Pointer instrument

Abstract

A pointer instrument comprises a casing, a pointer in the casing, a circuit board in the casing and a motor mounted on the circuit board and used to driving a pointer. The pointer instrument is characterized in that the pointer comprises a lightproof wrapping layer, an indication part indicating scale of the instrument and a light input concave surface through which light of a light source on theinstrument is input to a pointer body; the surface of a backward meter panel of the indication part is provided with a narrow groove which extends along the length direction of the indication part; the lightproof wrapping layer wraps all surfaces except the light input concave surface and the narrow groove of the pointer body; and the pointer is sprayed with an antirust agent.

Description

technical field [0001] The invention relates to the field of meters, in particular, the invention relates to a pointer meter. Background technique [0002] Meter is a product widely used in all walks of life in modern society. The function of the instrument is to display various parameters, such as temperature, speed, remaining fuel of the vehicle and so on. Traditional instruments are generally equipped with pointers, which are driven by a motor installed on the instrument to make the pointers point to different scales or numbers, so as to display the specific values ​​of each parameter. In addition, in order to observe the pointer conveniently in places with poor light or at night, a light source is usually installed on the meter, and the light emitted by the light source is injected into the pointer, and then emitted from the part of the pointer that needs to be observed, thereby enhancing the accuracy of the pointer and the meter. visibility. [0003] A kind of pointe...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned pointer achieves the effect of conveniently observing the pointer in places with poor light or at night, it is composed of four parts, the structure is complex, and the cost is high. The processing and assembly of the parts requires a lot of manpower and material resources.

Moreover, since the pointer is composed of four parts, the overall weight is relatively heavy, so the power of the motor that drives the pointer to rotate is also relatively large.

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