Electrical cabinet for electrical automation

Abstract

The utility model discloses an electrical automation electrical cabinet, which comprises a cabinet body shell and a cabinet door structure movably connected on the cabinet body shell, a ventilation window is arranged on the inner wall of one side of the cabinet body shell, and a temperature sensor is arranged on the inner wall of the cabinet body shell. The inner wall of the cabinet body shell is provided with a dust filtering assembly used for adjusting the coverage area of the ventilation window according to the temperature value monitored by the temperature sensor, and the inner wall of one side of the cabinet body shell is provided with two sliding grooves located in the two sides of the ventilation window respectively. The inner wall of the other side of the cabinet body shell is provided with a heat dissipation fan used for increasing the flow rate of hot air to the outer side of the ventilation window, and the heat dissipation fan is located above the ventilation window. According to the utility model, whether the heat dissipation fan is used or not is selected according to the temperature in the cabinet body, and when the heat dissipation fan is used or not used, external dust can be effectively prevented from entering the electrical cabinet, so that the influence of the dust on electrical equipment in the electrical cabinet is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of electric cabinets, in particular to an electric cabinet for electric automation. Background Art

[0002] The function of the electrical cabinet is to install and protect electrical equipment and electrical components, such as circuit switches, current transformers, fuses, etc. In order to facilitate the dissipation of hot air inside the electrical cabinet, it is generally necessary to install heat dissipation windows on its side walls, and cooperate with the heat dissipation structure to achieve the interconnection of air inside and outside the electrical cabinet, so as to achieve the purpose of cooling and extend the life of the internal electrical equipment. However, dust in the outside air will also follow the heat dissipation windows into the electrical cabinet, thereby affecting the operation of the electrical equipment inside the electrical cabinet. Based on this, most of the solutions are to cover the heat dissipation windows with filters, and the fine structure of the filters will affect the efficiency of air flow. Therefore, at this stage, electrical cabinets equipped with filters and heat dissipation windows have slight limitations in use. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide an electrical cabinet for electrical automation to solve the problem mentioned in the above background technology that some electrical cabinets are difficult to quickly dissipate the internal hot air and reduce the dust content entering the electrical cabinet.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical cabinet for electrical automation, comprising a cabinet shell and a cabinet door structure movably connected to the cabinet shell, a ventilation window is installed on the inner wall of one side of the cabinet shell, a temperature sensor is installed on the inner wall of the cabinet shell, a dust filter component for adjusting the coverage range on the ventilation window according to the temperature value monitored by the temperature sensor is installed on the inner wall of the cabinet shell, and two slide grooves are respectively located on both sides of the ventilation window on the inner wall of one side of the cabinet shell;

[0005] A heat dissipation fan for increasing the flow rate of hot air to the outside of the ventilation window is installed on the inner wall of the other side of the cabinet shell. The heat dissipation fan is located above the side of the ventilation window, and the inclination of the heat dissipation fan matches the inclination of the ventilation window.

[0006] Preferably, the dust filter assembly includes a dust filter screen plate covering the air vent, and an engaging block adapted to the slide groove is installed on one side of the dust filter screen plate.

[0007] Preferably, the inner wall of the cabinet shell is installed with a multi-section electric push rod for driving the dust filter screen to adjust its position up and down, and the free end of the multi-section electric push rod is detachably installed with an extension plate, and at least two connecting structures for connecting the dust filter screen are installed on the top of the extension plate.

[0008] Preferably, a telescopic spring for suspending the dust filter screen is detachably mounted on the top wall of the cabinet shell, and the length of the slide groove is twice the upper and lower width of the dust filter screen.

[0009] Preferably, a fingerprint control structure is installed on the front of the cabinet door structure, and a lock slot plate adapted to the diameter of the free end of the multi-section electric push rod and the width of the extension plate is installed on the back of the cabinet door structure.

[0010] Preferably, a pressure sensor is installed on the lock slot plate, and the back side of the pressure sensor is in contact with the surface of the multi-section electric push rod.

[0011] Preferably, a perspective window is installed on the cabinet door structure, and a fixing frame for placing the current transformer is installed inside the cabinet shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model adopts different ways to dissipate heat according to the temperature range inside the electrical cabinet, and both heat dissipation modes can effectively prevent external dust from entering the electrical cabinet through the ventilation window, thereby reducing the impact of dust on electrical equipment.

[0014] 2. When the pressure sensor contacts the multi-section electric push rod and senses the pressure signal during the process of pushing the door structure to close, the surface lock slot plate overlaps with the multi-section electric push rod when not in operation, and then the multi-section electric push rod immediately extends downward through the inside of the lock slot plate to complete the autonomous locking of the door structure. This is more convenient and safer than turning the lock with a key. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the dust filter assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the lock slot plate and the pressure sensor of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the cabinet shell and the heat dissipation fan of the utility model.

[0019] In the figure: 1. cabinet shell; 101. temperature sensor; 102. cooling fan; 103. slide; 2. cabinet door structure; 201. fingerprint control structure; 202. lock slot plate; 203. pressure sensor; 204. perspective window; 3. ventilation window; 4. dust filter assembly; 401. dust filter screen plate; 402. fitting block; 403. multi-section electric push rod; 404. extension plate; 405. connection structure; 406. telescopic spring; 5. fixing frame. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The function of an electrical cabinet is to install and protect electrical equipment and electrical components, such as circuit switches, current transformers, fuses, etc. It can provide safe electrical wiring, avoid electric shock accidents, and protect electrical components from external damage. It is usually installed in power plants, substations, factories, residences and other places. In order to facilitate the dissipation of hot air inside the electrical cabinet, it is generally necessary to install heat dissipation windows on its side walls, and cooperate with heat dissipation structures to assist the hot air inside the electrical cabinet to flow outward, maintain the normal working temperature of the equipment, and thus extend its life. In order to reduce the content of dust entering the interior of the electrical cabinet through the heat dissipation windows and improve the safety of the entire electrical cabinet, please refer to Figure 1-Figure 4 , an embodiment provided by the utility model:

[0022] An electrical cabinet for electrical automation, wherein a cabinet shell 1 is made of a steel plate with a waterproof and anti-corrosion coating, which can play a protective role for its internal structure; a cabinet door structure 2 movably connected to the cabinet shell 1 is also made of a steel plate, which has a certain strength, and a rubber strip is provided at the edge closed with the cabinet shell 1 to increase the sealing performance; a ventilation window 3 installed on the inner wall of one side of the cabinet shell 1 is located in the middle and upward position, which is more convenient for hot air to be discharged; in addition, the ventilation window 3 is composed of a window frame and inclined window blades, which can facilitate the circulation of internal and external gases while avoiding direct sunlight and rainwater from entering. A temperature sensor 101 is installed on the inner wall of the cabinet shell 1, and a dust filter component 4 is installed on the inner wall of the cabinet shell 1 for adjusting the coverage range on the ventilation window 3 according to the temperature value monitored by the temperature sensor 101. Two slide grooves 103 are opened on the inner wall of one side of the cabinet shell 1, which are respectively located on both sides of the ventilation window 3. A heat dissipation fan 102 is installed on the inner wall of the other side of the cabinet shell 1 for increasing the flow rate of hot air to the outside of the ventilation window 3. The heat dissipation fan 102 is located on the upper side of the ventilation window 3, and the inclination of the heat dissipation fan 102 is consistent with the inclination of the window blades in the ventilation window 3. A perspective window 204 is installed on the cabinet door structure 2, and a fixing frame 5 for placing a current transformer is installed inside the cabinet shell 1. When the temperature sensor 101 detects that the temperature inside the electrical cabinet is relatively low, the dust filter component 4 maintains a state of covering the air window 3, thereby effectively blocking dust from entering the electrical cabinet, thereby reducing the impact of dust on electrical equipment. After the temperature sensor 101 detects that the temperature value inside the electrical cabinet exceeds the set value, the dust filter component 4 electrically connected thereto is adjusted from a state of completely covering the air window 3 to a state of being misaligned with the air window 3 up and down, thereby exposing the air window 3, and cooperating with the start-up of the heat dissipation fan 102 to generate wind to blow against the air window 3, thereby accelerating the rate at which the upper layer of hot air in the electrical cabinet flows outward. In addition, the airflow generated by the heat dissipation fan 102 will form an air barrier and accelerate the air flow, thereby reducing the time that dust stays, thereby effectively blocking dust from entering the electrical cabinet along the air window 3.

[0023] like Figure 1 , Figure 2 and Figure 4As shown, the dust filter assembly 4 includes a dust filter screen plate 401 covering the air window 3, the length and width of the dust filter screen plate 401 are slightly larger than the length and width of the air window 3, thereby ensuring that the air window 3 is completely covered, and an engaging block 402 adapted to the slide slot 103 is installed on one side of the dust filter screen plate 401, and the part of the engaging block 402 on one side that is stuck in the slide slot 103 is made of rubber material, which has a certain plasticity, thereby facilitating the dust filter screen plate 401 to be stuck on the air window 3 and to be disassembled and cleaned, and a multi-section electric push rod 403 for driving the dust filter screen plate 401 to adjust its position up and down is installed on the inner wall of the cabinet shell 1. The free end of the rod 403 is detachably mounted with an extension plate 404, and at least two connecting structures 405 for connecting the dust filter screen plate 401 are mounted on the top of the extension plate 404. The multi-section electric push rod 403 is electrically connected to the temperature sensor 101. After the temperature sensed by the temperature sensor 101 reaches the set value, the multi-section electric push rod 403 extends downward to the bottom accordingly, thereby driving the extension plate 404 and the connecting structure 405 to move downward together, and generating a downward pulling force on the dust filter screen plate 401, thereby adjusting the dust filter screen plate 401 covering the air window 3 downward to a state of vertical misalignment, thereby restoring the original channel shape of the air window 3.

[0024] like Figure 1 and Figure 2 As shown, the top wall of the cabinet shell 1 is detachably installed with a telescopic spring 406 for suspending the dust filter screen plate 401, and the length of the slide groove 103 is twice the upper and lower widths of the dust filter screen plate 401. When the telescopic spring 406 is not subjected to external force, the dust filter screen plate 401 just covers the air window 3. When the multi-section electric telescopic rod 403 fails and needs to be disassembled for maintenance, the telescopic spring 406 can still be used to suspend the dust filter screen plate 401 to the required height to cover the air window 3.

[0025] At present, most electrical cabinets use key-inserted locks to fix the cabinet housing 1 and the cabinet door structure 2. However, in this method, the staff needs to have a key ready for maintenance, which is slightly less convenient and safe. In order to improve safety, Figure 3 and Figure 4As shown, the front of the cabinet door structure 2 is installed with a fingerprint control structure 201, and the back of the cabinet door structure 2 is installed with a lock slot plate 202 adapted to the diameter of the free end of the multi-section electric push rod 403 and the width of the extension plate 404. A pressure sensor 203 is installed on the lock slot plate 202, and the back of the pressure sensor 203 is in contact with the surface of the multi-section electric push rod 403. In the stage of closing the cabinet door structure 2, the pressure sensor 203 is in contact with the outer side of the multi-section electric push rod 403, and it can sense the pressure signal. Then, the multi-section electric push rod 403 electrically connected thereto extends downward by a set length, so that the free end of the multi-section electric push rod 403 passes through the interior of the lock slot plate 202, thereby achieving the purpose of locking the cabinet door structure 2 and the cabinet shell 1. As for opening the cabinet door structure 2, the fingerprint control structure 201 senses the fingerprint information. When the information is consistent, the multi-section electric push rod 403 electrically connected thereto is controlled to shrink upward to restore to its original state, so as to release the restriction on the lock slot plate 202.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An electrical cabinet for electrical automation, comprising a cabinet housing (1) and a cabinet door structure (2) movably connected to the cabinet housing (1), characterized in that: A ventilation window (3) is installed on the inner wall of one side of the cabinet shell (1), a temperature sensor (101) is installed on the inner wall of the cabinet shell (1), a dust filter assembly (4) is installed on the inner wall of the cabinet shell (1) for adjusting the coverage range on the ventilation window (3) according to the temperature value monitored by the temperature sensor (101), and two slide grooves (103) are provided on the inner wall of one side of the cabinet shell (1) and are respectively located on both sides of the ventilation window (3); A heat dissipation fan (102) for increasing the flow rate of hot air toward the outside of the ventilation window (3) is installed on the inner wall of the other side of the cabinet shell (1); the heat dissipation fan (102) is located above the side of the ventilation window (3), and the inclination of the heat dissipation fan (102) matches the inclination of the ventilation window (3).

2. An electrical cabinet for electrical automation according to claim 1, characterized in that: The dust filter assembly (4) comprises a dust filter screen plate (401) covering the air permeable window (3), and an engaging block (402) adapted to the slide groove (103) is installed on one side of the dust filter screen plate (401).

3. The electrical cabinet for electrical automation according to claim 1, characterized in that: The inner wall of the cabinet shell (1) is provided with a multi-section electric push rod (403) for driving the dust filter screen plate (401) to adjust its position up and down; an extension plate (404) is detachably installed at the free end of the multi-section electric push rod (403); and at least two connection structures (405) for connecting the dust filter screen plate (401) are installed on the top of the extension plate (404).

4. The electrical cabinet for electrical automation according to claim 1, characterized in that: A telescopic spring (406) for suspending the dust filter screen (401) is detachably mounted on the top wall of the cabinet shell (1); the length of the slide groove (103) is twice the upper and lower widths of the dust filter screen (401).

5. The electrical cabinet for electrical automation according to claim 1, characterized in that: A fingerprint control structure (201) is installed on the front of the cabinet door structure (2), and a lock slot plate (202) adapted to the diameter of the free end of the multi-section electric push rod (403) and the width of the extension plate (404) is installed on the back of the cabinet door structure (2).

6. An electrical cabinet for electrical automation according to claim 5, characterized in that: A pressure sensor (203) is installed on the locking slot plate (202), and the back side of the pressure sensor (203) is in contact with the surface of the multi-section electric push rod (403).

7. The electrical cabinet for electrical automation according to claim 1, characterized in that: A perspective window (204) is installed on the cabinet door structure (2), and a fixing frame (5) for placing a current transformer is installed inside the cabinet shell (1).

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