Temperature and current detection device for rail transit high-voltage connector

Abstract

The invention discloses a temperature and current detection device for a rail transit high-voltage connector, and relates to the technical field of temperature and current detection for high-voltage connectors, the temperature and current detection device comprises a connector, one side of the connector is fixedly provided with a shielding tube, the shielding tube is internally provided with a contact member, and the contact member is internally sleeved with a cable; the device comprises a shielding tube, the outer wall of the shielding tube is fixedly sleeved with a current transformer, the upper surface of the current transformer is fixedly connected with a mounting seat, the outer wall of the mounting seat is fixedly provided with a manual adjusting mechanism, and the output end of the manual adjusting mechanism is fixedly connected with a temperature detection mechanism. The position of the temperature sensor can be conveniently adjusted through the manual adjusting mechanism, so that the temperature sensor is in contact with or separated from the contact piece, and the temperature change conducted by the cable can be accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature and current detection for high-voltage connectors, and in particular to a temperature and current detection device for rail transit high-voltage connectors. Background Art

[0002] High-voltage connectors play a key role in rail transit vehicles, and the temperature rise of their contacts is directly related to the safety and stability of the entire circuit system. By installing temperature sensors and feeding back temperature information to the main control device, real-time monitoring of connector temperature changes can be achieved, abnormal temperature rise can be discovered in time, and circuit ablation or equipment damage caused by overheating can be avoided, thereby preventing ablation or circuit damage caused by excessive temperature, thereby ensuring the safety of the vehicle during driving.

[0003] However, temperature sensors are prone to poor contact in a vibrating environment, which may not only affect the accuracy and reliability of the sensor, but may also cause the monitoring system to fail, making it impossible to effectively prevent potential safety hazards.

[0004] Therefore, a temperature sensor device in a connector is proposed which can not only effectively prevent the leakage problem caused by the contact core inside the insulator, but also effectively and conveniently limit the movement of the temperature sensor and can be easily disassembled and maintained. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a temperature and current detection device for a rail transit high-voltage connector.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A temperature and current detection device for a rail transit high-voltage connector comprises a connector, a shielding tube is fixedly mounted on one side of the connector, a contact is arranged inside the shielding tube, and a cable is sleeved inside the contact;

[0008] A current transformer is fixedly sleeved on the outer wall of the shielding tube, a mounting seat is fixedly connected to the upper surface of the current transformer, a manual adjustment mechanism is fixedly installed on the outer wall of the mounting seat, a temperature detection mechanism is fixedly connected to the output end of the manual adjustment mechanism, the manual adjustment mechanism is used to adjust the lifting position of the temperature detection mechanism, the bottom detection end of the temperature detection mechanism passes through the shielding tube and rests on the contact piece, and the temperature detection mechanism is used to detect the temperature conducted by the cable on the contact piece.

[0009] Preferably, a limiting block is fixedly connected to one side of the mounting seat, a guide hole is provided on the outer wall of the limiting block, and the top end of the temperature detection mechanism is slidably inserted into the guide hole.

[0010] Preferably, the temperature detection mechanism includes a sleeve, the top end of the sleeve is slidably inserted in the guide hole of the outer wall of the limit block, the other end of the sleeve passes through and extends to the interior of the shielding tube, the extended end of the sleeve is fixedly connected to a temperature sensor, the detection end of the temperature sensor contacts the outer wall of the contact piece, the temperature sensor is connected to a wire that passes through the sleeve to provide power support for the temperature sensor, the outer wall of the sleeve is fixedly connected to a limit disk, one side of the limit disk is fixedly connected to a connecting block, the connecting block is connected to the output end of the manual adjustment mechanism, the outer wall of the sleeve is sleeved with a spring, the bottom of the spring contacts the limit disk, and the top of the spring contacts the outer wall of the limit block.

[0011] Preferably, the manual adjustment mechanism includes a screw rod, the bottom end of which is rotatably connected to the outer wall of the mounting seat, the outer wall of the mounting seat is fixedly connected to a guide rod, the outer wall of the screw rod is threadedly connected to a slider, the slider is slidably connected to the guide rod, a slot is provided on one side of the slider, a support rod is fixedly connected in the slot, the connecting block is slidably sleeved with the support rod, the top of the mounting seat is rotatably connected to an opening and closing control component, and the bottom end of the opening and closing control component is movably connected to the top end of the screw rod.

[0012] Preferably, the opening and closing control assembly comprises a knob and a lower rotating rod, the lower surface of the knob is fixedly connected to the lower rotating rod, and the top of the mounting seat is provided with a through hole matching the lower rotating rod;

[0013] A lower square groove is formed on the lower surface of the lower rotating rod, and a first square plugging rod is fixedly connected to the top end of the screw rod, and the first square plugging rod is plugged into the lower rotating rod on the lower surface of the knob.

[0014] Preferably, a mounting frame is fixedly mounted on the top of the mounting seat, an automatic adjustment mechanism is fixedly mounted on the outer wall of the mounting frame, and an output end of the automatic adjustment mechanism is movably connected to the top of the opening and closing control component.

[0015] Preferably, the automatic adjustment mechanism includes a motor, the output end of the motor is fixedly connected to a second square plug rod, the upper surface of the knob is fixedly connected to an upper rotating rod, the upper surface of the upper rotating rod is provided with an upper square groove, and the second square plug rod is inserted into the upper square groove on the upper surface of the upper rotating rod.

[0016] Preferably, a through hole is provided on the shielding tube, a plurality of annular grooves are provided on the inner wall of the through hole, an insulating sleeve is installed in the through hole, an annular groove is provided on the outside of the insulating sleeve for snap-fitting, and the insulating sleeve is slidably connected with the sleeve.

[0017] Preferably, the current transformer is an open-type current transformer.

[0018] Preferably, a limiting groove is provided on the inner wall of the shielding tube, a convex ring is provided at one end of the contact piece, the convex ring is located in the limiting groove, an internal thread is provided at one end of the shielding tube, and a tail plug is threadedly connected to the end of the shielding tube located at the internal thread, and the tail plug abuts against the end of the contact piece.

[0019] The beneficial effects of the present invention are:

[0020] 1. In the present invention, the position of the temperature sensor can be conveniently adjusted through a manual adjustment mechanism, so that the temperature sensor is in contact with or separated from the contact piece, and the temperature change of the cable conduction can be accurately detected. The limit plate arranged on the sleeve is subjected to the pressure of the spring, so that when the entire connector is shaken arbitrarily, the spring will always generate a downward thrust on the sleeve, thereby ensuring that when the temperature sensor detects the temperature of the contact piece, the detection end of the temperature sensor can always be in contact with the contact piece, avoiding vibration that affects the position of the temperature sensor, resulting in poor contact between the detection end of the temperature sensor and the contact piece, resulting in unstable detection, thereby improving the temperature detection accuracy and stability.

[0021] 2. In the present invention, through the design of the current transformer, the current transformer is an open-type current transformer, which is convenient for installation and disassembly. The current transformer is fixedly sleeved on the outer wall of the shielding tube. The current transformer can be used to fix the mounting base, and the current transformer can also be used to detect the size of the cable current, thereby realizing an integrated design of temperature detection and current detection.

[0022] 3. In the present invention, an insulating sleeve is installed in the through hole of the shielding tube, and the insulating sleeve is snap-fitted with the annular groove on the inner wall of the through hole, which can not only improve the sealing performance of the push rod installation location, but also effectively avoid leakage, thereby improving the safety of the entire device.

[0023] 4. In the present invention, the automatic adjustment mechanism can be communicated with the control unit in the vehicle through the motor, the second square plug-in rod, the control module and the wireless communication module. The personnel can remotely control the operation of the motor, thereby controlling the position of the temperature sensor, and realizing remote control of the temperature detection of the cable conduction in the contact piece, which further improves the convenience of temperature detection and also meets the usage requirements in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a temperature and current detection device for a rail transit high-voltage connector of the present invention.

[0025] Figure 2 The present invention is a schematic structural diagram of a shielded tube, a tail plug, a cable, and a current transformer of a temperature and current detection device for a rail transit high-voltage connector.

[0026] Figure 3The present invention is a schematic structural diagram of a tail plug and a contact piece of a temperature and current detection device for a rail transit high-voltage connector.

[0027] Figure 4 It is a structural schematic diagram of a temperature detection mechanism and a manual adjustment mechanism of a temperature and current detection device for a rail transit high-voltage connector of the present invention.

[0028] Figure 5 The present invention is a schematic structural diagram of an automatic adjustment mechanism of a temperature and current detection device for a rail transit high-voltage connector.

[0029] Figure 6 The present invention is a schematic structural diagram of an opening and closing control component and an automatic adjustment mechanism of a temperature and current detection device for a rail transit high-voltage connector.

[0030] Figure 7 A temperature and current detection device for a rail transit high voltage connector of the present invention Figure 3 Schematic diagram of the local structure at point A in the middle.

[0031] Figure 8 The present invention is a schematic structural diagram of a shielding tube and a contact piece of a temperature and current detection device for a rail transit high-voltage connector.

[0032] Numbers in the figure: 1, connector; 2, shielding tube; 201, limit slot; 3, tail plug; 4, cable; 5, current transformer; 6, mounting base;

[0033] 7. Temperature detection mechanism; 701. Sleeve; 702. Temperature sensor; 703. Wire; 704. Limit plate; 705. Connecting block; 706. Spring;

[0034] 8. Manual adjustment mechanism; 801. Screw rod; 8011. First square plug rod; 802. Guide rod; 803. Slider; 804. Support rod; 805. Opening and closing control assembly; 8051. Knob; 8052. Lower rotating rod; 8053. Upper rotating rod; 8054. Lower square slot; 8055. Upper square slot;

[0035] 9. Automatic adjustment mechanism; 901. Motor; 902. Second square plug rod;

[0036] 10. Limit block; 11. Insulating sleeve; 12. Contact piece; 1201. Convex ring; 13. Mounting frame. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Embodiment 1:

[0039] As attached Figure 1 To Attachment Figure 3 As shown, a temperature and current detection device for a rail transit high-voltage connector includes a connector 1, a shielding tube 2 is fixedly installed on one side of the connector 1, a contact 12 is arranged inside the shielding tube 2, a cable 4 is sleeved inside the contact 12, and a current transformer 5 is fixedly sleeved on the outer wall of the shielding tube 2;

[0040] In the above technical solution, the current transformer 5 is fixedly sleeved on the outer wall of the shielding tube 2. The current transformer 5 is used to detect the magnitude of the current in the cable 4. At the same time, the current transformer 5 is externally connected to a wireless communication module [not shown in the figure]. The current transformer 5 transmits the induced current signal to the wireless communication module, and the wireless communication module transmits the induced current signal to the application end.

[0041] The upper surface of the current transformer 5 is fixedly connected to a mounting base 6, and a manual adjustment mechanism 8 is fixedly installed on the outer wall of the mounting base 6. The output end of the manual adjustment mechanism 8 is fixedly connected to a temperature detection mechanism 7. The manual adjustment mechanism 8 is used to adjust the lifting position of the temperature detection mechanism 7. The bottom detection end of the temperature detection mechanism 7 passes through the shielding tube 2 and rests on the contact piece 12. The temperature detection mechanism 7 is used to detect the temperature conducted by the cable 4 on the contact piece 12.

[0042] As attached Figure 1 To Attachment Figure 4 As shown, one side of the mounting seat 6 is fixedly connected to the limit block 10, and a guide hole is opened on the outer wall of the limit block 10, and the top of the temperature detection mechanism 7 is slidably inserted in the guide hole; the temperature detection mechanism 7 includes a sleeve 701, the top of the sleeve 701 is slidably inserted in the guide hole of the outer wall of the limit block 10, and the other end of the sleeve 701 passes through and extends to the inside of the shielding tube 2, and the extended end of the sleeve 701 is fixedly connected to a temperature sensor 702, and the detection end of the temperature sensor 702 contacts the outer wall of the contact piece 12, and the temperature sensor 702 is connected to a wire 703 that passes through the sleeve 701 to provide power support for the temperature sensor 702, and the outer wall of the sleeve 701 is fixedly connected to a limit disk 704, and one side of the limit disk 704 is fixedly connected to a connecting block 705, and the connecting block 705 is connected to the output end of the manual adjustment mechanism 8, and the outer wall of the sleeve 701 is sleeved with a spring 706, and the bottom of the spring 706 contacts the limit disk 704, and the top of the spring 706 contacts the outer wall of the limit block 10.

[0043] In the above technical solution, the manual adjustment mechanism 8 drives the sleeve 701 to move downward through the connecting block 705 and the limit plate 704, and the sleeve 701 drives the temperature sensor 702 to move downward, and the temperature sensor 702 contacts the outer wall of the contact member 12. The temperature sensor 702 is used to detect the temperature conducted by the cable 4 on the contact member 12;

[0044] At the same time, the temperature sensor 702 is connected to an external wireless communication module [not shown in the figure], the temperature sensor 702 transmits the detected temperature signal to the wireless communication module, and the wireless communication module transmits the detected temperature signal to the application end;

[0045] In addition, the limit plate 704 arranged on the sleeve 701 is subjected to the pressure of the spring 706, so that when the entire connector shakes arbitrarily, the spring 706 will always generate a downward thrust on the sleeve 701, thereby ensuring that when the temperature sensor 702 detects the temperature of the contact piece 12, the detection end of the temperature sensor 702 can always be in contact with the contact piece 12, thereby avoiding vibration that affects the position of the temperature sensor 702, resulting in poor contact between the detection end of the temperature sensor 702 and the contact piece 12 and causing unstable detection, thereby improving the temperature detection accuracy and stability.

[0046] As attached Figure 4 As shown, the manual adjustment mechanism 8 includes a screw rod 801, the bottom end of which is rotatably connected to the outer wall of the mounting seat 6, the outer wall of the mounting seat 6 is fixedly connected to a guide rod 802, the outer wall of the screw rod 801 is threadedly connected to a slider 803, the slider 803 is slidably connected to the guide rod 802, a slot is provided on one side of the slider 803, a support rod 804 is fixedly connected in the slot, the connecting block 705 is slidably sleeved with the support rod 804, the top of the mounting seat 6 is rotatably connected to an opening and closing control component 805, and the bottom end of the opening and closing control component 805 is movably connected to the top of the screw rod 801.

[0047] In the above technical solution, during manual adjustment, the opening and closing control component 805 is manually rotated. Since the bottom end of the opening and closing control component 805 is movably connected to the top end of the screw rod 801, the opening and closing control component 805 can drive the screw rod 801 to rotate, the screw rod 801 drives the slider 803 to move downward, and the slider 803 drives the connecting block 705 to move downward.

[0048] As attached Figure 7 As shown, the opening and closing control component 805 includes a knob 8051 and a lower rotating rod 8052. The lower surface of the knob 8051 is fixedly connected to the lower rotating rod 8052, and the top of the mounting seat 6 is provided with a through hole matching the lower rotating rod 8052; the lower surface of the lower rotating rod 8052 is provided with a lower square groove 8054, and the top of the screw rod 801 is fixedly connected to a first square plug rod 8011, and the first square plug rod 8011 is inserted into the lower rotating rod 8052 on the lower surface of the knob 8051.

[0049] In the above technical solution, the knob 8051 is manually rotated, the knob 8051 drives the lower rotating rod 8052 to rotate, and the lower rotating rod 8052 drives the screw rod 801 to rotate through the first square plug rod 8011.

[0050] As attached Figure 3 As shown, a through hole is provided on the shielding tube 2 , and a plurality of annular grooves are provided on the inner wall of the through hole. An insulating sleeve 11 is installed in the through hole, and an annular groove is provided on the outside of the insulating sleeve 11 for snap-fitting. The insulating sleeve 11 is slidably sleeved with the sleeve 701 .

[0051] In the above technical solution, the installation of the insulating sleeve 11 can improve the sealing performance of the installation point of the sleeve 701, while avoiding leakage and improving safety. The insulating sleeve 11 can be fixedly connected to the shielding tube 2 by snap-fitting with the annular groove.

[0052] As attached Figure 1 As shown, the current transformer 5 is an open-type current transformer, which is convenient for installation and disassembly. The size of the current transformer 5 matches the size of the shielding tube 2. The model of the current transformer 5 is JXKCT38M.

[0053] In the above technical solution, the current transformer 5 is used to detect the current of the cable 4. At the same time, the current transformer 5 is externally connected to a wireless communication module. The current transformer 5 transmits the induced current signal to the wireless communication module, and the wireless communication module transmits the induced current signal to the application end.

[0054] As attached Figure 8 As shown, a limiting groove 201 is provided on the inner wall of the shielding tube 2, a convex ring 1201 is provided at one end of the contact 12, the convex ring 1201 is located in the limiting groove 201, an internal thread is provided at one end of the shielding tube 2, and a tail plug 3 is threadedly connected to the end of the shielding tube 2 located at the internal thread, the tail plug 3 is against the end of the contact 12, a through hole is provided on the tail plug 3, and the cable 4 extends to the other end of the tail plug 3 through the through hole on the tail plug 3;

[0055] In the above technical solution, the tail plug 3 is used to fix the contact 12 . When the contact 12 needs to be removed, the tail plug 3 can be rotated to pull the contact 12 out of the shielding tube 2 .

[0056] The specific usage and function of this embodiment are as follows:

[0057] When the present invention is used, the current transformer 5 is fixedly sleeved on the outer wall of the shielding tube 2, and the current transformer 5 is used to detect the magnitude of the current of the cable 4. At the same time, the current transformer 5 is externally connected to the wireless communication module, and the current transformer 5 transmits the induced current signal to the wireless communication module, and the wireless communication module transmits the induced current signal to the application end;

[0058] During manual adjustment, the knob 8051 is manually rotated, and the knob 8051 drives the lower rotating rod 8052 to rotate. The lower rotating rod 8052 drives the screw rod 801 to rotate through the first square plug rod 8011. The screw rod 801 drives the slider 803 to move downward. The slider 803 drives the sleeve 701 to move downward through the connecting block 705 and the limit plate 704. The sleeve 701 drives the temperature sensor 702 to move downward. The temperature sensor 702 contacts the outer wall of the contact member 12. The temperature sensor 702 is used to detect the temperature of the contact member 12 conducted by the cable 4.

[0059] At the same time, the temperature sensor 702 is connected to an external wireless communication module, and the temperature sensor 702 transmits the detected temperature signal to the wireless communication module, and the wireless communication module transmits the detected temperature signal to the application end;

[0060] In addition, the limit plate 704 arranged on the sleeve 701 is subjected to the pressure of the spring 706, so that when the entire connector shakes arbitrarily, the spring 706 will always generate a downward thrust on the sleeve 701, thereby ensuring that when the temperature sensor 702 detects the temperature of the contact piece 12, the detection end of the temperature sensor 702 can always be in contact with the contact piece 12, thereby avoiding vibration that affects the position of the temperature sensor 702, resulting in poor contact between the detection end of the temperature sensor 702 and the contact piece 12 and causing unstable detection, thereby improving the temperature detection accuracy and stability.

[0061] It is worth mentioning that when the sleeve 701 rises, the temperature sensor 702 fixed at the bottom rises as well, thereby disconnecting the detection of the contact member 12, making the adjustment convenient and quick;

[0062] For the above structure and process, please refer to Figure 1-4 and Figure 7 .

[0063] It is worth mentioning that the current transformer 5 in this case can also be a clamp, which is fixedly sleeved on the outer wall of the shielding tube with bolts. At this time, the clamp is used to fix the mounting seat, thereby realizing the installation of the temperature detection mechanism 7. At this time, the device can only realize the temperature detection of the cable.

[0064] Embodiment 2:

[0065] A temperature and current detection device for a rail transit high-voltage connector, the other features of which are the same as those of the second embodiment, except that: Figure 1 and Figure 5-7 As shown:

[0066] A mounting frame 13 is fixedly mounted on the top of the mounting seat 6 , and an automatic adjustment mechanism 9 is fixedly mounted on the outer wall of the mounting frame 13 . The output end of the automatic adjustment mechanism 9 is movably connected to the top of the opening and closing control component 805 .

[0067] In the above technical solution, the mounting frame 13 is used to fix the automatic adjustment mechanism 9, which can drive the opening and closing control component 805 to rotate, and the opening and closing control component 805 can drive the screw rod 801 to rotate, thereby adjusting the vertical position of the temperature sensor 702.

[0068] The automatic adjustment mechanism 9 includes a motor 901, the output end of the motor 901 is fixedly connected to a second square plug rod 902, the upper surface of the knob 8051 is fixedly connected to an upper rotating rod 8053, the upper surface of the upper rotating rod 8053 is provided with an upper square groove 8055, and the second square plug rod 902 is inserted into the upper square groove 8055 on the upper surface of the upper rotating rod 8053.

[0069] In the above technical solution, the motor 901 is electrically connected to the external control module, and is connected to the control unit in the electric vehicle through the wireless communication module. The personnel in the vehicle can directly control the control module remotely, thereby controlling the operation and stop of the motor 901. When the motor 901 is running, the motor 901 drives the second square plug 902 to rotate, and the second square plug 902 drives the lower rotating rod 8052 to rotate through the upper rotating rod 8053, and the lower rotating rod 8052 drives the screw rod 801 to rotate through the first square plug 8011, and the screw rod 801 drives the slider 803 to move downward, and the slider 803 drives the sleeve 701 to move vertically through the connecting block 705 and the limit plate 704, thereby controlling the position of the temperature sensor 702, so as to facilitate the remote control of the temperature sensor 702 to start and stop detecting the temperature conducted by the cable 4 in the contact piece 12, thereby further improving the convenience of temperature detection.

[0070] It is worth mentioning that the motor 901, temperature sensor 702, control module and wireless communication module in this case can adopt conventional products in the prior art, and all of them are external power supplies. They are mature technologies in this field and have been fully disclosed. For example, the wireless communication module can adopt the MC39 I module of Simons, and the user can insert the mobile phone SIM card into the GSM network provided by the card slot to enable the MC39 I module to transmit data; for example, the control module can adopt the MSC1211Y5 microprocessor of Texas Instruments [TI] of the United States; therefore, it will not be repeated in the specification.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature and current detection device for a rail transit high-voltage connector, comprising a connector (1), characterized in that: A shielding tube (2) is fixedly mounted on one side of the connector (1), a contact piece (12) is arranged inside the shielding tube (2), and a cable (4) is sleeved inside the contact piece (12); A current transformer (5) is fixedly sleeved on the outer wall of the shielding tube (2); a mounting seat (6) is fixedly connected to the upper surface of the current transformer (5); a manual adjustment mechanism (8) is fixedly installed on the outer wall of the mounting seat (6); a temperature detection mechanism (7) is fixedly connected to the output end of the manual adjustment mechanism (8); the manual adjustment mechanism (8) is used to adjust the lifting position of the temperature detection mechanism (7); the bottom detection end of the temperature detection mechanism (7) passes through the shielding tube (2) and abuts against the contact piece (12); the temperature detection mechanism (7) is used to detect the temperature on the contact piece (12) conducted by the cable (4).

2. A temperature and current detection device for a rail transit high-voltage connector according to claim 1, characterized in that: A limiting block (10) is fixedly connected to one side of the mounting seat (6); a guide hole is provided on the outer wall of the limiting block (10); and the top end of the temperature detection mechanism (7) is slidably inserted into the guide hole.

3. A temperature and current detection device for a rail transit high-voltage connector according to claim 2, characterized in that: The temperature detection mechanism (7) comprises a sleeve (701), the top end of the sleeve (701) is slidably inserted into the guide hole on the outer wall of the limit block (10), the other end of the sleeve (701) penetrates and extends into the interior of the shielding tube (2), the extended end of the sleeve (701) is fixedly connected to a temperature sensor (702), the detection end of the temperature sensor (702) is in contact with the outer wall of the contact piece (12), and the temperature sensor (702) is connected to a temperature sensor that penetrates through the sleeve (701). The device (702) provides a wire (703) for power support, the outer wall of the sleeve (701) is fixedly connected to a limit plate (704), one side of the limit plate (704) is fixedly connected to a connecting block (705), the connecting block (705) is connected to the output end of the manual adjustment mechanism (8), the outer wall of the sleeve (701) is sleeved with a spring (706), the bottom of the spring (706) is in contact with the limit plate (704), and the top of the spring (706) is in contact with the outer wall of the limit block (10).

4. A temperature and current detection device for a rail transit high-voltage connector according to claim 3, characterized in that: The manual adjustment mechanism (8) comprises a screw rod (801), the bottom end of the screw rod (801) is rotatably connected to the outer wall of the mounting seat (6), the outer wall of the mounting seat (6) is fixedly connected to a guide rod (802), the outer wall of the screw rod (801) is threadedly connected to a slider (803), the slider (803) is slidably connected to the guide rod (802), a notch is provided on one side of the slider (803), a support rod (804) is fixedly connected in the notch, the connecting block (705) is slidably sleeved with the support rod (804), the top of the mounting seat (6) is rotatably connected to an opening and closing control component (805), and the bottom end of the opening and closing control component (805) is movably connected to the top of the screw rod (801).

5. A temperature and current detection device for a rail transit high-voltage connector according to claim 4, characterized in that: The opening and closing control assembly (805) comprises a knob (8051) and a lower rotating rod (8052); the lower surface of the knob (8051) is fixedly connected to the lower rotating rod (8052); and the top of the mounting seat (6) is provided with a through hole matching the lower rotating rod (8052); A lower square groove (8054) is provided on the lower surface of the lower rotating rod (8052); a first square plug rod (8011) is fixedly connected to the top of the screw rod (801); and the first square plug rod (8011) is inserted into the lower rotating rod (8052) on the lower surface of the knob (8051).

6. A temperature and current detection device for a rail transit high-voltage connector according to claim 5, characterized in that: A mounting frame (13) is fixedly mounted on the top of the mounting seat (6), an automatic adjustment mechanism (9) is fixedly mounted on the outer wall of the mounting frame (13), and an output end of the automatic adjustment mechanism (9) is movably connected to the top of the opening and closing control component (805).

7. A temperature and current detection device for a rail transit high-voltage connector according to claim 6, characterized in that: The automatic adjustment mechanism (9) comprises a motor (901), the output end of the motor (901) is fixedly connected to a second square plug rod (902), the upper surface of the knob (8051) is fixedly connected to an upper rotating rod (8053), the upper surface of the upper rotating rod (8053) is provided with an upper square groove (8055), and the second square plug rod (902) is inserted into the upper square groove (8055) on the upper surface of the upper rotating rod (8053).

8. A temperature and current detection device for a rail transit high voltage connector according to claim 3, characterized in that: The shielding tube (2) is provided with a through hole, the inner wall of the through hole is provided with a plurality of annular grooves, an insulating sleeve (11) is installed in the through hole, an annular groove is provided on the outside of the insulating sleeve (11) for snap-fitting, and the insulating sleeve (11) is slidably sleeved with the sleeve (701).

9. A temperature and current detection device for a rail transit high voltage connector according to claim 1, characterized in that: The current transformer (5) is an open-type current transformer.

10. A temperature and current detection device for a rail transit high voltage connector according to claim 1, characterized in that: A limiting groove (201) is provided on the inner wall of the shielding tube (2); a convex ring (1201) is provided at one end of the contact piece (12); the convex ring (1201) is located in the limiting groove (201); an internal thread is provided at one end of the shielding tube (2); a tail plug (3) is threadedly connected to the end of the shielding tube (2) located at the internal thread; the tail plug (3) abuts against the end of the contact piece (12).

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