TW201323758A - Magnetic valve - Google Patents

Abstract

A magnetic valve including a driving unit, a first magnet, a plate, a first spool, a second spool and a second magnet is provided. The plate is assembled with the driving unit, wherein the first magnet is disposed between the driving unit and the plate. The first spool has a first leaning portion and a first sheath portion. The first leaning portion is disposed on an end of the first sheath portion. The first sheath portion has a first opening. The second magnet is disposed between the leaning portion and the plate. The second spool a second leaning portion, a second sheath portion and a seam, wherein the second leaning portion covers the first leaning portion. The second leaning is disposed on an end of the second sheath portion. The second sheath portion has a second opening. The seam is disposed on the second sheath portion and by the second opening, and the seam penetrates the second sheath portion along the axle direction of the second sheath portion.

Description

Magnetic valve

This invention relates to a valve and, more particularly, to a magnetic valve.

A valve is an element used to control flow. In a common appliance, if it is necessary to control the flow of fluid in the flow passage, a valve is installed in the flow passage to control the flow of the fluid. For example, a simple valve is also used in the drip to control the flow rate and flow rate of the medicament to apply the medicament in response to the individual condition of the patient. Or, there will be some experiments on fluids in the laboratory, and the valve will usually be used to change or control the flow of the fluid to obtain experimental results. Or, in an upright server rack, because the fluid is used as a medium for heat dissipation, and the fluid has different potential energy at different heights, which affects the flow of the fluid, the fluid used for heat dissipation Valves are used in the circuit to control fluids at different heights to have the same flow rate.

For example, in a valve applied in a mechanical device (such as a fluid experimental device or a servo rack), two hollow bushings are generally sleeved with each other, one of which is connected to the motor and the other is connected to the other. The sleeve is fixed on the flow channel, and when the motor drives the sleeve to rotate, the sleeve connected to the motor rotates relative to the sleeve fixed on the flow passage to change the overlapping area of the flow openings of the two sleeves, thereby Determine the flow of fluid.

It is important to note that in order to prevent fluid from leaking out between the two bushings, a seal ring (O-ring) is usually placed between the two bushings. However, the arrangement of the seal ring increases the relative rotation of the two bushings. If the sealing effect to prevent leakage is good, it is necessary to apply great force to make the two sleeves rotate relative to each other; or, if the two sleeves can smoothly rotate relative to each other, the two sleeves and the sealing ring The contact between them should not be too tight, which will affect the sealing effect.

The present invention provides a magnetic valve having a good sealing effect.

The invention provides a magnetic valve comprising a driving member, at least one first magnet, a cover plate, a first sleeve, a second sleeve and at least a second magnet. The cover plate is correspondingly engaged with the driving member, and the first magnet is located between the driving member and the cover plate. The first sleeve has a first abutting portion and a first sleeve portion, wherein the first abutting portion is disposed at one end of the first sleeve portion, and the first sleeve portion has a first water outlet hole. The second magnet is disposed between the first abutting portion and the cover plate. The second sleeve has a second abutting portion, a second sleeve portion and a slit. The second abutting portion and the first abutting portion are sleeved with each other, and the second abutting portion is disposed on the second bushing. One end of the portion, the second sleeve portion has a second water outlet hole, the slit is disposed at the second sleeve portion and located beside the second water outlet hole, and the slit penetrates the second shaft along the axial direction of the second sleeve portion Set of parts.

In an embodiment of the magnetic valve of the present invention, the second sleeve has a coefficient of thermal expansion greater than a coefficient of thermal expansion of the first sleeve.

In an embodiment of the magnetic valve of the present invention, a motor and a transmission member connected to the motor are further included, wherein the transmission member is engaged with the driving member, and the motor driving transmission member drives the driving member to rotate.

In an embodiment of the magnetic valve of the present invention, the driving member has a first engaging portion disposed on a surface of the driving member facing the cover plate, and the cover plate has a first receiving groove facing the surface of the driving member. And the first engaging portion is correspondingly received in the first receiving groove. The first engaging portion has at least one first magnet receiving groove, and the first magnet is correspondingly disposed in the first magnet receiving groove.

In an embodiment of the magnetic valve of the present invention, the cover plate further has a second engaging portion, and the second engaging portion protrudes toward the cover plate. The magnetic valve further includes at least one set of sealing rings disposed on the second engaging portion.

In an embodiment of the magnetic valve of the present invention, the second surface of the first abutting portion has at least one second magnet accommodating groove, and the second magnet is correspondingly disposed at the second magnet accommodating groove.

In an embodiment of the magnetic valve of the present invention, the second engaging portion has a protruding post, and an edge of the first abutting portion has a limiting notch, and the protruding post is located in the limiting notch, The angle of rotation of the first sleeve relative to the cover is limited. In addition, the second sleeve further has a positioning notch, which communicates with the limiting notch of the abutting portion, and the shape of the protruding post and the positioning notch match and the size is matched, and the protruding post is embedded in the positioning notch to fix the cover plate and the first The relative position of the two sleeves.

Based on the above, the present invention provides a magnetic valve of a construction that is distinct from conventional valves. The magnetic valve uses a magnetic force to control the size of the overlapping area of the two water outlet holes, and the slit provides a rotation margin when the two sleeves of the magnetic valve are relatively rotated, and improves the relative rotation of the two sleeves. Smooth rotation.

The above described features and advantages of the present invention will be more apparent from the following description.

The magnetic valve of the present invention can be applied to any device that requires control of the flow of fluid, and the fluids described herein can be liquid or gaseous.

1 is an exploded perspective view of a magnetic valve according to an embodiment of the present invention. Referring to FIG. 1 , the magnetic valve 100 of the embodiment includes a driving component 110 , at least one first magnet 120 , a cover plate 130 , a first sleeve 140 , a second sleeve 150 , and at least a second magnet . 160. The cover plate 130 is correspondingly engaged with the driving member 110, and the first magnet 120 is disposed on the first surface 112 of the driving member 110 facing the cover plate 130 and located between the driving member 110 and the cover plate 130. The first sleeve 140 has a first abutting portion 142 and a first sleeve portion 144 , wherein a first normal direction N1 of the first abutting portion 142 is parallel to a first axial direction of the first sleeve portion 144 . A1, that is, the first abutting portion 142 is disposed at one end of the first boss portion 144, and the first boss portion 144 has a first water outlet hole 144a. The second magnet 160 is disposed on the first abutting portion 142 toward a second surface 142a of the cover plate 130. The second sleeve 150 is sleeved outside the first sleeve 140 . The second sleeve 150 has a second abutting portion 152 , a second sleeve portion 154 , and a slit 156 . The second abutting portion 152 . The first abutting portion 142 is sleeved with each other, and a second normal direction N2 of the second abutting portion 152 is parallel to a second axial direction A2 of the second sleeve portion 154, that is, the second abutting portion 152 is disposed. At one end of the second sleeve portion 154, the second sleeve portion 154 has a second water outlet hole 154a. The slit 156 is disposed at the second sleeve portion 154 and located beside the second water outlet hole 154a, and the slit 156 is along the slit 156. The second sleeve portion 154 extends axially through the second boss portion 154. The slit 156 is disposed such that the second sleeve portion 154 has a deformable margin, thereby improving the smoothness of the rotation of the first sleeve portion 144 relative to the second sleeve portion 154.

In detail, the magnetic valve 100 of the present embodiment is applied to the fluid supply line, so that high temperature fluid flows through the magnetic valve 100, and the first sleeve portion 144 can smoothly move relative to the second shaft. The sleeve portion 154 is rotated so that the coefficient of thermal expansion of the second sleeve 150 is greater than the coefficient of thermal expansion of the first sleeve 140.

In addition, the driving member 110 of the embodiment is a gear, and it may be connected to other components to allow the user to rotate the driving member 110 manually or electrically. In addition, the magnetic valve 100 may further include a motor 116 and a transmission member 118 connected to the motor 116. The transmission member 118 may also be a gear, as shown in FIG. 2, wherein the transmission member 118 is meshed with the driving member 110, and the motor 116 is used to drive the transmission member 118 to rotate, thereby driving the driving member 110 to rotate.

3 is a schematic view of another perspective of the cover of FIG. 1. Referring to FIG. 1 and FIG. 3 simultaneously, the driving member 110 has a first engaging portion 114 disposed on the first surface 112 of the driving member 110 facing the cover plate 130, and the cover plate 130 faces a third surface of the driving member 110. The first accommodating portion 132 is correspondingly received in the first accommodating groove 132a, and the driving member 110 is thus assembled to the cover plate 130. The first engaging portion 114 has at least one first magnet accommodating groove 114a, and the first magnet 120 is correspondingly disposed in the first magnet accommodating groove 114a. In the embodiment, there are two numbers 120 of the first magnets, and correspondingly, there are two first engaging portions 114.

The cover plate 130 further has a second engaging portion 134, and the second engaging portion 134 protrudes from the cover plate 130 toward a fourth surface 136 of the first sleeve 140, and the first abutment of the first sleeve 140 The portion 142 is assembled with the second engaging portion 134 of the cover plate 130. In addition, the second engaging portion 134 has a stud 134b facing the fifth surface 134a of the first abutting portion 142, and an edge of the first abutting portion 142 has a limiting notch 142b, and the stud 134b is limited. The position of the first sleeve 140 relative to the cover 130 is limited within the recess 142b. Moreover, the second sleeve 150 further has a positioning notch 158, and when the first sleeve 140 and the second sleeve 150 are sleeved together, the positioning notch 158 communicates with the limiting notch 142a of the abutting portion 142. The positioning notch 158 and the shape of the stud 134b are matched and matched in size, so that when the first sleeve 140 and the second sleeve 150 are assembled with the cover plate 130, the first abutting portion 142 of the cover plate 130 is located. The protrusion 134b of the fifth surface 134a is embedded and tightly fitted to the positioning notch 158 so that the position of the cover plate 130 and the second sleeve 150 are relatively fixed, and the second sleeve 150 cannot rotate relative to the cover plate 130.

4 is a schematic view of the first surface of the driving member and the second surface of the first abutting portion. Referring to FIG. 1 and FIG. 4 , the second surface 142 a of the first abutting portion 142 has at least one second magnet accommodating groove 142 c , and the second magnet 160 is disposed corresponding to the second magnet accommodating groove 142 c . In the present embodiment, the number of the second magnets 160 corresponds to the number of the first magnets 120, and is also two; therefore, the number of the second magnet accommodating grooves 142c is also two. In addition, the magnetic valve 100 further includes at least one set of sealing rings 170 disposed outside the second engaging portion 134. The sealing ring 170 is disposed to seal the assembly gap between the assembly of the magnetic valve 100 and the pipeline of the device. The fluid is prevented from leaking out of the assembly gap between the pipeline and the magnetic valve 100.

FIG. 5 is a schematic view of the magnetic valve of FIG. 1 assembled, and the first water outlet and the second water outlet are completely free of overlap. As shown in FIG. 5, when the user does not need to have fluid flowing through the magnetic valve 100 (ie, the flow rate is 0), the first water outlet hole 144a and the second water outlet hole 154a do not overlap at all, so the fluid cannot pass the magnetic type. Valve 100.

6 is a schematic view showing the first water outlet hole and the second water outlet hole partially overlapping in the magnetic valve of FIG. 5. Referring to FIG. 1 , FIG. 4 and FIG. 6 , the user can rotate the driving member 110 , wherein the first magnet 120 is engaged with the first magnet receiving groove 114 a of the first engaging portion 114 of the driving member 110 . The rotation of the driving member 110 is driven by the magnetic force between the second magnets 160 disposed in the second magnet receiving grooves 142c (shown in FIG. 4) of the first abutting portion 142 of the first sleeve 140 to drive the first sleeve The cylinder 140 rotates relative to the second sleeve 150 to have a portion where the first water outlet 144a and the second water outlet 154a overlap. The first sleeve 140 further has a third water outlet 146, and the second sleeve 150 further has an opening 159, wherein the first sleeve portion 144 of the first sleeve 140 is located in the opening 159. When the first water outlet hole 144a and the second water outlet hole 154a overlap, the fluid flows through the overlapping portion of the first water outlet hole 144a and the second water outlet hole 154a and the third water outlet hole 146 in the fluid device. Circulation.

It is worth mentioning that the second sleeve 150 does not rotate relative to the cover plate 130 by mutual engagement of the studs 134b and the positioning notches 158. In addition, the magnetic force referred to here may be attractive or repulsive, and may be selected according to requirements. In this embodiment, the side of the first magnet 120 disposed in the first magnet accommodating groove 114a facing the cover 130 is an N pole, and the second magnet 160 disposed in the second magnet accommodating groove 142c is oriented. The side of the cover plate 130 is an S pole, so that the attraction member is driven to drive the first sleeve 140 to rotate.

In other embodiments not shown, the number of the two magnets may also be changed according to requirements, for example, only one first magnet is provided and a second magnet is correspondingly disposed, and the two magnets may also be disposed without violating the two magnets. In the spirit of the invention, the purpose of utilizing the magnetic force to control the rotation of the first sleeve 140 relative to the second sleeve 150 is achieved.

In addition, the user can adjust the overlapping area of the first water outlet hole 144a and the second water outlet hole 154a according to requirements to adjust the flow rate of the fluid flowing through the magnetic valve 100. The protrusion 134b of the fifth surface 134a of the second engaging portion 134 and the limiting notch 142b disposed at the edge of the first abutting portion 142 are used to limit the rotation angle of the first sleeve 140 relative to the cover plate 130. The user can also know that the first water outlet hole 144a and the second water outlet hole 154a are completely coincident or not coincident by the protrusion 134b abutting against the left or right side wall of the limiting gap 142b.

In particular, the magnetic valve 100 of the present embodiment is applied to the flow path of the heat dissipation module that is in contact with the heat pipe, so when the high temperature fluid flows through the magnetic valve 100, the first sleeve 140 having a different thermal expansion coefficient is The second sleeve 150 will have a different amount of deformation. Although the second sleeve 150 is made of a material having a large coefficient of thermal expansion when the first sleeve 140 and the second sleeve 150 are made, and the first sleeve 140 is made of a material having a small coefficient of thermal expansion, the first sleeve is used. The deformation of the barrel 140 and the second sleeve 150 still affects the smoothness of the rotation of the first sleeve 140 relative to the second sleeve 150. The slit 156 is disposed to make the second sleeve 150 more elastically deformed, so that when the first sleeve 140 rotates relative to the second sleeve 150, even the deformed first sleeve 140 and the second sleeve 150 may have a shape or size that does not fit. The second sleeve portion 154 of the second sleeve 150 has a slit 156, so the second sleeve portion 154 can be adapted to the first sleeve portion 144. There is further deformation so that the first sleeve 140 can smoothly rotate relative to the second sleeve 150.

Incidentally, the slit 156 is disposed at a position where the second sleeve portion 154 of the second sleeve 150 does not coincide with the first water outlet hole 144a to prevent the first water outlet hole 114a from overlapping with the slit 156 to cause a fluid. The problem of leakage. In other words, when the first sleeve 140 rotates relative to the second sleeve 150, the slit 156 may not be disposed on the rotating path of the first water outlet hole 114a relative to the second sleeve 150. Of course, other methods may be used to prevent the fluid leakage problem caused by the first water outlet hole 114a overlapping with the slit 156, for example, the viscosity coefficient of the fluid is large and the slit of the slit 156 is dense but still sufficient to provide The elastic margin also achieves the effect of preventing fluid leakage.

In summary, the present invention provides a magnetic valve having a structure different from that of the conventional valve. The sealing ring of the magnetic valve is disposed on a cover plate that does not affect the mutual rotation of the two sleeves, so two sets. There is good rotation between the cylinders. In addition, a slit is provided on the sleeve portion of the sleeve located opposite to the outside, so that the sleeve portion provided with the slit has a margin of deformation; therefore, when the high temperature fluid flows through the magnetic valve, the two sleeves are provided When the cylinder is thermally expanded and deformed, the sleeve portion having the slit can further provide an elastic deformation margin in response to the deformation of the sleeve located on the inner side, and thus does not affect the smoothness of rotation between the two sleeves.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100. . . Magnetic valve

110, 110a. . . Drive

112. . . First surface

114. . . First engagement

114a. . . First magnet receiving slot

116. . . motor

118. . . Transmission Parts

120. . . First magnet

130. . . Cover

132. . . Third surface

132a. . . First accommodating slot

134. . . Second engagement

134a. . . Fifth surface

134b. . . Tab

136. . . Fourth surface

140. . . First sleeve

142. . . First abutment

142a. . . Second surface

142b. . . Limit gap

142c. . . Second magnet receiving slot

144. . . First bushing

144a. . . First outlet hole

146. . . Third outlet hole

150. . . Second sleeve

152. . . Second abutment

154. . . Second bushing

154a. . . Second outlet hole

156. . . Slit

158. . . Positioning gap

159. . . Opening

160. . . Second magnet

170. . . Sealing ring

N1, N2. . . Normal direction

A1, A2. . . Axial

1 is an exploded perspective view of a magnetic valve according to an embodiment of the present invention.

2 is a schematic view of a motor and a transmission member for driving a driving member.

3 is a schematic view of another perspective of the cover of FIG. 1.

4 is a schematic view of the first surface of the driving member and the second surface of the first abutting portion.

FIG. 5 is a schematic view of the magnetic valve of FIG. 1 assembled, and the first water outlet and the second water outlet are completely free of overlap.

6 is a schematic view showing the first water outlet hole and the second water outlet hole partially overlapping in the magnetic valve of FIG. 5.

100. . . Magnetic valve

110. . . Drive

112. . . First surface

114. . . First engagement

114a. . . First magnet receiving slot

120. . . First magnet

130. . . Cover

132. . . Third surface

134. . . Second engagement

134a. . . Fifth surface

134b. . . Tab

136. . . Fourth surface

140. . . First sleeve

142. . . First abutment

142a. . . Second surface

142b. . . Limit gap

144. . . First bushing

144a. . . First outlet hole

146. . . Third outlet hole

150. . . Second sleeve

152. . . Second abutment

154. . . Second bushing

154a. . . Second outlet hole

156. . . Slit

158. . . Positioning gap

159. . . Opening

160. . . Second magnet

170. . . Sealing ring

N1, N2. . . Normal direction

A1, A2. . . Axial

Claims (8)

A magnetic valve includes: a driving member; at least one first magnet; a cover plate correspondingly engaged with the driving member, wherein the at least one first magnet is located between the driving member and the cover plate; The sleeve has a first abutting portion and a first sleeve portion, wherein the first abutting portion is disposed at one end of the first sleeve portion, and the first sleeve portion has a first water outlet hole; a second magnet disposed between the first abutting portion and the cover plate; and a second sleeve having a second abutting portion, a second sleeve portion and a slit, the second abutting The second abutting portion is disposed at one end of the second sleeve portion, and the second sleeve portion has a second water outlet hole, and the slit is disposed at the first abutting portion The second sleeve portion is located beside the second water outlet hole, and the slit penetrates the second sleeve portion along the axial direction of the second sleeve portion. The magnetic valve of claim 1, wherein the second sleeve has a coefficient of thermal expansion greater than a coefficient of thermal expansion of the first sleeve. The magnetic valve according to claim 1, further comprising a motor and a transmission member connected to the transmission member, wherein the transmission member is engaged with the driving member, the motor driving the transmission member to drive the The drive member rotates. The magnetic valve of claim 1, wherein the driving member has a first engaging portion disposed on a surface of the driving member facing the cover plate, and the cover plate faces a surface of the driving member The first accommodating portion is disposed in the first accommodating groove, and the first engaging portion has at least one first magnet accommodating groove, and the at least one first The magnet is correspondingly disposed in the at least one first magnet receiving groove. The magnetic valve of claim 1, further comprising at least one sealing ring, wherein the cover further has a second engaging portion, and the second engaging portion protrudes toward the first sleeve, The sealing ring is sleeved on the second engaging portion. The magnetic valve of claim 1, wherein the first abutting portion has at least one second magnet accommodating groove, and the at least one second magnet is correspondingly disposed on the at least one second magnet accommodating groove. . The magnetic valve of claim 5, wherein the second engaging portion has a stud, and an edge of the first abutting portion has a limiting notch, and the stud is located at the limit Within the gap to limit the angle of rotation of the first sleeve relative to the cover. The magnetic valve of claim 7, wherein the second sleeve further has a positioning notch communicating with the limiting notch of the abutting portion, and the protruding post has a shape corresponding to the positioning notch Matching and matching in size, and the stud is embedded in the positioning notch to fix the relative position of the cover plate and the second sleeve.