Solenoid valve structure capable of cooling and dissipating heat
By designing the housing insert cooling parts and heat conductors in the solenoid valve, the ring body and heat sink are used to improve the thermal conductivity effect, the problem of reduced suction due to heat generation of the solenoid coil is solved, and more efficient heat dissipation and prolong the working time of the solenoid valve is achieved. .
Patent Information
- Application Number
- CN202420072890.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-11
AI Technical Summary
When existing solenoid valves work for a long time, the heat generated by the solenoid coil will cause a reduction in suction force. The existing solutions may increase costs only for compromise, and the heat dissipation effect needs to be improved.
Design a solenoid valve structure including a housing, a cooling member, a base, a thermal conductor and an electromagnet. The center of the cooling member is provided with a socket, the housing is inserted in the socket, the inner annular cavity of the cooling member and the outer periphery of the housing In contact, the heat conduction member improves the thermal conductivity through the annular body and the heat sink, and the water flow dissipates heat through the inner cavity of the cooling member.
It effectively expands the heat dissipation area of the solenoid coil, avoids the reduction of suction caused by excessive temperature rise, extends the working time of the solenoid valve without adding additional heat or water.
Smart Images
Figure CN222209176U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve structure capable of cooling and dissipating heat. Background Art
[0002] Solenoid valves are widely used in many household appliances, such as washing machines, water heaters, dishwashers, water purifiers, etc., all of which require solenoid valves to control the on and off of water channels. Although solenoid valve products are mature, there are still certain problems. One of the problems is that when the solenoid valve works for a long time, the solenoid coil is powered on for a long time and heats up, resulting in a decrease in the suction force of the solenoid coil on the suspension iron, which causes the solenoid valve to fail to open normally. Some products solve this problem by increasing the power of the solenoid valve when it is working. This solution will increase certain costs and increase the heat generated by the solenoid valve. Some products reduce the occurrence of this problem by controlling the continuous working time of the solenoid valve. This solution is only a compromise.
[0003] In response to the above problems, the Chinese utility model patent with application number CN202120707587.5 (publication number CN214618102U) discloses "A Solenoid Valve Coil", which includes a cylinder and an upper circular plate and a lower circular plate respectively installed at both ends of the cylinder, a coil is wound on the outer peripheral wall of the cylinder, and a plurality of cooling pipes with coolant are arranged at intervals at the edge between the upper circular plate and the lower circular plate, the cooling pipes are arranged around the cylinder, one end of the cooling pipes is connected to the lower circular plate, and the other end of the cooling pipes is connected to the upper circular plate, and a plurality of heat-conducting rods are arranged at intervals on the outer side wall of the cylinder, one end of the plurality of heat-conducting rods is connected to the cylinder, and the other end of the plurality of heat-conducting rods is connected to the corresponding cooling pipes. This application has the effect of improving the heat dissipation of the solenoid valve coil.
[0004] It can be seen from the drawings of the patent that the heat-conducting rod is only partially in contact with the cylinder, so the contact area is limited and the heat dissipation effect of the coil needs to be further improved. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a solenoid valve structure capable of cooling and dissipating heat, with a large contact area between a cooling member and a shell on which an electromagnetic coil is arranged, in view of the current status of the prior art.
[0006] The utility model solves the above technical problems by adopting the following technical solution: a solenoid valve structure capable of cooling and dissipating heat, comprising:
[0007] A shell, in which an electromagnetic coil is arranged, and the shell is cylindrical;
[0008] A cooling member, used for dissipating heat from the electromagnetic coil in the housing;
[0009] It is characterized in that a socket is provided in the central portion of the cooling element, the shell is inserted in the socket, the cooling element has an annular inner cavity surrounding the outer periphery of the socket, and the cooling element has a water inlet and a water outlet which are fluidically connected to the inner cavity.
[0010] In the above scheme, the solenoid valve structure further includes a base, the bottom of the shell is located outside the socket and is mounted on the base, the base has a water inlet channel, a water outlet channel and a water flow channel, the base is provided with a partition, the partition is provided with a first through hole connecting the water inlet channel and the water flow channel, and a second through hole connecting the water flow channel and the water outlet channel;
[0011] The shell is also provided with an elastic member and an electromagnet that can move up and down relative to the shell. The electromagnet keeps moving downward to block the second through hole under the action of the elastic member, and the electromagnet can move upward to open the second through hole when the electromagnetic coil is energized. This is the structure and working process of a normal electromagnetic valve to realize water flow interruption, which is a prior art and will not be described here.
[0012] Preferably, the water inlet end of the water inlet channel is connected to the water outlet on the cooling element. In this way, no extra water is used, and the electromagnetic coil is cooled by the water flow that needs to be turned on and off by the electromagnetic valve itself, and no extra heat is generated, which greatly prolongs the working time of the electromagnetic valve.
[0013] In order to improve the heat conduction effect on the electromagnetic coil, a heat conducting member is provided on the cooling member adjacent to the insertion hole, and the heat conducting member can conduct the heat of the electromagnetic coil to the cooling member.
[0014] In order to position the heat conducting member, the side wall of the cooling member separating the insertion hole and the inner cavity is called the inner ring wall. The heat conducting member includes an annular body mounted on the inner ring wall. The annular body can be integrally injection molded with the inner ring wall.
[0015] In order to further improve the heat conduction effect of the heat conduction member, the heat conduction member further includes a heat sink disposed on the outer peripheral wall of the annular body, the heat sink extending in the radial direction of the annular body, and the heat sink passing through the inner annular wall of the cooling member and extending into the inner cavity. The heat sink extending into the inner cavity is cooled by the water in the inner cavity, and the heat on the electric heating coil can be further conducted more quickly.
[0016] The heat sink may be welded to the annular body. To facilitate the formation of the heat sink, a portion of the annular body is bent outward to form the heat sink, thereby forming a notch at the location where the heat sink was originally located.
[0017] In order to further improve the heat conduction effect of the heat conducting member, the heat sink has multiple fins and is spaced apart along the axial direction of the annular body to form a group of heat sink fins. The heat sink group has multiple groups and is spaced apart along the circumference of the annular body.
[0018] In the above solution, the cooling element is installed on the base through a connecting structure.
[0019] The connection structure can have a variety of structural forms. The structure is simple. The connection structure includes a plug-in pin and a socket, the pin is arranged at the bottom of the cooling element, and the socket is arranged at the top of the base; or, the connection structure includes a plug-in pin and a socket, the pin is arranged at the top of the base, and the socket is arranged at the bottom of the cooling element.
[0020] Because of the matching mode of the plug column and the socket, the shell may move upward relative to the base, so a support portion is also provided on the top of the shell, and a limiter is provided on the top of the shell, and the support portion is supported on the lower surface of the limiter. The limiter plays a limiting role and can prevent the shell from moving upward.
[0021] Compared with the prior art, the utility model has the following advantages: the utility model is provided with a cooling member, and a shell with an electromagnetic coil inside is inserted into the socket of the cooling member, and water flows through the inner cavity of the cooling member and surrounds the socket, which is equivalent to cooling water surrounding the outer periphery of the shell. The contact area with the shell is large, and the heat dissipation effect of the electromagnetic coil in the shell is good, thereby avoiding excessive temperature rise of the electromagnetic coil and resulting in reduced suction. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0023] Figure 2 for Figure 1 A cross-sectional view of
[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the base;
[0025] Figure 4 for Figure 2 A schematic diagram of the structure of the cooling element in FIG.
[0026] Figure 5 for Figure 2 A schematic diagram of the structure of the cooling member in another direction;
[0027] Figure 6 for Figure 5 A cross-sectional view of
[0028] Figure 7 for Figure 5 A schematic diagram of the structure of the heat conducting member;
[0029] Figure 8 This is a schematic diagram of the structure of the heat conducting component of Example 2 of the utility model. DETAILED DESCRIPTION
[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0031] like Figures 1 to 7 As shown, the solenoid valve structure capable of cooling and dissipating heat in this preferred embodiment includes a housing 1 , a cooling member 2 , a base 3 , a heat conducting member 4 , an electromagnet 5 and an elastic member 51 .
[0032] An electromagnetic coil (not shown in the figure) is arranged in the housing 1. The housing 1 is cylindrical. The electromagnetic coil can be injection-molded in the housing 1. This is a prior art and will not be described in detail here.
[0033] The cooling member 2 is used to dissipate heat for the electromagnetic coil in the shell 1. A socket 21 is provided in the central portion of the cooling member 2. The shell 1 is inserted into the socket 21. The cooling member 2 has an annular inner cavity 22 arranged around the outer periphery of the socket 21. The cooling member 2 has a water inlet 23 and a water outlet 24 which are fluidically connected to the inner cavity 22, which is equivalent to the inner cavity 22 being arranged around the outer periphery of the shell 1. The contact area is large. When water flows into the inner cavity 22, the electromagnetic coil can be cooled, and the heat dissipation effect is good.
[0034] The bottom of the housing 1 is located outside the socket 21 and is fixedly mounted on the base 3, and the cooling element 2 is mounted on the base 3 through a connecting structure. The connecting structure includes a plug-in pin 25 and a socket 30, the plug 25 is arranged at the bottom of the cooling element 2, and the socket 30 is arranged at the top of the base 3. Of course, it is also possible that the plug 25 is arranged at the top of the base 3, and the socket 30 is arranged at the bottom of the cooling element 2.
[0035] Because the plug 25 and the socket 21 cooperate, the cooling element 2 may move upward relative to the base 3, so a support portion 26 is also provided on the top of the cooling element 2, and a stopper 11 is provided on the top of the housing 1, and the support portion 26 is supported on the lower surface of the stopper 11. The stopper 11 plays a role of limiting and can prevent the cooling element 2 from moving upward.
[0036] The base 3 has a water inlet channel 31, a water outlet channel 32 and a water flow channel 33. The base 3 is provided with a partition 34. The partition 34 is provided with a first through hole 341 connecting the water inlet channel 31 and the water flow channel 33, and a second through hole 342 connecting the water flow channel 33 and the water outlet channel 32. The elastic member 51 and the electromagnet 5 are both arranged on the housing 1. The electromagnet 5 can move up and down relative to the housing 1. Under the action of the elastic member 51, the electromagnet 5 keeps moving downward to block the second through hole 342, and the electromagnet 5 can move upward to open the second through hole 342 when the electromagnetic coil is energized. This paragraph describes the structure and working process of a normal solenoid valve to achieve water flow interruption. It is a prior art and will not be repeated here.
[0037] In this embodiment, the water inlet end of the water inlet channel 31 is connected to the water outlet 24 on the cooling element 2. In this way, no additional water is used, and the electromagnetic coil is cooled by the water flow that needs to be turned on and off by the electromagnetic valve itself, and no additional heat is generated, which greatly prolongs the working time of the electromagnetic valve.
[0038] In order to improve the heat conduction effect of the electromagnetic coil, a heat conducting member 4 is provided on the cooling member 2 near the insertion hole 21, and the heat conducting member 4 can conduct the heat of the electromagnetic coil to the cooling member 2. Of course, the heat conducting member 4 may not be provided.
[0039] like Figure 6 , 7 As shown in FIG. 8 , the side wall of the cooling element 2 separating the insertion hole 21 and the inner cavity 22 is called the inner ring wall 27. The heat-conducting element 4 includes an annular body 41 mounted on the inner ring wall 27 and a heat sink 42 arranged on the outer peripheral wall of the annular body 41. The annular body 41 can be integrally injection-molded with the inner ring wall 27. The heat sink 42 extends along the radial direction of the annular body 41. The heat sink 42 passes through the inner ring wall 27 of the cooling element 2 and extends into the inner cavity 22. The heat sink 42 extends into the inner cavity 22 and is cooled by the water in the inner cavity 22, so that the heat on the electric heating coil can be further conducted more quickly.
[0040] In order to facilitate the formation of the heat sink 42 , a portion of the annular body 41 is bent outward to form the heat sink 42 , thereby forming a notch 43 at the location where the heat sink 42 was originally located.
[0041] Example 2
[0042] like Figure 8 As shown, the difference between Example 2 and Example 1 is that: there are multiple heat sinks 42 and they are arranged at intervals along the axial direction of the annular body 41 to form a group of heat sink groups, and there are multiple groups of heat sink groups and they are arranged at intervals along the circumferential direction of the annular body 41, so that the area of the notch 43 on the annular body 41 is smaller than that of Example 1, and the heat conduction effect is good.
[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
[0044] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.
Claims
1. A solenoid valve structure capable of cooling and dissipating heat, comprising A housing (1) having an electromagnetic coil disposed therein, wherein the housing (1) is cylindrical; A cooling element (2) for dissipating heat from the electromagnetic coil in the housing (1); It is characterized in that The cooling element (2) is provided with a plug hole (21) at the central portion thereof, the housing (1) is inserted into the plug hole (21), the cooling element (2) has an annular inner cavity (22) arranged around the outer periphery of the plug hole (21), and the cooling element (2) has a water inlet (23) and a water outlet (24) which are fluidically connected to the inner cavity (22).
2. The solenoid valve structure according to claim 1, Features: The housing (1) further comprises a base (3), wherein the bottom of the housing (1) is located outside the insertion hole (21) and is mounted on the base (3), wherein the base (3) has a water inlet channel (31), a water outlet channel (32) and a water flow channel (33), wherein a partition (34) is provided in the base (3), wherein a first through hole (341) connecting the water inlet channel (31) and the water flow channel (33) and a second through hole (342) connecting the water flow channel (33) and the water outlet channel (32) are provided on the partition (34); The shell (1) is also provided with an elastic member (51) and an electromagnet (5) that can move up and down relative to the shell (1); the electromagnet (5) maintains a tendency to move downward to block the second through hole (342) under the action of the elastic member (51); and the electromagnet (5) can move upward to open the second through hole (342) when the electromagnetic coil is energized.
3. The solenoid valve structure according to claim 2, Features: The water inlet end of the water inlet channel (31) is in communication with the water outlet (24) on the cooling element (2).
4. The solenoid valve structure according to claim 2, Features: The cooling element (2) is mounted on the base (3) via a connecting structure.
5. The solenoid valve structure according to claim 4, Features: The connection structure comprises a plug-in pin (25) and a socket (30) that fit together, wherein the plug-in pin (25) is arranged at the bottom of the cooling element (2), and the socket (30) is arranged at the top of the base (3); or, the connection structure comprises a plug-in pin (25) and a socket (30) that fit together, wherein the plug-in pin (25) is arranged at the top of the base (3), and the socket (30) is arranged at the bottom of the cooling element (2).
6. The solenoid valve structure according to claim 5, Features: The top of the cooling element (2) is also provided with a support portion (26), the top of the shell (1) is provided with a limiter (11), and the support portion (26) is supported on the lower surface of the limiter (11).
7. The solenoid valve structure according to any one of claims 1 to 6, Features: A heat conducting member (4) is provided on the cooling member (2) adjacent to the insertion hole (21).
8. The solenoid valve structure according to claim 7, Features: The side wall of the cooling element (2) separating the insertion hole (21) and the inner cavity (22) is called the inner annular wall (27), and the heat conducting element (4) includes an annular body (41) mounted on the inner annular wall (27).
9. The solenoid valve structure according to claim 8, Features: The heat conducting member (4) further comprises a heat sink (42) arranged on the outer peripheral wall of the annular body (41), wherein the heat sink (42) extends radially along the annular body (41), and the heat sink (42) passes through the inner annular wall (27) of the cooling member (2) and extends into the inner cavity (22).
10. The solenoid valve structure according to claim 9, Features: The annular body (41) is partially bent outward to form the heat sink (42), thereby forming a notch (43) at the location where the heat sink (42) was originally located.
11. The solenoid valve structure according to claim 10, Features: The heat sink (42) comprises a plurality of fins and is arranged at intervals along the axial direction of the annular body (41) to form a group of heat sink fins. The heat sink group comprises a plurality of groups and is arranged at intervals along the circumferential direction of the annular body (41).