure 30, the wire harness 110 connected to the circuit board 50 can be organized to ensure clear lines.

[0073] In some embodiments, the wire harness 110 has multiple wires, and the wire management structure 30 is provided with multiple limit openings at one end of the wire harness 110, each limit opening corresponding to a different connecting wire of the wire harness 110. Optionally, the limit openings are of different sizes to correspond to connecting wires of different specifications. At the same time, the design of the wire management structure 30 not only improves the cleanliness inside the battery pack, but also avoids mutual interference between connecting wires by rationally planning the path of the wire harness 110.

[0074] In some embodiments, Figure 2 As shown, the battery pack further includes a first mounting plate 120 and a second mounting plate 130 respectively arranged corresponding to the third side 17 and the fourth side 18. To further protect the battery holder, the first mounting plate 120 is provided with an avoidance hole 121 corresponding to the circuit board plug-in port 16 to avoid the wiring harness 110.

[0075] In some embodiments, Figures 2 to 5 As shown, the surface of the bracket body 10 also has a circuit board plug-in port 16 connected to the circuit board installation cavity 15. By providing the circuit board plug-in port 16, it is convenient to install the circuit board 50 through the circuit board plug-in port 16. The circuit board 50 can be inserted into the circuit board installation cavity 15 or pulled out through the circuit board plug-in port 16 without disassembling the entire bracket body 10, and the operation is simple.

[0076] In some embodiments, the width of the circuit board plug-in port 16 is greater than the width of the circuit board 50 to facilitate the installation of the circuit board 50. The circuit board plug-in port 16 is also partially located on the first sub-bracket body 101, and the other part is located on the second sub-bracket body 102, that is, the circuit board plug-in port 16 is opened on the third side 17 of the bracket body 10.

[0077] In some embodiments, a connection structure is provided on one side of the fourth side 18 located in the battery cell installation cavity 11, and buckles and slots are provided on the first sub-bracket body 101 and the second sub-bracket body 102, respectively, and the connection stability of the bracket body 10 is improved by the cooperation of the buckles and slots. Of course, a connection structure may also be provided on the inner side of the third side 17 located in the battery cell installation cavity 11.

[0078] In some embodiments, Figures 3 to 5 As shown, a plug-in port 142 is provided at one end of the protection plate 14 near the circuit board plug-in port 16, and the battery holder further includes a wire management structure 30, which is arranged at the plug-in port 142. By providing the plug-in port 142 on the protection plate 14, when the circuit board 50 is installed in place, the wire management structure 30 is inserted through the plug-in port 142, thereby limiting and fixing the wiring harness 110 of the circuit board 50.

[0079] In some embodiments, the plug-in port 142 is located at one end near the circuit board plug-in port 16. When the circuit board 50 connected with the wire harness 110 is inserted into the circuit board installation cavity 15, the wire harness 110 can be seen through the plug-in port 142. The position of the wire harness 110 of different specifications is adjusted and then placed into the wire management structure 30. Optionally, the end of the wire management structure 30 away from the avoidance gap partially extends out of the plug-in port 142 for easy disassembly and maintenance.

[0080] It should be noted that, in order to ensure sealing, after the cable management structure 30 is installed, both the plug-in port 142 and the circuit board plug-in port 16 can be sealed by gluing, thereby improving the overall sealing and stability.

[0081] In some embodiments, the shell 60 is a soft shell, and the soft shell is selected from any one of the following: PVC film, PE, PET.

[0082] In some embodiments, the housing 60 includes a first plate structure 61, a second plate structure 62 and a third plate structure 63, all of which are PVC heat shrink films, corresponding to the first side surface 12, the second side surface 13 and the protection plate 14. Since the housing 60 is soft in texture and cannot effectively protect the circuit board 50, the protection plate 14 is required.

[0083] The present invention has at least the following beneficial effects:

[0084] By providing a battery cell mounting cavity 11 and a circuit board mounting cavity 15 on the bracket body 10, and one side of the circuit board mounting cavity 15 is used as a protective plate 14 and is integrally formed with the bracket body 10, the structure of the battery cell bracket can be simplified, the production process can be reduced, and the structure of the circuit board mounting cavity 15 can be effectively utilized, avoiding the disadvantages of large space occupation and inconvenient operation caused by the additional protection structure in the prior art. At the same time, the protective plate 14 partially overlaps with the circuit board 50, so that the circuit board 50 can be protected when the circuit board mounting cavity 15 is subjected to external force. The setting of the operation window 141 can be performed on the circuit board 50 without removing the protective plate 14, and the operation includes but is not limited to: fixing, burning, soldering components on the circuit board 50, or repairing the circuits and components on the circuit board 50. In addition, because the protective plate 14 in the present invention is integrally formed with the bracket body 10, it does not require secondary installation, which greatly reduces the difficulty of assembly and greatly improves the consistency of the product.

[0085] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0086] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A battery cell support, characterized in that: include: A bracket body, the bracket body having a battery cell installation cavity and a circuit board installation cavity, the battery cell installation cavity is used to install the battery cell, the circuit board installation cavity is used to install the circuit board, and the circuit board installation cavity is located on one side of the battery cell installation cavity; A protection plate, the side wall of the circuit board installation cavity away from the battery cell installation cavity is the protection plate, and the protection plate is integrally formed with the bracket body; The projection of the protection plate in the plane where the circuit board is located at least partially overlaps with the circuit board; The protection plate is formed with an operation window for operating the circuit board; The protection plate includes a plurality of first sub-protection plates and a plurality of second sub-protection plates; A plurality of the first sub-protection plates are arranged at intervals along the second direction, a plurality of the second sub-protection plates are arranged at intervals along the second direction, and a plurality of the first sub-protection plates and a plurality of the second sub-protection plates are arranged at intervals along the first direction, so as to form the operation window in combination; The second direction is perpendicular to the first direction, the first direction is the axial direction of the battery cell, and the second direction is the length direction of the battery cell bracket; The operating window formed on the protection plate includes any one of the following or any combination of the following: a notch on at least one of the first sub-protection plate and / or at least one of the second sub-protection plate, a notch formed by spacing between adjacent first sub-protection plates and / or adjacent second sub-protection plates, and a notch formed by spacing between the first sub-protection plate and the second sub-protection plate; The battery cell bracket further comprises a support structure, wherein the support structure is formed on a side of the battery cell installation cavity close to the circuit board installation cavity, and the support structure provides a support surface for supporting the circuit board on a side facing the circuit board installation cavity; The battery cell holder includes an installation compartment structure, and a plurality of the installation compartment structures are arranged in the battery cell installation cavity; the support surface includes a first support surface, and the support structure includes at least one outer peripheral surface of the installation compartment structure adjacent to the circuit board installation cavity, and at least one of the outer peripheral surfaces forms at least one first support surface.

2. The battery cell support according to claim 1, characterized in that: The bracket body comprises a first sub-bracket body and a second sub-bracket body, and the first sub-bracket body and the second sub-bracket body together enclose the battery cell installation cavity and the circuit board installation cavity; The first sub-bracket body and the first sub-protection plate are integrally formed; The second sub-bracket body and the second sub-protection plate are formed integrally.

3. The battery cell support according to claim 2, characterized in that: The first sub-bracket body and the second sub-bracket body are spliced ​​together along a first direction, and the first sub-protection plate and the second sub-protection plate extend toward each other along the first direction respectively.

4. The battery cell support according to claim 3, characterized in that: The first direction and the second direction are both located in the plane where the circuit board is located.

5. The battery cell support according to claim 1, characterized in that: All of the first supporting surfaces are arranged coplanarly.

6. The battery cell support according to claim 5, characterized in that: The support structure also includes a support column, one end of which is connected to the junction of the adjacent installation compartment structures, and the other end of which extends toward the circuit board installation cavity to form a second support surface, which is coplanar with the first support surface.

7. The battery cell support according to claim 6, characterized in that: The support column is provided with a fixing hole so that the circuit board is connected to the fixing hole through a fastener.

8. The battery cell support according to any one of claims 1 to 7, characterized in that: The battery cell support further includes a wire management structure, which is arranged on the support body and located at one side of the circuit board installation cavity.

9. The battery cell support according to any one of claims 1 to 7, characterized in that: The surface of the bracket body also has a circuit board plug-in port communicated with the circuit board installation cavity.

10. The battery cell support according to claim 9, characterized in that: An insertion port is provided at one end of the protection plate close to the plug-in port of the circuit board, and the battery support further comprises a wire management structure, which is arranged at the insertion port.

11. A battery pack, characterized in that: include: Battery cells; Circuit boards; A cell holder, wherein the cell holder is the cell holder according to any one of claims 1 to 10, wherein the cell is mounted in a mounting compartment structure of a holder body of the cell holder, and the circuit board is accommodated in a circuit board mounting cavity of the holder body; A shell is used to cover the battery cell support.

12. The battery pack according to claim 11, characterized in that: The shell is a soft shell, and the soft shell is selected from any one of the following: PVC film, PE, PET.

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