A distribution box with anti-freezing function

Abstract

The application discloses a distribution box with anti-freezing function, which comprises a box body and a box cover, the box body is internally provided with a heating mechanism, the box cover is provided with a mounting seat and an air outlet mechanism rotatably mounted in the mounting seat, and the air outlet mechanism can spray the high-temperature gas generated by the heating mechanism in a changeable form along the outer surface of the box cover. The distribution box has the advantages that: 1. the heating mechanism can firstly improve the surface temperature of the box cover to melt the bottom layer of snow on the surface of the box cover; 2. the air outlet mechanism can lead the high-temperature gas generated by the heating mechanism out of the box body and spray the high-temperature gas in a changeable form along the outer surface of the box cover, so that the snow on the box cover can be melted in a multi-dimensional manner, the melting process of the whole snow is accelerated, and a thick snow layer is avoided; and the application is dedicated to solving the problem of snow covering on the box cover of the distribution box, preventing the thick snow layer from causing frost in the distribution box and affecting the reliability and continuity of power supply, and preventing the box cover from being in a low-temperature and high-humidity environment for a long time and reducing the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power system, in particular to a distribution box with anti-freezing function. BACKGROUND

[0002] The distribution box has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, no site restriction, wide application, stable and reliable operation, high space utilization, less land occupation and environmental protection effect. It is a control center for reasonably distributing power of various components in the power supply line. With the increase of power demand and the expansion of power grid, high-voltage transmission line distribution box is increasingly widely used in extremely cold areas. However, the existing distribution box does not have external protection device, which leads to the fact that the distribution box is easily affected by ice in low temperature and bad weather conditions, resulting in unstable operation of equipment in the distribution box and difficult maintenance. Therefore, the present application aims to provide a distribution box with anti-freezing function, which can effectively improve the anti-freezing ability of the distribution box in extremely cold areas. SUMMARY

[0003] In order to overcome the technical problems of the prior art, the present application aims to provide a distribution box with anti-freezing function.

[0004] The present application provides a distribution box with anti-freezing function, comprising a box body and a box cover, the box body is internally provided with a heating mechanism, the box cover is provided with a mounting seat and an air outlet mechanism rotatably mounted in the mounting seat, the air outlet mechanism can spray the high-temperature gas generated by the heating mechanism in various forms along the outer surface of the box cover.

[0005] As a preferred technical solution, the air outlet mechanism comprises a motor arranged in the box body, and further comprises:

[0006] A cyclone cylinder comprising a hollow cylinder body and a cyclone cavity with a small top and a large bottom at the bottom, the cyclone cavity is externally connected with the motor;

[0007] A connecting sleeve fixedly connected to the top of the cylinder body and communicating with the cyclone cylinder;

[0008] A plurality of first air pipes, one end of each first air pipe communicating with the side of the connecting sleeve;

[0009] A second air pipe in the form of a ring, the other end of each first air pipe being connected to the second air pipe, and a plurality of first air injection holes being formed in the side of the second air pipe away from the connecting sleeve;

[0010] A cross-shaped fixing frame fixedly connected to the top of the connecting sleeve to support the second air pipe.

[0011] The mounting base penetrates the box cover and is provided with an extension parallel to the outer surface of the box cover, and the extension is provided with an annular wavy groove on the side opposite to the box cover.

[0012] The cross-shaped fixing frame comprises a cross-shaped plate and further comprises:

[0013] A fixing plate is fixed to the bottom of each spoke of the cross-shaped plate by two groups of blocking rods;

[0014] A moving plate is arranged between the spoke and the fixing plate, one end of the moving plate is provided with a bolt and is inserted into the annular wavy groove, and the other end is used for clamping the second air pipe;

[0015] When the cross-shaped plate rotates, the blocking rods drive the moving plate to rotate, and because the bolt moves in the annular wavy groove, the moving plate can drive the second air pipe to move away from or close to the connecting sleeve synchronously.

[0016] As a preferred technical solution, one end of the moving plate away from the connecting sleeve is provided with a first clamping groove, a spiral sleeve is arranged in the first clamping groove, and the second air pipe passes through the spiral sleeve; the moving plate is further provided with a second clamping groove beside the clamping groove, a pin shaft is rotatably arranged in the second clamping groove, one end of the pin shaft is provided with a first push rod capable of being inserted into the spiral groove on the surface of the spiral sleeve, and the bottom of the spoke is provided with a rack capable of engaging with the pin shaft; when the moving plate moves away from or close to the connecting sleeve, the pin shaft moves on the rack to rotate and drives the first push rod to continuously press the spiral sleeve.

[0017] As a preferred technical solution, the air outlet mechanism further comprises a snow sweeping device, and the snow sweeping device comprises:

[0018] A limiting ring is arranged at one end of each fixing plate away from the connecting sleeve;

[0019] A sliding frame is slidingly installed on the limiting ring, and the sliding frame is provided with a snow sweeping plate at one end away from the connecting sleeve, and each fixing plate is provided with the sliding frame on both sides;

[0020] A second push rod is hingedly connected to the moving plate at one end and is hingedly connected to the sliding frame at the other end;

[0021] When the moving plate moves away from or close to the connecting sleeve, the sliding frame provided with the snow sweeping plate slides on the limiting ring under the driving of the second push rod.

[0022] As a preferred technical scheme, the air outlet mechanism further comprises an auxiliary air outlet device, the auxiliary air outlet device comprises a supporting ring, the supporting ring is fixed to the bottom of each fixing plate and abuts against the outer surface of the box cover, the supporting ring comprises two groups of single rings distributed in upper and lower directions, and a jet member is clamped between the two groups of single rings.

[0023] The middle part of the first air pipe is provided with a shunt pipe, the shunt pipe is connected to the upper single ring, the upper single ring and the jet member are both hollow structures, the first air pipe, the upper single ring and the jet member are communicated with each other, and a second jet hole is formed in the side of the jet member away from the connecting sleeve.

[0024] As a preferred technical scheme, the auxiliary air outlet device comprises a rotating shaft with two open ends, the rotating shaft is inserted into the jet member and the upper single ring at the two ends to communicate the jet member and the upper single ring, and the jet member can rotate around the rotating shaft.

[0025] The auxiliary air outlet device further comprises a plurality of first connecting rods and a plurality of second connecting rods, the first connecting rods are fixed to one end of the jet member close to the connecting sleeve, the second connecting rods are arranged between two adjacent groups of first connecting rods and are rotatably connected, and an elastic member is arranged between the second connecting rod and the second air pipe to connect them.

[0026] As a preferred technical scheme, the box cover is arranged in an inclined manner, and the outer surface of the box cover is provided with a flow guide groove along the inclined direction.

[0027] As a preferred technical scheme, the distribution box comprises a control unit arranged on the side of the box body and provided with a temperature sensor, and the heating mechanism and the air outlet mechanism are both signal-connected to the control unit to realize automatic adjustment.

[0028] As a preferred technical scheme, the outer surface of the side of the box body is provided with a solar photovoltaic panel to supply energy for the heating mechanism and the air outlet mechanism.

[0029] In summary, the present application has the following technical effects:

[0030] The power distribution box with anti-freezing function of the present application comprises a box body and a box cover, the box body is internally provided with a heating mechanism, the box cover is provided with a mounting seat and an air outlet mechanism rotatably mounted in the mounting seat, and the air outlet mechanism can spray the high-temperature gas generated by the heating mechanism in a changeable form along the outer surface of the box cover. The power distribution box with anti-freezing function of the present application has the following advantages: 1. The heating mechanism performs heating operation, which firstly increases the surface temperature of the box cover to melt the bottom layer of snow on the surface of the box cover; 2. The air outlet mechanism leads the high-temperature gas generated by the heating mechanism out of the box body and sprays it in a changeable form along the outer surface of the box cover, so as to produce a multi-dimensional melting effect on the snow on the box cover, accelerate the melting process of the whole snow, and avoid the formation of a thick snow layer; 3. The present application is dedicated to solving the problem of snow covering on the box cover of the power distribution box, preventing the thick snow layer from causing frost in the interior of the power distribution box and affecting the reliability and continuity of power supply, and preventing the box cover from being in a low-temperature and high-humidity environment for a long time to reduce the service life. Therefore, compared with the existing power distribution box technology, the power distribution box with anti-freezing function provided by the present application has obvious technical advantages. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0032] Figure 1 is the overall appearance view of the power distribution box of the embodiment of the present application;

[0033] Figure 2 is the partial sectional view of the power distribution box of the embodiment of the present application;

[0034] Figure 3 is the structural schematic view of the air outlet mechanism of the embodiment of the present application;

[0035] Figure 4 is the structural schematic view of the cross-shaped fixing frame of the air outlet mechanism of the embodiment of the present application at different angles;

[0036] Figure 5 is the schematic view of the second function optimization of the air outlet mechanism of the embodiment of the present application;

[0037] Figure 6 is the schematic view of the snow sweeping device of the air outlet mechanism of the embodiment of the present application;

[0038] Figure 7 is the structural schematic view of the auxiliary air outlet device of the air outlet mechanism of the embodiment of the present application;

[0039] Among them, the meanings of the reference signs are as follows:

[0040] 11-box, 12-box cover, 121-guide groove, 122-mounting seat, 1221-annular wave groove, 13-control unit, 131-temperature sensor, 14-solar photovoltaic panel, 15-motor;

[0041] 2-air outlet mechanism, 21-cylinder, 211-cyclone cavity, 22-connection sleeve, 221-cross plate, 2211-rack, 222-fixed plate, 2221-stop rod, 223-moving plate, 2231-first clamping groove, 2232-second clamping groove, 23-first air pipe, 24-second air pipe;

[0042] 3-spiral sleeve;

[0043] 4-tooth shaft, 41-first push rod;

[0044] 5-limiting ring, 51-sliding frame, 511-snow sweeping plate, 52-second push rod;

[0045] 61-single ring, 62-jet element, 63-first connecting rod, 64-second connecting rod, 65-elastic element. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments will be described clearly and completely in the embodiments of the present application with reference to the drawings. The embodiments described in the description are only for illustrative purposes, and are not used to limit the protection scope of the present application, so it should be understood that various modifications and changes can be made to the embodiments without departing from the protection scope of the present application.

[0047] In the description of the present application, unless otherwise explicitly specified and limited, the term "and / or" includes any combination and all combinations of one or more associated listed items. Unless otherwise specified or explained, the terms "connection", "fixation" and the like should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral connection, or electrical connection, or signal connection; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Further, in the description of the present application, it should be understood that the orientation words described in the embodiments are described with the angle shown in the drawings, and should not be understood as a limitation of the embodiments. It should also be understood that in the context, when referring to one element or feature connected with another element (one or more), it can not only be directly connected with the other element (one or more), but also indirectly connected with the other element (one or more) through an intermediate element.

[0049] Before introducing the technical solutions of the present application, it is necessary to set forth the background of the creation of the invention. It is generally known that, with the increase of power demand and the expansion of power grid, high-voltage power distribution boxes are increasingly widely used in extremely cold regions. However, the existing power distribution boxes generally do not have external protection devices, which leads to the fact that the power distribution boxes are easily affected by icing in low temperature and adverse weather conditions, resulting in unstable operation of the equipment in the power distribution box and difficult maintenance. Therefore, the present application aims to provide a power distribution box with anti-icing function, which can effectively improve the anti-icing ability of the power distribution box in extremely cold regions.

[0050] Please refer to Figures 1 to 7 The exemplary embodiments of the present application provide a power distribution box with anti-icing function, which comprises a box body 11 and a box cover 12. The box body 11 is internally provided with a heating mechanism, and the box cover 12 is provided with a mounting seat 122 and an air outlet mechanism 2 rotatably mounted in the mounting seat 122. The air outlet mechanism 2 can spray the high-temperature gas generated by the heating mechanism in various forms along the outer surface of the box cover 12. Specifically, the heating mechanism performs heating operation, first to raise the surface temperature of the box cover 12 to melt the bottom layer of snow on the surface of the box cover 12; the air outlet mechanism 2 leads the high-temperature gas generated by the heating mechanism out of the box body 11 and sprays it in various forms along the outer surface of the box cover 12, to produce a multi-dimensional melting effect on the snow on the box cover 12, accelerate the overall melting process of the snow, and avoid the formation of a thick layer of snow.

[0051] Please refer to Figures 3 to 4 The air outlet mechanism 2 will be described from inside to outside and from bottom to top as follows.

[0052] In some embodiments, the air outlet structure comprises:

[0053] The motor 15 is arranged in the box body 11, and the motor 15 is the power source for the air outlet mechanism 2 to perform actions.

[0054] The cyclone cylinder comprises a hollow cylinder body 21 and a cyclone cavity 211 with a small top and a large bottom at the bottom. The cyclone cavity 211 is externally connected with the motor 15, that is, under the drive of the motor 15, the cyclone cylinder can rotate and further lead the high-temperature gas out of the box body 11 through the cyclone cavity 211 with a small top and a large bottom at the bottom. It should be noted that the cyclone cylinder is rotatably mounted in the mounting seat 122.

[0055] The connecting sleeve 22 is fixedly connected to the top of the cylinder body 21 of the cyclone cylinder and communicates with the cyclone cylinder. It should be understood that the connecting sleeve 22 and the cyclone cylinder are separately arranged to facilitate the installation of the cyclone cylinder in the mounting seat 122. It should be further noted that the bottom of the connecting sleeve 22 and the top of the cylinder body 21 are both provided with flange structures and are fastened by fasteners.

[0056] A plurality of first air pipes 23, one end of which communicates with the side of the connecting sleeve 22, are arranged to guide the high-temperature gas entering the cyclone drum and the connecting sleeve 22 out along the plane of the box cover 12.

[0057] A second air pipe 24 in the form of a ring, the other end of any first air pipe 23 being connected to the second air pipe 24, is arranged to have a plurality of first air injection holes on the side opposite the connecting sleeve 22. The second air pipe 24 is arranged to have the high-temperature gas entering the first air pipe 23 guided out and then entering the second air pipe 24 in the form of a ring, and being uniformly injected in the circumferential direction at the first air injection holes of the second air pipe 24.

[0058] The air outlet mechanism 2 further comprises a cross-shaped fixing frame fixed to the top of the connecting sleeve 22, which is arranged to support the second air pipe 24.

[0059] The above description can obtain the rudiment of the air outlet structure, which can guide the high-temperature gas out of the cavity of the box body 11 and inject it out of the surface of the box cover 12.

[0060] The first functional optimization of the air outlet structure will be described below on the basis of the above rudiment:

[0061] Please refer to Figures 2 to 4 In some embodiments, the mounting seat 122 penetrates the box cover 12 and is provided with an extension parallel to the outer surface of the box cover 12, and the side of the extension opposite the box cover 12 is provided with an annular wavy groove 1221;

[0062] The cross-shaped fixing frame comprises a cross-shaped plate 221, and further comprises:

[0063] A fixed plate 222 fixed to the bottom of each spoke of the cross-shaped plate 221 by two groups of blocking rods 2221;

[0064] A moving plate 223 arranged between the spoke and the fixed plate 222, one end of the moving plate 223 being provided with a latch inserted into the annular wavy groove 1221, and the other end being used to clamp the second air pipe 24;

[0065] From the above description, it can be obtained that when the cross-shaped plate 221 rotates, the blocking rods 2221 drive the moving plate 223 to rotate, and because the latch moves in the annular wavy groove 1221, the moving plate 223 can drive the second air pipe 24 to move away from or close to the connecting sleeve 22 synchronously, that is, the second air pipe 24 will additionally shake under the action of the moving plate 223 moving away from or close to the connecting sleeve 22, so that the high-temperature gas in the pipe generates additional kinetic energy to be able to be injected from the first air injection hole to a farther distance, which is the first functional optimization.

[0066] The second functional optimization of the air outlet mechanism 2 will be described below on the basis of the above first functional optimization:

[0067] Please refer toFigures 2 to 5 In some embodiments, the moving plate 223 is provided with a first clamping groove 2231 away from one end of the connecting sleeve 22, a spiral sleeve 3 is arranged in the first clamping groove 2231, and the second air pipe 24 passes through the spiral sleeve 3; The moving plate 223 is also provided with a second clamping groove 2232 beside the clamping groove, a gear shaft 4 is rotatably arranged in the second clamping groove 2232, one end of the gear shaft 4 is provided with a first push rod 41 capable of being inserted into the spiral groove on the surface of the spiral sleeve 3, and the bottom of the spoke is provided with a rack 2211 capable of engaging with the gear shaft 4; Wherein, when the moving plate 223 is away from or close to the connecting sleeve 22, the gear shaft 4 moves on the rack 2211 to rotate and drives the first push rod 41 to continuously extrude the spiral sleeve 3.

[0068] From the above description, it can be obtained that the second air pipe 24 is externally sleeved with a plurality of spiral sleeves 3 and clamped in the first clamping groove 2231 of the moving plate 223, so as to realize the support effect of the cross-shaped fixing frame on the second air pipe 24. When the moving plate 223 is away from or close to the connecting sleeve 22, the gear shaft 4 located in the second clamping groove 2232 cooperates with the rack 2211 to rotate, thereby driving the first push rod 41 of the rack 2211 to rotate and continuously extrude the spiral groove on the surface of the spiral sleeve 3. That is, the spiral sleeve 3 and the second air pipe 24 are subjected to tangential external force. In this way, on the basis of additional shaking of the second air pipe 24 in the first function optimization, small tangential rotation of the second air pipe 24 also occurs, so that the high-temperature gas in the pipe has higher kinetic energy and can be sprayed in a variable manner to a larger area after shaking and tangential rotation of the second air pipe 24. It is ensured that the top of the box cover 12 can receive sufficient heat in all directions, and uniform heating is realized to more effectively melt the accumulated snow. This is the second function optimization.

[0069] Further, on the basis of the air outlet structure 2 spraying high-temperature gas in a variable manner, the air outlet structure of some embodiments further comprises a snow sweeping device,

[0070] Please refer to Figure 3 and Figure 6 , the snow sweeping device comprises:

[0071] The limiting ring 5 is erected at one end of each fixed plate 222 away from the connecting sleeve 22. It should be understood that this limiting not only serves as the installation basis for the components introduced below, but also improves the stability of the overall structure of the cross-shaped fixed plate 222;

[0072] The sliding frame 51 is slidingly installed on the limiting ring 5, and the sliding frame 51 is provided with a snow sweeping plate 511 away from the connecting sleeve 22. Each fixed plate 222 is provided with a sliding frame 51 on both sides;

[0073] The second push rod 52 is hingedly connected to the moving plate 223 at one end and hingedly connected to the sliding frame 51 at the other end;

[0074] From the above description, it can be obtained that when the moving plate 223 moves away from or approaches the connecting sleeve 22, the sliding frame 51 provided with the snow sweeping plate 511 can slide along the limiting ring 5 under the drive of the second push rod 52, and the snow sweeping plate 511 rotates synchronously to form a pushing force on the snow accumulated on the top of the box cover 12, so that the snow on the top of the box cover 12 can be removed more quickly, the time of the snow staying is reduced, or the snow that is melting or about to accumulate is pushed away to avoid forming a thicker snow layer and reduce the risk of re-icing. It should be noted that when the cross-shaped fixing frame rotates, the snow sweeping plate 511 rotates as a whole, and the sliding frame 51 is arranged to enable the snow sweeping plate 511 to additionally displace reciprocally to further enhance the snow sweeping strength.

[0075] Further, in some embodiments, the air outlet mechanism 2 further comprises an auxiliary air outlet device,

[0076] Please refer to Figure 5 and Figure 7 , the auxiliary air outlet device comprises a support ring which is fixedly connected to the bottom of each fixed plate 222 and abuts against the outer surface of the box cover 12, and the support ring comprises two groups of single rings 61 which are arranged in an upper and lower distribution, and a jet member 62 is clamped between the two groups of single rings 61. It should be understood that the support ring not only serves as an important component of the auxiliary air outlet device, but also plays a supporting role in fixing the fixed plate 222 on the top of the box cover 12; wherein a shunt pipe is arranged in the middle of the first air pipe 23, the shunt pipe is connected to the upper single ring 61, the upper single ring 61 and the jet member 62 are both hollow structures, the first air pipe 23, the upper single ring 61 and the jet member 62 are in communication, and the side of the jet member 62 away from the connecting sleeve 22 is provided with a second jet hole.

[0077] From the above description, it can be obtained that the auxiliary air outlet device is used to spray high-temperature gas to the space below the fixed plate 222, so as to expand the overall jet range of the air outlet mechanism 2. Specifically, part of the high-temperature gas in the first air pipe 23 is introduced to the jet member 62 connected thereto through the shunt pipe, and is sprayed outwardly from the second jet hole of the jet member 62, so as to realize the auxiliary air outlet function.

[0078] Preferably, the auxiliary air outlet device also has a local rotation function, please refer to Figure 1 , and the specific implementation is as follows: the auxiliary air outlet device further comprises a rotating shaft which is not closed at both ends, the rotating shaft is inserted into the jet member 62 and the upper single ring 61 at both ends to connect the two, that is, the jet member 62 and the upper single ring 61 are connected, and the jet member 62 also has a structure basis for rotating around the rotating shaft; at the same time, the auxiliary air outlet device further comprises a plurality of first connecting rods 63 and a plurality of second connecting rods 64, the first connecting rod 63 is fixedly connected to one end of the jet member 62 close to the connecting sleeve 22, the second connecting rod 64 is arranged between two adjacent groups of first connecting rods 63 and is rotatably connected, and an elastic member 65 is arranged between the second connecting rod 64 and the second air pipe 24 for connection, wherein the elastic member 65 is preferably a connecting spring.

[0079] From the above description, it can be obtained that when the moving plate 223 moves away from or approaches the connecting sleeve 22, the second air pipe 24 will expand or contract, and the second connecting rod 64 and the first connecting rod 63 will rotate through the elastic element 65, and then the jet element 62 will rotate locally to have a wider jet range, and the high-temperature gas thrown outward has a stronger impact force, can penetrate a thicker snow layer, improves the contact effect of the hot gas and the snow, and accelerates the melting of the internal snow, so that the accumulation of snow is further reduced.

[0080] Please refer to Figure 1 , as a preferred technical solution, the box cover 12 is inclined, and the design can make the melted snow water naturally flow out of the box cover 12 to be away from the box body 11; and the outer surface of the box cover 12 is provided with a flow guide groove 121 along the inclined direction, which can reduce the contact area between the surface of the box cover 12 and the air outlet mechanism 2 to reduce the resistance of the overall rotation of the cross-shaped fixing frame, and the melted snow water will flow out of the box cover 12 in the flow guide groove 121.

[0081] Please refer to Figure 1 , as a preferred technical solution, in order to make the power distribution box more intelligent, the power distribution box comprises a control unit 13 provided on the side of the box body 11 and configured with a temperature sensor 131, and the heating mechanism and the air outlet mechanism 2 are signal-connected to the control unit 13 to realize automatic adjustment, that is, the power distribution box realizes the start-stop operation of the heating mechanism and the air outlet mechanism 2 through the pre-set programming in the control unit 13. Specifically, when it snows and snow appears on the top of the device, the control unit 13 is started, the temperature sensor 131 monitors the internal and external temperature of the power distribution box, and then the monitored temperature data is transmitted to the control unit 13, the control unit 13 automatically adjusts the heating mechanism to heat, and at the same time, the control unit 13 starts the motor 15 to drive the air outlet mechanism 2 to work. As a preferred technical solution, the outer surface of the side of the box body 11 is provided with a solar photovoltaic panel 14 to supply energy for the heating mechanism and the air outlet mechanism 2.

[0082] In summary, the power distribution box with anti-icing function has the following technical advantages: 1. The heating mechanism performs heating operation, which first increases the surface temperature of the box cover 12 to melt the bottom layer of snow on the surface of the box cover 12; 2. The air outlet mechanism 2 leads the high-temperature gas generated by the heating mechanism out of the box body 11 and sprays it in various forms along the outer surface of the box cover 12 to have a multi-dimensional melting effect on the snow on the box cover 12, accelerate the melting process of the whole snow, and avoid forming a thicker snow layer; 3. The present application is committed to solving the problem of snow covering the box cover 12 of the power distribution box, preventing the over-thick snow layer from causing frost in the interior of the power distribution box to affect the reliability and continuity of power supply, and preventing the box cover 12 from being in a low-temperature and high-humidity environment for a long time to reduce the service life.

[0083] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A distribution box with anti-freezing function, comprising a box body and a box cover, characterized in that, The box body is equipped with a heating mechanism, and the box cover is equipped with a mounting base and an air outlet mechanism that can be rotatably installed in the mounting base. The air outlet mechanism can spray the high-temperature gas generated by the heating mechanism along the outer surface of the box cover in various forms. The air outlet mechanism includes a motor housed within the housing, and further includes: A cyclone duct includes a hollow cylindrical body and a cyclone cavity at the bottom that is smaller at the top and larger at the bottom. The outside of the cyclone cavity is connected to the motor drive. A connecting sleeve is fixed to the top of the cylinder and communicates with the cyclone. Several first tracheae, one end of which is connected to the side of the connecting sleeve; The second air tube is ring-shaped, and the other end of any of the first air tubes is connected to the second air tube. The second air tube has several first air holes on the side facing away from the connecting sleeve. A cross-shaped fixing bracket is fixed to the top of the connecting sleeve to support the second air tube.

2. The distribution box with anti-freezing function according to claim 1, characterized in that, The mounting base penetrates the box cover and has an extension parallel to the outer surface of the box cover. The side of the extension facing away from the box cover has an annular wave groove. The cross-shaped fixing bracket includes a cross plate and also includes: A fixing plate is fixed to the bottom of each spoke of the cross plate by two sets of stop bars; A movable plate is disposed between the spokes and the fixed plate. One end of the movable plate is provided with a pin and inserted into the annular wave groove. The other end is used to clamp the second air tube. When the cross plate rotates, the stop rod drives the moving plate to rotate; and because the pin moves within the annular wave groove, the moving plate can drive the second air pipe to move away from or towards the connecting sleeve synchronously.

3. The distribution box with anti-freezing function according to claim 2, characterized in that, The movable plate has a first locking groove at the end away from the connecting sleeve, and a spiral sleeve is provided in the first locking groove, through which the second air tube passes; the movable plate is also provided with a second locking groove next to the first locking groove, and a toothed shaft is rotatably provided in the second locking groove. One end of the toothed shaft is provided with a first push rod that can be inserted into the spiral groove on the surface of the spiral sleeve, and the bottom of the spoke is provided with a rack that can mesh with the toothed shaft; wherein, when the movable plate moves away from or nears the connecting sleeve, the toothed shaft moves on the rack to rotate, and drives the first push rod to continuously squeeze the spiral sleeve.

4. The distribution box with anti-freezing function according to claim 3, characterized in that, The air outlet mechanism further includes a snow sweeping device, which includes: A limiting ring is mounted on the end of each of the fixing plates away from the connecting sleeve; A sliding frame is slidably mounted on the limiting ring. A snow sweeping plate is provided at the end of the sliding frame away from the connecting sleeve. The sliding frame is provided on both sides of each of the fixed plates. The second push rod has one end hinged to the movable plate and the other end hinged to the sliding frame; When the movable plate moves away from or near the connecting sleeve, the sliding frame of the snow sweeper slides on the limiting ring under the action of the second push rod.

5. The distribution box with anti-freezing function according to claim 4, characterized in that, The air outlet mechanism also includes an auxiliary air outlet device, which includes a support ring, fixed to the bottom of each of the fixed plates and abutting against the outer surface of the box cover. The support ring includes two sets of single rings distributed vertically, with an air jet component sandwiched between the two sets of single rings. The first air tube is equipped with a diversion tube in the middle, which is connected to the upper single ring. The upper single ring and the jet component are both hollow structures. The first air tube, the upper single ring and the jet component are connected. The jet component has a second jet hole on its side facing away from the connecting sleeve.

6. The distribution box with anti-freezing function according to claim 5, characterized in that, The auxiliary air outlet device includes a rotating shaft with open ends. The two ends of the rotating shaft are respectively inserted into the jet component and the upper single ring to connect the two. The jet component can rotate around the rotating shaft. The auxiliary air outlet device further includes several first connecting rods and several second connecting rods. The first connecting rods are fixed to one end of the jet component near the connecting sleeve. The second connecting rods are located between two adjacent sets of first connecting rods and are rotatably connected. An elastic element is provided between the second connecting rods and the second air pipe for connection.

7. The distribution box with anti-freezing function according to claim 6, characterized in that, The lid is inclined, and the outer surface of the lid is provided with a guide groove along the inclined direction.

8. The distribution box with anti-freezing function according to claim 7, characterized in that, The distribution box includes a control unit located on the side of the box and equipped with a temperature sensor. Both the heating mechanism and the air outlet mechanism are connected to the control unit for automatic adjustment.

9. The distribution box with anti-freezing function according to claim 8, characterized in that, The outer surface of the side of the housing is equipped with solar photovoltaic panels to power the heating mechanism and the air outlet mechanism.

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