A wireless charging signal detector

Abstract

The utility model relates to the technical field of electromagnetic induction, and specifically to a wireless charging signal detector, including a PCB board, a ring coil, a rectifier module and an indicator light, wherein the PCB board is in a regular shape; the ring coil is arranged on the PCB board, and includes a first connection end and a second connection end; the rectifier module is connected to the first connection end of the ring coil on one side, and is connected to the second connection end of the ring coil on the other side, and a closed circuit unit is formed after the rectifier module and the ring coil are connected; the indicator light is electrically connected to the rectifier module; the ring coil senses a current signal, and the current signal forms a direct current after passing through the rectifier module, and the direct current then transmits the indicator light and lights up the indicator light. Moreover, the greater the electromagnetic energy, the greater the brightness of the indicator light, and the magnitude of the magnetic field energy at the location can be intuitively observed through the brightness of the indicator light, thereby detecting whether the magnetic field strength of the coil of the wireless charger meets the standard, and reflecting the quality of the charging function of the product charger.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic induction, in particular to a wireless charging signal detector. Background Art

[0002] The principle of wireless charging technology is to use the interaction of magnetic fields to transfer electrical energy from the transmitter to the receiver, so as to realize the function of charging without the need for traditional cable connection. Wireless charging technology mainly consists of two parts, the transmitter and the receiver. The transmitter usually contains a power supply and a transmitting coil, while the receiver contains a receiving coil and a battery. When the power supply is connected to the transmitting coil, the power supply generates an alternating current. This current generates an alternating magnetic field in the transmitting coil. Because the alternating current causes the direction of the current to change continuously, the alternating magnetic field will also change continuously. Subsequently, the alternating magnetic field in the transmitting coil will interact with the receiving coil in the receiver. When the receiving coil of the receiver meets the magnetic field of the transmitting coil, a current will be induced in the receiving coil. This induced current can be used to charge the battery in the receiver. Wireless charging has the characteristics of charging and placing at any time, no buckle, and strong versatility, and is increasingly liked and used by consumers. At present, the wireless charging function has become an indispensable function in the mobile phone market.

[0003] There are more and more types of wireless chargers on the market. In addition to traditional single-coil wireless chargers, there are also multi-coil wireless chargers, long-distance wireless chargers and other special products. In electromagnetic induction wireless chargers, the transmitting coil will generate an electromagnetic field, and the strength of the electromagnetic field represents the power transmission capacity. When developing or testing a product, the strength of the magnetic field of the detection coil can reflect the quality of the product function. However, there is currently no simple and intuitive detection tool for the strength of the magnetic field. Either the detection position is relatively single, or the response speed is not fast enough. Utility Model Content

[0004] The purpose of the utility model is to provide a wireless charging signal detector, which can solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is to provide a wireless charging signal detector, including a PCB board, a ring coil, a rectifier module and an indicator light, the PCB board is in a regular shape; the ring coil is arranged on the PCB board, including a first connection end and a second connection end; the rectifier module is connected to the first connection end of the ring coil on one side, and connected to the second connection end of the ring coil on the other side, and the rectifier module and the ring coil are connected to form a closed circuit unit to form a closed circuit unit; the indicator light is electrically connected to the rectifier module; the ring coil senses a current signal, and the current signal forms a direct current after passing through the rectifier module, and the direct current is then transmitted to the indicator light and lights up the indicator light.

[0006] Furthermore, the PCB board includes a coil mounting plate and a component mounting plate, the coil mounting plate is configured to be circular, the component mounting plate is configured to be square, the annular coil is configured on the coil mounting plate, the rectifier module and the indicator light are configured on the component mounting plate, and the component mounting plate is configured to be on the outer edge of the coil mounting plate and is integrally formed.

[0007] Furthermore, the annular coil is printed on the PCB board, and the annular coil has a tapered multi-layer annular structure. The outer ring end of the annular coil is a first connection end, and the inner ring end of the annular coil is a second connection end. The first connection end is connected to the rectifier module through a first wire, and the second connection end is connected to the rectifier module through a second wire.

[0008] Furthermore, the first conductive wire is printed on the PCB board and arranged in the same layer as the annular coil, the second conductive wire is printed on the PCB board and passes through the annular coil, and the second conductive wire is insulated from the annular coil.

[0009] Furthermore, the PCB board is a multi-layer printed circuit board, each layer is insulated, and the second wire and the annular coil are respectively located on different layers of the PCB board.

[0010] Furthermore, the PCB board is a double-layer printed circuit board, the annular coil is located on the front side of the PCB board, the second conductor is located on the back side of the PCB board, and the front side and the back side are insulated.

[0011] Furthermore, the annular coil, the first conductive wire and the second conductive wire are all made of copper.

[0012] Furthermore, there are multiple detection components, and the multiple detection components are independent of each other, and the multiple detection components can be stacked.

[0013] The beneficial effects of the utility model are:

[0014] 1. There is a ring coil on the PCB board. When the ring coil receives the electromagnetic energy of the wireless charger, it will pass through the rectifier module and rectify it into direct current. The direct current is transmitted to the indicator light and lights up the indicator light. The greater the electromagnetic energy, the brighter the indicator light. The brightness of the indicator light can be used to directly observe the size of the magnetic field energy at the location, and then detect whether the magnetic field strength of the coil of the wireless charger meets the standard, reflecting the quality of the charging function of the product charger. Among them, the brightness of the indicator light can be observed by a tester, and the brightness of the indicator light can be intuitively digitized. Compared with manual observation, the detection effect is more accurate.

[0015] 2. The PCB board includes a coil mounting plate and a component mounting plate. The coil mounting plate is set in a circular shape for the installation of the ring coil, which is convenient for the ring coil to be closely fitted with the outer contour of the coil mounting plate. At this time, there is no blank area on the edge of the coil mounting plate, which can meet the installation of the ring coil while minimizing the volume of the coil mounting plate and saving the material of the plate. The component mounting plate is set in a square shape to meet the installation of the rectifier module and the indicator light with the smallest volume.

[0016] 3. The PCB board is a double-layer printed circuit board, the annular coil is located on the front side of the PCB board, and the second wire is located on the back side of the PCB board, and the front side and the back side are insulated. The first wire, the annular coil and the second wire are connected to the rectifier module after routing, and form a closed circuit unit.

[0017] 4. There are multiple detection components, which are independent of each other and can be stacked. Since each detection component is independent of each other, the number of stacked detection components can be flexibly determined according to needs. By stacking multiple detection components, the magnitude of magnetic field energy at different heights at the same location can be displayed simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the overall structure of a detection component used in a wireless charging signal detector provided in an embodiment of the utility model;

[0020] Figure 2 An overall structural diagram of a wireless charging signal detector provided by an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 10. Detection component; 11. PCB board; 111. Coil mounting plate; 112. Component mounting plate; 12. Ring coil; 121. First connection end; 122. Second connection end; 123. First wire; 124. Second wire; 13. Rectifier module; 14. Indicator light. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Reference Figure 1 and Figure 2 As a wireless charging signal detector provided by an embodiment of the utility model, it includes a detection component 10, the detection component 10 includes a PCB board 11, a ring coil 12, a rectifier module 13 and an indicator light 14, the PCB board 11 is in a regular shape; the ring coil 12 is arranged on the PCB board 11, and includes a first connection end 121 and a second connection end 122; the rectifier module 13 is connected to the first connection end 121 of the ring coil 12 on one side, and is connected to the second connection end 122 of the ring coil 12 on the other side, and the rectifier module 13 and the ring coil 12 are connected to form a closed circuit unit to form a closed circuit unit; the indicator light 14 is electrically connected to the rectifier module 13; the ring coil 12 senses a current signal, and the current signal forms a direct current after passing through the rectifier module 13, and the direct current is then transmitted to the indicator light 14 and lights up the indicator light 14.

[0028] A ring coil 12 is provided on the PCB board 11. When the ring coil 12 receives the electromagnetic energy of the wireless charger, it will pass through the rectifier module 13 and rectify into direct current, and the direct current is transmitted to the indicator light 14 and lights up the indicator light 14. And the greater the electromagnetic energy, the greater the brightness of the indicator light 14. Through the brightness of the indicator light 14, the magnitude of the magnetic field energy at the location can be intuitively observed, and then the magnetic field strength of the coil of the wireless charger can be detected to reflect the quality of the charging function of the product charger. Among them, the brightness of the indicator light 14 can be observed by a tester, and the brightness of the indicator light 14 can be intuitively digitized. Compared with manual observation, the detection effect is more accurate.

[0029] Specifically, the PCB board 11 includes a coil mounting plate 111 and a component mounting plate 112. The coil mounting plate 111 is set in a circular shape for the installation of the annular coil 12, so that the annular coil 12 can be closely fitted with the outer contour of the coil mounting plate 111. At this time, there is no blank area on the edge of the coil mounting plate 111, which can meet the installation of the annular coil 12 while the volume of the coil mounting plate 111 can be minimized, saving the material of the plate. The component mounting plate 112 is set in a square shape, and the rectifier module 13 and the indicator light 14 are set on the component mounting plate 112, so that the installation of the rectifier module 13 and the indicator light 14 can be met with the minimum volume. The component mounting plate 112 is set at the outer edge of the coil mounting plate 111 and is integrally formed.

[0030] Furthermore, the annular coil 12 is printed on the PCB board 11, and the annular coil 12 has a tapered multi-layer annular structure. The outer ring end of the annular coil 12 is the first connection end 121, and the inner ring end of the annular coil 12 is the second connection end 122. The first connection end 121 is connected to the rectifier module 13 through the first wire 123, and the second connection end 122 is connected to the rectifier module 13 through the second wire 124.

[0031] Specifically, the annular coil 12, the first wire 123 and the second wire 124 are all made of copper, which has low resistance and good conductive effect. The first wire 123 is printed on the PCB board 11 and arranged on the same layer as the annular coil 12, the second wire 124 is printed on the PCB board 11 and passes through the annular coil 12, and the second wire 124 is insulated from the annular coil 12. The PCB board 11 is a multi-layer printed circuit board, and insulation is arranged between each layer. The second wire 124 and the annular coil 12 are respectively located on different layers of the PCB board 11. The first wire 123, the annular coil 12 and the second wire 124 are connected to the rectifier module 13 after routing, and a closed circuit unit is formed. In this embodiment, the PCB board 11 is a double-layer printed circuit board, the annular coil 12 is located on the front side of the PCB board 11, and the second wire 124 is located on the back side of the PCB board 11. The front and back sides are insulated, so that the first wire 123, the annular coil 12 and the second wire 124 are connected to the rectifier module 13 after routing, and a closed circuit unit is formed. The rectifier module 13 is a circuit that converts AC power into DC power. The function of the rectifier module 13 is to convert the low-voltage AC power output by the AC step-down circuit into unidirectional pulsating DC power. This is the rectification process of AC power. The rectifier module 13 is mainly composed of rectifier diodes. The indicator light 14 uses LED lamp beads. The LED lamp has low power consumption, stable brightness and does not generate electromagnetic interference.

[0032] Furthermore, there are multiple detection components 10, and the multiple detection components 10 are independent of each other, and the multiple detection components 10 can be stacked. Since each detection component 10 is independent of each other, the number of superimposed detection components 10 can be flexibly determined according to needs. By stacking multiple detection components 10, the magnitude of the magnetic field energy at different heights at the same position can be displayed simultaneously. According to the Qi standard of the wireless charging industry, the wireless charger must continue to transmit ping signals in standby mode, and each signal is about 80 milliseconds. In such a short time, ordinary test instruments cannot measure the accurate magnetic field strength. Put this patented product above the coil, and by observing the number of indicator lights 14 that are lit, you can intuitively know the magnitude of the magnetic field strength and whether the coil is operating normally and effectively, which effectively helps the work of development testers.

[0033] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A wireless charging signal detector, comprising a detection component (10), characterized in that: The detection component (10) comprises: A PCB board (11), wherein the PCB board (11) is in a regular shape; A ring-shaped coil (12), the ring-shaped coil (12) being arranged on the PCB board (11) and comprising a first connection end (121) and a second connection end (122); A rectifier module (13), one side of which is connected to a first connection end (121) of the annular coil (12), and one side of which is connected to a second connection end (122) of the annular coil (12), wherein the rectifier module (13) and the annular coil (12) are connected to form a closed circuit unit; An indicator light (14), electrically connected to the rectifier module (13); The annular coil (12) senses a current signal, and the current signal is converted into direct current after passing through the rectifier module (13), and the direct current is then transmitted to the indicator light (14) to light up the indicator light (14).

2. The wireless charging signal detector according to claim 1, characterized in that: The PCB board (11) comprises a coil mounting plate (111) and a component mounting plate (112); the coil mounting plate (111) is arranged in a circular shape, the component mounting plate (112) is arranged in a square shape, the annular coil (12) is arranged on the coil mounting plate (111), the rectifier module (13) and the indicator light (14) are arranged on the component mounting plate (112), and the component mounting plate (112) is arranged on the outer edge of the coil mounting plate (111) and is integrally formed.

3. The wireless charging signal detector according to claim 2, characterized in that: The annular coil (12) is printed on the PCB board (11); the annular coil (12) is a tapered multi-layer annular structure; the outer ring end of the annular coil (12) is a first connection end (121); the inner ring end of the annular coil (12) is a second connection end (122); the first connection end (121) is connected to the rectifier module (13) via a first wire (123); and the second connection end (122) is connected to the rectifier module (13) via a second wire (124).

4. The wireless charging signal detector according to claim 3, characterized in that: The first conductive wire (123) is printed on the PCB board (11) and is arranged in the same layer as the annular coil (12); the second conductive wire (124) is printed on the PCB board (11) and passes through the annular coil (12); the second conductive wire (124) is insulated from the annular coil (12).

5. The wireless charging signal detector according to claim 4, characterized in that: The PCB board (11) is a multi-layer printed circuit board, each layer is insulated, and the second conductor (124) and the annular coil (12) are respectively located on different layers of the PCB board (11).

6. The wireless charging signal detector according to claim 5, characterized in that: The PCB board (11) is a double-layer printed circuit board, the annular coil (12) is located on the front side of the PCB board (11), the second conductor (124) is located on the back side of the PCB board (11), and the front side and the back side are insulated.

7. The wireless charging signal detector according to claim 3, characterized in that: The annular coil (12), the first conductive wire (123) and the second conductive wire (124) are all made of copper.

8. The wireless charging signal detector according to claim 1, characterized in that: There are a plurality of detection components (10), the plurality of detection components (10) are independent of each other, and the plurality of detection components (10) can be stacked.

Images