Starting power supply and electric equipment

Abstract

The utility model provides a starting power supply and electric equipment, the starting power supply comprises a housing, an accommodating space is limited in the housing, and the inner wall of the housing comprises a first wall surface, a second wall surface and a third wall surface; the battery cell module is mounted in the accommodating space; the mounting plate is positioned in the accommodating space, the mounting plate comprises a first plate body and a second plate body, in the first direction, the battery cell module is clamped between the first plate body and the first wall surface, in the second direction, the battery cell module is clamped between the second plate body and the second wall surface, and a terminal is arranged on a battery cell of the battery cell module in the third direction; any two of the first direction, the second direction and the third direction form an included angle. According to the embodiment of the invention, the starting power supply is mainly composed of the shell, the battery cell module and the mounting plate, through the cooperation of the mounting plate and the shell, the freedom degrees of the battery cell module in multiple directions can be limited at the same time, and the space utilization rate and the safety performance are 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 module is easy to shift, 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 electrical device, which can solve the technical problems of the prior art such as the easy displacement of the battery core module in the starting power supply.

[0004] According to a first aspect of the utility model, a starting power supply is provided, comprising: a shell, a receiving space is defined in the shell, the inner wall of the shell comprises a first wall surface, a second wall surface and a third wall surface; a battery cell module, the battery cell module is installed in the receiving space; a mounting plate, the mounting plate is located in the receiving space, the mounting plate comprises 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, the battery cells of the battery cell module are provided with terminals in a third direction, and there is an angle between any two of the first direction, the second direction and the third direction.

[0005] Optionally, in the third direction, a side of the battery cell module on which the terminal is provided is spaced apart from the third wall surface.

[0006] Optionally, the mounting plate is a one-piece piece.

[0007] Optionally, the mounting plate is in an L-shape or a Z-shape.

[0008] Optionally, the starting power supply further includes: a filling piece, the filling piece is located between the second plate body and the second wall surface, the filling piece is filled between the battery cell module and the mounting plate, or is filled between the second wall surface and the battery cell module, or is filled between the outer peripheral surfaces of adjacent battery cells.

[0009] Optionally, in the first direction, the battery cell module abuts against the first plate.

[0010] Optionally, one end of the first plate body in the second direction is connected to the second wall surface, and one end of the second plate body in the first direction is connected to the first wall surface.

[0011] Optionally, the starting power supply also includes a battery management module, which is electrically connected to the battery cell module. The accommodation space includes a first accommodation cavity and a second accommodation cavity distributed along the first direction. The first plate is used to separate the first accommodation cavity and the second accommodation cavity. The first accommodation cavity is used to accommodate the battery cell module, and the second accommodation cavity is used to accommodate the battery management module.

[0012] Optionally, the accommodating space also includes a third accommodating cavity, and the third accommodating cavity and the first accommodating cavity are distributed along the second direction. The second plate is used to separate the first accommodating cavity and the third accommodating cavity, and the third accommodating cavity is used to accommodate at least a part of the connecting line for connecting the terminal and the battery management module.

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

[0014] The starting power supply according to the embodiment of the present application is mainly composed of a shell, a battery cell module and a mounting plate. By cooperating with the mounting plate and the shell, the freedom of the battery cell module in multiple directions can be limited at the same time, thereby improving space utilization and safety performance.

[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 4 is 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 6It 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 mounting plate 23.

[0060] Specifically, a receiving space 15 is defined in the housing 13, the inner wall of the housing 13 includes a first wall surface 133, a second wall surface 134 and a third wall surface 135, the battery module 21 is installed in the receiving space 15, 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 module 21 is sandwiched between the first plate body 231 and the first wall surface 133, in the second direction, the battery module 21 is sandwiched between the second plate body 232 and the second wall surface 134, the battery 211 of the battery module 21 is provided with a terminal 2111 in the third direction, and an angle is formed between any two of the first direction, the second direction and the third direction. For example, the battery 211 is a cylindrical battery 211, the axial direction of the battery 211 is the third direction, and the terminal 2111 is provided at the axial end of the battery 211.

[0061] In other words, the starting power supply 1 according to the embodiment of the present application is mainly composed of a shell 13, a battery module 21 and a mounting plate 23, wherein the shell 13 has a receiving space 15, and the receiving space 15 can serve to receive the battery module 21.

[0062] A mounting plate 23 is also installed in the receiving space 15. The mounting plate 23 cooperates with the outer shell 13 to limit the position of the battery cell module 21. Specifically, the mounting plate 23 is mainly composed of 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. In the first direction, the battery cell module 21 is clamped between the first plate body 231 and the first wall 133, that is, the first plate body 231 and the first wall 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 134, that is, the second plate body 232 and the second wall 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.

[0063] It should be noted that 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.

[0064] In addition, during installation, you can choose to install the battery module 21 first and then install the mounting plate 23; you can also choose to install the battery module 21 and the mounting plate 23 as a small whole and then install the small whole into the housing 13 to improve assembly efficiency.

[0065] Therefore, in this embodiment, the starting power supply 1 according to the embodiment of the present application is mainly composed of a shell 13, a battery cell module 21 and a mounting plate 23. By cooperating with the mounting plate 23 and the shell 13, the freedom of the battery cell module 21 in multiple directions can be limited at the same time, thereby improving space utilization and safety performance.

[0066] 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 portion 11 and a second portion 12, wherein the housing 10 can be divided into the first portion 11 and the second portion 12 along a virtual plane in the second direction. The first surface 111 is provided in the first portion 11, and the second surface 121 is provided in the second portion 12. The first portion 11 is used to accommodate the battery cell 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 battery management module 22 can be connected to the terminal 3 through a wiring harness, and the first direction and the second direction have an angle. That is, a step-like structure is formed on one side of the housing 10, and the installation height of the terminal 3 is relatively low. At this time, the mounting plate 23 is installed inside the first part 11, and the mounting plate 23 includes a first plate body 231 and a second plate body 232. In addition to being able to fix the battery module 21, the mounting plate 23 has the first plate body 231 extending along the second direction, and the second plate body 232 extending along the first direction. The first plate body 231 can separate the first accommodating cavity 151 and the second accommodating cavity 152 in the first direction, and the second plate body 232 can separate the first accommodating cavity 151 and the third accommodating cavity 153 in the second direction, which is conducive to reducing the height of the third accommodating cavity 153 relative to the second accommodating cavity 152, thereby reducing the height of the second surface 121, and further reducing the height of the terminal 3. In addition, by adopting the second plate body 232, it is also possible to avoid the second plate body 232 occupying the space in the first direction, and will not cause the height of the terminal 3 to increase. That is to say, in this embodiment, by adopting the mounting plate 23 , it is beneficial to form a step-like structure on one side of the housing 10 and to limit the battery cell module 21 and the battery management module 22 .

[0067] According to one embodiment of the present application, in the third direction, one side of the battery cell module 21 on which the terminal 2111 is provided is separated from the third wall 135. 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 defined as the Z-axis direction, the second direction can be defined as the X-axis direction, and the third direction can be defined as the Y-axis direction. In this embodiment, by separating the terminal 2111 and the third wall 135 in the third direction, the safety performance can be improved. 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 the terminal 2111 is provided at the axial end of the battery cell 211.

[0068] In some specific embodiments of the present application, the mounting plate 23 is an integrated piece, which can improve the installation efficiency and structural firmness.

[0069] According to one embodiment of the present application, the shape of the mounting plate 23 is L-shaped or Z-shaped, for example, the mounting plate 23 is L-shaped, and the first plate 231 and the second plate 232 can be combined to form an L-shaped structure; for another example, the shape of the mounting plate 23 is Z-shaped, and the edge of the first plate 231 or the second plate 232 can be bent, etc., which is conducive to the connection between the mounting plate 23 and the housing 13. In this embodiment, the shape of the mounting plate 23 is L-shaped or Z-shaped, etc., which has the advantages of structural diversity, flexible setting, and the ability to simultaneously limit the degrees of freedom in two directions, and also has the advantage of simple assembly. In addition, by adopting the shape of the mounting plate 23 as L-shaped or Z-shaped, it is not only conducive to forming multiple accommodating cavities, but also conducive to realizing that the surface of the housing 13 has a height difference, reducing the height of the terminal 3, and the terminal 3 is arranged on the outside of the second direction of the battery system 2.

[0070] In some specific embodiments of the present application, the starting power supply 1 further includes a filling piece, which is located between the second plate 232 and the second wall 134, and is filled between the battery module 21 and the mounting plate 23, or between the second wall 134 and the battery module 21, or between the outer peripheral surfaces of adjacent battery cells 211. In this embodiment, by using the filling piece, the battery module 21 can be prevented from being damaged due to collision, and the connection tightness between the battery module 21 and the mounting plate 23 and the housing 13 can be improved to prevent the battery module 21 from being easily displaced.

[0071] According to an embodiment of the present application, in the first direction, the battery cell module 21 abuts against the first plate 231. That is, the outer side of the battery cell module 21 can directly abut against the surface of the first plate 231, which can increase the size of the battery cell module 21 in a limited space, ensure the capacity of the battery cell module 21, and also ensure that the battery cell module 21 is limited by the first plate 231 in the first direction.

[0072] In some specific embodiments of the present application, 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 shell 13 through a connecting groove, and the first connecting column 161 on the 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 conducive to simplifying the connection method between the mounting plate 23 and the shell 13, and simplifying the structure inside the shell 13, leaving enough space for the battery module 21.

[0073] 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.

[0074] According to an embodiment of the present application, the starting power supply 1 further includes a battery management module 22, which is electrically connected to the battery module 21, and the receiving space 15 includes a first receiving cavity 151 and a second receiving cavity 152 distributed along a first direction, and the first plate 231 is used to separate the first receiving cavity 151 and the second receiving cavity 152, the first receiving cavity 151 is used to receive the battery module 21, and the second receiving cavity 152 is used to receive the battery management module 22. Optionally, the battery management module 22 is installed on the first plate 231. During installation, the battery module 21 can be installed in the housing 13 first, and then the mounting plate 23 and the battery management module 22 are sequentially arranged; or, the battery module 21 and the mounting plate 23 are first formed into a small whole, and the small whole is installed in the housing 13, and then the battery management module 22 is installed; or, the battery module 21, the mounting plate 23 and the battery management module 22 are first formed into a small whole, and the small whole is installed in the housing 13 together, so as to further improve modularization and installation efficiency. It can be seen that the installation methods are diverse and flexible.

[0075] In other words, the storage space 15 is also equipped with a battery management module 22. Specifically, the first plate 231 can separate at least a portion of the storage space 15 into a first storage cavity 151 and a second storage cavity 152 in a first direction. For example, the first direction is a vertical direction, and the second storage cavity 152 is located above the first storage cavity 151. More specifically, the first storage cavity 151 can accommodate the battery cell module 21, and the second storage cavity 152 can accommodate the battery management module 22. In this embodiment, the first plate 231 can separate the space for accommodating the battery cell module 21 and the battery management module 22, and can also provide an installation area for the battery management module 22.

[0076] In some specific embodiments of the present application, the receiving space 15 further includes a third receiving cavity 153, the third receiving cavity 153 and the first receiving cavity 151 are distributed along the second direction, the second plate 232 is used to separate the first receiving cavity 151 and the third receiving cavity 153, and the third receiving cavity 153 is used to receive at least a portion of the connection line 4 used to connect the terminal 3 and the battery management module 22. For example, the third receiving cavity 153 is located on the right side of the first receiving cavity 151 and the second receiving cavity 152 at the same time, and the second receiving cavity 152 is located above the first receiving cavity 151. Since the battery management module 22 and the terminal 3 are located close to each other, the length of the connection line 4 connecting the terminal 3 and the battery management module 22 can be reduced.

[0077] Optionally, the battery management module 22 is mounted on the first plate 231. That is, the battery management module 22 can be mounted on the first plate 231, that is, the first plate 231 can not only be used to separate the receiving space 15, but also provide an installation area for the battery management module 22. A portion of the receiving space 15 can be separated in the second direction by the second plate 232, so that the first receiving cavity 151 and the third receiving cavity 153 can be obtained. The third receiving cavity 153 can accommodate the connection line 4 between the terminal 3 and the battery management module 22, which can prevent the connection line 4 from being exposed, thereby improving the appearance and safety performance.

[0078] It can be seen that according to the starting power supply 1 of the embodiment of the present application, by providing the mounting plate 23, the freedom of the battery module 21 in multiple directions can be limited at the same time, thereby improving space utilization and safety performance.

[0079] 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.

[0080] 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.

[0081] Optionally, the housing 13 further has a second opening 132 , the second cover portion 142 is disposed at the second opening 132 , a third accommodating cavity 153 is defined between the housing 13 and the second cover portion 142 , and the second opening 132 is in communication with the third accommodating cavity 153 .

[0082] Optionally, the battery system 2 includes a battery cell module 21 and a battery management module 22, and the outer shell 13 and the cover body 14 cooperate to form a receiving space 15, which can be used to receive the battery system 2, specifically, to receive the battery cell module 21 and the battery management module 22, that is, the receiving space 15 can play a containing role.

[0083] Optionally, the terminals 2111 of a plurality of battery cells 211 may be simultaneously connected through the connecting sheet 212 to achieve series-parallel connection of the plurality of battery cells 211 .

[0084] 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.

[0085] Optionally, the terminals 2111 of the multiple battery cells 211 are connected through a connecting piece 212, the connecting piece 212 has a through hole 2123, and the side of the limiting plate 24 close to the inner wall of the shell 13 has a protruding limiting block 243, 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 the series connection of multiple battery cells 211 can be realized. 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 realize the fixing of the limiting plate 24 to the connecting piece 212, and to realize the limitation of the relative position of the limiting plate 24 and the connecting piece 212. In addition, the connecting piece 212 can be located on the side of the limiting plate 24 close to the inner wall of the shell 13, that is, the side away from the battery cell 211.

[0086] Optionally, 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 a side of the circuit board 221 close to and / or away from the mounting plate 23.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] Optionally, the starting power supply 1 also includes a heating module 26, which is installed in the receiving space 15 and close to the side of the battery cell 211 where 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, with 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 problem that the battery cell module 21 cannot discharge at high power during low-temperature cold start.

[0093] 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.

[0094] Optionally, 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.

[0095] 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.

[0096] 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.

[0097] Optionally, the starting power supply 1 also includes a limit plate 24, which is arranged in the first part 11. The limit plate 24 has an installation groove 241 that penetrates along its own thickness direction. At least a part of the battery cell 211 of the battery cell module 21 is installed in the installation groove 241, and the circumferential limitation of the battery cell 211 can be achieved through the installation groove 241.

[0098] Optionally, 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.

[0099] Optionally, the limit plate 24 is located on the inner wall of the first part 11 close to at least one side of the battery cell module 21, and the limit plate 24 has a plurality of mounting grooves 241, each mounting groove 241 corresponds to a battery cell 211, and the radial dimension of the mounting groove 241 is not less than the radial dimension of the battery cell 211, so that one end of the battery cell 211 with the terminal 2111 extends into the mounting groove 241, and the outer edge of the limit plate 24 has a wiring groove 242 extending along its own thickness direction, and the wiring terminal of the heating connection harness 264 can be plugged into the wiring groove 242.

[0100] The present application also provides an electrical device, including the starting power supply 1 of any of the above embodiments. Since the electrical device of the present application embodiment includes the starting power supply 1 of any embodiment, the electrical device also has the same advantages, such as high safety performance and stable structure.

[0101] 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 a receiving space (15) is defined in the housing (13), and an inner wall of the housing (13) comprises a first wall surface (133), a second wall surface (134), and a third wall surface (135); A battery cell module (21), the battery cell module (21) being installed in the receiving space (15); 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), wherein in a first direction, the battery cell module (21) is sandwiched between the first plate body (231) and the first wall surface (133), and in a second direction, the battery cell module (21) is sandwiched between the second plate body (232) and the second wall surface (134), the battery cell (211) of the battery cell module (21) is provided with a terminal (2111) in a third direction, and an angle is formed between any two of the first direction, the second direction and the third direction.

2. The starting power supply (1) according to claim 1, characterized in that: In the third direction, the side of the battery cell module (21) on which the terminal (2111) is provided is spaced apart from the third wall surface (135).

3. The starting power supply (1) according to claim 1, characterized in that: The mounting plate (23) is an integral piece.

4. The starting power supply (1) according to any one of claims 1 to 3, characterized in that: The shape of the mounting plate (23) is L-shaped or Z-shaped.

5. The starting power supply (1) according to claim 1, characterized in that: Also includes: A filler, wherein the filler is located between the second plate body (232) and the second wall surface (134), and the filler is filled between the battery cell module (21) and the mounting plate (23), or is filled between the second wall surface (134) and the battery cell module (21), or is filled between the outer peripheral surfaces of adjacent battery cells (211).

6. The starting power supply (1) according to claim 1, characterized in that: In the first direction, the battery core module (21) abuts against the first plate (231).

7. The starting power supply (1) according to claim 1, characterized in that: One end of the first plate body (231) in the second direction is connected to the second wall surface (134), and one end of the second plate body (232) in the first direction is connected to the first wall surface (133).

8. The starting power supply (1) according to claim 1, characterized in that: The starting power supply (1) further comprises a battery management module (22), wherein the battery management module (22) is electrically connected to the battery cell module (21); the accommodating space (15) comprises a first accommodating cavity (151) and a second accommodating cavity (152) distributed along the first direction; the first plate (231) is used to separate the first accommodating cavity (151) and the second accommodating cavity (152); the first accommodating cavity (151) is used to accommodate the battery cell module (21), and the second accommodating cavity (152) is used to accommodate the battery management module (22).

9. The starting power supply (1) according to claim 8, characterized in that: The receiving space (15) further comprises a third receiving cavity (153), wherein the third receiving cavity (153) and the first receiving cavity (151) are distributed along the second direction, the second plate (232) is used to separate the first receiving cavity (151) and the third receiving cavity (153), and the third receiving cavity (153) is used to receive at least a portion of a connection line (4) for connecting the terminal (3) and the battery management module (22).

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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