CN212982989U

CN212982989U - Power transformation cabinet for induction quenching equipment

Info

Publication number: CN212982989U
Application number: CN202021747271.0U
Authority: CN
Inventors: 李宇
Original assignee: Dongguan Guangzhiyuan Electronic Technology Co ltd
Current assignee: Dongguan Guangzhiyuan Electronic Technology Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-04-16
Anticipated expiration: 2030-08-20

Abstract

The utility model provides a transformer cabinet for induction hardening equipment, include the cabinet body and install rectifier module and contactor module in the cabinet body, still including installing at the internal filter capacitance module of cabinet, resonance electric capacity and output module, a plurality of metal film electric capacity has in the filter capacitance module, a plurality of IGBT subassembly and stromatolite are female to be arranged, rectifier module and contactor module respectively with the female upper end electrical connection who arranges of stromatolite, a plurality of metal film electric capacity and the female middle part electrical connection that arranges of stromatolite, the female left and right sides electrical connection who arranges of a plurality of IGBT subassembly and stromatolite, resonance electric capacity and the female lower extreme electrical connection who arranges of stromatolite, the female row of stromatolite is arranged and output module electrical connection, its advantage lies in: the power supply device not only can reduce the power consumption in the power transformation cabinet, but also can effectively protect electrical elements in the power transformation cabinet.

Description

Power transformation cabinet for induction quenching equipment

Technical Field

The utility model relates to an induction hardening heating equipment field, in particular to a transformer cabinet for induction hardening equipment.

Background

Electromagnetic induction heating, or induction heating for short, is one method of heating conductive materials such as metallic materials. The quenching device is mainly used for metal hot working, heat treatment, welding and melting, when a workpiece is quenched by utilizing induction heating, the interior of the heated material generates current, the heating purpose is achieved by means of the energy of eddy currents, general induction quenching equipment is required to be communicated with a power transformation cabinet, the power transformation cabinet firstly carries out frequency conversion and voltage transformation on commercial power and then provides the commercial power for the quenching equipment, the power transformation cabinet for the quenching equipment is internally connected with the power transformation cabinet for the quenching equipment at present, however, the quenching equipment uses high-frequency current, if the power transformation cabinet is connected by adopting a lead, on one hand, the electric energy loss is very large, on the other hand, the peak voltage generated when the power transformation cabinet is switched on and off is very high, and electrical elements in the power transformation cabinet, especially IGBT elements are easily damaged, therefore, the power transformation cabinet suitable for the induction quenching equipment is required to be, the power supply device not only can reduce the power consumption in the power transformation cabinet, but also can effectively protect electrical elements in the power transformation cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transformer cabinet for induction hardening equipment in order to solve the problem mentioned in the background art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a transformer cabinet for induction hardening equipment, include the cabinet body and install rectifier module and contactor module in the cabinet body, still including installing the internal filter capacitor module of cabinet, resonance capacitor and output module, a plurality of metal film electric capacity has in the filter capacitor module, female the arranging of a plurality of IGBT subassembly and stromatolite, rectifier module and contactor module are female the upper end electrical connection who arranges with the stromatolite respectively, female middle part electrical connection of arranging of a plurality of metal film electric capacity and stromatolite, the female left and right sides electrical connection who arranges of a plurality of IGBT subassembly and stromatolite, female lower extreme electrical connection who arranges of resonance capacitor and stromatolite, female arranging and output module electrical connection of stromatolite.

To the further description of the present invention: the filter capacitor module further comprises a plurality of radiators, and the radiators are arranged on one side of the IGBT assembly.

To the further description of the present invention: the IGBT assemblies and the radiator are respectively arranged in two groups at the left side and the right side of the laminated busbar.

To the further description of the present invention: the filter capacitor module further comprises a plurality of absorption capacitors, and the absorption capacitors are connected with the IGBT assemblies in parallel.

To the further description of the present invention: the resonant capacitors are arranged in two groups.

To the further description of the present invention: the device also comprises a cooling module, wherein the cooling module is connected with the resonance capacitor through a water pipe.

To the further description of the present invention: the rectifying module, the contactor module, the resonant capacitor and the output module are electrically connected with each other through the copper plate and the laminated busbar respectively.

To the further description of the present invention: the distance between adjacent metal film capacitors is not more than 5 cm.

To the further description of the present invention: the contactor further comprises a protection resistor, and the protection resistor is connected with the contactor module in parallel.

To the further description of the present invention: the cabinet also comprises a heat exhausting fan which is arranged on one side of the cabinet body.

The utility model has the advantages that: through connecting electrical components such as metal film capacitor, IGBT subassembly compactly on female arranging of stromatolite, female cross-sectional area of arranging of stromatolite is big and has shortened the distance between the component, on the one hand, has reduceed the loss of current power and the inside degree of generating heat of transformer cabinet, and on the other hand has reduced the spike voltage that produces when the power is switched on and off to the transformer cabinet, prevents that spike voltage is too big to cause the breakdown to electrical components, has protected effectively such as important electrical components such as IGBT component.

Drawings

FIG. 1 is an overall structure of the present invention;

fig. 2 is an exploded view of the filter capacitor module of the present invention;

description of reference numerals:

1. a cabinet body; 2. a rectification module; 3. a contactor module; 4. a filter capacitor module; 41. a metal thin film capacitor; 42. an IGBT assembly; 43. a laminated busbar; 44. a heat sink; 45. an absorption capacitance; 5. a resonant capacitor; 6. an output module; 7. a cooling module; 8. a protection resistor; 9. a heat exhausting fan.

Detailed Description

The invention is further explained below with reference to the drawings:

as shown in fig. 1-2: the utility model provides a transformer cabinet for induction hardening equipment, including the cabinet body 1 and install rectifier module 2 and contactor module 3 at the internal 1 of cabinet, still including installing filter capacitor module 4 at the internal 1 of cabinet, resonance capacitor 5 and output module 6, a plurality of metal film electric capacity 41 has on the filter capacitor module 4, female 43 of arranging of a plurality of IGBT subassembly 42 and stromatolite, rectifier module 2 and contactor module 3 respectively with the female upper end electrical connection who arranges 43 of stromatolite, female 43 middle part electrical connection of arranging of a plurality of metal film electric capacity 41 and stromatolite, the female left and right sides electrical connection who arranges 43 of a plurality of IGBT subassembly 42 and stromatolite, resonance capacitor 5 and the female lower extreme electrical connection who arranges 43 of stromatolite, female 43 of arranging of stromatolite and 6 electrical connection of output module, 6 outer ends and induction hardening equipment are connected.

Filter capacitor module 4 still includes a plurality of radiator 44 and a plurality of absorption capacitor 45, radiator 44 sets up in IGBT subassembly 42 one side, be used for giving the heat dissipation of IGBT subassembly 42, prevent that the IGBT high temperature from damaging, improve IGBT subassembly 42's life, absorption capacitor 45 and IGBT subassembly 42 are parallelly connected, share the electric current on the IGBT subassembly 42, prevent that spike current from excessively damaging IGBT subassembly 42, in this design, IGBT subassembly 42, radiator 44 and absorption capacitor 45 respectively set up two sets ofly in the left and right sides of female row 43 of stromatolite.

The utility model discloses still include cooling module 7, cooling module 7 leads to pipe and resonance electric capacity 5 is connected, and cooling module 7 constantly provides circulating water for resonance electric capacity 5, cools down resonance electric capacity 5, and in this design, resonance electric capacity 5 sets up two sets ofly.

The rectifier module 2, the contactor module 3, the resonant capacitor 5 and the output module 6 are electrically connected through the copper plate and the laminated busbar 43 respectively, the cross-sectional area of the copper plate is large, the inductance is low, and the loss of electric energy power can be reduced.

In the filter capacitor module 4, the distance between adjacent metal thin film capacitors 41 is not more than 5cm, and the metal thin film capacitors 41 are arranged compactly, also for the purpose of reducing inductance between elements and power loss.

The utility model discloses still include protective resistor 8, protective resistor 8 and contactor module 3 are parallelly connected, play the effect of protection to contactor module 3.

The utility model discloses still include exhaust fan 9, exhaust fan 9 installs in one side of the cabinet body 1, can in time discharge the heat in the transformer cabinet, prevents that the component in the transformer cabinet from damaging because of high temperature, improves the life of transformer cabinet.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a transformer cabinet for induction hardening equipment, includes the cabinet body and installs rectifier module and contactor module in the cabinet body, its characterized in that: still including installing internal filter capacitor module, resonance electric capacity and the output module of cabinet, it arranges to have a plurality of metal film electric capacity, a plurality of IGBT subassembly and stromatolite on the filter capacitor module, rectifier module with the contactor module respectively with the female upper end electrical connection who arranges, a plurality of stromatolite metal film electric capacity with the female middle part electrical connection of arranging of stromatolite, a plurality of IGBT subassembly with the female left and right sides electrical connection who arranges of stromatolite, resonance electric capacity with the female lower extreme electrical connection who arranges of stromatolite, the stromatolite arrange with output module electrical connection.

2. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: the filter capacitor module further comprises a plurality of radiators, and the radiators are arranged on one side of the IGBT assembly.

3. A transformation cabinet for an induction hardening equipment according to claim 2, characterized in that: the IGBT assemblies and the radiator are respectively provided with two groups at the left side and the right side of the laminated busbar.

4. A transformation cabinet for an induction hardening apparatus according to any one of claims 1 to 3, characterized in that: the filter capacitor module further comprises a plurality of absorption capacitors, and the absorption capacitors are connected with the IGBT assemblies in parallel.

5. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: the resonance capacitors are arranged in two groups.

6. A transformation cabinet for an induction hardening equipment according to claim 1 or 5, characterized in that: still include cooling module, cooling module lead to pipe with resonance capacitance connects.

7. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: the rectifier module, the contactor module, the resonance capacitor and the output module are electrically connected with the laminated busbar through the copper plate.

8. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: and the distance between adjacent metal thin film capacitors is not more than 5 cm.

9. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: the contactor module is characterized by further comprising a protection resistor, and the protection resistor is connected with the contactor module in parallel.

10. A transformation cabinet for an induction hardening apparatus according to claim 1, characterized in that: still include the heat extraction fan, the heat extraction fan is installed one side of the cabinet body.