An electrical connector, battery pack, and vehicle

Abstract

The embodiment of the present application provides an electric connector, a battery pack and a vehicle, which comprise a shell, a first sealing element, a second sealing element and a cover. The shell comprises a first wire cavity, a second wire cavity, a first window and a second window. The first wire cavity and the second wire cavity are independent of each other. The first window is in communication with the first wire cavity, and the second window is in communication with the second wire cavity. The first sealing element is located in the first window and is in sealing connection with the shell. The second sealing element is located in the second window and is in sealing connection with the shell. The cover is connected with the shell and is used for closing the first window and the second window. The first window and the second window are independent of each other, so that the required sealing element size is greatly reduced. Therefore, the assembly yield of the electric connector is improved, and the sealing performance and the protection performance are improved.

Description

Technical Field

[0001] This application relates to the field of electrical connector technology, and more particularly to an electrical connector, a battery pack, and a vehicle. Background Technology

[0002] Electrical connectors are connecting components in a vehicle that enable interconnection of all electrical parts. For example, inside a battery pack, electrical connectors connect battery modules to each other, and battery modules to battery pack circuit breakers. Electrical connectors typically include a housing and electrical connection units. The housing usually has a window and a cover that closes the window. The positive and negative electrical connection units are embedded in the housing and located at the same window. A sealing ring is required between the cover and the window to form an end-face seal. However, because the cover has a large area, the required sealing ring size is also large, leading to a high risk of assembly defects and affecting the sealing performance of the electrical connector. Utility Model Content

[0003] This application provides an electrical connector, a battery pack, and a vehicle, aiming to improve the problem that the large size of the sealing ring used to seal windows and covers leads to a high risk of poor assembly and affects sealing performance.

[0004] An electrical connector includes: a housing, the housing including a first wiring cavity, a second wiring cavity, a first window, and a second window, the first wiring cavity and the second wiring cavity being independent of each other, the first window communicating with the first wiring cavity, and the second window communicating with the second wiring cavity; a first seal located at the first window for sealing connection with the housing; a second seal located at the second window for sealing connection with the housing; and a faceplate connected to the housing for sealing the first window and the second window.

[0005] Based on the aforementioned technical means, the positive and negative electrical connection units are routed independently through the first and second wiring cavities. The independence of the first and second windows significantly reduces the required sealing element size. This improves the assembly yield of the electrical connector and enhances its sealing and protective performance.

[0006] An optional utility model embodiment includes a first sealing element embedded in the first window and forming a compression seal with the first window; and / or a second sealing element embedded in the second window and forming a compression seal with the second window.

[0007] Based on the aforementioned technical means, the first and / or second sealing elements can be directly sealed to the outer casing within the window, eliminating the need for a faceplate for end-face sealing. The faceplate only provides basic protective performance. This further improves the assembly yield of the electrical connector, enhances sealing and protective performance, and minimizes sealing performance degradation after long-term use and aging. Furthermore, since the first and second wiring cavities are independent, the positive and negative electrical connection units are electrically isolated. Therefore, disassembling and maintaining one electrical connection unit will not affect the other, and the safety factor during disassembly and maintenance is improved.

[0008] An optional utility model embodiment includes a first wiring cavity having a first bend, with the first window disposed at the first bend; and / or a second wiring cavity having a second bend, with the second window disposed at the second bend.

[0009] Based on the above technical means, the structural design of the turning cabling can reduce the space required for cable arrangement. Furthermore, the windows are set at the turning points, which allows the cabling connection area at the turning points to be opened up while keeping the window area as small as possible. This facilitates improved sealing and makes it easier to disassemble and maintain the electrical connectors.

[0010] An optional utility model embodiment states that the angle of the first wiring cavity at the first bend is the same as the angle of the second wiring cavity at the second bend; wherein, at the first bend, the first wiring cavity bends from a first direction toward a second direction, the first direction being perpendicular to the second direction, and the first window and / or the second window are arranged along a third direction, the third direction being perpendicular to the first direction and the second direction respectively.

[0011] Based on the aforementioned technical means, the 90-degree turn design can reduce the space required for cable routing and avoid the cables compressing the space of other components. The window is positioned vertically at the cable turn, improving the visibility of the turn and allowing for an open view of the cable connection area while keeping the window size as small as possible.

[0012] In one optional utility model, the electrical connector further includes: two copper busbar liners, each embedded in the first wiring cavity and the second wiring cavity; two wire harness liners, each embedded in the first wiring cavity and the second wiring cavity; and the copper busbar liners and the wire harness liners are inserted one-to-one, with the first window and the second window respectively located at the insertion points of the copper busbar liners and the wire harness liners.

[0013] Based on the above technical means, the copper busbar liner and the wire harness liner are inserted inside the housing, eliminating the need for an additional housing liner, which improves the assembly convenience of the electrical connector and reduces its size.

[0014] In one optional utility model, the electrical connector further includes: two copper busbars, each embedded in a copper busbar liner and extending to the first window and the second window respectively; and two wire harnesses, each embedded in a wire harness liner and extending to the first window and the second window respectively, wherein the copper busbar liners, the copper busbars, the wire harness liners, and the wire harnesses are stacked in a third direction at the first window and / or the second window, forming a detachable connection.

[0015] Based on the aforementioned technical means, by further connecting the stacked copper busbar liner, copper busbar, wire harness liner, and wire harness along a third direction after the copper busbar liner and wire harness liner are inserted, the connection strength between the wire harness liner and the copper busbar liner can be improved. Furthermore, the insertion area of ​​the copper busbar liner and the wire harness liner, as well as the electrical connection area between the copper busbar and the wire harness, can be fully opened through the window. This facilitates the disassembly and maintenance of the electrical connector while minimizing the window area of ​​the first and second windows, thereby further improving the sealing effect at the first and second windows.

[0016] In one optional utility model, the electrical connector includes two sealing components, which are respectively fitted onto the two wire harnesses and snapped into the housing to seal the first wiring cavity and the second wiring cavity.

[0017] Based on the above technical means, the gap between the wire harness and the first wiring cavity and the gap between the wire harness and the second wiring cavity can be sealed by the sealing component, thereby improving the dustproof performance of the electrical connector.

[0018] An optional utility model includes a limiting protrusion on the outer shell, and a sealing assembly comprising: an inner shielding ring fitted onto the wire harness; an outer shielding ring fitted radially outward of the inner shielding ring to confine the wire harness shielding layer within the area between the outer shielding ring and the inner shielding ring, wherein the outer shielding ring has an annular groove at its end away from the wire harness liner; a spring coil embedded in the annular groove and interference-fitted with the wire harness liner; a sealing ring located at the end of the spring coil away from the wire harness liner and fitted onto the wire harness; a wire clamp located at the end of the sealing ring away from the wire harness liner and fitted onto the wire harness; and a tail cap fitted radially outward of the wire clamp, the tail cap having a limiting hole. When the limiting hole engages with the limiting protrusion to form a snap-fit, the wire clamp presses against the sealing ring, causing the sealing ring to abut against and seal the inner shielding ring and the outer shielding ring against the wire harness liner.

[0019] Based on the above technical means, the interference fit between the spring coil and the wire harness liner achieves electromagnetic wave shielding within the wire harness liner through the inner and outer shielding rings, preventing external electromagnetic interference to the wire harness. Furthermore, the snap-fit ​​between the tail cap and the outer shell ensures that the sealing ring abuts against the radial end face of the wire harness liner to form a sealed connection. Therefore, while improving the sealing performance of the sealing assembly, it also facilitates the assembly and disassembly of the sealing assembly.

[0020] A battery pack comprising an electrical connector as described in any of the above-mentioned utility models.

[0021] Based on the aforementioned technical means, the positive and negative electrical connection units are routed independently through the first and second wiring cavities. The independence of the first and second windows significantly reduces the required sealing element size. This improves the assembly yield of the electrical connector and enhances its sealing and protective performance.

[0022] A vehicle comprising a battery pack as described in the foregoing utility model, or a vehicle comprising an electrical connector as described in any of the foregoing utility model.

[0023] Based on the aforementioned technical means, the positive and negative electrical connection units are routed independently through the first and second wiring cavities. The independence of the first and second windows significantly reduces the required sealing element size. This improves the assembly yield of the electrical connector and enhances its sealing and protective performance. Attached Figure Description

[0024] Figure 1This is a three-dimensional structural schematic diagram of an electrical connector provided in an embodiment of this application;

[0025] Figure 2 This is an exploded view of the first part of the structure of an electrical connector according to an embodiment of this application;

[0026] Figure 3 This is an exploded view of the second part of the structure of an electrical connector according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of an assembly structure of a copper busbar, a copper busbar liner, a wire harness, and a wire harness liner provided in an embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the assembly structure of the outer shell, copper busbar liner, and wire harness liner provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the assembly structure of the wire harness and the housing provided in one embodiment of this application;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of a sealing component provided in an embodiment of this application;

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Outer shell; 101. First wiring cavity; 102. Second wiring cavity; 103. First window; 104. Second window; 11. Limiting protrusion; 2. First seal; 3. Second seal; 4. Face cover; 5. Copper busbar liner; 6. Wire harness liner; 7. Copper busbar; 8. Wire harness; 9. Sealing assembly; 91. Inner shielding ring; 92. Outer shielding ring; 9201. Annular groove; 93. Spring ring; 94. Sealing ring; 95. Wire clamp; 96. Tail cap; 9601. Limiting hole. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] Electrical connectors are connecting components in a vehicle that enable interconnection of all electrical parts. For example, inside a battery pack, electrical connectors connect battery modules to each other, and battery modules to battery pack circuit breakers. Electrical connectors typically include a housing and electrical connection units. The housing usually has a window and a cover that closes the window. The positive and negative electrical connection units are embedded in the housing and located at the same window. A sealing ring is required between the cover and the window to form an end-face seal. However, because the cover has a large area, the required sealing ring size is also large, leading to a high risk of assembly defects and affecting the sealing performance of the electrical connector.

[0035] This application provides an electrical connector including a housing, a first seal, a second seal, and a faceplate. The housing includes a first wiring cavity, a second wiring cavity, a first window, and a second window. The first wiring cavity and the second wiring cavity are independent of each other. The first window communicates with the first wiring cavity, and the second window communicates with the second wiring cavity. The first seal is located at the first window for a sealing connection with the housing. The second seal is located at the second window for a sealing connection with the housing. The faceplate is connected to the housing to close the first window and the second window.

[0036] Technical benefits: The positive and negative electrical connection units are routed independently through the first and second wiring cavities. The independence of the first and second windows significantly reduces the required sealing element size. This improves the assembly yield of the electrical connector and enhances its sealing and protective performance.

[0037] Furthermore, since the first wiring cavity and the second wiring cavity are independent of each other, the positive and negative electrical connection units can be electrically isolated. Therefore, when one electrical connection unit is disassembled and maintained, it will not affect the other electrical connection unit, and the safety factor during disassembly and maintenance can be improved.

[0038] Example 1

[0039] Reference Figure 1 , Figure 2 as well as Figure 3 As shown, the first sealing member 2 is embedded in the first window 103 and is pressed and sealed with the first window 103. And / or, the second sealing member 3 is embedded in the second window 104 and is pressed and sealed with the second window 104.

[0040] In this embodiment, the first sealing member 2 is shaped to fit the first window 103. The first sealing member 2 is embedded within the first window 103 and, through compression, forms a seal at the connection between the first wiring cavity 101 and the first window 103. For example, compression sealing can also be understood as an interference fit between the first sealing member 2 and the inner wall of the first window 103. Therefore, it is unnecessary to fit the sealing ring 94 onto the cover 4 and then perform an end-face seal with the outer shell 1; the cover 4 only provides basic protection (e.g., dustproof).

[0041] The second seal 3 is shaped to fit the second window 104. The second seal 3 is embedded within the second window 104 and, through compression with the second window 104, forms a seal at the connection between the second wiring cavity 102 and the second window 104. For example, both the first seal 2 and the second seal 3 can be sealing plugs made of elastic material. Therefore, it is unnecessary to fit the sealing ring 94 onto the faceplate 4 and then perform end-face sealing with the outer shell 1; the faceplate 4 only provides basic protection (e.g., dustproof). Based on the above structural design, the first seal 2 and the second seal 3 can effectively perform dustproof sealing functions, further improving the assembly yield of the electrical connector, enhancing sealing and protective performance, and exhibiting minimal sealing performance degradation after long-term use and aging.

[0042] In one or more embodiments, refer to Figure 3 , Figure 5 as well as Figure 6 As shown, the first wiring cavity 101 has a first bend, and the first window 103 is disposed at the first bend. And / or, the second wiring cavity 102 has a second bend, and the second window 104 is disposed at the second bend.

[0043] In this embodiment, the first wiring cavity 101 has a first bend, meaning the cable bends and runs within the first wiring cavity 101. This bend-running design, compared to straight-running, reduces the space required for cable arrangement, for example, reducing the required extension length of the cable routing space. Considering that different cables are typically electrically connected at bends, the first window 103 is located at the first bend. While minimizing the window area of ​​the first window 103, the wiring connection area at the first bend can be opened. This further reduces the required size of the seal and improves the sealing performance of the electrical connector. Furthermore, the first window 103 faces the wiring connection area, allowing direct assembly and disassembly of the wiring connection area through the first window 103, thus facilitating the disassembly and maintenance of the electrical connector.

[0044] The second cabling cavity 102 has a second bend, meaning the cable bends and runs within the second cabling cavity 102. This bend-running design, compared to straight-running, reduces the space required for cable arrangement, such as reducing the required extension length of the cable routing space. Considering that different cables are typically electrically connected at bends, the second window 104 is located at the second bend. While minimizing the window area of ​​the second window 104, the cabling connection area at the second bend can be opened. This further reduces the required size of the seal and improves the sealing performance of the electrical connector. Furthermore, the second window 104 faces the cabling connection area, allowing direct assembly and disassembly of the cabling connection area through the second window 104, thus facilitating the disassembly and maintenance of the electrical connector.

[0045] In one or more embodiments, refer to Figure 2 and Figure 3 As shown, the angle of the first wiring cavity 101 at the first turn is the same as the angle of the second wiring cavity 102 at the second turn. Specifically, at the first turn, the first wiring cavity 101 bends from a first direction toward a second direction, with the first direction perpendicular to the second direction. Furthermore, the first window 103 and / or the second window 104 are arranged along a third direction, which is perpendicular to both the first and second directions.

[0046] In this embodiment, the angle of the first wiring cavity 101 at the first bend is the same as the angle of the second wiring cavity 102 at the second bend. This improves the neatness of the electrical connector wiring arrangement and facilitates better consistency in cable routing direction. At the first bend, the first wiring cavity 101 bends from a first direction toward a second direction perpendicular to the first direction; that is, the included angles at the first and second bends are both 90 degrees. For example, using a three-dimensional spatial coordinate system, the first direction can be the X-axis, and the second direction can be the Y-axis. The 90-degree bend design reduces the space required for cable arrangement and avoids cable compression of other components. For example, it avoids cable crossings caused by different bend angles.

[0047] The first window 103 and / or the second window 104 are arranged along a third direction, and the third direction is perpendicular to the first direction and the second direction, respectively. That is, it can be understood that the first window 103 and / or the second window are arranged along the Z-axis. For example, the cross-sectional shape of the plane formed by the first direction and the second direction of the first window 103 can be circular. This allows the central axis of the first window 103 to be parallel to the third direction. Similarly, the cross-sectional shape of the plane formed by the first direction and the second direction of the second window 104 can be circular. This allows the central axis of the second window 104 to be parallel to the third direction. Therefore, the window is perpendicular to the wiring bend, improving the observation effect at the wiring bend. It also allows for the opening of the wiring connection area at the bend while keeping the window area as small as possible, further improving the ease of assembly and disassembly of the electrical connector.

[0048] In one or more embodiments, refer to Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, the electrical connector may further include two copper busbar liners 5 and two wire harness liners 6. The two copper busbar liners 5 are respectively fitted into the first wiring cavity 101 and the second wiring cavity 102. The two wire harness liners 6 are respectively fitted into the first wiring cavity 101 and the second wiring cavity 102. Furthermore, the copper busbar liners 5 and the wire harness liners 6 are inserted one-to-one, with the first window 103 and the second window 104 respectively located at the insertion points of the copper busbar liners 5 and the wire harness liners 6.

[0049] In this embodiment, the copper busbar liner 5 and the wire harness liner 6 provide electrical insulation, and the copper busbar liner 5 provides structural support for the installation of the copper busbar 7, while the wire harness liner 6 provides structural support for the installation of the wire harness 8. The two copper busbar liners 5 are respectively embedded in the first wiring cavity 101 and the second wiring cavity 102, and the two wire harness liners 6 are respectively embedded in the first wiring cavity 101 and the second wiring cavity 102. Besides electrical insulation, the two copper busbar liners 5 and the two wire harness liners 6 are inserted one-to-one. That is, the first copper busbar liner 5 and the first wire harness liner 6 are inserted and positioned in the first wiring cavity 101. The second copper busbar liner 5 and the second wire harness liner 6 are inserted and positioned in the second wiring cavity 102. Therefore, the copper busbar liner 5 and the wire harness liner 6 are inserted inside the housing 1, eliminating the need for an additional housing liner 1, which improves the ease of assembly of the electrical connector and reduces its size.

[0050] The first window 103 is located at the insertion point of the copper busbar liner 5 and the wire harness liner 6 in the first wiring cavity 101, and the second window 104 is located at the insertion point of the copper busbar liner 5 and the wire harness liner 6 in the second wiring cavity 102. Thus, the insertion area of ​​the copper busbar liner 5 and the wire harness liner 6 can be completely opened through the windows, facilitating the disassembly and maintenance of the electrical connector. At the same time, the window areas of the first window 103 and the second window 104 can be minimized, thereby further improving the sealing effect at the first window 103 and the second window 104.

[0051] In one or more embodiments, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 6 As shown, the electrical connector may further include two copper busbars 7 and two wire harnesses 8. The two copper busbars 7 are each embedded in one of the two copper busbar liners 5 and extend to the first window 103 and the second window 104, respectively. The two wire harnesses 8 are each embedded in one of the two wire harness liners 6 and extend to the first window 103 and the second window 104, respectively. The copper busbar liners 5, the copper busbars 7, the wire harness liners 6, and the wire harnesses 8 are stacked in a third direction at the first window 103 and / or the second window 104, forming a detachable connection.

[0052] In this embodiment, the electrical connector may further include two copper busbars 7 and two wire harnesses 8, both of which are used for power transmission. The two copper busbars 7 are embedded in the two copper busbar liners 5, and extend to the first window 103 and the second window 104 respectively. Specifically, the first copper busbar 7 is embedded in the first copper busbar liner 5 and extends to the first window 103. The second copper busbar 7 is embedded in the second copper busbar liner 5 and extends to the second window 104.

[0053] The copper busbar liner 5, copper busbar 7, wire harness liner 6, and wire harness 8 located in the first wiring cavity 101 are stacked along a third direction at the first window 103 and form a detachable connection, which can constitute a positive electrode electrical connection unit. And / or, the copper busbar liner 5, copper busbar 7, wire harness liner 6, and wire harness 8 located in the second wiring cavity 102 are stacked along a third direction at the second window 104 and form a detachable connection, which can constitute a negative electrode electrical connection unit. Therefore, based on the insertion of the copper busbar liner 5 and the wire harness liner 6, forming a detachable connection along a third direction between the stacked copper busbar liner 5, copper busbar 7, wire harness liner 6, and wire harness 8 can improve the connection strength between the wire harness liner 6 and the copper busbar liner 5. Furthermore, since the first wiring cavity 101 and the second wiring cavity 102 are independent of each other, the positive and negative electrical connection units can be electrically isolated. Therefore, when one electrical connection unit is disassembled and maintained, it will not affect the other electrical connection unit, and the safety factor during disassembly and maintenance can be improved.

[0054] Furthermore, the insertion area of ​​the copper busbar liner 5 and the wire harness liner 6, as well as the electrical connection area of ​​the copper busbar 7 and the wire harness 8, can be fully opened through the first window 103 and / or the second window 104. This facilitates the disassembly and maintenance of the electrical connectors while minimizing the window area of ​​the first window 103 and the second window 104, thereby further improving the sealing effect at the first window 103 and the second window 104.

[0055] In one or more embodiments, the first copper busbar liner 5 is inserted into the first wiring cavity 101 along a first direction, and the first wire harness liner 6 is inserted into the first wiring cavity 101 along a second direction. The outer shell 1, located inside the first wiring cavity 101, is further provided with a first limiting rib distributed along the first direction and a first limiting rib distributed along the second direction, thereby allowing the copper busbar liner 5 located in the first wiring cavity 101 to be assembled and positioned by the first limiting rib, and the wire harness liner 6 located in the first wiring cavity 101 to be assembled and positioned by the first limiting rib.

[0056] Similarly, the second copper busbar liner 5 is inserted into the second wiring cavity 102 along the second direction, and the second wire harness liner 6 is inserted into the second wiring cavity 102 along the second direction. The outer shell 1, located inside the second wiring cavity 102, is also provided with a second limiting rib distributed along the second direction and a second limiting rib distributed along the second direction. This allows the copper busbar liner 5 located in the second wiring cavity 102 to be assembled and positioned using the second limiting rib, and the wire harness liner 6 located in the second wiring cavity 102 to be assembled and positioned using the second limiting rib.

[0057] In one or more embodiments, refer to Figure 2 , Figure 4 as well as Figure 6 As shown, the copper busbar liner 5, at its first end opposite the window, has a receiving groove along the second direction for inserting the wire harness liner 6. The wire harness liner 6, at its first end opposite the window, has an insertion part along the second direction that matches the shape of the receiving groove. The insertion part is embedded in the receiving groove to form an insertion connection, thereby restricting the movement of the copper busbar liner 5 along the first direction and preventing it from falling off due to pullback. The copper busbar liner 5, copper busbar 7, wire harness liner 6, and wire harness 8 are stacked along a third direction, and an assembly channel can be formed at the window that completely penetrates the copper busbar liner 5, copper busbar 7, wire harness liner 6, and wire harness 8 along the third direction. In one or more embodiments, an assembly nut is welded to the end of the wire harness 8 away from the wire harness liner 6. When forming a stacked structure, a threaded fastener (such as a nut) can be placed at the window to penetrate the assembly channel and be threadedly connected to the assembly nut. This allows for the detachable connection of the four stacked components, ensuring the electrical connection between the copper busbar 7 and the wire harness 8, while also improving the connection strength between the wire harness inner liner 6 and the copper busbar inner liner 5.

[0058] In one or more embodiments, refer to Figure 1 , Figure 2 , Figure 6 as well as Figure 7 As shown, the electrical connector includes two sealing components 9, which are respectively fitted onto the two wire harnesses 8 and snapped into the housing 1 to seal the first wiring cavity 101 and the second wiring cavity 102.

[0059] In this embodiment, the sealing component 9 and the wire harness 8 can be fitted together. The sealing component 9 is fitted onto the wire harness 8 and forms a snap-fit ​​with the outer shell 1, thereby sealing the gap between the wire harness 8 and the first wiring cavity 101, and sealing the gap between the wire harness 8 and the second wiring cavity 102, improving the dustproof performance of the electrical connector. It also facilitates the disassembly and maintenance of the sealing component 9.

[0060] In one or more embodiments, refer to Figure 1 , Figure 2 , Figure 6 as well as Figure 7 As shown, the outer casing 1 is provided with a limiting protrusion 11, and the sealing assembly 9 may include an inner shielding ring 91, an outer shielding ring 92, a spring ring 93, a sealing ring 94, a wire clamp 95, and a tail cap 96. The limiting protrusion 11 may be located on the periphery of the port distributed along the second direction of the first wiring cavity 101. For example, the limiting protrusion 11 and the outer casing 1 may be an integral structure.

[0061] The inner shielding ring 91 is fitted onto the wire harness 8, and the outer shielding ring 92 is fitted radially outside the inner shielding ring 91 to confine the wire harness 8 shielding layer within the area between it and the inner shielding ring 91. For example, during assembly, a portion of the wire harness 8 can be stripped of its outer insulation layer, exposing a section of the wire harness 8 shielding layer. This shielding layer can then be flipped up and placed over the inner shielding ring 91, and the outer shielding ring 92 can be fitted onto the wire harness 8 shielding layer and pressed firmly. Thus, electromagnetic wave shielding of the wire harness 8 can be achieved inside the wire harness liner 6 through the inner shielding ring 91 and the outer shielding ring 92, preventing external electromagnetic interference to the wire harness 8.

[0062] An annular groove 9201 is formed at the end of the outer shielding ring 92 away from the inner liner 6 of the wire harness. The spring coil 93 is embedded in the annular groove 9201 and is interference-fitted with the inner liner 6 of the wire harness. The annular groove 9201 can limit the spring coil 93 axially. The spring coil 93 can compact the shielding layer of the wire harness 8 by moving radially inward along the outer shielding ring 92, preventing the shielding layer of the wire harness 8 from coming out of the area between the outer shielding ring 92 and the inner shielding ring 91. The spring coil 93 can form an interference fit with the inner liner 6 by moving radially outward along the outer shielding ring 92. This can prevent the wire harness 8 from displacing in the second direction.

[0063] The sealing ring 94 is located at the end of the spring ring 93 away from the inner liner 6 of the wire harness and is fitted onto the wire harness 8. The wire clamp 95 is located at the end of the sealing ring 94 away from the inner liner 6 of the wire harness and is fitted onto the wire harness 8. The tail cap 96 is fitted radially outward of the wire clamp 95 and has a limiting hole 9601. When the limiting hole 9601 engages with the limiting protrusion 11 to form a snap-fit, the wire clamp 95 presses against the sealing ring 94, so that the sealing ring 94 abuts against the inner liner 6 of the wire harness to seal the inner shielding ring 91 and the outer shielding ring 92. During assembly, the tail cap 96, wire clamp 95, sealing ring 94, inner shielding ring 91, and outer shielding ring 92 can be sequentially fitted onto the wire harness 8.

[0064] After the spring coil 93 is assembled on the outer shielding ring 92 and the wire harness 8 is electrically connected to the copper busbar 7, the tail cap 96 is pushed towards the wire harness liner 6. The spring coil 93 enters the wire harness liner 6 and is press-fitted with it. At this time, the tail cap 96 presses the wire clamp 95, causing the wire clamp 95 to press the sealing ring 94 axially. The sealing ring 94 completely abuts against the port of the wire harness liner 6. Thus, when the limiting hole 9601 of the tail cap 96 engages with the limiting protrusion 11 on the outer shell 1 to form a snap-fit, the sealing ring 94 seals the wire harness liner 6. This improves the sealing performance of the sealing assembly 9 and also facilitates its assembly and disassembly.

[0065] In one or more embodiments, the wire harness 8 is provided with a wire core, an inner insulation layer, a wire harness 8 shielding layer, and an outer insulation layer in sequence from the inside to the outside. The outer shielding ring 92 and the inner shielding ring 91 can be made of copper alloy or aluminum alloy, etc.

[0066] Example 2

[0067] The first sealing member 2 is sleeved on the face cover 4, and the face cover 4 and the outer shell 1 at the first window 103 press the first sealing member 2 to form a sealed connection. And / or, the second sealing member 3 is sleeved on the face cover 4, and the face cover 4 and the outer shell 1 at the second window 104 press the second sealing member 3 to form a sealed connection.

[0068] In this embodiment, the first sealing element 2 and / or the second sealing element 3 can be sealing rings 94 made of elastic material. Correspondingly, the face cover 4 is provided with a protruding edge for the first sealing element 2 to be fitted, and / or, the face cover 4 is provided with a protruding edge for the second sealing element 3 to be fitted. Thus, when the face cover 4 is assembled with the outer shell 1, the face cover 4 forms a sealed connection between the face cover 4 and the outer shell 1 at the first window 103 by cooperating with the outer shell 1 at the first window 103 and pressing the first sealing element 2. And / or, the face cover 4 forms a sealed connection between the face cover 4 and the outer shell 1 at the second window 104 by cooperating with the outer shell 1 at the second window 104 and pressing the second sealing element 3. The first window 103 and the second window 104 are independent of each other, which greatly reduces the required size of the sealing ring 94, thereby improving the assembly yield of the electrical connector and improving the sealing and protection performance.

[0069] In one or more embodiments, the face cover 4 and the outer shell 1 can be detachably connected by means of threaded connection or other methods. For example, the face cover 4 and the outer shell 1 are fixed by screws, and the outer shell 1 can be made of aluminum.

[0070] This application also provides a battery pack, which may include the electrical connector described in any of the above utility model embodiments. The electrical connector included in the battery pack may be an integrated pass-through connector (IPT), used to realize electrical connections between various components within the battery pack and between the battery pack and external devices.

[0071] This application also provides a vehicle, which includes a battery pack as described in the above utility model embodiments, or the vehicle may include an electrical connector as described in any of the above utility model embodiments. The motor controller, power distribution unit, and other devices in the vehicle can transmit electrical energy through the electrical connector.

[0072] In summary, this utility model discloses an electrical connector, a battery pack, and a vehicle. This utility model embodiment may include a housing 1, a first sealing element 2, a second sealing element 3, and a cover 4. The housing 1 includes a first wiring cavity 101, a second wiring cavity 102, a first window 103, and a second window 104. The first wiring cavity 101 and the second wiring cavity 102 are independent of each other. The first window 103 communicates with the first wiring cavity 101, and the second window 104 communicates with the second wiring cavity 102. The first sealing element 2 is located at the first window 103 for a sealing connection with the housing 1. The second sealing element 3 is located at the second window 104 for a sealing connection with the housing 1. The cover 4 is connected to the housing 1 to close the first window 103 and the second window 104. Thus, the positive and negative electrical connection units are independently routed through the first wiring cavity 101 and the second wiring cavity 102. The independence of the first window 103 and the second window 104 significantly reduces the required sealing element size. This improves the assembly yield of the electrical connector and enhances its sealing and protective performance.

[0073] Terminology Explanation

[0074] In this application, sealing assembly 9 refers to a collection of parts used to achieve the sealing function;

[0075] In this application, "multiple" refers to two or more.

[0076] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0078] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0079] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electrical connector, characterized in that, The electrical connector includes: The housing includes a first wiring cavity, a second wiring cavity, a first window, and a second window. The first wiring cavity and the second wiring cavity are independent of each other. The first window is connected to the first wiring cavity, and the second window is connected to the second wiring cavity. A first seal is located at the first window to provide a sealing connection with the housing; A second seal is located at the second window to provide a sealing connection with the housing; A cover, which is connected to the outer shell, is used to close the first window and the second window.

2. The electrical connector according to claim 1, characterized in that, The first seal is embedded within the first window and is pressed against the first window to form a seal; and / or, The second seal is embedded in the second window and is pressed and sealed against the second window.

3. The electrical connector according to claim 1 or 2, characterized in that, The first wiring cavity has a first bend, and the first window is disposed at the first bend; and / or, The second wiring cavity has a second bend, and the second window is located at the second bend.

4. The electrical connector according to claim 3, characterized in that, The angle at the first turn of the first wiring cavity is the same as the angle at the second turn of the second wiring cavity; wherein... At the first bend, the first wiring cavity bends from the first direction toward the second direction, the first direction being perpendicular to the second direction. Furthermore, the first window and / or the second window are arranged along a third direction, which is perpendicular to the first direction and the second direction, respectively.

5. The electrical connector according to claim 1, characterized in that, The electrical connector also includes: Two copper busbar liners are respectively embedded in the first wiring cavity and the second wiring cavity; Two wire harness liners are respectively fitted into the first wiring cavity and the second wiring cavity; and... The copper busbar liner and the wire harness liner are inserted one by one, and the first window and the second window are respectively provided at the insertion points of the copper busbar liner and the wire harness liner.

6. The electrical connector according to claim 5, characterized in that, The electrical connector also includes: Two copper busbars are embedded in the inner lining of two copper busbars and extend to the first window and the second window respectively. Two wire harnesses are embedded in two wire harness liners and extend to the first window and the second window respectively. The copper busbar liner, the copper busbar, the wire harness liner, and the wire harness are stacked in a third direction at the first window and / or the second window and form a detachable connection.

7. The electrical connector according to claim 6, characterized in that, The electrical connector includes two sealing components, which are respectively fitted onto the two wire harnesses and snapped into the housing to seal the first wiring cavity and the second wiring cavity.

8. The electrical connector according to claim 7, characterized in that, The outer casing is provided with a limiting protrusion, and the sealing assembly includes: An inner shielding ring, which is fitted onto the wire harness; An outer shielding ring is fitted radially outside the inner shielding ring to confine the wire harness shielding layer within the area between the outer shielding ring and the inner shielding ring. An annular groove is provided at the end of the outer shielding ring away from the wire harness liner. A spring coil, which is embedded in the annular groove and has an interference fit with the inner lining of the wire harness; A sealing ring is located at the end of the spring ring away from the inner liner of the wire harness and is fitted onto the wire harness; A wire clamp is located at the end of the sealing ring away from the inner liner of the wire harness and is fitted onto the wire harness; The tail cap is fitted on the radial outer side of the wire clamp, and the tail cap has a limiting hole. When the limiting hole and the limiting protrusion cooperate to form a snap-fit, the wire clamp presses against the sealing ring so that the sealing ring abuts against the inner shielding ring and the outer shielding ring of the wire harness liner to seal them.

9. A battery pack, characterized in that, The battery pack includes an electrical connector as described in any one of claims 1-8.

10. A vehicle, characterized in that, The vehicle includes the battery pack as claimed in claim 9, or the vehicle includes the electrical connector as claimed in any one of claims 1-8.

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