New energy automobile super charging socket with terminal fixing structure

Abstract

The utility model discloses a new energy automobile super charging socket with a terminal fixing structure, and belongs to the technical field of automobile charging sockets. The temperature measuring socket comprises a socket shell and a temperature measuring plug pin, the socket shell is provided with a terminal jack and a plug pin jack, the wiring terminal is inserted into the socket shell through the terminal jack, one end of the temperature measuring plug pin is provided with a temperature measuring hole, and the other end of the temperature measuring plug pin penetrates through the plug pin jack and extends into the wiring terminal. And a temperature sensor is arranged in the temperature measuring hole. The deviation between the measured temperature and the actual temperature of the wiring terminal is smaller, and the temperature measurement precision can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle charging sockets, specifically a supercharging socket for new energy vehicles with a terminal fixing structure. Background Technology

[0002] High-power charging sockets have large charging currents and rapid temperature rise, which places high demands on the measurement accuracy and response speed of the temperature measurement system. Once the high-power charging socket experiences abnormal temperature rise, the temperature sensor needs to be able to feed back the temperature rise signal to the vehicle control system in a short time. Therefore, it is necessary to design a charging socket that can quickly feed back the temperature rise signal to the vehicle control system. Utility Model Content

[0003] The purpose of this invention is to provide a supercharging socket for new energy vehicles with a terminal fixing structure, so as to quickly feed back the temperature rise signal to the vehicle control system.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a supercharging socket for new energy vehicles with a terminal fixing structure, including a socket housing and a temperature measuring pin. The socket housing is provided with a terminal socket and a pin socket. The wiring terminal is inserted into the socket housing through the terminal socket. One end of the temperature measuring pin is provided with a temperature measuring hole, and the other end passes through the pin socket and extends into the interior of the wiring terminal. A temperature sensor is provided in the temperature measuring hole.

[0005] In the above technical solution, the center lines of the terminal socket, the temperature measuring hole, and the pin socket are arranged in a coplanar manner.

[0006] In the above technical solution, the center line of the terminal socket and the center line of the pin socket are arranged perpendicularly to each other, and the center line of the temperature measuring hole and the center line of the pin socket are arranged collinearly.

[0007] In the above technical solution, the distance between the center line of the wiring terminal and the bottom surface of the temperature measuring hole is less than the radius of the wiring terminal.

[0008] In the above technical solution, the distance between the center line of the wiring terminal and the bottom surface of the temperature measuring hole is 1 / 4 to 3 / 4 times the radius of the wiring terminal.

[0009] In the above technical solution, the socket housing is provided with a terminal sleeve sleeved on the wiring terminal and a pin sleeve sleeved on the temperature measuring pin.

[0010] In the above technical solution, the terminal sleeve and / or the pin sleeve are integrally formed with the pin sleeve.

[0011] The above technical solution also includes a fixing cover, one end of which is sleeved on the temperature measuring pin and the other end of which is sleeved on the terminal sleeve.

[0012] In the above technical solution, the fixing cover and the terminal sleeve are connected by a snap-fit ​​structure.

[0013] In the above technical solution, a sealing ring is provided on the wiring terminal and / or the temperature measuring pin.

[0014] This utility model provides a supercharging socket for new energy vehicles with a terminal fixing structure, which includes a socket housing, wiring terminals, and a temperature sensing pin. Because the end of the temperature sensing pin extends into the interior of the wiring terminals, and a temperature sensor is installed in the temperature sensing hole of the temperature sensing pin, the temperature sensor can quickly feed back the temperature rise information to the vehicle control system when the charging temperature rise is abnormal, thereby ensuring charging safety and preventing vehicle burnout. At the same time, since the temperature sensor can contact the interior of the wiring terminals through the temperature sensing pin, the distance between the temperature sensor and the wiring terminals is very close, and the deviation between the measured temperature and the actual temperature of the wiring terminals is smaller, which can effectively improve the temperature measurement accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded structural diagram of the supercharging socket for new energy vehicles described in this application;

[0017] Figure 2 This is a cross-sectional view of the supercharging socket for new energy vehicles described in this application;

[0018] Figure 3 This is a schematic diagram of the structure of the socket housing described in this application;

[0019] Figure 4 This is a schematic diagram of the structure of the terminal block described in this application;

[0020] Figure 5 This is a schematic diagram of the temperature measuring pin described in this application.

[0021] In the diagram: 1. Socket housing; 11. Housing body; 12. Terminal socket; 13. Plug socket; 14. Terminal sleeve; 15. Plug sleeve; 2. Wiring terminal; 21. Terminal body; 22. Terminal U-groove; 23. Plug hole; 3. Sealing ring; 4. Temperature measuring pin; 41. Plug body; 42. Plug U-groove; 43. Temperature measuring hole; 5. Snap-fit ​​structure; 6. Temperature sensor; 7. Fixing cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. At the same time, it should be understood that the specific embodiments described herein are merely used to explain the present utility model and are not intended to limit the present utility model.

[0023] The DC charging socket defined in the GB / T20234.3-2015 standard is the fast charging socket structure commonly used in passenger cars and commercial vehicles in China. This charging socket has a maximum rated current of 250A, corresponding to a charging power of approximately 100kW / hour. It takes more than half an hour to fully charge a car with a 60 kWh battery. However, the availability of charging stations is currently insufficient, often resulting in long queues. The problems of slow and difficult charging have long plagued car owners.

[0024] In January 2022, GB / T 20234.4 Connecting Devices for Conductive Charging of Electric Vehicles Part 4 published the "Draft for Comments on High-Power DC Charging Interface", with the aim of introducing a supercharging socket to achieve high-power charging and thus solve the problem of slow charging.

[0025] High-power charging sockets have large charging currents and rapid temperature rise, which places high demands on the measurement accuracy and response speed of the temperature measurement system. Once the high-power charging socket experiences an abnormal temperature rise, the temperature sensor 6 needs to be able to feed back the temperature rise signal to the vehicle control system in a short time. Therefore, it is necessary to design a charging socket that can quickly feed back the temperature rise signal to the vehicle control system.

[0026] In response to the above problems, such as Figure 1As shown, this utility model provides a supercharging socket for new energy vehicles with a terminal fixing structure, including a socket housing 1 and a temperature measuring pin 4. The socket housing 1 is provided with a terminal socket 12 and a pin socket 13. The wiring terminal 2 is inserted into the socket housing 1 through the terminal socket 12. One end of the temperature measuring pin 4 is provided with a temperature measuring hole 43, and the other end passes through the pin socket 13 and extends into the interior of the wiring terminal 2. A temperature sensor 6 is provided in the temperature measuring hole 43.

[0027] In actual operation, since the end of the temperature measuring pin 4 is inserted into the terminal 2, and a temperature sensor 6 is installed in the temperature measuring hole 43 of the temperature measuring pin 4, when the charging temperature rise is abnormal, the temperature sensor 6 can quickly feed back the temperature rise information to the vehicle control system, thereby ensuring charging safety and preventing vehicle burnout. At the same time, since the temperature sensor 6 can contact the inside of the terminal 2 through the temperature measuring pin 4, the distance between the temperature sensor 6 and the terminal 2 is very close, and the deviation between the temperature it measures and the actual temperature of the terminal 2 is smaller, which can effectively improve the temperature measurement accuracy.

[0028] The center lines of the terminal socket 12, the temperature measuring hole 43, and the pin socket 13 are arranged in a coplanar manner. In this way, the terminal socket 12, the pin socket 13, and the temperature measuring hole 43 will be in the same plane, making the installation of this application more convenient.

[0029] The center line of the terminal socket 12 and the center line of the pin socket 13 are perpendicularly intersecting, and the center line of the temperature measuring hole 43 and the center line of the pin socket 13 are collinear. This makes the processing and assembly of this application easier and more convenient to use.

[0030] The distance between the centerline of the terminal 2 and the bottom surface of the temperature sensing hole 43 is less than the radius of the terminal 2. This allows the temperature sensor 6, located within the temperature sensing hole 43, to penetrate directly into the terminal 2, shortening the distance between the head of the temperature sensor 6 and the terminal 2, thus enabling the temperature sensor 6 to measure the temperature of the terminal 2 more accurately. Furthermore, the distance between the centerline of the terminal 2 and the bottom surface of the temperature sensing hole 43 is 1 / 4 to 3 / 4 times the radius of the terminal 2. This ensures that the length of the temperature sensor 6 penetrating directly into the terminal 2 is not excessive, further allowing the temperature sensor 6 to measure the temperature of the terminal 2 more accurately.

[0031] The socket housing 1 is provided with a terminal sleeve 14 fitted onto the terminal block 2 and a pin sleeve 15 fitted onto the temperature sensing pin 4. Thus, under the action of the terminal sleeve 14 and the pin sleeve 15, the terminal block 2 and the temperature sensing pin 4 can be more easily inserted into the socket housing 1, thereby making the installation of this application more convenient. Furthermore, the terminal sleeve 14 and / or the pin sleeve 15 are integrally injection molded with the pin sleeve 15 to further reduce the manufacturing cost of this application.

[0032] Preferably, this application also includes a fixing cover 7, one end of which is sleeved on the temperature measuring pin 4 and the other end of which is sleeved on the terminal sleeve 14.

[0033] In actual operation, the temperature sensor 6 is inserted into the temperature measuring hole 43 and installed inside the temperature measuring hole 43. Then, the fixing cover 7 is placed on top. At this time, the temperature sensor 6 is also fixed inside the temperature measuring pin 4. This structure can achieve the purpose of fixing the terminal 2 on the one hand, and facilitate the temperature sensor 6 to extend into the terminal 2 on the other hand, so as to reduce the deviation between the temperature measured by the temperature sensor 6 and the actual temperature of the terminal 2, and at the same time reduce the temperature response time.

[0034] The fixing cover 7 and the terminal sleeve 14 are connected by a snap-fit ​​structure 5. In this way, the fixing cover 7 can be secured to the socket housing 1 by the snap-fit ​​structure 5, preventing it from detaching from the socket housing and thus increasing the structural stability of this application. In actual operation, since the snap-fit ​​structure 5 is a conventional method in this field, it will not be described in detail here.

[0035] A sealing ring 3 is fitted on the terminal block 2 and / or the temperature measuring pin 4 to increase the sealing performance of this application and give it better waterproof performance.

[0036] In actual operation, the terminal 2 includes a terminal body 21, on which a terminal U-shaped groove 22 and a pin hole 23 are provided. The pin hole 23 is used for the temperature measuring pin 4 to pass through. The sealing ring 3 (O-ring) of the terminal 2 is installed on the terminal U-shaped groove 22. Then, the terminal 2 with the O-ring is inserted into the terminal socket 12 on the socket housing 1. After installation, the sealing ring 3 forms a seal between the inner wall of the terminal socket 12 and the terminal U-shaped ring 22, which can prevent water from entering the socket from the front end of the socket housing 1 into the socket, thereby improving the safety performance of this application.

[0037] In actual operation, the temperature-sensing pin 4 is provided with a pin U-shaped groove 42, and the sealing ring 3 (O-ring) on ​​the temperature-sensing pin 4 is installed in the pin 42 U-shaped groove. There are two pin U-shaped grooves 42 and two sealing rings 3 (O-rings), which can increase the sealing effect. The sealing ring 3 forms a seal between the pin U-shaped groove 42 and the inner wall of the pin insertion hole 13 on the socket housing 1, which can prevent water from flowing into the socket from the top of the socket housing 1, thereby improving the safety performance of this application.

[0038] like Figure 1 As shown, after inserting terminal 2 into terminal socket 12 on socket housing 1, the temperature measuring hole 43 on terminal 2 is aligned with the temperature measuring hole 43 on socket housing 1. Then, insert the temperature measuring pin 4 with an O-ring into the temperature measuring hole 43 on socket housing 1 and press it down until the head of the temperature measuring pin 4 extends into terminal socket 12. This secures terminal 2 within socket housing 1. Insert temperature sensor 6 into temperature measuring hole 43, then cover with fixing cover 7. Fixing cover 7 engages with the clips on socket housing 1, preventing temperature sensor 6 from falling out and fixing it inside pin socket 13.

[0039] In actual operation, because the head of the temperature-sensing pin 4 extends into the terminal 2, and the temperature sensor 6 is inserted into the temperature-sensing hole 43, the head of the temperature sensor 6 also extends into the terminal 2. The temperature sensor 6 and the terminal 2 are separated by the temperature-sensing pin 4. Thus, when the socket is charged with a large current, the terminal 2 begins to heat up, and the heat is quickly transferred to the temperature-sensing pin 4 through the terminal 2. At this time, the temperature sensor 6 can collect the temperature inside the temperature-sensing pin 4. Compared with the ordinary socket solution that first places the temperature sensor 6 inside the socket housing 1, then keeps a certain distance from the terminal 2, and finally relies on the air to transfer the temperature of the terminal 2, the technical solution of this application is faster in terms of temperature measurement response speed.

[0040] Compared with the prior art, the advantages of this utility model are as follows:

[0041] 1) The structure of this application is relatively simple and easy to assemble. It eliminates the structural component for fixing the terminal 2 and solves the problem of fixing the terminal 2 by using a temperature measuring pin 4, avoiding the need for screws and making the installation operation simpler.

[0042] 2) The temperature sensor 6 is installed inside the temperature measuring pin 4, and the temperature measuring pin 4 is an insulator, which can effectively prevent the temperature sensor 6 from being broken down by high voltage during the charging process.

[0043] 3) The temperature sensor 6 is positioned closer to the terminal 2, and the temperature compensation value is 5-10K lower than that of the existing conventional solution. The response speed is faster than that of the conventional temperature sensor 6.

[0044] 4) This application can achieve rapid assembly, reduce temperature compensation value and improve temperature measurement response speed.

[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A new energy vehicle super charging socket with a terminal fixing structure, characterized in that: The invention comprises a socket housing (1) and a temperature measuring plug (4), wherein the socket housing (1) is provided with a terminal insertion hole (12) and a plug insertion hole (13), the connection terminal (2) is inserted into the socket housing (1) through the terminal insertion hole (12), one end of the temperature measuring plug (4) is provided with a temperature measuring hole (43), and the other end passes through the plug insertion hole (13) and extends into the interior of the connection terminal (2), a temperature sensor (6) is provided in the temperature measuring hole (43), the socket housing (1) is provided with a terminal sleeve (14) sleeved on the connection terminal (2) and a plug sleeve (15) sleeved on the temperature measuring plug (4), and the terminal sleeve (14) and / or the plug sleeve (15) are an integrated structure with the plug sleeve (15); It also comprises a fixing cover (7), one end of the fixing cover (7) being sleeved on the temperature measuring plug (4) and the other end being sleeved on the terminal sleeve (14), the fixing cover (7) and the terminal sleeve (14) being connected via a snap-fit ​​structure (5), and a sealing ring (3) being sleeved on the wiring terminal (2) and / or the temperature measuring plug (4).

2. A new energy vehicle super charging socket with a terminal fixing structure according to claim 1, characterized in that: The center line of the terminal insertion hole (12), the center line of the temperature measuring hole (43) and the center line of the plug insertion hole (13) are arranged in the same plane.

3. A new energy vehicle super charging socket with a terminal fixing structure according to claim 2, characterized in that: The center line of the terminal insertion hole (12) and the center line of the plug insertion hole (13) are arranged to intersect each other vertically, and the center line of the temperature measuring hole (43) and the center line of the plug insertion hole (13) are arranged to be collinear.

4. A new energy vehicle super charging socket with a terminal fixing structure according to claim 3, characterized in that: The distance between the center line of the wiring terminal (2) and the bottom surface of the temperature measuring hole (43) is smaller than the radius of the wiring terminal (2).

5. A new energy vehicle super charging socket with a terminal fixing structure according to claim 4, characterized in that: The distance between the center line of the wiring terminal (2) and the bottom surface of the temperature measuring hole (43) is 1 / 4 to 3 / 4 times the radius of the wiring terminal (2).

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