A heat dissipation switch cabinet

Abstract

The present invention provides a heat dissipation switch cabinet, including a shell assembly, an upper sealing door and a lower sealing door are arranged on the front surface of the shell assembly, the upper sealing door and the lower sealing door can be hinged and opened relative to the shell assembly, a partition is arranged inside the shell assembly, the partition is arranged at the connection between the upper sealing door and the lower sealing door, an electrical component installation area is formed above the partition, a filter chamber is formed below the partition, the filter chamber is connected to the external space of the shell assembly through an air inlet device, a filter device is arranged in the filter chamber, the filter device is used to filter the gas entering the filter chamber, a fourth air inlet is arranged on the partition, the fourth air inlet is used to connect the filter chamber with the electrical component installation area. The heat dissipation switch cabinet described in the present invention has a clever structure, solves the problems of heat dissipation and dust removal at the same time, and can accurately dissipate heat in the local area with higher temperature in the switch cabinet, reduce energy consumption, and dissipate heat reliably.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to a heat dissipation switch cabinet. Background Art

[0002] Switchgear is an electrical device whose main function is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and energy conversion in the power system. The external line of the switchgear first enters the main control switch inside the cabinet, and then enters the branch control switch. Each branch is set according to its needs.

[0003] The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system; the components in the switchgear mainly include circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various protective devices.

[0004] The Chinese patent with the authorization announcement number CN205452901U discloses a low-voltage control switch cabinet. The switch cabinet includes a cabinet body, a cabinet door, an electric meter, a circuit breaker and a grounding protector; the cabinet door is hinged on one side of the cabinet body; the cabinet body is divided into two layers, wherein the electric meter is installed on the upper layer, the circuit breaker is installed on one side of the lower layer, and the grounding protector is installed on the other side; a base for connecting to the outside world is provided at the bottom of the cabinet body; a slot is provided between the bottom of the cabinet body and the base, and the slot is used to insert a dust cover. The cabinet door of the switch cabinet is generally equipped with a door lock to fix the cabinet door.

[0005] The switch cabinet is provided with air vents at the top and sides of the base, so that air can enter the cabinet through the air vents, and then the exhaust fan accelerates the circulation of air in the cabinet to remove moisture and heat. However, fans are generally suitable for medium-power switch cabinets. For switch cabinets with lower power, fans are generally avoided and natural air cooling is selected to reduce production costs.

[0006] The existing switch cabinet has poor internal heat dissipation. When the internal circuit components continue to work, the temperature inside the switch cabinet rises. The excessively high temperature inside the switch cabinet will seriously affect the service life of the internal circuit components. Therefore, the existing switch cabinet has the problem that the service life of the circuit components inside the switch cabinet is shortened due to poor heat dissipation.

[0007] How to improve the heat dissipation performance of the switch cabinet and ensure the normal operation of the switch cabinet is the direction that technical personnel in this field have been working on. Summary of the invention

[0008] In view of this, the present invention aims to provide a heat dissipation switch cabinet to solve the problem of shortened service life of circuit components in the existing switch cabinet due to poor heat dissipation or dust, and improve the dustproof effect of the switch cabinet.

[0009] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0010] A heat dissipation switch cabinet includes a shell assembly, an upper sealing door and a lower sealing door are arranged on the front surface of the shell assembly, the upper sealing door and the lower sealing door can be hinged and opened relative to the shell assembly, a partition is arranged inside the shell assembly, the partition is arranged at the connection between the upper sealing door and the lower sealing door, an electrical component installation area is formed above the partition, and a filter chamber is formed below the partition, the filter chamber is connected to the external space of the shell assembly through an air inlet hole device, a filter device is arranged in the filter chamber, the filter device is used to filter the gas entering the filter chamber, and a fourth air inlet hole is arranged on the partition, the fourth air inlet hole is used to connect the filter chamber with the electrical component installation area.

[0011] Furthermore, an air supply device is provided on the shell assembly, and the air supply device is sealedly connected to the air inlet device at the filter chamber through an air supply pipeline, and is used to control the delivery of heat dissipation gas to the filter chamber. A through hole is provided on the shell assembly for the normal circulation of airflow inside and outside the shell assembly.

[0012] Furthermore, an electromagnetic control valve is arranged on the air supply device and / or the air supply pipeline, and the electromagnetic control valve is used to control the on-off of the air supply device and / or the air supply pipeline.

[0013] Furthermore, the shell assembly includes a bottom plate, a back plate, a left plate, a right plate and a top plate, the bottom plate and the top plate are arranged at the upper and lower ends of the back plate, the left plate and the right plate are arranged at the left and right ends of the back plate, the left and right ends of the partition are respectively fixedly connected to the left and right plates, the air supply device is arranged on the back plate, and a support seat is arranged on the lower surface of the bottom plate, the support seat is used to form a gap between the bottom plate and the ground, the air inlet hole device includes a first air inlet hole, a second air inlet hole and a third air inlet hole, the first air inlet hole is arranged on the bottom plate, the second air inlet hole is arranged on the left plate, and the third air inlet hole is arranged on the right plate, and the areas where the first air inlet hole, the second air inlet hole and the third air inlet hole are located are all arranged below the partition and covered by the air supply duct.

[0014] Furthermore, the air outlet duct of the solenoid control valve includes a first passage, a second passage, and a third passage. The first passage is connected to the first air supply duct, and the first air supply duct is arranged on the lower surface of the base plate. The second passage is connected to the second air supply duct, and the second air supply duct is arranged on the left side of the left side plate. The third passage is connected to the third air supply duct, and the third air supply duct is arranged on the right side of the right side plate.

[0015] Furthermore, the air supply pipeline includes an air supply main pipe and air supply branch pipes, and a plurality of air supply branch pipes are connected to each of the air supply main pipes.

[0016] Furthermore, the through openings are arranged on the bottom plate, and the ratio of the number of the through openings to the number of the fourth air inlet holes on the partition plate is not greater than 0.3.

[0017] Furthermore, the filter device can be pulled out and placed in the filter chamber, and the filter device includes a horizontal filter, a first vertical filter and a second vertical filter, the first vertical filter and the second vertical filter are arranged on both sides of the horizontal filter, the horizontal filter completely covers the area where the first air inlet is located, and the first filter hole is arranged on the horizontal filter, the first vertical filter completely covers the area where the second air inlet is located, and the second filter hole is arranged on the first vertical filter, the second vertical filter completely covers the area where the third air inlet is located, and the third filter hole is arranged on the second vertical filter.

[0018] Furthermore, the filtering device also includes a third vertical filter, a top filter is arranged above the horizontal filter, a fifth filter hole is arranged on the top filter, at least two third vertical filters are arranged, a multiple filter part is arranged between the third vertical filter and the first vertical filter, and / or between the third vertical filter and the second vertical filter, and / or between two adjacent third vertical filters, the multiple filter part is used to filter the heat dissipation airflow entering between the horizontal filter and the top filter for multiple times before entering the electrical component installation area through the fifth filter hole.

[0019] Furthermore, the multiple filter parts include a first filter part and a second filter part, a first connecting plate and a second connecting plate are arranged between the first filter part and the second filter part, the second connecting plate is arranged at the lower ends of the first filter part and the second filter part, there is a gap between the second connecting plate and the horizontal filter screen, the first connecting plate is arranged above the second connecting plate, and a guide plate is arranged on the side of the second filter part away from the first filter part, wherein the first filter part, the second filter part, the first connecting plate and the second connecting plate are all provided with filter holes, the guide plate is a flat plate structure without holes and arranged obliquely, and the fifth filter hole is arranged on the top filter screen above the guide plate.

[0020] Compared with the prior art, the heat dissipation switch cabinet of the present invention has the following advantages:

[0021] (1) The heat dissipation switch cabinet of the present invention has an ingenious structure. Under the condition that the cabinet body of the switch cabinet is relatively well sealed, it can fully dissipate the heat of the components in the cabinet body. At the same time, it can also ensure the dust removal effect while dissipating the heat, thereby solving the problems of heat dissipation and dust removal at the same time.

[0022] (2) The heat dissipation switch cabinet described in the present invention is provided with an air supply device that can adjust the working power, thereby adjusting the air flow to the filter chamber to ensure the heat dissipation effect.

[0023] (3) The heat dissipation switch cabinet described in the present invention has an air supply device arranged on the rear plate, and the air supply device respectively delivers the heat dissipation air volume into the filter chamber from the left side, right side and bottom of the shell assembly through the air supply pipeline. This arrangement is convenient for adjusting the air supply volume on the one hand, and can also change the air supply volume in the local area on the other hand, so as to accurately dissipate heat in the local area with higher temperature, reduce energy consumption, and ensure reliable heat dissipation.

[0024] (4) The heat dissipation switch cabinet described in the present invention has a compact structure and ensures the control accuracy of the heat dissipation air volume and the reliability of flow regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a front view structural schematic diagram of a switch cabinet according to an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the rear view structure of the switch cabinet according to an embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the side structure of the switch cabinet according to an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the side structure of the switch cabinet according to the embodiment of the present invention from a second viewing angle;

[0030] Figure 5 It is a schematic diagram of the upper sealing door and the lower sealing door of the switch cabinet according to an embodiment of the present invention in an open state;

[0031] Figure 6 This is a schematic diagram of the front view structure of the switch cabinet according to an embodiment of the present invention after the upper sealing door and the lower sealing door are removed;

[0032] Figure 7 for Figure 6 Side view of the middle structure;

[0033] Figure 8 for Figure 7 A partial enlarged schematic diagram of the middle B part;

[0034] Fig. 9 for Figure 6 A schematic diagram of the side view of the middle structure after removing the air supply device;

[0035] Fig.10 for Fig. 9 A schematic diagram of the side view of the middle structure from a second viewing angle;

[0036] Fig.11 for Fig. 9 A schematic diagram of the side view of the middle structure from the third perspective;

[0037] Fig.12 for Fig.11 A partial enlarged schematic diagram of the middle C part;

[0038] Fig.13 It is a front view structural schematic diagram of the filtering device according to an embodiment of the present invention;

[0039] Fig.14 It is a schematic side view of the structure of the filtering device according to an embodiment of the present invention;

[0040] Fig.15 A schematic diagram of the side structure of the filtering device according to an embodiment of the present invention from a second viewing angle;

[0041] Description of reference numerals:

[0042] Switch cabinet 100; housing assembly 1; bottom plate 101; first air inlet 1011; rear plate 102; air outlet 1021; baffle 1022; left side plate 103; second air inlet 1031; right side plate 104; third air inlet 1041; top plate 105; upper sealing door 2; display 201; indicator light 202; control module 203; handle 204; door lock 205; lower sealing door 3; support base 4; smoke alarm 5; first air supply pipeline 6; first air supply main pipe 601; first air supply branch pipe 602; second air supply pipeline 7; second air supply main pipe 701; second air supply branch pipe 702; third air supply pipeline 8; third air supply main pipe 801; third air supply branch pipe 802; air supply device 9; electromagnetic control valve 10; first passage 1001; second passage 1002; third passage 1003; through-hole 11, partition 12; fourth air inlet 1201; filter chamber 13; temperature sensor 14 ; Filter device 15; horizontal filter 1501; first filter hole 15011; first vertical filter 1502; second filter hole 15021; second vertical filter 1503; third filter hole 15031; third vertical filter 1504; fourth filter hole 15041; top filter 1505; fifth filter hole 15051; multiple filter part 1506; first filter part 15061; sixth filter hole 150611; second filter Part 15062; seventh filter hole 150621; first connecting plate 15063; eighth filter hole 150631; second connecting plate 15064; ninth filter hole 150641; guide plate 15065; sliding plate 1507; heat storage and heat exchange device 16; first heat storage and heat exchange unit 1601; second heat storage and heat exchange unit 1602; third heat storage and heat exchange unit 1603; fourth heat storage and heat exchange unit 1604, electrical component installation area 17. DETAILED DESCRIPTION

[0043] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0044] It should be noted that all the terms used in the present invention for directional and positional indications, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "low", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection status between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0045] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Example 1

[0048] like Figures 1 to 15 As shown, the present invention discloses a heat dissipation switch cabinet, including a shell assembly 1, an upper sealing door 2 and a lower sealing door 3 are arranged on the front surface of the shell assembly 1, the upper sealing door 2 and the lower sealing door 3 can be hinged and opened relative to the shell assembly 1, a partition 12 is arranged inside the shell assembly 1, the partition 12 is arranged at the connection between the upper sealing door 2 and the lower sealing door 3, an electrical component installation area 17 is formed above the partition 12, and a filter chamber 13 is formed below the partition 12, the filter chamber 13 is connected with the external space of the shell assembly 1 through an air inlet hole device, a filter device 15 is arranged in the filter chamber 13, the filter device 15 is used for filtering the gas entering the filter chamber 13, and a fourth air inlet hole 1201 is arranged on the partition 12, and the fourth air inlet hole 1201 is used for connecting the filter chamber 13 with the electrical component installation area 17.

[0049] Since there are many electrical components inside the switch cabinet 100 and the use environment is relatively bad, in order to dissipate heat, the existing switch cabinet generally leaves a gap at the cabinet door joint when assembling the cabinet, or sets a heat dissipation hole on the shell assembly of the switch cabinet for air intake and heat dissipation. However, due to the relatively bad use environment of the switch cabinet, dust can easily enter the cabinet of the switch cabinet and accumulate on the electrical components in the cabinet. Since the components in the cabinet are arranged closely, when the dust accumulates to a certain amount, it will generate a certain amount of static electricity, or seriously affect the heat dissipation effect of the electrical components themselves.

[0050] As an example of the present invention, a partition 12 is arranged inside the shell assembly 1, and an electrical component installation area 17 is formed above the partition 12 for assembling and placing electrical components. An upper sealing door 2 is arranged on the front surface of the electrical component installation area 17 for sealing the electrical component installation area 17. A filter chamber 13 is formed below the partition 12. The heat dissipation air entering the shell assembly 1 is filtered by a filter device 15 arranged in the filter chamber 13. A lower sealing door 3 is arranged on the front surface of the filter chamber 13 for sealing the filter chamber 13. The filtered heat dissipation gas enters the electrical component installation area 17 through the fourth air inlet 1201 on the partition 12, so as to prevent larger particles or dust from entering the electrical component installation area 17 and affecting the normal use of the electrical components.

[0051] The invention has an ingenious structure and can fully dissipate heat for components in the switch cabinet under the condition that the cabinet body of the switch cabinet is relatively well sealed. At the same time, the dust removal effect can be ensured while dissipating heat, thereby solving the problems of heat dissipation and dust removal at the same time.

[0052] As a preferred example of the present invention, an air supply device 9 is provided on the shell assembly 1, and the air supply device 9 is sealedly connected to the air inlet device at the filter chamber 13 through an air supply pipeline, and is used to control the delivery of heat dissipation gas to the filter chamber 13. A through hole 11 is provided on the shell assembly 1, which is used for the normal circulation of airflow inside and outside the shell assembly 1.

[0053] By arranging an air supply device 9 on the shell assembly 1 to adjust and control the flow rate of gas delivered to the filter chamber 13, when the local temperature of the electrical component installation area 17 is high, the air supply device 9 can be used to increase the air flow to the filter chamber 13, thereby improving the heat dissipation efficiency inside the electrical component installation area 17. Under normal working conditions, the air supply device 9 may not be started or maintained in a low-power working state, and a low air flow is input into the filter chamber 13, or the filter chamber 13 is naturally ventilated and dissipated through the through-hole 11.

[0054] This setting can adjust the working power of the air supply device 9 as needed, thereby adjusting the air flow to the filter chamber 13 to ensure the heat dissipation effect. As a preferred example of the present invention, the air supply device 9 is an air supply pump or an air supply fan.

[0055] As a preferred example of the present invention, an electromagnetic control valve 10 is provided on the air supply device 9 and / or the air supply pipeline, and the electromagnetic control valve 10 is used to control the on-off of the air supply device 9 and / or the air supply pipeline.

[0056] This arrangement facilitates automatic control of the air supply device 9 and air supply flow rate regulation, simplifies manual operation, and improves the accuracy of heat dissipation control.

[0057] As a preferred example of the present invention, the shell assembly 1 includes a bottom plate 101, a rear plate 102, a left plate 103, a right plate 104 and a top plate 105, the bottom plate 101 and the top plate 105 are arranged at the upper and lower ends of the rear plate 102, the left plate 103 and the right plate 104 are arranged at the left and right ends of the rear plate 102, the left and right ends of the partition 12 are respectively fixedly connected to the left and right plates 103 and 104, the air supply device 9 is arranged on the rear plate 102, and a support seat 4 is arranged on the lower surface of the bottom plate 101. The seat 4 is used to form a gap between the base plate 101 and the ground, and the air inlet hole device includes a first air inlet hole 1011, a second air inlet hole 1031 and a third air inlet hole 1041. The first air inlet hole 1011 is arranged on the base plate 101, the second air inlet hole 1031 is arranged on the left side plate 103, and the third air inlet hole 1041 is arranged on the right side plate 104. The areas where the first air inlet hole 1011, the second air inlet hole 1031 and the third air inlet hole 1041 are located are all arranged below the partition 12 and are covered by the air supply duct.

[0058] This arrangement arranges the air supply device 9 on the rear plate 102, and the air supply device 9 delivers the heat dissipation air into the filter chamber 13 from the left side, right side and bottom of the shell assembly 1 respectively through the air supply pipeline. On the one hand, this arrangement facilitates the adjustment of the air supply volume, and on the other hand, it can also change the air supply volume in the local area, accurately dissipate heat in the local area with higher temperature, reduce energy consumption, and ensure reliable heat dissipation.

[0059] As a preferred example of the present invention, the air outlet duct of the solenoid control valve 10 includes a first passage 1001, a second passage 1002, and a third passage 1003. The first passage 1001 is connected to the first air supply duct 6, and the first air supply duct 6 is arranged on the lower surface of the base plate 101. The second passage 1002 is connected to the second air supply duct 7, and the second air supply duct 7 is arranged on the left side of the left side plate 103. The third passage 1003 is connected to the third air supply duct 8, and the third air supply duct 8 is arranged on the right side of the right side plate 104.

[0060] This arrangement discloses a connection structure between an electromagnetic control valve 10 and an air supply pipeline. The electromagnetic control valve 10 can control the on-off of the first passage 1001, the second passage 1002, and the third passage 1003 respectively, and the control is precise, simple and reliable.

[0061] As a preferred example of the present invention, the air supply pipeline includes an air supply main pipe and air supply branch pipes, and each of the air supply main pipes is connected to a plurality of air supply branch pipes.

[0062] Specifically, the air supply pipeline includes a first air supply pipeline 6, a second air supply pipeline 7, and a third air supply pipeline 8. The first air supply pipeline 6 includes a first air supply main pipe 601 and a first air supply branch pipe 602. The first air supply main pipe 601 is connected to the first passage 1001. A plurality of first air supply branches 602 are provided. The first air inlet holes 1011 are arranged in an array on the bottom plate 101. Each of the first air supply branches 602 covers a row of the first air inlet holes 1011 or a column of the first air inlet holes 1011. Preferably, the first air supply main pipe 601 is arranged near the middle of the bottom plate 101, and the first air supply branch pipes 602 are symmetrically arranged on both sides of the first air supply main pipe 601.

[0063] Similarly, the second air supply duct 7 includes a second air supply main pipe 701 and a second air supply branch pipe 702, the second air supply main pipe 701 is connected to the second passage 1002, the second air supply branch pipe 702 is arranged on one side of the second air supply main pipe 701, and the second air inlet holes 1031 are arranged in an array on the left side plate 103, and each of the second air supply branch pipes 702 covers a row of the second air inlet holes 1031 or a column of the second air inlet holes 1031.

[0064] The third air supply duct 8 includes a third air supply main pipe 801 and a third air supply branch pipe 802. The third air supply main pipe 801 is connected to the third passage 1003. The third air supply branch pipe 802 is arranged on one side of the third air supply main pipe 801. The third air inlet holes 1041 are arranged in an array on the right side plate 104. Each of the third air supply branch pipes 802 covers a row of the third air inlet holes 1041 or a column of the third air inlet holes 1041.

[0065] The above arrangement discloses the specific structure of the air supply pipeline, which is compact and ensures the accuracy and reliability of heat dissipation air volume control and flow regulation.

[0066] As a preferred example of the present invention, the through openings 11 are arranged on the bottom plate 101, and the ratio of the number of the through openings 11 to the number of the fourth air inlet holes 1201 on the partition plate 12 is not greater than 0.3.

[0067] On the one hand, this arrangement ensures the reliability of the heat dissipation work of the filter chamber 13 through the through-hole 11 by natural air intake when the air supply device 9 of the switch cabinet is in the closed state or the low-power working state. On the other hand, it also prevents the heat dissipation airflow entering the filter chamber 13 through the air inlet hole device from directly flowing out through the through-hole 11 without cooling the electrical components in the electrical component installation area 17. At the same time, when the air supply device 9 is in the high-power working state, it also ensures that the airflow inside the shell assembly 1 is discharged reliably and smoothly, avoiding damage to the electrical components in the electrical component installation area 17 caused by excessive pressure.

[0068] As a preferred example of the present invention, a plurality of air outlet holes 1021 are arranged on the rear plate 102, and the air outlet holes 1021 are arranged near the upper end of the rear plate 102. A blocking cap 1022 is arranged at each of the air outlet holes 1021, and one side of the blocking cap 1022 can be opened in a direction away from the rear plate 102 under the action of airflow.

[0069] When the air supply device 9 is working, there will be a larger heat dissipation airflow inside the shell assembly 1, which can overcome the deadweight of the blocking cap 1022 to open the air outlet 1021, so that the heat dissipation airflow passing through the electrical component installation area 17 is discharged from the air outlet 1021, and the air outlet 1021 is set at a position close to the upper end of the rear plate 102, so that the heat dissipation airflow can fully dissipate the heat of the electrical components in the electrical component installation area 17, thereby ensuring the heat dissipation effect.

[0070] As a preferred example of the present invention, the filter device 15 can be pulled out and placed in the filter chamber 13, and the filter device 15 includes a horizontal filter 1501, a first vertical filter 1502 and a second vertical filter 1503. The first vertical filter 1502 and the second vertical filter 1503 are arranged on both sides of the horizontal filter 1501, the horizontal filter 1501 completely covers the area where the first air inlet hole 1011 is located, and the first filter hole 15011 is arranged on the horizontal filter 1501, the first vertical filter 1502 completely covers the area where the second air inlet hole 1031 is located, the second filter hole 15021 is arranged on the first vertical filter 1502, the second vertical filter 1503 completely covers the area where the third air inlet hole 1041 is located, and the third filter hole 15031 is arranged on the second vertical filter 1503.

[0071] This setting discloses a specific structure of a filtering device, which has a reasonable structure and reliable filtering. The filtering device 15 can be taken out by pulling out for cleaning, which is convenient to clean, thereby enhancing the heat dissipation performance and dust removal performance of the switch cabinet of the present invention.

[0072] As a preferred example of the present invention, sliding plates 1507 are provided at both ends of the filter device 15, and the sliding plates 1507 are slidably connected with the slide grooves provided in the filter chamber 13. As an example of the present invention, the sliding plates 1507 are not perforated, and two sliding plates 1507 are provided for each section of the filter device 15, the sliding plates 1507 in the high position are provided at a height not lower than the highest position of the second air inlet hole 1031 and / or the third air inlet hole 1041, and the sliding plates 1507 in the low position are provided at a height not higher than the lowest position of the second air inlet hole 1031 and / or the third air inlet hole 1041.

[0073] As a preferred example of the present invention, the projection position of the second filter hole 15021 on the left side plate 103 and the projection position of the third filter hole 15031 on the left side plate 103 are staggered.

[0074] This arrangement prevents the filtered heat dissipation airflow entering from the first vertical filter 1502 or the second vertical filter 1503 from directly flowing out from the opposite direction, thereby ensuring the reliability of the filtered heat dissipation airflow flowing through the fourth air inlet 1201 on the partition 12 to the electrical component installation area 17, thereby ensuring the heat dissipation effect.

[0075] As a preferred example of the present invention, the diameter of the second filter hole 15021 is equal to or close to the diameter of the third filter hole 15031, the diameter of the second filter hole 15021 and the third filter hole 15031 are smaller than the diameter of the first filter hole 15011, and the diameter of the first filter hole 15011 is smaller than the diameter of the fourth air inlet hole 1201.

[0076] This arrangement allows the heat dissipation airflow entering the electrical component installation area 17 to be filtered through at least two filter screens, and the arrangement of the diameter relationship facilitates ensuring the smoothness and reliability of the heat dissipation airflow flowing toward the electrical component installation area 17 .

[0077] As a preferred example of the present invention, the filtering device 15 also includes a third vertical filter 1504, a fourth filter hole 15041 is arranged on the third vertical filter 1504, a top filter 1505 is arranged above the horizontal filter 1501, and a fifth filter hole 15051 is arranged on the top filter 1505, and the third vertical filter 1504 is provided with at least two paths, between the third vertical filter 1504 and the first vertical filter 1502, and / or, between the third vertical filter 1504 and the second vertical filter 1503, and / or, between two adjacent third vertical filters 1504, a multiple filter part 1506 is arranged, and the multiple filter part 1506 is used to filter the heat dissipation airflow entering between the horizontal filter 1501 and the top filter 1505 for multiple times and then enter the electrical component installation area 17 through the fifth filter hole 15051.

[0078] This arrangement further optimizes the structure of the filter device 15, so that the heat dissipation airflow entering the filter device 15 in the filter chamber 13 can enter the electrical component installation area 17 to dissipate heat for the electrical components after passing through at least multiple levels of filtration. On the one hand, this ensures the dust removal effect, and on the other hand, it prevents the heat dissipation airflow from directly entering the electrical component installation area 17 from being too large, thereby affecting the normal use of the electrical components.

[0079] As a preferred example of the present invention, the multiple filter section 1506 includes a first filter section 15061 and a second filter section 15062, a first connecting plate 15063 and a second connecting plate 15064 are arranged between the first filter section 15061 and the second filter section 15062, the second connecting plate 15064 is arranged at the lower ends of the first filter section 15061 and the second filter section 15062, there is a gap between the second connecting plate 15064 and the horizontal filter screen 1501, the first connecting plate 1506 3 is arranged above the second connecting plate 15064, and a guide plate 15065 is arranged on the side of the second layer filter part 15062 away from the first layer filter part 15061, wherein the first layer filter part 15061, the second layer filter part 15062, the first connecting plate 15063, and the second connecting plate 15064 are all provided with filter holes, the guide plate 15065 is a flat plate structure with no holes and arranged obliquely, and the fifth filter hole 15051 is arranged on the top filter screen 1505 above the guide plate 15065.

[0080] As an example of the present invention, the guide plate 15065 is set as a flat plate structure with no holes and is set obliquely, and the fifth filter hole 15051 is only set on the top filter screen 1505 above the guide plate 15065, so that when the heat dissipation airflow entering between the horizontal filter screen 1501 and the top filter screen 1505 passes through the multiple filter parts 1506, it first passes through the first layer filter part 15061 or the filter holes on the second connecting plate 15064, and then passes through the filter holes of the first connecting plate 15063 or directly passes through the second filter hole 15064. The filter holes on the first filter portion 15062 flow to the space between the second filter portion 15062 and the guide plate 15065. The heat dissipation airflow passing through the filter holes of the first connecting plate 15063 finally passes through the filter holes on the second filter portion 15062 and also flows to the space between the second filter portion 15062 and the guide plate 15065. Finally, it flows to a position close to the top filter screen 1505 through the guiding effect of the guide plate 15065, and then flows to the partition 12 through the fifth filter hole 15051 on the top filter screen 1505.

[0081] This arrangement allows the heat dissipation airflow passing through the filter device 15 to pass through at least two or three layers of filtering, and then flow to the electrical component installation area 17 through the filtering effect of the partition 12, further improving the dust removal effect and ensuring the reliability of the normal operation of the electrical components.

[0082] As an example of the present invention, the filter hole set on the first layer filter part 15061 is the sixth filter hole 150611, and the filter hole set on the second layer filter part 15062 is the seventh filter hole 150621. The projection positions of the sixth filter hole 150611 and the seventh filter hole 150621 on the left side panel 103 partially overlap or are staggered.

[0083] The filter hole arranged on the first connecting plate 15063 is the eighth filter hole 150631 , and the filter hole arranged on the second connecting plate 15064 is the ninth filter hole 150641 . The projection positions of the eighth filter hole 150631 and the ninth filter hole 150641 on the horizontal filter screen 1501 are overlapped.

[0084] This arrangement further improves the reliability of the scattered airflow passing through the filtering effect of the multiple filter parts 1506 and finally flowing to the partition 12 through the fifth filter hole 15051 under the guidance of the guide plate 15065, thereby avoiding the heat dissipation airflow entering from multiple directions to form turbulent airflow during multiple filtrations, thereby affecting the heat dissipation effect and efficiency.

[0085] As a preferred example of the present invention, a heat storage and heat exchange device 16 is provided on the shell assembly 1. The heat storage and heat exchange device 16 can absorb heat and store heat when the temperature of the electrical components in the electrical component installation area 17 is high, and release heat when the temperature of the electrical components in the electrical component installation area 17 is low or when the air supply device 9 passes a heat dissipation airflow into the electrical component installation area 17. As an example of the present invention, the heat storage and heat exchange device 16 includes a first heat storage and heat exchange unit 1601, a second heat storage and heat exchange unit 1602, a third heat storage and heat exchange unit 1603, and a fourth heat storage and heat exchange unit 1604. The first heat storage and heat exchange unit 1601 is provided on the left side plate 103, the second heat storage and heat exchange unit 1602 is provided on the top plate 105, the third heat storage and heat exchange unit 1603 is provided on the rear plate 102, and the fourth heat storage and heat exchange unit 1604 is provided on the right side plate 104.

[0086] This configuration is used to ensure the stability of the working environment of the electrical components in the housing assembly 1 and to avoid a sudden increase or decrease in the temperature of the electrical component installation area 17 .

[0087] As a preferred example of the present invention, a plurality of temperature sensors 14 are provided on the shell assembly 1. The temperature sensors 14 are used to detect the temperature of the area where they are located and feed back to the control module 203. The control module 203 can control the opening and closing of the air supply device 9 and the opening and closing of the passage in the electromagnetic control valve 10.

[0088] This arrangement further ensures the reliability and accuracy of the air supply control of the air supply device, and ensures the reliability of the local air supply control when the local temperature in the electrical component installation area 17 is too high, thereby reducing energy waste.

[0089] As an example of the present invention, the control module 203 is arranged on the upper sealing door 2, and the control module 203 adopts an ARM single-chip microcomputer. A display 201 and an indicator light 202 are also arranged on the upper sealing door 2. The control module 203 is electrically connected to the display 201, the indicator light 202, the temperature sensor 14 and the air supply device 9 through a connecting circuit. The control module 203 is arranged below the indicator light 202, and the display 201 is arranged above the indicator light 202.

[0090] This setting makes it easy for users to set up the system and perform manual operations, and is also conducive to fault reminders and working status displays, thereby improving the convenience of user operations.

[0091] As an example of the present invention, a handle 204 and a door lock 205 are provided on a side of the upper sealing door 2 away from the hinged rotation axis, and the door lock 205 can be opened and closed by a control module 203 and / or a key.

[0092] This arrangement ensures that the electrical component installation area 17 is closed reliably in the working state, and is also convenient for users to repair or maintain.

[0093] As an example of the present invention, a smoke alarm 5 is arranged on the top plate 105 , and the smoke alarm 5 can detect the humidity and smoke conditions in the electrical component installation area 17 , and can give an alarm under the action of the control module 203 .

[0094] Example 2

[0095] The present invention also provides a heat dissipation control method based on the above heat dissipation switch cabinet:

[0096] S1: Detect the real-time temperature T of the electrical component installation area through the temperature sensor;

[0097] S2: When the temperature sensor detects that the real-time temperature T of the electrical component installation area is greater than T 阈 When the air supply device is started, the control module is used to control the air supply device to start;

[0098] S3: Detect the smoke situation in the switch cabinet through the smoke alarm. If smoke is detected, the control module controls the air supply device to stop working after the working time S, and continues to detect the smoke situation. If smoke is detected again, execute step S4;

[0099] S4: The control module notifies the operator through the communication circuit and presets the waiting time t. If the operator arrives within the preset time to process, step S5 is executed; if the operator does not process within the preset time t, the smoke alarm emits an audible and visual alarm;

[0100] S5: Operators detect switch cabinet faults through remote control and execute corresponding resolution procedures

[0101] Among them, T 阈 is the higher temperature threshold for the normal operation of the electrical components in the electrical component installation area 17, S is the empirical time for the smoke in the switch cabinet to be eliminated under the action of the air supply device 9, the value range of S is 10s to 180s, preferably 20s to 60s, and the waiting time t is the response time for the operator to learn of the remote alarm and take over the manual operation, the value range of t is 1 to 20s, preferably 3 to 8s.

[0102] As a preferred example of the present invention, S2 includes the following steps:

[0103] S21: When the temperature sensor on the left side plate 103 detects that the real-time temperature T is greater than T 阈 When the air supply device controls the second passage 1002 to open through the electromagnetic control valve 10, the second air supply pipeline 7 on the left side plate 103 introduces heat dissipation air into the filter chamber 13;

[0104] S22: When the temperature sensor on the right side plate 104 detects that the real-time temperature T is greater than T 阈 When the air supply device controls the third passage 1003 to open through the electromagnetic control valve 10, the third air supply pipeline 8 on the right side plate 104 introduces heat dissipation airflow into the filter chamber 13;

[0105] S23: When the temperature sensor on the rear plate 102 detects that the real-time temperature T is greater than T 阈 When , the air supply device controls the first passage 1001 to open through the electromagnetic control valve 10, and the first air supply pipeline 6 on the bottom plate 101 introduces heat dissipation airflow into the filter chamber 13;

[0106] The execution procedures of S21, S22 and S23 can be performed simultaneously. When the temperature sensor 14 on the housing component 1 detects that the real-time temperature T is greater than T 阈 , the air supply device 9 works at high power.

[0107] As another example of the present invention, in the natural state, the air supply device controls the first passage 1001 to be opened through the electromagnetic control valve 10, the air supply device 9 works at low power, and the first air supply pipeline 6 on the bottom plate 101 introduces heat dissipation airflow into the filter chamber 13. That is, when the temperature sensor 14 on the housing assembly 1 detects that the real-time temperature T is greater than T 阈 , the working power of the air supply device 9 is higher than the working power of the air supply device 9 of the switch cabinet in the natural state.

[0108] 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 heat dissipation switch cabinet, characterized in that: The invention comprises a housing assembly (1), wherein an upper sealing door (2) and a lower sealing door (3) are arranged on the front surface of the housing assembly (1), wherein the upper sealing door (2) and the lower sealing door (3) can be hingedly moved relative to the housing assembly (1) to open, wherein a partition (12) is arranged inside the housing assembly (1), wherein the partition (12) is arranged at the connection between the upper sealing door (2) and the lower sealing door (3), wherein an electrical component installation area (17) is formed above the partition (12), wherein a filter chamber (13) is formed below the partition (12), wherein the filter chamber (13) is connected to the external space of the housing assembly (1) via an air inlet device, wherein a filter device (15) is arranged in the filter chamber (13), wherein the filter device (15) is used for filtering gas entering the filter chamber (13), and wherein a fourth air inlet (1201) is arranged on the partition (12), wherein the fourth air inlet (1201) is used for connecting the filter chamber (13) with the electrical component installation area (17); An air supply device (9) is provided on the shell component (1), and the air supply device (9) is sealedly connected to an air inlet device at the filter chamber (13) through an air supply pipeline, and is used to control the delivery of heat dissipation gas to the filter chamber (13). A through hole (11) is provided on the shell component (1) to ensure normal circulation of airflow inside and outside the shell component (1); The shell assembly (1) comprises a bottom plate (101), a rear plate (102), a left side plate (103), a right side plate (104) and a top plate (105); the bottom plate (101) and the top plate (105) are arranged at the upper and lower ends of the rear plate (102); the left side plate (103) and the right side plate (104) are arranged at the left and right ends of the rear plate (102); the left and right ends of the partition plate (12) are respectively fixedly connected to the left side plate (103) and the right side plate (104); the air supply device (9) is arranged on the rear plate (102); a support seat (4) is arranged on the lower surface of the bottom plate (101); the support seat ( 4) used to form a gap between the bottom plate (101) and the ground, the air inlet hole device comprising a first air inlet hole (1011), a second air inlet hole (1031) and a third air inlet hole (1041), the first air inlet hole (1011) being arranged on the bottom plate (101), the second air inlet hole (1031) being arranged on the left side plate (103), the third air inlet hole (1041) being arranged on the right side plate (104), and the areas where the first air inlet hole (1011), the second air inlet hole (1031) and the third air inlet hole (1041) are located are all arranged below the partition plate (12) and are covered by the air supply pipeline; The filter device (15) can be pulled out and placed in the filter chamber (13), and the filter device (15) comprises a horizontal filter screen (1501), a first vertical filter screen (1502) and a second vertical filter screen (1503), wherein the first vertical filter screen (1502) and the second vertical filter screen (1503) are arranged on both sides of the horizontal filter screen (1501), the horizontal filter screen (1501) completely covers the area where the first air inlet hole (1011) is located, and a first filter hole (15011) is arranged on the horizontal filter screen (1501), the first vertical filter screen (1502) completely covers the area where the second air inlet hole (1031) is located, and a second filter hole (15021) is arranged on the first vertical filter screen (1502), the second vertical filter screen (1503) completely covers the area where the third air inlet hole (1041) is located, and a third filter hole (15031) is arranged on the second vertical filter screen (1503); The filtering device (15) further comprises a third vertical filter (1504), a top filter (1505) is arranged above the horizontal filter (1501), a fifth filter hole (15051) is arranged on the top filter (1505), at least two third vertical filters (1504) are arranged, a multiple filter portion (1506) is arranged between the third vertical filter (1504) and the first vertical filter (1502), and / or between the third vertical filter (1504) and the second vertical filter (1503), and / or between two adjacent third vertical filters (1504), the multiple filter portion (1506) is used to filter the heat dissipation airflow entering between the horizontal filter (1501) and the top filter (1505) multiple times before the airflow enters the electrical component installation area (17) through the fifth filter hole (15051).

2. The heat dissipation switch cabinet according to claim 1, characterized in that: An electromagnetic control valve (10) is provided on the air supply device (9) and / or the air supply pipeline, and the electromagnetic control valve (10) is used to control the on / off of the air supply device (9) and / or the air supply pipeline.

3. The heat dissipation switch cabinet according to claim 2, characterized in that: The air outlet pipeline of the electromagnetic control valve (10) comprises a first passage (1001), a second passage (1002), and a third passage (1003); the first passage (1001) is connected to a first air supply pipeline (6), and the first air supply pipeline (6) is arranged on the lower surface of the bottom plate (101); the second passage (1002) is connected to a second air supply pipeline (7), and the second air supply pipeline (7) is arranged on the left side of the left side plate (103); the third passage (1003) is connected to a third air supply pipeline (8), and the third air supply pipeline (8) is arranged on the right side of the right side plate (104).

4. The heat dissipation switch cabinet according to claim 3, characterized in that: The air supply pipeline includes an air supply main pipe and an air supply branch pipe, and each of the air supply main pipes is connected to a plurality of air supply branch pipes.

5. The heat dissipation switch cabinet according to claim 4, characterized in that: The through openings (11) are arranged on the bottom plate (101), and the ratio of the number of the through openings (11) to the number of the fourth air inlet holes (1201) on the partition plate (12) is not greater than 0.

3.

6. The heat dissipation switch cabinet according to claim 1, characterized in that: The multiple filter portion (1506) comprises a first filter portion (15061) and a second filter portion (15062), a first connecting plate (15063) and a second connecting plate (15064) are arranged between the first filter portion (15061) and the second filter portion (15062), the second connecting plate (15064) is arranged at the lower ends of the first filter portion (15061) and the second filter portion (15062), a gap exists between the second connecting plate (15064) and the horizontal filter screen (1501), and the first connecting plate (15063) is arranged at the lower ends of the first filter portion (15061) and the second filter portion (15062). A guide plate (15065) is arranged above the second connecting plate (15064) on the side of the second layer filter portion (15062) away from the first layer filter portion (15061), wherein filter holes are arranged on the first layer filter portion (15061), the second layer filter portion (15062), the first connecting plate (15063) and the second connecting plate (15064), and the guide plate (15065) is a flat plate structure without holes and arranged at an angle, and the fifth filter hole (15051) is arranged on the top filter screen (1505) above the guide plate (15065).

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