Intelligent capacitor assembly box body with safety protection function
By introducing exhaust and intake fan systems, sensor components, and controllers into the intelligent capacitor assembly enclosure, the problem of heat accumulation was solved, enabling rapid heat dissipation and safety monitoring, and improving the safety protection capability of the capacitor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU COMPEST TECHNOLOGY CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-04-21
AI Technical Summary
Existing smart capacitor assembly enclosures lack safety protection features, leading to heat buildup that may damage electrical components and cause fires.
An intelligent capacitor assembly box with an exhaust and intake fan system, sensor components and a controller was designed. The fan system regulates airflow, the sensors monitor temperature and smoke, and the controller enables timely alarm and heat dissipation control.
It enables rapid heat dissipation and safety monitoring of intelligent capacitors, timely prevention of fire hazards, and improves safety and reliability.
Smart Images

Figure CN224153816U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intelligent capacitor technology, and in particular to an intelligent capacitor assembly box with safety protection function. Background Technology
[0002] A smart capacitor is a power device that integrates advanced technologies such as modern measurement and control, power electronics, network communication, and automatic control. It is mainly used for low-voltage reactive power compensation. It generally consists of a box and electrical components inside the box.
[0003] When a smart capacitor is in use, current is continuously passed through its internal electrical components. This causes the components to generate heat over time. This heat accumulates inside the capacitor, which can easily lead to overheating and damage to the components. In more serious cases, it can even cause a fire.
[0004] Therefore, a smart capacitor assembly box with safety protection function is proposed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing intelligent capacitor assembly boxes, which lack safety protection functions and have insufficient protective performance, and to propose an intelligent capacitor assembly box with safety protection functions.
[0006] In view of this, the present invention provides an intelligent capacitor assembly box with safety protection function, including a box, which is a shell with an opening at the top, and a top cover is detachably installed on the top of the box;
[0007] A support base is provided at the lower end of the box. The corners of the support base are fixed to the box body by connecting brackets. A capacitor element is installed on the top of the support base.
[0008] A support plate is installed on the top of the box, and several spaced through slots are opened on the support plate. Exhaust fans are installed in the through slots.
[0009] Above each exhaust fan is a ring seat, which is fixed to a support plate. A wide-mouthed, downward-facing conical cover is coaxially mounted on the top of the ring seat, and an exhaust pipe is connected to the top of the conical cover. A sensor assembly is installed on the inner wall of the exhaust pipe.
[0010] A baffle plate is installed at the bottom inside the top cover. The baffle plate has a "V" shaped cross-section, and its bottom corresponds to the air outlet pipe. Multiple air outlets are arranged at intervals on both sides of the bottom of the top cover.
[0011] This utility model also includes a controller, which is fixed on the inner wall of the top cover. The exhaust fan and sensor assembly are connected to the controller via wires. An alarm is installed on the top of the top cover and is connected to the controller via wires.
[0012] Preferably, the capacitor element includes a power capacitor and a series reactor, both of which are fixed on the support base and are connected to the controller via wires.
[0013] Preferably, the sensor assembly includes a temperature sensor and a smoke sensor.
[0014] Preferably, support legs are installed at both ends of the bottom of the enclosure, and several air intake fans are installed at intervals on the bottom of the enclosure. The air intake fans are connected to the controller via wires.
[0015] Preferably, an arc-shaped cut surface is provided along the bottom edge of the support.
[0016] Preferably, the air intake fans are all installed inside the fixed frame, and the fixed frame is fixed to the housing. The fixed frame is a metal frame, and a dustproof net is provided below the fixed frame. The edges of the dustproof net are magnetically attached to the fixed frame.
[0017] The top cover has frames on both sides, and the front view of the air outlet is located inside the frame. The frame is made of metal, and the top cover also has a dustproof mesh, which is magnetically attached to the frame at the edge.
[0018] Preferably, a circuit breaker, a touch display, and a lifting handle are also provided on the top of the cover, and the circuit breaker and the touch display are connected to the controller via wires.
[0019] Preferably, an inlet and outlet are provided on one side of the box, and an opening and closing door can be detachably installed on the inlet and outlet.
[0020] Compared with the prior art, this utility model provides an intelligent capacitor assembly box with safety protection function, which has the following beneficial effects:
[0021] 1. This utility model, through the operation of the exhaust fan, can guide the air around the capacitor element into the exhaust duct, allowing the sensor component to fully contact the air inside the intelligent capacitor assembly box, and monitor the air temperature and other conditions in a timely manner, so as to provide faster feedback and alarm for safety hazards, thereby achieving a faster and more timely safety protection for the intelligent capacitor.
[0022] 2. By operating the intake fan, this utility model can accelerate the airflow rate from the intelligent capacitor assembly box towards the exhaust duct, which can not only dissipate heat from the capacitor components, but also further improve the contact rate between the air and the sensor components. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;
[0025] Figure 3 This is a schematic diagram of the bottom structure of the box body of this utility model;
[0026] Figure 4 This is a cross-sectional side view of the present invention.
[0027] In the diagram: 1. Housing; 2. Support base; 3. Arc-shaped section; 4. Power capacitor; 5. Series reactor; 6. Support plate; 7. Exhaust fan; 8. Intake fan; 9. Fixed frame; 10. Through slot; 11. Top cover; 12. Guide plate; 13. Air outlet; 14. Frame; 15. Annular seat; 16. Conical cover; 17. Air outlet duct; 18. Sensor assembly; 19. Controller; 20. Alarm; 21. Touch screen display; 22. Circuit breaker; 23. Support leg; 24. Lifting handle; 25. Inlet / outlet; 26. Opening / closing door. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0030] Please see Figures 1 to 4 A smart capacitor assembly box with safety protection function includes a box 1, which is a shell with an opening at the top, and a top cover 11 is detachably installed on the top of the box 1.
[0031] like Figure 1 and Figure 3As shown, support legs 23 are installed at both ends of the bottom of the box 1, so that there is a gap between the box 1 and the support surface when it is placed. Several air intake fans 8 are installed at intervals on the bottom of the box 1, and the operation of the air intake fans 8 allows outside air to enter the box 1.
[0032] Specifically, the air intake fan 8 is installed inside the fixed frame 9, and the fixed frame 9 is fixed to the box 1. The fixed frame 9 is a metal frame. A dustproof net is installed below the fixed frame 9. The edge of the dustproof net is magnetically attached to the fixed frame 9 to remove dust from the air entering the box 1 and prevent a large amount of dust from entering the box 1. The magnetic installation of the dustproof net also makes it easy to disassemble and clean the dustproof net.
[0033] A support base 2 is provided at the lower end of the housing 1. The corners of the support base 2 are fixed to the housing 1 by connecting brackets. Capacitor elements are installed on the top of the support base 2. The capacitor elements include a power capacitor 4 and a series reactor 5. The power capacitor 4 and the series reactor 5 are fixed on the support base 2. In actual use, the power capacitor 4 and the series reactor 5 can be detached and installed on the support base 2.
[0034] Furthermore, to allow the air entering the housing 1 from the intake fan 8 to flow upwards more effectively, an arc-shaped cut surface 3 is provided along the bottom edge of the support base 2. This guides the air that comes into contact with the bottom surface of the support base 2, allowing the air to flow upwards more quickly along the arc-shaped cut surface 3 after contacting the bottom surface of the support base 2. In actual use, the upward-flowing air will come into contact with the outer surface of the capacitor element, thereby carrying away the heat generated by the capacitor element during operation and playing a heat dissipation role for the capacitor element.
[0035] It should be noted that, in order to facilitate the maintenance and repair of the capacitor components, an inlet and outlet 25 is provided on one side of the enclosure 1, and an opening and closing door 26 is detachably installed on the inlet and outlet 25.
[0036] As the hot air continues to rise, such as Figure 3 and Figure 4 As shown, a support plate 6 is installed on the top of the housing 1. Several slots 10 are arranged at intervals on the support plate 6. An exhaust fan 7 is installed in the slots 10. Under the operation of the exhaust fan 7, the rising hot air will be guided by the exhaust fan 7 and sent to the top of the support plate 6.
[0037] Above each exhaust fan 7 is an annular seat 15, which is fixed to the support plate 6. A wide-mouthed, downward-facing conical cover 16 is coaxially mounted on the top of the annular seat 15, and an air outlet duct 17 is connected to the top of the conical cover 16. A sensor assembly 18 is installed on the inner wall of the air outlet duct 17. The sensor assembly 18 includes a temperature sensor and a smoke sensor. As hot air passes through the exhaust fan 7, it is concentrated and sent into the air outlet duct 17. Due to the action of the conical cover 16, the hot air is compressed and concentrated and comes into full contact with the sensor assembly 18, thereby enabling more accurate detection of the temperature and other conditions of the hot air.
[0038] like Figure 1 and Figure 4 As shown, a guide plate 12 is installed at the bottom inside the top cover 11. The cross-section of the guide plate 12 is "V" shaped, and the bottom of the guide plate 12 corresponds to the air outlet 17. Multiple air outlets 13 are arranged at intervals on both sides of the bottom of the top cover 11. The air flowing out from the air outlet 17 will come into contact with the guide plate 12 and be guided by the guide plate 12 to the air outlet 13 for discharge. In this way, the hot air inside the box 1 can be discharged to the outside of the box 1, preventing the hot air inside the box 1 from accumulating and affecting the normal operation of the capacitor components.
[0039] Specifically, there are frame frames 14 on both sides of the top cover 11. The frontal projection of the air outlet 13 is located inside the frame frame 14, and the frame frame 14 is made of metal. The top cover 11 is also equipped with a dustproof net. The edge of the dustproof net is magnetically attached to the frame frame 14 to prevent dust from falling into the top cover 11 from the air outlet 13. The magnetic installation method also makes it easy to remove the dustproof net.
[0040] This utility model also includes a controller 19, which is fixed on the inner wall of the top cover 11. The power capacitor 4, series reactor 5, exhaust fan 7, sensor assembly 18, and intake fan 8 are all connected to the controller 19 via wires. An alarm 20 is installed on the top of the top cover 11 and is connected to the controller 19 via wires. When the sensor assembly 18 detects that the hot air inside the enclosure 1 is too hot or smoke is present, the sensor assembly 18 will feed the information back to the controller 19, thereby triggering the alarm 20 to alert the staff. In actual use, the controller 19 is a PLC logic controller, control motherboard, and control host. During the process of the sensor assembly 18 detecting the hot air temperature, it will feed the detected air temperature back to the controller 19. The controller 19 will then determine the temperature inside the enclosure 1 and control the fan speed of the intake fan 8 and exhaust fan 7 accordingly, so as to better dissipate heat and cool down the enclosure 1, and also save energy.
[0041] It should be noted that a circuit breaker 22, a touch display 21, and a lifting handle 24 are also provided on the top of the top cover 11. The circuit breaker 22 and the touch display 21 are both connected to the controller 19 through wires to manually control the operation of the capacitor components.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A smart capacitor assembly box with security protection function, characterized in that: Includes a housing (1), which is a shell with an opening at the top, and a top cover (11) is detachably installed on the top of the housing (1); A support seat (2) is provided at the lower end of the housing (1). The corners of the support seat (2) are fixed to the housing (1) by a connecting frame. A capacitor element is installed on the top of the support seat (2). A support plate (6) is installed on the top of the box (1), and several slots (10) are opened on the support plate (6) at intervals. An exhaust fan (7) is installed in the slots (10). An annular seat (15) is provided above each exhaust fan (7). The annular seat (15) is fixed on the support plate (6). A wide-mouthed, downward-facing conical cover (16) is coaxially installed on the top of the annular seat (15). An air outlet pipe (17) is connected to the top of the conical cover (16). A sensor assembly (18) is installed on the inner wall of the air outlet pipe (17). A guide plate (12) is installed at the bottom inside the top cover (11). The cross-section of the guide plate (12) is "V" shaped, and the bottom of the guide plate (12) corresponds to the air outlet pipe (17). Multiple air outlets (13) are arranged at intervals on both sides of the bottom of the top cover (11). It also includes a controller (19), which is fixed on the inner wall of the top cover (11), and the exhaust fan (7) and sensor assembly (18) are connected to the controller (19) through wires. An alarm (20) is installed on the top of the top cover (11), and the alarm (20) is connected to the controller (19) through wires.
2. The intelligent capacitor assembly box with security protection function according to claim 1, characterized in that: The capacitor components include a power capacitor (4) and a series reactor (5). Both the power capacitor (4) and the series reactor (5) are fixed on the support base (2), and both the power capacitor (4) and the series reactor (5) are connected to the controller (19) through wires.
3. The intelligent capacitor assembly box with security protection function according to claim 1, characterized in that: The sensor assembly (18) includes a temperature sensor and a smoke sensor.
4. The intelligent capacitor assembly box with security protection function according to claim 1, characterized in that: Support legs (23) are installed at both ends of the bottom of the housing (1). Several air intake fans (8) are installed at intervals on the bottom of the housing (1). The air intake fans (8) are connected to the controller (19) through wires.
5. The intelligent capacitor assembly box with security protection function according to claim 4, characterized in that: An arc-shaped cut surface (3) is provided along the bottom edge of the support (2).
6. The intelligent capacitor assembly box with security protection function according to claim 4, characterized in that: The air intake fan (8) is set inside the fixed frame (9), and the fixed frame (9) is fixed on the box (1). The fixed frame (9) is a metal frame. A dustproof net is provided below the fixed frame (9), and the edge of the dustproof net is magnetically attached to the fixed frame (9). A frame (14) is provided on both sides of the top cover (11). The front view projection of the air outlet (13) is located inside the frame (14), and the frame (14) is made of metal. A dustproof net is also provided on the top cover (11), and the edge of the dustproof net is magnetically attached to the frame (14).
7. The intelligent capacitor assembly box with security protection function according to claim 1, characterized in that: A circuit breaker (22), a touch display (21), and a lifting handle (24) are also provided on the top of the cover (11). The circuit breaker (22) and the touch display (21) are connected to the controller (19) through wires.
8. The intelligent capacitor assembly box with security protection function according to claim 1, characterized in that: An inlet and outlet (25) is provided on one side of the box (1), and an opening and closing door (26) is detachably installed on the inlet and outlet (25).