An intelligent electricity meter

Abstract

The application belongs to the technical field of electric meter, and specifically discloses an intelligent electric meter; the electric meter comprises a distribution box; a plurality of electric meters are installed in the distribution box; an exhaust fan is arranged on the outer side of the distribution box and extends to the inner side of the distribution box; an exhaust cooling device is arranged on the electric meter; the exhaust cooling device comprises a heat dissipation cavity arranged in the electric meter; a through square groove is arranged on the side surface of the electric meter and communicates with the heat dissipation cavity; an exhaust hollow square tube is installed at the through square groove and is matched with the through square groove; one end of the exhaust hollow square tube is located in the distribution box, and the other end of the exhaust hollow square tube is located in the through square groove; the heat dissipation gas can be cooled, the heat is prevented from being concentrated in the distribution box due to the high temperature of the heat dissipation gas, and the adjacent electric meter surface is prevented from being affected by the heat for a long time, so that the deformation and accelerated aging of the shell and the internal material of the electric meter due to overheating are avoided, the service life of the electric meter is prolonged, the measurement accuracy and the operation stability of the intelligent electric meter are prevented from being affected by the high temperature in the box, and the limitation of the intelligent electric meter in practical application is reduced.

Description

Technical Field

[0001] This invention belongs to the field of electricity meter technology, specifically a smart meter. Background Technology

[0002] Smart meters are one of the core devices for data acquisition in smart grids. They not only undertake the tasks of collecting, measuring, and transmitting raw electrical energy data, but also form the basis for information integration, analysis, optimization, and display. In practical applications, several smart meters are usually integrated into the same distribution box, and the heat dissipation vents of the meters are often arranged facing each other. This layout causes heat to concentrate in the distribution box and act on the surfaces of adjacent smart meters for a long time. This can easily cause the outer casing and internal materials of the meters to deform and age due to overheating, significantly shortening the lifespan of the meters. At the same time, excessively high temperatures inside the box can also directly affect the metering accuracy and operational stability of the smart meters, ultimately limiting their practical application. Summary of the Invention

[0003] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides a smart meter that effectively solves the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a smart meter, comprising a distribution box; a plurality of meters are installed inside the distribution box; an exhaust fan is provided on the outside of the distribution box, extending into the inside of the distribution box; an exhaust cooling device is provided on the meter for reducing the temperature of the exhaust air during exhaust; the exhaust cooling device includes a heat dissipation cavity disposed inside the meter;

[0005] A through-slot is installed on the side of the meter and communicates with the heat dissipation cavity;

[0006] A hollow square exhaust duct is installed at the through-groove, with the two fitting together. One end of the hollow square exhaust duct is located inside the distribution box, and the other end is located inside the through-groove. The meter is equipped with a locking and fixing unit for fixing the hollow square exhaust duct to the meter. The locking and fixing unit includes a positioning column, which is fixedly connected to the hollow square exhaust duct. The end of the positioning column faces the meter. A filter plate is provided on the side of the hollow square exhaust duct away from the meter. A pneumatic extension unit is provided inside the hollow square exhaust duct to prevent the air discharged from the hollow square exhaust duct from accumulating around the filter plate. The pneumatic extension unit includes a T-shaped pipe installed inside the hollow square exhaust duct. Valve A and valve B are respectively installed at both ends inside the hollow square exhaust duct.

[0007] Preferably, it includes a drive motor, which is installed on the outside of the hollow square exhaust pipe; a drive disc is installed on the output end of the drive motor;

[0008] The drive slide column is installed on the edge of the drive disc away from the drive motor.

[0009] The guide plate is connected to the side of the exhaust hollow square tube, and its installation position is on the same side as the drive motor.

[0010] A guide cylinder is connected through the guide base plate to the side near the meter; the guide cylinder and the guide base plate are slidably fitted; a guide block is installed at one end of the guide cylinder near the meter, and a bent column is installed at the other end; the guide block is located on the side of the drive disk away from the drive motor; a drive groove is provided on the side of the guide block near the drive disk; the drive groove is slidably fitted with the drive column.

[0011] Preferably, it includes an air-generating square plate, which is fitted and connected to the exhaust hollow square tube, and the two are slidably engaged; the air-generating square plate is located between valve A and valve B; an exhaust valve is installed on the air-generating square plate; the bent column passes through the filter square plate and valve A, and is connected to the air-generating square plate; the bent column is slidably engaged with the filter square plate and valve A respectively;

[0012] A refrigeration pipe is connected to the inner wall of the hollow square exhaust pipe; the refrigeration pipe is located between valve A and valve B; a main force block is installed on the side of the air-generating square plate near valve A.

[0013] Preferably, it includes a positioning groove, which is disposed on the side of the meter near the positioning column; a matching positioning plate is installed in the positioning groove, and the two slide in cooperation.

[0014] A positioning spring is disposed within a positioning groove; one end of the positioning spring is fixedly connected to the positioning groove, and the other end is fixedly connected to a positioning plate; the side of the positioning plate closest to the positioning column is located on the moving path of the positioning column toward the end of the meter; a through-hole retaining slot is installed on the positioning column.

[0015] Preferably, it includes a limiting slide groove disposed on the side of the meter; a limiting slide post is installed in the limiting slide groove;

[0016] A limiting slider is fitted into a limiting groove; a limiting slide post is connected through the limiting slider; the limiting slider slides in conjunction with the limiting groove and the limiting slide post.

[0017] A limiting spring is sleeved on a limiting slide post; one end of the limiting spring is fixedly connected to a limiting slide groove, and the other end is fixedly connected to a limiting slider.

[0018] The retaining rod is fixedly installed on the limit slider; when the exhaust hollow square tube is installed on the meter, the limit spring is at its maximum buffering level, and at this time the retaining rod is connected to the retaining slot.

[0019] Preferably, a brake base is installed inside the hollow square exhaust pipe and connected to the outer wall of the T-shaped pipe; a brake column is slidably connected inside the T-shaped pipe; a driven power block is installed at the end of the brake column near the air-generating square plate; the driven power block is located in the moving path of the driving power block.

[0020] Preferably, a brake spring is fitted on the brake column; one end of the brake spring is fixedly connected to the driven block, and the other end is fixedly connected to the brake base; an extension pipe is installed on the T-shaped pipe, and the two are connected.

[0021] Preferably, the end of the extension tube passes through valve A and the filter plate in sequence, and is equipped with several high-pressure nozzles; the high-pressure nozzles are located on the side of the filter plate away from the meter.

[0022] Preferably, the hollow square exhaust tube is provided with a quick-control loading and unloading assembly; the quick-control loading and unloading assembly includes an auxiliary cylinder, which is fixedly connected to the side of the hollow square exhaust tube; an auxiliary cross plate is slidably connected to the auxiliary cylinder; an auxiliary limiting plate is fixedly connected to the end of the auxiliary cylinder away from the hollow square exhaust tube; an auxiliary spring is sleeved on the auxiliary cylinder; one end of the auxiliary spring is fixedly connected to the auxiliary limiting plate, and the other end is fixedly connected to the auxiliary cross plate; an auxiliary insert is installed on the auxiliary cross plate.

[0023] Preferably, a loading and unloading long plate is installed on the side of the filter square plate near the exhaust hollow square tube; a loading and unloading groove is provided on the side of the exhaust hollow square tube near the filter square plate; the loading and unloading groove and the loading and unloading long plate are slidably engaged; an auxiliary slot is provided on the side of the loading and unloading long plate; when the filter square plate is attached to the exhaust hollow square tube, the loading and unloading long plate is located in the loading and unloading groove, at which time the auxiliary insert block passes through the side of the exhaust hollow square tube and connects with the auxiliary slot.

[0024] The beneficial effects that can be achieved by the above embodiments of the present invention include:

[0025] (1) The reciprocating movement of the air-generating plate within the hollow exhaust tube draws heat from the heat dissipation cavity into the hollow exhaust tube. The heat is then cooled by the cooling pipes within the hollow exhaust tube and discharged through the other end of the tube. This ensures that the air discharged from the hollow exhaust tube is cooled, preventing overheating of the gas from the meter during use from affecting the operation of surrounding meters. It also prevents heat buildup in the distribution box from affecting the normal operation of the meter. Furthermore, the exhaust fan can be operated to dissipate heat from the distribution box, further improving the meter's performance and heat dissipation. When the electricity meter is used inside the distribution box, the high-temperature gas released from the meter is cooled. This prevents the gas from becoming too hot and accumulating heat within the distribution box, thus avoiding the deformation and accelerated aging of the outer casing and internal materials of adjacent smart meters due to overheating. This extends the lifespan of the meter. Furthermore, the cooled gas also suppresses the temperature inside the distribution box, preventing excessively high temperatures from affecting the metering accuracy and operational stability of the smart meter. This reduces its limitations in practical applications and further improves the meter's usability and heat dissipation.

[0026] (2) When the air-generating square plate moves close to valve A in the exhaust hollow square tube, the main power block on the air-generating square plate will contact the driven power block, causing the brake square column on it to move in the T-shaped pipe to limit the movement, so that the brake spring is in a buffer state, squeezing the space in the T-shaped pipe, so that the gas inside is squeezed to the extension pipe, and sprayed out by several high-pressure nozzles from the side of the filter square plate, which is used to push the cooled heat dissipation gas discharged from the exhaust hollow square tube to the surrounding area, so as to avoid the cooled gas accumulating in the meter and causing strong heat dissipation limitation, thereby reducing the heat dissipation area of ​​the meter, increasing the heat dissipation area in the distribution box, improving the use and heat dissipation effect of the meter and the distribution box, and at the same time increasing the heat dissipation range of the exhaust hollow square tube, thereby reducing the limitation of the meter during use, so that the cooled heat dissipation gas discharged from the meter can be distributed in the distribution box to avoid the other components inside from being too hot during use, which affects the use, and further improves the use effect of the meter.

[0027] (3) When the positioning column enters the positioning groove and contacts the positioning plate, it moves within the positioning groove, causing the positioning spring to be in a buffer state. When it is at its maximum buffer level, it means that the exhaust hollow square tube has reached the predetermined installation position and can no longer move. At this time, by releasing the original outward pulling limit slider, it moves within the limit groove and limit column, causing the limit spring to be in a buffer state. This allows the fixing rod on the limit slider to pass through the fixing slot, thus limiting the positioning column and fixing the exhaust hollow square tube to the meter for use, completing the installation operation of the exhaust hollow square tube. The disassembly operation is the same. Pull the limit slider... The slider releases the locking rod from the locking slot, thus freeing the positioning column from its limit. This makes the installation and removal of the hollow square tube for exhaust ventilation convenient and quick, without the need for any tools. This facilitates the maintenance and replacement of the hollow square tube and reduces the limitations of the meter's use. Simultaneously, when the positioning column is locked, the positioning spring, which is in a buffer state, cannot return to its original position. The resulting elastic force acts on the positioning column, increasing the connection strength and friction between the locking rod and the locking slot. This prevents the locking rod from dislodging due to non-human factors, which could affect the heat dissipation of the hollow square tube and improve the installation effect.

[0028] (4) Align the auxiliary slot and auxiliary insert on the loading / unloading plate. Then, by releasing the outward-pulling auxiliary horizontal plate, it moves to the upper limit of the auxiliary cylinder, causing the auxiliary spring to be in a buffer state. This allows the auxiliary insert on the auxiliary horizontal plate to pass through the side of the exhaust hollow square tube and connect with the auxiliary slot, thus limiting the loading / unloading plate to its current position. This prevents the filter square plate, which is in contact with the exhaust hollow square tube, from moving, thereby completing the installation of the filter square plate. When disassembling, simply pull the auxiliary horizontal plate outward to release the auxiliary insert on it from limiting the loading / unloading plate, thus completing the disassembly of the filter square plate. This eliminates the need for tools during the installation and disassembly of the filter square plate. It is convenient and quick to replace different models and functions of filter plates, and also facilitates maintenance, reducing the limitations of meter use. At the same time, it improves the heat dissipation effect of the exhaust hollow square tube on the meter, which not only blocks impurities and protects the core components of the meter, but also intercepts dust, lint, insects and other impurities in the air, preventing them from entering the meter with the airflow, preventing impurities from adhering to the circuit board and heat sink and affecting heat dissipation efficiency, and reducing the risk of circuit short circuits, poor contact and other faults caused by impurities. At the same time, it ensures stable heat dissipation efficiency, reduces maintenance costs, improves the convenience of meter operation, ensures that the heat dissipation channel is not blocked by impurities, and maintains stable heat dissipation effect of the meter in the long term. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0030] In the attached diagram:

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the meter structure of the present invention;

[0033] Figure 3 This is a cross-sectional view of the hollow square exhaust tube of the present invention;

[0034] Figure 4 This is a cross-sectional view of the distribution box of the present invention;

[0035] Figure 5 This is a cross-sectional view of the limiting slide groove of the present invention;

[0036] Figure 6 This is a schematic diagram of the filter plate structure of the present invention;

[0037] Figure 7 This is a cross-sectional view of the exhaust fan of the present invention;

[0038] Figure 8 This is a cross-sectional view of the air-generating square plate of the present invention;

[0039] Figure 9 This is a cross-sectional view of the limiting slider of the present invention;

[0040] Figure 10 This is a schematic diagram of the refrigeration pipe structure of the present invention;

[0041] Figure 11 This is an exploded view of the loading and unloading long plate of the present invention;

[0042] Figure 12 This is a cross-sectional view of the extension tube of the present invention;

[0043] Figure 13 This is a schematic diagram of the guide block structure of the present invention;

[0044] Figure 14 This is a schematic diagram of the high-pressure nozzle structure of the present invention;

[0045] In the diagram: 1. Distribution box; 2. Electricity meter; 3. Exhaust fan; 4. Heat dissipation cavity; 5. Through square groove; 6. Hollow square exhaust pipe; 7. Positioning square column; 8. Filter square plate; 9. T-shaped pipe; 10. Valve A; 11. Valve B; 12. Drive motor; 13. Drive disc; 14. Drive slide column; 15. Guide base plate; 16. Guide cylinder; 17. Guide cross block; 18. Bending column; 19. Drive slide groove; 20. Air-generating square plate; 21. Exhaust valve; 22. Refrigeration pipe; 23. Main power block; 24. Positioning square plate 25. Positioning square plate; 26. Positioning spring; 27. Retaining slot; 28. Limiting slide groove; 29. ​​Limiting slide column; 30. Limiting slider; 31. Limiting spring; 32. Retaining rod; 33. Braking base; 34. Braking square column; 35. Driven block; 36. Braking spring; 37. Extension tube; 38. High-pressure nozzle; 39. Auxiliary cylinder; 40. Auxiliary cross plate; 41. Auxiliary limiting plate; 42. Auxiliary spring; 43. Auxiliary insert block; 44. Loading and unloading long plate; 45. Loading and unloading slide groove; 46. Auxiliary slot. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0047] Implementation examples, by Figures 1 to 14The present invention includes a distribution box 1; a plurality of electricity meters 2 are installed inside the distribution box 1; an exhaust fan 3 is provided on the outside of the distribution box 1, extending into the inside of the distribution box 1; an exhaust cooling device is provided on the electricity meters 2 to reduce the temperature of the exhaust air during exhaust; the exhaust cooling device includes a heat dissipation cavity 4 disposed inside the electricity meters 2; a through square groove 5 disposed on the side of the electricity meters 2 and communicating with the heat dissipation cavity 4; and an exhaust hollow square tube 6 installed at the through square groove 5, the two fitting together; one end of the exhaust hollow square tube 6 is located inside the distribution box 1, and the other end is located inside the through square groove 5; Table 2 is equipped with a locking and fixing unit for fixing the exhaust hollow square tube 6 to the meter 2; a filter plate 8 is provided on the side of the exhaust hollow square tube 6 away from the meter 2; a pneumatic extension unit is provided inside the exhaust hollow square tube 6 to prevent the air discharged from the exhaust hollow square tube 6 from accumulating around the filter plate 8; valves A 10 and B 11 are respectively installed at both ends inside the exhaust hollow square tube 6; a drive motor 12 is installed on the outside of the exhaust hollow square tube 6; a drive disc 13 is installed on the output end of the drive motor 12; a drive slide column 14 is installed on the drive disc 13 away from the drive motor. At one edge of the drive motor 12; guide plate 15, connected to the side of the exhaust hollow square tube 6, installed on the same side as the drive motor 12; guide cylinder 16, penetrating and connected to the guide plate 15 on the side near the meter 2; guide cylinder 16 and guide plate 15 slide in fit; guide horizontal block 17 is installed at one end of guide cylinder 16 near meter 2, and bent column 18 is installed at the other end; guide horizontal block 17 is located on the side of drive disk 13 away from drive motor 12; drive groove 19 is provided on the side of guide horizontal block 17 near drive disk 13; drive groove 19 and drive column 1 4. Sliding fit; the air-controlling square plate 20 is fitted and connected to the exhaust hollow square pipe 6, and the two are in sliding fit; the air-controlling square plate 20 is located between valve A 10 and valve B 11; an exhaust valve 21 is installed on the air-controlling square plate 20; the bent column 18 passes through the filter square plate 8 and valve A 10, and is connected to the air-controlling square plate 20; the bent column 18 is in sliding fit with the filter square plate 8 and valve A 10 respectively; the refrigeration pipe 22 is connected to the inner wall of the exhaust hollow square pipe 6; the refrigeration pipe 22 is located between valve A 10 and valve B 11; a drive block 23 is installed on the side of the air-controlling square plate 20 near valve A 10;

[0048] When several electricity meters 2 are integrated into the distribution box 1, the electricity meters 2 generate heat during use. By starting the drive motor 12, its output end drives the drive disc 13 to rotate, causing the drive slide column 14 on it to reciprocate within the drive slide groove 19. This causes the guide block 17 on it to reciprocate and be limited at the guide base plate 15 via the guide cylinder 16, thereby driving the bent column 18 to reciprocate and move, causing the air-generating plate 20 on it to reciprocate and move within the exhaust hollow square tube 6. Electronic components and other parts are integrated into the heat dissipation cavity 4 within the electricity meters 2, and their heat is also integrated into the heat dissipation cavity 4. The reciprocating movement of the air-generating plate 20 within the exhaust hollow square tube 6 draws the heat from the heat dissipation cavity 4 into the exhaust hollow square tube 6. The heat drawn in is cooled by the cooling pipe 22 within the exhaust hollow square tube 6 and discharged through the other end of the exhaust hollow square tube 6, making the air discharged from the exhaust hollow square tube 6 cold. Furthermore, to prevent the overheating of the gas dissipating from meter 2 during use from affecting the use of surrounding meters 2, and to prevent heat accumulation in the distribution box 1 from affecting the normal operation of meter 2, the exhaust fan 3 can also be operated to dissipate heat from the distribution box 1, further improving the use and heat dissipation effect of meter 2. When several meters 2 are used in the distribution box 1, the gas discharged from meter 2 is cooled, preventing the heat from being too high and concentrating in the distribution box 1, and preventing the heat from acting on the surface of adjacent smart meters for a long time, causing the outer shell and internal materials to deform and age faster due to overheating, thus extending the service life of meter 2. The cooling of the gas dissipating from meter 2 during use also suppresses the temperature inside the distribution box 1, preventing excessively high temperatures inside the box from affecting the metering accuracy and operational stability of the smart meters, reducing their limitations in practical applications, and further improving the use and heat dissipation effect of the meters.

[0049] The specific heat dissipation process is as follows: When the air-generating plate 20 moves within the exhaust hollow square tube 6, that is, when it moves closer to valve A, valve B opens; this creates suction within the exhaust hollow square tube 6, and since one end of the plate is located within the heat dissipation cavity 4, the superheated gas in the heat dissipation cavity 4 is drawn into the exhaust hollow square tube 6, with the hot gas located between valve B and the air-generating plate 20; the extracted hot gas is cooled via the cooling pipe 22; when the air-generating plate 20 returns to its original position and moves closer to valve B, valves A and B close, while the exhaust valve 21 opens. Because the area between valve B and the air-generating plate 20 is compressed and reduced, the extracted hot gas (which has already been cooled by the cooling pipe 22) is compressed and then... The exhaust valve 21 enters between valve A and the air-generating plate 20. Through the reciprocating movement of the air-generating plate 20, i.e., its movement closer to valve A, valve A opens and the exhaust valve 21 closes, allowing the cooled gas to be discharged into the hollow exhaust pipe 6. This ensures the cooled gas is discharged into the distribution box 1, preventing the high temperature of the gas emitted during the use of meter 2 from affecting the casing and materials of meter 2. The reciprocating movement of the air-generating plate 20 continuously dissipates heat from meter 2, and the discharged gas is low-temperature, extending the service life of meter 2. It also prevents excessive heat emitted and dissipated during the use of meter 2 from affecting its metering accuracy and operational stability, thus improving the performance of meter 2 and reducing its limitations.

[0050] The locking and positioning unit of this embodiment includes a positioning square post 7, which is fixedly connected to the exhaust hollow square tube 6; the end of the positioning square post 7 faces the meter 2; a positioning square groove 24 is set on the side of the meter 2 near the positioning square post 7; a matching positioning square plate 25 is installed in the positioning square groove 24, and the two slide in cooperation; a positioning spring 26 is set in the positioning square groove 24; one end of the positioning spring 26 is fixedly connected to the positioning square groove 24, and the other end is fixedly connected to the positioning square plate 25; the side of the positioning square plate 25 near the positioning square post 7 is on the moving path of the end of the positioning square post 7 facing the meter 2; a through-hole fixing slot 27 is installed on the positioning square post 7; and a limiting slide groove 28 is provided. The meter 2 is located on the side of the meter 2; a limiting slide post 29 is installed in the limiting slide groove 28; a limiting slider 30 is fitted into the limiting slide groove 28; the limiting slide post 29 is connected through the limiting slider 30; the limiting slider 30 slides in cooperation with the limiting slide groove 28 and the limiting slide post 29; a limiting spring 31 is sleeved on the limiting slide post 29; one end of the limiting spring 31 is fixedly connected to the limiting slide groove 28, and the other end is fixedly connected to the limiting slider 30; a fixing rod 32 is fixedly installed on the limiting slider 30; when the exhaust hollow square tube 6 is installed on the meter 2, the limiting spring 31 is at its maximum buffer level, and at this time the fixing rod 32 is connected to the fixing slot 27;

[0051] When the meter 2 is in use, the hollow square exhaust tube 6 is inserted into the through-slot 5. At this time, one end of the hollow square exhaust tube 6 is in the heat dissipation cavity 4, and the other end is in the distribution box 1, so that the positioning column 7 on the hollow square exhaust tube 6 enters the positioning slot 24. This is used to position the hollow square exhaust tube 6 when it is installed in the meter 2, so as to avoid installation position deviation. When the positioning column 7 enters the positioning slot 24, it contacts the positioning plate 25, so that it moves within the positioning slot 24. This puts the positioning spring 26 in a buffer state. When it is at the maximum buffer level, it means that the hollow square exhaust tube 6 has reached the predetermined installation position and can no longer move. At this time, by releasing the original outward pulling limit slider 30, it moves within the limit slide groove 28 and the limit slide column 29, so that the limit spring 31 is in a buffer state, and the fixing rod 32 on the limit slider 30 passes through the fixing slot 2. 7. This allows the positioning column 7 to be limited, thereby fixing the hollow square tube 6 of the exhaust fan to the meter 2, completing the installation of the hollow square tube 6. The disassembly operation is similar; by pulling the limiting slider 30, the retaining rod 32 on it is no longer connected to the retaining slot 27, thus releasing the limitation on the positioning column 7. This makes the installation and disassembly of the hollow square tube 6 convenient and quick, and can be completed without any tools, facilitating the maintenance and replacement of the hollow square tube 6 and reducing the limitations of the meter 2 in use. At the same time, when the positioning column 7 is limited, the positioning spring 26, which is in a buffer state, cannot return to its original position. The resulting elastic force acts on the positioning column 7, increasing the connection strength and friction between the retaining rod 32 and the retaining slot 27. This prevents the retaining rod 32 from dislodging due to non-human factors during use, affecting the heat dissipation of the hollow square tube 6, thus improving the installation effect of the hollow square tube 6.

[0052] The pneumatic extension unit of this embodiment includes a T-shaped pipe 9, installed inside the exhaust hollow square pipe 6; a brake base 33 is installed inside the exhaust hollow square pipe 6 and connected to the outer wall of the T-shaped pipe 9; a brake column 34 is slidably connected inside the T-shaped pipe 9; a driven power block 35 is installed at one end of the brake column 34 near the air-generating square plate 20; the driven power block 35 is located in the moving path of the driving power block 23; a brake spring 36 is sleeved on the brake column 34; one end of the brake spring 36 is fixedly connected to the driven power block 35, and the other end is fixedly connected to the brake base 33; an extension pipe 37 is installed on the T-shaped pipe 9, and the two are connected; the end of the extension pipe 37 passes through valve A 10 and filter square plate 8 in sequence, and several high-pressure nozzles 38 are installed thereon; the high-pressure nozzles 38 are located on the side of filter square plate 8 away from meter 2;

[0053] When the air-generating square plate 20 moves near valve A within the exhaust hollow square pipe 6, the active force block 23 on the air-generating square plate 20 contacts the driven force block 35, causing the braking square column 34 on it to move within the T-shaped pipe 9. This puts the braking spring 36 in a buffer state, compressing the space within the T-shaped pipe 9, forcing the gas inside to the extension pipe 37, and then spraying it out from the side of the filter square plate 8 by several high-pressure nozzles 38. This is used to push the cooled heat dissipation gas discharged from the exhaust hollow square pipe 6 to the surrounding area, preventing the cooled gas from accumulating in the meter 2 and causing strong heat dissipation limitations. This reduces the heat dissipation area of ​​the meter 2, increases the heat dissipation area within the distribution box 1, and improves the use and heat dissipation effect of the meter and distribution box. At the same time, it increases the heat dissipation range of the exhaust hollow square pipe 6, thereby reducing the limitations of the meter's use. This allows the cooled heat dissipation gas discharged from the meter to be distributed within the distribution box, preventing other components from overheating and affecting their use, further improving the meter's performance.

[0054] In this embodiment, a quick-control loading and unloading assembly is provided on the hollow square exhaust tube 6. The quick-control loading and unloading assembly includes an auxiliary cylinder 39, which is fixedly connected to the side of the hollow square exhaust tube 6. An auxiliary horizontal plate 40 is slidably connected to the auxiliary cylinder 39. An auxiliary limiting plate 41 is fixedly connected to one end of the auxiliary cylinder 39 away from the hollow square exhaust tube 6. An auxiliary spring 42 is sleeved on the auxiliary cylinder 39. One end of the auxiliary spring 42 is fixedly connected to the auxiliary limiting plate 41, and the other end is fixedly connected to the auxiliary horizontal plate 40. The auxiliary horizontal plate 40 is... An auxiliary insert 43 is installed; a loading and unloading long plate 44 is installed on the side of the filter square plate 8 near the exhaust hollow square tube 6; a loading and unloading slide 45 is provided on the side of the exhaust hollow square tube 6 near the filter square plate 8; the loading and unloading slide 45 and the loading and unloading long plate 44 are slidably engaged; an auxiliary slot 46 is provided on the side of the loading and unloading long plate 44; when the filter square plate 8 is attached to the exhaust hollow square tube 6, the loading and unloading long plate 44 is located in the loading and unloading slide 45, at which time the auxiliary insert 43 passes through the side of the exhaust hollow square tube 6 and is connected to the auxiliary slot 46.

[0055] When in use, the hollow square exhaust pipe 6, equipped with a filter plate 8, prevents impurities from entering the meter 2 through the exhaust pipe 6. It also filters harmful impurities in the gas, preventing harmful impurities in the exhaust gas during heat dissipation from affecting the health of staff and improving the safety of the meter 2 during use. When installing the filter plate 8, the loading and unloading elongated plate 44 is aligned with the loading and unloading slide groove 45 on the hollow square exhaust pipe 6, and the filter plate 8 is pushed, causing the loading and unloading elongated plate 44 to slide smoothly. The filter plate 8 and the exhaust hollow square tube 6 are moved within the limited space of the slot 45. When they are in contact, the auxiliary slot 46 on the loading / unloading long plate 44 is aligned with the auxiliary insert 43. At this time, by releasing the outwardly pulled auxiliary horizontal plate 40, it is moved to the upper limit of the auxiliary cylinder 39, so that the auxiliary spring 42 is in a buffer state. Then, the auxiliary insert 43 on the auxiliary horizontal plate 40 passes through the side of the exhaust hollow square tube 6 and connects with the auxiliary slot 46, thus limiting the loading / unloading long plate 44 to the current position, so that it is aligned with the exhaust hollow square tube 6. The filter plate 8, which is attached to the hollow square tube 6, cannot be moved, thus completing the installation operation of the filter plate 8. Disassembly is simple: just pull the auxiliary horizontal plate 40 outwards to release the limiting setting of the auxiliary insert 43 on it on the loading and unloading long plate 44, thus completing the disassembly of the filter plate 8. This makes the installation and removal of the filter plate 8 tool-free and convenient, facilitating the replacement of different models and functions of the filter plate 8, and also simplifying maintenance, reducing the limitations of the meter 2's use. Simultaneously, it improves the heat dissipation effect of the hollow square tube 6 on the meter 2, not only blocking impurities and protecting the core components of the meter, but also intercepting dust, lint, insects, and other impurities in the air, preventing them from entering the meter's interior with the airflow, preventing impurities from adhering to the circuit board and heat sink, affecting heat dissipation efficiency, and reducing the risk of short circuits, poor contact, and other malfunctions caused by impurities. It also ensures stable heat dissipation efficiency, reduces maintenance costs, improves the convenience of meter operation, ensures that the heat dissipation channel is not blocked by impurities, and maintains stable heat dissipation effect of the meter over the long term.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart meter, comprising a distribution box; characterized in that: The distribution box contains several electricity meters; an exhaust fan is installed on the outside of the distribution box, extending into the inside of the distribution box; each electricity meter is equipped with an exhaust cooling device to reduce the temperature of the exhaust air during exhaust; the exhaust cooling device includes a heat dissipation cavity and is located inside the electricity meter. A through-slot is provided on the side of the meter and communicates with the heat dissipation cavity; A hollow square exhaust duct is installed at the through-groove, with the two fitting together. One end of the hollow square exhaust duct is located inside the distribution box, and the other end is located inside the through-groove. A locking and fixing unit is provided on the electricity meter to fix the hollow square exhaust duct to the meter. The locking and fixing unit includes a positioning column, fixedly connected to the hollow square exhaust duct. The end point of the positioning column faces the electricity meter. A filter plate is provided on the side of the hollow square exhaust duct away from the electricity meter. A pneumatic extension unit is provided inside the hollow square exhaust duct to prevent the air discharged from the hollow square exhaust duct from accumulating around the filter plate. The pneumatic extension unit includes a T-shaped pipe installed inside the hollow square exhaust duct. Valve A and valve B are respectively installed at both ends inside the hollow square exhaust duct. It includes a drive motor, which is installed on the outside of the hollow square exhaust pipe; a drive disc is installed on the output end of the drive motor. The drive slide column is installed on the edge of the drive disc away from the drive motor. The guide plate is connected to the side of the exhaust hollow square tube and is installed on the same side as the drive motor. A guide cylinder is connected through the guide base plate to the side near the meter; the guide cylinder and the guide base plate are slidably fitted; a guide block is installed at one end of the guide cylinder near the meter, and a bent column is installed at the other end; the guide block is located on the side of the drive disk away from the drive motor; a drive groove is provided on the side of the guide block near the drive disk; the drive groove is slidably fitted with the drive column. It includes an air-generating square plate, which is fitted and connected inside the exhaust hollow square tube, and the two are slidably engaged; the air-generating square plate is located between valve A and valve B; an exhaust valve is installed on the air-generating square plate; the bent column passes through the filter square plate and valve A, and is connected to the air-generating square plate; the bent column is slidably engaged with the filter square plate and valve A respectively; A refrigeration pipe is connected to the inner wall of the hollow square exhaust pipe; the refrigeration pipe is located between valve A and valve B; a main force block is installed on the side of the air-generating square plate near valve A; A brake base is installed inside the hollow square exhaust pipe and connected to the outer wall of the T-shaped pipe; a brake column is slidably connected inside the T-shaped pipe; a driven power block is installed at the end of the brake column near the air-generating square plate; the driven power block is located in the moving path of the driven power block; A brake spring is fitted onto the brake column; one end of the brake spring is fixedly connected to the driven block, and the other end is fixedly connected to the brake base; an extension pipe is installed on the T-shaped pipe, and the two are connected. The end of the extension tube passes through valve A and the filter plate in sequence, and is equipped with several high-pressure nozzles; the high-pressure nozzles are located on the side of the filter plate away from the meter.

2. A smart meter according to claim 1, characterized in that: It includes a positioning groove, which is set on the side of the meter near the positioning column; a matching positioning plate is installed in the positioning groove, and the two slide in cooperation. A positioning spring is disposed within a positioning groove; one end of the positioning spring is fixedly connected to the positioning groove, and the other end is fixedly connected to a positioning plate; the side of the positioning plate closest to the positioning column is located on the moving path of the positioning column toward the end of the meter; a through-hole retaining slot is installed on the positioning column.

3. A smart meter according to claim 2, characterized in that: It includes a limiting slide groove, which is disposed on the side of the meter; a limiting slide post is installed in the limiting slide groove; A limiting slider is fitted into a limiting groove; a limiting slide post is connected through the limiting slider; the limiting slider slides in conjunction with the limiting groove and the limiting slide post. A limiting spring is sleeved on a limiting slide post; one end of the limiting spring is fixedly connected to a limiting slide groove, and the other end is fixedly connected to a limiting slider. The retaining rod is fixedly installed on the limiting slider; when the exhaust hollow square tube is installed on the meter, the limiting spring is at its maximum buffering degree, and at this time the retaining rod is connected to the retaining slot.

4. A smart meter according to claim 1, characterized in that: A quick-control loading and unloading assembly is provided on the hollow square exhaust tube; the quick-control loading and unloading assembly includes an auxiliary cylinder, which is fixedly connected to the side of the hollow square exhaust tube; an auxiliary cross plate is slidably connected to the auxiliary cylinder; an auxiliary limiting plate is fixedly connected to the end of the auxiliary cylinder away from the hollow square exhaust tube; an auxiliary spring is sleeved on the auxiliary cylinder; one end of the auxiliary spring is fixedly connected to the auxiliary limiting plate, and the other end is fixedly connected to the auxiliary cross plate; an auxiliary insert is installed on the auxiliary cross plate.

5. A smart meter according to claim 4, characterized in that: A loading and unloading long plate is installed on the side of the filter square plate near the exhaust hollow square tube; a loading and unloading slide groove is provided on the side of the exhaust hollow square tube near the filter square plate; the loading and unloading slide groove and the loading and unloading long plate are slidably engaged; an auxiliary slot is provided on the side of the loading and unloading long plate; when the filter square plate is attached to the exhaust hollow square tube, the loading and unloading long plate is located in the loading and unloading slide groove, at which time the auxiliary insert block passes through the side of the exhaust hollow square tube and connects with the auxiliary slot.

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