CN107157464B

CN107157464B - Face shell, wearable device and face shell manufacturing method

Info

Publication number: CN107157464B
Application number: CN201710445346.6A
Authority: CN
Inventors: 邓强
Original assignee: Midea Group Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2017-06-14
Filing date: 2017-06-14
Publication date: 2021-02-26
Anticipated expiration: 2037-06-14
Also published as: CN107157464A

Abstract

The invention discloses a face case, a wearable device and a manufacturing method of the face case. The face case comprises a face case body, and the face case body is formed with a display area and a non-display area surrounding the display area. The degree of light is 10% to 70%, the inner surface of the non-display area is covered with a shielding layer, the transmittance of the non-display area covered with the shielding layer is not more than 15%, and the transmittance of the display area is greater than that of the non-display area. , and the transmittance of the display area is at most 70% higher than that of the non-display area. When the face case is used as an outer cover and the display screen is installed on the inner side of the display area of the face case, since the above-mentioned parameters of transmittance between the display area and the non-display area have a certain contrast, it can solve some electronic problems in the prior art. There is a problem that there is a relatively obvious boundary between the display area and the non-display area of the display screen of the device, so that there is no obvious boundary between the display area and the non-display area of the entire face shell. the grade of the product.

Description

Face shell, wearable device and face shell manufacturing method

Technical Field

The invention relates to the field of medical health-care equipment, in particular to a face shell, wearing equipment and a manufacturing method of the face shell.

Background

With the improvement of the quality of life, the health care consciousness of modern people is more and more intense, and the household medical care becomes the modern medical care fashion. In the past, people must go to a hospital to measure the blood pressure, and at present, the blood pressure can be monitored at any time by sitting at home only by having a household electronic sphygmomanometer, so that the operation and the use of a user are facilitated, and therefore elements such as portability, fashion, attractiveness, simplicity and convenience in operation and the like become the development trend of the household sphygmomanometer.

Disclosure of Invention

The invention aims to provide a face shell, wearing equipment and a manufacturing method of the face shell.

In order to achieve the above object, the present invention provides a panel including a panel body, the panel body being formed with a display area and a non-display area surrounding the display area, an inner surface of the non-display area being covered with a shielding layer, a transmittance of the panel body being 10% to 70%, the transmittance of the non-display area covered with the shielding layer being not more than 15%, the transmittance of the display area being greater than the transmittance of the non-display area, and the transmittance of the display area being at most 70% higher than the transmittance of the non-display area.

Preferably, the panel body is made of a molded or cut material with the light transmittance of 15% -40%.

Preferably, the panel shell body is made of transparent plastic or glass.

Preferably, the transmittance of the non-display area covered with the shielding layer is 0.5% to 10%.

Preferably, the transmittance of the display region is at most 5% to 40% higher than the transmittance of the non-display region.

In addition, the invention also provides wearing equipment which comprises the OLED screen and the face shell, wherein the OLED screen is arranged on the inner side of the display area of the face shell body, the effective display area of the OLED screen is matched with the display area, and the contrast ratio of the transmittance of the display area after the OLED screen is laminated to the transmittance of the non-display area is 95% -105%.

Preferably, the wearable device is a wrist-worn sphygmomanometer.

Preferably, the OLED screen is provided with a polarizing plate.

In addition, the invention also provides a manufacturing method of the face shell, wherein the face shell is the face shell, and the method comprises the following steps:

the method comprises the following steps: processing the surface shell body;

step two: the display area and the non-display area are partitioned on the panel body, and the shielding layer is formed on the non-display area of the inner surface of the panel body.

Preferably, in the first step, when the inner surface of the face shell body is a plane, the face shell body is formed by cutting a material; when the inner surface of the face shell body is non-planar, the face shell body is formed by a molding mode.

Preferably, in the second step, when the face shell body includes the face shell frame, the shielding layer is formed by spraying on the inner surface of the face shell body in an oil spraying manner.

Preferably, in the second step, when the inner surface of the face shell body is a plane, the shielding layer is formed by spraying on the inner surface in a screen printing or oil spraying manner, and when the inner surface of the face shell body is a non-plane, the shielding layer is formed by spraying on the inner surface in a pad printing or oil spraying manner.

Preferably, before the shielding layer is formed in an oil spraying manner, a closed annular printing transition area is formed on the inner surface of the face shell body by adopting a silk-screen or pad printing process, a frame display area in the printing transition area is the display area, and the printing transition area is located in the non-display area.

Preferably, the transmittance of the display area is greater than the transmittance of the printing transition area, and the transmittance of the display area is at most 50% higher than the transmittance of the printing transition area.

Preferably, after the printing transition area is formed, firstly, paper blocking is attached to the inner surface of the face shell body, the paper blocking covers the display area, an outer frame of the paper blocking is located in the printing transition area, and then the shielding layer is formed on the inner surface of the face shell body to which the paper blocking is attached through spraying in the oil spraying mode.

Preferably, the method comprises:

step three: and carrying out UV treatment on the outer surface of the face shell body.

Through the technical scheme, the panel with certain contrast parameters, which is arranged according to the light transmittance of the display area and the non-display area, is mainly used for being matched with display screens (such as OLED screens) of some electronic equipment. When the face shell is used as an outer shell cover and the display screen is arranged on the inner side of the display area of the face shell, the parameter of the transmittance of the display area and the parameter of the transmittance of the non-display area have certain contrast, so that the problem that a relatively obvious boundary is easily formed between the display area and the non-display area of the display screen of the electronic equipment in the prior art can be solved, the whole face shell looks uniform in color, no obvious boundary exists between the display area and the non-display area, the appearance of the electronic equipment looks higher, and the integral grade of a product is improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a face shell according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a front cover according to a preferred embodiment of the present invention, which illustrates a pre-printing step performed in a manufacturing process of the front cover to obtain a boundary printing transition area between a display area and a non-display area;

FIG. 3 is a schematic structural diagram of a front cover according to a preferred embodiment of the present invention, which shows the effect of performing step three in the manufacturing process of the front cover, namely, forming a shielding layer on the non-display area of the inner surface of the front cover body;

FIG. 4 is a cross-sectional view of section A-A of FIG. 1, illustrating a face shell that is a face shell having a face shell border;

FIG. 5 is a schematic structural view of a sphygmomanometer in accordance with a preferred embodiment of the present invention;

FIG. 6 is an exploded view of FIG. 5, with the sphygmomanometer exploded as two parts, a housing assembly (including components within its internal component housing volume) and a cuff assembly;

FIG. 7 is a schematic structural view of the housing assembly (front and bottom) showing the cut-outs in the front and/or bottom;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 7, primarily illustrating the configuration of the cutouts in the face and/or bottom shell;

FIGS. 10-14 are cross-sectional views of section C-C of FIG. 9;

FIG. 15 is a schematic view of the construction of the cuff assembly;

FIG. 16 is a sectional view in the thickness direction of the sphygmomanometer according to the preferred embodiment of the present invention, the sectional direction also passing through the axial direction of the outlet tube and the tee;

FIG. 17 is a cross-sectional view of a tee;

fig. 18 is a partial sectional view in the thickness direction of the sphygmomanometer in accordance with the preferred embodiment of the present invention, which shows that the sphygmomanometer comprises a cylindrical rechargeable battery, and the bottom wall of the bottom case forms a lower convex arc wall to form an arc cylinder groove adapted to mount the cylindrical rechargeable battery, thereby making full use of the space.

Description of the reference numerals

1 face shell and 2 bottom shell

3 circuit board 4 display screen

5-notch 6 air pump

7-valve 8 three-way pipe

9 control key 10 oversleeve subassembly

11 display area 12 non-display area

13 cylindrical rechargeable battery 14 spigot annular flange

15 air outlet pipe 16 sealing cushion cover

17 face shell frame 18 buckle structure

151 support flange 161 side flange

101 oversleeve 102 lining board

103 air bag

121 printing transition area 122 printing oil spray overlapping area

61 air pump connecting pipe 71 air valve connecting pipe

81 lower through pipe 82 first side through pipe

83 second side through pipe

21 spigot annular groove 22 lower convex arc wall

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.

With the widespread use of electronic devices in modern life, liquid crystal displays are generally equipped, especially for wearable electronic devices, and the requirements of modern people on appearance are higher and higher. Because the face-piece of wearing equipment among the prior art, comparatively obvious demarcation has been formed easily between the display area and the non-display area of its display screen, has influenced product appearance for the product looks cheaper, high-grade inadequately.

In order to solve the problems in the prior art, the present invention provides a novel face shell, as shown in fig. 1, which includes a face shell body, the face shell body is formed with a display area 11 and a non-display area 12 surrounding the display area 11, the transmittance of the face shell body is 10% to 70%, the inner surface of the non-display area 12 is covered with a shielding layer, the transmittance of the non-display area 12 covered with the shielding layer is not more than 15%, the transmittance of the display area 11 is greater than the transmittance of the non-display area 12, and the transmittance of the display area 11 is at most 70% higher than the transmittance of the non-display area 12.

The panel 1 with certain contrast parameters, set by the light transmittances of the display area 11 and the non-display area 12, is mainly used for matching with display screens (such as OLED screens hereinafter) of some electronic devices. When the panel 1 is used as a housing cover and the display screen is installed inside the display area 11 of the panel 1, the parameter of the transmittance of the display area 11 and the parameter of the transmittance of the non-display area 12 have a certain contrast, so that the problem that a relatively obvious boundary is easily formed between the display area and the non-display area of the display screen of the electronic device in the prior art can be solved, the whole panel 1 looks uniform in color, no obvious boundary exists between the display area 11 and the non-display area 12, the appearance of the electronic device looks higher, and the overall grade of the product is improved.

Further, in order to further improve the borderless effect between the display area 11 and the non-display area 12, the preferred range of the panel body is a molded or cut material with 15% -40% of light transmittance.

The material of the face shell body can be selected according to actual conditions, and the face shell body can be made of transparent plastics or glass.

In the panel body, in order to make the transmittance of the non-display region 12 lower than that of the display region 11, a shielding layer is added to the non-display region 12, as will be further described below, and ink is sprayed on the shielding layer, and the transmittance of the non-display region 12 covered with the shielding layer is preferably 0.5% to 10%.

Further, the transmittance of the display region 11 is at most 5% to 40% higher than that of the non-display region 12.

The invention also provides wearing equipment which comprises the OLED screen and the face shell 1, wherein the OLED screen is arranged on the inner side of the display area 11 of the face shell body, the effective display area of the OLED screen is matched with the display area 11, and the contrast ratio of the transmittance of the display area 11 after the OLED screen is laminated to the transmittance of the non-display area 12 is 95% -105%, so that the contrast ratio of the display area 11 to the non-display area 12 of the face shell 1 is small, and no obvious boundary is generated. Thus, the wearing device of the present invention is equipped with the above-mentioned face housing 1 with frameless effect, and the wearing device described herein is an electronic device generally used with users, so that compared with the similar products, the wearing device of the present invention has the outstanding advantages of beautiful appearance and high grade.

The conventional OLED screen is mainly divided into a common transparent OLED screen, an OLED screen provided with a polarized light sheet with a blue-emitting surface and an OLED screen provided with a polarized light sheet.

The invention also provides a manufacturing method of the face shell, the face shell is the face shell 1, and the manufacturing method comprises the following steps:

the method comprises the following steps: firstly, injection molding is carried out to form a face shell body, and the face shell body at the moment is a blank structure of a face shell 1;

step two: the display area 11 and the non-display area 12 are divided on the panel body of the panel case 1 of the blank, and finally, a shielding layer is formed on the non-display area 12 on the inner surface of the panel body, that is, the operations such as printing the shielding layer or spraying ink are performed on the non-display area 12.

Specifically, in the first step, when the inner surface of the face shell body is a plane, the face shell body is formed by cutting a material; when the inner surface of the face shell body is non-planar, the face shell body is formed by a molding mode.

In the second step, as shown in fig. 4, when the face shell body includes the face shell frame 17, a shielding layer is formed on the inner surface of the face shell body by spraying oil.

In the second step, when the inner surface of the face shell body is a plane, a shielding layer is formed by spraying on the inner surface in a screen printing or oil spraying mode, and when the inner surface of the face shell body is a non-plane, the shielding layer is formed by spraying on the inner surface in a pad printing or oil spraying mode. The silk-screen or pad printing process is one of the printing process technologies known to those skilled in the art, and generally, the silk-screen process can be adopted when the face shell 1 is a flat surface; a pad printing process may be used when the face-piece 1 is a non-flat surface.

After the blank of the face shell 1 is formed by machining, since the boundary of the display area 11 and the non-display area 12 on the face shell body is difficult to be neat after ink is sprayed, spraying burrs are easy to generate or an adjacent oil spraying oil layer can be lifted to form uneven saw-tooth edges when paper blocking is subsequently uncovered. Therefore, before the shielding layer is formed by adopting the oil spraying mode, a printing transition area 121 in a closed ring shape is formed on the inner surface of the face shell body by adopting a silk-screen printing or pad printing process. As shown in fig. 2, the frame display area in the print transition area 121 is the display area 11, the print transition area 121 is located in the non-display area 12, and the pre-printed print transition area 121 makes the boundary between the display area 11 and the non-display area 12 flush. Because the printing transition area 121 is arranged in the non-display area 12, and the inner frame of the printing transition area is just the boundary frame of the display area 11 and the non-display area 12, the problem of uneven boundary can be well avoided when the non-display area 12 is sprayed with an oil layer subsequently.

As shown in fig. 3, since the printing oil spray overlapping region 122 is formed on the printing transition region 121 of the non-display region 12, in order to maintain the transmittance of the non-display region 12 to be well uniform, the transmittance of the display region 11 is greater than that of the printing transition region 121, and preferably, the transmittance of the display region 11 is at most 50% higher than that of the printing transition region 121.

Generally, after the printing transition area 121 is printed in advance, after the printing transition area 121 is formed, before the ink spraying process is performed, a paper barrier is attached to the inner surface of the face shell body, the paper barrier covers the display area 11, an outer frame of the paper barrier is located in the printing transition area 121, and then a shielding layer is formed on the inner surface of the face shell body to which the paper barrier is attached, so that the ink is not sprayed to the display area 11, and therefore, after the shielding layer is formed, before the face shell 1 is assembled as a part, the paper barrier needs to be removed, so that the display screen is not shielded.

In addition, in order to make the face shell 1 look more textured and enhance the surface hardness of the face shell 1 to prevent scratching, the method may further include the third step of: and carrying out UV treatment on the outer surface of the face shell body, namely spraying a layer of transparent protective oil on the outer surface of the face shell 1, and curing after ultraviolet irradiation.

The wearable device of the present invention mainly refers to a general portable electronic device, such as a wrist-worn blood pressure meter for daily use. In the prior art, the appearance of the sphygmomanometer is large, and the sphygmomanometer is not suitable for being carried by people to monitor blood pressure at any time. Therefore, the invention provides a miniaturized sphygmomanometer, as shown in fig. 5 and 6, the miniaturized sphygmomanometer comprises a face shell 1, a bottom shell 2, a circuit board 3 and a display screen 4, wherein the circuit board 3 and the display screen 4 are arranged in a component accommodating cavity between the face shell 1 and the bottom shell 2 which are buckled with each other, and the face shell 1 and the bottom shell 2 form a shell component of the sphygmomanometer. Display screen 4 is fixed on the top surface of circuit board 3 and towards display area 1 of face-piece 1, is the full position connection of detaining between face-piece 1 and the drain pan 2, and display screen 4 is not more than 1.5 mm's OLED screen for thickness.

The face shell 1 and the bottom shell 2 are connected in a full-buckling position, so that the space occupied by mounting screws and the like is saved; meanwhile, due to the adoption of the thin OLED screen, compared with the adoption of an LCD screen and the like in the prior art, the thin OLED screen is higher in service performance, is thinner by about 0.5-2 mm, and is favorable for the miniaturization design requirement of the sphygmomanometer.

In the above-described full-snap-position-connected face case 1 and bottom case 2, specifically, as shown in fig. 7 and 8, a plurality of snap structures 18 arranged at intervals in the circumferential direction are formed between the bottom peripheral edge of the face case 1 and the top peripheral edge of the bottom case 2, the snap structures 18 are snapped into each other in the thickness direction of the sphygmomanometer, and the snap groove in the snap structures 18 are laterally separated from each other to be snapped off. It should be noted that, as shown in fig. 7 and 8, the housing assembly of the present invention has a flat rectangular parallelepiped shape, the axial or height direction is the thickness direction, and the transverse or radial direction is the width or length direction, so that the housing assembly includes a laterally locked or unlocked snap structure 18. Compared with the mounting structure of the shell component in the prior art in a connection mode of screws and the like, the full-buckle type shell component saves the mounting space of the screws, and meanwhile, the buckle type connection structure of the face shell 1 and the bottom shell 2 enables the dismounting operation to be more convenient and faster and is convenient to maintain.

In order to ensure that the shell assembly has certain sealing performance so as to prevent water or dust and the like from entering and polluting components in the machine body, a spigot annular groove 21 is formed on the inner side of the top periphery of the bottom shell 2, a spigot annular flange 14 downwardly extends from the inner side of the bottom periphery of the face shell 1, and the spigot annular flange 14 extends into the spigot annular groove 21 between the face shell 1 and the bottom shell 2 so as to form spigot sealing connection.

Meanwhile, in order to facilitate the opening of the housing component of the sphygmomanometer and to quickly find the opening, as shown in fig. 7 to 14, the peripheral wall of the face shell 1 and/or the bottom shell 2 is provided with a notch 5 which can be cut into to trip the buckle structure 18. The notch 5 is convenient for fingers to extend in, the surface shell 1 and the bottom shell 2 are conveniently separated by force outwards transversely at the notch 5, and meanwhile, the buckle structure 18 is convenient to break outwards to loosen the buckle.

For the aesthetic appearance of the housing assembly of the sphygmomanometer, it is preferable that a seamless snap fit is adopted at the external connection of the face housing 1 and the bottom housing 2, and a seamless fit is formed between the top surface of the outer side portion of the top peripheral edge of the bottom housing 2 and the bottom surface of the outer side portion of the bottom peripheral edge of the face housing 1.

As shown in fig. 10 to 14, the selection of the position, shape and size of the cut 5 may be various.

Wherein the cut-outs 5 are formed at the outer side of the top peripheral edge of the bottom shell 2 and/or at the outer side of the bottom peripheral edge of the face shell 1, i.e. outside the housing assembly;

the cross-sectional shape of the cut 5 may preferably be square, triangular or Y-shaped;

the width of the slit 5 is not less than 1mm because the slit is too small to facilitate insertion of a fingernail of a user.

Generally, the face case 1 and the bottom case 1 are in a rectangular shape, that is, the housing assembly is in a square box shape, and four sides of the bottom circumference of the face case 1 and the top circumference of the bottom case 2 are respectively provided with the snap structures 18, so that the number of the snap structures 18 is at least 4 to ensure the structural stability of the housing assembly.

Of course, the design of the shell component of the sphygmomanometer and the internal parts of the shell component need to consider the miniaturization mechanism of the whole sphygmomanometer and also ensure the use performance of the whole sphygmomanometer. For example, in order to ensure the standby service time of the sphygmomanometer, the sphygmomanometer comprises a cylindrical rechargeable battery 13, and compared with a common lithium battery with small capacity and small size, the cylindrical rechargeable battery 13 has a relatively large volume. As shown in fig. 18, in the sphygmomanometer of the present invention, in consideration of the requirement for miniaturization, the bottom wall of the bottom case 2 is formed with a circular arc column groove for fitting the cylindrical rechargeable battery 13, and the bottom wall of the circular arc column groove is formed with a downwardly convex circular arc wall 22.

The cylindrical rechargeable battery 13 and the downwardly convex circular arc wall 22 are partially protruded from the housing assembly (bottom case 2) to create a sufficient space for accommodating the cylindrical rechargeable battery 13, wherein the protruded portion is offset from the position of the lining plate 102 in the cuff assembly 10, and the cuff assembly 10 and its components will be further described below. The downward convex arc wall 22 does not enlarge the whole sphygmomanometer, effectively utilizes space and meets the requirement of miniaturization of the sphygmomanometer.

Specifically, the component accommodating chamber is a rectangular chamber and includes a circuit board mounting chamber and a battery mounting chamber which are arranged along the length direction of the rectangular chamber, the circuit board 3 is arranged in the circuit board mounting chamber, the cylindrical rechargeable battery 13 is arranged in the battery mounting chamber, in the circuit board mounting chamber, the bottom wall of the bottom case 2 is a horizontal bottom wall, and at the battery mounting chamber, the bottom wall of the bottom case 2 is formed as a downward convex lower convex arc wall 22 which is convex downward relative to the horizontal bottom wall.

As shown in fig. 5, 6, 15 and 16, the sphygmomanometer comprises the housing assembly and the internal components thereof, and further comprises a sleeve assembly 10, wherein the sleeve assembly 10 comprises a sleeve 101 and a lining plate 102, the lining plate 102 is arranged in the sleeve 101 and connected to the bottom of the bottom shell 2, and the lower convex arc wall 22 does not exceed the bottom surface of the lining plate 102, as shown in fig. 18, the internal space of the component container is fully utilized.

As shown in fig. 6, the front case 1 is provided with a single control key 9. The one-key arrangement not only can make the sphygmomanometer operate more simply and efficiently, but also can further reduce the volume of the whole sphygmomanometer by replacing the form of a plurality of keys with the design of a single key.

Preferably, the face shell 1 and the bottom shell 2 are made of molded or cut materials, so that materials can be conveniently obtained, and the cost is low.

In addition, as shown in fig. 16 and 17, the sphygmomanometer of the present invention includes an air pump 6, an air valve 7 and a three-way pipe 8, which are located in the component accommodating cavity and are disposed below the circuit board 3, the air pump 6 extends out of an air pump connecting pipe 61, the air valve 7 extends out of an air valve connecting pipe 71, the three-way pipe 8 includes a downward through pipe 81 extending downward and a first side through pipe 82 and a second side through pipe 83 located at two sides of the downward through pipe 81, the bottom case 2 is formed with a vertical air outlet pipe 15, a bottom end of the air outlet pipe 15 penetrates downward through the bottom case 2, a top end of the air outlet pipe 15 is sleeved with the downward through pipe 81, and the first side through pipe 82 and the second side through pipe 83 respectively extend downward from a top side. By utilizing the design of the special pipeline connecting structure of the three-way pipe 8, the connecting structure of the three-way pipe 8 and the air bag air pipe (the air outlet pipe 15) and the connecting air valve 7 and the air pump 6 are utilized, so that the connecting distance of each pipeline is shortest, the space is effectively saved, and the miniaturization structure of the sphygmomanometer is further realized.

Since the cuff assembly 10 comprises the cuff 101, the lining plate 102 and the air bag 103, the lining plate 102 is arranged in the cuff 101 and fixedly connected to the bottom shell 2 right below, and the air bag 103 is arranged right below the lining plate 102 and connected to the air outlet pipe 15. Therefore, the cuff assembly 10 and the housing assembly (including the components of the inner cavity thereof) are separable but can be fixedly connected to form two major components of the whole blood pressure monitor.

Further, the included angle between the first side through pipe 82 and the second side through pipe 83 is not more than 150 degrees, so that the relative distance between the air pump 6 and the air valve 7 is smaller and closer, the whole structure is more compact, and the width of the whole machine is smaller.

Meanwhile, the top heights of the air pump 6 and the air valve 7 are lower than the top height of the three-way pipe 8. Namely, the top end of the three-way pipe 8 is highest, and the thickness of the whole machine is reduced.

The component accommodating cavity is internally provided with a circuit board 3 and a display screen 4 which is displayed towards a display area 1 of the face shell 1, the display screen 4 is arranged above the circuit board 3, and the top end of the three-way pipe 8 is positioned below the circuit board 3, so that the internal structure is compact.

The air pump connecting pipe 61 and the air valve connecting pipe 71 are hoses with sleeved joints at two ends, and the first side through pipe 82, the second side through pipe 83 and the lower through pipe 81 are hard pipes and are hoses with sleeved joints, so that the air pump connecting pipe and the air valve connecting pipe are convenient to insert.

Particularly, the air outlet pipe 15 is fixedly arranged on the bottom shell 2, the top end of the air outlet pipe 15 is sleeved in the lower through pipe 81, a sealing cushion 16 is further arranged between the outer peripheral wall of the top end of the air outlet pipe 15 and the inner peripheral wall of the lower through pipe 81, and the three-way pipe 8 and the air outlet pipe 15 are connected more tightly and stably through the structure of the sealing cushion 16.

In addition, the outer peripheral wall of the outlet pipe 15 is formed with a support flange 151, the bottom end periphery of the lower through pipe 81 is vertically spaced from the support flange 151, and the bottom end periphery of the seal packing 16 is formed with a lateral outward side flange 161, and the side flange 161 is arranged between the bottom end periphery of the lower through pipe 81 and the support flange 151. The side flanging 161 of the sealing cushion cover 16 ensures that the three-way pipe 8 and the air outlet pipe 15 cannot move due to extrusion during assembly, and the sealing reliability is ensured while the structure is stable.

Preferably, the support flange 151 is integrally formed with the bottom case 2.

Meanwhile, the air outlet pipe 15 is a hard pipe integrally formed on the bottom case 2. Therefore, the air outlet pipe 15, the supporting flange 151 and the bottom shell 2 are all of an integrally formed structure, and the air outlet pipe is simple to operate and low in production cost.

By combining the technical scheme, the optimization and structure optimization design is carried out on each part of the sphygmomanometer, and finally the whole structure (excluding the cuff component) of the sphygmomanometer can be made into a square structure (obtained actual finished products and measured data) with the overall dimension of length x width x height of about 64mm x 48mm x 17mm, so that the sphygmomanometer is very miniaturized in appearance.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A face shell comprising a face shell body formed with a display area (11) and a non-display area (12) surrounding the display area (11), the inner surface of the non-display area (12) being covered with a shielding layer, characterized in that the face shell body is a molded or cut material having a transmittance of 15% to 40%, the transmittance of the non-display area (12) covered with the shielding layer is not more than 15%, the transmittance of the display area (11) is greater than the transmittance of the non-display area (12), and the transmittance of the display area (11) is at most 70% higher than the transmittance of the non-display area (12).

2. The face shell of claim 1, wherein the face shell body is transparent plastic or glass.

3. The front cover according to claim 1, wherein the light transmittance of the non-display area (12) covered with the shielding layer is 0.5% to 10%.

4. The front cover according to claim 1, wherein the transmittance of the display area (11) is at most 5% to 40% higher than the transmittance of the non-display area (12).

5. A wearable device, comprising an OLED screen, characterized in that, the wearable device further comprises a face shell (1) according to any one of claims 1-4, the OLED screen is arranged on the inner side of the display area (11) of the face shell body, the effective display area of the OLED screen is matched with the display area (11), and the contrast ratio of the transmittance of the display area (11) after the OLED screen is stacked to the transmittance of the non-display area (12) is 95% -105%.

6. The wearable device according to claim 5, wherein the wearable device is a wrist worn sphygmomanometer.

7. Wearing device according to claim 5, wherein the OLED screen is provided with a polarizer.

8. A method for manufacturing a face shell, wherein the face shell is a face shell (1) according to any one of claims 1 to 4, the method comprising:

the method comprises the following steps: processing the surface shell body;

step two: the display area (11) and the non-display area (12) are divided on the panel body, and the shielding layer is formed on the non-display area (12) of the inner surface of the panel body.

9. The method for manufacturing a front cover according to claim 8, wherein in the first step, when the inner surface of the front cover body is a plane, the front cover body is formed by cutting a material; when the inner surface of the face shell body is non-planar, the face shell body is formed by a molding mode.

10. The method for manufacturing a panel shell according to claim 8, wherein in the second step, when the panel shell body comprises a panel shell frame (17), the shielding layer is formed on the inner surface of the panel shell body by spraying oil.

11. The method for manufacturing a panel shell according to claim 8, wherein in the second step, when the inner surface of the panel shell body is a plane, the shielding layer is formed by spraying on the inner surface through a screen printing or oil spraying manner, and when the inner surface of the panel shell body is a non-plane, the shielding layer is formed by spraying on the inner surface through a pad printing or oil spraying manner.

12. The method for manufacturing the face shell according to claim 10 or 11, wherein before the shielding layer is formed in an oil spraying manner, a printing transition area (121) in a closed ring shape is formed on the inner surface of the face shell body by adopting a silk-screen printing or pad printing process, a frame display area in the printing transition area (121) is the display area (11), and the printing transition area (121) is located in the non-display area (12).

13. The method of claim 12, wherein the transmittance of the display area (11) is greater than the transmittance of the printing transition area (121), and the transmittance of the display area (11) is at most 50% higher than the transmittance of the printing transition area (121).

14. The method for manufacturing a front cover according to claim 13, wherein after the printing transition area (121) is formed, a paper barrier is attached to an inner surface of the front cover body, the paper barrier covers the display area (11) and an outer frame of the paper barrier is located in the printing transition area (121), and then the shielding layer is formed on the inner surface of the front cover body to which the paper barrier is attached by spraying in the oil spraying manner.

15. The method of making a facepiece of claim 8, the method comprising: