A pressure sensing assembly for a smart bracelet

Abstract

The application discloses a pressure sensing assembly for a smart bracelet, the smart bracelet comprising a machine body and wristbands connected to two sides of the machine body respectively, a flexible thin belt being arranged inside the wristband along a length direction, a plurality of pressure sensing positions being arranged on the flexible thin belt at intervals, one pressure sensitive element being arranged correspondingly at each pressure sensing position, and a pressure conducting element penetrating through an inner side surface of the wristband being connected to the pressure sensitive element; a plurality of pins are arranged at end portions of the wristband, and the pressure sensitive element is connected to the pins through lead wires; the pressure sensing assembly is used for identifying and matching regular motion modes or gesture actions of a wrist, and convenient operation of a terminal receiving unit is realized.

Description

Technical Field

[0001] This invention relates to the field of smart bracelet technology, and more specifically to a pressure sensing component for a smart bracelet. Background Technology

[0002] A smart bracelet is a wearable smart device that allows users to record real-time data on their daily activities, such as exercise, sleep, and some dietary habits. This data can then be synchronized with their mobile phones and other devices, providing guidance for a healthy lifestyle.

[0003] With the development of smart technology, smart bracelets are no longer just simple tools for recording body characteristics; they can also fulfill functions such as making calls, mobile payments, human body recognition, smart reminders, and sharing, greatly expanding the user base for smart bracelets. Exploring more functional applications of smart bracelets is an important direction for future development.

[0004] For example, patent CN216019506U discloses a smart wristband based on flexible sensing material, including a wristband body that wraps around the human wrist. The wristband body is made of medical soft silicone. A sensing band is embedded and fixed on the inner wall of the wristband body. One side of the sensing band is exposed and can fit perfectly with the human skin after the wristband body is worn on the wrist. A protective cover is covered on the wristband body and the protective cover is movably connected to the wristband body.

[0005] The above solution embeds a flexible pressure sensor in the wristband and monitors indicators such as the human body's heart rate through the sensor band, thereby more accurately observing and recording the human body's health data; however, the function is relatively limited, which is a basic application of the flexible pressure sensor and does not further develop the human body recognition function of the wristband as a wearable device. Summary of the Invention

[0006] The purpose of this invention is to address the problems existing in the prior art by providing a pressure sensing component for a smart bracelet, which can identify and match regular movement patterns or gestures of the wrist, enabling convenient operation of the remote control terminal receiving unit.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A pressure sensing component for a smart bracelet includes a body and wristbands connected to both sides of the body. A flexible thin strip is arranged along the length of the inside of the wristband, and a plurality of pressure sensing positions are spaced apart on the flexible thin strip. Each pressure sensing position corresponds to a pressure-sensitive element, and the pressure-sensitive element is connected to a pressure transmission element passing through the inner side of the wristband. A plurality of pins are provided at the end of the wristband, and the pressure-sensitive element is connected to the pins through leads.

[0009] The wristband includes an upper surface layer and a lower surface layer that is superimposed and connected to the upper surface layer, with the flexible thin strip sandwiched between the upper surface layer and the lower surface layer.

[0010] The wristband is connected to an L-shaped plug at one end. The L-shaped plug has several contact pieces. The pin passes through the L-shaped plug and is connected to the contact pieces. The L-shaped plug is plugged into the body and fixed with screws.

[0011] The inner side of the wristband is provided with a number of evenly spaced arc protrusions, and a number of pressure transmission elements pass through the arc protrusions one by one. The outer end of the pressure transmission element is flush with the outer side of the arc protrusion.

[0012] The outer side of the wristband is provided with a number of rectangular protrusions at even intervals, and the interval between the rectangular protrusions is the same as the length of the arc protrusion.

[0013] The wristband has several flexible magnetic strips inside, and each flexible magnetic strip is located between two pressure-sensitive elements.

[0014] The wristband has a rigid sheet located on the upper side of each pressure-sensitive element.

[0015] The pressure transmission element includes a circular soft rubber pad and a metal pillar. The upper end of the circular soft rubber pad abuts against the pressure-sensitive element. The area of ​​the circular soft rubber pad is smaller than the surface area of ​​the pressure-sensitive element but larger than 60% of the surface area of ​​the pressure-sensitive element. The upper end of the metal pillar is connected to the circular soft rubber pad, and the lower end of the metal pillar is sealed and fixed to the inner side of the wristband.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By setting pressure-sensitive elements at intervals on the inner side of the wristbands on both sides, when the wrist moves quickly and regularly, each pressure-sensitive element on both sides detects different pressure values, and the pressure values ​​change regularly over a period of time. Each pressure-sensitive element sends the detected signal to the device, which matches it with the stored action pattern, identifies the action pattern, and sends the action command to the terminal receiving unit, thus realizing convenient operation with air gestures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the smart bracelet of the present invention;

[0019] Figure 2 This is a cross-sectional schematic diagram of the wristband of the present invention;

[0020] Figure 3 This is a cross-sectional view of the wristband of the present invention;

[0021] Figure 4 This is an unfolded view of the inner side of the wristband of the present invention;

[0022] Figure 5 This is a schematic diagram of the flexible thin strip and pressure transmission element of the present invention;

[0023] Figure 6 This is a schematic diagram of the overlapping portion of the wristbands on both sides of the present invention;

[0024] In the diagram: 1. Body; 2. Wristband; 3. Flexible thin strip; 4. Pressure-sensitive element; 5. Pressure transmission element; 6. Pin; 7. Upper surface layer; 8. Lower surface layer; 9. L-shaped plug block; 10. Arc-shaped protrusion; 11. Rectangular protrusion; 12. Flexible magnetic strip; 13. Hard sheet; 14. Circular soft rubber pad; 15. Metal column. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] like Figures 1 to 6As shown, a pressure sensing component for a smart bracelet includes a body 1 and a wristband 2 connected to both sides of the body 1. A flexible thin strip 3 is arranged along the length of the inside of the wristband 2, with several pressure sensing positions spaced apart on the flexible thin strip 3. Each pressure sensing position corresponds to a pressure-sensitive element 4, and the pressure-sensitive element 4 is connected to a pressure transmission element 5 passing through the inner side of the wristband 2. Several pins 6 are provided at the end of the wristband 2, and the pressure-sensitive elements are connected to the pins 6 via leads. The flexible thin strip can be a polyester film with excellent mechanical properties and a thickness not exceeding 0.3 mm. The pressure-sensitive element 4 is not particularly limited and can be based on existing technology, such as a piezoresistive pressure-sensitive element. Each pressure-sensitive element may include two fixed resistors and two piezoresistive resistors, which are connected to form a Wheatstone bridge to measure and output the pressure value at the location of the pressure-sensitive element. The pressure-sensitive element 4 can be printed onto the flexible thin strip 3. In other embodiments, the pressure-sensitive element can also be a capacitive pressure-sensitive element, a strain gauge pressure-sensitive element, etc. The pressure transmission element 5 is used to transmit the pressure of the wrist to the pressure-sensitive element 4.

[0028] In the above scheme, pressure-sensitive elements 4 are spaced apart on the inner sides of the wristbands 2 on both sides. When the wrist moves rapidly and rhythmically, each pressure-sensitive element 4 on both sides of the wristband 2 detects different pressure values, and the pressure values ​​change rhythmically over a period of time. Each pressure-sensitive element 4 sends the detected signal to the body 1. The body 1 matches the pressure signal with a stored preset action pattern, identifies the action pattern, and then sends the action command to the receiving unit of the execution terminal, realizing convenient air gesture operation. The execution terminal can be a smart home device, an entertainment game console, a sports and fitness equipment, an industrial intelligent device, etc.

[0029] like Figure 2 and Figure 3 As shown, the wristband 2 includes an upper surface layer 7 and a lower surface layer 8 that is overlapped and connected to the upper surface layer 7, with a flexible thin strip 3 sandwiched between the upper surface layer 7 and the lower surface layer 8. By bonding the upper surface layer 7 and the lower surface layer 8, the installation of the flexible thin strip 3 is facilitated.

[0030] like Figure 1 As shown, an L-shaped connector 9 is connected to the end of the wristband 2. The L-shaped connector 9 has several contact pieces, and the pins 6 pass through the L-shaped connector 9 and connect to the contact pieces. The L-shaped connector 9 is plugged into the body 1 and can be fixed with screws. The wristband 2 is detachably connected to the body via the L-shaped connector 9, which facilitates the assembly and disassembly of the wristband 2 and the maintenance or replacement of the internal components of the wristband 2.

[0031] like Figure 2 and Figure 3As shown, the inner side of the wristband 2 is provided with several evenly spaced arc-shaped protrusions 10, and several pressure transmitting elements 5 pass through the arc-shaped protrusions 10 one by one. The outer end of the pressure transmitting element 5 is flush with the outer side of the arc-shaped protrusion 10. By setting the arc-shaped protrusions 10, the pressure transmitting element 5 makes more direct contact with the wrist, making the pressure sensing of each pressure-sensitive element 4 more accurate, while not affecting the wearing comfort.

[0032] like Figure 6 As shown, the outer surface of the wristband 2 is provided with several rectangular protrusions 11 evenly spaced apart, and the spacing between the rectangular protrusions 11 is the same as the length of the arc protrusions 10. After wearing, depending on the size of the wrist, the end of the wristband partially overlaps, and the rectangular protrusions 11 of the overlapping part are placed on both sides of the arc protrusions 10, so that the arc protrusions 10 are suspended, and the pressure transmission element 5 of the overlapping part cannot detect the pressure, thus avoiding false measurement.

[0033] The wristband 2 has several flexible magnetic strips 12 inside, each of which is located between two pressure-sensitive elements 4. The flexible magnetic strips 12 are used to attract each other at the overlapping parts of the two wristbands, thereby fastening the wrist. By placing the flexible magnetic strips 12 between the two pressure-sensitive elements 4, the detection accuracy of the pressure-sensitive elements 4 is not affected.

[0034] The wristband 2 has a rigid sheet 13 located on the upper side of each pressure-sensitive element 4. The rigid sheet 13 serves as a support surface for the rear side of the pressure-sensitive element 4, preventing deformation of the pressure-sensitive element 4 from affecting the detection accuracy.

[0035] The pressure transmission element 13 includes a circular soft rubber pad 14 and a metal pillar 15. The upper end of the circular soft rubber pad 14 abuts against the pressure-sensitive element 4. The area of ​​the circular soft rubber pad 14 is smaller than the surface area of ​​the pressure-sensitive element 4, but larger than 60% of the surface area of ​​the pressure-sensitive element 4. The upper end of the metal pillar 15 is connected to the circular soft rubber pad 14, and the lower end of the metal pillar 15 is sealed and fixed to the inner side of the wristband 2. The circular soft rubber pad 14 and the metal pillar 15 are used to enhance the response stability of the pressure-sensitive element 4.

[0036] Working principle: When wearing a smart bracelet, the pressure sensor element on the wristband is activated in a predetermined situation. When the wearer makes various gestures, such as quickly waving the hand left and right or up and down, the pressure sensor elements on the wristband detect regular changes in pressure value and send them to the device. The device recognizes the action pattern and sends it to the execution terminal, thereby realizing quick gesture operation.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure sensing component for a smart bracelet, the smart bracelet comprising a body (1) and wristbands (2) respectively connected to both sides of the body (1), characterized in that, The wristband (2) includes a flexible thin strip (3) arranged along its length inside the wristband (2). Several pressure sensing positions are arranged at intervals on the flexible thin strip (3). Each pressure sensing position is provided with a pressure-sensitive element (4). The pressure-sensitive element (4) is connected to a pressure transmission element (5) that passes through the inner side of the wristband (2). Several pins (6) are provided at the end of the wristband (2). The pressure-sensitive element is connected to the pins (6) through a lead wire. The inner side of the wristband (2) is provided with a number of arc protrusions (10) evenly spaced apart, and a number of pressure transmission elements (5) pass through the arc protrusions (10) one by one. The outer end of the pressure transmission element (5) is flush with the outer side of the arc protrusion (10). The outer side of the wristband (2) is provided with a number of rectangular protrusions (11) evenly spaced apart, and the spacing between the rectangular protrusions (11) is the same as the length of the arc protrusions (10).

2. The pressure sensing component for a smart bracelet according to claim 1, characterized in that, The wristband (2) includes an upper surface layer (7) and a lower surface layer (8) that is superimposed and connected to the upper surface layer (7), and the flexible thin strip (3) is sandwiched between the upper surface layer (7) and the lower surface layer (8).

3. The pressure sensing component for a smart bracelet according to claim 1, characterized in that, The wristband (2) is connected to an L-shaped plug block (9) at one end. The L-shaped plug block (9) has several contact pieces. The pin (6) passes through the L-shaped plug block (9) and is connected to the contact pieces. The L-shaped plug block (9) is plugged into the body (1) and fixed by screws.

4. The pressure sensing component for a smart bracelet according to claim 1, characterized in that, The wristband (2) has several flexible magnetic strips (12) inside, and each flexible magnetic strip (12) is located between two pressure-sensitive elements (4).

5. A pressure sensing component for a smart bracelet according to claim 4, characterized in that, The wristband (2) has a hard sheet (13) located on the upper side of each pressure-sensitive element (4) inside.

6. The pressure sensing component for a smart bracelet according to claim 1, characterized in that, The pressure transmission element (5) includes a circular soft rubber pad (14) and a metal column (15). The upper end of the circular soft rubber pad (14) abuts against the pressure-sensitive element (4). The area of ​​the circular soft rubber pad (14) is smaller than the surface area of ​​the pressure-sensitive element (4) and larger than 60% of the surface area of ​​the pressure-sensitive element (4). The upper end of the metal column (15) is connected to the circular soft rubber pad (14), and the lower end of the metal column (15) is sealed and fixed to the inner side of the wristband (2).

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