Connector and cable harness

Abstract

The utility model discloses a connector and a cable harness, comprising a male end and a female end, the right end of the male end is provided with a plugging end, the left end of the female end is provided with a jack, and the plugging end is in plugging cooperation with the jack. Female end jacks in one-to-one correspondence with the male end contact pins are arranged in the jack, and each male end contact pin is inserted into one female end jack; the outer surface of the left end of the male end pin is further coated with a rubber layer, the left end of the rubber layer is connected with the plugging end, a distance is reserved between the right end of the rubber layer and the right end face of the male end pin, the left end of the female end jack is provided with a coaxially-arranged receding hole, and the right end of the female end jack is provided with a groove. The male end pin passes through the abdicating hole and is inserted in the female end jack, the rubber layer is inserted in the abdicating hole, and the rubber layer is in close fit with the abdicating hole. According to the utility model, the use stability and safety of the connector are improved.

Description

Technical Field

[0001] The utility model relates to a connector and a cable harness, which are mainly used for connecting electrical equipment. Background Art

[0002] Connectors are mainly used for power transmission and signal transmission between devices and power supplies, and between devices. For example, when a motor is connected to a control box or a power supply, a cable is used to connect the power supply and data transmission. In conventional connection methods, when connectors are connected, quick plug-in mating is generally used. The plug-in connection will have an elastic sealing ring, and the connection between the two will be sealed by extrusion force. However, this structure has the following shortcomings:

[0003] 1. The sealing effect of this elastic sealing ring alone is not very strong, which makes it easy for water vapor to enter in a humid environment, posing a major safety hazard;

[0004] 2. If water vapor enters directly from the pins and sockets of the connector, there is also a major safety hazard. Summary of the invention

[0005] The utility model aims to provide a connector and a cable harness, which can improve the sealing effect of the connection and ensure the safety of use by using the structure.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a connector, including a male end and a female end, the right end of the male end is provided with a plug end, the left end of the female end is provided with a jack, the plug end is plugged and matched with the jack, at least one male end pin is provided in the plug end, and a female end jack corresponding to the male end pin is provided in the jack, and each male end pin is plugged into a female end jack;

[0007] The outer surface of the left end of the male pin is also covered with a rubber layer, the left end of the rubber layer is connected to the plug-in end, and there is a distance between the right end of the rubber layer and the right end surface of the male pin. The left end of the female socket is provided with a coaxially arranged clearance hole, the male pin passes through the clearance hole and is inserted into the female socket, the rubber layer is inserted into the clearance hole, and the rubber layer is tightly fitted with the clearance hole.

[0008] In the above technical solution, the clearance hole is a tapered hole that is larger on the left and smaller on the right, and the right end surface of the clearance hole is flush with the inner surface of the left end of the female end jack;

[0009] The right end of the rubber layer is provided with a conical guide surface which is larger on the left and smaller on the right. The right end surface of the conical guide surface is connected to the outer surface of the male end pin. The conical guide surface is inserted into the clearance hole, and the outer surface of the conical guide surface is tightly fitted with the inner wall of the clearance hole.

[0010] In the above technical solution, the length of the tapered guide surface is greater than the length of the clearance hole.

[0011] In the above technical solution, a coaxially arranged mounting hole is provided in the middle of the plug end, the right end of the mounting hole is connected to the right end face of the plug end, the male end pin is installed in the mounting hole, the left end of the male end pin is connected to the male end, and the right end of the male end pin is arranged close to the right end of the mounting hole; the left end of the rubber layer is sealed and connected to the left side face of the mounting hole;

[0012] A connection end matching with the mounting hole is arranged in the jack, the female end jack and the clearance hole are arranged in the connection end, and the left end surface of the clearance hole is connected with the left side surface of the connection end;

[0013] The plug-in end is inserted between the plug hole and the connecting end, and the connecting end is inserted in the mounting hole.

[0014] In the above technical solution, a first conical guide surface which is larger on the left and smaller on the right is provided on the inner surface of the left end of the jack, and the left side surface of the first conical guide surface is connected to the left outer surface of the female end;

[0015] A flexible conical plug is provided on the outer surface of the connecting end, and the flexible conical plug is arranged at the connection between the plug end and the male end. The outer surface of the flexible conical plug abuts against the first conical guide surface, and the flexible conical plug is tightly matched with the first conical guide surface.

[0016] In the above technical solution, an external thread is provided on the outer surface of the male end on the left side of the plug-in end, and a screw sleeve is installed on the female end. The screw sleeve is threadedly connected to the external thread of the male end, and the screw sleeve and the external thread lock the male end and the female end.

[0017] The utility model also provides a cable harness, comprising a harness body and the above connector, wherein one end of the harness body is connected to the male end, and the other end of the harness body is connected to the female end.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] 1. In the utility model, each pin is coated with a rubber layer, and the rubber layer is inserted into the clearance hole connected to the female end socket, so as to seal the connection between the pin and the female end socket, which can effectively prevent water vapor from directly entering the pin and the female end socket, effectively ensure the sealing effect, and ensure the safety and stability of use;

[0020] 2. The right end of the rubber layer in the utility model is a tapered guide surface, and the give way hole is a tapered hole, so that when the two are plugged in, the sealing effect of the plugging can be guaranteed, and the sealing and safety of the connector during use can be guaranteed;

[0021] 3. In the utility model, a flexible conical plug is arranged between the male end and the female end, so that the connection between the two can be sealed once, and then a second sealing is performed through the rubber layer, so that the double sealing effect is better, the sealing performance is stronger, and the safety of use is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the connector in the plug-in mating state in the first embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the male end in the first embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the female end in the first embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the cable harness in the first embodiment of the utility model.

[0026] Among them: 1. male end; 2. female end; 3. plug-in end; 4. socket; 5. male end pin; 6. female end socket; 7. rubber layer; 8. clearance hole; 9. conical guide surface; 10. screw sleeve; 11. annular protrusion; 12. wiring harness body; 13. mounting hole; 14. connecting end; 15. first conical guide surface; 16. flexible conical plug. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] Example 1: See Figures 1 to 4 As shown, a connector comprises a male end 1 and a female end 2, wherein the right end of the male end 1 is provided with a plug end 3, and the left end of the female end 2 is provided with a socket 4, wherein the plug end 3 is plugged and matched with the socket 4, wherein at least one male end pin 5 is provided in the plug end 3, and wherein the socket 4 is provided with a female end socket 6 corresponding to the male end pin 5 one by one, and each male end pin 5 is plugged into a female end socket 6;

[0029] The outer surface of the left end of each male end pin 5 is also covered with a rubber layer 7, the left end of the rubber layer 7 is connected to the plug-in end 3, and there is a distance between the right end of the rubber layer 7 and the right end surface of the male end pin 5. The left end of the female end socket 6 is provided with a coaxially arranged clearance hole 8, and the male end pin 5 passes through the clearance hole 8 and is inserted into the female end socket 6, and the rubber layer 7 is inserted into the clearance hole 8, and the rubber layer 7 is tightly fitted with the clearance hole 8.

[0030] In this embodiment, when the connector is connected, the male end and the female end are plugged together. During the plugging process, the plugging end of the male end is inserted into the jack of the female end. During this process, the right end of the male end pin will first pass through the clearance hole and then be inserted into the female end jack, so as to realize the electrical connection between the male end pin and the female end jack. At the same time, during the plugging process of the male end and the female end, the right end of the rubber layer will be inserted into the clearance hole. After the plugging of the male end and the female end is completed, the right end of the rubber layer and the clearance hole are tightly matched, so that the rubber layer and the clearance hole seal the left end of the connection between the male end pin and the female end jack, preventing external water vapor, dust, etc. from entering the interior and affecting the electrical connection performance of the two, and ensuring the stability and safety during use. At the same time, because the rubber layer will be coated on the outer surface of the left end of the male end pin, its left end is connected to the plugging end, so that after the plugging of the male end and the female end is completed, the male end pin and the female end jack will be completely sealed, without any leakage, which can effectively ensure the sealing effect, ensure the safety of use, and extend the service life. Among them, a female terminal is provided in the female end, and the female end jack is arranged in the female terminal, so as to realize the electrical connection between the male end pin and the female terminal.

[0031] See also Figure 1 , 3 As shown, the clearance hole 8 is a tapered hole that is larger on the left and smaller on the right, and the right end surface of the clearance hole 8 is flush with the inner surface of the left end of the female end jack 6;

[0032] The right end of the rubber layer 7 is provided with a conical guide surface 9 which is larger on the left and smaller on the right. The right end surface of the conical guide surface 9 is connected to the outer surface of the male end pin 5. The conical guide surface 9 is inserted into the clearance hole 8, and the outer surface of the conical guide surface 9 is tightly fitted with the inner wall of the clearance hole 8.

[0033] In this embodiment, the left outer diameter of the clearance hole is larger than the right outer diameter, and the left outer diameter of the tapered guide surface is larger than the right outer diameter, so that the outer diameter of the rubber layer will be larger than the diameter of the pin and the female end jack. When the pin is inserted into the female end jack, the tapered guide surface is inserted into the clearance hole. When the cone and the clearance hole are completely fitted, the male end and the female end will be close to each other for a short distance. In this process, the tapered guide surface will be squeezed through the clearance hole, so that the tapered guide surface made of the rubber layer is squeezed and deformed, so that the tapered guide surface and the clearance hole are tightly matched, and the gap between the tapered guide surface and the clearance hole is completely blocked, so as to achieve complete sealing, prevent external water vapor, dust, etc. from entering inside, ensure the sealing effect, and improve the safety and stability of the connector.

[0034] The length of the conical guide surface is greater than the length of the clearance hole, so that when the two are pressed against each other, the conical guide surface is always tightly attached to the inner surface of the clearance hole, thereby ensuring the sealing effect.

[0035] Furthermore, in order to ensure the tightness of the connection between the male end and the female end and to ensure that the male end and the female end will not loosen after being connected, an external thread is provided on the outer surface of the male end on the left side of the plug-in end, and a screw sleeve 10 is installed on the female end. The screw sleeve 10 is threadedly connected to the external thread of the male end 1, and the screw sleeve 10 and the external thread lock the male end 1 and the female end 2.

[0036] Among them, an annular convex portion 11 is provided on the inner surface of the right end of the screw sleeve 10, and the diameter of the annular convex portion 11 is smaller than the outer diameter of the right side of the female end. After the male end and the female end are plugged in, the connection between the two may not be very tight, and it is easy to loosen, or the connection tightness between the rubber layer and the clearance hole is insufficient. Therefore, by setting the screw sleeve and the external thread, the screw sleeve is moved to the left, and the inner surface of the screw sleeve is provided with an internal thread, and then the screw sleeve and the external thread of the male end are screwed together. After the annular convex portion contacts the right side surface of the female end, the screw sleeve continues to be screwed with the external thread, so that the female end and the male end can continue to approach each other, until the two cannot approach each other at all, which will make the male end and the female end completely plugged in, so that the tapered guide surface of the rubber layer and the clearance hole fit tightly together, and there is no gap between the two, thereby ensuring the sealing effect.

[0037] See also Figure 4As shown, the utility model also provides a cable harness, including a harness body 12, and also including the above-mentioned connector, one end of the harness body 12 is connected to the male end 1, and the other end of the harness body 12 is connected to the female end 2. Among them, the annular protrusion is directly sleeved on the harness body, and its inner diameter will be smaller than the outer diameters of the male end and the female end, so that when the male end and the female end are not yet plugged in, the screw sleeve will be on the harness body and will not fall off or be lost. When the cable harness is in use, the cable harness can be connected to the cable harness, so that the male end of the cable harness will be connected to the female end of another cable harness, or the male end or female end of the cable harness will be plugged in with the female end or male end of the electrical equipment or power supply equipment.

[0038] See also Figures 1 to 3 As shown, a coaxially arranged mounting hole 13 is provided in the middle of the plug-in end 3, the right end of the mounting hole 13 is communicated with the right end face of the plug-in end 3, the male end pin 5 is installed in the mounting hole 13, the left end of the male end pin 5 is connected to the male end 1, and the right end of the male end pin 5 is arranged close to the right end of the mounting hole 13, so that the male end pin is in the mounting hole and will not be exposed during each plug-in, thereby preventing the male end pin from being bent or broken by external force; the left end of the rubber layer 7 is sealed and connected to the left side face of the mounting hole 13.

[0039] The socket 4 is provided with a connection end 14 that matches the mounting hole 13, the female socket 6 and the clearance hole 8 are provided in the connection end 14, and the left end surface of the clearance hole 8 is connected to the left side surface of the connection end;

[0040] The plug-in end 3 is inserted between the plug hole 4 and the connecting end 14 , and the connecting end 14 is inserted into the mounting hole 13 .

[0041] The male end pin is set in the mounting hole, and the connecting end is inserted into the mounting hole, so that after the male end and the female end are plugged in, there will be no gap between the two plugging places, which can ensure the strength of the plugging. At the same time, anti-fool mechanisms are respectively set on the outer surface of the connecting end and the inner wall of the mounting hole, for example, a groove is set on the outer surface of the connecting end, and a convex body is set on the inner wall of the mounting hole, and the convex body is inserted into the groove to play an anti-fool role.

[0042] See also Figures 1 to 3 As shown, a first conical guide surface 15 with a larger left side and a smaller right side is provided on the inner surface of the left end of the jack 4, and the left side surface of the first conical guide surface 15 is connected to the left outer surface of the female end;

[0043] A flexible conical plug 16 is provided on the outer surface of the connecting end 14, and the flexible conical plug 16 is arranged at the connection between the plug end 3 and the male end 1. The outer surface of the flexible conical plug 16 abuts against the first conical guide surface 15, and the flexible conical plug 16 is tightly fitted with the first conical guide surface 15.

[0044] In this embodiment, by providing a flexible conical plug and a first conical guide surface, after the plug-in end is inserted into the jack, the flexible conical plug can be inserted into the first conical guide surface to block the connection between the two, thereby further increasing the sealing effect. The flexible conical plug and the first conical guide surface perform a first seal, and the rubber layer and the relief hole perform a second seal. This double seal has a better effect and ensures the stability and safety of the connector and cable harness in use.

[0045] The length of the flexible conical plug is greater than the length of the first conical guide surface, so as to ensure that after the male end and the female end are fully plugged in, the flexible conical plug can fit tightly against the first conical guide surface.

Claims

1. A connector, comprising a male end and a female end, wherein the right end of the male end is provided with a plug end, the left end of the female end is provided with a jack, the plug end is plugged into and matched with the jack, characterized in that: At least one male pin is provided in the plug-in end, and a female socket corresponding to the male pin is provided in the socket, and each male pin is inserted in a female socket; The outer surface of the left end of the male pin is also covered with a rubber layer, the left end of the rubber layer is connected to the plug-in end, and there is a distance between the right end of the rubber layer and the right end surface of the male pin. The left end of the female socket is provided with a coaxially arranged clearance hole, the male pin passes through the clearance hole and is inserted into the female socket, the rubber layer is inserted into the clearance hole, and the rubber layer is tightly fitted with the clearance hole.

2. The connector according to claim 1, characterized in that: The clearance hole is a tapered hole that is larger on the left and smaller on the right, and the right end surface of the clearance hole is flush with the inner surface of the left end of the female end jack; The right end of the rubber layer is provided with a conical guide surface which is larger on the left and smaller on the right. The right end surface of the conical guide surface is connected to the outer surface of the male end pin. The conical guide surface is inserted into the clearance hole, and the outer surface of the conical guide surface is tightly fitted with the inner wall of the clearance hole.

3. The connector according to claim 2, characterized in that: The length of the tapered guide surface is greater than the length of the clearance hole.

4. The connector according to claim 1, characterized in that: A coaxially arranged mounting hole is provided in the middle of the plug end, the right end of the mounting hole is connected to the right end face of the plug end, the male end pin is installed in the mounting hole, the left end of the male end pin is connected to the male end, and the right end of the male end pin is arranged close to the right end of the mounting hole; the left end of the rubber layer is sealed and connected to the left side face of the mounting hole; A connection end matching with the mounting hole is arranged in the jack, the female end jack and the clearance hole are arranged in the connection end, and the left end surface of the clearance hole is connected with the left side surface of the connection end; The plug-in end is inserted between the plug hole and the connecting end, and the connecting end is inserted in the mounting hole.

5. The connector according to claim 4, characterized in that: A first conical guide surface is provided on the inner surface of the left end of the jack, which is larger on the left and smaller on the right, and the left side surface of the first conical guide surface is connected to the left outer surface of the female end; A flexible conical plug is provided on the outer surface of the connecting end, and the flexible conical plug is arranged at the connection between the plug end and the male end. The outer surface of the flexible conical plug abuts against the first conical guide surface, and the flexible conical plug is tightly matched with the first conical guide surface.

6. The connector according to claim 1, characterized in that: An external thread is arranged on the outer surface of the male end on the left side of the plug-in end, and a screw sleeve is installed on the female end. The screw sleeve is threadedly connected with the external thread of the male end, and the screw sleeve and the external thread lock the male end and the female end.

7. A cable harness, characterized in that: It comprises a wiring harness body and also comprises a connector as described in any one of claims 1 to 6, wherein one end of the wiring harness body is connected to the male end, and the other end of the wiring harness body is connected to the female end.

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