A solenoid valve silencing device

Abstract

The utility model proposes a solenoid valve silencing device, including a skeleton, a yoke iron bracket, a moving iron core, and a static iron core. The moving iron core is arranged in a skeleton cavity, and the moving iron core moves back and forth in the skeleton cavity. The static iron core is clamped with the skeleton, one end of the static iron core is placed in the skeleton cavity, and the other end of the static iron core is exposed outside the skeleton cavity. A copper coil is provided on the outside of the skeleton cavity, and sealing gaskets are provided at both ends of the moving iron core. The sealing gaskets include a front sealing gasket and a rear sealing gasket. A first protrusion is provided at one end of the moving iron core, and a first groove is provided at the other end of the moving iron core. The front sealing gasket is sleeved with the first protrusion, and the rear sealing gasket is clamped with the first groove. When the moving iron core moves in the skeleton cavity, the moving iron core collides with the static iron core, and when the moving iron core collides with the skeleton, the sealing gasket is used to mitigate the collision and reduce noise. Since the front sealing gasket is sleeved with the first protrusion and the rear sealing gasket is clamped with the first groove, the sealing gasket is not easy to fall off when the moving iron core moves in the skeleton cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile products, in particular to a solenoid valve silencing device. Background Art

[0002] With the rapid development of new energy, the driving compartment is relatively quiet. In order to reduce internal noise and improve comfort, some car seats are equipped with pneumatic comfort systems. The pneumatic lumbar support system achieves lumbar support and lumbar support comfort adjustment through the inflation and deflation of air bags. The electromagnetic air valve must simultaneously meet the functions of inflation, pressure maintenance and deflation. Previous products usually require two electromagnetic air valves to meet the inflation, pressure maintenance and deflation functions of an air bag, which not only increases the complexity and volume of the structure, but also increases the cost of the product.

[0003] With the rapid development of the automobile industry and the expansion of market demand, new energy vehicles are becoming more and more popular, and the requirements for corresponding parts structure in terms of noise and space design are becoming higher and higher.

[0004] At present, the pneumatic lumbar support in the industry mainly uses a controller-mounted valve to control the inflation and deflation switch of the system. The structure, size and height of the valve will affect the arrangement and placement of the control system inside the seat, as well as the noise generated by the collision between the static iron core and the moving iron core inside the valve.

[0005] A solenoid valve is a device that works based on the principle of electromagnetic induction. It is mainly used to control the flow of fluids (such as gas or liquid). It consists of two parts: an electromagnet and a valve body. The electromagnet part includes a coil, a valve core and a valve body. Its working principle can be summarized as follows: When powered on: the current passes through the electromagnetic coil to generate a magnetic field, which acts on the valve core, attracting or pushing the valve core open, causing the valve core to move, thereby changing the inlet and outlet states of the valve body to achieve fluid on-off control or flow regulation. When powered off: the electromagnetic force disappears, the valve core is reset under the action of the spring force, the valve is closed, and the air inlet is sealed to stabilize the gas flow in the main airway.

[0006] Solenoid valves play an important role in automated control systems. They can automatically control based on signals from sensors, controllers, CAN / LIN communications, and other signals to achieve functions such as automatic switching of fluids and flow rate control, thereby improving production efficiency and equipment stability.

[0007] The existing patent publication number: CN 118030891 A, discloses a deflated silent valve, which includes a fixing frame, a solenoid valve, an A air nozzle and a B air nozzle, the solenoid valve is fixed in the fixing frame, the A air nozzle and the B air nozzle are respectively fixed at the two ends of the solenoid valve, the A air nozzle is provided with an A air channel and a B air channel, the A air channel and the B air channel are connected to each other through the inner cavity of the solenoid valve, the B air nozzle is provided with a C air channel, the C air channel is connected to the inner cavity of the solenoid valve, the B air channel is closed or the C air channel is closed by the solenoid valve, and two air flow deceleration blocks are fixed in the B air channel. The beneficial effect of the present invention is that when the solenoid valve closes the C air channel, the gas enters from the A air channel and is discharged outward through the B air channel, and when the unloaded gas passes through the deceleration channel, the gas in the deceleration channel undergoes counterflow collision, thereby reducing the flow rate and changing the frequency of the gas sound, and reducing the noise generated when the gas is discharged.

[0008] However, the prior art has the problem that when the iron column moves in the valve body, the iron column will collide with the valve body to generate noise. Although rubber blocks are provided at both ends of the iron column in the prior art, the problem solved by the prior art is to absorb the impact force when closing the B airway or the C airway, and the connection relationship and shape of the rubber block and the iron column are not clearly stated, and the noise problem cannot be solved. At the same time, the rubber block is easy to fall off during the movement. Utility Model Content

[0009] Therefore, in order to solve the above technical problems, the utility model proposes a solenoid valve silencing device, including a skeleton 10, a yoke bracket 20, a moving iron core 30, and a static iron core 40. The moving iron core 30 is arranged in the cavity of the skeleton 10, and the moving iron core 30 moves back and forth in the cavity of the skeleton 10. The static iron core 40 is clamped with the skeleton 10, one end of the static iron core 40 is placed in the cavity of the skeleton 10, and the other end of the static iron core 40 is exposed outside the cavity of the skeleton 10. A copper coil 50 is provided on the outside of the cavity of the skeleton 10, and sealing gaskets 60 are provided at both ends of the moving iron core 30. The sealing gasket 60 includes a front sealing gasket 601 and a rear sealing gasket 602. A first protrusion 70 is provided at one end of the moving iron core 30. The other end of the moving iron core 30 is a first groove 80, the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80. When the moving iron core 30 moves in the cavity of the skeleton 10, the moving iron core 30 collides with the static iron core 40, and when the moving iron core 30 collides with the skeleton 10, the sealing gasket 60 is used to mitigate the collision and reduce noise. Since the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80, the sealing gasket 60 is not easy to fall off when the moving iron core 30 moves in the cavity of the skeleton 10. At the same time, under the action of the sealing gasket 60, the collision can be mitigated and the noise can be reduced.

[0010] A solenoid valve silencing device includes a frame 10, a yoke bracket 20, a moving iron core 30, and a static iron core 40. The moving iron core 30 is arranged in the cavity of the frame 10, and the moving iron core 30 moves back and forth in the cavity of the frame 10. The static iron core 40 is clamped with the frame 10. One end of the static iron core 40 is placed in the cavity of the frame 10, and the other end of the static iron core 40 is exposed outside the cavity of the frame 10. A copper coil 50 is arranged outside the cavity of the frame 10, and sealing pads 60 are arranged at both ends of the moving iron core 30. The sealing gasket 60 includes a front sealing gasket 601 and a rear sealing gasket 602. A first protrusion 70 is provided at one end of the moving iron core 30, and a first groove 80 is provided at the other end of the moving iron core 30. The front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80. When the moving iron core 30 moves in the cavity of the skeleton 10, the moving iron core 30 collides with the static iron core 40, and when the moving iron core 30 collides with the skeleton 10, the sealing gasket 60 is used to mitigate the collision and reduce noise.

[0011] Furthermore, the yoke bracket 20 is a groove opening downward, the frame 10 is clamped with the groove at one end of the yoke bracket 20, and the static iron core 40 is clamped with the groove at the other end of the yoke bracket 20, so that the yoke bracket 20 is not easy to shake.

[0012] Furthermore, the first protrusion 70 is a T-shaped protrusion, and the front sealing gasket 601 is C-shaped. The C-shaped front sealing gasket 601 is sleeved with the T-shaped protrusion, so that the front sealing gasket 601 is not easy to fall off during movement.

[0013] Furthermore, after the front sealing gasket 601 is engaged with the first protrusion 70 , a gap is left between the front sealing gasket 601 and the main body of the moving iron core 30 , so as to squeeze the front sealing gasket 601 into place and facilitate installation.

[0014] Furthermore, the first groove 80 is a trumpet-shaped groove, and the rear sealing gasket 602 is mushroom-shaped. The mushroom-shaped rear sealing gasket 602 is snap-fitted with the trumpet-shaped groove, which facilitates the interference fit between the rear sealing gasket 602 and the first groove 80 to prevent falling off, and at the same time facilitates the abutment between the moving iron core 30 and the static iron core 40.

[0015] Furthermore, the first groove 80 is provided with a protrusion 90 bent toward the main body of the moving iron core 30, for ensuring that the rear sealing gasket 602 is tightly fitted with the first groove 80 after installation. If the rear sealing gasket 602 is not installed in place, it will be pushed out and fall off. When in place, the rear sealing gasket 602 is tightly fitted with the first groove 80 and will not fall off.

[0016] Furthermore, the moving iron core 30 and the static iron core 40 are made of alloy.

[0017] Furthermore, a spring 100 is provided at the contact point between the static iron core 40 and the moving iron core 30, one end of the spring 100 is sleeved on the static iron core 40, and the other end of the spring 100 is sleeved on the moving iron core 30. A spring limit clamp is provided on the static iron core 40 to prevent the spring from moving backward. When power is turned on, the copper coil 50 generates magnetism so that the moving iron core 30 compresses the spring 100 to move toward the static iron core 40. When power is turned off, the magnetic force disappears, and the moving iron core 30 is separated from the static iron core 40 under the action of the spring 100.

[0018] Furthermore, a trachea connector 110 is provided at one end of the skeleton 10. The trachea connector 110 is sleeved on one end of the trachea, and the other end of the trachea is connected to an air bag for inflating and deflating the air bag.

[0019] Furthermore, an air inlet and outlet 120 is further provided at one end of the skeleton 10 , and the air inlet and outlet 120 is communicated with the air pipe connector 110 , and the air inlet and outlet 120 is used for conveying gas.

[0020] Beneficial effects of the utility model: The utility model proposes a solenoid valve silencing device, including a skeleton 10, a yoke bracket 20, a moving iron core 30, and a static iron core 40. The moving iron core 30 is arranged in the cavity of the skeleton 10, and the moving iron core 30 moves back and forth in the cavity of the skeleton 10. The static iron core 40 is clamped with the skeleton 10, one end of the static iron core 40 is placed in the cavity of the skeleton 10, and the other end of the static iron core 40 is exposed outside the cavity of the skeleton 10. A copper coil 50 is provided on the outside of the cavity of the skeleton 10, and sealing gaskets 60 are provided at both ends of the moving iron core 30. The sealing gaskets 60 include a front sealing gasket 601 and a rear sealing gasket 602. One end of the moving iron core 30 is provided with a first protrusion 70. The other end of the moving iron core 30 is a first groove 80, the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80. When the moving iron core 30 moves in the cavity of the skeleton 10, the moving iron core 30 collides with the static iron core 40, and when the moving iron core 30 collides with the skeleton 10, the sealing gasket 60 is used to mitigate the collision and reduce noise. Since the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80, the sealing gasket 60 is not easy to fall off when the moving iron core 30 moves in the cavity of the skeleton 10. At the same time, under the action of the sealing gasket 60, the collision can be mitigated and the noise can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1The utility model is a schematic diagram of the overall structure of a solenoid valve silencing device.

[0022] Figure 2 It is a cross-sectional view of a solenoid valve silencing device of the utility model.

[0023] Figure 3 It is a partial enlarged view of the structure of a solenoid valve silencing device of the utility model.

[0024] Figure 4 It is a partial enlarged view of the structure of a solenoid valve silencing device of the utility model.

[0025] Description of main component symbols:

[0026] The skeleton 10 , the yoke bracket 20 , the moving iron core 30 , the static iron core 40 , the copper coil 50 , the sealing gasket 60 , the front sealing gasket 601 , the rear sealing gasket 602 , the first convex block 70 , the first groove 80 , the protrusion 90 , the spring 100 , the air pipe connector 110 , and the air inlet and outlet 120 .

[0027] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0028] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0029] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0030] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections. Embodiment 1:

[0031] like Figure 1 As shown in FIG. 1 , it is a schematic diagram of the overall structure of a solenoid valve silencing device of the utility model; Figure 2 As shown, it is a cross-sectional view of a solenoid valve silencing device of the utility model; Figure 3 As shown in FIG. 1 , it is a partial enlarged view of the structure of a solenoid valve silencing device of the utility model; Figure 4The figure shows a partial enlarged view of the structure of a solenoid valve silencing device of the utility model.

[0032] A solenoid valve silencing device includes a frame 10, a yoke bracket 20, a moving iron core 30, and a static iron core 40. The moving iron core 30 is arranged in the cavity of the frame 10, and the moving iron core 30 moves back and forth in the cavity of the frame 10. The static iron core 40 is clamped with the frame 10. One end of the static iron core 40 is placed in the cavity of the frame 10, and the other end of the static iron core 40 is exposed outside the cavity of the frame 10. A copper coil 50 is arranged outside the cavity of the frame 10, and sealing pads 60 are arranged at both ends of the moving iron core 30. The sealing gasket 60 includes a front sealing gasket 601 and a rear sealing gasket 602. A first protrusion 70 is provided at one end of the moving iron core 30, and a first groove 80 is provided at the other end of the moving iron core 30. The front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80. When the moving iron core 30 moves in the cavity of the skeleton 10, the moving iron core 30 collides with the static iron core 40, and when the moving iron core 30 collides with the skeleton 10, the sealing gasket 60 is used to mitigate the collision and reduce noise.

[0033] The yoke bracket 20 is a groove opening downward, the frame 10 is clamped with the groove at one end of the yoke bracket 20, and the static iron core 40 is clamped with the groove at the other end of the yoke bracket 20, so that the yoke bracket 20 is not easy to shake.

[0034] The first protrusion 70 is a T-shaped protrusion, and the front sealing gasket 601 is C-shaped. The C-shaped front sealing gasket 601 is sleeved with the T-shaped protrusion, so that the front sealing gasket 601 is not easy to fall off during movement.

[0035] After the front sealing gasket 601 is engaged with the first protrusion 70 , a gap is left between the front sealing gasket 601 and the main body of the moving iron core 30 , so as to squeeze the front sealing gasket 601 into place and facilitate installation.

[0036] The first groove 80 is a trumpet-shaped groove, and the rear sealing gasket 602 is mushroom-shaped. The mushroom-shaped rear sealing gasket 602 is snap-fitted with the trumpet-shaped groove, which facilitates the interference fit between the rear sealing gasket 602 and the first groove 80 to prevent falling off, and at the same time facilitates the abutment between the moving iron core 30 and the static iron core 40.

[0037] The first groove 80 is provided with a protrusion 90 bent toward the main body of the moving iron core 30, for ensuring that the rear sealing gasket 602 fits tightly with the first groove 80 after installation. If the rear sealing gasket 602 is not installed in place, it will be pushed out and fall off. When in place, the rear sealing gasket 602 fits tightly with the first groove 80 and will not fall off.

[0038] The moving iron core 30 and the stationary iron core 40 are made of alloy.

[0039] A spring 100 is provided at the contact point between the static iron core 40 and the moving iron core 30, one end of the spring 100 is sleeved on the static iron core 40, and the other end of the spring 100 is sleeved on the moving iron core 30. A spring limit clamp is provided on the static iron core 40 to prevent the spring from moving backward. When power is turned on, the copper coil 50 generates magnetism, so that the moving iron core 30 compresses the spring 100 to move toward the static iron core 40. When power is turned off, the magnetic force disappears, and the moving iron core 30 is separated from the static iron core 40 under the action of the spring 100.

[0040] A trachea connector 110 is provided at one end of the skeleton 10. The trachea connector 110 is sleeved with one end of the trachea, and the other end of the trachea is connected to an air bag for inflating and deflating the air bag.

[0041] An air inlet and outlet 120 is also provided at one end of the frame 10 . The air inlet and outlet 120 is communicated with the air pipe connector 110 . The air inlet and outlet 120 is used to transport gas.

[0042] Beneficial effects of the utility model: The utility model proposes a solenoid valve silencing device, including a skeleton 10, a yoke bracket 20, a moving iron core 30, and a static iron core 40. The moving iron core 30 is arranged in the cavity of the skeleton 10, and the moving iron core 30 moves back and forth in the cavity of the skeleton 10. The static iron core 40 is clamped with the skeleton 10, one end of the static iron core 40 is placed in the cavity of the skeleton 10, and the other end of the static iron core 40 is exposed outside the cavity of the skeleton 10. A copper coil 50 is provided on the outside of the cavity of the skeleton 10, and sealing gaskets 60 are provided at both ends of the moving iron core 30. The sealing gaskets 60 include a front sealing gasket 601 and a rear sealing gasket 602. One end of the moving iron core 30 is provided with a first protrusion 70. The other end of the moving iron core 30 is a first groove 80, the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80. When the moving iron core 30 moves in the cavity of the skeleton 10, the moving iron core 30 collides with the static iron core 40, and when the moving iron core 30 collides with the skeleton 10, the sealing gasket 60 is used to mitigate the collision and reduce noise. Since the front sealing gasket 601 is sleeved with the first protrusion 70, and the rear sealing gasket 602 is clamped with the first groove 80, the sealing gasket 60 is not easy to fall off when the moving iron core 30 moves in the cavity of the skeleton 10. At the same time, under the action of the sealing gasket 60, the collision can be mitigated and the noise can be reduced.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A solenoid valve silencing device, comprising a frame (10), a yoke bracket (20), a moving iron core (30), and a static iron core (40), wherein the moving iron core (30) is arranged in a cavity of the frame (10), and the moving iron core (30) moves back and forth in the cavity of the frame (10), the static iron core (40) is clamped with the frame (10), one end of the static iron core (40) is placed in the cavity of the frame (10), and the other end of the static iron core (40) is exposed outside the cavity of the frame (10), and a copper coil (50) is arranged outside the cavity of the frame (10), characterized in that: Sealing pads (60) are provided at both ends of the moving iron core (30), and the sealing pads (60) include a front sealing pad (601) and a rear sealing pad (602). A first protrusion (70) is provided at one end of the moving iron core (30), and a first groove (80) is provided at the other end of the moving iron core (30). The front sealing pad (601) is sleeved with the first protrusion (70), and the rear sealing pad (602) is clamped with the first groove (80). When the moving iron core (30) moves in the cavity of the skeleton (10), the moving iron core (30) collides with the static iron core (40), and when the moving iron core (30) collides with the skeleton (10), the sealing pad (60) is used to mitigate the collision and reduce noise.

2. The solenoid valve silencing device according to claim 1, characterized in that The yoke bracket (20) is a groove opening downward, the frame (10) is engaged with the groove at one end of the yoke bracket (20), and the static iron core (40) is engaged with the groove at the other end of the yoke bracket (20), so that the yoke bracket (20) is not easy to shake.

3. The solenoid valve silencing device according to claim 1, characterized in that : The first protrusion (70) is a T-shaped protrusion, and the front sealing gasket (601) is C-shaped. The C-shaped front sealing gasket (601) is sleeved with the T-shaped protrusion, so that the front sealing gasket (601) is not easy to fall off during movement.

4. The solenoid valve silencing device according to claim 3 is characterized in that After the front sealing gasket (601) is snap-fitted to the first protrusion (70), a gap is left between the front sealing gasket (601) and the main body of the moving iron core (30), which is used for squeezing the front sealing gasket (601) into place and facilitating installation.

5. The solenoid valve silencing device according to claim 1, characterized in that The first groove (80) is a trumpet-shaped groove, and the rear sealing gasket (602) is mushroom-shaped. The mushroom-shaped rear sealing gasket (602) is snap-fitted with the trumpet-shaped groove, which facilitates the interference fit between the rear sealing gasket (602) and the first groove (80) to prevent falling off, and at the same time facilitates the abutment between the moving iron core (30) and the static iron core (40).

6. The solenoid valve silencing device according to claim 5, characterized in that The first groove (80) is provided with a protrusion (90) bent toward the main body of the moving iron core (30) to ensure that the rear sealing gasket (602) is tightly fitted with the first groove (80) after installation. If the rear sealing gasket (602) is not installed in place, it will be pushed out and fall off. After it is in place, the rear sealing gasket (602) is tightly fitted with the first groove (80) and will not fall off.

7. The solenoid valve silencing device according to claim 1, characterized in that The moving iron core (30) and the stationary iron core (40) are made of an alloy.

8. The solenoid valve silencing device according to claim 1, characterized in that A spring (100) is provided at the contact point between the static iron core (40) and the moving iron core (30), one end of the spring (100) is sleeved with the static iron core (40), and the other end of the spring (100) is sleeved with the moving iron core (30). A spring limit stop is provided on the static iron core (40) for preventing the spring from moving backward. When power is turned on, the copper coil (50) generates magnetism, so that the moving iron core (30) compresses the spring (100) and moves toward the static iron core (40). When power is turned off, the magnetic force disappears, and the moving iron core (30) is separated from the static iron core (40) under the action of the spring (100).

9. The solenoid valve silencing device according to claim 1, characterized in that A trachea connector (110) is provided at one end of the skeleton (10), the trachea connector (110) is sleeved on one end of the trachea, and the other end of the trachea is connected to an air bag for inflating and deflating the air bag.

10. The solenoid valve silencing device according to claim 9, characterized in that One end of the skeleton (10) is also provided with an air inlet and outlet (120), the air inlet and outlet (120) being in communication with the air pipe connector (110), and the air inlet and outlet (120) being used for conveying gas.

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