Waterproof metering box
By designing waterproof and heat dissipation components on the metering box, including a canopy, water shield, water baffle, and drainage channel, combined with a fan and control components, the problem of rainwater entering the outdoor metering box on rainy days is solved, achieving effective waterproofing and heat dissipation, and protecting the electronic instruments.
Patent Information
- Application Number
- CN202520117999.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-18
AI Technical Summary
In existing technologies, when it rains or windy weather, rainwater can easily enter through the ventilation holes of outdoor metering boxes, causing internal electronic instruments to become damp or get wet, resulting in damage to the electronic instruments. The problem is that existing technologies are not effective at waterproofing, and their waterproofing performance is generally poor, leading to dampness or water ingress and damage to the electronic instruments.
A waterproof metering box was designed, which uses a combination of waterproof and heat dissipation components, including a canopy, a water shield, a water baffle, and a drainage channel. Combined with a fan and control components, it can effectively block and discharge rainwater, preventing rainwater from entering the box.
It effectively prevents rainwater from entering the enclosure, protecting electronic instruments from moisture or water ingress, and ensuring the normal operation of electronic instruments.
Smart Images

Figure CN223797749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metering box technology, specifically to a waterproof metering box. Background Technology
[0002] A metering box is a collection of metering instruments and auxiliary equipment necessary for measuring electrical energy. It includes electricity meters, voltage and current transformers and their secondary circuits, electricity metering panels, cabinets, and boxes. It is a combination of transformers and measuring instruments used for accurate measurement of electrical energy.
[0003] Existing metering boxes typically have ventilation holes on the casing to dissipate heat from the internal components. Some metering boxes are installed outdoors, but existing boxes generally have limited waterproofing. During heavy rain or stormy weather, rainwater can easily enter the casing through these ventilation holes, causing moisture or water damage to the internal electronic components. Utility Model Content
[0004] The purpose of this invention is to provide a waterproof metering box to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof metering box, comprising a box body, characterized in that: the box body is provided with a waterproof component and a heat dissipation component, the box body has a plurality of heat dissipation grooves extending through the left and right sides, the waterproof component includes a canopy fixedly installed above the box body, a water-blocking cover fixedly installed on the left and right sides of the box body, and a water-blocking plate fixedly installed on the left and right sides inside the box body, the water-blocking cover and the water-blocking plate both overlap with the heat dissipation grooves, the water-blocking plate is inclined, the water-blocking plate has a plurality of drainage grooves on the side wall facing the heat dissipation grooves, and the bottom wall of the box body has drainage holes.
[0006] Preferably, the heat dissipation assembly includes fans fixedly installed on the left and right sides inside the housing, and the housing has a ventilation slot extending through the left and right sides below the heat dissipation slot. The position of the fans coincides with the position of the ventilation slot, and the position of the water baffle overlaps with the position of the ventilation slot.
[0007] Preferably, the heat dissipation assembly further includes a horizontal plate fixedly disposed between the housing and the water baffle, an electric cylinder fixedly disposed on the left and right sides inside the housing, a movable plate, side plates fixedly disposed on the front and rear sides of the movable plate, and a control component. The horizontal plate is located between the heat dissipation groove and the ventilation groove. The movable plate is fixedly connected to the piston rod of the electric cylinder. The housing has slots extending through the left and right sides located on the front and rear sides of the water baffle. The side plates are inserted into the slots and contact the housing and the water baffle. The fan and the electric cylinder are both connected to the control component.
[0008] Preferably, the control components include a controller and a temperature sensor fixedly installed inside the housing, and the fan, electric cylinder and temperature sensor are all connected to the controller via wires.
[0009] Preferably, a filter screen is fixedly installed on the side of the fan away from the water shield.
[0010] Preferably, the rear sidewall of the canopy is flush with the rear sidewall of the housing, and the waterproof component further includes a rotating plate rotatably disposed at the rear end of the canopy.
[0011] Preferably, the width of the baffle plate is greater than the width of the movable plate, and the electric cylinder is located below the fan.
[0012] The beneficial effects of this utility model are as follows: When the metering box is installed outdoors and it rains, because the canopy is fixedly set above the box body, rainwater falling on the canopy will slide down along the canopy, thus preventing rainwater from falling on the box body and thus preventing rainwater from entering the box body; when encountering windy and rainy weather, rain will fall at an angle due to the wind, and because the water-blocking cover is fixedly set on the left and right sides of the box body, the water-blocking cover overlaps with the heat dissipation groove, which can block most of the rainwater and prevent a large amount of rainwater from entering the box body through the heat dissipation groove; when the rain is too heavy, a small amount of rainwater may enter the box body through the heat dissipation groove, and because the water-blocking plate is fixedly set on the left and right sides inside the box body, the water-blocking plate overlaps with the heat dissipation groove. With overlapping locations, rainwater flows through the heat dissipation channels and falls onto the baffle plate. Since the baffle plate has several drainage channels on its side facing the heat dissipation channels, and drainage holes are located on the bottom wall of the box, rainwater enters the drainage channels and is discharged to the front and rear sides, then exits the box through the drainage holes, thus preventing rainwater from contacting the electronic instruments. In summary, this invention effectively prevents rainwater from entering the box and from contacting the electronic instruments, solving the problem that existing metering boxes have relatively poor waterproofing, and that rainwater easily enters the box through the heat dissipation holes during heavy rain or windy weather, causing moisture or water ingress into the internal electronic instruments and potentially damaging them. Attached Figure Description
[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Appendix Figure 2 This is a schematic diagram of the ventilation structure of this utility model;
[0015] Appendix Figure 3 This is a schematic diagram of the internal structure of the present invention;
[0016] Appendix Figure 4 This is a schematic diagram of the internal left side structure of this utility model.
[0017] In the diagram: 1. Housing; 2. Heat dissipation duct; 3. Top canopy; 4. Water shield; 5. Water baffle; 6. Drainage duct; 7. Drainage hole; 8. Fan; 9. Ventilation duct; 10. Horizontal plate; 11. Electric cylinder; 12. Movable plate; 13. Side plate; 14. Slot; 15. Controller; 16. Temperature sensor; 17. Filter screen; 18. Rotating plate. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] like Figure 1-4 As shown, this utility model discloses a waterproof metering box, including a box body 1. The box body 1 is provided with a waterproof component and a heat dissipation component. The box body 1 has a plurality of heat dissipation grooves 2 extending through the left and right sides. The waterproof component includes a canopy 3 fixedly installed on the top of the box body 1, a water-blocking cover 4 fixedly installed on the left and right sides of the box body 1, and a water-blocking plate 5 fixedly installed on the left and right sides inside the box body 1. The water-blocking cover 4 and the water-blocking plate 5 overlap with the heat dissipation grooves 2. The water-blocking plate 5 is inclined. A plurality of drainage grooves 6 are opened on the side wall of the water-blocking plate 5 facing the heat dissipation grooves 2. Drainage holes 7 are opened on the bottom wall of the box body 1. When the metering box is installed outdoors and it rains, the canopy 3 is fixed above the box body 1, and rainwater falling on the canopy 3 will slide down along it, thus preventing rainwater from falling onto the box body 1 and thus preventing rainwater from entering the box body 1. During windy and rainy weather, rain will fall at an angle due to the wind. Since the water-blocking covers 4 are fixed on the left and right sides of the box body 1, and their positions overlap with the heat dissipation grooves 2, the water-blocking covers 4 can block most of the rainwater, preventing a large amount of rainwater from entering the box body 1 through the heat dissipation grooves 2. When the rain is too heavy, a small amount of rainwater may enter the box body 1 through the heat dissipation grooves 2. Since the water-blocking plates 5 are fixed on the left and right sides inside the box body 1, and their positions overlap with the heat dissipation grooves 2... Rainwater, after passing through the heat dissipation groove 2, falls onto the baffle plate 5. Since the baffle plate 5 has several drainage grooves 6 on its side wall facing the heat dissipation groove 2, and drainage holes 7 are provided on the bottom wall of the box 1, rainwater enters the drainage grooves 6 and is discharged to the front and rear sides, then exits the box 1 through the drainage holes 7, thus preventing rainwater from contacting the electronic instruments. In summary, this utility model has the beneficial effects of preventing rainwater from entering the box 1 and preventing rainwater from contacting the electronic instruments. It solves the problem that existing metering boxes have relatively poor waterproofing, and in heavy rain or windy weather, rainwater easily enters the box 1 through the heat dissipation holes, causing the internal electronic instruments to become damp or waterlogged, leading to damage to the electronic instruments.
[0020] Preferably, the heat dissipation assembly includes fans 8 fixedly installed on the left and right sides inside the housing 1. The housing 1 has ventilation slots 9 extending through it on both sides, located below the heat dissipation slots 2. The fans 8 and ventilation slots 9 are aligned, and the water shield 4 overlaps with the ventilation slots 9. Because the fans 8 and ventilation slots 9 are aligned, and the water shield 4 overlaps with the ventilation slots 9, they effectively block rainwater and prevent rainwater from entering the fans 8.
[0021] Preferably, the heat dissipation assembly further includes a horizontal plate 10 fixedly disposed between the housing 1 and the water baffle 4, an electric cylinder 11 fixedly disposed on the left and right sides inside the housing 1, a movable plate 12, side plates 13 fixedly disposed on the front and rear sides of the movable plate 12, and a control assembly. The horizontal plate 10 is located between the heat dissipation groove 2 and the ventilation groove 9. The movable plate 12 is fixedly connected to the piston rod of the electric cylinder 11. The housing 1 has slots 14 located on the front and rear sides of the water baffle 4 through the left and right sides. The side plates 13 are inserted into the slots 14 and are in contact with the housing 1 and the water baffle 4. The fan 8 and the electric cylinder 11 are both connected to the control assembly. When the weather is hot and the internal temperature of the enclosure 1 becomes too high, the temperature sensor 16 detects this and transmits a signal to the controller 15. The controller 15 then controls the electric cylinder 11 to extend its piston rod. The piston rod of the electric cylinder 11 moves the movable plate 12 and the side plate 13 away from the water baffle 4. After the side plate 13 is fully inside the enclosure 1, the fan 8 is activated. The fan 8 rotates to accelerate the air circulation inside the enclosure 1, thus achieving rapid heat dissipation. When the temperature drops due to rain, the controller 15 receives a signal from the temperature sensor 16, turns off the fan 8, and controls the electric cylinder 11 to retract its piston rod. The piston rod of the electric cylinder 11 moves the movable plate 12 and the side plate 13 closer to the water baffle 4. After the side plate 13 extends out of the slot 14, it is positioned on both sides of the water baffle 4 and contacts the water baffle 4 and the horizontal plate 10, thus sealing the ventilation slot 9 and preventing rainwater from entering the ventilation slot 9.
[0022] Preferably, the control assembly includes a controller 15 and a temperature sensor 16 fixedly installed inside the housing 1. The fan 8, electric cylinder 11, and temperature sensor 16 are all connected to the controller 15 via wires. Since the fan 8, electric cylinder 11, and temperature sensor 16 are all connected to the controller 15 via wires, it facilitates the control of the opening and closing of each component. (The functions to be implemented by each piece of hardware in this invention are supported by a large number of mature technologies. The essence of this invention lies in the fact that, for specific application scenarios, the above connection and control methods are all existing technologies and do not involve modifications to the internal software of the hardware.)
[0023] Preferably, a filter screen 17 is fixedly installed on the side of the fan 8 away from the water baffle 4. Because the filter screen 17 is fixedly installed on the side of the fan 8 away from the water baffle 4, it serves to filter dust.
[0024] Preferably, the rear sidewall of the canopy 3 is flush with the rear sidewall of the housing 1, and the waterproof component further includes a rotating plate 18 rotatably disposed at the rear end of the canopy 3. Since the rear sidewall of the canopy 3 is flush with the rear sidewall of the housing 1, it facilitates the installation of the housing 1 against a wall. Because the rotating plate 18 is rotatably disposed at the rear end of the canopy 3, when the housing 1 is not installed against a wall, rotating the plate 18 outwards can facilitate the protection from rainwater.
[0025] Preferably, the width of the baffle plate 5 is greater than the width of the movable plate 12, and the electric cylinder 11 is located below the fan 8. Because the width of the baffle plate 5 is greater than the width of the movable plate 12, and the electric cylinder 11 is located below the fan 8, it serves to prevent water discharged from the baffle plate 5 from falling into the fan 8 and the electric cylinder 11.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water-proof metering box comprising a box body (1), characterized in that: The box (1) is provided with a waterproof assembly and a heat dissipation assembly, the box (1) is provided with a plurality of heat dissipation grooves (2) penetrating through left and right sides, the waterproof assembly comprises a top cover (3) fixedly arranged above the box (1), a water baffle cover (4) fixedly arranged on the left and right sides of the box (1), and a water baffle plate (5) fixedly arranged on the left and right sides in the box (1), the water baffle cover (4) and the water baffle plate (5) are positionally overlapped with the heat dissipation grooves (2), the water baffle plate (5) is arranged in an inclined manner, a plurality of drainage grooves (6) are formed in one side wall of the water baffle plate (5) facing the heat dissipation grooves (2), and a drainage hole (7) is formed in the bottom wall of the box (1).
2. A water meter according to claim 1, wherein: The heat dissipation assembly comprises a fan (8) fixedly arranged on the left and right sides in the box (1), the box (1) is provided with a ventilation groove (9) below the heat dissipation grooves (2) and penetrating through the left and right sides, the fan (8) is positionally coincided with the ventilation groove (9), and the water baffle cover (4) is positionally overlapped with the ventilation groove (9).
3. A water meter according to claim 2, wherein: The heat dissipation assembly further comprises a horizontal plate (10) fixedly arranged between the box (1) and the water baffle cover (4), an electric cylinder (11) fixedly arranged on the left and right sides in the box (1), a movable plate (12), side plates (13) fixedly arranged on the front and rear sides of the movable plate (12), and a control assembly, the horizontal plate (10) is located between the heat dissipation grooves (2) and the ventilation groove (9), the movable plate (12) is fixedly connected with a piston rod of the electric cylinder (11), the box (1) is provided with a slot (14) penetrating through the left and right sides and located on the front and rear sides of the water baffle cover (4), the side plates (13) are inserted into the slot (14) and are in contact connection with the box (1) and the water baffle cover (4), and the fan (8) and the electric cylinder (11) are connected with the control assembly.
4. A water meter according to claim 3, wherein: The control assembly comprises a controller (15) and a temperature sensor (16) fixedly arranged in the box (1), and the fan (8), the electric cylinder (11) and the temperature sensor (16) are connected with the controller (15) through wires.
5. A water meter according to claim 2, wherein: The fan (8) is fixedly provided with a filter screen (17) away from one side of the water baffle cover (4).
6. A water meter according to claim 1, wherein: The rear side wall of the top cover (3) is flush with the rear side wall of the box (1), and the waterproof assembly further comprises a rotating plate (18) rotatably arranged at the rear end of the top cover (3).
7. A water meter according to claim 3, wherein: The width of the water baffle plate (5) is greater than the width of the movable plate (12), and the electric cylinder (11) is located below the fan (8).