Arranged electrical contact anti-condensation and anti-frost device and method

Abstract

The present invention relates to a turnout switching device, and in particular to an arranged electrical contact anti-condensation and anti-frost device and method, wherein an airflow generation module converts electrical energy into the rotational mechanical energy of a fan, and the fan rotates to generate airflow. At the same time, the electrical energy is converted into heat energy through an airflow heating module. When the airflow passes through the airflow heating module, a high-temperature airflow is obtained through heat exchange. The high-temperature airflow passes through the airflow guide module and reaches the electrical contact. The temperature of the electrical contact is made higher than the ambient temperature, thereby avoiding condensation and frost on the electrical contact, or removing condensation and frost on the electrical contact. The device is easy to install and convenient for on-site maintenance, and avoids the introduction of components that may conduct the contact into key parts of the electrical contact, thereby reducing the possibility of incorrect connection of the contact.

Description

Technical Field

[0001] The present invention relates to a turnout switching device, and in particular to an anti-condensation and anti-frost device and method for arranged electrical contacts, which is suitable for preventing condensation or frost on electrical contacts and fixed bodies, and is suitable for preventing condensation or frost on static contact pieces of arranged contacts of equipment using arranged contacts, such as switch machines, close contact inspectors and other turnout switching equipment. Background Art

[0002] The switch switching equipment uses contacts as the key components for controlling the electrical connection of various equipment. Currently, various types of electric switch machines and switch closeness checkers used in rail transit all use distributed contacts as their electrical contacts.

[0003] Arranged contacts have the advantages of mature structure, easy maintenance, and stable performance. Arranged contacts are composed of static contacts and dynamic contacts. In daily use and maintenance, condensation often occurs on the static contact pieces of arranged contacts. In some areas, condensation may turn into frost due to temperature. Condensation and frost on contacts lead to poor contact, affecting the reliability of the equipment installed with arranged contacts and increasing the maintenance workload and difficulty of contacts and equipment.

[0004] Currently, the solutions for removing condensation and frosting from contacts available on the market mostly involve introducing electric heating elements at the contacts. Electrical contacts are core components for equipment control, and arranging electric heating elements and other components that may cause accidental conduction of the contacts at electrical contacts introduces a new source of risk and reduces the reliability of the equipment. Summary of the invention

[0005] The object of the present invention is to provide an anti-condensation and anti-frost device and method for arranged electrical contacts, which can prevent or eliminate condensation or frost at static contacts of arranged contacts, and has convenient maintenance and stable performance.

[0006] To solve the above problems, the technical solution of the present invention is: it relates to an anti-condensation and anti-frost device and method for arranged electrical contacts, which is characterized in that: it includes an airflow generating module, an airflow heating module, and an airflow guiding module, the airflow generating module and the airflow heating module are fixed in a shell, one end of the airflow guiding module is fixed on the output interface of the shell, and the other end is fixed near the arranged contacts; the airflow generating module includes: a wiring terminal, a motor, a fan, and an air trough; the wiring terminal connects the device with the external wiring and acts as a branch line inside the device.

[0007] The motor in the airflow generating module is fixed in the shell or on the wind slot in the shell, and the motor shaft end is fixed with a fan that can rotate to disturb the gas; the wind slot is fixed on the shell to guide the airflow driven by the rotation of the fan to the airflow heating module.

[0008] The airflow heating module is an electrothermal conversion material, such as an electrothermal film or an electrothermal wire, which is fixed on the airflow heating module frame, and the frame is fixed on the shell.

[0009] The airflow heating module can be made of electrothermal conversion material.

[0010] The airflow guide module includes a joint fixed at the shell end, an airflow guide tube, and an airflow output end. The joint is fixed at the airflow output port of the shell. The joint is connected to the airflow output end via an airflow duct. The airflow duct is composed of a hollow tubular material. The airflow output end can be structurally shaped according to the contact requirements.

[0011] The airflow emission end is led out to a plurality of air outlets by the airflow guide pipe.

[0012] The airflow guide pipe leads to an air outlet, which is fixed near the connection point, and the airflow acts on the connection point through the air outlet.

[0013] The advantages of the present invention are: the airflow generation module converts electrical energy into the rotational mechanical energy of the fan, and the fan rotates to generate airflow. At the same time, the electrical energy is converted into thermal energy through the airflow heating module. After the airflow with a lower temperature passes through the airflow heating module, it is converted into an airflow with a higher temperature through heat exchange. The airflow with a higher temperature passes through the airflow guide module and reaches the electrical contacts. The humidity at the electrical contacts is lower than that of the surrounding environment, and the temperature of the electrical contacts is higher than the ambient temperature, thereby avoiding condensation and frost on the electrical contacts, or removing condensation and frost on the electrical contacts. This solution is easy to install and convenient for on-site maintenance, avoids the introduction of components that may turn on the contacts at key locations at the electrical contacts, and reduces the possibility of incorrect connection of the contacts.

[0014] The present invention will be further described below in conjunction with the accompanying drawings of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention;

[0016] Figure 2 is a schematic diagram of the airflow generation module structure of an embodiment;

[0017] Figure 3 is a schematic diagram of the structure of the airflow heating module of the embodiment;

[0018] Figure 4 Schematic diagram of the structure of block electric heating material and radiator.

[0019] In the figure, 1. air flow generating module; 1-1. terminal block; 1-2. motor; 1-3. fan; 1-4. air trough; 2. air flow heating module; 2-2. block structure; 2-3. heat sink; 3. air flow guiding module; 3-1. joint; 3-2. air flow duct; 3-3. air flow emitting end; 4. shell; 5. arranged contacts; 5-1. contact sheet. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and methods adopted by the present invention to achieve the predetermined purpose, the specific implementation methods, structural features and methods of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Example 1 Figure 1 As shown, the present invention relates to an anti-condensation and anti-frost device and method for arranged electrical contacts, which is characterized in that: it includes an airflow generating module 1, an airflow heating module 2, and an airflow guiding module 3, the airflow generating module 1 and the airflow heating module 2 are fixed in a shell 4, one end of the airflow guiding module 3 is fixed on the output interface of the shell 4, and the other end is fixed near the arranged contact 5; the airflow generating module 1 includes: a wiring terminal 1-1, a motor 1-2, a fan 1-3, and an air slot 1-4; the wiring terminal 1-1 connects the device with the external wiring and acts as a branch line inside the device.

[0022] like Figure 2 As shown, the motor 1-2 in the air flow generating module 1 is fixed inside the shell 4 or on the wind slot 1-4 inside the shell 4, and the fan 1-3 that can rotate to disturb the gas is fixed at the shaft end of the motor 1-2; the wind slot 1-4 is fixed on the shell 4, and the air flow driven by the rotation of the fan 1-3 is guided to the air flow heating module 2.

[0023] like Figure 3 As shown, the airflow heating module 2 is a material for electrothermal conversion, such as an electrothermal film or an electrothermal wire, which is fixed on the frame of the airflow heating module 2 , and the frame is fixed on the upper side of the shell 4 .

[0024] like Figure 4 As shown, in order to facilitate production and increase heat exchange efficiency, the airflow heating module 2 can be made of an electrothermal conversion material into a block structure 2-2, and a metal conductor sheet is led out from the block structure 2-2, and the metal conductor sheet is a heat sink 2-3 structure.

[0025] In order to adapt to the shape of the arranged contact 5, an output port and a connector 3-1 are provided at the airflow emission end 3-3 to solve the problem of condensation or frost on the surface of the contact piece 5-1.

[0026] In actual use, the number of the joints 3-1, the airflow guide tubes 3-2 and the airflow outlets 3-3 can be set according to the specific joint shape and usage requirements.

[0027] The airflow guide module 3 includes a joint 3-1 fixed at the end of the shell 4, an airflow guide tube 3-2, and an airflow output end 3-3. The joint 3-1 is fixed at the airflow output port of the shell 4. The joint 3-1 is connected to the airflow output end 3-3 via the airflow duct 3-2. The airflow duct 3-2 is composed of a non-metallic hollow tubular material. The airflow output end 3-3 can be structurally shaped according to the contact requirements.

[0028] The airflow issuing end 3-3 is led out to branches by the airflow guide pipe 3-2, and the shape of the branches is set according to actual use requirements.

[0029] The working principle of the present invention is: when power enters the terminal 1-1 and is diverted to the motor 1-2 and the electric heating device 2-1, the motor 1-2 is driven to drive the fan 1-3 to rotate and generate airflow, and the airflow is transmitted to the airflow heating device 2 through the wind slot 1-4, obtains the heat energy generated by the electric heating device 2-1, and becomes a higher temperature airflow; the higher temperature airflow enters the airflow guide tube 3-2 through the joint 3-1 of the airflow guide module 3, and is guided to the vicinity of the arranged contact 5, and acts on the arranged contact 5 through the airflow emission end 3-3, so that the temperature of the contact piece 5-1 of the arranged contact 5 is higher than the ambient temperature, thereby achieving the purpose of preventing or eliminating the generation of condensation or frost on the static contact piece 5-1 of the arranged contact 5.

[0030] The present invention adopts electric drive airflow to obtain a higher temperature airflow, and applies the higher temperature airflow to the electrical contacts, so that the temperature of the electrical contacts is higher than the ambient temperature, thereby preventing or eliminating condensation or frost on the static contact piece 5-1 of the arranged contact 5.

[0031] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A distributed electrical contact anti-condensation and anti-frost device, characterized by: The invention comprises an airflow generation module (1), an airflow heating module (2), and an airflow guide module (3), wherein the airflow generation module (1) and the airflow heating module (2) are fixed in a shell (4), one end of the airflow guide module (3) is fixed on the output interface of the shell (4), and the other end is fixed near the arranged contact point (5); the airflow generation module (1) comprises: a wiring terminal (1-1), a motor (1-2), a fan (1-3), and an air trough (1-4); the wiring terminal (1-1) connects the device with external wiring and acts as a branch line inside the device; the airflow guide module (3) comprises: a joint (3-1) fixed at the end of the shell (4), an airflow guide tube (3-2), and an airflow output end (3-3); the joint (3-1) is fixed at the airflow output port of the shell (4), the joint (3-1) is connected to the airflow output end (3-3) through the airflow conduit (3-2), the airflow conduit (3-2) is composed of a hollow tubular material, and the airflow output end (3-3) can be shaped according to the contact point requirements. The structure is designed such that the airflow outlet (3-3) is led out from the airflow guide tube (3-2), and the airflow outlet (3-3) guides the airflow to the electrical contact point; the motor (1-2) in the airflow generation module (1) is fixed in the housing (4), and the shaft end of the motor (1-2) is fixed with a fan (1-3) that can rotate to disturb the air; the wind slot (1-4) is fixed on the housing (4), and guides the airflow driven by the rotation of the fan (1-3) to the airflow heating module (2); the airflow heating module (2 ) is an electrothermal conversion material, which is fixed in sheet or line form on the frame of the airflow heating module (2), and the frame is fixed on the side position of the shell (4); the airflow heating module (2) can be made of a material with a high resistivity into a block structure (2-2), and a metal conductor sheet is led out from the block structure (2-2), and the metal conductor sheet is a heat sink (2-3) structure; when the power enters the terminal (1-1), it is diverted to the motor (1-2) and the electric heating device (2-1); the motor (1-2) drives the fan (1-3 ) rotates to generate airflow, which is transferred to the airflow heating module (2) through the wind slot (1-4), obtains the heat energy generated by the electric heating device (2-1), and becomes airflow with a higher temperature. The airflow with a higher temperature enters the airflow guide tube (3-2) through the joint (3-1) of the airflow guide module (3), and is guided to the vicinity of the arranged contact (5). The airflow acts on the arranged contact (5) through the airflow emission end (3-3), so that the temperature of the contact piece (5-1) of the arranged contact (5) is higher than the ambient temperature. The airflow with a higher temperature passes through the airflow guide module and reaches the electrical contact, so that the humidity at the electrical contact is lower than that of the ambient environment, and the temperature of the electrical contact is higher than the ambient temperature, thereby achieving the purpose of preventing or eliminating the generation of condensation or frost on the static contact piece (5-1) of the arranged contact.

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