CN216670408U - AR glasses - Google Patents

Abstract

The utility model relates to AR glasses, which comprise a left glasses leg, a right glasses leg, a front glasses frame and a main board, and are characterized in that the main board is arranged in any one of the left glasses leg and the right glasses leg, and the AR glasses further comprise: the connector comprises a plurality of connectors, at least one connector is arranged on the front face of one end, close to the front mirror frame, of the main board, and at least one connector is arranged on the reverse face of one end, close to the front mirror frame, of the main board and used for connecting the FPC and the main board. The connector on the mainboard is reasonably arranged, so that the signal wire arrangement and the signal transmission are facilitated, and the pressure of the signal wire fan line can be reduced.

Description

AR glasses

Technical Field

The utility model belongs to the technical field of wearable equipment, and particularly relates to AR glasses.

Background

In designing AR glasses, it is necessary to design the outer dimensions as small as possible for the purpose of downsizing and weight reduction of the product, and various dimensional data are designed in accordance with the limit values.

However, with the multifunctional requirements of users on AR glasses, such as photographing, gesture recognition, music playing, voice recognition, wireless communication and the like, the devices such as multiple cameras, communication modules (such as Wi-Fi/BT chips), speakers, microphones, batteries and the like are needed for supporting the functions, and the devices and the PCB board bearing the devices need to occupy a large amount of space, so that the space of fragments at each position can be utilized as much as possible for distributed placement, and the layout and wiring difficulty of products is increased.

Therefore, how to design the arrangement of the main board and the arrangement of the signal lines in the AR glasses is important for products with limited internal space.

Disclosure of Invention

The utility model aims to provide AR glasses, which are convenient for signal line arrangement and signal transmission by reasonably arranging connectors on a main board and can reduce the pressure of signal line sectors.

In order to solve the technical problems, the utility model provides the following technical scheme for solving the problems:

the application relates to AR glasses, including left mirror leg, right mirror leg, preceding picture frame and mainboard, its characterized in that, the mainboard sets up in arbitrary mirror leg in left mirror leg and the right mirror leg, AR glasses still include:

the connector comprises a plurality of connectors, at least one connector is arranged on the front face of one end, close to the front mirror frame, of the mainboard, and at least one connector is arranged on the back face of one end, close to the front mirror frame, of the mainboard and used for connecting the FPC and the mainboard.

In the present application, when the number of connectors on the front side of the motherboard is equal to the number of connectors on the back side of the motherboard, the connectors on the front side of the motherboard and the connectors on the back side of the motherboard are symmetrical with respect to the motherboard;

when the number of the connectors on the front side of the main board is not equal to that of the connectors on the back side of the main board, the connectors on the front side of the main board are sequentially arranged in parallel from one end close to the front mirror frame, the connectors on the back side of the main board are sequentially arranged in parallel from one end close to the front mirror frame, and the oppositely arranged connectors are symmetrical about the main board.

In the application, at least the outer wiring terminal of the connector located at the outermost side of one end of the front surface of the main board and/or the outer wiring terminal of the connector located at the outermost side of one end of the back surface of the main board are used for transmitting high-speed differential signals.

In this application, the inside binding post of the connector that is located the most inboard department of the positive one end of mainboard and/or the inside binding post of the connector that is located the most inboard department of the one end of mainboard reverse side are used for transmitting high-speed differential signal.

In this application, the terminals of the remaining connectors are capable of connecting single-ended signals.

In this application, the single-ended signal is a slow GPIO, a power supply signal, or an enable signal.

In this application, the AR glasses further include:

a battery disposed in either one of the left and right temples.

In the present application, the AR glasses further include a display module and/or a WiFi module;

the display module and/or the WiFi module are/is arranged in the front mirror frame respectively.

In the present application, the left and right temples are foldable with respect to the front frame.

The AR glasses provided by the utility model have the following beneficial effects and advantages:

(1) a plurality of connectors are arranged at one end of the main board close to the front mirror frame, so that the space is effectively utilized, and the global signal transmission requirement is met;

(2) the connectors are flexibly arranged, a plurality of signal wires connected to the mainboard are reasonably arranged, and the pressure of fan lines outside the mainboard is reduced;

(3) a plurality of connectors are placed at one end of the mainboard, and the influence of the external wiring of the mainboard on the heat dissipation of the mainboard is reduced.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a block diagram of conventional AR eyewear;

fig. 2 is a structural diagram of a main board disposed in one temple of the AR glasses according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In order to optimize the overall arrangement with the signal transmission line of the mainboard connection of AR glasses, this application relates to an AR glasses, through rationally arranging a plurality of connectors on the mainboard, the signal line of being convenient for arranges and signal transmission, and can reduce signal line fan line pressure simultaneously.

Referring to fig. 1, a conventional AR eyeglass structure is shown.

The AR glasses 100 of the present application include a left temple a, a right temple B, a front frame C, and a main plate 10.

Due to the small size of the portable AR glasses, the main board 10 occupying a large space is intelligently placed in the glasses legs due to the limit design mode of the portable AR glasses.

The main plate 10 is provided in one of the left and right temples a and B, and for the purpose of convenience of explanation, the main plate 10 is described as being built in the left temple a.

The main board 10 is a core part of the AR glasses 100, and mainly includes a main control chip, a DDR (Double Data Rate SDRAM, Double Data synchronous dynamic random access memory) memory chip, a Flash chip, a power supply system, and other components, and is used to complete functions of starting, initializing, and performing conventional operation of the system, and implement various APPs.

Due to the design of the limit mode of the main board 10, only the main control chip and necessary peripheral electric devices thereof can be placed on the main board 10, and other electric devices (such as a display module, a camera module, a communication module, an audio processing module and the like) can be placed in other spaces of the AR glasses only in a fragmentation distribution manner.

The limited space in the left leg a determines the limit design mode of the main board 10, the height of the main board 10 depends on the height of the main control chip, the width of the main board 10 determines the available length of the left leg a, the length value determines the layout of the electrical devices on the main board 10, and the length direction of the main board 10 is consistent with the length direction of the left leg a.

The electrical devices outside the motherboard 19 of the AR glasses 100 need to be connected to the motherboard 10 through a large number of data, control, and power lines, which results in the motherboard 10 needing to fan out, for example, 180 signal lines of various types.

Therefore, in consideration of the layout of the electrical devices on the main board 10, the arrangement of the signal transmission lines, and the heat dissipation of the main board 10, referring to fig. 2, a plurality of connectors are provided on the main board 10.

The connector is a board-to-board connector for connecting other space-mounted electronic devices to the main board 10 through an FPC (Flexible Printed Circuit, not shown).

For example, the connector provided on the motherboard 10 is a male socket, and the connector correspondingly provided on the FPC is a female socket that is engaged with the male socket, and the male socket and the female socket are engaged to connect, so as to transmit signals to the motherboard 10 through the FPC or output signals from the motherboard 10 through the FPC.

At least one of the plurality of connectors is disposed on the front face 12 of the main board 10 near one end 11 of the front bezel C, and the connector on this front face 12 is simply referred to as a front connector, for example, front connectors 410 and 420 in fig. 2.

At least one of the plurality of connectors is provided on the reverse side 13 of the main board 10 near one end 11 of the front bezel C, and the connector on the reverse side 13 is simply referred to as a reverse side connector, for example, a reverse side connector 430 shown in fig. 2.

The front and back connectors may be the same or different in number, and they are provided as the case requires, but they must be provided at the same end of the main board 10, that is, the end 11 of the main board 10 close to the front bezel C.

The number of terminals on the front connector and the back connector can be set according to communication requirements, for example, the number of terminals on the front connector and the back connector is 60.

The front and back connectors are symmetrically arranged with respect to the main board 10 when the number of the front and back connectors is the same.

When the number of the front connectors and the rear connectors is different, the front connectors are arranged side by side in order from the one end 11 of the main board 10, and the rear connectors are arranged side by side in order from the one end 11 of the main board 10, wherein the connectors oppositely disposed on the front side 12 and the rear side 13 are symmetrical with respect to the main board 10.

For example, referring to fig. 2, the front connector 410 is symmetrical with respect to the main board 10 with respect to the back connector 430.

The symmetrical arrangement of the connectors with respect to the motherboard 10 facilitates averaging of the stresses at one end 11 of the motherboard 10, enhancing the overall strength of the motherboard 10.

Many multiclass signal lines of the outside fan-out of mainboard 10, if the distribution position on the connector is unreasonable, will aggravate mainboard 10 and correspond FPC's the design degree of difficulty, consequently, the position of the high-speed differential signal on the rational arrangement connector and single-ended signal further reduces fan line pressure.

In order to optimize the routing on the motherboard 10 and the corresponding FPC, signal line routing on the connector needs to be arranged, wherein the FPC is a multilayer, and the bottommost layer and the topmost layer are differential lines respectively.

Since the connectors on the main board 10 are sequentially juxtaposed, the connectors corresponding to the connectors on the FPC are also sequentially juxtaposed, for example, the connectors on the FPC are disposed on the lowermost layer thereof.

In order to facilitate wiring and avoid the influence of punching holes on the FPC on high-speed differential signals, at least the outer wiring terminals of the connector (the outermost connector for short) positioned at the outermost side in the front connector and/or the outer wiring terminals of the connector (the outermost connector for short) positioned at the outermost side in the back connector are used for transmitting the high-speed differential signals.

Therefore, the differential signals on the main board 10 and the differential signals on the FPC can be transmitted at least by using the differential lines on the bottommost layer of the FPC, and the adverse effect of punching the FPC on the integrity of the high-speed differential signals is avoided.

If there is more than one front connector, for example two, see fig. 2, showing two front connectors 410 and 420, the inner connection terminals 422 of the front connector 420 can be used to transmit high speed differential signals by once via-punching through the FPC, except that the outer connection terminals (i.e., connection terminals 411) of the front outermost connector (i.e., front connector 410) transmit differential signals without punching the FPC.

Similarly, if there is more than one, e.g., two, opposing connectors, the inner terminals of the innermost connector of the opposing connectors are used to transmit high speed differential signals.

Thus, differential signals on the motherboard 10 and differential signals on the FPC can be performed by punching a via hole once on the FPC using the differential line on the topmost layer of the FPC.

Adopt the outside binding post of outermost side connector and the inboard binding post transmission high-speed differential signal of innermost side connector, and do not trompil in FPC inside (with the inboard binding post of utilizing outermost side connector, the outside binding post of innermost side connector, the both sides binding post transmission high-speed differential signal of the connector between outermost side connector and the innermost side connector), avoid FPC inside trompil to cause the problem that the signal was walked the line difficulty and is influenced signal transmission.

In an alternative embodiment, under the condition of not influencing the routing of the signal lines of the FPC, the differential lines between the connector on the FPC and the topmost layer can be connected through punching holes for multiple times in the FPC, so that high-speed differential signals can be transmitted by utilizing the inner side wiring terminals of the outermost connector, the outer side wiring terminals of the innermost connector and the two side wiring terminals of the connector between the outermost connector and the innermost connector.

In the present application, two parallel connectors a and B are disposed on the bottom layer of the FPC, and are used to connect with front connectors 410 and 420 on the motherboard 10, respectively, where the connector a is connected to the front connector 410 correspondingly, the connector B is connected to the front connector 420 correspondingly, and the outer terminal 411 of the front connector 410 and the inner terminal 422 of the front connector 420 are used to transmit high-speed differential signals.

If a connector C for connecting the back connector 430 on the main board 10 is disposed on the other FPC, the outer terminal 431 of the back connector is used for transmitting high-speed differential signals.

The high-speed differential signal as described above may refer to an image signal used by a camera module, a display signal used by a display module, and the like.

In addition, the inner terminals 412 of the front connector 410, the outer terminals 421 of the front connector 420, and the inner terminals 432 of the back connector 430 may be all used for connecting single-ended signals, such as slow-speed GPIO (General-purpose input/output), power signals, or enable signals.

And the sequencing order of the single-ended signals is also optimized and adjusted according to the difficulty of routing of the FPC and the mainboard 10.

The arrangement mode of the connectors on the main board 10 is limited by the limit design mode of the AR glasses 100, on the basis, the positions and signal arrangement of the connectors on the main board 10 are optimized, and the design difficulty of the main board 10 and the corresponding FPC and the fan line pressure of the main board 10 are reduced.

The utility model provides a AR glasses limit utilizes the space, arranges a plurality of connectors, satisfies global signal communication demand, and the connector all sets up at mainboard 10 with the end, reduces the radiating influence of board outer route to mainboard 10.

A battery (not shown) may be provided in the right temple B for weight balance of the AR glasses 100.

In this application, preceding picture frame C mainly contains the display module assembly.

The display module comprises a display unit and a display control unit, wherein the display control unit receives signals transmitted by the main board 10 and displays images in the display unit after processing.

Because be 90 positional relation between preceding picture frame C and the left mirror leg A, the display module assembly can be connected with mainboard 10 through FPC.

Referring to fig. 1, the left and right temples a and B may be respectively foldable with respect to the front frame C or respectively fixed at 90 ° to the front frame C.

In order to implement wireless network connection of the AR glasses 100, the AR glasses 100 further include a WiFi module (not shown) for connecting an external router, so as to implement a wireless communication function of the AR glasses 100.

In this application, the wiFi module also sets up in preceding picture frame C.

Because be 90 positional relation between preceding picture frame C and the left side mirror leg A, in this application, the wiFi module also is connected with mainboard 10 through FPC.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. The utility model provides a AR glasses, includes left mirror leg, right mirror leg, preceding picture frame and mainboard, its characterized in that, the mainboard sets up in any mirror leg in left mirror leg and the right mirror leg, AR glasses still include:

the connector comprises a plurality of connectors, at least one connector is arranged on the front surface of one end, close to the front mirror frame, of the main board, and at least one connector is arranged on the back surface of one end, close to the front mirror frame, of the main board and used for connecting the FPC and the main board.

2. The AR glasses according to claim 1,

when the number of the connectors on the front side of the mainboard is equal to that of the connectors on the back side of the mainboard, the connectors on the front side of the mainboard and the connectors on the back side of the mainboard are symmetrical about the mainboard;

when the number of the connectors on the front side of the main board is not equal to that of the connectors on the back side of the main board, the connectors on the front side of the main board are sequentially arranged in parallel from one end close to the front mirror frame, the connectors on the back side of the main board are sequentially arranged in parallel from one end close to the front mirror frame, and the oppositely arranged connectors are symmetrical about the main board.

3. The AR glasses according to claim 1,

and at least the outer wiring terminal of the connector at the outermost side of one end of the front surface of the mainboard and/or the outer wiring terminal of the connector at the outermost side of one end of the back surface of the mainboard are used for transmitting high-speed differential signals.

4. The AR glasses according to claim 3,

and the inner wiring terminal of the connector positioned at the innermost position of one end of the front surface of the mainboard and/or the inner wiring terminal of the connector positioned at the innermost position of one end of the back surface of the mainboard are used for transmitting high-speed differential signals.

5. The AR glasses according to claim 3, wherein the terminals of the remaining connectors are capable of connecting single-ended signals.

6. The AR glasses according to claim 5, wherein the single-ended signal is a slow GPIO, a power supply signal, or an enable signal.

7. The AR glasses according to any of claims 1 to 6, further comprising:

a battery disposed in either one of the left and right temples.

8. The AR glasses according to any of claims 1 to 6, further comprising a display module and/or a WiFi module;

the display module and/or the WiFi module are/is arranged in the front mirror frame respectively.

9. The AR glasses according to any of claims 1 to 6, wherein the left and right temples are foldable with respect to the front frame.

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