Power supply convenient for replacing fuse

Abstract

The utility model discloses a power supply convenient to replace a fuse, which relates to the technical field of power supplies, and is technically characterized in that the power supply comprises a power supply body and a fuse, the power supply body is provided with an accommodating groove, the bottom of the accommodating groove is provided with a first contact, and the outer wall of one end, far away from the first contact, of the accommodating groove is provided with a second contact; the two ends of the fuse are connected with first conductive blocks, and the outer edges of the two first conductive blocks are connected through a glass cover. Internal threads are arranged on the inner wall of the end, away from the first contact, of the containing groove, a closed cover plate is connected to an opening of the containing groove, an external thread ring is fixedly arranged on the closed cover plate through a second conductive block, the external thread ring is matched with the internal threads, and an operation assembly is arranged on the face, away from the external thread ring, of the closed cover plate; the fuse is convenient to replace, and the operation is simple, convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply technology field especially, it is a kind of power supply that facilitates replacement of fuse. BACKGROUND

[0002] Power supply is an indispensable component in electronic equipment, its main function is to convert the input electric energy into the electric energy form suitable for equipment use.In the design of power supply, the role of fuse is crucial, it can automatically fuse when circuit overload or short circuit occurs, thereby protecting power supply and connected electronic equipment from damage.

[0003] The main role of fuse is to provide protection when circuit overload or short circuit occurs.When the current in the circuit exceeds the rated current value of fuse, fuse will automatically fuse, thereby cutting off the circuit, prevent current from continuing to cause damage to circuit and equipment.This protection mechanism is crucial for long-term stable operation of electronic equipment.

[0004] In the design of traditional power supply, fuse is usually fixed in a certain position, and needs to disassemble the shell of power supply or carry out complex operation when replacing.This not only increases the difficulty of replacing fuse, but also can cause additional damage to power supply. SUMMARY

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a kind of power supply that facilitates replacement of fuse, it is convenient to replace fuse, and operation is simple and fast.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of power supply that facilitates replacement of fuse, including power supply body and fuse, the power supply body is equipped with accommodating groove, the first contact is arranged in the bottom of accommodating groove, the second contact is arranged in the outer wall of the end of accommodating groove away from first contact;The first conductive block is connected at both ends of the fuse, and the two first conductive blocks are connected by glass cover between outer edge;

[0008] The inner wall of the end of accommodating groove away from first contact is provided with internal thread, the opening of accommodating groove is connected with closed cover plate, the closed cover plate is fixedly provided with external thread ring by second conductive block, the external thread ring is matched with internal thread, and the one side of closed cover plate away from external thread ring is provided with operating assembly;When the external thread ring is connected with internal thread by thread, the outer wall of second conductive block is attached with second contact;

[0009] When power on, current passes through first contact, first conductive block, fuse, first conductive block, second conductive block and second contact in sequence.

[0010] By adopting the above scheme, the fuse module is composed of a fuse, two first conductive blocks and a glass cover. The two ends of the fuse are connected with the two first conductive blocks respectively, and the glass cover is used to fix the two conductive blocks and provide electrical insulation protection. During installation, first, the fuse module is aligned with the accommodating groove on the power supply body. The closed cover plate is rotated, and the outer threaded ring is threadedly connected with the inner thread in the accommodating groove.

[0011] During the rotation process, the outer wall of the second conductive block gradually fits with the second contact to establish an electrical connection. When the fuse module is installed in place, the first conductive block contacts the first contact at the bottom of the accommodating groove, thereby establishing a first electrical connection path. With the rotation of the closed cover plate, the outer wall of the second conductive block gradually fits with the second contact to establish a second electrical connection path. When the above two electrical connection paths are established, the current can flow through the fuse module inside the power supply body. The fuse is an electronic component that protects the circuit. When excessive current appears in the circuit, the fuse will melt, thereby cutting off the circuit and protecting other devices in the circuit from damage.

[0012] When the fuse is blown, a new fuse module needs to be replaced. The closed cover plate is counterclockwise rotated to separate the outer threaded ring from the inner thread. The old fuse module is removed, a new fuse module is aligned with the accommodating groove and reinstalled. The above installation process is repeated to ensure that the new fuse module is correctly installed and electrical connection is established. Through the threaded connection mechanism, the user can easily install or remove the fuse module without complex tools or steps. The operation assembly provided on the closed cover plate facilitates the user to hold and rotate the closed cover plate, further simplifying the operation steps of replacing the fuse. In summary, the technical scheme realizes the convenient replacement of the fuse and the rapid establishment of the electrical connection through the modular design, the threaded connection mechanism and the setting of the operation assembly. These design features not only improve the efficiency of replacing the fuse, but also ensure the safety and reliability of the power supply.

[0013] Preferably, an active slot is formed in the first contact, a return spring is arranged in the active slot, and an active rod is connected to the other end of the return spring.

[0014] Preferably, an insulating head is arranged at the end of the active rod away from the return spring.

[0015] Preferably, the operation assembly is a semicircular operation rod, and the two ends of the operation rod are hingedly connected with the closed cover plate.

[0016] Preferably, the outer diameter of the second conductive block is greater than the outer diameter of the outer threaded ring.

[0017] The utility model has the following beneficial effects:

[0018] I. Easy to replace fuses: The threaded connection design between the inner threads and the outer threaded ring allows users to easily rotate the closure cover to install or remove the fuse module. This design greatly simplifies the process of replacing fuses, making it more convenient and efficient. The operating components on the closure cover, such as the semi-circular operating lever, further enhance the convenience of operation, allowing users to easily hold and rotate the operating lever to open or close the closure cover.

[0019] II. Stable and reliable electrical connection: When the outer threaded ring is threadedly connected with the inner threads, the second conductive block outer wall closely fits the second contact, ensuring the stability and reliability of the electrical connection. The contact between the first contact and the first conductive block also ensures that the current can smoothly pass through the fuse module.

[0020] III. Enhanced safety: The design of the glass cover not only fixes the two first conductive blocks, but also provides electrical insulation protection, increasing the safety of the entire fuse module. The design of the movable lever and the return spring may be used to provide some form of mechanical feedback or auxiliary mechanism for disconnecting the circuit when the fuse is blown (although the specific role is not explicitly stated, the combination of return spring and movable lever is generally used for such purposes). The provision of the insulating head further enhances safety during operation, preventing users from accidentally touching live wires when replacing fuses.

[0021] IV. Compact structure and easy maintenance: The design of the entire fuse module and the power supply body is relatively compact, reducing the space occupied. Due to the use of modular design, users can easily replace the fuse module without the need to disassemble the entire power supply.

[0022] V. Strong adaptability: The outer diameter of the second conductive block is greater than the outer diameter of the outer threaded ring, which may mean that the second conductive block has a larger contact area with the second contact, providing a more stable electrical connection. This design may also enable the second conductive block to better carry current, adapting to the needs of different loads.

[0023] VI. In summary, this technical solution achieves the benefits of easy replacement of fuses, stable and reliable electrical connection, enhanced safety, compact structure and easy maintenance, and strong adaptability through a series of ingenious designs and innovations. These features make the power supply more efficient and reliable in actual application. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 The accommodating groove sectional view of the first embodiment of the utility model.

[0026] Figure 2 The first contact sectional view of the second embodiment of the utility model.

[0027] In the figure: 1, power supply body; 101, accommodating groove; 201, fuse; 202, first conductive block; 203, glass cover; 301, first contact; 302, second contact; 303, internal thread; 401, closure cover plate; 402, second conductive block; 403, external thread ring; 404, operating rod; 501, movable slot; 502, reset spring; 503, movable rod; 504, insulating head. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] The first embodiment, as shown in Figure 1 A power supply convenient for replacing fuse, including power supply body 1 and fuse 201, the power supply body 1 is set with accommodating groove 101, the accommodating groove 101 bottom is provided with first contact 301, and the outer wall of the one end of the accommodating groove 101 away from the first contact 301 is provided with second contact 302;The both ends of fuse 201 are connected with first conductive block 202, and the two first conductive blocks 202 are connected by glass cover 203 between the outer edges;The inner wall of the one end of accommodating groove 101 away from the first contact 301 is provided with internal thread 303, and the opening of the accommodating groove 101 is connected with closure cover plate 401, and the closure cover plate 401 is fixedly provided with external thread ring 403 through second conductive block 402, and the external thread ring 403 is matched with internal thread 303, and the one side of the closure cover plate 401 away from the external thread ring 403 is provided with operating assembly;When the external thread ring 403 is screwed with the internal thread 303, the outer wall of the second conductive block 402 is attached with the second contact 302;When energized, the current passes through the first contact 301, the first conductive block 202, the fuse 201, the first conductive block 202, the second conductive block 402 and the second contact 302 in turn.

[0030] As Figure 1As shown, the fuse 201 and its connecting structure (including the first conductive blocks 202 and the glass cover 203) are designed as a relatively independent module. This design allows the fuse 201 module to be easily installed or removed as a whole without the need for complex disassembly or reconstruction of the power supply body 1. Through the threaded connection of the internal thread 303 and the external thread ring 403, the fuse 201 module can be firmly fixed in the accommodation groove 101, while ensuring the safety of the electrical connection. This connection method is not only simple and reliable, but also easy to operate, and users only need to rotate the closure cover plate 401 to achieve installation or removal, greatly simplifying the process of replacing the fuse 201. The matching design of the first conductive blocks 202 with the first contacts 301 and the second conductive blocks 402 with the second contacts 302 ensures that the fuse 201 module can quickly establish an electrical connection after installation. This design not only improves the efficiency of the connection, but also ensures the stability and safety of the connection. The operation assembly (although the specific form is not described in detail) provided on the closure cover plate 401 can include knobs, handles, etc., which are convenient for users to hold and rotate the closure cover plate 401, thereby further simplifying the operation steps of replacing the fuse 201. The glass cover 203 not only plays a role in fixing the two first conductive blocks 202, but also provides additional electrical insulation protection, increasing the safety and reliability of the entire fuse 201 module, while also facilitating the observation of the status of the fuse 201. In summary, this technical solution achieves the beneficial effects of facilitating the replacement of the fuse 201 and simple and quick operation through modular design, threaded connection mechanism, matching of conductive blocks and contacts, setting of operation assembly, and protective effect of the glass cover 203. These design features not only improve the efficiency of replacing the fuse 201, but also ensure the safety and reliability of the power supply.

[0031] As shown, Figure 1 The operation assembly is designed as a semicircular operation lever 404, which is hingedly connected to the closure cover plate 401 at both ends. Since the operation lever 404 is semicircular, users can easily hold and rotate it with their fingers or tools. This design is more ergonomic than a linear operation lever 404, making it easier and more stable for users to rotate the closure cover plate 401. By rotating the operation lever 404, users can easily control the opening and closing of the closure cover plate 401. When replacing the fuse 201 is needed, users only need to rotate the operation lever 404 counterclockwise to separate the external thread ring 403 on the closure cover plate 401 from the internal thread 303 in the accommodation groove 101, thereby opening the closure cover plate 401. Conversely, when the replacement of the fuse 201 is completed, users only need to rotate the operation lever 404 clockwise to re-fix the closure cover plate 401 to the accommodation groove 101.

[0032] As shown, Figure 1As shown, the outer diameter of the second conductive block 402 is larger than the outer diameter of the outer threaded ring 403. The outer diameter of the second conductive block 402 is designed to be larger than the outer diameter of the outer threaded ring 403. This means that the second conductive block 402 has a larger size in the radial direction, which can better contact the second contact 302. Because the outer diameter of the second conductive block 402 is larger, the contact area with the second contact 302 will also increase accordingly. This helps to improve the stability of the electrical connection and reduce the risk of current interruption or short circuit caused by poor contact. A larger contact area also means that the second conductive block 402 can better carry the current. In the power supply, the current may be transmitted through various parts in the fuse 201 module. Therefore, the second conductive block 402 with a larger contact area can better adapt to the needs of different loads, ensuring smooth transmission of current. Designing the outer diameter of the second conductive block 402 to be larger than the outer diameter of the outer threaded ring 403 can also protect the outer threaded ring 403. When rotating the closure cover plate 401, the outer threaded ring 403 may be subject to some friction and wear. Because the outer diameter of the second conductive block 402 is larger, it can serve as an additional protective layer to reduce the degree of wear of the outer threaded ring 403 and extend its service life.

[0033] The second embodiment, as shown in Figure 2 The first contact 301 is provided with a movable slot 501, and the movable slot 501 is provided with a reset spring 502, and the other end of the reset spring 502 is connected with a movable rod 503. The movable slot 501 provides a space for the reset spring 502 and the movable rod 503 to install and move.

[0034] The reset spring 502 has a restoring force and will be compressed or stretched when subjected to an external force, and will try to return to its original state after the external force disappears. The reset spring 502 plays a key role in the design of the movable rod 503. When the closure cover plate 401 is opened, the reset spring 502 releases energy and pushes the movable rod 503 to move in a specific direction, ejecting the fuse 201 from the installation position, making it easy for users to take and replace. This design improves the convenience and safety of operation, ensuring the long-term reliability of the power supply.

[0035] As shown in Figure 2 The end of the movable rod 503 away from the reset spring 502 is provided with an insulating head 504. The insulating head 504 is provided at the end of the movable rod 503 away from the reset spring 502, and its main function is to provide electrical insulation protection. In the power system, insulating materials are used to prevent current from flowing through unwanted paths, thereby protecting equipment and personnel from the risk of electric shock or short circuit. In this design, the insulating head 504 can be used to prevent the movable rod 503 from making electrical contact with other parts of the power supply body 1 during movement, thereby ensuring the safety of operation.

[0036] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0037] In the utility model, unless another explicit provision and limitation, the terms "mount", "connect", "connect", "fix" and the like should be understood broadly, for example, can be connected, can also be detachable connection, or be integrated;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] The above is only the specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to solve basically the same technical problem and realize basically the same technical effect is covered in the protection scope of the utility model.

Claims

1. A power supply unit with a convenient fuse replacement, comprising a power supply body (1) and a fuse (201), characterized in that: The power supply body (1) has a receiving groove (101) and a first contact (301) is provided at the bottom of the receiving groove (101). A second contact (302) is provided on the outer wall of the receiving groove (101) away from the first contact (301). Both ends of the fuse (201) are connected to a first conductive block (202), and the outer edges of the two first conductive blocks (202) are connected by a glass cover (203). The inner wall of the receiving groove (101) away from the first contact (301) is provided with an internal thread (303). A closing cover plate (401) is connected to the opening of the receiving groove (101). An external threaded ring (403) is fixedly provided on the closing cover plate (401) through a second conductive block (402). The external threaded ring (403) is adapted to the internal thread (303). An operating component is provided on the side of the closing cover plate (401) away from the external threaded ring (403). When the external threaded ring (403) is threadedly connected to the internal thread (303), the outer wall of the second conductive block (402) is in contact with the second contact (302). When energized, the current flows sequentially through the first contact (301), the first conductive block (202), the fuse (201), the first conductive block (202), the second conductive block (402), and the second contact (302).

2. A power supply unit with a convenient fuse replacement according to claim 1, characterized in that: The first contact (301) has a movable groove (501) inside, and a return spring (502) is provided in the movable groove (501). The other end of the return spring (502) is connected to a movable rod (503).

3. A power supply unit with a convenient fuse replacement according to claim 2, characterized in that: An insulating head (504) is provided at the end of the movable rod (503) away from the return spring (502).

4. A power supply unit with a convenient fuse replacement according to claim 1, characterized in that: The operating component is configured as a semi-circular operating lever (404), and both ends of the operating lever (404) are hinged to the closed cover plate (401).

5. A power supply unit for convenient fuse replacement according to claim 1, characterized in that: The outer diameter of the second conductive block (402) is larger than the outer diameter of the external threaded ring (403).

Images