High-temperature early warning device for power equipment
Through the multi-stage linkage mechanical structure, the progressive safety protection of high-temperature early warning devices of power equipment is achieved, and the hysteresis problem of traditional early warning devices is solved, ensuring equipment stability and timely response, and avoiding high-temperature diffusion and equipment damage.
Patent Information
- Application Number
- CN202510515346.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-08-15
AI Technical Summary
Traditional high-temperature early warning devices lack gradual early warning methods, unable to sense the internal temperature status of the equipment in a timely manner, and the emergency response is lagging, and the severity of the temperature threat cannot be distinguished, which may lead to local high temperature not being processed in time to spread to the core equipment, causing chain failures.
A multi-stage linkage mechanical structure is adopted, including temperature detection components, rack transmission devices, cooling components and alarm components. Multi-stage early warning and heat dissipation are achieved through thermal mechanical linkage, and combined with a fire extinguishing system, a progressive safety protection system is formed.
It realizes a progressive response from early warning to emergency alarm, accurately controls the speed of the cooling fan, avoids energy waste, ensures equipment stability, extends the device life, and extinguishes fires in time when high temperatures are critical to avoid equipment damage.
Smart Images
Figure CN120496274A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of early warning devices, and in particular to a high-temperature early warning device for electric power equipment. Background Art
[0002] Optical transmission equipment in fiber-optic broadband, such as OLTs and ONUs, is temperature-sensitive. High temperatures can cause signal attenuation or damage. Mobile communication base station equipment, such as RRUs, BBUs, and antennas, can also be affected by high temperatures, impacting performance and even causing downtime. Servers and network equipment in telecommunications data centers also require a stable temperature environment.
[0003] During base station construction, electrical cabinets are core facilities that ensure power supply, system stability, and safety protection for base station equipment. Traditional high-temperature warning systems often use a binary "normal-alarm" approach, lacking a progressive warning system. This makes it impossible to detect the internal temperature status of the equipment through warnings, resulting in delayed emergency responses and a lack of early warnings (such as abnormal temperature increases). This can lead to equipment being in a critical state when a sudden high-temperature event occurs. The emergency window is too short, and a single alarm cannot distinguish the severity of the temperature threat. This can lead to localized high temperatures (such as fan failure) not being promptly addressed and spreading to core equipment, triggering a cascading failure.
[0004] Therefore, it is necessary to invent a high temperature early warning device for electric equipment to solve the above problems. Summary of the Invention
[0005] The purpose of the present invention is to provide a high temperature early warning device for electric power equipment, which achieves the purpose of multi-level early warning by setting a multi-level linkage mechanical structure.
[0006] To achieve this object, the present invention adopts the following technical solutions: A high-temperature early warning device for electric power equipment is provided, comprising a temperature detection assembly installed inside an electrical box, the temperature detection assembly comprising a heat pipe and a piston guide rod located therein and capable of sliding longitudinally with temperature changes, one end of the piston guide rod being transmission-connected to a rack transmission device, the rack transmission device being configured to apply a downward driving force when the temperature rises, the rack transmission device comprising an adjustment rack capable of sliding longitudinally and a guide rail, a cooling assembly and an alarm assembly being respectively mounted on both sides of the lower half of the guide rail, the cooling assembly comprising a plurality of cooling fans and a push switch for controlling the wind speed and start and stop of the cooling fans by adjusting the pressing force of the rack, the alarm assembly comprising a rotating wind wheel capable of rotating synchronously with the cooling fans and a knocking rod capable of knocking the outer edge of the rotating wind wheel multiple times, a plurality of fire extinguishing chambers being arranged above the temperature detection assembly, the plurality of fire extinguishing chambers being commonly connected to a nozzle adjustment assembly, the nozzle adjustment assembly being configured to synchronously open or close the fire extinguishing chambers on both sides, the nozzle adjustment assembly comprising a guide housing, the top end of the piston guide rod being located and sliding inside the guide housing.
[0007] As a preferred solution for the high-temperature warning device of electric power equipment, the rack transmission device also includes a pitch-adjusting gear, a rocker arm and a mounting shell. The middle part of the piston guide rod is sleeved with a pitch-adjusting slider. The pitch-adjusting gear and the adjusting rack are meshed with each other. The gear shaft of the pitch-adjusting gear is fixedly connected with the rocker arm. The other end of the rocker arm is rotatably connected with the pitch-adjusting slider. A waist-shaped groove is provided on the end face of the rocker arm. The mounting shell is located at the lower half of the guide rail. The push switch is fixedly installed on the inner side of the mounting shell. The guide rail is located on the other side of the mounting shell and is provided with an adjustment groove. One end of the knocking rod passes through the adjustment groove and extends to the interior of the guide rail.
[0008] As a preferred solution for a high-temperature warning device for electrical equipment, trapezoidal blocks 1 and 2 are respectively provided on both sides of the lower half of the adjusting rack, and the lower end surface of the trapezoidal block 1 is located above the lower end surface of the trapezoidal block 2. The cooling component also includes an extrusion block, an ejection spring and a pressing protrusion. The extrusion block is slidably arranged on the inner side of the mounting shell, and two inclined surfaces that are adapted to the trapezoidal block 2 are provided on the side of the extrusion block facing the adjusting rack. The pressing protrusion is located at the other end of the extrusion block and is used to apply pressing force to the press switch. The ejection springs are fixedly installed on both sides of the pressing protrusion.
[0009] As a preferred solution of the high-temperature early warning device for electric power equipment, the knocking rod is provided with a transmission column at one end located on the inner side of the guide slide rail, the end face of the transmission column is in contact with the adjusting rack, the other end of the knocking rod extends to the rear end of the guide slide rail, the end face of the knocking rod is provided with a reset shaft, the rear end of the guide slide rail is installed with a tension spring, the tension spring and the reset shaft are elastically connected, the rear end of the guide slide rail is also installed with a fixed rotating shaft, the knocking rod rotates around the fixed rotating shaft, the end of the knocking rod is provided with a knocking arm, the knocking arm is used to approach or move away from the rotating wind wheel; when the temperature rises to the set range, the trapezoidal block squeezes the transmission column, and the knocking arm approaches the rotating wind wheel; When the temperature drops to a set range, the trapezoidal block 1 separates from the transmission column, and the knocking arm moves away from the rotating wind wheel.
[0010] As a preferred solution for a high-temperature warning device for electrical equipment, the temperature detection assembly also includes a longitudinal slide groove and a top push block. The longitudinal slide groove is located at the top of the heat pipe, the adjustable slider slides inside the longitudinal slide groove, and the top push block is trapezoidal as a whole and is located at the top of the piston guide rod. The top push block slides inside the guide shell.
[0011] As a preferred solution for the high-temperature early warning device for electric power equipment, the nozzle adjustment assembly further includes a transverse slider and a return spring. The transverse sliders are respectively located on the left and right sides of the guide housing. The sides of the transverse sliders are provided with guide slopes. The bottom of the fire extinguishing cavity is provided with a spray hole. The end surface of the transverse slider is provided with a release hole adapted to the spray hole. Multiple return springs are fixedly mounted on the ends of the transverse sliders. When the temperature reaches the preset range, the top push block squeezes the horizontal slider to slide to both sides, the spray hole is aligned with the release hole, and the fire extinguishing medium is released.
[0012] As a preferred solution for a high-temperature warning device for electrical equipment, the cooling component also includes a connecting wire, a drive motor, a transmission gear and a transmission chain. The two ends of the connecting wire are electrically connected to the push switch and the drive motor respectively. The drive motor is installed on one side of the cooling fan, the transmission gear is installed on the rotating shaft of the drive motor on one side, and the transmission chain is sleeved on the outside of the transmission gear.
[0013] As a preferred solution of the high temperature warning device for electric power equipment, a driven gear is installed at the rotating shaft of the rotating wind wheel, the driven gear is engaged with the transmission chain, and a plurality of sound-generating bumps are provided on the outer side of the rotating wind wheel.
[0014] As a preferred solution for a high-temperature warning device for electrical equipment, a fixed frame is provided in the middle of the electrical box. The temperature detection component, the fire extinguishing chamber and the nozzle adjustment component can be removably installed on the outside of the fixed frame. The alarm component, the cooling component and the rack transmission device can be removably installed on the inside of the electrical box. The cooling fan is connected to the outside.
[0015] As an optimal solution for a high-temperature warning device for power equipment, the interior of the heat pipe is filled with a medium whose volume increases as the external temperature rises. The bottom end of the piston guide rod is provided with a piston that fits tightly with the inner end surface of the heat pipe, and the bottom end of the piston is in close contact with the medium.
[0016] The beneficial effects of the present invention are as follows: when the temperature inside the electrical box rises, the piston guide rod slides upward, and the swing of the rocker arm drives the adjustment rack to slide downward, and the trapezoidal block 2 drives the extrusion block to slide backward, pressing the push switch to turn on the cooling fan. When the temperature is different, the pressing force applied by the extrusion block to the push switch is different, thereby controlling the speed of the cooling fan. The system realizes real-time dynamic adjustment through thermomechanical linkage. The displacement of the piston guide rod is linearly related to the temperature, and the speed gradient of the cooling fan is accurately controlled, thus avoiding energy waste and improving heat dissipation efficiency. The driving motor on one side is connected to the rotating wind wheel through a chain. When the temperature continues to rise, the rotating wind wheel speeds up and produces a warning sound. When the temperature continues to rise, the adjustment rack continues to slide downward, and the trapezoidal block drives the transmission column to slide to one side, driving the knocking rod to swing, so that the knocking rod fits with the rotating wind wheel. The transmission wind wheel and the knocking rod collide multiple times, emitting a high-frequency warning sound, warning of the temperature inside the electrical box. In the initial stage, the wind wheel is accelerated to produce a low-frequency warning sound; when the high temperature is critical, the knocking rod and the wind wheel collide at a high frequency to generate a penetrating alarm sound, realizing a progressive response from early warning to emergency alarm; At this time, when the piston guide rod moves upward to the specified position, the top push block pushes the horizontal slider to slide to both sides, and the fire extinguishing chamber releases the fire extinguishing medium to extinguish the electrical components inside the electrical box; in the process of the adjustment rack engaging with the pitch adjustment gear, the adjustment rack is affected by gravity and exerts a downward sliding force, driving the piston guide rod to slide upward, and through the extension of the top push block and the piston guide rod, a downward force can be exerted on the piston guide rod, and the two balance each other, thereby improving the stability of the equipment, ensuring that the displacement distance of the piston guide rod changes with the temperature in real time, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the installation relationship of this early warning device.
[0020] Figure 3 It is a structural schematic diagram of the early warning device of the present invention under normal temperature conditions.
[0021] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the temperature detection group of the present invention.
[0022] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the nozzle adjustment assembly of the present invention.
[0023] Figure 6 This invention Figure 5 Enlarged structural diagram at point A in the middle.
[0024] Figure 7 It is a structural schematic diagram of the early warning device under high temperature conditions of the present invention.
[0025] Figure 8 This invention Figure 7 Enlarged structural diagram at point B in the middle.
[0026] Figure 9 It is a schematic diagram of the position relationship of the pitch-adjusting rack under high temperature conditions of the present invention.
[0027] Figure 10 This invention Figure 9 Enlarged schematic diagram at point C in the middle.
[0028] Figure 11 It is a schematic structural diagram of the cooling component of the present invention.
[0029] Figure 12 It is a schematic structural diagram of the position relationship of the knocking rod under high temperature state of the present invention.
[0030] Figure 13 It is a schematic diagram of the position relationship of the knocking rod under normal temperature of the present invention.
[0031] In the picture: 1. Electrical box; 2. Fixed frame; 3. Temperature detection assembly; 301. Piston guide rod; 302. Adjustable distance slider; 303. Top push block; 304. Heat pipe; 305. Longitudinal slide; 4. Fire extinguishing cavity; 401. Spray hole; 5. Cooling assembly; 501. Connecting wire; 502. Extrusion block; 503. Ejection spring; 504. Press switch; 505. Press bump; 506. Cooling fan; 507. Drive motor; 508. Transmission gear; 509. Transmission chain; 6. Alarm assembly; 601. Striking rod; 602. Reset shaft; 603. Tension spring; 604. Striking arm; 605. Rotating wind wheel; 606. Driven gear; 607. Sounding bump; 608. Transmission column; 609. Fixed shaft; 7. Rack transmission device; 701. Guide rail; 702. Adjustment rack; 703. Pitch adjustment gear; 704. Rocker; 705. Waist-shaped slide; 706. Adjustment slot; 708. Mounting housing; 709. Trapezoidal block 1; 710. Trapezoidal block 2; 8. Nozzle adjustment assembly; 801. Guide housing; 802. Horizontal slider; 803. Guide slope; 804. Return spring; 805. Release hole. DETAILED DESCRIPTION
[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0033] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0035] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.
[0036] refer to Figures 1 to 13 The present invention provides a high temperature warning device for electric equipment, including a temperature detection component 3 installed inside an electrical box 1, the temperature detection component 3 includes a heat pipe 304 and a piston guide rod 301 located inside the heat pipe 304 and capable of sliding longitudinally with temperature changes, one end of the piston guide rod 301 is connected to a rack transmission device 7, the rack transmission device 7 is used to apply a downward driving force when the temperature rises, the rack transmission device 7 includes an adjustment rack 702 capable of sliding longitudinally and a guide rail 701, the lower half of the guide rail 701 is respectively installed with a cooling component 5 and an alarm component 6, the cooling component 5 includes It includes multiple cooling fans 506 and a push switch 504 that controls the wind speed and start and stop by adjusting the pressing force of the rack 702. The alarm component 6 includes a rotating wind wheel 605 that can rotate synchronously with the cooling fan 506 and a knocking rod 601 that can knock the outer edge of the rotating wind wheel 605 multiple times. A plurality of fire extinguishing chambers 4 are arranged above the temperature detection component 3. The multiple fire extinguishing chambers 4 are commonly connected to a nozzle adjustment component 8. The nozzle adjustment component 8 is used to synchronously open or close the fire extinguishing chambers 4 on both sides. The nozzle adjustment component 8 includes a guide shell 801, and the top end of the piston guide rod 301 is located inside the guide shell 801 and slides.
[0037] A multi-stage linkage control method is adopted, in which the temperature of the cooling fan 506 initially rises → the sound alarm continues to rise → the high temperature limit of the fire extinguishing system is set, forming a progressive safety protection system, effectively avoiding the risk of single protection failure, clarifying the alarm content, and being able to control the temperature inside the electrical box 1 within a certain range to avoid further temperature increase.
[0038] The rack transmission device 7 also includes a pitch adjustment gear 703, a rocker arm 704 and a mounting shell 708. The middle part of the piston guide rod 301 is sleeved with a pitch adjustment slider 302. The pitch adjustment gear 703 is meshed with the adjustment rack 702. The gear shaft of the pitch adjustment gear 703 is fixedly connected with the rocker arm 704. The other end of the rocker arm 704 is rotationally connected with the pitch adjustment slider 302. The end face of the rocker arm 704 is provided with a waist-shaped slide groove 705. The mounting shell 708 is located at the lower half of the guide rail 701. The push switch 504 is fixedly installed on the inner side of the mounting shell 708. The guide rail 701 is located on the other side of the mounting shell 708 and is provided with an adjustment groove 706. One end of the knocking rod 601 passes through the adjustment groove 706 and extends to the interior of the guide rail 701. The setting of the waist-shaped slide groove 705 ensures that when the piston guide rod 301 slides longitudinally, the rocker arm 704 can swing along to avoid the mechanism from getting stuck. At the same time, it can timely drive the pitch adjustment gear 703 to rotate and synchronously drive the adjustment rack 702 to slide downward.
[0039] Trapezoidal block 1 709 and trapezoidal block 2 710 are respectively provided on both sides of the lower half of the adjusting rack 702. The lower end surface of the trapezoidal block 1 709 is located above the lower end surface of the trapezoidal block 2 710. The cooling component 5 also includes an extrusion block 502, an ejection spring 503 and a pressing protrusion 505. The extrusion block 502 is slidably arranged on the inner side of the mounting shell 708. The side of the extrusion block 502 facing the adjusting rack 702 is provided with two inclined surfaces that are adapted to the trapezoidal block 2 710. The pressing protrusion 505 is located at the other end of the extrusion block 502 and is used to apply pressing force to the press switch 504. The ejection spring 503 is fixedly installed on both sides of the pressing protrusion 505. By setting up trapezoidal block 1 709 and trapezoidal block 2 710, different devices can be turned on at different temperatures. By increasing the length of the trapezoidal block, the temperature range of the warning can be increased. By controlling the inclination angle of trapezoidal block 2 710, different pressing forces can be applied to the extrusion block 502 at different temperatures, thereby achieving dynamic temperature control and reducing power consumption.
[0040] The knocking rod 601 is provided with a transmission column 608 at one end inside the guide slide 701, and the end face of the transmission column 608 is in contact with the adjustment rack 702. The other end of the knocking rod 601 extends to the rear end of the guide slide 701. The end face of the knocking rod 601 is provided with a reset shaft 602. The rear end of the guide slide 701 is installed with a tension spring 603. The tension spring 603 and the reset shaft 602 are elastically connected. The rear end of the guide slide 701 is also installed with a fixed rotating shaft 609. The knocking rod 601 rotates around the fixed rotating shaft 609. The end of the knocking rod 601 is provided with a knocking arm 604, and the knocking arm 604 is used to approach or move away from the rotating wind wheel 605; when the temperature rises to the set range, the trapezoidal block 709 squeezes the transmission column 608, and the knocking arm 604 approaches the rotating wind wheel 605; When the temperature drops to a set range, the trapezoidal block 709 separates from the transmission column 608, and the knocking arm 604 moves away from the rotating wind wheel 605. After the knocking arm 604 moves away from the rotating wind wheel 605, it will contact the rotating wind wheel 605 again under the action of the tension spring 603, thereby achieving a high-frequency knocking effect and achieving the purpose of high-frequency warning.
[0041] The temperature detection assembly 3 further includes a longitudinal chute 305 and a top push block 303. The longitudinal chute 305 is located at the top of the heat conducting tube 304. The adjustable slider 302 slides within the longitudinal chute 305. The top push block 303 is trapezoidal in shape and located at the top of the piston guide rod 301. The top push block 303 slides within the guide housing 801. The provision of the adjustable slider 302 ensures the sliding direction and sliding path of the longitudinal chute 305, preventing the pendulum 704 from deviating and shaking during the sliding process.
[0042] The nozzle adjustment assembly 8 further includes a transverse slider 802 and a return spring 804. The transverse sliders 802 are respectively located on the left and right sides of the guide housing 801. The side surfaces of the transverse sliders 802 are provided with guide slopes 803. The bottom of the fire extinguishing cavity 4 is provided with a spray hole 401. The end surface of the transverse slider 802 is provided with a release hole 805 adapted to the spray hole 401. A plurality of return springs 804 are fixedly mounted on the ends of the transverse sliders 802. When the temperature reaches a preset range, the top push block 303 squeezes the horizontal slider 802, causing it to slide sideways. The spray hole 401 aligns with the release hole 805, releasing the fire extinguishing medium. The fire extinguishing chamber 4 is located above the electrical components, and the nozzle adjustment assembly 8 is mechanically controlled. When a fire occurs, the fire extinguishing chamber 4 can be opened immediately, ensuring the timely activation of the fire extinguishing function and reducing the risk of fire.
[0043] The cooling assembly 5 further includes a connecting wire 501, a drive motor 507, a transmission gear 508, and a transmission chain 509. The ends of the connecting wire 501 are electrically connected to the push switch 504 and the drive motor 507, respectively. The drive motor 507 is mounted on one side of the cooling fan 506, the transmission gear 508 is mounted on one side of the drive motor 507's rotating shaft, and the transmission chain 509 is sleeved around the outer side of the transmission gear 508. The transmission gear 508 drives the transmission chain 509 to rotate, thereby rotating the fan wheel 605 and activating the cooling and warning functions simultaneously.
[0044] A driven gear 606 is mounted on the rotating shaft of the rotating wind wheel 605, and the driven gear 606 is meshed with the transmission chain 509. A plurality of sound-generating bumps 607 are provided on the outer side of the rotating wind wheel 605. The sound-generating bumps 607 collide with the knocking arm 604, thereby driving the knocking arm 604 to deflect to one side, increasing the frequency of occurrence.
[0045] A fixed frame 2 is provided in the middle of the electrical box 1. The temperature detection component 3, the fire extinguishing chamber 4 and the nozzle adjustment component 8 can be detachably mounted on the outside of the fixed frame 2. The alarm component 6, the cooling component 5 and the rack transmission device 7 can be detachably mounted on the inside of the electrical box 1. The cooling fan 506 is connected to the outside. Electrical components are installed above the fixed frame 2. The alarm component 6, the cooling component 5 and the rack transmission device 7 can be detachably mounted on the rear end of the electrical box 1. When a fire starts, the flames cannot directly burn the rear structure, thus protecting the core control components. The cooling fan 506 is externally mounted to prevent high-temperature airflow from circulating in the box and reduce the risk of secondary ignition.
[0046] According to the present invention, when the temperature inside the electrical box 1 rises, the piston guide rod 301 slides upward, and the swing of the rocker arm 704 drives the adjustment rack 702 to slide downward. The second trapezoidal block 710 drives the extrusion block 502 to slide backward, pressing the push switch 504, thereby turning on the cooling fan 506. When the temperature is different, the pressing force applied by the extrusion block 502 to the push switch 504 is different, thereby controlling the speed of the cooling fan 506. The system realizes real-time dynamic adjustment through thermomechanical linkage. The displacement of the piston guide rod 301 is linearly related to the temperature, and the speed gradient of the cooling fan 506 is accurately controlled, thereby avoiding energy waste and improving heat dissipation efficiency. The driving motor 507 on one side is connected to the rotating wind wheel 605 through a chain. When the temperature continues to rise, the rotating wind wheel 605 speeds up and produces a warning sound. When the temperature continues to rise, the adjustment rack 702 continues to slide downward, and the trapezoidal block 1 709 drives the transmission column 608 to slide to one side, driving the knocking rod 601 to swing, so that the knocking rod 601 fits with the rotating wind wheel 605, and the transmission wind wheel 1 collides with the knocking rod 601 multiple times, emitting a high-frequency warning sound, warning the temperature inside the electrical box 1. In the early stage, the wind wheel is accelerated to produce a low-frequency warning sound; when the high temperature is critical, the knocking rod 601 collides with the wind wheel at a high frequency to generate a penetrating alarm sound, realizing a progressive response from early warning to emergency alarm; At this time, when the piston guide rod 301 moves upward to the specified position, the top push block 303 pushes the horizontal slider 802 to slide to both sides, and the fire extinguishing chamber 4 releases the fire extinguishing medium to extinguish the electrical components inside the electrical box 1; in the process of the adjustment rack 702 engaging with the pitch adjustment gear 703, the adjustment rack 702 is affected by gravity and exerts a downward sliding force, driving the piston guide rod 301 to slide upward, and through the extension of the top push block 303 and the piston guide rod 301, a downward force can be exerted on the piston guide rod 301, and the two balance each other, thereby improving the stability of the equipment, ensuring that the displacement distance of the piston guide rod 301 changes in real time with the temperature, and extending the service life of the device.
[0047] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting and are provided solely for ease of description.
Claims
1. A high temperature early warning device for electric power equipment, characterized by: The invention comprises a temperature detection assembly (3) installed inside an electrical box (1), wherein the temperature detection assembly (3) comprises a heat pipe (304) and a piston guide rod (301) located inside the heat pipe and capable of sliding longitudinally with temperature changes, wherein one end of the piston guide rod (301) is connected to a rack transmission device (7), wherein the rack transmission device (7) is used to apply a downward driving force when the temperature rises, wherein the rack transmission device (7) comprises an adjustment rack (702) capable of sliding longitudinally and a guide rail (701), wherein a cooling assembly (5) and an alarm assembly (6) are respectively installed on both sides of the lower half of the guide rail (701), wherein the cooling assembly (5) comprises a plurality of cooling fans (506) and an alarm assembly (6). The invention also provides a pressure switch (504) for controlling the wind speed and start and stop of the device by adjusting the pressing force of the rack (702). The alarm component (6) includes a rotating wind wheel (605) that can rotate synchronously with the cooling fan (506) and a knocking rod (601) that can knock the outer edge of the rotating wind wheel (605) multiple times. A plurality of fire extinguishing chambers (4) are provided above the temperature detection component (3). The plurality of fire extinguishing chambers (4) are commonly connected to a nozzle adjustment component (8). The nozzle adjustment component (8) is used to synchronously open or close the fire extinguishing chambers (4) on both sides. The nozzle adjustment component (8) includes a guide shell (801). The top end of the piston guide rod (301) is located inside the guide shell (801) and slides.
2. The high temperature warning device for electric power equipment according to claim 1, characterized in that: The rack transmission device (7) further comprises a pitch-adjusting gear (703), a rocking rod (704) and a mounting housing (708); a pitch-adjusting slider (302) is sleeved on the middle portion of the piston guide rod (301); the pitch-adjusting gear (703) and the regulating rack (702) are meshed with each other; the gear shaft of the pitch-adjusting gear (703) is fixedly connected to the rocking rod (704); the other end of the rocking rod (704) is rotationally connected to the pitch-adjusting slider (302); The end surface of the rocker arm (704) is provided with a waist-shaped slide groove (705), the mounting housing (708) is located at the lower half of the guide rail (701), the push switch (504) is fixedly mounted on the inner side of the mounting housing (708), the guide rail (701) is located on the other side of the mounting housing (708) and is provided with an adjustment groove (706), and one end of the knocking rod (601) passes through the adjustment groove (706) and extends to the interior of the guide rail (701).
3. The high temperature early warning device for electric power equipment according to claim 2, characterized in that: Trapezoidal block 1 (709) and trapezoidal block 2 (710) are respectively provided on both sides of the lower half of the adjusting rack (702), and the lower end surface of the trapezoidal block 1 (709) is located above the lower end surface of the trapezoidal block 2 (710). The cooling component (5) also includes an extrusion block (502), an ejection spring (503) and a pressing protrusion (505). The extrusion block (502) is slidably arranged on the inner side of the mounting shell (708), and the side of the extrusion block (502) facing the adjusting rack (702) is provided with two inclined surfaces that are adapted to the trapezoidal block 2 (710). The pressing protrusion (505) is located at the other end of the extrusion block (502) and is used to apply pressing force to the press switch (504). The ejection spring (503) is fixedly installed on both sides of the pressing protrusion (505).
4. The high temperature early warning device for electric power equipment according to claim 3, characterized in that: The knocking rod (601) is provided with a transmission column (608) at one end inside the guide rail (701), and the end face of the transmission column (608) is in contact with the adjustment rack (702). The other end of the knocking rod (601) extends to the rear end of the guide rail (701), and the end face of the knocking rod (601) is provided with a reset shaft (602). The rear end of the guide rail (701) is provided with a tension spring (603), and the tension spring (603) and the reset shaft (602) are in contact with each other. An elastic connection is formed, the rear end of the guide rail (701) is further provided with a fixed rotating shaft (609), the knocking rod (601) rotates around the fixed rotating shaft (609), and the end of the knocking rod (601) is provided with a knocking arm (604), and the knocking arm (604) is used to move closer to or away from the rotating wind wheel (605); when the temperature rises to a set range, the trapezoidal block 1 (709) squeezes the transmission column (608), and the knocking arm (604) moves closer to the rotating wind wheel (605); When the temperature drops to a set range, the trapezoidal block 1 (709) separates from the transmission column (608), and the knocking arm (604) moves away from the rotating wind wheel (605).
5. The high temperature early warning device for electric power equipment according to claim 4, characterized in that: The temperature detection assembly (3) further includes a longitudinal slide groove (305) and a top push block (303), wherein the longitudinal slide groove (305) is located at the top end of the heat conducting tube (304), the distance adjustment slider (302) is located inside the longitudinal slide groove (305) and slides, and the top push block (303) is overall trapezoidal and is located at the top end of the piston guide rod (301), and the top push block (303) is located inside the guide housing (801) and slides.
6. The high temperature early warning device for electric power equipment according to claim 5, characterized in that: The nozzle adjustment assembly (8) further includes a transverse slider (802) and a return spring (804), wherein the transverse slider (802) is respectively located on the left and right sides of the guide housing (801), and a guide slope (803) is provided on the side of the transverse slider (802). A spray hole (401) is provided at the bottom of the fire extinguishing cavity (4), and a release hole (805) adapted to the spray hole (401) is provided on the end surface of the transverse slider (802). A plurality of return springs (804) are fixedly mounted on the end of the transverse slider (802); When the temperature reaches a preset range, the top push block (303) squeezes the lateral slider (802) to slide to both sides, and the spray hole (401) is aligned with the release hole (805), releasing the fire extinguishing medium.
7. The high temperature early warning device for electric power equipment according to claim 3, characterized in that: The cooling component (5) further includes a connecting wire (501), a driving motor (507), a transmission gear (508) and a transmission chain (509), wherein the two ends of the connecting wire (501) are electrically connected to the push switch (504) and the driving motor (507), respectively, the driving motor (507) is installed on one side of the cooling fan (506), the transmission gear (508) is installed on the rotating shaft of the driving motor (507) on one side, and the transmission chain (509) is sleeved on the outside of the transmission gear (508).
8. The high temperature early warning device for electric power equipment according to claim 7, characterized in that: A driven gear (606) is installed at the rotating shaft of the rotating wind wheel (605), and the driven gear (606) is meshed with the transmission chain (509). A plurality of sound-generating protrusions (607) are provided on the outer side of the rotating wind wheel (605).
9. The high temperature early warning device for electric power equipment according to claim 2, characterized in that: A fixed frame (2) is provided in the middle of the electrical box (1); the temperature detection component (3), the fire extinguishing chamber (4) and the nozzle adjustment component (8) can be detachably mounted on the outside of the fixed frame (2); the alarm component (6), the cooling component (5) and the rack transmission device (7) can be detachably mounted on the inside of the electrical box (1); and the cooling fan (506) is connected to the outside.
10. The high temperature early warning device for electric power equipment according to claim 1, characterized in that: The interior of the heat conducting tube (304) is filled with a medium that increases in volume as the external temperature rises. The bottom end of the piston guide rod (301) is provided with a piston that fits tightly against the inner end surface of the heat conducting tube (304), and the bottom end of the piston is in close contact with the medium.