Numerical control transformer solid cabinet with early warning function
By introducing air inlets, S-type runners and mechanical early warning devices into the solid cabinet of CNC transformer, the early warning problem in the short circuit and fire of the transformer is solved, and the safety and heat dissipation effect are improved, and the failure rate of the early warning device is reduced.
Patent Information
- Application Number
- CN202510547863.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2025-08-08
AI Technical Summary
Transformers are prone to overload operation in high temperature weather, which makes it difficult to dissipate heat inside the solid cabinet, prone to short-circuit fire, and traditional solid cabinets cannot effectively warn, affecting safety.
A solid cabinet of CNC transformer is designed, including air inlet, S-type runner, early warning mechanism and mechanical early warning device. It senses smoke through the inductor and drives the rotary shaft to drive the warning bell to issue an alarm. The alloy memory spring is used to drive the rotary shaft to rotate and hit the warning bell at high temperature, replacing the circuit buzzer that is prone to short circuit.
It realizes timely early warning when the transformer is short-circuited and fired, improves the safety of the solid cabinet, reduces the failure rate of the early warning device, and improves the heat dissipation effect and service life.
Smart Images
Figure CN120452991A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of transformer solid cabinets, and in particular to a digitally controlled transformer solid cabinet with an early warning function. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization.
[0003] Transformers primarily house transformer components within a solid-state cabinet. These components are compact, lightweight, low-noise, low-loss, and highly reliable, making them widely used in residential areas, commercial centers, and other locations. However, many transformers are prone to overloading during hot weather due to the high volume of electrical appliances used. This prolonged overload can hinder the dissipation of heat within the cabinet, leading to short circuits and fires. Therefore, the cabinet needs to issue an early warning to prevent the spread of fire and improve its safety. Furthermore, the internal mounting space structure of traditional solid-state cabinets is relatively fixed, making it impossible to adjust the mounting position of the transformer components according to needs, making it difficult to evacuate heat.
[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Summary of the Invention
[0005] The main purpose of the present invention is to provide a digitally controlled transformer solid cabinet with an early warning function, which can issue an early warning when the transformer short-circuit catches fire, thereby improving the safety of the solid cabinet.
[0006] In order to achieve the above object, the solution of the present invention is:
[0007] A CNC transformer solid cabinet with an early warning function comprises a main cabinet body, a rotatably connected box door is provided at the front end of the main cabinet body, a plurality of air inlets are provided on the side walls of the main cabinet body, an early warning cavity is provided on the top of the main cabinet body, a first flow channel, a second flow channel and a third flow channel which are connected in sequence are provided in the early warning cavity, an air inlet is provided on the bottom wall at the front end of the first flow channel, an air outlet is provided on the top wall at the rear end of the third flow channel, an exhaust fan is installed at the air outlet of the main cabinet body, an early warning mechanism is provided in the first flow channel, a sensor is provided at the air inlet, and an early warning light electrically connected to the sensor is provided at the upper end of the main cabinet body.
[0008] Furthermore, the early warning mechanism includes a rotating shaft, an early warning bell and a driving assembly. The rotating shaft is rotatably connected in the first flow channel. The rotating shaft has an extending end extending outside the main cabinet body, and a pull rope is provided on the extending end. A striking block is fixed on the pull rope. The early warning bell is installed on the outside of the main cabinet body, and the early warning bell is set on the side of the extending end of the rotating shaft. The driving assembly is arranged in the first flow channel, and the driving assembly drives the rotating shaft to rotate when the temperature inside the main cabinet body rises.
[0009] Furthermore, the driving assembly includes a fixed plate, a rotating plate and an alloy memory spring. The fixed plates are symmetrically arranged, and the extension direction of the fixed plates is parallel to the extension direction of the first flow channel. A fourth flow channel is formed between the two fixed plates. The rotating plate is arranged at one end of the fixed plate close to the air inlet, and the end of the rotating plate is rotatably connected to the fixed plate. One end of the alloy memory spring is fixedly connected to the side wall of the first flow channel, and the other end of the alloy memory spring is fixedly connected to the side wall of the rotating plate. A driving fan blade is provided at the end of the rotating shaft close to the air inlet.
[0010] Furthermore, a support seat is provided in the fourth flow channel, and the rotating shaft is rotatably connected to the support seat.
[0011] Furthermore, rubber pads are provided on the upper and lower side walls of the rotating plate.
[0012] Furthermore, there are four air inlets, which are respectively arranged at the upper end and the lower end of the side walls on both sides of the main cabinet.
[0013] Furthermore, a dustproof net is provided in the air inlet.
[0014] Compared with the prior art, the beneficial effect is that the present invention can fully introduce the air inside the main cabinet into the S-shaped flow channel by setting the air inlet and the S-shaped flow channel, and slightly reduce the flow speed of the gas in the warning chamber. When a fire occurs inside the main cabinet and smoke is emitted, the sensor can fully sense the smoke in the gas and issue an alarm in time. In addition, in the event of a fire, due to the increase in temperature inside the main cabinet, the drive assembly can drive the shaft to rotate, driving the striking block to continuously strike the warning bell and issue a warning sound. Compared with traditional circuit buzzer alarms that are prone to short circuits at high temperatures and cannot issue warnings, the present invention replaces them with a simple mechanical structure, which can effectively reduce the failure of the alarm, so that the solid cabinet of the present invention has better safety performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the external structure of the present invention.
[0016] Figure 2 Top view of the internal structure of the warning cavity.
[0017] Figure 3 This is a three-dimensional diagram of the internal structure of the early warning cavity.
[0018] Figure 4 It is another perspective view of the external structure of the present invention.
[0019] Figure 5 It is a three-dimensional diagram of the external structure of the loading assembly.
[0020] Figure 6 It is a three-dimensional diagram of the cross-sectional structure of the loading assembly.
[0021] Figure 7 It is a side view of the cross-sectional structure of the loading assembly.
[0022] In the figure: main cabinet 1, door 11, air inlet 12, warning chamber 2, first flow channel 21, second flow channel 22, third flow channel 23, air inlet 24, exhaust fan 26, sensor 27, warning light 28, rotating shaft 31, pull rope 311, striking block 312, driving fan blade 313, warning bell 32, fixing plate 33, rotating plate 34, alloy memory spring 35, fourth flow channel 36, loading assembly 4, loading plate 41, connecting boss 411, locking cover 412, connecting head 42, first slide groove 43, second slide groove 44, third slide groove 45, top groove 46, transformer assembly 47, connecting plate 5, connecting port 51, pin groove 52, latch 6, top boss 61, arc groove 62, push rod 71, top plate 711, tapered block 72, first spring 74, second spring 75, support frame 8, support groove 81. DETAILED DESCRIPTION
[0023] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.
[0024] like Figure 1-7As shown, a CNC transformer solid cabinet with an early warning function includes a main cabinet 1. The front end of the main cabinet 1 is provided with a rotatably connected box door 11, and the box door 11 can be connected to the main cabinet 1 by a hinge. The side wall of the main cabinet 1 is provided with a plurality of air inlets 12. Specifically, there are four air inlets 12, which are respectively arranged at the upper and lower ends of the side walls on both sides of the main cabinet 1, so that the external air can better enter the interior of the main cabinet 1, thereby improving the heat dissipation effect inside the main cabinet 1. In addition, a dustproof net is provided in the air inlet 12, which plays the role of filtering dust, avoiding the phenomenon of dust accumulation inside the main cabinet 1 causing short circuit of the transformer components, and further improving the service life of the present invention. An early warning chamber 2 is provided at the top of the main cabinet 1, and the early warning chamber 2 is provided with a first flow channel 21, a second flow channel 22 and a third flow channel 23 connected in sequence. The first flow channel 21, the second flow channel 22 and the third flow channel 23 are connected in an "S" shape. An air inlet 24 is provided on the bottom wall at the front end of the first flow channel 21, and an air outlet is provided on the top wall at the rear end of the third flow channel 23. An exhaust fan 26 is installed at the air outlet of the main cabinet 1. An early warning mechanism is provided in the first flow channel 21, and a sensor 27 is provided at the air inlet 24. The sensor 27 can specifically be a smoke sensor. An early warning light 28 electrically connected to the sensor 27 is provided at the upper end of the main cabinet 1. After adopting the structure, the exhaust fan 26 is used to extract air, and the air inside the main cabinet 1 enters the first flow channel 21 through the air inlet 24, and then is discharged from the air outlet of the third flow channel 23 along the exhaust fan 26. In this way, once the gas enters the air inlet 24, the sensor 27 can immediately sense whether there is smoke in the air, making the early warning function more sensitive.
[0025] In this embodiment, the warning mechanism includes a rotating shaft 31, a warning bell 32, and a drive assembly. The rotating shaft 31 is rotatably connected to the first flow channel 21. The rotating shaft 31 has an extended end extending outside the main cabinet 1 and is provided with a pull rope 311. A striking block 312 is fixed to the pull rope 311. The warning bell 32 is mounted on the outside of the main cabinet 1 and is located on the side of the extended end of the rotating shaft 31. The drive assembly is located in the first flow channel 21 and drives the rotating shaft 31 to rotate when the temperature inside the main cabinet 1 rises. Specifically, the drive assembly includes a fixed plate 33, a rotating plate 34, and an alloy memory spring 35. The fixed plates 33 are symmetrically arranged, and the upper and lower ends of the fixed plates 33 are fixedly and sealedly connected to the upper and lower side walls of the first flow channel 21. The extension direction of the fixed plates 33 is parallel to the extension direction of the first flow channel 21. A fourth flow channel 36 is formed between the two fixed plates 33. A support seat is provided in the fourth flow channel 36, and the rotating shaft 31 is rotatably connected to the support seat. The rotating plate 34 is mounted on the end of the fixed plate 33 near the air inlet 24. The end of the rotating plate 34 is rotatably connected to the fixed plate 33. Rubber pads are installed on the upper and lower sidewalls of the rotating plate 34 to prevent air leakage from the upper and lower ends of the rotating plate 34. One end of the alloy memory spring 35 is fixedly connected to the sidewall of the first flow channel 21, and the other end of the alloy memory spring 35 is fixedly connected to the sidewall of the rotating plate 34. A driving blade 313 is installed on the end of the rotating shaft 31 near the air inlet 24.
[0026] After adopting the above structure, during daily use, the alloy memory spring 35 presses against the rotating plates 34 on both sides, so that the front ends of the two rotating plates 34 press against each other, sealing the fourth flow channel 36. At this time, the gas flows from the outside of the fixed plate 33 in the first flow channel 21 to the second flow channel 22. When a short circuit fire occurs inside the solid cabinet, the temperature inside the solid cabinet rises sharply, and part of the high-temperature gas flows from the air inlet 24 into the first flow channel 21, causing the alloy memory spring 35 to shrink after being heated. During the shrinkage process, the front ends of the two rotating plates 34 separate from each other, so that the front end of the fourth flow channel 36 is connected to the first flow channel 21. The fast high-temperature gas blows the drive blades 313, thereby driving the rotating shaft 31 to rotate. During the rotation process, the rotating shaft 31 drives the striking block 312 to strike the warning bell 32, emitting a warning sound effect.
[0027] Compared with the prior art, the beneficial effect is that the present invention can fully introduce the air inside the main cabinet 1 into the S-shaped flow channel by providing the air inlet 12 and the S-shaped flow channel, and slightly reduce the flow rate of the gas in the warning chamber 2. When a fire breaks out inside the main cabinet 1 and smoke is emitted, the sensor 27 can fully sense the smoke in the gas and issue an alarm in time. In addition, in the event of a fire, due to the increase in the temperature inside the main cabinet 1, the drive assembly can drive the rotating shaft 31 to rotate, driving the striking block 312 to continuously strike the warning bell 32, issuing a warning sound. Compared with traditional circuit buzzer alarms that are prone to short circuits at high temperatures and cannot issue warnings, the present invention replaces them with a simple mechanical structure, which can effectively reduce the failure of the alarm, so that the solid cabinet of the present invention has better safety performance.
[0028] More preferably, to fully and rationally utilize the internal space of the main cabinet 1, the main cabinet 1 further includes a loading assembly 4 and a transformer assembly 47. The front end of the main cabinet 1 is provided with a rotatably connected door 11, which is connected to the main cabinet 1 via hinges. A screw-locked connecting plate 5 is provided on the rear sidewall of the main cabinet 1. The connecting plate 5 is provided with a plurality of connection ports 51 arranged in a matrix. The specific number of connection ports 51 can be determined based on the actual assembly production. Pin slots 52 are provided on the upper and lower sidewalls of the connection ports 51. The loading assembly 4 includes a loading plate 41 and a drive assembly. The loading plate 41 is used to carry and mount the transformer assembly 47. The top surface of the loading plate 41 is provided with a plurality of mounting holes. Connectors 42 are symmetrically provided at the front end of the loading plate 41. The connectors 42 can be inserted into the connection ports 51. The spacing between the connectors 42 is an integer multiple of the spacing between at least two connection ports 51. In this embodiment, the spacing between two connectors 42 is the spacing between three connection ports 51. A first slot 43 is provided within the connector 42, and a latch 6 is slidably connected thereto. A drive assembly is located within the carrier plate 41, controlling the latch 6 to retract into the first slot 43 or extend out of the slot 43 to engage with the latch 6 in the latch slot 52. When the latch 6 is inserted into the latch slot 52, the carrier plate 41 is secured to the connecting plate 5. This allows workers to optimally allocate the mounting locations of the various carrier plates 41 as needed, fully utilizing the internal space of the main cabinet 1 and facilitating installation of the transformer assembly 47.
[0029] In this embodiment, the driving assembly includes a push rod 71, a conical block 72, a first spring 74 and a second spring 75. A second slide groove 44 is provided in the middle of the connecting head 42, and the second slide groove 44 is connected to the first slide groove 43. Third slide grooves 45 are provided on both sides of the interior of the loading plate 41. The rear end of the third slide groove 45 is provided with a top groove 46. The push rod 71 slides in the third slide groove 45. The front end of the push rod 71 is connected to the conical block 72. The conical block 72 slides in the second slide groove 44. The rear end of the rod 71 is provided with a top plate 711. A first spring 74 is disposed within the abutting groove 46. One end of the first spring 74 abuts against the front wall of the abutting groove 46, and the other end abuts against the top plate 711. A second spring 75 is sleeved on the latch 6. The upper end of the second spring 75 abuts against the side wall of the first slide groove 43. The lower end of the latch 6 is provided with an abutting boss 61. The upper end of the abutting boss 61 abuts against the lower end of the second spring 75. The lower end of the abutting boss 61 is provided with an arcuate groove 62 that mates with the tapered block 72. Furthermore, the loading plate 41 is provided with a connecting boss 411 at the rear end of the connector 42, corresponding to the loading plate 41. A locking cap 412 is threadedly connected to the connecting boss 411.
[0030] In this embodiment, a support frame 8 is provided on the inner side wall of the door 11. The support frame 8 is provided with a strip-shaped support groove 81 corresponding to each row of connection ports 51. With this structure, after the door 11 is closed, the connecting boss 411 and the locking cover 412 of the loading assembly 4 can extend into the support groove 81, supporting the rear end of the loading assembly 4 via the support groove 81. This not only improves the installation strength of the loading assembly 4, but also ensures that the front and rear forces of the loading plate 41 are more evenly distributed, making it less susceptible to damage, further extending the service life of the present invention. In addition, the locking cover 412 has a cylindrical shape, which facilitates the locking cover 412 to smoothly fit into the strip groove when the door 11 is closed.
[0031] Specifically, in order to facilitate the disassembly and assembly of the connector 42 and the latch 6, the connector 42 and the loading plate 41 are fixedly connected by screws. The connector 42 includes symmetrically arranged split bodies, and the two split bodies are fixedly connected by screws.
[0032] The operating principle of the present invention is as follows: Before installation, loosen the locking cover 412. The first spring 74 pushes the top plate 711 outward, thereby moving the push rod 71 and the tapered block 72 rearward. At this point, the second spring 75 pushes the latch 6 downward, causing it to retract into the connector 42. The connector 42 is then inserted into the corresponding connection port 51 according to the required position. Then, tighten the locking cover 412. The locking cover 412 pushes the top plate 711 forward, thereby moving the push rod 71 and the tapered block 72 forward. The tapered block 72 engages the arcuate groove 62 of the latch 6, pushing the latch 6 outward, allowing it to be inserted into the pin groove 52 and secured. Once the carrier assembly 4 is installed, install the transformer assembly 47 on the carrier assembly 4 and close the door 11. To disassemble, simply loosen the locking cover 412 to separate the latch 6 from the pin groove 52, and then remove the carrier assembly 4.
[0033] Compared to existing technologies, the present invention allows for optimal arrangement of the internal installation space of the main cabinet 1 during installation, based on the number and size of transformer assemblies 47. By adjusting the installation position of the carrier assembly 4, the internal space of the main cabinet 1 is fully utilized. Furthermore, a certain gap between the carrier plates 41 facilitates internal air circulation, improving heat dissipation within the main cabinet 1. The carrier plates 41 are inserted and mated via connectors 42 and ports 51, resulting in a simple structure and convenient and quick assembly and disassembly, effectively improving assembly and maintenance efficiency.
[0034] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.
Claims
1. A digitally controlled transformer solid cabinet with an early warning function, characterized in that: It includes a main cabinet body, the front end of the main cabinet body is provided with a rotatably connected box door, the side walls of the main cabinet body are provided with several air inlets, the top of the main cabinet body is provided with an early warning cavity, the early warning cavity is provided with a first flow channel, a second flow channel and a third flow channel which are connected in sequence, an air inlet hole is provided on the bottom wall at the front end of the first flow channel, an air outlet hole is provided on the top wall at the rear end of the third flow channel, an exhaust fan is installed at the air outlet hole of the main cabinet body, an early warning mechanism is provided in the first flow channel, a sensor is provided at the air inlet hole, and an early warning light electrically connected to the sensor is provided at the upper end of the main cabinet body.
2. The digital control transformer solid cabinet with early warning function according to claim 1, characterized in that: The early warning mechanism includes a rotating shaft, an early warning bell and a driving assembly. The rotating shaft is rotatably connected in the first flow channel. The rotating shaft has an extending end extending outside the main cabinet body, and a pull rope is provided on the extending end. A striking block is fixed on the pull rope. The early warning bell is installed on the outside of the main cabinet body, and the early warning bell is set on the side of the extending end of the rotating shaft. The driving assembly is arranged in the first flow channel, and the driving assembly drives the rotating shaft to rotate when the temperature inside the main cabinet body rises.
3. The digital control transformer solid cabinet with early warning function according to claim 2, characterized in that: The driving assembly includes a fixed plate, a rotating plate and an alloy memory spring. The fixed plates are symmetrically arranged, and the extension direction of the fixed plates is parallel to the extension direction of the first flow channel. A fourth flow channel is formed between the two fixed plates. The rotating plate is arranged at one end of the fixed plate close to the air inlet, and the end of the rotating plate is rotatably connected to the fixed plate. One end of the alloy memory spring is fixedly connected to the side wall of the first flow channel, and the other end of the alloy memory spring is fixedly connected to the side wall of the rotating plate. A driving fan blade is provided at the end of the rotating shaft close to the air inlet.
4. The digital control transformer solid cabinet with early warning function as claimed in claim 3, characterized in that: A support seat is provided in the fourth flow channel, and the rotating shaft is rotatably connected to the support seat.
5. The digital control transformer solid cabinet with early warning function as claimed in claim 3, characterized in that: The upper and lower side walls of the rotating plate are provided with rubber pads.
6. The digital control transformer solid cabinet with early warning function according to claim 1, characterized in that: There are four air inlets, which are respectively arranged at the upper end and the lower end of the side walls on both sides of the main cabinet.
7. The digital control transformer solid cabinet with early warning function according to claim 6, characterized in that: A dustproof net is provided in the air inlet.