Air pressure detection type inflation and deflation device

Abstract

The utility model relates to the technical field of automobile equipment, and provides an air pressure detection type inflation and deflation device which comprises an upper shell and a lower shell. The upper shell is connected with the lower shell, and a mounting space is formed in the upper shell; a waist support inflation part, a waist support exhaust part and a pressure sensor are further arranged in the mounting space; an air conveying channel is formed between the waist support inflation part and the waist support exhaust part, and the pressure sensor is located in the air conveying channel and used for detecting replaced inflation and deflation pressure; when the gas transmission channel is closed on any side of the waist support inflating part and the waist support exhausting part, the gas transmission channel is opened on the other side, so that the pressure sensor monitors the pressure when the gas transmission channel on any side is opened. The utility model has the effects of reasonable layout, space saving and cost reduction.

Description

Technical Field

[0001] This application relates to the technical field of automotive equipment, and particularly to a pneumatic detection type inflation and deflation device. Background Art

[0002] Automobiles are currently commonly used means of transportation. To avoid lumbar muscle strain or lumbar spine diseases caused by sitting for a long time while driving or riding in a car, people usually choose products such as car lumbar supports to protect the waist.

[0003] Generally, pneumatic massage is used for lumbar supports, and when inflating or deflating an airbag or air chamber, a pressure sensor is required to detect whether inflation or exhaust is needed. Therefore, pressure sensors need to be set at both the inflation and exhaust ends, and the pressure sensors are set at the inflation or exhaust ports, which will occupy the installation area. It is necessary to extend some space at the inflation and exhaust ends for installing the pressure sensors, affecting the overall aesthetics and the convenience of use. Summary of the Invention

[0004] To improve the above problems, this application provides a pneumatic detection type inflation and deflation device.

[0005] A pneumatic detection type inflation and deflation device provided by this application adopts the following technical solutions:

[0006] A pneumatic detection type inflation and deflation device includes an upper housing and a lower housing; the upper housing is connected to the lower housing, and an installation space is formed inside; a lumbar support inflator, a lumbar support exhauster, and a pressure sensor are also provided in the installation space; an air delivery channel is formed between the lumbar support inflator and the lumbar support exhauster, and the pressure sensor is located in the air delivery channel for detecting the inflation and deflation pressure of the lumbar support; when either the lumbar support inflator or the lumbar support exhauster closes the air delivery channel on one side, the other side opens the air delivery channel, so that the pressure sensor monitors the pressure when the air delivery channel on either side is opened.

[0007] By adopting the above technical solutions, when either the lumbar support inflator or the lumbar support exhauster closes the air delivery channel on one side, the other side will open the air delivery channel, so that the pressure sensor monitors the pressure when the air delivery channel on either side is opened. At the same time, it is not necessary to set two groups of pressure sensors at the lumbar support inflator and the lumbar support exhauster respectively, reducing the consumable cost. At the same time, by using the air delivery channel and the ingenious closing and opening methods of the lumbar support inflator and the lumbar support exhauster, the monitoring data of the pressure sensor can be switched, and it is not necessary to extend the installation parts of the lumbar support inflator and the lumbar support exhauster to provide additional installation for the pressure sensor, saving the overall space and making the space layout more reasonable.

[0008] Optionally, a single lumbar support inflator, the lumbar support exhauster, and the pressure sensor form a pneumatic group, and several groups are provided in the installation space.

[0009] By adopting the above technical solution, multiple groups of such pneumatic groups can be arranged in the installation space to achieve a better air charging and discharging effect, with faster air charging and discharging speeds. At the same time, a larger and wider area for providing massage can be realized, making the experience of the lumbar support more comfortable.

[0010] Optionally, several groups of the pneumatic groups are provided with a main air pipeline and a connector, and an air inflator is externally connected to the connector.

[0011] By adopting the above technical solution, the externally connected air inflator is connected to the main air pipeline through the connector, so that the main air pipelines can be connected between the respective pneumatic groups to facilitate unified control of the air charging process.

[0012] Optionally, a main pipeline sensor is provided at the connector.

[0013] By adopting the above technical solution, the main pipeline sensor is responsible for monitoring the air pressure change in the main air pipeline and transmitting the monitoring data to a control system such as a background or a controller in real time through an electrical signal. By monitoring the air pressure change in the main air pipeline, accurate detection data can be further provided to optimize the control effect.

[0014] Optionally, both the lumbar support air inflating member and the lumbar support air exhausting member include an air nozzle, a fixed iron core, and a movable iron core; the air nozzle is the channel opening of the air delivery channel, and both the fixed iron core and the movable iron core are located in the air delivery channel and have magnetic attraction; when powered on, it attracts and closes with the fixed iron core to open the air delivery channel.

[0015] By adopting the above technical solution, by energizing and de-energizing the fixed iron core and the movable iron core, the air nozzle on this side is opened or closed. This two-way switching working process ensures a smooth switch between inflation and exhaust of the massage lumbar support, and realizes pressure detection and internal air dynamic balance.

[0016] Optionally, the movable iron core is connected with an elastic part. When de-energized, the movable iron core is reset under the elastic force of the elastic part to close the air delivery channel.

[0017] By adopting the above technical solution, the elastic part is used to provide a restoring elastic force for moving the movable iron core along the inner wall of the conveying channel, so as to provide a restoring effect when the magnetic force of the movable iron core or the fixed iron core is lost after power-off.

[0018] Optionally, the lumbar support air exhausting member includes a skeleton, and the pressure sensor is integrated with the skeleton.

[0019] By adopting the above technical solution, the design of integrating the pressure sensor with the skeleton can not only save the assembly space, but also simplify the installation process and save the production cost.

[0020] Optionally, the upper shell and the lower shell are provided with a through hole for the nozzle to extend out.

[0021] By adopting the above technical solution, it is ensured that the realization of the inflation and deflation functions is not affected by the shell structure. The diameter of the through hole is consistent with the outer diameter of the nozzle, which can ensure unobstructed air passage between the nozzle and the outside world, and can also prevent foreign objects from entering the massage lumbar support.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When either the lumbar support inflator or the lumbar support exhauster closes the air delivery channel on one side, the other side will open the air delivery channel, enabling the pressure sensor to monitor the pressure when the air delivery channel on either side is opened. At the same time, there is no need to set two groups of pressure sensors, one at the lumbar support inflator and the other at the lumbar support exhauster, which reduces the consumable cost. Meanwhile, by using the ingenious closing and opening methods of the air delivery channel, as well as the lumbar support inflator and the lumbar support exhauster, the monitoring data of the pressure sensor can be switched, eliminating the need for the lumbar support inflator and the lumbar support exhauster to extend out of the installation site to provide additional installation space for the pressure sensor, saving the overall space and making the space layout more reasonable;

[0024] 2. Multiple such pneumatic groups can be set in the installation space to achieve a better inflation and deflation effect, with faster inflation and deflation speeds, and at the same time, a larger and wider area for providing massage can be realized, making the experience of the lumbar support more comfortable;

[0025] 3. By using a connector to connect an external air pump to the main air pipeline, the main air pipelines can be connected between each pneumatic group to facilitate unified control of the inflation process;

[0026] 4. The main pipeline sensor is responsible for monitoring the air pressure change in the main air pipeline and transmitting the monitoring data to a control system such as the background or a controller in real time through an electrical signal. By monitoring the air pressure change in the main air pipeline, more accurate detection data can be further provided to optimize the control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an exploded structural schematic diagram of the inflation and deflation device in an embodiment of the present application;

[0028] Figure 2 is a three-dimensional structural schematic diagram of the inflation and deflation device with the upper shell opened in some embodiments of the present application;

[0029] Figure 3 is a cross-sectional structural schematic diagram of the inflation and deflation device in a side view direction in some embodiments of the present application;

[0030] The reference signs in the drawings are: 1, upper housing; 2, lower housing; 3, lumbar support inflator; 31, air nozzle; 32, fixed iron core; 33, movable iron core; 34, elastic part; 4, lumbar support exhaust part; 41, skeleton; 5, pressure sensor; 6, main air pipeline; 7, joint; 8, main pipeline sensor; 9, through hole. Specific Embodiments

[0031] The following uses specific examples to illustrate the embodiments of the present application. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through different specific embodiments. The details in the present application can also be modified or changed according to different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0032] The following takes the drawings as a reference and details the embodiments of the present application so that those skilled in the technical field to which the present application belongs can easily implement it. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0033] In the description of the present application, the reference terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in combination with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples represented in the present application and the features of different embodiments or examples.

[0034] In addition, the terms "first" and "second" are only used for indication purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0035] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection", but also the case of "indirect connection" with other elements placed therebetween. In addition, when it is said that a certain device "includes" a certain component, unless there is a particularly contrary record, it does not exclude other components, but means that other components can also be included.

[0036] The following combines the attachedFigure 1 - Attachment Figure 3 , the present application will be further described in detail below.

[0037] An embodiment of the present application discloses a pneumatic detection type inflation and deflation device.

[0038] A pneumatic detection type inflation and deflation device is applied to an automotive seat. The inflation and deflation device of the present application is mainly used to inflate and deflate the massage and lumbar support lumbar pad of the automotive seat. The lumbar pad is connected with an airbag or an air bladder, and the massage effect is achieved by inflating or deflating the airbag or the air bladder. It can also be adapted to other devices or apparatuses with inflation and deflation requirements.

[0039] Refer to Figure 1 , including an upper housing 1 and a lower housing 2; the upper housing 1 is connected to the lower housing 2, and an installation space is formed inside. Both the upper housing 1 and the lower housing 2 are rectangular box-shaped. After they are connected, the two rectangular boxes are closed to form the installation space. A plurality of mounting pieces extend from the outer walls of the upper housing 1 and the lower housing 2. After the upper housing 1 and the lower housing 2 are closed, the mounting pieces overlap, and threaded holes are opened on the mounting pieces, and bolt tightening installation is realized by using bolts.

[0040] Wherein, a clamping structure can also be arranged between the upper housing 1 and the lower housing 2 for locking.

[0041] A lumbar pad inflator 3, a lumbar pad exhauster 4 and a pressure sensor 5 are also arranged in the installation space. The lumbar pad inflator 3 can adopt a lumbar pad inflation valve, and an air pump is externally connected to the lumbar pad inflation valve. The lumbar pad exhauster 4 can adopt a lumbar pad air retention valve or a lumbar pad air release valve, and the valve body type is selected according to requirements.

[0042] An air delivery channel is formed between the lumbar pad inflator 3 and the lumbar pad exhauster 4. The pressure sensor 5 is located in the air delivery channel and is used to detect the inflation and deflation pressure of the lumbar pad. When the air delivery channel is inflated or deflated, specific values can be monitored through the pressure sensor 5, and the monitoring data is sent to the background or the controller by using an electric signal, so that when the inflation is insufficient, gas is continuously supplemented until the gas reaches the inflation threshold, and when the deflation amount is insufficient, deflation is continued until the deflation threshold is reached.

[0043] The pressure sensor 5 is located in the middle of the air delivery channel, so that the pressure sensor 5 can monitor both inflation and deflation.

[0044] Since deflation and inflation cannot be carried out simultaneously during massage, otherwise the massage function cannot be realized. Therefore, when inflation is required, deflation cannot be provided. So the lumbar pad inflator 3 and the lumbar pad exhauster 4 can open or close the air delivery channels where they are located.

[0045] When either the lumbar support inflator 3 or the lumbar support exhaust 4 closes the air supply passage on one side, the other side will open the air supply passage, enabling the pressure sensor 5 to monitor the pressure when the air supply passage on either side is opened. At the same time, there is no need to set two groups of pressure sensors 5 separately at the lumbar support inflator 3 and the lumbar support exhaust 4, reducing the consumable cost. Additionally, by using the ingenious closing and opening methods of the air supply passage, as well as the lumbar support inflator 3 and the lumbar support exhaust 4, the monitoring data of the pressure sensor 5 can be switched without the need to extend the installation parts of the lumbar support inflator 3 and the lumbar support exhaust 4 to provide additional installation of the pressure sensor 5, saving overall space and making the space layout more reasonable.

[0046] Among them, the lumbar support exhaust 4 is also provided with sound-absorbing cotton, which can reduce the noise or noise generated during exhaust to ensure quietness.

[0047] Furthermore, a single lumbar support inflator 3, lumbar support exhaust 4, and pressure sensor 5 form a pneumatic group, and several groups are arranged in the installation space. Multiple such pneumatic groups can be arranged in the installation space to achieve a better inflation and deflation effect, with faster inflation and deflation speeds. At the same time, it can provide a larger and wider massage area, making the experience of the lumbar support more comfortable.

[0048] Even further, referring to Figure 1 and Figure 2 As shown, several pneumatic groups are provided with a main air pipeline 6 and connectors 7. The connectors 7 are externally connected to an air pump. By using the connectors 7 to connect the externally connected air pump to the main air pipeline 6, the main air pipeline 6 can be set to connect between each pneumatic group to facilitate unified control of the inflation process. The main air pipeline 6 can be made of high-strength plastic pipe material to ensure high-pressure tolerance and flexibility during long-term use.

[0049] Even more further, a main pipeline sensor 8 can be installed at the connector 7 to further improve the detection accuracy of the overall system. The main pipeline sensor 8 is responsible for monitoring the air pressure change in the main air pipeline 6 and transmitting the monitoring data to a control system such as the background or controller in real time through an electrical signal. By monitoring the air pressure change in the main air pipeline 6, more accurate detection data can be provided to optimize the control effect.

[0050] In some embodiments, referring to Figure 3As shown, the lumbar support inflator 3 and the lumbar support exhauster 4 both include a nozzle 31, a fixed iron core 32, and a movable iron core 33. The nozzle 31 is the orifice of the gas transmission channel, used to connect to an external airbag or air pocket, or discharge gas to the external space. Both the fixed iron core 32 and the movable iron core 33 are located within the gas transmission channel. After the fixed iron core 32 or the movable iron core 33 is energized, an electromagnetic field is generated, enabling the two to attract each other. Therefore, when energized, the movable iron core 33 attracts to the fixed iron core 32, opening the gas transmission channel. Which specific end of the gas transmission channel is opened depends on whether it is in the inflation or exhaust state.

[0051] Specifically, when the massage lumbar support needs to be inflated, the control system controls an external air pump to inflate the lumbar support inflator 3, and simultaneously energizes the movable iron core 33 or the fixed iron core 32 on one side of the lumbar support inflator 3, causing the movable iron core 33 to attract to the fixed iron core 32 to open the gas transmission channel on one side of the lumbar support inflator 3. During this process, the nozzle 31 remains open, allowing gas to enter the air pocket or airbag; when the switch is switched to the exhaust state, the control system controls the external air pump to stop inflating, and simultaneously turns off the power supply to the movable iron core 33 or the fixed iron core 32 on one side of the lumbar support inflator 3, causing the movable iron core 33 of the lumbar support inflator 3 to separate from the fixed iron core 32 and closing the gas transmission channel on one side of the lumbar support charging part;

[0052] Synchronously, the movable iron core 33 or the fixed iron core 32 on one side of the lumbar support exhauster 4 is energized, and the movable iron core 33 of the lumbar support exhauster 4 begins to attract to the fixed iron core 32, causing the residual gas in the gas transmission channel to be discharged from the nozzle 31 on one side of the lumbar support exhauster 4. This two-way switching working process ensures a smooth switch between inflation and exhaust of the massage lumbar support, achieving pressure detection and internal air dynamic balance.

[0053] Furthermore, the movable iron core 33 is connected to an elastic part 34. When de-energized, the movable iron core 33 is reset under the elastic force of the elastic part 34, closing the gas transmission channel. The elastic part 34 can adopt an elastic structure such as a compression spring, specifically used to provide a reset elastic force for moving the movable iron core 33 along the inner wall of the conveying channel, so as to provide a reset effect when the magnetic force of the movable iron core 33 or the fixed iron core 32 is lost after power-off.

[0054] In some embodiments, referring to Figure 3 As shown, the lumbar support exhauster 4 may further include a skeleton 41. The design of the skeleton 41 can not only improve the structural rigidity of the entire massage lumbar support, but also serve as the basis for stabilizing the overall lumbar support exhauster 4, improving the stability of the inflation and deflation process.

[0055] The design of integrating the pressure sensor 5 with the skeleton 41 can not only save assembly space, but also simplify the installation process and save production costs.

[0056] In some embodiments, referring toFigure 1 As shown, through holes 9 for the air nozzles 31 to extend are formed on the upper housing 1 and the lower housing 2, ensuring that the realization of the inflation and deflation functions is not affected by the housing structure. The diameter of the through holes 9 is the same as the outer diameter of the air nozzles 31, which can ensure unobstructed air channels between the air nozzles 31 and the outside world and prevent foreign objects from entering the massage lumbar support.

[0057] Furthermore, a sealing ring can be arranged in the through holes 9 to improve the sealing performance. The material of the sealing ring can be selected as a material with good elasticity such as silica gel to prevent dust and foreign objects from entering.

[0058] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A pneumatic pressure detection type air charging and discharging device, characterized in that, It includes an upper housing (1) and a lower housing (2); the upper housing (1) is connected to the lower housing (2), and an installation space is formed inside; a lumbar support inflator (3), a lumbar support exhaust (4), and a pressure sensor (5) are also provided in the installation space; an air delivery channel is formed between the lumbar support inflator (3) and the lumbar support exhaust (4), and the pressure sensor (5) is located in the air delivery channel for detecting the inflation and deflation pressure of the lumbar support; when any one side of the lumbar support inflator (3) and the lumbar support exhaust (4) closes the air delivery channel, the other side opens the air delivery channel, so that the pressure sensor (5) monitors the pressure when any one side of the air delivery channel is opened.

2. The air pressure detection type air charging and discharging device according to claim 1, characterized in that, A single lumbar support inflator (3), the lumbar support exhaust (4), and the pressure sensor (5) form a pneumatic group, and several groups are provided in the installation space.

3. The air pressure detection type air charging and discharging device according to claim 2, characterized in that, The several groups of pneumatic groups are provided with a main air pipeline (6) and a joint (7), and an air pump is externally connected to the joint (7).

4. The air pressure detection type air charging and discharging device according to claim 3, characterized in that A main pipeline sensor (8) is provided at the joint (7).

5. The air pressure detection type air charging and discharging device according to claim 1, characterized in that, Both the lumbar support inflator (3) and the lumbar support exhaust (4) include a nozzle (31), a fixed iron core (32), and a movable iron core (33); the nozzle (31) is the channel opening of the air delivery channel, and both the fixed iron core (32) and the movable iron core (33) are located in the air delivery channel and have magnetic attraction; when energized, it attracts and closes with the fixed iron core (32) to open the air delivery channel.

6. The air pressure detection type air charging and discharging device according to claim 5, wherein The movable iron core (33) is connected with an elastic part (34). When powered off, the movable iron core (33) is reset under the elastic force of the elastic part (34) to close the air delivery channel.

7. The air pressure detection type air charging and discharging device according to claim 5, characterized in that, The lumbar support exhaust (4) includes a skeleton (41), and the pressure sensor (5) is integrated with the skeleton (41).

8. A pneumatic pressure detection type air charging and discharging device according to claim 5, characterized in that, Through holes (9) for the nozzles (31) to extend out are provided on the upper housing (1) and the lower housing (2).

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