Crimping type power connector

Abstract

The utility model provides a crimping type power supply connector. The crimping type power supply connector comprises a plug assembly and a socket assembly, the plug assembly comprises a plug shell, an interlocking structure and a plug power supply contact group; the plug assembly comprises a plug shell and a locking frame, the plug shell is connected with the locking frame in a sliding mode, and a plug power contact set is installed on one end face of the plug shell; a socket power supply contact group is arranged on the end surface of the socket shell; the socket power contact set can be in elastic contact fit with the plug power contact set, and a hook is arranged outside the socket shell. The locking of the plug assembly and the socket assembly is realized through the hooking cooperation of the interlocking structure and the hook, the crimping type contact form can be realized through the elastic contact of the socket power supply contact group and the plug power supply contact group, and the elastic deformation can make up the contact abrasion loss due to the elastic contact. The socket power supply contact set and the plug power supply contact set can be in close contact all the time, and the environmental requirement of frequent use in separation of the plug assembly and the socket assembly is met.

Description

Technical Field

[0001] The invention belongs to the field of power supply connectors, and in particular relates to a crimping power supply connector. Background Art

[0002] The power connector is a circuit connection and separation device for motors or operating machines. It is composed of a mixing car (mechanical part) and a ground (power part). The ground part is a power connector that can be operated by hand or automatically connected. It is also suitable for large machinery and metallurgical equipment with AC and DC voltages below 500 volts and currents not exceeding 130 amperes.

[0003] However, in many equipment use environments, it is necessary to connect the ground and mobile equipment, such as a socket installed on a tram and a plug installed on the ground. Therefore, frequent plugging and unplugging is necessary in this environment. The use of existing plug-in power connectors will cause the contacts to wear or deform over a long period of time, resulting in frequent poor contact problems and limited service life of plug-in power connectors. Summary of the invention

[0004] In view of this, the invention aims to provide a crimp-type power connector to solve the problem that the plug-in connector often needs to be plugged in and out in the use environment, resulting in long-term wear of the contact head and poor contact.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A crimping power connector includes a plug assembly and a socket assembly;

[0007] A plug assembly, including a plug housing, an interlocking structure, and a plug power contact group;

[0008] The plug housing is slidably connected to the locking frame, an insulating plate is provided at one end surface of the plug housing, a plug power contact group is mounted on the insulating plate, a string sleeve fixing seat is also provided on the plug housing, and the wire connected to the external power supply passes through the string sleeve fixing seat and is electrically connected to the plug power contact group;

[0009] The interlocking structure includes a locking rod and a locking hook. One end of the locking rod is fixedly connected to the locking hook. The locking hook is rotatably connected to the locking frame. The middle part of the locking rod is connected to the locking frame through a spring.

[0010] A socket assembly, including a socket housing;

[0011] An insulating plate is provided at the end surface of the socket housing, and a socket power contact group is installed on the insulating plate;

[0012] The plug power contact group or the socket power contact group is installed on the insulating plate through a connecting spring, and the socket power contact group can be elastically contacted and matched with the plug power contact group;

[0013] The side wall of the socket housing is provided with a hook which is engaged with the locking hook.

[0014] Through the sliding connection between the plug housing and the locking frame, when the plug housing is seated on the socket housing, the locking hook is hooked with the hook, at which time a thrust is given to the plug housing to move toward the socket housing, and the plug power contact group on the plug housing is in better elastic contact with the socket power contact group, and the connecting spring is compressed.

[0015] The locking hook and the locking frame are rotatably connected. Therefore, when the locking hook needs to be hooked with the hook, it is first rotated outward and then hooked to the hook, which is convenient for the hooking needs between the two. At the same time, due to the connection with the spring, the hooking and resetting needs can be met.

[0016] Furthermore, the socket power contact group includes a large socket contact and a small socket contact, the large socket contact is wrapped with a large contact insulating sheath, and the small socket contact is wrapped with a contact shielding sheath and a small contact insulating sheath.

[0017] Furthermore, a plug-in sliding sleeve is provided on the side of the socket housing, and a guide sleeve is provided on the side of the plug housing, and the guide sleeve and the plug-in sliding sleeve are slidably matched, so as to better guide the plug power contact group and the socket power contact group to contact accurately.

[0018] Furthermore, the socket assembly also includes an upper cover, which is rotatably connected to the socket shell through an upper cover connecting rod, and the free end of the upper cover connecting rod is connected to one end of a tension spring, and the other end of the tension spring is connected to the socket shell, and the upper cover can cover the socket power contact group.

[0019] Furthermore, a waterproof gasket is provided at the end face of the socket housing, the waterproof gasket wraps the socket power contact group, and the waterproof gasket is fixed to the end face of the socket housing through a waterproof gasket pressing plate.

[0020] Furthermore, the socket housing includes an upper socket housing and a lower socket housing, a terminal is arranged inside the lower socket housing, the terminal is connected to the socket power contact group, and the socket power contact group passes through the upper socket housing and is exposed outside the end surface of the socket housing;

[0021] Insulating plates are arranged in both the upper shell and the lower shell of the socket, and the socket power contact group and the terminal respectively pass through the insulating plates and extend to the outside.

[0022] Furthermore, the insulating plate is fixed to the end faces of the socket housing and the plug housing by insulating plate fixing bolts, and the outer sides of the insulating plate fixing bolts are covered with bolt isolation tubes.

[0023] Furthermore, a threaded hole is provided on the other end surface of the plug housing, and a handle is screwed into the threaded hole, and the handle passes through the locking frame and is disposed outside.

[0024] Furthermore, interlocking structures are provided on both sides of the plug housing.

[0025] Compared with the prior art, the crimp-type power connector described in the present invention has the following advantages:

[0026] (1) In the power connector of the present invention, the contact between the plug assembly and the socket assembly is of the crimping type, and the contact between the two is locked by an interlocking structure. The socket power contact group is elastically connected to the socket housing by a connecting spring. Therefore, when the plug power contact group and the socket power contact group are in contact, it is an elastic contact. Even if the contact is worn, due to the elastic deformation of the connecting spring, the socket power contact group can still reach the position where it was in contact with the plug power contact group when it was intact, thereby ensuring good contact between the two. At the same time, because the interlocking structure is used to achieve the locking of the plug assembly and the socket assembly, it can meet the requirement of achieving crimping connection without repeated wear of the contacts, which is conducive to frequent use in an environment where the plug assembly and the socket assembly are separated.

[0027] (2) The upper cover of the present invention can achieve a waterproof effect on the one hand, shielding the contacts from rainwater, and can also provide a side crimping force when the plug assembly and the socket assembly are crimped, so that the plug assembly and the socket assembly are in closer contact.

[0028] (3) Providing a handle can make the plug assembly and the socket assembly contact more closely and prevent the occurrence of locking after contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 A schematic diagram of a crimp-type power connector after crimping according to an embodiment of the present invention;

[0031] Figure 2 A front view of the plug according to an embodiment of the present invention;

[0032] Figure 3 A side view of the plug according to an embodiment of the present invention;

[0033] Figure 4 A top view of the plug according to an embodiment of the present invention;

[0034] Figure 5 A front view of a socket according to an embodiment of the present invention;

[0035] Figure 6 A side view of a socket according to an embodiment of the present invention;

[0036] Figure 7 A top view of the socket described in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038]

[0039] DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0044] like Figure 1 As shown, a crimp-type power connector includes a plug assembly 1 and a socket assembly 2.

[0045] like Figure 2-4 As shown, the plug assembly 1 includes a plug housing 11, an interlocking structure, and a plug power contact group;

[0046] The plug housing 11 is slidably connected with the locking frame 114. An insulating plate is provided at one end face of the plug housing 11, and a plug power contact group is installed on the insulating plate. A threaded hole is provided at the other end face of the plug housing 11. A handle 113 is screwed into the threaded hole. The handle 113 passes through the locking frame 114. The plug housing 11 can be slidably connected with the locking frame 114 through the handle 113. A wire set fixing seat 14 is provided on the plug housing 11. The wire connected to the external power supply passes through the wire set fixing seat 14 and is electrically connected to the plug power contact group.

[0047] The interlocking structure includes a locking rod 12 and a locking hook 111. One end of the locking rod 12 is fixedly connected to the locking hook 111. The locking hook 111 is rotatably connected to a locking frame 114. The middle of the locking rod 12 is connected to the locking frame 114 through a spring 115.

[0048] Interlocking structures are provided on both sides of the plug housing 11 .

[0049] like Figure 5-7 As shown, the socket assembly 2 includes a socket housing;

[0050] A socket power contact group matching with the plug power contact group is provided at the end surface of the socket housing;

[0051] An insulating plate is provided at the end surface of the socket housing, and a socket power contact group is installed on the insulating plate. The plug power contact group or the socket power contact group is installed on the insulating plate through a connecting spring, so that the socket power contact group can elastically contact and cooperate with the plug power contact group;

[0052] Preferably, the socket power contact group is connected to the corresponding insulating plate through a connecting spring, and the plug power contact group is fixed on the corresponding insulating plate.

[0053] The connection spring may be a C-shaped spring retaining ring; the socket power contact group or the plug power contact group is fixed on the insulating plate by a C-shaped spring retaining ring (i.e., the connection spring) and can be directly crimped with the wire.

[0054] When the socket power contact group and the plug power contact group are in elastic contact, power connection can be achieved.

[0055] The side wall of the socket housing is provided with a hook 222 which is engaged with the locking hook 111;

[0056] The socket power contact group passes through the insulating plate (26, 27, 28, 29) and is exposed outside the end surface of the socket housing;

[0057] The socket assembly also includes an upper cover 23, which is rotatably connected to the socket housing via an upper cover connecting rod 221, and the free end of the upper cover connecting rod 221 is connected to one end of a tension spring 212, and the other end of the tension spring 212 is connected to the socket housing. The upper cover 23 can cover the socket power contact group.

[0058] A waterproof gasket 216 is also provided at the end surface of the socket housing. The waterproof gasket 216 wraps the socket power contact group. The waterproof gasket 216 is fixed to the end surface of the socket housing 21 through a waterproof gasket pressing plate 215 .

[0059] The socket housing includes a socket upper housing 21 and a socket lower housing 22. A terminal 210 is arranged inside the socket lower housing 22. The terminal 210 is connected to the socket power contact group. The socket power contact group passes through the socket upper housing 21 and is exposed outside the end surface of the socket housing.

[0060] Insulating plates (26, 27, 28, 29) are provided in the socket upper shell 21 and the socket lower shell 22, and the socket power contact group and the terminal 210 respectively pass through the insulating plates and extend to the outside.

[0061] The socket upper shell 21 and the socket lower shell 22 are connected by upper and lower shell fixing bolts 218 , the upper cover connecting rod 221 is rotatably connected to the socket upper shell 21 through the rotating shaft 211 , and the tension spring 212 is connected to the socket lower shell 22 .

[0062] The socket power contact group is installed on the end surface of the socket upper shell 21.

[0063] The socket power contact group includes a large socket contact 24 and a small socket contact 25 . The large socket contact 24 is wrapped with a large contact insulating sheath 219 , and the small socket contact 25 is wrapped with a contact shielding sheath 223 .

[0064] The plug power contact group includes a large plug contact 17 and a small plug contact 18 . A large contact insulating plate 19 is installed around the large plug contact 17 , and a small contact insulating plate 110 is installed around the small plug contact 18 .

[0065] The insulating plate in the plug assembly can be mounted on the plug housing 11 by means of insulating plate fixing screws 112 or insulating plate fixing bolts.

[0066] A plug-in sliding sleeve 224 is provided on the side of the socket housing, and a guide sleeve 13 is provided on the side of the plug housing. The guide sleeve 13 is slidably matched with the plug-in sliding sleeve 224 .

[0067] The insulating plate is fixed to the end faces of the socket housing and the plug housing by insulating plate fixing bolts, and a bolt isolation tube 220 is sleeved outside the insulating plate fixing bolts.

[0068] The socket power contact group is screwed onto the terminal post 210 using screws, and the wire is crimped to the other end of the terminal post 210 .

[0069] The power supply of the plug power contact group can be introduced through the string sleeve fixing seat 14 and crimped with the plug power contact group.

[0070] The socket power contact group and the plug power contact group can use semi-conical or flat contacts.

[0071] When the plug assembly 1 and the socket assembly 2 need to be crimped, open the upper cover 23 of the socket assembly 2 by hand, hold the handle 113 and the locking hook 111, push the guide sleeve 13 and the plug-in sliding sleeve 224 together, and make the locking hook 111 hooked to the hook 222. After the hooking, turn the handle 113 to push the plug housing 11 toward the socket assembly, and the plug power contact group and the socket power contact group are elastically contacted and pressed. Since a waterproof gasket 216 is provided at the contact end surface of the plug housing 11 and the socket housing, a waterproof state can be maintained.

[0072] At this time, the upper cover 23 will abut against the outside of the plug housing 11 due to the tension spring 212 , and at the same time, due to the action of the spring 115 in the interlocking structure, the locking hook 111 and the hook 222 can be tightly hooked.

[0073] When the plug assembly 1 and the socket assembly 2 need to be separated, the handle 113 is turned to separate the socket housing 11 from the plug housing, the locking hook 111 and the hook 222 are manually released, and then the plug housing 11 is pulled to separate the plug assembly from the socket assembly.

[0074] At this time, due to the provision of the tension spring 212 and the spring 115, the locking rod 12 and the locking hook 111 in the locking structure will be reset, and the upper cover 23 will also be reset and continue to cover the socket power contact group.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A crimp-type power connector, characterized in that: Includes a plug assembly and a socket assembly; A plug assembly, including a plug housing, an interlocking structure, and a plug power contact group; The plug housing is slidably connected to the locking frame, an insulating plate is provided at one end surface of the plug housing, a plug power contact group is mounted on the insulating plate, a string sleeve fixing seat is also provided on the plug housing, and the wire connected to the external power supply passes through the string sleeve fixing seat and is electrically connected to the plug power contact group; The interlocking structure includes a locking rod and a locking hook. One end of the locking rod is fixedly connected to the locking hook. The locking hook is rotatably connected to the locking frame. The middle part of the locking rod is connected to the locking frame through a spring. A socket assembly, including a socket housing; An insulating plate is provided at the end surface of the socket housing, and a socket power contact group is installed on the insulating plate; The plug power contact group or the socket power contact group is installed on the insulating plate through a connecting spring, and the socket power contact group can be elastically contacted and matched with the plug power contact group; The side wall of the socket housing is provided with a hook which is engaged with the locking hook.

2. A crimp-type power connector according to claim 1, characterized in that: The socket power contact group comprises a large socket contact and a small socket contact. The large socket contact is wrapped with a large contact insulating sheath, and the small socket contact is wrapped with a contact shielding sheath and a small contact insulating sheath.

3. A crimp-type power connector according to claim 1, characterized in that: A plug-in sliding sleeve is arranged on the side of the socket housing, and a guide sleeve is arranged on the side of the plug housing. The guide sleeve is slidably matched with the plug-in sliding sleeve.

4. A crimp-type power connector according to claim 1, characterized in that: The socket assembly also includes an upper cover, which is rotatably connected to the socket shell through an upper cover connecting rod, and the free end of the upper cover connecting rod is connected to one end of a tension spring, and the other end of the tension spring is connected to the socket shell. The upper cover can cover the socket power contact group.

5. A crimp-type power connector according to claim 1, characterized in that: A waterproof gasket is also arranged at the end face of the socket housing, the waterproof gasket wraps the socket power contact group, and the waterproof gasket is fixed to the end face of the socket housing through a waterproof gasket pressing plate.

6. A crimp-type power connector according to claim 1, characterized in that: The socket housing comprises an upper socket housing and a lower socket housing. A terminal is arranged inside the lower socket housing. The terminal is connected to a socket power contact group. The socket power contact group passes through the upper socket housing and is exposed outside the end surface of the socket housing. Insulating plates are arranged in both the upper shell and the lower shell of the socket, and the socket power contact group and the terminal respectively pass through the insulating plates and extend to the outside.

7. A crimp-type power connector according to claim 1, characterized in that: The insulating plate is fixed to the end faces of the socket housing and the plug housing through insulating plate fixing bolts, and bolt isolation tubes are sleeved outside the insulating plate fixing bolts.

8. A crimp-type power connector according to claim 1, characterized in that: A threaded hole is provided on the other end surface of the plug housing, and a handle is screwed into the threaded hole. The handle passes through the locking frame and is externally disposed.

9. A crimp-type power connector according to claim 1, characterized in that: Interlocking structures are arranged on both sides of the plug housing.

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