Wearable display device

Abstract

The embodiment of the utility model discloses a wearable display device, and relates to but is not limited to a display technology. The wearable display device can be applied to the electronic work card and the electronic chest card and worn in front of the chest, and display information of the display unit can be replaced, so that the electronic work card and the electronic chest card can be reused. The peripheral wall is provided with a plurality of protrusions arranged at intervals, the protrusions can be matched with the clamping grooves located in the middle frame, connection of the middle frame and the rear shell is achieved, the middle frame can support the rear shell, and the overall strength of the wearable display device is improved. The circuit board and the display unit can be contained in the mounting cavity defined by the middle frame, and the thickness of the wearable display device is prevented from being increased due to mounting of the circuit board and the display unit. In addition, the front cover can be contained in the containing cavity and attached to the middle frame, and the thickness of the wearable display device increased due to the arrangement of the front cover is reduced. Under the condition that the overall strength of the wearable display device is guaranteed, the thickness of the wearable display device is small, the decorous feeling is reduced, and the wearable display device is convenient to wear.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to but are not limited to display technology, and in particular to a wearable display device. Background Art

[0002] Some wearable display devices, such as electronic work badges or electronic chest badges, are too thick and heavy to be worn. Utility Model Content

[0003] An embodiment of the present disclosure provides a wearable display device, aiming to solve the problem that some wearable display devices are overall thick and heavy and inconvenient to wear.

[0004] The present disclosure provides a wearable display device, comprising:

[0005] A rear shell, comprising a rear cover and a circumferential wall, wherein the circumferential wall surrounds the rear cover and is connected to the circumferential outer side of the rear cover, the rear cover and the circumferential wall can enclose a receiving cavity, and a side of the circumferential wall facing the receiving cavity is provided with a plurality of protrusions arranged at intervals;

[0006] A middle frame is received in the receiving cavity and is attached to the back cover. The middle frame is an annular structure and can be enclosed to form a mounting cavity. The middle frame has a plurality of slots. The middle frame and the circumferential wall are connected to the plurality of protrusions in a one-to-one correspondence through the plurality of slots.

[0007] A circuit board is housed in the mounting cavity and fixedly connected to the rear housing;

[0008] A display unit, electrically connected to the circuit board, the display unit being received in the mounting cavity and affixed to a side of the circuit board away from the rear cover; and

[0009] The front cover is received in the receiving cavity, the front cover is in contact with a side of the middle frame away from the rear cover, and is located on the display side of the display unit.

[0010] Implementing the embodiments of the present disclosure will have the following beneficial effects:

[0011] The wearable display device of the above scheme can be applied to electronic work badges and electronic chest badges and worn on the chest. The display information of the display unit can be replaced, so that the electronic work badges and electronic chest badges can be reused. The circumferential wall is provided with a plurality of protrusions arranged at intervals, which can cooperate with the card slots located in the middle frame to realize the connection between the middle frame and the rear shell, so that the middle frame can support the rear shell and improve the overall strength of the wearable display device. The installation cavity enclosed by the middle frame can accommodate the circuit board and the display unit, avoiding the installation of the circuit board and the display unit to increase the thickness of the wearable display device. In addition, the front cover can be accommodated in the accommodating cavity and fit with the middle frame, reducing the thickness of the wearable display device increased by setting the front cover. In this way, through the assembly method of the rear shell, the middle frame, and the front cover, and the installation layout of the circuit board and the display unit in the installation cavity, the thickness of the wearable display device is thinner while ensuring the overall strength of the wearable display device, reducing the sense of heaviness and making it easier to wear.

[0012] Other aspects will be apparent upon reading and understanding the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present disclosure and do not constitute a limitation on the technical solution of the present disclosure.

[0014] Figure 1 is a schematic structural diagram of a wearable display device in one embodiment of the present disclosure;

[0015] Figure 2 is a side view of a wearable display device in one embodiment of the present disclosure;

[0016] Figure 3 This is a front view of the wearable display device without the wearing structure in one embodiment of the present disclosure;

[0017] Figure 4 for Figure 3 Middle AA section view;

[0018] Figure 5 for Figure 4 The enlarged structural diagram of the middle B part;

[0019] Figure 6 for Figure 5 The enlarged structural diagram of the middle C part;

[0020] Figure 7 for Figure 3 Rear view;

[0021] Figure 8 for Figure 3 Schematic diagram of the explosion structure;

[0022] Fig. 9 for Figure 8 The enlarged structural diagram of the middle D part;

[0023] Fig.10 for Fig. 9 The enlarged structural diagram of the middle E part;

[0024] Fig.11 This is a schematic diagram of assembling a circuit board and a display unit in a wearable display device in an embodiment of the present disclosure;

[0025] Fig.12 Schematic diagram of the structure of a rear shell in a wearable display device in one embodiment of the present disclosure;

[0026] Fig.13 This is a schematic diagram of the structure of the wearable display device after the second driving member is installed in one embodiment of the present disclosure;

[0027] Fig.14 This is a schematic diagram of the structure of a wearable display device after the middle frame is installed in one embodiment of the present disclosure;

[0028] Fig.15 This is a schematic diagram of the structure of a wearable display device after a first driving member is installed in one embodiment of the present disclosure;

[0029] Fig.16 This is a schematic diagram of the structure of a wearable display device after a circuit board, a display unit and a power supply unit are installed in one embodiment of the present disclosure;

[0030] Fig.17 This is a schematic diagram of the structure of the wearable display device after the front cover is installed in one embodiment of the present disclosure.

[0031] Description of Figure Numbers:

[0032] 10. rear shell; 11. rear cover; 111. first rivet column; 112. second rivet column; 12. circumferential wall; 121. protrusion; 1211. guide surface; 13. arc surface; 14. first reinforcement member; 15. second reinforcement member; 16. annular wall; 20. middle frame; 21. connecting arm; 22. end; 23. abutment portion; 30. circuit board; 31. first button; 32. hardware interface; 33. second button; 34. sound unit; 35. sound receiving unit; 36. power supply unit; 37. coil; 40. display unit; 41. terminal; 42. flexible circuit board; 50. front cover; 51. transparent area; 52. non-transparent area; 60. first driving member; 61. Pressing part; 62. Limiting part; 63. Positioning part; 70. Wearing structure; 71. Belt-shaped part; 72. Ring-shaped mechanism; 73. Rotating part; 74. Clamping part; 80. Second driving part; 81. Main body; 82. Elastic arm; 100. Accommodating cavity; 200. Installing cavity; 300. Card slot; 400. Avoiding slot; 500. First key hole; 600. Through hole; 601. Accommodating slot; 602. Positioning slot; 700. Connecting hole; 701. Plug-in hole; 800. Notch; 900. Through slot; 901. Through hole; 1000. Second key hole; 1100. Sound outlet hole; 1200. Sound receiving hole; 1201. Installing slot; 1300. Fixing slot.

[0033] The realization of the objectives, functional features and advantages of the present disclosure will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The present disclosure describes multiple embodiments, but the description is exemplary rather than restrictive, and it is apparent to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0035] The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in the present disclosure may also be combined with any conventional features or elements to form a unique invention scheme defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present disclosure may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other limitations. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0036] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described in the present disclosure, the method or process should not be limited to the steps in the specific order described. As will be understood by those of ordinary skill in the art, other orders of steps are also possible. Therefore, the specific order of the steps set forth in the specification should not be interpreted as a limitation on the claims. In addition, the claims for the method and / or process should not be limited to the steps performed in the order written, and those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present disclosure.

[0037] Please combine Figures 1 to 9 , Fig.11 , Fig.12 , Fig.14 , Fig.16 and Fig.17 , the wearable display device provided by the embodiment of the present disclosure is now described. The wearable display device includes a rear shell 10, a middle frame 20, a circuit board 30, a display unit 40 and a front cover 50. Among them, the rear shell 10 includes a rear cover 11 and a circumferential wall 12, the circumferential wall 12 surrounds the rear cover 11 and is connected to the circumferential outer side of the rear cover 11, the rear cover 11 and the circumferential wall 12 can be combined to form a receiving cavity 100, and a plurality of spaced protrusions 121 are provided on the side of the circumferential wall 12 facing the receiving cavity 100. The middle frame 20 is accommodated in the receiving cavity 100 and fits the rear cover 11. The middle frame 20 is an annular structure and can be combined to form an installation cavity 200. The middle frame 20 has a plurality of card slots 300, and the middle frame 20 and the circumferential wall 12 are connected one by one with the plurality of protrusions 121 through the plurality of card slots 300. In the embodiment of the present disclosure, the connection between the rear cover 11 and the circumferential wall 12 has an arc surface 13 to prevent cutting of clothing.

[0038] The circuit board 30 is accommodated in the installation cavity 200 and fixedly connected to the rear shell 10. The display unit 40 is electrically connected to the circuit board 30, and the display unit 40 is accommodated in the installation cavity 200 and is attached to the side of the circuit board 30 away from the rear cover 11. In the embodiment of the present disclosure, the display unit 40 can be an ink screen using electrophoretic display technology. The thickness of the display unit 40 can be about 2 mm. The circuit board 30 is provided with a terminal 41 electrically connected to the display unit 40, and the terminal 41 is electrically connected to the display unit 40 through a flexible printed circuit 42 (Flexible Printed Circuit, referred to as FPC), and the middle frame 20 is provided with an avoidance groove 400 for avoiding the flexible circuit board 42. The display unit 40 can be fixed to a specified position of the circuit board 30 by bonding.

[0039] The front cover 50 is received in the receiving cavity 100, and the front cover 50 is attached to the side of the middle frame 20 away from the rear cover 11, and is located on the display side of the display unit 40. The front cover 50 includes a transparent area 51 located in the middle and a non-transparent area 52 located around the transparent area 51, and the transparent area 51 corresponds to the display area of ​​the display unit 40. In the embodiment of the present disclosure, the front cover 50 is a plate-like structure of a whole surface entity, and is covered on the entire display unit 40 and attached to the display unit 40. The transparent area 51 corresponds to the display area of ​​the display unit 40, so that the image displayed by the display unit 40 can be viewed through the transparent area 51, and the non-transparent area 52 can cover the non-display area of ​​the display unit 40 to beautify the appearance. The non-transparent area 52 can be bonded to the middle frame 20 and the circumferential wall 12. It can be understood that in other embodiments, the front cover 50 can be a frame-like structure, which can be covered on the peripheral non-display area of ​​the display side of the display unit 40.

[0040] In summary, the implementation of the disclosed embodiments will have the following beneficial effects: the wearable display device of the above scheme can be applied to electronic work badges and electronic chest badges and worn on the chest, and the display information of the display unit 40 can be replaced, so that the electronic work badges and electronic chest badges can be reused. The circumferential wall 12 is provided with a plurality of protrusions 121 arranged at intervals, which can cooperate with the card slot 300 located in the middle frame 20 to achieve the connection between the middle frame 20 and the rear shell 10, so that the middle frame 20 can support the rear shell 10 and improve the overall strength of the wearable display device. The installation cavity 200 enclosed by the middle frame 20 can accommodate the circuit board 30 and the display unit 40, avoiding the installation of the circuit board 30 and the display unit 40 to increase the thickness of the wearable display device. In addition, the front cover 50 can be accommodated in the accommodating cavity 100 and fit with the middle frame 20, reducing the thickness of the wearable display device increased by setting the front cover 50. In this way, through the assembly method of the back shell 10, the middle frame 20, and the front cover 50, and the installation layout of the circuit board 30 and the display unit 40 in the installation cavity 200, the overall strength of the wearable display device is ensured, while the thickness of the wearable display device is made thinner, the sense of thickness is reduced, and it is convenient to wear.

[0041] In an exemplary embodiment, please combine Fig.12 and Fig.13 The side of the protrusion 121 facing away from the rear cover 11 has a guide surface 1211, and the guide surface 1211 is inclined toward the rear cover 11 from the side close to the circumferential wall 12 to the side away from the circumferential wall 12. The setting of the guide surface 1211 makes it easy for the circumferential outer side of the middle frame 20 to slide relative to the guide surface 1211 when the middle frame 20 is installed, and then it can pass the stopper of the protrusion 121. When the middle frame 20 slides relative to the guide surface 1211 until the slot 300 is directly opposite to the protrusion 121, the protrusion 121 can slide into the slot 300, so that the middle frame 20 and the circumferential wall 12 are engaged. Fig. 9 and Fig.14 As shown, in the embodiment of the present disclosure, the card slot 300 runs through the middle frame 20, so that the card slot 300 is more convenient to process, and when the protrusion 121 is engaged with the card slot 300, the gas can be easily discharged from the card slot 300, thereby ensuring the fit between the middle frame 20 and the circumferential wall 12.

[0042] In an exemplary embodiment, please combine Figures 5 to 8 , Fig.11 and Figures 14 to 17 At least one first button 31 is arranged on the circumferential outer side of the circuit board 30, and the first button 31 is electrically connected to the circuit board 30. By arranging the first button 31 on the circumferential outer side of the circuit board 30, it is possible to avoid increasing the thickness of the wearable display device due to the arrangement of the first button 31, thereby ensuring the lightness and thinness of the wearable display device.

[0043] The circumferential wall 12 is provided with a first key hole 500 corresponding to the first button 31, and the middle frame 20 is provided with a through hole 600 connected between the mounting cavity 200 and the first key hole 500. The wearable display device also includes a first driving member 60, which is installed in the first key hole 500 and the through hole 600, and is configured to touch the first button 31 by moving relative to the circuit board 30. In this way, by pressing the first driving member 60, it is convenient to control the first button 31 to send an electrical signal to the circuit board 30, thereby controlling the display content of the display unit 40. For example, the circuit board 30 can be provided with a timing module, and the first button 31 is driven by the first driving member 60 to turn on the timing function and display the timing data on the display unit 40. In the embodiment of the present disclosure, the number of the first buttons 31 is two, and they are arranged opposite to each other along the upper and lower ends when the wearable display device is worn, so as to facilitate one-handed control. Correspondingly, the number of the first key hole 500, the through hole 600 and the first driving member 60 is consistent with the number of the first buttons 31, and corresponds one to one.

[0044] In the disclosed embodiment, the wearable display device may further include a communication module electrically connected to the circuit board 30. The communication module is configured to wirelessly communicate with an external device. The communication module may be a Bluetooth antenna, a near field communication (NFC) antenna, or the like. Through the circuit board 30 and the communication module, the wearable display device may wirelessly communicate with an external device to change the display information of the display unit 40. The display of the display unit 40 or communication with an external device may be controlled by pressing the first button 31.

[0045] In an exemplary embodiment, please combine Figure 5 , Figure 6 , Fig.15 and Fig.16 , the first driving member 60 includes a pressing portion 61 and a limiting portion 62. The pressing portion 61 is guided and matched with the circumferential wall 12 and the middle frame 20 through the first key hole 500 and the through hole 600 respectively to ensure the movement accuracy of the first driving member 60 and the touch effect of the first button 31. The pressing portion 61 is at least partially exposed to the circumferential wall 12 to facilitate thumb control. The limiting portion 62 is connected to the pressing portion 61 and can be limited and matched with the side of the middle frame 20 facing the installation cavity 200 to prevent the first driving member 60 from separating from the circumferential wall 12 through the first key hole 500. The first button 31 has a reset structure, which can be reset after the external force of the first driving member 60 is removed to abut the limiting portion 62 against the middle frame 20. The first driving member 60 can be pre-installed in the first key hole 500 and the through hole 600 before the circuit board 30 is installed on the wearable display device.

[0046] In the embodiment of the present disclosure, the pressing portion 61 may be made of an elastic material. The material of the limiting portion 62 may be consistent with that of the pressing portion 61 or may be made of a hard material to improve the limiting stability.

[0047] In an exemplary embodiment, please combine Figure 5 , Figure 6 , Fig. 9 , Fig.10 , Fig.14 and Fig.15 The middle frame 20 is provided with a receiving groove 601 on one side facing the installation cavity 200. The limiting portion 62 is received in the receiving groove 601, which can limit the position of the limiting portion 62 and ensure the position accuracy of the first driving member 60. In the disclosed embodiment, the receiving groove 601 is connected to the through hole 600.

[0048] The first driving member 60 also includes a positioning portion 63, and the positioning portion 63 is arranged on at least one of the pressing portion 61 and the limiting portion 62, and the middle frame 20 is provided with a positioning groove 602 guided and positioned with the positioning portion 63. The arrangement of the positioning portion 63 and the positioning groove 602 can facilitate the rapid positioning and installation of the first driving member 60 and the middle frame 20, and can prevent the first driving member 60 from being installed in the opposite direction. In the embodiment of the present disclosure, the positioning portion 63 is arranged on the circumferential outer side of the limiting portion 62 and is a convex structure. The positioning groove 602 is connected to the accommodating groove 601. The pressing portion 61, the limiting portion 62 and the positioning portion 63 are all rounded to prevent the movement of the first driving member 60 from causing scratches on the circumferential wall 12 and the middle frame 20.

[0049] In an exemplary embodiment, please combine Figure 1 and Figures 9 to 17 , at least one hardware interface 32 is also provided on the circumferential outer side of the circuit board 30. The hardware interface 32 is electrically connected to the circuit board 30. The hardware interface 32 can facilitate the connection of the wearable display device with other hardware devices for data output. In the disclosed embodiment, the hardware interface 32 is a type-c interface. It can be understood that in other embodiments, the hardware interface 32 can also be an IDE interface, a SCSI interface, a SATA interface or other USB interfaces other than the type-c interface. The hardware interface 32 can be connected to the circuit board 30 by welding.

[0050] The rear shell 10 further includes a first reinforcement member 14. The first reinforcement member 14 is disposed on at least one of the rear cover 11 and the circumferential wall 12. In the disclosed embodiment, the first reinforcement member 14 is connected to both the rear cover 11 and the circumferential wall 12, which can improve the position stability and strength of the first reinforcement member 14, and can increase the strength of the rear cover 11 and the circumferential wall 12, thereby preventing the hardware interface 32 from being greatly deformed when plugging in other hardware devices. The first reinforcement member 14 is received in the installation cavity 200 and has a connection hole 700;

[0051] The peripheral wall 12 is provided with a plug hole 701, and the hardware interface 32 is installed in the connection hole 700 and exposed in the plug hole 701, so as to facilitate the connection of the hardware interface 32 with other hardware devices. The first reinforcement member 14 can also reduce the risk of tearing of the plug hole 701 during use.

[0052] The middle frame 20 is provided with a notch 800, which is provided to avoid the first reinforcement member 14, so as to facilitate the layout of the first reinforcement member 14 on the back cover 11, and the size design of the first reinforcement member 14 is relatively free and is not restricted by the middle frame 20. In addition, the notch 800 and the first reinforcement member 14 can also form a positioning fit, which facilitates the rapid installation of the middle frame 20 and the back cover 10.

[0053] In an exemplary embodiment, please combine Fig. 9 , Fig.10 , Fig.14 and Fig.15 The middle frame 20 is also provided with a connecting arm 21, and the two ends 22 of the middle frame 20 forming the notch 800 are connected to improve the strength of the middle frame 20 and reduce the strength attenuation of the middle frame 20 caused by the notch 800. The end 22 is fitted with the first reinforcement 14 to position and connect the middle frame 20 with the first reinforcement 14, thereby ensuring the assembly accuracy of the middle frame 20 and the rear shell 10.

[0054] The mounting cavity 200 accommodates at least one first rivet column 111 connected to the back cover 11, and the connecting arm 21 is hot-riveted to the first rivet column 111. The setting of the first rivet column 111 can form a guiding match with the mounting hole on the connecting arm 21 in the early stage of the installation of the middle frame 20, so as to facilitate the positioning and connection between the middle frame 20 and the back shell 10. After the connecting arm 21 is connected to the first rivet column 111, it is connected as a whole by hot riveting, which can ensure the connection stability while reducing the size of the first rivet column 111 passing through the connecting arm 21, thereby reducing the size of the first rivet column 111 along the thickness direction of the wearable display device, and facilitating the layout of other structures along the thickness direction of the wearable display device. In the disclosed embodiment, the connecting arm 21 is in the shape of a plate and can fit with the back cover 11, further improving the connection stability between the middle frame 20 and the back shell 10. When the middle frame 20 is connected to the rear shell 10, the connecting arm 21 and the first rivet column 111 are first guided and matched; then, they are clamped with the circumferential wall 12 through a plurality of slots 300 and a plurality of protrusions 121 in a one-to-one correspondence; finally, the connecting arm 21 and the first rivet column 111 are heat-riveted.

[0055] In an exemplary embodiment, please combine Figures 1 to 3 , Figure 7 , Fig. 9 , Figures 12 to 17 , the wearable display device also includes a wearing structure 70.

[0056] The rear cover 11 is also provided with a second reinforcement 15, which is accommodated in the installation cavity 200 and spaced from the circumferential wall 12. The middle frame 20 is partially clamped between the second reinforcement 15 and the circumferential wall 12 to ensure the support effect of the middle frame 20 on the circumferential wall 12, and the position stability between the middle frame 20 and the rear shell 10 can be further improved under the restriction of the second reinforcement 15 and the circumferential wall 12. The middle frame 20 is provided with a groove matching the second reinforcement 15, and the middle frame 20 can partially wrap the second reinforcement 15 through the setting of the groove, further improving the position stability between the middle frame 20 and the rear shell 10. The front cover 50 is fitted with the second reinforcement 15, which can provide support for the front cover 50 and ensure the structural stability of the front cover 50.

[0057] The rear cover 11 is provided with a through slot 900, and the front cover 50 is provided with a through hole 901. The through slot 900 sequentially passes through the rear cover 11 and the second reinforcement 15 and is connected to the through hole 901, so as to form an installation space for the wearing structure 70. In the disclosed embodiment, the wearing structure 70 includes a belt-like member 71, a ring-like mechanism 72, a rotating member 73 and a clamping member 74. One end of the belt-like member 71 is fixed to the other end after passing through the above-mentioned installation space, or is detachably connected to the other end to form a loop-like structure. The two ends of the ring-like mechanism 72 are rotationally connected to the belt-like member 71 and the rotating member 73, respectively. The rotating member 73 is rotationally connected to the clamping member 74. The clamping member 74 can be clamped on clothes to wear the wearable display device on the chest. The belt-like member 71, the ring-like mechanism 72, the rotating member 73 and the clamping member 74 cooperate with each other, which can increase the degree of freedom of the non-wearing structure part of the wearable display device, and facilitate the display side of the display unit 40 to face the front.

[0058] In an exemplary embodiment, please combine Figure 4 , Figure 7 , Fig. 9 and Figures 11 to 15 , at least one second button 33 is provided on the side of the circuit board 30 facing the back cover 11, and the second button 33 is electrically connected to the circuit board 30. The back cover 11 is provided with a second key hole 1000 corresponding to the second button 33 and connected to the mounting cavity 200, and the mounting cavity 200 accommodates a plurality of second rivet columns 112 surrounding the second key hole 1000 and connected to the back cover 11. The wearable display device also includes a second driving member 80, which is accommodated in the mounting cavity 200 and covers the second key hole 1000, and the second driving member 80 is thermally riveted to the second rivet column 112. The setting of the second rivet column 112 can form a guiding match with the mounting hole on the second driving member 80 in the early stage of the installation of the second driving member 80, so as to facilitate the positioning connection between the second driving member 80 and the back shell 10. After the second driving member 80 is connected to the second rivet column 112, it is connected as a whole by hot riveting, which ensures the stability of the connection while reducing the size of the second rivet column 112 passing through the second driving member 80, thereby reducing the size of the second rivet column 112 along the thickness direction of the wearable display device, and facilitating the layout of other structures along the thickness direction of the wearable display device. In the embodiment of the present disclosure, the second driving member 80 includes a body 81 and a plurality of elastic arms 82. The body 81 can cover the second key hole 1000. The elastic arm 82 is arranged on the circumferential outer side of the body 81 and is hot-riveted with the second rivet column 112. The second driving member 80 is configured to touch the second button 33 by moving relative to the circuit board 30, and the second button 33 can be conveniently controlled by pressing the second driving member 80 to send an electrical signal to the circuit board 30. In the embodiment of the present disclosure, the number of the second button 33 is one, and the electrical signal it sends can be configured to control the opening or closing of the wearable display device.

[0059] In an exemplary embodiment, please combine Figure 7 , Fig. 9 , Figures 11 to 15 The rear cover 11 is provided with a sound outlet hole 1100 and an annular wall 16. The annular wall 16 is received in the mounting cavity 200 and is provided on the rear cover 11 around the sound outlet hole 1100.

[0060] A sound unit 34 is provided on the side of the circuit board 30 facing the back cover 11. The sound unit 34 is electrically connected to the circuit board 30 and is embedded in the space surrounded by the annular wall 16. In this way, the sound unit 34 can be fixed by the setting of the annular wall 16 to ensure that its position is stable, and the sound emitted can be stably transmitted to the outside through the sound outlet 1100. In the embodiment of the present disclosure, the sound unit 34 can be a buzzer. The buzzer can cooperate with the aforementioned timing module. When the timing reaches the preset time, the buzzer can emit a sound to prompt the user.

[0061] In an exemplary embodiment, please combine Figure 2 , Fig. 9 , Figures 11 to 17 , the circumferential wall 12 is provided with a sound receiving hole 1200, and the middle frame 20 is provided with a mounting groove 1201, and the mounting groove 1201 is connected between the sound receiving hole 1200 and the mounting cavity 200. A sound receiving unit 35 is provided on the circumferential outer side of the circuit board 30, and the sound receiving unit 35 is electrically connected to the circuit board 30 and embedded in the mounting groove 1201. In this way, the position of the sound receiving unit 35 can be ensured to be stable through the setting of the mounting groove 1201, and the sound receiving unit 35 receives external sound through the sound receiving hole 1200 and records. The sound receiving unit 35 can store the recording or the wearable display device can also include a storage unit, which is configured to store the sound collected by the sound receiving unit 35. In the embodiment of the present disclosure, the sound receiving unit 35 is a microphone. The storage unit can transmit information with other hardware devices through the communication module and the hardware interface 32.

[0062] In an exemplary embodiment, Fig. 9 As shown, the middle frame 20 is further provided with an abutting portion 23 , which is received in the mounting groove 1201 and abuts the sound receiving unit 35 against the circumferential wall 12 , so as to further improve the position stability of the sound receiving unit 35 and prevent it from shaking relative to the middle frame 20 .

[0063] In an exemplary embodiment, please combine Figure 8 , Fig.11 and Fig.16The wearable display device further includes a power supply unit 36, which is electrically connected to the circuit board 30, and is accommodated in the installation cavity 200. The power supply unit 36 ​​is connected to at least one of the rear shell 10 and the middle frame 20, and supports the display unit 40. In this way, the power supply unit 36 ​​can support the display unit 40 together with the circuit board 30, avoiding the power supply unit 36 ​​and the circuit board 30 from overlapping in the thickness direction of the wearable display device, thereby increasing the thickness of the wearable display device. The power supply unit 36 ​​can provide support for the suspended part of the display unit 40 that is not attached to the circuit board 30, and ensure the position stability of the display unit 40. In the embodiment of the present disclosure, the power supply unit 36 ​​is a rechargeable battery, and an external charging device can charge the power supply unit 36 ​​through the hardware interface 32, so that the power supply unit 36 ​​can supply power to the circuit board 30 and the display unit 40, the first button 31, the second button 33, the sound unit 34, the sound receiving unit 35 and other electrical components electrically connected to the circuit board 30. The wearable display device in the embodiment of the present disclosure has a simple structure, is relatively light and thin, has a relatively large display area, does not require an external power supply when in use, is convenient for wearing, can display more information and is easy to update the displayed information, and can also provide functions such as timing and recording.

[0064] In the disclosed embodiment, the circuit board 30 and the back cover 11 can be connected by self-tapping screws. The circuit board 30 and the electrical components such as the first button 31, the second button 33, the sound unit 34, the sound receiving unit 35, and the power supply unit 36 ​​connected to the circuit board 30 are assembled and placed in the installation cavity 200, and then the circuit board 30 and the fixing column located on the back cover 11 are tightened and fixed by two self-tapping screws through the screw fixing holes on the circuit board 30 to achieve the fixed positioning of the circuit board 30 and the back shell 10. At this time, the first button 31 and the first driving member 60, the second button 33 and the second driving member 80 are all one-to-one corresponding, and the sound receiving unit 35 is just fixed in the installation groove 1201, and the external sound is received through the sound receiving hole 1200 for recording. It can be understood that in other embodiments, the circuit board 30 and the back cover 11 and the circuit board 30 and the circumferential wall 12 can also be connected by snapping, plugging or welding.

[0065] In an exemplary embodiment, please combine Figure 8 , Fig. 9 and Figures 12 to 15The wearable display device also includes a coil 37, which is communicatively connected to the circuit board 30. The back cover 11 is also provided with a fixing groove 1300, which is configured to fix the coil 37, thereby improving the position stability of the coil 37. Information can be transmitted between the coil 37 and the circuit board 30 via a wireless connection or a wired connection. In the disclosed embodiment, the coil 37 is an IC card coil, which is pasted and fixed to the fixing groove 1300 after the release paper of the IC card coil product is torn off. The provision of the fixing groove 1300 increases the connection area between the coil 37 and the back cover 11 on the one hand, and on the other hand, it can increase the size of the installation cavity 200 along the thickness direction of the wearable display device, thereby reducing the influence of the installation of the coil 37 on the thickness of the wearable display device.

[0066] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "'mouth'-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred structure has a specific orientation, is constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0067] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0068] Although the embodiments disclosed in the present disclosure are as above, the contents described are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. It should be noted that the above embodiments or embodiments are merely exemplary and not restrictive. Therefore, the present disclosure is not limited to the contents specifically shown and described herein. Various modifications, substitutions or omissions may be made to the forms and details of the implementation without departing from the scope of the present disclosure.

Claims

1. A wearable display device, characterized in that: include: A rear shell, comprising a rear cover and a circumferential wall, wherein the circumferential wall surrounds the rear cover and is connected to the circumferential outer side of the rear cover, the rear cover and the circumferential wall can enclose a receiving cavity, and a side of the circumferential wall facing the receiving cavity is provided with a plurality of protrusions arranged at intervals; A middle frame is received in the receiving cavity and is attached to the back cover. The middle frame is an annular structure and can be enclosed to form a mounting cavity. The middle frame has a plurality of slots. The middle frame and the circumferential wall are connected to the plurality of protrusions in a one-to-one correspondence through the plurality of slots. A circuit board is housed in the mounting cavity and fixedly connected to the rear housing; A display unit, electrically connected to the circuit board, the display unit being received in the mounting cavity and being in contact with a side of the circuit board away from the rear cover; and The front cover is received in the receiving cavity, the front cover is in contact with a side of the middle frame away from the rear cover, and is located on the display side of the display unit.

2. The wearable display device according to claim 1, characterized in that The protrusion has a guide surface on a side facing away from the rear cover, and the guide surface is inclined toward the rear cover from a side close to the circumferential wall to a side away from the circumferential wall.

3. The wearable display device according to claim 1, characterized in that At least one first button is arranged on the circumferential outer side of the circuit board, and the first button is electrically connected to the circuit board; The circumferential wall is provided with a first key hole corresponding to the first key, and the middle frame is provided with a through hole communicating between the mounting cavity and the first key hole; The wearable display device also includes a first driving member, which is installed in the first key hole and the through hole, and is configured to touch the first key by moving relative to the circuit board.

4. The wearable display device according to claim 3, characterized in that The first driving member includes a pressing portion and a limiting portion. The pressing portion is respectively guided and matched with the circumferential wall and the middle frame through the first key hole and the through hole, and is at least partially exposed to the circumferential wall. The limiting portion is connected to the pressing portion and can be limited and matched with a side of the middle frame facing the installation cavity.

5. The wearable display device according to claim 4, characterized in that: A receiving groove is provided on one side of the middle frame facing the installation cavity, and the limiting portion is received in the receiving groove; The first driving member further includes a positioning portion, which is disposed on at least one of the pressing portion and the limiting portion, and the middle frame is provided with a positioning groove for guiding and positioning the positioning portion.

6. The wearable display device according to claim 1, characterized in that: At least one hardware interface is also provided on the circumferential outer side of the circuit board, and the hardware interface is electrically connected to the circuit board; The rear housing further includes a first reinforcement member, the first reinforcement member being disposed on at least one of the rear cover and the circumferential wall, the first reinforcement member being received in the mounting cavity and having a connecting hole; The circumferential wall is provided with a plug-in hole, and the hardware interface is installed in the connection hole and exposed outside the plug-in hole; The middle frame is provided with a notch, and the notch is configured to avoid the first reinforcement member.

7. The wearable display device according to claim 6, characterized in that: The middle frame is also provided with a connecting arm, and the two ends of the middle frame forming the notch are connected, and the ends are in contact with the first reinforcement member; The installation cavity accommodates at least one first rivet column connected to the back cover, and the connecting arm is thermally riveted to the first rivet column.

8. The wearable display device according to claim 6, characterized in that: The wearable display device also includes a wearing structure; The rear cover is further provided with a second reinforcement member, which is received in the installation cavity and spaced apart from the circumferential wall, the middle frame portion is clamped between the second reinforcement member and the circumferential wall, and the front cover is in contact with the second reinforcement member; The rear cover is provided with a through slot, and the front cover is provided with a through hole. The through slot sequentially penetrates the rear cover and the second reinforcement and is connected with the through hole, so as to form an installation space for the wearing structure.

9. The wearable display device according to claim 1, characterized in that: At least one second button is disposed on a side of the circuit board facing the back cover, and the second button is electrically connected to the circuit board; The back cover is provided with a second key hole corresponding to the second key and communicating with the mounting cavity, and the mounting cavity accommodates a plurality of second rivet studs surrounding the second key hole and connected to the back cover; The wearable display device also includes a second driving member, which is accommodated in the mounting cavity and covers the second key hole. The second driving member is thermally riveted to the second rivet column and is configured to touch the second button by moving relative to the circuit board.

10. The wearable display device according to claim 1, characterized in that: The rear cover is provided with a sound outlet hole and an annular wall, the annular wall is received in the mounting cavity and is arranged on the rear cover around the sound outlet hole; A sound generating unit is arranged on one side of the circuit board facing the rear cover. The sound generating unit is electrically connected to the circuit board and is embedded in the space surrounded by the annular wall.

11. The wearable display device according to claim 1, characterized in that: The circumferential wall is provided with a sound receiving hole, the middle frame is provided with a mounting groove, and the mounting groove is communicated between the sound receiving hole and the mounting cavity; A sound receiving unit is arranged on the circumferential outer side of the circuit board. The sound receiving unit is electrically connected to the circuit board and embedded in the installation groove.

12. The wearable display device according to claim 11, characterized in that: The middle frame is further provided with an abutment portion, which is received in the mounting groove and abuts the sound receiving unit against the circumferential wall.

13. The wearable display device according to claim 1, characterized in that: The wearable display device also includes a power supply unit, which is electrically connected to the circuit board, housed in the installation cavity, connected to at least one of the rear shell and the middle frame, and supports the display unit.

14. The wearable display device according to claim 1, characterized in that: The wearable display device also includes a coil, which is communicatively connected to the circuit board, and the back cover is also provided with a fixing groove, which is configured to fix the coil.

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