Modular acdc power interface extension device
By using modularly designed limit pins and buffer mechanisms, the fatigue damage problem at the connection point of the ACDC power interface expansion device in high vibration scenarios is solved, achieving effective absorption of vibration energy and convenient disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XINCHAOYUE ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-06-05
AI Technical Summary
The connection between the ACCDC power interface expansion device and the power module relies on mechanical connection and lacks stress buffering mechanism. In high vibration scenarios, it is prone to fatigue damage at the connection point, affecting disassembly.
A modular AC/DC power interface expansion device was designed, which adopts a limiting plug, a support component and a buffer mechanism. The buffer mechanism, which combines rubber and metal, absorbs vibration energy and prevents plastic deformation at the connection.
It effectively absorbs and dissipates vibration energy, prevents damage to the connection, ensures the good condition of the interface, facilitates subsequent disassembly and maintenance, and reduces maintenance difficulty and cost.
Smart Images
Figure CN224326624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of AC / DC power technology, specifically to a modular AC / DC power interface expansion device. Background Technology
[0002] ACDC power supplies, or AC-to-DC power supplies, are electronic devices that convert AC power used in homes or industries into DC power required by electronic devices. Their core function is to convert the input AC power into stable and reliable DC power through rectification, filtering, and voltage regulation to meet the DC power requirements of various electronic devices.
[0003] The AC-CDC power interface is a key part of connecting the AC-CDC power module to external circuits. Different application scenarios have different requirements for modular AC-CDC power interfaces. In order to ensure that the power module interface and external devices have good compatibility in terms of electrical characteristics, mechanical size, signal protocols, etc., power interface expansion devices are sometimes required.
[0004] However, the connection between the interface expansion device and the ACDC power supply mainly relies on mechanical connection and lacks stress buffering mechanism. In high vibration scenarios, the vibration of the interface expansion device and the ACDC power supply will cause fatigue damage at the connection between the two, affecting the disassembly of the interface expansion device. Therefore, a modular ACDC power supply interface expansion device is proposed to address the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a modular AC / DC power interface expansion device to solve the problem that the connection between the interface expansion device and the AC / DC power supply mainly relies on mechanical connection and lacks stress buffering mechanism. In high vibration scenarios, the vibration of the interface expansion device and the AC / DC power supply will cause plastic deformation at the connection between the two, which will affect the disassembly of the interface expansion device.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A modular AC-DC power interface expansion device includes an AC-DC power supply body and an interface expansion mechanism. The interface expansion mechanism is mounted on one side of the AC-DC power supply body. A limiting pin is fixedly connected to the bottom end of the interface expansion mechanism. The limiting pin is inserted into a support assembly. The support assembly includes a support plate. A limiting hole is formed on the outer side of the support plate, and an inter-plate groove is formed on the inner side of the support plate. An installation component is fixedly connected to the outer side of the support plate. An inter-plate hole is formed on the inner side of the support plate, and a hollow tube is fixedly connected to the inner side of the inter-plate hole. A mounting component is installed on the inner side of the support plate. The buffer mechanism includes a metal hook plate, a hollow rubber column glued to one side of the metal hook plate, a locking bolt spirally connected to the inner side of the metal hook plate, a washer spirally connected to the outer side of the locking bolt, a rubber tube fixedly connected to the inner side of the hollow rubber column, and a vertical plate. The buffer mechanism also includes a vertical plate, a rubber column fixedly connected to one side of the vertical plate, a rubber plug fixedly connected to one end of the rubber column, a connecting column fixedly connected to one side of the vertical plate, a compression sliding plate fixedly connected to one end of the connecting column, and a tension spring fixedly connected to one side of the compression sliding plate.
[0008] As a further optimization of this utility model, the height of the support plate is equal to the height of the limiting insertion post, and the limiting insertion holes are provided in a plurality of uniformly spaced manner, with the positions of the limiting insertion holes corresponding one-to-one with the positions of the inter-plate grooves.
[0009] As a further optimization of this utility model, the following features are provided: two mounting components are provided, the two mounting components are symmetrically distributed, the horizontal projection shape of the metal hook is an inverted "L" shape, one side of the metal hook is attached to the upper end of the ACDC power supply body, the locking bolt passes through the rubber hollow column, and a part of the rubber hollow column is inserted into the ACDC power supply body.
[0010] As a further optimization of this utility model, the outer diameter of the hollow rubber column is three-quarters of the outer diameter of the gasket, one side of the gasket is in contact with the AC / DC power supply body, and the central axis of the locking bolt and the central axis of the gasket are on the same straight line.
[0011] As a further optimization of this utility model, the rubber tube and the hollow rubber column are interconnected, one end of the rubber tube is disposed inside the hollow tube, and the rubber tube and the hollow tube are interconnected.
[0012] As a further optimization of this utility model, the following features are provided: the height of the upright plate is equal to the height of the support plate; the diameter of the connecting column is equal to the thickness of the extrusion sliding plate; the outer side of the extrusion sliding plate is in contact with the inner side of the inter-plate groove; one end of the tension spring is fixedly connected to the support plate; and the connecting column and the tension spring are staggered on both sides of the extrusion sliding plate.
[0013] As a further optimization of this utility model, the rubber columns are provided in two symmetrically distributed positions, the vertical cross-section of the rubber columns is elliptical, the positions of the rubber plugs correspond one-to-one with the positions of the rubber columns, the outer side of the rubber plugs is in close contact with the inner side of the hollow tube, and the sum of the lengths of the rubber columns and the rubber plugs is three-quarters of the length of the hollow tube.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, the supporting components enable the device to efficiently absorb and dissipate vibration energy through a composite buffering mechanism when subjected to external vibration, preventing damage to the connection due to stress concentration, ensuring that the interface is always in good condition, facilitating subsequent disassembly and maintenance, and reducing the difficulty and cost of equipment maintenance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a structural diagram showing the installation position of the limiting insert of this utility model;
[0018] Figure 3 This is a schematic diagram of the support component structure of this utility model;
[0019] Figure 4 This is an exploded view of the support component of this utility model;
[0020] Figure 5 This is a schematic diagram of the installation component structure of this utility model;
[0021] Figure 6 This is an exploded structural diagram of the mounting components of this utility model;
[0022] Figure 7 This is a schematic diagram of the buffer mechanism of this utility model.
[0023] In the diagram: 1. AC / DC power supply body; 2. Interface expansion mechanism; 3. Limiting pin; 4. Support assembly; 41. Support plate; 42. Limiting hole; 43. Inter-board groove; 44. Mounting assembly; 441. Metal hook plate; 442. Rubber hollow column; 443. Locking bolt; 444. Gasket; 445. Rubber tube; 45. Inter-board hole; 46. Hollow tube; 47. Buffer mechanism; 471. Vertical plate; 472. Rubber column; 473. Rubber plug; 474. Connecting column; 475. Squeezing sliding plate; 476. Tension spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] Please see Figure 1-7 This utility model provides a technical solution:
[0027] A modular AC-DC power interface expansion device includes an AC-DC power supply body 1 and an interface expansion mechanism 2. The interface expansion mechanism 2 is installed on one side of the AC-DC power supply body 1. A limiting pin 3 is fixedly connected to the bottom of the interface expansion mechanism 2. The limiting pin 3 is inserted into a support assembly 4. The support assembly 4 includes a support plate 41. A limiting hole 42 is opened on the outer side of the support plate 41. An inter-plate groove 43 is opened on the inner side of the support plate 41. An installation assembly 44 is fixedly connected to the outer side of the support plate 41. An inter-plate hole 45 is opened on the inner side of the support plate 41. A hollow tube 46 is fixedly connected to the inner side of the inter-plate hole 45. A buffer mechanism 47 is installed on the inner side of the support plate 41. The installation assembly 44 includes a metal... The metal hook plate 441 has a rubber hollow column 442 glued and fixed to one side. A locking bolt 443 is spirally connected to the inside of the metal hook plate 441, and a gasket 444 is spirally connected to the outside of the locking bolt 443. A rubber tube 445 is fixedly connected to the inside of the rubber hollow column 442. The buffer mechanism 47 includes a vertical plate 471. A rubber column 472 is fixedly connected to one side of the vertical plate 471. A rubber plug 473 is fixedly connected to one end of the rubber column 472. A connecting column 474 is fixedly connected to one side of the vertical plate 471. A compression sliding plate 475 is fixedly connected to one end of the connecting column 474. A tension spring 476 is fixedly connected to one side of the compression sliding plate 475.
[0028] As a further implementation of this solution, the height of the support plate 41 is equal to the height of the limiting pin 3. Several limiting holes 42 are provided and are evenly distributed. The position of the limiting holes 42 corresponds one-to-one with the position of the inter-plate groove 43. The setting that the height of the support plate 41 is equal to the height of the limiting pin 3 ensures that when the limiting pin 3 is fully inserted into the support plate 41, the upper end face of the support plate 41 can just fit against the bottom end face of the interface expansion mechanism 2, thereby achieving a better support effect.
[0029] As a further implementation of this solution, two mounting components 44 are provided, symmetrically distributed. The metal hook plate 441 has an inverted "L" shape in its lateral projection. One side of the metal hook plate 441 is attached to the upper end of the ACCDC power supply body 1. The locking bolt 443 passes through the rubber hollow column 442, a portion of which is inserted into the ACCDC power supply body 1. The outer diameter of the rubber hollow column 442 is three-quarters of the outer diameter of the gasket 444. One side of the gasket 444 is attached to the ACCDC power supply body 1. The locking bolt... The central axis of 443 and the central axis of shim 444 are on the same straight line. The setting of mounting component 44 can ensure the balance and stability of the structure, so that the force on both sides of the supporting component 4 is uniform. The shape of metal hook plate 441 can make it hold the ACCDC power body 1 well, playing a role in fixing and supporting. At the same time, metal hook plate 441 has a good ability to recover deformation. When the supporting component 4 vibrates, the reaction force of metal hook plate 441 itself and rubber hollow column 442 on it can better buffer the displacement of the component.
[0030] As a further implementation of this scheme, the rubber tube 445 and the hollow rubber column 442 are interconnected, one end of the rubber tube 445 is set inside the hollow tube 46, and the rubber tube 445 and the hollow tube 46 are interconnected. The connection method can ensure that the gas flows smoothly between the hollow rubber column 442 and the hollow tube 46, thereby realizing power transmission by means of gas flow.
[0031] As a further implementation of this scheme, the height of the upright plate 471 is equal to the height of the support plate 41, the diameter of the connecting column 474 is equal to the thickness of the pressing sliding plate 475, the outer side of the pressing sliding plate 475 is in contact with the inner side of the inter-plate groove 43, one end of the tension spring 476 is fixedly connected to the support plate 41, the connecting column 474 and the tension spring 476 are staggered on both sides of the pressing sliding plate 475, two rubber columns 472 are provided and symmetrically distributed, the vertical cross section of the rubber column 472 is elliptical, the position of the rubber plug 473 corresponds one-to-one with the position of the rubber column 472, the outer side of the rubber plug 473 is in close contact with the inner side of the hollow tube 46, the sum of the lengths of the rubber column 472 and the rubber plug 473 is three-quarters of the length of the hollow tube 46, the height of the upright plate 471 is equal to the height of the support plate 41 to prevent the upright plate 471 from moving. Even when the interface expansion mechanism 2 collides, it can prevent the upright plate 471 from entering the inter-plate groove 43. The design that the diameter of the connecting column 474 is equal to the height of the extrusion sliding plate 475 and that the outer side of the extrusion sliding plate 475 fits against the inner side of the inter-plate groove 43 makes the sliding of the extrusion sliding plate 475 in the inter-plate groove 43 more stable and will not shift due to the gap between the components. The elliptical vertical section of the rubber column 472 makes the contact area between the rubber column 472 and the inner side of the hollow tube 46 smaller, preventing wear on its own surface. The design that the sum of the lengths of the rubber column 472 and the rubber plug 473 is three-quarters of the length of the hollow tube 46 allows the rubber column 472 and the rubber plug 473 to take away more air when they are pulled out of the hollow tube 46, without falling off the hollow tube 46.
[0032] Working process: When using the device, insert the hollow rubber column 442 into the ACCDC power supply body 1. Then, fix the gasket 444 to one side of the ACCDC power supply body 1 by rotating the locking bolt 443. At the same time, make the locking bolt 443 pass through the hollow rubber column 442 and form a spiral connection with the metal hook plate 441, so that the metal hook plate 441 hooks onto the ACCDC power supply body 1, completing the fixation of the support component 4. Then, fix the interface expansion mechanism 2 to the ACCDC power supply body 1 with screws. The bottom end of the interface expansion mechanism 2 is attached to the upper surface of the support plate 41, and the limiting pins 3 are all inserted into the corresponding limiting holes 42. When the device vibrates due to external force, the ACDC power supply body 1 transmits the force received from the interface expansion mechanism 2 to the limiting pins 3. The limiting pins 3 apply force to the pressing sliding plate 475 set in the inter-plate groove 43. When the pressing sliding plate 475 is displaced, it will drive the tension spring 476 on one side to deform, and at the same time push the connecting pin 474 on one side to move. The movement of the vertical plate 471 will cause the rubber column 472 to move, which in turn will cause the rubber plug 473 to slide inside the hollow tube 46, creating a negative pressure inside the hollow tube 46. The negative pressure generated inside the hollow tube 46, combined with the force exerted on the buffer mechanism 47 and the deformation of the tension spring 476, buffers the force on the limiting plug 3, thus effectively buffering the interface expansion mechanism 2, which is fixedly connected to the limiting plug 3, during vibration and preventing the interface expansion mechanism 2 from detaching from the ACCDC power supply body 1. Deformation occurs at the joint. At the same time, the negative pressure generated inside the hollow tube 46 allows air from the rubber tube 445 and the hollow rubber column 442 connected to the hollow tube 46 to enter the hollow tube 46. When the air in the hollow rubber column 442 decreases, the volume of the hollow rubber column 442 will decrease, making the gap between it and the ACCDC power supply body 1 larger. This reduces the pressure of the support component 4 on the ACCDC power supply body 1 when the device vibrates, and prevents the subsequent installation component 44 from being difficult to remove from the ACCDC power supply body 1.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modular AC / DC power interface expansion device, comprising an AC / DC power supply body (1) and an interface expansion mechanism (2), characterized in that: An interface expansion mechanism (2) is installed on one side of the ACDC power supply body (1). The bottom end of the interface expansion mechanism (2) is fixedly connected to a limiting plug (3), which is inserted into the support assembly (4). The supporting component (4) includes a support plate (41), a limiting insertion hole (42) is provided on the outer side of the support plate (41), a plate groove (43) is provided on the inner side of the support plate (41), an installation component (44) is fixedly connected to the outer side of the support plate (41), a plate hole (45) is provided on the inner side of the support plate (41), a hollow tube (46) is fixedly connected to the inner side of the plate hole (45), and a buffer mechanism (47) is installed on the inner side of the support plate (41). The mounting assembly (44) includes a metal hook plate (441), a rubber hollow column (442) is glued and fixed to one side of the metal hook plate (441), a locking bolt (443) is spirally connected to the inside of the metal hook plate (441), a washer (444) is spirally connected to the outside of the locking bolt (443), and a rubber tube (445) is fixedly connected to the inside of the rubber hollow column (442). The buffer mechanism (47) includes a vertical plate (471), a rubber column (472) is fixedly connected to one side of the vertical plate (471), a rubber plug (473) is fixedly connected to one end of the rubber column (472), a connecting column (474) is fixedly connected to one side of the vertical plate (471), a compression sliding plate (475) is fixedly connected to one end of the connecting column (474), and a tension spring (476) is fixedly connected to one side of the compression sliding plate (475).
2. The modular AC-CDC power interface expansion device according to claim 1, characterized in that: The height of the tray (41) is equal to the height of the limiting insert (3). There are several limiting insert holes (42) that are evenly and equidistantly distributed. The position of the limiting insert hole (42) corresponds one-to-one with the position of the inter-plate groove (43).
3. The modular AC-CDC power interface expansion device according to claim 1, characterized in that: There are two mounting components (44), which are symmetrically distributed. The metal hook plate (441) has an inverted "L" shape in its horizontal projection. One side of the metal hook plate (441) is attached to the upper end of the ACDC power supply body (1). The locking bolt (443) passes through the rubber hollow column (442), and a part of the rubber hollow column (442) is inserted into the ACDC power supply body (1).
4. The modular AC-CDC power interface expansion device according to claim 1, characterized in that: The outer diameter of the hollow rubber column (442) is three-quarters of the outer diameter of the gasket (444). One side of the gasket (444) is in contact with the ACCDC power supply body (1). The central axis of the locking bolt (443) and the central axis of the gasket (444) are on the same straight line.
5. A modular AC-DC power interface expansion device according to claim 1, characterized in that: The rubber tube (445) and the hollow rubber column (442) are interconnected. One end of the rubber tube (445) is placed inside the hollow tube (46), and the rubber tube (445) and the hollow tube (46) are interconnected.
6. A modular AC-CDC power interface expansion device according to claim 1, characterized in that: The height of the upright plate (471) is equal to the height of the support plate (41), the diameter of the connecting column (474) is equal to the thickness of the extrusion sliding plate (475), the outer side of the extrusion sliding plate (475) is in contact with the inner side of the inter-plate groove (43), one end of the tension spring (476) is fixedly connected to the support plate (41), and the connecting column (474) and the tension spring (476) are staggered on both sides of the extrusion sliding plate (475).
7. A modular AC-CDC power interface expansion device according to claim 1, characterized in that: Two rubber columns (472) are provided and are symmetrically distributed. The vertical cross section of the rubber column (472) is elliptical. The position of the rubber plug (473) corresponds one-to-one with the position of the rubber column (472). The outer side of the rubber plug (473) is in close contact with the inner side of the hollow tube (46). The sum of the lengths of the rubber column (472) and the rubber plug (473) is three-quarters of the length of the hollow tube (46).