CN204759266U - Novel keyboard knob of converter - Google Patents

Abstract

The utility model discloses a novel keyboard knob of a frequency converter, which relates to the technical field of frequency converters. It includes keyboard knobs, sawtooth structures, pits and raised strips. There are sawtooth structures on the outer peripheral edge of the keyboard knobs. The front of the keyboard knobs is evenly divided into several pits. Strip. Its structural design is reasonable and novel, and the rotation operation of the knob can be completed normally with only one finger. At the same time, the traditional operation method of pinching the knob wall with the thumb and forefinger is retained, and the step of aiming at a certain point is canceled to reduce the pressing force. And the operation rotation angle is not limited, and it can be rotated at any angle in the positive and negative directions.

Description

A New Type of Keyboard Knob for Frequency Converter

Technical field:

The utility model relates to a novel keyboard knob of a frequency converter, which belongs to the technical field of frequency converters.

Background technique:

The knob structure of the frequency converter on the market is generally a hat structure, with a tooth-shaped convex-concave structure around it, which increases the operating friction and improves the user experience. However, this kind of knob relies on the operator's index finger and thumb to pinch the knob to rotate. Secondly, the rotation angle has certain restrictions. Generally, the angle range of one rotation is less than 60 degrees. Large-angle rotation requires multiple operations to complete. . And because the height of the knob cap is generally limited, it will be made relatively short, so the operating experience is not very ideal from the perspective of ergonomics. In order to solve the above operating experience problems, a large knob has appeared on the market in recent years. The front of the large knob is designed with a pot bottom-shaped pit. You only need to press the front pit of the knob directly with your thumb. The friction force of the thumb pushes the knob to rotate, but because the surface of the knob is smooth and the pit is small, there is only one pit. Every time you operate, you must align your thumb with the pit and press hard at the same time to operate. not good.

Invention content:

In view of the above problems, the technical problem to be solved by the utility model is to provide a new type of keyboard knob for a frequency converter.

The new keyboard knob of the frequency converter of the utility model includes a keyboard knob, a sawtooth structure, pits and raised strips, and a sawtooth structure is distributed on the outer peripheral edge of the keyboard knob, and the front of the keyboard knob is evenly divided into several pits. A raised strip is arranged between two pits.

As a preference, the pit is designed as a steep wall, which can increase the coefficient of frictional resistance, and the operator only needs to press lightly in any pit of the knob to easily drive the knob to rotate without slipping , the knob rotation is fully synchronized with the finger.

The beneficial effects of the utility model: it can overcome the drawbacks of the prior art, the structure design is reasonable and novel, the rotation operation of the knob can be completed normally with only one finger, and the traditional operation method of pinching the knob wall with the thumb and forefinger is retained, canceling The operation requires the step of aiming at a certain point, reducing the pressing force, and the operation rotation angle is not limited, and can be rotated at any angle in the positive and negative directions.

Description of drawings:

For ease of illustration, the utility model is described in detail by the following specific implementation and accompanying drawings.

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic diagram of the three-dimensional structure of the utility model.

1-keyboard knob; 2-serrated structure; 3-dimple; 4-raised bar.

Detailed ways:

As shown in Figure 1-2, this specific embodiment adopts the following technical scheme: it includes a keyboard knob 1, a sawtooth structure 2, a pit 3 and a raised strip 4, and the outer peripheral edge of the keyboard knob 1 is distributed with a sawtooth structure 2. The front of the keyboard knob 1 is divided into several pits 3 equally, and a raised bar 4 is arranged between two pits 3 .

As a preference, the pit 3 is designed as a steep wall digging pit, which can increase the coefficient of frictional resistance, and the operator only needs to press lightly in any pit 3 of the knob to easily drive the knob to rotate without appearing The phenomenon of slipping, the knob rotation is completely synchronized with the fingers.

When using this specific embodiment, the operator can use the traditional operation method to pinch the sawtooth structure 2 of the knob with the index finger and thumb to rotate, or the operator can operate at any position on the front of the keyboard knob, and press any finger In any pit 3, the keyboard knob can be rotated at any angle in the forward and reverse directions.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (2)

1. A new type of keyboard knob for an inverter, characterized in that it includes a keyboard knob (1), a sawtooth structure (2), a pit (3) and a raised strip (4), and the outer side of the keyboard knob (1) Serrated structures (2) are distributed on the peripheral edge, the front of the keyboard knob (1) is equally divided into several pits (3), and a raised strip (4) is arranged between two pits (3). 2. A new type of keyboard knob for a frequency converter according to claim 1, characterized in that: said pit (3) is a steep wall digging design.