Circulating drying device for vehicle

By using a circulating drying device combining molecular sieves and silica gel layers in vehicles, along with the adsorption and desorption regeneration process of the heating components, the problem of moisture removal from the drying tank under high humidity and low temperature conditions has been solved, improving the reliability and safety of the vehicle.

CN223832086UActive Publication Date: 2026-01-27MANNHUMMEL FILTER SHANGHAI
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Patent Information

Application Number
CN202423215009.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-27
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing dryer canisters are ineffective at removing moisture under high humidity and low temperature conditions, leading to corrosion and icing of the braking system, which affects the reliability and safety of the vehicle.

Method used

A vehicle-mounted circulating drying device is designed, which uses a combination of molecular sieves and silica gel layers as adsorbent materials, combined with heating components for adsorption, desorption and regeneration, to achieve efficient air drying.

Benefits of technology

It provides better drying performance under different humidity and temperature conditions, extends the life of automotive parts, reduces the adverse effects of moisture on vehicle parts, and is recyclable and environmentally friendly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a vehicle circulation drying device which comprises an air inlet end, a shell, a heating assembly and an air outlet end, the air inlet end is arranged at one end of the shell, the air outlet end is arranged at the other end of the shell, and an adsorption assembly and the heating assembly are arranged in the shell. The air inlet end is used for introducing wet air, the adsorption assembly is used for adsorbing moisture in the air, and the air outlet end is used for discharging dried air; when the automotive circulating drying device is used for desorption regeneration, the air inlet end is used for introducing air, the heating assembly is used for heating the adsorption assembly, and the air outlet end is used for discharging moist air containing moisture in the adsorption assembly. Compared with the prior art, the circulating drying device for the vehicle can be easily installed on different parts of the vehicle, such as an air conditioning system, a braking system or any other system which needs to control humidity to improve performance and safety, and the adverse effect of moisture on vehicle parts is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a vehicle-mounted circulating drying device. Background Technology

[0002] In the automotive industry, the presence of moisture can lead to corrosion of internal system components, affecting vehicle reliability and safety.

[0003] Braking performance is a crucial vehicle parameter directly impacting driving safety. Air brake systems rely primarily on air, but the presence of water vapor in the air is unavoidable, especially at high humidity levels. Compressed water vapor condenses into liquid water, which can then enter various parts of the braking system through the piping, affecting the performance and lifespan of rubber components such as sensor connectors and pump valves. This can lead to air leaks, failure to inflate the air tank, and abnormal braking. At low temperatures, moisture in the braking system can freeze, causing piping icing, preventing the pump valves from opening, and resulting in brake failure – a highly dangerous situation. Therefore, the condition and drying status of the air dryer are directly related to driving safety. The air dryer connects the air compressor and the air tank, its main function being to dry and filter the compressed air entering the air brake system. It typically consists of a housing and a drying cylinder above it. The housing usually has inlets and outlets for air flow, while the drying cylinder uses a moisture-absorbing drying medium, such as a traditional multi-layered filter core.

[0004] With technological advancements and increasing market demand, the need for solutions that effectively remove moisture and extend the lifespan of automotive components is constantly growing. Therefore, developing an automotive drying canister that provides superior drying performance has become a significant driving force in this field. Utility Model Content

[0005] The purpose of this invention is to provide a vehicle-mounted circulating drying device. This device is easily installed in various parts of the vehicle, such as the air conditioning system, braking system, or any other system requiring humidity control to improve performance and safety, significantly reducing the adverse effects of moisture on vehicle components.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A vehicle-mounted circulating dryer includes an air inlet, a housing, a heating assembly, and an air outlet. The housing has an air inlet at one end and an air outlet at the other end. An adsorption assembly and a heating assembly are located inside the housing.

[0008] When the vehicle-mounted circulating dryer is performing adsorption, the air inlet is used to introduce humid air, the adsorption component is used to adsorb moisture in the air, and the air outlet is used to discharge the dried air.

[0009] When the vehicle-mounted circulating dryer is desorbed and regenerated, the air inlet is used to introduce air, the heating component is used to heat the adsorption component, and the air outlet is used to discharge humid air containing moisture from the adsorption component.

[0010] In one embodiment of this utility model, the air inlet includes an air inlet pipe, which is connected to the housing.

[0011] In one embodiment of this utility model, the air outlet includes a first air outlet pipe, a second air outlet pipe, and a connecting pipe. One end of the connecting pipe is connected to the housing, and the other end of the connecting pipe is connected to both the second air outlet pipe and the first air outlet pipe. The first air outlet pipe is used to discharge the moisture stored in the adsorption assembly, and the second air outlet pipe is used to discharge the dried air.

[0012] In one embodiment of this utility model, the connecting pipe, the first air outlet pipe, and the second air outlet pipe are connected by a three-way valve.

[0013] In one embodiment of this utility model, a central tube is provided inside the housing, and the heating component is located inside the central tube.

[0014] In one embodiment of this utility model, the heating component includes a heating film and a PTC heating plate.

[0015] In one embodiment of the present invention, the adsorption assembly includes a first molecular sieve layer, a silica gel layer, and a second molecular sieve layer, and the first molecular sieve layer, the silica gel layer, and the second molecular sieve layer are arranged sequentially from front to back between the central tube and the shell.

[0016] In one embodiment of this invention, the thickness of the first molecular sieve layer accounts for one-tenth of the total height of the adsorption assembly.

[0017] In one embodiment of this utility model, the thickness of the silicone layer accounts for five-tenths of the total height of the adsorption assembly.

[0018] In one embodiment of this invention, the thickness of the second molecular sieve layer accounts for four-tenths of the total height of the adsorption assembly.

[0019] The working principle of this utility model is as follows:

[0020] Adsorption process: After humid air flows through adsorption materials such as molecular sieves and silica gel, the humidity in the air will drop significantly. However, as time goes on, the adsorption capacity of the adsorption material will gradually become saturated, and the adsorption rate will gradually decrease.

[0021] To meet the design requirements of cost reduction and environmental protection, this utility model incorporates a recyclable function. When the vehicle-mounted circulating dryer fails to meet the design requirements for drying effect, the adsorbent material needs to be regenerated at high temperature to restore its adsorption performance and capacity for moisture in the air.

[0022] Desorption and regeneration process: The adsorbent material is heated by a heating element. Utilizing the principle that increased temperature reduces the adsorption capacity of the material, ordinary air is introduced during this process to release the moisture stored within the adsorbent material into the atmosphere, thus achieving partial regeneration of the adsorbent material. The service life of the circulating drying device is mainly related to the adsorbent material itself.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The vehicle circulating drying device provided by this utility model has a simple design and is easy to install in different parts of the vehicle, which greatly reduces the adverse effects of moisture on vehicle components.

[0025] 2. This invention, by combining adsorbent materials, better leverages the advantages of each, resulting in superior drying performance. The molecular sieve maintains a high adsorption rate even under varying humidity and temperature conditions. Furthermore, its adsorption capacity gradually increases with increasing humidity. The molecular sieve possesses strong rapid dehumidification capabilities. Meanwhile, silica gel particles also exhibit a large adsorption capacity even at lower humidity levels. This invention employs a layered design of molecular sieve-silica gel-molecular sieve, ensuring the ability to adsorb moisture in various ambient air conditions and significantly reducing the adverse effects of moisture on automotive components.

[0026] 3. The vehicle-mounted circulating drying device provided by this utility model can be reused repeatedly and is environmentally friendly. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the vehicle-mounted circulating drying device of this utility model.

[0028] Explanation of the attached figures: 1. Inlet pipe, 2. Shell, 3. First molecular sieve layer, 4. Heating component, 5. Silicone layer, 6. Central tube, 7. Three-way valve, 8. First outlet pipe, 9. Second outlet pipe, 10. Second molecular sieve layer, 11. Connecting pipe. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Example 1

[0035] See Figure 1 This embodiment provides a vehicle-mounted circulating drying device, including an air inlet, a housing 2, a heating assembly 4, and an air outlet. The housing 2 has an air inlet at one end and an air outlet at the other end. The housing 2 contains an adsorption assembly and a heating assembly 4.

[0036] When the vehicle-mounted circulating dryer is performing adsorption, the air inlet is used to introduce humid air, the adsorption component is used to adsorb moisture in the air, and the air outlet is used to discharge the dried air.

[0037] When the vehicle-mounted circulating dryer is desorbed and regenerated, the air inlet is used to introduce air, the heating component 4 is used to heat the adsorption component, and the air outlet is used to discharge humid air containing moisture from the adsorption component.

[0038] In this embodiment, the air intake end includes an air intake pipe 1, which is connected to the housing 2.

[0039] In this embodiment, the air outlet includes a first air outlet pipe 8, a second air outlet pipe 9, and a connecting pipe 11. One end of the connecting pipe 11 is connected to the housing 2, and the other end of the connecting pipe 11 is connected to both the second air outlet pipe 9 and the first air outlet pipe 8. The first air outlet pipe 8 is used to discharge the moisture stored in the adsorption component, and the second air outlet pipe 9 is used to discharge the dried air.

[0040] In this embodiment, the connecting pipe 11, the first air outlet pipe 8, and the second air outlet pipe 9 are connected by a three-way valve 7.

[0041] In this embodiment, a central tube 6 is provided inside the housing 2, and the heating component 4 is located inside the central tube 6.

[0042] In this embodiment, the heating component 4 includes a heating film and a PTC heating plate.

[0043] In this embodiment, the adsorption assembly includes a first molecular sieve layer 3, a silica gel layer 5, and a second molecular sieve layer 10. The first molecular sieve layer 3, the silica gel layer 5, and the second molecular sieve layer 10 are arranged sequentially from front to back between the central tube 6 and the shell 2.

[0044] In this embodiment, the thickness of the first molecular sieve layer 3 accounts for one-tenth of the total height of the adsorption component.

[0045] In this embodiment, the thickness of the silicone layer 5 is five-tenths of the total height of the adsorption assembly.

[0046] In this embodiment, the thickness of the second molecular sieve layer 10 accounts for four-tenths of the total height of the adsorption component.

[0047] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A vehicle-mounted circulating drying device, characterized in that, It includes an air inlet, a housing (2), a heating component (4), and an air outlet. The housing (2) has an air inlet at one end and an air outlet at the other end. The housing (2) contains an adsorption component and a heating component (4). When the vehicle-mounted circulating dryer is performing adsorption, the air inlet is used to introduce humid air, the adsorption component is used to adsorb moisture in the air, and the air outlet is used to discharge the dried air. When the vehicle-mounted circulating dryer is desorbed and regenerated, the air inlet is used to introduce air, the heating component (4) is used to heat the adsorption component, and the air outlet is used to discharge humid air containing moisture from the adsorption component.

2. The vehicle-mounted circulating drying device according to claim 1, characterized in that, The air intake end includes an air intake pipe (1), which is connected to the housing (2).

3. The vehicle-mounted circulating drying device according to claim 1, characterized in that, The air outlet includes a first air outlet pipe (8), a second air outlet pipe (9), and a connecting pipe (11). One end of the connecting pipe (11) is connected to the housing (2), and the other end of the connecting pipe (11) is connected to both the second air outlet pipe (9) and the first air outlet pipe (8). The first air outlet pipe (8) is used to discharge the moisture stored in the adsorption assembly, and the second air outlet pipe (9) is used to discharge the dried air.

4. The vehicle-mounted circulating drying device according to claim 3, characterized in that, The connecting pipe (11), the first air outlet pipe (8), and the second air outlet pipe (9) are connected by a three-way valve (7).

5. A vehicle-mounted circulating drying device according to claim 1, characterized in that, The housing (2) has a central tube (6) inside, and the heating component (4) is located inside the central tube (6).

6. The vehicle-mounted circulating drying device according to claim 1, characterized in that, The heating component (4) includes a heating film and a PTC heating plate.

7. A vehicle-mounted circulating drying device according to claim 5, characterized in that, The adsorption assembly includes a first molecular sieve layer (3), a silica gel layer (5), and a second molecular sieve layer (10). The first molecular sieve layer (3), the silica gel layer (5), and the second molecular sieve layer (10) are arranged sequentially between the central tube (6) and the shell (2).

8. A vehicle-mounted circulating drying device according to claim 7, characterized in that, The thickness of the first molecular sieve layer (3) accounts for one-tenth of the total height of the adsorption assembly.

9. A vehicle-mounted circulating drying device according to claim 7, characterized in that, The thickness of the silicone layer (5) accounts for five-tenths of the total height of the adsorption assembly.

10. A vehicle-mounted circulating drying device according to claim 7, characterized in that, The thickness of the second molecular sieve layer (10) accounts for four-tenths of the total height of the adsorption assembly.