CN219393772U

CN219393772U - Connecting terminal of charging seat

Info

Publication number: CN219393772U
Application number: CN202320393860.0U
Authority: CN
Inventors: 刘仰航; 雷波; 彭建华
Original assignee: Zhejiang Lida Electric Appliance Co ltd
Current assignee: Zhejiang Lida Electric Appliance Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-21
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a connecting terminal of a charging seat, relates to the technical field of charging seats of new energy automobiles, and solves the problems of small elastic deformation range of an elastic arm and the like. The elastic arm is connected to the base, a connecting table is convexly arranged on the top surface of the base, the inner side of the bottom of the elastic arm is integrally connected with the connecting table, and a ring groove is formed between the elastic arm and the base. The connecting position of the elastic arm and the base is changed, stress is concentrated at the peripheral position of the connecting table after elastic deformation occurs, so that the elastic arm can keep elastic tight contact with the butt-joint contact pin, the annular groove provides a space for the elastic arm to deform, the elastic arm can deform elastically in a sufficient radial range, the elastic deformation capacity of the elastic arm is improved, the elastic arm is prevented from yielding deformation, and the service life of the terminal is prolonged.

Description

Connecting terminal of charging seat

Technical Field

The utility model relates to the technical field of charging seats of new energy automobiles, in particular to a connecting terminal of a charging seat.

Background

With the increasing maturity of new energy automobile technology, new energy automobiles have been gradually accepted by markets, and therefore, charging piles specially used for charging new energy automobiles are also used more frequently. When the new energy automobile charges through the charging pile, a charging head electrically connected with the charging pile is mutually inserted with a charging seat on the new energy automobile, and a connecting terminal of the charging seat is very important as a core piece for current transmission. The prior art discloses Chinese utility model patent: the connecting terminal (publication number: CN 206313170U) comprises a terminal body and a contact part, wherein the contact part extends from one end of the terminal body along the axial direction of the connecting terminal, the contact part is provided with a contact wall, the contact wall encloses a containing cavity and can accommodate a mating terminal inserted from the free end of the contact part, and a radial penetrating through hole is formed in the contact wall and is communicated with the containing cavity. The contact part (also called as an elastic arm) can elastically deform to a certain extent so as to support the compression degree of the contact part and the pin of the charging head to be butted, and the connecting terminal can be matched with the matched terminal in a matched manner, so that the electric transmission performance is strong. However, since the elastic arm is integrally connected with the terminal body along the cylindrical structure, the range of elastic deformation of the elastic arm is very small, and when the elastic arm is stressed and inclined, the elastic arm can excessively deform outwards in the radial direction and yield, so that the elastic failure is caused, and the use of the charging seat is seriously affected. In addition, when the connection terminals are in butt joint, the temperature is usually high due to the high voltage environment, so that the internal circuit is easy to age and short, and safety accidents occur.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides a connecting terminal of a charging seat, which solves the problems of small elastic deformation range of an elastic arm and the like.

The technical scheme of the utility model is as follows: the elastic arm is connected to the base, a connecting table is convexly arranged on the top surface of the base, the inner side of the bottom of the elastic arm is integrally connected with the connecting table, and a ring groove is formed between the elastic arm and the base.

By adopting the technical scheme, the connection position of the elastic arm and the base is changed, after elastic deformation, stress is concentrated at the peripheral position of the connection table, so that the elastic arm can keep elastic close contact with the butt-joint contact pin, the annular groove provides a space for the elastic arm to deform, the elastic arm can deform elastically in a sufficient radial range, the elastic deformation capacity of the elastic arm is improved, the elastic arm is prevented from yielding deformation, and the service life of the terminal is prolonged.

The utility model is further provided with: the bottom of the ring groove forms an arc transition structure.

By adopting the further arrangement, the arc transition can reduce the excessive stress concentration, improve the stability of the elastic arm structure and facilitate the processing operation.

Still further, the present utility model provides: the elastic arms are provided with elastic lantern rings, and the elastic lantern rings are sleeved on the outer surfaces of the elastic arms.

By adopting the further arrangement, the rebound capability of the elastic arm is stronger, so that the elastic arm can effectively return after elastic deformation, and the elastic arm is in closer contact with the butt joint position inside the elastic arm, thereby improving the current carrying capability of the charging seat and achieving the effect of reducing the contact resistance.

Still further, the present utility model is provided with: the base is also connected with a temperature sensor in a contact manner, and the temperature sensor senses the temperature of the base.

Adopt above-mentioned still further setting, temperature sensor detects connecting terminal's real-time temperature to take place high temperature warning, can reduce the difference in temperature between true value and the detected value, avoid inside high temperature can cause the circuit ageing short circuit and take place the incident, promote charging seat safety in utilization.

Still further, the present utility model is provided with: the base is provided with a mounting groove, and the temperature sensor is assembled in the mounting groove.

By adopting the further arrangement, the temperature sensor is directly arranged on the base, so that the contact conduction heat between the temperature sensor and the base is facilitated, the temperature sensor is convenient to install, and the assembly is convenient.

Still further, the present utility model is provided with: the center of the top surface of the connecting table is provided with a concave guiding groove which is in a conical shape with a small groove bottom and a large groove opening.

By adopting the further arrangement, the guide groove guides the butted contact pin to keep coaxiality with the connecting terminal, so that the coaxiality in the butting process is improved, and the structural stability after butting is provided.

Still further, the present utility model is provided with: the elastic arm extends from the side wall of the connecting table to the radial direction of the connecting terminal for a certain distance and then extends to the connecting terminal in the axial direction.

By adopting the above arrangement, the elastic arm has stronger elastic deformation capability.

Still further, the present utility model is provided with: the elastic arms are annularly and uniformly distributed on the connecting table to form a cylindrical structure.

By adopting the further arrangement, the elastic arms wrap the butted terminals, the current carrying capacity is improved, and the structural design meets the requirements.

Still further, the present utility model is provided with: the base is provided with a positioning groove which is matched with the positioning structure to axially position, and two opposite sides of the base are provided with plane positioning structures to prevent the connecting terminals from rotating.

Adopt above-mentioned still further setting, the constant head tank is used for axial positioning connecting terminal, and plane location structure is used for circumference location connecting terminal, promotes the spacing effect to connecting terminal.

Still further, the present utility model is provided with: the connecting terminal is integrally formed by machining.

By adopting the further arrangement, the processing efficiency is high, and the forming quality is good.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

1, a base; 2. an elastic arm; 21. an axial groove; 11. a connection station; 12. a ring groove; 3. an elastic collar; 4. a temperature sensor; 13. a mounting groove; 14. and a guide groove.

Description of the embodiments

The connection terminal of a charging stand as shown in fig. 1 and 2 comprises a base 1, a plurality of elastic arms 2 and an axial groove 21 between every two adjacent elastic arms 2, wherein each elastic arm 2 is surrounded into a cylindrical structure, a jack is formed in the cylindrical structure, the elastic arms 2 are connected onto the base 1, a connection table 11 is convexly arranged on the top surface of the base 1, the inner side of the bottom of each elastic arm 2 is integrally connected with the peripheral wall of the connection table 11, and a ring groove 12 is formed between each elastic arm 2 and the base 1. The elastic arm 2, the base 1 and the connecting table 11 are integrally formed, and the annular groove 12 is usually formed by turning. The area of the connection part between the connection table 11 and the elastic arm 2 is larger than that of the prior art, and the elastic arm 2 can be more firmly connected to the connection table 11. When the butt-joint contact pin is inserted into the jack, the contact pin presses the inner wall of the elastic arm 2, and the elastic arm 2 is in elastic tight contact with the contact pin, so that electric connection is realized. The annular groove 12 makes the bottom of the elastic arm 2 and the base 1 have a certain separation, and after the elastic arm 2 is elastically deformed, the elastic arm 2 can occupy the space of the annular groove 12, so that the elastic arm 2 has enough deformation in the radial range.

The groove bottom of the annular groove 12 forms an arc transition structure, the arc transition can disperse stress near the annular groove 12, the stress is more uniform, and the structural reliability is improved.

The elastic arms 2 are provided with elastic collars 3, the elastic collars 3 are sleeved on the outer surfaces of the elastic arms 2, and the elastic collars 3 elastically restrict the expansion of the elastic arms 2. When the contact pin is inserted into the jack, the elastic sleeve ring 3 elastically compensates the elastic arm 2, so that the elastic arm 2 is more tightly pressed on the contact pin, and the reliability of electric connection is higher than that of uncompensated electric connection.

The base 1 is also connected with a temperature sensor 4 in a contact manner, and the temperature sensor 4 senses the temperature of the base 1. The base 1 is provided with a mounting groove 13, and the temperature sensor 4 is assembled in the mounting groove 13 from the side surface of the base 1. The temperature sensor 4 is in direct contact with the base 1, so that the temperature of the connecting terminal can be monitored accurately in real time, and when the temperature exceeds the preset upper limit temperature, a high-temperature warning can be sent to the control terminal, and a user or the control system can perform subsequent safety measures so as to avoid accidents.

The center of the top surface of the connecting table 11 is provided with a concave guiding groove 14, and the guiding groove 14 is in a conical shape with a small groove bottom and a large groove opening. When the contact pin is inserted, the contact pin head part enters the guide groove 14 and is automatically aligned, so that the deviation of the position degree between the connecting terminal and the contact pin is automatically compensated, the insertion and extraction force can be reduced, the abrasion is reduced, and the service life is prolonged.

The elastic arm 2 extends from the side wall of the connecting table 11 to the radial direction of the connecting terminal for a certain distance and then extends to the axial top of the connecting terminal, and the connecting part of the elastic arm 2 and the connecting table 11 is in a section of bending shape, so that the elastic capability of the elastic arm 2 is improved.

The elastic arms 2 are annularly and uniformly distributed on the connecting table 11 to form a cylindrical structure, and when the elastic arms 2 are inserted, the terminals are abutted by wrapping, so that the current carrying capacity of electric transmission is improved.

The base 1 is provided with a positioning groove 15 to be matched with a positioning structure on the charging seat shell, so that the charging seat shell is axially positioned, and the connecting terminal is placed for axial displacement. Two opposite sides of the base 1 are provided with plane positioning structures 16 so as to position the connecting terminals in the circumferential direction and prevent the connecting terminals from rotating.

The connecting terminal is machined integrally, and is integrally machined and produced by a lathe, a milling machine and a planing machine through removing materials, so that the machining efficiency is high, and the forming quality is good.

Claims

1. The utility model provides a connecting terminal of charging seat, is including base, a plurality of elastic arm and the axial groove between the elastic arm, the elastic arm is connected on the base, its characterized in that: the top surface of base epirelief is equipped with the connection platform, the bottom inboard and the connection platform body coupling of elastic arm, form the annular between elastic arm and the base.

2. The connection terminal of the charging stand according to claim 1, wherein: and the bottom of the ring groove forms an arc transition structure.

3. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the elastic arms are provided with elastic lantern rings, and the elastic lantern rings are sleeved on the outer surfaces of the elastic arms.

4. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the base is also connected with a temperature sensor in a contact manner, and the temperature sensor senses the temperature of the base.

5. The connection terminal of the charging stand according to claim 4, wherein: the base is provided with a mounting groove, and the temperature sensor is assembled in the mounting groove.

6. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the center of the top surface of the connecting table is provided with a concave guide groove which is in a conical shape with a small groove opening at the bottom.

7. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the elastic arm extends from the side wall of the connecting table to the radial direction of the connecting terminal for a certain distance and then extends to the connecting terminal in the axial direction.

8. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the elastic arms are annularly and uniformly distributed on the connecting table to form a cylindrical structure.

9. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the base is provided with a positioning groove which is matched with the positioning structure to axially position, and two opposite sides of the base are provided with plane positioning structures to prevent the connecting terminals from rotating.

10. The connection terminal of the charging stand according to claim 1 or 2, characterized in that: the connecting terminal is integrally formed by machining.