Two-board power supply conversion device

Abstract

A two-board power supply conversion device comprises a box body, an upper mounting plate and a lower mounting plate are arranged in the box body, a bakelite plate is arranged between the upper mounting plate and the lower mounting plate, fixing holes are formed in the upper mounting plate and the lower mounting plate, and the upper end and the lower end of the bakelite plate are fixedly connected with the upper mounting plate and the lower mounting plate through fixing parts respectively. The fixing component comprises a fixing rod, the fixing rod comprises an outer connecting rod and an inner connecting rod arranged in the outer connecting rod in a sleeved mode, clamping cavities are formed in the upper side and the lower side of the outer connecting rod, and clamping blocks extending out of the outer connecting rod are arranged in the clamping cavities. The outer walls of the clamping blocks are clamped with the inner walls of the fixing holes, so that the fixing parts are fixedly connected with the upper mounting plate and the lower mounting plate, the upper mounting plate and the bakelite plate are connected through the fixing parts, and the lower mounting plate and the bakelite plate are connected through the fixing parts, so that disassembly can be faster and more convenient when equipment breaks down; and only the inner connecting rod of the fixing part needs to be pulled out, so that the replacement and maintenance efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a two-side power conversion device, belonging to the field of power devices. Background Art

[0002] The two-side power conversion device is a device that is mainly used for manual / automatic switching of two input power supplies for important loads of the ship's power grid. This device provides a variety of power supply modes, including manual, automatic, primary and standby priority, etc., to meet the needs of different application scenarios. Specifically, the working principle of the two-side power conversion device involves the operation of a bidirectional contactor. When both sides of the power supply are powered at the same time, the auxiliary contact on the left is closed, so that the right circuit does not work, thereby maintaining the power supply of the left power supply. If the port power supply loses power, the right attraction coil is energized and the main contact turns to the right and closes, and the power is supplied by the right power supply.

[0003] The automatic switching device for both sides of the ship can supply power to the load from the power supply transmitted from the front power station or the rear power station by manual or automatic switching. When the port (starboard) power supply is interrupted, the device can automatically switch to the starboard (port) power supply within a specified time, or perform the power switching between both sides manually (mechanically).

[0004] However, the existing two-side power conversion devices have the problem of loose installation after multiple actions and difficulty in replacing parts, which causes great use problems when the maintenance tools on the ship are limited. Utility Model Content

[0005] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide a two-side power conversion device.

[0006] A two-side power conversion device comprises a box body, an upper mounting plate and a lower mounting plate are arranged in the box body, a bakelite board is arranged between the upper mounting plate and the lower mounting plate, fixing holes are arranged on the upper mounting plate and the lower mounting plate, the upper and lower ends of the bakelite board are respectively fixedly connected with the upper mounting plate and the lower mounting plate through fixing components, the fixing components comprise a fixing rod, the fixing rod comprises an outer connecting rod and an inner connecting rod sleeved in the outer connecting rod, a clamping cavity is arranged on the upper and lower sides of the outer connecting rod, a clamping block extending from the outer connecting rod is arranged in the clamping cavity, and the outer wall of the clamping block is clamped with the inner wall of the fixing hole The connection makes the fixing components form fixed connections with the upper mounting plate and the lower mounting plate respectively. The upper mounting plate and the bakelite board, the lower mounting plate and the bakelite board are connected by the fixing components. This can make disassembly faster and more convenient when equipment fails. It is only necessary to pull out the inner connecting rod of the fixing component. Replacement and maintenance are more efficient, and looseness will not occur during normal fixation. This has a better effect on the use of ships, ensures the stability and safety of the installation, improves the efficiency of installation and disassembly, saves time, reduces production and use costs, and prevents safety problems and property losses.

[0007] Preferably, a fixing cavity is provided in the fixing hole, and the outer wall of the clamping block is clamped with the inner wall of the fixing cavity. The fixing cavity and the clamping block are clamped so that the fixing component is fixedly connected to the upper mounting plate and the lower mounting plate respectively, which can improve the operating stability of the equipment and make it more reliable during use. The fixing cavity allows the inner connecting rod and the outer connecting rod to extend into form a clamping connection, and the practical effect is convenient and fast.

[0008] Preferably, a sliding sleeve is provided on the fixed sleeve of the inner connecting rod, and a fixed block is provided at the bottom of the clamping block. The sliding sleeve and the fixed block are connected by a connecting rod. When the positioning block and the mounting plate need to be separated, the inner connecting rod is moved outward, and the inner connecting rod drives the clamping block to move downward through the sliding sleeve, the connecting rod and the fixed block, and shrinks into the clamping cavity, so that the positioning block and the mounting plate can be separated. The operation is simple and quick, and it is convenient and practical.

[0009] Furthermore, a mounting block is provided at the bottom of the snap-in cavity, and limit blocks are provided at the bottom of both sides of the snap-in block. The limit blocks are snap-connected to the snap-in cavity, and a return spring is connected between the mounting block and the limit block. The return spring can keep the snap-in block always extending out of the snap-in cavity, and the position of the mounting plate is fixed by the abutment action between the snap-in block and the positioning block.

[0010] Furthermore, a first pulling ring is provided at one end of the inner connecting rod, and a second pulling ring is rotatably provided at one end of the outer connecting rod, and when disassembly is required, the first pulling ring and the second pulling ring are used to perform the operation.

[0011] Preferably, an input copper busbar is provided on the bakelite board, and the input copper busbar is used to install electrical components, and various electrical components can be installed on the input copper busbar.

[0012] Preferably, insulators are provided on the upper and lower sides of the lower mounting plate to improve the insulation of the equipment and prevent safety problems caused by electrical conduction.

[0013] Furthermore, the lower mounting plate is provided with an output copper busbar for forming an electrical connection with the electrical components on the input copper busbar.

[0014] The beneficial effects of the utility model are as follows: by connecting the upper mounting plate and the bakelite board, and the lower mounting plate and the bakelite board through the fixing components, disassembly can be quicker and more convenient when the equipment fails. It only needs to pull out the inner connecting rod of the fixing component, which makes replacement and maintenance more efficient, and will not loosen during normal fixing. It has a better effect on the use of ships, ensures the stability and safety of the installation, improves the efficiency of installation and disassembly, saves time, reduces production and use costs, and prevents safety problems and property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a side structural schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 A detailed enlarged schematic diagram of the center A;

[0019] Figure 4 is a structural schematic diagram of a fixed rod;

[0020] Figure 5 is a schematic diagram of the cross-sectional structure of the fixing rod;

[0021] In the figure, 1, box body; 111, fixing hole; 112, fixing cavity; 11, upper mounting plate; 12, lower mounting plate; 121, insulator; 122, output copper bus; 13, bakelite; 2, fixing rod; 21, outer connecting rod; 211, clamping cavity; 212, clamping block; 213, fixing block; 214, connecting rod; 215, limiting block; 216, mounting block; 217, second pulling ring; 22, inner connecting rod; 221, sliding sleeve; 222, first pulling ring; 223, reset spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0023] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0024] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0025] like Figure 1-3 As shown, an embodiment of a two-side power conversion device of the utility model comprises a box body 1, wherein an upper mounting plate 11 and a lower mounting plate 12 are arranged in the box body 1, a bakelite board 13 is arranged between the upper mounting plate 11 and the lower mounting plate 12, and fixing holes 111 are arranged on the upper mounting plate 11 and the lower mounting plate 12, and the upper and lower ends of the bakelite board 13 are respectively fixedly connected to the upper mounting plate 11 and the lower mounting plate 12 through fixing components, and the fixing components comprise a fixing rod 2, and the fixing rod 2 comprises an outer connecting rod 21 and an inner connecting rod 22 sleeved in the outer connecting rod 21, and a clamping cavity 211 is arranged on the upper and lower sides of the outer connecting rod 21, and a clamping block extending from the outer connecting rod 21 is arranged in the clamping cavity 211 212, the outer wall of the clamping block 212 is clamped with the inner wall of the fixing hole 111 so that the fixing component is fixedly connected with the upper mounting plate 11 and the lower mounting plate 12 respectively. The upper mounting plate 11 and the bakelite board 13, the lower mounting plate 12 and the bakelite board 13 are connected by the fixing component. When the equipment fails, the disassembly is faster and more convenient. Only the inner connecting rod 22 of the fixing component needs to be pulled outward. The replacement and maintenance efficiency is higher, and no looseness will occur during normal fixation. The use effect on the ship is better, the stability and safety of the installation are guaranteed, the efficiency of installation and disassembly is improved, time is saved, the production and use costs are reduced, and safety problems and property losses are prevented.

[0026] A fixing cavity 112 is provided in the fixing hole 111, and the outer wall of the clamping block 212 is clamped with the inner wall of the fixing cavity 112. The clamping of the fixing cavity 112 and the clamping block 212 enables the fixing components to be fixedly connected to the upper mounting plate 11 and the lower mounting plate 12 respectively, which can improve the operating stability of the equipment and make it more reliable during use. The fixing cavity 112 allows the inner connecting rod 22 and the outer connecting rod 21 to extend into the fixing cavity to form a clamping connection, and the practical effect is convenient and fast.

[0027] A sliding sleeve 221 is provided on the fixed sleeve of the inner connecting rod 22, and a fixed block 213 is provided at the bottom of the clamping block 212. The sliding sleeve 221 and the fixed block 213 are connected by a connecting rod 214. When the positioning block and the mounting plate need to be separated, the inner connecting rod 22 is moved outward, and the inner connecting rod 22 drives the clamping block 212 to move downward through the sliding sleeve 221, the connecting rod 214, and the fixed block 213, and shrinks into the clamping cavity 211, so that the positioning block and the mounting plate can be separated. The operation is simple and quick, and it is convenient and practical.

[0028] A mounting block 216 is provided at the bottom of the snap-in cavity 211, and limit blocks 215 are provided at the bottom of both sides of the snap-in block 212. The limit blocks 215 are snap-fitted to the snap-in cavity 211, and a return spring 223 is connected between the mounting block 216 and the limit block 215. The return spring 223 can keep the snap-in block 212 extending out of the snap-in cavity 211 at all times, and the position of the mounting plate is fixed by the abutment action between the snap-in block 212 and the positioning block.

[0029] A first pulling ring 222 is provided at one end of the inner connecting rod 22, and a second pulling ring 217 is rotatably provided at one end of the outer connecting rod 21. When disassembly is required, the first pulling ring 222 and the second pulling ring 217 are used to perform the operation.

[0030] An input copper bar is provided on the bakelite board 13, and the input copper bar is used to install electrical components. Various electrical components can be installed on the input copper bar.

[0031] Insulators 121 are provided on the upper and lower sides of the lower mounting plate 12 to improve the insulation of the equipment and prevent safety problems caused by electrical conduction.

[0032] An output copper busbar 122 for forming an electrical connection with the electrical components on the input copper busbar is provided on the lower mounting plate 12 .

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

[0034] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A two-side power conversion device, characterized in that: The invention comprises a box body, wherein an upper mounting plate and a lower mounting plate are arranged inside the box body, a bakelite board is arranged between the upper mounting plate and the lower mounting plate, fixing holes are arranged on the upper mounting plate and the lower mounting plate, upper and lower ends of the bakelite board are respectively fixedly connected with the upper mounting plate and the lower mounting plate through fixing components, the fixing components comprise a fixing rod, the fixing rod comprises an outer connecting rod and an inner connecting rod sleeved in the outer connecting rod, a clamping cavity is arranged on the upper and lower sides of the outer connecting rod, a clamping block extending from the outer connecting rod is arranged in the clamping cavity, the outer wall of the clamping block is clamped with the inner wall of the fixing hole so that the fixing components are respectively fixedly connected with the upper mounting plate and the lower mounting plate.

2. The two-side power conversion device according to claim 1, characterized in that: A fixing cavity is arranged in the fixing hole, and the outer wall of the clamping block is clamped with the inner wall of the fixing cavity.

3. The two-side power conversion device according to claim 1, characterized in that: A sliding sleeve is disposed on the fixed sleeve on the inner connecting rod, a fixing block is disposed at the bottom of the clamping block, and the sliding sleeve and the fixing block are connected via a connecting rod.

4. The two-side power conversion device according to claim 3, characterized in that: A mounting block is provided at the bottom of the clamping cavity, and limiting blocks are provided at the bottoms of both sides of the clamping block. The limiting blocks are clamped with the clamping cavity, and a reset spring is connected between the mounting block and the limiting blocks.

5. The two-side power conversion device according to claim 3, characterized in that: A first pulling ring is provided at one end of the inner connecting rod, and a second pulling ring is rotatably provided at one end of the outer connecting rod.

6. The two-side power conversion device according to claim 1, characterized in that: An input copper busbar is arranged on the bakelite board, and the input copper busbar is used for installing electrical components.

7. The two-side power conversion device according to claim 1, characterized in that: Insulators are arranged on the upper and lower sides of the lower mounting plate.

8. The two-side power conversion device according to claim 7, characterized in that: The lower mounting plate is provided with an output copper busbar for forming an electrical connection with the electrical components on the input copper busbar.

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