Ventilation device, ventilation system and motor home

Abstract

The ventilation device is connected to a carriage body, at least one ventilation opening is formed in the carriage body, the ventilation device comprises a shell and a filtering assembly, the shell is arranged opposite to the ventilation opening, the shell is provided with a ventilation channel communicated with the ventilation opening, the filtering assembly comprises two filtering pieces, and the two filtering pieces are arranged on the shell. The two filtering pieces are oppositely arranged on the two sides of the ventilation channel and can slide relative to the inner side wall of the shell, the two filtering pieces are in sealed connection with the inner side wall of the shell correspondingly, driving cavities are formed by the two filtering pieces and the inner side wall of the shell correspondingly, the size of the driving cavities can be increased or decreased, and the driving cavities are used for driving the two filtering pieces to slide close to each other or away from each other; the ventilation channel is opened or closed. The dustproof ventilation device can effectively solve the problem that the dustproof effect of the ventilation device is poor due to the fact that small dust and gravels cannot be prevented from entering the compartment body along the gaps of the louvre blades due to the fact that the gaps of the louvre blades are large when the louvre blades are opened.

Description

Technical Field

[0001] The utility model relates to the technical field of RVs, and particularly to a ventilation device, a ventilation system and an RV. Background Art

[0002] Generally, a ventilation system is provided on a vehicle to realize the circulation of air between the interior of the vehicle and the external environment.

[0003] For example, the Chinese utility model patent with the application number: CN202021027638.1 and the name: A ventilation and dust-proof structure and a hydrogen energy power generation vehicle with this structure. The ventilation and dust-proof structure includes a compartment body and compartment doors symmetrically arranged on both sides of the compartment body. Windows are opened on the compartment doors, and louvers are installed in the windows. The louvers include louver blades and louver rods. The louver blades are horizontally rotatably connected in the windows through the louver rods. A driving motor is installed inside the compartment door, and the driving motor is connected to the louver rod through a linkage component. By driving the louver rod to drive the louver blades to swing, the opening and closing of the louvers are controlled. This device exchanges gas between the interior of the compartment and the outside, and at the same time can significantly reduce the entry of foreign objects from the outside. The hydrogen energy power generation vehicle with this ventilation and dust-proof structure can reduce the entry of foreign objects into the compartment and ensure the smooth progress of the power generation work. However, when the louver blades are opened, the gaps are relatively large, and fine dust and sand still enter the compartment body along the gaps of the louver blades, resulting in poor dust-proof effect.

[0004] Therefore, there is an urgent need for a ventilation device, a ventilation system and an RV to solve the problem in the prior art that due to the large gaps when the louver blades are opened, fine dust and sand cannot be blocked from entering the compartment body along the gaps of the louver blades, resulting in poor dust-proof effect of the ventilation device. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a ventilation device, a ventilation system and an RV to solve the technical problem that in the prior art, due to the large gaps when the louver blades are opened, fine dust and sand cannot be blocked from entering the compartment body along the gaps of the louver blades, resulting in poor dust-proof effect of the ventilation device.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the utility model provides a ventilation device connected to a compartment body of a vehicle. At least one ventilation opening is provided on the compartment body of the vehicle, including:

[0008] A housing, arranged opposite to the ventilation opening and connected to the compartment body, and a ventilation channel communicating with the ventilation opening is provided on the housing; and

[0009] The filtering component includes two filtering elements. The two filtering elements are oppositely arranged on both sides of the ventilation channel and can slide relative to the inner side wall of the housing. The two filtering elements are hermetically connected to the inner side wall of the housing respectively, and driving chambers are formed between the two filtering elements and the inner side wall of the housing respectively, for driving the two filtering elements to slide closer to or away from each other to open or close the ventilation channel.

[0010] In some embodiments, the filtering element includes a sliding block and a plurality of brushes. The two sliding blocks are arranged at intervals oppositely and are respectively slidably connected to both sides of the ventilation channel. The plurality of brushes are arranged oppositely and are respectively connected to the opposite sides of the two sliding blocks, and the two opposite brushes can abut against each other to close the ventilation channel.

[0011] In some embodiments, the plurality of brushes are evenly distributed along the length direction of the sliding block and are inclined to the sliding block, and an included angle is formed between the extending direction of the brush and the sliding block.

[0012] In some embodiments, the size of the included angle is 60°.

[0013] In some embodiments, the filtering component further includes two connecting pieces. The connecting pieces are arranged corresponding to the sliding blocks one by one. One end of the connecting piece is connected to the inner wall of the housing and the other end is connected to the sliding block. The driving chamber is formed inside the connecting piece, and a pressure difference is formed between the driving chamber and the ventilation channel for driving the sliding block and the brush to slide relative to the inner wall of the housing.

[0014] In some embodiments, the ventilation channel can let in or discharge gas, so that a pressure difference is formed between the driving chamber and the ventilation channel, and the volume of the driving chamber is increased or decreased.

[0015] In some embodiments, the connecting piece has elasticity.

[0016] In some embodiments, a corrugated connecting part is formed on the side wall of the driving chamber, and the length of the corrugated connecting part is adjustable.

[0017] In a second aspect, the present invention further provides a ventilation system, including an air pump and a plurality of ventilation devices as described above.

[0018] In a third aspect, the present invention further provides a motorhome, including a carriage body, an air pump and the ventilation system.

[0019] Compared with the prior art, the beneficial effects of the ventilation device provided by the present utility model include: the housing is arranged relative to the ventilation opening on the carriage body, and the housing is provided with a ventilation channel communicated with the ventilation opening. Two filter elements are oppositely arranged on both sides of the ventilation channel and can slide relative to the inner side wall of the housing. A driving cavity is formed between the two filter elements and the inner side wall of the housing, which is used to drive the two filter elements to slide closer to or away from each other, so as to open or close the ventilation channel. Compared with the prior art, by arranging two filter elements that can slide closer to or away from each other in the ventilation channel, under the drive of the driving cavity, the two filter elements slide closer to each other and close the ventilation channel, so that fine dust and sand are blocked by the filter elements when passing through the ventilation channel. Under the drive of the driving cavity, the two filter elements slide away from each other and open the ventilation channel, and the gas inside the carriage body can freely pass through the ventilation channel, which can form a blocking effect on fine dust and sand, and can solve the technical problem that in the prior art, due to the large gap when the louver is opened, fine dust and sand cannot be blocked from entering the carriage body along the gap of the louver, resulting in poor dust-proof effect of the ventilation device. Description of the Drawings

[0020] Figure 1 is a schematic cross-sectional structure view of the ventilation device provided by an embodiment of the present utility model in a state;

[0021] Figure 2 is a schematic structure view of the ventilation device provided by an embodiment of the present utility model in a state;

[0022] Figure 3 is a schematic cross-sectional structure view of the ventilation device provided by an embodiment of the present utility model in another state;

[0023] Figure 4 is a schematic structure view of the ventilation device provided by an embodiment of the present utility model in another state.

[0024] Description of the Reference Numerals:

[0025] Housing 1;

[0026] Ventilation Channel 11;

[0027] Filter Assembly 2;

[0028] Filter Element 21;

[0029] Slider 211;

[0030] Brush 212;

[0031] Connecting Piece 22;

[0032] Driving Cavity 23;

[0033] Corrugated Connecting Portion 24. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] In order to solve the technical problem in the prior art that the gap is large when the louver blades are opened, and small dust and sand cannot be blocked from entering the compartment along the gaps of the louver blades, resulting in poor dust prevention effect of the ventilation device, the present utility model provides a ventilation device, a ventilation system and a motorhome, which can realize that under the drive of the drive cavity 23, the two filter elements 21 slide close to each other and close the ventilation channel 11, so that small dust and sand are blocked by the filter elements 21 when passing through the ventilation channel 11. Under the drive of the drive cavity 23, the two filter elements 21 slide away from each other and open the ventilation channel 11, and the gas inside the compartment of the vehicle body can freely pass through the ventilation channel 11, and a blocking effect on small dust and sand can be formed.

[0036] It should be noted that the ventilation device, the ventilation system and the motorhome described in the present utility model are used in but not limited to the technical field of motorhomes. For the convenience of description, in the present utility model, only the case where the ventilation device, the ventilation system and the motorhome are applied to the technical field of motorhomes is taken as an example for description, and the principles of the ventilation device, the ventilation system and the motorhome applied to other types of equipment are substantially the same as those applied to the technical field of motorhomes, and will not be elaborated here one by one.

[0037] Please refer to Figure 1 、 Figure 3 , Figure 1 which is a schematic structural diagram of a ventilation device, a ventilation system and a motorhome in an embodiment of the present utility model. The ventilation device is connected to the compartment of the vehicle body. The compartment of the vehicle body is provided with at least one ventilation opening, including a housing 1 and a filter assembly 2. The housing 1 is arranged opposite to the ventilation opening and is connected to the compartment of the vehicle body. The housing 1 is provided with a ventilation channel 11 communicating with the ventilation opening. The filter assembly 2 includes two filter elements 21. The two filter elements 21 are arranged opposite to each other on both sides of the ventilation channel 11 and can slide relative to the inner side wall of the housing 1. The two filter elements 21 are hermetically connected to the inner side wall of the housing 1 respectively, and a drive cavity 23 is formed between the two filter elements 21 and the inner side wall of the housing 1 respectively, which is used to drive the two filter elements 21 to slide close to or away from each other to open or close the ventilation channel 11.

[0038] In this device, the housing 1 is arranged opposite to the ventilation opening on the carriage body, and the housing 1 is provided with a ventilation passage 11 communicating with the ventilation opening. Two filter elements 21 are oppositely arranged on both sides of the ventilation passage 11 and can slide relative to the inner wall of the housing 1. A driving cavity 23 is formed between the two filter elements 21 and the inner wall of the housing 1, which is used to drive the two filter elements 21 to slide closer to or away from each other, so as to open or close the ventilation passage 11.

[0039] Compared with the prior art, by arranging two filter elements 21 that can slide closer to or away from each other in the ventilation passage 11, under the drive of the driving cavity 23, the two filter elements 21 slide closer to each other and close the ventilation passage 11, so that fine dust and sand are blocked by the filter elements 21 when passing through the ventilation passage 11. Under the drive of the driving cavity 23, the two filter elements 21 slide away from each other and open the ventilation passage 11, and the gas inside the carriage body can freely pass through the ventilation passage 11, which can form a blocking effect on fine dust and sand, and can solve the technical problem in the prior art that the large gap when the louver is opened cannot block fine dust and sand from entering the carriage body along the gap of the louver, resulting in poor dust-proof effect of the ventilation device.

[0040] Furthermore, in this device, the housing 1 is a hollow housing 1, and the housing 1 is provided with ventilation holes communicating with its interior to form the ventilation passage 11. The two filter elements 21 are both slidably connected to the housing 1 to realize the opening or closing of the ventilation passage 11, which will not be elaborated here too much.

[0041] In this embodiment, the filter element 21 includes sliding blocks 211 and a plurality of brushes 212. The two sliding blocks 211 are arranged oppositely at intervals and are respectively slidably connected to both sides of the ventilation passage 11. The plurality of brushes 212 are oppositely arranged and are respectively connected to the opposite sides of the two sliding blocks 211, and the two opposite brushes 212 can abut against each other to close the ventilation passage 11.

[0042] The sliding blocks 211 play a role in connecting and supporting between the plurality of brushes 212 and the housing 1, so that the brushes 212 on both sides of the ventilation passage 11 can approach or move away from each other.

[0043] Specifically, a sliding seal connection structure similar to a piston is formed between the inner wall of the housing 1 and the sliding blocks 211 in this device, which will not be elaborated here too much.

[0044] In one of the embodiments, please refer to Figures 1 to 4 , the plurality of brushes 212 are evenly distributed along the length direction of the sliding block 211, are arranged obliquely to the sliding block 211, and an included angle is formed between the extending direction of the brush 212 and the sliding block 211.

[0045] The brush 212 cleaning slider 211 is arranged such that the contact area between the two brushes 212 when they abut against each other is increased, avoiding mutual damage and improving the stability of the device.

[0046] As a preferred embodiment, the size of the included angle is 60°.

[0047] Specifically, the distance between two adjacent brushes 212 in this device can be specifically adjusted according to the usage situation, and the inclination angle between the brush 212 and the slider 211 can also be specifically adjusted according to the usage situation, so as to achieve the best filtering and dust removal effect, which will not be elaborated here too much.

[0048] In this embodiment, the filtering component 2 further includes two connecting pieces 22. The connecting pieces 22 are arranged in one-to-one correspondence with the sliders 211. One end of the connecting piece 22 is connected to the inner wall of the housing 1, and the other end is connected to the slider 211. A driving cavity 23 is formed inside the connecting piece 22. A pressure difference is formed between the driving cavity 23 and the ventilation channel 11 for driving the slider 211 and the brush 212 to slide relative to the inner wall of the housing 1.

[0049] The slider 211 is connected to the inner wall of the housing 1 through the connecting piece 22, and a driving cavity 23 is formed inside the connecting piece 22. During use, whether gas is introduced into or discharged from the ventilation channel 11, there will be a pressure difference between the driving cavity 23 and the ventilation channel 11. Due to the existence of the pressure difference, the slider 211 can slide relative to the housing 1.

[0050] In this embodiment, the ventilation channel 11 can introduce or discharge gas to form a pressure difference between the driving cavity 23 and the ventilation channel 11 and drive the volume of the driving cavity to increase or decrease.

[0051] As Figure 1 shown, when the air flow enters the interior of the carriage body along the ABC channel, the pressures at B and C are smaller than those at A, D, and E. Under the action of the external pressure, the brush 212 and the slider 211 move closer to the midline, and the hairs on the upper and lower brushes 212 are interlaced to form a filtering channel, playing a filtering role; as Figure 3 shown, when the air flow exhausts outward along the CBA channel, the pressure at B is larger than those at A, D, and E. Under the action of the pressure at B, the driving cavity 23 pushes the brush 212 and the slider 211 to expand outward from the midline, the hairs on the upper and lower brushes 212 move away from each other, the ventilation channel 11 is opened, and at the same time, the dust accumulated on the surface of the brush 212 is blown out.

[0052] In one of the embodiments, the connecting piece 22 is elastic.

[0053] The elastic connecting member 22 can provide conditions for the deformation of the driving cavity 23 and automatically reset after driving the driving cavity 23 to deform.

[0054] Specifically, in this device, the connecting member 22 is a rubber diaphragm. Here, the rubber diaphragm is a common and easily purchasable device in the market, which is a conventional setting well-known to those skilled in the art and will not be elaborated further.

[0055] In one embodiment, please refer to Figure 1 、 Figure 3 , a corrugated connecting portion 24 is formed on the side wall of the driving cavity 23, and the length of the corrugated connecting portion 24 is adjustable.

[0056] The adjustable length of the corrugated connecting portion 24 can provide conditions for the deformation of the driving cavity 23 and is used to improve the stability of the device.

[0057] The present utility model also provides a ventilation system, which includes an air pump and a plurality of ventilation devices.

[0058] By providing an air pump, gas can be introduced into or discharged from the ventilation passage 11, so as to form a pressure difference between the driving cavity 23 and the ventilation passage 11 and realize the gas exchange between the interior of the carriage body and the external environment.

[0059] The present utility model also provides a motorhome, which includes a carriage body, an air pump and a ventilation system.

[0060] For a better understanding of the present utility model, the following will Figures 1 to 4 detail the technical solutions of the present utility model:

[0061] The specific working process of the present utility model is as follows: The housing 1 is arranged opposite to the ventilation opening on the carriage body, and the housing 1 is provided with a ventilation passage 11 communicating with the ventilation opening. Two filter elements 21 are oppositely arranged on both sides of the ventilation passage 11 and can slide relative to the inner side wall of the housing 1. A driving cavity 23 is formed between the two filter elements 21 and the inner side wall of the housing 1, which is used to drive the two filter elements 21 to slide closer to or away from each other to open or close the ventilation passage 11. Compared with the prior art, by arranging two filter elements 21 that can slide closer to or away from each other in the ventilation passage 11, under the drive of the driving cavity 23, the two filter elements 21 slide closer to each other and close the ventilation passage 11, so that fine dust and sand are blocked by the filter elements 21 when passing through the ventilation passage 11. Under the drive of the driving cavity 23, the two filter elements 21 slide away from each other and open the ventilation passage 11, and the gas inside the carriage body can freely pass through the ventilation passage 11, which can form a blocking effect on fine dust and sand.

[0062] During use, when the airflow enters the interior of the carriage body along the ABC passage, the pressures at B and C are lower than those at A, D, and E. Under the action of the external pressure, the brush 212 and the sliding block 211 move closer to the midline, and the hairs on the upper and lower brushes 212 cross each other to form a filtering passage, playing a filtering role. As shown in the figure, when the airflow exhausts outward along the CBA passage, the pressure at B is higher than those at A, D, and E. Under the action of the pressure at B, the driving cavity 23 pushes the brush 212 and the sliding block 211 to expand outward from the midline, and the hairs on the upper and lower brushes 212 move away from each other, and the ventilation passage 11 is opened. At the same time, the dust accumulated on the surface of the brush 212 is blown out.

[0063] Furthermore, the ventilation passage 11 is opened or closed by using the filtering component 2, enabling the gas inside the carriage body to freely pass through the ventilation passage 11, and forming a blocking effect on fine dust and sand.

[0064] Through the above structure, the present device can solve the technical problem in the prior art that the large gaps when the louvers are opened cannot block fine dust and sand from entering the carriage body along the gaps of the louvers, resulting in poor dust prevention effect of the ventilation device.

[0065] The specific embodiments of the present utility model described above do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An air exchange device is connected to the carriage body, and at least one air exchange opening is provided on the carriage body, characterized in that, Comprising: A housing, arranged opposite to the ventilation opening, and a ventilation passage communicating with the ventilation opening is formed in the housing; And A filter assembly, including two filter elements, the two filter elements are arranged opposite to each other on both sides of the ventilation passage and can slide relative to the inner side wall of the housing. The two filter elements are hermetically connected to the inner side wall of the housing respectively, and drive chambers are formed between the two filter elements and the inner side wall of the housing respectively. The volume of the drive chamber can be increased or decreased to drive the two filter elements to slide closer to or away from each other to open or close the ventilation passage.

2. The air exchange device according to claim 1, characterized in that, The filter element includes a sliding block and a plurality of brushes. The two sliding blocks are arranged opposite to each other at intervals and are respectively slidably connected to both sides of the ventilation passage. The plurality of brushes are arranged opposite to each other and are respectively connected to the opposite sides of the two sliding blocks, and the two opposite brushes can abut against each other to close the ventilation passage.

3. The ventilation device according to claim 2, characterized in that, The plurality of brushes are evenly distributed along the length direction of the sliding block and are arranged obliquely to the sliding block, and an included angle is formed between the extending direction of the brush and the sliding block.

4. The air exchange device according to claim 3, wherein The size of the included angle is 60°.

5. The ventilation device according to claim 4, characterized in that, The filter assembly further includes two connecting members, the connecting members are arranged corresponding to the sliding blocks one by one. One end of the connecting member is connected to the inner wall of the housing, and the other end is connected to the sliding block. The drive chamber is formed inside the connecting member, and a pressure difference is formed between the drive chamber and the ventilation passage to drive the sliding block and the brush to slide relative to the inner wall of the housing.

6. The ventilation device according to claim 5, characterized in that The ventilation passage can let in or discharge gas to form the pressure difference between the drive chamber and the ventilation passage and drive the volume of the drive chamber to increase or decrease.

7. The ventilation device according to claim 6, characterized in that The connecting member has elasticity.

8. The air change device according to claim 7, characterized in that A corrugated connecting portion is formed on the side wall of the drive chamber, and the length of the corrugated connecting portion is adjustable.

9. An air exchange system, characterized in that, Comprising an air pump and a plurality of ventilation devices according to any one of claims 1-8.

10. A motorhome, characterized in that, Comprising a carriage body, an air pump and a ventilation system according to claim 9.

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