CN203037201U - Displacement sensor - Google Patents

Abstract

The utility model relates to the technical field of displacement sensors, in particular to a high-precision displacement sensor, which includes a fixed seat that can be installed on the base of a circuit breaker, an epoxy plate arranged on the fixed seat, a shell, and a shell that matches the shell. The upper cover, the epoxy board is located between the fixed seat and the housing, a resistor body and a brush holder are installed in the housing, and a brush is provided on the brush holder, and the gap between the housing and the resistor body is A rubber strip is provided to reinforce the resistor body, and the resistor body is connected with a connecting wire having a shielding effect. The utility model has a simple structure, can measure the signal of the circuit breaker more accurately, has high reliability, and shields the interference of other signals, thereby increasing the safety of the circuit breaker and improving the working efficiency.

Description

Motion detector

technical field

The utility model relates to the technical field of displacement sensors, in particular to a high-precision displacement sensor.

Background technique

The displacement sensor is a sensor designed on the basis of absorbing advanced technology at home and abroad to measure the displacement of the moving contact of the circuit breaker. It can be used on various circuit breakers such as VS1 and VL1.

The currently used displacement sensor is not accurate in measuring the signal of the circuit breaker, and the reliability is poor, which will easily affect the work of the circuit breaker and reduce the work efficiency.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art and provide a high-precision displacement sensor.

The technical solution adopted by the utility model to solve the technical problem is: a displacement sensor, including a fixed seat that can be installed on the base of the circuit breaker, an epoxy plate arranged on the fixed seat, a housing and a matching housing. The upper cover, the epoxy board is located between the fixed seat and the housing, a resistor body and a brush holder are installed in the housing, and a brush is provided on the brush holder, and a brush is arranged between the housing and the resistor body. There are rubber strips used to reinforce the resistor body, and the connecting wire with shielding effect is connected to the resistor body.

The manufacturing material of the shell is aluminum profile.

The fixing seat, the epoxy board and the housing are fixedly connected by screws.

The beneficial effects of the utility model are: the utility model has a simple structure, can measure the signal of the circuit breaker more accurately, has high reliability, and shields the interference of other signals, increases the safety of the circuit breaker, and improves the work efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

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

Fig. 2 is a right side view of Fig. 1 .

In the figure: 1. Fixed seat, 2. Epoxy board, 3. Shell, 4. Resistor, 5. Brush holder, 6. Brush, 7. Rubber strip, 8. Connecting wire.

Detailed ways

The utility model is described further in conjunction with accompanying drawing now. These drawings are simplified schematic diagrams only to illustrate the basic structure of the utility model in a schematic way, so they only show the configurations related to the utility model.

The displacement sensor shown in Figure 1 includes a fixed seat 1 that can be installed on the base of the circuit breaker, an epoxy plate 2 arranged on the fixed seat 1, a housing 3 and an upper cover that matches the housing 3, epoxy The board 2 is located between the fixed seat 1 and the housing 2, and the resistor body 4 and the brush holder 5 are installed in the housing 3. The brush holder 5 is provided with a brush 6, and the housing 3 and the resistor body 4 are arranged There are rubber strips 7 for reinforcing the resistor body 4. The resistor body 4 is connected with a shielding connection wire 8. The shell 3 is made of aluminum profiles. The fixing seat 1, the epoxy plate 2 and the shell 3 are fixed by screws. connect.

There is a connection hole on the brush holder 5, and a chute hole is opened on the position corresponding to the connection hole on the housing 3. The insulating pull rod at the lower end of the circuit breaker and the driving arm are connected through the connection pin shaft, and the extension end of the connection pin shaft Through the chute hole, it is connected with the brush holder 5 in the displacement sensor. When the transmission crank arm drives the insulating pull rod to open and close up and down, the brush holder 5 also drives the brush 6 to move up and down, because the brush 6 and the resistor body 4 contact with each other, so the data of the resistor body 4 will change, and the data is transmitted to the intelligent circuit breaker monitoring module through the connecting line. After the chip analysis and processing inside the intelligent circuit breaker monitoring module, the measured displacement curve is transmitted to the external display device The staff can judge the action process of the circuit breaker contacts according to the displacement curve.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model. Equivalent changes or modifications made by the spirit of the present utility model shall be covered within the protection scope of the present utility model.

Claims (3)

1. displacement transducer, it is characterized in that: comprise the holder (1) that can be installed on the isolating switch base, be arranged on the epoxy plate (2) on the holder (1), housing (3) and the loam cake that is complementary with housing (3), described epoxy plate (2) is positioned between holder (1) and the housing (3), resistive element (4) and brushgear housing (5) are installed in housing (3), brushgear housing (5) is provided with brush (6), be provided with between described housing (3) and the resistive element (4) for the rubber strip (7) of reinforcing resistive element (4), be connected with the connecting line (8) with shielding action on the resistive element (4).

2. displacement transducer according to claim 1, it is characterized in that: the making material of described housing (3) is aluminium section bar.

3. displacement transducer according to claim 1, it is characterized in that: described holder (1), epoxy plate (2) are fixedlyed connected by screw with housing (3).

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