Intelligent guitar with toggle type trigger key

Abstract

The intelligent guitar comprises a guitar body, a circuit board and a toggle key, the circuit board is arranged in the guitar body, a detection assembly is arranged on the circuit board, a support is arranged on one side of the toggle key so that the toggle key can be rotationally connected to the guitar body through the support, a supporting part is arranged at the bottom of the toggle key, and the toggle key is arranged on the supporting part. The supporting part and the detection assembly are correspondingly arranged, the detection assembly is used for detecting the rotating speed or the rotating angle of the toggle key, a user toggles and presses the toggle key to the other side with a finger to rotate and press the detection assembly on the circuit board, so that the detection assembly generates an electric signal, and the circuit board is controlled to make a corresponding sound according to an electric signal instruction; and the detection assembly can detect the rotation speed of the toggle key, so that the chord speed, the volume and the note weight of the intelligent guitar can be controlled according to different electric signal changes, different styles of music can be played, the playing practice of the intelligent guitar is simpler and safer, and fingers are not hurt.

Description

Technical Field

[0001] The utility model relates to the technical field of guitars, in particular to an intelligent guitar with a toggle-type trigger button. Background Art

[0002] At present, most of the existing guitars are played by plucking the strings. In the process of learning to play the guitar, it is necessary to play and learn continuously, which makes plucking the strings too harmful to the hands and easily scratches the hands, causing frequent bleeding of fingers. In addition, there are many pronunciations in playing the guitar, and the playing methods are complicated. It is not easy for the players to learn and master them. In addition, in the production process of the guitar, it is necessary to adjust the strings by professionals, and the production and installation are difficult. The tightness of the plucking strings determines the tension when they vibrate. The greater the tension, the faster the vibration frequency, and the higher the pitch. The tightness of the plucking strings can be adjusted by rotating the screw to change the pitch. However, excessive adjustment of the plucking strings can easily lead to their breakage, resulting in a short service life. The operation process of adjusting the plucking strings is complicated and inconvenient to use. Utility Model Content

[0003] The utility model aims to provide an intelligent guitar with a plucking trigger button, aiming to solve the technical problems in the prior art that plucking the strings causes great damage to the hands, resulting in inconvenience in use, and is difficult to produce and install.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a smart guitar with a toggle-type trigger button, comprising:

[0005] body;

[0006] A circuit board, the circuit board is arranged in the piano body, and a detection component is arranged on the circuit board; and

[0007] A toggle key, a bracket is provided on one side of the toggle key so that the toggle key can be rotatably connected to the piano body through the bracket, and the bottom of the toggle key has a supporting part, the supporting part is arranged corresponding to the detection component, and the detection component is used to detect the rotation speed or rotation angle of the toggle key.

[0008] Furthermore, the toggle key is tilted from one side to the other side, and the height of the other side of the toggle key relative to the plane where the piano body is located is greater than the height of one side of the toggle key relative to the plane where the piano body is located.

[0009] Furthermore, a receiving groove is provided on the surface of the piano body, the toggle key is installed in the receiving groove, and the other side of the toggle key protrudes out from the receiving groove.

[0010] Furthermore, a strip plate is formed on the top of the toggle key, protruding and extending along the length direction thereof, and the strip plate is inclined toward the other side of the toggle key.

[0011] Furthermore, it also includes an elastic member, a mounting seat is provided in the piano body, the bracket is rotatably connected to the mounting seat via a rotating shaft, the elastic member is provided between the bracket and the mounting seat, and the elastic member is used to reset the rotation of the toggle key to an initial position.

[0012] Furthermore, the bracket includes two cantilever rods arranged at intervals, the rotating shaft is arranged between the two cantilever rods, the elastic member is sleeved on the rotating shaft, and one end of the elastic member is connected to the bracket, and the other end of the elastic member is connected to the locking part in the piano body.

[0013] Furthermore, the detection component comprises:

[0014] an identification area, the identification area being arranged on the circuit board;

[0015] A soft rubber part is arranged above the identification area, and a sensing part is arranged at the bottom of the soft rubber part, and the supporting part is in contact with the soft rubber part, so that when the toggle key is rotated, the supporting part presses down the soft rubber part to cause deformation, so that the identification area contacts the sensing part for detection.

[0016] Furthermore, the soft plastic part has a bottom end, a top end and a cavity extending from the bottom end to the top end, and the sensing part includes at least one conductive column, which is arranged in the cavity so that the detection component contacts the identification area through the conductive column for detection.

[0017] Furthermore, the sensing portion includes two conductive pillars, which are spaced apart from one side of the toggle key to the other side thereof, so that the detection component detects the rotation speed of the toggle key according to the time difference between the identification area and the two conductive pillars respectively contacting each other.

[0018] Furthermore, at least one limiting pin is provided at the bottom end of the soft plastic part, and a limiting hole is correspondingly provided on the circuit board, so that the soft plastic part can be inserted into the limiting hole through the limiting pin and thus installed on the circuit board.

[0019] It can be seen from the above technical scheme that the utility model has a smart guitar with a toggle-type trigger button. By using a finger to toggle the toggle key to the other side to rotate and press the detection component on the circuit board, the detection component generates an electrical signal, and the circuit board controls the corresponding sound according to the electrical signal instruction. The detection component can detect the rotation speed of the toggle key, and then control the speed, volume and weight of the smart guitar chords according to different electrical signal changes, so that different styles of music can be played. In this way, the playing practice of the smart guitar is simpler and safer, does not hurt the fingers, is easy to play the guitar for practice, and the user experience is good. It is also easy to produce and assemble, and the cost is low.

[0020] In order to make the technical concept and other purposes, advantages, features and functions of the present invention more clearly understood, preferred embodiments will be specifically cited in the following specific implementation manner and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a smart guitar with a toggle-type trigger button provided in an embodiment of the present application;

[0023] Figure 2 It is a structural exploded diagram of a smart guitar with a toggle-type trigger button provided by an embodiment of the present application;

[0024] Figure 3 It is a partial structural exploded diagram of a smart guitar with a toggle-type trigger button provided by an embodiment of the present application;

[0025] Figure 4 is a partial structural exploded view of another perspective of a smart guitar with a toggle-type trigger button provided by an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of a combination of a toggle key and a soft plastic member according to an embodiment of the present application;

[0027] Figure 6 is a structural schematic diagram of another viewing angle when a toggle key and a soft plastic component are combined in an embodiment of the present application;

[0028] Figure 7 is a structural schematic diagram of a toggle key of another embodiment provided in an embodiment of the present application;

[0029] Figure 8 This is a front view of a toggle key of another embodiment provided in an embodiment of the present application.

[0030] The above drawings include the following reference numerals:

[0031] 100, piano body; 110, receiving groove; 120, mounting seat; 130, locking portion;

[0032] 200, toggle key; 210, bracket; 211, cantilever rod; 212, through hole; 213, plug hole; 220, rotating shaft; 230, elastic member; 240, supporting part; 250, strip plate;

[0033] 300, circuit board; 310, limiting hole;

[0034] 400, detection component; 410, identification area; 420, soft rubber part; 421, chamber; 422, conductive column; 423, limit pin; 424, extension edge. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0036] Please also read Figures 1 to 8 The present embodiment provides a smart guitar with a toggle-type trigger button, comprising a body 100, a circuit board 300 and a toggle key 200, wherein the circuit board 300 is disposed in the body 100, and a detection component 400 is disposed on the circuit board 300, a bracket 210 is disposed on one side of the toggle key 200, so that the toggle key 200 is rotatably connected to the body 100 through the bracket 210, and the bottom of the toggle key 200 has a supporting portion 240, and the supporting portion 240 is preferably a column-shaped structure, and the supporting portion 240 is preferably a column-shaped structure. The support portion 240 is arranged corresponding to the detection component 400, and the detection component 400 is used to detect the rotation speed or rotation angle of the toggle key 200, wherein the support portion 240 at the bottom of the toggle key 200 extends into the piano body 100, and the top of the toggle key 200 is exposed from the front side of the piano body 100, so that the user can play music by plucking the top of the toggle key 200 with his fingers. The number of toggle keys 200 can be multiple, preferably two, and the two toggle keys 200 are arranged side by side.

[0037] It can be seen that the smart guitar of this embodiment has a toggle-type trigger button. The toggle key 200 is pressed by the finger to the other side to rotate the detection component 400 on the pressing circuit board 300, so that the detection component 400 generates an electrical signal, and the circuit board 300 controls the corresponding sound according to the electrical signal instruction. The detection component 400 can detect the rotation speed and rotation angle of the toggle key 200, and then control the speed, volume and weight of the smart guitar chords according to different electrical signal changes, so that different styles of music can be played. In this way, the playing practice of the smart guitar is simpler and safer, does not hurt the fingers, is easy to play the guitar for practice, and the user experience is good. It is also easy to produce and assemble, and the cost is low.

[0038] In one embodiment, if Figures 1 to 6 As shown, the toggle key 200 is tilted from one side to the other side, and the height of the other side of the toggle key 200 relative to the plane where the piano body 100 is located is greater than the height of one side of the toggle key 200 relative to the plane where the piano body 100 is located. The piano body 100 is a guitar-shaped plate-like structure, with the plane where the piano body 100 is located as a reference plane. Since the toggle key 200 is tilted, one side of the toggle key 200 is at a lower position, that is, the left side of the toggle key 200, and the other side is at a higher position, that is, the right side of the toggle key 200. In this way, it is convenient for users to play music by pressing the toggle key 200, thereby improving the comfort and feel of playing the smart guitar.

[0039] In another embodiment, Figure 7 and Figure 8 As shown, this embodiment is basically the same as the above embodiment, with the only difference being that a strip plate 250 is formed on the top of the toggle key 200 and extends along its length direction. The strip plate 250 is exposed from the piano body 100, and the strip plate 250 is inclined and extends toward the other side of the toggle key 200. The angle between the strip plate 250 and the toggle key 200 is 15 degrees to 85 degrees, and the preferred inclination angle is 30 degrees to 75 degrees. With this arrangement, the user can play music by plucking the strip plate 250, further improving the feel of playing the guitar and bringing a better user experience to the user.

[0040] Specifically, a receiving groove 110 is provided on the surface of the piano body 100, and the toggle key 200 is installed in the receiving groove 110, and the other side of the toggle key 200 protrudes from the receiving groove 110, so that the user can play the piano by plucking the key. The piano body 100 includes an upper shell and a lower shell that are interlocked with each other to form a receiving space between the upper shell and the lower shell. The receiving groove 110 is located on the front side of the upper shell, and the bottom of the receiving groove 110 is connected with the receiving space. The toggle key 200, the support part 240 and the bracket 210 are combined to form an integrated structure, so that the support part 240 and the bracket 210 are both located in the receiving space, and the toggle key 200 is received in the receiving groove 110.

[0041] Furthermore, a mounting seat 120 is provided in the piano body 100, and the bracket 210 is rotatably connected to the mounting seat 120 via a rotating shaft 220. Such a configuration enables the toggle key 200 to rotate around the rotating shaft 220, and has a simple structure, is easy to assemble, and is stable and reliable.

[0042] In this embodiment, the smart guitar also includes an elastic member 230, which is disposed between the bracket 210 and the mounting base 120, and is used to reset the rotation of the toggle key 200 to an initial position. With this arrangement, after the toggle key 200 is rotated by being plucked and pressed, the elastic force of the elastic member 230 drives the toggle key 200 to automatically reset, preparing for the next plucking and playing, thereby facilitating the user to play music.

[0043] Specifically, the bracket 210 includes two cantilever rods 211 arranged at intervals, the rotating shaft 220 is arranged between the two cantilever rods 211, the elastic member 230 is sleeved on the rotating shaft 220, and one end of the elastic member 230 is connected to the bracket 210, and the other end of the elastic member 230 is connected to the locking portion 130 in the piano body 100, the elastic member 230 is a torsion spring structure, and the two cantilever rods 211 are correspondingly provided with through holes 212, so that the rotating shaft 220 is inserted into the through holes 212 of the mounting seat 120 and the two cantilever rods 211 for rotational connection, wherein the rotating shaft 220 is a bolt structure.

[0044] Among them, the cantilever rod 211 is provided with a socket 213, one end of the elastic member 230 is inserted into the socket 213, the locking portion 130 is a slot structure, and the other end of the elastic member 230 extends into the locking portion 130. In this way, when the toggle key 200 is pressed and rotated, the elastic member 230 can accumulate elastic force. After the toggle key 200 is released, the elastic force of the elastic member 230 drives the toggle key 200 to return to its initial position.

[0045] In this embodiment, the detection component 400 includes an identification area 410 and a soft plastic part 420. The identification area 410 is arranged on the circuit board 300, the soft plastic part 420 is arranged above the identification area 410, and a sensing part is arranged at the bottom of the soft plastic part 420. The support part 240 is in contact with the soft plastic part 420, so that when the push button is turned, the soft plastic part 420 is pressed down by the support part 240 to deform, so that the identification area 410 is in contact with the sensing part for detection. The structure is simple, easy to assemble, and the processing difficulty and production cost are low.

[0046] Among them, the soft plastic part 420 is made of silicone or rubber material, so that the soft plastic part 420 can be deformed by pressing the support part 240 of the toggle key 200, so that the sensing part at the bottom of the soft plastic part 420 approaches and contacts the identification area 410 on the circuit board 300 to generate an electrical signal, and then detection is performed based on the generation and change of the electrical signal.

[0047] Specifically, the soft rubber part 420 has a bottom end, a top end and a cavity 421 extending from the bottom end to the top end. The soft rubber part 420 is roughly in the shape of an inverted bowl. The sensing part includes at least one conductive column 422. The conductive column 422 is arranged in the cavity 421. The upper end of the conductive column 422 is arranged on the top wall of the cavity 421. The lower end of the conductive column 422 is arranged corresponding to the identification area 410 on the circuit board 300, so that the detection component 400 contacts the identification area 410 through the conductive column 422 for detection. In this way, when the toggle key 200 rotates, the support part 240 presses down the soft rubber part 420 to deform the side wall of the cavity 421, so that the conductive column 422 can approach the identification area 410 and make electrical contact to generate an electrical signal. The structure is simple, the detection is relatively accurate, the tone and notes are played accurately, and the user experience is good.

[0048] Furthermore, the sensing portion includes two conductive pillars 422, and the two conductive pillars 422 are spaced apart from each other along one side of the toggle key 200 toward the other side thereof, so that the detection component 400 detects the rotation speed and rotation angle of the toggle key 200 according to the time difference between the identification area 410 and the two conductive pillars 422 in succession, wherein the rotation angle range of the toggle key 200 is roughly detected according to whether both the two conductive pillars 422 are in contact with the identification area 410 and generate electrical signals, and the detection angle corresponding to only one conductive pillar 422 being in contact and generating an electrical signal is smaller than the detection angle corresponding to both the conductive pillars 422 being in contact and generating electrical signals, and the pressing force and speed of the toggle key 200 by the user corresponds to the rotation angle and rotation speed of the toggle key 200, so that the circuit board 300 can determine the volume of the sound according to the rotation speed of the toggle key 200, thereby controlling the speed of the guitar chords and the weight of the notes, so that different styles of music can be played, making the smart guitar full of expressiveness in playing music.

[0049] Among them, the heights or lengths of the two conductive pillars 422 are different. In this way, when the toggle key 200 is rotated to different angles, the two conductive pillars 422 can respectively and successively make electrical contact with the identification area 410 on the circuit board 300. That is, each time the toggle key 200 is pressed and rotated, two electrical signals are successively generated. The circuit board 300 determines the corresponding volume or rhythm speed based on the time difference between the two electrical signals, thereby controlling the performance of music.

[0050] Optionally, at least one limiting pin 423 is provided at the bottom end of the soft rubber part 420, and a limiting hole 310 is correspondingly opened on the circuit board 300, so that the soft rubber part 420 is inserted into the limiting hole 310 through the limiting pin 423 and thus installed on the circuit board 300. The soft rubber part 420 extends circumferentially to form an extended edge 424, and the limiting pin 423 is arranged on the extended edge 424. The number of the limiting pins 423 is preferably multiple. In this way, the soft rubber part 420 is installed and positioned by plugging and matching the limiting pin 423 with the limiting hole 310. The structure is simple, easy to assemble, cost-saving, and the structure is stable and reliable.

[0051] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0052] The utility model has an intelligent guitar with a toggle-type trigger button. The toggle key 200 is pressed by a finger to the other side to rotate and press the detection component 400 on the circuit board 300, so that the detection component 400 generates an electrical signal, and the circuit board 300 controls the corresponding sound according to the electrical signal instruction. The detection component 400 can detect the rotation speed of the toggle key 200, and then control the speed, volume and weight of the chords of the intelligent guitar according to different changes in the electrical signal, so that different styles of music can be played. In this way, the playing practice of the intelligent guitar is simpler and safer, does not hurt the fingers, is easy to play the guitar for practice, and the user experience is good. It is also easy to produce and assemble, and the cost is low.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0055] It should be noted that, in the description of the present application, unless otherwise clearly specified and limited, the terms "set, connect, connect, install" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0056] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, longitudinal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; in addition, the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0057] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0059] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0060] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A smart guitar with a toggle-type trigger button, characterized in that: include: Musical instrument body (100); A circuit board (300), wherein the circuit board (300) is arranged in the piano body (100), and a detection component (400) is arranged on the circuit board (300); and A toggle key (200) is provided with a bracket (210) on one side of the toggle key (200), so that the toggle key (200) is rotatably connected to the piano body (100) through the bracket (210), and the bottom of the toggle key (200) has a supporting portion (240), the supporting portion (240) is arranged corresponding to the detection component (400), and the detection component (400) is used to detect the rotation speed or rotation angle of the toggle key (200).

2. The smart guitar with a toggle-type trigger button according to claim 1, characterized in that: The toggle key (200) is tilted from one side to the other side, and the height of the other side of the toggle key (200) relative to the plane where the piano body (100) is located is greater than the height of one side of the toggle key (200) relative to the plane where the piano body (100) is located.

3. The smart guitar with a toggle-type trigger button according to claim 2, characterized in that: A receiving groove (110) is provided on the surface of the piano body (100), the toggle key (200) is installed in the receiving groove (110), and the other side of the toggle key (200) protrudes out from the receiving groove (110).

4. The smart guitar with a toggle-type trigger button according to claim 1, characterized in that: A strip plate (250) is formed on the top of the toggle key (200) and extends protrudingly along its length direction, and the strip plate (250) is inclined toward the other side of the toggle key (200).

5. The smart guitar with a toggle-type trigger button according to claim 1, characterized in that: The piano body (100) further comprises an elastic member (230); a mounting seat (120) is arranged inside the piano body (100); the bracket (210) is rotatably connected to the mounting seat (120) via a rotating shaft (220); the elastic member (230) is arranged between the bracket (210) and the mounting seat (120); and the elastic member (230) is used to reset the rotation of the toggle key (200) to an initial position.

6. The smart guitar with a toggle-type trigger button according to claim 5, characterized in that: The bracket (210) comprises two cantilever rods (211) arranged at intervals, the rotating shaft (220) is arranged between the two cantilever rods (211), the elastic member (230) is sleeved on the rotating shaft (220), and one end of the elastic member (230) is connected to the bracket (210), and the other end of the elastic member (230) is connected to the locking portion (130) in the piano body (100).

7. The smart guitar with a toggle-type trigger button according to any one of claims 1 to 6, characterized in that: The detection component (400) comprises: an identification area (410), the identification area (410) being arranged on the circuit board (300); The soft rubber part (420) is arranged above the identification area (410), and a sensing part is arranged at the bottom of the soft rubber part (420). The support part (240) is in contact with the soft rubber part (420), so that when the toggle key (200) rotates, the support part (240) presses down the soft rubber part (420) to cause deformation, thereby making the identification area (410) contact with the sensing part for detection.

8. The smart guitar with a toggle-type trigger button according to claim 7, characterized in that: The soft plastic part (420) has a bottom end, a top end, and a chamber (421) extending from the bottom end to the top end. The sensing portion includes at least one conductive column (422). The conductive column (422) is arranged in the chamber (421) so that the detection component (400) contacts the identification area (410) through the conductive column (422) to perform detection.

9. The smart guitar with a toggle-type trigger button according to claim 8, characterized in that: The sensing portion comprises two conductive pillars (422), and the two conductive pillars (422) are arranged at intervals from one side of the toggle key (200) to the other side thereof, so that the detection component (400) detects the rotation speed of the toggle key (200) according to the time difference between the identification area (410) and the two conductive pillars (422) respectively contacting each other.

10. The smart guitar with a toggle-type trigger button according to claim 7, characterized in that: At least one limiting pin (423) is provided at the bottom end of the soft plastic part (420), and a limiting hole (310) is correspondingly provided on the circuit board (300), so that the soft plastic part (420) can be inserted into the limiting hole (310) through the limiting pin (423) and thus installed on the circuit board (300).

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