Built-in heating type dryer and automobile air supply unit

Abstract

The utility model discloses a built-in heating type dryer and an automobile air supply unit, which comprise a shell, the interior of the shell is filled with a drying agent, the shell is provided with an air inlet and an air outlet, the shell is also provided with a built-in heating assembly inserted into the drying agent, and the air inlet and the air outlet are communicated with the built-in heating assembly. A heat dissipation component installed outside the built-in heating assembly is arranged in the drying agent, the heat dissipation component makes full contact with the drying agent, the drying agent in the shell can be fully heated by arranging the built-in heating assembly and the heat dissipation component, heat is dissipated into the drying agent through the heat dissipation component, particles of the drying agent are heated, and the drying effect is improved. Water absorbed by the drying agent particles is separated from the particles due to high temperature and is discharged out of the system through gas circulation, permanent reuse of the drying agent is achieved, and the regeneration effect is good.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive air supply units, specifically to a built-in heated dryer and an automotive air supply unit. Background Technology

[0002] Closed-loop air supply units for automobiles are gaining increasing attention from end-users due to their high inflation efficiency and short inflation time. Throughout the lifespan of a closed-loop air supply unit, the high-pressure gas inside is primarily circulated internally (from the air spring to the gas tank, or vice versa), with minimal direct inflation using external air – a characteristic of open-loop operation. However, in open-loop operation, moisture from the outside air immediately enters the system, making a dryer an indispensable component. In open-loop operation, the amount of desiccant used cannot be large enough to meet operating conditions and vehicle weight requirements, leading to a risk of dryer saturation. Once saturated, moisture enters the system, corroding easily rusted internal parts. Furthermore, the high internal pressure of the dryer makes sealing difficult, making its sealing design a significant challenge. Current market solutions primarily address this by placing the dryer near a heat source, such as the system's motor or air pump; or by using pressure swing adsorption (PSA) for regeneration. However, both methods have limited regeneration effectiveness. Some heating solutions suffer from inadequate sealing, resulting in reduced water absorption efficiency. Utility Model Content

[0003] This invention provides a built-in heated dryer and an automotive air supply unit, which can solve the problems of the risk of desiccant saturation in the dryer of existing air supply units and the limitations of existing regeneration methods that cannot meet the requirements.

[0004] To achieve the above objectives, in a first aspect, this utility model provides the following technical solution: a built-in heating dryer, comprising a shell, the interior of which is filled with a desiccant, an air inlet and an air outlet installed on the shell, and a built-in heating component inserted into the desiccant. A heat dissipation component is installed outside the built-in heating component within the desiccant, and the heat dissipation component is in full contact with the desiccant. By providing the built-in heating component and the heat dissipation component, the desiccant inside the shell can be fully heated, and heat is dissipated into the desiccant through the heat dissipation component, heating the desiccant particles. This causes the moisture absorbed by the desiccant particles to detach from the particles due to the high temperature, and simultaneously, through gas circulation, the moisture is discharged outside the system, achieving permanent reuse of the desiccant with good regeneration effect.

[0005] Preferably, the built-in heating assembly includes a heat-conducting outer shell located within the desiccant and a heating element disposed inside the heat-conducting outer shell. The first end of the heat-conducting outer shell is connected to the housing, and a terminal connector is provided on the outer side of the housing and inserted into the first end of the heat-conducting outer shell. The terminal connector is connected to the heating element via a connecting wire harness. The heat-conducting outer shell can transfer the heat generated by the heating element to the heat dissipation component. The terminal connector is waterproofly connected to the vehicle via a female end and transmits signals and the current required for heating.

[0006] Preferably, the heating element is positioned near the second end of the heat-conducting outer shell, and the heat dissipation component is sleeved on the outside of the heat-conducting outer shell near the second end. In this way, the heating element can be entirely within the range of the desiccant, allowing it to fully contact the heat dissipation component and resulting in good heat dissipation.

[0007] Preferably, the second end of the heat-conducting shell is filled with sealant to ensure the sealing of the second end of the heat-conducting shell, so that the connecting wire harness can be sealed smoothly.

[0008] Preferably, the outer side of the second end of the heat-conducting outer shell is provided with a threaded portion that connects to the shell, and a sealing ring is installed on the threaded portion. The threaded portion facilitates the fixed connection between the heat-conducting outer shell and the shell, and the sealing ring can play a sealing role.

[0009] Preferably, a temperature sensor connected to a terminal connector is installed at the second end of the thermally conductive housing, and the temperature sensor can monitor the temperature of the desiccant.

[0010] Preferably, the exterior of the housing is provided with connecting and mounting components, which include a first connecting seat located at the first end of the housing and a second connecting seat located at the second end of the housing, so as to facilitate the installation of the dryer into the air supply unit.

[0011] Preferably, the heat dissipation component includes a bushing sleeved on the outside of the heat-conducting shell and a plurality of fins arranged circumferentially around the bushing. The bushing can transfer the heat of the heat-conducting shell to the fins, and the fins can fully contact the desiccant, which can improve the speed of desiccant regeneration.

[0012] Preferably, a venting pad is installed at one end of the desiccant near the air inlet. One side of the venting pad is connected to one end of a compression spring, and an end cap is installed at the other end of the compression spring. The compression spring can apply pressure to the venting pad to compact the desiccant. After compaction, the desiccant can fully contact the heat dissipation components, thereby improving the regeneration efficiency.

[0013] Secondly, this utility model also includes an automotive air supply unit, comprising an integrated valve body and an ECU assembly disposed on one side of the integrated valve body. A booster pump assembly and a switching valve assembly are mounted on the integrated valve body. A drive motor matching the booster pump assembly is mounted on one side of the integrated valve body. As described in the first aspect, a built-in heated dryer is connected to the integrated valve body.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] With a simple structure, the desiccant inside the shell can be fully heated by the built-in heating component and heat dissipation component. The heat dissipation component dissipates heat into the desiccant, heating the desiccant particles. The moisture absorbed by the desiccant particles is desorbed due to the high temperature, and at the same time, it is discharged to the outside of the system through gas circulation, realizing the permanent reuse of the desiccant and good regeneration effect. Both the dryer and the built-in heating component are sealed, ensuring that no moisture enters the inside of the dryer under normal conditions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is the main view of the present invention.

[0018] Figure 3 This is a front sectional view of the present invention;

[0019] Figure 4 This is an assembly diagram of the built-in heating component and heat dissipation component of this utility model;

[0020] Figure 5 This is a cross-sectional view of the built-in heating component of this utility model.

[0021] Figure label:

[0022] 1. Housing; 11. Compression spring; 12. End cap; 13. Retaining ring; 2. Air inlet; 3. Built-in heating component; 31. Thermally conductive outer shell; 32. Terminal connector; 33. Temperature sensor; 34. Threaded part; 35. Connecting wire harness; 36. Heating element; 37. Sealing ring; 38. Sealant; 4. Connecting and mounting components; 41. First connecting seat; 42. Second connecting seat; 5. Air outlet; 6. Plastic pad; 7. Needle-punched felt; 8. Heat dissipation component; 81. Bushing; 82. Fin; 9. Desiccant; 10. Vent gasket. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] like Figure 1-5 As shown, this utility model addresses the risks of desiccant saturation in existing air supply unit dryers and the limitations of current regeneration methods, providing the following technical solution: A built-in heating dryer includes a housing 1 filled with desiccant 9. The housing 1 has an air inlet 2 and an air outlet 5. A built-in heating component 3 inserted into the desiccant 9 is also installed on the housing 1. A heat dissipation component 8, installed outside the built-in heating component 3, is disposed within the desiccant 9, ensuring full contact between the heat dissipation component 8 and the desiccant 9. By using the built-in heating component 3 and the heat dissipation component 8, the desiccant 9 within the housing 1 can be fully heated. Heat is dissipated into the desiccant through the heat dissipation component 8, heating the desiccant particles. This causes the moisture absorbed by the desiccant particles to detach from the particles due to high temperature. Simultaneously, through gas circulation, the moisture is discharged outside the system, achieving permanent reuse of the desiccant with excellent regeneration effect.

[0025] Specifically, the housing 1 is a one-piece design with good overall sealing. The heating element of the built-in heating component 3 is entirely located inside the desiccant 9 and will not heat other components of the dryer, only the desiccant 9. The dryer is connected to the air supply unit through the air inlet 2 and the air outlet 5 to dry the humid air entering the air supply unit. The heat dissipation component 8 needs to be made as large as possible while ensuring full contact with the desiccant 9 and the built-in heating component 3. An opening can be made in the side wall of the housing 1, and the built-in heating component 3 can be sealed to the opening.

[0026] In this embodiment, as Figure 4-5 As shown, the built-in heating component 3 includes a heat-conducting outer shell 31 located within the desiccant 9 and a heating element 36 disposed inside the heat-conducting outer shell 31. The first end of the heat-conducting outer shell 31 is connected to the housing 1, and a terminal connector 32 inserted into the first end of the heat-conducting outer shell 31 is provided on the outside of the housing 1. The terminal connector 32 is connected to the heating element 36 through a connecting wire harness 35. The heat-conducting outer shell 31 can transfer the heat generated by the heating element 36 to the heat dissipation component 8. The terminal connector 32 is waterproofly connected to the vehicle through a female end and transmits signals and the current required for heating. The heat-conducting outer shell 31 can be a high thermal conductivity metal shell with a tubular structure, and the heating element 36 can be a ceramic heating rod. The connecting wire harness 35 and the ceramic heating rod are welded together, resulting in high heating efficiency.

[0027] In this embodiment, as Figure 5As shown, the heating element 36 is positioned near the second end of the heat-conducting outer shell 31, and the heat dissipation component 8 is sleeved on the outside of the heat-conducting outer shell 31 near the second end. In this way, the heating element 36 can be entirely located within the range of the desiccant 9 and can fully contact the heat dissipation component 8, resulting in good heat dissipation.

[0028] In this embodiment, the second end of the heat-conducting outer shell 31 is filled with sealant 38, which can ensure the sealing of the second end of the heat-conducting outer shell 31, so that the connecting wire harness 35 can be sealed smoothly and prevent external water from entering the heat-conducting outer shell 31.

[0029] For ease of installation, the outer side of the second end of the heat-conducting outer shell 31 is provided with a threaded portion 34 that connects to the housing 1. A sealing ring 37 is installed on the threaded portion 34. The threaded portion 34 facilitates the fixed connection between the heat-conducting outer shell 31 and the housing 1, and the sealing ring 37 can play a sealing role.

[0030] In this embodiment, a temperature sensor 33 connected to a terminal connector 32 is installed at the second end of the heat-conducting outer shell 31. The temperature sensor 33 can monitor the temperature of the desiccant 9 and can come into contact with the external desiccant 9.

[0031] For ease of installation, the exterior of the housing 1 is provided with a connecting and mounting component 4. The connecting and mounting component 4 includes a first connecting seat 41 located at the first end of the housing 1 and a second connecting seat 42 located at the second end of the housing 1, which facilitates the installation of the dryer into the air supply unit. The first connecting seat 41 and the second connecting seat 42 can be respectively located on both sides of the housing 1, allowing for easy selection of either the first connecting seat 41 or the second connecting seat 42 to connect and install with the air supply unit. The first connecting seat 41 or the second connecting seat 42 is provided with connecting holes, which facilitates connection to the air supply unit by bolts.

[0032] like Figure 4 As shown, the heat dissipation component 8 includes a bushing 81 sleeved on the outside of the heat-conducting shell 31 and a plurality of fins 82 arranged around the bushing. The bushing 81 can transfer the heat of the heat-conducting shell 31 to the fins 82. The fins 82 are in full contact with the desiccant 9, which can improve the regeneration speed of the desiccant 9. The fins 82 are arranged radially, and the length of the fins 82 can be adjusted according to the internal space of the shell 1 to be as long as possible to cover the desiccant 9.

[0033] In this embodiment, a venting pad 10 is installed at one end of the desiccant 9 near the air inlet 2. One side of the venting pad 10 is connected to one end of a compression spring 11, and an end cap 12 is installed at the other end of the compression spring 11. The compression spring 11 can apply pressure to the venting pad 10 to compact the desiccant 9. After compaction, the desiccant 9 can fully contact the heat dissipation component 8, improving the regeneration efficiency. Figure 2 As shown, a retaining ring 13 can be embedded in the inner side wall of one end of the housing 1 to limit the end cap 12. A needle-punched felt 7 and a plastic pad 6 can be installed in sequence at the other end of the desiccant 9 to prevent the desiccant 9 from blocking the air outlet 5 and to ensure smooth air passage.

[0034] In this embodiment, the present invention also includes an automotive air supply unit, comprising an integrated valve body and an ECU assembly disposed on one side of the integrated valve body. A booster pump assembly and a switching valve assembly are mounted on the integrated valve body. A drive motor matching the booster pump assembly is mounted on one side of the integrated valve body. As described above, a built-in heated dryer is connected to the integrated valve body. The built-in heated dryer and the integrated valve body can be connected to form a circuit through an air pipe. Alternatively, the built-in heated dryer can be directly mounted on the integrated valve body and connected to the internal air passage of the integrated valve body.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A built-in heating dryer, comprising a housing (1), the interior of which is filled with a desiccant (9), and an air inlet (2) and an air outlet (5) mounted on the housing (1), characterized in that, The housing (1) is also equipped with a built-in heating component (3) inserted into the desiccant (9). The desiccant (9) is provided with a heat dissipation component (8) installed outside the built-in heating component (3). The heat dissipation component (8) is in full contact with the desiccant (9). The built-in heating component (3) includes a heat-conducting shell (31) located inside the desiccant (9) and a heating tube (36) disposed inside the heat-conducting shell (31). The first end of the heat-conducting shell (31) is connected to the housing (1), and a terminal plug (32) is provided on the outside of the housing (1) and inserted into the first end of the heat-conducting shell (31). The terminal plug (32) is connected to the heating tube (36) through a connecting wire harness (35).

2. The built-in heating dryer according to claim 1, characterized in that: The heating element (36) is located near the second end of the heat-conducting shell (31), and the heat dissipation component (8) is sleeved on the outside of the heat-conducting shell (31) near the second end.

3. The built-in heating dryer according to claim 1, characterized in that: The second end of the heat-conducting outer shell (31) is filled with sealant (38).

4. The built-in heating dryer according to claim 3, characterized in that: The outer side of the second end of the heat-conducting outer shell (31) is provided with a threaded part (34) connected to the shell (1), and a sealing ring (37) is installed on the threaded part (34).

5. The built-in heating dryer according to claim 3, characterized in that: A temperature sensor (33) connected to a terminal connector (32) is installed at the second end of the thermally conductive housing (31).

6. The built-in heating dryer according to claim 1, characterized in that: The outer side of the housing (1) is provided with a connecting and mounting component (4), which includes a first connecting seat (41) located at the first end of the housing (1) and a second connecting seat (42) located at the second end of the housing (1).

7. The built-in heating dryer according to claim 1, characterized in that: The heat dissipation component (8) includes a bushing (81) sleeved on the outside of the heat-conducting shell (31) and a number of fins (82) arranged around the bushing.

8. The built-in heating dryer according to claim 1, characterized in that: The desiccant (9) is fitted with a venting pad (10) at one end near the air inlet (2). One side of the venting pad (10) is connected to one end of the compression spring (11), and the other end of the compression spring (11) is fitted with an end cap (12).

9. An automotive air supply unit, characterized in that, The device includes an integrated valve body and an ECU assembly disposed on one side of the integrated valve body. A booster pump assembly and a switching valve assembly are mounted on the integrated valve body. A drive motor matching the booster pump assembly is mounted on one side of the integrated valve body. The built-in heated dryer as described in any one of claims 1-8 is connected to the integrated valve body.

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