CN113629560B - A distribution box that facilitates safe management - Google Patents

Abstract

The application discloses a distribution box convenient for safety management, wherein a partition board is arranged in a distribution box shell, and divides the space in the shell into a distribution space and a ventilation space; the power distribution space is used for installing and arranging power distribution components, and the ventilation space is used for installing ventilation components; a first temperature sensor, a first humidity sensor and a controller are arranged in the distribution space and are used for detecting the temperature and the humidity of air in the distribution box; the outside of the shell is provided with a second temperature sensor and a second humidity sensor for detecting the air temperature and humidity outside the distribution box. Temperature and humidity control in the distribution box is achieved through the controller, the safety coefficient of the distribution box is improved, and through the arrangement of at least two ventilation assemblies, alternate maintenance of the two ventilation assemblies is achieved, and the service time of the ventilation assemblies is prolonged.

Description

A distribution box that facilitates safe management

Technical field

The present invention relates to the technical field of safety equipment for construction projects, specifically a distribution box that facilitates safety management.

Background technique

The distribution box is a low-voltage distribution box that assembles switching equipment, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements.

Distribution boxes used in humid areas are often humid due to the hot and humid environment, high air humidity, and large changes in ambient temperature. At the same time, because the electrical equipment is continuously in operation, the small ambient temperature inside the distribution box is higher than The ambient temperature is high. When the temperature of the external environment decreases at night, the temperature of the outer shell of the distribution box decreases. When the hot and humid air in the distribution box encounters the cold outer shell of the distribution box, the water vapor in the air will condense on the inner surface of the distribution box to form dew. Especially in late autumn or winter, due to the large environmental temperature difference between the inside and outside of the distribution box, the probability of dew forming in the distribution box is greater. After this situation occurs, once dew drops onto the electrical components inside the distribution box, it is easy to cause a short circuit and cause an accident.

In the existing technology, some technical solutions provide an air inlet fan on the distribution box to blow air into the distribution box to circulate the air inside and outside the distribution box, thereby replacing the air in the distribution box. Some technical solutions even provide a filter layer on the air intake fan to filter and absorb water vapor in the air to ensure the dryness of the air inside the distribution box. However, the filter layer has a limited service life. In order to ensure the effectiveness of use, the filter layer needs to be replaced frequently. At the same time, because there is a lot of dust on construction sites, it is easy to cause dust accumulation outside the filter layer, which further affects the filtration effect. This results in a decrease in usage efficiency and an increase in fan energy consumption.

Therefore, how to provide a distribution box that is easy to manage safely and can not only dehumidify the air but also regenerate the filter layer is a technical problem that those skilled in the art need to solve urgently.

Contents of the invention

In view of this, the purpose of this application is to provide a distribution box that is easy to manage safely, so as to improve the safety factor of the distribution box and increase the service life of the filter layer.

In order to achieve the above objectives, this application provides the following technical solutions.

A distribution box that facilitates safe management. The distribution box includes a shell. A partition is provided inside the shell. The partition divides the space inside the shell into a power distribution space and a ventilation space;

The power distribution space is used to install power distribution components, and the ventilation space is used to install ventilation components;

A first temperature sensor, a first humidity sensor and a controller are provided in the power distribution space; the first temperature sensor is used to detect the air temperature inside the power distribution box, and the first humidity sensor is used to detect the air temperature inside the power distribution box. Internal air humidity; a second temperature sensor and a second humidity sensor are provided outside the shell. The second temperature sensor is used to detect the air temperature outside the distribution box. The second humidity sensor is used to detect the distribution box. outside air humidity.

Further, the ventilation assembly includes an upper pipe, a filter pipe, a direct blowing pipe, a three-way regulating valve, an exhaust fan, and a filter layer; one end of the upper pipe is connected to the inlet of the three-way regulating valve, and the other end is connected to an exhaust fan; One end of the filter pipe and the direct blow pipe are respectively connected to the two outlets of the three-way regulating valve; the filter layer is connected to the filter pipe.

Furthermore, an air blowing port is provided at the other end of the direct blowing pipe, and the air blowing port is provided on one side of the filter layer to ensure that the air blown from the air blowing port can blow to the outer surface of the filter layer.

Further, the controller includes a timer for calculating the continuous use time of the ventilation assembly.

Further, the distribution box has at least two ventilation components, and each two ventilation components form a group, and the two ventilation components in each group are respectively recorded as the first ventilation component and the second ventilation component; each In the group of ventilation components, when one of the ventilation components exhausts air into the distribution box, the other ventilation component exhausts air outside the distribution box.

Furthermore, the exhaust fan is a forward and reverse rotating fan.

Further, a sensing module is provided outside the second temperature sensor. The sensing module includes a lower shell and a top shell. The lower shell has a cylindrical structure. One end of the lower shell is vertically disposed on the lower surface of the bottom plate of the housing. , the top shell is sealed at the other end of the lower shell, the bottom plate of the shell is provided with a through wiring hole at a position corresponding to the lower shell, and the second temperature sensor extends into the lower shell through the wiring hole , and make the sensing probe of the second sensor contact the inner surface of the top shell.

Further, in the method of using the distribution box that facilitates safe management, the first temperature sensor is used to detect the air temperature inside the distribution box, and the first humidity sensor is used to detect part of the air humidity in the distribution box;

The second temperature sensor is used to detect the air temperature outside the distribution box, and the second humidity sensor is used to detect the air humidity outside the distribution box;

The controller collects and compares the air temperature and humidity inside and outside the distribution box to determine whether the temperature and/or humidity value in the distribution box exceeds the corresponding threshold;

If the temperature and/or humidity value in the distribution box exceeds the corresponding threshold, the ventilation component is turned on to ventilate the air in the distribution space.

Furthermore, in the method of using the distribution box that facilitates safe management, the controller determines the temperature and humidity inside and outside the distribution box and turns on the ventilation component to ventilate the air in the distribution space, specifically as follows:

When the temperature inside the distribution box is greater than the outside temperature and the internal air humidity is less than the external humidity, the first ventilation component acts as an exhaust component. The three-way regulating valve of the first ventilation component closes the direct blowing pipe and opens the filtering pipe. The high-temperature gas in the distribution box is discharged outside the distribution box through the filter pipe, and the high-temperature and low-humidity air inside the distribution box dehumidifies and dries the filter layer;

At the same time, the second ventilation component serves as the air intake component. The three-way regulating valve of the second ventilation component closes the direct blowing pipe, opens the filter pipe, and sucks the low-temperature air outside the distribution box into the distribution box through the filter pipe to realize distribution. Cooling inside the electrical box;

When the temperature inside the distribution box is greater than the outside temperature, and the internal air humidity is greater than the external humidity; the first ventilation component serves as an exhaust component, and the three-way regulating valve of the first ventilation component closes the filter pipe and opens the direct blowing pipe, so that The high-temperature gas in the distribution box is discharged to the outside of the distribution box through a direct blowing pipe; the high-temperature and high-humidity air inside the distribution box blows on the outer surface of the filter layer through the air blowing port, blowing off the floating dust on the outer surface of the filter layer;

At the same time, the second ventilation component serves as the air intake component. The three-way regulating valve of the second ventilation component closes the direct blowing pipe, opens the filtering pipe, and sucks the low-temperature and low-humidity air outside the distribution box through the filtering pipe into the distribution box. Cooling and humidification in distribution boxes;

When the temperature inside the distribution box is lower than the outside temperature and the internal air humidity is greater than the external humidity; the first ventilation component serves as the exhaust component, and the three-way regulating valve of the first ventilation component closes the filter pipe and opens the direct blowing pipe, so that The high-humidity air in the distribution box is discharged to the outside of the distribution box through a direct blowing pipe; the high-humidity air inside the distribution box blows on the outer surface of the filter layer through the air blowing port, blowing off the floating dust on the outer surface of the filter layer;

At the same time, the second ventilation component serves as the air intake component. The three-way regulating valve of the second ventilation component closes the direct blowing pipe and opens the filter pipe. The low-humidity air outside the distribution box is sucked into the distribution box through the filter pipe to realize distribution. Dehumidification in electrical boxes;

When the temperature inside the distribution box is lower than the external temperature and the internal air humidity is lower than the external humidity, neither the first ventilation component nor the second ventilation component works.

Further, the timer calculates the usage time of the first ventilating component as the exhaust component and the second ventilating component as the air intake component continuously;

If the usage time of the first ventilation component as an exhaust component and the second ventilation component as an air intake component exceeds the time threshold, the controller controls the rotation state of the exhaust fans on the first ventilation component and the second ventilation component. Flip is performed so that in the next continuous time period, the first ventilation component becomes the air intake component and the second ventilation component becomes the exhaust component.

The advantages and effects of this application are as follows.

(1) This application implements alternate maintenance of the two ventilation components by setting up two ventilation components, thereby extending the use time of the ventilation components.

(2) This application protects the sensor from damage and improves its service life by arranging the external sensor in the sensing component.

(3) This application realizes temperature and humidity control in the distribution box through the controller, improving the safety factor of the distribution box.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application so that they can be implemented in accordance with the contents of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand. , the preferred embodiments of the present application are described in detail below with reference to the accompanying drawings.

Based on the following detailed description of specific embodiments of the present application in conjunction with the accompanying drawings, those skilled in the art will further understand the above and other objects, advantages and features of the present application.

Description of drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are: For some embodiments of the present application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts. Throughout the drawings, similar elements or portions are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn to actual scale.

Figure 1 is a front view of a distribution box that facilitates safe management provided by the embodiment of the present application;

Figure 2 is a bottom view of a distribution box that facilitates safe management provided by the embodiment of the present application;

Figure 3 is a front view of the internal structure of a distribution box that facilitates safe management provided by the embodiment of the present application;

Figure 4 is a front view of the ventilation assembly of the distribution box that facilitates safe management provided by the embodiment of the present application;

Figure 5 is a top view of the ventilation assembly of the distribution box that facilitates safe management provided by the embodiment of the present application;

Figure 6 is a front view of the internal structure of a distribution box that facilitates safe management provided by another embodiment of the present application;

Figure 7 is a front view of a distribution box sensing module that facilitates safe management provided by another embodiment of the present application;

Figure 8 is a cross-sectional view of a distribution box sensing module that facilitates safe management provided by another embodiment of the present application;

Among them, 1-shell, 2-upper door, 3-lower door, 4-handle, 5-ventilation component, 6-storage cabinet, 7-first sensing module, 11-partition, 12-power distribution space, 13-ventilation space, 14-upper fan, 15-lower fan, 51-filter duct, 52-direct blow duct, 53-three-way regulating valve, 54-exhaust fan, 55-air outlet, 56-filter layer, 57- Rotating handle, 58-upper pipe, 71-lower shell, 72-top shell, 73-sensing probe.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. In the following description, specific details, such as specific configurations and components, are provided solely to assist in a comprehensive understanding of embodiments of the present application. Accordingly, it will be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. Additionally, descriptions of well-known functions and constructions are omitted from the embodiments for clarity and conciseness.

It will be understood that reference throughout this specification to "one embodiment" or "the present embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of "one embodiment" or "this embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

The term "and/or" in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, B exists alone, and A and A exist simultaneously. In the three cases of B, the term "/and" in this article describes another associated object relationship, which means that there can be two relationships. For example, A/ and B can mean: A alone exists, and A and B exist alone. , In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

The term "at least one" in this article is just an association relationship that describes associated objects, indicating that there can be three relationships. For example, at least one of A and B can mean: A exists alone, and A and B exist simultaneously. There are three cases of B alone.

It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations There is no such actual relationship or sequence between them. Furthermore, the terms "includes," "includes," or any other variation thereof are intended to cover a non-exclusive inclusion.

Example 1

With reference to Figures 1-3, a distribution box that facilitates safe management includes a shell 1. The shell of the distribution box is widely used in this field. Its structure and principle are well known to those skilled in the art and will not be described in detail here. .

A partition 11 is provided inside the housing 1. The partition 11 divides the space inside the housing 1 into an upper power distribution space 12 and a lower ventilation space 13. The power distribution space 12 is used for installing and setting up power distribution. Components (not shown in the figure and will not be described in detail here); the ventilation space 13 is used to install the ventilation assembly 5 to achieve air and moisture exchange in the power distribution space.

Furthermore, the housing 1 is also provided with an upper door 2 and a lower door 3. The upper door 2 can open and close the power distribution space 12, and the lower door 3 can open and close the ventilation space 13. The upper door 2 and the lower door 3 are both provided with handles 4 to facilitate the opening and closing of the upper door 2 and the lower door 3.

Preferably, in order to prevent moisture in the air from entering the interior of the housing 1 through the gaps between the upper door 2 and the lower door 3 and the outer shell 1, thereby causing potential safety hazards to the distribution box, there is a gap between the upper door 2, the lower door 3 and the outer shell 1. A waterproof silicone layer (not shown) is provided in the gaps to ensure dryness inside the distribution box when the upper door 2 and lower door 3 are closed.

A first temperature sensor, a first humidity sensor and a controller are provided in the power distribution space. The first temperature sensor is used to detect the air temperature inside the distribution box, and the first humidity sensor is used to detect part of the air humidity inside the distribution box.

A second temperature sensor and a second humidity sensor are provided outside the distribution box shell 1. The second temperature sensor is used to detect the air temperature outside the distribution box. The second humidity sensor is used to detect the air temperature outside the distribution box. air humidity.

The controller is respectively connected to the first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor and the ventilation component 5 through wires. The controller collects and compares the air temperature and humidity inside and outside the distribution box to determine whether there is overheating or overhumidity in the distribution box compared to the external environment. When the controller detects the temperature and humidity in the distribution box, /or when the humidity value exceeds the corresponding threshold, the ventilation component 5 is turned on to ventilate the air in the distribution space 12 to achieve cooling and/or dehumidification inside the distribution box.

What needs special explanation is the circuit connection method and power supply situation between the first temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor, the ventilation assembly 5 and the controller and other electronic components. They all belong to conventional technical means in the field. Based on the disclosure of this application, those skilled in the art can realize circuit connections between electronic components through conventional technical means, which will not be described in detail in this application.

Example 2

On the basis of Embodiment 1, combined with Figures 3-5 of the description, this embodiment further discloses the specific structure of the ventilation assembly 5.

Referring to Figures 4-5 of the description, the ventilation assembly 5 includes an upper pipe 58, a filter pipe 51, a direct blow pipe 52, a three-way regulating valve 53, an exhaust fan 54, a filter layer 56 and an air blowing port 55.

One end of the upper pipe 58 is connected to the inlet of the three-way regulating valve 53 , and the other end is connected to the exhaust fan 54 .

One ends of the filter pipe 51 and the direct blowing pipe 52 are respectively connected to the two outlets of the three-way regulating valve 53 . The other end of the filter pipe 51 is provided with a threaded port, and the filter layer 56 is detachably and rotatably connected to the filter pipe 51 through threads. The other end of the direct blowing pipe 52 is provided with an air blowing port 55 . The air blowing port 55 is disposed on one side of the filter layer 56 to ensure that the air blown out by the air blowing port 55 can blow to the outer surface of the filter layer 56 .

The air outlet of the air blowing port 55 is an upwardly inclined opening to ensure that the air blown out of the air blowing port 55 can be blown to the outer surface of the filter layer 56 to the maximum extent. The exhaust fan 54 is a forward and reverse rotating fan.

When the ventilation assembly 5 is installed in the ventilation space 13, the exhaust fan 54 passes through the partition 11 to ensure that the upper surface of the exhaust fan 54 is flush with the upper surface of the partition 11; the filter duct 51 passes through the shell 1 The bottom plate makes the end of the threaded port on the filter pipe 51 flush with the lower surface of the bottom plate of the housing 1, ensuring that when the filter layer 56 is rotated and installed on the threaded port, the lower surface of the filter layer 56 is flush with the lower surface of the bottom plate or sunk into the bottom plate; The direct blowing pipe 52 extends outside the bottom plate of the housing 1 to ensure that the blowing port 55 is located on one side of the filter layer 56 .

It is worth mentioning that at least two ventilation components 5 are installed in the ventilation space 13, and each two ventilation components form a group, and the two ventilation components in each group are respectively recorded as the first ventilation components. assembly and the second ventilation assembly; in each group of ventilation components, when one of the ventilation components 5 exhausts air into the distribution box, the other ventilation component 5 exhausts air outside the distribution box.

It should be noted that the three-way regulating valve 53 is connected to the controller and is controlled by the controller.

Furthermore, the controller includes a timer for calculating the usage time of the ventilation component 5 in any continuous working state.

Furthermore, the filter layer 56 is provided with a rotating handle 57 to facilitate the staff to remove and install the filter layer 56 when the filter layer needs to be replaced.

Example 3

On the basis of Embodiment 1-2, combined with Figures 3-5 of the description, this embodiment takes two ventilation components 5 installed in the ventilation space 13 as an example to further disclose the working principle of the ventilation components.

A first ventilation component and a second ventilation component are installed in the ventilation space 13 . During use, the controller collects the temperature and humidity inside and outside the distribution box through the first temperature sensor, the first humidity sensor, the second temperature sensor, and the second humidity sensor respectively.

When the temperature inside the distribution box is greater than the outside temperature and the internal air humidity is less than the external humidity. The first ventilation component serves as an exhaust component. Its exhaust fan starts to rotate forward. The three-way regulating valve of the first ventilation component closes the direct blowing pipe and opens the filter pipe, so that the high-temperature gas in the distribution box is discharged to the power distribution through the filter pipe. outside of the box. During this process, the high-temperature and low-humidity air inside the distribution box dehumidifies and dries the filter layer to maintain the drying performance of the filter layer and ensure the dry service life of the filter layer.

At the same time, the second ventilation component serves as the air intake component, and its exhaust fan begins to reverse. The three-way regulating valve of the second ventilation component closes the direct blowing pipe, opens the filter pipe, and sucks the low-temperature air outside the distribution box into the distribution box through the filter pipe. inside the electrical box to achieve cooling within the distribution box. During this process, the filter layer filters and dries particles and moisture in the outside air.

When the temperature inside the distribution box is greater than the outside temperature, and the internal air humidity is greater than the external humidity. The first ventilation component serves as an exhaust component. Its exhaust fan starts to rotate forward. The three-way regulating valve of the first ventilation component closes the filter pipe and opens the direct blowing pipe, so that the high-temperature gas in the distribution box is discharged to the distribution box through the direct blowing pipe. Outside the electrical box. During this process, the high-temperature and high-humidity air inside the distribution box blows the outer surface of the filter layer through the air blowing port, blowing off the floating dust on the outer surface of the filter layer, thereby maintaining the filtration performance of the filter layer and extending the filtration service life of the filter layer.

At the same time, the second ventilation component serves as the air intake component, and its exhaust fan starts to reverse. The three-way regulating valve of the second ventilation component closes the direct blowing pipe, opens the filter pipe, and sucks the low-temperature and low-humidity air outside the distribution box through the filter pipe. In the distribution box, it can achieve cooling and humidification in the distribution box. During this process, the filter layer filters and dries particles and moisture in the outside air.

When the temperature inside the distribution box is lower than the outside temperature and the internal air humidity is greater than the external humidity. The first ventilation component serves as an exhaust component, and its exhaust fan starts to rotate forward. The three-way regulating valve of the first ventilation component closes the filter pipe and opens the direct blowing pipe, so that the high-humidity gas in the distribution box is discharged through the direct blowing pipe. Outside the distribution box. During this process, the high-humidity air inside the distribution box blows the outer surface of the filter layer through the air blowing port, blowing off the floating dust on the outer surface of the filter layer, and extending the filtration service life of the filter layer.

At the same time, the second ventilation component serves as the air intake component, and its exhaust fan begins to reverse. The three-way regulating valve of the second ventilation component closes the direct blowing pipe, opens the filter pipe, and sucks the low-humidity air outside the distribution box into the distribution box through the filter pipe. In the electrical box, realize dehumidification in the distribution box. At the same time, the heat dissipation and cooling of electronic components in the distribution box is achieved through air circulation. During this process, the filter layer filters and dries particles and moisture in the outside air.

When the temperature inside the distribution box is lower than the outside temperature, and the internal air humidity is lower than the external humidity. Neither the first ventilation component nor the second ventilation component is working.

During the above process, the timer calculates the usage time of the first ventilating component as the exhaust component and the second ventilating component as the air intake component continuously.

If the first ventilation component is continuously used as an exhaust component and the second ventilation component is continuously used as an air intake component for more than the time threshold, it means that the filter layer on the first ventilation component has completed drying and/or filtration performance. Maintenance, and the drying and/or filtration performance of the filter layer on the second ventilation component requires maintenance, the controller controls the rotation status of the exhaust fans on the first ventilation component and the second ventilation component to reverse, that is, the original forward rotation The exhaust fan starts to rotate in the reverse direction, and the originally reversed exhaust fan starts to rotate forward, so that in the next continuous period of time, the first ventilation component becomes the air intake component, and the second ventilation component becomes the exhaust component, causing the second ventilation component to The filter layer is then dried and/or maintained for filter performance. This method of use can not only extend the overall use time of the ventilation components, but also ensure constant temperature and humidity in the distribution box.

Example 4

On the basis of Embodiments 1-3, combined with Figure 3 of the description, this embodiment further discloses the air circulation system of the distribution box.

In order to protect the filter layer 56 and the air blowing port 55 of the distribution box in the present invention, the ventilation assembly 5 is installed in the ventilation space 13 at the lower part of the distribution box.

As is known in the art, hot air is lighter and mostly accumulates in the upper air. Therefore, the exhaust fan 54 of the ventilation assembly 5 is disposed at the bottom of the power distribution space 12, which will affect the efficiency of exhaust and air intake.

In order to avoid this problem, this embodiment further installs a lower fan 15 on the upper surface of the partition 11 and an upper fan 14 on the lower surface of the roof of the power distribution space 12. The lower fan 15 and the upper fan 14 rotate forward. , a reversal, circulates the air in the distribution space 12, uniformizes the air temperature and humidity in the distribution box, and ensures the ventilation efficiency of the ventilation components.

Example 5

On the basis of Embodiments 1-4 and with reference to Figures 7-8 of the description, this embodiment further discloses the installation position and installation method of the second temperature sensor and the second humidity sensor.

The second temperature sensor and the second humidity sensor are both arranged at the bottom of the distribution box to avoid damage.

In order to ensure the air tightness in the distribution box, the second temperature sensor is arranged in the first sensing module 7. The sensing module 7 includes a lower shell 71 and a top shell 72. The lower shell 71 is cylindrical. structure, the lower shell 71 is vertically arranged on the lower surface of the bottom plate of the housing 1, the top shell 72 is sealed and arranged on the top of the lower shell 71, and the lower surface of the bottom plate of the outer shell 1 is provided with a position corresponding to the lower shell 71. The second temperature sensor extends out of the lower case 71 through the wiring hole, so that the sensing probe 73 of the second sensor contacts the inner surface of the top case 72 .

It is important to note that the gap between the wires and the threading holes of the second temperature sensor is sealed to prevent the air in the distribution box from affecting the measurement accuracy of the second temperature sensor.

At the same time, the lower shell 71 is made of thermal insulation material to prevent the temperature on the distribution box from transmitting to the lower shell 71 and affecting the measurement accuracy of the second temperature sensor.

The top shell 72 is made of thermally conductive material to ensure that the outside air temperature can be accurately transmitted to the sensing probe 73, to ensure the measurement accuracy of the second temperature sensor, and to protect the sensing probe 73 from damage.

The second humidity sensor is disposed in a second sensing module (not shown). The arrangement and structure of the second sensing module and the first sensing module are basically the same. The difference lies in that the second sensing module The module does not have a top shell 72. The second humidity sensor passes through the threading hole and enters the lower shell 71, so that the top of the sensing probe 73 is flush with the top of the lower shell 71. On the premise of ensuring the measurement accuracy of the second humidity sensor , which can protect the sensing probe from being damaged.

The above description of all disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The utility model provides a block terminal convenient to safety control, its characterized in that, block terminal includes shell (1), the inside baffle (11) that is provided with of shell (1), baffle (11) divide into distribution space (12) and ventilation space (13) with the space in shell (1);

the power distribution space (12) is used for installing and arranging power distribution components, and the ventilation space (13) is used for installing a ventilation assembly (5);

a first temperature sensor, a first humidity sensor and a controller are arranged in the power distribution space; the first temperature sensor is used for detecting the air temperature in the distribution box, and the first humidity sensor is used for detecting the air humidity in the distribution box; the outside of the shell (1) is provided with a second temperature sensor and a second humidity sensor, the second temperature sensor is used for detecting the air temperature outside the distribution box, and the second humidity sensor is used for detecting the air humidity outside the distribution box;

the ventilation assembly (5) comprises an upper pipeline (58), a filtering pipeline (51), a direct blowing pipeline (52), a three-way regulating valve (53), an exhaust fan (54) and a filtering layer (56); one end of the upper pipeline (58) is connected to the inlet of the three-way regulating valve (53), and the other end is connected with an exhaust fan (54); one end of the filtering pipeline (51) and one end of the direct blowing pipeline (52) are respectively connected to two outlets of the three-way regulating valve (53); the filter layer is connected to a filter pipeline (51);

the other end of the direct blowing pipeline (52) is provided with an air blowing port (55), the air blowing port (55) is arranged on one side of the filter layer (56), and air blown by the air blowing port (55) can be ensured to be blown to the outer surface of the filter layer (56);

the distribution box is provided with at least two ventilation assemblies (5), each two ventilation assemblies form a group, and the two ventilation assemblies in each group are respectively marked as a first ventilation assembly and a second ventilation assembly; in each group of ventilation assemblies, when one ventilation assembly (5) pumps air into the distribution box, the other ventilation assembly (5) exhausts air out of the distribution box;

the controller opens the subassembly (5) of taking a breath to the air in distribution space (12) through judging the inside and outside humiture of block terminal, specifically:

when the temperature inside the distribution box is higher than the external temperature and the humidity of the air inside the distribution box is lower than the external humidity, the first ventilation assembly is used as an exhaust assembly, the three-way regulating valve of the first ventilation assembly closes the direct blowing pipeline, and opens the filtering pipeline, so that high-temperature gas in the distribution box is discharged outside the distribution box through the filtering pipeline, and the high-temperature low-humidity air inside the distribution box dehumidifies and dries the filtering layer;

meanwhile, the second ventilation assembly is used as an air inlet assembly, a three-way regulating valve of the second ventilation assembly closes a direct blowing pipeline, a filtering pipeline is opened, low-temperature air outside the distribution box is sucked into the distribution box through the filtering pipeline, and the temperature in the distribution box is reduced;

when the temperature inside the distribution box is higher than the external temperature and the humidity of the internal air is higher than the external humidity; the first ventilation assembly is used as an exhaust assembly, the three-way regulating valve of the first ventilation assembly closes the filtering pipeline and opens the direct blowing pipeline, so that high-temperature gas in the distribution box is discharged outside the distribution box through the direct blowing pipeline; high-temperature and high-humidity air in the distribution box blows the outer surface of the filter layer through the air blowing port, and blows off floating dust on the outer surface of the filter layer;

meanwhile, the second ventilation assembly is used as an air inlet assembly, a three-way regulating valve of the second ventilation assembly closes a direct blowing pipeline, a filtering pipeline is opened, low-temperature air outside the distribution box is sucked into the distribution box through the filtering pipeline, and the temperature in the distribution box is reduced;

when the temperature inside the distribution box is smaller than the external temperature and the humidity of the internal air is larger than the external temperature; the first ventilation assembly is used as an exhaust assembly, the three-way regulating valve of the first ventilation assembly closes the filtering pipeline and opens the direct blowing pipeline, so that the high-humidity gas in the distribution box is discharged outside the distribution box through the direct blowing pipeline; high-humidity air in the distribution box blows the outer surface of the filter layer through the air blowing port, and blows off floating dust on the outer surface of the filter layer;

meanwhile, the second ventilation assembly is used as an air inlet assembly, a three-way regulating valve of the second ventilation assembly closes a direct blowing pipeline, a filtering pipeline is opened, and low-humidity air outside the distribution box is sucked into the distribution box through the filtering pipeline, so that dehumidification in the distribution box is realized;

when the temperature inside the distribution box is smaller than the external temperature and the humidity of the internal air is smaller than the external temperature, the first ventilation assembly and the second ventilation assembly do not work.

2. A distribution box facilitating safety management according to claim 1, characterized in that the controller comprises a timer for calculating the continuous use time of the ventilation assembly (5).

3. The electrical box for facilitating security management of claim 1, wherein the exhaust fan (54) is a counter-rotating fan.

4. The distribution box convenient for safety management according to claim 2, wherein the second temperature sensor is externally provided with a sensing module (7), the sensing module (7) comprises a lower shell (71) and a top shell (72), the lower shell (71) is of a cylindrical structure, one end of the lower shell (71) is vertically arranged on the lower surface of the bottom plate of the shell (1), the top shell (72) is hermetically arranged on the other end of the lower shell (71), a penetrating wiring hole is formed in the position, corresponding to the lower shell (71), on the bottom plate of the shell (1), of the second temperature sensor, the second temperature sensor extends out of the lower shell (71) through the wiring hole, and a sensing probe (73) of the second sensor is in contact with the inner surface of the top shell (72).

5. The method of claim 4, wherein,

detecting the air temperature in the distribution box through a first temperature sensor, and detecting the air humidity in the distribution box through a first humidity sensor;

detecting the air temperature outside the distribution box through a second temperature sensor, and detecting the air humidity outside the distribution box through a second humidity sensor;

the controller is used for collecting and comparing the temperature and the humidity of the air inside and outside the distribution box and judging whether the temperature and/or the humidity value inside the distribution box exceeds a corresponding threshold value or not;

if the temperature and/or humidity value in the distribution box exceeds the corresponding threshold value, the ventilation assembly (5) is started to ventilate the air in the distribution space (12).

6. The method of claim 5, wherein the timer calculates a time of use for the first ventilation assembly to continue as the exhaust assembly and the second ventilation assembly to continue as the intake assembly;

if the service time of the first ventilation assembly continuously serving as the exhaust assembly and the service time of the second ventilation assembly continuously serving as the intake assembly exceed the time threshold, the controller controls the rotation states of the exhaust fans on the first ventilation assembly and the second ventilation assembly to be turned over, so that the first ventilation assembly becomes the intake assembly and the second ventilation assembly becomes the exhaust assembly in the next continuous time period.