Temperature control type reactive power compensation box

Abstract

The utility model relates to the technical field of reactive compensation equipment, concretely to a temperature control type reactive compensation box, including the box, the front side of box is hinged with the box door through the hinge, is equipped with temperature sensor in the rear side of box door, is equipped with controller in the front side of box door, is equipped with the air inlet hole in the bottom of box, is equipped with the initiative air intake component at the air inlet hole, and the initiative air intake component includes the rectangular air intake pipeline, is equipped with first fan and two dust filter screen boards in the rectangular air intake pipeline, is equipped with the first baffle in the box, is equipped with two rectangular air guide holes in the top of first baffle, is vertically equipped with airflow distribution pipe in two rectangular air guide holes, is equipped with a plurality of strip air outlet holes in the opposite side of two airflow distribution pipes, is equipped with the air outlet hole in the left and right sides of box, is equipped with the dustproof screen in the air outlet hole. The temperature control type reactive compensation box is linked with the controller through temperature sensor, realizes the intelligent start -stop and power regulation of fan, and the fan speed is automatically closed or reduced under low temperature or normal temperature.

Description

Technical Field

[0001] This utility model relates to the technical field of reactive power compensation equipment, specifically a temperature-controlled reactive power compensation box. Background Technology

[0002] A reactive power compensation box is a device used in power systems to improve the power factor, enhance power quality, and reduce energy loss. Reactive power refers to the portion of electrical energy that is not effectively converted into active power for the load due to the phase difference between current and voltage in alternating current caused by inductance and capacitance. Reactive power compensation boxes regulate reactive power in the system by installing components such as capacitors and reactors, balancing the phase relationship between current and voltage, thereby improving the efficiency of the power system and ensuring the stability and reliability of power supply.

[0003] Patent CN219801502U discloses a temperature-controlled, stable reactive power compensation device, including capacitors, reactors, and a cooling assembly. A circuit connects the capacitors and reactors. The cooling assembly includes a guide rail with a mounting plate on it, and a fan mounted on the mounting plate. This technical solution installs the guide rail based on the existing arrangement of capacitors and reactors within compensation devices. By first installing one mounting plate before connecting the circuit between the capacitors and reactors, the installation of the second mounting plate does not affect the circuit and secures the circuit. Simultaneously, the fans on both mounting plates cool each capacitor and reactor, preventing the stacking of capacitors and reactors from affecting the cooling effect.

[0004] The existing technology described above uses a motor on a mounting plate to drive blower blades, generating airflow within the enclosure for heat dissipation. However, this motor is constantly running and cannot intelligently start and stop based on changes in the internal temperature of the enclosure. This results in the motor continuing to operate even at low or normal temperatures, causing unnecessary energy consumption. Furthermore, the existing enclosure lacks an effective exhaust mechanism; the side ventilation holes allow both intake and exhaust air to flow through the same opening, easily leading to turbulent airflow inside the enclosure and hindering the formation of an effective cooling channel. This uncoordinated airflow reduces heat dissipation, and particulate matter from the outside air can also enter the enclosure through the ventilation holes, adversely affecting the normal operation of capacitors and reactors. Therefore, we propose a temperature-controlled reactive power compensation box to improve its heat dissipation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a temperature-controlled reactive power compensation box to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A temperature-controlled reactive power compensation box includes a box body, inside which are installed components such as switches, contactors, fuses, reactors, and capacitors for reactive power compensation. A door is hinged to the front of the box body for closing the box and facilitating maintenance of the internal components. Figure 1 and Figure 3 As shown, a temperature sensor is provided in the upper middle part of the rear side of the cabinet door. The temperature sensor is used to monitor the internal temperature of the cabinet in real time and feed it back to the controller. A controller is provided in the front side of the cabinet door. The controller is used to receive the temperature signal and control the start and stop of the fan to realize intelligent temperature control.

[0008] Combination Figure 4 and Figure 5 As shown, the bottom of the housing has an air inlet, which is the main channel for external cold air to enter the housing. An active air intake assembly is provided at the air inlet. The active air intake assembly is used to filter the air and actively deliver cold air into the housing. The active air intake assembly includes a rectangular air intake pipe that is bolted to the bottom of the housing. The rectangular air intake pipe provides structural support for air filtration and fan installation. A partition plate is provided inside the rectangular air intake pipe near the top. The partition plate is used to separate the fan installation area from the filter area and guide the airflow vertically upward. A hole is provided in the middle of the top of the partition plate to allow airflow to pass through, ensuring the smooth operation of the first fan. The first fan is located at the top of the partition plate, with the air outlet of the first fan facing upward. The first fan is used to forcibly draw in external air according to the temperature signal to enhance heat dissipation efficiency. Two dust filter plates are arranged vertically inside the rectangular air intake pipe near the bottom. The dust filter plates are used to filter dust particles in the air in stages to protect the internal components.

[0009] like Figure 4 As shown, a first partition is provided inside the box near the bottom. The first partition is used to separate the bottom of the box from the equipment area and form a cold air distribution layer. Rectangular air guide holes are provided at the top of the first partition near the left and right sides. The rectangular air guide holes guide cold air into the airflow distribution pipe to achieve uniform heat dissipation. Airflow distribution pipes are vertically provided at both of the rectangular air guide holes. The airflow distribution pipes are used to directionally deliver cold air to the dense area of ​​heat-generating elements. Multiple strip-shaped air outlets are provided on the opposite sides of the two airflow distribution pipes, which are arranged vertically and vertically at equal intervals. The strip-shaped air outlets allow cold air to cover components such as capacitors and reactors at a uniform flow rate. Exhaust holes are provided on the left and right sides of the box near the top. The exhaust holes are used to discharge hot air from the box and form a complete heat dissipation air duct. A dustproof net is provided inside the exhaust hole to prevent external particles from flowing back into the box through the exhaust hole.

[0010] Preferred, such as Figure 5As shown, the filter mesh size of the lower filter mesh is larger than that of the upper filter mesh, adopting a double-layer filter structure. The lower filter mesh first intercepts large particles, and the upper filter mesh further filters fine dust. The filter mesh is provided with a handle on the front side, which makes it easy for users to quickly disassemble and clean the filter mesh. The front side of the housing has a strip hole for the filter mesh to pass through, which provides operating space for the installation and replacement of the filter mesh.

[0011] A rubber ring is provided on the outer side and near the front of the dust filter plate. The outer wall of the rubber ring is tightly fitted with the inner wall of the strip hole. The rubber ring seals the gap between the strip hole and the dust filter plate to prevent dust from seeping in.

[0012] Two U-shaped positioning side plates are provided on the left and right sides of the inner wall of the rectangular air intake pipe, near the bottom. The dust filter plate is located between the two U-shaped positioning side plates that are arranged opposite each other. The U-shaped positioning side plates are fixed to the dust filter plate by a snap-fit ​​structure to ensure stable installation of the filter.

[0013] Preferred, such as Figure 4 As shown, a second partition is provided inside the box and near the top. The second partition is used to separate the top of the box from the equipment area and guide hot air to flow to the exhaust port. A circular air guide hole is provided in the middle of the bottom of the second partition. The circular air guide hole allows hot air to rise to the top of the second partition, so that the second fan can discharge it in a concentrated manner.

[0014] The second partition is provided with a partition vertical plate at the top and near the left and right sides. The partition vertical plate is used to isolate the exhaust paths on the left and right sides and fix the second fan. The middle of the side of the partition vertical plate is provided with a hole for airflow to pass through, so as to ensure that the second fan works smoothly. The middle of the opposite side of the two partition vertical plates is provided with a second fan. The air outlet of the two second fans faces the two exhaust holes respectively. The second fan is used to force the hot air in the box to be discharged, and forms a directional heat dissipation air duct with the first fan.

[0015] The temperature sensor, the first fan, and the second fan are electrically connected to the controller via wires and are powered by an external power source. The controller adjusts the start and stop of the two fans according to the temperature sensor signal to achieve precise temperature control.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This temperature-controlled reactive power compensation box, through the linkage of temperature sensor and controller, realizes intelligent start-stop and power regulation of fan. It automatically shuts down or reduces fan speed at low or normal temperatures, avoiding energy waste caused by continuous fan operation in traditional equipment, significantly reducing operating energy consumption, and extending fan service life.

[0018] 2. This temperature-controlled reactive power compensation box adopts an active air intake component combined with an airflow distribution pipe to evenly cover the heat-generating components such as capacitors and reactors with external cold air through strip-shaped air outlets. Combined with the forced exhaust design at the top, it forms a directional airflow channel of "cold air in at the bottom and hot air out at the top", which completely solves the problem of low heat dissipation efficiency caused by the turbulent airflow of traditional heat dissipation holes and ensures stable operation of the equipment in high-temperature environments.

[0019] 3. This temperature-controlled reactive power compensation box uses a double-layer dust filter plate for graded filtration, combined with the dual protection of the exhaust hole dustproof net, to effectively prevent external dust from entering the box, avoid the accumulation of particulate matter from damaging components such as capacitors and reactors, and extend the overall life of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the box body in the open state of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the box body in this utility model;

[0024] Figure 5 This is an exploded structural diagram of the active air intake component in this utility model;

[0025] In the diagram: 100, housing; 110, first partition; 111, rectangular air vent; 120, second partition; 121, circular air vent; 122, vertical partition plate; 130, air inlet; 140, exhaust outlet; 200, door; 300, active air intake assembly; 310, rectangular air intake pipe; 311, strip-shaped hole; 320, horizontal partition plate; 330, first fan; 340, dust filter plate; 341, handle; 342, rubber ring; 350, U-shaped positioning side plate; 400, airflow distribution pipe; 410, strip-shaped air outlet; 500, second fan; 600, temperature sensor; 700, controller; 800, dustproof net. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution:

[0029] A temperature-controlled reactive power compensation box includes a box body 100. The box body 100 houses components such as switches, contactors, fuses, reactors, and capacitors for reactive power compensation. A door 200 is hinged to the front of the box body 100. The door 200 is used to close the box body 100 and facilitates maintenance of the internal components. Figure 1 and Figure 3 As shown, a temperature sensor 600 is provided in the upper middle part of the rear side of the door 200. The temperature sensor 600 is used to monitor the internal temperature of the cabinet 100 in real time and feed it back to the controller 700. A controller 700 is provided in the front side of the door 200. The controller 700 is used to receive temperature signals and control the start and stop of the fan to realize intelligent temperature control.

[0030] Combination Figure 4 and Figure 5 As shown, an air inlet 130 is provided at the bottom of the housing 100. The air inlet 130 is the main channel for external cold air to enter the housing 100. An active air intake assembly 300 is provided at the air inlet 130. The active air intake assembly 300 is used to filter air and actively deliver cold air into the housing 100. The active air intake assembly 300 includes a rectangular air intake pipe 310 that is bolted to the bottom of the housing 100. The rectangular air intake pipe 310 provides structural support for air filtration and fan installation. A partition plate 320 is provided inside the rectangular air intake pipe 310 and near the top. The partition plate 320 is used for... The partition plate 320 is divided into a fan installation area and a filter area, and guides the airflow to flow vertically upward. A hole is opened in the middle of the top of the partition plate 320 to allow the airflow to pass through, so as to ensure the smooth operation of the first fan 330. The first fan 330 is installed at the top of the partition plate 320, and the air outlet of the first fan 330 is set upward. The first fan 330 is used to force the intake of external air according to the temperature signal to enhance the heat dissipation efficiency. Two dust filter plates 340 are arranged vertically inside the rectangular air intake pipe 310 and near the bottom. The dust filter plates 340 are used to filter dust particles in the air in stages to protect the internal components.

[0031] like Figure 4 As shown, a first partition 110 is provided inside the housing 100 near the bottom. The first partition 110 is used to separate the bottom of the housing 100 from the equipment area and form a cold air distribution layer. Rectangular air guide holes 111 are provided at the top of the first partition 110 near the left and right sides. The rectangular air guide holes 111 guide cold air into the airflow distribution pipe 400 to achieve uniform heat dissipation. Airflow distribution pipes 400 are vertically provided at both rectangular air guide holes 111. The airflow distribution pipes 400 are used to directionally deliver cold air to the area with dense heat-generating elements. Multiple strip-shaped air outlets 410 arranged at equal intervals on opposite sides of the two air distribution pipes 400. The strip-shaped air outlets 410 allow cold air to cover components such as capacitors and reactors at a uniform flow rate. Exhaust holes 140 are provided on the left and right sides of the enclosure 100 near the top. The exhaust holes 140 are used to exhaust hot air inside the enclosure 100 to form a complete heat dissipation air duct. A dustproof net 800 is provided inside the exhaust hole 140 to prevent external particles from flowing back into the enclosure 100 through the exhaust hole 140.

[0032] In this embodiment, as Figure 5 As shown, the filter hole size of the lower dust filter plate 340 is larger than that of the upper dust filter plate 340, adopting a double-layer filter structure. The lower dust filter plate 340 first intercepts large particles, and the upper dust filter plate 340 further filters fine dust. A handle 341 is provided on the front side of the dust filter plate 340, which facilitates users to quickly disassemble and clean the dust filter plate 340. A strip hole 311 is provided on the front side of the housing 100 for the dust filter plate 340 to pass through, which provides operating space for the installation and replacement of the dust filter plate 340.

[0033] A rubber ring 342 is provided on the outer side of the dust filter plate 340 and near the front side. The outer wall of the rubber ring 342 is tightly fitted with the inner wall of the strip hole 311. The rubber ring 342 seals the gap between the strip hole 311 and the dust filter plate 340 to prevent dust from seeping in.

[0034] Two U-shaped positioning side plates 350 arranged vertically are provided on both the left and right sides of the inner wall of the rectangular air intake pipe 310 near the bottom. The dust filter plate 340 is located between the two U-shaped positioning side plates 350 arranged opposite each other. The U-shaped positioning side plates 350 fix the dust filter plate 340 through a snap-fit ​​structure to ensure stable installation of the filter.

[0035] Specifically, such as Figure 4As shown, a second partition 120 is provided inside the housing 100 and near the top. The second partition 120 is used to separate the top of the housing 100 from the equipment area and guide hot air to flow to the exhaust port 140. A circular air guide hole 121 is provided in the middle of the bottom of the second partition 120. The circular air guide hole 121 allows hot air to rise above the second partition 120, so that the second fan 500 can discharge it in a concentrated manner.

[0036] The top of the second partition 120 and near the left and right sides are provided with partition vertical plates 122. The partition vertical plates 122 are used to isolate the exhaust paths on the left and right sides and fix the second fan 500. The middle of the side of the partition vertical plate 122 is provided with a hole for airflow to pass through, so as to ensure that the second fan 500 works smoothly. The middle of the opposite side of the two partition vertical plates 122 is provided with a second fan 500. The air outlet of the two second fans 500 is respectively facing the two exhaust holes 140. The second fan 500 is used to force the hot air in the box 100 to be discharged, and cooperates with the first fan 330 to form a directional heat dissipation air duct.

[0037] Temperature sensor 600, first fan 330 and second fan 500 are electrically connected to controller 700 through wires and are powered by an external power source. Controller 700 adjusts the start and stop of the two fans according to the signal from temperature sensor 600 to achieve precise temperature control.

[0038] The controller 700 can preset temperature threshold ranges (e.g., 45-50℃) and corresponding fan control strategies:

[0039] 1. Low temperature state: When the temperature sensor 600 detects that the temperature inside the enclosure 100 is ≤45℃, the controller 700 shuts down the first fan 330 and the second fan 500 to reduce energy consumption;

[0040] 2. Normal temperature rise: When the temperature is between 45-50℃, the controller 700 starts the first fan 330 at 50% power and intermittently starts the second fan 500, such as working for 10 minutes and stopping for 5 minutes, to balance heat dissipation;

[0041] 3. High Temperature Warning: When the temperature is >50℃, the controller 700 controls the first fan 330 and the second fan 500 to run continuously at full power, and at the same time issues an audible and visual warning through the buzzer alarm module to remind the user to check the equipment load.

[0042] In addition, the controller 700 has an integrated A / D conversion module on its circuit board, which is used to convert the analog signal from the temperature sensor 600 into a digital signal. The controller 700's panel is equipped with an LCD screen and manual control buttons. The LCD screen is used to display the temperature, fan status and fault codes in real time, and the manual control buttons allow users to force start / stop the fan or reset the system.

[0043] In this embodiment, the temperature-controlled reactive power compensation box monitors the internal temperature of the box 100 in real time via the temperature sensor 600 on the box door 200 and transmits the signal to the controller 700. The controller 700 automatically adjusts the start / stop status and operating power of the first fan 330 and the second fan 500 according to a preset temperature threshold range (e.g., 45-50℃). When the temperature inside the box 100 rises, the first fan 330 in the active air intake assembly 300 starts, drawing in external air through the rectangular air intake pipe 310. The air passes through the lower dust filter plate 340 and the upper dust filter plate 340 in sequence for graded filtration. Then, the cold air passes through the air guide holes of the partition plate 320 and enters the bottom of the box 100. The airflow enters the air distribution pipe 4 through the rectangular air guide holes 111 on the first partition plate 110. The air is evenly distributed to heat-generating components such as capacitors and reactors through the strip-shaped air outlet 410. At the same time, the second fan 500 at the top of the second partition 120 starts, drawing in hot air through the circular air guide hole 121 and accelerating its discharge to the exhaust hole 140 through the air guide hole of the partition vertical plate 122, forming a directional heat dissipation air duct from the bottom air inlet 130 of the housing 100 to the top exhaust hole 140, achieving efficient cooling. When maintenance is required, the user can pull out the dust filter plate 340 through the strip-shaped hole 311 via the handle 341 for cleaning or replacement. The rubber ring 342 ensures that dust does not seep into the housing 100 during disassembly and assembly. The LCD screen of the controller 700 displays the temperature and fan status in real time. The user can manually control the buttons to force the fan to start or stop or reset the system to ensure stable operation of the equipment.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A temperature controlled type of a reactive power compensation box comprising a box body (100), a front side of the box body (100) is hinged with a box door (200) through a hinge, characterized in that: A temperature sensor (600) is provided on the upper middle part of the rear side of the door (200), and a controller (700) is provided on the front side of the door (200). An air inlet (130) is provided at the bottom of the box body (100), and an active air intake assembly (300) is provided at the air inlet (130). The active air intake assembly (300) includes a rectangular air intake pipe (310) that is bolted to the bottom of the box body (100). A partition plate (320) is provided inside the rectangular air intake pipe (310) and near the top. A first fan (330) is provided at the top of the partition plate (320). The box (100) is provided with two dust filter plates (340) arranged vertically. A first partition (110) is provided inside the box (100) near the bottom. A rectangular air guide hole (111) is provided at the top of the first partition (110) near the left and right sides. An air distribution pipe (400) is provided vertically at each of the two rectangular air guide holes (111). A plurality of strip-shaped air outlet holes (410) are provided on the opposite sides of the two air distribution pipes (400) arranged vertically and equidistantly. An exhaust hole (140) is provided on the left and right sides of the box (100) near the top. A dustproof net (800) is provided inside the exhaust hole (140).

2. The temperature controlled reactive compensation enclosure of claim 1, wherein: The filter hole size of the lower dust filter plate (340) is larger than that of the upper dust filter plate (340). The front side of the dust filter plate (340) is provided with a handle (341), and the front side of the box (100) is provided with a strip hole (311) for the dust filter plate (340) to pass through.

3. The temperature controlled reactive compensation enclosure of claim 2, wherein: A rubber ring (342) is provided on the outer side of the dust filter plate (340) and near the front side. The outer wall of the rubber ring (342) is tightly fitted with the inner wall of the strip hole (311).

4. The temperature-controlled reactive power compensation box according to claim 1, characterized in that: The rectangular air intake pipe (310) has two U-shaped positioning side plates (350) arranged vertically on both the left and right sides and near the bottom. The dust filter plate (340) is located between the two U-shaped positioning side plates (350) arranged opposite each other.

5. The temperature-controlled reactive power compensation box according to claim 1, characterized in that: The box (100) is provided with a second partition (120) near the top, and a circular air vent (121) is provided in the middle of the bottom of the second partition (120).

6. The temperature-controlled reactive power compensation box according to claim 5, characterized in that: The second partition (120) is provided with a partition vertical plate (122) at the top and near the left and right sides. The two partition vertical plates (122) are provided with a second fan (500) in the middle of the opposite sides. The air outlet of the two second fans (500) is respectively facing the two exhaust holes (140).

7. The temperature-controlled reactive power compensation box according to claim 6, characterized in that: The temperature sensor (600), the first fan (330), and the second fan (500) are electrically connected to the controller (700) via wires.

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