Power distribution cabinet overheating early warning mechanism

Abstract

The invention belongs to the technical field of power distribution cabinets, and discloses a power distribution cabinet overheating early warning mechanism which comprises a power distribution cabinet shell. The cabinet door is hinged to the front surface of the power distribution cabinet shell; and the electric appliance element is arranged in the power distribution cabinet shell. According to the technical scheme, by arranging the observation window and the cooling fan, when the induction water tank induces heat generated by operation of the electric appliance element, part of water in the induction water tank is evaporated to generate gas, the first valve column is pushed upwards through the communicating pipe, and water drops generated when water vapor moves pass through the rotating water wheel and drive the rotating water wheel to rotate; a first connecting arm drives a linkage arm to drive a second connecting arm and a first inclined gear to rotate, so that a second inclined gear and a cooling fan are driven to rotate to blow water vapor to accelerate cooling, then water pushes a second valve column to the left until water flows back into an induction water tank, the internal water amount is balanced, and the minimum water amount is seen, so that the cooling effect is improved. And if yes, determining that the temperature of the front electrical component is the highest, thereby realizing accurate determination of the fault source.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution cabinets, and in particular is an overheating early warning mechanism for a power distribution cabinet. Background Art

[0002] The overheat warning mechanism of the power distribution cabinet is to timely detect and warn the overheating inside the power distribution cabinet to prevent equipment failure or safety accidents caused by excessive temperature. It is composed of the following:

[0003] 1. Temperature sensor:

[0004] Function: Responsible for real-time monitoring of the temperature inside the power distribution cabinet.

[0005] Type: High-precision, high-reliability temperature sensors are usually selected, such as thermistors, thermocouples or semiconductor temperature sensors and infrared temperature sensors.

[0006] Arrangement: Arrange multiple temperature sensors at key locations inside the distribution cabinet (such as cable joints, circuit breakers, transformers and other heat-prone parts) to ensure comprehensive monitoring.

[0007] 2. Data acquisition and processing unit:

[0008] Function: Responsible for receiving data from the temperature sensor and processing and analyzing it.

[0009] Features: It has high-speed data acquisition and powerful data processing capabilities, and can determine in real time whether the temperature inside the power distribution cabinet exceeds the preset safety threshold.

[0010] 3. Early warning system:

[0011] Function: When the internal temperature of the power distribution cabinet exceeds the preset threshold, an early warning signal is issued in time.

[0012] Implementation:

[0013] Sound and light alarm: Install sound and light alarm devices outside the distribution cabinet or in the monitoring center so that staff can detect and handle them in time.

[0014] Most of the existing overheating situations are caused by internal electrical equipment failure and overheating. The early warning agency can only sound an alarm when the temperature exceeds the threshold, but cannot accurately find the source of the fault. As a result, it takes a lot of time to find the faulty equipment, which increases labor intensity, so it needs to be improved. Summary of the invention

[0015] In order to solve the problems raised in the above background technology, the present invention provides an overheating warning mechanism for a power distribution cabinet, which has the advantage of being able to accurately determine the source of a fault.

[0016] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an overheating warning mechanism for a distribution cabinet, comprising a distribution cabinet shell; a cabinet door hinged to the front of the distribution cabinet shell; electrical components, arranged inside the distribution cabinet shell; a heat sensing component comprising an induction water tank, the induction water tank is fixedly installed on the back of the distribution cabinet shell and directly behind the electrical components, an observation window is arranged at the rear end of the induction water tank, a connecting pipe is fixedly connected to the top of the induction water tank, the other end of the connecting pipe extends to the right side of the connecting pipe and is fixedly connected thereto, a water circulation component is arranged inside the connecting pipe, a cooling fan is movably sleeved on the right side of the top of the inner cavity of the connecting pipe, and a linkage mechanism located behind the cooling fan and the water circulation component is arranged on the back of the connecting pipe.

[0017] Preferably, an infrared temperature sensor is arranged on the top of the front of the cabinet door, and an audible and visual alarm device is arranged on the front of the power distribution cabinet housing and is located on the right side of the infrared temperature sensor.

[0018] Preferably, the water circulation assembly comprises a first valve column, a first connecting spring, a rotating water wheel, a second valve column and a second connecting spring;

[0019] The first valve column is movably installed inside the connecting pipe and on the top of the induction water tank, the first connecting spring is fixedly installed on the top of the first valve column, the rotating water wheel is movably sleeved inside the connecting pipe and under the cooling fan, the second valve column is movably installed at the bottom of the right end of the connecting pipe, and the second connecting spring is fixedly installed on the left side of the second valve column.

[0020] Preferably, the other ends of the first connecting spring and the second connecting spring are both fixedly connected to the inner wall of the connecting pipe.

[0021] Preferably, the linkage mechanism comprises a first connecting arm, a linkage arm, a second connecting arm, a first helical gear and a second helical gear;

[0022] The first connecting arm is fixedly sleeved on the rear end of the rotating water wheel and the back side of the connecting pipe, the linkage arm is movably sleeved on the top of the first connecting arm, the second connecting arm is movably sleeved on the front end of the top of the linkage arm, the first bevel gear is movably sleeved on the bottom end of the first bevel gear, and the second bevel gear is fixedly sleeved on the top of the cooling fan.

[0023] Preferably, surfaces of the first helical gear and the second helical gear are meshed.

[0024] Preferably, heat dissipation openings are provided on both sides of the power distribution cabinet housing.

[0025] Preferably, shielding and dustproof components located outside the heat dissipation opening are provided on both sides of the power distribution cabinet housing, and the shielding and dustproof components include a shielding plate and a sliding block;

[0026] The shielding plate is movably installed above and below the outer side of the heat dissipation port, and the sliding block is fixedly installed in the middle of the outer side of the shielding plate and inside the power distribution cabinet shell, and is movably sleeved with the inside of the power distribution cabinet shell.

[0027] Preferably, a driving assembly is provided on the top of the power distribution cabinet housing, and the driving assembly includes a driving motor group, a movable frame and a driving arm;

[0028] The driving motor group is fixedly installed in the middle of the top of the distribution cabinet shell, the movable frame is threadedly sleeved on the surface of the driving motor group, and both sides extend to the top of the sliding block, and the driving arm is hinged between the bottom of the movable frame and the top of the sliding block.

[0029] Preferably, a transmission assembly is provided on the back of the shielding plate, and the transmission assembly comprises a toothed rack and a transmission gear;

[0030] The tooth rack is arranged on the back side of the shielding plate, and the transmission gear is movably sleeved on both sides of the power distribution cabinet shell and the middle part of the inner side of the tooth rack, and the inner side of the tooth rack is meshed with the surface of the transmission gear.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The above technical solution is provided with an observation window and a cooling fan. When the induction water tank senses the heat generated by the operation of the electrical component, part of the water in the induction water tank will be evaporated to generate gas which pushes the first valve column upward through the connecting pipe. The water droplets generated when the water vapor moves will pass through the rotating water wheel and drive it to rotate, so that the first connecting arm drives the linkage arm to drive the second connecting arm and the first bevel gear to rotate, so as to drive the second bevel gear and the cooling fan to rotate to blow air to accelerate the cooling of the water vapor. After that, the water will push the second valve column to the left until the water flows back into the induction water tank, so that the internal water volume is balanced. By seeing the least amount of water, it is determined that the temperature of the electrical component in front is the highest, thereby achieving accurate determination of the source of the fault.

[0033] The present invention provides a baffle plate, a driving arm and a tooth rack. Through the design of the baffle plate, the heat dissipation port position can be shielded from dust and moisture when the electrical components are not in working state. Then the driving motor group can be started, so that the output end drives the movable frame to move backward as a whole, so that the driving arm pulls the upper sliding block and the baffle plate to move upward as a whole. After that, due to the relationship that the inner sides of the two tooth racks are meshed with the surface of the transmission gear, the lower sliding block and the baffle plate are driven to move downward as a whole, and finally the two baffle plates are back to back to release the sealing of the heat dissipation port. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the present invention;

[0035] Figure 2It is a cross-sectional structural schematic diagram of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the back side of the present invention;

[0037] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0038] Figure 5 It is a structural schematic diagram of the induction water tank of the present invention;

[0039] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B in the middle;

[0040] Figure 7 It is a schematic cross-sectional view of the water circulation component of the present invention.

[0041] In the figure: 1. power distribution cabinet shell; 2. cabinet door; 3. infrared temperature sensor; 4. sound and light alarm device; 5. electrical components; 6. heat sensing component; 601. induction water tank; 602. observation window; 603. connecting pipe; 7. water circulation component; 701. first valve column; 702. first connecting spring; 703. rotating water wheel; 704. second valve column; 705. second connecting spring; 8. cooling fan; 9. linkage mechanism; 901. first connecting arm; 902. linkage arm; 903. second connecting arm; 904. first bevel gear; 905. second bevel gear; 10. heat dissipation port; 11. shielding and dustproof component; 1101. shielding plate; 1102. sliding block; 12. driving component; 1201. driving motor group; 1202. movable frame; 1203. driving arm; 13. transmission component; 1301. tooth rack; 1302. transmission gear. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figures 1 to 7As shown, the present invention provides an overheating warning mechanism for a distribution cabinet, comprising a distribution cabinet housing 1; a cabinet door 2 hinged on the front of the distribution cabinet housing 1; an electrical component 5, which is arranged inside the distribution cabinet housing 1; a heat sensing component 6 comprising an induction water tank 601, which is fixedly installed on the back of the distribution cabinet housing 1 and directly behind the electrical component 5, and an observation window 602 is arranged at the rear end of the induction water tank 601, and a connecting pipe 603 is fixedly connected to the top of the induction water tank 601, and the other end of the connecting pipe 603 extends to the right side of the connecting pipe 603 and is fixedly connected thereto, a water circulation component 7 is arranged inside the connecting pipe 603, a cooling fan 8 is movably sleeved on the right side of the top of the inner cavity of the connecting pipe 603, and a linkage mechanism 9 located behind the cooling fan 8 and the water circulation component 7 is arranged on the back of the connecting pipe 603.

[0044] When the induction water tank 601 is subjected to the heat generated by the operation of the electrical component 5, the water inside will be evaporated, and through the connecting pipe 603 and the water circulation component 7, the linkage mechanism 9 will drive the cooling fan 8 to rotate to accelerate the cooling of the water vapor inside the connecting pipe 603 into water for circulation.

[0045] like Figure 1 As shown, an infrared temperature sensor 3 is arranged on the top of the front of the cabinet door 2 , and an audible and visual alarm device 4 is arranged on the front of the power distribution cabinet housing 1 and is located on the right side of the infrared temperature sensor 3 .

[0046] The above solution is adopted: by providing an infrared temperature sensor 3, when the infrared temperature sensor 3 senses that the inside of the distribution cabinet housing 1 is overheated, the sound and light alarm device 4 will send a sound and light alarm to the operator so that the operation can be stopped in time for maintenance.

[0047] like Figure 7 As shown, the water circulation assembly 7 includes a first valve column 701, a first connecting spring 702, a rotating water wheel 703, a second valve column 704 and a second connecting spring 705;

[0048] The first valve column 701 is movably installed inside the connecting pipe 603 and on the top of the sensing water tank 601, the first connecting spring 702 is fixedly installed on the top of the first valve column 701, the rotating water wheel 703 is movably sleeved inside the connecting pipe 603 and under the cooling fan 8, the second valve column 704 is movably installed at the bottom of the right end of the connecting pipe 603, and the second connecting spring 705 is fixedly installed on the left side of the second valve column 704.

[0049] The above scheme is adopted: by providing a rotating water wheel 703, when the water vapor in the connecting pipe 603 pushes the first valve column 701 upward, it can flow to the top of the rotating water wheel 703, and some water droplets will fall and flow on the surface of the rotating water wheel 703 to drive the rotating water wheel 703 to rotate, so as to subsequently drive the linkage mechanism 9 to drive the cooling fan 8 to rotate.

[0050] like Figure 7 As shown, the other ends of the first connecting spring 702 and the second connecting spring 705 are both fixedly connected to the inner wall of the connecting pipe 603 .

[0051] The above scheme is adopted: by providing a first connecting spring 702 and a second connecting spring 705, due to the elastic force of the first connecting spring 702, the first valve column 701 can be pushed downward, so that the gas can only pass upward, and the elastic force of the second connecting spring 705 can push the second valve column 704 to the right, so that the water flow or gas can only flow back to the sensing water tank 601 to the left by pushing the second connecting spring 705.

[0052] like Figure 6 As shown, the linkage mechanism 9 includes a first connecting arm 901, a linkage arm 902, a second connecting arm 903, a first helical gear 904 and a second helical gear 905;

[0053] The first connecting arm 901 is fixedly sleeved on the rear end of the rotating water wheel 703 and the back of the connecting pipe 603, the linkage arm 902 is movably sleeved on the top of the first connecting arm 901, the second connecting arm 903 is movably sleeved on the front end of the top of the linkage arm 902, the first bevel gear 904 is movably sleeved on the bottom end of the first bevel gear 904, and the second bevel gear 905 is fixedly sleeved on the top of the cooling fan 8.

[0054] By adopting the above solution, by providing the linkage arm 902, when the rotating water wheel 703 rotates, the first connecting arm 901 and the linkage arm 902 can be driven to rotate, so as to drive the second connecting arm 903 and the first bevel gear 904 to rotate.

[0055] like Figure 6 As shown, the surfaces of the first helical gear 904 and the second helical gear 905 are meshed.

[0056] The above solution is adopted: by providing a first bevel gear 904, when the first bevel gear 904 rotates, the teeth can drive the second bevel gear 905 and the cooling fan 8 to rotate as a whole, so that the cooling fan 8 accelerates the cooling of the water vapor inside the connecting pipe 603.

[0057] like Figure 2 As shown, heat dissipation openings 10 are provided on both sides of the power distribution cabinet housing 1 .

[0058] By adopting the above solution, the heat generated by the electrical component 5 during operation can be ventilated and dissipated through the design of the heat dissipation opening 10 .

[0059] like Figure 4As shown, shielding and dustproof components 11 located outside the heat dissipation port 10 are provided on both sides of the power distribution cabinet housing 1, and the shielding and dustproof components 11 include shielding plates 1101 and sliding blocks 1102;

[0060] The shielding plate 1101 is movably installed above and below the outer side of the heat dissipation port 10 , and the sliding block 1102 is fixedly installed in the middle of the outer side of the shielding plate 1101 and inside the power distribution cabinet housing 1 , and is movably connected to the inside of the power distribution cabinet housing 1 .

[0061] By adopting the above solution, by providing the shielding plates 1101, when the two shielding plates 1101 face each other and completely shield the heat dissipation port 10, the electrical component 5 can be shielded from dust and moisture inside when it is not in operation.

[0062] like Figures 1 to 3 As shown, a driving assembly 12 is disposed on the top of the power distribution cabinet housing 1, and the driving assembly 12 includes a driving motor group 1201, a movable frame 1202 and a driving arm 1203;

[0063] The driving motor group 1201 is fixedly installed in the middle of the top of the distribution cabinet shell 1, the movable frame 1202 is threadedly sleeved on the surface of the driving motor group 1201, and both sides extend to the top of the sliding block 1102, and the driving arm 1203 is hinged between the bottom of the movable frame 1202 and the top of the sliding block 1102.

[0064] By adopting the above solution, the driving arm 1203 is provided. When the driving motor group 1201 operates to drive the movable frame 1202 to move backward, the driving arm 1203 can pull the upper sliding block 1102 and the shielding plate 1101 to move upward as a whole.

[0065] like Figure 4 As shown, a transmission assembly 13 is disposed on the back of the shielding plate 1101, and the transmission assembly 13 includes a toothed rack 1301 and a transmission gear 1302;

[0066] The gear rack 1301 is arranged on the back side of the baffle plate 1101 , and the transmission gear 1302 is movably sleeved on both sides of the power distribution cabinet housing 1 and the middle part of the inner side of the gear rack 1301 , and the inner side of the gear rack 1301 is meshed with the surface of the transmission gear 1302 .

[0067] By adopting the above solution, the transmission gear 1302 is provided, and when the upper baffle plate 1101 and the tooth rack 1301 move upward, the transmission gear 1302 can rotate to drive the lower tooth rack 1301 and the baffle plate 1101 to move downward as a whole.

[0068] The working principle and use process of the present invention:

[0069] First, the operator can start the drive motor group 1201. Due to the operation of the drive motor group 1201, the movable frame 1202 can be driven to move backward as a whole. At this time, the drive arm 1203 will be deflected to pull the upper sliding block 1102 and the baffle plate 1101 to move upward as a whole. After the upper gear rack 1301 rises, the teeth will drive the transmission gear 1302 to rotate, so as to drive the lower gear rack 1301, the sliding block 1102 and the baffle plate 1101 to descend as a whole, and finally the two baffle plates 1101 are turned back to back to completely remove the obstruction of the heat dissipation port 10, so as to subsequently perform auxiliary ventilation and heat dissipation through the heat dissipation port 10.

[0070] Afterwards, when the electrical component 5 is running, heat will be generated to evaporate the water inside the induction water tank 601 to generate water vapor, which can then pass through the connecting pipe 603 and push the first valve column 701 upward, while the water vapor will continue to move upward. After part of the water vapor cools and generates water droplets, it will flow on the surface of the rotating water wheel 703 to drive it to rotate, and at the same time drive the first connecting arm 901 and the linkage arm 902 to drive the second connecting arm 903 and the first bevel gear 904 to rotate. When the surfaces of the first bevel gear 904 and the second bevel gear 905 are meshed, the second bevel gear 905 and the cooling fan 8 can be driven to rotate, so that the cooling fan 8 rotates to blow air to accelerate the cooling of the water vapor, so that a large amount of water flows and pushes the second valve column 704 to the left until it flows back to the inside of the induction water tank 601, achieving a circulating water flow balance. Finally, it can be observed through the observation window 602 that the induction water tank 601 has the least water, and it is determined that the electrical component 5 in front of this position has the highest temperature, that is, the electrical component 5 is faulty.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet overheating warning mechanism, characterized in that: It comprises a power distribution cabinet housing (1); The cabinet door (2) is hinged to the front side of the power distribution cabinet housing (1); The electrical component (5) is arranged inside the housing (1) of the power distribution cabinet; The heat sensing component (6) comprises a sensing water tank (601), which is fixedly mounted on the back of the power distribution cabinet housing (1) and directly behind the electrical component (5). The rear end of the sensing water tank (601) is provided with an observation window (602). The top of the sensing water tank (601) is fixedly connected with a connecting pipe (603). The other end of the connecting pipe (603) extends to the right side of the connecting pipe (603) and is fixedly connected thereto. A water circulation component (7) is provided inside the connecting pipe (603). A cooling fan (8) is movably sleeved on the right side of the top of the inner cavity of the connecting pipe (603). A linkage mechanism (9) located behind the cooling fan (8) and the water circulation component (7) is provided on the back of the connecting pipe (603).

2. The overheat warning mechanism for the power distribution cabinet according to claim 1 is characterized in that: An infrared temperature sensor (3) is arranged on the top of the front of the cabinet door (2), and an audible and visual alarm device (4) is arranged on the front of the power distribution cabinet housing (1) and is located on the right side of the infrared temperature sensor (3).

3. The overheat warning mechanism for a power distribution cabinet according to claim 1 is characterized in that: The water circulation component (7) comprises a first valve column (701), a first connecting spring (702), a rotating water wheel (703), a second valve column (704) and a second connecting spring (705); The first valve column (701) is movably installed inside the connecting pipe (603) and on the top of the induction water tank (601), the first connecting spring (702) is fixedly installed on the top of the first valve column (701), the rotating water wheel (703) is movably sleeved inside the connecting pipe (603) and below the cooling fan (8), the second valve column (704) is movably installed at the bottom of the right end of the connecting pipe (603), and the second connecting spring (705) is fixedly installed on the left side of the second valve column (704).

4. The overheat warning mechanism for the power distribution cabinet according to claim 3 is characterized in that: The other ends of the first connecting spring (702) and the second connecting spring (705) are both fixedly connected to the inner wall of the connecting pipe (603).

5. The overheat warning mechanism for a power distribution cabinet according to claim 1 is characterized in that: The linkage mechanism (9) comprises a first connecting arm (901), a linkage arm (902), a second connecting arm (903), a first helical gear (904) and a second helical gear (905); The first connecting arm (901) is fixedly sleeved on the rear end of the rotating water wheel (703) and the back of the connecting pipe (603); the linkage arm (902) is movably sleeved on the top of the first connecting arm (901); the second connecting arm (903) is movably sleeved on the front end of the top of the linkage arm (902); the first bevel gear (904) is movably sleeved on the bottom end of the first bevel gear (904); and the second bevel gear (905) is fixedly sleeved on the top of the cooling fan (8).

6. The overheat warning mechanism for the power distribution cabinet according to claim 5 is characterized in that: The surfaces of the first helical gear (904) and the second helical gear (905) are meshed.

7. The overheat warning mechanism for a power distribution cabinet according to claim 1 is characterized in that: Heat dissipation openings (10) are provided on both sides of the power distribution cabinet housing (1).

8. The overheat warning mechanism for a power distribution cabinet according to claim 1, characterized in that: Both sides of the power distribution cabinet housing (1) are provided with shielding and dustproof components (11) located outside the heat dissipation port (10), and the shielding and dustproof components (11) include a shielding plate (1101) and a sliding block (1102); The shielding plate (1101) is movably mounted above and below the outer side of the heat dissipation port (10), and the sliding block (1102) is fixedly mounted on the middle part of the outer side of the shielding plate (1101) and inside the power distribution cabinet housing (1), and is movably sleeved inside the power distribution cabinet housing (1).

9. The overheat warning mechanism for a power distribution cabinet according to claim 1, characterized in that: A driving assembly (12) is arranged on the top of the power distribution cabinet housing (1), and the driving assembly (12) comprises a driving motor group (1201), a movable frame (1202) and a driving arm (1203); The drive motor group (1201) is fixedly installed in the middle of the top of the power distribution cabinet housing (1), the movable frame (1202) is threadedly sleeved on the surface of the drive motor group (1201), and the two sides extend to the top of the sliding block (1102), and the drive arm (1203) is hinged between the bottom of the movable frame (1202) and the top of the sliding block (1102).

10. The overheat warning mechanism for a power distribution cabinet according to claim 8, characterized in that: A transmission assembly (13) is provided on the back of the shielding plate (1101), and the transmission assembly (13) comprises a toothed rack (1301) and a transmission gear (1302); The tooth rack (1301) is arranged on the back side of the shielding plate (1101), and the transmission gear (1302) is movably sleeved on both sides of the power distribution cabinet housing (1) and the middle part of the inner side of the tooth rack (1301), and the inner side of the tooth rack (1301) is meshed with the surface of the transmission gear (1302).

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