High-voltage distribution box, battery pack and vehicle

Abstract

The utility model relates to a high-voltage distribution box, a battery pack and a vehicle, the high-voltage distribution box comprises a shell, a connector and a wire harness, the wire harness is fixed to the shell through the connector, the wire harness extends into the shell through the connector and is electrically connected with a connecting bar in the shell, and the connecting bar is arranged in the shell. The high-voltage distribution box can improve the reliability of wire harness connection.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle parts technology, specifically to a high-voltage distribution box, a battery pack, and a vehicle. Background Technology

[0002] In related technologies, the electrical connection of high-voltage distribution boxes typically adopts a connector assembly structure. That is, on the outside of the high-voltage distribution box, the male end of the connector is inserted into the female end to achieve electrical connection between the wiring harness and the high-voltage distribution box. Because the male and female connection points are easily shaken by external influences, connection failure or even terminal detachment may occur. Utility Model Content

[0003] The purpose of this disclosure is to provide a high-voltage distribution box, a battery pack, and a vehicle that improves the reliability of wiring harness connections.

[0004] To achieve the above objectives, this disclosure provides a high-voltage distribution box, which includes a housing, a connector, and a wiring harness. The wiring harness is fixed to the housing via the connector, extends into the housing via the connector, and is connected to a power outlet in the housing.

[0005] Optionally, the connector includes a fixed base and a connecting base. The fixed base is disposed on the housing and has a first through hole for the wire harness to pass through. The connecting base is detachably connected to the fixed base and has a second through hole for the wire harness to pass through.

[0006] Optionally, one of the fixing base and the connecting base is provided with a first snap-fit ​​member, and the other of the fixing base and the connecting base is provided with a second snap-fit ​​member, wherein the first snap-fit ​​member and the second snap-fit ​​member are engaged in a snap-fit ​​relationship.

[0007] Optionally, the first snap-fit ​​component is configured as a protrusion, and the second snap-fit ​​component is configured as a slot, wherein the protrusion is snapped into the slot.

[0008] Optionally, the protrusion is provided on the fixed seat, and the connecting seat includes a sleeve portion sleeved on the fixed seat, the sleeve portion having a through groove, the through groove being configured as the slot.

[0009] Optionally, the protrusion has a first side and a second side disposed opposite to each other, the first side being closer to the housing than the second side, the first side abutting against the inner wall surface of the slot, and the protrusion also having a guide slope, the guide slope being higher on the first side than on the second side.

[0010] Optionally, the housing has a first mounting hole, and a fixing ring is provided on the outer side of the housing. The fixing ring has a second mounting hole that communicates with the first mounting hole, and the connector is partially disposed in the fixing ring.

[0011] Optionally, one end of the wiring harness is connected to the connector bar, and the other end is connected to the electric drive, battery pack, or oil pump.

[0012] According to a second aspect of this disclosure, a battery pack is provided, the battery pack including the high-voltage distribution box as described above.

[0013] According to a third aspect of this disclosure, a vehicle is provided, including the battery pack described above.

[0014] Through the above technical solution, when it is necessary to electrically connect the wire harness to the connector within the housing to achieve power transmission and / or signal transmission, the wire harness is extended into the housing through a connector, allowing the terminals of the wire harness to connect to the connector within the housing. Since the connector is fixed to the housing, it can support and fix the wire harness, preventing any shaking of the wire harness from affecting the connection between the wire harness and the connector. With this structure, the wire harness extends directly into the housing through the connector and connects to the connector, ensuring the reliability of the wire harness connection. This avoids the situation where the connector terminals and wire harness terminals are connected externally using a plug-in method, which is easily affected by external environmental factors and may shake, leading to the plug coming loose and affecting the reliability of the electrical connection. Furthermore, the connector can electrically isolate the wire harness from the external environment and provide waterproofing and dustproofing, preventing electrical faults caused by the external environment.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-voltage distribution box according to an embodiment of this disclosure;

[0018] Figure 2 This is a cross-sectional view of a high-voltage distribution box provided according to an embodiment of this disclosure;

[0019] Figure 3 This is a schematic diagram of the housing structure of a high-voltage distribution box according to an embodiment of the present disclosure;

[0020] Figure 4This is a schematic diagram of the connector and wiring harness structure of a high-voltage distribution box according to an embodiment of the present disclosure;

[0021] Figure 5 yes Figure 4 A magnified view of part A;

[0022] Figure 6 This is a schematic diagram of the connector and wiring harness structure of a high-voltage distribution box provided according to an embodiment of the present disclosure from another perspective.

[0023] Explanation of reference numerals in the attached figures

[0024] 1-Housing, 11-First mounting hole, 12-Retaining ring, 121-Second mounting hole, 122-Stepped surface, 2-Connector, 21-Fixing seat, 211-First snap-fit, 2111-First side, 2112-Second side, 2113-Guide slope, 212-Connecting ear, 22-Connecting seat, 221-Second snap-fit, 2211-Sleeve portion, 23-Third seal, 3-Wire harness, 31-Terminal, 10-Connecting row. Detailed Implementation

[0025] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0026] In this disclosure, unless otherwise stated, the directional terms "inner" and "outer" refer to "inner" and "outer" relative to the contour of the corresponding component itself. Furthermore, the use of terms such as "first" and "second" is intended to distinguish different components and does not imply sequentiality or importance. Additionally, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings denote the same elements. Those skilled in the art should understand that the above definitions are for explanation and illustration only and should not be construed as limiting the scope of this disclosure.

[0027] According to a specific embodiment of this disclosure, refer to Figures 1 to 6 As shown, a high-voltage distribution box is provided. The high-voltage distribution box includes a housing 1, a connector 2, and a wiring harness 3. The wiring harness 3 is fixed to the housing 1 through the connector 2. The wiring harness 3 extends into the housing 1 through the connector 2 and is electrically connected to the connection bar 10 in the housing 1.

[0028] Through the above technical solution, when it is necessary to electrically connect the wire harness 3 to the connection bar 10 inside the housing 1 to achieve power transmission and / or signal transmission, the wire harness 3 is extended into the housing 1 through the connector 2 so that the terminals 31 of the wire harness 3 can connect to the connection bar 10 inside the housing 1. Since the connector 2 is fixed to the housing 1, the connector 2 can support and fix the wire harness 3, so as to prevent the wire harness 3 from shaking and affecting the connection between the wire harness 3 and the connection bar 10. With the above structure, the wire harness 3 extends directly into the housing 1 through the connector 2 and connects to the connection bar 10, ensuring the reliability of the wire harness 3 connection. This avoids the situation where the terminals of the connector 2 and the terminals of the wire harness 3 are connected by a plug-in method outside the housing 1, which is easily affected by the external environment and may shake, causing the plug to fall off and affecting the reliability of the electrical connection. In addition, the connector 2 can electrically isolate the wire harness 3 from the external environment and play a role in waterproofing and dustproofing, so as to avoid electrical failure of the wire harness 3 caused by the external environment.

[0029] The wiring harness 3 connected to the connecting busbar 10 may be the wiring harness 3 of an electric drive, battery pack, or oil pump, or the wiring harness 3 of other high-voltage components that require power transmission. This disclosure does not impose any specific restrictions on this.

[0030] According to the embodiments provided in this disclosure, refer to Figure 4 and Figure 6 As shown, connector 2 includes a fixing base 21 and a connecting base 22. The fixing base 21 is disposed on the housing 1 and has a first through hole for the wire harness 3 to pass through. The connecting base 22 is detachably connected to the fixing base 21 and has a second through hole for the wire harness 3 to pass through. Thus, the wire harness 3 can pass through the first and second through holes and extend into the housing 1, allowing the terminal 31 to connect with the connecting strip 10. The fixing base 21 and the connecting base 22 provide support and fixation for the wire harness 3, thereby fixing the position of the wire harness 3 relative to the housing 1 and ensuring the stability of the wire harness 3 connection. Furthermore, by providing the connecting base 22, multiple seals can be achieved for connector 2, preventing the ingress of liquids and impurities and ensuring the electrical performance and reliability of connector 2. By detachably connecting the connector 22 to the fixing base 21, the wire harness 3 can be fixed by fixing the connector 22 to the fixing base 21 after the wire harness 3 passes through the first through hole and the second through hole, thereby improving the installation efficiency of the wire harness 3. At the same time, the wire harness 3 can be inspected or maintained by removing the connector 22, thereby reducing maintenance costs.

[0031] According to the embodiments provided in this disclosure, refer to Figures 4 to 6As shown, one of the fixing base 21 and the connecting base 22 is provided with a first locking member 211, and the other of the fixing base 21 and the connecting base 22 is provided with a second locking member 221. The first locking member 211 and the second locking member 221 engage with each other. In this way, after the wire harness 3 passes through the first through hole and the second through hole, the first locking member 211 and the second locking member 221 can quickly connect and lock the connecting base 22, improving the installation efficiency of the wire harness 3 and the assembly efficiency of the high-voltage distribution box. In addition, the connecting base 22 can provide additional support for the wire harness 3, further ensuring the reliability of the connection of the wire harness 3.

[0032] According to the embodiments provided in this disclosure, refer to Figure 4 and Figure 5 As shown, the first snap-fit ​​member 211 is constructed as a protrusion, and the second snap-fit ​​member 221 is constructed as a slot, with the protrusion snapping into the slot. In this way, by snapping the protrusion into the slot, the connector 22 and the fixing seat 21 can be fixed together. The cooperation between the protrusion and the slot provides good vibration and impact resistance, thereby ensuring the stability of the connection between the connector 22 and the fixing seat 21 and preventing the reliability of the electrical connection of the wiring harness 3 from being affected by the external environment.

[0033] According to the embodiments provided in this disclosure, refer to Figure 4 and Figure 5 As shown, a protrusion is provided on the fixed base 21, and the connecting base 22 includes a sleeve portion 2211 sleeved on the fixed base 21. A through groove is provided on the sleeve portion 2211, and the through groove is configured as a locking groove. Thus, when engaging the connecting base 22 and the fixed base 21, personnel can observe the position of the protrusion and the locking groove through the through groove to align the protrusion and the locking groove and engage them, achieving precise positioning during the connection process between the connecting base 22 and the fixed base 21. This improves the installation efficiency between the connecting base 22 and the fixed base 21. By providing the sleeve portion 2211 sleeved on the fixed base 21, circumferential fixation between the connecting base 22 and the fixed base 21 is achieved, improving the reliability of the connection between the connecting base 22 and the fixed base 21.

[0034] The fixed base 21 and the connecting base 22 can be provided with corresponding slots and protrusions on two or more opposite sides to achieve circumferential connection and fixation of the connecting base 22 and the fixed base 21, thereby improving the reliability of the connection between the connecting base 22 and the fixed base 21.

[0035] According to the embodiments provided in this disclosure, refer to Figure 5As shown, the protrusion has a first side 2111 and a second side 2112 disposed opposite to each other. The first side 2111 is closer to the housing 1 than the second side 2112. The first side 2111 abuts against the inner wall surface of the slot. The protrusion also has a guide slope 2113, the height of which is greater on the first side 2111 than on the second side 2112. Thus, the guide slope 2113 guides the movement between the slot and the protrusion, allowing the protrusion to gradually engage with the slot along the guide slope 2113 until the second side 2112 abuts against the inner wall surface of the slot, thereby achieving engagement and improving assembly efficiency. The heights of the first side 2111 and the second side 2112 refer to the height of the protrusion in the radial direction relative to the fixed base 21.

[0036] According to the embodiments provided in this disclosure, a first sealing element is provided in the first through hole, the first sealing element is sleeved on the wire harness 3, and provides a seal between the wire harness 3 and the fixing seat 21; and / or, a second sealing element is provided in the second through hole, the second sealing element is sleeved on the wire harness 3, and provides a seal between the wire harness 3 and the connector 22. In this way, the first sealing element can seal the wire harness 3 passing through the first through hole between the connector 21 and the fixing seat 21, preventing moisture and impurities from entering the connector 2 and causing electrical failures. The second sealing element can seal the wire harness 3 passing through the second through hole between the connector 22 and the connector 22, preventing moisture and impurities from entering the fixing seat 21. Furthermore, the second sealing element, in conjunction with the first sealing element, can achieve multiple seals for the connector 2, thereby improving the reliability and service life of the connector 2, reducing electrical failures caused by moisture and impurities, and thus reducing the maintenance cost of the connector 2.

[0037] Both the first and second sealing elements can be constructed as sealing rings. These sealing rings can be fitted around the circumference of the wire harness 3 passing through the connector 2. When the wire harness 3 passes through the first through hole, the first sealing element, under compressive force, abuts against the circumference of the wire harness 3, causing the sealing ring to deform and seal the gap between the first through hole and the wire harness 3, achieving waterproofing and dustproofing. Simultaneously, during the deformation and compression process of the sealing ring, a continuous radial clamping force is generated on the wire harness 3, thereby fixing the position between the wire harness 3 and the fixing seat 21. When the wire harness 3 passes through the second through hole, the second sealing element, under compressive force, abuts against the circumference of the wire harness 3, causing the sealing ring to deform and seal the gap between the second through hole and the wire harness 3, further achieving waterproofing and dustproofing. Simultaneously, during the deformation and compression process of the sealing ring, a continuous radial clamping force is generated on the wire harness 3, thereby fixing the position between the wire harness 3 and the connecting seat 22.

[0038] According to the embodiments provided in this disclosure, refer to Figure 4 and Figure 6 As shown, the mounting base 21 includes a connecting ear 212, which is connected to the housing 1 by a fastener. Thus, the connecting ear 212 provides a mounting point for the connection between the mounting base 21 and the housing 1, reducing the installation time and difficulty of the mounting base 21 and improving the ease of installation. The fastener can be a bolt, and the housing 1 can have threaded holes corresponding to the bolts to achieve a detachable connection of the mounting base 21, allowing for disassembly, inspection, or maintenance of the connector 2. Alternatively, other fasteners capable of achieving a detachable connection can be used; this disclosure does not limit the choice.

[0039] According to the embodiments provided in this disclosure, refer to Figure 3 As shown, the housing 1 has a first mounting hole 11, and a fixing ring 12 is also provided on the outer side of the housing 1. The fixing ring 12 has a second mounting hole 121 that communicates with the first mounting hole 11, and the connector 2 is partially disposed in the fixing ring 12. In this way, since the fixing ring 12 is located on the outer side of the housing 1, the length of the first mounting hole 11 is extended, so that the fixing ring 12 and the housing 1 can jointly support and fix the connector 2, ensuring the stability of the connector 2 and thus improving the reliability of the wiring harness 3 installation.

[0040] According to the embodiments provided in this disclosure, refer to Figure 4 As shown, a third seal 23 is provided on the connector 2, which provides a seal between the retaining ring 12 and the connector 2. Thus, the third seal 23 is positioned between the retaining ring 12 and the connector 2 to seal the gap between the fixing seat 21 and the second mounting hole 121, preventing moisture or impurities from entering the housing 1 through the second mounting hole 121 and affecting the reliability of the electrical connection.

[0041] According to the embodiments provided in this disclosure, refer to Figure 3 As shown, a stepped surface 122 is formed between the housing 1 and the fixing ring 12, and the third sealing member 23 abuts against the stepped surface 122. In this way, the stepped surface 122 can limit the third sealing member 23, preventing the third sealing member 23 from sliding into the housing 1 relative to the fixing seat 21, which would affect the sealing effect and the reliability of the electrical connection inside the housing 1.

[0042] According to the embodiments provided in this disclosure, refer to Figure 1 and Figure 2As shown, multiple connectors 2 are spaced circumferentially around the housing 1, and at least one wire harness 3 is threaded through each connector 2. This allows for the connection of electrical components in different directions within the high-voltage distribution box, enabling the housing 1 to adapt to various spatial layouts and installation requirements. Furthermore, in situations where interior space is limited in vehicles or equipment, multi-directional connections utilize space more effectively, avoiding space congestion caused by wire harnesses 3 being concentrated in one direction. Additionally, by placing connectors 2 on multiple sides of the housing 1, a compact design of the high-voltage distribution box can be achieved, optimizing the overall layout.

[0043] According to the embodiments provided in this disclosure, see the following... Figure 1 and Figure 2 As shown, one end of the wiring harness 3 is connected to the connector 10, and the other end is connected to the electric drive, battery pack, or oil pump. This allows the high-voltage distribution box to centrally manage the high-voltage power output from the battery pack and distribute it according to the needs of different components. Furthermore, when three wiring harnesses 3 are connected to the side of the housing 1, the three wiring harnesses 3 can be connected to the electric drive, battery pack, and oil pump respectively.

[0044] Below, for reference Figures 1 to 6 As shown, this disclosure will provide a detailed description of the specific usage process of the high-voltage distribution box in conjunction with the above-described specific embodiments. When it is necessary to electrically connect the wiring harness 3 of electrical components such as battery packs, electric drives, or oil pumps to the connecting strip 10 inside the housing 1, the wiring harness 3 is passed through the second through hole on the connecting seat 22 and the first through hole on the fixing seat 21. The slot on the connecting seat 22 is aligned with the protrusion on the fixing seat 21 and engaged. The terminals at the end of the wiring harness 3 are then connected to the connecting strip 10 inside the housing 1, thereby achieving the connection and fixation of the wiring harness 3 and ensuring the reliability of the wiring harness 3 connection.

[0045] According to a second aspect of this disclosure, a battery pack is provided, comprising the high-voltage distribution box as described above. This battery pack possesses all the beneficial effects of the aforementioned high-voltage distribution box, which will not be elaborated upon herein.

[0046] According to a third aspect of this disclosure, a vehicle is provided, including the battery pack described above. The vehicle possesses all the beneficial effects of the battery pack described above, which will not be elaborated upon herein.

[0047] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0048] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0049] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A high-voltage distribution box, characterized in that, The high-voltage distribution box includes a housing, a connector, and a wiring harness. The wiring harness is fixed to the housing via the connector, extends into the housing via the connector, and is connected to the power outlet in the housing.

2. The high-voltage distribution box according to claim 1, characterized in that, The connector includes a fixed base and a connecting base. The fixed base is disposed on the housing and has a first through hole for the wire harness to pass through. The connecting base is detachably connected to the fixed base and has a second through hole for the wire harness to pass through.

3. The high-voltage distribution box according to claim 2, characterized in that, One of the fixed base and the connecting base is provided with a first snap-fit ​​component, and the other of the fixed base and the connecting base is provided with a second snap-fit ​​component, and the first snap-fit ​​component and the second snap-fit ​​component are engaged in a snap-fit ​​relationship.

4. The high-voltage distribution box according to claim 3, characterized in that, The first snap-fit ​​component is a protrusion, and the second snap-fit ​​component is a slot, wherein the protrusion is snapped into the slot.

5. The high-voltage distribution box according to claim 4, characterized in that, The protrusion is provided on the fixed base, and the connecting base includes a sleeve portion sleeved on the fixed base. The sleeve portion has a through groove, and the through groove is constructed as the slot.

6. The high-voltage distribution box according to claim 5, characterized in that, The protrusion has a first side and a second side disposed opposite to each other. The first side is closer to the housing than the second side. The first side abuts against the inner wall surface of the slot. The protrusion also has a guide slope. The height of the guide slope on the first side is higher than its height on the second side.

7. The high-voltage distribution box according to any one of claims 1-6, characterized in that, The housing has a first mounting hole, and a fixing ring is provided on the outer side of the housing. The fixing ring has a second mounting hole that communicates with the first mounting hole, and the connector is partially disposed in the fixing ring.

8. The high-voltage distribution box according to claim 1, characterized in that, One end of the wiring harness is connected to the connector bar, and the other end is connected to the electric drive, battery pack, or oil pump.

9. A battery pack, characterized in that, The battery pack includes a high-voltage distribution box as claimed in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the battery pack as described in claim 9.

Images