TWI539104B - High efficiency solenoid valve - Google Patents

Description

High efficiency solenoid valve

The invention relates to a solenoid valve, in particular to a high-performance solenoid valve which improves the stability of operation and increases the service life.

Modern people's hygiene requirements for public places are increasing. Therefore, existing public toilets are equipped with non-contact automatic flushing devices. For example, the sink is equipped with an infrared sensor-type faucet, and the urinal is also changed to an inductive automatic flusher. The utility model reduces the problem that the majority of the users contact the faucet or the flush switch to cause the spread of the bacteria. The automatic flushing device mainly comprises a human body sensor and a solenoid valve, and the human body sensor detects the human body by using the signal emitted by the infrared light to determine Whether a person or both hands are close, the solenoid valve is provided with a bobbin and a valve on a valve body, the bobbin is provided with an electromagnetic coil, a magnetic conductive block and a core, the valve has a water inlet and a water inlet The water outlet pipe is formed with a crater, and the iron core is provided with a water stop at one end of the crater. The water inlet is connected to a water pipe connected to a faucet, a urinal or a water discharge device, and the electromagnetic valve is a human body. The sensor controls the signal, and the electromagnetic coil generates a magnetic field, and the magnetic field passes through the magnetic block to change the volcano Opening and closing the water flow, and so the water pipe accessible by the inlet to the outlet from the faucet toward the outflow or the urinal.

The structure of the iron core in the bobbin of the existing solenoid valve and the lower metal plate of the valve body are all extended upwards, thereby reducing the winding space of the electromagnetic coil of the bobbin, thereby reducing the ability of the electromagnetic coil to drive the iron core, and the existing winding The wall of the bobbin is located above the crater of the valve and wastes the space around the crater and affects the magnetic circuit when the core is actuated. In addition, the rubber will have a compression amount, the higher Under water pressure, the greater the pressure on the rubber, the greater the amount of compression, resulting in a problem of increased gap and magnetoresistance between the core and the magnetic block and reduced rubber life.

In addition, the bobbin and the valve of the existing solenoid valve are separately manufactured and assembled, there is a joint error in the process, and the distance between the core and the magnetic block needs to be adjusted, and the core gap cannot be controlled at a fixed value, resulting in the existing solenoid valve. The problem of unstable driving, increased production time and process.

As described above, the electromagnetic coil and the valve of the existing solenoid valve are prone to failure, and there is another problem that the driving is unstable, the production time and the process are increased. Therefore, the main object of the present invention is to provide a high-efficiency solenoid valve, mainly to change the electromagnetic The structure of the valve reduces the volume, increases the water resistance, is easy to adjust, and improves the overall strength of the valve, solving the problems caused by the hardware structure of the existing solenoid valve.

The main technical means adopted for achieving the foregoing purpose is that the high-performance electromagnetic valve comprises: a casing having a hollow cylindrical shape, the casing having a lower opening, and a top end of the casing is formed with an adjustment hole; a bobbin, which is disposed in the casing, the bobbin includes a shaft tube and a second retaining wall, one end of the shaft tube is formed with a valve, and the other end of the shaft tube is formed with an adjusting portion, the retaining wall is radially arranged On the outer side of the shaft tube, a winding portion is formed between the two retaining walls, and a crater is formed on the inner side of the valve, the crater is one or more inlet pipes connecting the valve and one or more outlet pipes; The actuating member comprises a core, a spring and a magnetic conductive block. One end of the core is formed with a receiving groove, and the receiving groove is provided with a water stopping pad. Abutting against the crater, and the core is wrapped around the outside of the crater and extending downward, the spring is sandwiched between the core and the magnetic block, and the magnetic block is connected to the adjustment portion; A cover is coupled to the lower opening of the housing, and a through hole is formed in the center of the cover, and one end of the shaft tube having the valve is pierced through the through hole.

The high-performance electromagnetic valve composed of the foregoing components integrates the bobbin and the crater into one body, which can reduce the error and the manufacturing process and time during the bonding, and the iron core is pressed against the crater and covered in the crater with the water stop pad. The outer side extends downward to increase the water pressure and valve strength, and the distance between the bobbin and the valve can be reduced and the core gap can be controlled to a fixed value, which can greatly reduce the problem caused by the hardware structure of the existing solenoid valve.

10‧‧‧shell

11‧‧‧ opening

12‧‧‧Adjustment hole

13‧‧‧Outlet hole

14‧‧‧ magnet

141‧‧‧Bolt hole

20‧‧‧winding

21‧‧‧ shaft tube

211‧‧‧Adjustment Department

22‧‧‧Upper barrier

221‧‧‧Outlet slot

222‧‧‧ outlet

23‧‧‧ Lower barrier

24‧‧‧ Valve

241‧‧‧ water inlet

242‧‧‧Outlet

243‧‧ ‧ water inlet

244‧‧‧Water outlet

25‧‧‧Winding Department

26‧‧‧ crater

30‧‧‧Acoustic

31‧‧‧ iron core

311‧‧‧ accommodating slots

32‧‧‧ Spring

33‧‧‧Magnetic block

34‧‧‧ water pad

40‧‧‧ Cover

41‧‧‧through hole

42‧‧‧Flange

A‧‧‧ coil

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a preferred embodiment of the present invention.

Figure 3 is an exploded view of a bobbin in accordance with a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view (I) of a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view (2) of a preferred embodiment of the present invention.

Figure 6 is a schematic view (1) of use of a preferred embodiment of the present invention.

Figure 7 is a schematic view (2) of use of a preferred embodiment of the present invention.

Referring to a preferred embodiment of the present invention, please refer to FIGS. 1 to 3, which includes a housing 10, a bobbin 20, an actuating member 30 and a cover 40. The actuating member 30 is provided. In the bobbin 20, the bobbin 20 is interposed between the casing 10 and the cover 40.

As shown in FIG. 2, the housing 10 has a hollow cylindrical shape. The housing 10 has a lower opening 11. The top end of the housing 10 is formed with an adjustment hole 12 and an outlet hole 13. The adjustment hole 12 is Located in the shell At the center of the top end of the body 10, the outlet hole 13 is located at the edge of the top end of the housing 10. The outer side of the adjustment hole 12 is provided with a magnet 14, which is in the shape of a disk and has a bolt hole at the center thereof. 141.

The bobbin 20 includes a shaft tube 21, an upper retaining wall 22 and a lower retaining wall 23. The bottom end of the shaft tube 21 is formed with a valve 24, and the top end of the shaft tube 21 is formed with an adjusting portion 211, and the upper retaining wall 22 is The lower retaining wall 23 is respectively disposed on the outer side surface of the shaft tube 21 in a radial direction. As shown in FIGS. 2 and 3, the upper retaining wall 22 is provided on the outer side surface of the adjusting portion 211 of the shaft tube 21, and the upper retaining wall 22 An outlet slot 221 is formed in the upper retaining wall 22 and is connected to the outlet port 221 . The outlet slot 222 is disposed in the outlet opening 13 . The outermost end of the adjusting portion 211 is disposed in the adjusting hole 12; the lower blocking wall 23 is disposed on the outer side surface of the valve 24 of the shaft tube 21, and a winding portion 25 is formed between the upper blocking wall 22 and the lower blocking wall 23. The winding portion 25 is provided with a plurality of coils (not shown). The valve 24 includes more than one inlet pipe 241 and two outlet pipes 242. Further, a crater 26 is formed on the inner side of the valve 24, and the crater 26 is connected to the inlet pipe 241 and the outlet pipes 242. In the preferred embodiment, the adjustment portion 211 is formed with a plurality of internal threads.

The cover 40 is in the form of a disk which is coupled to the lower opening 11 of the housing 10. A through hole 41 is formed in the center of the cover 40. The end of the shaft tube 21 having the valve 24 is formed by the through hole. 41 is worn out, and a flange 42 is formed on the bottom surface of the cover 40.

As shown in FIG. 3, the actuating member 30 includes a core 31, a spring 32 and a magnetic conductive block 33. The bottom end of the core 31 is formed with a receiving groove 311. The receiving groove 311 is provided with a water stop pad. 34, the spring 32 is sandwiched between the core 31 and the magnetic block 33, the magnetic block 33 is columnar, and a cross recess is formed at the top end thereof for rotation (see not shown) to adjust its height. In the position, the side wall of the proximal end of the magnetic block 33 is formed with a plurality of external threads to be in contact with the internal thread of the adjusting portion 211.

Referring to FIGS. 4 and 5, the water stop pad 34 is a crater 26 that abuts against the inner side of the valve 24, and the outer side wall of the accommodating groove 311 of the core 31 is wrapped on the outer side of the crater 26 and extends toward the outside. The outlet pipe 242 is located at the axial center of the shaft tube 21. The outlet pipe 242 is L-shaped, and a water outlet 244 is formed on the outer side of the shaft tube 21. The two inlet pipes 241 are located at the outlet pipe 242. Relative to the outside, the water The tube 241 is formed with a water inlet 243 on the bottom surface of the shaft tube 21. As shown in FIGS. 4 and 5, the winding portion 25 is provided with a plurality of coils A. In the preferred embodiment, the water stop pad 34 is made of rubber or rubber.

Referring to Figures 6 and 7, the electromagnetic field generated when the coils A are energized causes the core 31 to move upward, thereby causing the water stop 34 to leave the crater 26, so that the water source (in the direction indicated by the arrow) is The inlet pipe 241 enters and flows out of the outlet pipe 242.

As can be seen from the above, the effects achieved by the novel include:

1. The side wall around the accommodating groove 311 of the core 31 is elongated below the crater 26, which not only saves space but also maintains a magnetic path when the core 31 is actuated.

2. The core 31 can further abut the lower portion of the crater 26 to limit the amount of compression of the water stop pad 34, thereby increasing the life of the water stop pad 34 and limiting the increase in magnetic resistance.

3. The bobbin 20 is integrated with the valve 24 and the crater 26, and the distance between the core 31 and the magnetic block 33 need not be adjusted, and the error in assembly and the manufacturing process and time can be reduced.

4. When the waterless pressure is assembled, the distance between the magnetic conductive block 33 and the core 31 can be controlled at a fixed value to improve the stability of the electromagnetic valve.

10‧‧‧shell

11‧‧‧ opening

12‧‧‧Adjustment hole

13‧‧‧Outlet hole

14‧‧‧ magnet

141‧‧‧Bolt hole

20‧‧‧winding

21‧‧‧ shaft tube

22‧‧‧Upper barrier

221‧‧‧Outlet slot

222‧‧‧ outlet

23‧‧‧ Lower barrier

24‧‧‧ Valve

25‧‧‧Winding Department

30‧‧‧Acoustic

40‧‧‧ Cover

41‧‧‧through hole

42‧‧‧Flange

Claims (9)

A high-performance solenoid valve comprising: a casing having a hollow cylindrical shape, the casing having a lower opening, and a top end of the casing is formed with an adjustment hole; a bobbin being disposed in the casing, the The bobbin includes a shaft tube and a second retaining wall, one end of the shaft tube is formed with a valve, and the other end of the shaft tube is formed with an adjusting portion, the blocking wall is radially disposed on the outer side of the shaft tube, and the two blocking walls are Forming a winding portion, the inside of the valve is formed with a crater, the crater is one or more inlet pipes connecting the valve and more than one outlet pipe; an actuating member is disposed in the shaft tube, the actuation The piece includes a core, a spring and a magnetic conductive block, and one end of the core is formed with a receiving groove, and the receiving groove is provided with a water stopping pad, the water stopping pad is against the crater, and the iron core is a bag Covering the outside of the crater and extending downward, the spring is sandwiched between the core and the magnetic block, the magnetic block is connected to the adjustment portion; and a cover is coupled to the lower opening of the housing, a through hole is formed in the center of the cover, and the shaft tube has a valve Piercing one end of the through hole. The high-performance solenoid valve according to claim 1, wherein the barrier wall is an upper barrier wall and a lower barrier wall, the upper barrier wall is disposed on an outer side surface of the adjustment portion of the shaft tube, and the lower barrier wall is disposed on the shaft An outer side surface of the valve of the tube, the upper retaining wall is formed with a wire trough and an outlet port, wherein the outlet trough is annularly disposed in the upper retaining wall and connected to the outlet port. The high-performance solenoid valve of claim 2, wherein the top end of the housing is formed with an adjustment hole and an outlet hole, the adjustment hole is located at the center of the top end of the housing, and the outlet hole is located at the edge of the top end of the housing. The outlet port is disposed in the outlet hole, and the outermost end of the adjustment portion is disposed in the adjustment hole. The high-performance solenoid valve according to claim 3, wherein a through hole is formed in a center of the cover, and one end of the shaft tube having the valve is passed through the through hole, and a bottom surface of the cover is formed with a flange. The high-performance solenoid valve according to claim 4, wherein the outer side of the adjusting hole is provided with a magnet, the magnet is in the form of a disk, and a bolt hole is formed at the center thereof. The high-performance solenoid valve according to claim 5, wherein the magnetic conductive block of the actuating member has a columnar shape, and one end of the magnetic conductive block is in contact with the adjusting portion. A high-performance solenoid valve according to claim 6, wherein the winding portion is provided with a plurality of coils. The high performance solenoid valve of claim 7, wherein the water stop pad is made of rubber or rubber. The high-performance solenoid valve according to any one of claims 1 to 8, wherein the outlet pipe of the crater is located at a shaft center of the shaft tube, the valve has two inlet pipes, and the inlet pipes are located at opposite sides of the outlet pipe. On the outside, the inlet pipes are formed with two water inlets on the bottom surface of the shaft tube, and the outlet pipe is L-shaped, and a water outlet is formed on the outer side surface of the shaft tube.