CN107547703B - Elastic sleeve and mobile terminal - Google Patents

Abstract

The invention is suitable for the technical field of mobile terminals and discloses an elastic sleeve and a mobile terminal. The elastic sleeve is used for assembling the light sensation proximity sensor of the mobile terminal, the elastic sleeve is provided with a cavity for the light sensation proximity sensor to be sleeved, a first opening is arranged on the top wall of the cavity corresponding to the visible light sensing device and the proximity light sensing device, a second opening is arranged on the top wall of the cavity corresponding to the proximity light sensing device, the first opening and the second opening are separated by a retaining wall, a sealing rib used for being attached to the front panel of the mobile terminal is arranged at the upper end of the top wall of the cavity, the sealing rib is in a closed annular shape and surrounds the periphery of the first opening and the second opening, and the end face of the upper end of the top wall of the cavity and the top of the retaining wall are at the same horizontal plane height. According to the elastic sleeve and the mobile terminal provided by the invention, the elastic sleeve has small influence on the light sensation proximity sensor, the use effect of the light sensation proximity sensor is good, the reliability of the product is high, and the user experience effect is good.

Description

Elastic sleeve and mobile terminal

This application is divided according to the invention patent application with application number 201510292169.3

technical field

The invention belongs to the technical field of mobile terminals, and in particular relates to an elastic sleeve and a mobile terminal.

Background technique

At present, mobile terminals such as mobile phones are equipped with light-sensing proximity three-in-one devices (light-sensing proximity sensors). The silicone sleeve, the light-sensing proximity sensor is a three-in-one sensor that integrates the ambient light sensing device, the IR emitting LED and the proximity sensing device. The ambient light sensor (ALS) automatically adjusts the brightness of the LCD backlight by monitoring the intensity of the ambient light, or controls the lighting and closing of the button lights. Proximity sensor (PS) and IR (infrared) emitting LED are used to judge whether the mobile phone is close to the face by monitoring the infrared light emitted by the IR LED when using the receiver to talk, and the LCD backlight can be turned off when it is close to save power. , At the same time, for the capacitive touch screen, it can prevent misoperation; it can also use multiple proximity sensors for simple gesture recognition and other applications. In order to prevent misoperation caused by the face touching the touch screen when the capacitive touch screen smart phone is on a call, the infrared proximity sensor is used for sensing. The infrared proximity sensor device consists of an infrared (IR) LED light and an infrared photosensitive sensor device. The infrared emission LED emits infrared light. When an object approaches, a part of the infrared light is reflected by the obstacle to the infrared photosensitive device. The infrared photosensitive device The intensity value of infrared light is sensed. When the intensity value reaches a certain intensity (greater than the preset intensity value of the object approaching by the mobile phone), the mobile phone thinks that there is an object approaching at this time, and turns off the screen during the call, and the touch screen is forbidden to respond to external Action to avoid the misoperation caused by the contact between the face and the touch screen during the call. After the call, the user moves the mobile phone away from the ear part. The mobile phone detects that the reflected intensity of infrared rays is less than the distance threshold at this time, the mobile phone screen is turned on, and the touch screen resumes its function. The visible light sensor device tests the intensity of the ambient light where the mobile phone is located, and adjusts the backlight brightness value of the mobile phone display according to the intensity of the ambient light at this time, so as to achieve the effect of seeing the screen clearly and comfortably.

A light-sensing proximity sensor in the prior art, which encapsulates a proximity light generating device (IR LED) and a proximity light sensing device, wherein the IR LED (proximity light generating device) has a hole, and the infrared SENSOR (proximity light sensing device) A light-transmitting hole is opened together with the visible light SENSOR (visible light sensor device). The previous light-sensing proximity sensor has a large center hole distance, and the silicone sleeve design generally only considers dust-proof and waterproof design, while the infrared proximity sensor is used to detect the approach of external objects, so it needs to emit energy in a concentrated manner, and in order to prevent the infrared rays from being directly connected to the infrared rays At the SENSOR end, isolation needs to be added between the IR LED and the infrared SENSOR end. The ambient light SENSOR needs to measure the intensity of the external ambient light. In order to test more accurately, it needs to receive the ambient light to the maximum extent, and the larger the receiving angle, the better. The more obstructions, the worse the effect. With the miniaturization of the light-sensing proximity sensor, the center distance of the small hole device becomes smaller. The silicone sleeve in the prior art has a great influence on the light-sensing proximity sensor, and the use effect of the light-sensing proximity sensor is poor, which affects the reliability of the product. and user experience.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide an elastic sleeve and a mobile terminal, which have good use effect of the light-sensing proximity sensor, high reliability of the product, and good user experience, that is, it solves The technical problem of improving the sensitivity of detection between the proximity light generating device and the proximity photo sensing device when a shield is formed near the front panel to ensure that the capacitive touch screen is not blocked by the shield is a technical problem.

The technical solution of the present invention is: an elastic sleeve for assembling a light-sensing proximity sensor of a mobile terminal, wherein the light-sensing proximity sensor includes a proximity light generating device, an adjacent visible light sensing device and a proximity light sensing device, The elastic sleeve has a cavity for the light-sensing proximity sensor to be inserted into. The top wall of the cavity is provided with a first opening corresponding to the visible light sensing device and the proximity light sensing device, and the top wall of the cavity corresponds to the proximity light generating device. A second opening is provided, the first opening and the second opening are separated by a retaining wall, the upper end of the top wall of the chamber is provided with a sealing rib for adhering to the front panel of the mobile terminal, and the sealing rib is in the form of a closed ring and It is enclosed around the periphery of the first opening and the second opening, wherein the end face of the upper end of the top wall of the chamber and the top of the retaining wall are at the same level.

Optionally, the size of the chamber is smaller than the outer size of the optical proximity sensor.

Optionally, the center-to-center distance between the first opening and the second opening is less than 2 mm, the length of the optical proximity sensor is 3.9 to 4.0 mm, and the width is 2.3 to 2.4 mm; the length of the chamber is 3.6 to 3.85 mm, and the width is 2.1 mm to 2.25 mm.

Optionally, the elastic cover is made of dark plastic material.

Optionally, the elastic cover is made of black silicone.

Optionally, there is a gap between the optical proximity sensor and the front panel.

Optionally, the thickness of the retaining wall is smaller than the wall thickness of the elastic sleeve.

Optionally, one side of the elastic sleeve is integrally formed with a fool-proof convex portion or a fool-proof concave portion.

According to another aspect of the present technical solution, a mobile terminal is provided. The mobile terminal includes a light-sensing proximity sensor and an elastic cover, wherein the light-sensing proximity sensor includes a low-beam generating device, an adjacent visible light sensing device and a proximity light-sensing device, the elastic cover is used for assembling the light-sensing proximity sensor, and the mobile terminal is The aforementioned elastic sleeve.

In the elastic sleeve and the mobile terminal provided by the present invention, the elastic sleeve is provided with a first opening corresponding to the visible light sensor device and the proximity light sensor device, the elastic sleeve is provided with a second opening corresponding to the proximity of the light generating device, and the The first opening and the second opening are separated by a retaining wall, the elastic sleeve has little influence on the light-sensing proximity sensor, the use effect of the light-sensing proximity sensor is good, the reliability of the product is high, and the user experience effect is good, namely The technical problem of how to improve the sensitive detection degree between the proximity light generating device and the proximity light sensing device when the shielding object is close to the front panel to form a shield to ensure that the capacitive touch screen is not mis-operated by the shielding object is solved.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic perspective view of an elastic sleeve in a mobile terminal provided by an embodiment of the present invention;

2 is a schematic perspective view of an elastic sleeve in a mobile terminal provided by an embodiment of the present invention;

3 is a schematic plan view of an elastic sleeve in a mobile terminal provided by an embodiment of the present invention;

4 is a schematic plan view of an elastic sleeve in a mobile terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic plan view of an elastic sleeve in a mobile terminal according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should also be noted that the azimuth terms such as left, right, upper and lower in the embodiments of the present invention are only relative concepts to each other or refer to the normal use state of the product, and should not be regarded as limiting. .

As shown in FIGS. 1 to 5 , a mobile terminal provided by an embodiment of the present invention includes a mobile terminal body, and the mobile terminal body includes a casing, a screen connected to the casing, and a battery, a circuit board, and the like disposed in the casing. The mobile terminal may be a mobile phone or a tablet computer or the like. The mobile terminal body is provided with a light-sensing proximity sensor and an elastic sleeve 1. The elastic sleeve 1 has a cavity 10 for the light-sensing proximity sensor to be inserted into. The elastic sleeve 1 has a certain elasticity and has a buffering and protective effect. Well, the elastic sleeve 1 is set outside the light-sensing proximity sensor to protect the light-sensing proximity sensor and ensure that the light-sensing proximity sensor can work reliably. The light sensing proximity sensor includes adjacent visible light sensing devices, proximity light sensing devices, and proximity light generating devices. The visible light sensor device is the ambient light sensor device, which automatically adjusts the brightness of the screen backlight by monitoring the intensity of the ambient light, or controls the lighting and closing of the button lights; The proximity light sensor device monitors the infrared light emitted by the proximity light generating device to determine whether the mobile phone is close to the face. When it is close, the screen backlight can be turned off to save power. At the same time, for the capacitive touch screen, it can prevent misoperation; Multiple proximity light sensor devices for simple gesture recognition and other applications. The proximity light generating device may be an infrared LED light. The center-to-center distance of the proximity light sensing device and the proximity light generating device may be less than 2 mm, and the center-to-center distance of the proximity photo sensing device and the proximity light generating device may be 1.4 mm. The elastic sleeve 1 is provided with a first opening 101 corresponding to the visible light sensor device and the proximity photo sensor device, the elastic sleeve 1 is provided with a second opening 102 corresponding to the proximity of the light generating device, and the first opening 101 It is separated from the second opening 102 by the blocking wall 11, so that the elastic sleeve 1 has less influence on the light-sensing proximity sensor, the light-sensing proximity sensor has a good use effect, the reliability of the product is high, and the user experience effect is good. . The center-to-center distance between the first opening 101 and the second opening 102 may be less than 2 mm, for example, may be set to 1.4 mm. The first opening 101 and the second opening 102 may be in the shape of a circle or a rectangle.

Specifically, the size of the chamber 10 may be smaller than the external dimension of the light-sensing proximity sensor, and the elastic sleeve 1 may be tightly fitted to the light-sensing proximity sensor, with good protection performance.

In a specific application, the length of the photosensitive proximity sensor may be a suitable value such as 3.9 to 4.0 mm, and the width may be a suitable value such as 2.3 to 2.4 mm; the length of the chamber 10 may be a suitable value such as 3.6 to 3.85 mm, The width can be a suitable value such as 2.1 to 2.25 mm. In this embodiment, the length, width, and height of the photosensitive proximity sensor are 3.94, 2.36, and 1.35 mm, respectively. The length and width of the chamber 10 can be 3.8 and 2.2 mm, respectively, and the elastic sleeve 1 is not easy to fall off.

Specifically, the elastic sleeve 1 can be made of a dark plastic material, which is easy to absorb light and avoid interference of the light-sensing proximity sensor.

In this embodiment, the elastic sleeve 1 can be made of black silica gel, which has a good effect of absorbing light, a low internal diffraction value, and reliable product performance.

Specifically, the mobile terminal body has a front panel, the front panel can be glass, the upper end of the elastic sleeve 1 is provided with a sealing rib 12 attached to the front panel, and the sealing rib 12 is in a closed ring shape and encloses around the first opening 101 and the second opening 102 . When the sealing rib 12 is in contact with the front panel (glass), the interference is 0.05mm, and the dustproof and waterproof effect is good. The cross section of the sealing rib 12 can be in a suitable shape such as a triangle, a rectangle, a trapezoid or a semicircle.

Specifically, there is a gap between the light-sensing proximity sensor and the front panel. If no gap is reserved, considering factors such as assembly errors, the light-sensing proximity sensor may hit the front panel and crush the light-sensing proximity sensor. sensor or front panel. Since the center distance of the proximity light sensor device and the proximity light generation device is very small, when there is an external object completely blocked, the light emitted by the proximity light generation device (infrared lamp) will directly enter the close receiving end (proximity photo sensor device) through the gap. ), resulting in a large received light intensity value, that is, a large internal diffraction value. When the user's face is seriously oily, oil will stick to the front panel corresponding to the light sensor proximity sensor when making a phone call, and the oil will act as a shield, resulting in a large diffraction value and a very high light intensity value. Large, in this case, it will be automatically judged as a close state, and the phone will be in a state where the screen is turned off. That is to solve the oil pollution problem. Moreover, through simulation experiments, it is found that the infrared diffraction is the strongest in the middle of the two holes of the first opening 101 and the second opening 102. By setting the black blocking wall 11, it is easy to absorb infrared light; the width of the blocking wall 11 is appropriate and cannot block the transmission hole. and the receiving hole (that is, close to the light generating device and the light sensing device), and the height of the blocking wall 11 is appropriate, not flush with the dustproof and waterproof sealing rib 12 , and the blocking wall 11 is lower than the upper end of the sealing rib 12 .

Specifically, the thickness of the retaining wall 11 can be smaller than the wall thickness of the elastic sleeve 1, some users' hair is scattered, and black hair is easy to absorb light, resulting in the infrared light sent out near the light generating device (transmitting end). All are absorbed and not reflected back, so even when the phone is close to the face, the phone may judge that it is far away, that is, the screen will brighten when answering a call. By thinning the design of the thickness of the middle retaining wall 11, and deliberately diffracting some light, even if the internal diffraction is too large when the black hair is close, it can still be judged as a close state, and the user experience effect is good.

Specifically, one side of the elastic sleeve 1 is integrally formed with a fool-proof convex portion 13 or a fool-proof concave portion, and a corresponding matching structure (corresponding concave portion or convex portion) is provided in the mobile terminal, so as to cooperate with the concave and convex portions. way to install the elastic sleeve 1. When the mobile terminal is assembled, the elastic sleeve 1 is generally manually installed on the circuit board that has been pasted with the light-sensing proximity sensor. At this time, because the light-sensing proximity sensor is rectangular, it is difficult to distinguish between the left and the right, especially in the case of a large amount. Next, human error is inevitable. By integrally forming a foolproof convex portion 13 or a foolproof concave portion on one side of the elastic sleeve 1, the assembly efficiency can be improved.

The embodiment of the present invention also provides an elastic sleeve 1 for covering a light-sensing proximity sensor in a mobile terminal, the elastic sleeve 1 has a cavity 10 for the light-sensing proximity sensor to be sleeved in, and the elastic sleeve 1 corresponds to A first opening 101 is provided at the visible light sensing device and the proximity light sensing device in the photosensitive proximity sensor, and a second opening 102 is provided at the elastic sleeve 1 corresponding to the proximity light generating device in the photosensitive proximity sensor , the first opening 101 and the second opening 102 are separated by a retaining wall 11 . The center-to-center distance between the first opening 101 and the second opening 102 may be less than 2 mm. After the light-sensing proximity sensor is covered with the elastic cover 1, the light-sensing proximity sensor has good use effect, good product performance reliability, and good dustproof and waterproof effect, which is conducive to improving user experience.

In the elastic sleeve and the mobile terminal provided by the embodiment of the present invention, the elastic sleeve 1 is provided with a first opening 101 corresponding to the visible light sensor device and the proximity light sensor device, and the elastic sleeve 1 is provided corresponding to the proximity light generating device. There is a second opening 102, the first opening 101 and the second opening 102 are separated by a retaining wall 11, the elastic sleeve 1 has little influence on the light-sensing proximity sensor, and the light-sensing proximity sensor has a good use effect. The reliability of the product is high, and the user experience effect is good.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (7)

1. An elastic sleeve is used for assembling a light sensation proximity sensor of a mobile terminal, wherein the light sensation proximity sensor comprises a proximity light generating device, an adjacent visible light sensing device and a proximity light sensing device, and is characterized in that the elastic sleeve is provided with a chamber for the light sensation proximity sensor to be sleeved, a first opening is arranged on the top wall of the chamber corresponding to the visible light sensing device and the proximity light sensing device, a second opening is arranged on the top wall of the chamber corresponding to the proximity light generating device, the first opening and the second opening are separated by a retaining wall, a sealing rib used for being attached to a front panel of the mobile terminal is arranged at the upper end of the top wall of the chamber, the sealing rib is in a closed ring shape and surrounds the first opening and the second opening, and the retaining wall is lower than the upper end of the sealing rib, the thickness of the retaining wall is smaller than that of the elastic sleeve so as to realize diffraction of light, and the retaining wall is black; the end surface of the upper end of the top wall of the chamber and the top of the retaining wall are at the same horizontal level height; one side integrated into one piece of elastic sleeve has prevents slow-witted bellying or prevents slow-witted depressed part, be provided with corresponding cooperation structure on the circuit board that has pasted light sense proximity sensor in the mobile terminal to install through unsmooth complex mode the elastic sleeve.

2. The elastomeric sleeve of claim 1 wherein said chamber has a size less than an outer dimension of said optical proximity sensor.

3. The elastic sleeve of claim 1, wherein the center-to-center distance between the first opening and the second opening is less than 2 mm, and the optical proximity sensor has a length of 3.9 to 4.0 mm and a width of 2.3 to 2.4 mm; the chamber has a length of 3.6 to 3.85 mm and a width of 2.1 to 2.25 mm.

4. The elastomeric sleeve of claim 1 wherein said elastomeric sleeve is formed from a dark colored plastic material.

5. The elastomeric sleeve of claim 1 wherein said elastomeric sleeve is made of black silicone.

6. The elastomeric sleeve of claim 1, wherein said light-sensitive proximity sensor has a gap with said front panel.

7. A mobile terminal comprises a mobile terminal body, wherein a light sensation proximity sensor and an elastic sleeve are arranged in the mobile terminal body, the elastic sleeve is provided with a chamber for the light sensation proximity sensor to be sleeved in, the light sensation proximity sensor comprises a visible light sensing device, a proximity light sensing device and a proximity light generating device which are adjacent, and the mobile terminal is characterized in that a first opening is formed in the position, corresponding to the visible light sensing device and the proximity light sensing device, of the elastic sleeve, a second opening is formed in the position, corresponding to the proximity light generating device, of the elastic sleeve, and the first opening and the second opening are separated by a retaining wall; the mobile terminal body is provided with a front panel, the upper end of the elastic sleeve is provided with a sealing rib which is attached to the front panel, the sealing rib is in a closed ring shape and surrounds the first opening and the second opening, the retaining wall is lower than the upper end of the sealing rib, the thickness of the retaining wall is smaller than the wall thickness of the elastic sleeve, diffraction of light is achieved, and the retaining wall is black; the end surface of the upper end of the elastic sleeve and the top of the retaining wall are positioned at the same horizontal level; one side integrated into one piece of elastic sleeve has prevents slow-witted bellying or prevents slow-witted depressed part, be provided with corresponding cooperation structure on the circuit board that has pasted light sense proximity sensor in the mobile terminal to install through unsmooth complex mode the elastic sleeve.

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