Connector and power battery

Abstract

The utility model provides a connector, which comprises a high-voltage line connecting shell, two opposite ends of which are respectively provided with a first high-voltage connecting site for connecting a high-voltage line of a power supply module and a second high-voltage connecting site for connecting a high-voltage line of an electrical module; the low-voltage line connecting shell is arranged opposite to the high-voltage line connecting shell, and the two opposite ends of the low-voltage line connecting shell are provided with a first low-voltage connecting site used for being connected with a low-voltage line of a power module and a second low-voltage connecting site used for being connected with an electrical module respectively; the high-voltage connecting circuit and the low-voltage connecting circuit pass through a circuit path between the high-voltage wire connecting shell and the low-voltage wire connecting shell, and the high-voltage connecting circuit is used for connecting the first high-voltage connecting site and the second high-voltage connecting site; the low-voltage connection circuit is used for connecting the first low-voltage connection site and the second low-voltage connection site; the connector integrates high-voltage and low-voltage wiring, and the circuit is directly connected with the connector, so that the space in the power battery is saved.

Description

Technical Field

[0001] The present application relates to the technical field of battery connectors, and particularly to a connector and a power battery. Background Art

[0002] Both the power supply module and the electrical module in the power battery are high-voltage modules. The common connection method for the lines between the power supply module and the electrical module is quick plug connection of the connectors, that is, the low-voltage lines of the power supply module and the low-voltage lines of the electrical module are inserted into the same low-voltage line connector through plugs to achieve the connection of the low-voltage lines, and the high-voltage lines of the power supply module and the high-voltage lines of the electrical module are inserted into the same high-voltage line connector through plugs to achieve the connection of the high-voltage lines. Therefore, to achieve the connection between the power supply module and the electrical module, at least two connectors are required. If the lines are complex, more connectors are needed for connection. On the one hand, multiple connectors occupy a large space in the power battery. On the other hand, multiple plugs are connected to both the high-voltage connector and the low-voltage connector, further occupying the space inside the power battery, thereby reducing the space utilization rate of the power battery. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide a connector and a power battery to solve the problem that the connectors and plugs between the power supply module and the electrical module in the existing power battery occupy a large area.

[0004] Based on the above purpose, the present application provides a connector,

[0005] including:

[0006] A high-voltage line connection shell, with a first high-voltage connection site for connecting the high-voltage line of the power supply module and a second high-voltage connection site for connecting the high-voltage line of the electrical module respectively provided at its opposite ends;

[0007] A low-voltage line connection shell, arranged opposite to the high-voltage line connection shell, with a first low-voltage connection site for connecting the low-voltage line of the power supply module and a second low-voltage connection site for connecting the electrical module respectively provided at its opposite ends;

[0008] A high-voltage connection circuit and a low-voltage connection circuit, both passing through the circuit path between the high-voltage line connection shell and the low-voltage line connection shell. The high-voltage connection circuit is used to connect the first high-voltage connection site and the second high-voltage connection site; the low-voltage connection circuit is used to connect the first low-voltage connection site and the second low-voltage connection site.

[0009] Optionally, the projection of the outer contour of the high-voltage line connection shell onto the low-voltage line connection shell at least partially coincides with the area formed by the outer contour of the low-voltage line connection shell.

[0010] Optionally, multiple first mounting positions and multiple second mounting positions are respectively provided at opposite ends of the high-voltage wire connection housing. The first mounting positions are used to connect the first high-voltage connection points, and the second mounting positions are used to connect the second high-voltage connection points. Insulation is provided between adjacent two of the first mounting positions and between adjacent two of the second mounting positions.

[0011] Optionally, a first mounting groove is opened downward at one end of the high-voltage wire connection housing where the second mounting positions are provided, and multiple second mounting positions are arranged side by side in the first mounting groove.

[0012] Optionally, a first isolation frame is provided between adjacent first mounting positions, and the first isolation frame is arranged on the side wall of the high-voltage wire connection housing; a second isolation frame is provided between adjacent second mounting positions, and the second isolation frame is installed in the first mounting groove.

[0013] Optionally, the high-voltage connection circuit is multiple high-voltage copper bars. After each high-voltage copper bar passes through the circuit path, its two ends extend to the first mounting position and the second mounting position, and form the first high-voltage connection point and the second high-voltage connection point.

[0014] Optionally, the low-voltage wire connection housing includes an insulating bottom plate and a side insulating frame. The side insulating frame is located on one side of the insulating bottom plate. A first low-voltage wire socket is provided on the side of the insulating bottom plate away from the side insulating frame, and a first low-voltage connection point is provided in the first low-voltage wire socket; a second low-voltage wire socket is provided at the top of the side insulating frame, and a second low-voltage connection point is provided in the second low-voltage wire socket.

[0015] Optionally, the low-voltage connection circuit is a flexible circuit. After the flexible circuit passes through the circuit path, its two ends extend to the first low-voltage connection point and the second low-voltage connection point.

[0016] Optionally, the side insulating frame includes a connected frame part and a connecting bottom plate. The connecting bottom plate is opposite to the insulating bottom plate and is spliced. An insertion interface is provided between the frame part and the connecting bottom plate. One end of the high-voltage wire connection housing where the second high-voltage connection point is located is inserted into the insertion interface. The second high-voltage connection point is located below the frame part, and the projection of the first high-voltage connection point on the low-voltage wire connection housing is located between the first low-voltage wire socket and the second low-voltage wire socket.

[0017] Optionally, a connecting member is provided between the second high-voltage connection point and the bottom of the first mounting groove. The connecting member includes a connecting cylinder and connecting branches. The connecting cylinder is fixedly connected to the bottom of the first mounting groove. Multiple connecting branches are provided and are arranged around the connecting cylinder. The connecting branches are fixedly connected between the second isolation frame and the connecting cylinder. The connecting cylinder is arranged in a through manner with the second high-voltage connection point.

[0018] Based on the same inventive concept, the present disclosure also provides a power battery, including the above connector;

[0019] A battery module frame, on which a second installation groove for installing the connector is provided; one side of the connector with a side insulation frame protrudes from the second installation groove.

[0020] As can be seen from the above, the present application provides a connector, which is assembled by a high-voltage wire connection shell and a low-voltage wire connection shell. A circuit path is naturally formed between the low-voltage wire connection shell and the high-voltage wire connection shell. The high-voltage connection circuit and the low-voltage connection circuit are arranged in the circuit path, so that all high-voltage and low-voltage wire runs can be realized in one connector, and the wires in multiple connectors can be integrated into one connector. In this way, it is not necessary to separately set multiple high-voltage connectors and low-voltage connectors to connect the electrical module and the battery module respectively, thereby saving the space inside the power battery and improving the space utilization rate of the power battery; in addition, the high-voltage wire connection shell and the low-voltage wire connection shell are respectively provided with high-voltage connection points and low-voltage connection points. The high-voltage and low-voltage lines of the battery module and the high-voltage and low-voltage lines of the electrical module can directly connect the lines to the high-voltage connection points and low-voltage connection points to form high-voltage and low-voltage line connections, without using a special plug to connect to the connector, thereby further saving the space of the power battery and improving the space utilization rate of the power battery, and further improving the space density of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present application or related technologies, the following will briefly introduce the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of an embodiment of the present application;

[0023] Figure 2 It is a schematic diagram showing the position of the second high-voltage connection point in an embodiment of the present application;

[0024] Figure 3 It is a schematic structural diagram showing the low-voltage wire connection shell in an embodiment of the present application;

[0025] Figure 4 It is a schematic structural diagram showing the high-voltage wire connection shell in an embodiment of the present application;

[0026] Figure 5 It is a schematic structural diagram showing the bottom of the high-voltage wire connection shell in an embodiment of the present application;

[0027] Figure 6 This is a cross-sectional view showing the high-voltage wire connection housing according to an embodiment of the present application;

[0028] Figure 7 This is a schematic structural view showing the second installation groove according to an embodiment of the present application;

[0029] Figure 8 This is a schematic structural view showing the insulating sheath according to an embodiment of the present application.

[0030] Reference numerals: 1, high-voltage wire connection housing; 11, first high-voltage connection point; 111, first installation position; 112, first isolation frame; 12, second high-voltage connection point; 121, second installation position; 122, second isolation frame; 13, bracket; 14, first installation groove; 15, clamping point; 2, low-voltage wire connection housing; 21, first low-voltage connection point; 22, second low-voltage connection point; 3, high-voltage connection circuit; 31, high-voltage copper bar; 4, low-voltage connection circuit; 41, insulating bottom plate; 411, first low-voltage wire socket; 412, splicing point; 42, side insulating frame; 421, second low-voltage wire socket; 422, frame part; 4221, insertion interface; 423, connection bottom plate; 4231, splicing groove; 43, FPC flexible circuit board; 5, circuit path; 6, connecting member; 61, connecting cylinder; 62, connecting branch; 7, second installation groove; 8, insulating sheath; A, first outer contour; B, second outer contour; C, third outer contour. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the following further describes the present application in detail with reference to specific embodiments and the accompanying drawings.

[0032] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those of ordinary skill in the field to which the present application belongs. The "first", "second" and similar terms used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0033] Based on the background described above, both the power supply module and the electrical module in the power battery are high-voltage modules. The common connection method of the circuit between the battery module and the electrical module is mostly quick plug connection with a connector, that is, plugs are connected to both the power supply module and the electrical module, and both the power supply module and the electrical module are connected by inserting the plugs into the same connector. There are multiple circuits between the high-voltage battery module and the high-voltage electrical module, that is, multiple plugs are connected to the connector, which takes up a large amount of space, reduces the space utilization rate of the power battery, and does not meet the requirements of lightweight and small volume of the battery module. How to achieve effective high-voltage and low-voltage connections between high-voltage modules within a limited space is the problem existing currently.

[0034] The following will Figure 1-7 describe the embodiments of the present application in detail with reference to the accompanying

[0035] As Figure 1 and Figure 2 shown, a connector includes:

[0036] A high-voltage wire connection housing 1, at opposite ends of which are respectively provided a first high-voltage connection site 11 for connecting the high-voltage wire of the power supply module and a second high-voltage connection site 12 for connecting the high-voltage wire of the electrical module;

[0037] As Figure 1 and Figure 3 shown, a low-voltage wire connection housing 2 is arranged opposite to the high-voltage wire connection housing 1, at opposite ends of which are respectively provided a first low-voltage connection site 21 for connecting the low-voltage wire of the power supply module and a second low-voltage connection site 22 for connecting the low-voltage wire of the electrical module;

[0038] As Figure 3 and Figure 4 shown, a high-voltage connection circuit 3 and a low-voltage connection circuit 4 both pass through a circuit path 5 between the high-voltage wire connection housing 1 and the low-voltage wire connection housing 2. The high-voltage connection circuit 3 is used to connect the first high-voltage connection site 11 and the second high-voltage connection site 12 ( Figure 2 ); the low-voltage connection circuit 4 is used to connect the first low-voltage connection site 21 and the second low-voltage connection site 22.

[0039] As Figure 3 and Figure 4 shown, specifically, both the high-voltage wire connection housing 1 and the low-voltage wire connection housing 2 are made of insulating plastic materials. A bracket 13 is formed at the bottom of the high-voltage wire connection housing 1 and is placed on the low-voltage wire connection housing 2 to form the circuit path 5 so as to accommodate the high-voltage connection circuit 3 and the low-voltage connection circuit 4 at the same time, and the high-voltage connection circuit 3 and the low-voltage connection circuit 4 are insulated from each other.

[0040] This embodiment provides a connector, which is assembled by a high-voltage wire connecting shell 1 and a low-voltage wire connecting shell 2. A circuit path 5 is naturally formed between the low-voltage wire connecting shell 1 and the high-voltage wire connecting shell 2. A high-voltage connection circuit 3 and a low-voltage connection circuit 4 are arranged in the circuit path 5, so that high-voltage and low-voltage wire routing can be realized in one connector, and there is no need to separately set a high-voltage connector and a low-voltage connector to connect an electrical module and a battery module respectively, thereby saving space in the power battery and improving the space utilization rate of the power battery;

[0041] In addition, the high-voltage wire connecting shell and the low-voltage wire connecting shell are respectively provided with a high-voltage connection site and a low-voltage connection site. The high- and low-voltage lines of the battery module and the high- and low-voltage lines of the electrical module can directly connect the lines to the high-voltage connection site and the low-voltage connection site to form high- and low-voltage line connections, instead of using a special plug to connect to the connector. Thus, the space of the power battery is further saved, the space utilization rate of the power battery is improved, and the space density of the battery module is further increased.

[0042] In this application, the high- and low-voltage wire routing lines in the circuit path 5 are fixed, avoiding the wear of the conductor insulation structure caused by direct wire routing and improving the stability of the lines.

[0043] In some embodiments, as Figure 1 shown, the projection of the outer contour of the high-voltage wire connecting shell 1 on the low-voltage wire connecting shell 2 at least partially coincides with the area formed by the outer contour of the low-voltage wire connecting shell 2.

[0044] Specifically, as Figure 1 and Figure 2 shown, one end of the high-voltage wire connecting shell 1 provided with the second high-voltage connection site 12 is inserted into the low-voltage wire connecting shell 2. The low-voltage wire connecting shell 2 semi-wraps the high-voltage wire connecting shell 1. One end of the high-voltage wire connecting shell 1 provided with the first high-voltage connection site 11 is located above the low-voltage wire connecting shell 2, and one end of the high-voltage wire connecting shell 1 provided with the second high-voltage connection site 12 is located inside the low-voltage wire connecting shell 2. The outer contour of the high-voltage wire connecting shell 1 includes a first outer contour A of the side wall where the first high-voltage connection site 11 is installed, a second outer contour B of the end where the second high-voltage connection site 12 is installed, and a third outer contour C of the remaining two side walls. Among them, the projection of the third outer contour C on the low-voltage wire connecting shell 2 coincides with the outer contour of the low-voltage wire connecting shell 2, so that the two side walls of the low-voltage wire connecting shell 2 and the high-voltage wire connecting shell 1 that cooperate with the battery module are flat side walls, which is conducive to the assembly of the connector and the battery module; in addition, the projections of the first outer contour A and the second outer contour B on the low-voltage wire connecting shell 1 are located within the outer contour of the low-voltage wire connecting shell 1. Thus, the two wiring ends (i.e., the first high-voltage connection site 11 and the second high-voltage connection site 12) of the high-voltage wire connecting shell 1 can be effectively protected.

[0045] In this embodiment, the high-voltage wire connection housing 1 and the low-voltage wire connection housing 2 are compact in structure layout, and the two are stably assembled. The connection points are reasonably arranged. In particular, the two high-voltage connection points of the high-voltage wire connection housing 1 can be protected, which can further save the internal space of the power battery and improve the stability of the connector.

[0046] As Figure 1 and Figure 2 shown, in some embodiments, multiple first mounting positions 111 and multiple second mounting positions 121 are respectively provided at opposite ends of the high-voltage wire connection housing 1. The first mounting position 111 is used to connect the first high-voltage connection point 11, and the second mounting position 121 is used to connect the second high-voltage connection point 12. Insulation is provided between adjacent two first mounting positions 111 and between adjacent two second mounting positions 121.

[0047] Specifically, multiple first mounting positions 111 and second mounting positions 121 are provided. In this application, both the first mounting position 111 and the second mounting position 121 are provided with four. The first mounting position 111 and the second mounting position 121 are arranged in one-to-one correspondence to facilitate connecting more high-voltage connection circuits 3, so as to facilitate connection with the rear drive or fast charge circuit of the electrical module and be compatible with rear drive or rear fast charge type vehicles.

[0048] In this embodiment, the first mounting position 111 and the second mounting position 121 are provided at opposite ends of the high-voltage wire connection housing 1. The first mounting position 111 is close to the battery module, and the second mounting position 121 is close to the electrical module, which facilitates the direct connection of the high-voltage line of the battery module to the first high-voltage connection point 11 and also facilitates the direct connection of the high-voltage line of the electrical module to the second high-voltage connection point 12. That is, the first mounting position 111 and the second mounting position 121 are provided at opposite ends of the high-voltage wire connection housing 1 to facilitate the routing of the high-voltage lines of the battery module and the electrical module and avoid line crosstalk causing line instability or line wear. Insulation is provided between adjacent two first mounting positions 111 and between adjacent two second mounting positions 121 to avoid mutual interference between the first high-voltage connection points 11 and between the second high-voltage connection points 12 and ensure the safety and stability of the first high-voltage connection point 11 and the second high-voltage connection point 12.

[0049] As Figure 1 and Figure 2 shown, in some embodiments, a first mounting groove 14 is opened downward at one end of the high-voltage wire connection housing 1 where the second mounting position 121 is provided, and the second mounting positions 121 are arranged in parallel in the first mounting groove 14.

[0050] As Figure 1 and Figure 2As shown, specifically, the first mounting position 111 is the side wall of the high-voltage wire connection housing 1. The first mounting position 111 is close to the battery module and does not protrude, which can save the space of the battery module, improve the space utilization rate of the battery module, and thus increase the space density of the battery module. The four first mounting positions 111 are evenly distributed on both sides of the high-voltage wire connection housing 1, leaving space for the routing of the high-voltage connection circuit 3 and the high-voltage lines of the battery module in the middle. The space layout is reasonable and the utilization rate is high. The four second mounting positions 121 are arranged horizontally in a row within the first mounting groove 14, and the second high-voltage connection points 12 on the four second mounting positions 121 are also arranged horizontally in a row.

[0051] In this embodiment, multiple second mounting positions 121 are horizontally integrated within the first mounting groove 14, which facilitates the centralized arrangement of the second high-voltage connection points 12, thus saving the space for connecting the high-voltage lines of the electrical module to the second high-voltage connection points 12. In addition, the multiple second mounting positions 121 are horizontally arranged within the first mounting groove 14, that is, the multiple second mounting positions 121 face upward, which can avoid crosstalk of the electrical module wiring and facilitate the operator to connect the high-voltage lines of the electrical module to the second high-voltage connection points 12 on the second mounting positions 121 by screwing from top to bottom, effectively improving the connection efficiency of the high-voltage lines of the electrical module to the connectors.

[0052] As Figure 1 and Figure 2 shown, in some embodiments, a first isolation frame 112 is provided between adjacent first mounting positions 111, and the first isolation frame 112 is provided on the side wall of the high-voltage wire connection housing 1; a second isolation frame 122 is provided between adjacent second mounting positions 121, and the second isolation frame 122 is installed within the first mounting groove 14.

[0053] Specifically, the first isolation frame 112 can effectively insulate and isolate the first high-voltage connection points 11 on the first mounting positions 111, and the second isolation frame 122 can effectively insulate and isolate the second high-voltage connection points 12 on the second mounting positions 121, avoiding the mutual influence of adjacent high-voltage connection points and ultimately avoiding affecting the stability of the circuit.

[0054] Furthermore, the first isolation frame 112 is a frame plate, which isolates the first high-voltage connection points 11 on adjacent first mounting positions 111 and isolates the high-voltage connection circuit 3 in the middle of the side wall of the high-voltage wire connection housing 1 from the first high-voltage connection points 11 on the first mounting positions 111.

[0055] As Figure 2As shown, further, the second isolation frame 122 is a framework. A second high-voltage connection site 12 is arranged in each second isolation frame 122. A connecting member 6 is provided between the second high-voltage connection site 12 and the bottom of the first installation groove 14. The connecting member 6 is fixedly connected to the bottom of the first installation groove 14. The connecting member 6 includes a connecting cylinder 61 and connecting branches 62. The connecting cylinder 61 is fixedly connected to the bottom of the first installation groove 14. A plurality of connecting branches 62 are provided and are evenly arranged around the connecting cylinder 61. The connecting branches 62 are fixedly connected between the second isolation frame 122 and the connecting cylinder 61 for increasing the connection strength between the connecting cylinder 61 and the second isolation frame 122. When the second high-voltage connection site 12 is connected to the high-voltage circuit of the electrical module by screws, the second high-voltage connection site 12 will bear the pressure from the screwing device from top to bottom. At this time, the connecting cylinder 61 can well support the second high-voltage connection site 12 to prevent the second high-voltage connection site 12 from bending downward when screwing. The connecting cylinder 61 and the second high-voltage connection site 12 are arranged in a through manner, that is, the hollow of the connecting cylinder 61 coincides with the hollow of the second high-voltage connection site 12, which is convenient for the screw to move down smoothly and ensures the smoothness and stability of the connection between the second high-voltage connection site 12 and the high-voltage circuit of the electrical module.

[0056] As Figure 4 , Figure 5 and Figure 6 shown, wherein, the high-voltage connection circuit 3 is a plurality of high-voltage copper bars 31. After each high-voltage copper bar 31 passes through the circuit path 5, its two ends extend to the first installation position 111 and the second installation position 121 ( Figure 2 ), and form the first high-voltage connection site 11 and the second high-voltage connection site 12.

[0057] Specifically, the high-voltage connection circuit 3 in this embodiment is a high-voltage copper bar 31. The copper bar is an excellent conductor, and its electrical conductivity is far better than other metals such as aluminum. In the high-voltage connection circuit 3, the copper bar can ensure the efficient transmission of current, reduce energy loss. The resistance of the copper bar is relatively low, which means that when transmitting the same current, the heat generated by it is less, which is beneficial to the stable operation of the system. The copper bar can bear a large tensile force, ensuring that it is not easy to break during the connection process, and improving the reliability of the high-voltage connection circuit 3. The copper bar can form a dense oxide film in the air to prevent the internal metal from further oxidizing, thereby improving its corrosion resistance, and further improving the service life of the high-voltage connection circuit 3 in this application.

[0058] Furthermore, the high-voltage copper bar 31 is fixedly connected to the high-voltage wire connection housing 1. The high-voltage copper bar 31 passing through the circuit path 5 is fixedly connected to the lower surface of the high-voltage wire connection housing 1. The bottom of the first installation groove 14 communicates with the circuit path 5. The high-voltage copper bar 31 at the bottom of the high-voltage wire connection housing 1 extends parallel into the second installation position 121 on the bottom of the first installation groove 14. The high-voltage copper bars 31 at the bottom of the high-voltage wire connection housing 1 are arranged in rows, and adjacent high-voltage copper bars 31 are separated by an insulating grid, further improving the safety of the high-voltage copper bar 31. Moreover, the surface of the high-voltage copper bar 31 is covered with an insulating sheet or a fireproof insulating structure, effectively improving the insulation and fireproof performance of the surface of the high-voltage copper bar 31. In this application, four high-voltage copper bars 31 are provided. Two high-voltage copper bars 31 and one low-voltage connection circuit 4 can realize the connection of high- and low-voltage lines between the battery module and the electrical module. The redundant two intermediate high-voltage copper bars 31 can be connected to the rear drive or fast charge circuit of the electrical module, compatible with vehicles in the form of rear drive or rear fast charge.

[0059] As Figure 3 shown, in some embodiments, the low-voltage wire connection housing 2 includes an insulating bottom plate 41 and a side insulating frame 42. The side insulating frame 42 is located on one side of the insulating bottom plate 41. A first low-voltage wire socket 411 is provided on the side of the insulating bottom plate 41 away from the side insulating frame 42, and a first low-voltage connection point 21 is provided in the first low-voltage wire socket 411; a second low-voltage wire socket 421 is provided at the top of the side insulating frame 42, and a second low-voltage connection point 22 is provided in the second low-voltage wire socket 421.

[0060] Among them, the low-voltage connection circuit 4 is a flexible line. After passing through the circuit path 5, both ends of the flexible line extend to the first low-voltage connection point 21 and the second low-voltage connection point 22.

[0061] Specifically, the flexible line is an FPC flexible circuit board 43, which is a printed circuit made of a flexible insulating substrate. In this application, the FPC flexible circuit board 43 is bent into an L shape along the shape of the insulating bottom plate 41 and the side insulating frame 42, so as to realize the connection with the first low-voltage wire socket 411 and the second low-voltage wire socket 421. The FPC flexible circuit board 43 is thin, light and easy to bend, and can adapt to the complex and compact space layout in this application's connector. The FPC flexible circuit board 43 can reduce the volume and weight of the connector compared with traditional lines, and is more suitable for high-density and miniaturized power batteries. The thin design and good heat dissipation performance of the FPC flexible circuit board 43 contribute to heat dissipation, thus maintaining the stable operation of the connector.

[0062] In this embodiment, both ends of the low-voltage connection circuit 4 adopt the form of sockets, which can facilitate the quick installation and disassembly of the wiring terminals of the battery module and the electrical module, and further improve the connection efficiency and disassembly efficiency between the battery module and the electrical module and the low-voltage connection circuit 4.

[0063] AsFigure 1 and Figure 3 As shown in Figure 3 , in some embodiments, the side insulation frame 42 includes a connected frame portion 422 and a connecting bottom plate 423. The connecting bottom plate 423 is opposite to and spliced with the insulation bottom plate 41. An insertion interface 4221 is provided between the frame portion 422 and the connecting bottom plate 423. One end of the high-voltage wire connection shell 1 having the second high-voltage connection point 12 is inserted into the insertion interface 4221. The second high-voltage connection point 12 is located below the frame portion 422. The projection of the first high-voltage connection point 11 on the low-voltage wire connection shell 2 is located between the first low-voltage wire socket 411 and the second low-voltage wire socket 421. That is, the first low-voltage wire connection point 21 and the first high-voltage connection point 11 are arranged in a horizontal misalignment, thereby avoiding the installation interference of the first low-voltage wire socket 411 and the first installation position 111.

[0064] As Figure 3 shown in Figure 3 , specifically, the insulation bottom plate 41 protrudes with a pair of splicing points 412, and a pair of splicing grooves 4231 are provided on the connecting bottom plate 423. The splicing points 412 are inserted into the splicing grooves 4231 to complete the splicing, thereby completing the relative fixation of the connecting bottom plate 423 and the insulation bottom plate 41. In addition, the projection of the second low-voltage connection point 22 on the high-voltage wire connection shell 1 is located on the second installation position 121. That is, the second low-voltage connection point 22 and the second high-voltage connection point 12 are arranged in a vertical misalignment, thereby avoiding the installation interference of the second low-voltage wire socket 421 and the second installation position 121.

[0065] In this embodiment, the low-voltage wire connection shell 2 is formed by splicing the connecting bottom plate 423 on the side insulation frame 42 with the insulation bottom plate 41. The high-voltage wire connection shell 1 is inserted into the low-voltage wire connection shell 2 to form a connector. The insulation bottom plate 41, the side insulation frame 42, and the high-voltage wire connection shell 1 are mutually constrained to form a stable assembly combination. The structure is compact, and the space inside the power battery can be saved. The three naturally form a circuit path 5, and the high-voltage connection circuit 3 and the low-voltage connection circuit 4 are arranged in the circuit path 5. High-voltage and low-voltage wire routing are realized in one connector, improving the space utilization rate of the power battery.

[0066] As Figure 7 and Figure 8 shown in Figure 8 , the present application also provides a power battery, including the above-mentioned connector;

[0067] A battery module frame, and a second installation groove 7 for installing the connector is provided on the battery module frame; One side of the connector having the side insulation frame 42 protrudes from the second installation groove 7.

[0068] Specifically, the battery module frame is a metal frame. The high-voltage wire connection shell 1 and the low-voltage wire connection shell 2 penetrate through the second installation groove 7, and the high-voltage wire connection shell 1 and the low-voltage wire connection shell 2 are stuck in the second installation groove 7. The side of the connector with the side insulation frame 42 protrudes from the second installation groove 7, and the side of the connector close to the battery module is completely located in the second installation groove 7, avoiding occupying the space inside the battery module and improving the space utilization rate inside the battery module. An insulating sheath 8 is fixedly connected to the battery module frame, and the insulating sheath 8 wraps the side insulation frame 42. The side wall of the side insulation frame 42 is connected to the insulating sheath 8 by bolts to complete the fixation of the insulating sheath 8.

[0069] In addition, clamping points 15 are provided on both sides of the high-voltage wire connection shell 1, which are convenient for clamping with the card slots in the second installation groove 7, further improving the stability of the high-voltage wire connection shell 1 located in the second installation groove 7.

[0070] The connector in this embodiment is made of a plastic material. The made high-voltage wire connection shell 1 and low-voltage wire connection shell 2 have good insulation and are easy to mold. Installing the high-voltage wire connection shell 1 and the low-voltage wire connection shell 2 on the metal structure of the battery module frame can isolate the metal structure of the battery module frame from the current conductors (high-voltage connection circuit 3, low-voltage connection circuit 4) to achieve the purpose of insulation protection.

[0071] The assembly steps of the connector are as follows:

[0072] First, install the insulating sheath 8 on the side of the battery outer frame close to the electrical module. Install the side insulation frame 42 in the insulating sheath 8 through bolts. Load the insulating bottom plate 41 into the second installation groove 7 from one side of the battery module. The connection bottom plate 423 of the insulating bottom plate 41 and the side insulation frame 42 are spliced and assembled through the splicing points 412 and the splicing grooves 4231. Connect the FPC flexible circuit board 43 between the two low-voltage wire sockets. Load the high-voltage wire connection shell 1 into the second installation groove 7 from one side of the battery module. The first low-voltage wire socket 411 passes through the circuit path 5 below the high-voltage wire connection shell 1, and the high-voltage wire connection shell 1 is inserted into the insertion interface 4221. The clamping points 15 on both sides of the high-voltage connection point are clamped with the card slots in the second installation groove 7. The insulating bottom plate 41, the side insulation frame 42, and the high-voltage wire connection shell 1 restrict each other to form a stable assembly combination.

[0073] During use, insert the wiring terminal of the low-voltage line of the battery module into the first low-voltage wire socket 411, and insert the wiring terminal of the low-voltage line of the electrical module into the second low-voltage wire socket 421 to complete the connection of the low-voltage line; connect the high-voltage line of the battery module to the first high-voltage connection point 11 through bolts, and connect the high-voltage line of the electrical module to the second high-voltage connection point 12 through bolts to complete the connection of the high-voltage circuit.

[0074] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present application is limited to these examples; under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of the present application as described above, and for the sake of brevity, they are not provided in detail.

[0075] In addition, for the sake of simplicity of explanation and discussion, and in order not to make the embodiments of the present application difficult to understand, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. In addition, the devices may be shown in block diagram form in order to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present application are to be implemented (i.e., these details should be fully within the understanding of those skilled in the art). In the case where specific details (such as circuits) are set forth to describe the exemplary embodiments of the present application, it will be apparent to those skilled in the art that the embodiments of the present application can be implemented without these specific details or with variations of these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0076] Although the present application has been described in connection with specific embodiments of the present application, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description.

[0077] The embodiments of the present application are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the claims of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A connector, characterized in that, Including: A high-voltage wire connection housing (1), with a first high-voltage connection site (11) for connecting the high-voltage wire of the power module and a second high-voltage connection site (12) for connecting the high-voltage wire of the electrical module respectively provided at its opposite ends; A low-voltage wire connection housing (2), arranged opposite to the high-voltage wire connection housing (1), with a first low-voltage connection site (21) for connecting the low-voltage wire of the power module and a second low-voltage connection site (22) for connecting the electrical module respectively provided at its opposite ends; A high-voltage connection circuit (3) and a low-voltage connection circuit (4), both passing through a circuit path (5) between the high-voltage wire connection housing (1) and the low-voltage wire connection housing (2), the high-voltage connection circuit (3) being used to connect the first high-voltage connection site (11) and the second high-voltage connection site (12); the low-voltage connection circuit (4) being used to connect the first low-voltage connection site (21) and the second low-voltage connection site (22).

2. The connector according to claim 1, characterized in that, The projection of the outer contour of the high-voltage wire connection housing (1) onto the low-voltage wire connection housing (2) at least partially coincides with the area formed by the outer contour of the low-voltage wire connection housing (2).

3. The connector according to claim 2, characterized in that, Multiple first mounting positions (111) and multiple second mounting positions (121) are respectively provided at the opposite ends of the high-voltage wire connection housing (1), the first mounting positions (111) being used to connect the first high-voltage connection site (11), the second mounting positions (121) being used to connect the second high-voltage connection site (12), and insulation is provided between adjacent two of the first mounting positions (111) and between adjacent two of the second mounting positions (121).

4. A connector according to claim 3, characterized in that, One end of the high-voltage wire connection housing (1) where the second mounting positions (121) are provided is downwardly provided with a first mounting groove (14), and multiple second mounting positions (121) are arranged side by side in the first mounting groove (14).

5. A connector according to claim 4, wherein A first isolation frame (112) is provided between adjacent first mounting positions (111), and the first isolation frame (112) is arranged on the side wall of the high-voltage wire connection housing (1); a second isolation frame (122) is provided between adjacent second mounting positions (121), and the second isolation frame (122) is installed in the first mounting groove (14).

6. A connector according to claim 1, characterized in that, The low-voltage wire connection housing (2) includes an insulating bottom plate (41) and a side insulating frame (42), the side insulating frame (42) is located on one side of the insulating bottom plate (41), a first low-voltage wire socket (411) is provided on the side of the insulating bottom plate (41) away from the side insulating frame (42), and the first low-voltage connection site (21) is provided in the first low-voltage wire socket (411); a second low-voltage wire socket (421) is provided at the top of the side insulating frame (42), and the second low-voltage connection site (22) is provided in the second low-voltage wire socket (421).

7. A connector according to claim 6, characterized in that, The low-voltage connection circuit (4) is a flexible circuit, and after passing through the circuit path (5), its two ends extend to the first low-voltage connection site (21) and the second low-voltage connection site (22).

8. A connector according to claim 7, characterized in that, The side insulation frame (42) includes a frame portion (422) and a connecting bottom plate (423) connected to each other. The connecting bottom plate (423) is opposite to and spliced with the insulation bottom plate (41). An insertion port (4221) is provided between the frame portion (422) and the connecting bottom plate (423). One end of the high-voltage wire connection shell (1) provided with the second high-voltage connection site (12) is inserted into the insertion port (4221). The second high-voltage connection site (12) is located below the frame portion (422). The projection of the first high-voltage connection site (11) on the low-voltage wire connection shell (2) is located between the first low-voltage wire socket (411) and the second low-voltage wire socket (421).

9. A connector according to claim 5, characterized in that, A connecting member (6) is provided between the second high-voltage connection site (12) and the bottom of the first installation groove (14). The connecting member (6) includes a connecting cylinder (61) and connecting branches (62). The connecting cylinder (61) is fixedly connected to the bottom of the first installation groove (14). A plurality of connecting branches (62) are provided and arranged around the connecting cylinder (61). The connecting branches (62) are fixedly connected between the second isolation frame (122) and the connecting cylinder (61). The connecting cylinder (61) is provided with a through hole communicating with the second high-voltage connection site (12).

10. A power battery, comprising: The connector according to any one of claims 1-9; A battery module frame, on which a second installation groove (7) for installing the connector is provided; one side of the connector provided with a side insulation frame (42) protrudes from the second installation groove (7).

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