CN217539997U - Carbon dioxide air conditioner heat pump system pipeline flange seal assembly - Google Patents
Carbon dioxide air conditioner heat pump system pipeline flange seal assembly Download PDFInfo
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- CN217539997U CN217539997U CN202220379196.XU CN202220379196U CN217539997U CN 217539997 U CN217539997 U CN 217539997U CN 202220379196 U CN202220379196 U CN 202220379196U CN 217539997 U CN217539997 U CN 217539997U
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- heat pump
- carbon dioxide
- pump system
- dioxide air
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Abstract
The utility model relates to a carbon dioxide air conditioner heat pump system pipeline connecting flange seal assembly, including first connecting block, second connecting block, first connecting block has the protruding portion, the second connecting block has the concave part, the protruding portion is located in the concave part; a sealing gasket is arranged between the protruding part and the groove part, and the sealing gasket is a cap-shaped gasket with a hole in the middle and is sleeved on the protruding part. The utility model discloses the seal assembly who comprises two parts component will have now unites two into one, forms a cap form gasket, and this cap form seal gasket when the installation, the suit that can be very convenient is at the protruding portion, through the fixed back of pressure equipment, at first connecting block and second connecting block equipment back, is compressed tightly between the two, forms effectual seal structure, can improve product assembly efficiency greatly, simplifies the structure of seal gasket subassembly.
Description
Technical Field
The utility model relates to a vehicle air conditioning system's accessories, concretely relates to carbon dioxide air conditioner heat pump system pipe flange seal assembly.
Background
At present, the working refrigerant medium of the automobile air conditioning system gradually adopts CO 2 ，CO 2 The critical pressure (Pc =7.38 MPa) and the critical temperature (Tc =31.25 ℃) of the refrigerant are high, and in order to achieve good comprehensive refrigeration performance, a refrigeration system using carbon dioxide as a refrigerant must work in a transcritical region, and the working pressure exceeds the critical pressure, which is much higher than that of the conventional automobile air-conditioning system. Typically, R744 (CO) 2 ) The working pressure of the air-conditioning heat pump system reaches 170bar at most, and the working temperature is minus 40 ℃ to 170 ℃.
The flange connecting assembly is needed to be used for pipeline connection in an automobile air conditioning system, and the existing flange sealing assembly comprises a male end module, a female end module, a sealing gasket, a plastic fixing piece and the like. The patent CN 109519621B discloses a device for the fluid-tight connection of lines, each having a first and a second connecting piece connected to the line, which each have a sealing surface on one side oriented toward the other connecting piece and are connected to one another by at least one fastening means. The device has an intermediate element arranged between the connecting pieces, which has a retaining element and a second sealing element. A first sealing element is arranged in the holding element and between the sealing surfaces of the connecting piece. The holding element is formed with a hollow cylindrical wall having a first edge and a second edge. The second sealing element is firmly connected to the retaining element at a second edge of the retaining element. The intermediate element has a recess which extends from a first end, which is formed at the outside of the second sealing element, to a second end. The first end is designed in a conical shape, wherein the oppositely disposed side walls of the recess bear against one another on the outer side of the sealing element.
Patent CN110816202a discloses a fastening system for a heat resistant cycle of a refrigerant fitting, involving a block fitting assembly including a first block having a first fastener aperture formed therethrough, a second block having a second fastener aperture formed therethrough and axially aligned with the first fastener aperture, and a fastener extending through the first fastener aperture and the second fastener aperture to couple the first block to the second block. The block-fitting assembly includes a thermal expansion compliance feature in the form of at least one of: the inner surface of the second block defining the second fastener aperture includes an axially extending non-threaded portion adjacent the threaded portion of the second fastener aperture, or the fastener includes a neck portion having an outer diameter less than the minor diameter of the thread of the threaded portion of the fastener.
However, in the device for connecting pipelines in a fluid-tight manner disclosed in patent CN 109519621B, the intermediate element 5 is used to fix the first sealing element 4, the intermediate element 5 has a complicated structure, high manufacturing cost, complicated assembly steps, and poor sealing effect. The sealing element 80 in the fitting assembly disclosed in CN110816202a includes a metal part 81 surrounded by an elastic part 82, and the elastic part 82 is made of rubber or the like, and is not stable enough under high temperature and high pressure, and there is still a certain risk of leakage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carbon dioxide air conditioner heat pump system tube coupling flange seal assembly in order to solve above-mentioned problem.
The purpose of the utility model is realized through the following technical scheme:
a pipeline connecting flange sealing assembly of a carbon dioxide air-conditioning heat pump system comprises a first connecting block and a second connecting block,
the first connection block having a first fluid aperture, the first connection block having a protrusion at an end of the first fluid aperture,
the second connecting block has a second fluid port corresponding to the first fluid port, the second connecting block has a groove portion matching the protrusion at an end of the second fluid port,
the protruding portion and the groove portion are respectively arranged on the side surfaces of the first connecting block and the second connecting block facing each other, the first connecting block and the second connecting block are connected with each other through at least one fixing mechanism, and the protruding portion is located in the groove portion;
a sealing gasket is arranged between the protruding part and the groove part, and the sealing gasket is a cap-shaped gasket with a hole in the middle and is sleeved on the protruding part.
The utility model discloses an innovation point mainly lies in the improvement to seal gasket, will have now that the seal assembly who comprises two parts component (including an elastic element) unites two into one, form a cap form gasket, this cap form seal gasket when the installation, the suit that can be very convenient is at the protruding portion, after first connecting block and second connecting block equipment, compressed tightly between the two, form effectual seal structure, this kind of institutional advancement, can not only improve the assembly efficiency of product greatly, simplify the structure of seal gasket subassembly, help reduce cost, can also improve sealed stability, when shaking along with the vehicle, be difficult to leak, thereby satisfy the operation requirement at high-pressure frock.
Furthermore, the sealing gasket comprises a bottom plate, a side wall plate vertically connected with the bottom plate and an opening arranged in the middle of the bottom plate.
Furthermore, the side enclosing plates are provided with lug plates convenient to disassemble and assemble, and the side enclosing plates can be disassembled more easily through the lug plates.
Further, the sealing gasket is clamped and connected with the protruding part through the side coaming.
Furthermore, the sealing gasket is an integrally formed metal sheet, and the hardness of the gasket core part is less than 50HV0.1.
Furthermore, the end surfaces of the protruding portion and the groove portion are respectively provided with an annular convex tooth protruding out of the end surface of the protruding portion, after the first connecting block and the second connecting block are assembled, the annular convex tooth is pressed into the sealing gasket under the extrusion effect to realize sealing, only one annular convex tooth is designed, the pressing depth and the force of the annular convex tooth are improved, and therefore a better sealing effect is achieved.
Furthermore, a guide positioning hole and a guide positioning column are arranged between the first connecting block and the second connecting block.
Further, the first connecting block and the second connecting block are connected through a threaded screw fastener.
Further, the first connecting block and the second connecting block are connected with a pipeline, and the pipeline is a pipeline of a refrigerant loop of an air conditioning system of the motor vehicle.
Furthermore, the first connecting block and the second connecting block are metal aluminum blocks.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses make a cap form gasket with seal assembly, this cap form seal gasket when the installation, the suit is at the tubulose protruding portion of first connecting block, this kind of institutional advancement, can very big simplification current seal assembly's structure, after first connecting block and second connecting block equipment, compressed tightly between the two, and because the extrusion of single annular dogtooth on two contact surfaces, form effective sealing, this kind of institutional advancement, improve the assembly efficiency of product greatly, help reduce cost, and improve sealed stability, when vehicle-mounted shakes, be difficult to leak, satisfy the operation requirement at high-pressure frock.
Drawings
Fig. 1 is a schematic view of the overall structure of the pipe connection flange sealing assembly of the air-conditioning heat pump system of the present invention;
FIG. 2 is a schematic view of a gasket seal;
FIG. 3 isbase:Sub>A schematic sectional view taken along line A-A in FIG. 2;
FIGS. 4 and 5 are comparison graphs of different pressing depths of different areas of a single ring seal tooth and a double ring seal tooth; a denotes a first connection block (male plate); b denotes a second connecting block (female presser).
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a carbon dioxide air conditioning heat pump system pipe connection flange sealing assembly includes a first connection block 1 and a second connection block 2, the first connection block 1 having a first fluid orifice 12, the first connection block 1 having a protrusion 11 at an end of the first fluid orifice 12, the second connection block 2 having a second fluid orifice 22 corresponding to the first fluid orifice 12, the second connection block 2 having a groove portion 21 at an end of the second fluid orifice 22 matching with the protrusion 11, the protrusion 11 and the groove portion 21 being respectively disposed at sides of the first connection block 1 and the second connection block 2 facing each other, the first connection block 1 and the second connection block 2 being connected to each other by at least one fixing mechanism, the protrusion 11 being located in the groove portion 21; a sealing gasket 3 is arranged between the protruding part 11 and the groove part 21.
As shown in fig. 1 and 2, the sealing gasket 3 is a cap-shaped gasket with a hole in the middle, and is sleeved on the protrusion 11. The sealing gasket 3 comprises a bottom plate 31, a side coaming 32 vertically connected with the bottom plate 31 and an opening 33 arranged in the middle of the bottom plate 31, wherein the thickness of the bottom plate 31 is larger than that of the side coaming 32. The side enclosing plate 32 is provided with an ear plate 34 which is convenient to assemble and disassemble, and the side enclosing plate can be disassembled more easily through the ear plate. The sealing gasket 3 is tightly connected with the protruding part 11 through the side coaming 32, and can be fixed through press fitting during installation.
In a preferred embodiment, the end surfaces of the protruding portion 11 and the groove portion 21 are respectively provided with an annular convex tooth protruding from the end surface, and the annular convex tooth is pressed into the sealing gasket 3 to realize sealing under the pressing action after the first connecting block 1 and the second connecting block 2 are assembled. Compare two annular dogtooth structures, the utility model discloses a single annular dogtooth structure has better effect. Fig. 4 and 5 are comparison graphs of the pressing depths of different areas of the single ring seal tooth and the double ring seal tooth, and it can be seen that the pressing depth of a single annular convex tooth is deeper.
In the embodiment of the present invention, the sealing gasket 3 is an integrally formed metal sheet, the hardness of the gasket core is less than 50HV0.1, and the hardness is lower than the annular protruding teeth. The utility model discloses avoid using non-metallic element, the reliability obtains very big enhancement. A guide positioning hole and a guide positioning column are arranged between the first connecting block 1 and the second connecting block 2, the guide positioning hole and the guide positioning column are arranged at one end far away from the fluid orifice, and the two connecting blocks are connected better through the guide positioning hole and the guide positioning column.
First connecting block 1 is the metal aluminium piece with second connecting block 2, is connected through threaded screw rod fastener between first connecting block 1 and the second connecting block 2, passes the connecting hole that has the screw hole through the screw rod fastener, realizes first connecting block 1 and second connecting block 2's zonulae occludens. When in use, the first connecting block 1 and the second connecting block 2 are connected with a pipeline, wherein the pipeline is a pipeline of a refrigerant loop of an air conditioning system of a motor vehicle and is used for fluidly connecting two fluid conveying components of an associated fluid system.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should understand that all the improvements and modifications made without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.
Claims (10)
1. A pipeline connecting flange sealing assembly of a carbon dioxide air-conditioning heat pump system comprises a first connecting block (1) and a second connecting block (2),
the first connection block (1) having a first fluid aperture (12), the first connection block (1) having a protrusion (11) at an end of the first fluid aperture (12),
the second connecting block (2) has a second fluid orifice (22) corresponding to the first fluid orifice (12), the second connecting block (2) has a groove portion (21) matching the protrusion portion (11) at an end of the second fluid orifice (22),
the protruding portion (11) and the groove portion (21) are respectively arranged on the side surfaces of the first connecting block (1) and the second connecting block (2) facing each other, the first connecting block (1) and the second connecting block (2) are connected with each other through at least one fixing mechanism, and the protruding portion (11) is located in the groove portion (21);
the sealing structure is characterized in that a sealing gasket (3) is arranged between the protruding portion (11) and the groove portion (21), and the sealing gasket (3) is a cap-shaped gasket with a hole formed in the middle and is sleeved on the protruding portion (11).
2. The carbon dioxide air conditioning heat pump system pipe connection flange seal assembly according to claim 1, characterized in that the sealing gasket (3) comprises a bottom plate (31), a side wall plate (32) vertically connected with the bottom plate (31), and an opening (33) opened in the middle of the bottom plate (31).
3. The carbon dioxide air conditioning heat pump system pipe connection flange seal assembly according to claim 2, characterized in that the side enclosing plates (32) are provided with lugs (34) which are convenient to disassemble and assemble.
4. A carbon dioxide air conditioning heat pump system pipe connection flange seal assembly according to claim 2, characterized in that the sealing gasket (3) is snap-fitted with the protruding part (11) through the side enclosing plate (32).
5. The pipe connection flange seal assembly of the carbon dioxide air conditioning heat pump system according to claim 1, wherein the sealing gasket (3) is an integrally formed metal sheet, and the gasket core hardness is less than 50HV0.1.
6. The carbon dioxide air conditioning heat pump system pipeline connecting flange sealing assembly according to claim 1, wherein the end surfaces of the protruding portion (11) and the recessed portion (21) are respectively provided with an annular convex tooth protruding from the end surface, and after the first connecting block (1) and the second connecting block (2) are assembled, the annular convex tooth is pressed into the sealing gasket (3) under the action of extrusion to realize sealing.
7. The pipeline connecting flange sealing assembly of the carbon dioxide air conditioning heat pump system according to claim 1, wherein a guiding positioning hole and a guiding positioning column are arranged between the first connecting block (1) and the second connecting block (2).
8. The pipeline connecting flange sealing assembly of the carbon dioxide air conditioning heat pump system according to claim 1, characterized in that the first connecting block (1) and the second connecting block (2) are connected through a threaded screw fastener.
9. The carbon dioxide air conditioning heat pump system pipeline connecting flange sealing assembly according to claim 1, wherein the first connecting block (1) and the second connecting block (2) are connected with a pipeline, and the pipeline is a pipeline of a refrigerant loop of an air conditioning system of a motor vehicle.
10. The carbon dioxide air conditioning heat pump system pipeline connecting flange sealing assembly according to claim 1, wherein the first connecting block (1) and the second connecting block (2) are metal aluminum blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220379196.XU CN217539997U (en) | 2022-02-24 | 2022-02-24 | Carbon dioxide air conditioner heat pump system pipeline flange seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220379196.XU CN217539997U (en) | 2022-02-24 | 2022-02-24 | Carbon dioxide air conditioner heat pump system pipeline flange seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539997U true CN217539997U (en) | 2022-10-04 |
Family
ID=83428298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220379196.XU Active CN217539997U (en) | 2022-02-24 | 2022-02-24 | Carbon dioxide air conditioner heat pump system pipeline flange seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539997U (en) |
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2022
- 2022-02-24 CN CN202220379196.XU patent/CN217539997U/en active Active
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