Electric energy meter case with good heat dissipation performance

Abstract

The utility model relates to the technical field of electric energy meter cases with good heat dissipation performance, in particular to an electric energy meter case with good heat dissipation performance, which comprises a meter case main body, a front cover and a rear cover are respectively mounted on the meter case main body, and a heat dissipation structure comprises a driving motor fixedly mounted on the inner side of the meter case main body. A driving motor is arranged on the meter shell body, a lead screw connected with the meter shell body is installed at the output end of the driving motor, a plurality of transmission blocks are arranged on the lead screw, a plurality of heat dissipation fans are fixedly installed on the transmission blocks, and a plurality of heat dissipation holes are formed in one side of the meter shell body. Therefore, although the meter case main body adopts a closed metal or plastic structure, the heat dissipation performance of the meter case main body is not affected, and the structure has the advantages of avoiding performance reduction, service life shortening and even thermal runaway risk of electronic components caused by a high-temperature environment in the meter case main body. And meanwhile, the key factor restricting the reliability and stability of the electric energy meter is avoided.

Description

Technical Field

[0001] The utility model relates to an electricity meter case with good heat dissipation performance, in particular to an electricity meter case with good heat dissipation performance, belonging to the technical field of electricity meter cases with good heat dissipation performance. Background Art

[0002] The electricity meter case is the external protection structure of the electricity meter, which is used to accommodate and fix the internal circuit, components and core metering modules of the electricity meter (such as current transformers, voltage sampling circuits, metering chips, etc.). With the rapid development of smart grids and distributed energy, as the core device for power metering, the function integration degree of the electricity meter is constantly improving, and the power consumption density of internal electronic components (such as metering chips, communication modules, power management units, etc.) has increased significantly.

[0003] Traditional electricity meter cases mostly adopt closed metal or plastic structures, relying only on natural convection for heat dissipation, which is difficult to meet the heat dissipation requirements of high-power density devices. High-temperature environments can lead to a decline in the performance and shortened lifespan of electronic components, and even pose a risk of thermal runaway, becoming a key factor restricting the reliability and stability of electricity meters.

[0004] Therefore, it is urgent to improve an electricity meter case with good heat dissipation performance to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electricity meter case with good heat dissipation performance. Through the setting of the heat dissipation structure, the traditional heat dissipation method relying only on natural convection of the case main body itself is changed. Therefore, even though the case main body adopts a closed metal or plastic structure, its heat dissipation performance will not be affected. The advantage of this structure is to avoid the decline in the performance and shortened lifespan of electronic components caused by the high-temperature environment inside the case main body, and even the risk of thermal runaway, and at the same time, it will not become a key factor restricting the reliability and stability of the electricity meter.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] An electricity meter case with good heat dissipation performance includes a case main body, a front cover and a rear cover are respectively installed on the case main body, a heat dissipation structure is arranged on the case main body, the heat dissipation structure includes a driving motor fixedly installed on the inner side of the case main body, a lead screw connected to the case main body is installed at the output end of the driving motor, a plurality of transmission blocks are arranged on the lead screw, a plurality of heat dissipation fans are fixedly installed on the transmission blocks, and a plurality of heat dissipation holes are opened on one side of the case main body.

[0008] Preferably, a connecting rod is fixedly installed on the inner side of the case main body, and a plurality of collar rings connected to the transmission blocks are sleeved on the connecting rod.

[0009] Preferably, a plurality of air inlet holes are formed in the other side of the watch case body, and a dust-proof cover is arranged inside the air inlet holes.

[0010] Preferably, a first magnetic ring is fixedly installed inside the dust-proof cover, and a second magnetic ring magnetically connected to the first magnetic ring is fixedly installed on the watch case body.

[0011] Preferably, a T-shaped groove is formed in the bottom of the watch case body, a T-shaped plate is installed inside the T-shaped groove, a plurality of fixing blocks are fixedly installed on the watch case body, first threaded holes are formed in both the fixing blocks and the T-shaped plate, and a first bolt connecting the fixing blocks is installed on the T-shaped plate.

[0012] Preferably, second threaded holes are formed in both the watch case body and the front cover, and a second bolt connecting the front cover to the watch case body is installed on the front cover.

[0013] Preferably, a display screen is arranged on the top of the back cover, and a plurality of buttons connected to the back cover are installed on one side of the display screen.

[0014] The utility model at least has the following beneficial effects:

[0015] Through the setting of the heat dissipation structure, the traditional heat dissipation method relying only on the natural convection of the watch case body itself is changed. Therefore, even though the watch case body is made of a closed metal or plastic structure, its heat dissipation performance will not be affected. The advantage of this structure is that it avoids the decline in the performance and shortening of the service life of electronic components caused by the high-temperature environment inside the watch case body, and even the risk of thermal runaway. At the same time, it will not become a key factor restricting the reliability and stability of the electric energy meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a schematic diagram of the button structure of the utility model;

[0019] Figure 3 is a schematic diagram of the lead screw structure of the utility model;

[0020] Figure 4 is a schematic diagram of the T-shaped plate structure of the utility model;

[0021] Figure 5 is of the utility model Figure 3 enlarged view at A in;

[0022] Figure 6 For the present utility model Figure 4 Enlarged view of part B in

[0023] Figure 7 For the present utility model Figure 2 Enlarged view of part C in

[0024] In the figure, 1 is the main body of the meter case; 2 is the front cover; 3 is the rear cover; 4 is the heat dissipation structure; 5 is the drive motor; 6 is the lead screw; 7 is the transmission block; 8 is the cooling fan; 9 is the heat dissipation hole; 10 is the connecting rod; 11 is the collar; 12 is the air inlet hole; 13 is the dust-proof cover; 14 is the first magnetic ring; 15 is the second magnetic ring; 16 is the T-shaped groove; 17 is the T-shaped plate; 18 is the fixing block; 19 is the first threaded hole; 20 is the first bolt; 21 is the second threaded hole; 22 is the second bolt; 23 is the display screen; 24 is the button. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1-7 shown, an embodiment of an electric energy meter case with good heat dissipation provided in this embodiment.

[0027] An electricity meter case with good heat dissipation performance includes a case main body 1, a front cover 2 and a rear cover 3 are respectively installed on the case main body 1, and a heat dissipation structure 4 is arranged on the case main body 1. The heat dissipation structure 4 includes a driving motor 5 fixedly installed inside the case main body 1. The output end of the driving motor 5 is installed with a lead screw 6 connected to the case main body 1. A plurality of transmission blocks 7 are arranged on the lead screw 6, and a plurality of heat dissipation fans 8 are fixedly installed on the transmission blocks 7. A plurality of heat dissipation holes 9 are opened on one side of the case main body 1. Through the setting of the heat dissipation structure 4, the traditional natural convection heat dissipation method relying only on the case main body 1 itself is changed. Therefore, although the case main body 1 is made of a closed metal or plastic structure, its heat dissipation performance will not be affected. When the internal temperature of the case main body 1 rises due to the operation of the internal electronic components, first start the driving motor 5 to drive the lead screw 6 to rotate. Since the lead screw 6 is a mechanical component that converts rotational motion into linear motion, when the lead screw 6 rotates, it can drive the transmission blocks 7 to move closer to or away from each other. Therefore, the heat dissipation fans 8 can move back and forth inside the case main body 1 driven by the transmission blocks 7. At the same time as the driving motor 5 operates, a plurality of heat dissipation fans 8 also start to operate, so that the heat dissipation fans 8 can cool the internal electronic components of the case main body 1. At the same time, a plurality of heat dissipation holes 9 can dissipate the heat generated by the operation of the driving motor 5, thus preventing the heat generated by the driving motor 5 from making the internal temperature of the case main body 1 higher. After the cooling is completed, stop the operation of the driving motor 5 and a plurality of heat dissipation fans 8. The advantage of this structure is to avoid the decline in the performance and shortening of the lifespan of the electronic components caused by the high-temperature environment inside the case main body 1, and even the risk of thermal runaway, and at the same time, it will not become a key factor restricting the reliability and stability of the electricity meter.

[0028] As Figure 3 shown, a connecting rod 10 is fixedly installed inside the case main body 1, and a plurality of collar rings 11 connected to the transmission blocks 7 are sleeved on the connecting rod 10. Through the setting of the connecting rod 10 and the collar rings 11, during the process of the plurality of transmission blocks 7 moving closer to or away from each other, the collar rings 11 on the top of the transmission blocks 7 will be sleeved on the connecting rod 10 for movement, so as to ensure the stability of the transmission blocks 7 during the movement and avoid the situation of shaking of the heat dissipation fans 8 during operation.

[0029] As Figure 5 shown, a plurality of air inlet holes 12 are opened on the other side of the case main body 1, and a dust-proof cover 13 is arranged inside the air inlet holes 12. Through the setting of the air inlet holes 12 and the dust-proof cover 13, the outside air can enter the inside of the case main body 1 through the air inlet holes 12, and can form air convection with the plurality of heat dissipation holes 9 opened on the case main body 1, thus avoiding the increase in the internal humidity of the case main body 1 caused by the long-term non-circulation of the air inside, which may corrode the electronic components, and the dust-proof cover 13 inside the case main body 1 can prevent dust from entering the inside of the case main body 1 through the air inlet holes 12.

[0030] As shown Figure 5 in FIG. 1, a first magnetic ring 14 is fixedly installed on the inner side of the dust cover 13, and a second magnetic ring 15 magnetically connected to the first magnetic ring 14 is fixedly installed on the watch case body 1. Through the arrangement of the first magnetic ring 14 and the second magnetic ring 15, after the two attract each other, the dust cover 13 can be fixed on the inner side of the watch case body 1 to prevent it from falling off. Due to the characteristics of the first magnetic ring 14 and the second magnetic ring 15, the dust cover 13 can be opened without using tools to pull it, so as to facilitate personnel to disassemble and replace it when the dust cover 13 is damaged.

[0031] As shown Figure 6 in FIG. 2, a T-shaped groove 16 is opened at the bottom of the watch case body 1, a T-shaped plate 17 is installed inside the T-shaped groove 16, a plurality of fixing blocks 18 are fixedly installed on the watch case body 1, first threaded holes 19 are opened on both the fixing blocks 18 and the T-shaped plate 17, and a first bolt 20 connected to the fixing blocks 18 is installed on the T-shaped plate 17. Through the arrangement of the T-shaped groove 16, the T-shaped plate 17, the fixing blocks 18, the first threaded holes 19 and the first bolt 20, after the T-shaped plate 17 is inserted into the T-shaped groove 16, after the plurality of first threaded holes 19 on the T-shaped plate 17 are aligned with the first threaded holes 19 on the fixing blocks 18, the first bolt 20 is tightened into the first threaded holes 19 to fix the T-shaped plate 17 on the fixing blocks 18, and the T-shaped plate 17 can hang the whole watch case body 1 at a suitable position on the wall.

[0032] As shown Figure 7 in FIG. 3, second threaded holes 21 are opened on both the watch case body 1 and the front cover 2, and a second bolt 22 connected to the watch case body 1 is installed on the front cover 2. Through the arrangement of the second threaded holes 21 and the second bolt 22, the front cover 2 can be fixed on the watch case body 1 by a plurality of second bolts 22 to prevent it from falling off. After the second bolts 22 are detached from the second threaded holes 21, the front cover 2 can be opened, so as to facilitate personnel to repair the electronic components below the front cover 2.

[0033] As shown Figure 1 and Figure 2 in FIG. 4, a display screen 23 is arranged on the top of the rear cover 3, and a plurality of buttons 24 connected to the rear cover 3 are installed on one side of the display screen 23. Through the arrangement of the display screen 23 and the buttons 24, the display screen 23 can display the power consumption data in real time, and can also display the current state and alarm information. The buttons 24 are input devices for users to interact with the electric energy meter, and function switching and data query are realized through combined operations.

[0034] In this embodiment, as shown Figures 1-7 in FIG. 5, the working process of a kind of electric energy meter case with good heat dissipation provided by this embodiment is as follows:

[0035] When the internal temperature of the watch case body 1 rises due to the operation of the electronic components inside, the drive motor 5 is first started to run to drive the lead screw 6 to rotate. Since the lead screw 6 is a mechanical component that converts rotational motion into linear motion, when the lead screw 6 rotates, it can drive the transmission blocks 7 to move closer to or away from each other. Therefore, the radiator fan 8 can be driven by the transmission blocks 7 to move back and forth inside the watch case body 1. At the same time as the drive motor 5 runs, multiple radiator fans 8 also start to run, so that the radiator fans 8 can cool the electronic components inside the watch case body 1. At the same time, multiple heat dissipation holes 9 can dissipate the heat generated by the operation of the drive motor 5, thus preventing the heat generated by the drive motor 5 from making the internal temperature of the watch case body 1 even higher. After the cooling is completed, the operation of the drive motor 5 and multiple radiator fans 8 can be stopped. The advantage of this structure is to prevent the high-temperature environment inside the watch case body 1 from causing the performance of the electronic components to decline, the service life to be shortened, and even the risk of thermal runaway, and at the same time, it will not become a key factor restricting the reliability and stability of the electric energy meter.

[0036] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An electric energy meter case with good heat dissipation, comprising a case body (1), a front cover (2) and a rear cover (3) being mounted on the case body (1), characterized in that: The case body (1) is provided with a heat dissipation structure (4), the heat dissipation structure (4) comprising a drive motor (5) fixedly mounted on the inner side of the case body (1), a screw rod (6) connected to the case body (1) being mounted on the output end of the drive motor (5), a plurality of transmission blocks (7) being arranged on the screw rod (6), a plurality of heat dissipation fans (8) being fixedly mounted on the transmission blocks (7), and a plurality of heat dissipation holes (9) being opened on one side of the case body (1).

2. The electric energy meter case with good heat dissipation according to claim 1, characterized in that: A connecting rod (10) is fixedly mounted on the inner side of the watch case body (1), and a plurality of collars (11) connected to the transmission block (7) are sleeved on the connecting rod (10).

3. The electric energy meter case with good heat dissipation according to claim 1, characterized in that: A plurality of air inlet holes (12) are provided on the other side of the watch case body (1), and a dust cover (13) is provided inside the air inlet holes (12).

4. The electric energy meter case with good heat dissipation according to claim 3, characterized in that: A first magnetic ring (14) is fixedly mounted on the inner side of the dust cover (13), and a second magnetic ring (15) magnetically connected to the first magnetic ring (14) is fixedly mounted on the watch case body (1).

5. The electric energy meter case with good heat dissipation according to claim 1, characterized in that: A T-shaped slot (16) is provided at the bottom of the watch case body (1), a T-shaped plate (17) is installed inside the T-shaped slot (16), a plurality of fixing blocks (18) are fixedly installed on the watch case body (1), a first threaded hole (19) is provided on the fixing block (18) and the T-shaped plate (17), and a first bolt (20) connected to the fixing block (18) is installed on the T-shaped plate (17).

6. The electric energy meter case with good heat dissipation according to claim 1, characterized in that: The case body (1) and the front cover (2) are both provided with a second threaded hole (21), and the front cover (2) is provided with a second bolt (22) connected to the case body (1).

7. The electric energy meter case with good heat dissipation according to claim 1, characterized in that: A display screen (23) is arranged on the top of the rear cover (3), and a plurality of buttons (24) connected to the rear cover (3) are mounted on one side of the display screen (23).

Images