TWI858525B - Head-mounted device - Google Patents

Abstract

A head-mounted device includes a band, a dock seat, a ratchet, and a battery module. The band passes through the dock seat. The dock seat has at least one first magnetic member. The ratchet is disposed in the dock seat and is meshed with the band, so as to adjust tightness of the band. The battery module is detachably attached to the dock seat. The battery module includes a battery, a locking button module, and at least one second magnetic member. The locking button module is rotatable and passes through the battery body, and is capable of being released from the ratchet or driving the ratchet. The at least one first magnetic member and the at least one second magnetic member attract each other by magnetic force.

Description

Head mounted device

The present invention relates to a head mounted device, and in particular to a head mounted device having a battery module with a quick-release structure.

If a head-mounted device, such as a head-mounted display device (HMD), needs to be charged, it is usually connected to the head-mounted device through an external battery with a charging cable. This structure cannot be integrated with the appearance of the head-mounted device, resulting in a large size of the charging battery. The space utilization is poor.

In addition, the charging cable connection method is complicated and time-consuming when plugging and removing the battery module. Users cannot quickly replace it.

Therefore, how to improve the overall integration of the head mounted device and the rechargeable battery through structural design improvements, and how to improve the convenience of replacing the rechargeable battery to overcome the above-mentioned defects has become a problem that this technical field wants to solve.

The technical problem to be solved by the present invention is to provide a head mounted device to improve the above defects in view of the shortcomings of the prior art.

In order to solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a head-mounted device, which includes a strap body, a supporting seat, a ratchet and a battery module. The strap body passes through the supporting seat, and the supporting seat has at least one first magnetic component. The ratchet is arranged in the supporting seat and is engaged with the strap body to adjust the tightness of the strap body. The battery module can be detachably assembled on the supporting seat, and the battery module has a battery body, a buckle button group and at least one second magnetic component. The buckle button group can be rotatably passed through the battery body, and can be detachably engaged with the ratchet and drive the ratchet; the at least one first magnetic component and the at least one second magnetic component can be attracted to each other through magnetic force.

One of the beneficial effects of the present invention is that the head mounted device provided by the present invention can conveniently remove the battery module from the head mounted device by detachably engaging the locking button assembly with the ratchet. In addition, by the at least one first magnetic attraction member and the at least one second magnetic attraction member adsorbing each other through magnetic force, the battery module can automatically align with the supporting seat of the head mounted device. Thus, the user can quickly and conveniently replace the battery module of the head mounted device.

To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only used for reference and description and are not used to limit the present invention.

[First embodiment]

Referring to FIG. 1 to FIG. 3A , the first embodiment of the present invention provides a head-mounted device, which can be applied to a head-mounted virtual reality headset, for example. The head-mounted device includes a strap 10, a support seat 20, a ratchet 30, a battery module 40, and a front module 50. The front module 50 can be, for example, a virtual reality display, but the present invention is not limited thereto.

As shown in FIG. 2 and FIG. 3A , the belt body 10 can be divided into a first belt 10a and a second belt 10b, which can be moved closer or farther away from each other to adjust the tightness of the belt body 10. The free ends of the first belt 10a and the second belt 10b each form a parallel tooth portion (not numbered). Referring to FIG. 4 , the support seat 20 is wrapped around the free end of the belt body 10. In other words, the belt body 10 passes through the support seat 20.

The ratchet 30 is disposed in the support seat 20 and is engaged with the belt body 10 to adjust the tightness of the belt body 10. The function of the ratchet 30 is to keep the linear displacement of the first strap 10a and the second strap 10b in a single direction and prevent the transmission mechanism from reversing. The detailed structure will be described in the following examples.

As shown in FIG4 , the battery module 40 can be detachably assembled on the support seat 20. The battery module 40 has a battery body 41, a buckle button assembly 40B, and a pair of second magnetic attracting members M2 (see FIG3A ). The buckle button assembly 40B can be rotatably penetrated in the battery body 41, and can be detachably buckled on the ratchet 30 and drive the ratchet 30, thereby adjusting the tightness of the belt body 10. The battery body 41 of this embodiment can have more than one battery core (not shown).

As shown in FIG. 2 and FIG. 4 , the support seat 20 has a first connector 21 and a pair of first magnetic members M1. In this embodiment, the number of the first magnetic members M1 is two, which are separately disposed on both sides of the ratchet 30; the number of the second magnetic members M2 is two, which are located on the inner side of the battery body 41 and are separately disposed on both sides of the buckle button assembly 40B. However, the present invention is not limited thereto, and the number of the first magnetic member M1 and the second magnetic member M2 can be at least one.

As shown in FIG. 3A , the battery module 40 has a second connector 412 disposed on the inner side of the battery body 41. When the battery module 40 is assembled to the support seat 20, the second connector 412 can be connected to the first connector 21, thereby transmitting power to the front module 50. For example, one of the first connector 21 or the second connector 412 can be a pogo pin connector, and the other can be a metal pad connector. In this embodiment, the magnetic element can be integrated into the connector. Thereby, the first magnetic element M1 and the second magnetic element M2 are attracted to each other through magnetic force, and the present embodiment can provide a positioning function between the battery module 40 and the support seat 20. After the battery module 40 and the support base 20 are aligned by suction, the first connector 21 is automatically aligned with the second connector 412 at the same time, and the user does not need to align them by himself.

Please refer to FIG. 3B , the lock button assembly 40B has a button unit 42 and a plurality of lock arms 43. The plurality of lock arms 43 are movably assembled to the button unit 42. Each lock arm 43 has a pressing portion 433 and a buckle portion 434 at both ends. The pressing portion 433 is located on the outer side of the battery body 41, and the buckle portion 434 is located on the inner side of the battery body 41. The various components of the lock button assembly 40B of this embodiment are described in detail below. Please refer to FIG. 3A , FIG. 3B , FIG. 4 , FIG. 6 and FIG. 7 , the button unit 42 has a button body 421 and a lock core rod body 423. The button body 421 is in the shape of a disk and is located on the outer surface of the battery body 41 (as shown in FIG. 4 ). The lock core rod 423 is connected to one side of the button body 421 and passes through the battery body 41. As shown in FIG. 3A , the button unit 42 also has a fixing member 425, which is located on the inner side of the battery body 41 and connected to the end of the lock core rod 423 to prevent the lock button assembly 40B from being separated from the battery body 41. As shown in FIG. 3B , the lock core rod 423 is in the shape of a hollow triangular cylinder. This embodiment includes three lock arms 43, which are respectively arranged on three surfaces of the lock core rod 423. Specifically, the lock button assembly 40B forms three receiving grooves 4210, which are concave along the periphery and bottom surface of the button body 421 and extend through the three surfaces of the lock core rod body 423. The three lock arms 43 are respectively received in the three receiving grooves 4210. The bottom surface of the button body 421 also forms three axial grooves 4211. The user presses the three lock arms 43 of the lock button assembly 40B at the same time to avoid the situation of accidental disassembly. However, the present invention is not limited to this, and the shape of the lock core rod body 423 is not limited to a triangular prism, but can also be other polygons.

As shown in FIG. 3B and FIG. 6 , specifically, each locking arm 43 is L-shaped, and has a short arm 431 and a long arm 432. The short arm 431 is accommodated in the button body 421, and the short arm 431 rotates relative to the shaft 430. The shaft 430 is pivoted in the shaft groove 4211. The pressing portion 433 is formed at the free end of the short arm 431, the long arm 432 is accommodated in the lock core rod body 423, and the buckle portion 434 is formed at the free end of the long arm 432. The pressing portion 433 of each locking arm 43 is exposed around the button body 421, which can be convenient for the user to press.

In addition, the lock button assembly 40B also has three elastic elements 45. In this embodiment, the elastic elements 45 are compression springs, but the present invention is not limited thereto. The elastic elements 45 are accommodated in the button body 421. One end of the elastic element 45 abuts against the pressing portion 433 of the lock arm 43 and pushes the pressing portion 433 outward. The elastic element 45 makes the buckle portion 434 close to the lock core rod body 423 in a normal state, as shown in FIG5 .

Please refer to FIG. 5 and FIG. 7 , FIG. 5 is a three-dimensional assembly diagram of the lock button assembly and the ratchet of the first embodiment of the present invention, and FIG. 7 is a three-dimensional diagram of the lock button assembly and the ratchet separated from the first embodiment of the present invention. The ratchet 30 has an axial outer rod 313. The axial outer rod 313 can be inserted into the lock core rod body 423. The engaging hole 3130 is formed on the surface of the axial outer rod 313. The lock arm 43 can be engaged with the axial outer rod 313 of the ratchet 30. When the pressing portion 433 is pressed, the locking portion 434 moves outward and disengages from the locking hole 3130.

As shown in FIG. 6 and with reference to FIG. 4 , when the battery module 40 is assembled to the supporting seat 20 , the buckle portion 434 of the buckle arm 43 is correspondingly engaged with the engaging hole 3130 of the ratchet 30 .

When the user wants to remove the battery module 40 from the head mounted device, the user presses the pressing portion 433 of the lock arm 43, and the buckle portion 434 leaves the engaging hole 3130, and the lock button assembly 40B no longer buckles the ratchet 30, as shown in FIG7. The battery module 40 can be separated from the support seat 20 of the head mounted device, as shown in FIG4. In this way, the battery module 40 of the head mounted device of the present invention has a quick release function.

Please refer to FIG. 7 and FIG. 8 , and the ratchet 30 of the present embodiment is described in detail below, which includes a driving wheel rod 31 and a driven wheel rod 32. The ratchet 30 of the present embodiment uses a Geneva Drive mechanism, which has the characteristics of high operational reliability and is integrated into the rotational and retractable actions of the ratchet 30 and the strap. The driving wheel rod 31 has a Geneva drive 311 and a driving gear 312. The driving gear 312 is connected to one side of the Geneva drive 311. An axial outer rod 313 is connected to the other side of the Geneva drive 311. The Geneva drive 311 has a plurality of radial grooves 3110 and a plurality of concave arc portions 3112, and the plurality of concave arc portions 3112 and the plurality of radial grooves 3110 are arranged at intervals.

The driven wheel lever 32 has a shift plate 321, a driven gear 322, and an arc-shaped locking protrusion 323. The driven gear 322 is connected to one side of the shift plate 321, and the arc-shaped locking protrusion 323 is connected to the other side of the shift plate 321. The shift plate 321 protrudes a round pin 324. The arc-shaped locking protrusion 323 is in the shape of a sector with a blunt angle exceeding 180 degrees.

8 , the driving gear 312 is engaged with the driven gear 322, and the driven gear 322 is engaged with the toothed parts of the first and second straps 10a and 10b. The round pin 324 can slide on one of the radial grooves 3110 of the groove wheel 311, and the arc-shaped locking protrusion 323 can abut one of the concave arcs 3112.

Please refer to Figures 9 to 11, which show schematic diagrams of the ratchet 30 adjusting the first strap 10a and the second strap 10b. As shown in Figures 9 and 10, when the round pin 324 of the driven wheel rod 32 is located in the radial groove 3110 of the groove wheel 311, the driving gear 312 rotates in the counterclockwise direction, which can drive the driven gear 322 to rotate in the clockwise direction. As shown in Figure 11, when the round pin 324 of the driven wheel rod 32 leaves the radial groove 3110 of the groove wheel 311, the arc surface of the arc-shaped locking protrusion 323 corresponds to one of the concave arc portions 3112, thereby limiting the rotation of the driving gear 312. At this time, the driven gear 322 can be driven by pulling the first strap 10a and the second strap 10b. The round pin 324 can then enter the radial groove 3110 of the groove wheel 311.

[Second embodiment]

As shown in FIG. 12 and FIG. 13 , a second embodiment of the present invention is shown in the buckle button assembly and ratchet. The driving gear 36 of the ratchet 30D forms a hollow plug-in portion 362 in an axial square shape, and a plurality of engaging holes 3620 are formed on the inner side surface of the plug-in portion 362. The buckle button assembly 40D includes a button unit 46 and four buckle arms 47. The locking core rod of the button unit 46 is in a square column shape and can be inserted into the plug-in portion 362. Each buckle arm 47 has a buckle portion 472 to engage with the engaging hole 3620. As shown in FIG. 13 , when the pressing portion 471 of the lock arm 47 is pressed, the lock arm 47 as a whole retracts inwardly, and the buckle portion 472 retracts inwardly into the lock core rod body 423, so that the lock button assembly 40D can leave the ratchet 30D.

[Beneficial Effects of Embodiments]

One of the beneficial effects of the present invention is that the head mounted device provided by the present invention can conveniently remove the battery module from the head mounted device by detachably engaging the locking button assembly with the ratchet. In addition, the battery module can automatically align with the supporting seat of the head mounted device by magnetically adsorbing the first magnetic attraction member and the second magnetic attraction member. Thus, the user can conveniently and quickly remove the battery module of the head mounted device.

The buckle button assembly is integrated with the battery module. The battery module can be engaged or separated with the ratchet, providing a quick release function. The user only needs to press the buckle button assembly to remove the battery module, making disassembly and assembly easy.

The contents disclosed above are only preferred feasible embodiments of the present invention and are not intended to limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made using the contents of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.

10: belt body 10a: first strap 10b: second strap 20: support seat 21: first connector 30, 30D: ratchet 31: driving wheel lever 311: groove wheel 3110: radial groove 3112: concave arc 312: driving gear 313: axle outer rod 3130: engagement hole 32: driven wheel lever 321: shift plate 322: driven gear 323: arc-shaped locking protrusion 324: round pin 36: driving gear 362: plug-in part 3620: engagement hole 40: battery module 41: battery body 412: Second connector 40B, 40D: Lock button assembly 42, 46: Button unit 421: Button body 4210: Accommodation groove 4211: Shaft groove 423: Lock core rod 425: Fixing member 43, 47: Lock arm 430: Rotating shaft 431: Short arm 432: Long arm 433: Pressing part 434, 472: Buckle part 471: Pressing part 45: Elastic element 50: Front module M1: First magnetic part M2: Second magnetic part

FIG. 1 is a three-dimensional assembly diagram of the head-mounted device of the present invention.

FIG. 2 is a three-dimensional exploded view of the head mounted device of the present invention.

FIG. 3A is another exploded perspective view of the head mounted device of the present invention.

FIG. 3B is an enlarged view of portion IIIB in FIG. 3A .

FIG. 4 is a three-dimensional diagram of the battery module of the present invention after being disassembled from the head mounted device.

FIG. 5 is a three-dimensional assembly diagram of the lock button assembly and the ratchet according to the first embodiment of the present invention.

FIG6 is a cross-sectional view of the present invention along line VI-VI of FIG5 .

FIG. 7 is a three-dimensional view of the lock button assembly and the ratchet wheel separated according to the first embodiment of the present invention.

FIG. 8 is an enlarged view of portion VIII in FIG. 2 , showing a schematic diagram of the operation of the ratchet and the belt body.

9 to 11 are schematic diagrams of the ratchet-driven belt body of the present invention in different states.

FIG. 12 is a perspective view of the lock button assembly and the ratchet wheel of the second embodiment of the present invention.

FIG. 13 is a three-dimensional view of the lock button assembly and the ratchet wheel after being pressed according to the second embodiment of the present invention.

10: Body

10a: First belt

10b: Second strap

20: Support seat

21: First connector

30: Ratchet

313: Axis outer rod

3130: snap-fit hole

40:Battery module

41: Battery body

40B: Buckle button set

42: Button unit

43:Latch arm

50: Front module

M1: The first magnetic attraction part

Claims (9)

A head-mounted device comprises: a strap; a support seat having at least one first magnetic attraction member, the strap passing through the support seat; a ratchet wheel disposed in the support seat and engaged with the strap to adjust the tightness of the strap; and a battery module detachably assembled on the support seat, the battery module having a battery body, a buckle button group and at least one second magnetic attraction member, the buckle button group being rotatably disposed on the battery body and detachably buckled on the ratchet wheel. The at least one first magnetic attraction member and the at least one second magnetic attraction member can be attracted to each other by magnetic force; wherein the ratchet has at least one engaging hole, the buckle button assembly has at least one buckle arm, and the two ends of the at least one buckle arm respectively have a pressing portion and a buckle portion, the pressing portion is located on the outer side of the battery body, and the buckle portion is located on the inner side of the battery body. When the battery module is assembled on the supporting seat, the buckle portion of the at least one buckle arm is engaged with the at least one engaging hole. A head mounted device as described in claim 1, wherein the support seat has a first connector, and the battery module also has a second connector, wherein the second connector is disposed on the inner side of the battery body, and the second connector can be connected to the first connector to transmit power. The head mounted device as described in claim 1, wherein the at least one first magnetic attraction member is two in number and is separately disposed on both sides of the ratchet; the at least one second magnetic attraction member is two in number and is located on the inner side of the battery body and is separately disposed on both sides of the buckle button assembly. The head mounted device as described in claim 1, wherein the lock button assembly further comprises a button body and a lock core rod body, the button body is located on the outer surface of the battery body, the lock core rod body is connected to one side of the button body and passes through the battery body, the pressing portion of the at least one lock arm is disposed around and exposed to the button body, the buckle portion is movably disposed around and exposed to the lock core rod body; wherein the ratchet has an axial outer rod, the axial outer rod can be plugged into the lock core rod body, and the at least one engaging hole is formed on the surface of the axial outer rod. As described in claim 4, the at least one locking arm is L-shaped, having a short arm and a long arm, the short arm is accommodated in the button body, the short arm can rotate relative to a shaft, the pressing portion is formed at the free end of the short arm, the long arm is accommodated in the lock core rod body, and the buckle portion is formed at the free end of the long arm. As described in claim 5, the head mounted device, wherein the lock button assembly also has at least one elastic element, the at least one elastic element is accommodated in the button body, and the at least one elastic element abuts against the pressing portion of the at least one lock arm. A head mounted device as described in claim 4, wherein the ratchet comprises: a driving wheel lever having a groove wheel and a driving gear, the driving gear being connected to one side of the groove wheel, the groove wheel having a plurality of radial grooves and a plurality of concave arc portions, the plurality of concave arc portions being spaced apart from the plurality of radial grooves; and a driven wheel lever having a shift plate, a A driven gear and an arc-shaped locking protrusion, the driven gear is connected to one side of the shift plate, the arc-shaped locking protrusion is connected to the other side of the shift plate, suitable for limiting the rotation of one of the concave arc portions, the shift plate protrudes a round pin, suitable for sliding on one of the radial grooves of the groove wheel; wherein the driving gear is engaged with the driven gear. A head mounted device as described in claim 7, wherein the outer shaft of the axle is connected to the other side of the groove wheel. The head mounted device as described in claim 4, wherein the ratchet forms a hollow plug-in portion, the at least one engaging hole is formed on the inner side of the plug-in portion, wherein the lock core rod of the lock button assembly can be inserted into the plug-in portion, and the buckle portion of the at least one lock arm can be engaged with the at least one engaging hole.

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