Bluetooth power amplifier PCBA with electrostatic protection function
By designing an electrostatic protection system with conductive materials and ground wires on the Bluetooth amplifier PCBA board, the problem of traditional PCBA board being susceptible to static electricity is solved, and effective electrostatic conduction and protection are achieved.
Patent Information
- Application Number
- CN202421795625.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Traditional Bluetooth amplifier PCBA boards are susceptible to static electricity when used, resulting in electrostatic breakdown and inconvenient use.
A Bluetooth amplifier PCBA with electrostatic protection function was designed. By setting the outer shell, end cover, spring, limit plate, inner shell and base, the conduction material and ground wire can be used to achieve static conduction and release of static electricity.
It effectively reduces the risk of PCBA board being affected by static electricity. Through the design of conductive materials and ground wires, it ensures that the electrostatic charge can be safely directed to the ground, thereby protecting the PCBA board.
Smart Images
Figure CN222916186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCBA, and in particular to a Bluetooth power amplifier PCBA with an electrostatic protection function. Background Art
[0002] PCBA is the abbreviation of Printed Circuit Board Assembly, which means the entire process of a blank PCB board going through SMT mounting or DIP plug-in, referred to as PCBA.
[0003] Static electricity is a static charge or a non-flowing charge. When charges gather on an object or surface, static electricity is formed. Charges are divided into positive and negative charges, which means that static electricity is also divided into positive and negative static electricity. When positive charges gather on an object, positive static electricity is formed. When negative charges gather on an object, negative static electricity is formed. However, whether it is positive static electricity or negative static electricity, when an object with static electricity contacts an object with zero potential or an object with a potential difference, charge transfer will occur, which is the spark discharge phenomenon we see in daily life.
[0004] When using the traditional Bluetooth amplifier PCBA board, there are a large number of electronic components on the PCBA board, which will generate static electricity during operation. When the amount of static electricity is relatively large, the PCBA board may be broken down, thereby damaging the PCBA board. At the same time, static electricity will also be generated on the outside of the PCBA board, affecting the use of the PCBA board. Therefore, a Bluetooth amplifier PCBA with static electricity protection function is proposed to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by the utility model overcomes the existing defects and can effectively solve the problems in the background technology.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A Bluetooth power amplifier PCBA with an electrostatic protection function comprises a PCBA board and a fixing ring, wherein the inner side of the PCBA board is fixedly connected with the fixing ring, the inner side of the fixing ring is fixedly connected with an outer shell, the bottom end of the outer shell is fixedly connected with an end cover, the inner side of the end cover is slidably connected with an inner shell, and the outer side of the bottom end of the inner shell is spirally connected with a base.
[0008] Preferably, a limit plate is fixedly connected to the top end of the inner shell, and the limit plate is slidably connected to the outer shell.
[0009] Preferably, a spring is fixedly connected to the top end of the limit plate, and the other end of the spring is fixedly connected to the outer shell, and the spring gives the limit plate a downward elastic force.
[0010] Preferably, one end of the base is fixedly connected with a winding column, and a grounding wire is wound around the outer side of the winding column. One end of the grounding wire is fixedly connected with the winding column, and the other end of the grounding wire is fixedly connected with the inner shell.
[0011] Preferably, the inner shell is hollow, and the winding column and the grounding wire can be placed inside the inner shell.
[0012] Preferably, a through groove is formed in the inner side of the bottom end of the inner shell.
[0013] Preferably, a rubber ring is slidably connected to the outer side of the inner shell, and grooves are formed around the rubber ring.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. A Bluetooth power amplifier PCBA with electrostatic protection function. When the device is used, the device is fixed inside a corresponding shell, such as being fixed inside the shell of a Bluetooth player. At the same time, a hole that can be engaged with the groove on the outer side of the rubber ring is opened at the bottom of the Bluetooth player shell, so that the rubber ring is engaged with the hole through the groove. At the same time, under the action of the spring, the limiting plate will also drive the inner shell to extend out from the bottom end of the Bluetooth player shell and contact the desktop through the base. When placed on a conductive desktop for use, the base will contact the desktop, and the charge of the PCBA board will be transmitted to the desktop through the fixing ring, the end cover, the limiting plate, the inner shell and the base, and then the desktop will transmit it to the ground, thereby effectively reducing the influence of static electricity on the PCBA board.
[0016] 2. A Bluetooth power amplifier PCBA with electrostatic protection function. When placed on a non-conductive desktop for use, the base and the inner shell can be separated, then the grounding wire on the surface of the winding column can be spread out, and then the base is placed on the ground so that the base is in direct contact with the ground, guiding the charge of the PCBA board to the ground, thereby effectively reducing the influence of static electricity on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Figure 1This is a schematic diagram of the overall structure of a Bluetooth power amplifier PCBA with electrostatic protection function of the present utility model.
[0019] Figure 2 This is a schematic diagram of the installation structure when the grounding wire of a Bluetooth power amplifier PCBA with electrostatic protection function of the present utility model is not in use.
[0020] Figure 3 This is a schematic diagram of the installation structure when the grounding wire of a Bluetooth power amplifier PCBA with electrostatic protection function of the present utility model is in use.
[0021] Figure 4 This is a schematic diagram of the installation structure of the through slot of a Bluetooth power amplifier PCBA with electrostatic protection function of the present utility model.
[0022] Figure 5 This is a schematic diagram of the installation structure of the limiting plate of a Bluetooth power amplifier PCBA with electrostatic protection function of the present utility model.
[0023] In the figure: 1, PCBA board; 2, fixing ring; 3, outer shell; 4, end cover; 5, spring; 6, limiting plate; 7, inner shell; 8, through slot; 9, grounding wire; 10, winding column; 11, base; 12, rubber ring; 13, groove. Specific embodiments
[0024] The following further describes the present utility model in conjunction with specific embodiments. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent. In order to better illustrate the specific embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present utility model, all other specific embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0025] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The present utility model will be further described below in conjunction with specific embodiments.
[0026] Embodiment
[0027] As Figures 1-5 shown, a Bluetooth power amplifier PCBA with electrostatic protection function includes a PCBA board 1 and a fixing ring 2. The fixing ring 2 is fixedly connected to the inner side of the PCBA board 1. The outer shell 3 is fixedly connected to the inner side of the fixing ring 2. The end cover 4 is fixedly connected to the bottom end of the outer shell 3. The inner shell 7 is slidably connected to the inner side of the end cover 4. The base 11 is screwed to the outer side of the bottom end of the inner shell 7. The fixing ring 2, the outer shell 3, the end cover 4, the inner shell 7 and the base 11 are all made of conductive materials. When placed on a conductive desktop for use, the base 11 will contact the desktop, and at the same time, the charge of the PCBA board 1 will be transmitted to the desktop through the fixing ring 2, the end cover 4, the outer shell 3, the inner shell 7 and the base 11, and then the desktop will transmit it to the ground, thereby effectively reducing the influence of static electricity on the PCBA board 1.
[0028] As a further improvement of the present utility model, as Figure 2 、 Figure 3 and Figure 5 shown, a limiting plate 6 is fixedly connected to the top end of the inner shell 7, and the limiting plate 6 is slidably connected to the outer shell 3. The limiting plate 6 can prevent the inner shell 7 and the end cover 4 from falling off each other.
[0029] As a further improvement of the present utility model, as Figure 2 、 Figure 3 shown, a spring 5 is fixedly connected to the top end of the limiting plate 6, and the other end of the spring 5 is fixedly connected to the outer shell 3. And the spring 5 gives a downward elastic force to the limiting plate 6. Under the action of the elastic force of the spring 5, the limiting plate 6 can make the inner shell 7 and the base 11 closely contact with the desktop, etc.
[0030] As a further improvement of the present utility model, as Figure 3 and Figure 4As shown, one end of the base 11 is fixedly connected to a winding column 10. An earthing wire 9 is wound around the outer side of the winding column 10. One end of the earthing wire 9 is fixedly connected to the winding column 10, and the other end of the earthing wire 9 is fixedly connected to the inner housing 7. When it is placed on a non-conductive table for use, the base 11 can be separated from the inner housing 7, then the earthing wire on the surface of the winding column 10 can be unwound, and then the base 11 is placed on the ground so that the base 11 is in direct contact with the ground, guiding the charge of the PCBA board 1 to the ground, thereby effectively reducing the influence of static electricity on the PCBA board 1.
[0031] As a further improvement of the present utility model, as Figure 3 and Figure 4 shown, the inner housing 7 is provided with a hollow interior, and the winding column 10 and the earthing wire 9 can be placed inside the inner housing 7. When the earthing wire 9 is not in use, it can be stored inside the inner housing 7 for convenient use.
[0032] As a further improvement of the present utility model, as Figure 4 shown, a through groove 8 is opened on the inner side of the bottom end of the inner housing 7. When the earthing wire 9 is in use, the earthing wire 9 passes through the through groove 8, thereby preventing the inner housing 7 from pressing on the earthing wire 9.
[0033] As a further improvement of the present utility model, as Figure 1 、 Figure 2 、 Figure 3 and Figure 5 shown, a rubber ring 12 is slidably connected to the outer side of the inner housing 7. Grooves 13 are opened around the rubber ring 12. A hole that can be engaged with the groove 13 on the outer side of the rubber ring 12 is opened at the bottom of the Bluetooth player housing, so that the rubber ring 12 is engaged with the hole through the groove 13. The rubber ring 12 ensures the sealing between the inner housing 7 and the Bluetooth player housing, and at the same time ensures that the inner housing 7 can move in the vertical direction.
[0034] Workflow: When this device is in use, it is fixed to the inner side of the corresponding housing. For example, it is fixed to the inner side of the Bluetooth player housing. A hole that can be engaged with the groove 13 on the outer side of the rubber ring 12 is opened at the bottom of the Bluetooth player housing, so that the rubber ring 12 is engaged with the hole through the groove 13. The rubber ring 12 ensures the sealing between the inner housing 7 and the Bluetooth player housing, and at the same time ensures that the inner housing 7 can move in the vertical direction. Also, a groove can be opened at the bottom end of the Bluetooth player housing, so that the grounding wire 9 can pass through the groove to prevent the Bluetooth player housing from pressing on the grounding wire 9 and improve the service life of the grounding wire 9. At the same time, under the action of the spring 5, the limiting plate 6 will also drive the inner housing 7 to extend from the bottom end of the Bluetooth player housing and contact the desktop through the base 11. When placed on a conductive desktop for use, the base 11 will contact the desktop, and at the same time, the charge of the PCBA board 1 will be transmitted to the desktop through the fixing ring 2, the end cover 4, the limiting plate 6, the inner housing 7 and the base 11, and then the desktop will transmit it to the ground, thereby effectively reducing the influence of static electricity on the PCBA board 1; when placed on a non-conductive desktop for use, the base 11 can be separated from the inner housing 7, then the grounding wire 9 on the surface of the winding column 10 can be spread out, and then the base 11 is placed on the ground so that the base 11 is in direct contact with the ground, guiding the charge of the PCBA board 1 to the ground, thereby effectively reducing the influence of static electricity on the PCBA board 1.
[0035] The above is the preferred embodiment of the present utility model. The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the protection scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The protection scope claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A Bluetooth power amplifier PCBA with electrostatic protection function, comprising a PCBA board (1) and a fixing ring (2), characterized in that: A fixing ring (2) is fixedly connected to the inner side of the PCBA board (1), an outer shell (3) is fixedly connected to the inner side of the fixing ring (2), an end cover (4) is fixedly connected to the bottom end of the outer shell (3), an inner shell (7) is slidably connected to the inner side of the end cover (4), and a base (11) is spirally connected to the outer side of the bottom end of the inner shell (7).
2. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 1, characterized in that: The top end of the inner shell (7) is fixedly connected to a limit plate (6), and the limit plate (6) is slidably connected to the outer shell (3).
3. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 2, characterized in that: The top end of the limit plate (6) is fixedly connected to a spring (5), and the other end of the spring (5) is fixedly connected to the outer shell (3), and the spring (5) gives the limit plate (6) a downward elastic force.
4. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 1, characterized in that: One end of the base (11) is fixedly connected to a winding column (10), a grounding wire (9) is wound around the outside of the winding column (10), one end of the grounding wire (9) is fixedly connected to the winding column (10), and the other end of the grounding wire (9) is fixedly connected to the inner shell (7).
5. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 1, characterized in that: The inner shell (7) is hollow, and the winding column (10) and the grounding wire (9) can be placed inside the inner shell (7).
6. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 1, characterized in that: A through groove (8) is provided on the inner side of the bottom end of the inner shell (7).
7. The Bluetooth power amplifier PCBA with electrostatic protection function according to claim 1, characterized in that: A rubber ring (12) is slidably connected to the outer side of the inner shell (7), and grooves (13) are formed around the rubber ring (12).