Dehumidification device of outdoor electrical equipment box

Abstract

The utility model provides a dehumidification device of an outdoor electrical equipment box, which belongs to the field of dehumidification devices and comprises a box body, a valve, a fan, a rainwater collecting assembly and a control assembly. A window is formed in the box body; the valve is arranged in the box body, moves relative to the box body and opens or closes the window; the fan is arranged in the box body and performs air convection inside and outside the box body through the window; the rainwater collecting assembly is arranged at the top of the box body and collects rainwater; the control assembly is connected with the valve and the rainwater collecting assembly, the control assembly drives the valve to be opened under the gravity action of rainwater, or the control assembly drives the valve to be closed after the rainwater is evaporated; through the self-weight effect of rainwater collected by the rainwater collecting assembly, the sliding pin triggers the travel switch to connect the power supply and the motor, and different forming switches are triggered through lifting of the valve to disconnect the power supply and the motor, so that the motor is controlled to be opened and closed through the rainwater collecting condition; therefore, the valve can be opened in a rainy day and the fan is started for heat dissipation and dehumidification.

Description

Technical Field

[0001] The utility model relates to the technical field of dehumidification devices, in particular to a dehumidification device for an outdoor electrical equipment box. Background Art

[0002] The MPPT IoT controller is a commonly used controller in solar photovoltaic systems. When it is used in a wind-solar-city grid-electricity complementary system, the controller and other electrical components are installed inside the electric control box. The controller is usually placed outdoors and generates a lot of heat during use. When the outdoor environment is rainy and humid, the temperature difference between the inside and outside of the electric control box is large, which will cause water vapor to be generated inside the electric control box. The water vapor may cause the risk of short circuit damage to various electrical components of the controller.

[0003] Chinese patent CN117060243 discloses a dehumidification and cooling device for an outdoor power ring network cabinet, which uses wind power in the outdoor environment to generate electricity and power the fan inside the electric control box, so as to intermittently dissipate heat and dehumidify the electrical components inside the cabinet. However, the wind conditions in the outdoor environment are difficult to predict, so it is difficult to control the intermittent start-up timing of the fan inside the electric control box, and it is also difficult to ensure that there will be strong wind in the rainy environment to drive the fan to start for heat dissipation and dehumidification. Utility Model Content

[0004] In view of this, the utility model proposes a dehumidification device for an outdoor electrical equipment box, which is used to solve the problem that the wind conditions in the outdoor environment are difficult to predict, and therefore it is difficult to control the intermittent start-up timing of the wind power generation fan inside the electrical control box, and it is also difficult to ensure that a strong wind will be generated in the rainy environment to drive the fan to start for heat dissipation and dehumidification.

[0005] The technical solution of the utility model is achieved as follows: the utility model provides a dehumidification device for an outdoor electrical equipment box, comprising a box body, a valve, a fan, a rainwater collection component and a control component; a window is provided on one side of the box body; the valve is arranged in the box body and located inside the window, and the valve moves relative to the box body and opens or closes the window; the fan is arranged in the box body and performs air convection inside and outside the box body through the window; the rainwater collection component is arranged on the top of the box body and collects rainwater; the control component is connected to the valve and the rainwater collection component, and the control component drives the valve to open under the gravity of rainwater, or drives the valve to close after the rainwater evaporates.

[0006] On the basis of the above technical solution, preferably, it also includes a driving component, which is connected to the valve and drives the valve to move relative to the box body, and the driving component is electrically connected to the control component and starts or stops under the action of the control component.

[0007] Further preferably, the rainwater collection component includes a sliding pin, a collection bowl and an elastic member; a slot is opened on the top of the box body in a vertical direction along the horizontal plane; one end of the sliding pin is inserted in the slot and the other end extends away from the box body to the outside of the box body, the sliding pin moves along the slot and connects with the control component or loses contact with the control component, so that the control component controls the driving component to open or close; the collection bowl is arranged in the sliding pin and moves synchronously with the sliding pin, and the collection bowl receives naturally falling rainwater; the elastic member is arranged between the collection bowl and the top of the box body and its two ends are respectively connected to the bottom surface of the collection bowl and the top surface of the box body, and the elastic member is elastically compressed when rainwater is contained in the collection bowl.

[0008] Further preferably, the driving assembly includes a screw, a slider, a slave gear, a motor and a main gear; at least one screw is arranged on the inner wall of the box body and is located on one side of the window, and both ends of the screw extend in a vertical direction along the horizontal plane and are respectively axially connected to the box body; the slider is fixed on the side of the valve, the slider is screwed on the screw and moves along the screw; the slave gear is arranged at one end of the screw and rotates axially synchronously with the screw; the motor is arranged in the box body and has an output end; the main gear is arranged on the output end of the motor and rotates axially under the drive of the motor, and the main gear cooperates with the slave gear.

[0009] Further preferably, the control component includes a power supply, a first circuit branch, a second circuit branch, a first stroke switch, a second stroke switch and a third stroke switch; the power supply is arranged in a casing; the motor is electrically connected to the positive and negative poles of the power supply through the first circuit branch, and the motor is electrically connected to the positive and negative poles of the power supply in reverse through the second circuit branch; the first stroke switch is arranged on the inner wall of the slot; a notch is provided on the outer peripheral wall of the insertion end of the sliding pin, the sliding pin moves in the direction of insertion into the slot and triggers the first stroke switch to connect the first circuit branch, and aligns the notch with the first stroke switch; the sliding pin moves in the direction of leaving the slot and triggers the first stroke switch again to connect the second circuit branch, and the first stroke switch is spaced apart from the insertion end of the sliding pin; the second stroke switch and the third stroke switch are respectively arranged on the inner wall of the casing, the second stroke switch and the third stroke switch are respectively arranged at both ends of the valve movement path, and the second stroke switch is arranged above the third stroke switch; the valve faces the second stroke switch and triggers the second stroke switch to disconnect the first circuit branch; the valve faces the third stroke switch and triggers the third stroke switch to disconnect the second circuit branch.

[0010] More preferably, the rainwater collection assembly also includes a cover body; the cover body is arranged on the collection bowl, and mesh holes are evenly arranged on the cover body.

[0011] More preferably, the cover body is hemispherical.

[0012] On the basis of the above technical solution, preferably, it also includes a filter screen, and the filter screen is arranged in the window.

[0013] On the basis of the above technical solution, preferably, a shielding plate is further included, one end of the shielding plate is arranged on the top of the window and the other end extends horizontally in a direction away from the window.

[0014] On the basis of the above technical solution, preferably, it further comprises a sealing ring, which is arranged around the edge of the end surface of the valve plate facing the window, and the sealing ring is tightly attached to the inner wall of the box body.

[0015] The dehumidification device for an outdoor electrical equipment box of the utility model has the following beneficial effects compared with the prior art:

[0016] The utility model collects rainwater through the deadweight of the rainwater collecting assembly, so that the sliding pin triggers the travel switch to connect the power supply and the motor, and triggers different forming switches to disconnect the power supply and the motor through the valve lifting and lowering, thereby controlling the opening and closing of the motor according to the rainwater collection situation, thereby enabling the valve to be opened in a rainy environment and start the fan to dissipate heat and dehumidify, and closing the valve and the fan in a non-rainy environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional diagram of the dehumidification device of the utility model;

[0019] Figure 2 It is a side sectional view of the drive assembly of the utility model;

[0020] Figure 3 A side sectional view of another state of the drive assembly of the utility model;

[0021] Figure 4 A three-dimensional diagram of the drive assembly of the utility model;

[0022] Figure 5 It is a front cross-sectional view of the rainwater collection assembly of the utility model;

[0023] Figure 6 A front cross-sectional view of another state of the rainwater collection assembly of the utility model;

[0024] Figure 7 It is a circuit diagram of the control component of the utility model.

[0025] In the figure: 1. box body; 101. window; 102. slot; 2. valve; 3. fan; 4. rainwater collection component; 41. slide pin; 42. collection bowl; 43. elastic member; 44. cover body; 401. notch; 5. control component; 51. power supply; 52. first circuit branch; 53. second circuit branch; 54. first travel switch; 55. second travel switch; 56. third travel switch; 6. drive component; 61. screw; 62. slider; 63. slave gear; 64. motor; 65. main gear; 7. filter; 8. baffle; 9. sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 As shown, a dehumidification device for an outdoor electrical equipment box of the utility model comprises a box body 1, a valve 2, a fan 3, a rainwater collection component 4 and a control component 5.

[0028] The box 1 is an electrical equipment box installed outdoors, usually with a door that can be opened and closed, so the box 1 is not a completely sealed environment, which makes it easy for moisture from the outside environment to enter the box 1 in rainy days. Combined with the heat generated by the operation of the electrical equipment inside the box 1, the humidity inside the box 1 will increase significantly. A window 101 is opened on one side of the box 1, and a fan 3 is usually installed inside the window 101 for heat dissipation and dehumidification.

[0029] The valve 2 is arranged in the box body 1 and located inside the window 101 . The valve 2 moves relative to the box body 1 and opens or closes the window 101 . The valve 2 can be closely attached to the inner wall of the box body 1 .

[0030] The fan 3 is disposed in the housing 1 and performs air convection inside and outside the housing 1 through the window 101 .

[0031] The rainwater collecting assembly 4 is arranged on the top of the box 1 and collects rainwater. In a rainy environment, rainwater will naturally fall into the rainwater collecting assembly 4, and the weight of the rainwater collecting assembly 4 will increase; and when it becomes a sunny environment, the rainwater in the rainwater collecting assembly 4 will gradually evaporate, and the weight of the rainwater collecting assembly 4 will decrease.

[0032] The control component 5 is connected to the valve 2 and the rainwater collection component 4. The control component 5 drives the valve 2 to open under the gravity of the rainwater, or drives the valve 2 to close after the rainwater evaporates. It should be noted that the control component 5 can also control the opening and closing of the fan 3 at the same time. When the valve 2 is opened, the fan 3 is also turned on, and when the valve 2 is closed, the fan 3 is also turned off; the fan 3 can also be controlled to open and close by another control system, so as to achieve normal opening or normal closing or regular intermittent opening and closing.

[0033] exist Figure 4 In a preferred embodiment shown, in order to drive the valve 2 to move, a driving assembly 6 is also included.

[0034] The driving component 6 is connected to the valve 2 and drives the valve 2 to move relative to the box 1 . The driving component 6 is electrically connected to the control component 5 and is started or stopped under the action of the control component 5 .

[0035] exist Figure 5 In a preferred embodiment shown, in order to effectively collect rainwater, the rainwater collection assembly 4 includes a sliding pin 41 , a collection bowl 42 and an elastic member 43 .

[0036] A slot 102 is formed on the top of the box body 1 in a vertical direction along the horizontal plane.

[0037] One end of the sliding pin 41 is inserted into the slot 102 and the other end extends away from the box body 1 to the outside of the box body 1. The sliding pin 41 moves along the slot 102 and connects with the control component 5 or disconnects from the control component 5, so that the control component 5 controls the drive component 6 to open or close.

[0038] The collecting bowl 42 is arranged in the sliding pin 41 and moves synchronously with the sliding pin 41, and the collecting bowl 42 receives the rainwater that falls naturally. A step is also arranged around the slot 102 on the box body 1 to limit the moving distance of the sliding pin 41 and to support the collecting bowl 42.

[0039] The elastic member 43 is disposed between the collection bowl 42 and the top of the box body 1, and its two ends are respectively connected to the bottom surface of the collection bowl 42 and the top surface of the box body 1. The elastic member 43 is elastically compressed when rainwater is contained in the collection bowl 42, and pushes the collection bowl 42 to return to its original position after the rainwater in the collection bowl 42 evaporates. The elastic member 43 may be a spring.

[0040] exist Figure 4 In a preferred embodiment shown, in order to drive the valve 2 to rise and fall, the driving assembly 6 includes a screw 61 , a slider 62 , a slave gear 63 , a motor 64 and a master gear 65 .

[0041] Among them, at least one screw 61 is set on the inner wall of the box body 1 and located on one side of the window 101. The two ends of the screw 61 extend along the vertical direction of the horizontal plane and are respectively axially connected to the box body 1; but the screws 61 are usually symmetrically set on both sides of the window 101.

[0042] The slider 62 is fixed on the side of the valve 2 , and the slider 62 is screwed onto the screw rod 61 and moves along the screw rod 61 .

[0043] The slave gear 63 is disposed at one end of the screw rod 61 and rotates axially synchronously with the screw rod 61 .

[0044] The motor 64 is disposed in the housing 1 and has an output terminal. The motor 64 can be a rotary motor.

[0045] The main gear 65 is disposed on the output end of the motor 64 and is driven by the motor 64 to rotate axially. The main gear 65 cooperates with the slave gear 63 .

[0046] When the above technical solution is adopted, the motor 64 starts and drives the main gear 65 to drive the slave gear 63 to rotate, and the screw 61 rotates along the axis of the slave gear 63. Since the slider 62 is threadedly connected to the screw 61, and the valve 2 fixed to the slider 62 restricts the slider 62 from rotating synchronously with the screw 61, the slider 62 will drive the valve 2 to rise and fall along the screw 61; the driving direction of the motor 64 is changed by changing the flow direction of the current inside the motor 64, thereby realizing the lifting and lowering of the valve 2.

[0047] exist Figure 7 In a preferred embodiment shown, the combination Figure 4 In order to control the direction of the current inside the motor 64 and control the valve 2 to move with the movement of the sliding pin 41, the control component 5 includes a power supply 51, a first circuit branch 52, a second circuit branch 53, a first travel switch 54, a second travel switch 55 and a third travel switch 56.

[0048] The power source 51 is arranged in the box body 1. The power source 51 can be a storage battery.

[0049] The motor 64 is electrically connected to the positive and negative electrodes of the power source 51 through the first circuit branch 52 , and the motor 64 is electrically connected to the positive and negative electrodes of the power source 51 in reverse direction through the second circuit branch 53 .

[0050] The first travel switch 54 is disposed on the inner wall of the slot 102 .

[0051] A notch 401 is provided on the outer peripheral wall of the insertion end of the sliding pin 41, and the sliding pin 41 moves along the direction of the insertion slot 102 and triggers the first travel switch 54 to connect the first circuit branch 52, and the notch 401 is aligned with the first travel switch 54. The top and bottom inner walls of the notch 401 can be set as inclined surfaces or convex arc surfaces, so as to effectively trigger the first travel switch 54.

[0052] The sliding pin 41 moves in the direction of disengaging the slot 102 and triggers the first travel switch 54 again to connect the second circuit branch 53, and the first travel switch 54 is spaced apart from the insertion end of the sliding pin 41. The bottom of the sliding pin 41 can be set as a ball head or a cone head so that the first travel switch 54 can be effectively triggered.

[0053] The second travel switch 55 and the third travel switch 56 are respectively arranged on the inner wall of the box body 1 , and the second travel switch 55 and the third travel switch 56 are respectively arranged at two ends of the moving path of the valve 2 , and the second travel switch 55 is arranged above the third travel switch 56 .

[0054] The valve 2 moves toward the second travel switch 55 and triggers the second travel switch 55 to disconnect the first circuit branch 52 ; the valve 2 moves toward the third travel switch 56 and triggers the third travel switch 56 to disconnect the second circuit branch 53 .

[0055] When the above technical solution is adopted, in a rainy day environment, the rainwater collected in the collecting bowl 42 increases the weight, causing the sliding pin 41 to move downward and trigger the first stroke switch 54 for the first time. The first stroke switch 54 connects the first circuit branch 52 to connect the power supply 51 to the motor 64, and the motor 64 drives the valve 2 to rise until the valve 2 triggers the second stroke switch 55. The second stroke switch 55 disconnects the first circuit branch 52 to disconnect the power supply 51 from the motor 64; in a rainy or sunny day environment, the rainwater in the collecting bowl 42 gradually evaporates to reduce the weight, the elastic member 43 pushes the sliding pin 41 to rise and reset and trigger the first stroke switch 54 for the second time. The first stroke switch 54 connects the second circuit branch 53 and disconnects the first circuit branch 52, and also causes the power supply 51 to reversely connect the motor 64. The motor 64 flips and drives the valve 2 to descend until the valve 2 triggers the third stroke switch 56. The third stroke switch 56 disconnects the first circuit branch 52 to disconnect the power supply 51 from the motor 64. It should be noted that it is a common function of the travel switch that the first travel switch 54 is triggered twice and connected to different circuit branches respectively, so the principle and specific circuit structure of the travel switch having the function of switching circuit branches are not described in detail here.

[0056] exist Figure 6 In a preferred embodiment shown, in order to prevent foreign matter from entering the collection bowl 42 and causing the sliding pin 41 to be unable to return to its original position after moving downward, the rainwater collection assembly 4 also includes a cover 44.

[0057] The cover body 44 is disposed on the collection bowl 42 , and mesh holes are evenly arranged on the cover body 44 , so the cover body 44 has a filtering capability to prevent external debris from entering the collection bowl 42 .

[0058] exist Figure 6In a preferred embodiment shown, the cover body 44 is hemispherical, so that foreign debris falling onto the cover body 44 will be bounced aside, allowing rainwater to enter the collection bowl 42 normally.

[0059] exist Figure 2 In a preferred embodiment shown, in order to prevent foreign matter from entering the box body 1 , a filter screen 7 is further included, and the filter screen 7 is arranged in the window 101 .

[0060] exist Figure 3 In a preferred embodiment shown, in order to prevent rainwater from flowing into the box body 1 through the window 101 along the outer wall of the box body 1, a shielding plate 8 is also included.

[0061] One end of the shielding plate 8 is disposed on the top of the window 101 and the other end thereof extends horizontally in a direction away from the window 101 .

[0062] exist Figure 3 In a preferred embodiment shown, a sealing ring 9 is also included.

[0063] The sealing ring 9 is arranged around the end edge of the valve plate facing the window 101 , and the sealing ring 9 is closely attached to the inner wall of the box body 1 , so that when the valve 2 is closed, it can prevent foreign matter from entering the box body 1 .

[0064] 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dehumidification device for an outdoor electrical equipment box, characterized in that: It comprises a box (1), a valve (2), a fan (3), a rainwater collection component (4) and a control component (5); A window (101) is provided on one side of the box body (1); The valve (2) is arranged in the box body (1) and is located inside the window (101); the valve (2) moves relative to the box body (1) and opens or closes the window (101); The fan (3) is arranged in the box (1) and performs air convection inside and outside the box (1) through the window (101); The rainwater collection component (4) is arranged on the top of the box (1) and collects rainwater; The control component (5) is connected to the valve (2) and the rainwater collection component (4); the control component (5) drives the valve (2) to open under the action of the gravity of rainwater, or the control component (5) drives the valve (2) to close after the rainwater evaporates.

2. The dehumidification device for an outdoor electrical equipment box according to claim 1, characterized in that: It also comprises a driving component (6), wherein the driving component (6) is connected to the valve (2) and drives the valve (2) to move relative to the box body (1), and the driving component (6) is electrically connected to the control component (5) and is started or stopped under the action of the control component (5).

3. The dehumidification device for an outdoor electrical equipment box according to claim 2, characterized in that: The rainwater collection assembly (4) comprises a sliding pin (41), a collection bowl (42) and an elastic member (43); The top of the box body (1) is provided with a slot (102) in a vertical direction along the horizontal plane; One end of the sliding pin (41) is inserted into the slot (102) and the other end extends away from the box body (1) to the outside of the box body (1); the sliding pin (41) moves along the slot (102) and connects with the control component (5) or is disconnected from the control component (5), so that the control component (5) controls the drive component (6) to open or close; The collecting bowl (42) is arranged inside the sliding pin (41) and moves synchronously with the sliding pin (41), and the collecting bowl (42) collects naturally falling rainwater; The elastic member (43) is arranged between the collection bowl (42) and the top of the box body (1), and its two ends are respectively connected to the bottom surface of the collection bowl (42) and the top surface of the box body (1). The elastic member (43) is elastically compressed when rainwater is contained in the collection bowl (42).

4. The dehumidification device for an outdoor electrical equipment box according to claim 3, characterized in that: The driving assembly (6) comprises a screw (61), a slider (62), a slave gear (63), a motor (64) and a master gear (65); At least one of the screw rods (61) is disposed on the inner wall of the box body (1) and is located on one side of the window (101); both ends of the screw rod (61) extend in a direction perpendicular to the horizontal plane and are respectively axially connected to the box body (1); The slider (62) is fixedly mounted on a side of the valve (2), and the slider (62) is screwed onto the screw rod (61) and moves along the screw rod (61); The slave gear (63) is arranged at one end of the screw rod (61) and rotates axially synchronously with the screw rod (61); The motor (64) is arranged in the box (1) and has an output end; The main gear (65) is arranged on the output end of the motor (64) and is driven by the motor (64) to rotate axially, and the main gear (65) is matched with the slave gear (63).

5. The dehumidification device for an outdoor electrical equipment box according to claim 4, characterized in that: The control component (5) comprises a power supply (51), a first circuit branch (52), a second circuit branch (53), a first travel switch (54), a second travel switch (55), and a third travel switch (56); The power source (51) is arranged in the box (1); The motor (64) is electrically connected to the positive and negative poles of the power source (51) via the first circuit branch (52), and the motor (64) is electrically connected to the positive and negative poles of the power source (51) in reverse direction via the second circuit branch (53); The first travel switch (54) is arranged on the inner wall of the slot (102); A notch (401) is provided on the outer peripheral wall of the insertion end of the sliding pin (41); the sliding pin (41) moves in the direction of being inserted into the slot (102) and triggers the first travel switch (54) to connect the first circuit branch (52), and the notch (401) is aligned with the first travel switch (54); the sliding pin (41) moves in the direction of being separated from the slot (102) and triggers the first travel switch (54) again to connect the second circuit branch (53), and the first travel switch (54) is spaced apart from the insertion end of the sliding pin (41); The second travel switch (55) and the third travel switch (56) are respectively arranged on the inner side wall of the box body (1); the second travel switch (55) and the third travel switch (56) are respectively arranged at two ends of the moving path of the valve (2); the second travel switch (55) is arranged above the third travel switch (56); The valve (2) faces the second travel switch (55) and triggers the second travel switch (55) to disconnect the first circuit branch (52); the valve (2) faces the third travel switch (56) and triggers the third travel switch (56) to disconnect the second circuit branch (53).

6. The dehumidification device for an outdoor electrical equipment box according to claim 3, characterized in that: The rainwater collection assembly (4) further comprises a cover body (44); The cover body (44) is disposed on the collection bowl (42), and mesh holes are evenly arranged on the cover body (44).

7. The dehumidification device for an outdoor electrical equipment box according to claim 6, characterized in that: The cover body (44) is hemispherical.

8. The dehumidification device for an outdoor electrical equipment box according to claim 1, characterized in that: It also includes a filter screen (7), wherein the filter screen (7) is arranged in the window (101).

9. The dehumidification device for an outdoor electrical equipment box according to claim 1, characterized in that: It also comprises a shielding plate (8), one end of which is arranged on the top of the window (101) and the other end of which extends horizontally in a direction away from the window (101).

10. The dehumidification device for an outdoor electrical equipment box according to claim 1, characterized in that: It also comprises a sealing ring (9), which is arranged around the edge of the end surface of the valve plate facing the window (101), and the sealing ring (9) is in close contact with the inner wall of the box body (1).

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