Electrical connector

Abstract

The utility model discloses an electrical connector which comprises a socket and a plug, a slot and a plug bush which are matched with each other are arranged between the socket and the plug, a waterproof sealing ring is arranged between the slot and the plug bush, and connecting terminals which are connected with each other are arranged between the socket and the plug. The socket and the plug are provided with the slot and the plug sleeve which are matched with each other, the plug sleeve is inserted into the slot after connection, sealing and waterproofing are realized under the action of the waterproof sealing ring, and the waterproof effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to an electrical connector. Background Art

[0002] Solar photovoltaic modules use electrical connectors to quickly connect battery leads. However, existing electrical connectors are complex in structure, labor-intensive to assemble, and expensive. Furthermore, this complex structure results in numerous connector parts, thin plastic walls, and relatively low mechanical strength. Currently, common solar photovoltaic module electrical connectors on the market rely on axial rotation of the nut to create displacement, with the inner wall compressing the inner claw, which then uses the inner claw's force to compress the sealing ring, and finally, the deformation of the sealing ring compresses the cable. This structure primarily relies on the deformation of the sealing ring to tightly fit the cable and the base, thereby achieving a sealing effect. Furthermore, the deformation of the sealing ring also tightly positions the cable and the base, ensuring that the axial tension of the cable reaches the specified torque. Since solar photovoltaic modules are used outdoors and are often exposed to wind and rain, the wind can easily cause friction between the cable and the nut at the contact point, damaging the cable's protective sheath. This also affects the connector's service life and the sealing effect.

[0003] Aiming at the problems that existing electrical connectors for solar photovoltaic modules have poor connection tightness, sealing and firmness, and the cables are easily worn and not durable, an electrical connector is proposed. Utility Model Content

[0004] The purpose of the present utility model is to provide an electrical connector to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an electrical connector, comprising a socket and a plug, wherein a matching slot and socket are provided between the socket and the plug, a waterproof sealing ring is provided between the slot and the socket, and a connecting terminal is provided between the socket and the plug.

[0006] According to the above technical solution, the slot is provided on the socket, and the socket is fixedly connected to the surface of the plug. The inner wall of the slot is provided with a groove, and the waterproof sealing ring is fixed inside the groove.

[0007] According to the above technical solution, a plurality of fixing holes are provided through the side wall of the socket close to the plug, and fixed steel balls are movably provided inside the fixing holes. A fixing groove is provided on the outer wall of the socket corresponding to the fixed steel balls, and a movable ring is movably provided on the outside of the socket for limiting the movement of the fixed steel balls along the radial direction of the plug.

[0008] According to the above technical solution, the connecting terminal includes a connecting sleeve fixedly connected to the inside of the slot and a connecting column fixedly connected to the inside of the sleeve. The outer peripheral surface of the connecting column is provided with a plurality of coaxially arranged metal rings. The inner wall of the connecting sleeve is fixedly connected with contacts in contact with the metal rings, and the wires are electrically connected to the metal rings and the contacts respectively.

[0009] According to the above technical solution, the connecting sleeve is a tubular structure, and a plurality of strip-shaped through grooves are provided on the end surface of the connecting sleeve, and the strip-shaped through grooves pass through the end of the connecting sleeve close to the plug.

[0010] According to the above technical solution, a movable baffle is provided inside the connecting sleeve for internal movement, and a movable baffle ring is provided between the insert sleeve and the connecting column.

[0011] According to the above technical solution, a movable groove is provided inside the socket, a movable rod is movably provided inside the movable groove, the movable rod is fixedly connected to the movable baffle, and a first elastic element is provided between the movable groove and the movable rod, an annular groove is provided inside the plug, the movable baffle ring is movably arranged inside the annular groove, and a second elastic element is provided between the movable baffle ring and the annular groove.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention is provided with a socket and a plug, and by providing matching slots and sockets on the socket and the plug, the socket is inserted into the slot after connection, and the waterproof sealing ring is used to achieve sealing and waterproofing, and the waterproof effect is better, which has the following advantages:

[0013] 1. Waterproofing is achieved through the connection between the socket and the slot, with better waterproof effect;

[0014] 2. The socket and plug can be made of plastic or other materials to avoid friction between the cable and the nut and damage to the cable protective skin;

[0015] 3. The device relies on the internal connecting sleeve and the connecting column to achieve electrical connection of the cable. Multiple metal rings are set on the connecting column, and the connecting sleeve is provided with contacts connected to the metal rings, which greatly increases the number of connections. At the same time, there is no need to distinguish the direction when connecting the device, making the connection more convenient.

[0016] 4. Set up movable baffle and movable baffle ring. When the plug and socket are not connected, external dust and foreign matter will not enter the device and affect the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the matching structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model in the first state;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model in the second state;

[0021] Figure 4 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0022] In the figure: 1-socket, 2-plug, 3-slot, 4-sleeve, 5-waterproof sealing ring, 6-fixed steel ball, 7-fixed groove, 8-movable ring, 9-connecting sleeve, 10-connecting column, 11-metal ring, 12-contact, 13-strip groove, 14-movable baffle, 15-movable baffle ring, 16-movable groove, 17-movable rod, 18-annular groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution: an electrical connector, including a socket 1 and a plug 2, the socket 1 and the plug 2 are connected to the cable respectively, and the socket 1 and the plug 2 can be made of engineering plastics, such as Figure 1 As shown, the socket 1 and the plug 2 are respectively provided with a through hole for inserting the cable, and a cable protective sleeve is provided on the cable to reduce the friction between the cable and the plug 1 or the plug 2. After the wiring is completed, the socket 1 and the plug 2 can be injection molded to realize the connection between the socket 1 and the plug 2 and the cable. The protective cover is screwed on the end away from the socket 1 and the plug 2 to fix the cable protective sleeve to the socket 1 or the plug 2. A matching slot 3 and a socket 4 are provided between the socket 1 and the plug 2. The slot 3 is coaxially arranged with the socket 1. After the plug 1 and the plug 2 are connected, the outer wall of the socket 4 fits with the inner wall of the slot 3. A waterproof sealing ring 5 is provided between the slot 3 and the socket 4 to realize the waterproof function of the equipment. A connecting terminal is provided between the socket 1 and the plug 2, and the cable is electrically connected through the connecting terminal.

[0025] Specifically, the slot 3 is provided on the socket 1, and the socket 4 is fixedly connected to the surface of the plug 2. The inner wall of the slot 3 is provided with a groove, and the waterproof sealing ring 5 is fixed inside the groove. When the socket 1 and the plug 2 are connected, since the slot 3 is coaxially arranged with the socket 1 and the socket 4 is annular, there is no need to identify the direction during insertion, and the operation is very convenient.

[0026] Specifically, if Figure 4 As shown, the side wall of the socket 1 near the end of the plug 2 is penetrated with a plurality of fixing holes, and fixed steel balls 6 are movably provided inside the fixing holes. The fixed steel balls 6 are located inside the fixing holes and can move along the radial direction of the socket 1. The outer wall of the socket 4 is provided with a fixing groove 7 corresponding to the fixed steel balls 6. The fixing groove 7 is annular for easy fixation. The outer side of the socket 1 is provided with a movable ring 8 for limiting the movement of the fixed steel balls 6 along the radial direction of the plug 1. Figure 2 As shown, a spring is provided between the movable ring 8 and the socket 1. Under the action of the spring, the movable ring 8 is located outside the fixed steel ball 6, so that the fixed steel ball 6 passes through the fixing hole and is located inside the fixing groove 7, so that the socket 1 and the plug 2 are fixed, the connection is more convenient, and the waterproof performance is not affected.

[0027] Specifically, the connecting terminal includes a connecting sleeve 9 fixedly connected to the inside of the slot 3 and a connecting column 10 fixedly connected to the inside of the socket 4. The connecting column 10 is coaxially arranged with the socket 4. The outer peripheral surface of the connecting column 10 is provided with a plurality of coaxially arranged metal rings 11. The number of metal rings 11 is the number of wires that can be connected to the device. The inner wall of the connecting sleeve 9 is fixedly connected with a contact 12 in contact with the metal ring 11. After the socket 1 and the plug 2 are connected, the connecting sleeve 9 is sleeved on the outside of the connecting column 10, and the metal ring 11 is in contact with the contact 12 to achieve electrical connection between the wires. The wires are electrically connected to the metal ring 11 and the contact 12 respectively. The wiring method is a technical means well known to those skilled in the art and will not be described in detail.

[0028] Specifically, if Figure 1 As shown, the connecting sleeve 9 is a tubular structure, and a plurality of strip-shaped through-slots 13 are provided on the end surface of the connecting sleeve 9. The strip-shaped through-slots 13 pass through the end of the connecting sleeve 9 close to the plug 2. Under the action of the strip-shaped through-slots 13, the side wall of the connecting sleeve 9 is claw-shaped, making it easier for the connecting sleeve 9 to connect with the connecting column 10.

[0029] Specifically, a movable baffle 14 is provided inside the connecting sleeve 9, and a movable baffle ring 15 is provided between the plug sleeve 4 and the connecting column 10. Under normal circumstances, the movable baffle 14 is located inside the connecting sleeve 9, and the movable baffle ring 15 is located between the plug sleeve 4 and the connecting column 10 to prevent dust and impurities from entering and affecting the connection between the metal ring 11 and the contact 12.

[0030] Specifically, if Figure 3As shown, the socket 1 is provided with a movable groove 16 inside, and the movable groove 16 extends along the axial direction of the socket 1. A movable rod 17 is provided inside the movable groove 16. The movable rod 17 is fixedly connected to the movable baffle 14, and a first elastic element is provided between the movable groove 16 and the movable rod 17. The first elastic element can be a spring. A movable block can be provided at one end of the movable rod 17 away from the movable baffle 14, and a limiting ring is provided on the inner wall of the movable groove 16 to prevent the movable block from detaching from the movable groove 16. The first elastic element is provided inside the movable groove 16. Under the action of an elastic element, the movable baffle 14 is located at one end of the connecting sleeve 9 close to the plug 2 to prevent foreign matter from entering the interior of the connecting sleeve 9. Since the contact 12 inside the connecting sleeve 9 is protruding, in order to facilitate the movement of the movable baffle 14, the outer edges of both sides of the movable baffle 14 are respectively arc-shaped. The interior of the plug 2 is provided with an annular groove 18, and the movable baffle ring 15 is movably provided inside the annular groove 18, and a second elastic element is provided between the movable baffle ring 15 and the annular groove 18. The second elastic element can be a spring. Under the action of the second elastic element, as shown in FIG. Figure 3 As shown, the movable retaining ring 15 is located outside the connecting column 10. At this time, the socket 1 and the plug 2 are not connected. This is the second state of the device. Figure 2 As shown, after the socket 1 and the plug 2 are connected, the connecting sleeve 9 is sleeved on the outside of the connecting column 10, the movable baffle 14 retracts, and the movable baffle 15 also moves under the action of the connecting sleeve 9, so that the connecting sleeve 9 is connected to the connecting column 10. This is the first state of the device;

[0031] When using this device, after inserting the cable into the socket 1 or plug 2, the wire is electrically connected to the contact 12 on the connecting sleeve 9 and the metal ring 11 on the connecting column 10. A cable protective sleeve and a protective cover are pre-covered on the outside of the cable. The protective cover is screwed to the socket 1 or plug 2 to complete the connection between the device and the cable. At this time, under the action of the first elastic element and the second elastic element, the movable baffle 14 and the movable baffle ring 15 are respectively located inside the connecting sleeve 9 and outside the connecting column 10. Pull the movable ring 8, insert the socket 4 into the slot 3, and then release the movable ring 8. The movable ring 8 is reset to the outside of the fixed steel ball 6, so that the fixed steel ball 6 enters the fixed groove 7, completing the fixation between the socket 1 and the plug 2. At this time, the connecting sleeve 9 is sleeved on the outside of the connecting column 10, and the contacts 12 are in contact with the corresponding metal rings 11 to form an electrical connection, thereby realizing the electrical connection between the cables.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electrical connector comprising a socket (1) and a plug (2), characterized in that: A matching slot (3) and a socket (4) are provided between the socket (1) and the plug (2), a waterproof sealing ring (5) is provided between the slot (3) and the socket (4), a connecting terminal is provided between the socket (1) and the plug (2), the slot (3) is provided on the socket (1), and the socket (4) is fixedly connected to the surface of the plug (2), the inner wall of the slot (3) is provided with a groove, the waterproof sealing ring (5) is fixed inside the groove, a plurality of fixing holes are provided through the side wall of one end of the socket (1) close to the plug (2), and fixed steel balls (6) are movably provided inside the fixing holes, a fixing groove (7) is provided on the outer wall of the socket (4) corresponding to the fixed steel balls (6), and a movable ring (8) for limiting the movement of the fixed steel balls (6) along the radial direction of the plug (1) is provided on the outside of the socket (1).

2. An electrical connector according to claim 1, characterized in that: The connecting terminal comprises a connecting sleeve (9) fixedly connected to the inside of the slot (3) and a connecting column (10) fixedly connected to the inside of the plug sleeve (4); the outer peripheral surface of the connecting column (10) is provided with a plurality of coaxially arranged metal rings (11); the inner wall of the connecting sleeve (9) is fixedly connected with a contact (12) in contact with the metal ring (11); and the wires are electrically connected to the metal ring (11) and the contact (12) respectively.

3. An electrical connector according to claim 2, characterized in that: The connecting sleeve (9) is a tubular structure, and a plurality of strip-shaped through grooves (13) are provided on the end surface of the connecting sleeve (9), and the strip-shaped through grooves (13) pass through one end of the connecting sleeve (9) close to the plug (2).

4. The electrical connector according to claim 2, wherein: A movable baffle (14) is provided inside the connecting sleeve (9), and a movable baffle ring (15) is provided between the insert sleeve (4) and the connecting column (10).

5. An electrical connector according to claim 4, characterized in that: The socket (1) is provided with a movable groove (16) inside, a movable rod (17) is movably provided inside the movable groove (16), the movable rod (17) is fixedly connected to the movable baffle (14), and a first elastic element is provided between the movable groove (16) and the movable rod (17); the plug (2) is provided with an annular groove (18) inside, the movable baffle ring (15) is movably arranged inside the annular groove (18), and a second elastic element is provided between the movable baffle ring (15) and the annular groove (18).

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