Pressure regulating structure, virtual reality device and pressure regulating method

Abstract

The application provides a pressure adjusting structure, a virtual reality device and a pressure adjusting method. The pressure adjusting structure comprises a head ring and a top band connected with the head ring. A main control board is arranged in the head ring. The top band comprises a body and a pressure sensor, a flexible circuit board, a rotary motor and an adjusting band arranged in the body. The flexible circuit board is electrically connected with the main control board. The rotary motor and the pressure sensor are respectively mounted on the flexible circuit board. The adjusting band is mounted on the rotating shaft of the rotary motor and the two ends of the adjusting band respectively extend to the two sides of the top band. The body is a flexible member, so that the tightness of the adjusting band is adjusted by the rotary motor to drive the body to deform. The pressure adjusting structure has the advantages that the pressure on the head can be automatically adjusted according to the detection value of the pressure sensor, the force on each support point of the human head is uniform, and the wearing comfort is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearable electronic products, and particularly relates to a pressure adjusting structure, a virtual reality device and a pressure adjusting method. BACKGROUND

[0002] The function of a head-mounted virtual reality device (VR) product is becoming more and more powerful, and it has been applied more and more widely in our life. In the prior art, the virtual reality device mainly takes the top of the head, the ear or the nose as the main force point. Since the virtual reality device has a certain weight, the human head is prone to discomfort when the force at each force point is uneven, the wearing comfort is reduced, and the user experience is affected.

[0003] In view of this, it is necessary to provide a new pressure adjusting structure, a virtual reality device and a pressure adjusting method to solve or at least alleviate the above technical defects. SUMMARY

[0004] The main purpose of the present application is to provide a pressure adjusting structure, a virtual reality device and a pressure adjusting method, which aims to solve the technical problem of low wearing comfort of the virtual reality device in the prior art.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a pressure adjusting structure is provided, comprising a head ring and a top strap connected with the head ring, a main control board is arranged in the head ring, the top strap comprises a body and a pressure sensor, a flexible circuit board, a rotary motor and an adjusting strap arranged in the body, the flexible circuit board is electrically connected with the main control board, the rotary motor and the pressure sensor are respectively installed on the flexible circuit board, the adjusting strap is installed on the rotating shaft of the rotary motor and the two ends of the adjusting strap respectively extend to the two sides of the top strap, the body is a flexible member, so as to drive the body to deform by adjusting the tightness of the adjusting strap through the rotary motor.

[0006] In an embodiment, the body further comprises a mounting seat and a sealing cover, the mounting seat and the sealing cover cooperatively form a containing cavity containing the rotary motor, the mounting seat forms a clamping groove and a shaft hole, the rotary motor is installed in the clamping groove and the rotating shaft is rotatably installed in the shaft hole, and the sealing cover is formed with limiting holes on both sides for the adjusting strap to pass through.

[0007] In an embodiment, the rotating shaft is provided with a mounting groove, and the adjusting strap is installed in the mounting groove.

[0008] In an embodiment, the mounting groove is an S-shaped groove.

[0009] In an embodiment, the connecting position of the installation groove and the adjusting band is coated with adhesive.

[0010] In an embodiment, the pressure adjusting structure further comprises a positioning pin, the top band is formed with a positioning hole on both sides, the head ring is formed with an installation hole, and the positioning pin passes through the positioning hole and the installation hole to connect the top band and the head ring.

[0011] In an embodiment, the flexible circuit board comprises a front surface and a back surface, the body comprises a shell and a sealing band, the back surface is arranged towards the shell, the pressure sensor is installed on the back surface to detect the pressure borne by the top of the human body, a soft rubber layer is covered on the pressure sensor, and the rotary motor is arranged on the front surface.

[0012] In an embodiment, the flexible circuit board is provided with a wire hole for the adjusting band to extend from the back surface to the front surface.

[0013] In an embodiment, the flexible circuit board always has a surplus bending amount during the deformation of the body.

[0014] According to another aspect of the present application, the present application further provides a virtual reality device, which comprises a display structure and the above-mentioned pressure adjusting structure, and the display structure is installed on the head ring.

[0015] According to still another aspect of the present application, the present application further provides a pressure adjusting method, which comprises the following steps:

[0016] controlling the pressure sensor to detect the pressure value of the top of the human body;

[0017] controlling the main control board to compare the pressure value with a preset pressure value;

[0018] sending a control signal to the rotary motor according to the comparison result, and the rotary motor controls the rotation of the rotating shaft to adjust the tightness of the adjusting band according to the control signal, so as to drive the top band to deform through the adjusting band.

[0019] In an embodiment, the step of sending a control signal to the rotary motor according to the comparison result, and the rotary motor controls the rotation of the rotating shaft to adjust the tightness of the adjusting band according to the control signal, so as to drive the top band to deform through the adjusting band comprises:

[0020] if the pressure value is less than the preset pressure value, the main control board sends a forward rotation signal to the rotary motor, and the forward rotation of the rotary motor makes the adjusting band tighten, so as to drive the top band to deform to increase the pressure on the top of the human body through the adjusting band.

[0021] In an embodiment, the step of sending a control signal to the rotary motor according to the comparison result, and the rotary motor controlling the rotation of the rotating shaft to adjust the tightness of the adjusting belt to drive the top belt to deform comprises:

[0022] If the pressure value is greater than the preset pressure value, the main control board sends a reverse rotation signal to the rotary motor, and the rotary motor reversely rotates to loosen the adjusting belt to drive the top belt to deform to increase the pressure on the top of the human head through the adjusting belt.

[0023] In the above scheme, the pressure adjusting structure comprises a head ring and a top belt connected with the head ring, the head ring is provided with a main control board, the top belt comprises a body and a pressure sensor, a flexible circuit board, a rotary motor and an adjusting belt arranged in the body, the flexible circuit board is electrically connected with the main control board, the rotary motor and the pressure sensor are respectively installed on the flexible circuit board, the adjusting belt is installed on the rotating shaft of the rotary motor and the two ends of the adjusting belt respectively extend to the two sides of the top belt, and the body is a flexible piece to drive the body to deform through the rotary motor adjusting the tightness of the adjusting belt. The pressure on the top of the head is detected by the pressure sensor, and the detected pressure value is sent to the main control board through the flexible circuit board, the main control board compares the detected pressure value with the preset pressure value, and sends a control signal to the rotary motor according to the comparison result, and the rotary motor controls the tightness of the adjusting belt through the rotating direction and rotating angle of the rotating shaft. Since the body is made of a flexible piece, the body will deform during the adjustment of the adjusting belt, and the body will change the pressure on the top of the head after deforming, thereby adjusting the pressure on the top of the head until the pressure value detected by the pressure sensor is within the preset pressure value range. The application has the advantages of automatically adjusting the pressure on the top of the head according to the detection value of the pressure sensor, ensuring that the forces on each support point of the human head are uniform, and improving the wearing comfort. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in these drawings without creative labor for those skilled in the art.

[0025] Figure 1 It is a three-dimensional structure diagram of the pressure adjusting structure of the embodiment of the present application.

[0026] Figure 2 It is an explosion structure diagram of the pressure adjusting structure of the embodiment of the present application.

[0027] Figure 3Structure schematic diagram of front surface of flexible circuit board of pressure regulating structure of embodiment of the present application;

[0028] Figure 4 Structure schematic diagram of back surface of flexible circuit board of pressure regulating structure of embodiment of the present application;

[0029] Figure 5 Sectional structure schematic diagram of rotating shaft and mounting seat of pressure regulating structure of embodiment of the present application;

[0030] Figure 6 Structure schematic diagram of flexible circuit board, mounting seat and adjusting belt of pressure regulating structure of embodiment of the present application;

[0031] Figure 7 Sectional structure schematic diagram of Figure 6 ;

[0032] Figure 8 Structure schematic diagram of one view of mounting seat of pressure regulating structure of embodiment of the present application;

[0033] Figure 9 Structure schematic diagram of another view of mounting seat of pressure regulating structure of embodiment of the present application;

[0034] Figure 10 Structure schematic diagram of flexible circuit board, mounting seat, sealing cover and adjusting belt of pressure regulating structure of embodiment of the present application;

[0035] Figure 11 Sectional structure schematic diagram of Figure 10 ;

[0036] Figure 12 Partial sectional structure schematic diagram of top belt of pressure regulating structure of embodiment of the present application;

[0037] Figure 13 Internal structure schematic diagram of top belt of pressure regulating structure of embodiment of the present application;

[0038] Figure 14 Another explosion structure schematic diagram of pressure regulating structure of embodiment of the present application;

[0039] Figure 15 Internal structure schematic diagram of pressure regulating structure of embodiment of the present application;

[0040] Figure 16 Schematic diagram of pressure regulating structure of embodiment of the present application worn on top of human body;

[0041] Figure 17 Sectional structure schematic diagram of Figure 16 ;

[0042] Figure 18Structure diagram of the pressure adjusting structure adjusting the tightening of the belt for the embodiment of the present application;

[0043] Figure 19 Structure diagram of the pressure adjusting structure adjusting the loosening of the belt for the embodiment of the present application;

[0044] Figure 20 Flowchart of the first embodiment of the pressure adjusting method for the embodiment of the present application;

[0045] Figure 21 Flowchart of the second embodiment of the pressure adjusting method for the embodiment of the present application;

[0046] Figure 22 Flowchart of the third embodiment of the pressure adjusting method for the embodiment of the present application.

[0047] Label explanation:

[0048] 1, head ring; 2, main control board; 3, top belt; 31, body; 311, shell; 312, sealing belt; 32, pressure sensor; 33, flexible circuit board; 331, wire hole; 332, recessed site; 34, rotary motor; 341, rotating shaft; 3411, mounting groove; 3412, S-shaped groove; 35, adjusting belt; 36, mounting seat; 361, clamping groove; 362, shaft hole; 37, sealing cover; 371, limiting hole; 372, bottom plate; 373, side wall; 374, avoiding groove; 38, positioning hole; 4, positioning needle; 5, mounting hole; 6, soft rubber layer; 7, knob; 8, head top.

[0049] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0051] It should be noted that all directional indications (such as up, down, …) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0052] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated, or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features.

[0053] Furthermore, the technical solutions among the various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0054] Referring to Figures 1 to 7 and Figure 12 and Figure 13 According to one aspect of the present application, the present application provides a pressure adjusting structure, comprising a head ring 1 and a top strap 3 connected with the head ring 1, the head ring 1 is provided with a main control board 2, the top strap 3 comprises a body 31 and a pressure sensor 32, a flexible circuit board 33, a rotary motor 34 and an adjusting strap 35 arranged in the body 31, the flexible circuit board 33 is electrically connected with the main control board 2, the rotary motor 34 and the pressure sensor 32 are respectively installed on the flexible circuit board 33, the adjusting strap 35 is installed on the rotating shaft 341 of the rotary motor 34 and the two ends of the adjusting strap 35 respectively extend to both sides of the top strap 3, and the body 31 is a flexible member, so that the tightness of the adjusting strap 35 is controlled by the rotary motor 34 to drive the body 31 to deform.

[0055] It should be noted that the pressure adjusting structure is mainly applied to a virtual reality device. In general, when the virtual reality device is worn on the top of the human head 8, the top of the human head 8 has multiple positions in contact with the virtual reality device, and the contact parts form multiple supporting points for supporting the virtual reality device. Referring to Figure 16 and Figure 17 A, B, C, D, E and F points, respectively, are A points where the top strap 3 is in contact with the top of the human head 8, B points where the head ring 1 is in contact with the nose, C and D points where the head ring 1 is in contact with the two ears, and E and F points where the head ring 1 is in contact with the back of the head and the forehead due to friction, E and F points play an auxiliary supporting role and can be ignored. In an ideal state, the uniform force on the A / B / C / D four points will bring a more comfortable feeling, because the force of the four points is not large. If the weight of the whole machine is mainly borne by the supporting point A, the user will feel that the pressure on the top of the human head 8 is too large and uncomfortable. If the weight of the whole machine is mainly borne by the B / C / D three points, the ears and the nose will feel uncomfortable. In the prior art, the pressure of the top strap 3 on the top of the human head 8 is not adjustable, so when the force is uneven, the user will feel uncomfortable, and it cannot be adjusted.

[0056] In the above embodiment of the present application, the pressure of the headband 3 on the head 8 is detected by the pressure sensor 32, and the detected pressure value is transmitted to the main control board 2 through the flexible circuit board 33. The main control board 2 compares the detected pressure value with the preset pressure value, and sends a control signal to the rotary motor 34 according to the comparison result. The rotary motor 34 controls the tightness of the adjusting band 35 through the rotation direction and rotation angle of the rotating shaft 341. Since the body 31 is a flexible member made of flexible material, the adjusting band 35 will cause the body 31 to deform during the adjustment process. After the deformation of the body 31, the pressure of the body 31 on the head 8 will change, thereby adjusting the pressure of the body 31 on the head 8 until the pressure value detected by the pressure sensor 32 is within the preset pressure value range. Specifically:

[0057] When the user wears the virtual reality device, the pressure sensor 32 in the headband 3 starts to detect the pressure value on the head 8. Assuming that the pressure value is 5 Pa, this pressure value is transmitted to the main control board 2 through the flexible circuit board 33 for judgment. Assuming that the static interval of the preset pressure value is 3 Pa-7 Pa, which is the interval that the human body feels comfortable through experiments. 5 Pa is within the interval, the human body feels comfortable, and the rotary motor 34 will not drive the adjusting band 35 to rotate, which means that the headband 3 is in a static state.

[0058] If the detected pressure value is 2 Pa, which is lower than the static interval of the preset pressure value, it means that the head 8 does not bear enough pressure, and the nose and ears bear too much pressure, which will cause the human body to be uncomfortable. The main control board 2 controls the rotating shaft 341 of the rotary motor 34 to rotate in the forward direction to drive the adjusting band 35 to move in the tightening direction. The tightening of the adjusting band 35 causes the body 31 to deform and increase the pressure on the head 8, until the pressure value detected by the pressure sensor 32 enters the pressure static interval and stops.

[0059] If the detected pressure value is 9 Pa, which is higher than the static interval of the preset pressure value, it means that the head 8 bears too much pressure, and the nose and ears bear too little pressure, which will cause the human body to be uncomfortable. The main control board 2 will make the rotating shaft 341 of the rotary motor 34 rotate in the reverse direction to drive the adjusting band 35 to move in the loosening direction. The tightening of the adjusting band 35 causes the body 31 to deform and reduce the pressure on the head 8, until the pressure value detected by the pressure sensor 32 enters the pressure static interval and stops.

[0060] This embodiment has the advantages of being able to automatically adjust the pressure on the head 8 according to the detection value of the pressure sensor 32, ensuring that the forces on each support point of the human head are uniform, and improving the wearing comfort.

[0061] In an embodiment, the flexible circuit board 33 always has a surplus bending amount during the deformation of the body 31. Referring to Figure 18 and Figure 19, the flexible circuit board 33 always has a surplus bending amount during the adjustment process, and will not be damaged and will not bear tension, only the adjustment belt 35 bears tension. In addition, referring to Figure 4 , the number of pressure sensors 32 can be multiple, for example, can be 3, the pressure on the head 8 can be detected from multiple points, and the detected pressure value is the average of the pressure values detected by the multiple pressure sensors 32.

[0062] In an embodiment, referring to Figures 6 to 12 , the body 31 is also provided with a mounting seat 36 and a sealing cover 37, which cooperate to form a containing cavity containing the rotary motor 34. The mounting seat 36 is formed with a clamping groove 361 and a shaft hole 362, and the rotary motor 34 is mounted in the clamping groove 361 and the rotating shaft 341 is rotatably mounted in the shaft hole 362. Referring to Figure 9 , the sealing cover 37 includes a bottom plate 372 and side walls 373 formed on opposite sides of the bottom plate 372, and each of the two side walls 373 is formed with a limiting hole 371 for the adjustment belt 35 to pass through. Specifically, the flexible circuit board 33 is formed with a recessed position, and the mounting seat 36 and the wire passing hole 331 are mounted on the recessed position. The mounting seat 36 only occupies a part of the recessed position, and the size of the sealing cover 37 matches the shape of the mounting seat 36, that is, the sealing cover 37 only covers the mounting seat 36, and partially covers the recessed position, but will not cover the wire passing hole 331 on the recessed position. Of course, the sealing cover 36 is also provided with a avoiding slot 374 for avoiding the rotating shaft 341. The rotating shaft 341 is provided with a mounting groove 3411, and the adjustment belt 35 is mounted in the mounting groove 3411. In a specific embodiment, the mounting groove 3411 can be an S-shaped groove 3412. The connection position between the mounting groove 3411 and the adjustment belt 35 is coated with adhesive. The connection position between the adjustment belt 35 and the mounting groove 3411 is fixed with adhesive to enhance the connection strength between the adjustment belt 35 and the mounting groove 3411, so that the rotating shaft 341 can wind the adjustment belt 35 thereon when rotating. Here, the S-shaped groove 3412 is provided to increase the contact area between the adjustment belt 35 and the mounting groove 3411 and the pressure therebetween, thereby facilitating the rotating shaft 341 to adjust and control the tightness of the adjustment belt 35. Of course, the shape of the mounting groove 3411 is not limited to S-shaped, but can also be other arc-shaped structures. The sealing cover 37 and the mounting seat 36 are both provided with threaded positions, and a threaded fastener can be used to fix the sealing cover 37 on the mounting seat 36, which can not only ensure the connection between the adjustment belt 35 and the rotating shaft 341, but also enable the rotary motor 34 to be placed in a sealed containing cavity, so that it will not be wrapped by the injection material during the subsequent injection process and will not be able to rotate.

[0063] In an embodiment, referring to Figure 3 and Figure 4The flexible circuit board 33 comprises a front surface and a back surface, and the body 31 comprises a housing 311 and a sealing band 312, the back surface is arranged towards the housing 311, the pressure sensor 32 is installed on the back surface to detect the pressure borne by the head top 8 of the human body, a soft rubber layer 6 is arranged on the pressure sensor 32, and the rotary motor 34 is arranged on the front surface. The flexible circuit board 33 is arranged between the housing 311 and the sealing band 312. The flexible circuit board 33 is provided with wire holes 331 for the adjusting band 35 to extend from the front surface to the back surface. The number of the wire holes 331 is two, and the wire holes 331 are arranged on both sides of the mounting seat 36 respectively. The two ends (two tail portions) of the adjusting band 35 pass through the two wire holes 331 respectively, the adjusting band 35 extends from the front surface of the flexible circuit board 33 to the back surface of the flexible circuit board 33, the sealing band 312 covers the side of the flexible circuit board 33 away from the housing 311, a soft rubber layer 6 made of the same material as the housing 311 is injection molded on the housing 311, the soft rubber layer 6 covers the surface of the sealing band 312 and the side of the body 31, and fills into the gap of the body 31, but does not enter the sealing cavity, so that the whole component forms an integral top band 3, and the stress is uniform, there is no gap in appearance, the internal circuit elements are protected, and the appearance is improved. At this time, the surface of the pressure sensor 32 is provided with a soft rubber layer 6, and the sealing cover 37 and the mounting seat 36 are connected with the body 31 through the soft rubber layer 6, as shown in point H in Figure 12 It should be noted that the part of the adjusting band 35 drawn out of the wire hole 331 can be wrapped by the filled soft rubber layer 6, so that the adjusting band 35 can drive the body 31 to move and deform through the soft rubber layer. Of course, in other embodiments, the two end portions of the adjusting band 33 can be directly connected with the body 31 to drive the body 31 to deform.

[0064] In an embodiment, referring to Figures 13 to 15The pressure adjusting structure further comprises positioning pins 4, the top band 3 is provided with positioning holes 38 on both sides, the head ring 1 is provided with mounting holes 5, and the positioning pins 4 pass through the positioning holes 38 and the mounting holes 5 to connect the top band 3 and the head ring 1. The head ring 1 is in the shape of a ring and is used to be worn on the side of the head, and the top band 3 is in the shape of an arc and is provided with mounting holes 5 on both sides of the head ring 1, and the two ends of the printed circuit board of the top band 3 are respectively mounted into the mounting holes 5, that is, the two ends of the flexible circuit board 33, one end is electrically connected with the main control board 2, and the other end is connected with other circuit systems of the head ring 1. In the installation process, the two positioning pins 4 are inserted into the positioning holes 38 of the top band 3, and then the end of the top band 3 and the positioning pins 4 are inserted into the mounting holes 5 of the head ring 1 in sequence, and finally the printed circuit board in the top band 3 body 31 is connected with the main control board 2. The embodiment positions the installation of the top band 3 through the positioning pins 4, improves the installation precision, and adopts a detachable connection mode, which is convenient for adjustment. In addition, the head ring 1 can be spliced from two parts, and the width of the two spliced parts can be adjusted through the knob 7 to meet the needs of different users.

[0065] According to another aspect of the present application, the present application also provides a virtual reality device, which comprises a display structure and the above-mentioned pressure adjusting structure, and the display structure is installed on the head ring 1. Since the virtual reality device comprises all the embodiments of the above-mentioned pressure adjusting structure, it at least has all the beneficial effects brought by all the above-mentioned embodiments, which will not be described here.

[0066] Reference Figure 20 , Figure 20 The embodiment is a flowchart of a pressure adjusting method, and the pressure adjusting method comprises the following steps:

[0067] S100, controlling the pressure sensor 32 to detect the pressure value of the top of the head 8 of the human body;

[0068] The pressure adjusting method can be applied to the above-mentioned pressure adjusting structure and virtual reality device. When the user wears the virtual reality device, the pressure sensor 32 in the top band 3 starts to detect the pressure value of the top of the head 8, and sends the detected pressure value to the main control board 2 through the flexible circuit board 33. The number of pressure sensors 32 can be multiple, for example, three, which can detect the pressure of the top of the head 8 from multiple points, and the detected pressure value is the average value of the pressure values detected by the multiple pressure sensors 32.

[0069] S200, controlling the main control board 2 to compare the pressure value with a preset pressure value;

[0070] The preset pressure value is based on the pressure value range when the human body is comfortable to wear. When the detected pressure value is within the preset pressure value range, it indicates that the human body is comfortable to wear. When the detected pressure value is outside the preset pressure value range, it needs to be adjusted by rotating the motor 34.

[0071] S300, according to the comparison result, a control signal is sent to the rotating motor 34, and the rotating motor 34 controls the rotating shaft 341 to rotate to adjust the tightness of the adjusting belt 35, so as to drive the top belt 3 to deform through the adjusting belt 35. Specifically,

[0072] Referring to Figure 21 , Figure 21 The flowchart of the second embodiment of the pressure adjusting method of the embodiment of the application is shown in FIG. 3. S300 includes S301. If the pressure value is less than the preset pressure value, the main control board 2 sends a positive rotation signal to the rotating motor 34, and the rotating motor 34 rotates in the positive direction to tighten the adjusting belt 35, so as to drive the top belt 3 to deform through the adjusting belt 35 to increase the pressure on the human head 8.

[0073] If the preset pressure value is 3Pa-7Pa, and the detected pressure value is 5Pa, the pressure value is transmitted to the main control board 2 through the flexible circuit board 33 for judgment. In this interval, the human body feels comfortable, and 5Pa is just in the interval, the human body feels comfortable, and the rotating motor 34 will not drive the adjusting belt 35 to rotate, that is, the top belt 33 is in a static state.

[0074] When the detected pressure value is low, such as 2Pa, which is lower than the preset pressure value interval, it means that the pressure on the head 8 is not enough, and the nose and ears bear too much pressure, which will cause the human body to be uncomfortable. The main control board 2 controls the rotating shaft 341 of the rotating motor to rotate in the positive direction to drive the adjusting belt 35 to move in the tightening direction, and the adjusting belt 35 is tightened to deform the body 31 to increase the pressure on the head 8, until the pressure sensor 32 detects the pressure value entering the pressure static interval and stops.

[0075] Referring to Figure 22 , Figure 22 The flowchart of the third embodiment of the pressure adjusting method of the embodiment of the application is shown in FIG. 4. S300 further includes S302. If the pressure value is greater than the preset pressure value, the main control board 2 sends a reverse rotation signal to the rotating motor 34, and the rotating motor 34 rotates in the reverse direction to loosen the adjusting belt 35, so as to drive the top belt 3 to deform through the adjusting belt 35 to increase the pressure on the human head 8.

[0076] If the detected pressure value is 9 Pa, which is higher than the preset pressure value of the static interval, it means that the head 8 bears too much pressure and the nose and ears bear too little pressure, which will cause the human body to be uncomfortable. The main control board 2 will make the rotating shaft 341 of the rotating motor rotate reversely to drive the adjusting belt 35 to move in the direction of relaxation. The adjusting belt 35 is tightened to deform the body 31 to reduce the pressure on the head 8 until the pressure sensor 32 detects that the entering pressure is in the static interval and stops. The embodiment has the advantages that the pressure on the head 8 can be automatically adjusted according to the detection value of the pressure sensor 32, the force on each support point of the human head is uniform, and the wearing comfort is improved.

[0077] The above is only an optional embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or direct / indirect application in other related technical fields within the technical concept of the present application and the content of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. A pressure regulating structure, characterized in that, The device includes a headband and a top strap connected to the headband. A main control board is disposed inside the headband. The top strap includes a body and a pressure sensor, a flexible circuit board, a rotary motor, and an adjustment belt disposed within the body. The flexible circuit board is electrically connected to the main control board. The rotary motor and the pressure sensor are respectively mounted on the flexible circuit board. The rotary motor is located at the middle position along the length of the flexible circuit board. The adjustment belt is mounted on the rotation shaft of the rotary motor, and both ends of the adjustment belt extend to both sides of the top strap. The body is a flexible component, so that the tension of the adjustment belt can be adjusted by the rotary motor, thereby driving the body to deform. After the body deforms, it changes the pressure between the body and the top of the head, thereby adjusting the pressure of the body on the top of the head.

2. The pressure regulating structure according to claim 1, characterized in that, The body is also provided with a mounting base and a sealing cover. The mounting base and the sealing cover cooperate to form a receiving cavity for accommodating the rotary motor. The mounting base is formed with a slot and a shaft hole. The rotary motor is mounted in the slot and the rotating shaft is rotatably mounted in the shaft hole. Limiting holes are formed on both sides of the sealing cover for the adjustment belt to pass through.

3. The pressure regulating structure according to claim 1, characterized in that, The rotating shaft is provided with a mounting groove, and the adjusting belt is installed in the mounting groove.

4. The pressure regulating structure according to claim 3, characterized in that, The mounting slot is an S-shaped slot.

5. The pressure regulating structure according to claim 3, characterized in that, The connection points between the mounting groove and the adjusting belt are coated with adhesive.

6. The pressure regulating structure according to any one of claims 1 to 5, characterized in that, The pressure regulating structure also includes a positioning pin, positioning holes are formed on both sides of the top band, and mounting holes are formed on the head ring. The positioning pin passes through the positioning holes and the mounting holes to connect the top band and the head ring.

7. The pressure regulating structure according to any one of claims 1 to 5, characterized in that, The flexible circuit board includes a front side and a back side. The body includes a housing and a sealing strip. The back side is disposed facing the housing. The pressure sensor is mounted on the back side to detect the pressure exerted on the top of a human head. The pressure sensor is covered with a soft adhesive layer. The rotary motor is disposed on the front side.

8. The pressure regulating structure according to claim 7, characterized in that, The flexible circuit board is provided with a through hole for the adjustment strip to extend from the back side to the front side.

9. The pressure regulating structure according to any one of claims 1 to 5, characterized in that, The flexible circuit board always has a margin of bending allowance during the deformation of the body.

10. A virtual reality device, characterized in that, The virtual reality device includes a display structure and a pressure adjustment structure as described in any one of claims 1 to 9, wherein the display structure is mounted on the headband.

11. A pressure regulation method, characterized in that, The pressure regulation method is applied to the pressure regulation structure according to any one of claims 1 to 9, and the pressure regulation method includes the following steps: Control the pressure sensor to detect the pressure value on the top of the human head; The main control board compares the pressure value with the preset pressure value. Based on the comparison result, a control signal is sent to the rotary motor, which controls the rotation of the rotating shaft and adjusts the tension of the belt according to the control signal, so as to drive the top belt to deform through the adjustment belt.

12. The pressure regulation method according to claim 11, characterized in that, The step of sending a control signal to a rotary motor based on the comparison result, and the rotary motor controlling the rotation of the rotating shaft to adjust the tension of the belt according to the control signal, so as to drive the top belt to deform through the adjustment belt, includes: If the pressure value is less than the preset pressure value, the main control board sends a forward rotation signal to the rotary motor. The rotary motor rotates forward, causing the adjustment belt to tighten, thereby driving the top belt to deform and increase the pressure on the top of the human head.

13. The pressure regulation method according to claim 11, characterized in that, The step of sending a control signal to a rotary motor based on the comparison result, and the rotary motor controlling the rotation of the rotating shaft to adjust the tension of the belt according to the control signal, so as to drive the top belt to deform through the adjustment belt, includes: If the pressure value is greater than the preset pressure value, the main control board sends a reverse rotation signal to the rotary motor. The rotary motor rotates in the reverse direction, causing the adjustment belt to loosen, thereby driving the top belt to deform and increase the pressure on the top of the human head.

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