CN216649513U

CN216649513U - Frequency converter of PCB pneumatic milling machine

Info

Publication number: CN216649513U
Application number: CN202123391293.5U
Authority: CN
Inventors: 宁永平; 莫先鹏; 王富宇
Original assignee: Jiangmen Jianghai Haowei Electronic Technology Co ltd
Current assignee: Jiangmen Jianghai Haowei Electronic Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-31
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a frequency converter of a PCB pneumatic milling machine, which relates to the technical field of machine tools and solves the problem that the prior frequency converter of the PCB pneumatic milling machine has poor heat dissipation effect in the use process.

Description

Frequency converter of PCB pneumatic milling machine

Technical Field

The utility model relates to the technical field of machine tools, in particular to a frequency converter of a PCB pneumatic milling machine.

Background

The frequency converter is an electric control device which applies a frequency conversion technology and a microelectronic technology and controls an alternating current motor by changing the frequency mode of a working power supply of the motor. The frequency converter mainly comprises a rectifying unit (alternating current to direct current), a filtering unit, an inverting unit (direct current to alternating current), a braking unit, a driving unit, a detection unit micro-processing unit and the like. The frequency converter adjusts the voltage and frequency of an output power supply by switching on and off an internal IGBT, provides the required power supply voltage according to the actual requirement of the motor, and further achieves the purposes of energy saving and speed regulation.

The existing frequency converter of the PCB pneumatic milling machine is poor in heat dissipation effect in the using process, and therefore the frequency converter of the PCB pneumatic milling machine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a frequency converter of a PCB pneumatic milling machine with good heat dissipation effect, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model discloses a frequency converter of a PCB pneumatic milling machine, relates to the technical field of machine tools, and solves the problem that the heat dissipation effect is not good when the existing frequency converter of the PCB pneumatic milling machine is used.

Preferably, heat radiation structure includes the fan, and the casing top is equipped with the installing port, and the fan is fixed in the installing port, and the fan passes through controller control and rotates for dispel the heat to the inside components and parts of casing.

Preferably, the auxiliary structure includes the connecting cylinder, be equipped with the pivot on the fan main shaft, the pivot runs through the connecting cylinder top and is connected with the connecting cylinder rotation, be equipped with the import pipe on the connecting cylinder, the import pipe is equipped with two, the symmetric distribution is on the connecting cylinder, the one end that the connecting cylinder was kept away from to the import pipe is equipped with the liquid reserve tank, the liquid reserve tank is fixed at the casing top, the connecting cylinder bottom is equipped with the outlet pipe, the outlet pipe is equipped with a plurality ofly, evenly distributed is in the connecting cylinder bottom, the one end that the connecting cylinder was kept away from to the outlet pipe is equipped with the connecting pipe, be equipped with fixed pipe on the connecting pipe, the fixed pipe is equipped with a plurality ofly, the symmetric distribution is in the connecting cylinder both sides, the one end that the connecting pipe was kept away from to the fixed pipe runs through the casing fixed with the liquid reserve tank, be equipped with the driving piece in the connecting cylinder, a coolant liquid flow for reducing the temperature of the wind that the fan insufflated, and the radiating efficiency is improved.

Preferably, the driving part comprises a helical blade, the helical blade is fixed on the rotating shaft, the outer side of the helical blade is rotatably connected with the inner side of the connecting cylinder and used for driving cooling liquid inside the connecting cylinder to flow, and therefore the heat dissipation efficiency is improved.

Preferably, the outlet pipe is netted the distribution between a plurality of connecting pipes, communicates between the outlet pipe, and all communicates with the connecting pipe, increases the area of contact of coolant liquid and casing internal air, improves the radiating efficiency.

Preferably, the bottom of the shell is provided with a through hole, so that the fluidity of air in the shell is increased.

Preferably, a filter screen is arranged on the outer side of the mounting opening and used for preventing sundries from falling into the mounting opening.

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

the cooling device comprises a shell, a fan, a connecting cylinder, a heat dissipation structure, a mesh outlet pipe structure, a cooling liquid inlet pipe, a cooling liquid outlet pipe, a fan, a spiral blade, a connecting cylinder and a fan, wherein the fan is arranged in the shell, the spiral blade is arranged in the fan, the fan is arranged in the shell, the shell is arranged in the shell, the spiral blade is arranged in the shell, the spiral blade, the shell, the cooling liquid is arranged on the shell, the shell is arranged, the shell, and the shell, and the shell, and the shell, and the shell, the shell.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the housing according to the present invention;

FIG. 3 is a schematic view of a heat dissipation structure of the present invention;

FIG. 4 is a schematic view of the driving member of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 2;

fig. 6 is an enlarged view of fig. 3 at B.

In the figure: 1-a shell; 2-closing the plate; 3-a controller; 4-a display screen; 5-control buttons; 6-a heat dissipation structure; 7-an auxiliary structure; 8-a fan; 9-mounting port; 10-a connecting cylinder; 11-a rotating shaft; 12-an inlet tube; 13-a liquid storage tank; 14-an outlet pipe; 15-connecting pipe; 16-a fixed tube; 17-a drive member; 18-a helical blade; 19-a through hole; 20-a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Please refer to fig. 1-6, the illustrated frequency converter of the PCB pneumatic milling machine includes a housing 1, a heat dissipation structure 6 and an auxiliary structure 7, a sealing plate 2 is disposed on the housing 1, a controller 3 is disposed in the housing 1, a display screen 4 is disposed on the sealing plate 2, a control button 5 is disposed on the sealing plate 2, the heat dissipation structure 6 is fixed in the housing 1, and is used for dissipating heat from the inside of the housing 1, the auxiliary structure 7 is fixed in the housing 1 and is used for dissipating heat from the inside of the housing 1 in cooperation with the heat dissipation structure 6, and the heat dissipation structure 6 is disposed to dissipate heat from components inside the housing 1, and through the auxiliary structure 7, the heat dissipation effect of the heat dissipation structure 6 on the inside of the housing 1 can be improved.

The heat dissipation structure 6 comprises a fan 8, a mounting opening 9 is formed in the top of the shell 1, the fan 8 is fixed in the mounting opening 9, and the fan 8 is controlled to rotate through the controller 3 and used for dissipating heat of components inside the shell 1.

The bottom of the shell 1 is provided with a through hole 19, which increases the fluidity of the air in the shell 1.

A filter screen 20 is arranged outside the mounting opening 9 and used for preventing sundries from falling into the mounting opening 9.

When the frequency converter works, the fan is driven to rotate, and air is blown and exchanged inside the shell, so that components inside the shell are cooled.

Example 2

Referring to fig. 2 to 6, the present embodiment further illustrates example 1: the auxiliary structure 7 comprises a connecting cylinder 10, a spindle 11 is arranged on a main shaft of the fan 8, the spindle 11 penetrates through the top of the connecting cylinder 10 and is rotatably connected with the connecting cylinder 10, an inlet pipe 12 is arranged on the connecting cylinder 10, the two inlet pipes 12 are symmetrically distributed on the connecting cylinder 10, a liquid storage tank 13 is arranged at one end, away from the connecting cylinder 10, of each inlet pipe 12, the liquid storage tank 13 is fixed at the top of the shell 1, an outlet pipe 1414 is arranged at the bottom of the connecting cylinder 10, a plurality of outlet pipes 14 are uniformly distributed at the bottom of the connecting cylinder 10, a connecting pipe 15 is arranged at one end, away from the connecting cylinder 10, of each outlet pipe 14, a plurality of fixing pipes 16 are arranged on the connecting pipe 15, the fixing pipes 16 are symmetrically distributed at two sides of the connecting cylinder 10, one end, away from the connecting pipe 15, of each fixing pipe 16 penetrates through the shell 1 and is fixed with the liquid storage tank 13, a driving part 17 is arranged in the connecting cylinder 10 and is used for driving the cooling liquid in the connecting cylinder 10 to flow and reducing the temperature of the air blown by the fan 8, the heat dissipation efficiency is improved.

The outlet pipes 14 are distributed among the plurality of connecting pipes 15 in a net shape, the outlet pipes 14 are communicated with each other and are communicated with the connecting pipes 15, the contact area between the cooling liquid and the air in the shell 1 is increased, and the heat dissipation efficiency is improved.

The coolant liquid in the liquid reserve tank 13 passes through in the import pipe 12 gets into connecting cylinder 10, then gets into netted outlet pipe 14 in, then collects in connecting pipe 10, gets back to liquid reserve tank 13 in through fixed pipe 16, when fan 8 bloies to casing 1, hot-blast through netted outlet pipe 14 temperature can reduce to reduce the temperature of the wind that fan 8 sent into, improve the radiating effect.

Example 3

Referring to fig. 2 to 6, this embodiment further illustrates example 2: the auxiliary structure 7 comprises a connecting cylinder 10, a spindle 11 is arranged on a main shaft of the fan 8, the spindle 11 penetrates through the top of the connecting cylinder 10 and is rotatably connected with the connecting cylinder 10, an inlet pipe 12 is arranged on the connecting cylinder 10, the two inlet pipes 12 are symmetrically distributed on the connecting cylinder 10, a liquid storage tank 13 is arranged at one end, away from the connecting cylinder 10, of each inlet pipe 12, the liquid storage tank 13 is fixed at the top of the shell 1, an outlet pipe 1414 is arranged at the bottom of the connecting cylinder 10, a plurality of outlet pipes 14 are uniformly distributed at the bottom of the connecting cylinder 10, a connecting pipe 15 is arranged at one end, away from the connecting cylinder 10, of each outlet pipe 14, a plurality of fixing pipes 16 are arranged on the connecting pipe 15, the fixing pipes 16 are symmetrically distributed at two sides of the connecting cylinder 10, one end, away from the connecting pipe 15, of each fixing pipe 16 penetrates through the shell 1 and is fixed with the liquid storage tank 13, a driving part 17 is arranged in the connecting cylinder 10 and is used for driving the cooling liquid in the connecting cylinder 10 to flow and reducing the temperature of the air blown by the fan 8, the heat dissipation efficiency is improved.

The driving part 17 comprises a helical blade 18, the helical blade 18 is fixed on the rotating shaft 11, and the outer side of the helical blade 18 is rotatably connected with the inner side of the connecting cylinder 10 and is used for driving the cooling liquid inside the connecting cylinder 10 to flow, so that the heat dissipation efficiency is improved.

When the fan 8 rotates, the rotating shaft 11 is driven to rotate, so that the helical blades 18 are driven to rotate in the connecting cylinder 10, the cooling liquid in the connecting cylinder 10 is pushed into the outlet pipe 14, the cooling liquid in the inlet pipe 14 is driven to enter the connecting cylinder 10, the flowing of the cooling liquid is accelerated, and the heat dissipation efficiency is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. A frequency converter of a PCB pneumatic milling machine, comprising:

the device comprises a shell (1), wherein a sealing plate (2) is arranged on the shell (1), a controller (3) is arranged in the shell (1), a display screen (4) is arranged on the sealing plate (2), and a control button (5) is arranged on the sealing plate (2);

it is characterized by also comprising:

the heat dissipation structure (6) is fixed in the shell (1) and used for dissipating heat inside the shell (1);

the auxiliary structure (7) is fixed in the shell (1) and used for being matched with the heat dissipation structure (6) to dissipate heat inside the shell (1).

2. The frequency converter of the PCB pneumatic milling machine according to claim 1, characterized in that: the heat dissipation structure (6) comprises a fan (8), a mounting opening (9) is formed in the top of the shell (1), the fan (8) is fixed in the mounting opening (9), and the fan (8) is controlled to rotate through the controller (3).

3. The frequency converter of the PCB pneumatic milling machine according to claim 2, characterized in that: the auxiliary structure (7) comprises a connecting cylinder (10), a rotating shaft (11) is arranged on a main shaft of the fan (8), the rotating shaft (11) penetrates through the top of the connecting cylinder (10) and is rotationally connected with the connecting cylinder (10), an inlet pipe (12) is arranged on the connecting cylinder (10), the inlet pipe (12) is provided with two inlet pipes, the inlet pipes are symmetrically distributed on the connecting cylinder (10), a liquid storage box (13) is arranged at one end, far away from the connecting cylinder (10), of the inlet pipe (12), the liquid storage box (13) is fixed at the top of the shell (1), outlet pipes (14) are arranged at the bottom of the connecting cylinder (10), the outlet pipes (14) are arranged in a plurality and are uniformly distributed at the bottom of the connecting cylinder (10), a connecting pipe (15) is arranged at one end, far away from the connecting cylinder (10), of the outlet pipe (14), a fixing pipe (16) is arranged on the connecting pipe (15), fixed pipe (16) are equipped with a plurality ofly, and the symmetric distribution is in connecting cylinder (10) both sides, fixed pipe (16) are kept away from the one end of connecting pipe (15) is run through casing (1) with liquid reserve tank (13) are fixed, be equipped with driving piece (17) in connecting cylinder (10), be used for the drive coolant liquid in connecting cylinder (10) flows.

4. The frequency converter of the PCB pneumatic milling machine according to claim 3, wherein: the driving piece (17) comprises a spiral blade (18), the spiral blade (18) is fixed on the rotating shaft (11), and the outer side of the spiral blade (18) is rotatably connected with the inner side of the connecting cylinder (10).

5. The frequency converter of the PCB pneumatic milling machine according to claim 3, wherein: the outlet pipes (14) are distributed among the connecting pipes (15) in a net shape, and the outlet pipes (14) are communicated with each other and are communicated with the connecting pipes (15).

6. The frequency converter of the PCB pneumatic milling machine according to claim 1, characterized in that: the bottom of the shell (1) is provided with a through hole (19).

7. The frequency converter of the PCB pneumatic milling machine according to claim 2, characterized in that: and a filter screen (20) is arranged on the outer side of the mounting opening (9).