CN220064845U - Electronic equipment - Google Patents

Abstract

The utility model discloses electronic equipment, which comprises a middle frame, a display module and a fingerprint identification module, wherein the display module comprises a screen, the screen is arranged on the middle frame, the fingerprint identification module comprises a second FPC (flexible printed circuit), a fingerprint identification unit and a capacitance detection unit, the second FPC is connected with the middle frame, the fingerprint identification unit is arranged on one side of the second FPC, which faces the screen, the capacitance detection unit is arranged on one side of the second FPC, which faces the screen, a containing hole is formed in the side face of the middle frame, which faces the screen, and the capacitance detection unit is matched in the containing hole. The electronic equipment provided by the utility model has the advantages of avoiding the contact of the capacitance detection unit and the electronic element on the screen FPC and having low capacitance short circuit probability of the capacitance detection unit.

Description

Electronic equipment

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to electronic equipment.

Background

In the related art, in an electronic device with a fingerprint recognition function, a capacitance detection unit of a fingerprint recognition module is generally disposed at one side of a screen FPC in a display module, which is away from the screen, and because the capacitance detection unit is adhered to a middle frame and is adjacent to the fingerprint recognition unit in the fingerprint recognition module, when glue lifting occurs or the screen is deformed under pressure at the fingerprint recognition unit too much, there is a defect that the capacitance detection unit contacts with an electronic element in the display module to cause a capacitance short circuit failure.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides the electronic equipment, which has the advantages of avoiding the contact of the capacitance detection unit and the electronic element on the screen FPC and having low capacitance short circuit probability of the capacitance detection unit.

The electronic equipment comprises a middle frame, a display module and a fingerprint identification module, wherein the display module comprises a screen, and the screen is arranged on the middle frame; the fingerprint identification module comprises a second FPC, a fingerprint identification unit and a capacitance detection unit, wherein the second FPC is connected with the middle frame, the fingerprint identification unit is arranged on one side of the second FPC facing the screen, the capacitance detection unit is arranged on one side of the second FPC facing away from the screen, a containing hole is formed in the side of the middle frame facing the screen, and the capacitance detection unit is matched in the containing hole.

According to the electronic equipment provided by the embodiment of the utility model, the second FPC is connected with the middle frame so as to fix the fingerprint identification unit and the capacitance detection unit on the middle frame. At this time, through setting up the electric capacity detecting element in one side that the second FPC deviates from the screen to make electric capacity detecting element cooperation in the accommodation hole, stopped the possibility that electric capacity detecting element contacted with arbitrary electronic component on the display module assembly from this, and then effectively reduced electric capacity detecting element and taken place the electric capacity short circuit and inefficacy probability, fingerprint identification module's fingerprint identification reliability is high.

In some embodiments, the receiving hole penetrates the middle frame in a thickness direction of the middle frame.

In some embodiments, the receiving hole includes a first hole section and a second hole section arranged in a direction away from the screen, a cross-sectional area of the first hole section is larger than a cross-sectional area of the second hole section, the middle frame has a stepped surface that engages the first hole section and the second hole section, at least a portion of the second FPC fits within the first hole section and adheres to the stepped surface, and the capacitance detection unit fits within the second hole section.

In some embodiments, the fingerprint recognition module further includes a substrate, the substrate is disposed on a side of the second FPC facing away from the capacitance detection unit, and the substrate is fitted in the first hole section.

In some embodiments, the first hole section is a profiled hole, and the cross-sectional outer profile of the base plate matches the cross-sectional outer profile of the first hole section.

In some embodiments, the substrate is bonded to the second FPC.

In some embodiments, the display module further includes a first FPC electrically connected to the screen and located between the screen and the middle frame, and the fingerprint recognition unit, the capacitance detection unit, and the electronic components on the first FPC are arranged at a projection interval on a projection plane parallel to the screen.

In some embodiments, the fingerprint recognition unit and the capacitance detection unit are each arranged at intervals along a first direction with the electronic component on the first FPC.

In some embodiments, the fingerprint recognition units and the capacitance detection units are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

In some embodiments, the display module further includes a protection plate, the protection plate is attached to a side of the screen facing the middle frame, and a portion of the first FPC provided with the electronic component is attached to a side of the protection plate facing the middle frame.

Drawings

Fig. 1 is a top view of a middle frame and a fingerprint recognition module in an electronic device according to an embodiment of the utility model.

Fig. 2 is a bottom view of a middle frame and a fingerprint recognition module in an electronic device according to an embodiment of the present utility model.

Reference numerals:

1. a middle frame; 11. an accommodation hole; 2. a fingerprint identification module; 21. a second FPC; 22. a fingerprint identification unit; 23. a capacitance detection unit; 24. a substrate.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

An electronic device according to an embodiment of the present utility model is described below with reference to fig. 1 and 2.

The electronic equipment according to the embodiment of the utility model comprises a middle frame 1, a display module and a fingerprint identification module 2. The display module assembly includes the screen, the screen is installed in the middle frame 1. The fingerprint identification module 2 includes second FPC21, fingerprint identification unit 22 and electric capacity detection unit 23, and second FPC21 links to each other with center 1, and fingerprint identification unit 22 sets up in the one side of second FPC21 towards the screen in order to guarantee electronic equipment's fingerprint identification function, and electric capacity detection unit 23 sets up in one side that second FPC21 deviates from the screen, is equipped with accommodation hole 11 on the side of center 1 towards the screen, and electric capacity detection unit 23 cooperation is in accommodation hole 11.

According to the electronic device of the embodiment of the present utility model, the second FPC21 is connected to the center 1 to achieve fixation of the fingerprint recognition unit 22 and the capacitance detection unit 23 to the center 1. At this time, the capacitance detection unit 23 is arranged on one side of the second FPC21, which is away from the screen, and the capacitance detection unit 23 is matched in the accommodating hole 11, so that the possibility that the capacitance detection unit 23 is contacted with any electronic element on the display module is eliminated, the probability that the capacitance detection unit 23 is in short circuit and fails is effectively reduced, and the fingerprint identification reliability of the fingerprint identification module 2 is high.

The capacitance detection unit 23 in the fingerprint recognition module 2 is used for detecting capacitance change when a finger approaches the fingerprint recognition unit 22, and collecting the value of the capacitance change to complete fingerprint collection. The fingerprint recognition unit 22 and the capacitance detection unit 23 in the fingerprint recognition module 2 are respectively arranged at two ends of the second FPC21, and the fingerprint recognition unit 22 is adjacent to the screen and is used for recognizing the fingerprint of the user.

In some embodiments, as shown in fig. 2, the receiving hole 11 penetrates the center 1 in the thickness direction of the center 1.

Thereby, the processing of the accommodating hole 11 on the middle frame 1 is convenient, and interference of the capacitance detecting unit 23 with the middle frame 1 or other components due to processing errors of the accommodating hole 11 and/or assembly errors of the capacitance detecting unit 23 on the middle frame 1 is avoided.

Specifically, on a projection plane parallel to the screen, the projection of the capacitance detection unit 23 is completely overlapped with the projection of the accommodation hole 11. In other words, when the capacitance detecting unit 23 is fitted in the accommodation hole 11, the capacitance detecting unit 23 is spaced apart from the wall surface of the accommodation hole 11.

In some embodiments, the receiving hole 11 includes a first hole section and a second hole section arranged in a direction away from the screen, the first hole section having a larger cross-sectional area than the second hole section. The middle frame 1 has a stepped surface that engages the first hole section and the second hole section, and at least part of the second FPC21 is fitted in the first hole section and bonded to the stepped surface, and the capacitance detection unit 23 is fitted in the second hole section.

The part of the second FPC21 provided with the capacitance detection unit 23 can be matched with the outer contour of the cross section of the first hole section, and after the part of the second FPC21 provided with the capacitance detection unit 23 is matched in the first hole section and bonded with the step surface, the accurate matching of the capacitance detection unit 23 in the second hole section can be ensured.

Specifically, the capacitance detecting unit 23 is also spaced apart from the wall surface of the second hole section when fitted therein. Meanwhile, the capacitance detection units 23 are all located in the second hole section and cannot protrude out of one side of the middle frame 1, which faces away from the screen, so that the risk of capacitance short circuit caused by contact of the capacitance detection units 23 with other parts of the electronic equipment is avoided.

In some embodiments, as shown in fig. 1, the fingerprint recognition module 2 further includes a substrate 24, the substrate 24 is disposed on a side of the second FPC21 facing away from the capacitance detection unit 23, and the substrate 24 is fitted in the first hole section.

The substrate 24 supports the portion of the second FPC21 where the capacitance detecting unit 23 is provided, at this time, the substrate 24 is fitted in the first hole section and presses the second FPC21 toward the step surface, and thus the adhesion between the second FPC21 and the step surface can be completed, and the adhesion between the second FPC21 and the step surface is simple and reliable.

In some embodiments, the first hole segment is a profiled hole, and the cross-sectional outer profile of the base plate 24 matches the cross-sectional outer profile of the first hole segment.

Therefore, the bonding reliability between the second FPC21 and the step surface is further ensured, and the phenomenon that the second FPC21 is offset relative to the step surface to cause the part of the second FPC21 between the capacitance detection unit 23 and the fingerprint identification unit 22 to tilt is effectively avoided, so that the second FPC21 is reliably attached to the middle frame 1 and is spaced apart from the screen.

Specifically, as shown in fig. 1, the first hole section is a square hole, and the second hole section is also a square hole, and at this time, the side length of the cross-sectional outer profile of the first hole section is longer than the side length of the cross-sectional outer profile of the second hole section.

In some embodiments, the substrate 24 is bonded to the second FPC 21. Thus, the connection between the substrate 24 and the second FPC21 is simple and reliable.

Specifically, the base plate 24 is a steel plate, and according to the thickness of the middle frame 1 at the accommodating hole 11, the steel plate can be completely accommodated in the first hole section, or can be partially accommodated in the first hole section, and only the steel plate is required to be spaced from the screen.

In some embodiments, the display module further includes a first FPC electrically connected to the screen and located between the screen and the middle frame 1. Wherein the first FPC is electrically connected with the functional layer in the screen. The fingerprint recognition unit 22, the capacitance detection unit 23, and the electronic components on the first FPC are arranged at a projection interval on a projection plane parallel to the screen.

Through setting up the projection interval arrangement on the projection plane that is on a parallel with the screen of electronic component on the first FPC and fingerprint identification unit 22, when fingerprint identification unit 22 received the oppression from screen thickness direction, the possibility that the arbitrary electronic component contact on fingerprint identification unit 22 and the first FPC has been broken, and then further reduced the probability that capacitance detection unit 23 takes place the electric capacity short circuit and became invalid, fingerprint identification module 2's fingerprint identification reliability is high.

Specifically, the electronic component on the first FPC includes a capacitor, a resistor, and the like, and the electronic component is located on a side of the first FPC facing away from the screen.

In some embodiments, as shown in fig. 1, the fingerprint recognition unit 22 and the capacitance detection unit 23 are arranged at intervals along a first direction with the electronic components on the first FPC, and the fingerprint recognition unit 22 and the capacitance detection unit 23 are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction.

Thus, on the basis of not changing the relative positions of the fingerprint identification unit 22 and the first FPC, the fingerprint identification unit 22 is moved along the first direction and the second direction to be spaced apart from the electronic components on the first FPC, so that the possibility that the fingerprint identification unit 22 is contacted with any electronic component on the first FPC can be broken, and the appearance of the electronic equipment is not affected.

Specifically, as shown in fig. 1, taking an electronic device as an example of a mobile phone, the first direction is a length direction of the electronic device, and the second direction is a width direction of the electronic device. Further, at this time, the length of the second FPC21 does not need to be changed, and in the present embodiment, the second FPC21 extends in the second direction.

In some embodiments, the display module further includes a protection plate, wherein the protection plate is attached to a side of the screen facing the middle frame 1, and a portion of the first FPC provided with the electronic component is attached to a side of the protection plate facing the middle frame 1.

The protection plate effectively prevents the fingerprint identification module 2 and other parts from being in error contact with the screen to damage the screen, and meanwhile, the screen is prevented from being interfered by electronic elements in the electronic equipment.

Specifically, the shielding plate is preferably a copper plate.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. An electronic device, comprising:

a middle frame;

the display module comprises a screen, and the screen is arranged on the middle frame; and

the fingerprint identification module, the fingerprint identification module includes second FPC, fingerprint identification unit and electric capacity detection unit, the second FPC with the center links to each other, the fingerprint identification unit set up in the second FPC orientation one side of screen, electric capacity detection unit set up in the second FPC deviates from one side of screen, the center orientation is equipped with the accommodation hole on the side of screen, electric capacity detection unit cooperation is in the accommodation hole.

2. The electronic device of claim 1, wherein the receiving hole penetrates the center in a thickness direction of the center.

3. The electronic device of claim 1, wherein the receiving hole includes a first hole section and a second hole section arranged in a direction away from the screen, a cross-sectional area of the first hole section is larger than a cross-sectional area of the second hole section, the middle frame has a stepped surface that engages the first hole section and the second hole section, at least a portion of the second FPC fits within the first hole section and adheres to the stepped surface, and the capacitance detection unit fits within the second hole section.

4. The electronic device of claim 3, wherein the fingerprint recognition module further comprises a substrate disposed on a side of the second FPC facing away from the capacitance detection unit, the substrate being fitted in the first hole section.

5. The electronic device of claim 4, wherein the first hole segment is a profiled hole and the cross-sectional outer profile of the substrate matches the cross-sectional outer profile of the first hole segment.

6. The electronic device of claim 4, wherein the substrate is bonded to the second FPC.

7. The electronic device of any one of claims 1-6, wherein the display module further comprises a first FPC electrically connected to the screen and located between the screen and the middle frame, and the electronic components on the fingerprint recognition unit, the capacitance detection unit, and the first FPC are arranged at a projection interval on a projection plane parallel to the screen.

8. The electronic device of claim 7, wherein the fingerprint recognition unit and the capacitance detection unit are each arranged at intervals along a first direction with the electronic components on the first FPC.

9. The electronic device of claim 8, wherein the fingerprint recognition unit and the capacitance detection unit are arranged at intervals along a second direction, the second direction being perpendicular to the first direction.

10. The electronic device according to claim 7, wherein the display module further includes a protection plate attached to a side of the screen facing the center frame, and a portion of the first FPC where the electronic component is provided is attached to a side of the protection plate facing the center frame.