Electric heating structure and air conditioner applying same

Abstract

The invention discloses an electric heating structure and an air conditioner applying the same, the electric heating structure is applied to an evaporator, the evaporator is provided with an open space formed by multiple bends, the electric heating structure comprises a heating body and a heat dissipation unit, the shape of the heating body is matched with that of the evaporator, and the heating body is located in the open space; the heat dissipation unit is arranged on the heating body so that heat generated by the heating body can be evenly transmitted to the evaporator. According to the electric heating structure, due to the fact that the heating body is matched with the evaporator and the heat dissipation unit is arranged on the heating body, after the heating body is powered on, heat is dissipated to the periphery through the heat dissipation unit, and compared with a traditional heating body, the distribution range of the heating body is wide, and the heating body is provided with the heat dissipation unit; therefore, the heating effect can be greatly improved, the evaporator is prevented from frosting, and the technical problem that the heat exchange efficiency is affected due to fin deformation caused by the temperature difference of the evaporator is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioners and relates to an electric heating structure and an air conditioner using the same. Background Art

[0002] In order to improve the effect of the air conditioner, an electric heating structure is generally installed in the air conditioner. The electric heating structure works together with the compressor to improve the heating effect.

[0003] The traditional electric heating structure is long and located inside the evaporator. During the operation of the air conditioner, the temperature of the air around the electric heating structure rises faster, that is, the temperature inside the evaporator rises faster, while the air around the two ends of the evaporator is farther away from the electric heating structure, so the temperature rises slower, resulting in a temperature difference. This temperature difference may cause the evaporator fins to deform to a certain extent, affecting the heat exchange efficiency of the evaporator, and thus reducing the quality of the entire air conditioner. Summary of the invention

[0004] In view of this, the present invention provides an electric heating structure and an air conditioner using the same, wherein the electric heating structure can evenly transfer heat to the periphery of the evaporator, thereby solving the technical problem that the evaporator fins are deformed due to temperature difference, thereby affecting the heat exchange efficiency.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides an electric heating structure, which is applied to an evaporator, wherein the evaporator has an open space formed by multiple bends, and the electric heating structure includes a heating body and a heat dissipation unit. The heating body matches the shape of the evaporator and is located in the open space, and the heat dissipation unit is opened on the heating body so that the heat generated by the heating body can be evenly transferred to the evaporator.

[0006] In some embodiments, the heat dissipation unit includes a through hole opened on the heating body.

[0007] In some embodiments, the through holes are square in shape and there are a plurality of them, and the plurality of through holes are distributed in rows and columns on the heating body.

[0008] In some embodiments, a copper tube is passed through the bend of the heating body.

[0009] In some embodiments, the electric heating structure also includes a condensation water collection unit, one end of which is located on the evaporator for collecting condensation water generated by the evaporator, and the other end of the condensation water collection unit is located at the end of the heating body for draining the condensation water out of the heating body.

[0010] In some embodiments, the condensation water collection unit includes a water absorption strip, a guide groove and a water receiving groove. The water absorption strip and the guide groove are both arranged on the side of the heating body facing the evaporator, and the water absorption strip is connected to the guide groove. The water receiving groove is located at the bottom of both sides of the heating body.

[0011] In some embodiments, the water absorption strip is made of silica gel, and there are multiple water absorption strips, and the multiple water absorption strips are distributed on the heating body along the vertical direction; and / or the multiple guide grooves are provided, and the multiple guide grooves are distributed on the heating body along the horizontal direction.

[0012] According to another aspect of the present application, an embodiment of the present invention provides an air conditioner, which includes the above-mentioned electric heating structure.

[0013] In some embodiments, when the electric heating structure includes a condensation water collection unit, and the condensation water collection unit includes a water receiving tank, the air conditioner also includes a humidity adjustment unit, and the humidity adjustment unit includes a controller, a humidity detection component and a pump body, the humidity detection component is arranged indoors, the pump body is arranged at the bottom of the water receiving tank, and the controller is arranged in the air conditioner; the humidity detection component can transmit the detected indoor humidity to the controller, and the controller controls the pump body according to the indoor humidity to make it not work or make it work and thereby transport the water in the water receiving tank to the heating body.

[0014] In some embodiments, the condensed water collection unit further includes a water level sensor and a drain valve connected to the controller, the water level sensor is disposed in the water receiving trough, and the drain valve is disposed at the bottom of the water receiving trough.

[0015] Compared with the prior art, the electric heating structure of the present invention has at least the following beneficial effects:

[0016] The electric heating structure provided by the present invention is applied to an evaporator, and the evaporator has an open space formed by multiple bends. The electric heating structure includes a heating body and a heat dissipation unit. The heating body matches the shape of the evaporator and is located in the open space. The heat dissipation unit is opened on the heating body so that the heat generated by the heating body can be evenly transferred to the evaporator.

[0017] When the heating body of the present invention matches the shape of the evaporator and is located in the open space, compared with the traditional heating body with a long strip structure, the heating body of the present invention obviously covers a larger area of ​​the evaporator, which alleviates the problem of fin deformation of the evaporator due to large temperature differences to a certain extent. And, on the basis of the above, the present invention also includes a heat dissipation unit, which is arranged on the heating body and can make the heat generated by the heating body be evenly transferred to the evaporator. This further ensures the uniformity of the evaporator temperature. It can be seen that the electric heating structure provided by the present invention, since the heating body matches the evaporator and a heat dissipation unit is arranged on the heating body, after the heating body is powered on, the heat is dissipated to the surroundings through the heat dissipation unit. Since the heating body has a wider distribution range than the traditional heating body and has a heat dissipation unit, it can greatly improve the heating effect and prevent the evaporator from frosting, thereby solving the technical problem that the evaporator fins are deformed due to temperature differences and thus affect the heat exchange efficiency.

[0018] The air conditioner provided by the present invention is designed based on the above-mentioned electric heating structure. Its beneficial effects refer to the beneficial effects of the above-mentioned electric heating structure, which will not be described in detail here.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0021] Figure 1 is a structural schematic diagram of an electric heating structure provided by an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a heating body in an electric heating structure provided by an embodiment of the present invention;

[0023] Figure 3 is a cross-sectional view of a heating body in an electric heating structure provided by an embodiment of the present invention;

[0024] Figure 4 is a block diagram of a humidity adjustment unit in an electric heating structure provided by an embodiment of the present invention;

[0025] Figure 5is a block diagram of a condensed water collection unit in an electric heating structure provided by an embodiment of the present invention;

[0026] Figure 6 It is a working flow chart of an electric heating structure provided by an embodiment of the present invention.

[0027] in:

[0028] 1. Evaporator; 11. Bending; 12. Open space; 2. Heating body; 21. Copper tube; 3. Heat dissipation unit; 4. Condensate collection unit; 41. Water absorption strip; 42. Diversion groove; 43. Water receiving groove; 44. Water level sensor; 45. Drain valve; 5. Humidity adjustment unit; 51. Controller; 52. Humidity detection element; 53. Pump body. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0030] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but are not necessarily used to describe a specific order or sequence; the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the referred device or element must have a specific direction or position, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] This embodiment provides an electric heating structure, such as Figure 1-6As shown, it is applied to an evaporator 1, and the evaporator 1 has an open space 12 formed by multiple bends 11. The electric heating structure includes a heating body 2 and a heat dissipation unit 3. The heating body 2 matches the shape of the evaporator 1 and is located in the open space 12. The heat dissipation unit 3 is opened on the heating body 2 so that the heat generated by the heating body 2 can be evenly transferred to the evaporator 1.

[0034] Specifically, the evaporator 1 is a very important component among the four major components of refrigeration. The low-temperature condensed "liquid" passes through the evaporator to exchange heat with the outside air, "gasify" and absorb heat to achieve the effect of refrigeration. The evaporator 1 is mostly a bent structure. In this embodiment, the evaporator 1 has multiple bends 11. For example, assuming that the evaporator 1 includes a first surface, a second surface and a third surface, there is a first angle between the first surface and the second surface when they are connected, and the angle is the first bend. When the second surface and the third surface are connected, there is a second angle between the two, and the angle is the second bend. Among them, the first angle and the second angle are both acute angles, so that an open space 12 is formed at the position facing the first angle and the second angle. In order to improve the effect of the air conditioner, a heating body 2 is set in the open space 12. The heating body 2 works together with the compressor to improve the cooling and heating effects of the air conditioner.

[0035] The traditional electric heating structure is long and is located inside the evaporator. During the operation of the air conditioner, the temperature of the airflow around the electric heating structure rises faster, that is, the temperature inside the evaporator rises faster, while the air around the two ends of the evaporator rises slower because it is far away from the electric heating structure, thereby generating a temperature difference. This temperature difference may cause the fins of the evaporator to deform to a certain extent, affecting the heat exchange efficiency of the evaporator, thereby reducing the quality of the entire air conditioner. In this embodiment, the heating body 2 matches the shape of the evaporator 1 and is located in the open space 12, that is, the heating body 2 also includes three faces. For a more detailed and clear technical embodiment, it is assumed that the heating body 2 includes a fourth face, a fifth face and a sixth face, then the fourth face corresponds to the first face mentioned above, the fifth face corresponds to the second face mentioned above, the sixth face corresponds to the third face mentioned above, and there is a third angle between the fourth face and the fifth face, the third angle is the same as the first angle mentioned above, and there is a fourth angle between the fifth face and the sixth face, the fourth angle is the same as the second angle mentioned above. Of course, the evaporator 1 can also include four faces, five faces, etc., which are not specifically limited here.

[0036] When the heating body 2 is matched with the shape of the evaporator 1 and is located in the open space 12, compared with the traditional long strip structure of the heating body 2, the heating body 2 of this embodiment obviously covers a larger area of ​​the evaporator, which to a certain extent alleviates the fin deformation problem of the evaporator 1 due to the large temperature difference.

[0037] Furthermore, on the basis of the above, the present embodiment further includes a heat dissipation unit 3, which is disposed on the heating body 2 and enables the heat generated by the heating body 2 to be uniformly transferred to the evaporator 1. This further ensures the uniformity of the temperature of the evaporator 1.

[0038] It can be seen that the electric heating structure provided in this embodiment, since the heating body 2 is matched with the evaporator 1, and a heat dissipation unit 3 is arranged on the heating body 2, after the heating body 2 is powered on, the heat is dissipated to the surroundings through the heat dissipation unit 3. Since the heating body 2 has a wider distribution range than the traditional heating body and has the heat dissipation unit 3, it can greatly improve the heating effect and prevent the evaporator 1 from frosting; in this way, under extremely low temperature conditions, heating by the compressor alone may not meet the user's heating needs, and the electric heating structure can provide additional heat to ensure that the indoor temperature reaches the value set by the user; so that the air conditioner can quickly reach the optimal state and start quickly.

[0039] In a specific embodiment, the heat dissipation unit 3 includes a through hole opened on the heating body 2 .

[0040] Specifically, through holes are provided on the heating body 2, that is, the heating body 2 is a mesh structure, which allows heat to be evenly transferred to the airflow around the evaporator 1 on the one hand, thereby achieving the purpose of improving the heat exchange efficiency; on the other hand, the provision of the through holes allows the wind around the evaporator 1 to flow normally without wind blocking, thereby avoiding noise problems.

[0041] In a specific embodiment, the through holes are square and there are a plurality of them, and the plurality of through holes are distributed in rows and columns on the heating body 2 .

[0042] Specifically, each face of the heating body 2 is provided with square through holes arranged in rows and columns. The square through holes have a large heat dissipation area, a good ventilation effect, and are easy to process. Of course, the through holes may be rectangular, triangular, or polygonal. In addition, the square through holes run through the length and width of each face, that is, the through holes basically cover the entire heating body 2, so that the heat generated by the heating body 2 can be evenly transferred to the evaporator 1, thereby further ensuring the uniformity of the temperature of the evaporator 1.

[0043] In a specific embodiment, a copper tube 21 is inserted into the bend of the heating body 2. Although the heating body 2 has multiple faces, these faces are integrally formed. Inserting the copper tube 21 into the bend can increase the stability of the bend and prevent the heating body 2 from being easily broken or damaged at the bend. In addition, copper has good thermal conductivity, which can transfer heat, making the heat on the heating body 2 more uniform, thereby ensuring that the periphery of the evaporator 1 has a uniform temperature and avoiding the problem of fin deformation caused by large temperature differences.

[0044] In a specific embodiment, the electric heating structure also includes a condensation water collection unit 4, one end of the condensation water collection unit 4 is located on the evaporator 1 for collecting the condensation water generated by the evaporator 1, and the other end of the condensation water collection unit 4 is located at the end of the heating body 2 for draining the condensation water to the outside of the heating body 2.

[0045] In the cooling mode of the air conditioner, wind is simultaneously delivered from three sides of the evaporator 1. Since the hot air inside the evaporator 1 meets the cold air, condensation is easily formed inside the evaporator 1, which will affect the working performance of the evaporator 1 and the heating body 2. Based on this, the present embodiment adds a condensation water collection unit 4, one end of which is located on the evaporator 1, and the other end of which is located at the end of the heating body 2. In this way, with the above structure, when the hot air inside the evaporator 1 meets the cold air, condensation water is generated on the surface of the evaporator 1, which is collected by the condensation water collection unit 4 and transported to the outside of the heating body 2, thereby avoiding the condensation water from affecting the evaporator 1 and the heating body 2.

[0046] In a specific embodiment, the condensation water collection unit 4 includes a water absorption strip 41, a guide groove 42 and a water receiving groove 43. The water absorption strip 41 and the guide groove 42 are both arranged on the side of the heating body 2 facing the evaporator 1, and the water absorption strip 41 is connected to the guide groove 42. The water receiving groove 43 is located at the bottom of both sides of the heating body 2.

[0047] More specifically, the water absorption strip 41 is made of silica gel, which is pasted on the heating body 2 by gluing. The silica gel material has good water absorption. The interior of the silica gel is a nano-scale microporous structure, and there are a large number of hydroxyl groups on its surface. Through the mutual attraction between molecules, the hydroxyl groups are affinity with the water molecules in the air, thereby achieving water absorption. In addition, the silica gel material can withstand high temperatures above 200 degrees Celsius and prevent mold. The water absorption strip 41 is arranged on the side of the heating body 2 facing the evaporator 1, so that when the hot air inside the evaporator 1 meets the cold air and condensed water is formed on the evaporator 1, when the air enters, the wind will blow the condensed water on the evaporator 1 onto the heating body 2, and then it will be absorbed by the water absorption strip 41 arranged on the heating body 2.

[0048] The guide groove 42 is arranged on the side of the heating body 2 facing the evaporator 1 , and intersects with the water absorption strip 41 , so that when the water absorption strip 41 is full of water, the water will flow into the guide groove 42 and then into the water receiving groove 43 .

[0049] In a specific embodiment, the water absorption strip 41 is made of silica gel, and there are multiple water absorption strips 41, and the multiple water absorption strips 41 are distributed on the heating body 2 along the vertical direction; and / or the multiple guide grooves 42 are provided, and the multiple guide grooves 42 are distributed on the heating body 2 along the horizontal direction.

[0050] More specifically, a plurality of water absorption strips 41 are vertically arranged between two adjacent columns of through holes, and a plurality of guide grooves 42 are horizontally arranged between two adjacent rows of through holes. In this way, the water absorption strips 41 and the guide grooves 42 are crossed horizontally and vertically, so that condensed water at any position can be collected.

[0051] That is to say, after adopting the condensation water collection unit 4 provided in this embodiment, when air enters, the wind will blow the water on the evaporator 1 toward the heating body 2. At this time, the water absorption strip 41 will absorb the moisture on the evaporator 1 and transfer the moisture to the water receiving grooves 43 at both ends through the transversely arranged guide grooves 42.

[0052] The electric heating structure provided in this embodiment improves the heating body so that heat is evenly transferred to the airflow around the evaporator 1, thereby avoiding the temperature difference of the airflow around the end of the evaporator 1 and improving the heat exchange efficiency of the indoor unit. The heating body 2 is a hollow structure and will not block the wind, thereby avoiding noise problems.

[0053] Example 2

[0054] This embodiment provides an air conditioner, which includes the electric heating structure described in Embodiment 1.

[0055] In a specific embodiment, when the electric heating structure includes a condensation water collection unit 4, and the condensation water collection unit 4 includes a water receiving tank 43, the air conditioner also includes a humidity adjustment unit 5, and the humidity adjustment unit 5 includes a controller 51, a humidity detection component 52 and a pump body 53. The humidity detection component 52 is arranged indoors, the pump body 53 is arranged at the bottom of the water receiving tank 43, and the controller 51 is arranged in the air conditioner; the humidity detection component 52 can transmit the detected indoor humidity to the controller 51, and the controller 51 controls the pump body 53 according to the indoor humidity, so that it does not work or works, and then transports the water in the water receiving tank 43 to the heating body 2.

[0056] More specifically, the humidity detection element 52 in this embodiment is a humidity sensor, which is arranged indoors. The working principle of the humidity sensor is to utilize the sensitivity of a humidity-sensitive element (such as a resistor or capacitor) to the ambient humidity, convert the humidity change into the change of an electrical signal, thereby realizing the measurement of humidity.

[0057] Since the air conditioner keeps running and delivering air in the cooling mode, the indoor temperature is relatively dry. Therefore, a humidity sensor is set on the outer surface of the air conditioner. When the humidity is lower than the threshold value, under the action of the controller 51, the water in the water tank 43 is transferred to the heating body 2 through the pump body 53, and then heated to become water vapor, and finally blown into the room through the air guide plate to replenish the indoor humidity and achieve the effect of constant humidity cooling. In addition, there are many ways for the pump body 53 to transfer water to the heating body 2, for example, through a water pipe, and the end of the water pipe has a spray head, and the spray head faces the heating body 2.

[0058] In a specific embodiment, the condensate collection unit 4 further includes a water level sensor 44 and a drain valve 45 connected to the controller 51 . The water level sensor 44 is disposed in the water receiving tank 43 , and the drain valve 45 is disposed at the bottom of the water receiving tank 43 .

[0059] In this embodiment, if the indoor humidity detected by the humidity sensor meets the conditions, but the water level in the water receiving tank 43 detected by the water level sensor 44 is higher than the set threshold, the water in the water receiving tank 43 flows to the outside through the drain valve 45 and the drain pipe under the action of the controller 51.

[0060] The electric heating structure of the traditional air conditioner indoor evaporator is located on the inner side of the evaporator near the glue port, so the airflow on the inner side of the evaporator is heated more than the left and right ends. Compared with the traditional electric heating structure, the electric heating structure of this embodiment can completely cover the inner side of the evaporator, so that the airflow around the evaporator can be heated evenly, improving the heat exchange efficiency of the evaporator and the effect of regulating the temperature. In addition, the setting of the through hole can effectively solve the noise problem caused by eddy current.

[0061] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0062] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electric heating structure, applied to an evaporator, characterized in that: The evaporator has an open space formed by multiple bends. The electric heating structure includes a heating body and a heat dissipation unit. The heating body matches the shape of the evaporator and is located in the open space. The heat dissipation unit is opened on the heating body so that the heat generated by the heating body can be evenly transferred to the evaporator.

2. The electric heating structure according to claim 1, characterized in that: The heat dissipation unit includes a through hole opened on the heating body.

3. The electric heating structure according to claim 2, characterized in that: The through holes are square and there are a plurality of them, and the plurality of through holes are distributed in rows and columns on the heating body.

4. The electric heating structure according to claim 1, characterized in that: A copper tube is passed through the bending part of the heating body.

5. The electric heating structure according to any one of claims 1 to 4, characterized in that: The electric heating structure also includes a condensed water collecting unit, one end of which is located on the evaporator for collecting condensed water generated by the evaporator, and the other end of which is located at the end of the heating body for draining the condensed water out of the heating body.

6. The electric heating structure according to claim 5, characterized in that: The condensed water collection unit includes a water absorption strip, a guide groove and a water receiving groove. The water absorption strip and the guide groove are both arranged on the side of the heating body facing the evaporator, and the water absorption strip is connected to the guide groove. The water receiving groove is located at the bottom of both sides of the heating body.

7. The electric heating structure according to claim 6, characterized in that: The water absorption strips are made of silica gel, and there are a plurality of them, and the plurality of water absorption strips are distributed on the heating body along the vertical direction; and / or a plurality of guide grooves are provided, and the plurality of guide grooves are distributed on the heating body along the horizontal direction.

8. An air conditioner, characterized in that: The air conditioner comprises the electric heating structure according to any one of claims 1-7.

9. The air conditioner according to claim 8, characterized in that: When the electric heating structure includes a condensation water collection unit, and the condensation water collection unit includes a water receiving tank, the air conditioner also includes a humidity adjustment unit, and the humidity adjustment unit includes a controller, a humidity detection component and a pump body. The humidity detection component is arranged indoors, the pump body is arranged at the bottom of the water receiving tank, and the controller is arranged in the air conditioner; the humidity detection component can transmit the detected indoor humidity to the controller, and the controller controls the pump body according to the indoor humidity to make it not work or make it work and then transport the water in the water receiving tank to the heating body.

10. The air conditioner according to claim 9, characterized in that: The condensed water collection unit further comprises a water level sensor and a drain valve connected to the controller, the water level sensor is arranged in the water receiving tank, and the drain valve is arranged at the bottom of the water receiving tank.

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