Spinning intelligent protection power adapter

Abstract

The utility model relates to the technical field of power adapters, and discloses a spinning intelligent protection power adapter which comprises a shell and a circuit board, the circuit board is arranged in the shell, and an EMC circuit, a rectification filter circuit, a transformer, an IC control circuit, an output circuit and an intelligent control adjustment drive circuit are integrated on the circuit board. The EMC circuit is in signal connection with the rectification filter circuit, the rectification filter circuit is in signal connection with the transformer, the transformer is in signal connection with the output circuit, the output circuit is in signal connection with the intelligent control regulation drive circuit, and the transformer is in signal connection with the IC control circuit. The utility model has the advantages of reducing the complex condition of a linear power supply, improving the production efficiency, realizing a transient requirement large current mode, and meeting the market requirements of customers.

Description

Technical Field

[0001] The utility model relates to the technical field of power adapters, in particular to an intelligent protection power adapter for a spinning bike. Background Art

[0002] At present, switching power supplies are widely used in different occasions. Switching power supplies are also developed according to different customer requirements. With the widespread application of smart homes, customers' requirements for smart monitoring products are gradually increasing, and the market demand for smart homes is more extensive. Therefore, this product is developed, and the power switch identification and isolation circuit design are applied, and the motor is intelligently controlled to meet market needs.

[0003] Existing power adapters have poor operational stability and pose potential safety risks when large currents pass through them instantaneously. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the present invention is that the power adapter in the prior art has a complex internal structure and cannot realize a high current mode required by transient conditions.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent protection power adapter for a spinning bike, comprising a housing and a circuit board, wherein the housing is provided with a circuit board.

[0008] The circuit board is integrated with an EMC circuit, a rectifier and filter circuit, a transformer, an IC control circuit, an output circuit and an intelligent control and regulation drive circuit;

[0009] The EMC circuit is signal-connected to the rectifier and filter circuit, the rectifier and filter circuit is signal-connected to the transformer, the transformer is signal-connected to the output circuit, the output circuit is signal-connected to the intelligent control and regulation drive circuit, and the transformer is signal-connected to the IC control circuit.

[0010] Furthermore, the EMC circuit includes a fuse, a varistor, and a filter, and the fuse, the varistor, and the filter are connected through circuit board wiring. One end of the fuse is connected to one end of the varistor and then to one end of the electrolytic capacitor. The other end of the varistor is connected to the other end of the electrolytic capacitor, and then to the filter, and then to the electrolytic capacitor, thereby performing EMC filtering.

[0011] Furthermore, the rectification and filtering circuit includes a rectifier bridge stack, an electrolytic capacitor and a magnetic ring inductor, and the rectifier bridge stack, the electrolytic capacitor and the magnetic ring inductor are connected through circuit board wiring.

[0012] Furthermore, there are two rectifier bridge stacks, and the models of the two rectifier bridge stacks are ABS210.

[0013] Furthermore, the transformer adopts a PQ2620 skeleton, which adopts a magnetic core design and meets the power requirement of 60W.

[0014] Furthermore, the output circuit includes an electrolytic capacitor and a dummy load. The electrolytic capacitor reduces the output ripple, and the dummy load accelerates the speed at which the working light turns off.

[0015] Furthermore, the IC control circuit adopts OB2283K chip, which adopts SOT-26 package.

[0016] 3. Beneficial Effects

[0017] The advantages of this utility model compared with the prior art are:

[0018] 1. Reduce product costs, reduce the complexity of linear power supplies, improve production efficiency, optimize the design of the 20V3.0A isolation circuit, adopt a flyback switch mode, use Onpo's OB2283K power IC, and intelligently adjust the DC output terminal through the protocol chip to achieve the purpose of driving a bicycle, and the panel controls its protection function, thereby optimizing costs and increasing product stability;

[0019] 2. The application chip OB2283K is a high-performance current / voltage mode PWM controller for offline flyback transformers. It integrates the protection function of the self-recovery mode to meet ultra-low startup requirements. It has a built-in adjustable 3x operating frequency and can achieve high current mode with transient requirements to meet customer market needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the circuit schematic diagram of the utility model;

[0021] Figure 2 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The present invention will now be further described with reference to the accompanying drawings.

[0027] Example

[0028] Combined with attachment Figure 1 When working, the EMC circuit consists of a fuse, a varistor, and a filter, which are connected through circuit board wiring. One end of the fuse is connected through one end of the varistor, and then connected to one end of the electrolytic capacitor. The other end of the varistor is connected to the other end of the electrolytic capacitor, connected to the filter, and then connected to the electrolytic capacitor for EMC filtering.

[0029] The rectifier and filter circuit consists of a rectifier bridge stack, electrolytic capacitors, and magnetic toroidal inductors, which are connected through circuit board wiring. Two rectifier bridge stacks model ABS210, a filter + electrolytic capacitors form the filter circuit.

[0030] The transformer uses PQ2620 bobbin and magnetic core design to meet the power requirement of 60W.

[0031] The output circuit is composed of an electrolytic capacitor and a dummy load. The electrolytic capacitor reduces the output ripple, and the dummy load speeds up the extinguishing of the working light.

[0032] The IC control circuit adopts SOT-26 package, adopts switching frequency of 65KHz, and the highest frequency of 3 times can reach 195KHz. It has green power saving mode and hiccup mode, uses frequency jitter function to optimize EMI, integrates internal slope compensation current mode control, and has OVP / OLP / OTP / SCP protection functions. It has built-in totem circuit soft start, which effectively optimizes the product radiation system.

[0033] A PW1558 QFN protocol protection circuit is added to the back end to stabilize the 20V power supply system at the output end, support short-circuit reset protection, and maintain the normal operation of the control panel microcontroller to achieve the purpose of intelligent control of the panel.

[0034] The utility model and its embodiments are described in this disclosure. This description is not restrictive. The drawings show only one embodiment of the utility model, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this disclosure and, without departing from the purpose of the utility model, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the utility model.

Claims

1. A spinning bike intelligent protection power adapter, comprising a housing and a circuit board, wherein the housing is provided with a circuit board, characterized in that: The circuit board is integrated with an EMC circuit, a rectifier and filter circuit, a transformer, an IC control circuit, an output circuit and an intelligent control and regulation drive circuit; The EMC circuit is signal-connected to the rectifier and filter circuit, the rectifier and filter circuit is signal-connected to the transformer, the transformer is signal-connected to the output circuit, the output circuit is signal-connected to the intelligent control and regulation drive circuit, and the transformer is signal-connected to the IC control circuit.

2. The intelligent protection power adapter for a spinning bike according to claim 1, characterized in that: The EMC circuit includes a fuse, a varistor, and a filter. The fuse, the varistor, and the filter are connected through circuit board wiring. One end of the fuse is connected to one end of the varistor and then to one end of the electrolytic capacitor. The other end of the varistor is connected to the other end of the electrolytic capacitor, and then to the filter, and then to the electrolytic capacitor, thereby performing EMC filtering.

3. The intelligent protection power adapter for a spinning bike according to claim 1, characterized in that: The rectifier and filter circuit includes a rectifier bridge stack, an electrolytic capacitor and a magnetic ring inductor, and the rectifier bridge stack, the electrolytic capacitor and the magnetic ring inductor are connected through circuit board wiring.

4. The intelligent protection power adapter for a spinning bike according to claim 3, characterized in that: There are two rectifier bridge stacks, and the models of the two rectifier bridge stacks are ABS210.

5. The intelligent protection power adapter for a spinning bike according to claim 1, characterized in that: The transformer adopts PQ2620 skeleton and adopts magnetic core design, which meets the power requirement of 60W.

6. The intelligent protection power adapter for a spinning bike according to claim 1, characterized in that: The output circuit includes an electrolytic capacitor and a dummy load. The electrolytic capacitor reduces the output ripple, and the dummy load accelerates the speed at which the working light turns off.

7. The intelligent protection power adapter for a spinning bike according to claim 1, characterized in that: The IC control circuit adopts OB2283K chip, which adopts SOT-26 package.

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