Electrical control cabinet, system, temperature control method and equipment of numerical control machine tool

Abstract

The invention relates to the technical field of heat dissipation of numerical control machine tools, in particular to an electrical control cabinet, system, temperature control method and equipment of a numerical control machine tool, the control cabinet is divided into a strong current cavity and a weak current cavity which are respectively used for arranging a strong current element and a weak current element, and the temperature in the strong current cavity is adjusted through an air conditioner; the temperature in the weak current cavity is adjusted through the fan, mutual interference between strong and weak current elements is effectively avoided, the strong current cavity and the weak current cavity are cooled through different cooling modes, and the temperature control effect of the electrical control cabinet of the numerical control machine tool is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of numerically controlled machine tools, and in particular to an electrical control cabinet, a system, a temperature control method and a device for a numerically controlled machine tool. Background Art

[0002] Almost all switchgear and control equipment (such as control modules, drive modules, input and output modules) in CNC machine tools are installed in electrical cabinets. When designing electrical control cabinets, in addition to ensuring the installation spacing and position of components that must be safe, the use conditions of the electrical cabinets must also be considered to ensure that the operating conditions of the electrical control cabinets are in an environment with suitable temperature and humidity. In electrical control cabinets, electrical components dissipate a lot of heat when working. If the heat cannot be dissipated in time, the accumulated heat will affect the reliability and service life of the electrical components. For example, the drive module and input and output module of the FANUC system require an operating temperature of 0 to 55°C; the power module and motor module of the Siemens system require a working temperature of 0 to 40°C. The highest temperature in most non-constant temperature workshops in my country will reach about 40°C in summer. Especially in the southern region, the humidity is high all year round. In order to ensure the stable and reliable operation of the machine tool, the temperature inside the cabinet should be 2°C to 3°C different from the temperature outside the cabinet, and the relative humidity value should be lower than 75%. In view of the above, the control cabinet needs to be treated for heat dissipation and humidity. Usually, desiccant is placed in the control cabinet and a cooling device is installed to achieve moderate heat dissipation and humidity.

[0003] At present, the common heat dissipation methods of control cabinets are: fan forced cooling, air-cooled exchanger, water-cooled exchanger and air-conditioning cooling. Fan forced cooling achieves cooling by strengthening air convection. The advantage of this method is low cost, but when air convection occurs at the air inlet and the ventilation fan, dust, oil and other dirt in the outside air will enter the control cabinet with the air. After long-term operation, dust and other debris will be adsorbed on the electrical components, causing damage to the electrical components. Air-cooled exchangers, water-cooled exchangers and air-conditioning cooling have good sealing and will not cause damage to electrical components, but air-cooled exchangers can only ensure a good cooling effect when the ambient temperature is low; water-cooled exchangers are highly dependent on cooling water sources. If there is a problem with the cooling water source, the heat dissipation equipment will not work properly.

[0004] Patent document CN109392275A "An electrical control cabinet for CNC machine tools" proposes to use air conditioning to achieve cooling, and at the same time control the switch of the air conditioner through a PLC controller to reduce power consumption. However, the patent document is limited to considering the temperature inside the cabinet, and does not take into account the temperature difference and humidity inside and outside the cabinet. When the temperature of the electric control cabinet differs too much from the room temperature, the electric control cabinet will produce condensed water, which will not only waste power consumption, but also accelerate the service life of electronic components. In addition, the patent document does not consider the heat conditions of the strong and weak parts of the electric control cabinet. Usually, the driver module in the strong part generates a lot of heat and the temperature rises, while the weak part generates less heat and the temperature rise is low. In addition, the patent does not clearly distinguish between the power line and the signal line and place them in the wiring trough. Patent document CN205968453U "A heat dissipation structure applied to CNC machine tools" proposes to set a heat dissipation cabinet outside the electric control cabinet, and dissipate heat from the electric control cabinet through the heat dissipation cabinet, but the device occupies a large space. In addition, the patent does not specify the relative position of the heat dissipation cabinet and the electric control cabinet. If the distance is too close, it will lead to poor heat dissipation effect, and if the distance is too far, it will further increase the occupied space. Patent document CN106785972A "An electric control cabinet with air cooling device" proposes to install a high-power exhaust fan inside the cabinet. When working, the exhaust fan will discharge the heat emitted by the electrical components. In this way, the sealing of the electric control cabinet cannot be guaranteed, and dust in the use environment will enter the electric control cabinet, thereby accelerating the loss of electrical components. Therefore, in the prior art, the temperature control effect of the electrical control cabinet of the CNC machine tool is not ideal. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an electrical control cabinet, system, temperature control method and device for a CNC machine tool, so as to overcome the problem that the temperature control effect of the electrical control cabinet of the current CNC machine tool is poor.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present application provides an electrical control cabinet for a CNC machine tool, comprising: a cabinet body, a strong and weak current partition, an air conditioner, a fan, and a left door and a right door arranged on one side of the cabinet body, wherein when the left door and the right door are closed, the cabinet body, the left door and the right door form a closed inner cavity;

[0008] The strong and weak current partition is fixedly arranged in the cabinet, and is used to separate the inner cavity into a strong current cavity for arranging strong current components and a weak current cavity for arranging weak current components;

[0009] The air conditioner is used to adjust the temperature in the strong current chamber, and the fan is used to adjust the temperature in the weak current chamber.

[0010] Further, in some embodiments of the present application, the air conditioner is arranged on the left door, and the fan is arranged on the inner side of the right door;

[0011] Furthermore, the air conditioner and the fan are both electrically connected to a preset PLC controller.

[0012] Furthermore, in some embodiments of the present application, it further includes: a first in-cabinet temperature sensor disposed in the strong current cavity, a second in-cabinet temperature sensor disposed in the weak current cavity, a humidity sensor disposed at the strong and weak current partition, and an external cabinet temperature sensor disposed outside the cabinet;

[0013] The first in-cabinet temperature sensor, the second in-cabinet temperature sensor, the humidity sensor and the out-cabinet temperature sensor are all electrically connected to the PLC controller.

[0014] Furthermore, in some embodiments of the present application, a heat insulation board is also included;

[0015] The fixing structures on the left and right sides of the heat insulation board are fixed to the inner side of the right door, and the upper and lower ends of the heat insulation board are open;

[0016] The fan is arranged on the heat insulation board.

[0017] Furthermore, in some embodiments of the present application, galvanized partitions are provided in both the high-voltage and low-voltage chambers, and the galvanized partitions are used to install the high-voltage components or the low-voltage components.

[0018] Furthermore, in some embodiments of the present application, it also includes: a wiring partition; the wiring partition is provided with a wiring cavity and a heavy-load connector interface.

[0019] Furthermore, in some embodiments of the present application, a base fixed to the bottom end of the cabinet is also included;

[0020] The base is provided with a wire entry hole, a wire routing groove and a bearing plate, and the bearing plate is used to isolate the wires in the wire routing groove from the ground.

[0021] In a second aspect, the present application provides a temperature control method for an electrical control cabinet of a CNC machine tool, which is applied to the electrical control cabinet of the above-mentioned CNC machine tool, comprising:

[0022] Acquire the real-time temperature in the strong electric cavity, and control the operation of the air conditioner based on the real-time temperature in the strong electric cavity to control the temperature in the strong electric cavity;

[0023] The real-time temperature in the weak-current cavity is obtained, and based on the real-time temperature in the weak-current cavity, the fan is controlled to operate so as to control the temperature in the weak-current cavity.

[0024] Furthermore, in some embodiments of the present application,

[0025] The controlling of the air conditioner to operate based on the real-time temperature in the strong electric cavity to control the temperature in the strong electric cavity includes: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the strong electric cavity and the temperature outside the cabinet is greater than a second preset value, controlling the air conditioner to cool to reduce the temperature in the strong electric cavity;

[0026] The fan is controlled to operate based on the real-time temperature in the weak-current cavity to control the temperature in the weak-current cavity, including: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the weak-current cavity and the temperature outside the cabinet is greater than a second preset value, the fan is controlled to operate to reduce the temperature in the weak-current cavity.

[0027] Furthermore, in some embodiments of the present application, it also includes: when the humidity outside the cabinet is higher than a third preset value, controlling the air conditioner to dehumidify.

[0028] Further, in some embodiments of the present application, the method further includes: when the temperature outside the cabinet is lower than a first preset value but higher than a maximum value of a preset temperature range, controlling the air conditioner to cool so that the temperature in the strong current cavity is within the preset temperature range, and controlling the fan to operate so that the temperature in the weak current cavity is within the preset temperature range;

[0029] When the real-time temperature in the strong current chamber or the weak current chamber is lower than the minimum value of the preset temperature range, the air conditioner is controlled to heat.

[0030] In a third aspect, the present application provides a temperature control device for an electrical control cabinet of a CNC machine tool, comprising a processor and a memory, wherein the processor is connected to the memory:

[0031] Wherein, the processor is used to call and execute the program stored in the memory;

[0032] The memory is used to store the program, and the program is at least used to execute the temperature control method of the electrical control cabinet of the CNC machine tool as described above.

[0033] In a fourth aspect, the present application provides an electrical control cabinet system for a CNC machine tool, characterized in that it includes the electrical control cabinet for the CNC machine tool as described above.

[0034] The present invention relates to the technical field of heat dissipation of numerically controlled machine tools, and in particular to an electrical control cabinet, system, temperature control method and equipment of a numerically controlled machine tool. The control cabinet is divided into a strong current cavity and a weak current cavity, which are respectively used to set strong current components and weak current components. The temperature in the strong current cavity is adjusted by an air conditioner, and the temperature in the weak current cavity is adjusted by a fan. This not only effectively avoids mutual interference between the strong and weak current components, but also dissipates heat for the strong current cavity and the weak current cavity through different heat dissipation methods, thereby greatly improving the temperature control effect of the electrical control cabinet of the numerically controlled machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is an axonometric view of an electrical control cabinet of a CNC machine tool provided in an embodiment of the present invention.

[0037] Figure 2 It is a front view of an electrical control cabinet of a CNC machine tool provided in an embodiment of the present invention.

[0038] Figure 3 It is an axonometric view from another perspective of the electrical control cabinet of the CNC machine tool provided by an embodiment of the present invention.

[0039] Figure 4 It is a structural schematic diagram of a base in an electrical control cabinet of a CNC machine tool provided by an embodiment of the present invention.

[0040] Figure 5 It is a structural schematic diagram of the right door in the electrical control cabinet of the CNC machine tool provided in an embodiment of the present invention.

[0041] Figure 6 It is a structural schematic diagram of a temperature control device of an electrical control cabinet of a CNC machine tool provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0043] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0044] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0045] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0046] Figure 1 This is an axonometric diagram of an electrical control cabinet for a CNC machine tool provided by an embodiment of the present invention. Figure 1 The electrical control cabinet of the CNC machine tool provided in this embodiment may specifically include: a cabinet body 1, a strong and weak current partition 3, an air conditioner 20, a fan 12, and a left door 4 and a right door 14 arranged on one side of the cabinet body 1. When the left door 4 and the right door 14 are closed, the cabinet body 1, the left door 4 and the right door 14 form a closed inner cavity; the strong and weak current partition 3 is fixedly arranged in the cabinet body 1, and is used to separate the inner cavity into a strong current cavity 7 for arranging strong current components and a weak current cavity 8 for arranging weak current components; the air conditioner 20 is used to adjust the temperature in the strong current cavity 7, and the fan is used to adjust the temperature in the weak current cavity 8.

[0047] In actual application, the cabinet 1 is a hollow structure in the long direction, and a cabinet door is arranged on the front of the cabinet 1. The cabinet door is a double door, divided into a left door 4 and a right door 14. The strong and weak current partition 3 is fixed in the middle part of the cabinet 1, which is used to separate the cabinet 1 into two areas, namely the strong current cavity 7 and the weak current cavity 8. It should be noted that in the present application, when the cabinet door is closed, the strong current cavity 7 and the weak current cavity 8 can be two independent closed areas for respectively setting different electrical components.

[0048] On this basis, the electrical control cabinet of the CNC machine tool provided in the present application also includes an air conditioner 20 and a fan 12. The air conditioner 20 is used to control the temperature in the high-voltage cavity 7, and the fan 12 is used to control the temperature in the low-voltage cavity 8. By separating the high-voltage and low-voltage parts, mutual interference between electronic components can be effectively avoided. Moreover, since the heat generation of the two is different, heat dissipation is performed in different ways, which can improve the overall heat dissipation effect and energy consumption control of the electrical control cabinet. The overall structure of the electrical control cabinet is simple and practical.

[0049] Figure 2-Figure 4 1 is a structural schematic diagram of an electrical control cabinet of a CNC machine tool provided by an embodiment of the present invention from another perspective, which is a main view, an axonometric view from another perspective, and a bottom surface, such as Figure 1-Figure 4 As shown, in some embodiments of the present application, further, the air conditioner 20 is arranged on the left door 4, and the fan 12 is arranged on the inner side of the right door 14; and the air conditioner 20 and the fan 12 are both electrically connected to a preset PLC controller.

[0050] Specifically, first, the air conditioner part, an air conditioner mounting hole 18 is provided at the front end of the left door 4, and the air conditioner 20 can be connected and fixed to the mounting hole of the left door 4 by screws. Then, the fan part, a heat insulation board 13 is provided on the inner side of the right door 14, and the heat insulation board 13 is fixedly connected to the right door 14 by screws, and the fan is fixed on the partition board 13. It should be noted that for the weak current cavity 8, when the right door 14 is closed and the fan 12 is running, the air or heat in the weak current cavity 8 is only circulated in the weak current cavity 8, and will not go out of the weak current cavity.

[0051] Furthermore, if Figure 5 As shown, in some embodiments of the present application, the left and right sides of the heat insulation board 13 are fixed to the inner side of the right door, and the upper and lower ends of the heat insulation board 13 are open, that is, the upper and lower ends are open; the fan 12 is set on the heat insulation board 13. In this way, the heat insulation board 13 and part of the right door 14 form a double-layer air circulation guide structure. When the fan is running, air can be blown at its top (such as Figure 3 The hot air inlet 30 shown in FIG. Figure 3 In this way, in the weak current chamber 8, heat circulates between the double-layer plates, which is conducive to maintaining thermal balance and good sealing. The temperature in the weak current chamber 8 can be greatly reduced when only a fan is used.

[0052] In view of the low heat dissipation characteristic of the weak-current components in the present application, the fan is installed near the right door 14 of the double-layer sheet metal. Heat flows in from the upper side and out from the lower side, thereby ensuring heat exchange in the weak-current cavity 8 and the sealing of the electric control cabinet, thereby increasing the service life of the electrical components.

[0053] Furthermore, if Figure 1 As shown, in some embodiments of the present application, the electrical control cabinet also includes multiple temperature sensors and humidity sensors.

[0054] Specifically, the temperature sensor includes a first in-cabinet temperature sensor arranged in the strong current cavity 7, a second in-cabinet temperature sensor 6 arranged in the weak current cavity 8, a humidity sensor 15 arranged at the strong and weak current partition 3 (i.e., in the middle of the cabinet), and an external cabinet temperature sensor 19 arranged on the outside of the cabinet 1. Among them, each of the above sensors is electrically connected to a preset PLC controller (of course, in other embodiments, it can also be other control modules or devices). Among them, the control signal lines and electrical signal lines of these sensors are independent of the internal cables of the machine tool, and can be connected to the PLC controller through internal wiring grooves (different from the various wiring grooves and wiring holes mentioned in subsequent 26-29).

[0055] It should be noted that in the present application, the air conditioner 20 and the fan 12 mentioned above are also connected to the PLC controller. In this way, the PLC controller can monitor the real-time temperature in each chamber and the real-time temperature of the environment, and control the operation of the air conditioner 20 and the fan 12 according to the preset program distribution, so as to achieve temperature control of each chamber separately. In this way, the temperature in each chamber is independently controlled by the PLC controller, and a humidity sensor is added to avoid short circuits caused by excessive humidity in the electrical control cabinet (dehumidification is controlled by the PLC controller), which is highly safe, reduces the power loss of the electrical control cabinet, saves energy, reduces costs, and ensures the service life of electronic components.

[0056] Furthermore, in some embodiments of the present application, galvanized plates 9 and galvanized partitions 10 are provided in both the strong current cavity 7 and the weak current cavity 8 (in order to clearly display the components and avoid overly complicated labels, they are only marked in the weak current cavity 8), and the galvanized partitions 10 are used to install strong current components or the weak current components. The galvanized plates 9 and galvanized partitions 10 are used to isolate each part and have corrosion resistance, further ensuring the safety of the use of electrical components. It should be noted that the electrical components are installed in the electric control cabinet through the galvanized partitions, and the electronic components of the same number meet the interchangeability requirements.

[0057] Furthermore, in some embodiments of the present application, a wiring partition 5 is also included. Among them, a wiring cavity 17 and a heavy-duty connector interface 2 are provided on the wiring partition 5. The wiring cavity is used to isolate and place the wires connected to each electrical component, and a wiring hole 16 can also be provided at the strong and weak current partition 3 to facilitate safe connection of the line. In this way, the electrical control cabinet is divided into a wiring cavity 17, a strong current cavity 7 and a weak current cavity 8, and the positions of different modules are reasonably arranged, which can avoid signal interference and facilitate installation and maintenance; the electrical control cabinet is divided into a wiring cavity, a strong current cavity and a weak current cavity. Among them, it should be noted that the heavy-duty connector is a connector designed for high current, high vibration and harsh environment, and is commonly used in industrial equipment, machine tools, automation systems and other fields. This connector has high mechanical strength and electrical performance, and can ensure stable transmission of power and signals under harsh working conditions. The heavy-duty connector interface 2 mentioned above in this application is the installation port for installing the heavy-duty connector.

[0058] Furthermore, in some embodiments of the present application, a base 21 is also included which is fixed to the bottom end of the cabinet 1, and a wire entry hole, a wire routing trough and a bearing plate 23 are provided on the base 21, wherein the bearing plate is used to isolate the lines in the wire routing trough from the ground, that is, to lift the cables to prevent them from contacting oil stains on the ground.

[0059] Specifically, the cabinet 1 can be fixed to the base 21 by welding, and Figure 4 The wire entry holes (also known as wiring openings) and wiring troughs shown specifically include power line wiring troughs 24, signal line wiring troughs 25, power line inlet 26 from the machine tool, signal line inlet 27 from the machine tool, power line inlet 28 of the electric control cabinet, and signal line inlet 29 of the electric control cabinet. It can be understood that the power line of the machine tool is the line through which various power sources such as electrical, hydraulic, and pneumatic power sources in machine tool processing are connected to various components of the machine tool through routing lines, and it plays an important role in connecting the control cabinet and various electrical components. The machine tool signal line refers to the line used to transmit signals such as the machine tool status and workpiece processing status in the machine tool control system. They are mainly used to transmit signals generated inside the machine tool control system to ensure that the control system can respond to the operating status and processing process of the machine tool in a timely manner.

[0060] Thus, by providing power line and signal line grooves at the bottom of the cabinet 1 and providing a bearing plate 23 on the grooves, it is possible to prevent the wires from being soaked when the machine tool leaks oil, which is beneficial to the maintenance and repair of the wires.

[0061] In addition, if Figure 2 and Figure 3 As mentioned above, considering the safety of workshop personnel and operators, the present application also provides a door lock 22 on the right door 14, and the door lock 22 requires a key to open.

[0062] The existing traditional electrical cabinets only detect the temperature inside the cabinet. The electrical control cabinet for CNC machine tools provided in this application can control the temperature inside the electrical control cabinet based on the temperature difference between the inside and outside of the electrical control cabinet, thereby reducing power consumption. The specific control scheme includes: obtaining the real-time temperature inside the strong current cavity, and based on the real-time temperature inside the strong current cavity, controlling the air conditioner to operate to control the temperature inside the strong current cavity; obtaining the real-time temperature inside the weak current cavity, and based on the real-time temperature inside the weak current cavity, controlling the fan to operate to control the temperature inside the weak current cavity. Including: when the temperature outside the cabinet is higher than the first preset value, and the difference between the real-time temperature inside the strong current cavity and the temperature outside the cabinet is greater than the second preset value, controlling the air conditioner to cool to reduce the temperature inside the strong current cavity; when the temperature outside the cabinet is higher than the first preset value, and the difference between the real-time temperature inside the weak current cavity and the temperature outside the cabinet is greater than the second preset value, controlling the fan to operate to reduce the temperature inside the weak current cavity. When the temperature outside the cabinet is lower than the first preset value but higher than the maximum value of the preset temperature range, the air conditioner is controlled to cool so that the temperature in the strong current cavity is within the preset temperature range, and the fan is controlled to run so that the temperature in the weak current cavity is within the preset temperature range; when the real-time temperature in the strong current cavity or the weak current cavity is lower than the minimum value of the preset temperature range, the air conditioner is controlled to heat. When the humidity outside the cabinet is higher than the third preset value, the air conditioner is controlled to dehumidify.

[0063] Specifically, the corresponding temperature and humidity data are obtained through the various temperature and humidity sensors mentioned above. It is assumed that the temperature outside the cabinet (i.e., the indoor temperature or the ambient temperature) (also in real time) is t1, the real-time temperatures in the high-voltage cavity and the low-voltage cavity of the electrical control cabinet are t2 and t3 respectively, and the threshold for starting temperature control based on the temperature difference between the inside and outside is set to the first preset value of 35°C, the maximum temperature difference between the inside and outside of the cabinet is the second preset value of n, and the maximum humidity value of the electrical control cabinet is the third preset value of m.

[0064] In practical applications, when the temperature outside the cabinet t1 is greater than 35°C, the difference between each chamber and the temperature outside the cabinet is calculated, Δ1=t2-t1 and Δ2=t3-t1; when Δ1 is greater than n, the PLC controller is controlled to start the air conditioner, and when Δ1 is less than or equal to n, the air conditioner is turned off; when Δ2 is greater than n, the PLC controller is controlled to start the fan, and when Δ2 is less than or equal to n, the fan is turned off.

[0065] And when the humidity value in the electrical control cabinet is greater than m, the PLC controls the air conditioner to turn on the dehumidification function.

[0066] When the temperature outside the cabinet is less than 35℃, the temperature of the electric control cabinet is controlled by thermostatic adjustment, that is, the temperature inside the electric control cabinet is maintained at about 32℃~33℃. For example, when the temperature outside the cabinet is less than 35 degrees, but greater than 32-33 degrees, the air conditioner and fan of the electric cabinet are started to reduce the temperature inside the electric control cabinet (including the strong current cavity and the weak current cavity) to 32-33 degrees; and when the temperature inside the electric control cabinet is below 32 degrees, the air conditioner of the electric cabinet is turned on to increase the temperature inside the cavity and keep the temperature inside the cavity at 32-33 degrees.

[0067] In addition, it should be noted that when the temperature and humidity in the electrical control cabinet are not within a reasonable range, considering that electronic components will accelerate wear and cause line failures if they are in an environment with too high a temperature for a long time, the PLC should be controlled to turn on the air conditioner or fan cooling function first.

[0068] Based on the same inventive concept, the present application also provides a temperature control method for an electrical control cabinet of a CNC machine tool, which is applied to the electrical control cabinet of the CNC machine tool as mentioned above, including: obtaining the real-time temperature in the high-voltage cavity, and controlling the operation of the air conditioner based on the real-time temperature in the high-voltage cavity to control the temperature in the high-voltage cavity; obtaining the real-time temperature in the low-voltage cavity, and controlling the operation of the fan based on the real-time temperature in the low-voltage cavity to control the temperature in the low-voltage cavity.

[0069] In some embodiments, the above-mentioned control of the air conditioner operation based on the real-time temperature in the high-voltage cavity to control the temperature in the high-voltage cavity specifically includes: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the high-voltage cavity and the temperature outside the cabinet is greater than a second preset value, controlling the air conditioner to cool to lower the temperature in the high-voltage cavity; based on the real-time temperature in the low-voltage cavity, controlling the fan operation to control the temperature in the low-voltage cavity, specifically includes: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the low-voltage cavity and the temperature outside the cabinet is greater than a second preset value, controlling the fan operation to lower the temperature in the low-voltage cavity.

[0070] The control method further includes: when the humidity outside the cabinet is higher than the third preset value, controlling the air conditioner to dehumidify. When the temperature outside the cabinet is lower than the first preset value but higher than the maximum value of the preset temperature range, controlling the air conditioner to cool so that the temperature in the strong current cavity is within the preset temperature range, and controlling the fan to run so that the temperature in the weak current cavity is within the preset temperature range; when the real-time temperature in the strong current cavity or the weak current cavity is lower than the minimum value of the preset temperature range, controlling the air conditioner to heat.

[0071] Regarding the method in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the electrical control cabinet of the CNC machine tool, and will not be elaborated here.

[0072] Based on the same inventive concept, the present application also provides a temperature control device for an electrical control cabinet of a CNC machine tool, such as Figure 6As shown, the device includes a processor and a memory, and the processor is connected to the memory: wherein the processor is used to call and execute the program stored in the memory; the memory is used to store the program, and the program is at least used to execute the above-mentioned temperature control method of the electrical control cabinet of the CNC machine tool. Regarding the equipment in the above-mentioned embodiments, the specific implementation scheme of the temperature control device of the electrical control cabinet of the CNC machine tool provided in the embodiments of the present application can refer to the implementation scheme of the electrical control cabinet of the CNC machine tool and the temperature control method of the electrical control cabinet of the CNC machine tool in any of the above embodiments, and will not be repeated here.

[0073] Based on the same inventive concept, the present application also provides an electrical control cabinet system for a CNC machine tool, including the electrical control cabinet for the CNC machine tool as described above. Regarding the system in the above embodiment, the specific manner in which the various parts related to the electrical control cabinet of the CNC machine tool perform operations has been described in detail in the embodiment of the electrical control cabinet of the CNC machine tool, and will not be elaborated on here.

[0074] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0075] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0076] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0077] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An electrical control cabinet for a CNC machine tool, characterized in that: include: A cabinet, a strong and weak current partition, an air conditioner, a fan, and a left door and a right door that are arranged on one side of the cabinet and open to each other. When the left door and the right door are closed, the cabinet, the left door and the right door form a closed inner cavity; The strong and weak current partition is fixedly arranged in the cabinet, and is used to separate the inner cavity into a strong current cavity for arranging strong current components and a weak current cavity for arranging weak current components; The air conditioner is used to adjust the temperature in the strong current cavity, and the fan is used to adjust the temperature in the weak current cavity.

2. The electrical control cabinet of a CNC machine tool according to claim 1, characterized in that: The air conditioner is arranged on the left door, and the fan is arranged on the inner side of the right door; Furthermore, the air conditioner and the fan are both electrically connected to a preset PLC controller.

3. The electrical control cabinet of a CNC machine tool according to claim 2, characterized in that: Also includes: A first in-cabinet temperature sensor is arranged in the strong current cavity, a second in-cabinet temperature sensor is arranged in the weak current cavity, a humidity sensor is arranged at the strong and weak current partition, and an external cabinet temperature sensor is arranged outside the cabinet; The first in-cabinet temperature sensor, the second in-cabinet temperature sensor, the humidity sensor and the out-cabinet temperature sensor are all electrically connected to the PLC controller.

4. The electrical control cabinet for a CNC machine tool according to claim 2, characterized in that: Also included are thermal insulation panels; The fixing structures on the left and right sides of the heat insulation board are fixed to the inner side of the right door, and the upper and lower ends of the heat insulation board are open; The fan is arranged on the heat insulation board.

5. The electrical control cabinet for a CNC machine tool according to claim 1, characterized in that: The strong current cavity and the weak current cavity are both provided with galvanized partitions, and the galvanized partitions are used for installing the strong current components or the weak current components.

6. The electrical control cabinet for a CNC machine tool according to claim 1, characterized in that: Also includes: A wiring partition; the wiring partition is provided with a wiring cavity and a heavy-duty connector interface.

7. The electrical control cabinet for a CNC machine tool according to claim 1, characterized in that: Also includes a base fixed to the bottom end of the cabinet; The base is provided with a wire entry hole, a wire routing groove and a bearing plate, and the bearing plate is used to isolate the wires in the wire routing groove from the ground.

8. A temperature control method for an electrical control cabinet of a CNC machine tool, applied to the electrical control cabinet of a CNC machine tool as claimed in any one of claims 1 to 7, characterized in that: include: Acquire the real-time temperature in the strong electric cavity, and control the operation of the air conditioner based on the real-time temperature in the strong electric cavity to control the temperature in the strong electric cavity; The real-time temperature in the weak-current cavity is obtained, and based on the real-time temperature in the weak-current cavity, the fan is controlled to operate so as to control the temperature in the weak-current cavity.

9. The temperature control method of the electrical control cabinet of a CNC machine tool according to claim 8, characterized in that: The controlling of the air conditioner to operate based on the real-time temperature in the strong electric cavity to control the temperature in the strong electric cavity includes: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the strong electric cavity and the temperature outside the cabinet is greater than a second preset value, controlling the air conditioner to cool to reduce the temperature in the strong electric cavity; The fan is controlled to operate based on the real-time temperature in the weak-current cavity to control the temperature in the weak-current cavity, including: when the temperature outside the cabinet is higher than a first preset value, and the difference between the real-time temperature in the weak-current cavity and the temperature outside the cabinet is greater than a second preset value, the fan is controlled to operate to reduce the temperature in the weak-current cavity.

10. The temperature control method of the electrical control cabinet of a CNC machine tool according to claim 8, characterized in that: Also includes: When the humidity outside the cabinet is higher than a third preset value, the air conditioner is controlled to perform dehumidification.

11. The temperature control method of the electrical control cabinet of a CNC machine tool according to claim 9, characterized in that: Also includes: When the temperature outside the cabinet is lower than the first preset value but higher than the maximum value of the preset temperature range, the air conditioner is controlled to cool so that the temperature in the strong current cavity is within the preset temperature range, and the fan is controlled to operate so that the temperature in the weak current cavity is within the preset temperature range; When the real-time temperature in the strong current chamber or the weak current chamber is lower than the minimum value of the preset temperature range, the air conditioner is controlled to heat.

12. A temperature control device for an electrical control cabinet of a numerically controlled machine tool, characterized in that: The invention comprises a processor and a memory, wherein the processor is connected to the memory: Wherein, the processor is used to call and execute the program stored in the memory; The memory is used to store the program, and the program is at least used to execute the temperature control method of the electrical control cabinet of a CNC machine tool as described in any one of claims 8-11.

13. An electrical control cabinet system for a CNC machine tool, characterized in that: An electrical control cabinet for a CNC machine tool comprising any one of claims 1 to 7.

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