Three-phase electric energy meter
A three-phase electric energy meter and cover technology, which is applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of safety performance impact, safety performance reduction, and inconvenient use, so as to reduce manufacturing costs and increase service life , design reasonable effect
Inactive Publication Date: 2012-04-25
NINGBO FEILING ELECTRIC
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Problems solved by technology
Due to the unreasonable design in the concave space of the existing base, the volume of the electric meter case is too large for the placement of the electric meter core, the control board, and the power board, and the space required for installation also increases accordingly, so it is extremely inconvenient to use
In addition, due to the unreasonable fixing of the main board and the power board, the safety performance of the product is reduced, and the inlet and outlet wire holes of the base are arranged on the end side of the base, which also has a certain impact on the safety performance of the product.
Method used
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Embodiment Construction
[0024] Such as Figure 1-8 As shown, the present invention includes a bottom case 1, a cover body 3 matched with the bottom case 1, and a tail cap 5 connected with the bottom case 1 and the cover body 3, and the cover body 3 is provided with a button 2 and an indicator light 9, so that The end of the cover 3 is provided with a hook 11, and the position corresponding to the hook 11 on the bottom shell 1 is provided with a clip 12 matched with the hook 11; the side of the cover 3 is hinged with a rocker 6. The hinge shaft is composed of a pin 13 fixed on the cover body 3 and a spring 14 connecting the pin 13 and the rocker plate 6; the lower end of the bottom case 1 is provided with a terminal 16 composed of a terminal joint 15, and the tail A gap is formed between the rear end of the cover 5 and the bottom case 1 for the wires connected to the terminals 5 to enter and exit. The front end of the tail cover 5 is fixed on the bottom shell 1 through the slot 17 formed by the coope...
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The invention relates to a three-phase electric energy meter. The electric energy meter comprises: a back shell, a cover body which is cooperated with the back shell and a tail cover which is connected with the back shell and the cover body. The cover body is provided with a button and an indicating lamp. An end of the cover body is provided with a hook. A card component, which is cooperated with the hook, is arranged on a position corresponding to the hook of the back shell. A lateral part of the cover body is hinged with a rocker panel. A joint shaft is formed by a pin fixed on the cover body and a spring which connects the pin and the rocker panel. A lower end of the back shell is provided with a connection terminal formed by a terminal joint. A gap, where a lead connected with the connection terminal can be passed in and out, is formed between the rear end of the tail cover and the back shell. In the invention, a design is reasonable; a card slot connection mode, a card buckle connection mode and the like are used to reduce costs and a service life can be prolonged.
Description
technical field [0001] The invention relates to a three-phase electric energy meter. Background technique [0002] The layout in the concave space of the existing bottom shell is not reasonable enough. In order to install the electric meter core, the control board and the power board, the volume of the electric meter case is too large. Since the main board and the power board are fixed, the incoming and outgoing wires on the base are arranged on the end side of the base. , which has a certain impact on the safety performance of the product. [0003] In terms of the cooperation between the cover and the bottom shell, the existing design is to open or close from the top to the bottom. This design will seriously shorten the service life, and the safety performance will be greatly reduced, and the buckle is often caused by certain factors. broken and the product is scrapped. [0004] The opening angle of the rocking plate of the usual three-phase electric energy meter is limit...
Claims
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IPC IPC(8): G01R11/00G01R11/02G01R11/04
Inventor 章仁法
Owner NINGBO FEILING ELECTRIC