An intelligent humidity control device for the internal environment of a cable branch box

Abstract

The application relates to the technical field of cable branch boxes, and discloses an intelligent humidity control device for the internal environment of a cable branch box, which comprises a shell body and a controller, a box body is arranged outside the shell body, an air inlet and an air outlet are arranged on the upper and lower sides of the box body, filter screens are arranged in the air inlet and the air outlet, a fan assembly is arranged in the shell body, a bottom plate connected to the shell body is arranged below the fan assembly, and an upper baffle arranged in the shell body is arranged on the outer side of the air inlet. The electromagnetic body and the elastic telescopic structure are matched, the circuit of the electromagnetic body is connected in series with the working circuit of the fan, the opening and closing degree of the air vent can be adapted according to the rotating speed of the fan, the heating element is matched, the internal environment humidity of the cable branch box can be timely controlled, the working efficiency of the device is higher when the internal environment of the cable branch box is closer to the dew point, the problems such as dew condensation are greatly reduced, and the working stability of the power grid is improved.

Description

Technical Field

[0001] This invention relates to the field of cable branch box technology, specifically to an intelligent humidity control device for the internal environment of a cable branch box. Background Technology

[0002] The condensation inside cable distribution boxes is essentially a physical phenomenon called "water vapor condensation." Specifically, when water vapor in the air inside the box encounters a cool solid surface, it releases heat and condenses into small water droplets. Water vapor from the outside air can enter the box through gaps, the "breathing effect," the cables themselves, or by evaporation of water from the bottom. Condensation inside the box can be caused by the conductor effect of the cables or temperature differences in the external environment. This condensation can lead to short circuits, accelerated equipment corrosion and aging, and threaten the stability of the power grid.

[0003] Currently, to control humidity inside cable distribution boxes, heating elements and ventilation devices are typically used to regulate internal humidity, while airflow is adjusted using structures such as louvers. However, in actual use, louvers are difficult to clean, and filters and other structures require manual disassembly and cleaning, increasing maintenance difficulty. Furthermore, existing devices cannot be adapted to the actual conditions inside the cable distribution box, resulting in energy waste. Summary of the Invention

[0004] In view of the shortcomings of existing humidity control devices inside cable branch boxes mentioned in the background art, the present invention provides an intelligent humidity control device for the internal environment of cable branch boxes, which has the advantages of automatic adaptive adjustment and self-cleaning, and solves the technical problems mentioned in the background art such as low adaptability of humidity control effect and inconsistency in maintenance.

[0005] This invention provides the following technical solution: an intelligent humidity control device for the internal environment of a cable branch box, comprising an outer shell and a controller. A box is installed on the outside of the outer shell, and an air inlet and an air outlet are arranged vertically on the outside of the box. Filters are installed inside the air inlet and the air outlet. A fan assembly is installed inside the outer shell, and a base plate connected to the inside of the outer shell is arranged below the fan assembly. An upper baffle is installed inside the outer shell on the outside of the air inlet. An elastic connector is connected to the top of the upper baffle, and the top end of the elastic connector is fixedly connected to the outer shell. An electromagnet I is installed on the top of the outer shell on the outside of the elastic connector. A connecting block connected to the top of the upper baffle is arranged below the electromagnet I. When the electromagnet I is energized, it generates a magnetic attraction force on the connecting block. A cleaning component is arranged on the side of the upper baffle near the air inlet. A detection component is installed on the outside of the outer shell, and a heating component is also arranged inside the box.

[0006] Furthermore, the cleaning component includes an upper baffle with bristles attached to the side of the upper baffle near the air inlet. These bristles contact the filter inside the air inlet. The upper baffle has a cavity I inside, and a sealing plate I is inserted into the cavity I. The top of the sealing plate I is connected to the inner wall of the cavity I via a spring. The upper baffle and the sealing plate I have overlapping slots. When the spring is not affected by external force, the slots on the upper baffle and the sealing plate I are staggered. At this time, the airflow on the upper baffle is blocked from side to side, thus sealing the air inlet. The bottom of the sealing plate I is made of a magnetically attractive material.

[0007] Furthermore, the base plate has a cavity II inside, and a sealing plate II is inserted into the cavity II. The end of the sealing plate II near the outer side of the outer shell is connected to the inner wall of the cavity II by a spring. The structure of the sealing plate II is the same as that of the sealing plate I, and the overall structure of the base plate is also the same as that of the sealing plate I. It has slots that are staggered with each other. When there is no external force, the base plate as a whole cannot be ventilated. The end of the sealing plate II near the upper baffle is made of a magnetic material.

[0008] Furthermore, an electromagnet II is installed on the side of the bottom plate near the housing. At the same time, the electromagnet II is located directly below the upper baffle. The electromagnet II is connected to the circuit of the housing and is controlled by the controller. When the electromagnet II is energized, the magnetic attraction force it generates on the sealing plate I and sealing plate II is greater than the spring tension they experience. After the electromagnet II is energized, the displacement distance of the sealing plate I and sealing plate II makes the slots on the upper baffle and the bottom plate aligned. At this time, the upper baffle and the bottom plate are in the open state, which facilitates the automatic cleaning of the air inlet filter.

[0009] Furthermore, the electromagnet I is controlled by the controller inside the outer shell and connected to the circuit. The electromagnet I is located directly above the connecting block. The maximum magnetic force generated by the electromagnet I is greater than the external force required for the elastic connector to shorten, which enables the controller to control the electromagnet I to determine the magnetic attraction force of the electromagnet I according to the detection data of the detection component, thereby realizing different opening and closing degrees of the upper baffle.

[0010] Furthermore, the bottom of the upper baffle is connected to a lower baffle, and the lower baffle is located outside the air outlet and covers the air outlet.

[0011] Furthermore, the elastic connector consists of a spring and a freely telescopic rod. When there is no external force, the upper and lower baffles at the bottom of the elastic connector seal the air inlet and outlet, ensuring the airtightness of the box.

[0012] Furthermore, the drive motor of the fan assembly is controlled by the controller, and the drive motor of the fan assembly is a reversible motor. The fan assembly has baffles connected to both ends of the base plate on both sides, and the fan assembly and the air inlet are located on the same horizontal plane. The airflow generated by the fan assembly enters the box through the air inlet, thereby promoting the airflow circulation inside the box.

[0013] Furthermore, the detection components are installed on the outside of the outer casing and inside the housing, respectively. The detection components located inside the housing are positioned at the bottom and away from the air outlet. This position can reduce the impact on detection accuracy caused by rising heat and sinking cold and humid air.

[0014] Furthermore, the heating component is installed inside the housing and located below the air inlet. The heating component is controlled by a controller on the housing and its heating temperature is less than 40°C.

[0015] The present invention has the following beneficial effects: 1. This invention combines an electromagnet and an elastic telescopic structure, and connects the electromagnet's circuitry in series with the fan's operating circuitry. This allows the opening and closing of the ventilation openings to be adapted to the fan's speed. Simultaneously, through the cooperation of a heating element, it enables timely control of the humidity inside the cable branch box. Furthermore, the closer the internal environment of the cable branch box is to the dew point, the higher the device's operating efficiency, greatly reducing condensation and other problems, and improving the stability of the power grid.

[0016] 2. The present invention provides a movable sealing plate I (22) inside the air inlet baffle and opens staggered slots on the two. At the same time, bristles are provided on the inner side of the sealing plate. The filter screen can be automatically cleaned by the cooperation of spring, electromagnet and fan reversal, which reduces the pressure of manual maintenance and improves the convenience of the device. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the invention installed in a cable branch box; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is a bottom view of the structure of the present invention when it is installed in a cable branch box.

[0018] In the diagram: 1. Outer shell; 2. Upper baffle; 21. Cavity I; 22. Sealing plate I; 23. Lower baffle; 24. Connecting block; 3. Elastic connector; 4. Electromagnet I; 5. Base plate; 51. Cavity II; 52. Sealing plate II; 6. Electromagnet II; 7. Fan assembly; 8. Detection assembly; 9. Box; 91. Air inlet; 92. Air outlet; 10. Heating assembly. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 A smart humidity control device for the interior environment of a cable branch box includes an outer shell 1 and a controller. A box 9 is installed on the outside of the outer shell 1. An air inlet 91 and an air outlet 92 are arranged vertically on the outside of the box 9. Filters are installed inside the air inlet 91 and the air outlet 92 to filter external impurities and prevent them from entering the cable branch box. The bottom of the outer shell 1 is lower than the bottom of the air outlet 92. The controller controls the various components inside the outer shell 1 to work together. Its control logic is open source technology and can be understood by those skilled in the art from the prior art, so it will not be described in detail here. The operating power of each component is controlled according to the degree of abnormality of the detection value of the detection component 8 to achieve hierarchical control and save energy.

[0021] Please see Figure 3 An upper baffle 2, installed inside the outer casing 1, is disposed on the outer side of the air inlet 91. A cleaning component is provided on the side of the upper baffle 2 near the air inlet 91. The cleaning component includes the upper baffle 2, and brush bristles are connected to the side of the upper baffle 2 near the air inlet 91. The brush bristles contact the filter screen inside the air inlet 91. A cavity I21 is formed inside the upper baffle 2, and a sealing plate I22 is inserted into the cavity I21. The top of the sealing plate I22 is connected to the inner wall of the cavity I21 by a spring. The upper baffle 2 and the sealing plate I22 have slots that can overlap. When the spring is not affected by external force, the slots on the upper baffle 2 and the sealing plate I22 are staggered. At this time, the airflow on the upper baffle 2 is blocked from side to side, thus sealing the air inlet 91. The bottom of the sealing plate I22 is open to be cleaned. The material is magnetic. When the electromagnet II6 is energized, it becomes magnetic. When the sealing plate I22 is magnetically attracted, it moves relative to the upper baffle 2. At this time, the slots on the upper baffle 2 and the sealing plate I22 coincide. At the same time, when the upper baffle 2 moves down, the bristles on its inner side clean the dust and other impurities on the outside of the air inlet 91. The fan assembly 7 reverses to generate reverse airflow, which allows the dust and other impurities on the air inlet 91 to be discharged from the outer casing 1 with the airflow, realizing the automatic cleaning function and facilitating manual maintenance. When the electromagnet II6 is de-energized, the sealing plate I22 returns to its original position under the action of the spring, and the upper baffle 2 re-closes the box 9 to ensure the airtightness of the inside of the cable branch box. The bottom of the upper baffle 2 is connected to the lower baffle 23, and the lower baffle 23 is located outside the air outlet 92 and covers the air outlet 92.

[0022] Please see Figure 4Below the fan assembly 7 is a base plate 5 connected to the inside of the outer casing 1. The base plate 5 has a cavity II 51 inside, and a sealing plate II 52 is inserted into the cavity II 51. The end of the sealing plate II 52 near the outside of the outer casing 1 is connected to the inner wall of the cavity II 51 by a spring. The structure of the sealing plate II 52 is the same as that of the sealing plate I 22, and the overall structure of the base plate 5 is also the same as that of the sealing plate I 22, with staggered slots. Without external force, the base plate 5 cannot ventilate. The end of the sealing plate II 52 near the upper baffle 2 is made of a magnetically attractive material. An electromagnet II is installed on the side of the base plate 5 near the housing 9. 6. Meanwhile, the electromagnet II6 is located directly below the upper baffle 2. The electromagnet II6 is connected to the outer shell 1 by circuit and is controlled by the controller. After the electromagnet II6 is energized, the magnetic attraction force generated by the electromagnet II6 on the sealing plate I22 and sealing plate II52 is greater than the spring tension on them. After the electromagnet II6 is energized, the displacement distance of the sealing plate I22 and sealing plate II52 makes the slots on the upper baffle 2 and the bottom plate 5 aligned. At this time, the upper baffle 2 and the bottom plate 5 are in the open state, which facilitates the airflow during the automatic cleaning of the air inlet 91 filter, improves the cleaning efficiency, and avoids the problem of dust and other impurities being trapped inside the outer shell 1.

[0023] Please see Figure 3 An electromagnet I4 is mounted on the top of the outer shell 1 on the outer side of the elastic connector 3. Below the electromagnet I4 is a connecting block 24 connected to the top of the upper baffle 2. The connecting block 24 is made of a magnetically attractive material. When the electromagnet I4 is energized, it generates a magnetic force on the connecting block 24. This magnetic force causes the upper baffle 2 to gradually move upwards. The electromagnet I4 is controlled by a controller inside the outer shell 1 and connected to the circuit. The electromagnet I4 is located directly above the connecting block 24. The maximum magnetic force generated by the electromagnet I4 is greater than the external force required for the elastic connector 3 to shorten, allowing the controller to determine the magnetic force of the electromagnet I4 based on the detection data from the detection component 8. The circuit controls the attraction of the electromagnet I4. The upper baffle 2 is opened to different degrees, which can control the opening and closing of the air inlet 91 and make the opening and closing of the air inlet 91 match the airflow generated by the fan assembly 7. When the temperature and humidity inside the box 9 are too abnormal, the fan assembly 7 can be in a high-efficiency state, reducing energy consumption. At the same time, it reduces the contact between the air inlet 91 and the outside, reduces the accumulation of impurities in the air inlet 91, and facilitates cleaning. The top of the upper baffle 2 is connected to the elastic connector 3, and the top of the elastic connector 3 is fixedly connected to the outer shell 1. The elastic connector 3 is composed of a spring and a freely telescopic rod. When there is no external force, the upper baffle 2 and the lower baffle 23 at the bottom of the elastic connector 3 seal the air inlet 91 and the air outlet 92, ensuring the airtightness of the inside of the box 9.

[0024] Please see Figure 2A fan assembly 7 is installed inside the outer casing 1. The drive motor of the fan assembly 7 is controlled by a controller, and the drive motor of the fan assembly 7 is a reversible motor. Baffles connected to both ends of the base plate 5 are respectively provided on both sides of the fan assembly 7. The fan assembly 7 and the air inlet 91 are located on the same horizontal plane. The airflow generated by the fan assembly 7 enters the housing 9 through the air inlet 91, thereby promoting airflow circulation inside the housing 9. A detection assembly 8 is installed on the outside of the outer casing 1. The detection assembly 8 is installed on the outside of the outer casing 1 and inside the housing 9. The detection assembly 8 located inside the housing 9 is located at the bottom and away from the air outlet. The position of the inlet 92 can reduce the impact of rising heat and sinking cold and humid air on the detection accuracy. The outer shell 1 is also equipped with a heating component 10 installed inside the box 9. The heating component 10 is installed inside the box 9 and is located below the air inlet 91. When heat rises, the airflow generated by the fan component 7 can carry the heat generated by the heating component 10 for circulation, which improves the recovery efficiency of temperature and humidity inside the cable branch box. The heating component 10 is controlled by the controller on the outer shell 1, and the heating temperature of the heating component 10 is less than 40°C to avoid the problem of overheating inside the cable branch box of the box 9.

[0025] The method of using (working principle) of this invention is as follows: The detection components 8 inside and outside the enclosure 9 monitor the temperature and humidity inside and outside the enclosure 9 in real time. When the temperature and humidity range inside and outside the enclosure 9, as well as the temperature and humidity range difference, deviate from the specified range, the controller controls the fan assembly 7 to start working according to the current temperature and humidity values. The closer the detected value inside the enclosure 9 is to the dew point, the higher the speed of the fan assembly 7, and the higher the magnetic attraction of the electromagnet I4. The electromagnet I4 generates a magnetic attraction force on the connecting block 24 and gradually increases it. The greater the shortening range of the elastic connector 3, the greater the upward movement distance of the upper baffle 2, that is, the larger the opening of the air inlet 91 and the air outlet 92. At the same time, the heating assembly 10 also starts working. The airflow generated by the fan assembly 7 enters the enclosure 9. The filters on the air inlet 91 and the air outlet 92 filter out external impurities, etc., while the heating assembly 10... The generated heat circulates inside the housing 9 with the airflow, and the airflow carrying moisture is discharged from the air outlet 92. When the temperature and humidity inside the housing 9 approach normal, the fan assembly 7 stops working. After the fan assembly 7 stops working, the electromagnet I4 is de-energized, the elastic connector 3 extends and returns to its original length, and the upper baffle 2 simultaneously seals the air inlet 91 and the air outlet 92, maintaining the sealed space inside the housing 9. When the upper baffle 2 moves down, the bristles on the inner side of the upper baffle 2 clean the filter screen on the air inlet 91. At the same time, the electromagnet II6 is energized and becomes magnetic, and the sealing plate I22 moves down relative to the upper baffle 2 due to the magnetic attraction. The sealing plate I22 and the slot on the upper baffle 2 are connected. At the same time, the fan assembly 7 reverses and causes the airflow at the air inlet 91 to flow in the opposite direction, realizing the function of automatically cleaning dust and other impurities on the air inlet 91.

[0026] It should be noted that, in this document, terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart humidity control device for the interior environment of a cable branch box, comprising an outer casing (1) and a controller, wherein a box (9) is installed on the outside of the outer casing (1), and an air inlet (91) and an air outlet (92) are provided on the outside of the box (9) distributed vertically, characterized in that: The air inlet (91) and air outlet (92) are equipped with filters. A fan assembly (7) is installed inside the outer casing (1). A base plate (5) connected to the inside of the outer casing (1) is arranged below the fan assembly (7). An upper baffle (2) installed inside the outer casing (1) is arranged on the outside of the air inlet (91). An elastic connector (3) is connected to the top of the upper baffle (2), and the top end of the elastic connector (3) is fixedly connected to the inside of the outer casing (1). 3) An electromagnet I (4) is installed on the top of the outer shell (1). A connecting block (24) connected to the top of the upper baffle (2) is arranged below the electromagnet I (4). When the electromagnet I (4) is energized, it generates a magnetic attraction force on the connecting block (24). A cleaning component is provided on the side of the upper baffle (2) near the air inlet (91). A detection component (8) is installed on the outer side of the outer shell (1). A heating component (10) is also installed inside the box (9) of the outer shell (1).

2. The intelligent humidity control device for the internal environment of a cable branch box according to claim 1, characterized in that: The cleaning assembly includes an upper baffle (2), with bristles connected to the side of the upper baffle (2) near the air inlet (91). The bristles contact the filter screen inside the air inlet (91). A cavity I (21) is opened inside the upper baffle (2), and a sealing plate I (22) is inserted into the cavity I (21). The top of the sealing plate I (22) is connected to the inner wall of the cavity I (21) by a spring. The upper baffle (2) and the sealing plate I (22) have slots that can overlap. When the spring is not affected by external force, the slots on the upper baffle (2) and the sealing plate I (22) are staggered. At this time, the airflow of the upper baffle (2) is not flowing from side to side. The bottom of the sealing plate I (22) is made of a magnetic material.

3. The intelligent humidity control device for the internal environment of a cable branch box according to claim 2, characterized in that: The bottom plate (5) has a cavity II (51) inside, and a sealing plate II (52) is inserted inside the cavity II (51). The end of the sealing plate II (52) near the outer side of the outer shell (1) is connected to the inner wall of the cavity II (51) by a spring. The structure of the sealing plate II (52) is the same as that of the sealing plate I (22), and the overall structure of the bottom plate (5) is also the same as that of the sealing plate I (22). It has slots that are staggered. When there is no external force, the bottom plate (5) cannot be ventilated. The end of the sealing plate II (52) near the upper baffle (2) is made of a material that can be magnetically attracted.

4. The intelligent humidity control device for the internal environment of a cable branch box according to claim 3, characterized in that: An electromagnet II (6) is installed on the side of the base plate (5) near the housing (9). At the same time, the electromagnet II (6) is located directly below the upper baffle (2). The electromagnet II (6) is connected to the outer shell (1) by circuit and is controlled by the controller. After the electromagnet II (6) is powered on, the magnetic attraction force generated on the sealing plate I (22) and sealing plate II (52) is greater than the spring tension on them. After the electromagnet II (6) is powered on, the displacement distance of the sealing plate I (22) and sealing plate II (52) makes the slots on the upper baffle (2) and the base plate (5) aligned.

5. The intelligent humidity control device for the internal environment of a cable branch box according to claim 2, characterized in that: The electromagnet I (4) is controlled by the controller inside the outer shell (1) and connected to the circuit. The electromagnet I (4) is located directly above the connecting block (24). The maximum magnetic force generated by the electromagnet I (4) is greater than the external force required for the elastic connector (3) to shorten.

6. The intelligent humidity control device for the internal environment of a cable branch box according to claim 1, characterized in that: The bottom of the upper baffle (2) is connected to the lower baffle (23), and the lower baffle (23) is located outside the air outlet (92) and covers the air outlet (92).

7. The intelligent humidity control device for the internal environment of a cable branch box according to claim 6, characterized in that: The elastic connector (3) consists of a spring and a freely telescopic rod. When there is no external force, the upper baffle (2) and the lower baffle (23) at the bottom of the elastic connector (3) close the air inlet (91) and the air outlet (92).

8. The intelligent humidity control device for the internal environment of a cable branch box according to claim 1, characterized in that: The drive motor of the fan assembly (7) is controlled by the controller, and the drive motor of the fan assembly (7) is a reversible motor. The two sides of the fan assembly (7) are respectively provided with baffles connected to the two ends of the base plate (5), and the fan assembly (7) and the air inlet (91) are located on the same horizontal plane.

9. The intelligent humidity control device for the internal environment of a cable branch box according to claim 1, characterized in that: The detection components (8) are respectively installed on the outside of the outer shell (1) and inside the box (9). The detection components (8) inside the box (9) are located at the bottom of the box (9) and away from the air outlet (92).

10. The intelligent humidity control device for the internal environment of a cable branch box according to claim 1, characterized in that: The heating component (10) is installed inside the housing (9) and is located below the air inlet (91). The heating component (10) is controlled by a controller on the housing (1).

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