Three-dimensional rocker and intelligent ring thereof

Abstract

According to the three-dimensional rocker and the intelligent ring thereof, as a user applies pressure in different sizes and directions to the three-dimensional rocker, deformation in different degrees and directions can be generated at different positions of a strain gauge, and after a first strain bridge, a second strain bridge and a third strain bridge respectively collect deformation quantities at the corresponding positions, the three-dimensional rocker and the intelligent ring of the three-dimensional rocker are obtained. And the signals output at the same time show different change rules, so that the pressure applied to the three-dimensional rocker by a user in different sizes and directions can be judged and detected. Therefore, actions of light pressing, heavy pressing, forward pushing, backward pushing, upward pulling, downward pulling and the like of the user are realized. The intelligent ring comprises a ring main body and the three-dimensional rocker, and the strain gauge in the three-dimensional rocker is fixedly connected with the ring main body. According to the three-dimensional rocker and the intelligent ring thereof disclosed by the invention, rich three-dimensional operations can be provided for a user. Pressing and up-and-down and left-and-right shaking operations of the user on the ring can be easily recognized, so that gesture operations of the user are accurately transmitted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent wearable devices, and in particular to a three-dimensional rocker and an intelligent ring thereof. BACKGROUND

[0002] With the rise of intelligent rings in the field of AI human-computer interaction, how to conveniently and accurately transmit the gestures of a user on a ring to a terminal device has become a prominent problem.

[0003] However, the common operation modes of intelligent rings on the market can only provide one-dimensional operations such as pressing or touching, and cannot provide three-dimensional rich operations for users, thereby greatly reducing the usability of the ring. SUMMARY

[0004] In order to solve the defect that the existing device cannot provide three-dimensional operations, the present application provides a three-dimensional rocker.

[0005] The technical solution adopted by the present application is a three-dimensional rocker, comprising a strain sheet, a first strain bridge, a second strain bridge and a third strain bridge are fixedly connected to the lower surface of the strain sheet, the third strain bridge is located between the first strain bridge and the second strain bridge, the arrangement direction of the third strain bridge is perpendicular to the arrangement direction of the first strain bridge and the second strain bridge, a rod body is fixedly connected to the upper surface of the strain sheet, and the rod body is located directly above the third strain bridge.

[0006] In some embodiments, in the projection of the arrangement direction of the third strain bridge and the projection perpendicular to the arrangement direction of the third strain bridge, the resistors in the third strain bridge do not overlap with the resistors in the first strain bridge and the second strain bridge.

[0007] In some embodiments, the resistors in the first strain bridge, the second strain bridge and the third strain bridge are arranged symmetrically up and down and left and right on the lower surface of the strain sheet, and the rod body is located at the intersection of the two symmetry axes.

[0008] In some embodiments, the four resistors in the first strain bridge, the second strain bridge and the third strain bridge form a 2x2 rectangular arrangement.

[0009] In some embodiments, the arrangement direction of the first strain bridge, the second strain bridge and the third strain bridge is configured as the length direction of the resistors.

[0010] In some embodiments, the lower surface of the strain sheet is connected with a support structure closer to the edge of the strain sheet than the first strain bridge, the second strain bridge and the third strain bridge, the support structure forms a deformation space, and the first strain bridge, the second strain bridge and the third strain bridge are located in the deformation space.

[0011] In some embodiments, the support structure is a welding point, and the strain gauge is fixedly connected to the circuit board through the welding point.

[0012] In some embodiments, the first strain bridge, the second strain bridge and the third strain bridge are electrically connected through the welding point and the circuit board.

[0013] In some embodiments, the strain gauge is a steel plate, and the rod body and the strain gauge are integrally formed.

[0014] In order to solve the defect that the common intelligent ring operation mode can only provide one-dimensional operation such as pressing or touching, and cannot provide three-dimensional rich operation for users, the application provides an intelligent ring.

[0015] The technical scheme adopted by the application is an intelligent ring, which comprises a ring main body and the three-dimensional rocker described above, and the strain gauge in the three-dimensional rocker is fixedly connected to the ring main body.

[0016] Compared with the prior art, the application has the following beneficial effects:

[0017] The application discloses a three-dimensional rocker, the lower surface of the strain gauge is fixedly connected with a first strain bridge, a second strain bridge and a third strain bridge, the third strain bridge is located between the first strain bridge and the second strain bridge, the arrangement direction of the third strain bridge is perpendicular to the arrangement direction of the first strain bridge and the second strain bridge, the upper surface of the strain gauge is fixedly connected with a rod body, and the rod body is located directly above the third strain bridge. With the user applying different sizes and directions of pressure to the three-dimensional rocker, different positions of the strain gauge will produce different degrees and directions of deformation, and after the first strain bridge, the second strain bridge and the third strain bridge respectively collect the deformation amounts at the corresponding positions, the signals output at the same time will present different change rules, so that the different sizes and directions of pressure applied by the user to the three-dimensional rocker can be judged and detected. Thus, the actions of the user, such as light pressing, heavy pressing, forward pushing, backward pushing, upward pulling and downward pulling, can be realized.

[0018] Compared with the prior art, the three-dimensional rocker disclosed by the application can provide three-dimensional rich operation for users.

[0019] The application also discloses an intelligent ring, which comprises a ring main body and the three-dimensional rocker described above, and the strain gauge in the three-dimensional rocker is fixedly connected to the ring main body. Compared with the prior art, the user's pressing operation on the ring and the up-down-left-right rocking operation can be easily identified, so that the user's gesture operation can be accurately transmitted. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be described in detail below with reference to the embodiments and the drawings, in which:

[0021] Figure 1A schematic diagram of a three-dimensional joystick provided according to an embodiment of the present invention is shown;

[0022] Figure 2 A schematic diagram of a three-dimensional joystick according to another embodiment of the present invention is shown;

[0023] Figure 3 A schematic diagram showing the positional distribution of a first strain bridge, a second strain bridge, and a third strain bridge in a three-dimensional rocker according to an embodiment of the present invention is shown.

[0024] Figure 4 It shows according to Figure 3 A circuit connection diagram of the first strain bridge in a three-dimensional rocker is provided.

[0025] Figure 5 It shows according to Figure 3 A circuit connection diagram of a second strain bridge in a three-dimensional rocker is provided.

[0026] Figure 6 It shows according to Figure 3 A circuit connection diagram of a third strain gauge bridge in a three-dimensional rocker is provided.

[0027] Figure 7 A module configuration diagram of a three-dimensional joystick provided according to an embodiment of the present invention is shown.

[0028] Label Explanation:

[0029] 10. Rod body;

[0030] 20. Strain gauges;

[0031] 31. First strain gauge bridge; 32. Second strain gauge bridge; 33. Third strain gauge bridge;

[0032] 40. Supporting structure;

[0033] 50. Circuit board;

[0034] 60. Protective casing. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] This invention discloses a three-dimensional joystick; please refer to [the relevant documentation]. Figures 1 to 7The lower surface of the strain gauge 20 is fixedly connected with a first strain bridge 31, a second strain bridge 32 and a third strain bridge 33, the third strain bridge 33 is located between the first strain bridge 31 and the second strain bridge 32, the arrangement direction of the third strain bridge 33 is perpendicular to the arrangement direction of the first strain bridge 31 and the second strain bridge 32, the upper surface of the strain gauge 20 is fixedly connected with the rod body 10, and the rod body 10 is located directly above the third strain bridge 33.

[0037] With the user exerting pressure of different sizes and directions on the three-dimensional rocker, different positions of the strain gauge 20 will produce deformation of different degrees and directions, and the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33 will output signals showing different change rules at the same time after collecting the deformation amounts at the corresponding positions, so that the pressure of different sizes and directions exerted by the user on the three-dimensional rocker can be judged and detected. Thus, the user's actions such as light pressing, heavy pressing, forward pushing, backward pushing, upward pulling and downward pulling can be realized. Compared with the prior art, the three-dimensional rocker disclosed in the application can provide three-dimensional rich operations for the user.

[0038] For the convenience of the following description, the arrangement direction of the third strain bridge 33 is referred to as the left-right direction, and the arrangement direction of the first strain bridge 31 and the second strain bridge 32 is referred to as the up-down direction.

[0039] Specifically, since the left-right direction and the up-down direction are perpendicular, the third strain bridge 33 is located between the first strain bridge 31 and the second strain bridge 32, and the rod body 10 is located directly above the third strain bridge 33. When the user pushes in the left-right direction, pushing to the left and pushing to the right will cause the strain gauge 20 to produce opposite deformations, that is, one side of the strain gauge 20 is arched and the other side is concave in the left-right direction. At this time, the third strain bridge 33 is the main detection channel, and the third strain bridge 33 identifies the opposite deformation amount through its own stretching / compression state, so as to judge the pushing direction of the user, and can be used to judge the size of the user's pushing force according to the size of the deformation amount. The signal amount of the third strain bridge 33 is CH3, and the signal amount in the left-right direction is obtained by calculation through CH3 at this time.

[0040] When the user pushes in the up-down direction, pushing up and pushing down will make the strain gauge 20 produce opposite deformation, i.e. one side of the strain gauge 20 is arched and the other side is concave in the up-down direction. At this time, the first strain bridge 31 and the second strain bridge 32 are the main detection channels, the first strain bridge 31 is in tension state, and the second strain bridge 32 is in compression state; the first strain bridge 31 is in compression state, and the second strain bridge 32 is in tension state. Thus, the pushing direction of the user is determined, and the size of the user's pushing force is determined according to the size of the deformation. At this time, the signal amount of the first strain bridge 31 is CH1, and the signal amount of the second strain bridge 32 is CH2. The signal amount in the up-down direction can be obtained by CH1 minus CH2.

[0041] When the user pushes down or pulls up the rod body 10, the strain gauge 20 will be arched and concave at the position where the rod body 10 is pressed down or pulled up. At this time, the first strain bridge 31 and the second strain bridge 32 are the main detection channels, and the first strain bridge 31 and the second strain bridge 32 are in compression state at the same time, or in tension state at the same time. Thus, the user's pushing or pulling action is recognized, and the size of the pressure or tension is determined according to the size of the deformation. At this time, the signal amount of the pushing / pulling can be obtained by CH1 plus CH2.

[0042] In a particularly specific embodiment, the pressure sensor can identify the operation in three dimensions. The resistance arrangement of the pressure sensor is shown in Figure 3 . Among them, R3, R4, R7, R8, R11, R12 are measurement resistors, and the rest are reference resistors. The advantage of arranging the resistors in this way is that in order to ensure that there is a good stress change response in three directions, as shown in Figure 3 , the main measurement resistors are placed around the rocker. In this way, the three-direction action of the rocker can be effectively detected.

[0043] The module form is shown in Figure 7 . When the user pushes the rod body 10 from the X, Y, Z three directions respectively, the resistors 1-12 will have corresponding changes. Specifically, please refer to Figures 3 to 6 . As shown in the following figure, resistors 1-12 together form three Wheatstone bridges, which are CH1( Figure 4 ) corresponding to resistors 1-4, CH2( Figure 5 ) corresponding to resistors 5-8, and CH3( Figure 6 ) corresponding to resistors 9-12. Among them, R3, R4, R7, R8, R11, R12 are measurement resistors, and the rest are reference resistors.

[0044] The action recognition is as follows, please refer to Figure 3When the user pushes left / right in the X direction, CH3 is the main response channel, and the resistance values of R11 and R12 change, thereby changing the output voltage of the full-bridge. The signal calculation method is as follows:

[0045] X direction signal amount = CH3 signal amount

[0046] When the user pushes up / down in the Y direction, the measurement resistances of CH1 and CH2 change. The signal calculation method is as follows:

[0047] Y direction signal amount = CH1 signal amount - CH2 signal amount

[0048] When the user pushes down / up in the Z direction, the measurement resistances of CH1 and CH2 change. The signal calculation method is as follows:

[0049] Z direction signal amount = CH1 signal amount + CH2 signal amount

[0050] It should be noted that the rod body 10 is arranged directly above the third strain bridge 33. On the one hand, this is to identify the direction of the left-right direction force. When the pressure is applied in the direction of the third strain bridge 33, the third strain bridge 33 will have a significant strain change, while the strain changes of the first and second strain bridges 32 are relatively small. By analyzing the output signal differences of the strain bridges, the direction of the pressure can be accurately determined, and it can be distinguished whether the pressure is in the direction of the third strain bridge 33 or in the direction of the first and second strain bridges 32, or in a combination of these directions. On the other hand, it can improve the sensitivity of direction detection. When pressure is applied directly above the rod body 10, the third strain bridge 33 can most effectively sense the deformation caused by the pressure. This direct mechanical transmission relationship makes the third strain bridge 33 more sensitive to small changes in the direction of the pressure.

[0051] The arrangement direction of the third strain bridge 33 is perpendicular to the arrangement directions of the first strain bridge 31 and the second strain bridge 32. In this way, the third strain bridge 33 and the first strain bridge 31 and the second strain bridge 32 form a two-dimensional orthogonal coordinate system. By measuring the strain outputs of the three strain bridges, the direction of the pressure can be more accurately identified.

[0052] In some embodiments, please refer to Figure 3 In the projection of the arrangement direction of the third strain bridge 33 and the projection perpendicular to the arrangement direction of the third strain bridge 33, the resistors in the third strain bridge 33 do not overlap with the resistors in the first strain bridge 31 and the second strain bridge 32.

[0053] When the rod 10 is under stress, the strain gauges measure the stress by sensing the strain of their own resistance. If there is an overlapping area between the resistances, the strain of one strain gauge will be transmitted to the resistance of another strain gauge through the overlapping part when the former is under stress. For example, when the third strain gauge 33 is under stress and deforms, if its resistance overlaps with the resistance of the first strain gauge 31, the strain of the third strain gauge 33 will be partially transmitted to the first strain gauge 31, causing the first strain gauge 31 to also generate an unexpected strain signal, which interferes with the accurate measurement of the pressure in the direction corresponding to the first strain gauge 31. The design without overlapping areas between the resistances ensures that the strain of each strain gauge is caused only by the pressure in the direction corresponding to itself, avoiding the interference caused by mechanical coupling, and making the measurement results more accurately reflect the actual pressure situation.

[0054] In addition, the resistances generate weak electric and magnetic fields during operation. If the resistance of the third strain gauge 33 overlaps with the resistances of the first and second strain gauges 32, the electric and magnetic fields generated by them will be coupled with each other. This coupling may cause unexpected changes in the resistance value, thereby affecting the output signal of the strain gauge. For example, the magnetic field generated by the resistance of the third strain gauge 33 may induce an electromotive force in the resistance of the first strain gauge 31, interfering with the normal measurement of the first strain gauge 31. The design without overlapping areas effectively reduces the coupling of electric and magnetic fields, ensuring the independence and stability of the electrical signals of each strain gauge.

[0055] In some embodiments, referring to Figure 3 , the resistances in the first, second, and third strain gauges 31, 32, and 33 are symmetrically arranged on the lower surface of the strain sheet 20, and the rod 10 is located at the intersection of the two symmetry axes.

[0056] The symmetrical distribution of the resistances of the three strain gauges can provide more abundant multi-directional strain information for pressure direction identification. Each strain gauge corresponds to a specific direction, and through comprehensive analysis of the output signals of the three strain gauges, the direction of the pressure can be more accurately determined. For example, when the direction of the pressure is between the directions corresponding to two strain gauges, the symmetrically distributed resistances can more finely reflect the component of the pressure in the intermediate direction, thereby improving the resolution and accuracy of pressure direction identification.

[0057] More importantly, under the symmetrical layout, the strain sheet 20 has better stability in identifying the direction of the pressure. Even if the rod 10 is subjected to slight vibration or interference, causing temporary changes in the direction of the pressure, the symmetrically distributed resistances can be mutually verified and corrected through the multi-directional strain information, thereby maintaining the accuracy of the identification of the direction of the pressure.

[0058] In some embodiments, referring to Figure 3The four resistors in the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33 form a 2x2 rectangular arrangement.

[0059] The 2x2 rectangular arrangement of resistors can directly and effectively sense the strain caused by the rectangular direction force, and the sensing of the rectangular direction force is clearer than that of other direction forces. In addition, the 2x2 rectangular arrangement has obvious geometric symmetry, which can greatly simplify the identification algorithm of the rectangular direction force. In the algorithm design, the symmetry axis and symmetry center of the rectangle can be used to convert the complex force direction identification problem into the analysis and judgment of the signal under certain geometric relationship.

[0060] In some embodiments, referring to Figure 3 The arrangement direction of the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33 is configured as the length direction of the resistors.

[0061] The length direction of the resistor is the direction with the most significant strain effect. Arranging the strain bridge according to the length direction of the resistor can maximize the use of the change characteristics of the strain resistor. When the rod 10 is subjected to an external force to produce strain, the elongation or shortening of the resistor in the length direction is the most obvious, and this change will directly and greatly change the resistance value.

[0062] In some embodiments, referring to Figure 2 The lower surface of the strain sheet 20 is connected with a support structure 40 closer to the edge of the strain sheet 20 than the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33, and the support structure 40 forms a deformation space, and the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33 are located in the deformation space.

[0063] Specifically, on the one hand, the arrangement of the support structure 40 can protect the strain bridge and avoid the impact directly acting on the strain bridge in the deformation space. On the other hand, the arrangement of the deformation space can prevent the strain sheet 20 from being hindered when deformed.

[0064] It should be noted that the strain sheet 20 can be fixed on other structures in use, or the edges of the strain sheet 20 can be clamped directly by hand to realize subsequent force detection.

[0065] In some embodiments, referring to Figure 2 The support structure 40 is a welding point, and the strain sheet 20 is fixedly connected to the circuit board 50 through the welding point.

[0066] The welding points are formed by melting solder at high temperature and fusing the solder with the metal parts of the strain gauge 20 and the circuit board 50. The fusion makes the strain gauge 20 and the circuit board 50 form a solid whole, which can withstand greater mechanical stress.

[0067] In some embodiments, referring to Figure 2 , the first strain bridge 31, the second strain bridge 32 and the third strain bridge 33 are electrically connected to the circuit board 50 through the welding points.

[0068] The welding point connection method does not require additional connectors and cables, so the connection between the strain bridge and the circuit board 50 is more compact. Moreover, the connection with the circuit board 50 can avoid the addition of other structural members. This helps to reduce the volume of the entire strain gauge 20 sensor and save installation space, which is particularly suitable for occasions with strict space requirements.

[0069] In some embodiments, referring to Figure 1 and Figure 2 , the strain gauge 20 is a steel plate, and the rod body 10 and the strain gauge 20 are integrally formed.

[0070] The integrally formed rod body 10 and strain gauge 20 make the entire component a continuous whole, avoiding the problem of stress concentration at the joint, thereby improving the structural integrity and reliability. In the traditional connection method of the strain gauge 20 and the rod body 10, the connection part is often a weak link of stress, and the stress transmission is uneven, which can easily lead to measurement errors. The integrally formed structure makes the stress transmission between the strain gauge 20 and the rod body 10 more uniform, and the strain gauge 20 can more accurately perceive the strain change on the surface of the rod body 10. In addition to steel plates, the strain gauge 20 can also be made of various materials such as metals, semiconductors, polymers, and composite materials.

[0071] In some embodiments, referring to Figure 1 and Figure 2 Figure 2 , the rod body 10 is a T-shaped rod body 10, which can provide users with a better push-pull experience and facilitate user pressing.

[0072] In some embodiments, a protective shell 60 is provided above the strain gauge 20, and the rod body 10 partially penetrates the protective shell 60 for user pressing and other operations. The protective shell 60 is provided to protect the strain gauge 20 from being damaged by direct impact from the outside. At the same time, the position of the rod body 10 penetrating the protective shell 60 is waterproofed, for example, using a waterproof rubber sleeve.

[0073] In order to solve the defect that the common operation method of the smart ring can only provide one-dimensional operation such as pressing or touching, and cannot provide three-dimensional rich operation for users, the present application provides a smart ring.

[0074] The technical scheme adopted by the present application is an intelligent ring, comprising a ring main body and the three-dimensional rocker, and the strain gauge 20 in the three-dimensional rocker is fixedly connected with the ring main body. Compared with the prior art, the user's pressing on the ring and up-down and left-right rocking operations can be easily identified, so as to accurately transmit the user's gesture operation.

[0075] The ring main body can be a shell, a skeleton or the like, and the ring main body is used for fixing the strain gauge 20 on the three-dimensional rocker.

[0076] In the description of the present specification, if the terms "embodiment one", "the present embodiment", "in one embodiment" and the like are described, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the invention or at least one embodiment or example of the invention. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example; moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in an appropriate manner.

[0077] In the description of the present specification, the terms "connection", "installation", "fixation", "setting", "having" and the like are understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] In the description of the present specification, the relationship terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0079] The above description of the embodiments is to facilitate the understanding and application of the present technology for those skilled in the art, and those skilled in the art can easily make various modifications to these examples and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments, and the following modifications should be within the scope of protection: ① new technical solutions based on the technical solutions of the present application and combined with existing common knowledge, the technical effects produced by the new technical solutions do not exceed the technical effects of the present application; ② equivalent replacement of part of the features of the technical solutions of the present application using known technology, the technical effects produced are the same as the technical effects of the present application; ③ expandable based on the technical solutions of the present application, the essential content of the expanded technical solutions does not exceed the technical solutions of the present application; ④ equivalent transformation using the contents of the present application specification and drawings, direct or indirect application in other related technical fields.

Claims

1. A three-dimensional thumbstick, characterized by The strain gauge includes a first strain bridge, a second strain bridge and a third strain bridge fixedly connected to a lower surface of the strain gauge, the third strain bridge is located between the first strain bridge and the second strain bridge, the arrangement direction of the third strain bridge is perpendicular to the arrangement direction of the first strain bridge and the second strain bridge, and an upper surface of the strain gauge is fixedly connected with a rod body located directly above the third strain bridge.

2. The three-dimensional thumbstick of claim 1, wherein, In the projection of the arrangement direction of the third strain bridge and the projection perpendicular to the arrangement direction of the third strain bridge, the resistors in the third strain bridge do not overlap with the resistors in the first strain bridge and the second strain bridge.

3. The three-dimensional thumbstick of claim 2, wherein, The resistors in the first strain bridge, the second strain bridge and the third strain bridge are symmetrically arranged on the lower surface of the strain gauge, and the rod body is located at the intersection of the two symmetry axes.

4. The three-dimensional thumbstick of claim 3, wherein, The four resistors in the first strain bridge, the second strain bridge and the third strain bridge form a 2x2 rectangular arrangement.

5. The three-dimensional thumbstick of claim 4, wherein, The arrangement direction of the first strain bridge, the second strain bridge and the third strain bridge is configured as the length direction of the resistors.

6. The three-dimensional thumbstick of claim 1, wherein, The lower surface of the strain gauge is connected with a support structure closer to the edge of the strain gauge than the first strain bridge, the second strain bridge and the third strain bridge, the support structure forms a deformation space, and the first strain bridge, the second strain bridge and the third strain bridge are located in the deformation space.

7. The three-dimensional thumbstick of claim 6, wherein, The support structure is a welding point, and the strain gauge is fixedly connected to the circuit board through the welding point.

8. The three-dimensional thumbstick of claim 7, wherein, The first strain bridge, the second strain bridge and the third strain bridge are electrically connected to the circuit board through the welding point.

9. The three-dimensional thumbstick of claim 1, wherein, The strain gauge is a steel plate, and the rod body and the strain gauge are integrally formed.

10. A smart ring, characterized by The three-dimensional rocker includes a ring body and the three-dimensional rocker according to any one of claims 1 to 9, and the strain gauge in the three-dimensional rocker is fixedly connected to the ring body.

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