Evaporator with enhanced drainage function for automobile air conditioner

Abstract

The utility model relates to the technical field of automobile air conditioners, in particular to an automobile air conditioner evaporator with a drainage enhancing function, which comprises a main body mechanism, a drainage mechanism, a liquid inlet mechanism and a backflow mechanism, the drainage mechanism is positioned at the bottom end of the main body mechanism, the liquid inlet mechanism is positioned on one side of the main body mechanism, and the backflow mechanism is positioned on one side of the main body mechanism. Refrigerant is added through the refrigerant supply pipe fixedly installed on one side of the external connecting box, the refrigerant flows through the tubular evaporator and then flows out of the refrigerant return pipe fixedly installed on one side of the external connecting box, the drainage partition plate is fixedly installed at the bottom ends of the louver fins, and the drainage partition plate has a certain gradient. A water bridge generated after condensation is guided by the drainage partition plate and flows into an evaporator water pan fixedly installed in the bottom end fixing plate, an evaporator water outlet is formed in the bottom end of the bottom end fixing plate, and condensate water is drained out of the evaporator through the evaporator water outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air conditioners, in particular to an evaporator for automobile air conditioners with an enhanced drainage function. Background Art

[0002] Evaporation is the physical process of converting liquid into gas. Generally speaking, an evaporator is an object that converts liquid substances into gas. There are a large number of evaporators in the industry, and the evaporator used in refrigeration systems is one of them. The evaporator is a very important component among the four major refrigeration components. The low-temperature condensed liquid passes through the evaporator to exchange heat with the outside air, vaporize and absorb heat to achieve the refrigeration effect. The evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber. The heating chamber provides the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases.

[0003] As disclosed in the authorization announcement number CN110553426A, an evaporator for automobile air conditioning is disclosed, which belongs to the field of automobile air conditioning technology, including a mounting protective shell, an evaporator body, an air inlet and outlet assembly, a cleaning assembly, two movable assemblies and two collecting assemblies. The front end side wall of the mounting protective shell is provided with a plurality of air inlet grooves, the evaporator body is arranged in the mounting protective shell, the air inlet and outlet assembly is arranged in the mounting protective shell, the two movable assemblies are symmetrically arranged in the mounting protective shell, the two ends of the cleaning assembly are respectively fixedly connected to one end of the two movable assemblies, and the two collecting assemblies are symmetrically arranged at the bottom of the mounting protective shell. The present invention solves the problem that a large amount of fine dust contained in the air flow will accumulate on the louver fins of the evaporator, and the dust will clog and corrode the louver fins, affecting the working efficiency of the evaporator. However, during use, it has low working efficiency and poor drainage performance. For this reason, we propose an evaporator for automobile air conditioning with enhanced drainage function, which solves the problem of low working efficiency of traditional evaporators and enhances drainage performance. Summary of the invention

[0004] The purpose of the utility model is to provide an evaporator for automobile air conditioning with enhanced drainage function, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An evaporator for an automobile air conditioner with enhanced drainage function comprises a main body structure, a drainage structure, a liquid inlet structure, and a reflux structure. The drainage structure is located at the bottom end of the main body structure, the liquid inlet structure is located at one side of the main body structure, and the reflux structure is located at one side of the main body structure. The main body structure comprises a first refrigeration tube protection box and a second refrigeration tube protection box. The first refrigeration tube protection box is fixedly installed at the bottom end of an internal connection box, and the second refrigeration tube protection box is fixedly installed at one side of a top fixed plate.

[0007] Preferably, the drainage mechanism includes a top fixing plate, a bottom fixing plate, an evaporator water receiving tray, an evaporator water outlet, louver fins, and a drainage baffle. The top fixing plate is fixedly installed on one side of the first refrigeration tube protection box, the bottom fixing plate is fixedly installed on one side of the first refrigeration tube protection box, and the evaporator water receiving tray is fixedly installed inside the bottom fixing plate.

[0008] Preferably, the liquid inlet mechanism includes a refrigerant supply pipe, a first supply pipe fixing ring, a second supply pipe fixing ring, a connection box cover, an internal connection box, and an external connection box. The refrigerant supply pipe is fixedly installed on one side of the external connection box, and the first supply pipe fixing ring is fixedly installed on one side of the external connection box.

[0009] Preferably, the reflux mechanism includes a refrigerant return pipe, a first return pipe fixing ring, a second return pipe fixing ring, and a tubular evaporator, the refrigerant return pipe is fixedly installed on one side of the external connection box, the first return pipe fixing ring is fixedly installed on one side of the external connection box, and the second return pipe fixing ring is fixedly installed on the top of the connection box cover.

[0010] Preferably, the water outlet of the evaporator is opened at the bottom end of the bottom fixing plate, the louver fins are fixedly installed at the bottom end of the top fixing plate, and the drainage baffle is fixedly installed at the bottom end of the louver fins.

[0011] Preferably, the second supply pipe fixing ring is fixedly installed on the top of the connection box cover, the connection box cover is fixedly installed on the top of the internal connection box, the internal connection box is fixedly installed on the top of the first refrigeration pipe protection box, and the external connection box is fixedly installed on one side of the refrigerant supply pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The evaporator for automobile air conditioner with enhanced drainage function is configured such that refrigerant is added to a refrigerant supply pipe fixedly installed on one side of an external connection box, the refrigerant flows through the tubular evaporator, and then flows out from a refrigerant return pipe fixedly installed on one side of the external connection box.

[0014] 2. An evaporator for automobile air conditioning with enhanced drainage function, the louver fins are used to twist the air flow direction along the louver plane direction, forming a "multi-layer flat plate" flow, increasing the heat exchange coefficient and reducing the pressure loss, increasing the angle of the louver fins to make the fin gap larger, and achieve a better drainage effect. A drainage baffle is fixedly installed at the bottom end of the louver fin. The drainage baffle has a certain slope. The drainage baffle with a certain slope can make the gap between the louver fins larger and produce a better drainage effect. The water bridge generated after condensation will be guided by the drainage baffle and flow into the evaporator water receiving tray fixedly installed inside the bottom fixing plate. The bottom end of the bottom fixing plate is provided with an evaporator water outlet, and the condensed water is discharged from the evaporator water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the front cross-section structure of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is an enlarged schematic diagram of the A part of the utility model;

[0019] Figure 5 It is an enlarged schematic diagram of point B of the present utility model.

[0020] In the figure: 100, first refrigeration pipe protection box; 102, second refrigeration pipe protection box; 200, top fixing plate; 201, bottom fixing plate; 202, evaporator water receiving tray; 203, evaporator water outlet; 204, louver fins; 205, drainage baffle; 300, refrigerant supply pipe; 301, first supply pipe fixing ring; 302, second supply pipe fixing ring; 303, connection box cover; 304, internal connection box; 305, external connection box; 400, refrigerant return pipe; 401, first return pipe fixing ring; 402, second return pipe fixing ring; 403, tubular evaporator. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5 As shown, a technical solution provided by the utility model:

[0023] An evaporator for an automobile air conditioner with enhanced drainage function includes a main body structure, a drainage structure, a liquid inlet structure, and a reflux structure. The drainage structure is located at the bottom of the main body structure, the liquid inlet structure is located at one side of the main body structure, and the reflux structure is located at one side of the main body structure. The main body structure includes a first refrigeration tube protection box 100 and a second refrigeration tube protection box 101. The first refrigeration tube protection box 100 is fixedly installed at the bottom of an internal connection box 304, and the second refrigeration tube protection box 101 is fixedly installed on one side of a top fixed plate 200.

[0024] In this example, preferably, the drainage mechanism includes a top fixing plate 200, a bottom fixing plate 201, an evaporator water receiving tray 202, an evaporator water outlet 203, louver fins 204, and a drainage baffle 205. The top fixing plate 200 is fixedly installed on one side of the first refrigeration pipe protection box 100, the bottom fixing plate 201 is fixedly installed on one side of the first refrigeration pipe protection box 100, and the evaporator water receiving tray 202 is fixedly installed inside the bottom fixing plate 201.

[0025] In this example, preferably, the liquid inlet mechanism includes a refrigerant supply pipe 300, a first supply pipe fixing ring 301, a second supply pipe fixing ring 302, a connection box cover 303, an internal connection box 304, and an external connection box 305, the refrigerant supply pipe 300 is fixedly installed on one side of the external connection box 305, and the first supply pipe fixing ring 301 is fixedly installed on one side of the external connection box 305.

[0026] In this example, preferably, the reflux mechanism includes a refrigerant return pipe 400, a first return pipe fixing ring 401, a second return pipe fixing ring 402, and a tubular evaporator 403, the refrigerant return pipe 400 is fixedly installed on one side of the external connection box 305, the first return pipe fixing ring 401 is fixedly installed on one side of the external connection box 305, and the second return pipe fixing ring 402 is fixedly installed on the top of the connection box cover 303.

[0027] In this example, preferably, the evaporator water outlet 203 is opened at the bottom end of the bottom fixing plate 201, the louver fins 204 are fixedly installed at the bottom end of the top fixing plate 200, and the drainage baffle 205 is fixedly installed at the bottom end of the louver fins 204.

[0028] In this example, preferably, the second supply pipe fixing ring 302 is fixedly installed on the top of the connection box cover 303, the connection box cover 303 is fixedly installed on the top of the internal connection box 304, the internal connection box 304 is fixedly installed on the top of the first refrigeration pipe protection box 100, and the external connection box 305 is fixedly installed on one side of the refrigerant supply pipe 300.

[0029] When in use, the evaporator for an automobile air conditioner with enhanced drainage function of this embodiment adds refrigerant through the refrigerant supply pipe 300 fixedly installed on one side of the external connection box 305, and the refrigerant flows through the tubular evaporator 403, and then flows out from the refrigerant return pipe 400 fixedly installed on one side of the external connection box 305.

[0030] The function of the louver fins 204 is to twist the air flow direction along the louver plane direction, forming a "multi-layer flat plate" flow, increasing the heat transfer coefficient and reducing the pressure loss. Increasing the angle of the louver fins 204 makes the fin gap larger and achieves a better drainage effect. A drainage baffle 205 is fixedly installed at the bottom end of the louver fins 204. The drainage baffle 205 has a certain slope. The drainage baffle 205 with a certain slope can make the gap between the louver fins 204 larger and produce a better drainage effect. The water bridge generated after condensation will be guided by the drainage baffle 205 and flow into the evaporator water receiving tray 202 fixedly installed inside the bottom fixing plate 201. An evaporator water outlet 203 is opened at the bottom of the bottom fixing plate 201, and the condensed water is discharged from the evaporator from the evaporator water outlet 203.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An evaporator for automobile air conditioner with enhanced drainage function, comprising a main body mechanism, a drainage mechanism, a liquid inlet mechanism, and a reflux mechanism, characterized in that: The drainage mechanism is located at the bottom end of the main body mechanism, the liquid inlet mechanism is located at one side of the main body mechanism, and the refrigeration mechanism is located at one side of the main body mechanism. The main body mechanism includes a first refrigeration tube protection box (100) and a second refrigeration tube protection box (101). The first refrigeration tube protection box (100) is fixedly installed at the bottom end of the internal connection box (304), and the second refrigeration tube protection box (101) is fixedly installed on one side of the top fixed plate (200).

2. The evaporator for automobile air conditioning with enhanced drainage function according to claim 1, characterized in that: The drainage mechanism comprises a top fixing plate (200), a bottom fixing plate (201), an evaporator water receiving tray (202), an evaporator water outlet (203), louvered fins (204), and a drainage baffle (205); the top fixing plate (200) is fixedly mounted on one side of a first refrigeration tube protection box (100); the bottom fixing plate (201) is fixedly mounted on one side of the first refrigeration tube protection box (100); and the evaporator water receiving tray (202) is fixedly mounted inside the bottom fixing plate (201).

3. The evaporator for automobile air conditioner with enhanced drainage function according to claim 1, characterized in that: The liquid inlet mechanism comprises a refrigerant supply pipe (300), a first supply pipe fixing ring (301), a second supply pipe fixing ring (302), a connection box cover (303), an internal connection box (304), and an external connection box (305); the refrigerant supply pipe (300) is fixedly mounted on one side of the external connection box (305), and the first supply pipe fixing ring (301) is fixedly mounted on one side of the external connection box (305).

4. The evaporator for automobile air conditioning with enhanced drainage function according to claim 1, characterized in that: The reflux mechanism comprises a refrigerant reflux pipe (400), a first reflux pipe fixing ring (401), a second reflux pipe fixing ring (402), and a tubular evaporator (403); the refrigerant reflux pipe (400) is fixedly mounted on one side of an external connection box (305); the first reflux pipe fixing ring (401) is fixedly mounted on one side of an external connection box (305); and the second reflux pipe fixing ring (402) is fixedly mounted on the top of a connection box cover (303).

5. The evaporator for automobile air conditioner with enhanced drainage function according to claim 2, characterized in that: The evaporator water outlet (203) is opened at the bottom end of the bottom fixing plate (201), the louver fin (204) is fixedly installed at the bottom end of the top fixing plate (200), and the drainage baffle (205) is fixedly installed at the bottom end of the louver fin (204).

6. The evaporator for automobile air conditioner with enhanced drainage function according to claim 3, characterized in that: The second supply pipe fixing ring (302) is fixedly mounted on the top of the connection box cover (303), the connection box cover (303) is fixedly mounted on the top of the internal connection box (304), the internal connection box (304) is fixedly mounted on the top of the first refrigeration pipe protection box (100), and the external connection box (305) is fixedly mounted on one side of the refrigerant supply pipe (300).

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