Refrigerant pipe assembly of vehicle air conditioner and its connecting flange and sight glass assembly

Abstract

The present application relates to a connecting flange, a sight glass and a connecting flange assembly for vehicle air conditioning, and a refrigerant pipe assembly. The connecting flange includes: a main body, having a regular hexahedron shape, including a first surface and a second surface, a third surface and a fourth surface, a fifth surface and a sixth surface opposite to each other; a first hole, penetrating the main body from the first surface to the second surface; a second hole, starting from the third, fifth or sixth surface and vertically passing through the first hole, so that the two fluids are connected; and a first expansion hole, concentric with the first hole, extending from the first surface of the main body to the second surface to a predetermined distance without reaching the second hole, and the diameter of the first expansion hole is greater than the diameter of the first hole. The port of the first hole on the second surface of the main body, the port of the second hole on the third surface of the main body, and the port of the first expansion hole on the first surface of the main body have flange connection means. The connecting flange, the sight glass and the connecting flange assembly according to the present application can be used for refrigerant pipe assemblies of various vehicles.

Description

Technical Field

[0001] The present application relates to a vehicle air conditioner, and in particular, to a connecting flange, a sight glass and connecting flange assembly, and a refrigerant pipe assembly for the vehicle air conditioner. Background Art

[0002] Figure 1 is a top view showing a refrigerant pipe assembly of a vehicle air conditioner according to the prior art, Figure 2 1 is a front view showing a refrigerant pipe assembly of a vehicle air conditioner according to the prior art.

[0003] like Figure 1 and 2 As shown, the welding flange pressure plate 1 and the sight glass seat 2 used in the existing vehicle air conditioning refrigerant pipeline are two separate parts, which are connected by hard pipe welding, direct welding or threaded connection in the middle.

[0004] However, due to the limited space available for air conditioning systems in vehicles, efforts have been made to reduce the size and weight of air conditioning components. Carrying multiple components on a base is an important breakthrough. Summary of the invention

[0005] The technical problem to be solved by the present application is to reduce the volume and weight of air-conditioning components and to improve the integration of components.

[0006] To solve the above technical problems, according to one aspect of the present application, a connecting flange for a vehicle air conditioner is provided, comprising: a main body, having a regular hexahedron shape, including a first surface and a second surface, a third surface and a fourth surface, a fifth surface and a sixth surface opposite to each other; a first hole, penetrating the main body from the first surface to the second surface; a second hole, starting from the third surface, the fifth surface or the sixth surface and vertically passing through the first hole, so that the two fluids are in communication; and a first expansion hole, concentric with the first hole, extending from the first surface of the main body to the second surface to a predetermined distance without reaching the second hole, and the diameter of the first expansion hole is larger than the diameter of the first hole. The port of the first hole on the second surface of the main body, the port of the second hole on the third surface of the main body, and the port of the first expansion hole on the first surface of the main body have flange connection means.

[0007] According to an embodiment of the present application, the connecting flange may also include a second counterbore, which may be concentric with the second hole, starting from the third surface, fifth surface or sixth surface of the main body and extending inward to a predetermined distance without reaching the first hole, and the diameter of the second counterbore is larger than the diameter of the second hole.

[0008] According to an embodiment of the present application, the connecting flange may further include a third hole, and the third hole penetrates the main body from the first surface to the second surface.

[0009] According to an embodiment of the present application, the connecting flange may further include a nozzle disposed at the second surface of the first hole of the main body, the nozzle may be connected to the main body by welding, and a distal end thereof may be coupled to an external pipeline.

[0010] According to an embodiment of the present application, the flange connection means may include a threaded connection and a welding connection.

[0011] According to an embodiment of the present application, the second hole may include a flange connection means of a threaded connection or a welded connection.

[0012] According to another aspect of the present application, a sight glass and a connecting flange assembly is provided, including the connecting flange and the sight glass for vehicle air conditioner as described above. The connecting flange includes: a main body, having a regular hexahedron shape, including a first surface and a second surface, a third surface and a fourth surface, a fifth surface and a sixth surface opposite to each other; a first hole, penetrating the main body from the first surface to the second surface; a second hole, starting from the third surface, the fifth surface or the sixth surface, vertically passing through the first hole to allow fluid communication between the two; and a first reaming hole, concentric with the first hole, extending from the first surface of the main body to the second surface to a predetermined distance without reaching the second hole, the diameter of the first reaming hole is larger than the diameter of the first hole, and the port of the first hole on the second surface of the main body, the port of the second hole on the third surface of the main body, and the port of the first reaming hole on the first surface of the main body have flange connection means. The sight glass is arranged in the first reaming hole of the connecting flange.

[0013] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a nozzle disposed at the second surface of the first hole of the main body, the nozzle being connected to the main body by welding, and a distal end thereof being coupled to an external pipeline.

[0014] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a mirror guard plate for protecting the sight glass.

[0015] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a nozzle guard for protecting the nozzle.

[0016] According to another aspect of the present application, a refrigerant pipe assembly is provided, comprising the components of the sight glass and the connecting flange as described above.

[0017] According to an embodiment of the present application, the nozzle of the connecting flange of the refrigerant pipe assembly may be connected to the condenser through a pipeline, and the second expansion hole of the connecting flange may be connected to the evaporator through a pipeline.

[0018] According to an embodiment of the present application, the nozzle of the connecting flange of the refrigerant pipe assembly may be connected to the evaporator through a pipeline, and the second expansion hole of the connecting flange may be connected to the condenser through a pipeline.

[0019] Compared with the prior art, this application can at least achieve the following beneficial effects:

[0020] 1. The connecting flange for vehicle air conditioning according to the present application is provided with a first expanded hole and a second expanded hole, which can accommodate a sight glass, a pressure switch or a pressure sensor, etc., which are separately provided on the air conditioning pipe in the prior art. Therefore, the connecting flange for vehicle air conditioning according to the present application simplifies the components of the vehicle air conditioning system and reduces the number of components.

[0021] 2. The manufacturing process has been simplified. The sight glass was originally welded to the pipeline, and the pressure switch needed to be assembled on the pressure switch seat, which was also generally welded to the pipeline. After simplification, the number of welding points is reduced.

[0022] 3. The reduction of welding points also reduces the probability of poor quality and improves the overall quality of the vehicle air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0024] Figure 1 1 is a top view showing a refrigerant pipe assembly of a vehicle air conditioner according to the prior art.

[0025] Figure 2 1 is a front view showing a refrigerant pipe assembly of a vehicle air conditioner according to the prior art.

[0026] Figure 3 is a top view showing a refrigerant pipe assembly of a vehicle air conditioner according to an embodiment of the present application.

[0027] Figure 4 2 is a front view showing a refrigerant pipe assembly of a vehicle air conditioner according to an embodiment of the present application.

[0028] Figure 5 is a cross-sectional view showing a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0029] Figure 6 is a top view showing a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0030] Figure 7 is a cross-sectional view showing a selective solution of a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0031] Figure 8 Schematic diagram showing an assembly of a sight glass and a connecting flange for a vehicle air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0033] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.

[0034] The term "vehicle" in this application refers to any means of transportation with a cab and requiring an air-conditioning system, including but not limited to cars, electric vehicles, trains, tractors, aircraft, etc.

[0035] The embodiments of the present application are described below with reference to the accompanying drawings.

[0036] Figure 5 is a cross-sectional view showing a connecting flange for a vehicle air conditioner according to an embodiment of the present application, Figure 6 is a top view showing a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0037] like Figure 5 and 6 As shown, according to an embodiment of the present application, a connecting flange for a vehicle air conditioner is provided, comprising: a main body 10, a first hole 11, a second hole 12, a first expansion hole 13

[0038] The main body has a regular hexahedron shape, including first and second surfaces 10a and 10b, third and fourth surfaces 10c and 10d, and fifth and sixth surfaces 10e and 10f that are opposite to each other.

[0039] The first hole 11 penetrates the body from the first surface 10a to the second surface 10b.

[0040] The second hole 12 vertically passes through the first hole 11 starting from the third surface 10c, the fifth surface 10e or the sixth surface 10f to allow fluid communication between the two surfaces.

[0041] Figure 5Only the case where the second hole 12 vertically passes through the first hole 11 starting from the third surface 10c is shown. However, the present application is not limited thereto, and the second hole 12 may vertically pass through the first hole 11 starting from the fifth surface 10e or the sixth surface 10f.

[0042] Figure 7 is a cross-sectional view showing a selective solution of a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0043] like Figure 7 As shown, the second hole 12 may vertically penetrate the first hole 11 starting from the fifth surface 10e or the sixth surface.

[0044] The first counterbore 13 is concentric with the first hole 11 , starts from the first surface 10 a of the main body and extends to the second surface 10 b to a predetermined distance without reaching the second hole 12 . The diameter of the first counterbore 13 is greater than that of the first hole 11 .

[0045] The first hole 11 has a port on the second surface 10b of the main body, the second hole 12 has a port on the third surface 10c of the main body, and the first expansion hole 13 has a port on the first surface 10a of the main body.

[0046] although Figure 7 Not shown, but see Figure 5 As shown, according to an embodiment of the present application, the connecting flange may further include a second expanded hole 14, which may be concentric with the second hole 12, starting from the third surface 10c, the fifth surface 10e or the sixth surface 10f of the main body and extending inward to a predetermined distance without reaching the first hole 11, and the diameter of the second expanded hole 14 is larger than the diameter of the second hole 12.

[0047] According to an embodiment of the present application, the connecting flange may further include a third hole 16, which penetrates the body from the first surface 10a to the second surface 10b. The third hole 16 may be parallel to the first hole 11. However, the third hole 16 is not a flow hole for the refrigerant, but is used to fix the connecting flange to the body of the vehicle through a connecting member such as a screw.

[0048] According to an embodiment of the present application, the connection flange may further include a nozzle 15 disposed at the second surface 10 b of the first hole 11 of the main body. The nozzle 15 may be connected to the main body by welding, and a distal end thereof may be coupled to an external pipeline.

[0049] According to an embodiment of the present application, the flange connection means may include a threaded connection and a welding connection.

[0050] According to an embodiment of the present application, the second hole 12 may include a flange connection means of threaded connection or welding connection.

[0051] Figure 8Schematic diagram showing an assembly of a sight glass and a connecting flange for a vehicle air conditioner according to an embodiment of the present application.

[0052] like Figure 8 As shown, according to an embodiment of the present application, a sight glass and a connecting flange assembly is provided. The sight glass and the connecting flange assembly comprises the connecting flange 10 for a vehicle air conditioner and a sight glass 20 as described above.

[0053] The connecting flange comprises: a main body having a regular hexahedron shape, including a first surface 10a and a second surface 10b, a third surface 10c and a fourth surface, a fifth surface 10e and a sixth surface 10f opposite to each other; a first hole 11 penetrating the main body from the first surface 10a to the second surface 10b; a second hole 12 vertically passing through the first hole 11 starting from the third surface 10c, the fifth surface 10e or the sixth surface 10f so that the two fluids are in communication; and a first counterbore 13, which is concentric with the first hole 11, starts at the first surface 10a of the main body and extends to the second surface 10b to a predetermined distance without reaching the second hole 12, the diameter of the first counterbore 13 is larger than the diameter of the first hole 11, and the port of the first hole 11 at the second surface 10b of the main body, the port of the second hole 12 at the third surface 10c of the main body and the port of the first counterbore 13 at the first surface 10a of the main body have flange connection means.

[0054] The sight glass 20 is disposed in the first expansion hole 13 of the connection flange. However, the embodiment of the present application is not limited thereto, and in the case where the connection flange has a second expansion hole 14, the sight glass 20 may also be disposed in the second expansion hole 14.

[0055] In addition, although not shown in the figure, the connecting flange 10 according to the embodiment of the present application can also be combined with other components required on the refrigerant pipeline. For example, the connecting flange 10 can form a component with a pressure switch or a pressure sensor. In this case, like the sight glass 20, the pressure switch or the pressure sensor can be arranged in the first reaming hole 13 or the second reaming hole 14.

[0056] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a nozzle 15 disposed at the first hole 11 of the main body at the second surface 10b, the nozzle 15 being connected to the main body by welding, and having its distal end coupled to an external pipeline, such as a condenser of a vehicle air conditioner.

[0057] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a mirror guard 40 for protecting the sight glass.

[0058] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include a nozzle guard 30 for protecting the nozzle 15 .

[0059] According to an embodiment of the present application, the assembly of the sight glass and the connecting flange may further include an O-ring 50 sleeved on the nozzle 15 .

[0060] According to an embodiment of the present application, the second hole 12 or the second expansion hole 14 of the assembly of the sight glass and the connecting flange is connected to the refrigerant pipeline 60, and the connection method can be welding or threaded connection, for example, connected to the evaporator of the vehicle air conditioner.

[0061] Figure 3 is a top view showing a refrigerant pipe assembly of a vehicle air conditioner according to an embodiment of the present application, Figure 4 2 is a front view showing a refrigerant pipe assembly of a vehicle air conditioner according to an embodiment of the present application.

[0062] like Figure 3 and 4 As shown, according to an embodiment of the present application, a refrigerant pipe assembly is provided. The refrigerant pipe assembly includes the above-mentioned sight glass and connecting flange components and other pipes and pipe fittings.

[0063] According to an embodiment of the present application, the nozzle 15 of the connecting flange of the refrigerant pipe assembly may be connected to the condenser through a pipeline, and the second expansion hole 14 of the connecting flange may be connected to the evaporator through a pipeline.

[0064] Alternatively, the nozzle 15 of the connection flange of the refrigerant pipe assembly may be connected to the evaporator through a pipeline, and the second expansion hole 14 of the connection flange may be connected to the condenser through a pipeline.

[0065] Compared with the prior art, this application can at least achieve the following beneficial effects:

[0066] 1. The connecting flange for vehicle air conditioning according to the present application is provided with a first expanded hole and a second expanded hole, which can accommodate a sight glass, a pressure switch or a pressure sensor, etc., which are separately provided on the air conditioning pipe in the prior art. Therefore, the connecting flange for vehicle air conditioning according to the present application simplifies the components of the vehicle air conditioning system and reduces the number of components.

[0067] 2. The manufacturing process has been simplified. The sight glass was originally welded to the pipeline, and the pressure switch needed to be assembled on the pressure switch seat, which was also generally welded to the pipeline. After simplification, the number of welding points is reduced.

[0068] 3. The reduction of welding points also reduces the probability of poor quality and improves the overall quality of the vehicle air-conditioning system.

[0069] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.

Claims

1. A connecting flange for a vehicle air conditioner, comprising: A main body having a regular hexahedron shape, including a first surface and a second surface, a third surface and a fourth surface, a fifth surface and a sixth surface opposite to each other; a first hole penetrating the body from the first surface to the second surface; a second hole, starting from the third surface, the fifth surface or the sixth surface and vertically passing through the first hole, so that the two are fluidically connected; and a first counterbore, concentric with the first hole, starting from the first surface of the body and extending to the second surface to a predetermined distance without reaching the second hole, wherein the diameter of the first counterbore is larger than the diameter of the first hole, Wherein, the port of the first hole on the second surface of the main body, the port of the second hole on the third surface, the fifth surface or the sixth surface of the main body, and the port of the first expansion hole on the first surface of the main body have flange connection means; Also included is a nozzle disposed at the second surface of the first hole of the main body, the nozzle is connected to the main body by welding, and a distal end thereof is coupled to an external pipeline; Also comprising a second counterbore, wherein the second counterbore is concentric with the second hole, starts from the third surface, the fifth surface or the sixth surface of the main body and extends inward to a predetermined distance without reaching the first hole, and the diameter of the second counterbore is greater than the diameter of the second hole; Also included is a third hole, wherein the third hole penetrates the body from the first surface to the second surface.

2. The connecting flange according to claim 1, wherein: The flange connection means include threaded connection and welding connection.

3. The connecting flange according to claim 1, wherein: The second hole includes a flange connection means of threaded connection or welding connection.

4. An assembly of a sight glass and a connecting flange, comprising: The connecting flange according to any one of claims 1 to 3, and A sight glass is arranged in the first expanded hole of the connecting flange.

5. The assembly of claim 4 further comprising a mirror guard for protecting the sight glass.

6. The assembly of claim 4, further comprising a mouth guard for protecting the nozzle.

7. A refrigerant pipe assembly, comprising the component according to claim 4.

8. The refrigerant pipe assembly according to claim 7, wherein: The nozzle of the connecting flange is connected to the condenser through a pipeline, and the second expansion hole of the connecting flange is connected to the evaporator through a pipeline.

9. The refrigerant pipe assembly according to claim 7, wherein: The nozzle of the connecting flange is connected to the evaporator through a pipeline, and the second expansion hole of the connecting flange is connected to the condenser through a pipeline.

Images