Electromagnetic proportional valve with protection function

Abstract

The utility model relates to the technical field of proportional valves, and discloses an electromagnetic proportional valve with a protection function, which comprises a valve body and a protection shell, the valve body is mounted in the protection shell, and the protection shell is used for protecting the valve body and cooling the valve body. According to the utility model, the fan blades are arranged at the end part of the valve body, and the plurality of heat conduction assemblies are arranged to uniformly cool the outer wall of the valve body, so that the whole valve body is uniformly cooled, and the condition of local overheating is avoided; the heat dissipation speed of the valve body can be increased through the arranged heat conduction assembly, the heat dissipation effect is improved, and the valve body is better protected; the fins are arranged in the heat conduction shell, so that the heat dissipation efficiency of the heat conduction assembly is greatly improved, and the valve body is effectively prevented from being overheated; and through the arrangement of the exhaust holes, rainwater can be effectively prevented from flowing into the device when the device is used in multiple postures, the rainwater is prevented from corroding the valve body, and the good protection effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of proportional valve technology, specifically, to an electromagnetic proportional valve with protective function. Background Technology

[0002] A proportional valve is a valve used to regulate flow and pressure in hydraulic or pneumatic systems. It receives a proportional signal (usually an electrical signal) and converts that signal into valve opening, thereby controlling the flow, pressure, or direction of the medium. Proportional valves are widely used in hydraulic systems requiring precise regulation and control, such as in machinery manufacturing, automation, and aerospace.

[0003] According to the driving method, proportional valves are mainly divided into electromagnetically driven proportional valves, pneumatically driven proportional valves, and mechanically driven proportional valves. Among them, the solenoid valve coil is the key component of the electromagnetically driven proportional valve. It controls the valve state through the magnetic field generated by the current. For proportional valves used in long-term high-load operation or high-temperature environment, thermal protection is required to ensure the normal operation of the proportional valve.

[0004] A Chinese utility model patent with publication number CN221857698U provides a coil protective shell for a solenoid valve. This device can cool the valve body and ensure that it does not overheat. However, because the fan in this device is located on one side of the valve body, the heat distribution of the valve body is uneven when cooling it. The windward side dissipates heat quickly, while the leeward side dissipates heat slowly, resulting in poor overall cooling effect. Furthermore, when used outdoors, rainwater can easily seep into the device and corrode the valve body. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic proportional valve with protective function, which solves the problems of uneven cooling and poor overall cooling effect when the valve body is thermally protected in the prior art.

[0006] This utility model is achieved through the following technical solution: an electromagnetic proportional valve with protective function, comprising a valve body and a protective shell, wherein the valve body is installed in the protective shell, and the protective shell is used to protect the valve body and cool it; the protective shell includes a base, a protective cylinder, a main bolt, a fan bolt, a fan protective cover, a connecting bolt, a motor, and fan blades; a base is respectively installed at both ends of the protective cylinder by the main bolt, and the valve body is installed on one base by the connecting bolt; the fan protective cover is installed on the other base by the fan bolt, and a motor is installed on the fan protective cover, with fan blades installed on the output end of the motor; an exhaust hole is provided on the protective cylinder; multiple heat-conducting components are installed on the protective cylinder, and the heat-conducting components are in contact with the outer wall of the valve body, using the airflow blown in at the fan blades to accelerate the heat dissipation of the valve body.

[0007] To better realize this utility model, the heat-conducting component further includes a heat-conducting shell, on which a heat-conducting silicone sheet is attached. The heat-conducting silicone sheet is in contact with the outer wall of the valve body. The heat-conducting shell is provided with multiple fins, which are arranged in an alternating array to form a gas flow channel.

[0008] To better realize this utility model, a flow collection hopper is further provided at one end of the heat-conducting shell near the fan blade.

[0009] To better realize this utility model, a screw is further installed on the heat-conducting shell, the screw is slidably connected to the protective cylinder, and an adjusting nut is rotatably connected to the protective cylinder, the screw and the adjusting nut being threadedly connected.

[0010] To better realize this utility model, it further includes a filter plate, which is disposed between the fan blade and the base, and the filter plate is mounted on the base by the fan bolts.

[0011] To better realize this utility model, the exhaust port further includes two exhaust arrays symmetrically distributed on the protective cylinder. The exhaust array is composed of multiple exhaust grooves. The exhaust grooves are disposed through the protective cylinder, and the projection of the exhaust grooves in the axial direction of the protective cylinder is not parallel to the radial direction of the protective cylinder at that point; the projection of the exhaust grooves in the radial direction of the protective cylinder is not parallel to the axis of the protective cylinder; the end of the exhaust groove on the inner wall of the protective cylinder is higher than the end on the outer wall of the protective cylinder.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] (1) This utility model sets the fan blades at the end of the valve body and sets multiple heat-conducting components to uniformly cool the outer wall of the valve body, so that the valve body cools down uniformly and there will be no local overheating; and the heat-conducting components can accelerate the heat dissipation speed of the valve body, improve the heat dissipation effect, and better protect the valve body from heat.

[0014] (2) By setting fins in the heat-conducting shell, the heat dissipation efficiency of the heat-conducting component is greatly improved, effectively preventing the valve body from overheating.

[0015] (3) By setting an exhaust hole, this utility model can effectively prevent rainwater from flowing into the interior when the device is used in multiple postures, and prevent rainwater from corroding the valve body, thus providing good protection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a frontal sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a cross-sectional view of the overall structure of this utility model from the left side.

[0019] Figure 4 This is an exploded view of the overall structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the heat-conducting shell and the flow-collecting hopper structure.

[0021] Figure 6 This is a schematic diagram of the gas flow channel.

[0022] Figure 7 This is a schematic diagram of the exhaust channel structure.

[0023] Figure 8 This is a schematic diagram of the longitudinal installation of this utility model.

[0024] Figure 9 This is a schematic diagram of the horizontal installation of this utility model.

[0025] Wherein: 2-Equipment body; 101-Base; 102-Protective cylinder; 103-Main body bolt; 104-Fan bolt; 105-Fan protective cover; 106-Exhaust trough; 107-Connecting bolt; 108-Valve body; 109-Motor; 110-Heat-conducting shell; 111-Heat-conducting silicone sheet; 112-Adjusting nut; 113-Screw; 114-Fan blade; 115-Filter plate; 116-Collecting hopper; 117-Fins. Detailed Implementation

[0026] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] This embodiment provides an electromagnetic proportional valve with protective functions, specifically as follows: Figures 1-4 As shown, it includes a valve body 108 and a protective shell. The valve body 108 is installed in the protective shell, which is used to protect the valve body 108 and cool the valve body 108.

[0030] The protective shell includes a base 101, a protective cylinder 102, a main bolt 103, a fan bolt 104, a fan protective cover 105, a connecting bolt 107, a motor 109, and a fan blade 114. A base 101 is mounted at each end of the protective cylinder 102 via the main bolt 103. The valve body 108 is mounted on one base 101 via the connecting bolt 107. The fan protective cover 105 is mounted on the other base 101 via the fan bolt 104. A motor 109 is mounted on the fan protective cover 105, and a fan blade 114 is mounted on the output end of the motor 109. An exhaust port is provided on the protective cylinder 102. Multiple heat-conducting components are mounted on the protective cylinder 102, and these components are in contact with the outer wall of the valve body 108, utilizing the airflow blown in from the fan blade 114 to accelerate the heat dissipation of the valve body 108.

[0031] During the use of valve body 108, the coil inside valve body 108 heats up, and the heat is transferred to the outer wall of valve body 108 and then to the heat conduction component. When motor 109 drives fan blade 114 to rotate, fan blade 114 pumps external airflow into the valve body 108 and blows it towards the heat conduction component through the hole of fan protective cover 105. At this time, the airflow exchanges heat with valve body 108 and heat conduction component, so that the temperature of valve body 108 will not be too high. Then the airflow is discharged through the exhaust hole on protective cylinder 102.

[0032] By setting the fan blade 114 at the end of the valve body 108 and setting multiple heat-conducting components to uniformly cool the outer wall of the valve body 108, the overall cooling of the valve body 108 is uniform, and there will be no local overheating. In addition, the heat-conducting components can accelerate the heat dissipation speed of the valve body 108 and improve the heat dissipation effect.

[0033] Example 2:

[0034] This embodiment further expands the heat-conducting component based on the above embodiment, specifically as follows: Figures 5-6 As shown, the heat-conducting component includes a heat-conducting shell 110, on which a heat-conducting silicone sheet 111 is attached. The heat-conducting silicone sheet 111 contacts the outer wall of the valve body 108. The heat-conducting shell 110 is provided with a plurality of fins 117, which are arranged in an alternating array to form a gas flow channel.

[0035] Heat from the outer wall of the valve body 108 is transferred to the heat-conducting shell 110 via the thermally conductive silicone pad 111, and then to the fins 117. When airflow is blown in from one end of the heat-conducting shell 110, the airflow passes through the gas flow channel in the heat-conducting shell 110, thereby dissipating heat from all the fins 117, and then flows out from the other end of the heat-conducting shell 110. By setting the fins 117, the heat dissipation efficiency of the heat-conducting components is greatly improved, effectively preventing the valve body 108 from overheating.

[0036] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0037] Example 3:

[0038] This embodiment further extends the above embodiment, specifically as follows: Figure 5 As shown, a flow collecting bucket 116 is provided at one end of the heat-conducting shell 110 near the fan blade 114.

[0039] By setting up the flow collection bucket 116, the airflow blown in at the fan blade 114 can flow into the heat conduction shell 110 more effectively, thereby enhancing the heat dissipation effect.

[0040] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0041] Example 4:

[0042] This embodiment further extends the above embodiment, specifically as follows: Figure 5 As shown, a screw 113 is installed on the heat-conducting shell 110. The screw 113 is slidably connected to the protective cylinder 102. An adjusting nut 112 is rotatably connected to the protective cylinder 102. The screw 113 is threadedly connected to the adjusting nut 112.

[0043] After connecting the valve body 108 to the base 101, manually turn the adjusting nut 112. The adjusting nut 112 causes the screw 113 to move the heat-conducting shell 110 closer to the center, thus bringing the heat-conducting silicone pad 111 close to and tightly against the outer wall of the valve body 108, ensuring unobstructed heat transfer. When it is necessary to remove the valve body 108, first turn the adjusting nut 112 to disperse the multiple heat-conducting shells 110. At this point, the heat-conducting silicone pad 111 is no longer tightly against the valve body 108, meaning the heat-conducting shells 110 no longer clamp the valve body 108, making it easier for personnel to remove the valve body 108 for replacement or maintenance.

[0044] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0045] Example 5:

[0046] This embodiment further extends the above embodiment, specifically as follows: Figure 4As shown, it also includes a filter plate 115, which is disposed between the fan blade 114 and the base 101, and is mounted on the base 101 by the fan bolt 104.

[0047] The filter plate 115 blocks impurities in the external airflow, preventing them from being blown into the protective cylinder 102. During maintenance, only the fan bolt 104 needs to be unscrewed to clean the filter plate 115, without having to unscrew the main bolt 103 to disassemble the base 101 and the protective cylinder 102, which facilitates subsequent maintenance work and improves efficiency.

[0048] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0049] Example 6:

[0050] This embodiment further expands upon the above embodiment by modifying the protective cylinder 102, specifically as follows: Figure 7 As shown, the exhaust port includes two symmetrically distributed exhaust arrays on the protective cylinder 102. The exhaust arrays are composed of multiple exhaust grooves 106. The exhaust grooves 106 penetrate the protective cylinder 102, and the projection of the exhaust groove 106 on the axial direction of the protective cylinder 102 is not parallel to the radial direction of the protective cylinder 102 at that point (i.e., the projection line is between the radial line and the tangent at that point). Furthermore, along the radial projection direction of the protective cylinder 102, the opening profile of the exhaust groove 106 on the inner wall of the protective cylinder 102 does not overlap with the opening profile on the outer wall of the protective cylinder 102. The projection of the exhaust groove 106 on the radial direction of the protective cylinder 102 is not parallel to the axis of the protective cylinder 102. One end of the exhaust groove 106 on the inner wall of the protective cylinder 102 is higher than the end on the outer wall of the protective cylinder 102.

[0051] like Figure 8 As shown, the base 101 is installed on the vertical device body 2, and the motor 109 is at the bottom. At this time, the airflow discharged from the protective cylinder 102 blows from the upper left to the lower right. If water or raindrops drip from above the device, the water will drip onto the exhaust groove 106. Since the end of the exhaust groove 106 on the inner wall of the protective cylinder 102 is higher than the end on the outer wall of the protective cylinder 102, the raindrops will slide down under the action of gravity until they leave the device and will not flow upward into the protective cylinder 102.

[0052] like Figure 9As shown, the base 101 is installed on the horizontal device body 2. The airflow discharged from the protective cylinder 102 blows from the upper right to the lower left. If water or raindrops drip from above the device, the raindrops cannot drip directly into the protective cylinder 102 because the opening contour of the exhaust groove 106 on the inner wall of the protective cylinder 102 does not overlap with the opening contour of the outer wall of the protective cylinder 102. Instead, the water drips onto the exhaust groove 106. Since the end of the exhaust groove 106 on the inner wall of the protective cylinder 102 is higher than the end on the outer wall of the protective cylinder 102, the raindrops will slide down under the action of gravity until they leave the device and will not flow upward into the protective cylinder 102.

[0053] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A protective electromagnetic proportional valve, characterized in that: It includes a valve body (108) and a protective shell. The valve body (108) is installed in the protective shell, which is used to protect the valve body (108) and cool the valve body (108). The protective shell includes a base (101), a protective cylinder (102), a main bolt (103), a fan bolt (104), a fan protective cover (105), a connecting bolt (107), a motor (109), and a fan blade (114). A base (101) is mounted on each end of the protective cylinder (102) via the main bolt (103). The valve body (108) is mounted on one base (101) via the connecting bolt (107). The fan protective cover (105)... The fan is mounted on another base (101) by the fan bolt (104). A motor (109) is mounted on the fan cover (105). A fan blade (114) is mounted on the output end of the motor (109). An exhaust hole is provided on the protective cylinder (102). Multiple heat-conducting components are mounted on the protective cylinder (102). The heat-conducting components are attached to the outer wall of the valve body (108). The airflow blown in from the fan blade (114) accelerates the heat dissipation of the valve body (108).

2. The electromagnetic proportional valve with protective function according to claim 1, characterized in that: The heat-conducting component includes a heat-conducting shell (110), on which a heat-conducting silicone sheet (111) is attached. The heat-conducting silicone sheet (111) is in contact with the outer wall of the valve body (108). The heat-conducting shell (110) is provided with a plurality of fins (117), which are arranged in an alternating array to form a gas flow channel.

3. The electromagnetic proportional valve with protective function according to claim 2, characterized in that: The heat-conducting shell (110) is provided with a flow-collecting bucket (116) at one end near the fan blade (114).

4. The electromagnetic proportional valve with protective function according to claim 3, characterized in that: A screw (113) is installed on the heat-conducting shell (110), the screw (113) is slidably connected to the protective cylinder (102), and an adjusting nut (112) is rotatably connected to the protective cylinder (102). The screw (113) is threadedly connected to the adjusting nut (112).

5. The electromagnetic proportional valve with protective function according to claim 1, characterized in that: It also includes a filter plate (115), which is disposed between the fan blade (114) and the base (101), and the filter plate (115) is mounted on the base (101) by the fan bolt (104).

6. A protective electromagnetic proportional valve according to any one of claims 1-5, characterized in that: The exhaust port includes two exhaust arrays symmetrically distributed on the protective cylinder (102). The exhaust array is composed of multiple exhaust grooves (106). The exhaust grooves (106) are arranged through the protective cylinder (102), and the projection of the exhaust grooves (106) in the axial direction of the protective cylinder (102) is not parallel to the radial direction of the protective cylinder (102) at that point; the projection of the exhaust grooves (106) in the radial direction of the protective cylinder (102) is not parallel to the axis of the protective cylinder (102); the end of the exhaust groove (106) on the inner wall of the protective cylinder (102) is higher than the end on the outer wall of the protective cylinder (102).

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