Air cushion that can measure air pressure

Abstract

The present invention provides an air cushion capable of measuring air pressure, more specifically, comprising: an air cushion body; a detection module mounted on the air cushion body for transmitting a measurement signal by measuring the air pressure inside the air cushion body; and a control module for receiving the measurement signal from the detection module, converting the measurement signal into digital data, and transmitting the digital data to an output module.

Description

Technical Field

[0001] This invention relates to an air cushion capable of measuring air pressure. Background Technology

[0002] In modern life, air mattresses are used in various environments such as camping, family beds, and hospitals. Traditional mattresses, due to the large volume of their internal padding, are difficult to move, store, and dispose of.

[0003] However, inflatable air mattresses can be rolled up and stored when not in use, making them convenient to carry and store. In this case, the internal air pressure of the air mattress directly determines the user's comfort and safety.

[0004] On the other hand, conventional technology patent No. 10-2364940 (hereinafter referred to as conventional technology) relates to a flattening air cushion for SUV vehicles. More specifically, in a flattening air cushion 10 for SUV vehicles equipped with an intake valve 11 on one side, the bottom surface of the air cushion 10 is designed to accommodate the protrusion 12 at bending points that occur when the vehicle seat is folded. This design prevents bending caused by the protrusion or the bending points formed at the bottom of the seat, thus creating a folding structure. This is to maintain a stable flat surface on the vehicle.

[0005] However, these traditional technologies have problems such as the inability to visually confirm air pressure, requiring users to rely on their senses to judge whether the mat is too hard or too soft, and making it difficult to use air mats of uniform quality.

[0006] Existing technical documents

[0007] Patent documents

[0008] (Patent Document 1) Korean Patent No. 10-2364940 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] The problem to be solved by the present invention is to maintain the air pressure of an air cushion at a desired level by visually utilizing the state of air pressure.

[0011] The subject matter of this invention is not limited to the subject matter mentioned above, and other unmentioned technical subject matter can be clearly understood by the owner from the following description.

[0012] means for solving problems

[0013] To achieve the aforementioned objective, the present invention provides an air cushion body; a detection module installed on the air cushion body to send a measurement signal by measuring the air pressure inside the air cushion body; and a control module that receives the measurement signal from the detection module, converts the measurement signal into digital data, and transmits the digital data to an output module.

[0014] In addition, the control module may also include a capacitor that receives the measurement signal from the detection module, removes noise from the measurement signal, and an OP amplifier that amplifies the noise-reduced measurement signal located at the rear end of the capacitor.

[0015] In addition, the control module may also include an ADC (Analog-to-digital converter) to convert the analog measurement signal amplified by the OP amplifier into digital pressure information data, and transmit the pressure information data to the output module.

[0016] In addition, the control module may also include a diode installed at the rear end of the detection module or the rear end of the OP amplifier.

[0017] In addition, the air cushion body may include a mounting groove formed by collapsing from the outside to the inside, and a mounting component inserted into the mounting groove to install and connect the output module.

[0018] In addition, the mounting component may also include a plate forming a through hole, a protrusion that protrudes outward from the outer surface of the plate and connects to the output module, and a shielding portion that protrudes outward from around the protrusion and surrounds the output module connected to the protrusion.

[0019] Invention Effects

[0020] According to an embodiment of the present invention, it has the effect of visually utilizing the state of air pressure to maintain the air pressure of the air cushion at a desired state. Attached Figure Description

[0021] Figure 1 This is a four-view diagram of an air cushion that can measure air pressure, according to an example of the present invention.

[0022] Figure 2 This is a cross-sectional diagram illustrating an air cushion that can measure air pressure.

[0023] Figure 3 It is a schematic block diagram describing the control module.

[0024] Figure 4 These are actual photos illustrating the output module and mounting components.

[0025] Figure 5These are drawings illustrating additional embodiments of the present invention.

[0026] Explanation of reference numerals in the attached figures

[0027] M: Air cushion that can measure air pressure;

[0028] 1: Air cushion main body;

[0029] 1h: Install homepage;

[0030] 2: Detection module;

[0031] 3: Control module;

[0032] 31: Capacitor;

[0033] 32: OP amplifier;

[0034] 33: ADC;

[0035] 34: Diode;

[0036] 4: Output module;

[0037] 5: Install components;

[0038] 51: Board;

[0039] 51h: Through hole;

[0040] 52: Highlighted part;

[0041] 53: Covering part. Detailed Implementation

[0042] The advantages and features of this invention, as well as the methods for implementing them, will become clear from the accompanying drawings and detailed implementation examples. However, this invention will be embodied in different forms and is not limited to the embodiments described below. These embodiments are intended only to complete the introduction of the invention and to fully inform those skilled in the art of the scope of the invention, which is defined only by the scope of the claims.

[0043] Throughout this statement, when it is said that a part is “connected” to other parts, this includes not only “direct connection (including electrical connection)”, but also “indirect connection (including electrical connection)” where there are other elements in between.

[0044] Figure 1 This is a four-view diagram of an air cushion that can measure air pressure, according to an example of the present invention. Figure 2 This is a cross-sectional diagram illustrating an air cushion that can measure air pressure. Figure 3 It is a schematic block diagram describing the control module. Figure 4 These are actual photos illustrating the output module and mounting components.

[0045] According to one embodiment of the present invention, an air pad M that can measure air pressure can visually confirm the air pressure of the air pad body 1, which will be referred to as "this pad" for the purposes of this description.

[0046] like Figures 1 to 3 As shown, this pad (air pad M capable of measuring air pressure) may include an air pad body 1, a sensing module 2, and a control module 3.

[0047] The air cushion body 1, as disclosed, is generally formed of synthetic resin materials such as polyvinyl chloride or thermoplastic polyurethane, and has a casting hole that is filled with air. The casting hole can generally be connected to an opening and closing component for opening and closing.

[0048] The air cushion body 1 may sometimes have structural materials attached or connected to its upper or outer surface.

[0049] The sensing module 2 is installed on the air cushion body 1 and transmits measurement signals by measuring the air pressure inside the air cushion body 1.

[0050] Example of detection module 2 could be a pressure sensor. A pressure sensor is a device that detects changes in the pressure of gas applied to a sensor and converts this change into an electrical signal from a pressure-reducing element, emitting an analog pressure electrical signal.

[0051] These detection modules 2 can use a variety of products listed in the announcement, including resistive barometric pressure sensors, capacitive pressure sensors, etc.

[0052] The detection module 2 can be installed inside the air cushion body 1. As long as it can measure the air pressure of the air cushion body 1, it is not limited to the device described above. Of course, various pressure sensors can be used.

[0053] The measurement range of the detection module 2 is 0 to 50 kPa, the accuracy is ±1% FS (Full Scale), and the response time should be less than 50 ms.

[0054] The control module 3 receives the measurement signal from the detection module 2, converts the measurement signal into digital data, and transmits the digital data to the output module 4.

[0055] Examples of the output module 4 may include LCD, LED, OLED, etc., and any other display device is acceptable as long as it can output the digital data.

[0056] The output module 4, viewed from a planar perspective, should be less than 2 inches and have a resolution greater than 128x64.

[0057] The output module 4, which outputs the digital data, can be mounted on the mounting component 5 and connected to the air cushion body 1. This will be described in more detail later; the cushion may include the output module 4.

[0058] The control module 3 can employ various control configurations or computing devices (such as computers, processors, MCUs, and other electronic devices or modules) familiar to those skilled in the art. For example, the control module 3 can be configured to transmit signals or commands generated according to its contained programs or algorithms to output modules such as 4. Alternatively, the control module 3 can be a standalone configuration connected to sensing modules 2, output modules 4, etc., via wired or wireless connections.

[0059] As described above, the control module 3 receives the measurement signal and converts it into digital data. More specifically, the control module 3 may include a capacitor 31 to receive the measurement signal (analog signal) from the detection module 2 and remove noise from the measurement signal.

[0060] Capacitor 31 can bypass the filter (decouple) the high-frequency signal, temporarily store energy, and release it when necessary, thereby reducing voltage fluctuations (noise).

[0061] In addition, the control module 3 may also include an OP amplifier 32 for amplifying the measurement signal that has been noise-removed by the capacitor 31 and is located at the rear end of the capacitor 31.

[0062] The back end refers to the direction of movement of signals (measurement signals) or data (digital data) in the detection module 2, control module 3, etc., as a reference, and the signals and data can move from the front end to the back end.

[0063] The OP amplifier 32 is a device for amplifying weak electrical signals, with the purpose of amplifying the measured signal so as to facilitate its conversion into digital data.

[0064] The control module 3 includes an ADC33 (Analog-to-digital converter), which converts the analog signal provided at the back end of the OP amplifier 32 and the measurement signal amplified by the OP amplifier 32 into pressure information data in digital form, and transmits the pressure information data to the output module 4.

[0065] The ADC33 may be a configuration of the MCU (Microcontroller Unit) in the control module 3. The MCU may be an ARM Cortex-M series product, suitable for low power consumption and real-time processing.

[0066] The MCU is the model described above, with a 32-bit clock speed of 48MHz or higher, which can optimize battery efficiency in low-power mode.

[0067] The output module 4 is electrically connected to the MCU via the SIP or I2C port, and can receive and output the pressure information data.

[0068] The control module 3 may include a PCB substrate or board electrically connected to the MCU, capacitor 31, OP amplifier 32, etc., and the control module 3 may include VCC that provides power to the circuits on the PCB substrate or board.

[0069] The control module 3 may include a diode 34 mounted on the rear end of the detection module 2 or the rear end of the OP amplifier 32. The diode 34 has unidirectional current flow characteristics, and when a reverse voltage occurs, it can prevent or bypass current flow to the detection module 2 or the OP amplifier 32, thereby protecting the detection module 2 or the OP amplifier 32 from the effects of reverse voltage.

[0070] like Figure 2 As shown, the air cushion body 1 may include an installation groove 1h formed by collapsing from the outside to the inside (the air receiving space side).

[0071] At this time, the pad may include a mounting component 5 that is inserted into the mounting slot 1h and installed and connected to the output module 4.

[0072] The output module 4 can be connected to the protruding portion 52 of the mounting component 5 described below by a variety of common methods.

[0073] Similarly, the mounting member 5 is formed on the mounting groove 1h to prevent the mounting member 5 and the output module 4 from protruding from the outer surface of the air cushion body 1, thereby improving the overall smoothness of the cushion's appearance and ensuring that the cover of the air cushion body 1 fits tightly against the air cushion body 1.

[0074] like Figure 4 As shown, the mounting component 5 may include a plate 51 forming a through hole 51h and a protrusion 52 that protrudes outward from the outer surface of the plate 51 and connects to the output module 4 on the outside.

[0075] Here, "inner side" refers to the air-receiving space within the air cushion body 1. Using degree 2 as a reference, it refers to the center side of the air cushion body 1, which is parallel to the vertical direction (described later). Figure 5 To the right), the outer side is the direction outside the air cushion body 1, with degree 2 as the reference, the central side may refer to the radial direction side (described later). Figure 5 (To the left). The same applies in the following description.

[0076] The mounting component 5 may include a shielding portion 53 that protrudes outward around the protrusion 52 and surrounds the output module 4 connected to the protrusion 52.

[0077] The shielding portion 53 can protect the output module 4 from external influences.

[0078] Figure 5 These are drawings illustrating additional embodiments of the present invention.

[0079] Additional embodiments of the present invention will be described below.

[0080] First, control module 3 is not listed, but it may contain a repository that receives and stores reference data about the reference pressure range from the input module.

[0081] The input module, such as a smartphone or PC, allows the standard data to be input through its user interface. This pad may include the input module.

[0082] The control module 3 can receive pressure information data about the internal air pressure (measured pressure) of the air cushion body 1 from the ADC33, and generate a less than signal when the measured pressure is lower than the standard pressure range (e.g., 20-30 kPa), and generate a comparison judgment symbol for the exceed signal when the measured pressure exceeds the standard pressure range.

[0083] In addition, the pad may also include a light-emitting module (e.g., a warning light) connected to the air cushion body 1 that emits light when receiving the insufficient signal from the comparison and judgment unit, and a speaker that emits an alarm sound when receiving the excessive signal from the comparison and judgment unit.

[0084] For example, the light-emitting module and the speaker can be connected to the mounting component 5 and the air cushion body 1, respectively.

[0085] In addition, control module 3 may include a clock module, which is a notification product that generates time data.

[0086] Control module 3 may include operators that receive pressure information data from the ADC33 and time data from the clock module.

[0087] At this point, the operator can calculate the rate of decrease of the measured pressure over time.

[0088] The control module 3 may include receiving the reduction rate from the operator, generating an alarm signal when the reduction rate is greater than a set standard ratio, causing the speaker to produce an alarm sound, and sending it to the alarm section of the speaker.

[0089] Similarly, the control module 3, which includes an arithmetic unit and an alarm unit, can identify damage to the air cushion body 1 when the reduction rate is greater than the standard rate, so as to inspect the air cushion body 1.

[0090] like Figure 5 As shown, the pad may include fastening means 6, including a nut member 61 fixedly mounted on the mounting groove 1h, and a bolt member 62 that passes through the through hole 51h and fastens a screw to the nut member 61.

[0091] The mounting groove 1h may include a circumferential surface extending from the inner side and the inner perimeter to the outer side, and the nut component 61 may be fixedly mounted on the inner side.

[0092] The shielding portion 53 may include a fastening screw groove 53h formed by collapsing inward from the outside (surface).

[0093] The fastening screw groove 53h may be formed along the circumferential direction of the shielding portion 53, and the inner side may be annular when viewed from the outside. In addition, the fastening screw groove 53h includes a first side extending from a first end forming the inner diameter of the inner side to the outer side and a second side extending from a second end forming the outer diameter of the inner side to the outer side, and the second side may have threads.

[0094] The mounting component 5 may include a groove 57 formed by the protrusion 52 and the plate 51.

[0095] Furthermore, the mounting member 5 is positioned on the outside of the shielding member 53, covering the groove 57, and extends from the protective plate 551 formed of transparent material around the inner side of the protective plate 551, inserting into the fastening screw groove 53h, but the outer periphery may contain threads, and the fastening screw protrusion 552 of the fastening screw fastening the fastening screw in the fastening screw groove 53h is protected by the fastening screw protrusion 552.

[0096] The protective component 55 covers the slot 57 to provide external protection for the output module 4. It is detachably connected to and can be separated from the shield 53, which improves maintainability. Only the protective component 55 can be replaced separately.

[0097] The frequently installed component 5 consists of a post 561 extending outward from the outer side of the protrusion 52, a clamping groove 562 formed by the inward recess of the outer side of the post 561, and a resin material (e.g., rubber). It is placed inside the post 561 and includes a gasket 5631 supported inside the protective plate 551 and a buffer member 563 containing the clamping groove 562 extending inward from the inner side of the gasket 563. This is permissible.

[0098] The support 56 may be intended to prevent the protective plate 551 from bending or breaking inward due to impact, thereby damaging the configuration of the output module 4.

[0099] The gasket 5631 is made of resin material and elastically deforms to absorb impact when a load is applied. The clamping protrusion 5632 is inserted into the clamping groove 562 for clamping and separation. Only the buffer part 563 that the protective plate 551 frequently contacts can be separated from the support 561 for replacement.

[0100] Although not explicitly indicated, the mounting component 5 may include a disengaging means, including a screw groove recessed from the outside to the inside of the protrusion 52, and a protrusion inserted into the screw groove from the inside end of the support 561, but with threads on its outer peripheral surface, and a screw protrusion that connects to the screw groove with a screw.

[0101] In this way, if the support 561 is bent or damaged by load, the support 561 can be replaced.

[0102] The embodiments of the present invention have been illustrated above with reference to the accompanying drawings. However, those skilled in the art will understand that the invention can be implemented in other specific forms without altering the technical concept or essential features of the invention. Therefore, the embodiments described above should be understood as exemplary in all aspects, and not limiting.

Claims

1. An air cushion capable of measuring air pressure, characterized in that, The air cushion capable of measuring air pressure includes: Air cushion body; A detection module installed on the air cushion body that sends a measurement signal by measuring the air pressure inside the air cushion body; and The control module receives the measurement signal from the detection module, converts the measurement signal into digital data, and transmits the digital data to the output module.

2. The air cushion capable of measuring air pressure according to claim 1, characterized in that, The control module includes receiving the measurement signal from the detection module, a capacitor for removing noise from the measurement signal, and an OP amplifier that amplifies the noise-removed measurement signal at the back end of the capacitor. It also includes converting the analog signal at the back end of the OP amplifier and the measurement signal amplified by the OP amplifier into pressure information data in digital data form, and transmitting the pressure information data to the ADC (Analog-doctor-doctor-domat-to-converter) of the output module.

3. The air cushion capable of measuring air pressure according to claim 1, characterized in that, The air cushion body includes a mounting groove that collapses from the outside to the inside, and a mounting component that is inserted into and installed in the mounting groove and connected to the output module. The mounting component has a plate forming a through hole, a protrusion extending outward from the outer surface of the plate to connect to the output module, and a shielding portion extending outward from around the protrusion and surrounding the output module connected to the protrusion.

4. The air cushion capable of measuring air pressure according to claim 3, characterized in that, The mounting component has a plate forming a through hole, a protrusion extending outward from the outer surface of the plate to connect to the output module, and a shielding portion extending outward from around the protrusion and surrounding the output module connected to the protrusion.

5. The air cushion capable of measuring air pressure according to claim 4, characterized in that, The mounting component has a plate forming a through hole, a protrusion extending outward from the outer surface of the plate to connect to the output module, and a shielding portion extending outward from around the protrusion and surrounding the output module connected to the protrusion.

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