Air-cooled electric control cabinet

Abstract

The utility model discloses an air-cooled electric control cabinet, which comprises an electric control cabinet main body (1), a fixed plate (3) is arranged in the electric control cabinet main body (1) close to the bottom end to form an equipment cavity, and a cooling box (6) is arranged in the equipment cavity; an air inlet cover (4) is arranged on one side of the electric control cabinet main body (1), an air inlet fan (5) is arranged in the air inlet cover (4), and an outlet of the air inlet cover (4) is connected with a cooling box (6); an air uniformizing mechanism (8) is arranged at the top of the fixing plate (3), air outlets (803) of the air uniformizing mechanism (8) face the interior of the electric control cabinet body (1), and the cooling box (6) is connected with the air uniformizing mechanism (8) through an air conveying pipe (7); the top of the electric control cabinet main body (1) is provided with an exhaust cylinder (9), and the exhaust cylinder (9) is internally provided with an exhaust fan (10). Cold air circulation can be formed in the electric control cabinet, the temperature of electronic components in the electric control cabinet is greatly reduced, the operation reliability of the electric control cabinet is improved, and the heat dissipation and cooling effects are improved.

Description

Technical Field

[0001] The utility model relates to the field of electric control cabinets, in particular to an air-cooled electric control cabinet. Background Art

[0002] An electric control cabinet is a control cabinet (box) that assembles switchgear, measuring instruments, protective electrical equipment, and auxiliary equipment in a closed or semi-enclosed metal cabinet or on a screen according to electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger the safety of people and surrounding equipment. However, the electrical components inside existing electric control cabinets are prone to heat during operation, and overheating due to weather can cause internal wiring to age and cause fires.

[0003] After searching, patent documents related to the technology of electric control cabinets have been disclosed. For example, Chinese patent announcement number: CN216312496U discloses an air-cooled, dehumidified and moisture-proof electric control cabinet, including an electric control cabinet body and an electric control cabinet support column. The electric control cabinet body is installed at the upper end position of the electric control cabinet support column, an electric control cabinet door is provided at the front position of the electric control cabinet body, a heat dissipation air box is provided at the top position of the electric control cabinet body, heat dissipation ports are respectively provided at both sides of the electric control cabinet body, air supply ducts are provided at the intersection positions of the electric control cabinet body and the heat dissipation air box on both sides, a dust cover is provided at the top position of the heat dissipation port, an electric controller and an electric light are provided inside the electric control cabinet body, and the electric controller and the electric light are electrically connected to an external power supply through an electric controller switch button and an electric light switch button respectively.

[0004] However, the above-mentioned existing technical solutions have the following defects: the current heat dissipation mode of the electric control cabinet is single, and heat is only dissipated through the heat dissipation fan chassis. When the electric control cabinet is running at full load, it cannot meet the heat dissipation requirements, the heat dissipation effect is poor, the service life of the electric control cabinet is shortened, and the reliability of the electric control cabinet is greatly reduced. Utility Model Content

[0005] The utility model provides an air-cooled electric control cabinet to solve the problem of poor heat dissipation effect of the electric control cabinet in the prior art.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is:

[0007] A wind-cooled electric control cabinet comprises an electric control cabinet body (1), a fixed plate (3) is installed near the bottom of the electric control cabinet body (1), a space between the bottom of the electric control cabinet body (1) and the fixed plate (3) forms an equipment cavity, and a cooling box (6) is arranged in the equipment cavity; an air intake hood (4) is installed on one side of the electric control cabinet body (1) corresponding to the position of the equipment cavity, the inlet of the air intake hood (4) leads to the outside of the electric control cabinet body (1), an air intake fan (5) is installed in the air intake hood (4), and the outlet of the air intake hood (4) is connected to the cooling box (6); an air distribution mechanism (8) is arranged on the top of the fixed plate (3), and the air distribution mechanism (8) has a plurality of air outlets (803). Each air outlet (803) of the air balancing mechanism (8) faces the interior of the electric control cabinet body (1) above the fixed plate (3), and the cooling box (6) is connected to the air inlet of the air balancing mechanism (8) through the air supply pipe (7); an exhaust duct (9) is installed on the top of the electric control cabinet body (1), and an exhaust fan (10) is installed in the exhaust duct (9); the air intake fan (5) transports the external air to the cooling box (6) through the air intake cover (4) for cooling, and the cooled air is evenly distributed by the air balancing mechanism (8) and output to the interior of the electric control cabinet body (1) above the fixed plate (3), and finally the air in the electric control cabinet body (1) is discharged through the exhaust fan (10) in the exhaust duct (9).

[0008] Furthermore, the cooling box (6) has an air inlet cavity (603), an air outlet cavity (604) and a cooling cavity (602) located between the air inlet cavity (603) and the air outlet cavity (604); a plurality of cooling air ducts (605) are provided in the cooling cavity (602); both ends of the cooling air ducts (605) are connected to the air inlet cavity (603) and the air outlet cavity (604), respectively; the outlet of the air inlet hood (4) is connected to the air inlet cavity (603) in the cooling box (6); the air outlet cavity (604) of the cooling box (6) is connected to the air inlet of the air equalization mechanism (8) through the air supply pipe (7).

[0009] Furthermore, an air collecting hood (607) is installed inside the air outlet cavity (604), and the outlet of the air collecting hood (607) is connected to the air inlet of the air equalizing mechanism (8) through the air delivery pipe (7).

[0010] Furthermore, the cooling chamber (602) of the cooling box (6) forms a cooling water circulation loop with an external cooling liquid source through a cooling water inlet pipe (608), a cooling water outlet pipe (609) and the like.

[0011] Furthermore, the air balancing mechanism (8) includes an air balancing plate (801) mounted on the fixed plate (3), and a plurality of groups of air delivery slots (802) are arranged inside the air balancing plate (801) from top to bottom. The lengths of the air delivery slots (802) increase from top to bottom, and an air outlet (803) is provided at the top end of one side of each group of air delivery slots (802). An air distribution cover (804) connected to the air delivery slots (802) is provided on the side of the air balancing plate (801) away from the air outlet (803), and the air distribution cover (804) passes through the fixed plate (3) and has an inlet connected to the air delivery pipe (7). A plurality of air distribution plates (805) connected to the air balancing plate (801) are arranged inside the air distribution cover (804).

[0012] Furthermore, a protective cover (11) is provided on the top of the electric control cabinet body (1) and the outer cover of the exhaust duct (9), and filter screens (1101) are installed on both sides of the protective cover (11) and the inlet of the air intake cover (4).

[0013] Furthermore, the electric control cabinet body (1) is placed on a base (12), a groove (1201) is provided on the top of the base (12), a limit block (13) is provided on the bottom of the electric control cabinet body (1), the limit block (13) is placed in the groove (1201), and a plurality of shock absorbers (14) are installed between the bottom of the limit block (13) and the bottom end of the groove (1201).

[0014] Furthermore, the top of the base (12) is provided with limit rods (15) around the groove (1201), and the bottom of the electric control cabinet body (1) is provided with a limit groove (16) corresponding to the position of the limit rod (15), and the limit rod (15) is movably inserted into the limit groove (16).

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] (1) The utility model introduces outside air into the electric control cabinet through an air intake fan, then uses a cooling box to heat the introduced air to form cold air, which is then discharged through an exhaust fan, forming a cold air circulation inside the electric control cabinet, greatly reducing the temperature of the electronic components in the electric control cabinet and improving the reliability of the operation of the electric control cabinet.

[0017] (2) The utility model has an air distribution mechanism. After the cold air enters the air distribution hood, the cold air is evenly distributed to each air duct through the air distribution plate. The length of the air duct increases from top to bottom. The air outlet is set at the top of one side of the air duct, so that the cold air can be evenly distributed to the inside of the electric control cabinet, thereby evenly cooling the inside of the electric control cabinet and improving the heat dissipation and cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the overall structure of an air-cooled electric control cabinet of the present utility model.

[0019] Figure 2 The utility model is a schematic diagram of the internal structure of an air-cooled electric control cabinet.

[0020] Figure 3 The utility model is a schematic diagram of the internal structure of the cooling box of an air-cooled electric control cabinet.

[0021] Figure 4 The utility model is a schematic diagram of the air distribution mechanism of an air-cooled electric control cabinet.

[0022] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of area A.

[0023] In the figure: 1. Electric control cabinet body; 2. Cabinet door; 3. Fixed plate; 4. Air intake hood; 5. Air intake fan; 6. Cooling box; 601. Partition; 602. Cooling chamber; 603. Air intake chamber; 604. Air outlet chamber; 605. Cooling air duct; 606. Air inlet; 607. Air collecting hood; 608. Cooling water inlet pipe; 609. Cooling water outlet pipe; 7. Air duct; 8. Air equalization mechanism; 801. Air equalization plate; 802. Air duct; 803. Air outlet; 804. Air distribution hood; 805. Air distribution plate; 9. Exhaust duct; 10. Exhaust fan; 11. Protective cover; 1101. Filter; 12. Base; 1201. Groove; 13. Limit block; 14. Shock absorber; 15. Limit rod; 16. Limit slot. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-5As shown, this embodiment discloses an air-cooled electric control cabinet, comprising an electric control cabinet body 1, a cabinet door 2 movably hinged at the front end of the electric control cabinet body 1, a fixed plate 3 installed near the bottom end of the electric control cabinet body 1, a device cavity is formed by the space between the bottom end of the electric control cabinet body 1 and the fixed plate 3, a cooling box 6 is arranged in the device cavity, an air intake hood 4 is installed on one side of the electric control cabinet body 1 corresponding to the position of the device cavity, an air intake fan 5 is installed in the air intake hood 4, the outlet of the air intake hood 4 is connected to the cooling box 6, an air distribution mechanism 8 is arranged on the top of the fixed plate 3, the air distribution mechanism 8 has a plurality of air outlets 803, and each air outlet 803 of the air distribution mechanism 8 is divided into The cooling box 6 is connected to the air inlet of the wind equalizing mechanism 8 through the air duct 7. An exhaust duct 9 is installed at the top center of the electric control cabinet body 1. An exhaust fan 10 is installed in the exhaust duct 9. When the electric control cabinet is working, the outside air is introduced into the electric control cabinet through the air intake fan 5, and then the introduced air is heat-exchanged to form cold air through the cooling box 6. The cold air is evenly distributed in the electric control cabinet through the wind equalizing mechanism 8 and then discharged through the exhaust fan 10, forming a cold air circulation inside the electric control cabinet, which greatly reduces the temperature of the electronic components in the electric control cabinet and improves the reliability of the operation of the electric control cabinet.

[0026] In this embodiment, please refer to Figure 2 and Figure 3 The cooling box 6 is provided with partitions 601 on both sides. A cooling chamber 602 is formed between the two partitions 601. An air inlet chamber 603 is formed between one side of the cooling box 6 and the corresponding partition 601, while an air outlet chamber 604 is formed between the other side of the cooling box 6 and the corresponding partition 601. Multiple cooling air ducts 605 are provided within the cooling chamber 602. The cooling air ducts 605 are made of copper. Both ends of the cooling air ducts 605 pass through the partitions 601 and are connected to the air inlet chamber 603 and the air outlet chamber 604, respectively. An air inlet 606 communicating with the air inlet cavity 603 is provided on one side of the cooling box 6, the outlet of the air inlet hood 4 is connected to the air inlet 606, and an air collecting hood 607 is installed inside the air outlet cavity 604. The outlet of the air collecting hood 607 passes through the cooling box 6 and is connected to the air duct 7. A cooling water inlet pipe 608 is connected to the top of the back of the cooling box 6, and a cooling water outlet pipe 609 is connected to the bottom of the front end of the cooling box 6. The cooling water inlet pipe 608 and the cooling water outlet pipe 609 both extend to the outside of the electric control cabinet body 1. The cooling chamber 602 is connected to an external coolant source through the cooling water inlet pipe 608 and the cooling water outlet pipe 609 to form a cooling water circulation loop. The cooling liquid circulation is a prior art and will not be described in detail here.

[0027] Specifically, when the electrical control cabinet is in use, the air introduced by the air intake fan 5 enters the air intake cavity 603, and the introduced air is dispersed into multiple cooling air ducts 605. The cooling water circulates in the cooling cavity 602 through the operation of the coolant circulation mechanism, thereby heat-exchanging and cooling the air in the cooling air duct 605 to form cold air. The cold air then enters the air outlet cavity 604, is collected by the air collecting hood 607, and then enters the air equalization mechanism 8 through the air supply pipe 7, which can quickly cool the introduced air to form cold air, thereby quickly cooling the electrical control cabinet.

[0028] In this embodiment, please refer to Figure 2 and Figure 4 The air distribution mechanism 8 includes an air distribution plate 801 mounted on the fixed plate 3. A plurality of air delivery slots 802 are arranged inside the air distribution plate 801 from top to bottom. The length of the air delivery slots 802 increases from top to bottom. An air outlet 803 is provided at the top of one side of the air delivery slot 802. An air distribution cover 804 connected to the air delivery slot 802 is provided on the side of the air distribution plate 801 away from the air outlet 803. The air distribution cover 804 passes through the fixed plate 3 and its inlet is connected to the air delivery pipe 7. A plurality of air distribution plates 805 connected to the air distribution plate 801 are arranged inside the air distribution cover 804. 5 is one less than the number of air ducts 802. The air distribution cover 804 is evenly divided into several air passages by multiple air distribution plates 805. Each air passage is connected to an air duct 802. After the cold air enters the air distribution cover 804, the cold air is evenly distributed to each air duct 802 through the air distribution plates 805. The length of the air duct 802 increases from top to bottom. The air outlet 803 is set at the top of one side of the air duct 802, so that the cold air can be evenly distributed to the inside of the electric control cabinet, thereby evenly cooling the inside of the electric control cabinet and improving the heat dissipation and cooling effect.

[0029] In this embodiment, please refer to Figure 1 and Figure 2 A protective cover 11 is provided on the outer side of the exhaust duct 9 at the top of the electric control cabinet body 1. The protective cover 11 is used to protect the exhaust fan 10 from damage. Filters 1101 are installed on both sides of the protective cover 11 and the inlet of the air intake cover 4. The filter 1101 is used to filter dust particles in the air to avoid pollution and erosion inside the electric control cabinet.

[0030] In this embodiment, please refer to Figure 2 and Figure 5A base 12 is provided under the main body 1 of the electric control cabinet, and a groove 1201 is provided on the top of the base 12. A limit block 13 is provided at the bottom of the main body 1 of the electric control cabinet. The cross section of the limit block 13 is smaller than the cross section of the groove 1201. The limit block 13 is placed in the groove 1201. A plurality of shock absorbers 14 are installed between the bottom of the limit block 13 and the bottom end of the groove 1201. The vibration and shaking generated by the air cooling of the electric control cabinet are alleviated by the provided shock absorbers 14, so that the electric control cabinet is quieter and more stable when in use.

[0031] In a preferred example of the present application, limiting rods 15 are installed around the groove 1201 at the top of the base 12, and a limiting groove 16 corresponding to the position of the limiting rod 15 is opened at the bottom of the electric control cabinet body 1. The limiting rod 15 is movably inserted into the limiting groove 16, and the stability of the electric control cabinet is guaranteed by the limiting rod 15 and the limiting groove 16.

[0032] The control mode of the present invention is controlled by a controller, and the control program of the controller can be realized by simple programming by those skilled in the art, so the present invention will not further explain the control mode and circuit connection in detail.

[0033] Working principle: When the electric control cabinet is working, the air from outside is introduced into the electric control cabinet through the air intake fan 5, and then the air introduced by the air intake fan 5 enters the air intake cavity 603 of the cooling box 6, and the introduced air is dispersed into multiple cooling air ducts 605. The cooling water is circulated in the cooling cavity 602 by the coolant circulation mechanism, so that the air in the cooling air duct 605 is cooled by heat exchange to form cold air. The cold air then enters the air outlet cavity 604, is collected by the air collecting hood 607, and then enters the air distribution mechanism 8 through the air supply pipe 7. The air introduced into the air distribution hood 804 can be quickly cooled to form cold air, which can quickly cool the electric control cabinet. The cold air is evenly distributed to each air duct 802 through the air distribution plate 805. The length of the air duct 802 increases from top to bottom. The air outlet 803 is set at the top of one side of the air duct 802, so that the cold air can be evenly distributed to the inside of the electric control cabinet, and then discharged through the exhaust fan 10, forming a cold air circulation inside the electric control cabinet, which greatly reduces the temperature of the electronic components in the electric control cabinet and improves the reliability of the operation of the electric control cabinet.

[0034] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner unless there is any contradiction. Such combinations, as long as they do not violate the concept of the present invention, should also be regarded as the contents disclosed in the present disclosure. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0035] The present invention is not limited to the specific details in the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by those skilled in the art should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. An air-cooled electric control cabinet, comprising an electric control cabinet body (1), characterized in that: A fixing plate (3) is installed near the bottom of the electric control cabinet body (1), and the space between the bottom of the electric control cabinet body (1) and the fixing plate (3) forms an equipment cavity, and a cooling box (6) is provided in the equipment cavity; an air intake hood (4) is installed on one side of the electric control cabinet body (1) corresponding to the position of the equipment cavity, and the inlet of the air intake hood (4) leads to the outside of the electric control cabinet body (1), and an air intake fan (5) is installed in the air intake hood (4), and the outlet of the air intake hood (4) is connected to the cooling box (6); an air distribution mechanism (8) is provided on the top of the fixing plate (3), and the air distribution mechanism (8) has multiple air outlets (803), and each of the air distribution mechanisms (8) has a plurality of air outlets (803). The air outlets (803) are respectively directed toward the interior of the electric control cabinet body (1) above the fixed plate (3); the cooling box (6) is connected to the air inlet of the air equalization mechanism (8) through the air supply pipe (7); an exhaust duct (9) is installed on the top of the electric control cabinet body (1), and an exhaust fan (10) is installed in the exhaust duct (9); the air intake fan (5) transports the external air to the cooling box (6) through the air intake cover (4) for cooling, and the cooled air is evenly distributed through the air equalization mechanism (8) and output to the interior of the electric control cabinet body (1) above the fixed plate (3), and finally the air in the electric control cabinet body (1) is discharged through the exhaust fan (10) in the exhaust duct (9).

2. The air-cooled electric control cabinet according to claim 1, characterized in that: The cooling box (6) has an air inlet cavity (603), an air outlet cavity (604), and a cooling cavity (602) located between the air inlet cavity (603) and the air outlet cavity (604). A plurality of cooling air ducts (605) are provided in the cooling cavity (602), and the two ends of the cooling air ducts (605) are respectively connected to the air inlet cavity (603) and the air outlet cavity (604). The outlet of the air inlet hood (4) is connected to the air inlet cavity (603) in the cooling box (6), and the air outlet cavity (604) of the cooling box (6) is connected to the air inlet of the air equalization mechanism (8) through the air delivery pipe (7).

3. The air-cooled electric control cabinet according to claim 2, characterized in that: An air collecting hood (607) is installed inside the air outlet cavity (604), and the outlet of the air collecting hood (607) is connected to the air inlet of the air equalizing mechanism (8) through an air delivery pipe (7).

4. The air-cooled electric control cabinet according to claim 2, characterized in that: The cooling chamber (602) of the cooling box (6) forms a cooling water circulation loop with an external cooling liquid source through a cooling water inlet pipe (608), a cooling water outlet pipe (609).

5. The air-cooled electric control cabinet according to claim 1, characterized in that: The air distribution mechanism (8) includes an air distribution plate (801) mounted on a fixed plate (3), a plurality of groups of air delivery slots (802) are arranged inside the air distribution plate (801) from top to bottom, the lengths of the air delivery slots (802) increase from top to bottom, an air outlet (803) is provided at the top end of one side of each group of air delivery slots (802), an air distribution hood (804) connected to the air delivery slots (802) is provided on the side of the air distribution plate (801) away from the air outlet (803), the air distribution hood (804) passes through the fixed plate (3) and the inlet is connected to the air delivery pipe (7), and a plurality of air distribution plates (805) connected to the air distribution plate (801) are arranged inside the air distribution hood (804).

6. The air-cooled electric control cabinet according to claim 1, characterized in that: A protective cover (11) is provided on the top of the electric control cabinet body (1) and the outer cover of the exhaust duct (9). Filters (1101) are installed on both sides of the protective cover (11) and the inlet of the air intake cover (4).

7. The air-cooled electric control cabinet according to claim 1, characterized in that: The electric control cabinet body (1) is placed on a base (12), a groove (1201) is provided on the top of the base (12), a limit block (13) is provided on the bottom of the electric control cabinet body (1), the limit block (13) is placed in the groove (1201), and a plurality of shock absorbers (14) are installed between the bottom of the limit block (13) and the bottom end of the groove (1201).

8. The air-cooled electric control cabinet according to claim 7, characterized in that: Limiting rods (15) are installed around the groove (1201) at the top of the base (12), and a limiting groove (16) corresponding to the position of the limiting rod (15) is opened at the bottom of the electric control cabinet body (1), and the limiting rod (15) is movably inserted into the limiting groove (16).

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