A self-heating distribution box

Abstract

The present invention relates to the technical field of distribution boxes, and specifically to a self-heating distribution box, including a supporting cylinder, an adjusting cylinder, an inner cylinder, a dehumidification component, a circuit mounting plate and a driving device; the present invention arranges the dehumidification component and the inner cylinder eccentrically, so that during the operation of the distribution box, the first motor drives the dehumidification component to rotate continuously, and the dehumidification component changes to a wet state after passing through an inlet; after the dehumidification component passes through the inlet, it is pre-regenerated by hot air, and when the dehumidification component rotates to an outlet, it is regenerated and changes to a dry state. The dehumidification component continuously changes between wet and dry states, which reduces the frequency of manual maintenance of the dehumidification component and reduces the workload while ensuring the dehumidification effect. The eccentric arrangement enables the dry part and the wet part of the dehumidification component to be located inside and outside the inner cylinder respectively. Even when the moisture in the wet dehumidification component evaporates, the evaporated water vapor is located outside the inner cylinder and will not cause damage to the components on the circuit mounting plate.

Description

Technical Field

[0001] The invention relates to the field of distribution boxes, and in particular to a self-heating distribution box. Background Art

[0002] Distribution boxes are widely used in various electric vehicle charging places, such as public charging stations, community parking lots, highway service areas, etc. The car charging distribution box can effectively distribute the power of the power grid to various charging devices, ensuring that each electric vehicle can get enough power for charging. With the popularization of electric vehicles and the continuous improvement of charging infrastructure, the demand for charging pile distribution boxes is also increasing. When installing the distribution box, it can be fixed on the wall or the ground according to the actual situation; and the charging pile can be installed according to the model of the electric vehicle to charge it. However, the distribution box will generate a lot of heat during use. When the heat cannot be discharged in time, it will accumulate inside the distribution box, causing high temperature and overheating in the distribution box, damaging components, and eventually leading to unusable conditions. Due to factors such as volume, cost, and reliability, most distribution boxes currently use forced air cooling to dissipate heat.

[0003] However, the air inlet and outlet of the box will be disturbed by dust, moisture, etc., especially in some areas with humid air all year round, where moisture exists for a long time, the safety distance of high voltage and strong electricity decreases, and it is easy to cause hidden dangers. For this reason, in the relevant technical field, a Chinese patent document with publication number CN116061725A discloses a technical solution for an intelligent charging pile for electric vehicles. The invention sets a moisture absorption plate horizontally between the air inlet and the shell. Although it can effectively prevent external moisture from entering the shell and causing damage to components, improve overall safety, and extend service life, it still needs to frequently maintain the dehumidification sheet to ensure the heat dissipation and dehumidification effect of the distribution box, which requires a large manual workload and high labor costs. Summary of the invention

[0004] The present invention provides a self-heating distribution box to solve the problems of frequent maintenance of dehumidification sheets to ensure the heat dissipation and dehumidification effect of the distribution box, large manual workload and high labor cost.

[0005] A self-heating distribution box of the present invention adopts the following technical solution: A self-heating distribution box comprises:

[0006] The support cylinder is vertically arranged, and two empty slots are oppositely provided on the side wall;

[0007] The regulating cylinder is coaxially arranged inside the supporting cylinder, and an air inlet and an air outlet are arranged opposite to each other on the regulating cylinder, and a filter is installed on the air inlet; the air inlet and the air outlet extend from two empty slots on the side wall of the supporting cylinder respectively;

[0008] The inner cylinder is vertically arranged in the regulating cylinder; an inlet and an outlet are oppositely opened on the inner cylinder; the inlet and the outlet are offset from the empty slot on the supporting cylinder; an exhaust fan is arranged at the inlet, and an air supply fan is arranged at the outlet; a first sealing plate and a second sealing plate are arranged between the inner cylinder and the regulating cylinder, and the first sealing plate and the second sealing plate separate the air inlet duct and the air outlet duct; the inlet and the air inlet are located in the air inlet duct, and the outlet and the air outlet are located in the air outlet duct;

[0009] The dehumidification component is cylindrical in shape and rotatably arranged inside the regulating cylinder; the dehumidification component is eccentrically arranged with the inner cylinder and passes through the inner cylinder at the inlet and outlet, so that part of the dehumidification component is in the inner cylinder and the rest is in the air outlet duct outside the inner cylinder;

[0010] The circuit installation plate is arranged in the space enclosed by the inner circumferential wall of the dehumidification component and the inner circumferential wall of the inner cylinder, and the circuit installation plate is used to install the components inside the distribution box;

[0011] The driving device comprises a first motor, and the first motor is used for driving the dehumidification component to rotate, so that the dehumidification component passes through the inlet, the outside of the inner cylinder, the outlet and the inside of the inner cylinder in sequence.

[0012] Furthermore, the adjusting cylinder can be rotatably arranged inside the supporting cylinder, and the air inlet and the air outlet can rotate in the empty slot where they are located; the driving device also includes a second motor and a humidity sensing structure, the second motor is used to drive the adjusting cylinder to rotate; the humidity sensing structure is used to adjust the rotation angle of the adjusting cylinder according to the air humidity.

[0013] Furthermore, the first motor is fixedly mounted on the circuit mounting plate and is transmission-connected to the dehumidification assembly via a first gear.

[0014] Furthermore, the second motor is installed between the adjustment tube and the inner tube, and is fixedly installed on the inner tube; the second motor is synchronously connected to the second gear, and a gear ring is fixedly connected to the inner wall of the upper end of the adjustment tube, and the second gear is meshed with the gear ring.

[0015] Furthermore, the dehumidification component includes a dehumidification bracket and a plurality of dehumidification sheets; the dehumidification bracket is cylindrical, and a plurality of mounting grooves are opened on the side wall along the circumferential direction, and a dehumidification sheet is installed in each mounting groove.

[0016] Furthermore, a support plate is provided between the inner cylinder and the circuit installation plate, and two ends of the support plate are fixedly connected to the inner cylinder and the circuit installation plate respectively.

[0017] Furthermore, a filter is installed on the air outlet.

[0018] Furthermore, a top cover is fixedly connected to the upper end of the support tube; and a support seat is fixedly connected to the lower end of the support tube.

[0019] Furthermore, a charging gun mounting bracket is provided on the support tube, and a wire outlet is provided on the side wall of the support seat; two charging gun mounting brackets are provided, and two corresponding wire outlets are provided.

[0020] Furthermore, a rainproof plate is provided above the charging gun mounting bracket.

[0021] The beneficial effects of the present invention are as follows: a self-heating distribution box of the present invention sets the dehumidification component and the inner cylinder eccentrically. During the operation of the distribution box, the first motor drives the dehumidification component to rotate continuously, and the dehumidification component becomes a wet state after passing through the inlet; after the dehumidification component passes through the inlet, it is pre-regenerated by hot air, and the dehumidification component is regenerated and becomes a dry state when it rotates to the outlet. The dehumidification component continuously changes between wet and dry states, which reduces the frequency of manual maintenance of the dehumidification component while ensuring the dehumidification effect, reduces the workload, and reduces labor costs. The eccentric setting enables the dry part and the wet part of the dehumidification component to be inside and outside the inner cylinder respectively. Even when the moisture in the wet dehumidification component evaporates, the evaporated water vapor is located outside the inner cylinder and will not cause damage to the components on the circuit mounting board.

[0022] Furthermore, a self-heating distribution box of the present invention sets the regulating cylinder to be rotatable. In the initial state, the air outlet is close to the exhaust fan. As the working time increases, the humidity sensing structure drives the second motor to rotate, thereby driving the air outlet away from the exhaust fan. The hot air in the air outlet duct can heat the dehumidification component outside the inner cylinder, and mainly heats the temperature of the more humid outer dehumidification component to assist the regeneration of the dehumidification component; the cold air in the air inlet duct can cool the dehumidification component inside the inner cylinder that has just been regenerated, to prevent water vapor from volatilizing into the inner cylinder and causing damage to the components. When the charging work is completed, the components no longer generate heat. At this time, the distance between the air outlet and the exhaust fan is maximized, and the hot air in the air outlet duct can continue to heat the dehumidification component to assist the regeneration of the dehumidification component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a self-heating distribution box of the present invention;

[0025] Figure 2 It is a front view of an embodiment of a self-heating distribution box of the present invention;

[0026] Figure 3 for Figure 2 Middle AA section cutaway view;

[0027] Figure 4 for Figure 2 Middle BB section cutaway view;

[0028] Figure 5 A side view of an embodiment of a self-heating distribution box of the present invention;

[0029] Figure 6 for Figure 5 Middle CC section cutaway view;

[0030] Figure 7 It is a cross-sectional view of an embodiment of a self-heating distribution box of the present invention.

[0031] In the figure: 100, support cylinder; 110, empty slot; 120, charging gun mounting bracket; 130, top cover; 140, support seat; 141, wire outlet; 150, rain shield; 200, adjustment cylinder; 210, air inlet; 220, air outlet; 230, filter; 300, dehumidification component; 310, dehumidification bracket; 320, dehumidification sheet; 400, inner cylinder; 410, inlet; 411, exhaust fan; 420, outlet; 421, blower; 500, circuit mounting plate; 510, support plate; 600, first sealing plate; 700, second sealing plate; 710, air inlet duct; 720, air outlet duct; 810, first motor; 820, second motor. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0033] An embodiment of a self-heating distribution box of the present invention is as follows Figures 1 to 7 As shown: a self-heating distribution box includes a support cylinder 100, an adjustment cylinder 200, an inner cylinder 400, a dehumidification component 300, a circuit installation plate 500, and a driving device.

[0034] The support tube 100 is vertically arranged, and two empty slots 110 are oppositely provided on the side wall;

[0035] The regulating tube 200 is coaxially arranged inside the supporting tube 100, and an air inlet 210 and an air outlet 220 are oppositely arranged on the regulating tube 200, and a filter screen 230 is installed on the air inlet 210; the air inlet 210 and the air outlet 220 extend out from two empty slots 110 on the side wall of the supporting tube 100 respectively.

[0036] The inner cylinder 400 is vertically arranged in the regulating cylinder 200; an inlet 410 and an outlet 420 are relatively opened on the inner cylinder 400; the inlet 410 and the outlet 420 are offset from the empty slot 110 on the supporting cylinder 100; an exhaust fan 411 is provided at the inlet 410, and a blower 421 is provided at the outlet 420; a first sealing plate 600 and a second sealing plate 700 are provided between the inner cylinder 400 and the regulating cylinder 200, and the first sealing plate 600 and the second sealing plate 700 separate an air inlet duct 710 and an air outlet duct 720; the inlet 410 and the air inlet 210 are located in the air inlet duct 710, and the outlet 420 and the air outlet 220 are located in the air outlet duct 720;

[0037] The dehumidification component 300 is cylindrical in shape and is rotatably disposed inside the regulating cylinder 200; the dehumidification component 300 is eccentrically disposed with the inner cylinder 400 and passes through the inner cylinder 400 at the inlet 410 and the outlet 420, so that part of the dehumidification component 300 is located inside the inner cylinder 400 and the rest is located in the air outlet duct 720 outside the inner cylinder 400;

[0038] The first sealing plate 600 is vertically disposed at the inlet 410 , with an outer end sealedly connected to the regulating cylinder 200 , and an inner end sealedly connected to the dehumidification assembly 300 .

[0039] The second sealing plate 700 is vertically arranged at the outlet 420, with the outer end sealed to the adjusting cylinder 200 and the inner end sealed to the inner cylinder 400; the upper ends of the first sealing plate 600 and the second sealing plate 700 are sealed to the top cover 130, and the lower ends are sealed to the support seat 140; the first sealing plate 600 and the second sealing plate 700 separate the air inlet duct 710 and the air outlet duct 720.

[0040] The circuit installation plate 500 is vertically arranged in the space enclosed by the inner circumferential wall of the dehumidification component 300 and the inner circumferential wall of the inner cylinder 400. The circuit installation plate 500 is used to install components inside the distribution box.

[0041] The driving device includes a first motor 810, which is used to drive the dehumidification component 300 to rotate, so that the dehumidification component 300 passes through the inlet 410, the outside of the inner cylinder 400, the outlet 420 and the inside of the inner cylinder 400 in sequence.

[0042] The present invention sets the dehumidification component 300 and the inner cylinder 400 eccentrically. During the operation of the distribution box, the first motor 810 drives the dehumidification component 300 to rotate continuously. The dehumidification component 300 changes to a wet state after passing through the inlet 410. After the dehumidification component 300 passes through the inlet 410, it is pre-regenerated by hot air. When the dehumidification component 300 rotates to the outlet 420, it is regenerated and becomes a dry state. The dehumidification component 300 continuously changes between wet and dry states. While ensuring the dehumidification effect, the frequency of manual maintenance of the dehumidification component 300 is reduced, and the workload is reduced. The eccentric setting makes the dry part and the wet part of the dehumidification component 300 located inside and outside the inner cylinder 400, respectively. Even when the moisture in the wet dehumidification component 300 evaporates, the evaporated water vapor is located outside the inner cylinder 400, and will not cause damage to the components on the circuit mounting plate 500.

[0043] In this embodiment, if Figure 2-Figure 4 As shown, the regulating cylinder 200 is rotatably arranged inside the supporting cylinder 100, and the air inlet 210 and the air outlet 220 can rotate in the empty slot 110 where they are located; the driving device also includes a second motor 820 and a humidity sensing structure, and the second motor 820 is used to drive the regulating cylinder 200 to rotate; the humidity sensing structure is used to adjust the rotation angle of the regulating cylinder 200 according to the air humidity. In the initial state, the air inlet 210 is in contact with the vertical edge of one side of the empty slot 110. The greater the air humidity, the greater the rotation angle of the regulating cylinder 200, and the angle is set to ensure that the heat dissipation wind resistance is not large while not affecting the regeneration work of the dehumidification component 300.

[0044] The humidity sensing structure drives the second motor 820 to rotate according to the air humidity. The higher the air humidity, the greater the rotation angle of the second motor 820. When the second motor 820 rotates, the second gear and the gear ring drive the adjustment cylinder 200 to rotate. The higher the humidity, the greater the rotation angle. When the adjustment cylinder 200 rotates at a greater angle, the distance between the outlet 420 and the air outlet 220 is greater, and the hot air in the air outlet duct 720 needs to flow through a longer distance before it can flow to the outside. The hot air can perform a longer pre-regeneration operation on the humid dehumidification component 300. Even if the humidity in the air is very high, it will not affect the dehumidification and regeneration effect of the dehumidification component 300. And when the rotation angle of the adjustment cylinder 200 is larger, the distance between the inlet 410 and the air inlet 210 is larger, and the cold air in the air inlet duct 710 needs to flow through a longer distance before it can pass through the inlet 410. In this process, the drying and dehumidification component 300 located inside the inner cylinder 400 can be cooled through heat exchange, especially the periphery of the dehumidification component 300, to avoid the moisture in the dehumidification component 300 from volatilizing into the inner cylinder 400 due to the high temperature inside the inner cylinder 400, thereby avoiding damage to components.

[0045] In this embodiment, if Figure 3As shown, the first motor 810 is fixedly mounted on the circuit mounting plate 500, and the output end of the first motor 810 is synchronously connected to the first gear, and the first gear is transmission-connected to the dehumidification component 300. The first motor 810 drives the dehumidification component 300 to rotate continuously through the first gear, and the dehumidification component 300 passes through the inlet 410, the outer outlet 420 of the inner drum 400, and the inner drum 400 in sequence to complete the cycle of moisture absorption, pre-regeneration, and regeneration.

[0046] In this embodiment, if Figure 3 As shown, the second motor 820 is installed between the adjusting cylinder 200 and the inner cylinder 400, and is fixedly installed on the inner cylinder 400; the second motor 820 is synchronously rotated with a second gear, and a gear ring is fixedly connected to the inner wall of the upper end of the adjusting cylinder 200, and the second gear is meshed with the gear ring, so that when the second motor 820 rotates, the adjusting cylinder 200 is driven to rotate through the second gear and the gear ring.

[0047] In this embodiment, if Figure 3 , Figure 4 As shown, the dehumidification assembly 300 includes a dehumidification bracket 310 and a plurality of dehumidification sheets 320; the dehumidification bracket 310 is cylindrical, and a plurality of mounting grooves are provided on the side wall along the circumferential direction, and a dehumidification sheet 320 is installed in each mounting groove. After the dehumidification sheet 320 has been used for a long time, the dehumidification sheet 320 can be replaced according to the situation, without replacing the dehumidification assembly 300 as a whole, thereby reducing the equipment maintenance process.

[0048] In this embodiment, if Figure 4 As shown, a support plate 510 is provided between the inner cylinder 400 and the circuit installation plate 500 , and two ends of the support plate 510 are fixedly connected to the inner cylinder 400 and the circuit installation plate 500 , respectively.

[0049] In this embodiment, if Figure 4 As shown, a filter screen 230 is installed on the air outlet 220 to prevent dust in the air from entering the air outlet duct 720 from the air outlet 220 and adhering to the dehumidification sheet 320 .

[0050] In this embodiment, a top cover 130 is fixedly connected to the upper end of the support tube 100 ; a support seat 140 is fixedly connected to the lower end of the support tube 100 , and a through hole for passing the circuit is provided on the support seat 140 and the support tube 100 .

[0051] In this embodiment, if Figure 2 , Figure 6 , Figure 7As shown, a charging gun mounting bracket 120 is provided on the support tube 100, and a wire outlet 141 is provided on the side wall of the support seat 140; there are two charging gun mounting brackets 120, and two corresponding wire outlets 141 are provided. The two charging guns are arranged on the support tube 100 opposite to each other and are located between the two empty slots 110. One distribution box can be installed with two chargers to charge two electric vehicles at the same time, while achieving the same charging effect, reducing the occupied area and facilitating user use.

[0052] In this embodiment, if Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a rainproof plate 150 is provided above the charging gun mounting bracket 120, and the rainproof plate 150 is fixedly connected to the supporting tube 100 to prevent the charging gun from being damaged by rain.

[0053] In combination with the above embodiments, the use principle and working process of the present invention are as follows: in the initial state, the air inlet 210 is located at the position closest to the exhaust fan 411. At this time, the distance between the air inlet 210 and the inlet 410 is the smallest, and the distance between the air outlet 220 and the outlet 420 is the smallest. At this time, the heat dissipation wind resistance is the smallest.

[0054] During operation, the components continue to generate heat, the temperature inside the inner cylinder 400 rises, and the exhaust fan 411, the blower 421 and the first motor 810 are started; the exhaust fan 411 draws external air into the air inlet duct 710; the blower 421 allows the internal air to flow to the outside; after the first motor 810 is started, the first motor 810 drives the dehumidification component 300 to rotate continuously counterclockwise through the first gear.

[0055] The external air passes through the filter 230 at the air inlet 210, and after the dust is filtered, it enters the air inlet duct 710 from the air inlet 210, and contacts the dehumidification sheet 320 at the inlet 410 under the action of the exhaust fan 411, and the moisture is absorbed by the dehumidification sheet 320; at this time, the air passing through the dehumidification sheet 320 is dry cold air; the dry cold air continues to flow toward the outlet 420, and when the dry cold air contacts the components on the circuit installation board 500, heat exchange occurs with the components, the temperature of the components is reduced, and the air becomes dry hot air; at the same time, the wet dehumidification sheet 320 rotates counterclockwise continuously and moves toward the outlet 420; the dry hot air is discharged from the outlet 420 under the action of the blower 421. The dehumidifier 320 flows from the outlet 420 to the air outlet duct 720, and the moisture in the wet dehumidification sheet 320 facing the outlet 420 is blown to the air outlet duct 720, so as to heat and regenerate the dehumidification sheet 320, and the dehumidification sheet 320 becomes dry; thereafter, the hot air passes through the air outlet duct 720, and during this process, the heat in the air heats the dehumidification sheet 320 located between the outlet 420 and the air outlet 220, and assists the regeneration of the dehumidification sheet 320, and then the air flows from the air outlet 220 to the outside; the regenerated dry dehumidification sheet 320 continues to rotate counterclockwise, rotates to between the circuit mounting plate 500 and the inner cylinder 400, and then rotates to the inlet 410, completing a dehumidification regeneration cycle.

[0056] Since the dehumidification component 300 continuously changes its wet and dry state, the frequency of manual maintenance of the dehumidification component 300 is reduced while ensuring the dehumidification effect, thereby reducing the workload.

[0057] The eccentric setting of the inner cylinder 400 and the dehumidification component 300 makes the dry part and the wet part of the dehumidification sheet 320 respectively located inside and outside the inner cylinder 400. Even when the moisture in the wet dehumidification component 300 evaporates, the evaporated water vapor is located outside the inner cylinder 400 and will not cause damage to the components on the circuit mounting board 500.

[0058] The humidity sensing structure drives the second motor 820 to rotate according to the air humidity. The greater the air humidity, the greater the rotation angle of the second motor 820, but the rotation angle is based on the premise of smaller heat dissipation wind resistance. When the second motor 820 rotates, the second gear and the gear ring drive the adjustment cylinder 200 to rotate. The greater the rotation angle of the adjustment cylinder 200, the greater the distance between the inlet 410 and the air inlet 210, and the cold air in the air inlet duct 710 needs to flow through a longer distance before it can pass through the inlet 410. The regenerated dehumidification sheet 320 will have some moisture remaining on the periphery, but it will not affect the moisture absorption effect on the humid air; the cold air in the air inlet duct 710 can cool the periphery of the dehumidification sheet 320, thereby preventing a small amount of moisture in the periphery of the dehumidification sheet 320 in the inner cylinder 400 from volatilizing due to high temperature, thereby avoiding increasing the humidity inside the inner cylinder 400; the greater the rotation angle of the adjustment cylinder 200, the greater the distance between the outlet 420 and the air outlet 220, and the hot air in the air outlet duct 720 needs to flow through a longer distance before it can flow to the outside, and the hot air increases the pre-regeneration of the humid part of the dehumidification sheet 320.

[0059] After the charging work is completed, the components no longer generate heat, but the heat dissipation work continues. At this time, the second motor 820 is operated. The second motor 820 drives the adjustment cylinder 200 to rotate through the second gear and the gear ring, so that the angle between the air inlet 210 and the inlet 410 reaches the maximum, and the distance is also the maximum. The cold air in the air inlet duct 710 exchanges heat with the inner cylinder 400, and cools the regenerated dehumidification sheet 320 located inside the inner cylinder 400, especially the periphery of the dehumidification sheet 320 containing a small amount of moisture, to avoid the moisture in the dehumidification sheet 320 volatilizing to the inner cylinder 400 due to the high temperature in the inner cylinder 400, reduce the moisture in the inner cylinder 400, and thus avoid the phenomenon of damaging the components. The angle between the air outlet 220 and the outlet 420 reaches the maximum, and the distance is also the maximum. The hot air in the air outlet duct 720 increases the pre-regeneration effect of the dehumidification sheet 320 outside the inner cylinder 400, ensuring the dryness of the dehumidification sheet 320 when it is used next time.

[0060] After the heat dissipation work is completed, the exhaust fan 411, the air supply fan 421 and the first motor 810 are turned off, and the adjustment cylinder 200 is restored to the initial state.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-heating distribution box, characterized in that: include: The support cylinder is vertically arranged, and two empty slots are oppositely provided on the side wall; The regulating cylinder is coaxially arranged inside the supporting cylinder, and an air inlet and an air outlet are arranged opposite to each other on the regulating cylinder, and a filter is installed on the air inlet; the air inlet and the air outlet extend from two empty slots on the side wall of the supporting cylinder respectively; The inner cylinder is vertically arranged in the regulating cylinder; an inlet and an outlet are oppositely opened on the inner cylinder; the inlet and the outlet are offset from the empty slot on the supporting cylinder; an exhaust fan is arranged at the inlet, and an air supply fan is arranged at the outlet; a first sealing plate and a second sealing plate are arranged between the inner cylinder and the regulating cylinder, and the first sealing plate and the second sealing plate separate the air inlet duct and the air outlet duct; the inlet and the air inlet are located in the air inlet duct, and the outlet and the air outlet are located in the air outlet duct; The dehumidification component is cylindrical in shape and rotatably arranged inside the regulating cylinder; the dehumidification component is eccentrically arranged with the inner cylinder and passes through the inner cylinder at the inlet and outlet, so that part of the dehumidification component is in the inner cylinder and the rest is in the air outlet duct outside the inner cylinder; The circuit installation plate is arranged in the space enclosed by the inner circumferential wall of the dehumidification component and the inner circumferential wall of the inner cylinder, and the circuit installation plate is used to install the components inside the distribution box; The driving device includes a first motor, the first motor is used to drive the dehumidification component to rotate, so that the dehumidification component passes through the inlet, the outside of the inner cylinder, the outlet and the inside of the inner cylinder in sequence; The regulating cylinder is rotatably arranged inside the supporting cylinder, and the air inlet and the air outlet can rotate in the empty slot where they are located; the driving device also includes a second motor and a humidity sensing structure, the second motor is used to drive the regulating cylinder to rotate; the humidity sensing structure is used to adjust the rotation angle of the regulating cylinder according to the air humidity.

2. A self-heating distribution box according to claim 1, characterized in that: The first motor is fixedly mounted on the circuit mounting plate, and the output end of the first motor is synchronously and rotatably connected to the first gear, which is transmission-connected to the dehumidification component.

3. A self-heating distribution box according to claim 2, characterized in that: The second motor is installed between the adjustment tube and the inner tube, and is fixedly installed on the inner tube; the second motor is synchronously connected to the second gear, and a gear ring is fixedly connected to the inner wall of the upper end of the adjustment tube, and the second gear is meshed with the gear ring.

4. A self-heating distribution box according to claim 3, characterized in that: The dehumidification component comprises a dehumidification bracket and a plurality of dehumidification sheets; the dehumidification bracket is cylindrical, and a plurality of mounting grooves are opened on the side wall along the circumferential direction, and a dehumidification sheet is installed in each mounting groove.

5. A self-heating distribution box according to claim 4, characterized in that: A support plate is arranged between the inner tube and the circuit installation plate, and two ends of the support plate are fixedly connected to the inner tube and the circuit installation plate respectively.

6. A self-heating distribution box according to claim 1, characterized in that: A filter is installed on the air outlet.

7. A self-heating distribution box according to claim 6, characterized in that: The upper end of the support tube is fixedly connected with a top cover; the lower end of the support tube is fixedly connected with a support seat.

8. A self-heating distribution box according to claim 7, characterized in that: A charging gun mounting bracket is provided on the support tube, and a wire outlet is provided on the side wall of the support seat; two charging gun mounting brackets are provided, and two corresponding wire outlets are provided.

9. A self-heating distribution box according to claim 8, characterized in that: A rain shield is provided above the charging gun mounting bracket.

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