CN220190659U

CN220190659U - LLC resonant power converter

Info

Publication number: CN220190659U
Application number: CN202321428911.5U
Authority: CN
Inventors: 焦烽
Original assignee: Chip Power Changzhou Co ltd
Current assignee: Chip Power Changzhou Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-15
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses an LLC resonant power converter which comprises a converter body, wherein two symmetrical mounting seats are fixedly connected to the converter body, a plurality of uniformly distributed mounting holes are formed in the mounting seats, a top plate is connected to the converter body in a sliding mode, a sliding block is fixedly connected to the top plate, the sliding block is connected with the converter body in a sliding mode, a fixing seat is fixedly connected to the converter body, a dustproof mechanism is arranged on the converter body, and a connecting mechanism is arranged on the top plate. According to the utility model, through the effect of the designed filter screen, a dustproof effect is achieved when the converter body ventilates and dissipates heat, dust can be effectively prevented from entering, the filter screen can be disassembled by pushing the push block, and the filter screen can be conveniently replaced or cleaned after the filter screen is used for a long time.

Description

LLC resonant power converter

Technical Field

The utility model relates to the technical field of power converters, in particular to an LLC resonant power converter.

Background

The power converter is also called an alternating current converter, is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, converts high-voltage current into low-voltage current, ensures low working efficiency of power utilization and protection parts due to overhigh or overlow voltage, and needs to be used in the using process of LLC resonant power supply.

The utility model patent with the patent grant publication number of CN214756047U discloses a power converter, belongs to the technical field of power equipment, and comprises: the main body mechanism is used for installing the converter; the switching mechanism is used for switching the high-voltage current into three different low-voltage currents and is convenient for wiring the output equipment; and the heat dissipation mechanism is used for dissipating heat generated during the working of the conversion mechanism. In the utility model, the voltages can be respectively converted into 12V, 5V and 3.3V by three micro transformers, one device can simultaneously supply three output voltages, when the power supply device is connected, positive and negative lines respectively pass through holes on the protective cover, then the lines pass through holes of two connectors on the corresponding voltage conversion heads, the lines are wound and fixed, then the protective cover is sleeved on the connectors, the operation is simple and convenient when the power supply device is connected, and the connector can be protected by the protective cover.

Among the above-mentioned prior art, in power converter's use, when ventilating and radiating through the louvre, the dust also is more easily got into the inside of converter, can influence the use of converter to the dismantlement of converter roof is also inconvenient enough, inconvenient maintenance of carrying out inner structure. Improvements are therefore needed.

Disclosure of Invention

The utility model aims to provide an LLC resonant power converter, which solves the problem that dust easily enters the converter during heat dissipation and also solves the problem that a top plate is inconvenient to detach.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an LLC resonance type power converter, includes the converter body, two symmetrical mount pads of fixedly connected with on the converter body, a plurality of evenly distributed's mounting hole has been seted up on the mount pad, sliding connection has the roof on the converter body, fixedly connected with slider on the roof, slider and converter body sliding connection, fixedly connected with fixing base on the converter body, be provided with dustproof mechanism on the converter body, be provided with coupling mechanism on the roof.

Preferably, the dustproof mechanism comprises a filter screen, a fixed rod, a first spring, an inserting block, a top block, a sliding rod and a pushing block, wherein the filter screen is connected to the fixed seat in a sliding manner, the filter screen is in contact with the converter body, the fixed rod is fixedly connected to the inside of the filter screen, the first spring is arranged on the outer side of the fixed rod, the inserting block is sleeved on the outer side of the fixed rod in a sliding manner, the inserting block is respectively connected with the filter screen and the fixed seat in a sliding manner, the inserting block is contacted with the top block, the top block is connected with the fixed seat in a sliding manner, and the sliding rod is fixedly connected to the top block and is connected with the fixed seat in a sliding manner. Through design dustproof mechanism, can prevent the entering of dust when dispelling the heat.

Preferably, one end of the first spring is fixedly connected with the filter screen, and the other end of the first spring is fixedly connected with the insert block. By designing the first spring such that the force of the first spring can act on the insert.

Preferably, a pushing block is fixedly connected to the sliding rod and is in sliding connection with the filter screen. The pushing block can drive the sliding rod to move through the design of the pushing block.

Preferably, the connecting mechanism comprises a limit rod, a pull block, a guide rod, a second spring and a guide block, wherein the limit rod is connected with the inside of the sliding block in a sliding manner, the limit rod is connected with the converter body in a sliding manner, the pull block is fixedly connected with the limit rod and is in contact with the converter body, the guide rod is fixedly connected with the pull block, the guide block is fixedly connected with the guide rod, the guide rod and the guide block are both connected with the converter body in a sliding manner, and the second spring is arranged on the outer side of the guide rod. Through design coupling mechanism, conveniently carry out the dismantlement of roof.

Preferably, one end of the second spring is fixedly connected with the guide block, and the other end of the second spring is fixedly connected with the converter body. By designing the second spring such that the force of the second spring can act on the guide block.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the effect of the designed filter screen, a dustproof effect is achieved when the converter body ventilates and dissipates heat, dust can be effectively prevented from entering, the filter screen can be disassembled by pushing the push block, and the filter screen can be conveniently replaced or cleaned after the filter screen is used for a long time.

2. According to the utility model, the sliding connection of the sliding block and the converter body is designed, so that the horizontal direction of the top plate can be limited, the vertical direction of the sliding block can be limited through the insertion connection of the limiting rod and the sliding block, the top plate and the converter body can be connected and fixed, the limiting rod can be conveniently separated from the sliding block, the top plate can be conveniently disassembled, and the overhaul and the maintenance of the internal structure can be conveniently carried out.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present utility model;

FIG. 3 is an enlarged view of the utility model at A of FIG. 2;

fig. 4 is an enlarged view of fig. 2B in accordance with the present utility model.

In the figure: 1. a transducer body; 2. a mounting base; 3. a mounting hole; 4. a top plate; 5. a slide block; 6. a fixing seat; 7. a dust-proof mechanism; 8. a connecting mechanism; 71. a filter screen; 72. a fixed rod; 73. a first spring; 74. inserting blocks; 75. a top block; 76. a slide bar; 77. a pushing block; 81. a limit rod; 82. pulling blocks; 83. a guide rod; 84. a second spring; 85. and a guide block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Please refer to fig. 1, 2, an LLC resonant power converter includes a converter body 1, two symmetrical mounting seats 2 are fixedly connected with the converter body 1, a plurality of evenly distributed mounting holes 3 are formed in the mounting seats 2, a top plate 4 is slidingly connected with the converter body 1, a sliding block 5 is fixedly connected with the top plate 4, the sliding block 5 is slidingly connected with the converter body 1, a fixing seat 6 is fixedly connected with the converter body 1, a dust prevention mechanism 7 is arranged on the converter body 1, and a connecting mechanism 8 is arranged on the top plate 4.

Referring to fig. 1, 2 and 3, the dustproof mechanism 7 includes a filter screen 71, a fixing rod 72, a first spring 73, an insert block 74, a top block 75, a sliding rod 76 and a push block 77, the filter screen 71 is slidably connected to the fixing seat 6, the filter screen 71 is in contact with the converter body 1, the fixing rod 72 is fixedly connected to the inside of the filter screen 71, the first spring 73 is arranged on the outer side of the fixing rod 72, one end of the first spring 73 is fixedly connected to the filter screen 71, the other end of the first spring 73 is fixedly connected to the insert block 74, the acting force of the first spring 73 can act on the insert block 74 through designing the first spring 73, the insert block 74 is slidably sleeved on the outer side of the fixing rod 72, the insert block 74 is slidably connected to the filter screen 71 and the fixing seat 6, the top block 75 is slidably connected to the fixing seat 6, the sliding rod 76 is slidably connected to the top block 75, the push block 77 is fixedly connected to the fixing seat 6, the push block 77 is slidably connected to the filter screen 71, the push block 77 is slidably connected to the outside, the push block 77 can drive the push block 76 to move through designing the push block 77, and the slide rod 7 can prevent dust from entering when the dustproof mechanism is designed.

Referring to fig. 1, 2 and 4, the connecting mechanism 8 includes a stop lever 81, a pull block 82, a guide rod 83, a second spring 84 and a guide block 85, wherein the stop lever 81 is slidably connected inside the slider 5, the stop lever 81 is slidably connected with the converter body 1, the pull block 82 is fixedly connected to the stop lever 81, the pull block 82 is in contact with the converter body 1, the guide rod 83 is fixedly connected to the pull block 82, the guide block 85 is fixedly connected to the guide rod 83, both the guide rod 83 and the guide block 85 are slidably connected with the converter body 1, the second spring 84 is arranged outside the guide rod 83, one end of the second spring 84 is fixedly connected with the guide block 85, the other end of the second spring 84 is fixedly connected with the converter body 1, and the second spring 84 is designed so that the acting force of the second spring 84 can act on the guide block 85, and the top plate 4 is conveniently detached by designing the connecting mechanism 8.

The specific implementation process of the utility model is as follows: during the use, play a dirt-proof effect when converter body 1 ventilation heat dissipation through the effect of filter screen 71, can effectively prevent the entering of dust, when need dismantle filter screen 71, the horizontal promotion ejector pad 77, ejector pad 77 drives slide bar 76 horizontal migration, slide bar 76 drives ejector pad 75 and removes, ejector pad 75 can drive insert 74 horizontal migration, insert 74 can slide along dead lever 72, insert 74 can extrude first spring 73 for insert 74 slides out from fixing base 6, can directly dismantle filter screen 71, convenient operation can be convenient after filter screen 71 uses for a long time the change or the clearance work of filter screen 71. When the top plate 4 needs to be disassembled, the pull block 82 is pulled horizontally, the pull block 82 drives the guide rod 83 to move horizontally, the guide rod 83 drives the guide block 85 to move, the guide block 85 can squeeze the second spring 84, and meanwhile, the pull block 82 drives the limit rod 81 to move horizontally, so that the limit rod 81 is separated from the slide block 5, then the top plate 4 can be disassembled, the top plate 4 can be disassembled conveniently, and the overhaul and maintenance of the internal structure can be carried out conveniently.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. LLC resonant power converter, including converter body (1), its characterized in that: two symmetrical mounting seats (2) are fixedly connected to the converter body (1), a plurality of evenly distributed mounting holes (3) are formed in the mounting seats (2), a top plate (4) is connected to the converter body (1) in a sliding mode, a sliding block (5) is fixedly connected to the top plate (4), the sliding block (5) is connected with the converter body (1) in a sliding mode, a fixing seat (6) is fixedly connected to the converter body (1), a dustproof mechanism (7) is arranged on the converter body (1), and a connecting mechanism (8) is arranged on the top plate (4).

2. An LLC resonant power converter in accordance with claim 1, characterized by: dustproof mechanism (7) are including filter screen (71), dead lever (72), first spring (73), inserted block (74), kicking block (75), slide bar (76), ejector pad (77), sliding connection has filter screen (71) on fixing base (6), filter screen (71) and converter body (1) contact, the inside fixedly connected with dead lever (72) of filter screen (71), the outside of dead lever (72) is provided with first spring (73), inserted block (74) have been cup jointed in the outside slip of dead lever (72), inserted block (74) respectively with filter screen (71) and fixing base (6) sliding connection, contact on inserted block (74) has kicking block (75), kicking block (75) and fixing base (6) sliding connection, fixedly connected with slide bar (76) on kicking block (75), slide bar (76) and fixing base (6) sliding connection.

3. An LLC resonant power converter in accordance with claim 2, characterized by: one end of the first spring (73) is fixedly connected with the filter screen (71), and the other end of the first spring (73) is fixedly connected with the insertion block (74).

4. An LLC resonant power converter in accordance with claim 2, characterized by: the sliding rod (76) is fixedly connected with a push block (77), and the push block (77) is in sliding connection with the filter screen (71).

5. An LLC resonant power converter in accordance with claim 1, characterized by: coupling mechanism (8) are including gag lever post (81), pull piece (82), guide arm (83), second spring (84), guide block (85), the inside sliding connection of slider (5) has gag lever post (81), gag lever post (81) and converter body (1) sliding connection, fixedly connected with pull piece (82) on gag lever post (81), pull piece (82) and converter body (1) contact, fixedly connected with guide arm (83) on pull piece (82), fixedly connected with guide block (85) on guide arm (83), guide arm (83) and guide block (85) all with converter body (1) sliding connection, the outside of guide arm (83) is provided with second spring (84).

6. An LLC resonant power converter in accordance with claim 5, wherein: one end of the second spring (84) is fixedly connected with the guide block (85), and the other end of the second spring (84) is fixedly connected with the converter body (1).