Electrical equipment protection box body convenient for heat dissipation

Abstract

The invention discloses an electrical equipment protection box body convenient for heat dissipation, and belongs to the technical field of electrical equipment protection box bodies, the electrical equipment protection box body comprises a cabinet body, a supporting plate is fixedly mounted in the middle of the cabinet body, electrical equipment is placed on the supporting plate, an adjusting mechanism is arranged in the cabinet body, and limiting mechanisms are arranged on the two sides of the electrical equipment. Air supply mechanisms are arranged on the two sides of the cabinet body, a cooling fan is fixedly installed in the middle of the lower surface of the supporting plate, and a temperature detector is fixedly installed on one side of the inner wall of the cabinet body. Under the cooperation of the adjusting mechanism and the air supply mechanism, the ventilation quantity can be adaptively adjusted according to the specification of the electrical equipment, and the required ventilation quantity is met. In this way, the problem that too much moisture enters the cabinet body due to the fact that the ventilation opening is too large when small electrical equipment is cooled is avoided; and the situation that the heat dissipation efficiency of the cabinet body is poor due to the fact that the ventilation opening is too small when heat dissipation is carried out on large-scale electrical equipment is also avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment protection boxes, and in particular relates to an electrical equipment protection box that is convenient for heat dissipation. Background Art

[0002] Electrical equipment is a general term for equipment such as generators, transformers, power lines, and circuit breakers in the power system. In order to increase the service life of electrical equipment, it is usually selected to set a protective box for the electrical equipment to prevent the electrical equipment from being damaged by the external environment. For example, the publication number is: CN112448300A, a distribution cabinet protection device with heat dissipation function, including a protective box and a box door, a dynamic heat dissipation component is arranged on the side wall of the protective box, and the dynamic heat dissipation component includes a heat dissipation fan, a heat dissipation motor, a swing component, and a lifting component; the swing component includes an L-shaped fixed seat and a support rod, a positioning pin and a swing motor are fixedly installed on the outer side of the L-shaped fixed seat, a disk is fixedly installed on the output end of the swing motor, and an eccentric shaft pin is fixedly installed on the disk; the lifting component includes a lifting motor and a limit block; the invention sets a swing motor and a lifting motor, the swing motor rotates, drives the heat dissipation fan to swing inside the protective box, and realizes swing-type heat dissipation of the distribution cabinet in multiple positions; at the same time, the lifting motor rotates to drive the heat dissipation fan to move up and down, further adjusts the heat dissipation position of the heat dissipation fan, and better increases the heat dissipation range of the heat dissipation fan to the distribution cabinet.

[0003] The problem with the prior art is that although the above-mentioned protective device can realize swing-type heat dissipation of the distribution cabinet at multiple positions, it cannot adaptively adjust the heat dissipation efficiency according to the heat dissipation needs of the distribution cabinet, which greatly reduces the scope of application and functionality of the protective device; secondly, the protective device does not have a wind guiding function, which slows down the hot air discharge speed and reduces the heat dissipation efficiency. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides an electrical equipment protection box that is easy to dissipate heat. It has the advantage of being able to adaptively adjust the ventilation volume according to the needs of the electrical equipment to adapt to different electrical equipment. It solves the problem that although the existing protection device can realize swing-type heat dissipation of the distribution cabinet at multiple positions, it cannot adaptively adjust the heat dissipation efficiency according to the heat dissipation needs of the distribution cabinet, which greatly reduces the scope of application and functionality of the protection device; secondly, the protection device does not have a wind guiding function, which slows down the discharge speed of hot air and reduces the heat dissipation efficiency.

[0005] The present invention is implemented as follows: a protective box for electrical equipment that is convenient for heat dissipation comprises a cabinet, a cabinet door is rotatably installed on the front side of the cabinet, side air guide plates are fixedly connected to both sides of the inner wall of the cabinet, a central diverter plate is arranged on the top wall of the cabinet, a support plate is fixedly installed in the middle of the cabinet, electrical equipment is placed on the support plate, an adjustment mechanism for fixing the electrical equipment is arranged in the cabinet, a limiting mechanism is arranged on both sides of the electrical equipment, air supply mechanisms are arranged on both sides of the cabinet below the support plate, a heat dissipation fan is fixedly installed in the middle of the lower surface of the support plate, and a temperature detector is fixedly installed on one side of the inner wall of the cabinet; Air inlets are provided on both sides of the lower end of the cabinet, and air outlets are provided on both sides of the upper end of the cabinet. Each of the air inlets corresponds to each air supply mechanism.

[0006] As a preferred embodiment of the present invention, the limiting mechanism is located above the adjusting mechanism, the limiting mechanism is fixedly mounted on the side air guide plate, both sides of the bottom wall of the cabinet are clamped with collection boxes, and the collection box is located below the air supply mechanism.

[0007] As a preferred embodiment of the present invention, the adjustment mechanism includes a bidirectional screw and a sliding rod, both ends of the bidirectional screw are rotatably connected to the cabinet, the sliding rod is located below the bidirectional screw and fixedly connected to the cabinet, a casing is fixedly installed on the outer wall of the cabinet, a motor is fixedly installed in the casing, and the motor output shaft is fixedly connected to one end of the bidirectional screw.

[0008] As a preferred embodiment of the present invention, both ends of the bidirectional screw rod are threadedly connected with adjustment plates, and the two adjustment plates are arranged on both sides of the electrical equipment. A connecting plate is fixedly connected to the outer side of the upper end of each adjustment plate, and an upper rack is fixedly connected to the lower surface of each adjustment plate, and the upper rack extends to the bottom of the support plate.

[0009] As a preferred embodiment of the present invention, two mounting blocks are fixedly connected to the rear side of the cabinet below the support plate, a gear is rotatably mounted on each mounting block, the cooling fan is located between the two gears, the gear is meshingly connected to the upper rack, and a lower rack is meshingly connected below each gear.

[0010] As a preferred embodiment of the present invention, each of the air supply mechanisms includes a protective frame, which is fixedly installed at the air inlet, and bristles are provided on both sides of the inner wall and the upper inner wall of each of the protective frames, and two limit grooves are provided on the upper and lower inner walls of each of the protective frames.

[0011] As a preferred embodiment of the present invention, a filter frame is slidably arranged in each of the protective frames, the inner end of each of the filter frames is fixedly connected to each of the lower racks, and the upper and lower sides of each of the filter frames are fixedly connected to two limit bars, which slide on the inner wall of the limit groove.

[0012] As a preferred embodiment of the present invention, a scraper strip for cleaning dust is fixedly connected to the outer end of each filter frame.

[0013] As a preferred embodiment of the present invention, the limiting mechanism includes four telescopic rods, and the four telescopic rods are divided into two groups. The two groups of telescopic rods are located on both sides of the electrical equipment, and each group of telescopic rods is respectively fixedly connected to the side air guide plate on each side, and the output end of each group of telescopic rods is fixedly connected to the limiting plate.

[0014] As a preferred embodiment of the present invention, each of the telescopic rods is sleeved with a spring, both ends of the spring are respectively fixedly connected to the side wind guide plate and the limit plate, and the connecting plate is located on the outside of the limit plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can adaptively adjust the ventilation volume according to the specifications of the electrical equipment under the cooperation of the adjustment mechanism and the air supply mechanism to meet the required ventilation volume. In this way, the problem of excessive moisture entering the cabinet due to the large ventilation opening when cooling small electrical equipment is avoided; and the problem of poor cabinet cooling efficiency due to the small ventilation opening when cooling large electrical equipment is avoided.

[0016] 2. The present invention can monitor the temperature in the cabinet in real time by setting a temperature detector. When the temperature exceeds a preset value, the filter frame can achieve self-cleaning with the help of bristles under the cooperation of the adjustment mechanism and the air supply mechanism, thereby improving its permeability and achieving the effect of dust collection, thereby improving the heat dissipation efficiency.

[0017] 3. The present invention has a guiding effect on the wind by setting two side wind guide plates and a central diverter plate, so that the wind is gathered above the electrical equipment through the two sides of the electrical equipment, and finally, under the action of the central diverter plate, the hot air is discharged from the two air outlets. Such a cycle can not only dissipate heat for the electrical equipment in all directions, but also improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of the present invention; Figure 3 For the present invention Figure 2 3D schematic diagram of the AA section structure; Figure 4 It is a three-dimensional schematic diagram of a first partial structure of the present invention; Figure 5 An exploded view of the regulating mechanism of the present invention; Figure 6Explosion diagram of the air supply mechanism of the present invention; Figure 7 Schematic three-dimensional diagram of the second partial structure of the present invention.

[0019] In the figure: 1, cabinet body; 101, air inlet; 102, air outlet; 2, cabinet door; 3, side air guide plate; 4, central flow dividing plate; 5, support plate; 6, heat dissipation fan; 7, temperature detector; 8, collection box; 9, adjustment mechanism; 901, bidirectional lead screw; 902, slide bar; 903, motor; 904, machine shell; 905, adjustment plate; 906, connecting plate; 907, upper rack; 908, mounting block; 909, gear; 910, lower rack; 10, air supply mechanism; 1001, protective frame; 10011, limit groove; 10012, brush hair; 1002, limit strip; 1003, filter frame; 1004, scraping strip; 11, electrical equipment; 12, limit mechanism; 1201, telescopic rod; 1202, limit plate; 1203, spring. Specific embodiments

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are cited and described in detail with reference to the accompanying drawings as follows.

[0021] The structure of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] As Figures 1 to 4 , Figure 7 shown, a protective box body for an electrical equipment that is convenient for heat dissipation provided by an embodiment of the present invention includes a cabinet body 1, a cabinet door 2 is rotatably installed on the front side of the cabinet body 1, side air guide plates 3 are fixedly connected to both sides of the inner wall of the cabinet body 1, a central flow dividing plate 4 is arranged on the top wall of the cabinet body 1, a support plate 5 is fixedly installed in the middle of the cabinet body 1, an electrical equipment 11 is placed on the support plate 5, an adjustment mechanism 9 for fixing the electrical equipment 11 is arranged in the cabinet body 1, limit mechanisms 12 are arranged on both sides of the electrical equipment 11, air supply mechanisms 10 are arranged on both sides of the cabinet body 1 below the support plate 5, a heat dissipation fan 6 is fixedly installed in the middle of the lower surface of the support plate 5, and a temperature detector 7 is fixedly installed on one side of the inner wall of the cabinet body 1; Air inlets 101 are opened on both sides of the lower end of the cabinet body 1, air outlets 102 are opened on both sides of the upper end of the cabinet body 1, and each air inlet 101 corresponds to each air supply mechanism 10 respectively.

[0023] It should be noted that the temperature detector 7 is provided to detect the temperature inside the cabinet body 1 to prevent excessive temperature from affecting the normal operation of the electrical equipment 11. By providing two air inlets 101 and two air outlets 102, the heat dissipation efficiency is improved. Through the arrangement of the two side air guide plates 3 and the central flow dividing plate 4, when the heat dissipation fan 6 rotates in reverse, the outside air will be drawn into the cabinet body 1 through the air inlets 101, blown towards the upper part of the cabinet body 1 through the support plate 5, and the heat dissipation of the electrical equipment 11 is realized. During this process, after the air enters the cabinet body 1, under the action of the two side air guide plates 3, the air flow direction is changed so that the air blows towards the central flow dividing plate 4. When the air accumulates above the electrical equipment 11, then under the action of the central flow dividing plate 4, the air flow direction is changed again, and finally the hot air accumulated above the electrical equipment 11 is blown towards the two air outlets 102 on both sides through the two arc surfaces of the central flow dividing plate 4 to improve the heat dissipation efficiency. The arrangement of the two side air guide plates 3 and the central flow dividing plate 4 guides the air, enabling the air to converge above the electrical equipment 11 from both sides of the electrical equipment 11. Finally, under the action of the central flow dividing plate 4, the hot air is discharged from the two air outlets 102. In this way, not only can the electrical equipment 11 be comprehensively cooled, but also the heat dissipation efficiency can be improved.

[0024] As Figure 3 shown, the limiting mechanism 12 is located above the adjusting mechanism 9. The limiting mechanism 12 is fixedly installed on the side air guide plate 3. Collection boxes 8 are snap-connected to both sides of the inner bottom wall of the cabinet body 1, and the collection boxes 8 are located below the air supply mechanism 10.

[0025] It should be noted that the setting of the limiting mechanism 12 plays a certain limiting role on the electrical equipment 11, preventing the electrical equipment 11 from shaking greatly without the action of the adjusting mechanism 9 and affecting its normal operation. The setting of the collection box 8 is used to collect the dust after cleaning.

[0026] As Figure 1 、 Figure 3 、 Figure 5As shown, the adjustment mechanism 9 includes a bidirectional screw rod 901 and a slide rod 902. Both ends of the bidirectional screw rod 901 are rotatably connected to the cabinet 1. The slide rod 902 is located below the bidirectional screw rod 901 and is fixedly connected to the cabinet 1. A housing 904 is fixedly installed on the outer wall of the cabinet 1. A motor 903 is fixedly installed in the housing 904. The output shaft of the motor 903 is fixedly connected to one end of the bidirectional screw rod 901. Both ends of the bidirectional screw rod 901 are threadedly connected with an adjustment plate 905. Two adjustment plates 905 are arranged on both sides of the electrical equipment 11. Each The outer side of the upper end of each adjustment plate 905 is fixedly connected to a connecting plate 906, and the lower surface of each adjustment plate 905 is fixedly connected to an upper rack 907, which extends to the bottom of the support plate 5. Two mounting blocks 908 are fixedly connected to the rear side of the cabinet 1 below the support plate 5, and each mounting block 908 is rotatably mounted with a gear 909. The cooling fan 6 is located between the two gears 909, and the gear 909 is meshed with the upper rack 907. A lower rack 910 is meshed under each gear 909.

[0027] In the present application, the bidirectional screw rod 901 is driven to rotate by the motor 903, thereby driving the two adjustment plates 905 to slide along the outer surface of the slide rod 902. When the two adjustment plates 905 move toward each other at the same time, the connecting plate 906 and the upper rack 907 are synchronously driven to move, thereby achieving the purpose of clamping and fixing the electrical equipment 11 while controlling the movement of the upper rack 907. In the process of the two upper racks 907 continuously moving toward each other, the gear 909 is synchronously driven to rotate, and finally the two lower racks 910 are driven to move away from each other at the same time; conversely, the two lower racks 910 are driven to move toward each other at the same time.

[0028] like Figure 3 , Figure 5 , Figure 6 As shown, each air supply mechanism 10 includes a protective frame 1001, which is fixedly installed at the air inlet 101. Brushes 10012 are provided on both sides of the inner wall and the upper inner wall of each protective frame 1001. Two limiting grooves 10011 are provided on the upper and lower inner walls of each protective frame 1001. A filter frame 1003 is slidably arranged in each protective frame 1001. The inner end of each filter frame 1003 is fixedly connected to each lower rack 910 respectively. Two limiting bars 1002 are fixedly connected to the upper and lower sides of each filter frame 1003, and the limiting bars 1002 slide on the inner walls of the limiting grooves 10011.

[0029] It should be noted that, under normal circumstances, a large electrical equipment 11 generates more heat than a small electrical equipment 11, so a larger ventilation volume is required; when the adjustment mechanism 9 clamps the smaller electrical equipment 11, the two lower racks 910 will drive the two filter frames 1003 to move away from each other at the same time. At this time, the part of the filter frame 1003 exposed from the protective frame 1001 is small, which means that the ventilation volume is relatively small. At this time, the electrical equipment 11 can meet its heat dissipation requirements under the premise of adjusting the ventilation volume; on the contrary, the two lower racks 910 will drive the two filter frames 1003 to move towards each other at the same time, so as to expand the ventilation volume to meet the ventilation needs of the large electrical equipment 11.

[0030] like Figure 6 As shown, a scraper bar 1004 for cleaning dust is fixedly connected to the outer end of each filter frame 1003 .

[0031] It should be noted that when the filter frame 1003 slides back and forth in the protective frame 1001, the bristles 10012 on the inner wall of the protective frame 1001 will clean the dust on the filter frame 1003. Part of the cleaned dust is scraped into the collection box 8 under the action of the scraper bar 1004, and part of the dust is pushed out of the protective frame 1001 under the action of the scraper bar 1004.

[0032] like Figure 3 , Figure 7 As shown, the limiting mechanism 12 includes four telescopic rods 1201, and the four telescopic rods 1201 are divided into two groups. The two groups of telescopic rods 1201 are located on both sides of the electrical equipment 11, and each group of telescopic rods 1201 is respectively fixedly connected to the side air guide plate 3 on each side, and the output end of each group of telescopic rods 1201 is fixedly connected to the limiting plate 1202. A spring 1203 is sleeved on the outside of each telescopic rod 1201, and both ends of the spring 1203 are respectively fixedly connected to the side air guide plate 3 and the limiting plate 1202, and the connecting plate 906 is located on the outside of the limiting plate 1202.

[0033] In the present application, after the air supply mechanism 10 has been used for a long time, its filter frame 1003 will be blocked, which seriously affects the heat dissipation effect of the cabinet 1. When the temperature detector 7 detects that the temperature in the cabinet 1 exceeds the preset value, the motor 903 drives the two adjustment plates 905 to reciprocate, and the cooling fan 6 rotates forward to achieve the effect of blowing air downward. The motor 903 is started to drive the filter frame 1003 to reciprocate in the protective frame 1001. In this process, with the help of the bristles 10012, the filter frame 1003 can be cleaned, and the cleaned dust is discharged from the air inlet 101 under the blowing of the wind; during the reciprocating movement of the adjustment plate 905, when the limit plate 1202 is no longer squeezed, the two limit plates 1202 are driven to reset under the action of the spring 1203. At this time, the two limit plates 1202 can limit the electrical equipment 11 within a certain range to prevent the electrical equipment 11 from shaking significantly.

[0034] It should be noted that if Figure 3 As shown, this is the state of the smallest-sized electrical device 11 clamped by this solution, and at this time, the telescopic rod 1201 and the spring 1203 are both in a state of being stretched a certain distance.

[0035] Working principle of the present invention: When in use, the cooling fan 6 is reversed, and the external wind is drawn into the cabinet 1 under the drive of the cooling fan 6. Then, the electrical device 11 is placed on the support plate 5, and the motor 903 is started to drive the two adjustment plates 905 to move toward the direction close to the electrical device 11. Under the action of the two connecting plates 906, the two limit plates 1202 are pushed to approach the electrical device 11 at the same time. When the two adjustment plates 905 clamp the electrical device 11, the two limit plates 1202 just contact with the electrical device 11, and the telescopic rod 1201 and the spring 1203 are stretched; During the movement of the adjustment plate 905, the upper rack 907 is synchronously driven to move. Under the action of the gear 909, the two lower racks 910 are driven to move in the opposite direction of the upper rack 907, thereby driving the filter frame 1003 to move. In this way, the size of the air inlet 101 can be adaptively adjusted according to the size of the electrical device 11 to meet the heat dissipation requirements of the electrical device 11, avoiding the problem of excessive moisture entering the cabinet 1 due to the excessively large vent when cooling small electrical devices 11; and avoiding the problem of poor heat dissipation efficiency of the cabinet 1 due to the excessively small vent when cooling large electrical devices 11. When the mesh of the filter frame 1003 is blocked due to long-term use, the heat dissipation efficiency in the cabinet 1 will be reduced, and the temperature in the cabinet 1 will increase accordingly. When the temperature detector 7 detects that the temperature in the cabinet 1 exceeds the preset value, the motor 903 drives the two adjustment plates 905 to reciprocate, and the cooling fan 6 rotates forward to achieve the effect of blowing air downward. Driven by the motor 903, the filter frame 1003 will be driven to reciprocate in the protective frame 1001. In this process, the filter frame 1003 can be cleaned with the help of the bristles 10012. The cleaned dust falls into the protective frame 1001, part of which is scraped into the collection box 8 under the action of the scraper bar 1004, and part of which is scraped out by the scraper bar 1004. Under the use, the dust is pushed out from the protective frame 1001, and some of the dust is discharged from the air inlet 101 under the influence of the wind; during the reciprocating motion of the adjustment plate 905, when the limit plate 1202 is no longer squeezed, the two limit plates 1202 are driven to reset under the action of the spring 1203. At this time, the two limit plates 1202 can limit the electrical equipment 11 within a certain range to prevent the electrical equipment 11 from shaking significantly. When the temperature in the cabinet 1 drops, the electrical equipment 11 is clamped and fixed again, and the cooling fan 6 is reversed to draw the outside air into the cabinet 1, and under the guidance of the side air guide plate 3 and the central diverter plate 4, the hot air is finally discharged from the air outlet 102.

[0036] In summary, this kind of electrical equipment protection box that is convenient for heat dissipation can adaptively adjust the ventilation volume according to the specifications of the electrical equipment 11 through the cooperation of the adjustment mechanism 9 and the air supply mechanism 10 to meet the required ventilation volume. In this way, the problem of too much moisture entering the cabinet 1 due to the excessive ventilation opening when dissipating heat for small electrical equipment 11 is avoided; and the situation of poor heat dissipation efficiency of the cabinet 1 due to the excessive ventilation opening when dissipating heat for large electrical equipment 11 is avoided; through the setting of the two side air guide plates 3 and the central diverter plate 4, the wind is guided, so that the wind is gathered from both sides of the electrical equipment 11 to the top of the electrical equipment 11, and finally, under the action of the central diverter plate 4, the hot air is discharged from the two air outlets 102. Such a cycle can not only dissipate heat for the electrical equipment 11 in all directions, but also improve the heat dissipation efficiency.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective box for electrical equipment that facilitates heat dissipation, comprising a cabinet (1), characterized in that: A cabinet door (2) is rotatably mounted on the front side of the cabinet (1); side air guide plates (3) are fixedly connected to both sides of the inner wall of the cabinet (1); a central diverter plate (4) is arranged on the top wall of the cabinet (1); a support plate (5) is fixedly mounted in the middle of the cabinet (1); an electrical device (11) is placed on the support plate (5); an adjustment mechanism (9) for fixing the electrical device (11) is arranged in the cabinet (1); limit mechanisms (12) are arranged on both sides of the electrical device (11); air supply mechanisms (10) are arranged on both sides of the cabinet (1) below the support plate (5); a cooling fan (6) is fixedly mounted in the middle of the lower surface of the support plate (5); and a temperature detector (7) is fixedly mounted on one side of the inner wall of the cabinet (1); Air inlets (101) are provided on both sides of the lower end of the cabinet (1), and air outlets (102) are provided on both sides of the upper end of the cabinet (1), and each of the air inlets (101) corresponds to each air supply mechanism (10).

2. The heat dissipation protection box for electrical equipment according to claim 1, characterized in that: The limiting mechanism (12) is located above the regulating mechanism (9), and the limiting mechanism (12) is fixedly mounted on the side air guide plate (3). Collection boxes (8) are clamped on both sides of the inner bottom wall of the cabinet (1), and the collection box (8) is located below the air supply mechanism (10).

3. The heat dissipating protection box for electrical equipment according to claim 1, characterized in that: The adjustment mechanism (9) comprises a bidirectional screw rod (901) and a sliding rod (902), both ends of the bidirectional screw rod (901) are rotatably connected to the cabinet (1), the sliding rod (902) is located below the bidirectional screw rod (901) and is fixedly connected to the cabinet (1), a casing (904) is fixedly mounted on the outer wall of the cabinet (1), a motor (903) is fixedly mounted inside the casing (904), and an output shaft of the motor (903) is fixedly connected to one end of the bidirectional screw rod (901).

4. The heat dissipating protection box for electrical equipment according to claim 3, characterized in that: Both ends of the bidirectional lead screw (901) are threadedly connected to adjustment plates (905), and the two adjustment plates (905) are arranged on both sides of the electrical device (11). The outer side of the upper end of each adjustment plate (905) is fixedly connected to a connecting plate (906), and the lower surface of each adjustment plate (905) is fixedly connected to an upper rack (907), and the upper rack (907) extends to the bottom of the support plate (5).

5. The heat dissipating protection box for electrical equipment according to claim 4, characterized in that: Two mounting blocks (908) are fixedly connected to the rear side of the cabinet (1) below the support plate (5), and a gear (909) is rotatably mounted on each of the mounting blocks (908). The cooling fan (6) is located between the two gears (909), and the gear (909) is meshingly connected to an upper rack (907). A lower rack (910) is meshingly connected below each of the gears (909).

6. The heat dissipating protection box for electrical equipment according to claim 5, characterized in that: Each of the air supply mechanisms (10) comprises a protective frame (1001), the protective frame (1001) being fixedly mounted at the air inlet (101), both sides of the inner wall and the upper inner wall of each of the protective frames (1001) being provided with brushes (10012), and the upper and lower inner walls of each of the protective frames (1001) being provided with two limit grooves (10011).

7. The heat dissipating protection box for electrical equipment according to claim 6, characterized in that: A filter frame (1003) is slidably arranged in each of the protective frames (1001); the inner end of each of the filter frames (1003) is fixedly connected to each of the lower racks (910), and the upper and lower sides of each of the filter frames (1003) are fixedly connected to two limit bars (1002), and the limit bars (1002) slide on the inner wall of the limit groove (10011).

8. The heat dissipating protection box for electrical equipment according to claim 7, characterized in that: The outer end of each filter frame (1003) is fixedly connected to a scraper bar (1004) for cleaning dust.

9. The heat dissipating protection box for electrical equipment according to claim 4, characterized in that: The limiting mechanism (12) comprises four telescopic rods (1201), the four telescopic rods (1201) are divided into two groups, the two groups of telescopic rods (1201) are located on both sides of the electrical equipment (11), each group of telescopic rods (1201) is fixedly connected to the side air guide plate (3) on each side, and the output end of each group of telescopic rods (1201) is fixedly connected to the limiting plate (1202).

10. The heat dissipating protection box for electrical equipment according to claim 9, characterized in that: A spring (1203) is sleeved on the outside of each telescopic rod (1201), and two ends of the spring (1203) are respectively fixedly connected to the side air guide plate (3) and the limit plate (1202), and the connecting plate (906) is located on the outside of the limit plate (1202).

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