Wall-inserted broadcast box

Abstract

The utility model relates to a wall plug type broadcast box, which comprises a shell and a circuit board fixed inside the shell, an integrated keycap group is arranged inside the shell, a function button connected with the integrated keycap group is arranged on the circuit board facing the inside of the shell, and the function button is connected with the integrated keycap group. The side wall of the shell is provided with a profiling key containing hole, and at least part of the keys of the integrated key cap set extend out of an outer hole opening of the key containing hole. The device has the advantages that all the interaction buttons are connected together through the integrated keycap set, operation is easy, the manufacturing cost is low, and parts are easy to replace.

Description

Technical Field

[0001] The utility model belongs to the field of intelligent cash collection speakers, in particular to a wall-plug-type broadcast box. Background Art

[0002] With the development of social economy and the improvement of people's living standards, more and more shops are being developed, and small-scale real economy has become an inseparable part of economic development. Daily cash flow needs to be traceable, and every payment needs to be recorded.

[0003] Patent CN209593726U discloses a 220V direct plug wireless speaker, including: a 220V power plug coupled to the speaker, a power conversion circuit, a wireless communication module, an amplifier module, and a speaker; the 220V power plug coupled to the speaker is directly coupled to the box of the 220V direct plug wireless speaker, so that the 220V direct plug wireless speaker as a whole is directly plugged into the wall socket with 220V AC as the power source; the 220V AC is converted into low-voltage DC through the power conversion circuit to power the wireless communication module and the amplifier module to realize the wireless wall plug playback function of the speaker. Compared with the prior art, the new type can make the speaker as a whole directly plugged into the wall power socket without considering frequent charging; it can also have a built-in battery to realize power offline playback; it can also be configured with a Bluetooth remote control to remotely adjust the volume; it can also add a Bluetooth forwarding module to connect to a desktop computer host, so that the desktop computer has the wall plug Bluetooth wireless playback and remote control tuning functions.

[0004] In the above patent, the buttons inside the speaker are installed independently, and the button interaction is relatively complicated, resulting in high production and maintenance costs. Utility Model Content

[0005] The purpose of the utility model is to provide a wall-plug type broadcast box that can solve the above technical problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A wall-plug broadcast box comprises a shell and a circuit board fixed inside the shell, an integrated key cap group is also arranged inside the shell, a function button connected to the integrated key cap group is arranged on the circuit board facing the inside of the shell, a contoured key storage hole is arranged on the side wall of the shell, and the keys of the integrated key cap group at least partially extend out of the outer opening of the key storage hole.

[0008] Furthermore, the integrated keycap set also includes elastic arms connected to the keys one by one, and the elastic arms are connected to the connecting rod.

[0009] Furthermore, a fixed slot is provided inside the shell, and the connecting rod is clamped in the fixed slot.

[0010] Furthermore, a status light is also provided on the function button, and the status light is embedded in the button.

[0011] Furthermore, the button is made of a transparent or light-transmitting material, and the light of the status light can pass through the button.

[0012] Furthermore, at least two positioning grooves are respectively arranged on the two opposite side edges of the circuit board, and positioning anti-misalignment ribs corresponding to the positioning grooves are also arranged on the inner side walls of the shell.

[0013] Furthermore, a speaker is arranged on the circuit board, a plurality of speaker holes are opened on the front surface of the housing, and the speaker amplifier faces the speaker holes.

[0014] Furthermore, the circuit board is provided with a power plug with an outer end extending out of the housing.

[0015] Furthermore, the circuit board is connected to the speaker via a power amplifier circuit module.

[0016] Furthermore, the housing comprises a rectangular housing and a conical housing, and the rectangular housing and the conical housing are buckled with each other.

[0017] Compared with the existing technology, the advantages of the present application are: the device utilizes an integrated key cap set to connect all interactive buttons together, is easy to operate, has a low manufacturing cost, and is easy to replace parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the main structure of the utility model;

[0019] Figure 2 This is a detailed diagram of the interior of the housing and speaker combination in the present invention;

[0020] Figure 3 This is a diagram showing the state of installing a circuit board for the utility model;

[0021] Figure 4 It is a connection relationship diagram between various circuit modules of the utility model.

[0022] In the figure, there are a shell 1, a button storage hole 10, a fixing slot 11, an anti-fouling rib 12, a speaker hole 13, a rectangular shell 14, and a conical shell 15, a circuit board 2, a function button 20, a status light 21, a positioning slot 22, an integrated keycap set 3, a button 30, an elastic arm 31, a connecting rod 32, a speaker 4, and a power plug 5. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] Embodiment 1

[0025] like Figure 1 As shown, the wall-plug broadcast box includes a shell 1 and a circuit board 2 fixed inside the shell 1. An integrated key cap group 3 is also arranged inside the shell 1. Function buttons 20 connected to the integrated key cap group 3 are arranged on the circuit board 2 facing the inside of the shell 1. A contoured key storage hole 10 is arranged on the side wall of the shell 1. The keys 30 of the integrated key cap group 3 at least partially extend out of the outer opening of the key storage hole 10.

[0026] For example, a function button 20 is disposed on the circuit board 2 and is located in the opening of the button receiving hole 10 and corresponds one-to-one with the button 30 .

[0027] Specifically, the function button 20 on the circuit board 2 is placed in the key 30 of the integrated keycap group 3, and the key 30 is placed against the outer hole of the key storage hole 10. During the interaction, the user presses and holds the key 30, while driving the function button 20 to interact, and the function button 20 transmits the signal to the circuit board 2.

[0028] The integrated keycap set 3 further includes elastic arms 31 connected to the keys 30 one by one, and the elastic arms 31 are connected to the connecting rods 32 .

[0029] All the keys 30 are connected together by the connecting rod 32. During the manufacturing process, all the keys 30 can be manufactured together through injection molding and other processes. When the equipment is installed, replaced or repaired, the operation is simple, and the integrated key cap group 3 only needs to be placed in the specified position.

[0030] The elastic arm 31 has the function of rebounding and restoring the button 30 when the user presses the button 30 .

[0031] A fixing slot 11 is also provided inside the housing 1 , and the connecting rod 32 is clamped in the fixing slot 11 .

[0032] The function of the fixing slot 11 is to fix the integrated key cap set 3 at a specified position inside the housing 1 to prevent the integrated key cap set 3 from loosening and falling off due to external interference in the device.

[0033] The function button 20 is also provided with a status light 21 , which is embedded in the key 30 .

[0034] The status light 21 is used to provide feedback to the user, and is connected to the function button 20 and the circuit board 2 through a circuit.

[0035] The button 30 is made of a transparent or light-transmitting material, and the light from the status light 21 can pass through the button 30 .

[0036] In this embodiment, the button 30, the status light 21 and the function button 20 are arranged on an axis, which greatly optimizes the processing of the surface of the shell 1, reduces the openings of the shell 1, and is conducive to improving the service life of the wall-plug broadcast box.

[0037] like Figure 2-Figure 3 As shown, at least two positioning grooves 22 are respectively provided on the two opposite edges of the circuit board 2 , and positioning anti-mistake ribs 12 corresponding to the positioning grooves 22 are also provided on the inner side wall of the housing 1 .

[0038] Specifically, the distances between the positioning grooves 22 on the two side edges are different, so as to achieve the anti-fool effect during the installation of the circuit board 2. The positioning anti-fool ribs 12 are inserted into the positioning grooves 22, and the gap between the two is small. At the same time, in this embodiment, the circuit board 2 and the housing 1 are fixedly connected by screws, so as to achieve the fixing stability of the circuit board 2.

[0039] A loudspeaker 4 is arranged on the circuit board 2 , and a plurality of loudspeaker holes 13 are opened on the front surface of the housing 1 . The power amplifier of the loudspeaker 4 faces the loudspeaker holes 13 .

[0040] The speaker 4 is connected to the circuit board 2 in an electrical circuit, and the volume of the speaker 4 can be adjusted through the function button 20 .

[0041] A power plug 5 is disposed on the circuit board 2 and the outer end of the power plug extends out of the housing 1 .

[0042] The power plug 5 is used to power the entire system. The power plug 5 can be directly connected to 220V AC. Since the device requires low-voltage DC, there is a transformer and step-down module between the power plug 5 and the circuit board 2, which can convert the external high-voltage AC into low DC to power the system.

[0043] The circuit board 2 is connected to the speaker 4 via a power amplifier circuit module.

[0044] The housing 1 comprises a rectangular housing 14 and a conical housing 15 , and the rectangular housing 14 and the conical housing 15 are buckled with each other.

[0045] The rectangular housing 14 and the conical housing 15 are buckled together to form an internal space, and all components of the device are fixed in the internal space.

[0046] Embodiment 2

[0047] The structure and principle of this embodiment are basically the same as those of the first embodiment. The difference lies in that, with respect to the wall-plug-in announcement box of the first embodiment, this embodiment will further describe the wall-plug-in announcement box in the first embodiment.

[0048] The wall-plug broadcast box in this embodiment has the same structure as the wall-plug broadcast box in the first embodiment. A main control unit is arranged on the circuit board 2, and its function is to receive system signals and send signals to control system components.

[0049] like Figure 4 As shown, a networking module and a Bluetooth module are also provided on the circuit board 2. The former can connect the system to the Internet and perform operation interactions when powered on, and the latter allows users to connect devices using Bluetooth when there is no network.

[0050] The power amplifier module, voltage-converting and step-down module, networking module and Bluetooth module in this application are all connected to the main control unit.

[0051] Embodiment 3

[0052] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the difference lies in that, for the wall-plug-type broadcast box of the first embodiment, this embodiment provides a new power supply method.

[0053] In this embodiment, the internal structure of the wall-plug broadcast box is the same as the internal structure of the wall-plug broadcast box described in the above embodiment, except that a storage battery is built into the wall-plug broadcast box in this embodiment.

[0054] The battery is connected between the circuit board 2 and the step-down module. It can be charged when powered on. When the external direct power supply is cut off, it can provide power for the system for a certain period of time to prevent the power outage from affecting the user's information broadcast.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A wall-plug broadcast box, comprising a housing (1), and a circuit board (2) fixed inside the housing (1), characterized in that: An integrated keycap group (3) is also arranged inside the housing (1); a function button (20) connected to the integrated keycap group (3) is arranged on the circuit board (2) facing the inside of the housing (1) of the integrated keycap group (3); a contoured key storage hole (10) is arranged on the side wall of the housing (1); the keys (30) of the integrated keycap group (3) at least partially protrude from the outer opening of the key storage hole (10); the integrated keycap group (3) further comprises elastic arms (31) connected one by one to the keys (30); the elastic arms (31) are connected to the connecting rod (32); A fixed slot (11) is also provided inside the housing (1), and the connecting rod (32) is clamped in the fixed slot (11).

2. The wall-plug announcement box according to claim 1, characterized in that: The function button (20) is also provided with a status light (21), and the status light (21) is embedded in the key (30).

3. The wall-plug announcement box according to claim 2, characterized in that: The button (30) is made of a transparent or light-transmitting material, and light from the status light (21) can pass through the button (30).

4. The wall-plug announcement box according to claim 1, characterized in that: At least two positioning grooves (22) are respectively provided on the two opposite edges of the circuit board (2), and positioning anti-misalignment ribs (12) corresponding one to one with the positioning grooves (22) are also provided on the inner side wall of the housing (1).

5. The wall-plug announcement box according to claim 1, characterized in that: A loudspeaker (4) is arranged on the circuit board (2), a plurality of loudspeaker holes (13) are provided on the front surface of the housing (1), and the power amplifier of the loudspeaker (4) faces the loudspeaker holes (13).

6. The wall-plug announcement box according to claim 1, characterized in that: The circuit board (2) is provided with a power plug (5) whose outer end extends outside the housing (1).

7. The wall-plug announcement box according to claim 5, characterized in that: The circuit board (2) is connected to the speaker (4) via a power amplifier circuit module.

8. The wall-plug announcement box according to claim 1, characterized in that: The housing (1) comprises a rectangular housing (14) and a conical housing (15), and the rectangular housing (14) and the conical housing (15) are buckled with each other.

Images