Watchcase of three-phase multifunctional electric energy meter

Abstract

The utility model is suitable for the technical field of electric energy meter cases, and provides a three-phase multifunctional electric energy meter case comprising an electric energy meter lower case; the electric energy meter upper meter shell is arranged above the electric energy meter lower meter shell; the circuit board mounting column is integrally formed at the bottom in the lower meter shell of the electric energy meter; the supporting plate ring is integrally formed on the outer side wall of the circuit board mounting column; the through groove is formed in the center of the top of the circuit board mounting column; the transverse plate is adhered to the central position of the inner wall of one side of the through groove through an adhesive; the sliding groove is formed in the position, close to the lower portion of the transverse plate, of the inner wall of one side of the through groove. The moving plate is arranged in the through groove; through the movable plate which can move in the circuit board mounting column, the clamping block can be clamped on the circuit board only by pressing downwards in a horizontal state when the circuit board is mounted, the mounting operation is simple and convenient, traditional screws and screwdrivers are not needed, and the mounting operation can be realized through one-time pressing operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of the meter housing of an electric energy meter, and particularly relates to a housing of a three-phase multi-functional electric energy meter. Background Art

[0002] The three-phase multi-functional electric energy meter is designed for the power monitoring requirements of power systems, industrial and mining enterprises, public facilities, and intelligent buildings. It can measure all common power parameters, such as three-phase current, voltage, active and reactive power, electric energy, harmonics, etc.

[0003] There is usually a circuit board in the housing of the three-phase multi-functional electric energy meter, and the overall intelligent control of the electric energy meter is controlled by the circuit board. However, the existing fixing method of the circuit board is to fix the circuit board and the base through bolts. However, the method of fastening with bolts is extremely cumbersome during the connection and fixing process, and an electric screwdriver is required to form the fastening, resulting in low efficiency during the assembly process.

[0004] Therefore, a housing of a three-phase multi-functional electric energy meter is proposed. Content of the Utility Model

[0005] The utility model provides a housing of a three-phase multi-functional electric energy meter, aiming to solve the above problems.

[0006] The utility model is realized as follows: a housing of a three-phase multi-functional electric energy meter includes: a lower housing of the electric energy meter; an upper housing of the electric energy meter provided at a position above the lower housing of the electric energy meter; a circuit board mounting post integrally formed at the inner bottom of the lower housing of the electric energy meter; a support plate ring integrally formed on the outer side wall of the circuit board mounting post; a through groove opened at the central position of the top of the circuit board mounting post; a cross plate adhesively connected to the central position of the inner wall on one side of the through groove; a sliding groove opened at a position close to the lower side of the cross plate on the inner wall on one side of the through groove; a moving plate provided in the through groove; a sliding block integrally formed on the outer side wall of the moving plate; a first spring provided between the outer side wall of the moving plate and the inner side wall of the through groove; a clamping block welded to the top of the moving plate; a first wedge block welded to the bottom of the moving plate; a pressing rod penetrating through the central position of the top of the cross plate; a second wedge block welded to the bottom end of the pressing rod; a second spring provided between the bottom of the second wedge block and the inner bottom of the through groove.

[0007] Preferably, there are four circuit board mounting posts in total, and the four circuit board mounting posts are symmetrically arranged at the inner bottom of the lower housing of the electric energy meter.

[0008] Preferably, the cross section of the through groove is a rectangular structure.

[0009] Preferably, the sliding block is located inside the sliding groove, and the sliding block is slidably connected to the sliding groove.

[0010] Preferably, the distance between the bottom of the clamping block and the top of the circuit board mounting post is the same as the thickness of the circuit board.

[0011] Preferably, the cross-section of the clamping block is a right-angled triangle structure.

[0012] Preferably, the bottom inclined surface of the first wedge block and the top inclined surface of the second wedge block are matched and fitted.

[0013] Preferably, two moving plates are provided, and the two moving plates are symmetrically arranged inside the through groove.

[0014] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0015] Through the movable moving plates inside the circuit board mounting post, when installing the circuit board, it is only necessary to press down the circuit board in a horizontal state to make the clamping block clamp on the circuit board. The installation operation is simple and convenient, without the need for traditional screws and screwdrivers. One pressing operation can achieve it. By pressing down the pressing rod, the two moving plates can move towards each other and approach. Just lift the circuit board upward to separate the circuit board from the circuit board mounting post. The circuit board disassembly operation is also simple and convenient, greatly simplifying the disassembly and assembly operation of the circuit board in the three-phase multifunctional electric energy meter case. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the circuit board mounting structure of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the circuit board mounting post of the present utility model;

[0019] Figure 4 is a schematic diagram of the cooperation between the first wedge block and the second wedge block of the present utility model.

[0020] In the figure: 1, lower case of the electric energy meter; 2, upper case of the electric energy meter; 3, circuit board mounting post; 4, support plate ring; 5, through groove; 6, cross plate; 7, sliding groove; 8, moving plate; 9, sliding block; 10, first spring; 11, clamping block; 12, first wedge block; 13, pressing rod; 14, second wedge block; 15, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] An embodiment of the present utility model provides a meter housing of a three-phase multifunctional electric energy meter, as Figures 1-4 shown, including a lower meter housing 1 of the electric energy meter. At the upper position of the lower meter housing 1 of the electric energy meter, an upper meter housing 2 of the electric energy meter is fixedly connected by bolts. And a circuit board mounting post 3 is integrally formed at the inner bottom of the lower meter housing 1 of the electric energy meter. There are four circuit board mounting posts 3 in total, and the four circuit board mounting posts 3 are symmetrically arranged at the inner bottom of the lower meter housing 1 of the electric energy meter. A support plate ring 4 is integrally formed at the upper position of the outer side wall of the circuit board mounting post 3. And a through groove 5 is opened at the central position of the top of the circuit board mounting post 3. The cross section of the through groove 5 is a rectangular structure. A cross plate 6 is adhesively fixed at the central position of one inner wall of the through groove 5. And a sliding groove 7 is opened at the lower position close to the cross plate 6 on one inner wall of the through groove 5. A moving plate 8 is arranged inside the through groove 5. There are two moving plates 8 in total, and the two moving plates 8 are symmetrically arranged inside the through groove 5. A sliding block 9 is integrally formed on one outer side wall of the moving plate 8. A first spring 10 is arranged between the outer side wall of the moving plate 8 adjacent to the sliding block 9 and one inner wall of the through groove 5. A clamping block 11 is welded to the top of the moving plate 8. The distance between the bottom of the clamping block 11 and the top of the circuit board mounting post 3 is the same as the thickness of the circuit board. A first wedge block 12 is welded to the bottom of the moving plate 8. A pressure rod 13 passes through the central position of the top of the cross plate 6. A second wedge block 14 is welded to the bottom end of the pressure rod 13. A second spring 15 is arranged between the bottom of the second wedge block 14 and the inner bottom of the through groove 5.

[0024] It should be noted that, since the circuit board in the case of the existing three-phase multi-function electric energy meter is fixed to the base by bolts, but the bolt tightening method is extremely cumbersome in the connection and fixing process, and an electric screwdriver needs to be used to tighten, which makes the assembly process inefficient. In this embodiment, the movable plate 8 inside the circuit board mounting column 3 can make it possible to install the circuit board by simply keeping it in a horizontal state and pressing down to achieve the card block 11 being stuck on the circuit board. The installation operation is simple and convenient, and no traditional screws and screwdrivers are required. It can be achieved by one downward pressing operation. By pressing down the pressure rod 13, the two movable plates 8 can be moved toward each other and closer. The circuit board can be separated from the circuit board mounting column 3 by simply lifting the circuit board upward. The circuit board disassembly operation is also simple and convenient, which greatly simplifies the disassembly and assembly operation of the circuit board in the case of the three-phase multi-function electric energy meter.

[0025] Specifically, in the present embodiment, the present scheme mainly comprises the circuit board mounting column 3. When in use, the original screw mounting hole of the circuit board (not shown in the figure) is aligned with the circuit board mounting column 3. The circuit board is horizontally aligned and then pressed downward. After the screw mounting hole on the circuit board contacts the card block 11, the card block 11 and the bottom movable plate 8 move toward the cross plate 6 together under the limiting guide sliding of the slide block 9 by the slide groove 7. The first spring 10 is stretched by force. As the circuit board continues to be pressed downward, the screw mounting hole on the circuit board passes through the card block 11. After the extrusion force on the card block 11 disappears, under the action of the rebound reset force of the first spring 10, the movable plate 8 drives the card block 11 to reset. A part of the card block 11 extends out of the screw hole on the circuit board, and a part of the card block 11 is stuck in At the top of the circuit board, the support ring 4 supports the circuit board to complete the installation of the circuit board. The installation of the circuit board is simple and convenient. You only need to press the circuit board downward. When the circuit board needs to be disassembled, press the pressure rod 13 downward. Under the limit guidance of the cross plate 6, the pressure rod 13 drives the second wedge block 14 to move downward. Through the matching fit between the second wedge block 14 and the first wedge block 12, when the second wedge block 14 moves downward, the second spring 15 is compressed, and the extrusion force on the first wedge block 12 gradually decreases, and the extrusion force on the first spring 10 decreases. The first spring 10 pushes the movable plate 8 to move, and the movable plate 8 moves closer to the pressure rod 13. The block 11 on the top of the movable plate 8 is stored in the inner side of the screw mounting hole of the circuit board, and the circuit board can be moved upward and taken out.

[0026] In a further preferred embodiment of the present invention, Figures 2-4 As shown, the slider 9 is located inside the slide groove 7, and the slider 9 and the slide groove 7 are slidably connected.

[0027] In this embodiment, the sliding connection is used to ensure the stability of the movement of the slider 9 in the slide groove 7, and the slide groove 7 is also used to limit the sliding of the slider 9, so that the moving plate 8 can only move in a straight line.

[0028] In a further preferred embodiment of the present utility model, as Figure 2 and Figure 4 shown, the cross-section of the clamping block 11 is a right triangle structure.

[0029] In this embodiment, the top right-angled side of the clamping block 11 with a right triangle structure can be clamped on the circuit board through the clamping block 11, realizing the fixation of the circuit board, and the inclined side of the clamping block 11 can also realize the guiding during the downward movement of the circuit board.

[0030] In a further preferred embodiment of the present utility model, as Figure 4 shown, the bottom inclined surface of the first wedge block 12 and the top inclined surface of the second wedge block 14 are matched and fitted.

[0031] In this embodiment, through the matching first wedge block 12 and second wedge block 14, when the second wedge block 14 moves downward, the extrusion force received by the first wedge block 12 gradually disappears, and then the two first wedge blocks 12 move towards each other and approach.

[0032] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be in other sequences or carried out simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0033] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the above-mentioned unit division can have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0034] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present invention according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. The case of a three-phase multifunctional electric energy meter, characterized in that, Including: The lower case (1) of the electricity meter; The upper case (2) of the electricity meter disposed above the lower case (1) of the electricity meter; And The circuit board mounting posts (3) integrally formed at the inner bottom of the lower case (1) of the electricity meter; The support plate ring (4) integrally formed on the outer sidewall of the circuit board mounting post (3); and The through groove (5) opened at the central position of the top of the circuit board mounting post (3); The cross plate (6) adhesively connected to the central position of one inner wall of the through groove (5) by an adhesive; and The sliding groove (7) opened at a position near the lower part of the cross plate (6) on one inner wall of the through groove (5); The moving plate (8) disposed inside the through groove (5); The slider (9) integrally formed on the outer sidewall of the moving plate (8); and The first spring (10) disposed between the outer sidewall of the moving plate (8) and the inner sidewall of the through groove (5); The clamping block (11) welded to the top of the moving plate (8); and The first wedge block (12) welded to the bottom of the moving plate (8); The pressing rod (13) passing through the central position of the top of the cross plate (6); The second wedge block (14) welded to the bottom end of the pressing rod (13); The second spring (15) disposed between the bottom of the second wedge block (14) and the inner bottom of the through groove (5).

2. The casing of a three-phase multifunctional watt-hour meter according to claim 1, characterized in that, There are four circuit board mounting posts (3) in total, and the four circuit board mounting posts (3) are symmetrically arranged at the inner bottom of the lower case (1) of the electricity meter.

3. The case of a three-phase multi-functional electricity meter according to claim 1, characterized in that, The cross section of the through groove (5) is a rectangular structure.

4. The casing of a three-phase multifunctional electricity meter according to claim 1, characterized in that, The slider (9) is located inside the sliding groove (7), and the slider (9) is slidably connected to the sliding groove (7).

5. The case of a three-phase multifunctional watt-hour meter according to claim 1, characterized in that, The distance between the bottom of the clamping block (11) and the top of the circuit board mounting post (3) is the same as the thickness of the circuit board.

6. The housing of a three-phase multi-functional watt-hour meter according to claim 1, characterized in that, The cross section of the clamping block (11) is a right triangle structure.

7. The case of a three-phase multifunctional watt-hour meter according to claim 1, characterized in that, The bottom inclined surface of the first wedge block (12) is matched and fitted with the top inclined surface of the second wedge block (14).

8. The case of a three-phase multi-functional electric energy meter according to claim 1, characterized in that, There are two moving plates (8) in total, and the two moving plates (8) are symmetrically arranged inside the through groove (5).

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