A wall-mounted electric energy meter with stable display

Abstract

The present application discloses a wall-mounted electric energy meter with stable display, comprising an electric energy meter box, a discharge assembly and an electric energy meter body, wherein the discharge assembly is installed inside the electric energy meter box; the electric energy meter body is installed in the electric energy meter box through the discharge assembly; the wall-mounted electric energy meter with stable display in the embodiment of the present application, by arranging a transmission rod and a support tube, drives the permanent magnet block to move axially relative to the power-generating component when the transmission rod shakes, thereby increasing the magnetic field change between the two, thereby increasing the power generation, optimizing the display time of the electric energy meter body, utilizing the elasticity of the elastic block to increase the swing amplitude of the spherical block, thereby increasing the amplitude of the shaking of the electric energy meter body, achieving the effect of increasing the power generation of the electric energy meter body, and at the same time, by adjusting the number of spherical blocks, achieving the goal that the spherical blocks cannot be evenly distributed on the top of the electric energy meter body, thereby increasing the amplitude of the vibration when low-frequency vibration occurs, further optimizing the power generation brought by the electric energy meter body.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meters, and in particular to a wall-mounted electric energy meter with a stable display. Background Art

[0002] Existing electricity meters are usually fixed to the wall by installing screws. When disassembling or installing, the screws need to be removed, which is a cumbersome operation process, with high manual labor intensity and potentially long disassembly and installation time. Moreover, the electricity meter is installed on the wall or in the meter box, which may be subject to impact and may lack a buffer structure, resulting in a large impact and possible damage.

[0003] Patent application number: 202311303377.X discloses an energy-saving electricity meter. By setting up an independent self-powered structure, the electromagnetic induction structure inside the fixed transducer base and the secondary transducer mechanism is used to convert part of the mechanical kinetic energy when buffering the electricity meter into electrical energy for storage for display on the digital display. When it is necessary to observe the reading on the digital display surface, only a slight shake of the meter is required to display the value, thereby achieving self-power supply and autonomously waking up the digital display. The screen is turned off during the non-observation stage to save energy and ensure continuous battery life.

[0004] However, during use, the self-generating structure of the above-mentioned electric meter has problems such as low power generation efficiency, narrow response frequency range, and unstable output. Especially in a low-frequency vibration environment, it is difficult to obtain sufficient energy to drive the display screen to work continuously. In addition, the swing amplitude is limited and the magnetic field change rate is low, resulting in insufficient power generation, which limits its effectiveness in practical applications. Summary of the Invention

[0005] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, one purpose of this application is to provide a wall-mounted electricity meter with stable display. Through the cooperation of the transmission rod and the support tube, the permanent magnet block moves along the axial direction of the generating component during the shaking process, significantly enhancing the intensity of the magnetic field change, thereby improving the power generation efficiency.

[0007] To achieve the above-mentioned objectives, the first embodiment of the present application proposes a wall-mounted electricity meter with stable display, comprising an electricity meter box, a discharge assembly and an electricity meter body, wherein the discharge assembly is installed inside the electricity meter box; the electricity meter body is installed inside the electricity meter box through the discharge assembly; the discharge assembly includes a first support spring fixed inside the electricity meter box; a first support rod is installed on the inner wall of the electricity meter box; one end of the first support rod is ball-connected with a support tube; an electric component is slidingly arranged in the support tube; a permanent magnet block is installed in the support tube; a transmission rod is installed on the bottom surface of the electricity meter body, and the transmission rod is ball-connected with the electric component; a movable groove is provided on the support tube.

[0008] In addition, the wall-mounted electric energy meter with stable display proposed in the present application may also have the following additional technical features:

[0009] In one embodiment of the present application, two permanent magnet blocks are provided, and the two permanent magnet blocks are distributed on both sides of the support tube.

[0010] In one embodiment of the present application, it also includes a second support spring installed on the inner wall of the meter box, and the top end of the second support spring is spherically connected to the meter body; a second support rod is installed on the inner wall of the meter box, and the second support rod is located above the meter body; a first magnetic ring is installed in the meter box; a second magnetic ring is installed on the meter body, and the second magnetic ring is located on the inner side of the first magnetic ring, and the second magnetic ring does not contact the first magnetic ring.

[0011] In one embodiment of the present application, the second support rod is connected to the first support rod in the same structure.

[0012] In one embodiment of the present application, a guide groove is provided on the top surface of the electricity meter box; a plurality of spherical blocks are placed in the guide groove, and the second support rod is installed in the middle of the guide groove.

[0013] In one embodiment of the present application, the guide groove is conical, and the number of the spherical blocks is five.

[0014] In one embodiment of the present application, the five spherical blocks are evenly distributed around the second support rod.

[0015] In one embodiment of the present application, an elastic block is installed at the bottom end of the second support rod; the number of the spherical blocks is N, where N is the number of the spherical blocks.

[0016] In one embodiment of the present application, the elastic block is circular.

[0017] In one embodiment of the present application, the total number of the spherical blocks N=Int[π(D+d) / d]+1.

[0018] The wall-mounted electricity meter with stable display in the embodiment of the present application, by arranging the transmission rod and the support tube, drives the permanent magnet block to move axially relative to the power-generating component when the transmission rod shakes, thereby increasing the magnetic field change between the two, thereby increasing the power generation, optimizing the display time of the electricity meter body, and utilizing the elasticity of the elastic block to increase the swing amplitude of the spherical block, thereby increasing the amplitude of the shaking of the electricity meter body, thereby achieving the effect of increasing the power generation of the electricity meter body. At the same time, by adjusting the number of spherical blocks, the spherical blocks cannot be evenly distributed on the top of the electricity meter body, thereby increasing the amplitude of the vibration when low-frequency vibration occurs, further optimizing the power generation brought by the electricity meter body.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A schematic structural diagram of a wall-mounted electric energy meter with stable display according to an embodiment of the present application;

[0022] Figure 2 is a partial cross-sectional view of a discharge assembly according to one embodiment of the present application;

[0023] Figure 3 is a cross-sectional view of an electric meter box according to one embodiment of the present application;

[0024] Figure 4 Schematic diagram of the internal structure of the electric meter box according to the second embodiment of the present application;

[0025] Figure 5 Schematic diagram of the partial structure of the electric meter box according to the second embodiment of the present application;

[0026] Figure 6 Schematic diagram of the internal structure of the electric meter box according to the third embodiment of the present application;

[0027] Figure 7 This is a three-dimensional diagram of the main body of the electric meter according to the fourth embodiment of the present application;

[0028] Figure 8 This is a top view of the main body of the electric meter according to the fourth embodiment of the present application.

[0029] As shown in the figure: 10, electric meter box; 20, discharge assembly; 201, first support spring; 202, first support rod; 203, support tube; 204, generating component; 205, permanent magnet block; 206, transmission rod; 207, movable slot; 30, electric meter body; 301, second support spring; 302, second support rod; 303, first magnetic ring; 304, second magnetic ring; 40, guide slot; 41, spherical block; 50, elastic block. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0031] The following describes a wall-mounted electric energy meter with stable display according to an embodiment of the present application with reference to the accompanying drawings.

[0032] Example 1: Figure 1-Figure 2 As shown, the wall-mounted electric energy meter with stable display in the embodiment of the present application includes an electric meter box 10, a discharge component 20 and an electric meter body 30, wherein the discharge component 20 is installed inside the electric meter box 10; the electric meter body 30 is installed in the electric meter box 10 through the discharge component 20; the discharge component 20 includes a first support spring 201 fixed inside the electric meter box 10; a first support rod 202 is installed on the inner wall of the electric meter box 10; one end of the first support rod 202 is ball-connected with a support tube 203; an electric generating part 204 is slidingly arranged in the support tube 203; a permanent magnet block 205 is installed in the support tube 203; a transmission rod 206 is installed on the bottom surface of the electric meter body 30, and the transmission rod 206 is ball-connected with the electric generating part 204; a movable groove 207 is opened on the support tube 203.

[0033] It should be noted that the electrical component 204 of the present application includes a fixed box, a yoke disk, and an induction coil. When the meter body 30 shakes, the support tube 203 rotates and the electrical component 204 moves toward the permanent magnet block 205. The permanent magnet block 205 magnetizes each yoke on the surface of the yoke disk. The magnetization effect changes with the movement of the permanent magnet block 205, causing the magnetic field inside the induction coil to change, thereby generating current through electromagnetic induction.

[0034] It should be noted that the amount of power generated by the electromagnetic induction principle depends on the rate of change of magnetic flux (ΔΦ / Δt), and ΔΦ / Δt is directly related to the direction of movement of the permanent magnet and the angle between the magnetic flux lines.

[0035] Axial (Z-axis) vibration: The permanent magnet 205 moves along the normal direction of the generator 204, which has the highest efficiency in cutting the magnetic flux lines, maximizes ΔΦ / Δt, and the power generation efficiency can reach 50μW@0.1g;

[0036] Transverse (X / Y axis) vibration: The permanent magnet block 205 slides in the plane of the generator 204, the magnetic flux lines are parallel to the direction of motion, ΔΦ / Δt is only 30%-50% of the axial direction, and the power generation efficiency drops to 15-25μW@0.1g;

[0037] Oblique vibration: decomposed into axial and lateral components, the power generation efficiency is between the two.

[0038] In real environments, vibrations are often mixed in multiple directions, and the total power generation is the vector sum of the components in each direction. For example:

[0039] θ = 30° oblique vibration: Total power ≈ Z-axis component × cos30° + X / Y-axis component × sin30° × 0.4 = 50μW × 0.87 + 25μW × 0.5 × 0.4 ≈ 43.5μW + 5μW = 48.5μW.

[0040] Such as: axial (Z-axis) vibration advantage

[0041] High flux change rate:

[0042] The permanent magnet block 205 moves along the normal direction of the power generating component 204, which is completely orthogonal to the magnetic flux lines. ΔΦ / Δt is maximized, and the power generation efficiency reaches 50μW.

[0043] Typical scenarios:

[0044] The vibration of industrial equipment (such as a motor base) generates 50 μWh of electricity per hour, which can provide 10 wake-up operations (5 μWh each) for the meter screen.

[0045] (2) Non-axial (X / Y axis) vibration limitations

[0046] Inefficient magnetic circuit coupling:

[0047] During lateral vibration, the permanent magnet block 205 slides parallel to the plane of the generating element 204, and only the edge magnetic field participates in the cutting, and ΔΦ / Δt decreases by 60%.

[0048] Application Restrictions:

[0049] Under pure X-axis vibration, the power generation is 20μWh per hour, which only supports 4 screen wake-up times and requires reliance on other energy supply methods (such as supercapacitor energy storage).

[0050] (3) Superposition effect of composite vibration (Z+X)

[0051] Energy breakdown:

[0052] When the vibration energy is evenly distributed, the total power ≈ Z-axis component (25μW) + X-axis component (10μW) = 35μW, and the efficiency is 70% of the pure Z-axis.

[0053] Practical significance:

[0054] In urban environments, vibrations are mostly in complex directions, and the system can still maintain usable power generation.

[0055] Conclusion: Axial vibration is the optimal direction for power generation efficiency, and its power is 2-3 times that of non-axial vibration.

[0056] In one embodiment of the present application, Figure 2 As shown, two permanent magnet blocks 205 are provided, and the two permanent magnet blocks 205 are distributed on both sides of the support tube 203 .

[0057] It should be noted that the arrangement of the two permanent magnet blocks 205 can generate electricity when the electricity generating component 204 moves left and right.

[0058] Specifically, during the actual implementation process, if the meter box 10 vibrates, the meter body 30 in the meter box 10 will vibrate. Since the meter body 30 is supported by the first support spring 201, the meter body 30 will swing up and down when the meter box vibrates. The swing of the meter body 30 will drive the transmission rod 206 to move up and down. The downward movement of the transmission rod 206 will cause the transmission rod 206 to push the support tube 203 and the live electric component 204, causing the support tube 203 to rotate and the live electric component 204 to move toward the permanent magnet block 205. The upward movement of the transmission rod 206 will cause the transmission rod 206 to pull the support tube 203 and the live electric component 204, causing the support tube 203 to rotate and the live electric component 204 to reset, and then when the transmission rod 206 moves up and down, the live electric component 204 and the permanent magnet block 205 generate stable electricity.

[0059] By setting the transmission rod 206 and the support tube 203, when the transmission rod 206 shakes, it drives the generating element 204 to move axially relative to the permanent magnet block 205, thereby increasing the magnetic field change between the two, thereby increasing the power generation and optimizing the display time of the electricity meter body 1.

[0060] Example 2: In one embodiment of the present application, Figure 4 and Figure 5As shown, it also includes a second support spring 301 installed on the inner wall of the meter box 10, and the top of the second support spring 301 is spherically connected to the meter body 30; a second support rod 302 is installed on the inner wall of the meter box 10, and the second support rod 302 is located above the meter body 30; a first magnetic ring 303 is installed in the meter box 10; a second magnetic ring 304 is installed on the meter body 30, and the second magnetic ring 304 is located on the inner side of the first magnetic ring 303, and the second magnetic ring 304 does not contact the first magnetic ring 303.

[0061] Specifically, in the first embodiment, the shaking frequency of the electric meter body 30 is limited, resulting in a limited amount of power generation.

[0062] The meter body 30 is supported at the bottom by a second support spring 301, and a second support rod 302 is provided above the meter body 30, so that when the meter body 30 shakes, the second magnetic ring 304 is driven to shake. Since the second magnetic ring 304 and the first magnetic ring 303 repel each other, when the second magnetic ring 304 approaches the first magnetic ring 303, the mutual repulsion between the two is utilized to cause the second magnetic ring 304 to drive the meter body 30 to move in the opposite direction, thereby increasing the frequency of the shaking of the meter body 30, and thereby increasing the number of times the permanent magnet block 205 and the power generating component 204 on the second support rod 302 move relative to each other, thereby increasing the power generation amount.

[0063] In one embodiment of the present application, Figure 4 and Figure 5 As shown, the second support rod 302 has the same structure as the first support rod 202 .

[0064] It should be noted that the power generation principle of the second support rod 302 is the same as that of the first support rod 202. Only the structure of the above solution is adjusted to optimize the solution, and the structure of the power generation part does not change.

[0065] Example 3: In one embodiment of the present application, Figure 6 As shown, a guide groove 40 is opened on the top surface of the meter box 10 ; a plurality of spherical blocks 41 are placed in the guide groove 40 , and the second support rod 302 is installed in the middle of the guide groove 40 .

[0066] In one embodiment of the present application, Figure 6 As shown, the guide groove 40 is conical, and the number of the spherical blocks 41 is five.

[0067] It should be noted that an annular strip is provided at the top of the guide groove 40 , which can limit the maximum moving distance of the spherical block 41 and prevent the spherical block 41 from flowing out of the guide groove 40 .

[0068] In one embodiment of the present application, Figure 6 As shown, the five spherical blocks 41 are evenly distributed around the second support rod 302 .

[0069] It should be noted that the spherical block 41 is an iron ball or a steel ball, which has a certain weight. Therefore, when the spherical block 41 shakes, the amplitude of the shaking of the electric meter body 30 can be increased.

[0070] Specifically, in the second embodiment, the meter body 30 is affected by the vibration force, so that the swing amplitude of the meter body 30 is limited, which in turn affects the power generation.

[0071] By providing a guide groove 40 at the top of the meter body 30, when the meter body 30 shakes, the spherical block 41 in the guide groove 40 will be driven to move in the direction of the tilt of the meter body 30, so that the spherical block 41 increases the swing amplitude of the meter body 30, and increases the moving distance between the permanent magnet block 205 and the generating component 204, thereby further improving the power generation.

[0072] Example 4: In one embodiment of the present application, Figure 7 and Figure 8 As shown, an elastic block 50 is installed at the bottom end of the second support rod 302 ; the number of the spherical blocks 41 is N, where N is the number of the spherical blocks 41 .

[0073] In one embodiment of the present application, Figure 7 and Figure 8 As shown, the elastic block 50 is circular.

[0074] In one embodiment of the present application, Figure 7 and Figure 8 As shown, the total number of the spherical blocks 41 is N=Int[π(D+d) / d]+1.

[0075] Wherein: D is the diameter of the circumscribed circle of the elastic block 50, d is the diameter of the spherical block 41, and Int[] represents an upward rounding function.

[0076] For example: Int[π(20+5) / 5]+1 is approximately equal to Int[15.7], which is rounded down to 15, so the compensation for one ball is 16;

[0077] Specifically, in the third embodiment, the five spherical blocks 41 are evenly distributed, so that when the area of ​​the meter body 30 is horizontal, vibrations of a lower frequency will not cause the spherical blocks 41 to swing.

[0078] By setting the elastic block 50, when the meter body 30 shakes slightly, the spherical block 41 uses the elasticity of the elastic block 50 to increase the swing amplitude of the spherical block 41, thereby increasing the amplitude of the shaking of the meter body 30, thereby achieving the effect of increasing the power generation of the meter body 30. At the same time, by adjusting the number of spherical blocks 41, the spherical blocks 41 cannot be evenly distributed on the top of the meter body 30, and thus when low-frequency vibration occurs, the amplitude of the vibration can be increased, further optimizing the power generation brought by the meter body 30.

[0079] In summary, the wall-mounted electricity meter with stable display in the embodiment of the present application, by setting the transmission rod 206 and the support tube 203, drives the power-generating component 204 to move axially relative to the permanent magnet block 205 when the transmission rod 206 shakes, thereby increasing the magnetic field change between the two, thereby increasing the power generation, optimizing the display time of the electricity meter body 1, and utilizing the elasticity of the elastic block 50 to increase the swing amplitude of the spherical block 41, thereby increasing the swing amplitude of the meter body 30, thereby achieving the effect of increasing the power generation of the meter body 30, and at the same time, by adjusting the number of spherical blocks 41, the spherical blocks 41 cannot be evenly distributed on the top of the meter body 30, and thus when low-frequency vibration occurs, the vibration amplitude can be increased, further optimizing the power generation brought by the meter body 30.

[0080] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0082] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A wall-mounted electric energy meter with stable display, characterized in that: It comprises an electric meter box (10), a discharge assembly (20) and an electric meter body (30), wherein: The discharge assembly (20) is installed inside the electric meter box (10); The electric meter body (30) is installed in the electric meter box (10) via the discharge assembly (20); The discharge assembly (20) comprises a first support spring (201) fixed inside the electricity meter box (10); A first support rod (202) is installed on the inner wall of the electric meter box (10); One end of the first support rod (202) is spherically connected to a support tube (203); An electricity generating component (204) is slidably arranged in the support tube (203); A permanent magnet block (205) is installed in the support tube (203); A transmission rod (206) is installed on the bottom surface of the electricity meter body (30), and the transmission rod (206) is spherically connected to the electricity generating component (204); The support tube (203) is provided with a moving groove (207).

2. The wall-mounted electric energy meter with stable display according to claim 1, characterized in that: Two permanent magnet blocks (205) are provided, and the two permanent magnet blocks (205) are distributed on both sides of the support tube (203).

3. The wall-mounted electric energy meter with stable display according to claim 1, characterized in that: It also includes a second support spring (301) installed on the inner wall of the meter box (10), and the top end of the second support spring (301) is spherically connected to the meter body (30); A second support rod (302) is installed on the inner wall of the meter box (10), and the second support rod (302) is located above the meter body (30); A first magnetic ring (303) is installed in the electric meter box (10); A second magnetic ring (304) is installed on the electric meter body (30), the second magnetic ring (304) is located inside the first magnetic ring (303), and the second magnetic ring (304) does not contact the first magnetic ring (303).

4. The wall-mounted electric energy meter with stable display according to claim 3, characterized in that: The second support rod (302) has the same structure as the first support rod (202) in connection therewith.

5. The wall-mounted electric energy meter with stable display according to claim 3, characterized in that: A guide groove (40) is provided on the top surface of the electric meter box (10); A plurality of spherical blocks (41) are placed in the guide groove (40), and the second support rod (302) is installed in the middle of the guide groove (40).

6. The wall-mounted electric energy meter with stable display according to claim 5, characterized in that: The guide groove (40) is conical, and the number of the spherical blocks (41) is five.

7. The wall-mounted electric energy meter with stable display according to claim 6, characterized in that: The five spherical blocks (41) are evenly distributed around the second support rod (302).

8. The wall-mounted electric energy meter with stable display according to claim 5, characterized in that: An elastic block (50) is installed at the bottom end of the second support rod (302); The number of the spherical blocks (41) is N.

9. The wall-mounted electric energy meter with stable display according to claim 8, characterized in that: The elastic block (50) is circular.

10. The wall-mounted electric energy meter with stable display according to claim 8, characterized in that: The total number of spherical blocks (41) N=Int[π(D+d) / d]+1, where N is the number of spherical blocks (41); Where: D is the diameter of the circumscribed circle of the elastic block (50), d is the diameter of the spherical block (41), and Int[] represents the rounding function.

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