A connector

Abstract

The utility model provides a kind of connector, including socket and plug, plug includes first end cover, first shell, lock catch and plug terminal, plug terminal is installed in first shell;First end cover is equipped with first limit slot and installation groove, first shell is equipped with respectively with the first protruding of corresponding first limit slot and with the installation cavity of corresponding installation groove, first protruding is fixed with first limit slot cooperation;Lock catch includes the main part of being embedded in installation groove and multiple elastic arms being connected to main part and mutually spaced, the tail end of elastic arm is equipped with limit buckle, the limit buckle of multiple elastic arms is respectively set along different direction, second protruding is set in installation cavity corresponding each limit buckle, second protruding is inserted into installation cavity and with corresponding limit buckle abutment cooperation;The one end of first shell is fixed in first end cover, the other end is used for with the second shell of socket insertion joint cooperation. Through the implementation of the application scheme, good failure protection can be formed for the plug after shaking.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor accessories, and in particular relates to a connector. Background Technology

[0002] Connectors, also called plugs or connectors, are used to connect two active devices to transmit current and / or signals. Connectors typically consist of a plug and a socket, each with corresponding terminals. The socket is the static part of the connector, mounted on the equipment; the plug is the movable part, manually inserted into the socket by the user. Traditional connector plugs are prone to wobbling when subjected to equipment vibration or external forces, leading to connector failure. Utility Model Content

[0003] The technical objective of this utility model is to provide a connector that solves the problem that connectors in related technologies are easily affected by external forces and may fail.

[0004] To solve the above-mentioned technical problems, this utility model is implemented as follows: a connector, comprising: a socket and a plug adapted to the socket;

[0005] The plug includes a first end cap, a first housing, a latch, and plug terminals, with the plug terminals installed inside the first housing. The first housing includes a first end and a second end. The first end cap has a first assembly cavity adapted to the first end. The first end cap has a first limiting groove communicating with the first assembly cavity, an installation groove spaced apart from the first limiting groove, and a clearance opening for wires to pass through. The outer periphery of the first end has a first protrusion corresponding to the first limiting groove. The first end is embedded in the first assembly cavity, and the first protrusion is fixed in place with the first limiting groove. The first housing has an installation cavity corresponding to the installation groove. The latch includes a main body embedded in the installation groove and multiple elastic arms connected to the main body. The multiple elastic arms are spaced apart from each other. The end of each elastic arm away from the main body has a limiting buckle. The limiting buckles of the multiple elastic arms are respectively arranged in different directions. The installation cavity has a second protrusion corresponding to each limiting buckle. The second protrusion is used to insert into the installation cavity and abut against the corresponding limiting buckle.

[0006] The socket includes a second housing and socket terminals mounted within the second housing. The second housing also forms a mating cavity adapted to the second end for mating with the second end to achieve a connection between the plug terminals and the socket terminals.

[0007] Furthermore, the latch includes two elastic arms spaced apart along a first direction, the limiting buckles of the two elastic arms are oriented in opposite directions, and the limiting buckles of the two elastic arms are distributed along a second direction perpendicular to the first direction, both the first and second directions being perpendicular to the insertion direction; the first housing is also provided with a limiting edge extending into the mounting cavity.

[0008] Furthermore, two sub-cavities are formed in the mounting cavity, and two sets of reset components are connected to the main body; each set of reset components includes two elastic arms that are spaced apart along the first direction and whose limit buckles face opposite directions.

[0009] Furthermore, claws are installed inside the first and second housings respectively, and the plug terminals and socket terminals are clamped by the claws.

[0010] Furthermore, the claw includes an abutment portion and multiple locking teeth connected to the abutment portion. The inner wall of the first housing and the inner wall of the second housing respectively abut against the outer peripheral side of the corresponding abutment portion. The abutment portion has a wire-passing hole. The multiple locking teeth surround to form a wire-passing cavity. One end of the plug terminal and one end of the socket terminal are respectively clamped in the corresponding wire-passing cavity by the locking teeth. The size of the wire-passing cavity gradually decreases from the end closer to the abutment portion to the end farther away from the abutment portion.

[0011] Furthermore, the socket also includes a second end cap with a second assembly cavity, a section of the second housing is embedded in the second end cap, and sealing bodies are respectively provided between the first end cap and the corresponding claw, and between the second end cap and the corresponding claw. The inner walls of the first housing and the second housing respectively abut and seal with the corresponding sealing bodies; the sealing body is provided with a sealing cavity for the wire to pass through.

[0012] Furthermore, multiple spaced sealing rings are protruding from the outer periphery of the sealing body and / or the wall of the sealing cavity.

[0013] Furthermore, a sealing element is fitted on the outer periphery of the first housing.

[0014] Furthermore, the first housing includes a main housing and a secondary housing connected to the outside of the main housing. The plug terminal is fixed inside the main housing. The main housing and the secondary housing together form an installation cavity. The insertion cavity is used to insert and cooperate with the main housing. The secondary housing is also provided with a limiting part extending in the insertion direction. A second limiting groove is provided in the limiting part. A third protrusion corresponding to the second limiting groove is provided on the outer periphery of the second housing. The third protrusion is used to fasten and fix with the second limiting groove.

[0015] Furthermore, the first protrusion and / or the third protrusion are provided with guide ramps.

[0016] Compared with existing technologies, the connector of this invention has the following advantages: The first end cover fits over the first end of the first housing. The first end cover and the first housing achieve a locking fit through the engagement of the first protrusion and the first limiting groove. The wire corresponding to the plug terminal can pass through the end cover and connect to the plug terminal, installing the plug terminal inside the first housing, thus achieving primary locking. A latch is provided between the first end cover and the first housing. The latch includes a main body installed in the mounting groove and an elastic arm extending into the mounting cavity. The elastic arms facing different directions engage with the second protrusion in the mounting cavity, achieving secondary locking. When the plug is subjected to external force or the device connected to the socket shakes, causing the first end cover and housing to become displaced (i.e., the limiting effect between the first protrusion and the first limiting groove fails), the latch can act between the first end cover and the first housing, causing them to automatically return to their original positions. This provides good failure protection for the plug and reduces the probability of connector connection failure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the connector in an embodiment of this utility model;

[0018] Figure 2 It is along Figure 1 A cross-sectional view of the bearing along the AA direction;

[0019] Figure 3 This is an exploded view of the connector in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the latch in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the first shell in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the overall structure of the second shell in an embodiment of this utility model;

[0023] Figure 7 Yes Figure 3 The sectional view of the sealing body along the BB direction.

[0024] In the accompanying drawings, the reference numerals denote: 100, plug; 200, socket; 1, first end cap; 11, first assembly cavity; 12, first limiting groove; 13, mounting groove; 2, first housing; 21, main housing; 211, first protrusion; 22, secondary housing; 221, limiting part; 222, second limiting groove; 223, second protrusion; 23, mounting cavity; 24, seal; 3, latch; 31, main body; 32, elasticity. Arm; 33. Limiting buckle; 4. Plug terminal; 5. Second end cover; 51. Second assembly cavity; 52. Third limiting groove; 6. Second housing; 61. Insertion cavity; 62. Guide groove; 63. Third protrusion; 64. Fourth protrusion; 7. Socket terminal; 8. Claw; 81. Abutment part; 811. Wire passage hole; 82. Claw tooth; 821. Wire passage cavity; 9. Sealing body; 91. Sealing cavity; 92. Positioning hole; 93. Sealing ring. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] Example:

[0029] like Figure 1-7As shown, in this embodiment, the connector includes: a socket 200 and a plug 100 adapted to the socket 200; the plug 100 includes a first end cap 1, a first housing 2, a latch 3, and a plug terminal 4, the plug terminal 4 being installed inside the first housing 2; the first housing 2 includes a first end and a second end, the first end cap 1 having a first assembly cavity 11 adapted to the first end, the first end cap 1 having a first limiting groove 12 communicating with the first assembly cavity 11, a mounting groove 13 spaced apart from the first limiting groove 12, and a clearance opening for wires to pass through, the outer periphery of the first end having a first protrusion 211 corresponding to the first limiting groove 12, the first end being embedded in the first assembly cavity 11, and the first protrusion 211 being fixed in place with the first limiting groove 12; the first housing 2 having a mounting groove 13 The corresponding mounting cavity 23; the latch 3 includes a main body 31 embedded in the mounting groove 13 and a plurality of elastic arms 32 connected to the main body 31. The plurality of elastic arms 32 are spaced apart from each other. A limiting buckle 33 is provided at the end of the elastic arm 32 away from the main body 31. The limiting buckles 33 of the plurality of elastic arms 32 are respectively arranged in different directions. A second protrusion 223 is provided in the mounting cavity 23 corresponding to each limiting buckle 33. The second protrusion 223 is used to insert into the mounting cavity 23 and abut against the corresponding limiting buckle 33; the socket 200 includes a second housing 6 and a socket terminal 7 installed in the second housing 6. The second housing 6 also forms a plug cavity 61 adapted to the second end. The plug cavity 61 is used to plug into the second end to realize the connection and conduction between the plug terminal 4 and the socket terminal 7.

[0030] Specifically, the first end cap 1 covers the first end of the first housing 2. The first end cap 1 and the first housing 2 are locked together by the cooperation between the first protrusion 211 and the first limiting groove 12. The wire corresponding to the plug terminal 4 can pass through the end cap and connect to the plug terminal 4, installing the plug terminal 4 in the first housing 2 to achieve primary locking. A latch 3 is provided between the first end cap 1 and the first housing 2. The latch 3 includes a main body 31 installed in the mounting groove 13 and an elastic arm 32 extending into the mounting cavity 23, so that the elastic arms 32 facing different directions respectively cooperate with the second protrusion 223 in the mounting cavity 23 to achieve secondary locking. When the plug 100 is subjected to external force or the device connecting the socket 200 shakes, causing the first end cover 1 to become displaced from the housing, that is, when the limiting effect between the first protrusion 211 and the first limiting groove 12 fails, the latch 3 can act between the first end cover 1 and the first housing 2, causing the first end cover 1 and the first housing 2 to automatically return to their original positions, thus providing good failure protection for the plug 100 and reducing the probability of connector connection failure.

[0031] In this embodiment, as Figure 4 and 5As shown, the latch 3 includes two elastic arms 32 spaced apart along a first direction. The limiting buckles 33 of the two elastic arms 32 face opposite directions, and the limiting buckles 33 of the two elastic arms 32 are distributed along a second direction perpendicular to the first direction. Both the first and second directions are perpendicular to the insertion direction. The first housing 2 also has a limiting edge extending into the mounting cavity 23. This arrangement and orientation design of the elastic arms 32 ensures a good secondary locking effect for the plug 100 in all directions of displacement, improving the safety and reliability of the connector.

[0032] Furthermore, in this embodiment, the mounting cavity 23 has two sub-cavities, and the main body 31 is connected to two sets of reset components; each set of reset components includes two elastic arms 32 spaced apart along the first direction and with the limiting buckles 33 facing opposite directions. That is, four elastic arms 32 are provided, so that one sub-cavity interacts with two elastic arms 32 facing different directions, further improving the secondary locking effect of the plug 100. During assembly, the locking buckle 3 is directly pressed into the mounting cavity 23 along the mounting groove 13, so that the limiting buckles 33 of the elastic arms 32 are engaged with the corresponding second protrusions 223, which is simple and convenient to operate.

[0033] In this embodiment, as Figure 2 and 3 As shown, the first housing 2 and the second housing 6 are respectively equipped with claws 8, which clamp the plug terminal 4 and the socket terminal 7. Fixing the terminals with the claws 8 helps to stabilize the connection of the terminals, ensuring that the plug 100 and the socket 200 can be reliably mated together, preventing the terminals from loosening or falling off, and improving the contact connection stability of the connector terminals.

[0034] In this embodiment, the latch 8 includes an abutment portion 81 and a plurality of latching teeth 82 connected to the abutment portion 81. The inner walls of the first housing 2 and the second housing 6 respectively abut against the outer periphery of the corresponding abutment portion 81. The abutment portion 81 has a wire-passing hole 811. The plurality of latching teeth 82 surround to form a wire-passing cavity 821. One end of the plug terminal 4 and one end of the socket terminal 7 are respectively clamped in the corresponding wire-passing cavity 821 by the latching teeth 82. The size of the wire-passing cavity 821 gradually decreases from the end closer to the abutment portion 81 to the end farther away from the abutment portion 81. Through the cooperation between the corresponding latching teeth 82, a stable limit can be formed on the plug terminal 4 and the socket terminal 7. The outer sides of both the plug terminal 4 and the socket terminal 7 are formed with stepped surfaces, and the end of the latching teeth 82 away from the abutment portion 81 also abuts against the stepped surface of the terminal. During assembly, the claws 8 can be inserted into the first housing 2 and the second housing 6 respectively. Then, the plug terminal 4 and the socket terminal 7 are pressed into the claws 8 along the wire hole 811. During the pressing process, the retaining teeth 82 will automatically give way to the terminals due to their own elasticity. When pressed into place, the tail end of the retaining teeth 82 will automatically spring back and retract, and abut against the stepped surface. In use, this effectively prevents the terminals from coming loose. In this embodiment, the claws 8 can be obtained by one-piece injection molding, which has low processing cost and is convenient and quick to assemble, without hindering the insertion of the plug terminal 4 and the socket terminal 7.

[0035] like Figure 2 , 3 As shown in Figure 6, in this embodiment, the socket 200 further includes a second end cap 5 with a second assembly cavity 51. A section of the second housing 6 is embedded in the second end cap 5. Sealing bodies 9 are respectively provided between the first end cap 1 and the corresponding claw 8, and between the second end cap 5 and the corresponding claw 8. The inner walls of the first housing 2 and the second housing 6 respectively abut and seal with the corresponding sealing bodies 9. The sealing body 9 has a sealing cavity 91 for the wire to pass through. The second end cap 5 also has a clearance opening for the wire to pass through. The second end cap 5 has a third limiting groove 52. The outer periphery of the second housing 6 has a fourth protrusion 64 corresponding to the third limiting groove 52. The second end cap 5 and the second housing 6 can achieve a stable connection through the limiting cooperation of the third limiting groove 52 and the fourth protrusion 64. In this embodiment, the sealing body 9 can be a rubber part. The sealing body 9 can achieve a good seal between the plug 100 and the socket 200, and has a good waterproof effect.

[0036] Furthermore, such as Figure 7As shown, in this embodiment, the outer periphery of the sealing body 9 and / or the wall of the sealing cavity 91 are provided with multiple spaced sealing rings 93, making the wall of the sealing cavity 91 form a wavy structure. This multi-layered rib design creates a multi-layered barrier effect during waterproofing, further improving the connector's waterproof performance. Furthermore, the design of the sealing cavity 91 allows the sealing body 9 to be adapted to various cable insulation outer diameters, improving the versatility of the sealing body 9. Figure 2 and 3 As shown, in some specific embodiments, positioning holes 92 can be opened on the sealing body 9, and positioning pins corresponding to the positioning holes 92 can be set in the first end cap 1 and the second end cap 5 respectively. After the sealing body 9 is installed into the first end cap 1 and the second end cap 5 respectively, the positioning pins can be inserted into the corresponding positioning holes 92 for positioning, thereby improving the assembly stability between the end cap and the sealing body 9.

[0037] In this embodiment, a sealing element 24 is fitted on the outer periphery of the first housing 2. The sealing element 24 can also be a rubber component. The sealing element 24 can improve the sealing stability between the first housing 2 and the second housing 6.

[0038] In this embodiment, as Figure 6 As shown, the first housing 2 includes a main housing 21 and a secondary housing 22 connected to the outside of the main housing 21. A plug terminal 4 is fixed inside the main housing 21. The main housing 21 and the secondary housing 22 together form an mounting cavity 23. A insertion cavity 61 is used for insertion into the main housing 21. The secondary housing 22 also has a limiting portion 221 extending along the insertion direction. A second limiting groove 222 is formed in the limiting portion 221. The outer periphery of the second housing 6 has a third protrusion 63 corresponding to the second limiting groove 222, which is used for fastening and fixing with the second limiting groove 222. The limiting engagement between the third protrusion 63 and the second limiting groove 33 ensures the connection stability between the first housing 2 and the second housing 6. In this embodiment, guide slopes can be provided on the outer periphery of the first protrusion 211, the third protrusion 63, and the fourth protrusion 64. The design of the guide slope makes it easier to perform the insertion operations between the first end cap 1 and the first housing 2, between the first housing 2 and the second housing 6, and between the second housing 6 and the second end cap 5.

[0039] In some more specific embodiments, a guide groove 62 adapted to the limiting part 221 can be provided on the outer periphery of the second housing 6, and a third protrusion 63 is connected to the bottom of the guide groove 62. During assembly, the limiting part 221 can slide and engage with the guide groove 62, improving the accuracy of the insertion positioning between the first housing 2 and the second housing 6. After the first housing 2 and the second housing 6 are assembled, the end of the main housing 21 away from the first end cover 1 is inserted into the insertion cavity 61 of the second housing 6. At the same time, the outer periphery of the limiting part 221 can abut and fix against the groove wall of the guide groove 62, and the third protrusion 63 on the outside of the second housing 6 is embedded in the second limiting groove 222, which fully ensures the assembly stability between the first housing 2 and the second housing 6. This embodiment designs the first housing 2 and the second housing 6 in this way, which, while ensuring good insertion stability between the two, helps to reduce the size of the connector and achieves a delicate appearance and clear lines.

[0040] In this embodiment, the first housing 2, the second housing 6, and the claws 8 can be plastic parts made of high-temperature resistant, flame-retardant polyester material. The first end cap 1 and the second end cap 5 can be made of nylon material, obtained through one-piece injection molding, resulting in low raw material and processing costs, and making the connector lighter and more environmentally adaptable. The plug terminal 4 and the socket terminal 7 can be made of high-conductivity copper material with a silver-plated surface, exhibiting excellent corrosion resistance and low contact resistance, effectively reducing terminal heat generation and ensuring stability and safety during use. The sealing body 9 can be made of high-quality silicone rubber, offering excellent heat resistance, anti-aging properties, and good protective performance.

[0041] The connector in this embodiment can be used in motor connection scenarios of equipment such as robots and new energy vehicles, and is suitable for 220V single-phase voltage, which is consistent with the household electricity (civilian electricity) standard, and has a wide range of applications.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector characterized by comprising: Includes a socket and a plug adapted to the socket; The plug includes a first end cap, a first housing, a latch, and plug terminals. The plug terminals are installed inside the first housing. The first housing includes a first end and a second end. The first end cap has a first assembly cavity adapted to the first end. The first end cap has a first limiting groove communicating with the first assembly cavity, an installation groove spaced apart from the first limiting groove, and a clearance opening for wires to pass through. The outer periphery of the first end has a first protrusion corresponding to the first limiting groove. The first end is embedded in the first assembly cavity, and the first protrusion is fixed in place with the first limiting groove. The first housing has an installation cavity corresponding to the installation groove. The latch includes a main body portion embedded in the installation groove and a plurality of elastic arms connected to the main body portion. The plurality of elastic arms are spaced apart from each other. The end of each elastic arm away from the main body portion has a limiting buckle. The limiting buckles of the plurality of elastic arms are respectively arranged in different directions. The installation cavity has a second protrusion corresponding to each limiting buckle. The second protrusion is used to insert into the installation cavity and abut against the corresponding limiting buckle. The socket includes a second housing and socket terminals installed within the second housing. The second housing also forms a insertion cavity adapted to the second end, the insertion cavity being used for insertion and engagement with the second end to achieve connection and conduction between the plug terminal and the socket terminal.

2. The connector of claim 1, wherein The latch includes two elastic arms spaced apart along a first direction, the limiting buckles of the two elastic arms facing opposite directions, and the limiting buckles of the two elastic arms distributed along a second direction perpendicular to the first direction, both the first direction and the second direction being perpendicular to the insertion direction; the first housing also has a limiting edge extending into the mounting cavity.

3. The connector of claim 2, wherein, The mounting cavity has two sub-cavities, and the main body is connected to two sets of reset components; each set of reset components includes two elastic arms that are spaced apart along a first direction and whose limiting buckles face opposite directions.

4. The connector of claim 1, wherein The first housing and the second housing are also equipped with claws, and the plug terminal and the socket terminal are respectively clamped by the claws.

5. The connector of claim 4, wherein, The latch includes an abutment portion and multiple locking teeth connected to the abutment portion. The inner wall of the first housing and the inner wall of the second housing respectively abut against the outer periphery of the corresponding abutment portion. The abutment portion has a wire-passing hole. The multiple locking teeth surround to form a wire-passing cavity. One end of the plug terminal and one end of the socket terminal are respectively clamped in the corresponding wire-passing cavity by the locking teeth. The size of the wire-passing cavity gradually decreases from the end closer to the abutment portion to the end farther away from the abutment portion.

6. The connector according to claim 5, characterized in that, The socket further includes a second end cap having a second assembly cavity. A section of the second housing is embedded in the second end cap. Sealing bodies are respectively provided between the first end cap and the corresponding claw, and between the second end cap and the corresponding claw. The inner walls of the first housing and the second housing are respectively sealed to the corresponding sealing bodies. The sealing body has a sealing cavity for the wire to pass through.

7. The connector according to claim 6, characterized in that, The outer periphery of the sealing body and / or the wall of the sealing cavity are provided with a plurality of spaced sealing rings.

8. The connector according to claim 1, characterized in that, A sealing element is fitted on the outer periphery of the first housing.

9. The connector according to claim 1, characterized in that, The first housing includes a main housing and a secondary housing connected to the outside of the main housing. The plug terminal is fixed inside the main housing. The main housing and the secondary housing together form the mounting cavity. The insertion cavity is used to insert and cooperate with the main housing. The secondary housing is also provided with a limiting part extending in the insertion direction. A second limiting groove is provided in the limiting part. A third protrusion corresponding to the second limiting groove is provided on the outer periphery of the second housing. The third protrusion is used to fasten and fix with the second limiting groove.

10. The connector according to claim 9, characterized in that, The first protrusion and / or the third protrusion are provided with guide slopes.

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