Evaporator capable of discharging condensate water easily

Abstract

The utility model discloses an evaporator capable of discharging condensate water easily. The evaporator comprises an evaporator body, a water collecting tank and a fan. The evaporator is composed of an upper collecting pipe, a flat pipe set and a lower collecting pipe. The flat pipe set is arranged between the upper collecting pipe and the lower collecting pipe. The flat pipe consists of two groups of planes, a concave arc surface and a convex arc surface; a plurality of groups of inclined guide strips are sequentially arranged on the planes on the two sides of the flat tube from top to bottom; the concave arc surface of the flat tube is a vertical guide groove, and the tail end of the inclined guide strip extends to the edge of the vertical guide groove; the lower flow collecting pipe is composed of an outer flow collecting cavity and an inner flow collecting cavity, and the top of the outer flow collecting cavity and the top of the inner flow collecting cavity are continuous inclined planes; the bottom of the water collecting tank is of a gradient structure which is lowered from the central axis to the two sides and provided with a water outlet. According to the utility model, the inclined guide strip is additionally arranged, so that the sliding stroke of condensate water is reduced; the top of the lower collecting pipe is designed to be an inclined plane, and the interior of the water collecting tank is optimized, so that drainage of condensate water is accelerated, and internal condensate water accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the field of vehicle evaporators, in particular to an evaporator with easy discharge of condensed water. Background Art

[0002] The evaporator's surface temperature is low, and when it falls below the ambient air's dew point, moisture in the air condenses on its surface. This condensed water accumulates between the flat tubes, forming water bridges or ice. This can block the air passages, reduce the heat exchange area, increase air resistance, and thus reduce the evaporator's heat transfer capacity. Traditional flat tubes have smooth surfaces, so condensed water slides a long distance across them, resulting in inefficient condensate shedding. Furthermore, because the top of the lower header is horizontal, condensed water easily covers the lower header and freezes in winter, affecting heat transfer efficiency. Utility Model Content

[0003] The utility model aims to provide an evaporator which is not prone to water accumulation and has high drainage efficiency and is easy to discharge condensed water.

[0004] The purpose of the utility model is achieved as follows: an evaporator with easy discharge of condensed water, comprising an evaporator, a water collecting tank, and a fan, wherein the fan is placed on one side of the water collecting tank, and the evaporator is placed in the water collecting tank;

[0005] The evaporator is composed of an upper header, a flat tube group, and a lower header. The flat tube group is placed between the upper and lower headers. The flat tube group is composed of a plurality of flat tubes. Each flat tube is composed of two groups of flat surfaces, an inner concave arc surface, and an outer convex arc surface. Multiple groups of oblique guide bars are evenly arranged on the flat surfaces on both sides of the flat tube from top to bottom. The inner concave arc surface of the flat tube is a vertical guide groove, and the ends of the oblique guide bars extend to the edge of the vertical guide groove.

[0006] The lower manifold is composed of an outer manifold and an inner manifold. The outer manifold is connected to the inner manifold side, and the tops of the outer manifold and the inner manifold are set as continuous inclined surfaces.

[0007] The bottom of the water collecting tank is arranged as a slope structure which descends from the central axis toward both sides, and a water outlet is arranged at the bottom of the water collecting tank.

[0008] Preferably, the inclination angle of the oblique guide bar is less than 5°, and when the oblique guide bar is installed, the highest point of the oblique guide bar is close to the fan side.

[0009] Preferably, there are two water outlets, which are respectively located at the lowest points of the slope on both sides of the water collecting tank, and the two water outlets are respectively connected to branch pipes and merge into the main pipe.

[0010] Preferably, an arc-shaped guide plate is provided at the bottom end of the oblique guide strip near the concave arc surface, and the end of the arc-shaped guide plate penetrates into the concave arc surface.

[0011] Compared with the prior art, the present invention is beneficial in that:

[0012] 1. An inclined guide strip is installed on both sides of the flat tube. When the fan blows, the water droplets on the surface of the flat tube will slide down along the flat tube. The inclined guide strip can quickly guide the water droplets to the outer edge of the flat tube, preventing the water droplets from sliding a long distance on the side of the flat tube, thereby improving the efficiency of condensed water discharge.

[0013] 2. An inner concave arc surface is set on the side of the flat tube away from the fan, and an arc-shaped guide plate is set to effectively guide water droplets into the inner concave arc surface; compared with the traditional outer arc surface, it can prevent water droplets from sliding onto the outer arc surface and flowing to the other side;

[0014] 3. An inclined surface is set at the bottom of the lower manifold to effectively and quickly guide the water droplets sliding down the flat tubes to the outside of the lower manifold to avoid water accumulation on the lower manifold;

[0015] 4. There is a water outlet on both sides of the water collecting tank, which greatly improves the water outlet efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic structural diagram of the evaporator of the present utility model.

[0018] Figure 3 This is a structural diagram of the flat tube of the utility model.

[0019] Figure 4 It is a side structural schematic diagram of the lower header of the utility model.

[0020] Figure 5 This is a schematic diagram of the bottom structure of the water collecting tank of the utility model.

[0021] Among them, 1 evaporator, 2 water collecting tank, 201 water outlet, 3 fan, 4 upper collecting pipe, 5 flat tube group, 6 lower collecting pipe, 501 flat tube, 5011 plane, 50111 inclined guide strip, 5012 inner concave arc surface, 5013 outer convex arc surface, 6 lower collecting pipe, 601 outer collecting cavity, 602 inner collecting cavity, 7 arc guide plate. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0023] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the utility model product is usually placed when in use. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] like Figure 1-5 As shown, an evaporator for easy discharge of condensed water includes an evaporator 1, a water collecting tank 2, and a fan 3. The fan 3 is placed on one side of the water collecting tank 1, and the evaporator 1 is placed in the water collecting tank 2. A communication channel is provided on the side of the water collecting tank to connect with the fan, so that the fan wind is introduced into the interior;

[0026] The evaporator 1 consists of an upper header 4, a flat tube group 5, and a lower header 6. The flat tube group 5 is placed between the upper header 4 and the lower header 6. The flat tube group 5 is composed of a plurality of flat tubes 501. The flat tube 501 consists of two groups of flat surfaces 5011, an inner concave arc surface 5012, and an outer convex arc surface 5013. Multiple groups of oblique guide bars 50111 are evenly arranged on the flat surfaces 5011 on both sides of the flat tube from top to bottom. The inner concave arc surface 5012 of the flat tube is a vertical guide groove, and the ends of the oblique guide bars 50111 extend to the edge of the vertical guide groove. The lower header 6 consists of an outer header 601 and an inner header 602. The outer header 601 is connected to the inner header 602 at the side. The tops of the outer header 601 and the inner header 602 are set as continuous inclined surfaces. The inclined surfaces can accelerate the discharge efficiency of the flat tubes after they fall into the lower header.

[0027] like Figure 5 As shown, the bottom of the water collecting tank 2 is set to a slope structure that decreases from the central axis to both sides. A water outlet 201 is provided at the bottom of the water collecting tank 2. The slope structure can improve the circulation efficiency of the condensed water, and at the same time, the water droplets generated by the flat tube can flow to the water outlet nearby.

[0028] like Figure 2-3 As shown, the inclination angle of the oblique guide bar 50111 is less than 5°. When the oblique guide bar is installed, the highest point of the oblique guide bar 50111 is close to the side of the fan 3. The smaller inclination angle can avoid obstruction of the fan air outlet and improve the circulation efficiency.

[0029] like Figure 1 、 5 As shown, there are two water outlets 201, which are located at the lowest points of the slope on both sides of the water collecting tank 2. The two water outlets are respectively connected to branch pipes and merge into the main pipe. The two groups of water outlets can speed up the drainage speed of water droplets, and the water droplets generated by the flat tubes can flow to the nearest water outlet.

[0030] like Figure 3 As shown, an arc-shaped guide plate 7 is provided at the bottom end of the inclined guide bar 50111 near the concave arc surface 5012, and the end of the arc-shaped guide plate 7 is deep into the concave arc surface 5012. When the water droplets slide to the end on the inclined guide bar, the arc-shaped guide plate guides the water droplets to the concave arc surface, thereby accelerating the sliding of the water droplets.

[0031] The working principle of the present invention is described as follows: when the flat tubes are installed, the direction of the flat tubes is adjusted according to the position of the fan to ensure that the highest point of the oblique guide strip is close to one side of the fan; during operation, after water droplets are generated on the flat tubes, the water droplets slide down the flat tubes under the action of the fan and encounter the oblique guide strips, which can quickly guide the water droplets to the outside of the flat tubes, thereby preventing the outside of the flat tubes from being covered with water droplets, thereby improving the heat exchange efficiency of the flat tubes.

[0032] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. An evaporator with easy discharge of condensed water, comprising an evaporator, a water collecting tank, and a fan, wherein the fan is placed on one side of the water collecting tank, and the evaporator is placed in the water collecting tank; characterized in that: The evaporator is composed of an upper header, a flat tube group, and a lower header. The flat tube group is placed between the upper and lower headers. The flat tube group is composed of a plurality of flat tubes. Each flat tube is composed of two groups of flat surfaces, an inner concave arc surface, and an outer convex arc surface. Multiple groups of oblique guide bars are evenly arranged on the flat surfaces on both sides of the flat tube from top to bottom. The inner concave arc surface of the flat tube is a vertical guide groove, and the ends of the oblique guide bars extend to the edge of the vertical guide groove. The lower manifold is composed of an outer manifold and an inner manifold. The outer manifold is connected to the inner manifold side, and the tops of the outer manifold and the inner manifold are set as continuous inclined surfaces. The bottom of the water collecting tank is arranged as a slope structure which descends from the central axis toward both sides, and a water outlet is arranged at the bottom of the water collecting tank.

2. The evaporator with easy condensed water discharge according to claim 1, characterized in that: The inclination angle of the oblique guide bar is less than 5°. When the oblique guide bar is installed, the highest point of the oblique guide bar is close to the fan side.

3. The evaporator with easy condensed water discharge according to claim 1, characterized in that: There are two water outlets, which are respectively located at the lowest points of the slope on both sides of the water collecting tank. The two water outlets are respectively connected to branch pipes and merge into the main pipe.

4. The evaporator with easy condensed water discharge according to claim 1, characterized in that: An arc-shaped guide plate is provided at the bottom end of the oblique guide strip near the concave arc surface, and the end of the arc-shaped guide plate penetrates into the concave arc surface.

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