An evaporator structure

Abstract

The utility model discloses an evaporator structure, including both side sheets and install on the evaporator coil of both side plates, still include bearing, the inner ring of bearing is fixed in every evaporator coil straight pipe section, and the outer ring circumferential outside surface of bearing is fixed with the fan blade, and the outer ring axial one end of bearing is connected with soft brush strip, and soft brush strip and corresponding straight pipe section circumferential outside surface contact. The utility model has the function of scanning the condensed water on evaporator coil straight pipe section and can effectively prevent the frost problem caused by the excessive accumulation of condensed water.

Description

Technical Field

[0001] This utility model relates to the field of evaporators, specifically an evaporator structure. Background Technology

[0002] In refrigeration equipment such as air conditioners, the evaporator is one of the most important components. Taking an air conditioner as an example, the high-temperature, high-pressure refrigerant gas output by the compressor is condensed into a liquid by the condenser, and then further cooled by the throttling element before entering the evaporator. The fan in the evaporator forms an airflow that passes through the evaporator, and the airflow exchanges heat with the low-temperature refrigerant in the evaporator, thus producing cool air. Finally, the low-temperature refrigerant in the evaporator absorbs heat, turns into a gaseous state, and returns to the compressor.

[0003] In existing air conditioning systems, the low surface temperature of the evaporator makes it easy for moisture in the air to condense on it, forming condensate. Excessive condensate buildup leads to frost formation on the evaporator, reducing cooling efficiency. Current technology typically uses a heater on the evaporator for defrosting. However, this electric heating method only defrosts during the frosting stage and is ineffective against condensate on the evaporator. Utility Model Content

[0004] This invention provides an evaporator structure to solve the problem of excessive condensate accumulation in existing evaporators.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An evaporator structure includes two side plates (1) and an evaporator coil mounted on the two side plates (1). The portion of the evaporator coil located between the two side plates consists of multiple straight pipe sections (2). The structure also includes a bearing (3). The inner ring (3.1) of the bearing (3) is fixed to the portion of each straight pipe section (2) near one of the side plates. A fan blade (4) is fixed to the outer circumferential side of the outer ring (3.2) of the bearing (3). A soft brush strip (5) is connected to one axial end of the outer ring (3.2) of the bearing (3). The soft brush strip (5) contacts the corresponding outer circumferential side of the straight pipe section (2).

[0006] Furthermore, the outer ring (3.2) of the bearing (3) is provided with an annular groove (3.3) on one end face of the axial direction of the adjacent side plate (1), and the side plate (1) is provided with a sliding groove on the side facing the bearing (3). One end of the sliding groove is closed, and the other end of the sliding groove is a groove opening, and the groove opening is located on the side of the side plate (1) facing the bearing (3). A pin (6) is slidably installed in the groove. One end of the pin (6) passes through the groove opening and is pinned into the annular groove (3.3) of the outer ring (3.2) of the bearing (3). The end of the pin (6) located in the groove is connected to a cap. A spring (7) is connected between the cap and the groove opening. The spring (7) is sleeved on the outside of the pin (6) between the cap and the groove opening. The side of the cap facing the closed end of the slide is designed as a magnetic attraction surface, and an electromagnet is installed inside the closed end of the slide.

[0007] Furthermore, the bearing (3) is a ball bearing.

[0008] In this invention, a bearing is installed on the straight section of the evaporator coil. A soft brush strip connected to the outer ring of the bearing contacts the straight section, and a fan blade is connected to the surface of the outer ring of the bearing. When the air generated by the evaporator fan blows across the evaporator, it causes the outer ring of the bearing to rotate relative to the inner ring. As the outer ring rotates, it drives the soft brush strip to sweep across the straight section of the evaporator coil, thereby sweeping away the condensate in the straight section and preventing condensate from accumulating on the straight section of the evaporator.

[0009] In this invention, initially, the pin in the side plate groove is inserted into the outer ring groove of the bearing and abuts against the bottom of the outer ring groove. This friction prevents the outer ring of the bearing from rotating around the inner ring. When it is necessary to remove condensate from the straight pipe section of the evaporator, the electromagnet inside the side plate is energized. The electromagnet attracts the cap connected to the pin, thus releasing the pin from contact with the bottom of the outer ring groove of the bearing. This allows the outer ring of the bearing to rotate around the inner ring to remove the condensate. At this time, the spring on the pin is stretched, creating elastic force. After the water removal is completed, the electromagnet is de-energized, and the pin resets and re-inserts into the outer ring groove of the bearing under the action of the spring force. Therefore, this invention allows for controllable water removal.

[0010] Compared with the prior art, the evaporator structure of this utility model has the function of sweeping away the condensate on the straight pipe section of the evaporator coil, thus effectively preventing the frosting problem caused by excessive condensate accumulation, and the operation is controllable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0012] Figure 2 This is an enlarged view of a portion of the bearing and side plate structure in an embodiment of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 , Figure 2As shown, this embodiment discloses an evaporator structure, including two side plates 1 that are symmetrical about left and right, and evaporator coils installed on the two side plates 1. The evaporator coils are multi-bent and alternately pass through the two side plates 1, thereby installing the evaporator coils on the two side plates 1, and the portion of the evaporator coils between the two side plates 1 consists of multiple straight pipe sections 2 formed by interlacing.

[0015] This embodiment also includes a bearing 3, which is a ball bearing. The inner ring 3.1 of the bearing 3 is fixed to a section of each straight pipe segment 2 near the left side plate 1, and the outer ring 3.2 of the bearing 3 can rotate relative to the inner ring 3.1. Multiple fan blades 4 are fixed to the outer circumferential surface of the outer ring 3.2 of the bearing 3, and the fan blades 4 are evenly distributed along the circumference of the bearing 3. The outer ring 3.2 and the fan blades 4 together form a fan wheel structure. When subjected to the wind force generated by the fan equipped in the evaporator, the fan wheel structure formed by the outer ring 3.2 and the fan blades 4 rotates around the inner ring 3.1.

[0016] A bar is connected to the right end of the outer ring 3.2 of bearing 3. The bar extends to the outer side of the corresponding straight pipe section 2 of bearing 3. A soft brush strip 5 is fixed to the side of the bar facing the outer side of the corresponding straight pipe section 2. The soft brush strip 5 is made of soft hydrophobic material and is in contact with the outer side of the corresponding straight pipe section 2. When the outer ring 3.2 rotates, it drives the bar and the soft brush strip 5 to rotate around the corresponding straight pipe section 2. The contact between the soft brush strip 5 and the straight pipe section 2 can sweep away the condensate on the straight pipe section 2. Since the soft brush strip 5 is made of hydrophobic material, the condensate on the straight pipe section 2 cannot be adsorbed on the soft brush strip 5. Instead, it is swept away by the soft brush strip 5 and falls downward under the action of gravity, eventually falling into the water collection tray equipped with the evaporator.

[0017] like Figure 2 As shown, in this embodiment, the outer ring 3.2 of the bearing 3 is provided with an annular groove 3.3 on the axial left end face of the left side plate 1. The right side face of the left side plate 1 facing the bearing 3 is provided with a sliding groove extending in the horizontal direction. The left end of the sliding groove is closed in the left side plate 1, and the right end of the sliding groove is a diameter reduction groove, which is located on the right side face of the left side plate 1 facing the bearing 3.

[0018] A pin 6 is slidably installed in the slide groove. The right end of the pin 6 passes through the reduced diameter slot of the slide groove and is inserted into the annular groove 3.3 on the left end face of the outer ring 3.2 of the bearing 3. The right end of the pin 6 abuts against the bottom of the annular groove 3.3 of the outer ring 3.2 of the bearing 3.

[0019] A cap is connected to the left end of the pin 6 located within the slide groove. A spring 7 is connected between the cap and the narrowed opening of the slide groove, and the spring 7 is sleeved outside a section of the pin 6 between the cap and the narrowed opening of the slide groove. The side of the cap facing the closed end of the slide groove is designed as a magnetic surface. An electromagnet 8 is installed inside the closed end of the slide groove, and the electromagnet 8 is connected to an external power source via a wire.

[0020] Initially, the air conditioner is working normally, and the pin 6 is inserted into the annular groove 3.3 of the outer ring 3.2 of the bearing 3. Since the right end of the pin 6 is blocked by the bottom of the annular groove 3.3 of the outer ring 3.2 of the bearing 3, the outer ring 3.2 of the bearing 3 is restricted from rotating relative to the inner ring 3.1 under the action of friction.

[0021] When it is necessary to clean the water from the straight pipe section 2 of the evaporator coil, the electromagnet 8 is energized. The electromagnet 8 generates a magnetic force on the magnetic surface of the cap at the left end of the pin 6, causing the cap and pin 6 to move to the left as a whole until the right end of the pin 6 disengages from the bottom of the annular groove 3.3 of the outer ring 3.2 of the bearing 3, or until the right end of the pin 6 completely disengages from the annular groove 3.3 of the outer ring 3.2. At this point, the outer ring 3.2 of the bearing 3 is released from its restraints and can rotate around the inner ring 3.1. Then, under the airflow generated by the fan equipped in the evaporator, the impeller structure formed by the outer ring 3.2 and the fan blades 4 rotates around the inner ring 3.1, thereby causing the soft brush strip 5 to rotate around the straight pipe section 2 to sweep away the condensate on the straight pipe section 2.

[0022] It should be noted that, due to the small spacing between the straight pipe sections in the evaporator coil, the bearing 3 in this embodiment needs to be a smaller bearing in order to meet the installation requirements of the small spacing.

[0023] Furthermore, some evaporator coils have multiple heat dissipation fins on each straight pipe section 2, and the heat dissipation fins at the same position on different straight pipe sections 2 are connected as one piece. For this type of finned evaporator, when applying this embodiment, it is necessary to disconnect the heat dissipation fins at the same position on different straight pipe sections 2 in order to provide space for the flexible brush strip 5 to rotate between adjacent straight pipe sections. At the same time, in this embodiment, the flexible brush strip 5 corresponding to each straight pipe section needs to be set as multiple strands, so that each strand of flexible brush strip 5 of each straight pipe section is inserted into the gap between adjacent fins on the corresponding straight pipe section 2, so that the flexible brush strip 5 can contact the straight pipe section 2.

[0024] Furthermore, since this embodiment requires the electromagnet 8 to be kept energized during operation, and the electromagnet 8 generates heat when energized, although this embodiment can achieve the function of sweeping away condensate, it is not suitable for prolonged operation to avoid the heat generated by the electromagnet 8 significantly affecting the cooling effect. Essentially, this embodiment avoids the problem of excessive condensate accumulation in the straight pipe section 2 of the evaporator coil, leading to frost, by repeatedly sweeping away condensate in short bursts.

[0025] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0026] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. An evaporator structure, comprising two side plates (1) and evaporator coils mounted on the side plates (1), wherein the portion of the evaporator coils located between the two side plates consists of multiple straight pipe sections (2), characterized in that, It also includes a bearing (3), the inner ring (3.1) of the bearing (3) is fixed to the side plate of each straight pipe section (2) near one side, the outer ring (3.2) of the bearing (3) is fixed with a fan blade (4) on the outer side, and a soft brush strip (5) is connected to one end of the outer ring (3.2) of the bearing (3) in the axial direction, and the soft brush strip (5) is in contact with the corresponding straight pipe section (2) on the outer side.

2. The evaporator structure according to claim 1, characterized in that, The outer ring (3.2) of the bearing (3) has an annular groove (3.3) on one end face of the axial direction of the adjacent side plate (1). The side plate (1) has a sliding groove on the side facing the bearing (3). One end of the sliding groove is closed, and the other end of the sliding groove is a groove opening, which is located on the side of the side plate (1) facing the bearing (3). A pin (6) is slidably installed in the groove. One end of the pin (6) passes through the groove opening and is pinned into the annular groove (3.3) of the outer ring (3.2) of the bearing (3). The end of the pin (6) located in the groove is connected to a cap. A spring (7) is connected between the cap and the groove opening. The spring (7) is sleeved on the outside of the pin (6) between the cap and the groove opening. The side of the cap facing the closed end of the slide is designed as a magnetic attraction surface, and an electromagnet is installed inside the closed end of the slide.

3. An evaporator structure according to claim 1 or 2, characterized in that, The bearing (3) is a ball bearing.

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