Heater assembly, heating apparatus, and ducted air conditioner

Abstract

The application provides a heater assembly, a heating device and a ducted air conditioner. The heater assembly is applied to the heating device and comprises a heating body and a frame. The heating body is used for releasing heat. The frame comprises two opposite spaced side plates. A space between the two side plates forms an air passing channel. The heating body is installed in the air passing channel and connected with the frame. The frame is further provided with rotating connection structures at two ends. The rotating connection structures are used for rotatingly installing the frame in the heating device. Each side plate is further provided in a direction away from the other side plate. The heater assembly provided by the application can solve the technical problem of low heat exchange efficiency of the electric heater in the existing ducted air conditioner.

Description

Technical Field

[0001] This application relates to the field of heater technology, and in particular to a heater assembly, heating device, and duct unit. Background Technology

[0002] To improve heat exchange efficiency, existing ducted air conditioners also have an electric heater installed between the evaporator and the air outlet. The auxiliary heating provided by the electric heater effectively improves the heat exchange efficiency of the ducted air conditioner. However, due to factors such as wind speed and duct structure, the airflow direction when it reaches the electric heater is often variable rather than directional. In current technology, the electric heater is fixedly installed inside the ducted air conditioner and cannot be adjusted according to changing wind direction, resulting in higher air resistance and lower heat exchange efficiency. Summary of the Invention

[0003] This application provides a heater assembly to address the technical problem of low heat exchange efficiency of electric heaters in existing duct air conditioners.

[0004] To achieve the above objectives, the heater assembly proposed in this application is used in a heating device and includes a heating body and a frame. The heating body is used to release heat, and the frame includes two side plates spaced apart from each other. The space between the two side plates forms an air passage. The heating body is installed in the air passage and connected to the frame. The frame is also provided with a rotatable connection structure at both ends. The rotatable connection structure is used to rotatably install the frame in the heating device. Each side plate is also inclined away from the other side plate.

[0005] Optionally, in one embodiment, the heating body includes a heating plate that extends along the axial direction of the rotating connection structure, and the two side plates are symmetrically arranged about the heating plate.

[0006] Optionally, in one embodiment, the heating body further includes a plurality of heat sinks, the side plates are made of thermally conductive material, and the plurality of heat sinks are connected between the heating plate and each of the side plates.

[0007] Optionally, in one embodiment, the side plate and the heat sink are made of the same thermally conductive material; and / or, the plurality of heat sinks are arranged in a corrugated pattern.

[0008] Optionally, in one embodiment, the included angle formed between the two side plates is not less than 60° and not greater than 130°.

[0009] Optionally, in one embodiment, the heater assembly further includes a mounting bracket for fixed connection with the heating device; the mounting bracket is provided with a connection hole, and the rotatable connection structure is a connecting shaft, which is rotatably installed in the connection hole.

[0010] Optionally, in one embodiment, a limiting block is protruding from a portion of the outer peripheral surface of the connecting shaft, and a limiting groove is recessed from a portion of the inner peripheral surface of the connecting hole; the limiting block extends from the connecting shaft into the limiting groove and can rotate within the limiting groove under the drive of the connecting shaft.

[0011] Optionally, in one embodiment, the frame further includes two supports spaced apart from each other, the two side plates are connected between the two supports, and each support is provided with the rotatable connection structure.

[0012] This application also proposes a heating device, which includes the above-described heater assembly.

[0013] This application also proposes a duct air conditioner, which includes a body and the aforementioned heater assembly. The body is provided with an air outlet, and the heater assembly is rotatably installed in the body through the rotating connection structure and located at the air outlet.

[0014] Optionally, in one embodiment, each of the side panels has opposing inner and outer surfaces, with the air passage formed between the two inner surfaces, and the outer surface being the windward side.

[0015] When the heater assembly provided in this application is applied to a heating device (such as a ducted air conditioner with heating function), it can be rotatably installed in the air duct of the heating device through its rotating connection structure. Simultaneously, because each side plate on the frame is inclined away from the other side plate, when air blows onto the heater assembly, the air acts on the two side plates, causing the entire heat exchanger to rotate. This allows the heater assembly to automatically adjust its installation angle until the airflow force on the two side plates is equal, thus completing the installation angle adjustment. It can be understood that when the airflow force on the two side plates is equal, it indicates that the air passage between the two side plates extends in the direction of the airflow, minimizing the resistance of the airflow passing through the heater and maximizing the contact area with the heating element, thereby improving heat exchange efficiency and effectively solving the technical problem of low heat exchange efficiency of electric heaters in existing ducted air conditioners. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the heater assembly of this application;

[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This is a schematic diagram of a mounting bracket embodiment in the heater assembly of this application;

[0020] Figure 4 This is a schematic diagram of another embodiment of the heater assembly of this application;

[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 This is a structural diagram and an airflow direction diagram of an embodiment of the ducted air handling unit of this application;

[0023] Figure 7 for Figure 6 Structural cross-sectional view and wind direction diagram of a central duct air conditioning unit;

[0024] Figure 8 for Figure 7 A magnified view of a section at point C.

[0025] Explanation of icon numbers:

[0026] label name label name label name 10 heater assembly 312 Air outlet side 51 Connection hole 20 Heating unit 32 Rotary connection structure 511 Limiting groove 21 heating plate 321 Connecting shaft 100 Ductless air conditioner 22 heat sink 322 Limit block 101 body 30 frame 33 support 102 air vent 31 Side panel 40 air passage 103 Evaporator 311 Air intake side 50 Mounting rack 104 Centrifugal fan

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] This application provides a heater assembly to address the problem of low heat exchange efficiency in existing electric heaters used in duct air conditioners. The following description is in conjunction with the accompanying drawings.

[0030] In the embodiments of this application, such as Figure 1 and Figure 2As shown, the heater assembly 10 is used in a heating device and includes a heating body 20 and a frame 30. The heating device can be an air conditioner, ducted air conditioner, heater, hair dryer, etc., and the specific application scenario can be selected according to needs. When the heater assembly 10 is installed in the heating device, it can be installed at the air inlet, air outlet, or in the air duct between the air inlet and air outlet. For example, taking a ducted air conditioner 100 with heating function as an example, ... Figure 6 As shown, the heater assembly 10 can be installed between the evaporator 103 and the air outlet 102 to reheat the air that has been heated by the evaporator 103.

[0031] The heating element 20 is used to release heat. Specifically, in this embodiment, as follows: Figure 2 As shown, the heating body 20 includes a heating plate 21 and heat sinks 22. A ceramic body is housed within the heating plate 21 and electrically connected to a power source via wires, allowing the ceramic body to release heat when energized. The ceramic body is encased in a shell with good thermal conductivity, such as an aluminum or copper shell. Multiple heat sinks 22 are provided and connected to the heating plate 21 by bonding, welding, or other methods. The heat sinks 22 increase the heating area of ​​the heater assembly 10 and improve heating efficiency. Of course, the heating body 20 can be designed with other structural forms as needed, such as a heating pipe structure, a finned structure, etc., and specific designs can be selected based on existing technology.

[0032] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 8 The frame 30 includes two relatively spaced side plates 31, with the space between the two side plates 31 forming an air passage 40. The heating element 20 is installed within the air passage 40 and connected to the frame 30. Specifically, the size, material, and forming method of the frame 30 are not limited here. For example, the size of the frame 30 can be designed according to the size of the heating device, the size of the air duct, and the size of the air outlet 102. Regarding the forming method of the frame 30, in this embodiment, the frame 30 also mainly includes two supports 33 and two side plates 31. The two supports 33 are relatively spaced, and the two side plates 31 are connected between the two supports 33 and are relatively spaced, thus the two supports 33 and the two side plates 31 together enclose the air passage 40. The heating element 20 is installed within the air passage 40, so that after air enters the air passage 40, it can exchange heat with the heating element 20, thereby heating the air. When installing the heating body 20, the two ends of the heating body 20 can be connected to the two supports 33 respectively, or the two sides of the heating body 20 can be connected to the two side plates 31 respectively, or the heating body 20 can be connected to both supports 33 and two side plates 31 at the same time, thereby improving the installation stability.

[0033] In this embodiment, in order to solve the problem of low heating efficiency of existing heaters, such as Figure 2 As shown, the frame 30 is provided with rotatable connection structures 32 at both ends. These rotatable connection structures 32 allow the frame 30 to be rotatably installed within the heating device. Each side plate 31 is also inclined away from the other side plate 31. The rotatable connection structure 32 can be a connecting shaft 321 or a connecting hole 51; the specific structural form can be designed according to actual conditions, as long as it enables the frame 30 to be rotatably installed within the heating device. It should be noted that the rotatable connection structure 32 can be directly rotatably connected to the heating device to be used, or it can be indirectly rotatably connected to the heating device through an intermediate connector (such as the mounting bracket 50 in a later embodiment). The specific connection method can be selected according to actual needs.

[0034] Additionally, please combine Figure 2 and Figure 8 Taking an example where each side panel 31 has an air inlet side 311 and an air outlet side 312 in the air inlet direction, when each side panel 31 is tilted away from the other side panel 31, the distance between the two air outlet sides 312 can be greater than the distance between the two air inlet sides 311, or the distance between the two air outlet sides 312 can be less than the distance between the two air inlet sides 311. In this way, each side panel 31 can be tilted away from the other side panel 31. At this time, the air passage 40 formed by the interval between the two side panels 31 has a structure with a gradually increasing or decreasing width.

[0035] When the heater assembly 10 provided in this application is applied to a heating device (such as a ducted air conditioner 100 with heating function), it can be rotatably installed at the air outlet or in the air duct of the heating device through its rotating connection structure 32, and the air passage 40 is connected to the air duct in the heating device. Simultaneously, because each side plate 31 on the frame 30 is inclined away from the other side plate 31, when air blows onto the heater assembly 10, the air can act on the two side plates 31, causing the entire heat exchanger to rotate. This allows the heater assembly 10 to automatically adjust its installation angle until the air force on the two side plates 31 is equal, thus completing the installation angle adjustment. It can be understood that when the air force on the two side plates 31 is equal, it means that the air passage 40 between the two side plates 31 extends along the wind direction, minimizing the resistance of the air passing through the heater and maximizing the contact area with the heating body 20, thereby improving the heat exchange efficiency and effectively solving the technical problem of low heat exchange efficiency of the electric heater in the existing ducted air conditioner 100.

[0036] Optionally, in one embodiment, such as Figure 8As shown, the heating body 20 includes a heating plate 21, which extends along the axial direction of the rotating connection structure 32. The two side plates 31 are symmetrically arranged about the heating plate 21. Specifically, in this embodiment, the heating plate 21 is approximately square in shape, and its size is adapted to the length and depth of the air passage 40, thus dividing the air passage 40 in two. When the heater assembly 10 is rotatably installed into the heating device, the heating plate 21 passes through the rotation axis of the rotating connection structure 32 and extends along the rotation axis of the cover. Simultaneously, the two side plates 31 are symmetrically arranged about the heating plate 21, meaning that the distance between each side plate 31 and the heating plate 21, as well as the angle of inclination relative to the heating plate 21, are equal. This design allows the two side plates 31 to more easily reach a state of equal force, and when the two side plates 31 are under equal force, the heating plate 21 extends parallel to the wind direction, thereby maximizing the contact area with the air, further reducing wind resistance and improving heat exchange efficiency.

[0037] Optionally, in one embodiment, such as Figure 2 As shown, the heating body 20 also includes multiple heat sinks 22. The side plates 31 are made of thermally conductive material, and the multiple heat sinks 22 are connected between the heating plate 21 and each of the side plates 31. The heat sinks 22 can be made of materials with high thermal conductivity, such as aluminum or copper sheets. The size and shape of the heat sinks 22 are not limited. In this embodiment, each heat sink 22 extends from the air inlet side 311 of the side plate 31 to the air outlet side 312, thus increasing the contact area with air and improving heat exchange efficiency. To further improve heat exchange efficiency, this embodiment also makes each side plate 31 made of thermally conductive material and connected to the heat sinks 22. This allows the two side plates 31 to exchange heat with the air passing through them, increasing the heat exchange area of ​​the entire heater assembly 10 and effectively improving heat exchange efficiency.

[0038] Optionally, in one embodiment, the side plate 31 and the heat sink 22 are made of the same thermally conductive material, such as aluminum. This helps to ensure the thermal conductivity between the side plate 31 and the heat sink 22, thereby ensuring that the air can exchange enough heat in a timely manner and improving the heat exchange efficiency.

[0039] And / or, in another embodiment, the plurality of heat sinks 22 are arranged in a corrugated pattern, which not only increases the arrangement density of the heat sinks 22 and the heat exchange area with the air, but also does not cause the wind resistance to become very large.

[0040] Optionally, in one embodiment, the included angle formed between the two side plates 31 is not less than 60° and not more than 130°, that is, the included angle formed between each side plate 31 and the heating plate 21 is not less than 30° and not more than 65°. It can be understood that if the included angle between the two side plates 31 is less than 60°, the area on which air acts on the side plate 31 will be smaller, resulting in a smaller force, which may prevent the frame 30 from rotating. If the included angle between the two side plates 31 is greater than 130°, the area of ​​air blocked by the side plates 31 will be larger, leading to greater wind resistance and affecting heat exchange efficiency. Therefore, when the included angle between the two side plates 31 is not less than 60° and not more than 130°, it ensures that the wind force can cause the frame 30 to rotate without causing excessive wind resistance.

[0041] Optionally, in one embodiment, please combine Figures 2 to 5 The heater assembly 10 further includes a mounting bracket 50 for fixed connection with the heating device. The mounting bracket 50 has a connecting hole 51, and the rotating connection structure 32 is a connecting shaft 321, which is rotatably installed in the connecting hole 51. Specifically, the structure, size, material, etc., of the mounting bracket 50 are not limited and can be flexibly designed according to the installation space in the heating device to be used, as long as it can be fixedly connected to the heating device. In this embodiment, the mounting bracket 50 has a connecting hole 51, and the rotating connection structure 32 is a connecting shaft 321. Therefore, when installing the heater assembly 10 into the heating device, the connecting shaft 321 can be rotatably installed in the connecting hole 51 first, so that the frame 30 is rotatably installed between the two mounting brackets 50; then the two mounting brackets 50 are fixedly connected to the heating device, thus realizing the rotatable installation of the frame 30 in the heating device.

[0042] It is understood that in this embodiment, by setting up the mounting bracket 50, the frame 30 is rotatably mounted on the mounting bracket 50 through the rotating connection structure 32, and then installed into the heating device through the mounting bracket 50. This makes it easier to improve the existing heating device, without adding corresponding shafts or holes to the heating device, and only needs to be directly connected to the mounting bracket 50.

[0043] There are various ways to connect the mounting bracket 50 to the heating device, such as screwing, welding, or bonding. The choice can be made based on convenience during implementation.

[0044] Optionally, in one embodiment, it is still combined with Figures 2 to 5A limiting block 322 protrudes from the outer circumferential surface of the connecting shaft 321, and a limiting groove 511 is recessed from the inner circumferential surface of the connecting hole 51. The limiting block 322 extends from the connecting shaft 321 into the limiting groove 511, and the width of the limiting block 322 is smaller than the width of the limiting groove 511 in the rotation direction of the connecting shaft 321, thus allowing it to rotate within the limiting groove 511 under the drive of the connecting shaft 321. The size and shape of the limiting block 322 and the limiting groove 511 are not limited. For example, the size of the limiting block 322 and the limiting groove 511 can be designed according to the required rotation angle range of the frame 30. For instance, when the rotation angle range of the frame 30 needs to be limited to between 5° and 10°, the positions of the limiting blocks 322 abutting against the two opposite inner walls of the limiting groove 511 can correspond to angles of 5° and 10° respectively. When it is necessary to increase the rotation angle range, the width of the limiting block 322 can be reduced.

[0045] However, regarding the shape of the limiting block 322 and the limiting groove 511, the limiting block 322 can be a square block, a cylindrical block or other shapes of blocks, and the limiting groove 511 can be a square groove, an arc groove or other shapes of grooves. For example, in this embodiment, both the limiting block 322 and the limiting groove 511 are dovetail-shaped structures.

[0046] It is understood that by setting a limiting block 322 on the connecting shaft 321 and a limiting groove 511 in the connecting hole 51, the limiting block 322 extends into the limiting groove 511, and thus the limiting block 322 can restrict the rotation angle range of the connecting shaft 321, thereby limiting the rotation angle range of the entire frame 30, and preventing the heater assembly 10 from shaking violently.

[0047] Optionally, in one embodiment, please combine Figure 1 and Figure 2 The frame 30 also includes two supports 33 spaced apart from each other. The two side plates 31 are connected between the two supports 33, and each support 33 is provided with the rotating connection structure 32. In this embodiment, the support 33 is generally a block structure, and the two side plates 31 and the heating body 20 are all connected to the support 33, which increases the structural strength of the entire heater assembly 10. The rotating connection structure 32 is set on the support 33 and can be installed on the support 33 by means of screwing, bonding, snap-fitting, etc., or it can be integrally formed with the support 33. It can be understood that by setting the support 33 and then setting the rotating connection structure 32 on the support 33, the frame 30 is not only simple in structure and easy to manufacture, but also facilitates the rotation of the two side plates 31 relative to the heating device by driving the rotating connection structure 32 through the support 33.

[0048] This application also proposes a heating device, which includes the heater assembly 10 described above. The heating device can be an air conditioner, a ducted air conditioner 100, a heater, a hair dryer, etc. The specific structure of the heater assembly 10 is as described in the above embodiments. Since this heating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0049] like Figures 6 to 8 As shown, this application also proposes a ducted air conditioner 100, which includes a body 101 and the aforementioned heater assembly 10. The body 101 has an air outlet 102. The heater assembly 10 is rotatably mounted within the body 101 via the rotating connection structure 32 and is located at the air outlet 102. Specifically, the body 101 also includes a centrifugal fan and an evaporator 103. The centrifugal fan blows air towards the evaporator 103, which initially heats the air. The heater assembly 10 is installed between the evaporator 103 and the air outlet 102, thereby providing secondary heating to the air blown out of the evaporator 103, thus improving the indoor heat exchange efficiency. The specific structure of the heater assembly 10 is as described in the above embodiments. Since this heating device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0050] Optionally, in one embodiment, such as Figure 8 As shown, each of the side panels 31 has opposing inner and outer surfaces, with the air passage 40 formed between the two inner surfaces, and the outer surface being the windward side. Specifically, in this embodiment, please refer to... Figure 2 Taking the example where each side plate 31 has an air inlet side 311 and an air outlet side 312 in the wind direction, the distance between the two air inlet sides 311 is smaller than the distance between the two air outlet sides 312. In this case, the outer surface of each side plate 31 faces the evaporator 103 and serves as the windward surface. It can be understood that this design allows the air to act on the outer surface of the side plate 31 to generate force, while also being blown out along the side plate 31 towards the air outlet 102, without colliding with the airflow in the air passage 40. This avoids turbulence caused by collision, which would affect the air outlet efficiency and heat exchange efficiency.

[0051] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0052] The heater assembly provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A heater assembly used in a heating device, characterized in that, The heater assembly includes: Heating element, used to release heat; and, The frame includes two side panels spaced apart from each other, and the space between the two side panels forms an air passage. The heating element is installed in the air passage and connected to the frame. The frame is provided with a rotating connection structure at both ends. The rotating connection structure is used to rotatably install the frame in the heating device. Each side plate is also inclined away from the other side plate so that the air passage formed by the interval between the two side plates has a gradually increasing or decreasing width. When air blows onto the heater assembly, the air acts on the two side plates, causing the heater assembly to rotate. This allows the heater assembly to automatically adjust its installation angle until the airflow force on the two side plates is equal.

2. The heater assembly as claimed in claim 1, characterized in that, The heating body includes a heating plate that extends along the axial direction of the rotating connection structure, and the two side plates are symmetrically arranged about the heating plate.

3. The heater assembly as claimed in claim 2, characterized in that, The heating body also includes multiple heat sinks, the side plates are made of thermally conductive material, and the multiple heat sinks are connected between the heating plate and each of the side plates.

4. The heater assembly as claimed in claim 3, characterized in that, The side plate and the heat sink are made of the same thermally conductive material; and / or, the plurality of heat sinks are arranged in a corrugated pattern.

5. The heater assembly as claimed in claim 1, characterized in that, The included angle between the two side plates shall be no less than 60° and no more than 130°.

6. The heater assembly as claimed in any one of claims 1 to 5, characterized in that, The heater assembly also includes a mounting bracket for fixed connection with the heating device; The mounting bracket is provided with a connection hole, and the rotating connection structure is a connecting shaft, which is rotatably installed in the connection hole.

7. The heater assembly as claimed in claim 6, characterized in that, A limiting block is protruding from the outer circumferential surface of the connecting shaft, and a limiting groove is recessed from the inner circumferential surface of the connecting hole. The limiting block extends into the limiting groove from the connecting shaft and can rotate within the limiting groove under the drive of the connecting shaft.

8. The heater assembly as claimed in any one of claims 1 to 5, characterized in that, The frame also includes two supports spaced apart from each other, the two side plates are connected between the two supports, and each support is provided with the rotatable connection structure.

9. A heating device, characterized in that, Includes the heater assembly as described in any one of claims 1 to 8.

10. A ducted air conditioner, characterized in that, include: The body, wherein the body is provided with an air outlet; and, Includes the heater assembly as described in any one of claims 1 to 8, wherein the heater assembly is rotatably mounted in the housing via the rotating connection structure and is located at the air outlet.

11. The duct air conditioner as described in claim 10, characterized in that, Each of the side panels has opposing inner and outer surfaces, with the air passage formed between the two inner surfaces, and the outer surface being the windward side.

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