Device for monitoring internal temperature of switch cabinet with intermittent circulation of thermal conductivity

Abstract

The utility model relates to a heat conduction intermittent circulation switch cabinet internal temperature monitoring device which comprises a cabinet body and a bent pipe arranged in the cabinet body, two ends of the bent pipe are respectively provided with a first valve and a second valve, the cabinet body is respectively provided with a circulation mechanism and a switch assembly, and the first valve and the second valve are respectively connected with the circulation mechanism. When the circulation mechanism operates, the switch assembly is matched with the circulation mechanism to adaptively open or close the first valve and the second valve, and medium oil absorbing the temperature in the cabinet body in the bent pipe can be intermittently and circularly guided out under the action of the circulation mechanism. The temperature monitoring assembly measures the temperature of the exported medium oil so as to monitor the temperature in the cabinet body, and in the operation process of the circulation mechanism, the switch assembly cooperates with the circulation mechanism to adaptively open or close the first valve and the second valve, so that the medium oil in the bent pipe can smoothly circulate.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinet monitoring, in particular to an internal temperature monitoring device for a switch cabinet with discontinuous circulation of heat conduction. Background Technique

[0002] The main function of the switch cabinet is to open, close, control and protect electrical equipment during the processes of power generation, transmission, distribution and power conversion in the power system. The components inside the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, instrument transformers and various protection devices, etc. There are many classification methods for switch cabinets. For example, they can be divided into withdrawable switch cabinets and fixed switch cabinets according to the installation method of the circuit breaker; or according to different cabinet structures, they can be divided into open switch cabinets, metal-enclosed switch cabinets and metal-enclosed armored switch cabinets; according to different voltage levels, they can be divided into high-voltage switch cabinets, medium-voltage switch cabinets and low-voltage switch cabinets, etc.

[0003] Since there are a large number of electronic components in the switch cabinet, more heat will be generated during use. If the temperature is not monitored and controlled, the high temperature is likely to cause equipment overheating and damage, affecting the use effect and reducing the service life. Therefore, it is necessary to monitor the temperature inside the switch cabinet to ensure the normal use of the switch cabinet. Content of the Utility Model

[0004] The purpose of the utility model is to provide an internal temperature monitoring device for a switch cabinet with discontinuous circulation of heat conduction to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An internal temperature monitoring device for a switch cabinet with discontinuous circulation of heat conduction includes a cabinet body and a bent pipe arranged inside the cabinet body. First valves and second valves are respectively arranged at both ends of the bent pipe. Valve shafts are rotatably arranged on both the first valves and the second valves, and gears are arranged on both of the valve shafts;

[0007] A circulation mechanism and a switch assembly are respectively arranged on the cabinet body. The first valves and the second valves are respectively connected to the circulation mechanism, and the switch assembly is respectively connected to the circulation mechanism and the two gears. When the circulation mechanism operates, the switch assembly will cooperate with the circulation mechanism to open or close the first valves and the second valves appropriately, so as to circulate the dielectric oil in the bent pipe;

[0008] A temperature monitoring component is also arranged on the cabinet body, and the temperature monitoring component can measure the temperature of the dielectric oil circulated out from the bent pipe.

[0009] As a further scheme of the utility model:

[0010] The circulation mechanism includes a first bracket arranged on the outer wall of the cabinet body and a circulation cylinder vertically fixed on the first bracket. A first one-way valve is arranged at the top end of the circulation cylinder, and the first one-way valve is connected to the first valve through an oil inlet pipe;

[0011] A second one-way valve is arranged on the upper side wall of the circulation cylinder, and the second one-way valve is connected to the second valve through an oil outlet pipe.

[0012] As a further scheme of the present invention:

[0013] A second bracket is arranged on the outer wall of the cabinet body. A sliding rod is slidably arranged on the second bracket. One end of the sliding rod penetrates through the bottom end of the circulation cylinder and extends into the interior thereof and is connected with a sealing ring.

[0014] As a further scheme of the present invention:

[0015] A third bracket is arranged on the outer wall of the cabinet body. A rotating shaft is rotatably arranged on the third bracket. A turntable is arranged at one end of the rotating shaft, and the other end of the rotating shaft is connected with the output end of a speed reducing motor arranged on the outer wall of the cabinet body;

[0016] Arc-shaped chutes and V-shaped chutes are respectively formed on the side wall of the turntable. The arc-shaped chutes and the V-shaped chutes are connected end to end with each other. A sliding column is rotatably arranged at the other end of the sliding rod, and one end of the sliding column is located inside the arc-shaped chute and is in sliding fit therewith.

[0017] As a further scheme of the present invention:

[0018] The switch assembly includes a slide rail arranged on the cabinet body and a toothed plate slidably matched with the slide rail. The toothed plate is respectively meshed with the two gears;

[0019] An L-shaped rod is arranged on the side wall of the toothed plate. One end of the L-shaped rod is connected with the outer wall of the sliding rod.

[0020] As a further scheme of the present invention:

[0021] A T-shaped slider is arranged on the side wall of the toothed plate. A T-shaped chute is formed on the side wall of the slide rail. The T-shaped slider is located inside the T-shaped chute and is in sliding fit therewith.

[0022] As a further scheme of the present invention:

[0023] The temperature monitoring assembly includes a fourth bracket arranged on the cabinet body and a temperature detector arranged on the fourth bracket. The temperature detector is sleeved on the outer wall of the oil outlet pipe.

[0024] Compared with the prior art, the beneficial effects of the utility model are as follows: under the action of the circulation mechanism, the medium oil that has absorbed the temperature inside the cabinet in the elbow can be intermittently circulated and exported. The temperature monitoring component will measure the temperature of the exported medium oil, so as to monitor the temperature inside the cabinet. During the operation of the circulation mechanism, the switch component will cooperate with the circulation mechanism to adaptively open or close the first valve and the second valve, so that the medium oil in the elbow can circulate smoothly. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure.

[0026] Figure 2 It is a sectional view of the cabinet structure.

[0027] Figure 3 It is a sectional view of the cabinet structure from another perspective.

[0028] Figure 4 It is a sectional view of the circulation cylinder structure with the cabinet removed.

[0029] Figure 5 It is Figure 4 The enlarged view of A in

[0030] Figure 6 It is Figure 4 The enlarged view of B in

[0031] Figure 7 It is a schematic diagram of another perspective of the sectional view of the circulation cylinder structure with the cabinet removed.

[0032] Figure 8 It is an exploded view of the slide rail and the toothed plate structure.

[0033] In the figure: 1. Cabinet; 2. Elbow; 3. First valve; 4. Second valve; 5. Valve shaft; 6. Gear; 7. First bracket; 8. Circulation cylinder; 9. First check valve; 10. Inlet oil pipe; 11. Second check valve; 12. Outlet oil pipe; 13. Second bracket; 14. Slide rod; 15. Sealing ring; 16. Third bracket; 17. Rotating shaft; 18. Turntable; 1801. Arc-shaped chute; 1802. V-shaped chute; 19. Slide column; 20. Reducing motor; 21. Slide rail; 22. Toothed plate; 23. L-shaped rod; 24. T-shaped slider; 25. T-shaped chute; 26. Fourth bracket; 27. Temperature detector. Detailed Embodiments

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] In addition, the elements in the present utility model are referred to as "fixed to" or "disposed on" another element, and it can be directly on another element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to another element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0036] Please refer to Figures 1 - 8 , in the embodiment of the present utility model, a temperature monitoring device for the interior of a switch cabinet with a discontinuous thermal conduction cycle includes a cabinet body 1 and a bent pipe 2 disposed inside the cabinet body 1. First valves 3 and second valves 4 are respectively disposed at both ends of the bent pipe 2. Valve shafts 5 are rotatably disposed on both the first valve 3 and the second valve 4, and gears 6 are disposed on both of the two valve shafts 5;

[0037] A circulation mechanism and a switch assembly are respectively disposed on the cabinet body 1. The first valve 3 and the second valve 4 are respectively connected to the circulation mechanism, and the switch assembly is respectively connected to the circulation mechanism and the two gears 6. When the circulation mechanism operates, the switch assembly will cooperate with the circulation mechanism to open or close the first valve 3 and the second valve 4 as appropriate, so as to circulate the dielectric oil in the bent pipe 2;

[0038] A temperature monitoring component is further disposed on the cabinet body 1, and the temperature monitoring component can measure the temperature of the dielectric oil circulated out from the bent pipe 2.

[0039] In this solution, under the action of the circulation mechanism, the dielectric oil that has absorbed the temperature inside the cabinet body 1 in the bent pipe 2 can be intermittently circulated and exported. The temperature monitoring component will measure the temperature of the exported dielectric oil, thereby monitoring the temperature inside the cabinet body 1. During the operation of the circulation mechanism, the switch assembly will cooperate with the circulation mechanism to open or close the first valve 3 and the second valve 4 as appropriate, so that the dielectric oil in the bent pipe 2 can circulate smoothly;

[0040] When the switch assembly operates, it can drive the two valve shafts 5 to rotate through the two gears 6, so as to open or close the first valve 3 and the second valve 4;

[0041] Since the circulation mechanism intermittently circulates and exports the dielectric oil in the elbow pipe 2, the dielectric oil in the part located in the cabinet body 1 can have sufficient time to exchange heat with the inside of the cabinet body 1, so that the data measured by the temperature monitoring component is more accurate.

[0042] As a further solution of the present invention, the circulation mechanism includes a first bracket 7 provided on the outer wall of the cabinet body 1 and a circulation cylinder 8 vertically fixed on the first bracket 7. A first one-way valve 9 is provided at the top of the circulation cylinder 8, and the first one-way valve 9 and the first valve 3 are connected by an oil inlet pipe 10;

[0043] A second one-way valve 11 is provided on the upper side wall of the upper end of the circulation cylinder 8, and the second one-way valve 11 and the second valve 4 are connected by an oil outlet pipe 12.

[0044] In this embodiment, due to the presence of the first one-way valve 9, its main function is to enable the dielectric oil inside the elbow pipe 2 to enter the circulation cylinder 8 through the oil inlet pipe 10, and it cannot flow back;

[0045] At the same time, the function of the second one-way valve 11 is to enable the dielectric oil inside the circulation cylinder 8 to enter the elbow pipe 2 through the oil outlet pipe 12, and it cannot flow back.

[0046] As a further solution of the present invention, a second bracket 13 is provided on the outer wall of the cabinet body 1. A slide bar 14 is slidably provided on the second bracket 13. One end of the slide bar 14 penetrates through the bottom end of the circulation cylinder 8 and extends into its interior and is connected to a sealing ring 15.

[0047] In this embodiment, when the slide bar 14 moves downward in the circulation cylinder 8, the sealing ring 15 will move downward following the slide bar 14. During this process, the pressure at the top of the circulation cylinder 8 will gradually decrease. Also, due to the functions of the first one-way valve 9 and the second one-way valve 11, the dielectric oil inside the elbow pipe 2 will enter the interior of the circulation cylinder 8 through the oil inlet pipe 10;

[0048] When the slide bar 14 drives the sealing ring 15 to move upward in the circulation cylinder 8, the pressure at the top of the circulation cylinder 8 will gradually increase. Similarly, due to the functions of the first one-way valve 9 and the second one-way valve 11, the dielectric oil inside the circulation cylinder 8 will enter the interior of the elbow pipe 2 through the oil outlet pipe 12.

[0049] As a further solution of the present invention, a third bracket 16 is provided on the outer wall of the cabinet body 1. A rotating shaft 17 is rotatably provided on the third bracket 16. A turntable 18 is provided at one end of the rotating shaft 17, and the other end of the rotating shaft 17 is connected to the output end of a reduction motor 20 provided on the outer wall of the cabinet body 1;

[0050] The side walls of the turntable 18 are respectively provided with an arc-shaped chute 1801 and a V-shaped chute 1802. The arc-shaped chute 1801 and the V-shaped chute 1802 are connected end to end. The other end of the sliding rod 14 is rotatably provided with a sliding column 19, and one end of the sliding column 19 is located inside the arc-shaped chute 1801 and is in sliding fit with each other.

[0051] In this embodiment, first start the reduction motor 20. The output end of the reduction motor 20 will drive the turntable 18 to rotate through the rotating shaft 17. During the rotation of the turntable 18, the arc-shaped chute 1801 and the V-shaped chute 1802 will rotate synchronously.

[0052] When the sliding column 19 rotatably provided at the other end of the sliding rod 14 is located in the arc-shaped chute 1801, the sliding rod 14 will remain stationary.

[0053] When the sliding column 19 enters the V-shaped chute 1802 from the arc-shaped chute 1801 and then returns to the arc-shaped chute 1801, the sliding column 19 will drive the sliding rod 14 to complete a vertical reciprocating movement under the action of the V-shaped chute 1802 and under the limit of the second bracket 13.

[0054] As a further solution of the present invention, the switch assembly includes a slide rail 21 provided on the cabinet 1 and a toothed plate 22 that is slidably engaged with the slide rail 21. The toothed plate 22 is respectively engaged with the two gears 6.

[0055] An L-shaped rod 23 is provided on the side wall of the toothed plate 22, and one end of the L-shaped rod 23 is connected to the outer wall of the sliding rod 14.

[0056] In this embodiment, since the toothed plate 22 and the sliding rod 14 are connected by the L-shaped rod 23, when the sliding rod 14 moves vertically downward, the toothed plate 22 will move downward accordingly. Also, because the toothed plate 22 is respectively engaged with the two gears 6, therefore, the two gears 6 will rotate synchronously under the action of the toothed plate 22.

[0057] Among them, the first valve 3 is set such that when the toothed plate 22 moves downward, the rotating gear 6 will drive the first valve 3 to gradually open, facilitating the smooth passage of the dielectric oil inside the elbow 2 through the oil inlet pipe 10 into the inside of the circulation cylinder 8, and vice versa.

[0058] The second valve 4 is set such that when the toothed plate 22 moves upward, the rotating gear 6 will drive the second valve 4 to gradually open, facilitating the smooth passage of the dielectric oil inside the circulation cylinder 8 through the oil outlet pipe 12 into the inside of the elbow 2, and vice versa.

[0059] As a further solution of the present utility model, a T-shaped slider 24 is provided on the side wall of the toothed plate 22, a T-shaped chute 25 is opened on the side wall of the slide rail 21, and the T-shaped slider 24 is located inside the T-shaped chute 25 and is slidably matched with each other.

[0060] In this embodiment, due to the sliding fit between the T-shaped slider 24 and the T-shaped chute 25, the toothed plate 22 is slidably arranged on the slide rail 21.

[0061] As a further solution of the present utility model, the temperature monitoring component includes a fourth bracket 26 provided on the cabinet 1 and a temperature detector 27 provided on the fourth bracket 26, and the temperature detector 27 is sleeved on the outer wall of the oil outlet pipe 12.

[0062] In this embodiment, the dielectric oil that absorbs the internal temperature of the cabinet 1 in the elbow pipe 2 will flow to the oil outlet pipe 12 under the action of the circulation mechanism, and the temperature detector 27 can measure the temperature of the dielectric oil at the oil outlet pipe 12, so as to monitor the internal temperature of the cabinet 1.

[0063] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0064] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A switch cabinet internal temperature monitoring device with thermal conductivity intermittent cycle, characterized in that: It comprises a cabinet (1) and a curved pipe (2) arranged inside the cabinet (1), a first valve (3) and a second valve (4) being respectively arranged at both ends of the curved pipe (2), a valve shaft (5) being rotatably arranged on the first valve (3) and the second valve (4), and a gear (6) being arranged on the two valve shafts (5); The cabinet (1) is provided with a circulation mechanism and a switch assembly, respectively. The first valve (3) and the second valve (4) are respectively connected to the circulation mechanism, and the switch assembly is respectively connected to the circulation mechanism and the two gears (6). When the circulation mechanism is in operation, the switch assembly will cooperate with the circulation mechanism to adaptably open or close the first valve (3) and the second valve (4), thereby circulating the medium oil in the elbow (2); The cabinet (1) is also provided with a temperature monitoring component, and the temperature monitoring component can measure the temperature of the medium oil circulating out of the elbow (2).

2. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 1 is characterized in that: The circulation mechanism comprises a first bracket (7) arranged on the outer wall of the cabinet (1) and a circulation cylinder (8) vertically fixed on the first bracket (7); a first one-way valve (9) is arranged at the top end of the circulation cylinder (8); the first one-way valve (9) and the first valve (3) are connected via an oil inlet pipe (10); A second one-way valve (11) is provided on the upper side wall of the circulation cylinder (8), and the second one-way valve (11) and the second valve (4) are connected via an oil outlet pipe (12).

3. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 2 is characterized in that: A second bracket (13) is provided on the outer wall of the cabinet (1), a sliding rod (14) is slidably provided on the second bracket (13), one end of the sliding rod (14) passes through the bottom end of the circulation cylinder (8) and extends to the inside thereof and is connected to a sealing ring (15).

4. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 3 is characterized in that: The outer wall of the cabinet (1) is provided with a third bracket (16), a rotating shaft (17) is rotatably provided on the third bracket (16), a rotating disk (18) is provided at one end of the rotating shaft (17), and the other end of the rotating shaft (17) is connected to the output end of a reduction motor (20) provided on the outer wall of the cabinet (1); The side walls of the turntable (18) are respectively provided with an arc-shaped slide groove (1801) and a V-shaped slide groove (1802), the arc-shaped slide groove (1801) and the V-shaped slide groove (1802) are connected to each other end to end, and a slide column (19) is rotatably provided at the other end of the slide rod (14), one end of the slide column (19) is located inside the arc-shaped slide groove (1801) and slides with each other.

5. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 3 is characterized in that: The switch assembly comprises a slide rail (21) arranged on the cabinet (1) and a toothed plate (22) slidably engaged with the slide rail (21), wherein the toothed plate (22) is respectively engaged with the two gears (6); An L-shaped rod (23) is provided on the side wall of the tooth plate (22), and one end of the L-shaped rod (23) is connected to the outer wall of the sliding rod (14).

6. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 5 is characterized in that: The side wall of the toothed plate (22) is provided with a T-shaped sliding block (24), the side wall of the slide rail (21) is provided with a T-shaped sliding groove (25), and the T-shaped sliding block (24) is located inside the T-shaped sliding groove (25) and slides in cooperation with each other.

7. The internal temperature monitoring device of a switch cabinet with thermal conductivity intermittent cycle according to claim 2 is characterized in that: The temperature monitoring component comprises a fourth bracket (26) arranged on the cabinet (1) and a temperature detector (27) arranged on the fourth bracket (26); the temperature detector (27) is sleeved on the outer wall of the oil outlet pipe (12).

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