Low-voltage connector

Abstract

The utility model discloses a low-voltage connector, comprising a socket inner core which is arranged in a socket main body and is provided with a connecting hole; the terminal mounting seat is arranged in the plug main body, and a terminal core piece is arranged in the terminal mounting seat; the anti-misplug slots are formed in the inner wall of one end of the socket main body, three mounting grooves are formed in the outer wall of the plug main body, anti-misplug insertion strips are arranged in the mounting grooves, springs are arranged in the mounting grooves, the anti-misplug insertion strips and the anti-misplug slots are correspondingly arranged, and the anti-misplug insertion strips and the anti-misplug slots are arranged on the outer wall of the plug main body. According to the low-voltage connector, the anti-misplug slots and the anti-misplug strips are respectively arranged on the socket main body and the plug main body, and the anti-misplug strips are aligned with the anti-misplug slots to be inserted during connection, so that normal insertion of key positions and correct connection of power terminals can be ensured, and the use of the low-voltage connector is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a low-voltage connector. Background Art

[0002] Connectors can be called connectors, plugs and sockets, generally referring to electrical connectors. They are devices that connect two active devices to transmit current or signals. The function of the connector is to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the predetermined function. Low-voltage connectors are used for the access of distribution lines in distribution stations.

[0003] The Chinese patent publication number is CN219979902U, and the authorization announcement date is November 7, 2023. A low-voltage connector solves the problem that the existing low-voltage connector has a complex structure and is not waterproof. The technical solution adopted by the utility model is: a low-voltage connector includes a shell and a plurality of terminals. The shell includes a tubular body portion, and joints are formed at both ends of the body portion. A partition is arranged inside the body portion to separate the tube cavity into two parts. Each terminal is inserted through the partition, and the two ends of the terminal are respectively located in the tube cavity on both sides of the partition. The partition and the body portion are a whole, and the partition and the terminal are integrally injection molded. After the terminal is in place, the shell including the partition is injection molded so that the terminal is naturally embedded in the partition. There is also a sealing problem between the partition and the terminal, which can simplify the structure of the shell, improve the reliability of the low-voltage connector, reduce the manufacturing cost, and improve the assembly efficiency of the low-voltage connector. The low-voltage connector is used to connect the frequency converter and the compressor.

[0004] The existing low-voltage connector is not equipped with an anti-misinsertion mechanism. When operating the connection, the key position is not inserted normally. If the power terminal is not connected correctly, the positive and negative poles may be incorrectly installed, causing short circuits or other hazards, reducing the use effect of the low-voltage connector and failing to meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a low-voltage connector to solve the problem in the above background technology that the existing low-voltage connector is not provided with an anti-misinsertion mechanism, the key position is not normally inserted during the operation and connection, and the power terminal is incorrectly connected, which may cause the positive and negative poles to be incorrectly installed, causing short circuits or other hazards, reducing the use effect of the low-voltage connector and failing to meet the use requirements.

[0006] To achieve the above object, the utility model provides the following technical solution: a low voltage connector, comprising a socket body and a plug body, and further comprising:

[0007] A socket inner core is arranged inside the socket body, and the socket inner core is fixedly connected to the socket body, and a connecting hole is arranged on the socket inner core;

[0008] A terminal mounting seat is arranged inside the plug body, and the terminal mounting seat is fixedly connected to the plug body, a terminal core is arranged inside the terminal mounting seat, and the terminal core is fixedly connected to the terminal mounting seat, the terminal core is arranged corresponding to the connection hole, and the terminal core is plugged into the inner core of the socket;

[0009] An anti-mis-insertion slot is arranged on the inner wall of one end of the socket body, and three anti-mis-insertion slots are arranged. An installation slot is arranged on the outer wall of the plug body, and three installation slots are arranged. An anti-mis-insertion strip is arranged inside the installation slot, and the anti-mis-insertion strip is movably connected to the plug body. A spring is arranged inside the installation slot, and the two ends of the spring are respectively fixedly connected to the plug body and the anti-mis-insertion strip, the anti-mis-insertion strip is arranged corresponding to the anti-mis-insertion slot, the anti-mis-insertion slot and the anti-mis-insertion strip are both arranged in a trapezoidal shape, and the anti-mis-insertion strip is plugged into the socket body.

[0010] Preferably, an inlay hole rib position interference structure is provided on the outside of the plug body, and the inlay hole rib position interference structure is fixedly connected to the plug body.

[0011] Preferably, a flange sealing ring is provided on one side of the interference structure of the embedded hole rib position, and the flange sealing ring is arranged outside the plug body, and the flange sealing ring is fitted with the interference structure of the embedded hole rib position.

[0012] Preferably, a plug internal sealing ring is arranged inside the socket body, and the plug internal sealing ring is arranged outside the socket inner core, and the plug internal sealing ring is connected to the socket inner core as a whole.

[0013] Preferably, a lever-assisted locking structure is provided on the outside of one side of the socket body, and the lever-assisted locking structure is U-shaped, a first connecting rod is provided between the lever-assisted locking structure and the socket body, and the lever-assisted locking structure and the socket body are rotatably connected through the first connecting rod, a locking groove is provided on the lever-assisted locking structure, and there are two locking grooves, second connecting rods are provided on both sides of the plug body, there are two second connecting rods, and the second connecting rod is fixedly connected to the plug body, the second connecting rod is correspondingly provided to the locking groove, and the second connecting rod is slidably connected to the lever-assisted locking structure.

[0014] Preferably, one end of the socket body and the plug body are both provided with a cable sealing ring, and the cable sealing ring is connected to the socket body and the plug body as a whole.

[0015] Preferably, the shells of the socket body and the plug body both include a plastic substrate, an insulating layer, a particle coating and a graphite rod, the insulating layer and the particle coating are respectively arranged on the inner and outer sides of the plastic substrate, a graphite rod is arranged inside the plastic substrate, and the graphite rod is arranged perpendicular to the cross-section of the plastic substrate, and the plastic substrate, the insulating layer, the particle coating and the graphite rod are arranged as a whole.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model device is provided with an anti-misinsertion slot, an anti-misinsertion strip and a spring. The anti-misinsertion strip is inserted into the anti-misinsertion slot to play a guiding role. The spring applies a thrust to the anti-misinsertion strip, so that the anti-misinsertion strip inserted into the anti-misinsertion slot is in close contact with the socket body, which is used to prevent short circuit or other hazards caused by incorrect installation of positive and negative poles during operation. When the key position is not normally inserted, the power terminal cannot be connected, thereby improving the safety of use;

[0018] 2. The utility model device is used to reduce excessive flying chips falling when installing the embedded nut by setting the interference structure of the embedded hole rib position, prevent the flying chips from sticking to the waterproof ring and causing water leakage, etc., and improve the fixing effect of the connector;

[0019] 3. The utility model device is connected to the second connecting rod by setting a lever-assisted locking structure and a second connecting rod. It can be installed without tools during operation, which makes the operation more convenient and labor-saving. It can also limit the connected plug body to prevent the connector connection from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a three-dimensional diagram of the socket body of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the plug body of the utility model;

[0023] Figure 4 This is an exploded view of the plug body of the utility model;

[0024] Figure 5 This is a main structure diagram of the socket of the utility model;

[0025] Figure 6 This is a diagram showing the connection relationship between the plug body and the socket body of the utility model.

[0026] In the figure: 1. socket body; 2. plug body; 3. interference fit structure of inlay hole rib; 4. lever-assisted locking structure; 5. first connecting rod; 6. second connecting rod; 7. anti-misinsertion slot; 8. terminal mounting seat; 9. flange sealing ring; 10. socket inner core; 11. connecting hole; 12. plug inner sealing ring; 13. locking groove; 14. anti-misinsertion strip; 15. terminal core; 16. plastic matrix; 17. insulating layer; 18. particle coating; 19. graphite rod; 20. mounting groove; 21. spring; 22. cable sealing ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] See also Figure 1-6 The utility model provides an embodiment: a low-voltage connector, including a socket body 1 and a plug body 2, and also includes:

[0029] The socket inner core 10 is arranged inside the socket body 1, and the socket inner core 10 is fixedly connected to the socket body 1, and a connecting hole 11 is arranged on the socket inner core 10;

[0030] The terminal mounting seat 8 is arranged inside the plug body 2, and the terminal mounting seat 8 is fixedly connected to the plug body 2. A terminal core 15 is arranged inside the terminal mounting seat 8, and the terminal core 15 is fixedly connected to the terminal mounting seat 8. The terminal core 15 is arranged corresponding to the connecting hole 11, and the terminal core 15 is plugged into the socket inner core 10;

[0031] An anti-misinsertion slot 7 is arranged on the inner wall of one end of the socket body 1, and three anti-misinsertion slots 7 are arranged. A mounting slot 20 is arranged on the outer wall of the plug body 2, and three mounting slots 20 are arranged. An anti-misinsertion strip 14 is arranged inside the mounting slot 20, and the anti-misinsertion strip 14 is movably connected to the plug body 2. A spring 21 is arranged inside the mounting slot 20, and the two ends of the spring 21 are respectively fixedly connected to the plug body 2 and the anti-misinsertion strip 14. The anti-misinsertion strip 14 is arranged corresponding to the anti-misinsertion slot 7. The anti-misinsertion slot 7 and the anti-misinsertion strip 14 are both arranged in a trapezoidal shape, and the anti-misinsertion strip 14 is plugged into the socket body 1.

[0032] During use: the terminal core 15 is aligned with the connection hole 11 on the socket core 10 and inserted, and the plug body 2 is inserted into the socket body 1 for connection. When the plug body 2 is inserted into the socket body 1, the anti-misinsertion strip 14 will be inserted along the anti-misinsertion slot 7. The anti-misinsertion strip 14 guides the connected plug body 2 to ensure that the terminal core 15 is accurately connected to the socket core 10. The spring 21 applies a thrust to the anti-misinsertion strip 14, so that the anti-misinsertion strip 14 inserted into the anti-misinsertion slot 7 is in close contact with the socket body 1, which is used to prevent short circuit or other hazards caused by incorrect installation of the positive and negative poles during operation. When the key position is not normally inserted, the power terminal cannot be connected, thereby improving the safety of use.

[0033] See also Figure 1 , Figure 3 and Figure 4 The outside of the plug body 2 is provided with an inlay hole rib position interference structure 3, and the inlay hole rib position interference structure 3 is fixedly connected to the plug body 2. The inlay hole rib position interference structure 3 is used to reduce excessive flying chips falling when installing the inlay nut, and prevent the flying chips from sticking to the waterproof ring and causing water leakage.

[0034] See also Figure 1 , Figure 3 and Figure 4 A flange sealing ring 9 is provided on one side of the interference structure 3 of the embedded hole rib position, and the flange sealing ring 9 is arranged on the outside of the plug body 2. The flange sealing ring 9 fits with the interference structure 3 of the embedded hole rib position, and the flange sealing ring 9 is used for waterproof sealing of the socket flange surface.

[0035] See also Figure 2 A plug internal sealing ring 12 is arranged inside the socket body 1, and the plug internal sealing ring 12 is arranged outside the socket inner core 10. The plug internal sealing ring 12 is connected to the socket inner core 10 as a whole, and the plug internal sealing ring 12 is used for waterproof sealing after the plug and the socket are plugged together.

[0036] See also Figure 1 , Figure 2 and Figure 3A lever-assisted locking structure 4 is provided on the outside of one side of the socket body 1, and the lever-assisted locking structure 4 is U-shaped. A first connecting rod 5 is provided between the lever-assisted locking structure 4 and the socket body 1, and the lever-assisted locking structure 4 and the socket body 1 are rotatably connected through the first connecting rod 5. A locking groove 13 is provided on the lever-assisted locking structure 4, and there are two locking grooves 13. Second connecting rods 6 are provided on both sides of the plug body 2, and there are two second connecting rods 6, and the second connecting rods 6 are fixedly connected to the plug body 2. The second connecting rod 6 is correspondingly arranged to the locking groove 13, and the second connecting rod 6 is slidably connected to the lever-assisted locking structure 4. By rotating the lever-assisted locking structure 4 and connecting it to the second connecting rod 6, the connected plug body 2 is limited, which can prevent the plug body 2 from being loosened. It can be installed without tools during operation, and the operation is more convenient and labor-saving.

[0037] See also Figure 1 and Figure 2 A cable sealing ring 22 is provided at one end of the socket body 1 and the plug body 2, and the cable sealing ring 22 is connected to the socket body 1 and the plug body 2 as a whole, and the cable sealing ring 22 is used for waterproof sealing and fixing of the tail cable.

[0038] See also Figure 5 The shells of the socket body 1 and the plug body 2 both include a plastic substrate 16, an insulating layer 17, a particle coating 18 and a graphite rod 19. The insulating layer 17 and the particle coating 18 are respectively arranged on the inner and outer sides of the plastic substrate 16. A graphite rod 19 is arranged inside the plastic substrate 16, and the graphite rod 19 is arranged perpendicular to the cross section of the plastic substrate 16. The plastic substrate 16, the insulating layer 17, the particle coating 18 and the graphite rod 19 are arranged as a whole. The particle coating 18 can increase the friction of the outer walls of the socket body 1 and the plug body 2, and the socket body 1 and the plug body 2 can be better plugged and unplugged. The graphite rod 19 has good thermal conductivity. With the help of the graphite rod 19, heat conduction can be accelerated to improve the heat dissipation effect of the connector.

[0039] Working principle: the terminal core 15 is aligned with the connection hole 11 on the socket core 10 and inserted, and the plug body 2 is inserted into the socket body 1 for connection. When the plug body 2 is inserted into the socket body 1, the anti-misinsertion strip 14 will be inserted along the anti-misinsertion slot 7. The anti-misinsertion strip 14 guides the connected plug body 2 to ensure that the terminal core 15 is accurately connected to the socket core 10. The spring 21 applies a thrust to the anti-misinsertion strip 14, so that the anti-misinsertion strip 14 inserted into the anti-misinsertion slot 7 is in close contact with the socket body 1, which is used to prevent short circuits or other hazards caused by incorrect installation of the positive and negative poles during operation. When the key position is not normally inserted, the power terminal cannot be connected, thereby improving the safety of use; the interference structure 3 at the inlaid hole rib position is used to reduce When installing the embedded nut, excessive flying chips fall off, which can prevent the flying chips from sticking to the waterproof ring and causing water leakage; the flange sealing ring 9 is used for waterproof sealing of the socket flange surface, and the internal sealing ring 12 of the plug is used for waterproof sealing after the plug and the socket are plugged together; the rotating lever assists the locking structure 4 to connect with the second connecting rod 6, which plays a limiting role on the connected plug body 2 and can prevent the plug body 2 from being loosened. It can be installed without tools during operation, which is more convenient and labor-saving; the particle coating 18 can increase the friction between the outer walls of the socket body 1 and the plug body 2, and better connect the socket body 1 and the plug body 2 for plugging and unplugging. The graphite rod 19 has good thermal conductivity. With the help of the graphite rod 19, heat conduction can be accelerated to improve the heat dissipation effect of the connector.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low voltage connector, comprising a socket body (1) and a plug body (2), characterized in that: Also includes: A socket inner core (10), which is arranged inside the socket body (1), and the socket inner core (10) is fixedly connected to the socket body (1), and a connecting hole (11) is provided on the socket inner core (10); A terminal mounting seat (8) is arranged inside the plug body (2), and the terminal mounting seat (8) is fixedly connected to the plug body (2); a terminal core piece (15) is arranged inside the terminal mounting seat (8), and the terminal core piece (15) is fixedly connected to the terminal mounting seat (8); the terminal core piece (15) and the connecting hole (11) are arranged correspondingly, and the terminal core piece (15) is plugged into the socket inner core (10); An anti-misinsertion slot (7) is arranged on the inner wall of one end of the socket body (1), and three anti-misinsertion slots (7) are arranged. An installation slot (20) is arranged on the outer wall of the plug body (2), and three installation slots (20) are arranged. An anti-misinsertion strip (14) is arranged inside the installation slot (20), and the anti-misinsertion strip (14) is movably connected to the plug body (2). A spring (21) is arranged inside the installation slot (20), and two ends of the spring (21) are respectively fixedly connected to the plug body (2) and the anti-misinsertion strip (14). The anti-misinsertion strip (14) is arranged corresponding to the anti-misinsertion slot (7), and the anti-misinsertion slot (7) and the anti-misinsertion strip (14) are both arranged in a trapezoidal shape, and the anti-misinsertion strip (14) is plugged into the socket body (1).

2. A low voltage connector according to claim 1, characterized in that: An inlay hole rib position interference structure (3) is provided on the outside of the plug body (2), and the inlay hole rib position interference structure (3) is fixedly connected to the plug body (2).

3. A low voltage connector according to claim 2, characterized in that: A flange sealing ring (9) is provided on one side of the embedded hole rib position interference structure (3), and the flange sealing ring (9) is arranged outside the plug body (2), and the flange sealing ring (9) fits the embedded hole rib position interference structure (3).

4. A low voltage connector according to claim 1, characterized in that: A plug internal sealing ring (12) is arranged inside the socket body (1), and the plug internal sealing ring (12) is arranged outside the socket inner core (10), and the plug internal sealing ring (12) and the socket inner core (10) are connected as a whole.

5. A low voltage connector according to claim 1, characterized in that: A lever-assisted locking structure (4) is provided on the outside of one side of the socket body (1), and the lever-assisted locking structure (4) is arranged in a U-shape. A first connecting rod (5) is provided between the lever-assisted locking structure (4) and the socket body (1), and the lever-assisted locking structure (4) and the socket body (1) are rotatably connected via the first connecting rod (5). A locking groove (13) is provided on the lever-assisted locking structure (4), and there are two locking grooves (13). Second connecting rods (6) are provided on both sides of the plug body (2), and there are two second connecting rods (6). The second connecting rods (6) are fixedly connected to the plug body (2), the second connecting rods (6) are arranged corresponding to the locking grooves (13), and the second connecting rods (6) are slidably connected to the lever-assisted locking structure (4).

6. A low voltage connector according to claim 1, characterized in that: One end of the socket body (1) and the plug body (2) are both provided with a cable sealing ring (22), and the cable sealing ring (22) is connected to the socket body (1) and the plug body (2) as a whole.

7. A low voltage connector according to claim 1, characterized in that: The shells of the socket body (1) and the plug body (2) both comprise a plastic substrate (16), an insulating layer (17), a particle coating (18) and a graphite rod (19); the insulating layer (17) and the particle coating (18) are respectively arranged on the inner and outer sides of the plastic substrate (16); a graphite rod (19) is arranged inside the plastic substrate (16), and the graphite rod (19) is arranged perpendicular to the cross section of the plastic substrate (16); the plastic substrate (16), the insulating layer (17), the particle coating (18) and the graphite rod (19) are arranged as a whole.

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