An electric four-way valve

An electric four-way valve and electric drive unit technology, applied in the field of reversing valves, can solve the problems of sensor and coil maintenance, four-way valve wear, fluid impurity stuck, etc., achieve strong anti-impurity ability, increase service life, and facilitate maintenance Effect

Active Publication Date: 2017-06-09
贾培育
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an electric four-way valve, which mainly solves the problems of the existing four-way valve wear, fluid impurities stuck, and sensor and coil maintenance problems

Method used

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  • An electric four-way valve
  • An electric four-way valve
  • An electric four-way valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, see figure 1 , 2b , 5, processed into a cylinder 3, the upper end of the cylinder 3 is installed with an isolation cover 1, and the middle of the isolation cover 1 protrudes to form a shielding sleeve, and the electric drive unit 16 coils are installed outside the shielding sleeve; the lower end of the cylinder 3 is equipped with a lower end cover 2 , the lower end cover 2, the cylinder body 3 and the isolation cover 1 form a closed structure; four connecting pipes 15 are installed on the lower side wall of the cylinder body 3, and the valve core 8 is installed at the connecting pipe in the cylinder body 3, and the outer surface of the valve core 8 is processed with grooves , the spool 8 is a "I"-shaped structure with upper and lower heads, and there are upper and lower shafts. The upper cover 6 and the lower cover 7 are respectively installed on the upper and lower sides of the spool 8. There are holes in the center of the upper cover 6 and the lower cover 7...

Embodiment 2

[0028] Example 2, see Image 6 , the same as embodiment 1, the difference is that the inner wall of the cylinder body 3 and the valve core 8 are processed with a pit; , the bearing 12 inner hole is connected with the upper and lower outlet shafts of the spool 8, the present invention has bearing support, small frictional resistance, flexible rotation, and is suitable for adopting on the large diameter four-way valve.

Embodiment 3

[0029] Example 3, see Figure 2b , 7 , the same as embodiment 1, the difference is that the outer surface of the valve core 8 is processed with grooves; there is a through hole in the middle of the isolation cover 1, and the terminal board 13 is installed at the through hole, and the electric drive unit 16 is installed in the cylinder body, and the electric drive unit 16. The coil leads are connected to the lower end of the terminal board, and the upper end of the terminal board is led to the junction box 14. This example reduces the production difficulty of the electric drive unit, thereby reducing the cost.

[0030] An electric four-way valve according to the present invention, such as in an air conditioner application example, the four-way valve is externally connected to a controller. When the circuit is connected, if the air conditioner needs to be cooled, the controller first judges whether the sensor has a cooling in place signal. , if there is an in-position signal, t...

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Abstract

The invention discloses an electric four-way valve, which includes a cylinder body (3), an isolation cover (1) and a lower end cover (2), and four connecting pipes (15) are arranged on the lower side wall, and The spool (8) is characterized in that the outer surface of the spool (8) has pits or holes or grooves or reticular lines, and the spool (8) is provided with upper and lower retaining covers (6, 7); ) is equipped with a power support plate (5) in the middle, and the drive assembly (4) is installed on the power support plate (5), and the electric drive unit (16) is installed on the drive assembly (4); The output shaft of the assembly (4) is connected; the sensor plate (9) is set on the lower output shaft of the spool (8), and the magnetic block (10) is set on the sensor plate (9); the sensor is installed in the blind hole of the lower end cover (2) (11); a junction box (14) is provided on the outer wall of the cylinder (3), and the electric drive unit (16) coil lead wire and the sensor (11) lead wire are introduced into the junction box (14); its structure has good airtight performance and is easy to maintain Convenient, strong anti-impurity ability.

Description

[0001] Technical field: [0002] The invention relates to the technical field of reversing valves, in particular to an electric four-way valve, which is used for reversing fluids, and is mainly used for switching fluids in air conditioning, chemical industry, oil exploitation and the like. [0003] Background technique: [0004] The currently used four-way valve uses a linear movement of the spool in the valve cavity to switch the direction of fluid flow. Its structure is complex and the processing technology is cumbersome. Moreover, with the increase of the use time and frequency, the spool wears a lot and becomes stuck. Chinese patent (patent number: 0126889.4, 03215341.4) conical center rotary four-way valve and multi-way valve, although the wear of the valve core has been overcome, the pressure of each pipeline of the four-way valve is not equal, causing the valve core to be stressed in the valve cavity. Lateral forces, resulting in varying degrees of spool wear, degrade pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K11/085F16K5/08F16K31/02F16K37/00
CPCF16K11/085F16K31/02F16K37/0025
Inventor 贾培育
Owner 贾培育
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