Structural assembly with electromagnetic shielding function and electric energy meter

Abstract

The utility model discloses structural assembly and electric energy meter of configuration electromagnetic shielding function relates to electric energy meter technical field, and electric energy meter includes the casing, still includes, the sealed rubber strip is set between frame strip no.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to a structural component and an electricity meter equipped with electromagnetic shielding function. Background Technology

[0002] With the rapid development of electronic technology, electricity meters, as key devices in power systems used to measure and record electricity consumption, have received increasing attention for their performance and reliability. In today's complex electromagnetic environment, external electromagnetic fields can interfere with the normal operation of electricity meters, affecting measurement accuracy and data transmission precision. To ensure stable and accurate operation of electricity meters under various electromagnetic environments, electromagnetic shielding is crucial. Structural components equipped with electromagnetic shielding can effectively block interference from external electromagnetic fields, providing a relatively stable electromagnetic environment for the electricity meter.

[0003] However, existing electricity meters still have the following shortcomings in configuring electromagnetic shielding components: In actual use, due to changes in ambient temperature, the equipment will experience thermal expansion and contraction. Under such circumstances, the existing electromagnetic shielding structure of electricity meters cannot automatically adjust the sealing state according to the changes in thermal expansion and contraction, which easily creates gaps. These gaps can become channels for external electromagnetic fields to enter the inside of the electricity meter, weakening the electromagnetic shielding function. External electromagnetic fields may interfere with the normal operation of the electricity meter through these gaps, leading to increased measurement errors and affecting the stability and lifespan of the electricity meter. Utility Model Content

[0004] The purpose of this invention is to provide a structural component and an energy meter with electromagnetic shielding function to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electricity meter, including a housing, and further comprising; A sealing rubber strip is installed between frame strip one and frame strip two on the inner wall of the middle section of the housing; The contact component is located on the inner wall of the front end of the housing; The pressure-bearing component is located in the middle section of the shell. When the pressure-bearing component is compressed, the two sets of sleeve blocks fixed on the base rod on the inner wall of the shell slide to both sides and compress the inclined surface of the trapezoidal block that slides along the inner wall of both sides of the shell. This causes the trapezoidal block to exert a compressive force on the elastic telescopic rod. The frame strip one, which is fixed to the end of the elastic telescopic rod, and the frame strip two, which are fixed to the end of the elastic telescopic rod, compress the sealing rubber strip. This causes the sealing rubber strip to bulge outward under the compression and its own elasticity.

[0006] As a further description of the above technical solution: the abutment component includes a U-shaped block fixed to the inner wall of the front end of the housing, an abutment strip rotatably connected inside the U-shaped block, and both the U-shaped block and the abutment strip are provided with insertion holes, and the U-shaped block and the abutment strip are positioned by inserting a pin into the insertion hole.

[0007] As a further description of the above technical solution: the pressure-bearing component also includes a central block connected to the sleeve block via a movable shaft, and a vertical stop bar is fixed at the front end of the central block.

[0008] As a further description of the above technical solution: the elastic telescopic rod includes a rod sleeve fixed to the trapezoidal block, a sliding rod is slidably installed at the front end of the rod sleeve, a washer is fixed at the front end of the sliding rod, a spring is connected between the washer and the rod sleeve, and the front end of the washer is fixed to the frame strip.

[0009] As a further description of the above technical solution: the trapezoidal block has a sliding protrusion integrally formed on the side near the inner wall of the shell, and the sliding protrusion slides directionally along the groove provided on the inner wall of the shell.

[0010] As a further description of the above technical solution: the first frame strip slides against the inner wall of the housing, and the second frame strip is fixedly connected to the inner wall of the housing.

[0011] The structural components configured with electromagnetic shielding function include a metal shielding plate, which is fixed to the inner wall of the housing.

[0012] In the above technical solution, the structural component and energy meter with electromagnetic shielding function provided by this utility model have the following beneficial effects: 1. The structural components and electricity meter equipped with electromagnetic shielding feature have a sealing rubber strip that protrudes under pressure throughout the installation process. After installation, it can effectively adapt to temperature changes inside the electricity meter. When the temperature inside the electricity meter rises due to operation and the components expand, the sealing rubber strip, with its good elasticity and protruding shape under pressure, fills the gaps that may be caused by the expansion of the components. When the temperature drops and the components contract, the sealing rubber strip can still maintain a sealing state by its own elasticity, avoiding gaps caused by thermal expansion and contraction. It can self-adapt to sealing and ensure the stability of the internal environment of the electricity meter.

[0013] 2. The structure and energy meter equipped with electromagnetic shielding function, when the metal shielding plate is pushed into the energy meter housing, interacts with the pressure-bearing components to generate extrusion pressure, through the orderly transmission of a series of components such as the central block, movable shaft, sleeve block, trapezoidal block, and elastic telescopic rod, not only firmly fixes the metal shielding plate in the energy meter housing, but also simultaneously extrudes the sealing rubber strip, making the overall structure more compact and efficient. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the external structure of an electricity meter provided in an embodiment of the present utility model; Figure 2 A schematic diagram of the structure of the energy meter and the metal shielding plate provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the internal structure of an electricity meter provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the pressure-bearing component structure provided in an embodiment of the present utility model; Figure 5 A schematic diagram of the elastic telescopic rod structure provided in this embodiment of the utility model; Figure 6 Provided for the embodiments of this utility model Figure 3 A magnified structural diagram at point A.

[0016] Explanation of reference numerals in the attached figures: 1. Housing; 2. Sealing rubber strip; 3. Frame strip one; 4. Frame strip two; 5. Abutment assembly; 51. U-shaped block; 52. Abutment strip; 6. Pressure bearing assembly; 61. Base rod; 62. Sleeve block; 63. Trapezoidal block; 64. Elastic telescopic rod; 641. Rod sleeve; 642. Slide rod; 643. Gasket; 644. Spring; 65. Movable shaft; 66. Stop bar; 7. Metal shielding plate. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Please see Figures 1-6This utility model provides a technical solution for an electricity meter: it includes a housing 1, and further includes: a sealing rubber strip 2, disposed between frame strip 3 and frame strip 4 on the inner wall of the middle section of the housing 1; an abutment component 5, disposed on the inner wall of the front end of the housing 1; and a pressure-bearing component 6, disposed in the middle section of the housing 1. When the pressure-bearing component 6 is compressed, two sets of sleeve blocks 62 fixed on the base rod 61 on the inner wall of the housing 1 slide to both sides and compress the inclined surface of the trapezoidal block 63 sliding along the inner walls of both sides of the housing 1, so that the trapezoidal block 63 exerts force on the elastic telescopic rod 64. The compression action, with frame strip 3 fixed to the end of the elastic telescopic rod 64 and frame strip 4, compresses the sealing rubber strip 2, causing the sealing rubber strip 2 to bulge outward under the compression and its own elasticity. When the pressure-bearing component 6 is subjected to external pressure, based on the force transmission, the sleeve block 62 slides on the base rod 61, and uses the inclined plane principle to push the trapezoidal block 63 to move, thereby causing the elastic telescopic rod 64 to push frame strip 3, which, together with frame strip 4, applies pressure to the sealing rubber strip 2, realizing the outward bulging extension of the sealing rubber strip 2.

[0019] It is worth noting that the base rod 61 and the inner wall of the housing 1 are assembled by screwing bolts. In the specific assembly process, an electronic component mounting bracket is first installed in the internal cavity of the electricity meter housing 1. The electronic component mounting bracket is used to install electronic components. When installing the electronic component mounting bracket, screws are passed through the holes on the mounting bracket and screwed into the screw holes of the housing 1 through the corresponding screw holes on the electricity meter housing 1 and the electronic component mounting bracket. The mounting bracket is tightly fixed in the housing by the tightening force of the screws. Subsequently, the base rod 61 and the components connected to it are fixed to the inner wall of the front section of the housing 1 near the opening, and the corresponding electromagnetic shielding components are installed. The positions of the pressure-bearing component 6 and the electronic component mounting bracket inside the energy meter are staggered. That is, the electronic component mounting bracket is fixed to the rear section inside the housing 1, while the pressure-bearing component 6 is fixed to the front section inside the housing. The electronic component mounting bracket is reserved to allow for the deformation of the pressure-bearing component 6, so that when the pressure-bearing component 6 deforms, the stop rod 66 pushes and squeezes backward, and will not collide with or resist the electronic component mounting bracket. That is, the deformation of the pressure-bearing component will not interfere with the electronic component mounting bracket.

[0020] In another embodiment of the present invention, preferably, the abutment component 5 includes a U-shaped block 51 fixed to the inner wall of the front end of the housing 1. An abutment strip 52 is rotatably connected inside the U-shaped block 51. Both the U-shaped block 51 and the abutment strip 52 are provided with insertion holes. The U-shaped block 51 and the abutment strip 52 are positioned by inserting a pin into the insertion holes. The U-shaped block 51 is fixed to the inner wall of the front end of the housing 1 to provide support. The abutment strip 52 can rotate inside the U-shaped block 51. The position of the abutment strip 52 is determined by inserting a pin into the insertion holes of both, thereby limiting the front end contact of the metal shielding plate 7.

[0021] In another embodiment of the present invention, preferably, the pressure-bearing component 6 further includes a central block connected to the sleeve block 62 via a movable shaft 65, and a vertical stop bar 66 is fixed at the front end of the central block; the central block is connected to the sleeve block 62 via the movable shaft 65, and when the pressure-bearing component 6 is subjected to force, the force of the central block is transmitted to the sleeve block 62 via the movable shaft 65 to make it slide, and the vertical stop bar 66 can play a certain role in restricting and guiding the movement of the central block.

[0022] In another embodiment of the present invention, preferably, the elastic telescopic rod 64 includes a rod sleeve 641 fixed to the trapezoidal block 63. A sliding rod 642 is slidably mounted on the front end of the rod sleeve 641. A pad 643 is fixed to the front end of the sliding rod 642. A spring 644 is connected between the pad 643 and the rod sleeve 641, and the front end of the pad 643 is fixed to the frame strip 3. When the trapezoidal block 63 moves, it drives the rod sleeve 641. The rod sleeve 641 pushes the sliding rod 642 to slide inside it and compress the spring 644. The reaction force of the spring 644 is transmitted to the frame strip 3 through the pad 643, thereby pushing the frame strip 3 to move.

[0023] In another embodiment of the present invention, preferably, the trapezoidal block 63 has an integrally formed sliding protrusion on the side near the inner wall of the housing 1, and the sliding protrusion slides directionally along the groove provided on the inner wall of the housing 1; the trapezoidal block 63 slides in the groove on the inner wall of the housing 1 through the integrally formed sliding protrusion, ensuring the stability and directionality of the movement of the trapezoidal block 63, so that it moves along a predetermined path.

[0024] In another embodiment of the present invention, preferably, the first frame strip 3 slides against the inner wall of the housing 1, and the second frame strip 4 is fixedly connected to the inner wall of the housing 1; the first frame strip 3 can slide on the inner wall of the housing 1, and the second frame strip 4 is fixed to the inner wall of the housing 1. The two cooperate to achieve the squeezing action of the sealing rubber strip 2 under the action of the elastic telescopic rod 64.

[0025] The structural component configured with electromagnetic shielding function includes a metal shielding plate 7, which is fixed to the inner wall of the housing 1. The metal shielding plate 7 is installed and fixed to the inner wall of the housing 1 to realize the electromagnetic shielding function of the electricity meter.

[0026] During operation, when the metal shielding plate 7 is installed inside the energy meter, the metal shielding plate 7 is first aligned and pushed into the energy meter housing 1. During this process, the metal shielding plate 7 first interacts with the pressure-bearing component 6, which applies a certain compressive force to the pressure-bearing component 6. After being compressed by the metal shielding plate 7, the central block of the pressure-bearing component 6 is pushed by the force to push the movable shaft 65 connected to it. The movable shaft 65 drives the sleeve block 62 to slide to both sides on the base rod 61. Next, the sliding sleeve 62 presses against the inclined surface of the trapezoidal block 63 that slides along the inner walls of both sides of the housing 1. After being pressed, the trapezoidal block 63 moves towards the elastic telescopic rod 64, thereby exerting a pressing effect on the sleeve 641 of the elastic telescopic rod 64. After the sleeve 641 of the elastic telescopic rod 64 is pressed, the inner slide rod 642 is forced to slide and compress the spring 644. The reverse force of the compressed spring 644 is applied to the pad 643 at the front end of the slide rod 642. Since the pad 643 is fixed to the frame strip 3, it pushes the frame strip 3 to move towards the frame strip 4. The frame strip 3, together with the fixed frame strip 4, presses against the sealing rubber strip 2, causing the sealing rubber strip 2 to bulge outward under the action of compression and its own elasticity. At the same time, the abutting component 5 plays a role. The abutting strip 52 of the abutting component 5 is positioned on the U-shaped block 51 by the pin. During the process of the metal shielding plate 7 being pushed in, the abutting component 5, together with the pressure bearing component 6, clamps and limits the metal shielding plate 7 from front to back, ensuring that the metal shielding plate 7 is stably placed inside the energy meter housing 1. After the entire process is completed, the bulging state of the sealing rubber strip 2 under pressure can effectively adapt to the temperature changes inside the electricity meter. When the temperature inside the electricity meter rises due to operation and the components expand thermally, the sealing rubber strip 2 can fill the gaps that may be caused by the expansion of the components due to its own good elasticity and bulging shape under pressure. When the temperature drops and the components shrink and gaps appear, the sealing rubber strip 2 can still maintain the sealing state by its own elasticity, avoiding the appearance of pores due to thermal expansion and contraction, thereby ensuring the stability and sealing of the internal environment of the electricity meter.

[0027] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An electricity meter, comprising a housing (1), characterized in that, Also includes; A sealing rubber strip (2) is installed between frame strip one (3) and frame strip two (4) on the inner wall of the middle section of the housing (1); The abutment component (5) is disposed on the inner wall of the front end of the housing (1); The pressure-bearing component (6) is located in the middle section of the housing (1). When the pressure-bearing component (6) is compressed, the two sets of sleeve blocks (62) fixed on the base rod (61) on the inner wall of the housing (1) slide to both sides and compress the inclined surface of the trapezoidal block (63) that slides along the inner wall of both sides of the housing (1), so that the trapezoidal block (63) compresses the elastic telescopic rod (64). The frame strip one (3) fixed to the end of the elastic telescopic rod (64) cooperates with the frame strip two (4) to compress the sealing rubber strip (2), so that the sealing rubber strip (2) protrudes and extends outward under the compression and its own elasticity.

2. The electricity meter according to claim 1, characterized in that, The abutment component (5) includes a U-shaped block (51) fixed to the inner wall of the front end of the housing (1). An abutment strip (52) is rotatably connected inside the U-shaped block (51). Both the U-shaped block (51) and the abutment strip (52) are provided with insertion holes, and the U-shaped block (51) and the abutment strip (52) are positioned by inserting a pin into the insertion hole.

3. The electricity meter according to claim 1, characterized in that, The pressure-bearing component (6) also includes a central block connected to the sleeve block (62) via a movable shaft (65), and a vertical stop bar (66) is fixed at the front end of the central block.

4. The electricity meter according to claim 1, characterized in that, The elastic telescopic rod (64) includes a rod sleeve (641) fixed to the trapezoidal block (63). A sliding rod (642) is slidably installed at the front end of the rod sleeve (641). A pad (643) is fixed at the front end of the sliding rod (642). A spring (644) is connected between the pad (643) and the rod sleeve (641). The front end of the pad (643) is fixed to the frame strip (3).

5. The electricity meter according to claim 1, characterized in that, The trapezoidal block (63) has a sliding protrusion integrally formed on the side near the inner wall of the shell (1), and the sliding protrusion slides directionally along the groove provided on the inner wall of the shell (1).

6. The electricity meter according to claim 4, characterized in that, The first frame strip (3) slides against the inner wall of the shell (1), and the second frame strip (4) is fixedly connected to the inner wall of the shell (1).

7. A structural component configured with electromagnetic shielding function, characterized in that, The energy meter applicable to any one of claims 1-6 includes a metal shielding plate (7) fixed to the inner wall of the housing (1).

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