Injection molding machine servo controller IGBT module liquid cooling device

Abstract

The utility model discloses an injection molding machine servo controller IGBT module liquid cooling device which comprises an IGBT module, a circulating pump, a liquid storage tank, a condenser and a connecting pipe, and further comprises a mounting seat made of metal materials, cooling liquid is contained in the liquid storage tank, the liquid storage tank is mounted above the circulating pump, the IGBT module is fixedly mounted on the mounting seat, and the connecting pipe is connected with the IGBT module. A through channel allowing cooling liquid to circulate is formed in the mounting base, the condenser is provided with a condensation pipeline, and the connecting pipe is communicated with the circulating pump, the mounting base and the condenser to form a cooling liquid circulation loop. According to the utility model, a liquid cooling mode is adopted, the cooling effect is good, the cooling efficiency is high, the phenomenon that the injection molding machine stops working due to heating damage of the IGBT module in the working process is effectively avoided, the principle structure is simple, the manufacturing cost is low, the installation is convenient, and the operation is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a liquid cooling device for an IGBT module of a servo controller of an injection molding machine. Background Art

[0002] Injection molding machine hydraulic servo control has been widely used in the plastic processing industry. Due to the particularity of the injection molding process, the pressure and flow of the oil in the injection molding process vary greatly at each stage of the entire cycle. This causes the injection molding machine servo hydraulic control system to frequently accelerate or decelerate during work, and the voltage of each line fluctuates. In particular, the high voltage generated when the servo motor brakes and decelerates will be transmitted to the busbar through the inverter module of the servo controller. The IGBT module (Insulate-Gate Bipolar Transistor) is the power switching element of the inverter module. It will frequently switch between high load and low load during the normal operation of the injection molding machine. The current passes through the IGBT module to generate a lot of heat. Its excessive power consumption and temperature increase cause the performance of the IGBT module to decline or even damage, which is not conducive to stable work. In addition, the unit price of the IGBT module in the servo controller of the injection molding machine is high and the replacement cost is high. Once damaged, the company will also face the situation of suspension of work for repair, which will cause unpredictable consequences on the cost of use and production time.

[0003] In the current prior art, most of the key components such as IGBT modules, diodes, capacitors, etc. are cooled by air cooling, and fans are installed to dissipate the heat. However, the heat dissipation effect is not significant, and IGBT modules are often damaged. Utility Model Content

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] The invention discloses a liquid cooling device for an IGBT module of a servo controller of an injection molding machine, comprising an IGBT module, a circulation pump, a liquid storage tank, a condenser and a connecting pipe, and also comprising a mounting base made of a metal material. The liquid storage tank is filled with coolant and is mounted above the circulation pump. The IGBT module is fixedly mounted on the mounting base. A through channel for the circulation of coolant is provided inside the mounting base. The condenser has a condensation pipe. The connecting pipe connects the circulation pump, the mounting base and the condenser to form a circulation loop of the coolant.

[0006] Furthermore, the mounting seat is made of aluminum alloy material.

[0007] Furthermore, the circulation pump is fixedly installed at one end of the outlet of the condensation pipe of the condenser.

[0008] Furthermore, the condensation pipe in the condenser is spiral.

[0009] Furthermore, the condenser is equipped with a heat sink and a cooling fan.

[0010] The beneficial effects of the utility model are: adopting a circulating liquid cooling method, the cooling effect is good, the cooling efficiency is high, and the phenomenon of stopping the operation of the injection molding machine due to heating and damage of the IGBT module is effectively avoided. The principle structure is simple, the cost is low, the installation is convenient, and the operation is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal structure of the mounting base of the utility model.

[0013] As shown in the figure: 1. IGBT module; 2. Mounting base; 3. Circulation pump; 4. Liquid storage tank; 5. Cooling fan; 6. Condenser; 7. Connecting pipe. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] like Figure 1 , 2 As shown, the cooling and heat dissipation principle of the IGBT module of the utility model adopts liquid cooling and heat dissipation, including an IGBT module 1, a circulating pump 3, a liquid storage tank 4, a condenser 6 and a connecting pipe 7. The liquid storage tank 4 is installed above the circulating pump 3. The liquid storage tank 4 contains coolant as a source and replenishing device of the coolant. The IGBT module 1 is fixedly installed on a metal mounting base 2. The mounting base 2 is made of a metal material with high thermal conductivity. From the aspect of thermal conductivity, silver, copper, gold, aluminum, tungsten, sodium, molybdenum and other metals can be selected. From the perspective of price cost, service life, lightweight and other purposes, aluminum alloy materials are preferably used to make the mounting base 2. A through channel for the circulation of coolant is opened inside the mounting base 2. The condenser 6 has a condensation pipe. The connecting pipe 7 connects the circulating pump 3, the mounting base 2 and the condenser 6 to form a circulation loop of the coolant.

[0016] The circulation and heat dissipation process of the coolant is as follows: the circulation pump 3 transports the coolant to the channel opened inside the mounting base 2 through the connecting pipe 7. The coolant in the channel takes away the heat conducted from the IGBT module 1 to the mounting base 2. The coolant that has completed the heat dissipation process is transported to the condenser 6 through the connecting pipe 7. The condenser 6 condenses and cools the coolant. Then the coolant flows back to the circulation pump 3 through the condenser 6 to continue the next work.

[0017] For more convenient installation and use, the circulation pump 3 can be fixedly installed at one end of the outlet of the condensation pipe of the condenser 6 .

[0018] In order to enhance the cooling effect of the condenser 6 on the condensation of the coolant, a heat sink and a cooling fan 5 can be installed in the condenser 6, and the condensation pipe in the condenser 6 can also be set to a spiral shape, which can increase the condensation time and condensation contact area of ​​the coolant in the condensation pipe.

[0019] The present utility model is not limited to the above-mentioned optimal implementation mode. Any other products identical or similar to the present utility model derived by anyone under the inspiration of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A liquid cooling device for an IGBT module of a servo controller of an injection molding machine, comprising an IGBT module (1), a circulation pump (3), a liquid storage tank (4), a condenser (6) and a connecting pipe (7), characterized in that: It also includes a mounting base (2) made of a metal material, a liquid storage tank (4) containing coolant and mounted above a circulating pump (3), an IGBT module (1) fixedly mounted on the mounting base (2), an interior of the mounting base (2) having a through channel for the circulation of coolant, a condenser (6) having a condensation pipe, and a connecting pipe (7) connecting the circulating pump (3), the mounting base (2) and the condenser (6) to form a circulation loop of the coolant.

2. The liquid cooling device for IGBT module of injection molding machine servo controller according to claim 1 is characterized in that: The mounting seat (2) is made of aluminum alloy material.

3. The liquid cooling device for IGBT module of injection molding machine servo controller according to claim 1, characterized in that: The circulation pump (3) is fixedly mounted at one end of the outlet of the condensation pipe of the condenser (6).

4. The liquid cooling device for IGBT module of injection molding machine servo controller according to claim 1, characterized in that: The condensation pipe in the condenser (6) is spiral.

5. The liquid cooling device for IGBT module of injection molding machine servo controller according to claim 1, characterized in that: The condenser (6) is equipped with a heat sink and a cooling fan (5).

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