A high-voltage wire harness assembly for a vehicle air conditioner

Abstract

The utility model discloses a kind of vehicle air conditioner high-voltage wiring harness assembly, including wiring harness body, first connector and high-voltage connector, the wiring harness body includes wire and the corrugated pipe of being sleeved to the outside of wire;The first connector includes first shell and first terminal, wire is inlaid in first shell and the one end of first terminal is crimped wire;The high-voltage connector includes second terminal and connector shell, second terminal is inserted on connector shell and fixed connection wire other end, while the end of wire is penetrated connector shell and is sleeved with shielding kit, shielding kit is limited by ground terminal, ground terminal is fixed on connector shell by end cap.The device is by increasing shielding kit and ground terminal, electromagnetic interference signal generated in the working process of wiring harness is grounded by shielding kit and eliminated, to reduce line electromagnetic interference, improve the electromagnetic compatibility (EMC) performance of whole vehicle circuit.

Description

Technical Field

[0001] This utility model relates to the field of improved wiring harness design technology, and in particular to a high-voltage wiring harness assembly for automotive air conditioning. Background Technology

[0002] High-voltage wiring harnesses are cable systems used in electric vehicles and new energy vehicles to transmit high-voltage current. They are mainly composed of connectors, terminals, wires, and covers. They are primarily used to connect batteries, motors, and electronic control systems, such as connecting high-voltage battery packs to high-voltage electrical equipment like electric air conditioners and motor controllers, and transmitting the battery pack's power to these devices.

[0003] When the high-voltage wiring harness used in new energy vehicles is energized, its shielding structure effectively shields against external signal interference. The shielding layer itself generates a stable magnetic field, protecting against electromagnetic fields. However, if the high-voltage wiring harness is damaged, a strong unstable magnetic field, or electromagnetic interference signal, will be generated around it. Over time, this can affect the operation of the new energy vehicle. Furthermore, the vehicle will experience bumps during operation, which can further increase wear and tear on the damaged area of ​​the high-voltage wiring harness and the vehicle body, reducing its lifespan.

[0004] In the prior art, patent CN114744454A discloses a high-voltage wiring harness assembly for new energy vehicles, relating to the technical field of automotive wiring harnesses. It includes a connector, a high-voltage wiring harness, terminals, and a constraint sleeve. Several high-voltage wiring harnesses are provided and vertically connected to one side of the connector. Several terminals are provided and correspondingly connected to the free ends of each high-voltage wiring harness. The constraint sleeve is disposed between each high-voltage wiring harness. C-shaped mounting slots are evenly distributed on the sidewall of the constraint sleeve. A triangular mounting slot is provided between two adjacent mounting slots. A rectangular through slot is provided between adjacent mounting slots and the mounting slot. "Ω"-shaped mounting strips are mounted at both ends of each mounting slot. "∪"-shaped buffer pieces are evenly distributed on the sidewall of each mounting strip. The high-voltage wiring harness assembly for new energy vehicles in this invention features ingenious design, compact structure, convenient insertion, and automatic temperature regulation.

[0005] Patent CN119673545B discloses a high-voltage wiring harness assembly for new energy vehicles, including a wiring harness body with connectors installed at both ends. The wiring harness body, from the inside out, comprises a conductor layer, an insulation layer, a protective layer, a shielding layer, and a sheath layer. A take-up and put-down mechanism is used to take up and put down the wiring harness body. The mechanism includes a sleeve fixedly fitted outside the wiring harness body, a slip ring slidably fitted outside the sleeve, a support plate fixedly welded to the upper end of the slip ring, a vibration sensor embedded in the support plate, and a mounting plate slidably connected to the upper end of the support plate. The mounting plate has an adjustment mechanism for adjusting the support plate. A compensation mechanism is used to compensate for the offset of the wiring harness body caused by vibration. The compensation mechanism includes two grooves located outside the sleeve. Compared with the prior art, this invention can monitor the wiring harness, extend its service life, and compensate for the length of the wiring harness without affecting its transmission efficiency.

[0006] In order to solve one of the above problems, this application provides a high-voltage wiring harness assembly for automotive air conditioning. Utility Model Content

[0007] The purpose of this utility model is to solve the problems existing in the prior art and propose a high-voltage wiring harness assembly for automotive air conditioning. By adding a shielding kit and a grounding terminal, the electromagnetic interference signals generated during the operation of the wiring harness are eliminated by grounding the shielding kit, thereby reducing electromagnetic interference and improving the electromagnetic compatibility (EMC) performance of the entire vehicle circuit.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: a high-voltage wiring harness assembly for automotive air conditioning, comprising a wiring harness body, a first connector, and a high-voltage connector. The wiring harness body includes wires and a corrugated tube sleeved on the outside of the wires. The first connector includes a first housing and a first terminal. The wires are embedded in the first housing, and the first terminal crimps one end of the wires. The high-voltage connector includes a second terminal and a connector housing. The second terminal is inserted into the connector housing and fixedly connects to the other end of the wires. Simultaneously, the end of the wires passes through the connector housing and is fitted with a shielding kit. The shielding kit is limited by a grounding terminal, which is fixed to the connector housing by an end cap. The grounding terminal also limits the shielding kit at its mounting position on the wires, preventing it from moving. The shielding kit is used to eliminate electromagnetic interference signals generated at one end of the high-voltage connector by connecting to the ground via the grounding terminal, thereby improving the electromagnetic interference of the corresponding circuit of the entire high-voltage wiring harness assembly and making the circuit work more smoothly.

[0009] Furthermore, the shielding kit described above includes a shielding cover and a pressure cap, with the pressure cap fitted over the outside of the shielding cover. The shielding cover consists of one or more layers of metal mesh and is used to directly cover the outside of the wire.

[0010] Furthermore, as described above, one end of the grounding terminal is fixed inside the connector housing and abuts against the gland, while the other end of the grounding terminal extends to the outside of the connector housing and is grounded, thereby eliminating interference signals generated on the shielding kit by grounding the grounding terminal.

[0011] Furthermore, as described above, the pressure cover consists of two cylinders of different diameters. The grounding terminal is machined with an arc-shaped groove that engages with the pressure cover. After the grounding terminal is fixed, the limiting groove clamps the pressure cover, thus meeting the limiting and fixing requirements of the shielding kit.

[0012] Furthermore, as described above, the connector housing is provided with positioning holes, and an internal threaded component is embedded in the positioning holes. The end cap is screwed to connect the grounding terminal and the internal threaded component. The internal threaded component serves as an insert used for injection molding of the connector housing, reducing the difficulty of injection mold processing and manufacturing, and eliminating the need for thread injection molding core pulling operation.

[0013] Furthermore, as described above, the connector housing is provided with a limiting groove, in which a wire is fitted and fixed.

[0014] Furthermore, as described above, the connector housing is provided with a second insertion hole, into which the fisheye end of the second terminal is inserted, and the other end of the second terminal is crimped onto the end of the wire.

[0015] Furthermore, as described above, the connector housing is also provided with a third insertion hole, into which a third terminal is inserted.

[0016] Furthermore, as described above, the wire is provided with conductors, insulating sleeves, protective sleeves and shielding mesh sleeves in sequence from the inside out. The shielding mesh sleeve is used to isolate interference signals generated when the wire harness body is working, and a protective sleeve is provided at the contact point between the end of the corrugated tube and the connector housing.

[0017] Furthermore, as described above, the wire harness body is provided with a sheath and multiple cable ties, and a positioning clip is provided on the outside of the first connector.

[0018] Compared with the prior art, the beneficial effects of this utility model are: by adding a shielding kit and a grounding terminal, the electromagnetic interference signal generated during the operation of the wiring harness is eliminated by grounding the shielding kit, thereby reducing electromagnetic interference of the line and improving the electromagnetic compatibility (EMC) performance of the whole vehicle circuit. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is an exploded view of the present invention;

[0021] Figure 3 This is a rear view of the present invention;

[0022] Figure 4 This is a perspective view of the high-voltage connector of this utility model;

[0023] Figure 5 for Figure 4 An explosion diagram;

[0024] Figure 6 This is a rear view of the high-voltage connector of this utility model.

[0025] In the diagram: 1. High-voltage connector; 10. Protective sleeve; 11. Connector housing; 110. Positioning hole; 111. Limiting groove; 112. Second insertion hole; 113. Third insertion hole; 12. Second terminal; 13. Third terminal; 14. Wire; 15. Shielding kit; 16. End cap; 17. Grounding terminal; 2. Wire harness body; 3. Cable tie; 4. Sheath; 5. First connector; 6. Positioning clip. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," "set," etc., should be interpreted broadly. For example, when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "installed" on another element, it can be directly installed on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within the two elements.

[0028] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Reference Figure 1-6 As shown, this utility model discloses a high-voltage wiring harness assembly for automotive air conditioning, used to connect to the power supply of an automotive air conditioner. It includes a wiring harness body 2, a first connector 5, and a high-voltage connector 1. The first connector 5 is used to plug into the interface of the automotive air conditioner, and the high-voltage connector 1 is used to plug into the power supply battery and its associated circuit board interface. The wiring harness body 2 includes a wire 14 and a corrugated tube sleeved around the wire 14. The wire 14 has the functions of conducting current and providing insulation shielding protection, while the corrugated tube serves as an outer layer of protection and buffer. The first connector 5 includes a first housing and a first... The first connector 5, consisting of a terminal, a first housing containing a wire 14, and a first terminal crimping one end of the wire 14, is used to connect the wire harness body 2 and facilitate insertion and connection operations and current conduction. The high-voltage connector 1 includes a second terminal 12 and a connector housing 11. The second terminal 12 is inserted into the connector housing 11 and fixedly connects the other end of the wire 14. The high-voltage connector 1 is used to connect the wire harness body 2 and facilitate insertion and connection operations and current conduction. Simultaneously, the end of the wire 14 passes through the connector housing 11 and is fitted with a shielding sleeve 15. (Refer to...) Figure 5 It can be seen that the shielding kit 15 is limited by the grounding terminal 17, which is fixed to the connector housing 11 by the end cover 16. At the same time, the grounding terminal 17 limits the shielding kit 15 at the mounting position on the wire 14, making it fixed. The shielding kit 15 is used to eliminate the electromagnetic interference signal generated at one end of the high-voltage connector 1 by connecting it to the ground through the grounding terminal 17, thereby improving the electromagnetic interference of the corresponding line of the entire high-voltage wiring harness assembly and making the line work more smoothly.

[0032] Example 2

[0033] Reference Figure 1-6 As shown, based on the technical solution of Embodiment 1, a high-voltage wiring harness assembly for automotive air conditioning, with regard to the specific structural design of the shielding kit 15, refers to... Figure 5It is understood that the shielding kit 15 includes a shielding cover and a pressure cover. The pressure cover is fitted outside the shielding cover. The shielding cover is composed of one or more layers of metal mesh and is used to directly cover the outside of the wire 14. The pressure cover is composed of two cylinders with different diameters and is made of conductive metal such as copper. The pressure cover is directly fitted outside the shielding cover to cover and limit the metal mesh and transmit electromagnetic signals. In addition, the grounding terminal 17 is machined with an arc-shaped groove that engages with the pressure cover. After the grounding terminal 17 is fixed, the limiting groove 111 clamps the pressure cover. That is, the grounding terminal 17 limits and locks the pressure cover and can conduct the electromagnetic signal transmitted by the pressure cover to the ground, thus meeting the limiting and fixing requirements of the shielding kit 15.

[0034] Furthermore, regarding the specific structural design of the grounding terminal 17, refer to... Figure 5 It is understood that one end of the grounding terminal 17 is fixed inside the connector housing 11 and abuts against the pressure cover, and the other end of the grounding terminal 17 extends to the outside of the connector housing 11 and is grounded, thereby increasing the grounding function of the shielding kit 15 and the grounding terminal 17. This is used to connect the electromagnetic interference signals generated during the operation of the high-voltage line harness through the shielding cover, the pressure cover and the grounding terminal 17. Finally, the other end of the grounding terminal 17 extends to the outside of the connector housing 11 and is grounded and discharged, thereby improving the electromagnetic interference situation of the line.

[0035] Example 3

[0036] Reference Figure 1-6 As shown, based on the technical solution of the above embodiments, a high-voltage wiring harness assembly for automotive air conditioning, with regard to the specific structural design of the high-voltage connector 1, refers to... Figure 4-6 As can be seen, the connector housing 11 is provided with a positioning hole 110, and an internally threaded component is embedded in the positioning hole 110. The end cap 16 is screwed to connect the grounding terminal 17 and the internally threaded component. The internally threaded component is made of metal and is used as an insert to form an integral part with the connector housing 11 through injection molding. This reduces the difficulty of injection mold design and demolding process for the connector housing 11, eliminates the need for threaded injection molding core pulling operation, and reduces manufacturing costs. In addition, both the end cap 16 and the grounding terminal 17 are machined with through holes. The screw passes through the end cap 16 and the grounding terminal 17 in sequence and connects to the internally threaded component, that is, fixing the grounding terminal 17 to the connector housing 11. At the same time, the arc-shaped groove of the grounding terminal 17 locks the pressure cap, fixing the shielding kit 15 inside the connector housing 11.

[0037] Furthermore, the connector housing 11 is provided with a limiting groove 111, and a wire 14 is fitted into the limiting groove 111. In addition, the connector housing 11 is provided with a second insertion hole 112, into which the fisheye end of the second terminal 12 is inserted, and the other end of the second terminal 12 is crimped onto the end of the wire 14, such as... Figure 4 and Figure 6As shown. In addition, the connector housing 11 is also provided with a third insertion hole 113, into which a third terminal 13 is inserted.

[0038] Furthermore, the wire 14, as a conventional and mature component, will not be described in detail here. Its general structure is as follows: the wire 14 is provided with a conductor, an insulating sleeve, a protective sleeve, and a shielding mesh sleeve from the inside out. The shielding mesh sleeve is used to isolate the interference signals generated when the wire harness body 2 is working. For the wire 14 inserted into the high-voltage connector 1, the shielding cover of the shielding kit 15 directly covers and is pressed outside the shielding mesh sleeve of the wire 14. That is, the shielding cover is in close contact with the outer shielding mesh sleeve of the wire 14. The cover presses the shielding cover tightly onto the wire 14 to ensure the reliability of the electrical connection. This allows the shielding mesh sleeve outside the wire 14 to conduct the interference signals to the ground through the shielding kit 15 and the grounding terminal 17 to eliminate them, effectively suppressing the electromagnetic interference (EMI) of the wire harness body 2 and improving the electromagnetic compatibility (EMC) of the whole vehicle. The part where the end of the corrugated tube contacts the connector housing 11 is covered with a protective sleeve 10, which serves as a transition and aesthetics.

[0039] like Figure 1-3 As shown, the wire harness body 2 is provided with a sheath 4 and multiple cable ties 3. The sheath 4 is made of plastic and is used to protect the bent parts of the wire 14 body. The cable ties 3 are used to fix the wire harness body. The first connector 5 is provided with a positioning clip 6, which is used to position the insertion position of the first connector 5.

[0040] In this utility model device, the assembly and matching relationships of the various components, the materials of each component and their molding processes are existing technologies or materials, and the relevant technical personnel can directly purchase or order them from the market according to the required product model and specifications.

[0041] All electrical components mentioned in the text are connected to external main controllers, 220V AC mains power or industrial power, or other battery power sources. The main controller can be a conventional known device such as a computer that plays a control role.

[0042] The above description is merely a preferred embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It is obvious to those skilled in the art that this utility model is not limited to the details of the above embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A high-voltage wiring harness assembly for automotive air conditioning, characterized in that, The device includes a wire harness body (2), a first connector (5), and a high-voltage connector (1). The wire harness body (2) includes a wire (14) and a corrugated tube sleeved on the outside of the wire (14). The first connector (5) includes a first housing and a first terminal. The wire (14) is embedded in the first housing and the first terminal crimps one end of the wire (14). The high-voltage connector (1) includes a second terminal (12) and a connector housing (11). The second terminal (12) is inserted into the connector housing (11) and fixedly connected to the other end of the wire (14). At the same time, the end of the wire (14) passes through the connector housing (11) and is sleeved with a shielding kit (15). The shielding kit (15) is limited by a grounding terminal (17). The grounding terminal (17) is fixed to the connector housing (11) by an end cap (16).

2. The automotive air conditioning high-voltage wiring harness assembly according to claim 1, characterized in that, The shielding kit (15) includes a shielding cover and a pressure cap, with the pressure cap fitted over the outside of the shielding cover.

3. The automotive air conditioning high-voltage wiring harness assembly according to claim 2, characterized in that, One end of the grounding terminal (17) is fixed inside the connector housing (11) and abuts against the pressure cover, while the other end of the grounding terminal (17) extends to the outside of the connector housing (11) and is grounded.

4. The automotive air conditioning high-voltage wiring harness assembly according to claim 3, characterized in that, The pressure cap is composed of two cylinders with different diameters, and the grounding terminal (17) is machined with an arc-shaped groove that engages with the pressure cap.

5. The high-voltage wiring harness assembly for automotive air conditioning according to claim 1, characterized in that, The connector housing (11) is provided with a positioning hole (110), and an internal threaded component is embedded in the positioning hole (110). The end cover (16) is screwed to connect the grounding terminal (17) and the internal threaded component.

6. A high-voltage wiring harness assembly for automotive air conditioning according to claim 5, characterized in that, The connector housing (11) is provided with a limiting groove (111), and a wire (14) is fitted in the limiting groove (111).

7. A high-voltage wiring harness assembly for automotive air conditioning according to claim 6, characterized in that, The connector housing (11) is provided with a second insertion hole (112), the fisheye end of the second terminal (12) is inserted into the second insertion hole (112), and the other end of the second terminal (12) is crimped onto the end of the wire (14).

8. A high-voltage wiring harness assembly for automotive air conditioning according to claim 7, characterized in that, The connector housing (11) is also provided with a third insertion hole (113), and a third terminal (13) is inserted into the third insertion hole (113).

9. A high-voltage wiring harness assembly for automotive air conditioning according to any one of claims 1-8, characterized in that, The wire (14) is provided with a conductor, an insulating sleeve, a protective sleeve and a shielding mesh sleeve from the inside to the outside. The part of the corrugated tube that contacts the connector housing (11) is covered with a protective sleeve (10).

10. A high-voltage wiring harness assembly for automotive air conditioning according to claim 9, characterized in that, The wire harness body (2) is provided with a sheath (4) and multiple cable ties (3), and the first connector (5) is provided with a positioning clip (6).

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