Multi-output boost DC-DC converter

Abstract

A cover body is detachably connected to the upper portion of a mainboard, a base is detachably connected to the lower portion of the mainboard, a mounting groove is formed in the surface of the base, a limiting plate is detachably connected to the interior of the mounting groove and used for connecting the base and the mainboard, and a heat dissipation mechanism is detachably connected to the limiting plate. The heat dissipation set is installed in a sliding mode so that a worker can directly and conveniently assemble the heat dissipation set, the overall structure is of a convenient and fast disassembly structure, and the heat dissipation set can be conveniently disassembled and cleaned away dust accumulated in the heat dissipation set or directly disassembled and replaced in the follow-up process; and the positioning columns and the right-angle notches are matched with each other, so that the assembling discrimination degree of the equipment can be improved, and accurate positioning and assembling can be achieved during installation.

Description

Technical Field

[0001] The utility model belongs to the technical field of converters, and in particular relates to a multi-output boost DC-DC converter. Background Art

[0002] A converter is an electrical device that converts electrical energy from one form to another. It works based on the law of electromagnetic induction and the law of conservation of energy, and is mainly composed of an iron core and two coils (primary coil and secondary coil). When AC passes through the primary coil, it generates a magnetic field that passes through the iron core and induces current in the secondary coil. The converter can change the size of voltage and current to achieve different forms of electrical energy conversion, such as converting AC to DC (rectification) or converting DC to AC (inversion).

[0003] When the existing converter is in use, the internal heat dissipation device will be covered with a lot of dust, which affects the heat dissipation effect and increases the workload of the converter. It is inconvenient for staff to disassemble and install the internal heat dissipation device, and the overall structure adopts a fixed integrated type, which undoubtedly increases the difficulty of equipment maintenance and replacement and cleaning of the heat dissipation device. Utility Model Content

[0004] The utility model aims to provide a multi-output boost DC-DC converter to solve the problems of disassembly and installation of heat sinks and overall structure assembly in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-output step-up DC-DC converter, comprising a mainboard, a cover body detachably connected to the upper part of the mainboard, a base detachably connected to the lower part of the mainboard, a mounting groove provided on the surface of the base, a limit plate detachably connected in the mounting groove, the limit plate being used to connect the base and the mainboard, and a heat dissipation mechanism detachably connected to the limit plate;

[0007] The heat dissipation mechanism comprises a U-shaped mounting block, a heat dissipation group and a spring. The two sides of the heat dissipation group are connected with the U-shaped mounting blocks through springs, and the U-shaped mounting blocks are slidably mounted on the outer side of the limiting plate.

[0008] Furthermore, right-angle notches are provided at the four corners of the mainboard, and positioning posts are provided at the four corners of the cover body, and the positioning posts and the right-angle notches cooperate with each other. The positioning posts and the right-angle notches cooperate with each other to improve the assembly identification of the device and enable accurate positioning and assembly during installation.

[0009] Furthermore, a latching tooth is provided on one side of the limit plate, and a positioning tooth is provided on the inner wall of the U-shaped mounting block, and the latching tooth and the positioning tooth cooperate with each other. The spring applies pressure to the U-shaped mounting block, so that the latching tooth and the positioning tooth bite each other and cannot produce displacement to form a self-locking function, thereby enhancing the installation stability of the heat dissipation group.

[0010] Furthermore, the surface of the base is symmetrically provided with ribs, which are on both sides of the U-shaped mounting block. The ribs can strengthen the restriction of the U-shaped mounting block, and the ribs are made of rubber material to adapt to slight deformation. The ribs provide side extrusion force to strengthen the fixed installation of the U-shaped mounting block.

[0011] Furthermore, heat collecting blocks are installed at both ends of the mainboard, the heat collecting blocks are installed between the base and the mainboard, and ventilation plates are provided at both ends of the cover. There are multiple heat collecting blocks, and gaps can be formed between each heat collecting block to increase convection heat dissipation, speed up heat dissipation, improve heat dissipation efficiency, and optimize heat dissipation performance.

[0012] Furthermore, the heat collecting block is made of heat-conducting metal, which absorbs heat energy to significantly reduce the temperature inside the device.

[0013] The technical solution of the utility model has the following beneficial effects:

[0014] 1. The cooling group adopts a sliding installation method, which can be directly convenient for the staff to assemble. The overall structure adopts a convenient disassembly structure, which is convenient for the subsequent disassembly of the cooling group to clean the dust accumulated in the cooling group or directly disassemble and replace the cooling group. The positioning column and the right-angle notch cooperate with each other to improve the assembly identification of the equipment and can accurately position and assemble during installation.

[0015] 2. The setting of the spring can generate thrust to make the U-shaped mounting block fit firmly on the limit plate. The spring applies pressure to the U-shaped mounting block, so that the latch teeth and the positioning teeth will bite each other and cannot produce displacement to form a self-locking function, thereby enhancing the installation stability of the heat dissipation group. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the split structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the assembly structure of the utility model.

[0021] Figure 5 It is a partial structural schematic diagram of the utility model.

[0022] Figure 6 For the utility model Figure 5 Schematic diagram of the cross-section structure.

[0023] Figure numerals: 10, cover; 11, base; 12, main board; 13, positioning column; 14, ventilation plate; 15, wiring port; 16, mounting groove; 17, limit plate; 18, U-shaped mounting block; 19, rib plate; 20, heat dissipation group; 21, spring; 22, latch tooth; 23, positioning tooth; 24, heat collecting block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] refer to Figure 1-Figure 6 A multi-output step-up DC-DC converter includes a mainboard 12, a cover 10 is detachably connected to the upper part of the mainboard 12, a base 11 is detachably connected to the lower part of the mainboard 12, a mounting groove 16 is provided on the surface of the base 11, a limit plate 17 is detachably connected in the mounting groove 16, the limit plate 17 is used to connect the base 11 and the mainboard 12, a heat dissipation mechanism is detachably connected to the limit plate 17, and a wiring port 15 is installed on the surface of the mainboard 12 for facilitating the converter to connect multiple lines;

[0027] In the above scheme, the installation of the DC-DC converter mainboard 12 is to first place the limit plate 17 into the installation slot 16. There are four installation slots 16 in total. The mainboard 12 is supported by installing four limit plates 17. Threaded holes are provided on the upper and lower parts of the limit plate 17. The mainboard 12 is stabilized between the base 11 and the mainboard 12 by installing nuts in the threaded holes; right-angled notches are provided at the four corners of the mainboard 12, and positioning columns 13 are provided at the four corners of the cover body 10. Bolt holes are provided on the positioning columns 13 and the base 11. The positioning columns 13 cooperate with the right-angled notches to improve the assembly identification of the device and enable accurate positioning and assembly during installation. Then, it is only necessary to fit the positioning columns 13 on the right-angled notches. The bolt holes on the positioning columns 13 and the base 11 will remain concentrically matched, and the cover body 10 and the base 11 are fixedly assembled by bolts.

[0028] Further references Figure 2-Figure 6 The heat dissipation mechanism includes a U-shaped mounting block 18, a heat dissipation group 20 and a spring 21. The heat dissipation group 20 is equipped with fan blades, and a motor is installed on the fan blades to drive the fan blades. The two sides of the heat dissipation group 20 are connected to the U-shaped mounting block 18 through the spring 21. The U-shaped mounting block 18 is slidably installed on the outer side of the limit plate 17.

[0029] In the above scheme: the setting of the limit plate 17 can be used to support the assembly base 11 and the main board 12, and at the same time it is convenient for the positioning and assembly of the heat dissipation mechanism. For the installation of the heat dissipation mechanism, it is only necessary to slide the U-shaped mounting block 18 on the outside of the limit plate 17, and the U-shaped mounting block 18 is wrapped around the outer periphery of the limit plate 17. The vibration generated when the fan blades inside the heat dissipation group 20 start to work will not cause the heat dissipation group 20 to deviate left and right. The heat dissipation group 20 adopts a sliding installation method, which can directly facilitate the assembly of the staff, and is also convenient for the subsequent disassembly of the heat dissipation group 20 to clean the dust accumulated in the heat dissipation group 20 or directly disassemble and replace the heat dissipation group 20. The setting of the spring 21 can generate a thrust to make the U-shaped mounting block 18 firmly fit on the limit plate 17. At the same time, the height of the heat dissipation group 20 is compatible with the distance between the base 11 and the main board 12. The base 11 and the main board 12 can also further limit the position of the heat dissipation group 20 to work stably inside the converter to prevent up and down deviations.

[0030] Further references Figure 6 , a latching tooth 22 is provided on one side of the limit plate 17, and a positioning tooth 23 is provided on the inner wall of the U-shaped mounting block 18, and the latching tooth 22 and the positioning tooth 23 cooperate with each other. When the U-shaped mounting block 18 is slidably installed, the U-shaped mounting block 18 is moved from top to bottom, and the positioning tooth 23 is squeezed outward by the latching tooth 22. At this time, the spring 21 is deformed, and the U-shaped mounting block 18 can be continuously displaced downward. When the U-shaped mounting block 18 is moved upward from bottom to bottom, the spring 21 applies pressure to the U-shaped mounting block 18, so that the latching tooth 22 and the positioning tooth 23 will bite each other and cannot be displaced to form a self-locking function, thereby enhancing the installation stability of the heat dissipation group 20. When the heat dissipation group 20 needs to be disassembled, the U-shaped mounting block 18 needs to be pushed to one side, and the spring 21 is deformed. The latching tooth 22 and the positioning tooth 23 are separated from each other before the heat dissipation group 20 can be removed. In addition, the setting of the spring 21 can also absorb the vibration energy during the operation of the fan blades, thereby improving the stability of the equipment.

[0031] Embodiment 2:

[0032] refer to Figure 5 The surface of the base 11 is symmetrically provided with ribs 19, and the ribs 19 are on both sides of the U-shaped mounting block 18. The ribs 19 can strengthen the restriction of the U-shaped mounting block 18, and the ribs 19 are made of rubber material and can adapt to slight deformation. The ribs 19 provide side extrusion force to strengthen the fixed installation of the U-shaped mounting block 18.

[0033] Furthermore, heat collecting blocks 24 are installed at both ends of the mainboard 12, and the heat collecting blocks 24 are installed between the base 11 and the mainboard 12. Ventilation plates 14 are provided at both ends of the cover 10; the heat collecting blocks 24 are made of heat-conducting metal, and the heat-conducting metal is made of copper. When the fan blades of the device are working, the hot air inside the converter device is blown out, and the hot air passes through the heat collecting blocks 24. The heat collecting blocks 24 absorb heat energy to greatly reduce the temperature inside the device. The internal hot air is sent out from the ventilation plates 14, and there are multiple heat collecting blocks 24. Gaps can be formed between each heat collecting block 24 to increase convection heat dissipation, speed up heat dissipation, improve heat dissipation efficiency, and optimize heat dissipation performance. The heat dissipation group 20 can be set at both ends of the base 11, one for air intake and one for air outlet, thereby forming a rapid exchange of internal hot air.

[0034] The specific implementation process of this embodiment is as follows:

[0035] First, place the limit plate 17 into the installation groove 16, and slide the U-shaped installation block 18 to the outside of the limit plate 17. The limit plate 17 is provided with threaded holes on the top and bottom. The main board 12 is stabilized between the base 11 and the main board 12 by installing nuts in the threaded holes. Then, just fit the positioning column 13 on the right-angle notch. The positioning column 13 and the bolt holes on the base 11 will maintain concentric fit, and then the cover body 10 and the base 11 are fixed and assembled by bolts.

[0036] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Various modifications or equivalent substitutions may be made to the present invention within the essence and protection scope of the present invention. Such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

[0037] In the description of the present utility model, it should be noted that the terms "inside", "front", "back", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the attached circles, or the directions or positional relationships in which the utility model product is usually placed when in use, and are only used to facilitate the description of the present utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, these terms indicating directions or positional relationships cannot be understood as limiting the present utility model.

[0038] In the description of the present invention, it is further explained that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, these terms can indicate a fixed connection, a detachable connection, or an integral connection between elements; they can also indicate a mechanical connection, an electrical connection; they can also indicate a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

Claims

1. A multi-output step-up DC-DC converter, comprising a main board (12), characterized in that: The upper part of the mainboard (12) is detachably connected to a cover body (10), the lower part of the mainboard (12) is detachably connected to a base (11), a mounting groove (16) is provided on the surface of the base (11), a limiting plate (17) is detachably connected in the mounting groove (16), the limiting plate (17) is used to connect the base (11) and the mainboard (12), and a heat dissipation mechanism is detachably connected to the limiting plate (17); The heat dissipation mechanism comprises a U-shaped mounting block (18), a heat dissipation group (20) and a spring (21); both sides of the heat dissipation group (20) are connected to the U-shaped mounting block (18) via the spring (21); and the U-shaped mounting block (18) is slidably mounted on the outside of the limiting plate (17).

2. A multi-output step-up DC-DC converter according to claim 1, characterized in that: The four corners of the main board (12) are provided with right-angled notches, and the four corners of the cover body (10) are provided with positioning columns (13), and the positioning columns (13) and the right-angled notches cooperate with each other.

3. The multi-output step-up DC-DC converter according to claim 2, characterized in that: A latching tooth (22) is provided on one side of the limiting plate (17), and a positioning tooth (23) is provided on the inner wall of the U-shaped mounting block (18), and the latching tooth (22) and the positioning tooth (23) cooperate with each other.

4. The multi-output step-up DC-DC converter according to claim 3, characterized in that: The surface of the base (11) is symmetrically provided with ribs (19), and the ribs (19) are located on both sides of the U-shaped mounting block (18).

5. The multi-output step-up DC-DC converter according to claim 1, characterized in that: Heat collecting blocks (24) are installed at both ends of the main board (12), and the heat collecting blocks (24) are installed between the base (11) and the main board (12). Ventilation plates (14) are provided at both ends of the cover body (10).

6. The multi-output step-up DC-DC converter according to claim 5, characterized in that: The heat collecting block (24) is made of heat-conducting metal.

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