CN218448810U

CN218448810U - Quick-change electric connector

Info

Publication number: CN218448810U
Application number: CN202222814791.4U
Authority: CN
Inventors: 杨洋; 朱安图; 刘晓冬
Original assignee: Nanjing Kangni New Energy Auto Parts Co ltd
Current assignee: Nanjing Kangni New Energy Auto Parts Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-02-03
Anticipated expiration: 2032-10-25

Abstract

The utility model discloses a quick-change electric connector, including the socket of one end with the rifle that charges is pegged graft, the other end and the plug of socket are pegged graft, the socket is equipped with five power transmission ports, thereby the socket changes as required and realizes different rated current, different rated voltage and energy transmission's demand with the specification of power socket looks adaptation. A socket is arranged between the plug end and the charging gun, the socket is provided with five power transmission ports, and the requirements of different rated currents, different rated voltages and energy transmission can be met by replacing the plug end; the five main power supplies are transmitted to ensure downward compatibility, and when the socket end adopts five power supply core pieces, the plug end adopts three core pieces, so that single-phase electric energy transmission can be realized; when the socket end adopts five power core pieces, the plug end adopts five core pieces, and the three-phase electric energy transmission can be realized. The charging plugs in different states are distinguished through different resistance values of resistors in the plugs.

Description

Quick-change electric connector

Technical Field

The utility model relates to a battery charging outfit especially relates to a be used for quick change formula electric connector.

Background

The main charging facilities of the new energy electric automobile comprise a charging pile, a charging gun, a charging socket, an in-vehicle high-voltage connector and the like, and the new energy electric automobile charging device is connected with a charging cable through the connector (the charging gun and the charging socket), so that the connector is an important part for connecting the new energy electric automobile and power supply equipment.

Current connectors include alternating current (dc) charging guns, and alternating current (dc) charging sockets. The charging interfaces of household portable electric automobile charging guns in the current market are executed according to relevant standards, one end of each charging gun is an automobile connecting end, and the interface structure is set according to the national standard of an electric automobile alternating current charging interface; the other end is a charging plug-in end which is connected with the power supply equipment through a cable.

The charging plug is usually a power plug having one end connected to the charging gun and the other end connected to a power supply socket, and the power plug has specific specification parameters such as rated current. Due to the limitation of the specification of the power plug on the portable charging device and the power socket used with the power plug, the portable charging device (the second charging mode of the electric vehicle) has the following disadvantages: (1) the maximum rated current is determined, and at most, the rated current of a product can be downward compatible by utilizing a charging circuit; (2) the number of phases of the charging grid is determined (three-phase/single-phase), i.e. the rated maximum voltage is determined; (3) there is and only one function, charging or discharging.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a can be suitable for the quick change electric connector of the demand of different rated currents, different rated voltage and charge-discharge.

The technical scheme is as follows: quick change formula electric connector, including the socket that one end and rifle electricity are connected, the other end and the plug of socket are pegged graft, the socket is equipped with five power transmission ports, the socket is changed as required for the specification with supply socket looks adaptation, realizes different rated current, different rated voltage and energy transmission's demand.

Preferably, the socket is provided with five power transmission ports, and when the plug is provided with three core pieces, single-phase electric energy transmission is realized; when the plug is five core pieces, three-phase electric energy transmission is realized.

Preferably, one end of the socket, which is matched with the plug, is provided with a containing cavity, a socket buckle is arranged in the containing cavity, and the plug is provided with a quick-change buckle slot matched with the socket buckle, so that the plug is quickly and stably connected with the socket.

Preferably, the socket is provided with a socket glue filling hole, and the terminal and the cable in the inner cavity of the socket are fixed, insulated and sealed by filling glue into the socket glue filling hole.

Preferably, the lower casing is internally provided with a sealing gasket, the power cable and the signal cable are arranged on the sealing gasket, and barbs on the power terminal and the signal terminal are in interference fit with the terminal of the lower casing.

Preferably, the socket is provided with three signal transmission interfaces.

Preferably, a plug glue filling hole is formed in the plug, and the terminal and the cable in the inner cavity of the plug are fixed, insulated and sealed through glue filling in the plug glue filling hole.

Preferably, the cable sealing device further comprises a cable sealing ring arranged on the outer shell, an outer sealing groove of the cable sealing ring is matched with a wire outlet hole of the outer shell, and the plug cable sequentially penetrates through the cable sealing ring and the locking wire pressing pipe and is fixed in the outer shell through glue filling; the plug-in sealing device is characterized in that an inner shell is arranged in the outer shell, a first sealing groove and a second sealing groove are respectively formed in two opposite surfaces of the inner shell, and an outer sealing ring and a plug-in sealing ring used for plugging the plug and the socket are respectively arranged in the first sealing groove and the second sealing groove.

Preferably, a clamping structure or a threaded connection structure is arranged between the outer shell and the inner shell.

Preferably, an exhaust hole convenient for exhausting in the process of glue pouring is formed beside the socket glue pouring hole or the plug glue pouring hole respectively.

Has the advantages that: compared with the prior art, the utility model, following beneficial effect has: 1. the method is characterized in that the conventional mode that the plug end is directly connected with the charging gun through a wire is changed into the mode that a socket is arranged between the plug end and the charging gun, the socket is provided with five power terminals, one end of the socket is inserted into the plug, and the other end of the socket is inserted into the charging gun; the requirements of different rated currents, different rated voltages and charge and discharge can be realized by replacing the plug end; 2. the five main power transmission devices ensure downward compatibility, and when the socket end adopts five power core pieces, the plug end adopts three core pieces, so that single-phase electric energy transmission can be realized. When the socket end adopts five power core pieces, the plug end adopts five core pieces, and the three-phase electric energy transmission can be realized; 3. the charging plugs in different states are distinguished through different resistance values of resistors in the plugs, and the states comprise different rated currents, different rated voltages and charging and discharging. 4. The socket of the electric connector can be compatible with the signal transmission function of the temperature sensor; 5. the method is suitable for the national standard electric automobile charging mode 2 and any other non-national standard electric automobile mode 2.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the enlarged partial structure of the present invention;

fig. 3 is a schematic view of the socket structure of the present invention;

fig. 4 is a schematic structural view of the lower housing of the socket of the present invention;

fig. 5 is a schematic view of a sealing gasket structure in the socket of the present invention;

FIG. 6 is a schematic view of the lower casing of the present invention showing a partially enlarged structure;

fig. 7 is a schematic view of the plug structure of the present invention;

fig. 8 is a schematic structural diagram of an outer shell of the plug of the present invention;

FIG. 9 is a schematic view showing a structure of the outer housing and the inner housing of the present invention;

FIG. 10 is a schematic view of a fitting structure of the outer housing and the inner housing of the present invention;

fig. 11 is a schematic view of the structure of the inner housing of the present invention.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings of the specification.

As shown in fig. 1-2, the present invention provides a quick-change electrical connector for an electric vehicle, which comprises a socket 1 and a plug 2, wherein the plug 2 and the socket 1 are inserted and error-proof through an asymmetric insertion contour.

As shown in fig. 2-6, the socket 1 includes an upper housing and a lower housing 3, the front end of the lower housing 3 is provided with a cavity 1-6, a socket fastener 1-7 is disposed in the cavity 1-6, and the plug 2 is provided with a quick-change buckle slot 2-6 that is matched with the socket fastener 1-7, so that the plug 2 and the socket 1 are connected quickly and stably. A sealing gasket 4 is arranged in a lower shell 3 of the socket 1, the sealing gasket 4 comprises a body and an outer ring rib, a cable sealing hole is formed in the body, under normal conditions, the cable sealing hole adopts a through hole for a position needing to be used, and a blind hole is adopted for the conditions of optional positions and blindness; when the blind hole needs to be used, the cable is used for directly puncturing the blind hole. The through-hole cable sealing holes Kong Dianlan are respectively matched with the outer sheaths of the cables in a sealing mode. Five power cables 5 and three signal cable 6 pass the cable seal hole respectively and install on sealed 4 of filling up, and power supply terminal 7, signal terminal 8 have been welded respectively to the front end of every power cable 5 and signal cable 6, and five power supply terminals 7 are PE respectively: 1-1, N:1-2, L1:1-3, L2:1-4, L3:1-5; when the plug is a three-core component, i.e., PE:2-1, N:2-2, L1:2-3, realizing unidirectional charging; when the plug is a five-core component, i.e., PE:2-1, N:2-2, L1:2-3, L2:2-4, L3: and 2-5, three-phase electric energy transmission is realized. The resistance value of the resistor in the plug is used for distinguishing the charging plugs in different states, so that the mode 2 has functions in different states, and the states comprise different rated currents, different rated voltages and charging and discharging. The surface matched with the outer ring ribs of the sealing gasket 4 is an outlet sealing surface 3-4, and barbs 7-1 on each power terminal 7 and each signal terminal 8 are matched with a terminal interference surface 3-2 of the lower shell 3. The lower shell 3 is provided with a socket glue filling hole 3-1, and glue is filled into an inner cavity formed by the sealing gasket 4 and the lower shell 3 through the socket glue filling hole 3-1 of the lower shell 3, so that insulation and sealing of a terminal and a cable stripping wire in the inner cavity are ensured. An exhaust hole 3-3 convenient for exhausting air during glue filling is arranged beside the socket glue filling hole 3-1.

As shown in fig. 7-11, the plug 2 includes an outer shell 9, a cable sealing ring 9-1 disposed on the outer shell 9, an outer sealing groove of the cable sealing ring 9-1 is matched with a wire outlet hole of the outer shell 9, and the plug cable 11 passes through the cable sealing ring 9-1 and is fixed in the outer shell 9 through glue pouring with a locking wire pressing pipe 12; an inner shell 10 is arranged in the outer shell 9, a first sealing groove 10-2 and a second sealing groove 10-4 are respectively arranged on two opposite surfaces of the inner shell 10, and an outer sealing ring 13 and an inserting sealing ring 14 for inserting the plug 2 and the socket 1 are respectively sleeved in the first sealing groove 10-2 and the second sealing groove 10-4 of the inner shell 10. The signal cable and the power cable in the plug are in compression joint with the signal female terminal and the power female terminal, and the front end of the plug is provided with three signal terminals 2-7 corresponding to the socket; the plug 2 is provided with a plug glue filling hole 10-1, and plug glue filling exhaust holes 2-8 convenient for air exhaust during glue filling are arranged beside the plug glue filling hole 10-1, namely beside the five power supply terminals and the three signal terminals. Two sides of the outer part of the inner shell 10 are respectively provided with a plug buckle 10-3, and the inner part of the outer shell 9 is respectively provided with a plug clamping groove (not shown in the figure) matched with the plug buckle 10-3; the outer housing 9 and the inner housing 10 may also be fixed by means of screws, as shown in fig. 10. The inner shell 10 is provided with a plug glue filling hole 10-1, and glue is filled into an inner cavity formed by the outer shell 9, the inner shell 10, the outer sealing ring 13 and the cable sealing ring 9-1 through the plug glue filling hole 10-1 of the inner shell 10 so as to ensure the insulation and the sealing of a terminal and a cable stripping wire in the inner cavity.

According to different functional requirements of products, the five power transmission and three signal transmission of the plug and the socket can be completely used or partially used.

Claims

1. The utility model provides a quick-change electric connector, its characterized in that includes socket (1) that one end and rifle electricity are connected that charges, the other end and plug (2) of socket (1) are pegged graft, socket (1) are equipped with five power transmission ports, socket (1) are changed as required for the specification with supply socket looks adaptation, realize different rated current, different rated voltage and energy transmission's demand.

2. Quick-change electrical connector according to claim 1, characterized in that the socket (1) is provided with five power transmission ports, enabling single-phase transmission of electrical energy when the plug (2) is three core pieces; when the plug (2) is provided with five core pieces, three-phase electric energy transmission is realized.

3. The quick-change electric connector according to claim 1, characterized in that the end of the socket (1) that is matched with the plug (2) is provided with a cavity (1-6), a socket buckle (1-7) is arranged in the cavity (1-6), and the plug (2) is provided with a quick-change buckle slot (2-6) that is matched with the socket buckle (1-7) so as to enable the plug (2) to be quickly and stably connected with the socket (1).

4. The quick-change electrical connector according to claim 1, wherein the socket (1) is provided with a socket glue filling hole (3-1), and the terminals and the cables in the inner cavity of the socket (1) are fixed, insulated and sealed by filling glue into the socket glue filling hole (3-1).

5. Quick-change electrical connector according to claim 1, characterized in that a sealing gasket (4) is provided in the socket (1), the power cables (5) and the signal cables (6) are mounted on the sealing gasket (4), and barbs (7-1) of the power terminals (7) and the signal terminals (8) are engaged with the terminal interference surfaces (3-2) of the lower housing (3).

6. Quick-change electrical connector according to claim 1, characterized in that three signal transmission ports (1-9) are provided in the socket (1).

7. The quick-change electric connector according to claim 1, characterized in that the plug (2) is provided with a plug glue filling hole (10-1), and the terminal and the cable in the inner cavity of the plug (2) are fixed, insulated and sealed by filling glue into the plug glue filling hole (10-1).

8. The quick-change electrical connector according to claim 1, wherein the plug (2) comprises an outer housing (9), a cable sealing ring (9-1) is arranged on the outer housing (9), an outer sealing groove of the cable sealing ring (9-1) is matched with an outlet hole of the outer housing (9), and a plug cable (11) passes through the cable sealing ring (9-1) and is fixed on the outer housing (9) through a locking line pressing pipe (12); be equipped with interior casing (10) in shell body (9), the relative two sides of interior casing (10) are equipped with first seal groove (10-2), second seal groove (10-4) respectively, be equipped with outer seal ring (13) respectively in first seal groove (10-2), the second seal groove (10-4) and be used for plug (2) and socket (1) to insert the plug sealing washer (14) that closes mutually.

9. The quick-change electrical connector according to claim 8, wherein a snap-fit structure or a threaded connection structure is provided between the outer housing (9) and the inner housing (10).

10. The quick-change electrical connector according to claim 4 or 7, wherein an air vent for facilitating air exhaust during glue filling is arranged beside the socket glue filling hole (3-1) or the plug glue filling hole (10-1).