High-low voltage power distribution cabinet equipped with automatic window opening and closing structure

Abstract

The utility model provides a high and low voltage power distribution cabinet equipped with an automatic window opening and closing structure, which comprises a power distribution cabinet main body, an equipment cavity, a lifting plate and a double-end motor, and a temperature sensor and a controller linearly connected with the temperature sensor and the double-end motor are arranged at the top of the equipment cavity. Compared with the prior art, the power distribution cabinet has the following beneficial effects that the temperature sensor plays a role in detecting the internal temperature of the power distribution cabinet main body and is matched with the controller and the double-head motor to control the opening and closing states of the inner air port, and the double-head motor can drive the lifting plate to move up and down through the screw rod nut; when the lifting plate moves to a position above the baffle plate, air outside the power distribution cabinet main body can sequentially penetrate into the outer air port, the U-shaped groove I and the U-shaped groove II and then flow into the equipment cavity through the inner air port, so that the internal temperature of the electric appliance cabinet is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of distribution cabinets, and particularly relates to a high and low voltage distribution cabinet equipped with an automatic window opening and closing structure. Background Technique

[0002] High and low voltage distribution cabinets are electrical equipment used in the power system to receive, distribute, and control electric energy. According to different voltage levels, distribution cabinets can be divided into high voltage distribution cabinets and low voltage distribution cabinets. At present, the market of high and low voltage distribution cabinets has developed relatively maturely, and the market competition is fierce. Foreign manufacturers have basically achieved full technical coverage. In the design of high and low voltage distribution cabinets, heat dissipation is an important consideration factor because electronic components generate heat during operation. If the heat dissipation is poor, it may lead to equipment failures. The conventional design is to design reasonable ventilation holes on the surface of the distribution cabinet to allow air to circulate and take away the heat generated by internal components, or to adopt forced ventilation means (such as fan-assisted heat dissipation). However, most existing distribution cabinets cannot intelligently identify internal temperature changes. For example, in environments such as strong winds or rainy days, the internal temperature of the electrical cabinet may be at room temperature, and at this time, the ventilation holes can only remain open for a long time, which is likely to promote the entry of dust and rain. With the requirements of modern power systems, distribution cabinets need to gradually develop towards intelligence. Therefore, a new structure is needed to solve the above problems. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a high and low voltage distribution cabinet equipped with an automatic window opening and closing structure to solve the problems raised in the above background technique.

[0004] The utility model is realized through the following technical solutions: A high and low voltage distribution cabinet equipped with an automatic window opening and closing structure, including: a distribution cabinet main body, a lifting plate, and a double-headed motor. A device cavity is formed by the front surface of the distribution cabinet main body recessing backward. A double-headed motor is installed at the bottom of the device cavity. A temperature sensor and a controller linearly connected to the temperature sensor and the double-headed motor are provided at the top of the device cavity. A plurality of outer air vents are formed by the lower sides of the left and right surfaces of the device cavity corresponding to penetrating the left and right surfaces of the distribution cabinet main body;

[0005] A baffle is welded to the bottom of the left surface of the device cavity. A lifting plate is attached to the upper part of the left surface of the device cavity. A plurality of inner air vents are formed by the lifting plate penetrating the left and right surfaces. The middle of the top of the right surface of the lifting plate is connected to a rotating rod through a screw nut. The bottom of the rotating rod is engaged with a first bevel gear through a second bevel gear. One end of the first bevel gear is connected to a rotating rod, and the other end of the rotating rod is connected to the double-headed motor.

[0006] As a preferred implementation manner, the baffle is welded to the bottom of the left surface of the device cavity, and a downwardly concave U-shaped groove one is formed by the top of the baffle being connected to its left surface;

[0007] The vertical length of the lifting plate is greater than the vertical length of the baffle. The bottom of the lifting plate extends into the first U-shaped groove, and the outer surface of the lifting plate is in contact with the inner wall of the first U-shaped groove. The bottom of the lifting plate is connected to its left surface to form an upwardly concave second U-shaped groove. The first U-shaped groove and the bottom of the lifting plate are both inclined surfaces that are lower on the left and higher on the right. The formation of the first U-shaped groove and the second U-shaped groove facilitates the external air flow of the main body of the power distribution cabinet to enter the inner air inlet through the baffle and the inside of the lifting plate.

[0008] As a preferred embodiment, the baffle is symmetrically fixed in two groups on the left and right sides of the inner wall of the equipment cavity, and two lifting plates are symmetrically inserted into the two groups of baffles.

[0009] As a preferred embodiment, the rotating rods are symmetrically erected in two groups on the left and right sides inside the equipment cavity. At the bottom of the two rotating rods, bevel gears II are horizontally connected. On the side of the two bevel gears II facing the double-headed motor, bevel gears I are engaged respectively. The two bevel gears I are connected to the two ends of the double-headed motor through a set of rotating rods respectively;

[0010] The two rotating rods are connected to the two lifting plates through two screw nuts. The upper half of the rotating rod is formed with threads meshing with the screw nuts. During actual use, according to the rotation directions of the bevel gear I and the bevel gear II, the threads on the surfaces of the two rotating rods are opened in the same or opposite directions to ensure that when the two rotating rods rotate simultaneously, the two screw nuts are driven to rise or fall synchronously.

[0011] As a preferred embodiment, a shielding plate is connected to the lower side between the two baffles. Bearing seats I are provided inside the shielding plate and at the top of the equipment cavity and are connected to the rotating rods. The bottom of the equipment cavity is symmetrically connected to the surfaces of the two rotating rods through four bearing seats II. The bearing seats I and the bearing seats II play a role in assisting the rotation of the rotating rods and the rotating shafts, and reducing the resistance during their rotation.

[0012] As a preferred embodiment, a bottom plate is provided at the bottom of the main body of the power distribution cabinet, a rain shelter is provided above the main body of the power distribution cabinet, double doors are correspondingly connected to the front surface of the main body of the power distribution cabinet through two hinges, and two ventilation fans with both exhaust and supply functions are symmetrically installed through the top of the main body of the power distribution cabinet and extending downward into the equipment cavity. When the ventilation fans are kept in the normally open state for a long time and the inner air inlet is opened, it can cooperate with the ventilation fans to improve the ventilation efficiency inside the main body of the power distribution cabinet and accelerate the heat dissipation speed.

[0013] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: The temperature sensor plays a role in detecting the temperature inside the main body of the power distribution cabinet. By cooperating with the controller to control the double-headed motor, it can automatically control the opening and closing state of the inner air outlet. By arranging the lifting plate between the baffle and the inner wall of the equipment cavity, and cooperating with the double-headed motor, the lifting plate can be driven to move up and down through the screw nut. When the lifting plate descends and fits with the inner wall of the U-shaped groove 1, the inner air outlet on its surface is blocked, achieving the effect of automatically controlling the closing of the inner air outlet in strong wind or rainy weather. When the lifting plate moves above the baffle, the gas outside the main body of the power distribution cabinet can sequentially pass through the outer air outlet, the U-shaped groove 1, and the U-shaped groove 2 and then flow into the equipment cavity through the inner air outlet, reducing the temperature inside the electrical cabinet. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of a high and low voltage power distribution cabinet equipped with an automatic window opening and closing structure of the present utility model.

[0016] Figure 2 It is a front view of the plane of a high and low voltage power distribution cabinet equipped with an automatic window opening and closing structure of the present utility model.

[0017] Figure 3 It is a top view of the plane of a high and low voltage power distribution cabinet equipped with an automatic window opening and closing structure of the present utility model.

[0018] In the figure, 100 - bottom plate, 200 - main body of the power distribution cabinet, 210 - equipment cavity, 220 - outer air outlet;

[0019] 300 - baffle, 310 - U-shaped groove 1, 320 - lifting plate, 330 - U-shaped groove 2, 340 - inner air outlet;

[0020] 400 - double-headed motor, 410 - rotating rod, 420 - bevel gear 1, 430 - bevel gear 2, 440 - rotating rod, 450 - screw nut;

[0021] 500 - temperature sensor, 510 - controller. Detailed Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a high and low voltage power distribution cabinet equipped with an automatic window opening and closing structure, including: a power distribution cabinet main body 200, a lifting plate 320, and a double-headed motor 400. A device cavity 210 is formed by the front surface of the power distribution cabinet main body 200 recessing backward. A double-headed motor 400 is installed at the bottom of the device cavity 210. A temperature sensor 500 and a controller 510 linearly connected to the temperature sensor 500 and the double-headed motor 400 are provided at the top of the device cavity 210. A plurality of outer air vents 220 are formed corresponding to and penetrating the left and right surfaces of the power distribution cabinet main body 200 at the lower sides of the left and right surfaces of the device cavity 210;

[0024] A baffle 300 is welded to the bottom of the left surface of the device cavity 210. A lifting plate 320 is attached above the left surface of the device cavity 210. A plurality of inner air vents 340 are formed by the lifting plate 320 penetrating the left and right surfaces. The middle of the top of the right surface of the lifting plate 320 is connected to a rotating rod 440 through a screw nut 450. The bottom of the rotating rod 440 is meshed with a first bevel gear 420 through a second bevel gear 430. One end of the first bevel gear 420 is connected to a rotating shaft 410, and the other end of the rotating shaft 410 is connected to the double-headed motor 400.

[0025] The baffle 300 is welded to the bottom of the left surface of the device cavity 210. A downwardly recessed U-shaped groove one 310 is formed by the top of the baffle 300 communicating with its left surface;

[0026] The vertical length of the lifting plate 320 is greater than the vertical length of the baffle 300. The bottom of the lifting plate 320 extends into the U-shaped groove one 310, and the outer surface of the lifting plate 320 is attached to the inner wall of the U-shaped groove one 310. A upwardly recessed U-shaped groove two 330 is formed by the bottom of the lifting plate 320 communicating with its left surface. The U-shaped groove one 310 and the bottom of the lifting plate 320 are both formed as inclined surfaces with the left side lower and the right side higher. The formation of the U-shaped groove one 310 and the U-shaped groove two 330 facilitates the external air flow of the power distribution cabinet main body 200 to enter the inner air vents 340 through the inside of the baffle 300 and the lifting plate 320.

[0027] The baffle 300 is symmetrically fixed in two groups on the left and right sides of the inner wall of the device cavity 210, and two lifting plates 320 are symmetrically inserted into the two groups of baffles 300.

[0028] The rotating rods 440 are symmetrically erected in two groups on the left and right sides inside the equipment cavity 210. At the bottom of the two groups of rotating rods 440, bevel gears two 430 are horizontally connected. On the side of the two groups of bevel gears two 430 facing the double-headed motor 400, bevel gears one 420 are meshed respectively. The two groups of bevel gears one 420 are respectively connected to both ends of the double-headed motor 400 through a group of rotating rods 410;

[0029] The two groups of rotating rods 440 are connected to the two groups of lifting plates 320 through two groups of screw nuts 450. The upper half of the rotating rod 440 is formed with threads meshing with the screw nuts 450. During actual use, according to the rotation directions of the bevel gear one 420 and the bevel gear two 430, the threads on the surfaces of the two groups of rotating rods 440 are opened in the same or opposite directions to ensure that when the two groups of rotating rods 440 rotate simultaneously, the two groups of screw nuts 450 are driven to rise or fall synchronously.

[0030] A shielding plate 300 is connected to the lower side between the two groups of baffle plates 300. A bearing seat one is provided inside the shielding plate 300 and at the top of the equipment cavity 210 and is connected to the rotating rod 440. The bottom of the equipment cavity 210 is symmetrically connected to the surfaces of the two groups of rotating rods 410 through four groups of bearing seats two. The bearing seat one and the bearing seat two play a role in assisting the rotation of the rotating rod 440 and the rotating rod 410, and reducing the resistance during their rotation.

[0031] A bottom plate 100 is provided at the bottom of the main body 200 of the power distribution cabinet. A rain shelter is provided above the main body 200 of the power distribution cabinet. Two double doors are correspondingly connected to the front surface of the main body 200 of the power distribution cabinet through two groups of hinges. Two ventilation fans with both exhaust and supply functions are symmetrically installed at the top of the main body 200 of the power distribution cabinet and penetrate downward into the equipment cavity 210. When the ventilation fans are kept in the normally open state for a long time and the inner air outlet 340 is opened, it can cooperate with the ventilation fans to improve the ventilation efficiency inside the main body 200 of the power distribution cabinet and accelerate the heat dissipation speed.

[0032] Embodiment 1: Before actual use, the staff pre-sets an interval value of a temperature in the controller 510. When the temperature inside the electrical cabinet is in the normal temperature state affected by the environment, for example, in a strong wind or rainy day environment, the temperature sensor 500 may detect that the temperature in the main body 200 of the power distribution cabinet is lower than the set temperature. At this time, the temperature sensor 500 will output a temperature signal to the inside of the controller 510. After receiving and processing the signal, the controller 510 can apply a reverse rotation instruction to the double-headed motor 400. The temperature sensor 500 is generally connected to the signal input end of the controller 510 through a wire. Some controllers 510 may have a dedicated analog input channel for temperature signals. The output end of the controller 510 is connected to the power control part of the double-headed motor 400 to adjust the operating state of the load according to the received temperature signal. All of these are prior arts, and their models can be selected according to needs and will not be elaborated here. At this time, after the two groups of rotating rods 410 are rotated by the double-headed motor 400, they cooperate with the two groups of bevel gears 420 to drive the corresponding bevel gears 430 and the screw rod 440 to rotate. When the screw rod 440 rotates, the screw nut 450 moves downward on its surface, so that the lifting plate 320 gradually extends into the baffle 300. When the lifting plate 320 fits against the inner wall of the U-shaped groove 310, the inner air inlet 340 on its surface is blocked by the baffle 300, and rainwater and dust outside the main body 200 of the power distribution cabinet no longer enter the equipment cavity 210 through the inner air inlet 340, achieving the effect of automatically controlling the closing of the inner air inlet 340.

[0033] Embodiment 2: When the temperature sensor 500 detects that the temperature in the main body 200 of the power distribution cabinet is higher than the set temperature, it outputs a signal to the inside of the controller 510. The controller 510 applies a forward rotation instruction to the double-headed motor 400. At this time, the lifting plate 320 moves to the top of the equipment cavity 210 following the screw nut 450. The inner air inlet 340 on the surface of the lifting plate 320 is no longer blocked by the baffle 300, so that the inner air inlet 340 can be automatically controlled to be adjusted to the open state. The gas outside the main body 200 of the power distribution cabinet can sequentially pass through the outer air inlet 220, the U-shaped groove 310, and the U-shaped groove 330 and then flow into the equipment cavity 210 through the inner air inlet 340, improving the air circulation inside the main body 200 of the power distribution cabinet, accelerating the heat dissipation speed, and reducing the temperature inside the electrical cabinet.

[0034] At the same time, even when both the inner air inlet 340 and the outer air inlet are in the open state in a rainy day environment, since the outer air inlet 220 and the inner air inlet 340 are at different heights, rainwater still cannot cross over the top of the baffle 300 upward and enter the equipment cavity 210, effectively improving the waterproof and dustproof effects on the inside of the equipment cavity 210 and preventing rainwater from seeping in.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high and low voltage distribution cabinet equipped with an automatic switch window structure, comprising: A power distribution cabinet body (200), a lifting plate (320) and a double-headed motor (400), wherein the front surface of the power distribution cabinet body (200) is recessed backwards to form an equipment cavity (210), the double-headed motor (400) is installed at the bottom of the equipment cavity (210), and a temperature sensor (500) and a controller (510) linearly connected to the temperature sensor (500) and the double-headed motor (400) are provided at the top of the equipment cavity (210), characterized in that a plurality of external air vents (220) are formed on the lower sides of the left and right surfaces of the equipment cavity (210) corresponding to the left and right surfaces of the power distribution cabinet body (200); A baffle (300) is welded to the bottom of the left surface of the equipment cavity (210), and a lifting plate (320) is attached above the left surface of the equipment cavity (210). The lifting plate (320) penetrates the left and right surfaces to form a plurality of internal air outlets (340). A rotating rod (440) is connected to the middle of the top of the right surface of the lifting plate (320) via a screw nut (450). The bottom of the rotating rod (440) is meshed with the bevel gear one (420) via the bevel gear two (430). One end of the bevel gear one (420) is connected to the rotating rod (410), and the other end of the rotating rod (410) is connected to the double-headed motor (400).

2. A high and low voltage distribution cabinet equipped with an automatic opening and closing window structure as claimed in claim 1, characterized in that: The baffle (300) is welded to the bottom of the left surface of the equipment cavity (210), and the top of the baffle (300) is connected to the left surface thereof to form a U-shaped groove (310) that is concave downwards; The vertical length of the lifting plate (320) is greater than the vertical length of the baffle (300); the bottom of the lifting plate (320) extends into the U-shaped groove (310), and the outer surface of the lifting plate (320) is in contact with the inner wall of the U-shaped groove (310); the bottom of the lifting plate (320) is connected to its left surface to form an upwardly concave U-shaped groove (330); the U-shaped groove (310) and the bottom of the lifting plate (320) are both formed into inclined surfaces with the left side lower and the right side higher.

3. A high and low voltage power distribution cabinet equipped with an automatic opening and closing window structure as claimed in claim 2, characterized in that: The baffles (300) are divided into two groups and symmetrically fixed on the left and right sides of the inner wall of the equipment cavity (210), and two groups of lifting plates (320) are symmetrically inserted into the two groups of baffles (300).

4. A high and low voltage distribution cabinet equipped with an automatic opening and closing window structure as claimed in claim 1, characterized in that: The rotating rods (440) are divided into two groups and symmetrically stand upright on the left and right sides of the equipment cavity (210); the bottoms of the two groups of rotating rods (440) are both horizontally connected to bevel gear 2 (430); the two groups of bevel gear 2 (430) are meshed with bevel gear 1 (420) on the side facing the double-headed motor (400); the two groups of bevel gear 1 (420) are respectively connected to the two ends of the double-headed motor (400) through a group of rotating rods (410); The two sets of rotating rods (440) are connected to the two sets of lifting plates (320) via two sets of screw nuts (450), and the upper part of the rotating rod (440) is formed with a thread that meshes with the screw nut (450).

5. A high and low voltage power distribution cabinet equipped with an automatic opening and closing window structure as claimed in claim 4, characterized in that: A shielding plate (300) is connected to the lower side between the two groups of baffles (300), and a bearing seat 1 connected to a rotating rod (440) is provided inside the shielding plate (300) and on the top of the equipment cavity (210), and the bottom of the equipment cavity (210) is symmetrically connected to the surfaces of the two groups of rotating rods (410) through four groups of bearing seats 2.

6. A high and low voltage power distribution cabinet equipped with an automatic opening and closing window structure as claimed in claim 1, characterized in that: A bottom plate (100) is provided at the bottom of the power distribution cabinet body (200), a rain shelter is provided above the power distribution cabinet body (200), a front surface of the power distribution cabinet body (200) is correspondingly connected to a double door via two sets of hinges, and two sets of ventilation fans with both exhaust and air supply functions are symmetrically installed from the top of the power distribution cabinet body (200) downwardly penetrating into the interior of the equipment cavity (210).

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