Electric energy meter with temperature measurement function

Abstract

The utility model discloses an electric energy meter with a temperature measuring function, which solves the problem that a terminal of an electric energy meter in the prior art is prone to heating of a wiring terminal, even fire disasters and safety accidents due to faults, and comprises a base, a lower end button is mounted on the base, a temperature measuring PCB is arranged on the lower end button, and the temperature measuring PCB is arranged on the base. The temperature measuring PCB is connected with the wiring terminal connecting copper bar on the lower end button, the upper end button is installed on the temperature measuring PCB, and the temperature measuring PCB is connected with the main board through a temperature measuring signal line. The temperature of the wiring terminal of the electric meter can be detected, the safety is improved, and the safety of pins of internal devices of the energy-carrying meter can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to an electric energy meter with temperature measurement function. Background Art

[0002] Electricity meters are used to measure and transmit the raw energy consumed by electricity users. They feature stable and reliable performance, long lifespan, compact size, easy programming, and multi-purpose functionality. With the rapid development of my country's economy, the demand for electricity is increasing across all industries. The importance of managing and controlling electricity through metered data is increasing, placing higher demands on the meter's data functionality and security.

[0003] In energy meter applications, the meter serves as the grid's entry point. Meter terminals connect to high voltages and currents, inevitably creating wiring joints. The quality of these connections is closely related to user overload conditions, installation quality, and aging. Faults in meter terminals, such as poor contact, can cause heating and even fires. Therefore, temperature monitoring of meter terminals is essential. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem in the prior art that a fault in the terminal of an electric energy meter easily leads to heating of the terminal and even fire, resulting in a safety accident. The utility model provides an electric energy meter with temperature measurement. While ensuring the assembly reliability of the temperature measuring device of the electric energy meter and meeting the accuracy of the temperature measurement of the electric energy meter, the solution of assembling the lower terminal button in the base is adopted, which can prevent the pins of the device from being knocked crooked during the process of incoming materials and internal turnover of the factory. It can detect the temperature of the terminal of the electric energy meter and improve safety, and at the same time protect the safety of the pins of the internal device of the electric energy meter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A power meter with temperature measurement includes: a base, a lower end button is installed on the base, a temperature measurement PCB board is provided on the lower end button, the temperature measurement PCB board is connected to the copper bar of the terminal connection on the lower end button, an upper end button is installed on the temperature measurement PCB board, and the temperature measurement PCB board is connected to the main board via a temperature measurement signal line.

[0007] This utility model provides a temperature-measuring PCB-based electric meter. The temperature-measuring PCB is capable of detecting the temperature of representative terminals. The temperature-measuring PCB is connected to the mainboard via a temperature-measuring signal line, transmitting the measured temperature to the mainboard for easy viewing by staff. Furthermore, the lower end knob is assembled within the base, preventing the pins of the device from being distorted during incoming materials and factory circulation.

[0008] Preferably, a hook is installed on the base, and the hook is connected to the temperature measurement PCB board.

[0009] Preferably, the base and the lower end button are both provided with a slot, and the temperature measurement signal line is fixed in the slot.

[0010] Preferably, a supporting rib is provided at the bottom of the upper end button, and the position of the supporting rib is opposite to the position of the copper bar connected to the terminal.

[0011] Preferably, a surface-mount temperature sensor is provided on the temperature measurement PCB board.

[0012] Preferably, thermally conductive silicone is provided at the connection between the copper bar connecting the terminal and the temperature measuring PCB board.

[0013] Preferably, a temperature signal amplifier and an analog-to-digital converter are provided on the temperature measurement PCB board, the temperature signal amplifier is connected to the temperature sensor, and the analog-to-digital converter is connected to the mainboard.

[0014] Preferably, the base is provided with device pins, and the device pins are located below the temperature measurement PCB board.

[0015] Preferably, the height of the base is greater than the height of the lower end button.

[0016] Therefore, the utility model has the following beneficial effects:

[0017] 2. By setting up a temperature measuring PCB board, the temperature measuring PCB board is connected to the copper bar of the terminal on the lower end button, which can detect the temperature of the terminal. At the same time, the temperature measuring PCB board is connected to the main board through a temperature measuring signal line, which can transmit the measured temperature to the main board for easy viewing by staff.

[0018] 2. The solution of assembling the lower end button in the base can prevent the pins of the device from being knocked crooked during the process of incoming materials and internal factory turnover.

[0019] 3. While ensuring the assembly reliability of the temperature measuring device and meeting the temperature measurement accuracy, place the temperature measuring PCB above the lower end button and securely fix it with the hook on the base, which can improve the production efficiency during the assembly of the entire meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the intelligent electric energy meter with temperature measurement function in the utility model.

[0021] Figure 2 It is a schematic diagram of the temperature measurement signal line in the present utility model.

[0022] Figure 3 This is a schematic diagram of the pin distribution of the device in the utility model.

[0023] Figure 4 It is a structural schematic diagram of the supporting rib on the upper end button of the utility model.

[0024] In the figure: 1. Base; 2. Upper end button; 3. Temperature measurement PCB board; 4. Thermal conductive silicone; 5. Lower end button; 6. Hook; 7. Device pin; 8. Temperature measurement signal line; 9. Support rib. DETAILED DESCRIPTION

[0025] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0026] Example 1:

[0027] This embodiment is an electric energy meter with temperature measurement function, and its overall structure is as follows: Figure 1 As shown, it includes: a base 1, an upper end button 2, a temperature measuring PCB board 3, a lower end button 5 and a temperature measuring signal line 8. The lower end button is installed in the base, wherein the lower end button is provided with a wiring terminal connected to the copper strip. The temperature measuring PCB board is installed above the lower end button, and the upper end button is installed above the temperature measuring PCB board. The temperature measuring PCB board is respectively connected to the temperature measuring signal line and the wiring terminal is connected to the copper strip. The temperature measuring signal line is connected to the mainboard.

[0028] The smart energy meter with temperature measurement function provided in this embodiment, when in use, the temperature measurement PCB board detects the temperature of the copper bar connected to the terminal and sends the detected temperature to the main board. The main board displays the temperature of the terminal measured by the temperature measurement PCB board for easy viewing by staff / users.

[0029] The smart electricity meter with temperature measurement provided in this embodiment adds copper terminal temperature monitoring to a conventional electricity meter. This function can detect the temperature of the meter's wiring terminals, preventing overheating and even fires caused by faulty terminals, thereby improving safety. Furthermore, the meter assembly and production process is optimized by installing the lower terminal button in the base, effectively preventing device pins from being knocked out of alignment during transportation and turnover.

[0030] The smart electricity meter with temperature measurement function provided by this embodiment is further described below with reference to its specific structure.

[0031] like Figure 2 As shown, in this embodiment, since a temperature measurement function is added to the electric meter, the temperature measurement signal of the temperature measurement PCB board needs to be transmitted to the main board, so four temperature measurement signal lines are required.

[0032] Furthermore, the base and the lower end button are provided with card slots, and the four temperature measurement signal wires are fixed in the card slots, which effectively prevents the wires from being entangled and the wiring from being messy.

[0033] like Figure 3As shown, the base is provided with a plurality of device pins 7. Furthermore, because the lower end button is mounted inside the base in this embodiment and the base is higher than the lower end button, the device pins are mounted inside the base and shielded by the base and the lower end button, effectively preventing the device pins from external impact, thereby achieving a protective effect on the device pins.

[0034] like Figure 1 As shown, in this embodiment, a hook 6 is installed on the base, and the hook is connected to the temperature measuring PCB board, so that the temperature measuring PCB board can be fixed on the base and limited to prevent the temperature measuring PCB board from moving, thereby increasing the accuracy of temperature measurement of the temperature measuring PCB board.

[0035] Furthermore, to engage with the hook on the base, a through hole is provided on the temperature measurement PCB at a position corresponding to the hook on the base. During installation, the hook passes through the through hole from the bottom of the temperature measurement PCB and hooks onto the top of the temperature measurement PCB, thereby securing the temperature measurement PCB.

[0036] Specifically, in this embodiment, two hooks are provided, and at the same time, two through holes are provided on the temperature measuring PCB board. The two through holes are staggered and are not on the same horizontal line, so that the temperature measuring PCB board is fixed more stably.

[0037] like Figure 1 As shown, the connection between the copper strip of the terminal and the temperature measuring PCB board is coated with thermal conductive silicone 4.

[0038] Specifically, in this embodiment, there are four copper bars connected to the wiring terminals, so there are only four pieces of thermal conductive silicone rubber, which are only installed at the copper bars connected to the wiring terminals.

[0039] Thermally conductive silicone is used to conduct the temperature of the copper strips connected to the terminal blocks, thereby improving the accuracy of temperature measurement on the PCB board.

[0040] like Figure 4 As shown, a supporting rib 9 is provided at the bottom of the upper end button, and the position of the supporting rib is opposite to the position of the copper bar connected to the terminal.

[0041] Furthermore, in this embodiment, there are four support ribs, each corresponding to the location of the four copper strips connected to the terminal blocks. These support ribs serve to firmly press the temperature measurement PCB, ensuring close contact between the temperature measurement PCB and the copper strips connected to the terminal blocks, thereby improving the accuracy of the temperature measurement.

[0042] Based on the above structure, the smart electric energy meter with temperature measurement function provided in this embodiment has the following beneficial effects:

[0043] (1) Add the copper terminal temperature monitoring function to the ordinary electric energy meter. By setting up a temperature measuring PCB board, the temperature measuring PCB board is connected to the copper bar connecting the terminal on the lower end button, which can detect the terminal temperature. At the same time, the temperature measuring PCB board is connected to the main board, which can transmit the measured temperature to the main board for easy viewing by staff.

[0044] (2) The solution of assembling the lower end button in the base can avoid the pins of the device from being knocked crooked during the process of incoming materials and internal turnover in the factory.

[0045] (3) Through structural design, the temperature measurement PCB board is firmly fixed to ensure the consistency and accuracy of the temperature data of the terminal blocks detected by the smart energy meter with temperature measurement function.

[0046] (4) By improving the structure, the production process of the electric meter can be reduced, which facilitates automated production and improves production efficiency.

[0047] Example 2:

[0048] This embodiment provides an electric energy meter with temperature measurement function, which is brought into a specific application scenario and further limits the smart electric energy meter with temperature measurement function in the first embodiment.

[0049] In a certain community, a batch of new smart meters need to be installed. The demand for smart meters is large, but the assembly efficiency of traditional smart electricity meters is low, resulting in low production efficiency of smart meters, which affects the installation of smart meters in the community.

[0050] The smart electric energy meter with temperature measurement function provided in this embodiment has the following improvements in assembly:

[0051] (1) Base assembly.

[0052] Because the smart energy meter with temperature measurement function provided in this embodiment has an additional temperature measurement function, it is necessary to transmit the temperature measurement signal from the temperature measurement board to the main board, which requires four temperature measurement signal lines. Therefore, card slots are added to the base and the terminal, and the temperature measurement signal lines are fixed in the card slots, and assembled in a contracted factory. The base, the lower terminal, and the four temperature measurement signal lines are integrated into a whole, which reduces the number of scattered materials and facilitates automated production in smart factories. On the other hand, installing the lower terminal into the base can effectively utilize the fact that the base is higher than the terminal, thereby preventing the device pins in the base from being hit, thereby achieving a protective effect on the device pins.

[0053] (2) Temperature measurement PCB board assembly.

[0054] To enable the electric meter to monitor the temperature of the current copper terminal, a temperature measurement PCB board is added in this embodiment. A patch-type digital temperature sensor is placed on the temperature measurement PCB board, and thermal conductive silicone is attached to the copper strips connected to the terminal to conduct the temperature. The patch-type digital temperature sensor is connected to the copper strips connected to the terminal via the thermal conductive silicone.

[0055] In this embodiment, to ensure reliable contact between the temperature measurement PCB and the thermally conductive silicone rubber, and to ensure accurate and consistent temperature measurement, a groove is formed in the copper strip connecting the terminal block. A thermally conductive silicone sleeve is fitted over the patch-type digital temperature sensor. One end of the patch-type digital temperature sensor, fitted with the thermally conductive silicone sleeve, is inserted into the groove in the copper strip connecting the terminal block. The thermally conductive silicone sleeve is then squeezed and deformed to fill the entire gap. This simple thermally conductive silicone filling method ensures good contact between the thermally conductive silicone and both the patch-type digital temperature sensor and the copper strip connecting the terminal block, thereby improving the accuracy of temperature measurement on the temperature measurement PCB. Furthermore, the self-covering thermally conductive silicone sleeve reduces the assembly precision requirements between the patch-type digital temperature sensor and the copper strip connecting the meter terminal block while ensuring thermal conductivity. This structurally bridges the gap between the process tolerances of the structural components and fully utilizes the thermal conductivity, flexibility, and deformability of the thermally conductive silicone rubber.

[0056] Furthermore, the SMD digital temperature sensor and thermal conductive silicone sleeve are integrally molded, making the production process simpler, more efficient, more consistent, and more accurate in temperature measurement.

[0057] The smart energy meter with temperature measurement function provided in this embodiment can also fix the temperature measurement PCB board on the base and limit it by adding a hook on the base to prevent the temperature measurement PCB board from moving, thereby increasing the accuracy and consistency of temperature measurement.

[0058] (3) Assemble the upper button.

[0059] Due to the high requirements for temperature measurement error, the influence of external factors must be considered during design. Support ribs (indicated by arrows) are added to the upper end button to further secure the temperature measurement PCB. This provides a position limit for the temperature measurement PCB, ensuring consistent compression of the thermal silicone, and thus ensuring consistent temperature measurement data during mass production.

[0060] Based on the above structure, the smart electric energy meter with temperature measurement function provided in this embodiment has the following beneficial effects:

[0061] (1) While ensuring the assembly reliability of the temperature measuring device and meeting the temperature measurement accuracy, the temperature measuring plate is placed above the lower end button and securely fixed with the hook on the base, which can improve the production efficiency of the meter assembly.

[0062] (2) Optimize the assembly process and adopt the solution of assembling the lower end button in the base, which can effectively prevent the pins of the device from being knocked crooked during the transportation of incoming materials and turnover within the factory.

[0063] (3) Through structural design and adjustment of assembly procedures, the temperature measurement signal line is pre-installed in the base during the external processing step, so as to save the time of installing the wire during the assembly of the whole machine.

[0064] (4) Integrate the assembly process to achieve step-by-step installation of different modules and reduce the number of individual materials;

[0065] (5) Through structural design, the production process of the whole machine assembly link in the factory is reduced, and it is better adapted to the production line with a high degree of automation, thereby improving the production efficiency of the smart electricity meter with temperature measurement function.

[0066] Example 3:

[0067] This embodiment provides an electric energy meter with temperature measurement function, which is brought into a specific application scenario and further limits the smart electric energy meter with temperature measurement function in the first embodiment.

[0068] A residential complex needed to install a batch of new smart meters. These meters' terminals connect to high voltages and currents. A faulty terminal could easily cause the meters to burn out and be damaged. The safe use of smart meters not only impacts the normal operation of the power grid but also the safety of life and property of residents in the community. Therefore, improving the safety testing of energy meters has become a pressing issue for those skilled in the art.

[0069] The smart electricity meter with a temperature measurement function provided in this embodiment includes: a base 1, an upper terminal button 2, a temperature measurement PCB board 3, a lower terminal button 5 and a temperature measurement signal line 8. The lower terminal button is installed in the base, wherein the lower terminal button is provided with a wiring terminal connected to a copper bar; the temperature measurement PCB board is installed above the lower terminal button; the upper terminal button is installed above the temperature measurement PCB board; the temperature measurement PCB board is respectively connected to the temperature measurement signal line and the wiring terminal is connected to the copper bar; and the temperature measurement signal line is connected to the main board.

[0070] The smart energy meter with temperature measurement function provided in this embodiment, when in use, the temperature measurement PCB board detects the temperature of the copper bar connected to the terminal and sends the detected temperature to the main board. The main board displays the temperature of the terminal measured by the temperature measurement PCB board for easy viewing by staff / users.

[0071] Furthermore, in this embodiment, a chip-type digital temperature sensor is provided on the temperature measurement PCB board, and the temperature measurement PCB board includes a temperature signal amplifier and an analog-to-digital converter. The temperature signal amplifier is connected to the chip-type digital temperature sensor, the temperature signal amplifier is connected to the analog-to-digital converter, and the analog-to-digital converter is connected to the mainboard.

[0072] During operation, the SMD digital temperature sensor outputs the temperature measurement signal of the terminal, the temperature signal amplifier receives the temperature measurement signal, amplifies the temperature measurement signal, and sends the amplified temperature measurement signal to the analog-to-digital converter. The analog-to-digital converter converts the temperature measurement signal into digital form, and the converted digital signal is processed by the digital circuit on the mainboard.

[0073] The mainboard is connected to a display screen, which can realize the power data display function of an ordinary electric meter and can also display the temperature of the copper strip connected to the terminal measured by the temperature measurement PCB board.

[0074] Furthermore, in this embodiment, a temperature alarm module is also provided. The temperature alarm module is connected to the main board and the temperature measurement PCB board respectively. It can alarm when the temperature of the copper bar connected to the terminal measured by the temperature measurement PCB board exceeds the threshold, prompting the user that there is a fault at the meter connection and maintenance is required in time to prevent accidents.

[0075] At the same time, the staff can also judge the fault problem based on the temperature measurement data of the temperature measurement PCB board. For example: if the electricity meter falls off and the temperature of the copper bar connected to the terminal is within the normal range 15 minutes or several hours before the electricity meter falls off, it can basically be judged that the electricity meter is not burned out; if the temperature of the copper bar connected to the terminal is high 15 minutes or several hours before the electricity meter falls off, it can be judged that the electricity meter may be burned out.

[0076] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An electric energy meter with temperature measurement, characterized in that: include: The base is provided with a lower end button, the lower end button is provided with a temperature measuring PCB board, the temperature measuring PCB board is connected to the copper bar connecting the terminal on the lower end button, the upper end button is provided on the temperature measuring PCB board, and the temperature measuring PCB board is connected to the main board through a temperature measuring signal line.

2. The electric energy meter with temperature measurement according to claim 1, characterized in that: A hook is installed on the base, and the hook is connected to the temperature measurement PCB board.

3. An electric energy meter with temperature measurement according to claim 1 or 2, characterized in that: The base and the lower end button are both provided with card slots, and the temperature measurement signal line is fixed in the card slots.

4. An electric energy meter with temperature measurement according to claim 1 or 2, characterized in that: A supporting rib is provided at the bottom of the upper end button, and the position of the supporting rib is opposite to the position of the copper bar connected to the wiring terminal.

5. The electric energy meter with temperature measurement according to claim 1, characterized in that: The temperature measurement PCB board is provided with a patch type temperature sensor.

6. The electric energy meter with temperature measurement according to claim 1 or 5, characterized in that: The connection between the copper strip of the terminal block and the temperature measuring PCB board is provided with thermal conductive silica gel.

7. The electric energy meter with temperature measurement according to claim 5, characterized in that: A temperature signal amplifier and an analog-to-digital converter are provided on the temperature measurement PCB board. The temperature signal amplifier is connected to the temperature sensor, and the analog-to-digital converter is connected to the mainboard.

8. An electric energy meter with temperature measurement according to claim 1, 2, 5 or 7, characterized in that: Device pins are provided on the base, and the device pins are located below the temperature measurement PCB board.

9. The electric energy meter with temperature measurement according to claim 1, characterized in that: The height of the base is greater than the height of the lower end button.

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