Power distribution cabinet with overheating alarm function

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with an overheating alarm function, which comprises a cabinet body, a cooling assembly and a control unit, and is characterized in that the cooling assembly comprises a first fan, a second fan, a baffle plate and a power unit for driving the baffle plate to move; the control unit comprises a data acquisition center, a data processing center, a data storage center and an alarm center; a communication chamber, a bus chamber and a circuit breaker chamber are arranged in the cabinet body. In the invention, if the first numerical value is higher than the first threshold value, the data processing center generates an alarm instruction, and the alarm center gives an alarm, so that on one hand, a sound-light alarm can be given, and on the other hand, an alarm signal can be sent to the upper computer.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and specifically to a power distribution cabinet with an overheat alarm function. Background Technology

[0002] Chinese Patent Application No. 202510491107.9 discloses a power distribution cabinet with a temperature alarm function, including a shell, a cabinet door rotatably connected to the inner wall of the shell, an alarm light fixedly connected to the left side of the shell, a ventilation window fixedly connected to the inner wall of the shell, a fan assembly installed on the inner wall of the ventilation window, and a filter plate fixedly connected to the inner wall of the ventilation window. When the temperature of the power distribution cabinet is too high, a temperature detector will detect the temperature of the power distribution cabinet and transmit an electrical signal to the alarm light to trigger an alarm, thereby attracting maintenance personnel to inspect and prevent overheating caused by short circuits and fires inside the power distribution cabinet. It can also blow out hot air from inside the power distribution cabinet, enabling automatic cooling of the interior and preventing damage to internal electronic components caused by continuous temperature increases.

[0003] However, with the development of technology, more and more network communication devices are installed in the power distribution cabinet. These network communication devices are often concentrated in the communication room, and their signals will fluctuate at high temperatures, resulting in alarm delays.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide a power distribution cabinet with an overheat alarm function that can effectively solve the above-mentioned technical problems.

[0006] To achieve the purpose of the invention, the following technical solution is adopted:

[0007] A power distribution cabinet with overheat alarm function includes: a cabinet body, a cooling assembly, and a control unit. The cooling assembly includes: a first fan, a second fan, a baffle, and a power unit that moves the baffle. The control unit includes: a data acquisition center, a data processing center, a data storage center, and an alarm center. The cabinet body is equipped with a communication room, a busbar room, and a circuit breaker room.

[0008] The data acquisition center acquires temperature data; the data processing center processes the temperature data acquired by the data acquisition center and generates instructions; the data storage center stores data; the data acquisition center acquires temperature data after receiving instructions from the data processing center and executing those instructions; the alarm center issues alarms.

[0009] When the first value of the temperature data is higher than the highest value of the historical data, the data processing center issues instruction one;

[0010] When the first value is not higher than the highest value in the historical data, if the first value is higher than the first threshold, the data center issues instruction two.

[0011] Furthermore: When the data processing center generates an instruction, it first compares the temperature data with historical data stored in the data storage center. When the first value of the temperature data is higher than the highest value of the historical data, the data processing center issues instruction one: reduce the period for the data acquisition center to acquire temperature data. The data processing center then compares the first value acquired by the data acquisition center with the second value acquired by the data acquisition center. When the second value is less than the highest value and much less than the first value, the data processing center determines that the first value is an abnormal value; otherwise, the data processing center generates an alarm instruction, and the alarm center issues an alarm. When the first value is not higher than the highest value of the historical data, the first value is compared with a first threshold. If the first value is higher than the first threshold, the data processing center generates an alarm instruction, the alarm center issues an alarm, and the data center issues instruction two, in which the cooling component cools the cabinet.

[0012] Furthermore: when the third value of the temperature data of the communication room obtained by the data acquisition center is higher than the first threshold, the second fan draws air from the communication room; when the fourth value of the temperature data of the circuit breaker room obtained by the data acquisition center is higher than the second threshold, the second fan blows air into the circuit breaker room.

[0013] Furthermore: the data acquisition center acquires the temperature data of the circuit breaker compartment, and the data processing center processes the acquired temperature data to generate a temperature drop value. If the temperature drop value is greater than a preset third threshold, the cold storage body stores cold, and at the same time, the power of the first fan and the second fan is increased.

[0014] Furthermore: the power unit includes a first motor, a screw connected to the output shaft of the motor via a coaxial reducer, a first bushing and a second bushing threadedly connected to the screw, and a fixing member fixedly connected to the first bushing, wherein the baffle is fixedly connected to the fixing member.

[0015] Furthermore: a hinge seat is fixedly installed on the side plate, a connector is hinged on the hinge seat, an inclined connecting hole is opened in the middle of the connector, a connecting rod is fixedly installed on the second bushing, the connecting rod is inserted into the connecting hole and slides in contact with the connector, an mounting piece is rotatably installed at the end of the connector, and the second fan is installed on the mounting piece.

[0016] Furthermore: the cold storage body includes a water-cooled plate, on which a housing is fixedly mounted, and the second fan is located inside the housing.

[0017] Furthermore: a gear pump is installed in the middle of the housing, and a second motor is installed inside the housing, the second motor being connected to the gear pump.

[0018] Furthermore: the output shaft of the second motor is connected to a first gear, and a second gear is installed on the housing. The second gear is a double gear, and the upper gear of the double gear is divided into a toothed area and a toothless area. A movable rod is slidably installed on the side of the housing. The middle part of the movable rod is a rack, and its two ends are provided with openings. One end of the grille is rotatably connected to the housing, and the other end of the grille is inserted into the opening. Springs are provided at both ends of the movable rod to reset it.

[0019] Compared with the prior art, the invention has the following beneficial effects:

[0020] The invention relates to a power distribution cabinet with an overheat alarm function. If a first value is higher than a first threshold, the data processing center generates an alarm command and the alarm center issues an alarm. The alarm center can issue an audible and visual alarm and send an alarm signal to the host computer. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0022] Figure 1 A three-dimensional diagram of a power distribution cabinet with an overheat alarm function.

[0023] Figure 2 A side view of a power distribution cabinet with an overheat alarm function for the invention.

[0024] Figure 3 A schematic diagram of the cooling assembly for a power distribution cabinet with an overheat alarm function.

[0025] Figure 4 Another schematic diagram of the cooling assembly for a power distribution cabinet with overheat alarm function.

[0026] Figure 5 A schematic diagram showing the connection between the first and second gears of a power distribution cabinet with an overheat alarm function.

[0027] Figure 6 This is a schematic diagram showing the connection between the second gear and the moving rod in an invention for a power distribution cabinet with an overheat alarm function.

[0028] Figure 7A schematic diagram showing the connection between the moving rod and the grille of a power distribution cabinet with an overheat alarm function.

[0029] In the diagram: 1. Cabinet; 2. Communication compartment; 3. Busbar compartment; 4. Circuit breaker compartment; 5. First fan; 6. Second fan; 7. Baffle; 8. Small busbar compartment; 9. First motor; 10. Screw; 11. First bushing; 12. Second bushing; 13. Fixing component; 14. Side plate; 15. Hinge seat; 16. Connecting component; 17. Connecting hole; 18. Connecting rod; 19. Mounting component; 20. Water-cooled plate; 21. Housing; 22. Gear pump; 23. Moving rod; 24. Grille; 25. First gear; 26. Second gear. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the invention clearer, the technical solutions in the embodiments of the invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the invention, but not all embodiments.

[0031] In the description of the invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They 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 limiting the scope of protection of the invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0032] like Figures 1 to 7 As shown, the power distribution cabinet with overheat alarm function of the present invention includes: a cabinet body 1, a cooling assembly, and a control unit. The cabinet body 1 is provided with a communication compartment 2, a busbar compartment 3, and a circuit breaker compartment 4. The cooling assembly is used to cool the cabinet body 1, and the control unit is used to perform comprehensive control of the cabinet body 1.

[0033] The cooling assembly includes: a first fan 5, a second fan 6, a baffle 7, and a power unit that drives the baffle 7 to move.

[0034] The control unit includes a data acquisition center, a data processing center, a data storage center, and an alarm center. The data acquisition center acquires temperature data. The data processing center processes the temperature data acquired by the data acquisition center and generates instructions. The data storage center stores data, including but not limited to the temperature data acquired by the data acquisition center, the instructions from the data processing center, and the temperature data acquired by the data acquisition center after executing the instructions. The alarm center is used to issue alarms, which can issue audible and visual alarms and send alarm signals to the host computer.

[0035] It should be noted here that audible and visual alarms refer to on-site alarms, that is, to remind on-site personnel to take emergency measures; sending alarm signals to the host computer refers to sending alarms through the network system, so that the control center and other units can detect problems with the distribution cabinet and promptly dispatch personnel for maintenance and repair.

[0036] When the data processing center generates an instruction, it first compares the temperature data with historical data stored in the data storage center. When the first value of the temperature data is higher than the highest value of the historical data, the data processing center issues instruction one: reduce the period for the data acquisition center to acquire temperature data. The data processing center then compares the first value acquired by the data acquisition center with the second value acquired by the data acquisition center. When the second value is less than the highest value and much less than the first value, the data processing center determines that the first value is an abnormal value; otherwise, the data processing center generates an alarm instruction, and the alarm center issues an alarm. When the first value is not higher than the highest value of the historical data, the first value is compared with a first threshold. If the first value is higher than the first threshold, the data processing center generates an alarm instruction, the alarm center issues an alarm, and the data center issues instruction two: the cooling component cools cabinet 1.

[0037] When the first instruction is used to eliminate anomalies, due to the sensor itself, the monitored values ​​may be high. If an alarm is triggered directly, it may cause a false alarm. Therefore, it is necessary to verify whether multiple values ​​are continuous. If multiple values ​​show a continuous increase, an anomaly is determined, and an alarm is triggered to eliminate false alarms. This is beneficial to the stable operation of the power distribution cabinet and can provide early warning, thereby minimizing risks.

[0038] It should be explained in detail here that a small busbar compartment 8 is generally set above the communication room 2. The small busbar compartment 8 is mainly used to collect control power, signal power and protection power. Therefore, it is difficult to have space to install related heat dissipation equipment above the communication room 2, resulting in poor heat dissipation capacity of the communication room 2. Therefore, through holes are opened on the side plate 14 of the cabinet 1 to dissipate heat from the communication room 2.

[0039] In another embodiment of the present invention, in order to improve the heat dissipation capacity of the communication chamber 2, two through holes can be provided on the side plate 14, one located at the top and the other at the bottom. The second fan 6 is located at the bottom through hole. The second fan 6 is a brushless motor fan with a high rotation speed and strong airflow, resulting in better heat dissipation performance. At the same time, its suction force is also relatively strong. Thus, under the combined action of the first fan 5 and the second fan 6, airflow is formed, reducing the temperature of the communication chamber 2.

[0040] When the third value of the temperature data of the communication room 2 obtained by the data acquisition center is higher than the first threshold, the second fan 6 draws air from the communication room 2 for forced heat dissipation; when the fourth value of the temperature data of the circuit breaker room 4 obtained by the data acquisition center is higher than the second threshold, the second fan 6 blows air into the circuit breaker room 4, and the baffle 7 blocks the through hole.

[0041] The first threshold is the high temperature threshold of the communication room 2. When the first threshold is reached, the components in the communication room 2 may be affected by high temperature, which may affect stable operation. Therefore, when the first threshold is reached, forced heat dissipation is required.

[0042] When the fourth value is higher than the second threshold, the temperature inside the circuit breaker compartment 4 is relatively high. At this time, efforts should be made to reduce the temperature inside the circuit breaker compartment 4 to avoid danger. At this time, the abnormal third value will only cause system lag. Therefore, the first fan 5 and the second fan 6 are used to blow air into the circuit breaker compartment 4.

[0043] Under normal circumstances, the first fan 5 always blows air downwards. Because the current and resistance inside the circuit breaker compartment 4 are relatively large, it generates a lot of heat. Specifically, the resistance between the moving and stationary contacts of the circuit breaker is too high.

[0044] The first fan 5 is fixedly installed on the top of the cabinet 1. It is typically a GFM650 fan with a power of 120 watts, which can handle most situations. The second threshold is the high-temperature threshold of the circuit breaker compartment 4. Excessive temperature will increase the operating losses of the distribution cabinet and further raise the temperature, affecting stable operation. Therefore, a second fan 6 is needed to assist in heat dissipation. The second fan 6 is a brushless motor fan with a speed of over 5000 rpm, enabling forced heat dissipation. The second fan 6 adopts a duct design to enhance airflow, quickly blowing hot air to the outside of the distribution cabinet and strengthening air circulation.

[0045] In this invention, the power unit includes a first motor 9, a screw 10 connected to the motor output shaft via a coaxial reducer, a first bushing 11 and a second bushing 12 threadedly connected to the screw 10, and a fixing member 13 fixedly connected to the first bushing 11. The baffle 7 is fixedly connected to the fixing member 13. When the first motor 9 drives the screw 10 to rotate, the first bushing 11 and the second bushing 12 move on the screw 10, thereby the moving first bushing 11 drives the baffle 7 to move via the fixing member 13.

[0046] A hinge seat 15 is fixedly installed on the side plate 14. A connector 16 is hinged to the hinge seat 15. An inclined connecting hole 17 is opened in the middle of the connector 16. A connecting rod 18 is fixedly installed on the second bushing 12. The connecting rod 18 is inserted into the connecting hole 17 and slides in contact with the connector 16. The moving second bushing 12 drives the connecting rod 18 to move, causing the connecting rod 18 to slide in the connecting hole 17, and finally causing the connecting rod 18 to rotate around the hinge seat 15.

[0047] The end of the connector 16 is rotatably mounted with a mounting member 19, and the second fan 6 is mounted on the mounting member 19.

[0048] Due to the orientation of the mounting component 19, the second fan 6 has difficulty blowing air downwards. In this case, a rotating motor can be installed at one end of the mounting component 19, so that the rotating motor drives the mounting component 19 to rotate 90 degrees, which facilitates blowing air downwards. This technology is existing technology and will not be described in detail here.

[0049] The data acquisition center acquires the temperature data of the circuit breaker compartment 4. The data processing center processes the acquired temperature data to generate a temperature drop value. If the temperature drop value is greater than a preset third threshold, the cold storage body stores cold, and the power of the first fan 5 and the second fan 6 can be appropriately increased.

[0050] Therefore, this application can flexibly and autonomously implement various cooling schemes according to temperature conditions, enabling the power distribution cabinet to operate stably under relatively safe conditions.

[0051] After the cold storage body stores cold, it can cool the second fan 6, allowing the second fan 6 to operate at a higher power. On the other hand, it can reduce the temperature of the air blown out by the second fan 6, resulting in better overall heat dissipation performance.

[0052] The cold storage body includes a water-cooled plate 20, on which a housing 21 is fixedly installed. The second fan 6 is located inside the housing 21, and heat dissipation fins are installed on the housing 21. In this application, the housing 21 is made of a thermally conductive material so that it can conduct heat.

[0053] It should be explained in detail here that the heat dissipation fins are installed inside and outside the housing 21. On the outside of the housing 21, the heat dissipation fins can cool the air blown out by the first fan 5.

[0054] It is easy to see from the above description that the present invention can achieve the purpose of heat dissipation inside the cabinet 1 by combining water cooling and air cooling.

[0055] However, in actual use, the rate of heat loss from the cold storage body, i.e. the cooling efficiency of the water-cooled plate 20, must be taken into account. When other factors have been adjusted to a reasonable level, the flow rate of the cooling water inside the water-cooled plate 20 is of paramount importance.

[0056] It should be noted that the water-cooled plate 20 is detachably installed on the mounting component 19, and the number of the cold storage body can be flexibly set according to design requirements.

[0057] In practical use, since the number of the cold storage bodies can be flexibly set, the pump body that pumps cold water into the water-cooled plate 20 should be small to avoid excessive water flow and leakage due to high water pipe pressure when the number of water-cooled plates 20 is small.

[0058] For the reasons mentioned above, this application installs a gear pump 22 in the middle of the housing 21, and a second motor is installed inside the housing 21. The second motor is connected to the gear pump 22 and drives the gear pump 22 to achieve the purpose of pressurization.

[0059] Using a high-speed brushless motor can increase the airflow of the second fan 6, but it is more concentrated and difficult to blow air over a wide area.

[0060] In this application, a grille 24 can be set, and the angle of the grille 24 can be changed to change the blowing angle and achieve wide-range blowing.

[0061] In this application, the output shaft of the second motor is connected to a first gear 25, and a second gear is installed on the housing 21. The second gear is a double gear, and its lower gear meshes with the first gear 25. The lower gear of the double gear plays a role in speed reduction. By setting an appropriate gear ratio, the rotational speed of the double gear can be reduced.

[0062] The upper gear of the double gear is divided into a toothed area and a toothless area. A movable rod 23 is slidably mounted on the side of the housing 21. The middle part of the movable rod 23 is a rack, and its two ends are provided with openings. One end of the grille 24 is rotatably connected to the housing 21, and the other end of the grille 24 is inserted into the opening. Springs can be provided at both ends of the movable rod 23 to return it to its original position.

[0063] It should be explained in detail here that the grille 24 is divided into an installation part, an air guide part, and a snap-fit ​​part. The snap-fit ​​part is a vertical plate, which is clearance-fitted when inserted into the opening.

[0064] In other words, the teeth of the upper gear of the double gear mesh with the teeth of the rack. When the double gear rotates, it can drive the rack to move. When the double gear rotates to the toothless area, the spring pushes the moving rod 23 to reset. This enables the grille 24 to swing and expands the blowing range of the second fan 6.

[0065] The grille 24 is made of a thermally conductive material, which can conduct heat and further reduce the temperature.

[0066] A positioning groove can be provided on the side wall of the housing 21 so that the moving rod 23 can move stably. This application will not elaborate further.

[0067] Finally, it should be noted that the second motor can both increase the water flow rate and change the air blowing range.

[0068] The range of the toothed area is related to the range of the moving rod 23 and needs to be taken into account the size of the teeth. Those skilled in the art can conduct multiple experiments based on the above description.

[0069] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0070] All standard parts used in the invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0071] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the scope of protection of the appended claims.

Claims

1. A power distribution cabinet with an overheat alarm function, characterized in that: include: The cabinet includes a cooling assembly and a control unit. The cooling assembly includes a first fan, a second fan, a baffle, and a power unit that moves the baffle. The control unit includes a data acquisition center, a data processing center, a data storage center, and an alarm center. The cabinet also includes a communication room, a busbar room, and a circuit breaker room. The data acquisition center acquires temperature data; the data processing center processes the temperature data acquired by the data acquisition center and generates instructions; the data storage center stores data; the data acquisition center acquires temperature data after receiving instructions from the data processing center and executing those instructions; the alarm center issues alarms. When the first value of the temperature data is higher than the highest value of the historical data, the data processing center issues instruction one; When the first value is not higher than the highest value in the historical data, if the first value is higher than the first threshold, the data center issues instruction two.

2. The distribution cabinet with overheat alarm function as described in claim 1, characterized in that: When the data processing center generates an instruction, it first compares the temperature data with historical data stored in the data storage center. When the first value of the temperature data is higher than the highest value of the historical data, the data processing center issues instruction one: reduce the period for the data acquisition center to acquire temperature data. The data processing center then compares the first value acquired by the data acquisition center with the second value acquired by the data acquisition center. When the second value is less than the highest value and much less than the first value, the data processing center determines that the first value is an anomaly. Otherwise, the data processing center generates an alarm instruction, and the alarm center issues an alarm. When the first value is not higher than the highest value of the historical data, the first value is compared with a first threshold. If the first value is higher than the first threshold, the data processing center generates an alarm instruction, the alarm center issues an alarm, and the data center issues instruction two: the cooling component cools the cabinet.

3. The distribution cabinet with overheat alarm function as described in claim 2, characterized in that: When the third value of the temperature data of the communication room obtained by the data acquisition center is higher than the first threshold, the second fan draws air from the communication room; when the fourth value of the temperature data of the circuit breaker room obtained by the data acquisition center is higher than the second threshold, the second fan blows air into the circuit breaker room.

4. The power distribution cabinet with overheat alarm function as described in claim 3, characterized in that: The data acquisition center acquires temperature data of the circuit breaker compartment, and the data processing center processes the acquired temperature data to generate a temperature drop value. If the temperature drop value is greater than a preset third threshold, the cold storage body stores cold, and at the same time, the power of the first fan and the second fan is increased.

5. The distribution cabinet with overheat alarm function as described in any one of claims 1 to 4, characterized in that: The power unit includes a first motor, a screw connected to the output shaft of the motor via a coaxial reducer, a first bushing and a second bushing threadedly connected to the screw, and a fixing member fixedly connected to the first bushing. The baffle is fixedly connected to the fixing member.

6. The distribution cabinet with overheat alarm function as described in claim 5, characterized in that: A hinge seat is fixedly installed on the side plate, and a connector is hinged on the hinge seat. An inclined connecting hole is opened in the middle of the connector. A connecting rod is fixedly installed on the second bushing. The connecting rod is inserted into the connecting hole and slides in contact with the connector. An mounting piece is rotatably installed at the end of the connector. The second fan is installed on the mounting piece.

7. The distribution cabinet with overheat alarm function as described in claim 6, characterized in that: The cold storage body includes a water-cooled plate, on which a housing is fixedly mounted, and the second fan is located inside the housing.

8. The distribution cabinet with overheat alarm function as described in claim 7, characterized in that: A gear pump is installed in the middle of the housing, and a second motor is installed inside the housing and connected to the gear pump.

9. The distribution cabinet with overheat alarm function as described in claim 8, characterized in that: The output shaft of the second motor is connected to a first gear, and a second gear is installed on the housing. The second gear is a double gear, and the upper gear of the double gear is divided into a toothed area and a toothless area. A movable rod is slidably installed on the side of the housing. The middle part of the movable rod is a rack, and its two ends are provided with openings. One end of the grille is rotatably connected to the housing, and the other end of the grille is inserted into the opening. Springs are provided at both ends of the movable rod to reset it.

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