On-line temperature measuring device for switch cabinet optical fiber

Abstract

The invention provides an on-line temperature measuring device for switch cabinet optical fibers, which belongs to the technical field of temperature measurement and comprises a cabinet body, an instrument chamber and a bus chamber are fixedly mounted on the lower end surface of an inner cavity of the cabinet body, a sliding screw rod is fixedly mounted at the upper end of the bus chamber, an optical fiber temperature measuring instrument is sleeved outside the sliding screw rod, and a heat dissipation assembly is mounted on the cabinet body. The problems that dust and moisture can enter an existing online temperature measuring device for the switch cabinet optical fiber, the safety of equipment in a switch cabinet cannot be guaranteed, the heat dissipation effect is weak, and then timely and rapid heat dissipation cannot be guaranteed are solved.

Description

Technical Field

[0001] This invention belongs to the field of temperature measurement technology, specifically relating to an online temperature measurement device for optical fibers in switchgear. Background Technology

[0002] Switchgear is an indispensable and crucial piece of equipment in power systems. Its main function is to open, close, control, and protect electrical equipment during power generation, transmission, distribution, and energy conversion. The condition of the switchgear directly affects the reliable operation of the power system. Over time, overload and insulation aging can lead to localized overheating within the switchgear. Because all compartments in the switchgear are enclosed, heat accumulates and, once it reaches a certain level, can cause excessively high temperatures at contacts or connection points, even resulting in fire and significant damage to equipment, property, and personnel. Therefore, temperature detection devices are installed inside switchgear, with contact temperature measurement being the most common method. However, temperature probes and contacts are prone to detachment and insecure fixing. Even when securely fixed, only one type of probe can be used with one type of contact, resulting in a very narrow application range. Furthermore, when temperature-sensing optical fibers are laid out inside the switchgear, they are highly susceptible to the effects of high temperatures, high pressures, and high magnetic fields within the cabinet. Contact with other components can also significantly affect the data transmitted by the temperature-sensing optical fibers.

[0003] Existing technology CN221929073U discloses a novel fiber optic online temperature measurement device for switchgear. During heat dissipation, this device uses a cooling fan to circulate heat within the internal chamber. The high heat generated inside the switchgear body is released through the upper heat dissipation window, while external, constant-temperature air enters through the heat dissipation window located on the second dust filter, equalizing the heat of the internal and external air and thus cooling the interior. However, this heat dissipation method allows dust and moisture to enter, compromising the safety of the equipment inside the switchgear. Furthermore, this method of drawing in external air via a cooling fan has a weak cooling effect and cannot guarantee timely and rapid heat dissipation. Summary of the Invention

[0004] This invention provides an online temperature measurement device for optical fiber in switchgear, which aims to solve the problems of existing online temperature measurement devices for optical fiber in switchgear not only allowing dust and moisture to enter, thus failing to guarantee the safety of the internal equipment of the switchgear, but also having weak heat dissipation effect, thus failing to guarantee timely and rapid heat dissipation.

[0005] This invention provides an online temperature measurement device for optical fiber in switch cabinets, comprising a cabinet, an instrument compartment and a busbar compartment fixedly installed on the lower surface of the inner cavity of the cabinet, a sliding screw fixedly installed on the upper end of the busbar compartment, an optical fiber temperature measuring instrument sleeved on the sliding screw, and a heat dissipation component installed on the cabinet.

[0006] The heat dissipation assembly includes an outer cover fixed to the back of the cabinet. One side of the outer cover is connected to an inlet channel A, and the other side is connected to an outlet channel A. One side of the upper end of the outer cover is connected to an inlet channel B, and the other side of the lower end is connected to an outlet channel B. Baffle plates are fixed to both sides of the inner side of the outer cover, and heat transfer fins are fixed to both vertical sides of the inner side of the outer cover. The upper and lower heat transfer fins are staggered. The lower end of the upper heat transfer fin is separated from the lower end of the inner surface of the outer cover, and the upper end of the lower heat transfer fin is separated from the upper end of the inner surface of the outer cover. It is arched, and the arched surface of the heat transfer plate is fixed to the inner surface of the outer cover. A cover plate is installed on one side of the outer cover. The heat transfer plate, the conduction channel and the baffle plate are all made of aluminum. The spatial structure formed by the inner surface of the outer cover and several heat transfer plates is serpentine. Several conduction channels are fixed between a pair of baffle plates. The conduction channels pass through the heat transfer plate. Both the inlet channel A and the outlet channel A are connected to the conduction channels. A guiding unit is installed on the surface of the heat transfer plate. A constraint unit A is installed on the heat transfer plate. An inlet unit is installed on the guiding unit. A constraint unit B is installed on the inlet unit.

[0007] Furthermore, the guiding unit includes a circular opening, and circular openings are reserved on the heat transfer plates on the same side. A rotating port A is reserved on the circumference of the circular opening. A rotating rod A is rotated into the rotating port A. A steel ball is fixed to the other side of the rotating rod A. The surface of the steel ball is in contact with and slidably connected to the wall of the circular opening. A cylindrical channel is fixed to the steel ball. One side of the cylindrical channel is connected to a bent channel. A check switch is installed in the bent channel. The direction of the check switch is from the inside of the bent channel to the outside of the bent channel.

[0008] Furthermore, the access unit includes a cover. The cylindrical channel is connected to the cover on the side farther from the bent channel. A rotating port B is reserved on one side of the cover. A rotating rod B is screwed onto the side wall of the rotating port B. A constraint port is reserved on the circumference of the rotating rod B. A rotating cover is installed on one side of the rotating rod B. The rotating cover is located in the cover. A groove A is reserved on the side of the rotating cover facing the cylindrical channel. The radial span of the cylindrical channel is smaller than the lateral span of the groove A. The side wall of the rotating cover farther from the cylindrical channel is connected to a rotation channel. A groove B is reserved on the side wall of the cover farther from the cylindrical channel. The rotation channel is located in the groove B and has a Y-shaped structure.

[0009] Furthermore, the cylindrical channel is located on both sides of the heat transfer plate, and the bent channel is bent.

[0010] Furthermore, the constraint unit A includes a connecting platform A, a lead screw A, and a fastening platform. A pair of connecting platforms A are fixedly connected to the surface of the heat transfer plate, located on both sides of the vertical cylindrical channel. The lead screw A is threaded onto the connecting platform A. A fastening platform is installed on the side of the lead screw A closest to the cylindrical channel. The cylindrical channel is located between the pair of fastening platforms.

[0011] Furthermore, constraint unit B includes connecting platform C, connecting platform B is fixedly connected to the surface of the cover, connecting platform C is fixedly connected to the surface of the cover, and connecting platform C is located below connecting platform B.

[0012] Furthermore, the connecting platform C is connected to the lead screw B, the rotating rod B is located below the lead screw B, the lead screw B passes through the connecting platform B, the lead screw B extends out of one side of the connecting platform B and is fixed to a frustum, a constraint plate is fixed to the circumference of the lead screw B, the frustum is located at the top of the connecting platform B, and the constraint plate is located between the connecting platform B and the connecting platform C.

[0013] Furthermore, a chiller unit is installed on the side of the outer casing. The inlet pipe is connected to one end of the chiller unit via the inlet channel A, and the outlet pipe is connected to the other end of the chiller unit via the outlet channel A.

[0014] Furthermore, the other end of access channel B is connected to an exhaust pipe, the other end of which is connected to a fan, the lower end of which is connected to an extraction pipe, the lower end of which extends into the lower part of the cabinet and is connected to a lower rectangular tube, the inner side of which has several spray holes, and the other end of outflow channel B extends into the upper part of the cabinet and is connected to an upper rectangular tube, the inner side of which has several spray holes.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention forms a closed circulation space with the heat dissipation component and the cabinet. The heat dissipation component draws away the hot air in the cabinet and performs cooling. The cooled air is then transported back into the cabinet, which realizes rapid cooling of the device, ensures the normal operation of electronic components in the switch cabinet, and also prevents dust and moisture from entering the switch cabinet, thus improving the protection of electronic components in the switch cabinet.

[0017] 2. In this invention, when the hot air moves in a serpentine pattern on both sides of the heat transfer plate, the hot air on one side of the heat transfer plate passes through the inlet unit, moves into the cylindrical channel, then moves into the bend channel, and then moves from the bend channel to the other side of the heat transfer plate. The hot air on both sides of the heat transfer plate moves in opposite directions, causing the hot air moving out of the bend channel to collide with the hot air moving on the other side of the heat transfer plate. This collision disturbs the air in the two directions, allowing the hot air between the heat transfer plate and the conduction channel to mix with each other, thereby enhancing the conduction effect of the hot air.

[0018] Rotate the opening of the bend channel so that it faces the direction of hot air inflow on the other side of the heat transfer plate. With the opening of the bend channel tilted, it is not subjected to direct impact from the hot air on the other side of the heat transfer plate, thus preventing the hot air in the bend channel from flowing out slowly. The check switch can prevent the hot air on the other side of the heat transfer plate from returning to the bend channel. The bend channel is pulled by the cylindrical channel to rotate the steel ball, and the steel ball pulls the other side of the cylindrical channel to rotate. Then, rotate the lead screw A to a position close to the cylindrical channel, so that the fastening table can fasten the two vertical walls of the cylindrical channel, and then stop the cylindrical channel, thereby achieving the purpose of stabilizing and fastening the bend channel.

[0019] The rotating channel is pulled to rotate, allowing it to pull the rotating cover to rotate around the rotating rod B. The rotating rod B pulls the constraint port to rotate, and the rotating cover pulls the groove A to rotate. The radial span of the cylindrical channel is smaller than the lateral span of the groove A, and one side of the cylindrical channel is still in the groove A. The rotating channel is directed towards the hot air direction on one side of the heat transfer plate. Then, the lead screw B is rotated downwards, allowing it to engage with the corresponding constraint port. Finally, the rotating rod B is tightened to ensure the stability and tightness of the rotating channel.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the rear view structure according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the cabinet according to an embodiment of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the heat dissipation component according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer cover according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic cross-sectional view of the heat dissipation component according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the heat transfer plate according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the circular opening structure according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the steel ball structure according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the rotating channel structure according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of the cross-sectional structure of lead screw B according to an embodiment of the present invention;

[0032] Figure 11 This is a bottom view of the cross-sectional structure of the cover according to an embodiment of the present invention;

[0033] Figure 12 This is an embodiment of the present invention. Figure 4 A magnified structural diagram at point M;

[0034] Figure 13 This is an embodiment of the present invention. Figure 5 A magnified structural diagram at point N;

[0035] Attached reference numerals: 1. Cabinet; 2. Busbar compartment; 3. Sliding screw; 4. Fiber optic thermometer; 5. Instrument compartment; 6. Heat dissipation assembly; 61. Outer cover; 62. Inlet channel A; 63. Outlet channel A; 64. Inlet channel B; 65. Outlet channel B; 66. Barrier plate; 67. Conduction channel; 68. Constraint plate; 69. Heat transfer plate; 610. Cover plate; 611. Guide unit; 6111. Circular opening; 6112. Rotating opening A; 6113. Steel ball; 6114. Rotating rod A; 6115. Cylindrical channel; 6116. Bent channel; 6117. Check switch; 612. Constraint unit A; 6121. Connection Table A; 6122, Lead Screw A; 6123, Fastening Table; 613, Connection Unit; 6131, Cover; 6132, Rotating Cover; 6133, Groove A; 6134, Rotating Rod B; 6135, Constraint Port; 6136, Rotation Channel; 6137, Rotating Port B; 6138, Groove B; 614, Constraint Unit B; 6141, Lead Screw B; 6142, Connecting Table B; 6143, Connecting Table C; 615, Frustum; 616, Exhaust Pipe; 617, Fan; 618, Extraction Pipe; 619, Lower Rectangular Tube; 620, Upper Rectangular Tube; 621, Water Inlet Pipe; 622, Water Outlet Pipe; 623, Chiller Unit. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Reference Figure 1 This invention proposes an online temperature measurement device for optical fiber in switchgear, comprising a cabinet 1. An instrument chamber 5 and a busbar chamber 2 are fixedly installed on the lower surface of the inner cavity of the cabinet 1. Multiple connecting busbar bases are installed in the busbar chamber 2, and the busbar chamber 2 is connected to the grounding switch through a cable entry and exit line device. A sliding screw 3 is fixedly installed on the upper end of the busbar chamber 2, and an optical fiber thermometer 4 is sleeved on the sliding screw 3. A heat dissipation assembly 6 is installed on the cabinet 1.

[0038] The heat dissipation component 6 and the cabinet 1 form a closed circulation space. The heat dissipation component 6 draws away the hot air in the cabinet 1 and performs cooling. The cooled air is then transported back into the cabinet 1, which realizes rapid cooling of the device, ensures the normal operation of electronic components in the switch cabinet, and also prevents dust and moisture from entering the switch cabinet, thus improving the protection of electronic components in the switch cabinet.

[0039] Reference Figures 3-13The heat dissipation assembly 6 includes an outer cover 61 fixed to the back of the cabinet 1. One side of the outer cover 61 is connected to an inlet channel A62, and the other side is connected to an outlet channel A63. The upper side of the outer cover 61 is connected to an inlet channel B64, and the lower side is connected to an outlet channel B65. Two baffle plates 66 are fixed to the inside of the outer cover 61. Two vertical heat transfer plates 69 are fixed to the inside of the outer cover 61. The upper and lower heat transfer plates 69 are staggered. The lower end of the upper heat transfer plate 69 is separated from the lower end of the inner surface of the outer cover 61, and the upper end of the lower heat transfer plate 69 is separated from the upper end of the inner surface of the outer cover 61. The heat transfer plates 69 are arched and... The arched surface of the heat transfer plate 69 is fixedly connected to the inner surface of the outer cover 61. A cover plate 610 is installed on one side of the outer cover 61. The heat transfer plate 69, the conduction channel 67 and the baffle plate 66 are all made of aluminum. The spatial structure formed by the inner surface of the outer cover 61 and several heat transfer plates 69 is serpentine. Several conduction channels 67 are fixedly connected between a pair of baffle plates 66. The conduction channel 67 passes through the heat transfer plate 69. The inlet channel A62 and the outlet channel A63 are both connected to the conduction channel 67. A guide unit 611 is installed on the surface of the heat transfer plate 69. A constraint unit A612 is installed on the heat transfer plate 69. An inlet unit 613 is installed on the guide unit 611. A constraint unit B614 is installed on the inlet unit 613.

[0040] Reference Figures 4-13 The guiding unit 611 includes a circular opening 6111. Circular openings 6111 are reserved on the heat transfer plates 69 on the same side. A rotating opening A6112 is reserved on the circumference of the circular opening 6111. A rotating rod A6114 is rotated into the rotating opening A6112. A steel ball 6113 is fixed to the other side of the rotating rod A6114. The surface of the steel ball 6113 is in contact with and slidably connected to the wall of the circular opening 6111. A cylindrical channel 6115 is fixed to the steel ball 6113. One side of the cylindrical channel 6115 is connected to a bent channel 6116. A check switch 6117 is installed in the bent channel 6116. The direction of the check switch 6117 is from the inside of the bent channel 6116 to the outside of the bent channel 6116. The two sides of the cylindrical channel 6115 are located on both sides of the heat transfer plate 69. The bent channel 6116 is bent.

[0041] Reference Figure 12 and Figure 13 The constraint unit A612 includes a connecting platform A6121, a lead screw A6122, and a fastening platform 6123. A pair of connecting platforms A6121 are fixedly connected to the surface of the heat transfer plate 69 on both sides of the cylindrical channel 6115. The lead screw A6122 is threaded onto the connecting platform A6121. The fastening platform 6123 is installed on the side of the lead screw A6122 near the cylindrical channel 6115. The cylindrical channel 6115 is located between the pair of fastening platforms 6123.

[0042] Cold water medium flows through inlet channel A62 into conduction channel 67 and is released through outlet channel A63. Hot air flows through inlet channel B64 into outer cover 61, through the serpentine space formed by the inner surface of outer cover 61 and several heat transfer plates 69, and then is released through outlet channel B65. The heated gas drawn in is discharged through heat transfer plates 69 and conduction channel 67, thereby achieving the cooling function.

[0043] Rotate the opening of the bend in the channel 6116 so that hot air flows in from the other side of the heat transfer plate 69, so that the opening of the bend in the channel 6116 is tilted (see reference). Figure 13 This design prevents the opening of the bent channel 6116 from being directly impacted by the hot air from the other side of the heat transfer plate 69, thus preventing the hot air in the bent channel 6116 from slowly flowing out. The check switch 6117 prevents the hot air from the other side of the heat transfer plate 69 from returning to the bent channel 6116. The bent channel 6116 is rotated by the steel ball 6113 pulled by the cylindrical channel 6115. The steel ball 6113 pulls the other side of the cylindrical channel 6115 to rotate. Then, the lead screws A6122 are rotated towards the position close to the cylindrical channel 6115, so that the fastening table 6123 can fasten the two vertical walls of the cylindrical channel 6115, and then stop the cylindrical channel 6115, thereby achieving the purpose of firmly fastening the bent channel 6116.

[0044] When hot air moves in a serpentine pattern on both sides of the heat transfer plate 69, the hot air on one side of the heat transfer plate 69 passes through the inlet unit 613 and moves into the cylindrical channel 6115, then moves to the bend channel 6116, and then moves from the bend channel 6116 to the other side of the heat transfer plate 69. The hot air on both sides of the heat transfer plate 69 moves in opposite directions, causing the hot air moving out of the bend channel 6116 to collide with the hot air moving on the other side of the heat transfer plate 69. This collision and disturbance of the two directions of air allows the hot air between the heat transfer plate 69 and the conduction channel 67 to mix with each other, thereby enhancing the conduction of the hot air.

[0045] Reference Figures 4-13The access unit 613 includes a cover 6131. ​​A cylindrical channel 6115, located furthest from the bent channel 6116, is connected to the cover 6131. ​​One side of the cover 6131 has a pre-drilled rotating opening B6137. A rotating rod B6134 is screwed onto the side wall of the rotating opening B6137. A constraint opening 6135 is pre-drilled on the circumference of the rotating rod B6134. A rotating cover 6132 is installed on one side of the rotating rod B6134, and the rotating cover 6132 is located within the cover 6131. A groove A6133 is reserved on one side of the cylindrical channel 6115. The radial span of the cylindrical channel 6115 is smaller than the lateral span of the groove A6133. The side wall of the rotating cover 6132 that is farther from the cylindrical channel 6115 is connected to the rotating channel 6136. A groove B6138 is reserved on the side wall of the cover 6131 that is farther from the cylindrical channel 6115. The rotating channel 6136 is located in the groove B6138 and has a Y-shaped structure.

[0046] Reference Figure 10 The constraint unit B614 includes a connecting platform C6143. The connecting platform B6142 is fixedly connected to the surface of the cover 6131, and the connecting platform C6143 is also fixedly connected to the surface of the cover 6131. ​​The connecting platform C6143 is located below the connecting platform B6142. The connecting platform C6143 is connected to the lead screw B6141. The rotating rod B6134 is located below the lead screw B6141. The lead screw B6141 passes through the connecting platform B6142. The lead screw B6141 extends out of one side of the connecting platform B6142 and is fixedly connected to a frustum 615. A constraint piece 68 is fixedly connected to the circumference of the lead screw B6141. The frustum 615 is located at the top of the connecting platform B6142, and the constraint piece 68 is located between the connecting platform B6142 and the connecting platform C6143.

[0047] The rotation of the cylindrical channel 6115 causes the shroud 6131 to rotate, which in turn causes the rotating shroud 6132 to rotate around the rotating rod A6114 via the rotating rod B6134. The rotating shroud 6132 then causes the rotating channel 6136 to rotate around the rotating rod A6114, preventing the rotating channel 6136 from facing the hot air direction on the heat transfer plate 69. Therefore, after adjusting the skewness of the bent channel 6116, the rotating channel 6136 is then rotated, allowing it to cause the rotating shroud 6132 to rotate around the rotating rod B6134. The rotating rod B6134 then causes the constraint port 6135 to rotate, and the rotating shroud 6132 causes the groove A6133 to rotate. The radial span of the cylindrical channel 6115 is smaller than that of the groove A6133. With a lateral span, one side of the cylindrical channel 6115 remains in the groove A6133, allowing the rotating channel 6136 to face the direction of hot air on the side of the heat transfer plate 69. Then, the lead screw B6141 is rotated downwards, allowing it to engage with the corresponding constraint port 6135. Subsequently, the rotating rod B6134 is tightened to ensure the stability and tightness of the rotating channel 6136. The frustum 615 and the constraint plate 68 prevent the lead screw B6141 from moving out of the connecting platform C6143, allowing the hot air on the side of the heat transfer plate 69 to move directly into the rotating channel 6136, reducing the resistance encountered by the hot air moving into the rotating channel 6136. The hot air moves into the rotating cover 6132, passes through the groove A6133, and then moves into the cylindrical channel 6115.

[0048] Reference Figure 1 A chiller unit 623 is installed on the side of the outer cover 61. The inlet pipe 621 is connected to one end of the inlet channel A62 and the outlet pipe 622 is connected to the other end of the outlet channel A63. The chiller unit 623 is existing technology and will not be described in detail here.

[0049] The water chiller 623 cools the hot water after it has absorbed heat, and then discharges the cooled water into the conduction channel 67 inside the outer casing 61. This cools the conduction channel 67 after it has absorbed heat, thereby ensuring the cooling function of the device.

[0050] Reference Figure 1 and Figure 2 The other end of the access channel B64 is connected to the exhaust pipe 616, the other end of the exhaust pipe 616 is connected to the fan 617, the lower end of the fan 617 is connected to the exhaust pipe 618, the lower end of the exhaust pipe 618 extends into the lower end of the cabinet 1 and is connected to the lower rectangular tube 619, and several spray holes are reserved on the inner side of the lower rectangular tube 619. The other end of the outflow channel B65 extends into the upper end of the cabinet 1 and is connected to the upper rectangular tube 620, and several spray holes are reserved on the inner side of the upper rectangular tube 620.

[0051] During heat dissipation, the fan 617 operates, drawing hot air from cabinet 1 into exhaust pipe 618 via lower rectangular pipe 619. The hot air then moves through exhaust pipe 618 to exhaust pipe 616, where it is sent to outer cover 61 via inlet channel B64. After cooling in outer cover 61, the hot air exits through outlet channel B65, which sprays cold air through upper rectangular pipe 620 into the interior of cabinet 1. The cold air flows from top to bottom, and the circulating air cools the interior of the switch cabinet, ensuring heat dissipation while preventing external moisture from entering, thus ensuring the normal operation of the electronic components inside the switch cabinet.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An online temperature measurement device for optical fiber in switchgear, comprising a cabinet, an instrument compartment and a busbar compartment fixedly installed on the lower surface of the cabinet's internal cavity, a sliding screw fixedly installed on the upper end of the busbar compartment, and an optical fiber temperature measuring instrument sleeved on the sliding screw, characterized in that, The cabinet is equipped with heat dissipation components; The heat dissipation assembly includes an outer cover fixed to the back of the cabinet. One side of the outer cover is connected to an inlet channel A, and the other side is connected to an outlet channel A. One side of the upper end of the outer cover is connected to an inlet channel B, and the other side of the lower end is connected to an outlet channel B. Baffle plates are fixed to both sides of the inner side of the outer cover, and heat transfer fins are fixed to both vertical sides of the inner side of the outer cover. The upper and lower heat transfer fins are staggered. The lower end of the upper heat transfer fin is separated from the lower end of the inner surface of the outer cover, and the upper end of the lower heat transfer fin is separated from the upper end of the inner surface of the outer cover. It is arched, and the arched surface of the heat transfer plate is fixed to the inner surface of the outer cover. A cover plate is installed on one side of the outer cover. The heat transfer plate, the conduction channel and the baffle plate are all made of aluminum. The spatial structure formed by the inner surface of the outer cover and several heat transfer plates is serpentine. Several conduction channels are fixed between a pair of baffle plates. The conduction channels pass through the heat transfer plate. Both the inlet channel A and the outlet channel A are connected to the conduction channels. A guiding unit is installed on the surface of the heat transfer plate. A constraint unit A is installed on the heat transfer plate. An inlet unit is installed on the guiding unit. A constraint unit B is installed on the inlet unit.

2. The online temperature measurement device for optical fiber in switchgear according to claim 1, characterized in that: The guiding unit includes a circular opening, and circular openings are reserved on the heat transfer plates on the same side. A rotating port A is reserved on the circumference of the circular opening. A rotating rod A is rotated into the rotating port A. A steel ball is fixed to the other side of the rotating rod A. The surface of the steel ball is in contact with and slidably connected to the wall of the circular opening. A cylindrical channel is fixed to the steel ball. One side of the cylindrical channel is connected to a bent channel. A check switch is installed in the bent channel. The direction of the check switch is from the inside of the bent channel to the outside of the bent channel.

3. The online temperature measurement device for optical fiber in switchgear according to claim 2, characterized in that: The access unit includes a cover. The cylindrical channel is connected to the cover on the side farther from the curved channel. A rotating port B is reserved on one side of the cover. A rotating rod B is screwed onto the side wall of the rotating port B. A constraint port is reserved on the circumference of the rotating rod B. A rotating cover is installed on one side of the rotating rod B. The rotating cover is located in the cover. A groove A is reserved on the side of the rotating cover facing the cylindrical channel. The radial span of the cylindrical channel is smaller than the lateral span of the groove A. The side wall of the rotating cover farther from the cylindrical channel is connected to a rotation channel. A groove B is reserved on the side wall of the cover farther from the cylindrical channel. The rotation channel is located in the groove B and has a Y-shaped structure.

4. The online temperature measurement device for optical fiber in switchgear according to claim 3, characterized in that: The cylindrical channel is located on both sides of the heat transfer plate, and the bent channel is bent.

5. The online temperature measurement device for optical fiber in switchgear according to claim 1, characterized in that: The constraint unit A includes a connecting platform A, a lead screw A, and a fastening platform. A pair of connecting platforms A are fixed to the surface of the heat transfer plate, located on both sides of the vertical cylindrical channel. The lead screw A is threaded onto the connecting platform A. A fastening platform is installed on the side of the lead screw A closest to the cylindrical channel. The cylindrical channel is located between the pair of fastening platforms.

6. The online temperature measurement device for optical fiber in switchgear according to claim 1, characterized in that: Constraint unit B includes connecting platform C. Connecting platform B is fixedly connected to the surface of the cover, and connecting platform C is fixedly connected to the surface of the cover. Connecting platform C is located below connecting platform B.

7. The online temperature measurement device for optical fiber in switchgear according to claim 6, characterized in that: Connecting platform C is connected to lead screw B. Rotating rod B is located below lead screw B. Lead screw B passes through connecting platform B and extends out of one side of connecting platform B and is fixed to a frustum. A constraint plate is fixed to the circumference of lead screw B. The frustum is located at the top of connecting platform B, and the constraint plate is located between connecting platform B and connecting platform C.

8. The online temperature measurement device for optical fiber in switchgear according to claim 1, characterized in that: A chiller unit is installed on the side of the outer casing. The inlet pipe is connected to one end of the chiller unit via the inlet channel A, and the outlet pipe is connected to the other end of the chiller unit via the outlet channel A.

9. The online temperature measurement device for optical fiber in switchgear according to claim 1, characterized in that: The other end of access channel B is connected to an exhaust pipe, the other end of which is connected to a fan. The lower end of the fan is connected to an extraction pipe, the lower end of which extends into the lower part of the cabinet and connects to a lower rectangular tube. Several spray holes are reserved on the inner side of the lower rectangular tube. The other end of outflow channel B extends into the upper part of the cabinet and connects to an upper rectangular tube, the inner side of which also has several spray holes reserved.

Images