Anti-overcharge power adapter
By introducing thermal relays and thermal-sensitive components into the charging power adapter for overshoot protection, combining the heat dissipation components to improve the heat dissipation performance, and stabilizing the connector through the limit structure, the shortcomings of traditional charging power adapters in overshoot protection, heat dissipation and connection stability are solved, achieving more efficient protection and use effects.
Patent Information
- Application Number
- CN202421319100.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Traditional charging power adapters cannot effectively protect electronic products when overshoot, and their heat dissipation performance is insufficient and the connection head limit is poor, resulting in single functionality and unstable use.
An anti-overcharge power adapter is designed, and overshoot protection is carried out using thermal relays and thermal component components. It combines heat dissipation holes, thermal gaskets, heat dissipation fins and heat dissipation fans to improve heat dissipation performance, and limit the connection head through the first U-shaped locker, the second U-shaped locker, the movable slot and the movable rod.
It realizes overshoot protection for electronic products, improves the heat dissipation performance of the adapter, and ensures a stable connection between the connector and the adapter, extending the service life of the components.
Smart Images
Figure CN222763621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power adapters, in particular to an overcharge-proof power adapter. Background Art
[0002] A power adapter is a small portable electronic device assembled from components such as a casing, a transformer, a circuit board and a control chip. Its working principle is to convert the transmitted alternating current into direct current to meet the needs of different electronic devices. It can also convert the power supplied to electronic products into the current and voltage required by the electronic products to ensure their normal operation. It can save electricity, reduce energy loss and has high safety.
[0003] When traditional charging source adapters convert high voltage into low voltage for electronic products, if the electronic products overcharge, it is not convenient to provide overcharge protection for the electronic products. They will continue to convert power to the electronic products, and their functionality is relatively simple. Therefore, we proposed XX to improve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide an overcharge protection power adapter to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an anti-overcharging power adapter, comprising a rubber soft board shell, a circuit board is installed inside the shell, a transformer is installed at one end of the surface of the circuit board, a control chip is provided at one end of the transformer, a capacitor is installed at one end of the control chip, and an inductor is installed at one end of the capacitor, a thermal relay is installed at the other end of the surface of the circuit board, and a thermistor is provided inside the thermal relay, a wire body is installed on one side of the shell, and a docking seat is installed on the other side of the shell.
[0006] Preferably, thermally conductive gaskets are fixed at both ends of the circuit board surface through fixing parts, heat dissipation fins are fixed on both sides of the top of the thermally conductive gasket, a heat dissipation frame is installed at one end of the thermally conductive gasket, and a heat dissipation fan is installed inside the heat dissipation frame, and heat dissipation holes are provided at both ends of the interior of the outer shell.
[0007] Preferably, a plurality of heat dissipation holes are provided, and the plurality of heat dissipation holes are symmetrically distributed at equal intervals at both ends inside the shell.
[0008] Preferably, four groups of heat dissipation fins are provided, and the four groups of heat dissipation fins are symmetrically distributed about the central axis of the housing.
[0009] Preferably, movable grooves are provided at both ends of one side of the inner part of the shell, movable rods are movably provided inside the movable grooves, guide holes are provided inside the movable rods, guide rods are movably provided inside the guide holes, and both ends of the guide rods are fixed to the inner side walls of the movable grooves, a first U-shaped socket and a second U-shaped socket are respectively fixed to one end of the movable rod, rubber sheets are fixed to the inner side walls of the first U-shaped socket and the second U-shaped socket, a clamping block is fixed to one end of the first U-shaped socket, and a clamping groove is provided on one side of the inner part of the second U-shaped socket.
[0010] Preferably, the cross section of the guide hole is larger than the cross section of the guide rod, and the guide hole and the guide rod are matched with each other.
[0011] Preferably, the card block and the card slot are matched with each other, and a card engagement structure is formed between the card block and the card slot.
[0012] Preferably, the cross section of the movable rod is smaller than the cross section of the movable groove, and a sliding structure is formed between the movable rod and the movable groove.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the anti-overcharge power adapter realizes overcharge protection for electronic products, improves the heat dissipation performance of the adapter, and realizes the position limitation of the connector to ensure the stability of the connection between the connector and the adapter;
[0014] (1) By providing a thermal relay and a thermistor assembly, when the current passing through the adapter exceeds the rated current, the current passing through the thermal relay will generate heat, causing the heat of the thermal relay to rise. When the temperature reaches a certain height, the thermal relay will bend or open the switch, cutting off the circuit and stopping the adapter from converting and charging the current, thereby achieving overcharge protection for electronic products;
[0015] (2) By providing components such as heat dissipation holes, heat conductive pads, heat dissipation fins and heat dissipation fans, when the power adapter is used, the operation of multiple components inside the adapter will generate a certain amount of heat. Through the cooperation of the above components, the heat generated inside the shell can be quickly discharged, thereby avoiding excessively high temperatures inside the shell that shorten the service life of the components and improving the protection of the adapter;
[0016] (3) By providing components such as a first U-shaped card seat, a second U-shaped card seat, a movable groove and a movable rod, when using the adapter, after the corresponding connector is installed inside the docking seat on one side of the shell, the second U-shaped card seat and the first U-shaped card seat in the above components can be engaged together by the movable rod sliding inside the movable groove to limit the connector, so that the connection between the connector and the adapter is not easy to fall off, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;
[0018] Figure 2 This is a schematic diagram of the top view of the heat dissipation fan of the utility model;
[0019] Figure 3 This is a front view structural diagram of the first U-shaped card holder of the utility model;
[0020] Figure 4 For the utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.
[0021] In the figure: 1. housing; 2. transformer; 3. wire body; 4. circuit board; 5. control chip; 6. capacitor; 7. inductor; 8. first U-shaped card holder; 9. docking seat; 10. second U-shaped card holder; 11. movable slot; 12. thermal relay; 13. thermistor; 14. heat dissipation hole; 15. fixing piece; 16. thermal pad; 17. heat dissipation fin; 18. heat dissipation frame; 19. heat dissipation fan; 20. rubber sheet; 21. card block; 22. card slot; 23. guide rod; 24. guide hole; 25. movable rod. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0023] Example 1: Please refer to Figure 1-4 , an anti-overcharge power adapter, comprising a rubber soft board shell 1, a circuit board 4 is installed inside the shell 1, a transformer 2 is installed on one end of the surface of the circuit board 4, a control chip 5 is arranged at one end of the transformer 2, a capacitor 6 is installed at one end of the control chip 5, and an inductor 7 is installed at one end of the capacitor 6, a thermal relay 12 is installed at the other end of the surface of the circuit board 4, and a thermistor 13 is arranged inside the thermal relay 12, a wire body 3 is installed on one side of the shell 1, and a docking seat 9 is installed on the other side of the shell 1;
[0024] Specifically, Figure 1 As shown, when current passes through the adapter, it passes through the thermal relay 12, causing the heat of the thermal relay 12 to rise. When the temperature reaches a certain level, the thermal relay 12 will bend or open the switch, cutting off the circuit and stopping the adapter from converting and charging the current.
[0025] Embodiment 2: Both ends of the surface of the circuit board 4 are fixed with thermal pads 16 through fixing members 15, and both sides of the top of the thermal pads 16 are fixed with heat dissipation fins 17, one end of the thermal pads 16 is installed with a heat dissipation frame 18, and the inside of the heat dissipation frame 18 is installed with a heat dissipation fan 19, and both ends of the inside of the shell 1 are provided with heat dissipation holes 14, and a plurality of heat dissipation holes 14 are provided, and the plurality of heat dissipation holes 14 are symmetrically distributed at both ends of the inside of the shell 1 with equal intervals, and four groups of heat dissipation fins 17 are symmetrically distributed about the central axis of the shell 1, and the symmetrically distributed heat dissipation holes 14 and the symmetrically distributed heat dissipation fins 17 will have a better and more comprehensive thermal conductivity effect on the power adapter;
[0026] Specifically, Figure 1 and Figure 2 As shown, when the adapter is used and in operation, its internal components operate and generate high temperatures. At this time, the thermal pad 16 will conduct the heat and dissipate it through the heat dissipation fins 17. The heat dissipation fan 19 on the rear side starts to blow the heat dissipated by the heat dissipation fins 17, and then discharges the heat through the heat dissipation holes 14, thereby better reducing the temperature of the adapter and improving the heat dissipation effect of the adapter.
[0027] Embodiment 3: Both ends of one side of the inner side of the housing 1 are provided with movable grooves 11, and movable rods 25 are movably provided inside the movable grooves 11, and guide holes 24 are provided inside the movable rods 25, and guide rods 23 are movably provided inside the guide holes 24, and both ends of the guide rods 23 are fixed to the inner side walls of the movable grooves 11, and one end of the movable rod 25 is respectively fixed with the first U-shaped card seat 8 and the second U-shaped card seat 10, and the inner side walls of the first U-shaped card seat 8 and the second U-shaped card seat 10 are fixed with rubber sheets 20, and one end of the first U-shaped card seat 8 is fixed with a card block 21, and the inner side walls of the second U-shaped card seat 10 are fixed with a card block 21. A card slot 22 is provided on one side of the part, the cross section of the guide hole 24 is larger than the cross section of the guide rod 23, the guide hole 24 and the guide rod 23 are matched, the card block 21 and the card slot 22 are matched, and a card engagement structure is formed between the card block 21 and the card slot 22. The design of the card engagement structure enables the first U-shaped card seat 8 and the second U-shaped card seat 10 to be stably engaged with the outer side wall of the connector, and is convenient for disassembly and assembly. The cross section of the movable rod 25 is smaller than the cross section of the movable groove 11, and a sliding structure is formed between the movable rod 25 and the movable groove 11, which is convenient for pushing the first U-shaped card seat 8 and the second U-shaped card seat 10 to move;
[0028] Specifically, Figure 1 and Figure 3As shown, when in use, after the corresponding connector is installed inside the docking seat 9 on one side of the shell 1, the second U-shaped socket 10 and the first U-shaped socket 8 are pushed toward the direction of the connector, so that the first U-shaped socket 8 and the second U-shaped socket 10 are slidably fitted to the outer wall of the connector through the movable rod 25 on the outer wall of the guide rod 23, so that the block 21 on one side of the first U-shaped socket 8 and the groove 22 on one side of the second U-shaped socket 10 are engaged together, so that the first U-shaped socket 8 and the second U-shaped socket 10 are engaged to the outer wall of the connector to stabilize it, so that the connector is not easy to fall off during the use of the adapter.
[0029] Working principle: When the utility model is in use, a plug is installed on one end of the adapter line 3, and a corresponding connector is installed on the other end. A wire is installed on one side of the connector and one side of the wire is connected to the electronic product. After the connector is installed on the adapter, the second U-shaped socket 10 and the first U-shaped socket 8 are pushed in the direction of the connector so that the first U-shaped socket 8 and the second U-shaped socket 10 are snapped together, and the first U-shaped socket 8 and the second U-shaped socket 10 are snapped to the outer wall of the connector to stabilize it. After stabilization, the adapter uses the power supplied to the electronic product to convert the current and voltage required by the electronic product, and the thermal relay 12 will pass through the transmission process, so that the heat of the thermal relay 12 rises, and after the temperature reaches a certain height, the thermal relay 12 will bend or turn on the switch for charging protection, and during the use of the adapter, the heat can be guided out through the thermal pad 16, and the heat dissipation fins 17 dissipate the heat, and the heat dissipation fan 19 on the rear side starts to blow the temperature dissipated by the heat dissipation fins 17, and then the heat is discharged through the heat dissipation holes 14.
[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An overcharge protection power adapter, comprising a rubber soft board housing (1), characterized in that: A circuit board (4) is installed inside the housing (1); a transformer (2) is installed on one end of the surface of the circuit board (4); a control chip (5) is provided at one end of the transformer (2); a capacitor (6) is installed at one end of the control chip (5); an inductor (7) is installed at one end of the capacitor (6); a thermal relay (12) is installed at the other end of the surface of the circuit board (4); a thermal sensitive element (13) is provided inside the thermal relay (12); a wire body (3) is installed on one side of the housing (1); and a docking seat (9) is installed on the other side of the housing (1).
2. The overcharge protection power adapter according to claim 1, characterized in that: Both ends of the surface of the circuit board (4) are fixed with heat-conducting pads (16) via fixing members (15), both sides of the top of the heat-conducting pads (16) are fixed with heat-dissipating fins (17), one end of the heat-conducting pads (16) is installed with a heat-dissipating frame (18), and a heat-dissipating fan (19) is installed inside the heat-dissipating frame (18), and both ends of the interior of the housing (1) are provided with heat-dissipating holes (14).
3. The overcharge protection power adapter according to claim 2, characterized in that: A plurality of heat dissipation holes (14) are provided, and the plurality of heat dissipation holes (14) are symmetrically distributed at equal intervals at two ends inside the housing (1).
4. The overcharge protection power adapter according to claim 2, characterized in that: Four groups of heat dissipation fins (17) are provided, and the four groups of heat dissipation fins (17) are symmetrically distributed about the central axis of the housing (1).
5. The overcharge protection power adapter according to claim 1, characterized in that: Both ends of one side of the inner part of the shell (1) are provided with movable grooves (11), and movable rods (25) are movably provided inside the movable grooves (11), and guide holes (24) are provided inside the movable rods (25), and guide rods (23) are movably provided inside the guide holes (24), and both ends of the guide rods (23) are fixed to the inner side walls of the movable grooves (11), and one end of the movable rod (25) is respectively fixed with a first U-shaped card seat (8) and a second U-shaped card seat (10), and the inner side walls of the first U-shaped card seat (8) and the second U-shaped card seat (10) are fixed with rubber sheets (20), and one end of the first U-shaped card seat (8) is fixed with a card block (21), and one side of the inner part of the second U-shaped card seat (10) is provided with a card groove (22).
6. The overcharge protection power adapter according to claim 5, characterized in that: The cross section of the guide hole (24) is larger than the cross section of the guide rod (23), and the guide hole (24) and the guide rod (23) are matched with each other.
7. The overcharge protection power adapter according to claim 5, characterized in that: The clamping block (21) and the clamping slot (22) are matched with each other, and a clamping structure is formed between the clamping block (21) and the clamping slot (22).
8. The overcharge protection power adapter according to claim 5, characterized in that: The cross section of the movable rod (25) is smaller than the cross section of the movable groove (11), and a sliding structure is formed between the movable rod (25) and the movable groove (11).