Indoor unit and heating, ventilation, and air conditioning device

Abstract

The present application discloses an indoor unit and a heating, ventilation, and air conditioning device. The indoor unit is applied to a heating, ventilation, and air conditioning device and comprises a housing, a blower wheel, and a motor. A heat exchange air duct and a heat dissipation air duct are formed in the housing, and the housing is provided with a return air inlet and a supply air outlet that are communicated with the heat exchange air duct and an air inlet and an air outlet that are communicated with the heat dissipation air duct; the blower wheel is arranged in the heat exchange air duct; the motor is arranged in the heat dissipation air duct, and is transmittingly connected to the blower wheel; and the air inlet enables the heat dissipation air duct to be communicated with the outside, and the air outlet enables the heat dissipation air duct to be communicated with the heat exchange air duct.

Description

Indoor units and HVAC equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 25, 2024, with application number 202420587383.6, and invention name “Indoor unit and HVAC equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of air conditioning equipment, and in particular to an indoor unit and a heating and ventilation equipment using the indoor unit. Background Art

[0003] In an indoor unit, the drive motor is coaxially mounted at one end of the impeller, driving its rotation. Over extended use, the drive motor generates significant heat. However, its internal location makes it difficult to dissipate this heat quickly and easily. This can degrade the motor's performance and shorten its lifespan. Summary of the Invention

[0004] The embodiments of the present application provide an indoor unit and HVAC equipment that can effectively dissipate the heat generated by the motor.

[0005] In the first aspect, an embodiment of the present application provides an indoor unit, comprising a shell, a wind wheel and a motor, wherein a heat exchange duct and a heat dissipation duct are formed in the shell, and a return air port and an air outlet connected to the heat exchange duct, and an air inlet and an air outlet connected to the heat dissipation duct are provided; the wind wheel is arranged in the heat exchange duct; the motor is arranged in the heat dissipation duct and is transmission-connected to the wind wheel; wherein the air inlet is connected to the heat dissipation duct and the outside world, and the air outlet is connected to the heat dissipation duct and the heat exchange duct.

[0006] In some embodiments, the heat exchanger is further provided in the heat exchange air duct, wherein the heat exchanger is located between the wind wheel and the return air port;

[0007] The air outlet is communicated with a cavity of the heat exchange air duct located between the wind wheel and the air outlet side of the heat exchanger.

[0008] In some embodiments, the heat exchanger is further provided in the heat exchange air duct, wherein the heat exchanger is located between the wind wheel and the return air port;

[0009] The heat exchange air duct includes a return air area connected to the air inlet side of the heat exchanger and the return air port, and the air outlet is connected to the return air area.

[0010] In some embodiments, a filter device is further included. The filter device is connected to the shell and located at the return air inlet. In the direction from the return air inlet to the air inlet side of the heat exchanger, there is a gap between the air outlet and the filter device.

[0011] In some embodiments, the heat dissipation duct and the heat exchange duct are arranged in parallel.

[0012] In some embodiments, the housing includes a volute, a water receiving tray, and an outer shell, the volute and the water receiving tray are arranged in the outer shell, and the impeller is installed in the volute;

[0013] The opposite sides of the heat exchanger abut against the volute and the water receiving pan respectively, and the outer shell, the volute, the heat exchanger and the water receiving pan cooperate to form the heat dissipation duct;

[0014] The shell is provided with the air inlet, and the air inlet is arranged in a horizontal direction.

[0015] In some embodiments, the air inlet is covered with an air inlet grille.

[0016] In some embodiments, a motor mounting bracket connected to the volute is further included, wherein the motor mounting bracket is located in the heat dissipation duct and has an installation space configured to install the motor;

[0017] Wherein, the motor mounting frame is provided with a plurality of heat dissipation holes which are arranged at intervals and connect the mounting space and the heat dissipation duct.

[0018] In some embodiments, the outer wall surface of the motor mounting bracket abuts against the inner wall surface of the heat dissipation duct to separate the heat dissipation duct into an air inlet area communicating with the air inlet and an air outlet area communicating with the heat exchange duct;

[0019] Part of the heat dissipation holes is connected to the air inlet area and the installation space, and part of the heat dissipation holes is connected to the installation space and the air outlet area.

[0020] In some embodiments, the motor mounting bracket includes a motor mounting seat and a motor cover detachably connected to the motor mounting seat, and the motor mounting seat and the motor cover enclose the mounting space;

[0021] Wherein, the motor mounting seat and the volute are integrally formed components.

[0022] In some embodiments, a side plate is provided between the volute and the motor mounting base, the heat exchanger is abutted against an end of the side plate away from the wind wheel, an air outlet is provided on the side plate, and the air outlet is located between the wind wheel and the heat exchanger.

[0023] In the indoor unit according to the embodiment of the present application, a heat exchange duct and a heat dissipation duct are provided within the housing, the heat exchange duct and the heat dissipation duct are connected, a fan is provided within the heat exchange duct, and a motor is provided within the heat dissipation duct. When the fan continuously draws outside air from the return air inlet into the heat exchange duct, a certain negative pressure effect is generated. The air outlet of the heat dissipation duct is provided adjacent to the return air inlet. Thus, driven by the negative pressure environment, some air enters the heat dissipation duct from the air inlet, flows toward the air outlet, and then enters the heat exchange duct. Thus, while the motor drives the fan to operate, the negative pressure environment generated by the fan operation allows air to circulate within the heat dissipation duct, thereby effectively dissipating heat from the motor and extending its service life.

[0024] In a second aspect, an embodiment of the present application provides a HVAC system, comprising the above-mentioned indoor unit and outdoor unit, wherein the outdoor unit and the indoor unit form a circulation flow path. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 is a schematic structural diagram of an indoor unit according to an embodiment of the present application;

[0027] FIG2 is a first exploded view of an indoor unit according to one embodiment of the present application;

[0028] FIG3 is a second exploded view of the indoor unit according to one embodiment of the present application;

[0029] FIG4 is a side view of an indoor unit according to one embodiment of the present application;

[0030] FIG5 is a cross-sectional view of the section AA in FIG4 ;

[0031] FIG6 is a cross-sectional view at BB in FIG4 ;

[0032] FIG7 is a cross-sectional view of CC in FIG4;

[0033] FIG8 is a schematic structural diagram of an indoor unit according to an embodiment of the present application with the top plate and part of the side panels removed.

[0034] Figure numerals: 1, indoor unit; 100, casing; 110, volute; 120, water tray; 130, outer shell; 131, top plate; 132, side panel; 1321, first side panel; 1322, second side panel; 140, heat exchange duct; 141, return air outlet; 142, air outlet; 150, heat dissipation duct; 150b, inner wall; 151, air inlet; 152, air outlet; 153, air inlet area; 154, air outlet area; 160, return air area; 200, wind wheel; 300, motor; 400, heat exchanger; 500, motor mounting bracket; 500a, outer wall; 510, motor mounting seat; 520, motor cover; 530, installation space; 540, heat dissipation hole; 511, first baffle; 512, second baffle; 600, side panel. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0036] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0037] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0039] The present application provides an indoor unit 1 and a heating and ventilation system. The heating and ventilation system includes an indoor unit 1 and an outdoor unit. The indoor unit 1 and the outdoor unit are connected via modules such as a circuit module and a piping module to operate together to regulate the indoor environment. FIG1 and FIG3 illustrate the indoor unit 1. The indoor unit 1 includes a housing 100, a wind wheel 200, a motor 300, and a heat exchanger 400.

[0040] In the following description, based on the coordinate system in FIG. 1 , a vertical direction ZZ, a length direction YY, and a width direction XX are defined. The vertical direction ZZ, the length direction YY, and the width direction XX are arranged perpendicular to each other.

[0041] Referring to Figures 4 to 6 , a heat exchange duct 140 and a heat dissipation duct 150 are formed within the housing 100. A return air port 141 and an air outlet 142 are provided, communicating with the heat exchange duct 140, as well as an air inlet 151 and an air outlet 152 are provided, communicating with the heat dissipation duct 150. The impeller 200 and the heat exchanger 400 are disposed within the heat exchange duct 140, with the heat exchanger 400 located between the impeller 200 and the return air port 141. A motor 300 is disposed within the heat dissipation duct 150 and is configured to drive the impeller 200.

[0042] In some configurations, as shown in FIG7 , the heat exchange duct 140 and the heat dissipation duct 150 extend in the length direction YY and are arranged in parallel in the width direction XX. An air inlet 151 connects the heat dissipation duct 150 to the outside world, and an air outlet 152 connects the heat dissipation duct 150 to the heat exchange duct 140.

[0043] During operation, the impeller 200 drives the outside airflow from the return air inlet 141 into the heat exchange duct 140. After passing through the heat exchanger 400, the airflow is adjusted in temperature, humidity, and other properties, and then flows into the indoor environment through the air outlet 142, thereby achieving the purpose of regulating the air in the space. During the operation of the indoor unit 1, the outdoor unit compresses the refrigerant through the compressor and transports the refrigerant through the circulation flow path to the heat exchanger 400 of the indoor unit 1. The impeller 200 drives the airflow from the return air inlet 141 into the heat exchange duct 140, and exchanges heat with the heat exchanger 400. After heat exchange with the air in the heat exchange chamber, the refrigerant flows out of the indoor unit 1 and returns to the compressor of the outdoor unit, where it is compressed again to the predetermined temperature and pressure, thus starting a new round of refrigerant circulation.

[0044] It is understandable that when the wind wheel 200 continuously draws outside air from the return air port 141 into the heat exchange duct 140, a certain negative pressure effect will be generated. The air outlet 152 connects the heat dissipation duct 150 and the heat exchange duct 140. In this way, part of the air enters the heat dissipation duct 150 from the air inlet 151 under the drive of the negative pressure environment, and flows to the air outlet 152, and then enters the heat exchange duct 140. In the present application, the motor 300 is set in the heat dissipation duct 150. In the process of air flow through the motor 300, the heat generated by the motor 300 can be taken away, thereby effectively dissipating the heat of the motor 300 and improving the service life of the motor 300. The embodiment of the present application sets the heat dissipation duct 150 and connects the air outlet 152 of the heat dissipation duct 150 with the heat exchange duct 140, thereby increasing the air flow speed in the heat dissipation duct 150, improving the heat transfer efficiency, and effectively dissipating the heat generated by the motor 300, thereby avoiding the impact of overheating on the performance and life of the motor 300.

[0045] Referring to Figures 2 and 3, the housing 100 includes a volute 110, a water collecting pan 120, and an outer shell 130. In some structural forms, the outer shell 130 includes a top plate 131 and side panels 132 arranged around the periphery of the top plate 131, and the side panels 132 extend in the up-down direction YY, so that an installation cavity is formed inside the outer shell 130. The volute 110 and the water collecting pan 120 are installed in the installation cavity inside the outer shell 130. The volute 110 includes a volute body, and a side panel 600 connected to the volute body and located on one side of the axial direction of the wind wheel 200. The wind wheel 200 is installed on the volute body. The side panels 600 of the volute 110 and the water collecting pan 120 are respectively abutted against opposite sides of the side panels of the heat exchanger 400. The impeller 200 is mounted on the volute 110 to enhance the impeller 200 effect, causing the air to be turbulent and rotated when flowing through the volute 110, thereby increasing the air flow rate and pressure, and improving the heat exchange efficiency of the heat exchanger 400. Generally, the interior of the volute 110 has a spiral surface that can change the direction and speed of the gas movement, thereby allowing the air after heat exchange with the heat exchanger 400 to be discharged through the corresponding outlet 142.

[0046] Furthermore, the heat dissipation duct 150 of the embodiment of the present application is formed by the outer shell 130, the side panels 600 of the volute 110, the side panels of the heat exchanger 400, and the water collection tray 120. It is understood that because the volute 110 is provided with a spiral surface inside, the outer shell 130 has a curved structure. Therefore, when the volute 110 is installed in the outer shell 130, a cavity is formed between the volute 110 and the outer shell 130. The water collection tray 120 is located at the bottom of the entire structure and cooperates with the volute 110 and the outer shell 130 to form the heat dissipation duct 150. In this way, based on the structure of the original indoor unit 1, the embodiment of the present application only needs to process the air inlet 151 on the outer shell 130. The heat dissipation duct 150 can be formed in the portion of the area enclosed by the outer shell 130, the volute 110, and the water collection tray 120. There is no need to process other components or install other equipment to dissipate heat from the motor 300. This reduces both production costs and complexity in the production process.

[0047] In some embodiments, the air outlet 152 can connect the cooling duct 150 and the return air outlet 141. Specifically, when the heat exchanger 400 abuts against the side of the side panel 600 away from the volute body, a gap exists between the side panel 600 and the outer casing 130. Therefore, within the indoor unit 1, the air outlet 152 can be positioned in front of the air inlet side of the heat exchanger 400 and between the cooling duct 150. This arrangement shortens the airflow path of the cooling duct 150, thereby increasing the negative pressure generated by the impeller 200 on the cooling duct 150. Of course, the side panel 600 can also abut against the inner wall of the outer casing 130. Providing a certain gap between the water tray 120 and the outer casing 130 can also form the aforementioned air outlet 152. In another embodiment, the side panel 600 and the water tray 120 can be simultaneously abutted against the inner wall of the outer casing 130, and the air outlet 152 can be positioned on the outer casing 130. The present application does not limit the specific form of the air outlet 152.

[0048] Furthermore, the heat exchange air duct 140 includes a return air zone 160 connecting the air inlet side of the heat exchanger 400 and the return air port 141, and the air outlet 152 connects to the return air zone 160. With this arrangement, the airflow entering the air outlet 152 does not directly hit the heat exchanger 400. Instead, it meets the airflow entering the return air port 141 in the return air zone 160 and flows in the same direction before flowing through the heat exchanger 400 together. This optimizes the airflow distribution. At the same time, by providing the return air zone 160, the return air volume of the indoor unit 1 can be increased, thereby improving the air circulation efficiency.

[0049] To improve the purity of air entering the heat exchange duct 140, in some embodiments, the indoor unit 1 further includes a filter device (not shown). The filter device can be in the form of a filter mesh. The filter device is connected to the housing 100 and located at the return air inlet 141. External airflow is first filtered by the filter device before flowing into the return air zone 160. In other words, the filter device of the present application is located upstream of a portion of the return air zone 160 in the direction of airflow. Furthermore, a gap exists between the air outlet 152 and the filter device in the direction from the return air inlet 141 to the air inlet side of the heat exchanger 400. This allows airflow from the heat exchange duct 150 to enter the heat exchange duct 140 directly without passing through the filter device. This reduces airflow resistance in the heat exchange duct 150 and enhances the negative pressure effect. Furthermore, the gap between the air outlet 152 and the filter device prevents airflow from the heat exchange duct 150 from acting on the filter device, facilitating airflow within the heat exchange duct 150.

[0050] To minimize the negative pressure generated by the operation of the impeller 200 on the heat dissipation duct 150, the air outlet 152 can be connected to the space between the impeller 200 and the outlet side of the heat exchanger 400 in the heat exchange duct 140. This allows the airflow in the heat dissipation duct 150 to be drawn directly into the impeller 200 without passing through the heat exchanger 400, reducing the resistance to airflow from the heat dissipation duct 150 into the heat exchange duct 140 and effectively improving the heat dissipation efficiency of the heat dissipation duct 150.

[0051] In some structural forms, the air outlet 152 can be provided on the side panel 600, and the air outlet 152 is located between the air inlet side of the impeller 200 and the air outlet side of the heat exchanger 400. The motor 300 is located between the air inlet 151 and the air outlet. In this way, the airflow in the heat dissipation duct 150 can be directly drawn into the impeller 200 through the air outlet 152 without passing through the heat exchanger 400, thereby reducing the resistance of the airflow from the heat dissipation duct 150 into the heat exchange duct 140 and effectively improving the heat dissipation efficiency of the heat dissipation duct 150.

[0052] In the embodiment of the present application, the opening of the air inlet 151 is arranged horizontally, that is, the air inlet 151 is arranged on the side panel 132. It will be understood that the indoor unit 1 is generally mounted on a ceiling. If the air inlet 151 is arranged on the top panel 131, the air inlet 151 is arranged opposite the ceiling, which tends to increase the resistance of air entering the heat dissipation duct 150 from the air inlet 151. However, arranging the air inlet 151 on the side panel 132 can avoid resistance with the ceiling, allowing air to flow more smoothly into the heat dissipation duct 150 and improving the heat dissipation efficiency of the heat dissipation duct 150. Furthermore, compared to arranging the air inlet 151 on the top panel 131, arranging the air inlet 151 on the side panel 132 can also reduce the risk of dust or foreign matter entering the heat dissipation duct 150.

[0053] Please continue to refer to Figures 2 and 3. In some structural forms, the side panels 132 include first side panels 1321 spaced apart in the length direction YY and second side panels 1322 spaced apart in the width direction XX. The volute 110, the motor 300, and the second side panels 1322 are spaced apart in the width direction XX, and the first side panel 1321 is located between the two second side panels 1322. The air inlet 151 is provided on the first side panel 1321 near the motor 300. With this arrangement, the air inlet 151 is connected to the heat dissipation duct 150 in the length direction YY, so that air can flow through various surfaces of the motor 300 from the air inlet 151, which makes the cooling efficiency of the motor 300 higher. If the air inlet 151 is set on the second side plate 1322 close to the motor 300, the flow direction of the air inlet 151 and the flow direction of the heat dissipation duct 150 are perpendicular to each other. When the external air enters the heat dissipation duct 150 from the air inlet 151, a turning path will appear, which increases the resistance to air flow.

[0054] In order to prevent large particles or small animals such as mice and insects from entering the heat dissipation duct 150, to avoid damage to the indoor unit 1, or to pollute the air conditioned by the indoor unit 1. An air inlet grille (not shown in the figure) is provided at the air inlet 151. The aperture of the air inlet grille can be set according to user needs, and this application does not impose any restrictions on this. Of course, in some embodiments, it is also possible to prevent large particles or small animals from entering the heat dissipation duct 150 by setting the aperture of the air inlet 151 to be relatively small. In addition, in order to ensure the air intake rate of the air inlet 151, a plurality of air inlets 151 can be set at intervals.

[0055] To facilitate installation of the motor 300 within the heat dissipation duct 150, see FIG3 . The embodiment of the present application further includes a motor mounting bracket 500, wherein the motor mounting bracket 500 is connected to the volute 110 and is located within the heat dissipation duct 150. In some structural forms, the motor mounting bracket 500 is connected to the volute 110. In this way, after the motor 300 is installed on the motor mounting bracket 500, a transmission connection between the motor 300 and the wind wheel 200 can be facilitated. Of course, in other embodiments, the motor mounting bracket 500 can also be connected to the housing 130, and this application is not limited to this.

[0056] In some embodiments of the present application, the motor mounting frame 500 is provided with an installation space 530, and the motor 300 is installed in the installation space 530. Among them, the motor mounting frame 500 is provided with a plurality of heat dissipation holes 540 arranged at intervals and connecting the installation space 530 and the heat dissipation duct 150. With such a configuration, during operation, under the action of the air pressure in the heat exchange duct 140, the air flow in the heat dissipation duct 150 will flow through the air inlet 151, the heat dissipation holes 540, the installation space 530, the heat dissipation holes 540 in sequence, and then enter the heat exchange duct 140, thereby effectively improving the heat dissipation efficiency of the motor 300. In the embodiment of the present application, through the heat dissipation holes 540, hot air can smoothly enter the heat dissipation duct 150 from the installation space 530. This ensures that the fresh air in the heat dissipation duct 150 can contact the surface of the motor 300, effectively taking away the heat generated by the motor 300, and preventing hot air from being trapped in the installation space 530, causing heat accumulation.

[0057] The outer wall surface 500a of the motor mounting bracket 500 abuts the inner wall surface 150b of the heat dissipation duct 150, thereby dividing the heat dissipation duct 150 into an air inlet area 153 connected to the air inlet 151 and an air outlet area 154 connected to the heat exchange duct 140. Referring to Figures 2, 3, and 8, the motor mounting bracket 500 includes a first baffle 511 and a second baffle 512. In the height direction ZZ, the outer wall surface 500a of the first baffle 511 abuts the top plate 131. In the width direction XX, the outer wall surfaces 500a of the first baffle 511 on opposite sides abut the side surfaces of the volute 110 and the side surfaces of the side panels 132, respectively. The outer wall surface 500a of the second baffle 512 abuts the side panels 132. It can be understood that the side surfaces of the volute 110, the top plate 131, and the side panels 132 each form a portion of the inner wall surface 150b of the heat dissipation duct 150.

[0058] Specifically, by abutting the outer wall 500a of the motor mounting frame 500 against the inner wall 150b of the heat dissipation duct 150, the airtightness of the heat dissipation duct 150 can be improved. Furthermore, the heat dissipation duct 150 can be divided into an air inlet area 153 and an air outlet area 154. Some heat dissipation holes 540 connect the air inlet area 153 with the installation space 530, while others connect the installation space 530 with the air outlet area 154. In some structural forms, the air inlet area 153 and the air outlet area 154 can be spaced apart in the vertical direction. In this arrangement, the air inlet area 153 and the air outlet area 154 are connected only through the heat dissipation holes 540. During operation, under the influence of the air pressure in the heat exchange duct 140, the airflow within the heat dissipation duct 150 flows sequentially through the air inlet 151, the air inlet area 153, the installation space 530, the air outlet area 154, and then enters the heat exchange duct 140, thereby effectively improving the heat dissipation efficiency of the motor 300.

[0059] It should be noted that the first baffle 511 and the second baffle 512 are both rigid plates. When they are placed against the top plate 131 and the side panels 132, which are also rigid plates, gaps are likely to form, making it difficult to effectively ensure the airtightness of the heat dissipation duct 140. In some embodiments, a sealant (not shown in the figure) can be provided between the first baffle 511 and the top plate 131 and the side panels 132. The sealant can fill the gap between the first baffle 511 and the top plate 131 and the side panels 132. The sealant can be in the form of a silicone pad, a sealing ring, etc., and the specific form of the sealant is not limited in this application. Similarly, a sealant can also be provided between the second baffle 512 and the side panels 132. In this case, the sealant can also form part of the inner wall surface 150b of the heat dissipation duct 150.

[0060] It is understandable that the outer wall surface 500 a of the motor mounting bracket 500 and the inner wall surface 150 b of the heat dissipation duct 150 may directly abut against each other or may indirectly abut against each other via a sealing member.

[0061] To facilitate installation of the motor 300 on the motor mounting bracket 500, the motor mounting bracket 500 includes a motor mounting base 510 and a motor cover 520. The motor cover 520 is detachably connected to the motor mounting base 510 and encloses an installation space 530 configured to mount the motor 300. The specific connection method between the motor cover 520 and the motor 300 is not limited herein. The motor cover 520 can be connected to the motor mounting base 510 by one or more of the following methods, such as screw connection or snap connection, and the designer can make a reasonable choice based on actual needs. The motor mounting base 510 and the motor cover 520 cooperate to fix the motor 300.

[0062] Furthermore, the motor mounting base 510 and the volute 110 are integrally formed components. Specifically, the motor mounting base 510 and the volute 110 can be integrally formed by injection molding, or can be integrally formed by hot pressing or stamping. This can improve the stability of the connection between the motor mounting base 510 and the volute 110 and improve assembly efficiency.

[0063] In some embodiments, the motor mounting base 510 and the motor cover 520 are both provided with the aforementioned heat dissipation holes 540. It is understood that the size and position of the heat dissipation holes 540 can be designed and adjusted according to actual needs. By properly setting the number, size, and position of the heat dissipation holes 540, the heat dissipation effect can be flexibly adjusted according to the power and heat dissipation requirements of the motor 300, and this application does not limit this.

[0064] 5 , the motor mount 510 includes a mount body, wherein the first baffle 511 and the second baffle 512 described above can be connected to the motor mount 510. In this way, the first baffle 511, the second baffle 512, the mount body, and the volute 110 can be an integrated component. In other embodiments, the first baffle 511 and the second baffle 512 can be connected to the motor cover 520. The first baffle 511, the second baffle 512, and the motor cover 520 can be an integrated component.

[0065] To further improve the heat dissipation efficiency of the motor 300, heat dissipating silicone (not shown) can be installed at the connection between the outer surface of the motor 300 and the motor mounting frame 500. The heat dissipating silicone increases the contact area between the motor 300 and the motor mounting frame 500, thereby effectively conducting the heat generated by the motor 300 and dissipating it to the motor mounting frame 500. The air flowing through the heat dissipation duct 150 cools the surface of the motor mounting frame 500, thereby preventing overheating of the motor 300 and extending the service life of the motor 300.

[0066] To further improve the heat dissipation efficiency of motor 300, a finned heat sink (not shown) can be provided on the outer surface of motor mount 500. This finned heat sink has numerous protruding fins, which increase the contact area between motor mount 500 and the air within heat dissipation duct 150. This allows heat generated by motor mount 500 to be transferred to the fins and quickly dissipated to the surrounding air. Furthermore, the protruding fins of the finned heat sink create numerous fine air ducts, creating turbulent air flow and further enhancing the heat dissipation effect.

[0067] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. An indoor unit, wherein: include: The housing has a heat exchange air duct and a heat dissipation air duct formed therein, and is provided with an air return port and an air outlet communicating with the heat exchange air duct, and an air inlet and an air outlet communicating with the heat dissipation air duct; a wind wheel, arranged in the heat exchange air duct; and A motor is arranged in the heat dissipation duct and is drivingly connected to the wind wheel; The air inlet is connected to the heat dissipation duct and the outside, and the air outlet is connected to the heat dissipation duct and the heat exchange duct.

2. The indoor unit according to claim 1, wherein: It also includes a heat exchanger arranged in the heat exchange air duct, and the heat exchanger is located between the wind wheel and the return air port; The air outlet is communicated with a cavity of the heat exchange air duct located between the wind wheel and the air outlet side of the heat exchanger.

3. The indoor unit according to claim 1, wherein: It also includes a heat exchanger arranged in the heat exchange air duct, and the heat exchanger is located between the wind wheel and the return air port; The heat exchange air duct includes a return air area connected to the air inlet side of the heat exchanger and the return air port, and the air outlet is connected to the return air area.

4. The indoor unit according to claim 3, wherein: It also includes a filter device, which is connected to the shell and located at the return air inlet. In the direction from the return air inlet to the air inlet side of the heat exchanger, there is a gap between the air outlet and the filter device.

5. The indoor unit according to any one of claims 2 to 4, wherein: The heat dissipation duct and the heat exchange duct are arranged in parallel.

6. The indoor unit according to claim 5, wherein: The housing comprises a volute, a water receiving tray and an outer shell, the volute and the water receiving tray are arranged in the outer shell, and the wind wheel is installed in the volute; The opposite sides of the heat exchanger abut against the volute and the water receiving pan respectively, and the outer shell, the volute, the heat exchanger and the water receiving pan cooperate to form the heat dissipation duct; The shell is provided with the air inlet, and the air inlet is arranged in a horizontal direction.

7. The indoor unit according to claim 6, wherein: The air inlet is covered with an air inlet grille.

8. The indoor unit according to claim 6, wherein: Also included is a motor mounting bracket connected to the volute, the motor mounting bracket being located in the heat dissipation duct and having an installation space configured to install the motor; Wherein, the motor mounting frame is provided with a plurality of heat dissipation holes which are arranged at intervals and connect the mounting space and the heat dissipation duct.

9. The indoor unit according to claim 8, wherein: The outer wall surface of the motor mounting frame abuts against the inner wall surface of the heat dissipation duct to separate the heat dissipation duct into an air inlet area communicating with the air inlet and an air outlet area communicating with the heat exchange duct; Part of the heat dissipation holes is connected to the air inlet area and the installation space, and part of the heat dissipation holes is connected to the installation space and the air outlet area.

10. The indoor unit according to claim 8 or 9, wherein: The motor mounting bracket includes a motor mounting seat and a motor cover detachably connected to the motor mounting seat, wherein the motor mounting seat and the motor cover enclose the mounting space; Wherein, the motor mounting seat and the volute are integrally formed components.

11. A heating and ventilation equipment, wherein: The invention comprises the indoor unit and the outdoor unit according to any one of claims 1 to 10, wherein the outdoor unit and the indoor unit form a circulation flow path.

Images