Integrated heat dissipation structure of ring main unit

Abstract

The invention relates to the technical field of electrical equipment, in particular to an integrated heat dissipation structure of a ring main unit, which comprises a shell, a sliding plate and a volume-variable heat conduction pipe, a phase change heat storage material is arranged in the sliding plate, one end of the heat conduction pipe is hinged with the sliding plate, and the other end of the heat conduction pipe extends into the shell; in the first state, one end, in the shell, of the heat conduction pipe is located below the other end; in the second state, one end, in the shell, of the heat conduction pipe is located above the other end; the size of the heat conduction pipe in the first state is smaller than that in the second state. In the first state, the phase change heat storage material in the sliding plate can absorb heat in the shell and heat outside the shell, and the temperature in the sliding plate can be close to the temperature in the shell or even higher than the temperature in the shell; and in the second state, if the temperature in the shell is lower than that of the sliding plate, the sliding plate transfers heat into the shell, so that electronic elements in the ring main unit can operate normally.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and particularly to an integrated heat dissipation structure for a ring main unit box. Background Art

[0002] In modern power systems, as a key device for power distribution and control, ring main unit boxes are widely used in urban power grids, industrial power supply and other fields. Numerous ring main unit boxes are placed in outdoor environments, taking on the important task of ensuring stable power transmission and distribution. However, the outdoor environmental conditions are complex and changeable, posing severe challenges to the performance and reliability of ring main unit boxes.

[0003] Compared with indoor cabinets, the heat dissipation of outdoor cabinets will face more and more complex problems. Especially in extreme areas such as deserts and plateaus, during the day under the scorching sun, the ambient temperature can soar to a very high level, while at night it will drop rapidly, and the temperature difference can reach dozens of degrees Celsius. Electronic components inside the ring main unit box, such as transformers, switches, fuses, etc., are extremely sensitive to temperature. Thermal expansion and contraction may cause loosening of the connection parts such as pins and solder joints of the components, resulting in poor contact, triggering electrical faults, and even causing component damage in severe cases.

[0004] Most of the existing heat dissipation structures for ring main unit boxes are relatively traditional, such as simple ventilation holes or conventional cooling fans. These heat dissipation methods are difficult to cope with such drastic temperature changes, unable to effectively balance the temperature inside the box, with insufficient heat dissipation efficiency during high-temperature periods and difficult to prevent excessive heat dissipation during low-temperature periods. Summary of the Invention

[0005] Based on this, it is necessary to provide an integrated heat dissipation structure for a ring main unit box aiming at the problem that the current ring main unit box is prone to failure in an environment with a large temperature difference.

[0006] The above object is achieved by the following technical solutions: An integrated heat dissipation structure for a ring main unit box includes a temperature control mechanism for dissipating heat from the ring main unit box. The temperature control mechanism includes a housing, a sliding plate, and a heat-conducting tube with variable volume. The ring main unit box is arranged inside the housing. The housing is provided with a vertically arranged ventilation opening. The sliding plate is slidably arranged outside the housing in the vertical direction. The sliding plate is provided with a phase change heat storage material inside. The heat-conducting tube is slidably arranged on the ventilation opening. One end of the heat-conducting tube is hinged to the sliding plate, and the other end of the heat-conducting tube extends into the housing. The inside of the heat-conducting tube is filled with a cooling medium. The heat-conducting tube is used to exchange heat between the sliding plate and the inside of the housing.

[0007] The temperature control mechanism has a first state and a second state. In the first state, the ventilation opening communicates the inside and outside of the housing, and the end of the heat-conducting tube inside the housing is located below the other end. In the second state, the inside and outside of the housing are separated, and the end of the heat-conducting tube inside the housing is located above the other end. The volume of the heat-conducting tube in the first state is smaller than that in the second state.

[0008] Preferably, the heat conduction tube is a telescopic tube, both ends of the telescopic tube are sealed. The heat conduction tube includes a first tube and a second tube. One end of the first tube is sleeved inside the second tube, the first tube and the second tube are slidably connected, and the interiors of the first tube and the second tube are in communication and are slidably sealed between them.

[0009] Preferably, a corrugated tube is sleeved on the first tube and the second tube. The corrugated tube can expand and contract along the axial direction of the first tube, and both ends of the corrugated tube are fixedly connected to the circumferential surface of the first tube and the circumferential surface of the second tube respectively.

[0010] Preferably, an arc surface is provided on the surface of the slide plate close to the housing. A heat conduction cap is provided at the end of the first tube away from the second tube. The surface of the heat conduction cap away from the first tube is spherical, and the spherical surface of the heat conduction cap is slidably connected to the arc surface of the housing.

[0011] Preferably, a groove is formed on the side wall of the ventilation opening. A square frame is slidably arranged in the groove along the vertical direction. The sliding distance of the square frame is less than the sliding distance of the slide plate. Let the highest position of the slide plate and the square frame during sliding be the upper extreme point, and the lowest position of the slide plate and the square frame during sliding be the lower extreme point. The upper extreme point and the lower extreme point of the square frame are located between the upper extreme point and the lower extreme point of the slide plate in the vertical direction. When the temperature control mechanism is in the first state, the slide plate and the square frame are located at the upper extreme point. When in the second state, the slide plate and the square frame are located at the lower extreme point. The distance between the upper extreme point of the square frame and the upper extreme point of the slide plate in the vertical direction is less than the distance between the lower extreme point of the square frame and the lower extreme point of the slide plate in the vertical direction; the second tube is hinged to the square frame, and the first tube is hinged to the slide plate. When the slide plate and the square frame slide relative to each other in the vertical direction, the first tube can rotate on the slide plate, and the second tube can rotate relative to the square frame.

[0012] Preferably, an upper heat insulation plate and a side heat insulation plate are provided on the housing. The upper heat insulation plate is located at the top of the housing. The side heat insulation plate covers the outer side of the housing and is located between the slide plate and the housing. The slide plate is slidably connected to the side heat insulation plate. A through groove is formed on the side heat insulation plate, and the ventilation opening is communicated with the through groove. The heat conduction tube is slidably arranged in the through groove; an air outlet groove is formed on the slide plate. When the temperature control mechanism is in the first state, the air outlet groove is communicated with the through groove. When in the second state, the air outlet groove is separated from the through groove.

[0013] Preferably, a protective cover that expands and contracts along the vertical direction is sleeved on the housing. The protective cover is located above the slide plate, and both ends of the protective cover are connected to the housing and the slide plate respectively.

[0014] Preferably, a threaded rod extending along the vertical direction is provided inside the housing. The threaded rod is rotatably connected to the housing around its own axis. A transmission plate is threadedly connected to the threaded rod. The transmission plate penetrates the housing and is connected to the slide plate. The transmission plate is slidably connected to the housing in the vertical direction. A motor is provided inside the housing, and the motor is used to drive the threaded rod to rotate.

[0015] Preferably, a fan is provided inside the housing. In the first state of the temperature control mechanism, the fan can exchange the gas inside and outside the housing through the ventilation port.

[0016] Preferably, a door is provided on one side of the housing, which is convenient for maintaining the ring network box inside the housing.

[0017] The beneficial effects of the present invention are as follows: A phase change heat storage material is provided inside the sliding plate. In the first state, part of the heat inside the housing is transferred to the sliding plate through the heat conduction tube and then absorbed by the phase change heat storage material inside the sliding plate. At the same time, the sliding plate also absorbs the heat outside the housing through the phase change heat storage material, and the temperature inside the sliding plate will be close to or even higher than the temperature inside the housing; in the second state, the temperature of the phase change heat storage material inside the sliding plate is relatively high compared to the external environment of the housing, and it will start to dissipate heat and cool down. At this time, the volume of the heat conduction tube is larger than its internal volume in the first state, and the internal pressure is relatively small. The boiling point of the cooling medium decreases, and the heat of the sliding plate is more easily transferred to the inside of the housing through the heat conduction tube, making the temperature difference in the environment where the ring network box is located small, and the electronic components inside the ring network box can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an integrated heat dissipation structure of a ring network box provided by an embodiment of the present invention; Figure 2 is Figure 1 an enlarged view of part A in Figure 3 It is a top view of an integrated heat dissipation structure of a ring network box provided by an embodiment of the present invention; Figure 4 is Figure 3 a sectional view taken along the line B-B in Figure 5 is Figure 3 a sectional view taken along the line C-C in Figure 6 is Figure 5 an enlarged view of part D in Figure 7 It is a second state diagram of the temperature control mechanism of an integrated heat dissipation structure of a ring network box provided by an embodiment of the present invention; Figure 8 is Figure 7 an enlarged view of part E in Figure 9 It is a schematic structural diagram of the housing of the temperature control mechanism of an integrated heat dissipation structure of a ring network box provided by an embodiment of the present invention; Figure 10 is Figure 9 an enlarged view of part F in Figure 11 It is a schematic structural diagram of the sliding plate of the temperature control mechanism of an integrated heat dissipation structure of a ring network box provided by an embodiment of the present invention.

[0019] Wherein: 101, housing; 102, ventilation opening; 103, slide plate; 104, first pipe; 105, second pipe; 106, corrugated pipe; 107, heat conduction cap; 108, groove; 109, square box; 110, upper heat insulation plate; 111, side heat insulation plate; 112, through slot; 113, air outlet slot; 114, protective cover; 115, threaded rod; 116, drive plate; 117, motor; 118, reducer; 119, fan; 120, door; 121, ring network box. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present invention, unless otherwise clearly defined and limited, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0023] Such as Figures 1 to 11As shown in the figure, an integrated heat dissipation structure of a ring network cabinet is provided in an embodiment of the present invention, which includes a temperature control mechanism for dissipating heat from the ring network cabinet 121. The temperature control mechanism includes a housing 101, a fan 119, a sliding plate 103, and a heat conduction tube with variable volume. The ring network cabinet 121 is arranged inside the housing 101. A vertically arranged ventilation opening 102 is provided on the housing 101. The sliding plate 103 is slidably arranged outside the housing 101 in the vertical direction. A phase change heat storage material is arranged inside the sliding plate 103. The heat conduction tube is slidably arranged on the ventilation opening 102. One end of the heat conduction tube is hinged to the sliding plate 103, and the other end of the heat conduction tube extends into the housing 101. A cooling medium is filled inside the heat conduction tube, and the cooling medium can be a volatile liquid such as alcohol, liquid ammonia, and freon. The heat conduction tube is used to exchange heat between the sliding plate 103 and the inside of the housing 101.

[0024] The temperature control mechanism has a first state and a second state. During the day, the temperature control mechanism is in the first state, the ventilation opening 102 connects the inside and outside of the housing 101, and the end of the heat conduction tube inside the housing 101 is located below the other end; at night, the temperature control mechanism is in the second state, the inside and outside of the housing 101 are separated, and the end of the heat conduction tube inside the housing 101 is located above the other end; the volume of the heat conduction tube in the first state is smaller than the volume of the heat conduction tube in the second state. A photosensitive element is provided on the housing 101, which can cause the temperature control mechanism to switch between the first state and the second state according to the change of the ambient light intensity.

[0025] A phase change heat storage material is arranged inside the sliding plate 103. In the first state, part of the heat inside the housing 101 is transferred to the sliding plate 103 through the heat conduction tube and then absorbed by the phase change heat storage material inside the sliding plate 103. At the same time, the sliding plate 103 also absorbs the heat outside the housing 101 through the phase change heat storage material, and the temperature inside the sliding plate 103 will be close to or even higher than the temperature inside the housing 101; in the second state, the temperature of the phase change heat storage material inside the sliding plate 103 is relatively high compared to the external environment of the housing 101, and it will start to dissipate heat and cool down. At this time, the volume of the heat conduction tube is larger than the volume inside it in the first state, and the internal pressure is also relatively small. The boiling point of the cooling medium decreases, and the heat of the sliding plate 103 is more easily transferred to the inside of the housing 101 through the heat conduction tube, so that the temperature difference in the environment where the ring network cabinet 121 is located is small, and the electronic components inside the ring network cabinet 121 can operate normally.

[0026] In this embodiment, the heat conduction tube is a telescopic tube, and both ends of the telescopic tube are sealed. The heat conduction tube includes a first tube 104 and a second tube 105. One end of the first tube 104 is sleeved inside the second tube 105, and the first tube 104 and the second tube 105 are slidably connected. A sealing ring is provided on the inner wall of the second tube 105, and the sealing ring is slidably connected to the first tube 104. The inside of the first tube 104 and the second tube 105 is connected and slidably sealed through the sealing ring. After the length of the heat conduction tube changes, its internal volume increases.

[0027] In this embodiment, a corrugated pipe 106 is sleeved on the first pipe 104 and the second pipe 105. The corrugated pipe 106 can expand and contract along the axial direction of the first pipe 104. Both ends of the corrugated pipe 106 are fixedly connected to the circumferential surface of the first pipe 104 and the circumferential surface of the second pipe 105 respectively. The corrugated pipe 106 can seal the connection position between the first pipe 104 and the second pipe 105, preventing the cooling medium from leaking out from the sliding seal position between the first pipe 104 and the second pipe 105 and damaging the electronic components in the ring network box 121.

[0028] In this embodiment, an arc surface is provided on the side of the sliding plate 103 close to the housing 101. A heat conducting cap 107 is provided at the end of the first pipe 104 away from the second pipe 105. The surface of the heat conducting cap 107 away from the first pipe 104 is spherical. The spherical surface of the heat conducting cap 107 is slidably connected to the arc surface of the housing 101. When the first pipe 104 rotates on the housing 101, the heat conducting cap 107 can increase the contact area with the housing 101 through the cooperation of the spherical surface and the arc surface of the housing 101, making the heat conduction efficiency between the housing 101 and the first pipe 104 higher.

[0029] In this embodiment, a groove 108 is formed on the side wall of the vent 102. A square frame 109 is slidably arranged in the groove 108 in the vertical direction. The sliding distance of the square frame 109 is less than that of the sliding plate 103. Let the highest positions of the sliding plate 103 and the square frame 109 during sliding be the upper extreme points, and the lowest positions of the sliding plate 103 and the square frame 109 during sliding be the lower extreme points. The upper extreme point and the lower extreme point of the square frame 109 are located between the upper extreme point and the lower extreme point of the sliding plate 103 in the vertical direction. When the temperature control mechanism is in the first state, both the sliding plate 103 and the square frame 109 are located at the upper extreme points. When in the second state, the sliding plate 103 and the square frame 109 are located at the lower extreme points. The distance between the upper extreme point of the square frame 109 and the upper extreme point of the sliding plate 103 in the vertical direction is less than the distance between the lower extreme point of the square frame 109 and the lower extreme point of the sliding plate 103 in the vertical direction. When the square frame 109 and the sliding plate 103 are at the upper extreme points, the heat conduction tube is also at the upper extreme point. When the square frame 109 and the sliding plate 103 are at the lower extreme points, the heat conduction tube is also at the lower extreme point. The length of the heat conduction tube at the upper extreme point is less than the length of the heat conduction tube at the lower extreme point, that is, the volume of the heat conduction tube in the first state is greater than its volume in the second state. The pressure inside the heat conduction tube decreases as the volume increases, and the vaporization temperature of the cooling medium decreases as the pressure increases. Compared with the prior art, the heat conduction tube with variable volume can enable the temperature of the phase change heat storage material in the sliding plate 103 to be better transferred to the inside of the housing 101, and at the same time make the cooling medium in the heat conduction tube in the daytime environment volatilize more slowly, and can continuously transfer the heat inside the housing 101 to the sliding plate 103. The second tube 105 is hinged to the square frame 109, and the first tube 104 is hinged to the sliding plate 103. The hinge axis of the first tube 104 and the sliding plate 103 is parallel to the hinge axis of the second tube 105 and the square frame 109. When the sliding plate 103 and the square frame 109 slide relative to each other in the vertical direction, the first tube 104 can rotate on the sliding plate 103, and the second tube 105 can rotate relative to the square frame 109. A plurality of heat conduction tubes are arranged in the square frame 109 in the vertical direction, and the plurality of heat conduction tubes are arranged in the vertical direction, which can better realize the heat transfer between the sliding plate 103 and the inside of the housing 101.

[0030] In this embodiment, an upper heat insulation plate 110 and a side heat insulation plate 111 are provided on the housing 101. The upper heat insulation plate 110 is located at the top of the housing 101. The side heat insulation plate 111 covers the outer side of the housing 101 and is located between the sliding plate 103 and the housing 101. The sliding plate 103 is slidably connected to the side heat insulation plate 111. The side heat insulation plate 111 can effectively reduce the heat exchange between the inside and outside of the housing 101 and play a heat preservation effect. A through groove 112 is formed in the side heat insulation plate 111. The ventilation opening 102 is communicated with the through groove 112. The through groove 112 is aligned with the air outlet in the vertical direction, which can ensure the smooth discharge of the hot air located above inside the housing 101. The heat conduction tube is slidably arranged in the through groove 112. An air outlet groove 113 is formed in the sliding plate 103. The through groove 112 is divided into upper and lower parts in the vertical direction. The upper part of the through groove 112 can be communicated with the air outlet groove 113, and the lower part of the through groove 112 is misaligned with the air outlet groove 113 in the vertical direction. When the temperature control mechanism is in the first state, the air outlet groove 113 is communicated with the through groove 112, and in the second state, the air outlet groove 113 is separated from the through groove 112.

[0031] In this embodiment, a protective cover 114 that can be telescoped in the vertical direction is sleeved on the housing 101. The protective cover 114 is located above the sliding plate 103, and both ends of the protective cover 114 are respectively connected to the housing 101 and the sliding plate 103. A sealing plate is provided inside the protective cover 114. The sealing plate is used to isolate the inside of the protective cover 114 from the outside. When the sliding plate 103 moves to the lower extreme point, the sliding plate 103 will block the lower part of the through groove 112, and the upper part of the through groove 112 is blocked by the protective cover 114, so as to reduce the heat loss inside the housing 101 in the second state. At the same time, the protective cover 114 can also provide a certain degree of protection for the ring network box 121 in a harsh environment.

[0032] In this embodiment, a threaded rod 115 extending in the vertical direction is provided inside the housing 101. The threaded rod 115 is rotatably connected to the housing 101 around its own axis. A transmission plate 116 is threadedly connected to the threaded rod 115. The transmission plate 116 penetrates the housing 101 and is connected to the sliding plate 103. The transmission plate 116 is slidably connected to the housing 101 in the vertical direction. A motor 117 is provided inside the housing 101. The motor 117 is used to drive the threaded rod 115 to rotate, so that the transmission plate 116 and the threaded rod 115 drive the sliding plate 103 to move up and down under the thread fit. A sliding groove is formed on the side wall of the housing 101. The transmission plate 116 is slidably arranged in the sliding groove in the vertical direction. A speed reducer 118 is provided at the output end of the motor 117. The output end of the motor 117 is connected to the input end of the speed reducer 118. The output end of the speed reducer 118 is connected to the threaded rod 115. The motor 117 drives the threaded rod 115 to rotate uniformly and slowly through the speed reducer 118.

[0033] In this embodiment, a fan 119 is provided inside the housing 101. In the first state of the temperature control mechanism, the fan 119 can exchange the gas inside and outside the housing 101 through the ventilation opening 102. The fan 119 is arranged on the inner bottom wall of the housing 101, and the gas outside the housing 101 is pumped to the bottom of the housing 101 through the ventilation opening 102, so that the high-temperature gas inside the housing 101 can be discharged from the housing 101 more quickly.

[0034] In this embodiment, a door 120 is provided on one side of the housing 101, which is convenient for maintaining the ring network box 121 inside the housing 101. A plurality of ventilation openings 102 are provided on the three sides of the housing 101 without the door 120. A square box 109 is provided in each ventilation opening 102, and a plurality of heat conduction tubes are provided in each square box 109, and the plurality of heat conduction tubes make the temperature inside the housing 101 more stable. The shape of the sliding plate 103 is U-shaped, each side of the sliding plate 103 is slidably connected to one side of the housing 101 respectively, the sealing plate is a rectangular frame, three sides of the sealing plate are slidably connected to the sliding plate 103 respectively, and the other side of the sealing plate is slidably connected to the housing 101.

[0035] The working principle of the integrated heat dissipation structure of a ring network box provided in the above embodiment is as follows: First, place the housing 101 in an area with a large temperature difference between day and night, and then place the ring network box 121 inside the housing 101 and close the door 120.

[0036] During the day, the temperature control mechanism is in the first state, the sliding plate 103 is located at the upper pole point, the protective cover 114 is in a contracted state, the first tube 104 is located at the upper end of the second tube 105, the liquid cooling medium in the heat conduction tube is located in the second tube 105. After the components inside the ring network box 121 generate heat, they transfer heat to the inside of the housing 101, the temperature inside the housing 101 rises, the hot air flows upward and is discharged from the ventilation opening 102, the pressure inside the housing 101 decreases, and the cold air outside will enter the inside of the housing 101 from the position below the ventilation opening 102, so that the air inside the housing 101 circulates. When the temperature inside the housing 101 is too high, start the fan 119, and the fan 119 can improve the air circulation inside and outside the housing 101.

[0037] At the same time, the temperature inside the housing 101 will cause the cooling medium in the second tube 105 to volatilize. The volatilized cooling medium contacts the end of the first tube 104 and is transferred to the sliding plate 103 through the heat conduction cap 107. After the vaporized cooling medium contacts the first tube 104, it cools and condenses and flows back into the second tube 105 again; the phase change heat storage material in the sliding plate 103 will also absorb the heat from the outside.

[0038] At night, the external environmental temperature decreases and varies greatly from the daytime temperature. The motor 117 is started, and the motor 117 drives the reducer 118 to work. The reducer 118 drives the threaded rod 115 to rotate. The rotation of the threaded rod 115 drives the slide plate 103 to move downward through the transmission plate 116. The slide plate 103 drives the protective cover 114 to extend. Every place where the slide plate 103 passes is covered by the protective cover 114. The air outlet groove 113 on the slide plate 103 is gradually isolated from the through groove 112, and the slide plate 103 gradually seals the contacted through groove 112. When the slide plate 103 moves downward, it drives the second pipe 105 to move downward through the first pipe 104. The second pipe 105 drives the square box 109 to slide downward in the groove 108. As the slide plate 103 moves, the square box 109 first slides to the lower extreme point and no longer slides relative to the housing 101. The slide plate 103 continues to move downward under the drive of the threaded rod 115. At this time, the first pipe 104 approaches the second pipe 105 relative to the second pipe 105, the corrugated pipe 106 begins to contract, the internal space of the heat conduction pipe decreases. At the same time, the first pipe 104 and the second pipe 105 rotate on the slide plate 103 and the square box 109 respectively. When the first pipe 104 and the second pipe 105 are at the same height, the internal space of the heat conduction pipe is the smallest. The slide plate 103 still continues to move downward, and the first pipe 104 begins to slide relative to the second pipe 105 in a direction away from the second pipe 105, the internal space of the heat conduction pipe becomes larger, and the corrugated pipe 106 also begins to elongate; the slide plate 103 continues to move until it reaches the lower extreme point. At this time, the temperature control mechanism is in the second state. The first pipe 104 is located below the second pipe 105, and the liquid cooling medium in the heat conduction pipe is located in the first pipe 104. At this time, the inside of the housing 101 is separated from the outside world.

[0039] The heat collected by the phase change heat storage material of the slide plate 103 during the day begins to be released. The pressure in the heat conduction pipe is smaller than that during the day, the cooling medium is more volatile, and the heat of the slide plate 103 is more likely to be transferred to the inside of the housing 101 through the heat conduction pipe, making the temperature difference between the inside of the housing 101 and the temperature during the day smaller.

[0040] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0041] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An integrated heat dissipation structure of a ring network box, comprising a temperature control mechanism for dissipating heat from the ring network box, characterized in that: The temperature control mechanism includes a shell, a slide plate and a heat pipe with a variable volume. The ring network box is arranged inside the shell. The shell is provided with a vertically arranged vent. The slide plate is slidably arranged outside the shell in a vertical direction. The slide plate is provided with a phase change heat storage material. The heat pipe is slidably arranged on the vent. One end of the heat pipe is hinged to the slide plate, and the other end of the heat pipe extends into the shell. The heat pipe is filled with a cooling medium. The heat pipe is used to exchange heat between the slide plate and the shell. The temperature control mechanism is provided with a first state and a second state. In the first state, the vent is connected to the inside and outside of the shell, and one end of the heat pipe inside the shell is located below the other end; in the second state, the inside and outside of the shell are separated, and one end of the heat pipe inside the shell is located above the other end; the volume of the heat pipe in the first state is smaller than the volume of the heat pipe in the second state.

2. The integrated heat dissipation structure of the ring network box according to claim 1, characterized in that: The heat conducting pipe is a telescopic pipe with sealed ends. The heat conducting pipe comprises a first pipe and a second pipe. One end of the first pipe is sleeved in the second pipe. The first pipe and the second pipe are slidably connected. The first pipe and the second pipe are internally connected and slidably sealed therebetween.

3. The integrated heat dissipation structure of the ring network box according to claim 2, characterized in that: A bellows is sleeved on the first tube and the second tube. The bellows can be expanded and contracted along the axial direction of the first tube. Two ends of the bellows are fixedly connected to the circumference of the first tube and the circumference of the second tube respectively.

4. The integrated heat dissipation structure of the ring network box according to claim 2, characterized in that: The side of the slide plate close to the shell is provided with an arc surface, the end of the first tube away from the second tube is provided with a heat conductive cap, the side of the heat conductive cap away from the first tube is a spherical surface, and the spherical surface of the heat conductive cap is slidably connected to the arc surface of the shell.

5. The integrated heat dissipation structure of a ring network box according to claim 2, characterized in that: A groove is provided on the side wall of the vent, and a square frame is provided in the groove for sliding along the vertical direction. The sliding distance of the square frame is smaller than the sliding distance of the slide plate. The highest sliding position of the slide plate and the square frame is assumed to be the upper pole, and the lowest sliding position of the slide plate and the square frame is assumed to be the lower pole. The upper pole and the lower pole of the square frame are located between the upper pole and the lower pole of the slide plate in the vertical direction. When the temperature control mechanism is in the first state, the slide plate and the square frame are located at the upper pole. When the temperature control mechanism is in the second state, the slide plate and the square frame are located at the lower pole. The vertical distance between the upper pole of the square frame and the upper pole of the slide plate is smaller than the vertical distance between the lower pole of the square frame and the lower pole of the slide plate. The second tube is hinged to the square frame, and the first tube is hinged to the slide plate. When the slide plate and the square frame slide relative to each other in the vertical direction, the first tube can rotate on the slide plate, and the second tube can rotate relative to the square frame.

6. The integrated heat dissipation structure of a ring network box according to claim 5, characterized in that: An upper heat insulation plate and a side heat insulation plate are provided on the shell. The upper heat insulation plate is located on the top of the shell. The side heat insulation plate is covered on the outer side of the shell and is located between the slide plate and the shell. The slide plate is slidably connected to the side heat insulation plate. A through groove is provided on the side heat insulation plate. The vent is connected to the through groove. The heat conducting pipe is slidably arranged in the through groove. An air outlet groove is provided on the slide plate. When the temperature control mechanism is in the first state, the air outlet groove is connected to the through groove. When the temperature control mechanism is in the second state, the air outlet groove is separated from the through groove.

7. The integrated heat dissipation structure of a ring network box according to claim 1, characterized in that: A protective cover which is telescopic in the vertical direction is sleeved on the shell body, the protective cover is located above the slide plate, and two ends of the protective cover are respectively connected with the shell body and the slide plate.

8. The integrated heat dissipation structure of a ring network box according to claim 1, characterized in that: A threaded rod extending in the vertical direction is provided inside the shell, and the threaded rod is rotatably connected to the shell around its own axis. A transmission plate is threadedly connected to the threaded rod, and the transmission plate penetrates the shell and is connected to the slide plate. The transmission plate is slidably connected to the shell in the vertical direction. A motor is provided in the shell, and the motor is used to drive the threaded rod to rotate.

9. The integrated heat dissipation structure of a ring network box according to claim 1, characterized in that: A fan is arranged inside the shell. When the temperature control mechanism is in the first state, the fan can exchange gas inside and outside the shell through the ventilation hole.

10. The integrated heat dissipation structure of a ring network box according to claim 1, characterized in that: A door is provided on one side of the shell to facilitate maintenance of the ring network box inside the shell.

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