A thermistor for a heating system in a new energy vehicle and its preparation method

Abstract

This invention discloses a thermistor for a heating system in a new energy vehicle and its manufacturing method. The thermistor includes a housing box with multiple sets of positioning pull rods fixedly connected to both ends. Multiple sets of threaded positioning plates fixed inside the vehicle are fixedly connected to the outer surface of the housing. An end mounting bracket is fixedly connected to the top of each positioning pull rod. A fixing block is fixedly connected inside the housing, and an arc-shaped rotating plate is fixedly connected to one end of the fixing block. When the thermistor rapidly dissipates heat, the three protective layers of the first heat dissipation wall, the second heat dissipation wall, and the heat-conducting sleeve prevent large dust particles from being conducted into the circuitry due to the layers of small holes and flow holes. The multiple small holes and flow holes allow heat to be rapidly dissipated outwards, enabling the thermistor to display appropriate forms for different usage conditions.

Description

Technical Field

[0001] This invention relates to the field of automotive component technology, and more specifically, to a thermistor for a heating system in a new energy vehicle and its preparation method. Background Technology

[0002] The PTC heater in new energy vehicles refers to the positive temperature coefficient thermistor heater. Its main function is to heat the interior of the vehicle, which is the source of heat for the air conditioning in new energy vehicles. PTC uses current to generate a certain amount of heat through a resistor, thereby enabling the vehicle to have a heating function. After the PTC thermistor is powered on, it begins to heat up gradually. The continuous temperature rise causes the resistance value to enter a transition region, which keeps the surface temperature of the resistor constant.

[0003] According to Chinese Patent No. CN104797015B, the use of a structure with unequal widths for the heat pipe and radiator makes the connection between the radiator and heat pipe more stable and the heat dissipation more uniform. At the same time, the semi-circular groove on the side of the heat pipe reduces damage to the insulating film of the heating core on the inner wall of the heat pipe and makes the heating core inside the heat pipe more tightly bonded, greatly improving safety and thermal efficiency.

[0004] However, when the above-mentioned solution is implemented, the heating cores are tightly bonded. After the heating cores are heated, the heating state will be turned off according to the internal instructions of the car, and the heat dissipation component will dissipate heat from them. However, the heating cores are not positioned by the positioning component, and they are easily affected by cold contraction, which can cause multiple heating cores to separate, resulting in a significant reduction in their service life. Therefore, we propose a thermistor for the heating system of new energy vehicles and its preparation method. Summary of the Invention

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a thermistor for a heating system in a new energy vehicle and its preparation method. When heat is conducted through the interior of the heat dissipation tube, the properties of the heat-dissipating silicone are utilized to conduct heat through the first heat dissipation wall, the second heat dissipation wall, and the heat-conducting sleeve, allowing heat to be normally transferred to various parts of the vehicle. When the thermistor rapidly dissipates heat, the three-layer protective area of ​​the first heat dissipation wall, the second heat dissipation wall, and the heat-conducting sleeve prevents large dust particles from being conducted to the interior of the circuit due to the layers of small holes and flow holes, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermistor for a heating system of a new energy vehicle, comprising a heater housing, wherein multiple sets of positioning pull bars are fixedly connected to both ends of the heater housing, multiple sets of threaded positioning plates fixed inside the vehicle are fixedly connected to the outer surface of the heater housing, an end mounting bracket is fixedly connected to the top of the positioning pull bars, a fixing block is fixedly connected to the inside of the heater housing, and an arc-shaped rotating plate is fixedly connected to one end of the fixing block;

[0007] An arc-shaped spring is fixedly connected inside the arc-shaped rotating plate. Multiple sets of retractable arc-shaped rods are slidably connected inside the arc-shaped rotating plate. One end of each retractable arc-shaped rod is fixedly connected to the outer surface of the arc-shaped spring. There are multiple sets of retractable arc-shaped rods and arc-shaped rotating plates, forming a ring shape. A first heat dissipation wall and a second heat dissipation wall made of heat-dissipating silicone are fixedly connected to the inner wall of the arc-shaped rotating plate. A heat-dissipating sleeve made of heat-dissipating silicone is fixedly connected between the first heat dissipation wall and the second heat dissipation wall. Multiple sets of flow-through holes with internal filters are opened on the surface of the heat-dissipating sleeve. Heat-dissipating silicone, also known as heat-dissipating paste, is a heat-conducting material with low thermal resistance, high thermal conductivity, and high flexibility. It is mainly used for heat dissipation of electronic components. Heat-dissipating silicone also has the characteristics of water resistance, weather aging resistance, and excellent electrical insulation.

[0008] The top of the arc-shaped rotating plate is fixedly connected to an upper ring plate, and the bottom of the arc-shaped rotating plate is fixedly connected to a lower ring plate. The upper and lower ring plates are provided with slide rails at the ends facing the retractable arc-shaped rods. Multiple sets of retractable arc-shaped rods are slidably connected inside the upper and lower ring plates through the slide rails. When the heat dissipation tube conducts heat inside, the properties of the heat dissipation silicone allow heat to be conducted through the first heat dissipation wall, the second heat dissipation wall, and the heat-conducting sleeve, so that the heat can be normally transferred to various parts of the car. When the thermistor heats up quickly, due to the three-layer protective area of ​​the first heat dissipation wall, the second heat dissipation wall, and the heat-conducting sleeve, large dust particles are blocked by layers of small holes and flow holes and cannot be conducted to the inside of the circuit. The multiple small holes and flow holes allow the heat to be quickly dissipated to the outside.

[0009] In a preferred embodiment, the surface of the upper ring plate is provided with an arc-shaped groove matching the number of retractable arc-shaped rods. One end of each retractable arc-shaped rod is fixedly connected to an end sliding rod that fits into the arc-shaped groove. A locking long rod is rotatably connected to the center of the end mounting frame. One end of the locking long rod is fixedly connected to a motor mounting rod. There are multiple sets of end sliding rods, which are attached to one end of the motor mounting rod and spliced ​​together to form a hollow ring block.

[0010] In a preferred embodiment, the motor mounting rod is fixedly connected to the limiting rotating ring on the outer surface of the limiting rotating ring. Multiple sets of end sliding rotating rods are rotatably connected to the outer surface of the limiting rotating ring via hollow annular blocks. The hollow annular blocks of the end sliding rotating rods are set to rotate about the outer surface of the limiting rotating ring due to the friction between them and the limiting rotating ring. As the motor mounting rod rotates, the motor mounting rod rotates synchronously through the friction between the limiting rotating ring and the multiple sets of end sliding rotating rods until the end sliding rotating rods drive the retractable arc rod to deflect along the inside of the arc-shaped rotating groove. The retractable arc rod deflects through the clamping track of the upper ring plate and the lower ring plate.

[0011] In a preferred embodiment, baffles are fixedly connected to the upper and lower ends of the end mounting bracket, and multiple sets of automotive wire mounting tubes with second insertion holes are fixedly connected to the upper and lower ends of the end mounting bracket, and the same number of heat dissipation wire tubes are inserted into the multiple sets of automotive wire mounting tubes.

[0012] In a preferred embodiment, a lower wire mounting bracket is fixedly connected to the bottom of the heater mounting box. A lower positioning plate is fixedly connected to both ends of the lower wire mounting bracket. A fixing and bonding block is fixedly connected to both ends of the lower positioning plate. Multiple sets of magnetic adsorption coils are sleeved on the outer surface of the fixing and bonding block. A threaded positioning rod is threadedly connected to the connection between the fixing and bonding block and the lower wire mounting bracket. The fixing and bonding block is positioned by the threaded positioning rod. As the cooling fan rotates, the dust in the gap between the retractable arc rod and the arc spring in the separated state, as well as the dust cleaned by the brush, flows out through multiple holes and flow holes corresponding to the flow holes penetrating the surfaces of the first and second heat dissipation walls. The dust is then blown towards the surface of the fixing and bonding block by the air generated by the cooling fan.

[0013] In a preferred embodiment, the lower wire mounting bracket has a first fixing sleeve at one end corresponding to the second insertion hole, the same number of which are provided for the lower wire mounting bracket. The end of the heat dissipation tube away from the automotive wire mounting tube is inserted into the inside of the first fixing sleeve. The heat dissipation tube passes through the lower ring plate and the upper ring plate. The automotive wire mounting tube is fixedly installed on the surface of the upper ring plate. One end of the heat dissipation tube is wrapped by the automotive wire mounting tube, and the other end of the heat dissipation tube is wrapped by the first fixing sleeve.

[0014] In a preferred embodiment, a second gear is fixedly connected to one end of the engaging rod that passes through the upper ring plate. A matching plug is fixedly connected to one end of the second gear facing the lower wire mounting frame. A receiving frame is rotatably connected inside the matching plug. An end positioning rod is fixedly connected to one end of the receiving frame. The engaging rod is deflected by the linkage of the motor mounting rod. The engaging rod drives the second gear to deflect along the clamping position of the receiving frame through the matching plug. Since the matching gear meshes with the second gear and the first gear, the matching gear rotates along with the rotation of the second gear.

[0015] In a preferred embodiment, the outer surface of the end positioning rod is rotatably connected to a locking groove block, the outer surface of the locking groove block is fixedly connected to a mounting long rod, one end of the mounting long rod is rotatably connected to a meshing gear, and the outer surface of the meshing gear has multiple sets of brush mounting holes for installing brush bristles.

[0016] In a preferred embodiment, a lower heating element mounting rod is fixedly connected inside the lower ring plate. The lower heating element mounting rod is fixedly installed inside the lower wire mounting frame. A first gear is fixedly connected to the outer surface of the lower heating element mounting rod. The upper and lower ends of the meshing gear are respectively meshed with the second gear and the first gear. A cooling fan is fixedly connected to the outer surface of the motor mounting rod. A motor is fixedly installed at the top of the motor mounting rod. The motor drives the motor mounting rod to rotate, and the motor mounting rod adjusts the rotation of the cooling fan. The cooling fan dissipates heat from the heat dissipation tubes located inside the arc-shaped rotating plate and the threaded positioning plate.

[0017] A method for preparing a thermistor for a heating system in a new energy vehicle includes the following steps:

[0018] Step 1: The thermal heating element is composed of PTC ceramic heating element and aluminum tube. In the clean room, the staff splices and wraps the bulk galvanized outer pressure plate, stainless steel corrugated spring sheet, galvanized inner pressure plate, single-layer aluminum heat sink, PTC heating element, double-layer aluminum heat sink, and nickel-plated copper electrode terminal inside the PPS high-temperature plastic electrode sheath to form a heat dissipation tube.

[0019] Step 2: Weld multiple sets of threaded positioning plates that have been tapped by a drill bit onto the outer surface of the heater mounting box using a welding machine. Insert multiple automotive wire mounting tubes into the automotive wire mounting tubes that have been slotted by a grooving machine and the interior of the lower wire mounting frame. Weld the lower heater mounting rod inside the lower wire mounting frame using a welding machine.

[0020] Step 3: Next, use a welding machine to weld multiple positioning strips and fixing blocks onto the surface of the heater housing. Use the welding machine to fix one end of multiple sets of positioning strips to the end mounting frame and fixing block. At the same time, slide the retractable arc rod inside the arc rotating plate. Fix the lower ring plate and upper ring plate to the arc rotating plate in layers. Apply rubber for sealing at the connection between the retractable arc rod and the arc rotating plate.

[0021] Step 4: Finally, insert the locking rod welded to the surface of the motor mounting rod into the interior of the upper ring plate until the receiving frame and the locking block are fitted together. At the same time, use an air extractor to extract the air from the inside of the arc-shaped rotating plate, the retractable arc rod, the upper ring plate and the fixing block along the first fixing sleeve. Place the sealing rubber plug at the connection between the heat dissipation tube and the first fixing sleeve.

[0022] The technical effects and advantages of this invention are as follows:

[0023] 1. When the heat dissipation coil conducts heat internally, the properties of the thermal silicone allow heat to be conducted through the first heat dissipation wall, the second heat dissipation wall, and the thermal conductive sleeve, enabling the heat to be normally transferred to various parts of the car. When the thermal heater dissipates heat rapidly, the three-layer protective area of ​​the first heat dissipation wall, the second heat dissipation wall, and the thermal conductive sleeve prevents large dust particles from being conducted into the circuit by layers of small holes and flow passages. The use of multiple small holes and flow passages allows heat to be quickly dissipated to the outside, thus enabling the thermal heater to be displayed in a suitable form for different usage conditions.

[0024] 2. The retractable arc-shaped rod deflects through the clamping track of the upper and lower ring plates until it slides and retracts inside the arc-shaped rotating plate through the arc spring. The end sliding rod is then limited by the collision with the inner wall of the arc-shaped rotating groove. The end sliding rod is held in this position by the friction between it and the limiting ring. The retractable arc-shaped rod is partially retracted inside the arc-shaped rotating plate, resulting in a large gap in the cylindrical structure formed by the retractable arc-shaped rod and the arc-shaped rotating plate for heat dissipation. This allows for rapid heat dissipation and prevents the inflow of external air and dust during heat conduction.

[0025] 3. As the radiator fan rotates, the dust in the gap between the retractable arc rod and the arc spring in the separated state, as well as the dust cleaned by the brush, flows out through the multiple holes and flow holes corresponding to the flow holes that penetrate the surfaces of the first and second heat dissipation walls. With the air generated by the radiator fan, the dust is blown toward the surface of the fixed bonding block. During this period, the dust is subjected to a certain friction force due to the friction between the brush and the multiple sets of holes. Since the magnetic adsorption coil is an electromagnetic coil, as the dust is blown toward the surface of the multiple sets of magnetic adsorption coils, the dust is electromagnetically adsorbed, thereby preventing the dust from flying around randomly inside the car and causing adverse effects on other parts of the car.

[0026] 4. The engaging gear rotates along with the rotation of the second gear, which in turn drives the brush bristles on the surface of the brush mounting hole to rotate. At the same time, the engaging gear, guided by the first gear, drives the mounting rod to rotate on the end positioning rod surface through the locking groove block, thereby expanding the cleaning range of the heat dissipation tube and preventing dust accumulation from adversely affecting the circuit. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the heater mounting box of the present invention.

[0028] Figure 2 This is a schematic diagram of the cooling fan structure of the present invention.

[0029] Figure 3 This is a schematic diagram of the locking rod structure of the present invention.

[0030] Figure 4 This is a schematic diagram of the arc-shaped rotating plate of the present invention.

[0031] Figure 5 This is a schematic diagram of the structure of the first gear of the present invention.

[0032] Figure 6 This is a schematic diagram of the structure of the automotive wiring harness mounting tube of the present invention.

[0033] Figure 7 This is a schematic diagram of the end positioning rod of the present invention.

[0034] Figure 8 For the present invention Figure 7 Enlarged view of the structure of part A.

[0035] Figure 9 This is a schematic diagram of the structure of the heat-conducting sleeve of the present invention.

[0036] Figure 10 This is a schematic diagram of the structure of the first gear of the present invention.

[0037] The attached figures are labeled as follows: 1. Heater mounting box; 2. Positioning pull bar; 3. End mounting bracket; 4. Motor mounting rod; 5. Cooling fan; 6. Automotive wire mounting tube; 7. Threaded positioning plate; 8. End sliding rotating rod; 9. Lower wire mounting bracket; 10. Lower positioning plate; 11. Fixing and fitting block; 12. Lower heater mounting rod; 13. Arc-shaped rotating plate; 14. Cooling wire tube; 15. First fixing sleeve; 16. Arc-shaped spring; 17. Retractable arc-shaped rod; 18. First heat dissipation wall; 19. Second heat dissipation wall. 20. Wall; 21. End positioning rod; 22. Engaging slot block; 23. Mounting long rod; 24. Engaging gear; 25. First gear; 26. Limiting rotating ring; 27. Engaging long rod; 28. Receiving frame; 29. ​​Engaging insert block; 30. Second gear; 31. Upper ring plate; 32. Arc-shaped rotating groove; 33. Fixing block; 34. Heat-conducting sleeve; 35. Lower ring plate; 36. Flow transmission hole; 37. Brush mounting hole; 38. Magnetic adsorption coil; 39. Threaded positioning rod; 40. Second insertion hole; 41. Baffle. Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Refer to the instruction manual appendix Figure 1-6 An embodiment of the present invention provides a thermistor for a new energy vehicle heating system, comprising a heater housing 1, multiple sets of positioning pull bars 2 fixedly connected to both ends of the heater housing 1, multiple sets of threaded positioning plates 7 fixed inside the vehicle fixedly connected to the outer surface of the heater housing 1, an end mounting bracket 3 fixedly connected to the top end of the positioning pull bars 2, a fixing block 32 fixedly connected inside the heater housing 1, and an arc-shaped rotating plate 13 fixedly connected to one end of the fixing block 32.

[0040] An arc-shaped spring 16 is fixedly connected inside the arc-shaped rotating plate 13. Multiple sets of retractable arc-shaped rods 17 are slidably connected inside the arc-shaped rotating plate 13. One end of the retractable arc-shaped rod 17 is fixedly connected to the outer surface of the arc-shaped spring 16. There are multiple sets of retractable arc-shaped rods 17 and arc-shaped rotating plates 13. Multiple sets of retractable arc-shaped rods 17 and arc-shaped rotating plates 13 form an annular shape. A first heat dissipation wall 18 and a second heat dissipation wall 19 made of heat dissipation silicone are fixedly connected to the inner wall of the arc-shaped rotating plate 13. A heat dissipation sleeve 33 made of heat dissipation silicone is fixedly connected between the first heat dissipation wall 18 and the second heat dissipation wall 19. Multiple sets of flow transmission holes 35 with internal filters are opened on the surface of the heat dissipation sleeve 33. Heat dissipation silicone, also known as heat dissipation paste, is a heat-conducting material with low thermal resistance, high thermal conductivity, and high flexibility. It is mainly used for heat dissipation of electronic components. Heat dissipation silicone also has the characteristics of water resistance, weather aging resistance, and excellent electrical insulation.

[0041] The lower heating element mounting rod 12 is fixedly connected inside the lower ring plate 34. The lower heating element mounting rod 12 is fixedly installed inside the lower wire mounting frame 9. The outer surface of the lower heating element mounting rod 12 is fixedly connected to the first gear 24. The upper and lower ends of the meshing gear 23 are respectively meshed with the second gear 29 and the first gear 24. The outer surface of the motor mounting rod 4 is fixedly connected to the cooling fan 5. The top of the motor mounting rod 4 is fixedly installed with a motor. The motor drives the motor mounting rod 4 to rotate. The motor mounting rod 4 adjusts the cooling fan 5 to rotate. The cooling fan 5 dissipates heat from the heat dissipation tube 14 located inside the arc-shaped rotating plate 13 and the threaded positioning plate 7.

[0042] The top of the arc-shaped rotating plate 13 is fixedly connected to an upper ring plate 30, and the bottom of the arc-shaped rotating plate 13 is fixedly connected to a lower ring plate 34. The upper ring plate 30 and the lower ring plate 34 are provided with slide rails at one end facing the storage arc-shaped rod 17. Multiple sets of storage arc-shaped rods 17 are slidably connected inside the upper ring plate 30 and the lower ring plate 34 through the slide rails. When the heat dissipation tube 14 conducts heat inside, the heat dissipation silicone is used to conduct heat through the first heat dissipation wall 18, the second heat dissipation wall 19 and the heat conduction sleeve 33, so that the heat can be normally transferred to various parts of the car. When the thermal heater dissipates heat quickly, due to the three-layer protection area of ​​the first heat dissipation wall 18, the second heat dissipation wall 19 and the heat conduction sleeve 33, large dust particles are blocked by layers of small holes and flow holes 35 and cannot be conducted to the inside of the circuit. The multiple small holes and flow holes 35 are used to allow heat to be quickly dissipated to the outside, so that the thermal heater can be displayed in a suitable form according to different usage conditions.

[0043] Refer to the instruction manual appendix Figure 9The surface of the upper ring plate 30 is provided with an arc-shaped groove 31, which is the same number as the number of the retractable arc-shaped rods 17. One end of the retractable arc-shaped rod 17 is fixedly connected to the arc-shaped groove 31 and an end sliding rod 8 is fixedly connected. The center of the end mounting frame 3 is rotatably connected to a locking long rod 26. One end of the locking long rod 26 is fixedly connected to a motor mounting rod 4. There are multiple sets of end sliding rods 8. Multiple sets of end sliding rods 8 are attached to one end of the motor mounting rod 4 and spliced ​​to form a hollow ring block.

[0044] Furthermore, the motor mounting rod 4 is fixedly connected to the limiting rotating ring 25 on its outer surface. Multiple sets of end sliding rotating rods 8 are rotatably connected to the outer surface of the limiting rotating ring 25 via hollow annular blocks. The hollow annular blocks of the end sliding rotating rods 8 are set to rotate about the outer surface of the limiting rotating ring 25 due to friction with it. As the motor mounting rod 4 rotates, it rotates synchronously with the limiting rotating ring 25 and the multiple sets of end sliding rotating rods 8 until the end sliding rotating rods 8 drive the retractable arc-shaped rod 17 to deflect along the interior of the arc-shaped groove 31. 7. The upper ring plate 30 and the lower ring plate 34 clamp the rails and deflect until the retractable arc rod 17 slides and retracts inside the arc rotating plate 13 through the arc spring 16. Then the end sliding rod 8 is limited by the collision with the inner wall of the arc rotating groove 31. The end sliding rod 8 is held in this position by the friction between it and the limiting rotating ring 25. The retractable arc rod 17 is retracted into part of the arc rotating plate 13, which causes a large gap to be generated in the cylindrical structure formed by the retractable arc rod 17 and the arc rotating plate 13 for heat dissipation. This achieves rapid heat dissipation during heat dissipation and prevents the inflow of external air and dust during heat conduction.

[0045] Refer to the instruction manual appendix Figure 1-4The upper and lower ends of the end mounting bracket 3 are fixedly connected to baffles 40. Multiple sets of automotive wire mounting tubes 6, each with a second insertion hole 39 inside, are fixedly connected to the upper and lower ends of the end mounting bracket 3. The same number of heat dissipation wire tubes 14 are inserted into the interior of each set of automotive wire mounting tubes 6. The bottom end of the heater mounting box 1 is fixedly connected to a lower wire mounting bracket 9. Lower positioning plates 10 are fixedly connected to both ends of the lower wire mounting bracket 9. Fixed bonding blocks 11 are fixedly connected to both ends of the lower positioning plates 10. Multiple sets of magnetic adsorption coils 37 are sleeved on the outer surface of the fixed bonding blocks 11. A threaded positioning rod 38 is threadedly connected to the connection between the fixed bonding block 11 and the lower wire mounting bracket 9. The threaded positioning rod 38 is used to secure the fixed bonding block 11 to the lower wire mounting bracket 9. The fixed bonding block 11 is positioned and positioned. As the cooling fan 5 rotates, the dust in the gap between the retractable arc rod 17 and the arc spring 16 in the separated state, as well as the dust cleaned by the brush, flows out through the multiple holes corresponding to the flow holes 35 on the surfaces of the first cooling wall 18 and the second cooling wall 19. With the wind generated by the cooling fan 5, the dust is blown towards the surface of the fixed bonding block 11. During this period, the dust is subjected to friction between the brush and the multiple sets of holes, generating a certain frictional force. Since the magnetic adsorption coil 37 is an electromagnetic coil, as the dust is blown towards the surface of the multiple sets of magnetic adsorption coils 37, the dust is electromagnetically adsorbed, thereby preventing the dust from flying around randomly inside the car and causing adverse effects on other parts of the car.

[0046] Refer to the instruction manual appendix Figure 7-10 The lower wire mounting bracket 9 has a first fixing sleeve 15 with the same number as the lower wire mounting bracket 9 at one end corresponding to the second insertion hole 39. The end of the heat dissipation tube 14 away from the car wire mounting tube 6 is inserted into the inside of the first fixing sleeve 15. The heat dissipation tube 14 passes through the lower ring plate 34 and the upper ring plate 30. The car wire mounting tube 6 is fixedly installed on the surface of the upper ring plate 30. One end of the heat dissipation tube 14 is wrapped by the car wire mounting tube 6, and the other end of the heat dissipation tube 14 is wrapped by the first fixing sleeve 15. During the heat conduction process, the heat dissipation tube 14 is prevented from colliding with the inner wall of the car due to the shaking of the car and being damaged. At the same time, both ends of the heat dissipation tube 14 are fixed to prevent the heating tubes from being misaligned and entangled. The outer surface of the end positioning rod 20 is rotatably connected to the locking groove block 21. The outer surface of the locking groove block 21 is fixedly connected to the mounting long rod 22. One end of the mounting long rod 22 is rotatably connected to the meshing gear 23. The outer surface of the meshing gear 23 is provided with multiple sets of brush mounting holes 36 for installing brush bristles.

[0047] The locking rod 26 has a second gear 29 fixedly connected to one end of the upper ring plate 30. A matching plug 28 is fixedly connected to the end of the second gear 29 facing the lower wire mounting bracket 9. A receiving bracket 27 is rotatably connected inside the matching plug 28. An end positioning rod 20 is fixedly connected to one end of the receiving bracket 27. The locking rod 26 is deflected by the linkage of the motor mounting rod 4. The locking rod 26 drives the second gear 29 to deflect along the clamping position of the receiving bracket 27 via the matching plug 28. Due to the matching... When gear 23 meshes with the second gear 29 and the first gear 24, the meshing gear 23 rotates along with the rotation of the second gear 29. The meshing gear 23 drives the brush bristles on the surface of the brush mounting hole 36 to rotate. At the same time, guided by the first gear 24, the meshing gear 23 drives the mounting rod 22 to rotate on the surface of the end positioning rod 20 through the locking groove block 21, thereby expanding the cleaning range of the heat dissipation tube 14 and avoiding dust accumulation that may have an adverse effect on the circuit.

[0048] A method for preparing a thermistor for a heating system in a new energy vehicle includes the following steps:

[0049] Step 1: The thermal heating element is composed of PTC ceramic heating element and aluminum tube. In the cleanroom, the staff splices and wraps the bulk galvanized outer pressure plate, stainless steel corrugated spring sheet, galvanized inner pressure plate, single-layer aluminum heat sink, PTC heating element, double-layer aluminum heat sink, and nickel-plated copper electrode terminal inside the PPS high-temperature plastic electrode sheath to form heat dissipation tube 14.

[0050] Step 2: Weld multiple sets of threaded positioning plates 7, which have been tapped by drill bit, onto the outer surface of the heater mounting box 1 using a welding machine. Insert multiple automotive wire mounting tubes 6 into the interior of the automotive wire mounting tubes 6 and the lower wire mounting frame 9, which have been slotted by a grooving machine. Weld and fix the lower heater mounting rod 12 inside the lower wire mounting frame 9 using a welding machine.

[0051] Step 3: Next, use a welding machine to weld multiple positioning pull strips 2 and fixing blocks 32 onto the surface of the heater mounting box 1. Use the welding machine to fix one end of multiple sets of positioning pull strips 2 to the end mounting frame 3 and fixing blocks 32. At the same time, slide the retractable arc rod 17 inside the arc rotating plate 13. Fix the lower ring plate 34 and the upper ring plate 30 to the arc rotating plate 13 in layers. Apply rubber for sealing at the connection between the retractable arc rod 17 and the arc rotating plate 13.

[0052] Step 4: Finally, insert the locking rod 26, which is welded to the surface of the motor mounting rod 4, into the interior of the upper ring plate 30 until the receiving frame 27 and the fitting plug 28 are fitted together. At the same time, use an air extractor to extract the air from the inside of the arc-shaped rotating plate 13, the retractable arc rod 17, the upper ring plate 30 and the fixing block 32 along the first fixing sleeve 15, and plug the sealing rubber at the connection between the heat dissipation tube 14 and the first fixing sleeve 15.

[0053] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0054] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0055] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A thermistor for a heating system in a new energy vehicle, comprising a heater housing (1), characterized in that: The two ends of the heater mounting box (1) are fixedly connected to multiple sets of positioning pull strips (2), the outer surface of the heater mounting box (1) is fixedly connected to multiple sets of threaded positioning plates (7) fixed inside the car, the top end of the positioning pull strip (2) is fixedly connected to an end mounting bracket (3), the inside of the heater mounting box (1) is fixedly connected to a fixing block (32), and one end of the fixing block (32) is fixedly connected to an arc-shaped rotating plate (13). An arc spring (16) is fixedly connected inside the arc-shaped rotating plate (13). Multiple sets of retractable arc rods (17) are slidably connected inside the arc-shaped rotating plate (13). One end of the retractable arc rod (17) is fixedly connected to the outer surface of the arc spring (16). There are multiple sets of retractable arc rods (17) and arc-shaped rotating plates (13). Multiple sets of retractable arc rods (17) and arc-shaped rotating plates (13) form an annular shape. A heat-conducting sleeve (33) made of heat-dissipating silicone, a first heat-dissipating wall (18), and a second heat-dissipating wall (19) are fixedly connected on the inner wall of the arc-shaped rotating plate (13). A heat-conducting sleeve (33) made of heat-dissipating silicone is fixedly connected between the first heat-dissipating wall (18) and the second heat-dissipating wall (19). Multiple sets of flow holes (35) with internal filters are opened on the surface of the heat-conducting sleeve (33). The top end of the arc-shaped rotating plate (13) is fixedly connected to an upper ring plate (30), and the bottom end of the arc-shaped rotating plate (13) is fixedly connected to a lower ring plate (34). The upper ring plate (30) and the lower ring plate (34) are provided with slide rails at one end facing the storage arc rod (17). Multiple sets of storage arc rods (17) are slidably connected inside the upper ring plate (30) and the lower ring plate (34) through the slide rails. The upper and lower ends of the end mounting bracket (3) are fixedly connected with baffles (40), and the upper and lower ends of the end mounting bracket (3) are fixedly connected with multiple sets of automotive wire mounting tubes (6) with a second insertion hole (39) inside. The same number of heat dissipation wire tubes (14) are inserted inside the multiple sets of automotive wire mounting tubes (6). The bottom end of the heater mounting box (1) is fixedly connected to the lower wire mounting bracket (9). The lower wire mounting bracket (9) has a first fixing sleeve (15) at one end corresponding to the second insertion hole (39), which is the same number as the lower wire mounting bracket (9). The end of the heat dissipation tube (14) away from the car wire mounting tube (6) is inserted into the inside of the first fixing sleeve (15). The heat dissipation tube (14) passes through the lower ring plate (34) and the upper ring plate (30). The car wire mounting tube (6) is fixedly installed on the surface of the upper ring plate (30).

2. The thermistor for a new energy vehicle heating system according to claim 1, characterized in that: The surface of the upper ring plate (30) is provided with an arc-shaped groove (31) with the same number as the storage arc-shaped rod (17). The end of the storage arc-shaped rod (17) that fits into the arc-shaped groove (31) is fixedly connected to an end sliding rod (8). The center of the end mounting frame (3) is rotatably connected to a locking long rod (26). One end of the locking long rod (26) is fixedly connected to a motor mounting rod (4). The number of end sliding rods (8) is multiple sets. Multiple sets of end sliding rods (8) fit into one end of the motor mounting rod (4) and are spliced ​​to form a hollow ring block.

3. The thermistor for a new energy vehicle heating system according to claim 2, characterized in that: The motor mounting rod (4) is fixedly connected to the limiting rotating ring (25) on the outer surface of the limiting rotating ring (25). Multiple sets of the end sliding rotating rods (8) are rotatably connected to the outer surface of the limiting rotating ring (25) through hollow annular blocks. The hollow annular blocks of the end sliding rotating rods (8) are set to rotate about the outer surface of the limiting rotating ring (25) by friction with the limiting rotating ring (25).

4. The thermistor for a new energy vehicle heating system according to claim 3, characterized in that: The lower wire placement frame (9) is fixedly connected to two ends of a lower positioning plate (10), and the lower positioning plate (10) is fixedly connected to two ends of a fixing adhesive block (11). Multiple sets of magnetic adsorption coils (37) are sleeved on the outer surface of the fixing adhesive block (11). The connection between the fixing adhesive block (11) and the lower wire placement frame (9) is connected by a threaded positioning rod (38).

5. The thermistor for a new energy vehicle heating system according to claim 4, characterized in that: The locking rod (26) is fixedly connected to a second gear (29) at one end of the upper ring plate (30). The second gear (29) is fixedly connected to a fitting plug (28) at one end facing the lower wire mounting frame (9). The fitting plug (28) is rotatably connected to a receiving frame (27). One end of the receiving frame (27) is fixedly connected to an end positioning rod (20).

6. The thermistor for a new energy vehicle heating system according to claim 5, characterized in that: The outer surface of the end positioning rod (20) is rotatably connected to a locking groove block (21), and the outer surface of the locking groove block (21) is fixedly connected to a mounting long rod (22). One end of the mounting long rod (22) is rotatably connected to a meshing gear (23), and the outer surface of the meshing gear (23) has multiple sets of brush mounting holes (36) for installing brush bristles.

7. A thermistor for a new energy vehicle heating system according to claim 6, characterized in that: The lower ring plate (34) is fixedly connected to the lower heater mounting rod (12), which is fixedly installed inside the lower wire mounting frame (9). The lower heater mounting rod (12) is fixedly connected to the outer surface of the lower heater mounting rod (12). The upper and lower ends of the meshing gear (23) are respectively meshed with the second gear (29) and the first gear (24). The outer surface of the motor mounting rod (4) is fixedly connected to the cooling fan (5).

8. The method for preparing a thermistor for a new energy vehicle heating system according to claim 7, characterized in that, Includes the following steps: Step 1: The thermal heating element is composed of PTC ceramic heating element and aluminum tube. In the cleanroom, the staff splices and wraps the bulk galvanized outer pressure plate, stainless steel corrugated spring sheet, galvanized inner pressure plate, single-layer aluminum heat sink, PTC heating element, double-layer aluminum heat sink, and nickel-plated copper electrode terminal inside the PPS high-temperature plastic electrode sheath to form a heat dissipation tube (14). Step 2: Weld multiple sets of threaded positioning plates (7) that have been tapped by a drill bit on the outer surface of the heater mounting box (1) using a welding machine. Insert multiple automotive wire mounting tubes (6) into the inside of the automotive wire mounting tubes (6) that have been slotted by a grooving machine and the lower wire mounting frame (9). Weld the lower heater mounting rod (12) inside the lower wire mounting frame (9) using a welding machine. Step 3: Next, use a welding machine to weld multiple positioning pull strips (2) and fixing blocks (32) onto the surface of the heater mounting box (1). Use the welding machine to fix one end of multiple sets of positioning pull strips (2) to the end mounting frame (3) and fixing blocks (32). At the same time, slide the retractable arc rod (17) inside the arc rotating plate (13). Fix the lower ring plate (34) and upper ring plate (30) to the arc rotating plate (13) in layers. Apply rubber for sealing at the connection between the retractable arc rod (17) and the arc rotating plate (13). Step 4: Finally, the locking rod (26) welded to the surface of the motor mounting rod (4) is inserted into the interior of the upper ring plate (30) until the receiving frame (27) and the fitting plug (28) are fitted and installed. At the same time, the air is extracted from the inside of the arc-shaped rotating plate (13), the storage arc-shaped rod (17), the upper ring plate (30) and the fixing block (32) along the first fixing sleeve (15) using an air extractor. The sealing rubber is then plugged into the connection between the heat dissipation tube (14) and the first fixing sleeve (15).

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