Sealing waterproof connector for direct-current power supply module

Abstract

The utility model relates to the technical field of connectors, in particular to a sealing waterproof connector for a direct-current power supply module, which comprises a connector head, a connector seat and a threaded sleeve sleeved on the outer side of the connector head, the threaded sleeve is in threaded connection with the connector seat through a threaded strip, and a fixing ring is fixedly mounted on the outer wall of the connector seat. A sealing ring is fixedly installed on the side, close to the threaded sleeve, of the fixing ring, and the threaded sleeve makes contact with the opposite side of the sealing ring. According to the utility model, through mutual cooperation of the threaded sleeve and the connector seat, when the connector head is connected with the connector seat, loosening or separation caused by external force pulling is effectively prevented, so that the connection stability is improved, and because the threaded sleeve is in contact with the opposite side of the sealing ring, the sealing performance is improved. Rainwater is effectively prevented from permeating through a gap between the connector base and the threaded sleeve, the electronic equipment is prevented from short circuit and even fire or electric shock risks, and the potential safety problems are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a sealed and waterproof connector for a DC power module. Background Art

[0002] A sealed and waterproof connector for a power module, that is, a device connecting two active devices, transmitting current or signals. A connector is a component that electronic engineering technicians often come into contact with. It bridges the communication between a blocked or isolated circuit in a circuit, enabling the current to flow and the circuit to achieve its intended function. A connector is an indispensable component in electronic devices.

[0003] Currently, the existing connector heads are generally connected to the connector sockets by plugging. During use, it is easy to be separated from the connector socket under the action of external force, and the connection is not only not tight enough but also allows rainwater to easily penetrate, posing a great potential safety hazard. Summary of the Utility Model

[0004] Aiming at the above-mentioned shortcomings of the prior art, the utility model provides a sealed and waterproof connector for a DC power module, which can effectively solve the problems in the prior art that it is easy to be separated from the connector socket under the action of external force, and the connection is not only not tight enough but also allows rainwater to easily penetrate, posing a great potential safety hazard.

[0005] To achieve the above object, the utility model is realized through the following technical solutions:

[0006] The utility model provides a sealed and waterproof connector for a DC power module, including a connector head and a connector socket. The outer wall of the connector head is in sliding contact with the inner wall of the connector socket. One end of the connector head close to the connector socket is fixedly installed with a pin, and a jack is provided at a corresponding position on the inner wall of the connector socket. The pin is snap-connected with the jack;

[0007] It further includes a threaded sleeve sleeved outside the connector head, and the inner wall of the threaded sleeve is in sliding contact with the outer wall of the connector socket. A threaded bar is fixedly installed on the outer wall of the connector socket. The threaded sleeve is threadedly connected to the connector socket through the threaded bar. A fixing ring is fixedly installed on the outer wall of the connector socket. A sealing ring is fixedly installed on one side of the fixing ring close to the threaded sleeve. The threaded sleeve is in contact with the opposite side of the sealing ring.

[0008] According to the above-mentioned sealed and waterproof connector for a DC power module, a sealing strip is fixedly installed at one end of the connector head close to the connector socket, and a sealing groove is provided at a corresponding position on the inner wall of the connector socket. The sealing strip is snap-connected with the sealing groove.

[0009] According to the above-mentioned sealed waterproof connector for a DC power supply module, an annular limiting groove is provided on the inner wall of the threaded sleeve, and a limiting ring is rotationally connected inside the annular limiting groove in a limited manner, and the limiting ring is fixedly connected to the opposite side of the connector head.

[0010] According to the above-mentioned sealed waterproof connector for a DC power supply module, an elastic cord is fixedly installed on the outer bottom wall of the fixing ring, and the other end of the elastic cord is fixedly installed with a sealing cover, and the sealing cover is snap-fitted with the connector base.

[0011] According to the above-mentioned sealed waterproof connector for a DC power supply module, a fixing seat is fixedly installed at one end of the connector base away from the connector head, and inner holes are provided at each corner inside the fixing seat.

[0012] According to the above-mentioned sealed waterproof connector for a DC power supply module, the sealing ring, the sealing strip and the limiting ring are all made of rubber.

[0013] The technical solution provided by the present utility model has the following beneficial effects compared with the known prior art:

[0014] Through the mutual cooperation of the threaded sleeve and the connector base in the present utility model, when the connector head is connected to the connector base, it effectively prevents loosening or separation caused by external pulling force, thereby improving the connection stability. And because the opposite sides of the threaded sleeve and the sealing ring are in contact, it effectively prevents rainwater from seeping in through the gap between the connector base and the threaded sleeve, avoiding potential short circuits in the electronic device and even causing fire or electric shock risks, and effectively reducing these potential safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0016] Figure 1 It is a structural schematic diagram of the present utility model;

[0017] Figure 2 It is an exploded view of the present utility model;

[0018] Figure 3 It is an internal sectional view of the present utility model.

[0019] Reference Signs: 1, connector head; 11, pin; 2, connector socket; 21, jack; 22, threaded bar; 3, threaded sleeve; 4, fixing ring; 41, sealing ring; 5, sealing strip; 51, sealing groove; 6, annular limiting groove; 61, limiting ring; 7, elastic cord; 71, sealing cover; 8, fixing base; 81, inner hole. Detailed Implementation Manner

[0020] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model will be further described below with reference to the embodiments.

[0022] Embodiment: Refer to Figures 1 to 3 , a DC power module sealed waterproof connector, comprising a connector head 1 and a connector socket 2. The outer wall of the connector head 1 is in sliding contact with the inner wall of the connector socket 2. A pin 11 is fixedly installed at one end of the connector head 1 close to the connector socket 2. A jack 21 is provided in the inner wall of the connector socket 2 at a position corresponding to the pin 11. The pin 11 is snap-connected to the jack 21. It further includes a threaded sleeve 3 sleeved outside the connector head 1, and the inner wall of the threaded sleeve 3 is in sliding contact with the outer wall of the connector socket 2. A threaded bar 22 is fixedly installed on the outer wall of the connector socket 2. The threaded sleeve 3 is threadedly connected to the connector socket 2 through the threaded bar 22. A fixing ring 4 is fixedly installed on the outer wall of the connector socket 2. A sealing ring 41 is fixedly installed on one side of the fixing ring 4 close to the threaded sleeve 3. The opposite side of the threaded sleeve 3 contacts the sealing ring 41. During use, the pin 11 at one end of the connector head 1 is inserted into the jack 21 provided inside the connector socket 2, and then the threaded sleeve 3 is rotated. Since the threaded sleeve 3 is threadedly connected to the connector socket 2 through the threaded bar 22 and the position of the connector socket 2 remains unchanged, the connector head 1 can be driven to move towards one side of the connector socket 2, so that the pin 11 is completely inserted into the inside of the jack 21, preventing loosening when the connector head 1 is connected to the connector socket 2 and improving the connection stability. Moreover, since the opposite side of the threaded sleeve 3 contacts the sealing ring 41, it effectively prevents water from entering the inside of the connector socket 2 through the gap between the connector socket 2 and the threaded sleeve 3, avoiding the occurrence of electric leakage.

[0023] One end of the connector head 1 close to the connector socket 2 is fixedly installed with a sealing strip 5. A sealing groove 51 is provided on the inner wall of the connector socket 2 at the corresponding position of the sealing strip 5. The sealing strip 5 is snap-fitted with the sealing groove 51. When the connector head 1 is connected to the connector socket 2, the sealing strip 5 is inserted into the inside of the sealing groove 51 at this time, further improving the sealing effect of the connection between the connector head 1 and the connector socket 2.

[0024] An annular limiting groove 6 is provided on the inner wall of the threaded sleeve 3. A limiting ring 61 is rotationally connected in the annular limiting groove 6 in a limited manner. The opposite side of the limiting ring 61 is fixedly connected to the connector head 1, which can limit the position of the threaded sleeve 3.

[0025] An elastic cord 7 is fixedly installed on the outer bottom wall of the fixing ring 4. The other end of the elastic cord 7 is fixedly installed with a sealing cover 71. The sealing cover 71 is snap-fitted with the connector socket 2. When the connector head 1 is not connected to the connector socket 2, the sealing cover 71 is used to cover the connector socket 2, so as to play the role of dust prevention and waterproofing, and the elastic cord 7 can prevent the sealing cover 71 from being lost, improving the use effect of the device.

[0026] One end of the connector socket 2 away from the connector head 1 is fixedly installed with a fixing seat 8. Inner holes 81 are provided at each corner inside the fixing seat 8, which is convenient for fixing the connector socket 2.

[0027] The materials of the sealing ring 41, the sealing strip 5 and the limiting ring 61 are all rubber. Since the rubber material has strong sealing performance, the sealing and waterproof effect of the device is further improved.

[0028] The working principle of the present utility model is as follows: When in use, first remove the sealing cover 71 from the connector socket 2, then insert the pin 11 at one end of the connector head 1 into the jack 21 inside the connector socket 2, and then rotate the threaded sleeve 3 clockwise. Since the threaded sleeve 3 is threadedly connected to the connector socket 2 through the thread strip 22, and the position of the connector socket 2 is fixed and unchanged, the connector head 1 can be driven to move towards the side of the connector socket 2, so that the pin 11 is completely inserted into the inside of the jack 21, preventing the connector head 1 from loosening or separating from the connector socket 2 due to external force pulling during use, thereby improving the connection stability. And because the opposite side of the threaded sleeve 3 contacts the sealing ring 41, it effectively prevents water from entering the inside of the connector socket 2 through the gap between the connector socket 2 and the threaded sleeve 3, avoiding causing short circuits in the electronic device and even triggering fire or electric shock risks, and effectively reducing these potential safety problems.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealed waterproof connector for a DC power module, comprising a connector head (1) and a connector seat (2), characterized in that: The outer wall of the connector head (1) is in sliding contact with the inner wall of the connector seat (2); a plug pin (11) is fixedly mounted on one end of the connector head (1) close to the connector seat (2); a plug hole (21) is provided on the inner wall of the connector seat (2) at a position corresponding to the plug pin (11); the plug pin (11) is snap-fitted with the plug hole (21); The connector further comprises a threaded sleeve (3) sleeved on the outside of the connector head (1), wherein the inner wall of the threaded sleeve (3) is in sliding contact with the outer wall of the connector seat (2), the outer wall of the connector seat (2) is fixedly mounted with a threaded strip (22), the threaded sleeve (3) is threadedly connected to the connector seat (2) via the threaded strip (22), the outer wall of the connector seat (2) is fixedly mounted with a fixing ring (4), a sealing ring (41) is fixedly mounted on a side of the fixing ring (4) close to the threaded sleeve (3), and the threaded sleeve (3) is in contact with the opposite side of the sealing ring (41).

2. A sealed waterproof connector for a DC power supply module according to claim 1, characterized in that: A sealing strip (5) is fixedly mounted on one end of the connector head (1) close to the connector seat (2); a sealing groove (51) is provided on the inner wall of the connector seat (2) at a position corresponding to the sealing strip (5); and the sealing strip (5) is snap-fitted to the sealing groove (51).

3. A sealed waterproof connector for a DC power supply module according to claim 2, characterized in that: An annular limiting groove (6) is provided on the inner wall of the threaded sleeve (3), and the inner limit rotation connection of the annular limiting groove (6) is connected to a limiting ring (61), and the limiting ring (61) is fixedly connected to the opposite side of the connector head (1).

4. A sealed waterproof connector for a DC power supply module according to claim 1, characterized in that: An elastic rope (7) is fixedly mounted on the outer bottom wall of the fixing ring (4), and a sealing cover (71) is fixedly mounted on the other end of the elastic rope (7), and the sealing cover (71) is clamped with the connector seat (2).

5. A sealed waterproof connector for a DC power supply module according to claim 1, characterized in that: A fixing seat (8) is fixedly mounted on one end of the connector seat (2) away from the connector head (1), and inner holes (81) are provided inside the fixing seat (8) and at each corner.

6. A sealed waterproof connector for a DC power supply module according to claim 3, characterized in that: The sealing ring (41), the sealing strip (5) and the limiting ring (61) are all made of rubber.

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