Electric energy metering box with protection function

Abstract

The utility model discloses an electric energy metering box with a protection function, which comprises a box body, a heat dissipation device is arranged at the top of the box body, a rain baffle is arranged above the heat dissipation device, and the rain baffle is provided with a plurality of heat dissipation fans and is located at the air inlet of the heat dissipation device. The box body is provided with a plurality of wire passing holes, and the wire passing holes are provided with sealing devices. According to the utility model, the sealing devices play a role in sealing wires, and the sealing devices between the box door and the box body and between the heat dissipation device and the box body enable a sealed structure to be formed in the box body, so that water and water vapor are prevented from entering the box body through the wire passing hole and a gap between the box body and the box door, and heat is prevented from being accumulated in the box body. And the temperature in the box body is controlled through the heat dissipation device and the heat dissipation fan, so that the product has the advantages of protection function, good sealing performance, high safety and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of meter boxes, in particular to an electric energy meter box with a protective function. Background Art

[0002] The electricity meter box is a combination of metering instruments and auxiliary equipment necessary for measuring electric energy, including electric energy meters, voltage and current transformers for measurement and their secondary circuits, electric energy metering panels, cabinets, boxes, etc. The meter box can be installed in a suspended or floor-standing manner.

[0003] According to the authorization announcement number CN220156024U "An electric energy meter box with water level protection function", an electric energy meter box with water level protection function is disclosed, including a mounting platform, the bottom end of the mounting platform is fixed in the riverbed, and a photovoltaic panel is installed on the top surface of the mounting platform, a socket plate is vertically fixed on the top surface of the mounting platform, and also includes a bearing, the bearing includes a buoy, the buoy is arranged on the water surface, and a plug rod is vertically fixed on one end surface of the buoy close to the mounting platform, and the plug rod is vertically slid and plugged into the socket plate, and an electric energy meter box is vertically installed on the top surface of the buoy. The utility model overcomes the problem that the electric energy meter box in the existing water photovoltaic power generation equipment is directly fixed on the floating platform, there are many electronic components in the electric energy meter box, and waterproofing is required, the height of the mounting platform for setting up the photovoltaic power generation panel is fixed, and when the water level rises in the later period, water is easily intruded into the electric energy meter box, thereby causing water intrusion and damage to the internal electronic components, resulting in the inability of the water photovoltaic power generation equipment to generate electricity and transmit normally, and there are safety hazards.

[0004] However, the above design has the following defects: since the electric energy meter box is on the water surface for a long time, water vapor will enter the box through the wire holes and heat dissipation holes of the electric energy meter box, making the electric energy meter box in a humid environment for a long time, and the moisture will cause the outer shell of the electrical equipment to be charged, resulting in leakage or short circuit. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below is produced under this background. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings of the above technical solutions and provide a product with protective function, good sealing and high safety.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] An electric energy meter box with a protective function comprises a box body, a heat dissipation device is provided on the top of the box body, a rain shield is provided above the heat dissipation device, the rain shield is provided with a plurality of cooling fans and is located at the air inlet of the heat dissipation device, the box body is provided with a plurality of wire holes, and the wire holes are provided with sealing devices.

[0008] Preferably, a partition is provided in the box body to form a first concave cavity and a second concave cavity, and a clearance hole is provided on the top of the first concave cavity and the second concave cavity, and a first sealing groove is provided on the side wall of the clearance hole.

[0009] Preferably, the first cavity and the second cavity are provided with a second sealing groove, the entrance of the second sealing groove is provided with a chamfer, the entrance of the first cavity and the second cavity is provided with a box door, the outer wall of the box door is provided with a second sealing strip and embedded in the second sealing groove, so that a sealing structure is formed at the connection between the box door and the first cavity and the second cavity.

[0010] Preferably, the heat dissipation device includes a heat-conducting block and a first sealing strip. The heat-conducting block is inserted into the give-way through hole. The heat-conducting block is provided with an extension plate, which is perpendicular to the heat-conducting block. The heat-conducting block is provided with a first mounting plate, which abuts against the top of the box body and is connected and fixed to the box body by screws. The top of the heat-conducting block is provided with a plurality of heat-dissipating fins with equal spacing. The first sealing strip is fixed to the outer wall of the heat-conducting block and embedded in the first sealing groove, so that a sealing structure is formed at the connection between the heat-conducting block and the give-way through hole.

[0011] Preferably, the sealing device includes a connecting head, a clamping joint, a gasket, and a bushing. The connecting head is provided with a second mounting plate and is fixed to the wire hole by screws. A first radial portion is provided at the outlet inside the connecting head. The bushing is provided with a second radial portion and abuts against the first radial portion. The gasket abuts against the bushing. The bushing is provided with at least one through hole, and an O-ring is provided on the inner wall of the through hole.

[0012] Preferably, the compression fitting is threadedly connected to the connector and abuts against the gasket, and when downward pressure is applied to the gasket, the perforation shrinks inwardly.

[0013] Preferably, the heat dissipation fan is arranged at the air inlet of the heat dissipation fins.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model seals the wires through the sealing device, and the sealing structures between the box door and the first cavity, the second cavity, and between the heat dissipation device and the box body form a sealed structure in the box body to prevent water and water vapor from entering the box body through the wire holes and the gaps between the box door and the box body. In order to prevent heat from accumulating in the box body, the electrical equipment is installed and fixed on the extension plate, the heat is transferred to the heat conductive block through heat conduction, the heat dissipation fins exchange heat with the air, and the heat dissipation fan increases the air flow speed between the heat dissipation fins, thereby effectively controlling the temperature rise in the box body. The above design ensures that the electrical equipment in the box body is in a suitable working environment, overcomes the defects of the technical solution, and makes the product have the advantages of protection function, good sealing, high safety, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an electric energy metering box with a protective function according to the utility model;

[0018] Figure 2 This is a schematic diagram of the side section structure of an electric energy metering box with a protective function of the utility model Figure 1 ;

[0019] Figure 3 For this utility model Figure 2 A partial structure enlarged view of detail A of an electric energy meter box with a protective function;

[0020] Figure 4 This is a schematic diagram of the side section structure of an electric energy metering box with a protective function of the utility model Figure 2 ;

[0021] Figure 5 For this utility model Figure 4 A partial structure enlarged diagram of detail B of an electric energy meter box with a protective function;

[0022] Figure 6 It is an exploded view of a sealing device with multiple perforations of an electric energy metering box with a protective function according to the utility model;

[0023] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0024] Reference numerals: 1, box body; 2, heat dissipation device; 3, rain shield; 4, cooling fan; 5, wire hole; 6, sealing device; 7, box door; 8, chamfer;

[0025] 11. partition; 12. first concave cavity; 13. second concave cavity; 14. clearance hole; 15. first sealing groove; 16. second sealing groove;

[0026] 21. heat conducting block; 22. first sealing strip; 23. first mounting plate; 24. heat dissipation fins; 25. extension plate;

[0027] 61. Connector; 62. Compression joint; 63. Gasket; 64. Bushing; 65. O-ring;

[0028] 611, second mounting plate; 612, first radial portion;

[0029] 641, second radial portion; 642, perforation;

[0030] 71. Second sealing strip. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] Reference example Figures 1 to 6 , an electric energy metering box with a protective function, comprising a box body 1, a heat sink 2 is arranged on the top of the box body 1, a rain shield 3 is arranged above the heat sink 2, a plurality of heat sink fans 4 are arranged on the rain shield 3, and the rain shield 3 is located at the air inlet of the heat sink 2, a plurality of wire holes 5 are arranged on the box body 1, and a sealing device 6 is arranged on the wire hole 5, and the rain shield 3 prevents rainwater from dripping into the heat sink fan 4 and the heat sink 2 when it rains, resulting in damage to the heat sink 4, rapid oxidation of the heat sink block, accelerated aging of the first sealing strip 22, and other situations that reduce the service life;

[0034] It is worth mentioning that a partition 11 is provided in the box body 1 to form a first concave cavity 12 and a second concave cavity 13. A clearance through hole 14 is provided at the top of the first concave cavity 12 and the second concave cavity 13. A first sealing groove 15 is provided on the side wall of the clearance through hole 14. The partition 11 divides the space in the box body 1 into the first concave cavity 12 and the second concave cavity 13. Customers can install corresponding electrical equipment in different concave cavities according to actual conditions. The clearance through hole 14 cooperates with the heat conductive block 21 to enter, and the first sealing groove 15 cooperates with the first sealing strip 22 to be used;

[0035] It is worth mentioning that the first cavity 12 and the second cavity 13 are provided with a second sealing groove 16, and a chamfer 8 is provided at the entrance of the second sealing groove 16. A box door 7 is provided at the entrance of the first cavity 12 and the second cavity 13. A second sealing strip 71 is provided on the outer wall of the box door 7 and is embedded in the second sealing groove 16, so that a sealing structure is formed at the connection between the box door 7 and the first cavity 12 and the second cavity 13. The second sealing groove 16 is used in conjunction with the second sealing strip 71. The chamfer 8 facilitates the opening and closing of the box door 7, and prevents the second sealing strip 71 from being excessively squeezed, resulting in deformation problems. The second sealing strip 71 is embedded in the second sealing groove 16 to form a tortuous curve, blocking the medium from passing through the second sealing groove 16, thereby preventing water and water vapor from entering the box body 1.

[0036] It is worth mentioning that the heat dissipation device 2 includes a heat conductive block 21 and a first sealing strip 22. The heat conductive block 21 is inserted into the clearance hole 14. The heat conductive block 21 is provided with an extension plate 25, which is in a vertical relationship with the heat conductive block 21. The heat conductive block 21 is provided with a first mounting plate 23, which abuts against the top of the box body 1 and is connected and fixed to the box body 1 by screws. The top of the heat conductive block 21 is provided with a plurality of heat dissipation fins 24 with equal spacing. The first sealing strip 22 is fixed to the outer wall of the heat conductive block 21 and embedded in the first sealing groove 15, so that the connection between the heat conductive block 21 and the clearance hole 14 forms a seal. Structure, the material of the heat conducting block 21 and the extension plate 25 can be aluminum, the electrical equipment is installed on the extension plate 25, the heat generated by the electrical equipment is thermally transferred to the extension plate 25, the heat conducting block 21, and the heat dissipation fins 24, the heat dissipation fins 24 and the air perform heat exchange, thereby reducing and controlling the temperature of the heat conducting block 21 and the extension plate 25, the first mounting plate 23 is connected and fixed to the box body 1, the first sealing strip 22 is embedded in the first sealing groove 15 to form a tortuous bend, the medium is blocked from passing through the first sealing groove 15, thereby preventing water and water vapor from entering the box body 1;

[0037] It is worth mentioning that the sealing device 6 includes a connector 61, a compression joint 62, a gasket 63, and a bushing 64. The connector 61 is provided with a second mounting plate 611 and is connected and fixed to the wire hole 5 by screws. A first radial portion 612 is provided at the outlet of the connector 61. The bushing 64 is provided with a second radial portion 641 and abuts against the first radial portion 612. The gasket 63 abuts against the bushing 64. The bushing 64 is provided with at least one through hole 642. An O-ring 65 is provided on the inner wall of the through hole 642. The second mounting plate 611 facilitates the connection or disassembly of the connector 61 and the box body 1. The gasket 63 increases the contact area with the compression joint 62. The through hole 642 facilitates the wire to pass through the wire hole 5 and enter the box body 1.

[0038] It is worth mentioning that the compression joint 62 is threadedly connected to the connector 61 and abuts against the gasket 63. When downward pressure is applied to the gasket 63, the perforation shrinks inward. As the compression joint 62 is gradually tightened with the connector 61, the downward pressure applied to the gasket 63 is gradually increased, and the second radial portion 641 moves on the first radial portion 612. Since the first radial portion 612 is wide at the top and narrow at the bottom, the perforation is compressed by the first radial portion 612 and squeezed inward, thereby clamping and binding the wire. The O-ring 65 improves the sealing performance between the wire and the perforation 642. Since there is a single wire or multiple wires in one wire, the bushing 64 with different numbers of perforations 642 and different diameters of perforations 642 can be replaced according to installation requirements to ensure that a single wire corresponds to one perforation 642.

[0039] It is worth mentioning that the cooling fan 4 is arranged at the air inlet of the cooling fins 24 , and the cooling fan 4 increases the air flow speed of the cooling fins 24 , thereby effectively controlling the temperature rise in the box body 1 .

[0040] The above design scheme can enable the product to achieve the advantages of having protective function, good sealing and high safety.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An electric energy metering box with a protective function, comprising a box body (1), characterized in that: A heat dissipation device (2) is provided on the top of the box body (1), a rain shield (3) is provided above the heat dissipation device (2), the rain shield (3) is provided with a plurality of heat dissipation fans (4) and is located at the air inlet of the heat dissipation device (2), the box body (1) is provided with a plurality of wire holes (5), and the wire holes (5) are provided with sealing devices (6).

2. The electric energy meter box with protection function according to claim 1 is characterized in that: A partition (11) is provided inside the box body (1) to form a first concave cavity (12) and a second concave cavity (13); a clearance hole (14) is provided at the top of the first concave cavity (12) and the second concave cavity (13); and a first sealing groove (15) is provided on the side wall of the clearance hole (14).

3. The electric energy meter box with protection function according to claim 2 is characterized in that: The first cavity (12) and the second cavity (13) are provided with a second sealing groove (16), and a chamfer (8) is provided at the entrance of the second sealing groove (16). A box door (7) is provided at the entrance of the first cavity (12) and the second cavity (13), and a second sealing strip (71) is provided on the outer wall of the box door (7) and is embedded in the second sealing groove (16), so that a sealing structure is formed at the connection between the box door (7) and the first cavity (12) and the second cavity (13).

4. The electric energy meter box with protection function according to claim 3 is characterized in that: The heat dissipation device (2) comprises a heat conducting block (21) and a first sealing strip (22); the heat conducting block (21) is inserted into the clearance hole (14); the heat conducting block (21) is provided with an extension plate (25) which is in a vertical relationship with the heat conducting block (21); the heat conducting block (21) is provided with a first mounting plate (23) which abuts against the top of the box body (1) and is connected and fixed to the box body (1) by screws; the top of the heat conducting block (21) is provided with a plurality of heat dissipation fins (24) with equal spacing; the first sealing strip (22) is fixed to the outer wall of the heat conducting block (21) and embedded in the first sealing groove (15), so that a sealing structure is formed at the connection between the heat conducting block (21) and the clearance hole (14).

5. The electric energy meter box with protection function according to claim 1 is characterized in that: The sealing device (6) comprises a connecting head (61), a clamping joint (62), a gasket (63), and a bushing (64); the connecting head (61) is provided with a second mounting plate (611) and is connected and fixed to the wire hole (5) by screws; a first radial portion (612) is provided at the outlet inside the connecting head (61); the bushing (64) is provided with a second radial portion (641) and abuts against the first radial portion (612); the gasket (63) abuts against the bushing (64); the bushing (64) is provided with at least one through hole (642); and an O-ring (65) is provided on the inner wall of the through hole (642).

6. The electric energy meter box with protection function according to claim 5, characterized in that: The compression joint (62) is threadedly connected to the connector (61) and abuts against the gasket (63). When downward pressure is applied to the gasket (63), the through hole (642) contracts inwardly.

7. The electric energy meter box with protection function according to claim 4 is characterized in that: The heat dissipation fan (4) is arranged at the air inlet of the heat dissipation fins (24).

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