New energy automobile temperature sensor convenient to replace and use method thereof

Abstract

The invention discloses a new energy automobile temperature sensor convenient to replace and a use method thereof, and belongs to the technical field of sensors, the new energy automobile temperature sensor comprises a temperature sensor, and further comprises a fixing assembly, a heat conduction trigger protection assembly and a locking assembly; the fixing assembly is arranged in a new energy automobile motor temperature detection hole, the heat conduction trigger protection assembly is connected with the fixing assembly, and the temperature sensor is arranged at the inner end of the heat conduction trigger protection assembly. The heat conduction trigger protection assembly comprises a protection assembly, a trigger assembly and a phase change heat conduction assembly. The trigger assembly is installed at the inner end of the fixing assembly and used in cooperation with the protection assembly in a pushing mode, the protection assembly is used in cooperation with the inner end of the fixing assembly in an abutting and locking mode, the phase change heat conduction assembly is movably installed at the inner end of the protection assembly, and the temperature sensor is movably installed at the inner end of the phase change heat conduction assembly. The locking assembly is used for locking the protection assembly and the phase change heat conduction assembly and locking the fixing assembly of the temperature sensor. In this way, over-temperature protection of the temperature sensor is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, and in particular to an easily replaceable temperature sensor for new energy vehicles and a method for using the sensor. Background Art

[0002] A temperature sensor is a sensor used for temperature data collection and is widely used in temperature detection of batteries and motors in new energy vehicles.

[0003] Among many prior arts, Chinese patent application CN111684247B discloses a temperature sensor, which includes a pair of thermocouple wires, which are made of different metal materials; a temperature measuring contact, which is formed by the front ends of the pair of thermocouple wires being connected to each other; an outer tube, which is made of metal material, and the temperature measuring contact is accommodated in the front end portion of the outer tube or in a front end cover installed on the front end portion, and the pair of thermocouple wires protrude from the base end portion of the outer tube; an insulating component, which is made of insulating material, is arranged in the outer tube, and insulates the pair of thermocouple wires from the outer tube, and fixes the pair of thermocouple wires to the outer tube; and a glass sealing component, which is made of glass material, is filled in at least one of the base end portion of the outer tube and the retaining member installed on the base end portion of the outer tube, and seals the inside of the outer tube, and contains a plurality of independent bubbles inside the glass sealing component.

[0004] However, this patent application cannot protect the temperature sensor when the temperature at the detection hole is too high.

[0005] Based on this, the present invention designs a new energy vehicle temperature sensor that is easy to replace and a method of using the same to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a new energy vehicle temperature sensor that is easy to replace and a method for using the same.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A temperature sensor for new energy vehicles that is easy to replace, comprising a temperature sensor, a fixing component, a heat conduction trigger protection component and a locking component;

[0009] The fixed component is arranged in the temperature detection hole of the motor of the new energy vehicle, the thermal conduction trigger protection component is connected to the fixed component, and the temperature sensor is arranged at the inner end of the thermal conduction trigger protection component;

[0010] The heat conduction triggered protection component includes a protection component, a trigger component and a phase change heat conduction component;

[0011] The trigger component is installed at the inner end of the fixed component, the trigger component and the protection component are used for pushing, the protection component and the inner end of the fixed component are used for abutment and locking, the phase change thermal conductive component is movably installed at the inner end of the protection component, the temperature sensor is movably installed at the inner end of the phase change thermal conductive component, and the locking component is used for locking the protection component and the phase change thermal conductive component and locking the temperature sensor.

[0012] Furthermore, the fixing assembly includes a fixing sleeve, a limiting ring, a clamping block, an expansion groove, a curved surface and a ring groove;

[0013] The limiting ring is fixedly installed on the upper end surface of the fixing sleeve, and the expansion grooves are uniformly spaced around the center of the limiting ring and are opened through the upper and lower end surfaces of the limiting ring and downwardly opened on the side wall of the fixing sleeve;

[0014] There are a plurality of clamping blocks which are fixedly mounted on the outer wall of the fixing sleeve at equal intervals around the central axis of the fixing sleeve;

[0015] The inner bottom of the expansion groove of the arc surface is close to one end of the central axis of the fixed sleeve, the annular groove is opened on the inner wall of the fixed sleeve and is located below the arc surface, the trigger component is installed on the inner end of the fixed sleeve, the protection component is used in conjunction with the inner wall of the fixed sleeve, the protection component is used in conjunction with the expansion groove and the arc surface, and the protection component is used in conjunction with the annular groove for locking.

[0016] Furthermore, the protection assembly includes a conical metal sleeve, a connecting sleeve, a sliding hole and a bayonet;

[0017] The upper side of the outer wall of the conical metal sleeve is a conical surface, and the lower side of the outer wall of the conical metal sleeve is a straight surface. A table surface for cooperating with the trigger component to push is provided at the junction of the conical surface and the straight surface, and the connecting sleeve is fixedly installed on the upper end surface of the conical metal sleeve;

[0018] There are multiple sliding holes and bayonet pins. The sliding holes are equidistantly spaced around the central axis of the conical metal sleeve and penetrate the conical surface of the conical metal sleeve. The bayonet pin is limitedly slidably connected with the inner wall of the sliding hole. The end of the bayonet pin away from the central axis of the conical metal sleeve is locked with the annular groove and fits with the inner wall and arc surface of the expansion groove for sliding use.

[0019] One end of the bayonet close to the central axis of the conical metal sleeve is used in conjunction with the phase change heat conduction component, the connecting sleeve is connected to the locking component, and the connecting sleeve and the conical metal sleeve are both connected to the phase change heat conduction component.

[0020] Furthermore, the trigger assembly includes a spring and a resisting slip ring, one end of the spring is fixedly connected to the inner bottom of the fixed sleeve, the other end of the spring is fixedly connected to the bottom of the resisting slip ring, and the resisting slip ring is slidably connected to the inner wall of the fixed sleeve.

[0021] Furthermore, the phase change heat conductive assembly includes a heat conductive sleeve, a phase change heat conductive sleeve, a cylindrical socket and a sealing ring;

[0022] The phase-change thermally conductive sleeve is arranged on the outer wall of the thermally conductive sleeve, the phase-change thermally conductive sleeve is fitted and slidably connected to the inner wall of the conical metal sleeve, the cylindrical socket is fixedly installed on the top of the thermally conductive sleeve, the sealing ring is fixedly installed on the outer wall of the cylindrical socket, the temperature sensor is arranged on the inner end of the thermally conductive sleeve, the cylindrical socket is limitedly plug-connected to the inner wall of the conical metal sleeve, the sealing ring is fitted and slidably connected to the inner wall of the conical metal sleeve, the top of the cylindrical socket is connected to the locking assembly, and the end of the bayonet close to the central axis of the conical metal sleeve is in contact with the outer wall of the phase-change thermally conductive sleeve.

[0023] Furthermore, a slot is provided on the inner wall of the connecting sleeve, and an inserting block which cooperates with the slot for limited insertion is fixedly mounted on the outer wall of the cylindrical socket.

[0024] Furthermore, the locking assembly includes a rotary cover, a conical groove, a conical top block, a through hole and an inwardly contracted groove. A conical groove is provided on the inner top of the rotary cover. The bottom of the conical top block cooperates with the top of the cylindrical socket for locking. The through hole runs through the upper and lower end surfaces of the conical top block. There are multiple inwardly contracted grooves that are evenly spaced around the central axis of the conical top block and are arranged on the upper end surface and conical side wall of the conical top block and are connected to the through hole. The conical side wall of the conical top block is fitted and slidably connected to the inner wall of the conical groove, and the inner wall of the rotary cover is threadedly connected to the connecting sleeve.

[0025] Furthermore, the temperature sensor includes a sensor body and a wire, the sensor body is slidably connected to the inner wall of the heat-conducting sleeve, the wire is fixedly connected to the upper end of the sensor body, and the outer wall of the wire is locked with the inner wall of the through hole.

[0026] Furthermore, the cylindrical socket and the rotary cover are provided with through holes for the wires to pass through.

[0027] In order to better achieve the purpose of the present invention, the present invention also provides a method for using a temperature sensor for a new energy vehicle that is easy to replace, comprising the following steps: Step 1, passing the wire through the inner end of the heat-conducting sleeve, the through hole of the cylindrical socket, the through hole, and the through hole of the screw cap in sequence until the sensor body is located at a corresponding position on the inner wall of the heat-conducting sleeve;

[0028] Step 2: insert the heat-conducting sleeve and the phase-change heat-conducting sleeve into the inner end of the conical metal sleeve, and make the bottom of the temperature sensor contact with the inner bottom of the conical metal sleeve, and at the same time, insert the cylindrical socket into the inner wall of the connecting sleeve. At this time, rotate the rotary cover, and the rotary cover and the connecting sleeve threadedly move. The conical groove at the top of the rotary cover contacts and slides with the conical side wall of the conical top block. The conical side wall of the conical top block is squeezed and deformed under the contact of the conical groove, so that the inner contraction groove is deformed. The inner wall of the through hole contacts and locks with the outer wall of the wire under the action of the deformation force. At the same time, the conical top block pushes the cylindrical socket so that it pushes the phase-change heat-conducting sleeve to contact with the inner bottom of the conical metal sleeve.

[0029] Step three, insert the conical metal sleeve into the inner end of the fixed sleeve, and the bayonet slides along the inner wall of the expansion groove, insert the fixed sleeve into the detection hole, press the rotary cover, and the rotary cover pushes the protective component to move downward as a whole, and the conical surface of the conical metal sleeve fits and slides with the inside of the fixed sleeve, and as the conical surface of the conical metal sleeve moves downward, the inner wall of the fixed sleeve is squeezed and deformed, and the expansion groove is deformed until the bayonet slides along the arc surface and is clamped in the ring groove; at this time, the table surface of the conical metal sleeve drives the resistance slip ring to move downward, and the resistance slip ring compresses the spring;

[0030] At the same time, the block is interference fit with the inner wall of the detection hole under the action of the extrusion force, and the position of the fixed sleeve is fixed;

[0031] At the same time, the bottom of the conical metal sleeve contacts the inner bottom of the detection hole, and the heat is transferred from the conical metal sleeve to the phase change heat conductive sleeve, and then from the phase change heat conductive sleeve to the heat conductive sleeve. The sensor body sends the temperature detection signal to the collection device through the wire;

[0032] Step 4: When the temperature in the detection hole exceeds the set stable value due to heat dissipation failure, the phase change thermal sleeve softens due to its heat-induced softening property, causing the bayonet to lose support. At this time, the elastic force on the spring is greater than the clamping force of the ring groove on the bayonet, so the spring pushes the resistance slip ring to move upward, and the resistance slip ring pushes the conical metal sleeve to separate the ring groove from the bayonet pin. At this time, the bottom of the conical metal sleeve separates from the inner bottom of the detection hole, and heat transfer is interrupted.

[0033] Compared with the prior art, the present invention has the following beneficial effects: 1. The fixing component and the detection hole are quickly fixed by the cooperation between the fixing component and the protection component. The protection component and the fixing component are locked and the trigger component reserves the potential energy for driving the protection component and the fixing component to be unlocked when the protection component is installed. The heat transfer between the protection component and the temperature sensor is achieved through the phase change thermal conductive component. At the same time, the phase change thermal conductive component is also used to trigger the potential energy of the trigger component when the temperature exceeds the safety detection value of the temperature sensor, so that the heat conduction between the temperature sensor and the detection hole is interrupted, thereby realizing over-temperature protection of the temperature sensor.

[0034] 2. The locking between the wire and the through hole and the phase change heat conductive component are locked to the inner end of the conical metal sleeve by rotating the rotary cover;

[0035] 3. By utilizing the heat-softening property of the phase-change heat-conductive sleeve, it can be used as a medium for heat conduction and as a switch to trigger the release of the elastic potential energy of the conical metal sleeve, thereby triggering protection when the temperature of the detection hole exceeds the safe detection value of the sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 A three-dimensional diagram of a temperature sensor for new energy vehicles that is easy to replace according to the present invention;

[0038] Figure 2 A front view of a temperature sensor for new energy vehicles that is easy to replace according to the present invention;

[0039] Figure 3 An exploded view of a temperature sensor for new energy vehicles that is easy to replace according to the present invention;

[0040] Figure 4 A cross-sectional perspective view of a temperature sensor for a new energy vehicle that is easy to replace according to the present invention;

[0041] Figure 5 A three-dimensional diagram of the phase-change heat-conducting component and the temperature sensor of the present invention;

[0042] Figure 6 is a perspective view of a locking assembly of the present invention;

[0043] Figure 7 for Figure 4 The enlarged view of point A in the middle;

[0044] Figure 8 for Figure 4 Enlarged view of point B in the middle.

[0045] The numbers in the figure represent:

[0046] 1. Fixing assembly; 11. Fixing sleeve; 12. Limiting ring; 13. Block; 14. Expansion groove; 15. Arc surface; 16. Ring groove; 2. Thermal trigger protection assembly; 21. Protection assembly; 211. Conical metal sleeve; 212. Connecting sleeve; 213. Sliding hole; 214. Bayonet; 22. Trigger assembly; 221. Spring; 222. Resistance slip ring; 23. Phase change thermal conductive assembly; 231. Thermal conductive sleeve; 232. Phase change thermal conductive sleeve; 233. Cylindrical socket; 234. Sealing ring; 3. Locking assembly; 31. Screw cap; 32. Conical groove; 33. Conical top block; 34. Through hole; 35. Retracted groove; 4. Temperature sensor; 41. Sensor body; 42. Wire. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0049] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 8 , a temperature sensor for new energy vehicles that is easy to replace, including a temperature sensor 4, a fixing component 1, a thermal trigger protection component 2 and a locking component 3;

[0050] The fixing component 1 is arranged in the temperature detection hole of the motor of the new energy vehicle, the thermal conduction trigger protection component 2 is connected to the fixing component 1, and the temperature sensor 4 is arranged at the inner end of the thermal conduction trigger protection component 2;

[0051] The heat conduction trigger protection component 2 includes a protection component 21, a trigger component 22 and a phase change heat conduction component 23;

[0052] The trigger component 22 is installed at the inner end of the fixed component 1, and the trigger component 22 is used in conjunction with the protection component 21 for pushing, and the protection component 21 is used in conjunction with the inner end of the fixed component 1 for locking, the phase change thermal conductive component 23 is movably installed at the inner end of the protection component 21, and the temperature sensor 4 is movably installed at the inner end of the phase change thermal conductive component 23, and the locking component 3 is used for locking between the protection component 21 and the phase change thermal conductive component 23 and locking the temperature sensor 4.

[0053] When the present invention is in use, the fixing component 1 and the detection hole are quickly fixed by cooperating with the fixing component 1 and the protection component 21. The protection component 21 is locked with the fixing component 1 and the trigger component 22 reserves the potential energy for driving the protection component 21 and the fixing component 1 to unlock when the protection component 21 is installed. The heat transfer between the protection component 21 and the temperature sensor 4 is achieved through the phase change thermal conductive component 23. At the same time, the phase change thermal conductive component 23 is also used to trigger the potential energy of the trigger component 22 when the temperature exceeds the safety detection value of the temperature sensor 4, so that the heat conduction between the temperature sensor 4 and the detection hole is interrupted, thereby realizing over-temperature protection for the temperature sensor 4.

[0054] Embodiment 2: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, the fixing assembly 1 includes a fixing sleeve 11, a limiting ring 12, a clamping block 13, an expansion groove 14, a curved surface 15 and an annular groove 16;

[0055] The limiting ring 12 is fixedly mounted on the upper end surface of the fixing sleeve 11, and the expansion grooves 14 are uniformly spaced around the center of the limiting ring 12 and penetrate the upper and lower end surfaces of the limiting ring 12 and are downwardly opened on the side wall of the fixing sleeve 11;

[0056] There are multiple clamping blocks 13 and they are fixedly mounted on the outer wall of the fixing sleeve 11 at equal intervals around the central axis of the fixing sleeve 11;

[0057] The arc surface 15 is provided with an inner bottom of the expansion groove 14 at one end close to the central axis of the fixed sleeve 11, the annular groove 16 is provided on the inner wall of the fixed sleeve 11 and is located below the arc surface 15, the trigger component 22 is installed on the inner end of the fixed sleeve 11, the protection component 21 is used in cooperation with the inner wall of the fixed sleeve 11, the protection component 21 is used in cooperation with the expansion groove 14 and the arc surface 15, and the protection component 21 is used in cooperation with the annular groove 16 for locking.

[0058] The protection component 21 includes a conical metal sleeve 211, a connecting sleeve 212, a sliding hole 213 and a bayonet 214;

[0059] The upper side of the outer wall of the conical metal sleeve 211 is a conical surface, and the lower side of the outer wall of the conical metal sleeve 211 is a straight surface. A table surface for cooperating with the trigger component 22 to push is provided at the junction of the conical surface and the straight surface. The connecting sleeve 212 is fixedly installed on the upper end surface of the conical metal sleeve 211.

[0060] There are multiple sliding holes 213 and bayonet pins 214. The sliding holes 213 are equidistantly spaced around the central axis of the conical metal sleeve 211 and penetrate the conical surface of the conical metal sleeve 211. The bayonet pins 214 are limitedly slidably connected with the inner wall of the sliding holes 213. The end of the bayonet pin 214 away from the central axis of the conical metal sleeve 211 is locked with the annular groove 16 and is used for sliding with the inner wall of the expansion groove 14 and the arc surface 15.

[0061] One end of the bayonet 214 close to the central axis of the conical metal sleeve 211 is used in conjunction with the phase change heat conductive component 23 , the connecting sleeve 212 is connected to the locking component 3 , and the connecting sleeve 212 and the conical metal sleeve 211 are both connected to the phase change heat conductive component 23 .

[0062] The trigger assembly 22 includes a spring 221 and a resisting slip ring 222. One end of the spring 221 is fixedly connected to the inner bottom of the fixed sleeve 11, and the other end of the spring 221 is fixedly connected to the bottom of the resisting slip ring 222. The resisting slip ring 222 is slidably connected to the inner wall of the fixed sleeve 11.

[0063] The phase change heat conductive component 23 includes a heat conductive sleeve 231, a phase change heat conductive sleeve 232, a cylindrical socket 233 and a sealing ring 234;

[0064] The phase-change heat-conducting sleeve 232 is sleeved on the outer wall of the heat-conducting sleeve 231, and the phase-change heat-conducting sleeve 232 is fitted and slidably connected to the inner wall of the conical metal sleeve 211, the cylindrical socket 233 is fixedly installed on the top of the heat-conducting sleeve 231, the sealing ring 234 is fixedly installed on the outer wall of the cylindrical socket 233, the temperature sensor 4 is arranged on the inner end of the heat-conducting sleeve 231, the cylindrical socket 233 is limitedly plug-connected with the inner wall of the conical metal sleeve 211, the sealing ring 234 is fitted and slidably connected to the inner wall of the conical metal sleeve 211, the top of the cylindrical socket 233 is connected to the locking assembly 3, and the end of the bayonet 214 close to the central axis of the conical metal sleeve 211 is in contact with the outer wall of the phase-change heat-conducting sleeve 232.

[0065] The inner wall of the connecting sleeve 212 is provided with a slot, and the outer wall of the cylindrical socket 233 is fixedly mounted on an insert block used for limited insertion in cooperation with the slot.

[0066] The locking assembly 3 includes a rotary cover 31, a conical groove 32, a conical top block 33, a through hole 34 and a retracted groove 35. The inner top of the rotary cover 31 is provided with a conical groove 32. The bottom of the conical top block 33 cooperates with the top of the cylindrical socket 233 for locking. The through hole 34 runs through the upper and lower end surfaces of the conical top block 33. There are multiple retracted grooves 35 that are evenly spaced around the central axis of the conical top block 33 and are arranged on the upper end surface and conical side wall of the conical top block 33 and are connected with the through hole 34. The conical side wall of the conical top block 33 is fitted and slidably connected with the inner wall of the conical groove 32. The inner wall of the rotary cover 31 is threadedly connected with the connecting sleeve 212.

[0067] The temperature sensor 4 includes a sensor body 41 and a wire 42. The sensor body 41 is slidably connected to the inner wall of the heat-conducting sleeve 231. The wire 42 is fixedly connected to the upper end of the sensor body 41. The cylindrical socket 233 and the rotary cover 31 are provided with a through hole for the wire 42 to pass through. The outer wall of the wire 42 is locked with the inner wall of the through hole 34.

[0068] When the present invention is used, the locking between the wire 42 and the through hole 34 and the phase change heat conductive component 23 is locked to the inner end of the conical metal sleeve 211 by rotating the rotary cover 31;

[0069] When the present invention is used, by utilizing the heat-softening property of the phase-change heat-conductive sleeve 232 , it can be used as a medium for heat conduction and also as a switch to trigger the release of the elastic potential energy of the conical metal sleeve 211 , thereby triggering protection when the temperature of the detection hole exceeds the safety detection value of the sensor body 41 .

[0070] Embodiment 3: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, a method for using a temperature sensor for a new energy vehicle that is easy to replace includes the following steps:

[0071] Step 1: Pass the wire 42 through the inner end of the heat-conducting sleeve 231, the through hole of the cylindrical socket 233, the through hole 34, and the through hole of the screw cover 31 in sequence until the sensor body 41 is located at a corresponding position of the inner wall of the heat-conducting sleeve 231;

[0072] Step 2: insert the heat-conducting sleeve 231 and the phase-change heat-conducting sleeve 232 into the inner end of the conical metal sleeve 211, and make the bottom of the temperature sensor 4 contact with the inner bottom of the conical metal sleeve 211, and at the same time, insert the cylindrical socket 233 into the inner wall of the connecting sleeve 212. At this time, rotate the rotary cover 31, and the rotary cover 31 and the connecting sleeve 212 move in a threaded manner. The conical groove 32 at the top of the rotary cover 31 contacts and slides with the conical side wall of the conical top block 33. The conical side wall of the conical top block 33 is squeezed and deformed under the contact of the conical groove 32, so that the inner contraction groove 35 is deformed. The inner wall of the through hole 34 contacts and locks with the outer wall of the wire 42 under the action of the deformation force. At the same time, the conical top block 33 pushes the cylindrical socket 233 so that it pushes the phase-change heat-conducting sleeve 232 to contact with the inner bottom of the conical metal sleeve 211.

[0073] Step 3: insert the conical metal sleeve 211 into the inner end of the fixed sleeve 11, and slide the bayonet 214 along the inner wall of the expansion groove 14, insert the fixed sleeve 11 into the detection hole, press the rotary cover 31, and the rotary cover 31 pushes the protection component 21 to move downward as a whole. The conical surface of the conical metal sleeve 211 fits and slides with the inside of the fixed sleeve 11, and as the conical surface of the conical metal sleeve 211 moves downward, the inner wall of the fixed sleeve 11 is squeezed and deformed, and the expansion groove 14 is deformed until the bayonet 214 fits and slides along the arc surface 15 and is clamped in the annular groove 16; at this time, the table surface of the conical metal sleeve 211 drives the resistance slip ring 222 to move downward, and the resistance slip ring 222 compresses the spring 221;

[0074] At the same time, the block 13 is interference fit with the inner wall of the detection hole under the action of the extrusion force, and the position of the fixing sleeve 11 is fixed;

[0075] At the same time, the bottom of the conical metal sleeve 211 contacts the inner bottom of the detection hole, and the heat is transferred to the phase change heat conductive sleeve 232 through the conical metal sleeve 211, and then transferred to the heat conductive sleeve 231 from the phase change heat conductive sleeve 232, and the sensor body 41 sends the temperature detection signal to the collection device through the wire 42;

[0076] Step 4: When the temperature in the detection hole exceeds the set stable value due to heat dissipation failure, the phase change heat-conducting sleeve 232 softens due to its heat-induced property, causing the bayonet 214 to lose support. At this time, the elastic force on the spring 221 is greater than the clamping force of the annular groove 16 on the bayonet 214, so the spring 221 pushes the resistance slip ring 222 to move upward, and the resistance slip ring 222 pushes the conical metal sleeve 211 to cause the annular groove 16 to disengage from the bayonet 214. At this time, the bottom of the conical metal sleeve 211 is disengaged from the inner bottom of the detection hole, and heat transfer is interrupted.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature sensor for a new energy vehicle that is easy to replace, comprising a temperature sensor (4), characterized in that: It also includes a fixing component (1), a heat conduction triggering protection component (2) and a locking component (3); The fixing component (1) is arranged in the temperature detection hole of the motor of the new energy vehicle, the heat conduction trigger protection component (2) is connected to the fixing component (1), and the temperature sensor (4) is arranged at the inner end of the heat conduction trigger protection component (2); The heat conduction triggered protection component (2) comprises a protection component (21), a trigger component (22) and a phase change heat conduction component (23); The trigger component (22) is mounted on the inner end of the fixed component (1); the trigger component (22) and the protection component (21) are used in cooperation for pushing; the protection component (21) and the inner end of the fixed component (1) are used in cooperation for abutting and locking; the phase-change heat-conducting component (23) is movably mounted on the inner end of the protection component (21); the temperature sensor (4) is movably mounted on the inner end of the phase-change heat-conducting component (23); and the locking component (3) is used for locking the protection component (21) and the phase-change heat-conducting component (23) and the temperature sensor (4).

2. The easily replaceable new energy vehicle temperature sensor according to claim 1 is characterized in that: The fixing assembly (1) comprises a fixing sleeve (11), a limiting ring (12), a clamping block (13), an expansion groove (14), a curved surface (15) and an annular groove (16); The limiting ring (12) is fixedly mounted on the upper end surface of the fixing sleeve (11), and the expansion grooves (14) are uniformly spaced around the center of the limiting ring (12) and penetrate the upper and lower end surfaces of the limiting ring (12) and are downwardly opened on the side wall of the fixing sleeve (11); There are a plurality of clamping blocks (13) which are fixedly mounted on the outer wall of the fixing sleeve (11) at equal intervals around the central axis of the fixing sleeve (11); The arc surface (15) is provided with an inner bottom of the expansion groove (14) close to one end of the central axis of the fixed sleeve (11); the annular groove (16) is provided on the inner wall of the fixed sleeve (11) and is located below the arc surface (15); the trigger component (22) is installed on the inner end of the fixed sleeve (11); the protection component (21) and the inner wall of the fixed sleeve (11) are used in cooperation with each other; the protection component (21) and the expansion groove (14) and the arc surface (15) are used in cooperation with each other; and the protection component (21) and the annular groove (16) are used in cooperation with each other for locking.

3. The easily replaceable new energy vehicle temperature sensor according to claim 2 is characterized in that: The protection component (21) comprises a conical metal sleeve (211), a connecting sleeve (212), a sliding hole (213) and a bayonet (214); The upper side of the outer wall of the conical metal sleeve (211) is a conical surface, and the lower side of the outer wall of the conical metal sleeve (211) is a straight surface. A table surface for cooperating with the trigger component (22) for pushing is provided at the junction of the conical surface and the straight surface. The connecting sleeve (212) is fixedly mounted on the upper end surface of the conical metal sleeve (211). A plurality of sliding holes (213) and bayonet pins (214) are provided. The sliding holes (213) are equidistantly spaced around the central axis of the conical metal sleeve (211) and penetrate the conical surface of the conical metal sleeve (211). The bayonet pins (214) are connected to the inner wall of the sliding holes (213) by limiting sliding. The end of the bayonet pin (214) away from the central axis of the conical metal sleeve (211) is locked in cooperation with the annular groove (16) and is used in cooperation with the inner wall of the expansion groove (14) and the arc surface (15) for sliding fit. One end of the bayonet (214) close to the central axis of the conical metal sleeve (211) is used in conjunction with the phase change heat conduction component (23), the connecting sleeve (212) is connected to the locking component (3), and the connecting sleeve (212) and the conical metal sleeve (211) are both connected to the phase change heat conduction component (23).

4. The easily replaceable new energy vehicle temperature sensor according to claim 3 is characterized in that: The trigger assembly (22) comprises a spring (221) and a resisting slip ring (222), one end of the spring (221) is fixedly connected to the inner bottom of the fixed sleeve (11), the other end of the spring (221) is fixedly connected to the bottom of the resisting slip ring (222), and the resisting slip ring (222) is slidably connected to the inner wall of the fixed sleeve (11).

5. The easily replaceable new energy vehicle temperature sensor according to claim 4, characterized in that: The phase-change heat-conducting component (23) comprises a heat-conducting sleeve (231), a phase-change heat-conducting sleeve (232), a cylindrical socket (233) and a sealing ring (234); The phase-change heat-conducting sleeve (232) is sleeved on the outer wall of the heat-conducting sleeve (231), the phase-change heat-conducting sleeve (232) is fitted and slidably connected to the inner wall of the conical metal sleeve (211), the cylindrical socket (233) is fixedly installed on the top of the heat-conducting sleeve (231), the sealing ring (234) is fixedly installed on the outer wall of the cylindrical socket (233), the temperature sensor (4) is arranged on the inner end of the heat-conducting sleeve (231), the cylindrical socket (233) is limitedly plug-connected to the inner wall of the conical metal sleeve (211), the sealing ring (234) is fitted and slidably connected to the inner wall of the conical metal sleeve (211), the top of the cylindrical socket (233) is connected to the locking assembly (3), and one end of the bayonet (214) close to the central axis of the conical metal sleeve (211) is in contact with the outer wall of the phase-change heat-conducting sleeve (232).

6. The easily replaceable new energy vehicle temperature sensor according to claim 5, characterized in that: The inner wall of the connecting sleeve (212) is provided with a slot, and the outer wall of the cylindrical socket (233) is fixedly mounted on an inserting block used for limited insertion in cooperation with the slot.

7. The easily replaceable new energy vehicle temperature sensor according to claim 6, characterized in that: The locking assembly (3) comprises a rotary cover (31), a conical groove (32), a conical top block (33), a through hole (34) and a retracted groove (35). The inner top of the rotary cover (31) is provided with a conical groove (32). The bottom of the conical top block (33) and the top of the cylindrical socket (233) are matched and locked with each other. The through hole (34) is provided through the upper and lower end surfaces of the conical top block (33). There are a plurality of retracted grooves (35) which are provided at equal intervals around the central axis of the conical top block (33) on the upper end surface and the conical side wall of the conical top block (33) and are connected with the through hole (34). The conical side wall of the conical top block (33) is fitted and slidably connected with the inner wall of the conical groove (32). The inner wall of the rotary cover (31) is threadedly connected with the connecting sleeve (212).

8. The easily replaceable new energy vehicle temperature sensor according to claim 7, characterized in that: The temperature sensor (4) comprises a sensor body (41) and a wire (42); the sensor body (41) is slidably connected to the inner wall of the heat-conducting sleeve (231); the wire (42) is fixedly connected to the upper end of the sensor body (41); and the outer wall of the wire (42) and the inner wall of the through hole (34) are matched to abut and lock for use.

9. The easily replaceable new energy vehicle temperature sensor according to claim 8, characterized in that: The cylindrical socket (233) and the rotary cover (31) are provided with through holes for the matching wire (42) to pass through.

10. A method for using a temperature sensor for a new energy vehicle that is easy to replace, using the temperature sensor for a new energy vehicle that is easy to replace as claimed in claim 9, characterized in that: The following steps are involved: Step 1: Pass the wire (42) through the inner end of the heat-conducting sleeve (231), the through hole of the cylindrical socket (233), the through hole (34), and the through hole of the screw cap (31) in sequence until the sensor body (41) is located at a corresponding position of the inner wall of the heat-conducting sleeve (231); Step 2: insert the heat-conducting sleeve (231) and the phase-change heat-conducting sleeve (232) into the inner end of the conical metal sleeve (211), and make the bottom of the temperature sensor (4) contact the inner bottom of the conical metal sleeve (211) and insert the cylindrical socket (233) into the inner wall of the connecting sleeve (212). At this time, rotate the rotary cover (31), the rotary cover (31) and the connecting sleeve (212) are threaded, and the conical groove (32) on the top of the rotary cover (31) is in contact with the conical groove (33). The conical side wall of the top block (33) contacts and slides, and the conical side wall of the conical top block (33) is squeezed and deformed under the contact action of the conical groove (32), thereby causing the shrinkage groove (35) to deform, and the inner wall of the through hole (34) contacts and locks with the outer wall of the wire (42) under the action of the deformation force, and at the same time, the conical top block (33) pushes the cylindrical socket (233) so that it pushes the phase change heat conductive sleeve (232) to contact the inner bottom of the conical metal sleeve (211); Step three, insert the conical metal sleeve (211) into the inner end of the fixed sleeve (11), and slide the bayonet (214) along the inner wall of the expansion groove (14), insert the fixed sleeve (11) into the detection hole, press the rotary cover (31), and the rotary cover (31) pushes the protection component (21) to move downward as a whole, and the conical surface of the conical metal sleeve (211) fits and slides with the inside of the fixed sleeve (11), and as the conical surface of the conical metal sleeve (211) moves downward, the inner wall of the fixed sleeve (11) is squeezed and deformed, and the expansion groove (14) is deformed, until the bayonet (214) fits and slides along the arc surface (15) and is clamped in the annular groove (16); at this time, the table surface of the conical metal sleeve (211) drives the resistance slip ring (222) to move downward, and the resistance slip ring (222) compresses the spring (221); At the same time, the clamping block (13) is interference-fitted with the inner wall of the detection hole under the action of the extrusion force, and the position of the fixing sleeve (11) is fixed; At the same time, the bottom of the conical metal sleeve (211) contacts the inner bottom of the detection hole, and the heat is transferred to the phase-change heat-conducting sleeve (232) through the conical metal sleeve (211), and then transferred from the phase-change heat-conducting sleeve (232) to the heat-conducting sleeve (231), and the sensor body (41) sends the temperature detection signal to the collection device through the wire (42); Step 4: When the temperature in the detection hole exceeds the set stable value due to heat dissipation failure, the phase change heat conductive sleeve (232) softens due to heat, causing the bayonet (214) to lose support. At this time, the elastic force on the spring (221) is greater than the clamping force of the annular groove (16) on the bayonet (214), so the spring (221) pushes the resistance slip ring (222) to move upward, and the resistance slip ring (222) pushes the conical metal sleeve (211) to separate the annular groove (16) from the bayonet (214). At this time, the bottom of the conical metal sleeve (211) is separated from the inner bottom of the detection hole, and heat transfer is interrupted.

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