Charging gun temperature rise detection equipment

Abstract

The invention relates to the technical field of new energy automobile charging gun detection equipment, in particular to charging gun temperature rise detection equipment which comprises a case, an automobile sample socket is installed on the case, the automobile sample socket comprises an end base, a connecting terminal is connected to the end base, a heating rod is installed on the connecting terminal, and a copper bar is installed on the connecting terminal. A temperature sensor is detachably installed on the case, and a protection assembly for enhancing the safety of the copper bar is installed on the case. The charging gun temperature rise detection device has the effect of improving the safety of the charging gun temperature rise detection device in the use process.

Description

Technical Field

[0001] This application relates to the technical field of charging gun testing equipment for new energy vehicles, and in particular to a charging gun temperature rise testing device. Background Technology

[0002] To ensure safety during the charging process of new energy vehicles, the charging guns for new energy vehicles are required to trigger an overheat protection mechanism to automatically cut off power when the temperature of the charging gun exceeds 90℃. However, due to assembly errors and other reasons during the production and assembly of the DC terminals, the temperature sensor inside each charging gun will generally have reading deviations and cannot accurately reflect the temperature of the area where the charging gun and the socket are connected. For example, when the temperature at the contact point between the DC terminal and the vehicle socket is greater than 90℃, the temperature sensor inside the charging gun may not detect a temperature of 90℃ due to differences in the thermal conductivity of the terminals or the temperature sensing characteristics of the sensor. In order to verify whether the charging guns of the same batch can achieve automatic power-off at this temperature protection value, it is necessary to sample the charging guns produced in the same batch for temperature rise testing.

[0003] When using temperature rise testing, a car-specific socket, similar to an automotive socket, is required to connect to the charging gun. The car-specific socket has a connection terminal that connects to the DC terminal of the charging gun. Since the car-specific socket does not have a power storage function, the connection terminal needs to be connected to a copper busbar to form a complete circuit to simulate the flow of current, so that the charging gun can simulate charging. However, the copper busbar is a connector and is prone to overheating or even burning at the two connection terminals. When the copper busbar burns out, the resulting electrical sparks can easily cause injury to workers or nearby circuits. Summary of the Invention

[0004] To improve the ease of operation of the charging gun temperature rise detection device, this application provides a charging gun temperature rise detection device.

[0005] This application provides a charging gun temperature rise detection device, which adopts the following technical solution: A charging gun temperature rise detection device includes a chassis, a vehicle sample socket mounted on the chassis, the vehicle sample socket including an end base, a connection terminal connected to the end base, a heating rod mounted on the connection terminal, a copper busbar mounted on the connection terminal, a temperature sensor detachably mounted on the chassis, and a protective component for enhancing the safety of the copper busbar mounted on the chassis.

[0006] By adopting the above technical solution, the heating rod can simulate the heating scenario when the charging gun is working. The copper busbar forms a complete circuit to ensure the stability of the simulated charging. The temperature sensor enables accurate detection of the temperature of the docking area. The protective component can effectively block the electric sparks generated when the copper busbar heats up or burns. This not only meets the temperature rise test requirements but also improves the safety of the equipment. At the same time, the detachable design of the temperature sensor facilitates the installation and removal of the charging gun, improving the ease of operation.

[0007] In one specific implementation, the temperature sensor includes a housing with a base plate connected to it. A slide rail is provided on the housing, and a thermocouple for measuring temperature is slidably connected to the housing via the slide rail. A first spring is installed at the end of the thermocouple near the base plate, and the end of the first spring away from the thermocouple abuts against the base plate. A first socket for inserting the thermocouple is provided on the end seat, a second socket is provided on the connection terminal, and a third socket is provided on the side wall of the charging gun.

[0008] By adopting the above technical solution, the elastic force of the first spring can push the thermocouple to fit tightly against the DC terminal of the charging gun, ensuring the accuracy of temperature detection; the slide provides a stable sliding guide for the thermocouple, and the design of the first, second and third sockets ensures that the thermocouple can be accurately inserted and fit against the detection position, improving the reliability of temperature detection.

[0009] In one specific implementation, a first magnet is mounted on the housing, a second magnet is mounted on the chassis, and the temperature sensor is attracted to the chassis by the attraction between the first magnet and the second magnet.

[0010] By adopting the above technical solution, the temperature sensor can be quickly and easily installed and removed using magnetic adsorption without the need for additional tools. The operation is simple and efficient, and the adsorption fixation method can ensure the stability of the temperature sensor after installation, avoiding the impact of loosening on the detection results during the detection process.

[0011] In one specific implementation, the protective component includes a base mounted on the chassis, the base having a slot, a top mount detachably mounted on the base, and a insert for insertion into the slot mounted on the top mount.

[0012] By adopting the above technical solution, the base and the top seat are detachably connected through the cooperation of the insert and the slot, which facilitates the inspection or replacement of the copper busbar. At the same time, the protective space formed by the top seat and the base can effectively shield the copper busbar, prevent the spread of electric sparks, and improve the safety of equipment use.

[0013] In one specific implementation, a first slide rod is slidably mounted on the base, and a first locking block is mounted on the end of the first slide rod near the slot, which is engaged with the insert. The first locking block has a beveled angle. A second spring is sleeved on the first slide rod. A connecting plate is mounted on the end of the first slide rod away from the first locking block. A movable frame is slidably mounted on the base, and a pull plate is mounted on the movable frame. The pull plate abuts against the connecting plate.

[0014] By adopting the above technical solution, when the insert is inserted into the slot, the first sliding rod can be automatically pushed away by the beveled angle of the first locking block. After the insert is inserted into place, the second spring rebounds and drives the first locking block to lock the insert, realizing the quick locking and fixing of the base and the top seat. Pulling the movable frame moves the connecting plate through the pull plate, which can make the first locking block disengage from the insert, making it easy to disassemble the top seat. The operation is convenient and the fixation is reliable.

[0015] In one specific implementation, a first guide rod is installed on the insert, a second locking block is slidably installed on the first guide rod, a fourth spring is sleeved on the first guide rod, one end of the fourth spring is connected to the second locking block, and the other end is connected to the insert, and a slot for accommodating the second locking block is provided on the base.

[0016] By adopting the above technical solution, the fourth spring pushes the second locking block into the slot, forming a double locking and fixing structure, which further improves the stability of the connection between the base and the top seat and avoids the top seat from falling off accidentally during equipment operation; the first guide rod provides stable sliding guidance for the second locking block to ensure accurate and reliable locking action.

[0017] In one specific implementation, a third spring is installed on the base, a movable plate is installed on the third spring, and the movable frame is placed on the movable plate; a second guide rod is installed on the base, a sliding sleeve is slidably installed on the second guide rod, a fifth spring is sleeved on the second guide rod, and a pressure hook for hooking the movable frame is connected to the sliding sleeve.

[0018] By adopting the above technical solution, the third spring supports the movable plate to provide elastic support for the movable frame. The pressure hook hooks the movable frame under the action of the insert plate, thereby limiting and fixing the movable frame and preventing the first locking block from loosening due to movement of the movable frame in non-operational state. The movable frame can be released by pressing the sliding sleeve, which is convenient to operate and ensures the stability and reliability of the locking structure.

[0019] In one specific implementation, the top seat is provided with ventilation holes.

[0020] By adopting the above technical solution, the vent can dissipate the heat generated by the copper busbar in a timely manner, avoiding excessive temperature in the protective space from affecting the normal operation of other components of the equipment, while not affecting the anti-sparking function of the protective components, thus achieving a balance between heat dissipation and protection.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up protective components, the copper busbars can be effectively shielded, preventing electric sparks generated when they heat up or burn out, thus avoiding injury to staff or nearby lines and significantly improving the safety of equipment use.

[0022] 2. The temperature sensor adopts a detachable design with magnetic adsorption, combined with the elastic contact structure of the thermocouple, which not only ensures the accuracy of temperature detection, but also facilitates the installation and removal of the charging gun, improving the ease of operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the detection device according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram illustrating the connection position between the vehicle-shaped socket and the charging gun in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the end seat according to an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the connection terminals according to an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the installation position of the heating rod according to an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the installation position of the second magnet in an embodiment of this application.

[0029] Figure 7 This is a schematic diagram of a temperature sensor according to an embodiment of this application.

[0030] Figure 8 This is a schematic diagram of the protective component according to an embodiment of this application.

[0031] Figure 9 This is a cross-sectional view of the protective component according to an embodiment of this application.

[0032] Figure 10 yes Figure 9 Enlarged view of point A in the middle.

[0033] Reference numerals: 1. Chassis; 2. Car-shaped socket; 21. End cap; 211. First socket; 22. Connecting terminal; 221. Second socket; 23. Copper busbar; 24. Heating rod; 3. Temperature sensor; 31. Housing; 311. Slide rail; 32. Base plate; 321. Support rod; 33. Thermocouple; 34. First spring; 35. First magnet; 36. Second magnet; 41. Third socket; 5. Protective assembly; 51. Base; 511 512. Slot; 52. Top seat; 521. Insert piece; 522. First guide rod; 523. Second locking block; 524. Fourth spring; 531. First slide rod; 532. First locking block; 533. Second spring; 534. Connecting plate; 535. Third spring; 536. Movable plate; 537. Movable frame; 538. Pull plate; 541. Second guide rod; 542. Sliding sleeve; 543. Fifth spring; 544. Pressure hook. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0035] This application discloses a charging gun temperature rise detection device, referring to... Figure 1 and Figure 2 It includes a chassis 1, on which a vehicle-shaped socket 2 is fixedly installed, and a temperature sensor 3 is detachably installed.

[0036] Reference Figure 3 , Figure 4 and Figure 5 The vehicle-mounted socket 2 includes a base 21, on which two connection terminals 22 are fixedly installed, which are engaged with the DC terminals of the charging gun. In this embodiment, the charging gun is prior art, and the DC terminals of the charging gun refer to the positive and negative contact terminals connected to the power supply, mainly used for fast charging of new energy vehicles. One end of the connection terminal 22 is the connection end connected to the charging gun, and the other end is detachably connected to a copper busbar 23 by screws. The copper busbar 23 connects the two connection terminals 22 to form a complete current loop. A heating element, which is a heating rod 24, is embedded in the connection terminal 22. The heating rod 24 is located at the end of the connection terminal 22 that contacts the DC terminal and is connected to a power supply.

[0037] Reference Figure 6 and Figure 7The temperature sensor 3 includes a housing 31 and a base plate 32. The base plate 32 is snapped onto the housing 31. A slide rail 311 is provided on the housing 31, through which a thermocouple 33 for measuring temperature is slidably connected. A first spring 34 is fixedly installed at the end of the thermocouple 33 near the base plate 32, and the end of the first spring 34 away from the thermocouple 33 abuts against the base plate 32. A first magnet 35 is placed on the housing 31, and a stop rod 321 is fixedly installed on the base plate 32. The base plate 32 uses the stop rod 321 to press the first magnet 35 against the housing 31. A second magnet 36 is detachably installed on the housing 1 by screws. The temperature sensor 3 is attracted to the housing 1 by the attraction between the first magnet 35 and the second magnet 36. A first insertion hole 211 for inserting the thermocouple 33 is provided on the end base 21, and a second insertion hole 221 is provided on the connecting terminal 22, which is aligned with the first insertion hole 211.

[0038] Reference Figure 2 A third socket 41 is provided on the side wall of the insertion end of the charging gun into the car socket 2. After the charging gun is inserted into the car socket 2, the third socket 41 can be aligned with the first socket 211.

[0039] Before inserting the charging gun into the chassis 1, remove the temperature sensors 3 from both sides of the chassis 1. Insert the charging gun into the vehicle-mounted socket 2, then align the thermocouple 33 with the first socket 211, ensuring that the thermocouple 33 passes through the first socket 211, the third socket 41, and the second socket 221 in sequence, and then presses against the DC terminal of the charging gun. Finally, the first magnet 35 and the second magnet 36 attract each other to the chassis 1. The charging gun is then connected to a power source to generate current, and the heating rod 24 is connected to a power source to heat the connection terminal 22 and the DC terminal. Observe whether the charging gun automatically cuts off power when the temperature measured by the temperature sensor 3 reaches 90°C.

[0040] Reference Figure 8 , Figure 9 and Figure 10The chassis 1 is equipped with a protective component 5 that shields the copper busbar 23. The protective component 5 includes a base 51, which is fixedly installed on the chassis 1. A top seat 52 is detachably installed on the base 51. A slot 511 is provided on the base 51. A first slide rod 531 is slidably installed on the base 51. A first locking block 532 is fixedly installed on the end of the first slide rod 531 near the slot 511. A chamfer is provided on the side of the first locking block 532 near the top seat 52. A second spring 533 is sleeved on the first slide rod 531. One end of the second spring 533 is fixedly connected to the first locking block 532, and the other end is fixedly connected to the base 51. A connecting plate 534 is fixedly installed on the end of the first slide rod 531 away from the first locking block 532. A third spring 535 is fixedly installed on the base 51. A movable plate 536 is connected to the third spring 535. A movable frame 537 is placed on the movable plate 536 and is slidably connected to the base 51. A pull plate 538 is fixedly installed on the movable frame 537 and abuts against the connecting plate 534. The pull plate 538 is located on the side of the connecting plate 534 near the first locking block 532. An insert 521 for inserting into the slot 511 is fixedly installed on the top seat 52. A first guide rod 522 is fixedly installed on the insert 521. A second locking block 523 is slidably installed on the first guide rod 522. A fourth spring 524 is sleeved on the first guide rod 522. One end of the fourth spring 524 is fixedly connected to the second locking block 523, and the other end is fixedly connected to the top seat 52. A slot 512 for accommodating the second locking block 523 is provided on the base 51.

[0041] After the copper busbar 23 is installed, the insert 521 on the top seat 52 is aligned with the slot 511 and inserted into the base 51. During the insertion of the insert 521 into the slot 511, the insert 521 will abut against the first locking block 532. The first locking block 532 is pushed by the inclined surface. When the second locking block 523 moves to align with the first locking block 532, it will rebound by the second spring 533. The first locking block 532 will push the second locking block 523 to move and push the second locking block 523 into the slot 512, thereby completing the locking between the base 51 and the top seat 52.

[0042] A second guide rod 541 is fixedly installed on the base 51. A sliding sleeve 542 is slidably installed on the second guide rod 541. A fifth spring 543 is sleeved on the second guide rod 541. One end of the fifth spring 543 is fixedly connected to the sliding sleeve 542, and the other end is fixedly connected to the base 51. A pressure hook 544 for hooking the movable frame 537 is fixedly installed on the sliding sleeve 542.

[0043] A vent hole is provided on the top surface of the top seat 52, and the vent hole is connected to the interior of the top seat 52.

[0044] When the insert 521 is inserted into the slot 511, the bottom end of the insert 521 will press the sliding sleeve 542. When the sliding sleeve 542 drives the pressing hook 544 to move downward, the pressing hook 544 hooks the movable frame 537 and limits the movable frame 537.

[0045] When it is necessary to remove the top seat 52, first press down on the movable frame 537 to disengage it from the pressure hook 544, then pull the movable frame 537 outward from the base 51. The pull plate 538 on the movable frame 537 will pull the connecting plate 534 to move. The connecting plate 534 will cause the first locking block 532 to leave the insert 521. The fourth spring 524 will rebound and cause the second locking block 523 to leave the slot 512, thus completing the unlocking of the top seat 52.

[0046] The implementation principle of this embodiment is as follows: In use, the copper busbar 23 is first installed on the connecting terminal 22. The top seat 52 is installed through the cooperation of the insert 521 and the slot 511. The double snapping of the first clip 532 and the second clip 523 is used to fix the top seat 52 and the base 51, forming a protection for the copper busbar 23. Then, the temperature sensor 3 is removed, the charging gun is inserted into the vehicle socket 2, and the temperature sensor 3 is fixed to the chassis 1 by magnetic attraction, so that the thermocouple 33 passes through the corresponding socket and abuts against the DC terminal. After the power is turned on, the heating rod 24 heats to simulate the temperature rise scenario. The copper busbar 23 forms a circuit to ensure the current flow. The temperature sensor 3 detects the temperature in real time. When the detected temperature reaches 90°C, it is observed whether the charging gun automatically cuts off the power, completing the temperature rise test, which helps to improve the safety and stability of the equipment.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A charging gun temperature rise detection device, characterized in that: Includes a chassis (1), on which a vehicle-shaped socket (2) is installed, the vehicle-shaped socket (2) includes an end plate (21), on which a connection terminal (22) is connected, on which a heating element is installed, on which a copper busbar (23) is installed, on which a temperature sensor (3) is detachably installed, and on which a protective component (5) is installed to enhance the safety of the copper busbar (23).

2. The charging gun temperature rise detection device according to claim 1, characterized in that: The temperature sensor (3) includes a housing (31), a base plate (32) is connected to the housing (31), a slide rail (311) is provided on the housing (31), a thermocouple (33) for measuring temperature is slidably connected to the housing (31) through the slide rail (311), a first spring (34) is installed at one end of the thermocouple (33) near the base plate (32), and the end of the first spring (34) away from the thermocouple (33) abuts against the base plate (32); a first socket (211) for inserting the thermocouple (33) is provided on the end seat (21), a second socket (221) is provided on the connection terminal (22), and a third socket (41) is provided on the side wall of the charging gun.

3. The charging gun temperature rise detection device according to claim 2, characterized in that: A first magnet (35) is installed on the outer casing (31), and a second magnet (36) is installed on the chassis (1). The temperature sensor (3) is attracted to the chassis (1) by the first magnet (35) and the second magnet (36).

4. The charging gun temperature rise detection device according to claim 1, characterized in that: The protective component (5) includes a base (51) which is mounted on the chassis (1). The base (51) has a slot (511) and a top seat (52) which is detachably mounted on the base (51). The top seat (52) has a insert (521) that is inserted into the slot (511).

5. The charging gun temperature rise detection device according to claim 4, characterized in that: A first slide rod (531) is slidably mounted on the base (51). A first locking block (532) is mounted on the insert (521) at one end of the first slide rod (531) near the slot (511). The first locking block (532) has a chamfered angle. A second spring (533) is sleeved on the first slide rod (531). A connecting plate (534) is mounted on the end of the first slide rod (531) away from the first locking block (532). A movable frame (537) is slidably mounted on the base (51). A pull plate (538) is mounted on the movable frame (537). The pull plate (538) abuts against the connecting plate (534).

6. The charging gun temperature rise detection device according to claim 5, characterized in that: A first guide rod (522) is installed on the insert (521), a second locking block (523) is slidably installed on the first guide rod (522), a fourth spring (524) is sleeved on the first guide rod (522), one end of the fourth spring (524) is connected to the second locking block (523), and the other end is connected to the insert (521). A slot (512) for accommodating the second locking block (523) is provided on the base (51).

7. The charging gun temperature rise detection device according to claim 5, characterized in that: A third spring (535) is installed on the base (51), a movable plate (536) is installed on the third spring (535), and the movable frame (537) is placed on the movable plate (536); a second guide rod (541) is installed on the base (51), a sliding sleeve (542) is slidably installed on the second guide rod (541), a fifth spring (543) is sleeved on the second guide rod (541), and a pressure hook (544) that hooks the movable frame (537) is connected to the sliding sleeve (542).

8. The charging gun temperature rise detection device according to claim 4, characterized in that: The top seat (52) has ventilation holes.

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