Power distribution terminal cabinet with dehumidification function
By using a sealing and dehumidification mechanism, moisture is prevented from entering the power distribution terminal cabinet, thus solving the problem of moisture damage to the equipment and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN SILIYAN ELECTRIC TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-06-23
AI Technical Summary
Existing power distribution terminal cabinets cannot effectively prevent moisture from entering in humid environments, leading to short circuits or rusting of internal equipment and affecting equipment lifespan.
It employs a sealing mechanism and a dehumidification mechanism. The sealing mechanism monitors the position of the sealing plate through an electric telescopic tube and a Hall sensor to prevent moisture from entering. The dehumidification mechanism expels moisture through a moisture-absorbing plate and a fan, and dynamically adjusts the dehumidification process in conjunction with a humidity sensor and a controller.
It effectively prevents moisture from entering the cabinet, extends the service life of the equipment, avoids equipment damage, and improves equipment reliability.
Smart Images

Figure CN224400941U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power distribution terminal cabinet technology, specifically a power distribution terminal cabinet with dehumidification function. Background Technology
[0002] Distribution automation remote terminals are a collective term for various remote monitoring and control units installed in medium-voltage distribution networks. They mainly include feeder terminals, substation terminals, and distribution transformer terminals, and are often simply referred to as distribution terminals. They utilize communication channels to perform data acquisition and control functions. Due to the importance of their internal equipment, existing distribution terminal cabinets need to have dehumidification functions when used in humid environments to reduce the possibility of short circuits or rusting of internal circuits and electronic components.
[0003] Patent CN217009929U discloses a power distribution terminal cabinet with dehumidification function. This cabinet uses a humidity sensor to detect humidity within the cabinet, transmits the humidity signal to the main body of the power distribution terminal, and then controls a fan to operate. The fan delivers air through a connecting pipe into an air duct, which then blows it out through an air outlet on the outer wall of the duct, thus dehumidifying the interior of the cabinet and keeping it dry. However, this dehumidification method has the potential to allow external moisture to enter the cabinet while internal moisture is being expelled, failing to reduce the negative impact of moisture on the equipment inside the cabinet, and thus limiting the lifespan of the terminal equipment. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this application provides a power distribution terminal cabinet with dehumidification function, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this application provides the following technical solution: a power distribution terminal cabinet with dehumidification function, comprising a fixing plate, an installation mechanism for fixing the terminal cabinet, and a cabinet door for preventing external objects from entering the terminal cabinet and affecting the normal use of the equipment. The right side of the installation mechanism is provided with a sealing mechanism for preventing external moisture from entering the terminal cabinet. The sealing mechanism includes a sealing plate and a rubber plate. The sealing plate is located below the right side of the installation mechanism, and the left side of the rubber plate is connected to the right side of the sealing plate. The installation mechanism is located in front of the fixing plate, and the right side of the cabinet door is hinged to the left side of the installation mechanism.
[0008] By adopting the above technical solution, the rubber plate connected by the sealing plate can be fitted to the right side of the movable cavity, avoiding the possibility of external moisture entering the cabinet and reducing the impact of moisture on the internal equipment of the cabinet.
[0009] Preferably, the sealing mechanism further includes a movable cavity and an electric telescopic tube. The movable cavity is located inside the lower right side of the mounting mechanism. The left side of the electric telescopic tube is connected to the left side of the inner wall of the movable cavity, and the right side of the electric telescopic tube is connected to the left side of the sealing plate. A Hall sensor is connected to the upper right side of the sealing plate.
[0010] By adopting the above technical solution, the electric telescopic tube in the movable cavity can be used to move the sealing plate, thereby switching between two different modes: the cabinet is closed and the air is circulated. Furthermore, a Hall sensor is used to monitor the displacement of the electric telescopic tube, and the Hall sensor sends the monitoring data to the controller to facilitate monitoring whether the sealing plate has moved into place.
[0011] Preferably, the fixing plate includes a rear plate and fixing holes, and extension plates are connected to both the left and right sides of the rear plate, with the fixing holes formed on the surface of the extension plates.
[0012] By adopting the above technical solution, the rear plate can be fixed by using the fixing holes in the extension plate connected to the rear plate and bolts, thereby enhancing the stability of the rear plate.
[0013] Preferably, the installation mechanism includes a cabinet and a placement slot. A movable cavity is opened at the lower inside of the right side of the cabinet. The left side of the cabinet is hinged to the right side of the cabinet door. A U-shaped frame is connected to the rear side of the cabinet. The U-shaped frame has slots on both the left and right sides of its inner wall. The placement slot is opened on the front side of the rear panel. The inner wall of the placement slot is in contact with the surface of the U-shaped frame. The left and right sides of the placement slot are in contact with the slots.
[0014] By adopting the above technical solution, the cabinet can be installed by using the U-shaped frame with the slot on the back of the cabinet and the placement slot to fit together. Furthermore, the fit between the left and right sides of the placement slot and the slot prevents the cabinet from shaking.
[0015] Preferably, the installation mechanism further includes a humidity sensor and a controller, wherein the humidity sensor is connected to the front left side of the inner wall of the cabinet, and the right side of the controller is connected to the upper right side of the cabinet.
[0016] By adopting the above technical solution, the temperature sensor value can be sent to the controller, and the controller can control the operation of the dehumidification mechanism and the sealing mechanism based on the received information.
[0017] Preferably, the cabinet side is provided with a dehumidification mechanism for expelling internal moisture. The dehumidification mechanism includes an air inlet and a mounting groove. The air inlet is located on the upper left side of the cabinet, and the mounting groove is located at the bottom of the inner wall of the air inlet. A rubber ring is provided in the mounting groove, and a moisture-absorbing plate is connected to the inner wall of the rubber ring.
[0018] By adopting the above technical solution, the rubber ring on the outside of the moisture-absorbing plate can be used to fit the mounting groove to prevent moisture from entering the cabinet through gaps, and the air inlet can be used to facilitate the entry of gas filtered by the moisture-absorbing plate into the cabinet.
[0019] Preferably, the dehumidification mechanism further includes a movable groove and a spring. The movable groove is located at the top of the inner wall of the air inlet. The top of the spring is connected to the top of the inner wall of the movable groove. A retaining plate is connected to the bottom of the spring. The bottom of the retaining plate is in contact with the top of the rubber ring. A driving plate is connected to the left side of the retaining plate.
[0020] By adopting the above technical solution, the spring force in the movable groove can be used to make the bottom of the fixed plate connected to the drive plate fit with the rubber ring, thereby fixing the position of the moisture-absorbing plate and preventing the moisture-absorbing plate from tilting.
[0021] Preferably, the dehumidification mechanism further includes an air outlet and a fan, the air outlet being located on the left and right sides of the movable cavity, and the fan being connected to the left side of the air outlet.
[0022] By adopting the above technical solution, the moisture inside the cabinet can be driven out through the air outlet by the fan, thereby achieving the purpose of dehumidification.
[0023] (III) Beneficial Effects
[0024] This application provides a power distribution terminal cabinet with dehumidification function. It has the following beneficial effects:
[0025] 1. This power distribution terminal cabinet with dehumidification function has a sealing mechanism. The extension of the electric telescopic tube moves the sealing plate to the right, and the rightward movement of the sealing plate moves the rubber plate to the right until it is in contact with the right side of the inner wall of the movable cavity. The Hall sensor sends the displacement data of the electric telescopic tube to the controller to ensure that the sealing status data is recorded in real time. This prevents external moisture from entering the cabinet through the air vent, reduces the damage of moisture to the equipment inside the power distribution cabinet, and extends the service life of the power distribution terminal equipment.
[0026] 2. This power distribution terminal cabinet with dehumidification function, by setting up a dehumidification mechanism, places the moisture-absorbing plate into the mounting groove at the bottom of the air inlet so that the rubber ring is in contact with the inner wall of the mounting groove. When the control of the moving plate is released, the fixed plate moves down and is in contact with the top of the rubber ring under the action of the spring in the movable groove. The fan in the air outlet starts to drive the moisture inside the cabinet out, and at the same time, it drives the outside air through the moisture-absorbing plate in the air inlet into the cabinet. This avoids the situation where the outside moisture enters the cabinet during the dehumidification process and makes it easy to replace the moisture-absorbing plate. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the external structure of this application from a top right view;
[0029] Figure 2 This is an enlarged schematic diagram of Part A of the structure of this application;
[0030] Figure 3 This is a schematic diagram of the external structure of this application from the rear, left, and bottom views;
[0031] Figure 4 This is a schematic diagram of the structural cross-section of the left-side top view portion of this application;
[0032] Figure 5 This is an enlarged schematic diagram of Part B of this application;
[0033] Figure 6 This is an enlarged schematic diagram of part C of this application;
[0034] Figure 7 This is an enlarged schematic diagram of part D of the structure of this application;
[0035] Figure 8 This is a schematic diagram of the closed mechanism structure viewed from the right side of this application.
[0036] In the diagram: 1. Fixed plate; 101. Rear plate; 102. Extension plate; 103. Fixing hole; 2. Mounting mechanism; 201. Cabinet body; 202. U-shaped frame; 203. Card slot; 204. Placement slot; 205. Humidity sensor; 206. Controller; 3. Cabinet door; 4. Dehumidification mechanism; 401. Air inlet; 402. Mounting slot; 403. Rubber ring; 404. Moisture-absorbing plate; 405. Moisture-moving slot; 406. Spring; 407. Fixing plate; 408. Moving plate; 409. Air outlet; 410. Fan; 5. Sealing mechanism; 501. Movable cavity; 502. Electric telescopic tube; 503. Sealing plate; 504. Rubber plate; 505. Hall sensor. Detailed Implementation
[0037] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0038] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0039] Reference Figure 4 , Figure 7 and Figure 8 This application provides a power distribution terminal cabinet, including a fixing plate 1, an installation mechanism 2 for fixing the terminal cabinet, and a cabinet door 3 for preventing external objects from entering the terminal cabinet and affecting the normal use of the equipment. A sealing mechanism 5 for preventing external moisture from entering the terminal cabinet is provided on the right side of the installation mechanism 2. The sealing mechanism 5 includes a sealing plate 503 and a rubber plate 504. The sealing plate 503 is located on the lower right side of the installation mechanism 2, and the left side of the rubber plate 504 is connected to the right side of the sealing plate 503. A movable cavity 501 is formed inside the lower right side of the installation mechanism 2. An electric telescopic tube 502 is connected to the left side of the inner wall of 501. The right side of the electric telescopic tube 502 is connected to the left side of the sealing plate 503. A Hall sensor 505 is connected to the upper right side of the sealing plate 503. The mounting mechanism 2 is set on the front side of the fixed plate 1. The right side of the cabinet door 3 is hinged to the left side of the mounting mechanism 2. When the electric telescopic tube 502 extends, it causes the sealing plate 503 to move to the right. When the sealing plate 503 moves to the right, it causes the rubber plate 504 to move to the right until it fits against the right side of the inner wall of the movable cavity 501. The Hall sensor 505 sends the displacement data of the electric telescopic tube 502 to the controller 206.
[0040] Reference Figure 1 and Figure 3 In one aspect of this embodiment, the fixing plate 1 includes a rear plate 101 and a fixing hole 103. Extension plates 102 are connected to both the left and right sides of the rear plate 101. The fixing hole 103 is opened on the surface of the extension plate 102. Bolts pass through the fixing hole 103 opened in the extension plate 102 and are threadedly connected to the wall to fix the rear plate 101.
[0041] Reference Figure 1 and Figure 2In one aspect of this embodiment, the installation mechanism 2 includes a cabinet 201 and a placement slot 204. A movable cavity 501 is formed in the lower right side interior of the cabinet 201. The left side of the cabinet 201 is hinged to the right side of the cabinet door 3. A U-shaped frame 202 is connected to the rear side of the cabinet 201. The U-shaped frame 202 is made of a material with thermal conductivity. Slots 203 are formed on both the left and right sides of the inner wall of the U-shaped frame 202. The placement slot 204 is located in front of the rear panel 101. The inner wall of the placement slot 204 is in contact with the surface of the U-shaped frame 202, and the left and right sides of the placement slot 204 are in contact with the slots 203. A [missing information - likely a device or component] is connected to the front left side of the inner wall of the cabinet 201. A humidity sensor 205 is connected to a controller 206 on the upper right side of the cabinet 201. The controller 206 integrates a PID algorithm and dynamically adjusts the speed of the fan 410 and the start-stop time ratio of the electric telescopic tube 502 according to the data from the humidity sensor 205. This causes the right side of the U-shaped frame 202 to be aligned with the upper inner wall of the placement slot 204, and the U-shaped frame 202 to be lowered until its bottom is aligned with the bottom of the placement slot 204. At the same time, the left and right sides of the placement slot 204 are aligned with the card slot 203. The controller 206 controls the operation of the dehumidification mechanism 4 and the sealing mechanism 5 according to the received data from the humidity sensor 205.
[0042] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7 In one aspect of this embodiment, a dehumidification mechanism 4 for discharging internal moisture is provided on the side of the cabinet 201. The dehumidification mechanism 4 includes an air inlet 401 and a mounting groove 402. The air inlet 401 is located on the upper left side of the cabinet 201, and the mounting groove 402 is located at the bottom of the inner wall of the air inlet 401. A rubber ring 403 is provided in the mounting groove 402, and a moisture-absorbing plate 404 is connected to the inner wall of the rubber ring 403. A movable groove 405 is provided at the top of the inner wall of the air inlet 401, and a spring 406 is connected to the top of the inner wall of the movable groove 405. A retaining plate 407 is connected to the bottom of the spring 406, and the bottom of the retaining plate 407 is in contact with the top of the rubber ring 403. 07 is connected to a drive plate 408 on the left side. Air vents 409 are opened on both the left and right sides of the movable cavity 501. A fan 410 is connected to the left side of the air vent 409. The moisture-absorbing plate 404 is placed into the mounting groove 402 at the bottom of the air inlet 401 so that the rubber ring 403 is in contact with the inner wall of the mounting groove 402. The control of the drive plate 408 is released. Under the action of the spring 406 in the movable groove 405, the fixing plate 407 moves down and is in contact with the top of the rubber ring 403. The fan 410 in the air vent 409 starts to drive the moisture inside the cabinet 201 to be discharged. At the same time, it drives the outside air to pass through the moisture-absorbing plate 404 in the air inlet 401 and enter the cabinet 201.
[0043] All electrical devices in this plan are powered by an external power source.
[0044] Working principle: During use, bolts are threaded through the fixing holes 103 of the extension plate 102 and connected to the wall to fix the rear plate 101. The U-shaped frame 202 is lowered until the bottom of the U-shaped frame 202 is in contact with the bottom of the placement groove 204. At the same time, the left and right sides of the placement groove 204 are in contact with the slots 203. The controller 206 controls the operation of the dehumidification mechanism 4 and the sealing mechanism 5 according to the data received from the humidity sensor 205. The moisture-absorbing plate 404 is placed into the mounting groove 402 at the bottom of the air inlet 401 so that the rubber ring 403 is in contact with the inner wall of the mounting groove 402. The control of the driving plate 408 is released, and the plate is fixed under the action of the spring 406 in the movable groove 405. 407 moves down and fits against the top of the rubber ring 403. After the controller 206 receives the data detected by the humidity sensor 205 and the target value is reached, it controls the electric telescopic tube 502 to move and shorten, causing the sealing plate 503 to move to the left. The leftward movement of the sealing plate 503 causes the rubber plate 504 to move to the left until it is no longer in contact with the right side of the inner wall of the movable cavity 501. The Hall sensor 505 sends the displacement data of the electric telescopic tube 502 to the controller 206. The fan 410 in the air outlet 409 starts and drives the moisture inside the cabinet 201 to be discharged through the air outlet 409 and the movable cavity 501. At the same time, it drives the outside air to pass through the moisture-absorbing plate 404 in the air inlet 401 and enter the interior of the cabinet 201.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.
[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A power distribution terminal cabinet with dehumidification function, comprising a fixing plate (1), an installation mechanism (2) for fixing the terminal cabinet, and a cabinet door (3) for preventing external objects from entering the terminal cabinet and affecting the normal use of the equipment, characterized in that: The right side of the installation mechanism (2) is provided with a sealing mechanism (5) to prevent external moisture from entering the terminal cabinet. The sealing mechanism (5) includes a sealing plate (503) and a rubber plate (504). The sealing plate (503) is located below the right side of the installation mechanism (2). The left side of the rubber plate (504) is connected to the right side of the sealing plate (503). The installation mechanism (2) is located in front of the fixing plate (1). The right side of the cabinet door (3) is hinged to the left side of the installation mechanism (2).
2. A power distribution terminal cabinet with dehumidification function according to claim 1, characterized in that: The sealing mechanism (5) also includes a movable cavity (501) and an electric telescopic tube (502). The movable cavity (501) is located inside the lower right side of the mounting mechanism (2). The left side of the electric telescopic tube (502) is connected to the left side of the inner wall of the movable cavity (501), and the right side of the electric telescopic tube (502) is connected to the left side of the sealing plate (503). A Hall sensor (505) is connected to the upper right side of the sealing plate (503).
3. A power distribution terminal cabinet with dehumidification function according to claim 1, characterized in that: The fixing plate (1) includes a rear plate (101) and a fixing hole (103). The left and right sides of the rear plate (101) are connected to extension plates (102), and the fixing hole (103) is opened on the surface of the extension plate (102).
4. A power distribution terminal cabinet with dehumidification function according to claim 2, characterized in that: The installation mechanism (2) includes a cabinet (201) and a placement slot (204). A movable cavity (501) is opened on the lower right side of the cabinet (201). The left side of the cabinet (201) is hinged to the right side of the cabinet door (3). A U-shaped frame (202) is connected to the rear side of the cabinet (201). The left and right sides of the inner wall of the U-shaped frame (202) are provided with slots (203). The placement slot (204) is opened on the front side of the back panel (101). The inner wall of the placement slot (204) is in contact with the surface of the U-shaped frame (202). The left and right sides of the placement slot (204) are in contact with the slots (203).
5. A power distribution terminal cabinet with dehumidification function according to claim 4, characterized in that: The installation mechanism (2) also includes a humidity sensor (205) and a controller (206). The humidity sensor (205) is connected to the front left side of the inner wall of the cabinet (201), and the right side of the controller (206) is connected to the upper right side of the cabinet (201).
6. A power distribution terminal cabinet with dehumidification function according to claim 5, characterized in that: The cabinet (201) is provided with a dehumidification mechanism (4) for discharging internal moisture on its side. The dehumidification mechanism (4) includes an air inlet (401) and a mounting groove (402). The air inlet (401) is located on the upper left side of the cabinet (201). The mounting groove (402) is located at the bottom of the inner wall of the air inlet (401). A rubber ring (403) is provided in the mounting groove (402). A moisture-absorbing plate (404) is connected to the inner wall of the rubber ring (403).
7. A power distribution terminal cabinet with dehumidification function according to claim 6, characterized in that: The dehumidification mechanism (4) also includes a movable groove (405) and a spring (406). The movable groove (405) is opened on the top of the inner wall of the air inlet (401). The top of the spring (406) is connected to the top of the inner wall of the movable groove (405). A retaining plate (407) is connected to the bottom of the spring (406). The bottom of the retaining plate (407) is in contact with the top of the rubber ring (403). A driving plate (408) is connected to the left side of the retaining plate (407).
8. A power distribution terminal cabinet with dehumidification function according to claim 7, characterized in that: The dehumidification mechanism (4) also includes an air outlet (409) and a fan (410). The air outlet (409) is located on the left and right sides of the movable cavity (501), and the fan (410) is connected to the left side of the air outlet (409).