Heat dissipation structure of explosion-proof frequency converter

Abstract

The utility model discloses a heat dissipation structure of an explosion-proof frequency converter, comprising a housing 2, two ends of the outer side of the housing 2 are fixedly connected with supports, the interior of the housing 2 is provided with a frequency converter body, one end of the outer side of the housing 2 is provided with a mounting member in a penetrating manner, and the mounting position of the frequency converter body is corresponding to the mounting member. According to the utility model, the frequency converter is arranged in the explosion-proof cabinet with the same level requirements, heat dissipation modules such as an IGBT (Insulated Gate Bipolar Translator) and the like are concentrated on specific heat dissipation fins, heat dissipation of the frequency converter is realized through the explosion-proof fan, and the explosion-proof requirements of the frequency converter and the like are met; an anti-explosion function of a common frequency converter is realized on the basis of not needing a water source and an air source, so that the sealing performance and the anti-explosion performance of the whole anti-explosion cabinet are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of explosion -proof frequency converter, concretely is a kind of heat dissipation structure of explosion -proof frequency converter. BACKGROUND

[0002] Frequency converter is applied variable frequency technology and microelectronic technology, by changing motor working power supply frequency mode to control the power control equipment of alternating current motor. Frequency converter is mainly composed of rectifier, filter, inverter, brake unit, drive unit, detection unit microprocessing unit etc. Frequency converter adjusts the voltage and frequency of output power supply by the opening and closing of internal IGBT, according to the actual need of motor to provide the power supply voltage required by it, and then reaches the purpose of energy saving, speed regulation, in addition, frequency converter has many protection functions, such as overcurrent, overvoltage, overload protection etc., with the continuous improvement of industrial automation, frequency converter has been very widely used

[0003] Many electronic components are arranged inside frequency converter, a large amount of heat is generated inside during work, and electronic components are easily burnt out if heat is not dissipated under long-time operation, and the traditional frequency converter usually installs water source and gas source in the inside of shell to complete the heat dissipation of frequency converter, the former needs to lay circulating pipeline, and it is time-consuming and laborious and can increase its installation cost, and the latter needs to circulate in the inside of shell, so that the sealing property of entire explosion -proof cabinet is greatly reduced, and its safety is affected, therefore, we propose a kind of heat dissipation structure of explosion -proof frequency converter to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of heat dissipation structure of explosion -proof frequency converter, solve the problem that frequency converter in prior art is usually installed water source and gas source in the inside of shell to complete the heat dissipation of frequency converter, both ways exist certain hidden danger.

[0005] To achieve the above object, provide a kind of heat dissipation structure of explosion -proof frequency converter, including shell two, the outer side both ends of shell two are fixedly connected with support, the inside of shell two is installed with frequency converter body, the outer side one end of shell two is penetrated and is provided with mounting piece, the installation position of frequency converter body corresponds with mounting piece, and the side of frequency converter body close to mounting piece is provided with heating element;

[0006] The outer end of mounting piece is fixedly connected with fin, and air scoop is installed below the position of fin, and air scoop is fixedly connected on shell two, and explosion -proof fan is installed below the air scoop.

[0007] According to the heat dissipation structure of explosion -proof frequency converter, the other end of shell two is provided with shell one, and a plurality of positioning bolts are screw-connected at the connecting place of shell two and shell one.

[0008] According to the heat dissipation structure of the explosion-proof frequency converter, the heat generating element is arranged through the inside of the mounting piece.

[0009] According to the heat dissipation structure of the explosion-proof frequency converter, the mounting piece is mounted on the shell two in a bolt locking mode.

[0010] According to the heat dissipation structure of the explosion-proof frequency converter, the bottom of the support is provided with a triangular support structure to support the shell two.

[0011] According to the heat dissipation structure of the explosion-proof frequency converter, the outer end of the shell one is provided with an emergency stop button, the lower side of the emergency stop button is provided with an explosion-proof shutdown button, and the lower side of the explosion-proof shutdown button is provided with an explosion-proof start button.

[0012] Compared with the prior art, the heat dissipation structure of the explosion-proof frequency converter has the beneficial effects that:

[0013] 1、The explosion-proof frequency converter is arranged in the explosion-proof cabinet of the same level, the heat dissipation modules such as IGBT are concentrated on specific heat dissipation fins, the explosion-proof fan is used to realize heat dissipation of the frequency converter, the explosion-proof function of the ordinary frequency converter is realized on the basis that no water source and gas source are needed, the sealing property and the explosion-proof performance of the entire explosion-proof cabinet are improved.

[0014] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. DETAILED DESCRIPTION

[0015] The utility model will be further explained in combination with the drawings and embodiments;

[0016] Figure 1 It is the rear view of the heat dissipation structure of the explosion-proof frequency converter of the utility model;

[0017] Figure 2 It is the sectional view of the heat dissipation structure of the explosion-proof frequency converter of the utility model;

[0018] Figure 3 It is the heat dissipation assembly schematic view of the heat dissipation structure of the explosion-proof frequency converter of the utility model;

[0019] Figure 4 It is the front view of the heat dissipation structure of the explosion-proof frequency converter of the utility model.

[0020] In the drawing: 1, explosion-proof start button; 2, explosion-proof fan; 3, air baffle; 4, heat dissipation fin; 5, mounting piece; 6, positioning bolt; 7, shell one; 8, shell two; 9, support; 10, frequency converter body; 11, heat generating element; 12, emergency stop button; 13, explosion-proof shutdown button. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a heat dissipation structure of explosion-proof frequency converter, including shell two 8, the outer side both ends of shell two 8 are fixedly connected with support 9, the entire explosion-proof cabinet can be stably supported by support 9, frequency converter body 10 is installed in the inside of shell two 8, the outer side one end of shell two 8 is provided with mounting piece 5, the mounting position of frequency converter body 10 and mounting piece 5 correspond to each other, and frequency converter body 10 is provided with heating element 11 on the side close to mounting piece 5, mounting piece 5 is bolted on the outer end of shell two 8, and the fin 4 in the inside of mounting piece 5 can be attached with the heating element 11 of frequency converter body 10, and the effect of attaching heat conduction is completed;

[0023] The outer end of mounting piece 5 is fixedly connected with fin 4, air baffle 3 is installed below fin 4, and air baffle 3 is fixedly connected on shell two 8, explosion-proof fan 2 is installed in the lower side of air baffle 3, and frequency converter body 10 in the inside of shell two 8 generates heat when being used, and the heating element in frequency converter mainly includes power semiconductor device (such as IGBT, MOSFET, diode etc.), transformer, inductor, these heating elements 11 are installed on fin 4, to effectively dissipate heat by using the excellent heat conductivity and heat dissipation performance of fin 4, to keep element in the safe working temperature range, and in order to improve heat dissipation performance, explosion-proof fan 2 is started to quickly take away the heat on fin 4, so that the effect of rapid heat dissipation can be achieved, to realize the explosion-proof function of ordinary frequency converter based on not needing water source and gas source, to improve the sealing property and explosion-proof performance of the entire explosion-proof cabinet;

[0024] The other end of shell two 8 is provided with shell one 7, a plurality of positioning bolts 6 are threadedly connected at the connecting place of shell two 8 and shell one 7, and explosion-proof cabinet is formed between shell one 7 and shell two 8 by locking between positioning bolts 6.

[0025] Heating element 11 is arranged in the inside of mounting piece 5, mounting piece 5 is bolted on shell two 8, the bottom of support 9 adopts triangular support structure to support shell two 8, and the support stability of support 9 can be improved by triangular support structure.

[0026] The outer end of the shell one 7 is provided with an emergency stop button 12, the lower side of the emergency stop button 12 is correspondingly provided with an explosion-proof shutdown button 13, the lower side of the explosion-proof shutdown button 13 is correspondingly provided with an explosion-proof start button 1, the whole explosion-proof cabinet can be controlled through the emergency stop button 12, the explosion-proof start button 1 and the explosion-proof shutdown button 13, which is convenient for the use of the staff.

[0027] Working principle: when installing, the connecting ends of the shell one 7 and the shell two 8 are corresponded, the positioning bolt 6 is used to lock them, so as to ensure the connecting effect and sealing effect between the two shells, and the internal frequency converter body 10 can be wired with the electronic elements of the whole equipment during the installation process, so as to ensure the power operation, the frequency converter body 10 inside the shell two 8 will generate heat during use, the heat generating elements in the frequency converter mainly include power semiconductor devices (such as IGBT, MOSFET, diode, etc.), transformers, inductors, these heat generating elements 11 are installed on the heat sink 4, so as to effectively dissipate heat by using the excellent heat conductivity and heat dissipation performance of the heat sink 4, so as to keep the elements in the safe working temperature range, in order to improve the heat dissipation performance, starting the explosion-proof fan 2 can quickly take away the heat on the heat sink 4, so as to achieve the effect of rapid heat dissipation, realizing the explosion-proof function of the ordinary frequency converter on the basis of not needing water source and gas source, so as to improve the sealing performance and explosion-proof performance of the whole explosion-proof cabinet.

[0028] The above has made a detailed description of the embodiments of the utility model in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A heat dissipation structure of an explosion-proof frequency converter, comprising a shell (2), characterized in that, The outer side of the shell two (8) is fixedly connected with a support (9), the inside of the shell two (8) is mounted with a frequency converter body (10), one end of the outer side of the shell two (8) is provided with a mounting piece (5), the mounting position of the frequency converter body (10) corresponds to the mounting piece (5), and the side of the frequency converter body (10) close to the mounting piece (5) is provided with a heating element (11); The outer end of the mounting piece (5) is fixedly connected with a cooling fin (4), a wind deflector (3) is mounted below the cooling fin (4), and the wind deflector (3) is fixedly connected to the shell two (8); an explosion-proof fan (2) is mounted below the wind deflector (3).

2. The heat dissipation structure of the explosion-proof frequency converter according to claim 1, characterized in that: The other end of the shell two (8) is provided with a shell one (7), and a plurality of positioning bolts (6) are threadedly connected at the connection between the shell two (8) and the shell one (7).

3. The heat dissipation structure of the explosion-proof frequency converter according to claim 1, characterized in that: The heating element (11) is provided in the inside of the mounting piece (5).

4. The heat dissipation structure of the explosion-proof frequency converter according to claim 1, characterized in that: The mounting piece (5) is mounted on the shell two (8) by bolt locking.

5. The heat dissipation structure of the explosion-proof frequency converter according to claim 1, characterized in that: The bottom of the support (9) adopts a triangular support structure to support the shell two (8).

6. The heat dissipation structure of the explosion-proof frequency converter according to claim 2, characterized in that: The outer end of the shell one (7) is provided with an emergency stop button (12), the lower side of the emergency stop button (12) is provided with an explosion-proof shutdown button (13), and the lower side of the explosion-proof shutdown button (13) is provided with an explosion-proof start button (1).

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