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 provided with an accommodation space; the battery cell module is mounted in the accommodating space, and the battery cell module comprises a plurality of battery cells; the heating module is mounted in the accommodating space and is close to one side, provided with the terminal, of the battery cell, the heating module is used for heating the battery cell module, the heating module comprises a substrate and a heating wire, the substrate is provided with a heating channel, and the heating wire is arranged in the heating channel. The starting power supply of the utility model can well operate in an environment with a low temperature.

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 that can be used as a portable mobile power supply. Existing starting power supplies include a housing, a battery module, and a battery management module. When the starting power supply is in a low temperature environment, the starting power supply cannot operate or has low working efficiency, affecting the user experience. 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 problem that the starting power supply of the prior art is difficult to operate in an environment with a relatively low temperature.

[0004] According to the first aspect of the utility model, a starting power supply is provided, comprising: a shell having a receiving space; a battery cell module, the battery cell module being installed in the receiving space, the battery cell module comprising a plurality of battery cells; a heating module, the heating module being installed in the receiving space and close to a side of the battery cell where terminals are provided, the heating module being used to heat the battery cell module, the heating module comprising a substrate and a heating wire, the substrate being provided with a heating channel, the heating wire being provided in the heating channel.

[0005] Optionally, the substrate is a heat conducting plate.

[0006] Optionally, the heating channel is arranged on a side of the substrate away from the battery core module.

[0007] Optionally, the heating channel has a plurality of bending areas.

[0008] Optionally, there are two substrates, which are located on both sides of the battery core in the length direction.

[0009] Optionally, the terminals of the plurality of battery cells are connected via a connecting piece, and a limiting portion is provided on a side of the substrate close to the battery cell module to limit the connecting piece.

[0010] Optionally, the limiting portion is a groove extending along the thickness direction of the substrate.

[0011] Optionally, the receiving space includes a first receiving cavity and a second receiving cavity, and the starting power supply also includes: a mounting plate, which is located in the receiving space and is used to separate the first receiving cavity and the second receiving cavity, and the battery cell module is installed in the first receiving cavity; a battery management module, which includes a heating control module, and the heating control module is electrically connected to the heating module through a heating connection harness, and the battery management module is located in the second receiving cavity; a limit plate, which is located on at least one side of the inner wall of the outer shell close to the battery cell module, and the limit plate has a plurality of mounting grooves, each of which corresponds to a battery cell, and a radial dimension of the mounting groove is not less than a radial dimension of the battery cell, so that one end of the battery cell with a terminal extends into the mounting groove, and the heating module is located between the limit plate and the inner wall of the outer shell.

[0012] Optionally, the outer edge of the limiting plate has a wiring groove extending along the thickness direction of the limiting plate, and the wiring terminal of the heating connection harness can be plugged into the wiring groove.

[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] The starting power supply according to the embodiment of the present application has a heating function by adopting a heating module, which can ensure that the starting power supply can start and operate normally in a low temperature environment, etc., which can improve the user experience and ensure the working efficiency of the starting power supply.

[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 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 heating module 26.

[0060] Specifically, the housing 13 has a receiving space 15, 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, with a simple structure and high assembly efficiency. In addition, the heating can be started in advance through the 4G module of the battery system 2, which is conducive to solving the requirement that the battery cell module 21 cannot discharge at high power during low-temperature cold start.

[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 cell module 21 and a heating module 26. The shell 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.

[0062] A heating module 26 is also installed in the receiving space 15 , and the battery cell module 21 can be heated by the heating module 26 .

[0063] Among them, 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 arranged 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, it can also reduce the situation where the heating wire 262 protrudes from the substrate 261, and can avoid the heating wire 262 occupying too much accommodation space 15.

[0064] Therefore, the starting power supply 1 according to the embodiment of the present application has a heating function by adopting the heating module 26, which can ensure that the starting power supply 1 can start and operate normally in a low temperature environment, etc., which can improve the user experience and ensure the working efficiency of the starting power supply 1.

[0065] According to an embodiment of the present application, the substrate 261 is a heat-conducting plate, that is, the substrate 261 can have a heat-conducting effect, and heat transfer can be achieved through the substrate 261.

[0066] In some specific embodiments of the present application, the heating channel 263 is disposed on a side of the substrate 261 away from the battery module 21. For example, the inner side of the substrate 261 is close to the battery module 21, and the outer side of the substrate 261 is provided with a heating channel 263, which is convenient for installing, observing, and replacing the heating wire 262.

[0067] According to an embodiment of the present application, the heating channel 263 has multiple bending areas, that is, the direction of the heating wire 262 is not limited to a straight line, but can also be an arc-shaped direction, so that one heating wire 262 can heat multiple rows of battery cells 211.

[0068] In some specific embodiments of the present application, the heating wire 262 extends along the length direction of the heating channel 263 and is consistent with the shape of the heating channel 263, thereby improving the installation and removal efficiency of the heating wire 262.

[0069] According to an embodiment of the present application, there are two substrates 261 , which are located on both sides of the battery cell 211 in the length direction. That is, both sides of the battery cell module 21 can be heated simultaneously or separately.

[0070] In some specific embodiments of the present application, the terminals 2111 of multiple battery cells 211 are connected through a connecting piece 212, and a limiting member 2611 is provided on one 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 limiting member 2611 is also provided on the substrate 261, and the connecting piece 212 can be limited by the limiting member 2611.

[0071] According to an embodiment of the present application, the stopper 2611 is a groove extending along the thickness direction of the substrate 261. For example, the outer surface of the substrate 261 has a plurality of grooves, which facilitates the opening and positioning of the connecting piece 212.

[0072] In some specific embodiments of the present application, the starting power supply 1 also includes: a mounting plate 23, and the mounting plate 23 cooperates with the inner wall of the shell 13 to fix the circumferential clamp of the battery cell 211. That is to say, a mounting plate 23 is also installed in the receiving space 15, and the battery cell module 21 can be limited by the mounting plate 23 and the shell 13. 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. 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 the hard connection between the substrate 261 and the connecting piece 212.

[0073] In some specific embodiments of the present application, the accommodating space 15 includes a first accommodating cavity 151 and a second accommodating cavity 152, and the starting power supply 1 also includes: a mounting plate 23, a battery management module 22 and a limiting plate 24. The mounting plate 23 is located in the accommodating space 15 and is used to separate the first accommodating cavity 151 and the second accommodating cavity 152. The battery cell module 21 is installed in the first accommodating cavity 151. The battery management module 22 includes a heating control module. The heating control module is electrically connected to the heating module 26 through a heating connection harness 264. The battery management module 22 is located in the second accommodating cavity 152. The limiting plate 24 is located on at least one side of the inner wall of the outer shell 13 close to the battery cell module 21. The limiting 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 the end of the battery cell 211 with the terminal 2111 extends into the mounting groove 241. The heating module 26 is located between the limiting plate 24 and the inner wall of the housing 13. In this embodiment, by setting the limiting plate 24, multiple battery cells 211 can be limited, for example, multiple sodium ion cylindrical battery cells can be limited. In addition, by setting the limiting plate 24, the limiting plate 24 can conduct heat and control the distance between the heating module 26 and the end of the battery cell 211, thereby improving the uniformity of heating of the battery cell module 21 and improving the safety of the starting power supply 1.

[0074] According to one embodiment of the present application, the outer edge of the limiting 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, which can reduce the total length of the connection line 4.

[0075] It can be seen that in this embodiment, the starting power supply 1 includes the heating module 26, which can improve the working efficiency of the starting power supply 1 and optimize the user experience in a low temperature environment.

[0076] The present application also provides an electrical device, including the starting power supply 1 of any of the above embodiments. Since the starting power supply 1 can be used in a low temperature environment, the electrical device of the embodiment of the present application can also operate in a low temperature environment.

[0077] Optionally, the starting power supply 1 includes a shell 10, and in the first direction, one side of the shell 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 shell 10 includes a first part 11 and a second part 12, wherein the shell 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. According to the shell 10 of the starting power supply 1 of the embodiment of the present application, by providing a step portion on the surface of the shell 10, not only the installation height of the terminal 3 is reduced, but also the space occupied by the shell 10 is reduced, and it is also avoided that the installation space of the battery system 2 is affected by the provision of the terminal 3. It should be noted that when a step structure is provided on the surface of one side of the housing 10 , it can not only reduce the installation height of the terminal 3 , but also help to provide sufficient installation space for the heat dissipation module 25 , thereby improving the heat dissipation effect.

[0078] Optionally, the shell 10 of the starting power supply 1 is mainly composed of an outer shell 13 and a cover body 14. Specifically, a receiving space 15 with a first opening 131 is defined in the outer shell 13, and at least a portion of the cover body 14 is arranged 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 body 14 serves as the second part 12.

[0079] 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.

[0080] 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 arranged on the right side of the first opening 131. The second cover 142 is arranged 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 part 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 body 14. The second accommodating cavity 152 can be used to accommodate the heat dissipation module 25.

[0081] Optionally, the housing 10 of the starting power supply 1 further includes: a mounting plate 23, which is disposed in the receiving space 15 and is used to separate the receiving space 15 into a plurality of receiving chambers. For example, the mounting plate 23 includes 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. 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 used to separate the first receiving chamber 151 and the second receiving chamber 152 in the first direction, and the second plate body 232 can be used to separate the first receiving chamber 151 and the third receiving chamber 153 in the second direction.

[0082] 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.

[0083] Optionally, one end of the first plate body 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, thereby being able to generate pressure in the first direction on the first plate body 231, thereby causing the first plate body 231 to generate pressure in the first direction on the battery cell module 21.

[0084] 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.

[0085] Optionally, the battery cell module 21 includes a plurality of battery cells 211, such as sodium ion cylindrical battery cells. Each battery cell 211 has a terminal 2111, for example, the battery cell 211 of the battery cell module 21 is provided with a terminal 2111 in the third direction.

[0086] Optionally, the mounting groove 241 is a through groove, and 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 in parallel through the connecting piece 212 .

[0087] Optionally, 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 .

[0088] Optionally, a through hole 2123 is provided on the connecting piece 212, and a 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 limit the relative position of the limiting plate 24 and the connecting piece 212.

[0089] The housing 13 also has a second opening 132, the second cover 142 is arranged at the second opening 132, a third accommodating cavity 153 is arranged between the housing 13 and the second cover 142, and the second opening 132 is connected to the third accommodating cavity 153. For example, the first accommodating cavity 151 and the second accommodating cavity 152 are enclosed between the left part of the housing 13 and the first cover 141, and the third accommodating cavity 153 is enclosed between the right part of the housing 13 and the second cover 142. In the vertical direction, the second accommodating cavity 152 is located above the first accommodating cavity 151, and the third accommodating cavity 153 is located on the right side of the first accommodating cavity 151 and the second accommodating cavity 152. Among them, the third accommodating cavity 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 arranged on the right side of the first opening 131. The second cover 142 is arranged 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 part 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 body 14. The second accommodating cavity 152 can be used to accommodate the heat dissipation module 25.

[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 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.

[0094] Optionally, the battery cell 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 close to the shell 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 realize the fixing of the limiting plate 24 to the connecting piece 212, and realize the limitation of 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.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[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 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), and the battery cell module (21) comprising a plurality of battery cells (211); A heating module (26), the heating module (26) being installed in the receiving space (15) and close to a side of the battery cell (211) on which a terminal (2111) is provided, the heating module (26) being used to heat the battery cell module (21), the heating module (26) comprising a substrate (261) and a heating wire (262), the substrate (261) being provided with a heating channel (263), and the heating wire (262) being arranged in the heating channel (263).

2. The starting power supply (1) according to claim 1, characterized in that: The substrate (261) is a heat conducting plate.

3. The starting power supply (1) according to claim 1, characterized in that: The heating channel (263) is arranged on a side of the substrate (261) away from the battery core module (21).

4. The starting power supply (1) according to claim 1, characterized in that: The heating channel (263) has a plurality of bending areas.

5. The starting power supply (1) according to claim 1, characterized in that: The number of the substrates (261) is two, and they are located on both sides of the battery core (211) in the length direction.

6. The starting power supply (1) according to claim 1, characterized in that: The terminals (2111) of the plurality of battery cells (211) are connected via a connecting piece (212), and a limiting portion (2611) is provided on a side of the substrate (261) close to the battery cell module (21) to limit the connecting piece (212).

7. The starting power supply (1) according to claim 6, characterized in that: The limiting portion (2611) is a groove extending along the thickness direction of the substrate (261).

8. The starting power supply (1) according to claim 1, characterized in that: The receiving space (15) comprises a first receiving chamber (151) and a second receiving chamber (152), and the starting power supply (1) further comprises: a mounting plate (23), the mounting plate (23) being located in the receiving space (15) and being used to separate the first receiving cavity (151) and the second receiving cavity (152), the battery cell module (21) being mounted in the first receiving cavity (151); A battery management module (22), the battery management module (22) comprising a heating control module, the heating control module being electrically connected to the heating module (26) via a heating connection harness (264), and the battery management module (22) being located in the second accommodating cavity (152); A limiting plate (24), the limiting plate (24) being located on at least one side of the inner wall of the outer shell (13) close to the battery module (21), the limiting plate (24) having a plurality of mounting grooves (241), each of the mounting grooves (241) corresponding to a battery cell (211), the radial dimension of the mounting groove (241) being not less than the radial dimension of the battery cell (211), so that one end of the battery cell (211) having a terminal (2111) extends into the mounting groove (241), and the heating module (26) is located between the limiting plate (24) and the inner wall of the outer shell (13).

9. The starting power supply (1) according to claim 8, characterized in that: The outer edge of the limiting plate (24) has a wiring groove (242) extending along the thickness direction of the limiting plate, and the wiring end of the heating connection harness (264) can be plugged into the wiring groove (242).

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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