CN221226614U - Connector for power system - Google Patents

Abstract

The utility model discloses a connector for a power system, and relates to the technical field of electric connectors; comprising the following steps: the socket assembly comprises a socket shell, the socket shell is provided with a socket hole, two clamping bulges are arranged on the inner side wall of the socket hole, and the two clamping bulges are symmetrically arranged about the axis of the socket hole; the plug assembly comprises a plug body, the side wall of the insertion end of the plug body is provided with a clamping groove, the two clamping grooves are symmetrically arranged relative to the axis of the insertion end of the plug body, and the clamping grooves are matched with the clamping protrusions; and the plug assembly is locked and connected with the socket assembly through the matching of the clamping protrusion and the clamping groove under the state that the insertion end of the plug body is inserted into the socket hole. The utility model has two insertion phases, has low requirements on the relative position accuracy of the plug and the socket, and is convenient for the connection of the electric connector and the maintenance of the circuit.

Description

Connector for power system

Technical Field

The utility model relates to the technical field of electric connectors, in particular to a connector for a power system.

Background

The electrical connector consists of a fixed end electrical connector (i.e. female contact, socket or female end for short) and a free end electrical connector (i.e. male contact, plug or male end for short). The socket is fixed on the electric component through a square (round) disc (a welding mode is adopted for each socket), the plug is generally connected with a cable, and the plug and the socket are connected through a connecting nut. Besides meeting the general performance requirements, the electric connector also needs to meet the requirements of good contact, reliable work and convenient maintenance.

In the case of electric power transmission of electric power of a train, for example, a new energy automobile, a large power connector is required. However, the conventional connectors for electric vehicles are not capable of being plugged at different phases, and the relative position accuracy of plug and socket plugging is high, resulting in inconvenient connection of the electric connectors and maintenance of the circuit.

Disclosure of utility model

Aiming at the technical problem that the existing electric connector for the trolley bus cannot be inserted in different phases; the utility model provides a connector for a power system, which is characterized in that two plug-in clamping protrusions are axially symmetrically arranged on the inner side wall of a jack of a socket shell, two plug-in clamping grooves matched with the plug-in clamping protrusions are axially symmetrically arranged on the side wall of an insertion end of a plug body, the plug assembly and the socket assembly can be butted under the condition that the plug assembly is deviated by 180 degrees, two insertion phases are provided, the requirements on the relative position precision of the plug and the socket for plugging are low, and the connection of the electrical connector and the maintenance of a circuit are facilitated.

The utility model is realized by the following technical scheme:

The utility model provides a connector for an electrical power system, comprising: the socket assembly comprises a socket shell, wherein a socket hole is formed in the socket shell, two clamping protrusions are arranged on the inner side wall of the socket hole, and the two clamping protrusions are symmetrically arranged relative to the axis of the socket hole; the plug assembly comprises a plug body, the side wall of the insertion end of the plug body is provided with a clamping groove, the two clamping grooves are symmetrically arranged relative to the axis of the insertion end of the plug body, and the clamping grooves are matched with the clamping protrusions; and the plug assembly is locked and connected with the socket assembly through the matching of the clamping protrusion and the clamping groove under the state that the insertion end of the plug body is inserted into the socket hole.

The connector for the power system comprises a socket assembly and a plug assembly, wherein a socket shell of the socket assembly is provided with a socket hole, two clamping protrusions are arranged on the inner side wall of the socket hole and symmetrically arranged relative to the axis of the socket hole, meanwhile, a clamping groove is formed in the side wall of the insertion end of a plug body of the plug assembly, the two clamping grooves are symmetrically arranged relative to the axis of the insertion end of the plug body, and the clamping grooves are matched with the clamping protrusions so as to realize locking connection of the plug assembly and the socket assembly through matching of the clamping protrusions and the clamping grooves under the condition that the insertion end of the plug body is inserted into the socket hole.

Because the inner side wall of the jack of the socket shell is axially symmetrically provided with the two plug-in clamping protrusions, the side wall of the insertion end of the plug body is axially symmetrically provided with the two plug-in clamping grooves matched with the plug-in clamping protrusions, the butt joint of the plug assembly and the socket assembly can be realized under the condition that the plug assembly deviates by 180 degrees, the plug assembly and the socket assembly have two plug-in phases, the requirements on the relative position precision of the plug and the socket for plug-in are low, and the connection of an electric connector and the maintenance of a circuit are convenient.

In an alternative embodiment, the clamping groove includes: a guide section extending from an end of the insertion end of the plug body in an axial direction of the insertion end of the plug body; the locking section is located the end of direction section, the locking section with direction section intercommunication, just the locking section is followed the circumference of the inserted end of plug body extends to ensure through the cooperation of grafting arch with the grafting groove, can realize the locking connection of plug assembly and socket assembly.

In an alternative embodiment, the guide section has a V-shaped opening, so that the plug assembly and the socket assembly can be quickly inserted into the clamping groove within a certain phase difference, and the requirements of the plug and the socket on the accuracy of the relative positions of the plug and the socket are further reduced.

In an alternative embodiment, the plug body is externally sleeved with a plug housing, and the middle part of the plug housing is sleeved with a flexible coding ring, so that corresponding color codes can be replaced according to practical requirements, and the identification of diversity of the electric connector can be realized.

In an optional embodiment, the socket housing is connected with a limit groove provided on an outer side wall of one end of the plug assembly, an elastic clamping protrusion is provided on an inner side of the plug housing, and the elastic clamping protrusion is adapted to the limit groove, so that the plug housing is limited to rotate along an axis thereof through cooperation of the elastic clamping protrusion and the limit groove, and stability of connection between the plug assembly and the socket assembly is improved.

In an alternative embodiment, the plug body is sleeved with a pressing spring, and the pressing spring is positioned in the plug shell; in the state that the plug assembly is in locking connection with the socket assembly, the jacking spring is compressed, so that the plug body is pressed by the resilience force of the jacking spring, and the plug body is prevented from loosening after being inserted into the socket assembly.

In an alternative embodiment, the inner hole of the insertion end of the plug body is provided with a conductive crown spring, and the conductive crown spring is of a watchband structure, so that the contact resistance of the contact pin in the socket assembly and the plug body is reduced, and the connection requirement of high current is met.

In an alternative embodiment, the plug body is internally fitted with a plug terminal, the plug terminal is sleeved with a first sealing ring, and the first sealing ring is used for sealing a gap between the plug terminal and the plug body so as to ensure tightness of the plug assembly end of the electric connector.

In an alternative embodiment, the receptacle assembly includes: the pin is inserted into the socket hole, and the other end of the pin extends out of the socket shell; a lock nut in threaded engagement with the pin to secure the pin to the socket housing; the conductive gasket is sleeved outside the contact pin, and is positioned between the locking nut and the socket shell, so that the contact area between the external access conductor and the contact pin is increased through the conductive gasket, the contact resistance is reduced, and the conductivity of the socket assembly is improved.

In an alternative embodiment, the pin sleeve is provided with a second sealing ring for sealing a gap between the pin and the socket housing to ensure tightness of the socket assembly end of the electrical connector.

In an alternative embodiment, the pin is located at one end of the socket housing and is screwed with two mounting nuts, and an external tooth washer is arranged between the two mounting nuts to fasten the two mounting nuts, so as to prevent the mounting nuts from being loosened.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

According to the connector for the electric power system, the socket shell of the socket assembly is provided with the socket hole, the inner side wall of the socket hole is provided with the two clamping protrusions, the two clamping protrusions are symmetrically arranged about the axis of the socket hole, meanwhile, the side wall of the insertion end of the plug body of the plug assembly is provided with the two clamping grooves, the two clamping grooves are symmetrically arranged about the axis of the insertion end of the plug body, the clamping grooves are matched with the clamping protrusions, so that the plug assembly and the socket assembly are locked and connected through the matching of the clamping protrusions and the clamping grooves in the state that the insertion end of the plug body is inserted into the socket hole, the two plugging clamping protrusions are axially symmetrically arranged about the jack, the two plugging clamping grooves are axially symmetrically arranged about the insertion end of the plug body, the plug assembly and the socket assembly can be abutted under the condition that the plug assembly deviates by 180 degrees, the requirements on the relative position accuracy of plug and socket opposite plugging are low, and the connection of the electric connector and the maintenance of a circuit are facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

In the drawings:

FIG. 1 is a schematic view of an exploded view of a connector for an electrical power system according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a plug assembly of a connector for an electric power system according to an embodiment of the present utility model;

Fig. 3 is a schematic perspective view of a receptacle assembly of a connector for an electric power system according to an embodiment of the present utility model;

Fig. 4 is a schematic cross-sectional view of a connector for an electrical power system according to an embodiment of the present utility model.

In the drawings, the reference numerals and corresponding part names:

100-socket assembly, 110-socket shell, 111-socket hole, 112-clamping protrusion, 113-limit groove, 113 a-leading-in section, 113 b-limit protrusion, 113 c-limit section, 120-contact pin, 121-electric shock prevention cap, 130-lock nut, 140-conductive gasket, 150-second seal ring, 160-mounting nut, 161-mounting gasket, 170-external tooth gasket;

200-plug assembly, 210-plug body, 211-clamping groove, 211 a-guide section, 211 b-locking section, 212-plug housing, 212 a-elastic clamping protrusion, 213-flexible coding ring, 214-plug terminal, 215-first sealing ring, 216-limit pin, 217-conductive crown spring, 220-top pressure spring, 230-terminal clamping sleeve, 240-plug tail sleeve and 250-wire tail nut.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the application, or the orientation or positional relationship conventionally understood by those skilled in the art, is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

With reference to fig. 1-3, the present embodiment provides a connector for an electrical power system, comprising: a socket assembly 100, wherein the socket assembly 100 comprises a socket housing 110, the socket housing 110 is provided with a socket hole 111, the inner side wall of the socket hole 111 is provided with two clamping protrusions 112, and the two clamping protrusions 112 are symmetrically arranged about the axis of the socket hole 111; the plug assembly 200, the plug assembly 200 includes a plug body 210, a side wall of an insertion end of the plug body 210 is provided with a clamping groove 211, two clamping grooves 211 are symmetrically arranged about an axis of the insertion end of the plug body 210, and the clamping grooves 211 are adapted to the clamping protrusions 112; wherein, in a state that the insertion end of the plug body 210 is inserted into the socket hole 111, the locking connection of the plug assembly 200 and the socket assembly 100 is achieved by the engagement of the locking protrusion 112 and the locking groove 211.

Specifically, referring to fig. 2, the clamping groove 211 includes: a guide section 211a, wherein the guide section 211a extends from the end of the insertion end of the plug body 210 along the axial direction of the insertion end of the plug body 210; a locking section 211b, the locking section 211b is located at the end of the guiding section 211a, the locking section 211b is communicated with the guiding section 211a, and the locking section 211b extends along the circumference of the insertion end of the plug body 210, so as to ensure that the plug assembly 200 and the socket assembly 100 can be locked and connected by matching the plugging protrusion with the plugging slot.

On this basis, the port section of the guide section 211a is a V-shaped opening, so that the plug assembly 200 and the socket assembly 100 can be quickly inserted into the clamping groove 211 within a certain phase difference, and the requirements of the plug and the socket on the accuracy of the relative positions of the plug and the socket are further reduced.

In this embodiment, the plug body 210 is sleeved with a plug housing 212, and a flexible coding ring 213 is sleeved in the middle of the plug housing 212, so as to change the corresponding color codes according to practical requirements, thereby realizing diversified identification of the electrical connector.

It will be appreciated that the plug body 210 is sleeved with a pressing spring 220, and the pressing spring 220 is located in the plug housing 212; in the state that the plug assembly 200 is locked to the socket assembly 100, the pressing spring 220 is compressed to press the plug body 210 by the resilient force of the pressing spring 220, so as to prevent the plug body 210 from being released after being inserted into the socket assembly 100.

Meanwhile, the inner hole of the insertion end of the plug body 210 is provided with a conductive crown spring 217, which is usually made of high-elasticity alloy copper, and the conductive crown spring 217 is in a watchband structure, so as to reduce the contact resistance of the contact pin 120 in the socket assembly 100 and the plug body 210, and meet the connection requirement of high current.

Referring to fig. 1 and fig. 4, a plug terminal 214 (for the main functional elements of plug and conduction, a well-conductive red copper material is used) is adapted to the plug end of the plug body 210, a first sealing ring 215 is sleeved outside the plug terminal 214, and the first sealing ring 215 is used for sealing a gap between the plug terminal 214 and the plug body 210, so as to ensure tightness of the plug assembly 200 end of the electrical connector.

It should be appreciated that the plug assembly 200 also includes a terminal ferrule 230 (a high thermoplastic material that can be compressed against the spring 220 to effect unlocking of the connector) for mounting the plug terminals 214 for connecting the plug wrap and the tail nut 250 of the cable. Meanwhile, a limiting pin 216 is fixed inside the plug terminal 214, and the limiting pin 216 has a guiding function during plug opposite insertion and has an electric shock preventing function.

In particular, with reference to fig. 1 and 3, the receptacle assembly 100 includes: a pin 120, wherein the pin 120 is inserted into the socket hole 111, and the other end extends to the outside of the socket housing 110; a lock nut 130, the lock nut 130 being screwed with the pin 120 to fix the pin 120 on the socket housing 110; the conductive pad 140 is sleeved outside the pin 120, and the conductive pad 140 is located between the lock nut 130 and the socket housing 110, so as to increase the contact area between the external access conductor and the pin 120, reduce the contact resistance, and improve the conductivity of the socket assembly 100 through the conductive pad 140.

Generally, the end of the pin 120 located in the socket hole 111 is adapted with an electric shock prevention cap 121 to perform a function of preventing an electric shock of a finger; a plurality of mounting screw holes are provided at the end of the socket housing 110 to ensure the stability of the installation of the socket assembly 100.

Likewise, the pin 120 is sleeved with a second sealing ring 150, and the second sealing ring 150 is used for sealing a gap between the pin 120 and the socket housing 110, so as to ensure tightness of the end of the socket assembly 100 of the electrical connector. The second seal ring 150 also can keep the contact pin 120 in a centered state, and can serve to stabilize the standby state.

It should be noted that, the pin 120 is disposed at one end of the socket housing 110 and is screwed with two mounting nuts 160, and an external tooth washer 170 is disposed between the two mounting nuts 160 to fasten the two mounting nuts 160, so as to prevent the mounting nuts 160 from being loosened.

Referring to fig. 2 and 3, the outer side wall of one end of the socket housing 110 connected to the plug assembly 200 is provided with a limit groove 113, the inner side of the plug housing 212 is provided with an elastic clamping protrusion 212a, and the elastic clamping protrusion 212a is adapted to the limit groove 113, so that the plug housing 212 is limited to rotate along the axis thereof by the cooperation of the elastic clamping protrusion 212a and the limit groove 113, thereby improving the connection stability of the plug assembly 200 and the socket assembly 100.

Specifically, the limiting grooves 113 extend along the circumferential direction of the socket hole 111, and are symmetrically arranged about the axis of the socket hole 111, and correspondingly, the elastic latching protrusions 212a are also symmetrically arranged about the circumferential direction of the plug body 210. Meanwhile, a limiting protrusion 113b is arranged in the limiting groove 113, and the limiting protrusion 113b divides the limiting groove 113 into a leading-in section 113a and a limiting section 113c along the circumferential direction of the outer side wall of the end part of the plug assembly 200, so that the elastic clamping protrusion 212a can be clamped into the limiting section 113c under the condition that the plug housing 212 rotates along the axis of the plug housing, and the plug housing 212 is limited to rotate along the axis of the plug housing.

Summarizing, the connector for a power system provided in this embodiment includes a socket assembly 100 and a plug assembly 200, a socket housing 110 of the socket assembly 100 is provided with a socket hole 111, an inner side wall of the socket hole 111 is provided with two clamping protrusions 112, and the two clamping protrusions 112 are symmetrically arranged about an axis of the socket hole 111, meanwhile, an insertion end side wall of a plug body 210 of the plug assembly 200 is provided with two clamping grooves 211, the two clamping grooves 211 are symmetrically arranged about an axis of an insertion end of the plug body 210, and the clamping grooves 211 are matched with the clamping protrusions 112, so that in a state that the insertion end of the plug body 210 is inserted into the socket hole 111, locking connection between the plug assembly 200 and the socket assembly 100 is realized through matching of the clamping protrusions 112 and the clamping grooves 211.

Because the inner side wall of the jack of the socket housing 110 is axially and symmetrically provided with two plug-in clamping protrusions, and the side wall of the insertion end of the plug body 210 is axially and symmetrically provided with two plug-in clamping grooves matched with the plug-in clamping protrusions, the butt joint of the plug assembly 200 and the socket assembly 100 can be realized under the condition that the plug assembly 200 is deviated by 180 degrees, the plug assembly has two insertion phases, the requirements on the relative position accuracy of the plug and the socket for plug-in are low, and the connection of an electric connector and the maintenance of a circuit are facilitated.

Meanwhile, the middle part of the plug housing 212 is sleeved with a flexible coding ring 213, so that corresponding color codes can be conveniently replaced according to practical requirements, and the electric connector can be marked in a diversified mode.

In addition, the plug terminal 214 is sleeved with the first sealing ring 215, the first sealing ring 215 is used for sealing a gap between the plug terminal 214 and the plug body 210, the contact pin 120 is sleeved with the second sealing ring 150, and the second sealing ring 150 is used for sealing a gap between the contact pin 120 and the socket shell 110, so that the electric connector has sufficient tightness and meets various field special environments.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A connector for an electrical power system, comprising:

The socket assembly (100), the socket assembly (100) comprises a socket shell (110), the socket shell (110) is provided with a socket hole (111), the inner side wall of the socket hole (111) is provided with two clamping protrusions (112), and the two clamping protrusions (112) are symmetrically arranged about the axis of the socket hole (111);

The plug assembly (200), the plug assembly (200) comprises a plug body (210), a clamping groove (211) is formed in the side wall of the insertion end of the plug body (210), two clamping grooves (211) are symmetrically arranged about the axis of the insertion end of the plug body (210), and the clamping grooves (211) are matched with the clamping protrusions (112);

Wherein, in a state that the insertion end of the plug body (210) is inserted into the socket hole (111), the locking connection of the plug assembly (200) and the socket assembly (100) is realized by the cooperation of the clamping protrusion (112) and the clamping groove (211).

2. The connector for an electrical power system of claim 1, wherein the clamping groove (211) comprises:

A guide section (211 a), wherein the guide section (211 a) extends from the end of the insertion end of the plug body (210) along the axial direction of the insertion end of the plug body (210);

And the locking section (211 b) is positioned at the tail end of the guide section (211 a), the locking section (211 b) is communicated with the guide section (211 a), and the locking section (211 b) extends along the circumferential direction of the insertion end of the plug body (210).

3. Connector for an electrical power system according to claim 2, characterized in that the guide section (211 a) port section is a V-shaped opening.

4. The connector for an electrical power system of claim 1, wherein the plug body (210) is externally sleeved with a plug housing (212), and wherein a flexible coding ring (213) is externally sleeved in the middle of the plug housing (212).

5. The connector for a power system according to claim 4, wherein an outer side wall of one end of the socket housing (110) to which the plug assembly (200) is connected is provided with a limit groove (113), an inner side of the plug housing (212) is provided with an elastic catching protrusion (212 a), and the elastic catching protrusion (212 a) is adapted to the limit groove (113) to restrict the socket housing (110) from rotating along its own axis by cooperation of the elastic catching protrusion (212 a) and the limit groove (113).

6. The connector for an electrical power system of claim 4, wherein the plug body (210) is sleeved with a top pressure spring (220), the top pressure spring (220) being located within the plug housing (212);

The top pressure spring (220) is compressed in a state where the plug assembly (200) is lockingly connected with the socket assembly (100).

7. Connector for electrical power systems according to claim 1, characterized in that the insertion end bore of the plug body (210) is provided with a conductive crown spring (217), the conductive crown spring (217) being of watchband construction.

8. The connector for an electrical power system according to claim 7, wherein a plug terminal (214) is fitted into the insertion end of the plug body (210), the plug terminal (214) is externally sleeved with a first sealing ring (215), and the first sealing ring (215) is used for sealing a gap between the plug terminal (214) and the plug body (210).

9. The connector for an electrical power system of any one of claims 1-8, wherein the receptacle assembly (100) comprises:

A contact pin (120), wherein the contact pin (120) is inserted into the socket hole (111), and the other end of the contact pin extends out of the socket shell (110);

A lock nut (130), the lock nut (130) being screwed with the pin (120) to fix the pin (120) on the socket housing (110);

And the conductive gasket (140) is sleeved outside the pin (120), and the conductive gasket (140) is positioned between the lock nut (130) and the socket shell (110).

10. The connector for an electrical power system of claim 9, wherein the pin (120) is sleeved with a second sealing ring (150), the second sealing ring (150) being used to seal a gap between the pin (120) and the socket housing (110).