Electric energy meter case with ventilation and dust prevention functions

Abstract

The utility model relates to the technical field of electric energy meter shells, in particular to an electric energy meter shell with ventilation and dust prevention functions, which comprises an electric energy meter lower shell, an electric energy meter upper shell arranged at the top of the electric energy meter lower shell, a connecting plug fixedly arranged on one side of the electric energy meter lower shell, and a ventilation and dust prevention mechanism arranged on the electric energy meter lower shell. The ventilation dustproof mechanism comprises a plurality of fixing frames which are symmetrically and fixedly installed on the inner wall of the lower shell of the electric energy meter, a cooling fan is arranged between every two adjacent fixing frames, and a plurality of ventilation openings are formed in the two sides of the lower shell of the electric energy meter. According to the utility model, through the arrangement of the ventilation dustproof mechanism, the electric energy meter lower housing has ventilation and heat dissipation functions, heat generated by electronic components in the electric energy meter lower housing and the electric energy meter upper housing can be timely discharged and dissipated, and the heat is prevented from being continuously accumulated and heated in the electric energy meter lower housing and the electric energy meter upper housing. After heat is discharged, damage to electronic components can be effectively avoided, and normal use is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to an electric energy meter shell with ventilation and dust prevention functions, belonging to the technical field of electric energy meter shells. Background Technique

[0002] An electric energy meter, also known as a watt-hour meter, a fire meter, or a kilowatt-hour meter, is an instrument used to measure electric energy. It can record the electric energy generated by a generator or consumed by a load within a certain period of time. The electric energy meter plays a crucial role in the processes of electric power production, transmission, distribution, and use, and is the basis for the settlement of electric energy transactions between market players in the electric power market, power companies, and users.

[0003] Currently, the commonly used electric energy meter shell is usually of a fully enclosed structure, and no ventilation and dust prevention structure is provided on the electric energy meter shell. The fully enclosed shell structure makes it difficult for the heat generated during the operation of the electric energy meter to be discharged outward for heat dissipation, resulting in the continuous accumulation and rise of heat inside the shell, which will damage the electronic components inside the electric energy meter and affect the normal use of the electric energy meter.

[0004] Therefore, there is an urgent need to improve an electric energy meter shell with ventilation and dust prevention functions to solve the above existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric energy meter shell with ventilation and dust prevention functions. Through the setting of the ventilation and dust prevention mechanism, the lower shell of the electric energy meter has the function of ventilation and heat dissipation, and can timely discharge the heat generated by the electronic components in the lower shell and the upper shell of the electric energy meter outward for heat dissipation, avoiding the continuous accumulation and rise of heat in the lower shell and the upper shell of the electric energy meter. After the heat is discharged, it can effectively avoid damaging the electronic components and prevent affecting the normal use.

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

[0007] An electric energy meter shell with ventilation and dust prevention functions, including a lower shell of the electric energy meter. The top of the lower shell of the electric energy meter is provided with an upper shell of the electric energy meter. One side of the lower shell of the electric energy meter is fixedly installed with a plug connector. A ventilation and dust prevention mechanism is arranged on the lower shell of the electric energy meter. The ventilation and dust prevention mechanism includes a plurality of fixed frames symmetrically and fixedly installed on the inner wall of the lower shell of the electric energy meter. A heat dissipation fan is arranged between two adjacent fixed frames. A plurality of ventilation openings are opened on both sides of the lower shell of the electric energy meter, and a filter screen is fixedly installed inside the ventilation openings.

[0008] Preferably, a fixed block is fixedly installed on the fixed frame. A spring is fixedly installed inside the fixed block. One end of the spring is fixedly installed with a clamping rod. Support rods slidably connected to the fixed frame are fixedly installed on both sides of the heat dissipation fan. A clamping groove is opened on one side of the support rod.

[0009] Preferably, the diameter of the clamping rod matches the inner diameter of the clamping groove, and one end of the clamping rod is trapezoidal.

[0010] Preferably, a plurality of positioning cylinders are fixedly installed inside the lower housing of the electricity meter, a plurality of positioning rods are fixedly installed inside the upper housing of the electricity meter, and one end of the positioning rod is conical.

[0011] Preferably, a sealing groove is formed on the lower housing of the electricity meter, and a sealing rubber strip is fixedly installed on the upper housing of the electricity meter.

[0012] Preferably, a plurality of rubber cylinders are arranged on the plug connector, and the rubber cylinders and the plug connector are in threaded connection.

[0013] Preferably, a groove is formed at the bottom of the lower housing of the electricity meter, a fixing plate is movably installed inside the groove, and a clamping block which is in clamping connection with the fixing plate is fixedly installed on the groove.

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

[0015] Through the arrangement of the ventilation and dust-proof mechanism, the lower housing of the electricity meter has the function of ventilation and heat dissipation, and can timely discharge the heat generated by the electronic components in the lower housing of the electricity meter and the upper housing of the electricity meter to the outside for heat dissipation, avoiding the continuous accumulation and temperature rise of heat in the lower housing of the electricity meter and the upper housing of the electricity meter. After discharging the heat, it can effectively avoid damaging the electronic components. At the same time, the setting of the filter screen can prevent the outside dust from entering the inside of the lower housing of the electricity meter and prevent the dust and impurities from polluting the electronic components and affecting the normal use. Description of the Drawings

[0016] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the illustrative embodiments and descriptions thereof are used to explain the present application and do not constitute an improper limitation to 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 bottom view of the overall structure of the utility model;

[0019] Figure 3 is a schematic diagram of the plug connector structure of the utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the lower housing of the electricity meter of the utility model;

[0021] Figure 5 is a schematic diagram of the internal structure of the upper housing of the electricity meter of the utility model;

[0022] Figure 6 Schematic expanded view of the groove and fixed plate structure of the present utility model;

[0023] Figure 7 Partial structural cross-sectional view of the fixing block of the present utility model.

[0024] In the figure, 1. Lower housing of the electricity meter; 2. Upper housing of the electricity meter; 3. Plug connector; 4. Ventilation and dust-proof mechanism; 5. Fixed frame; 6. Heat dissipation fan; 7. Ventilation opening; 8. Filter screen; 9. Fixed block; 10. Spring; 11. Clamping rod; 12. Support rod; 13. Card slot; 14. Positioning cylinder; 15. Positioning rod; 16. Sealing groove; 17. Sealing rubber strip; 18. Rubber cylinder; 19. Groove; 20. Fixed plate; 21. Clamping block. Specific implementation manners

[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 making creative efforts shall fall within the protection scope of the present utility model.

[0026] As Figures 1-7 shown, an embodiment of an electricity meter case with ventilation and dust-proof functions provided in this embodiment.

[0027] An electric energy meter case with ventilation and dust prevention functions includes an electric energy meter lower case 1. The top of the electric energy meter lower case 1 is equipped with an electric energy meter upper case 2. One side of the electric energy meter lower case 1 is fixedly installed with a plug connector 3. A ventilation and dust prevention mechanism 4 is arranged on the electric energy meter lower case 1. The ventilation and dust prevention mechanism 4 includes a plurality of fixed frames 5 symmetrically and fixedly installed on the inner wall of the electric energy meter lower case 1. A heat dissipation fan 6 is arranged between two adjacent fixed frames 5. A plurality of ventilation openings 7 are opened on both sides of the electric energy meter lower case 1. A filter screen 8 is fixedly installed inside the ventilation opening 7. Through the setting of the ventilation and dust prevention mechanism 4, the electric energy meter lower case 1 has the function of ventilation and heat dissipation, and can timely discharge the heat generated by the electronic components in the electric energy meter lower case 1 and the electric energy meter upper case 2 to the outside for heat dissipation. When the electronic components in the electric energy meter lower case 1 and the electric energy meter upper case 2 generate heat during use, two heat dissipation fans 6 on the inner wall of the electric energy meter lower case 1 are started. One heat dissipation fan 6 introduces air from the outside into the electric energy meter lower case 1 through the ventilation opening 7, while the other heat dissipation fan 6 draws the original heat in the electric energy meter lower case 1 out through the ventilation opening 7, so as to ventilate and dissipate heat inside the electric energy meter lower case 1 and the electric energy meter upper case 2 to avoid continuous accumulation and temperature rise of heat in the electric energy meter lower case 1 and the electric energy meter upper case 2. After the heat is discharged, it can effectively avoid damage to the electronic components. At the same time, the setting of the filter screen 8 can prevent external dust from entering the inside of the electric energy meter lower case 1 and prevent dust and impurities from polluting the electronic components and affecting normal use.

[0028] In this embodiment, as Figure 1As shown in the figure, a fixed block 9 is fixedly installed on the fixed frame 5. A spring 10 is fixedly installed inside the fixed block 9. One end of the spring 10 is fixedly installed with a clamping rod 11. Support rods 12 that are slidably connected to the fixed frame 5 are fixedly installed on both sides of the radiator fan 6. A clamping groove 13 is formed on one side of the support rod 12. The diameter of the clamping rod 11 is matched with the inner diameter of the clamping groove 13, and one end of the clamping rod 11 is trapezoidal. A plurality of positioning cylinders 14 are fixedly installed inside the lower housing 1 of the electricity meter, and a plurality of positioning rods 15 are fixedly installed inside the upper housing 2 of the electricity meter. One end of the positioning rod 15 is conical. Through the settings of the fixed block 9, the spring 10, the clamping rod 11, the support rod 12, and the clamping groove 13, the radiator fan 6 is installed and supported between the two fixed frames 5 by the engagement of the clamping rod 11 and the clamping groove 13. Since the support rod 12 is slidably connected to the fixed frame 5, and the clamping rod 11 and the clamping groove 13 are movably engaged, and because one end of the clamping rod 11 is a trapezoidal structure, and its top and bottom are both inclined, this enables the radiator fan 6 to be conveniently disassembled and assembled between the two fixed frames 5. That is, when disassembling, directly pull the radiator fan 6 upward so that the support rod 12 squeezes the clamping rod 11 to make it contract from the fixed block 9 and then disengage from the clamping groove 13 to complete the disassembly. When installing, insert the radiator fan 6 between the two fixed frames 5 and press it downward. Similarly, the support rod 12 squeezes the clamping rod 11 to first contract. Then, when the clamping groove 13 and the clamping rod 11 are in the same position, the clamping rod 11 will reset and extend under the action of the spring 10 to engage with the clamping groove 13, thereby completing the disassembly and assembly of the radiator fan 6, which is convenient for maintenance and replacement when the radiator fan 6 fails. At the same time, after setting the diameter of the clamping rod 11 to be matched with the inner diameter of the clamping groove 13, the connection between the clamping rod 11 and the clamping groove 13 is made closer, making the radiator fan 6 more firmly installed between the two fixed frames 5. Through the settings of the positioning cylinder 14 and the positioning rod 15, it can play a role in positioning when the lower housing 1 and the upper housing 2 of the electricity meter are installed and combined. Relying on the insertion and positioning of the positioning cylinder 14 and the positioning rod 15, the lower housing 1 and the upper housing 2 of the electricity meter are spliced together more precisely, avoiding skew and misalignment.

[0029] In this embodiment, as Figure 1As shown, a sealing groove 16 is formed on the lower housing 1 of the electricity meter, a sealing rubber strip 17 is fixedly installed on the upper housing 2 of the electricity meter, a plurality of rubber cylinders 18 are arranged on the plug connector 3, and a threaded connection is provided between the rubber cylinder 18 and the plug connector 3. A groove 19 is formed at the bottom of the lower housing 1 of the electricity meter, a fixing plate 20 is movably installed inside the groove 19, and a latch 21 that is snap-fitted with the fixing plate 20 is fixedly installed on the groove 19. Through the arrangement of the sealing groove 16 and the sealing rubber strip 17, a sealing effect can be achieved. When the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter are combined together, at this time, the sealing rubber strip 17 is inserted into the sealing groove 16, and the connected sealing groove 16 and sealing rubber strip 17 can seal the connection between the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter, preventing dust and moisture from entering the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter through the gap, and preventing the internal electronic components from being affected. Through the arrangement of the rubber cylinder 18, the circuit wire can be firmly supported after being inserted into the plug connector 3, avoiding loosening at the connection between the circuit wire and the plug connector 3, effectively preventing the circuit wire from falling off the plug connector 3. At the same time, the rubber cylinder 18 is installed on the plug connector 3 by means of threaded connection, so that the rubber cylinder 18 can be disassembled from the plug connector 3, facilitating replacement when the rubber cylinder 18 is worn. Through the arrangement of the groove 19, the fixing plate 20 and the latch 21, it is convenient to integrally install the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter in the meter box. The lower housing 1 of the electricity meter can be hung in the meter box through the fixing plate 20, and the fixing plate 20 is supported in the groove 19 by being snap-fitted with the latch 21. Since the number of latches 21 is two, the height can be adjusted by snap-fitting the fixing plate 20 with the latches 21 at different positions, facilitating adaptation to the installation in the meter box.

[0030] In this embodiment, as Figures 1-7 shown, the working process of an electricity meter housing with ventilation and dust-proof functions provided in this embodiment is as follows:

[0031] When heat is generated by the electronic components in the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter during use, two cooling fans 6 on the inner wall of the lower housing 1 of the electricity meter are started. One cooling fan 6 introduces air from the outside into the lower housing 1 of the electricity meter through the ventilation opening 7, while the other cooling fan 6 draws the original heat in the lower housing 1 of the electricity meter outwards through the ventilation opening 7, thereby ventilating and dissipating heat inside the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter to avoid continuous accumulation and temperature rise of heat in the lower housing 1 of the electricity meter and the upper housing 2 of the electricity meter. After the heat is discharged, it can effectively prevent damage to the electronic components. At the same time, the setting of the filter screen 8 can prevent external dust from entering the interior of the lower housing 1 of the electricity meter.

[0032] The above description shows and describes several preferred embodiments of the present utility model. However, as mentioned before, it should be understood that the present utility model 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 concept of the present utility model herein through the above teachings or the techniques or knowledge in related fields. And any changes and variations made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. An electric energy meter case with ventilation and dustproof functions, comprising an electric energy meter lower case (1), an electric energy meter upper case (2) being mounted on the top of the electric energy meter lower case (1), and a plug connector (3) being fixedly mounted on one side of the electric energy meter lower case (1), characterized in that: The lower shell (1) of the electric energy meter is provided with a ventilation and dust prevention mechanism (4), the ventilation and dust prevention mechanism (4) comprising a plurality of fixed frames (5) symmetrically fixedly mounted on the inner wall of the lower shell (1) of the electric energy meter, a heat dissipation fan (6) being arranged between two adjacent fixed frames (5), a plurality of ventilation openings (7) being provided on both sides of the lower shell (1), and a filter screen (8) being fixedly mounted inside the ventilation opening (7).

2. The electric energy meter case with ventilation and dustproof function according to claim 1, characterized in that: A fixing block (9) is fixedly mounted on the fixing frame (5), a spring (10) is fixedly mounted inside the fixing block (9), a clamping rod (11) is fixedly mounted on one end of the spring (10), and support rods (12) slidably connected to the fixing frame (5) are fixedly mounted on both sides of the heat dissipation fan (6), and a clamping groove (13) is provided on one side of the support rod (12).

3. The electric energy meter case with ventilation and dustproof function according to claim 2, characterized in that: The diameter of the clamping rod (11) matches the inner diameter of the clamping slot (13), and one end of the clamping rod (11) is arranged in a trapezoidal shape.

4. The electric energy meter case with ventilation and dustproof function according to claim 1, characterized in that: A plurality of positioning cylinders (14) are fixedly mounted inside the lower housing (1) of the electric energy meter, and a plurality of positioning rods (15) are fixedly mounted inside the upper housing (2) of the electric energy meter, with one end of the positioning rod (15) being configured in a conical shape.

5. The electric energy meter case with ventilation and dustproof function according to claim 1, characterized in that: A sealing groove (16) is provided on the lower housing (1) of the electric energy meter, and a sealing rubber strip (17) is fixedly mounted on the upper housing (2) of the electric energy meter.

6. The electric energy meter case with ventilation and dustproof function according to claim 1, characterized in that: A plurality of rubber tubes (18) are provided on the plug connector (3), and a threaded connection is provided between the rubber tubes (18) and the plug connector (3).

7. The electric energy meter case with ventilation and dustproof function according to claim 1, characterized in that: A groove (19) is provided at the bottom of the lower housing (1) of the electric energy meter, a fixing plate (20) is movably mounted inside the groove (19), and a clamping block (21) is fixedly mounted on the groove (19) and is engaged with the fixing plate (20).

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