CN217642761U

CN217642761U - Vehicle charging head and vehicle charging device

Info

Publication number: CN217642761U
Application number: CN202220618540.6U
Authority: CN
Inventors: 陈熙; 邓磊
Original assignee: Shenzhen Zhenghao Zhizao Technology Co ltd
Current assignee: Shenzhen Zhenghao Zhizao Technology Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-10-21
Anticipated expiration: 2032-03-21

Abstract

The application relates to the technical field of vehicle-mounted equipment, and provides a vehicle charging head and a vehicle charging device, wherein the vehicle charging head comprises a shell and a cap head assembly, and the shell is provided with a connecting end part; the cap head assembly comprises a positive pole rod, a temperature detection piece and a first elastic piece; the positive pole rod penetrates through the shell, one end of the positive pole rod extends out of the connecting end portion, the two opposite ends of the temperature detection piece are respectively connected with one end of the positive pole rod located in the shell and the first elastic piece, and the first elastic piece is limited in the shell and used for being elastically deformed when acting force of the temperature detection piece is applied. The temperature detection piece of this application embodiment's the dispersion of the first elastic component of temperature detection piece accessible and the effort that absorbs and come from the anodal pole, avoided bearing great load effect in the short time, improved the ability that the temperature detection piece bore instantaneous great impact force and high frequency time effort for the temperature detection piece has the structural reliability and the use durability of preferred when bearing the effort that comes from the anodal pole.

Description

Vehicle charging head and vehicle charging device

Technical Field

The application relates to the technical field of vehicle-mounted equipment, and particularly provides a vehicle charging head and a vehicle charging device.

Background

The car charger is commonly used for external electrical equipment of the car, such as a car charger, a car charging line, a playing device with the car charger and other devices. Therefore, the car-mounted device is an essential accessory in daily driving as an article used on the car.

When the vehicle charging device works, the vehicle charging head is inserted into a cigarette lighting port in the automobile to carry out electrifying work; the positive pole rod of the vehicle charging head can generate heat when being electrified, so that a temperature detection mechanism is required to be arranged in the vehicle charging head to the positive pole rod to detect the temperature rise of the positive pole rod; however, after the vehicle charging head is inserted into the cigarette lighting port, the acting force applied to the positive pole rod is completely concentrated on the temperature detection mechanism, so that the temperature detection mechanism is easily damaged due to overlarge stress, and the temperature detection function of the positive pole rod is disabled.

SUMMERY OF THE UTILITY MODEL

The purpose of this application embodiment is to provide a car fills head and car and fills device, can make the positive pole to the effort of temperature-detecting mechanism obtain buffering to prevent the damage of temperature-detecting mechanism, thereby improve the durability in use of temperature-detecting mechanism.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, embodiments of the present application provide a vehicle charging head, including a housing and a cap head assembly, the housing having a connection end; the cap head assembly comprises a positive pole rod, a temperature detection piece and a first elastic piece; the positive pole is worn to locate the shell, and one end stretches out in connection end portion, and the relative both ends of temperature detection spare are connected the one end and the first elastic component that the positive pole is located the shell respectively, and first elastic component is spacing in the shell to take place elastic deformation when receiving the effort of temperature detection spare.

The beneficial effects of the embodiment of the application are as follows: the utility model provides a car fills the head when using, the temperature detects the piece and can detect positive pole rod's intensification, when the positive pole rod atress removed to the temperature detects the piece, the positive pole rod supports and pushes away the temperature and detects the piece and extrude first elastic component, so that first elastic component atress compression, thereby realize the atress buffering to the temperature detects the piece, the temperature detects the piece like this and can disperse and absorb the effort that comes from the positive pole rod through first elastic component, avoided bearing great load effect in the short time, the ability that the temperature detects the piece and bear instantaneous great impact force and high frequency time effort has been improved, make the temperature detect the piece have the structural reliability and the use durability of the preferred when bearing the effort that comes from the positive pole rod.

In one embodiment, the first elastic member includes a compression portion and a connection portion connected to the compression portion, the compression portion is confined in the housing, and the connection portion is connected to the temperature detection member.

By adopting the technical scheme, the connecting part of the first elastic part is connected with the temperature detection part, and the compression part of the first elastic part is used for dispersing and absorbing the acting force applied to the temperature detection part, so that the service durability of the elastic detection part is improved.

In one embodiment, the compression portion has a first abutting end, a second abutting end and a second elastic member disposed between the first abutting end and the second abutting end, and the first abutting end is connected to the connection portion.

By adopting the technical scheme, when the temperature detection piece receives acting force from the anode rod, the temperature detection piece applies force to the first abutting end through the connecting part, so that the first elastic piece between the first abutting end and the second abutting end performs elastic energy absorption to realize buffering, and the effect of protecting the temperature detection piece is realized.

In one embodiment, the first elastic member further includes a guide portion for applying a first force to the connection portion when the connection portion moves toward the compression portion; the inner wall of shell has the butt muscle, and the butt muscle is used for applying the second effort to temperature-detecting piece, and the direction of first effort and second effort is opposite.

Through adopting foretell technical scheme, when the temperature detection piece received the power that comes from the anodal pole and supports when pushing away connecting portion, the connecting portion will move towards the compression portion and extrude the compression portion to the guide part can apply first effort for the connecting portion, so that the connecting portion applys first effort for the temperature detection piece, and the butt muscle can apply the second effort to the temperature detection piece simultaneously, so that the temperature detection piece keeps balance.

In one embodiment, one end of the guiding portion is connected to the second abutting end, and a rocker is formed at the other end of the guiding portion and faces away from the connecting portion, and the rocker abuts against the connecting portion.

Through adopting foretell technical scheme, the guide part supports with the second and holds the end and be connected, and when connecting portion moved towards the compression portion, the compression portion was extruded so that connecting portion supported the direction of holding the end towards the second and remove to the wane will exert the effort to connecting portion.

In one embodiment, the connecting part is provided with a first plugging end and a second plugging end connected with the first plugging end, and the first plugging end is connected with the first abutting end; the temperature detection piece is provided with a first inserting port and a second inserting port which are matched with the first inserting end and the second inserting end, the first inserting end is inserted into the first inserting port, and the second inserting end is inserted into the second inserting port.

By adopting the technical scheme, the temperature detection piece is connected with the first elastic piece by the connection mode of inserting the first inserting end into the first inserting port and inserting the second inserting end into the second inserting port, so that the acting force applied to the temperature detection piece can be directly transmitted to the first elastic piece.

In one embodiment, a supporting structure is formed on the inner surface of the housing, one end of the first elastic member is supported by the supporting structure, and the other end of the first elastic member is supported by the temperature detecting member.

By adopting the technical scheme, the abutting structure is arranged on the inner surface of the shell, and when the temperature detection piece moves towards the first elastic piece, the first elastic piece abuts against the abutting structure and is compressed, so that the buffer and energy absorption of acting force of the temperature detection piece are realized.

In one embodiment, the connecting end part is provided with a connecting channel, the positive pole rod is provided with an extending part, a sliding part and a rod part which are arranged in sequence, the sliding part is in sliding fit with the connecting channel, the extending part extends out of the connecting end part, and the rod part is arranged in the connecting end part and is connected with the temperature detection piece; the rod part is sleeved with a spring part, one end of the spring part abuts against the side end of the sliding part, and the other end of the spring part abuts against the temperature detection part.

Through adopting foretell technical scheme, the extension of anodal pole is used for the contact connection outside stretching out the connection end, and the sliding part slides in the linking channel, and the spring part of establishing in order to supply in the elasticity restoration of anodal pole on pole portion cover.

In one embodiment, the shell comprises a first shell, a second shell and an end shell, wherein the first shell and the second shell are enclosed to form a body shell with a convex part at one end, and the convex part is provided with a connecting channel communicated with the inside of the body shell; the end shell is provided with a through hole and is arranged on the convex part so as to ensure that the through hole is right opposite to the connecting channel.

By adopting the technical scheme, the body shell is formed by enclosing the first shell and the second shell, and the shell is formed by combining the body shell and the end shell.

In a second aspect, the embodiment of the present application further provides a vehicle charging device, which at least includes the vehicle charging head as described above.

The beneficial effects of the embodiment of the application are as follows: the vehicle charging device provided by the embodiment of the application has better structural reliability and use durability because the temperature detection piece of the vehicle charging head has better capability of bearing instantaneous larger impact force and high-frequency acting force.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vehicle charging head provided in an embodiment of the present application;

fig. 2 is a schematic view of an internal structure of a vehicle charging head according to an embodiment of the present disclosure;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is an exploded view of a vehicle charging head provided in an embodiment of the present application;

fig. 5 is a cross-sectional view of a vehicle charging head provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first elastic member according to an embodiment of the present disclosure;

fig. 7 is another schematic structural diagram of the first elastic member according to the embodiment of the present disclosure;

fig. 8 is another schematic structural diagram of the first elastic member according to the embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a temperature detection element according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

10-shell 11-body shell 12-end shell

13-abutment rib 14-abutment structure 20-cap head assembly

21-positive pole rod 22-temperature detecting member 23-first elastic member

30-spring part 100-vehicle charging head 101-connecting end part

111-first housing 112-second housing 113-projection

121-through hole 1131-connecting channel 211-extension

212-sliding part 213-rod part 221-first interface

222-second interface 231-compression part 232-connection part

233-guide 2331-rocker 2311-first butt end

2312-the second abutting end 2313-the second elastic piece 2321-the first plugging end

2322-second plug end.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1 to 8 are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

When the vehicle charging device works, the vehicle charging head is inserted into a cigarette lighting port in the automobile to be electrified; the positive pole rod of the vehicle charging head can generate heat when being electrified, so that a temperature detection mechanism is required to be arranged in the vehicle charging head to the positive pole rod to detect the temperature rise of the positive pole rod; however, after the vehicle charging head is inserted into the cigarette lighting port, the acting force applied to the positive pole rod is completely concentrated on the temperature detection mechanism, so that the temperature detection mechanism is easily damaged due to overlarge stress, and the temperature detection function of the positive pole rod is disabled.

From this, this application embodiment provides a car fills head and car and fills device, can make the car fill the head when using, and the positive pole is dispersed and is absorbed to the effort accessible of temperature detection piece, has avoided bearing great load effect in the short time, has improved the ability that temperature detection piece bore instantaneous great impact force and high frequency time effort for temperature detection piece has the structural reliability and the durability in use of the preferred when bearing the effort that comes from the positive pole.

In the present embodiment, the in-vehicle device may be an in-vehicle charger, a power supply, or the like. In one embodiment, when the vehicle charging device is used as an electricity compensator, a vehicle charging head of the electricity compensator is inserted into the cigarette lighting port to charge the vehicle battery.

Specifically, in a first aspect, the present embodiments provide a vehicle charging head 100, including a housing 10 and a cap head assembly 20, the housing 10 having a connection end 101; the cap head assembly 20 includes a positive pole rod 21, a temperature detecting member 22, and a first elastic member 23; the positive pole rod 21 penetrates through the shell 10, one end of the positive pole rod extends out of the connecting end portion 101, two opposite ends of the temperature detection piece 22 are respectively connected with one end of the positive pole rod 21 located in the shell 10 and the first elastic piece 23, and the first elastic piece 23 is limited in the shell 10 and is used for being elastically deformed when being subjected to acting force of the temperature detection piece 22.

When the vehicle charging head 100 is used, the connecting end 101 of the housing 10 is inserted into a cigarette lighter of a vehicle, so that the positive pole rod 21 protruding from the connecting end 101 is in contact with the cigarette lighter to realize electrical connection; in the process that the positive pole rod 21 is contacted with the cigarette lighter, the positive pole rod 21 is acted by an acting force to move towards the inside of the shell 10, so that the positive pole rod 21 pushes the temperature detection piece 22 to move, and the temperature detection piece 22 is extruded towards the first elastic piece 23; the acting force on the temperature detection piece 22 is absorbed by the elastic deformation of the first elastic piece 23, so that the first elastic piece 23 can buffer and absorb energy to the temperature detection piece 22, and the normal use of the temperature detection piece 22 is guaranteed.

In the present embodiment, taking the spring plate as an example, one end of the spring plate is connected to the temperature detecting element 22, and the other end of the spring plate can be abutted against the inner wall of the housing 10, or fixed in the housing 10, so that when the temperature detecting element 22 abuts against one end of the spring plate, the spring plate can be compressed and deformed. The temperature detector 22 may employ another temperature sensor such as a thermocouple for detecting the temperature change of the positive electrode rod 21 in real time.

The car that this application embodiment provided fills head 100 when using, temperature detection piece 22 can detect positive pole 21's intensification, when positive pole 21 atress moved to temperature detection piece 22, positive pole 21 supports and pushes away temperature detection piece 22 and extrudes first elastic component 23, so that first elastic component 23 atress compression, thereby realize the atress buffering to temperature detection piece 22, temperature detection piece 22 can be through the effort that first elastic component 23 dispersion and absorption come from positive pole 21 like this, avoided bearing great load effect in the short time, temperature detection piece 22 has been improved and has born the ability of instantaneous great impact force and high frequency time effort, make temperature detection piece 22 have the structural reliability and the use durability of preferred when bearing the effort that comes from positive pole 21.

Referring to fig. 1, 4 and 6, in one embodiment, the first elastic element 23 includes a compression portion 231 and a connection portion 232 connected to the compression portion 231, the compression portion 231 is limited in the housing 10, and the connection portion 232 is connected to the temperature detecting element 22. The temperature detector 22 is connected to the compression part 231 by the connection part 232, and when the temperature detector 22 moves by the action force of the positive pole rod 21, the temperature detector 22 can push the compression part 231 through the connection part 232 to realize compression, buffering and energy absorption. Wherein, the compression part 231 is a part of the first elastic element 23 with elasticity, and the compression part 231 can be elastically deformed by being stressed; the connecting portion 232 is used to connect with the temperature detecting member 22 for force transmission. Specifically, the connection portion 232 may be connected to the temperature detection member 22 in an insertion manner, and the connection portion 232 is inserted into the temperature detection member 22; alternatively, the connecting portion 232 may be engaged with the temperature detecting member 22; alternatively, the connection portion 232 may be connected to the temperature detector 22 by soldering; the specific connection mode of the connection portion 232 and the temperature detection member 22 can be selected according to actual requirements.

In an embodiment of this embodiment, the compression part 231 may be a spring plate, and the connection part 232 is inserted into the temperature detection member 22. Specifically, the connecting portion 232 includes two insertion pieces perpendicular to the compression direction of the spring piece and facing the temperature detection member 22, wherein the two insertion pieces can be connected by a connecting piece; one of the insertion pieces close to one side of the spring piece is arranged at the end part of the spring piece, for example, the insertion piece is integrally formed at the end part of the spring piece, or the end part of the spring piece protrudes towards the direction of the temperature detection piece 22 to form the insertion piece. Therefore, when the temperature detection piece 22 has a moving trend, the two inserting pieces can conduct force to the spring piece, and the energy absorption and buffering effects are achieved.

Referring to fig. 1 and fig. 6, in an embodiment, the compressing portion 231 has a first abutting end 2311, a second abutting end 2312 and a second elastic member 2313 disposed between the first abutting end 2311 and the second abutting end 2312, and the first abutting end 2311 is connected to the connecting portion 232. The second elastic piece 2313 is compressed to realize buffering and energy absorption through the action of force exerted on the second elastic piece 2313 by the first abutting end 2311 and the second abutting end 2312 at the same time; it can be understood that the compression portion 231 is limited in the housing 10, the first abutting end 2311 is connected to the connecting portion 232, the acting force of the temperature detecting element 22 is transmitted to the first abutting end 2311 through the connecting portion 232, the second abutting end 2312 is limited in the housing 10, and when the first abutting end 2311 is stressed, the second abutting end 2312 is also subjected to the reverse supporting force of the housing 10, so that the second elastic element 2313 is compressed. Specifically, the second elastic element 2313 may be a spring plate, and the first abutting end 2311 and the second abutting end 2312 are respectively located at two opposite ends of the spring plate.

Referring to fig. 5 and 7, in an embodiment, the first elastic member 23 further includes a guide portion 233, and the guide portion 233 is used for applying a first force to the connection portion 232 when the connection portion 232 moves toward the compression portion 231; the inner wall of the housing 10 has an abutting rib 13, and the abutting rib 13 is used for applying a second acting force to the temperature detection member 22, and the first acting force and the second acting force are opposite in direction. When the temperature detecting member 22 receives the force from the positive pole rod 21 and pushes against the connecting portion 232, the connecting portion 232 moves towards the compressing portion 231 and presses the compressing portion 231, so that the guiding portion 233 applies a first acting force to the connecting portion 232, the connecting portion 232 applies the first acting force to the temperature detecting member 22, and the abutting rib 13 can apply a second acting force to the temperature detecting member 22 at the same time, so that the temperature detecting member 22 is kept in balance.

Referring to fig. 2 and 8, in an embodiment, one end of the guide portion 233 is connected to the second abutting end 2312, the other end of the guide portion 233 is formed with a tilting plate 2331 facing away from the connecting portion 232, and the tilting plate 2331 abuts against the connecting portion 232. When the temperature detector 22 receives the force from the positive pole rod 21, the temperature detector 22 pushes the connecting portion 232, so that the connecting portion 232 transmits the force to the compressing portion 231 to compress the compressing portion 231, the connecting portion 232 moves toward the second abutting end 2312, the connecting portion 232 moves from the end of the rocker 2331 away from the guide portion 233 toward the end close to the guide portion 233, and the rocker 2331 applies the first force to the connecting portion 232.

In an embodiment of the present invention, the guiding portion 233 is a strip-shaped sheet structure, one end of the sheet structure is connected to the second abutting end 2312 (for example, integrally formed on the second abutting end 2312), and the other end of the sheet structure extends to one side of the connecting portion 232 and is bent back to the connecting portion 232 to form a tilting plate, so that the inclined surface of the tilting plate abuts against the connecting portion 232.

Referring to fig. 4, fig. 8 and fig. 9, in an embodiment, the connecting portion 232 has a first plugging end 2321 and a second plugging end 2322 connected to the first plugging end 2321, and the first plugging end 2321 is connected to the first abutting end 2311; the temperature detecting element 22 is provided with a first inserting port 221 and a second inserting port 222 which are matched with the first inserting end 2321 and the second inserting end 2322, the first inserting end 2321 is inserted into the first inserting port 221, and the second inserting end 2322 is inserted into the second inserting port 222. The temperature detecting element 22 is connected with the first elastic element 23 by inserting the first inserting end 2321 into the first inserting port 221 and inserting the second inserting end 2322 into the second inserting port 222, so that the acting force applied to the temperature detecting element 22 can be directly transmitted to the first elastic element 23. It can be understood that the number of the plugging ends and the number of the plugging ports can be selected according to actual requirements, for example, there may be a plurality of plugging ends such as the first plugging end 2321, the second plugging end 2322, and the third plugging end, or there is only one first plugging end 2321; in this embodiment, the structure of the two insertion ends, i.e., the first insertion end 2321 and the second insertion end 2322, is adopted, so that the temperature detection member 22 can transmit acting force to the two insertion ends at the same time, the structural strength of the connection portion 232 is improved, and the connection portion 232 is prevented from being bent and broken.

Referring to fig. 4 and 5, in an embodiment, a supporting structure 14 is formed on an inner surface of the housing 10, one end of the first elastic element 23 supports against the supporting structure 14, and the other end of the first elastic element 23 supports against the temperature detecting element 22. By providing the abutting structure 14 on the inner surface of the outer shell 10, when the temperature detecting element 22 moves towards the first elastic element 23, the first elastic element 23 abuts against the abutting structure 14 and is compressed, so that the acting force of the temperature detecting element 22 is buffered and absorbed. Specifically, the abutting structure 14 may be a bracket formed on the inner surface of the housing 10, and the first elastic member 23 abuts against the bracket; alternatively, the abutting structure 14 may be a protrusion, a fence, or the like formed on the inner surface of the housing 10, and only the first elastic member 23 is required to be able to perform abutting.

Referring to fig. 1 and fig. 4, in an embodiment, the connecting end portion 101 is provided with a connecting channel 1131, the positive pole 21 has an extending portion 211, a sliding portion 212 and a rod portion 213 sequentially arranged, the sliding portion 212 is slidably engaged with the connecting channel 1131, the extending portion 211 extends outside the connecting end portion 101, and the rod portion 213 is arranged inside the connecting end portion 101 and connected to the temperature detecting member 22; the rod 213 is sleeved with a spring element 30, one end of the spring element 30 abuts against the side end of the sliding part 212, and the other end of the spring element 30 abuts against the temperature detecting element 22. The anode rod 21 extends out of the connecting end part 101 through the extension part 211 to realize contact connection, the sliding part 212 is positioned in the connecting channel 1131 to slide, the rod part 213 is positioned in the shell 10, the rod part 213 is connected with the temperature detection part 22, and the temperature rise condition of the rod part 213 is detected in real time through the temperature detection part 22; meanwhile, the rod part 213 is sleeved with the spring member 30, and the positive pole 21 can return to the original position after each work is completed by the spring member 30. The spring member 30 may be a compression spring or other spring structure.

Referring to fig. 1, 2 and 4, in an embodiment, the housing 10 includes a first shell 111, a second shell 112 and an end shell 12, the first shell 111 and the second shell 112 enclose a body shell 11 having a protrusion 113 at one end, the protrusion 113 is provided with a connecting channel 1131 communicating with the inside of the body shell 11; the end housing 12 has a through hole 121, and the end housing 12 is disposed on the protrusion 113 such that the through hole 121 faces the connecting channel 1131. During assembly, the head assembly 20 is assembled on the first housing 111, the second housing 112 is assembled to surround the first housing 111 to form the body housing 11, such that the protruding portion 211 of the positive pole 21 protrudes out of the protrusion 113, and the end housing 12 is assembled on the protrusion 113 to form the housing 10. Specifically, an external thread structure may be disposed on the outer surface of the convex portion 113, and a matching internal thread structure may be disposed in the end portion housing 12, so that the end portion housing 12 is screwed on the convex portion 113 to achieve assembly.

Referring to fig. 1 and fig. 2, in a second aspect, an embodiment of the present application further provides a vehicle charging apparatus, which includes at least the vehicle charging head 100 as described above. The vehicle charging device provided by the embodiment of the application comprises the vehicle charging head 100, and the temperature detection piece 22 in the vehicle charging head 100 has better capability of bearing instantaneous larger impact force and high-frequency acting force, so that the vehicle charging device also has better structural reliability and use durability.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. A vehicle charging head, comprising:

a housing having a connection end;

a cap head assembly including a positive electrode bar, a temperature detection member, and a first elastic member; the positive pole rod penetrates through the shell, one end of the positive pole rod extends out of the connecting end portion, two opposite ends of the temperature detection piece are respectively connected with one end, located in the shell, of the positive pole rod and the first elastic piece, and the first elastic piece is limited in the shell and used for being elastically deformed when the acting force of the temperature detection piece is received.

2. The vehicle charging head of claim 1, wherein: the first elastic piece comprises a compression part and a connecting part connected to the compression part, the compression part is limited in the shell, and the connecting part is connected with the temperature detection piece.

3. The vehicle charging head of claim 2, wherein: the compression part is provided with a first abutting end, a second abutting end and a second elastic piece arranged between the first abutting end and the second abutting end, and the first abutting end is connected with the connecting part.

4. The vehicle charging head of claim 3, wherein: the first elastic member further includes a guide portion for applying a first acting force to the connection portion when the connection portion moves toward the compression portion; the inner wall of shell has the butt muscle, the butt muscle be used for to the temperature detect piece applys the second effort, first effort with the direction of second effort is opposite.

5. The vehicle charging head of claim 4, wherein: one end of the guide part is connected to the second abutting end, a warping plate back to the connecting part is formed at the other end of the guide part, and the warping plate abuts against the connecting part.

6. The vehicle charging head of claim 3, wherein: the connecting part is provided with a first plugging end and a second plugging end connected with the first plugging end, and the first plugging end is connected with the first abutting end; the temperature detection piece is provided with a first inserting port and a second inserting port which are matched with the first inserting end and the second inserting end, the first inserting end is inserted into the first inserting port, and the second inserting end is inserted into the second inserting port.

7. The vehicle charging head of claim 1, wherein: an abutting structure is formed on the inner surface of the shell, one end of the first elastic piece abuts against the abutting structure, and the other end of the first elastic piece abuts against the temperature detection piece.

8. The vehicle charging head according to any one of claims 1 to 7, wherein: the connecting end part is provided with a connecting channel, the anode rod is provided with an extending part, a sliding part and a rod part which are sequentially arranged, the sliding part is in sliding fit with the connecting channel, the extending part extends out of the connecting end part, and the rod part is arranged in the connecting end part and is connected with the temperature detection part; the rod part is sleeved with a spring part, one end of the spring part abuts against the side end of the sliding part, and the other end of the spring part abuts against the temperature detection part.

9. The vehicle charging head of claim 8, wherein: the shell comprises a first shell, a second shell and an end shell, the first shell and the second shell are enclosed to form a body shell with a convex part at one end, and the convex part is provided with the connecting channel communicated with the inside of the body shell; the end shell is provided with a through hole, and the end shell is arranged on the convex part so that the through hole is right opposite to the connecting channel.

10. The utility model provides a car fills device which characterized in that: the vehicle charging device at least comprises a vehicle charging head as claimed in any one of claims 1 to 9.