Power distribution room temperature measuring device

Abstract

The utility model provides a temperature measuring device for a power distribution room, particularly relates to the technical field of power distribution room temperature measurement, and aims to solve the problem of packet loss caused by high-voltage environment electromagnetic interference due to common wireless data transmission of an existing temperature measuring device. In addition, a battery of an existing temperature measuring device needs to be replaced regularly, and the maintenance risk is high in a high-voltage environment. The device comprises a shell, a main control module, a wireless communication module, a temperature sensor and a power supply module are arranged in the shell, the wireless communication module, the temperature sensor and the power supply module are electrically connected with the main control module, and an energy taking module electrically connected with the power supply module is further arranged in the shell. The main control module, the wireless communication module, the temperature sensor, the power supply module and the energy taking module are respectively wrapped by an electromagnetic shielding cover. The device can prevent electromagnetic interference of a high-voltage environment; and a worker can be prevented from replacing and maintaining the power supply in a high-voltage environment, so that the working risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology in power distribution rooms, and more specifically, to a temperature measurement device for power distribution rooms. Background Technology

[0002] Traditional power distribution rooms present numerous safety hazards in actual operation, necessitating temperature monitoring devices to facilitate timely detection and handling of anomalies. However, existing temperature monitoring devices often utilize wireless data transmission, which is susceptible to electromagnetic interference in high-voltage environments, leading to packet loss. Furthermore, the batteries in existing temperature monitoring devices require regular replacement, posing significant maintenance risks in high-voltage environments. Utility Model Content

[0003] The purpose of this invention is to provide a temperature measuring device for power distribution rooms that can prevent electromagnetic interference in high-voltage environments and avoid workers from replacing or maintaining power supplies in high-voltage environments, thereby reducing work risks.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A temperature measuring device for a power distribution room includes a housing. Inside the housing are a main control module, a wireless communication module electrically connected to the main control module, a temperature sensor, and a power supply module. Inside the housing is also a power harvesting module electrically connected to the power supply module. The main control module, the wireless communication module, the temperature sensor, the power supply module, and the power harvesting module are all encased in electromagnetic shielding covers.

[0006] In some embodiments, the inner side of the housing is horizontally formed by two partition plates to create a first side placement space, a central placement space, and a second side placement space; the power module is disposed in the first side placement space, the main control module and the wireless communication module are disposed in the central placement space, and the temperature sensor and the energy harvesting module are disposed in the second side placement space; the bottoms of the power module and the temperature sensor are in contact with the bottom surface of the inner wall of the housing, the main control module is fixedly disposed at the center of the central placement space, and the wireless communication module is fixedly disposed above the main control module.

[0007] In some embodiments, the bottom of the housing is provided with a mounting plate, and a plurality of magnets are evenly distributed around the bottom of the mounting plate.

[0008] In some embodiments, a rotating shaft is mounted above the mounting plate, the rotating shaft is rotatably connected to the housing, the top end of the rotating shaft is disposed inside the housing and is driven to rotate by a motor, the motor being electrically connected to the main control module; a bearing is connected between the rotating shaft and the housing, the housing is provided with an electromagnetic brake that matches the bearing, the electromagnetic brake being electrically connected to the main control module; a magnetic encoder electrically connected to the main control module is provided on the rotating shaft.

[0009] In some embodiments, a heat dissipation groove is provided on the side wall of the housing of the first side placement space.

[0010] In some embodiments, the wireless communication module includes a LoRa module and an Enocean module, which are independently packaged within the electromagnetic shielding cover.

[0011] In some embodiments, the power module includes a supercapacitor, a coin cell battery, and a voltage regulator electrically connected to both.

[0012] In some embodiments, the energy harvesting module includes a Bi2Te3-based thermoelectric module.

[0013] In some embodiments, the temperature sensor is electrically connected to the main control module via the signal conditioning circuit above it.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] 1. This device protects each module from electromagnetic interference in a high-voltage environment by using an electromagnetic shielding cover; and it supplies power to the power module through an energy harvesting module, avoiding the need for personnel to replace or maintain the power supply in a high-voltage environment, thus reducing work risks. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of a temperature measuring device for a power distribution room provided in an embodiment of the present invention;

[0018] Figure 2 This is a top view of the internal structure of a temperature measuring device for a power distribution room provided in an embodiment of the present invention;

[0019] Figure 3 This is a bottom view of a temperature measuring device for a power distribution room provided in an embodiment of this utility model.

[0020] Icons: 1. Housing; 2. Main control module; 3. Temperature sensor; 4. Electromagnetic shield; 5. Isolation plate; 6. First side placement space; 7. Central placement space; 8. Second side placement space; 9. Mounting plate; 10. Shaft; 11. Motor; 12. Bearing; 13. Electromagnetic brake; 14. Magnetic encoder; 15. Heat sink; 16. LoRa module; 17. Enocean module; 18. Supercapacitor; 19. Button battery; 20. Voltage regulator; 21. Bi2Te3-based thermoelectric module; 22. Signal conditioning circuit; 23. End cap; 24. Magnet. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figures 1-3 As shown, the main body of this embodiment is a power distribution room temperature measuring device, including a housing 1. The housing 1 is equipped with a main control module 2, a wireless communication module electrically connected to the main control module 2, a temperature sensor 3, and a power supply module. The housing 1 is also equipped with an energy harvesting module electrically connected to the power supply module. The main control module 2, the wireless communication module, the temperature sensor 3, the power supply module, and the energy harvesting module are all covered with electromagnetic shielding covers 4.

[0027] It is worth mentioning that the main control module 2 includes an STM32 main control chip and a PMIC power management chip, which have the advantages of low power consumption and high performance, and intelligently manage the energy of the power module through the PMIC power management chip.

[0028] In addition, the electromagnetic shielding cover 4 is made of permalloy, which has extremely high magnetic permeability and can effectively absorb and shield electromagnetic waves, protecting the various modules inside the housing 1 from external electromagnetic interference. The housing 1 is made of aluminum alloy, which is not only lightweight but also has good heat dissipation performance.

[0029] Among them, the electromagnetic shielding cover 4 protects each module from electromagnetic interference in the high-voltage environment; and the power supply module is powered by the energy harvesting module, so that the staff do not need to replace or maintain the power supply in the high-voltage environment, thus reducing the work risk.

[0030] In some embodiments, the inner side of the housing 1 is horizontally formed by two partition plates 5 to form a first side placement space 6, a central placement space 7, and a second side placement space 8; the power module is disposed in the first side placement space 6, the main control module 2 and the wireless communication module are disposed in the central placement space 7, and the temperature sensor 3 and the energy harvesting module are disposed in the second side placement space 8; the bottom of the power module and the temperature sensor 3 are in contact with the bottom surface of the inner wall of the housing 1, the main control module 2 is fixedly disposed at the center of the central placement space 7, the wireless communication module is fixedly disposed above the main control module 2, and an end cap 23 is detachably connected to the upper end of the housing 1, the thickness of the end cap 23 being less than the thickness of the base of the housing 1.

[0031] The modules are arranged vertically in layers according to their electromagnetic characteristics and heat source distribution. The upper middle layer inside the housing 1 is a wireless communication module, which is located away from the base of the housing 1 to facilitate signal transmission. The middle layer inside the housing 1 is the main control module 2, which is located in the center of the housing 1 and away from the external electromagnetic environment. The temperature sensor 3, the power supply module and the energy harvesting module are connected to the base of the housing 1 to achieve efficient heat conduction with the outside world.

[0032] In some embodiments, the bottom of the housing 1 is provided with a mounting plate 9, and a plurality of magnets are evenly distributed around the bottom of the mounting plate 9.

[0033] Among them, the magnet facilitates the installation or removal of the device on the metal inner wall of the power distribution room.

[0034] In some embodiments, a rotating shaft 10 is mounted above the mounting plate 9. The rotating shaft 10 is rotatably connected to the housing 1. The top end of the rotating shaft 10 is located inside the housing 1 and is driven to rotate by a motor 11. The motor 11 is electrically connected to the main control module 2. A bearing 12 is connected between the rotating shaft 10 and the housing 1. An electromagnetic brake 13 matching the bearing 12 is provided on the housing 1. The electromagnetic brake 13 is electrically connected to the main control module 2. A magnetic encoder 14 electrically connected to the main control module 2 is provided on the rotating shaft 10.

[0035] Since the mounting plate 9 is fixed to the power distribution room by the magnet 24, the rotation of the motor 11 drives the entire housing 1 to rotate. This rotation ensures the LoRa / Enocean antenna and the base station form the optimal radiation direction. When local overheating is detected, the automatic rotation turns the sensor away from the heat source, protecting the core circuitry from thermal radiation damage. The electromagnetic brake 13 is used to lock the rotation angle, and the magnetic encoder 14 is used for angle measurement.

[0036] In some embodiments, the housing 1 of the first side placement space 6 is provided with a fin-shaped heat dissipation groove 15.

[0037] The heat dissipation groove 15 facilitates the dissipation of heat generated by the power module in the first side placement space 6 to the outside of the housing 1.

[0038] In some embodiments, the wireless communication module includes a LoRa module 16 and an Enocean module 17, which are independently installed within the electromagnetic shielding cover 4.

[0039] Among them, LoRa module 16 can transmit signals over long distances in a low-power state, while Enocean module 17 can transmit signals over short distances in an ultra-low-power state.

[0040] In some embodiments, the power module includes a supercapacitor 18, a coin cell battery 19, and an LDO regulator 20 electrically connected to both.

[0041] Among them, the supercapacitor 18 is a 3.3F / 5.5V symmetrical capacitor with a high cycle life, and the LDO regulator 20 is used to stabilize the output voltage.

[0042] In some embodiments, the energy harvesting module includes a Bi2Te3-based thermoelectric module 21.

[0043] Among them, the Bi2Te3-based thermoelectric module 21 can realize the conversion of thermal energy and electrical energy, so that the power module can be directly charged by external thermal energy.

[0044] In some embodiments, the temperature sensor 3 is electrically connected to the main control module 2 via the signal conditioning circuit 22 above it.

[0045] Among them, the signal conditioning circuit 22 cuts off the electrical connection between the signal source and the measuring equipment through isolation technology to prevent interference and high voltage damage.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A temperature measuring device for a power distribution room, characterized in that, The device includes a housing (1), inside which is a main control module (2), a wireless communication module, a temperature sensor (3), and a power supply module electrically connected to the main control module (2). Inside the housing (1) is also an energy harvesting module electrically connected to the power supply module. The main control module (2), the wireless communication module, the temperature sensor (3), the power supply module, and the energy harvesting module are all covered with electromagnetic shielding covers (4).

2. The temperature measuring device for a power distribution room according to claim 1, characterized in that, The inner side of the housing (1) is formed horizontally by two isolation plates (5) to form a first side placement space (6), a central placement space (7), and a second side placement space (8); the power module is set in the first side placement space (6), the main control module (2) and the wireless communication module are set in the central placement space (7), and the temperature sensor (3) and the energy harvesting module are set in the second side placement space (8); the bottom of the power module and the temperature sensor (3) are connected to the bottom surface of the inner wall of the housing (1), the main control module (2) is fixedly set in the center of the central placement space (7), the wireless communication module is fixedly set above the main control module (2), and an end cap (23) is detachably connected to the upper end of the housing (1), the thickness of the end cap (23) is less than the thickness of the base of the housing (1).

3. The temperature measuring device for a power distribution room according to claim 1, characterized in that, The bottom of the housing (1) is provided with a mounting plate (9), and a plurality of magnets (24) are evenly distributed around the bottom of the mounting plate (9).

4. The temperature measuring device for a power distribution room according to claim 3, characterized in that, A rotating shaft (10) is mounted above the mounting plate (9). The rotating shaft (10) is rotatably connected to the housing (1). The top end of the rotating shaft (10) is located inside the housing (1) and is driven to rotate by a motor (11). The motor (11) is electrically connected to the main control module (2). A bearing (12) is connected between the rotating shaft (10) and the housing (1). An electromagnetic brake (13) matching the bearing (12) is provided on the housing (1). The electromagnetic brake (13) is electrically connected to the main control module (2). A magnetic encoder (14) electrically connected to the main control module (2) is provided on the rotating shaft (10).

5. A temperature measuring device for a power distribution room according to claim 2, characterized in that, The first side placement space (6) has a heat dissipation groove (15) on the side wall of the housing (1).

6. A temperature measuring device for a power distribution room according to claim 2, characterized in that, The wireless communication module includes a LoRa module (16) and an Enocean module (17), which are independently installed in the electromagnetic shielding cover (4).

7. A temperature measuring device for a power distribution room according to claim 1, characterized in that, The power module includes a supercapacitor (18), a button cell (19), and a voltage regulator (20) electrically connected to both.

8. A temperature measuring device for a power distribution room according to claim 1, characterized in that, The energy harvesting module includes a Bi2Te3-based thermoelectric module (21).

9. A temperature measuring device for a power distribution room according to claim 2, characterized in that, The temperature sensor (3) is electrically connected to the main control module (2) via the signal conditioning circuit (22) above.

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