Connecting structure of charging gun plug temperature sensor

Abstract

The utility model discloses a connection structure of a charging gun plug temperature sensor. The connection structure comprises a quick-change plug, a fixed plug, and a temperature sensing installation assembly, a jack installation assembly and a pin installation assembly which are arranged between the quick-change plug and the fixed plug. The temperature sensing installation assembly comprises a temperature fixing part and at least one temperature sensor, a wire of the temperature sensor is connected with one end of the jack installation assembly, the other end of the jack installation assembly is used for being connected with one end of the pin installation assembly, and the other end of the pin installation assembly is connected with the gun connecting wire; according to the charging gun quick-change plug with the temperature sensor, the temperature sensor and the jack mounting assembly are arranged on the temperature fixing piece and are mounted on the quick-change plug along with the temperature fixing piece, so that the temperature sensing strength is ensured, and the convenience of the charging gun quick-change plug with the temperature sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns for new energy vehicles, in particular to a connection structure of a charging gun plug temperature sensor. Background Art

[0002] When new energy vehicles are charged using a charging gun, the temperature sensor is required to detect the temperature of the power terminal in a timely and accurate manner and transmit it to the background to ensure the safety of charging operation.

[0003] However, when some charging gun plugs require quick replacement, the charging gun includes a quick-change terminal and a fixed terminal, wherein the quick-change terminal is assembled in the quick-change plug, and the fixed terminal is assembled in the charging gun.

[0004] The main installation methods of temperature sensors are:

[0005] 1. Assembled in the fixed terminal area, a large amount of test data shows that the temperature follow-up performance of the temperature sensor installed in this way is poor;

[0006] 2. Assembled in the quick-change terminal area, in order to facilitate quick replacement of the charging gun plug, the current main implementation method is to plug the temperature sensing wire plug into the fixed PCB socket inside the charging gun. This method has low efficiency during the plug quick replacement operation, and the human-computer interaction and user experience are poor. Utility Model Content

[0007] The purpose of the utility model is to provide a connection structure of a charging gun plug temperature sensor, which is a new connection structure of a charging gun plug temperature sensor and is used to solve the problem of low replacement efficiency of a charging gun plug with a temperature sensor when there is a need for quick replacement of the charging gun plug in the prior art.

[0008] The utility model solves the above problems through the following technical solutions:

[0009] A connection structure of a charging gun plug temperature sensor, comprising a quick-change plug, a fixed plug, and a temperature sensing mounting assembly, a jack mounting assembly and a pin mounting assembly arranged between the quick-change plug and the fixed plug; the temperature sensing mounting assembly comprises a temperature fixing part and at least one temperature sensor, the wire of the temperature sensor is connected to one end of the jack mounting assembly, the other end of the jack mounting assembly is used to connect to one end of the pin mounting assembly, and the other end of the pin mounting assembly is connected to a gun connecting line; and the temperature sensor and the jack mounting assembly are arranged on the temperature fixing part so as to be installed on the quick-change plug through the temperature fixing part.

[0010] As a further improvement of the present invention, the socket mounting assembly and the pin mounting assembly are respectively arranged on both sides of the temperature fixing member and plugged into the temperature fixing member.

[0011] As a further improvement of the present invention, two temperature sensors are provided.

[0012] As a further improvement of the present invention, the jack mounting assembly includes a jack mounting piece and a plurality of jacks penetrating the jack mounting piece, and the two ends of the jacks are respectively connected to the wires of the temperature sensor and the pins of the pin mounting assembly.

[0013] As a further improvement of the present invention, the pin installation assembly includes a pin installation piece and a plurality of pins, one end of the pin is installed on the pin installation piece, and the other end of the pin is covered with a sealing ring.

[0014] As a further improvement of the utility model, the jack is connected to the jack mounting piece by snapping; the pin is connected to the pin mounting piece by snapping.

[0015] As a further improvement of the present invention, the jack mounting assembly and the pin mounting assembly are plugged into each other via a jack and a pin.

[0016] As a further improvement of the utility model, the contact point between the fixed plug and the temperature sensing fixing piece, the contact point between the plug pin and the through hole of the temperature sensing fixing piece, and the end surface where the plug pin and the plug hole are plugged together are all provided with guide structures.

[0017] As a further improvement of the present invention, the sealing ring is provided with openings having the same number as the pins, and a lip for sealing with the end face of the fixed plug and in the radial direction is provided on the outer side of the sealing ring.

[0018] As a further improvement of the present invention, the jack mounting assembly is connected to the temperature sensing fixing piece by means of a snap fastener and is fixed by means of screws.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] (1) The utility model fixes the wire of the temperature sensor to the socket, assembles the socket to the socket mounting part, and installs the socket mounting part and the temperature sensing mounting assembly into the quick-change plug. The temperature sensor and the quick-change plug can be quickly replaced as a whole, thereby improving the efficiency of the charging gun plug with a temperature sensor.

[0021] (2) The plug pin of the utility model is assembled to the plug pin mounting member, and the sealing ring is installed into the plug pin and the fixed plug to achieve the end face and radial sealing of the plug pin and the fixed plug.

[0022] (3) The contact points between the fixed plug and the temperature sensing fixture, the contact points between the plug pin and the through hole of the temperature sensing fixture, and the end faces where the plug pin and the plug socket are connected are all provided with guide structures, which ensure that the connection structure can be smoothly and seamlessly installed, thereby improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded schematic diagram of a connection structure of a charging gun plug temperature sensor of the utility model;

[0024] Figure 2 It is an exploded schematic diagram of the jack mounting assembly of the utility model;

[0025] Figure 3 It is an exploded schematic diagram of the pin installation assembly of the utility model;

[0026] Figure 4 This is a cross-sectional view of the insertion of the jack and the pin of the utility model;

[0027] Figure 5 It is a schematic diagram of the position of the guide structure of the utility model.

[0028] Reference numerals:

[0029] 1. Quick-change plug; 2. Temperature sensor installation assembly; 21. Temperature sensor fixing piece; 22. Temperature sensor; 3. Jack installation assembly; 31. Jack installation piece; 31a. First card slot; 32. Jack; 32a. Jack wire fixing area; 32b. Jack-to-plug contact area; 32c. First limiting groove; 4. Pin installation assembly; 41. Sealing ring; 42. Pin; 42a. Pin wire fixing area; 42b. Pin-to-plug contact area; 42c. Second limiting groove; 43. Pin installation piece; 43a Second card slot; 5. Fixed plug; 61. Primary guide structure; 62. Secondary guide structure; 63. Tertiary guide structure. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] Combined with Figure 1-5As shown, a connection structure of a charging gun plug temperature sensor mainly includes five parts: a quick-change plug 1, a temperature sensing installation component 2, a socket installation component 3, a pin installation component 4 and a fixed plug 5. Among them, the temperature sensing installation component 2 includes a temperature fixing part 21 and two temperature sensors 22, and the two temperature sensors are installed on the temperature fixing part 21; the jack installation component 3 includes a jack installation part 31 and four jacks 32, the jack installation part 31 is installed in the temperature fixing part 21 of the temperature sensing installation component 2 and contacts with the wire of the temperature sensor, and the four jacks are installed on the jack installation part 31 and plugged with the pins of the pin installation component 4; the pin installation component 4 includes four pins 42, a sealing ring 41 and a pin installation part 43, one end of the four pins 42 is installed on the pin installation part 43, and the other end is covered with a sealing ring 41; during operation, by fixing the wire of the temperature sensor to the jack and assembling the jack to the jack installation part, and then installing the jack installation part and the temperature sensing installation component into the quick-change plug, the temperature sensor and the quick-change plug as a whole can be quickly replaced, thereby improving the efficiency of the charging gun plug with a temperature sensor. By fixing the gun wire to the pin, assembling the pin to the pin mounting part, installing the sealing ring into the pin and achieving end face and radial sealing with the fixed plug, the pin and the socket are electrically connected by plugging together.

[0033] Specifically, the socket mounting assembly 3 and the pin mounting assembly 4 are respectively disposed on both sides of the temperature fixing member 21 , and are plugged into the temperature fixing member 21 .

[0034] The jack 32 is set through the jack mounting part 31. The jack 32 is formed with a jack wire fixing area 32a and a jack plug-in contact area 32b. The jack wire fixing area 32a is connected to the wire of the temperature sensor, and the jack plug-in contact area 32b is plugged with the pin plug-in contact area 42b. The jack 32 is provided with a first limiting groove 32c, and is assembled into the first card slot 31a of the jack mounting part 31 through the first limiting groove. The first card slot reserves a gap as a tolerance for pinhole installation plug-in. Characters are engraved on the surface near the first card slot of the jack mounting part 31 so that the jack 32 can be installed in the corresponding position to improve the assembly accuracy. The end face of the jack 32 is designed with rounded corners or chamfers as a guide for plug-in. The jack material and surface treatment are not limited, and existing general materials can be used.

[0035] The plug pin 42 is formed with a plug pin wire fixing area 42a and a plug pin contact area 42b. The plug pin wire fixing area 42a is connected to the connection line. The plug pin 42 is provided with a second limit groove 42c. The plug pin is assembled into the second card groove 43a of the plug pin mounting member 43 through the second limit groove. The second card groove reserves a gap as the tolerance for the pin hole installation. Characters are engraved on the surface near the second card groove of the plug pin mounting member 43, so that the plug pin 42 can be installed in the corresponding position to improve the assembly accuracy. The end face of the plug pin 42 is designed with rounded corners or chamfers as a guide for insertion. The plug pin material and surface treatment are not limited, and existing general materials can be used. The sealing ring 41 is provided with openings consistent with the number of plug pins. In this embodiment, there are four openings inside the sealing ring 41 to allow 4 PCS plug pins to be installed, which plays a waterproof and sealing role. The plug pin mounting member of the pin mounting assembly 4 is installed to the fixed plug 5 with screws, and the plug pin mounting member 43 is designed with error-proofing features. A lip is designed on the outside of the sealing ring 41 to seal with the end face and radial direction of the fixed plug 5, ensuring that the protection level of the entire charging gun reaches IP67 except for the quick-change plug.

[0036] Preferably, the contact point between the fixed plug and the temperature sensing fixture 21, the contact point between the plug pin and the through hole of the temperature sensing fixture 21, and the end face where the plug pin 42 is plugged into the socket 32 ​​are all provided with guide structures, including a primary guide structure 61, a secondary guide structure 62, and a tertiary guide structure 63. Among them, the fixed plug 5 first contacts the outer shape of the shell of the temperature sensing fixture 21, and the contact points are designed with slopes and chamfers, which is the primary guide structure 61 for plugging in; then the plug pin 42 contacts the through hole of the temperature sensing fixture 21, and the through hole is designed as a horn hole structure, which is the secondary guide structure 62; finally, the plug pin 42 contacts the socket 32, and the end faces are designed with rounded corners or chamfers as a guide for plugging in, which is the tertiary guide structure 63, completing a smooth and seamless plug-in installation.

[0037] In this embodiment, the jack mounting assembly 3 is connected to the temperature sensing fixture 21 of the temperature sensing mounting assembly 2 by snap-fitting and fixed by screws; the temperature sensing fixture 21 is provided with a cylindrical tunnel for installing the temperature sensor 22, and the temperature sensor 22 is installed in the cylindrical tunnel of the temperature sensing fixture 21, and the tail wire of the temperature sensor 22 is in contact with the jack wire fixing area 32a; preferably, the temperature sensing fixture 21 reserves a wiring channel to facilitate the wiring of the temperature sensing sensor and avoid wire crimping. The temperature mounting assembly 2 with the jack mounting assembly is fixed to the quick-change plug 1 by screws so that the temperature sensor is assembled to the quick-change plug side. The temperature sensor and the quick-change plug can be replaced at the same time to realize the quick-change operation of the charging gun plug. The pin and the jack can be seamlessly and reliably plugged in to improve the user experience.

[0038] The jack and the pin of the utility model are both provided with limit slots, which are respectively connected to the jack mounting part or the pin mounting part through the gap to ensure the tolerance during the installation. The fixing methods of the jack and the temperature sensor wire, and the pin and the connecting wire include but are not limited to crimping, welding, etc. The structural methods of the jack-to-plug contact area include but are not limited to: crown spring, split groove, ring spring, rotating spring, etc. The fixed plug and the temperature sensing fixture are designed with inclinations and chamfers, the through hole of the temperature sensing fixture is a horn hole, and the non-plugging end faces of the pin and the jack are designed with fillets or chamfers, which realizes the smoothness of the installation of the connection structure of the charging gun plug temperature sensor, thereby improving the convenience of installation.

[0039] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A connection structure of a charging gun plug temperature sensor, characterized in that: It includes a quick-change plug, a fixed plug, and a temperature sensing mounting assembly, a jack mounting assembly, and a pin mounting assembly arranged between the quick-change plug and the fixed plug; The temperature sensing installation assembly includes a temperature fixing part and at least one temperature sensor, the wire of the temperature sensor is connected to one end of the jack installation assembly, the other end of the jack installation assembly is used to connect to one end of the pin installation assembly, and the other end of the pin installation assembly is connected to the gun connection line; and the temperature sensor and the jack installation assembly are arranged on the temperature fixing part so as to be installed on the quick-change plug through the temperature fixing part.

2. According to claim 1, a connection structure of a charging gun plug temperature sensor is characterized in that: The socket installation component and the pin installation component are respectively arranged on both sides of the temperature fixing component and plugged into each other in the temperature fixing component.

3. According to claim 1, a connection structure of a charging gun plug temperature sensor is characterized in that: The number of the temperature sensors is two.

4. According to claim 2, a connection structure of a charging gun plug temperature sensor is characterized in that: The jack installation assembly comprises a jack installation part and a plurality of jacks penetrating the jack installation part, and the two ends of the jacks are respectively connected with the wires of the temperature sensor and the pins of the pin installation assembly.

5. The connection structure of the charging gun plug temperature sensor according to claim 4, characterized in that: The pin installation assembly comprises a pin installation part and a plurality of pins. One end of the pin is installed on the pin installation part, and the other end of the pin is covered with a sealing ring.

6. According to claim 5, a connection structure of a charging gun plug temperature sensor is characterized in that The jack is connected to the jack mounting piece by snap-fitting; the pin is connected to the pin mounting piece by snap-fitting.

7. The connection structure of the charging gun plug temperature sensor according to claim 5, characterized in that: The socket installation component and the pin installation component are plugged into each other through the socket and the pin.

8. The connection structure of the charging gun plug temperature sensor according to claim 7, characterized in that: The contact point between the fixed plug and the temperature sensing fixing piece, the contact point between the plug pin and the through hole of the temperature sensing fixing piece, and the end surface where the plug pin and the plug hole are plugged are all provided with a guiding structure.

9. The connection structure of the charging gun plug temperature sensor according to claim 5, characterized in that: The sealing ring is provided with openings having the same number as the pins, and a lip for sealing with the end face of the fixed plug and in the radial direction is provided on the outer side of the sealing ring.

10. The connection structure of the charging gun plug temperature sensor according to claim 1, characterized in that: The jack mounting assembly is connected to the temperature sensing fixing piece via a buckle and fixed via screws.

Images