JP3173351B2 - Electric point machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric switch for switching points on a railway line.

[0002]

2. Description of the Related Art In a conventional electric point machine, a right side of a box-shaped main body is covered with an upper plate having a short vertical plate integrally formed on an end face, and the right side of the main body is penetrated back and forth. An arm is provided movably, a motor is housed in the right end of the main body, and electric components such as a relay and a terminal block and a space heater are housed in the left side of the main body.

[0003] Then, the arm is moved by a motor to switch the point of the railway line, and as a measure against moisture, the temperature inside the main body is increased and the relative humidity is reduced by a heater to prevent dew condensation and rust on electric parts. The occurrence and malfunction are prevented.

[0004]

In the case of the conventional electric point machine, the temperature inside the main body is raised and the relative humidity is lowered by a space heater as a measure against moisture. It is not preferable to increase the temperature, and there is a problem that the reliability of the electric component is reduced due to the increase in the temperature.

[0005] The present invention takes the above-mentioned points into consideration and takes measures against moisture without increasing the temperature inside the main body to prevent dew condensation on electric parts.
An object of the present invention is to provide an electric switch capable of preventing generation of rust and malfunction and improving reliability of electric components.

[0006]

In order to solve the above-mentioned problems, an electric point machine according to the present invention is arranged such that an upper portion of a vertical plate is covered with an upper portion of a mounting bracket and extends downward from a left end of the upper portion. A radiator joined to the heat radiating surface of the electronic cooling element is joined to the attached mounting portion, and the upper part is attached to the vertical plate with bolts, and a receiver of condensed water below the cooling fin joined to the cooling surface of the element. And a drainage pipe penetrating the main body is connected to the drainage port of the receiver.

Therefore, the air in the main body is cooled by the cooling fins of the element and dehumidified, and the condensed water of the cooling fins is discharged outside through the drain port and the drain pipe of the receiver.
Moisture measures are taken without raising the temperature inside the body, preventing dew condensation, rusting and malfunction of electrical parts,
In addition, the element can be easily mounted on the vertical plate.

Further, since a power supply for supplying power to the element is separated from the element and provided in a dead space on the upper plate on a support portion bent rightward from a lower right end of an upper portion of the mounting bracket,
It is easy to store the dehumidifying part in a low-height body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. 1 is a cut front view, FIG. 2 is a plan view of FIG. 1 with the cover plate removed, FIG. 3 is a partially enlarged cut front view of FIG. 1, and FIG. 4 is a plan view of FIG. Reference numeral 1 denotes a low-height main body which is cast by die-casting and has an open upper surface, 2 denotes a protruding portion formed at the right end of the main body 1, and 3 denotes a horizontal direction formed at the upper right side of the main body 1 and covering the right side. The upper plate 4 is a short vertical plate integrally formed on the end surface of the upper plate 3 on the center side of the main body 1, and the reference numeral 5 is a lid plate detachably mounted on the main body 1.

Reference numeral 6 denotes a motor housed in the protruding portion 2, and reference numeral 7 denotes an arm movably provided so as to penetrate back and forth below the upper plate 3 on the right side of the main body 1, and is provided with connecting means (not shown). The arm 7 is moved forward and backward by the drive of the motor 6 to switch points on the railway line. Reference numeral 8 denotes a terminal block in the front-rear direction provided on the upper left side of the main body 1, and 9 denotes two relays arranged in front of and behind the bottom plate of the main body 1 on the right side of the terminal block 8.

Reference numeral 10 denotes a mounting bracket, and 11 denotes an upper portion of the mounting bracket 10 formed by bending an inverted U shape, and covers an upper portion of the vertical plate 4. Reference numeral 12 denotes a support portion formed by bending rightward from the lower right end of the upper portion 11 and overlaps the upper plate 3. 13 is a mounting portion extending downward from the left end of the upper portion 11, 14 is two screw holes formed in the upper portion 11, 15 is a bolt screwed into the screw hole 14, and 16 is a screw screwed into the bolt 15. The tip of the bolt 15 is in contact with the upper end of the right side surface of the vertical plate 4, and this state is held by the nut 16, and the mounting bracket 10 is mounted on the vertical plate 4.

Reference numeral 17 denotes a vertically long container made of a heat conductive material such as aluminum having a U-shaped cut plane with an open left side surface, reference numeral 18 denotes a back plate of the container 17, and an upper portion is mounted on the mounting portion 13,
Are joined. Reference numeral 19 denotes a joining base formed by bulging leftward at a lower portion of the back plate 18, and reference numeral 20 denotes a radiating fin formed leftward above the back plate 18, and the back plate 18 and the joining base 19 are radiators. 21.

A receiving member 22 formed at the bottom of the container 17;
Reference numeral 23 denotes a drain port formed in the receiver 22, reference numeral 24 denotes a front and rear side plate formed from both sides of the back plate 18 to the left, and reference numeral 25 denotes a side plate 2.
4 is an engagement step formed on the left side edge of the back plate 18,
The joining table 19, the radiation fin 20, the receiving body 22, and the side plate 24 are integrally formed.

Reference numeral 26 denotes a vertically long surface panel made of resin, 27 denotes an intake port penetrated at a lower portion of the front panel 26, and 28 denotes bent pieces formed on both side edges of the panel 26 by bending rightward. And is removably mounted on the engagement step 25 of the side plate 24.

Numeral 29 denotes an electronic cooling element having a heat radiating surface mounted on the joining table 19, and numeral 30 denotes a cooling fin made of a heat conductive material such as aluminum mounted on the cooling surface of the element 29. , And above the receiver 22. 31 has one end connected to the drain port 23 and the other end connected to the main body 1.
A drain pipe 32 penetrating through the bottom plate is a power source provided on the support portion 12 of the mounting bracket 10, and is composed of a transformer, a capacitor, a rectifying stack, and the like, and converts a commercial AC into a DC of a predetermined voltage.

Next, the operation will be described. When a DC voltage is supplied from the power supply 32 to the electronic cooling element 29, the cooling fins 30 are cooled and absorb heat, and the joining base 19 and the radiator 21 are cooled.
Is dissipated from the radiating fins 20 through the
Rises in temperature, the air that has flowed in from the air inlet 27 of the front panel 26 is cooled by the cooling fins 30, and the water vapor in the air condenses on the cooling fins 30. The cooling fins 30
The dehumidified air is heated by the radiation fins 20 and discharged, and the humid air in the main body 1 is dehumidified.

Therefore, it is possible to take a countermeasure against moisture without increasing the temperature inside the main body 1. The power supply 32 is separated from the element 29 on the support portion 12 of the mounting bracket 10, and the dead space on the upper plate 3 is removed. , It is easy to store the dehumidified portion in the main body 1 having a low height.

[0018]

The present invention has the following effects. In the electric point machine of the present invention, the vertical part 4 of the upper plate 3 is covered with the upper part 11 of the mounting fitting 10, and the electronic cooling element 29 is mounted on the mounting part 13 extending downward from the left end of the upper part 11. The radiator 21 joined to the radiating surface is joined, the upper part 11 is attached to the vertical plate 4 with the bolt 15, and the condensed water receiver 2 is placed below the cooling fin 30 joined to the cooling surface of the element 29.
2 and the drain pipe 31 penetrating the main body 1 is connected to the drain port 23 of the receiver 22, so that the cooling fin 30 cools and dehumidifies the air in the main body 1, and the cooling fin 30
The condensed water is discharged to the outside through the drain port 23 and the drain pipe 31 of the receiver 22, so that it is possible to take a countermeasure against moisture without increasing the temperature inside the main body 1, and to prevent dew condensation and rust on electric parts. Generation and malfunction can be prevented, and the element 29 can be easily attached to the vertical plate 4.

Further, a power supply 32 for supplying power to the element 29 is separated from the element 29 on the support portion 12 which is bent rightward from the lower right end of the upper portion 11 of the mounting bracket 10, and the dead space on the upper plate 3 is reduced. Since it is provided, it is possible to easily store the dehumidified part in the main body 1 having a low height.

[Brief description of the drawings]

FIG. 1 is a cutaway front view of one embodiment of the present invention.

FIG. 2 is a plan view in which a cover plate of FIG. 1 is removed.

FIG. 3 is an enlarged sectional front view of a part of FIG. 1;

FIG. 4 is a plan view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 3 Upper plate 4 Vertical plate 6 Motor 7 Arm 8 Terminal block 9 Relay 10 Mounting bracket 11 Upper part 12 Supporting part 13 Mounting part 15 Bolt 20 Radiation fin 21 Radiator 22 Receiver 23 Drain port 29 Electronic cooling element 30 Cooling fin 31 Drainage pipe 32 power supply

Claims (1)

(57) [Claims] 1. An upper plate covering a right side portion of a box-shaped main body, a short vertical plate integrally formed on an end surface of the upper plate at a center side of the main body, and a right and left side portion of the main body moving back and forth. An arm that penetrates freely and switches a point on a railway line; a motor housed at the right end of the main body and moves the arm; and an electric component such as a relay and a terminal block housed at the left side of the main body. And an upper part bent in an inverted U-shape and covered by the vertical plate, a support part bent rightward from the lower right end of the upper part and overlapping the upper plate, and a left end of the upper part. A mounting bracket including a mounting portion extending downward; an electronic cooling element having cooling fins bonded to a cooling surface; a radiator bonded to a heat radiation surface of the element and bonded to the mounting portion; A power supply provided on a support portion for supplying power to the element; An electric pointing machine comprising: a bolt attached to a vertical plate; a receiver for condensed water provided below the cooling fins; and a drain pipe connected to a drain of the receiver and penetrating the body. .