Broadcasting system

Abstract

This invention provides a broadcasting system applied to a field. The broadcasting system includes multiple embedded playback devices and a control device. The multiple embedded playback devices are positioned in multiple areas of the field and play audio messages. The control device is electrically connected to the multiple embedded playback devices. Each embedded playback device has an audio receiving module, a first communication interface, and a second communication interface. The audio receiving module and the first communication interface are configured to receive audio messages. The second communication interface is configured to output audio messages. The control device is configured to transmit audio messages to one of the embedded playback devices, causing the multiple embedded playback devices to play audio messages. The communication interfaces correspond to the DLNA protocol, enabling the multiple embedded playback devices to form a Networktopology architecture, and the multiple embedded playback devices in the areas form a group.

Description

Technical Field

[0001] This invention relates to the technical field of a broadcasting system, and more particularly to a broadcasting system that utilizes the Digital Life Network Alliance (DLNA) protocol to enable multiple embedded playback devices to form a network topology architecture. Prior Technology

[0002] Compared to wall-mounted or other types of players, the player in the broadcast system is installed inside the ceiling, which has advantages such as being more aesthetically pleasing, saving space, and having a wider broadcast range.

[0003] In most broadcast systems, the players are connected to a master audio player via a PLC controller, which in turn connects to multiple slave audio players to control their operation in master-slave mode. However, this method has many inconveniences for users. For example, once the audio players are set up, it is not possible to select different audio messages to play in different areas of the same venue or to play the same audio message uniformly in the same venue.

[0004] In summary, the inventor of this invention has many years of experience in manufacturing, developing and designing related products. In order to address the above-mentioned objectives, a broadcasting system has been designed to improve upon the shortcomings of existing technologies and thereby enhance its industrial application. Summary of the Invention

[0005] In view of the problems of the prior art described above, the object of the present invention is to provide a broadcasting system to solve the problems that need to be improved in the prior art.

[0006] To achieve the above objectives, the present invention provides a broadcasting system applicable to a field. The broadcasting system includes multiple embedded playback devices and a control device. The multiple embedded playback devices are disposed in multiple areas of the field. Each embedded playback device includes: a speaker having a sound output end and a mounting end; and a circuit board module disposed at the mounting end and electrically connected to the speaker. The circuit board module includes an audio receiving module, a first communication interface, a second communication interface, and a processing module. The audio receiving module and the first communication interface are configured to input an audio signal. The second communication interface is configured to output the audio signal. The processing module controls the speaker to play the audio signal. The control device is electrically connected to the multiple embedded playback devices. The control device is configured to transmit the audio signal to one of the embedded playback devices, so that the multiple embedded playback devices play the audio signal. The first and second communication interfaces are configured to transmit the audio via the Digital Life Network Alliance (DLNA) protocol, thereby enabling multiple broadcast systems to form a network topology and multiple embedded playback devices in the area to form a group.

[0007] Preferably, the plurality of embedded playback devices in the area are electrically connected to an external electronic device. The external electronic device is configured to transmit audio messages to one of the plurality of embedded playback devices in the area, so that the plurality of embedded playback devices in the area can play the audio messages. Wherein, when both the control device and the external electronic device transmit the audio messages, the processing module prioritizes the embedded playback device to play the audio messages from the control device.

[0008] Preferably, the first communication interface is configured to be electrically connected to another embedded playback device to receive the audio signal from the other embedded playback device. The second communication interface is configured to be electrically connected to another embedded playback device to output the audio signal to the other embedded playback device.

[0009] Preferably, the audio receiving module includes a wireless transmission unit. The wireless transmission unit is wirelessly and electrically connected to the control device or the external electronic device to receive the audio signal from the control device or the external electronic device. The wireless transmission unit includes Wi-Fi communication and Bluetooth communication.

[0010] Preferably, the audio receiving module includes an audio input interface. The audio input interface is wired and electrically connected to the control device or the external electronic device to receive audio from the control device or the external electronic device.

[0011] Preferably, the circuit board module includes a first button. The first button is electrically connected to the processing module and configured to generate a switching signal. The processing module controls the reception of the audio signal via Wi-Fi, Bluetooth, or an audio input interface based on the switching signal.

[0012] Preferably, the circuit board module includes a second button. The second button is electrically connected to the processing module and configured to generate a pairing signal. Based on the pairing signal, the processing module controls the wireless transmission unit to pair with another electronic device via Bluetooth or to connect to a wireless network via Wi-Fi.

[0013] Preferably, the embedded playback device includes a carrier. The carrier has a fitting opening corresponding to the sound output end. The sound output end fits into the fitting opening and is fixed to the carrier. The circuit board module includes a circuit board. The circuit board has a sleeve opening corresponding to the mounting end, and the circuit board is fitted onto the mounting end through the sleeve opening.

[0014] Preferably, the carrier is provided with a plurality of clamping modules arranged in a ring array. The clamping modules are configured to clamp the wall surface around the mounting hole when the embedded playback device is inserted into the mounting hole.

[0015] Preferably, the clamping module includes a cylindrical body, a connecting rod, a clamping member, and an elastic member. The cylindrical body is disposed on the side of the support member facing away from the sound output end and extends towards the mounting end. The cylindrical body has an axial groove and a radial groove communicating with the end of the axial groove away from the sound output end. One end of the connecting rod is rotatably disposed at the sound output end, and the other end is rotatably disposed at the cylindrical body, and a connecting portion is provided on the connecting rod adjacent to the radial groove. The clamping member is detachably disposed on the connecting portion. The elastic member is sleeved on the connecting rod, and when the clamping member is located in the radial groove, the elastic member is in an elastically stretched state.

[0016] The technical features of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings, so that those skilled in the art can easily understand the purpose, technical features and advantages of the present invention. Simple Explanation of the Diagram

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a block diagram of the broadcasting system of the present invention.

[0019] Figure 2 is a block diagram of the embedded playback device of the broadcast system of the present invention.

[0020] Figure 3 is a schematic diagram of the embedded playback device of the broadcasting system of the present invention.

[0021] Figure 4 is a schematic diagram illustrating the application of the broadcasting system of the present invention.

[0022] Figure 5 is a schematic diagram of the structure of the clamping module of the embedded playback device of the broadcasting system of the present invention.

[0023] Figure 6 is a schematic diagram of the operation of the clamping module of the embedded playback device of the broadcast system of the present invention. Implementation

[0024] The advantages, features, and technical methods of the present invention will be more readily understood by referring to the exemplary embodiments and accompanying drawings. The present invention may be implemented in different forms and should not be construed as limited to the embodiments set forth herein. Rather, the embodiments provided will make the disclosure of the present invention more thorough and complete and convey the scope of the present invention to those skilled in the art. The present invention will be defined only as defined in the appended claims.

[0025] It should be understood that although the terms "first," "second," etc., may be used in this invention to describe various elements, components, regions, sections, layers, and / or portions, these elements, components, regions, sections, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, section, layer, and / or portion from another element, component, region, section, layer, and / or portion.

[0026] It should also be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0027] Unless otherwise defined, all terms used in this invention (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and this invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined herein.

[0028] It should also be understood that the terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and / or the appended claims, the singular forms "a" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] Please refer to Figures 1 to 6. Figure 1 is a block diagram of the broadcasting system of the present invention. Figures 2 to 6 are related schematic diagrams of the embedded playback devices of the broadcasting system of the present invention. As shown in the figures, the broadcasting system S of the present invention is applied to a field; wherein, the field is, for example, an office building or a residential complex. The broadcasting system S of the present invention mainly includes multiple embedded playback devices 1 and a control device 4.

[0030] The embedded playback devices 1 are installed in multiple areas within the venue; for example, when the venue is an office building, the areas are the various units on each floor of each building; when the venue is a residential building, the areas are the various floors of each building or the individual households on each floor. Each embedded playback device 1 includes a speaker 10 and a circuit board module 2. The speaker 10 has a sound output end 11 and a mounting end 12. The circuit board module 2 is disposed on the mounting end 12 and electrically connected to the speaker 10. The circuit board module 2 has an audio receiving module 21, a first communication interface 22, a second communication interface 23, and a processing module 24. The audio receiving module 21 and the first communication interface 22 are configured to input or receive an audio signal. The second communication interface 23 is configured to output the audio signal. The processing module 24 controls the speaker 10 to play the audio signal. The first communication interface 22 and the second communication interface 23 are configured to transmit the audio message according to the Digital Life Network Alliance (DLNA) protocol, so that the multiple broadcast systems S form a network topology architecture, and the multiple embedded playback devices 1 in the area form a group.

[0031] The control device 4 is electrically connected to at least one of the multiple embedded playback devices 1 or multiple embedded playback devices 1 in each area. The control device 4 is configured to transmit an audio message (for ease of understanding, the audio message transmitted by the control device 4 hereafter is referred to as the first audio message 41) to one of the multiple embedded playback devices 1 or one of the multiple embedded playback devices 1 in each area, so that the multiple embedded playback devices 1 play the first audio message 41 (that is, all the embedded playback devices 1 in the entire field play the first audio message 41).

[0032] Additionally, at least one or more embedded playback devices 1 in the area are electrically connected to an external electronic device 5. The external electronic device 5 is configured to transmit an audio message (hereinafter referred to as the second audio message 51) to at least one or more embedded playback devices 1 in the area, so that all embedded playback devices 1 in the area play the second audio message 51. It is worth noting that when both the control device 4 and the external electronic device 5 transmit audio messages, the processing module 24 prioritizes that the embedded playback devices 1 play the first audio message 41 from the control device 4.

[0033] For example, control device 4 can be a property management device for office buildings or residential complexes, such as a desktop computer, laptop computer, or a smartphone or tablet computer used by property management personnel. Property management personnel can then input the desired broadcast information via control device 4 to generate a first audio message 41, which will cause all embedded playback devices 1 in the area to play the first audio message 41 to convey or promote the relevant information. When control device 4 is not transmitting the first audio message 41, each business unit (i.e., area) can use an external electronic device 5, such as a smartphone, tablet computer, laptop computer, or desktop computer, to input the desired broadcast information to generate a second audio message 51, which will then cause all embedded playback devices 1 in the entire area (the entire business unit) to play the second audio message 51 to convey or promote the relevant information. Alternatively, when the control device 4 does not transmit the first audio message 41, each business unit or household (i.e., the area) can use an external electronic device 5 such as a smartphone, tablet, laptop or desktop computer to input a second audio message 51, such as music, thereby driving the embedded playback device 1 in the entire area to play the second audio message 51.

[0034] Furthermore, the first communication interface 22 and the second communication interface 23 can be RJ45 interfaces, wherein the first communication interface 22 can be configured for LAN IN, and the second communication interface 23 can be configured for LAN OUT. That is, the first communication interface 22 is configured to be electrically connected to another embedded playback device 1 to receive audio signals from the other embedded playback device 1. Similarly, the second communication interface 23 is configured to be electrically connected to another embedded playback device 1 to output audio signals to the other embedded playback device 1. Among them, another embedded playback device 1 can be different embedded playback devices 1. For example, embedded playback device A 1 is connected to the first communication interface 22 of embedded playback device B 1 via the second communication interface 23, embedded playback device B 1 is connected to the first communication interface 22 of embedded playback device C 1 via the second communication interface 23, and embedded playback device C 1's second communication interface 23 is connected to the first communication interface 22 of embedded playback device A 1. Furthermore, the first communication interface 22 and the second communication interface 23 correspond to the Digital Living Network Alliance (DLNA) protocol for transmitting the audio 91; or, in other words, the embedded playback device 1 contains the relevant settings of the Digital Living Network Alliance (DLNA) protocol, thereby enabling multiple embedded playback devices 1 to form a network topology architecture. In this way, each embedded playback device 1 can be a master embedded playback device 1 or a slave embedded playback device 1.

[0035] Therefore, when multiple embedded playback devices 1 are arranged in a field, and the field has multiple areas, such as each business unit, each household, or the living room and multiple rooms in each household, the multiple embedded playback devices 1 in each area can be configured to form a group. For example, one or more embedded playback devices 1 of business unit A can form one group, and one or more embedded playback devices 1 of business unit B can form another group, so that business unit A and business unit B can play different audio messages respectively. In addition, when needed, the embedded playback devices 1 of business unit A and business unit B can be made to play the first audio message 41 synchronously through the control device 4.

[0036] The broadcasting system of the present invention can improve many inconveniences for users by means of the above, and also facilitates the arrangement of multiple embedded playback devices 1 in a field by relevant personnel.

[0037] In addition, the audio receiving module 21 includes a wireless transmission unit 211. The wireless transmission unit 211 may include wireless network (WIFI) communication and Bluetooth communication, so that the wireless transmission unit 211 can be wirelessly and electrically connected to control devices 4 or external electronic devices 5, such as audio playback controllers, smartphones, tablets, laptops, and desktop computers, to receive audio from control devices 4 or external electronic devices 5.

[0038] Preferably, the audio receiving module 21 includes an audio input interface 212. The audio input interface 212 may be, for example, an AXU interface, so that the audio input interface 212 can be wired and electrically connected to the control device 4 or external electronic device 5 to receive audio from the control device 4 or external electronic device 5. For example, the wireless transmission unit 211 or audio input interface 212 of embedded playback device A 1 is electrically connected to the audio 1 of the control device 4 or external electronic device 5. The second communication interface 23 of embedded playback device A 1 is connected to the first communication interface 22 of embedded playback device B 1 to transmit audio to embedded playback device B 1; the second communication interface 23 of embedded playback device B 1 is connected to the first communication interface 22 of embedded playback device C 1 to transmit audio to embedded playback device C 1; the second communication interface 23 of embedded playback device C 1 is connected to the first communication interface 22 of embedded playback device A 1 to transmit audio to embedded playback device A 1. In this way, multiple embedded playback devices 1 can receive audio signals from control device 4 or external electronic device 5 and play the audio signals synchronously within a network topology architecture. Alternatively, embedded playback device A 1 and embedded playback device B 1 can each receive different audio signals, while embedded playback device A 1 and embedded playback device C 1 can play audio signals synchronously, and embedded playback device B 1 can play different audio signals.

[0039] Preferably, the circuit board module 2 includes a first button 25. The first button 25 is electrically connected to the processing module 24 and configured to generate a switching signal 251. The processing module 24 controls the reception of audio 91 via Wi-Fi, Bluetooth, or audio input interface 212 based on the switching signal 251. For example, pressing the first button 25 continuously switches between Wi-Fi, Bluetooth, and audio input interface 212 as the input source.

[0040] Preferably, the circuit board module 2 includes a second button 26. The second button 26 is electrically connected to the processing module 24 and configured to generate a pairing signal 261. The processing module 24 controls the wireless transmission unit 211 to pair with the control device 4 or an external electronic device via Bluetooth or to connect to a wireless network via Wi-Fi based on the pairing signal 261. For example, a short press of the second button 26 can drive the embedded playback device 1 to pair with the audio of the control device 4 or an external electronic device 5 via Bluetooth, such as an audio playback controller, smartphone, tablet, laptop, desktop computer, or other electronic devices such as a wireless subwoofer; a long press of the second button 26 can drive the embedded playback device 1 to perform wireless network pairing via Wi-Fi.

[0041] As shown in Figures 5 and 6, structurally, the embedded playback device 1 includes a carrier 3. The carrier 3 has a fitting opening 31 corresponding to the sound output end 11. The sound output end 11 fits into the fitting opening 31 and is fixed to the carrier 3. The circuit board module 2 includes a circuit board 20. The circuit board 20 has a fitting opening 201 corresponding to the mounting end 12, and the circuit board 20 is fitted onto the mounting end 12 through the fitting opening 201.

[0042] The support member 3 is provided with a plurality of clamping modules 32 arranged in a ring array; the clamping modules 32 are configured to clamp the wall surface around the mounting hole when the embedded playback device 1 is inserted into a mounting hole. Further, the clamping module 32 includes a cylindrical part 33, a connecting rod 34, a clamping member 35 and an elastic member 36; the cylindrical part 33 is disposed on the side of the support member 3 facing away from the sound output end 11 and extends towards the mounting end 12; the cylindrical part 33 is provided with an axial groove 331 and a radial groove 332 connected at the end of the axial groove 331 away from the sound output end 11. One end of the linkage rod 34 is rotatably disposed at the sound outlet 11, and the other end is rotatably disposed at the end of the cylinder portion away from the sound outlet 11. A linkage part 341 is provided on the linkage rod 34 near the radial groove 332. The clamping member 35 may be L-shaped and is detachably disposed on the linkage part 341. The elastic member 36 is sleeved on the linkage rod 34, and when the clamping member 35 is located in the radial groove 332, the elastic member 36 is in an elastically stretched state.

[0043] For example, in the original factory state, the clamping member 35 is located in the radial groove 332. When the user puts the embedded playback device 1 into or inserts it into the mounting hole, the user can rotate the linkage rod 34 to make the clamping member 35 rotate. When the clamping member 35 is rotated to the axial groove 331, it is affected by the elastic restoring force of the elastic member 36, so that the clamping member 35 is displaced from the end of the cylindrical part away from the sound outlet 11 to the adjacent end, so that the body of the carrier 3 and the clamping member 35 can be used to clamp the wall around the mounting hole. It is worth mentioning that the linkage 341 can be non-circular in shape, and the end of the linkage 341 facing the sound output end 11 can be conical. Thus, when the user wants to disassemble the embedded playback device 1, he can pull the embedded playback device 1, causing the clamping member 35 to move from the end of the cylindrical part near the sound output end 11 to the end away from it. And due to the influence of the conical structure, the linkage 341 can be embedded or attached to the clamping member 35. Then, the user can rotate the linkage rod 34 so that the clamping member 35 is rotated to the radial groove 332.

[0044] The clamping module of the embedded playback device of the broadcasting system of the present invention has a simple structure, is safe and secure, and has a long service life; the disassembly and assembly process is simple and can greatly improve work efficiency; the disassembly and assembly will not damage the board material, and it can be installed on ceilings or walls of different thicknesses.

[0045] In the several embodiments provided by this invention, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the above embodiments can be arbitrarily combined and applied without conflict; for example, the apparatus embodiments described above are merely illustrative, and the division of modules is merely a logical functional division, and other division methods may be used in actual implementation; for example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed can be through some interface, the indirect coupling or communication connection of the device or module, and can be electrical or other forms.

[0046] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one position or distributed in multiple positions. Some or all of the modules can be selected to achieve the purpose of the embodiment solution according to actual needs.

[0047] Furthermore, in the various embodiments of the present invention, the functional modules can be integrated into a single processor, or each module can exist physically separately, or two or more modules can be integrated into a single module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0048] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0049] S: Broadcasting system 1: Embedded playback device 10: Speaker components 11: Sound output end 12: Installation end 2: Circuit board module 20: Circuit board 201: Set-in port 21: Audio Receiving Module 211: Wireless Transmission Unit 212: Audio Input Interface 22: First Communication Interface 23: Second Communication Interface 24: Processing Module 25: First button 251: Switching Signals 26: Second button 261: Matching signal 3: Bearing components 31: Chimera port 32: Clamping Module 33: Cylinder Section 331: Axial groove 332: Radial groove 34: Linkage rod 341: Linkage Section 35: Clamping component 36: Elastic component 4: Control device 41: First News 5: External electronic devices 51: Second Message

Claims

1. A broadcasting system applied in a field, the broadcasting system comprising: a plurality of embedded playback devices disposed in a plurality of areas of the field, each embedded playback device comprising: a speaker having a sound output end and a mounting end; and a circuit board module disposed on the mounting end and electrically connected to the speaker; the circuit board module having an audio receiving module, a first communication interface, a second communication interface, and a processing module; the audio receiving module and the first communication interface being configured to input an audio signal; the second communication interface being configured to output the audio signal; the processing module controlling the speaker to play the audio signal; and a control device electrically connected to the plurality of embedded playback devices; the control device being configured to transmit the audio signal to one of the embedded playback devices, so that the plurality of embedded playback devices play the audio signal; wherein... The first and second communication interfaces transmit the audio message according to the Digital Life Network Alliance (DLNA) protocol, enabling multiple broadcast systems to form a network topology, and multiple embedded playback devices in the area to form a group; wherein, the embedded playback device includes a carrier; the carrier has a fitting opening corresponding to the sound output end; the sound output end fits into the fitting opening and is fixed to the carrier; the carrier is provided with a plurality of clamping modules arranged in a ring array; the clamping modules are configured to clamp the wall surface around the mounting hole when the embedded playback device is inserted into a mounting hole; wherein the clamping module includes a cylindrical part, a connecting rod, a clamping member and an elastic member; the cylindrical part is disposed on the carrier opposite to the sound output end. The cylindrical portion has one side and extends toward the mounting end; the cylindrical portion has an axial groove and a radial groove connected to the end of the axial groove away from the sound output end; one end of the linkage rod is rotatably disposed at the sound output end, and the other end is rotatably disposed at the cylindrical portion, and the linkage rod has a linkage part located near the radial groove; the clamping member is detachably disposed at the linkage part; the elastic member is sleeved on the linkage rod, and when the clamping member is located in the radial groove, the elastic member is in an elastically stretched state.

2. The broadcasting system as claimed in claim 1, wherein a plurality of embedded playback devices in the area are electrically connected to an external electronic device; the external electronic device is configured to transmit an audio message to one of the plurality of embedded playback devices in the area, so that the plurality of embedded playback devices in the area play the audio message; wherein, When both the control device and the external electronic device transmit the audio message, the processing module prioritizes the embedded playback device to play the audio message from the control device.

3. The broadcast system as claimed in claim 2, wherein the first communication interface is configured to be electrically connected to another embedded playback device to receive the audio message from the other embedded playback device; and the second communication interface is configured to be electrically connected to another embedded playback device to output the audio message to the other embedded playback device.

4. The broadcast system as claimed in claim 3, wherein the audio receiving module includes a wireless transmission unit; the wireless transmission unit is wirelessly and electrically connected to the control device or the external electronic device to receive the audio from the control device or the external electronic device; the wireless transmission unit includes wireless network (WIFI) communication and Bluetooth communication.

5. The broadcast system as claimed in claim 4, wherein the audio receiving module includes an audio input interface; the audio input interface is wired and electrically connected to the control device or the external electronic device to receive the audio from the control device or the external electronic device.

6. The broadcast system as claimed in claim 5, wherein the circuit board module includes a first button; the first button is electrically connected to the processing module and configured to generate a switching signal; the processing module controls the reception of the audio signal via Wi-Fi communication, Bluetooth communication, or an audio input interface according to the switching signal.

7. The broadcast system as claimed in claim 6, wherein the circuit board module includes a second button; the second button is electrically connected to the processing module and configured to generate a pairing signal; the processing module controls the wireless transmission unit to pair with another electronic device via Bluetooth or to connect to a wireless network via wireless network communication based on the pairing signal.

8. The broadcasting system of any one of claims 1 to 7, wherein the circuit board module comprises a circuit board; the circuit board has a sleeve corresponding to the mounting end, and the circuit board is fitted onto the mounting end through the sleeve.

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