Modular building equipment automation training device based on independent encapsulation of electrical elements

Abstract

The application discloses a kind of modular building equipment practical training devices based on independent packaging electrical element, comprising: operation platform, with the mounting plate of operation platform fixed connection and the multiple independent packaging electrical elements fixed on the mounting plate;Wherein, multiple independent packaging electrical elements are electrically connected by surface controllable light quick connection wire when using;Multiple independent packaging electrical elements all use the same shell, the four corners on the surface of the shell close to mounting plate are all fixedly connected with magnetic attraction permanent magnet, at least two quick wiring sockets are formed on the surface opposite to magnetic attraction permanent magnet on shell.According to the application, the new practical training device and system can be used to solve the current teaching pain points, which can consider quick installation, safety protection, principle visualization and convenient maintenance.

Description

Technical Field

[0001] This invention relates to the technical field of electrical engineering, and in particular to a modular building equipment automation training device based on independently packaged electrical components. Background Technology

[0002] In the electrical control and building equipment automation training sessions, participants often need to connect electrical components, controllers, and controlled equipment channels with wires, and perform programming, setup, and debugging work, etc.

[0003] Currently, there are two types of training platforms: one involves directly wiring and debugging electrical components and controllers. The advantage of this type of platform is that trainees have more direct contact with components and controllers, resulting in better training outcomes. However, its disadvantages include longer training time and the potential for loose connections, missing connections, and short circuits during debugging, which can cause danger and damage to components. Trainees spend a significant amount of time on wiring, while time is allocated to core electrical principles and troubleshooting electrical logic errors.

[0004] Another approach involves mounting electrical components in an electrical box and extending terminals to a control panel for wiring using quick-connect connectors and plugs. This platform allows trainees to quickly connect wires. However, it lacks flexibility, limiting the use of fixed components and preventing expansion. Because trainees cannot directly interact with the components or observe changes during operation, the training effect is poor.

[0005] In addition, the physical building controlled equipment such as central air conditioning, chiller units, and circulating water pumps are large in size and occupy a lot of space, so the whole machine cannot be directly placed in the training laboratory for practical teaching.

[0006] Both existing platforms share a common problem during wiring: it is difficult to check the wiring path. Failure to verify correct wiring can lead to short circuits and damage to equipment.

[0007] In summary, existing electrical control training equipment faces a dilemma of "conflict between safety and efficiency, and between intuitiveness and maintenance," which seriously restricts the improvement of training quality. A new type of training device and system that can take into account quick installation, safety protection, clear principles, and convenient maintenance is needed to solve the current training pain points. Summary of the Invention

[0008] To address the shortcomings of existing technologies, the present invention aims to provide a modular building equipment automation training device based on independently packaged electrical components. To achieve the above-mentioned objective and other advantages of the present invention, a modular building equipment automation training device based on independently packaged electrical components is provided, comprising: The control panel, the mounting plate fixed to the control panel, and multiple independently packaged electrical components fixed to the mounting plate, surface-controlled light-emitting quick-connect wires, and modularly packaged building equipment controlled objects. Among them, multiple independently packaged electrical components are electrically connected during use via surface-controlled light-emitting quick-connect wires; Multiple individually packaged electrical components use the same housing. Magnetic permanent magnets are fixed to the four corners of the housing on a surface near the mounting plate. At least two quick-connect connectors are provided on the surface of the housing opposite the magnetic permanent magnets to facilitate the attachment of the individually packaged electrical components to the mounting plate.

[0009] The front housing surface is pre-installed with several quick-connect connectors arranged in sequence. These quick-connect connectors are electrically connected to the internal terminals of the corresponding electrical components. For example, the electromagnetic coil interface and contact interface of a contactor are respectively equipped with corresponding quick-connect interfaces on the front of the housing.

[0010] Both the upper and lower surfaces of the housing have ventilation holes, and multiple fan mounting holes are provided at the ventilation holes on the upper surface. The housing is made of a non-magnetic material, such as acrylic or plastic; the material can be chosen arbitrarily and is not limited. The front of the housing is transparent to facilitate observation of the appearance and operating status of the electrical components, while the back of the housing is opaque. A circular hole is provided on the front of the housing for installing a quick-connect connector. Ventilation holes are provided at the bottom and top of the housing to facilitate heat dissipation of the electrical components through natural convection. Four fan mounting holes are provided around the ventilation holes on the top of the housing to accommodate the installation of small cooling fans.

[0011] Preferably, the outer shell is made of a non-magnetic material, such as acrylic or plastic, and the surface of the outer shell near the mounting plate is non-transparent, while the surface opposite to the surface near the mounting plate is transparent.

[0012] Preferably, the plurality of independently packaged electrical components include controllers, PLCs, human-machine interfaces, indicator lights, buttons, contactors, relays, intermediate relays, and sensors.

[0013] Preferably, the surface-controlled light-emitting quick-connect wire includes a conductor, a diffuse optical fiber wound around the surface of the conductor, a transparent insulating layer wrapped around the diffuse optical fiber and the conductor, and quick-connect plugs respectively disposed at both ends of the conductor.

[0014] Preferably, it includes several controllable colored light-emitting diodes (LEDs), which are connected to the diffused optical fiber ends in the conductor; when the LEDs emit light, the light can be transmitted through the diffused optical fiber, causing the entire conductor to emit light and indicating the direction of the conductor.

[0015] Preferably, the light-emitting diode is connected to a micro circuit board, and the power supply of the micro circuit board comes from the metal contacts on the upper and lower ends of the quick plug; when the external power supply is connected to the two metal contacts on the upper and lower ends, the controllable light-emitting diode can emit light, thereby making the entire conductor emit light.

[0016] Preferably, the quick plug includes multiple metal contacts on both its upper and lower surfaces. One of the metal contacts on the upper surface is a convex contact, and the other is a concave contact, to prevent reverse polarity during power supply. One of the metal contacts on the lower surface is a convex contact, and the other is a concave contact. The concave contact on the upper surface is electrically connected to the convex contact on the lower surface, and the convex contact on the upper surface is electrically connected to the concave contact on the lower surface. When multiple quick plugs are stacked, the upper and lower surfaces of two different plugs come together, causing the contacts to close. When the uppermost contact is powered, all wires connected to that point are illuminated.

[0017] Preferably, the quick-connect power pen, powered by metal contacts, includes a battery, metal wires, a push-button switch, and end-face contacts. There are two end-face contacts: one is a raised contact, and the other is a recessed contact. The size and spacing of the raised and recessed contacts match the raised and recessed metal contacts on the end face of the quick-connect plug. The positive terminal of the battery is electrically connected to one end of the push-button switch, the other end of the push-button switch is electrically connected to the raised contact, and the negative terminal of the battery is electrically connected to the recessed end-face contact. By aligning the end face of the quick-connect power pen with the end face of the quick-connect plug, the longer contact on the pen connects to the recessed contact on the plug's end face, and the shorter contact on the pen connects to the longer contact on the plug's end face, thus powering the LEDs on the micro-circuit board.

[0018] Preferably, the independently packaged electrical components and the modular building equipment controlled objects are all connected by plug-and-play electrical connections through the surface-controlled light-emitting quick-connect wires, and the wiring status and conduction path can be visualized in real time through the light-emitting status of the wires.

[0019] The controlled building equipment is modularly packaged using the same method, with wiring terminals led out to the module surface to receive power and control signals from the control circuit. This allows users to flexibly build their own building equipment control systems, quickly and easily connect wires, efficiently check wire routing, and debug circuits to complete practical training.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are: 1. Electrical components are individually packaged. Flexible configuration and convenient wiring.

[0021] 2. Controllable surface-emitting leads are used for connection, making it easy to see the direction of the leads and saving training time.

[0022] 3. The controlled device is independently packaged. This enhances trainees' understanding of the controlled device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional exploded view of the outer casing of the modular building equipment automation training device based on independently packaged electrical components according to the present invention. Figure 2 This is a structural diagram of the housing of a modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 3 This is a schematic diagram of the structure of the independently packaged PLC of the modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 4 This is a schematic diagram of the independently packaged human-machine interface of the modular building equipment automation training device based on independently packaged electrical components according to the present invention. Figure 5 This is a schematic diagram of the structure of an independently packaged indicator light in a modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 6 This is a schematic diagram of the controllable surface-emitting wire of the modular building equipment automation training device based on independently packaged electrical components according to the present invention during use; Figure 7 This is a schematic diagram of the micro-circuit board structure within the controllable surface-emitting wire of the modular building equipment automation training device based on independently packaged electrical components according to the present invention. Figure 8 A schematic diagram of the wire structure of the controllable surface-emitting conductor of the modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 9 This is a schematic diagram of the internal structure of the quick-power supply test pen of the modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 10 This is a schematic diagram of the structure of the controlled object model of the modular building equipment automation training device based on independently packaged electrical components according to the present invention; Figure 11 This is a three-dimensional structural diagram of the controlled object model of building equipment in the modular building equipment automation training device based on independently packaged electrical components according to the present invention.

[0024] Figure Descriptions: 1. Opaque back shell; 2. Transparent front shell; 3. Heat dissipation holes; 4. Screw fixing holes; 5. Guide rail; 6. Contactor; 7. Banana plug; 8. Magnet fixing slot; 9. Wire; 10. Guide rail fixing hole; 11. PLC controller; 12. Opaque front shell; 13. Fixing clamp; 14. HDMI touch screen; 15. HDMI interface; 16. Indicator light; 17. Banana plug; 18. End face; 19. Illuminated wire; 20. Fiber optic cable; 21. Copper wire; 22. Frequency converter; 23. Air inlet; 24. Small centralized air conditioning innovative experimental system; 25. Air outlet; 26. Fan; 27. Radiator; 28. Radiator; 29. ​​Wiring opening; 30. Transparent wire protection layer; 31. Micro circuit board; 32. Light-emitting diode; 33. Contact point; 34. Fiber optic interface; 35. Quick power supply test pen; 36. Battery compartment; 37. Switch. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Reference Figure 1 A modular building equipment automation training device based on independently packaged electrical components, comprising: The control panel, the mounting plate fixed to the control panel, and a plurality of independently encapsulated electrical components fixed to the mounting plate; Among them, multiple independently packaged electrical components are electrically connected during use via surface-controlled light-emitting quick-connect wires.

[0027] Independently packaged electrical control components: These are required for the electrical control training system and include the following independently packaged electrical components: Electrical components include, but are not limited to, controllers, PLCs, human-machine interfaces, indicator lights, buttons, contactors, relays, intermediate relays, sensors, housings, magnetic permanent magnets, quick-connect plugs, internal connecting wires, and component mounting rails. Electrical components are integral parts of electrical control, including but not limited to controllers, PLCs, human-machine interfaces, indicator lights, buttons, contactors, relays, intermediate relays, sensors, and other components.

[0028] The outer casing is made of non-magnetic material, such as acrylic or plastic. The casing material can be chosen freely and is not limited. The front casing is transparent for easy observation of the electrical components' appearance and operating status, while the back casing is opaque. A round hole is provided on the front of the casing for installing a quick-connect connector. Ventilation holes are provided at the bottom and top of the casing to facilitate natural convection cooling of the electrical components. Four fan mounting holes are provided around the ventilation holes on the top of the casing to accommodate the addition of a small cooling fan. Four permanent magnets are installed at the four top corners of the back of the housing to facilitate the attachment of individually packaged electrical components to the iron plate.

[0029] The back panel of the housing has mounting rails inside for mounting electrical components.

[0030] The front housing surface is pre-installed with several quick-connect connectors arranged in sequence. These quick-connect connectors are electrically connected to the internal terminals of the corresponding electrical components. For example, the electromagnetic coil interface and contact interface of a contactor are respectively equipped with corresponding quick-connect interfaces on the front of the housing.

[0031] Because there are many types of electrical components, their installation methods vary, and their interfaces and terminals also differ, this manual uses contactors, PLCs, and human-machine interfaces as examples to illustrate the methods for independently packaged components, but does not limit the scope of the claims.

[0032] like Figure 1-2 As shown, a separately packaged contactor: The independently packaged contactor is characterized in that: the thickness of the front transparent shell is 3-5mm, and the external dimensions are 120mm×200mm×150mm (which can be adjusted according to the component specifications), and the corners are rounded with a radius of 3-5mm; the thickness of the back non-transparent shell is 4-6mm, and it is detachably connected to the front shell by screws.

[0033] The rear housing is internally secured to a 35mm standard guide rail with screws, and all contactors are mounted on this guide rail. The ventilation holes have a diameter of 3-5mm and are evenly distributed; the fan mounting holes around the perimeter are threaded holes of size M3, suitable for small cooling fans with an outer diameter of 40-60mm.

[0034] Four permanent magnets are installed at the four top corners of the back of the housing to facilitate the attachment of individually packaged electrical components to the iron plate.

[0035] The front housing surface is pre-installed with several quick-connect connectors arranged in sequence. These connectors connect to the input terminal of the contactor's sensing coil, the input / output terminals of the main contacts, and the input / output terminals of the auxiliary contacts, respectively. See the diagram below: In this way, the contactor is packaged into an independent component that is readily available and easy to wire, and can be attached to any iron plate for convenient use during practical training.

[0036] like Figure 3 As shown, the PLC is independently packaged: The independently packaged PLC, taking Delta DVP40ES2 as an example, is characterized by: the thickness of the front transparent shell is 3-5mm, and the external dimensions are 300mm×200mm×150mm (which can be adjusted according to component specifications), with rounded corners of 3-5mm radius; the thickness of the back non-transparent shell is 4-6mm, and it is detachably connected to the front shell by screws.

[0037] The rear housing is internally secured to a 35mm standard guide rail with screws, and all contactors are mounted on this guide rail. The ventilation holes have a diameter of 3-5mm and are evenly distributed; the fan mounting holes around the perimeter are threaded holes of size M3, suitable for small cooling fans with an outer diameter of 40-60mm.

[0038] Four permanent magnets are installed at the four top corners of the back of the housing to facilitate the attachment of individually packaged electrical components to the iron plate.

[0039] The front housing surface is pre-installed with several quick-connection connectors arranged in sequence. These quick-connection connectors are connected to the PLC's power input interface, input common terminal interface, input point interface, output common terminal interface, output point interface, and communication terminal interface, respectively.

[0040] In this way, the PLC is encapsulated as a readily available, easy-to-use, and easily wired independent component that can be attached to any metal plate for convenient use during practical training. Furthermore, the transparent front panel allows for observation of the PLC's indicator light status during operation. Programming and debugging can be performed directly via the communication interface on the front panel, without needing to open the enclosure.

[0041] like Figure 4 As shown, the independently packaged human-computer interaction interface: The independently packaged human-machine interface, taking Delta DOP-03WQ as an example, is characterized by: the thickness of the front transparent shell is 3-5mm, the external dimensions are 150mm×120mm×150mm (which can be adjusted according to component specifications), and the corners are rounded with a radius of 3-5mm; the thickness of the back non-transparent shell is 4-6mm, and it is detachably connected to the front shell by screws.

[0042] The front panel has openings of 118.8mm × 92.8mm, and the human-machine interface is fixed to the front panel using a snap-fit ​​method. The ventilation holes have a diameter of 3-5mm and are evenly distributed; the fan mounting holes around the perimeter are threaded holes of size M3, suitable for small cooling fans with an outer diameter of 40-60mm.

[0043] Four permanent magnets are installed at the four top corners of the back of the housing to facilitate the attachment of individually packaged electrical components to the iron plate.

[0044] The front casing surface is pre-installed with several quick-connect connectors arranged in sequence, which are respectively connected to the power input interface and the serial communication interface of the human-machine interface.

[0045] The bottom of the casing has no baffle, making it easy to connect the network interface of the touch screen to the network cable of the debugging computer.

[0046] In this way, the human-computer interaction interface is encapsulated into an independent component that is readily available, easy to connect, and can be attached to any metal plate for convenient use during practical training. Students can easily operate the touchscreen, and because there is no baffle on the bottom of the casing, it can be easily connected to a computer via network cable during programming and debugging without opening the casing. When communication with other devices such as PLCs is required, it can be connected through the serial communication interface on the panel.

[0047] like Figure 5 As shown, the indicator light is individually packaged. The independently packaged indicator light, taking a 220V indicator light with a 22mm opening as an example, is characterized in that: the thickness of the front transparent shell is 3-5mm, and the external dimensions are 50mm×180mm×150mm (which can be adjusted according to the component specifications), and the corners are rounded with a radius of 3-5mm; the thickness of the back non-transparent shell is 4-6mm, and it is detachably connected to the front shell by screws.

[0048] The front panel has two 22mm diameter holes, and the indicator lights are mounted on the front panel using external thread snap-fit. Four permanent magnets are installed at the four top corners of the back of the housing to facilitate the attachment of individually packaged electrical components to the iron plate.

[0049] The front housing surface is pre-installed with several quick-connect connectors arranged in sequence, which are connected to the power input of the indicator lights.

[0050] like Figure 6-8 As shown, the wires for controllable surface illumination: The controllable surface-emitting light-emitting conductor is equipped with quick-connect plugs at both ends, allowing for rapid insertion and removal of quick-connect ports on independently packaged electrical components and modular controlled equipment. From the inside out, the conductor consists of a copper conductor, diffused optical fiber, and a transparent insulating protective layer. The diffused optical fiber, spirally wound around the conductor, uses a 1.1mm outer diameter and 200-600μm wire diameter to ensure uniform light transmission. The quick-connect plugs at both ends integrate a micro-circuit board and several controllable colored LEDs. The LEDs precisely mate with the diffused optical fiber ends, and the power supply terminals of the micro-circuit board are connected to the metal contacts on the upper and lower ends of the plug.

[0051] The light-emitting diode is a small through-hole LED, specifically a φ2mm round-head through-hole LED with dimensions of 2mm in diameter and 3mm in total height. The light-emitting surface of the lamp head is compact, and the leads are short, making it suitable for the internal space of a micro circuit board and plug. It supports 3.4V low-voltage power supply and can distinguish multiple colors.

[0052] The microcircuit board is packaged and fixed according to a standard structure. Conductive copper points are arranged on the surface of the board, which are respectively connected to the metal contacts at both ends to achieve power conduction. The upper and lower surfaces of the quick connector are provided with matching metal contacts. The upper surface has a set of concave and convex contacts, and the lower surface also has a set of concave and convex contacts. The concave contacts on the upper surface are electrically connected to the lower surface, and the convex contacts on the upper surface are sequentially connected to the lower surface, thus forming a complete power supply circuit. When an external power source is connected through the metal contacts, the microcircuit board is energized, driving the light-emitting diode to light up stably. The light is scattered in all directions by the diffuse optical fiber, making the entire conductor appear to emit light.

[0053] The miniature circuit board measures 10mm in length, 6mm in width, and 0.8mm in thickness. It is a single-layer circuit board with only power supply lines, solder pads, and contact leads. The layout is simple and it fits snugly against the inner wall of the plug.

[0054] The quick plug's end face has gold-plated brass contacts. The convex contacts have a diameter of 3mm and a protrusion height of 2mm, while the concave contacts have an inner diameter of 3.1mm and a depth of 2.1mm. The center-to-center distance between the two contacts is 6mm.

[0055] The quick-connect plug has a set of convex and concave contacts on both its upper and lower surfaces. The concave contacts on the upper surface are electrically connected to the convex contacts on the lower surface, and vice versa. This convex-concave structure creates a physical limit, effectively preventing reverse polarity during power supply. Wiring pins with positive and negative markings extend from the outer side of the plug's cylinder. When a 3.4V rated voltage is applied, the internal LED illuminates, and the light is diffused throughout the entire conductor via a fiber optic cable, providing a clear visual representation of the wiring path and connections.

[0056] When multiple quick-connect plugs are stacked and connected, the concave and convex contacts on the ends of adjacent plugs close tightly, completing the circuit. After power is connected to the top plug, all the stacked and connected wires can light up synchronously, fully demonstrating the conduction path of complex circuits such as series and branch circuits. The entire wire adopts an integrated structure, and the transparent insulation layer provides both insulation protection and light transmission.

[0057] like Figure 9 As shown, a quick-power test pen: This is a quick-connect power supply test pen. The pen's casing is made of ABS flame-retardant engineering plastic, with an overall length of 110mm, a handle diameter of 22mm, and a head contact diameter of 16mm. It uses a split-joint structure secured with M2 self-tapping screws, ensuring a sealed, dustproof design. Internally, the pen integrates a battery compartment, a power supply battery, AWG26 multi-strand pure copper metal wire, a miniature push-button switch, and end-face contacts.

[0058] This device uses three LR41 / AG3 button batteries connected in series for power. Each battery has a diameter of 7.9mm, a height of 3.6mm, and a voltage of 1.5V. After being connected in series, the batteries are regulated to 3.4V by an integrated 180Ω micro current-limiting circuit on the board, matching the operating voltage of the LED beads. The built-in integrated battery compartment is also made of ABS material, with an internal cavity size of 12mm×8.5mm×4mm. The side wall of the compartment is equipped with nickel-plated phosphor bronze elastic springs as electrode contact ends, with a contact resistance of ≤20mΩ. The top of the side wall has a 1.2mm wide elastic buckle to firmly fix the series-connected batteries and prevent them from loosening.

[0059] The test pen features a built-in miniature push-button switch, measuring 6mm × 6mm × 4.5mm. Its rated parameters are DC30V / 0.1A, contact resistance ≤30mΩ, and mechanical lifespan of at least 500,000 cycles. The circuit connection logic is as follows: the positive terminal of the battery is connected to one end of the miniature push-button switch via an AWG26 insulated copper wire; the other end of the push-button switch is electrically connected to the raised contact on the test pen head. The negative terminal of the battery is directly connected to the recessed contact on the test pen head via a metal wire. The specifications of the raised and recessed contacts on the test pen head are completely consistent with those of quick-connect plug contacts. The contact material is gold-plated brass, ensuring stable conductivity and resistance to oxidation.

[0060] In use, the end face of the quick-connect power supply tester should be tightly aligned with the end face of the quick-connect plug, ensuring that the protruding contact of the tester aligns with the concave contact of the plug, and vice versa. Pressing the switch will output a 3.4V operating voltage, powering the internal miniature circuit board and LED beads of the plug, and illuminating a single wire individually. This power supply tester is compact and easy to operate, allowing for segmented continuity testing and wiring fault diagnosis, further enhancing the convenience and safety of practical training and debugging.

[0061] like Figure 10-11 As shown, the modular controlled object model of building equipment: Modular building equipment is the controlled object. The controlled building equipment is typically large in size. By modularizing and miniaturizing the building equipment, trainees can quickly understand the principles of the equipment even with limited space and resources.

[0062] To connect to independently packaged electrical components, modular building equipment controlled objects encapsulate their power and circuit control interfaces. The power and circuit control interfaces of the controlled object are then connected to quick-connect connectors on the panel.

[0063] Taking modular air conditioning unit equipment as an example: The modular air conditioning unit measures 1200×800×300mm and includes a transparent acrylic shell, air inlet, and air outlet. Inside, it contains a variable frequency fan, heat exchanger, electric heating element, and flow control valve.

[0064] Its electrical components include frequency converters, solid-state relays, and temperature sensors.

[0065] This modular air conditioning unit is divided into front and rear sections, constructed with an aluminum alloy frame. The upper section consists of a transparent acrylic panel fixed to the frame with countersunk screws, forming the main housing. Two air inlets and outlets are pre-installed on the acrylic panel for air circulation. The lower section houses various equipment directly from the frame. To achieve temperature and humidity control, the upper space is divided into three independent functional sections: heating, humidification, and outlet detection. A tube-plate heat exchanger is installed at the air inlet, bolted to the frame, for heat exchange between air and refrigerant. A fan is fixed in the middle of the housing using a shock-absorbing bracket. The fan's inlet connects to the heat exchanger's outlet, and its outlet connects to the functional section containing the outlet, discharging the treated air. An electric humidification unit is mounted on the side of the fan section using an L-shaped bracket to regulate air humidity. In front of the air conditioning unit, the power and control lines of each device are led to the control panel. The control panel is fixed to the inside of the control cabinet door with countersunk screws. The frequency converter is installed on the inner wall of the control cabinet and can be adjusted and operated through the cabinet door opening.

[0066] This modular air conditioning unit adopts a layered design of high-voltage power circuit and low-voltage control circuit. In the high-voltage circuit, the variable frequency fan, electric heating, and humidification equipment are connected to the power supply line through circuit breakers, contactors, and solid-state relays, respectively. The start / stop and power regulation are controlled by the PLC output. At the same time, various protective switches are connected in series to the emergency stop circuit to ensure system safety. In the low-voltage circuit, the analog signals from temperature, humidity, and differential pressure sensors are connected to the analog input module and uploaded to the PLC. The PLC controls each actuator through the digital output. A reserved signal interface is provided for connecting an external control terminal. The digital signals of the start / stop button and emergency stop button are connected to the PLC input module. The operation and fault indicator lights are driven by the PLC output.

[0067] Power and control cables for each device are laid separately along PVC cable trays inside the cabinet, maintaining a distance between high-voltage and low-voltage lines to avoid electromagnetic interference. They ultimately converge at the partitioned terminal blocks on the lower profile. The terminal blocks connect to the control panel via multi-core control cables. The cables exit through wire holes on the side wall and are fitted with protective sleeves, with wire numbers marked at both ends. The control panel is fixed inside the control cabinet door. The front integrates operation buttons, status indicator lights, and an Ethernet signal interface. The back connects to the cables via terminal blocks. All outgoing wires are labeled with wire numbers and functions, and function nameplates are riveted to the panel.

[0068] The number of devices and processing scale described herein are for simplification purposes. Applications, modifications, and variations of this invention will be readily apparent to those skilled in the art. Although embodiments of the invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this invention, and further modifications can be readily implemented by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, this invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A modular building equipment automation training device based on independently packaged electrical components, characterized in that, include: The control panel, the mounting plate fixed to the control panel, and a plurality of independently encapsulated electrical components fixed to the mounting plate; Among them, multiple independently packaged electrical components are electrically connected during use via surface-controlled light-emitting quick-connect wires; Multiple independently packaged electrical components use the same housing material. Magnetic permanent magnets are fixed at the four corners of the housing surface near the mounting plate. At least two quick-connection ports are provided on the surface of the housing opposite to the magnetic permanent magnets. The upper and lower surfaces of the housing are provided with heat dissipation holes, and multiple fan mounting holes are reserved at the heat dissipation holes on the upper surface.

2. The modular building equipment automation training device based on independently packaged electrical components as described in claim 1, characterized in that, The outer shell is made of a non-magnetic material, such as acrylic or plastic, and the surface of the outer shell near the mounting plate is non-transparent, while the surface opposite the mounting plate is transparent.

3. The modular building equipment automation training device based on independently packaged electrical components as described in claim 1, characterized in that, The multiple individually packaged electrical components include controllers, PLCs, human-machine interfaces, indicator lights, buttons, contactors, relays, intermediate relays, and sensors.

4. The modular building equipment automation training device based on independently packaged electrical components as described in claim 1, characterized in that, The surface-controlled light-emitting quick-connect wire includes a conductor, a diffuse optical fiber wound around the surface of the conductor, a transparent insulating layer wrapped around the diffuse optical fiber and the conductor, and quick-connect plugs respectively disposed at both ends of the conductor.

5. The modular building equipment automation training device based on independently packaged electrical components as described in claim 4, characterized in that, It contains several controllable colored light-emitting diodes (LEDs), which are connected to the diffused optical fiber ends in the conductor. When the LEDs emit light, the light can be transmitted through the diffused optical fiber, causing the entire conductor to emit light and indicating the direction of the conductor.

6. The modular building equipment automation training device based on independently packaged electrical components as described in claim 5, characterized in that, The light-emitting diode is connected to a micro circuit board, which is powered by metal contacts on the upper and lower ends of the quick plug. When the external power supply is connected to the two metal contacts on the upper and lower ends, the controllable light-emitting diode will emit light, thereby making the entire conductor emit light.

7. The modular building equipment automation training device based on independently packaged electrical components as described in claim 6, characterized in that, The quick-connect plug includes multiple metal contacts on both its upper and lower surfaces. One of the metal contacts on the upper surface is a convex contact, and the other is a concave contact, to prevent reverse polarity during power supply. One of the metal contacts on the lower surface is a convex contact, and the other is a concave contact. The concave contact on the upper surface is electrically connected to the convex contact on the lower surface, and the convex contact on the upper surface is electrically connected to the concave contact on the lower surface. When multiple quick-connect plugs are stacked, the upper and lower surfaces of two different plugs come together, causing the contacts to close. When the uppermost contact is powered, all wires connected to that point are illuminated.

8. The modular building equipment automation training device based on independently packaged electrical components according to claim 7, characterized in that, A quick-connect power pen powered by metal contacts includes a battery, metal wires, a push-button switch, and end-face contacts. There are two end-face contacts: one raised and one recessed. The size and spacing of the raised and recessed contacts match the raised and recessed metal contacts on the end face of the quick-connect plug. The positive terminal of the battery is electrically connected to one end of the push-button switch, the other end of the push-button switch is electrically connected to the raised contact, and the negative terminal of the battery is electrically connected to the recessed end-face contact. When the end face of the quick-connect power pen is aligned with the end face of the quick-connect plug, the longer contact on the pen connects to the recessed contact on the plug's end face, and the shorter contact on the pen connects to the longer contact on the plug's end face, thus powering the LEDs on the micro-circuit board.

9. A modular building equipment automation training device based on independently packaged electrical components according to claim 1, characterized in that, The independently packaged electrical components and the modular building equipment controlled objects are all connected by plug-and-play electrical wires with controllable surface light emission. The wiring status and conduction path can be visualized in real time through the light emission status of the wires.

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