Air cavity structure of warmer
By optimizing the air cavity structure of the heater and adopting an integrated air outlet module and air duct design, the problems of inconvenient air outlet direction adjustment and low air duct efficiency of traditional heaters have been solved. This has enabled flexible adjustment of the air outlet angle and uniform air volume distribution, improving overall performance and ease of maintenance.
Patent Information
- Application Number
- CN202520310161.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Traditional heaters suffer from problems such as inconvenient airflow direction adjustment, low airflow efficiency, and scattered components, leading to increased comfort and maintenance difficulty.
The air outlet module adopts an integrated structure and an optimized air duct design, including a rotatable air outlet grille, an angled air duct input and output end, and a convex beveled side wall. Combined with a PTC thermistor heating element and a control module, it can achieve air outlet angle adjustment and uniform air volume distribution.
It improves the comfort and convenience of heaters, enhances airflow efficiency, simplifies installation and maintenance, and reduces operating costs.
Smart Images

Figure CN223768978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating equipment technology, and in particular to a heat heater air cavity structure. Background Technology
[0002] As people's living standards improve, their demands for the performance and comfort of heating equipment are also increasing. The air chamber structure of traditional heaters shows certain limitations in terms of airflow effect and ease of use.
[0003] Inconvenient airflow adjustment: Most traditional heaters use fixed airflow grilles, which cannot dynamically adjust the airflow direction according to user needs. In actual use, users may be in different positions and postures, such as sitting or lying on the sofa in the living room or resting in bed in the bedroom. The fixed airflow direction is difficult to meet the needs of all-round heating, reducing the comfort of heating.
[0004] Inefficient air ducts: Most existing air ducts are straight-through, with a uniform cross-sectional shape and unreasonable dimensions, resulting in significant airflow resistance. Tests have shown that the airflow resistance of such straight-through ducts is 30% higher than that of optimized duct designs. This airflow obstruction leads to uneven heat distribution.
[0005] Dispersed Components: The heating element, air outlet structure, and other components are scattered, connected by complex connectors and wiring, resulting in a complex overall structure. When a component malfunctions, maintenance personnel need to spend a significant amount of time and effort to troubleshoot and replace it, increasing maintenance difficulty. Furthermore, this dispersed layout makes the heater less compact, taking up more space and causing inconvenience in confined indoor environments.
[0006] In view of this, the present invention provides a wind cavity structure for a heater. Utility Model Content
[0007] The purpose of this utility model is to address the shortcomings of the existing technology by providing a wind cavity structure for a heater.
[0008] To solve the above technical problems, the following technical solution is adopted:
[0009] A heater's air cavity structure includes a shell and a panel, which cooperate to form a cavity. An air duct is provided inside the cavity. An air outlet is provided on the side of the shell, and the air outlet is connected to the output end of the air duct. An integrated structure is mounted on the air outlet. The integrated structure includes a PTC bracket and an air outlet module mounted on the PTC bracket. The air outlet module includes an air outlet grille, a rotating shaft, an air outlet motor, and a mounting frame. The mounting frame is disposed on the PTC bracket, and a rotatable air outlet grille is provided within the mounting frame. A rotating shaft is provided on one side of the air outlet grille, and the rotating shaft is connected to a rotating air outlet motor, which is fixedly mounted within the mounting frame.
[0010] Furthermore, the PTC bracket is equipped with a PTC thermistor heating element, which is electrically connected to the power module inside the cavity.
[0011] Furthermore, the input end of the air duct is connected to a fan wheel, and the input end and the output end of the air duct form an angle.
[0012] Furthermore, the wind turbine is equipped with an air inlet.
[0013] Furthermore, the air duct is provided with a sloping sidewall, and the sloping sidewall is provided with a protrusion.
[0014] Furthermore, the wind turbine is connected to a wind turbine motor, which is fixed inside the cavity and is used to drive the wind turbine to rotate.
[0015] Furthermore, a control module is provided in the chamber. The control module is connected to the rotary air outlet motor, the fan wheel motor and the PTC thermistor heating element for signal adjustment of the air outlet direction and temperature.
[0016] Furthermore, a power module is provided in the chamber, which supplies power to the control module, the rotary exhaust motor, the impeller motor, and the PTC thermistor heating element.
[0017] The above technical solution has the following beneficial effects:
[0018] 1. Overall Structure: The heater's air cavity structure of this utility model mainly consists of a shell and a panel. The shell and panel cooperate to form a cavity. This cavity serves as the basic framework of the entire air cavity structure, providing installation space for other internal components and providing protection.
[0019] 2. Air Duct Design: An air duct is installed inside the chamber. The inlet of the duct is connected to the impeller, and the outlet is connected to the air outlet on the side of the casing. The inlet and outlet of the duct form an angle ranging from 80° to 110°. This design effectively changes the airflow direction, and testing has shown that it improves the airflow efficiency within the chamber, thereby enhancing heat transfer efficiency. The air duct has a sloping sidewall with protrusions. The airflow is larger along the sloping sidewall and smaller in the middle. By setting the protrusions, the airflow from the sloping sidewall is guided to the middle of the air outlet, controlling the deviation of airflow at various points and achieving a uniform airflow distribution at the air outlet.
[0020] 3. Air Outlet Components: An integrated structure is installed on the air outlet, consisting of a PTC bracket and an air outlet module. This integrated structure can be pre-installed, eliminating the need for stepper motor installation transition parts or the use of bent screwdrivers, simplifying the installation process and the overall cabinet structure. Furthermore, the modular design allows for compatibility with other cabinet designs, saving up to 10% in product development costs. The PTC bracket houses a PTC thermistor heating element with a positive temperature coefficient, automatically adjusting power according to temperature changes. Under the same heating conditions, it achieves highly efficient and energy-saving heating. The air outlet module includes an air outlet grille, a rotating shaft, an air outlet motor, and a mounting frame. The mounting frame is mounted on the PTC bracket and contains a rotatable air outlet grille. A rotating shaft is located on one side of the air outlet grille, connected to a rotating air outlet motor. The rotating air outlet motor is fixedly installed within the mounting frame. The motor drives the rotating shaft, thus rotating the air outlet grille. Users can flexibly adjust the air outlet angle according to their needs, significantly improving heating comfort and convenience.
[0021] 4. Other Components: The impeller is equipped with an air inlet to facilitate air entry into the air chamber structure. The impeller also houses a motor that powers its rotation, allowing air to circulate within the duct. The chamber also contains a control module and a power module. The control module precisely controls the operation of components such as the impeller motor, the rotating air outlet motor, and the PTC thermistor, enabling various functions of the heater, such as precise temperature adjustment and flexible airflow angle control. The power module provides stable power to the entire air chamber structure, ensuring the normal operation of all components. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] Figure 1 This is a three-dimensional structural diagram of the air cavity structure of a heater according to an embodiment of the present invention.
[0024] Figure 2This is a front view schematic diagram of the air cavity structure of a heater according to an embodiment of the present utility model.
[0025] Figure 3 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the cross-sectional structure along direction A.
[0026] Figure 4 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the cross-sectional structure along the B direction.
[0027] Figure 5 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the cross-sectional structure along the C-axis.
[0028] Figure 6 This is a schematic diagram of the internal structure of the air cavity structure after the panel is removed in an embodiment of this utility model.
[0029] Figure 7 This is an exploded structural diagram of the chamber and integrated structure of an embodiment of the present invention.
[0030] Figure 8 This is a three-dimensional structural diagram of the integrated structure of an embodiment of the present utility model.
[0031] Figure 9 This is an exploded structural diagram of the integrated structure of an embodiment of the present utility model.
[0032] In the diagram: 1-shell; 2-panel; 3-chamber; 4-air duct; 5-air outlet; 6-integrated structure; 7-air inlet; 8-power module; 9-wind wheel; 10-sloping sidewall; 11-protrusion; 12-wind wheel motor; 13-control module.
[0033] 41 - Input end of the air duct; 42 - Output end of the air duct.
[0034] 61-PTC bracket; 611-PTC thermistor heating element.
[0035] 62-Air outlet module; 621-Air outlet grille; 622-Spindle; 623-Air outlet motor; 624-Mounting frame. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, with reference to the accompanying drawings and embodiments, further illustrates this utility model. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0037] See Figure 1-9 A heater air cavity structure includes a shell 1 and a panel 2. The shell 1 and the panel 2 cooperate to form a cavity 3. An air duct 4 is provided inside the cavity 3. An air outlet 5 is provided on the side of the shell 1. The air outlet 5 is connected to the output end of the air duct 4.
[0038] An integrated structure 6 is installed on the air outlet 5. The integrated structure 6 includes a PTC bracket 61 and an air outlet module 62 installed on the PTC bracket 61. The air outlet module 62 includes an air outlet grille 621, a rotating shaft 622, an air outlet motor 623, and a mounting frame 624. The mounting frame 624 is disposed on the PTC bracket 61. A rotatable air outlet grille 621 is provided inside the mounting frame 624. A rotating shaft 622 is provided on one side of the air outlet grille 621. The rotating shaft 622 is connected to a rotating air outlet motor 623. The rotating air outlet motor 623 is fixedly installed inside the mounting frame 624.
[0039] As a further explanation of this utility model, the PTC bracket 61 is equipped with a PTC thermistor heating element, which is electrically connected to the power module 8 in the chamber 3. The application of the PTC thermistor heating element enables automatic power adjustment according to temperature changes, achieving high efficiency and energy saving while ensuring heating effect and reducing operating costs.
[0040] As a further explanation of this utility model, the input end of the air duct 4 is connected to the impeller 9, and the input end and the output end of the air duct 4 form an angle.
[0041] As a further explanation of this utility model, the impeller 9 is provided with an air inlet 7. The impeller 9 is connected to an impeller motor 12, which is fixed inside the chamber 3. The impeller motor 12 drives the impeller 9 to rotate. The air inlet 7 on the impeller 9 facilitates air entering the air chamber structure. The impeller 9 is also equipped with an impeller motor 12 that drives the impeller 9 to operate, providing power for the rotation of the impeller 9 and enabling air to circulate within the air duct 4. The chamber 3 also houses a control module and a power module 8. The control module controls the operation of components such as the impeller motor 12, the rotating air outlet motor 623, and the PTC thermistor heating element, realizing various functions of the heater, such as temperature adjustment and air outlet angle control. The power module 8 provides power support for the entire air chamber structure, ensuring the normal operation of all components.
[0042] As a further explanation of this utility model, the air duct 4 is provided with a sloping sidewall 10, and the sloping sidewall 10 is provided with a protrusion 11. Since the air volume is the largest along the sloping sidewall 10 in the air duct 4, the air volume in the middle is the smallest. By adding the protrusion 11, the air volume of the sloping sidewall 10 is guided to the middle of the air outlet, so that the air volume is uniform at all points of the air outlet 5.
[0043] As a further explanation of this utility model, the chamber 3 is provided with a control module 13, which is connected to the rotary air outlet motor 623, the fan wheel motor 12 and the PTC thermistor heating element for adjusting the air outlet direction and temperature.
[0044] As a further explanation of this utility model, the chamber 3 is provided with a power module 8, which supplies power to the control module 13, the rotary exhaust motor 623, the impeller motor 12 and the PTC thermistor heating element.
[0045] Installation process and working principle:
[0046] 1. Installation Process: During the heater's production process, firstly, the air duct 4 is installed inside the chamber 3, ensuring that the input end of the air duct 4 is accurately connected to the impeller 9 and the output end is aligned with the air outlet 5. Next, the PTC thermistor heating element is installed inside the PTC bracket 61. Then, the components of the air outlet module 62 are assembled and installed on the PTC bracket 61, forming an integrated structure 6, which is then installed at the air outlet 5. Next, the impeller motor 12 is installed, ensuring it can drive the impeller 9 to rotate normally. Afterwards, the control module 13 and power module 8 are installed inside the chamber 3 and connected to the wiring, enabling all components to work together. Finally, the housing 1 and panel 2 are assembled together, completing the installation of the entire heater's air cavity structure.
[0047] 2. Working Process: When the heater is turned on, the power module 8 supplies power to all components. The fan motor 12 drives the fan wheel 9 to rotate, and air enters from the air inlet 7 of the fan wheel 9, flowing along the air duct 4 under the action of the fan wheel 9. Inside the air duct 4, the air exchanges heat with the heat generated by the PTC thermistor heating element and is heated into hot air. The hot air flows towards the air outlet 5 guided by the air duct 4. At the air outlet 5, the user can start the rotating air outlet motor 623 through the control module 13. The rotating air outlet motor 623 drives the air outlet grille 621 to rotate, adjusting the air outlet angle so that the hot air can be blown in different directions according to the user's needs to achieve the purpose of heating. At the same time, the control module 13 can automatically adjust the power of the PTC thermistor heating element according to the set temperature value to keep the temperature of the hot air blown out by the heater stable.
[0048] Beneficial effects:
[0049] 1. Flexible air outlet angle adjustment: By rotating the air outlet motor 623 to drive the air outlet grille 621 to rotate, users can adjust the air outlet direction at will according to their own needs, meet the heating needs in different scenarios, and improve the comfort and convenience of heating.
[0050] 2. High-efficiency heating and energy saving: The application of PTC thermistor heating element enables it to automatically adjust power according to temperature changes, achieving high efficiency and energy saving while ensuring heating effect and reducing operating costs.
[0051] 3. Optimize the design of the air duct 4: The angle design between the input and output ends of the air duct 4, as well as the setting of the inclined sidewall 10 and the convex 11, result in the largest air volume along the inclined sidewall 10 in the air duct 4, which leads to the smallest air volume in the middle. By adding the convex 11, the air volume of the inclined sidewall 10 is guided to the middle of the air outlet, so that the air volume at each part of the air outlet 5 is uniform.
[0052] 4. Compact and reasonable structure: The layout of each component in chamber 3 is compact and reasonable, which makes full use of space and facilitates installation, maintenance and repair, thereby improving the overall performance and reliability of the product.
[0053] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A wind cavity structure of a warmer, characterized by: The application relates to a PTC air conditioner, which comprises a shell and a panel, the shell and the panel are matched to form a cavity, a wind channel is arranged in the cavity, a side of the shell is provided with an air outlet, the air outlet is connected with the output end of the wind channel, an integrated structure is arranged on the air outlet, the integrated structure comprises a PTC support and an air outlet module arranged on the PTC support, the air outlet module comprises an air outlet grille, a rotating shaft, an air outlet motor and a mounting frame, the mounting frame is arranged on the PTC support, the air outlet grille is rotatably arranged in the mounting frame, one side of the air outlet grille is provided with the rotating shaft, the rotating shaft is connected with the rotating air outlet motor, and the rotating air outlet motor is fixedly arranged in the mounting frame.
2. The air chamber structure of a warmer according to claim 1, wherein: A PTC heat-sensitive heating body is arranged in the PTC support, and the PTC heat-sensitive heating body is electrically connected with a power module in the cavity.
3. The air chamber structure of a warmer according to claim 2, wherein: The input end of the wind channel is connected with a wind wheel, and the input end of the wind channel and the output end of the wind channel form an included angle.
4. The air chamber structure of a warmer according to claim 3, wherein: An air inlet is arranged on the wind wheel.
5. The air chamber structure of a warmer according to claim 3, wherein: An inclined side wall is arranged on the wind channel, and a convex envelope is arranged on the inclined side wall.
6. The air chamber structure of a warmer according to claim 3, wherein: The wind wheel is connected with a wind wheel motor, the wind wheel motor is fixed in the cavity, and the wind wheel motor is used for driving the wind wheel to rotate.
7. The air chamber structure of a warmer according to claim 6, wherein: A control module is arranged in the cavity, the control module is signal-connected with the rotating air outlet motor, the wind wheel motor and the PTC heat-sensitive heating body, and is used for adjusting the air outlet direction and temperature.
8. The air chamber structure of a warmer according to claim 6, wherein: A power module is arranged in the cavity, and the power module is used for supplying power to the control module, the rotating air outlet motor, the wind wheel motor and the PTC heat-sensitive heating body.