An NTC temperature sensor suitable for a new energy automobile driving motor

Abstract

The application relates to the technical field of sensors and discloses an NTC temperature sensor suitable for a new energy automobile driving motor, which comprises a cylinder, one end of the cylinder is provided with a spherical surface seal, the other end of the cylinder is provided with an opening, an internal wall of the spherical surface end of the cylinder is fixedly connected with a thermistor, one side of the thermistor away from the spherical surface end of the cylinder is electrically connected with a connecting wire, and one end of the connecting wire away from the thermistor penetrates through the opening end of the cylinder and extends to the outside of the cylinder; a telescopic part, the telescopic part comprises a fixed ring body, and the circumferential outer surface of the fixed ring body is fixedly connected with the circumferential inner surface of the cylinder. The NTC temperature sensor can effectively solve the problem that the continuous vibration of the driving motor easily causes the loosening between the NTC temperature sensor and a stator coil, thereby affecting the measurement effect of the NTC temperature sensor on the stator winding of the driving motor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sensors, in particular to an NTC temperature sensor suitable for a new energy automobile driving motor. BACKGROUND

[0002] The NTC temperature sensor is a temperature sensor using an NTC thermistor as a temperature sensitive element, which is usually composed of an NTC thermistor, a probe, an electronic extension line and a terminal connector. In the working process of the new energy automobile driving motor, the NTC temperature sensor is usually used to measure the temperature of the stator winding of the driving motor. The probe part of the NTC temperature sensor is inserted into the inside of the tight stator coil, so as to ensure that the sensor is in close contact with the stator winding, and then the real-time monitoring of the temperature of the stator winding is realized.

[0003] At present, in the process of measuring the temperature of the stator winding of the driving motor by using the NTC temperature sensor, the probe part of the sensor is inserted into the inside of the tight stator coil. Under the clamping force of the stator coil, the sensor is in close contact with the stator winding. However, in the running process of the electric automobile, the motor stator and the cylinder vibrate under the action of electromagnetic force wave. The continuous vibration of the driving motor can easily cause the loosening between the NTC temperature sensor and the stator coil, thereby affecting the measurement effect of the NTC temperature sensor on the stator winding of the driving motor. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the present application provides an NTC temperature sensor suitable for a new energy automobile driving motor, which can effectively solve the problem that the continuous vibration of the driving motor can easily cause the loosening between the NTC temperature sensor and the stator coil, thereby affecting the measurement effect of the NTC temperature sensor on the stator winding of the driving motor.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme:

[0006] The present application provides an NTC temperature sensor suitable for a new energy automobile driving motor, which comprises:

[0007] The cylinder is provided with a spherical surface at one end and an opening at the other end. The inner wall of the spherical surface end is fixedly connected with a thermistor. The side of the thermistor away from the spherical surface end is electrically connected with a connecting lead wire. The end of the connecting lead wire away from the thermistor penetrates through the opening end of the cylinder and extends to the outside of the cylinder.

[0008] The telescopic part comprises a fixed ring body, the circumferential outer surface of which is fixedly connected with the circumferential inner surface of the cylinder body, the telescopic patch is slidably connected with the telescopic groove on the circumferential outer surface of the fixed ring body, the circumferential inner surface of the cylinder body is rotatably connected with the rotating ring body, the rotating ring body is rotatably connected with the push rod through the triangular block on the circumferential inner surface of the rotating ring body, and the end, away from the triangular block, of the push rod is rotatably connected with the telescopic patch;

[0009] The driving part comprises a rotating tooth ring, the side surface of the rotating tooth ring is rotatably connected with the open end of the cylinder body, the rotating tooth ring is controlled to rotate around the axis of the cylinder body to drive the rotating ring body to rotate half a circle around the axis of the cylinder body, so as to drive the telescopic patch to extend outward along the telescopic opening arranged on the circumferential surface of the cylinder body.

[0010] Further, the circumferential inner surface of the fixed ring body is fixedly connected with the thread holding cylinder, and the end, away from the thermistor, of the connecting wire penetrates through the fixed ring body through the thread holding cylinder.

[0011] Further, the telescopic part is provided with a plurality of telescopic parts which are equidistantly distributed on the circumferential inner surface of the cylinder body, the extension directions of the plurality of telescopic patches are different, and the two adjacent rotating ring bodies are fixedly connected through the connecting ring rod.

[0012] Further, the circumferential inner surface of the cylinder body is fixedly connected with a threaded cylinder, the circumferential inner surface of the threaded cylinder is rotatably connected with a rotating cylinder, the end, close to the rotating tooth ring, of the rotating cylinder is fixedly connected with the side surface of the rotating tooth ring, the end, away from the rotating tooth ring, of the rotating cylinder is fixedly connected with a U-shaped insert, the side, close to the U-shaped insert, of the rotating ring body is fixedly connected with a telescopic element, the circumferential inner surface of the cylinder body is fixedly connected with a spiral slide rail, the telescopic end of the telescopic element is rotatably connected with a first roller and a second roller, and the second roller is slidably connected in the interior of the spiral slide rail.

[0013] Further, the circumferential inner surface of the rotating cylinder is slidably connected with a guide ring, the circumferential outer surface of the guide ring is rotatably connected with a convex rod, and the end, away from the guide ring, of the convex rod is slidably connected with a threaded groove arranged on the circumferential surface of the threaded cylinder.

[0014] Further, the circumferential surface of the rotating cylinder is provided with a horizontal groove, and the convex rod is slidably connected with the rotating cylinder through the horizontal groove.

[0015] Further, the circumferential outer surface of the cylinder body is fixedly connected with a conical ring, the conical ring is fixedly connected with a connecting circular block through the connecting block arranged on the side surface of the conical ring, the side, close to the thermistor, of the connecting circular block is fixedly connected with a wire winding rod, the end, close to the thermistor, of the wire winding rod is fixedly connected with a circular block, and the end, away from the thermistor, of the connecting wire penetrates through the circular block and the connecting circular block in sequence.

[0016] Compared with the prior art, the technical scheme provided by the present application has the following beneficial effects:

[0017] The present application is provided with a telescopic part. After the cylinder is inserted into the inside of the tightened stator coil, the position of the cylinder and the thermistor inside the stator coil is initially fixed under the clamping force of the coil. By driving the rotating tooth ring to drive the four rotating ring bodies to rotate half a circle around the axis of the cylinder, the four rotating ring bodies push the four telescopic patches into the inside of the stator coil along the radial direction of the cylinder (as shown in Figure 12 The position of the cylinder and the thermistor inside the stator coil is secondarily fixed under the resistance of the stator coil, thereby improving the connection strength between the cylinder and the stator coil, avoiding loosening between the cylinder and the stator coil, and further improving the measurement effect of the thermistor on the stator winding of the driving motor. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the separation structure of the cylinder of the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the separation structure of the threaded cylinder of the embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the local explosion of the cylinder of the embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of the structure of the fixed ring body of the embodiment of the present application.

[0024] Figure 6 It is a schematic diagram of the separation structure of the fixed ring body and the rotating ring body of the embodiment of the present application.

[0025] Figure 7 It is a schematic diagram of the structure of the thread guide of the embodiment of the present application.

[0026] Figure 8 It is a schematic diagram of the structure of the spiral slide rail of the embodiment of the present application.

[0027] Figure 9It is a structural schematic view of the U-shaped insert of the embodiment of the present application.

[0028] Figure 10 It is a schematic view of the separation structure of the rotating drum of the embodiment of the present application.

[0029] Figure 11 It is a structural schematic view of the guide ring of the embodiment of the present application.

[0030] Figure 12 It is a schematic view of the extended state of the telescopic patch of the embodiment of the present application.

[0031] The numbers in the figure respectively represent:

[0032] 1, drum body; 11, thermistor; 12, connecting wire; 13, conical ring; 131, connecting circular block; 132, winding rod; 133, circular block;

[0033] 2, telescopic part; 21, fixed ring body; 211, telescopic groove; 212, thread clamping drum; 22, telescopic patch; 221, telescopic opening; 23, rotating ring body; 231, connecting ring rod; 24, triangular block; 25, push rod;

[0034] 3, driving part; 31, rotating tooth ring; 32, rotating drum; 321, guide ring; 322, protruding rod; 3221, horizontal groove; 323, threaded cylinder;

[0035] 33, U-shaped insert; 34, telescopic element; 341, first roller; 342, second roller; 35, spiral slide rail. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] The present application will be further described below in combination with the embodiments.

[0038] Embodiment:

[0039] Please refer to Figures 1-12 The present application provides a technical scheme: a NTC temperature sensor suitable for a new energy automobile driving motor, comprising:

[0040] The inner wall of the spherical end of the barrel 1 is fixedly connected with a thermistor 11, one side of the thermistor 11 away from the spherical end of the barrel 1 is electrically connected with a connecting wire 12, and one end of the connecting wire 12 away from the thermistor 11 penetrates through the open end of the barrel 1 and extends to the outside of the barrel 1.

[0041] The telescopic part 2 comprises a fixed ring body 21, the circumferential outer surface of the fixed ring body 21 is fixedly connected with the circumferential inner surface of the barrel 1, the fixed ring body 21 is slidingly connected with a telescopic patch 22 by arranging a telescopic groove 211 on the circumferential outer surface of the fixed ring body 21, the circumferential inner surface of the barrel 1 is rotatably connected with a rotating ring body 23, the rotating ring body 23 is rotatably connected with a push rod 25 by arranging a triangular block 24 on the circumferential inner surface of the rotating ring body 23, and one end of the push rod 25 away from the triangular block 24 is rotatably connected with the telescopic patch 22.

[0042] The driving part 3 comprises a rotating tooth ring 31, the side surface of the rotating tooth ring 31 is rotatably connected with the open end of the barrel 1, the rotating tooth ring 31 is controlled to rotate around the axis of the barrel 1 to drive the rotating ring body 23 to rotate half a circle around the axis of the barrel 1, so as to drive the telescopic patch 22 to extend outward along a telescopic opening 221 arranged on the circumferential surface of the barrel 1.

[0043] The circumferential inner surface of the fixed ring body 21 is fixedly connected with a thread cylinder 212, and one end of the connecting wire 12 away from the thermistor 11 penetrates through the fixed ring body 21 through the thread cylinder 212.

[0044] The telescopic part 2 is provided with a plurality of telescopic parts 2, and the plurality of telescopic parts 2 are equidistantly distributed on the circumferential inner surface of the barrel 1, the extension directions of the plurality of telescopic patches 22 are different, and two adjacent rotating ring bodies 23 are fixedly connected through a connecting ring rod 231.

[0045] The circumferential inner surface of the barrel 1 is fixedly connected with a threaded cylinder 323, the circumferential inner surface of the threaded cylinder 323 is rotatably connected with a rotating cylinder 32, one end of the rotating cylinder 32 close to the rotating tooth ring 31 is fixedly connected with the side surface of the rotating tooth ring 31, one end of the rotating cylinder 32 away from the rotating tooth ring 31 is fixedly connected with a U-shaped plug 33, one side of the rotating ring body 23 close to the U-shaped plug 33 is fixedly connected with a telescopic element 34, the circumferential inner surface of the barrel 1 is fixedly connected with a spiral slide rail 35, the telescopic end of the telescopic element 34 is rotatably connected with a first roller 341 and a second roller 342, and the second roller 342 is slidingly connected in the inside of the spiral slide rail 35.

[0046] The circumferential inner surface of the rotating cylinder 32 is slidingly connected with a guide ring 321, the circumferential outer surface of the guide ring 321 is rotatably connected with a convex rod 322, and one end of the convex rod 322 away from the guide ring 321 is slidingly connected with a threaded groove arranged on the circumferential surface of the threaded cylinder 323.

[0047] The circumferential surface of the rotating drum 32 is provided with a transverse groove 3221, and the convex rod 322 is slidably connected with the rotating drum 32 through the transverse groove 3221.

[0048] The circumferential outer surface of the cylinder body 1 is fixedly connected with a conical ring 13, the conical ring 13 is fixedly connected with a connecting circular block 131 through the connecting block arranged on the side surface of the conical ring 13, the connecting circular block 131 is fixedly connected with a winding rod 132 on the side close to the thermistor 11, the winding rod 132 is fixedly connected with a circular block 133 on the end close to the thermistor 11, and the end of the connecting wire 12 away from the thermistor 11 penetrates through the circular block 133 and the connecting circular block 131 in sequence.

[0049] The two fixing processes between the cylinder body 1 and the stator coil:

[0050] In practical applications, by controlling the rotation of the cylinder 1 and inserting it into the taut stator coil, the spherical end of the cylinder 1 expands, facilitating the rapid insertion of the thermistor 11 into the taut coil. After the thermistor 11 is inserted into the taut stator coil, the clamping force of the coil initially fixes the positions of the cylinder 1 and the thermistor 11 inside the stator coil. Rotating the rotating gear ring 31 around the axis of the cylinder 1 at its open end causes the rotating cylinder 32 on its side to rotate. The rotating cylinder 32 rotates synchronously around the axis of the cylinder 1, causing four U-shaped inserts 33 at one end to rotate synchronously around the axis of the cylinder 1. The four rotating U-shaped inserts 33 push four first rollers 341 to rotate around the axis of the cylinder 1 through their vertical ends. The four first rollers 341 drive the telescopic ends of four telescopic elements 34 to rotate around the axis of the cylinder 1. The telescopic ends of the four telescopic elements 34 drive the second rollers 342 on their outer circumference to rotate around the axis of the cylinder 1, so that all four second rollers 342 slide along the spiral slide rail 35. Under the guidance of 5, the telescopic ends of the four telescopic elements 34 retract inward until the telescopic ends of the four telescopic elements 34 drive the first rollers 341 to retract a certain distance towards the rotating ring 23, so that the four first rollers 341 slide into contact with the arc-shaped ends of the four U-shaped inserts 33. At this time, the four telescopic elements 34 drive the rotating ring 23 connected to them to rotate half a revolution around the axis of the cylinder 1. Under the connecting action of the connecting ring rod 231, the rotating ring 23 connected to the telescopic elements 34 drives the other three through the connecting ring rod 231. The rotating rings 23 rotate half a revolution around the axis of the cylinder 1. The four rotating rings 23 drive the triangular blocks 24 on their inner circumferences to rotate half a revolution around the axis of the cylinder 1. The rotating triangular blocks 24 drive one end of the push rod 25 to rotate half a revolution around the axis of the cylinder 1. Under the limiting action of the telescopic groove 211, the push rod 25 pushes the telescopic patch 22 along the telescopic groove 211 towards the telescopic opening 221 through its end near the telescopic patch 22. All four telescopic patches 22 pass through the telescopic opening 221 closest to them and extend to the outside of the cylinder 1 (e.g., Figure 12 As shown, four telescopic patches 22 are inserted into the stator coil along the radial direction of the cylinder 1. Under the obstruction of the stator coil, the cylinder 1 is prevented from sliding along its axial direction inside the stator coil. This provides secondary fixation of the positions of the cylinder 1 and the thermistor 11 inside the stator coil, thereby improving the connection strength between the cylinder 1 and the stator coil, preventing loosening between the cylinder 1 and the stator coil, and thus improving the measurement effect of the thermistor 11 on the stator winding of the drive motor.

[0051] Automatic winding process of connecting wire 12:

[0052] In actual application, in the process of rotating drum 32 around the axis of cylinder body 1, drum 32 drives two guide rings 321 on the circumferential inner surface thereof to rotate around the axis of cylinder body 1, two guide rings 321 drive convex rods 322 on the circumferential outer surface thereof to rotate around the axis of cylinder body 1, under the guidance of thread grooves on the circumferential surface of threaded cylinder 323, the ends of two convex rods 322 away from each other slide along the thread grooves, and two convex rods 322 drive two guide rings 321 to slide along transverse grooves 3221 towards rotating tooth ring 31, under the action of the spiral movement of two guide rings 321, two guide rings 321 drive connecting wires 12 inside thereof to be uniformly wound on the circumferential outer surface of winding rod 132, so that the winding of connecting wires 12 is processed, and the length of connecting wires 12 outside cylinder body 1 is adjusted in an appropriate amount, so that the length of connecting wires 12 is prevented from being too long to be entangled with other connecting wires, and the use effect of the NTC temperature sensor is improved.

[0053] In summary, by adopting telescopic part 2 and driving part 3, the following advantages are achieved:

[0054] Advantage one, after cylinder body 1 is inserted into the inside of the tightened stator coil, the positions of cylinder body 1 and thermistor 11 inside the stator coil are fixed for the first time under the clamping force of the coil, by driving rotating tooth ring 31 to drive four rotating ring bodies 23 to rotate half a circle around the axis of cylinder body 1, four rotating ring bodies 23 push four telescopic patches 22 to be inserted into the inside of the stator coil along the radial direction of cylinder body 1 through triangular blocks 24 and push rods 25, under the obstruction of the stator coil, cylinder body 1 is prevented from sliding in the axial direction inside the stator coil, the positions of cylinder body 1 and thermistor 11 inside the stator coil are fixed for the second time, so that the connection strength between cylinder body 1 and the stator coil is improved, the loosening between cylinder body 1 and the stator coil is avoided, and the measurement effect of thermistor 11 on the stator winding of the driving motor is improved.

[0055] Advantage two, by providing wire clamping cylinder 212, connecting wires 12 are limited, in the process of rotating ring body 23 driving triangular block 24 to rotate, connecting wires 12 are prevented from resisting triangular block 24 and push rod 25, and triangular block 24 and push rod 25 are provided with a certain rotating space.

[0056] Advantage three, by pushing four telescopic elements 34 and rotating ring body 23 around the axis of cylinder body 1 through four U-shaped inserts 33, after U-shaped inserts 33 push telescopic elements 34 and rotating ring body 23 to rotate half a circle around the axis of cylinder body 1 through the vertical ends thereof, four U-shaped inserts 33 continue to rotate by a certain angle, so that U-shaped inserts 33 are slidably connected with first roller 341 through the arc-shaped ends thereof, and the positions of four telescopic elements 34 and four rotating ring bodies 23 are fixed under the limiting action of spiral slide rail 35, so that four telescopic patches 22 remain in the extended state (such as Figure 12Prevent the four telescopic patches 22 from sliding along the telescopic grooves 211 to the inside of the barrel 1 under the continuous vibration of the driving motor, and further ensure the connection strength between the barrel 1 and the stator coil.

[0057] Advantage four, in the process of rotating the rotating drum 32 around the axis of the barrel 1, the rotating drum 32 drives the two guide rings 321 to slide along the spiral slide rails 35 by means of the transverse grooves 3221 on the circumferential surface of the rotating drum 32, so that the two guide rings 321 drive the connection wires 12 inside them to be uniformly wound on the circumferential outer surface of the winding rod 132, thereby performing take-up processing on the connection wires 12, and further appropriately adjusting the length of the connection wires 12 outside the barrel 1, preventing the length of the connection wires 12 from being too long to entangle with other connection wires, and improving the use effect of the NTC temperature sensor.

[0058] Advantage five, the positions of the connecting circular block 131, the winding rod 132 and the circular block 133 on the barrel 1 are fixed by setting the conical ring 13, and the circular block 133 limits the position of the connection wires 12 inside the barrel 1, thereby facilitating the two guide rings 321 to pull the two connection wires 12 to be uniformly wound on the circumferential outer surface of the winding rod 132.

[0059] Advantage six, after the rotating drum 32 drives the telescopic elements 34 and the rotating ring body 23 to rotate half a circle around the axis of the barrel 1 through the four U-shaped inserts 33, the rotating drum 32 continues to rotate to control the two guide rings 321 to pull the two connection wires 12 to be wound on the circumferential outer surface of the winding rod 132, and after the arc-shaped end of the U-shaped insert 33 separates from the first roller 341 (releases the limitation of the first roller 341 and the four telescopic patches 22) while the rotating drum 32 continues to rotate, even if the telescopic patches 22 are affected by the vibration of the driving motor and slide a short distance along the telescopic grooves 211 to the inside of the barrel 1 (the four first rollers 341 slide a short distance along the vertical ends of the U-shaped inserts 33 to the rotating drum 32), the rotating drum 32 can again drive the four telescopic elements 34 and the rotating ring body 23 to rotate back by means of the vertical ends of the rotating drum 32 (to ensure that the four telescopic patches 22 are always in the best extended state).

[0060] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. An NTC temperature sensor suitable for a new energy vehicle driving motor, characterized in that, The utility model relates to a kind of telescopic thermos bottle, including: Cylinder (1), one end of the cylinder (1) is spherical end, the other end of the cylinder (1) is open, the inner wall of the spherical end of the cylinder (1) is fixedly connected with thermistor (11), the side of the thermistor (11) away from the spherical end of the cylinder (1) is electrically connected with connecting wire (12), the end of the connecting wire (12) away from the thermistor (11) penetrates the open end of the cylinder (1) and extends to the outside of the cylinder (1); Telescopic part (2), the circumferential outer surface of the fixed ring body (21) is fixedly connected with the circumferential inner surface of the cylinder (1), the telescopic slot (211) on the circumferential outer surface of the fixed ring body (21) is slidably connected with telescopic patch (22), the circumferential inner surface of the cylinder (1) is rotatably connected with rotating ring body (23), the rotating ring body (23) is rotatably connected with push rod (25) by setting the triangular block (24) on the circumferential inner surface, the end of the push rod (25) away from the triangular block (24) is rotatably connected with telescopic patch (22); Driving part (3), the side of the rotating tooth ring (31) is rotatably connected with the open end of the cylinder (1), by controlling rotating tooth ring (31) rotates around the axis of the cylinder (1) to drive rotating ring body (23) rotates around the axis of the cylinder (1) half circle, to drive telescopic patch (22) to extend outward along telescopic mouth (221) arranged on the circumferential surface of the cylinder (1); The circumferential inner surface of the cylinder (1) is fixedly connected with threaded cylinder (323), the circumferential inner surface of the threaded cylinder (323) is rotatably connected with rotating cylinder (32), the end of the rotating cylinder (32) close to the rotating tooth ring (31) is fixedly connected with the side of the rotating tooth ring (31); The circumferential inner surface of the rotating cylinder (32) is slidably connected with guide ring (321), the circumferential outer surface of the guide ring (321) is rotatably connected with convex rod (322), the end of the convex rod (322) away from the guide ring (321) is slidably connected with screw groove arranged on the circumferential surface of the threaded cylinder (323). 2.The NTC temperature sensor for a drive motor of a new energy vehicle according to claim 1, wherein: The circumferential inner surface of the fixed ring body (21) is fixedly connected with thread holder (212), the end of the connecting wire (12) away from the thermistor (11) penetrates the fixed ring body (21) through thread holder (212). 3.The NTC temperature sensor for a drive motor of a new energy vehicle according to claim 1, characterized in that: The telescopic part (2) is provided with multiple, and multiple telescopic parts (2) are equidistantly distributed on the circumferential inner surface of the cylinder (1), the extension direction of multiple telescopic patch (22) is different, and the adjacent two rotating ring bodies (23) are fixedly connected by connecting ring rod (231).

4. The NTC temperature sensor suitable for a new energy vehicle driving motor according to claim 1, characterized in that: The rotating drum (32) is fixedly connected with a U-shaped plug-in part (33) at one end away from the rotating tooth ring (31), the rotating ring body (23) is fixedly connected with an extension element (34) at one side close to the U-shaped plug-in part (33), the circumferential inner surface of the cylinder body (1) is fixedly connected with a spiral slide rail (35), the extension end of the extension element (34) is rotatably connected with a first roller (341) and a second roller (342), and the second roller (342) is slidably connected in the spiral slide rail (35).

5. The NTC temperature sensor suitable for a new energy vehicle driving motor according to claim 1, characterized in that: The circumferential surface of the rotating drum (32) is provided with a horizontal groove (3221), and the convex rod (322) is slidably connected with the rotating drum (32) through the horizontal groove (3221).

6. The NTC temperature sensor suitable for a new energy vehicle driving motor according to claim 1, characterized in that: The circumferential outer surface of the cylinder body (1) is fixedly connected with a conical ring (13), the conical ring (13) is fixedly connected with a connecting circular block (131) through the connecting block arranged on the side surface, the connecting circular block (131) is fixedly connected with a wire winding rod (132) at one side close to the thermistor (11), one end of the wire winding rod (132) close to the thermistor (11) is fixedly connected with a circular block (133), and one end of the connecting lead wire (12) away from the thermistor (11) penetrates the circular block (133) and the connecting circular block (131) in sequence.

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