CN214479595U

CN214479595U - Constant-temperature depth current limiting device

Info

Publication number: CN214479595U
Application number: CN202120390133.XU
Authority: CN
Inventors: 杨大军; 侯丰; 把金平; 朱自云; 樊优; 周小贝; 崔彩琼
Original assignee: Yunnan Chihong Resources Comprehensive Utilization Co ltd
Current assignee: Yunnan Chihong Resources Comprehensive Utilization Co ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-10-22
Anticipated expiration: 2031-02-22

Abstract

The application provides a constant-temperature depth current limiting device, wherein a window is arranged on a shell, an electric baffle is arranged on the window, a fan, a PLC (programmable logic controller) and a heating pipe are arranged in the shell, the electric baffle and the heating pipe are coupled with the PLC, the internal temperature of the shell can be adjusted, and the window is opened to dissipate heat at high temperature, so that potential safety hazards are reduced; when the temperature is low, the window is closed, the heating pipe heats, the internal temperature rises, the large temperature change is avoided, and the performance and the service life of electronic elements in the shell are guaranteed.

Description

Constant-temperature depth current limiting device

Technical Field

The application relates to the technical field of power equipment, in particular to a constant-temperature depth current limiting device.

Background

The deep current limiting device is used for short-circuit protection of an electric power system, can quickly limit short-circuit current in a reliable range at the initial stage of the short-circuit current, thereby achieving the purpose of protecting power distribution equipment and power supply lines, and is increasingly applied to the electric power system. However, the deep current limiting device often generates a large amount of heat in the operation process, so that the temperatures of the conductive part and the inside of the sealed cavity cannot be balanced in a natural cooling state, and the continuous high temperature can seriously affect the service life of the electronic element and bring about potential safety hazards; moreover, because the temperature difference exists in the early, middle and late periods (especially obvious in winter), the performance and the service life of the electronic element are influenced by large temperature change.

Disclosure of Invention

For solving the not enough among the prior art, the inventor provides a constant temperature degree of depth current limiting device, can carry out thermostatic control to casing inside temperature, effectively improves degree of depth current limiting device's life.

Specifically, the present application is implemented as follows:

a constant temperature depth flow-limiting device comprising: the high-speed switch is arranged at the upper end of the shell and is electrically connected with the depth current-limiting control system, a window is arranged on the shell, an electric baffle is arranged on the window and is used for opening or closing the window, a fan, a PLC (programmable logic controller) and a heating pipe are arranged in the shell, and the electric baffle, the fan and the heating pipe are respectively in coupling connection with the PLC.

Further, be provided with first temperature sensor in the casing, first temperature sensor and PLC controller coupling connection for detect the temperature in the casing.

Further, the fan is arranged at the bottom of the shell, and the heating pipe is arranged above the fan.

Further, the fan includes: first fan and second fan, the heating pipe includes: the first fan and the second fan are arranged diagonally, the first heating pipe is close to an air outlet of the first fan, and the second heating pipe is close to an air outlet of the second fan.

Further, a second temperature sensor is arranged on the outer side of the shell and coupled with the PLC.

Furthermore, a filter screen is arranged on the window.

The working principle of the application is as follows:

when the temperature is too high, the electric baffle works to open the window, air in the shell circulates with outside air, and meanwhile, the fan works to accelerate the air circulation flow and improve the cooling speed. When the temperature was crossed lowly, electric baffle closed the window, made to form airtight space in the casing, then used the heating pipe to heat up the air in the casing, the fan work for the internal circulation makes inside temperature more even, avoids the temperature to cross lowly and influence inside electronic component's performance, increase of service life.

Compared with the prior art, the invention has the beneficial effects that:

(1) the application provides a constant temperature degree of depth current limiting device can carry out aeration cooling when the temperature is high, and the temperature is crossed when low excessively, heaies up to casing inside through fan and heating pipe, effectively improves degree of depth current limiting device's life.

(2) The device is provided with temperature sensor, can effectively improve temperature control's the degree of accuracy.

(3) The window is provided with the filter screen, can prevent effectively that worm or debris from getting into in the casing.

Drawings

Fig. 1 is a schematic structural diagram of a constant-temperature depth current limiting device according to embodiment 1 of the present application;

fig. 2 is a schematic structural diagram of a constant-temperature depth current limiting device according to embodiment 2 of the present application.

Reference numerals:

1-a shell; 11-a window; 12-an electric baffle; 13-a filter screen; 2-a deep current limiting reactor; 3-a depth current limiting control system; 4-high speed switch; 5, a fan; 51-a first fan; 52-a second fan; 6-heating a tube; 61-a first heating tube; 62-a second heating pipe; 7-a PLC controller; 81-a first temperature sensor; 82-second temperature sensor.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Example 1

As shown in fig. 1, the present application provides a constant temperature depth current limiting device, which includes: the shell 1, the high-speed switch 4, the depth current-limiting reactor 2 arranged in the shell 1 and the depth current-limiting control system 3 can limit the short-circuit current in a reliable range at the initial stage of the short-circuit current, so that the purpose of protecting power distribution equipment and a power supply line is achieved. The high-speed switch 4 is arranged at the upper end of the shell 1 and is electrically connected with the depth current-limiting control system 3, a window 11 is arranged on the shell 1, an electric baffle 12 is arranged on the window 11, and the electric baffle 12 can rotate according to actual conditions to open or close the window 11. When the window 11 is opened, the air in the shell 1 can conveniently circulate with the outside air, so that the purpose of heat dissipation is achieved; when the electronic component is closed, the influence of external cold air on the performance and the service life of the electronic components in the shell 1 can be avoided. The window 11 is further provided with a filter screen 13 for preventing insects or sundries from entering the housing 1, so as to prevent elements inside the housing 1 from being affected. A PLC (programmable logic controller) 7 and a heating pipe 6 are arranged in the shell 1, and the electric baffle 12 and the heating pipe 6 are coupled with the PLC 7.

Further, a first temperature sensor 81 and a fan 5 are arranged in the housing 1, the fan 5 is arranged at the bottom of the housing 1, and the heating pipe 6 is arranged above the fan 5. The second temperature sensor 82 is arranged on the outer side of the shell 1, and the first temperature sensor 81, the second temperature sensor 82 and the fan 5 are coupled with the PLC controller 7. The first temperature sensor 81 is used to detect the temperature inside the casing 1, and the second temperature sensor 82 is used to detect the outside temperature. When first temperature sensor 81 detects inside high temperature, PLC controller 7 control electric baffle 12 rotates, opens window 11, and fan 5 work simultaneously makes inside air discharge fast for inside and outside air flow plays radiating effect. When the first temperature sensor 81 detects that the internal temperature is close to the external temperature detected by the second temperature sensor 82, the fan 5 stops working, and only natural wind is used for heat dissipation, so that energy can be effectively saved. When the temperature is lower due to the influence of the outside low temperature inside the shell, the electric baffle 12 is closed, a closed cavity is formed inside the shell 1, the fan 5 and the heating pipe 6 work, the fan 5 at the bottom blows hot air upwards, the internal circulation of the air is accelerated to flow, the air inside the shell 1 is rapidly heated, and the working performance of the electronic element is ensured.

It should be noted that, this application does not relate to the improvement to fan, heating pipe, electronic baffle, PLC controller, fan, heating pipe, electronic baffle, PLC controller that this application relates to are the commercial product, and the control method that controls fan, heating pipe, electronic baffle work through the PLC controller has also been widely used.

Example 2

As shown in fig. 2, on the basis of embodiment 1, a first fan 51, a second fan 52, a first heating pipe 61 and a second heating pipe 62 are arranged in a housing 1, the first fan 51 and the second fan 52 are arranged diagonally, the first heating pipe 61 is close to an air outlet of the first fan 51, the second heating pipe 62 is close to an air outlet of the second fan 52, and the fans are arranged oppositely to each other, so that air flows more quickly and the internal air is uniformly distributed.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A constant temperature depth flow-limiting device comprising: casing (1), high speed switch (4) and setting are in inside degree of depth current-limiting reactor (2), degree of depth current-limiting control system (3) of casing (1), its characterized in that, high speed switch (4) set up in casing (1) upper end, and with degree of depth current-limiting control system (3) electricity is connected, be provided with window (11) on casing (1), be provided with electric baffle (12) on window (11), electric baffle (12) are used for opening or close window (11), be provided with fan (5), PLC controller (7) and heating pipe (6) in casing (1), electric baffle (12), fan (5), heating pipe (6) respectively with PLC controller (7) coupling connection.

2. The constant-temperature depth current-limiting device according to claim 1, wherein a first temperature sensor (81) is arranged in the housing (1), and the first temperature sensor (81) is coupled with the PLC controller (7) and used for detecting the temperature in the housing (1).

3. The constant-temperature depth flow-limiting device of claim 1, wherein the fan (5) is disposed at the bottom of the housing (1), and the heating pipe (6) is disposed above the fan (5).

4. The constant-temperature depth flow-limiting device of claim 2, wherein the fan comprises: a first fan (51) and a second fan (52), the heating duct (6) comprising: the heating device comprises a first heating pipe (61) and a second heating pipe (62), wherein the first fan (51) and the second fan (52) are arranged diagonally, the first heating pipe (61) is close to an air outlet of the first fan (51), and the second heating pipe (62) is close to an air outlet of the second fan (52).

5. The constant-temperature depth current limiting device according to claim 2, wherein a second temperature sensor (82) is arranged outside the housing (1), and the second temperature sensor (82) is coupled with the PLC controller (7).

6. The constant-temperature depth flow-limiting device according to claim 1, wherein a filter screen (13) is provided on the window (11).