Multi-point thermal resistor based on air floatation support heat dissipation structure

Abstract

The invention relates to the technical field of thermal resistors, and discloses a multi-point thermal resistor based on an air floatation support heat dissipation structure, which comprises a junction box, the junction box is detachably provided with an insulation framework through an upper connecting pipe arranged at the bottom of the junction box, and the bottom of the insulation framework is fixedly connected with a resistor body. The outer surface of the circumference of the upper connecting pipe is in threaded connection with a protection pipe used for protecting the resistor body, and an air floating piece used for supporting the resistor body is arranged in the protection pipe. The multi-point type thermal resistor based on the air floatation supporting heat dissipation structure can effectively solve the problems that in the prior art, a mechanical supporting structure can hinder full contact between a temperature sensing element and a measured medium, the heat transfer speed is affected, and in the long-term use process of the thermal resistor, due to friction and vibration effects between the thermal resistor and a measured object, the thermal resistor is prone to damage. And mechanical wear is easy to generate, so that the supporting structure is loosened or damaged, and the normal work of the thermal resistor is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of thermal resistors, and in particular to a multi-point thermal resistor based on an air floating support heat dissipation structure. Background Art

[0002] A thermal resistor, also known as an RTD, uses the fact that the resistance value of a metal or metal oxide will change in a certain proportion according to the temperature change. A certain current is passed through the resistor element, and a data collector is used to collect the voltage across the resistor element. The resistance value is then calculated according to Ohm's law, thereby deriving the temperature.

[0003] In the prior art, a thermal resistor generally includes a terminal block, an insulating frame, a protective sleeve, and a temperature sensing element. The resistance wire of the temperature sensing element is evenly wound on the insulating frame, and the insulating frame and the temperature sensing element wound thereon are placed in the protective sleeve. A mechanical support structure is used between the insulating frame and the protective sleeve to fix the resistor body in the middle of the protective sleeve. However, the mechanical support structure will hinder the full contact between the temperature sensing element and the measured medium, affecting the heat transfer speed. In addition, during long-term use, the thermal resistor is prone to mechanical wear due to friction and vibration between the thermal resistor and the measured object, resulting in loosening or damage of the support structure, thereby affecting the normal operation of the thermal resistor. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a multi-point thermal resistor based on an air-floating support heat dissipation structure, which can effectively solve the problems in the prior art that the mechanical support structure hinders the full contact between the temperature sensing element and the measured medium, affecting the heat transfer speed, and the thermal resistor is prone to mechanical wear during long-term use due to friction and vibration between the thermal resistor and the measured object, resulting in loosening or damage of the support structure, thereby affecting the normal operation of the thermal resistor.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a multi-point thermal resistor based on an air-floating support heat dissipation structure, comprising:

[0008] A junction box, wherein the junction box is detachably mounted with an insulating frame through an upper pipe disposed at the bottom thereof, and a resistor is fixedly connected to the bottom of the insulating frame, a protective tube for protecting the resistor is threadedly connected to the circumferential outer surface of the upper pipe, and an air floating member for supporting the resistor is disposed in the protective tube;

[0009] Among them, the air flotation member includes a casing, the circumferential outer surface of the casing is fixedly connected to the inner wall of the protective tube, a ring groove is formed on the circumferential outer surface of the casing, and a plurality of such ring grooves are arranged in an array along the casing. Microholes are formed in the ring groove, and a plurality of such microholes are arranged in a circumferential array along the ring groove. A gas passage communicating with the ring groove is formed inside the protective tube;

[0010] Among them, a support member for limiting the resistor body is provided inside the casing.

[0011] Further, the microhole is of an integrated design, and the microhole includes a contraction section, a throat section, and a diffusion section. The contraction section communicates with the ring groove, and the gas passage communicates with an external gas input mechanism.

[0012] Further, the support member includes a fixed tube fixedly connected to the inner wall of the casing. A moving block is slidably connected inside the fixed tube. A limiting arc plate that fits against the circumferential outer surface of the insulating skeleton is fixedly connected to the side of the moving block away from the fixed tube. Three such limiting arc plates are arranged in a circumferential array along the insulating skeleton. A circular wire spring connected to the surface of the fixed tube is fixedly connected to the circumferential outer surface of the limiting arc plate. A limiting block is fixedly connected to the side of the limiting arc plate close to the insulating skeleton.

[0013] Further, a circular limiting groove that fits against the limiting block is formed on the circumferential outer surface of the insulating skeleton close to the resistor body side, and a circular card slot is formed in the circular limiting groove. A circular clamping block that fits against the circular card slot is fixedly connected to the side of the limiting block close to the circular limiting groove.

[0014] Further, two sliding holes are formed at the top of the fixed tube and are respectively communicated with the fixed tube. Movable blocks are slidably connected in the sliding holes. A sliding block that fits against the inclined surface of the movable block is slidably connected to the fixed tube through a chute provided at the top thereof. The bottom of the movable block on the side close to the limiting arc plate fits against the inclined surface of the moving block.

[0015] Further, an abutting block is slidably connected inside the fixed tube, and the top inclined surface of the abutting block fits against the bottom inclined surface of the movable block on the side away from the moving block. A return spring connected to the surface of the abutting block is fixedly connected to the fixed tube through a support plate provided at the end thereof.

[0016] Further, a diversion channel communicating with the gas passage is formed inside the casing.

[0017] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0018] The present invention is provided with an air floating member and a support member. By utilizing the compressibility and good thermal conductivity of gas, a uniform gas film is formed around the resistor body, reducing the thermal resistance and non-uniformity of heat transfer caused by mechanical contact. At the same time, it can isolate the influence of external environmental temperature changes on the resistor body, enabling the resistor body to more accurately measure the true temperature of the measured medium. Moreover, the resistor body is isolated from other components through the gas film, avoiding direct mechanical contact, greatly reducing friction and wear, and reducing the mechanical stress on the resistor body, thereby extending the service life of the thermal resistor, reducing the replacement frequency of the thermal resistor. Additionally, the limiting arc plates apply uniform pressure to the insulating skeleton from different directions, providing balanced support in the circumferential direction, and thus ensuring that the insulating skeleton is located at the center of the protection tube, guaranteeing that the central axes of the resistor body and the protection tube coincide with each other, ensuring a uniform gap between the resistor body of the thermal resistor and the protection tube, enabling the gas to flow uniformly in the gap to form a stable gas film, effectively isolating external vibration and impact, while ensuring the uniformity of heat transfer and improving the accuracy of temperature measurement of the thermal resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 is a sectional structural schematic diagram of the protection tube of an embodiment of the present invention;

[0022] Figure 3 is an embodiment of the present invention Figure 2 is an enlarged schematic diagram of the structure at A in the figure;

[0023] Figure 4 is a sectional structural schematic diagram of the sleeve of an embodiment of the present invention;

[0024] Figure 5 is an embodiment of the present invention Figure 4 is an enlarged schematic diagram of the structure at B in the figure;

[0025] Figure 6 is a three-dimensional separated structural schematic diagram of the support member of an embodiment of the present invention;

[0026] Figure 7 is a sectional structural schematic diagram of the flow dividing channel of an embodiment of the present invention;

[0027] Figure 8This is a schematic diagram of the cross-sectional structure of the casing and the protection tube according to an embodiment of the present invention;

[0028] Figure 9 For the embodiment of the present invention Figure 8 Enlarged schematic diagram of the structure at point C in the middle.

[0029] The numbers in the figure represent: 1. junction box; 11. insulating frame; 12. resistor; 13. protective tube; 14. air float; 141. sleeve; 142. ring groove; 143. micropore; 144. gas channel; 15. support; 151. fixed tube; 1511. sliding hole; 1512. movable block; 1513. sliding block; 152. moving block; 153. limiting arc plate; 1531. round wire spring; 1532. limiting block; 1533. annular clamping block; 154. annular limiting groove; 1541. annular clamping groove; 155. abutment block; 1551. reset spring; 156. shunt channel. DETAILED DESCRIPTION

[0030] 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.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] Example:

[0033] See also Figures 1 - 9 The present invention provides a technical solution: a multi-point thermal resistor based on an air-floating support heat dissipation structure, comprising:

[0034] A junction box 1, wherein the junction box 1 is detachably mounted with an insulating frame 11 through an upper pipe disposed at the bottom thereof, and a resistor 12 is fixedly connected to the bottom of the insulating frame 11, a protective tube 13 for protecting the resistor 12 is threadedly connected to the circumferential outer surface of the upper pipe, and an air floating member 14 for supporting the resistor 12 is disposed in the protective tube 13;

[0035] The air flotation member 14 includes a sleeve 141, the outer circumferential surface of the sleeve 141 is fixedly connected to the inner wall of the protection tube 13, the outer circumferential surface of the sleeve 141 is provided with an annular groove 142, and the annular groove 142 is provided with a plurality of micropores 143 and distributed in an array along the circumference of the annular groove 142, and the protection tube 13 is provided with a gas channel 144 connected to the annular groove 142;

[0036] Among them, a support member 15 for limiting the resistor body 12 is provided inside the sleeve 141.

[0037] The micropores 143 are of an integral design, and the micropores 143 include a contraction section, a throat section, and a diffusion section. The contraction section is communicated with the annular groove 142, and the gas channel 144 is communicated with an external gas input mechanism.

[0038] The support member 15 includes a fixed tube 151 fixedly connected to the inner wall of the sleeve 141. A moving block 152 is slidably connected inside the fixed tube 151. A limiting arc plate 153 that fits the circumferential outer surface of the insulating skeleton 11 is fixedly connected to one side of the moving block 152 away from the fixed tube 151. Three such limiting arc plates 153 are provided and are circumferentially arranged along the insulating skeleton 11. A circular wire spring 1531 connected to the surface of the fixed tube 151 is fixedly connected to the circumferential outer surface of the limiting arc plate 153. A limiting block 1532 is fixedly connected to one side of the limiting arc plate 153 close to the insulating skeleton 11.

[0039] An annular limiting groove 154 that fits the limiting block 1532 is provided on the circumferential outer surface of the insulating skeleton 11 close to the resistor body 12. An annular clamping groove 1541 is provided in the annular limiting groove 154. An annular clamping block 1533 that fits the annular clamping groove 1541 is fixedly connected to one side of the limiting block 1532 close to the annular limiting groove 154.

[0040] Two sliding holes 1511 are provided at the top of the fixed tube 151 and are respectively communicated with the fixed tube 151. Movable blocks 1512 are slidably connected in the sliding holes 1511. A sliding block 1513 that fits the inclined surface of the movable block 1512 is slidably connected to the fixed tube 151 through a chute provided at its top. The bottom of the movable block 1512 close to the limiting arc plate 153 is in contact with the inclined surface of the moving block 152.

[0041] An abutting block 155 is slidably connected inside the fixed tube 151. The top inclined surface of the abutting block 155 is in contact with the bottom inclined surface of the movable block 1512 on the side away from the moving block 152. A return spring 1551 connected to the surface of the abutting block 155 is fixedly connected to the fixed tube 151 through a support plate provided at its end.

[0042] A diversion channel 156 communicated with the gas channel 144 is provided inside the sleeve 141.

[0043] The principle and advantages of the multi-point thermal resistor based on the air-floating support heat dissipation structure:

[0044] During actual use, the operator installs the thermal resistor at the position to be detected according to the installation requirements of the thermal resistor, and at the same time connects the connecting pipe on the gas channel 144 to an external gas input mechanism. After the thermal resistor is installed, the external gas input mechanism will input gas into the gas channel 144, and use the annular groove 142 and the micro-holes 143 to introduce high-pressure gas between the resistor body 12 and the protective tube 13. The gas will form a uniform gas film in the narrow gap. This gas film has a certain stiffness and damping, can provide a supporting force to suspend the resistor body 12, avoid mechanical contact with it, and the gas film can effectively isolate external vibration and impact, playing a role in buffering and shock absorption. The low thermal conductivity and fluidity of the gas help to maintain the temperature uniformity around the thermal resistor, improve the heat transfer efficiency, and thus ensure that the thermal resistor can accurately measure the temperature of the object to be measured.

[0045] Since the micro-holes 143 adopt an integrated design and are provided with a contraction section, a throat section and a diffusion section, when the gas in the gas channel 144 enters the micro-holes 143 along the annular groove 142, the gas will first enter the contraction section. When the gas flows in the contraction section, due to the gradual decrease of the channel cross-sectional area, the gas flow rate will gradually increase. The increase in the flow rate will cause the static pressure energy of the gas to decrease, thus forming a certain negative pressure, which is beneficial to the rapid flow of the gas towards the throat section and creates conditions for the formation of high-speed gas in the throat section. The throat section is the part with the smallest cross-sectional area in the micro-holes 143. After the gas is accelerated in the contraction section, it reaches the highest speed in the throat section and forms a high-speed jet. At this time, the kinetic energy of the gas is the largest and the static pressure energy is the smallest, providing the initial power for the formation of the gas film. When the gas passes through the throat section and enters the diffusion section, due to the gradual increase of the cross-sectional area of the diffusion section, the gas flow rate gradually decreases and the static pressure energy gradually recovers, enabling the gas to uniformly diffuse around the thermal resistor, forming a gas film with a certain pressure and thickness. Moreover, the diffusion section can also make the gas pressure distribution in the gas film more uniform, enhancing the stability and load-bearing capacity of the gas film.

[0046] When the external gas input mechanism inputs gas into the gas channel 144, the gas will enter the diversion channel 156 along the gas channel 144 at this time. Thus, the gas flowing at high speed will pass by the side of the fixed tube 151 far from the limiting arc plate 153. When the gas near the fixed tube 151 flows at high speed, according to Bernoulli's principle, the pressure is low where the flow rate is large, and the pressure is high where the flow rate is small. Since the flow rate of the gas at the end of the fixed tube 151 increases sharply, the pressure here decreases. While the end of the fixed tube 151 far from the high-speed gas communicates with the atmosphere and maintains the atmospheric pressure, a pressure difference is formed, which can further push the abutting block 155 to move towards the low-pressure end (high-speed gas end), and the return spring 1551 is compressed. As the abutting block 155 moves, the inclined surface at the top of the abutting block 155 will contact and squeeze the inclined surface at the bottom of the movable block 1512 (far from the limiting arc plate 153). Thus, the movable block 1512 (far from the limiting arc plate 153) will move upward. With the cooperation of the sliding block 1513, the movable block 1512 (close to the limiting arc plate 153) will move downward. As the movable block 1512 (close to the limiting arc plate 153) contacts and squeezes the moving block 152, the moving block 152 will drive the limiting arc plate 153 to approach the insulating skeleton 11 until the limiting arc plate 153 fits against the circumferential outer surface of the insulating skeleton 11, and at the same time, the circular wire spring 1531 is stretched. After the limiting arc plate 153 fits against the circumferential outer surface of the insulating skeleton 11, the limiting block 1532 in the limiting arc plate 153 will be engaged in the annular limiting groove 154, and the annular clamping block 1533 on the limiting block 1532 will be engaged with the annular clamping groove 1541, thus completing the support and fixation of the insulating skeleton 11, and it can prevent the resistor body 12 from shaking when the thermal resistor is used under vibration conditions, affecting the normal use of the resistor body 12.

[0047] When the external gas input mechanism stops, the return spring 1551 will return to its initial position at this time, that is, the abutting block 155 will move to the initial position under the cooperation of the return spring 1551. Since the movable block 1512 (far from the limiting arc plate 153) loses the limitation of the abutting block 155, the movable block 1512 (far from the limiting arc plate 153) will move along the sliding hole 1511 into the fixed tube 151 under the cooperation of its own gravity. With the cooperation of the movable block 1512 (close to the limiting arc plate 153), the sliding block 1513 and the circular wire spring 1531, the limiting arc plate 153 can be gradually separated from the circumferential outer surface of the insulating skeleton 11, thus releasing the support and fixation of the insulating skeleton 11, which is convenient for later replacement and maintenance.

[0048] It should be noted that three limiting arc plates 153 approach the insulating skeleton 11 synchronously to complete the support and fixation of the insulating skeleton 11. The number of limiting arc plates 153 can be selected according to actual needs, and three are selected here. The three limiting arc plates 153 are simultaneously in contact with the insulating skeleton 11 to form a three-point support structure. This structure has high stability and strength. Compared with single-point or two-point support, three-point support can better disperse the external force borne by the insulating skeleton 11, reduce the situation of excessive local stress, and enhance the stability of the entire support structure.

[0049] The present invention adopts an air-floating support assembly, which has the following advantages:

[0050] Advantage 1: The air-floating member 14 makes the heat transfer between the resistor body 12 of the thermal resistor and the measured medium more stable and uniform. Utilizing the compressibility and good thermal conductivity of the gas, a uniform gas film is formed around the resistor body 12, reducing the thermal resistance and non-uniformity of heat transfer caused by mechanical contact. At the same time, the air-floating support can isolate the influence of external environmental temperature changes on the resistor body 12, enabling the resistor body 12 to more accurately measure the true temperature of the measured medium, significantly improving the measurement accuracy, and being able to more accurately reflect the temperature change of the measured object.

[0051] Advantage 2: Compared with the mechanical support method of traditional thermal resistors, the air-floating member 14 isolates the resistor body 12 from other components through the gas film, avoiding direct mechanical contact, greatly reducing friction and wear, and also being able to effectively buffer external impacts and vibrations, reducing the mechanical stress on the resistor body 12, thereby extending the service life of the thermal resistor, reducing the replacement frequency of the thermal resistor, lowering the maintenance cost and downtime, and improving the continuity and reliability of industrial production.

[0052] Advantage 3: There is no need for complex mechanical connection and fixing devices, simplifying the installation steps, making the installation process more convenient. Since the use of mechanical components is reduced, the complexity and workload of maintenance are reduced, the installation efficiency is improved, the equipment installation time is shortened, and at the same time, the maintenance difficulty and cost are also reduced.

[0053] Advantage 4: By allowing the gas to flow at high speed near the fixed tube 151, a low pressure is formed at the end of the fixed tube 151, creating a pressure difference with the atmospheric pressure at the end of the fixed tube 151 away from the high-speed gas, cleverly providing power for the movement of the abutting block 155 without the need for an additional power device. The structure is simple and energy-efficient. And during the fixing process, the limiting block 1532 in the limiting arc plate 153 is engaged with the annular limiting groove 154, and the annular clamping block 1533 on the limiting block 1532 is engaged with the annular clamping groove 1541. This multiple engagement structure makes the fixation of the insulating skeleton 11 more stable and reliable, and can effectively prevent the insulating skeleton 11 from displacing or shaking during the operation of the thermal resistor.

[0054] Advantage Five: The limiting arc plate 153 applies uniform pressure to the insulating skeleton 11 from different directions, enabling it to receive balanced support in the circumferential direction. As a result, it can ensure that the insulating skeleton 11 is located at the center of the protection tube 13, guaranteeing that the central axes of the resistance body 12 and the protection tube 13 coincide with each other. This can ensure that the gap between the resistance body 12 and the protection tube 13 of the thermal resistor is uniform, allowing gas to flow evenly in the gap to form a stable gas film. Furthermore, it can effectively isolate external vibrations and impacts, while ensuring the uniformity of heat transfer and improving the accuracy of the temperature measurement of the thermal resistor.

[0055] Advantage Six: The micropores 143 adopt an integrated design and are provided with a contraction section, a throat section, and a diffusion section. When gas passes through the micropores 143, since the cross-sectional area of the micropores 143 gradually changes, the gas flow rate will change, causing the static pressure energy to change synchronously. Thus, the gas can be evenly diffused around the thermal resistor to form a gas film with a certain pressure and thickness. Moreover, the diffusion section can make the gas pressure distribution in the gas film more uniform, enhancing the stability and load-bearing capacity of the gas film.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-point thermal resistor based on an air-floating support heat dissipation structure, characterized in that: include: A junction box (1), wherein the junction box (1) is detachably mounted with an insulating frame (11) via an upper pipe disposed at the bottom thereof, and a resistor (12) is fixedly connected to the bottom of the insulating frame (11), a protective tube (13) for protecting the resistor (12) is threadedly connected to the circumferential outer surface of the upper pipe, and an air floating member (14) for supporting the resistor (12) is disposed in the protective tube (13); The air flotation member (14) comprises a sleeve (141), the circumferential outer surface of the sleeve (141) is fixedly connected to the inner wall of the protection tube (13), the circumferential outer surface of the sleeve (141) is provided with an annular groove (142), and the annular groove (142) is provided with a plurality of micropores (143) and distributed in an array along the circumference of the annular groove (142), and the protection tube (13) is provided with a gas channel (144) connected to the annular groove (142); Wherein, a support member (15) which can be used to limit the position of the resistor (12) is provided in the sleeve (141).

2. A multi-point thermal resistor based on an air-floating support heat dissipation structure according to claim 1, characterized in that: The micropore (143) is of an integrated design and comprises a contraction section, a throat section and a diffusion section. The contraction section is connected to the annular groove (142), and the gas channel (144) is connected to an external gas input mechanism.

3. The multi-point thermal resistor based on an air-floating support heat dissipation structure according to claim 1, characterized in that: The support member (15) comprises a fixed tube (151), wherein the fixed tube (151) is fixedly connected to the inner wall of the sleeve (141), and a moving block (152) is slidably connected inside the fixed tube (151), and a limiting arc plate (153) which fits the circumferential outer surface of the insulating frame (11) is fixedly connected to the side of the moving block (152) away from the fixed tube (151), and the limiting arc plates (153) are provided with three and are distributed in an array along the circumference of the insulating frame (11), and a round wire spring (1531) which is connected to the surface of the fixed tube (151) is fixedly connected to the circumferential outer surface of the limiting arc plate (153), and the limiting arc plate (153) is fixedly connected to the limiting block (1532) on the side close to the insulating frame (11).

4. The multi-point thermal resistor based on an air-floating support heat dissipation structure according to claim 1, characterized in that: An annular limiting groove (154) which fits with the limiting block (1532) is provided on the circumferential outer surface of the insulating skeleton (11) close to the resistor (12), and an annular clamping groove (1541) is provided in the annular limiting groove (154); and an annular clamping block (1533) which fits with the annular clamping groove (1541) is fixedly connected to the side of the limiting block (1532) close to the annular limiting groove (154).

5. The multi-point thermal resistor based on the air-floating support heat dissipation structure according to claim 3 is characterized in that: The fixed tube (151) is provided with a sliding hole (1511) at the top, and the sliding holes (1511) are provided with two and are respectively connected to the fixed tube (151), and a movable block (1512) is slidably connected in each of the sliding holes (1511), and the fixed tube (151) is slidably connected with a sliding block (1513) that fits with the inclined surface of the movable block (1512) through a sliding groove arranged at the top thereof, and the bottom of the movable block (1512) close to the limiting arc plate (153) fits with the inclined surface of the movable block (152).

6. A multi-point thermal resistor based on an air-floating support heat dissipation structure according to claim 5, characterized in that: The fixed tube (151) is slidably connected with an abutment block (155), and the top inclined surface of the abutment block (155) is in contact with the bottom inclined surface of the movable block (1512) on the side away from the movable block (152). The fixed tube (151) is fixedly connected with a return spring (1551) connected to the surface of the abutment block (155) via a support plate arranged at the end thereof.

7. The multi-point thermal resistor based on an air-floating support heat dissipation structure according to claim 1, characterized in that: The sleeve (141) is provided with a flow diversion channel (156) which is connected to the gas channel (144).

Images