A CD player with a CD tray door state detecting device

Abstract

A CD player with CD machine warehouse door state detection device, including CD machine warehouse door, main body face shell and CD machine warehouse door state detection device, CD machine warehouse door state detection device includes Hall induction switch, magnetic piece and main control chip, Hall induction switch is built-in Hall sensor unit, CD machine warehouse door is rotatably connected with main body face shell to make CD machine warehouse door open or close, magnetic piece is embedded in the inner wall of CD machine warehouse door can with Hall induction switch corresponding position, Hall induction switch is installed in the inside of main body face shell, Hall induction switch is electrically connected with main control chip, when CD machine warehouse door is closed, the induction surface of Hall induction switch and the position of magnetic piece correspond, when CD machine warehouse door is opened, the relative position of Hall induction switch and magnetic piece changes and leads to the change of magnetic field intensity, the Hall sensor unit of Hall induction switch outputs the warehouse door state signal of CD machine to main control chip by detecting the change of magnetic field intensity, this kind of CD player has the characteristics of saving space and strong reliability.

Description

Technical Field

[0001] This utility model relates to the field of CD player technology, and specifically to a CD player with a CD player tray door status detection device. Background Technology

[0002] Traditional CD player tray opening / closing detection generally relies on physical switches, which has two significant drawbacks: First, it occupies a large internal space, compressing the layout space of other core components and affecting the flexibility of the overall structural design. Second, it requires externally reserved switch interfaces or trigger points, resulting in protrusions or gaps on the surface of the device, making it difficult to achieve a clean and unified design style and affecting the product's aesthetics. Furthermore, physical switches are prone to poor contact due to mechanical wear and dust accumulation over long-term use, reducing detection reliability and lifespan. Therefore, there is an urgent need for a CD player with an integrated CD tray status detection device to solve these problems. Utility Model Content

[0003] In view of this, a CD player with a CD tray door status detection device is provided, which can save space and has high reliability.

[0004] A CD player with a CD tray door status detection device includes a CD tray door, a main body shell, and a CD tray door status detection device. The CD tray door status detection device includes a Hall effect sensor switch, a magnetic component, and a main control chip. The Hall effect sensor switch has a built-in Hall sensor unit. The CD tray door is rotatably connected to the main body shell to open or close the CD tray door. The magnetic component is embedded in the inner wall of the CD tray door at a position corresponding to the Hall effect sensor switch. The Hall effect sensor switch is installed inside the main body shell and is electrically connected to the main control chip. When the CD tray door is closed, the sensing surface of the Hall effect sensor switch corresponds to the position of the magnetic component. When the CD tray door is opened, the relative position of the Hall effect sensor switch and the magnetic component changes, causing a change in magnetic field strength. The Hall sensor unit of the Hall effect sensor switch outputs a CD tray door status signal to the main control chip by detecting the change in magnetic field strength.

[0005] Furthermore, the CD player also includes a speaker cavity and a PCBA main board. The speaker cavity is detachably mounted below the main body shell, and the PCBA main board is mounted inside the speaker cavity. The Hall effect sensor switch includes a pin portion, and the main control chip and the pin portion of the Hall effect sensor switch are soldered to the PCBA main board.

[0006] Furthermore, the Hall sensor switch also includes a Hall plate portion, which is a rectangular semiconductor single crystal thin film. The Hall plate portion houses the Hall sensor unit. The Hall plate portion is located above the pin portion. The speaker cavity is provided with a first through hole. The main body shell is provided with a second through hole corresponding to the first through hole. The Hall plate portion passes through the first through hole and the second through hole in sequence and extends into the main body shell.

[0007] Furthermore, the magnetic component is embedded along the thickness direction of the CD player door, and the magnetic pole direction of the magnetic component is perpendicular to the sensing surface of the Hall effect sensor switch.

[0008] Furthermore, the inner wall of the CD player compartment door is provided with a groove for accommodating the magnetic component, which is fixed in the groove by glue or a snap-fit ​​structure.

[0009] Furthermore, the sensing sensitivity range of the Hall effect sensor is ±40 Gauss.

[0010] Furthermore, the magnetic component is a cuboid structure with dimensions of 5mm × 3mm × 2mm. When the CD player door is closed, the distance between the Hall effect sensor switch and the magnetic component is less than or equal to 2mm.

[0011] Furthermore, the CD player tray door status detection device does not have a physical switch located outside the CD player tray door; the Hall effect sensor switch is the only switch for the CD player.

[0012] Furthermore, the CD player tray door status detection device also includes an audible and visual alarm. The main control chip is electrically connected to the audible and visual alarm, which is used to receive the instruction signal sent by the main control chip when the CD player tray door is opened and issue an audible and visual warning.

[0013] Furthermore, the audible and visual alarm has a built-in buzzer and LED indicator.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The aforementioned CD player employs a Hall effect sensor switch and magnetic components, significantly reducing internal space occupancy. Specifically, the magnetic component is embedded in the inner wall of the CD player's tray door at a position corresponding to the Hall effect sensor switch. The Hall effect sensor switch is installed inside the main body casing, essentially hidden within the CD player, which helps save space. Furthermore, traditional physical switches are prone to poor contact due to mechanical wear or dust accumulation, reducing detection reliability. This CD player uses a Hall effect sensor switch to detect changes in the magnetic field in real time, eliminating mechanical wear and poor contact, resulting in fast response, high detection accuracy, and strong reliability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a CD player with a CD player tray door status detection device in the closed state according to an embodiment of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the CD player with a CD player tray door status detection device in the open state according to an embodiment of the present utility model.

[0017] Figure 3 This is an exploded view of the structure of a CD player with a CD player tray door status detection device according to an embodiment of the present invention.

[0018] In the picture, 1. CD player tray door; 2. Main body shell; 3. Hall effect sensor switch; 4. Magnetic component; 5. Groove; 6. Speaker cavity; 7. PCBA main board; 8. Pin section; 9. Hall effect sensor section; 10. First through hole; 11. Second through hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 3 This illustration shows an embodiment of the present invention providing a CD player with a CD tray door status detection device, including a CD tray door 1, a main body shell 2, and a CD tray door status detection device. The CD tray door status detection device includes a Hall effect switch 3, a magnetic component 4, and a main control chip. The Hall effect switch 3 has a built-in Hall sensor unit. The CD tray door 1 is rotatably connected to the main body shell 2 to open or close the CD tray door 1. The magnetic component 4 is embedded in the inner wall of the CD tray door 1 at a position corresponding to the Hall effect switch 3. For example, the Hall effect switch 3... The Hall effect sensor 3 is installed inside the main body shell 2. The Hall effect sensor 3 is electrically connected to the main control chip. When the CD player tray door 1 is closed, the sensing surface of the Hall effect sensor 3 corresponds to the position of the magnetic component 4. When the CD player tray door 1 is opened, the relative position of the Hall effect sensor 3 and the magnetic component 4 changes, causing a change in the magnetic field strength. The Hall sensor unit of the Hall effect sensor 3 outputs the CD player tray door status signal to the main control chip by detecting the change in magnetic field strength. The main control chip is preferably the ATTINY406-MFR model.

[0021] Specifically, the CD player also includes a speaker cavity 6 and a PCBA main board 7. The speaker cavity 6 is detachably mounted below the main body shell 2. The PCBA main board 7 is mounted inside the speaker cavity 6. The Hall effect sensor 3 includes a pin portion 8. The main control chip and the pin portion 8 of the Hall effect sensor 3 are soldered to the PCBA main board 7.

[0022] More specifically, the Hall sensor switch 3 further includes a Hall plate portion, which is a rectangular semiconductor single crystal thin film. The Hall plate portion houses the Hall sensor unit. The Hall plate portion is located above the pin portion 8. The speaker cavity 6 is provided with a first through hole 10. The main body shell 2 is provided with a second through hole 11 corresponding to the first through hole 10. The Hall plate portion passes through the first through hole 10 and the second through hole 11 in sequence and extends into the main body shell 2.

[0023] Specifically, the magnetic component 4 is embedded along the thickness direction of the CD player door 1. According to the Hall effect, the magnetic pole direction of the magnetic component 4 should be perpendicular to the sensing surface of the Hall sensor switch 3 to ensure that the amount of magnetic field lines passing through the Hall sensor switch 3 is maximized, thereby obtaining accurate magnetic field strength measurement results.

[0024] Specifically, the inner wall of the CD player door 1 is provided with a groove 5 for accommodating the magnetic component 4, and the magnetic component 4 is preferably fixed in the groove 5 by glue or a snap-fit ​​structure.

[0025] Specifically, the sensing sensitivity range of the Hall effect sensor 3 is preferably ±40 Gauss.

[0026] Specifically, the magnetic component 4 is preferably a cuboid structure with length, width and height dimensions of 5mm×3mm×2mm. When the CD player door 1 is closed, the distance between the Hall effect sensor switch 3 and the magnetic component 4 is less than or equal to 2mm.

[0027] In some specific embodiments, the CD player's tray door status detection principle is based on the magnetic field sensing characteristics of the Hall effect sensor 3. Specifically, a magnetic component 4 is embedded in the inner wall of the CD player tray door 1 as a magnetic field signal source. When the CD player tray door 1 is opened or closed, the magnetic component 4 and the Hall effect sensor 3 installed inside the main body shell 2 undergo relative displacement, and the magnetic field strength changes accordingly. The sensing sensitivity of the Hall effect sensor 3 is ±40 Gauss. When the CD player tray door 1 is closed, that is, when the CD player tray door 1 is in contact with the main body shell 2, the magnetic component 4 is positioned within 2mm of the sensing surface of the Hall effect sensor 3 to ensure that the Hall effect sensor 3 is triggered. At this time, the magnetic field strength sensed by the Hall effect sensor 3 is the preset threshold. The Hall sensor unit inside the Hall effect sensor 3 converts the magnetic field strength into an electrical signal, which is transmitted to the main control chip. If the Hall effect sensor 3 detects that the magnetic field strength is lower than the preset threshold, it indicates that the CD player tray door 1 is not closed, and the main control chip will control the audible and visual alarm to issue an audible and visual warning. The entire process does not require mechanical contact and is a non-contact detection method with a rapid response.

[0028] Specifically, the CD player tray door status detection device does not have a physical switch located outside the CD player tray door 1, and the Hall effect sensor switch 3 is the only switch of the CD player.

[0029] Specifically, the CD player tray door status detection device also includes an audible and visual alarm. The main control chip is electrically connected to the audible and visual alarm. The audible and visual alarm is used to receive the instruction signal sent by the main control chip when the CD player tray door 1 is opened and issue an audible and visual warning.

[0030] More specifically, the audible and visual alarm has a built-in buzzer and LED indicator.

[0031] In summary, the aforementioned CD player utilizes a Hall effect sensor switch 3 and a magnetic component 4 to significantly reduce internal space occupancy. Specifically, the magnetic component 4 is embedded in the inner wall of the CD player's tray door 1 at a position corresponding to the Hall effect sensor switch 3. The Hall effect sensor switch 3 is installed inside the main body shell 2, effectively hiding the detection device within the CD player, which saves space. Furthermore, traditional physical switches are prone to poor contact due to mechanical wear or dust accumulation, reducing detection reliability. This CD player uses the Hall effect sensor switch 3 to detect changes in the magnetic field in real time, eliminating mechanical wear and poor contact. It offers fast response, high detection accuracy, and strong reliability. In addition, this device eliminates external physical switches, achieving a clean and simple appearance, aligning with the modern consumer electronics' pursuit of minimalist aesthetics and enhancing the user's visual experience.

[0032] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A CD player with a CD tray door status detection device, comprising a CD tray door, a main body shell, and a CD tray door status detection device, characterized in that, The CD player tray door status detection device includes a Hall effect sensor switch, a magnetic component, and a main control chip. The Hall effect sensor switch has a built-in Hall sensor unit. The CD player tray door is rotatably connected to the main body shell to open or close the CD player tray door. The magnetic component is embedded in the inner wall of the CD player tray door at a position corresponding to the Hall effect sensor switch. The Hall effect sensor switch is installed inside the main body shell and is electrically connected to the main control chip. When the CD player tray door is closed, the sensing surface of the Hall effect sensor switch corresponds to the position of the magnetic component. When the CD player tray door is opened, the relative position of the Hall effect sensor switch and the magnetic component changes, causing a change in magnetic field strength. The Hall sensor unit of the Hall effect sensor switch outputs the CD player tray door status signal to the main control chip by detecting the change in magnetic field strength.

2. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The CD player also includes a speaker cavity and a PCBA main board. The speaker cavity is detachably mounted below the main body shell, and the PCBA main board is mounted inside the speaker cavity. The Hall effect sensor includes a pin portion, and the main control chip and the pin portion of the Hall effect sensor are soldered to the PCBA main board.

3. A CD player with a CD tray door status detection device as described in claim 2, characterized in that, The Hall sensor switch further includes a Hall plate portion, which is a rectangular semiconductor single crystal thin film. The Hall plate portion has the Hall sensor unit built into it. The Hall plate portion is located above the pin portion. The speaker cavity is provided with a first through hole. The main body shell is provided with a second through hole corresponding to the first through hole. The Hall plate portion passes through the first through hole and the second through hole in sequence and extends into the main body shell.

4. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The magnetic component is embedded along the thickness direction of the CD player door, and the magnetic pole direction of the magnetic component is perpendicular to the sensing surface of the Hall effect sensor switch.

5. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The inner wall of the CD player compartment door is provided with a groove for accommodating the magnetic component, which is fixed in the groove by glue or a snap-fit ​​structure.

6. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The Hall effect sensor has a sensitivity range of ±40 Gauss.

7. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The magnetic component is a cuboid structure with dimensions of 5mm × 3mm × 2mm. When the CD player door is closed, the distance between the Hall effect sensor switch and the magnetic component is less than or equal to 2mm.

8. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The CD player tray door status detection device does not have a physical switch located outside the CD player tray door; the Hall effect sensor switch is the only switch for the CD player.

9. A CD player with a CD tray door status detection device as described in claim 1, characterized in that, The CD player tray door status detection device also includes an audible and visual alarm. The main control chip is electrically connected to the audible and visual alarm. The audible and visual alarm is used to receive the instruction signal sent by the main control chip when the CD player tray door is opened and issue an audible and visual warning.

10. A CD player with a CD tray door status detection device as described in claim 9, characterized in that, The sound and light alarm has a built-in buzzer and LED indicator.

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