A replaceable self-restoring fuse structure power converter

Abstract

The utility model relates to a replaceable power converter of self -recovery insurance structure, include: the shell subassembly has the installation cavity in its inside, main control circuit board is arranged in the installation cavity, support subassembly includes the chassis, support piece and roof that are arranged in the installation cavity, pin subassembly, at least one group pin subassembly is movably arranged in the installation cavity, and each pin subassembly is electrically connected with main control circuit board, the socket subassembly is electrically connected with main control circuit board, self -recovery insurance subassembly, support subassembly still includes insurance mounting bracket, and the insurance mounting bracket opens to one end, and self -recovery insurance subassembly is inserted with insurance mounting bracket, and the shell subassembly has the insurance socket for the self -recovery insurance subassembly inserts the insurance mounting bracket, and the bottom of insurance mounting bracket is equipped with electric connection insertion spring, and self -recovery insurance subassembly is equipped with electric connection pin, and electric connection pin is matched with electric connection insertion spring, and electric connection insertion spring is electrically connected with main control circuit board.

Description

Technical Field

[0001] This utility model relates to the field of power converter technology, and in particular to a power converter with a replaceable self-resetting fuse structure. Background Technology

[0002] Because plugs and sockets differ from country to country, they are not interchangeable. If you need to insert a plug into an incompatible socket, you will need a power adapter. A power adapter is an conversion tool. To use it, plug the power adapter into the target socket, then insert the target plug into the matching socket hole on the power adapter. A fuse then ensures safe power supply.

[0003] Current power converters use either replaceable ceramic fuses or non-replaceable resettable fuses. Ceramic fuses are prone to burning out when the power rating exceeds the limit, and replacing them is unsafe and difficult to find replacements on the market. Resettable fuses, on the other hand, automatically trip when the power rating exceeds the limit and then automatically reset, making them less likely to burn out. However, existing resettable fuses cannot be replaced, and if they burn out, the entire product becomes unusable. Therefore, regardless of the current fuse design, it can render electrical appliances unusable during international travel or business trips, reducing the user experience of the power converter. Utility Model Content

[0004] In view of the above situation, it is necessary to propose a power converter with a replaceable self-resetting fuse structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a power converter with a replaceable self-resetting fuse structure, comprising:

[0006] A housing assembly having an internal mounting cavity;

[0007] The main control circuit board is disposed within the mounting cavity;

[0008] The bracket assembly includes a base frame, a support member, and a top frame disposed within the mounting cavity, wherein one end of the support member is connected to the top frame and the other end is connected to the base frame;

[0009] The pin assembly, at least one set of the pin assemblies, is movably disposed within the mounting cavity. The top surfaces of the top frame and the housing assembly are provided with clearance holes for the pin assemblies to extend out. Each pin assembly is electrically connected to the main control circuit board.

[0010] A socket assembly is electrically connected to the main control circuit board. The socket assembly is disposed on the base frame. The bottom or side surface of the housing assembly is provided with a socket hole that is adapted to the socket assembly.

[0011] The self-resetting fuse assembly, the bracket assembly further includes a fuse mounting bracket with an opening at one end, the self-resetting fuse assembly being inserted into the fuse mounting bracket, the housing assembly having a fuse socket for inserting the self-resetting fuse assembly into the fuse mounting bracket, the bottom of the fuse mounting bracket having an electrical connection spring, the self-resetting fuse assembly having an electrical connection pin, the electrical connection pin being adapted to the electrical connection spring, and the electrical connection spring being electrically connected to the main control circuit board.

[0012] Furthermore, the self-resetting fuse assembly includes a self-resetting fuse and a fuse box. The fuse box is provided with a resilient hook that holds the end face of the self-resetting fuse. The fuse box is inserted into the fuse mounting bracket.

[0013] Furthermore, the safe box has a handle portion exposed from the housing assembly, and the housing assembly has a handle groove adapted to the handle portion.

[0014] Furthermore, an electrical connection spring is disposed within the mounting cavity, the electrical connection spring being electrically connected to the main control circuit board, and the electrical connection spring forming the electrical connection plug spring and the electrical connector within the socket assembly.

[0015] Furthermore, the socket assembly also includes a first sliding push plate, a second sliding push plate, and a first return elastic member. The bottom surface of the base frame is provided with a first sliding groove. The first sliding push plate is disposed in the first sliding groove and forms a first socket with the side wall of the first sliding groove. The second sliding push plate is disposed in the first sliding groove and forms a second socket with the first sliding push plate. One end of the first return elastic member abuts against the second sliding push plate, and the other end abuts against the end of the first sliding groove away from the first sliding push plate. The first sliding push plate is provided with a first inclined surface extending toward the first socket, and the second sliding push plate is provided with a second inclined surface extending toward the second socket.

[0016] Furthermore, the socket assembly also includes a sliding frame and a second return elastic member. The side of the base frame is provided with a second sliding groove, the sliding frame is disposed in the second sliding groove, the sliding frame has a clearance hole in the middle, the bracket has a protrusion extending into the clearance hole, one end of the second return elastic member abuts against the protrusion and the other end abuts against the sliding frame, a third socket is provided between the end of the second sliding groove away from the second return elastic member and the protrusion, a fourth socket is provided between the side wall of the second sliding groove away from the third socket and the sliding frame, and the sliding frame is provided with a third inclined surface extending into the third socket and a fourth inclined surface extending into the fourth socket.

[0017] Furthermore, the socket assembly includes at least one of the following: Australian standard socket, British standard socket, European standard socket, American standard socket, and Indian socket.

[0018] Furthermore, the pin assembly includes a sliding pin that slidably engages with the bracket assembly, and the sliding pin has a sliding lever protruding from the housing assembly.

[0019] Furthermore, the pin assembly includes a hinged pin that is hingedly connected to the top frame.

[0020] Furthermore, the pin assembly comprises at least one of the following: European standard pins, British standard pins, American standard pins, and Australian standard pins, consisting of a plurality of the sliding pins and / or the hinged pins.

[0021] The beneficial effects of this utility model are as follows: The installation of the plug assembly and socket assembly via the bracket assembly facilitates the movable installation of the plug assembly. The movable plug assembly allows for the selection of the appropriate plug assembly as needed, while concealing other plug assemblies, saving space. The mounting bracket is equipped with a fuse mounting bracket, and the self-resetting fuse assembly plugs into the fuse mounting bracket. It also forms an electrical connection with the main control circuit board through electrical connection pins and electrical connection springs. Its structure is simple, its conduction is stable, and it is easy to replace, ensuring worry-free use for international travel or business trips and improving the user experience of this power converter. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of another direction of the power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the protruding plug assembly of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the internal structure of the protruding pin assembly of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the electrical connection spring of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the electrical connection spring of a power converter with a replaceable self-resetting fuse structure in another direction according to an embodiment of this utility model.

[0029] Figure 8 This is a schematic diagram of the self-resetting fuse component of a power converter with a replaceable self-resetting fuse structure according to an embodiment of this utility model;

[0030] Figure 9 This is a schematic diagram of the bottom socket assembly of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0031] Figure 10 This is a schematic diagram of the side socket assembly of a power converter with a replaceable self-resetting fuse structure according to an embodiment of the present invention.

[0032] Label Explanation:

[0033] 100. Housing assembly; 110. Hand latch slot; 200. Main control circuit board; 300. Bracket assembly;

[0034] 310. Base frame; 311. First sliding groove; 312. Second sliding groove; 313. Protrusion;

[0035] 320. Support component; 330. Top frame; 340. Safety mounting bracket; 350. Slide rail; 400. Pin assembly;

[0036] 410. Sliding pin; 411. Sliding lever; 412. Sliding limit plate; 413. Limiting groove;

[0037] 431. European standard pins; 432. British standard pins; 433. American standard pins; 434. Australian standard pins;

[0038] 500. Socket assembly; 510. First sliding push plate; 511. First inclined surface;

[0039] 520. Second sliding push plate; 521. Second inclined surface; 530. First return elastic element;

[0040] 540. Sliding frame; 541. Third inclined plane; 542. Fourth inclined plane; 550. Second return elastic element;

[0041] 561. First socket; 562. Second socket; 563. Third socket; 564. Fourth socket;

[0042] 571. Australian standard socket; 572. British standard socket; 573. European standard socket; 574. American standard socket;

[0043] 575. Indian socket; 600. Resettable fuse assembly; 610. Resettable fuse;

[0044] 611 Electrical connection pin; 620 Fuse box; 621 Hand catch; 622 Flexible latch;

[0045] 700. Electrical connection spring; 701. Positive electrode spring; 702. Negative electrode spring;

[0046] 710. Electrical connection spring; 800. USB interface. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a power converter with a replaceable self-resetting fuse structure, in conjunction with the accompanying drawings and embodiments, provides further illustrative information. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0048] Please refer to Figures 1-10 A power converter with a replaceable self-resetting fuse structure, comprising:

[0049] Housing assembly 100, which has an internal mounting cavity;

[0050] The main control circuit board 200 is located inside the mounting cavity;

[0051] The bracket assembly 300 includes a base frame 310, a support member 320, and a top frame 330 disposed in the mounting cavity. One end of the support member 320 is connected to the top frame 330 and the other end is connected to the base frame 310.

[0052] The pin assembly 400, at least one set of pin assemblies 400 is movably configured in the mounting cavity, and the top surface of the top frame 330 and the housing assembly 100 are provided with clearance holes for the pin assembly 400 to extend out, and each pin assembly 400 is electrically connected to the main control circuit board 200.

[0053] The socket assembly 500 is electrically connected to the main control circuit board 200. The socket assembly 500 is mounted on the base frame 310. The bottom or side of the housing assembly 100 is provided with a socket hole that is compatible with the socket assembly 500.

[0054] The self-resetting fuse assembly 600 and the bracket assembly 300 also include a fuse mounting bracket 340, which is open at one end. The self-resetting fuse assembly 600 is inserted into the fuse mounting bracket 340. The housing assembly 100 has a fuse socket for inserting the self-resetting fuse assembly 600 into the fuse mounting bracket 340. The bottom of the fuse mounting bracket 340 is provided with an electrical connection spring 710. The self-resetting fuse assembly 600 is provided with an electrical connection pin 611, which is adapted to the electrical connection spring 710. The electrical connection spring 710 is electrically connected to the main control circuit board 200.

[0055] The plug assembly and socket assembly 500 are installed via the bracket assembly 300, facilitating the movable installation of the plug assembly. The movable plug assembly allows for the selection of the appropriate plug assembly while concealing other plug assemblies, saving space. The mounting bracket includes a fuse mounting bracket 340, to which the self-resetting fuse assembly 600 plugs. It is electrically connected to the main control circuit board 200 via electrical connection pins 611 and electrical connection springs 710. Its simple structure, stable conductivity, and easy replacement ensure worry-free use for international travel or business, enhancing the user experience of this power converter.

[0056] Please refer to Figure 8 The resettable fuse assembly 600 includes a resettable fuse 610 and a fuse box 620. The fuse box 620 is provided with a resilient hook 622, which holds the end face of the resettable fuse 610. The fuse box 620 is inserted into the fuse mounting bracket 340. The fuse box 620 makes it easier to insert and remove the resettable fuse assembly 600.

[0057] Please refer to Figure 1 and Figure 8 The safety box 620 has a handle portion 621 protruding from the housing assembly 100, and the housing assembly 100 has a handle groove 110 that matches the handle portion 621. This facilitates easy removal and replacement.

[0058] Please refer to Figure 6 and Figure 7 An electrical connection spring 700 is configured within the mounting cavity. The electrical connection spring 700 is electrically connected to the main control circuit board 200, forming an electrical connector within the electrical connection plug spring 710 and the socket assembly 500. Typically, the electrical connection spring 700 includes a positive spring 701 and a negative spring 702, which are electrically connected to the main control circuit board 200 respectively. For simplicity, a grounding spring can also be provided as needed. The grounding spring is usually directly grounded, and can be selected to pass through or not pass through the control circuit board as needed.

[0059] Please refer to Figure 9The socket assembly 500 further includes a first sliding push plate 510, a second sliding push plate 520, and a first return elastic member 530. The bottom surface of the base frame 310 is provided with a first sliding groove 311. The first sliding push plate 510 is disposed within the first sliding groove 311 and forms a first socket 561 with the side wall of the first sliding groove 311. The second sliding push plate 520 is disposed within the first sliding groove 311 and forms a second socket 562 between itself and the first sliding push plate 510. One end of the first return elastic member 530 abuts against the second sliding push plate 520, and the other end abuts against the end of the first sliding groove 311 away from the first sliding push plate 510. The first sliding push plate 510 is provided with a first inclined surface 511 extending towards the first socket 561, and the second sliding push plate 520 is provided with a second inclined surface 521 extending towards the second socket 562. The sliding push plates, when not subjected to external force, close the socket, preventing children's fingers from entering, improving safety, and also serving a dustproof function. In particular, the first socket 561 and the second socket 562 can be used for multiple purposes. For example, the first socket 561 can be a British standard socket 572 and an Australian standard socket 571, and the second socket 562 can be an Australian standard socket 571. The first socket 561 and the second socket 562 can be combined to form an Indian socket 575. The second socket 562 can be provided with a middle hole in the middle to form a three-hole American standard socket 574.

[0060] Please refer to Figure 10 The socket assembly 500 also includes a sliding frame 540 and a second return elastic member 550. A second sliding groove 312 is provided on the side of the base frame 310. The sliding frame 540 is disposed within the second sliding groove 312. A clearance hole is located in the center of the sliding frame 540. The bracket has a protrusion 313 extending into the clearance hole. One end of the second return elastic member 550 abuts against the protrusion 313, and the other end abuts against the sliding frame 540. A third socket 563 is provided between the end of the second sliding groove 312 away from the second return elastic member 550 and the protrusion 313. A fourth socket 564 is provided between the side wall of the second sliding groove 312 away from the third socket 563 and the sliding frame 540. The sliding frame 540 has a third inclined surface 541 extending towards the third socket 563 and a fourth inclined surface 542 extending towards the fourth socket 564. Providing sockets on the side improves space utilization. Preferably, both the third socket 563 and the fourth socket 564 are US standard sockets 574.

[0061] Please refer to Figure 2 The socket assembly 500 includes at least one of the following: Australian standard socket 571, British standard socket 572, European standard socket 573, American standard socket 574, and Indian socket 575.

[0062] Please refer to Figure 1 and Figures 3-5The pin assembly 400 includes a sliding pin 410, which slidably engages with the bracket assembly 300. The sliding pin 410 has a sliding lever 411 protruding from the housing assembly 100. Generally, the bracket assembly 300 is provided with a slide rail 350, and the sliding pin 410 slidably engages with the slide rail 350. In particular, it also includes a sliding limiting plate 412, which has limiting grooves 413 on both sides. The limiting grooves 413 are inclined or arc-shaped. The sliding limiting plate 412 slidably engages with the bracket assembly 300. When the sliding lever 411 moves up and down, it pushes the sliding limiting plate 412 to move left and right through the limiting grooves 413. This allows the limiting grooves 413 on the other side of the sliding limiting plate 412 to hold and lock another adjacent sliding pin 410, thereby ensuring safety and preventing multiple sliding pins 410 from extending simultaneously.

[0063] Please refer to Figure 1 and Figures 3-5 The pin assembly 400 includes a hinged pin 420, which is hingedly connected to the top frame 330. Generally, the hinged connection adopts a press-type, that is, pressing one end near the hinge axis causes the other end to pop out, and then pulling it out, that is, the end near the hinge axis extends with a pressing allowance.

[0064] Please refer to Figure 1 and Figures 3-5 The pin assembly 400 comprises at least one of the following: European standard pin 431, British standard pin 432, American standard pin 433, and Australian standard pin 434, consisting of a plurality of sliding pins 410 and / or hinged pins 420. Specifically, the European standard pin and the British standard pin 432 are both sliding pins 410, while the American and Australian standard pin is formed by a set of sliding pins 410 and a hinged pin 420.

[0065] Specifically, please refer to Figures 2-6 It also includes a USB interface 800, which is electrically connected to the main control circuit board 200. The USB interface 800 can be configured as a TYPE-C interface, USB-B interface, etc., as needed.

[0066] Specifically, the slide rail 350 can form a support member 320 that supports the top frame 310 and the bottom frame 330. That is, the slide rail 350 and the support member 320 are the same component.

[0067] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0068] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0069] In summary, this utility model provides a power converter with a replaceable self-resetting fuse structure. The plug and socket components are installed via a bracket assembly, facilitating the movable installation of the plug component. The movable plug component allows for selection of the appropriate plug component while concealing others, saving space. The mounting bracket includes a fuse mounting frame, to which the self-resetting fuse component plugs in and connects to the main control circuit board via electrical connection pins and contact springs. Its simple structure, stable conductivity, and easy replacement ensure worry-free use for international travel or business, enhancing the user experience of this power converter.

[0070] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A power converter with a replaceable self-resetting fuse structure, characterized in that, include: A housing assembly having an internal mounting cavity; The main control circuit board is disposed within the mounting cavity; The bracket assembly includes a base frame, a support member, and a top frame disposed within the mounting cavity, wherein one end of the support member is connected to the top frame and the other end is connected to the base frame; The pin assembly, at least one set of the pin assemblies, is movably disposed within the mounting cavity. The top surfaces of the top frame and the housing assembly are provided with clearance holes for the pin assemblies to extend out. Each pin assembly is electrically connected to the main control circuit board. A socket assembly is electrically connected to the main control circuit board. The socket assembly is disposed on the base frame. The bottom or side surface of the housing assembly is provided with a socket hole that is adapted to the socket assembly. The self-resetting fuse assembly, the bracket assembly further includes a fuse mounting bracket with an opening at one end, the self-resetting fuse assembly being inserted into the fuse mounting bracket, the housing assembly having a fuse socket for inserting the self-resetting fuse assembly into the fuse mounting bracket, the bottom of the fuse mounting bracket having an electrical connection spring, the self-resetting fuse assembly having an electrical connection pin, the electrical connection pin being adapted to the electrical connection spring, and the electrical connection spring being electrically connected to the main control circuit board.

2. The power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, The self-resetting fuse assembly includes a self-resetting fuse and a fuse box. The fuse box is provided with a flexible hook that holds the end face of the self-resetting fuse. The fuse box is inserted into the fuse mounting bracket.

3. A power converter with a replaceable self-resetting fuse structure according to claim 2, characterized in that, The safe box has a handle portion exposed from the housing assembly, and the housing assembly has a handle groove adapted to the handle portion.

4. A power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, An electrical connection spring is disposed in the mounting cavity. The electrical connection spring is electrically connected to the main control circuit board. The electrical connection spring forms the electrical connection plug spring and the electrical connector in the socket assembly.

5. A power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, The socket assembly further includes a first sliding push plate, a second sliding push plate, and a first return elastic member. The bottom surface of the base frame is provided with a first sliding groove. The first sliding push plate is disposed in the first sliding groove and forms a first socket with the side wall of the first sliding groove. The second sliding push plate is disposed in the first sliding groove and forms a second socket with the first sliding push plate. One end of the first return elastic member abuts against the second sliding push plate, and the other end abuts against the end of the first sliding groove away from the first sliding push plate. The first sliding push plate is provided with a first inclined surface extending towards the first socket, and the second sliding push plate is provided with a second inclined surface extending towards the second socket.

6. A power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, The socket assembly further includes a sliding frame and a second return elastic member. The side of the base frame is provided with a second sliding groove. The sliding frame is disposed in the second sliding groove. The sliding frame has a clearance hole in the middle. The bracket has a protrusion extending into the clearance hole. One end of the second return elastic member abuts against the protrusion and the other end abuts against the sliding frame. The end of the second sliding groove away from the second return elastic member has a third socket between it and the protrusion. The side wall of the second sliding groove away from the third socket has a fourth socket between it and the sliding frame. The sliding frame is provided with a third inclined surface extending into the third socket and a fourth inclined surface extending into the fourth socket.

7. A power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, The socket assembly includes at least one of the following: Australian standard socket, British standard socket, European standard socket, American standard socket, and Indian socket.

8. A power converter with a replaceable self-resetting fuse structure according to claim 1, characterized in that, The pin assembly includes a sliding pin that slides in engagement with the bracket assembly, and the sliding pin has a sliding lever protruding from the housing assembly.

9. A power converter with a replaceable self-resetting fuse structure according to claim 8, characterized in that, The pin assembly includes a hinged pin that is hinged to the top frame.

10. A power converter with a replaceable self-resetting fuse structure according to claim 9, characterized in that, The pin assembly comprises at least one of the following: European standard pins, British standard pins, American standard pins, and Australian standard pins, consisting of a plurality of sliding pins and / or hinged pins.

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