CN201294450Y

CN201294450Y - Novel cooling device for converter

Info

Publication number: CN201294450Y
Application number: CNU200820227643XU
Authority: CN
Inventors: 高永军; 姜新生; 宋进民; 卫刚
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2008-11-25
Filing date: 2008-11-25
Publication date: 2009-08-19
Anticipated expiration: 2018-11-25

Abstract

The utility model relates to the cooling field of a power converter of an automobile, in particular to a novel cooling device of a converter, which solves the problems that the technical indication has high requirements, the design is more difficult and the like existing in two cooling modes of an existing automobile converter. The cooling device comprises a fixed framework, wherein a heat exchanger is arranged on the fixed framework, a water inlet pipe is arranged on one side of the heat exchanger, a water outlet pipe is arranged on the other side, an electric pump is connected on the water outlet pipe, two draught fans which are corresponding to the heat exchanger are further arranged on the fixed framework, an expansion tank is arranged on the fixed framework on one side of the water outlet pipe, the heat exchanger and the electric pump are communicated with the expansion tank, a water evacuating supplementary joint is arranged on the lower portion of the expansion tank, a control valve is arranged between the water evacuating supplementary joint and the expansion tank, the cooling device has simple structure and reasonable design, can play good cooling effect to the automobile converter, prolongs the service life of an electrical electronic device, fills the gap of the water circulating cooling technology of a domestic converter, and has certain promotional value and use value.

Description

The current transformer novel cooling device

Technical field

The utility model relates to rolling stock power converter cooling field, is specially a kind of current transformer novel cooling device.

Background technology

At present, the cooling of rolling stock power converter mainly contains two kinds of patterns: boiler water circulation cooling and heat pipe heat radiation cooling.The hydrologic cycle cooling system structure mainly is made up of pump, pipeline, blower fan, heat exchanger, checkout gear etc., index request to coolant water is higher, the major company in Europe such as grasp such as Siemens, ALSTOM are also used this technology, and domestic current transformer boiler water circulation cooling technology is still immature; The heat pipe heat radiation cooling, this technology of the main employing of Japan, its radiator and power model have a style of one's own does not need power circulation system, mainly is made up of container, fin, capillary pipeline, blower fan etc., and design difficulty is bigger.

Summary of the invention

The utility model for two kinds of refrigerating modes that solve existing rolling stock current transformer exist technical requirement height, design difficulty big, be unfavorable for problem such as popularization, a kind of current transformer novel cooling device is provided.

The utility model is to adopt following technical scheme to realize: the current transformer novel cooling device, comprise fixed frame, heat exchanger is installed on the fixed frame, heat exchanger one side is provided with the water inlet pipe that is communicated with its water inlet, opposite side is provided with the outlet pipe that is communicated with its delivery port, is connected with electrodynamic pump on the outlet pipe; Its air inlet two blower fans relative with heat exchanger also are set on the fixed frame, and on the fixed frame and be positioned at outlet pipe one side and be provided with expansion tank, heat exchanger and electrodynamic pump are communicated with expansion tank by pipeline; The expansion tank below is provided with the water that is positioned at all pipeline minimum points and communicates with outlet pipe and finds time to replenish joint, and water is found time to replenish between joint and the expansion tank control valve is housed.

In order further to optimize structure of the present utility model, improve its function, carry out following structural design, described water inlet pipe and outlet pipe end are respectively equipped with quick connector, realize being connected and dismounting with interior the quick of coolant distributing pipe of cooling device.

In order further to reduce the temperature rise of electronic device-reactor in the current transformer cabinet, the air outlet of one of them blower fan is relative with reactor in the current transformer.

The described expansion tank outside is provided with the liquid level indicator, the exhaust, safety valve is equipped with at the top, and this expansion tank has double effect, when the cooling device operate as normal, but the coolant change in volume that the expansion tank compensates causes is discharged the gas that produces in the system by safety valve; And when cooling device need replenish coolant, can find time to replenish joint by water to fill, the interior liquid level indicator of expansion tank this moment can detect liquid level.

Middle pressure connector and low voltage connector by the control of current transformer control unit are installed on the described fixed frame, and middle pressure connector is connected with two blower fans and electrodynamic pump, and low voltage connector is connected with temperature sensor, pressure sensor.Pressure sensor and temperature sensor are used for detecting the temperature and pressure of cooling device coolant, and the temperature and pressure of cooling circuit is managed by the current transformer control unit.

Compared with prior art, the utility model is simple in structure, reasonable in design, can play good cooling effect for the rolling stock current transformer, prolonged the useful life of power electric component, fill up the blank of domestic current transformer boiler water circulation cooling technology, had certain popularization value and use value.

Description of drawings

Fig. 1 is a front view of the present utility model

Fig. 2 is a vertical view of the present utility model

Fig. 3 is a left view of the present utility model

Among the figure: 1-fixed frame 2-heat exchanger 3-water inlet pipe 4-outlet pipe 5-electrodynamic pump 6,7-blower fan 8-expansion tank 9-pipeline 10-water are found time to replenish and are pressed connector 18-low voltage connector among the joint 11-control valve 12-quick connector 13-liquid level indicator 14-exhaust, safety valve 15-temperature sensor 16-pressure sensor 17-

Embodiment

The current transformer novel cooling device, as shown in Figure 1, 2, comprise fixed frame 1, heat exchanger 2 is installed on the fixed frame 1, and heat exchanger 2 one sides are provided with the water inlet pipe 3 that is communicated with its water inlet, and opposite side is provided with the outlet pipe 4 that is communicated with its delivery port, be connected with electrodynamic pump 5 on the outlet pipe 4, play the effect that makes the coolant circulation, water inlet pipe 3 and outlet pipe 4 ends are separately installed with quick connector 12, and temperature sensor 15 and pressure sensor 16 are installed on the outlet pipe 4; Relative two

blower fans

6,7 of its air inlet and heat exchanger 2 also are set on the fixed frame 1, the air outlet of blower fan 7 is relative with reactor in the current transformer, on the fixed frame 1 and be positioned at outlet pipe 4 one sides and be provided with expansion tank 8, heat exchanger 2 and electrodynamic pump 5 are communicated with expansion tank 8 by pipeline 9, expansion tank 8 outsides are provided with liquid level indicator 13, and exhaust, safety valve 14 is equipped with at the top; As shown in Figure 3, expansion tank 8 belows are provided with the water that is positioned at all pipeline minimum points and communicates with outlet pipe 4 and find time to replenish joint 10, and water is found time to replenish between joint 10 and the expansion tank 8 control valve 11 is housed; Press connector 17 and low voltage connector 18 in installing on the fixed frame 1, middle pressure connector is connected with two

blower fans

6,7 and electrodynamic pump 5, and low voltage connector is connected with temperature sensor 15, pressure sensor 16.

During concrete enforcement, the cooling base of current transformer power device and coolant distributing pipe are placed on the outside of cooling device, and outlet pipe, water inlet pipe by readily removable quick connector that removes and cooling device couple together.Press connector and low voltage connector power on/off in the control of current transformer control unit, make two blower fans, electrodynamic pump, temperature sensor and pressure sensor work.Concrete cooling procedure is as follows: take away when the heat that the power electronic device of current transformer produces is crossed the installation base plate of power electronic element and coolant distributing pipe by the coolant circular flow in the cooling device outlet pipe, the coolant that raises gradually of temperature flow in the air-to-water heat exchanger through water inlet pipe then, heat is dispersed in the surrounding air environment, to reach the effect of cooling once more, simultaneously in order to improve the heat exchange effect of heat exchanger, air-flow by heat exchanger is extracted from vehicular sideview by two blower fans, first blower fan directly is discharged into ground by the passage of current transformer bottom side, second blower fan can be given the reactor air feed, and the passage by the current transformer bottom side is discharged into ground then.In the said process, but the liquid volume that the expansion tank compensates causes variation is discharged the gas in heat exchanger and the pipeline by expansion tank; When cooling device need replenish coolant, can open expansion tank and water and find time to replenish control valve between the joint, fill coolant, because water finds time to replenish the minimum point that joint is positioned at all pipelines, so very easily be full of coolant in the pipeline, and the liquid level indicator of expansion tank can in time detect liquid surface level.

For the ease of maintenance and operation, each parts of this cooling device are all very accessible from the outside of current transformer, and as shown in the figure, for example water finds time to replenish the side that joint, expansion tank and liquid level indicator etc. are positioned at fixed frame.

Claims

1, a kind of current transformer novel cooling device, comprise fixed frame (1), it is characterized in that being equipped with on the fixed frame (1) heat exchanger (2), heat exchanger (2) one sides are provided with the water inlet pipe (3) that is communicated with its water inlet, opposite side is provided with the outlet pipe (4) that is communicated with its delivery port, is connected with electrodynamic pump (5) on the outlet pipe (4); Its air inlet two blower fans (6,7) relative with heat exchanger (2) also are set on the fixed frame (1), fixed frame (1) is gone up and is positioned at outlet pipe (4) one sides and is provided with expansion tank (8), and heat exchanger (2) and electrodynamic pump (5) are communicated with expansion tank (8) by pipeline (9); Expansion tank (8) below is provided with the water that is positioned at all pipeline minimum points and communicates with outlet pipe (4) and finds time to replenish joint (10), and water is found time to replenish between joint (10) and the expansion tank (8) control valve (11) is housed.

2, current transformer novel cooling device according to claim 1 is characterized in that water inlet pipe (3) and outlet pipe (4) end are respectively equipped with quick connector (12).

3, current transformer novel cooling device according to claim 1 and 2 is characterized in that the air outlet of one of them blower fan (7) is relative with reactor in the current transformer.

4, current transformer novel cooling device according to claim 1 and 2 is characterized in that expansion tank (8) outside is provided with liquid level indicator (13), and exhaust, safety valve (14) is equipped with at the top.

5, current transformer novel cooling device according to claim 1 and 2 is characterized in that being equipped with on the outlet pipe (4) temperature sensor (15) and pressure sensor (16).

6, current transformer novel cooling device according to claim 5, it is characterized in that last middle pressure connector (17) and the low voltage connector of installing by the control of current transformer control unit (18) of fixed frame (1), the middle connector of pressing is connected with two blower fans (6,7) and electrodynamic pump (5), and low voltage connector is connected with temperature sensor (15), pressure sensor (16).