An electric heating device and an air conditioner

Abstract

The application provides an electric heating device and an air conditioner, the electric heating device is arranged in an indoor unit of the air conditioner, the electric heating device comprises: a heating element connected with the indoor unit, a plurality of heat dissipation elements arranged side by side are arranged on at least one side of the heating element; a flow guide element is arranged on the side of the heating element close to the heat dissipation elements; wherein the flow guide element guides the condensed water on the heating element to the heat dissipation elements. The application solves the problem that the condensed water on the electric heater will drip into the air duct and finally be blown out from the air outlet when it accumulates to a certain extent, thereby affecting the user experience.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an electric heating device and an air conditioner. Background Technology

[0002] Currently, in order to improve the heating effect of air conditioners in low-temperature environments, auxiliary electric heaters are often installed in the indoor units of air conditioners.

[0003] However, when the indoor unit of an air conditioner is in cooling mode, condensation will be generated on the surface of the auxiliary electric heater. Since the structure of common auxiliary electric heaters does not have a water removal structure, the condensation on the electric heater will drip into the air duct after accumulating to a certain extent, and eventually be blown out from the air outlet, thus affecting the user experience. Summary of the Invention

[0004] This invention addresses the problem that condensate on the electric heater accumulates to a certain level, drips into the air duct, and is eventually blown out of the air outlet, thus affecting the user experience.

[0005] To address the aforementioned problems, the present invention provides an electric heating device disposed within the indoor unit of an air conditioner; the electric heating device includes: a heating element connected to the indoor unit, wherein at least one side of the heating element is provided with a plurality of heat dissipation elements arranged side by side; and a drainage element disposed on the side of the heating element near the heat dissipation elements; wherein the drainage element drains condensate from the heating element to the heat dissipation elements.

[0006] Compared with existing technologies, the technical effects achieved by this solution are as follows: By incorporating a drainage component, condensate collected at the top of the heat-generating component is diverted to the heat-dissipating component. This increases the surface area of ​​the condensate, improving its evaporation efficiency and reducing the amount of condensate blown out of the air outlet, thus minimizing the impact on users. Furthermore, due to the adhesive nature of water, diverting condensate from the heat-generating component to multiple side-by-side heat-dissipating components increases the surface area of ​​the condensate, extending its residence time on the heat-dissipating components and thus increasing the evaporation time. This reduces the likelihood of condensate being discharged from the air outlet as a stream.

[0007] In one embodiment of the present invention, a heat dissipation branch is included, disposed within a first gap formed by two adjacent heat dissipation elements, and the heat dissipation branch extends in a direction away from the heat dissipation element.

[0008] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting heat dissipation branches on the heat sink, the surface area for condensate to evaporate on the electric heating device is further increased. Specifically, condensate collected on the top surface of the heating element can flow sequentially over the surface of the heating element, the surface of the heat sink, and the surface of the heat dissipation branches. This increases the surface area over which condensate flows compared to condensate only flowing over the surface of the heating element, further reducing the amount of condensate per unit surface area of ​​the electric heating device, greatly improving the evaporation efficiency of condensate, and reducing the amount of water blown out from the air outlet, especially reducing the accidental occurrence of condensate splashing out of the air outlet in the form of a jet of water. In addition, it is unavoidable that water droplets will condense on the tube wall of the heat exchanger or the indoor unit casing connected to it during the cooling operation of the air conditioner and drip towards the fan. However, because heat dissipation branches are set in the first gap, the heat dissipation branches can block the dripping water droplets, preventing them from dripping directly into the fan, further improving user comfort.

[0009] In one embodiment of the present invention, the heat dissipation branch includes: a plurality of heat sinks arranged side by side on the corresponding heat dissipation component, and the heat dissipation component and the side of the heat sinks near the heat-generating component form an angle greater than or less than 90°.

[0010] Compared with existing technologies, the technical effects achieved by this solution are as follows: Considering the actual operation of the air conditioner's heating function, to ensure the overall heat exchange efficiency and effect of the air conditioner, the electric heating device is often rotated at a certain angle around its longitudinal axis. The bottom surface of the electric heating device near the fan is defined as the windward side, thus forming a windward angle between the windward side and the horizontal plane. By adjusting a suitable windward angle, the electric heating device can have a sufficiently large windward area, and the airflow from the fan can transition smoothly when passing near the electric heating device, avoiding excessive noise. Furthermore, due to the tilted design of the electric heating device, the condensate on it slides along the side wall of the heating element to the heat dissipation element under its own gravity. Since the heat dissipation element and the heat sink form an angle greater than or less than 90° with the side closest to the heating element, some of the condensate flowing through the heat dissipation element also enters multiple heat sinks under its own gravity, ensuring sufficient contact between the condensate and the heat sink and heat dissipation element, thereby improving the evaporation efficiency of the condensate.

[0011] In one embodiment of the present invention, the heating element is a long strip of heating strip; the heat dissipation element is an arc-shaped fin, which is bent along the length of the long strip of heating strip; and the arc-shaped fin has opposing concave and convex surfaces; wherein the heat dissipation branch is located on the concave surface and / or the convex surface.

[0012] Compared to existing technologies, the technical effects achieved by this solution are as follows: In a specific example, the indoor unit is, for instance, a wall-mounted air conditioner. Due to installation deviations, the indoor unit may be tilted vertically, meaning one end is higher than the other along the wall. Therefore, the curved fins can effectively guide condensate to the connected heat dissipation branches. Furthermore, by arranging the heat dissipation components in a curved shape, the surface area for condensate diffusion is increased within the limited installation space of the indoor unit, further improving the evaporation efficiency of the condensate.

[0013] In one embodiment of the present invention, the top surface of the heat dissipation branch and the heat dissipation component connected thereto are flush, or the top surface of the heat dissipation branch is lower than the top surface of the heat dissipation component connected thereto.

[0014] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: further improving the diffusion efficiency of condensate, making the process of condensate transitioning from the heat sink to the heat dissipation branch smoother, thereby further improving the evaporation efficiency of condensate, and effectively preventing condensate from flowing too slowly and accumulating into water flow.

[0015] In one embodiment of the present invention, the indoor unit includes a heat exchanger and a fan, and the electric heating device is located between the heat exchanger and the fan; the heating element has a receiving groove on its end face near the heat exchanger; the electric heating device includes: at least one partition member disposed in the receiving groove, the at least one partition member being used to divide the receiving groove into a plurality of first water storage tanks; wherein at least a portion of the structure of the diversion member is simultaneously connected to the corresponding first water storage tank and the partition member.

[0016] Compared with existing technologies, the technical effects achieved by this solution are as follows: In a specific example, the indoor unit is, for instance, a wall-mounted air conditioner. Due to installation deviations, the indoor unit may be tilted vertically, meaning one end is higher than the other along the wall. The receiving tray is, for example, positioned along the length of the heating element, and its length can be considered similar to that of the heating element. Therefore, during actual operation, the condensate stored in the receiving tray is prone to overflowing from the higher end first. This condensate then flows into the fan along the side wall of the heating element, and the fan sprays the water out through the air outlet, severely impacting the user experience and resulting in very low condensate evaporation efficiency. Therefore, in accordance with the content of this technical solution, the receiving tank is divided into multiple first water storage tanks by a separator, so that as many first water storage tanks as possible can play the role of storing water. As a result, the condensate overflowing from the corresponding first water storage tank is guided by the flow guide to the heat dissipation components and heat dissipation branches located at different positions of the heat-generating component. This avoids the situation where the condensate flows out from the same part of the heat-generating component and gathers into a water flow, thereby greatly improving the effect of the heat dissipation components and heat dissipation branches on the evaporation of condensate.

[0017] In one embodiment of the present invention, the drainage element is a protruding structure with a drainage slope; wherein the drainage slope is used to drain the condensate on the heating element to the heat dissipation element.

[0018] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: the drainage component has a simple structure and can play a good drainage role.

[0019] In one embodiment of the present invention, the top end of the heat sink is lower than the top end of the heat-generating element, forming a height difference between them; the drainage element includes: a first drainage groove extending along the length direction of the heat-generating element, and the first drainage groove is disposed at the position where the heat-generating element and the heat sink are connected; and / or, the top end of the heat sink is flush with the top end of the heat-generating element.

[0020] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: In a specific example, the first drainage channel can be set up in multiple segments connected end to end along the length of the heating element, so that the condensate can come into contact with the surface of the heating element as much as possible through the first drainage channel under the action of gravity, thereby increasing the surface area for condensate evaporation and improving evaporation efficiency.

[0021] In one embodiment of the present invention, when the top end of the heat sink is lower than the top end of the heat-generating element, the drainage element further includes: a second drainage groove, one end of which is connected to the receiving groove and the other end of which is connected to the first drainage groove.

[0022] Compared with existing technologies, the technical effects achieved by this solution are as follows: Specifically, the condensate stored in the receiving tank is guided into the first drainage channel by the second drainage channel. Since the first drainage channel is located at the connection between the heating element and the heat dissipation element, the condensate entering the first drainage channel flows over the heat dissipation element and the heat dissipation fins. This increases the flow path of the condensate, allowing it to evaporate as much as possible.

[0023] On the other hand, the present invention also provides an air conditioner, including an electric heating device as described in any of the above examples; an indoor unit having a mounting position for installing the electric heating device.

[0024] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above technical solutions, which will not be elaborated here.

[0025] By adopting the technical solution of the present invention, the following technical effects can be achieved:

[0026] (1) By setting up a diversion device, the condensate collected at the top of the heat-generating component is diverted to the heat dissipation component. In other words, by increasing the surface area of ​​the condensate, its evaporation efficiency is improved, reducing the amount of condensate blown out of the air outlet and reducing the impact on users. In addition, since water has adhesion, by diverting the condensate from the heat-generating component to multiple heat dissipation components arranged side by side, the surface area of ​​the condensate is increased, which to some extent prolongs the residence time of the condensate on the heat dissipation component, thereby increasing the evaporation time and reducing the amount of condensate discharged from the air outlet in the form of a water flow.

[0027] (2) By setting heat dissipation branches on the heat sink, the surface area for condensate to evaporate on the electric heating device is further increased. Specifically, the condensate collected on the top surface of the heating element can flow sequentially through the surface of the heating element, the surface of the heat sink, and the surface of the heat dissipation branches. This increases the surface area through which the condensate flows compared to the condensate only flowing through the surface of the heating element, further reducing the amount of condensate per unit surface area of ​​the electric heating device, greatly improving the evaporation efficiency of the condensate, reducing the amount of water blown out from the air outlet, and especially reducing the accidental occurrence of condensate splashing out of the air outlet in the form of a water jet. In addition, it is unavoidable that water droplets will condense on the tube wall of the heat exchanger or the indoor unit casing connected to it due to the cooling operation of the air conditioner and drip towards the fan. However, since heat dissipation branches are set in the first gap, the heat dissipation branches can block the dripping water droplets, preventing the water droplets from dripping directly into the fan, further improving user comfort. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the structure of an electric heating device provided in Embodiment 1 of the present invention.

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0030] Figure 3 for Figure 2 Enlarged view of point B in the middle.

[0031] Figure 4 for Figure 1 The sectional view in the image.

[0032] Figure 5 for Figure 1 A schematic view of a partial structure.

[0033] Figure 6 for Figure 5 A magnified view of point C in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100-Electric heating device; 101-Base; 10-Heating element; 11-Receiving tank; 12-First water storage tank; 13-Side part; 20-Heat dissipation element; 21-First spacing; 30-Heat dissipation branch; 31-Heat dissipation fin; 40-Drainage element; 41-Drainage slope; 50-Separator. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Example 1:

[0038] See Figure 1 This is a structural schematic diagram of an electric heating device 100 provided in Embodiment 1 of the present invention. Combined with... Figures 2-6 The electric heating device 100 is located inside the indoor unit of the air conditioner; the electric heating device 100 includes, for example, a heating element 10 and a heat sink 40. Specifically, the heating element 10 is connected to the indoor unit, and at least one side of the heating element 10 is provided with a plurality of heat sinks 20 arranged side by side; the heat sink 40 is located on the side of the heating element 10 near the heat sinks 20; wherein, the heat sink 40 drains the condensate on the heating element 10 to the heat sinks 20.

[0039] In a typical example, the indoor unit typically contains a heat exchanger and a fan, while the electric heating device 100 is located between the heat exchanger and the fan. When the air conditioner is in heating mode, the refrigerant condenses and releases heat. Through the operation of the fan, the high-temperature air processed by the heat exchanger is discharged into the room through the air outlet. In order to improve user comfort and avoid insufficient temperature of the air blown out of the air outlet, the electric heating device 100 is turned on to supplement the heating of the surrounding air, thereby ensuring that warm air with a higher temperature is blown out of the air outlet.

[0040] However, when the air conditioner is in cooling mode, the electric heating device 100 is turned off. Simultaneously, due to the high indoor temperature, and the heat exchanger being in an evaporative cooling state, condensation easily forms on the surface of the electric heating device 100 in this alternating hot and cold environment. Commonly, the surface area of ​​the electric heating device 100 is small, resulting in low condensation evaporation efficiency. When the condensation accumulates to a certain level, it slides off its surface and is then blown out of the air outlet by the fan, thus reducing the user experience.

[0041] Specifically, the closer the electric heating device 100 is to the end of the heat exchanger, the easier it is for condensation to form on its surface. For ease of description, the end of the heating element 10 closest to the heat exchanger is called the top end, the end of the heating element 10 closest to the fan is called the bottom end, and the portion of the heating element 10 sandwiched between the top and bottom ends is called the side portion 13. Thus, based on the above specific example, it can be understood that the top end is more prone to condensation than other parts of the heating element 10. Since multiple heat dissipation elements 20 are arranged side by side on the side portion 13, there is a gap between two adjacent heat dissipation elements 20, and condensation tends to accumulate from the top end and then escape from the heating element 10 along the surface of the side portion 13 through the aforementioned gap.

[0042] In accordance with the content of this technical solution, by setting up a guide component 40, the condensate collected at the top of the heat-generating component 10 is diverted to the heat-dissipating component 20. This increases the surface area of ​​the condensate, improving its evaporation efficiency and reducing the amount of condensate blown out of the air outlet, thus minimizing the impact on the user. Furthermore, due to the adhesive nature of water, diverting the condensate from the heat-generating component 10 to the multiple side-by-side heat-dissipating components 20 increases the surface area of ​​the condensate, extending its residence time on the heat-dissipating components 20 and thus increasing the evaporation time. This reduces the likelihood of the condensate being discharged from the air outlet as a stream.

[0043] Preferably, the electric heating device 100 includes, for example, a heat dissipation branch 30, which is disposed within a first gap 21 formed by two adjacent heat dissipation elements 20, and the heat dissipation branch 30 extends in a direction away from the heat dissipation element 10.

[0044] In a specific example, by providing heat dissipation branches 30 on the heat sink 20, the surface area for condensate to evaporate on the electric heating device 100 is further increased. Specifically, the condensate collected on the top surface of the heating element 10 can flow sequentially over the surface of the heating element 10, the surface of the heat sink 20, and the surface of the heat dissipation branches 30. This increases the surface area over which the condensate flows compared to the condensate only flowing over the surface of the heating element 10, further reducing the amount of condensate per unit surface area of ​​the electric heating device 100, greatly improving the evaporation efficiency of the condensate, reducing the amount of water blown out from the air outlet, and especially reducing the accidental occurrence of condensate splashing out of the air outlet in the form of a jet of water. In addition, it is unavoidable that water droplets will condense on the tube wall of the heat exchanger or the indoor unit casing connected to it due to the cooling operation of the air conditioner and drip towards the fan. However, since the heat dissipation branches 30 are provided in the first spacing 21, the heat dissipation branches 30 can block the dripping water droplets, preventing the water droplets from dripping directly into the fan, further improving user comfort. For example, both the heat sink 20 and the heat dissipation branch 30 are finned structures.

[0045] Preferably, the heat dissipation branch 30 includes, for example, a plurality of heat sinks 31, which are arranged side by side on the corresponding heat dissipation component 20, and the heat dissipation component 20 and the side of the heat sink 31 closest to the heat-generating component 10 form an angle greater than or less than 90°. This angle can be α.

[0046] In a specific example, considering the actual operation of the air conditioner's heating function, to ensure the overall heat exchange efficiency and effect of the air conditioner, the electric heating device 100 is often rotated at a certain angle around its longitudinal axis. The bottom surface of the electric heating device 100 near the fan is defined as the windward surface, thus forming a windward angle between the windward surface and the horizontal plane. By adjusting a suitable windward angle, the electric heating device 100 can have a sufficiently large windward area, and the airflow delivered by the fan can transition relatively smoothly when passing near the electric heating device 100, avoiding the generation of excessive noise.

[0047] Therefore, in conjunction with the above specific examples, due to the inclined arrangement of the electric heating device 100, the condensate on the electric heating device 100 can slide along the side wall of the heating element 10 to the heat dissipation element 20 under its own gravity. Since the heat dissipation element 20 and the heat sink 31 form an angle greater than or less than 90° on the side closer to the heating element 10, some of the condensate flowing through the heat dissipation element 20 enters the multiple heat sinks 31 under its own gravity, thereby ensuring sufficient contact between the condensate and the heat sinks 31 and the heat dissipation element 20, thereby improving the evaporation efficiency of the condensate.

[0048] More specifically, heat dissipation components 20 are provided on opposite sides along the length of the heating element 10, and corresponding heat dissipation branches 30 are also provided on these two sides of the heating element 10. Since the electric heating device 100 is inclined, the heating element 10 has one side higher and the other side lower in the vertical direction on each side of the heat dissipation component 20. This allows the condensate to move towards the lower heat dissipation component 20 and heat dissipation branch 30 under its own gravity, preventing the condensate from staying on the top surface of the heating element 10 for a long time and accumulating into a water flow.

[0049] Of course, different air conditioner models result in different airflow angles. For example, the airflow angle can be 0°. In this case, the electric heating device 100 is horizontally mounted on the indoor unit. When condensate overflows from the top surface of the heating element 10, it can be diverted from the draining parts 40 on both sides to the corresponding heat dissipation parts 20 and heat dissipation branches 30. This allows the heat dissipation parts 20 and heat dissipation branches 30 on both sides of the heating element 10 to evaporate the condensate, thereby improving evaporation efficiency.

[0050] Furthermore, based on the above example, in another specific instance, to further improve the diffusion efficiency of condensate on the heat sink 20 and the heat dissipation branch 30, a guiding angle can be formed between the end face of the heat sink 20 near the heat exchanger and the top face of the heating element 10. Specifically, this end face of the heat sink 20 can be defined as a guiding slope, and the guide slope is inclined from the end connected to the heating element 10 toward the fan, so that when the electric heating device 100 is horizontally installed on the indoor unit, the guiding slope forms an angle with the horizontal plane, thereby enabling the condensate on the guiding slope to diffuse rapidly under its own gravity. The top of the heat dissipation branch 30 can, for example, be flush with the guiding slope, further accelerating the diffusion of condensate from the guiding slope to the surface of the heat sink 31, improving the evaporation efficiency of the condensate, and preventing the condensate from moving slowly and accumulating into a stream.

[0051] Preferably, the heating element 10 is a long strip heating bar; the heat dissipation element 20 is an arc-shaped fin, which is bent along the length of the long strip heating bar; and the arc-shaped fin has a concave surface and a convex surface; wherein the heat dissipation branch 30 is located on the concave surface and / or the convex surface.

[0052] In a specific example, the indoor unit may be a wall-mounted air conditioner. Due to installation deviations, such as vertical tilt, the indoor unit may be positioned with one end higher than the other along the wall. Therefore, the curved fins can effectively guide the condensate to the connected heat dissipation branch 30. Furthermore, by arranging the heat dissipation component 20 in a curved shape, the surface area for condensate diffusion is increased within the limited installation space of the indoor unit, further improving the condensate evaporation efficiency.

[0053] Preferably, the top surfaces of the heat dissipation branch 30 and the heat dissipation component 20 connected thereto are flush, or the top surface of the heat dissipation branch 30 is lower than the top surface of the heat dissipation component 20 connected thereto. This further improves the diffusion efficiency of condensate, making the transition of condensate from the heat dissipation component 20 to the heat dissipation branch 30 smoother, thereby further improving the evaporation efficiency of condensate and effectively preventing condensate from flowing too slowly and accumulating into a water flow.

[0054] Preferably, the indoor unit includes, for example, a heat exchanger and a fan, with the electric heating device 100 located between the heat exchanger and the fan; the heating element 10 has a receiving groove 11 on its end face near the heat exchanger; the electric heating device 100 includes, for example, at least one partition 50, which is disposed on the receiving groove 11 and is used to divide the receiving groove 11 into a plurality of first water storage tanks 12; wherein at least a portion of the structure of the diverting member 40 is simultaneously connected to the corresponding first water storage tank 12 and the partition 50.

[0055] Based on the above specific examples, in another specific example, since the receiving groove 11 is arranged along the length of the heating element 10, and the length of the receiving groove 11 can be regarded as being similar to the length of the heating element 10, during the actual operation of the indoor unit, when the condensate stored in the receiving groove 11 is about to overflow, it will easily overflow from the receiving groove 11 at the higher end first. As a result, the condensate flows into the fan along the side wall of the heating element 10 in the form of a water flow, and the fan splashes the water out through the air outlet, which seriously affects the user experience and makes the evaporation efficiency of the condensate very low.

[0056] Therefore, in accordance with the content of this technical solution, the receiving tank 11 is divided into multiple first water storage tanks 12 by the separator 50, so that as many first water storage tanks 12 as possible can play the role of storing water. As a result, the condensate overflowing from the corresponding first water storage tank 12 is guided by the diverter 40 to the heat dissipation component 20 and heat dissipation branch 30 located at different positions of the heat-generating component 10, thereby avoiding the situation where the condensate flows out from the same part of the heat-generating component 10 and gathers into a water flow. This greatly improves the effect of the heat dissipation component 20 and heat dissipation branch 30 on the evaporation of condensate.

[0057] Preferably, the drainage element 40 is a protruding structure with a drainage slope 41; wherein, the drainage slope 41 is used to drain the condensate on the heating element 10 to the heat dissipation element 20. The drainage element 40 has a simple structure and can play a good drainage role.

[0058] Preferably, the top of the heat sink 20 is lower than the top of the heat-generating element 10, forming a height difference between them; the drainage element 40 includes, for example, a first drainage groove, which extends along the length of the heat-generating element 10 and is located at the connection between the heat-generating element 10 and the heat sink 20; and / or, the top of the heat sink 20 is flush with the top of the heat-generating element 10.

[0059] In a specific example, the first drainage channel can be arranged in multiple segments connected end to end along the length of the heating element 10. For example, the first drainage channel includes a third drainage channel and multiple fourth drainage channels. The third drainage channel extends along the length of the heating element 10 and is connected to multiple heat dissipation elements 20 located on the same side of the heating element 10. Furthermore, the end of the heat dissipation element 20 near the heat exchanger extends into the third drainage channel. Conversely, multiple fourth drainage channels are located on the side of the third drainage channel near the heat exchanger. The multiple fourth drainage channels are arranged parallel to each other and connected end to end. Specifically, each fourth drainage channel has a water inlet end and a water outlet end arranged opposite to each other, and the water inlet end is closer to the receiving tank 11 than the water outlet end. In this system, the inlet end of the fourth drainage channel closest to the receiving tank 11 is connected to the receiving tank 11 to guide condensate out of the receiving tank 11. The outlet end of the fourth drainage channel closest to the third drainage channel is connected to the third drainage channel. The outlet end of any of the remaining fourth drainage channels is connected to the inlet end of the adjacent fourth drainage channel. This allows condensate to flow sequentially through the receiving tank 11, the first drainage channel, the heat sink 20, and the heat dissipation branch 30. For example, to facilitate condensate flow, the fourth drainage channels and the third drainage channel are arc-shaped channels.

[0060] Furthermore, considering the actual installation of the electric heating device 100 in the indoor unit, the condensate, under the action of gravity, can contact the surface of the heating element 10 as much as possible through the specific structure of the first drainage channel. This ensures that the condensate can fully contact the surface area of ​​the heating element 10 located between the receiving tank 11 and the heat dissipation element 20, thereby increasing the surface area for condensate evaporation and improving evaporation efficiency.

[0061] Preferably, when the top of the heat sink 20 is lower than the top of the heat-generating element 10, the drainage element 40 further includes, for example, a second drainage channel. The second drainage channel has a first end and a second end that are oppositely disposed. Specifically, the first end is connected to the receiving tank 11, and the second end is connected to the first drainage channel. Specifically, the condensate stored in the receiving tank 11 is guided into the first drainage channel by the drainage effect of the second drainage channel. Since the first drainage channel is located at the connection between the heat-generating element 10 and the heat sink 20, the condensate entering the first drainage channel flows over the heat sink 20 and the heat dissipation branch 30. This increases the flow path of the condensate, allowing it to evaporate as much as possible.

[0062] Example 2:

[0063] Embodiment 2 of the present invention provides an air conditioner. Further, the air conditioner includes, for example, the electric heating device 100 and an indoor unit as described in Embodiment 1 above, with the indoor unit having a mounting position for installing the electric heating device 100. Specifically, this embodiment can achieve the technical effects corresponding to any of the technical solutions in Embodiment 1 above, which will not be elaborated further here.

[0064] In a specific example, the electric heating device 100 may also include a base 101 connected to both ends of the heating element 10. Correspondingly, the indoor unit is provided with a tube plate for connecting with the base 101. In order to enable the electric heating device 100 to be stably installed on the indoor unit, the tube plate and the base 101 are usually connected by screws.

[0065] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An electric heating device, wherein the electric heating device is disposed inside the indoor unit of an air conditioner; characterized in that, The electric heating device includes: A heating element (10) is connected to the indoor unit, and a plurality of heat dissipation elements (20) are arranged side by side on at least one side of the heating element (10). A draining element (40) is disposed on the side of the heating element (10) near the heat dissipation element (20); The drainage component (40) drains the condensate on the heating component (10) to the heat dissipation component (20). The indoor unit includes a heat exchanger and a fan, and the electric heating device is located between the heat exchanger and the fan; The heating element (10) has a receiving groove (11) on its end face near the heat exchanger. The electric heating device includes: At least one partition (50) is provided in the receiving tank (11), the at least one partition (50) being used to divide the receiving tank (11) into a plurality of first water storage tanks (12). At least a portion of the structure of the diversion element (40) is simultaneously connected to the corresponding first water storage tank (12) and the separator (50).

2. The electric heating device according to claim 1, characterized in that, include: A heat dissipation branch (30) is provided within a first gap (21) formed by two adjacent heat dissipation elements (20), and the heat dissipation branch (30) extends in a direction away from the heat-generating element (10).

3. The electric heating device according to claim 2, characterized in that, The heat dissipation branch (30) includes: Multiple heat sinks (31) are arranged side by side on the corresponding heat sink (20), and the heat sink (20) and the side of the heat sink (31) near the heat source (10) form an angle greater than or less than 90°.

4. The electric heating device according to claim 2, characterized in that, The heating element (10) is a long strip-shaped heating bar; The heat sink (20) is an arc-shaped fin, which is bent along the length of the elongated heating strip; and the arc-shaped fin has a concave surface and a convex surface. The heat dissipation branch (30) is located on the concave surface and / or the convex surface.

5. The electric heating device according to claim 2, characterized in that, The top surfaces of the heat dissipation branch (30) and the heat dissipation component (20) connected thereto are flush, or the top surface of the heat dissipation branch (30) is lower than the top surface of the heat dissipation component (20) connected thereto.

6. The electric heating device according to claim 1, characterized in that, The drainage component (40) is a protruding structure with a drainage slope (41); The drainage slope (41) is used to drain the condensate on the heating element (10) to the heat dissipation element (20).

7. The electric heating device according to claim 1, characterized in that, The top of the heat sink (20) is lower than the top of the heat-generating element (10), forming a height difference between them; the drainage element (40) includes: a first drainage groove, which extends along the length direction of the heat-generating element (10), and the first drainage groove is located at the position where the heat-generating element (10) and the heat sink (20) are connected; And / or, the heat sink (20) is flush with the top of the heat-generating element (10).

8. The electric heating device according to claim 7, characterized in that, When the top of the heat sink (20) is lower than the top of the heat-generating element (10), the drainage element (40) further includes: The second drainage channel has one end connected to the receiving channel (11) and the other end connected to the first drainage channel.

9. An air conditioner, characterized in that, include: The electric heating device as described in any one of claims 1-8; The indoor unit has a mounting position for installing the electric heating device.

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