Switch tube mounting structure and switch tube temperature detection device
By designing a temperature sensing wire limiting groove and a mounting groove in the switching transistor mounting structure, the gap problem between the temperature sensing wire and the MOSFET was solved, and accurate detection of the switching transistor temperature was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, there is a gap between the temperature sensing wire and the MOSFET, which makes it impossible to accurately detect the temperature of the switching transistor.
A switch tube mounting structure is designed, including a pressure plate body and a temperature sensing wire mounting groove. By setting a temperature sensing wire limiting groove on the pressure plate body and a temperature sensing wire mounting groove on the switch tube mounting part, the temperature sensing wire can be directly attached to the switch tube, eliminating gaps.
It achieves seamless bonding between the temperature sensing wire and the switching transistor, enabling accurate detection of the switching transistor's temperature.
Smart Images
Figure CN224068953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to switching transistor devices, and more particularly to a switching transistor mounting structure and a switching transistor temperature detection device. Background Technology
[0002] Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is an important component on a circuit board. Its heat dissipation and temperature often affect the normal operation of the circuit board and even the entire electronic product, so its temperature needs to be monitored in real time.
[0003] In existing technologies, the temperature sensing wire is usually attached to the heat sink that is attached to the MOSFET, which results in a gap between the temperature sensing wire and the MOSFET. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a switch tube mounting structure and a switch tube temperature detection device that, in view of the above-mentioned defects of the prior art, allows the temperature sensing wire to be directly attached to the switch tube.
[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a switch tube mounting structure, including a pressure plate body, a switch tube mounting part disposed on the first side of the pressure plate body, and a temperature sensing wire mounting groove opened on the switch tube mounting part.
[0006] In the switch tube mounting structure described in this utility model, a temperature sensing wire limiting groove is formed on the pressure plate body at the position opposite to the temperature sensing wire mounting groove, and the width of the temperature sensing wire mounting groove is greater than the width of the temperature sensing wire limiting groove.
[0007] In the switch tube mounting structure of this utility model, a limiting part is provided in the middle of the first side of the pressure plate body. The switch tube mounting part includes a first switch tube mounting part and a second switch tube mounting part horizontally arranged on both sides of the limiting part. The temperature sensing wire mounting groove includes a first temperature sensing wire mounting groove and a second temperature sensing wire mounting groove. The temperature sensing wire limiting groove includes a first temperature sensing wire limiting groove and a second temperature sensing wire limiting groove. The first temperature sensing wire mounting groove is formed on the first switch tube mounting part. The second temperature sensing wire mounting groove is formed on the second switch tube mounting part. The first temperature sensing wire limiting groove is formed on the pressure plate body at the position directly opposite to the first temperature sensing wire mounting groove. The second temperature sensing wire limiting groove is formed on the pressure plate body at the position directly opposite to the second temperature sensing wire mounting groove.
[0008] In the switch tube mounting structure of this utility model, the first switch tube mounting part includes a first switch tube contact part disposed on the first side of the pressure plate body, a first positioning post disposed on the first switch tube contact part opposite to the through hole of the first switch tube, and a first temperature sensing wire mounting groove formed at the end of the first switch tube contact part away from the first positioning post; the second switch tube mounting part includes a second switch tube contact part disposed on the first side of the pressure plate body, a second positioning post disposed on the second switch tube contact part opposite to the through hole of the second switch tube, and a second temperature sensing wire mounting groove formed at the end of the second switch tube contact part away from the second positioning post.
[0009] In the switch tube mounting structure of this utility model, a first thermally conductive adhesive layer is provided on the surface of the first switch tube contact portion that contacts the first switch tube, and a second thermally conductive adhesive layer is provided on the surface of the second switch tube contact portion that contacts the second switch tube.
[0010] In the switch tube mounting structure of this utility model, the limiting part includes a mounting surface horizontally disposed on the first side of the pressure plate body and a rectangular limiting mounting frame vertically disposed around the mounting surface; the rectangular limiting mounting frame includes a first T-shaped mounting plate, a second T-shaped mounting plate, a third T-shaped mounting plate and a fourth T-shaped mounting plate; the first T-shaped mounting plate and the second T-shaped mounting plate are close to the first switch tube and limit the first switch tube, and the third T-shaped mounting plate and the fourth T-shaped mounting plate are close to the second switch tube and limit the second switch tube.
[0011] In the switching transistor mounting structure described in this utility model, the switching transistor includes a transistor, a MOSFET, and an IGBT.
[0012] Another technical solution adopted by this utility model to solve its technical problem is to construct a switching tube temperature detection device, including a switching tube, a temperature sensing wire, a pressure plate body, a switching tube mounting part disposed on a first side of the pressure plate body, and a temperature sensing wire mounting groove formed on the switching tube mounting part; a temperature sensing wire limiting groove is formed on the pressure plate body opposite to the temperature sensing wire mounting groove, and the width of the temperature sensing wire mounting groove is greater than the width of the temperature sensing wire limiting groove; the switching tube is mounted on the switching tube mounting part, and the temperature measuring probe of the temperature sensing wire is snapped into the temperature sensing wire mounting groove; the conductive wire of the temperature sensing wire is snapped into the temperature sensing wire limiting groove; a thermally conductive adhesive layer is provided on the surface of the switching tube mounting part that contacts the switching tube.
[0013] The switch tube mounting structure of this utility model provides a temperature sensing wire mounting groove on the switch tube mounting part. After the temperature sensing wire is installed into the temperature sensing wire mounting groove and the switch tube is installed into the switch tube mounting part, the temperature sensing wire can be directly attached to the switch tube, thereby achieving a seamless connection between the temperature sensing wire and the switch tube.
[0014] Another technical solution adopted by this utility model to solve its technical problem is to construct a switching tube temperature detection device, including a first switching tube, a second switching tube, a first temperature sensing wire, a second temperature sensing wire, and a pressure plate body; a limiting part is provided in the middle of the first side of the pressure plate body, and a first switching tube mounting part and a second switching tube mounting part are provided on both sides of the limiting part. A first temperature sensing wire mounting groove is formed on the first switching tube mounting part, and a second temperature sensing wire mounting groove is formed on the second switching tube mounting part; a first temperature sensing wire limiting groove is formed on the pressure plate body directly opposite the first temperature sensing wire mounting groove, and a second temperature sensing wire limiting groove is formed on the pressure plate body directly opposite the second temperature sensing wire mounting groove. A second temperature sensing wire limiting groove is provided; the width of the first temperature sensing wire mounting groove is greater than the width of the first temperature sensing wire limiting groove, and the width of the second temperature sensing wire mounting groove is greater than the width of the second temperature sensing wire limiting groove; the first switch tube is mounted on the first switch tube mounting part, the second switch tube is mounted on the second switch tube mounting part, and the temperature measuring probe of the first temperature sensing wire is snapped into the first temperature sensing wire mounting groove; the conductive wire of the first temperature sensing wire is snapped into the first temperature sensing wire limiting groove, the temperature measuring probe of the second temperature sensing wire is snapped into the second temperature sensing wire mounting groove, and the conductive wire of the second temperature sensing wire is snapped into the second temperature sensing wire limiting groove.
[0015] In the switching tube temperature detection device of this utility model, the first switching tube mounting part includes a first switching tube contact part disposed on the first side of the pressure plate body, a first positioning post disposed on the first switching tube contact part opposite to the through hole of the first switching tube, and a first temperature sensing wire mounting groove formed at the end of the first switching tube contact part away from the first positioning post; the second switching tube mounting part includes a second switching tube contact part disposed on the first side of the pressure plate body, a second positioning post disposed on the second switching tube contact part opposite to the through hole of the second switching tube, and a second temperature sensing wire mounting groove formed at the end of the second switching tube contact part away from the second positioning post; a first thermally conductive adhesive layer is disposed on the surface of the first switching tube contact part that contacts the first switching tube, and a second thermally conductive adhesive layer is disposed on the surface of the second switching tube contact part that contacts the second switching tube.
[0016] The switching tube temperature detection device of this utility model provides a temperature sensing wire mounting groove on the switching tube mounting part. After the temperature sensing wire is installed into the temperature sensing wire mounting groove and the switching tube is installed into the switching tube mounting part, the temperature sensing wire can be directly attached to the switching tube, thereby achieving a seamless connection between the temperature sensing wire and the switching tube. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0018] Figure 1 This is a first-angle structural schematic diagram of a preferred embodiment of the switch tube mounting structure of this utility model;
[0019] Figure 2 This is a second-angle structural schematic diagram of a preferred embodiment of the switch tube mounting structure of this utility model;
[0020] Figure 3 This is a third-angle structural schematic diagram of a preferred embodiment of the switch tube mounting structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the switch tube mounting structure of this utility model after the temperature sensing wire is installed;
[0022] Figure 5 This is an exploded view of the switching transistor temperature detection device of this utility model;
[0023] Figure 6 This is a schematic diagram of the first angle assembly of the switching transistor temperature detection device of this utility model;
[0024] Figure 7 This is a second-angle assembly diagram of the switching tube temperature detection device of this utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] Figure 1 This is a first-angle structural schematic diagram of a preferred embodiment of the switch tube mounting structure of this utility model. Figure 2 This is a second-angle structural schematic diagram of a preferred embodiment of the switch tube mounting structure of this utility model. Figure 3 This is a third-angle structural diagram of a preferred embodiment of the switch tube mounting structure of this utility model. Figure 4 This is a schematic diagram of the switch tube mounting structure of this utility model after the temperature sensing wire is installed.
[0027] like Figures 1-4 As shown, the switch tube mounting structure includes a pressure plate body 100, switch tube mounting portions 210 and 220 disposed on the first side of the pressure plate body 100, and temperature sensing wire mounting grooves 310 and 320 formed on the switch tube mounting portions 210 and 220.
[0028] In actual use, the two switching transistors can be installed into the switching transistor mounting parts 210 and 220 respectively, and then the two temperature sensing wires can be snapped into the temperature sensing wire mounting slots 310 and 320 respectively. In this way, the temperature sensing wires can directly fit into the corresponding switching transistors, thereby directly detecting their temperature.
[0029] exist Figure 1 In the preferred embodiment shown, although two switch tube mounting portions 210 and two corresponding temperature sensor mounting slots 310 and 320 are illustrated, those skilled in the art will understand that any number of switch tube mounting portions and temperature sensor mounting slots can actually be used, all of which fall within the protection scope of this utility model. Those skilled in the art, based on the teachings of this utility model, can construct and implement such a switch tube mounting structure, which will not be elaborated upon here.
[0030] The switch tube mounting structure of this utility model provides a temperature sensing wire mounting groove on the switch tube mounting part. After the temperature sensing wire is installed into the temperature sensing wire mounting groove and the switch tube is installed into the switch tube mounting part, the temperature sensing wire can be directly attached to the switch tube, thereby achieving a seamless connection between the temperature sensing wire and the switch tube. Therefore, the temperature of the switch tube itself can be accurately detected.
[0031] exist Figure 1 In the preferred embodiment shown, temperature sensing wire limiting grooves 410 and 420 are respectively provided on the pressure plate body 100 at positions directly opposite to the temperature sensing wire mounting grooves 310 and 320, and the width of the temperature sensing wire mounting grooves 310 and 320 is greater than the width of the temperature sensing wire limiting grooves 410 and 420.
[0032] like Figure 4As shown, since the temperature sensing wire 500 typically includes a temperature probe 510 and a conductive wire 520, and the width of the temperature probe 510 is often greater than the width of the conductive wire 520, the width of the temperature sensing wire mounting grooves 310 and 320 can be designed to be larger to match the width of the temperature probe 510, thus ensuring that it is fixed in the temperature sensing wire mounting grooves 310 and 320 without protruding. At the same time, the temperature sensing wire limiting grooves 410 and 420 are designed to be narrower, with a width smaller than the width of the temperature probe 510 and matching the width of the conductive wire 520. Therefore, on the one hand, this prevents the temperature probe 510 from falling out of the temperature sensing wire mounting grooves 310 and 320, and on the other hand, it secures and fixes the conductive wire 520. In a further preferred embodiment of this utility model, the temperature probe 510 and the conductive wire 520 can be fixed in the temperature sensing wire mounting grooves 310 and 320 and the temperature sensing wire limiting grooves 410 and 420 respectively by sealing glue, and a thermally conductive adhesive layer (silicone grease or gel) is provided on the surface of the switch tube mounting parts 210 and 220 that contacts the first and second switch tubes to ensure that the switch tube mounting parts 210 and 220 can fully contact the surface of the switch tubes after the switch tubes are installed.
[0033] In a further preferred embodiment of the present invention, the first and second switching transistors may include transistors, MOSFETs, and insulated-gate bipolar transistors (IGBTs).
[0034] Further as Figures 1-4 As shown, a limiting part 400 is provided in the middle of the first side of the pressure plate body 100. The switch tube mounting part 210 and the switch tube mounting part 220 are horizontally arranged on both sides of the limiting part 400. The switch tube mounting part 210 has a temperature sensing wire mounting groove 310; the switch tube mounting part 220 has a temperature sensing wire mounting groove 320; the pressure plate body 100 has a temperature sensing wire limiting groove 410 at a position directly opposite to the temperature sensing wire mounting groove 310, and the pressure plate body 100 has a temperature sensing wire limiting groove 420 at a position directly opposite to the temperature sensing wire mounting groove 320. In particular, as shown... Figure 1 As shown, the temperature sensing wire mounting groove 310, temperature sensing wire mounting groove 320, temperature sensing wire limiting groove 410 and temperature sensing wire limiting groove 420 are preferably rectangular grooves.
[0035] Further as Figures 1-4As shown, the switch tube mounting portion 210 includes a switch tube contact portion 211 disposed on the first side of the pressure plate body 100. A positioning post 212 is provided on the switch tube contact portion 211 opposite to the through hole of the first switch tube. The temperature sensing wire mounting groove 310 is formed at the end of the switch tube contact portion 211 away from the positioning post 212. The switch tube mounting portion 220 includes a switch tube contact portion 221 disposed on the first side of the pressure plate body 100. A positioning post 222 is provided on the switch tube contact portion 221 opposite to the through hole of the second switch tube. The temperature sensing wire mounting groove 320 is formed at the end of the switch tube contact portion 221 away from the positioning post 222. By providing the positioning posts 212 and 212, the switch tube can be positioned using the through hole of the switch tube. The positioning posts 212 and 212 are preferably elastic protrusions.
[0036] In a further preferred embodiment of this utility model, a first thermally conductive adhesive layer is provided on the surface of the switch tube contact portion 221 that contacts the first switch tube, and a second thermally conductive adhesive layer is provided on the surface of the switch tube contact portion 222 that contacts the second switch tube. The design of the thermally conductive adhesive layer ensures that after the switch tubes are installed, the switch tube mounting portions 210 and 220 can make full contact with the surface of the switch tubes.
[0037] Further as Figures 1-4 As shown, the limiting part 400 includes a mounting surface 410 horizontally disposed on the first side of the pressure plate body 100 and a rectangular limiting mounting frame 420 vertically disposed around the mounting surface 410. The rectangular limiting mounting frame 420 includes a T-shaped mounting plate 421, a T-shaped mounting plate 422, a T-shaped mounting plate 423, and a T-shaped mounting plate 424; the T-shaped mounting plates 421 and 422 are close to and limit the first switch tube, and the T-shaped mounting plates 423 and 424 are close to and limit the second switch tube. By setting the T-shaped mounting plates, when one side of the switch tube shifts, it will press against the side of the T-shaped mounting plate close to the switch tube, thus realizing the limiting function. The whole design is ingenious, simple in structure, and easy to manufacture.
[0038] Figure 5 This is an exploded view of the switching transistor temperature detection device of this utility model. Figure 6 This is a first-angle assembly diagram of the switching transistor temperature detection device of this utility model. Figure 7 This is a second-angle assembly diagram of the switching transistor temperature detection device of this utility model. The structure of the pressure plate body 100, the switching transistor mounting parts 210 and 220, the temperature sensing wire mounting groove 310 and 320, and the temperature sensing wire limiting grooves 410 and 420 can be referenced here. Figures 1-4 Combining Figures 1-4 ,as well as Figures 5-7As shown, the switching tube temperature detection device includes switching tubes 610 and 620, two temperature sensing wires 500 (only one is shown), a pressure plate body 100, switching tube mounting portions 210 and 220 disposed on the first side of the pressure plate body 100, and temperature sensing wire mounting grooves 310 and 320 formed on the switching tube mounting portions 210 and 220; temperature sensing wire limiting grooves 410 and 420 are respectively formed on the pressure plate body 100 opposite to the temperature sensing wire mounting grooves 310 and 320, and the width of the temperature sensing wire mounting grooves 310 and 320 is greater than the width of the temperature sensing wire limiting grooves 410 and 420. The switching transistors 610 and 620 are mounted on the switching transistor mounting portions 210 and 220, respectively. The temperature probe 510 of the temperature sensing wire 500 is respectively snapped into the temperature sensing wire mounting grooves 310 and 320; the conductive wire 520 of the temperature sensing wire 500 is respectively snapped into the temperature sensing wire limiting grooves 410 and 420. Thermally conductive adhesive layers are respectively provided on the surfaces of the switching transistors 610 and 620 that are in contact with the switching transistors on the switching transistor mounting portions 210 and 220.
[0039] like Figures 5-7 As shown, in a preferred embodiment of this utility model, the switching tube temperature detection device includes a switching tube 610, a switching tube 620, a first temperature sensing wire 500, a second temperature sensing wire 500, and a pressure plate body 100; a limiting part 400 is provided in the middle of the first side of the pressure plate body 100, and a switching tube mounting part 210 and a switching tube mounting part 220 are provided on both sides of the limiting part 400. A temperature sensing wire mounting groove 310 is provided on the switching tube mounting part 210, and a temperature sensing wire mounting groove 320 is provided on the switching tube mounting part 220; a temperature sensing wire limiting groove 410 is provided on the pressure plate body 100 directly opposite the temperature sensing wire mounting groove 310, and a temperature sensing wire is provided on the pressure plate body 100 directly opposite the temperature sensing wire mounting groove 320. The temperature sensing wire mounting groove 310 has a width greater than the temperature sensing wire limiting groove 410, and the temperature sensing wire mounting groove 320 has a width greater than the temperature sensing wire limiting groove 420. The switch tube 610 is mounted on the switch tube mounting part 210, and the switch tube 620 is mounted on the switch tube mounting part 220. The temperature measuring probe 510 of the first temperature sensing wire 500 is snapped into the temperature sensing wire mounting groove 310. The conductive wire 520 of the first temperature sensing wire 500 is snapped into the temperature sensing wire limiting groove 410, and the temperature measuring probe 510 of the second temperature sensing wire 500 is snapped into the temperature sensing wire mounting groove 320. The conductive wire 520 of the second temperature sensing wire 500 is snapped into the temperature sensing wire limiting groove 420. In a further preferred embodiment of this utility model, the temperature probe 510 and the conductive wire 520 can be fixed in the temperature sensing wire mounting grooves 310 and 320 and the temperature sensing wire limiting grooves 410 and 420 respectively by sealing glue.
[0040] Preferably, the switch tube mounting portion 210 includes a switch tube contact portion 211 disposed on the first side of the pressure plate body 100, a positioning post 212 is provided at the position of the switch tube contact portion 211 opposite to the through hole of the switch tube 610, and the temperature sensing wire mounting groove 310 is formed at the end of the switch tube contact portion 211 away from the positioning post 212; the switch tube mounting portion 220 includes a switch tube contact portion 221 disposed on the first side of the pressure plate body 100, a positioning post 222 is provided at the position of the switch tube contact portion 221 opposite to the through hole of the switch tube 620, and the temperature sensing wire mounting groove 320 is formed at the end of the switch tube contact portion 221 away from the positioning post 222. In a further preferred embodiment of the present invention, a first thermally conductive adhesive layer is provided on the surface of the switch tube contact portion 221 that contacts the switch tube 610, and a second thermally conductive adhesive layer is provided on the surface of the switch tube contact portion 222 that contacts the switch tube 620. The design of the thermally conductive adhesive layer ensures that after the switch tubes are installed, the mounting parts 210 and 220 of the switch tubes can make full contact with the surfaces of the switch tubes 610 and 620.
[0041] The limiting part 400 includes a mounting surface 410 horizontally disposed on the first side of the pressure plate body 100 and a rectangular limiting mounting frame 420 vertically disposed around the mounting surface 410. The rectangular limiting mounting frame 420 includes a T-shaped mounting plate 421, a T-shaped mounting plate 422, a T-shaped mounting plate 423, and a T-shaped mounting plate 424. The T-shaped mounting plates 421 and 422 are close to and limit the switch tube 610, and the T-shaped mounting plates 423 and 424 are close to and limit the switch tube 620. By setting the T-shaped mounting plates, when one side of the switch tube shifts, it will abut against the side of the T-shaped mounting plate closest to the switch tube, thus achieving the limiting function. The entire design is ingenious, simple in structure, and easy to manufacture.
[0042] The switching tube temperature detection device of this utility model provides a temperature sensing wire mounting groove on the switching tube mounting part. After the temperature sensing wire is installed into the temperature sensing wire mounting groove and the switching tube is installed into the switching tube mounting part, the temperature sensing wire can be directly attached to the switching tube, thereby accurately detecting the temperature of the switching tube itself.
[0043] Although this utility model has been described through specific embodiments, those skilled in the art should understand that various modifications and equivalent substitutions can be made to this utility model without departing from its scope. Furthermore, various modifications can be made to this utility model for specific situations or materials without departing from its scope. Therefore, this utility model is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims of this utility model.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A switching transistor mounting structure characterized by comprising: The switch tube mounting part is arranged on the first side surface of the pressing plate body, and the temperature sensing wire mounting slot is arranged on the switch tube mounting part.
2. The switching tube mounting structure according to claim 1, wherein The first switch tube mounting part is arranged on the first side surface of the pressing plate body, and the first temperature sensing wire mounting slot is arranged on the first switch tube mounting part.
3. The switching tube mounting structure according to claim 2, wherein The first switch tube mounting part is arranged on the first side surface of the pressing plate body, and the first temperature sensing wire mounting slot is arranged on the first switch tube mounting part.
4. The switching tube mounting structure according to claim 3, wherein The first switch tube mounting part is arranged on the first side surface of the pressing plate body, and the first temperature sensing wire mounting slot is arranged on the first switch tube mounting part.
5. The switching tube mounting structure according to claim 4, wherein The first switch tube mounting part is arranged on the first side surface of the pressing plate body, and the first temperature sensing wire mounting slot is arranged on the first switch tube mounting part.
6. The switching tube mounting structure according to any one of claims 3 to 5, characterized by The switch tube includes a triode, an MOS tube and an IGBT tube.
7. A switching tube temperature detecting device characterized by comprising: The switch tube, the temperature sensing wire, the pressing plate body, the switch tube mounting portion arranged on the first side surface of the pressing plate body, and the temperature sensing wire mounting slot opened on the switch tube mounting portion are included; the temperature sensing wire limiting slot is opened on the pressing plate body at the position opposite to the temperature sensing wire mounting slot, the width of the temperature sensing wire mounting slot is greater than the width of the temperature sensing wire limiting slot; the switch tube is mounted on the switch tube mounting portion, the temperature sensing probe of the temperature sensing wire is clamped in the temperature sensing wire mounting slot, the conducting wire of the temperature sensing wire is clamped in the temperature sensing wire limiting slot, and the surface of the switch tube mounting portion in contact with the switch tube is provided with a heat-conducting adhesive layer.
8. A switching tube temperature detecting device characterized by comprising: The first switch tube, the second switch tube, the first temperature sensing wire, the second temperature sensing wire, and the pressing plate body are included; the middle part of the first side surface of the pressing plate body is provided with a limiting portion, the first switch tube mounting portion and the second switch tube mounting portion are arranged on the two sides of the limiting portion, the first temperature sensing wire mounting slot is opened on the first switch tube mounting portion, and the second temperature sensing wire mounting slot is opened on the second switch tube mounting portion; the first temperature sensing wire limiting slot is opened on the pressing plate body at the position opposite to the first temperature sensing wire mounting slot, and the second temperature sensing wire limiting slot is opened on the pressing plate body at the position opposite to the second temperature sensing wire mounting slot; the width of the first temperature sensing wire mounting slot is greater than the width of the first temperature sensing wire limiting slot, and the width of the second temperature sensing wire mounting slot is greater than the width of the second temperature sensing wire limiting slot; the first switch tube is mounted on the first switch tube mounting portion, the second switch tube is mounted on the second switch tube mounting portion, the temperature sensing probe of the first temperature sensing wire is clamped in the first temperature sensing wire mounting slot, the conducting wire of the first temperature sensing wire is clamped in the first temperature sensing wire limiting slot, the temperature sensing probe of the second temperature sensing wire is clamped in the second temperature sensing wire mounting slot, and the conducting wire of the second temperature sensing wire is clamped in the second temperature sensing wire limiting slot.
9. The switching tube temperature detecting apparatus according to claim 8, wherein The first switch tube mounting portion includes the first switch tube contact portion arranged on the first side surface of the pressing plate body, the first positioning column is arranged at the position of the first switch tube contact portion opposite to the via hole of the first switch tube, and the first temperature sensing wire mounting slot is opened at one end of the first switch tube contact portion away from the first positioning column; the second switch tube mounting portion includes the second switch tube contact portion arranged on the first side surface of the pressing plate body, the second positioning column is arranged at the position of the second switch tube contact portion opposite to the via hole of the second switch tube, and the second temperature sensing wire mounting slot is opened at one end of the second switch tube contact portion away from the second positioning column; the first heat-conducting adhesive layer is arranged on the surface of the first switch tube contact portion in contact with the first switch tube, and the second heat-conducting adhesive layer is arranged on the surface of the second switch tube contact portion in contact with the second switch tube.