An intelligent switching electric energy meter

Abstract

The present invention discloses an intelligent switching type electric energy meter, which belongs to the technical field of electric energy meters, and mainly includes a bottom shell, two wiring terminals are fixedly connected to one side of the inner wall of the bottom shell, and two switching terminals are arranged in front of the wiring terminals, the two switching terminals are fixedly connected to the bottom shell, and a frame slot plate is arranged on one side of the two wiring terminals, wherein a vertical constant pressure contact mechanism is arranged on the inner wall of the frame slot plate. The present invention adopts a vertical constant pressure contact mechanism, and starts two reduction motors through a controller, the distance between the two concave sleeve blocks increases, the distance between the two contact terminals on the inner wall of the switching terminal increases, and the tension value set by the tension sensor is the same as the tension value set by the controller. Then, the controller can connect the two reduction motors according to the specified contact force according to the wear area each time they are switched, so as to avoid poor contact after switching, and greatly improve the metering accuracy of the electric meter.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meters, and in particular to an intelligent switching electric energy meter. Background Art

[0002] The "switching" function in the smart switching electricity meter is mainly based on real-time electricity prices, load forecasts and user needs. The smart switching electricity meter can dynamically adjust the load distribution, achieve peak shaving and valley filling, optimize the utilization of power resources, and switch some non-critical loads to low electricity price periods during peak hours, thereby reducing electricity costs and reducing the peak load of the power grid.

[0003] In the existing public documents, the patent announcement number CN202502150U discloses a three-phase electronic smart energy meter, which uses a power switching module to control the switching between the main power supply and the auxiliary power supply according to the control signal sent by the single-chip microcomputer. When the auxiliary power supply is powered, the single-chip microcomputer controls the power switching module to cut off the main power supply to achieve the priority of the auxiliary power supply; when the auxiliary power supply is powered off, the single-chip microcomputer controls the power switching module to switch to the main power supply to achieve seamless power connection. However, the smart energy meter has the following problems.

[0004] During the switching process of the smart electric energy meter, the energized terminal needs to be switched to contact another circuit to supply power to the circuit to realize smart electric energy measurement. However, during the measurement process, due to the contact between the terminals, a certain amount of wear will be caused. After a long period of use, there will be a contact gap, resulting in poor contact. It is difficult to energize and connect according to the specified contact force based on the wear area, resulting in poor measurement accuracy of the smart electric energy meter. For this purpose, a smart switching electric energy meter is provided. Summary of the invention

[0005] To this end, the present invention provides an intelligent switching electric energy meter to solve the technical problems existing in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an intelligent switching type electric energy meter, comprising a bottom shell, two wiring terminals are fixedly connected to one side of the inner wall of the bottom shell, two switching terminals are arranged in front of the wiring terminals, the two switching terminals are fixedly connected to the bottom shell, one side of the two wiring terminals is provided with a frame slot plate, and the inner wall of the frame slot plate is provided with a vertical constant pressure contact mechanism;

[0007] The vertical constant pressure contact mechanism comprises a screw rod rotatably arranged on the inner wall of the frame slot plate, and a reduction motor is fixedly installed on the top of the frame slot plate, the reduction motor is used to drive the screw rod to rotate, and the outer wall of the screw rod is threadedly connected to two concave sleeve blocks;

[0008] One side of the inner wall of each concave sleeve block is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is rotatably connected with a sleeve rod, the inner wall of the sleeve rod is rotatably connected with a hinged push rod at a position away from the connecting shaft, and one end of the hinged push rod is welded with a concave block; one side of the concave block is fixedly connected with a connecting block, and two adjacent sides of the two connecting blocks are fixedly connected with tension sensors, a sliding frame is fixedly installed between the two tension sensors, and the inner wall of the sliding frame is slidably connected with a connecting terminal, and one end of the connecting terminal is fixedly installed with two contact springs, and one side of the connecting terminal is provided with a rotatably connected contact terminal, the two contact springs are fixedly connected to the contact terminals, and the contact terminals are slidably connected to the wiring terminals; one side of the screw rod is provided with a transverse fixed force contact mechanism; the bottom end of the frame slot plate is installed with a positioning switching component.

[0009] In the technical solution, the two concave sleeve blocks are both slidably connected to the frame slot plate, and the two threads on the outer wall of the screw rod are opposite and symmetrically arranged; the two concave sleeve blocks are symmetrically arranged about the middle of the screw rod, the concave block and the concave sleeve block are both rotatably connected to the sleeve rod, and the vertical cross-section shapes of the hinged push rod and the connecting shaft are both set to be circular, and the opposite ends of the two connecting blocks are fixedly connected to sliding columns, and the two sliding columns are both slidably connected to the frame slot plate;

[0010] A connecting wire is welded on the other side of the connecting terminal, and a metering circuit board is fixedly connected to the bottom end of the connecting wire; two incoming wire terminals are arranged on one side of the switching terminal, and the bottom ends of the two incoming wire terminals are welded to the top of the metering circuit board; a controller is fixedly installed on the other side of the inner wall of the bottom shell, and a top shell is plugged into the top of the bottom shell; a display screen is embedded and fixedly connected to the top of the top shell.

[0011] According to the technical solution, when in use, the two reduction motors drive the two screws to rotate respectively, and the distance between the two concave sleeve blocks increases. The connecting shaft drives the sleeve rod to move upward, while the other connecting shaft moves downward, the hinged push rod drives the concave block to move upward, the concave block carries the connecting block to move upward, and the sliding column slides along the inner wall of the frame slot plate. The connecting block pulls the tension sensor at the same time, the tension sensor pulls the sliding frame, the two contact springs pull the contact terminal, one contact terminal on the inner wall of the switching terminal moves upward and squeezes, and the other contact terminal on the inner wall of the switching terminal moves downward and squeezes, the tension sensor generates a tension value, and when the tension value set by the tension sensor is the same as the tension value set by the controller, the two reduction motors are turned off by the controller.

[0012] In the present technical solution, the lateral constant force contact mechanism includes a sliding frame arranged on one side of the screw; the outer wall of the sliding frame is fixedly connected to the frame slot plate, and the inner wall of the sliding frame is rotatably connected to a transmission screw, and a driving motor is fixedly installed on one side of the sliding frame, and the driving motor is used to drive the transmission screw to rotate; the outer wall of the transmission screw is threadedly connected to a socket plate, and two pressure sensors are fixedly installed on one side of the socket plate, and the output ends of the two pressure sensors are fixedly installed with extrusion columns, and the extrusion columns are slidably connected to the frame slot plate; a guide push rod is installed at one end of the extrusion column, and the two extrusion columns are fixedly connected to the guide push rod, the guide push rod is slidably connected to the frame slot plate, the two connecting terminals are slidably connected to the outer wall of the guide push rod, the outer wall of the socket plate is slidably connected to the sliding frame, the two pressure sensors are symmetrically arranged about the middle part of the socket plate, the two extrusion columns are symmetrically arranged about the sliding frame, and the vertical cross-section shape of the extrusion column is circular.

[0013] According to the technical solution, when in use, the two drive motors drive the two transmission screws to rotate respectively, and the transmission screw carries the socket plate to move left under the action of the thread transmission force, and at the same time the socket plate drives the two pressure sensors to move left, the pressure sensor drives the extrusion column to move left, the extrusion column carries the guide push rod to move left, the connection terminal slides left along the inner wall of the slide frame, and the connection terminal carries the two contact springs to move left. The side of the contact terminal is squeezed on one side of the inner wall of the switching terminal. Pressure sensing is achieved through two pressure sensors. When the lateral pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the two drive motors are turned off by the controller.

[0014] In the present technical solution, the positioning switching assembly includes a threaded sleeve fixedly installed at the bottom end of the frame slot plate; the number of the threaded sleeves is set to two, a distance sensor is fixedly installed on one side of the threaded sleeve, a linkage screw is installed on the inner wall of the threaded sleeve, the two threaded sleeves are threadedly connected to the linkage screw, and one end of the linkage screw is coaxially connected to a transmission motor; a sliding support frame is installed on one side of the transmission motor, the transmission motor and the bottom shell are fixedly connected to the sliding support frame, the bottom ends of the wiring terminals and the switching terminals are fixedly connected to sensing blocks, the two threaded sleeves are slidably connected to the sliding support frame, and the front of the sensing block and the front of the distance sensor are in the same vertical plane position.

[0015] According to the technical solution, when the switching time set on the controller is reached, the transmission motor drives the linkage screw to rotate on the inner wall of the sliding support frame, and the two threaded sleeves respectively drive the two frame slot plates to move right, the sleeve plate drives the two pressure sensors to move right, the guide push rod drives the two connection terminals to move right, and the connection terminals drive the two contact springs to move right, so that the contact terminals can enter the inner wall of the switching terminal. The distance sensor moves right from the sensing block at the bottom of the terminal until the distance sensor senses the sensing block at the bottom of the switching terminal. When the distance sensed by the distance sensor is the same as the distance set by the controller, the transmission motor is turned off by the controller.

[0016] The present invention has the following advantages:

[0017] 1. The present invention adopts a vertical constant-pressure contact mechanism, and two reduction motors are started by a controller. The two reduction motors drive the two screws to rotate respectively, and the distance between the two concave sleeve blocks becomes larger. The sleeve rod drives the hinged push rod to move upward, and the hinged push rod drives the concave block to move upward. The distance between the two contact terminals on the inner wall of the switching terminal becomes larger, and the two contact terminals form a firm extrusion contact with the inner wall of the switching terminal. The tension value set by the tension sensor is the same as the tension value set by the controller. Then, the two reduction motors are connected by the controller each time they are switched, and the specified contact force can be used according to the wear area to avoid poor contact after switching, thereby greatly improving the measurement accuracy of the electric meter.

[0018] 2. The present invention adopts a lateral constant force contact mechanism, which drives two transmission screws to rotate respectively through two driving motors, and the socket plate moves to the left along the inner wall of the sliding frame. At the same time, the socket plate drives the two pressure sensors to move left, and the connecting terminal slides to the left along the inner wall of the sliding frame. The two contact springs can drive the contact terminal to move left, and the side of the contact terminal is squeezed on one side of the inner wall of the switching terminal. When the lateral pressure value sensed by the pressure sensor is the same as the pressure value set by the controller, the two driving motors are turned off by the controller, which can ensure that the side of the contact terminal and the side of the inner wall of the switching terminal are switched at the specified pressure, avoiding poor contact after switching, and improving the measurement accuracy of the electric meter.

[0019] 3. The present invention adopts a positioning switching component. When the switching time set on the controller is reached, the transmission motor drive is started through the controller. The transmission motor drives the linkage screw to rotate on the inner wall of the sliding support frame. The two threaded sleeves respectively drive the two frame slot plates to move right. The sleeve plates drive the two pressure sensors to move right. The pressure sensor drives the extrusion column to move the guide push rod to the right. The contact terminal can enter the inner wall of the switching terminal. The distance sensor moves right from the sensing block at the bottom of the terminal. The distance sensor senses the sensing block at the bottom of the switching terminal to ensure that the contact terminal is accurately switched from the inner wall of the terminal to the inner wall of the switching terminal. Then, contact metering is achieved according to the specified pressure, thereby greatly improving the metering accuracy of the electric meter.

[0020] Through the mutual influence of the above-mentioned multiple effects, first ensure that the contact terminal is accurately switched from the inner wall of the wiring terminal to the inner wall of the switching terminal, then the side of the contact terminal and the side of the inner wall of the switching terminal are switched at a specified pressure, and finally the two contact terminals and the inner wall of the switching terminal are vertically contacted at a specified extrusion force. In summary, each time the switch is used, the horizontal connection and the vertical connection can be achieved according to the specified contact force according to the wear area, thereby avoiding poor contact after switching and greatly improving the measurement accuracy of the meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the intelligent switching electric energy meter of the present invention;

[0024] Figure 2 It is a schematic diagram of the disassembly structure of the intelligent switching electric energy meter of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal state structure of the bottom shell of the present invention;

[0026] Figure 4 It is a schematic diagram of the local structure of the vertical section of the connection between the threaded sleeve block and the distance sensor of the present invention;

[0027] Figure 5 It is a schematic diagram of a partial structure of a vertical section of the connection between the frame slot plate and the reduction motor of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0029] Figure 7 It is a schematic diagram of a partial structure of a vertical section of the connection between the bottom shell and the wiring terminal of the present invention;

[0030] Figure 8 It is a schematic diagram of the local structure of the vertical section of the connection between the frame groove plate and the sliding frame of the present invention;

[0031] Fig. 9 It is a schematic diagram of a partial structure of a vertical section of the connection between the sliding frame and the frame slot plate of the present invention;

[0032] Fig.10 It is a bottom view schematic diagram of the local structure of the positioning switching assembly of the present invention;

[0033] In the figure: 1, bottom shell; 2, wiring terminal; 3, switching terminal; 4, frame slot plate; 5, screw; 6, reduction motor; 7, concave sleeve block; 8, connecting shaft; 9, sleeve rod; 10, hinged push rod; 11, concave block; 12, connecting block; 13, tension sensor; 14, slide frame; 15, connecting terminal; 16, contact spring; 17, contact terminal; 18, slide column; 19, connecting line; 20, metering circuit board; 21, controller; 22, top shell; 23, display screen; 24, incoming line terminal; 25, slide frame; 26, transmission screw; 27, drive motor; 28, sleeve plate; 29, pressure sensor; 30, extrusion column; 31, guide push rod; 32, threaded sleeve block; 33, distance sensor; 34, linkage screw; 35, transmission motor; 36, sliding support frame; 37, induction block. DETAILED DESCRIPTION

[0034] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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.

[0035] As attached Figure 1 - Fig.10 An intelligent switching electric energy meter is shown, which is provided with a vertical constant pressure contact mechanism, a horizontal constant force contact mechanism, and a positioning switching component. Each mechanism and component is set to achieve horizontal connection and vertical connection according to the specified contact force according to the wear area each time it is switched, so as to avoid poor contact after switching and greatly improve the metering accuracy. The specific structural settings of each mechanism and component are as follows.

[0036] In this embodiment, as shown in the attached Figure 1 - Figure 8As shown, the two switching terminals 3 are fixedly connected to the bottom shell 1, and a frame slot plate 4 is provided on one side of the two wiring terminals 2. The inner wall of the frame slot plate 4 is provided with a vertical constant pressure contact mechanism; the vertical constant pressure contact mechanism includes a screw rod 5 rotatably arranged on the inner wall of the frame slot plate 4, and a reduction motor 6 is fixedly installed on the top of the frame slot plate 4, and the reduction motor 6 is used to drive the screw rod 5 to rotate. The outer wall of the screw rod 5 is threadedly connected to two concave sleeve blocks 7; a connecting shaft 8 is fixedly connected to one side of the inner wall of each concave sleeve block 7, and a sleeve rod 9 is rotatably connected to the outer wall of the connecting shaft 8, and a hinged push rod 10 is rotatably connected to the inner wall of the sleeve rod 9 and away from the connecting shaft 8, and a concave block 11 is welded to one end of the hinged push rod 10.

[0037] A connecting block 12 is fixedly connected to one side of the concave block 11, and tension sensors 13 are fixedly connected to the adjacent sides of the two connecting blocks 12. A sliding frame 14 is fixedly installed between the two tension sensors 13, and a connecting terminal 15 is slidably connected to the inner wall of the sliding frame 14. Two contact springs 16 are fixedly installed at one end of the connecting terminal 15, and a rotatably connected contact terminal 17 is provided on one side of the connecting terminal 15. The two contact springs 16 are fixedly connected to the contact terminal 17, and the contact terminal 17 is slidably connected to the wiring terminal 2; a transverse fixed force contact mechanism is provided on one side of the screw rod 5; a positioning switching component is installed at the bottom end of the frame slot plate 4.

[0038] In this embodiment, as shown in the attached Figure 1 - Figure 6 As shown, the opposite ends of the two connection blocks 12 are fixedly connected with sliding posts 18, and the two sliding posts 18 are slidably connected to the frame slot plate 4; the other side of the connection terminal 15 is welded with a connecting wire 19, and the bottom end of the connecting wire 19 is fixedly connected to the metering circuit board 20; one side of the switching terminal 3 is provided with two incoming terminals 24, and the bottom ends of the two incoming terminals 24 are welded to the top of the metering circuit board 20, so that the connection block 12 drives the sliding posts 18 to move upward, and the sliding posts 18 slide along the inner wall of the frame slot plate 4, and are connected to the incoming terminals 24 through the mains, and the incoming terminals 24 are connected to the metering circuit board 20, and the metering circuit board 20 is connected to the connection terminal 15 through the connecting wire 19, and the connection terminal 15 is connected to the contact terminal 17 through the contact spring 16. Then the contact terminal 17 is electrically connected through the switching terminal 3 to realize the power-on metering operation.

[0039] A controller 21 is fixedly installed on the other side of the inner wall of the bottom shell 1, and a top shell 22 is plugged into the top of the bottom shell 1; a display screen 23 is embedded and fixedly connected to the top of the top shell 22, so that when the switching time set on the controller 21 is reached, the transmission motor 35 is started by the controller 21, and then the bottom shell 1 supports the top shell 22, and the top shell 22 and the bottom shell 1 form a closed protection, and the display screen 23 can display the power measurement value.

[0040] In this embodiment, as shown in the attached Figure 8 - Fig. 9 As shown, the lateral constant force contact mechanism includes a sliding frame 25 arranged on one side of the screw rod 5; the outer wall of the sliding frame 25 is fixedly connected to the frame slot plate 4, and the inner wall of the sliding frame 25 is rotatably connected to a transmission screw rod 26, and a driving motor 27 is fixedly installed on one side of the sliding frame 25, and the driving motor 27 is used to drive the transmission screw rod 26 to rotate; the outer wall of the transmission screw 26 is threadedly connected to a socket plate 28, and one side of the socket plate 28 is fixedly installed with two pressure sensors 29, and the output ends of the two pressure sensors 29 are fixedly installed with extrusion columns 30, and the extrusion columns 30 are slidably connected to the frame slot plate 4; a guide push rod 31 is installed at one end of the extrusion column 30, and the two extrusion columns 30 are fixedly connected to the guide push rod 31, and the guide push rod 31 is slidably connected to the frame slot plate 4, and the two connecting terminals 15 are slidably connected to the outer wall of the guide push rod 31.

[0041] The outer wall of the sleeve plate 28 is slidably connected to the sliding frame 25, and two pressure sensors 29 are symmetrically arranged about the middle of the sleeve plate 28. Two extrusion columns 30 are symmetrically arranged about the sliding frame 25, and the vertical cross-section shape of the extrusion columns 30 is circular.

[0042] In this embodiment, as shown in the attached Figure 4 - Fig.10 As shown, the positioning switching assembly includes a threaded sleeve 32 fixedly mounted at the bottom end of the frame slot plate 4; the number of the threaded sleeve 32 is set to two, a distance sensor 33 is fixedly mounted on one side of the threaded sleeve 32, a linkage screw 34 is mounted on the inner wall of the threaded sleeve 32, the two threaded sleeves 32 are threadedly connected to the linkage screw 34, and one end of the linkage screw 34 is coaxially connected to a transmission motor 35; a sliding support frame 36 is mounted on one side of the transmission motor 35, the transmission motor 35 and the bottom shell 1 are fixedly connected to the sliding support frame 36, the bottom ends of the wiring terminal 2 and the switching terminal 3 are fixedly connected to the sensing block 37, the two threaded sleeves 32 are slidably connected to the sliding support frame 36, and the front of the sensing block 37 is in the same vertical plane position as the front of the distance sensor 33.

[0043] The method of using the intelligent switching electric energy meter of the present invention is as follows:

[0044] Step 1: When wiring, connect the mains power line to the two incoming terminals 24, connect to the metering circuit board 20 through the incoming terminals 24, and connect the small equipment line to the two wiring terminals 2 through bolts, and the large equipment line to the two switching terminals 3 through bolts. The bottom shell 1 supports the top shell 22, and the top shell 22 and the bottom shell 1 form a closed protection.

[0045] Step 2: During the positioning switching, when the switching time set on the controller 21 is reached, the controller 21 starts the transmission motor 35 to drive, and the transmission motor 35 drives the linkage screw 34 to rotate on the inner wall of the sliding support frame 36, and at the same time, the linkage screw 34 drives the two threaded sleeves 32 to move right under the action of the thread transmission force. The two threaded sleeves 32 respectively drive the two frame slot plates 4 to move right, the frame slot plates 4 drive the sliding frame 25 to move the socket plate 28 right, the socket plate 28 drives the two pressure sensors 29 to move right, the pressure sensor 29 drives the extrusion column 30 to move the guide push rod 31 right, the guide push rod 31 drives the two connection terminals 15 to move right, the connection terminals 15 drive the two contact springs 16 to move right, the two contact springs 16 drive the contact terminal 17 to move right, and the contact terminal 17 can enter the inner wall of the switching terminal 3. The threaded sleeve 32 drives the distance sensor 33 to move right, and the distance sensor 33 moves right from the sensing block 37 at the bottom of the wiring terminal 2 until the distance sensor 33 senses the sensing block 37 at the bottom of the switching terminal 3. The distance can be sensed by the distance sensor 33. When the distance sensed by the distance sensor 33 is the same as the distance set by the controller 21, the transmission motor 35 is turned off by the controller 21 to ensure that the contact terminal 17 is switched from the inner wall of the wiring terminal 2 to the inner wall of the switching terminal 3.

[0046] Step 3: When the lateral fixed force is in contact, the controller 21 starts the two drive motors 27, and the two drive motors 27 drive the two transmission screws 26 to rotate respectively. The transmission screw 26 carries the socket plate 28 to move left under the action of the thread transmission force, and the socket plate 28 moves to the left along the inner wall of the sliding frame 25. At the same time, the socket plate 28 drives the two pressure sensors 29 to move left, and the pressure sensor 29 drives the extrusion column 30 to move left. The extrusion column 30 carries the guide push rod 31 to move left, and the guide push rod 31 carries the two connection terminals 15 to move left. The connection terminals 15 slide to the left along the inner wall of the sliding frame 14, and the connection terminals 15 carry the two contact springs 16 to move left. Then the two contact springs 16 can drive the contact terminal 17 to move left, and the side of the contact terminal 17 is pressed on one side of the inner wall of the switching terminal 3. Pressure sensing is achieved through two pressure sensors 29. When the lateral pressure value sensed by the pressure sensor 29 is the same as the pressure value set by the controller 21, the two drive motors 27 are turned off by the controller 21, and the contact terminal 17 is electrically contacted with one side of the inner wall of the switching terminal 3 according to the specified pressure.

[0047] Step 4: When in vertical constant pressure contact, the two reduction motors 6 are started through the controller 21, and the two reduction motors 6 drive the two screws 5 to rotate respectively. The screws 5 carry the two concave sleeves 7 to move under the action of the thread transmission force, and the distance between the two concave sleeves 7 increases. The concave sleeve 7 drives the connecting shaft 8 to move upward, the connecting shaft 8 drives the sleeve rod 9 to move upward, and the other connecting shaft 8 moves downward, so that the sleeve rod 9 drives the articulated push rod 10 to move upward, the articulated push rod 10 drives the concave block 11 to move upward, the concave block 11 carries the connecting block 12 to move upward, the connecting block 12 drives the sliding column 18 to move upward, and the sliding column 18 slides along the inner wall of the frame groove plate 4.

[0048] The connecting block 12 pulls the tension sensor 13 at the same time, the tension sensor 13 pulls the sliding frame 14, the sliding frame 14 pulls the connecting terminal 15, the connecting terminal 15 pulls the two contact springs 16, the two contact springs 16 pull the contact terminal 17, and the contact terminal 17 moves upward, the distance between the two contact terminals 17 on the inner wall of the switching terminal 3 becomes larger, one contact terminal 17 on the inner wall of the switching terminal 3 moves upward for extrusion, and the other contact terminal 17 on the inner wall of the switching terminal 3 moves downward for extrusion, the two contact terminals 17 and the inner wall of the switching terminal 3 are firmly extruded, and the tension sensor 13 generates a tension value at the same time. When the tension value set by the tension sensor 13 is the same as the tension value set by the controller 21, the two reduction motors 6 are turned off by the controller 21, and the two contact terminals 17 inside the switching terminal 3 can achieve contact extrusion according to the specified pressure.

[0049] Step 5: During metering, the mains is connected to the incoming terminal 24, the incoming terminal 24 is connected to the metering circuit board 20, and the metering circuit board 20 is connected to the connecting terminal 15 through the connecting wire 19, and the connecting terminal 15 is connected to the contact terminal 17 through the contact spring 16. Then the contact terminal 17 is electrically connected through the switching terminal 3, so that the metering circuit board 20 realizes the electricity metering, and the measured value is displayed on the display screen 23. This metering method belongs to the existing public technology and will not be described in detail. Finally, the switching metering is completed.

[0050] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0051] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. An intelligent switching type electric energy meter, comprising a bottom shell (1), two wiring terminals (2) are fixedly connected to one side of the inner wall of the bottom shell (1), two switching terminals (3) are arranged in front of the wiring terminals (2), the two switching terminals (3) are fixedly connected to the bottom shell (1), and a frame slot plate (4) is arranged on one side of the two wiring terminals (2), characterized in that: The inner wall of the frame groove plate (4) is provided with a vertical constant pressure contact mechanism; The vertical constant pressure contact mechanism comprises a screw rod (5) rotatably arranged on the inner wall of the frame groove plate (4), and a reduction motor (6) is fixedly installed on the top end of the frame groove plate (4), and the reduction motor (6) is used to drive the screw rod (5) to rotate, and the outer wall of the screw rod (5) is threadedly connected with two concave sleeve blocks (7); A connecting shaft (8) is fixedly connected to one side of the inner wall of each concave sleeve block (7); a sleeve rod (9) is rotatably connected to the outer wall of the connecting shaft (8); a hinged push rod (10) is rotatably connected to the inner wall of the sleeve rod (9) at a position away from the connecting shaft (8); and a concave block (11) is welded to one end of the hinged push rod (10); A connecting block (12) is fixedly connected to one side of the concave block (11), and tension sensors (13) are fixedly connected to adjacent sides of the two connecting blocks (12). A sliding frame (14) is fixedly installed between the two tension sensors (13), and a connecting terminal (15) is slidably connected to the inner wall of the sliding frame (14). Two contact springs (16) are fixedly installed at one end of the connecting terminal (15), and a rotatably connected contact terminal (17) is provided on one side of the connecting terminal (15). The two contact springs (16) are fixedly connected to the contact terminal (17), and the contact terminal (17) is slidably connected to the wiring terminal (2); A lateral force-fixing contact mechanism is provided on one side of the screw rod (5); A positioning switching component is installed at the bottom end of the frame slot plate (4).

2. The intelligent switching electric energy meter according to claim 1, characterized in that: The two concave sleeve blocks (7) are both slidably connected to the frame slot plate (4), and the two threads on the outer wall of the screw rod (5) are opposite and symmetrically arranged; The two concave sleeve blocks (7) are symmetrically arranged about the middle of the screw rod (5).

3. The intelligent switching electric energy meter according to claim 1, characterized in that: The concave block (11) and the concave sleeve block (7) are both rotatably connected to the sleeve rod (9), and the vertical cross-section shapes of the hinged push rod (10) and the connecting shaft (8) are both set to be circular.

4. The intelligent switching electric energy meter according to claim 1, characterized in that: The opposite ends of the two connecting blocks (12) are fixedly connected with sliding columns (18), and the two sliding columns (18) are slidably connected to the frame groove plate (4); A connecting wire (19) is welded to the other side of the connecting terminal (15), and a metering circuit board (20) is fixedly connected to the bottom end of the connecting wire (19); Two incoming line terminals (24) are provided on one side of the switching terminal (3), and the bottom ends of the two incoming line terminals (24) are welded to the top end of the metering circuit board (20).

5. The intelligent switching electric energy meter according to claim 1, characterized in that: A controller (21) is fixedly mounted on the other side of the inner wall of the bottom shell (1), and a top shell (22) is plugged into the top of the bottom shell (1); A display screen (23) is embedded and fixedly connected to the top of the top shell (22).

6. The intelligent switching electric energy meter according to claim 1, characterized in that: The lateral fixed force contact mechanism comprises a sliding frame (25) arranged on one side of the screw rod (5); The outer wall of the sliding frame (25) is fixedly connected to the frame groove plate (4), and the inner wall of the sliding frame (25) is rotatably connected to a transmission screw (26). A driving motor (27) is fixedly installed on one side of the sliding frame (25), and the driving motor (27) is used to drive the transmission screw (26) to rotate; The outer wall of the transmission screw (26) is threadedly connected to a socket plate (28), one side of the socket plate (28) is fixedly mounted with two pressure sensors (29), the output ends of the two pressure sensors (29) are fixedly mounted with extrusion columns (30), and the extrusion columns (30) are slidably connected to the frame slot plate (4); A guide push rod (31) is installed at one end of the extrusion column (30), the two extrusion columns (30) are fixedly connected to the guide push rod (31), the guide push rod (31) is slidably connected to the frame groove plate (4), and the two connection terminals (15) are slidably connected to the outer wall of the guide push rod (31).

7. The intelligent switching electric energy meter according to claim 6, characterized in that: The outer wall of the sleeve plate (28) is slidably connected to the sliding frame (25), and the two pressure sensors (29) are symmetrically arranged about the middle of the sleeve plate (28).

8. The intelligent switching electric energy meter according to claim 6, characterized in that: The two extrusion columns (30) are symmetrically arranged with respect to the sliding frame (25), and the vertical cross-section shape of the extrusion columns (30) is circular.

9. The intelligent switching electric energy meter according to claim 1, characterized in that: The positioning switching assembly comprises a threaded sleeve block (32) fixedly mounted on the bottom end of the frame slot plate (4); The number of the threaded sleeve blocks (32) is set to two, a distance sensor (33) is fixedly mounted on one side of the threaded sleeve block (32), a linkage screw rod (34) is mounted on the inner wall of the threaded sleeve block (32), the two threaded sleeve blocks (32) are both threadedly connected to the linkage screw rod (34), and one end of the linkage screw rod (34) is coaxially connected to a transmission motor (35); A sliding support frame (36) is installed on one side of the transmission motor (35); the transmission motor (35) and the bottom shell (1) are fixedly connected to the sliding support frame (36); and the bottom ends of the connection terminals (2) and the switching terminals (3) are fixedly connected to induction blocks (37).

10. The intelligent switching electric energy meter according to claim 9, characterized in that: The two threaded sleeve blocks (32) are both slidably connected to the sliding support frame (36), and the front of the sensing block (37) and the front of the distance sensor (33) are located at the same vertical plane position.

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