Intelligent online monitoring device and system for temperature and humidity of motor junction box

Abstract

The utility model discloses a motor junction box humiture on-line monitoring device comprising a housing, a power supply module, a control module, an internal terminal module, a sensor module and a plurality of wiring terminals are arranged in the housing, the power supply module is connected with the control module, and the internal terminal module is connected with the sensor module. The control module is respectively connected with the internal terminal module, the sensor module and the plurality of wiring terminals, one end of the sensor module is connected with a first end of the internal terminal module, the other end of the sensor module is connected with one of the plurality of wiring terminals, a second end of the internal terminal module is connected with the power supply module, and the power supply module is connected with the power supply module. The third end of the internal terminal module is connected with one of the plurality of wiring terminals; and the external relay module is connected with the control module, and the external relay module is used for receiving the monitoring information of the sensor module. According to the technical scheme of the embodiment, the sealing performance of the motor junction box can be ensured, and the cruising ability is improved.

Description

Technical Field

[0001] This utility model relates to the field of junction box monitoring technology, and in particular to an intelligent online monitoring device and system for temperature and humidity of motor junction boxes. Background Technology

[0002] With the increasing level of industrial automation, the operational safety of motors, as key power equipment, is receiving increasing attention. Motor junction boxes, as core components of electrical connections, are constantly exposed to high current, high vibration, and complex electromagnetic environments, making them prone to abnormal temperature increases due to poor contact, insulation aging, and other issues, potentially leading to fires or equipment damage. However, existing wireless temperature measurement devices typically require the installation of antennas or sensors outside the junction box, necessitating openings or alterations to the original structure. This may reduce sealing and introduce safety hazards. Furthermore, most wireless transmission modules rely on external power supplies or have short-lived built-in batteries, making it difficult to meet long-term maintenance-free requirements. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an intelligent online monitoring device and system for the temperature and humidity of a motor junction box, which can ensure the sealing of the motor junction box and improve its battery life.

[0004] On the one hand, the intelligent online monitoring of temperature and humidity in the motor junction box according to the embodiments of this utility model includes:

[0005] The housing includes a power supply module, a control module, an internal terminal module, a sensor module, and multiple wiring terminals. The power supply module is connected to the control module. The control module is connected to the internal terminal module, the sensor module, and the multiple wiring terminals. One end of the sensor module is connected to the first end of the internal terminal module, and the other end of the sensor module is connected to one of the multiple wiring terminals. The second end of the internal terminal module is connected to the power supply module, and the third end of the internal terminal module is connected to one of the multiple wiring terminals. The sensor module is used to monitor the temperature and humidity of the multiple wiring terminals in real time, and the internal terminal module is used to monitor the internal temperature and humidity of the housing.

[0006] An external relay module is connected to the control module and is used to receive monitoring information from the sensor module.

[0007] According to some embodiments of this utility model, the power supply module includes a first chip, a second chip, a first magnetic sheet, a second magnetic sheet, a first diode, a second diode, a third diode, a fourth diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, and a fourth resistor. One end of the first magnetic sheet, one end of the second magnetic sheet, and one end of the first capacitor are all connected to one end of the second capacitor. The cathodes of the second capacitor and the second diode, one end of the third capacitor, one end of the fourth capacitor, the anode of the third diode, and one end of the first resistor are all connected to the first chip. The connections are as follows: the other end of the first magnetic sheet, the other end of the second magnetic sheet, and the cathode of the first diode are all connected to the anode of the second diode; the anode of the first diode is grounded; the other end of the first resistor is connected to one end of the second resistor; the other end of the third capacitor, the other end of the fourth capacitor, the cathode of the third diode, and the other end of the second resistor are all grounded; one end of the third resistor and one end of the fourth resistor are both connected to the first chip; the other end of the fourth resistor is connected to the second chip; and one end of the fifth capacitor, one end of the sixth capacitor, and the cathode of the fourth diode are all connected to the first chip.

[0008] According to some embodiments of this utility model, the control module includes a third chip, a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth inductor, a sixth inductor, a seventh inductor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, and a sixteenth capacitor. One end of the first inductor is connected to the power supply module. The other end of the first inductor and one end of the seventh capacitor are both connected to one end of the second inductor. The other end of the seventh capacitor is grounded. The other end of the second inductor and one end of the eighth capacitor are respectively connected to one end of the ninth capacitor and one end of the third inductor. The other end of the ninth capacitor and one end of the fifth inductor are both connected to the fourth inductor. One end of the fourth inductor is connected to the ground. The other end of the third inductor and the other end of the fifth inductor are both connected to one end of the tenth capacitor, and the other end of the tenth capacitor is grounded. The other end of the eighth capacitor and the other end of the eleventh capacitor are both connected to one end of the sixth inductor, and the other end of the eleventh capacitor is grounded. The other end of the sixth inductor is connected to the twelfth capacitor. The other end of the twelfth capacitor and the other end of the seventh inductor are both connected to the third chip. One end of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors are all connected to the other end of the seventh inductor, and the other ends of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors are all grounded.

[0009] According to some embodiments of this utility model, the sensor module is provided with multiple temperature and humidity sensors.

[0010] According to some embodiments of the present invention, the temperature and humidity sensor includes a fourth chip, a seventeenth capacitor, an eleventh resistor, and a twelfth resistor. The seventeenth capacitor is connected to a first terminal of the fourth chip, one terminal of the eleventh resistor is connected to a second terminal of the fourth chip, one terminal of the twelfth resistor is connected to a third terminal of the fourth chip, and the other terminals of the eleventh and twelfth resistors are both grounded.

[0011] According to some embodiments of the present invention, the housing is further provided with a display module.

[0012] According to some embodiments of this utility model, the intelligent online temperature and humidity monitoring device for the motor junction box is also equipped with an audible and visual alarm unit.

[0013] Secondly, this utility model embodiment provides an intelligent online monitoring system for temperature and humidity of a motor junction box, characterized in that it includes:

[0014] The intelligent online monitoring device for temperature and humidity of motor junction box as described in the first aspect embodiment above.

[0015] The online temperature and humidity monitoring device for motor junction boxes according to an embodiment of the present invention has at least the following features:

[0016] Beneficial effects:

[0017] The housing contains a power supply module, a control module, an internal terminal module, a sensor module, and multiple wiring terminals. The power supply module is connected to the control module, which in turn is connected to the internal terminal module, the sensor module, and the wiring terminals. One end of the sensor module is connected to the first end of the internal terminal module, and the other end is connected to one of the wiring terminals. The second end of the internal terminal module is connected to the power supply module, and the third end is connected to one of the wiring terminals. The sensor module monitors the temperature and humidity of the wiring terminals in real time, while the internal terminal module monitors the internal temperature and humidity of the housing. An external relay module is connected to the control module and receives the monitoring information from the sensor module. According to the technical solution of this embodiment, the sealing of the motor junction box can be guaranteed, and the battery life can be improved.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the principle of the intelligent online temperature and humidity monitoring device for the motor junction box according to an embodiment of the present invention;

[0021] Figure 2 This is a circuit diagram of the power supply module according to an embodiment of the present utility model;

[0022] Figure 3 This is a circuit diagram of the control module according to an embodiment of the present invention;

[0023] Figure 4 This is a circuit diagram of a temperature and humidity sensor according to an embodiment of the present invention. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Reference Figures 1 to 4 This utility model provides an intelligent online temperature and humidity monitoring device for a motor junction box, including a housing. The housing contains a power supply module, a control module, an internal terminal module, a sensor module, and multiple wiring terminals. The power supply module is connected to the control module, which is connected to the internal terminal module, the sensor module, and the multiple wiring terminals. One end of the sensor module is connected to a first end of the internal terminal module, and the other end is connected to one of the multiple wiring terminals. A second end of the internal terminal module is connected to the power supply module, and a third end is connected to one of the multiple wiring terminals. The sensor module monitors the temperature and humidity of the multiple wiring terminals in real time, and the internal terminal module monitors the internal temperature and humidity of the housing. An external relay module is also included, connected to the control module, to receive monitoring information from the sensor module.

[0028] It should be noted that the sensor module is used to monitor the temperature and humidity of each terminal block in real time and upload the data. The sensor module is directly installed at the electrical node inside the housing, eliminating the need for openings or external antennas in the housing, thus maintaining the original airtightness and safety of the motor junction box. The sensor module can also be flexibly fixed via a strap structure, making it compatible with different models of motor junction boxes and avoiding mechanical modifications to the motor junction box. In addition, all devices installed inside the housing use CT power supply to achieve non-contact, no external power supply, and no battery maintenance required. The internal terminal module is installed on any terminal block inside the housing, monitoring the temperature and humidity inside the housing in real time, and simultaneously receiving, integrating, and uploading the temperature and humidity data.

[0029] Furthermore, an external relay module is installed within a maximum range of 10 meters outside the housing and wirelessly connected to the control module. It is used to receive device data from the sensor modules inside the housing and forward the data to the integration center for centralized display and processing via the LoRa wireless unit.

[0030] The power supply module includes a first chip, a second chip, a first magnetic sheet, a second magnetic sheet, a first diode, a second diode, a third diode, a fourth diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, and a fourth resistor. One end of the first magnetic sheet, one end of the second magnetic sheet, and one end of the first capacitor are all connected to one end of the second capacitor. The cathodes of the second capacitor and the second diode, one end of the third capacitor, one end of the fourth capacitor, the anode of the third diode, and one end of the first resistor are all connected to the first chip. The other end of the first magnetic sheet, the other end of the second magnetic sheet, and the cathode of the first diode are all connected to the anode of the second diode. The anode of the first diode is grounded. The other end of the first resistor is connected to one end of the second resistor. The other end of the third capacitor, the other end of the fourth capacitor, the cathode of the third diode, and the other end of the second resistor are all grounded. One end of the third resistor and one end of the fourth resistor are all connected to the first chip. The other end of the fourth resistor is connected to the second chip. One end of the fifth capacitor, one end of the sixth capacitor, and the cathode of the fourth diode are all connected to the first chip.

[0031] It should be noted that the connection method of the first and second magnetic sheets with other components may constitute a magnetic coupling structure, which helps to achieve efficient energy transfer and conversion. For example, in wireless power supply scenarios, it can effectively convert external magnetic field energy into electrical energy, providing a stable power supply for subsequent circuits. The first, second, third, fourth, fifth, and sixth capacitors serve as filters and voltage stabilizers. They smooth voltage fluctuations in the power supply output and reduce high-frequency noise in the power supply, providing a stable DC voltage for key components such as the first and second chips, ensuring that the chips can operate normally under a stable operating voltage, and improving the stability and reliability of the entire monitoring device. The first, second, third, and fourth diodes have multiple protection functions. For example, the anode of the first diode is grounded, and the cathode is connected to other components, which can prevent damage to circuit components when the power supply is reversed, providing reverse protection. Other diodes may also provide limiting, clamping, and other protection functions in the circuit to prevent damage to the circuit from excessively high or low voltage. The combination of the first, second, third, and fourth resistors is used to adjust the current and voltage distribution in the circuit. For example, by reasonably selecting the resistor value, appropriate bias currents are provided to the first and second chips, and current is limited in different branches, thereby meeting the operating requirements of each component and also helping to reduce the power consumption of the circuit.

[0032] In this embodiment, power is drawn from the first and second magnetic sheets and distilled by the first diode to provide the second chip with a stable system power supply.

[0033] The control module includes a third chip, a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth inductor, a sixth inductor, a seventh inductor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, and a sixteenth capacitor. One end of the first inductor is connected to the power supply module. The other end of the first inductor and one end of the seventh capacitor are both connected to one end of the second inductor. The other end of the seventh capacitor is grounded. The other end of the second inductor and one end of the eighth capacitor are respectively connected to one end of the ninth capacitor and one end of the third inductor. The other end of the ninth capacitor and one end of the fifth inductor are both connected to one end of the fourth inductor. The other end of the fourth inductor is grounded. The other ends of the third and fifth inductors are both connected to one end of the tenth capacitor, and the other end of the tenth capacitor is grounded. The other ends of the eighth and eleventh capacitors are both connected to one end of the sixth inductor, and the other end of the eleventh capacitor is grounded. The other end of the sixth inductor is connected to the twelfth capacitor. The other ends of the twelfth capacitor and one end of the seventh inductor are both connected to the third chip. One end of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors is connected to the other end of the seventh inductor, and the other ends of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors are all grounded.

[0034] It should be noted that the control module integrates RF wireless functionality, modulating both the received and transmitted signals. Specifically, the first, second, third, fourth, fifth, sixth, and seventh inductors, along with the seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth, fifteenth, and sixteenth capacitors, form a complex LC filter network. Inductors have the characteristic of passing DC and blocking AC, while capacitors pass AC and block DC. Together, they effectively filter high-frequency noise and low-frequency ripple in the power supply, providing an extremely stable and clean power supply to the third chip. This ensures the chip operates accurately under a stable voltage, greatly improving the stability and reliability of the control module and reducing circuit failures and data errors caused by power fluctuations.

[0035] Multiple inductors and capacitors form an electromagnetic shielding structure, effectively resisting the influence of external electromagnetic interference on the control module. When strong electromagnetic interference exists, the network of inductors and capacitors can bypass or absorb the interference signal, preventing it from entering the third chip. This ensures that the control module can operate normally in complex electromagnetic environments, improving the anti-interference performance of the intelligent online temperature and humidity monitoring device for the motor junction box and expanding its application range.

[0036] Different combinations of inductors and capacitors can be flexibly adjusted according to actual needs. When it is necessary to adapt to different types of motor junction boxes or temperature and humidity monitoring with different accuracy requirements, the control module can be easily optimized by changing the specifications of inductors and capacitors, thereby enhancing the compatibility and expandability of the control module with other devices and adapting to diverse application scenarios.

[0037] The sensor module is equipped with multiple temperature and humidity sensors.

[0038] It should be noted that multiple temperature and humidity sensors can measure the temperature and humidity in the same area or at different locations. Then, through data fusion or averaging algorithms, the potential errors of individual sensors can be reduced, thereby improving the overall accuracy and reliability of the measurement. Furthermore, the sensor module can monitor temperature and humidity conditions at different locations, helping to understand the spatial distribution patterns and trends of temperature and humidity. For example, in large warehouses or production workshops, temperature and humidity may vary in different areas. Multiple sensors can effectively identify hot or cold spots in temperature and humidity, allowing for appropriate control measures. In addition, in complex environments, such as those with temperature and humidity gradients, airflow changes, or localized disturbances, multiple sensors can acquire information from different angles and locations, providing a more comprehensive reflection of the true temperature and humidity conditions of the environment and reducing the influence of environmental factors on the measurement results.

[0039] The temperature and humidity sensor includes a fourth chip, a thirteenth capacitor, an eleventh resistor, and a twelfth resistor. The thirteenth capacitor is connected to the first terminal of the fourth chip, one terminal of the eleventh resistor is connected to the second terminal of the fourth chip, one terminal of the twelfth resistor is connected to the third terminal of the fourth chip, and the other terminals of the eleventh and twelfth resistors are both grounded.

[0040] It should be noted that the thirteenth capacitor is connected to the first terminal of the fourth chip, serving as a filter. It smooths fluctuations in the power supply voltage, providing a stable operating voltage for the fourth chip. This helps reduce the impact of power supply noise on the chip, ensuring accurate acquisition and processing of temperature and humidity signals, and improving measurement accuracy and stability. The eleventh and twelfth resistors are connected to the second and third terminals of the fourth chip, respectively, with their other terminals grounded. The eleventh and twelfth resistors are used to set the chip's operating parameters, determining the bias current or voltage of the internal circuitry of the fourth chip, thus enabling it to operate under appropriate conditions. By adjusting the resistance values ​​of these two resistors, the sensitivity and linearity of the fourth chip to temperature and humidity signals are optimized, improving the overall performance of the sensor.

[0041] The casing also includes a display module.

[0042] It should be noted that the display module is used to display temperature and humidity data, providing a real-time and intuitive view of the temperature and humidity data inside the motor junction box. Without the need for other equipment or software, staff can directly check the display module on-site to quickly understand the temperature and humidity conditions inside the junction box, promptly detect any abnormalities, and facilitate appropriate action.

[0043] The intelligent online temperature and humidity monitoring device for the motor junction box is also equipped with an audible and visual alarm unit.

[0044] It should be noted that when the temperature and humidity exceed the set threshold, the audible and visual alarm unit will issue a visual warning signal through flashing, color changing and sound effects, so that on-site personnel can notice the abnormality immediately and react in time to avoid motor failure or safety accidents caused by abnormal temperature and humidity.

[0045] Secondly, this utility model embodiment also provides an intelligent online monitoring system for temperature and humidity of a motor junction box, comprising:

[0046] The intelligent online monitoring device for temperature and humidity of the motor junction box as described in the first aspect above.

[0047] In the description of this specification, references to terms such as "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A smart online monitoring device for temperature and humidity of a motor junction box, characterized in that, include: The housing includes a power supply module, a control module, an internal terminal module, a sensor module, and multiple wiring terminals. The power supply module is connected to the control module. The control module is connected to the internal terminal module, the sensor module, and the multiple wiring terminals. One end of the sensor module is connected to the first end of the internal terminal module, and the other end of the sensor module is connected to one of the multiple wiring terminals. The second end of the internal terminal module is connected to the power supply module, and the third end of the internal terminal module is connected to one of the multiple wiring terminals. The sensor module is used to monitor the temperature and humidity of the multiple wiring terminals in real time, and the internal terminal module is used to monitor the internal temperature and humidity of the housing. An external relay module is connected to the control module and is used to receive monitoring information from the sensor module.

2. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 1, characterized in that, The power supply module includes a first chip, a second chip, a first magnetic sheet, a second magnetic sheet, a first diode, a second diode, a third diode, a fourth diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, and a fourth resistor. One end of the first magnetic sheet, one end of the second magnetic sheet, and one end of the first capacitor are all connected to one end of the second capacitor. The cathodes of the second capacitor and the second diode, one end of the third capacitor, one end of the fourth capacitor, the anode of the third diode, and one end of the first resistor are all connected to the first chip. The other end of the first magnetic sheet, the other end of the second magnetic sheet, and the cathode of the first diode are all connected to the anode of the second diode. The anode of the first diode is grounded. The other end of the first resistor is connected to one end of the second resistor. The other end of the third capacitor, the other end of the fourth capacitor, the cathode of the third diode, and the other end of the second resistor are all grounded. One end of the third resistor and one end of the fourth resistor are all connected to the first chip. The other end of the fourth resistor is connected to the second chip. One end of the fifth capacitor, one end of the sixth capacitor, and the cathode of the fourth diode are all connected to the first chip.

3. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 1, characterized in that, The control module includes a third chip, a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth inductor, a sixth inductor, a seventh inductor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, a fourteenth capacitor, a fifteenth capacitor, and a sixteenth capacitor. One end of the first inductor is connected to the power supply module. The other end of the first inductor and one end of the seventh capacitor are both connected to one end of the second inductor. The other end of the seventh capacitor is grounded. The other end of the second inductor and one end of the eighth capacitor are respectively connected to one end of the ninth capacitor and one end of the third inductor. The other end of the ninth capacitor and one end of the fifth inductor are both connected to one end of the fourth inductor. The other end of the fourth inductor is grounded. The other ends of the third and fifth inductors are both connected to one end of the tenth capacitor, and the other end of the tenth capacitor is grounded. The other ends of the eighth and eleventh capacitors are both connected to one end of the sixth inductor, and the other end of the eleventh capacitor is grounded. The other end of the sixth inductor is connected to the twelfth capacitor. The other ends of the twelfth capacitor and one end of the seventh inductor are both connected to the third chip. One end of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors is connected to the other end of the seventh inductor, and the other ends of the thirteenth, fourteenth, fifteenth, and sixteenth capacitors are all grounded.

4. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 1, characterized in that, The sensor module is equipped with multiple temperature and humidity sensors.

5. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 4, characterized in that, The temperature and humidity sensor includes a fourth chip, a seventeenth capacitor, an eleventh resistor, and a twelfth resistor. The seventeenth capacitor is connected to the first terminal of the fourth chip, one terminal of the eleventh resistor is connected to the second terminal of the fourth chip, one terminal of the twelfth resistor is connected to the third terminal of the fourth chip, and the other terminals of the eleventh and twelfth resistors are both grounded.

6. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 1, characterized in that, The housing is also equipped with a display module.

7. The intelligent online temperature and humidity monitoring device for motor junction boxes according to claim 1, characterized in that, The intelligent online temperature and humidity monitoring device for the motor junction box is also equipped with an audible and visual alarm unit.

8. A smart online monitoring system for temperature and humidity of a motor junction box, characterized in that, include: The intelligent online monitoring device for temperature and humidity of motor junction boxes as described in any one of claims 1 to 7.

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