Electric energy meter with terminal temperature monitoring function

Abstract

This utility model discloses an energy meter with terminal temperature monitoring function, including an energy meter body, a mounting base fixed to the bottom of the energy meter body, a mounting groove formed on the outer wall of the mounting base, a first iron plate installed inside the mounting groove, a plurality of first terminals fixed linearly at the bottom of the first iron plate, a second iron plate installed inside the mounting groove, the second iron plate being located below the plurality of first terminals, a plurality of second terminals fixed linearly at the top of the second iron plate, and the plurality of second terminals corresponding one-to-one with the plurality of first terminals. When the temperature of the first or second terminals rises, the surface temperature of the second iron plate rises, which in turn raises the surface temperature of two memory springs. When the temperature reaches a certain threshold, the two memory springs automatically return to their original state, causing the first and second terminals to separate, thereby achieving power-off protection and avoiding safety accidents caused by high temperature.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to an electricity meter with terminal temperature monitoring function. Background Technology

[0002] An electricity meter, also known as an energy meter, is an instrument used to measure electrical energy consumption. It is typically installed in residential, commercial, or industrial locations to record the electricity consumed by users, enabling power companies to calculate billing information. The terminals of the electricity meter are key components connecting the power source and the load; their temperature changes directly affect the meter's performance and safety. Excessively high terminal temperatures can damage internal components, age insulation materials, and even cause electrical fires and other safety hazards. Therefore, an electricity meter with terminal temperature monitoring capabilities is needed.

[0003] Traditional electricity meters typically lack temperature monitoring at their terminals. When the terminals become too hot, it can lead to serious problems such as short circuits and poor contact. This lack of real-time temperature monitoring prevents users from promptly identifying potential safety hazards, increasing the risk of equipment failure and accidents. Furthermore, traditional electricity meters are usually secured with multiple bolts and nuts, making maintenance particularly cumbersome. When the terminals become too hot and require inspection and repair, operators must disassemble each bolt and nut individually, consuming significant time and effort. After repairs, all bolts and nuts must be reinstalled, further reducing work efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an energy meter with terminal temperature monitoring function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An energy meter with terminal temperature monitoring function includes an energy meter body. A mounting base is fixed to the bottom of the energy meter body. An mounting groove is formed on the outer wall of the mounting base. A first iron plate is installed inside the mounting groove. Multiple first terminals are linearly fixed to the bottom of the first iron plate. A second iron plate is installed inside the mounting groove, located below the multiple first terminals. Multiple second terminals are linearly fixed to the top of the second iron plate, with each second terminal corresponding to one of the multiple first terminals. Sliding rods are fixed to both ends of the bottom of the first iron plate, with one end of each sliding rod penetrating the bottom of the second iron plate. Memory springs are sleeved on the sidewalls of both sliding rods. The memory springs are all located below the second iron plate, and one end of each memory spring is fixed to the second iron plate. The mounting groove is equipped with a moving mechanism for moving the first and second iron plates. The side wall of the mounting groove is equipped with a sealing plate, and both ends of the mounting base are equipped with fixing mechanisms for fixing the sealing plate. During the use of the electricity meter body, when the temperature of the first or second terminal rises, the surface temperature of the second iron plate rises, which in turn causes the surface temperature of the two memory springs to rise. When the temperature reaches a certain threshold, the two memory springs can automatically return to their original state, causing the first and second terminals to separate, thereby achieving power outage protection and avoiding safety accidents caused by high temperature.

[0007] Preferably, the moving mechanism includes two slide blocks, which are symmetrically fixed to the side wall of the mounting groove. A slider is slidably connected to the top of each slide block, and each slider is fixed to one of two sliding rods. The other ends of the two memory springs are fixed to the two sliders respectively. An L-shaped plate is fixed to one end of the top of each slider, and one end of each L-shaped plate is fixed to a sealing plate. The fixing mechanism includes a sleeve, which is disposed through one side wall of the mounting groove. A circular plate is slidably connected to the inner side wall of the sleeve. A column is fixed to one end of the circular plate, and the column passes through one end of the sleeve. A connecting rod is fixed to the other end of the circular plate, and the connecting rod passes through the other end of the sleeve. The sleeve is internally provided with… A return spring is provided and sleeved on the side wall of the connecting rod. One end of the sealing plate has a round hole that matches the column. When the main body of the energy meter is broken and multiple first terminals and multiple second terminals need to be inspected or repaired, the two connecting rods are pulled, causing the two round plates to move along the inner side walls of the two sleeves respectively. This causes the two columns to disengage from the two round holes, releasing the fixed state of the sealing plate. The sealing plate, in conjunction with the two L-shaped plates, causes the two slide blocks and two sliders to move relative to each other. When the two sliders move, the two sliding rods can move the first iron plate and the second iron plate as a whole to the outside of the mounting groove, eliminating the need for bolt and nut fixing, saving time and improving work efficiency.

[0008] Preferably, the outer walls at both ends of the mounting base are provided with through grooves, and both through grooves are connected to the mounting groove. The design of the two through grooves facilitates wire threading.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. During the use of the main body of the electricity meter, when the temperature of the first or second terminal rises, the surface temperature of the second iron plate rises, which in turn causes the surface temperature of the two memory springs to rise. When the temperature reaches a certain threshold, the two memory springs can automatically return to their original state, causing the first and second terminals to separate, thereby achieving power outage protection and avoiding safety accidents caused by high temperature.

[0011] 2. The design of two fixing mechanisms makes fixing and releasing the sealing plate simple and quick. Maintenance personnel only need to release the fixing of the sealing plate to move it. The first iron plate and the second iron plate can be taken out of the mounting slot as a whole, which facilitates the inspection and maintenance of the wiring terminals. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an energy meter with terminal temperature monitoring function proposed in this utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of the mounting base of an energy meter with terminal temperature monitoring function proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the moving mechanism of an energy meter with terminal temperature monitoring function proposed in this utility model;

[0015] Figure 4 This is a schematic diagram showing the unfolded cross-section of the first iron plate of an energy meter with terminal temperature monitoring function proposed in this utility model.

[0016] Figure 5 This is a schematic diagram of the structure of an energy meter with terminal temperature monitoring function proposed in this utility model.

[0017] In the diagram: 1. Electricity meter body; 2. Mounting base; 3. Through groove; 4. Sealing plate; 5. Mounting groove; 6. Slide block; 7. Slider; 8. L-shaped plate; 9. First iron plate; 10. Second iron plate; 11. Slide rod; 12. Memory spring; 13. Sleeve; 14. First terminal; 15. Second terminal; 16. Round hole; 17. Circular plate; 18. Column; 19. Return spring; 20. Connecting rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1 - Figure 5 An energy meter with terminal temperature monitoring function includes an energy meter body 1, a mounting base 2 fixed to the bottom of the energy meter body 1, an mounting groove 5 formed on the outer wall of the mounting base 2, a first iron plate 9 installed inside the mounting groove 5, a plurality of first terminals 14 linearly fixed to the bottom of the first iron plate 9, a second iron plate 10 installed inside the mounting groove 5, the second iron plate 10 being located below the plurality of first terminals 14, a plurality of second terminals 15 linearly fixed to the top of the second iron plate 10, and the plurality of second terminals 15 corresponding one-to-one with the plurality of first terminals 14, a sliding rod 11 fixed to both ends of the bottom of the first iron plate 9, one end of each sliding rod 11 penetrating the bottom of the second iron plate 10, and a memory spring 12 sleeved on the side wall of each of the two sliding rods 11, and the two memory springs 12... Both memory springs 12 are located below the second iron plate 10, and one end of each memory spring 12 is fixed to the second iron plate 10. The mounting groove 5 is equipped with a moving mechanism for moving the first iron plate 9 and the second iron plate 10. The side wall of the mounting groove 5 is equipped with a sealing plate 4, and both ends of the mounting base 2 are equipped with fixing mechanisms for fixing the sealing plate 4. During use, when the temperature of the first terminal 14 or the second terminal 15 rises, the surface temperature of the second iron plate 10 rises, which in turn causes the surface temperature of the two memory springs 12 to rise. When the temperature reaches a certain threshold, the two memory springs 12 can automatically return to their original state, causing the first terminal 14 and the second terminal 15 to separate, thereby achieving power outage protection and avoiding safety accidents caused by high temperature.

[0020] Furthermore, the moving mechanism includes two slide blocks 6, which are symmetrically fixed to the side wall of the mounting groove 5. Each slide block 6 has a slider 7 slidably connected to its top, and each slider 7 is fixed to one of the two slide rods 11. The other ends of two memory springs 12 are fixed to the two sliders 7 respectively. One end of each slider 7 has an L-shaped plate 8 fixed to its top, and one end of each L-shaped plate 8 is fixed to the sealing plate 4. The fixing mechanism includes a sleeve 13, which is inserted through one side wall of the mounting groove 5. A circular plate 17 is slidably connected to the inner side wall of the sleeve 13. One end of the circular plate 17 is fixed to a column 18, which passes through one end of the sleeve 13. The other end of the circular plate 17 is fixed to a connecting rod 20, which passes through the other end of the sleeve 13. A return spring 19 is installed inside the sleeve 13. Furthermore, the reset spring 19 is sleeved on the side wall of the connecting rod 20, and a round hole 16 is opened at one end of the sealing plate 4. The round hole 16 is compatible with the column 18. When the main body of the energy meter 1 is broken and multiple first terminals 14 and multiple second terminals 15 need to be inspected or repaired, the two connecting rods 20 are pulled, so that the two round plates 17 move along the inner side walls of the two sleeves 13 respectively, thereby driving the two columns 18 to disengage from the two round holes 16 respectively, releasing the fixed state of the sealing plate 4. Through the sealing plate 4 and the two L-shaped plates 8, the two slide blocks 6 and the two sliders 7 are driven to move relative to each other. When the two sliders 7 move, the two sliding rods 11 can move the first iron plate 9 and the second iron plate 10 as a whole to the outside of the mounting groove 5, eliminating the fixing method of bolts and nuts, saving time and improving work efficiency.

[0021] Furthermore, the outer walls at both ends of the mounting base 2 are provided with through grooves 3, and both through grooves 3 are connected to the mounting groove 5. The design of the two through grooves 3 facilitates wire threading.

[0022] Working Principle: During use, the two memory springs 12 are pre-set to their original state, meaning they are unloaded and undeformed. At room temperature, the two memory springs 12 are in a stretched state, causing the second iron plate 10 to be lifted. This means that multiple second terminals 15 are in contact with multiple first terminals 14, connecting the input cable group to the multiple second terminals 15 and the output cable group to the multiple first terminals 14. When the main body 1 of the energy meter is working, if the surface temperature of one or more first terminals 14 rises, heat will be transferred to one or more second terminals 15 through heat transfer, thus increasing the surface temperature of the second iron plate 10. Conversely, if the surface temperature of the second terminals 15 rises, the surface temperature of the second iron plate 10 will also directly increase. Since one end of each memory spring 12 is in contact with the second iron plate 10, as the surface temperature of the second iron plate 10 rises, the surface temperature of the two memory springs 12 will also gradually increase. When the surface temperature reaches 60 degrees Celsius, the two memory springs 12 will gradually return to their original shape. During this process, the second iron plate 10 is pulled downwards and gradually moves away from the first iron plate 9, thereby separating the multiple second terminals 15 from the multiple first terminals 14. This allows for power disconnection of the electricity meter body 1, preventing overheating and short circuits, thus improving the safety performance of the electricity meter body 1. When a circuit break occurs in the electricity meter body 1, it is necessary to disconnect the multiple first terminals 14 and the multiple second terminals 15. 5. When performing inspection or maintenance, pull the two connecting rods 20 to move the two circular plates 17 along the inner walls of the two sleeves 13, thereby causing the two columns 18 to disengage from the two circular holes 16, releasing the fixed state of the sealing plate 4. The sealing plate 4, in conjunction with the two L-shaped plates 8, causes the two sliding blocks 6 and the two sliders 7 to move relative to each other. When the two sliders 7 move, the two sliding rods 11 can move the first iron plate 9 and the second iron plate 10 as a whole to the outside of the mounting groove 5, eliminating the need for bolt and nut fixing, saving time and improving work efficiency.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric energy meter having a terminal temperature monitoring function, comprising an electric energy meter main body (1), characterized by, The main body (1) of the electricity meter is fixed with a mounting base (2) at the bottom. The mounting base (2) has a mounting groove (5) on its outer side wall. A first iron plate (9) is installed inside the mounting groove (5). A plurality of first terminals (14) are fixed linearly at the bottom of the first iron plate (9). A second iron plate (10) is installed inside the mounting groove (5) and is located below the plurality of first terminals (14). A plurality of second terminals (15) are fixed linearly at the top of the second iron plate (10). The plurality of second terminals (15) and the plurality of first terminals (14) correspond one-to-one. (9) Both ends of the bottom are fixed with sliding rods (11), and one end of each sliding rod (11) passes through the bottom of the second iron plate (10). The side walls of the two sliding rods (11) are fitted with memory springs (12), and the two memory springs (12) are located below the second iron plate (10). One end of each memory spring (12) is fixed to the second iron plate (10). The mounting groove (5) is provided with a moving mechanism for moving the first iron plate (9) and the second iron plate (10). The side wall of the mounting groove (5) is provided with a sealing plate (4). Both ends of the mounting base (2) are provided with a fixing mechanism for fixing the sealing plate (4).

2. An energy meter with terminal temperature monitoring function according to claim 1, characterized in that, The moving mechanism includes two slides (6), which are symmetrically fixed on the side wall of the mounting groove (5). The top of each slide (6) is slidably connected to a slider (7), and the two sliders (7) are fixed to the two slide rods (11) respectively. The other ends of the two memory springs (12) are fixed to the two sliders (7) respectively.

3. The electric energy meter with terminal temperature monitoring function according to claim 2, characterized in that, Both sliders (7) have an L-shaped plate (8) fixed at one end of their top, and one end of each L-shaped plate (8) is fixed to the sealing plate (4).

4. The electric energy meter having a terminal temperature monitoring function according to claim 1, characterized by, The fixing mechanism includes a sleeve (13), which is disposed through one side wall of the mounting groove (5). A circular plate (17) is slidably connected to the inner side wall of the sleeve (13). A column (18) is fixed to one end of the circular plate (17), and the column (18) passes through one end of the sleeve (13). A connecting rod (20) is fixed to the other end of the circular plate (17), and the connecting rod (20) passes through the other end of the sleeve (13). A return spring (19) is provided inside the sleeve (13), and the return spring (19) is sleeved on the side wall of the connecting rod (20).

5. An energy meter with terminal temperature monitoring function according to claim 4, characterized in that, The sealing plate (4) has a round hole (16) at one end, and the round hole (16) is compatible with the column (18).

6. The electric energy meter having a terminal temperature monitoring function according to claim 1, characterized by, The mounting base (2) has through grooves (3) on both sides of its outer sidewalls, and both through grooves (3) are connected to the mounting groove (5).

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