CN115377849A

CN115377849A - Outdoor heat dissipation JP cabinet of using

Info

Publication number: CN115377849A
Application number: CN202211078528.1A
Authority: CN
Inventors: 宋萍; 李卫; 俞睿阳; 赵祖冀; 王冠森
Original assignee: Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-11-22

Abstract

The invention relates to the technical field of electrical engineering equipment, in particular to an outdoor heat dissipation JP cabinet, which comprises a cabinet body provided with a cabinet door, wherein air inlet holes are formed in two sides of the cabinet body, the sum of the areas of the air inlet holes on the same side surface accounts for more than four fifths of the area of the corresponding side surface, two sides of the cabinet body are respectively hinged with a side plate, and the side plates can be overturned under the guidance of a driving part to cover all the air inlet holes in the corresponding side surface; the top of the cabinet body is provided with an exhaust hole, a ceiling used for keeping off rain is arranged above the exhaust hole, the exhaust hole is positioned in the shielding range of the ceiling, and an exhaust gap is formed between the ceiling and the exhaust hole; the invention can increase the air flow flux in the cabinet body, so that the temperature in the cabinet body is controlled within a safe temperature range, and rainwater can be effectively prevented from entering the cabinet body while the temperature is reduced.

Description

Outdoor heat dissipation JP cabinet

Technical Field

The invention relates to the technical field of electrical engineering equipment, in particular to an outdoor heat dissipation JP cabinet.

Background

JP cabinets refer to compensated power distribution cabinets for low voltage power distribution systems, generally installed below transformers. The JP cabinet is designed for meeting the requirements of standardization, miniaturization and outdoor type of rural low-voltage distribution equipment, and integrates distribution, metering, protection (overload, short circuit, electric leakage and snow prevention) and capacitance reactive compensation. A large number of electrical elements are installed inside the JP cabinet, and along with the action of current, the electrical elements can generate heat in the working process; during peak periods of electricity usage, simultaneous operation of numerous electrical components can cause the temperature inside the cabinet to rise rapidly, thereby increasing the risk of overheating and fire in the cabinet. When the cabinet is in a power consumption peak period, the working power of each electrical appliance element is reduced, and the temperature in the cabinet body is lower at the moment, so that the electrical elements are not interfered.

In order to reduce the temperature inside the cabinet body, heat dissipation windows are generally arranged on two sides of the JP cabinet, so that an airflow loop is formed inside the cabinet body, and heat generated inside the cabinet body is taken away through the flowing of air. However, the heat dissipation windows arranged on the two sides of the cabinet body are small, so that the air flow is small, and the temperature in the cabinet body in the peak power utilization period cannot be quickly reduced to a safe range. Some JP have offered great heat dissipation window on the cupboard, can carry out quick heat dissipation, but when the power consumption is normal, can't reduce the window, can lead to some rubbish to get into cabinet internal portion easily like this, and then destroy inside electrical component.

In view of the above technical problems, there is a need for a heat dissipating JP cabinet that can overcome the above technical problems.

Disclosure of Invention

In order to avoid and overcome the technical problems in the prior art, the invention provides an outdoor heat dissipation JP cabinet, which can control the air flow flux inside the cabinet body by changing the size of an air inlet hole so as to control the temperature inside the cabinet body within a proper temperature range.

In order to achieve the purpose, the invention provides the following technical scheme:

a heat dissipation JP cabinet for outdoor use comprises a cabinet body provided with a cabinet door, wherein air inlet holes are formed in two sides of the cabinet body, the sum of the areas of the air inlet holes in the same side face accounts for more than four fifths of the area of the corresponding side face, side plates are hinged to two sides of the cabinet body respectively, and the side plates can be overturned under the guidance of a driving part to cover all the air inlet holes in the corresponding side face;

the top of the cabinet body is provided with an exhaust hole, a ceiling used for keeping off rain is arranged above the exhaust hole, the exhaust hole is positioned in the shielding range of the ceiling, and an exhaust gap is formed between the ceiling and the exhaust hole.

As a further scheme of the invention: the upper end and the lower end of the side surface of the cabinet body are respectively provided with a support lug in an outward extending mode, the side plate is hinged to the cabinet body through the support lugs, the hinge axes are arranged vertically, and the two hinge axes are arranged on the same diagonal line of the cabinet body;

the driving part comprises a driving motor arranged at the bottom of the cabinet body, and the driving wheel is coaxially arranged on an output shaft of the driving motor; the bottom ends of the two hinged shafts vertically extend downwards to pass through the support lugs and are fixedly connected with the driven wheel coaxially, and the driving wheel and the two driven wheels are in transmission fit with each other through a transmission belt.

As a still further scheme of the invention: the air inlet hole is of a horn-shaped hole structure with the hole diameter gradually shrinking from outside to inside, and the hole axis of the air inlet hole is inclined upwards gradually from outside to inside.

As a still further scheme of the invention: the ceiling is of a V-shaped structure buckled at the top of the cabinet body, and the ceiling is fixedly connected and matched with the top of the cabinet body through a support column extending vertically.

As a still further scheme of the invention: the cabinet body is hinged with two cabinet doors, and then a split double-door structure is formed.

As a still further scheme of the invention: more than two supporting plates for mounting electric elements are sequentially arranged in the cabinet body from top to bottom, and air guide holes for guiding airflow to flow from bottom to top are arranged on the supporting plates.

As a still further scheme of the invention: shutters for guiding air circulation are arranged on the two doors and the two side plates.

As a still further scheme of the invention: the bottom of the cabinet body is formed with an installation cavity, and the driving part is arranged in the installation cavity.

Compared with the prior art, the invention has the beneficial effects that:

1. the air inlets with larger total area ratio are arranged on the two sides of the cabinet body, so that the air inflow in the cabinet body is increased, and the falling rate of the temperature in the cabinet body is increased. The curb plate can rotate under the effect of drive division to control opening and shutting of inlet port, and then open the inlet port and dispel the heat when cabinet internal portion temperature is higher, and close the inlet port and avoid the rainwater to get into cabinet internal portion when the external rainfall is great. The exhaust hole arranged at the top of the cabinet body can form an airflow loop with the air inlet hole, so that the heat dissipation efficiency inside the cabinet body is improved. The design of ceiling can avoid the rainwater to get into the exhaust hole to ensure that cabinet body inside can not invade the rainwater when the heat dissipation.

2. The two side plates are arranged on two sides of the cabinet body, and the hinge shafts are positioned on the same diagonal line of the cabinet body, so that the two side plates can be synchronously opened or closed along the same clockwise direction under the action of the driving motor, and the directions of the notches of the V-shaped grooves formed between the two side plates and the corresponding side surfaces are opposite, so that wind in different directions can be sucked. When wind exists in the front or the back of the cabinet body, the wind can enter the cabinet body from the side plate opposite to the wind direction of the notch and then is discharged from the air inlet hole on the other side and/or the exhaust hole on the top, so that the wind in multiple directions can enter the cabinet body, and the heat dissipation efficiency of the cabinet body is improved.

3. The trumpet-shaped air inlet used by the invention can compress air, improve the heat absorption efficiency of the air and accelerate the cooling speed in the cabinet body. And the inlet port that the tilt up set up has certain waterproof function, and when the rainfall is less, the rainwater can flow down along the side of the cabinet body, can not get into the internal portion of cabinet. The curb plate is closed when the rainfall is great, can avoid the rainwater to get into the cabinet on the one hand internal, and on the other hand also can avoid too much moisture to get into the cabinet internal, ensures the stable work of the internal electric elements of cabinet.

4. The invention uses the supporting plate with the air guide hole, so that the heat in the cabinet body can pass through the air guide hole to rise to the top of the cabinet body and be exhausted from the air exhaust hole. The air guide hole reduces the interference to the air flow in the cabinet body, improves the heat exchange rate in the cabinet body and further accelerates the cooling efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention.

Fig. 4 is a schematic view of the expanded structure of the present invention.

Fig. 5 is a schematic bottom-view axial-side structure of the present invention.

Fig. 6 is a schematic view of the driving portion structure of the present invention.

In the figure:

10. a cabinet body; 11. a cabinet door; 12. a support pillar; 13. a ceiling;

14. a support plate; 141. An air vent; 15. An air inlet;

16. a side plate; 17. A louver; 18. An exhaust hole;

20. a drive section; 21. a drive motor; 22. a driving wheel; 23. a driven wheel; 24. a transmission belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention is a JP cabinet structure with a waterproof ceiling 13; two doors 11 are hinged to the rectangular cabinet 10, so that the cabinet 10 forms a double-door structure. A plurality of exhaust holes 18 with the same aperture are uniformly formed at the top of the cabinet 10, so that the heat inside the cabinet 10 is easier to be exhausted to the outside. Four supporting columns 12 which vertically extend upwards are uniformly arranged at the top of the cabinet body 10, a V-shaped ceiling 13 is buckled on the supporting columns 12 and fixedly connected and matched with the top end of the cabinet body 10 through the supporting columns 12. The covering range of the ceiling 13 is large, and the whole cabinet 10 can be covered from top to bottom, so that rainwater is prevented from entering the cabinet 10 through the exhaust holes 18.

As shown in fig. 4 and 5, a plurality of air inlet holes 15 having the same shape are uniformly formed on two side surfaces of the cabinet 10, and the air inlet holes 15 have a bell-mouthed structure with gradually shrinking apertures from outside to inside, so that the temperature of air entering the cabinet 10 is reduced by the compression of the air, and the heat absorption efficiency of the air is improved. The hole axes of the air inlet holes 15 are inclined upwards gradually from outside to inside, so that rainwater cannot enter the cabinet body 10 from the air inlet holes 15 when the rainfall is small.

The upper and lower ends of the two side surfaces of the cabinet 10 are respectively provided with an outwardly extending support lug which is of a rectangular plate-shaped structure, and the plate length of the support lug extends along the width direction of the cabinet 10. Hinge holes are formed in the support lugs, and the side plates 16 are hinged to the cabinet body 10 through hinge shafts with axes extending vertically and matched with hole shafts of the hinge holes. The two sides of the cabinet 10 are hinged with side plates 16, and the two hinged shafts are located on the same diagonal line of the cabinet 10.

As shown in fig. 6, a mounting cavity is disposed at the bottom of the cabinet 10, and a driving part 20 is mounted in the mounting cavity. The driving part 20 comprises a driving motor 21 arranged at the bottom of the cabinet 10, and a driving wheel 22 is coaxially arranged on an output shaft of the driving motor 21; the bottom ends of the two hinge shafts vertically extend downwards through the support lugs and are coaxially fixedly connected with a driven wheel 23, and the driving wheel 22 and the two driven wheels 23 are in transmission fit with each other through a transmission belt 24.

When in use, the cabinet can be directly placed on the ground or on a certain platform, which is mainly determined according to the actual situation. When the cabinet is installed, all the electrical components are completely assembled and powered on. A temperature sensor is arranged in the cabinet body 10, when the temperature in the cabinet body is high, under the action of the temperature sensor, the driving motor 21 rotates to drive the side plates 16 on the two sides to rotate, so that outside air enters the cabinet body 10. A raindrop sensor is arranged at the top of the ceiling 13, and when the rainfall is large, the side plate 16 is closed under the control of the raindrop sensor, so that rainwater is prevented from entering the cabinet body 10; and the raindrop sensor is prioritized over the temperature sensor.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The outdoor heat dissipation JP cabinet is characterized by comprising a cabinet body (10) provided with a cabinet door (11), wherein air inlets (15) are formed in two sides of the cabinet body (10), the sum of the areas of the air inlets (15) on the same side surface accounts for more than four fifths of the area of the corresponding side surface, side plates (16) are hinged to two sides of the cabinet body (10) respectively, and the side plates (16) can be overturned under the guide of a driving part (20) to cover all the air inlets (15) on the corresponding side surface;

the top of the cabinet body (10) is provided with an exhaust hole (18), a ceiling (13) used for keeping off rain is arranged above the exhaust hole (18), the exhaust hole (18) is located in a shielding range of the ceiling (13), and an exhaust gap is formed between the ceiling (13) and the exhaust hole (18).

2. An outdoor heat dissipation JP cabinet as claimed in claim 1, wherein the upper and lower ends of the side surface of the cabinet body (10) are respectively provided with a support lug in an outward extending manner, the side plate (16) is hinged on the support lug through a hinge shaft, the hinge shafts are vertically arranged, and the two hinge shafts are arranged on the same diagonal line of the cabinet body (10);

the driving part (20) comprises a driving motor (21) arranged at the bottom of the cabinet body (10), and a driving wheel (22) is coaxially arranged on an output shaft of the driving motor (21); the bottom ends of the two hinge shafts vertically extend downwards to extend through the support lugs and are fixedly connected with the driven wheel (23) coaxially, and the driving wheel (22) and the two driven wheels (23) are in transmission fit with each other through a transmission belt (24).

3. An outdoor heat dissipation JP cabinet according to claim 1 or 2, wherein the air inlet (15) has a bell-mouth structure with a gradually shrinking aperture from outside to inside, and an axis of the air inlet (15) is inclined upward from outside to inside.

4. The outdoor heat dissipation JP cabinet according to claim 3, wherein the ceiling (13) is a V-shaped structure buckled at the top of the cabinet body (10), and the ceiling (13) is fixedly connected with the top of the cabinet body (10) through a support column (12) extending vertically.

5. An outdoor heat dissipation JP cabinet according to claim 3, characterized in that the cabinet body (10) is hinged with two cabinet doors (11) to form a split double door structure.

6. An outdoor heat-dissipating JP cabinet according to claim 5, characterized in that two or more support plates (14) for mounting electrical components are arranged in the cabinet body (10) from top to bottom, and air vents (141) for guiding air flow from bottom to top are arranged in the support plates (14).

7. An outdoor heat-dissipating JP cabinet according to claim 4 characterized in that the two cabinet doors (11) and the two side panels (16) are provided with louvers (17) for guiding the air circulation.

8. An outdoor heat-dissipating JP cabinet according to claim 5, characterized in that the bottom of the cabinet body (10) is formed with a mounting cavity, and the driving part (20) is arranged in the mounting cavity.

9. An outdoor heat-dissipating JP cabinet according to claim 2, characterized in that a temperature sensor and a raindrop sensor are connected to the drive motor (21), and the raindrop sensor has a priority over the temperature sensor.