Single-ring PogoPin connector and power supply method

Abstract

The invention relates to a single-ring PogoPin connector which comprises a power supply circuit, at least three power supply thimbles and a powered device, the powered device comprises a contact ring, the contact ring is composed of two concyclic semi-rings, opening gaps are formed between the two ends of the two semi-rings, the power supply thimbles make contact with the contact ring and are used for transmitting current and signals, and the number of the power supply thimbles is larger than or equal to three. The power supply thimbles are distributed on the same circle at intervals, and the power supply circuit comprises a thimble state recognition circuit, a positive and negative electrode loading circuit and a power supply. No matter the configuration of three thimbles or four thimbles, the invention provides a corresponding 360-degree power supply method which can adapt to different application scenes and requirements.

Description

Technical Field

[0001] The present application relates to the technical field of power supply interface, and in particular to a single-ring PogoPin connector and a power supply method. Background Art

[0002] The patent "A microphone compatible with PogoPin and Type-c charging (CN202322684000.5)" proposes a single-ring PogoPin charging scenario. Although the patent uses a conversion circuit to achieve single-ring charging without distinguishing between positive and negative poles and is compatible with Type-c wired power supply; however, the traditional PogoPin power supply uses 2 fixed charging pins for charging. During power supply, when the position of the powered device rotates, there is a situation where power cannot be supplied. This problem is a design defect of the single-ring PogoPin, and as the distance between the two semicircular rings increases, the probability of power failure also increases. In response to this problem, the present invention improves the number and position of the charging pins and provides a solution to achieve 360-degree power supply. Summary of the invention

[0003] The present application provides a single-ring PogoPin connector and a power supply method, which realizes 360-degree power supply by increasing the number of charging pins and using a circuit to load electrodes on the copper rings on both sides.

[0004] The single-ring PogoPin connector and power supply method provided in this application adopt the following technical solutions:

[0005] The single-ring PogoPin connector includes a power supply circuit, a power supply pin and a powered device. The powered device includes a contact ring, which is composed of two cocircular half rings. An open gap is provided between the two ends of the two half rings.

[0006] The power supply ejector pins are used to transmit current and signals, and the number of the power supply ejector pins is at least three. The power supply ejector pins are circumferentially spaced and distributed on the contact ring. When any power supply ejector pin is located in the open gap, at least two power supply ejector pins are located on two half rings respectively.

[0007] The power supply circuit includes an ejector state recognition circuit, a positive and negative electrode loading circuit and a power supply;

[0008] The ejector pin state recognition circuit is used to detect the power-on state between any two power ejector pins and transmit the control signal to the positive and negative electrode loading circuits;

[0009] The positive and negative pole loading circuit is used to assign the positive and negative poles of the power supply to the power supply ejector according to the control signal of the ejector state recognition circuit, thereby realizing the power supply function;

[0010] The power supply is used to provide the electric energy required by the power supply device, which is transmitted to the power supply ejector pin through the positive and negative loading circuits.

[0011] Further improvement, the ejector state identification circuit includes a protection module, which is used to detect abnormal conditions and prevent circuit damage. The abnormal conditions include short circuits. When an abnormality is detected, the protection module feeds back a signal to trigger a protection mechanism for the positive and negative loading circuits.

[0012] Further improvement, the ejector state identification circuit includes an MCU module, an IO port detection circuit is electrically connected between the MCU module and the power supply ejector, the positive and negative pole loading circuit includes a switching circuit, the power supply ejectors are each connected in series to the positive and negative poles of the power supply through a pair of switching circuits, and a controlled switch is provided on the switching circuit, and a positive and negative pole switch control wire is electrically connected between the MCU module and the controlled switch.

[0013] Further improvement, when the number of power supply ejectors is three, the angles between the three power supply ejectors are all 120 degrees.

[0014] Further improvement, when the number of power supply ejectors is four, the four power supply ejectors are distributed in a matrix, and the spacing between the two opening gaps is equal.

[0015] Further improvement, the spacing between the No. 1 ejector pin and the No. 2 ejector pin is smaller than the spacing between the No. 2 ejector pin and the No. 4 ejector pin. The spacing between the No. 1 ejector pin and the No. 2 ejector pin is larger than the spacing of the opening gap.

[0016] Further improvement, the two power supply pins on one diagonal are counted as pin No. 1 and pin No. 4 respectively, and the two power supply pins on the other diagonal are counted as pin No. 2 and pin No. 3 respectively, the positive and negative pole loading circuits include two direct-connected circuits and two switching circuits, pin No. 1 and pin No. 4 are respectively connected in series to the positive and negative poles of the power supply through the direct-connected circuits, pin No. 2 and pin No. 3 are respectively connected in series to the positive and negative poles of the power supply through the switching circuits, a controlled switch is provided on the switching circuit, and the controlled switch is directly connected to the protection module by a wire, or is electrically connected through the MCU module.

[0017] A single-ring PogoPin power supply method with more than three ejector pins, using a single-ring PogoPin connector, includes the following steps:

[0018] Step 1: Pin status detection: First, use the IO port of the MCU module and the matrix scanning method to detect whether the power pins are connected to each other;

[0019] Step 2, loading the electrode: After the ejector pin status detection, the power ejector pin has the following states: a. There is one power ejector pin in the gap, and the other two power ejector pins are on the half rings on both sides; b. There are two power ejector pins on one half ring, and the other power ejector pin is on the other half ring;

[0020] After knowing the status, load the positive and negative poles of the power supply to the two power supply pins that are not on the same half ring;

[0021] Step 3: Protection feedback: After power supply is realized, when there is a change in the power supply angle causing an electrode short circuit, the protection module outputs a feedback signal to the MCU module. The MCU module controls the positive and negative loading circuits to cut off the power supply, re-detect the ejector status, and restore the power supply.

[0022] The single-ring PogoPin power supply method when there are four ejector pins includes the following steps:

[0023] Step 1: Protection module detection: The protection module detects the short circuit of the power supply pin;

[0024] Step 2: Output power: After being detected by the protection module, the power pin has the following states:

[0025] a. There is a power supply pin on each of the two half rings, that is, the No. 1 pin and the No. 4 pin are in the opening gap, or the No. 2 pin and the No. 3 pin are in the opening gap. At this time, the power supply can be directly supplied;

[0026] b. There are two power supply pins with different polarities on each of the half rings on both sides, that is, pin 1 and pin 3 are short-circuited, and pin 2 and pin 4 are short-circuited. At this time, the protection module outputs a feedback signal; after receiving the feedback signal, the controlled switch or MCU module controls the switch of pin 2 and pin 3 to disconnect the circuit, thereby eliminating the short circuit and restoring normal power supply;

[0027] c. There are two power supply pins with the same polarity on each of the half rings on both sides, that is, pin No. 1 is connected to pin No. 2, and pin No. 2 is connected to pin No. 4. At this time, the power supply can be directly supplied.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Flexible power pin layout: There are at least three power pins, which are spaced on the same circle. This layout can adapt to different powered devices and provide flexible power supply and signal transmission solutions. Through the pin status recognition circuit, the power-on status between any two power pins can be detected, and the control signal can be transmitted to the positive and negative loading circuits to achieve intelligent power supply management.

[0030] 2. Enhanced circuit protection: The addition of protection modules can detect abnormal conditions such as short circuits, and trigger protection mechanisms when abnormalities are detected to prevent circuit damage, thereby improving the safety and reliability of the power supply system.

[0031] 3. Optimized power supply efficiency: Through the design of positive and negative pole loading circuit, the control signal of the circuit can be identified according to the state of the ejector pin, and the positive and negative poles of the power supply are assigned to the power supply ejector pin to achieve efficient power supply.

[0032] 4. Highly adaptable power supply method: Whether it is a three-pin or four-pin configuration, a corresponding 360-degree power supply method is provided to adapt to different application scenarios and needs. Although the three-pin configuration realizes the power supply without changing the copper ring form, the entire implementation process is relatively complicated. The four-pin configuration further simplifies the power supply logic through matrix distribution and circuit design. The principle is simple, and it does not require too many components while having high reliability. It is the best solution for single-ring charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the three-pin power supply scenario.

[0034] Figure 2 Is the solution Figure 1 Circuit diagram of the scenario.

[0035] Figure 3 is based on Figure 2 The circuit diagram sets the charging flow chart.

[0036] Figure 4 This is a schematic diagram of the four-pin power supply scenario.

[0037] Figure 5 Is the solution Figure 4 Circuit diagram of the scenario.

[0038] Figure 6 is based on Figure 5 The circuit diagram sets the charging flow chart.

[0039] Explanation of the accompanying drawings: 1. No. 1 ejector pin, 2. No. 2 ejector pin, 3. No. 3 ejector pin, 4. No. 4 ejector pin, 5. power supply ejector pin, 6. half ring, 7. opening gap. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 6 This application is described in further detail.

[0041] The embodiments of the present application disclose a single-ring PogoPin connector and a power supply method. For the actual power supply circuit connection structure, please refer to the circuit diagram in the attached drawing. The following is only a brief description of the functions and connection relationships of the circuit modules.

[0042] Overall design: refer to Figure 1 The single-ring PogoPin connector includes a power supply circuit, a power supply pin 5 (hereinafter also referred to as a copper column) and a powered device. The powered device includes a contact ring, which is composed of two cocircular half rings 6 (hereinafter also referred to as a copper ring). An open gap 7 is provided between the two ends of the two half rings 6.

[0043] The power supply pins 5 are in contact with the contact ring for transmitting current and signals. There are at least three power supply pins 5, which are spaced apart on the same circle and are cocircular with the semi-rings. When any power supply pin is located in the opening gap, at least two power supply pins are located on the two semi-rings respectively. If there are only three pins, it means that the distance between them must be greater than the opening gap, and they cannot be on the same semi-ring at the same time.

[0044] The power supply circuit includes a pin state recognition circuit, a positive and negative electrode loading circuit and a power supply.

[0045] The ejector pin state identification circuit is electrically connected between the positive and negative electrode loading circuits and the power supply ejectors 5, and is used to detect the power supply state between any two power supply ejectors 5, and transmit a control signal to the positive and negative electrode loading circuits;

[0046] The positive and negative electrode loading circuit is electrically connected between the power supply and the power supply ejector pins 5, and is used to assign the positive and negative electrodes of the power supply to the power supply ejector pins 5 according to the control signal of the ejector state recognition circuit, thereby realizing the power supply function;

[0047] The power supply is used to provide the electric energy required by the power supply device, which is transmitted to the power supply ejector pin 5 through the positive and negative loading circuits.

[0048] The ejector pin state identification circuit includes a protection module, which is electrically connected between the power supply and these power ejector pins 5, and is used to detect abnormal conditions and prevent circuit damage. Abnormal conditions include short circuits. When an abnormality is detected, the protection module feeds back a signal to trigger the protection mechanism of the positive and negative electrode loading circuits.

[0049] Power supply plan 1: as attached Figure 2 As shown, when the number of power supply pins 5 is three, the pin state identification circuit includes an MCU module, the protection module is electrically connected to the power supply, an IO port detection circuit is electrically connected between the MCU module and the three power supply pins 5, and the positive and negative pole loading circuit includes three pairs of switch circuits. The three power supply pins 5 are each connected in series to the positive and negative poles of the power supply through a pair of switch circuits. Controlled switches are provided on the switch circuits, and positive and negative pole switch control wires are electrically connected between the MCU module and the controlled switch.

[0050] The angles between the three power supply pins 5 are all 120 degrees. The sum of the central angles of the semi-ring 6 and the opening gap 7 is less than 120 degrees. The semi-ring 6 is a symmetrical structure in both the upper and lower parts and the left and right parts. The left and right sides of the opening gap 7 are parallel, and the center line passes through the center of the circle.

[0051] As attached Figure 3 As shown, taking the case where there are three ejector pins as an example, the single-ring PogoPin power supply method includes the following steps:

[0052] Step 1: Pin status detection: First, use the IO port of the MCU module and the matrix scanning method to detect whether the power pins 5 are connected to each other;

[0053] Step 2: Loading the electrode: After the ejector status is detected, if Figure 1 As shown, the power supply ejector pin 5 has the following states: a. One power supply ejector pin 5 is in the gap, and the other two power supply ejector pins 5 are respectively on the half rings 6 on both sides; b. Two power supply ejector pins 5 are on one half ring 6, and the other power supply ejector pin 5 is on the other half ring 6;

[0054] After knowing the status, load the positive and negative poles of the power supply to two power supply pins 5 that are not on the same side of the half ring 6;

[0055] Step 3: Protection feedback: After power supply is realized, when there is a change in the power supply angle causing an electrode short circuit, the protection module outputs a feedback signal to the MCU module. The MCU module controls the positive and negative loading circuits to cut off the power supply, re-detect the ejector status, and restore the power supply.

[0056] After charging is completed, the charging angle may change, causing the electrode to short-circuit. At this time, the protection module takes effect (the protection module can be in the form of OCP, reset chip, etc.), and outputs a feedback signal to the MCU. The MCU cuts off the power supply, re-detects the copper column status, and resumes charging.

[0057] Although this solution achieves charging without changing the form of the copper ring, the entire implementation process is relatively complicated.

[0058] Power supply solution 2: Solution 1 has achieved the function of 360-degree charging, but the detection method is too complicated and unreliable. This solution also does not change the appearance of the two semicircular copper rings, but adds two charging copper pillars at the charging end. This solution only needs to solve the short circuit scenario between the copper rings to achieve 360-degree charging. Figure 4-Figure 5When the number of power supply pins 5 is four, the four power supply pins 5 are distributed in a matrix, and the spacing between the two open gaps 7 is equal. The two power supply pins 5 on one diagonal are respectively counted as pin No. 1 1 and pin No. 4 4, and the two power supply pins 5 on the other diagonal are respectively counted as pin No. 2 2 and pin No. 3 3. The positive and negative pole loading circuits include two direct-connected circuits and two switch circuits. Pin No. 1 1 and pin No. 4 4 are respectively connected in series to the positive and negative poles of the power supply through the direct-connected circuits, and pin No. 2 2 and pin No. 3 3 are respectively connected in series to the positive and negative poles of the power supply through the switch circuit. A controlled switch is provided on the switch circuit, and the controlled switch is directly connected to the protection module by a wire, or is electrically connected through the MCU module.

[0059] The spacing between ejector pin No. 1 1 and ejector pin No. 2 2 is smaller than the spacing between ejector pin No. 2 2 and ejector pin No. 4 4. The spacing between ejector pin No. 1 1 and ejector pin No. 2 2 is larger than the spacing of the opening gap. In this way, the ejector pins can be arranged more densely, reducing the probability of short circuit scenarios.

[0060] As attached Figure 6 As shown, when the number of ejector pins is four, the single-ring PogoPin power supply method includes the following steps:

[0061] Step 1: Protection module detection: The protection module detects the short circuit of the power supply pin 5;

[0062] Step 2: Output power: After the protection module detects, if Figure 4 As shown, the power supply ejector pin 5 has the following states:

[0063] a. There is a power supply pin 5 on each of the half rings 6 on both sides, that is, the No. 1 pin 1 and the No. 4 pin 4 are in the opening gap 7, or the No. 2 pin 2 and the No. 3 pin 3 are in the opening gap 7, at this time, the power supply can be directly supplied;

[0064] b. There are two power supply pins 5 with different polarities on each of the half rings 6 on both sides, that is, pin 1 No. 1 and pin 3 No. 3 are short-circuited, and pin 2 No. 2 and pin 4 No. 4 are short-circuited. At this time, the protection module outputs a feedback signal; after receiving the feedback signal, the controlled switch or MCU module controls the switch of pin 2 No. 2 and pin 3 No. 3 to disconnect the circuit, thereby eliminating the short circuit and restoring normal power supply;

[0065] c. There are two power supply pins 5 with the same polarity on each of the half rings 6 on both sides, that is, pin 1 No. 1 is connected to pin 2 No. 2, and pin 2 No. 2 is connected to pin 4 No. 4. At this time, the power supply can be directly supplied.

[0066] Due to the ingenious design of the copper pillars, pins 1 / 2 and 3 / 4 are parallel to each other, pin 1 is fixed as the positive pole of the power supply, pin 4 is fixed as the negative pole of the power supply, pins 2 / 3 are connected to the positive and negative poles respectively, and a controllable switch is connected in series. Thanks to the fact that the spacing between the copper pillars is larger than the gap between the copper rings, there is only one short circuit scenario. At this time, only the protection module needs to output a feedback signal (the short circuit module can be in the form of OCP, reset chip, etc.). After receiving the feedback signal, the switches of copper pillars 2 and 3 can be controlled directly or through the MCU to disconnect the circuit, thereby eliminating the short circuit scenario and resuming normal charging. If there is no short circuit scenario, the system does not need to be processed and normal power supply can be achieved. Compared with the previous solution, this solution is simple in principle, does not require too many components, and has high reliability. It is the best solution for single-ring charging.

[0067] Since the electrode loading technology of the blind plug circuit in the prior art (for example, CN202222495627.1 A two-point contact charging positive and negative pole determination and charging protection circuit) is already very mature, the above scheme mainly focuses on providing a power supply method for respectively loading the positive and negative poles of the power supply on the two ejector pins on both sides of the semi-ring, so as to solve the short circuit problem when the positive and negative poles of the power supply are loaded on one semi-ring at the same time. In practical applications, the design of the blind plug circuit can be located on the receiving end or on the power supply end.

Claims

1. A single-ring PogoPin connector, comprising a power supply circuit, a power supply pin (5) and a powered device, wherein the powered device comprises a contact ring, the contact ring is composed of two cocircular half rings (6), and an open gap (7) is provided between the two ends of the two half rings (6), characterized in that: The power supply pins (5) are used to transmit current and signals, and the number of the power supply pins (5) is at least three. The power supply pins (5) are circumferentially spaced and distributed on the contact ring. When any power supply pin (5) is located in the open gap (7), at least two power supply pins (5) are respectively located on the two half rings (6); The power supply circuit includes an ejector state recognition circuit, a positive and negative electrode loading circuit and a power supply; The ejector pin state recognition circuit is used to detect the power-on state between any two power ejector pins (5) and transmit the control signal to the positive and negative electrode loading circuits; The positive and negative pole loading circuit is used to assign the positive and negative poles of the power supply to the power supply ejector (5) according to the control signal of the ejector state recognition circuit, thereby realizing the power supply function; The power supply is used to provide the electric energy required by the power supply device, which is transmitted to the power supply ejector pin (5) through the positive and negative loading circuits.

2. The single-ring PogoPin connector according to claim 1, characterized in that: The ejector pin state identification circuit includes a protection module, which is used to detect abnormal conditions and prevent circuit damage. The abnormal conditions include short circuits. When an abnormality is detected, the protection module feeds back a signal to trigger a protection mechanism for the positive and negative electrode loading circuits.

3. The single-ring PogoPin connector according to claim 2, characterized in that: The ejector state identification circuit comprises an MCU module, an IO port detection circuit is electrically connected between the MCU module and the power ejector (5), the positive and negative pole loading circuit comprises a switch circuit, the power ejector (5) is respectively connected in series to the positive pole and the negative pole of the power source through a pair of switch circuits, a controlled switch is provided on the switch circuit, and a positive and negative pole switch control wire is electrically connected between the MCU module and the controlled switch.

4. The single-ring PogoPin connector according to claim 3, characterized in that: When the number of the power supply ejector pins (5) is three, the angles between the three power supply ejector pins (5) are all 120 degrees.

5. The single-ring PogoPin connector according to claim 2, characterized in that: When the number of the power supply pins (5) is four, the four power supply pins (5) are distributed in a matrix, and the spacings between the two opening gaps (7) are equal.

6. The single-ring PogoPin connector according to claim 5, characterized in that: The spacing between the No. 1 ejector pin (1) and the No. 2 ejector pin (2) is smaller than the spacing between the No. 2 ejector pin (2) and the No. 4 ejector pin (4), and the spacing between the No. 1 ejector pin (1) and the No. 2 ejector pin (2) is larger than the spacing of the opening gap.

7. The single-ring PogoPin connector according to claim 5, characterized in that: The two power supply pins (5) on one diagonal line are respectively counted as pin No. 1 (1) and pin No. 4 (4), and the two power supply pins (5) on the other diagonal line are respectively counted as pin No. 2 (2) and pin No. 3 (3). The positive and negative electrode loading circuits include two direct connection circuits and two switch circuits. Pin No. 1 (1) and pin No. 4 (4) are respectively connected in series to the positive electrode and negative electrode of the power supply through the direct connection circuits. Pin No. 2 (2) and pin No. 3 (3) are respectively connected in series to the positive electrode and negative electrode of the power supply through the switch circuits. A controlled switch is provided on the switch circuit. The controlled switch is directly connected to the protection module by a wire or electrically connected through an MCU module.

8. A single-loop PogoPin power supply method, using the single-loop PogoPin connector as claimed in any one of claims 1 to 6, characterized in that: The following steps are included: Step 1: Pin status detection: First, use the IO port of the MCU module and a matrix scanning method to detect whether the power pins (5) are connected to each other; Step 2, loading the electrode: after the ejector pin state detection, the power ejector pin (5) has the following states: a. one power ejector pin (5) is at the gap, and the other two power ejector pins (5) are respectively on the half rings (6) on both sides; b. two power ejector pins (5) are on one half ring (6), and the other power ejector pin (5) is on the other half ring (6); After knowing the status, the positive and negative electrodes of the power supply are respectively loaded onto two power supply pins (5) which are not on the same side of the half ring (6); Step 3: Protection feedback: After power supply is realized, when there is a change in the power supply angle causing an electrode short circuit, the protection module outputs a feedback signal to the MCU module. The MCU module controls the positive and negative loading circuits to cut off the power supply, re-detect the ejector status, and restore the power supply.

9. A single-loop PogoPin power supply method, using the single-loop PogoPin connector as claimed in any one of claims 5 to 7, characterized in that: The following steps are included: Step 1: Protection module detection: The protection module detects the short circuit of the power supply pin (5); Step 2: Output power: After being detected by the protection module, the power pin (5) has the following states: a. There is a power supply pin (5) on each of the two side semi-rings (6), that is, the No. 1 pin (1) and the No. 4 pin (4) are in the opening gap (7), or the No. 2 pin (2) and the No. 3 pin (3) are in the opening gap (7), in which case the power supply can be directly supplied; b. There are two power supply pins (5) with different polarities on each of the two half rings (6), that is, pin 1 (1) and pin 3 (3) are short-circuited, and pin 2 (2) and pin 4 (4) are short-circuited. At this time, the protection module outputs a feedback signal; after receiving the feedback signal, the controlled switch or MCU module controls the switch of pin 2 (2) and pin 3 (3) to disconnect the circuit, thereby eliminating the short circuit and restoring normal power supply; c. There are two power supply pins (5) with the same polarity on each of the half rings (6) on both sides, that is, pin 1 (1) is connected to pin 2 (2), and pin 2 (2) is connected to pin 4 (4). At this time, the power supply can be directly supplied.

Images