Automobile air conditioner pipe connecting structure

Abstract

The utility model discloses an automobile air conditioner pipe connecting structure, which belongs to the technical field of air conditioner installation, and comprises a first connecting pipe, a second connecting pipe and a third connecting pipe, the second connecting pipe is connected with an evaporator of the automobile air conditioner; the quick connector is connected with the first connecting pipe, after the first connecting pipe and the second connecting pipe are in butt joint, the lower end of the second connecting pipe is located in the quick connector, and an action piece in the quick connector deforms, so that the action piece is clamped between the second connecting pipe and the quick connector; when the compressor and the evaporator of the automobile air conditioner are connected through the arranged quick connector, butt joint can be completed after mutual insertion, operation is easy, and compared with the mode that a welding pressing plate is used and then a bolt is used for connection, the productivity can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning installation, in particular to an automobile air-conditioning pipe connection structure. Background Art

[0002] The compressor and evaporator of the car air conditioner are connected by aluminum tubes. The connection method currently used is pressure plate docking connection, that is, aluminum tubes are provided on the evaporator and the compressor, and each aluminum tube is connected to a pressure plate with bolt holes on the pressure plate. Then, the positioning bolts are used to connect and fix them with the bolt holes on the pressure plate.

[0003] However, there are at least the following problems with the connection method using a pressure plate. First, the pressure plate needs to have an angle during welding, otherwise it cannot be fixed during assembly. Second, when the pressure plate is welded to the aluminum tube, the sealing of the welding must be ensured, otherwise it is easy to leak. Utility Model Content

[0004] In order to solve the problems of the prior art, the utility model provides an automobile air-conditioning pipe connection structure, comprising: a first connection pipe, the first connection pipe being connected to a compressor of the automobile air-conditioning;

[0005] a second connecting pipe, the second connecting pipe being connected to an evaporator of the automobile air conditioner;

[0006] A quick connector, which is connected to the first connecting pipe and the second connecting pipe respectively, and is used to quickly connect the first connecting pipe and the second connecting pipe.

[0007] Furthermore, the quick connector includes: a limiting cavity and a spring;

[0008] The limiting cavity is provided with a first opening and a second opening opposite to each other, and the first opening and the second opening are oriented parallel to the length extension direction of the first connecting tube;

[0009] The limiting cavity is sleeved on the first connecting tube, and the upper end of the first connecting tube is sequentially arranged through the first opening and the second opening;

[0010] The spring surrounds the first connecting pipe, and the spring is installed in the limiting cavity;

[0011] A protrusion is axially arranged on the side surface of the second connecting pipe near the lower end pipe opening;

[0012] The second connecting tube is sleeved on the first connecting tube, the lower end of the second connecting tube is located in the limiting cavity, and the spring is squeezed by the second connecting tube to between the second connecting tube and the limiting cavity.

[0013] Furthermore, the spring is surrounded to form an elastic annular structure.

[0014] Furthermore, the limiting cavity is a conical structure with openings at both ends.

[0015] Furthermore, the outer diameter of the elastic circular ring structure is smaller than the diameter of the second opening, and the inner diameter of the elastic circular ring structure is larger than the outer diameter of the first connecting pipe;

[0016] The inner diameter of the second connecting tube is larger than the outer diameter of the first connecting tube; the distance from the outer ring of the protrusion to the center of the lower end of the second connecting tube is larger than the inner diameter of the elastic circular ring structure and smaller than the outer diameter of the elastic circular ring structure;

[0017] After the second connecting tube is sleeved with the first connecting tube, the elastic annular structure is deformed, and the distance from the outer ring of the deformed elastic annular structure to the axis of the first connecting tube is greater than the diameter of the second opening.

[0018] Furthermore, the protrusion is a conical ring structure, and the large-diameter port of the protrusion is arranged close to the lower end of the second connecting pipe.

[0019] Beneficial effects of the utility model:

[0020] When the compressor and evaporator of the automobile air conditioner are connected by the quick connector, the connection can be completed by plugging them into each other. The operation is simple and can effectively improve the production capacity compared with the method of using welding pressure plates and then bolting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the connection between the first connecting pipe and the second connecting pipe provided by the utility model;

[0023] Figure 2 It is a front view schematic diagram of the connection between the first connecting pipe and the second connecting pipe provided by the utility model.

[0024] Figure numerals: 1 is a first connecting pipe, 2 is a second connecting pipe, 3 is a limiting cavity, 4 is a spring, and 5 is a protrusion. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1 to Figure 2 , an automobile air-conditioning pipe connection structure, comprising: a first connection pipe 1, wherein the first connection pipe 1 is connected to a compressor of the automobile air-conditioning;

[0027] A second connecting pipe 2, wherein the second connecting pipe 2 is connected to an evaporator of the automobile air conditioner;

[0028] A quick connector, which is connected to the first connecting pipe 1 and the second connecting pipe 2 respectively, and is used to quickly connect the first connecting pipe 1 and the second connecting pipe 2.

[0029] The quick connector comprises: a conical limiting cavity 3 with openings at both ends and a spring 4 surrounding the cavity to form an elastic annular structure;

[0030] The limiting cavity 3 is provided with a first opening and a second opening opposite to each other, and the first opening and the second opening are oriented parallel to the length extension direction of the first connecting tube 1;

[0031] The limiting cavity 3 is sleeved on the first connecting pipe 1, and the upper end of the first connecting pipe 1 is sequentially arranged through the first opening and the second opening;

[0032] The spring 4 is sleeved around the first connecting pipe 1, and the spring 4 is installed in the limiting cavity 3;

[0033] A protrusion 5 is axially arranged on the side surface of the second connecting pipe 2 near the lower end of the pipe opening; the protrusion 5 is a conical ring structure, and the large diameter port of the protrusion 5 is arranged near the lower end of the pipe opening of the second connecting pipe 2;

[0034] The outer diameter of the spring 4 is smaller than the diameter of the second opening, and the inner diameter of the spring 4 is larger than the outer diameter of the first connecting tube 1;

[0035] The inner diameter of the second connecting tube 2 is larger than the outer diameter of the first connecting tube 1; the distance from the outer circle of the protrusion 5 to the center of the lower end of the second connecting tube 2 is larger than the inner diameter of the elastic circular ring structure and smaller than the outer diameter of the elastic circular ring structure;

[0036] After the second connecting tube 2 is sleeved with the first connecting tube, the elastic annular structure is deformed, and the distance from the outer ring of the deformed elastic annular structure to the axis of the first connecting tube 2 is greater than the diameter of the second opening;

[0037] The second connecting tube 2 is sleeved on the first connecting tube 1 , the lower end of the second connecting tube 2 is located in the limiting cavity 3 , and the spring 4 is squeezed by the second connecting tube 2 to between the second connecting tube 2 and the limiting cavity 3 .

[0038] Among them, the inventive point of the present application is that the aluminum tube is connected by a quick connector instead of a pressure plate, and the operation is simple. Specifically, after the second connecting tube is inserted into the first connecting tube, the protrusion stretches the elastic circular ring structure formed by the spring, and the diameter of the elastic circular ring structure becomes larger. The elastic circular ring structure is sleeved on the second connecting tube. At this time, the straight-line distance from the axis of the second connecting tube to the outer circle of the elastic circular ring structure is greater than the second opening diameter on the limiting cavity, so that when the second connecting tube is pulled outward, it will not fall off the first connecting tube.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automobile air conditioning pipe connection structure, characterized in that: include: A first connecting pipe, the first connecting pipe being connected to a compressor of an automobile air conditioner; a second connecting pipe, the second connecting pipe being connected to an evaporator of the automobile air conditioner; A quick connector, the quick connector being connected to the first connecting pipe and the second connecting pipe respectively, and being used for quickly connecting the first connecting pipe and the second connecting pipe; The quick connector comprises: a limiting cavity and a spring; The limiting cavity is provided with a first opening and a second opening opposite to each other, and the first opening and the second opening are oriented parallel to the length extension direction of the first connecting tube; The limiting cavity is sleeved on the first connecting tube, and the upper end of the first connecting tube is sequentially arranged through the first opening and the second opening; The spring is sleeved around the first connecting pipe, and the spring is installed in the limiting cavity; A protrusion is axially arranged on the side surface of the second connecting pipe near the lower end pipe opening; The second connecting tube is sleeved on the first connecting tube, the lower end of the second connecting tube is located in the limiting cavity, and the spring is squeezed by the second connecting tube to between the second connecting tube and the limiting cavity.

2. The automobile air conditioning pipe connection structure according to claim 1, characterized in that: The spring is surrounded to form an elastic annular structure.

3. The automobile air conditioning pipe connection structure according to claim 2, characterized in that: The limiting cavity is in a conical structure with openings at both ends.

4. The automobile air conditioning pipe connection structure according to claim 3, characterized in that: The outer diameter of the elastic annular structure is smaller than the diameter of the second opening, and the inner diameter of the elastic annular structure is larger than the outer diameter of the first connecting pipe; The inner diameter of the second connecting tube is larger than the outer diameter of the first connecting tube; the distance from the outer ring of the protrusion to the center of the lower end of the second connecting tube is larger than the inner diameter of the elastic circular ring structure and smaller than the outer diameter of the elastic circular ring structure; After the second connecting tube is sleeved with the first connecting tube, the elastic annular structure is deformed, and the distance from the outer ring of the deformed elastic annular structure to the axis of the first connecting tube is greater than the diameter of the second opening.

5. The automobile air conditioning pipe connection structure according to claim 1, characterized in that: The protrusion is a conical ring structure, and the large-diameter port of the protrusion is arranged close to the lower end of the second connecting pipe.

Images