Wearable monitoring device
By designing a strain sensor including a bearing film and a deformation detection circuit, and adhering to the flexible substrate through a Velcro connection structure, the problem of intimate bonding between the sensor and the flexible substrate in the prior art is solved, and high-accurate skin deformation monitoring and protection of the air permeability of the flexible substrate is achieved.
Patent Information
- Application Number
- CN202421613692.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-09
AI Technical Summary
When existing wearable monitoring equipment monitors the deformation of human skin, the sensor and the flexible substrate are not tight enough, resulting in inaccurate deformation data. At the same time, the sensor may affect the breathability of the flexible substrate.
A monitoring device including a wearable flexible substrate and a strain sensor is designed. The strain sensor consists of a bearing film, a deformation detection circuit, a signal transmitting device and an adhesion area. The deformation detection circuit is formed through hot pressing technology, and adheres to the flexible substrate through a Velcro connection structure to ensure that the sensor deforms independently of the flexible substrate.
It realizes accurate monitoring of human skin deformation without affecting the breathability of the flexible matrix, and the equipment is more flexible in combination and adapts to different measurement needs and locations.
Smart Images
Figure CN222899114U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a wearable device, and in particular to a wearable monitoring device. Background Art
[0002] In order to more accurately obtain various parameters of human motion, various wearable monitoring devices have emerged. Some of these parameters have higher requirements for the corresponding wearable monitoring devices. For example, when monitoring the deformation of human skin, the sensor needs to be close to the skin to obtain it, which puts higher requirements on the form and setting method of the sensor.
[0003] In the prior art, there is a technical solution of placing liquid metal sensors on clothing to monitor the deformation of human skin, but this technology still needs to be further improved. Summary of the invention
[0004] In view of the above problems, the present application discloses a wearable monitoring device. The above structure makes the variable sensor unaffected by the deformation of the wearable flexible substrate, can ensure the air permeability of the wearable flexible substrate, and is more flexible in combination.
[0005] In order to achieve the above objectives, this application adopts the following technical solutions:
[0006] The present application provides a wearable monitoring device, which includes a wearable flexible substrate and a strain sensor. The wearable flexible substrate is provided with a first adhesion area. The strain sensor includes a carrier film, a deformation detection circuit, a signal transmitting device and a second adhesion area. The deformation detection circuit is formed by printing liquid metal onto the carrier film and hot pressing, and the deformation detection circuit includes a sensitive gate circuit and a transmission path electrically connected to the sensitive gate circuit. The signal transmitting device is hot pressed onto the carrier film, and the signal transmitting device is electrically connected to the transmission path to obtain a strain signal emitted by the sensitive gate circuit through the transmission path and transmit the strain signal. The second adhesion area is provided on the side of the carrier film where the deformation detection circuit is not printed, and the second adhesion area can be adhered to the first adhesion area to adhere the strain sensor to the wearable flexible substrate.
[0007] Because the strain sensor and the wearable flexible substrate are two relatively independent entities, the deformation of the wearable flexible substrate itself will not have much impact on the strain sensor during the wearing process. And the strain sensor will not affect the breathability of the wearable flexible substrate, which is beneficial to skin health. At the same time, according to different measurement requirements and measurement locations, it is more convenient to select the corresponding wearable flexible substrate and strain sensor, and the combination is more flexible.
[0008] In an exemplary embodiment of the wearable monitoring device, the second adhesion area includes a sensitive gate positioning area, and the setting position of the sensitive gate positioning area includes a first position, and the first position corresponds to the outer end area of the sensitive gate circuit along the extension direction of its longitudinal gate.
[0009] Setting the sensitive gate positioning area at the first position can provide a target point for the sensitive gate of the sensitive gate circuit without affecting the deformation of the sensitive gate of the sensitive gate circuit. With the help of the target point, the sensitive gate circuit is less likely to deform along with the wearable flexible substrate, thereby protecting the sensitive gate circuit from damage caused by unexpected deformation.
[0010] In an exemplary embodiment of the wearable monitoring device, the setting position of the sensitive gate positioning area also includes a second position, and the second position corresponds to the outer area on both sides of the sensitive gate circuit. The above scheme can enhance the target point effect provided for the sensitive gate of the sensitive gate circuit.
[0011] In an exemplary embodiment of the wearable monitoring device, the second adhesive area further includes a transmission path positioning area, and the transmission path positioning area is set at a position corresponding to the outer area on both sides of the transmission path. The transmission path positioning area can help locate the transmission path.
[0012] In an exemplary embodiment of the wearable monitoring device, the transmitting device is composed of a flexible circuit board.
[0013] In an exemplary embodiment of the wearable monitoring device, the first adhesive region and the second adhesive region are Velcro connection structures. This connection method makes the overall connection more convenient and can achieve repeatable detachable connection. In addition, the Velcro connection structure can provide a more reliable target point for the sensitive gate of the sensitive gate circuit.
[0014] In an exemplary embodiment of the wearable monitoring device, a connection hole is formed on the carrier film, the deformation detection circuit and the signal transmitter are respectively hot pressed onto two surfaces of the carrier film, and the transmission path is electrically connected to the signal transmitter through the connection hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0016] Figure 1 A schematic diagram of the structure of a disassembled state is used to illustrate an exemplary implementation of a wearable device.
[0017] Figure 2A schematic diagram of a combined state structure for illustrating an exemplary implementation of a wearable device.
[0018] Figure 3 is a partial cross-sectional view of an illustrative embodiment of a strain sensor.
[0019] Description of labels:
[0020] 10 Wearable Flexible Substrate
[0021] 12. First Adhesion Area
[0022] 20 Strain Sensors
[0023] 21 Carrier film
[0024] 212 connection holes
[0025] 22 Second adhesion area
[0026] 222 sensitive gate positioning area
[0027] 224 Transmission Path Location Area
[0028] 23 deformation detection circuit
[0029] 232 sensitive gate circuit
[0030] 234 transmission channel
[0031] 24Signal transmitter DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.
[0033] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.
[0034] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.
[0035] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.
[0036] Figure 1 A schematic diagram of the structure of a disassembled state is used to illustrate an exemplary implementation of a wearable device. Figure 2 A schematic diagram of a combined state structure for illustrating an exemplary embodiment of a wearable device. As shown in the figure, the wearable monitoring device includes a wearable flexible substrate 10 and a strain sensor 20.
[0037] The wearable flexible substrate 10 is for example Figure 1 In the left structure, the wearable flexible substrate 10 can be a flexible substrate worn on the human body in any form, for example, it can be clothing itself, including tops, coats, sleeves, gloves, etc., or it can be a flexible substrate attached to clothing. A first adhesion area 12 is provided on the wearable flexible substrate 10.
[0038] The strain sensor 20 is, for example, Figure 1 In the right structure of the figure, the strain sensor 20 includes a carrier film 21, a deformation detection circuit 23, a signal transmitter 24, and a second adhesion area 22. The carrier film 21 is, for example, a TPU film. The deformation detection circuit 23 is made of liquid metal. For example, liquid metal ink can be printed on one surface of the carrier film 21 in a fixed pattern by screen printing technology, and then the printed pattern is positioned to the carrier film 21 by hot pressing technology to form the deformation detection circuit 23. The deformation detection circuit 23 includes a sensitive grid circuit 232 and a transmission circuit 234, and the sensitive grid circuit 232 and the transmission circuit 234 are electrically connected to each other. The signal transmitter 24 is also hot pressed to the carrier film 21, and the signal transmitter 24 is electrically connected to the transmission path 234 to obtain the strain signal emitted by the sensitive grid circuit 232 through the transmission path 234, and the strain signal is emitted. After the external communication device (not shown in the figure) obtains the strain signal emitted by the signal transmitter 24, it can obtain strain data and monitor the deformation of human skin. The second adhesive region 22 is disposed on the side of the carrier film 21 where the deformation detection circuit 23 is not printed. The second adhesive region 22 can be adhered to the first adhesive region 12 to adhere the strain sensor 20 to the wearable flexible substrate 10, see Figure 2 .
[0039] In the above scheme, the strain sensor, as an independent structure, can be adhered to the first adhesion area 12 of the wearable flexible substrate 10 through its second adhesion area 22 to realize the combination of the strain sensor 20 and the wearable flexible substrate 10. Because the strain sensor 20 and the wearable flexible substrate 10 are two relatively independent individuals, the deformation of the wearable flexible substrate 10 itself will not have much impact on the strain sensor 20 during the wearing process of the wearable flexible substrate 10. And the strain sensor 20 will not affect the air permeability of the wearable flexible substrate, which is beneficial to skin health. At the same time, according to different measurement requirements and measurement positions, the corresponding wearable flexible substrate 10 and strain sensor 20 can be more conveniently selected.
[0040] exist Figure 1 In the embodiment of the wearable monitoring device shown, the second adhesive region 22 includes a sensitive grid positioning region 222 (because the second adhesive region 22 is located on the back of the carrier film in the figure, it is indicated by a dotted line). The setting position of the sensitive grid positioning region 222 includes a first position, and the first position corresponds to the outer region of the end of the sensitive grid circuit 232 along the extension direction L of its longitudinal grid. Because the setting position of the sensitive grid positioning region 222 needs to be set according to the position of the sensitive grid circuit 232, but the sensitive grid positioning region 222 and the sensitive grid circuit 232 of the second adhesive region 22 are respectively located on two opposite surfaces of the carrier film, so the "corresponding" here means that the two positions are in a corresponding relationship on the two opposite surfaces of the carrier film, and the same situation will not be repeated below.
[0041] Therefore Figure 1 The first position of the upper left sensitive gate positioning area 222 is determined as follows: Figure 1 The sensitive gate circuit 232 at the upper left has a longitudinal gate extending in the direction of L in the figure. The outer region of the end of the sensitive gate circuit 232 along the longitudinal gate extending direction L, i.e., the outer region of the end of the sensitive gate circuit 232 pointing upward along the extending direction L in the figure, and the position of the carrier film 21 corresponding to the outer region of the end facing the paper surface, i.e., the first position of the sensitive gate positioning region 222.
[0042] Setting the sensitive gate positioning area 222 at the above-mentioned first position can provide a target point for the sensitive gate of the sensitive gate circuit 232 without affecting the sensitive gate deformation of the sensitive gate circuit 232. With the help of the target point, the sensitive gate circuit 232 is less likely to deform along with the wearable flexible substrate 10, thereby protecting the sensitive gate circuit 232 from damage due to unexpected deformation.
[0043] Of course, the above target point can be further strengthened as needed. For example, the setting position of the sensitive gate positioning area 222 can also include a second position, and the second position corresponds to the outer area on both sides of the sensitive gate circuit 232, see Figure 1The setting position of the lower right sensitive gate positioning area 222.
[0044] exist Figure 1 In the embodiment of the wearable monitoring device shown, the second adhesive area 22 further includes a transmission path positioning area 224, and the setting position of the transmission path positioning area 224 corresponds to the outer area on both sides of the transmission path 234. The transmission path positioning area 224 can help locate the transmission path 234.
[0045] In one embodiment of the wearable monitoring device, the signal transmitting device 24 may be formed by a flexible circuit board.
[0046] In one embodiment of the wearable monitoring device, a Velcro connection structure is formed between the first adhesive region 12 and the second adhesive region 22. This connection method makes the overall connection more convenient and can achieve a repeatable detachable connection. In addition, the Velcro connection structure can provide a more reliable target point for the sensitive gate of the sensitive gate circuit 232.
[0047] Figure 3 FIG. 1 is a partial cross-sectional view of a schematic embodiment of a strain sensor. Figure 3 As shown, a connecting hole 212 is formed on the carrier film 21 of the strain sensor, the deformation detection circuit 23 and the signal transmitting device 24 are respectively hot pressed to the two surfaces of the carrier film 21, and the transmission path 234 is electrically connected to the signal transmitting device 24 through the connecting hole 212. The above structure is more convenient for the production of the strain sensor 20 and can ensure the stable connection between the signal transmitting device 24 and the transmission path 234.
[0048] The above is only a specific implementation of the present application. Under the above teachings of the present application, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of the present application, and the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A wearable monitoring device, characterized in that: It includes: A wearable flexible substrate (10), wherein the wearable flexible substrate (10) is provided with a first adhesion area (12); A strain sensor (20), the strain sensor (20) comprising: A carrier film (21), A deformation detection circuit (23) is formed by printing liquid metal onto the carrier film (21) and then hot pressing, wherein the deformation detection circuit (23) comprises a sensitive grid circuit (232) and a transmission path (234) electrically connected to the sensitive grid circuit. a signal emitting device (24) heat-pressed onto the carrier film (21), the signal emitting device (24) being electrically connected to the transmission path (234) so as to obtain a strain signal emitted by the sensitive gate circuit (232) through the transmission path (234) and emit the strain signal; A second adhesive region (22), the second adhesive region (22) being arranged on a side of the carrier film (21) on which the deformation detection circuit (23) is not printed, and the second adhesive region (22) being capable of adhering to the first adhesive region (12) so as to adhere the strain sensor (20) to the wearable flexible substrate (10).
2. The wearable monitoring device according to claim 1, characterized in that: The second adhesion area (22) includes a sensitive gate positioning area (222), and the setting position of the sensitive gate positioning area (222) includes a first position, and the first position corresponds to the end outer area of the sensitive gate circuit (232) along the extension direction (L) of its longitudinal gate.
3. The wearable monitoring device according to claim 2, characterized in that: The setting position of the sensitive gate positioning area (222) also includes a second position, and the second position corresponds to the external area on both sides of the sensitive gate circuit (232).
4. The wearable monitoring device according to claim 2, characterized in that: The second adhesion area (22) further includes a transmission path positioning area (224), and the setting position of the transmission path positioning area (224) corresponds to the external areas on both sides of the transmission path (234).
5. The wearable monitoring device according to claim 1, characterized in that: The signal transmitting device (24) is composed of a flexible circuit board.
6. The wearable monitoring device according to claim 1, characterized in that: A Velcro connection structure is formed between the first adhesive area (12) and the second adhesive area (22).
7. The wearable monitoring device according to claim 1, characterized in that: The carrier film (21) is formed with a connection hole (212). The deformation detection circuit (23) and the signal emitting device (24) are respectively heat-pressed onto two surfaces of the carrier film (21), and the transmission path (234) is electrically connected to the signal emitting device (24) through the connection hole (212).