Hand microphone

Abstract

The utility model provides a hand microphone, which comprises a front shell, a rear shell, a horn holder, a horn, a bonding layer, a circuit board, a fastening mechanism and a liquid crystal mechanism, the fastening mechanism is arranged between the front shell and the rear shell to fasten the front shell and the rear shell, the lower part of the front shell is provided with a keyboard, the middle upper part is provided with a display hole, and the front shell and the rear shell are fastened to form an installation space. The circuit board is arranged in the installation space, the loudspeaker frame is arranged on the circuit board and located behind the keyboard, a through hole is formed in the loudspeaker frame, the loudspeaker is fixed to the loudspeaker frame through a bonding layer, and the bonding layer enables the loudspeaker to be further bonded to the circuit board through the through hole. The liquid crystal display screen is arranged in the installation space through the liquid crystal frame and corresponds to the position of the display hole. According to the utility model, the size of the screen is larger, the loudspeaker installation is firmer and simpler, and the appearance is more beautiful.

Description

Technical Field

[0001] The utility model relates to a hand microphone. Background Art

[0002] A hand microphone is a two-way mobile communication tool. It can be used for calls without any network support, and no phone charges are generated. It is suitable for relatively fixed and frequent calls. The panel generally includes a face shell, a circuit board, an aluminum shell and a battery, as well as a PTT button, a power jack plug, a display screen, a volume / switch button, a coding knob, an indicator light, a microphone, a speaker, etc. The PTT button acts as a transmitter switch and is generally located on the side of the walkie-talkie. The indicator light indicates the working status and is generally located on the top of the walkie-talkie. There are also a volume / switch button and a coding knob (channel selection) on the top of the walkie-talkie. The display screen intuitively displays the working status of the walkie-talkie. The mainboard is the core part of the walkie-talkie, and all important components are on the mainboard. The front side of the aluminum shell is used to fix the mainboard, the display screen is installed in the middle of the front side of the mainboard, and the speaker is installed on the rear side of the face shell and is electrically connected to the corresponding part of the mainboard through wires. The rear side of the aluminum shell has a storage slot for installing batteries.

[0003] However, the microphones mentioned above have the following defects: first, the screen size is usually limited, and the viewing angle is restricted when in use; second, the speaker installation method is also more complicated, and the buttons and external interfaces have different degrees of inward destructive force from the outside during long-term use, which makes the buttons and external interfaces prone to failure; finally, the installation of the face shell and the aluminum shell usually requires the use of screws, and the appearance is not beautiful enough. Utility Model Content

[0004] The utility model provides a handheld microphone with a larger screen size, a more firm and simple speaker installation, and a more beautiful appearance.

[0005] The utility model is realized by the following technical solutions:

[0006] A microphone comprises a front shell, a rear shell, a speaker rack, a speaker, an adhesive layer, a circuit board, a fastening mechanism and a liquid crystal mechanism, wherein the fastening mechanism is arranged between the front shell and the rear shell so that the front shell and the rear shell are fastened, the lower part of the front shell has a keyboard, the middle and upper part is a display hole, and the front shell and the rear shell are fastened to form an installation space, the circuit board is arranged in the installation space, the speaker rack is arranged on the circuit board and is located behind the keyboard, the speaker rack has a through hole, the speaker is fixed on the speaker rack through the adhesive layer, and the adhesive layer makes the speaker also adhere to the circuit board through the through hole, and the liquid crystal mechanism comprises a liquid crystal frame and a liquid crystal display screen, and the liquid crystal display screen is arranged in the installation space through the liquid crystal frame and corresponds to the position of the display hole. By arranging the speaker rack, the installation of the speaker is more firm and simple, and the adhesive layer makes the speaker, the speaker rack and the circuit board adhere to each other through the through hole, which can effectively avoid the loss of sound and the sound distortion caused by resonance, and achieve good sound and sound quality, and the speaker is arranged behind the keyboard, and the middle and upper part of the front shell is the display hole, which can make the screen size larger and the hand feel better, and the front shell and the rear shell are fastened by the fastening mechanism, and some screws are omitted, so that the appearance is more beautiful.

[0007] Furthermore, the speaker frame includes an inner ring and an outer ring arranged at intervals, a plurality of connecting plates connected between the inner ring and the outer ring, and a plurality of protrusions. The outer ring extends backward, and each protrusion is arranged on the inner side of the outer ring. The through hole is the gap between the inner ring and the outer ring. The lower end of the speaker is adhered to the inner ring through an adhesive layer and the side faces are in contact with each protrusion. Such an arrangement makes it easier to install the speaker and also allows the speaker, speaker frame and circuit board to be adhered together by the adhesive layer.

[0008] Furthermore, a first fixing mechanism is provided between the speaker stand and the circuit board, the first fixing mechanism comprising a plurality of first clips spaced apart on the outside of the outer ring and a plurality of clip holes provided on the circuit board and corresponding to the first clips, the first clip having a forward extension rod and a first bending portion provided at the end of the extension rod, after the extension rod passes forward through the clip hole, the first bending portion rests backward against the circuit board, and the speaker stand can be conveniently and quickly fixed on the circuit board.

[0009] Furthermore, the first fixing mechanism also includes a plurality of plug rods which are spaced apart on the outside of the outer ring and extend forward, and a plurality of sockets which are arranged on the circuit board and correspond to the plug rods. The plug rods are inserted into the sockets to make the speaker rack more firmly fixed.

[0010] Furthermore, a speaker hole is provided on the circuit board, the position of which corresponds to the speaker.

[0011] Furthermore, the hand microphone also includes an external interface and multiple buttons, the external interface is arranged on one side of the circuit board, and the multiple buttons are arranged longitudinally at intervals on the other side of the circuit board. The speaker frame is also provided with a first support member and a second support member, the first support member includes a first horizontal bar and a first oblique bar arranged on the outer ring, and a first vertical bar arranged between the first horizontal bar and the first oblique bar, a support groove is formed at the lower end of the first vertical bar, the rear end of the external interface extends into the support groove and contacts with the bottom of the support groove, and the second support member includes a rib arranged on the outer ring, and a plurality of abutment plates arranged at the end of the rib, each abutment plate abuts against the rear end of each button respectively. It can provide an outward support force for the external interface and the buttons, thereby effectively protecting the external interface and the buttons and extending their service life.

[0012] Furthermore, the liquid crystal frame includes a supporting plate, a plurality of limiters spaced apart at the edge of the supporting plate and extending forward, and a lifting member spaced apart at the edge of the supporting plate and extending backward. The liquid crystal display screen is arranged on the supporting plate and its edge is limited by each limiter. Each lifting member is fixed on the front shell and connected to the ground of the circuit board. The liquid crystal display screen is positioned in the display hole area by the limiter, and the liquid crystal display screen is lifted forward by the lifting member so that it is located in a suitable position. Since the lifting member has a certain height, the installation space can have more height to place some devices of special height. The lifting member is connected to the ground of the circuit board to achieve the effect of grounding shielding.

[0013] Furthermore, the lifting member includes a first positioning plate arranged at the edge of the supporting plate and extending horizontally backward, a second bending portion formed at the end of the first positioning plate, a first positioning hole formed on the second bending portion, a plurality of first positioning rods passing through the first positioning holes are arranged at the rear end of the front shell, and the second bending portion is connected to the ground of the circuit board. The connection with the front shell and the circuit board is achieved through a simple and reliable structure.

[0014] Furthermore, the edge of the support plate is also provided with a plurality of second positioning plates which are spaced apart and extend outward, and second positioning holes are formed on the second positioning plates. The rear end of the front shell is also provided with a plurality of second positioning rods which respectively pass through the second positioning holes.

[0015] Furthermore, the front shell also includes a front end face, two side faces arranged on both sides of the front end face and extending backward, and an upper side face arranged on the upper side of the front end face and extending backward. The fastening mechanism includes two second buckles respectively arranged on both sides of the rear shell and extending forward, a card groove arranged on the inner side of the front shell side and matching with the second buckle, an inverted L-shaped groove formed on the inner side of the rear end of the upper side of the front shell, and a buckle strip arranged on the upper side of the rear shell and extending upward and inserted into the inverted L-shaped groove. The front end face of the buckle strip rests on the wall of the inverted L-shaped groove, which can eliminate the connecting screws between the upper and middle part of the front shell and the rear shell, which not only makes the connection between the front shell and the rear shell simpler, but also makes the appearance more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model after the front shell and the rear shell are fastened.

[0019] Figure 3 It is a schematic cross-sectional view of the utility model after the front shell and the rear shell are fastened.

[0020] Figure 4 for Figure 3 Enlarged view of part A.

[0021] Figure 5 This is another structural schematic diagram of the utility model (removing the rear housing to expose the speaker and speaker frame).

[0022] Figure 6 for Figure 5 Enlarged view of part B.

[0023] Figure 7 It is a structural schematic diagram of the speaker stand of the utility model.

[0024] Figure 8 The utility model is a schematic diagram of the exploded structure of the circuit board, speaker frame, adhesive layer and speaker.

[0025] Fig. 9 It is a structural schematic diagram of the liquid crystal frame and the liquid crystal display screen of the utility model.

[0026] Fig.10 This is another structural schematic diagram of the utility model (with the liquid crystal frame exposed).

[0027] Fig.11 It is a structural schematic diagram of the front shell, liquid crystal display screen, liquid crystal frame and circuit board of the utility model.

[0028] Among them, 11, front shell; 111, keyboard; 112, display hole; 113, first positioning rod; 114, second positioning rod; 115, front end face; 116, side face; 117, upper side face; 118, keyboard hole; 12, rear shell; 13, external interface; 14, button; 21, inner ring; 22, outer ring; 23, through hole; 24, connecting piece; 25, raised part; 26, first support member; 261, first horizontal bar; 262, first oblique bar; 263, first vertical bar; 264, support groove; 27, second support member; 271, rib; 27 2. Abutment plate; 3. Speaker; 4. Adhesive layer; 5. Circuit board; 51. Speaker hole; 61. Second buckle; 62. Slot; 63. Inverted L-shaped slot; 64. Buckle strip; 7. Liquid crystal mechanism; 71. Support plate; 72. Limiting member; 73. Lifting member; 731. First positioning plate; 732. Second bending portion; 733. First positioning hole; 741. Second positioning plate; 742. Second positioning hole; 75. Liquid crystal display screen; 81. First buckle; 811. Extension rod; 812. First bending portion; 82. Hole; 83. Insert rod; 84. Insert hole. DETAILED DESCRIPTION

[0029] like Figures 1 to 11 As shown, the microphone includes a front shell 11, a rear shell 12, a speaker frame, a speaker 3, an adhesive layer 4, a circuit board 5, a fastening mechanism, a liquid crystal mechanism 7, an external interface 13 and a plurality of buttons 14. The front shell 11 includes a front face 115, two side faces 116 arranged on both sides of the front face 115 and extending backward, and an upper side face 117 arranged on the upper side of the front face 115 and extending backward. The lower shell of the front face 115 has a keyboard hole 118, the keyboard 111 is arranged on the inner side of the lower section of the front face 115, and each key of the keyboard 111 extends out of the keyboard hole 118. The upper middle part of the front shell 11 is a display hole 112. The liquid crystal mechanism 7 includes a liquid crystal frame and a liquid crystal display screen 75. The liquid crystal display screen 75 is arranged in the installation space through the liquid crystal frame and corresponds to the position of the display hole 112. The fastening mechanism is arranged between the front shell 11 and the rear shell 12 so that the front shell 11 and the rear shell 12 are fastened. After the front shell 11 and the rear shell 12 are fastened, an installation space is formed. The circuit board 5, the speaker frame, the speaker 3, the adhesive layer 4, etc. are arranged in the installation space. The speaker frame is arranged on the circuit board 5 and is located behind the keyboard 111. The speaker frame has a through hole 23. The speaker 3 is fixed on the speaker frame through the adhesive layer 4. The circuit board 5 is provided with a speaker hole 51 corresponding to the position of the speaker 3. The fastening mechanism includes two second buckles 61 respectively arranged on both sides of the rear shell 12 and extending forward, a card slot 62 arranged on the inner side of the side 116 of the front shell 11 and matching with the second buckle 61, an inverted L-shaped groove 63 formed on the inner side of the rear end of the upper side 117 of the front shell 11, and a buckle strip 64 arranged on the upper side of the rear shell 12 and extending upward and inserted into the inverted L-shaped groove 63, and the front end surface 115 of the buckle strip 64 abuts against the groove wall of the inverted L-shaped groove 63.

[0030] The speaker frame includes an inner ring 21 and an outer ring 22 arranged at intervals, a plurality of connecting pieces 24 connected between the inner ring 21 and the outer ring 22, and a plurality of protrusions 25. The outer ring 22 extends backward, and each protrusion 25 is arranged on the inner side of the outer ring 22. The through hole 23 is the gap between the inner ring 21 and the outer ring 22. The lower end of the speaker 3 is adhered to the inner ring 21 through the adhesive layer 4 and the side surface 116 is in contact with each protrusion 25. Such an arrangement enables the speaker 3, the speaker frame and the circuit board 5 to be adhered together through the adhesive layer 4, effectively avoiding the loss of sound and the distortion of resonance, and achieving good sound and sound quality. In order to make the installation of the speaker frame and the circuit board 5 more convenient and firm, a first fixing mechanism is further provided between the speaker frame and the circuit board 5, and the first fixing mechanism includes a plurality of first buckles 81 arranged at intervals on the outside of the outer ring 22, a plurality of clamping holes 82 arranged on the circuit board 5 and corresponding to each first buckle 81, a plurality of insertion rods 83 arranged at intervals on the outside of the outer ring 22 and extending forward, and a plurality of insertion holes 84 arranged on the circuit board 5 and corresponding to each insertion rod 83, the insertion rod 83 is inserted into the insertion hole 84, the first buckle 81 has a forward extension rod 811 and a first bending portion 812 arranged at the end of the extension rod 811, and after the extension rod 811 passes through the clamping hole 82 forward, the first bending portion 812 is backward against the circuit board 5. In this embodiment, the clamping hole 82 is square and the insertion hole 84 is round.

[0031] The external interface 13 (i.e., TYPE C interface) of the microphone is arranged on one side of the circuit board 5, and multiple buttons 14 are longitudinally spaced apart and arranged on the other side of the circuit board 5. In order to provide outward supporting force to the external interface 13 and the buttons 14 to protect the external interface 13 and the buttons 14, a first support member 26 and a second support member 27 are also arranged on the speaker frame. The first support member 26 includes a first horizontal bar 261 and a first oblique bar 262 arranged on the outer ring 22, and a first vertical bar 263 arranged between the first horizontal bar 261 and the first oblique bar 262. A support groove 264 is formed at the lower end of the first vertical bar 263. The rear end of the external interface 13 extends into the support groove 264 and contacts with the bottom of the support groove 264. The second support member 27 includes a rib 271 arranged on the outer ring 22 and a plurality of abutment plates 272 arranged at the end of the rib 271. Each abutment plate 272 abuts against the rear end of each button 14 respectively.

[0032] The liquid crystal frame includes a supporting plate 71, a plurality of stoppers 72 arranged at intervals on the edge of the supporting plate 71 and extending forward, and a lifting member 73 arranged at intervals on the edge of the supporting plate 71 and extending backward. The liquid crystal display screen 75 is arranged on the supporting plate 71 and its edge is limited by each stopper 72. Each lifting member 73 is fixed on the front shell 11 and connected to the ground of the circuit board 5. More specifically, the lifting member 73 includes a first positioning plate 731 arranged at the edge of the supporting plate 71 and extending horizontally backward, a second bending portion 732 formed at the end of the first positioning plate 731, and a first positioning hole 733 formed on the second bending portion 732. The rear end of the front shell 11 is provided with a plurality of first positioning rods 113 respectively passing through each first positioning hole 733. The rear end of the second bending portion 732 is in contact with the circuit board 5, that is, connected to the ground of the circuit board 5. A plurality of second positioning plates 741 are arranged at intervals and extend outward at the edge of the support plate 71 . Second positioning holes 742 are formed on the second positioning plates 741 . A plurality of second positioning rods 114 passing through the second positioning holes 742 are also arranged at the rear end of the front shell 11 .

[0033] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. A hand microphone, characterized in that: It includes a front shell, a rear shell, a speaker rack, a speaker, an adhesive layer, a circuit board, a fastening mechanism and a liquid crystal mechanism. The fastening mechanism is arranged between the front shell and the rear shell to fasten the front shell and the rear shell. The lower part of the front shell is provided with a keyboard, and the upper and middle parts are display holes. After the front shell and the rear shell are fastened, an installation space is formed. The circuit board is arranged in the installation space. The speaker rack is arranged on the circuit board and is located behind the keyboard. The speaker rack has a through hole. The speaker is fixed to the speaker rack through the adhesive layer. The adhesive layer is used to adhere the speaker to the circuit board through the through hole. The liquid crystal mechanism includes a liquid crystal frame and a liquid crystal display screen. The liquid crystal display screen is arranged in the installation space through the liquid crystal frame and corresponds to the position of the display hole.

2. A hand microphone according to claim 1, characterized in that: The speaker frame includes an inner ring and an outer ring arranged at intervals, a plurality of connecting plates connected between the inner ring and the outer ring, and a plurality of protrusions. The outer ring extends backward, and each protrusion is arranged on the inner side of the outer ring. The through hole is the gap between the inner ring and the outer ring. The lower end of the speaker is adhered to the inner ring through an adhesive layer and the side faces are in contact with each protrusion.

3. A hand microphone according to claim 2, characterized in that: A first fixing mechanism is also arranged between the speaker frame and the circuit board. The first fixing mechanism includes a plurality of first clips spaced apart on the outside of the outer ring and a plurality of clip holes arranged on the circuit board and corresponding to the first clips. The first clip has a forward extension rod and a first bending portion arranged at the end of the extension rod. After the extension rod passes forward through the clip hole, the first bending portion rests backward on the circuit board.

4. A hand microphone according to claim 3, characterized in that: The first fixing mechanism also includes a plurality of insertion rods which are arranged at intervals outside the outer ring and extend forward, and a plurality of insertion holes which are arranged on the circuit board and correspond to the insertion rods, and the insertion rods are inserted into the insertion holes.

5. A hand microphone according to claim 3 or 4, characterized in that: The circuit board is provided with a speaker hole whose position corresponds to the speaker.

6. A hand microphone according to claim 2, 3 or 4, characterized in that: The microphone also includes an external interface and multiple buttons, the external interface is arranged on one side of the circuit board, and the multiple buttons are longitudinally spaced apart on the other side of the circuit board. The speaker frame is also provided with a first support member and a second support member, the first support member includes a first horizontal bar and a first oblique bar arranged on the outer ring, and a first vertical bar arranged between the first horizontal bar and the first oblique bar, a support groove is formed at the lower end of the first vertical bar, the rear end of the external interface extends into the support groove and contacts with the bottom of the support groove, and the second support member includes a rib arranged on the outer ring and a plurality of abutment plates arranged at the end of the rib, and each abutment plate respectively abuts against the rear end of each button.

7. A hand microphone according to claim 1 or 2 or 3 or 4, characterized in that: The liquid crystal frame includes a supporting flat plate, a plurality of limiting members spaced apart at the edge of the supporting flat plate and extending forward, and a lifting member spaced apart at the edge of the supporting flat plate and extending backward. The liquid crystal display screen is arranged on the supporting flat plate and its edges are limited by the limiting members. The lifting members are respectively fixed on the front shell and connected to the ground of the circuit board.

8. A hand microphone according to claim 7, characterized in that: The supporting member includes a first positioning plate arranged at the edge of the supporting plate and extending horizontally backward, a second bending portion formed at the end of the first positioning plate, and a first positioning hole formed on the second bending portion. The rear end of the front shell is provided with a plurality of first positioning rods that pass through the first positioning holes respectively, and the second bending portion is connected to the ground of the circuit board.

9. A hand microphone according to claim 7, characterized in that: The edge of the support plate is also provided with a plurality of second positioning plates which are spaced apart and extend outward, and second positioning holes are formed on the second positioning plates. The rear end of the front shell is also provided with a plurality of second positioning rods which respectively pass through the second positioning holes.

10. A hand microphone according to claim 1 or 2 or 3 or 4, characterized in that: The front shell also includes a front end face, two side faces arranged on both sides of the front end face and extending backward, and an upper side face arranged on the upper side of the front end face and extending backward. The fastening mechanism includes two second buckles respectively arranged on both sides of the rear shell and extending forward, a card groove arranged on the inner side of the front shell side and matching with the second buckle, an inverted L-shaped groove formed on the inner side of the rear end of the upper side of the front shell, a buckle strip arranged on the upper side of the rear shell and extending upward and inserted into the inverted L-shaped groove, and the front end face of the buckle strip rests against the wall of the inverted L-shaped groove.

Images