Novel guide-rail electric energy meter structure

Abstract

The invention relates to a novel guide-rail electric energy meter structure comprising a cover case and a terminal base. The cover case consists of a left cover case and a right cover case. The structure is characterized in that a touch switch is arranged at the side of the cover case; a first welding rib is arranged on the left cover case; a welding slot for ultrasonic bonding with the first welding rib cooperatively is formed in the right cover case; and the first welding rib and the welding slot cooperate with each other for ultrasonic bonding to connect the left cover case with the right cover case. Threaded holes are formed in the tops of the insides of the left cover case and the right cover case. A first connection part is arranged on the inner side wall of the left cover case; a second connection part is arranged at the position, corresponding to that of the first connection part, of the right cover case; and the first connection part cooperate with the second connection part to realize buckled connection of the left cover case and the right cover case. Compared with the prior art, the novel structure has the following advantages: the structure is simple and reliable; the structure is manufactured conveniently with low costs; one same kind of cover case can be applied to electric energy meters with two kinds of assembling modes, so that the upper path and the lower pathare able to use one same kind of relay.

Description

technical field [0001] The invention relates to an electric energy meter structure, in particular to a novel rail electric energy meter structure. Background technique [0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter, and refers to an instrument for measuring various electrical quantities. [0003] There are mainly two ways to assemble the left cover and the right cover of the electric energy meter at present, one is to adopt the method of screw fixing, and the other is to adopt the method of ultrasonic welding. Because these two methods have different requirements on the structure of the casing, at present, the casing is usually designed into two types of casings with different shapes according to the special requirements of the two methods. The existing technology cannot be compatible with the two casings. The reason is that : This assembly method of ultrasonic weldi...

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Problems solved by technology

Because these two methods have different requirements on the structure of the casing, at present, the casing is usually designed into two types of casings with different shapes according to the special requirements of the two methods. The existing technology cannot be compatible with the two casings. The reason is that : This assembly method of ultrasonic welding needs to increase the welding rib with a thickness of 0.6mm on the cover, and after adding the welding rib on the non-ultrasonic welded (i.e. screw fixed) cover, it will cause the thickness after assembly to increase by 0.6mm, resulting in A series of problems, such as the increase of the gap, the change of the height of the button and the height of the bottom case, etc., so that the dust and water in the watt-hour meter and the button of the watt-hour meter do not work. The welding ribs are directly arranged on the bottom edge of the casing, so that the entire casing is affected during ultrasonic welding, thereby affecting the parts inside the casing. Two kinds of molds are opened, which increases the production cost of the enterprise, reduces the work efficiency, and is inconvenient for production and stocking; and the detection of the opening end cover of the electric energy meter adopts the traditional tact switch. At present, there are two ways to set the tact switch, one One is to place the tact switch on its side and weld it to the PCB; the other is to fix the tact switch to the shell and connect it to the PCB through wires. This setting may cause the shell to leak , and make the PCB more complicated; in addition, the current electric energy meter can only be compatible with two groups of functions, and the upper and lower layers of relays need to use two different pin relays due to structural factors

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