Sound equipment

Abstract

The utility model relates to the technical field of household appliances, in particular to a sound box. Comprising a shell which is provided with keys; the key circuit board is arranged in the shell; the fireproof cover is arranged in the shell, and a limiting groove is formed in the fireproof cover; the elastic conductive part is arranged in the limiting groove, one side of the elastic conductive part is electrically connected with the key, and the other side of the elastic conductive part is electrically connected with the key circuit board. According to the sound box provided by the embodiment of the invention, the elastic conductive part is adopted to transmit the pressure change on the key to the key circuit board in the form of an electric signal through the elastic conductive part, so that the mounting structure of the capacitor key is simplified. The elastic conductive part is limited and fixed through the limiting groove in the fireproof cover, the position deviation of the elastic conductive part is avoided, the electric connection between the key and the key circuit board is realized through the elastic conductive part, the key circuit board does not need to be redesigned even if the number and the size of keys of sound boxes of different models are different, and the cost is reduced. And the universality is high.

Description

Technical Field

[0001] This application relates to the field of display audio, and particularly to an audio device. Background Art

[0002] With the progress of society, people aspire to a more colorful life. As a form of entertainment that has been passed down for thousands of years, singing and dancing have penetrated into the lives of people of all ethnic groups. However, with the development and progress of technology, people have more and more and higher requirements for the performance forms and venues of singing and dancing. The audio system has been continuously improved and perfected to meet people's needs. It can meet the needs of live sound reinforcement for tens of thousands of people at large concerts, and also meet the needs of individuals for playing musical instruments and singing karaoke at home.

[0003] The structure of the audio device generally uses capacitive buttons to control volume, playback progress, etc. The capacitive buttons are usually assembled by bonding, and in larger structures, they are also fixed by screws or other means. This installation method usually requires re-designing the circuit board according to different design requirements. On the other hand, the installation of the circuit board often requires manual positioning, and the button circuit board and the control circuit board often need to be fixed by internal wires or slots, which further reduces the material generalization. Summary of the Utility Model

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, this application provides an audio device.

[0005] This application provides an audio device, including:

[0006] A housing, on which buttons are provided;

[0007] A button circuit board, disposed inside the housing;

[0008] A fireproof cover, disposed inside the housing, and a limiting groove is provided on the fireproof cover;

[0009] An elastic conductive member, the elastic conductive member is disposed in the limiting groove, and one side of the elastic conductive member is electrically connected to the button, and the other side is electrically connected to the button circuit board.

[0010] In some embodiments, the buttons are provided on the first side surface of the housing, and the button circuit board is perpendicular to the first side surface.

[0011] In some embodiments, the buttons are provided on the first side surface of the housing, and the button circuit board is arranged parallel to the first side surface.

[0012] In some embodiments, the number of the buttons is multiple, and the number of the elastic conductive members is equal to the number of the buttons and is correspondingly arranged.

[0013] In some embodiments, a plurality of elastic conductive members are arranged at intervals.

[0014] In some embodiments, the elastic conductive member includes conductive sponge or conductive rubber.

[0015] In some embodiments, one side of the fireproof cover is open, and the key circuit board is arranged at the open part of the fireproof cover, covering at least part of the open part.

[0016] In some embodiments, a power supply circuit board and a plug-in circuit board are further included. The power supply circuit board is arranged in the fireproof cover. The plug-in circuit board is arranged side by side with the key circuit board, and the plug-in circuit board is electrically connected to the power supply circuit board through a plug-in structure.

[0017] In some embodiments, at the open part of the fireproof cover, a first plug-in board and a limiting board are protruded outwards. The first plug-in board is arranged along a direction parallel to the first side surface. The number of the limiting boards is two, and the two limiting boards are perpendicular to the first plug-in board and are located at both ends of the first plug-in board. At a position corresponding to the first plug-in board on the key circuit board, a plug-in hole for the first plug-in board to pass through is provided. The first plug-in board, the two limiting boards and the key circuit board jointly define the limiting groove. One side surface of the elastic conductive member is electrically connected to the key circuit board.

[0018] In some embodiments, at one end of the key circuit board opposite to the first side surface, a connecting board is protruded towards the direction close to the first side surface. The two limiting boards are respectively arranged on both sides of the connecting board, and the elastic conductive member is fixedly attached to the connecting board.

[0019] The technical solutions provided by some embodiments of the present application have the following advantages compared with the prior art:

[0020] For the audio devices provided by some embodiments of the present application, when a button is pressed, the elastic conductive member is squeezed, causing a signal change in the button circuit board. The button circuit board is connected to the control component of the audio device. After the control component senses the signal change on the button circuit board, it issues a control signal to control the increase or decrease of the volume, fast forward, rewind, turn on or turn off the audio device. For the audio devices provided by some embodiments of the present application, an elastic conductive member is used to connect between the button and the button circuit board, and the pressure change on the button is transmitted to the button circuit board in the form of an electrical signal through the elastic conductive member, and then the audio device is controlled according to the pressure change on the button, which simplifies the installation structure of the capacitive button. The elastic conductive member is limited and fixed through the limiting groove on the fireproof cover, avoiding the deviation of the position of the elastic conductive member, and realizing the electrical connection between the button and the button circuit board through the elastic conductive member. Even if the number and size of the buttons of different models of audio devices are different, it is not necessary to redesign the button circuit board, and only the number, size and position of the elastic conductive members need to be adjusted, which is applicable to different models of audio devices and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0022] To more clearly illustrate the technical solutions in some embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the audio device according to some embodiments of the present application;

[0024] Figure 2 It is a rear view of the audio device according to some embodiments of the present application;

[0025] Figure 3 It is a schematic structural diagram of the power supply component according to some embodiments of the present application;

[0026] Figure 4 It is a side view of the power supply component according to some embodiments of the present application;

[0027] Figure 5 It is a schematic structural diagram of the second circuit board and the second plug-in structure according to some embodiments of the present application;

[0028] Figure 6 is Figure 5 a partial enlarged view of point A in

[0029] Figure 7The top view of the second circuit board and the second plugging structure according to some embodiments of the present application;

[0030] Figure 8 The schematic structural diagram of the second plugging structure according to some embodiments of the present application;

[0031] Figure 9 The schematic structural diagram of the first circuit board, the tongue, the power plug and the external power cord according to some embodiments of the present application;

[0032] Figure 10 is Figure 9 Another perspective schematic diagram of the corresponding structure;

[0033] Figure 11 The schematic installation structure diagram of the power supply component according to some embodiments of the present application;

[0034] Figure 12 The exploded view of the installation structure of the power supply component according to some embodiments of the present application;

[0035] Figure 13 The schematic assembly structure diagram of the fireproof cover, the button circuit board, the elastic conductive member and the protective cover according to some embodiments of the present application;

[0036] Figure 14 The schematic assembly structure diagram of the fireproof cover, the button circuit board, the elastic conductive member and the primary power supply component according to some embodiments of the present application;

[0037] Figure 15 The schematic structural diagram of the button circuit board according to some embodiments of the present application;

[0038] Figure 16 The schematic structural diagram of the fireproof cover according to some embodiments of the present application.

[0039] Wherein, 1, the first circuit board; 2, the second circuit board; 3, the external power cord; 4, the fireproof cover; 5, the isolation cover; 6, the button circuit board; 7, the elastic conductive member; 10, the tongue; 101, the second welding foot; 11, the power plug; 111, the second welding foot; 112, the plug interface; 20, the second plugging structure; 21, the plugging channel; 201, the plugging and mating part; 202, the first welding foot; 203, the elastic part; 204, the fixing member; 100, the housing; 100a, the first side; 100b, the button; 401, the first plugging board; 402, the limiting board; 403, the first fixing hole; 404, the second fixing hole; 601, the connecting board; 602, the plugging hole. Detailed implementation manners

[0040] In order to more clearly understand the above-mentioned objects, features, and advantages of the present application, the solutions of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0041] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present application, rather than all of the embodiments.

[0042] It should be noted that the directional indications (such as up, down, left, right, front, back...) in the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0043] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0044] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, when describing pipelines, the "connected" and "coupled" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0045] In a traditional audio structure, capacitive buttons are generally used to control volume, playback progress, etc. Capacitive buttons are usually assembled by bonding. In a larger audio structure, screws or other methods are usually used to fix the capacitive buttons. This installation method requires re-designing the circuit board according to different design requirements; on the other hand, the installation of the circuit board often requires manual positioning, and internal wires or slots are also needed to fix between the button circuit board and the control circuit board, further reducing the material versatility.

[0046] As Figure 1 、 Figures 13 to 16 shown, to solve the above technical problems, some embodiments of the present application provide an audio, including:

[0047] The housing 100 is provided with a button 100b thereon. The housing 100 is the outer shell of the sound box, which plays a role in decoration and protection.

[0048] The sound box further includes a button circuit board 6, which is arranged inside the housing 100 and is correspondingly arranged with the button 100b, and is used for receiving the capacitance change signal formed by the pressure change on the button.

[0049] The sound box further includes a fireproof cover, which is arranged inside the housing, and the fireproof cover is provided with a limiting groove. The fireproof cover is a structure that the traditional sound box already has, and its main function is to protect the control components, power circuit boards and other structures inside the speaker.

[0050] The sound box further includes an elastic conductive member 7, which is arranged in the limiting groove. The limiting groove limits and fixes the elastic guiding member to prevent the position of the elastic conductive member from shifting during use; one side of the elastic conductive member 7 is attached to the button 100b to realize the electrical connection between the elastic conductive member and the button, and the other side is attached to the button circuit board 6 to realize the electrical connection between the elastic guiding member and the button circuit board. The elastic conductive member 7 transmits the pressure change on the button to the button circuit board 6 through the elastic conductive member 7.

[0051] When the button 100b is pressed, the elastic conductive member 7 is squeezed, causing a signal change on the button circuit board 6. The button circuit board 6 is connected to the control component of the sound box. After the control component senses the signal change on the button circuit board 6, it issues a control signal to control the increase or decrease of the volume, fast forward, rewind, turn on or turn off the sound box. For the sound box provided by some embodiments of the present application, the elastic conductive member 7 is used to connect between the button 100b and the button circuit board 6, and the pressure change on the button 100b is transmitted to the button circuit board 6 in the form of an electrical signal through the elastic conductive member 7, and then the sound box is controlled according to the pressure change on the button 100b, which simplifies the installation structure of the capacitive button. The elastic conductive member is limited and fixed through the limiting groove on the fireproof cover, avoiding the position deviation of the elastic conductive member, and the electrical connection between the button and the button circuit board is realized through the elastic conductive member. Even if the number and size of the buttons of different models of sound boxes are different, it is not necessary to redesign the button circuit board, and only the number, size and position of the elastic conductive member need to be adjusted, which is applicable to different models of sound boxes and has high versatility.

[0052] In some embodiments, a button is provided on the first side 100a of the housing 100, and the button circuit board 6 is arranged perpendicular or parallel to the first side 100a. Specifically, the first side of the housing 100 is preferably the upper side of the housing 100, and the button circuit board 6 is arranged perpendicular or parallel to the first side 100a, and at least two side surfaces of the elastic conductive member 7 are required to be conductive.

[0053] Exemplarily, when the key circuit board 6 is vertically arranged with respect to the first side surface 100a of the housing 100 and is parallel to the front or rear side surface of the housing 100, the upper side surface of the elastic conductive member 7 is attached to the key, and the front or rear side surface of the elastic conductive member 7 is attached and fixed to the key circuit board 6; when the key circuit board 6 is parallel to the first side surface 100a, the upper side surface of the elastic conductive member 7 is attached to the key, and the lower side surface of the elastic conductive member 7 is attached and fixed to the key circuit board 6.

[0054] In some embodiments of the present application, the number of keys 100b is multiple, and the number of elastic conductive members 7 is equal to and correspondingly arranged one by one with the number of keys 100b. The key 100b is a capacitive touch key used to detect effective touches of fingers, achieving a function similar to that of a touch key by touching a capacitive screen. Compared with traditional mechanical keys, it has many advantages such as long service life, less occupied space, and easy operation.

[0055] When not touched, there is only one capacitor inside the key 100b. First, it is discharged and then charged, and the time T1 required for charging is measured through input capture (or other methods). When touched, another capacitor is equivalently connected in parallel inside the key, the total capacitance increases, and the charging time is extended. By measuring the charging time T2 at this time, if T2 > T1, it means it has been touched. That is, the control system determines whether there is a touch by detecting the charging and discharging time of the capacitor, and then performs corresponding control.

[0056] Multiple keys 100b are electrically connected to the key circuit board 6 through separate elastic conductive members 7 to achieve independent control of multiple keys 100b.

[0057] In some embodiments of the present application, multiple elastic conductive members 7 are arranged at intervals, and adjacent elastic conductive members 7 are spaced from each other, achieving insulation between them to avoid mutual influence between adjacent elastic conductive members 7.

[0058] In some embodiments of the present application, the elastic conductive member 7 includes conductive sponge or conductive rubber. Taking the conductive sponge as an example, its structure is that a sponge is arranged inside a metal wire mesh to form a conductive sponge, which is also an antistatic conductive material commonly used in household appliances and has a low cost; the key circuit board 6 and the first side surface can be parallel or perpendicular, and they may not be in contact at all, or may be in contact through a structure for fixing the circuit board.

[0059] In some embodiments of the present application, one side of the fireproof cover 4 is open, and the key circuit board 6 is arranged at the open part of the fireproof cover 4, covering at least part of the opening. The fireproof cover 4 is a structure that already exists in the audio. In some embodiments of the present application, the limiting groove on the fireproof cover 4 serves to fixedly install the key circuit board 6.

[0060] In some embodiments, the audio also includes a power circuit board and a plug-in circuit board. The power circuit board is disposed within the fireproof cover 4. The plug-in circuit board is arranged side by side with the button circuit board 6 at the open end of the fireproof cover 4. The plug-in circuit board is electrically connected to the power circuit board through a plug-in structure. The plug-in structure includes a mating tongue 10 and a plug-in channel formed by a plug-in mating portion 201.

[0061] Exemplarily, the button circuit board 6 is disposed on the left side of the open end, and the plug-in circuit board is disposed on the right side. Moreover, a plurality of second fixing holes 404 are provided on the left side of the open end, and a plurality of first fixing holes 403 are provided on the right side. The first fixing holes 403 are used for installing the protective cover, and the second fixing holes 404 are used for fixedly installing the button circuit board 6.

[0062] In some embodiments of the present application, at the open end of the fireproof cover 4, a first plug-in board 401 and a limiting board 402 protrude outward. The first plug-in board 401 is arranged in a direction parallel to the first side surface. The number of the limiting boards 402 is two. The two limiting boards 402 are perpendicular to the first plug-in board 401 and are located at both ends of the first plug-in board 401. At a position corresponding to the first plug-in board 401 on the button circuit board 6, a plug-in hole 602 for the first plug-in board 401 to pass through is provided. The elastic conductive member 7 is disposed in a limiting groove formed by the first plug-in board 401 and the two limiting boards 402 and is fixedly attached to the button circuit board 6 to achieve electrical connection with the button circuit board 6.

[0063] In some embodiments, at one end of the button circuit board 6 opposite to the first side surface, a connecting board 601 protrudes in a direction close to the first side surface. The two limiting boards 402 are respectively disposed on both sides of the connecting board 601. The elastic conductive member 7 is fixedly attached to the connecting board 601.

[0064] Exemplarily, the elastic conductive member 7 is limited by a limiting groove jointly formed by the two limiting boards 402, one first plug-in board 401, and the connecting board 601. When fixing the elastic conductive member 7, an adhesive can be applied between the elastic conductive member 7 and the first plug-in board 401 to enhance the fixing effect of the elastic conductive member 7.

[0065] In actual production, the button circuit board 6 can first be mated with the plug-in board on the fireproof cover 4, and then the elastic conductive member 7 is fixed in the card slot by pasting or other fixing methods. Then, it is mated with the button 100b on the first housing 100 according to the required contact method. By this method, the vertical installation of the button circuit board 6 with respect to the first side surface can be achieved, which not only reduces the cost but also optimizes the flexibility of the product appearance design.

[0066] In the audio structure, the externally connected power cord is plugged and fixed to the exposed power plug of the audio in a plugging manner. In the traditional audio structure, the power plug is arranged perpendicular to the power board inside the audio, and the inner end of the power plug is fixed to the power board by soldering. Due to the material limitation of the solder, it is easy to be damaged under the repeated plugging and unplugging of the external power cord and the power plug or high temperature / voltage impact; since the mains power (110V / 220V) belongs to a strong electrical interface, when the connection between the power plug and the power board becomes loose, sudden voltage changes are likely to occur, resulting in instantaneous high temperature or electric sparks, which can cause damage to the machine at least and endanger life and property at worst.

[0067] To solve the above technical problems, some embodiments of the present application provide a power supply component for an audio, which realizes the electrical connection between the power plug and the inside of the audio by means of the cooperation of a plug tongue and a plugging channel formed by a plugging and mating part, reducing the safety risks caused by the shedding of solder due to plugging and unplugging.

[0068] Among them, in any one of the techniques of some embodiments of the present application, one or more of the above technical problems can be solved to a certain extent and certain invention purposes can be achieved; multiple technical disclosures can also be combined into an overall solution to solve one or more of the above technical problems and achieve certain invention purposes; part of the technical disclosures can also be selected and combined into an overall solution, while adopting the prior art and deteriorated solutions, but the deteriorated trend can be compensated by the means of the present technical disclosure, and one or more of the above technical problems can be solved to a certain extent and certain invention purposes can be achieved overall; each technical disclosure is combined into a complete technical solution, all of which constitute an organic and inseparable overall solution, solving the above technical problems and achieving certain invention purposes overall.

[0069] In any technical disclosure of some embodiments of the present application, as well as the re - combination of multiple technical disclosures, a complete technical solution can be formed, and one or more of the above multiple technical problems can be solved, achieving the invention purpose, all of which belong to the content of the present application and the content directly and undoubtedly determined according to the content of the present application.

[0070] Specifically, as Figures 1 to 12 shown, some embodiments of the present application provide a power supply component for an audio, including:

[0071] A first circuit board 1, on which a first plugging structure is provided.

[0072] In some embodiments, the power supply component of the audio includes a second circuit board 2, on which a second plugging structure 20 that is plugged and mated with the first plugging structure is provided.

[0073] In some embodiments, the power supply component of the audio includes a power plug 11, which is provided on the first circuit board 1 or the second circuit board 2, and the power plug 11 has a jack 112 for connecting to an external power cord 3.

[0074] In some embodiments, the first plugging structure includes a plug tongue 10, and the second plugging structure 20 includes a plurality of plugging and mating parts 201. The plurality of plugging and mating parts 201 jointly enclose a plugging channel 21, and the plug tongue 10 is inserted into the plugging channel 21 from the direction close to the plugging and mating parts 201.

[0075] Exemplarily, the inner end of the power plug 11 is located inside the housing 4 and is fixedly connected to the first circuit board 1 or the second circuit board 2, and the jack 112 is located outside the housing 100. In some embodiments of the present application, the first circuit board 1 is a plugging circuit board, the second circuit board 2 is a power supply circuit board, the power plug 11 is fixedly connected to the first circuit board 1, and the power plug 11 is electrically connected to the second circuit board 2 through the first circuit board 1, the plug tongue 10 and the plugging and mating parts 201. When the external power cord 3 is repeatedly plugged and unplugged from the power plug 11, since the plug tongue 10 is fixedly plugged into the plugging channel 21 formed by the plurality of plugging and mating parts 201, the contact area between the plug tongue 10 and the plugging and mating parts 201 is relatively large. Even if the plug tongue 10 and the plugging and mating parts 201 shake due to repeated plugging and unplugging, it does not affect the stability of their connection relationship, avoiding sudden changes in voltage caused by the instability of their connection structure and reducing the risk of fire.

[0076] The number of the first plugging structure and the second plugging structure 20 is equal, and the number of the first plugging structure is one or more. For example Figure 3 as shown, in some embodiments of the present application, the number of both the first plugging structure and the second plugging structure 20 is two.

[0077] In some embodiments of the present application, the first circuit board 1 and the second circuit board 2 can be arranged in parallel or perpendicular to each other.

[0078] Exemplarily, in combination with Figure 3 and Figure 4As shown, in some embodiments of the present application, the first circuit board 1 is vertically arranged with respect to the second circuit board 2. The first circuit board 1 is located on one side of the second circuit board 2. The tongue 10 is arranged in a direction perpendicular to the first circuit board 1. A plurality of plug-in mating parts 201 are arranged on one side surface in the thickness direction of the second circuit board 2. The length direction of the plug-in channel 21 formed between the plurality of plug-in mating parts 201 is parallel to the second circuit board 2. The tongue 10 is inserted into the plug-in channel 21 along the length direction of the plug-in channel 21. The orientation of the plug-in interface 112 on the power plug 11 is consistent with the length direction of the tongue 10. Therefore, the plug-in direction of the external power cord 3 with respect to the power plug 11 is the same as the plug-in direction of the tongue 10 with respect to the plug-in channel 21. Moreover, because the plug-in channel 21 has a certain length, even if repeated plugging and unplugging of the external power cord 3 causes the position of the first circuit board 1 to shake and drives the tongue 10 to have a relative displacement within the plug-in channel 21, the tongue 10 and the plug-in mating part 201 are always in contact, that is, the first circuit board 1 is always electrically connected to the second circuit board 2, improving the stability of the connection structure.

[0079] Exemplarily, in some other embodiments of the present application, the first circuit board 1 is arranged parallel to the second circuit board 2. The length direction of the plug-in channel 21 formed by the plurality of plug-in mating parts 201 is perpendicular to the second circuit board 2. The tongue 10 is arranged perpendicular to the first circuit board 1. The first circuit board 1 and the second circuit board 2 approach each other so that the tongue 10 is inserted into the plug-in channel 21.

[0080] Regardless of whether the first circuit board 1 is vertically arranged or parallel to the second circuit board 2, the plug-in direction of the plug-in interface 112 on the power plug 11 is the same as the plug-in direction of the tongue 10 and the plug-in channel 21.

[0081] Combined with Figures 6 to 8 As shown, in some embodiments of the present application, the plug-in mating part 201 includes a plug-in piece and a first welding leg 202. The first welding leg 202 is arranged on the side of the plug-in piece close to the second circuit board 2 and is fixedly welded to the second circuit board 2. One end of the plug-in piece is bent towards one side in the thickness direction to form an elastic part 203. The plug-in channel 21 is formed between the elastic parts 203 of the plurality of plug-in mating parts 201. Exemplarily, the plug-in piece is an elastic spring piece. The elastic spring piece bent towards one side in the thickness direction can form an elastic part with a certain elastic variable.

[0082] In some embodiments, the insertion piece is a thin sheet structure made of a conductive material. The thin sheet structure is a rectangular structure, and the length direction and the width direction of the thin sheet structure are both perpendicular to the second circuit board 2, and the thickness direction of the thin sheet structure is parallel to the second circuit board 2. A first welding leg 202 is formed on one side of the thin sheet structure along the length direction or one side of the width direction. The first welding leg 202 is used for welding and fixing with the second circuit board 2. One end of the thin sheet structure along the length direction is bent towards one side in the thickness direction to form an elastic part 203. The elastic part 203 is parallel to the length direction of the thin sheet structure. The shape of the elastic part 203 is U-shaped or V-shaped. A plurality of insertion and mating parts 201 are arranged around a center line. The center line is parallel to the length direction of the insertion and mating parts 201. The ends of the plurality of insertion and mating parts 201 are all bent towards the direction close to the center line to form an insertion channel 21 between the plurality of elastic parts 203.

[0083] The elastic part 203 has a certain amount of elastic deformation. When subjected to an external force, it can undergo a certain amount of elastic deformation, and thus can change the size of the cross-section of the insertion channel 21. Specifically, in some embodiments of the present application, the size of the cross-section of the insertion channel 21 formed between the elastic parts 203 of the plurality of insertion and mating parts 201 is slightly smaller than the size of the cross-section of the insertion tongue 10 in the natural state. In this way, after the insertion tongue 10 is inserted into the insertion channel 21, it will exert a certain extrusion on the elastic part 203, and the elastic part 203 will elastically deform in the direction away from the insertion tongue 10. Due to the elastic deformation, the elastic part 203 exerts a certain extrusion force on the insertion tongue 10, improving the connection strength between the insertion tongue 10 and the insertion and mating part 201.

[0084] After the insertion tongue 10 is inserted into the insertion channel 21 in place, the end of the insertion tongue 10 far from the first circuit board 1 extends beyond the end of the elastic part 203. That is to say, the end of the elastic part 203 abuts against the outer surface of the insertion tongue 10. When the external power cord 3 is repeatedly plugged and unplugged with the power plug 11, resulting in loosening of the connection between the insertion tongue 10 and the insertion channel 21, even if there is a tendency for the insertion tongue 10 and the insertion channel 21 to move away from each other, the insertion tongue 10 can still make good contact with the insertion and mating part 201 to achieve electrical connection, avoiding the phenomenon of sudden voltage mutation caused by their sudden separation.

[0085] The end of the elastic part 203 is inclined towards the side close to the insertion piece, so that the bottom end of the insertion channel 21 forms a gradually opening structure. On the one hand, it is convenient for the insertion tongue 10 to pass through the insertion channel 21. On the other hand, when plugging and unplugging with force, it is ensured that the insertion tongue 10 and the insertion channel 21 can move, avoiding loosening at the connection between the insertion tongue 10 and the first circuit board 1.

[0086] Exemplarily, such as Figure 6 and Figure 8As shown, in some embodiments of the present application, the first welding pin 202 is located on one side in the width direction of the plug-in mating portion 201 and is arranged near one end in the length direction of the plug-in mating portion 201. A first welding hole is provided on the second circuit board 2, and the first welding hole penetrates through the thickness direction of the second circuit board 2. The first welding pin 202 passes through the first welding hole and is fixedly welded to the second circuit board 2. The root of the first welding pin 202 is widened so that after the first welding pin 202 is welded to the second circuit board 2, there is a certain gap between the plug-in mating portion 201 and the second circuit board 2, avoiding contact between other positions of the plug-in mating portion 201 except the first welding pin 202 and the second circuit board 2, which may cause a short circuit phenomenon.

[0087] At least a part of the elastic portion 203 of the plug-in mating portion 201 extends out of the second circuit board 2. When the plug tongue 10 is inserted into the plug-in channel 21, there is also a certain gap between the plug tongue 10 and the second circuit board 2, avoiding contact with the second circuit board 2 and causing a short circuit phenomenon, further improving the safety of the connection structure.

[0088] Similarly, in some other embodiments of the present application, the first welding pin 202 may also be located on one side in the length direction of the plug-in mating portion 201. The length direction of the plug-in mating portion 201 is perpendicular to the second circuit board 2, and the width direction and thickness direction of the plug-in mating portion 201 are both parallel to the second circuit board 2. The plug-in mating portion 201 is fixedly welded to the second circuit board 2 through the first welding pin 202 and the first welding hole on the second circuit board 2. The elastic portion 203 is located at one end of the plug-in mating portion 201 away from the second circuit board 2, and the plug tongue 10 is inserted into the plug-in channel 21 along the direction close to the second circuit board 2.

[0089] In some embodiments of the present application, the number of the plug-in mating portions 201 is two, and the elastic portions 203 of the two plug-in mating portions 201 are arranged oppositely.

[0090] In some embodiments, the number of the plug-in mating portions 201 and the arrangement manner among multiple plug-in mating portions 201 are related to the relative position between a single plug-in mating portion 201 and the second circuit board 2.

[0091] When the first welding pin 202 is located on one side in the width direction of the plug-in piece, the number of the plug-in mating portions 201 is two, and the two plug-in mating portions 201 are arranged oppositely. An insertion channel 21 is formed between the elastic portions 203 of the two plug-in mating portions 201.

[0092] When the first welding pin 202 is located on one side in the length direction of the plug-in piece, the number of the plug-in mating portions 201 can be two, three or more, and an insertion channel 21 is formed between the elastic portions 203 of the multiple plug-in mating portions 201.

[0093] In some embodiments of the present application, the insertion tongue 10 includes a plugging portion and a second welding pin 101. The plugging portion of the insertion tongue 10 is within the plugging channel 21, and the second welding pin 101 is fixedly welded to the first circuit board 1.

[0094] In some embodiments, the length direction of the insertion tongue 10 is perpendicular to the first circuit board 1. The second welding pin 101 is disposed at one end of the plugging portion along the length direction, and the second welding pin 101 extends along the length direction of the plugging portion. The first circuit board 1 is provided with a second welding hole that penetrates the first circuit board 1 along the thickness direction of the first circuit board 1. The second welding pin 101 passes through the second welding hole and is fixedly welded to the first circuit board 1.

[0095] The root of the plugging portion is designed to be widened to avoid the risk of short circuit caused by the contact between the plugging and mating portion 201 and the first circuit board 1 when the insertion tongue 10 is plugged and mated with the plugging channel 21.

[0096] In some embodiments of the present application, the power plug 11 and the insertion tongue 10 are located on the same side of the first circuit board 1, and the power plug 11 is fixedly welded to the first circuit board 1 through a third welding pin.

[0097] In some embodiments, the third welding pin is located at one end of the power plug 11 away from the plug interface 112. The number of the third welding pins is three. Three corresponding third welding holes are provided on the first circuit board 1. The third welding holes penetrate the first circuit board 1 along the thickness direction. The third welding pins pass through the third welding holes one by one and are fixedly welded to the first circuit board 1.

[0098] The power plug 11 can be disposed on the same side of the first circuit board 1 as the insertion tongue 10, or can be disposed on different sides of the first circuit board 1.

[0099] In some embodiments of the present application, the second plugging structure 20 further includes a fixing member 204. The fixing member 204 is connected between a plurality of plugging and mating portions 201 to fixedly connect the plurality of plugging and mating portions 201.

[0100] Exemplarily, in some embodiments of the present application, the number of the plugging and mating portions 201 is two. The two plugging and mating portions 201 are fixedly connected through the fixing member 204. Specifically, one end of the fixing member 204 is connected to one plugging and mating portion 201, and the other end is connected to the other plugging and mating portion 201. The fixing member 204 provides a certain pulling force for the two plugging and mating portions 201, and thus provides a certain pre-tightening force for the two elastic portions 203, ensuring that the two elastic portions 203 can have a certain binding force on the insertion tongue 10.

[0101] When the number of the plug-in matching parts 201 is greater than two, any two adjacent plug-in matching parts 201 are connected by the fixing member 204. The fixing member 204 connects a plurality of plug-in matching parts 201 together, provides a certain pulling force for the plurality of plug-in matching parts 201, and further provides a certain pre-tightening force for the plurality of elastic parts 203, ensuring that the plurality of elastic parts 203 can have a certain binding force on the plug tongue 10.

[0102] The fixing member 204 is made of the same material as the plug-in matching part 201. Specifically, the fixing piece and the plug-in matching part 201 are formed by cutting and bending a piece of plate.

[0103] In some embodiments of the present application, the fixing member 204 is arched and does not interfere with the elastic part 203.

[0104] Exemplarily, when the number of the plug-in matching parts 201 is two, the fixing member 204 is located on the side of the plug-in matching part 201 away from the second circuit board 2, and the fixing member 204 arches away from the plug-in matching part 201 to prevent the plug tongue 10 from contacting the fixing member 204 when being plugged and matched with the plugging channel 21.

[0105] In some embodiments of the present application, both the first circuit board 1 and the second circuit board 2 are located in the fireproof cover 4. The power supply assembly of the audio further includes an isolation cover 5. The isolation cover 5 covers the outside of the first circuit board 1 to shield the first circuit board 1, avoiding the connection structure between the first circuit board 1 and the second circuit board 2 being exposed outside, isolating the high-voltage structure, and providing more protection for the safety of maintenance personnel.

[0106] In some embodiments, the isolation cover 5 is fixedly connected to the fireproof cover. The isolation cover 5 and the fireproof cover 4 jointly enclose a small cavity. The first circuit board 1, the plug tongue 10 and the plug-in matching part 201 are all separated in the cavity to prevent the high-voltage part from contacting the human body. The isolation cover 5 is fixedly connected to the fireproof cover 4 through the first fixing hole 401 on the fireproof cover.

[0107] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sound system, characterized in that: include: A housing, wherein buttons are provided on the housing; A key circuit board is arranged in the housing; A fireproof cover is arranged in the shell, and a limiting groove is provided on the fireproof cover; An elastic conductive member is arranged in the limiting groove, and one side of the elastic conductive member is electrically connected to the key, and the other side of the elastic conductive member is electrically connected to the key circuit board.

2. The sound system according to claim 1, characterized in that: The button is arranged on the first side surface of the housing, and the button circuit board is perpendicular to the first side surface.

3. The sound system according to claim 1, characterized in that: The button is arranged on the first side surface of the housing, and the button circuit board is arranged parallel to the first side surface.

4. The sound system according to claim 2, characterized in that: The number of the keys is multiple, and the number of the elastic conductive members is equal to the number of the keys and is arranged correspondingly.

5. The sound system according to claim 4, characterized in that: A plurality of elastic conductive members are arranged at intervals.

6. The sound system according to claim 1, characterized in that: The elastic conductive member includes conductive sponge or conductive rubber.

7. The sound system according to claim 2, characterized in that: One side of the fireproof cover is open, and the key circuit board is arranged at the open portion of the fireproof cover to cover at least a portion of the open portion.

8. The sound system according to claim 7, characterized in that: It also includes a power circuit board and a plug-in circuit board. The power circuit board is arranged in the fireproof cover. The plug-in circuit board and the key circuit board are arranged side by side, and the plug-in circuit board and the power circuit board are electrically connected through a plug-in structure.

9. The sound system according to claim 8, characterized in that: The open part of the fireproof cover protrudes outward to form a first plug-in board and a limit plate, the first plug-in board is arranged in a direction parallel to the first side surface, there are two limit plates, and the two limit plates are perpendicular to the first plug-in board and located at both ends of the first plug-in board; the position of the key circuit board corresponding to the first plug-in board is provided with a plug-in hole for the first plug-in board to pass through, the first plug-in board, the two limit plates and the key circuit board jointly define the limit groove; one side of the elastic conductive part is electrically connected to the key circuit board.

10. The sound system according to claim 9, characterized in that: One end of the key circuit board opposite to the first side protrudes toward the first side to form a connecting plate, the two limit plates are arranged on both sides of the connecting plate, and one side of the elastic conductive part is electrically connected to the connecting plate.

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