Fluid valve

Abstract

Provided is a fluid valve that allows a fluid such as cooling water to flow through a plurality of branches by communicating a plurality of ports with each other by rotating a flow path changing housing inside a main body housing. 【Solution means】A main body housing having a plurality of ports formed on the same line in the height direction from the outer peripheral surface, A plurality of communication holes are formed on the same line in the height direction from the outer peripheral surface, and a plurality of flow paths separated by a partition wall are formed inside so that the plurality of communication holes communicate selectively. A flow path changing housing that is rotatably provided inside the main body housing and rotates about the center of the main body housing. When the flow path changing housing rotates, the plurality of ports communicate with each other selectively to change the fluid flow path. The plurality of ports are formed at intervals set with reference to the central axis of the main body housing, and the plurality of communication holes are formed at intervals set with reference to the central axis of the flow path changing housing.

Description

Technical Field

[0001] The present invention relates to a fluid valve, and more particularly to a fluid valve that allows a fluid such as cooling water to flow through a plurality of branches by communicating a plurality of ports with each other by rotating a flow path change housing inside a main body housing.

Background Art

[0002] In recent years, the demand for electric vehicles as eco-cars without the risk of air pollution has been significantly increasing. Generally, in a vehicle using an internal combustion engine, a valve for controlling the flow of cooling water is used to cool an engine or the like. However, since an electric vehicle uses the electrical energy of a mounted battery pack, it is important to maintain the temperature of the temperature-sensitive battery within a certain range. In particular, the battery has a characteristic that its charge / discharge capacity rapidly decreases below a specific temperature or above a specific temperature, and the battery pack mounted on an electric vehicle must always be maintained within a certain temperature range.

[0003] For temperature adjustment of the battery pack, a method using cooling water is mainly used. When trying to adjust the temperature of the battery pack with cooling water in this way, a cooling water valve for changing the flow direction of the cooling water according to the driving conditions of the vehicle is essentially used. FIG. 1 is a diagram schematically showing a conventional cooling water valve. Inside a valve housing 10 formed in a long cylindrical tube in the longitudinal direction to change the flow path of the cooling water, a branch pipe 20 having a plurality of communication flow paths 21 with different heights is provided. Thus, when the heights of the communication flow paths 21 of the branch pipe 20 are made different in order to change the flow path of the cooling water inside the valve housing 10 without overlapping the flow paths, there is a problem that the size of the cooling water valve becomes large. S Furthermore, a sealing member 30 is inserted between the communication passage 21 of the branch pipe 20 and the inside of the valve housing 10 to prevent leakage of cooling water. However, the valve housing 10 is larger, and the area of ​​the sealing member 30 increases due to the communication passage 21 having different heights. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Korean Registered Patent Publication No. 10-2179242 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] The objective of the present invention is to provide a fluid valve that can flow a fluid such as cooling water to multiple branches by connecting multiple ports to each other through the rotation of a flow path changing housing inside the main housing. [Means for solving the problem]

[0006] The fluid valve of the present invention includes a main body housing having a plurality of ports formed on the same line in the height direction from the outer circumferential surface, and a flow path changing housing having a plurality of communication holes formed on the same line in the height direction from the outer circumferential surface, and a plurality of flow paths formed therein, separated by a separation wall so that the plurality of communication holes selectively communicate with each other, and is rotatably provided inside the main body housing and rotates about the center of the main body housing as an axis, wherein the flow path of the fluid is changed by the rotation of the flow path changing housing so that the plurality of ports selectively communicate with each other.

[0007] The plurality of ports may be formed at intervals set with respect to the central axis of the main housing. The plurality of communication holes may be formed at intervals set with respect to the central axis of the flow path modification housing. The plurality of flow paths are divided into a first group and a second group by the separation wall, and either the first group or the second group may be selected as the flow path through which the fluid flows by rotating the flow path changing housing. When the first group or the second group is selected, fluid may flow through the multiple ports in pairs, communicating with each other.

[0008] The plurality of ports may be formed at intervals set radially from the central axis of the main housing. The plurality of communication holes may be formed at intervals set radially from the central axis of the flow path modification housing. The inner circumferential surface of the main housing may be provided with sealing members to prevent fluid leakage at the locations where the plurality of ports are formed. The system may further include a drive unit positioned above or below the main housing, connected to the flow path changing housing, and used to rotate the flow path changing housing.

[0009] The flow path modification housing may have a first to twelfth communication hole formed around its outer circumferential surface, and flow paths connecting two pairs of the first to twelfth communication holes may be formed inside the flow path modification housing. Inside the flow path changing housing, a first flow path may be formed that connects the first communication hole and the third communication hole, a second flow path may be formed that connects the fifth communication hole and the ninth communication hole, a third flow path may be formed that connects the seventh communication hole and the eleventh communication hole, a fourth flow path may be formed that connects the second communication hole and the twelfth communication hole, a fifth flow path may be formed that connects the fourth communication hole and the sixth communication hole, and a sixth flow path may be formed that connects the eighth communication hole and the tenth communication hole.

[0010] Within the flow path changing housing, the first to third flow paths form a first group, and the fourth to sixth flow paths form a second group. When the first group or the second group is selected by rotation of the flow path changing housing, fluid may flow through the selected first group or the second group. When the first group or the second group is selected, the fluid may flow through the flow path of the selected group, with two ports from the first port to the sixth port in each direction, and when the first group or the second group is selected, the fluid may flow through the first port to the sixth port in each direction, with two ports in each direction.

[0011] The first to third flow paths and the fourth to sixth flow paths, which are formed by the communication holes being connected, may be divided into a first group and a second group, respectively, and may be formed at the same position in the height direction of the flow path changing housing, with the first group and the second group being formed such that the flow paths are separated within the same height. In the flow path changing housing, the first flow path and the second flow path may be formed on the same plane, penetrating the interior of the flow path changing housing, and the third flow path may be formed penetrating the flow path changing housing while bypassing the first flow path and the second flow path in a vertical direction.

[0012] The fourth to sixth channels may be separated by a separation wall formed inside the channel modification housing. The first channel and the second channel may be formed across a portion of the internal space of the fourth to sixth channels. The flow path changing housing rotates clockwise, thereby alternately selecting the first group and the second group, which may connect the first to sixth ports in pairs.

Advantages of the Invention

[0013] According to the present invention, a plurality of flow paths can be formed in the flow path changing housing without changing the layers, and by rotating the flow path changing housing to communicate a plurality of ports, fluid can flow through a plurality of branches.

Brief Description of the Drawings

[0014] [Figure 1] It is a configuration diagram showing a conventional fluid valve. [Figure 2] It is a perspective view of the fluid valve of the present invention. [[ID=...]] [Figure 3] It is a cross-sectional view of the fluid valve of the present invention. [Figure 4] It is a view showing the flow path changing housing in the fluid valve of the present invention. [Figure 5] It is a cross-sectional view of the fluid valve of the present invention. [Figure 6] It is a cross-sectional view of the fluid valve of the present invention. [Figure 7] It is a view showing a state where the flow path inside the flow path changing housing is selected in the fluid valve of the present invention. [Figure 8]This figure shows a different flow path being selected than the one shown in Figure 7. [Modes for carrying out the invention]

[0015] To fully understand the present invention, preferred embodiments will be described with reference to the accompanying drawings. Embodiments of the present invention can be modified in various ways, and the scope of the invention should not be construed as being limited to the embodiments described in detail below. These embodiments are provided to give a more complete explanation of the present invention to a person of average skill in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize a clearer explanation. Note that the same members may be indicated by the same reference numerals in each drawing. Furthermore, detailed descriptions of known functions and configurations that are deemed to unnecessarily obscure the gist of the invention are omitted. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0016] The fluid valve of the present invention can be configured to include a main housing 100 and a flow path changing housing 200 inside the main housing 100. As shown in Figures 2 to 4, the main housing 100 has multiple ports formed on the same line in the height direction from the outer circumferential surface. Ports that form the inlet and outlet for fluid flow can be formed at the same position in the height direction from the outer circumferential surface of the main housing 100.

[0017] The flow path modification housing 200 has multiple communication holes 210 formed on the same line in the height direction from its outer circumferential surface. Multiple flow paths are formed inside, separated by a separation wall 250 so that the multiple communication holes 210 selectively communicate with each other. The housing is rotatably mounted inside the main housing 100 and rotates around the center of the main housing 100 as its axis. The main housing 100 has first ports 110 to sixth ports 160 formed on its outer circumferential surface. The flow path changing housing 200 has a plurality of communication holes 210 formed on its outer circumferential surface, and the plurality of communication holes 210 communicate with each other inside the flow path changing housing 200 to form a plurality of flow paths. The plurality of communication holes 210 communicate with each other in pairs to form a plurality of flow paths inside the flow path changing housing 200. The flow path changing housing 200 is rotatably mounted inside the main housing 100 and rotates around the center of the main housing 100 to selectively connect the first port 110 to the sixth port 160 in order to change the flow path of the fluid.

[0018] A drive unit 300 for rotating the flow path changing housing 200 may be positioned above or below the main housing 100. The drive unit 300 is connected to the flow path changing housing 200 and rotates the flow path changing housing 200 by a set angle. A connecting portion 240 is formed at the center of the flow path changing housing 200, protruding above or below the main housing 100. The rotational force of the drive unit 300 is transmitted to the flow path changing housing 200 by the connecting portion 240.

[0019] As shown in Figure 3, the first port 110 to the sixth port 160 may be formed at intervals set with respect to the central axis of the main housing 100. Alternatively, the first port 110 to the sixth port 160 may be formed radially from the central axis of the main housing 100 at 60° intervals. As shown in Figure 4, the multiple communication holes 210 may be formed at intervals set with respect to the central axis of the flow path changing housing 200, from the first communication hole 210a to the twelfth communication hole 210p. The flow path changing housing 200 has first communication holes 210a to twelfth communication holes 210p formed around its outer circumferential surface, and two pairs of flow paths connecting the first communication holes 210a to twelfth communication holes 210p are formed inside the flow path changing housing 200.

[0020] As shown in Figure 5, a first flow path 221 is formed inside the flow path changing housing 200, connecting the first communication hole 210a and the third communication hole 210c; a second flow path 222 is formed, connecting the fifth communication hole 210e and the ninth communication hole 210k; and a third flow path 223 is formed, connecting the seventh communication hole 210g and the eleventh communication hole 210n.

[0021] As shown in Figure 6, a fourth channel 231 is formed connecting the second communication hole 210b and the twelfth communication hole 210p, a fifth channel 232 is formed connecting the fourth communication hole 210d and the sixth communication hole 210f, and a sixth channel 233 is formed connecting the eighth communication hole 210h and the tenth communication hole 210m. Inside the flow path changing housing 200, the first to third flow paths 221 to 223 form the first group 220, and the fourth to sixth flow paths 231 to 233 form the second group 230. By rotating the flow path changing housing 200, either the first group 220 or the second group 230 is selected, and fluid flows through the selected first group 220 or second group 230. When the rotation of the flow path changing housing 200 selects either the first group 220 or the second group 230, which includes a fluid flow path inside the flow path changing housing 200, the flow paths of the selected group connect the first port 110 to the sixth port 160 in pairs.

[0022] When either the first group 220 or the second group 230 is selected, the first port 110 to the sixth port 160 are connected in pairs, allowing fluid to flow through them. The first to third flow paths 221 to 223 and the fourth to sixth flow paths 231 to 233, which are formed by the interconnecting holes 210, are divided into the first group 220 and the second group 230, respectively, and are formed at the same position in the height direction of the flow path changing housing 200. The first group 220 and the second group 230 are not formed in layers at different heights, but rather are formed so that the flow paths are divided within the same height. In the first channel 221, the first connecting hole 210a and the third connecting hole 210c are spaced 60° apart, in the second channel 222, the fifth connecting hole 210e and the ninth connecting hole 210k are spaced 120° apart, and in the third channel 223, the seventh connecting hole 210g and the eleventh connecting hole 210n are spaced 120° apart.

[0023] In the fourth channel 231 to the sixth channel 233, each connecting hole is spaced 60° apart. In the fourth channel 231, the second connecting hole 210b and the twelfth connecting hole 210p are spaced 60° apart, in the fifth channel 232, the fourth connecting hole 210d and the sixth connecting hole 210f are spaced 60° apart, and in the sixth channel 233, the eighth connecting hole 210h and the tenth connecting hole 210m are spaced 60° apart. For this purpose, the first to twelfth communication holes 210a to 210p are formed radially from the central axis of the flow path changing housing 200 at 30° intervals. The first to twelfth communication holes 210a to 210p are formed sequentially at 30° intervals on the outer circumferential surface of the flow path changing housing 200.

[0024] In the flow path changing housing 200, the first flow path 221 and the second flow path 222 are formed on the same plane, penetrating the interior of the flow path changing housing 200, while the third flow path 223 is formed by penetrating the flow path changing housing 200 while bypassing the first flow path 221 and the second flow path 222 in a vertical direction. The fourth to sixth channels 231 to 233 may be separated by separation walls 250 formed inside the channel change housing 200. As shown in Figure 4, the three separation walls 250 can divide the internal space of the channel change housing 200 into three equal parts, and the three divided spaces can form the fourth to sixth channels 231 to 233. In this case, the first channel 221 and the second channel 222 may be formed across a portion of the internal space of the fourth channel 231 to the sixth channel 233.

[0025] As shown in Figures 7 and 8, we consider that the first port 110 to the sixth port 160 will be connected when the flow path changing housing 200 rotates. When the position of the flow path changing housing 200 shown in Figure 7 is set to the first mode in which the fluid branches and flows, the first group 220 is selected in the first mode. The first flow path 221 connects the first port 110 and the second port 120, the second flow path 222 connects the third port 130 and the fifth port 150, and the third flow path 223 connects the fourth port 140 and the sixth port 160. At this time, the fourth flow path 231 to the sixth flow path 233 of the remaining second group 230 are blocked by the inner circumferential surface of the main housing 100 through the second communication hole 210b, fourth communication hole 210d, sixth communication hole 210h, eighth communication hole 210g, tenth communication hole 210m, and twelfth communication hole 210p that connect the fourth flow path 231 to the sixth flow path 233.

[0026] Next, when the flow path changing housing 200 rotates 30° clockwise, the second group 230 is selected in the flow path changing housing 200. As a result, the first port 110 and the second port 120 are connected by the fourth flow path 231, the third port 130 and the fourth port 140 are connected by the fifth flow path 232, and the fifth port 150 and the sixth port 160 are connected by the sixth flow path 233. This can be set to the second mode, in which case the first flow paths 221 to the third flow paths 223 of the remaining first group 220 are blocked by the inner surface of the main housing 100, through the first communication holes 210a, 3rd communication hole 210c, 5th communication hole 210e, 7th communication hole 210g, 9th communication hole 210k, and 11th communication hole 210p that connect the first flow path 221 to the third flow path 223. When the flow path changing housing 200 rotates 30° clockwise again, the first group 220 is selected again by the flow path changing housing 200, and two ports each are selected from the first port 110 to the sixth port 160 and connected to each other.

[0027] In this manner, the flow path changing housing 200 rotates 30° clockwise, causing the first group 220 and the second group 230 to be selected alternately, thereby connecting the first port 110 to the sixth port 160 in pairs. Although only the first and second modes were explained above, a total of 11 modes can be created by rotating 30° clockwise. However, while the modes were explained here assuming clockwise rotation, it is also possible to set it to rotate counterclockwise. In this way, by connecting multiple ports through the rotation of the flow path changing housing, fluid can be flowed to multiple branches.

[0028] Again, as shown in Figure 3, the inner circumferential surface of the main housing 100 is provided with sealing members 170 to prevent fluid leakage at the locations where multiple ports are formed. A sealing member 170 is provided on the inner circumferential surface of the main housing 100 at the positions where the first port 110 to the sixth port 160 are formed. A flow path changing housing 200 is provided inside the main housing 100, and the sealing member 170 is positioned between the inner circumferential surface of the main housing 100 and the outer circumferential surface of the flow path changing housing 200. The sealing member 170 prevents fluid from leaking to the outside of the flow path changing housing 200 when the communication holes 210 and the first port 110 to the sixth port 160 are in communication. Furthermore, the communication holes 210 are located on the same line in the circumferential direction from the outer surface of the flow path changing housing 200. Therefore, the sealing member 170 does not need to be provided for all communication holes 210, but only for the positions corresponding to the first port 110 to the sixth port 160. Consequently, the size of the sealing member 170 used can be reduced. This makes it possible to reduce the amount of torque exerted by the drive unit 300 when the flow path changing housing 200 rotates.

[0029] The invention described above is merely illustrative, and any person with ordinary skill in the art to which the invention pertains will be well aware that various modifications and equivalent other embodiments are possible. Therefore, it will be well understood that the invention is not limited to the forms mentioned in the detailed description above. Accordingly, the true scope of technical protection of the invention should be determined by the technical idea of ​​the appended claims. Furthermore, the invention should be understood to include the spirit of the invention as defined by the appended claims and all modifications, equivalents, and substitutes within that scope. [Explanation of Symbols]

[0030] 10 Valve Housing 20 branch pipes 21 Connecting channel 30 sealing member 100 Main Housing 110 Port 1 120 Port 2 130 Third Port 140 Port 4 150 Port 5 160 Port 6 170 sealing member 200 Flow path modification housing 210 Communication hole 210a 1st communication hole 210b 2nd communication hole 210c 3rd communication hole 210d 4th communication hole 210e 5th communication hole 210f 6th communication hole 210g 7th communication hole 210h 8th communication hole 210k 9th communication hole 210m 10th communication hole 210n 11th communication hole 210p 12th communication hole 220 Group 1 221 First channel 222 Second channel 223 Third channel 230 Group 2 231 Fourth channel 232 Fifth channel 233 Sixth channel 240 Connection section 300 Drive unit

Claims

1. A main body housing having multiple ports formed on the same line in the height direction from the outer surface, The device includes a flow path changing housing that is rotatably mounted inside the main housing and rotates about the center of the main housing, comprising: multiple communication holes formed on the same line in the height direction from the outer circumferential surface, multiple flow paths formed inside which are separated by a separating wall so that the multiple communication holes selectively communicate; and a flow path changing housing that rotates about the center of the main housing. By rotating the flow path changing housing, the multiple ports selectively communicate with each other, thereby changing the fluid flow path. The plurality of flow paths are divided into a first group and a second group by the separation wall, and by the rotation of the flow path changing housing, either the first group or the second group is selected as the flow path through which the fluid flows. When the first group or the second group is selected, fluid flows through the multiple ports in pairs, communicating with each other. The fluid valve is characterized in that the flow path changing housing has a first to twelfth communication hole formed around its outer circumferential surface, and two pairs of flow paths connecting the first to twelfth communication holes are formed inside the flow path changing housing.

2. A main body housing having multiple ports formed on the same line in the height direction from the outer peripheral surface, The device includes a flow path changing housing that is rotatably mounted inside the main housing and rotates about the center of the main housing, comprising: multiple communication holes formed on the same line in the height direction from the outer circumferential surface, multiple flow paths formed inside which are separated by a separating wall so that the multiple communication holes selectively communicate; and a flow path changing housing that rotates about the center of the main housing. The flow path modification housing comprises a plurality of flow paths separated by separation walls that divide the internal space into a plurality of regions, including flow paths formed by the regions separated by the separation walls and flow paths formed across a portion of the space of the separated regions. A fluid valve characterized in that the rotation of the flow path changing housing selectively connects the plurality of ports to each other, thereby changing the fluid flow path.

3. The fluid valve according to claim 1 or 2, characterized in that the plurality of ports are formed at intervals set with respect to the central axis of the main housing.

4. The fluid valve according to claim 1 or 2, characterized in that the plurality of communication holes are formed at intervals set with respect to the central axis of the flow path changing housing.

5. The fluid valve according to claim 3, characterized in that the plurality of ports are formed at intervals set radially from the central axis of the main housing.

6. The fluid valve according to claim 4, characterized in that the plurality of communication holes are formed at intervals set radially from the central axis of the flow path changing housing.

7. The fluid valve according to claim 1 or 2, characterized in that the inner circumferential surface of the main body housing is provided with sealing members to prevent fluid leakage at the positions where the plurality of ports are formed.

8. The fluid valve according to claim 1 or 2, further comprising a drive unit disposed above or below the main body housing, connected to the flow path changing housing, and for rotating the flow path changing housing.

9. The fluid valve according to claim 1, characterized in that a first flow path is formed inside the flow path changing housing, connecting the first communication hole and the third communication hole; a second flow path is formed connecting the fifth communication hole and the ninth communication hole; a third flow path is formed connecting the seventh communication hole and the eleventh communication hole; a fourth flow path is formed connecting the second communication hole and the twelfth communication hole; a fifth flow path is formed connecting the fourth communication hole and the sixth communication hole; and a sixth flow path is formed connecting the eighth communication hole and the tenth communication hole.

10. The fluid valve according to claim 9, characterized in that, within the flow path changing housing, the first to third flow paths form a first group, and the fourth to sixth flow paths form a second group.

11. The fluid valve according to claim 10, characterized in that when the first group or the second group is selected by the rotation of the flow path changing housing, the fluid flows through the selected first group or the second group.

12. The fluid valve according to claim 11, characterized in that when the first group or the second group is selected, the flow path of the selected group connects two ports each from the first port to the sixth port, and when the first group or the second group is selected, the first port to the sixth port connect two ports each to each other and fluid flows through them.

13. The fluid valve according to claim 10, characterized in that the first to third flow paths and the fourth to sixth flow paths, which are formed by the communication holes being connected, are each divided into a first group and a second group, and are formed at the same position in the height direction of the flow path changing housing, and the first group and the second group are formed such that the flow paths are separated within the same height.

14. The fluid valve according to claim 10, wherein the first flow path and the second flow path are formed on the same plane and penetrate the interior of the flow path changing housing, and the third flow path is formed by penetrating the flow path changing housing while bypassing the first flow path and the second flow path in a vertical direction.

15. The fluid valve according to claim 10, characterized in that the fourth to sixth flow paths are separated by a separation wall formed inside the flow path changing housing.

16. The fluid valve according to claim 10, characterized in that the first flow path and the second flow path are formed across a portion of the internal space of the fourth to sixth flow paths.

17. The fluid valve according to claim 12, characterized in that the first group and the second group are alternately selected by rotating the flow path changing housing clockwise, thereby connecting the first port to the sixth port in pairs to each other.

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