Forced air cooling heat dissipation device for resistor cabinet

Abstract

The utility model discloses a forced air cooling heat dissipation device for a resistor cabinet, which solves the problem that heat dissipation is difficult to realize in time while a centralized resistor unit meets high power, and specifically comprises a fan, an air equalizer, an electric appliance mounting chamber and an air duct assembly which are sequentially arranged from bottom to top, the fan is used for providing cold air upwards; the air uniformizing device comprises an air uniformizing support, a *-shaped support horizontally arranged in the middle of the air uniformizing support, and a first flow dividing cone and a second flow dividing cone which are connected to the upper side and the lower side of the *-shaped support. The air uniformizing bracket is connected between the fan and the electric appliance mounting chamber; the first spure spreader and the second spure spreader are conical and annular and are connected with the *-shaped bracket through small ends of the spure spreader and the second spure spreader; the electric appliance mounting chamber is used for mounting a resistor unit to be cooled; the air duct assembly is used for outputting the heat dissipating capacity.

Description

Technical Field

[0001] This utility model relates to heat dissipation devices, specifically to a forced air cooling heat dissipation device for resistor cabinets. Background Technology

[0002] With the development of modern industry, resistor cabinets are being used more and more widely in power transmission and distribution. Their application scenarios are also becoming increasingly diverse, thus presenting new challenges for the structural design of resistor cabinets.

[0003] Currently, many scenarios require low-voltage, high-power resistor cabinets. However, due to space constraints, the size of the resistor units is limited, meaning that the resistor units are arranged relatively densely. To achieve the predetermined power, the current carrying capacity of the resistor units must be increased, which will cause the resistor units to generate excessive heat. The excessive heat accumulates inside the resistor cabinet, and natural air cooling cannot meet the heat dissipation requirements of the resistor units under these circumstances. If the internal heat cannot be dissipated in time, it will cause the resistor units to malfunction and be damaged, leading to serious accidents. Utility Model Content

[0004] To address the technical problem in existing technologies where centrally located resistor units struggle to dissipate heat effectively while meeting high power requirements, frequently leading to resistor unit malfunctions and damage, this invention provides a forced air-cooling device for resistor cabinets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A forced air cooling heat dissipation device for resistor cabinets, characterized by:

[0007] This includes, from bottom to top, the fan, air distributor, electrical installation room, and ductwork assembly;

[0008] The fan is used to supply cool air upwards;

[0009] The air distribution device includes an air distribution bracket, a cross-shaped bracket horizontally arranged in the middle of the air distribution bracket, and a first diverter cone and a second diverter cone connected to the upper and lower sides of the cross-shaped bracket; the air distribution bracket is connected between the fan and the electrical installation chamber; the first diverter cone and the second diverter cone are both conical rings, and both are connected to the cross-shaped bracket through their small ends;

[0010] The electrical installation chamber is used to install the resistor unit to be cooled;

[0011] The air duct assembly is used to output the heat dissipation.

[0012] Furthermore, the sidewalls of the first and second flow dividers are provided with multiple elongated ventilation holes along their circumference;

[0013] The length direction of the ventilation hole is consistent with the generatrix direction of the first or second flow divider cone.

[0014] Furthermore, the connections of the fan, air distributor, electrical installation chamber, and duct assembly are all sealed with sealant.

[0015] Furthermore, the air duct assembly includes an inner air duct and an outer air duct that are interconnected;

[0016] The internal air duct is installed between the electrical installation room and the external air duct.

[0017] Furthermore, louvers are provided at the outlet of the external air duct.

[0018] Furthermore, the fan, air distributor, electrical installation chamber, and internal air duct are all located inside the resistor cabinet where the resistor unit to be cooled is installed.

[0019] Furthermore, it also includes mounting brackets;

[0020] The mounting bracket is installed between the air distribution bracket and the electrical installation chamber to provide more installation space for the first shunt cone and / or the resistor unit to be cooled, and is also connected to the resistor cabinet.

[0021] Furthermore, the fan, air distribution bracket, mounting bracket, electrical installation chamber, inner air duct, and outer air duct are connected in sequence by bolts.

[0022] Furthermore, the fan is an axial flow fan.

[0023] Furthermore, the side wall of the electrical installation chamber is provided with an inlet and an outlet for the heat dissipation resistor unit.

[0024] The beneficial effects of this utility model are:

[0025] 1. The forced air cooling heat dissipation device for resistor cabinet provided by this utility model blows air to the resistor unit through a fan, and delivers the cool air to the resistor unit after being evenly distributed by an air distributor. This enables each resistor element in the resistor unit to dissipate heat evenly, ensuring that each resistor element operates normally. This makes the resistor unit resistant to high temperature, has high heat exchange efficiency, and good IP protection performance.

[0026] 2. The forced air cooling heat dissipation device for resistor cabinets provided by this utility model has the fan, air distributor, electrical installation chamber and air duct components arranged sequentially from bottom to top, which makes the air flow at the air inlet and air outlet large, the heat dissipation efficiency high, and the overall structure is simple and compact, small in size, low in cost and easy to install, which can solve the technical problem of heat dissipation in high power resistor cabinets.

[0027] 3. The wind distribution support in this utility model has a star-shaped support in the middle. While supporting the first and second diversion cones, the star-shaped support can also divide the airflow into 8 airflow regions to prevent the airflow from wandering. When some airflow passes through the second diversion cone, it is divided into two parts. One part passes through the ventilation holes on the second diversion cone and continues vertically upward, while the other part gathers towards the central area of ​​the second diversion cone to fill the wind field blind zone in the central area. Then, all airflow is divided into 8 airflow regions by the star-shaped support. In each region, part of the airflow continues to pass through the ventilation holes on the first diversion cone and continues vertically upward, while the other part disperses to the surrounding areas to fill the wind field blind zone. Thus, the wind distribution effect is greatly improved and the existence of wind field blind zones is reduced.

[0028] 4. In this utility model, the connections of the axial flow fan, air distributor, electrical installation chamber, and air duct components are all sealed with sealant, resulting in good overall sealing performance, high temperature resistance, large fan flow, and high heat dissipation efficiency. Attached Figure Description

[0029] Figure 1 This is one of the structural schematic diagrams of an embodiment of a forced air cooling heat dissipation device for a resistor cabinet according to this utility model;

[0030] Figure 2 This is the second structural schematic diagram of an embodiment of a forced air cooling heat dissipation device for a resistor cabinet according to this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the air distribution device in an embodiment of this utility model;

[0032] Figure 4 This is a schematic diagram of the forced air cooling heat dissipation device installed in the motor cabinet in an embodiment of this utility model;

[0033] Figure 5 yes Figure 4 A sectional view.

[0034] Icon labels:

[0035] 1-Louvre, 2-External air duct, 3-Internal air duct, 4-Electrical installation room, 41-Inlet position, 42-Outlet position, 5-Mounting bracket, 6-Air distributor, 61-Air distributor bracket, 62-M-shaped bracket, 63-First diversion cone, 64-Second diversion cone, 7-Axial flow fan, 8-Resistor cabinet, 9-Resistor unit to be cooled. Detailed Implementation

[0036] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] This utility model provides a forced air cooling heat dissipation device for resistor cabinets, combined with... Figure 1 and Figure 2 As shown, the device includes, from bottom to top, a fan, an air distributor 6, a mounting bracket 5, an electrical installation chamber 4, and an air duct assembly. The fan is an axial flow fan 7. The air duct assembly includes an inner air duct 3 and an outer air duct 2 that are interconnected. The inner air duct 3 is installed between the electrical installation chamber 4 and the outer air duct 2, and the end of the outer air duct 2 furthest from the inner air duct 3 is the air outlet of the device. The axial flow fan 7, air distributor 6, mounting bracket 5, electrical installation chamber 4, inner air duct 3, and outer air duct 2 are all connected sequentially by bolts, and then sealed with sealant at each connection point.

[0038] The axial flow fan 7 is used to provide cool air upwards, and its lower end is the air inlet of the device.

[0039] like Figure 3 As shown, the air distribution device 6 includes an air distribution support 61, a cross-shaped support 62 horizontally arranged in the middle of the air distribution support 61, and a first diversion cone 63 and a second diversion cone 64 connected to the upper and lower sides of the cross-shaped support 62. The air distribution support 61 is connected between the fan and the electrical installation chamber 4. The first diversion cone 63 and the second diversion cone 64 are both conical rings, and both are connected to the cross-shaped support 62 through their small ends. The side walls of the first diversion cone 63 and the second diversion cone 64 are provided with multiple elongated ventilation holes along their circumference. The length direction of the ventilation holes is consistent with the generatrix direction of the first diversion cone 63 or the second diversion cone 64.

[0040] Mounting bracket 5 provides more mounting space for the first shunt cone 63 and / or the resistor unit 9 to be cooled, and is also connected to resistor cabinet 8.

[0041] The electrical installation chamber 4 is used to install the resistor unit 9 to be cooled; the side wall of the electrical installation chamber 4 is provided with an inlet position 41 and an outlet position 42 for the resistor unit 9 to be cooled.

[0042] The inner air duct 3 and the outer air duct 2 are used to output the heat dissipation.

[0043] A louver 1 is installed at the outlet of the external air duct 2.

[0044] The installation process is as follows:

[0045] The first step is to connect the axial flow fan 7 and the air distribution unit 6 with bolts;

[0046] The second step is to connect the air distributor 6 and the mounting bracket 5 with bolts.

[0047] The third step is to connect the mounting bracket 5 and the electrical installation chamber 4 with bolts;

[0048] The fourth step is to connect the electrical installation chamber 4 and the internal air duct 3 with bolts;

[0049] Fifth step, connect the inner air duct 3 and the outer air duct 2 with bolts;

[0050] Step 6: Connect the external air duct 2 and the louver 1 with bolts;

[0051] Step 7: Apply sealant to all joints of the louvers 1, external air duct 2, internal air duct 3, electrical installation chamber 4, mounting bracket 5, air distributor 6, and axial fan 7.

[0052] like Figure 4 and Figure 5 As shown, in other embodiments, the fan, air distributor 6, electrical installation chamber 4, and internal air duct 3 can all be installed inside the resistor cabinet 8.

[0053] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A forced air cooling heat dissipation device for resistor cabinets, characterized in that: It includes, from bottom to top, a fan, an air distributor (6), an electrical installation room (4), and a duct assembly; The fan is used to supply cool air upwards; The air distribution device (6) includes an air distribution bracket (61), a cross-shaped bracket (62) horizontally arranged in the middle of the air distribution bracket (61), and a first diverter cone (63) and a second diverter cone (64) connected to the upper and lower sides of the cross-shaped bracket (62); the air distribution bracket (61) is connected between the fan and the electrical installation chamber (4); the first diverter cone (63) and the second diverter cone (64) are both conical rings, and both are connected to the cross-shaped bracket (62) through their small ends; The electrical installation chamber (4) is used to install the resistor unit (9) to be cooled; The air duct assembly is used to output the heat dissipation.

2. The forced air cooling heat dissipation device for resistor cabinet according to claim 1, characterized in that: The first diversion cone (63) and the second diversion cone (64) are provided with a plurality of elongated ventilation holes along their circumference on their sidewalls; The length direction of the ventilation hole is consistent with the generatrix direction of the first diversion cone (63) or the second diversion cone (64).

3. The forced air cooling heat dissipation device for resistor cabinet according to claim 1 or 2, characterized in that: The connections of the fan, air distributor (6), electrical installation chamber (4), and duct assembly are all sealed with sealant.

4. The forced air cooling heat dissipation device for resistor cabinet according to claim 3, characterized in that: The air duct assembly includes an inner air duct (3) and an outer air duct (2) that are interconnected; The internal air duct (3) is installed between the electrical installation room (4) and the external air duct (2).

5. The forced air cooling heat dissipation device for resistor cabinet according to claim 4, characterized in that: The outlet of the external air duct (2) is equipped with louvers (1).

6. The forced air cooling heat dissipation device for resistor cabinet according to claim 5, characterized in that: The fan, air distributor (6), electrical installation room (4), and internal air duct (3) are all located in the resistor cabinet (8) where the resistor unit to be cooled is installed.

7. The forced air cooling heat dissipation device for resistor cabinet according to claim 6, characterized in that: It also includes mounting brackets (5); The mounting bracket (5) is installed between the air distribution bracket (61) and the electrical installation chamber (4) to provide more installation space for the first shunt cone (63) and / or the resistor unit (9) to be cooled, and is also connected to the resistor cabinet (8).

8. The forced air cooling heat dissipation device for resistor cabinet according to claim 7, characterized in that: The fan, air distribution bracket (61), mounting bracket (5), electrical installation room (4), inner air duct (3) and outer air duct (2) are connected in sequence by bolts.

9. The forced air cooling heat dissipation device for resistor cabinet according to claim 8, characterized in that: The fan is an axial flow fan (7).

10. The forced air cooling heat dissipation device for resistor cabinet according to claim 9, characterized in that: The side wall of the electrical installation chamber (4) is provided with an inlet (41) and an outlet (42) for the heat dissipation resistor unit (9).

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