A smart electric meter

Abstract

This invention belongs to the field of smart meter technology, specifically a smart meter. The proposed solution includes a meter body and a mounting plate. Both sides of the meter body have heat dissipation grooves evenly distributed vertically. A gap is left between the meter body and the mounting plate. Limit frames are fixed to the top and bottom of the mounting plate, and the top and bottom outer walls of the meter body slide in contact with the limit frames. Movable frames are provided on both sides of the meter body, connected to a horizontal drive mechanism. Multiple extension rods are fixed to the end of the movable frame facing the meter body, and a heat sink is fixed to one end of each extension rod, sliding in contact with the inner wall of the heat dissipation groove. This invention, by varying the width of the gap between the meter body and the mounting plate, avoids heat accumulation on the casing surface caused by the meter body remaining in a fixed position, thereby improving the effectiveness and stability of the smart meter during long-term continuous operation.

Description

Technical Field

[0001] The present invention relates to the technical field of smart electric meters, and in particular to a smart electric meter. Background Art

[0002] Smart meters are smart terminals of smart grids. In addition to the basic electricity consumption metering function of traditional electricity meters, in order to adapt to the use of smart grids and new energy, they also have two-way multi-rate metering function, user-side control function, two-way data communication function with multiple data transmission modes, anti-electricity theft function and other intelligent functions.

[0003] Referring to the Chinese patent with patent publication number CN118234214A, a smart meter that is resistant to strong magnetic interference is disclosed, including a case and an anti-interference unit; the case: a mounting groove is opened inside, a circuit board rack is fixed to the rear side of the mounting groove, a wiring rack is placed inside the case, and wiring terminals are fixed inside the wiring rack, the front side of the case is matched with the rear side of the case cover, a heat dissipation unit is provided inside the mounting groove, and a protective unit is provided on the outside of the wiring rack.

[0004] However, when the smart meter of the above patent and the smart meter conventionally used in the prior art are installed in the meter box or the distribution cabinet, they are generally fixed to the meter box by bolts only through the mounting blocks pre-extended from the meter housing, that is, the back of the meter is often attached to the meter box and installed in a fixed position. The installation position of the meter is always fixed, resulting in the heat from long-term operation being easily accumulated around the meter and difficult to dissipate, which will affect the normal operation of the meter. Summary of the invention

[0005] Based on the technical problems of the background technology, the present invention proposes a smart electric meter.

[0006] A smart electric meter proposed in the present invention includes an electric meter body and a mounting plate, both sides of the electric meter body are provided with heat dissipation grooves distributed at equal distances in the vertical direction, and an empty area is left between the electric meter body and the mounting plate; the top and bottom ends of the mounting plate are fixed with limit frames, and the top and bottom outer walls of the electric meter body are in sliding contact with the limit frames; both sides of the electric meter body are provided with moving frames, and the moving frames are connected with a horizontal driving mechanism, and a plurality of extension rods are fixed to one end of the moving frame facing the electric meter body, and a heat sink is fixed to one end of the extension rod, and the heat sink is in sliding contact with the inner wall of the heat dissipation groove; a temperature sensor is provided at the position of the electric meter body facing the mounting plate, and the temperature sensor is connected to a microprocessor through a signal line, and the microprocessor is electrically connected to the horizontal driving mechanism, and when the temperature detected on the back of the electric meter body exceeds the set temperature, the horizontal driving mechanism is started to make the heat sink reciprocate horizontally in the corresponding heat dissipation groove.

[0007] Preferably, the heat sink is arranged in a C-shaped structure, the heat sink is arranged away from the side wall opening of the electric meter body, and both ends of the heat sink are opened.

[0008] Preferably, a horizontal plate is fixed to the end of the movable frame near the mounting plate, and the horizontal plate extends horizontally toward the main body of the electric meter. Two sliding rods are fixed at positions corresponding to the mounting plate and the horizontal plate. Sliding holes are provided on the horizontal plate at positions corresponding to the sliding rods. A spring corresponding to the position of the sliding rod is connected between the mounting plate and the horizontal plate.

[0009] Preferably, a mounting frame is fixed in the middle position of the mounting plate, and a gap is left between the mounting frame and the main body of the electric meter. The horizontal driving mechanism is provided with two shaft rods located on both sides of the mounting frame. The two shaft rods are placed vertically, and both ends of the circumferential outer wall of the two shaft rods are rotatably connected with shaft seats, and the shaft seats are fixedly connected to the mounting frame. A fixing plate is fixed to the outer wall of the two shaft rods, and an arc-shaped abutment plate is fixed to the end of the fixing plate. Two through grooves are opened at positions corresponding to the abutment plates on the mounting frame, and both ends of the abutment plates are in contact with the corresponding side walls of the horizontal plate.

[0010] Preferably, a motor is fixed on the mounting plate, the output shaft of the motor is meshed with one of the second shaft rods via gears, and the output shaft of the motor is connected to the other second shaft rod via a synchronous belt transmission.

[0011] Preferably, the mounting frame is provided with two horizontally placed shaft rods 1 facing the direction of the electric meter body, and both ends of the circumferential outer wall of the shaft rod 1 are rotatably connected to a torsion spring seat through a torsion spring, the torsion spring seat and the mounting frame are fixedly connected, and a connecting plate is fixed to the outer wall of the shaft rod 1, and a support rod is fixed to the end of the connecting plate, and the support rod is in sliding contact with the back side of the electric meter body.

[0012] Preferably, the end surface of the mounting frame is provided with a plurality of through slots 1, and the through slots 1 are vertically extended.

[0013] Preferably, a horizontally extending limit groove is provided on the top of the limit frame, and the limit groove is vertically penetrated, and limit sliders corresponding to the position of the limit groove are fixed on the top and bottom of the electric meter body, and the limit slider is in sliding contact with the inner wall of the limit groove.

[0014] Preferably, the outer walls on both sides of the limiting frame and the inner walls on both sides of the limiting groove are provided with open grooves distributed at intervals, and the open grooves are vertically penetrated.

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

[0016] 1. In the present invention, when the temperature of the empty area between the back of the meter body and the mounting plate is too high due to the difficulty in dissipating the temperature, the heat sink is made to reciprocate horizontally in the corresponding heat dissipation groove to improve the airflow movement on both sides of the meter body. The meter body will produce reciprocating horizontal displacement relative to the mounting plate, thereby improving the dispersion and discharge effect of the heat on the back of the meter body by changing the width of the empty area between the meter body and the mounting plate, thereby avoiding the meter body always being in a fixed position to cause heat to gather on the shell surface, so as to improve the effectiveness and stability of the use of the smart meter during long-term continuous operation.

[0017] 2. In the present invention, through the movement coordination between the abutment plate and the movable frame and the movement coordination between the heat sink and the abutment rod, the heat sink will move relative to the shell of the meter body, and the abutment rod and the meter body will also move relative to each other, that is, there will be no position on the periphery of the shell of the meter body that is always tightly attached, thus avoiding the accumulation of heat at the attached position and making it difficult to dissipate, thereby further improving the rapid cooling effect of the meter body when it is overheated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a smart electric meter proposed by the present invention;

[0019] Figure 2 A schematic diagram of the position structure of a mounting plate of a smart meter proposed by the present invention;

[0020] Figure 3 A schematic diagram of a limit frame structure of a smart meter proposed by the present invention;

[0021] Figure 4 A schematic diagram of the structure of a mobile frame of a smart electric meter proposed by the present invention;

[0022] Figure 5 A schematic diagram of the connection plate position structure of a smart electric meter proposed by the present invention;

[0023] Figure 6 A schematic diagram of the shaft rod two-position structure of a smart electric meter proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the mounting frame of a smart meter proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the support plate structure of a smart meter proposed by the present invention.

[0026] In the figure: 1 meter body, 101 heat sink, 102 limit slider, 2 mounting plate, 3 limit frame, 301 limit slot, 302 opening slot, 4 moving frame, 401 horizontal plate, 5 extension rod, 6 heat sink, 7 slide bar, 8 spring, 9 mounting frame, 901 through slot 1, 902 through slot 2, 10 connecting plate, 11 shaft rod 1, 12 torsion spring seat, 13 push rod, 14 shaft rod 2, 15 shaft seat, 16 fixed plate, 17 push plate, 18 motor. DETAILED DESCRIPTION

[0027] Example 1: Reference Figure 1-Figure 8 A smart electric meter includes an electric meter body 1 and a mounting plate 2. Both sides of the electric meter body 1 are provided with heat dissipation grooves 101 distributed at equal distances in the vertical direction. The heat dissipation grooves 101 are extended in the horizontal direction, and a space is left between the electric meter body 1 and the mounting plate 2; the top and bottom ends of the mounting plate 2 are fixed with horizontally placed limit frames 3, the limit frames 3 extend toward the direction of the electric meter body 1, and the top and bottom outer walls of the electric meter body 1 are in sliding contact with the limit frames 3; both sides of the electric meter body 1 are provided with moving frames 4, the moving frames 4 extend vertically, the moving frames 4 are connected to a horizontal driving mechanism, and the moving frames 4 A plurality of extension rods 5 are fixed to one end of the meter body 1, and a heat sink 6 is fixed to one end of the extension rod 5 away from the mobile frame 4, and the heat sink 6 is in sliding contact with the inner wall of the heat sink 101; a temperature sensor is arranged at the position of the meter body 1 facing the mounting plate 2, and the temperature sensor is connected to a microprocessor through a signal line, and the microprocessor is electrically connected to the horizontal driving mechanism. When the temperature detected on the back of the meter body 1 exceeds the set temperature, the horizontal driving mechanism is started to make the heat sink 6 reciprocate horizontally in the corresponding heat sink 101. When installed and used, the top and bottom of the meter body 1 are limited by sliding through the limit frame 3. The two sides of the meter body 1 are limited by multiple heat sinks 6, so that the meter body 1 is slidably limited and placed between the limit frame 3 and the heat sink 6, and the line connection is made at the bottom of the meter body 1. The internal heat of the meter body 1 is normally discharged and cooled from the heat sinks 101 on both sides; when the temperature in the empty area between the back of the meter body 1 and the mounting plate 2 is too high due to the temperature accumulation and difficulty in dissipating, the horizontal driving mechanism drives the movable frame 4 and the multiple heat sinks 6 to reciprocate horizontally: the heat sink 6 is made to reciprocate horizontally in the corresponding heat sink 101 to increase the airflow movement on both sides of the meter body 1, thereby improving The heat dissipation efficiency in the meter body 1 is improved, and when the heat sink 6 moves to the end of the heat dissipation slot 101, the horizontally moving heat sink 6 will move the meter body 1 for a short distance, that is, during the horizontal reciprocating movement of the heat sink 6, the meter body 1 will produce a reciprocating horizontal displacement relative to the mounting plate 2, thereby improving the dispersed discharge effect of the heat on the back of the meter body 1 by changing the width of the empty area between the meter body 1 and the mounting plate 2, thereby avoiding the meter body 1 always being in a fixed position to cause heat to gather on the shell surface, so as to improve the effectiveness and stability of the use of the smart meter during long-term continuous operation.

[0028] In the present invention, the heat sink 6 is arranged in a C-shaped structure, the heat sink 6 is arranged away from the side wall opening of the electric meter body 1, and the two ends of the heat sink 6 are arranged with openings. Through the bending arrangement of the C-shaped structure of the heat sink 6, while ensuring the sliding contact between the heat sink 6 and the heat sink 101, the heat sink 101 can be made into an expanded structure, thereby improving the heat dissipation efficiency of the heat sink 101 under normal conditions, and through the arrangement of the C-shaped structure of the heat sink 6, when the heat sink 6 reciprocates horizontally, the disturbance effect of the airflow around the heat sink 101 can be effectively improved, thereby improving the heat dissipation and cooling efficiency around the electric meter body 1 during the movement.

[0029] In the present invention, a horizontal plate 401 is fixed to the end of the movable frame 4 near the mounting plate 2, and the horizontal plate 401 extends horizontally toward the direction of the electric meter body 1. Two sliding rods 7 are fixed at the positions corresponding to the mounting plate 2 and the horizontal plate 401. Sliding holes are opened at the positions corresponding to the sliding rods 7 on the horizontal plate 401. The sliding rods 7 are slidably connected to the inner walls of the sliding holes. A spring 8 corresponding to the position of the sliding rod 7 is connected between the mounting plate 2 and the horizontal plate 401. A mounting frame 9 is fixed to the middle position of the mounting plate 2 toward the electric meter body 1. A gap is left between the mounting frame 9 and the electric meter body 1. The horizontal driving mechanism is provided with a shaft rod 14 located on both sides of the mounting frame 9. The shaft rod 14 is placed vertically. The shaft rod 14 is arranged in the area between the mounting frame 9 and the mounting plate 2. Both ends of the circumferential outer wall of the shaft rod 14 are rotatably connected with shaft seats 15. The shaft seat 15 is fixedly connected to the mounting frame 9. The outer wall of the shaft rod 14 is fixed with a fixing plate 16, and the end of the fixing plate 16 is fixed with an arc-shaped abutment plate 1 7, a through slot 902 is provided at a position corresponding to the butt plate 17 on the mounting frame 9, both ends of the butt plate 17 extend out of the mounting frame 9, and both ends of the butt plate 17 contact the corresponding side walls of the horizontal plate 401, and a motor 18 is fixed on the mounting plate 2, and the output shaft of the motor 18 is meshed with one of the shaft rods 14 through gears, and the output shaft of the motor 18 is connected to the other shaft rod 14 through a synchronous belt transmission, and the microprocessor is electrically connected to the motor 18, so that the motor 18 can reciprocate when the temperature is detected to be too high, and the movable frame 4 is horizontally limited by the slide bar 7 and the spring 8, and the motor 18 is rotated to drive the two shaft rods 14 and the butt plate 17 in the opposite direction through different transmission modes between the output shaft of the motor 18 and the two shaft rods 14, so that the motor 18 rotates to drive the two shaft rods 14 and the butt plate 17 to rotate in the opposite direction, so that the two ends of the butt plate 17 are respectively abutted against the horizontal plate 401, and the reciprocating rotation of the motor 18 can realize the same-direction horizontal reciprocating motion of the two movable frames 4, so as to realize the horizontal reciprocating motion of the heat sink 6 in the heat dissipation groove 101.

[0030] In the present invention, the mounting frame 9 is provided with two horizontally placed shaft rods 11 in the direction of the electric meter body 1, and both ends of the circumferential outer wall of the shaft rod 11 are rotatably connected with a torsion spring seat 12 through a torsion spring, and the torsion spring seat 12 is fixedly connected to the mounting frame 9, and a connecting plate 10 is fixed to the outer wall of the shaft rod 11, and the end of the connecting plate 10 away from the shaft rod 11 is inclined toward the direction close to the electric meter body 1, and a push rod 13 is fixed to the end of the connecting plate 10, and the push rod 13 is in sliding contact with the back of the electric meter body 1. In the normal placement state: the electric meter body 1 is close to the mounting frame 9 and squeezes the push rod 13, the heat sink 6 is at the edge position of the heat sink 101 close to the mounting plate 2, and the spring 8 is in a stretched state, at this time, the push rod 13 applies force to the electric meter body 1 outward under the action of torsion, and the spring 8 applies force to the electric meter body 1 inward through the contact between the heat sink 6 and the edge of the heat sink 101, so that the electric meter body 1 maintains a stable placement state;

[0031] When the temperature on the back of the meter body 1 is too high, the motor 18 rotates with the two abutment plates 17 to push the moving frames 4 on both sides to move outward horizontally. When the heat sink 6 starts to move horizontally, the meter body 1 moves outward horizontally with the action of the abutment rod 13 until the connecting plate 10 tilts normally. At this time, the gap between the meter body 1 and the mounting frame 9 and the mounting plate 2 increases to improve the heat dissipation effect; when the heat sink 6 continues to move outward, the heat sink 6 moves relatively in the heat sink 101 to improve the heat dissipation effect around the heat sink 101; until the heat sink 6 contacts the inner wall of the heat sink 101 away from the mounting plate 2, the heat sink 6 continues to move a short distance and moves the meter body 1 outward for a certain distance;

[0032] Then the motor 18 turns over to make the heat sink 6 move horizontally in the opposite direction. The meter body 1 moves a short distance along with the heat sink 6 toward the mounting plate 2 and then abuts against the stopper 13. The heat sink 6 then moves relative to the heat sink 101 until the heat sink 6 contacts the inner wall of the heat sink 101 and moves the meter body 1 inward for a certain distance.

[0033] Thus, the horizontal reciprocating interval movement of the meter body 1 is achieved through the movement coordination of the abutment plate 17 and the movable frame 4, and the movement coordination of the heat sink 6 and the abutment rod 13, so as to improve the heat dissipation and cooling efficiency through the change of the gap; and in the heat dissipation process, the heat sink 6 will move relative to the shell of the meter body 1, and the abutment rod 13 and the meter body 1 will also move relative to each other, that is, there will be no position on the periphery of the shell of the meter body 1 that is always tightly attached, thus avoiding the accumulation of heat at the attached position and making it difficult to dissipate, thereby further improving the rapid cooling effect of the meter body 1 when it is overheated.

[0034] In the present invention, a plurality of through grooves 901 are provided on the end surface of the mounting frame 9, and the through grooves 901 are extended vertically. During the cooling operation in the overheated state, the abutment plate 17 rotates in a circle on both sides between the mounting frame 9 and the electric meter body 1, and the connecting plate 10 swings in the vertical direction, and cooperates with the vertically extended through grooves 901 and the reciprocating movement of the electric meter body 1 relative to the mounting frame 9 to improve the airflow dispersion effect on the back of the electric meter body 1, thereby improving the heat dissipation and cooling efficiency of the back of the electric meter body 1.

[0035] Embodiment 2: Embodiment 2 includes all structures and methods of Embodiment 1, with reference to Figure 1-Figure 8 , a smart electric meter also includes a horizontally extending limit groove 301 on the top of the limit frame 3, the limit groove 301 is vertically penetrated, the top and bottom of the electric meter body 1 are fixed with limit sliders 102 corresponding to the position of the limit groove 301, the limit slider 102 is in sliding contact with the inner wall of the limit groove 301, and the outer walls on both sides of the limit frame 3 and the inner walls on both sides of the limit groove 301 are provided with open grooves 302 distributed at intervals, and the open grooves 302 are vertically penetrated. Through the vertical penetration of the limit grooves 301 and the open grooves 302 distributed at intervals, the position where the top and bottom outer walls of the electric meter body 1 contact the limit frame 3 is constantly changed during the horizontal movement of the electric meter body 1, that is, each position of the top and bottom of the electric meter body 1 will correspond to the position of the vertically penetrated open grooves 302, and there will be no situation where the top and bottom of the electric meter body 1 are always completely in contact with the limit frame 3, thereby further improving the heat dissipation and cooling effect of the smart electric meter.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A smart electric meter, comprising an electric meter body (1) and a mounting plate (2), characterized in that: Both sides of the electric meter body (1) are provided with heat dissipation grooves (101) distributed at equal distances in the vertical direction, and an empty space is left between the electric meter body (1) and the mounting plate (2); The top and bottom ends of the mounting plate (2) are both fixed with limit frames (3), and the top and bottom outer walls of the electric meter body (1) are in sliding contact with the limit frames (3); A movable frame (4) is provided on both sides of the electric meter body (1), the movable frame (4) being connected to a horizontal driving mechanism, a plurality of extension rods (5) being fixed to one end of the movable frame (4) facing the electric meter body (1), a heat sink (6) being fixed to one end of the extension rod (5), the heat sink (6) being in sliding contact with the inner wall of the heat sink (101); A temperature sensor is provided at a position of the meter body (1) facing the mounting plate (2), the temperature sensor is connected to a microprocessor via a signal line, the microprocessor is electrically connected to a horizontal drive mechanism, when the temperature detected on the back of the meter body (1) exceeds a set temperature, the horizontal drive mechanism is started to cause the heat sink (6) to reciprocate horizontally in the corresponding heat sink (101), a horizontal plate (401) is fixed to the end of the movable frame (4) close to the mounting plate (2), the horizontal plate (401) extends horizontally toward the meter body (1), two slide bars (7) are fixed at positions corresponding to the mounting plate (2) and the horizontal plate (401), a slide hole is provided on the horizontal plate (401) at positions corresponding to the slide bars (7), and a spring (8) corresponding to the position of the slide bars (7) is connected between the mounting plate (2) and the horizontal plate (401); A mounting frame (9) is fixed at the middle position of the mounting plate (2), and a gap is left between the mounting frame (9) and the meter body (1). The horizontal driving mechanism is provided with two shaft rods (14) located on both sides of the mounting frame (9). The two shaft rods (14) are placed vertically, and both ends of the circumferential outer wall of the two shaft rods (14) are rotatably connected to shaft seats (15), and the shaft seats (15) and the mounting frame (9) are fixedly connected. A fixing plate (16) is fixed to the outer wall of the two shaft rods (14), and an arc-shaped abutment plate (17) is fixed to the end of the fixing plate (16). A through groove (902) is opened at a position corresponding to the abutment plate (17) on the mounting frame (9), and both ends of the abutment plate (17) are connected to the corresponding side wall of the horizontal plate (401). A motor (18) is fixed on the mounting plate (2), the output shaft of the motor (18) is meshed with one of the shaft rods (14) through a gear, and the output shaft of the motor (18) is connected to the other shaft rod (14) through a synchronous belt transmission. The mounting frame (9) is provided with two horizontally placed shaft rods (11) facing the direction of the meter body (1), and both ends of the circumferential outer wall of the shaft rod (11) are rotatably connected to a torsion spring seat (12) through a torsion spring, and the torsion spring seat (12) is fixedly connected to the mounting frame (9), and a connecting plate (10) is fixed to the outer wall of the shaft rod (11), and a support rod (13) is fixed to the end of the connecting plate (10), and the support rod (13) is in sliding contact with the back of the meter body (1).

2. The smart electric meter according to claim 1, characterized in that: The heat sink (6) is arranged in a C-shaped structure, the heat sink (6) is arranged away from the side wall opening of the electric meter body (1), and both ends of the heat sink (6) are arranged with openings.

3. A smart electric meter according to claim 1 or 2, characterized in that: The end surface of the mounting frame (9) is provided with a plurality of through slots (901), and the through slots (901) are vertically extended.

4. A smart electric meter according to claim 1 or 2, characterized in that: A horizontally extending limit slot (301) is provided on the top of the limit frame (3), the limit slot (301) is vertically penetrated, and limit sliders (102) corresponding to the position of the limit slot (301) are fixed on the top and bottom of the electric meter body (1), and the limit sliders (102) are in sliding contact with the inner wall of the limit slot (301).

5. The smart electric meter according to claim 4, characterized in that: Open grooves (302) are provided at intervals on the outer walls on both sides of the limiting frame (3) and the inner walls on both sides of the limiting groove (301), and the opening grooves (302) are vertically penetrated.

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