Plug-in module, charging socket and electric vehicle

Abstract

The utility model relates to the field of sockets of electric vehicles, in particular to a plug-in module, a charging socket and an electric vehicle. The charging socket is used for solving the problem that an existing charging socket is high in maintenance cost. The plug-in module comprises an insulating main body, a plug-in cavity for a charging gun to be plugged in from the front side is arranged in the insulating main body, a socket contact piece used for being plugged with a charging gun contact piece to form a power transmission loop is installed in the insulating main body, and a heating assembly is installed on the outer side of the plug-in cavity on the insulating main body. An installation annular space with a backward opening and used for installing the heating assembly is formed between the inner insulator and the cylindrical insulator of the insulating body, and the heating assembly is plugged in the installation annular space through a wire sealing cover installed at the rear end of the insulating body. The heating assembly is detachably mounted in the mounting annular space, so that when the heating assembly is damaged, the heating assembly can be independently maintained and replaced, the whole plug-in module does not need to be replaced, and the maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of sockets for electric vehicles, and particularly relates to a plug-in module, a charging socket and an electric vehicle. Background Art

[0002] With the development of new energy vehicles, the practical scenarios and regions of electric vehicles are becoming more and more extensive. When an electric vehicle is used in a cold region, if water enters the insertion gap between the charging gun and the charging socket, it will freeze after a long time at low temperature, making it difficult to pull out the gun, which greatly reduces the user experience.

[0003] Existing charging sockets usually include a plug-in module installed in a socket installation hole on the vehicle body. The plug-in module includes an insulating body with a plug-in cavity for the charging gun to insert. A socket contact for forming a power transmission loop with the charging gun is installed in the insulating body. The front end of the plug-in module extends outward with a connection flange for connecting to the vehicle body. To avoid the above-mentioned situation where the charging socket is prone to icing, a heating component for heating the insulating body is usually installed outside the plug-in cavity. In this way, the insulating body can be heated to achieve the effect of deicing. However, since the insulating body and the installation flange of the existing charging socket are integrally provided, when the heating component is damaged, the entire charging socket needs to be replaced, increasing the maintenance cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a plug-in module to solve the problem of high maintenance cost of the existing charging socket; the purpose of the utility model is also to provide a charging socket to solve the problem of high maintenance cost of the existing charging socket, and the purpose of the utility model is also to provide an electric vehicle to solve the problem of high maintenance cost of the existing charging socket.

[0005] The plug-in module of the utility model includes an insulating body with a plug-in cavity for the charging gun to insert from the front side. A socket contact for inserting and engaging with the charging gun contact to form a power transmission loop is installed in the insulating body. A heating component for heating the insulating body is installed outside the plug-in cavity on the insulating body. The insulating body includes an inner insulator and a cylindrical insulator on the radially outer side of the inner insulator. The plug-in cavity is located in the inner insulator. The front end of the cylindrical insulator is integrally connected to the front end of the inner insulator to form an installation annulus with an opening facing backward for installing the heating component between the cylindrical insulator and the inner insulator. A sealing cover installed at the rear end of the insulating body seals the heating component in the installation annulus.

[0006] Further, the heating component is a heating film wrapped around the outer surface of the inner insulator.

[0007] Further, the heating film is a C-shaped rigid heating film.

[0008] Furthermore, the heating component is connected to a socket printed circuit board within the insulating body to supply power to the heating component.

[0009] Furthermore, the heating component is connected with a power supply wire, and the rear end of the power supply wire has a connection terminal for connecting to the vehicle body power supply circuit.

[0010] Furthermore, a connection structure for detachably connecting with the connection flange of the socket is provided at the front end of the insulating body, so that the plug-in module can be separately disassembled and assembled during maintenance.

[0011] Furthermore, the connection structure is a connection ear provided on the insulating body, and the connection ear has a screw through hole for screw connection with the connection flange.

[0012] The utility model proposes an innovative technical solution. An installation annulus for installing a heating component is provided on the insulating body of the plug-in module, and the heating component is blocked within the installation annulus by a wire sealing cover at the rear end of the insulating body. The heating component is detachably installed within the installation annulus. In this way, when the heating component is damaged, the heating component can be separately repaired and replaced without replacing the entire plug-in module, saving maintenance costs.

[0013] On the other hand, the utility model also provides a charging socket, which includes a connection flange and a plug-in module detachably connected to the connection flange. The plug-in module includes an insulating body. An insertion cavity for the charging gun to be inserted from the front side is provided within the insulating body. A socket contact member for plugging with the contact member of the charging gun to form a power transmission loop is installed within the insulating body. A heating component for heating the insulating body is installed on the insulating body outside the insertion cavity. The insulating body includes an internal insulator and a cylindrical insulator on the radially outer side of the internal insulator. The insertion cavity is within the internal insulator. The front end of the cylindrical insulator is integrally connected to the front end of the internal insulator to form an installation annulus with an opening facing backward for installing the heating component between the cylindrical insulator and the internal insulator. The heating component is blocked within the installation annulus by a wire sealing cover installed at the rear end of the insulating body.

[0014] Furthermore, the heating component is a heating film coated on the outer surface of the internal insulator.

[0015] Furthermore, the heating film is a C-shaped rigid heating film.

[0016] Furthermore, the heating component is connected to a socket printed circuit board within the insulating body to supply power to the heating component.

[0017] Furthermore, the heating component is connected with a power supply wire, and the rear end of the power supply wire has a connection terminal for connecting to the vehicle body power supply circuit.

[0018] Further, a connection structure for detachably connecting with the connection flange of the socket is provided at the front end of the insulating body, so that the plug-in module can be detached and assembled separately during maintenance.

[0019] Further, the connection structure is a connection ear provided on the insulating body, and the connection ear has a screw perforation for screw connection with the connection flange.

[0020] The utility model proposes an innovative technical solution. An installation annulus for installing a heating component is provided on the insulating body of the plug-in module, and the heating component is blocked in the installation annulus by a wire sealing cover at the rear end of the insulating body. The heating component is detachably installed in the installation annulus. In this way, when the heating component is damaged, the heating component can be repaired and replaced separately without replacing the entire plug-in module, saving maintenance costs.

[0021] On the other hand, the utility model also provides an electric vehicle, including a vehicle body, on which a charging socket is installed. The charging socket includes a connection flange and a plug-in module detachably connected to the connection flange. The plug-in module includes an insulating body, inside which there is a plugging cavity for a charging gun to be inserted from the front side. Inside the insulating body, a socket contact piece for plugging with a contact piece of the charging gun to form a power transmission loop is installed. On the insulating body, outside the plugging cavity, a heating component for heating the insulating body is installed. The insulating body includes an inner insulator and a cylindrical insulator on the radially outer side of the inner insulator. The plugging cavity is inside the inner insulator. The front end of the cylindrical insulator is integrally connected to the front end of the inner insulator to form an installation annulus with an opening facing backward for installing the heating component between the cylindrical insulator and the inner insulator. A wire sealing cover installed at the rear end of the insulating body blocks the heating component in the installation annulus.

[0022] Further, the heating component is a heating film wrapped around the outer surface of the inner insulator.

[0023] Further, the heating film is a C-shaped rigid heating film.

[0024] Further, the heating component is connected to a socket printed board inside the insulating body to supply power to the heating component.

[0025] Further, the heating component is connected with a power supply wire, and the rear end of the power supply wire has a connection terminal for connecting with the vehicle body power supply circuit.

[0026] Further, a connection structure for detachably connecting with the connection flange of the socket is provided at the front end of the insulating body, so that the plug-in module can be detached and assembled separately during maintenance.

[0027] Further, the connection structure is a connection ear provided on the insulating body, and the connection ear has a screw perforation for screw connection with the connection flange.

[0028] The present utility model proposes an improved technical solution. An installation annulus for installing a heating component is provided on the insulating body of the plug-in module, and the heating component is blocked in the installation annulus by a wire-sealing cover at the rear end of the insulating body. The heating component is detachably installed in the installation annulus. In this way, when the heating component is damaged, the heating component can be repaired and replaced separately without replacing the entire plug-in module, saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a half-sectional view of a plug-in module of the present utility model;

[0030] Figure 2 is an exploded view of a charging socket of the present utility model.

[0031] In the figure: 1, insulating body; 11, internal insulator; 12, cylindrical insulator; 121, buckle; 13, installation annulus; 14, connecting ear; 2, wire-sealing cover; 21, power passing cavity; 22, signal passing cavity; 23, elastic clamping groove; 3, heating film; 4, socket printed board; 41, signal pin; 5, connecting flange; 6, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] To solve the above technical problems, the present utility model proposes a pioneering technical solution. The core concept of the present utility model is: an installation annulus for installing a heating component is provided on the insulating body of the plug-in module, and the heating component is blocked in the installation annulus by a wire-sealing cover at the rear end of the insulating body. At the same time, a connecting structure for detachably connecting with the connecting flange of the socket is provided at the front end of the insulating body so that the plug-in module can be disassembled and assembled separately during maintenance. In this way, when the heating component is damaged, the heating component can be repaired and replaced separately without replacing the entire plug-in module, saving maintenance costs.

[0033] A specific embodiment of the electric vehicle of the present utility model is as follows:

[0034] The electric vehicle includes a vehicle body. A socket mounting hole is provided on the panel of the vehicle body, and a charging socket is mounted in the socket mounting hole. The charging socket includes a connecting flange 5 for connecting with the vehicle body and a plug-in module detachably connected to the connecting flange 5. The plug-in module includes as Figure 1The shown insulating body 1 has a plugging cavity for the charging gun to be inserted from the front side. On the connecting flange 5, an avoidance opening for avoiding the insertion of the charging gun into the plugging cavity is provided at a position corresponding to the front port of the plugging cavity. After the charging gun contact passes through the avoidance opening and inserts into the plugging cavity, it is connected to the socket contact installed in the insulating body 1 to form a power transmission loop. On the insulating body 1, a heating assembly for heating the insulating body 1 is installed outside the plugging cavity. In this way, it is convenient to heat the insulating body 1 in low-temperature situations to avoid icing of the insulating body 1.

[0035] As Figure 1 shown, the insulating body 1 includes an inner insulator 11 and a cylindrical insulator 12 on the radially outer side of the inner insulator 11. The inner insulator 11 includes a bottom plate and a cylindrical side wall. The space surrounded by the cylindrical side wall and the bottom plate forms the plugging cavity. The bottom plate is provided with a mounting hole position extending forward, and a socket contact is installed in the mounting hole position. The shape of the plugging cavity and the installation arrangement of the socket contact therein are designed in accordance with the national standard and will not be described in detail. When the charging gun is inserted, the charging gun contact is connected to the socket contact to form a power transmission loop. The front end of the cylindrical insulator 12 is integrally connected to the front end of the inner insulator 11 to form an installation annulus 13 with an opening facing backward between the cylindrical insulator 12 and the inner insulator 11 for installing the heating assembly. A wire sealing cover 2 is installed at the rear end of the insulating body 1. The wire sealing cover 2 is buckled with the insulating body 1 and is sealed and installed through a sealing ring 6. The wire sealing cover 2 has a cylindrical part for sleeving on the outer periphery of the cylindrical insulator 12. An elastic clamping groove 23 is provided on the cylindrical part. A clamping buckle 121 for cooperating with the elastic clamping groove 23 is provided on the outer periphery of the cylindrical insulator 12. The installation of the wire sealing cover 2 and the insulating body 1 is realized through the cooperation of the clamping buckle 121 and the elastic clamping groove 23. After the wire sealing cover 2 and the insulating body 1 are buckled, the heating assembly is blocked in the installation annulus 13. In this way, the detachable installation of the heating assembly and the insulating body 1 is realized. After the heating assembly is damaged, the heating assembly can also be replaced separately, further reducing the maintenance cost.

[0036] As Figure 2 shown, the wire sealing cover 2 includes a cover body main body. At one end of the cover body main body facing away from the insulating body 1, a power passing cavity 21 for the corresponding power contact to pass through is installed. The corresponding power contact passes through the power passing cavity 21 on the wire sealing cover 2 and is connected to the contact in the insulating body 1. On the cover body main body, a screw through hole for the connecting screw to pass through is provided corresponding to the root of the power passing cavity 21. A corresponding screw connection hole is provided on the rear end face of the inner insulator 11. The screw passes through the screw through hole and is screwed into the screw connection hole to ensure the reliability of the connection between the wire sealing cover 2 and the plugging module.

[0037] The heating component is a C-shaped rigid heating film wrapped around the outer surface of the internal insulator 11. The heating film 3 has a simple structure, and it wraps around the internal insulator 11 in the circumferential direction, which can quickly transfer heat to the internal insulator 11 to achieve efficient de-icing of the plug-in module. At the same time, since the heating film 3 is a rigid heating film, it is also convenient for the installation and disassembly of the heating film 3, improving the replacement and maintenance efficiency.

[0038] As Figure 1 shown, the rear end of the cylindrical insulator 12 of the insulating body 1 extends backward beyond the bottom plate of the internal insulator 11. The space enclosed by the rear end of the cylindrical insulator 12 and the bottom plate is used to place the socket printed circuit board 4. The heating film 3 is directly connected to the socket printed circuit board 4 to supply power to the heating film 3. In this way, the socket printed circuit board 4 can be directly used to supply power to the heating film 3, with a simple structure, convenient installation, and also facilitating the integration of the plug-in module. One end of the socket printed circuit board 4 facing the sealing cover 2 is provided with signal pins 41. On the cover body of the sealing cover 2, there is a signal through cavity 22 extending backward for the signal pins 41 to pass through. After the signal pins 41 pass through the signal through cavity 22, they are connected to the corresponding contacts, thereby realizing the connection with the vehicle controller.

[0039] The front end of the insulating body 1 is provided with a connection structure for detachably connecting with the connection flange 5 of the socket, so that the plug-in module can be separately disassembled and assembled during maintenance. In this way, the maintenance is relatively simple, saving the maintenance cost. At the same time, the plug-in module can also be installed with connection flanges 5 of different specifications to be applicable to different models of vehicles. As shown in Figure 1, the connection structure is connection ears 14 arranged in the circumferential direction of the cylindrical insulator 12. The connection ears 14 have screw through holes for screw connection with the connection flange 5. The connection ears 14 have a simple structure and are reliably connected when connected to the connection flange 5.

[0040] The present invention also provides another implementation manner regarding the power supply circuit of the heating component. In another implementation manner, the heating component is connected with a power supply wire, and the rear end of the power supply wire has a connection terminal for connecting with the vehicle body power supply circuit. The heating component is directly connected to the vehicle body power supply circuit, which is convenient for controlling the heating circuit and also makes the power of the heating circuit unrestricted.

[0041] The present invention also provides other embodiments regarding the heating component. In another embodiment, the heating component can be a heating coil spirally extending around the installation ring space, as long as it can heat the insulating body to avoid the charging socket from icing.

[0042] The present invention also provides another implementation manner regarding the heating film. In another implementation manner, the heating film is a flexible film. During installation, the flexible heating film is directly wrapped around the outer surface of the internal insulator.

[0043] Regarding the connection structure, the present utility model also provides another embodiment. In this other embodiment, the connection structure may be an outer flange provided on an insulating body. The plug-in module is connected to the connection flange by screwing a screw through a screw perforation on the outer flange, thereby achieving the connection between the plug-in module and the connection flange.

[0044] On the other hand, the present utility model also provides a charging socket. Since the charging socket is the same as the embodiment of the charging socket described above, it will not be elaborated here.

[0045] On the other hand, the present utility model also provides a plug-in module. Since the plug-in module is the same as the embodiment of the plug-in module described above, it will not be elaborated here.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. The scope of patent protection of the present utility model is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present utility model should, by the same token, be included in the protection scope of the present utility model.

Claims

1. A plug-in module, characterized in that: It includes an insulating body (1). There is a plugging cavity in the insulating body (1) for the charging gun to be inserted from the front side. A socket contact member for plugging with the contact member of the charging gun to form a power transmission loop is installed in the insulating body (1). A heating component for heating the insulating body (1) is installed on the insulating body (1) outside the plugging cavity. The insulating body (1) includes an internal insulator (11) and a cylindrical insulator (12) on the radially outer side of the internal insulator (11). The plugging cavity is within the internal insulator (11). The front end of the cylindrical insulator (12) is integrally connected to the front end of the internal insulator (11) to form an installation annulus (13) with an opening facing backward between the cylindrical insulator (12) and the internal insulator (11) for installing the heating component. A sealing wire cover (2) installed at the rear end of the insulating body (1) seals the heating component in the installation annulus (13).

2. The plug-in module according to claim 1, wherein: The heating component is a heating film (3) covering the outer surface of the internal insulator (11).

3. The plug-in module according to claim 2, characterized in that: The heating film (3) is a C-shaped rigid heating film (3).

4. The plug-in module according to any one of claims 1 to 3, characterized in that: The heating component is connected to a socket printed circuit board (4) in the insulating body (1) to supply power to the heating component.

5. The plug-in module according to any one of claims 1 to 3, characterized in that: The heating component is connected with a power supply wire, and the rear end of the power supply wire has a connection terminal for connecting with the vehicle body power supply circuit.

6. The plug-in module according to any one of claims 1 to 3, characterized in that: A connection structure for detachably connecting with the connection flange (5) of the socket is provided at the front end of the insulating body (1) so that the plugging module can be disassembled and assembled separately during maintenance.

7. The plug-in module according to claim 6, characterized in that: The connection structure is a connection ear (14) provided on the insulating body (1). The connection ear (14) has a screw through hole for screw connection with the connection flange (5).

8. A charging socket, characterized in that: It includes a connection flange (5) and a plugging module detachably connected with the connection flange (5). The plugging module is the plugging module according to any one of claims 1-7. A relief opening for the charging gun to insert into the plugging cavity is provided at a position on the connection flange (5) corresponding to the front port of the plugging cavity.

9. An electric vehicle, comprising a vehicle body, on which a charging socket is installed, characterized in that: The charging socket includes a connection flange (5) and a plugging module detachably connected with the connection flange (5). The plugging module is the plugging module according to any one of claims 1-7. A relief opening for the charging gun to insert into the plugging cavity is provided at a position on the connection flange (5) corresponding to the front port of the plugging cavity.

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