Control cabinet with air exchange device

Abstract

The utility model discloses a control cabinet with an air exchange device, which relates to the technical field of control cabinets and comprises a cabinet body, a cabinet door is rotatably arranged on the front surface of the cabinet body, an air outlet frame is mounted at the top end of the cabinet body close to the left side, and an air inlet frame is mounted at the top end of the cabinet body close to the right side. A filtering frame is fixed to the outer wall of the right side of the cabinet body, and multiple sets of drying cylinders extending into the filtering frame are arranged on the outer wall of the filtering frame. According to the utility model, dust and moisture in the air are removed by using the filter frame and the drying cylinder, short circuit and open circuit caused by the fact that the dust and moisture are conveyed into the cabinet body and attached to components are avoided, and the dust and the moisture are discharged into the cabinet body through the square pipe, so that the dust and the moisture are discharged in a large area, and the components can be efficiently cooled. And meanwhile, internal hot air is exhausted through the air outlet fan, so that air exchange in the cabinet body is realized, and the service life of internal components is prolonged in a disguised manner.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a control cabinet with an air exchange device. Background Art

[0002] At present, the control cabinet is to assemble the switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. Its layout should meet the requirements of normal operation of the power system, be easy to maintain, and not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. In case of fault or abnormal operation, the circuit can be cut off or alarmed with the help of protective electrical appliances. Various parameters in operation can be displayed by measuring instruments, and certain electrical parameters can be adjusted. It can also prompt or send signals when deviating from the normal working state. It is often used in various power generation, distribution and substations.

[0003] An existing patent (authorization announcement number: CN 208782338 U) discloses a control cabinet with an air exchange device, in which a first fan and a second fan are installed inside an air exchange shell. The first fan absorbs external air into the cabinet, and the second fan discharges the hot air generated in the cabinet to form an air circulation inside the cabinet, thereby avoiding temperature accumulation inside the cabinet.

[0004] However, the above technical solution still has certain defects. The air inlet pipe and the air outlet pipe are both located on the right side of the cabinet, and the cold air transported to the inside of the cabinet also flows from right to left, causing the components on the left side of the cabinet to cool down slowly. At the same time, the fans in the air inlet pipe and the air outlet pipe work synchronously, and because the two are close to each other, the cold air entering the cabinet from the air inlet pipe will be discharged through the air outlet pipe due to the atmospheric pressure, and the air discharged from the air outlet pipe will enter the cabinet again from the air inlet pipe, thus forming a closed O-shaped trajectory, resulting in poor ventilation effect in the cabinet. For this reason, a control cabinet with an air exchange device is proposed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a control cabinet with an air exchange device to solve the technical problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a control cabinet with an air exchange device, comprising a cabinet body, a cabinet door is rotatably provided on the front surface of the cabinet body, an air outlet frame is installed at the top of the cabinet body near the left position, an air inlet frame is installed at the top of the cabinet body near the right position, a filter frame is fixed to the right outer wall of the cabinet body, a plurality of groups of drying cylinders extending into the filter frame are provided on the outer wall of the filter frame, a ventilation net is fixed on the left and right curved outer walls of the drying cylinder, a partition is fixed longitudinally in the drying cylinder, the left and right inner walls of the cabinet body are inlaid with mouth-shaped pipes, the outer walls of the mouth-shaped pipes are connected to several groups of exhaust pipes, a pair of blind holes are opened at the ends of the exhaust pipes near the edge positions, a base rod extending to the outside of the end of the exhaust pipe is slidably provided in the blind hole, a blocking disk is fixed on the end of the base rod outside the exhaust pipe, and a spring is fixed between the other end of the base rod and the blind hole.

[0007] As a preferred technical solution for a control cabinet with an air exchange device of the utility model, an air blower is installed in the air outlet frame, an air outlet duct is connected to the top of the air outlet frame, and an air collecting hood connected to the bottom of the air outlet frame is provided at the upper part of the cabinet.

[0008] As a preferred technical solution for a control cabinet with an air exchange device of the utility model, an air inlet fan is installed in the air inlet frame, the top of the air inlet frame is provided with an air inlet duct connected to the top of the filter frame, and the top of the air inlet frame is provided with a branch pipe extending into the cabinet body and connected to two groups of mouth pipes.

[0009] As a preferred technical solution for a control cabinet with an air exchange device of the utility model, multiple groups of the drying cylinders are rotatably connected to the filter frames, a transmission shaft is fixed to the end of each group of the filter frames, a belt is sleeved on the outer wall of the transmission shaft, the transmission shaft at the highest point extends out of the filter frame and is connected to a turntable, and the diameter of the transmission shaft gradually decreases from top to bottom.

[0010] As a preferred technical solution of a control cabinet with an air exchange device of the utility model, the partition divides the space inside the drying cylinder into two, and the two regional spaces inside the drying cylinder are filled with silica gel desiccant.

[0011] As a preferred technical solution of a control cabinet with an air exchange device of the utility model, a filter screen is provided at the bottom end of the filter frame, and the filter screen is fixed to the bottom end of the filter frame by bolts.

[0012] As a preferred technical solution of a control cabinet with an air exchange device of the utility model, a notch is provided at the contact position between the filter frame and the drying cylinder, and a rubber sealing strip is fixed at the contact position between the inner wall of the notch and the outer wall of the drying cylinder.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] The utility model utilizes a filter frame and a drying cylinder to remove dust and moisture in the air, thereby preventing the dust and moisture from being transported into the cabinet and attached to components and causing short circuits. At the same time, the dust and moisture are discharged into the cabinet through a square pipe, so that the dust and moisture are discharged over a large area and the components can be cooled and dissipated efficiently. At the same time, the internal hot air is discharged through the air outlet fan, thereby realizing air exchange in the cabinet and prolonging the service life of the internal components in disguised form. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a bottom-up stereogram of the present utility model;

[0017] Figure 3 It is a structural diagram of the air outlet frame and the air inlet frame of the utility model;

[0018] Figure 4 This is a rear structural diagram of the air inlet frame of the utility model;

[0019] Figure 5 It is a front cutaway view of the air outlet frame and the air inlet frame of the utility model;

[0020] Figure 6 It is a rear cutaway view of the filter frame of the utility model;

[0021] Figure 7 This is a cutaway structural diagram of the drying cylinder of the utility model;

[0022] Figure 8 It is a cutaway view of the exhaust duct of the utility model.

[0023] In the figure: 100, cabinet;

[0024] 110. Cabinet door; 120. Air outlet frame; 121. Air outlet duct; 122. Air collecting hood; 123. Air outlet fan; 130. Air inlet frame; 131. Air inlet duct; 132. Branch pipe; 133. Air inlet fan; 140. Filter frame; 141. Filter net; 142. Drying cylinder; 143. Ventilation net; 144. Partition; 145. Belt; 146. Drive shaft; 150. Square pipe; 151. Exhaust duct; 152. Blind hole; 153. Spring; 154. Blocking plate; 155. Base rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0026] The following describes an embodiment of the utility model based on its overall structure.

[0027] A control cabinet with an air exchange device, such as Figures 1 to 8 As shown, the cabinet 100 includes a cabinet 100, a cabinet door 110 is rotatably provided on the front surface of the cabinet 100, an air outlet frame 120 is installed at the top of the cabinet 100 near the left position, an air inlet frame 130 is installed at the top of the cabinet 100 near the right position, a filter frame 140 is fixed to the right outer wall of the cabinet 100, and a plurality of groups of drying cylinders 142 extending inside the filter frame 140 are provided on the outer wall of the filter frame 140, and a ventilation net 143 is fixed to the left and right curved outer walls of the drying cylinder 142, and the drying cylinder 142 is provided with a ventilation net 143. A partition 144 is fixed longitudinally, and a square tube 150 is inlaid on the left and right inner walls of the cabinet 100. The outer wall of the square tube 150 is connected to a plurality of exhaust ducts 151. A pair of blind holes 152 are provided at the ends of the exhaust ducts 151 near the edge. A base rod 155 extending to the outside of the ends of the exhaust ducts 151 is slidably provided in the blind holes 152. A blocking plate 154 is fixed to the end of the base rod 155 outside the exhaust duct 151, and a spring 153 is fixed between the other end of the base rod 155 and the blind hole 152.

[0028] An air outlet fan 123 is installed in the air outlet frame 120, and an air outlet pipe 121 is connected to the top of the air outlet frame 120. An air collecting cover 122 connected to the bottom of the air outlet frame 120 is provided at the upper position of the cabinet 100;

[0029] An air inlet fan 133 is installed in the air inlet frame 130 . An air inlet pipe 131 connected to the top of the filter frame 140 is provided at the top of the air inlet frame 130 . A branch pipe 132 extending into the cabinet 100 and connected to the two groups of square pipes 150 is provided at the top of the air inlet frame 130 .

[0030] When the components inside the cabinet 100 are working, the air inlet fan 133 works to allow external air to enter from the bottom of the filter frame 140, pass through the filter screen 141 to block dirt, and then pass through the silica gel desiccant inside the drying cylinder 142 to remove moisture in the air to avoid affecting the internal components, further improving the service life of the components, and finally pass through the air inlet frame 130 to be transported to the mouth pipe 150 and the exhaust pipe 151, and the air in the exhaust pipe 151 squeezes the plugging plate 154 to move outward, while driving the base rod 155 to move along the blind hole 152 and stretching the spring 153, so that the air is ejected in a ring shape from the gap between the exhaust pipe 151 and the plugging plate 154, and can be diffused into the cabinet 100 over a large area to achieve the purpose of efficient heat dissipation. When the spring 153 contracts, the plugging plate 154 is driven to recover through the base rod 155, and the end of the exhaust pipe 151 is sealed to prevent dirt such as dust from entering, thereby ensuring smooth air flow inside.

[0031] At the same time, the air outlet fan 123 works synchronously, and because hot air is lighter than cold air, the hot air enters the air outlet frame 120 through the air collecting hood 122, and is finally discharged to the outside through the air outlet pipe 121, thereby finally completing the air exchange inside and outside the cabinet 100, which can ensure that the temperature inside the cabinet 100 is in a suitable state, ensuring that the components can work normally.

[0032] Please refer to Figure 4 and Figure 6 , multiple groups of drying cylinders 142 are rotatably connected to the filter frame 140, and a transmission shaft 146 is fixed to the end of each group of filter frames 140. The outer wall of the transmission shaft 146 is sleeved with a belt 145. The transmission shaft 146 at the highest point extends out of the filter frame 140 and is connected to a turntable. The diameter of the transmission shaft 146 gradually decreases from top to bottom;

[0033] The partition 144 divides the space inside the drying cylinder 142 into two regions, and the two regions inside the drying cylinder 142 are both filled with silica gel desiccant.

[0034] By holding the turntable and applying external force to rotate it to a position of 180 degrees, several groups of drying cylinders 142 can be driven to rotate synchronously, and half of the drying cylinders 142 located inside the filter frame 140 can be swapped with those outside, so that the silica gel desiccant that has absorbed moisture can be dried on the outside. After a period of time, the drying cylinders 142 can be rotated again, thereby achieving the purpose of replacing the desiccant without manual disassembly.

[0035] Please refer to Figure 2 A filter screen 141 is disposed at the bottom end of the filter frame 140 , and the filter screen 141 is fixed to the bottom end of the filter frame 140 by bolts.

[0036] The filter 141 can be used to block dirt in the air or near the ground to prevent it from entering the filter frame 140, and it is convenient to disassemble and replace the aged filter.

[0037] Please refer to Figure 1 and Figure 2 A notch is provided at the contact position between the filter frame 140 and the drying cylinder 142 , and a rubber sealing strip is fixed at the contact position between the inner wall of the notch and the outer wall of the drying cylinder 142 .

[0038] The rubber sealing strip is used to increase the friction coefficient between the drying cylinder 142 so that it does not rotate freely and prevents outside air from entering through the gap between the two.

[0039] During use, when the components inside the cabinet 100 are working, the air intake fan 133 works to allow external air to enter from the bottom of the filter frame 140, pass through the filter screen 141 to block dirt, and then pass through the silica gel desiccant inside the drying cylinder 142 to remove moisture in the air to avoid affecting the internal components, further improving the service life of the components, and finally through the air intake frame 130 to be transported to the mouth pipe 150 and the exhaust pipe 151, and the air in the exhaust pipe 151 squeezes the plugging plate 154 to move outward, while driving the base rod 155 to move along the blind hole 152 and stretching the spring 153, so that the air is ejected in a ring shape from the gap between the exhaust pipe 151 and the plugging plate 154, and can be diffused into the cabinet 100 over a large area, achieving the purpose of efficient heat dissipation, when the spring 153 contracts, the plugging plate 154 is driven to recover through the base rod 155, and the end of the exhaust pipe 151 is sealed to prevent dirt such as dust from entering, thereby ensuring smooth air flow inside.

[0040] At the same time, the air outlet fan 123 works synchronously, and because hot air is lighter than cold air, the hot air enters the air outlet frame 120 through the air collecting hood 122, and is finally discharged to the outside through the air outlet pipe 121, thereby finally completing the air exchange inside and outside the cabinet 100, which can ensure that the temperature inside the cabinet 100 is in a suitable state and ensure that the components can work normally. The parts not involved in the device are the same as the existing technology or can be implemented by existing technology.

[0041] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A control cabinet with an air exchange device, comprising a cabinet body (100), characterized in that: The cabinet body (100) is rotatably provided with a cabinet door (110) on the front surface, an air outlet frame (120) is installed at the top of the cabinet body (100) near the left side, an air inlet frame (130) is installed at the top of the cabinet body (100) near the right side, a filter frame (140) is fixed to the right side outer wall of the cabinet body (100), the outer wall of the filter frame (140) is provided with a plurality of groups of drying cylinders (142) extending inside the filter frame (140), a ventilation net (143) is fixed to the left and right curved outer walls of the drying cylinder (142), and a partition is longitudinally fixed inside the drying cylinder (142). (144), the left and right inner walls of the cabinet (100) are inlaid with a mouth-shaped tube (150), the outer wall of the mouth-shaped tube (150) is connected to a plurality of exhaust pipes (151), a pair of blind holes (152) are opened at the ends of the exhaust pipes (151) near the edge positions, a base rod (155) is slidably provided in the blind hole (152) and extends to the outside of the end of the exhaust pipe (151), a blocking plate (154) is fixed to the end of the base rod (155) located outside the exhaust pipe (151), and a spring (153) is fixed between the other end of the base rod (155) and the blind hole (152).

2. A control cabinet with an air exchange device according to claim 1, characterized in that: An air outlet fan (123) is installed in the air outlet frame (120), the top end of the air outlet frame (120) is connected to an air outlet pipe (121), and an air collecting cover (122) connected to the bottom end of the air outlet frame (120) is provided at an upper position in the cabinet (100).

3. The control cabinet with an air exchange device according to claim 1, characterized in that: An air inlet fan (133) is installed in the air inlet frame (130), an air inlet pipe (131) connected to the top of the filter frame (140) is provided at the top of the air inlet frame (130), and a branch pipe (132) extending into the cabinet (100) and connected to the two groups of square pipes (150) is provided at the top of the air inlet frame (130).

4. The control cabinet with an air exchange device according to claim 1, characterized in that: A plurality of groups of drying cylinders (142) are rotatably connected to the filter frame (140), and a transmission shaft (146) is fixed to the end of each group of the filter frame (140). A belt (145) is sleeved on the outer wall of the transmission shaft (146). The transmission shaft (146) at the highest point extends out of the filter frame (140) and is connected to a turntable. The diameter of the transmission shaft (146) gradually decreases from top to bottom.

5. The control cabinet with an air exchange device according to claim 1, characterized in that: The partition (144) divides the space inside the drying cylinder (142) into two parts, and the two area spaces inside the drying cylinder (142) are both filled with silica gel desiccant.

6. The control cabinet with an air exchange device according to claim 1, characterized in that: A filter screen (141) is provided at the bottom end of the filter frame (140), and the filter screen (141) is fixed to the bottom end of the filter frame (140) by means of bolts.

7. The control cabinet with an air exchange device according to claim 1, characterized in that: A notch is provided at the contact position between the filter frame (140) and the drying cylinder (142), and a rubber sealing strip is fixed at the contact position between the inner wall of the notch and the outer wall of the drying cylinder (142).

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