High-frequency response solenoid valve

Abstract

The present invention relates to the technical field of solenoid valves, and specifically relates to a high-frequency response solenoid valve, which includes a valve body and a stationary iron core, a guide rod, and a moving iron core arranged inside the valve body; a through hole is provided on the stationary iron core, and a spiral track is provided on the inner wall of the through hole, and a heat dissipation component is provided on the top of the valve body. In the present invention, when the moving iron core rotates, it disturbs the air, which can enhance the air convection in the valve body, improve the heat dissipation conditions, reduce the performance attenuation of the solenoid valve caused by overheating, reduce the local high-temperature area, and improve the overall heat dissipation efficiency. At the same time, the movement of the moving iron core drives the movement of the transmission part, so that the cooling water forms a continuous flow in the heat dissipation component, thereby realizing efficient heat dissipation without additionally increasing an external power source.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and specifically relates to a high-frequency response solenoid valve. Background Art

[0002] High-frequency response solenoid valves are widely used in fields such as aerospace, precision manufacturing, and new energy vehicles. Their core function is to achieve rapid on / off or flow regulation of fluid media through the high-frequency reciprocating motion of the moving iron core. However, during the high-frequency movement of the moving iron core, a large amount of heat is generated due to electromagnetic eddy current loss, mechanical friction, and fluid resistance. Experimental data shows that after the traditional solenoid valve continuously operates for 30 minutes under the condition of 100 Hz, the temperature of the moving iron core can reach above 120 °C, resulting in accelerated aging of the coil insulation, extended response time, and seriously affecting the system control accuracy.

[0003] In the prior art, the mechanical movement of the moving iron core and the heat dissipation system are independent of each other and do not form a collaborative optimization. The traditional guiding structure does not involve the integrated design of the heat dissipation system, and the liquid cooling scheme requires external power to drive the circulation, which does not match the high-frequency movement characteristics. Summary of the Invention

[0004] In view of the above problems, a high-frequency response solenoid valve is provided. When the moving iron core rotates, it disturbs the air, which can enhance the air convection inside the valve body, improve the heat dissipation conditions, reduce the performance attenuation of the solenoid valve caused by overheating, reduce the local high-temperature area, improve the overall heat dissipation efficiency. At the same time, the movement of the moving iron core drives the movement of the transmission part, so as to realize the continuous flow of cooling water in the heat dissipation component, thereby achieving efficient heat dissipation without additionally increasing an external power source.

[0005] To solve the problems of the prior art, the present invention provides a high-frequency response solenoid valve, which includes a valve body and a stationary iron core, a guide rod, and a moving iron core arranged inside the valve body; a through hole extending in the vertical direction is provided in the center of the stationary iron core, and the guide rod is slidably sleeved in the through hole; a spiral track is provided on the inner wall of the through hole, and this spiral track is used to drive the guide rod to rotate around its own axis when the guide rod slides; the moving iron core is fixedly connected to the top of the guide rod and moves synchronously with the guide rod; a heat dissipation component is provided at the top of the valve body, the heat dissipation component is sleeved outside the moving iron core, and the inside of the heat dissipation component is filled with cooling water for cooling the moving iron core; a transmission part is provided on the heat dissipation component, and the transmission part is in transmission connection with the moving iron core.

[0006] Preferably, a plurality of spiral grooves are evenly distributed on the surface of the moving iron core, and the plurality of spiral grooves are all arranged on the outer surface of the moving iron core along the axial direction of the guide rod and at equal intervals in a surrounding manner.

[0007] Preferably, the heat dissipation component includes a cooling cavity fixedly connected to the top of the valve body, and a limiting sleeve for restricting the movement range of the moving iron core is provided below the cooling cavity.

[0008] Preferably, the heat dissipation component further includes a heat dissipation pipe spirally sleeved on the outer wall of the limiting sleeve, and the heat dissipation pipe is communicated with the cooling cavity.

[0009] Preferably, one end of the heat dissipation pipe is communicated with the cooling cavity, and the other end is connected with a return pipe communicated with the cooling cavity. One-way valves are arranged on both the heat dissipation pipe and the return pipe, so that when the transmission member is in driving connection with the moving iron core, the cooling water can be driven to circulate between the heat dissipation pipe and the return pipe along a set path.

[0010] Preferably, a first chamber and a second chamber which are mirror-symmetric are arranged in the cooling cavity. There are two heat dissipation pipes and two transmission members. The two heat dissipation pipes are respectively arranged below the first chamber and the second chamber, and the two transmission members are respectively arranged on the first chamber and the second chamber, and both the two transmission members are in driving connection with the moving iron core.

[0011] Preferably, the transmission member is slidably arranged in the heat dissipation component. A connecting rod extending in the horizontal direction is arranged on the transmission member, and a first elastic member is arranged on the connecting rod. Two ends of the first elastic member are respectively fixedly connected with the transmission member and the heat dissipation component; a conical block is fixedly connected to the top of the moving iron core, and the conical block can drive the connecting rod to move horizontally when the moving iron core moves, so as to drive the transmission member to move synchronously.

[0012] Preferably, two spiral tracks around its axis are arranged on the inner wall of the through hole, and two connecting heads matching the spiral tracks are arranged on the guide rod.

[0013] Preferably, a heat dissipation grille for assisting heat dissipation is arranged on the top of the valve body.

[0014] Preferably, a valve core connected to the guide rod is arranged at the bottom of the guide rod, the guide rod is rotatably arranged on the valve core, and a second elastic member connected to the valve body is arranged on the valve core.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. By arranging spiral tracks on the inner wall of the through hole in the present invention, the spiral lead angle of the spiral tracks forces the guide rod to rotate synchronously around its own axis while moving along with the moving iron core. Thus, the compound movement of the moving iron core sliding linearly and rotating synchronously with the guide rod is realized. By disturbing the air when the moving iron core rotates, the air convection in the valve body can be enhanced, the heat dissipation condition can be improved, the performance attenuation of the solenoid valve caused by overheating can be reduced, the local high-temperature area can be reduced, and the overall heat dissipation efficiency can be improved.

[0017] 2. The linear motion of the moving iron core will also drive the movement of the transmission part located at the top of the valve body. By driving the transmission part in the heat dissipation component, the mechanical energy of the moving iron core is converted into the power of the liquid cooling cycle, pushing the cooling water to flow in the heat dissipation component. Utilizing the mechanical energy of the moving iron core, it is converted into the circulating power of the cooling water through the transmission part, enabling the cooling water to form a continuous flow in the heat dissipation component, thereby achieving efficient heat dissipation without additionally increasing an external power source.

[0018] 3. Through the setting of the limit sleeve in the present invention, the movement range of the moving iron core is ensured to be limited within a reasonable stroke range. The structure of the spiral heat dissipation tube can form a turbulent flow effect when the cooling water flows, promoting more uniform heat transfer, enabling the cooling water to absorb and carry away heat more fully, and improving the overall heat dissipation capacity. With the setting of the return pipe and the one-way valve,

[0019] it is ensured that the cooling water always maintains a one-way circulating flow during the movement of the moving iron core, avoiding the reverse flow phenomenon caused by pressure fluctuations or external interference, ensuring the stable operation of the cooling system, thereby improving the heat exchange efficiency and achieving efficient heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of a high-frequency response solenoid valve.

[0021] Figure 2 It is a cross-sectional structure schematic diagram of a high-frequency response solenoid valve.

[0022] Figure 3 It is a three-dimensional cross-sectional structure schematic diagram of a high-frequency response solenoid valve.

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the heat dissipation component and the static iron core in a high-frequency response solenoid valve.

[0024] Figure 5 It is a three-dimensional cross-sectional structure schematic diagram of the top of the valve body in a high-frequency response solenoid valve.

[0025] Figure 6 It is a three-dimensional cross-sectional structure schematic diagram of the heat dissipation component and the static iron core in a high-frequency response solenoid valve.

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the moving iron core and the guide rod in a high-frequency response solenoid valve.

[0027] Figure 8 It is an exploded view of the guide rod and the static iron core in a high-frequency response solenoid valve.

[0028] Figure 9 It is an exploded view of the heat dissipation component in a high-frequency response solenoid valve.

[0029] Figure 10It is a three-dimensional structural schematic diagram of a limit sleeve, a heat dissipation pipe and a return pipe in a high-frequency response solenoid valve.

[0030] Figure 11 It is a top-view sectional structural schematic diagram of a cooling cavity in a high-frequency response solenoid valve.

[0031] The reference numerals in the figure are:

[0032] 1. Valve body; 11. Static iron core; 111. Through hole; 1111. Spiral track; 12. Heat dissipation assembly; 121. Transmission part; 1211. Connecting rod; 1212. First elastic part; 122. Cooling cavity; 1221. Limit sleeve; 1222. First chamber; 1223. Second chamber; 123. Heat dissipation pipe; 124. Return pipe; 13. Heat dissipation grille; 14. Spool; 141. Second elastic part; 2. Moving iron core; 21. Guide rod; 211. Connector; 22. Spiral groove; 23. Tapered block. Specific implementation manner

[0033] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0034] As Figures 1 to 8 shown: A high-frequency response solenoid valve includes a valve body 1 and a static iron core 11, a guide rod 21 and a moving iron core 2 arranged inside the valve body 1; a through hole 111 extending in the vertical direction is provided in the center of the static iron core 11, and the guide rod 21 is slidably sleeved in the through hole 111; a spiral track 1111 is provided on the inner wall of the through hole 111, and the spiral track 1111 is used to drive the guide rod 21 to rotate around its own axis when the guide rod 21 slides; the moving iron core 2 is fixedly connected to the top of the guide rod 21 and moves synchronously with the guide rod 21; a heat dissipation assembly 12 is provided at the top of the valve body 1, the heat dissipation assembly 12 is sleeved outside the moving iron core 2, and the inside of the heat dissipation assembly 12 is filled with cooling water for cooling the moving iron core 2; a transmission part 121 is provided on the heat dissipation assembly 12, and the transmission part 121 is in transmission connection with the moving iron core 2.

[0035] When the solenoid valve coil is energized, the static iron core 11 generates a magnetic field to attract the moving iron core 2 to move; after power-off, the moving iron core 2 resets under the action of spring force or its own weight. During this process, the guide rod 21 will move along the through hole 111 of the static iron core 11. Since the spiral track 1111 is provided on the inner wall of the through hole 111, the spiral lead angle of the spiral track 1111 forces the guide rod 21 to rotate around its own axis synchronously while moving with the moving iron core 2.

[0036] Thereby, the moving iron core 2 realizes the composite motion of linear sliding and rotation synchronously with the guide rod 21. By disturbing the air when the moving iron core 2 rotates, the air convection in the valve body 1 can be enhanced, the heat dissipation conditions can be improved, the performance degradation of the solenoid valve caused by overheating can be reduced, the local high temperature area can be reduced, and the overall heat dissipation efficiency can be improved.

[0037] The linear motion of the moving iron core 2 will also drive the transmission member 121 located on the top of the valve body 1 to move. By driving the transmission member 121 in the heat dissipation component 12, the mechanical energy of the moving iron core 2 is converted into liquid cooling circulation power, thereby promoting the cooling water to flow in the heat dissipation component 12. The transmission frame can be set to an impeller or a piston, and the impeller or the piston can accelerate the flow of cooling water in the heat dissipation component 12 to further enhance the cooling water disturbance, improve the heat exchange efficiency, and effectively prevent the moving iron core 2 from affecting the response speed or working stability due to high temperature.

[0038] In the application scenario of a high-frequency response solenoid valve, the moving iron core 2 needs to perform high-frequency reciprocating motion, and this continuous mechanical motion usually causes the temperature inside the valve body 1 to rise, affecting the response speed and service life of the solenoid valve. In order to effectively solve this problem, the present invention cleverly utilizes the mechanical energy of the moving iron core 2 and converts it into circulating power of cooling water through the transmission member 121, so that the cooling water forms a continuous flow in the heat dissipation component 12, thereby achieving efficient heat dissipation without adding an additional external power source.

[0039] This energy recovery and reuse mechanism not only improves the overall energy efficiency of the solenoid valve system, but also effectively enhances the heat dissipation effect of the moving iron core 2 through the dynamic circulation of cooling water, preventing performance degradation caused by temperature accumulation during high-frequency movement. In addition, the continuous flow of cooling water can further reduce thermal stress and improve the durability of key components of the solenoid valve, so that it can still maintain stable and reliable performance under long-term, high-frequency working environments.

[0040] Compared with the traditional high-frequency response solenoid valve that relies on an external cooling system or passive heat dissipation, the present invention drives the cooling water circulation through the mechanical energy of the moving iron core 2, thereby realizing the combination of active heat dissipation and efficient energy utilization.

[0041] like Figures 2 to 9 As shown, a plurality of spiral grooves 22 are evenly distributed on the surface of the moving iron core 2. The plurality of spiral grooves 22 are arranged on the outer surface of the moving iron core 2 along the axial direction of the guide rod 21 and in an equidistant and surrounding manner.

[0042] When the solenoid valve coil is energized, the static iron core 11 generates a magnetic field to attract the moving iron core 2, causing it to move linearly along the axis of the guide rod 21. During this process, due to the action of the inner wall spiral track 1111 of the through hole 111 on the guide rod 21, the guide rod 21 rotates around its own axis while moving, thereby driving the moving iron core 2 fixedly connected thereto to rotate synchronously. Through the setting of the spiral groove 22, the moving iron core 2 forms a disturbed air flow during rotation, causing the air inside the valve body 1 to flow at high speed. This disturbance effect can not only improve the convective heat dissipation ability of the air in the valve cavity, but also reduce the local overheating phenomenon caused by the high-speed reciprocating movement of the moving iron core 2. In addition, the setting of the spiral groove 22 can also reduce the air flow resistance during the movement of the moving iron core 2, improving its response speed and movement stability.

[0043] Good heat dissipation effect can reduce the material aging and performance attenuation caused by temperature accumulation, thereby prolonging the service life of the high-frequency response solenoid valve and improving the overall durability and reliability of the system.

[0044] As Figures 2 to 6 and Figure 9 shown: The heat dissipation component 12 includes a cooling cavity 122 fixedly connected to the top of the valve body 1, and a limiting sleeve 1221 for restricting the movement range of the moving iron core 2 is provided below the cooling cavity 122.

[0045] The limiting sleeve 1221 is fixedly connected to the cooling cavity 122 by thread connection or welding. When the solenoid valve works, the moving iron core 2 reciprocates axially along the guide rod 21 under the action of the electromagnetic force generated by the static iron core 11, and at the same time rotates around its own axis under the action of the spiral track 1111. Due to the high-speed and frequent movement state of the moving iron core 2, heat is inevitably generated on its surface. The cooling cavity 122 is filled with cooling water, which can effectively absorb the heat generated by the moving iron core 2, and then take away the heat through the circulating flow of the cooling water, thus achieving efficient heat dissipation.

[0046] The limiting sleeve 1221 is arranged below the cooling cavity 122 to ensure that the movement range of the moving iron core 2 is limited within a reasonable stroke range, preventing structural damage or performance abnormalities caused by excessive displacement. At the same time, the limiting sleeve 1221 and the cooling cavity 122 are fixed by thread connection or welding. This structure not only ensures the reliable combination between components, but also facilitates later disassembly, maintenance or replacement, improving the maintainability and service life of the solenoid valve.

[0047] As Figures 2 to 6 , Figure 9 and Figure 10 shown: The heat dissipation component 12 further includes a heat dissipation pipe 123 spirally sleeved on the outer wall of the limiting sleeve 1221, and the heat dissipation pipe 123 is communicated with the cooling cavity 122.

[0048] The heat of the moving iron core 2 can be directly absorbed by the cooling water filled inside the cooling cavity 122, and heat exchange is carried out through the circulating flow of the cooling water. The newly added spiral heat dissipation tube 123 is sleeved on the outer wall of the limit sleeve 1221 and is communicated with the cooling cavity 122 to form an additional heat dissipation channel. When the cooling water circulates in the cooling cavity 122, it will also flow through the heat dissipation tube 123, increasing the flow path of the cooling water, expanding the heat exchange area at the same time, improving the cooling effect, thereby enhancing the heat dissipation efficiency and further reducing the temperature of the moving iron core 2 and its surrounding components.

[0049] In addition, the structure of the spiral heat dissipation tube 123 can form a turbulent flow effect when the cooling water flows, promoting the more uniform transfer of heat, enabling the cooling water to absorb and carry away heat more fully, and improving the overall heat dissipation capacity.

[0050] The spiral heat dissipation tube 123 is closely wound around the outer wall of the limit sleeve 1221, without occupying extra space, and can make full use of the area around the limit sleeve 1221 for heat exchange, which is applicable to solenoid valves with high integration.

[0051] Such as Figures 2 to 6 、 Figure 9 and Figure 10 As shown: One end of the heat dissipation tube 123 is communicated with the cooling cavity 122, and the other end is connected with a return pipe 124 communicated with the cooling cavity 122. Check valves are provided on both the heat dissipation tube 123 and the return pipe 124, so that when the transmission part 121 is in transmission connection with the moving iron core 2, it can drive the cooling water to circulate between the heat dissipation tube 123 and the return pipe 124 along the set path.

[0052] After the cooling water enters the spiral heat dissipation tube 123 from the cooling cavity 122, it flows along the spiral path under the turbulent flow effect generated by the high-speed movement of the moving iron core 2, absorbing the heat generated by the moving iron core 2 and its surrounding components. After the cooling water flows through the heat dissipation tube 123, it returns to the top of the cooling cavity 122 through the return pipe 124, and forms a closed circulation system under the action of the check valve to prevent the cooling water from flowing back or having poor flow. The setting of the check valve ensures that the cooling water always maintains a one-way circulation flow when the moving iron core 2 moves, avoiding the reverse flow phenomenon caused by pressure fluctuations or external disturbances, ensuring the stable operation of the cooling system, thereby improving the heat exchange efficiency and achieving efficient heat dissipation.

[0053] Such as Figures 2 to 6 、 Figures 9 to 11 As shown: A first chamber 1222 and a second chamber 1223 which are mirror-symmetrical are arranged in the cooling cavity 122. There are two heat dissipation tubes 123 and two transmission parts 121. The two heat dissipation tubes 123 are respectively arranged below the first chamber 1222 and the second chamber 1223, and the two transmission parts 121 are respectively arranged on the first chamber 1222 and the second chamber 1223, and the two transmission parts 121 are both in transmission connection with the moving iron core 2.

[0054] The movement of the moving iron core 2 will synchronously drive the two transmission members 121 to move, so that the two transmission members 121 can synchronously drive the cooling water in the first chamber 1222 and the second chamber 1223 to flow, forming a bilaterally symmetrical circulating cooling system. The cooling water flows along the independent heat dissipation pipe 123 channels in the first chamber 1222 and the second chamber 1223, respectively, and returns to the top of the cooling chamber 122 through the return pipe 124, forming an efficient heat exchange cycle, so that the cooling water can cover the surface of the moving iron core 2 in a shorter time, improve the heat dissipation capacity, and avoid excessive local temperature.

[0055] The dual heat dissipation pipes 123 are arranged to optimize the flow path of the cooling water, improve the heat dissipation efficiency, and ensure that the solenoid valve can still maintain a stable temperature when working at a high frequency.

[0056] The two transmission members 121 are respectively connected to the moving iron core 2, so that the movement of the moving iron core 2 can evenly drive the cooling water circulation on the left and right sides, reduce the wear of the transmission member 121 caused by uneven force on one side, and improve the stability and life of the system. The dual transmission member 121 structure can also reduce the risk of heat dissipation system failure caused by failure of a single transmission member 121, and improve equipment reliability.

[0057] like Figures 2 to 6 and Figure 9 As shown: the transmission member 121 can be slidably arranged in the heat dissipation assembly 12, and the transmission member 121 is provided with a connecting rod 1211 extending in the horizontal direction, and the connecting rod 1211 is provided with a first elastic member 1212, and the two ends of the first elastic member 1212 are respectively fixedly connected to the transmission member 121 and the heat dissipation assembly 12; the top of the moving iron core 2 is fixedly connected with a conical block 23, and the conical block 23 can drive the connecting rod 1211 to move in the horizontal direction when the moving iron core 2 moves, thereby driving the transmission member 121 to move synchronously.

[0058] When the solenoid valve is energized, the static iron core 11 generates electromagnetic force, causing the moving iron core 2 to move in the vertical direction and rotate around its own axis under the action of the spiral track 1111. The conical block 23 on the top of the moving iron core 2 moves synchronously with the moving iron core 2 and exerts force on the connecting rod 1211, causing the connecting rod 1211 to move in the horizontal direction, thereby driving the transmission member 121 to slide.

[0059] During the sliding process, the transmission member 121 is restricted by the first elastic member 1212 to realize the reciprocating reset function, so that it can always keep linkage with the movement of the moving iron core 2. This movement drives the cooling water inside the heat dissipation component 12 to circulate, and the one-way valve can realize the one-way flow of the cooling water, and an efficient heat exchange path is formed through the heat dissipation pipe 123 and the return pipe 124, ensuring that the moving iron core 2 and its surrounding components can be quickly cooled, thereby improving the heat dissipation efficiency of the solenoid valve.

[0060] The transmission member 121 is preferably arranged in a plate-like structure, which can be mutually matched with the cooling cavity 122. The tapered block 23 is preferably in a conical structure. A ball or a pulley is preferably arranged at one end of the connecting rod 1211 close to the moving iron core 2 to reduce the friction between the tapered block 23 and the end of the connecting rod 1211.

[0061] Through the linkage of the tapered block 23 and the connecting rod 1211, the linear motion of the moving iron core 2 can be effectively converted into the sliding of the transmission member 121, thereby driving the cooling water to circulate and improving the heat dissipation efficiency. The movement of the transmission member 121 enables the cooling water to continuously flow inside the heat dissipation assembly 12, realizing dynamic heat dissipation and avoiding the influence of local overheating on the performance of the solenoid valve. At the same time, the mechanical energy of the moving iron core 2 can be recovered and reused, enabling the cooling water to flow without an additional power source, reducing energy consumption, and improving the overall energy efficiency of the system.

[0062] The setting of the first elastic member 1212 provides buffering when the transmission member 121 slides, reduces the mechanical impact caused by the high-speed movement of the moving iron core 2, and improves the stability and durability of the system. The first elastic member 1212 can also quickly reset the transmission member 121 after the moving iron core 2 stops moving, ensuring the continuity of the cooling water circulation process and improving the reliability of the system.

[0063] As Figures 2 to 8 shown: Two spiral tracks 1111 around its axis are arranged on the inner wall of the through hole 111, and two connection heads 211 mutually matched with the spiral tracks 1111 are arranged on the guide rod 21.

[0064] Since two spiral tracks 1111 are arranged on the inner wall of the through hole 111, and two corresponding matching connection heads 211 are arranged on the guide rod 21, while the guide rod 21 makes a linear slide, the spiral tracks 1111 exert a lateral force on the connection heads 211, causing the guide rod 21 to rotate synchronously around its own axis, thereby driving the moving iron core 2 to perform a rotational motion. Through this double-spiral track 1111 structure, the rotation of the guide rod 21 is more stable and is not prone to deviation or jamming. In addition, the rotational motion can effectively enhance the air convection inside the valve body 1, improve the heat dissipation efficiency, and at the same time optimize the force distribution of the moving iron core 2, reducing the wear caused by uneven unilateral force.

[0065] As Figures 1 to 3 shown: A heat dissipation grille 13 for assisting heat dissipation is arranged on the top of the valve body 1.

[0066] The heat dissipation grille 13 has a plurality of evenly distributed notches to increase the heat dissipation area, promote air flow, improve the heat dissipation efficiency of the solenoid valve, and enable the heat accumulated inside to be diffused to the external environment more quickly. At the same time, with the high-frequency reciprocating movement of the moving iron core 2, the air flow inside the valve body 1 is strengthened, which helps the cooling air to pass through the heat dissipation grille 13 and be discharged, further improving the heat dissipation effect. It is applicable to solenoid valve systems with high-frequency opening and closing, high-temperature environments or continuous operation, ensuring that they can still maintain an efficient and stable working state during long-term use.

[0067] Considering that the valve body 1 is usually in a closed state, in order to prevent dust and moisture from entering and affecting the normal operation of the solenoid valve while improving the heat dissipation effect, the present invention provides a highly breathable dust and waterproof filter screen (not shown in the figure) inside the through hole 111 of the heat dissipation grille 13. This filter screen can effectively block external particulate matter and liquid from entering the inside of the valve body 1, while ensuring the normal circulation of air, thereby improving the environmental adaptability of the solenoid valve without affecting the heat dissipation effect. Combined with the cooling water circulation system, the cooling effect is more balanced, further improving the long-term stability of the system.

[0068] As Figures 1 to 4 and Figure 6 shown: A valve core 14 is provided at the bottom of the guide rod 21 and is connected thereto. The guide rod 21 is rotatably provided on the valve core 14, and a second elastic member 141 connected to the valve body 1 is provided on the valve core 14.

[0069] By rotatably arranging the guide rod 21 on the valve core 14, when the static iron core 11 drives the guide rod 21 to move, this rotational cooperation can enable the valve core 14 to respond more quickly to the movement of the guide rod 21. In the working scenario of a high-frequency response solenoid valve, it is required that the solenoid valve can be quickly opened and closed. The flexible rotational connection between the guide rod 21 and the valve core 14 can effectively reduce the response time and meet the requirements of high-frequency operation.

[0070] Through the arrangement of the second elastic member 141, it can provide a stable reset force for the valve core 14. At the same time, it can play a role in buffering and shock absorption. When the guide rod 21 suddenly stops or changes the direction of movement, the second elastic member 141 can absorb part of the impact force, reducing the collision and wear between the valve core 14 and the valve body 1. This helps to extend the service life of the solenoid valve and reduce the maintenance cost.

[0071] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. High-frequency response solenoid valve, comprising a valve body and a stationary iron core, a guide rod and a moving iron core arranged inside the valve body; characterized in that, A through hole extending in the vertical direction is provided in the center of the static iron core, and the guide rod is slidably sleeved in the through hole; The inner wall of the through hole is provided with a spiral track, which is used to drive the guide rod to rotate around its own axis when the guide rod slides; The moving iron core is fixedly connected to the top of the guide rod and moves synchronously with the guide rod; A heat dissipation component is provided on the top of the valve body. The heat dissipation component is sleeved outside the moving iron core, and the inside of the heat dissipation component is filled with cooling water for cooling the moving iron core; A transmission member is provided on the heat dissipation component, and the transmission member is in transmission connection with the moving iron core; A plurality of spiral grooves are evenly distributed on the surface of the moving iron core, and the plurality of spiral grooves are arranged on the outer surface of the moving iron core along the axial direction of the guide rod and at equal intervals in a surrounding manner.

2. The high-frequency response solenoid valve according to claim 1, wherein The heat dissipation component includes a cooling cavity fixedly connected to the top of the valve body, and a limiting sleeve for restricting the movement range of the moving iron core is provided below the cooling cavity.

3. The high-frequency response solenoid valve according to claim 2, wherein, The heat dissipation component further includes a heat dissipation pipe spirally sleeved on the outer wall of the limiting sleeve, and the heat dissipation pipe is communicated with the cooling cavity.

4. The high-frequency response solenoid valve according to claim 3, characterized in that, One end of the heat dissipation pipe is communicated with the cooling cavity, and the other end is connected with a return pipe communicated with the cooling cavity. One-way valves are provided on both the heat dissipation pipe and the return pipe, so that when the transmission member is in transmission connection with the moving iron core, it can drive the cooling water to circulate between the heat dissipation pipe and the return pipe along a set path.

5. The high-frequency response solenoid valve according to claim 4, characterized in that, A first chamber and a second chamber which are mirror-symmetrical are provided in the cooling cavity. There are two heat dissipation pipes and two transmission members. The two heat dissipation pipes are respectively arranged below the first chamber and the second chamber, and the two transmission members are respectively arranged on the first chamber and the second chamber, and both of the two transmission members are in transmission connection with the moving iron core.

6. The high-frequency response solenoid valve according to claim 1, characterized in that, The transmission member is slidably arranged in the heat dissipation component. A connecting rod extending in the horizontal direction is provided on the transmission member, and a first elastic member is provided on the connecting rod. Both ends of the first elastic member are fixedly connected to the transmission member and the heat dissipation component respectively; a conical block is fixedly connected to the top of the moving iron core, and the conical block can drive the connecting rod to move horizontally when the moving iron core moves, so as to drive the transmission member to move synchronously.

7. The high-frequency response solenoid valve according to claim 1, wherein Two spiral tracks around its axis are provided on the inner wall of the through hole, and two connecting heads matching the spiral tracks are provided on the guide rod.

8. The high-frequency response solenoid valve according to claim 1, wherein A heat dissipation grille for assisting heat dissipation is provided on the top of the valve body.

9. The high-frequency response solenoid valve according to claim 1, characterized in that, A valve core connected to it is provided at the bottom of the guide rod. The guide rod is rotatably arranged on the valve core, and a second elastic member connecting the valve core to the valve body is provided on the valve core.

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