CN219085917U - An electrical automation overheating protection module - Google Patents

Abstract

The utility model relates to the technical field of electrical automation auxiliary equipment, in particular to an electrical automation overheating protection module, which includes a module shell, and a plurality of fixed connecting plates are fixedly connected to the outer wall of the module shell, and the fixed connecting plates are connected by screws. Fixed connection, the left and right ends of the module casing are fixedly connected with wiring casings, the inner middle of the module casing is fixedly connected with a pillar, and the outer wall of the pillar is provided with an overheating protection device. Through the cooperation between the high-temperature resistant wires, the first metal plate and the second metal plate, the expansion force is limited, and when the temperature reaches the critical value of the electrical component, the second metal plate just separates from the first metal plate, thereby cutting off the power. No temperature will be generated, and the user will not be reminded to cool down the electrical components. Since the thermal expansion coefficient of the second metal plate is much smaller than that of air, it will not be energized due to a slight drop in temperature, so that the electrical components will not always be in a high temperature environment, thus To achieve overheating protection of electrical components.

Description

An electrical automation overheating protection module

technical field

The utility model relates to the technical field of electric automation auxiliary equipment, in particular to an electric automation overheat protection module.

Background technique

Electrical automation refers to the operation, control and monitoring of products, which can be automatically run according to the pre-set plan or program without the participation of anyone or few people. In the process of realizing electrical automation, various Electrical components, and electrical components often generate a lot of heat after being powered on, and the electrical components will be burned out when the temperature is too high, which requires the use of electrical automation overheat protection modules to fix these electrical components.

For example, an electrical automation overheating protection module whose authorized announcement number is CN204392745U, although the above-mentioned documents can realize overheating protection of electrical components, when the electrical automation overheating protection module in the above-mentioned documents is used, after the temperature is raised to a specified temperature by air, the Thermal expansion stretches the soft cover to replace the internal hot air with the external cold air. However, due to the high thermal expansion coefficient of the air, when the external air first enters the module, the air temperature will drop slightly, resulting in air The reduced expansion force causes the soft cover to close, which keeps the electrical components in a constant high temperature environment, increasing the chance of damage to the electrical components.

Utility model content

The purpose of this utility model is to solve the electrical automation overheating protection module in the above document. Due to the high thermal expansion coefficient of the air, when the outside air just enters the module, the temperature of the air will drop slightly, resulting in a decrease in the expansion of the air. As a result, the soft cover is closed, which will cause the electrical components to always be in a high temperature environment, thereby increasing the probability of damage to the electrical components, and an electrical automation overheat protection module is proposed.

In order to achieve the above object, the utility model provides the following technical solutions:

Design an electrical automation overheating protection module, including a module shell, the outer wall of the module shell is fixed with a plurality of fixed connecting plates, and the fixed connecting plates are fixedly connected by screws, and the left and right ends of the module shell are fixed. A wiring case is fixedly connected, and a pillar is fixedly connected to the inside of the module casing, and an overheating protection device is provided on the outer wall of the pillar.

Preferably, the overheating protection device includes a high temperature resistant wire, the high temperature resistant wire is wound on the outer wall of the pillar, both ends of the high temperature resistant wire are fixedly connected to the first metal plate, and the first metal plate One side of the outer wall is attached to the second metal plate.

Preferably, one end of the second metal plate is fixedly connected to the terminal, and both ends of the terminal are fixedly connected to the wiring housing.

Preferably, the outer wall of the terminal is provided with a U-shaped winding groove.

Preferably, the other side of the outer wall of the first metal plate is fixedly connected to the fixing block, and one end of the fixing block is fixedly connected to the module casing.

The electric automation overheating protection module proposed by the utility model has the beneficial effect that: through the cooperation between the high temperature resistant wire, the first metal plate and the second metal plate, the current flows into the second metal plate through the terminal, and the second metal plate Due to the high coefficient of thermal expansion, the plate will gradually heat up after being connected to electricity. Since one end of the second metal plate is fixed, the other end will gradually bend upwards, and the second metal plate will energize the first metal plate. Because the first metal plate The coefficient of thermal expansion is small, so the expansion is limited. When the temperature reaches the critical value of the electrical component, the second metal plate is just separated from the first metal plate, so that the power will be cut off, no temperature will be generated, and the user will not be reminded of the electrical components. For cooling, because the thermal expansion coefficient of the second metal plate is much smaller than that of air, it will not be energized due to a slight drop in temperature, so that the electrical components will not always be in a high temperature environment, thereby realizing overheating protection for the electrical components.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic plan view of the internal connection structure in Fig. 1;

Fig. 3 is a three-dimensional enlarged schematic diagram of the connection structure of the terminal post, the U-shaped winding groove and the semi-arc rubber ring in Fig. 2;

FIG. 4 is a schematic diagram of the connection structure at A in FIG. 2 .

In the figure: 1. Module shell, 2. Wiring shell, 3. Fixed connecting plate, 4. Overheat protection device, 401, high temperature resistant wire, 402, first metal plate, 403, second metal plate, 4A1, semi-arc Rubber ring, 5, pillar, 6, fixed block, 7, terminal post, 8, U-shaped winding groove.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Example 1:

Please refer to Figures 1-4, in this embodiment: an electrical automation overheating protection module, including a module housing 1, the outer wall of the module housing 1 is fixed with a plurality of fixed connecting plates 3, and the fixed connecting plates 3 are fixed by screws The module case 1 can be disassembled by turning the screw. The left and right ends of the module case 1 are fixedly connected with the wiring case 2. The inside of the wiring case 2 is connected with the external wires. The middle of the module case 1 is fixed with a pillar 5 , The pillar 5 is made of a magnetically insulating material, which does not generate magnetism, and the outer wall of the pillar 5 is provided with an overheating protection device 4 .

Please refer to Fig. 2 and 4, overheat protection device 4 comprises high temperature resistant electric wire 401, first metal plate 402 and second metal plate 403, high temperature resistant electric wire 401 is wound on the outer wall of pillar 5, and the two ends of high temperature resistant electric wire 401 are all connected with The first metal plate 402 is fixedly connected, and the high-temperature-resistant wire 401 can transmit current to the first metal plate 402. The first metal plate 402 will generate heat due to the passing of the current, thereby expanding and bending. The first metal plate 402 is made of Made of tin metal material with a small coefficient of thermal expansion, one side of the outer wall of the first metal plate 402 is attached to the second metal plate 403, the first metal plate 402 transmits the current to the second metal plate 403, and the second metal plate 402 403 expands when heated, and the second metal plate 403 is made of cadmium metal material with a higher thermal expansion coefficient;

The current flows into the second metal plate 403 through the terminal 7, and the second metal plate 403 will gradually heat up after being connected to the electricity because of its high thermal expansion coefficient. Since one end of the second metal plate 403 is fixed, the other end will gradually bend upwards , the second metal plate 403 will energize the first metal plate 402, because the thermal expansion coefficient of the first metal plate 402 is small, so the expansion force is limited, when the temperature reaches the critical value of the electrical element, the second metal plate 403 is just in contact with The first metal plate 402 is separated, so that the power is cut off, no temperature will be generated, and the user is not reminded to cool down the electrical components. Since the thermal expansion coefficient of the second metal plate 403 is much smaller than that of air, it will not be energized due to a slight drop in temperature, so that Electrical components are not always in a high-temperature environment, so as to achieve overheating protection for electrical components.

One end of the second metal plate 403 is fixedly connected to the terminal 7, and the second metal plate 403 sends the current to the terminal 7. The terminal 7 is made of copper metal material, and both ends of the terminal 7 are connected to the terminal 7. The casing 2 is fixedly connected, and the wiring casing 2 is made of plastic material with insulation capability. The outer wall of the terminal post 7 is provided with a U-shaped winding groove 8. By winding the external wires on the U-shaped winding groove 8, the module Into the electrical components in series to protect the electrical components from overheating. The other side of the outer wall of the first metal plate 402 is fixedly connected to the fixing block 6. The fixing block 6 is used to support one end of the first metal plate 402. The fixing block 6 One end is fixedly connected to the module shell 1.

working principle:

When the electrical automation overheating protection module is in use, firstly, the user winds the external wires in the U-shaped winding groove 8 of the terminal post 7, thereby connecting the module in series into the electrical components to protect the electrical components from overheating. When the electrical components are started, current will flow into the second metal plate 403 through the terminal 7, and the second metal plate 403 will gradually heat up after being connected to the power due to its high coefficient of thermal expansion. Since one end of the second metal plate 403 is fixed , the other end will gradually bend upwards, and the second metal plate 403 will energize the first metal plate 402. Since the thermal expansion coefficient of the first metal plate 402 is small, the expansion force is limited. When the temperature reaches the critical value of the electrical component, The second metal plate 403 is just separated from the first metal plate 402, so the power is cut off, no temperature will be generated, and the user will not be reminded to cool down the electrical components. Since the thermal expansion coefficient of the second metal plate 403 is much smaller than that of air, it will not be caused by The temperature is slightly lowered and energized, so that the electrical components will not always be in a high temperature environment, so as to realize the overheat protection of the electrical components and complete the use of this device.

Example 2:

Please refer to Figures 2 and 3, in this embodiment: an electrical automation overheating protection module, wherein the inside of the wiring housing 2 is also provided with an overheating protection device 4, the overheating protection device 4 includes a semi-arc rubber ring 4A1, a semi-arc rubber ring The outer wall of the ring 4A1 is fixedly connected with the wiring housing 2. The semi-arc rubber ring 4A1 is made of hard rubber material. Using the radian of the inner wall of the semi-arc rubber ring 4A1, it is more convenient to wind the external wires. The semi-arc rubber ring The inner wall of the ring 4A1 fits the terminal 7;

By installing the semi-curved rubber ring 4A1 on the outer wall of the terminal 7, the user can use the radian of the inner wall of the semi-curved rubber ring 4A1 to more conveniently wrap external wires, thereby facilitating connection.

working principle:

When working in this embodiment, the user installs a semi-arc rubber ring 4A1 on the outer wall of the terminal 7, and uses the radian of the inner wall of the semi-arc rubber ring 4A1 to more conveniently wrap external wires, thereby facilitating connection, and completes the device. usage of.

Although the present invention has been illustrated and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made within the scope of the claims.

Claims (5)

1. An electric automatization overheat protection module, comprising a module housing (1), characterized in that: the outer wall rigid coupling of module shell (1) has a plurality of fixed connection boards (3), fixed connection board (3) are mutually rigid coupling through the screw, the both ends all rigid coupling has wiring shell (2) about module shell (1), the internal middle rigid coupling of module shell (1) has pillar (5), the outer wall of pillar (5) is provided with overheat protection device (4).

2. An electrically automated overheat protection module according to claim 1, wherein: the overheat protection device (4) comprises a high-temperature-resistant wire (401), the high-temperature-resistant wire (401) is wound on the outer wall of the support column (5), two ends of the high-temperature-resistant wire (401) are fixedly connected with a first metal plate (402), and one side of the outer wall of the first metal plate (402) is attached to a second metal plate (403).

3. An electrically automated overheat protection module according to claim 2, wherein: one end of the second metal plate (403) is fixedly connected with the binding post (7), and two ends of the binding post (7) are fixedly connected with the binding post shell (2).

4. An electrically automated overheat protection module according to claim 3, wherein: u-shaped winding grooves (8) are formed in the outer wall of the binding post (7).

5. An electrically automated overheat protection module according to claim 2, wherein: the other side of the outer wall of the first metal plate (402) is fixedly connected with a fixed block (6), and one end of the fixed block (6) is fixedly connected with the module shell (1).

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