Rotary dehumidifier applied to outdoor electrical cabinet

Abstract

The invention belongs to the field of dehumidification, and particularly discloses a rotary dehumidifier applied to an outdoor electrical cabinet, which comprises a shell, a dehumidification mechanism, a regeneration mechanism and a controller, the dehumidification mechanism comprises a middle frame arranged in the shell, a containing groove is formed in the middle frame, a dehumidification rotating wheel is movably arranged in the containing groove, and an exhaust fan is arranged between a cover plate at the front end of the dehumidification rotating wheel and the middle frame. The regeneration mechanism comprises a synchronous motor arranged at the input end of the dehumidification rotating wheel, a shell is installed on the portion, on one side of the periphery of the dehumidification rotating wheel, of the middle frame, a heater is arranged in the portion, at the front end of the dehumidification rotating wheel, of the shell, a fan is fixedly installed at an air inlet of the shell through an air duct, and an air outlet pipe is fixedly installed at the rear end of the shell. The rotating wheel dehumidification principle is utilized, moisture in the cabinet body is discharged out, the influence of the environment temperature is small, and the rotating wheel dehumidification cabinet is suitable for being used in outdoor electrical cabinets.

Description

Technical Field

[0001] The present invention belongs to the field of dehumidification, and particularly relates to a rotary dehumidifier applied to outdoor electrical cabinets. Background Art

[0002] Electrical cabinets are enclosed metal or non-metal boxes used to accommodate, protect, and manage electrical equipment and circuits. Moisture ingress into electrical cabinets can cause various hazards, including frequent occurrence of power equipment failures and tripping accidents caused by corrosion and aging of secondary components inside the cabinet; degradation of the insulation performance of components inside the cabinet, leading to poor contact or short circuits of equipment, and even equipment burnout, thus threatening the safe and stable operation of the equipment and the power grid; making it easier for terminal block screws and connecting pieces to rust, resulting in poor contact of secondary terminals, and then situations such as overheating and even secondary open circuits. Currently, there are three ways to dehumidify outdoor electrical cabinets: heaters, semiconductor dehumidifiers, and industrial air conditioners. Due to the relatively harsh working environmental conditions of outdoor electrical cabinets, the currently commonly used dehumidification methods have the following problems and deficiencies:

[0003] Firstly, for heaters, they reduce the relative humidity by raising the temperature, but cannot reduce the total amount of water vapor. Due to uneven heating of the heaters, low-temperature condensation is likely to occur on the inner surface of the cabinet far from the heater, and the presence of heaters increases the risk of electrical fires;

[0004] Secondly, for semiconductor dehumidifiers, their working effect is greatly affected by the ambient temperature, and they are suitable for indoor use. Their dehumidification effect is not ideal in high-temperature and low-temperature outdoor environments, and the moisture discharge method of semiconductor dehumidifiers is difficult to effectively discharge water outside the cabinet;

[0005] Thirdly, for industrial air conditioners, they are large in size and can only be used on larger cabinets such as substation control cabinets, and cannot be installed on small electrical cabinets such as terminal boxes. Moreover, industrial air conditioners also have problems of high failure rate and high maintenance cost. Summary of the Invention

[0006] The purpose of the present invention is to provide a rotary dehumidifier applied to outdoor electrical cabinets, which discharges the moisture inside the cabinet to the outside by using the principle of rotary dehumidification, is less affected by the ambient temperature, has a size suitable for installation on small outdoor electrical cabinets, has a simple structure, a low failure rate, and a low maintenance cost, so as to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A rotary dehumidifier applied to an outdoor electrical cabinet, comprising a housing, a dehumidification mechanism, a regeneration mechanism and a controller; the dehumidification mechanism includes a middle frame arranged in the housing, a placement groove is arranged on the middle frame, a dehumidification rotary wheel is movably arranged in the placement groove, a ventilation port is arranged on the middle frame at the bottom of the placement groove, a cover plate is installed at the front end of the housing, and an exhaust fan is arranged between the cover plate at the front end of the dehumidification rotary wheel and the middle frame, and a dry air outlet is arranged on the cover plate at the front end of the exhaust fan; the regeneration mechanism includes a synchronous motor arranged at the input end of the dehumidification rotary wheel, a housing is installed on the middle frame on one side of the periphery of the dehumidification rotary wheel, a heater is arranged in the housing at the front end of the dehumidification rotary wheel, a blower is fixedly installed at the air inlet of the housing through a duct, and an air outlet pipe is fixedly installed at the rear end of the housing.

[0009] Preferably, a humid air inlet is arranged on the cover plate at the front end of the ventilation port, a filter layer is movably arranged in the humid air inlet, and a filter screen is movably arranged in the humid air inlet at the front end of the filter layer.

[0010] Preferably, a mounting plate is fixedly installed on the periphery of the housing.

[0011] Preferably, an air outlet is arranged on the middle frame around the blower, an air inlet is arranged on the middle frame at the top of the ventilation port, and a return air duct is arranged between the air inlet and the air outlet at the rear end of the middle frame.

[0012] Preferably, a rotating frame is arranged at the rear end of the dehumidification rotary wheel, a toothed ring is fixedly installed on the rotating frame on the periphery of the dehumidification rotary wheel, a gear is arranged at the output end of the synchronous motor, and the gear meshes with the toothed ring.

[0013] Preferably, a humid air outlet is fixedly installed at the rear end of the housing, and the humid air outlet is communicated with the air outlet pipe.

[0014] Preferably, the controller is arranged on the middle frame at the top of the exhaust fan, and a wiring port is arranged on the cover plate around the controller.

[0015] Preferably, a rear frame is arranged in the housing at the rear end of the middle frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The present invention forms negative pressure through the exhaust fan to suck the humid air in the cabinet into the device, the dehumidification wheel will absorb the moisture in the air to make it dry, and then the dry air will be discharged into the cabinet through the exhaust fan, the fan will transport a part of the dry air dehumidified by the dehumidification wheel to the outer shell, and evaporate a part of the moisture in the dehumidification wheel after heating by the heater, and then the evaporated moisture will be discharged to the outside air through the dehumidification wheel, the synchronous motor will drive the dehumidification wheel to rotate, so that the moisture content in the dehumidification wheel is maintained in the required range, and the dehumidification work can be carried out continuously for a long time to meet the needs.

[0018] The present invention utilizes the principle of rotary dehumidification to discharge moisture inside the cabinet to the outside, is less affected by ambient temperature, and is suitable for use in outdoor electrical cabinets.

[0019] The present invention reduces the redundancy of equipment in the cabinet by adopting the cabinet door embedded installation method. Its size is smaller than that of an industrial air conditioner and is convenient for installation on a smaller electrical cabinet. The automatic control logic and fixed value parameters of its intelligent controller enable it to adapt to the dehumidification needs in different environments and can cooperate with other environmental management equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative labor. Among them:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a rear view of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the dehumidification wheel of the present invention;

[0025] Figure 5 It is a schematic diagram of the partial structure of the middle frame and the cover plate of the present invention;

[0026] Figure 6 It is a schematic diagram of the partial structure of the middle frame and the rear frame of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the heater of the present invention;

[0028] Figure 8 It is a schematic diagram of the partial structure of the gear ring of the present invention;

[0029] Figure 9 This is the control strategy block diagram of the dehumidification and air-conditioning linkage function of the present invention;

[0030] Figure 10 This is the control strategy block diagram of the heating function of the present invention;

[0031] Figure 11 This is the control strategy block diagram of the ventilation function of the present invention.

[0032] In the figure: 1. Housing; 2. Mounting plate; 3. Cover plate; 4. Wiring port; 5. Dry air outlet; 6. Humid air inlet; 601. Filter screen; 602. Filter layer; 7. Humid air outlet; 8. Middle frame; 9. Rear frame; 10. Ventilation opening; 11. Controller; 12. Exhaust fan; 13. Fan; 1301. Air inlet; 1302. Return air duct; 1303. Air outlet; 14. Synchronous motor; 1401. Rotating frame; 1402. Ring gear; 1403. Gear; 15. Outer shell; 16. Dehumidification rotor; 17. Air duct; 18. Outlet duct; 19. Heater; 20. Placing groove. Detailed implementation manners

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0034] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0036] As shown in Attachments Figure 1 、 3 、4, 5 to Attachment Figure 7 shown:

[0037] Embodiment 1: This embodiment provides a rotary dehumidifier applied to an outdoor electrical cabinet, which includes a housing 1, a dehumidification mechanism, a regeneration mechanism, and a controller 11; the dehumidification mechanism includes a middle frame 8 disposed inside the housing 1, a placement groove 20 is provided on the middle frame 8, a dehumidification rotor 16 is movably disposed in the placement groove 20, a ventilation port 10 is provided on the middle frame 8 at the bottom of the placement groove 20, a cover plate 3 is installed at the front end of the housing 1, and an exhaust fan 12 is provided between the cover plate 3 at the front end of the dehumidification rotor 16 and the middle frame 8, and a dry air outlet 5 is provided on the cover plate 3 in front of the exhaust fan 12; the regeneration mechanism includes a synchronous motor 14 disposed at the input end of the dehumidification rotor 16, a housing 15 is installed on the middle frame 8 on one side of the periphery of the dehumidification rotor 16, a heater 19 is provided inside the housing 15 at the front end of the dehumidification rotor 16, a blower 13 is fixedly installed at the air inlet of the housing 15 through a duct 17, and an air outlet pipe 18 is fixedly installed at the rear end of the housing 15.

[0038] During use, the device is embedded and installed on the door or the housing of the outdoor electrical cabinet, so that the cover plate 3 is located inside the cabinet and the housing 1 is located outside the cabinet, and power is taken from the AC220V terminal inside the cabinet.

[0039] After the device is powered on, the controller 11 starts to work first, real-time detects the temperature and humidity inside the cabinet and the temperature and humidity of the external environment, executes the program function logic, and automatically controls the start and stop of related functions.

[0040] When the dehumidification function of the device is started, the exhaust fan 12, the blower 13, the synchronous motor 14, and the heater 19 are started; the exhaust fan 12 will blow the air between the cover plate 3 and the middle frame 8 into the cabinet, forming a negative pressure, and then using the negative pressure to suck the humid air inside the cabinet into the device. The humid air will enter the device at the rear end of the middle frame 8 through the ventilation port 10, and then be sucked by the exhaust fan 12 between the cover plate 3 and the middle frame 8 through the dehumidification rotor 16. The dehumidification rotor 16 is made of a porous structural material, and will adsorb the moisture in the air when the humid air passes through, making it dry, so that the air passing through the dehumidification rotor 16 becomes dry, and then the dry air is discharged into the cabinet through the exhaust fan 12, and the dehumidification work of the air inside the cabinet is completed in a cycle;

[0041] When the dehumidification rotor 16 performs the adsorption dehumidification work for a long time, the subsequent dehumidification efficiency will be affected because the porous structure is filled with moisture. During the process of the dehumidification rotor 16 performing the adsorption dehumidification work, the synchronous motor 14 will continuously drive the dehumidification rotor 16 to rotate. The fan 13 will suck a part of the dry air dehumidified by the dehumidification rotor 16 into the body, and convey the dry air to the housing 15 through the air duct 17. The housing 15 is sleeved on one side of the dehumidification rotor 16 and shields a part of the dehumidification rotor 16, so that the dehumidification rotor 16 is divided into two parts according to its function. The part covered by the housing 15 is the regeneration area, and the other part is the normal dehumidification area. The heater 19 will heat the dry air conveyed by the fan 13 into the housing 15, and then evaporate the moisture in the dehumidification rotor 16 in the regeneration area through the hot air, and then take away the evaporated moisture through the dehumidification rotor 16 and discharge it into the outside air through the air outlet pipe 18. And because the synchronous motor 14 always drives the dehumidification rotor 16 to rotate, a part of the dehumidification rotor 16 after dehumidification and regeneration is moved out of the regeneration area and returns to the normal dehumidification area to perform normal dehumidification work, and a part of the dehumidification rotor 16 to be regenerated subsequently is moved into the regeneration area to continue the drying and regeneration work. When the humidity inside the box reaches the required level, the work will stop immediately to meet the requirements.

[0042] As shown in the attached Figure 1 、 3 、4, 5 and the attached Figure 7 as shown:

[0043] Embodiment 2: This embodiment provides a rotary dehumidifier applied to an outdoor electrical cabinet, including a housing 1, a dehumidification mechanism, a regeneration mechanism and a controller 11; the dehumidification mechanism includes a middle frame 8 arranged inside the housing 1, a placement groove 20 is arranged on the middle frame 8, a dehumidification rotor 16 is movably arranged in the placement groove 20, a ventilation port 10 is arranged on the middle frame 8 at the bottom of the placement groove 20, a cover plate 3 is installed at the front end of the housing 1, and an exhaust fan 12 is arranged between the cover plate 3 at the front end of the dehumidification rotor 16 and the middle frame 8, and a dry air outlet 5 is arranged on the cover plate 3 at the front end of the exhaust fan 12; the regeneration mechanism includes a synchronous motor 14 arranged at the input end of the dehumidification rotor 16, a housing 15 is installed on the middle frame 8 on one side of the periphery of the dehumidification rotor 16, a heater 19 is arranged inside the housing 15 at the front end of the dehumidification rotor 16, a fan 13 is fixedly installed at the air inlet of the housing 15 through the air duct 17, and an air outlet pipe 18 is fixedly installed at the rear end of the housing 15.

[0044] As shown in the attached Figure 1 and the attached Figure 5 as shown:

[0045] Specifically, a humid air inlet 6 is arranged on the cover plate 3 at the front end of the ventilation port 10, a filter layer 602 is movably arranged in the humid air inlet 6, and a filter screen 601 is movably arranged in the humid air inlet 6 at the front end of the filter layer 602.

[0046] As shown in the attached Figure 2 , 5 and the attached Figure 6 as follows:

[0047] Specifically, a wet air outlet 7 is fixedly installed at the rear end of the housing 1, and the wet air outlet 7 is communicated with the air outlet pipe 18.

[0048] As shown in the attached Figure 1 and the attached Figure 3 as follows:

[0049] Specifically, the controller 11 is arranged on the middle frame 8 at the top of the exhaust fan 12, and a wiring port 4 is arranged on the cover plate 3 outside the controller 11.

[0050] As can be seen from the above, when the exhaust fan 12 works, the wet air in the cabinet will enter the device through the wet air inlet 6, and then enter the rear end of the middle frame 8 through the ventilation port 10 for dehumidification. During the process of the wet air passing through the wet air inlet 6, the filter screen 601 will filter the large particle impurities in the air, and the filter layer 602 will filter the small particle impurities in the air, avoiding the direct entry of the air into the device and affecting the service life of the device structure. Moreover, the filter screen 601 and the filter layer 602 adopt a detachable structure, which is convenient for personnel to remove, replace and maintain;

[0051] The wet air processed by the regeneration mechanism will move to the wet air outlet 7 through the air outlet pipe 18, and then be discharged to the external air through the wet air outlet 7. During the process, the discharge direction of the wet air will be changed so that it is discharged downward, avoiding the occurrence of backflow after discharge or the entry of external air impurities;

[0052] The controller 11 is connected to the AC220V terminal in the cabinet through the wiring port 4, and is electrically connected to the exhaust fan 12, the blower 13, and the synchronous motor 14. It takes power from the AC220V terminal in the cabinet to supply power to the device, collects the temperature and humidity inside the cabinet and the temperature and humidity of the external environment, and automatically controls the start and stop of the device functions according to the preset execution logic and the preset value parameters.

[0053] As shown in the attached Figure 1 , 3 , 4, 5 and the attached Figure 7 as follows:

[0054] Embodiment 3: This embodiment provides a rotary dehumidifier applied to an outdoor electrical cabinet, which includes a housing 1, a dehumidification mechanism, a regeneration mechanism, and a controller 11; the dehumidification mechanism includes a middle frame 8 disposed inside the housing 1, a placement groove 20 is provided on the middle frame 8, a dehumidification rotor 16 is movably disposed in the placement groove 20, a ventilation opening 10 is provided on the middle frame 8 at the bottom of the placement groove 20, a cover plate 3 is installed at the front end of the housing 1, an exhaust fan 12 is provided between the cover plate 3 at the front end of the dehumidification rotor 16 and the middle frame 8, and a dry air outlet 5 is provided on the cover plate 3 at the front end of the exhaust fan 12; the regeneration mechanism includes a synchronous motor 14 disposed at the input end of the dehumidification rotor 16, a housing 15 is installed on the middle frame 8 on one side of the periphery of the dehumidification rotor 16, a heater 19 is provided inside the housing 15 at the front end of the dehumidification rotor 16, a blower 13 is fixedly installed at the air inlet of the housing 15 through an air duct 17, and an air outlet pipe 18 is fixedly installed at the rear end of the housing 15.

[0055] As shown in the attached Figure 1 and attached Figure 5 figures:

[0056] Specifically, a humid air inlet 6 is provided on the cover plate 3 at the front end of the ventilation opening 10, a filter layer 602 is movably disposed in the humid air inlet 6, and a filter screen 601 is movably disposed in the humid air inlet 6 at the front end of the filter layer 602.

[0057] As shown in the attached Figure 1 , 2 , 3 and attached Figure 4 figures:

[0058] Specifically, a mounting plate 2 is fixedly installed on the periphery of the housing 1.

[0059] As shown in the attached Figure 4 , 5 and attached Figure 6 figures:

[0060] Specifically, an air outlet 1303 is provided on the middle frame 8 around the blower 13, an air inlet 1301 is provided on the middle frame 8 at the top of the ventilation opening 10, and a return air duct 1302 is provided between the air inlet 1301 at the rear end of the middle frame 8 and the air outlet 1303.

[0061] As shown in the attached Figure 4 and attached Figure 8 figures:

[0062] Specifically, a rotating frame 1401 is provided at the rear end of the dehumidification rotor 16, a toothed ring 1402 is fixedly installed on the rotating frame 1401 on the periphery of the dehumidification rotor 16, a gear 1403 is provided at the output end of the synchronous motor 14, and the gear 1403 meshes with the toothed ring 1402.

[0063] As shown in the attached Figure 2 , 5 and attachedFigure 6 As shown in:

[0064] Specifically, a wet air outlet 7 is fixedly installed at the rear end of the housing 1, and the wet air outlet 7 is communicated with the air outlet pipe 18.

[0065] As shown in the appendix Figure 1 and the appendix Figure 3 As shown in:

[0066] Specifically, the controller 11 is arranged on the middle frame 8 at the top of the exhaust fan 12, and a wiring port 4 is arranged on the cover plate 3 outside the controller 11.

[0067] As shown in the appendix Figure 5 and the appendix Figure 6 As shown in:

[0068] Specifically, a rear frame 9 is arranged in the housing 1 at the rear end of the middle frame 8.

[0069] As can be seen from the above, when the device is installed and used, first preset an installation groove on the cabinet door, then insert the housing 1 into the installation groove from inside the cabinet to the outside, and connect and fix it after the mounting plate 2 fits with the cabinet door, then the installation work of the device can be completed. The cabinet door is embedded for installation, reducing the redundancy of equipment in the cabinet, suitable for the structural characteristics of the electrical cabinet, and can be used for small outdoor electrical cabinets;

[0070] The wet air sucked into the device by the exhaust fan 12 under negative pressure will enter the rear frame 9 through the ventilation port 10. A space for the wet air to flow will be formed between the rear frame 9 and the middle frame 8 for the wet air to contact the dehumidification rotor 16 for dehumidification work; when the fan 13 works to suck the processed dry air, the dry air will enter the rear frame 9 through the air inlet 1301, then move to the air outlet 1303 through the return air pipe 1302, and finally be sucked into the body by the fan 13 through the air outlet 1303 for the drying and regeneration work of the dehumidification rotor 16. The return air pipe 1302 is located in the rear frame 9; when the synchronous motor 14 works, it will drive the gear 1403 to rotate, and the gear 1403 will drive the toothed ring 1402 and the dehumidification rotor 16 to rotate by meshing with the toothed ring 1402. The rotational accuracy of the dehumidification rotor 16 is improved through the meshing and speed reduction transmission of the gear 1403 and the toothed ring 1402, and the synchronous motor 14 is located on one side of the dehumidification rotor 16; through the above measures, the overall thickness and occupied area of the device are greatly reduced, the size is small, it is convenient to be installed on a small electrical cabinet, and the applicable range of the device is increased.

[0071] Four control strategies are designed for the application of the outdoor electrical cabinet in this application: dehumidification, air-conditioning linkage, heating, and ventilation;

[0072] The control strategies for the dehumidification and air-conditioning linkage functions are as shown in the appendix Figure 9 As shown in: Among them, "start dehumidification setting value" and "stop dehumidification setting value" are preset parameters, and the controller 11 can modify the parameters;

[0073] The air conditioner linkage is an auxiliary function for dehumidification. When used on the electrical cabinet equipped with an industrial air conditioner, the air conditioner linkage function is enabled to make the rotary dehumidifier work in coordination with the industrial air conditioner;

[0074] Logical description: When the humidity value inside the cabinet is higher than the dehumidification start set value, dehumidification is started. At the same time, if the air conditioner linkage function is enabled, the air conditioner operation is turned off; when the humidity value inside the cabinet drops below the dehumidification stop set value, dehumidification is stopped and the air conditioner operation is restored (if the air conditioner operation has been turned off);

[0075] The control strategy of the heating function is as shown in the appendix Figure 10 as follows: Among them, the "heating start set value" and the "heating stop set value" are preset parameters, and the controller 11 can modify the parameters;

[0076] The prerequisite for starting heating is that the heating function is enabled and the air conditioner linkage function is disabled;

[0077] Logical description: There are two trigger conditions for starting heating, and either one can start the heating function: First, the temperature difference between inside and outside is lower than the heating start set value and the internal temperature is lower than 40°C; Second, the internal temperature is not higher than 0°C; During the heating operation, there are two trigger conditions for stopping heating: First, the temperature difference between inside and outside is higher than the heating stop set value and the internal temperature is not lower than 0°C; Second, the internal temperature is higher than 42°C;

[0078] The control strategy of the ventilation function is as shown in the appendix Figure 11 as follows: The prerequisite for starting heating is that the ventilation function is enabled and the air conditioner linkage function is disabled;

[0079] Logical description: The trigger condition for starting ventilation is: the internal temperature exceeds 42°C, the external temperature is lower than 37°C, and the external humidity value is lower than the dehumidification start set value; the condition for stopping ventilation is: the internal temperature is lower than 40°C, or the external temperature is higher than 39°C, or the external humidity is higher than the dehumidification start set value;

[0080] In the above, enabling means that a certain function is put into use and will be started when the start condition is met, and disabling means that the function is withdrawn from use and will not work even if the start condition is met. By manually operating the controller 11 to enable or disable a certain function, the internal temperature and humidity environment of the outdoor electrical cabinet can be optimized.

[0081] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as being integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0082] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to implementing the present invention).

[0083] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A rotary dehumidifier used in outdoor electrical cabinets, characterized in that: It comprises a housing (1), a dehumidification mechanism, a regeneration mechanism and a controller (11); The dehumidification mechanism comprises a middle frame (8) arranged in the shell (1), the middle frame (8) being provided with a placement groove (20), a dehumidification wheel (16) being movably arranged in the placement groove (20), a vent (10) being arranged on the middle frame (8) at the bottom of the placement groove (20), a cover plate (3) being installed at the front end of the shell (1), an exhaust fan (12) being arranged between the cover plate (3) at the front end of the dehumidification wheel (16) and the middle frame (8), and a dry air outlet (5) being arranged on the cover plate (3) at the front end of the exhaust fan (12); The regeneration mechanism comprises a synchronous motor (14) arranged at the input end of the dehumidification wheel (16); a shell (15) is installed on a middle frame (8) on one side of the outer periphery of the dehumidification wheel (16); a heater (19) is arranged in the shell (15) at the front end of the dehumidification wheel (16); a fan (13) is fixedly installed at the air inlet of the shell (15) through an air duct (17); and an air outlet pipe (18) is fixedly installed at the rear end of the shell (15).

2. A rotary dehumidifier for outdoor electrical cabinets according to claim 1, characterized in that: A moist air inlet (6) is provided on the cover plate (3) at the front end of the vent (10), a filter layer (602) is movably provided in the moist air inlet (6), and a filter screen (601) is movably provided in the moist air inlet (6) at the front end of the filter layer (602).

3. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: A mounting plate (2) is fixedly mounted on the periphery of the shell (1).

4. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: An air outlet (1303) is arranged on the middle frame (8) outside the fan (13), an air inlet (1301) is arranged on the middle frame (8) at the top of the vent (10), and a return air duct (1302) is arranged between the air inlet (1301) and the air outlet (1303) at the rear end of the middle frame (8).

5. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: A rotating frame (1401) is provided at the rear end of the dehumidification wheel (16), a gear ring (1402) is fixedly mounted on the rotating frame (1401) outside the dehumidification wheel (16), and a gear (1403) is provided at the output end of the synchronous motor (14), and the gear (1403) is meshed with the gear ring (1402).

6. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: A moist air outlet (7) is fixedly mounted at the rear end of the housing (1), and the moist air outlet (7) is connected to an air outlet pipe (18).

7. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: The controller (11) is arranged on a middle frame (8) at the top of the exhaust fan (12), and a wiring port (4) is arranged on a cover plate (3) outside the controller (11).

8. The rotary dehumidifier used in an outdoor electrical cabinet according to claim 1, characterized in that: A rear frame (9) is arranged in the housing (1) at the rear end of the middle frame (8).

Images