Automobile air conditioner drainage structure and automobile

Abstract

The utility model discloses an automobile air conditioner drainage structure which comprises a drainage pipe connected with an air conditioner drainage port and a non-return device arranged at a water outlet of the drainage pipe, the non-return device comprises a connecting pipe, an anti-falling cage and a non-return ball, one end of the connecting pipe is inserted into the water outlet of the drainage pipe and communicated with the drainage pipe, and the other end of the connecting pipe is communicated with the anti-falling cage. The anti-falling cage is arranged at the other end of the connecting pipe and communicated with the connecting pipe, the non-return ball is movably arranged in the anti-falling cage, a hollow part used for draining water is arranged on the anti-falling cage, and the minimum linear distance size of the hollow part is not smaller than the inner diameter of the air conditioner water outlet; the utility model further discloses an automobile, and the automobile air conditioner drainage structure is arranged in the automobile. By improving an existing non-return device and increasing the sectional area size of front drainage on a drainage path, the anti-backflow function of the non-return device is guaranteed, meanwhile, the front drainage performance cannot be affected, and the risk of blockage caused by discharged impurities or foreign matter is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air conditioning system, concretely relates to a kind of automobile air conditioning drainage structure and automobile. BACKGROUND

[0002] The evaporator of automobile air conditioning system exchanges heat with air when working, at this time, the water vapor in the air will condense into liquid water, so the bottom of air conditioner box is generally provided with a drain pipe, and the air conditioner drain pipe passes through the vehicle body to drain the condensed water outside the vehicle. The outlet of the drain pipe is usually located at the bottom of the vehicle and is directly connected to the outside. When the vehicle is in water or falls into water, the external water source can flow into the vehicle through the drain pipe, or cause damage to the electrical components inside the vehicle, or affect the escape of the people inside the vehicle when the vehicle falls into water (there are relevant regulations about vehicle rescue in water in foreign countries).

[0003] Most of the prior art uses a one-way check device to prevent backflow, but the structure has a large change in the cross-sectional area of the drainage path, which has certain bottlenecks and ignores the impact on the normal drainage performance. At the same time, the condensed water discharged by the drain pipe is not a pure liquid, and it may contain impurities that have not been filtered or foreign matter (which may fall into the drain opening from the air outlet and then roll into the drain opening. There have been cases of this happening in the market). Therefore, such impurities or foreign matter discharged by the drain pipe may be stuck in the existing technical solutions, thereby blocking the drain pipe and preventing the condensed water from being discharged, which affects the air conditioning function. If the condensed water continues to accumulate, it will overflow into the vehicle and damage the electrical equipment. SUMMARY

[0004] Therefore, the utility model provides a kind of automobile air conditioning drainage structure and automobile, by improving the structure of existing check device, increase the size of the cross-sectional area of normal drainage on the drainage path, and then make check device ensure the function of preventing backflow, and also will not affect the normal drainage performance.

[0005] The automobile air conditioning drainage structure provided by the utility model comprises a drain pipe connected to an air conditioner drain opening and a check device arranged at a water outlet of the drain pipe, the check device comprises a connecting pipe, an anti-dropping cage and a check ball, one end of the connecting pipe is inserted into the water outlet of the drain pipe and communicates with the drain pipe, the anti-dropping cage is arranged at the other end of the connecting pipe and communicates with the connecting pipe, the check ball is movably arranged in the anti-dropping cage, the anti-dropping cage is provided with a hollow part for drainage, and the minimum straight distance size of the hollow part is not less than the inner diameter of the air conditioner drain opening.

[0006] Further, the connecting pipe is sequentially provided with a straight pipe section and a variable-diameter pipe section in the form of a trumpet structure along the water flow direction, one end of the straight pipe section is inserted into the water outlet of the drain pipe and is fixedly connected with the drain pipe, the other end of the straight pipe section is fixedly connected with the small-diameter end of the variable-diameter pipe section, and the large-diameter end of the variable-diameter pipe section is fixedly connected with the open end of the anti-falling cage.

[0007] Further, the inner diameter of the small-diameter end of the variable-diameter pipe section is smaller than the outer diameter of the check ball.

[0008] Further, the inner diameter of the small-diameter end of the variable-diameter pipe section is not less than the inner diameter of the air conditioner drain outlet.

[0009] Further, the hollow part comprises a side wall hollow hole arranged on the side wall of the anti-falling cage, and the width distance of the side wall hollow hole is smaller than the outer diameter of the check ball.

[0010] Further, the width distance of the side wall hollow hole is not less than the inner diameter of the air conditioner drain outlet.

[0011] Further, the hollow part further comprises a bottom hollow hole arranged on the bottom of the anti-falling cage, and the bottom hollow hole is used for assisting to accelerate the drainage rate of the anti-falling cage.

[0012] Further, when the check ball is located at the bottom of the anti-falling cage, the minimum distance between the top of the check ball and the top edge of the side wall hollow hole is not less than the inner diameter of the air conditioner drain outlet.

[0013] Further, the density of the check ball is smaller than the density of water.

[0014] A car is provided with the automobile air conditioner drainage structure.

[0015] The automobile air conditioner drainage structure provided by the utility model optimizes the drainage structure, effectively improves the drainage performance, avoids the risk of blockage of discharged impurities or foreign matters, mainly drains liquid from the upper end of the check ball, can effectively reduce the outer diameter size of the overall structure, and through a simpler structure, a more convenient assembly mode and a smaller size, the anti-falling device can realize the anti-backflow function, and the water-proof performance of the whole vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings and embodiments:

[0017] Figure 1 It is an internal structure schematic view of the automobile air conditioner drainage structure in the utility model;

[0018] Figure 2 It is a structure schematic view of the anti-falling device in a normal state in the utility model;

[0019] Figure 3 It is the structure schematic diagram of the anti-reverse device in the utility model for the anti-reverse device under the state of anti-inflow;

[0020] Figure 4 It is the external axis measurement structure schematic diagram of the anti-reverse device in the utility model;

[0021] Wherein the reference sign is: 1-air conditioner drain; 2-drain pipe; 3-anti-reverse device; 4-connection pipe; 5-anti-dropping cage; 6-anti-reverse ball; 401-straight pipe section; 402-reducing pipe section; 501-lateral wall hollow hole; 502-bottom hollow hole. DETAILED DESCRIPTION

[0022] As shown in the figure, the automobile air conditioner drainage structure provided by the utility model, including drain pipe 2 connected with air conditioner drain 1 and anti-reverse device 3 arranged at the water outlet of drain pipe 2, anti-reverse device 3 includes connection pipe 4, anti-dropping cage 5 and anti-reverse ball 6, one end of connection pipe 4 is inserted into the water outlet of drain pipe 2 and communicates with connection pipe 4, anti-dropping cage 5 is arranged at the other end of connection pipe 4 and communicates with connection pipe 4, anti-reverse ball 6 is movably arranged in anti-dropping cage 5, hollow part for drainage is arranged on anti-dropping cage 5, the minimum straight line distance size of hollow part is not less than the inner diameter of air conditioner drain 1; wherein one end of connection pipe 4 communicates with the water outlet of drain pipe, the other end of anti-dropping cage 5 communicates with connection pipe 4, anti-reverse ball 6 is movably arranged in anti-dropping cage 5, then anti-dropping cage 5 and connection pipe 4 can be connected by ultrasonic welding process and finally form the whole of anti-reverse device 3, and the inner wall size of anti-dropping cage 5 only needs to be slightly larger than the outer diameter size of anti-reverse ball 6, without leaving excess gap, so as to reduce the overall size; the end of connection pipe 4 close to the water outlet of drain pipe 2 is inserted into drain pipe 2 and forms connection, the other end is connected with the upper end of anti-dropping cage 5, and anti-dropping cage 5 is a cylindrical structure with the upper end open, hollow part for drainage is further arranged on the lateral wall of anti-dropping cage 5, in order to increase the cross-sectional size of the front drainage of anti-reverse device on the drainage path, therefore the minimum straight line distance size of hollow part is set to be not less than the inner diameter of air conditioner drain 1, thereby effectively improving the drainage performance and avoiding the risk of blockage of impurities or foreign matters.

[0023] In the embodiment, the connection pipe 4 is sequentially provided with a straight pipe section 401 and a reducing pipe section 402 in the water flow direction, one end of the straight pipe section 401 is inserted into the water outlet of the drain pipe 2 and is connected and fixed with the drain pipe 2, the other end of the straight pipe section 401 is connected and fixed with the small-diameter end of the reducing pipe section 402, and the large-diameter end of the reducing pipe section 402 is connected and fixed with the open end of the anti-dropping cage 1. Figure 1As shown, the connecting pipe 4 is composed of a straight pipe section 401 and a variable-diameter pipe section 402, wherein the straight pipe section 401 is inserted into the water outlet of the drain pipe 2 at the end close to the water outlet of the drain pipe 2, and the other end is connected with the variable-diameter pipe section 402, and the variable-diameter pipe section 402 is a horn-shaped structure with gradually increasing diameter along the drainage direction.

[0024] In this embodiment, the inner diameter of the small-diameter end of the variable-diameter pipe section 402 is smaller than the outer diameter of the check ball 6, and the inner diameter of the small-diameter end of the variable-diameter pipe section 402 is not smaller than the inner diameter of the air conditioner drain port 1. In combination with Figure 1 As shown, since the end of the straight pipe section 401 is connected with the small-diameter end of the variable-diameter pipe section 402, the inner diameter of the small-diameter end of the variable-diameter pipe section 402 is the same as the inner diameter of the straight pipe section 401. In order to prevent the check ball 6 from entering the straight pipe section 401 and blocking the straight pipe section 401, the inner diameter of the small-diameter end of the variable-diameter pipe section 402 is smaller than the outer diameter of the check ball 6. In order to prevent foreign matter or impurities in the water flowing out of the air conditioner drain port 1 from being blocked in the straight pipe section, the inner diameter of the small-diameter end of the variable-diameter pipe section 402 is not smaller than the inner diameter of the air conditioner drain port 1.

[0025] In this embodiment, the hollow part includes a side wall hollow hole 501 arranged on the side wall of the anti-falling cage 5, and the width distance of the side wall hollow hole 501 is smaller than the outer diameter of the check ball 6. The width distance of the side wall hollow hole 501 is not smaller than the inner diameter of the air conditioner drain port 1. The hollow part also includes a bottom hollow hole 502 arranged on the bottom of the anti-falling cage 5, which is used to assist in accelerating the drainage rate of the anti-falling cage 5. The shape of the side wall hollow hole 501 can be designed according to design requirements, but the width distance of the side wall hollow hole 501 must be smaller than the outer diameter of the check ball 6 to prevent the check ball 6 from falling off the anti-falling cage 5. In order to prevent foreign matter or impurities in the water flowing out of the air conditioner drain port 1 from being blocked in the anti-falling cage 5, the width distance of the side wall hollow hole 501 must be not smaller than the inner diameter of the air conditioner drain port 1. At the same time, the bottom hollow hole 502 can also be arranged on the bottom of the anti-falling cage 5, so that the water in the anti-falling cage 5 can also be discharged from the bottom of the anti-falling cage 5, further accelerating the drainage rate. In combination with Figure 1 As shown, in this embodiment, the side wall hollow hole 501 is designed as a strip-shaped hole structure, and a plurality of side wall hollow holes 501 are distributed on the side wall of the anti-falling cage 5 at intervals. The bottom hollow hole 502 is in a fan-shaped structure, and a plurality of bottom hollow holes 502 are distributed on the bottom of the anti-falling cage 5 at intervals.

[0026] In the embodiment, the minimum distance between the top of the anti-reverse ball 6 and the top edge of the hollow hole 501 in the side wall is not less than the inner diameter of the air conditioner drain 1 when the anti-reverse ball 6 is located at the bottom of the anti-falling cage 5; in order to reduce the overall size of the anti-reverse device, but will not affect the normal drainage of the air conditioner drain 1, therefore the minimum distance between the top of the anti-reverse ball 6 and the top edge of the highest position of the hollow hole 501 in the side wall is not less than the inner diameter of the air conditioner drain 1 when the anti-reverse ball 6 is located at the bottom of the anti-falling cage 5; the drainage structure can effectively reduce the overall structure of the outer diameter size by draining liquid from the upper end of the anti-reverse ball.

[0027] In the embodiment, the density of the anti-reverse ball 6 is less than the density of water; when the vehicle is wading, the anti-reverse ball 6 will float to the variable diameter pipe section 402 due to the buoyancy effect, and block the connecting pipe 4, thereby playing the role of anti-reverse.

[0028] The embodiment also provides an automobile, wherein the automobile is provided with the automobile air conditioner drainage structure; by installing the automobile air conditioner drainage structure on the automobile, the air conditioner drainage structure is further optimized, the drainage performance is effectively improved, and the risk of blockage of impurities or foreign matters is avoided; meanwhile, compared with the existing straight-through drainage pipe, the anti-reverse device in the drainage structure can realize the anti-backflow function through a simpler structure, a more convenient assembly method and a smaller size, and the water-proof performance of the vehicle is improved.

[0029] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A drainage structure for automotive air conditioning, characterized in that: The application relates to an automobile air conditioner drainage structure, which comprises a drainage pipe connected with an air conditioner drainage port and a non-return device arranged at a water outlet of the drainage pipe.

2. The automobile air conditioning drain structure according to claim 1, characterized by: The connecting pipe is sequentially provided with a straight pipe section and a variable-diameter pipe section with a horn structure along the water flow direction.

3. The automobile air conditioning drain structure according to claim 2, characterized by: The inner diameter of the small-diameter end of the variable-diameter pipe section is smaller than the outer diameter of the non-return ball.

4. The automobile air conditioning drain structure according to claim 3, characterized by: The inner diameter of the small-diameter end of the variable-diameter pipe section is not smaller than the inner diameter of the air conditioner drainage port.

5. The automobile air conditioning drain structure according to claim 1, characterized by: The hollow part comprises a side wall hollow hole arranged on the side wall of the anti-dropping cage.

6. The automobile air conditioning drain structure according to claim 5, characterized by: The width distance of the side wall hollow hole is not smaller than the inner diameter of the air conditioner drainage port.

7. The automobile air conditioning drain structure according to claim 5, characterized by: The hollow part further comprises a bottom hollow hole arranged on the bottom of the anti-dropping cage, which is used for assisting in accelerating the drainage rate of the anti-dropping cage.

8. The automobile air conditioning drain structure according to claim 5, characterized by: When the non-return ball is located at the bottom of the anti-dropping cage, the minimum distance between the top of the non-return ball and the top edge of the side wall hollow hole is not smaller than the inner diameter of the air conditioner drainage port.

9. The automobile air conditioning drain structure according to claim 1, characterized by: The density of the non-return ball is smaller than the density of water.

10. An automobile characterized by comprising: The automobile is provided with the automobile air conditioner drainage structure according to any one of claims 1 to 9.

Images