Electric control cabinet with high heat dissipation performance

Abstract

According to the high-heat-dissipation electric control cabinet applied to the technical field of electric control cabinets, through arrangement of the heat translation unit, part of heat in the cabinet can be directly guided towards the back face of the electric cabinet body, compared with the prior art, the heat accumulation position can be effectively transferred from the interior of the electric cabinet body to the exterior of the electric cabinet body, and the heat dissipation performance of the electric control cabinet is improved. Meanwhile, through continuous gathering and dispersing changes of the heat translation units, heat can be rapidly absorbed during gathering, heat is transmitted between solids, diffusion towards the expanded section side is accelerated, the heat is in a dispersed state after heat absorption, the direct contact area between the heat and air can be quantitatively changed, and then diffusion of the gathered heat towards the outside air is obviously accelerated; therefore, the heat dissipation efficiency is greatly improved, electrical elements in the electrical cabinet body are not easy to operate and work in a high-value area with safe operation temperature for a long time, and the service life of the electrical elements is effectively ensured.

Description

Technical Field

[0001] The present invention relates to an electric control cabinet with high heat dissipation, and in particular to an electric control cabinet with high heat dissipation applied in the technical field of electric control cabinets. Background Art

[0002] The electric control cabinet is a control cabinet (box) that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. Its layout should meet the requirements of normal operation of the power system, facilitate maintenance, and not endanger the safety of people and surrounding equipment. It includes (distribution cabinet) (distribution box) (electrical control cabinet), etc. In normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. In case of fault or abnormal operation, the circuit can be cut off or alarmed with the help of protective electrical appliances. Various parameters in operation can be displayed by measuring instruments, and certain electrical parameters can also be adjusted, and prompts or signals can be issued for deviations from normal working conditions. It is often used in various power generation, distribution and substations.

[0003] Since a large number of electrical components are integrated in the electric control cabinet, the heat generated during operation is relatively serious, so that the electric control cabinet is often in a state of high-temperature operation, which affects the service life of the internal electrical components. In the prior art, heat dissipation is generally only provided with heat dissipation holes. For the electric control cabinet with more serious heat generation, a heat dissipation fan is sometimes also provided to accelerate the circulation of air inside and outside the cabinet, so as to achieve rapid heat dissipation. For example, the electric control cabinet disclosed in the specification of Chinese patent CN107750115A, the electric control cabinet heat dissipation system and the marine electric control cabinet disclosed in the specification of Chinese patent CN115912140A, etc.

[0004] However, the cooling effect of the cooling fan is limited, and it is difficult to meet the cooling needs of the electrical control cabinet that is always powered on. Although the temperature during operation can be controlled within the safe operating temperature range, the temperature is often closer to the high value, which causes the service life of the electrical components to be affected to a certain extent. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the electric control cabinet is prone to heat or even heat accumulation, which affects the service life of the electrical components therein.

[0006] In order to solve the above problems, the present invention provides an electric control cabinet with high heat dissipation, comprising an electric cabinet body, a temperature sensor is installed in the electric cabinet body, long heat dissipation holes are drilled at the lower parts of the left and right ends of the electric cabinet body, a cabinet door is installed at the front end of the electric cabinet body, an outer cover is fixedly connected to the upper right end of the electric cabinet body, a filter is clamped on the outward end face of the outer cover, an exhaust fan is installed inside the outer cover, the air inlet end of the exhaust fan is communicated with the inside of the electric cabinet body, the exhaust end of the exhaust fan faces the filter, a heat translation unit is arranged on the back of the electric cabinet body, a protective cover is also fixedly connected to the back of the electric cabinet body by bolts, and the protective cover is arranged on the outside of the heat translation unit; The heat translation unit includes a heat transfer back plate fixedly attached to the back of the electrical cabinet body and a plurality of variable heat strips inserted on the heat transfer back plate. The heat transfer back plate is provided with a plurality of embedded grooves respectively matching the plurality of variable heat strips. The ends of the plurality of variable heat strips penetrate the side ends of the heat transfer back plate and extend to the outside of the side ends. A synchronization rod is fixedly connected between the ends of two adjacent variable heat strips located outside the heat transfer back plate. An electric push rod is fixedly connected between the middle of the synchronization rod and the inner wall of the protective cover. The extended end of the electric push rod faces one side of the synchronization rod. The variable heat strip includes a heat absorption layer located in the heat transfer back plate and a plurality of heat collecting laminates fixedly connected to the end of the heat absorption layer away from the heat transfer back plate.

[0007] In the above-mentioned high heat dissipation electrical control cabinet, through the setting of the heat translation unit, part of the heat in the cabinet can be directly guided toward the back of the electrical cabinet body. Compared with the existing technology, the location of heat accumulation can be effectively transferred from the inside of the electrical cabinet body to the outside of the electrical cabinet body. At the same time, through its continuous gathering and dispersion changes, the transfer of accumulated heat and its diffusion to the outside air can be further accelerated, thereby greatly accelerating the heat dissipation efficiency, making it difficult for electrical components in the electrical cabinet body to operate in the high value area of ​​safe operating temperature for a long time, thereby effectively ensuring its service life.

[0008] As a further improvement of the present application, the opening directions of two adjacent embedded grooves are different, and the quantitative change strips in the two adjacent embedded grooves are staggered. When the heat absorption layer contacts the vertical inner wall of the embedded groove, the length of the heat collecting stack in the embedded groove is not less than 1 / 3 of the overall length.

[0009] As a further improvement of the present application, cylindrical bars are rollingly embedded in the upper and lower inner walls of the embedded groove, and the two cylindrical bars are respectively in rolling contact with adjacent heat-collecting laminates.

[0010] As a further improvement of the present application, the heat-collecting stack includes an expanded section, a heat-conducting section and a main expansion section fixedly connected therebetween, the heat-conducting section is fixedly connected to the heat-absorbing layer, the expanded section and the heat-conducting section are both made of hard heat-conducting materials, the main expansion section is made of a curved arc-shaped elastic material, and the thermal conductivity of the heat-conducting section, the main expansion section and the expanded section increases sequentially.

[0011] As a further improvement of the present application, along the direction from the center to the upper and lower sides, the bending amplitudes of the plurality of main expansion sections in a natural state gradually increase.

[0012] As another improvement of the present application, a piezoelectric module is also installed on the vertical inner wall of the embedded groove, a cooling plate is embedded inside the heat transfer back plate, the cooling end of the cooling plate faces the electrical cabinet body, and an energy storage battery is also installed in the protective cover. The piezoelectric module and the cooling plate are electrically connected to the energy storage battery, and the vertical span of the cooling plate is greater than the vertical distribution range of the multiple variable strips.

[0013] As another improvement of the present application, a long hole for storing the strip is bored inside the heat conduction section, a compensation hole is bored inside the main expansion section, and the long hole for storing the strip and the compensation hole are interconnected, a pre-substitute lining strip is clamped inside the long hole for storing the strip, and the end of the pre-substitute lining strip extends into the compensation hole, one end of the pre-substitute lining strip located in the compensation hole is recessed, and a laser rangefinder is installed on the inner wall of the recess, the laser rangefinder is coaxial with the compensation hole, and a magnetic sheet is pasted on the other end of the pre-substitute lining strip.

[0014] As another improvement of the present application, a supplementary pre-substitute lining strip includes an elastic rod body and a plurality of outward expansion strips fixedly connected to the outer end of the elastic rod, the plurality of outward expansion strips are distributed in a ring array, the middle portion of the elastic rod body is opened, the two ends of the outward expansion strip are respectively located at the mouth of the left and right edges, and the outward expansion strip is an arc-shaped structure arched outward, the outward expansion strip is in contact with the inner wall of the long hole for storing the strip, and one end of the elastic rod body is in conflict with the mouth of the compensation hole.

[0015] In summary, through the setting of the heat translation unit, part of the heat in the cabinet can be directly guided toward the back of the electrical cabinet body. Compared with the existing technology, the location of heat accumulation can be effectively transferred from the inside of the electrical cabinet body to the outside of the electrical cabinet body. At the same time, through the continuous gathering and dispersion changes of the heat translation unit, it can quickly absorb heat during accumulation, so that heat is transferred between solid and solid, and the diffusion to the side of the expanded section is accelerated. After absorbing heat, it is in a dispersed state, which can cause a quantitative change in the area directly in contact with the air, and then significantly accelerate the diffusion of the accumulated heat to the outside air, thereby greatly accelerating the heat dissipation efficiency, making it difficult for electrical components in the electrical cabinet body to operate in the high value area of ​​the safe operating temperature for a long time, thereby effectively ensuring its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a back perspective stereogram of the first embodiment of the present application; Figure 2 It is a right side perspective view of the first embodiment of the present application; Figure 3 This is a three-dimensional view of the first embodiment of the present application from the right side when the protective cover is removed; Figure 4 A three-dimensional diagram of a heat translation unit according to a first embodiment of the present application; Figure 5 A side cross-sectional view of the variable strip portion of the first embodiment of the present application; Figure 6 It is a side cross-sectional view of the first embodiment of the present application when the variable strip is in a spread state; Figure 7 This is a three-dimensional diagram of the cooling fan and the protective cover connected in the first embodiment of the present application; Figure 8 This is a side schematic diagram of a heat translation unit according to a second embodiment of the present application; Fig. 9 This is a process diagram of performing lining replacement after an abnormality occurs in the heat-collecting stack in the third embodiment of the present application; Fig.10 This is a three-dimensional diagram of a pre-substitute liner strip according to a third embodiment of the present application.

[0017] Description of the numbers in the figure: 1 electrical cabinet body, 101 heat dissipation slot, 102 cabinet door, 2 outer cover, 201 filter, 3 protective cover, 301 air duct, 4 heat transfer back plate, 401 cylindrical bar, 5 variable strip, 51 heat absorption layer, 52 heat collection stack, 521 expanded section, 522 main expansion section, 523 heat conduction section, 61 synchronization rod, 62 electric push rod, 71 piezoelectric module, 72 cooling plate, 8 pre-substitute lining strip, 81 elastic rod body, 82 external expansion strip, 801 storage slot, 802 compensation hole, 9 laser rangefinder. DETAILED DESCRIPTION

[0018] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-2 It is shown that a high heat dissipation electric control cabinet comprises an electric cabinet body 1, a temperature sensor is installed in the electric cabinet body 1, long heat dissipation holes 101 are drilled at the lower parts of the left and right ends of the electric cabinet body 1, a cabinet door 102 is installed at the front end of the electric cabinet body 1, an outer cover 2 is fixedly connected to the upper right end of the electric cabinet body 1, a filter screen 201 is clamped on the outward end face of the outer cover 2, an exhaust fan is installed inside the outer cover 2, the air inlet end of the exhaust fan is communicated with the inside of the electric cabinet body 1, and the exhaust end of the exhaust fan faces the filter screen 201, a heat translation unit is arranged on the back of the electric cabinet body 1, and a protective cover 3 is also fixedly connected to the back of the electric cabinet body 1 by bolts, the protective cover 3 is arranged on the outside of the heat translation unit, and the end face of the protective cover 3 facing the heat translation unit is a porous structure, so that the heat adsorbed by the heat translation unit can quickly cross the protective cover 3 and diffuse to the outside; like Figure 3-4The heat translation unit includes a heat transfer back plate 4 fixedly attached to the back of the electrical cabinet body 1 and a plurality of variable strips 5 inserted on the heat transfer back plate 4. The heat transfer back plate 4 is provided with a plurality of embedded grooves respectively matching the plurality of variable strips 5. The ends of the plurality of variable strips 5 penetrate the side ends of the heat transfer back plate 4 and extend to the outside of the side ends. A synchronization rod 61 is fixedly connected between the ends of two adjacent variable strips 5 located outside the heat transfer back plate 4. An electric push rod 62 is fixedly connected between the middle part of the synchronization rod 61 and the inner wall of the protective cover 3. The extended end of the electric push rod 62 faces one side of the synchronization rod 61. It is worth noting that the staggered variable strips 5 are divided into two groups under the action of the synchronization rod 61, and the movement states of the two groups of variable strips 5 are opposite. When one group moves in the embedded groove to absorb heat, the multiple expanded sections 521 and the main expanded sections 522 of the other group are all located outside the embedded groove, showing a dispersed state for heat dissipation.

[0020] like Figure 5 The quantitative change strip 5 includes a heat absorption layer 51 located in the heat transfer back plate 4 and a plurality of heat collecting laminates 52 fixedly connected to the end of the heat absorption layer 51 away from the heat transfer back plate 4. The heat collecting laminate 52 includes an expanded section 521, a heat conducting section 523 and a main expanded section 522 fixedly connected therebetween. The heat conducting section 523 is fixedly connected to the heat absorption layer 51. The expanded section 521 and the heat conducting section 523 are both made of hard heat conducting materials. The main expanded section 522 is made of a curved elastic material. Figure 6 When the variable strip 5 moves out of the inner groove under the action of the electric push rod 62, the main expansion section 522 recovers its deformation, which will cause the multiple heat-conducting sections 523 to expand outward naturally, presenting a state of non-contact between each other, and the thermal conductivity of the heat-conducting section 523, the main expansion section 522 and the expanded section 521 increases in sequence, so that the heat in the electrical cabinet body 1 can be quickly transferred outward along the heat transfer back plate 4 and the variable strip 5, so that the location where heat is concentrated is transferred from the inside of the electrical cabinet body 1 to the outside of the electrical cabinet body 1, thereby effectively protecting the electrical components in the electrical cabinet body 1, and not easily affecting the service life due to high temperature.

[0021] The upper and lower inner walls of the embedded groove are both rollingly embedded with cylindrical bars 401, and the two cylindrical bars 401 are respectively in rolling contact with the adjacent heat-collecting stacks 52, which can transform the sliding friction between the heat-collecting stacks 52 and the embedded groove into rolling friction, thereby effectively reducing the friction force, so that the quantity-changing bar 5 has better smoothness when entering and exiting the embedded groove, making the heat absorption and heat dissipation process more continuous and more efficient.

[0022] Along the direction from the center to the upper and lower sides, the bending amplitude of the plurality of main expansion sections 522 in the natural state gradually increases, such as Figure 6When the heat-collecting stack 52 is gradually moved away from the embedded groove so that the main expansion section 522 is exposed outside the embedded groove, the multiple main expansion sections 522 return to their original shapes without the restraining force of the embedded groove, so that the multiple expanded sections 521 spread outward at different amplitudes, and thus two adjacent expanded sections 521 do not contact each other, so that the contact surface with the outside air can be maintained at the maximum state, effectively ensuring the heat dissipation effect.

[0023] The opening directions of two adjacent embedded grooves are different, and the quantitative change strips 5 in the two adjacent embedded grooves are staggered. When the heat absorption layer 51 contacts the vertical inner wall of the embedded groove, the length of the heat-collecting laminate 52 in the embedded groove is not less than 1 / 3 of the overall length. At this time, the contact point between the cylindrical strip 401 and the heat-collecting laminate 52 is located at the end of the main expansion section 522 away from the heat absorption layer 51, and the main expansion section 522 is completely located in the embedded groove, which effectively ensures that when the quantitative change strip 5 enters the embedded groove, multiple expanded sections 521 can be constrained and gathered, so that the entire heat-collecting laminate 52 presents an integrated contact with each other. When absorbing heat, the heat transfer in the quantitative change strip 5 is solid-to-solid transfer, thereby effectively ensuring the heat transfer effect.

[0024] In summary, when the temperature sensor detects that the temperature inside the electrical cabinet body 1 is high, on the one hand, the exhaust fan works to extract the hot air from the electrical cabinet body 1, and the fresh air from the outside automatically enters the electrical cabinet body 1 along the multiple heat dissipation holes 101, so as to realize the rapid discharge of heat. Through the setting of the heat translation unit, part of the heat in the cabinet can be directly guided toward the back of the electrical cabinet body 1. Compared with the prior art, the location of heat accumulation can be effectively transferred from the electrical cabinet body 1 to the outside of the electrical cabinet body 1. At the same time, through the continuous gathering and dispersion changes of the heat translation unit, heat can be quickly absorbed during accumulation, so that heat is transferred between solids and solids, and the diffusion to the side of the expanded section 521 is accelerated. After absorbing heat, it is in a dispersed state, which can cause a quantitative change in the area directly in contact with the air, thereby significantly accelerating the diffusion of the accumulated heat to the outside air, thereby greatly accelerating the heat dissipation efficiency, making it difficult for the electrical components in the electrical cabinet body 1 to operate in the high value area of ​​the safe operating temperature for a long time, thereby effectively ensuring its service life.

[0025] The second implementation method: Based on the first embodiment, this embodiment adds a piezoelectric module 71, a cooling plate 72 and related structures, and the rest of the parts are consistent with the first embodiment.

[0026] Figure 8As shown, a piezoelectric module 71 is also installed on the vertical inner wall of the embedded groove, a cooling plate 72 is embedded in the heat transfer back plate 4, and the cooling end of the cooling plate 72 faces the electrical cabinet body 1. An energy storage battery is also installed in the protective cover 3. The piezoelectric module 71 and the cooling plate 72 are electrically connected to the energy storage battery. The vertical span of the cooling plate 72 is greater than the vertical distribution range of the multiple variable strips 5. When the electric push rod 62 controls the variable strips 5 to expand and contract in the embedded groove, each expansion and contraction can resist and press the piezoelectric module 71 once, causing it to generate current and store it in the energy storage battery. When the temperature sensor detects that the temperature inside the electrical cabinet body 1 is too high and difficult to drop, the energy storage battery can power the cooling plate 72, and at the same time control the cooling plate 72 to be energized and cooled, thereby increasing the temperature inside the electrical cabinet body 1, greatly accelerating the outward diffusion of heat in the electrical cabinet body 1, and improving the heat dissipation effect.

[0027] It is worth noting that Figure 7 One or more air ducts 301 can also be led out at the air inlet of the exhaust fan and connected to the side wall of the protective cover 3. At this time, the lower end surface of the protective cover 3 is set to a porous structure, and the end surface facing the heat translation unit is a sealing structure, so that when the exhaust fan is working, the heat in the protective cover 3 can be sucked out and discharged to accelerate the heat dissipation.

[0028] The third implementation method: Based on the second embodiment, this embodiment adds a pre-substitute lining strip 8 and related structures, and the rest of the parts are consistent with the second embodiment.

[0029] In the embodiment, an electromagnetic sheet is fixedly embedded in the protective cover 3 , and generates an adsorption force on the plurality of pre-substitute lining strips 8 when powered on.

[0030] Fig. 9 It is shown that a long hole 801 for storing the strip is bored inside the heat conduction section 523, a compensation hole 802 is bored inside the main expansion section 522, and the long hole 801 for storing the strip is connected to the compensation hole 802. A pre-substitute lining strip 8 is clamped inside the long hole 801 for storing the strip, and the end of the pre-substitute lining strip 8 extends into the compensation hole 802. One end of the pre-substitute lining strip 8 located in the compensation hole 802 is concave, and a laser rangefinder 9 is installed on the inner wall of the concave part. The laser rangefinder 9 is coaxial with the compensation hole 802, and a magnetic sheet is pasted on the other end of the pre-substitute lining strip 8.

[0031] The pre-substitute lining strip 8 includes an elastic rod body 81 and a plurality of outward expansion strips 82 fixedly connected to the outer end of the elastic rod body 81, wherein the plurality of outward expansion strips 82 are distributed in a circular array, and a hole 803 is opened in the middle of the elastic rod body 81, and the two ends of the outward expansion strip 82 are respectively located at the mouths of the left and right edges of 803, and the outward expansion strip 82 is an arc-shaped structure arched outward, and the outward expansion strip 82 is in contact with the inner wall of the storage strip long hole 801, and one end of the elastic rod body 81 is in conflict with the mouth of the compensation hole 802.

[0032] When the variable strip 5 contacts the inner wall of the embedded groove, the variable strip 5 is in a concentrated straight state. At this time, the light beam emitted by the laser rangefinder 9 passes through the compensation hole 802 and irradiates the expanded section 521. When the variable strip 5 moves outward and presents a curved shape, the light beam will irradiate the inner wall of the compensation hole 802. In addition, if the elastic force of the main expansion section 522 is not damaged, the irradiation point is consistent each time, or it is slightly offset. The value obtained by the laser rangefinder 9 each time remains unchanged or is not much different. As the use time increases, multiple main expansion sections 522 may be damaged. When it is located outside the embedded groove, multiple expanded sections 521 are difficult to disperse as expected, and multiple expanded sections 521 may contact each other. , affecting the heat dissipation. At this time, the landing point of the laser beam emitted by the laser rangefinder 9 on the inner wall of the compensation hole 802 will change accordingly, resulting in a large deviation between the data and the expected value. The state of the main expansion section 522 can be monitored by the data change obtained by the laser rangefinder 9. When the data of the laser rangefinder 9 is significantly reduced, the electric push rod 62 can be controlled to extend so that the variable strip 5 is in a straight state, and then the protective cover 3 is controlled to be energized to generate an adsorption force on the pre-substitute lining strip 8, so that it enters the compensation hole 802, thereby forming an inner lining in the main expansion section 522, thereby repairing part of its elasticity, so that the heat-collecting laminate 52 can be dispersed as expected, which is convenient for heat dissipation.

[0033] The original shape of the pre-substitute lining strip 8 is also arc-shaped, and the curvature is slightly larger than the original curvature of the corresponding main expansion section 522 .

[0034] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A high heat dissipation electric control cabinet, characterized in that: The electrical cabinet body (1) comprises an electrical cabinet body (1), wherein a temperature sensor is installed in the electrical cabinet body (1), the lower parts of the left and right ends of the electrical cabinet body (1) are both provided with long heat dissipation holes (101), the front end of the electrical cabinet body (1) is provided with a cabinet door (102), the upper part of the right end of the electrical cabinet body (1) is fixedly connected with an outer cover (2), the outward end surface of the outer cover (2) is clamped with a filter (201), an exhaust fan is installed inside the outer cover (2), the air inlet end of the exhaust fan is connected to the inside of the electrical cabinet body (1), and the exhaust end of the exhaust fan faces the filter (201), a heat transfer unit is arranged on the back of the electrical cabinet body (1), and a protective cover (3) is also fixedly connected to the back of the electrical cabinet body (1) by bolts, and the protective cover (3) is arranged on the outside of the heat transfer unit; The heat transfer unit comprises a heat transfer back plate (4) fixedly attached to the back of the electrical cabinet body (1) and a plurality of variable strips (5) inserted into the heat transfer back plate (4); the heat transfer back plate (4) is provided with a plurality of embedded grooves respectively matched with the plurality of variable strips (5); the ends of the plurality of variable strips (5) penetrate the side ends of the heat transfer back plate (4) and extend to the outside of the side ends; a synchronization rod (61) is fixedly connected between the ends of two adjacent variable strips (5) located outside the heat transfer back plate (4); an electric push rod (62) is fixedly connected between the middle of the synchronization rod (61) and the inner wall of the protective cover (3); the extended end of the electric push rod (62) faces one side of the synchronization rod (61); the variable strip (5) comprises a heat absorption layer (51) located inside the heat transfer back plate (4) and a plurality of heat collecting laminates (52) fixedly connected to the end of the heat absorption layer (51) away from the heat transfer back plate (4).

2. The high heat dissipation electric control cabinet according to claim 1, characterized in that: The openings of two adjacent embedded grooves are oriented in different directions, and the variable strips (5) in the two adjacent embedded grooves are staggered, and when the heat absorption layer (51) contacts the vertical inner wall of the embedded groove, the length of the heat collecting laminate (52) in the embedded groove is not less than 1 / 3 of the overall length.

3. The high heat dissipation electric control cabinet according to claim 1, characterized in that: The upper and lower inner walls of the embedded groove are both rollingly embedded with cylindrical bars (401), and the two cylindrical bars (401) are respectively in rolling contact with adjacent heat-collecting laminated sheets (52).

4. The high heat dissipation electric control cabinet according to claim 1, characterized in that: The heat-collecting laminate (52) comprises an expanded section (521), a heat-conducting section (523), and a main expansion section (522) fixedly connected therebetween; the heat-conducting section (523) is fixedly connected to the heat-absorbing layer (51); the expanded section (521) and the heat-conducting section (523) are both made of a hard heat-conducting material; the main expansion section (522) is made of a curved elastic material; and the heat-conducting section (523), the main expansion section (522), and the expanded section (521) have increasing thermal conductivity in sequence.

5. The high heat dissipation electric control cabinet according to claim 4, characterized in that: Along the direction from the center to the upper and lower sides, the bending amplitudes of the plurality of main expansion sections (522) in a natural state gradually increase.

6. The high heat dissipation electric control cabinet according to claim 5, characterized in that: A piezoelectric module (71) is also installed on the vertical inner wall of the embedded groove, a cooling plate (72) is embedded inside the heat transfer back plate (4), the cooling end of the cooling plate (72) faces the electrical cabinet body (1), an energy storage battery is also installed in the protective cover (3), the piezoelectric module (71) and the cooling plate (72) are both electrically connected to the energy storage battery, and the vertical span of the cooling plate (72) is greater than the vertical distribution range of the plurality of variable strips (5).

7. The high heat dissipation electric control cabinet according to claim 4, characterized in that: The heat conduction section (523) has a strip storage long hole (801) bored inside, the main expansion section (522) has a compensation hole (802) bored inside, and the strip storage long hole (801) and the compensation hole (802) are communicated with each other, a pre-substitute lining strip (8) is clamped inside the strip storage long hole (801), and the end of the pre-substitute lining strip (8) extends into the compensation hole (802), one end of the pre-substitute lining strip (8) located in the compensation hole (802) is concave, and a laser rangefinder (9) is installed on the inner wall of the concave part, the laser rangefinder (9) is coaxial with the compensation hole (802), and a magnetic sheet is attached to the other end of the pre-substitute lining strip (8).

8. The high heat dissipation electric control cabinet according to claim 7, characterized in that: The pre-substitute lining strip (8) comprises an elastic rod body (81) and a plurality of outward expansion strips (82) fixedly connected to the outer end of the elastic rod body (81), the plurality of outward expansion strips (82) being distributed in a ring array, a hole (803) being cut in the middle of the elastic rod body (81), the two ends of the outward expansion strip (82) being respectively located at the mouth of the left and right edges of the (803), and the outward expansion strip (82) being an arc-shaped structure arched outward, the outward expansion strip (82) being in contact with the inner wall of the strip storage slot (801), and one end of the elastic rod body (81) being in contact with the mouth of the compensation hole (802).

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