Battery pack and power device with same

Abstract

The utility model discloses a battery pack and a power device with the same. The battery pack comprises a shell, a mounting bracket, a battery module and a cooling assembly, an avoiding hole is formed in the upper surface of the shell; the mounting bracket comprises a mounting plate body, and a first mounting hole and a second mounting hole are formed in the mounting plate body; the cooling assembly comprises a liquid cooling plate and a liquid cooling pipe, the liquid cooling pipe comprises a liquid inlet pipe and a liquid outlet pipe, one end of the liquid inlet pipe communicates with a liquid inlet of the liquid cooling plate, the other end of the liquid inlet pipe sequentially penetrates through the first mounting hole and the avoiding hole from bottom to top, and one end of the liquid outlet pipe communicates with a liquid outlet of the liquid cooling plate; and the other end of the liquid outlet pipe sequentially penetrates through the second mounting hole and the avoiding hole from bottom to top. The liquid inlet pipe and the liquid outlet pipe extend out of the shell from bottom to top, so that when the battery pack is assembled, the liquid inlet pipe and the liquid outlet pipe can realize automatic butt joint, the assembling time can be saved, the assembling consistency can be ensured, and in addition, in the transportation process of the battery pack, the liquid inlet pipe and the liquid outlet pipe are not easy to collide and damage.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pack and a power device having the same. Background Art

[0002] As an energy unit for storing and releasing energy, the battery pack's liquid cooling, liquid heating, high and low voltage connection and transmission with the power device are also one of the hot topics in research on battery packs.

[0003] Most existing battery packs have cooling and heating systems and high-pressure and low-pressure systems that interact with the power unit. The cooling and heating systems of the existing battery packs are plugged and matched with the ports on the power unit through the liquid inlet and outlet pipes of the liquid cooling pipe to interact with the power unit; the high-pressure and low-pressure systems of the existing battery packs are plugged and matched with the ports on the power unit through the high-pressure connector and the low-pressure connector to interact with the power unit; among them, the liquid inlet pipe, the liquid outlet pipe, the high-pressure connector and the low-pressure connector are usually arranged at the front end or the rear end of the battery pack, and most of them extend straight; when the battery pack is assembled to the power unit, it is often manually plugged and assembled.

[0004] The designs of the existing battery pack's cooling, heating systems and high-voltage and low-voltage systems have problems such as taking up a lot of space, being easily damaged by bumps and collisions, and having high manufacturing and maintenance costs. During manual assembly, there are safety issues such as a high rate of plugging errors, improper plugging, and exposed high-voltage poles, which can easily cause electric shocks. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery pack that occupies less space, is not easily damaged by knocks, and is easy to install.

[0006] According to the embodiment of the utility model, the battery pack includes: a shell, a mounting bracket, a battery module and a cooling assembly; the upper surface of the shell is provided with an avoidance hole; the mounting bracket is installed in the shell, the mounting bracket includes a mounting plate body, the mounting plate body is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole both extend in the up-down direction; the cooling assembly is installed in the shell, the cooling assembly includes a liquid cooling plate and a liquid cooling pipe, the liquid cooling pipe includes a liquid inlet pipe and a liquid outlet pipe, one end of the liquid inlet pipe is connected to the liquid inlet of the liquid cooling plate, the other end of the liquid inlet pipe passes through the first mounting hole and the avoidance hole in sequence from bottom to top, and is fixedly connected to the mounting plate body, one end of the liquid outlet pipe is connected to the liquid outlet of the liquid cooling plate, the other end of the liquid outlet pipe passes through the second mounting hole and the avoidance hole in sequence from bottom to top, and is fixedly connected to the mounting plate body.

[0007] According to the battery pack of the embodiment of the utility model, a mounting bracket is provided to limit and fix the protruding ends of the liquid inlet pipe and the protruding ends of the liquid outlet pipe, thereby ensuring the stability of the liquid inlet pipe and the liquid outlet pipe when they are docked; the liquid inlet pipe and the liquid outlet pipe extend out of the shell from bottom to top, so that when the battery pack is assembled, the liquid inlet pipe and the liquid outlet pipe can be automatically docked, thereby saving assembly time and ensuring the consistency of assembly. In addition, during the transportation of the battery pack, the liquid inlet pipe and the liquid outlet pipe extending from the bottom to the top of the shell are not prone to bumping and damage, which effectively reduces the maintenance cost. At the same time, the space occupied by the battery pack is reduced, thereby reducing the transportation cost of the battery pack.

[0008] In addition, the battery pack according to the utility model may also have the following additional technical features:

[0009] In some embodiments, a third mounting hole is further provided on the mounting plate body, and the third mounting hole extends in the up and down directions; the battery pack also includes: a connector assembly, the connector assembly is installed in the shell, the connector assembly includes a connector and a connecting harness, the connector is installed on the mounting plate body, the interface of the connector extends upward and passes through the avoidance hole, one end of the connecting harness is connected to the battery module, and the other end is connected to the connector through the third mounting hole from bottom to top.

[0010] In some embodiments, the connector assembly also includes a protective seat, which is fixedly connected to the mounting plate body, and a mounting groove with an upward opening is provided on the protective seat. The connector is installed at the bottom of the mounting groove, and a through hole is provided at the bottom of the mounting groove. The connecting wiring harness passes through the through hole and is connected to the connector.

[0011] In some embodiments, the shell includes an upper shell and a lower shell, the avoidance hole is arranged on the upper shell, and a connecting beam is arranged on the bottom of the lower shell, the connecting beam extends along the length direction or the width direction of the lower shell, and a first mounting portion is arranged on the connecting beam; the mounting bracket also includes a support plate body, the support plate body is arranged at the bottom of the mounting plate body, and a second mounting portion is arranged on the support plate body, and the first mounting portion and the second mounting portion cooperate to fix the mounting bracket on the connecting beam.

[0012] In some embodiments, in the length direction of the connecting beam, one end of the connecting beam is fixedly connected to the side wall of the lower shell.

[0013] In some embodiments, the upper shell is provided with an avoidance groove which is recessed toward the lower shell, and the avoidance hole is provided at the bottom of the avoidance groove.

[0014] In some embodiments, a plurality of first fixing holes are provided on the mounting plate body, a plurality of second fixing holes corresponding to the plurality of first fixing holes are provided at the bottom of the avoidance groove, and a fixing member passes through the first fixing holes and the second fixing holes to fix the mounting bracket to the upper shell body.

[0015] In some embodiments, a sealing member is disposed between a side of the bottom of the avoidance groove facing the mounting plate body and an upper surface of the mounting plate body.

[0016] In some embodiments, the battery pack further includes: a baffle, the baffle being fixedly connected to the shell, the baffle being located in a circumferential direction of the avoidance hole, and the baffle extending upward.

[0017] The utility model also provides a power device having the above embodiment.

[0018] According to the power device of the embodiment of the utility model, by providing the battery pack of the above embodiment, the assembly speed and efficiency of the power device can be effectively improved.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an assembly diagram of a battery pack according to an embodiment of the utility model;

[0021] Figure 2 is an exploded view of a battery pack (part) according to an embodiment of the utility model;

[0022] Figure 3 is a top view of a battery pack (with the upper housing removed) according to an embodiment of the utility model;

[0023] Figure 4 is an assembly diagram of a mounting bracket, a liquid cooling tube and a connector assembly according to an embodiment of the utility model;

[0024] Figure 5 is a schematic structural diagram of a mounting bracket according to an embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a connector assembly according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 100. Battery pack;

[0028] 1. Shell; 11. Upper shell; 12. Lower shell; 13. Avoidance hole; 111. Avoidance groove;

[0029] 2. Mounting bracket; 21. Mounting plate; 22. Supporting plate; 211. First mounting hole; 212. Second mounting hole; 213. Third mounting hole; 214. First fixing hole;

[0030] 31. Liquid cooling pipe; 311. Liquid inlet pipe; 312. Liquid outlet pipe;

[0031] 4. Connector assembly; 41. Connector; 42. Connecting harness; 43. Protective seat; 411. High-voltage connector; 412. Low-voltage connector; 431. Mounting slot;

[0032] 5. Connecting beam; 6. Seal; 7. Baffle; 8. Battery module. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference below Figure 1-Figure 6 A battery pack 100 according to an embodiment of the present invention is described.

[0038] like Figures 1 to 6 As shown, the battery pack 100 according to the embodiment of the utility model includes: a shell 1, a mounting bracket 2, a battery module 8 and a cooling assembly; the upper surface of the shell 1 is provided with an avoidance hole 13; the mounting bracket 2 is installed in the shell 1, and the mounting bracket 2 includes a mounting plate 21, and the mounting plate 21 is provided with a first mounting hole 211 and a second mounting hole 212, and the first mounting hole 211 and the second mounting hole 212 are extended in the up-down direction; the cooling assembly is installed in the shell 1, and the cooling assembly includes a liquid cooling Plate and liquid cooling tube 31, the liquid cooling tube 31 includes a liquid inlet tube 311 and a liquid outlet tube 312, one end of the liquid inlet tube 311 is connected to the liquid inlet of the liquid cooling plate, the other end of the liquid inlet tube 311 passes through the first mounting hole 211 and the avoidance hole 13 from bottom to top in sequence, and is fixedly connected to the mounting plate body 21, one end of the liquid outlet tube 312 is connected to the liquid outlet of the liquid cooling plate, the other end of the liquid outlet tube 312 passes through the second mounting hole 212 and the avoidance hole 13 from bottom to top in sequence, and is fixedly connected to the mounting plate body 21.

[0039] In this embodiment, the avoidance hole 13 on the shell 1 is used to avoid the liquid inlet pipe 311 and the liquid outlet pipe 312 extending from the shell 1, so that the liquid inlet pipe 311 and the liquid outlet pipe 312 can be docked and installed with the port on the power device; the mounting plate 21 is used to limit and fix the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312; the cooling assembly is used to cool or heat the battery pack 100, and the cooling assembly is docked and installed with the port on the power device through the liquid inlet pipe 311 and the liquid outlet pipe 312 of the liquid cooling pipe 31, so as to form a liquid cooling cycle.

[0040] In a specific embodiment, for example Figure 2As shown, the mounting bracket 2 is installed in the shell 1, the mounting plate body 21 is parallel to the bottom surface of the shell 1, and the mounting plate body 21 is provided with a first mounting hole 211 and a second mounting hole 212, both of which are circular holes and are spaced apart; the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312 are both L-shaped joints, so that the liquid inlet pipe 311 passes through the first mounting hole 211 from bottom to top and the liquid outlet pipe 312 passes through the second mounting hole 212 from bottom to top; the avoidance hole 13 on the shell 1 is located above the mounting bracket 2 and covers the first mounting hole 211 and the second mounting hole 212, and the liquid inlet pipe 311 and the liquid outlet pipe 312 passing through the first mounting hole 211 and the second mounting hole 212 continue to extend out of the avoidance hole 13 so as to be docked and installed with the port on the power device.

[0041] Furthermore, most of the existing battery packs 100 are installed from bottom to top at the bottom of the power device. The design of the liquid inlet pipe 311 and the liquid outlet pipe 312 of the existing battery pack 100 that extend straight out is inconsistent with the overall assembly direction of the battery pack 100, and requires additional manual assembly, which not only increases the assembly time but also fails to ensure the consistency of the assembly. The liquid inlet pipe 311 and the liquid outlet pipe 312 of the battery pack 100 of the present application extend out of the shell 1 from bottom to top. In this way, when the battery pack 100 is assembled, the assembly direction of the liquid inlet pipe 311 and the liquid outlet pipe 312 can be consistent with the assembly direction of the battery pack 100, thereby realizing automatic docking and installation without the need for additional manual assembly, which not only saves assembly time but also ensures the consistency of assembly.

[0042] In a specific embodiment, a plurality of sealing rings are provided on the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312 to prevent leakage of the coolant, thereby effectively improving the overall sealing performance of the battery pack 100; threads are provided on the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312, and nuts are used to cooperate with the threads so that the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312 are fixedly connected to the mounting plate 21.

[0043] According to the battery pack 100 of the embodiment of the utility model, a mounting bracket 2 is provided to limit and fix the protruding ends of the liquid inlet pipe 311 and the protruding ends of the liquid outlet pipe 312, thereby ensuring the stability of the liquid inlet pipe 311 and the liquid outlet pipe 312 when they are docked; the liquid inlet pipe 311 and the liquid outlet pipe 312 extend out of the shell 1 from bottom to top, so that when the battery pack 100 is assembled, the liquid inlet pipe 311 and the liquid outlet pipe 312 can be automatically docked, thereby saving assembly time and ensuring the consistency of assembly. In addition, during the transportation of the battery pack 100, the liquid inlet pipe 311 and the liquid outlet pipe 312 extending from the shell 1 from bottom to top are not prone to bumping and damage, which effectively reduces the maintenance cost. At the same time, the space occupied by the battery pack 100 is reduced, thereby reducing the transportation cost of the battery pack 100.

[0044] In one embodiment of the present invention, Figures 1 to 6 As shown, a third mounting hole 213 is also provided on the mounting plate body 21, and the third mounting hole 213 extends in the up-down direction; the battery pack 100 also includes: a connector assembly 4, the connector assembly 4 is installed in the shell 1, the connector assembly 4 includes a connector 41 and a connecting harness 42, the connector 41 is installed on the mounting plate body 21, the interface of the connector 41 extends upward and passes through the avoidance hole 13, one end of the connecting harness 42 is connected to the battery module 8, and the other end is connected to the connector 41 through the third mounting hole 213 from bottom to top.

[0045] In this embodiment, the connector assembly 4 is used to transmit current toward the electrical equipment on the power device to maintain stable operation of the electrical equipment.

[0046] In a specific embodiment, for example Figure 2 and Figure 5 As shown, a third mounting hole 213 is provided on the mounting plate body 21 parallel to the bottom of the shell 1. The third mounting hole 213 is a long hole and is spaced apart from the first mounting hole 211 and the second mounting hole 212. The connector 41 includes a high-voltage connector 411 and a low-voltage connector 412. The high-voltage connector 411 and the low-voltage connector 412 are both installed above the third mounting hole 213. The connecting harness 42 includes a high-voltage harness and a low-voltage harness. The high-voltage harness passes through the third mounting hole 213 from bottom to top and is connected to the high-voltage connector 411. The low-voltage harness passes through the third mounting hole 213 from bottom to top and is connected to the low-voltage connector 412. The avoidance hole 13 on the shell 1 covers the first mounting hole 211, the second mounting hole 212 and the third mounting hole 213 at the same time. The high-voltage connector 411 and the low-voltage connector 412 extend upward and extend out of the avoidance hole 13.

[0047] According to the battery pack 100 of the embodiment of the utility model, the high-voltage connector 411 and the low-voltage connector 412 extend upward and extend out of the avoidance hole 13. In this way, when the battery pack 100 is assembled with the power device from bottom to top, the high-voltage connector 411 and the low-voltage connector 412 can be automatically docked and installed with the ports on the power device, thereby saving assembly time and ensuring the consistency of assembly. In addition, during the transportation of the battery pack 100, the high-voltage connector 411 and the low-voltage connector 412 extending from the shell 1 from bottom to top are not prone to bumping and damage, which effectively reduces the maintenance cost. At the same time, the space occupied by the battery pack 100 is reduced, thereby reducing the transportation cost of the battery pack 100.

[0048] In a specific embodiment of the present invention, Figures 1 to 6 As shown, the connector assembly 4 also includes a protective seat 43, which is fixedly connected to the mounting plate body 21. The protective seat 43 is provided with a mounting groove 431 with an opening facing upward. The connector 41 is installed at the bottom of the mounting groove 431. The bottom of the mounting groove 431 is provided with a through hole, and the connecting harness 42 is connected to the connector 41 through the through hole.

[0049] In this specific embodiment, the protective cover can protect the safety of the connector 41 and prevent external foreign objects from contaminating or damaging the connector 41. At the same time, when the connector 41 is docked and installed with the port on the power device, the protective cover can also play an auxiliary positioning and guiding role to reduce the docking difficulty of the connector 41 and increase the assembly speed.

[0050] In a specific embodiment, for example Figure 2 and Figure 4 As shown, a flange is provided on the circumference of one side of the protective seat 43 facing the mounting bracket 2, and a plurality of first bolt holes are provided on the flange; a mounting boss protruding toward the protective seat 43 is provided on the mounting plate body 21, and a third mounting hole 213 and a plurality of second bolt holes corresponding to the plurality of first bolt holes are provided on the surface of the mounting boss, and the bolts pass through the first bolt holes and the second bolt holes to fix the protective seat 43 on the boss, and the boss plays a role in positioning the installation of the protective cover. At the same time, the boss can also effectively strengthen the structural strength of the mounting plate body 21 and improve the support of the mounting plate body 21.

[0051] Furthermore, the high-voltage connector 411 and the low-voltage connector 412 are both installed at the bottom of the mounting groove 431 of the protective seat 43, and the side walls of the mounting groove 431 are higher than the height of the high-voltage connector 411 and the low-voltage connector 412, so that the mounting groove 431 can effectively protect the high-voltage connector 411 and the low-voltage connector 412.

[0052] In one embodiment of the present invention, Figures 1 to 6As shown, the shell 1 includes an upper shell 111 and a lower shell 121, the avoidance hole 13 is arranged on the upper shell 111, and a connecting beam 5 is arranged on the bottom of the lower shell 121, the connecting beam 5 extends along the length direction or the width direction of the lower shell 121, and a first mounting portion is arranged on the connecting beam 5; the mounting bracket 2 also includes a supporting plate body 22, the supporting plate body 22 is arranged at the bottom of the mounting plate body 21, and a second mounting portion is arranged on the supporting plate body 22, and the first mounting portion and the second mounting portion cooperate to fix the mounting bracket 2 on the connecting beam 5.

[0053] In this embodiment, the connecting beam 5 is used to provide an installation point to facilitate the installation of the mounting bracket 2. At the same time, the connecting beam 5 can also strengthen the structural strength and rigidity of the lower shell 121; the support plate 22 is used to support the mounting plate 21 to ensure the stability of the mounting bracket 2.

[0054] In a specific embodiment, for example Figure 2 and Figure 3 As shown, there are multiple connecting beams 5, and the multiple connecting beams 5 all extend along the length direction of the lower shell 121, and are spaced apart along the width direction of the lower shell 121, and in the extending direction of the connecting beam 5, multiple first mounting portions are spaced apart on the connecting beam 5; there are multiple support plate bodies 22, and the multiple support bodies are spaced apart in the circumferential direction of the mounting plate body 21, and the support plate body 22 is an L-shaped plate body, and a second mounting portion is provided on the plate body extending laterally of the L-shaped plate body, and both the first mounting portion and the second mounting portion are bolt holes, and the support plate body 22 is bolted with the connecting beam 5 to fix the mounting bracket 2 on the connecting beam 5.

[0055] In a specific embodiment of the present invention, Figures 1 to 6 As shown, in the length direction of the connecting beam 5, one end of the connecting beam 5 is fixedly connected to the side wall of the lower shell 121. In this way, not only the structural strength and rigidity of the lower shell 121 can be improved, but also the connection strength between the connecting beam 5 and the lower shell 121 can be effectively improved, so that the installation of the connecting beam 5 is more stable and firm, and it is not easy to break or fall off, thereby ensuring the overall stability of the mounting bracket 2, and further making the connection between the liquid inlet pipe 311, the liquid outlet pipe 312, the high-pressure connector 411 and the low-pressure connector 412 and the port of the power device more stable.

[0056] In a specific embodiment of the present invention, Figures 1 to 6As shown, the upper shell 111 is provided with an avoidance groove 111 which is recessed toward the lower shell 121, and the avoidance hole 13 is provided at the bottom of the avoidance groove 111. In this specific embodiment, the setting of the avoidance groove 111 can not only provide sufficient avoidance space, but also guide the connection between the liquid inlet pipe 311, the liquid outlet pipe 312, the high-pressure connector 411 and the low-pressure connector 412 and the port of the power device to improve the assembly efficiency. At the same time, the sinking design of the avoidance groove 111 also enables the liquid inlet pipe 311, the liquid outlet pipe 312, the high-pressure connector 411 and the low-pressure connector 412 to extend out of the upper shell 111 without extending too much upward, which effectively reduces the manufacturing cost and assembly difficulty.

[0057] In a specific embodiment of the present invention, Figures 1 to 6 As shown, a plurality of first fixing holes 214 are arranged on the mounting plate body 21, and a plurality of second fixing holes corresponding to the plurality of first fixing holes 214 are arranged at the bottom of the avoidance groove 111. The fixing parts pass through the first fixing holes 214 and the second fixing holes to fix the mounting bracket 2 to the upper shell body 111. In this way, the assembly of the mounting bracket 2 can be made more secure.

[0058] In a specific embodiment of the present invention, Figures 1 to 6 As shown, a seal 6 is provided between the bottom of the avoidance groove 111 facing the side of the mounting plate 21 and the upper surface of the mounting plate 21, so that the fit between the bottom of the avoidance groove 111 and the mounting plate 21 can be made tighter, thereby effectively improving the overall sealing performance of the battery pack 100.

[0059] In one embodiment of the present invention, Figures 1 to 6 As shown, the battery pack 100 further includes: a baffle 7, which is fixedly connected to the housing 1, and is located in the circumferential direction of the avoidance hole 13, and the baffle 7 extends upward. In this embodiment, the baffle 7 blocks foreign matter in the external environment to prevent the foreign matter from contaminating or damaging the liquid inlet pipe 311, the liquid outlet pipe 312, the high-voltage connector 411, and the low-voltage connector 412.

[0060] In a specific embodiment, for example Figure 5 As shown, the first mounting hole 211, the second mounting hole 212 and the third mounting hole 213 are all spaced apart and arranged on the mounting plate body 21, and the three do not interfere with each other. At the same time, the area of ​​the mounting plate body 21 is much larger than the sum of the areas of the first mounting hole 211, the second mounting hole 212 and the third mounting hole 213. In this way, when the model of the liquid cooling tube 31 and / or the connector 41 changes, it is only necessary to change the corresponding aperture size of the first mounting hole 211, the second mounting hole 212, and the third mounting hole 213, thereby achieving matching changes at a lower cost and in a shorter period.

[0061] The utility model also provides a power device having the above embodiment.

[0062] According to the power device of the embodiment of the utility model, by providing the battery pack 100 of the above embodiment, the assembly speed and efficiency of the power device can be effectively improved.

[0063] Other structures and operations of the battery pack 100 and the power device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that: include: A shell, wherein an avoidance hole is provided on the upper surface of the shell; A mounting bracket, the mounting bracket is mounted in the housing, the mounting bracket comprises a mounting plate body, the mounting plate body is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole both extend in the up-down direction; A cooling assembly, wherein the cooling assembly is installed in the shell, the cooling assembly includes a liquid cooling plate and a liquid cooling pipe, the liquid cooling pipe includes a liquid inlet pipe and a liquid outlet pipe, one end of the liquid inlet pipe is connected to the liquid inlet of the liquid cooling plate, the other end of the liquid inlet pipe passes through the first mounting hole and the avoidance hole in sequence from bottom to top, and is fixedly connected to the mounting plate body, one end of the liquid outlet pipe is connected to the liquid outlet of the liquid cooling plate, the other end of the liquid outlet pipe passes through the second mounting hole and the avoidance hole in sequence from bottom to top, and is fixedly connected to the mounting plate body.

2. The battery pack according to claim 1, characterized in that: The mounting plate body is also provided with a third mounting hole, and the third mounting hole extends in the up-down direction; The battery pack also includes: a connector assembly, which is installed in the shell, and the connector assembly includes a connector and a connecting harness, the connector is installed on the mounting plate, the interface of the connector extends upward and passes through the avoidance hole, one end of the connecting harness is connected to the battery module, and the other end is connected to the connector through the third mounting hole from bottom to top.

3. The battery pack according to claim 2, characterized in that: The connector assembly also includes a protective seat, which is fixedly connected to the mounting plate body. The protective seat is provided with a mounting groove with an upward opening. The connector is installed at the bottom of the mounting groove. The bottom of the mounting groove is provided with a through hole. The connecting wire harness passes through the through hole and is connected to the connector.

4. The battery pack according to claim 1, characterized in that: The shell comprises an upper shell and a lower shell, the avoidance hole is arranged on the upper shell, a connecting beam is arranged on the bottom of the lower shell, the connecting beam extends along the length direction or the width direction of the lower shell, and a first mounting portion is arranged on the connecting beam; The mounting bracket also includes a support plate body, which is arranged at the bottom of the mounting plate body. A second mounting portion is arranged on the support plate body, and the first mounting portion cooperates with the second mounting portion to fix the mounting bracket on the connecting beam.

5. The battery pack according to claim 4, characterized in that: In the length direction of the connecting beam, one end of the connecting beam is fixedly connected to the side wall of the lower shell.

6. The battery pack according to claim 4, characterized in that: The upper shell is provided with an avoidance groove which is recessed toward the lower shell, and the avoidance hole is provided at the bottom of the avoidance groove.

7. The battery pack according to claim 6, characterized in that: A plurality of first fixing holes are arranged on the mounting plate body, a plurality of second fixing holes corresponding to the plurality of first fixing holes are arranged on the bottom of the avoidance groove, and a fixing member passes through the first fixing holes and the second fixing holes so that the mounting bracket is fixedly connected to the upper shell body.

8. The battery pack according to claim 7, characterized in that: A sealing member is arranged between a side of the bottom of the avoidance groove facing the mounting plate body and an upper surface of the mounting plate body.

9. The battery pack according to claim 1, characterized in that: Also includes: A baffle is fixedly connected to the shell, the baffle is located in the circumferential direction of the avoidance hole, and the baffle extends upward.

10. A power device, characterized in that: include: The battery pack according to any one of claims 1 to 9.

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