An intelligent control device for ring main unit

Abstract

The present invention belongs to the technical field of intelligent control devices, and discloses an intelligent control device for a ring network cabinet, comprising a device body, wherein a controller, an interface, and a temperature and humidity sensor are provided inside the device body, a mounting part is fixedly connected to the outer surface of the device body, an air pressure balancing mechanism is fixedly connected to the left side of the device body, a No. 1 sealing cylinder is fixedly connected to the right side of the device body, a No. 1 heat dissipation hole is provided on the outer surface of the No. 1 sealing cylinder, and a heat dissipation cylinder is fixedly connected to the right side of the No. 1 sealing cylinder. The present invention realizes the conduction of hot air inside the device body through the through hole in a sealed state by the sleeve conversion of the No. 1 connecting ring and the No. 2 connecting ring on the inner wall of the No. 1 sealing cylinder, thereby achieving the sealing-heat dissipation balance condition of the device body, and then dissipates heat by wind by providing the No. 1 heat dissipation hole, and accelerates the upward accumulation of heat by utilizing the "chimney effect" by providing the heat dissipation cylinder.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent control devices, and in particular relates to an intelligent control device for a ring main unit. Background Art

[0002] A ring main unit (RMU) is an electrical device in which a group of high-voltage switchgear is placed inside an insulating cabinet to form an assembled compartmentalized ring main unit. It is mainly used to connect the power between residential power centers and distribution stations, and provide power control functions for urban electricity use. The intelligent control device that controls the RMU is responsible for detecting and controlling the RMU's switching, connection, dehumidification and heat dissipation functions, and is usually connected to the RMU.

[0003] At present, since the intelligent control device of the ring network cabinet in the existing technology is independent of the ring network cabinet, the heat dissipation of its internal components is also relatively independent. In order to achieve remote control, the control device in the existing technology will have a built-in processor and communication module. These components need to dissipate heat, and the heat dissipation method of the control device is to use a fan to circulate internal and external airflow. This brings great challenges to the dehumidification of the intelligent control device of the ring network cabinet deployed in the southern area with high humidity. The existing heat dissipation method cannot maintain a balance between sealing and heat dissipation, and it is urgently needed to be solved.

[0004] At the same time, due to the use of an open active heat dissipation method, the air pressure inside and outside the ring network cabinet intelligent control device in the existing technology is equal, so that some external impurities can easily enter the interior of the device, thereby causing damage to internal components; in addition, the internal structure of the ring network cabinet intelligent control device in the existing technology is highly integrated, and its design concept is to compress space and volume. The active heat dissipation fan used in the existing technology not only provides more heat than demand, but also occupies valuable space inside the device, increasing the space design cost. Summary of the Invention

[0005] The object of the present invention is to provide an intelligent control device for a ring main unit to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: an intelligent control device for a ring network cabinet, comprising a device body, wherein a controller, an interface and a temperature and humidity sensor are arranged inside the device body, the outer surface of the device body is fixedly connected to a mounting part, the left side of the device body is fixedly connected to an air pressure balancing mechanism, the right side of the device body is fixedly connected to a No. 1 sealing cylinder, the outer surface of the No. 1 sealing cylinder is provided with a No. 1 heat dissipation hole, the right side of the No. 1 sealing cylinder is fixedly connected to a heat dissipation cylinder, the inner wall of the device body is fixedly sleeved with a heat-conducting column, a through hole is provided on the right side of the device body, the right side of the device body is fixedly connected to a fixed cylinder, the interior of the fixed cylinder is movably sleeved with a No. 2 sealing cylinder and a No. 2 spring and is filled with kerosene through the No. 2 sealing cylinder and the heat-conducting column, the heat-conducting column passes through the interior of the fixed cylinder and the No. 2 sealing cylinder, the right side of the No. 2 sealing cylinder is fixedly connected to a No. 1 connecting ring, a connecting cylinder and a No. 2 connecting ring, and the No. 2 connecting ring is sealed and sleeved in the middle of the inner wall of the No. 1 sealing cylinder.

[0007] Preferably, the controller includes a processor, a PCB board and a communication module, the controller is welded and fixed to the heat-conducting column, the interface is electrically connected to the controller, the temperature and humidity sensor is electrically connected to the controller, and the mounting part is welded and fixed to the outer surface of the device body.

[0008] Preferably, the air pressure balancing mechanism includes a sleeve, the left end of the sleeve is fixedly connected to a dry-wet separator, the inner wall of the sleeve is fixedly sleeved with a fixing ring, the internal sealing sleeve of the fixing ring is connected with a sealing column, the outer surface of the sealing column is movably sleeved with a No. 1 spring, the two ends of the No. 1 spring are respectively fixedly connected to the fixing ring and the sealing column, the right side of the outer surface of the sealing column is fixedly connected with a contact block, the diameter value of the right end of the sealing column is smaller than the inner diameter value of the sleeve, the sleeve is fixedly sleeved on the left side of the inner wall of the device body, and the dry-wet separator is fixedly connected to the left side of the device body.

[0009] Preferably, a No. 2 heat dissipation hole is opened on the top of the outer surface of the heat dissipation tube, the heat dissipation tube is designed to be through-through from top to bottom, and the inner wall of the heat dissipation tube is in a frustum shape with a thicker bottom and a thinner top.

[0010] Preferably, the fixed cylinder, No. 2 sealing cylinder, No. 1 connecting ring, connecting cylinder and No. 2 connecting ring are sealed and sleeved on the outer surface of the heat-conducting column from left to right in sequence, the No. 2 spring is located inside the fixed cylinder and its two ends are fixedly connected to the fixed cylinder and No. 2 sealing cylinder respectively, and the outer surface of the heat-conducting column is in sealed contact with kerosene.

[0011] Preferably, the inner wall of the No. 1 sealing cylinder is designed as a symmetrical hourglass with a thin middle and thick sides. The No. 2 connecting ring is sealed and sleeved on the thinnest part of the inner wall of the No. 1 sealing cylinder. The left and right ends of the connecting cylinder are respectively fixedly connected to the No. 1 connecting ring and the connecting cylinder. The through holes respectively connect the inner cavity of the device body and the inner cavity of the No. 1 sealing cylinder.

[0012] Preferably, a sealing ring is fixedly sleeved on the outer surface of the heat-conducting column and is sealed with the inner wall of the device body through the sealing ring, and the right end of the sealing ring extends rightward to the inside of the heat dissipation tube.

[0013] Preferably, the kerosene is located between the left side of the inner wall of the fixed cylinder and the No. 2 sealing cylinder, and the kerosene is sealed on the outer surface of the heat-conducting column through the No. 2 spring and the No. 2 sealing cylinder.

[0014] Preferably, the mounting member includes a mounting block, with through fixing holes provided at the four corners of the front side of the mounting block, placement grooves provided on the left and right sides of the back side of the mounting block, magnets fixed inside the placement grooves, and the mounting block is welded and fixed to the outer surface of the device body.

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

[0016] 1. The present invention seals the heat-conducting column on the right side of the inner wall of the device body through a sealing ring, and then passively conducts the heat generated by the controller during operation to the outside. By providing kerosene, it expands under the heat conduction of the heat-conducting column and gradually drives the No. 2 sealing cylinder, the No. 1 connecting ring, the connecting cylinder and the No. 2 connecting ring to move to the right. By the sleeve conversion of the No. 1 connecting ring and the No. 2 connecting ring on the inner wall of the No. 1 sealing cylinder, the hot air inside the device body is conducted through the through hole in a sealed state, achieving a balanced condition of sealing and heat dissipation of the device body. Then, by opening the No. 1 heat dissipation hole, wind heat dissipation is carried out, and by providing the heat dissipation cylinder, the "chimney effect" is utilized to accelerate the upward accumulation of heat.

[0017] 2. The present invention provides a sealing column in the No. 2 sealing cylinder to drive the No. 1 connecting ring and the No. 2 connecting ring to move to the right, and forms a force to pull the sealing column to the right in cooperation with the inner wall of the No. 1 sealing cylinder, and then maintains the pressure of the sealing column to reset to the left by stretching the No. 1 spring. As the sealing column separates from the inner wall of the fixed ring during movement, the outside air is dried by the wet-dry separator and enters the inner cavity of the device body through the sleeve and the fixed ring. Therefore, while maintaining the pressure balance inside and outside the device body, the continuous movement of the sealing column increases the relative air pressure of the inner wall of the device body, thereby preventing external impurities from entering the interior of the device body.

[0018] 3. The present invention is provided with a heat-conducting column extending to the interior of the heat dissipation tube, and the tapered design of the inner wall of the heat dissipation tube, which is thin at the bottom and thick at the top, accelerates the upward movement of heat from the heat-conducting column, forming a wind force that is only generated when a traditional fan is turned on. The fan built into the device body is removed without affecting the heat dissipation inside the device body, and then the kerosene absorbs heat and expands, driving the No. 2 sealing tube, the No. 1 connecting ring and the No. 2 connecting ring to move. In a sealed form, with the cooperation of the air pressure balance mechanism, the heat dissipation and the space release function of the inner cavity of the device body are performed synchronously, so that the positions of electronic components can be arranged more reasonably inside the device body, which has the advantage of saving space design costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front three-dimensional appearance of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the back three-dimensional appearance of the overall structure of the present invention;

[0021] Figure 3 It is a front cutaway schematic diagram of the overall structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure of the middle A;

[0023] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the B-division structure;

[0024] Figure 6 This is an exploded schematic diagram of the No. 1 sealing cylinder, the heat dissipation cylinder, the through hole, the sealing ring, the No. 1 connecting ring, the connecting cylinder, the No. 2 connecting ring, the fixing cylinder, the No. 2 sealing cylinder, and the No. 2 spring of the present invention;

[0025] Figure 7 Schematic diagram of the exploded view of the air pressure balancing mechanism of the present invention;

[0026] Figure 8 It is a schematic top view of the overall structure of the present invention;

[0027] Figure 9 It is a top view and cutaway schematic diagram of the overall structure of the present invention.

[0028] In the figure: 1. Device body; 101. Controller; 102. Interface; 103. Temperature and humidity sensor; 2. Sealing cylinder No. 1; 3. Heat dissipation hole No. 1; 4. Mounting piece; 41. Mounting block; 42. Fixing hole; 43. Placement slot; 44. Magnet; 5. Heat dissipation cylinder; 6. Heat dissipation hole No. 2; 7. Air pressure balance mechanism; 71. Sleeve; 72. Fixing ring; 73. Sealing column; 74. Contact block; 75. Spring No. 1; 76. Dry-wet separator; 8. Heat-conducting column; 9. Through hole; 10. Sealing ring; 11. Connecting ring No. 1; 12. Connecting cylinder; 13. Connecting ring No. 2; 14. Fixing cylinder; 15. Sealing cylinder No. 2; 16. Spring No. 2; 17. Kerosene. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1 to 9 As shown, the embodiment of the present invention provides an intelligent control device for a ring network cabinet, including a device body 1, a controller 101, an interface 102 and a temperature and humidity sensor 103 are arranged inside the device body 1, a mounting member 4 is fixedly connected to the outer surface of the device body 1, an air pressure balance mechanism 7 is fixedly connected to the left side of the device body 1, a No. 1 sealing cylinder 2 is fixedly connected to the right side of the device body 1, a No. 1 heat dissipation hole 3 is opened on the outer surface of the No. 1 sealing cylinder 2, a heat dissipation cylinder 5 is fixedly connected to the right side of the No. 1 sealing cylinder 2, and the inner wall of the device body 1 is fixed. A heat-conducting column 8 is sleeved, and a through hole 9 is opened on the right side of the device body 1. A fixed cylinder 14 is fixedly connected to the right side of the device body 1. The interior of the fixed cylinder 14 is movably sleeved with a No. 2 sealing cylinder 15 and a No. 2 spring 16 and is filled with kerosene 17 through the No. 2 sealing cylinder 15 and the heat-conducting column 8. The heat-conducting column 8 passes through the interior of the fixed cylinder 14 and the No. 2 sealing cylinder 15. The right side of the No. 2 sealing cylinder 15 is fixedly connected with a No. 1 connecting ring 11, a connecting cylinder 12 and a No. 2 connecting ring 13. The No. 2 connecting ring 13 is sealingly sleeved in the middle of the inner wall of the No. 1 sealing cylinder 2.

[0031] The working principle and beneficial effects of the above technical solution are:

[0032] When the device is working, the controller 101 generates heat in the device body 1, which is first conducted outward through the heat-conducting column 8, and then the heat is transferred to the kerosene 17 to generate expansion force and push the No. 2 sealing cylinder 15 to the right. The No. 2 spring 16 is stretched, and at the same time drives the No. 1 connecting ring 11, the connecting cylinder 12 and the No. 2 connecting ring 13, so that the No. 2 connecting ring 13 generates negative pressure inside the device body 1 through the through hole 9 when the thinnest part of the inner wall of the No. 1 sealing cylinder 2 moves, and then the air pressure is balanced under the action of the air pressure balance mechanism 7. As the No. 1 connecting ring 11 and the No. 2 connecting ring 13 move synchronously, the No. 1 connecting ring 11 and the No. 2 connecting ring 13 move synchronously. 3 are jointly sealed and sleeved on the middle part of the inner wall of the No. 1 sealing cylinder 2, thereby completing the heat transfer between the No. 1 connecting ring 11 and the connecting cylinder 12, until the No. 2 connecting ring 13 is separated from the sealing sleeve on the inner wall of the No. 1 sealing cylinder 2. The No. 1 connecting ring 11 is completely and sealingly sleeved on the middle part of the inner wall of the No. 1 sealing cylinder 2 and maintains the sealing condition inside the device body 1. With the external natural wind, the heat conducting column 8 is cooled through the No. 1 heat dissipation hole 3 and the heat dissipation cylinder 5. The vertical design of the heat dissipation cylinder 5 also forms a "chimney effect", which dissipates heat faster. Without using a fan, a perfect balance between heat dissipation and sealing inside the device body 1 can be achieved.

[0033] By providing a sealing ring 10, the heat-conducting column 8 is sealed and sleeved on the right side of the inner wall of the device body 1, and then the heat generated by the controller 101 during operation is passively conducted outward. By providing kerosene 17, it expands under the heat conduction of the heat-conducting column 8 and gradually drives the No. 2 sealing cylinder 15, the No. 1 connecting ring 11, the connecting cylinder 12 and the No. 2 connecting ring 13 to move to the right. By the sleeve conversion of the No. 1 connecting ring 11 and the No. 2 connecting ring 13 on the inner wall of the No. 1 sealing cylinder 2, the hot air inside the device body 1 is conducted through the through hole 9 in a sealed state, and the sealing-heat dissipation balance condition of the device body 1 is achieved. Then, by opening the No. 1 heat dissipation hole 3 for wind heat dissipation, the heat dissipation cylinder 5 is provided to utilize the "chimney effect" to accelerate the upward accumulation of heat.

[0034] By providing a heat-conducting column 8 to extend to the interior of the heat dissipation tube 5, the tapered design of the inner wall of the heat dissipation tube 5, which is thin at the bottom and thick at the top, accelerates the upward movement of heat from the heat-conducting column 8, forming a wind force that is only generated when a traditional fan is turned on. The fan built into the device body 1 is removed without affecting the heat dissipation inside the device body 1, and then the kerosene 17 absorbs heat and expands, driving the No. 2 sealing tube 15, the No. 1 connecting ring 11 and the No. 2 connecting ring 13 to move, and in a sealed form, with the cooperation of the air pressure balance mechanism 7, the synchronous heat dissipation and space liberation function of the inner cavity of the device body 1 are performed, so that the positions of electronic components inside the device body 1 can be arranged more reasonably, which has the advantage of saving space design costs.

[0035] like Figure 1 、 2As shown in Figures 3 and 9, in one embodiment, the controller 101 includes a processor, a PCB board and a communication module. The controller 101 is welded and fixed to the thermal conductive column 8, the interface 102 is electrically connected to the controller 101, the temperature and humidity sensor 103 is electrically connected to the controller 101, and the mounting part 4 is welded and fixed to the outer surface of the device body 1.

[0036] The working principle and beneficial effects of the above technical solution are:

[0037] When the device is working, the device body 1 is embedded in the ring network cabinet by bolting through the mounting part 4, the circuit is connected through the interface 102 and the power is turned on, so that the probe part of the temperature and humidity sensor 103 is placed inside the ring network cabinet and collects temperature and humidity data, which is analyzed by the processor in the controller 101 and finally displayed on the front of the device body 1. The highly integrated controller 101 can enhance more functions with the support of the PCB board, not only realizing remote control of the device body 1, but also realizing basic hardware support for more functions, and having higher flexibility.

[0038] like Figure 3 、 4 As shown in Figure 7, in one embodiment, the air pressure balancing mechanism 7 includes a sleeve 71, the left end of the sleeve 71 is fixedly connected to a dry-wet separator 76, the inner wall of the sleeve 71 is fixedly sleeved with a fixing ring 72, the internal sealing sleeve of the fixing ring 72 is connected to a sealing column 73, the outer surface of the sealing column 73 is movably sleeved with a No. 1 spring 75, the two ends of the No. 1 spring 75 are respectively fixedly connected to the fixing ring 72 and the sealing column 73, the right side of the outer surface of the sealing column 73 is fixedly connected with a contact block 74, the diameter of the right end of the sealing column 73 is smaller than the inner diameter of the sleeve 71, the sleeve 71 is fixedly sleeved on the left side of the inner wall of the device body 1, and the dry-wet separator 76 is fixedly connected to the left side of the device body 1.

[0039] The working principle and beneficial effects of the above technical solution are:

[0040] When the kerosene 17 expands due to heat and drives the No. 1 connecting ring 11 and the No. 2 connecting ring 13 to move to the right, a negative pressure is formed inside the device body 1 by moving with the sealing sleeve in the inner wall of the device body 1. In order to balance the air pressure, the sealing column 73 will continue to move to the right and stretch the No. 1 spring 75, so that the sealing column 73 gradually moves until it is no longer sealed with the inner wall of the fixed ring 72, and then the outside air is dried by the wet-dry separator 76 and enters the interior of the device body 1, and then the air pressure inside the device body 1 is replenished. As the sealing column 73 continues to move, the air pressure inside the device body 1 will be higher than the external air pressure, thereby preventing external impurities from entering the interior of the device body 1.

[0041] By providing a sealing column 73 in the No. 2 sealing cylinder 15, the No. 1 connecting ring 11 and the No. 2 connecting ring 13 are driven to move to the right, and in cooperation with the inner wall of the No. 1 sealing cylinder 2, a force is formed to pull the sealing column 73 to the right, and then the pressure of the sealing column 73 to reset to the left is maintained by stretching the No. 1 spring 75. As the sealing column 73 separates from the inner wall of the fixed ring 72 during movement, the outside air is dried by the wet-dry separator 76 and enters the inner cavity of the device body 1 through the sleeve 71 and the fixed ring 72. Therefore, under the effect of maintaining the pressure balance between the inside and outside of the device body 1, the continuous movement of the sealing column 73 is used to increase the relative air pressure of the inner wall of the device body 1, thereby preventing external impurities from entering the interior of the device body 1.

[0042] like Figure 1 、 2 As shown in FIG3 , in one embodiment, a second heat dissipation hole 6 is provided on the top of the outer surface of the heat dissipation tube 5 . The heat dissipation tube 5 is designed to be through-through from top to bottom, and the inner wall of the heat dissipation tube 5 is in a cone-shaped distribution with a thick bottom and a thin top.

[0043] The working principle and beneficial effects of the above technical solution are:

[0044] The right end of the heat-conducting column 8 extends to the interior of the heat dissipation tube 5. On the one hand, heat is dissipated under the action of external natural wind. At the same time, heat begins to gather upward. As the horizontal cross-sectional area moves upward, it becomes smaller and smaller, causing the heat to form a "chimney effect" inside the heat dissipation tube 5, which increases the speed of heat movement upward, which is conducive to the rapid heat dissipation of the heat-conducting column 8.

[0045] like Figure 3 、 5 As shown in Figures 6 and 9, in one embodiment, the fixed cylinder 14, the No. 2 sealing cylinder 15, the No. 1 connecting ring 11, the connecting cylinder 12 and the No. 2 connecting ring 13 are sealed and sleeved on the outer surface of the heat-conducting column 8 in sequence from left to right, the No. 2 spring 16 is located inside the fixed cylinder 14 and its two ends are fixedly connected to the fixed cylinder 14 and the No. 2 sealing cylinder 15 respectively, and the outer surface of the heat-conducting column 8 is in sealed contact with kerosene 17.

[0046] The working principle and beneficial effects of the above technical solution are:

[0047] When the controller 101 generates heat during operation and transfers the heat to the heat-conducting column 8, the heat-conducting column 8 dissipates heat outward through the heat dissipation tube 5, and at the same time heats the kerosene 17 to make it expand, pushing the No. 2 sealing tube 15 to the right, driving the No. 1 connecting ring 11 and the No. 2 connecting ring 13 to move to the right synchronously, thereby releasing the air pressure inside the device body 1, and preventing the through hole 9 from being connected to the outside world through the synchronous sealing socket action of the No. 1 connecting ring 11 and the No. 2 connecting ring 13, thereby realizing the sealing function inside the device body 1.

[0048] When the No. 1 connecting ring 11 is sealingly sleeved on the inner wall of the No. 1 sealing tube 2, the No. 2 connecting ring 13 is sealingly sleeved on the inner wall of the No. 1 sealing tube 2. At this time, the interior of the No. 1 sealing tube 2 is sealed from the outside through the No. 2 connecting ring 13. When the No. 1 connecting ring 11 is sealingly sleeved on the inner wall of the No. 1 sealing tube 2, the No. 2 connecting ring 13 is still sealingly sleeved on the inner wall of the No. 1 sealing tube 2. When the No. 2 connecting ring 13 gradually separates from the inner wall of the No. 1 sealing tube 2, the heat between the No. 1 connecting ring 11 and the connecting tube 12 is discharged, and at the same time, the sealing state of the inner wall of the device body 1 can always be maintained.

[0049] like Figure 3 、 6 As shown, in one embodiment, the inner wall of the No. 1 sealing cylinder 2 is designed as a symmetrical hourglass with a thin middle and thick sides, the No. 2 connecting ring 13 is sealingly sleeved on the thinnest part of the inner wall of the No. 1 sealing cylinder 2, and the left and right ends of the connecting cylinder 12 are fixedly connected to the No. 1 connecting ring 11 and the connecting cylinder 12 respectively, and the through hole 9 connects the inner cavity of the device body 1 with the inner cavity of the No. 1 sealing cylinder 2 respectively.

[0050] The working principle and beneficial effects of the above technical solution are:

[0051] The symmetrical hourglass design of the No. 1 sealing tube 2 enables the No. 1 connecting ring 11 and the No. 2 connecting ring 13 to synchronously seal and dissipate heat on the inner wall of the No. 1 sealing tube 2 when moving to the right. When the No. 2 connecting ring 13 is separated from the inside of the No. 1 sealing tube 2, the inner wall of the No. 1 sealing tube 2 is sealed by the No. 1 connecting ring 11, which can effectively prevent the inner cavity of the device body 1 from communicating with the outside world, and has high reliability.

[0052] like Figure 3 As shown, in one embodiment, a sealing ring 10 is fixedly sleeved on the outer surface of the heat-conducting column 8 and is sealed with the inner wall of the device body 1 through the sealing ring 10, and the right end of the sealing ring 10 extends rightward to the inside of the heat dissipation tube 5.

[0053] The working principle and beneficial effects of the above technical solution are:

[0054] The heat-conducting column 8 passes through the inner wall of the device body 1 to the right and is fixed and sealed under the action of the sealing ring 10, so that the heat generated by the controller 101 is synchronously conducted to the right through the heat-conducting column 8, which can effectively save the space inside the device body 1 that is required to install an additional cooling fan, and reduce the design cost and wiring cost of the internal space of the device body 1.

[0055] like Figure 3 、 5 As shown in FIG9 , in one embodiment, the kerosene 17 is located between the left side of the inner wall of the fixed cylinder 14 and the No. 2 sealing cylinder 15 , and the kerosene 17 is sealed on the outer surface of the heat-conducting column 8 through the No. 2 spring 16 and the No. 2 sealing cylinder 15 .

[0056] The working principle and beneficial effects of the above technical solution are:

[0057] When heated, the kerosene 17 will expand in volume, thereby pushing the No. 2 sealing cylinder 15 to the right, realizing the air pressure conversion inside the device body 1. It also has a certain cooling function for the heat-conducting column 8. By pushing the No. 2 sealing cylinder 15, the No. 1 connecting ring 11 and the No. 2 connecting ring 13 can be driven to realize heat discharge under sealing conditions.

[0058] like Figure 1 、 2 As shown, in one embodiment, the mounting member 4 includes a mounting block 41, and through fixing holes 42 are provided at the four corners of the front side of the mounting block 41, and placement grooves 43 are provided on the left and right sides of the back side of the mounting block 41. The interior of the placement groove 43 is fixed with a magnet 44, and the mounting block 41 is welded and fixed to the outer surface of the device body 1.

[0059] The working principle and beneficial effects of the above technical solution are:

[0060] The mounting part 4 is welded to the outer surface of the device body 1 to assist in the installation of the device body 1. The device body 1 is positioned by embedding the mounting block 41 into the preset mounting groove of the ring network cabinet. Then, the magnetic attraction assisted installation is performed by the magnet 44, which can save time and effort for workers during installation.

[0061] Working principle and usage process:

[0062] When the device is in operation, the device body 1 is embedded in the ring main unit by bolting through the mounting member 4, the circuit is connected through the interface 102 and the power is turned on, so that the probe part of the temperature and humidity sensor 103 is placed inside the ring main unit and collects temperature and humidity data. The data is analyzed by the processor in the controller 101 and finally displayed on the front of the device body 1;

[0063] When the controller 101 generates heat in the device body 1, it will first be conducted outward through the heat-conducting column 8, and then the heat will be transferred to the kerosene 17 to generate expansion force and push the No. 2 sealing cylinder 15 to the right. The No. 2 spring 16 is stretched, and at the same time drives the No. 1 connecting ring 11, the connecting cylinder 12 and the No. 2 connecting ring 13, so that the No. 2 connecting ring 13 generates negative pressure inside the device body 1 through the through hole 9 when the thinnest part of the inner wall of the No. 1 sealing cylinder 2 moves, and then the air pressure is balanced under the action of the air pressure balance mechanism 7. As the No. 1 connecting ring 11 and the No. 2 connecting ring 13 move synchronously, the No. 1 connecting ring 11 and the No. 2 connecting ring 13 seal together. The sealing sleeve is connected to the middle part of the inner wall of the No. 1 sealing cylinder 2, thereby completing the heat transfer between the No. 1 connecting ring 11 and the connecting cylinder 12, until the No. 2 connecting ring 13 is separated from the sealing sleeve on the inner wall of the No. 1 sealing cylinder 2. The No. 1 connecting ring 11 is completely sealed and sleeved on the middle part of the inner wall of the No. 1 sealing cylinder 2 and maintains the sealing condition inside the device body 1. With the external natural wind, the heat conducting column 8 is cooled through the No. 1 heat dissipation hole 3 and the heat dissipation cylinder 5. The vertical design of the heat dissipation cylinder 5 also forms a "chimney effect", which dissipates heat faster. In the case of not using a fan, a perfect balance between heat dissipation and sealing inside the device body 1 can be achieved;

[0064] When the kerosene 17 expands due to heat and drives the No. 1 connecting ring 11 and the No. 2 connecting ring 13 to move to the right, a negative pressure is formed inside the device body 1 by moving with the sealing sleeve in the inner wall of the device body 1. In order to balance the air pressure, the sealing column 73 will continue to move to the right and stretch the No. 1 spring 75, so that the sealing column 73 gradually moves until it is no longer sealed with the inner wall of the fixed ring 72, and then the outside air is dried by the wet-dry separator 76 and enters the interior of the device body 1, and then the air pressure inside the device body 1 is replenished. As the sealing column 73 continues to move, the air pressure inside the device body 1 will be higher than the external air pressure, thereby preventing external impurities from entering the interior of the device body 1.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent control device for a ring main unit, comprising a device body (1), wherein a controller (101), an interface (102) and a temperature and humidity sensor (103) are provided inside the device body (1), and characterized in that: The outer surface of the device body (1) is fixedly connected to a mounting member (4), the left side of the device body (1) is fixedly connected to an air pressure balancing mechanism (7), the right side of the device body (1) is fixedly connected to a No. 1 sealing cylinder (2), the outer surface of the No. 1 sealing cylinder (2) is provided with a No. 1 heat dissipation hole (3), the right side of the No. 1 sealing cylinder (2) is fixedly connected to a heat dissipation cylinder (5), the inner wall of the device body (1) is fixedly sleeved with a heat conducting column (8), the right side of the device body (1) is provided with a through hole (9), the right side of the device body (1) is fixedly connected to a fixing cylinder (14), the inner surface of the fixing cylinder (14) is movable The movable sleeve is connected with a No. 2 sealing cylinder (15) and a No. 2 spring (16) and is filled with kerosene (17) through the No. 2 sealing cylinder (15) and the heat-conducting column (8). The heat-conducting column (8) penetrates the interior of the fixed cylinder (14) and the No. 2 sealing cylinder (15). The right side of the No. 2 sealing cylinder (15) is fixedly connected with a No. 1 connecting ring (11), a connecting cylinder (12) and a No. 2 connecting ring (13). The No. 2 connecting ring (13) is sealingly sleeved on the middle part of the inner wall of the No. 1 sealing cylinder (2). The air pressure balancing mechanism (7) includes a sleeve (71). The left end of the sleeve (71) is fixedly connected with a dry-wet separator (76). The sleeve (71) ) is fixedly sleeved with a fixing ring (72) on its inner wall, the fixing ring (72) is sealed with a sealing column (73) inside, the outer surface of the sealing column (73) is movably sleeved with a No. 1 spring (75), the two ends of the No. 1 spring (75) are fixedly connected to the fixing ring (72) and the sealing column (73), respectively, the right side of the outer surface of the sealing column (73) is fixedly connected with a contact block (74), the diameter of the right end of the sealing column (73) is smaller than the inner diameter of the sleeve (71), the sleeve (71) is fixedly sleeved on the left side of the inner wall of the device body (1), and the dry-wet separator (76) is fixedly connected to the left side of the device body (1). The top of the outer surface of the heat dissipation tube (5) is provided with a second heat dissipation hole (6). The heat dissipation tube (5) is designed to be through-through from top to bottom. The inner wall of the heat dissipation tube (5) is distributed in a cone shape with a thick bottom and a thin top. The fixed tube (14), the second sealing tube (15), the first connecting ring (11), the connecting tube (12) and the second connecting ring (13) are sealed and sleeved on the outer surface of the heat-conducting column (8) from left to right. The second spring (16) is located inside the fixed tube (14) and its two ends are fixedly connected to the fixed tube (14) and the second sealing tube (15) respectively. The outer surface of the heat-conducting column (8) is in sealing contact with kerosene (17).

2. The intelligent control device for a ring main unit according to claim 1, characterized in that: The controller (101) includes a processor, a PCB board and a communication module. The controller (101) is welded and fixed to the heat-conducting column (8). The interface (102) is electrically connected to the controller (101). The temperature and humidity sensor (103) is electrically connected to the controller (101). The mounting member (4) is welded and fixed to the outer surface of the device body (1).

3. The intelligent control device for a ring main unit according to claim 2, characterized in that: The inner wall of the No. 1 sealing cylinder (2) is in a symmetrical hourglass design with a thin middle and thick sides. The No. 2 connecting ring (13) is sealingly sleeved on the thinnest part of the inner wall of the No. 1 sealing cylinder (2). The left and right ends of the connecting cylinder (12) are fixedly connected to the No. 1 connecting ring (11) and the connecting cylinder (12) respectively. The through hole (9) is connected to the inner cavity of the device body (1) and the inner cavity of the No. 1 sealing cylinder (2) respectively.

4. The intelligent control device for a ring main unit according to claim 1, characterized in that: The outer surface of the heat-conducting column (8) is fixedly sleeved with a sealing ring (10) and is sealed with the inner wall of the device body (1) through the sealing ring (10). The right end of the sealing ring (10) extends rightward to the inside of the heat dissipation tube (5).

5. The intelligent control device for a ring main unit according to claim 1, characterized in that: The kerosene (17) is located between the left side of the inner wall of the fixed cylinder (14) and the No. 2 sealing cylinder (15), and the kerosene (17) is sealed on the outer surface of the heat-conducting column (8) through the No. 2 spring (16) and the No. 2 sealing cylinder (15).

6. The intelligent control device for a ring main unit according to claim 1, characterized in that: The mounting member (4) comprises a mounting block (41), wherein four corners of the front face of the mounting block (41) are provided with through fixing holes (42), and the left and right sides of the back face of the mounting block (41) are provided with placement grooves (43), and magnets (44) are fixedly connected to the interior of the placement grooves (43). The mounting block (41) is welded and fixed to the outer surface of the device body (1).

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