Dual-head solenoid valve

Abstract

This utility model relates to the field of solenoid valve technology, and more particularly to a dual-head solenoid valve, including a mounting bracket. Both ends of the mounting bracket have winding grooves at their center, and coils are sleeved on the outer sides of the winding grooves. The top center of the mounting bracket has an air inlet, and both sides of the air inlet have connecting holes. A first air passage connected to the air inlet is integrally formed in the center of the mounting bracket, near the winding grooves. This utility model, by setting up a mounting bracket, winding coils at both ends of the mounting bracket, and simultaneously setting a transmission mechanism and a sealing mechanism in the through holes inside both ends of the mounting bracket, forms two solenoid valve structures. The top center of the mounting bracket has two connecting holes and an air inlet located in the center, forming a passage when the solenoid valve structure is energized, thereby inflating the air bags on the two connecting holes. Therefore, if one solenoid valve structure is damaged, it does not affect the operation of the other solenoid valve structure.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and in particular to a double-headed solenoid valve. Background Technology

[0002] The development trend and potential of new energy vehicles are enormous, and they have the potential to become the mainstream of the future automotive market. Firstly, with increasing environmental awareness and continuous technological advancements, the advantages of new energy vehicles in terms of environmental protection, energy conservation, and intelligence are gradually becoming apparent. The level of intelligence in electric vehicles is also increasing, with technologies such as autonomous driving and intelligent connectivity constantly developing, which will further enhance the user experience of electric vehicles.

[0003] As people's living standards improve, their demands for car seat comfort are also increasing. Car massage seats, which can alleviate driving fatigue, are widely welcomed. In the past, with gasoline-powered cars, engine noise was significant, so lumbar support and massage sounds in the seats were relatively overlooked. Currently, the pneumatic components in the comfort systems of new energy vehicles have a dedicated solenoid valve to control the pressure in the main air passage, preventing excessive pressure from affecting the lifespan of the car seat comfort system. The solenoid valve is directly connected to the main air passage, and its operation is achieved by controlling the inflation and deflation of each air passage through an electromagnet within the valve.

[0004] Most existing new energy vehicle seats are inflated using air pumps, with the air pump's outlet connected to the main air duct via a single solenoid valve. However, the assembly process for each solenoid valve is complex, resulting in low efficiency and high overall costs for quality control and maintenance. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a dual-head solenoid valve to solve the problem that most existing new energy vehicle seats are inflated by air pumps. The air pump outlet is mostly connected to the main air channel through a single solenoid valve. When high-pressure gas passes through a single solenoid valve, it is easy to damage the solenoid valve, affecting normal use and reducing the user experience.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A dual-head solenoid valve includes a mounting bracket. Both ends of the mounting bracket have winding grooves at their center. A coil is fitted around the outer side of each winding groove. The top center of the mounting bracket has an air inlet. Both sides of the air inlet have connecting holes. A first air passage, communicating with the air inlet, is integrally formed in the center of the mounting bracket, near the winding groove. The bottom center of the mounting bracket has a mounting groove. Both ends of the mounting bracket have through holes, the inner diameter of which is larger than the diameter of the first air passage. A transmission mechanism is provided inside the through holes on both sides, at the ends closest to each other. A sealing mechanism is provided inside the through holes on both sides, at the ends furthest from each other.

[0008] Furthermore, the mounting bracket has slots at the center of both the front and rear sides, and conductive posts are fixedly installed inside the slots. The top of the conductive posts is electrically connected to the coil.

[0009] Furthermore, the mounting bracket has slots at both the front and rear ends near the winding groove in the middle, and the bottom of both coils has a U-shaped frame with a first U-shaped groove and a second U-shaped groove at the middle of each end of the frame.

[0010] Furthermore, one end of the frame is engaged with the inside of the slot via a second U-shaped groove, and the other end of the frame is engaged with the outer end of the mounting bracket via a first U-shaped groove, with the center of the first U-shaped groove coinciding with the center of the through hole.

[0011] Furthermore, both of the transmission mechanisms include a movable shaft, and both ends of the movable shaft are provided with mating grooves, with a sealing cover fixedly installed inside the mating groove.

[0012] Furthermore, the inner wall of the through hole and the position corresponding to the movable shaft are integrally formed with multiple guide ribs, and the multiple guide ribs are distributed in a ring array about the center of the through hole. The outer wall of the movable shaft is slidably connected to the guide ribs, and one of the sealing caps is in contact with the first air passage.

[0013] Furthermore, the two sealing mechanisms include plugs, which are installed inside the through hole and located on one side of the movable shaft. A convex ring is integrally formed in the middle of the end of the plug away from the movable shaft. The convex ring contacts the inside of the first U-shaped groove. A mounting cavity is provided in the middle of the end of the plug near the movable shaft. A spring is fixedly connected inside the mounting cavity. The other end of the spring contacts another door sealing cover. A vent hole is provided in the middle of the convex ring, and the vent hole communicates with the mounting cavity.

[0014] Furthermore, an annular groove is provided on the outer side of the middle part of the plug, and a sealing ring that contacts the inner wall of the through hole is sleeved inside the annular groove. One end of the plug near the movable shaft contacts another sealing cover. A second air passage is formed between the through hole, the guide rib and the movable shaft, and the second air passage is connected to the connecting hole.

[0015] Furthermore, an exhaust port is provided on the left side of the air inlet. The exhaust port is not connected to the air inlet, but is connected to the through hole on the same side. The exhaust port is provided inside the mounting bracket and below the air inlet, the through hole and the exhaust port.

[0016] Furthermore, the two ends of the through cavity are respectively connected to the through holes on both sides, and a positioning post is integrally formed in the middle of the end of the plug away from the movable shaft, and the positioning post contacts the inside of the first U-shaped groove.

[0017] The beneficial effects of this utility model are:

[0018] This invention utilizes a mounting bracket with coils wound around both ends. A transmission and sealing mechanism are installed within the through holes at both ends of the bracket, thus forming two solenoid valve structures. The top center of the mounting bracket has two connecting holes and an air inlet. When the solenoid valve structure is energized, a passage is formed, allowing air to be inflated into the air bags at the two connecting holes. Therefore, if one solenoid valve structure is damaged, the operation of the other solenoid valve structure is not affected. Furthermore, the mounting fixing position, mounting groove, and frame facilitate quick and easy installation of the solenoid valve, reducing subsequent quality control and maintenance costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0023] Figure 4 This is a top view of the structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of another model of this utility model;

[0026] Figure 7This is a cross-sectional structural diagram of another model of this utility model.

[0027] The markings in the diagram are as follows: 1. Mounting bracket; 2. Slot; 3. Winding groove; 4. Coil; 5. Conductive post; 6. Frame; 7. First U-shaped groove; 8. Second U-shaped groove; 9. Through hole; 10. Transmission mechanism; 11. Movable shaft; 12. Sealing cap; 13. Plug; 14. Sealing ring; 15. Mounting cavity; 16. Spring; 17. First air passage; 18. Connecting hole; 19. Mounting groove; 20. Raised ring; 21. Exhaust port; 22. Through cavity; 23. Positioning post. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations. Example 1

[0032] Please see Figures 1-5As shown, the dual-head solenoid valve includes a mounting bracket 1. Both ends of the mounting bracket 1 have winding grooves 3 at their center. A coil 4 is fitted around the outer side of each winding groove 3. The top center of the mounting bracket 1 has an air inlet, with connecting holes 18 on both sides. A first air passage 17, communicating with the air inlet, is integrally formed in the center of the mounting bracket 1 on the side closest to the winding grooves 3. The bottom center of the mounting bracket 1 has a mounting groove 19. Both ends of the mounting bracket 1 have through holes 9, with the inner diameter of the through holes 9 being larger than the diameter of the first air passage 17. A transmission mechanism 10 is provided inside the through holes 9 on both sides, with the ends close to each other, and a sealing mechanism is provided inside the through holes 9 on both sides, with the ends far apart. Two... The solenoid valve structure can energize two coils 4. The energized coils 4 generate magnetization, driving the corresponding transmission mechanism 10 to move in opposite directions and contact the sealing mechanism on the same side. This allows gas to flow through the central air inlet into the first air passages 17 on both sides and the connecting holes 18 on both sides, ultimately filling the gas receiving bag, which is connected to the two connecting holes 18. When one of the solenoid valve structures is damaged due to high-pressure gas, i.e., it is not energized, the movable shaft 11 is normally closed, always blocking the first air passage 17 on the same side. At this time, the other solenoid valve structure can continue to operate without affecting normal use. Simultaneously, if... Figure 3 As shown, the mounting slot 19 can be two square slots or one circular slot, and the two can be designed and manufactured according to the needs, so that the double-headed solenoid valve can be installed flexibly.

[0033] Specifically, such as Figure 1 and Figure 5 As shown, the mounting bracket 1 has slots in the middle of the front and rear sides at both ends. Conductive posts 5 are fixedly installed inside the slots, and the top of the conductive posts 5 is electrically connected to the coil 4. By connecting the bottom of the conductive posts 5 to an external power source, the coil 4 can be energized through the conductive posts 5, thereby causing the coil 4 to generate magnetization. The mounting bracket 1 has arc-shaped fixing positions for installation in the middle of the front and rear sides.

[0034] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the mounting bracket 1 has slots 2 at both the front and rear ends near the winding groove 3 in the middle. The bottom of each of the two coils 4 has a U-shaped frame 6. The middle of each end of the frame 6 has a first U-shaped groove 7 and a second U-shaped groove 8 respectively. One end of the frame 6 is engaged with the inside of the slot 2 through the second U-shaped groove 8, and the other end of the frame 6 is engaged with the outside of the mounting bracket 1 through the first U-shaped groove 7. The center of the first U-shaped groove 7 coincides with the center of the through hole 9. The slots 2 can engage the two frames 6 with the bottom of the mounting bracket 1. The first U-shaped groove 7 and the second U-shaped groove 8 can cooperate at both ends of the mounting bracket 1 to ensure the stability of the installation. Both ends of the frame 6 and on both sides of the first U-shaped groove 7 and the second U-shaped groove 8 are provided with interference fit points, which are easy to assemble and fix, further ensuring the stability of the installation.

[0035] Specifically, such as Figure 3 and Figure 5 As shown, both transmission mechanisms 10 include a movable shaft 11, and both ends of the movable shaft 11 are provided with mating grooves. A sealing cover 12 is fixedly installed inside the mating groove. The coil 4, after being energized, can drive the movable shaft 11 to move away from the first air passage 17 in the through hole 9 and contact the sealing mechanism, thereby connecting the air inlet, the first air passage 17 and the connecting hole 18, so that air can be filled into the air receiving bags on both sides.

[0036] Specifically, such as Figure 3 As shown, multiple guide ribs are integrally formed on the inner wall of the through hole 9 at a position corresponding to the movable shaft 11. The multiple guide ribs are arranged in a ring array about the center of the through hole 9. The outer wall of the movable shaft 11 is slidably connected to the guide ribs. One of the sealing caps 12 contacts the first air passage 17. The guide ribs can limit and guide the movable shaft 11 while separating the movable shaft 11 from the through hole 9. At the same time, the rubber sealing cap 12 can greatly reduce the noise generated between the movable shaft 11 and the mounting bracket 1 during movement and improve the reliability of the seal.

[0037] Specifically, such as Figure 1 , Figure 3 and Figure 5As shown, the two sealing mechanisms include a plug 13, which is installed inside the through hole 9 and located on one side of the movable shaft 11. A raised ring 20 is integrally formed at the center of the end of the plug 13 away from the movable shaft 11. The raised ring 20 contacts the interior of the first U-shaped groove 7. A buckle is fixedly installed on the outer surface of the plug 13 near the raised ring 20, preventing the plug 13 from loosening due to the cooperation of the buckle and the raised ring 20. A mounting cavity 15 is provided at the center of the end of the plug 13 near the movable shaft 11. A spring 16 is fixedly connected inside the mounting cavity 15, and the other end of the spring 16 contacts another door sealing cover 12. A vent hole is provided in the center of the raised ring 20, and the vent hole communicates with the mounting cavity 15. An annular groove is provided on the outer side of the middle of the outer side of the plug 13. A sealing ring 14, which contacts the inner wall of the through hole 9, is fitted inside the annular groove. The plug 13 is located near the movable shaft 11. One end of 1 contacts another sealing cap 12; the vent hole, mounting cavity 15 and connecting hole 18 in the plug 13 are connected, allowing gas to flow between them; when the coil 4 is not energized and under the action of the spring 16, the movable shaft 11 can move to the first air passage 17 on the same side and block the first air passage 17 through the sealing cap 12. At this time, the air in the air receiving bag is discharged to the outside through the connecting hole 18, through hole 9, mounting cavity 15 and vent hole on the same side, so that the air receiving bag is emptied of air; when the coil 4 is energized, it drives the movable shaft 11 to move to the mounting cavity 15 and blocks the mounting cavity 15 through the sealing cap 12 on the same side, while compressing the spring 16, so that the channel between the vent hole and the connecting hole 18 is cut off. At this time, the middle air inlet, the two first air passages 17, the two through holes 9 and the two connecting holes 18 form a passage and can inflate the two air receiving bags. Example 2

[0038] The difference between this embodiment and Embodiment 1 is that, Figure 6 and Figure 7As shown, an exhaust port 21 is provided on the left side of the air inlet. The exhaust port 21 is not connected to the air inlet, but is connected to the through hole 9 on the same side. A through cavity 22 is provided inside the exhaust port 21 mounting bracket 1 and below the air inlet, the connecting hole 18, and the exhaust port 21. The two ends of the through cavity 22 are connected to the through holes 9 on both sides respectively. A positioning post 23 is integrally formed in the middle of the end of the plug 13 away from the movable shaft 11. The positioning post 23 contacts the inside of the first U-shaped groove 7. The connecting hole 18 is connected to the external air receiving bag, and the middle... The air inlet is connected to an external air pump. When the right coil 4 is connected to the power supply through the conductive post 5, the right coil 4 and the right movable shaft 11 generate a magnetic field, driving the movable shaft 11 to move to the right and compress the spring 16. At this time, the left end of the right movable shaft 11 disengages from the right first air passage 17, connecting the middle air inlet, the right first air passage 17, the right through hole 9, and the connecting hole 18 to form a passage, thus enabling the air bag to be inflated. When the right coil 4 is de-energized, it loses its magnetic field effect, and under the action of the spring 16... The lowering of the movable shaft 11 resets the position, blocking the first air passage 17 on the right side. At this time, the gas in the air bag enters the through hole 9 on the right side and the through cavity 22 through the connecting hole 18, then enters the through hole 9 on the left side. When the coil 4 on the left side is not energized, the movable shaft 11 on the left side, under the action of the spring 16, always blocks the first air passage 17 on the left side, preventing the air discharged from the air bag from escaping. Conversely, when the coil 4 on the left side is energized through the conductive post 5 on the left side, the coil 4 is energized and generates a current through the movable shaft 11 on the left side. The magnetic field causes the movable shaft 11 on the left to move to the left and compress the spring 16. At this time, the first air passage 17 on the left is connected to the through hole 9 on the left, thereby connecting the through cavity 22, the through hole 9 on the left, the first air passage 17 on the left and the exhaust port 21 to form a passage. At this time, the air in the air bag on the right is discharged. In summary, when the coil 4 on the left is de-energized and the coil 4 on the right is energized, the air bag is inflated; when the coil 4 on the right is de-energized and the coil 4 on the left is energized, the air bag is deflated.

[0039] In summary, compared with the prior art, this seated solenoid valve has at least the following beneficial effects: By setting up a mounting bracket 1, and winding coils 4 at both ends of the mounting bracket 1, and setting a transmission mechanism 10 and a sealing mechanism in the through holes 9 inside both ends of the mounting bracket 1, two solenoid valve structures are formed. The top center of the mounting bracket 1 is provided with two connecting holes 18 and an air inlet in the middle. When the solenoid valve structure is energized, a passage is formed, thereby inflating the air bag on the connecting hole 18. Thus, when one solenoid valve structure is damaged, the other solenoid valve structure can be connected without affecting normal use.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A double-headed solenoid valve characterized by, The mounting bracket (1) includes a winding groove (3) at the middle of both ends of the mounting bracket (1), a coil (4) is sleeved on the outside of the winding groove (3), an air inlet is provided at the middle of the top of the mounting bracket (1), and a connecting hole (18) is provided on both sides of the air inlet. A first air passage (17) connected to the air inlet is integrally formed in the middle of the middle of the mounting bracket (1) and the middle of the side near the winding groove (3). A mounting groove (19) is provided at the middle of the bottom end of the mounting bracket (1). A through hole (9) is provided at both ends of the mounting bracket (1), and the inner diameter of the through hole (9) is larger than the diameter of the first air passage (17). A transmission mechanism (10) is provided in the interior of the through holes (9) on both sides and the end that is close to each other. A sealing mechanism is provided in the interior of the through holes (9) on both sides and the end that is far away from each other.

2. The double-headed solenoid valve according to claim 1, characterized by The mounting bracket (1) has slots at the center of both the front and rear sides at both ends. A conductive post (5) is fixedly installed inside the slot, and the top of the conductive post (5) is electrically connected to the coil (4).

3. The double-headed solenoid valve according to claim 2, wherein The mounting bracket (1) has slots (2) at both the front and rear ends near the winding groove (3) in the middle. The bottom of the two coils (4) is provided with a U-shaped frame (6). The middle of the two ends of the frame (6) is provided with a first U-shaped groove (7) and a second U-shaped groove (8).

4. The double-headed solenoid valve according to claim 3, wherein One end of the frame (6) is engaged with the inside of the slot (2) through the second U-shaped groove (8), and the other end of the frame (6) is engaged with the outside of the mounting bracket (1) through the first U-shaped groove (7), and the center of the first U-shaped groove (7) coincides with the center of the through hole (9).

5. The double-headed solenoid valve according to claim 4, wherein Both of the transmission mechanisms (10) include a movable shaft (11), and both ends of the movable shaft (11) are provided with mating grooves, and a sealing cover (12) is fixedly installed inside the mating groove.

6. The double-headed solenoid valve according to claim 5, wherein The inner wall of the through hole (9) is integrally formed with multiple guide ribs at a position corresponding to the movable shaft (11). The multiple guide ribs are arranged in a ring array about the center of the through hole (9). The outer wall of the movable shaft (11) is slidably connected to the guide ribs. One of the sealing caps (12) is in contact with the first air passage (17).

7. The dual-headed solenoid valve according to claim 6, characterized in that, The two sealing mechanisms include a plug (13), which is installed inside the through hole (9) and located on one side of the movable shaft (11). A convex ring (20) is integrally formed at the middle of the end of the plug (13) away from the movable shaft (11). The convex ring (20) contacts the inside of the first U-shaped groove (7). An installation cavity (15) is provided at the middle of the end of the plug (13) near the movable shaft (11). A spring (16) is fixedly connected inside the installation cavity (15). The other end of the spring (16) contacts another door sealing cover (12). An exhaust hole is provided in the middle of the convex ring (20), and the exhaust hole is connected to the installation cavity (15).

8. The double-headed solenoid valve according to claim 7, characterized in that The plug (13) has an annular groove on the outer side of the middle part. A sealing ring (14) that contacts the inner wall of the through hole (9) is sleeved inside the annular groove. One end of the plug (13) near the movable shaft (11) contacts another sealing cover (12). A second air passage is formed between the through hole (9), the guide rib and the movable shaft (11). The second air passage is connected to the connecting hole (18).

9. The double-headed solenoid valve according to claim 8, characterized in that An exhaust port (21) is provided on the left side of the air inlet. The exhaust port (21) is not connected to the air inlet. The exhaust port (21) is connected to the through hole (9) on the same side. The exhaust port (21) is located inside the mounting bracket (1) and below the air inlet, the through hole (18) and the exhaust port (21) and has a through cavity (22).

10. The double-headed solenoid valve according to claim 9, wherein The two ends of the through cavity (22) are connected to the through holes (9) on both sides respectively. The end of the plug (13) away from the movable shaft (11) is integrally formed with a positioning post (23), and the positioning post (23) contacts the inside of the first U-shaped groove (7).

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