A new locking structure and a connector with the same

Abstract

A new locking structure and a connector with the same, comprising a plug shell, a socket shell and a locking ring which are mutually inserted at the front end, the outer wall of the socket shell is provided with a locking ring groove, the front end of the plug shell is provided with an axially extending locking buckle elastic sheet, the locking buckle elastic sheet is provided with a locking buckle boss for clamping in the locking ring groove, and the locking ring is slidably sleeved on the outside of the plug shell. When the locking buckle boss enters the locking ring groove, the locking ring is pushed in the insertion direction to a specified position, and then the locking ring achieves radial fixation of the locking structure, so that the locking buckle elastic sheet of the plug shell cannot effectively pop up when being pulled back, and the connector is locked and fixed. Therefore, the present application is convenient to operate, simple in structure and reliable in function, can realize miniaturization and light weight of the connector, and under the premise of meeting the reliability of the locking structure, the size, weight and cost of the connector are reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of connectors, and particularly relates to a novel locking structure and a connector with the same. BACKGROUND

[0002] In order to reasonably and efficiently improve energy utilization, realize peak load shifting of power grid, and rapidly expand energy storage power stations, the demand for connectors from various battery and equipment factories is increasing, and the requirements are also increasing. Therefore, connector manufacturers continuously develop novel and functional products to help the development of the industry.

[0003] At present, as the requirements for lightweight and miniaturization of parts from various battery and equipment factories are continuously improved, and the cost control of connectors is more stringent, under the premise of meeting the reliability of connector functions, reducing the weight and size of the connector and minimizing the cost will have higher requirements for the structural design of the connector. SUMMARY

[0004] To solve the technical problems of continuously improving the requirements for lightweight and miniaturization of the above-mentioned connector and more stringent cost control, the present application provides a novel locking structure and a connector with the same.

[0005] The purpose of the present application is achieved by the following technical scheme. According to the novel locking structure provided by the present application, the plug shell and the socket shell are inserted into each other at the front end, and further comprising a locking ring, the outer wall of the socket shell is provided with a locking ring groove, the front end of the plug shell is provided with an axially extending locking buckle spring, the locking buckle spring is provided with a locking buckle boss for clamping in the locking ring groove, and the locking ring is slidably sleeved on the outside of the plug shell to prevent the locking buckle boss from coming out of the locking ring groove.

[0006] Further, the outer wall of the locking buckle spring is provided with an outer circumferential boss, and correspondingly, the inner wall of the front end of the locking ring is provided with a stop groove for limiting the outer circumferential boss.

[0007] Further, the outer wall of the plug shell is provided with a ring-shaped protruding rib to prevent the locking ring from coming out of the rear end.

[0008] Further, one of the outer wall of the plug shell and the inner wall of the locking ring is provided with an axial protruding rib, and the other is provided with a through groove, and the axial protruding rib is slidably nested in the through groove.

[0009] Further, the rear end of the locking ring is provided with an axially extending cantilever, the inner wall of the cantilever is provided with a tail boss, and the plug shell is provided with a corresponding clamping groove group, each clamping groove group comprising at least two clamping grooves matching the tail boss distributed in the axial direction.

[0010] The utility model provides a connector with locking structure, including plug, socket, still include the novel locking structure of the utility model, one inside of plug shell, socket shell is provided with sheet type socket contact piece, the other inside is provided with sheet type pin contact piece, the tail of plug shell, socket shell is all equipped with cable, and the cable is connected with corresponding sheet type socket contact piece, sheet type pin contact piece.

[0011] Further, the tail of the plug shell is detachably provided with a tail cover, and the cable passes through the tail cover and is connected with the corresponding contact piece.

[0012] Further, the cable in the plug shell is sleeved with a wire sealing body.

[0013] Further, the front end of the plug shell is provided with a plug cavity, the inner wall of the rear end of the plug cavity is integrally provided with a plug face sealing ring, the front end of the contact piece in the plug shell is arranged in the insulator, the front end of the contact piece in the socket shell is arranged in the cavity of the socket shell, and the contact piece in the socket shell is plugged into the contact piece in the plug shell after the plug is plugged into the socket.

[0014] Further, the rear end of the socket shell is provided with a mounting seat, the front side wall of the mounting seat is provided with a mounting interface rubber ring, and the socket shell is screw-connected with a fastening nut.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] In the utility model, the locking buckle boss on the locking buckle elastic sheet enters the locking ring groove reserved in the socket shell, then the locking ring is pushed in the plug direction, reaches the specified position, and the locking ring realizes the radial fixation of the locking structure, so that the locking buckle elastic sheet of the plug shell cannot effectively pop up when being pulled back, the connector is locked and fixed, therefore, the utility model is convenient to operate, simple in structure, reliable in function, can realize the miniaturization and light weight of the connector, and under the premise of meeting the reliable function of the locking structure, the size, weight and cost of the connector are reduced.

[0017] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the exploded view of the plug in the embodiment of the utility model.

[0019] Figure 2This is an exploded view of the socket in an embodiment of the present invention;

[0020] Figure 3 for Figure 1 The plug shown Figure 2 The diagram shows a cross-sectional view of the socket after it has been inserted.

[0021] Figure 4 for Figure 1 3D view of the center locking ring;

[0022] Figure 5 for Figure 1 A 3D view of the plug housing.

[0023] [Attached image labels]

[0024] 1-Plug housing, 101-Locking snap spring, 10101-Locking snap boss, 10102-Outer circumferential boss, 102-Axial rib, 103-Slot I, 104-Slot II, 105-Mating surface sealing ring, 106-Circumferential rib, 107-Mating cavity, 108-Insulator, 2-Locking ring, 201-Stop groove, 202-Cantilever, 20201-Tail boss, 203-Through groove, 3-Plug cable, 4-Plate socket contact, 5-Sealing body, 6-Tail cap, 7-Socket housing, 701-Locking ring groove, 702-Mounting base, 703-Fasting stud, 704-Mating post, 705-Annular protrusion, 8-Mounting interface rubber ring, 9-Fasting nut, 10-Socket cable, 11-Plate pin contact, 12-Mounting panel. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] An embodiment of a connector with a novel locking structure, such as... Figures 1 to 5 As shown, the connector includes a plug and a socket that interlock at their front ends. Both the plug and socket contain contact elements that connect to corresponding cables. The plug includes a plug housing 1, a locking ring 2, a plug cable 3, a plate-type socket contact 4, a sealing body 5, and a tail cap 6. The socket includes a socket housing 7, a mounting interface rubber ring 8, a fastening nut 9, a socket cable 10, and a plate-type pin contact 11. The locking structure in this embodiment includes the plug housing 1, the socket housing 7, and the locking ring 2.

[0027] The plug housing 1 has a through cavity inside, and a matching locking ring 2 is axially slidably fitted on its outer side. When the plug housing 1 is inserted into the socket housing 7, the front end of the socket housing 7 is inserted into the cavity at the front end of the plug housing 1. From the rear end to the front end, the socket housing 7 is provided with a mounting base 702, a fastening stud 703, and a mating post 704, which are arranged in sequence with gradually decreasing diameters. When the plug housing 1 is inserted into the socket housing 7, the mating post 704 is inserted into the cavity of the plug housing 1. The outer wall of the mating post 704 is provided with an annular protrusion 705, the thickness of the top of the annular protrusion 705 gradually decreases, and the front and rear sides of its top form opposing slopes. A locking ring groove 701 is formed between the end face of the annular protrusion 705 and the fastening stud 703.

[0028] The front end wall of the plug housing 1 has an axially cut groove, and a locking snap spring 101 is formed between two grooves, which can reduce the axial length of the plug housing 1. In this embodiment, two symmetrical locking snap springs 101 are provided. The inner wall of the front end of the locking snap spring 101 is provided with a locking snap boss 10101. The top thickness of the locking snap boss 10101 gradually decreases, so that the front and rear side walls of the locking snap boss 10101 form opposing slopes. When the plug and socket are inserted, the front inclined surface of the locking buckle protrusion 10101 first contacts the front inclined surface of the annular protrusion 705. Under the action of the thrust, the locking buckle protrusion 10101 slides on the front inclined surface of the annular protrusion 705. When the top of the locking buckle protrusion 10101 passes the top of the annular protrusion 705, under the action of the thrust and the restoring force of the locking buckle spring 101, the locking buckle protrusion 10101 gradually slides into the locking ring groove 701. At this time, the rear inclined surface of the locking buckle protrusion 10101 slides against the rear inclined surface of the annular protrusion 705 until the locking buckle protrusion 10101 is engaged in the locking ring groove 701. When the plug is unplugged from the socket, the plug housing 1 is pulled, causing the rear inclined surface of the locking buckle protrusion 10101 to slide on the rear inclined surface of the annular protrusion 705. This applies force to the locking buckle spring 101, causing it to elastically deform until the locking buckle protrusion 10101 disengages from the locking ring groove 701. The gradually decreasing thickness at the top of the annular protrusion 705 and the locking buckle protrusion 10101 makes it easier to insert or remove the plug from the socket.

[0029] The outer wall of the front end of the locking snap spring 101 is provided with an outer circumferential boss 10102. The front side wall of the outer circumferential boss 10102 is inclined, and the rear side wall is vertical. The inner wall of the front end of the locking ring 2 is provided with a stop groove 201. The number and position of the stop groove 201 correspond to the locking snap spring 101. When the locking ring 2 slides relative to the plug housing 1, the outer circumferential boss 10102 can slide into or out of the stop groove 201. When the locking snap boss 10101 is engaged in the locking ring groove 701, the locking ring 2 is pushed forward, so that the locking snap boss 10101 enters the stop groove 201. The bottom wall of the stop groove 201 radially limits the outer circumferential boss 10102, preventing the locking snap spring 101 from elastically deforming and the locking snap boss 10101 from exiting the locking ring groove 701, thereby locking the plug and socket.

[0030] The front end of the stop groove 201 extends to the front end of the locking ring 2, and the rear end is located on the wall between the front and rear ends of the locking ring 2. When the plug and socket are not inserted, the locking clip spring 101 does not undergo elastic deformation. When the locking ring 2 can slide on the plug housing 1, if the locking ring 2 slides to the front end, the outer circumferential boss 10102 abuts against the rear end of the stop groove 201. At this time, the outer circumferential boss 10102 and the front end of the locking clip spring 101 are both located inside the locking ring 2. The locking clip spring 101 is not easily affected by external forces and avoids deformation. The outer circumferential boss 10102 is located in the stop groove 201, which can prevent the locking ring 2 from coming out of the front end of the plug housing 1.

[0031] The locking ring 2 has a cantilever 202 at its rear end. The inner wall of the rear end of the cantilever 202 has a tail boss 20201. The thickness of the tail boss 20201 gradually decreases from bottom to top in the axial direction, so that the front and rear side walls of the tail boss form opposing slopes. The outer wall of the plug housing 1 has two slots distributed in the axial direction. The two slots form a slot group. The slots match the tail boss 20201. The two slots are slot I 103 and slot II 104, where slot I 103 is located at the rear end of slot II 104. When the locking ring 2 is in the unlocked state, the tail boss 20201 is located in the slot I 103. When the locking ring 2 is needed to limit the outer circumferential boss 10102 of the plug housing 1 to lock the plug housing 1, the locking ring 2 is pushed forward. At this time, the tail boss 20201 slides out of the slot I 103 and slides forward on the outer wall of the plug housing 1. When the outer circumferential boss 10102 slides into the stop groove 201, the locking buckle boss 10101 is engaged in the locking ring groove 701, and the stop groove 201 limits the outer circumferential boss 10102, the tail boss 20201 slides into the slot II 104. In this embodiment, two cantilever arms 202 are symmetrically arranged at the rear end of the locking ring 2, and the center line of the cantilever arm 202 coincides with the center line of the corresponding locking buckle spring 101. Each cantilever 202 is provided with two slot groups. The tail boss 20201 is located in the corresponding slot when it is not locked or in a static state, to prevent the cantilever 202 from frequently tilting up and failing.

[0032] A circumferential rib 106 is provided on the plug housing 1. A locking ring 2 is located on the front side of the circumferential rib 106, and a slot is located on the rear side of the circumferential rib 106. When the locking ring 2 slides, the rear end face of the locking ring 2 can abut against the circumferential rib 106 to prevent the locking ring 2 from coming off the rear side of the plug housing 1. Since a cantilever 202 is provided at the rear end of the locking ring 2, a notch is provided on the circumferential rib 106. The size of the notch matches the cantilever 202, so that the cantilever 202 can pass through the notch on the circumferential rib 106 to the rear side, and the tail boss 20201 on the cantilever 202 can slide into the slot.

[0033] An axial rib 102 is provided on the outer wall of the front end of the plug housing 1, and the axial rib 102 is located in front of the circumferential rib 106. An axially extending through groove 203 is provided on the inner wall of the locking ring 2, and the through groove 203 penetrates the inner wall of the locking ring 2 axially. The axial rib 106 is slidably disposed in the through groove 203, so that the locking ring 2 and the plug housing 1 are limited in the circumferential direction, ensuring that the locking ring 2 and the plug housing 1 only slide relative to each other.

[0034] The outer wall of the locking ring 2 is provided with anti-slip texture, which makes it easy to push the locking ring 2 to lock the plug housing 1.

[0035] The plug housing 1 has a mating cavity 107 at its front end. When mated, the mating post 704 at the front end of the socket housing 7 is inserted into the mating cavity 107. The inner wall of the rear end of the mating cavity 107 is integrally provided with a mating surface sealing ring 105. After the socket housing 7 is inserted into the mating cavity 107, the outer wall of the front end of the socket housing 7 fits against the mating surface sealing ring 105 to achieve a seal.

[0036] A socket cable 10 is threaded and fixed inside the socket housing 7. A plate-type pin contact 11 is provided at the front end of the socket cable 10, and the plate-type pin contact 11 is fixed inside the socket housing 7. A plug cable 3 is threaded and fixed inside the plug housing 1. A plate-type socket contact 4 is provided at the end of the plug cable 3, and the plate-type socket contact 4 is fixed inside the plug housing 1. When plugged in, the plate-type pin contact 11 inserts into the plate-type socket contact 4.

[0037] An insulator 108 is disposed within the mating cavity 107. The insulator 108 is an axially extending columnar body, and the front end of the plate-type socket contact 4 is disposed within the insulator 108. A cavity is provided within the socket housing 7. After the socket and plug are mated, the insulator 108 is mated within the cavity of the socket housing 7, and the plate-type pin contact 11 within the socket housing 7 is inserted into the plate-type socket contact 4.

[0038] A tail cover 6 is provided at the rear end of the plug housing 1. The plug cable 3 passes through the tail cover 6, and the tail cover 6 is fixed to the plug housing 1 by a snap-fit ​​structure. A sealing body 5 is sleeved on the plug cable 3. The sealing body 5 is located inside the plug housing 1 and is used to seal the plug housing 1 and the plug cable 3.

[0039] A circumferential groove is formed on the front side wall of the mounting base 702 in the socket housing 7, and a mounting interface rubber ring 8 is placed in the groove. When the socket housing 7 is installed on the mounting panel 12, the socket housing 7 passes through the hole on the mounting panel 12, the mounting base 702 and the mounting interface rubber ring 8 abut against the mounting panel 12, the fastening stud 703 and the mating post 704 of the socket housing 7 are located on the other side of the mounting panel 12, and a fastening nut 9 is threaded from the other side of the mounting panel 12 to the fastening stud 703, and the fastening nut 9 is tightened on the mounting panel 12, thereby fixing the socket housing 7 on the mounting panel 12.

[0040] To achieve the miniaturization requirement of the connector, the connector socket is fixed to the mounting panel 12 of the device by a fastening nut 9, so as to reduce the complexity of product installation and improve the installation efficiency of the socket. The mating surface sealing ring 105 and the plug housing 1 are integrally molded by silicone injection process, which reduces the housing size, achieves the purpose of miniaturization and weight reduction, reduces product complexity, and avoids secondary assembly of the product, so as to simplify the product structure, reduce weight and simplify product assembly.

[0041] When the plug housing and the socket housing are inserted into place, the locking buckle protrusion 10101 of the locking buckle spring 101 enters the locking ring groove 701 reserved in the socket housing 7. Then, the locking ring 2 is axially pushed in the insertion direction. When the stop groove 201 of the locking ring 2 contacts the outer circumferential protrusion 102 of the plug housing, the locking ring 2 is axially limited. At the same time, the tail protrusion 202 of the locking ring 2 enters the slot II 104 from the slot I 103 on the surface of the plug housing 1. At this time, the locking ring 2 covers the locking buckle spring 101 to achieve radial fixation of the locking structure, so that the locking buckle spring 101 of the plug housing 1 cannot effectively pop up when pulled back, thus achieving connector locking and fixing.

[0042] In another embodiment of the present invention, the outer wall of the locking buckle spring 101 is not provided with an outer circumferential boss 10102, and the inner wall of the locking ring 2 is not provided with a stop groove 201. The locking ring 2 is pushed towards the front end, and the inner wall of the locking ring 2 restricts the deformation of the locking buckle spring 101, thereby making the locking buckle boss 101 firmly locked in the locking ring groove 701, thereby locking the socket housing 7 and the plug housing 1.

[0043] In another embodiment of the present invention, the axial rib 102 is disposed on the inner wall of the locking ring 2, and the through groove 203 is disposed on the outer wall of the plug housing 1, and the axial rib 102 is slidably nested in the through groove 203.

[0044] In another embodiment of the present invention, a plate-type pin contact 11 is provided in the plug housing 1, and a plate-type socket contact 4 is provided in the socket housing 7.

[0045] An embodiment of a novel locking structure includes a locking structure in an embodiment of a connector having a novel locking structure.

[0046] This invention has the advantages of simple structure, convenient operation and reliable function.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A locking structure, comprising a plug housing (1) and a socket housing (7) whose front ends are mutually inserted, characterized in that: It also includes a locking ring (2) that is slidably disposed on the plug housing (1), a locking ring groove (701) is provided on the socket housing (7), and an axially extending locking snap spring (101) is provided on the plug housing (1). The locking snap spring (101) is provided with a locking snap boss (10101) for locking in the locking ring groove (701). After the locking ring (2) slides to the position of the locking snap boss (10101), it can prevent the locking snap spring (101) from deforming. After the plug housing (1) and the socket housing (7) are inserted, the locking snap spring (10101) is engaged. The buckle (10101) is locked in the locking ring groove (701), and the locking ring (2) is slid to the position of the locking buckle (10101) to achieve the locking of the plug housing (1) and the socket housing (7); the rear end of the locking ring (2) is provided with an axially extending cantilever (202), and the inner wall of the cantilever (202) is provided with a tail boss (20201). The plug housing (1) is provided with a set of slots corresponding to the tail boss (20201), and each set of slots includes at least two slots that are axially distributed and match the tail boss (20201).

2. The locking structure according to claim 1, characterized in that: The outer wall of the locking buckle spring (101) is provided with an outer circumferential boss (10102), and correspondingly, the inner wall of the front end of the locking ring (2) is provided with a stop groove (201) for limiting the outer circumferential boss (10102).

3. The locking structure according to claim 1, characterized in that: The outer wall of the plug housing (1) is provided with a circumferential rib (106) to prevent the locking ring (2) from coming off from the rear end.

4. The locking structure according to claim 1, characterized in that: One of the outer wall of the plug housing (1) and the inner wall of the locking ring (2) is provided with an axial rib (102) and the other is provided with a through groove (203). The axial rib (102) is slidably nested in the through groove (203).

5. A connector with a locking structure, comprising a plug and a socket, characterized in that: It also includes the locking structure described in any one of claims 1-4, wherein one of the plug housing (1) and the socket housing (7) is provided with a plate-type socket contact (4) and the other is provided with a plate-type pin contact (11), and cables are threaded through the tail of both the plug housing (1) and the socket housing (7), and the cables are connected to the corresponding plate-type socket contact (4) and plate-type pin contact (11).

6. A connector with a locking structure according to claim 5, characterized in that: The plug housing (1) has a detachable tail cover (6) at the tail end, through which the cable passes and connects to the corresponding contact.

7. A connector with a locking structure according to claim 6, characterized in that: A sealing body (5) is fitted onto the cable inside the plug housing (1).

8. A connector with a locking structure according to claim 5, characterized in that: The plug housing (1) has a mating cavity (107) at its front end. The inner wall of the rear end of the mating cavity (107) is integrally provided with a mating surface sealing ring (105). After the socket and the plug are mated, the front end of the socket housing (7) is inserted into the mating cavity (107), and the outer wall of the front end of the socket housing (7) is in contact with the mating surface sealing ring (105). An insulator (108) is provided in the mating cavity (107). The front end of the contact in the plug housing (1) is provided in the insulator (108). The front end of the socket housing (7) has a cavity. After the socket and the plug are mated, the insulator (108) is inserted into the cavity of the socket housing (7), and the contact in the socket housing (7) is mated with the contact in the plug housing (1).

9. A connector with a locking structure according to claim 5, characterized in that: The socket housing (7) is provided with a mounting base (702) at the rear end, and a mounting interface rubber ring (8) is provided on the front side wall of the mounting base (702). A fastening nut (9) is threaded onto the socket housing (7).

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