Air inlet cover of automobile air conditioner

Abstract

The utility model relates to an air inlet cover structure, in particular to an air inlet cover of an automobile air conditioner, and belongs to the technical field of automobile parts. The air inlet is enclosed by ABCDA, and the air outlet is enclosed by EFGHE; the air inlet is flared, the section of the air inlet is wide at the upper end and narrow at the lower end, and the air outlet is located in the middle of the air inlet cover; a water collecting tank is arranged at the bottom in the air inlet cover, a water outlet is formed in the limit low position of the water collecting tank and extends outwards to form a water outlet pipe extending to the outer side of the air inlet cover, and a duckbilled water outlet pipe is assembled on the water outlet pipe on the water outlet. According to the air inlet cover, vortex formed by entering air in the air inlet cover is reduced, and air inlet noise is lowered; the duckbilled drainage pipe can prevent rainwater from entering the air conditioner front steaming system to cause faults, and can also prevent hot air and waste gas from entering a cab through an air duct of the air conditioner front steaming system. Therefore, the air inlet cover is reasonable in structure and smoother in waste gas isolation and water drainage, and improves the working performance of the automobile air conditioner to the maximum extent.

Description

Technical Field

[0001] The utility model relates to an air intake cover structure, in particular to an air intake cover for an automobile air conditioner, belonging to the technical field of automobile parts. Background Art

[0002] When the car air conditioner is in the external circulation working state, fresh air outside the car needs to be sucked into the car. At the same time, the hot air from the engine compartment (hot air contains waste) cannot be sucked into the cab. On rainy days, care must be taken not to suck rainwater into the cab, and rainwater that enters the air intake hood of the car air conditioner must be discharged in time.

[0003] However, under the current circumstances, the air intake hood of the automobile air conditioning has an air intake cross-section that is slightly flat and rectangular, with the upper and lower ends being of similar size, and the air outlet being close to the upper part. Air entering from the air intake will form a vortex inside the air intake hood, causing relatively large wind noise; secondly, the drainage pipe of the automobile air conditioning air intake hood is arranged at a position slightly above the bottom, which will cause a small amount of rainwater to accumulate at the bottom. When the vehicle is driving at high speed, there is a risk that the rainwater will be brought into the air conditioning pre-evaporation system through the air intake; however, the drainage pipe of the automobile air conditioning air intake hood is currently made to pass straight outward, so although the rainwater is convenient to discharge, the hot air in the engine compartment will also be sucked into the air conditioning pre-evaporation system through the drainage pipe, and the exhaust gas will enter the air conditioning pre-evaporation system through the air duct after entering the air conditioning pre-evaporation system; in addition, because the air outlet of the existing air intake hood is close to the upper part of the air intake hood, that is, close to the air intake, and there is no shielding around the air outlet, when the rainfall is heavy, rainwater and debris are easy to enter the air conditioning pre-evaporation system, causing system failure. Utility Model Content

[0004] The purpose of the utility model is to propose an automobile air conditioning air intake cover in view of the problems existing in the above-mentioned prior art, which has a reasonable structure, isolates exhaust gas, and drains water more smoothly, effectively reduces intake noise, maximizes the working performance of the machine, and at the same time increases the service life of related components.

[0005] In order to achieve the above purpose, the utility model provides an automobile air-conditioning air intake hood, characterized in that: it includes an air inlet enclosed by ABCDA, and an air outlet enclosed by EFGHE; the air inlet is of an expanded type, and its cross-section is wide at the upper end and narrow at the lower end, and the air outlet is located in the middle of the air intake hood; the enclosed edge of the air outlet is connected with a baffle, and a water collecting pool is provided at the bottom of the air intake hood, a drain outlet is opened at the lowest extreme of the water collecting pool and extends outward into a water outlet pipe extending to the outside of the air intake hood, and the water outlet pipe on the drain outlet is equipped with a duckbill-shaped drain pipe.

[0006] Furthermore, the baffles are annular, distributed correspondingly in the circumferential direction, and are integrally injection-molded with the surrounding edge of the air outlet.

[0007] Furthermore, the air intake hood is of a ladder-like structure as a whole, gradually shrinking from top to bottom.

[0008] Furthermore, one side of the duckbill drain pipe is a flared pipeline and is interference-fitted with the outlet pipe on the drain outlet, and the other side of the duckbill drain pipe includes a left pressure plate and a right pressure plate, which are integrally connected and whose ends are formed into the required closed end or open end by the action of external force; when no water flows through, the ends of the left pressure plate and the right pressure plate are attached to each other to form closed ends and are in a closed state of the internal channel, and when it rains and water flows through, under the action of the gravity of the water flow, the ends of the left pressure plate and the right pressure plate are separated from each other with the center into open ends, and are in an open state of the internal channel, and the maximum opening limit is a ring.

[0009] Furthermore, the air inlet hood is made of polypropylene plastic Material: the duckbill-shaped drain pipe is made of nitrile rubber.

[0010] The utility model automobile air-conditioning air intake hood has the following advantages: due to the expanded air intake of the air intake hood and the air outlet located in the middle of the air intake hood, the air chamber flow channel connected to the air outlet is relatively smooth, which can reduce the formation of vortex in the air intake hood by the fresh air entering from the air intake, thereby reducing the intake noise; and the air outlet enclosure edge of the air intake hood is connected with a baffle plate, and the air outlet is located in the middle of the air intake hood, which better prevents rainwater, debris and the like from easily entering the air-conditioning front steam system, thereby avoiding system failure; the air intake hood is equipped with a duckbill-shaped drain pipe, when no rainwater flows out, the duckbill-shaped water pipe is in a tightly closed state to prevent hot air and exhaust gas from entering the engine compartment from entering the air intake hood, thereby avoiding hot air from entering the cab through the air duct of the air-conditioning front steam system; and the drain outlet is located at the lowest limit of the water collection pool, and the end of the drain outlet is equipped with a duckbill-shaped drain pipe, which can completely discharge rainwater and debris entering the air intake hood, thereby avoiding rainwater and debris from entering the air-conditioning front steam system and causing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a schematic diagram of the structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the positions of the air inlet, air outlet and baffle of the utility model.

[0014] Figure 3 This is a schematic diagram of the location of the water collection pool and the drain outlet of the utility model.

[0015] Figure 4 The utility model is a schematic diagram of a duckbill-shaped drain pipe installed on the water outlet pipe outside the drain outlet.

[0016] Figure 5 It is a schematic diagram of the closed state of the ends of the left pressing piece and the right pressing piece of the duckbill-shaped drainage pipe of the utility model.

[0017] Figure 6 for Figure 5 Side schematic diagram of .

[0018] Figure 7 It is another structural schematic diagram of the closed state of the ends of the left pressing piece and the right pressing piece of the duckbill-shaped drainage pipe of the utility model.

[0019] Figure 8 It is a schematic diagram of the left and right pressure plates of the duckbill-shaped drainage pipe of the utility model in the maximum open state.

[0020] Fig. 9 for Figure 8 Middle AA section view.

[0021] Fig.10 This is a schematic diagram of the utility model being assembled on a vehicle.

[0022] Wherein: 1-air inlet cover, 11-air inlet, 12-air outlet, 13-baffle, 14-water collecting tank, 15-drain outlet, 150-water outlet pipe, 16-duckbill drain pipe, 160-left pressure plate or right pressure plate. DETAILED DESCRIPTION

[0023] The structure of the air intake cover of the automobile air conditioner in the first embodiment is as follows: Figure 1 — Fig.10 As shown, it includes an air inlet 11 enclosed by ABCDA, an air outlet 12 enclosed by EFGHE, the enclosed edge of the air outlet 12 is connected to a baffle 13, a water collecting pool 14 is provided at the bottom of the air inlet hood 1, a drain outlet 15 is opened at the lowest point of the water collecting pool 14 and extends outward to form a water outlet pipe 150 extending to the outside of the air inlet hood 1, and the water outlet pipe 150 on the drain outlet 15 is equipped with a duckbill-shaped drain pipe 16.

[0024] Combination Figure 1 , Figure 2 , Figure 3 :The air intake hood 1 is a ladder-shaped structure as a whole, which gradually narrows from top to bottom. This structure can ensure that rainwater, debris, etc. are discharged more smoothly; because the air intake 11 is a flared type and the cross-section is wide at the upper end and narrow at the lower end, and the air outlet 12 is located in the middle of the air intake hood 1, fresh air enters the air intake hood 1 through the air intake 11, and then enters the air conditioning pre-evaporation system through the air outlet 12. In this way, the air chamber flow channel of the fresh air entering the air outlet 12 is relatively smooth, which can effectively reduce the whistling, sound resonance and other problems of the air entering the air conditioning pre-evaporator through the air intake hood 1. The baffle 13 is annular, distributed in a circumferential direction, and is integrally injection molded with the enclosed edge of the air outlet 11. When the air flows into the air conditioning pre-evaporation system through the air outlet 11, the baffle 13 can isolate rainwater and debris and guide the rainwater and debris to the water collection tank 14.

[0025] Combination Figure 4 — Figure 8: In the utility model, a duckbill drain pipe 16 is installed on the outlet pipe 150 outside the drain port 15 at the bottom of the air intake hood 1. One side of the duckbill drain pipe 16 is a flared pipeline and is interference-fitted with the outlet pipe 150 on the drain port 15. The other side of the duckbill drain pipe 16 includes a left pressure plate 160 and a right pressure plate 160. The left pressure plate 160 and the right pressure plate 160 are integrally connected and their ends are formed into the required closed end or open end by the action of external force. Usually, the left pressure plate 160 and the right pressure plate 160 are tightly attached together; when there is no water flow passing through, the ends of the left pressure plate 160 and the right pressure plate 160 are attached to each other to form a closed end and are in a closed state of the internal channel, which serves to isolate the exhaust gas in the engine compartment. When it rains and water flows through, under the action of the gravity of the water flow, the ends of the left pressure plate 160 and the right pressure plate 160 are separated from each other into open ends with their centers, and are in an open state of the internal channel, and the maximum opening limit is a ring shape, which can quickly discharge rainwater and debris in the sump 14. Its structure is as follows Figure 8 , 9 shown.

[0026] According to the above embodiment, the main feature of the utility model air intake cover 1 is to make good use of the duckbill-shaped drain pipe 16 to work effectively. In actual work: the air intake cover 1 is preferably made of polypropylene plastic material, and is produced by injection molding; the duckbill-shaped drain pipe 16 is preferably made of nitrile rubber, and is molded and fixed on the outer water outlet pipe 150 of the drain outlet 15 by interference fit.

[0027] Finally, combine Fig.10 The air intake cover 1 is fixed to the engine compartment cover by bolts, and the rear part of the air intake cover 1 is fitted with the air conditioning front steam system to complete the assembly. Fresh air enters through the air intake port 11 of the air intake cover 1, passes through the air outlet 12 of the air intake cover 1, enters the air conditioning front steam system from the air outlet 12, and then enters the cockpit; under different working requirements, the duckbill-shaped drain pipe 16 is required to cooperate at the same time, which reflects another major working advantage and feature of the air intake cover 1.

[0028] The utility model is designed with consideration given to the fact that the air intake hood has the characteristics of better introducing fresh air, faster discharging of rainwater, isolating exhaust gas, reducing intake noise, etc., and has a compact structure, convenient assembly and disassembly, and reliable use. It has been verified through tests that it meets the assembly and use requirements of vehicles.

[0029] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. An air intake cover for automobile air conditioning, characterized in that: It includes an air inlet enclosed by ABCDA and an air outlet enclosed by EFGHE; the air inlet is of an expanded type, and its cross-section is wide at the upper end and narrow at the lower end, and the air outlet is located in the middle of the air inlet hood; a baffle is connected to the enclosed edge of the air outlet, and a water collecting pool is provided at the bottom of the air inlet hood, a drain outlet is opened at the lowest point of the water collecting pool and extends to form a water outlet pipe to the outside of the air inlet hood, and a duckbill-shaped drain pipe is installed on the water outlet.

2. The automobile air conditioning air intake cover according to claim 1, characterized in that: The baffles are annular, distributed correspondingly in the circumferential direction, and are integrally injection-molded with the surrounding edge of the air outlet.

3. The automobile air conditioning air intake cover according to claim 1, characterized in that: The air intake hood is in a ladder-like structure as a whole, gradually shrinking from top to bottom.

4. The automobile air conditioning air intake cover according to claim 1, characterized in that: One side of the duckbill drain pipe is a flared pipeline and is interference-fitted with the outlet pipe on the drain outlet. The other side of the duckbill drain pipe includes a left pressure plate and a right pressure plate. The left pressure plate and the right pressure plate are integrally connected and their ends generate the required closed end or open end through the action of external force. When there is no water flow passing through, the ends of the left pressure plate and the right pressure plate are attached to each other to form closed ends and are in a closed state of the internal channel. When it rains and water flows through, the ends of the left pressure plate and the right pressure plate are separated from each other into open ends with their centers under the action of the gravity of the water flow, and are in an open state of the internal channel, and the maximum opening limit is a ring.

5. The automobile air conditioning air intake cover according to claim 1, characterized in that: The air inlet cover is made of polypropylene plastic, and the duckbill-shaped drain pipe is made of nitrile rubber.

Images