WO2022143852A1 - 一种密封件以及包括该密封件的流体组件和流体装置 - Google Patents
一种密封件以及包括该密封件的流体组件和流体装置 Download PDFInfo
- Publication number
- WO2022143852A1 WO2022143852A1 PCT/CN2021/142788 CN2021142788W WO2022143852A1 WO 2022143852 A1 WO2022143852 A1 WO 2022143852A1 CN 2021142788 W CN2021142788 W CN 2021142788W WO 2022143852 A1 WO2022143852 A1 WO 2022143852A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- extension
- extension portion
- sealing member
- main body
- sealing
- Prior art date
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 178
- 238000009434 installation Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 229920000620 organic polymer Polymers 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
- F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
Definitions
- the present application relates to the field of sealing, and in particular, to a sealing member and a fluid assembly and a fluid device including the sealing member.
- the sealing member can be applied in the passage of the fluid control system, and the sealing member is arranged between the two mounting surfaces to prevent the fluid from leaking from between the two mounting surfaces.
- the sealing surface is large, the installation requirements of the sealing components are more complicated.
- the object of the present application is to provide a seal having better sealing performance at a relatively small pre-pressure when the sealing area is large, and a fluid assembly and a fluid device including the seal.
- the present application provides a sealing member, comprising a main body portion, the sealing member is formed with a first through hole, the sealing member further has a first sealing portion corresponding to the first through hole, the first through hole At least two, at least two of the first through holes have the corresponding first sealing portion, the first sealing portion includes a first extension portion and a second extension portion, the first extension portion and The second extension portion extends from the main body portion toward the first through hole, and the maximum distance between the first extension portion and the second extension portion is greater than the height of the main body portion, so The first extension portion forms a closed-loop raised structure around the first through hole at one end of the first through hole, and the second extension portion surrounds the first through hole at the other end of the first through hole.
- the holes form a closed-loop raised structure.
- the first and second extension parts are located on opposite sides of the main body part, and the first and second extension parts are directed from the main body part to the first and second extension parts.
- a through hole extends out in the direction, and the distance between the first extension part and the second extension part is greater than the height of the main body part, so that when the sealing area is larger, it can have better performance under relatively smaller pre-pressure sealing performance.
- the present application also provides a fluid device, the fluid device includes a casing, the casing further includes a first body, the casing has a channel and an accommodating groove surrounding the channel, and the accommodating groove is arranged in the accommodating groove
- the plurality of through holes of the sealing member correspond to the plurality of passages, and the first sealing portion surrounds the passages.
- the first extension portion and the second extension portion are located on opposite sides of the main body portion, and the first extension portion and the second extension portion extend from the main body portion toward the first extension portion.
- a through hole extends out in the direction, and the distance between the first extension part and the second extension part is greater than the height of the main body part, so that when the sealing area is larger, it can have better performance under relatively smaller pre-pressure sealing performance.
- the present application also provides a fluid assembly including a fluid device and a second body, the fluid device includes a housing, the housing further includes a first body, the housing has a channel and an accommodating groove surrounding the channel , the above-mentioned sealing member is arranged in the accommodating groove; at least two through holes of the sealing member correspond to the at least two passages, the first sealing part surrounds the passages; the first main body Fixed with the second body, the first body and the second body compress the seal.
- the first extension portion and the second extension portion are located on opposite sides of the main body portion, and the first extension portion and the second extension portion extend from the main body portion toward the first extension portion.
- a through hole extends out in the direction, and the distance between the first extension part and the second extension part is greater than the height of the main body part, so that when the sealing area is larger, it can have better performance under relatively smaller pre-pressure sealing performance.
- Fig. 1 shows a schematic diagram of an exploded structure of a fluid assembly including a seal, a first body, and a second body provided by an embodiment of the present application;
- Figure 2 shows a schematic partial cross-sectional view of the seal shown in Figure 1;
- FIG. 3 shows a schematic front view of the combined structure of the seal and the first body of the present application
- FIG. 4 shows a partial cross-sectional schematic diagram of the seal shown in FIG. 3 and the first main body along the line F-F;
- FIG. 5 shows a partial cross-sectional schematic diagram of the seal shown in FIG. 3 and the first main body along the line E-E;
- FIG. 6 shows a schematic partial cross-sectional view along line B-B of the seal, the second body and the first body shown in FIG. 3 in an uncompressed state;
- FIG. 7 shows a schematic partial cross-sectional view along line B-B of the seal, the second body and the first body shown in FIG. 3 in a state after installation;
- Fig. 7a shows a partial enlarged structural schematic diagram of the sealing member, the first body and the second body shown in Fig. 7;
- Fig. 7b shows a partial enlarged structural schematic diagram of the seal, the first body and the second body shown in Fig. 7;
- FIG. 8 shows a schematic partial cross-sectional view along the C-C line when the seal, the first body and the second body shown in FIG. 3 are in a state after installation;
- FIG. 9 shows a schematic cross-sectional view of a housing provided by an embodiment of the present application.
- Figure 10 shows a schematic front view of a seal and a mounting surface
- Fig. 11 shows a schematic partial cross-sectional view of the sealing member and the mounting surface shown in Fig. 10 along the line D1-D1;
- Fig. 12 shows a schematic partial cross-sectional view of the sealing member and the mounting surface of Fig. 10 along the line D2-D2.
- the fluid device includes a housing 4 and an inner cavity 41 located in the housing 4 .
- the housing 4 also has a first body 2 , and the housing further includes at least two passages 42 , and the passages 42 are connected at one end. an opening part, the other end of the channel is connected to the inner cavity 41, the channel 42 communicates the opening part with the inner cavity 41, at least part of the opening parts of the valve can be connected to other parts of the fluid control system through the first body 2, and can be Relatively simplify the installation steps and increase the reliability of the seal.
- the fluid device is not limited to a valve, but can also be a pump, a heat exchanger and other devices used in a fluid control system, or can be an integrated part with multiple functions, such as an integrated part of a heat exchanger and a valve, a valve and a pump integrated parts, integrated parts of pumps and heat exchangers, etc.
- the first main body 2 has a first installation surface, the first installation surface has an installation surface 24, the first main body 2 includes at least two openings 23, the first main body 2 also has an accommodating groove 21 recessed in the installation surface 24, and the seal At least a part of 1 is disposed in the accommodating groove 21 , and the sealing member 1 surrounds each opening 23 .
- the first main body 2 is a plate-like structure, and the first main body 2 has a first mounting hole 26 penetrating itself along its thickness direction, and at least two of the first mounting holes 26 are located at the edge of the first mounting surface.
- the four first mounting holes 26 are located at the four corners of the first mounting surface, and the first mounting holes may not be provided in other regions (eg, the middle region) of the first mounting surface.
- the second body 3 corresponds to the first body 2 , the second body 3 has a second mounting surface 31 , the second body 3 includes at least two interface parts 32 , and the at least two interface parts 32 correspond to the at least two opening parts 23 .
- the second body 3 has a second mounting hole 33 corresponding to the first mounting hole 26 , and the first body 2 and the second body 3 can be fixed through the first mounting hole 26 and the second mounting hole 33 by screws or bolts, By pressing the sealing member 1 with the first body 2 and the second body 3 , the openings 23 can be arranged in a fluid-tight manner.
- the main body part of the first main body 2 may be an organic polymer material, such as a plastic material, or a metal material.
- the sealing member 1 is formed with at least two first through holes 104 , the sealing member further has a first sealing portion 101 corresponding to the first through holes 104 , and the first sealing portion 101 includes a first sealing portion 101 .
- the first extension part 11 surrounds a part of the first through hole 104
- the second extension part 12 also surrounds a part of the first through hole 104 .
- the first extension The portion 11 forms a closed-loop raised structure around the first through hole 104 at one end of the first through hole 104
- the second extension portion 12 forms a closed-loop raised structure around the first through hole 104 at the other end of the first through hole 104
- the sealing member 1 further includes a second sealing portion 102 located on the outer peripheral side of the first sealing portion 101 .
- the second sealing portion 102 includes a third extension portion 13 and a fourth extension portion 14 .
- the first sealing part 101 and the second sealing part 102 are connected by the main body part 15 .
- the first sealing portion 101 and the second sealing portion 102 may also be provided as separate bodies.
- the sealing member 1 includes a main body portion 15 , a first extension portion 11 , a second extension portion 12 , a third extension portion 13 and a fourth extension portion 14 , the first extension portion 11 and the second extension portion 14 .
- the extension parts 12 are located on opposite sides of the main body part 15 in the vertical direction
- the third extension part 13 and the fourth extension part 14 are located on the opposite sides of the main body part 15 in the vertical direction.
- the first extension portion 11 , the second extension portion 12 , the third extension portion 13 and the fourth extension portion 14 extend from the main body portion in a direction away from the main body portion.
- the cross section of the main body portion 15 is substantially rectangular, and the first extension portion 11 , the second extension portion 12 , the third extension portion 13 and the fourth extension portion 14 correspond to the four corners of the main body portion 15 .
- the sealing member 1 also has a laterally opposite first inner wall 191 and an outer wall 192.
- the first extension portion 11 and the second extension portion 12 extend from the main body portion 15 toward the first through hole 104.
- the first inner wall of the sealing member 1 191 corresponds to the first through hole 104 .
- the distance between the first extension portion 11 and the third extension portion 13 is larger than the width (W) of the main body portion 15, and the distance between the second extension portion 12 and the fourth extension portion 14 is larger than the width (W) of the main body portion 15.
- the distance between the first extension portion 11 and the second extension portion 12 is greater than the height (h) of the main body portion 15
- the distance between the third extension portion 13 and the fourth extension portion 14 is also larger than the vertical direction of the main body portion 15 . height (h).
- the first extension portion 11 and the third extension portion 13 are located on the same vertical side of the main body portion 15 , a first groove 17 is formed between the first extension portion and the third extension portion, and the second extension portion 12 and the fourth extension portion 14 On the same vertical side of the main body portion 15 , a second groove 18 is formed between the second extension portion 12 and the fourth extension portion 14 .
- the first inner wall 191 , the outer wall 192 , the first extension portion 11 , the second extension portion 12 , the third extension portion 13 , and the fourth extension portion 14 all extend corresponding to the main body portion 15 , and the extension direction is perpendicular or substantially perpendicular to the cross-sectional direction. It should be noted that the first inner wall 191 , the outer wall 192 , the first extension portion 11 , the second extension portion 12 , the third extension portion 13 , and the fourth extension portion 14 as a whole will follow the shape of the sealing member 1 or the sealing member. 1 changes depending on the installation status.
- the cross sections of the first extension portion 11 , the second extension portion 12 , the third extension portion 13 , and the fourth extension portion 14 are substantially strip-shaped, and one end thereof is connected to the main body portion 15 .
- stripe means that the length of its cross-section is greater than the average thickness of the cross-section, rather than a narrow and long shape with two parallel sides. Cone, ellipse or other shapes that meet the definition can be included.
- the cross-sectional length of each extension portion may be more than 1.4 times the average thickness of its cross-section, so that the strip-shaped extension portion is easier to bend.
- the part of each extension part relatively close to the main body part is defined as the proximal end, and the part of each extension part relatively far from the main body part is defined as the distal end.
- the first sealing portion 101 surrounds the opening portion 23 , and the projections of the opening portion 23 and the corresponding interface portion 32 on the second mounting surface 31 are located on the second mounting surface of the first through hole 104 . 31 within the projected range.
- the first sealing part 101 also surrounds the interface part 32 corresponding to the opening part 23 , and the first sealing part 101 is in a compressed state, so that the opening part 23 communicates with the interface part 32 and Seal set.
- the overall height of the sealing member 1 in the vertical direction is a, and the height of the first extension portion 11 in the vertical direction is h1, here
- the height h1 is the distance between the top of the first extension part 11 and the bottom of the first groove 17 in the vertical direction
- the height of the second extension part 12 in the vertical direction is h2.
- the height h2 here is the distance in the vertical direction from the top of the second extension portion 12 to the bottom of the second groove 18 .
- the overall height of the seal 1 in the vertical direction is b, and h1+h2 ⁇ a-b.
- the height of the first groove 17 is b.
- the bottom may not be in contact with the second mounting surface 31, and the bottom of the second groove 18 may not be in contact with the bottom wall of the accommodating groove 21. Therefore, the main deformation of the seal 1 is concentrated in each extension, while the main body 15 is vertical. The degree of deformation in the direction is small.
- each extension part is more easily deformed relative to the main body part 15, so this kind of The setting can relatively reduce the overall pre-pressure of the seal 1 on the second mounting surface 31 and the first body 2 under the condition of a given amount of compression, so as to prevent the seal 1 from being subjected to pre-pressure in some areas far from the fixed installation point.
- pre-pressure refers to the pressure when the mounting surface and the sealing member are not subjected to fluid pressure.
- the value range of the compression ratio (a-b)/a of the sealing element 1 is 0.25-0.40, and the pre-pressure can be small under the condition that the sealing requirements are met.
- the upper limit of the compression ratio that the seal in this embodiment can withstand is relatively large, which can reach 0.4.
- the first main body 2 and the second main body 3 can be fixedly connected, and at least two first installation holes 26 are located near the edge of the first installation surface (in this embodiment, at the four corners), The first mounting hole 26 is not provided in the central region of the first mounting surface. Since the first body 2 has at least two openings 23 arranged in a row, the area of the mounting surface 24 of the first mounting surface is relatively large. The force in the direction is relatively small, and due to the pressure of the seal 1, the first body 2 is prone to large deformation. This deformation occurs when the thickness of the first body 2 is thin or the first body 2 is It is especially obvious when the material is made of plastic, which is easy to cause the deformation of the seal 1 to be small, and there is a possibility of leakage.
- the pre-pressure of the sealing element 1 on the first body 2 can be relatively small, so that the deformation of the mounting surface 24 of the first body 2 can be relatively small, so that the gap between the mounting surface 24 and the second mounting surface 31 is relatively small.
- the distance of the seal 1 is more consistent, so that the vertical compression distribution of the entire seal 1 in the direction parallel to the mounting surface 24 is more uniform, thereby reducing the seal failure due to insufficient compression of the seal 1 in some areas. risks of.
- reducing the pressure of the seal 1 on the first body 2 can reduce the preload force required between the first body 2 and the second body 3 , and can relatively simplify the tension between the first body 2 and the second body 3 fixed structure.
- the sealing member 1 is made of elastic material, which can be injection-molded by organic polymer materials.
- the Shore hardness of EPDM rubber is lower than that of silicone rubber, so the compression rate of EPDM rubber in the vertical direction is relatively greater under the same vertical pressure.
- the overall size of the cross section of the sealing member 1 in the lateral direction can be adjusted according to the width of the accommodating groove 21 , and the main body portion 15 may not be in contact with the inner sidewall of the accommodating groove 21 .
- the first extension portion 11 has an inner side surface 111 and an outer side surface 112 arranged on both lateral sides thereof.
- the outer side surface 112 of the first extension portion 11 is a part of the first inner wall 191 , and the first extension portion 11
- the boundary line between the inner side surface 111 and the outer side surface 112 is the distal end of the first extension portion 11 in the vertical direction.
- the contact surface between the second body 3 and the seal 1 is vertical or substantially perpendicular to the vertical direction of the seal 1.
- the seal 1 When compressed, the distal end of the first extension portion 11 is in contact with the second mounting surface 31 of the second body 3 , and the distal end of the first extension portion 11 is subjected to the pressure F1 of the second body 3 .
- the maximum width of the first extension portion 11 and the second extension portion 12 in the lateral direction is smaller than the minimum width of the main body portion 15 in the lateral direction, and the bending stiffness of the first extension portion 11 is smaller than that of the main body portion 15.
- the rate of change in the vertical direction is larger than that of the main body portion 15 , the distal end of the first extension portion 11 is inclined in a direction away from and away from the outer wall 192 relative to the proximal end, and the direction of the pressure F1 is no more than the centroid of the first extension portion 11 . , so the pressure F1 will cause the first extension portion 11 to deform downward by a certain angle, and the overall effect is that the height of the sealing member in the vertical direction is reduced.
- the first inner wall 191 faces the opening 23
- the outer side surface 112 of the first extension 11 bears the resultant force F3 of the pressure inside the flow channel corresponding to the opening 23 . Since the first extension portion 11 is elongated, after the sealing member 1 is installed, in the projection pattern of the outer side surface 112 of the first extension portion 11 in the direction parallel to the installation surface 24, the area facing the second installation surface 31 Smaller than the area facing the second mounting surface 31 , the resultant force F includes a component force vertically facing the second mounting surface 31 . If the fluid pressure in the flow channel increases, the resultant force F3 of the fluid pressure on the outer side surface 112 will increase.
- the resultant force F3 is different from the pressure F1 , and the component force toward the second mounting surface portion 31 increases, so that the first extension portion 11 is increased. There is a greater pressure on the second mounting surface portion 31 , thereby improving the sealing effect of the first extension portion 11 .
- the fluid pressure also deforms the epitaxial portion. Moreover, within a specific fluid pressure range, the greater the fluid pressure in the flow channel, the better the sealing effect.
- the fluid can be gaseous, liquid or a mixture of gas and liquid.
- the second extension part 12 also has inner and outer sides arranged on both sides of the lateral direction, and the outer side of the second extension part 12 is a part of the first inner wall 191; the second extension part 12 is arc-shaped at the distal end away from the main body portion 15, the boundary line between the inner and outer surfaces of the second extension portion 12 is the distal end of the second extension portion 12 in the vertical direction, and the second extension portion 12 is away from the main body.
- the thickness of the distal end of the portion 15 is less than the thickness of the proximal end near the main body portion 15 .
- the bottom wall surface of the accommodating groove 21 is perpendicular to the vertical direction of the sealing member 1.
- the outer surface of the second extension portion 12 is projected in the direction parallel to the bottom wall surface in the figure, toward The area of the bottom wall is smaller than the area facing away from the bottom wall.
- the outer side of the second extension portion 12 also bears the resultant force F3 of the fluid pressure inside the circulation channel. If the liquid pressure in the circulation channel increases, the resultant force of the fluid pressure on the outer side surface will increase, and the resultant force F3 is in a different direction from the pressure F1 .
- the component force toward the bottom wall of the accommodating groove 21 increases, so that the pressure of the second extension 12 on the bottom wall of the accommodating groove 21 increases, thereby improving the sealing effect of the second extension 12, except that the pre-pressure causes the extension to deform.
- the fluid pressure will also deform the extension part, and, within a specific fluid pressure range, the greater the fluid pressure in the flow channel, the better the sealing effect.
- the distal end of the first extension portion 11 away from the main body portion 15 is arc-shaped, so that the contact area between the first extension portion 11 and the first extension portion 11 is small when the first extension portion 11 is just pressed by the second mounting surface 31 , so that the The distal end is easier to slide in the lateral direction, which reduces the risk of bending of at least a portion of the first extension 11 to the outer wall 192 after installation, thereby reducing the risk of seal failure.
- the distal end of the inner side surface 111 of the first extension portion 11 is inclined toward the first inner wall 191 in the lateral direction relative to the proximal end, so that during the compression process of the sealing member 1 , the distal end of the first extension portion 11 is inclined towards the first inner wall 191 in the lateral direction.
- the ends are more likely to bend away from the outer wall 192, reducing the risk of at least a portion of the first extension 11 being bent to the outer wall 192 after installation, thereby reducing the risk of seal failure.
- the thickness of the distal end of the first extension part 11 away from the main body part 15 is smaller than the thickness of the proximal end close to the main body part 15 , so that the distal end of the first extension part 11 is easier to bend toward the direction of the first inner wall 191 , thereby reducing the thickness of the first extension part 11 . Risk of seal failure.
- the overall shape of the first extension portion 11 may be substantially tapered, and the structure of the second extension portion 12 is similar to that of the first extension portion 11 , and details are not described herein again.
- the value range of the included angle ⁇ between the opposite surfaces of the first epitaxial portion 11 and the third epitaxial portion 13 may be 40°-100°, such as 40°, 60°, 80° , 100°.
- the second extension portion 12 and the fourth extension portion 14 may also have shapes and angles similar to those described above, which will not be repeated here.
- the first extension portion 11 and the second extension portion 12 are symmetrically arranged along the lateral direction, and the portion of the first inner wall 191 in the main body portion 15 is in the shape of an arc concave toward the outer wall 192 , Specifically, it is a circular arc shape, and can also be other shapes concave to the outer wall 192 , such as a triangle or a trapezoid that is concave to the outer wall.
- the bending of the first extension portion 11 and the second extension portion 12 may be facilitated.
- the height of the third extension part 13 in the vertical direction is the same as that of the first extension part 11
- the height of the fourth extension part 14 in the vertical direction is the same as that of the second extension part 11 12 is the same.
- the first extension portion 11 and the third extension portion 13 are arranged symmetrically along the vertical direction
- the second extension portion 12 and the fourth extension portion 14 are arranged symmetrically along the vertical direction, which can make the force of the seal 1 in the vertical direction relatively high. evenly.
- the cross-sections of the first groove 17 and the second groove 18 are substantially trapezoids recessed into the main body portion 15 . In other embodiments, the cross-sections of the first groove 17 and the second groove 18 may also be approximately arc-shaped or triangular.
- the sealing member 1 of this embodiment may further include at least two first protrusions 161 laterally protruding from the first inner wall 191 , and the distal ends of the first protrusions 161 in the lateral direction extend beyond the first protrusion 161 in the lateral direction.
- the distal end of an extension portion 11 in the lateral direction Taking the vertical axis of symmetry X-X of the sealing member 1 as the reference line, the length s1 of the distal end of the first protrusion 161 in the lateral direction from the X-X line is greater than the distal end of the first extension portion 11 in the lateral direction from the X-X line. of length s2.
- the lateral distal end of the first extension portion 11 is spaced apart from the inner side wall of the accommodating groove 21, so that the first mounting surface and the second mounting surface 31 are close to or The first extension portion 11 is still within the range of the accommodating groove 21 during separation, thereby preventing the first extension portion 11 from being sandwiched between the mounting surface 24 and the second mounting surface 31 , thereby reducing the risk of damage to the first extension portion 11 .
- the seal 1 also comprises at least two second protrusions 162 protruding laterally beyond the outer wall 192, the distal ends of the second protrusions 162 in the lateral direction exceeding the distal ends of the third extension 13 in the lateral direction.
- the first protruding portion 161 and the second protruding portion 162 are in interference fit with the inner side wall of the accommodating groove 21 , so that the sealing member 1 is restrained in the accommodating groove 21 . so that the sealing element 1 will not be separated from the accommodating groove 21 during installation. As shown in FIG. 1 and FIG.
- the sealing member further includes a third sealing portion 103
- the third sealing portion 103 further includes a fifth extension portion 106 and a sixth extension portion 107
- the fifth extension portion 106 and the sixth extension portion 107 are located at Opposite sides of the main body portion 15 .
- the fifth extension portion 106 is located between the two adjacent first through holes 104 of the sealing member 1
- the fifth extension portion 106 is located between the first extension portions 11 corresponding to the two adjacent first through holes 104 .
- a first groove 17 is formed between the fifth extension portion 106 and the first extension portion 11 .
- the sixth extension portion 107 is located between the two adjacent first through holes 104 of the sealing member 1 , and the sixth extension portion 107 is located between the second extension portions 12 corresponding to the two adjacent first through holes 104 .
- a second groove 18 is formed between the extension portion 106 and the second extension portion 12 .
- the fifth extension portion 106 and the sixth extension portion 107 can make the sealing effect between the adjacent first through holes 104 better.
- the sealing member 1 further includes a second through hole 105 , the fifth extension portion 106 surrounds a portion of the second through hole 105 , and the sixth extension portion 107 also surrounds a portion of the second through hole 105 .
- the fifth extension portion 106 and the sixth extension portion 107 extend from the main body portion 15 to the direction of the second through hole 105 , and the sealing member 1 is also formed with a second inner wall 193 corresponding to the second through hole 105 .
- the seal 1 also includes at least two third protrusions 163 protruding laterally beyond the second inner wall 193, the distal ends of the third protrusions 163 in the lateral direction extending beyond the distal end of the fifth extension 106 in the lateral direction.
- the third protruding portion 163 can be in interference fit with the inner side wall of the accommodating groove 21 , so that the sealing member 1 can be limited in the accommodating groove 21 .
- the sealing member 1 includes a first sealing portion 101 corresponding to the first through holes 104 , and a part of the sealing member 1 is located between two adjacent first through holes 104 .
- the first extension portion 11 of one sealing portion 101 and the first extension portion 11 of the other first sealing portion 101 are located on the same vertical side of the main body portion 15, and a first groove 17 is formed between the two first extension portions 11;
- the second extension portion 12 of one first sealing portion 101 and the second extension portion 12 of the other first sealing portion 101 are located on the same vertical side of the main body portion 15 , and are formed between the second extension portion 12 and the fourth extension portion 14 .
- the second groove 18 is recessed into the main body portion 15 , and a first groove 17 is formed between the two second extension portions 12 . Therefore, both sides of the sealing member 1 can be subjected to the pressure of the fluid in the circulation channel. No matter which side corresponds to the larger fluid pressure in the circulation channel, the sealing member 1 can play a better sealing effect, which can make the The sealing effect between adjacent through holes is better.
- the first body 2 includes six openings 23
- the sealing member 1 includes six first through holes 104 and corresponding six first sealing portions 101
- the second body 3 includes In the six interface parts 32 , each opening part 23 , the first sealing part 101 , and the interface part 32 are provided correspondingly.
- the three first sealing parts 101 are arranged side by side in order, corresponding to the three opening parts 23 in order, and also to the three interface parts 32 in order.
- the main body parts 15 of the adjacent first sealing parts 101 can be connected.
- Each of the openings 23 is fluid-tightly spaced.
- the at least two first sealing parts 101 are integrally injection-molded, which is convenient to manufacture, saves materials, and can reduce the installation process during installation.
- the six first sealing parts 101 are arranged in two rows, and each row has three first sealing parts 101 .
- the sealing member 1 may have eight first sealing parts 101 , and the eight first sealing parts 101 are arranged in two rows, and each row has four first sealing parts 101 .
- the first body 2 may have more than one opening portion 23, such as at least two, two, three, four, five, six, seven, eight, nine, etc., at least two.
- the number of the first sealing parts 101 corresponding to each opening part 23 is also more than one, for example, two, three, four, five, six, seven, eight, nine and so on.
- the number of the interface portions 32 corresponding to each opening portion 23 may also be at least two. In this embodiment, the number of openings 23 , the number of interface parts 32 and the number of first sealing parts 101 are the same, so that each opening 23 is hermetically separated from other openings 23 after installation. In other embodiments, the number of the opening parts 23 , the number of the interface parts 32 and the number of the first sealing parts 101 may also be different from each other.
- the mounting surface 24 of the first body 2 corresponds to the second mounting surface 31 of the second body 3
- the accommodating groove 21 surrounds the opening 23 and is spaced apart from the single opening 23
- the first body 2 has an inner flange 25 protruding from the bottom of the accommodating groove 21 , and the inner flange 25 can limit the sealing member 1 .
- the inner flange 25 surrounds the single opening 23 and is close to the single opening 23 relative to the accommodating groove 21. There is a gap between the top end of the inner flange 25 and the plane where the mounting surface 24 is located, that is, the top end of the inner flange 25 and the mounting surface 24 are located.
- the plane has a gap D, which can reduce the requirement of the manufacturing tolerance of the first body 2, thereby reducing the manufacturing cost. If the inner flange 25 is slightly higher than the mounting surface 24 due to manufacturing tolerances, problems may arise when the mounting surface 24 and the second mounting surface 31 need to be closely fitted, thereby weakening the sealing effect. In addition, as shown in FIG. 6 , since there is a certain gap between the top end of the inner flange 25 and the mounting surface 24 , the fluid pressure in the flow channel corresponding to the opening 23 can be transmitted into the accommodating groove 21 through the gap.
- FIG. 9 shows a part of a fluid device, which can be a valve.
- the valve includes a housing 4 and an inner cavity 41 located in the housing 4.
- the housing 4 also has a first body 2.
- the housing further includes A plurality of channels 42 and the accommodating groove 21 surrounding the channel 42, one end of the channel 42 is connected to an opening 23, the other end of the channel is connected to the inner cavity 41, the channel 42 is connected to the opening 23 and the inner cavity 41, At least part of the openings 23 of the valve are connected to other parts of the fluid control system, which can relatively simplify the installation steps and reduce the leakage points of the connection parts, thereby increasing the reliability of sealing.
- the fluid device is not limited to a valve, but can also be a pump, a heat exchanger and other devices used in a fluid control system, or can be an integrated part of various functional units, such as an integrated part of a heat exchanger and a valve, a valve and a pump
- the integrated parts, pumps and heat exchangers can improve the sealing effect.
- an embodiment of the present application further provides a fluid assembly, which may include the above-mentioned fluid device and the seal 1 , and the fluid assembly further includes a second body 3 .
- the first body 2 may be part of the above-mentioned valve or other fluid device, and the second body 3 may be part of another fluid device.
- This fluid assembly is not limited to be applied to valves with at least two external ports, but can also be applied to other fluid control assemblies or integrated components with at least two external ports or external ports with larger mounting surfaces, such as heat exchangers and In the integrated parts of the valve, the integrated parts of the valve and the pump, and the integrated part of the pump and the heat exchanger, the sealing effect can be improved.
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Abstract
Description
Claims (15)
- 一种密封件,包括主体部,所述密封件形成有第一通孔,其特征在于,所述密封件还具有与所述第一通孔相对应的第一密封部,所述第一通孔为至少两个,至少两个所述第一通孔具有与之对应的所述第一密封部,所述第一密封部包括第一外延部和第二外延部,所述第一外延部和所述第二外延部从所述主体部朝向所述第一通孔的方向延伸而出,并且所述第一外延部和第二外延部之间的最大距离大于所述主体部的高度,沿所述主体部的高度方向,所述第一外延部在所述第一通孔的一端围绕所述第一通孔形成闭环的凸起结构,所述第二外延部在所述第一通孔的另一端围绕所述第一通孔形成闭环的凸起结构。
- 如权利要求1所述的密封件,其特征在于,所述密封件还形成有与所述第一通孔对应的第一内壁,所述第一外延部具有分列于其横向两侧的内侧面和外侧面,所述第一外延部的外侧面为第一内壁的一部分;所述第一外延部在远离所述主体部的远端为弧形;所述第一外延部的远离所述主体部的远端的厚度小于靠近所述主体部的近端的厚度;和/或,所述第二外延部具有分列于其横向两侧的内侧面和外侧面,所述第二外延部的外侧面为第一内壁的一部分;所述第二外延部在远离所述主体部的远端为弧形;所述第二外延部的远离所述主体部的远端的厚度小于靠近所述主体部的近端的厚度。
- 如权利要求2所述的密封件,其特征在于,所述密封件还包括与所述第一内壁横向相对设置的外壁,所述第一外延部和所述第二外延部沿横向方向对称设置;所述第一内壁的靠近对称轴的部分为向所述外壁方向凹陷的形状,所述第一内壁在所述主体部部分为圆弧形状;所述密封件由有机聚合物材料注塑成型。
- 如权利要求1所述的密封件,其特征在于,所述第一外延部、第二外延部在横向方向上的最大宽度小于所述主体部在横向方向上的最小宽度,所述第一外延部的横截面长度大于其平均厚度的1.4倍以上,所述第二外延部的横截面长度大于其平均厚度的1.4倍以上。
- 如权利要求1-4任一权利要求所述的密封件,其特征在于,在所述密封件的外周侧,所述密封件还包括第二密封部,所述第二密封部包括第 三外延部和第四外延部,所述第三外延部和第四外延部位于所述主体部的相对两侧,所述第三外延部和第四外延部从所述主体部的向远离所述主体部方向延伸而出,并且所述第三外延部和第四外延部之间的距离大于所述主体部的竖直方向上的高度;所述第一外延部和第三外延部之间的距离大于所述主体部的横向方向上的宽度。
- 如权利要求5所述的密封件,其特征在于,所述第一外延部和第三外延部位于所述主体部竖向的同一侧,所述第一外延部和第三外延部之间形成第一凹槽;所述第二外延部和第四外延部位于所述主体部竖向的同一侧,所述第二外延部和第四外延部之间形成向主体部内凹陷的第二凹槽,所述第一外延部与所述第二外延部之间形成的夹角的范围为40°-100°。
- 如权利要求5所述的密封件,其特征在于,所述密封件还包括横向相对设置的第一内壁和外壁,所述密封件还包括至少两个横向突出于所述第一内壁的第一突出部,所述第一突出部在横向方向上的远端超出所述第一外延部在横向方向上的远端;和/或,所述密封件还包括至少两个横向突出于所述外壁的第二突出部,所述第二突出部在横向方向上的远端超出所述第三外延部在横向方向上的远端;所述密封件的组成材料包括三元乙丙橡胶、硅橡胶和聚四氟乙烯的一种或组合。
- 如权利要求6所述的密封件,其特征在于,所述第三外延部在竖直方向上的高度与所述第一外延部相同,所述第四外延部在竖直方向上的高度与所述第二外延部相同,所述第一外延部和第三外延部沿竖直方向对称设置,所述第二外延部和第四外延部沿竖直方向对称设置;所述第一凹槽、第二凹槽的截面为梯形或者三角形。
- 如权利要求1-4、6至8任一权利要求所述的密封件,其特征在于,在所述密封件的一部分位于两个相邻的所述第一通孔之间,一个所述第一密封部的第一外延部和另一个第一密封部的第一外延部位于所述主体部竖向的同一侧,两个所述第一外延部之间形成第一凹槽;一个所述第一密封部的第二外延部和另一个第一密封部的第二外延部位于所述主体部竖向的同一侧,两个所述第二外延部之间形成向主体部内凹陷的第二凹槽。
- 如权利要求1-4、6至8任一权利要求所述的密封件,其特征在于, 所述密封件还包括第三密封部,所述第三密封部包括第五外延部和第六外延部,所述第五外延部和第六外延部位于所述主体部的相对两侧,所述第五外延部和第六外延部从所述主体部向远离所述主体部的方向延伸而出,所述第五外延部位于所述密封件的两个相邻的第一通孔之间,且所述第五外延部位于两个相邻的第一通孔的第一外延部之间,所述第五外延部与所述第一外延部之间形成第一凹槽;所述第六外延部位于密封件的两个相邻第一通孔之间,且所述第六外延部位于两个相邻的第一通孔的第二外延部之间,所述第五外延部与所述第一外延部之间形成第二凹槽;和/或,所述的密封件还包括第二通孔,所述第五外延部环绕形成所述第二通孔的一部分,所述第六外延部也环绕形成所述第二通孔的一部分,所述第五外延部和第六外延部从所述主体部向所述第二通孔方向延伸而出,所述密封件还形成有与所述第二通孔对应的第二内壁;所述密封件还包括至少两个横向突出于所述第二内壁的第三突出部,所述第三突出部在横向方向上的远端超出所述第五外延部在横向方向上的远端。
- 一种流体装置,所述流体装置包括壳体,其特征在于,所述壳体包括第一主体,所述壳体具有至少两个通道以及环绕所述通道的容置槽,所述容置槽内设置有如权利要求1-10任一项所述的密封件;所述第一密封部环绕所述通道。
- 如权利要求11所述的流体装置,其特征在于,所述第一主体具有第一安装面部,所述第一安装面部具有安装面,所述第一主体包括多个开口部,所述容置槽凹陷于所述安装面且环绕单个所述开口部;所述流体装置还具有内腔,所述通道一端连接一个所述开口部,所述通道的另一端连接内腔,所述通道连通一个所述开口部与所述内腔;所述第一主体为板状,所述第一主体具有沿所述第一主体厚度方向贯穿自身的至少两个第一安装孔,所述至少两个第一安装孔都位于靠近所述安装面的边缘处;所述容置槽与单个所述开口部具有间隙,所述第一主体具有突出于容置槽底部的内侧凸缘,所述内侧凸缘环绕单个所述开口部且相对所述容置槽靠近单个所述开口部;所述内侧凸缘的顶端与所述安装面所在平面之间具有间隙。
- 一种流体组件,包括流体装置和第二主体,所述流体装置包括壳体;其特征在于,所述壳体包括第一主体,所述壳体具有通道以及环绕所述通道的容置槽,所述容置槽内设置有如权利要求1-10任一项所述的密封件;所述密封件的至少两个通孔与所述至少两个通道相对应,所述第一密封部环绕所述通道;所述第一主体与第二主体固定,所述第一主体和第二主体压紧所述密封件。
- 如权利要求13所述的流体组件,其特征在于,在所述密封件处于在竖直方向未压缩状态时,所述第一外延部在竖直方向上的高度为h1,所述第二外延部的在竖直方向上的高度为h2,所述密封件在竖直方向上的整体高度为a;在所述密封件处于所述第一主体与第二主体固定后的状态,所述密封件在竖直方向上的整体高度为b,有h1+h2≥a-b,(a-b)/a的取值范围为0.25~0.40。
- 如权利要求13所述的流体组件,其特征在于,所述第一主体具有第一安装面部,所述第一安装面部具有安装面,所述第一主体包括至少两个开口部,所述容置槽凹陷于所述安装面且环绕单个所述开口部;所述第二主体与第一主体相对应,所述第二主体具有第二安装面部,所述第二主体包括至少两个接口部,所述至少两个接口部和至少两个开口部相对应;所述通道一端连接一个所述开口部;所述第一主体为板状,所述第一主体具有沿所述第一主体厚度方向贯穿其的至少两个第一安装孔,所述至少两个第一安装孔都位于靠近所述安装面的边缘处;所述第二主体具有与所述第一安装孔相对应的第二安装孔;所述容置槽与单个所述开口部具有间隙,所述第一主体具有突出于容置槽底部的内侧凸缘,所述内侧凸缘环绕单个所述开口部且相对所述容置槽靠近单个所述开口部;所述内侧凸缘的顶端与所述安装面所在平面具有间隙。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2023540545A JP2024505365A (ja) | 2020-12-31 | 2021-12-30 | シール材、それを含む流体アセンブリ、および、流体装置 |
US18/039,028 US20240003421A1 (en) | 2020-12-31 | 2021-12-30 | Seal, fluid assembly comprising same, and fluid device |
EP21914583.6A EP4273422A1 (en) | 2020-12-31 | 2021-12-30 | Seal, fluid assembly comprising same, and fluid device |
Applications Claiming Priority (2)
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CN202011617899.3 | 2020-12-31 | ||
CN202011617899.3A CN114688251A (zh) | 2020-12-31 | 2020-12-31 | 一种密封件以及包括该密封件的流体组件和流体装置 |
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WO2022143852A1 true WO2022143852A1 (zh) | 2022-07-07 |
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PCT/CN2021/142788 WO2022143852A1 (zh) | 2020-12-31 | 2021-12-30 | 一种密封件以及包括该密封件的流体组件和流体装置 |
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US (1) | US20240003421A1 (zh) |
EP (1) | EP4273422A1 (zh) |
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WO (1) | WO2022143852A1 (zh) |
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CN116368320A (zh) * | 2020-10-29 | 2023-06-30 | 意大利Nsk牙科有限责任公司 | 环形密封件 |
CN115143305B (zh) * | 2021-03-31 | 2023-12-26 | 浙江三花汽车零部件有限公司 | 流体控制组件及其制造方法 |
EP4330566A1 (en) * | 2021-04-26 | 2024-03-06 | The Oilgear Company | Gasket plate |
-
2020
- 2020-12-31 CN CN202011617899.3A patent/CN114688251A/zh active Pending
-
2021
- 2021-12-30 EP EP21914583.6A patent/EP4273422A1/en active Pending
- 2021-12-30 WO PCT/CN2021/142788 patent/WO2022143852A1/zh active Application Filing
- 2021-12-30 US US18/039,028 patent/US20240003421A1/en active Pending
- 2021-12-30 JP JP2023540545A patent/JP2024505365A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5306023A (en) * | 1991-09-10 | 1994-04-26 | Ishikawa Gasket Co., Ltd. | Cylinder head gasket with auxiliary sealing plate |
JP2009209687A (ja) * | 2008-02-29 | 2009-09-17 | Toyoda Gosei Co Ltd | ガスケットの取付構造 |
JP2012002287A (ja) * | 2010-06-17 | 2012-01-05 | Uchiyama Manufacturing Corp | ガスケット |
CN202065087U (zh) * | 2011-05-09 | 2011-12-07 | 锦州光和密封实业有限公司 | 发动机气缸垫 |
US20130099451A1 (en) * | 2011-10-25 | 2013-04-25 | Judson B. Estes | Self-sealing gasket |
CN104169620A (zh) * | 2012-04-11 | 2014-11-26 | Nok株式会社 | 密封环 |
Also Published As
Publication number | Publication date |
---|---|
EP4273422A1 (en) | 2023-11-08 |
US20240003421A1 (en) | 2024-01-04 |
CN114688251A (zh) | 2022-07-01 |
JP2024505365A (ja) | 2024-02-06 |
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