Ultra-low power consumption electric energy meter convenient for replacing power module

Abstract

The utility model provides an ultra-low power consumption electric energy meter convenient for replacing a power module, which relates to the technical field of electric energy meters, and comprises a shell, a wiring part, a PCB (printed circuit board) and a display are arranged in the shell, the wiring part, the PCB and the display are electrically connected, a buckle mechanism is arranged on the PCB, the power module is arranged in the buckle mechanism, and the power module is arranged in the shell. The power module is detachably installed on the PCB through the buckle mechanism. In the using process of the electric energy meter, the power module often bears the effect of changing voltage and current and converts the voltage and the current into measurable signals, so that the power module is often easy to damage and short in service life, and when the power module is damaged, the electric energy meter needs to be directly replaced, so that the cost is low. According to the utility model, through the arrangement of the buckle mechanism, the replacement operation of the power module can be rapidly completed, the replacement is more convenient, the cost is effectively saved, and the practicability is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter, concretely is a kind of super low power electric energy meter of power module convenient to replace. BACKGROUND

[0002] Electric energy meter is used to measure electric energy, also known as electric meter, fire table, kilowatt-hour meter, it measures various electrical instruments;

[0003] Power module is also called electric energy metering module, usually including current transformer (CT) and voltage transformer (VT), they are used to convert current and voltage into measurable signal, CT and VT respectively convert high current and high voltage into low current and low voltage suitable for measurement;Specifically, current and voltage signals will be used to calculate power (P), power is current multiplied by voltage. Then, these power values will be integrated, that is, the power value is added in a certain time to obtain the consumed electric energy. This integral value is recorded in a specific unit (usually kWh) and used to measure and count the use of electric energy;

[0004] The existing power module bears the role of changing voltage and changing current, converts voltage and current into measurable signal, so the power module in electric energy meter is often damaged more easily, and the service life is shorter, at this time, power module needs to be replaced or directly replaced electric energy meter, and the cost of directly replacing electric energy meter is higher, and the existing power module is fixed on PCB, and PCB is damaged when power module is removed, further increasing cost. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of super low power electric energy meter of power module convenient to replace to solve the problems raised in the above background.

[0006] To solve the above technical problems, the utility model discloses a kind of super low power electric energy meter of power module convenient to replace, including shell, wiring part, PCB and display are arranged in shell, wiring part, PCB and display are electrically connected, buckle mechanism is arranged on PCB, power module is arranged in buckle mechanism, and power module is detachably installed on PCB by buckle mechanism.

[0007] Preferably, communication module and quartz resonator are further provided on the PCB.

[0008] Preferably, the buckle mechanism includes front and rear symmetrical fixed plates, two front and rear symmetrical insulating plates are arranged on the side of the fixed plates close to each other, a plurality of first springs are fixedly arranged on the insulating plates, a moving block is fixedly arranged on the upper end of the first spring, and the power module is in contact with the moving block.

[0009] Preferably, the insulating plates are fixed with vertical plates on the sides close to each other, and the moving blocks are slidingly arranged on the vertical plates.

[0010] Preferably, the fixing plates are slidingly arranged with L-shaped plates on the sides close to each other, the L-shaped plates are provided with a plurality of special-shaped hooks on the lower sides, the L-shaped plates are in contact with the special-shaped hooks, the special-shaped hooks are provided with pressing blocks on the lower sides, the pressing blocks are in contact with the special-shaped hooks, the second springs are fixed on the lower ends of the pressing blocks, and the second springs are fixed on the insulating plates.

[0011] Preferably, the power module is further provided with a plurality of limiting grooves arranged in front of and behind the special-shaped hooks.

[0012] Preferably, the buckle mechanism further comprises left-right symmetrical limiting plates, the limiting plates are fixed with rotating rods arranged in front of and behind each other on the sides close to each other, and the special-shaped hooks are fixed on the rotating rods.

[0013] Preferably, one of the limiting plates is hinged with a cover plate, the other limiting plate is rotatably provided with a rotating rod, the rotating rod is fixed with a rhombic block, and the cover plate is provided with a rectangular through slot.

[0014] Preferably, the height of the limiting plate is greater than the height of the fixing plate.

[0015] Preferably, the power module is further provided with a plurality of grabbing pads arranged in front of and behind each other.

[0016] Compared with the prior art, the utility model provides a kind of ultra-low power consumption electric energy meter of power module is replaced with, and the utility model discloses a buckle mechanism can be quickly completed power module replacement operation, and it is more convenient to replace new, also will not cause damage to PCB board, effectively save cost, and practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the utility model, and constitute part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute limitation to the utility model.In the drawings:

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the cooperation schematic diagram of the power module and buckle mechanism of the utility model;

[0020] Figure 3 It is the partial structure side view of the buckle mechanism of the utility model;

[0021] Figure 4 It is the bottom view of the buckle mechanism of the utility model;

[0022] Figure 5This is a schematic diagram of the cover plate of this utility model.

[0023] In the diagram: 1. Housing; 2. Display; 3. PCB board; 4. Power module; 5. Wiring section; 6. Limiting plate; 7. Fixing plate; 8. L-shaped plate; 9. Diamond block; 10. Buckling mechanism; 11. Limiting groove; 12. Moving block; 13. First spring; 14. Second spring; 15. Irregular hook; 16. Gripping pad; 17. Rotating rod; 18. Cover plate; 19. Insulating plate; 20. Communication module; 21. Quartz resonator; 22. Vertical plate; 23. Rotating rod; 24. Pressing block; 25. Rectangular through slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] An embodiment of this utility model provides an ultra-low power energy meter that facilitates the replacement of power modules, such as... Figures 1-5As shown, including the shell 1, the shell 1 is provided with wiring part 5, PCB board 3 and display 2, wiring part 5, PCB board 3 and display 2 are electrically connected, the PCB board 3 is provided with buckle mechanism 10, the buckle mechanism 10 is provided with power module 4, the power module 4 is detachably installed on the PCB board 3 through the buckle mechanism 10.

[0029] Preferably, the PCB board 3 is further provided with a communication module 20 and a quartz resonator 21.

[0030] The communication module 20 is the basis of data transmission and data interaction, and is the basis of intelligent power grid data, intelligent and fine scientific management, and is the basis of man-machine interaction in the development of Internet of Things.

[0031] The quartz resonator 21, also known as a quartz crystal oscillator, is an electronic component for stabilizing frequency and selecting frequency, and generates a clock signal for data processing equipment.

[0032] The working principle and beneficial effects of the above technical scheme are as follows: the wiring part 5 is connected with the municipal line, and the power module 4, i.e. the metering module, converts the current and voltage into measurable signals. Once the current and voltage signals are converted, they will be input into the metering chip or the electric energy meter chip for electric energy metering. CT and VT convert high current and high voltage into low current and low voltage suitable for measurement. Specifically, the current and voltage signals will be used to calculate power (P), which is the product of current and voltage. Then, these power values will be integrated, i.e. the power values will be added within a certain time to obtain the consumed electric energy.

[0033] When the power module 4 is damaged, the damaged power module 4 can be removed through the buckle mechanism 10, and then a new power module 4 can be installed. By setting the buckle mechanism 10, the replacement operation of the power module 4 can be quickly completed, the replacement is more convenient, and the PCB board will not be damaged, effectively saving the cost and having strong practicality.

[0034] Embodiment 2

[0035] Based on the above embodiment 1, as shown in Figures 1-4 The buckle mechanism 10 includes front and rear symmetrical fixed plates 7, the side close to each other of the fixed plates 7 is provided with two front and rear symmetrical insulating plates 19, a plurality of first springs 13 are fixedly arranged on the insulating plates 19, a moving block 12 is fixedly arranged on the upper end of the first spring 13, and the power module 4 is in contact with the moving block 12.

[0036] Preferably, the side close to each other of the insulating plates 19 is fixedly provided with a vertical plate 22, and the moving block 12 is slidingly arranged on the vertical plate 22.

[0037] Preferably, the fixed plates 7 are provided with L-shaped plates 8 on the side close to each other, the L-shaped plates 8 are provided with a plurality of special-shaped hooks 15 on the lower side, the L-shaped plates 8 are in contact with the special-shaped hooks 15, the special-shaped hooks 15 are provided with pressing blocks 24 on the lower side, the pressing blocks 24 are in contact with the special-shaped hooks 15, the pressing blocks 24 are provided with second springs 14 on the lower end, and the second springs 14 are fixed on the insulating plates 19.

[0038] Preferably, the power module 4 is provided with a plurality of limiting grooves 11 on the front and back sides, and the limiting grooves 11 are matched with the special-shaped hooks 15.

[0039] Preferably, the buckle mechanism 10 further comprises left and right symmetrical limiting plates 6, the side close to each other of the limiting plates 6 is provided with front and back symmetrical rotating rods 23, and the special-shaped hooks 15 are fixed on the rotating rods 23.

[0040] The working principle and beneficial effects of the above technical scheme are as follows: when the power module 4 needs to be replaced, the L-shaped plate 8 is pressed, the L-shaped plate 8 generates a pressure on the special-shaped hook 15, the special-shaped hook 15 drives the rotating rod 23 to rotate, the special-shaped hook 15 drives the pressing block 24 to descend, and the second spring 14 is compressed. When the special-shaped hook 15 rotates, the special-shaped hook 15 will leave the limiting groove 11, and then the damaged power module 4 can be taken out.

[0041] Then a new power module 4 is taken, the power module 4 is pressed downward, the power module 4 will be opened (the rotating rod 23 rotates) under the action of the pressure, then the power module 4 drives the moving block 12 to move downward, when it moves to the position matched with the limiting groove 11 and the special-shaped hook 15, the special-shaped hook 15 is reset under the action of the second spring 14, the special-shaped hook 15 is clamped into the limiting groove 11, and through the cooperation of the special-shaped hook 15 and the limiting groove 11, the new power module 4 can be quickly limited. At the same time, under the cooperation of the L-shaped plate 8, the special-shaped hook 15, the pressing block 24 and the second spring 14, the damaged power module 4 can be quickly removed (after the installation of the power module 4 is completed, the power module 4 and the PCB can be reconnected, or a contact can be arranged at the bottom of the power module 4, and the PCB 3 is connected through the contact), which is simple in structure, convenient to use and high in practicability.

[0042] Embodiment 3

[0043] Based on the above embodiment 2, as shown in Figures 1-2 , Figures 4-5 One of the limiting plates 6 is hinged with a cover plate 18, the other limiting plate 6 is provided with a rotating rod 17, the rotating rod 17 is fixed with a rhombus block 9, and the cover plate 18 is provided with a rectangular through slot 25.

[0044] The working principle and beneficial effects of the technical scheme are as follows: after the new power module 4 is installed, the cover plate 18 on one of the limiting plates 6 is rotated, the rectangular through slot 25 on the cover plate 18 is passed through the rhombic block 9, the cover plate 18 is in contact with the upper surface of the other limiting plate 6, then the rhombic block 9 is rotated, the rhombic block 9 drives the rotating rod 17 to rotate, and the rhombic block 9 blocks the rectangular through slot 25, so that the cover plate 18 cannot be rotated; similarly, when the damaged power module 4 needs to be removed, the rhombic block 9 is rotated, the rectangular through slot 25 is passed through the rhombic block 9, and the cover plate 18 is opened; by arranging the rhombic block 9, the cover plate 18 can be quickly limited, the cover plate 18 can also further limit the power module 4, the structure is simple, and the use is more convenient.

[0045] Embodiment 4

[0046] Based on the above-mentioned embodiment 3, as shown in the figure, the height of the limiting plate 6 is greater than the height of the fixed plate 7. Figures 3-5

[0047] Preferably, the power module 4 is further provided with a front and back symmetrical grabbing pad 16.

[0048] Preferably, the height of the power module 4 is consistent with the height of the limiting plate 6.

[0049] The beneficial effects of the technical scheme are as follows: by arranging the limiting plate 6 to be higher than the fixed plate 7, that is, a part of the front and back sides of the power module 4 is exposed, the power module 4 is more convenient to grab, and by arranging the grabbing pad 16 on the front and back sides of the power module 4, the friction force during grabbing is further increased, the power module 4 can be quickly taken out, and the practicality is stronger.

[0050] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application.​

Claims

1. An ultra-low power consumption electric energy meter facilitating replacement of a power module, characterized in that: it comprises a shell (1), a wiring part (5), a PCB (3) and a display (2) are arranged in the shell (1), the wiring part (5), the PCB (3) and the display (2) are electrically connected, a buckle mechanism (10) is arranged on the PCB (3), a power module (4) is arranged in the buckle mechanism (10), and the power module (4) is detachably installed on the PCB (3) through the buckle mechanism (10).

2. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 1, characterized in that: the PCB (3) is further provided with a communication module (20) and a quartz resonator (21).

3. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 1, characterized in that: the buckle mechanism (10) comprises front and back symmetrical fixed plates (7), the side close to each other of the fixed plates (7) is provided with two front and back symmetrical insulating plates (19), a plurality of first springs (13) are fixedly arranged on the insulating plates (19), a moving block (12) is fixedly arranged on the upper end of the first spring (13), and the power module (4) is in contact with the moving block (12).

4. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 3, characterized in that: the side close to each other of the insulating plates (19) is fixedly provided with a vertical plate (22), and the moving block (12) is slidingly arranged on the vertical plate (22).

5. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 3, characterized in that: the side close to each other of the fixed plates (7) is slidingly provided with an L-shaped plate (8), a plurality of special-shaped hooks (15) are arranged on the lower side of the L-shaped plate (8), the L-shaped plate (8) is in contact with the special-shaped hooks (15), a pressing block (24) is arranged on the lower side of the special-shaped hook (15), the pressing block (24) is in contact with the special-shaped hook (15), a second spring (14) is fixedly arranged on the lower end of the pressing block (24), and the second spring (14) is fixedly arranged on the insulating plate (19).

6. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 5, characterized in that: a plurality of limiting grooves (11) are symmetrically arranged on the power module (4), and the limiting grooves (11) are matched with the special-shaped hooks (15).

7. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 6, characterized in that: the buckle mechanism (10) further comprises left and right symmetrical limiting plates (6), the side close to each other of the limiting plates (6) is fixedly provided with front and back symmetrical rotating rods (23), and the special-shaped hooks (15) are fixedly arranged on the rotating rods (23).

8. The ultra-low power consumption electric energy meter facilitating replacement of a power module according to claim 7, characterized in that: one of the limiting plates (6) is hingedly provided with a cover plate (18), the other limiting plate (6) is rotatably provided with a rotating rod (17), a rhombic block (9) is fixedly arranged on the rotating rod (17), and a rectangular through slot (25) is arranged on the cover plate (18). ​ ​ ​ ​ ​ ​ ​ ​ 9. The super low power consumption watt-hour meter convenient to replace power module according to claim 8, characterized in that: The height of the limiting plate (6) is greater than the height of the fixed plate (7).

10. The super low power consumption watt-hour meter convenient to replace power module according to claim 3, characterized in that: The power module (4) is also provided with a grabbing pad (16) symmetrically arranged front and back.

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