WO2018218495A1

WO2018218495A1 - Solenoid valve

Info

Publication number: WO2018218495A1
Application number: PCT/CN2017/086582
Authority: WO
Inventors: 王志刚
Original assignee: 惠州市唐群座椅科技股份有限公司
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2018-12-06
Also published as: WO2018218495A9

Abstract

Disclosed is a solenoid valve (10). The solenoid valve (10) comprises a first valve body section (30), a second valve body section (40), and an inflatable section (50). Multiple airflow channels in communication with each other are disposed in the first valve body section, the second valve body section and the inflatable section. The first valve body section is provided with an air discharge portion (32) in communication with the airflow channel and a first movable spool (33) located in the airflow channel. The second valve body section is provided with an air intake portion (42) in communication with the airflow channel and a second movable spool (43) located in the airflow channel. The inflatable section is used for connecting an object (20) to be inflated. By changing the position of the first movable spool and the position of the second movable spool, the states for inflating or deflating the object (20) to be inflated or maintaining the air pressure of the object (20) to be inflated can be formed.

Description

The electromagnetic valve

Technical field

The invention relates to a solenoid valve, in particular to a two-valve body which is assembled with each other, and a charging, deflation and air pressure is formed on an object to be inflated by a position change of two movable valve bodies in the valve body. A solenoid valve that maintains the state.

Background technique

The solenoid valve mainly controls the opening and closing of the pipeline or changes the flow direction of the fluid (generally compressed air or liquid) by energizing or de-energizing an excitation component (such as a solenoid).

For example, the Republic of China Announcement No. M259095 "New Solenoid Valve for Control Airbags" is a new type of solenoid valve. The case discloses a solenoid valve, which mainly combines the main valve bodies of the two solenoid valves into a single valve body, but respectively installs their respective The electromagnetic control coil, the inlet and the outlet of the electromagnetic valve are combined with each other by a horizontal strip, and a hole is drilled in the inlet side of the outlet valve to communicate with the outlet side of the intake valve, and is blocked by the plug. The air port is opened to allow the gas released after the operation of the intake valve to be supplied to the airbag controlled by the valve and simultaneously supplied to the other airbag through the through port, thereby achieving the effect of simultaneously inflating the two airbags. When it is necessary to release the gas to return to the original state without using the air source, the air energy of the two airbags is released from the outlet of the air release valve through the drill through hole operation between the air release valves to return to the original state.

In the foregoing patent, the main method is to install two valves on a main valve, so the main valve needs to provide another air flow passage, so that the gas entering through the intake valve can circulate in the air flow passages and reach the airbag. The effect of filling and deflation. As a result, the entire valve body structure becomes more complicated, and in the process of additional assembly, the internal sealing of the valve body is insufficient due to the incomplete sealing of the components, which affects the airtightness of the valve body.

For example, the Republic of China publicly discloses the invention patent No. M391019 "Solenoid valve for preventing pressure leakage", and discloses a solenoid valve which is provided with two electromagnetic switches in a valve body to control the displacement of the two pistons in the two piston grooves. At the same time, a switching valve is added in the valve body to switch the piston in the valve body through the switching valve, so as to prevent the two pistons from being pushed due to excessive pressure, and pressure leakage occurs.

In the aforementioned patent, the two solenoid valves are similarly assembled by the valve body, so it is also necessary to provide an air flow passage in the valve body for the solenoid valves to operate when the gas flows in the air flow passages. In this way, it is also easy to cause insufficient sealing of the valve body as a whole, which affects the airtightness of the valve body.

It can be seen from the above-mentioned shortcomings of the prior art that there are many need for emergency solutions to be solved and improved.

Summary of the invention

In view of the above, the main object of the present invention is to provide a two-valve body that is assembled with each other, and that a charge, a deflation, and a gas pressure maintaining state are formed on a to-be inflated body by a position change of two movable valve bodies in a two-valve body. Solenoid valve.

In accordance with the above objects, the present invention provides a solenoid valve including a first valve body section, a second valve body section, and an inflation section. The first valve body section has a first air flow passage, an exhaust portion communicating with the air flow passage, and a first movable spool located in the first air flow passage, the first movable spool having a decision The exhaust portion releases a closed position and an open position of a gas. The second valve body section is for connecting with the first valve body section, the first valve body section has a second air flow passage communicating with the first air flow passage, and a second air flow passage communicating with the second air flow passage An air inlet portion and a second movable valve core located in the second air flow passage, the second movable valve core having a closed position and an open position for determining the gas introduced into the air inlet portion. The inflating section is configured to connect the to-be inflated body, the inflating section has a third airflow passage communicating with the second airflow passage, wherein the first movable spool is in the closed position and the second movable valve The core is located at the open position, and the gas is formed by the air inlet portion and the third air flow passage to form an inflation stroke of the air to be inflated, wherein the first movable valve core is located at the open position The second movable spool is located at the closed position to define that the gas releases the gas from the gas to be inflated through the first airflow passage, the second airflow passage, and the third airflow passage to the exhaust portion to release the gas Forming an exhaust stroke for the object to be inflated and configuring the gas to remain in the object to be inflated by positioning the first variable spool in the closed position and the second variable spool in the closed position The gas to be inflated is subjected to a one-pressure maintenance stroke.

In one embodiment, the first valve body section further includes an elastic body disposed in the first air flow channel and a pair of excitation elements disposed on the first air flow path and receiving a magnetizing power to generate an attracting magnetic force. The elastic body pushes against the first movable valve core in the first air flow passage, and the first movable valve core is located at the closed position, and the excitation element attracts the first movable valve core by the attraction magnetic force and compresses the elasticity The body is such that the first movable spool is in the open position.

In an embodiment, the second valve body section further includes an elastic body disposed in the second air flow channel and a pair of second air flow channels disposed to receive an excitation power to generate an attractive magnetic force. The excitation element, the elastic body pushes against the second movable valve core in the second air flow passage, the second movable valve core is located in the closed position, and the excitation element attracts the second movable valve by the attraction magnetic force The core compresses the elastomer such that the second movable spool is in the open position.

In one embodiment, the solenoid valve is further disposed on a circuit board by using the first valve body section and the second valve body section.

In one embodiment, the first valve body section and the second valve body section further have an outer casing, and each outer casing has a plurality of positioning supports that can be inserted on the circuit board.

In an embodiment, the air intake portion, the first air flow channel, and the second air flow channel are disposed on the same extension line, and the first movable valve core and the second movable valve core are disposed along the extension line. An air flow channel and the second air flow channel.

In an embodiment, the first airflow channel and the second airflow channel further have an airflow guiding portion for communicating the first airflow channel and the second airflow channel.

In an embodiment, the airflow guiding portion further includes a first airflow guiding section and a second airflow guiding section communicating with the first airflow guiding section, the first airflow guiding section Located in the first valve body section in communication with the first airflow passage, the second airflow guiding section is located in the second valve body section in communication with the second airflow passage.

In an embodiment, the first valve body section and the second valve body section are further connected to each other by a connecting portion.

In an embodiment, the connecting portion further includes a first connecting portion and a second connecting portion, the first connecting portion is located in the first valve body portion, and the second connecting portion is located in the second valve body portion The first valve body section and the second valve body section are connected to each other by the first connecting portion and the second connecting portion.

Through the above technical solutions, the present invention can effectively achieve the following beneficial effects compared with the prior art:

The electromagnetic valve of the invention is assembled by the existing structure between the two valve bodies, and the sealing property of the integral electromagnetic valve can be ensured to improve the airtightness.

The change of the position of the two movable spools in the two valve body constitutes a charge, a deflation, and a gas pressure maintenance of the three states to be inflated.

DRAWINGS

Figure 1 is a perspective view of the present invention.

Figure 2 is a schematic cross-sectional view showing the first action of the present invention.

Figure 3 is a schematic cross-sectional view showing the second action of the present invention.

Figure 4 is a cross-sectional view showing the third action of the present invention.

FIG. 5 is a schematic perspective view showing a plurality of electromagnetic valves arranged on a circuit board according to the present invention.

detailed description

The detailed description and technical content of the present invention will now be described as follows:

Referring to FIG. 1 and FIG. 2, it can be clearly seen that the solenoid valve 10 of the present invention is used to connect a gas to be inflated 20 to form a charging, deflation and air pressure maintaining state. The solenoid valve 10 includes a first valve body section 30, a second valve body section 40, and an inflated section 50.

The first valve body section 30 has a first air flow passage 31, an exhaust portion 32, and a first movable spool 33. The first air flow passage 31 is located in the first valve body section 30 and communicates with the exhaust portion 32. The exhaust portion 32 can be connected to an external exhaust unit (which is not described herein in the prior art). Dissolving a gas from the exhaust portion 32, the first movable valve core 33 is located in the first air flow passage 31, and the first movable valve core 33 has a decision in the first air flow passage 31 The exhaust portion 32 releases a closed position and an open position of the gas. In this embodiment, the position of the first movable valve core 33 is controlled by an elastic body 34 and an excitation element 35. The elastic body 34 is disposed in the first air flow passage 31 and supports the first movable The first valve body 33 is held in the normally closed closed position in the first air flow passage 31, and the excitation element 35 is disposed in the first valve body section 30 corresponding to the first air flow. a position of the channel 31, and can be used to receive a magnetizing power to generate an attracting magnetic force in the first airflow channel 31, so as to utilize the attracting magnetic force to displace the first movable spool 33 in the first airflow channel 31 and The elastic body 34 is compressed such that the first movable spool 33 is held in the open position in the first air flow passage 31.

The second valve body section 40 is configured to be coupled to the first valve body section 30. The first valve body section 40 has a second air flow passage 41, an air inlet portion 42, and a second movable spool. 43. The second air flow passage 41 is located in the second valve body section 40 and communicates with the first air flow passage 31 of the first valve body section 30. The air inlet portion 42 and the second air flow passage 41 communicate with each other. An external air pumping unit (which is not described in detail in the prior art) can be used to introduce the gas into the air inlet portion 42 from the outside. The second movable valve core 43 is located in the second air flow passage 41. The second movable valve body 43 has a closed position and an open position in the second air flow passage 41 for determining the introduction of the gas into the air inlet portion 42. In this embodiment, the position of the second movable valve core 43 is controlled by an elastic body 44 and an excitation element 45. The elastic body 44 is disposed in the second air flow passage 41 and holds the second movable The second valve core 43 is held in the normally closed closed position in the second air flow passage 41, and the excitation element 45 is disposed on the second valve body section 40 corresponding to the second air flow channel. a position of the 41, and can be used to receive a magnetizing power to generate an attracting magnetic force in the second airflow passage 41, so as to utilize the attracting magnetic force to displace and compress the second movable spool 43 in the second airflow passage 41. The elastic body 44 holds the second movable valve body 43 in the open position in the second air flow passage 41.

The inflating section 50 is configured to connect the to-be-inflated body 20, the inflating section 50 has a third airflow passage 51 communicating with the second airflow passage 41, when the second movable spool 43 is in the second airflow The air intake portion 42 is in communication with the third air flow passage 51 when the passage 41 is held in the open position.

When the present invention is in operation, as shown in FIG. 2, when the first movable valve core 33 and the second movable valve core 43 are subjected to the elastic force of the

elastic bodies

34, 44, respectively, respectively, in the first air flow passage 31 and When the second air flow channel 41 is in the closed position, the air intake portion 42 and the exhaust portion 32 are respectively closed by the first movable valve core 33 and the second movable valve core 43 to make the air intake portion 42 The gas cannot be introduced, and the gas is likewise not released by the exhaust portion 32, so that the gas is in the to-be-inflated object 20, the third air flow passage 51, the second air flow passage 41, and the first air flow passage. A loop state is formed in 31, thereby causing the gas to be inflated body 20 to form a gas pressure maintaining state.

As shown in FIG. 3, when the first movable valve core 33 is subjected to the attraction magnetic force generated by the excitation element 35 in the first air flow passage 31, the second movable valve core 43 is in the second When the air flow channel 41 is not actuated by the excitation element 45, the first movable valve core 33 is displaced in the first air flow channel 31 toward the elastic body 34, and the elastic body 34 is compressed. A movable valve core 33 is located at an open position in the first air flow passage 31, so that the exhaust portion 32 forms a communication state with the first air flow passage 31, and the second movable valve core 43 is in the first state. The holding of the elastic body 44 in the two air flow passages 41 keeps the air inlet portion 42 in a closed state, and the gas passes through the third air flow passage 51 and the second air flow passage 41 from the gas to be inflated material 20 in sequence. After the first air flow passage 31 is exhausted from the exhaust port 32, an exhaust stroke is formed on the to-be-inflated body 20 to achieve the effect of exhausting the object to be inflated 20.

In addition, as shown in FIG. 4, when the second movable valve element 43 is actuated by the attraction magnetic force generated by the excitation element 45 in the second air flow passage 41, the first movable valve core 33 is in the first When the air flow channel 31 is not actuated by the excitation element 35, the second movable valve core 43 will be in the second air flow channel 41. The inner portion is displaced toward the elastic body 44, and the elastic body 44 is compressed, so that the second movable valve body 43 is located at an open position in the second air flow passage 41, so that the air inlet portion 42 and the second air inlet portion 42 The air flow passage 41 forms a communication state, and the first movable valve core 33 is held by the elastic body 34 in the first air flow passage 31 to keep the exhaust portion 32 in a closed state. The air inlet portion 42 enters the second air flow passage 41 and enters the to-be-inflated object 20 through the third air flow passage 51, thereby forming an inflation stroke for the to-be-inflated object 20 to inflate the to-be-inflated object 20. effect.

As described above, the solenoid valve 10 of the present invention mainly controls the positions of the first movable valve core 33 and the second movable valve core 43 in the first air flow passage 31 and the second air flow channel 41. With the change, the control of the inflated object 20 can be achieved for three different strokes.

Referring to FIG. 1 and FIG. 2, in the embodiment, the solenoid valve 10 of the embodiment is further configured to be mounted on a circuit board 60, mainly disposed on the first valve body section 30. a first outer casing 36 and a second outer casing 46 are disposed on the second outer casing 36, and the first outer casing 36 and the second outer casing 46 are extended toward the circuit board 60. a plurality of

positioning support portions

37, 47 corresponding to the plurality of positioning holes 61 on the circuit board 60, so that the electromagnetic valve 10 can be inserted through the

positioning support portions

37, 47. The positioning holes 61 further enable the solenoid valve 10 to be fixed to the circuit board 60.

In addition, in the embodiment, the second valve body section 40 and the inflation section 50 may be an integral valve body design, and the first valve body section 30 and the second valve body section 40 are The connecting portion 70 includes a first connecting portion 71 and a second connecting portion 72. The first connecting portion 71 is disposed on the first valve body portion 30, and the second connecting portion is disposed. 72 is disposed on the second valve body section 40 such that the first valve body section 30 and the second valve body section 40 are connected to each other.

Furthermore, the first airflow channel 31 and the second airflow channel 41 are further connected to each other by an airflow guiding portion 80. The airflow guiding portion 80 is composed of a first airflow guiding section 81 and a first a second airflow guiding section 82 is formed by the airflow guiding section 81. The first airflow guiding section 81 is disposed on the first connecting portion 71, and the second airflow guiding section 82 is disposed on the first air guiding section 82. The first connecting portion 71 can enable the first airflow when the first valve body section 30 and the second valve body section 40 are connected to each other by the first connecting portion 71 and the second connecting portion 72. The passage 31 and the second air flow passage 41 communicate with each other through the air flow guiding portion 80 composed of the first air flow guiding portion 81 and the second air flow guiding portion 82, so that the gas can pass through the air flow. The guiding portion 80 then flows between the first air flow passage 31 and the second air flow passage 41.

The air intake portion 42, the second air flow passage 41, the air flow guide portion 80, and the first air flow passage 41 are further disposed on the same extension line, and the first movable valve core 33 and the second movable core The movable valve core 43 is disposed in the first air flow passage 31 and the second air flow passage 41 along the extension line, so as to make the flow of the gas between the first air flow passage 31 and the second air flow passage 41 smoother. And can reduce the loss of the gas in the flow channels.

As shown in FIG. 5, the solenoid valve 10 of the present invention may further be arranged in a plurality of groups on the circuit board 60. The air inlet portions 42 of the solenoid valves 10 may be connected in series with each other and connected to an external air extraction unit. When the external pumping unit extracts a gas from the outside, the gas can be simultaneously introduced into each of the solenoid valves 10 from the intake portions 42. In addition, the exhaust portions 32 of the solenoid valves 10 may be connected in series to each other and connected to an external exhaust unit. When the external exhaust unit extracts the gas from the exhaust portion 32, each of the electromagnetic units can be made. The gas in the valve 10 is simultaneously extracted from the exhaust portions 32 at the same time.

Industrial applicability

The electromagnetic valve of the invention is assembled through the existing structure between the two valve bodies, and the sealing property of the integral electromagnetic valve can be ensured to improve the airtightness.

Claims

A solenoid valve for connecting a to-be-inflated body to form a charging, deflation, and air pressure maintaining state, the solenoid valve comprising:

a first valve body section having a first air flow passage, an exhaust portion communicating with the first air flow passage, and a first movable spool at the first air flow passage, The first movable valve core has a closed position and an open position for determining the gas released from the exhaust portion;

a second valve body section for connecting to the first valve body section, the first valve body section having a second air flow passage communicating with the first air flow passage, and a second air flow passage communicating with the second air flow passage An air inlet portion and a second movable valve core located in the second air flow passage, the second movable valve core having a closed position and an open position determining the gas introduced into the air inlet portion;

An inflating section for connecting the to-be inflated body, the inflating section having a third airflow passage communicating with the second airflow passage, the first movable spool being in the closed position and the second movable The valve core is located at the open position to define a gas from the intake portion via the second air flow passage and the third air flow passage to constitute an inflation stroke of the to-be inflated body, wherein the first movable spool is located at the open position The second movable spool is located at the closed position to define that the gas is discharged from the gas to be inflated through the first airflow passage, the second airflow passage, and the third airflow passage to the exhaust portion to release gas. Performing an exhaust stroke on the object to be inflated and defining that the gas is maintained in the object to be inflated by the first variable spool being in the closed position and the second variable spool is located in the closed position The object is subjected to a pressure to maintain the stroke.
A solenoid valve according to claim 1 or 2, wherein the first valve body section further comprises an elastic body disposed in the first air flow channel and a pair of first air flow passages disposed and receiving an excitation power generation An excitation element that attracts a magnetic force, the elastic body pushes against the first movable valve core in the first air flow passage, the first movable valve core is located at the closed position, and the excitation element attracts the first The spool is compressed and the elastomer is compressed such that the first movable spool is in the open position.
The solenoid valve according to claim 1, wherein the second valve body section further comprises an elastic body disposed in the second air flow channel and a pair of second air flow passages disposed to receive a excitation power generation An excitation element that attracts a magnetic force, the elastic body pushes against the second movable valve core in the second air flow passage, the second movable valve core is located at the closed position, and the excitation element attracts the second The spool is compressed and the elastomer is compressed such that the second movable spool is in the open position.
A solenoid valve according to claim 1, wherein the solenoid valve further utilizes the first valve The body section and the second valve body section are disposed on a circuit board.
The solenoid valve according to claim 4, wherein the first valve body section and the second valve body section further have an outer casing, and each outer casing has a plurality of pluggable circuits Positioning support on the board.
The solenoid valve according to claim 1, wherein the air inlet portion, the first air flow passage and the second air flow passage are disposed on the same extension line, and the first movable valve core and the second movable valve core The first air flow channel and the second air flow channel are disposed along the extension line.
The solenoid valve according to claim 1, wherein the first air flow passage and the second air flow passage further have an air flow guiding portion for communicating the first air flow passage and the second air flow passage.
The solenoid valve according to claim 7, wherein the airflow guiding portion further comprises a first airflow guiding section and a second airflow guiding section communicating with the first airflow guiding section, The first airflow guiding section is located in the first valve body section in communication with the first airflow passage, and the second airflow guiding section is located in the second valve body section in communication with the second airflow passage.
The solenoid valve of claim 1 wherein the first valve body section and the second valve body section are further interconnected by a joint.
The solenoid valve according to claim 9, wherein the connecting portion further comprises a first connecting portion and a second connecting portion, the first connecting portion is located at the first valve body portion, and the second connecting portion is located The second valve body section interconnects the first valve body section and the second valve body section with the first connection portion and the second connection portion.