Coupled heat sink high voltage air blast switchgear

Abstract

The application relates to the field of gas-filled switch devices, in particular to a high-voltage gas-filled switch device coupled with a heat dissipation device. The gas-filled switch device comprises a cabinet, a busbar expansion port, a disconnecting switch, an isolation mechanism, a circuit breaker, a solid-sealed pole, a connecting copper bar and an outgoing line bushing. The busbar expansion port, the disconnecting switch and the outgoing line bushing are installed in the cabinet, the isolation mechanism and the circuit breaker are installed on the outside of the cabinet, and the outgoing line bushing, the solid-sealed pole, the disconnecting switch and the busbar expansion port are connected through the connecting copper bar. The application sets a magnetic coupling heat dissipation mechanism one at the bottom of the cabinet and sets a magnetic coupling heat dissipation mechanism two on the upper part of the back plate of the cabinet, so that air circulates in the cabinet. When hot air passes through the heat pipe heat dissipation mechanism, heat is taken out of the cabinet. The magnetic coupling heat dissipation mechanism one and the magnetic coupling heat dissipation mechanism two are connected through magnetic coupling, so that the opening on the cabinet plate body is avoided, and good sealing performance can be maintained. The application improves the heat dissipation efficiency of the gas-filled switch device.

Description

Technical Field

[0001] This invention relates to the field of gas-filled switchgear, and in particular to coupled heat-dissipating high-voltage gas-filled switchgear. Background Technology

[0002] High-current, high-voltage gas-insulated switchgear is mainly used for power distribution and control of high-current loads, and is commonly found in high-voltage circuit breakers, gas-insulated switchgear, and other similar equipment. 35 kV C-GIS gas-insulated switchgear has a large current and requires very high heat dissipation. However, existing switchgear relies solely on aluminum heat sinks on the top and sides of the cabinet for heat dissipation, which is inefficient and cannot meet the needs of high-current, high-voltage gas-insulated switchgear, nor does it meet the requirements of third-party temperature rise testing. Summary of the Invention

[0003] To overcome the shortcomings of existing heat dissipation mechanisms in meeting the heat dissipation requirements of high-current, high-voltage gas-filled switchgear, this invention provides a coupled heat dissipation type high-voltage gas-filled switchgear.

[0004] The technical solution adopted by this invention to solve its technical problem is: a coupled heat dissipation type high-voltage gas-filled switchgear, including a chassis, a busbar expansion port, a disconnecting switch, an isolation mechanism, a circuit breaker, a solid-sealed pole, a connecting copper busbar, and an outgoing bushing. The busbar expansion port, the disconnecting switch, and the outgoing bushing are all installed inside the chassis, while the isolation mechanism and the circuit breaker are all installed outside the chassis. The outgoing bushing, the solid-sealed pole, the disconnecting switch, and the busbar expansion port are connected by a connecting copper busbar. A magnetic coupling heat dissipation mechanism one for blowing hot air from bottom to top is installed at the bottom of the chassis, a heat pipe heat dissipation mechanism for transferring heat from inside the chassis to the outside is installed at the top of the chassis, and a magnetic coupling heat dissipation mechanism two for blowing hot air horizontally is installed on the back plate of the chassis. The magnetic coupling heat dissipation mechanism two is located at the top of the chassis, and a heat dissipation plate is fixed on the outside of the side plate of the chassis.

[0005] According to another embodiment of the present invention, both the magnetic coupling heat dissipation mechanism one and the magnetic coupling heat dissipation mechanism two include a permanent magnet motor, an external coupling magnet, an internal coupling magnet, and fan blades. The permanent magnet motor and the external coupling magnet are located outside the chassis, while the internal coupling magnet and the fan blades are located inside the chassis. The external coupling magnet is fixed on the output shaft of the permanent magnet motor. The housing of the permanent magnet motor is fixed to the outside of the chassis bottom plate. The fan blades are rotatably connected to the inside of the chassis bottom plate and are fixed together with the internal coupling magnet. The internal coupling magnet and the external coupling magnet are magnetically attracted together. Neither the external coupling magnet nor the internal coupling magnet is in contact with the chassis bottom plate. Several magnetic coupling heat dissipation mechanisms one are installed on the chassis bottom plate, and several magnetic coupling heat dissipation mechanisms two are installed on the chassis back plate.

[0006] According to another embodiment of the present invention, the chassis bottom plate is further provided with a bracket 1 fixed inside, the fan blades being rotatably connected to the bracket 1, and a bracket 2 fixed outside the chassis bottom plate, the bracket 2 being fixed together with the housing of the permanent magnet motor.

[0007] According to another embodiment of the present invention, the heat pipe heat dissipation mechanism further includes a tubular heat sink and a heat sink, with a plurality of heat sinks installed on the top plate of the chassis, and a tubular heat sink fixed on the heat sink.

[0008] According to another embodiment of the present invention, the tubular heat sink further includes a bottom heat sink copper plate, a U-shaped tube, and a top heat sink copper plate, wherein the U-shaped tube is fixed between the bottom heat sink copper plate and the top heat sink copper plate, and the bottom heat sink copper plate is fixed on the heat sink fin.

[0009] According to another embodiment of the present invention, the U-shaped tube is further provided with heat-conducting hairs distributed on the inner wall of the tube, the heat-conducting hairs being made of a non-metallic material.

[0010] According to another embodiment of the present invention, the top plate of the chassis is provided with an opening, an aluminum sealing plate is fixed on the opening, a plurality of mounting holes are distributed on the aluminum sealing plate, a heat sink is fixed in the mounting holes, and the bottom of the heat sink is located inside the chassis.

[0011] According to another embodiment of the present invention, a protective cover is fixed on the top plate of the chassis, the protective cover is provided with heat dissipation holes, and the heat pipe heat dissipation mechanism is located inside the protective cover.

[0012] The beneficial effect of this invention is that by setting a magnetic coupling heat dissipation mechanism one at the bottom of the chassis and a magnetic coupling heat dissipation mechanism two at the upper part of the chassis back panel, air circulation is achieved within the chassis. When hot air passes through the heat pipe heat dissipation mechanism, heat is carried away from the chassis. Furthermore, the magnetic coupling heat dissipation mechanism one and the magnetic coupling heat dissipation mechanism two are magnetically coupled, thus avoiding openings in the chassis panel and maintaining good sealing. This application improves the heat dissipation efficiency of gas-operated switchgear. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a structural schematic diagram from a first perspective of the present invention;

[0015] Figure 2 This is a structural schematic diagram from a second perspective of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the magnetic coupling heat dissipation mechanism of the present invention;

[0017] Figure 4This is a schematic diagram of the heat pipe heat dissipation mechanism of the present invention;

[0018] In the diagram: 1. Chassis, 2. Busbar expansion port, 3. Disconnecting switch, 4. Isolation mechanism, 5. Circuit breaker, 6. Solid-sealed pole, 7. Connecting copper busbar, 8. Outgoing sleeve, 9. Magnetic coupling heat dissipation mechanism one, 10. Heat pipe heat dissipation mechanism, 11. Magnetic coupling heat dissipation mechanism two, 12. Heat sink, 91. Permanent magnet motor, 92. External coupling magnet, 93. Internal coupling magnet, 94. Fan blade, 95. Bracket one, 96. Bracket two, 101. Heat sink, 102. Bottom heat dissipation copper plate, 103. U-shaped tube, 104. Top heat dissipation copper plate, 105. Mounting hole, 106. Aluminum sealing plate, 107. Opening, 108. Protective cover. Detailed Implementation

[0019] Figure 1 This is a structural schematic diagram from a first perspective of the present invention; Figure 2 This is a structural schematic diagram from a second perspective of the present invention; Figure 3 This is a schematic diagram of the structure of the magnetic coupling heat dissipation mechanism of the present invention; Figure 4 This is a schematic diagram of the heat pipe heat dissipation mechanism of the present invention.

[0020] Combined with appendix Figure 1 and attached Figure 2 As shown, a coupled heat dissipation type high-voltage gas-filled switchgear includes a chassis 1, a busbar expansion port 2, a disconnecting switch 3, an isolation mechanism 4, a circuit breaker 5, a solid-sealed pole 6, a connecting copper busbar 7, and an outgoing bushing 8. The busbar expansion port 2, the disconnecting switch 3, and the outgoing bushing 8 are all installed inside the chassis 1, while the isolation mechanism 4 and the circuit breaker 5 are installed outside the chassis 1. The outgoing bushing 8, the solid-sealed pole 6, the disconnecting switch 3, and the busbar expansion port 2 are connected by the connecting copper busbar 7. A magnetic coupling heat dissipation mechanism 9 for blowing hot air from bottom to top is installed at the bottom of the chassis 1, and a heat pipe heat dissipation mechanism 10 for transferring heat from inside the chassis 1 to the outside is installed at the top of the chassis 1. A magnetic coupling heat dissipation mechanism 11 for blowing hot air horizontally is installed on the back plate of the chassis 1. The magnetic coupling heat dissipation mechanism 11 is located at the upper part of the chassis 1, and a heat dissipation plate 12 is fixed on the outer side of the side plate of the chassis 1.

[0021] As attached Figure 3As shown, both magnetic coupling heat dissipation mechanism 1 (9) and magnetic coupling heat dissipation mechanism 2 (11) include a permanent magnet motor 91, an external coupling magnet 92, an internal coupling magnet 93, and a fan blade 94. The permanent magnet motor 91 and the external coupling magnet 92 are located outside the chassis 1, while the internal coupling magnet 93 and the fan blade 94 are located inside the chassis 1. The external coupling magnet 92 is fixed on the output shaft of the permanent magnet motor 91. The housing of the permanent magnet motor 91 is fixed to the outside of the bottom plate of the chassis 1. The fan blade 94 is rotatably connected to the inside of the bottom plate of the chassis 1. The fan blade 94 is fixed together with the internal coupling magnet 93. The internal coupling magnet 93 and the external coupling magnet 92 are magnetically attracted together. Neither the external coupling magnet 92 nor the internal coupling magnet 93 is in contact with the bottom plate of the chassis 1. Several magnetic coupling heat dissipation mechanisms 1 (9) are installed on the bottom plate of the chassis 1, and several magnetic coupling heat dissipation mechanisms 2 (11) are installed on the back plate of the chassis 1.

[0022] The output shaft of the permanent magnet motor 91 drives the external coupling magnet 92, which in turn drives the internal coupling magnet 93, which is magnetically attracted to it, to rotate, thereby driving the fan blades 94 to rotate. This magnetic coupling connection avoids the need for holes in the chassis 1 panel, thus maintaining good sealing.

[0023] A bracket 95 is fixed inside the bottom plate of chassis 1, and the fan blades 94 are rotatably connected to the bracket 95. A bracket 96 is fixed outside the bottom plate of chassis 1, and the bracket 96 is fixed together with the housing of the permanent magnet motor 91.

[0024] As attached Figure 4 As shown, the heat pipe heat dissipation mechanism 10 includes a tubular heat sink and a heat sink 101. Several heat sinks 101 are installed on the top plate of the chassis 1, and a tubular heat sink is fixed on the heat sink 101.

[0025] The tubular heat sink includes a bottom heat sink copper plate 102, a U-shaped tube 103, and a top heat sink copper plate 104. The U-shaped tube 103 is fixed between the bottom heat sink copper plate 102 and the top heat sink copper plate 104. The bottom heat sink copper plate 102 is fixed to the heat sink 101. The structure of the tubular heat sink increases the heat dissipation area and improves the heat dissipation effect.

[0026] The inner wall of the U-shaped tube 103 is covered with thermally conductive hairs made of a non-metallic material. These hairs enhance the heat dissipation of the U-shaped tube 103.

[0027] The top plate of the chassis 1 has an opening 107, and an aluminum sealing plate 106 is fixed on the opening 107. Several mounting holes 105 are distributed on the aluminum sealing plate 106. The heat sink 101 is fixed in the mounting holes 105, and the bottom of the heat sink 101 is located inside the chassis 1.

[0028] The hot air inside the chassis 1 can directly contact the heat sink 101.

[0029] A protective cover 108 is fixed on the top plate of the chassis 1. The protective cover 108 is provided with heat dissipation holes, and the heat pipe heat dissipation mechanism 10 is located inside the protective cover 108.

[0030] When the switching device generates a large amount of heat during operation, the fan blades 94 of the bottom magnetic coupling heat dissipation mechanism 19 rotate, blowing hot air upwards. Once the hot air reaches the height of the upper magnetic coupling heat dissipation mechanism 21, the fan blades 94 of the latter rotate, blowing the hot air horizontally. This horizontally flowing hot air passes through the heat pipe cooling mechanism 10, which carries the heat out of the chassis 1, achieving rapid heat dissipation. Finally, the air, having had its heat carried away, sinks. This creates an air circulation within the chassis 1, which is then carried outside through the top heat pipe cooling mechanism 10.

Claims

1. A coupled heat dissipation type high-voltage gas-filled switchgear, comprising a chassis (1), a busbar expansion port (2), a disconnecting switch (3), an isolation mechanism (4), a circuit breaker (5), a solid-sealed pole (6), a connecting copper busbar (7), and an outgoing bushing (8), wherein the busbar expansion port (2), the disconnecting switch (3), and the outgoing bushing (8) are all installed inside the chassis (1), and the isolation mechanism (4) and the circuit breaker (5) are all installed outside the chassis (1), and the outgoing bushing (8), the solid-sealed pole (6), the disconnecting switch (3), and the busbar expansion port (2) are connected by the connecting copper busbar (7), characterized in that, The bottom of the chassis (1) is equipped with a magnetic coupling heat dissipation mechanism 1 (9) for blowing hot air from bottom to top, and the top of the chassis (1) is equipped with a heat pipe heat dissipation mechanism (10) for transferring heat inside the chassis (1) to the outside. The back plate of the chassis (1) is equipped with a magnetic coupling heat dissipation mechanism 2 (11) for blowing hot air horizontally. The magnetic coupling heat dissipation mechanism 2 (11) is located in the upper part of the chassis (1), and a heat dissipation plate (12) is fixed on the outside of the side plate of the chassis (1). The magnetic coupling heat dissipation mechanism 1 (9) and the magnetic coupling heat dissipation mechanism 2 (11) drive the air inside the chassis (1) to form a circulating airflow, which flows through the heat pipe heat dissipation mechanism (10) to achieve heat export.

2. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 1, characterized in that, Both the magnetic coupling heat dissipation mechanism one (9) and the magnetic coupling heat dissipation mechanism two (11) include a permanent magnet motor (91), an external coupling magnet (92), an internal coupling magnet (93), and a fan blade (94). The permanent magnet motor (91) and the external coupling magnet (92) are located outside the chassis (1), while the internal coupling magnet (93) and the fan blade (94) are located inside the chassis (1). The external coupling magnet (92) is fixed on the output shaft of the permanent magnet motor (91), and the housing of the permanent magnet motor (91) is fixed to the chassis. (1) On the outside of the base plate, the fan blade (94) is rotatably connected to the inside of the base plate of the chassis (1). The fan blade (94) is fixed together with the internal coupling magnet (93). The internal coupling magnet (93) is magnetically attracted to the external coupling magnet (92). Neither the external coupling magnet (92) nor the internal coupling magnet (93) is in contact with the base plate of the chassis (1). Several magnetic coupling heat dissipation mechanisms one (9) are installed on the base plate of the chassis (1), and several magnetic coupling heat dissipation mechanisms two (11) are installed on the back plate of the chassis (1).

3. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 2, characterized in that, The chassis (1) has a bracket (95) fixed on the inner side of the bottom plate. The fan blade (94) is rotatably connected to the bracket (95). The chassis (1) has a bracket (96) fixed on the outer side of the bottom plate. The bracket (96) is fixed together with the housing of the permanent magnet motor (91).

4. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 1, characterized in that, The heat pipe heat dissipation mechanism (10) includes a tubular heat sink and a heat sink (101). Several heat sinks (101) are installed on the top plate of the chassis (1), and a tubular heat sink is fixed on the heat sink (101).

5. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 4, characterized in that, The tubular heat sink includes a bottom heat sink copper plate (102), a U-shaped tube (103), and a top heat sink copper plate (104). The U-shaped tube (103) is fixed between the bottom heat sink copper plate (102) and the top heat sink copper plate (104), and the bottom heat sink copper plate (102) is fixed on the heat sink (101).

6. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 5, characterized in that, The inner wall of the U-shaped tube (103) is covered with heat-conducting hairs, which are made of non-metallic material.

7. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 4, characterized in that, The top plate of the chassis (1) is provided with an opening (107), an aluminum sealing plate (106) is fixed on the opening (107), and several mounting holes (105) are distributed on the aluminum sealing plate (106). The heat sink (101) is fixed in the mounting hole (105), and the bottom of the heat sink (101) is located inside the chassis (1).

8. The coupled heat dissipation type high-voltage gas-filled switchgear according to claim 4, characterized in that, A protective cover (108) is fixed on the top plate of the chassis (1). The protective cover (108) has heat dissipation holes, and the heat pipe heat dissipation mechanism (10) is located inside the protective cover (108).

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