air conditioner indoor unit

Abstract

This application discloses an indoor air conditioner unit, belonging to the technical field of air conditioning. The indoor air conditioner unit includes a casing, an indoor heat exchanger, and a heater. The indoor heat exchanger and heater are disposed inside the casing, and the heater is used to heat the air passing through it. The heater is arranged in parallel with the indoor heat exchanger. The heater is configured to assist the indoor heat exchanger in heating when the indoor heat exchanger is working as a condenser. The heater includes a heating element and a base. A receiving cavity for accommodating the heating element is defined within the base, and the receiving cavity extends along the length direction of the base. Multiple receiving cavities are provided, and the multiple receiving cavities are arranged independently. Each receiving cavity is provided with a heating element to increase the overall heating efficiency of the heater. Compared with multiple single-cavity heaters, multi-cavity heaters can have a smaller volume while achieving the same heating efficiency, and multi-cavity heaters are more convenient to arrange in the indoor air conditioner unit.

Description

Technical Field

[0001] This application belongs to the technical field of air conditioning, and particularly relates to an indoor unit of an air conditioner. Background Technology

[0002] When the outdoor temperature is low, the efficiency of the air conditioner's indoor unit decreases, making it difficult to meet user needs for heating, especially in cold regions. To compensate for this, some air conditioner indoor units incorporate auxiliary heating devices to raise the indoor temperature and ensure user comfort.

[0003] The shovel-blade PTC heater is a commonly used auxiliary heating device. It features fast heating speed, high heat conversion efficiency, and a relatively compact structure, making it easy to install in the indoor unit of an air conditioner.

[0004] However, in related technologies, the number of thermistors in the shovel PTC heater is relatively small, and the heat generation of the thermistors is limited, which cannot provide sufficient auxiliary heat for the shovel PTC heater. As a result, the heating efficiency of the entire shovel PTC heater is low, and it cannot meet the requirements of the indoor unit of the air conditioner. Utility Model Content

[0005] In view of the shortcomings of the related technologies, this application provides an air conditioner indoor unit, which increases the overall heating efficiency of the heater by setting multiple receiving cavities in the base, and setting heating components in each receiving cavity, while avoiding the heater being too large and facilitating the arrangement of the heater in the air conditioner indoor unit.

[0006] This application provides an indoor unit for an air conditioner, comprising: chassis; The indoor heat exchanger, located inside the casing, is used to exchange heat with the air passing through it; the indoor heat exchanger, compressor, and outdoor heat exchanger together form a refrigerant circulation loop. A heater, located within the casing, is used to heat the air passing through it; the heater is arranged parallel to the indoor heat exchanger; the heater is configured to assist the indoor heat exchanger in heating when the indoor heat exchanger is operating as a condenser; the heater includes: Heating components; The substrate has a cavity defined within it for accommodating the heating assembly, the cavity extending along the length of the substrate; The system comprises multiple cavities, each independently configured; each cavity contains a heating element.

[0007] In the technical solution, multiple receiving cavities are set in the base, and each receiving cavity is equipped with a heating component to increase the overall heating efficiency of the heater. Compared with multiple single-cavity heaters, multi-cavity heaters can have a smaller volume while achieving the same heating efficiency, and multi-cavity heaters are more convenient to arrange in the indoor unit of an air conditioner.

[0008] In some embodiments of this application, a partition is provided in the matrix, the length direction of the partition is arranged along the length direction of the matrix; the two ends of the partition in the height direction are arranged corresponding to the two inner walls opposite to each other in the height direction of the matrix; the partition is used to divide the interior of the matrix into multiple receiving cavities.

[0009] In the technical solution, by setting a partition in the substrate, the interior of the substrate is divided into multiple accommodating cavities; by setting the length direction of the partition along the length direction of the substrate, the partition can fully isolate two adjacent accommodating cavities, ensuring the heating effect of the heating component in each accommodating cavity.

[0010] In some embodiments of this application, the partition includes a first end and a second end in the height direction. The first end and the second end are provided on two inner walls of the substrate that are opposite each other in the height direction of the substrate. The first end is fixedly connected to the inner wall of the corresponding substrate. The inner wall of the substrate corresponding to the second end is provided with a positioning part. The second end and the positioning part are spaced apart in the height direction of the substrate. After the substrate is pressed, the partition is located in the positioning part.

[0011] In the technical solution, by setting a positioning part on the inner wall of the substrate, the separation part and the positioning part are spaced apart along the height direction of the substrate, so as to avoid the separation part having a negative effect on the molding of the substrate. Furthermore, through the cooperation between the separation part and the positioning part, the substrate can be limited, so that the substrate is molded along the height direction of the substrate.

[0012] In some embodiments of this application, positioning ribs are provided on the two cavity walls opposite each other along the width direction of the base, and the positioning ribs are positioned toward the heating component to limit the placement position of the heating component in the cavity.

[0013] In the technical solution, positioning ribs are provided on the cavity wall of the receiving cavity to position the heating component, so that the heating component is placed in the required position within the receiving cavity.

[0014] In some embodiments of this application, the outer periphery of the substrate is provided with heat dissipation fins, and the heat dissipation fins are configured in multiple groups, with each group of heat dissipation fins corresponding to a multiple receiving cavity; The outer side of the substrate is provided with a molding part corresponding to the positioning rib, and the heat dissipation fins are set away from the molding part.

[0015] In the technical solution, by setting a molding part on the outside of the substrate, the heat dissipation fins are set away from the molding part, so as to avoid the heat dissipation fins being set on the molding part and interfering with the molding of the substrate; by setting the molding part and the positioning ribs in correspondence, the heating component can avoid the molding part, thereby preventing the heating component from being crushed by the substrate during molding.

[0016] In some embodiments of this application, in the arrangement direction of the receiving cavity, the distance between the positioning ribs on opposite sidewalls within the same receiving cavity is less than the width of the heat dissipation fins.

[0017] In the technical solution, by making the width of the heat dissipation fins greater than the distance between adjacent positioning ribs, it is ensured that the heating component is covered by the heat dissipation fins in the arrangement direction of the receiving cavity, thereby preventing the heating component from being crushed by the substrate during molding.

[0018] In some embodiments of this application, an insulating layer is provided around the heating assembly, and the insulating layer is located inside the receiving cavity to isolate the electrode sheet from the substrate.

[0019] In the technical solution, an insulating layer is set on the outer periphery of the heating component to isolate the electrode sheet from the substrate, thereby preventing the current on the electrode sheet from being transmitted to the substrate and causing safety hazards.

[0020] In some embodiments of this application, the heating assembly includes an electrode sheet and a heating element. The electrode sheet is configured as two pieces, which are correspondingly disposed on opposite sides of the heating element. The electrode sheet is disposed along the length direction of the substrate. One end of the electrode sheet is connected to a terminal, which is located outside the receiving cavity and is used to connect to a power source.

[0021] In the technical solution, two electrode plates are arranged on opposite sides of the heating element. The electrode plates are connected to the power supply through terminals so that current is transmitted through the electrode plates to the heating element, thereby causing the heating element to generate heat.

[0022] In some embodiments of this application, multiple heating elements are provided, and the multiple heating elements are arranged along the length direction of the electrode sheet; the electrode sheet is attached to the heating element.

[0023] In the technical solution, multiple heating elements are used to increase the heating effect of the heating component; multiple heating elements are arranged along the length of the electrode sheet to facilitate connection between the electrode sheet and multiple heating elements.

[0024] In addition, this application also provides an air conditioner indoor unit, comprising: The casing has an air inlet and an air outlet; An indoor heat exchanger, located inside the casing, is used to heat the air passing through it. An indoor fan is located inside the casing. When the indoor fan is running, air enters the casing through the air inlet and exchanges heat with the indoor heat exchanger before being discharged from the casing through the air outlet. A heater for heating the air passing through it, the heater being installed in parallel with the indoor heat exchanger; the heater includes: Matrix; The heating element is located inside the base; multiple heating elements are configured independently of each other. A partition is provided in the substrate to divide the interior of the substrate into multiple accommodating cavities, which are arranged along the width of the substrate; each accommodating cavity is provided with a heating component.

[0025] In the technical solution, multiple heating components are provided in the substrate to increase the heating efficiency of the heater; by providing a partition in the substrate, the partition divides the interior of the substrate into multiple accommodating cavities, and isolates the multiple heating components from each other, so that the heating components can work independently in their respective accommodating cavities, thereby increasing the reliability of the heating components and avoiding mutual interference between the heating components.

[0026] In the above embodiments, an air conditioner indoor unit provides multiple accommodating cavities in its base, with each cavity containing a heating component. This increases the overall heating efficiency of the heater while avoiding excessively large heater volumes, thus facilitating the arrangement of the heater within the air conditioner indoor unit. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a heater in the prior art; Figure 2 This is a schematic diagram of the heater structure in one embodiment of the indoor unit of the air conditioner in this application; Figure 3 This is a schematic diagram of the heater at another angle in one embodiment of the indoor unit of the air conditioner in this application; Figure 4 yes Figure 3 Sectional view of AA; Figure 5 yes Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the heating component in the first embodiment of the air conditioner indoor unit in this application; Figure 7 This is a schematic diagram of the heating assembly after the substrate is pressed in the first embodiment of the air conditioner indoor unit in this application; Figure 8 This is a schematic diagram showing the dimensions of the heating component in the first embodiment of the air conditioner indoor unit in this application; Figure 9 This is a schematic diagram of the heating component in one embodiment of the indoor unit of the air conditioner in this application; Figure 10This is a schematic diagram of the structure of an indoor air conditioner unit in this application, where the base has three accommodating cavities.

[0028] In the diagram, 100 is the substrate; 200 is the heating element; 300 is the heat dissipation fins; and 400 is the insulation layer. 101. Receiving cavity; 102. Positioning part; 103. Forming part; 110. Positioning rib; 120. Dividing section; 210 Terminal; 220 Heating element; 230 Electrode plate. Detailed Implementation

[0029] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0030] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0031] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0032] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0033] The air conditioning indoor unit provided in this application can have various implementation forms. This application provides an air conditioning indoor unit, which is installed indoors. Multiple indoor units are typically configured, and these multiple indoor units are independently installed; the multiple indoor units are connected to the same outdoor unit.

[0034] Each indoor unit includes an indoor heat exchanger, which is used to exchange heat with the air passing through it. When the indoor unit is heating, the indoor heat exchanger works as a condenser; when the indoor unit is cooling, the indoor heat exchanger works as an evaporator.

[0035] An air conditioner indoor unit includes a casing, and an indoor heat exchanger is located inside the casing. An air inlet is formed on the casing, through which air enters the casing and exchanges heat with the indoor heat exchanger.

[0036] An air outlet is formed on the casing, and the air that has exchanged heat with the indoor heat exchanger is output from the air outlet to the casing.

[0037] An air conditioner indoor unit includes an indoor fan, which is located inside the casing. The operation of the indoor fan causes air to enter the casing through the air inlet, exchange heat with the indoor heat exchanger, and then exit the casing through the air outlet.

[0038] The outdoor unit includes an outdoor heat exchanger, which is used to exchange heat with the air passing through it. When the indoor unit of the air conditioner is heating, the outdoor heat exchanger works as an evaporator; when the indoor unit of the air conditioner is cooling, the outdoor heat exchanger works as a condenser.

[0039] The outdoor unit includes a compressor, which is used to compress the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure state to drive the refrigerant flow.

[0040] The indoor heat exchanger, compressor, and outdoor heat exchanger together form a refrigerant circulation loop. The refrigerant flows within the refrigerant circulation loop to achieve cooling and heating in the indoor unit of the air conditioner.

[0041] When the indoor unit of an air conditioner is heating, if the heating capacity of the indoor unit is insufficient, an additional heater is usually installed in the indoor unit to assist the indoor heat exchanger in heating, thereby increasing the heating effect of the indoor unit.

[0042] The indoor unit of the air conditioner includes a heater, which is located inside the casing. The heater is used to heat the air passing through it. The heater is arranged in parallel with the indoor heat exchanger. The heater is configured to assist the indoor heat exchanger in heating when the indoor heat exchanger is working as a condenser; and to not work when the indoor heat exchanger is working as an evaporator.

[0043] In related technologies, there are various types of heaters. The shovel PTC heater is a commonly used type. The shovel PTC heater has the characteristics of fast heating speed and high heat conversion efficiency, and its structure is relatively compact, making it easy to install in the small space inside the indoor unit.

[0044] like Figures 1-4 As shown, the heater includes a heating element 200, which is configured to generate heat when energized to heat the air passing through the heater, thereby increasing the heating effect of the indoor unit.

[0045] The heater includes a base 100 for mounting a heating assembly 200; a receiving cavity 101 is defined within the base 100, and the heating assembly 200 is disposed within the receiving cavity 101 so that the base 100 can mount and protect the heating assembly 200.

[0046] The length direction of the substrate 100 is set along the length direction of the heater, the width direction of the substrate 100 is set along the width direction of the heater, and the height direction of the substrate 100 is set along the height direction of the heater.

[0047] One end of the base 100 along its length is provided with an opening communicating with the receiving cavity 101, so that the heating assembly 200 can be placed in or removed from the receiving cavity 101 through the opening. In some embodiments, the substrate 100 is an aluminum tube, so that the substrate 100 has a better thermal conductivity and can exchange the heat generated by the heating component 200 with the air in a timely manner.

[0048] like Figures 1-3 As shown, the heater includes heat dissipation fins 300, which are disposed on the outer side of the base 100 to increase the contact area between the base 100 and the air, thereby increasing the heat exchange rate between the heater and the air.

[0049] In some embodiments, heat dissipation fins 300 are respectively disposed on both sides of the base 100 in the height direction.

[0050] like Figure 1 As shown, in related technologies, the substrate 100 of the finned PTC heater is usually provided with a receiving cavity 101, which results in a limited number of heating components 200 that can be installed in the heater, making the heater's heating efficiency low and unable to meet the heating requirements of the air conditioning indoor unit well.

[0051] Based on this, in this application, by setting multiple receiving cavities 101 in the heater, each receiving cavity 101 is provided with a heating component 200, so as to increase the overall heating efficiency of the heater; compared with multiple single-cavity heaters, multi-cavity heaters can have a smaller volume while achieving the same heating efficiency, and multi-cavity heaters are more convenient to be arranged in the indoor unit of air conditioner.

[0052] Specifically, such as Figure 4 As shown, a plurality of receiving cavities 101 are defined within the substrate 100, and the plurality of receiving cavities 101 are independently arranged; each receiving cavity 101 is provided with a heating component 200 to increase the overall heating efficiency of the heater.

[0053] The receiving cavity 101 extends along the length of the base 100 so that the receiving cavity 101 has a large size, which can accommodate a larger heating component 200, thereby increasing the heating efficiency of the heater.

[0054] Multiple receiving cavities 101 are arranged along the width direction of the base 100, or they can be arranged along the height direction of the base 100. It should be noted that since the width dimension of the base 100 is usually larger than its height dimension, arranging multiple receiving cavities 101 along the width direction of the base 100 allows for a larger contact area between the base 100 and the air, thereby improving the heating effect of the heater on the air. In this embodiment, the arrangement of multiple receiving cavities 101 along the width direction of the base 100 is used as an example.

[0055] like Figure 4 As shown, the heat dissipation fins 300 are configured in multiple groups, and the multiple groups of heat dissipation fins 300 are configured one-to-one with multiple receiving cavities 101, so that the heat generated by the heating component 200 in the corresponding receiving cavity 101 can be exchanged with the air in a timely manner through the heat dissipation fins 300.

[0056] like Figure 5 As shown, the substrate 100 is provided with a partition 120, which is used to divide the interior of the substrate 100 into multiple receiving cavities 101, so that the receiving cavities 101 are arranged in a one-to-one correspondence with the heating components 200, and each receiving cavity 101 is provided with a heating component 200.

[0057] It should be noted that the multiple heating components 200 are isolated from each other by the partition 120 to ensure the reliability of the operation of the multiple heating components 200 and to avoid mutual interference of the heat generated by the multiple heating components 200.

[0058] The length direction of the partition 120 is arranged along the length direction of the base 100, that is, the length direction of the partition 120 is along the extension direction of the receiving cavity 101, so that the partition 120 can fully isolate two adjacent receiving cavities 101 and ensure the heating effect of the heating component 200 in each receiving cavity 101.

[0059] like Figure 6 and Figure 7 As shown, positioning ribs 110 are provided on the two cavity walls opposite each other along the arrangement direction of the receiving cavity 101. The positioning ribs 110 are arranged toward the heating component 200 to limit the setting position of the heating component 200 in the receiving cavity 101, so that the heating component 200 is set in the desired position in the receiving cavity 101.

[0060] It should be noted that the side of the positioning rib 110 facing the heating component 200 is an arc surface to avoid the positioning rib 110 scratching the heating component 200.

[0061] In some embodiments, the receiving cavity 101 is provided with positioning ribs 110 on its opposite side walls along its arrangement direction to better position the heating component 200 so that the heating component 200 is in the middle position within the receiving cavity 101.

[0062] like Figure 8 As shown, the dimension of the heating component 200 in the arrangement direction of the receiving cavity 101 is the width of the heating component 200. The width D1 of the heating component 200 is less than or equal to the distance D2 between two positioning ribs 110 that are opposite each other in the same receiving cavity 101 along its arrangement direction, so that the heating component 200 can be disposed between the two positioning ribs 110.

[0063] In some embodiments, the width D1 of the heating assembly 200 is 12 mm, and the distance D2 between the two positioning ribs 110 in the same receiving cavity 101 is 14 mm.

[0064] It should be noted that the partition 120 is also used to form the cavity wall of the receiving cavity 101, and the partition 120 is provided with positioning ribs 110; since two adjacent receiving cavities 101 are separated by the partition 120, the partition 120 is used on both sides of the base 100 in the width direction to form the cavity wall of the adjacent receiving cavity 101, that is, the partition 120 is provided with positioning ribs 110 on both sides of the base 100 in the width direction.

[0065] In some embodiments, the partition 120 has a cross-shaped structure.

[0066] In order to facilitate the placement of the heating component 200 in the receiving cavity 101, the size of the receiving cavity 101 is usually large. However, after the heating component 200 is placed in the receiving cavity 101, the heating component 200 is prone to shaking, which reduces the reliability of the heating component 200 in operation.

[0067] Based on this, in some embodiments, after the heating component 200 is placed in the receiving cavity 101, the base 100 is usually pressed to reduce the size of the receiving cavity 101 in the height direction of the base 100, so that the cavity wall of the receiving cavity 101 in the height direction of the base 100 fits against the heating component 200 to prevent the heating component 200 from shaking in the receiving cavity 101 and to ensure the reliability of the operation of the heating component 200; at the same time, positioning ribs 110 are provided on the cavity wall of the receiving cavity 101 to limit the heating component 200, which can prevent the heating component 200 from being crushed when the base 100 is pressed.

[0068] like Figure 6 As shown, a molding section 103 is provided on the outer side of the substrate 100, and the heat dissipation fins 300 are disposed away from the molding section 103 to avoid the heat dissipation fins 300 being disposed on the molding section 103 and interfering with the molding of the substrate 100.

[0069] It should be noted that, since the dimensions of the substrate 100 in the height direction are relatively small, the substrate 100 is usually pressed along the height direction of the substrate 100.

[0070] For ease of description, in this embodiment, the height direction of the heater is set along the vertical direction, and the two sides in the height direction of the base 100 correspond to the upper side and the lower side of the base 100.

[0071] In some embodiments, the molding portion 103 is a plane provided on the upper side and the lower side of the substrate 100, so that pressure is applied to the substrate 100 at the molding portion 103, thereby molding the substrate 100.

[0072] It should be noted that, in the height direction of the substrate 100, the positioning rib 110 is provided correspondingly to the forming part 103 to prevent the heating component 200 from being damaged by the substrate 100 during forming.

[0073] Since the positioning rib 110 is located in the receiving cavity 101, the heating component 200 will not be installed where the positioning rib 110 is installed. Therefore, the force will not be applied to the heating component 200 when the base 100 is being pressed, thereby preventing the heating component 200 from being crushed.

[0074] When multiple receiving cavities 101 are arranged along the width direction of the base 100, positioning ribs 110 are provided on the two cavity walls of the receiving cavity 101 that are arranged opposite to each other along the width direction of the base 100.

[0075] In the arrangement direction of the receiving cavity 101, that is, in the width direction of the base 100, the distance D2 between the positioning ribs 110 on opposite sidewalls in the same receiving cavity 101 is less than the width D3 of the heat dissipation fins 300, so that the heating component 200 can be fully covered by the heat dissipation fins 300 in the arrangement direction of the receiving cavity 101, thereby preventing the base 100 from damaging the heating component 200 during molding.

[0076] Since the heat dissipation fins 300 are not pressed during the molding of the substrate 100, it can be concluded that the position corresponding to the heat dissipation fins 300 in the height direction of the substrate 100 will not be subjected to pressure. The positioning ribs 110 limit the heating component 200. In the width direction of the substrate 100, the heating component 200 is located between the two positioning ribs 110. Therefore, by making the distance between the positioning ribs 110 on opposite sidewalls in the same receiving cavity 101 smaller than the width of the heat dissipation fins 300, the heating component 200 can be located directly below the heat dissipation fins 300, thereby ensuring that the heating component 200 will not be damaged during the molding of the substrate 100.

[0077] Since the partition 120 is used to divide the interior of the base 100 into multiple receiving cavities 101, and the receiving cavities 101 usually need to be isolated from each other when the heating assembly 200 is working, in order to prevent heat from being transferred between two receiving cavities 101 and affecting the operation of the heating assembly 200. The partition 120 can easily support the base 100 when the base 100 is being pressed, making the base 100 less susceptible to being pressed.

[0078] Based on this, in this application, before the substrate 100 is molded, one end of the partition 120 along the height direction of the substrate 100 is connected to the substrate 100, and the other end is at a distance from the substrate 100 along the height direction of the substrate 100, so that after the substrate 100 is molded, the two ends of the partition 120 in the height direction of the substrate 100 can respectively contact the two inner walls opposite to the substrate 100, thereby isolating the adjacent receiving cavities 101.

[0079] In some embodiments, such as Figure 5 As shown, a positioning part 102 is provided on one inner wall of the substrate 100 along its height direction. One end of the partition part 120 is positioned opposite the positioning part 102, and one end of the partition part 120 is connected to the other inner wall of the substrate 100 along its height direction. When the substrate 100 is being pressed, the end of the partition part 120 facing the positioning part 102 extends into the positioning part 102. This not only prevents the partition part 120 from playing a negative role when the substrate 100 is being pressed, but also prevents the substrate 100 from tilting along its width direction by utilizing the cooperation between the partition part 120 and the positioning part 102. If the substrate 100 tilts along its width direction, the heating assembly 200 may be damaged by the pressure transmitted by the substrate 100.

[0080] It should be noted that when the substrate 100 deforms, the heating component 200 may be subjected to plastic deformation pressure applied by the substrate 100. The plastic deformation pressure is usually small, and the heating component 200 will not be damaged under the plastic deformation pressure.

[0081] like Figure 6 As shown, during the molding process, pressure is applied to the molding section 103 to mold the substrate 100. Under the action of the positioning rib 110, the heating component 200 is located in the middle part of the receiving cavity 101, that is, the heating component 200 is located directly below the heat dissipation fins 300, while the heat dissipation fins 300 avoid the molding section 103. Therefore, the heating component 200 will not be subjected to rigid vertical pressure, but may only be subjected to plastic deformation pressure, thereby eliminating the phenomenon of the heating component 200 being crushed and eliminating potential quality problems.

[0082] like Figure 9 As shown, the heating component 200 includes a heating element 220, which generates heat when powered on.

[0083] In some embodiments, the heating element 220 is a thermistor.

[0084] The heating assembly 200 includes an electrode plate 230 connected to a heating element 220. The electrode plate 230 is used to transmit current so that the heating element 220 can be energized and heated.

[0085] Two electrode plates 230 are provided, which are respectively arranged on opposite sides of the heating element 220. One electrode plate 230 is connected to the neutral wire of the power supply, and the other electrode plate 230 is connected to the live wire of the power supply, so that the two electrode plates 230 and the heating element 220 together form a current loop, thereby realizing the transmission of current.

[0086] One end of the electrode plate 230 is connected to a terminal 210, which is used to connect to a power source so that the power source supplies power to the electrode plate 230.

[0087] In some embodiments, terminal 210 is soldered to electrode sheet 230.

[0088] In some embodiments, multiple heating elements 220 are provided to increase the heating effect of the heating assembly 200.

[0089] Multiple heating elements 220 are arranged along the length of the electrode sheet 230, and the electrode sheet 230 is arranged along the length of the substrate 100 so as to facilitate the connection between the electrode sheet 230 and the multiple heating elements 220.

[0090] The electrode 230 is attached to the heating element 220 so that current can be transmitted between the electrode 230 and the heating element 220.

[0091] In some embodiments, two electrode plates 230 are respectively disposed on both sides of the heating element 220 along the height direction of the heater, so that the electrode plates 230 and the heating element 220 can be tightly attached under the action of gravity.

[0092] In some embodiments, the electrode sheet 230 is made of metal to give it good conductivity.

[0093] like Figure 9 As shown, the heating assembly 200 is surrounded by an insulating layer 400, which is located in the receiving cavity 101. The insulating layer 400 is used to isolate the electrode plate 230 from the substrate 100 to prevent the current on the electrode plate 230 from being transmitted to the substrate 100 and causing safety hazards.

[0094] In some embodiments, the receiving cavity 101 is a through cavity extending along the length direction of the base 100, so that the heating component 200 can be inserted into the receiving cavity 101 from any opening of the base 100, which facilitates the installation of the heating component 200.

[0095] The substrate 100 is sealed at both ends with waterproof silicone to prevent moisture from entering the receiving cavity 101 and avoid adverse consequences.

[0096] It should be noted that the receiving cavity 101 can be configured as two or three. When the receiving cavity 101 is configured as two, the partition 120 is configured as one, so as to divide the interior of the base 100 into two receiving cavities 101; for example Figure 10 As shown, when there are three accommodating cavities 101, there are two partitions 120 to divide the interior of the base 100 into three accommodating cavities 101.

[0097] The above-mentioned air conditioner indoor unit has multiple receiving cavities 101 set in the base 100, and each receiving cavity 101 is equipped with a heating component 200, so as to increase the overall heating efficiency of the heater and avoid the heater being too large, which facilitates the arrangement of the heater in the air conditioner indoor unit.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0099] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. An air conditioner indoor unit characterized by comprising: include: chassis; An indoor heat exchanger, located inside the casing, is used to exchange heat with the air passing through it; the indoor heat exchanger, the compressor, and the outdoor heat exchanger together form a refrigerant circulation loop; A heater, disposed within the housing, is used to heat air passing through it; the heater is arranged parallel to the indoor heat exchanger; the heater is configured to assist the indoor heat exchanger in heating when the indoor heat exchanger is operating as a condenser; the heater includes: Heating components; A substrate, wherein a receiving cavity for accommodating the heating assembly is defined within the substrate, the receiving cavity extending along the length direction of the substrate; The accommodating cavity is configured as a plurality of independent accommodating cavities; each accommodating cavity is provided with a heating component.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The matrix is ​​provided with a partition, the length of which is arranged along the length of the matrix; the two ends of the partition in the height direction are arranged corresponding to the two inner walls opposite to each other in the height direction of the matrix; the partition is used to divide the interior of the matrix into multiple receiving cavities. 3.The indoor unit of the air conditioner according to claim 2, characterized by, The partition has a first end and a second end in its height direction. The first end is fixedly connected to the inner wall of the corresponding substrate. The inner wall of the substrate corresponding to the second end has a positioning part. The second end and the positioning part are spaced apart in the height direction of the substrate. After the substrate is pressed, the partition is located in the positioning part. 4.The indoor unit of the air conditioner according to claim 1, characterized by, The receiving cavity has positioning ribs on two opposing cavity walls along the width direction of the base. The positioning ribs are positioned toward the heating assembly and are used to limit the placement position of the heating assembly in the receiving cavity. 5.The indoor unit of the air conditioner according to claim 4, characterized in that, The outer periphery of the substrate is provided with heat dissipation fins, and the heat dissipation fins are configured in multiple groups, with each group of heat dissipation fins corresponding to one of the multiple receiving cavities. The outer side of the substrate is provided with a forming part corresponding to the positioning rib, and the heat dissipation fins are arranged to avoid the forming part. 6.The indoor unit of the air conditioner according to claim 5, characterized in that, In the arrangement direction of the receiving cavity, the distance between the positioning ribs on opposite sidewalls within the same receiving cavity is less than the width of the heat dissipation fins.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The heating component is configured to heat when energized, and an insulating layer is provided around the outer periphery of the heating component to isolate the heating component from the substrate. 8.The indoor unit of the air conditioner according to claim 1, characterized by, The heating assembly includes electrode plates and heating elements. The electrode plates are configured as two plates, which are correspondingly arranged on opposite sides of the heating element. The electrode plates are arranged along the length of the substrate. One end of each electrode plate is connected to a terminal located outside the receiving cavity, and the terminal is used to connect to a power source. 9.The indoor unit of the air conditioner of claim 8, characterized in that, The heating element is configured as a plurality of heating elements, which are arranged along the length direction of the electrode sheet; the electrode sheet is attached to the heating element.

10. An air conditioner indoor unit characterized by comprising: include: The casing has an air inlet and an air outlet; An indoor heat exchanger, located inside the casing, is used to heat the air passing through it; An indoor fan is installed inside the casing. When the indoor fan is running, air enters the casing through the air inlet and exchanges heat with the indoor heat exchanger before being discharged from the casing through the air outlet. A heater for heating air passing through it, the heater being arranged in parallel with the indoor heat exchanger; the heater includes: Matrix; A heating element is disposed inside the substrate; multiple heating elements are configured independently of each other. A partition is provided in the substrate, which is used to divide the interior of the substrate into multiple receiving cavities, and the multiple receiving cavities are arranged along the width direction of the substrate; each receiving cavity is provided with the heating component.

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