Wire harness connector

Abstract

The utility model relates to a wire harness connector, which comprises a connector main body, a sealing assembly and a lock catch assembly. The connector body is provided with a plurality of terminal grooves and a plurality of bayonets. The sealing assembly comprises a plurality of sealing pieces which are sequentially spliced into a whole. The sealing piece is an elastic rubber block. Each sealing piece comprises a sealing part, a positioning part and a supporting part. The lock catch assembly comprises a first lock catch piece and a second lock catch piece which are respectively clamped with the connector main body. And the first locking fastener and the second locking fastener compress each sealing element at the rear end of the connector main body. And the first locking fastener and the second locking fastener are respectively hooked with the bayonet. The rear end of the connector main body is provided with the spliced sealing assembly, the gap between the terminal groove and the wire is filled and sealed by using the sealing assembly, and then the sealing assembly is fixed through the lock catch assembly, so that the sealing protection and gap filling of the rear end of the terminal groove are realized, and the sealing performance is improved; and the risk that external dust or solution invades from the rear end of the connector is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wire harness technology, and in particular to a wire harness connector. Background Technology

[0002] A wire harness is a medium for transmitting electrical signals between two or more electronic devices. Depending on the signal transmission requirements, a wire harness can contain multiple wires, or multiple wire harnesses can form a tree-like assembly (e.g., an industrial control bus or an automotive bus). A wire harness generally includes connectors, metal terminals, and wires. The metal terminals connect to the wires to form a signal transmission channel, while the connector is used to mount the metal terminals and serves as the insertion point of the wire harness. Typically, connectors have multiple arrayed terminal slots; during assembly, the metal terminals are inserted into these slots from the rear of the connector for fixation.

[0003] The drawback of traditional wire harness connectors is that when the metal terminals are inserted into the connector, the tail end of the connector is not sealed against the rear end of the terminal slot. Therefore, there is a significant gap between the rear end of the connector's terminal slot and the wire, resulting in poor sealing. When the wire harness is used in a relatively harsh environment, external dust or solutions can easily invade from the rear end of the connector. Utility Model Content

[0004] Based on this, the present invention provides a wire harness connector, which has a spliced ​​sealing component at the rear end of the connector body. The sealing component fills and seals the gap between the terminal slot and the wire, and then the sealing component is fixed by a locking component, thereby achieving sealing protection of the rear end of the terminal slot, filling the gap, improving the sealing performance, and reducing the risk of external dust or solution intrusion from the rear end of the connector.

[0005] A wire harness connector, comprising:

[0006] Connector body; the connector body has multiple terminal slots arranged along the axial direction and distributed in an array; the rear end of the connector body has multiple bayonets;

[0007] A sealing assembly detachably mounted on the connector body; the sealing assembly includes: multiple seals sequentially assembled into one piece; each seal is an elastic rubber block; each seal includes: a sealing part, a positioning part, and a support part sequentially connected axially; the sealing part is inserted into the rear end of the terminal slot to fill the gap between the wire and the rear end of the terminal slot; the positioning part abuts against the rear end of the connector body; the support part has an arc-shaped structure and is used to attach the outer periphery of the wire; when the seals are combined, a groove is formed between each pair for the wire to pass through; and

[0008] A locking assembly that can be detachably installed on the connector body; the locking assembly includes: a first locking member and a second locking member that respectively snap onto the connector body; the first locking member and the second locking member are symmetrically distributed at the rear end of the connector body and press each seal against the rear end of the connector body; the first locking member and the second locking member respectively hook onto the bayonet.

[0009] During assembly, the metal terminals of the aforementioned wire harness connector are inserted into the terminal slots of the connector body from back to front. Next, the various sealing elements of the sealing assembly are sequentially installed onto the rear end of the connector body, with the sealing portion of the sealing element inserted into the terminal slot and the support portion abutting the outer periphery of the wire. The sealing elements fill the gap between the wire and the terminal slot, forming a protective covering and support for the wire. Then, the first and second locking elements of the locking assembly are placed on the sides of the sealing assembly, and then pushed axially forward to align with the bayonet on the connector body, pressing the sealing assembly firmly against the rear end of the connector body. This design, with its spliced ​​sealing assembly at the rear end of the connector body, fills and seals the gap between the terminal slot and the wire, and is then secured by the locking assembly. This achieves sealing protection of the rear end of the terminal slot, fills the gap, improves sealing performance, and reduces the risk of external dust or solutions intruding from the rear end of the connector.

[0010] In one embodiment, a hook is also provided on one side of the connector body; the hook extends axially from the rear end to the front end of the connector body. When the connector body is mated with the interface of an electronic device, the hook engages with the interface on the electronic device, thereby improving the connection stability between the connector body and the interface of the electronic device.

[0011] In one embodiment, each seal is a one-piece molded elastic silicone block. The one-piece molded elastic silicone block has good insulation properties, high plasticity, and a long service life.

[0012] In one embodiment, the support portion is a semi-circular arc-shaped piece. When the two seals are joined together, the semi-circular support portion can form a cylindrical protective sleeve that wraps around the outer periphery of the wire.

[0013] In one embodiment, the first locking member includes: a first positioning frame located on the outer side of the seal and abutting the rear end of the connector body, and a first spring piece connected to the first positioning frame; the first spring piece extends axially from rear to front and hooks into a bayonet; the second locking member includes: a second positioning frame located on the outer side of the seal and abutting the rear end of the connector body, and a second spring piece connected to the second positioning frame; the second spring piece extends axially from rear to front and hooks into a bayonet. The positioning frame abuts against the side of the seal, and the spring piece hooks into the bayonet of the connector body to provide an axially forward compressive force, thereby securing the seal to the rear end of the connector body.

[0014] In one embodiment, both the front ends of the first and second springs are rounded. The rounded corners are designed to improve the smoothness of the spring insertion into the bayonet.

[0015] In one embodiment, there are two first spring clips symmetrically distributed on both sides of the first positioning frame; and two second spring clips symmetrically distributed on both sides of the second positioning frame. The symmetrical arrangement of the spring clips allows for balanced force distribution on the positioning frame, improving installation stability. Attached Figure Description

[0016] Figure 1 This is a perspective view of a wire harness connector according to an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A perspective view of the wire harness connector shown from another angle;

[0018] Figure 3 for Figure 1 An axial sectional view of the wire harness connector shown.

[0019] Figure 4 for Figure 1 An exploded view of the wire harness connector shown;

[0020] Figure 5 for Figure 4 A perspective view of the connector body in the wire harness connector shown;

[0021] Figure 6 for Figure 5 A perspective view of the connector body from another angle;

[0022] Figure 7 for Figure 4 A perspective view of the sealing assembly in the wire harness connector shown;

[0023] Figure 8 for Figure 7 A perspective view of the sealing assembly shown from another angle;

[0024] Figure 9 for Figure 8 A perspective view of the first seal in the sealing assembly shown;

[0025] Figure 10 for Figure 8 A perspective view of the second seal in the sealing assembly shown;

[0026] Figure 11 for Figure 8 A perspective view of the third seal in the sealing assembly shown;

[0027] Figure 12 for Figure 8 The diagram shows a combined view of the sealing assembly and the connector body.

[0028] Figure 13 for Figure 4 A perspective view of the locking element in the locking assembly of the wire harness connector shown;

[0029] Figure 14 for Figure 4 A perspective view of the second locking element in the locking assembly of the wire harness connector shown;

[0030] Figure 15 for Figure 1 The diagram shows the assembly of the wire harness connector. Figure 1 ;

[0031] Figure 16 for Figure 1 The diagram shows the assembly of the wire harness connector. Figure 2 ;

[0032] Figure 17 for Figure 1 The diagram shows the assembly of the wire harness connector. Figure 3 ;

[0033] Figure 18 for Figure 1 The diagram shows the assembly of the wire harness connector. Figure 4 .

[0034] The meanings of the labels in the attached diagram are as follows:

[0035] 100-Wire Harness Connector;

[0036] 10-Connector body, 11-Terminal slot, 12-Bayonet, 13-Hook;

[0037] 20-Sealing assembly, 21-Sealing element, 21A-First sealing element, 21B-Second sealing element, 21C-Third sealing element, 211-Sealing part, 212-Positioning part, 213-Supporting part;

[0038] 30-Lock assembly, 31-First lock element, 311-First positioning frame, 312-First spring, 32-Second lock element, 321-Second positioning frame, 322-Second spring;

[0039] 200 - Wire. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] like Figures 1 to 18 As shown, it is a wire harness connector 100 according to one embodiment of the present invention.

[0047] like Figure 1 and Figure 2 As shown, the wire harness connector 100 includes: a connector body 10, a sealing assembly 20 detachably mounted on the connector body 10, and a locking assembly 30 detachably mounted on the connector body 10. The connector body 10 is used to house metal terminals and serves as the insertion end of the wire harness. The sealing assembly 20 is used to seal and protect the rear end of the connector body 10. The locking assembly 30 is used to securely lock the sealing assembly 20 onto the connector body 10.

[0048] The following text, combined with Figures 1 to 18 The wire harness connector 100 described above will be further explained.

[0049] like Figure 5 and Figure 6 As shown, the connector body 10 has a plurality of terminal slots 11 arranged axially and distributed in an array. The rear end of the connector body 10 has a plurality of bayonets 12. For example, in this embodiment, the connector body 10 has six terminal slots 11 arranged in a 3*2 configuration. In use, metal terminals can be inserted from the rear end of the terminal slots 11, then extended axially to the front end of the connector body 10 and snapped into place at the front end of the metal terminals.

[0050] To improve the reliability of the interface between the connector body 10 and electronic devices during use, such as Figure 5As shown, in this embodiment, a hook 13 is also provided on one side of the connector body 10. The hook 13 extends axially from the rear end to the front end of the connector body 10. When the connector body 10 is connected to the interface of an electronic device, the hook 13 engages with the interface on the electronic device, thereby improving the connection stability between the connector body 10 and the interface of the electronic device.

[0051] like Figure 7 and Figure 8 As shown, the sealing assembly 20 includes a plurality of sealing elements 21 sequentially spliced ​​together. Each sealing element 21 is an elastic rubber block. For example, in this embodiment, each sealing element 21 is a one-piece molded elastic silicone block. One-piece molded elastic silicone blocks have good insulation properties, high plasticity, and long service life.

[0052] like Figure 3 As shown, each seal 21 includes: a sealing portion 211, a positioning portion 212, and a support portion 213 connected sequentially along the axial direction. (Combined) Figure 3 and Figure 17 As shown, the sealing part 211 is inserted into the rear end of the terminal groove 11 to fill the gap between the wire 200 and the rear end of the terminal groove 11. The positioning part 212 abuts against the rear end of the connector body 10. The support part 213 has an arc-shaped structure and is used to attach the outer periphery of the wire 200. When the sealing parts 21 are assembled, a groove is formed between each pair for the wire 200 to pass through.

[0053] Preferably, in this embodiment, the support portion is a semi-circular arc-shaped piece. When the two seals 21 are joined together, the semi-circular support portion can form a cylindrical protective sleeve that wraps around the outer periphery of the wire 200.

[0054] See Figure 7 and Figure 8 Taking the aforementioned 3*2 terminal slot 11 as an example, in this embodiment, the sealing assembly 20 includes three sealing elements 21, which, for ease of explanation, are respectively referred to as the first sealing element 21A, the second sealing element 21B, and the third sealing element 21C. Figures 9 to 10 As shown, the first seal 21A, the second seal 21B, and the third seal 21C are each provided with a sealing part 211, a positioning part 212, and a support part 213.

[0055] Combination Figure 2 and Figure 4 As shown, the locking assembly 30 includes a first locking member 31 and a second locking member 32 that respectively engage with the connector body 10. The first locking member 31 and the second locking member 32 are symmetrically distributed at the rear end of the connector body 10 and press each sealing member 21 against the rear end of the connector body 10. The first locking member 31 and the second locking member 32 respectively hook onto the bayonet 12.

[0056] like Figure 13As shown, in this embodiment, the first locking member 31 includes: a first positioning frame 311 located on the outer side of the seal 21 and abutting the rear end of the connector body 10, and a first spring piece 312 connecting the first positioning frame 311. The first spring piece 312 extends axially from back to front and hooks onto the bayonet 12. Figure 14 As shown, the second locking member 32 includes: a second positioning frame 321 located on the outer side of the seal 21 and abutting the rear end of the connector body 10, and a second spring piece 322 connected to the second positioning frame 321. The second spring piece 322 extends axially from rear to front and hooks onto the bayonet 12. The positioning frame abuts against the side of the seal 21, and the spring piece hooks onto the bayonet 12 of the connector body 10 to provide an axially forward pressing force, thereby fixing the seal 21 to the rear end of the connector body 10.

[0057] Furthermore, such as Figure 13 and Figure 14 As shown, in this embodiment, the front ends of the first spring 312 and the second spring 322 are both provided with rounded corners. The rounded corner design is used to improve the smoothness of the spring inserting into the bayonet 12.

[0058] To improve assembly stability, combined with Figure 2 , Figure 13 and Figure 14 As shown, in this embodiment, there are two first spring tabs 312, symmetrically distributed on both sides of the first positioning frame 311. There are also two second spring tabs 322, symmetrically distributed on both sides of the second positioning frame 321. The symmetrical arrangement of the spring tabs allows the positioning frame to bear force evenly, improving installation stability. For example, after the sealing assembly 20 and the connector body 10 are installed, the first positioning frame 311 of the first locking member 31 abuts against both sides of the sealing assembly 20. Then, the two first spring tabs 312 are simultaneously pressed down, and the sealing assembly 20 is pushed forward axially until the first positioning frame 311 abuts against the rear end of the connector body 10. At this point, both first spring tabs 312 are inserted into the bayonet 12 of the connector body 10. Then, the downward pressure on the two first spring tabs 312 is released, and the first spring tabs 312 spring back and their ends engage with the bayonet 12. The installation method of the second locking member 32 is the same as that of the first locking member 31, and will not be described again here.

[0059] Brief description of working principle:

[0060] like Figure 15 As shown, during assembly, the metal terminals are pre-crimped to the wires 200, and then the metal terminals are inserted into the terminal slots 11 of the connector body 10 from back to front.

[0061] like Figures 16 to 17As shown, next, each seal 21 of the sealing assembly 20 is sequentially installed onto the rear end of the connector body 10, such that the sealing portion 211 of the seal 21 is inserted into the terminal groove 11 (see [reference]). Figure 3 The support portion 213 is attached to the outer periphery of the wire 200, and the seal 21 fills the gap between the wire 200 and the terminal groove 11, thus forming a wrapping and support for the wire 200.

[0062] like Figure 18 As shown, the first locking member 31 and the second locking member 32 of the locking assembly 30 are then placed on the side of the sealing assembly 20, and the first locking member 31 and the second locking member 32 are pushed forward along the axial direction to mate with the bayonet 12 on the connector body 10, so that the sealing assembly 20 is pressed against the rear end of the connector body 10.

[0063] The aforementioned wire harness connector 100 has a spliced ​​sealing component 20 at the rear end of the connector body 10. The sealing component 20 fills and seals the gap between the terminal slot 11 and the wire 200. The sealing component 20 is then fixed by the locking component 30, thereby achieving sealing protection for the rear end of the terminal slot 11, filling the gap, improving the sealing performance, and reducing the risk of external dust or solution intrusion from the rear end of the connector.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A wiring harness connector characterized by, include: Connector body; The connector body is provided with multiple terminal slots arranged along the axial direction and distributed in an array; The connector body has multiple bayonet slots at its rear end; A sealing assembly detachably mounted on the connector body; the sealing assembly includes: a plurality of sealing elements sequentially spliced ​​into one piece; each sealing element is an elastic rubber block; each sealing element includes: a sealing part, a positioning part, and a support part sequentially connected along the axial direction; the sealing part is inserted into the rear end of the terminal groove to fill the gap between the wire and the rear end of the terminal groove; the positioning part abuts against the rear end of the connector body; the support part has an arc-shaped structure and is used to attach the outer periphery of the wire; when the sealing elements are combined, a groove is formed between each pair for the wire to pass through; and A locking assembly detachably mounted on the connector body; the locking assembly includes: a first locking member and a second locking member respectively engaging with the connector body; the first locking member and the second locking member are symmetrically distributed at the rear end of the connector body and press each of the sealing members against the rear end of the connector body; the first locking member and the second locking member respectively hook onto the bayonet.

2. The wiring harness connector of claim 1, wherein, The connector body is also provided with a latch on one side; the latch extends axially from the rear end to the front end of the connector body.

3. The wire harness connector of claim 1, wherein, Each of the aforementioned sealing components is a one-piece molded elastic silicone block.

4. The wire harness connector of claim 1, wherein, The support portion is a semi-circular arc-shaped piece.

5. The wire harness connector of claim 1, wherein, The first locking member includes: a first positioning frame located on the outer side of the seal and abutting the rear end of the connector body, and a first spring piece connected to the first positioning frame; the first spring piece extends axially from rear to front and hooks the bayonet; the second locking member includes: a second positioning frame located on the outer side of the seal and abutting the rear end of the connector body, and a second spring piece connected to the second positioning frame; the second spring piece extends axially from rear to front and hooks the bayonet.

6. The wiring harness connector of claim 5, wherein, Both the front ends of the first and second springs are rounded.

7. The wiring harness connector of claim 5, wherein, The number of the first spring pieces is two and they are symmetrically distributed on both sides of the first positioning frame; the number of the second spring pieces is two and they are symmetrically distributed on both sides of the second positioning frame.

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