CN111109778B

CN111109778B - Watchband and wearable equipment

Info

Publication number: CN111109778B
Application number: CN201911365896.2A
Authority: CN
Inventors: 程天宇; 付康; 李�杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2023-10-20
Anticipated expiration: 2039-12-26
Also published as: WO2021129519A1; CN111109778A

Abstract

The application provides a watchband and wearable equipment, and relates to the technical field of wearable equipment. The watchband includes: a band body and a water-absorbing expansion portion; the watchband body comprises a top layer and a bottom layer which are stacked along the direction perpendicular to the watchband body; the surface of the bottom layer, which is away from the top layer, forms the inner surface of the watchband body; the water-absorbing expansion part is arranged between the top layer and the bottom layer, and the bottom layer is provided with a communication part for exposing the water-absorbing expansion part; the water-absorbing expansion part can absorb water and expand, and the thickness of the water-absorbing expansion part along the direction vertical to the watchband body is increased. According to the watchband and the wearable device provided by the application, after sweat is accumulated between the wrist of a wearer and the watchband, the sweat-absorbing expansion part can absorb sweat to tighten the wrist, so that the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring function is improved. Meanwhile, the watchband provided by the application can absorb sweat and improve wearing comfort.

Description

Watchband and wearable equipment

Technical Field

The application relates to the technical field of wearable equipment, in particular to a watchband and the wearable equipment.

Background

The intelligent wearing product has the functions of being worn next to the skin, detecting the health condition of the body at any time and the like. In recent years, more and more people have come to pay attention to the acceptance and use of smart wearable products.

In the related art, a smart watch has a dial plate and a band attached to the dial plate, which can be installed around a wrist of a wearer. The dial plate is provided with a sensor for monitoring health indexes such as heart rate of a wearer. When the wristband is strapped around the wrist, the sensor may be in contact with the wrist to detect a health indicator of the wearer.

However, in the smart watch in the related art, a wearer easily slides and shakes the wrist during exercise, and the health detection function of the smart watch is affected, so that the health detection result is inaccurate.

Disclosure of Invention

The application provides a watchband and wearable equipment, which are used for solving the problem that the health detection result of an intelligent bracelet is inaccurate when a wearer moves in the related technology.

The present application provides a wristband comprising: a watchband body; the water-absorbing expansion part is arranged on the watchband body; and the water-absorbing expansion part can absorb water and expand, and the thickness of the water-absorbing expansion part along the direction vertical to the watchband body is increased. According to the watchband provided by the embodiment of the application, after sweat is accumulated between the wrist of a wearer and the watchband, the sweat-absorbing expansion part can absorb sweat to tighten the wrist, so that the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of a health monitoring function is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved.

In one possible embodiment, the wristband body comprises a top layer and a bottom layer, arranged one above the other in a direction perpendicular to the wristband body; the surface of the bottom layer, which is away from the top layer, forms the inner surface of the watchband body; the water-absorbing swelling portion is disposed between the top layer and the bottom layer, and a communication portion for exposing the water-absorbing swelling portion is disposed on the bottom layer. The wrist can be tightened by the watchband, the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring function is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, as the bottom layer is of a whole-layer structure, the water-absorbing expansion part can be covered, and the comfort and the aesthetic property of the watchband are improved.

In one possible embodiment, the water-absorbing swelling portion is a layered structure extending from one end of the top layer to the other end of the top layer along the length direction of the watchband body, and the structure is simple and easy to install.

In one possible embodiment, the water-absorbing swelling portion includes a plurality of first swelling bodies arranged in an array within the wristband body. Because the first expansion bodies are arranged at intervals, after the first expansion bodies absorb water and expand, concave-convex or wavy structures can be formed on the inner surface of the bottom layer, namely concave ventilation grooves can be formed between two adjacent first expansion bodies, the ventilation purpose can be achieved, and the comfort level of a wearer is improved.

In one possible embodiment, the distance between two adjacent first expansion bodies is 3mm to 10mm. Can provide sufficient space for the inflation of first inflation body to can form ventilative groove between skin and watchband, reach the ventilation effect, promote the travelling comfort of wearing.

In a possible embodiment, a plane parallel to the watchband body is taken as a cross section, the cross section area of each first expansion body is not smaller than 5 square millimeters, the water absorption expansion capacity of the first expansion bodies is improved, the problem that skin pain is easily caused due to the fact that the area of the first expansion bodies after the water absorption expansion is too small is avoided, and wearing comfort is improved.

In one possible embodiment, a partition wall is arranged between the top layer and the bottom layer, and the partition wall divides the top layer and the bottom layer into a plurality of accommodating cavities which are arranged in an array in a surrounding manner; each containing chamber contains a first expansion body. This mode can alleviate the expansion of first inflation body along being on a parallel with watchband body direction to make first inflation body can be fast along the thickness inflation of perpendicular to watchband body, make the watchband can tighten the wrist fast.

In one possible embodiment, the communicating portion includes a plurality of through holes formed in an inner surface of the watchband body and penetrating through the bottom layer, and the through holes are simple in structure and convenient to process.

In one possible embodiment, the plurality of through holes are arranged in an array on the inner surface of the wristband body; the array comprises M rows arranged along the length direction of the watchband body and N columns arranged along the width direction of the watchband body; wherein M is a natural number of 1 or more, and N is a natural number of 1 or more. The plurality of through holes arranged in the array can enable the water absorption expansion part to uniformly absorb sweat, and meanwhile, the open pore area of the bottom layer is reduced, and the strength and the attractiveness of the watchband are improved.

In one possible embodiment, the communication portion includes at least one through slot provided on an inner surface of the wristband body, the through slot extending through the bottom layer and to the water-absorbing swelling portion. Thereby increasing the contact area between the water-absorbing swelling part and sweat, and being beneficial to the rapid absorption of sweat.

In one possible embodiment, the at least one through slot extends along the length of the wristband body; or at least one through groove extends along the width direction of the watchband body so as to further increase the contact area of the water absorption expansion part and sweat.

In one possible embodiment, there is a gap between the edge of the top layer and the edge of the bottom layer that allows the water-swelling portion between the top layer and the bottom layer to expand or retract by dehydration, the water-swelling of the water-swelling portion can be achieved so that the thickness of the wristband can be varied as the water-swelling portion absorbs water or dehydrates.

In one possible embodiment, the top layer edge and the bottom layer edge are connected by an elastic sidewall that allows the water-swelling portion between the top layer and the bottom layer to swell or dewater and retract, the water-swelling portion can swell so that the thickness of the wristband can be changed as the water-swelling portion swells or dewaters.

In one possible embodiment, the edges of the top layer and the bottom layer are connected, and the top layer and the bottom layer are elastic layers with variable thickness, so that the water-absorbing expansion of the water-absorbing expansion part can be realized, and the thickness of the watchband can be changed along with the water absorption or dehydration of the water-absorbing expansion part.

In one possible embodiment, the water-absorbing expansion part is connected to the inner surface of the watchband body, and the structure is simple and easy to realize.

In one possible embodiment, the water-absorbing swelling portion includes a plurality of second swelling bodies arranged in an array on the band body. Because the second expansion bodies are arranged at intervals, after the second expansion bodies absorb water and expand, concave-convex or wavy structures can be formed on the inner surface of the watchband, namely concave ventilation grooves can be formed between two adjacent second expansion bodies, the ventilation purpose can be achieved, and the comfort level of a wearer is improved.

In one possible embodiment, the distance between two adjacent second expansion bodies is 3mm to 10mm. After the water-absorbing expansion part absorbs water and expands, the annular perimeter surrounded by the inner surface of the watchband cannot be reduced too much, and wearing comfort is improved.

In a possible embodiment, the plane parallel to the watchband body is taken as a cross section, the cross section area of each second expansion body is not smaller than 5 square millimeters, the water absorption expansion capacity of the second expansion bodies is improved, the problem that skin pain is easily caused due to the fact that the area of the second expansion bodies after the water absorption expansion is too small is avoided, and wearing comfort is improved.

In one possible embodiment, the water-absorbing swelling portion is a layered structure extending from one end of the band body to the other end of the band body, and is simple in structure and easy to install.

In one possible embodiment, the watchband body includes a first material layer and a second material layer that are stacked along a direction perpendicular to the watchband body, and the water-absorbing expansion part is disposed on an inner surface of the second material layer facing away from the first material layer, and toughness and strength of the watchband can be adjusted by compounding the first material layer and the second material layer, so that wearing comfort of the watchband is improved.

In one possible embodiment, the area of the orthographic projection of the water-absorbing expansion on the wristband body is 30% to 60% of the area of the wristband body. Therefore, the water-absorbing expansion part can tighten the wrist after absorbing water and expanding, and the air permeability of the watchband is improved.

In one possible embodiment, the thickness variation of the wristband after the water-swelling portion swells with water is 1.5mm or less. After the water-absorbing expansion part absorbs water and expands, the annular perimeter surrounded by the inner surface of the watchband is not reduced too much, and the wearing comfort level is improved.

In one possible embodiment, the water-absorbing swelling part is clamped and fixed on the watchband body; or the water-absorbing expansion part is adhered to the watchband body; or the water-absorbing expansion part is fixed on the watchband body through a chemical molding process. The above embodiments can realize the fixed connection between the water absorption expansion part and the watchband body, and improve the fixing effect.

In one possible embodiment, the watchband body is provided with a clamping groove, and the water-absorbing expansion part is provided with a protrusion which is clamped and fixed with the clamping groove.

In one possible embodiment, the clamping groove may include a first section and a second section sequentially disposed along a direction perpendicular to the watchband body, the second section may be located on a side of the first section close to the skin of the wearer, and a cross-sectional area of the first section may be larger than a cross-sectional area of the second section.

The wearable device provided by the application comprises a device main body and a watchband, wherein the watchband is arranged on the device main body. After sweat is accumulated between the wrist of the wearer and the watchband, the sweat-absorbing expansion part can absorb sweat to tighten the wrist, so that the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring result is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved.

Drawings

The following detailed description of the embodiments of the application is provided in connection with the accompanying drawings, it being understood that the embodiments described herein are for purposes of illustration and explanation only, and the application is not limited to the embodiments described below.

Fig. 1 is a schematic diagram of the overall structure of a wearable device according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a wearable device according to another embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of FIG. 2 at A-A;

FIG. 4 is a schematic view of the water-swellable component of FIG. 3 after swelling;

FIG. 5 is another cross-sectional schematic view at A-A of FIG. 2;

FIG. 6 is a schematic view of the water-swellable component of FIG. 5 after swelling;

FIG. 7 is a schematic view showing a connection between the water-swelling portion and the band body of FIG. 2;

FIG. 8 is a further schematic cross-sectional view taken at A-A of FIG. 2;

FIG. 9 is a schematic diagram of a wearable device according to an embodiment of the application;

FIG. 10 is a schematic cross-sectional view at B-B in FIG. 9;

fig. 11 is a schematic structural diagram of a wearable device according to another embodiment of the present application;

FIG. 12 is a schematic cross-sectional view taken at C-C of FIG. 11;

FIG. 13 is another cross-sectional schematic view taken at C-C of FIG. 11;

FIG. 14 is a further schematic cross-sectional view taken at C-C of FIG. 11;

FIG. 15 is a schematic view of a structure of the communication portion in FIG. 11;

FIG. 16 is a schematic view of another structure of the communication portion in FIG. 11;

fig. 17 is a schematic structural view of a wearable device according to still another embodiment of the present application;

FIG. 18 is a schematic cross-sectional view taken at D-D of FIG. 17;

FIG. 19 is another cross-sectional view taken at D-D of FIG. 17;

fig. 20 is a further schematic cross-sectional view at D-D in fig. 17.

Reference numerals illustrate:

100: a first wristband;

200: a second wristband;

300: a dial;

400: a watchband body;

410: a first material layer;

420: a second material layer;

430: a top layer;

440: a bottom layer;

441: a communication section;

442: a through hole;

443: a through groove;

450: a clamping groove;

460: a partition wall;

470: a groove;

480: an elastic sidewall;

500: a water-absorbing expansion part;

510: a second expansion body;

520: a first expansion body;

530: a protrusion.

Detailed Description

The smart watch in the related art has a dial plate and a watchband connected to the dial plate, and the watchband can be wound around a wrist of a wearer. The dial plate is provided with a sensor for monitoring health indexes such as heart rate of a wearer. When the wristband is strapped around the wrist, the sensor may be in contact with the wrist to detect a health indicator of the wearer. However, wearing the smart phone meter by the wearer can sweat in the course of exercise, and the sweat is deposited between watchband and the wrist, causes the smart watch to slide and rock at the wrist easily, influences the health detection function of smart watch, leads to the health testing result inaccurate.

In order to solve the problems, the embodiment of the application provides the watchband and the wearable device, wherein the watchband can absorb water and expand in volume, and after the wrist of a wearer sweats, the watchband can tighten the wrist, so that the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of a health monitoring function is improved.

The wearable device provided by the embodiment of the application is a portable device which is directly worn on or integrated into clothes or accessories of a user, and the wearable device can comprise, but is not limited to, a watch, a smart bracelet, a smart wristband, smart glasses, a ring or a helmet and the like. For convenience of explanation, a smart watch will be described in detail below as an example. The watchband provided by the embodiment of the application can be adaptively adjusted according to different wearing positions of the wearable equipment.

Fig. 1 is a schematic diagram of an overall structure of a wearable device according to an embodiment of the present application. Referring to fig. 1, the smart watch includes a dial 300 and a first wristband 100 and a second wristband 200 connected to two sides of the dial 300, and it can be understood that the wristband provided by the embodiment of the application may be the first wristband 100, the second wristband 200, or a combination of the first wristband 100 and the second wristband 200.

In this embodiment, the dial 300 may be a device main body capable of implementing functions of the smart watch, the dial 300 may be provided with a display screen and a rear housing, and a cavity enclosed by the display screen and the rear housing may be internally provided with components such as a chip, a sensor, a battery, and the like.

The sensor is capable of detecting various health indicators of the body of the wearer, such as heart rate, body temperature, or blood pressure information. The types of sensors include, but are not limited to, temperature sensors capable of detecting body temperature, vibration sensing sensors or photosensors capable of detecting heart rate, or pressure sensors for detecting blood pressure, etc.

The chip can be connected with the sensor so as to convert signals detected by the sensor into corresponding health indexes. The chip may include one or more processing units, such as: which may include an application processor (Application processor, AP), a modem processor, a memory, a digital signal processor (Digital signal processor, DSP), a baseband processor, and/or a Neural network processor (Neural-network processing unit, NPU), etc.

The display screen may be a liquid crystal display (Liquid Crystal Display, LCD) or an Organic Light-Emitting Diode (OLED), and the display screen may be used for displaying various information such as time, health index, information, and the like.

Of course, the display screen may be a touch screen, or an operation member such as a key may be provided on the display screen.

The battery can provide power for the display, controller, processor, etc., and the battery type includes, but is not limited to, lithium batteries, dry cells, storage batteries, etc.

In addition, a wireless communication module may be installed in the dial 300, and the wireless communication module may provide a solution for wireless communication including wireless local area network (Wireless local area networks, WLAN), bluetooth (BT), frequency modulation (Frequency modulation, FM), infrared technology (IR), etc. applied to the smart watch. The wireless communication module can realize communication connection between the intelligent watch and external equipment, such as a mobile phone, a computer and other terminals.

The first and second bands 100 and 200 are respectively connected to opposite sides of the dial 300, and the first and second bands 100 and 200 may be integrally constructed, or the first and second bands 100 and 200 may be respectively hinged to the dial 300.

The connection between the first wristband 100 and the second wristband 200 may be various, for example, the first wristband 100 may be provided with a plurality of wristband holes, the second wristband 200 may be provided with a clasp including a frame hinged to the second wristband 200 and a pin passing through the frame, and the pin may pass through any one of the wristband holes and abut against the frame.

Alternatively, the first wristband 100 may be provided with a fastening hole, and the second wristband 200 may be provided with a fastener that can be fastened in the fastening hole, so that the first wristband 100 may be fastened and fixedly connected with the second wristband 200.

It will be appreciated that when the wearer wears the smart band, the dial 300 may be attached to the wrist by adjusting the connection positions of the first and second bands 100 and 200, and at this time, the sensor in the dial 300 may be in contact with the skin, so that the health index of the wearer may be accurately detected and transmitted to the terminal, or displayed on the display screen.

However, when the wearer wears the smart watch for exercise, the body sweats, resulting in sweat accumulation between the wrist skin and the inside of the smart watch, which can cause the smart watch to slip and shake on the wrist, affecting the health detection function of the smart watch. In order to solve this problem, the present application improves the structure of the wristband by the following embodiment. It will be appreciated that in the embodiment of the present application, the thickness direction is a direction perpendicular to the wristband, the thickness is a dimension along the thickness direction, the length direction is an extending direction of the wristband, and the width direction is a direction perpendicular to both the thickness direction and the length direction, and the width and length are divided into a dimension along the width direction and the length direction.

Example 1

Fig. 2 is a schematic structural diagram of a wearable device according to another embodiment of the present application; the surface shown in fig. 2 is an inner surface of the watchband, that is, a surface of the smart watch, which is close to or in contact with the wrist after being worn. Referring to fig. 2, in the present embodiment, the wristband includes: a band body 400 and a water swelling portion 500, the water swelling portion 500 being provided on an inner surface of the band body 400; the water-swelling portion 500 includes a plurality of second swelling bodies 510 (portions inside the black thick wire frame in the drawing) arrayed on the band body 400. And each of the second swelling bodies 510 of the water-swelling portion 500 is capable of swelling in water so that the thickness of the water-swelling portion 500 increases in a direction perpendicular to the band body 400, i.e., at least a portion of the inner surface of the band protrudes in a direction approaching the skin of the wearer.

The band body 400 may be a conventional band structure, and the band body 400 may be made of various materials, for example, a soft plastic band made of soft plastic materials such as fluorine rubber, silica gel, thermoplastic polyurethane elastomer rubber (Thermoplastic polyurethanes, TPU), and plastic vulcanized silica gel (Thermoplastic silicone vulcanizate, TPSIV). Alternatively, the band body 400 may be a leather band made of leather or the like. Alternatively, the band body 400 may be a metal band made of a metal material such as stainless steel, copper, platinum, or tungsten-titanium alloy.

In this embodiment, the water-swelling portion 500 is provided on the inner surface of the band body 400. The water-absorbing expansion part 500 includes a plurality of second expansion bodies 510 arranged in an array on the watchband body 400, and the material of the second expansion bodies 510 is the same as that of the water-absorbing expansion part 500. The water-swelling portion 500 swells by absorbing water, and is represented by at least one second swelling body 510 swelling by absorbing water. The second expansion body 510 may have a cross section parallel to the band body 400, and may have various shapes such as an oval shape and a rectangular shape.

The material of the second expansion body 510 may be various, for example, the second expansion body 510 may be formed by copolymerizing a soft rubber material and a hydrophilic group, or by blending a soft rubber material and a hydrophilic substance. For example, styrene-butadiene rubber and polyacrylic acid blend modifications.

Among them, the hydrophilic group generally includes a hydroxyl group, a carboxyl group, an amino group, and the like. The hydrophilic substances generally include starches, celluloses, polyacrylic acids, maleic anhydrides, modified bentonite, modified white carbon black, polyvinyl alcohols, polyurethane prepolymers, polyalkylene ethers, and the like.

The starch-based hydrophilic substance may include a saponified product of a starch-acrylonitrile graft polymer, a graft polymer of starch-acrylic acid, and the like. The cellulose-based hydrophilic substance may include cellulose-acrylonitrile graft polymer, carboxymethyl cellulose crosslinked product, and the like. The polyvinyl alcohol-based hydrophilic substance may include a crosslinked product of polyvinyl alcohol, a saponified product of acrylonitrile-vinyl acetate copolymer, and the like. The acrylic hydrophilic substance may include polyacrylate (mainly sodium salt) (PNaAA), saponification product of methyl methacrylate-vinyl acetate copolymer, and the like. The polyalkylene ether hydrophilic substance may include a product of crosslinking polyvinyl alcohol with dipropylene ester, and the like. The maleic anhydride hydrophilic substances comprise alternating copolymer of isobutene-maleic anhydride, anionic polyacrylamide (PHPAM-1), etc.

Optionally, an antibacterial component may be added to the water-absorbing expansion part 500, where the antibacterial component may be a conventional antibacterial component such as silver ion, chitosan, etc., so as to avoid the problems of bacteria breeding, odor generation or skin irritation after the water-absorbing expansion part 500 absorbs water.

In addition, it is understood that the water-absorbing expansion of the water-absorbing expansion portion 500 may be an integral expansion or an expansion in a direction perpendicular to the thickness direction of the band body 400, and may be specifically set according to the material properties.

The second expansion bodies 510 may be arranged in various ways, for example, a plurality of second expansion bodies 510 may be arranged in an array on the inner surface of the wristband body 400, as in fig. 2, a plurality of second expansion bodies 510 are arranged in two rows, and a plurality of second expansion bodies in each row are arranged at intervals along the length direction of the wristband body 400, and for the wristband body 400 provided with the wristband hole, the two rows of second expansion bodies 510 may be located at two sides of the wristband hole. Alternatively, the second expansion body 510 may be arranged in an irregular manner on the band body 400.

In addition, there are various connection modes between the band body 400 and the water swelling portion 500. Fig. 3 is a schematic cross-sectional view of fig. 2 A-A, i.e., an initial state before the water swelling portion 500 absorbs water. FIG. 4 is a schematic view of the water-swellable component of FIG. 3 after swelling; in one possible implementation, referring to fig. 3 and 4, the wristband body 400 may have a flat inner surface, and the plurality of second expansion bodies 510 may be adhered to the inner surface of the wristband body 400 using a separate adhesive or the like. Alternatively, the band body 400 and the plurality of second swelling bodies 510 may be integrally formed by a chemical process such as bicolor molding. The inner surface of the band body 400 may be a flat surface, i.e., the water-swelling portion 500 may be convexly disposed at the inner surface of the band body 400 in the initial state.

FIG. 5 is another cross-sectional schematic view at A-A of FIG. 2; FIG. 6 is a schematic view of the water-swellable component of FIG. 5 after swelling; in another possible implementation, referring to fig. 5 to 6, the inner surface of the wristband body 400 may be provided with grooves 470, each of the second expansion bodies 510 in the water-absorbing swelling portion 500 may be engaged in one groove 470 by interference fit or the like, or the second expansion bodies 510 may be adhered in the grooves 470 by adhesive or the like.

Referring to fig. 5, in an initial state of the water swelling portion 500 before water swelling, an inner surface of the second swelling body 510 near the skin of the wearer may be disposed flush with a portion of an inner surface of the band body 400 around the groove 470. Of course, in other embodiments, the inner surface of the water-swelling portion 500 near the skin of the wearer in the initial state of the second swelling body 510 may be lower or slightly higher than the inner surface of the portion of the band body 400 around the groove 470, which is not limited herein.

Referring to fig. 6, when the water-swelling portion 500 swells by absorbing water, the inner surface of the second swelling body 510 may protrude from the inner surface of the portion of the band body 400 around the groove 470.

In another possible implementation, the water-swellable component 500 may be snap-fitted to the wristband body 400. FIG. 7 is a schematic view showing a connection between the water-swelling portion and the band body of FIG. 2; referring to fig. 7, the watchband body 400 is provided with a slot 450, and the water-absorbing expansion part 500 has a protrusion 530 engaged with the slot 450, which is simple in structure and convenient for replacing the water-absorbing expansion part 500.

Alternatively, the slot 450 may include a first section and a second section disposed in sequence in a direction perpendicular to the wristband body 400, the second section may be located on a side of the first section proximate the wearer's skin, and the cross-sectional area of the first section may be greater than the cross-sectional area of the second section, e.g., the slot 450 may be a "T-shaped" structure. The shape of the protrusion 530 may be the same as the shape of the locking groove 450, so that the locking strength between the water swelling portion 500 and the band body 400 may be improved.

The above embodiments can realize the fixed connection between the water swelling portion 500 and the band body 400, and improve the fixing effect.

In this embodiment, when the wearer wears intelligent wrist-watch motion, sweat is easy to accumulate between wrist and the intelligent hand limit, and the expansion portion 500 that absorbs water can be contacted with the wrist, and after the wrist sweats, the expansion of sweat is absorbed to at least part second expansion body 510, and the volume of second expansion body 510 increases for the internal surface of whole watchband (including watchband body and expansion portion that absorbs water) is protruding to the direction that is close to skin, and the watchband can tighten the wrist, prevents that the intelligent wrist-watch from rocking or sliding on the wrist, has improved the accuracy of health monitoring function. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the second expansion bodies 510 are arranged at intervals, after the second expansion bodies absorb water and expand, a concave-convex or wave-shaped structure can be formed on the inner surface of the watchband, namely, a concave ventilation groove can be formed between two adjacent second expansion bodies 510, the ventilation purpose can be achieved, and the comfort level of a wearer is improved.

It can be understood that the process of absorbing moisture or sweat by the water-absorbing expansion part 500 is a physical change, and the water-absorbing expansion part 500 after absorbing water can be dried, dried or treated by a material with higher water absorption (such as a drying agent, limestone, etc.), so that the volume of the water-absorbing expansion part 500 is reduced back to the original state. Therefore, the water swelling portion 500 can be repeatedly used.

Optionally, the distance between two adjacent second expansion bodies 510 is 3mm to 10mm, which can provide enough space for the expansion of the second expansion bodies 510, and can form ventilation grooves between the skin and the watchband, thereby achieving ventilation effect and improving wearing comfort.

Optionally, the plane parallel to the watchband body 400 is taken as a cross section, the cross section area of each second expansion body 510 is not less than 5 square millimeters, the water absorption expansion capacity of the second expansion bodies 510 is improved, the problem that skin pain is easily caused due to too small area of the second expansion bodies 510 after water absorption expansion is avoided, and wearing comfort is improved.

Alternatively, the area of the orthographic projection of all the second swelling bodies 510 on the inner surface of the band body 400 accounts for 30% to 60% of the inner surface area of the band body 400, so that the water-absorbing swelling portion 500 can grip the wrist after the water-absorbing swelling and enhance the air permeability of the band.

Optionally, with the dimension perpendicular to the direction of the watchband body 400 as the thickness, the difference between the thickness of the second expansion body 510 after the second expansion body 510 absorbs water and expands and the thickness of the second expansion body 510 before the second expansion body absorbs water and expands may be less than or equal to 1.5mm, so that the circumference of the ring surrounded by the inner surface of the watchband after the second expansion body 510 absorbs water and expands is not reduced too much, and wearing comfort is improved.

The above is an improvement of the structure and arrangement of the water-swelling portion 500 and the connection of the water-swelling portion 500 to the band body 400, and fig. 8 is a schematic cross-sectional view of A-A of fig. 2; referring to fig. 8, as another structural mode of the band body 400, the band body 400 includes a first material layer 410 and a second material layer 420 stacked in a direction perpendicular to the band body 400, and the water swelling portion 500 is provided at an inner surface of the second material layer 420 facing away from the first material layer 410. The first material layer 410 and the second material layer 420 may be made of different materials, for example, the first material layer 410 may be a metal layer, and the second material layer 420 may be a leather layer. The second material layer 420 and the first material layer 410 may be combined into the entire wristband body 400, wherein the second material layer 420 may be disposed adjacent to the skin of the wearer. The inner surface of the second material layer 420 facing away from the first material layer 410 may be the inner surface of the wristband body 400.

The connection manner between the first material layer 410 and the second material layer 420 may also be various, such as mechanical stitching, bonding, and fastening, and the like, which is not limited herein, and the toughness and strength of the watchband may be adjusted by compounding the first material layer 410 and the second material layer 420, so as to improve the wearing comfort of the watchband.

The water swelling portion 500 may be disposed at the inner surface of the second material layer 420, and of course, the water swelling portion 500 may further include a plurality of second swelling bodies 510, and the plurality of second swelling bodies 510 may be disposed at the inner surface of the second material layer 420. The connection manner between the water-swelling portion 500 and the second material layer 420 may refer to the connection manner between the water-swelling portion 500 and the watchband body 100 in the above embodiment, and will not be described herein.

Alternatively, the first material layer 410 may be a leather layer or a metal layer, and the second material layer 420 may be a soft gel layer. The leather layer or the metal layer can be selected according to wearing requirements, the soft adhesive layer is close to the skin, flexibility of the inner layer of the watchband can be improved, and wearing comfort level is improved.

The watchband provided in the present embodiment is provided by providing the watchband body 400 and the water swelling part 500, the water swelling part 500 being provided on the inner surface of the watchband body 400; the water-swelling portion 500 includes a plurality of second swelling bodies 510 arrayed on the band body 400. And after the wrist of the wearer sweats, the water-absorbing expansion part 500 can absorb water and expand, so that the thickness dimension of the water-absorbing expansion part 500 along the direction perpendicular to the watchband body 400 is increased, the inner surface of the whole watchband protrudes towards the direction close to the skin, the watchband can tighten the wrist, the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring function is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the second expansion bodies 510 are arranged at intervals, after the second expansion bodies absorb water and expand, a concave-convex or wave-shaped structure can be formed on the inner surface of the watchband, namely, a concave ventilation groove can be formed between two adjacent second expansion bodies 510, the ventilation purpose can be achieved, and the comfort level of a wearer is improved.

Example two

FIG. 9 is a schematic diagram of a wearable device according to an embodiment of the application; FIG. 10 is a schematic cross-sectional view at B-B in FIG. 9; the surface shown in fig. 9 is an inner surface of the watchband, that is, a surface of the smart watch that is close to or in contact with the wrist after being worn.

Referring to fig. 9 and 10, in the present embodiment, the wristband includes: a band body 400 and a water-swelling portion 500 (a portion inside a black thick wire frame in the drawing), the water-swelling portion 500 being provided on an inner surface of the band body 400; the water-swelling portion 500 may extend from one end of the band body 400 to the other end of the band body 400. And the water-swelling portion 500 is capable of swelling by absorbing water, so that the thickness of the water-swelling portion 500 in a direction perpendicular to the band body 400 increases, i.e., at least a portion of the inner surface of the band protrudes in a direction approaching the wearer's skin.

The water swelling portion 500 is provided on the inner surface of the band body 400, and the two members may be connected in various manners, for example, the water swelling portion 500 may be adhered to the inner surface of the band body 400 using an adhesive or the like. Alternatively, the band body 400 and the water swelling portion 500 may be integrally formed by a chemical process such as bicolor molding. Furthermore, the water-swelling portion 500 may be embedded in the inner surface of the watchband body 400 by a variety of mechanical connection methods such as interference fit and engagement. For the connection between the surface tape body 400 and the water-swelling portion 500 in the above-described respective embodiments (for example, the connection in fig. 3, 5, 7, etc.) may be specifically referred to.

The water-swelling portion 500 can swell by absorbing water, and the material thereof may be various, for example, the water-swelling portion 500 may be formed by copolymerizing a soft gel material and a hydrophilic group, or by blending a soft gel material and a hydrophilic substance. For example, styrene-butadiene rubber and polyacrylic acid blend modifications.

In this embodiment, the water-swelling portion 500 may extend from one end of the watchband body 400 to the other end of the watchband body 400, that is, the water-swelling portion 500 may have a strip-shaped structure, and the cross section parallel to the watchband body 400 may be a cross section, and the cross section of the water-swelling portion 500 may have various shapes such as an ellipse, a rectangle, and the like. The area of its orthographic projection on the wristband body 400 may be equal to or smaller than the area of the inner surface of the wristband body 400. It will be appreciated that the water-swellable agent 500 may cover the entire inner surface of the wristband body 400, or cover a portion of the inner surface of the wristband body 400.

When the wearer wears intelligent wrist-watch motion, sweat is easy to accumulate between wrist and the intelligent hand limit, and the expansion portion 500 that absorbs water can be with wrist contact, after the wrist sweats, expansion portion 500 that absorbs water absorbs sweat and expands for the internal surface of whole watchband is to the direction protrusion near skin, and the watchband can tighten the wrist, prevents that intelligent wrist-watch from rocking or sliding on the wrist, has improved the accuracy of health monitoring function. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved.

Alternatively, the area of the orthographic projection of the water-swelling portion 500 on the inner surface of the band body 400 accounts for 30% to 60% of the inner surface area of the band body 400, so that the water-swelling portion 500 can grip the wrist after swelling and improve the air permeability of the band.

Optionally, with the dimension perpendicular to the direction of the watchband body 400 as the thickness, the difference between the thickness of the water-absorbing expansion part 500 after water-absorbing expansion and the thickness of the water-absorbing expansion part before water-absorbing expansion may be less than or equal to 1.5mm, so that the annular perimeter surrounded by the inner surface of the watchband after water-absorbing expansion of the water-absorbing expansion part 500 is not reduced too much, and wearing comfort is improved.

The watchband provided in the present embodiment is provided by providing the watchband body 400 and the water swelling part 500, the water swelling part 500 being provided on the inner surface of the watchband body 400; the water-swelling portion 500 may extend from one end of the band body 400 to the other end of the band body 400. And after the wrist of the wearer sweats, the water-absorbing expansion part 500 can absorb water and expand, so that the thickness dimension of the water-absorbing expansion part 500 along the direction perpendicular to the watchband body 400 is increased, the inner surface of the whole watchband protrudes towards the direction close to the skin, the watchband can tighten the wrist, the intelligent watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring function is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved.

Example III

Fig. 11 is a schematic structural diagram of a wearable device according to another embodiment of the present application; FIG. 12 is a schematic cross-sectional view of one of the elements C-C of FIG. 11; referring to fig. 11 and 12, the wristband includes: a band body 400 and a water-swelling portion 500 (portions inside a dotted frame in the drawing), the band body 400 including a top layer 430 and a bottom layer 440 stacked in a direction perpendicular to the band body 400; the surface of bottom layer 440 facing away from top layer 430 forms the inner surface of wristband body 400; the water swelling portion 500 is disposed between the top layer 430 and the bottom layer 440, and the water swelling portion 500 extends from one end of the top layer to the other end of the top layer. The bottom layer 440 is provided with a communication portion 441 for exposing the water swelling portion 500. The water-swellable component 500 is capable of swelling in water to increase the thickness of the water-swellable component 500, thereby making the backsheet 440 protrude in a direction approaching the skin of the wearer.

Wherein band body 400 may include a top layer 430 and a bottom layer 440 in a stacked arrangement, top layer 430 being located on a side of bottom layer 440 facing away from the wearer's skin, an inner surface of bottom layer 440 may constitute an inner surface of the entire band.

The top layer 430 may be a soft plastic wristband formed of a soft plastic material such as a fluorine gel, a silicone gel, a thermoplastic polyurethane elastomer rubber (Thermoplastic polyurethanes, TPU), a plastic vulcanized silicone gel (Thermoplastic silicone vulcanizate, TPSIV), or the like. Alternatively, the top layer 430 may be a leather wristband formed of leather or the like. Alternatively, the top layer 430 may be a metal wristband made of a metal material such as stainless steel, copper, platinum, or tungsten-titanium alloy. The bottom layer 440 may also be a soft plastic wristband, a leather wristband, or a metal wristband. The top layer 430 and the bottom layer 440 may be made of the same material or different materials, and are not particularly limited herein.

The water-swelling portion 500 is disposed between the top layer 430 and the bottom layer 440 in various manners, for example, in fig. 12, edges of the top layer 430 and the bottom layer 440 may be connected together to form a cavity between the top layer 430 and the bottom layer 440, the water-swelling portion 500 may be fixed or filled in the cavity, and at this time, the bottom layer 440 and the top layer 430 may be an elastic layer made of a material having a certain elastic deformation capability such as leather or silica gel, and the thickness of the elastic layer may be changed, so that the bottom layer 440 may protrude inward after the water-swelling portion 500 swells due to water absorption, increasing the thickness of the whole watchband.

Alternatively, FIG. 13 is another cross-sectional schematic view at C-C in FIG. 11; referring to fig. 13, there is a gap between the edge of the top layer 430 and the edge of the bottom layer 440, which allows the water swelling portion 500 between the top layer 430 and the bottom layer 440 to be swelled by water absorption or to be dehydrated and retracted to an initial state. I.e., there may be no direct connection between the top layer 430 and the bottom layer 440, and the top layer 430 and the bottom layer 440 may be connected by the water-swellable agent 500.

Alternatively, FIG. 14 is a schematic cross-sectional view of FIG. 11 at C-C; referring to fig. 14, the edges of the top layer 430 and the bottom layer 440 are connected by elastic side walls 480, and the elastic side walls 480 allow the water swelling portion 500 between the top layer 430 and the bottom layer 440 to be swelled or dehydrated to be retracted to an initial state.

The above-described various ways can achieve the water swelling of the water swelling portion 500 so that the thickness of the band can be changed with the water absorption or dehydration of the water swelling portion 500. The selection can be made according to the actual situation.

In addition, there may be various connection manners between the water-swelling portion 500 and the top layer 430 and/or the bottom layer 440, and for example, the water-swelling portion 500 may be bonded to the top layer 430 using an adhesive or the like. Alternatively, the top sheet 430 and the water-swellable 500 may be integrally formed by a chemical process such as bicolor molding. Furthermore, the water-swelling portion 500 may be embedded in the top layer 430 by a variety of mechanical connection methods such as interference fit, snap fit, etc., and reference may be made to the connection method between the surface tape body 400 and the water-swelling portion 500 in the above embodiments (for example, the connection method in fig. 3, 5, 7, etc.).

In this embodiment, in order to enable the water-swelling portion 500 to absorb sweat, the bottom layer 440 is provided with a communication portion 441 for exposing the water-swelling portion 500.

The structure of the communicating portion 441 may be various, and fig. 15 is a schematic diagram of the communicating portion in fig. 11; referring to fig. 15, the communication portion 441 may include a plurality of through holes 442 opened at an inner surface of the band body and penetrating through the bottom layer 440. The through holes 442 can be in various structures such as round holes, square holes, elliptical holes and the like, and the through holes 442 are simple in structure and convenient to process.

Optionally, a plurality of through holes 442 are arranged in an array on the inner surface of wristband body 400; and the array includes M rows disposed along the length direction of the band body 400, and N columns disposed along the width direction of the band body 400; wherein M is a natural number of 1 or more, and N is a natural number of 1 or more. The number of M and N can be selected according to the actual situation. For example, the through holes 442 may be arranged in two rows, and a plurality of through holes 442 in each row may be arranged at intervals along the length direction of the band body 400. When the band body 400 is provided with a band hole, two rows of through holes 442 may be located on both sides of the band hole. The plurality of through holes 442 arranged in an array can make the water swelling part 500 uniformly absorb sweat, and at the same time reduce the open area of the bottom layer 440, improving the strength and aesthetic property of the watchband.

FIG. 16 is a schematic view of another structure of the communication portion in FIG. 11; referring to fig. 16, the communication portion 441 includes at least one through slot 443 formed on the inner surface of the band body 400, and the through slot 443 penetrates the bottom layer 440 and extends to the water swelling portion 500. The through groove 443 may have a long strip structure, so that the contact area of the water swelling portion 500 with sweat can be increased, which is advantageous for rapid absorption of sweat.

Alternatively, as shown in fig. 16, at least one through slot 443 each extends along the length direction of the band body 400; of course, in other embodiments, at least one through slot 443 extends along the width of the wristband body 400 to further increase the contact area of the water-swelling portion 500 with sweat.

The above-mentioned structure of the communication portion 441 may enable the through holes 442 or the through grooves 443 to be distributed at each position of the water-absorbing expansion portion 500, thereby increasing the contact area between the water-absorbing expansion portion 500 and sweat and improving the water-absorbing effect thereof.

In this embodiment, when the wearer wears the smart watch and moves, sweat is easily accumulated between the wrist and the smart hand, the bottom layer 440 can be contacted with the wrist, after the wrist sweats, the water absorbing expansion part 500 absorbs sweat through the communication part 441 to expand, and the volume of the whole water absorbing expansion part 500 is increased, so that the inner surface of the bottom layer 440 protrudes towards the direction close to the skin, the wrist can be tightened by the watchband, the smart watch is prevented from shaking or sliding on the wrist, and the accuracy of the health monitoring function is improved. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the bottom layer 440 is a whole layer structure, it can cover the water swelling part 500, improving the comfort and aesthetic properties of the wristband.

Alternatively, the orthographic projection area of the water-swelling portion 500 on the top layer 430 occupies 30% to 60% of the area of the band body 400, so that the water-swelling portion 500 can tighten the wrist after swelling and improve the air permeability of the band.

Optionally, with the dimension perpendicular to the band body 400 as the thickness, the increase in the thickness of the band after the expansion of the expansion portion 500 is less than or equal to 1.5mm, and in some embodiments, limited by the direct connection between the top layer 430 and the bottom layer 440, the variation in the thickness difference of the expansion portion 500 may be slightly greater than or equal to 1.5mm, which is such that the annular perimeter enclosed by the inner surface of the band after the expansion portion 500 is expanded is not reduced too much, thereby improving wearing comfort.

The band provided in this embodiment, by providing the band body 400 and the water swelling part 500, the band body 400 includes the top layer 430 and the bottom layer 440 stacked in a direction perpendicular to the band body 400; the surface of bottom layer 440 facing away from top layer 430 forms the inner surface of wristband body 400; the water-swellable component 500 is disposed between the top layer 430 and the bottom layer 440, and the water-swellable component 500 extends from one end of the top layer to the other end of the top layer when the wearer's wrist sweats. The bottom layer 440 is provided with a communication portion 441 for exposing the water swelling portion 500. The water-swellable component 500 is capable of swelling upon absorption of water, thereby causing the backsheet 440 to protrude in a direction toward the wearer's skin. The wrist can be banded to the watchband, prevents that intelligent wrist-watch from rocking or sliding on the wrist, has improved the accuracy of health monitoring function. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the bottom layer 440 is a whole layer structure, it can cover the water swelling part 500, improving the comfort and aesthetic properties of the wristband.

Example IV

Fig. 17 is a schematic structural view of a wearable device according to still another embodiment of the present application; referring to fig. 17, the wristband includes: a band body 400 and a water-swelling portion 500 (portions inside a dotted frame in the drawing), the band body 400 including a top layer 430 and a bottom layer 440 stacked in a direction perpendicular to the band body 400; the surface of bottom layer 440 facing away from top layer 430 forms the inner surface of wristband body 400; the water swelling part 500 is disposed between the top layer 430 and the bottom layer 440, and the water swelling part 500 includes a plurality of first swelling bodies 520 arrayed within the band body 440. The bottom layer 440 is provided with a communication portion 441 for exposing the water swelling portion 500. The water-swellable agent 500 is capable of swelling upon absorption of water to increase the thickness of the water-swellable agent 500 such that the backsheet 440 protrudes in a direction approaching the skin of the wearer.

The water-swelling portion 500 may include a plurality of first swelling bodies 520 swelling in water, and the material of the first swelling bodies 520 is the same as that of the water-swelling portion 500. The water-swelling portion 500 swells by absorbing water, and is represented by the at least one first swelling body 520 swells by absorbing water. The cross section of the first expansion body 520 is an oval, rectangular, or the like, with a cross section parallel to the band body 400.

The material of the first expansion body 520 may be various, for example, the first expansion body 520 may be formed by copolymerizing a soft rubber material and a hydrophilic group, or by blending a soft rubber material and a hydrophilic substance. For example, styrene-butadiene rubber and polyacrylic acid blend modifications.

The first expansion bodies 520 may be arranged in various ways, for example, a plurality of first expansion bodies 520 may be arranged in an array in the wristband body 100, as shown in fig. 17, the plurality of first expansion bodies 520 are arranged in two rows, and the plurality of first expansion bodies 520 in each row are arranged at intervals along the length direction of the wristband body 400, and for the wristband body 400 provided with the wristband hole, the two rows of first expansion bodies 520 may be located at both sides of the wristband hole. Alternatively still, the first expansion body 520 may be arranged in an irregular manner on the band body 100.

In addition, a plurality of first expansion bodies 520 are disposed between the top layer 430 and the bottom layer 440, and the plurality of first expansion bodies 520 may be disposed in various manners, and fig. 18 is a schematic cross-sectional view at D-D in fig. 17; referring to fig. 18, the edges of the top layer 430 and the bottom layer 440 may be connected together to form a cavity between the top layer 430 and the bottom layer 440, and the plurality of first expansion bodies 520 of the water-absorbing swelling portion 500 may be fixed in the cavity, at this time, the bottom layer 440 may be an elastic layer made of a material having a certain elastic deformation capability such as leather or silica gel, and the thickness of the elastic layer may be changed, so that the bottom layer 440 may protrude inward to tighten the wrist after the water-absorbing swelling portion 500 swells.

Alternatively, FIG. 19 is another cross-sectional schematic view at D-D in FIG. 17. Referring to fig. 19, a partition wall 460 is provided between the top layer 430 and the bottom layer 440, so that a plurality of accommodating chambers arranged in an array are enclosed between the top layer 430 and the bottom layer 440, each accommodating chamber accommodating one first expansion body 520. At this time, the partition wall 460 may constitute an elastic sidewall capable of allowing the plurality of first expansion bodies 520 between the top layer 430 and the bottom layer 440 to be water-swelling or dehydrated to be retracted to an initial state. This way, the expansion of the first expansion body 520 in the direction parallel to the band body 400 can be reduced, so that the first expansion body 520 can be rapidly expanded in the thickness perpendicular to the band body 400, so that the band can be rapidly strapped around the wrist.

Alternatively still, FIG. 20 is a schematic cross-sectional view of FIG. 17 at D-D; referring to fig. 20, there is a gap between the edge of the top layer 430 and the edge of the bottom layer 440, which allows the plurality of first swelling bodies 520 between the top layer 430 and the bottom layer 440 to be swelled or dehydrated to be retracted to an initial state. I.e., there may be no direct connection between the top layer 430 and the bottom layer 440, and a plurality of first expansion bodies 520 may be connected between the top layer 430 and the bottom layer 440.

The above-mentioned various ways can realize the water-absorbing expansion of the plurality of first expansion bodies 520, so that the thickness of the watchband can be changed along with the water absorption or dehydration of the first expansion bodies 520. The selection can be made according to the actual situation.

In this embodiment, in order to enable the water-absorbent swelling portion 500 to absorb sweat, at least one communication portion 441 for exposing each of the first swelling bodies 520 is provided on the bottom layer 440. The structure of the communication portion 441 is the same as that of the above-described embodiments, and specifically, reference may be made to the structural form in the above-described embodiments (for example, fig. 15 and 16).

The communication portion 441 may have through holes or through grooves distributed at each position of the water-swelling portion 500, so as to increase the contact area between the water-swelling portion 500 and sweat, thereby improving the water-absorbing effect thereof. In this embodiment, when the wearer wears intelligent wrist-watch motion, sweat is deposited easily between wrist and the intelligent hand limit, bottom 440 can be with wrist contact, after the wrist sweats, and the sweat is absorbed through intercommunication portion 441 to first inflation body 520 expands, and the volume of first inflation body 520 increases for the internal surface of bottom 440 is protruding to the direction that is close to skin, and the watchband can tighten the wrist, prevents that intelligent wrist-watch from rocking or sliding on the wrist, has improved the accuracy of health monitoring function. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the first expansion bodies 520 are arranged at intervals, after the first expansion bodies absorb water and expand, a concave-convex or wave-shaped structure can be formed on the inner surface of the bottom layer 440, namely, a concave ventilation groove can be formed between two adjacent first expansion bodies 520, the ventilation purpose can be achieved, and the comfort of a wearer is improved. In addition, since the bottom layer 440 has a whole structure, it can cover the water swelling portion 500, improving the comfort and aesthetic properties of the wristband.

Optionally, the distance between two adjacent first expansion bodies 520 is 3mm to 10mm, which can provide enough space for the expansion of the first expansion bodies 520, and can form ventilation grooves between the skin and the watchband, thereby achieving ventilation effect and improving wearing comfort.

Optionally, the plane parallel to the watchband body 400 is taken as a cross section, the cross section area of each first expansion body 520 is not less than 5 square millimeters, the water absorption expansion capacity of the first expansion bodies 520 is improved, the problem that skin pain is easily caused due to the fact that the area of the first expansion bodies 520 after the water absorption expansion is too small is avoided, and the wearing comfort is improved.

Alternatively, the area of the orthographic projection of all the first swelling bodies 520 on the top layer 430 is 30% to 60% of the area of the band body 400, so that the water-absorbing swelling portion 500 can grip the wrist after water-absorbing swelling and enhance the air permeability of the band.

Optionally, with the dimension perpendicular to the band body 400 as the thickness, the thickness of the band increases by 1.5mm or less after the first expansion body 520 absorbs water and expands, and in some embodiments, limited by the direct connection between the top layer 430 and the bottom layer 440, the thickness difference of the first expansion body 520 may vary slightly more than or equal to 1.5mm, which is a value that makes the circumference of the ring enclosed by the inner surface of the band not much smaller after the expansion portion 500 absorbs water and expands, thereby improving wearing comfort.

The band provided in this embodiment, by providing the band body 400 and the water swelling part 500, the band body 400 includes the top layer 430 and the bottom layer 440 stacked in a direction perpendicular to the band body 400; the surface of bottom layer 440 facing away from top layer 430 forms the inner surface of wristband body 400; the water-swelling portion 500 is disposed between the top layer 430 and the bottom layer 440, and when the wearer's wrist sweats, the water-swelling portion 500 includes a plurality of first swelling bodies 520 arrayed in the band body 400. The bottom layer 440 is provided with a communication portion 441 for exposing the water swelling portion 500. The water-swellable component 500 is capable of swelling upon absorption of water, thereby causing the backsheet 440 to protrude in a direction toward the wearer's skin. The wrist can be banded to the watchband, prevents that intelligent wrist-watch from rocking or sliding on the wrist, has improved the accuracy of health monitoring function. Meanwhile, the watchband of the embodiment can absorb sweat, so that wearing comfort is improved. Meanwhile, since the first expansion bodies 520 are arranged at intervals, after the first expansion bodies absorb water and expand, a concave-convex or wave-shaped structure can be formed on the inner surface of the bottom layer 440, namely, a concave ventilation groove can be formed between two adjacent first expansion bodies 520, the ventilation purpose can be achieved, and the comfort of a wearer is improved. In addition, since the bottom layer 440 has a whole structure, it can cover the water swelling portion 500, improving the comfort and aesthetic properties of the wristband.

It will be appreciated that the structures illustrated by the various embodiments of the present application do not constitute a particular limitation on the wearable device. In other embodiments of the application, the wearable device may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The implementation of the above embodiments can be used in common, and for example, in the first embodiment, the fastening means such as the engagement connection and adhesion between the band body 400 and the water swelling portion 500 can be applied to the second, third and fourth embodiments. For another example, the structure of the communication portion 441 in the third embodiment may also be applied to the fourth embodiment, which is not limited in the embodiment of the present application.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A wristband, comprising:

a watchband body; the watchband body comprises a top layer and a bottom layer which are stacked along the direction perpendicular to the watchband body; the surface of the bottom layer facing away from the top layer forms the inner surface of the watchband body; the water-absorbing expansion part is arranged between the top layer and the bottom layer, and a communication part for exposing the water-absorbing expansion part is arranged on the bottom layer; the water absorption expansion part can absorb water and expand, and after absorbing water, the thickness of the water absorption expansion part along the direction vertical to the watchband body is increased, so that the watchband can tighten the wrist; a gap is provided between the edge of the top layer and the edge of the bottom layer, the gap allowing the water-swelling portion between the top layer and the bottom layer to expand hydroscopically or retract from dehydration; alternatively, the top layer edge and the bottom layer edge are connected by an elastic sidewall that allows the water-swellable section between the top layer and the bottom layer to expand hydroscopically or retract from dehydration;

the communication part comprises a plurality of through holes which are formed on the inner surface of the watchband body and penetrate through the bottom layer; or alternatively, the process may be performed,

the communication part comprises at least one through groove which is arranged on the inner surface of the watchband body, and the through groove penetrates through the bottom layer and extends to the water-absorbing expansion part.

2. The wristband according to claim 1, wherein the water-absorbing swelling portion is a layered structure extending from one end of the top layer to the other end of the top layer in a length direction of the wristband body.

3. The wristband according to claim 1, wherein the water-absorbing swelling portion includes a plurality of first swelling bodies arrayed within the wristband body.

4. A wristband according to claim 3, wherein the distance between two adjacent first expansion bodies is 3mm to 10mm.

5. The wristband of claim 3 or 4, wherein each of the first expansion bodies has a cross-sectional area of not less than 5 square millimeters, with a plane parallel to the wristband body being a cross-section.

6. The watchband according to claim 3 or 4, wherein a partition wall is arranged between the top layer and the bottom layer, and the partition wall divides the top layer and the bottom layer into a plurality of accommodating cavities which are arranged in an array in a surrounding manner;

each of the accommodation chambers accommodates one of the first expansion bodies.

7. The wristband according to claim 1, wherein,

the through holes are arranged in an array on the inner surface of the watchband body; the array comprises M rows arranged along the length direction of the watchband body and N columns arranged along the width direction of the watchband body; wherein M is a natural number of 1 or more, and N is a natural number of 1 or more.

8. The wristband according to claim 1, wherein,

at least one through groove extends along the length direction of the watchband body; or, at least one through slot extends along the width direction of the watchband body.

9. The wristband according to any one of claims 1-4, 7, 8, wherein the edges of the top layer and the bottom layer are joined and the top layer and bottom layer are elastic layers of variable thickness.

10. The wristband according to any of claims 1-4, 7, 8, wherein the area of the orthographic projection of the water-absorbing expansion on the wristband body is between 30% and 60% of the area of the wristband body.

11. The band according to any one of claims 1 to 4, 7, and 8, wherein a thickness variation of the band after the water-swelling portion swells by absorbing water is 1.5mm or less.

12. The wristband according to any one of claims 1-4, 7, 8, wherein the water-absorbing swelling is snap-fastened to the wristband body;

or the water-absorbing expansion part is adhered to the watchband body;

or the water-absorbing expansion part is fixed on the watchband body through a chemical molding process.

13. A wearable device comprising a device body and the wristband of any one of claims 1-12 mounted on the device body.