Metering box with intelligent temperature control function and working method thereof

Abstract

The invention discloses a metering box with an intelligent temperature control function and a working method thereof.The metering box with the intelligent temperature control function comprises a box shell and an electric energy control metering component and further comprises an inner heat insulation plate, a ventilation mechanism, a controller and a temperature sensor, the inner heat insulation plate is laid on the inner wall of the box shell, and the ventilation mechanism is laid on the inner wall of the box shell; shutters are arranged on the two side walls of the box shell, and fixed ventilation openings are correspondingly formed in the positions, corresponding to ventilation seams of the shutters, of the inner heat insulation plate; the ventilation mechanism can open or close the fixed ventilation opening; the controller and the temperature sensor are arranged in a cavity of the box shell, and the controller collects signals of the temperature sensor and controls the ventilation mechanism to act. The inner heat insulation plate is arranged on the inner side of the box shell, the situation that the metering box changes along with the environment temperature is improved, and meanwhile the ventilation mechanism is arranged for cooling.

Description

Technical Field

[0001] The present invention relates to the technical field of metering boxes, and in particular to a metering box with intelligent temperature control and a working method thereof. Background Art

[0002] The electricity meter box is mainly used to install electricity meters and other related equipment to measure, control and protect electricity use. Its core function is to ensure the accuracy and safety of electricity metering. The shell of the existing electricity meter box is mainly made of plastic, fiberglass or stainless steel galvanized sheet, etc. Although it can play a physical protective role, there is no insulation and temperature control facilities. The applicant has been engaged in the production, sales and after-sales work of electricity meter boxes for a long time, and found that an important reason for the burning of the existing electricity meter boxes is that the wiring head of the circuit breaker is not connected, causing the resistance to heat and spark. However, when installing the line, the electrician master often tightens the wire head with the joint bolts. Why do the joint bolts loosen later? The reason is that most of the electricity meter boxes are in outdoor environments, the external environment temperature changes, and the box shell of the electricity meter box has no heat insulation effect, which causes the electrical components to be placed directly outdoors, suddenly cold and hot, and the thermal stress causes the joint bolts to loosen, and then the wiring head is connected. This situation is more common in the northern region of my country, where the temperature difference between day and night is large. Using high-power electrical appliances after a false connection occurs can easily lead to safety accidents in the electricity meter box.

[0003] In order to overcome the above problems, a metering box with intelligent temperature control and a working method thereof are needed. Summary of the invention

[0004] The purpose of the present invention is to provide a metering box with intelligent temperature control, wherein an inner heat insulation board is arranged inside the box shell to improve the metering box's temperature change with the ambient temperature, and a ventilation mechanism is arranged to reduce the temperature.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a metering box with intelligent temperature control, comprising a box shell and electric energy control metering components, and also comprising an inner heat insulation board, a ventilation mechanism, a controller and a temperature sensor. The inner heat insulation board is laid on the inner wall of the box shell, and shutters are provided on both side walls of the box shell. The inner heat insulation board has fixed vents corresponding to the positions of the shutter ventilation gaps; the ventilation mechanism can open or close the fixed vents; the controller and the temperature sensor are arranged in the cavity of the box shell, and the controller collects the temperature sensor signal and controls the operation of the ventilation mechanism.

[0007] Furthermore, the ventilation mechanism includes a sliding insulation board and a driving assembly, and side guide grooves are vertically arranged at the front and rear ends of the inner insulation board on the inner side of the shutter, the sliding insulation board is stacked on the inner wall of the inner insulation board, and the sliding insulation board is slidably connected in the side guide groove; the sliding insulation board is provided with sliding vents corresponding to the fixed vents; the driving assembly drives the sliding insulation board to slide vertically back and forth in the side guide grooves.

[0008] Furthermore, the driving assembly includes a connecting rod, an eccentric shaft, a transmission rod group and a reduction motor, and a vertical partition is vertically arranged in the middle of the box shell; the two ends of the eccentric shaft are horizontally mounted under the sliding insulation board through bearing supports, and the eccentric shaft is connected to the pin base at the bottom of the sliding insulation board through the connecting rod pin; the reduction motor is installed at the lower part of the vertical partition, and the reduction motor has a dual-axis output and the two horizontal axes are respectively connected to the eccentric shafts on the left and right sides through a group of the transmission rod group.

[0009] Furthermore, the transmission rod group includes transmission rod 1, transmission rod 2 and a top screw. The root of transmission rod 2 is connected to an output shaft of the reduction motor through a coupling. Transmission rod 2 is coaxially provided with a sleeve head toward one end of the eccentric shaft. One end of transmission rod 1 is inserted into the sleeve head and locked by the top screw, and the other end of transmission rod 1 is provided with a spline head; the spline head is inserted into the spline hole at the end of the eccentric shaft.

[0010] Furthermore, a positioning flat platform is provided at one end of the transmission rod inserted into the sleeve head, and the inner end of the top screw is pressed tightly on the positioning flat platform.

[0011] Furthermore, it also includes fan 1, which is installed on the back of the sliding insulation board. The number of fans 1 is more than one and they are arranged at equal intervals along the height direction of the sliding insulation board; the controller controls the operation of fan 1.

[0012] Furthermore, a clearance groove is opened on the outer wall of the sliding insulation board below the sliding vent, and a baffle is arranged in the clearance groove; when the sliding insulation board closes the fixed vent, the baffle shields the sliding gap between the inner insulation board and the sliding insulation board to prevent dust.

[0013] Furthermore, the baffle bar is made of a rubber strip with good weather resistance, a baffle bar installation groove is horizontally arranged on the bottom surface of the give way groove, the root of the baffle bar is bonded in the baffle bar installation groove, the depth of the give way groove is greater than the thickness of the baffle bar, and the height from the baffle bar installation groove to the top surface of the give way groove is greater than the cantilever length of the baffle bar.

[0014] Furthermore, it also includes a dehumidification mechanism, which includes fan 2 and a drying air duct. A long hole for passing cables is opened in the middle and lower part of the vertical partition, and a connecting hole is opened at the top of the vertical partition. Fan 2 and the drying air duct are coaxially installed on the left and right sides of the connecting hole; a drying unit is arranged in the drying air duct.

[0015] The present invention also discloses a working method of a metering box with intelligent temperature control, which improves the heat insulation effect of the box shell by laying a heat preservation layer structure inside the box shell, and performs ventilation and cooling by closing and opening the shutters through a ventilation mechanism.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] The metering box with intelligent temperature control of the present invention forms an integrally closed heat-insulating layer by laying an inner heat-insulating plate on the inner wall of the box shell, which can block the influence of the ambient temperature on the internal electrical components and reduce the thermal stress deformation caused by sudden cooling and heating; by adding the ventilation mechanism to open or close all the fixed vents, ventilation and heat dissipation can be achieved when the internal temperature is high, and isolation and heat preservation can be achieved when heat dissipation is not required, so that the metering box can achieve controllable temperature operation in a wider range. Automatic control is achieved by setting a controller and a temperature sensor. The metering box with intelligent temperature control of the present invention is provided with an inner heat-insulating plate on the inner side of the box shell to improve the metering box's change with the ambient temperature. At the same time, a ventilation mechanism is provided to cool down the temperature, so that the overall operating temperature is controllable, and the safe operation stability of the equipment is improved.

[0018] In addition, by stacking a sliding heat insulation board on the inner wall of the inner heat insulation board, ventilation and heat dissipation are achieved when the sliding vents overlap with the fixed vents, and heat insulation is achieved when the sliding heat insulation board blocks the fixed vents, and the driving assembly realizes vertical repeated pushing and pulling of the sliding heat insulation board. By setting a dual-axis output reduction motor to synchronously drive the eccentric shafts on both sides, the sliding heat insulation boards on both sides can synchronously open or close the fixed vents, which can achieve cross-hall wind to improve heat dissipation efficiency; by setting the connecting rod and the eccentric shaft, the rotational motion can be converted into a short-stroke reciprocating linear motion to achieve the switching action of the sliding heat insulation board. By plugging the sleeve head and the transmission rod 1, the transmission rod 1 can be disassembled to achieve a slight adjustment of the eccentric shaft, thereby ensuring the synchronous operation of the eccentric shafts on both sides, and the sliding heat insulation board is synchronously driven to rise and fall. By setting the positioning flat table, it can also ensure that the deflection angles of the two transmission rods 1 at both ends are consistent, while avoiding the occurrence of the transmission rod 1 rotating relative to the sleeve head. By adding a fan 1 on the sliding insulation board, when the fixed vent is opened, the controller controls the fan 1 to run, which can realize active discharge, increase the flow speed of the wind, and realize rapid cooling of the inner cavity of the metering box. By adding a clearance groove and a baffle, when the fixed vent is closed, the cantilever end of the baffle hangs down to the bottom surface of the fixed vent, and the sliding joint between the inner insulation board and the sliding insulation board is dust-proof and shielded, so as to avoid the wear of the inner insulation board and the sliding insulation board caused by the dust particles squeezed into the sliding joint, and the gap increases, which will lead to insulation failure. By reasonably setting the depth of the clearance groove and the height of the baffle installation groove to the top surface of the clearance groove, the cantilever end of the baffle can be stored in the upper space of the clearance groove when the fixed vent is opened. By setting the fan 2 and the drying air duct on the top of the vertical partition, the fan 2 can make the cavity where the vacuum circuit breaker is located and the cavity where the electric energy meter is located flow in circulation when it is working. During the circulation process, the desiccant box dries and filters the air to realize humidity control and avoid electrical safety accidents caused by excessive humidity.

[0019] The working method of the metering box with intelligent temperature control of the present invention reduces the impact of temperature changes of the external environment on the metering box by heat-insulating the box shell, avoids loosening of threaded fasteners, and improves the stability of the metering box; and reduces the humidity of the air in the cavity by performing internal circulation drying in the box body, thereby reducing the influence of moisture on electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the main structure of the metering box with intelligent temperature control of the present invention;

[0022] Figure 2 This is a schematic diagram of the main structure of the ventilation mechanism in the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the partial enlarged structure of the middle I part;

[0024] Figure 4 It is a schematic diagram of the local structure of the sliding heat insulation board in the lower state in the present invention;

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the transmission rod assembly in the present invention;

[0026] Figure 6 It is a schematic diagram of the main structure of the dehumidification mechanism in the present invention.

[0027] Explanation of the reference numerals: 1. box shell; 101. vertical partition; 102. shutter; 2. inner insulation board; 201. fixed vent; 202. side guide groove; 3. sliding insulation board; 301. sliding vent; 302. clearance groove; 303. baffle installation groove; 304. baffle; 305. pin base; 4. connecting rod; 5. eccentric shaft; 6. transmission rod one; 601. spline head; 602. positioning flat table; 7. transmission rod two; 701. sleeve head; 8. reduction motor; 9. fan one; 10. controller; 11. temperature sensor; 12. fan two; 13. drying air duct; 131. desiccant extraction box; 14. humidity sensor; 15. vacuum circuit breaker; 16. current transformer; 17. branch circuit breaker; 18. electric energy meter. DETAILED DESCRIPTION

[0028] The core of the present invention is to provide a metering box with intelligent temperature control and a working method thereof. An inner heat insulation board is arranged inside the box shell to improve the metering box's temperature change with the ambient temperature, and a ventilation mechanism is arranged to cool down.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 therefore cannot be understood as a limitation on the present invention.

[0031] With reference to the accompanying drawings, Figure 1 This is a schematic diagram of the main structure of the metering box with intelligent temperature control of the present invention; Figure 2 This is a schematic diagram of the main structure of the ventilation mechanism in the present invention; Figure 3 for Figure 2 A schematic diagram of the partial enlarged structure of the middle I part; Figure 4 It is a schematic diagram of the local structure of the sliding heat insulation board in the lower state in the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the transmission rod assembly in the present invention; Figure 6 It is a schematic diagram of the main structure of the dehumidification mechanism in the present invention.

[0032] In a specific embodiment, Figures 1 to 6 As shown, the meter box with intelligent temperature control of the present invention includes a box shell 1 and electric energy control and metering components. Like the existing meter boxes, the electric energy control and metering components include a vacuum circuit breaker 15, a current transformer 16, a branch circuit breaker 17 and an electric energy meter 18. The circuit connection part is consistent with the prior art and will not be repeated here. The important difference between the present invention and the existing meter boxes is that the meter box with intelligent temperature control of the present invention also includes an inner insulation board 2, a ventilation mechanism, a controller 10 and a temperature sensor 11. An inner insulation board 2 is laid on the inner wall of the box shell 1, and the inner insulation board 2 is attached to the inner wall of the box shell 1 and the inner wall of the box door. The inner insulation board 2 performs a closed isolation on the inner cavity of the box shell 1. Shutters 102 are provided on both side walls of the box shell 1, and the inner insulation board 2 has fixed vents 201 corresponding to the ventilation gaps of the shutters 102. Figures 1 to 4 As shown, the fixed vents 201 are in the form of long strip holes, and the number of the fixed vents 201 is multiple and is arranged at equal intervals along the height direction. The ventilation mechanism can open or close all the fixed vents 201, ventilate and dissipate heat when opened, and isolate and keep warm when closed. The controller 10 and the temperature sensor 11 are arranged in the cavity of the box shell 1, and the controller 10 collects the signal of the temperature sensor 11 and controls the operation of the ventilation mechanism.

[0033] Obviously, the controller 10 can be a temperature control digital instrument or a single chip intelligent controller, which can read and collect the temperature sensor 11 signal and output the control switch value and analog signal.

[0034] By laying an inner insulation board 2 on the inner wall of the box shell 1, an integrally closed insulation layer is formed, which can block the influence of the ambient temperature on the internal electrical components and reduce the thermal stress deformation caused by sudden cooling and heating; by adding the ventilation mechanism to open or close all the fixed vents 201, ventilation and heat dissipation can be achieved when the internal temperature is high, and isolation and heat preservation can be achieved when heat dissipation is not required, and the metering box can achieve controllable temperature operation in a wider range. Automatic control is achieved by setting the controller 10 and the temperature sensor 11. The metering box with intelligent temperature control of the present invention is provided with an inner insulation board on the inner side of the box shell to improve the metering box changes with the ambient temperature. At the same time, a ventilation mechanism is provided to cool down the temperature. The overall operating temperature is controllable, which improves the safety and stability of the equipment operation.

[0035] In a specific embodiment of the present invention, Figure 1 and Figure 2 As shown, the ventilation mechanism includes a sliding heat insulation board 3 and a driving assembly. Side guide grooves 202 are vertically arranged at the front and rear ends of the inner heat insulation board 2 inside the shutter 102. The sliding heat insulation board 3 is stacked on the inner wall of the inner heat insulation board 2, and the sliding heat insulation board 3 is slidably connected in the side guide groove 202. The sliding heat insulation board 3 is provided with sliding vents 301 corresponding to the fixed vents 201. The number of the sliding vents 301 and the fixed vents 201 is the same and they are arranged one by one. The driving assembly drives the sliding heat insulation board 3 to slide back and forth vertically in the side guide groove 202.

[0036] By stacking the sliding insulation board 3 on the inner wall of the inner insulation board 2, ventilation and heat dissipation are achieved when the sliding vents 301 overlap with the fixed vents 201, and heat insulation is achieved when the sliding insulation board 3 blocks the fixed vents 201, and the driving component can realize vertical repeated pushing and pulling of the sliding insulation board 3.

[0037] Specifically, if Figure 2 and Figure 5 As shown, the driving assembly includes a connecting rod 4, an eccentric shaft 5, a transmission rod group and a reduction motor 8. A vertical partition 101 is vertically arranged in the middle of the box shell 1. The vertical partition 101 is a C-shaped partition with long strip ventilation holes. The two ends of the eccentric shaft 5 are horizontally mounted below the sliding insulation board 3 through bearing supports. The eccentric shaft 5 is connected to the pin base 305 at the bottom of the sliding insulation board 3 through the connecting rod 4 pin, which is similar to the crank connecting rod structure. During the rotation of the eccentric shaft 5, the pin base 305 is pushed and pulled back and forth, thereby realizing the reciprocating linear motion of the sliding insulation board 3. The reduction motor 8 is installed at the lower part of the vertical partition 101. The reduction motor 8 has a dual-axis output and the two horizontal axes are respectively connected to the eccentric shafts 5 on the left and right sides through a group of transmission rod groups.

[0038] Obviously, the driving assembly may also adopt a linearly driven electric push rod, the root of which is fixed on the bottom wall of the housing 1, the working end of which is connected to the bottom end of the sliding heat insulation board 3, and the sliding heat insulation board 3 is reciprocated linearly by the electric push rod. It is necessary to set at least two electric push rods on the left and right sides of the housing 1, and similar technical effects can also be achieved, so similar technical solutions all fall within the protection scope of the present invention.

[0039] By setting up a dual-axis output reduction motor 8 to synchronously drive the eccentric shafts 5 on both sides, the sliding insulation panels 3 on both sides can synchronously open or close the fixed vents 201, which can achieve through-draft and improve heat dissipation efficiency; through the setting of the connecting rod 4 and the eccentric shaft 5, the rotational motion can be converted into a short-stroke reciprocating linear motion, thereby realizing the switching action of the sliding insulation panel 3.

[0040] In a specific embodiment of the present invention, Figure 2 and Figure 5 As shown, the transmission rod group includes a transmission rod 1 6, a transmission rod 2 7 and a top screw. The root of the transmission rod 2 7 is connected to an output shaft of the reduction motor 8 through a coupling, and a sleeve head 701 is coaxially arranged at one end of the transmission rod 2 7 facing the eccentric shaft 5, and one end of the transmission rod 1 6 is inserted into the sleeve head 701 and locked by the top screw. A spline head 601 is arranged at the other end of the transmission rod 1 6, and the spline head 601 is inserted into the spline hole at the end of the eccentric shaft 5.

[0041] Specifically, if Figure 2 and Figure 5 As shown, a positioning flat platform 602 is provided at one end of the transmission rod 6 inserted into the sleeve head 701, and the inner end of the top screw is pressed tightly on the positioning flat platform 602.

[0042] By plugging the sleeve head 701 and the transmission rod 6, the transmission rod 6 can be disassembled to achieve a slight adjustment of the eccentric shaft 5, thereby ensuring that the eccentric shafts 5 on both sides run synchronously, and the sliding heat insulation board 3 is synchronously driven to rise and fall. By setting the positioning flat table 602, it can also ensure that the deflection angles of the two transmission rods 6 at both ends are consistent, while avoiding the transmission rod 6 from rotating relative to the sleeve head 701.

[0043] In a specific embodiment of the present invention, Figure 1 As described above, the metering box with intelligent temperature control of the present invention further includes a fan 9, and a fan 9 is installed on the back of a sliding heat insulation board 3, that is, only one side of the sliding heat insulation board 3 needs to be installed with a fan. The number of fans 9 is more than one and they are arranged at equal intervals along the height direction of the sliding heat insulation board 3. The number of fans 9 is determined according to the length of the sliding heat insulation board 3, and the controller 10 controls the operation of the fans 9.

[0044] By adding a fan 9 on the sliding insulation board 3, when the fixed vent 201 is opened, the controller 10 controls the operation of the fan 9, which can achieve active exhaust, increase the flow speed of the through wind, and achieve rapid cooling of the inner cavity of the metering box.

[0045] In a specific embodiment of the present invention, Figures 2 to 4 As shown, the outer wall of the sliding heat insulation board 3 is provided with a clearance groove 302 below the sliding vent 301, and a blocking bar 304 is arranged in the clearance groove 302. When the sliding heat insulation board 3 closes the fixed vent 201, the blocking bar 304 shields the sliding gap between the inner heat insulation board 2 and the sliding heat insulation board 3 from dust.

[0046] Specifically, if Figure 3 and Figure 4 As shown, the baffle 304 is made of a rubber strip with good weather resistance, a baffle installation groove 303 is horizontally arranged on the bottom surface of the give way groove 302, the root of the baffle 304 is bonded in the baffle installation groove 303, the depth of the give way groove 302 is greater than the thickness of the baffle 304, and the height from the baffle installation groove 303 to the top surface of the give way groove 302 is greater than the cantilever length of the baffle 304.

[0047] Specifically, the inner edge of the bottom surface of the fixed vent 201 is provided with rounded corners to prevent the blocking bar 304 from being scratched and damaged.

[0048] By adding the clearance groove 302 and the baffle 304, when the fixed vent 201 is closed, the cantilever end of the baffle 304 hangs down to the bottom surface of the fixed vent 201, and the sliding gap between the inner heat insulation board 2 and the sliding heat insulation board 3 is dust-proof and shielded, so as to prevent dust particles from entering the sliding gap and causing wear of the inner heat insulation board 2 and the sliding heat insulation board 3, and increase the gap, which will lead to insulation failure. By reasonably setting the depth of the clearance groove 302 and the height from the baffle installation groove 303 to the top surface of the clearance groove 302, the cantilever end of the baffle 304 can be stored in the upper space of the clearance groove 302 when the fixed vent 201 is open.

[0049] In a specific embodiment of the present invention, Figure 1 and Figure 6 As shown, the metering box with intelligent temperature control of the present invention also includes a dehumidification mechanism, which includes a second fan 12 and a drying air duct 13. A long hole for passing cables is provided in the middle and lower part of the vertical partition 101, which also serves as a ventilation hole to connect the cavities on both sides of the vertical partition 101. A connecting hole is provided at the top of the vertical partition 101, and the second fan 12 and the drying air duct 13 are coaxially installed on the left and right sides of the connecting hole. A drying unit is arranged in the drying air duct 13.

[0050] Specifically, if Figure 6As shown, a desiccant extraction box 131 is provided in the drying air cylinder 13, and the desiccant extraction box 131 can be inserted and inserted into the side opening of the drying air cylinder 13. The desiccant extraction box 131 is a desiccant particle bound by a wire mesh, and the exhaust air of the fan 2 12 needs to first pass through the desiccant extraction box 131 before being transported to the cavity where the electric energy meter 18 is located.

[0051] Specifically, if Figure 1 As shown, the metering box with intelligent temperature control of the present invention also includes a humidity sensor 14, which is arranged in the cavity where the electric energy meter 18 is located. The humidity sensor 14 is electrically connected to the controller 10, and the controller 10 controls the operation of the fan 2 12.

[0052] The fan 2 12 and the drying air duct 13 are arranged on the top of the vertical partition 101. When the fan 2 12 is working, the cavity where the vacuum circuit breaker 15 is located and the cavity where the electric energy meter 18 is located can circulate air. During the circulation process, the desiccant box 131 dries and filters the air to control the humidity and avoid electrical safety accidents caused by excessive humidity.

[0053] The working principle of the metering box with intelligent temperature control of the present invention is: if the temperature difference between day and night in the ambient temperature is large, and the temperature feedback from the temperature sensor 11 in the metering box is within the set range, the fixed vent 201 is in a closed state. Because of the insulation layer protection of the inner insulation board 2, the temperature change in the inner cavity of the metering box will not be too drastic, which reduces the influence of thermal stress deformation, and the threaded parts that tighten the wire joint will not loosen, so the metering box can continue to operate stably. When the temperature feedback from the temperature sensor 11 exceeds the upper limit of the set temperature range, the controller 10 controls the reduction motor 8 to start, and the reduction motor 8 rotates synchronously through the transmission rod 1 6 and the transmission rod 2 7 to drive the eccentric shaft 5 to rotate, and the eccentric shaft 5 drives the connecting rod 4 to pull the sliding insulation board 3 downward. The sliding vent 301 is aligned with the fixed vent 201, and the controller 10 controls the reduction motor 8 to stop, and the shutters 102 on the two side walls of the box housing 1 are opened synchronously to generate a through wind to dissipate heat from the internal electrical components. If the gravity wind is not enough to quickly cool down, the controller 10 controls the fan 1 9 to start, promote the flow rate of the through wind, and quickly cool down. When the temperature drops to the set temperature, the controller 10 controls the reduction motor 8 to start again, and the eccentric shaft 5 drives the connecting rod 4 to push the sliding heat insulation board 3 upward, and the sliding vent 301 and the fixed vent 201 are staggered to close the fixed vent 201, so as to achieve complete heat insulation. At the same time, the cantilever end of the blocking bar 304 falls from the upper space of the clearance groove 302 and hangs down to the bottom surface of the fixed vent 201, so as to prevent dust from entering the sliding gap between the inner heat insulation board 2 and the sliding heat insulation board 3, and to prevent dust particles from entering the sliding gap and causing wear of the inner heat insulation board 2 and the sliding heat insulation board 3, and also play a certain role in heat insulation.

[0054] In summary, the metering box with intelligent temperature control of the present invention forms an integrally closed thermal insulation layer by laying an inner thermal insulation board 2 on the inner wall of the box shell 1, which can block the influence of the ambient temperature on the internal electrical components and reduce the thermal stress deformation caused by sudden cooling and heating; by adding the ventilation mechanism to open or close all the fixed vents 201, ventilation and heat dissipation can be achieved when the internal temperature is high, and isolation and heat preservation can be achieved when heat dissipation is not required, and the metering box can achieve controllable temperature operation in a wider range. Automatic control is achieved by setting the controller 10 and the temperature sensor 11. The metering box with intelligent temperature control of the present invention is provided with an inner thermal insulation board on the inner side of the box shell to improve the metering box changes with the ambient temperature. At the same time, a ventilation mechanism is provided to cool down the temperature. The overall operating temperature is controllable, which improves the safety and stability of the equipment. In addition, by stacking the sliding heat insulation board 3 on the inner wall of the inner heat insulation board 2, ventilation and heat dissipation are achieved when the sliding vent 301 overlaps with the fixed vent 201, and heat insulation is achieved when the sliding heat insulation board 3 blocks the fixed vent 201, and the driving component realizes vertical repeated pushing and pulling of the sliding heat insulation board 3. By setting a dual-axis output reduction motor 8 to synchronously drive the eccentric shafts 5 on both sides, the sliding heat insulation boards 3 on both sides can be opened or closed synchronously, and the heat dissipation efficiency can be improved by passing wind; by setting the connecting rod 4 and the eccentric shaft 5, the rotational motion can be converted into a short-stroke reciprocating linear motion to realize the switching action of the sliding heat insulation board 3. By plugging the sleeve head 701 and the transmission rod 16, the transmission rod 16 can be disassembled to achieve a slight adjustment of the eccentric shaft 5, thereby ensuring that the eccentric shafts 5 on both sides run synchronously, and the sliding heat insulation board 3 is synchronously driven to rise and fall. By setting the positioning flat table 602, it is also possible to ensure that the deflection angles of the two transmission rods 6 at both ends are consistent, and at the same time, the transmission rod 6 is prevented from rotating relative to the sleeve head 701. By adding a fan 9 on the sliding heat insulation board 3, when the fixed vent 201 is opened, the controller 10 controls the fan 9 to run, which can achieve active discharge, increase the flow rate of the through wind, and achieve rapid cooling of the inner cavity of the metering box. By adding a clearance groove 302 and a baffle 304, when the fixed vent 201 is closed, the cantilever end of the baffle 304 droops to the bottom surface of the fixed vent 201, and the sliding seam between the inner heat insulation board 2 and the sliding heat insulation board 3 is dust-proof and shielded, so as to avoid dust particles squeezed into the sliding seam, causing wear of the inner heat insulation board 2 and the sliding heat insulation board 3, and increasing the gap, which will lead to insulation failure. By properly setting the depth of the clearance groove 302 and the height from the retaining bar installation groove 303 to the top surface of the clearance groove 302 , the cantilever end of the retaining bar 304 can be accommodated in the upper space of the clearance groove 302 when the fixed vent 201 is opened.The fan 2 12 and the drying air duct 13 are arranged on the top of the vertical partition 101. When the fan 2 12 is working, the cavity where the vacuum circuit breaker 15 is located and the cavity where the electric energy meter 18 is located can circulate air. During the circulation process, the desiccant box 131 dries and filters the air to control the humidity and avoid electrical safety accidents caused by excessive humidity.

[0055] The present invention also discloses a working method of a metering box with intelligent temperature control, which improves the heat insulation effect of the box shell by laying a heat preservation layer structure inside the box shell, and performs ventilation and cooling by closing and opening the shutters through a ventilation mechanism.

[0056] Specifically, the working method of the metering box with intelligent temperature control of the present invention also includes an internal circulation drying process, which circulates air in the chambers on both sides of the vertical partition 101 and dries the air during the flow process, thereby reducing the humidity of the air in the chamber.

[0057] The working method of the metering box with intelligent temperature control of the present invention reduces the impact of temperature changes of the external environment on the metering box by heat-insulating the box shell, avoids loosening of threaded fasteners, and improves the stability of the metering box; and reduces the humidity of the air in the cavity by performing internal circulation drying in the box body, thereby reducing the influence of moisture on electrical components.

[0058] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0059] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A metering box with intelligent temperature control, comprising a box housing (1) and electric energy control and metering components, characterized in that: The invention also comprises an inner heat insulation board (2), a ventilation mechanism, a controller (10) and a temperature sensor (11); the inner heat insulation board (2) is laid on the inner wall of the box shell (1); shutters (102) are provided on both side walls of the box shell (1); the inner heat insulation board (2) is provided with fixed ventilation openings (201) at the ventilation slot positions of the shutters (102); the ventilation mechanism can open or close the fixed ventilation openings (201); the controller (10) and the temperature sensor (11) are arranged in the cavity of the box shell (1); the controller (10) collects signals from the temperature sensor (11) and controls the operation of the ventilation mechanism.

2. The metering box with intelligent temperature control according to claim 1 is characterized in that: The ventilation mechanism comprises a sliding heat insulation board (3) and a driving assembly; side guide grooves (202) are vertically arranged at the front and rear ends of the inner heat insulation board (2) inside the shutter (102); the sliding heat insulation board (3) is stacked on the inner side wall of the inner heat insulation board (2); the sliding heat insulation board (3) is slidably connected in the side guide groove (202); a sliding vent (301) corresponding to the fixed vent (201) is opened on the sliding heat insulation board (3); and the driving assembly drives the sliding heat insulation board (3) to slide back and forth vertically in the side guide groove (202).

3. The metering box with intelligent temperature control according to claim 2 is characterized in that: The driving assembly comprises a connecting rod (4), an eccentric shaft (5), a transmission rod group and a reduction motor (8); a vertical partition (101) is vertically arranged in the middle of the box shell (1); the two ends of the eccentric shaft (5) are horizontally mounted below the sliding heat insulation board (3) through bearing supports, and the eccentric shaft (5) is connected to the pin base (305) at the bottom of the sliding heat insulation board (3) through the connecting rod (4) pin; the reduction motor (8) is installed at the bottom of the vertical partition (101), and the reduction motor (8) has a double-axis output and the two horizontal axes are respectively connected to the eccentric shafts (5) on the left and right sides through a group of the transmission rod group.

4. The metering box with intelligent temperature control according to claim 3 is characterized in that: The transmission rod group comprises a transmission rod 1 (6), a transmission rod 2 (7) and a top screw. The root of the transmission rod 2 (7) is connected to an output shaft of the reduction motor (8) through a coupling. The transmission rod 2 (7) is coaxially provided with a sleeve head (701) at one end facing the eccentric shaft (5). One end of the transmission rod 1 (6) is inserted into the sleeve head (701) and locked by the top screw. The other end of the transmission rod 1 (6) is provided with a spline head (601); the spline head (601) is inserted into the spline hole at the end of the eccentric shaft (5).

5. The metering box with intelligent temperature control according to claim 4 is characterized in that: One end of the transmission rod 1 (6) inserted into the sleeve head (701) is provided with a positioning flat platform (602), and the inner end of the top screw is pressed tightly on the positioning flat platform (602).

6. The metering box with intelligent temperature control according to claim 2 is characterized in that: It also includes a fan (9), which is installed on the back of a sliding insulation board (3), and the number of the fan (9) is more than one and is arranged at equal intervals along the height direction of the sliding insulation board (3); the controller (10) controls the operation of the fan (9).

7. The metering box with intelligent temperature control according to claim 2 is characterized in that: The outer wall of the sliding heat insulation board (3) is provided with a clearance groove (302) below the sliding vent (301), and a retaining bar (304) is arranged in the clearance groove (302); when the sliding heat insulation board (3) closes the fixed vent (201), the retaining bar (304) shields the sliding gap between the inner heat insulation board (2) and the sliding heat insulation board (3) from dust.

8. The metering box with intelligent temperature control according to claim 7 is characterized in that: The baffle (304) is specifically made of a rubber strip with good weather resistance, a baffle installation groove (303) is horizontally arranged on the bottom surface of the clearance groove (302), the root of the baffle (304) is bonded in the baffle installation groove (303), the depth of the clearance groove (302) is greater than the thickness of the baffle (304), and the height from the baffle installation groove (303) to the top surface of the clearance groove (302) is greater than the cantilever length of the baffle (304).

9. The metering box with intelligent temperature control according to claim 3, characterized in that: The invention also comprises a dehumidification mechanism, wherein the dehumidification mechanism comprises a second fan (12) and a drying air duct (13); a long hole for passing cables is provided at the middle and lower part of the vertical partition (101); a connecting hole is provided at the top of the vertical partition (101); the second fan (12) and the drying air duct (13) are coaxially mounted on the left and right sides of the connecting hole; and a drying unit is provided in the drying air duct (13).

10. A working method of a metering box with intelligent temperature control, characterized in that: The heat insulation effect of the box shell is improved by laying a heat-insulating layer structure inside the box shell, and ventilation and cooling are carried out by closing and opening the shutters through the ventilation mechanism.

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