CN220506998U - Heating device for air conditioner and air conditioner indoor unit - Google Patents

Abstract

The application relates to the technical field of household appliances, and discloses a heating device for an air conditioner. The box body comprises a first mounting cavity provided with an opening. The mounting door is arranged at the opening of the first mounting cavity, and is provided with a drain hole penetrating through the mounting door and a diversion trench communicated with the drain hole. The heating element is arranged in the first mounting cavity of the box body. The installation door is arranged below the heating element, and the diversion trench is arranged at a position corresponding to the installation door and the heating element, so that condensed water generated by the heating element can drop into the diversion trench. By the arrangement, condensed water generated by the heating element can be prevented from dripping to other places in the indoor unit of the air conditioner and is blown out from the air outlet by the fan, and the use experience of a user is improved. Meanwhile, the application also discloses an air conditioner indoor unit.

Description

Heating device for air conditioner and air conditioner indoor unit

Technical Field

The application relates to the technical field of household appliances, for example, to a heating device for an air conditioner and an air conditioner indoor unit.

Background

At present, the air conditioner is widely applied to daily life of people, and when the air conditioner is started to heat a mode, a refrigerant is changed into high-pressure gas through a compressor, and then is condensed and released through an indoor heat exchanger to become a high-pressure liquid refrigerant. The high-pressure liquid refrigerant is changed into a low-temperature low-pressure liquid refrigerant through a throttling device, and then evaporated and absorbed by an outdoor heat exchanger, and finally flows back to the compressor; when the air conditioner is in a refrigerating mode, a flow path of the refrigerant is changed through the four-way reversing valve, the refrigerant absorbs heat through evaporation of the indoor heat exchanger, and the refrigerant releases heat through condensation of the outdoor heat exchanger. Under the condition that the air conditioner is in a heating mode or a refrigerating mode, a fan arranged on the indoor unit can blow hot air or cold air around the indoor heat exchanger into the room through the air outlet, so that the temperature of the room is raised or lowered.

The existing air-conditioning indoor unit is generally further provided with a heating device, and the heating device can be used for auxiliary heating under the condition that the air-conditioning indoor unit operates in a heating mode.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

under the condition that the existing indoor unit of the air conditioner is refrigerating, the heating device is close to the heat exchanger, so that condensed water can be generated on the heating device, and the condensed water can be blown out from the air outlet by the fan, and the use experience of a user is affected.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a heating device for an air conditioner and an air conditioner indoor unit, which can prevent condensed water generated by the heating device from being blown out of the air conditioner indoor unit, and improve the use experience of a user.

The embodiment of the disclosure provides a heating device for an air conditioner, which comprises a box body, a mounting door and a heating element. The box body comprises a first mounting cavity provided with an opening. The mounting door is arranged at the opening of the first mounting cavity, and is provided with a drain hole penetrating through the mounting door and a diversion trench communicated with the drain hole. The heating element is arranged in the first mounting cavity of the box body. The installation door is arranged below the heating element, and the diversion trench is arranged at a position corresponding to the installation door and the heating element, so that condensed water generated by the heating element can drop into the diversion trench.

In some embodiments, the flow-directing channels include a first directional flow-directing channel and a second directional flow-directing channel. The first guiding gutter is arranged on the inner side wall surface of the mounting door along the direction consistent with the longitudinal direction of the heating element. The second directional diversion trench is arranged on the inner side wall surface of the mounting door in a mode of intersecting with the first directional diversion trench. Wherein the first direction guiding gutter and the second direction guiding gutter are mutually communicated, and the first direction guiding gutter and/or the second direction guiding gutter are communicated with the drain hole.

In some embodiments, the length of the first directional guide slot is greater than or equal to the longitudinal length of the heating element. The length of the second dichroic channel is greater than or equal to the width of the heating element.

In some embodiments, the mounting door is provided with a plurality of first directional guide channels and a plurality of second directional guide channels on an inner sidewall surface.

In some embodiments, the heating element comprises one or more heating fins. The shape of the heating plate is defined as a wave shape.

In some embodiments, where the heating element comprises a plurality of heating tabs, the plurality of heating tabs are stacked in a direction along the width of the cartridge body. The first guiding grooves are respectively and correspondingly arranged with the heating plates, so that the projections of the heating plates on the horizontal plane fall into the first guiding grooves respectively.

In some embodiments, the mounting door is uniformly provided with a plurality of heat dissipation holes, and the heat dissipation holes and the diversion trenches are arranged in a staggered manner.

The embodiment of the disclosure also provides an air conditioner indoor unit, which comprises a framework provided with a second installation cavity, an indoor heat exchanger installed in the second installation cavity, and the heating device for the air conditioner. Wherein, a heating device for an air conditioner is installed in the second installation cavity of the framework.

In some embodiments, the air conditioning indoor unit further comprises a water pan and a drain pipe. The water pan is arranged at a position corresponding to the indoor heat exchanger in the second installation cavity of the framework. The drain pipe is used for communicating the water receiving disc and the drain hole.

In some embodiments, a first clamping portion is arranged at the drain hole; one end of the drain pipe can be clamped in the drain hole through the first clamping part. The position corresponding to the water receiving disc in the framework is provided with a second clamping part, and the other end of the drain pipe can be clamped in the framework through the second clamping part.

The heating device for an air conditioner and the air conditioner indoor unit provided by the embodiment of the disclosure can realize the following technical effects:

the embodiment of the disclosure provides a heating device for an air conditioner, which comprises a box body, a mounting door and a heating element. The box body comprises a first mounting cavity provided with an opening. The mounting door is arranged at the opening of the first mounting cavity, and is provided with a drain hole penetrating through the mounting door and a diversion trench communicated with the drain hole. The heating element is arranged in the first mounting cavity of the box body. The installation door is arranged below the heating element, and the diversion trench is arranged at a position corresponding to the installation door and the heating element, so that condensed water generated by the heating element can drop into the diversion trench. In this way, when the heating element generates condensed water in the case of auxiliary heating of the indoor unit of the air conditioner, the condensed water can drop to the diversion trench of the installation door. After the condensed water drops to the diversion trench, the diversion trench diverts the condensed water to the drain hole and discharges the heating device from the drain hole. By the arrangement, condensed water generated by the heating element can be prevented from dripping to other places in the indoor unit of the air conditioner and is blown out from the air outlet by the fan, and the use experience of a user is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a heating device for an air conditioner according to an embodiment of the present disclosure;

FIG. 3 is a schematic view showing a partial structure of a heating apparatus for an air conditioner according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a cartridge and heating element provided in an embodiment of the present disclosure;

FIG. 5 is a schematic view of a mounting door according to an embodiment of the present disclosure;

fig. 6 is a partial structural schematic view of a mounting door provided in an embodiment of the present disclosure.

Reference numerals:

10: a skeleton; 11: a water receiving tray; 12: a drain pipe; 13: an indoor heat exchanger; 20: a heating device for an air conditioner; 30: a case body; 31: a partition plate; 40: installing a door; 41: a heat radiation hole; 42: a drain hole; 43: a diversion trench; 431: a first guiding gutter; 432: a second diversion trench; 50: a heating element.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged where appropriate in order to describe the presently disclosed embodiments. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

An air conditioner generally performs heat exchange between an indoor and an outdoor through an indoor heat exchanger and an outdoor heat exchanger, thereby cooling or heating the indoor. However, when the temperature is low, the heat exchanger heats less efficiently and the heating effect is not good.

Therefore, manufacturers generally set a heating device in the air conditioner, and when the heating requirements of users cannot be met only by the heat exchanger, the users can perform auxiliary heating by the heating device so as to improve the heating efficiency and the heating effect of the indoor unit of the air conditioner.

However, when the air conditioning indoor unit is cooling, the heating device is generally disposed close to the heat exchanger, and therefore condensed water may be generated in the heating device. However, no special water drainage design is performed on the heating device, if the condensed water is not processed, the condensed water can be blown into the air duct by the fan and blown out through the air outlet of the indoor unit of the air conditioner, so that the water blowing phenomenon is caused, and the use experience of a user is reduced.

The disclosed embodiment provides a heating apparatus 20 for an air conditioner including a case 30, a mounting door 40, and a heating element 50. The cartridge 30 includes a first mounting cavity provided with an opening. The mounting door 40 is mounted at the opening of the first mounting chamber, and is provided with a drain hole 42 penetrating the mounting door 40 and a diversion trench 43 communicating with the drain hole 42. The heating element 50 is mounted in the first mounting cavity of the cartridge body 30. The installation door 40 is disposed below the heating element 50, and the diversion trench 43 is disposed at a position of the installation door 40 corresponding to the heating element 50, so that condensed water generated by the heating element 50 can drip into the diversion trench 43.

Specifically, the mounting door 40 is detachably mounted at the opening of the case 30. In the case that the heating element 50 is mounted in the first mounting cavity and the mounting door 40 is mounted in the opening of the box body 30, the flow guide groove 43 is located right below the heating element 50, so that condensed water generated by the heating element 50 can naturally drip into the flow guide groove 43 under the action of gravity. After the condensed water generated by the heating element 50 drops into the diversion trench 43, the condensed water can flow to the drainage hole 42 through the diversion trench 43 and drain out of the box body 30 through the drainage hole 42, so as to avoid the accumulation of the condensed water in the box body 30. Wherein the size of the diversion trench 43 is larger than or equal to the size of the heating element 50, so that the projection of the heating element 50 on the horizontal plane falls into the diversion trench 43 completely. By this arrangement, the condensed water generated by the heating element 50 can be prevented from dripping outside the diversion trench 43.

Alternatively, the mounting door 40 includes a first side portion provided with the drain hole 42 and a second side portion disposed opposite to the first side portion. Wherein the case 30 is inclined such that the first side portion of the mounting door 40 is lower than the second side portion.

It will be appreciated that the heating devices in existing air conditioning indoor units are generally horizontally disposed. In this way, the condensed water which the heating element 50 drops into the case 30 is difficult to automatically drain out of the case 30 without the work of an external force. If the condensed water is accumulated in the box 30 for a long time, the condensed water is easy to cause the phenomenon of blowing water in the air conditioner indoor unit, and the problems of bacteria breeding in the air conditioner indoor unit and the like are also easy to cause, so that the use experience of a user is affected.

In some embodiments, the flow-directing grooves 43 include a first directional flow-directing groove 431 and a second directional flow-directing groove 432. The first direction guide groove 431 is provided to the inner side wall surface of the installation door 40 in a direction consistent with the longitudinal direction of the heating element 50. The second directional guide groove 432 is provided on the inner side wall surface of the installation door 40 so as to intersect the first directional guide groove 431. Wherein the first directional diversion trench 431 and the second directional diversion trench 432 are mutually communicated, and the first directional diversion trench 431 and/or the second directional diversion trench 432 are communicated with the drain hole.

Specifically, the first guiding groove 431 is disposed along the length direction of the mounting door 40, and the second guiding groove 432 is disposed perpendicular to the first guiding groove 431. Thus, the first and second diversion trenches 431 and 432 may together divert condensate water that is dropped from the heating element 50 onto the mounting door 40.

In practical applications, if the first guiding groove 431 is communicated with the drain hole 42, the second guiding groove 432 can guide the condensed water dropped in the second guiding groove 432 by the heating element 50 into the first guiding groove 431, and the first guiding groove 431 guides the condensed water to the drain hole 42. If the second diversion trench 432 is communicated with the drain hole 42, the first diversion trench 431 can first divert the condensed water dropped in the first diversion trench 431 by the heating element 50 into the second diversion trench 432, and the second diversion trench 432 then diverts the condensed water into the drain hole 42. If the first diversion trench 431 and the second diversion trench 432 are both communicated with the drain hole 42, the first diversion trench 431 and the second diversion trench 432 can respectively divert the condensed water dropped from the heating element 50 into the first diversion trench 431 and the second diversion trench 432. The communication modes of the drain hole 42, the first guiding groove 431 and the second guiding groove 432 can be set according to actual requirements, so long as the condensed water dropped by the heating element 50 can be guided to the drain hole 42.

Optionally, the size of the drain hole 42 is greater than or equal to a predetermined size, so as to avoid that the drain hole 42 cannot drain the condensed water out of the box body 30 in time. Meanwhile, in the case that the size of the drain hole 42 is greater than or equal to the preset size, if the guide groove 43 has a small size, the solid foreign matter can be discharged through the drain hole 42.

Specifically, the drain hole 42 is a circular hole, and the diameter of the drain hole 42 is greater than or equal to 4mm and less than or equal to 8mm. For example, the drain hole 42 may be 4mm, 5mm, 6mm, 7mm, or 8mm in diameter.

In some embodiments, the mounting door 40 is provided with a plurality of first directional guide grooves 431 and a plurality of second directional guide grooves 432 on an inner side wall surface thereof.

Specifically, the first plurality of directional guide grooves 431 and the second plurality of directional guide grooves 432 are disposed in a communicating manner, that is, each of the second plurality of directional guide grooves 432 is disposed in a communicating manner with the first plurality of directional guide grooves 431, and each of the first plurality of directional guide grooves 431 is disposed in a communicating manner with the second plurality of directional guide grooves 432. The plurality of first and second directional diversion trenches 431 and 432 communicated with each other are uniformly disposed on the installation door 40 to increase the diversion efficiency of the condensed water.

In the above embodiment, the number of the first direction guide grooves 431 may be determined according to the widths of the heating element 50 and the installation door 40, and the number of the second direction guide grooves 432 may be determined according to the lengths of the heating element 50 and the installation door 40.

In some embodiments, the length of the first directional guide groove 431 is greater than or equal to the longitudinal length of the heating element 50. The length of the second dichroic channel 432 is greater than or equal to the width of the heating element 50.

Specifically, the edge of the diversion trench 43 is in an inclined plane structure, and the plurality of first diversion trenches 431 and the plurality of second diversion trenches 432 can together form a net diversion range. The length of the first diversion trench 431 is greater than or equal to the length of the heating element 50, and the length of the second diversion trench 432 is greater than or equal to the width of the heating element 50, so that the projection of the heating element 50 on the horizontal plane can fall into the diversion range. Meanwhile, since the edge of the guide groove 43 is of a slope structure, even if condensed water falls on the installation door 40, the condensed water can slide into the guide groove 43 through the slope structure.

By width of the heating element 50 is meant the dimension covered by the heating element 50 in a direction perpendicular to the longitudinal direction of the heating element 50. For example, in a case where the heating element 50 described below includes a plurality of heating sheets and the plurality of heating sheets are stacked in the first mounting chamber, the width of the heating element 50 is the distance between the two outermost heating sheets in the stacking direction of the plurality of heating sheets stacked.

In some embodiments, the heating element 50 includes one or more heating fins. The shape of the heating plate is defined as a wave shape.

In particular, in the case where the heating element 50 includes a plurality of heating plates, the plurality of heating plates are stacked in the first mounting chamber, and thus the heating efficiency of the heating plates to the surrounding air flow can be improved. Meanwhile, the heating plate is arranged in a wavy shape, so that the contact area between the heating plate and the air flow can be increased, and the heating efficiency of the heating plate is further improved.

In practical application, the mounting door 40 is provided with a plurality of first directional guide grooves 431, a plurality of second directional guide grooves 432 and a drain hole 42. The first guiding grooves 431 include a first guiding groove 431, a second guiding groove 431 and a plurality of third guiding grooves 431, wherein the plurality of third guiding grooves 431 are disposed between the first guiding groove 431 and the second guiding groove 431. The second dichroic flow guide grooves 432 include a first type second dichroic flow guide groove 432, a second type second dichroic flow guide groove 432, and a plurality of third type second dichroic flow guide grooves 432, wherein the plurality of third type second dichroic flow guide grooves 432 are disposed between the first type second dichroic flow guide groove 432 and the second type second dichroic flow guide groove 432. The heating element 50 includes a first heating plate, a second heating plate, and a plurality of third heating plates, the number of the third heating plates being the same as the number of the third type of the first direction guide grooves 431. The first heating sheet and the second heating sheet of the heating element 50 are oppositely arranged at two sides of the heating element 50, and a plurality of third heating sheets are stacked between the first heating sheet and the second heating sheet. The projections of the first heating sheet and the second heating sheet on the horizontal plane respectively fall into the first type of first guiding grooves 431 and the second type of first guiding grooves 431, and the projections of the plurality of third heating sheets on the horizontal plane respectively fall into the plurality of third type of first guiding grooves 431. Projections of two ends of the first heating sheet, the second heating sheet and the third heating sheet on the horizontal plane fall into the first-type second diversion trench 432 and the second-type second diversion trench 432 respectively. The first second diversion trench 432 is disposed at a first side portion of the mounting door 40, the second diversion trench 432 is disposed at a second side portion of the mounting door 40, and the height of the first side portion of the mounting door 40 is lower than that of the second side portion. The drain hole 42 is disposed at the junction of the first-type second diversion trench 432 and the first-type first diversion trench 431, so that the first-type second diversion trench 432 and the first-type first diversion trench 431 are both communicated with the drain hole 42. If the heating element 50 generates condensed water, the condensed water drops on the second diversion trench 432 and/or the first diversion trench 431. The condensed water flows into the drain hole 42 after being guided by the second guiding groove 432 and the first guiding groove 431, and flows out of the box body 30 through the drain hole 42.

In some embodiments, where the heating element 50 includes a plurality of heating plates, the plurality of heating plates are stacked in a direction along the width of the cartridge body 30. The first guiding grooves 431 are disposed corresponding to the heating plates, so that the projections of the heating plates on the horizontal plane fall into the first guiding grooves 431.

Specifically, the number of the first guiding grooves 431 is the same as the number of the heating fins, and the positions of the first guiding grooves 431 correspond to the positions of the heating fins, so that the projections of the heating fins on the horizontal plane can fall into the first guiding grooves 431 respectively. By this arrangement, the flow guiding efficiency of the flow guiding groove 43 can be increased, and the condensed water generated by the heating sheet can be prevented from falling on the surface of the installation door.

In some embodiments, the mounting door 40 is uniformly provided with a plurality of heat dissipation holes 41, and the heat dissipation holes 41 and the diversion trenches 43 are arranged in a staggered manner.

Specifically, the heating element 50 may heat the air flow flowing through the heating device through the heat dissipation holes 41. In the case where the plurality of first directional guide grooves 431 and the plurality of second directional guide grooves 432 are provided, the heat dissipation hole 41 is provided between the plurality of first directional guide grooves 431 and the plurality of second directional guide grooves 432. The edge of the heat dissipation hole 41 is higher than the diversion trench 43, so as to prevent condensed water in the diversion trench 43 from flowing out of the box body 30 from the heat dissipation hole 41.

Optionally, a mounting structure is also provided in the first mounting cavity of the cartridge 30 for mounting the heating element 50.

Specifically, a partition 31 is provided in the case 30, and the partition 31 and the heating element 50 are disposed perpendicular to each other. The partition 31 is provided with mounting holes to constitute a mounting structure, and the heating element 50 is penetrated through the mounting holes to be mounted in the first mounting chamber. Wherein, the size of the mounting hole is arranged corresponding to the heating element 50, so that the heating element 50 can be stably mounted in the first mounting cavity.

Optionally, a plurality of partitions 31 are uniformly arranged in the box 30 along the length direction, and the heating elements 50 are respectively arranged in the mounting holes of the partitions 31 in a penetrating manner. This arrangement allows for a more stable mounting of the heating element 50 within the first mounting cavity.

Optionally, the case 30 is made of an insulating material. For example, the case 30 may be made of plastic or rubber, or the surface of the case 30 may be covered with insulating paint or insulating glue.

The embodiment of the disclosure also provides an air conditioner indoor unit, which comprises a framework 10 provided with a second installation cavity and an indoor heat exchanger 13 installed in the second installation cavity. The air conditioning indoor unit further includes the heating device 20 for an air conditioner described above. Wherein a heating device 20 for an air conditioner is installed in the second installation cavity of the backbone 10.

Specifically, the heating device 20 for an air conditioner is attached to the outer wall surface of the indoor heat exchanger 13. By this arrangement, the efficiency of the heating device for assisting in heating the air flow flowing through the indoor heat exchanger 13 can be improved.

In the case where the air conditioner indoor unit is turned on in the auxiliary heating mode, the heating device is turned on and heats the air flow passing through the indoor heat exchanger 13 together with the indoor heat exchanger 13.

By adopting the air conditioning indoor unit for the heating device 20 of the air conditioner, condensed water can be prevented from accumulating in the heating device after the heating device is started.

In some embodiments, the air conditioning indoor unit further includes a water pan 11 and a drain pipe 12. The water pan 11 is installed in a position corresponding to the indoor heat exchanger 13 in the second installation cavity of the framework 10. The drain pipe 12 is used to communicate the drain pan 11 with the drain hole 42.

Specifically, the water pan 11 is installed below the indoor heat exchanger 13, and is used for receiving condensed water generated by the indoor heat exchanger 13. The drain hole 42 of the heating device communicates with the water receiving tray 11 through the drain pipe 12. In this way, after the condensed water generated by the heating element 50 drops to the diversion trench 43, the diversion trench 43 diverts the condensed water to the drainage hole 42, and then diverts the condensed water to the water receiving tray 11 through the drainage pipe 12 to avoid the condensed water accumulating in the box body 30.

It can be understood that the water tray 11 is installed at a position corresponding to the indoor heat exchanger 13 in the second installation cavity, and in the case that the indoor heat exchanger 13 operates in the heating mode, the indoor heat exchanger 13 can heat the condensed water in the water tray 11 to accelerate the evaporation speed of the condensed water in the water tray 11, so as to avoid the condensed water from accumulating in the water tray 11.

In some embodiments, a first snap-fit is provided at the drain hole 42. The drain pipe 12 may be fastened to the drain hole 42 by a first fastening portion.

Specifically, the drain pipe 12 is snap-fitted to the drain hole 42, so that the heating device 20 for an air conditioner and the drain pipe 12 can be easily detached or installed.

In some practical applications, the drain hole 42 is provided with a clamping protrusion, and the drain pipe 12 is provided with a clamping groove at a position corresponding to the clamping protrusion. The drain pipe 12 is inserted into the drain hole 42, and the clamping groove can be clamped with the clamping protrusion, so that the drain pipe 12 is clamped with the drain hole 42.

In some embodiments, a second clamping portion is disposed at a position corresponding to the water receiving tray 11 in the framework 10. The drain pipe 12 may be fastened to the framework 10 through a second fastening portion.

Specifically, a second clamping portion is disposed in a position corresponding to the water receiving tray 11 in the second installation cavity of the framework 10, the first end of the drain pipe 12 is clamped in the drain hole 42 through the first clamping portion, and the second end is clamped in a position corresponding to the water receiving tray 11 through the second clamping portion. By the arrangement, the influence of displacement of the two ends of the drain pipe 12 on the flow guiding effect of the drain pipe 12 can be avoided.

Optionally, a plurality of second clamping parts are uniformly arranged in the framework 10 along a preset path, and the middle part of the drain pipe 12 can be clamped in the framework 10 along the preset path through the plurality of second clamping parts so as to avoid displacement of the drain pipe 12.

Alternatively, the drain pipe 12 is a hose, so that it is more convenient to install the drain pipe 12 in the second installation cavity of the skeleton 10.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heating device for an air conditioner, comprising:

the box body comprises a first mounting cavity provided with an opening;

the mounting door is arranged at the opening of the first mounting cavity and is provided with a drain hole penetrating through the mounting door and a diversion trench communicated with the drain hole; and, a step of, in the first embodiment,

the heating element is arranged in the first mounting cavity of the box body;

the installation door is arranged below the heating element, and the diversion trench is arranged at a position corresponding to the installation door and the heating element, so that condensed water generated by the heating element can drop into the diversion trench.

2. The heating apparatus for an air conditioner according to claim 1, wherein the flow guide groove comprises:

the first guiding groove is arranged on the inner side wall surface of the mounting door along the direction consistent with the longitudinal direction of the heating element; and, a step of, in the first embodiment,

the second directional diversion trench is arranged on the inner side wall surface of the mounting door in a manner of intersecting the first directional diversion trench;

wherein, first to guiding gutter and second to guiding gutter intercommunication each other, and, first to guiding gutter and/or second to guiding gutter and wash port intercommunication.

3. A heating apparatus for an air conditioner according to claim 2, wherein,

the length of the first guiding groove is greater than or equal to the longitudinal length of the heating element; and, in addition, the method comprises the steps of,

the length of the second dichroic channel is greater than or equal to the width of the heating element.

4. A heating apparatus for an air conditioner according to claim 2, wherein,

the inner side wall surface of the mounting door is provided with a plurality of first directional diversion trenches and a plurality of second directional diversion trenches.

5. The heating apparatus for an air conditioner according to claim 4, wherein the heating element comprises:

one or more heating plates, and the shape of the heating plates is defined as a wave shape.

6. The heating apparatus for an air conditioner according to claim 5, wherein,

in the case where the heating element includes a plurality of heating sheets, the plurality of heating sheets are stacked in the direction of the width of the case; and, in addition, the method comprises the steps of,

the first guiding grooves are respectively and correspondingly arranged with the heating plates, so that the projections of the heating plates on the horizontal plane fall into the first guiding grooves respectively.

7. A heating apparatus for an air conditioner according to any one of claims 1 to 4,

the installing door is evenly distributed with a plurality of radiating holes, and the radiating holes and the diversion trenches are arranged in a staggered mode.

8. The utility model provides an indoor unit of air conditioner, includes the skeleton that is provided with the second installation cavity and installs the indoor heat exchanger in the second installation cavity, its characterized in that still includes:

the heating device for an air conditioner according to any one of claims 1 to 7;

wherein, a heating device for an air conditioner is installed in the second installation cavity of the framework.

9. The indoor unit of claim 8, further comprising:

the water receiving disc is arranged in the second installation cavity of the framework and corresponds to the indoor heat exchanger; and, a step of, in the first embodiment,

and the drain pipe is used for communicating the water receiving disc and the drain hole.

10. The indoor unit of claim 9, wherein the indoor unit of the air conditioner,

a first clamping part is arranged at the drain hole; one end of the drain pipe can be clamped in the drain hole through the first clamping part; and/or the number of the groups of groups,

the position corresponding to the water receiving disc in the framework is provided with a second clamping part, and the other end of the drain pipe can be clamped in the framework through the second clamping part.