Double-sided independent fan

Abstract

The application discloses double-sided independent distribution fans, comprising a mounting shell, the mounting shell comprising a first mounting space and a second mounting space arranged in layers, the first mounting space and the second mounting space being respectively provided with a first fan assembly and a second fan assembly; a control circuit board is located between the first fan assembly and the second fan assembly, and has a first face side and a second face side away from each other, the first face side being electrically connected with the first fan assembly and the first fan assembly, and the second face side being electrically connected with the second fan assembly and the second fan assembly; the first fan assembly and the second fan assembly both have a first state and a second state, when the control circuit board controls the first fan assembly to be in the first state, the second fan assembly is in the second state, when the control circuit board controls the second fan assembly to be in the first state, the first fan assembly is in the second state, so that the device can select the air suction and blowing modes according to actual needs, and the human body is prevented from being uncomfortable.

Description

Technical Field

[0001] This disclosure relates to the field of automotive parts technology, specifically to dual-sided independent split fans. Background Technology

[0002] With the advancement of technology in the vehicle transportation sector, people have increasingly higher demands for vehicle ride comfort. Because the human body is in close contact with the seat, poor air circulation hinders the evaporation of sweat, causing discomfort. Ventilation functions effectively improve airflow between the human body and the seat, keeping the body dry and comfortable.

[0003] In existing technologies, ventilation functions are usually integrated into seats, using ventilation mechanisms to blow air onto the seat surface or draw air from the seat surface to achieve cooling and air circulation. However, the blowing method tends to blow cold, humid air onto the body, which can cause discomfort in the lower back after prolonged use; the drawing method has lower cooling efficiency and takes longer to achieve the cooling effect, and a seat using only a single fan can only choose between blowing and drawing modes. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a dual-sided independent split fan.

[0005] Firstly, this application provides a dual-sided independently operated fan, including:

[0006] The mounting housing has a first mounting space and a second mounting space stacked inside. A first fan assembly is disposed in the first mounting space and a second fan assembly is disposed in the second mounting space. Both the first fan assembly and the second fan assembly have a first state and a second state.

[0007] A control circuit board is disposed between the first fan assembly and the second fan assembly. The control circuit board has a first side and a second side that are far apart from each other. The first side corresponds to the first fan assembly and is electrically connected to the first fan assembly, and the second side corresponds to the second fan assembly and is electrically connected to the second fan assembly. The control circuit board is used to control the first fan assembly or the second fan assembly respectively, so that when the first fan assembly is in the first state, the second fan assembly is in the second state, or when the first fan assembly is in the first state, the second fan assembly is in the second state.

[0008] According to the technical solution provided in the embodiments of this application, the mounting shell includes a first cover, a second cover, and a connecting shell. The connecting shell is disposed between the first cover and the second cover, dividing the space inside the mounting shell into a first mounting space and a second mounting space. The first mounting space is formed between the first cover and the connecting shell, and the second mounting space is formed between the second cover and the connecting shell. The first mounting space is provided with a first opening communicating with it in the circumferential direction, and the second mounting space is provided with a second opening communicating with it in the circumferential direction.

[0009] According to the technical solution provided in the embodiments of this application, the first fan assembly includes a first motor and a first impeller, the first motor has a first output shaft, and the first impeller and the first output shaft are coaxially and fixedly connected.

[0010] The first impeller forms a first ventilation space inside, and the first impeller is evenly provided with a plurality of first air inlets and outlets that communicate with the first ventilation space. The first impeller is provided with a second air inlet and outlet that communicates with the first ventilation space on the side near the first output shaft.

[0011] According to the technical solution provided in the embodiments of this application, the second fan assembly includes a second motor and a second impeller, the second motor has a second output shaft, and the second impeller and the second output shaft are coaxially and fixedly connected.

[0012] The second impeller forms a second ventilation space inside. The second impeller has several third air inlets and outlets that are evenly distributed around its circumference and communicate with the second ventilation space. The second impeller also has a fourth air inlet and outlet that communicates with the second ventilation space on the side near the second output shaft.

[0013] According to the technical solution provided in the embodiments of this application, a through hole is provided on the connecting housing to allow airflow to pass through.

[0014] According to the technical solution provided in the embodiments of this application, the connecting shell includes a first connecting plate and a second connecting plate arranged in a row, wherein the first connecting plate is close to the first cover, the second connecting plate is close to the second cover, and the through hole penetrates the first connecting plate and the second connecting plate.

[0015] According to the technical solution provided in the embodiments of this application, the connecting shell is an integral structure, which includes a third connecting plate, and the through hole penetrates the third connecting plate.

[0016] According to the technical solution provided in the embodiments of this application, when the first fan assembly is in the first state, the second fan assembly is in the second state, the first motor drives the first impeller to rotate, and the airflow enters the second ventilation space from the third air inlet and outlet, passes through the fourth air inlet and outlet, the through hole and the second air inlet and outlet in sequence, enters the first ventilation space, and is discharged from the first air inlet and outlet.

[0017] When the second fan assembly is in the first state, the first fan assembly is in the second state. The second motor drives the second impeller to rotate. The airflow enters the first ventilation space from the first air inlet and outlet, passes through the second air inlet and outlet, the through hole and the fourth air inlet and outlet in sequence, enters the second distribution space, and is discharged from the third air inlet and outlet.

[0018] According to the technical solution provided in the embodiments of this application, the first fan assembly and the second fan assembly are coaxially arranged or staggered.

[0019] According to the technical solution provided in the embodiments of this application, at least one of the dimensions of the first impeller and the second impeller, the length and thickness of the blades of the first impeller and the second impeller, and the tilt angle are different.

[0020] In summary, this technical solution specifically discloses a dual-sided independent split fan, including a mounting housing. The mounting housing includes a first mounting space and a second mounting space stacked together. A first fan assembly is disposed in the first mounting space, and a second fan assembly is disposed in the second mounting space. A control circuit board is disposed inside the mounting housing, located between the first fan assembly and the second fan assembly. The control circuit board has a first side and a second side that are far apart from each other. The first side corresponds to and is electrically connected to the first fan assembly, and the second side corresponds to and is electrically connected to the second fan assembly. Both the first fan assembly and the second fan assembly have a first state and a second state. When the control circuit board controls the first fan assembly to be in the first state, the second fan assembly is in the second state; when the control circuit board controls the second fan assembly to be in the first state, the first fan assembly is in the second state.

[0021] The first and second fan assemblies are controlled separately via a control circuit board. Compared with the single mode selection of a single fan in the prior art, this device can select between suction and blowing as needed, avoiding discomfort to the human body. Attached Figure Description

[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the first fan assembly in its first state.

[0024] Figure 2 This is a schematic diagram of the second fan assembly in its first state.

[0025] Figure 3 This is a schematic diagram of a dual-sided independent split fan.

[0026] Figure 4 This is an exploded view of a dual-sided independent split fan.

[0027] Figure 5 This is a schematic diagram of the first motor and the second motor.

[0028] Figure 6 This is a schematic diagram of a dual-sided independent split-drive fan where the first and second motors are ordinary motors.

[0029] Figure 7 This is a schematic diagram showing the first and second impellers installed in reverse configuration.

[0030] Figure 8 This is a schematic diagram of a split-type structure for connecting the housing.

[0031] The following are the labeling elements in the diagram: 1. Mounting housing; 2. First fan assembly; 3. Second fan assembly; 4. Control circuit board; 5. First cover; 6. Second cover; 7. Connecting housing; 8. First opening; 9. Second opening; 10. First impeller; 11. First output shaft; 12. First air inlet / outlet; 13. Second air inlet / outlet; 14. Second impeller; 15. Second output shaft; 16. Third air inlet / outlet; 17. Fourth air inlet / outlet; 18. Through hole; 19. First connecting plate; 20. Second connecting plate; 21. Third connecting plate; 22. First motor; 23. Second motor. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Example 1

[0035] Please refer to Figures 1 to 8 The dual-sided independent split fan shown includes:

[0036] Mounting housing 1, the interior of mounting housing 1 has a first mounting space and a second mounting space stacked in a first direction; the first direction is the vertical direction in the figure.

[0037] The mounting shell 1 includes a first cover 5, a second cover 6, and a connecting shell 7. The connecting shell 7 is disposed between the first cover 5 and the second cover 6, dividing the internal space of the mounting shell 1 into a first mounting space and a second mounting space. The first mounting space is formed between the first cover 5 and the connecting shell 7, and the second mounting space is formed between the second cover 6 and the mounting shell 1.

[0038] Further, optionally, such as Figure 8 As shown, the connecting housing 7 can be a split structure, which includes a first connecting plate 19 and a second connecting plate 20 arranged in a row. The first connecting plate 19 is close to the first cover 5, and the second connecting plate 20 is close to the second cover 6. A first installation space is formed between the first connecting plate 19 and the first cover 5, and a second installation space is formed between the second connecting plate 20 and the second cover 6.

[0039] A first fan assembly 2 is provided in the first installation space, and a second fan assembly 3 is provided in the second installation space; both the first fan assembly 2 and the second fan assembly 3 have a first state and a second state.

[0040] Furthermore, the first fan assembly 2 includes a first motor 22 and a first impeller 10. The first motor 22 has a first output shaft 11, and the first impeller 10 and the first output shaft 11 are coaxially fixedly connected.

[0041] Driven by the first motor 22, the first output shaft 11 is rotated, thereby driving the first impeller 10 to rotate.

[0042] Furthermore, the first installation space is provided with a first opening 8 communicating with it in the circumferential direction, the first impeller 10 forms a first ventilation space inside, the first impeller 10 is provided with a plurality of first air inlets and outlets 12 communicating with the first ventilation space in the circumferential direction, and the first impeller 10 is provided with a second air inlet and outlet 13 communicating with the first ventilation space on the side near the first output shaft 11, and the second air inlet and outlet 13 is communicating with the first installation space.

[0043] Furthermore, the second fan assembly 3 includes a second motor 23 and a second impeller 14. The second motor 23 has a second output shaft 15, and the second impeller 14 and the second output shaft 15 are coaxially and fixedly connected.

[0044] Driven by the second motor 23, the second output shaft 15 rotates, thereby driving the second impeller 14 to rotate.

[0045] Furthermore, the second installation space is provided with a second opening 9 communicating with it in the circumferential direction, the second impeller 14 forms a second ventilation space inside, the second impeller 14 is provided with a plurality of third air inlets and outlets 16 communicating with the second ventilation space in the circumferential direction, and the second impeller 14 is provided with a fourth air inlet and outlet 17 communicating with the second ventilation space on the side of the second impeller 14 near the second output shaft 15, and the fourth air inlet and outlet 17 is communicating with the second installation space.

[0046] It should be noted that, as Figure 1 and Figure 2 As shown, the first air inlet / outlet 12 and the third air inlet / outlet 16 are arranged close to each other in the first direction, that is, the first impeller 10 and the second impeller 14 are in the upright position.

[0047] When the first fan assembly 2 is in the first state, the first motor 22 drives the first impeller 10 to rotate. At this time, the second fan assembly 3 is in the second state, and the second motor 23 does not work.

[0048] When the second fan assembly 3 is in the first state, the second motor 23 drives the second impeller 14 to rotate. At this time, the first fan assembly 2 is in the second state and the first motor 22 does not work.

[0049] Furthermore, a through hole 18 is provided on the connecting housing 7 to allow airflow to pass through;

[0050] Therefore, when the first fan assembly 2 is in the first state, the first motor 22 drives the first impeller 10 to rotate, the second motor 23 does not work, so the outside airflow enters the second ventilation space through the third air inlet and outlet 16, then enters the second installation space through the fourth air inlet and outlet 17, enters the first installation space through the through hole 18, then enters the first ventilation space through the second air inlet and outlet 13, and finally is discharged to the outside through the first air inlet and outlet 12.

[0051] When the second fan assembly 3 is in the first state, the second motor 23 drives the second impeller 14 to rotate, and the first motor 22 does not work. As a result, the outside airflow enters the first ventilation space through the first air inlet and outlet 12, then enters the first installation space through the second air inlet and outlet 13, enters the second installation space through the through hole 18, then enters the second ventilation space through the fourth air inlet and outlet 17, and is then discharged to the outside through the third air inlet and outlet 16.

[0052] It should be noted that when the first fan assembly 2 and the second fan assembly 3 are in the first state, the second impeller 14 and the first impeller 10 may rotate under the influence of airflow.

[0053] It should be noted that, optionally, the first motor 22 and the second motor 23 can be coreless motors or ordinary motors.

[0054] The control circuit board 4 is located between the first fan assembly 2 and the second fan assembly 3. Optionally, the control circuit board 4 can be located in the first mounting space or in the second mounting space.

[0055] Furthermore, the control circuit board 4 has a first side and a second side that are far apart from each other. The first side corresponds to and is electrically connected to the first fan assembly 2, and the second side corresponds to and is electrically connected to the second fan assembly 3. The control circuit board 4 is used to control the first fan assembly 2 or the second fan assembly 3 respectively, so that when the first fan assembly 2 is in the first state, the second fan assembly is in the second state, or when the first fan assembly 2 is in the first state, the second fan assembly 3 is in the second state.

[0056] Optionally, such as Figures 1 to 4 As shown, the connecting housing 7 can be an integral structure, which includes a third connecting plate 21;

[0057] Furthermore, when the connecting housing 7 is an integral structure, the control circuit board 4 is disposed on the third connecting plate 21, and the first side and the second side are respectively used to control the first fan assembly 2 and the second fan assembly 3;

[0058] Further, optionally, such as Figure 1 and Figure 2 As shown, the first air inlet / outlet 12 and the third air inlet / outlet 16 are arranged close to each other in the first direction. In order to achieve airflow, a second air inlet / outlet 13 is opened on the side of the first impeller 10 near the first output shaft 11, and a fourth air inlet / outlet 17 is opened on the side of the second impeller 14 near the second output shaft 15.

[0059] Therefore, when the first fan assembly 2 is in the first state, the outside airflow is drawn in through the second opening 9, and then passes through the third air inlet / outlet 16, the fourth air inlet / outlet 17, the through hole 18, the second air inlet / outlet 13 and the first air inlet / outlet 12 in sequence, and is blown out through the first opening 8. Figure 1 The direction of the middle arrow indicates the direction of airflow;

[0060] When the second fan assembly 4 is in the first state, the outside airflow is drawn in through the first opening 8, and then sequentially passes through the first air inlet / outlet 12, the second air inlet / outlet 13, the through hole 18, the fourth air inlet / outlet 17 and the third air inlet / outlet 16, and is blown out through the second opening 9. Figure 2 The direction of the middle arrow indicates the direction of airflow;

[0061] Optionally, such as Figure 7 As shown, the first air inlet / outlet 12 and the third air inlet / outlet 16 are positioned far apart in the first direction. At this time, the first impeller 10 and the second impeller 14 are compared... Figure 1Since it is a reverse installation, there is no need to open a second air inlet / outlet 13 and a fourth air inlet / outlet 17;

[0062] Therefore, when the first fan assembly 2 or the second fan assembly 3 is in the first state, the airflow passes through the first air inlet / outlet 12 or the second air inlet / outlet 13 and then directly through the through hole 18 to achieve ventilation.

[0063] It should be noted that, as Figure 7 The reverse-mounted first impeller 10 and second impeller 14 shown can also be installed on the hollow cup motor. The reverse-mounted first impeller 10 and second impeller 14 can make the airflow path smoother, so that the blowing and suction effects of the first fan assembly 2 and the second fan assembly 3 are better.

[0064] It should be noted that the first impeller 10 and the second impeller 14 are different, which can be that the first impeller 10 and the second impeller 14 are different in size or shape, that is, the length, thickness, and tilt angle of the blades of the first impeller 10 and the second impeller 14 are different in at least one aspect.

[0065] Working principle: This device is installed in a car seat and controls the first fan assembly 2 and the second fan assembly 3 separately through the control circuit board 4. When the first fan assembly 2 is in the first state, the second fan assembly is in the second state, and vice versa. That is, when the first fan assembly 2 is working, it blows air and draws air through the second fan assembly 3; when the second fan assembly 3 is working, it blows air and draws air through the first fan assembly 2. This allows for the selection of the blowing and drawing modes of the car seat, enabling effective air circulation on the seat surface in the required environment and avoiding discomfort caused to the human body by a single mode.

[0066] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A dual-sided independent split-drive fan, characterized in that, include: The mounting housing (1) has a first mounting space and a second mounting space that are stacked and interconnected inside. A first fan assembly (2) is provided in the first mounting space and a second fan assembly (3) is provided in the second mounting space. Both the first fan assembly (2) and the second fan assembly (3) have a first state and a second state. The mounting housing (1) is provided with a through hole (18) for connecting the first mounting space and the second mounting space. A control circuit board (4) is disposed between the first fan assembly (2) and the second fan assembly (3). The control circuit board (4) has a first side and a second side that are far apart from each other. The first side corresponds to the first fan assembly (2) and is electrically connected to the first fan assembly (2). The second side corresponds to the second fan assembly (3) and is electrically connected to the second fan assembly (3). The control circuit board (4) is used to control the first fan assembly (2) or the second fan assembly (3) respectively, so that when the first fan assembly (2) is in the first state, the second fan assembly is in the second state, or when the first fan assembly (2) is in the first state, the second fan assembly (3) is in the second state. The first fan assembly (2) includes a first motor (22) and a first impeller (10). The first impeller (10) forms a first ventilation space inside. The first impeller (10) is evenly provided with a plurality of first air inlets and outlets (12) that communicate with the first ventilation space. The first impeller (10) is also provided with a second air inlet and outlet (13) that communicate with the first ventilation space. The second fan assembly (3) includes a second motor (23) and a second impeller (14). The second impeller (14) forms a second ventilation space inside. The second impeller (14) is evenly provided with a plurality of third air inlets and outlets (16) that communicate with the second ventilation space. The second motor (23) has a second output shaft (15). The second impeller (14) and the second output shaft (15) are coaxially fixedly connected. The second impeller (14) is provided with a fourth air inlet and outlet (17) that communicates with the second ventilation space on the side near the second output shaft (15). When the first fan assembly (2) is in the first state, the second fan assembly is in the second state. The first motor (22) drives the first impeller (10) to rotate. The airflow enters the second ventilation space from the third air inlet / outlet (16), passes through the fourth air inlet / outlet (17), the through hole (18) and the second air inlet / outlet (13) in sequence, enters the first ventilation space, and is discharged from the first air inlet / outlet (12). When the second fan assembly (3) is in the first state, the first fan assembly (2) is in the second state. The second motor (23) drives the second impeller (14) to rotate. The airflow enters the first ventilation space from the first air inlet / outlet (12), passes through the second air inlet / outlet, the through hole (18) and the fourth air inlet / outlet (17) in sequence, and enters the second ventilation space, and is discharged from the third air inlet / outlet (16).

2. The dual-sided independent split-drive fan according to claim 1, characterized in that, The mounting shell (1) includes a first cover (5), a second cover (6), and a connecting shell (7). The connecting shell (7) is disposed between the first cover (5) and the second cover (6), dividing the space inside the mounting shell (1) into a first mounting space and a second mounting space. The first mounting space is formed between the first cover (5) and the connecting shell (7), and the second mounting space is formed between the second cover (6) and the connecting shell (7). The first mounting space is provided with a first opening (8) communicating with it in the circumferential direction, and the second mounting space is provided with a second opening (9) communicating with it in the circumferential direction.

3. The dual-sided independent split-drive fan according to claim 2, characterized in that, The first motor (22) has a first output shaft (11), and the first impeller (10) and the first output shaft (11) are coaxially fixedly connected.

4. The dual-sided independent split-drive fan according to claim 3, characterized in that, The connecting housing (7) has a through hole (18) for allowing airflow to pass through.

5. The dual-sided independent split-drive fan according to claim 4, characterized in that, The connecting housing (7) includes a first connecting plate (19) and a second connecting plate (20) arranged in a row, with the first connecting plate (19) close to the first cover (5) and the second connecting plate (20) close to the second cover (6). The through hole (18) passes through the first connecting plate (19) and the second connecting plate (20).

6. The dual-sided independent split-drive fan according to claim 4, characterized in that, The connecting housing (7) is an integral structure, which includes a third connecting plate (21), and the through hole (18) penetrates the third connecting plate (21).

7. The dual-sided independent split-drive fan according to claim 5 or 6, characterized in that, The first fan assembly (2) and the second fan assembly (3) are either coaxially arranged or misaligned.

8. The dual-sided independent split-drive fan according to claim 7, characterized in that, The dimensions of the first impeller (10) and the second impeller (14), the length, thickness, and tilt angle of the blades of the first impeller (10) and the second impeller (14) are different in at least one of the following:

Images