All-air system

Abstract

The all-air system comprises a frame, a heat exchange module, an electric heating module and an air supply module, the heat exchange module, the electric heating module and the air supply module are all arranged in the frame, and the electric heating module is located between the air outlet face of the heat exchange module and an air inlet of the air supply module; the electric heating module comprises a support detachably installed in the frame and a plurality of heating pieces arranged on the support side by side, and the distance between every two adjacent heating pieces is equal. Through the heating pieces arranged in parallel, uniform distribution of heat is achieved, and the heating efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air systems, and particularly relates to a full air system. BACKGROUND

[0002] In the existing full air system, an electric heating device is often used to adjust air temperature to meet specific environmental requirements. However, the traditional heating method often has problems such as uneven heating, large wind resistance, low energy efficiency and the like. In particular, when a PTC electric heating element is used, how to reasonably arrange to maximize the heating efficiency and reduce the wind resistance becomes a technical problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the present application is to provide a full air system, which realizes uniform distribution of heat through parallel arrangement of heating pieces, and significantly improves the heating efficiency.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] On the one hand, a full air system is provided, comprising a frame, a heat exchange module, an electric heating module and an air supply module, the heat exchange module, the electric heating module and the air supply module are all arranged in the frame, and the electric heating module is located between the air outlet surface of the heat exchange module and the air inlet of the air supply module; the electric heating module comprises a bracket which is detachably installed in the frame, and a plurality of heating pieces which are arranged side by side on the bracket, the distance between adjacent two heating pieces is equal.

[0006] Further, the bracket can be pushed into the frame to be fixed along a first direction, or pulled out of the frame along the opposite direction.

[0007] Further, the frame has two opposite inner walls, and each of the two opposite inner walls is provided with a push-pull groove matched with the bracket.

[0008] Further, the frame has two opposite inner walls, and each of the two opposite inner walls is provided with two fixed plates which are arranged at intervals, and the push-pull groove is formed between the two fixed plates on the same inner wall.

[0009] Further, the fixed plate is provided with a limiting part at the end of the push-pull groove.

[0010] Further, the cross section of the fixed plate is in the shape of L.

[0011] Further, the air supply module is a fan, the diameter of the fan wheel of the fan is D, and the vertical distance between the electric heating module and the air inlet of the fan is H, wherein H≥D / 2.

[0012] Further, the distance between adjacent two heating pieces is S, wherein 60mm≤S≤150mm.

[0013] Further, the heat exchange module is arranged at the lower part of the frame, the electric heating module is arranged above the heat exchange module, the air supply module is arranged directly above the electric heating module, and the top of the frame is provided with an air supply opening corresponding to the air supply module.

[0014] Further, the air supply module is provided with a sound reduction module above.

[0015] The beneficial effects of the present application are: the system integrates a heat exchange module, an electric heating module, and an air supply module, wherein the electric heating module adopts a detachable bracket structure, and a plurality of heating elements with equal spacing are arranged side by side on the bracket structure. This design enables the air to uniformly contact each heating element when flowing through the heating module, avoiding the problem of uneven heating in traditional heating methods, and reducing air resistance. The air dehumidified by the heat exchange module is further heated to the required temperature in the electric heating module, and finally sent into the target environment by the air supply module. This system not only improves the heating efficiency, but also is easy to maintain and replace the heating elements, reduces the maintenance cost, and enhances the flexibility and adaptability of the system, which can be flexibly adjusted according to different environmental and temperature requirements, thereby realizing the double improvement of energy efficiency and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below according to the drawings and examples.

[0017] Figure 1 Internal schematic diagram of the all-air system according to the embodiment of the present application Figure One

[0018] Figure 2 Internal schematic diagram of the all-air system according to the embodiment of the present application Figure Two

[0019] Figure 3 Assembly schematic of the electric heating module and the fixing plate according to the embodiment of the present application Figure One

[0020] Figure 4 Assembly schematic of the electric heating module and the fixing plate according to the embodiment of the present application Figure Two

[0021] Figure 5 Assembly schematic of the electric heating module and the fixing plate according to the embodiment of the present application Figure Three

[0022] In the figure: 1, frame; 2, heat exchange module; 3, electric heating module; 301, bracket; 302, heating element; 4, air supply module; 5, fixing plate; 501, limiting part; 6, air supply opening. DETAILED DESCRIPTION​​​​​

[0023] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the present application, unless explicitly defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] As shown in Figures 1-5 The present embodiment provides a full-air system, comprising a frame 1, a heat exchange module 2, an electric heating module 3 and a supply air module 4, the heat exchange module 2, the electric heating module 3 and the supply air module 4 are arranged in the frame 1, and the electric heating module 3 is located between the air outlet surface of the heat exchange module 2 and the air inlet of the supply air module 4; the electric heating module 3 comprises a support 301 detachably mounted in the frame 1, and a plurality of heating elements 302 arranged side by side on the support 301, the spacing between adjacent two heating elements 302 is equal.

[0027] Based on the above scheme, the system integrates frame 1, heat exchange module 2, electric heating module 3 and air supply module 4, all modules are arranged inside the frame 1, forming a compact and orderly structure. Among them, the heat exchange module 2 is responsible for dehumidification treatment, which reduces the humidity in the air, creates favorable conditions for the subsequent heating process, so that dry air can be more efficiently heated in the electric heating module 3, thereby improving the overall utilization rate and heating efficiency of the electric heating module 3. The electric heating module 3 is located between the air outlet surface of the heat exchange module 2 and the air inlet of the air supply module 4, playing a key role in connecting the previous and the next. This module is composed of a bracket 301 detachably installed in the frame 1 and a plurality of heating elements 302 arranged side by side on the bracket 301. These heating elements 302 not only have sufficient quantity, but also the spacing between adjacent two heating elements 302 is accurately designed to be equal, so as to ensure that the air can receive uniform and efficient heat transfer when flowing through the electric heating module 3. Finally, the air dehumidified by the heat exchange module 2 and heated by the electric heating module 3 is sent into the target environment by the air supply module 4, realizing accurate regulation of air temperature and humidity. This system not only improves the heating efficiency and reduces the energy consumption, but also makes the system easy to maintain and replace the heating elements 302 due to the uniform layout and detachable design of the heating elements 302, further enhancing the flexibility and adaptability of the system. This innovative all-air system provides users with a more comfortable, energy-saving and efficient air conditioning solution.

[0028] It is worth noting that the bracket 301 is square in shape, and a plurality of heating elements 302 are evenly arranged at the center position of the bracket 301. This layout design is based on an important observation: at both ends of the bracket 301, the flow rate and flow volume of the air flow will decrease accordingly due to the obstruction of the frame 1 and the edge of the bracket 301. Placing the heating elements 302 at the center position of the bracket 301 can ensure that more air can directly and fully contact the heating elements 302, thereby more effectively absorbing heat. This design avoids the problem of uneven heating that may occur in traditional heating methods, because even in the case of less air flow at the edge of the bracket 301, the heating elements 302 in the central region can still efficiently heat the air flowing through. The beneficial effects brought by this layout are significant. First, it improves the heating efficiency, because more air can be directly heated by the heating elements 302, reducing energy waste. Second, it ensures the uniformity of air temperature, because the uniform distribution of heating elements 302 at the center position of the bracket 301 ensures that the air receives consistent heat transfer when flowing through. Finally, this design also improves the reliability and durability of the system, because the heating elements 302 are concentrated in the central region, reducing friction and collision with the edge of the bracket 301, thereby prolonging the service life of the heating elements 302.

[0029] Further, the bracket 301 can be pushed into the frame 1 and fixed in the first direction, or pulled out of the frame 1 in the opposite direction. This push-pull installation method greatly simplifies the installation and disassembly process of the electric heating module 3. Users do not need complex tools or steps, but only need to perform a simple push-pull action to remove or install the entire electric heating module 3 from the frame 1. This not only improves the maintainability of the system, making it easier for users to clean, repair or replace the electric heating module 3, but also reduces maintenance costs and time. In addition, this design also enhances the flexibility and scalability of the system. When users need to adjust the heating power according to different environmental or temperature requirements, they can easily remove the electric heating module 3 and replace different power or number of heating elements 302 to meet specific heating requirements. This flexible adjustment method makes the system better adapt to various application scenarios, improving the practicality and user experience of the system.

[0030] Further, the frame 1 has two fixed plates 5 arranged on the opposite inner walls, and the two fixed plates 5 on the same inner wall form a push-pull slot for cooperating with the bracket 301. This design allows the bracket 301 to easily push or pull out of the frame 1 along the direction of the push-pull slot, achieving fast installation and disassembly of the electric heating module 3. Users only need to align the bracket 301 with the push-pull slot and then push it along the direction of the slot to securely install the electric heating module 3 in the frame 1. Similarly, when disassembling the electric heating module 3, users only need to pull the bracket 301 in the opposite direction to easily remove it from the frame 1. The push-pull slot design not only simplifies the installation and disassembly process, but also improves the stability and safety of the system. Since the bracket 301 is guided and supported by the fixed plate 5 during pushing and pulling, it can maintain a stable movement trajectory, avoiding safety hazards caused by shaking or misalignment. At the same time, the presence of the fixed plate 5 also increases the strength and rigidity of the frame 1, making the entire system more stable and durable.

[0031] In addition, the cross-section of the fixing plate 5 is designed in an L shape, which not only enhances the strength and stability of the fixing plate 5, but also provides more reliable guidance and support for the installation and removal of the bracket 301. More importantly, the fixing plate 5 is also provided with a limiting part 501 located at the end of the push-pull slot. This limiting part 501 plays a crucial role, ensuring that the bracket 301 can accurately stop at the predetermined position when pushed into the frame 1, thereby avoiding the risk of damage or falling of the bracket 301 due to excessive movement during the push-pull process. At the same time, the limiting part 501 also enables the bracket 301 to be more firmly fixed in the frame 1 during installation, improving the overall stability and safety of the system. Moreover, since the L-shaped fixing plate 5 has a certain depth and width, it can effectively prevent dust and debris from entering the push-pull slot, thereby reducing the maintenance cost and cleaning difficulty of the system.

[0032] In some embodiments, the air supply module 4 uses a fan as a power source, and the diameter of the fan wheel is set to D. In order to ensure the stability and energy efficiency of the system, after careful calculation and experimental testing, the vertical distance H between the electric heating module 3 and the fan inlet is determined to be at least half of the diameter of the fan wheel D, i.e. H ≥ D / 2, to ensure that the electric heating module 3 does not directly interfere with the airflow of the fan wheel. Taking the diameter of the fan wheel as 400mm as an example, according to this design principle, the distance between the electric heating module 3 and the fan inlet needs to be at least 200mm. However, in this embodiment, this distance is set to 225mm, which exceeds the minimum safety distance, to further ensure the stability and energy efficiency of the system. The purpose of this design is to avoid the heating element directly interfering with the airflow of the fan wheel, thereby maintaining the reasonableness of the internal wind field. When the heating element is too close to the fan wheel, it may change the flow field characteristics of the fan wheel, causing airflow turbulence and increased wind resistance, thereby affecting the overall energy efficiency of the system. By maintaining a certain safety distance, it can ensure that the fan wheel can smoothly suck in air and efficiently deliver it to the system, thereby improving the overall energy efficiency of the system.

[0033] In addition, this design also helps to reduce unnecessary wind resistance. When the heating element is too close to the fan wheel, a layer of hot air film may form on the surface of the heating element, which will hinder the inflow of cold air, thereby increasing the wind resistance. By maintaining a certain safety distance, the formation of this hot air film can be avoided, thereby reducing wind resistance and improving the energy efficiency of the system.

[0034] Optionally, the spacing between two adjacent heating elements 302 is S, where 60mm≤S≤150mm. This spacing range is based on a comprehensive consideration of multiple factors. First, sufficient spacing can ensure that air is sufficiently heated when flowing through the heating elements 302, thereby improving heating efficiency. If the spacing is too small, air may not be able to fully contact the heating elements 302, resulting in uneven heating or low efficiency. Conversely, if the spacing is too large, although the air can be more fully heated, it may increase the number and cost of heating elements 302, while reducing the compactness and energy efficiency of the system. Second, appropriate spacing can also reduce the mutual influence between heating elements 302, avoiding damage caused by local overheating or excessive thermal stress. During the heating process, heating elements 302 will produce certain heat radiation and heat conduction. If the spacing is too small, the thermal influence between adjacent heating elements 302 may be intensified, resulting in uneven heating or local overheating. By maintaining appropriate spacing, the thermal influence can be reduced, thereby prolonging the service life of the heating elements 302 and the stability of the system. In addition, the spacing range of 60mm to 150mm also takes into account the maintainability and cleaning convenience of the system. Within this range, users can easily disassemble and replace the heating elements 302, perform maintenance and cleaning work on the system. At the same time, this spacing is also sufficient to accommodate some necessary connections and fixings to ensure the stability and reliability of the heating elements 302. Specifically, S can be 100mm.

[0035] Generally, the heat exchange module 2 is arranged at the lower part of the frame 1, the electric heating module 3 is arranged above the heat exchange module 2, the air supply module 4 is arranged directly above the electric heating module 3, and the top of the frame 1 is provided with an air outlet 6 corresponding to the air supply module 4. This layout design has the following advantages: first, arranging the heat exchange module 2 at the lower part of the frame 1 can ensure that air is first subjected to heat exchange when entering the system. The heat exchange module 2 usually cools or preheats or dehumidifies the air entering the system. By placing it at the bottom, the gravitational effect can be maximized to allow air to flow naturally and pass through the heat exchange module 2. This not only improves heat exchange efficiency, but also reduces energy consumption and noise.

[0036] Second, the electric heating module 3 is located above the heat exchange module 2, which can ensure that the air after heat exchange is further heated. The electric heating module 3 converts electrical energy into heat energy to heat the air. By placing it above the heat exchange module 2, the heating process can be ensured to proceed in the direction of air flow, thereby improving heating efficiency and uniformity.

[0037] Again, the air supply module 4 is arranged directly above the electric heating module 3, which can ensure that the heated air is quickly sent into the room. The air supply module 4 contains power equipment such as a fan, which blows the heated air to the area that needs to be heated by generating air flow. By placing it above the electric heating module 3, it can ensure that the heated air is directly sucked into the air supply module 4 and quickly sent into the room, thereby improving the response speed and heating efficiency of the system.

[0038] Finally, the air supply outlet 6 at the top of the frame 1 corresponds to the air supply module 4, which can ensure that the heated air is evenly sent into the room. The design of the air supply outlet 6 usually takes into account the flow characteristics of the air and the layout of the room to ensure that the air can be evenly distributed throughout the room, thereby improving the heating effect and comfort.

[0039] It is worth noting that the air supply module is provided with a sound attenuation module above it. The main function of the sound attenuation module is to reduce the noise generated during the air flow, ensuring that the sound produced during the operation of the system is within an acceptable range, thereby providing a more quiet and comfortable environment for the user. The sound attenuation module is arranged above the air supply module, which means that the air will first pass through the sound attenuation module for noise reduction treatment before being sent into the target environment by the air supply module. This layout ensures the maximization of the noise reduction effect.

[0040] Specifically, the heat exchange module 2 is a fin heat exchanger; and / or the heating element 302 is a PTC heater. The fin heat exchanger is a high-efficiency heat exchange device whose working principle is to increase the contact area between air and heat exchange medium through the expansion of the surface area of the fins, thereby improving the heat exchange efficiency. The fin heat exchanger has the advantages of compact structure, light weight, high heat transfer efficiency and easy maintenance, and therefore is widely used in air conditioning systems.

[0041] The PTC heater is a heater that works based on the principle of positive temperature coefficient thermistor (PTC), which has the advantages of fast heating speed, adjustable power, stable temperature, safety and reliability. In this system, the PTC heater is used as the main heating element of the electric heating module 3, which converts electrical energy into heat energy to heat the air. The use of PTC heater not only improves the heating efficiency and uniformity of the system, but also reduces energy consumption and noise, providing a more comfortable and healthy indoor environment for users.

[0042] In addition, the combination of fin heat exchanger and PTC heater also brings additional advantages. The fin heat exchanger can effectively reduce the humidity of the air entering the electric heating module 3, reducing the burden on the PTC heater, thereby improving its service life and efficiency. At the same time, the PTC heater can also quickly heat the air treated by the fin heat exchanger, ensuring that the indoor temperature reaches the user's set requirements.

[0043] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like, are intended to facilitate the description and simplify the operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only used to distinguish in the description, and have no special meaning.

[0044] In the description of the present application, the description referring to the terms "an embodiment", "an example", and the like, means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0045] In addition, it should be understood that although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the present application is only for the sake of clarity, and those skilled in the art should consider the present application as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0046] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to make creative efforts to conceive other specific embodiments of the present application, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A full air system characterized in that, The application relates to a heat exchange device, which comprises a frame (1), a heat exchange module (2), an electric heating module (3) and a blowing module (4), wherein the heat exchange module (2), the electric heating module (3) and the blowing module (4) are arranged in the frame (1), the electric heating module (3) is arranged between the air outlet surface of the heat exchange module (2) and the air inlet of the blowing module (4), the electric heating module (3) comprises a support (301) which is detachably arranged in the frame (1) and a plurality of heating elements (302) which are arranged side by side on the support (301), and the distance between two adjacent heating elements (302) is equal. The support (301) can be pushed into the frame (1) to be fixed or pulled out of the frame (1) in the opposite direction.

2. The all-air system according to claim 1, wherein, The opposite inner walls of the frame (1) are provided with push-pull grooves which are matched with the support (301).

3. The all-air system according to claim 2, wherein, The opposite inner walls of the frame (1) are provided with two fixed plates (5) which are arranged at intervals, and the two fixed plates (5) on the same inner wall form the push-pull groove.

4. The all-air system according to claim 3, wherein, The fixed plate (5) is provided with a limiting part (501) at the end of the push-pull groove.

5. The all-air system according to claim 4, wherein, The cross section of the fixed plate (5) is in the shape of L.

6. The all-air system according to claim 4, wherein, The blowing module (4) is a fan, the diameter of the fan wheel is D, the vertical distance between the electric heating module (3) and the air inlet of the fan is H, and H is greater than or equal to D / 2.

7. A fully air system according to any of claims 1-6, characterized in that The distance between two adjacent heating elements (302) is S, and 60mm<=S<=150mm.

8. The all-air system according to any of claims 1-6, wherein, The heat exchange module (2) is arranged at the lower part of the frame (1), the electric heating module (3) is arranged above the heat exchange module (2), the blowing module (4) is arranged directly above the electric heating module (3), and the top of the frame (1) is provided with a blowing outlet (6) which corresponds to the blowing module (4).

9. The all-air system according to any of claims 1-6, wherein, An acoustic module is arranged above the blowing module.

10. The all-air system according to any of claims 1-6, wherein, ​

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