CN220983477U - A charging bin magnet polarity judgment device and circuit - Google Patents

Abstract

The utility model relates to the technical field of TWS earphone detection, in particular to a charging bin magnet polarity judging device and a circuit; comprising the following steps: the Hall detector comprises a base, a transmission mechanism, a fixed groove and a Hall detection plate; the fixed groove is fixedly arranged on the base; the transmission mechanism is arranged above the fixed groove and connected with the base, and can move relative to the base; the Hall detection plate is fixedly arranged on the transmission mechanism, a Hall switch is arranged on the Hall detection plate, and the Hall switch is arranged above the charging bin fixing groove and corresponds to the position of the magnet of the charging bin; by designing the magnet magnetism judging device of the charging bin, the charging bin is only required to be placed in the fixed groove with the magnet upwards, and the Hall switch is driven to move through the transmission mechanism for detection, so that manual detection by a worker is not required, and the labor cost is effectively reduced; the detection efficiency is high, the detection accuracy is high, and the mass rapid detection can be realized.

Description

A charging bin magnet polarity judgment device and circuit

Technical Field

The utility model relates to the technical field of TWS earphone detection, in particular to a charging bin magnet polarity judgment device and circuit.

Background technique

The charging cases of TWS earphones on the market are all equipped with magnets, which can be used to adsorb and fix the earphones, enable the earphones, and serve as a Hall switch for the charging case to fix the earphones, as well as control the earphones and the charging case to turn on or off. Currently, the polarity of the magnets on the charging cases of TWS earphones is manually detected and judged by staff. Not only is the detection efficiency low and the labor cost high, but it is also prone to misjudgment, resulting in defective products entering the market.

Therefore, it is extremely important for technical personnel in this field to design a charging bin magnet polarity judgment device and circuit with high detection efficiency, low cost and high accuracy.

Utility Model Content

The technical problem to be solved by the embodiments of the utility model is to provide a charging bin magnet polarity judgment device and circuit with high detection efficiency, low cost and high accuracy, so as to solve the problems in the prior art of low detection efficiency, high labor cost, and easy misjudgment resulting in defective products entering the market.

The utility model discloses a device for judging the polarity of a magnet in a charging bin, which comprises: a base, a transmission mechanism, a fixing slot and a Hall detection plate; the fixing slot is fixedly arranged on the base to fix the charging bin; the transmission mechanism is arranged above the fixing slot and connected to the base, and the transmission mechanism can move relative to the base; the Hall detection plate is fixedly arranged on the transmission mechanism, and a Hall switch is arranged on the Hall detection plate, and the Hall switch is arranged above the fixing slot of the charging bin and corresponds to the position of the magnet of the charging bin.

Optionally, a fixing column is provided on the transmission mechanism, one end of the Hall switch is electrically connected to the Hall detection board, and the other end of the Hall switch passes through the fixing column and extends toward the bottom of the fixing column.

Optionally, two Hall switches are provided on the Hall detection board to detect the south pole and the north pole of the magnet respectively.

Optionally, the base is an L-shaped base, the fixing groove is fixed on the horizontal plane of the L-shaped base, and the transmission mechanism is arranged above the fixing groove and fixed to the vertical plane of the L-shaped base.

Optionally, the transmission mechanism includes a driving member and a movable plate, the driving member is fixed to the vertical surface of the L-shaped base, the driving member is connected to the movable plate, and the driving member can drive the movable plate to move up and down, and drive the Hall switch to move up and down to move away from or close to the fixed groove.

Optionally, the transmission mechanism further includes an elastic member, one end of the elastic member is connected to the movable plate, and the other end of the elastic member is connected to the L-shaped base.

The utility model also provides a charging bin magnet polarity judgment circuit, which is arranged on the above-mentioned Hall detection board, including: a first Hall switch, a second Hall switch, a first indicator light, a second indicator light and a detection interface, the positive poles of the first Hall switch and the second Hall switch are both connected to the power supply, the negative poles of the first Hall switch and the second Hall switch are both grounded, the signal output pins of the first Hall switch and the second Hall switch are both connected to the detection interface, the positive poles of the first indicator light and the second indicator light are both connected to the power supply, and the negative poles of the first indicator light and the second indicator light are respectively connected to different pin rows of the detection interface.

Optionally, the first indicator light and the second indicator light are LED lights of different colors respectively.

Optionally, a first protective resistor is provided between the positive electrode of the first indicator light and the power supply.

Optionally, a second protective resistor is provided between the positive electrode of the second indicator light and the power supply.

Compared with the prior art, the beneficial effect of the charging bin magnet polarity judgment device provided by the embodiment of the utility model is that: by designing a charging bin magnet magnetic judgment device, it is only necessary to place the charging bin with the magnet facing upward in the fixed slot, and drive the Hall switch to move to the magnet through the transmission mechanism to generate an electrical signal, and the polarity of the magnet can be obtained through the electrical signal. The device is simple to operate and does not have high operating requirements for the staff, which effectively reduces labor costs; and the device has high detection efficiency and high detection accuracy, and can achieve large-scale rapid detection.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

FIG1 is a structural schematic diagram of a device for determining the polarity of a magnet in a charging bin provided by an embodiment of the utility model;

FIG2 is a second structural diagram of a device for determining the polarity of a magnet in a charging bin provided by an embodiment of the utility model;

FIG3 is a circuit diagram of a charging bin magnet polarity determination circuit provided in an embodiment of the utility model.

Detailed ways

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

As shown in FIG. 1 to FIG. 3 , the utility model provides a specific embodiment of a device for determining the polarity of a magnet in a charging bin.

A device for determining the polarity of a magnet in a charging bin, referring to FIG1 , comprises: a base 1, a transmission mechanism 2, a fixing slot 3 and a Hall detection plate 4; the fixing slot 3 is fixedly disposed on the base 1 for fixing the charging bin; the transmission mechanism 2 is disposed above the fixing slot 3 and connected to the base 1, and the transmission mechanism 2 can move relative to the base 1; the Hall detection plate 4 is fixedly disposed on the transmission mechanism 2, and a Hall switch 41 is disposed on the Hall detection plate 4, and the Hall switch 41 is disposed above the fixing slot 3 of the charging bin and corresponds to the magnet position of the charging bin.

Specifically, referring to Figure 1, the base 1 is an L-shaped base 1, and the L-shaped base 1 includes a bottom plate 11 on the horizontal plane and a side plate 12 on the vertical plane. The bottom plate 11 is mainly used to place the fixing groove 3, and the side plate 12 is mainly used to install the transmission mechanism 2; when the charging bin magnet polarity judgment device is installed, the fixing groove 3 is placed horizontally on the bottom plate 11, and the side of the transmission mechanism 2 is fixed on the side plate 12, and the Hall detection plate 4 on the transmission mechanism 2 is placed above the fixing groove 3 and as parallel to the fixing groove 3 as possible; and the Hall switch 41 on the Hall detection plate 4 is aligned with the magnet position of the charging bin.

Further, referring to Figure 1, the fixing groove 3 is mainly used to place and fix the charging bin. The inner wall contour of the fixing groove 3 corresponds to the outer contour of the charging bin. When performing polarity detection of the charging bin magnet, the charging bin only needs to be placed in the fixing groove 3 with the magnet facing upward to be positioned; since the relative position of the fixing groove 3 and the transmission mechanism 2 has been adjusted during installation, when the charging bin is placed in the fixing groove 3 with the magnet facing upward, the magnet of the charging bin will be directly below the Hall switch 41.

Further, referring to Figure 1, the Hall detection board 4 is mainly used to detect the polarity of the charging bin magnet. A Hall switch 41 is arranged on the Hall detection board 4. When the charging bin is placed in the fixed slot 3 with the magnet facing upward, the Hall switch 41 is close to the magnet of the charging bin and can sense the magnet to obtain an electrical signal. After obtaining the electrical signal, the Hall detection board 4 detects the polarity of the magnet to determine whether the magnet on the charging bin is south pole or north pole.

Further, referring to Figure 1, the transmission mechanism 2 is mainly used to drive the Hall detection plate 4 to move, and then drive the Hall switch 41 to move. When the charging bin is placed in the fixed slot 3 with the magnet facing upward, the transmission mechanism 2 can drive the Hall detection plate 4 to move downward, and make the Hall switch 41 on the Hall detection plate 4 contact with the magnet on the charging bin to sense and obtain electrical signals, and then detect the polarity of the magnet.

In the prior art, the polarity of the magnet on the charging case of the TWS headset is manually detected and judged by the staff. Not only is the detection efficiency low and the labor cost high, but it is also easy to make misjudgments and cause defective products to enter the market.

In this embodiment, a magnetic determination device for a charging bin magnet is designed. The charging bin only needs to be placed in a fixed slot 3 with the magnet facing upward, and the Hall switch 41 is driven to move onto the magnet through a transmission mechanism 2 to generate an electrical signal. The polarity of the magnet can be obtained through the electrical signal. The device is easy to operate and does not have high operating requirements for the staff, which effectively reduces labor costs. In addition, the device has high detection efficiency and high detection accuracy, and can achieve large-scale rapid detection.

In one embodiment, referring to FIG. 1 , two Hall switches 41 are disposed on the Hall detection board 4 to detect the south pole and the north pole of the magnet respectively.

Specifically, referring to Figure 1, since there are two magnets on the charging compartment, two Hall switches 41 need to be correspondingly set on the Hall detection board 4, and the positions of the two Hall switches 41 correspond to the positions of the two magnets on the charging compartment respectively, and each Hall switch 41 corresponds to detecting the polarity of a magnet.

In one embodiment, referring to Figure 2, the transmission mechanism 2 includes a driving member 21 and a movable plate 22. The driving member 21 is fixed to the vertical surface of the L-shaped base 1, and the driving member 21 is connected to the movable plate 22. The driving member 21 can drive the movable plate 22 to move up and down, and drive the Hall switch 41 to move up and down to move away from or close to the fixed groove 3.

Specifically, referring to Figure 2, the transmission mechanism 2 includes a driving member 21 and a movable plate 22. The driving member 21 is fixedly connected to the side plate 12 of the L-shaped base 1, the top surface of the movable plate 22 is fixedly connected to the output end of the driving member 21, the bottom surface of the movable plate 22 faces the fixed groove 3, and the movable plate 22 is made as parallel to the fixed groove 3 as possible to make the detection more accurate.

Further, referring to Figure 2, the driving member 21 is fixed to the side plate 12 of the L-shaped base 1 through the mounting plate 121. One side of the mounting plate 121 is fixed to the side plate 12 of the L-shaped base 1. A guide hole 122 is provided on the other side of the mounting plate 121. The driving member 21 includes a pressing portion 211 and a guide column 212. The guide column 212 is provided in the guide hole 122 and can move up and down relative to the guide hole 122. One end of the guide column 212 is fixedly connected to the top surface of the movable plate 22 as the output end of the driving member 21. By pressing the pressing portion 211, the guide column 212 can be moved downward, and the movable plate 22 can be driven to move up and down, thereby driving the Hall detection plate 4 and the Hall switch 41 to move up and down to move away from or close to the fixed groove 3.

In one embodiment, referring to FIG. 2 , a fixed column 23 is further provided on the transmission mechanism 2 , one end of the Hall switch 41 is electrically connected to the Hall detection board 4 , and the other end of the Hall switch 41 passes through the fixed column 23 and extends downwardly from the fixed column 23 .

Specifically, referring to Figure 2, the fixed column 23 is fixed to the bottom surface of the movable plate 22, and a through hole for accommodating the Hall switch 41 is provided inside the fixed column 23. The Hall detection plate 4 is placed on the top surface of the movable plate 22 with the Hall switch 41 facing downward. The Hall switch 41 passes through the through holes in the movable plate 22 and the fixed column 23 and extends toward the fixed slot 3 to facilitate magnet detection.

In one embodiment, referring to FIG. 2 , the transmission mechanism 2 further includes an elastic member 24 , one end of the elastic member 24 is connected to the moving plate 22 , and the other end of the elastic member 24 is connected to the L-shaped base 1 .

Specifically, referring to Figure 2, the elastic member 24 is mainly used to reset the movable plate 22 after it is driven downward by the driving member 21. One end of the elastic member 24 is fixedly connected to the bottom plate 11 of the L-shaped base 1, and the other end of the elastic member 24 is fixedly connected to the bottom surface of the movable plate 22.

When it is necessary to detect the polarity of the magnet in the charging bin, under the elastic force of the elastic member 24, the movable plate 22 will be pushed to the upper position of the fixed slot 3, and the charging bin to be detected is placed in the fixed slot 3 with the magnet facing upwards, and then the pressing portion 211 is pressed to move the movable plate 22 downward, and the Hall switch 41 on the Hall detection plate 4 is brought close to the magnet on the charging bin to sense and obtain an electrical signal. After obtaining the electrical signal, the polarity is detected through the Hall detection plate 4, and the pressing portion 211 is released. The movable plate 22 is pushed to the upper position of the fixed slot 3 again under the elastic force of the elastic member 24, and the detected charging bin is taken out.

As shown in FIG. 3 , the utility model also provides a specific embodiment of a charging bin magnet polarity judgment circuit.

A charging bin magnet polarity judgment circuit, referring to Figures 1 and 3, the charging bin magnet polarity judgment circuit is arranged on the above-mentioned Hall detection board 4, specifically including: a first Hall switch 41, a second Hall switch 41, a first indicator light D1, a second indicator light D2 and a detection interface J1, the positive poles of the first Hall switch 41 and the second Hall switch 41 are both connected to the power supply VCC, the negative poles of the first Hall switch 41 and the second Hall switch 41 are both grounded, the signal output pins of the first Hall switch 41 and the second Hall switch 41 are both connected to the detection interface J1, the positive poles of the first indicator light D1 and the second indicator light D2 are both connected to the power supply VCC, and the negative poles of the first indicator light D1 and the second indicator light D2 are respectively connected to the S pin row and the N pin row of the detection interface J1.

The Hall switch is an electronic switching device based on the Hall effect. The Hall effect refers to the phenomenon that when current passes through a conductor with a magnetic field, a voltage difference will be generated on one side of the conductor. This phenomenon is called the Hall effect. The Hall switch utilizes this effect to control the switching state by measuring changes in the magnetic field. Using this characteristic of the Hall switch, the charging compartment magnet can be sensed to detect its polarity.

Specifically, referring to Figure 3, the detection interface J1 includes a GND pin, an S pin row and an N pin row. The GND pin of the detection interface J1 is grounded, the S pin row of the detection interface J1 is connected to the first Hall switch 41, and the N pin row of the detection interface J1 is connected to the second Hall switch 41; the positive pole of the first Hall switch 41 is connected to the power supply VCC, the negative pole of the first Hall switch 41 is grounded, the signal output pin of the first Hall switch 41 is connected to the S pin row of the detection interface J1, the positive pole of the first indicator light D1 is connected to the power supply VCC, the negative pole of the first indicator light D1 is connected to the S pin row of the detection interface J1, and a first protection resistor R1 is also provided between the positive pole of the first indicator light D1 and the power supply VCC.

3 , when the south pole of the magnet is detected, the first indicator light D1 is on, and the S pin of the detection interface J1 will output a low level; when no magnet is detected, the first indicator light D1 is off, and the S pin of the detection interface J1 outputs a high level.

Further, referring to Figure 3, the positive pole of the second Hall switch 41 is connected to the power supply VCC, the negative pole of the second Hall switch 41 is grounded, the signal output pin of the second Hall switch 41 is connected to the N pin row of the detection interface J1, the positive pole of the second indicator light D2 is connected to the power supply VCC, the negative pole of the second indicator light D2 is connected to the N pin row of the detection interface J1, and a second protection resistor R2 is also provided between the positive pole of the second indicator light D2 and the power supply VCC.

3 , when the north pole of the magnet is detected, the second indicator light D2 is on, and the N-pin row of the detection interface J1 will output a low level; when no magnet is detected, the second indicator light D2 is off, and the N-pin row of the detection interface J1 outputs a high level.

In one embodiment, in order to distinguish the display, the first indicator light D1 and the second indicator light D2 are LED lights of different colors; for example, the first indicator light D1 is a blue LED light, and the second indicator light D2 is a red LED light.

It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims (10)

1. A charging bin magnet polarity determination device, comprising: the Hall detector comprises a base, a transmission mechanism, a fixed groove and a Hall detection plate; the fixed groove is fixedly arranged on the base and used for fixing the charging bin; the transmission mechanism is arranged above the fixed groove and connected with the base, and can move relative to the base; the Hall detection plate is fixedly arranged on the transmission mechanism, a Hall switch is arranged on the Hall detection plate, and the Hall switch is arranged above the charging bin fixing groove and corresponds to the magnet position of the charging bin.

2. The charge compartment magnet polarity determination device according to claim 1, wherein a fixing column is provided on the transmission mechanism, one end of the hall switch is electrically connected with the hall detection plate, and the other end of the hall switch passes through the fixing column and extends toward the lower side of the fixing column.

3. The charge compartment magnet polarity determining device of claim 1, wherein two hall switches are provided on the hall sensing board to detect the south and north poles of the magnet, respectively.

4. The charging bin magnet polarity determination device according to claim 1, wherein the base is an L-shaped base, the fixing groove is fixed on a horizontal plane of the L-shaped base, and the transmission mechanism is disposed above the fixing groove and fixed with a vertical plane of the L-shaped base.

5. The charge compartment magnet polarity determining device of claim 4, wherein the transmission mechanism comprises a driving member and a moving plate, the driving member is fixed to a vertical surface of the L-shaped base, the driving member is connected to the moving plate, and the driving member can drive the moving plate to move up and down and drive the hall switch to move up and down so as to be away from or close to the fixing slot.

6. The charge compartment magnet polarity determining device of claim 5, wherein the transmission mechanism further comprises an elastic member, one end of the elastic member is connected to the moving plate, and the other end of the elastic member is connected to the L-shaped base.

7. A polarity determining circuit for a magnet of a charging bin, provided on the hall sensing board according to any one of claims 1 to 6, comprising: the device comprises a first Hall switch, a second Hall switch, a first indicator lamp, a second indicator lamp and a detection interface, wherein the positive poles of the first Hall switch and the second Hall switch are all connected with a power supply, the negative poles of the first Hall switch and the second Hall switch are all grounded, the signal output pins of the first Hall switch and the second Hall switch are all connected with the detection interface, the positive poles of the first indicator lamp and the second indicator lamp are all connected with the power supply, and the negative poles of the first indicator lamp and the second indicator lamp are respectively connected with different pin bars of the detection interface.

8. The charge compartment magnet polarity determination circuit of claim 7 wherein the first indicator light and the second indicator light are LED lights of different colors, respectively.

9. The charge compartment magnet polarity determination circuit of claim 7, wherein the positive pole of the first indicator light is provided with a first protection resistor connected to a power source.

10. The charge compartment magnet polarity determination circuit of claim 7, wherein the positive pole of the second indicator light is provided with a second protection resistor connected to a power source.