High-frequency on-off electromagnetic valve structure

Abstract

The invention relates to the technical field of electromagnetic valves, in particular to a high-frequency on-off electromagnetic valve structure which comprises a valve body and a valve element, the valve body is provided with heat dissipation fins connected with the valve element, a heat dissipation shell is arranged on the outer wall of the valve body, and a heat dissipation channel surrounding the valve body is arranged in the heat dissipation shell. The heat dissipation fins extend into the heat dissipation channel, and the outer side of the heat dissipation shell is connected with a first liquid inlet channel and a first liquid outlet channel which are used for circularly taking away heat of the heat dissipation fins. The heat dissipation structure has the following beneficial effects that the additional heat dissipation fins are additionally arranged on the valve element part which is most serious in heating, heat generated at the position of the valve element is transferred into the heat dissipation shell in a heat conduction mode, and cooling liquid can be introduced through the first liquid inlet channel and the first liquid outlet channel in the heat dissipation shell, so that the heat dissipation effect is improved. Heat is taken away after the electromagnetic valve makes contact with the heat dissipation fins, uniform heat dissipation can be achieved through the surrounding heat dissipation channels, and therefore the situation that the overall temperature of the electromagnetic valve is too high is relieved.

Description

Technical Field

[0001] The present application relates to the technical field of solenoid valves, and in particular to a high-frequency switching solenoid valve structure. Background Art

[0002] Solenoid valves are electromagnetically controlled industrial devices, essential automation components for controlling fluids. They are classified as actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow, speed, and other parameters of media. Solenoid valves can be combined with various circuits to achieve desired control, ensuring both precision and flexibility. There are many different types of solenoid valves, each serving different functions within a control system. The most commonly used are check valves, safety valves, directional control valves, and speed control valves.

[0003] Solenoid valves are also frequently used as control components in high-flow pipelines. In some pipelines, solenoid valves frequently perform on-off switching operations. Solenoid valves often use electromagnets as the switching element, controlling the on-off state by energizing the solenoid valve core. However, repeated on-off switching over long periods of time often results in excessive heat accumulation in solenoid valves used in high-flow pipelines. Overheating can significantly impact the performance and service life of solenoid valves. Overheating can degrade the insulation performance of the solenoid valve coil, accelerate aging, and even cause faults such as short circuits and burnout. Summary of the Invention

[0004] In order to improve the heat dissipation effect of a high-frequency on-off solenoid valve, the present application provides a high-frequency on-off solenoid valve structure.

[0005] The present application provides a high-frequency on-off solenoid valve structure, which adopts the following technical solution: a high-frequency on-off solenoid valve structure, including a valve body and a valve core, the valve body having heat dissipation fins connected to the valve core, the outer wall of the valve body is provided with a heat dissipation shell, the heat dissipation shell has a heat dissipation channel surrounding the valve body, the heat dissipation fins extend into the heat dissipation channel, and the outside of the heat dissipation shell is connected to a first liquid inlet channel and a first liquid outlet channel for circulating away the heat of the heat dissipation fins.

[0006] By adopting the above technical solution, additional cooling fins are added to the valve core part where heat is most serious, and the heat generated at the valve core is transferred to the heat dissipation shell by heat conduction. In the heat dissipation shell, through the arrangement of the first liquid inlet channel and the first liquid outlet channel, coolant can be introduced through the above channels, and the heat is taken away after contacting the cooling fins. The surrounding heat dissipation channels can achieve uniform heat dissipation, thereby alleviating the situation where the overall temperature of the solenoid valve is too high.

[0007] Preferably, a heat dissipation cover is provided in the valve body and outside the valve core, and the heat dissipation fins are connected to the heat dissipation cover.

[0008] Preferably, a partition plate is provided in the heat dissipation channel, and the connection points of the first liquid inlet channel and the first liquid outlet channel are respectively located on both sides of the partition plate along the circumferential direction.

[0009] By adopting the above technical solution, the liquid inlet part and the liquid outlet part are separated on both sides of the partition plate, thereby forming a close but separate liquid channel, so that the heat dissipation channel can surround the valve core as completely as possible, thereby improving the heat dissipation effect.

[0010] Preferably, the first liquid inlet channel and the first liquid outlet channel share at least one side wall.

[0011] By adopting the above technical solution, since the coolant temperature in the first liquid inlet channel is lower and the coolant temperature in the first liquid outlet channel is relatively higher, the common side wall between the two can achieve temperature exchange, thereby avoiding the problem of excessive temperature difference between the liquid inlet side and the liquid outlet side.

[0012] Preferably, the heat dissipation fins are evenly distributed in the heat dissipation channel along the circumferential direction.

[0013] Preferably, the heat dissipation shell is provided with a filter device on the radially opposite side of the partition plate, and the filter device is detachably connected to the heat dissipation shell.

[0014] By adopting the above technical solution, during the continuous circulation of the coolant, impurities in the coolant or impurities accumulated in the heat dissipation channel can be filtered out, thereby optimizing the liquid smoothness of the entire heat dissipation channel.

[0015] Preferably, a guide plate is provided in the heat dissipation channel and on the radially opposite side of the partition plate, and a second liquid outlet channel and a second liquid inlet channel are provided outside the heat dissipation shell and on both sides of the guide plate.

[0016] Preferably, the filtering device includes a filter box and a filter element arranged in the filter box, and the coolant passes through the filter element to filter impurities.

[0017] To sum up, the present application includes at least one of the following beneficial technical effects: additional cooling fins are added to the valve core part where heat is most serious, and the heat generated at the valve core is transferred to the heat dissipation shell by heat conduction. In the heat dissipation shell, through the setting of the first liquid inlet channel and the first liquid outlet channel, the coolant can be introduced through the above-mentioned channels, and the heat is taken away after contacting the cooling fins. The surrounding heat dissipation channels can achieve uniform heat dissipation, thereby alleviating the situation where the overall temperature of the solenoid valve is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of Example 1 of the present application; Figure 2is a transverse cross-sectional view of Example 1 of the present application; Figure 3 is a vertical cross-sectional view of Example 1 of the present application; Figure 4 This is a schematic diagram of the connection relationship between the output pipe and the input pipe in Example 1 of the present application; Figure 5 yes Figure 3 A magnified schematic diagram of part A; Figure 6 This is a schematic diagram of the structure of the output tube in Example 2 of the present application.

[0019] Explanation of the accompanying drawings: 100, valve body; 110, heat dissipation cover; 111, valve core; 112, heat dissipation fins; 113, heat dissipation shell; 114, heat dissipation channel; 115, first liquid inlet channel; 116, first liquid outlet channel; 117, partition plate; 118, guide plate; 120, output pipe; 121, second liquid outlet channel; 122, second liquid inlet channel; 123, filter box; 124, filter element; 130, input pipe; 131, first channel; 132, second channel; 133, distribution chamber; 134, reflux chamber; 135, distribution blade; 136, first through hole; 137, second through hole; 140, expansion rubber column; 141, cross bracket; 142, layer plate; 150, opening and closing column; 151, first connecting hole; 152, second connecting hole; 153, connecting shell. DETAILED DESCRIPTION

[0020] The present application is further described in detail below with reference to the accompanying drawings.

[0021] Example 1: Example 1 of the present application discloses a high-frequency on-off solenoid valve structure, referring to Figure 1 、 Figure 2 , including a valve body 100, the valve body 100 has heat dissipation fins 112 connected to the valve core 111, specifically, a heat dissipation cover 110 is installed on the outside of the valve core 111, the heat dissipation cover 110 is made of heat-conducting material, the heat dissipation fins 112 are connected to the heat dissipation cover 110, and a heat dissipation shell 113 is provided on the outer wall of the valve body 100, and the heat dissipation shell 113 has a heat dissipation channel 114 surrounding the valve body 100, the heat dissipation fins 112 extend into the heat dissipation channel 114, and the heat dissipation fins 112 are evenly distributed in the heat dissipation channel 114 along the circumferential direction, and the heat dissipation channel 114 is annular as a whole, and the annular heat dissipation channel 114 can evenly take away the heat of the entire valve core 111.

[0022] The heat sink housing 113 is connected to a first liquid inlet channel 115 and a first liquid outlet channel 116. The first and second liquid inlet channels 115 and 122 are connected to a coolant and a power pump structure, which will not be described in detail here. In this embodiment, oil is used as the coolant. The heat sink fins 112 are arranged parallel to the heat dissipation channel 114. When the coolant flows in a circular pattern within the heat dissipation channel 114, it can dissipate heat in a timely manner.

[0023] The first liquid inlet channel 115 and the first liquid outlet channel 116 share at least one sidewall. In this embodiment, the first liquid inlet channel 115 and the first liquid outlet channel 116 share adjacent sidewalls. A partition plate 117 is also provided within the heat dissipation channel 114. The connection points between the first liquid inlet channel 115 and the first liquid outlet channel 116 are located on either side of the partition plate 117 along the circumferential direction. During liquid inflow, the coolant enters from one side of the heat dissipation channel 114, circumnavigates the heat dissipation channel 114, and then exits through the first liquid outlet channel 116. The partition plate 117 separates the two, enabling effective circumferential cooling.

[0024] At the same time, since the temperature on the liquid inlet side is lower and the temperature on the liquid outlet side is higher, the shared side wall allows the two to exchange heat, so that the temperature on the liquid inlet side increases and the temperature on the liquid outlet side is lower, which can achieve temperature balance and facilitate the cooling of the oil in the liquid outlet part.

[0025] A guide plate 118 is provided in the heat dissipation channel 114 and on the radially opposite side of the partition plate 117. A second liquid outlet channel 121 and a second liquid inlet channel 122 are provided on the outside of the heat dissipation shell 113 and on both sides of the guide plate 118. Specifically, an output pipe 120 is provided on the outer wall of the heat dissipation shell 113. The above-mentioned second liquid outlet channel 121 and second liquid inlet channel 122 are arranged in parallel and spaced apart inside the output pipe 120. A filtering device is provided in the heat dissipation shell 113 and on the radially opposite side of the partition plate 117. The filtering device is detachably connected to the heat dissipation shell 113. The coolant entering the first liquid inlet channel 115 enters the filtering device through the second liquid outlet channel 121 after passing half of the distance. The oil is filtered and partially dissipated at the same time. Then, it returns to the heat dissipation channel 114 through the second liquid inlet channel 122 to form subsequent heat dissipation. The guide plate 118 also realizes a function similar to that of the partition plate 117, separating the two liquid channels in the heat dissipation channel 114.

[0026] Reference Figure 3 、 Figure 4The filtering device includes a filter box 123 and a filter element 124 disposed within the filter box 123. The coolant passes through the filter element 124 to filter impurities. The filter box 123 has an input pipe 130 corresponding to the second liquid outlet channel 121 and the second liquid inlet channel 122. The input pipe 130 has a first channel 131 and a second channel 132. The second liquid outlet channel 121 is inserted into the first channel 131, and the second liquid inlet channel 122 is inserted into the second channel 132.

[0027] Reference Figure 3 、 Figure 5 The filter box 123 is cylindrical in shape. From the center to the outside, it consists of a distribution chamber 133, a filter element 124, and a return chamber 134. The distribution chamber 133 contains spiral distribution blades 135. The inlet pipe 130 extends to the upper side of the distribution chamber 133. The oil in the first channel 131 enters the distribution chamber 133, while the horizontal portion of the second channel 132 is closed. The oil flows in a spiral from top to bottom along the direction of the distribution blades 135. The inner wall of the filter element 124 has a plurality of first through-holes 136. During the movement of the oil, it will flow toward the first through-holes 136 and enter the filter element 124.

[0028] An expansion rubber column 140 is provided in the first through hole 136 and is located at the central axis position of the first through hole 136. There is a gap a between the edge of the expansion rubber column 140 and the inner wall of the first through hole 136. The expansion rubber column 140 is fixed to the inner wall of the first through hole 136 by a cross bracket 141.

[0029] In this embodiment, on-off valves (not shown) are installed within the second liquid outlet channel 121 and the second liquid inlet channel 122. These valves can be used to close the inlet and outlet channels, allowing the filter box 123 to be replaced. In the newly replaced filter box 123, oil enters the cavity and undergoes a draining process. When the oil first contacts the upper portion of the expandable rubber column 140, the expandable rubber column 140 radially expands outward, reducing the gap a. This causes the amount of oil entering the upper filter element 124 to decrease, increasing the tendency for oil to enter the lower portion of the filter element 124. This ensures a more uniform flow of oil throughout the filter element 124. Gradually, the expandable rubber column 140 expands from top to bottom, filling the filter element 124 with oil. At this point, the flow of oil is evenly distributed throughout the filter element 124, ensuring stable filtration. In this embodiment, the expandable rubber column 140 is preferably made of fluororubber (FKM) or high-acrylonitrile-butadiene-acrylonitrile rubber (HNBR).

[0030] In this embodiment, the filter element 124 has a multi-layer structure along the height direction, each layer is separated by a layer plate 142, and the outer wall of the filter element 124 has a second through hole 137. The filtered oil in each layer of the filter element 124 will flow along the layer plate 142 through the second through hole 137 into the reflux chamber 134. The end of the second channel 132 is closed, but the lower side wall of the second channel 132 has an upper end connected to the reflux chamber 134. At this time, the oil will flow back to the heat dissipation channel 114 through the second channel 132.

[0031] Example 2: The difference from Example 1 is that, referring to Figure 6 An opening and closing column 150 is provided in a positionable sliding manner in the output tube 120. There are two structures on both sides of the opening and closing column 150, and only one of the structures is inserted into the output tube 120 at a time. One of the structures is two first connecting holes 151 along the second liquid outlet channel 121 and the second liquid inlet channel 122, and the other structure is a C-shaped second connecting hole 152. The first connecting hole 151 passes through the opening and closing column 150, and the second connecting hole 152 does not pass through to the other side of the opening and closing column 150, forming a direct connection between the second liquid outlet channel 121 and the second liquid inlet channel 122.

[0032] In this embodiment, a connecting housing 153 is mounted on the outer wall of the output tube 120. The opening and closing column 150 is slidably disposed within the connecting housing 153. A driving member is mounted on the connecting housing 153 to enable the opening and closing column 150 to slide. A driving device such as a screw rod or an electric cylinder can be used. The driving member causes the opening and closing column 150 to slide, thereby adjusting the structure within the output tube 120 to achieve different communication states.

[0033] The working principle of Example 2 of the present application is as follows: Under normal circumstances, the first connecting hole 151 is located in the output pipe 120, and the oil normally enters the input pipe 130 through the second liquid outlet channel 121 and returns to the output pipe 120 through the second liquid inlet channel 122. When the filter box 123 needs to be replaced, the opening and closing column 150 is slid to make the second connecting hole 152 located in the output pipe 120. At this time, the oil will directly return to the heat dissipation channel 114, achieving circulation without passing through the filter device. At this time, the filter device can be removed and replaced without shutting down the heat dissipation system and without affecting the heat dissipation effect. After the replacement is completed, the filter device is reinstalled on the output pipe 120. At this time, after the above-mentioned emptying process, the filtering effect is maintained again.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-frequency on-off solenoid valve structure, comprising a valve body (100) and a valve core (111), characterized in that: The valve body (100) has a heat dissipation fin (112) connected to the valve core (111); a heat dissipation shell (113) is provided on the outer wall of the valve body (100); a heat dissipation channel (114) surrounding the valve body (100) is provided in the heat dissipation shell (113); the heat dissipation fin (112) extends into the heat dissipation channel (114); and a first liquid inlet channel (115) and a first liquid outlet channel (116) for circulating and removing heat from the heat dissipation fin (112) are connected to the outer side of the heat dissipation shell (113).

2. The high-frequency on-off solenoid valve structure according to claim 1, characterized in that: A heat dissipation cover (110) is provided inside the valve body (100) and outside the valve core (111), and the heat dissipation fins (112) are connected to the heat dissipation cover (110).

3. The high-frequency on-off solenoid valve structure according to claim 2, characterized in that: A partition plate (117) is provided in the heat dissipation channel (114), and the connection points of the first liquid inlet channel (115) and the first liquid outlet channel (116) are respectively located on both sides of the partition plate (117) along the circumferential direction.

4. The high-frequency on-off solenoid valve structure according to claim 3, characterized in that: The first liquid inlet channel (115) and the first liquid outlet channel (116) share at least one side wall.

5. The high-frequency on-off solenoid valve structure according to claim 4, characterized in that: The heat dissipation fins (112) are evenly distributed in the heat dissipation channel (114) along the circumferential direction.

6. The high-frequency on-off solenoid valve structure according to claim 5, characterized in that: The heat dissipation shell (113) is provided with a filter device on the radially opposite side of the partition plate (117), and the filter device is detachably connected to the heat dissipation shell (113).

7. The high-frequency on-off solenoid valve structure according to claim 6, characterized in that: A guide plate (118) is provided in the heat dissipation channel (114) and on the radially opposite side of the partition plate (117), and a second liquid outlet channel (121) and a second liquid inlet channel (122) are provided outside the heat dissipation shell (113) and on both sides of the guide plate (118).

8. The high-frequency on-off solenoid valve structure according to claim 7, characterized in that: The filtering device comprises a filter box (123) and a filter element (124) arranged in the filter box (123); the coolant passes through the filter element (124) to filter impurities.

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