Waterproof plug-in terminal and pin

Abstract

The utility model relates to terminal connection application technology, in particular to a waterproof plug-in terminal and pin, which comprises a terminal body and is characterized in that the terminal body comprises an upper cover, a silica gel waterproof pad and a terminal base, a female plug terminal and a male pin are arranged in the terminal base, the female plug terminal is provided with a hanging lug and a positioning fixing strip, and the male pin is provided with a positioning fixing strip. And the positioning fixing strip is used for fixing the female plug terminal in the mounting hole of the terminal base so as to prevent sliding between the female plug terminal and the terminal base. The waterproof performance of the whole device is improved through the silica gel waterproof pad and the hanger and the positioning fixing strip on the female plug terminal, and the connection stability between the female plug terminal and the terminal base is enhanced at the same time.

Description

Technical Field

[0001] The utility model relates to a terminal connection application technology, in particular to a waterproof plug-in terminal and a plug pin. Background Art

[0002] In new energy vehicles, the design and use of various electrical devices are trending towards lightweight and integrated design. Various electrical cables are required for connection within the vehicle, and various plug-in terminals are used throughout the vehicle to connect the cables and transmit electrical and other sensor signals. Vehicles are generally in an irregular motion environment, placing high demands on the waterproofing capabilities of the plug-in terminals and the stability and anti-detachment capabilities of the pins. However, under current conditions, plugs with waterproof and anti-detachment properties are generally expensive or have complex structures, resulting in high long-term cost. Utility Model Content

[0003] To address the problems mentioned in the above background technology, a waterproof butt-to-butt terminal and plug are proposed. The technical solution of the utility model is as follows: a waterproof butt-to-butt terminal and plug, comprising a terminal body, characterized in that: the terminal body includes an upper cover, a silicone waterproof pad, and a terminal base; a female plug and a male plug are disposed within the terminal base; the female plug is provided with a hanging ear and a positioning fixing strip; the positioning fixing strip is used to fix the female plug in the mounting hole of the terminal base to prevent the female plug from sliding between the terminal base and the terminal base.

[0004] Preferably, a crown spring is further provided inside the hanging ear, the crown spring is clamped inside the hanging ear, one side of the male pin is sleeved in the crown spring, and both ends of the male pin are cylindrical.

[0005] Preferably, the silicone waterproof pad is composed of a first silicone waterproof layer and a second silicone waterproof layer, the first silicone waterproof layer and the second silicone waterproof layer are integrally formed, and a buffer ring is provided inside the first silicone waterproof layer and the second silicone waterproof layer, and the diameter inside the buffer ring gradually decreases from the outside to the inside.

[0006] Preferably, the four ends of the silicone waterproof pad adopt rounded transition, and the first silicone waterproof layer and the second silicone waterproof layer are arranged in an axisymmetric manner.

[0007] Preferably, fixed slots are provided on both sides of the upper cover, the bottom of the fixed slots is hollow, a circular hole is also provided in the middle of the upper cover, fixed ladder columns are provided on both sides of the terminal base, and the upper cover and the terminal base are fixed by the fixed ladder columns and the fixed slots.

[0008] Preferably, a watertight compartment is provided on the terminal base, and the silicone watertight pad is fixedly installed in the watertight compartment. Since the silicone watertight pad itself has a certain elasticity, the silicone watertight pad can completely abut against the inner plane of the watertight compartment.

[0009] Preferably, the crown spring is cylindrical as a whole, and a concave groove is provided in the middle of the crown spring. Since the crown spring is made of elastic material as a whole, the concave groove is used to assist in fixing and limiting the male pin and the crown spring during the socketing process.

[0010] Preferably, a raised stopper is further provided inside the terminal base. When the female terminal and the male pin are installed in combination in the mounting hole inside the terminal base, the hanging ear on the female terminal can be retracted vertically downward and cannot be retracted when moved in the opposite direction, thereby preventing the female terminal from being displaced due to external plugging and unplugging.

[0011] Preferably, a wire pressing angle is further provided on one side of the female plug terminal, and the wire pressing angle has a certain elasticity. After the cable is placed in the female plug terminal, the two sides of the wire pressing angle can be gradually wrapped inward to tighten the cable, and at the same time, the connection between the female plug terminal and the terminal base is facilitated.

[0012] Preferably, the female plug terminal is an integrally formed structure, which is convenient for large-scale production and has a stronger overall strength than that of a separate splicing structure.

[0013] Compared with the prior art, the present invention provides a waterproof plug-in terminal and plug-in pin, which has at least one of the following beneficial effects:

[0014] 1. By installing a silicone waterproof pad on the upper cover and the terminal base, the silicone waterproof pad adopts a symmetrical design and has two layers of silicone waterproof layer built in, which improves the waterproof ability of the entire terminal. The use of two layers of silicone waterproof layer ensures the waterproof life of the entire terminal.

[0015] 2. By providing hanging ears and positioning fixing strips on the female plug terminal, the female plug terminal can be installed more stably on the terminal base. In actual use, reciprocating plugging and unplugging will not produce relative movement, thereby enhancing the connection stability between the female plug terminal and the male pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is an overall schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a display diagram of the upper cover and the silicone waterproof pad in an embodiment of the present invention.

[0019] Figure 3 for Figure 2 A-axis partial enlarged view.

[0020] Figure 4 This is an overall structural diagram of the terminal base according to an embodiment of the present utility model.

[0021] Figure 5 This is a schematic structural diagram of the female plug terminal and the male plug pin in an embodiment of the present utility model.

[0022] Figure 6 It is the terminal in the embodiment of the present utility model.

[0023] Figure 7 It is an overall cross-sectional view of an embodiment of the present utility model.

[0024] Reference numerals

[0025] 1-Terminal body; 2-Upper cover; 201-Fixed slot; 3-Silicone waterproof pad; 301-First silicone waterproof layer; 302-Second silicone waterproof layer; 303-Buffer ring; 4-Terminal base; 401-Female plug; 4011-Positioning and fixing strip; 4012-Mounting ear; 4013-Crimping angle; 402-Male pin; 4014-Crown spring; 4015-Concave groove; 403-Mounting hole; 4031-Raised stopper; 404-Fixed ladder post; 405-Waterproof compartment; DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0028] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0029] like Figures 1 to 5As shown, a waterproof mating terminal and pin includes a terminal body 1, characterized in that: the terminal body 1 includes an upper cover 2, a silicone waterproof pad 3, and a terminal base 4. The terminal base 4 is provided with a female plug terminal 401 and a male pin 402. The female plug terminal 401 is provided with a hanging ear 4012 and a positioning and fixing bar 4011. The positioning and fixing bar 4011 is used to fix the female plug terminal 401 in the mounting hole 403 of the terminal base 4 to prevent the female plug terminal 401 from sliding between the terminal base 4. The hanging ear 4012 is also provided with a crown spring 4014, which is snap-fitted into the hanging ear 4012. One side of the male pin 402 is sleeved within the crown spring 4014. The male pin 402 has cylindrical ends. The crown spring 4014 is cylindrical in shape as a whole, and a concave groove 4015 is provided in the middle of the crown spring 4014. Since the crown spring 4014 is made of elastic material as a whole, the concave groove 4015 is used to assist in fixing and limiting the male pin 402 and the crown spring 4014 during the socketing process.

[0030] The silicone waterproof pad 3 is composed of a first silicone waterproof layer 301 and a second silicone waterproof layer 302. The first silicone waterproof layer 301 and the second silicone waterproof layer 302 are integrally formed. A buffer ring 303 is provided inside the first silicone waterproof layer 301 and the second silicone waterproof layer 302. The diameter of the buffer ring 303 gradually decreases from the outside to the inside. As can be seen from the figure, the overall diameter of the buffer ring 303 gradually decreases. This is mainly to construct the buffer rings 303 of different diameters into a multi-level buffer area during actual use, thereby enhancing the impact resistance of the terminal base. The four ends of the silicone waterproof pad 3 are rounded transitions, and the first silicone waterproof layer 301 and the second silicone waterproof layer 302 are arranged axially symmetrically. It should be noted that after the female terminal 4 and the male pin 402 are assembled and connected, the entirety passes through the first silicone waterproof layer 301 and the second silicone waterproof layer 302. Due to the symmetrical design of the entire silicone waterproof pad 3 and the arrangement design in which the diameter of the buffer ring 303 is gradually reduced, the silicone can utilize its own shrinkage elasticity and the silicone can wrap the entire female terminal 401, thereby improving the overall waterproof capability.

[0031] The upper cover 2 is provided with fixed slots 201 on both sides. The bottom of the fixed slots 201 is hollow, and the middle of the upper cover is also provided with a circular hole. The terminal base 4 is provided with fixed ladders 404 on both sides. The upper cover 2 and the terminal base 4 are fixedly connected to the fixed slots 201 via the fixed ladders 404. The terminal base 4 is provided with a watertight compartment 405, and the silicone watertight pad 3 is fixedly installed in the watertight compartment 405. Due to the certain elasticity of the silicone watertight pad 3, the silicone watertight pad 3 can completely abut the inner plane of the watertight compartment 405.

[0032] like Figure 5 , Figure 6 , Figure 7 As shown: a raised stopper 4031 is further provided inside the terminal base 4. When the female terminal 401 and the male pin 402 are assembled and installed in the mounting hole 403 inside the terminal base 4, the hanging ear 4012 on the female terminal 401 can be retracted vertically downward and moved in the opposite direction. The hanging ear 4012 cannot be retracted and can only be retracted in one direction. The setting of the hanging ear 4012 is to prevent the female terminal 401 from being displaced due to external plugging and unplugging from another aspect.

[0033] A crimping angle 4013 is also provided on one side of the female plug terminal 401. The crimping angle has a certain degree of elasticity. After the cable is placed in the female plug terminal 401, the two sides of the crimping angle 4013 can be gradually wrapped inward to tighten the cable, and at the same time, the connection between the female plug terminal 401 and the terminal base 4 is facilitated.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A waterproof plug-in terminal and pin, including a terminal body, characterized in that: The terminal body includes an upper cover, a silicone waterproof pad and a terminal base. A female plug terminal and a male pin are arranged inside the terminal base. The female plug terminal is provided with a hanging ear and a positioning and fixing strip. The positioning and fixing strip is used to fix the female plug terminal in the mounting hole of the terminal base to prevent sliding between the female plug terminal and the terminal base.

2. A waterproof plug-in terminal and pin according to claim 1, characterized in that: A crown spring is further provided inside the hanging ear, and the crown spring is clamped inside the hanging ear. One side of the male pin is sleeved in the crown spring, and both ends of the male pin are cylindrical.

3. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: The silicone waterproof pad is composed of a first silicone waterproof layer and a second silicone waterproof layer. The first silicone waterproof layer and the second silicone waterproof layer are integrally formed. Buffer rings are provided inside the first silicone waterproof layer and the second silicone waterproof layer. The diameter inside the buffer ring gradually decreases from the outside to the inside.

4. A waterproof plug-in terminal and plug-in pin according to claim 3, characterized in that: The four ends of the silicone waterproof pad (3) are rounded, and the first silicone waterproof layer and the second silicone waterproof layer are arranged axially symmetrically.

5. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: Fixed slots are provided on both sides of the upper cover, the bottom of the fixed slots is hollow, a circular hole is also provided in the middle of the upper cover, fixed ladder columns are provided on both sides of the terminal base, and the upper cover and the terminal base are fixed by the fixed ladder columns and the fixed slots.

6. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: The terminal base is provided with a watertight compartment, and the silicone watertight pad is fixedly installed in the watertight compartment. Since the silicone watertight pad itself has a certain elasticity, the silicone watertight pad can completely abut against the inner plane of the watertight compartment.

7. The waterproof plug-in terminal and plug-in pin according to claim 2, characterized in that: The crown spring is cylindrical as a whole, and a concave groove is provided in the middle of the crown spring. Since the crown spring is made of elastic material as a whole, the concave groove is used to assist in fixing and limiting the male pin and the crown spring during the socketing process.

8. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: A raised stopper is also provided inside the terminal base. When the female terminal and the male pin are installed in combination in the mounting hole inside the terminal base, the hanging ear on the female terminal can be retracted vertically downward and cannot be retracted when moved in the opposite direction, thereby preventing the female terminal from being displaced due to external plugging and unplugging.

9. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: A crimping angle is also provided on one side of the female plug terminal. The crimping angle has a certain degree of elasticity. After the cable is placed in the female plug terminal, the two sides of the crimping angle can be gradually wrapped inward to tighten the cable, and at the same time, the connection between the female plug terminal and the terminal base is facilitated.

10. The waterproof plug-in terminal and plug-in pin according to claim 1, characterized in that: The female plug terminal is an integrally formed structure, which is convenient for large-scale production and has a stronger overall strength than that of a split-type terminal.

Images