Battery pack and electric equipment

Abstract

The invention provides a battery pack and electric equipment, and the battery pack comprises a box body, a battery module, an acquisition module, a first high-voltage connector and a first acquisition line. The box body is provided with an installation cavity, the battery module is installed in the installation cavity, and the battery module is provided with a first total electrode. The acquisition module is mounted in the mounting cavity, the first high-voltage connector penetrates through the side wall of the box body and is electrically connected with the first total electrode, the first acquisition wire is arranged in the mounting cavity, one end of the first acquisition wire is connected with the first high-voltage connector, and the other end of the first acquisition wire is connected with the acquisition module. According to the battery pack provided by the invention, the technical problem that the working information of the high-voltage connector of the existing battery pack cannot be well mastered can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery pack and an electrical device. Background Art

[0002] The battery pack mainly transmits energy safely and reliably to various components in the vehicle system (such as motors, controllers, converters, etc.) through high-voltage connectors to achieve high-voltage and high-current transmission. In order to enable the battery pack to operate safely and efficiently, the relevant technology will use information collection modules to collect the voltage, current, temperature and other working information of the battery cells to better manage the charging and discharging of the battery cells. However, the voltage and current at the high-voltage connector are relatively large, and the existing battery pack cannot well grasp the voltage, current, temperature and other information at the high-voltage connector, and thus cannot timely discover potential safety issues. Summary of the invention

[0003] The embodiments of the present invention provide a battery pack and an electrical device, which can improve the technical problem that the existing battery pack cannot well grasp the working information at its high-voltage connector.

[0004] In a first aspect, an embodiment of the present invention provides a battery pack, the battery pack comprising a housing, a battery module, a collection module, a first high-voltage connector, and a first collection line. The housing is provided with an installation cavity, the battery module is installed in the installation cavity, and the battery module is provided with a first main electrode. The collection module is installed in the installation cavity, the first high-voltage connector is passed through the side wall of the housing and is electrically connected to the first main electrode, the first collection line is provided in the installation cavity, and one end of the first collection line is connected to the first high-voltage connector, and the other end is connected to the collection module.

[0005] In one embodiment, the battery pack further includes a first connection row, the first high-voltage connector is electrically connected to the first main electrode via the first connection row, and one end of the first acquisition line is connected to the first high-voltage connector via the first connection row.

[0006] In one embodiment, the first connection row is provided with a first connection portion and a first fixing portion, the first connection portion is electrically connected to the first high-voltage connector, the first fixing portion is connected to one side of the first connection portion, and one end of the first acquisition line is connected to the first fixing portion.

[0007] In one embodiment, the box body is further provided with an installation opening connected to the installation cavity, the first connecting portion extends along the height direction of the box body, and the first connecting portion has an upper side edge close to the installation opening, and the first fixing portion is connected to the upper side edge.

[0008] In one embodiment, a second high-voltage connector is further provided on the side wall of the box body, and the second high-voltage connector and the first high-voltage connector are spaced apart along the height direction of the box body, and the second high-voltage connector is closer to the installation opening than the first high-voltage connector; the first fixing portion extends toward one side of the first connecting portion along the width direction of the box body, and when the second high-voltage connector is projected toward the first fixing portion along the height direction of the box body, the first fixing portion is at least partially located outside the projection of the second high-voltage connector.

[0009] In one embodiment, the first fixing portion is provided with a first fixing hole for fixing the first collecting end, and when the second high-voltage connector is projected toward the first fixing portion along the height direction of the box body, the first fixing hole is located outside the projection of the second high-voltage connector.

[0010] In one embodiment, a maintenance plug is provided on the side wall of the box body, and the maintenance plug is located on one side of the first high-voltage connector along the width direction of the box body, and the first fixing portion extends along the width direction of the box body to a side away from the maintenance plug.

[0011] In one embodiment, one end of the first connection row is provided with the first connection portion and is electrically connected to the first high-voltage connector, and the other end is electrically connected to the maintenance plug; the battery pack also includes a third connection row, one end of the third connection row is electrically connected to the maintenance plug, and the other end is directly or indirectly electrically connected to the first main electrode.

[0012] In one embodiment, the side wall of the box body includes a fixed plate body and a removable plate body, the fixed plate body is penetrated by a mounting port connected to the mounting cavity, the removable plate body covers the mounting port and is detachably connected to the fixed plate body, the first high-voltage connector and the maintenance plug are passed through the removable plate body, and the second high-voltage connector is passed through the removable plate body or the fixed plate body.

[0013] In one embodiment, the detachable plate is also provided with a communication plug.

[0014] In one embodiment, the battery pack further includes a second connection row and a second collection line, the battery module is further provided with a second main electrode, the second connection row is arranged in the installation cavity and is electrically connected to the second high-voltage connector, and the second connection row is also electrically connected to the second main electrode, one end of the second collection line is connected to the second connection row, and the other end is connected to the collection module.

[0015] In one embodiment, the first high-voltage connector is provided with a first conductive column, the first conductive column is provided with a first connection hole for connecting the first connection part, and the first connection hole penetrates the first conductive column along the width direction of the box body; and / or, the second high-voltage connector is provided with a second conductive column, the second conductive column is provided with a second connection hole for connecting the second connection row, and the second connection hole penetrates the second conductive column along the height direction of the box body.

[0016] In a second aspect, an embodiment of the present invention provides an electrical device, wherein the electrical device comprises the battery pack described in any one of the above embodiments.

[0017] Beneficial effects of the embodiments of the present invention:

[0018] In an embodiment of the present invention, a first acquisition line is arranged in the battery pack, one end of the first acquisition line is connected to the high-voltage connector, and the other end is connected to the acquisition module, so that the acquisition module can collect information such as temperature, voltage or current of the first high-voltage connector through the first acquisition line, thereby ensuring that any abnormality at the first high-voltage connector can be discovered in time, thereby improving the safety of the battery pack.

[0019] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a simplified schematic diagram of an embodiment of a battery pack of the present application;

[0022] Figure 2 It is a partial structural schematic diagram of an embodiment of a battery pack of the present application;

[0023] Figure 3 yes Figure 3 A schematic diagram of a portion of the structure of the battery pack;

[0024] Figure 4 This is a partial structural exploded diagram of an embodiment of a battery pack of the present application;

[0025] Figure 5 It is a structural schematic diagram of an embodiment of the battery pack of the present application at the detachable plate body;

[0026] Figure 6It is a structural schematic diagram of another embodiment of the battery pack of the present application at the detachable plate body;

[0027] Figure 7 is a structural schematic diagram of an embodiment of a first connection row in a battery pack of the present application;

[0028] Figure 8 is a structural schematic diagram of an embodiment of a second connection row in a battery pack of the present application;

[0029] Fig. 9 It is a structural schematic diagram of another embodiment of the battery pack of the present application at the detachable plate body. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device.

[0031] In order to improve the technical problem that the collection line for collecting information of the high-voltage connector is inconvenient to install, thereby affecting the production efficiency, the first aspect of the present application is as follows: Figure 1 As shown, a battery pack 100 is provided. The battery pack 100 mainly includes a box body 10, a battery module 20, a collection module 30, a first high-voltage connector 40, a first connection row 50 and a first collection line 60.

[0032] Among them, it can be combined Figure 1 , Figure 2 and Figure 3 , Figure 2 It is a partial structural diagram of an embodiment of a battery pack 100 of the present application. Figure 3 yes Figure 2In the partial structural diagram, the box body 10 is provided with an installation cavity 11, the battery module 20 is installed in the installation cavity 11, and the battery module 20 is provided with a first total electrode 21. The acquisition module 30 is installed in the installation cavity 11, the first high-voltage connector 40 is penetrated on the side wall of the box body 10, the first connection row 50 is arranged in the installation cavity 11 and is electrically connected to the first high-voltage connector 40, and the first connection row 50 is also directly or indirectly electrically connected to the first total electrode 21. The first acquisition line 60 is arranged in the installation cavity 11, and one end of the first acquisition line 60 is connected to the first connection row 50, and the other end is connected to the acquisition module 30.

[0033] Specifically, in the present embodiment, the box 10 is a component for carrying and protecting the battery module 20. The outer shape of the box 10 is approximately a rectangular parallelepiped structure. An installation cavity 11 is formed in the box 10. The battery module 20 and other components (such as a battery management system, a thermal management system, etc.) are installed in the installation cavity 11. Generally, in order to make the box 10 have light weight, high strength, and corrosion resistance, the box 10 can be made of aluminum; in addition, the bottom plate, top cover, side plate, etc. of the box 10 can be provided with a heat dissipation structure (such as a heat dissipation channel) to improve the heat dissipation effect of the battery pack 100. In short, the specific structure of the box 10 can be flexibly set as needed, and no specific limitation is made here.

[0034] like Figure 2 and Figure 3 As shown, the battery module 20 is installed in the installation cavity 11 of the box body 10. The battery module 20 is mainly composed of multiple battery cells connected in series or in parallel. Specifically, each battery cell in the battery module 20 is provided with a positive electrode and a negative electrode. The positive electrodes of the multiple battery cells can be connected to form a total positive electrode of the battery module 20, and the negative electrodes of the multiple battery cells can be connected to form a total negative electrode of the battery module 20. Alternatively, the positive electrode of a battery cell is connected to the negative electrode of another battery cell one by one to realize the series connection of multiple battery cells. The positive electrodes at one end of the multiple battery cells connected in series form the total positive electrode of the battery module 20, and the negative electrodes at the other end form the total negative electrode of the battery module 20.

[0035] The battery module 20 realizes current output and input with the external load through the total positive electrode and the total negative electrode. In this embodiment, reference can be made to Figure 1 or Figure 2 The battery module 20 is provided with a first main electrode 21 and a second main electrode 22 , one of which is a main positive electrode and the other is a main negative electrode.

[0036] like Figure 1As shown, the acquisition module 30 is disposed in the installation cavity 11. In this embodiment, the acquisition module 30 can be a battery management system (i.e., BMS, Battery Management System), or a module in the battery management system specifically used to receive acquisition information, or a circuit module independent of the battery management system. In short, the specific structure of the acquisition module 30 can be flexibly set as needed, as long as the acquisition module 30 can receive the information transmitted by the acquisition line and perform corresponding processing and feedback.

[0037] like Figure 1 As shown, the first high-voltage connector 40 is penetrated on the side wall of the box body 10. Specifically, in the present embodiment, corresponding to the first main electrode 21 and the second main electrode 22 of the battery module 20, the first high-voltage connector 40 and the second high-voltage connector 70 are penetrated on the side wall of the box body 10. The first high-voltage connector 40 is directly or indirectly electrically connected to the first main electrode 21, and the second high-voltage connector 70 is directly or indirectly electrically connected to the second main electrode 22.

[0038] The external load is electrically connected to the battery pack 100 through the first high-voltage connector 40 and the second high-voltage connector 70. For example, when the battery pack 100 is used in a car, the motor, controller, converter and other components in the vehicle system transmit energy to the battery pack 100 through the first high-voltage connector 40 and the second high-voltage connector 70.

[0039] In this embodiment, if Figure 1 or Figure 4 As shown, the first high-voltage connector 40 is indirectly electrically connected to the first main electrode 21 of the battery module 20. Specifically, the battery pack 100 of the present application also includes a first connection bar 50, which is a high-voltage copper bar. The first connection bar 50 is arranged in the installation cavity 11 and is electrically connected to the first high-voltage connector 40. The first connection bar 50 is also directly or indirectly electrically connected to the first main electrode 21, so that the electrical connection between the first high-voltage connector 40 and the first main electrode 21 can be achieved.

[0040] It should be noted that the first connection row 50 can be directly connected to the first main electrode 21 of the battery module 20, or it can be electrically connected to the first main electrode 21 through an intermediate conductive member. For example, in one embodiment, the first connection row 50 is connected between the first high-voltage connector 40 and the fuse 140, and between the fuse 140 and the first main electrode 21. In this way, it can not only achieve electrical connection between the first high-voltage connector 40 and the first main electrode 21, but also disconnect the current loop between the first high-voltage connector 40 and the first main electrode 21 through the fuse 140 when the current is too large.

[0041] Crucially, in the present application, one end of the first acquisition line 60 is connected to the first high-voltage connector 40, and the other end is connected to the acquisition module 30. Specifically, the first acquisition line 60 can be used to collect any one or more of voltage, current, and temperature, and then the acquisition module 30 can collect relevant information of the first high-voltage connector 40 through the first acquisition line 60, ensuring that abnormalities at the first high-voltage connector can be discovered in time, thereby improving the safety of the battery pack.

[0042] It should be noted here that because the first high-voltage connector 40 is embedded in the side wall of the box body 10, the part of the first high-voltage connector 40 located inside the box body 10 needs to be electrically connected to the total electrode of the battery module. When the space inside the box body 10 is relatively cramped and there are other components obstructing it, the installation process of connecting the first acquisition line 60 to the high-voltage connector may not be convenient enough, resulting in affecting production efficiency.

[0043] Therefore, in view of the above technical problems, in one embodiment, Figure 1 or Figure 3 As shown, the first acquisition line 60 is arranged in the installation cavity 11, and one end of the first acquisition line 60 is connected to the first connection row 50, and the other end is connected to the acquisition module 30. Because the first connection row 50 is electrically connected to the first high-voltage connector 40, the voltage, current, temperature and other information on the first connection row 50 is basically equal to the voltage, current, temperature and other information on the first high-voltage connector 40, and thus the voltage, current, temperature and other information of the first high-voltage connector 40 can be detected and acquired.

[0044] It should be noted here that the first connection row 50 and the first high-voltage connector 40, and the collection line and the first connection row 50 can be connected by threaded connectors, welding, interference fit, etc. The specific connection method can be flexibly selected according to needs.

[0045] It can be understood that the present application realizes the electrical connection between the first high-voltage connector 40 and the first main electrode 21 by conductively connecting the first connection row 50 to the first high-voltage connector 40 and electrically connecting the first connection row 50 to the first main electrode 21 of the battery module 20. Then one end of the first acquisition line 60 is connected to the first connection row 50, and the other end is connected to the acquisition module 30. Because the first connection row 50 is electrically connected to the first high-voltage connector 40, the first acquisition line 60 can collect information such as temperature, voltage or current of the first high-voltage connector 40 through the first connection row 50, and transmit the information of the first high-voltage connector 40 to the acquisition module 30.

[0046] It can also be understood that, because one end of the first acquisition line 60 is not directly connected to the first high-voltage connector 40, but is connected to the first connection row 50 electrically connected to the first high-voltage connector 40, it is possible to ensure that the information of the first high-voltage connector 40 can be collected, thereby making the connection and installation of the first acquisition line 60 more convenient, thereby improving production efficiency, and effectively solving the technical problem that the acquisition line for collecting information from the high-voltage connector is inconvenient to install, thereby affecting production efficiency.

[0047] Optionally, in one embodiment, as Figure 6 or Figure 7 As shown, the first connection row 50 is provided with a first connection portion 51 and a first fixing portion 52 . The first connection portion 51 is electrically connected to the first high-voltage connector 40 . The first fixing portion 52 is connected to one side of the first connection portion 51 . One end of the first acquisition line 60 is connected to the first fixing portion 52 .

[0048] Specifically, in this embodiment, if Figure 7 As shown, a section of the plate at the end of the first connection row 50 constitutes a first connection portion 51. Figure 5 As shown, the first high voltage connector 40 is provided with a first conductive column 41. Figure 6 As shown, the first connection part 51 is electrically and fixedly connected to the first conductive column 41. The first fixing part 52 is also a plate-shaped structure, and the first fixing part 52 is connected to one side of the first connection part 51, and one end of the first collection line 60 is fixedly connected to the first fixing part 52.

[0049] It can be understood that the first connection row 50 in the present embodiment is electrically connected to the first high-voltage connector 40 through the first connection portion 51, and the first fixing portion 52 for connecting to the first acquisition line 60 is connected to one side of the first connection portion 51, so that the connection position of the first acquisition line 60 on the first connection row 50 can be closer to the first high-voltage connector 40, thereby ensuring that the collected information is closer to the real information of the first high-voltage connector 40, and avoiding the situation where the connection position of the first acquisition line 60 on the first connection row 50 is too far from the first high-voltage connector 40, resulting in a large deviation in the collected information.

[0050] Optionally, in one embodiment, as Figure 4 As shown, the box body 10 is also provided with an installation opening 12 communicating with the installation cavity 11. Figure 7 The first connection portion 51 extends along the height direction of the box body 10 , and the first connection portion 51 has an upper side edge 511 close to the installation opening 12 , and the first fixing portion 52 is connected to the upper side edge 511 .

[0051] For details, please refer to Figure 3 and Figure 4On the basis that the first connection row 50 is already located in the installation cavity 11 and connected to the first high-voltage connector 40, the first acquisition line 60 needs to enter the installation cavity 11 through the installation opening 12 and be connected to the first fixing portion 52. Figure 7 and Figure 4 It is understood that the first connection portion 51 extends vertically along the height direction of the box body 10, and at this time, the first connection portion 51 has an upper side edge 511 close to the installation opening 12, and the first fixing portion 52 for fixing the first acquisition line 60 is connected to the upper side edge 511. It is understood that when the first fixing portion 52 is connected to the upper side edge 511 of the first connection portion 51, it will be closer to the installation opening 12, so that the depth of the first fixing portion 52 in the installation cavity 11 will not be too deep, thereby improving the installation convenience of the first acquisition line 60.

[0052] It should be noted that in order to make the first connecting portion 51 extend vertically along the height direction of the box body 10, as shown in FIG. Figure 5 As shown, the first conductive column 41 is provided with a first connection hole 411, and the first connection hole 411 penetrates the first conductive column 41 along the width direction of the box body 10. Figure 7 As shown, the first connecting portion 51 is provided with a third connecting hole 512. Figure 6 During assembly, the third connection hole 512 is set corresponding to the first connection hole 411, and then the threaded connector is passed through the third connection hole 512 and the first connection hole 411 to press the first connection part 51 onto the first conductive column 41 through the threaded connector. In this way, the electrical connection between the first connection row 50 and the first high-voltage connector 40 can be achieved, and the first connection part 51 can be vertically extended along the height direction of the box body 10.

[0053] Optionally, in one embodiment, as Figure 6 As shown, a second high-voltage connector 70 is also provided on the side wall of the box body 10, and the second high-voltage connector 70 and the first high-voltage connector 40 are arranged at intervals along the height direction of the box body 10, and the second high-voltage connector 70 is closer to the installation opening 12 than the first high-voltage connector 40. The first fixing portion 52 extends toward one side of the first connecting portion 51 along the width direction of the box body 10, and when the second high-voltage connector 70 is projected toward the first fixing portion 52 along the height direction of the box body 10, the first fixing portion 52 is at least partially located outside the projection of the second high-voltage connector 70.

[0054] Specifically, in this embodiment, reference may be made to Figure 1 and Figure 6The second high-voltage connector 70 is used to be directly or indirectly electrically connected to the second main electrode 22 of the battery module 20, and the second high-voltage connector 70 is located directly above the first high-voltage connector 40 along the height direction of the box body 10, that is, the second high-voltage connector 70 is closer to the installation opening 12 than the first high-voltage connector 40. Because of this, the second high-voltage connector 70 may block the first fixing portion 52, thereby affecting the fixing of the first acquisition line 60 to the first fixing portion 52.

[0055] Therefore, in this embodiment, the first fixing portion 52 extends toward one side of the first connecting portion 51 along the width direction of the box body 10. Specifically, taking the width direction of the box body 10 as the left-right direction as an example, the first fixing portion 52 can extend from the first connecting portion 51 to the right side of the first connecting portion 51, or can extend from the first connecting portion 51 to the left side of the first connecting portion 51. And in this embodiment, when the second high-voltage connector 70 is projected toward the first fixing portion 52 along the height direction of the box body 10, the first fixing portion 52 is at least partially located outside the projection of the second high-voltage connector 70. In other words, the first fixing portion 52 is at least partially not blocked by the second high-voltage connector 70, and one end of the first acquisition line 60 can be fixed at a position on the first fixing portion 52 that is not blocked by the second high-voltage connector 70, thereby facilitating the installation of the first acquisition line 60.

[0056] Optionally, in one embodiment, as Figure 7 As shown, the first fixing portion 52 is provided with a first fixing hole 521 for fixing the first collecting end. Figure 6 When the second high-voltage connector 70 is projected toward the first fixing portion 52 along the height direction of the box body 10 , the first fixing hole 521 is located outside the projection of the second high-voltage connector 70 .

[0057] Specifically, in this example, Fig. 9 As shown, one end of the first acquisition line 60 used for connecting to the first fixing part 52 is an OT terminal and has a third fixing hole 61. During assembly, the OT terminal is first placed on the first fixing part 52, and the third fixing hole 61 is correspondingly connected to the first fixing hole 521. Then, the threaded connector is passed through the third fixing hole 61 and the first fixing hole 521 to press the OT terminal onto the first fixing part 52 through the threaded connector, thereby achieving a fixed connection of one end of the first acquisition line 60 on the first fixing part 52.

[0058] In order to ensure that the threaded connector will not be blocked by the second high-pressure connector 70 during assembly, in this embodiment, reference can be made to Figure 6When the second high-voltage connector 70 is projected toward the first fixing portion 52 along the height direction of the box body 10, the first fixing hole 521 is located outside the projection of the second high-voltage connector 70, that is, the first fixing hole 521 will not be completely blocked by the second high-voltage connector 70, making it convenient for the threaded connector to fix one end of the first acquisition line 60 to the first fixing portion 52.

[0059] Optionally, in one embodiment, as Figure 6 As shown, a maintenance plug 80 is also provided on the side wall of the box body 10 . The maintenance plug 80 is located on one side of the first high-voltage connector 40 along the width direction of the box body 10 . The first fixing portion 52 extends along the width direction of the box body 10 away from the maintenance plug 80 .

[0060] Specifically, in this embodiment, the maintenance plug 80 is a manual service disconnect device (i.e., Manual Service Disconnect, MSD for short). The manual service plug 80 is a special switch, whose main function is to quickly disconnect the high-voltage circuit by manual operation in the case of vehicle maintenance or emergency, so as to ensure the personal safety of maintenance personnel and prevent the high-voltage current from damaging other parts of the vehicle. The manual service plug 80 not only has the function of electrical isolation, but also can quickly cut off the high-voltage circuit in the event of a sudden short circuit, thus playing the role of short circuit protection.

[0061] The maintenance plug 80 is usually embedded in the side wall of the box 10, and the maintenance plug 80 is partially exposed outside the box 10 for manual operation. The maintenance plug 80 is also partially located in the installation cavity 11 and connected to the high-voltage circuit of the battery pack 100. In this embodiment, the maintenance plug 80 is located on one side of the first high-voltage connector 40 along the width direction of the box 10. On this basis, in order to prevent the maintenance plug 80 from affecting the installation of the first acquisition line 60 on the first fixing portion 52, in this embodiment, the first fixing portion 52 extends along the width direction of the box 10 to the side away from the maintenance plug 80, so that when one end of the first acquisition line 60 is fixed to the first fixing portion 52, it can be free from the obstruction of the maintenance plug 80, thereby facilitating the installation of the first acquisition line 60.

[0062] It should be noted that in this embodiment, the maintenance plug 80 can be connected to the loop between the first high-voltage connector 40 and the first main electrode 21, or can be connected to the loop between the second high-voltage connector 70 and the second main electrode 22. The specific connection position of the maintenance plug 80 can be flexibly selected.

[0063] For example, optionally, in one embodiment, Figure 1 and Figure 6As shown, one end of the first connection bar 50 is provided with a first connection portion 51 and is electrically connected to the first high-voltage connector 40, and the other end is electrically connected to the maintenance plug 80. The battery pack 100 also includes a third connection bar 90, which is also a high-voltage copper bar. One end of the third connection bar 90 is electrically connected to the maintenance plug 80, and the other end is directly or indirectly electrically connected to the first main electrode 21. In this way, the maintenance plug 80 is connected to the circuit between the first high-voltage connector 40 and the first main electrode 21, and then the high-voltage circuit between the first high-voltage connector 40 and the first main electrode 21 can be disconnected through the maintenance plug 80 in maintenance or emergency situations.

[0064] It should be noted that the third connection row 90 may be directly electrically connected to the first main electrode 21, or may be indirectly electrically connected to the first main electrode 21 via an intermediate conductive member. For example, in one embodiment, Figure 1 As shown, the battery pack 100 also includes a fuse 140, which is connected between the third connection row 90 and the first main electrode 21. This can achieve electrical connection between the first third connection row 90 and the first main electrode 21, and when the current is too large, the high-voltage circuit between the first high-voltage connector 40 and the first main electrode 21 can be automatically disconnected by the fuse 140.

[0065] Optionally, in one embodiment, as Figure 4 As shown, one side wall of the box body 10 includes a fixed plate body 13 and a removable plate body 14. The fixed plate body 13 is penetrated with an installation port 15 connected to the installation cavity 11. The removable plate body 14 covers the installation port 15 and is detachably connected to the fixed plate body 13. The first high-voltage connector 40 and the maintenance plug 80 are passed through the removable plate body 14, and the second high-voltage connector 70 is passed through the removable plate body 14 or the fixed plate body 13.

[0066] Specifically, in this example, Figure 6 As shown, the first connection row 50 is connected to the first high-pressure connector 40 through a first threaded connector 150. Figure 6 In the embodiment, the first threaded connector 150 is a bolt, and during assembly, the first threaded connector 150 needs to be screwed onto the first connecting portion 51 and the first high-voltage connector 40 from a side of the first connecting portion 51 away from the maintenance plug 80 .

[0067] The first connection row 50 is also fixed to the maintenance plug 80 via a second threaded connection member 160. Figure 6 In the embodiment, the second threaded connector 160 is a nut, and during assembly, the second threaded connector 160 needs to press the first connection row 50 onto the maintenance plug 80 from the side of the first connection row 50 close to the battery module 20 .

[0068] One end of the third connection row 90 is fixed to the maintenance plug 80 through a third threaded connection member 170. Figure 6 In the embodiment, the third threaded connector 170 is a nut, and during assembly, the third threaded connector 170 needs to press the third connection row 90 onto the maintenance plug 80 from the side of the third connection row 90 close to the battery module 20 .

[0069] Please refer to Figure 3 ,exist Figure 3 In the embodiment, if the first threaded connector 150, the second threaded connector 160 and the third threaded connector 170 are all assembled in the installation cavity 11, the first threaded connector 150 will be inconvenient to assemble due to the obstruction of the side wall of the box body 10, and the second threaded connector 160 and the third threaded connector 170 will be inconvenient to assemble due to the obstruction of the battery module 20.

[0070] Therefore, in order to improve the convenience of assembly, Figure 4 As shown, in this embodiment, the side wall of the box body 10 includes a fixed plate body 13 and a removable plate body 14. The fixed plate body 13 is penetrated with a mounting port 15 connected to the mounting cavity 11. The removable plate body 14 covers the mounting port 15 and is detachably connected to the fixed plate body 13. The first high-voltage connector 40 and the maintenance plug 80 are passed through the removable plate body 14.

[0071] Therefore, during assembly, the removable plate body 14 can be first removed from the fixed plate body 13, and then the first connection row 50 can be fixed to the removable plate body 14 through the first threaded connector 150 and the second threaded connector 160, and the third connection row 90 can be fixed to the removable plate body 14 through the third threaded connector 170. At this time, because the removable plate body 14 is not fixed to the fixed plate body 13, the first threaded connector 150, the second threaded connector 160 and the third threaded connector 170 can be assembled without any obstacles, and the assembly is more convenient. Finally, the removable plate body 14 with the first connection row 50 and the second connection row 120 fixed thereto is installed on the fixed plate body 13, so that the first connection row 50 and the third connection row 90 can be fixed in the installation cavity 11, which greatly improves the convenience of assembling the first connection row 50 and the third connection row 90.

[0072] It should be noted here that the second high-voltage connector 70 can be inserted into the removable plate body 14 or the fixed plate body 13. Because the second high-voltage connector 70 is closer to the installation opening 12, the second connection row 120 can be conveniently connected to the second high-voltage connector 70 regardless of whether the second high-voltage connector 70 is inserted into the removable plate body 14 or the fixed plate body 13.

[0073] In one embodiment, if Figure 4As shown, the second high-voltage connector 70 is passed through the detachable plate 14 . During assembly, the detachable plate 14 is first fixed to the fixed plate 13 , and then the second connection row 120 is connected between the second high-voltage connector 70 and the second main electrode 22 .

[0074] Optionally, in one embodiment, as Figure 4 As shown, a communication plug 110 is also provided on the detachable plate 14. Specifically, in order to realize the communication between the battery pack 100 and key equipment such as the vehicle controller and the charger, the battery pack 100 is usually further provided with a communication plug 110, and the battery pack 100 realizes the communication with key equipment such as the vehicle controller and the charger through the communication plug 110. The communication plug 110 is usually provided on the side wall of the box body 10, but in this embodiment, the communication plug 110 is provided on the detachable plate 14, so that the communication plug 110 can be removed along with the detachable plate 14, thereby facilitating the disassembly and maintenance of the communication plug 110.

[0075] Optionally, in one embodiment, as Fig. 9 As shown, the battery pack 100 further includes a second connection row 120 and a second acquisition line 130. Figure 1 As shown, the battery module 20 is further provided with a second main electrode 22, one of the first main electrode 21 and the second main electrode 22 is a main positive electrode, and the other is a main negative electrode. Figure 3 and Fig. 9 The second connection bar 120 is arranged in the installation cavity 11 and is electrically connected to the second high-voltage connector 70, and the second connection bar 120 is also electrically connected to the second main electrode 22, so that the electrical connection between the second high-voltage connector 70 and the second main electrode 22 can be achieved. One end of the second acquisition line 130 is connected to the second connection bar 120, and the other end is connected to the acquisition module 30, so that the acquisition module 30 can collect information such as voltage, current, temperature, etc. on the second connection bar 120 through the second acquisition line 130, and because the second connection bar 120 is electrically connected to the second high-voltage connector 70, the voltage, current, temperature, etc. information on the second connection bar 120 is substantially equal to the voltage, current, temperature, etc. information on the second high-voltage connector 70, so that the voltage, current, temperature, etc. information of the second high-voltage connector 70 can be detected and collected.

[0076] That is, in this embodiment, the acquisition module 30 detects and collects information such as voltage, current, and temperature of the first high-voltage connector 40 and the second high-voltage connector 70 of the battery pack 100, so that the information of each high-voltage connector can be better monitored, and the battery pack 100 can be better controlled to achieve safer and more efficient operation.

[0077] Optionally, in one embodiment, as Figure 8As shown, the second connection row 120 is provided with a second connection portion 121 and a second fixing portion 122, the second connection portion 121 is connected to a side of the second high-voltage connector 70 close to the mounting opening 12, the second fixing portion 122 is connected to one side of the second connection portion 121, and one end of the second collection line 130 is connected to the second connection portion 121.

[0078] Specifically, in this embodiment, a section of the plate at the end of the second connection row 120 constitutes the second connection portion 121. Figure 5 or Figure 6 As shown, the second high-voltage connector 70 is provided with a second conductive column 71, and the second connecting portion 121 is electrically and fixedly connected to the second conductive column 71. The second fixing portion 122 is also a plate-shaped structure, and the second fixing portion 122 is connected to one side of the second connecting portion 121, and one end of the second acquisition line 130 is fixedly connected to the second fixing portion 122.

[0079] It can be understood that in this embodiment, the second connection row 120 is electrically connected to the second high-voltage connector 70 through the second connection portion 121, and the second fixing portion 122 used to connect to the second acquisition line 130 is connected to one side of the second connection portion 121, so that the connection position of the second acquisition line 130 on the second connection row 120 can be closer to the second high-voltage connector 70, thereby ensuring that the collected information is closer to the real information of the second high-voltage connector 70, and avoiding the situation where the connection position of the second acquisition line 130 on the second connection row 120 is too far from the second high-voltage connector 70, resulting in a large deviation in the collected information.

[0080] Optionally, in one embodiment, as Figure 5 As shown, the first high voltage connector 40 is provided with a first conductive column 41, and the first conductive column 41 is provided with a first connection hole 411 for connecting the first connection portion 51, and the first connection hole 411 passes through the first conductive column 41 along the width direction of the box body 10. Specifically, in this embodiment, as Figure 7 As shown, the first connecting portion 51 is provided with a third connecting hole 512. Figure 6 During assembly, the first connection portion 51 is placed on one side of the first conductive column 41 along the axial direction of the first connection hole 411, and the third connection hole 512 and the first connection hole 411 are connected to each other, and then the threaded connection piece is passed through the third connection hole 512 and the first connection hole 411 in sequence, so that the threaded connection piece presses the first connection portion 51 on one side of the first conductive column 41.

[0081] It can be understood that because the first connecting hole 411 extends along the width direction of the box body 10, when the first connecting part 51 is fixed to the first conductive column 41, the threaded connection can be screwed to the first connecting part 51 and the first conductive column 41 along the width direction of the box body 10, and will not be affected by the second high-voltage connector 70, thereby facilitating the assembly of the first connecting row 50.

[0082] Optionally, in one embodiment, as Figure 5 As shown, the second high voltage connector 70 is provided with a second conductive column 71, and the second conductive column 71 is provided with a second connection hole 711 for connecting the second connection portion 121, and the second connection hole 711 passes through the second conductive column 71 along the height direction of the box body 10. Specifically, in this embodiment, as Figure 8 As shown, the second connecting portion 121 is provided with a fourth connecting hole 1211. Fig. 9 During assembly, the second connection portion 121 is placed above the second conductive column 71 along the axial direction of the second connection hole 711, and the fourth connection hole 1211 is connected to the second connection hole 711 accordingly, and then the threaded connection piece is passed through the fourth connection hole 1211 and the second connection hole 711 in sequence, so that the threaded connection piece presses the second connection portion 121 onto the second conductive column 71.

[0083] It can be understood that because the second high-voltage connector 70 is relatively close to the installation opening 12 of the box body 10, when the second connection hole 711 is extended along the height direction of the box body 10, the assembler can screw the threaded connector onto the second connection part 121 and the second conductive column 71 from top to bottom, thereby making it easier to assemble the second connection row 120.

[0084] Optionally, in one embodiment, as Figure 8 As shown, the second fixing portion 122 is provided with a second fixing hole 1221. Fig. 9 As shown, one end of the second acquisition line 130 used for connecting with the first fixing part 52 is an OT terminal and has a fourth fixing hole 131. During assembly, the OT terminal is first placed on the second fixing part 122, and the fourth fixing hole 131 is correspondingly connected to the first fixing hole 521, and then the threaded connector is passed through the fourth fixing hole 131 and the second fixing hole 1221 to press the OT terminal onto the second fixing part 122 through the threaded connector, thereby achieving a fixed connection of one end of the second acquisition line 130 on the second fixing part 122.

[0085] The embodiment of the present application also provides an electrical device, which includes a battery pack 100. The specific structure of the battery pack 100 refers to the above embodiment. Since the electrical device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0086] Among them, electrical equipment can be automobiles, ships, industrial equipment, household appliances, etc.

[0087] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A battery pack, characterized in that: include: The box body is provided with a mounting cavity; A battery module is installed in the installation cavity, and the battery module is provided with a first main electrode; A collection module is installed in the installation cavity; A first high-voltage connector is disposed on the side wall of the box body and is electrically connected to the first main electrode; and The first acquisition line is arranged in the installation cavity, and one end of the first acquisition line is connected to the first high-voltage connector, and the other end of the first acquisition line is connected to the acquisition module.

2. The battery pack according to claim 1, characterized in that: The battery pack further includes a first connection row, the first high-voltage connector is electrically connected to the first main electrode via the first connection row, and one end of the first acquisition line is connected to the first high-voltage connector via the first connection row.

3. The battery pack according to claim 2, characterized in that: The first connection row is provided with a first connection portion and a first fixing portion, the first connection portion is electrically connected to the first high-voltage connector, the first fixing portion is connected to one side of the first connection portion, and one end of the first acquisition line is connected to the first fixing portion.

4. The battery pack according to claim 3, characterized in that: The box body is further provided with an installation opening communicating with the installation cavity, the first connection portion extends along the height direction of the box body, and the first connection portion has an upper side edge close to the installation opening, and the first fixing portion is connected to the upper side edge.

5. The battery pack according to claim 4, characterized in that: A second high-voltage connector is also provided on the side wall of the box body, and the second high-voltage connector and the first high-voltage connector are spaced apart in the height direction of the box body, and the second high-voltage connector is closer to the installation opening than the first high-voltage connector; the first fixing portion extends toward one side of the first connecting portion along the width direction of the box body, and when the second high-voltage connector is projected toward the first fixing portion along the height direction of the box body, the first fixing portion is at least partially located outside the projection of the second high-voltage connector.

6. The battery pack according to claim 5, characterized in that: The first fixing portion is provided with a first fixing hole for fixing the first acquisition line, and when the second high-voltage connector is projected toward the first fixing portion along the height direction of the box, the first fixing hole is located outside the projection of the second high-voltage connector.

7. The battery pack according to claim 5, characterized in that: A maintenance plug is also provided on the side wall of the box body. The maintenance plug is located on one side of the first high-voltage connector along the width direction of the box body. The first fixing portion extends along the width direction of the box body toward a side away from the maintenance plug.

8. The battery pack according to claim 7, characterized in that: One end of the first connection row is provided with the first connection portion and is electrically connected to the first high-voltage connector, and the other end is electrically connected to the maintenance plug; the battery pack also includes a third connection row, one end of the third connection row is electrically connected to the maintenance plug, and the other end is directly or indirectly electrically connected to the first main electrode.

9. The battery pack according to claim 7, characterized in that: The side wall of the box body includes a fixed plate body and a removable plate body, the fixed plate body is penetrated with an installation port connected to the installation cavity, the removable plate body covers the installation port and is detachably connected to the fixed plate body, the first high-voltage connector and the maintenance plug are passed through the removable plate body, and the second high-voltage connector is passed through the removable plate body or the fixed plate body.

10. The battery pack according to claim 9, characterized in that: The detachable plate body is also provided with a communication plug.

11. The battery pack according to any one of claims 5 to 10, characterized in that: The battery pack also includes a second connection row and a second collection line. The battery module is also provided with a second main electrode. The second connection row is arranged in the installation cavity and is electrically connected to the second high-voltage connector, and the second connection row is also electrically connected to the second main electrode. One end of the second collection line is connected to the second connection row, and the other end is connected to the collection module.

12. The battery pack according to claim 11, characterized in that: The first high-voltage connector is provided with a first conductive column, the first conductive column is provided with a first connecting hole for connecting the first connecting portion, and the first connecting hole penetrates the first conductive column along the width direction of the box body; And / or, the second high-voltage connector is provided with a second conductive column, the second conductive column is provided with a second connection hole for connecting the second connection row, and the second connection hole penetrates the second conductive column along the height direction of the box body.

13. An electrical equipment, characterized in that: Comprising a battery pack as described in any one of claims 1-12.

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