An electrical connector with self-locking function

Abstract

The utility model relates to the technical field of electric connector, specifically is a kind of electric connector with self-locking function, including lower shell, the female core is fixedly installed on the lower shell, the male core is inserted in the female core, the upper shell is fixedly installed on the male core, the upper shell is in contact with lower shell, self-locking mechanism is installed on the lower shell and the upper shell, the self-locking mechanism includes clamping plate and connecting shaft, the both sides of lower shell are fixedly installed with connecting shaft, the connecting shaft is rotatably connected with clamping plate, connecting rod is fixedly installed between two clamping plates, the both sides of upper shell are fixedly connected with clamping lever, clamping plate and clamping lever are engaged, rubber pad is bonded in the clamping plate, clamping lever is in contact with rubber pad;Clamping plate rotates around connecting shaft, so that clamping lever and its accurate clamping, cooperate the elastic extrusion of rubber pad, form the locking structure of tight and having buffering effect, can prevent upper shell and lower shell loose.

Description

Technical Field

[0001] This utility model relates to an electrical connector, specifically an electrical connector with a self-locking function, belonging to the field of electrical connector technology. Background Technology

[0002] As a core component in electrical systems for controlling circuit connection and disconnection, the stability of electrical connectors directly impacts the reliability of equipment operation. The operating principle of electrical connectors is based on the synergistic effect of electrical connection and mechanical fit. The core of an electrical connector is the mating of the male and female cores. The conductive pins of the male core insert into the conductive sockets of the female core, forming a current path through metal-to-metal contact, allowing electrical energy and signals to be transmitted from one end to the other. An insulating shell surrounds the male and female cores, separating the conductive components of different circuits to prevent short circuits. Simultaneously, the shell isolates the internal conductive components from the external metal structure, preventing electric shock to personnel or external interference.

[0003] However, existing connectors mostly rely on a single snap or thread locking, which is prone to loosening under long-term vibration. The snap structure may reduce the locking force due to fatigue deformation, while the threaded connection may experience thread slippage due to vibration, resulting in poor contact between the male and female cores, causing circuit interruption, signal attenuation, or even arcing, posing a safety hazard, especially in high-current transmission scenarios. Utility Model Content

[0004] The purpose of this utility model is to provide an electrical connector with a self-locking function in order to solve the above problems. The locking plate rotates around the connecting shaft, so that the locking rod is precisely engaged with it. With the elastic compression of the rubber pad, a tight and buffered locking structure is formed, which can prevent the upper shell and the lower shell from loosening.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an electrical connector with a self-locking function, comprising a lower shell, a female core fixedly mounted on the lower shell, a male core inserted into the female core, an upper shell fixedly mounted on the male core, the upper shell abutting against the lower shell, a self-locking mechanism mounted on the lower shell and the upper shell, the self-locking mechanism comprising a locking plate and a connecting shaft, connecting shafts fixedly mounted on both sides of the lower shell, locking plates rotatably connected to the connecting shafts, a connecting rod fixedly mounted between the two locking plates, locking rods fixedly connected to both sides of the upper shell, the locking plates and locking rods engaging with each other, a rubber pad adhered inside the locking plate, and the locking rods contacting the rubber pad.

[0006] Preferably, the self-locking mechanism further includes a groove and a slot, the connecting rod has a groove at its center, the card plate has a slot, and a card rod is engaged with the slot.

[0007] Preferably, the connecting rod is located at the top of the lower shell, and the rubber pad and the card plate near the card slot are both arranged with an arc surface structure.

[0008] Preferably, a limiting mechanism is fixed at the top of the upper shell. The limiting mechanism includes a mounting block and a telescopic spring. The mounting block is fixedly connected to the top of the upper shell. A telescopic spring is fixedly installed inside the mounting block. A slider is fixedly connected to the telescopic spring. A locking block is fixedly connected to the slider. The locking block is engaged with the connecting rod.

[0009] Preferably, the slider and the locking block are slidably connected to the mounting block, and the locking block is located in the groove.

[0010] Preferably, the end of the card block facing away from the mounting block is arranged in an arc shape, and the top of the slider is also arranged in an arc shape.

[0011] Preferably, a protective mechanism is connected to the end of the upper shell. The protective mechanism includes a retaining ring and a connecting wire. The connecting wire is electrically connected inside the upper shell. A retaining ring is fixedly installed on the upper shell near the connecting wire, and a sleeve is threaded onto the retaining ring.

[0012] Preferably, the protective mechanism further includes a washer, and the end of the sleeve opposite to the retaining ring is bonded with the washer, and the washer is in contact with the connecting wire.

[0013] The beneficial effects of this utility model are as follows: the locking plate rotates around the connecting shaft, so that the locking rod and the locking plate are precisely engaged. Combined with the elastic compression of the rubber pad, a tight and buffered locking structure is formed. The arc design of the rubber pad increases the friction and absorbs vibration energy, avoiding wear caused by rigid contact between the locking rod and the locking plate. It can still maintain stable locking under continuous vibration environment, and its anti-loosening ability is improved compared with the traditional buckle structure. The connecting rod connects the locking plates on both sides to achieve synchronous locking, ensuring that the upper shell and the lower shell are subjected to balanced force, avoiding eccentric contact between the male core and the female core caused by loosening on one side, and ensuring the stability of current or signal transmission. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the upper shell and the mounting block of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the connecting rod and the card plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the upper shell and the retaining ring of this utility model;

[0018] Figure 5 for Figure 4 The diagram shows an enlarged view of part A.

[0019] In the diagram: 1. Lower shell; 2. Upper shell; 3. Protective mechanism; 301. Snap ring; 302. Tube sleeve; 303. Washer; 304. Connecting wire; 4. Limiting mechanism; 401. Mounting block; 402. Slider; 403. Locking block; 404. Telescopic spring; 5. Self-locking mechanism; 501. Connecting rod; 502. Locking plate; 503. Locking rod; 504. Coupling shaft; 505. Groove; 506. Slot; 507. Rubber pad; 6. Female core; 7. Male core. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5As shown, an electrical connector with a self-locking function includes a lower shell 1, on which a female core 6 is fixedly mounted, and a male core 7 is inserted into the female core 6. An upper shell 2 is fixedly mounted on the male core 7, and the upper shell 2 abuts against the lower shell 1. The pin structure of the male core 7 is inserted into the socket structure of the female core 6, and a current or signal path is formed through the tight contact of the conductive contacts to realize the transmission of electrical energy or electrical signals. After the upper shell 2 abuts against the lower shell 1, it provides physical protection for the male core 7 and the female core 6, preventing the external environment from directly interfering with the contact parts. The lower shell 1 and upper shell 2 are equipped with a self-locking mechanism 5, which includes a locking plate 502 and a connecting shaft 504. Connecting shafts 504 are fixedly installed on both sides of the lower shell 1. Locking plates 502 are rotatably connected to the connecting shafts 504. By grasping the connecting rod 501 and rotating it towards the upper shell 2, the connecting rod 501 causes the locking plates 502 fixed on both sides to rotate synchronously, allowing the locking plates 502 to rotate along the connecting shafts 504. A connecting rod 501 is fixedly installed between the two locking plates 502, and the connecting rod 501 is located at the lower... At the top of the shell 1, the connecting rod 501 has a groove 505 in the center. Both sides of the upper shell 2 are fixedly connected with locking rods 503. The locking plate 502 has a locking groove 506, and the locking rod 503 is engaged in the locking groove 506. When the locking groove 506 on the locking plate 502 contacts the locking rods 503 on both sides of the upper shell 2, the connecting rod 501 continues to rotate until the locking rod 503 is completely embedded in the locking groove 506. Then, with the elastic compression of the rubber pad 507, a tight and buffered locking structure is formed. The locking plate 502 and the locking rod 503 are engaged and connected. A rubber pad 507 is adhered inside the locking plate 502. The locking rod 503 contacts the rubber pad 507. Both the rubber pad 507 and the part of the locking plate 502 near the locking groove 506 are designed with an arc surface structure. The arc surface design of the rubber pad 507 increases the friction and absorbs vibration energy, avoiding wear caused by rigid contact between the locking rod 503 and the locking plate 502. It can still maintain stable locking under continuous vibration environment, and its anti-loosening ability is improved compared with the traditional buckle structure.

[0022] As a technical optimization of this utility model, a limiting mechanism 4 is fixed at the top of the upper shell 2. The limiting mechanism 4 includes a mounting block 401 and a telescopic spring 404. The mounting block 401 is fixedly connected to the top of the upper shell 2. The telescopic spring 404 is fixedly installed inside the mounting block 401. A slider 402 is fixedly connected to the telescopic spring 404. The top of the slider 402 is arc-shaped. A locking block 403 is fixedly connected to the slider 402. The locking block 403 is engaged with the connecting rod 501. The slider 402 and the locking block 403 are slidably connected to the mounting block 401. The locking block 403 is located in the groove 505. The end of the locking block 403 facing away from the mounting block 401 is arc-shaped. The telescopic spring 404 inside the mounting block 401 pushes the slider 402 to move, causing the locking block 403 to insert into the groove 505 of the connecting rod 501, thus mechanically limiting the connecting rod 501 and preventing it from rotating in the opposite direction due to vibration, thereby completing a secondary locking.

[0023] As a technical optimization of this utility model, a protective mechanism 3 is connected to the end of the upper shell 2. The protective mechanism 3 includes a retaining ring 301 and a connecting wire 304. The connecting wire 304 is electrically connected inside the upper shell 2. One end of the connecting wire 304 is connected to the internal wiring terminal of the upper shell 2 to ensure a firm electrical connection. A retaining ring 301 is fixedly installed on the upper shell 2 near the connecting wire 304. A sleeve 302 is threaded onto the retaining ring 301. A washer 303 is glued to the end of the sleeve 302 away from the retaining ring 301. By rotating the sleeve 302, it is tightly connected to the retaining ring 301 on the upper shell 2 through the thread. At this time, the washer 303 at the end of the sleeve 302 will be tightly attached to the outer surface of the connecting wire 304, forming a seal and fixation to prevent the internal wiring from loosening due to cable pulling. The washer 303 is in contact with the connecting wire 304.

[0024] In use, the operator first holds the upper shell 2, aligns the male core 7 with the female core 6 on the lower shell 1, ensuring their central axes are aligned, and slowly pushes it in until the upper shell 2 and lower shell 1 are in tight contact, completing the initial alignment of the electrical connection; one end of the connecting wire 304 is connected to the internal terminal of the upper shell 2 to ensure a secure electrical connection; rotating the sleeve 302 allows it to be tightly connected to the retaining ring 301 on the upper shell 2 via threads. At this time, the washer 303 at the end of the sleeve 302 will be tightly against the outer surface of the connecting wire 304, forming a seal and fixing, preventing the internal wiring from loosening due to cable pulling; the male core 7 is inserted... The needle structure is inserted into the socket structure of the female core 6, forming a current or signal path through the tight contact of the conductive contacts, realizing the transmission of electrical energy or electrical signals; after the upper shell 2 abuts against the lower shell 1, it provides physical protection for the male core 7 and the female core 6, preventing the external environment from directly interfering with the contact parts; after the lower shell 1 and the upper shell 2 are installed, hold the connecting rod 501 and rotate it towards the upper shell 2. The connecting rod 501 drives the fixed clamping plates 502 on both sides to rotate synchronously, so that the clamping plates 502 can rotate along the connecting shaft 504; when the clamping slot 506 on the clamping plate 502 contacts the clamping rods 503 on both sides of the upper shell 2, continue to rotate the connecting rod 501, straight The locking rod 503 is fully embedded in the slot 506, and with the elastic compression of the rubber pad 507, a tight and cushioning locking structure is formed. The arc-shaped design of the rubber pad 507 increases friction and absorbs vibration energy, preventing wear between the locking rod 503 and the locking plate 502 due to rigid contact. It maintains stable locking even under continuous vibration, improving its anti-loosening capability compared to traditional snap-fit ​​structures. During locking, the telescopic spring 404 inside the mounting block 401 pushes the slider 402 to move, causing the locking block 403 to insert into the groove 505 of the connecting rod 501, mechanically limiting the connecting rod 501 and preventing it from slipping. Due to the vibration, the reverse rotation completes the secondary locking; push the top of the slider 402 towards the mounting block 401, the slider 402 compresses the telescopic spring 404, causing the locking block 403 to disengage from the groove 505 of the connecting rod 501, thereby releasing the limit on the connecting rod 501; rotate the connecting rod 501 in the reverse direction, causing the locking plate 502 to rotate around the connecting shaft 504, causing the locking groove 506 to separate from the locking rod 503, and the rubber pad 507 to return to its original state; after the locking plate 502 is completely disengaged from the locking rod 503, stop rotating the connecting rod 501, hold the upper shell 2 and pull it outward, so that the male core 7 can be smoothly pulled out from the female core 6, completing the separation of the connector.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric connector with self-locking function, comprising a lower shell (1), characterized in that: A female core (6) is fixedly installed on the lower shell (1), and a male core (7) is inserted into the female core (6). An upper shell (2) is fixedly installed on the male core (7). The upper shell (2) abuts against the lower shell (1). A self-locking mechanism (5) is installed on the lower shell (1) and the upper shell (2). The self-locking mechanism (5) includes a locking plate (502) and a connecting shaft (504). Connecting shafts (504) are fixedly installed on both sides of the lower shell (1). 04), a clamping plate (502) is rotatably connected to the connecting shaft (504), a connecting rod (501) is fixedly installed between the two clamping plates (502), and clamping rods (503) are fixedly connected to both sides of the upper shell (2). The clamping plate (502) and the clamping rod (503) are engaged and connected. A rubber pad (507) is adhered inside the clamping plate (502), and the clamping rod (503) contacts the rubber pad (507).

2. The electrical connector with self-locking function according to claim 1, characterized in that: The self-locking mechanism (5) further includes a groove (505) and a slot (506). The center of the connecting rod (501) is provided with a groove (505), the slot (506) is provided in the card plate (502), and a card rod (503) is engaged and installed in the slot (506).

3. The electrical connector with self-locking function according to claim 1, characterized in that: The connecting rod (501) is located at the top of the lower shell (1), and the rubber pad (507) and the card plate (502) near the card slot (506) are both arranged with an arc surface structure.

4. The electrical connector with self-locking function according to claim 1, characterized in that: The top of the upper shell (2) is fixed with a limiting mechanism (4). The limiting mechanism (4) includes a mounting block (401) and a telescopic spring (404). The top of the upper shell (2) is fixedly connected to the mounting block (401). The telescopic spring (404) is fixedly installed inside the mounting block (401). The telescopic spring (404) is fixedly connected to the telescopic spring (404). The slider (402) is fixedly connected to the slider (402). The locking block (403) is engaged with the connecting rod (501).

5. The electrical connector with self-locking function according to claim 4, characterized in that: The slider (402) and the locking block (403) are slidably connected to the mounting block (401), and the locking block (403) is located in the groove (505).

6. The electrical connector with self-locking function according to claim 4, characterized in that: The end of the card block (403) facing away from the mounting block (401) is arranged in an arc shape, and the top of the slider (402) is also arranged in an arc shape.

7. The electrical connector with self-locking function according to claim 1, wherein: The upper shell (2) is connected to a protective mechanism (3) at its end. The protective mechanism (3) includes a retaining ring (301) and a connecting line (304). The connecting line (304) is electrically connected inside the upper shell (2). The retaining ring (301) is fixedly installed on the upper shell (2) near the connecting line (304). A sleeve (302) is threaded onto the retaining ring (301).

8. The electrical connector with self-locking function according to claim 7, characterized in that: The protective mechanism (3) also includes a washer (303), and the end of the sleeve (302) facing away from the retaining ring (301) is bonded with the washer (303), and the washer (303) is in contact with the connecting line (304).

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