Starting power supply and electric equipment

Abstract

The utility model provides a starting power supply and electric equipment, and the starting power supply comprises a housing which is internally provided with an accommodation space; the battery cell module is mounted in the accommodating space, the battery cell module comprises a plurality of battery cells, and the first ends of the battery cells are provided with terminals; the limiting plate is installed in the containing space, at least one part of the limiting plate is located between the inner wall of the shell and the battery cells, the limiting plate is provided with a plurality of installation grooves penetrating in the thickness direction of the limiting plate, and each installation groove corresponds to one battery cell; the radial size of the mounting groove is not smaller than that of the first end of the battery cell, so that the first end of the battery cell extends into the mounting groove, the limiting plate is adopted, the mounting groove is formed in the limiting plate, the battery cell can be fixed in the mounting groove, the battery cell can be at least limited in the circumferential direction, the battery cell can be effectively prevented from moving, and the battery cell can be prevented from being damaged. The assembly is simple, and the safety performance can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a starting power supply and an electrical device. Background Art

[0002] Existing electrical equipment often requires a starting power supply, such as a car emergency starting power supply which can be used as a portable mobile power supply. Existing starting power supplies include a housing and a battery module, etc. The battery module is usually placed directly in the housing, and the battery cells of the battery module are easily displaced, affecting the safety of the starting power supply. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a starting power supply and an electric device, which can solve the technical problems of the prior art that the battery core in the starting power supply is easy to shift.

[0004] According to the first aspect of the utility model, a starting power supply is provided, comprising: a shell having a receiving space therein; a battery cell module, the battery cell module being installed in the receiving space, the battery cell module comprising a plurality of battery cells, the first ends of the battery cells having terminals; a limit plate, the limit plate being installed in the receiving space, at least a portion of the limit plate being located between the inner wall of the shell and the battery cells, the limit plate having a plurality of installation grooves extending along the thickness direction thereof, each of the installation grooves corresponding to one of the battery cells, the radial dimension of the installation groove being not less than the radial dimension of the first end of the battery cell, so that the first end of the battery cell extends into the installation groove.

[0005] Optionally, along the first direction, the plurality of mounting grooves are divided into a plurality of rows, each row of the mounting grooves includes a plurality of mounting grooves spaced apart and distributed along the second direction, along the third direction, the first end of the battery cell has the terminal, and any two of the first direction, the second direction and the third direction have an angle.

[0006] Optionally, the limiting plate is a square member, the first direction is a width direction of the square member, the second direction is a length direction of the square member, and the third direction is a thickness direction of the square member.

[0007] Optionally, the inner wall of the shell includes a first wall surface and a second wall surface, and the starting power supply also includes: a mounting plate, the mounting plate is located in the receiving space, the mounting plate includes a first plate body and a second plate body, in a first direction, the battery cell module is clamped between the first plate body and the first wall surface, in a second direction, the battery cell module is clamped between the second plate body and the second wall surface, in a third direction, the first end of the battery cell has the terminal, and there is an angle between any two of the first direction, the second direction and the third direction.

[0008] Optionally, outer edges of the limiting plate are connected to the first plate body and the second plate body respectively.

[0009] Optionally, the inner wall surface of the mounting groove has an annular limiting portion, and the limiting portion abuts against a portion of the axial direction of the battery core.

[0010] Optionally, the starting power supply also includes: a battery management module, which is installed in the accommodation space and electrically connected to the battery cell module, and the limiting plate has a wiring groove extending along its own thickness direction, and the end of the connecting wire of the battery management module can be plugged into the wiring groove.

[0011] Optionally, the wiring slot is located at the outer edge of the limiting plate.

[0012] Optionally, the battery cell module further includes a connecting piece, through which the terminals of the plurality of battery cells are connected, the connecting piece having a through hole, and the limiting plate having a protruding limiting block on one side close to the inner wall of the outer shell, the limiting block being plugged into the through hole.

[0013] According to a second aspect of the utility model, there is provided an electrical device comprising any one of the above-mentioned starting power supplies.

[0014] According to the starting power supply of the embodiment of the utility model, a limiting plate is adopted, and an installation groove is provided on the limiting plate, so that the battery cell can be fixed in the installation groove, the battery cell can be limited at least circumferentially, the battery cell can be effectively prevented from shifting, the assembly is simple, and the safety performance can be improved.

[0015] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1 is a schematic structural diagram of a starting power supply according to an embodiment of the utility model;

[0018] Figure 2 is a partial cross-sectional view of a starting power supply according to an embodiment of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of a starting power supply according to an embodiment of the utility model;

[0020] Figure 4is a partial exploded schematic diagram of a starting power supply according to an embodiment of the utility model;

[0021] Figure 5 It is a partial structural schematic diagram of a starting power supply according to an embodiment of the utility model;

[0022] Figure 6 It is a partial structural schematic diagram of a starting power supply according to an embodiment of the utility model;

[0023] Figure 7 It is a partial structural schematic diagram of a starting power supply according to an embodiment of the utility model;

[0024] Figure 8 is a partial cross-sectional view of a starting power supply according to an embodiment of the utility model;

[0025] Fig. 9 is a partial cross-sectional view of a starting power supply according to an embodiment of the utility model;

[0026] Fig.10 It is a partial structural schematic diagram of a starting power supply according to an embodiment of the utility model;

[0027] Fig.11 It is a structural schematic diagram of a mounting plate of a starting power supply according to an embodiment of the utility model;

[0028] Fig.12 It is a structural schematic diagram of a substrate of a starting power supply according to an embodiment of the utility model;

[0029] Fig.13 It is a structural schematic diagram of a limit plate of a starting power supply according to an embodiment of the utility model;

[0030] Fig.14 It is a structural schematic diagram of a limit plate of a starting power supply according to an embodiment of the utility model;

[0031] Fig.15 It is a structural schematic diagram of a battery cell module of a starting power supply according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] Start power supply 1;

[0034] Housing 10;

[0035] first portion 11; first surface 111;

[0036] Second portion 12; second surface 121;

[0037] Housing 13; first opening 131; second opening 132; first wall 133; second wall 134; third wall 135;

[0038] Cover body 14; first cover portion 141; second cover portion 142;

[0039] Accommodating space 15; first accommodating cavity 151; second accommodating cavity 152; third accommodating cavity 153;

[0040] A first connecting column 161; a second connecting column 162; a fixing plate 163;

[0041] Battery system 2;

[0042] Battery module 21; battery cell 211; terminal 2111; connecting piece 212; total positive connecting piece 2121; total negative connecting piece 2122; through hole 2123;

[0043] Battery management module 22;

[0044] Circuit board 221; limiting protrusion 2211; limiting groove 2212; first edge 2213; second edge 2214; third edge 2215; high voltage terminal 2216;

[0045] Total negative high voltage connector input terminal 222; total negative high voltage connector output terminal 223; low voltage collection terminal 224;

[0046] Mounting plate 23; first plate body 231; second plate body 232;

[0047] Limiting plate 24; mounting slot 241; wiring slot 242; limiting block 243; limiting portion 244;

[0048] Heat dissipation module 25; first heat dissipation portion 251; heat dissipation protrusion 252; second heat dissipation portion 253; avoidance groove 2531;

[0049] Heating module 26; substrate 261; stopper 2611; heating wire 262; heating channel 263; heating connection harness 264;

[0050] Terminal 3; positive terminal 31; negative terminal 32;

[0051] Connecting line 4; total positive power harness 41; total negative power harness 42; low voltage collection harness 43;

[0052] Fixing piece 5. DETAILED DESCRIPTION

[0053] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0054] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0055] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0056] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0057] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0058] The starting power supply 1 according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0059] like Figures 1 to 15 As shown, the starting power supply 1 according to the embodiment of the present application includes: a housing 13, a battery cell module 21 and a limiting plate 24.

[0060] Specifically, the housing 13 has a receiving space 15, and the battery cell module 21 is installed in the receiving space 15. The battery cell module 21 includes multiple battery cells 211. The first end of the battery cell 211 has a terminal 2111. The limiting plate 24 is installed in the receiving space 15. At least a part of the limiting plate 24 is located between the inner wall of the housing 13 and the battery cell 211. The limiting plate 24 has multiple installation grooves 241 that pass through along its own thickness direction. Each installation groove 241 corresponds to a battery cell 211. The radial dimension of the installation groove 241 is not less than the radial dimension of the first end of the battery cell 211, so that the first end of the battery cell 211 extends into the installation groove 241. The outer periphery of the first end of the battery cell 211 can be restricted by the inner wall of the installation groove 241, thereby realizing the limitation of multiple degrees of freedom of the outer periphery of the battery cell 211.

[0061] In other words, the starting power supply 1 according to the embodiment of the present application is mainly composed of a housing 13, a battery module 21 and a limiting plate 24, wherein a receiving space 15 is defined in the housing 13, and the receiving space 15 can accommodate the battery module 21, etc. The battery module 21 may include a plurality of batteries 211. A limiting plate 24 is installed in the receiving space 15, and the limiting plate 24 is located on at least one side of the inner wall of the housing 13 close to the battery module 21, for example, a limiting plate 24 is sandwiched between an inner wall of the housing 13 and the battery module 21.

[0062] Among them, the limiting plate 24 has a mounting groove 241, and at least a part of the battery cell 211 is installed in the mounting groove 241, and the limiting plate 24 can play a role in limiting the battery cell 211. Specifically, one end of the terminal 2111 provided on the battery cell 211 is inserted into the mounting groove 241 along the axial direction of the mounting groove 241. For example, the front end of the battery cell 211 is provided with a terminal 2111, and the front end of the battery cell 211 extends into the mounting groove 241. In this embodiment, when the mounting groove 241 is a through groove, the terminals 2111 of multiple battery cells 211 can be connected simultaneously through the connecting piece 212, and the multiple battery cells 211 can be connected in series and parallel through the connecting piece 212. For another example, there are multiple battery cells 211, the length direction of each battery cell 211 is the front-to-back direction, the front and rear ends of each battery cell 211 are provided with terminals, and the front and rear ends of the battery cell module 21 are provided with limit plates 24, and the front limit plates 24 can simultaneously limit the circumferential position of multiple battery cells 211, and the rear limit plates 24 can also simultaneously limit the circumferential position of multiple battery cells 211, and the front and rear limit plates 24 can further improve the stability of the battery cell module 21. In addition, the connecting piece 212 can be located on the side of the limit plate 24 close to the inner wall of the housing 13, that is, the side away from the battery cell 211.

[0063] In addition, during installation, you can choose to install the limiting plate 24 first, and then install the battery cell 211; or first assemble the limiting plate 24 and the battery cell 211 into a small whole, and then install the small whole into the housing 13 to improve assembly efficiency.

[0064] In this embodiment, by adopting a limiting plate 24 and providing an installation groove 241 on the limiting plate 24, the battery cell 211 can be fixed in the installation groove 241, and the battery cell 211 can be at least circumferentially limited, which can effectively prevent the battery cell 211 from shifting, and the assembly is simple and the safety performance can be improved.

[0065] According to one embodiment of the present application, along the first direction, a plurality of mounting grooves 241 are divided into a plurality of rows, for example, two rows of mounting grooves 241 are included along the vertical direction. Each row of mounting grooves 241 includes a plurality of mounting grooves 241 spaced apart and distributed along the second direction, for example, a plurality of mounting grooves 241 spaced apart and distributed along the left and right directions are provided. Along the third direction, the first end of the battery cell 211 has a terminal 2111, for example, the length direction of the battery cell 211 has a terminal 2111 and the length direction of the battery cell 211 is the third direction, and the terminal 2111 in the length direction of the battery cell 211 is plugged into the mounting groove 241. Any two of the first direction, the second direction and the third direction have an angle. For example, any two of the first direction, the second direction and the third direction are perpendicular to each other. For the sake of convenience, the first direction can be the Z-axis direction, the second direction can be the X-axis direction, and the third direction can be defined as the Y-axis direction. For another example, the battery cell 211 is a cylindrical battery cell 211, the axial direction of the battery cell 211 is the third direction, and a terminal 2111 is provided at the axial end of the battery cell 211. The positions of the terminals 2111 of the multiple battery cells 211 are at least circumferentially limited by a limiting plate 24 .

[0066] In this embodiment, by using a plurality of mounting grooves 241 in conjunction with a plurality of battery cells 211 , a plurality of battery cells 211 can be simultaneously limited by a limiting plate 24 .

[0067] According to one embodiment of the present application, the limiting plate 24 is a square member, which can be a rectangle or a square. The first direction is the width direction of the square member, the second direction is the length direction of the square member, and the third direction is the thickness direction of the square member. In this embodiment, the limiting plate 24 is square in shape, which is convenient for the manufacture of the limiting plate 24, and the square limiting plate 24 can be applied to various types of battery packs and has a wide range of applications. In addition, it is also convenient to set a plurality of mounting grooves 241 on the square limiting plate 24, so as to control the arrangement of the plurality of mounting grooves 241.

[0068] In some specific embodiments of the present application, the inner wall of the outer shell 13 includes a first wall 133 and a second wall 134, the starting power supply 1 also includes a mounting plate 23, the mounting plate 23 is located in the receiving space 15, the mounting plate 23 includes a first plate body 231 and a second plate body 232, in the first direction, the battery cell module 21 is clamped between the first plate body 231 and the first wall 133, in the second direction, the battery cell module 21 is clamped between the second plate body 232 and the second wall 134, in the third direction, the first end of the battery cell 211 has a terminal 2111, and there is an angle between any two of the first direction, the second direction and the third direction.

[0069] That is to say, in the present embodiment, a mounting plate 23 is also installed in the receiving space 15, and the battery cell module 21 can be limited by the cooperation of the mounting plate 23 and the outer shell 13. Specifically, the mounting plate 23 is mainly composed of a first plate body 231 and a second plate body 232, and the mounting plate 23 can be an integral part or a split part, which is not limited here. In the first direction, the battery cell module 21 is clamped between the first plate body 231 and the first wall surface 133, that is, the first plate body 231 and the first wall surface 133 can limit the degree of freedom of the battery cell module 21 in the first direction. In the second direction, the battery cell module 21 is clamped between the second plate body 232 and the second wall surface 134, that is, the second plate body 232 and the second wall surface 134 can limit the degree of freedom of the battery cell module 21 in the second direction. For example, the first direction is the up and down direction, the second direction is the left and right direction, the first plate 231 is located above the first wall 133, and the second plate 232 is located on the right side of the second wall 134. It can simultaneously achieve the limitation of the freedom of the battery cell module 21 in the up and down directions and the left and right directions, thereby improving the safety performance of the starting power supply 1.

[0070] In addition, the first direction and the second direction have an angle, for example, the angle between the first direction and the second direction is 60°, 70°, 80°, 90° or 100°, etc. For ease of explanation, when the angle between the first direction and the second direction is 90°, the first direction can be defined as the Z-axis direction, and the second direction can be defined as the X-axis direction. In this embodiment, by adopting the first direction and the second direction having an angle between the extension directions, that is, the first direction and the second direction are arranged non-parallel, it is possible to achieve the limitation of the size and shape of at least two-dimensional space on the housing 10.

[0071] During assembly, you can choose to install the limit plate 24, the battery cell module 21 and the mounting plate 23 in sequence, or you can first assemble the limit plate 24, the battery cell module 21 and the mounting plate 23 into a small whole, and then install the small whole into the shell 13 to achieve modular installation and improve assembly efficiency.

[0072] In this embodiment, by cooperating with the mounting plate 23 and the housing 13 , the freedom of the battery cell module 21 in multiple directions can be limited at the same time, thereby improving space utilization.

[0073] According to an embodiment of the present application, the outer edges of the limiting plate 24 are respectively connected to the first plate body 231 and the second plate body 232. For example, the upper edge of the limiting plate 24 is connected to the first plate body 231, and the right edge of the limiting plate 24 is connected to the second plate body 232. In this embodiment, the limiting plate 24 can be installed and fixed by connecting the limiting plate 24 and the mounting plate 23.

[0074] In some specific embodiments of the present application, at least a portion of the mounting plate 23 is L-shaped or Z-shaped, and the L-shaped mounting plate 23 is used to facilitate fixing multiple edges of the limiting plate 24, for example, fixing a square limiting plate 24. In addition, the outer edges of the limiting plate 24 are connected to the first plate body 231 and the second plate body 232 respectively, and a closed space can be formed in combination with the housing 13, so that the battery module 21 can be limited.

[0075] According to one embodiment of the present application, the inner wall surface of the mounting groove 241 has an annular limiting portion 244, and the limiting portion 244 abuts against a portion of the axial direction of the battery cell 211. In other words, the inner wall of the mounting groove 241 is provided with at least one circle of limiting portions 244, and the limiting portion 244 can improve the limiting effect on the battery cell 211. In this embodiment, a limiting portion 244 can be provided in the mounting groove 241, and the end of the battery cell 211 can be constrained in the mounting groove 241 by the limiting portion 244. It can be seen that the circumferential positioning of the battery cell 211 can be achieved through the inner wall of the mounting groove 241, and the axial limiting of the battery cell 211 can be achieved through the limiting portion 244, thereby improving the stability of the battery cell 211.

[0076] In some specific embodiments of the present application, the starting power supply 1 also includes: a battery management module 22, the battery management module 22 is installed in the receiving space 15 and is electrically connected to the battery cell module 21, the limit plate 24 has a wiring groove 242 extending along its own thickness direction, and the end of the connecting line of the battery management module 22 can be plugged into the wiring groove 242. The battery system 2 can be defined to include a battery cell module 21 and a battery management module 22. Optionally, the limit plate 24 can be formed by injection molding, and during the injection molding, a wiring groove can be reserved, such as a wiring groove 242 for plugging in a nickel sheet at the end of the signal acquisition line, which not only improves the assembly efficiency, but also improves the reliability of laser welding.

[0077] In this embodiment, the starting power supply 1 also includes a battery management module 22. When the battery management module 22 and the battery cell module 21 are connected, a wiring groove 242 is provided on the limiting plate 24. The end of the connecting wire of the battery management module 22 can be inserted into the wiring groove 242, so that the connecting wire can be limited, thereby improving the aesthetics and neatness of the connecting wire.

[0078] According to an embodiment of the present application, the wiring groove 242 is located at the outer edge of the limiting plate 24, which can reduce the length of the connecting line, which can not only improve the aesthetics but also improve safety.

[0079] In some specific embodiments of the present application, the battery module 21 further includes a connecting piece 212, through which the terminals 2111 of the multiple battery cells 211 are connected, the connecting piece 212 has a through hole 2123, and the limiting plate 24 has a protruding limiting block 243 on one side of the inner wall of the housing 13, and the limiting block 243 is plugged into the through hole 2123. In other words, one connecting piece 212 can connect the terminals 2111 of multiple battery cells 211, and can realize the series connection of multiple battery cells 211. In this embodiment, the connecting piece 212 is provided with a through hole 2123, and the limiting block 243 is also provided on the limiting plate 24. The limiting block 243 can cooperate with the through hole 2123 to fix the limiting plate 24 to the connecting piece 212, and to limit the relative position of the limiting plate 24 and the connecting piece 212. Optionally, the limiting plate 24 can be formed by injection molding, and during the injection molding, the limiting block 243 can be reserved, which not only improves the assembly efficiency, but also improves the reliability of laser welding. Optionally, the limiting block 243 can also extend into the installation groove 241 by a portion, so that the limiting block 243 plays a limiting role on the battery cell 211, avoiding the need to additionally set the limiting portion 244 in the installation groove 241.

[0080] Optionally, in the first direction, one side of the housing 10 has a first surface 111 and a second surface 121, and the first surface 111 is higher than the second surface 121; in the second direction, the housing 10 includes a first part 11 and a second part 12, wherein the housing 10 can be divided into the first part 11 and the second part 12 along a virtual plane in the second direction. The first surface 111 is provided in the first part 11, and the second surface 121 is provided in the second part 12. The first part 11 is used to accommodate the battery module 21 and the battery management module 22, and the second surface 121 is used to install the terminal 3 electrically connected to the battery management module 22, and the first direction and the second direction have an angle. That is, the second part 12 can install the terminal 3, and the terminal 3 can be a positive terminal 31 or a negative terminal 32, and the terminal 3 is electrically connected to the battery management module 22. Among them, the battery management module 22 can be connected to the terminal 3 through a wiring harness, for example, the terminal 3 and the battery management module 22 are connected through a connecting line 4. In addition, the receiving space 15 includes a first receiving cavity 151 and a second receiving cavity 152 arranged in sequence along the first direction, the first opening 131 is connected to the second receiving cavity 152, and the first surface 111 corresponds to the second receiving cavity 152, that is, the first surface 111 and the inner wall surface of the shell 13 can enclose the second receiving cavity 152. The first receiving cavity 151 is used to receive the battery cell module 21, and the second receiving cavity 152 is used to receive the battery management module 22.

[0081] The mounting plate 23 includes a first plate body 231 and a second plate body 232. The mounting plate 23 can be an integral part or a split part, which is not limited here. The first plate body 231 extends along the second direction, and the second plate body 232 extends along the first direction. The first plate body 231 can be divided into a first accommodating cavity 151 and a second accommodating cavity 152 in the first direction, and the second plate body 232 can be divided into the first accommodating cavity 151 and the third accommodating cavity 153 in the second direction.

[0082] In addition, the limiting plate 24 can be arranged in the first part 11, and specifically, the limiting plate 24 can be installed in the first accommodating cavity 151. For example, the limiting plates 24 are arranged on the front and rear sides of the battery cell module 21, the inner wall of the shell 13 is arranged on the left side, the second plate body 232 is arranged on the right side, the first plate body 231 is arranged on the upper side, and the inner wall of the shell 13 is arranged on the lower side.

[0083] Optionally, the housing 10 of the starting power supply 1 includes: an outer shell 13 and a cover 14. Specifically, a receiving space 15 having a first opening 131 is defined in the outer shell 13, at least a portion of the cover 14 is disposed at the first opening 131, the receiving space 15 is used to receive the battery cell module 21 and the battery management module 22, and a portion of the outer shell 13 or a portion of the cover 14 serves as the second portion 12.

[0084] Optionally, along the second direction, the cover body 14 includes a first cover portion 141 and a second cover portion 142, the first cover portion 141 is installed in the first opening 131 and has a first surface 111, the second cover portion 142 has a second surface 121, and the second cover portion 142 can be used to install the terminal 3; that is, along the first direction, at least a portion of the second cover portion 142 is lower than the first cover portion 141. In addition, along the second direction, the second cover portion 142 can be located outside the first accommodating cavity 151 and the second accommodating cavity 152 at the same time.

[0085] Optionally, the housing 13 further has a second opening 132, the second cover 142 is disposed at the second opening 132, a third accommodating chamber 153 is disposed between the housing 13 and the second cover 142, and the second opening 132 is connected to the third accommodating chamber 153. For example, the first accommodating chamber 151 and the second accommodating chamber 152 are enclosed between the left portion of the housing 13 and the first cover 141, and the third accommodating chamber 153 is enclosed between the right portion of the housing 13 and the second cover 142. In the vertical direction, the second accommodating chamber 152 is located above the first accommodating chamber 151, and the third accommodating chamber 153 is located on the right side of the first accommodating chamber 151 and the second accommodating chamber 152. Among them, the third accommodating chamber 153 can be used to accommodate the wiring harness connecting the terminal 3 and the battery management module 22. The upper end of the housing 13 has a first opening 131 and a second opening 132, respectively. The second opening 132 is disposed on the right side of the first opening 131. The second cover 142 is disposed at the second opening 132. The second cover 142 and the housing 13 cooperate to form a third accommodating cavity 153, which can accommodate at least a portion of the connection line 4 for connecting the terminal 3 and the battery management module 22. In this embodiment, the second cover 142 can be used to provide an installation area for the terminal 3 and can also be used to cooperate to form the third accommodating cavity 153, which has the effect of improving the integration of the cover 14.

[0086] Optionally, a receiving space 15 is defined in the outer shell 13, and the inner wall of the outer shell 13 includes a first wall 133, a second wall 134 and a third wall 135. The battery cell module 21 is installed in the receiving space 15, and the mounting plate 23 is located in the receiving space 15. The mounting plate 23 includes a first plate body 231 and a second plate body 232. In the first direction, the battery cell module 21 is clamped between the first plate body 231 and the first wall 133. In the second direction, the battery cell module 21 is clamped between the second plate body 232 and the second wall 134. The battery cell 211 of the battery cell module 21 is provided with a terminal 2111 in the third direction, and there is an angle between any two of the first direction, the second direction and the third direction.

[0087] Optionally, one end of the first plate 231 in the second direction is connected to the second wall 134, and one end of the second plate 232 in the first direction is connected to the first wall 133. The connection here may include a detachable bolt and nut connection, welding, connection through a connecting column, etc., direct connection or indirect connection, which is not limited here. For example, one end of the first plate 231 is connected to the first connecting column 161 on the outer shell 13 through a connecting groove, and the first connecting column 161 on the outer shell 13 can extend along the second direction, so that pressure in the first direction can be generated on the first plate 231, and then the first plate 231 generates pressure in the first direction on the battery module 21. In this embodiment, by connecting the end of the first plate 231 to the second wall 134 and the end of the second plate 232 to the first wall 133, it is helpful to simplify the connection method between the mounting plate 23 and the outer shell 13, and simplify the structure inside the outer shell 13, leaving enough space for the battery module 21.

[0088] Optionally, a fixing plate 163 is further provided in the housing 13. The fixing plate 163 is L-shaped and can be located on a side of the second plate body 232 close to the battery module 21. The portion of the fixing plate 163 extending in the first direction can be connected to the first plate body 231, for example, abutting; the portion of the second plate body 232 extending in the second direction has a connecting hole, and the portion of the fixing plate 163 extending in the second direction can be connected to the portion of the second plate body 232 extending in the second direction through a second connecting column 162 extending in the first direction. For example, the second connecting column 162 extends in the up-down direction, the fixing plate 163 is L-shaped, and the mounting plate 23 is Z-shaped. By adopting the fixing plate 163, the mounting plate 23 can be limited in the second direction, which is conducive to the fixation of the battery module 21.

[0089] Optionally, the connecting piece 212 connects the terminals 2111 of multiple battery cells 211, and the connecting piece 212 is a total positive connecting piece 2121 or a total negative connecting piece 2122, wherein the total positive connecting piece 2121 is connected to the total positive power harness 41, and the total negative connecting piece 2122 is connected to the total negative high-voltage connector input terminal 222.

[0090] Optionally, the starting power supply 1 includes: a housing 13, a mounting plate 23, a battery module 21, a battery management module 22 and a heat dissipation module 25. The housing 13 has a receiving space 15, the mounting plate 23 is located in the receiving space 15, the battery module 21 and the battery management module 22 are respectively installed in the receiving space 15, the battery management module 22 is electrically connected to the battery module 21, the battery management module 22 includes a circuit board 221, a total negative high voltage connector input terminal 222, a total negative high voltage connector output terminal 223 and a low voltage collection terminal 224, the battery management module 22 is arranged on the mounting plate 23, and the heat dissipation module 25 is arranged on the side of the circuit board 221 close to and / or away from the mounting plate 23.

[0091] Optionally, two protruding limiting protrusions 2211 are provided on the circuit board 221, for example, two limiting protrusions 2211 are provided along the width direction of the circuit board 221, and the two limiting protrusions 2211 are spaced apart and form a limiting groove 2212 for installing a low-voltage collection harness connector for connecting the low-voltage collection terminal 224. In this embodiment, the limiting groove 2212 can be formed by the mutual cooperation of the two limiting protrusions 2211, so that the low-voltage collection harness connector can be limited.

[0092] Optionally, a plurality of high-voltage terminals 2216 are respectively provided on the first edge 2213 and the second edge 2214 of the circuit board 221, that is, the plurality of high-voltage terminals are respectively provided on the first edge 2213 and the second edge 2214 of the circuit board 221. A limiting groove 2212 is provided on the third edge 2215 of the circuit board 221, that is, the limiting groove 2212 is provided on the third edge 2215 of the circuit board 221. The third edge 2215 is located between the first edge 2213 and the second edge 2214, and respectively connects the first edge 2213 and the second edge 2214. For example, the width direction of the circuit board 221 extends along the front-to-back direction, and the length direction extends along the left-to-right direction. The front edge of the circuit board 221 is the first edge 2213, the rear edge of the circuit board 221 is the second edge 2214, and the right edge of the circuit board 221 is the third edge 2215.

[0093] Optionally, the heat dissipation module 25 includes a first heat dissipation portion 251, the first heat dissipation portion 251 is located between the circuit board 221 and the mounting plate 23, and the first heat dissipation portion 251 has a plurality of heat dissipation protrusions 252 spaced apart on one side close to the mounting plate 23. Two adjacent heat dissipation protrusions 252 are spaced apart to form a heat dissipation channel. In this embodiment, by using the first heat dissipation portion 251 to include a plurality of heat dissipation protrusions 252, the heat dissipation efficiency can be improved.

[0094] Optionally, the heat dissipation module 25 includes: a second heat dissipation portion 253, which is located on a side of the circuit board 221 away from the mounting plate 23 and is a plate-shaped member. In this embodiment, by using a plate-shaped member as the second heat dissipation portion 253, the heat dissipation area can be expanded.

[0095] Optionally, the circuit board 221 has a high-voltage terminal 2216, which is disposed at the total negative high-voltage connector input terminal 222 or the total negative high-voltage connector output terminal 223, and the outer edge of the second heat dissipation portion 253 has an avoidance groove 2531 for avoiding the high-voltage terminal 2216. In other words, the outer edge of the second heat dissipation portion 253 is provided with the avoidance groove 2531, so as to prevent the second heat dissipation portion 253 and the high-voltage terminal 2216 from interfering with each other.

[0096] Optionally, the starting power supply 1 also includes a heating module 26. The housing 13 has a receiving space 15, and the battery cell module 21 is installed in the receiving space 15. The battery cell module 21 includes a plurality of battery cells 211. The heating module 26 is installed in the receiving space 15 and close to the side of the battery cell 211 on which the terminal 2111 is provided. The heating module 26 is used to heat the battery cell module 21. The heating module 26 includes a substrate 261 and a heating wire 262. The substrate 261 is provided with a heating channel 263, and the heating wire 262 is provided in the heating channel 263. For example, the heating module 26 is fixed to the mounting plate 23 by screws, and has a simple structure and high assembly efficiency. In addition, the 4G module of the battery system 2 can be used to start heating in advance, which is conducive to solving the requirement that the battery cell module 21 cannot discharge at high power during low-temperature cold start. Optionally, a substrate 261 of the heating module 26 is provided on the side of the connecting piece 212 away from the battery cell 211. Optionally, a thermally conductive silicone pad is provided between the substrate 261 and the connecting piece 212 , which can not only achieve heat conduction but also avoid a hard connection between the substrate 261 and the connecting piece 212 .

[0097] Optionally, the terminals 2111 of the multiple battery cells 211 are connected through the connecting piece 212, and a stopper 2611 is provided on the side of the substrate 261 close to the battery module 21 to limit the connecting piece 212. In this embodiment, one connecting piece 212 can simultaneously connect the terminals 2111 of multiple battery cells 211. A stopper 2611 is also provided on the substrate 261, and the connecting piece 212 can be limited by the stopper 2611.

[0098] Optionally, a heating module 26 is installed in the receiving space 15, and the battery module 21 can be heated by the heating module 26. The heating module 26 is mainly composed of a substrate 261 and a heating wire 262. A heating channel 263 is provided on the substrate 261, and the heating wire 262 is provided in the heating channel 263. The heating channel 263 can not only provide an installation area for the heating wire 262, but also control the direction of the heating wire 262. In addition, the situation that the heating wire 262 protrudes from the substrate 261 can be reduced, and the heating wire 262 can be prevented from occupying too much receiving space 15.

[0099] Optionally, the battery management module 22 further includes a heating control module, the heating module 26 includes a heating wire 262 and a heating connection harness 264, and the heating connection harness 264 connects the heating wire 262 and the heating control module.

[0100] Optionally, the starting power supply 1 also includes a total positive power harness 41, a total negative power harness 42 and a low-voltage collection harness 43, the total positive power harness 41 connects the positive terminal 31 and the total positive pole of the battery cell module 21, the total negative power harness 42 connects the negative terminal 32 and the total negative high-voltage connector output terminal 223, and the low-voltage collection harness 43 connects the low-voltage collection terminal 224 and the battery cell module 21.

[0101] Optionally, the starting power supply 1 further includes a fixing member 5 having a fixed channel, and the total negative power harness 42 and the low voltage collection harness 43 pass through the fixed channel.

[0102] It can be seen that according to the starting power supply 1 of the embodiment of the present application, by adopting the limiting plate 24 and providing the mounting groove 241 on the limiting plate 24, the battery cell 211 can be limited, which can effectively prevent the battery cell 211 from shifting and improve the safety performance.

[0103] The present application also provides an electrical device, including the starting power supply 1 of any of the above-mentioned embodiments. Since the electrical device of the embodiments of the present application includes the starting power supply 1, the electrical device also has the advantage of high safety.

[0104] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A starting power supply (1), characterized in that: include: A housing (13), wherein the housing (13) has a receiving space (15); A battery cell module (21), the battery cell module (21) being installed in the receiving space (15), the battery cell module (21) comprising a plurality of battery cells (211), and a first end of each battery cell (211) having a terminal (2111); A limit plate (24), the limit plate (24) being installed in the receiving space (15), at least a portion of the limit plate (24) being located between the inner wall of the housing (13) and the battery cell (211), the limit plate (24) having a plurality of installation grooves (241) penetrating along the thickness direction thereof, each installation groove (241) corresponding to one of the battery cells (211), the radial dimension of the installation groove (241) being not less than the radial dimension of the first end of the battery cell (211), so that the first end of the battery cell (211) extends into the installation groove (241).

2. The starting power supply (1) according to claim 1, characterized in that: Along the first direction, the plurality of mounting grooves (241) are divided into a plurality of rows, each row of the mounting grooves (241) comprises a plurality of mounting grooves (241) spaced apart and distributed along the second direction, along the third direction, the first end of the battery cell (211) has the terminal (2111), and any two of the first direction, the second direction and the third direction have an angle.

3. The starting power supply (1) according to claim 2, characterized in that: The limiting plate (24) is a square piece, the first direction is the width direction of the square piece, the second direction is the length direction of the square piece, and the third direction is the thickness direction of the square piece.

4. The starting power supply (1) according to claim 1, characterized in that: The inner wall of the housing (13) comprises a first wall surface (133) and a second wall surface (134), and the starting power supply (1) further comprises: A mounting plate (23), the mounting plate (23) being located in the receiving space (15), the mounting plate (23) comprising a first plate body (231) and a second plate body (232), in a first direction, the battery cell module (21) being clamped between the first plate body (231) and the first wall surface (133), in a second direction, the battery cell module (21) being clamped between the second plate body (232) and the second wall surface (134), in a third direction, the first end of the battery cell (211) having the terminal (2111), and an angle being formed between any two of the first direction, the second direction and the third direction.

5. The starting power supply (1) according to claim 4, characterized in that: The outer edges of the limiting plate (24) are respectively connected to the first plate body (231) and the second plate body (232).

6. The starting power supply (1) according to claim 1, characterized in that: The inner wall surface of the installation groove (241) has an annular limiting portion (244), and the limiting portion (244) abuts against a portion of the axial direction of the battery core (211).

7. The starting power supply (1) according to claim 1, characterized in that: Also includes: A battery management module (22), the battery management module (22) being installed in the receiving space (15) and electrically connected to the battery cell module (21), the limiting plate (24) having a wiring groove (242) extending along the thickness direction thereof, and the end of the connecting wire of the battery management module (22) being pluggable into the wiring groove (242).

8. The starting power supply (1) according to claim 7, characterized in that: The wiring slot (242) is located at the outer edge of the limiting plate (24).

9. The starting power supply (1) according to claim 1, characterized in that: The battery cell module (21) further comprises a connecting piece (212), the terminals (2111) of the plurality of battery cells (211) are connected via the connecting piece (212), the connecting piece (212) has a through hole (2123), and the limiting plate (24) has a protruding limiting block (243) on one side close to the inner wall of the housing (13), and the limiting block (243) is plugged into the through hole (2123).

10. An electrical device, characterized in that: It comprises a starting power supply (1) as described in any one of claims 1 to 9.

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