CN107529324B

CN107529324B - Electric control box

Info

Publication number: CN107529324B
Application number: CN201710817390.5A
Authority: CN
Inventors: 邹加富; 江金源; 张羽; 尤英帅
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-09-12
Filing date: 2017-09-12
Publication date: 2021-12-17
Anticipated expiration: 2037-09-12
Also published as: CN107529324A

Abstract

The invention discloses an electric cabinet, relates to the field of electric control equipment, and aims to enlarge the use space inside the electric cabinet and optimize the heat dissipation performance of the electric cabinet. The electric cabinet comprises a cabinet body, wherein a plurality of outer surfaces of the cabinet body are provided with radiating fins; the box body is internally divided into at least two layers of spaces by a partition plate, the partition plate is made of a heat conduction material, and the partition plate is connected with the box body in a heat conduction mode. Above-mentioned technical scheme, electric cabinet inner space is divided into the multilayer, and the bottom can directly dispel the heat through the electric cabinet, and the part in every layer of space can both be through the radiating fin of baffle with heat fast transfer to case body surface, can realize the fanless structure of electric cabinet on the basis of enlarging electric cabinet inner space rate of utilization and improving its commonality like this for the electric cabinet is the silence basically.

Description

Electric control box

Technical Field

The invention relates to the field of electric control equipment, in particular to an electric control box.

Background

The electrical box is a carrier for the accessories such as the module, the high-voltage power supply, the TR component and the like, is used for placing and fixing the accessories and effectively dissipates heat generated in the using process of the high-power electrical device. The existing electric appliance box is formed by mechanically connecting a sheet metal part and a radiator, a fan is arranged in the box body, and heat generated by the internal electric appliance is dissipated through the fan and the radiator.

The inventor finds that at least the following problems exist in the prior art: the inner space of the existing electric appliance box is not enough to use, and the heat dissipation mode of the internally mounted fan is adopted, so that the defects of high noise, large volume, heavy weight and the like, and the electric appliance box is inconvenient to disassemble, assemble and transport.

Disclosure of Invention

One of the purposes of the present invention is to provide an electric cabinet, which is used for optimizing the heat dissipation performance of the electric cabinet while enlarging the used space inside the electric cabinet.

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

the invention provides an electric cabinet which is characterized by comprising a cabinet body, wherein a plurality of outer surfaces of the cabinet body are provided with radiating fins; the box body is internally divided into at least two layers of spaces by a partition plate, the partition plate is made of a heat conduction material, and the partition plate is connected with the box body in a heat conduction mode.

In an alternative embodiment, the inner surface of the box body in each layer of space is also provided with the heat dissipation fins.

In alternative embodiments, the heat sink fins are selected from one or more of the following: tree fins and rib fins.

In an alternative embodiment, the heat radiating fins are integrally extruded with the case body.

In an alternative embodiment, the tree fin includes a trunk portion having a root connected to the box body and a branch portion connected to the trunk portion.

In an alternative embodiment, the tree fin further comprises a top portion connected to the tip of the trunk portion, the top portion having a plane with a size larger than the tip of the trunk portion.

In an alternative embodiment, the tree fins are formed in rows on an outer surface of the box body.

In an alternative embodiment, the rib-type fins are formed in rows on the inner and/or outer surface of the tank body.

In an alternative embodiment, the case body includes a U-shaped body including a bottom and sides and a case cover attached to the sides of the U-shaped body.

In an alternative embodiment, the heat dissipation fins are located on the outer surface of the bottom of the U-shaped body and are integrally extruded with the U-shaped body.

In an alternative embodiment, the heat dissipation fins are also formed on the outer surface of the case cover and are integrally extruded with the case cover.

In an alternative embodiment, the heat dissipation fins include tree-shaped fins and rib-shaped fins; the tree-shaped fins are formed on the outer surface of the bottom of the U-shaped body, and the rib-shaped fins are formed on the inner surface and the outer surface of the side part and the outer surface of the box cover.

In an optional embodiment, the tree-shaped fins are multiple in number, the tree-shaped fins located at the edges are provided with concave parts, the concave parts can be spliced with concave parts corresponding to the other electric control boxes to form concave grooves for penetrating guide rails, and the two electric control boxes can be connected together side by side through the guide rails.

In an alternative embodiment, the tree-shaped fins are multiple in number, and the tree-shaped fins at the edges are provided with mounting structures through which the electric cabinet can be mounted together with the ground or other components.

In an alternative embodiment, at least one of said ribbed fins on the inner surface of said side portion is provided with a female structure capable of coupling with a coupling member by which the two U-shaped bodies can be coupled together.

In an alternative embodiment, at least one of the ribbed fins located on the inner surface of the side portion has a connecting portion for retaining a separator.

In an alternative embodiment, the connecting portion comprises a groove and a protrusion.

In an alternative embodiment, the partition is provided with a plurality of mounting holes staggered in height, and the mounting holes are connected with the grooves.

In an alternative embodiment, the tank body and the partition are both of a thermally conductive material.

In an alternative embodiment, the cross section of the electric cabinet is rectangular, and the ratio of the width to the length is golden ratio.

In an alternative embodiment, the electrical cabinet is a fanless structure.

In an alternative embodiment, the heating value of the first component in the lower layer space of the box body is larger than that of the second component in the upper layer space.

In an alternative embodiment, the first component comprises: a main board.

In an alternative embodiment, the second component comprises: inductance, communication keysets, filtering board, power strip.

Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:

above-mentioned technical scheme, electric cabinet inner space is divided into the multilayer, and the bottom can directly dispel the heat through the electric cabinet, and the part in every layer of space can both be through the radiating fin of baffle with heat fast transfer to case body surface, can realize the fanless structure of electric cabinet on the basis of enlarging electric cabinet inner space rate of utilization and improving its commonality like this for the electric cabinet is the silence basically.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic view of a three-dimensional structure of an electric cabinet according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an electric cabinet (with a cabinet cover and a base plate removed) according to an embodiment of the present invention;

FIG. 3 is a schematic front view of FIG. 2;

FIG. 4 is an enlarged view of a portion of the partition plate of FIG. 3 fixedly connected to the groove;

fig. 5 is a schematic perspective view of the separator.

FIG. 6 is a first schematic diagram of an electrical appliance layout of an electrical cabinet;

fig. 7 is a schematic diagram of an electrical appliance layout of the electric cabinet.

Reference numerals:

1. a tank body; 2. a heat dissipating fin; 3. a partition plate; 4. a main board; 5. an inductance; 6. a communication patch panel; 7. a filter plate; 8. a power panel; 9. a waterproof terminal; 10. a molded case connector; 11. a U-shaped body; 12. a box cover; 13; a top plate; 14. a base plate; 21. a tree-shaped fin; 22. a rib-shaped fin; 211. a trunk portion; 212. a branch part; 213. a top portion; 214. a mounting structure; 215. an inner concave portion; 221. a first ribbed fin; 222. a second ribbed fin; 223. a concave structure; 224. a groove; 225. a boss portion; 31. mounting holes; 226. a bolt; 227. and a nut.

Detailed Description

The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 7.

Referring to fig. 1, an embodiment of the present invention provides an electric cabinet, including a cabinet body 1, where a plurality of outer surfaces of the cabinet body 1 are disposed with heat dissipation fins 2; the box body 1 is internally divided into at least two layers of spaces by the partition plate 3, the partition plate 3 is made of a heat conduction material, and the partition plate 3 is connected with the box body 1 in a heat conduction manner.

Above-mentioned technical scheme, electric cabinet inner space is divided into the multilayer, and the bottom can directly dispel the heat through the electric cabinet, and the part in every layer of space can both be through 3 with heat fast transfer to the radiating fin 2 of 1 surface of case body of baffle, can realize the fanless structure of electric cabinet on the basis of enlarging the inside space usage of electric cabinet and improving its commonality like this for the electric cabinet is the silence basically.

In order to enable the partition plates 3 to rapidly transfer heat to the radiating fins 2 on the box body 1, the box body 1 and the partition plates 3 are both made of heat-conducting materials. For example, all be the aluminum alloy material specifically, perhaps case body 1 is the aluminum alloy material, and baffle 3 is the sheet metal component. The electrical appliance box is made of aluminum materials with high single heat conductivity, a fan can be omitted, noise is reduced, the size and the weight of the box body are reduced, and light weight is achieved.

The electrical part in the electric cabinet is overall arrangement from top to bottom in the stromatolite, and arranges according to the voltage level in proper order, and the high voltage is located the lower floor, and the low voltage is located the upper strata, so arrange the overall dimension that can reduce the plastic-aluminum box, reduce whole weight.

In this embodiment, the heat generation amount of the first component located in the lower space of the box body 1 is larger than the heat generation amount of the second component located in the upper space.

Specifically, the first component includes: a main board 4. The second component includes: inductance 5, communication keysets 6, filtering board 7, power board 8.

As shown in fig. 6 and 7, the whole layout of the electric devices is arranged in an upper-lower double-layer manner, the bottom layer is a main board 4 with large heat productivity and high voltage level (strong electricity), the fins close to the back of the electric cabinet furthest dissipate heat generated in operation, and the special position of the bottom layer can generate an electrostatic shielding effect, so that the effects of eliminating electric field interference and protecting the main board 4 can be achieved. The second layer (namely the upper layer) is formed by arranging all electric devices in different areas by means of partition plates, and sequentially comprises an inductor 5, a communication adapter plate 6, a filter plate 7 and a power panel 8. The communication adapter plates 6 are distributed orderly according to the voltage, wherein the communication adapter plates 6 (with the lowest voltage) are arranged at the highest end, and the electric gap is the smallest, so that the space utilization rate of electric devices can be improved, and the overall height of the electric cabinet is reduced. Meanwhile, the circuits are wired according to a double-layer plane, a certain safety distance is kept between the circuits, the circuits are protected from being interfered, and the stability of the system is improved. A plurality of waterproof terminals 9 and plastic shell connectors 10 are distributed on the outer side of the top plate of the box body 1, so that the sealing performance of the electric cabinet is enhanced, and the safety of internal wiring is improved.

Further, the inner surface of the box body 1 in each layer of space is also provided with heat radiating fins 2.

This 1 of case sets up radiating fin 2 in the face that can set up radiating fin 2 as much as possible, can be favorable to improving the heat dissipation of electric cabinet with heat radiating area maximize like this, realizes its heat dissipation under the fan-free prerequisite, and can reduce the noise of the affiliated equipment of electric cabinet.

Referring to fig. 1, in the present embodiment, an electric cabinet structure having the following structure is taken as an example of the cabinet body 1, and the electric cabinet is substantially rectangular as a whole. The electric cabinet comprises a U-shaped body 11 and a cover 12, wherein the cover 12 is substantially a flat plate, the U-shaped body 11 is shown in fig. 3, the U-shaped body 11 comprises a side portion and a bottom portion, which form three openings, two of the openings are opposite, and a top plate 13 and a bottom plate 14 are assembled at the two opposite openings. The third opening is used for arranging a cover 12, see fig. 1, which cover 12 is arranged at the free end of the two side parts. The U-shaped body 11, the box cover 12, the top plate 13 and the bottom plate 14 of the electric cabinet respectively adopt an aluminum extrusion forming process, and the electric cabinet has good heat dissipation performance.

In this embodiment, all the heat dissipating fins 2 on the U-shaped body 11 are integrally formed by extrusion with the U-shaped body 11, and the heat dissipating fins 2 on the case cover 12 are integrally formed by extrusion with the case cover 12.

As shown in fig. 2, the U-shaped body 11 has a plurality of fin-shaped protrusions extending outward from both sides thereof, and the inside thereof is in contact with the partition 3, so that the electronic components can be rapidly transferred to the outside through the partition 3. The back of the U-shaped body 11 is provided with a plurality of tree-shaped fins 21, and the unique structure of the tree-shaped fins greatly increases the heat dissipation surface area of the fins contacted with air, so that the heat dissipation performance is superior to that of the rib structures on two sides. The partition plate 3 divides the internal space of the electric appliance box into two parts, and the high heat source part is close to the bottom of the U-shaped body 11 and directly and quickly radiates heat through the tree-shaped fins 21. And the low-power part is arranged on the partition plate 3, and the heat is transmitted to the shell by using the convex ribs, so that the traditional one-dimensional heat dissipation is converted into two-dimensional heat dissipation, the heat dissipation efficiency of the system is improved, and the problem of uneven heat dissipation of some local places is avoided.

Optionally, the electrical cabinet is rectangular in cross-section and the ratio of width b to length c is in the golden ratio, i.e. 0.618.

The cross section size of electric cabinet designs according to the golden proportion, but case body 1 and radiating fin 2 of electric cabinet integrative extrusion, and the processing property is good, and all radiating fin 2 integrated into one piece, simple process, low cost, and grounding performance is splendid.

The heat dissipating fins 2 may have various structures, and the tree-shaped fins 21 and the rib-shaped fins 22 are used as an example in the present embodiment.

Referring to fig. 3, the tree fin 21 may have various structural forms, such as: the tree is formed by a trunk and single-layer or multi-layer branches, the branches can be arc-shaped and linear, and the branches on the same layer do not intersect. The curved direction of each branch can be the same or opposite if the branches are curved. The structure of the tree fin 21 used in the present embodiment will be described in detail later.

The rib-type fin 22 is a fin having a strip-like cross section. This rib type fin 22 also can increase heat radiating area, and rib type fin 22's structure is regular, does benefit to the range, the placing of whole electric cabinet.

The radiating fins 2 with different structures can be arranged according to the characteristics of the electric cabinet, the positions of the radiating fins 2 can be the inner surface or the outer surface of the electric cabinet, the radiating fins 2 can also be arranged on the inner surface and the outer surface simultaneously, and all the radiating fins 2 are mutually matched to play a better radiating effect. Above-mentioned technical scheme can improve the position that sets up of electric cabinet radiating fin 2 for the heat dispersion of electric cabinet is better, can satisfy the heat dissipation requirement of electrical components in the electric cabinet under the prerequisite that does not use the fan, realizes that the electric cabinet is no fan structure.

Referring to fig. 1, the bottom surface of the box body 1 is provided with tree-shaped fins 21, and the side surface of the box body 1 is provided with rib-shaped fins 22.

Referring to fig. 1 and 3, the outer surface of the bottom of the U-shaped body 11 is provided with tree-shaped fins 21.

The tree-shaped fins 21 correspond to the largest heat dissipation surface of the box body 11, the heat dissipation area of the tree-shaped fins 21 is large, and the heat dissipation effect of the electric cabinet can be effectively improved due to the arrangement.

The specific structure of the tree-shaped fin 21 will be described.

Referring to fig. 1, the tree fin 21 includes a trunk portion 211 and branch portions 212, the root of the trunk portion 211 being connected to the box body 1, the branch portions 212 being connected to the trunk portion 211.

Fig. 1 shows a case where a single-stage, multi-layer branch portion 212 is provided, and a plurality of branch portions 212 are formed on each trunk portion 211, and these branch portions 212 are all first-stage branch portions. It will be appreciated that the branches 212 may be arranged in multiple levels, such as second, third, or even more levels of branches on the branches 212 shown in FIG. 1. When the multi-stage branch portion 212 is provided, the size of the entire tree-shaped fin 21 is larger and the heat radiation area is also larger. The number of the branch layers, the number of the stages and the total height of the tree-shaped fins 21 can be determined according to the heat dissipation area required by the electric cabinet.

In this embodiment, the branch parts 212 include two or more layers, and fig. 1 shows three layers of branch parts 212 on each trunk part 211. Under the unchangeable prerequisite of electric cabinet overall dimension, multilayer branch of trees portion 212 can make heat radiating area bigger, and the radiating effect is better.

In this embodiment, the branches 212 are arcuate.

Referring to fig. 1, in order to make the heat dissipation area larger and to make the electric cabinet easy to place, the tree fin 21 further includes a top portion 213, the top portion 213 is connected to the tip of the trunk portion 211, and the top portion 213 has a plane having a size larger than the tip of the trunk portion 211.

The tree-shaped fins 21 are provided with the tops 213, and the radiating fins 2 outside the electric cabinet are well protected, so that a user is not easily scratched and the radiating fins 2 are not easily damaged. The tree-shaped fin 21 used outside the electric cabinet is provided with a top 213, which is convenient for installing the electric cabinet in various installation modes.

Referring to fig. 1, the tree fins 21 are plural, and the top 213 of each tree fin 21 is flush. The structure is convenient for subsequent arrangement and placement of the electric cabinet.

The structure ensures that the external radiating fins 2 of the electric cabinet are well protected, and the electric cabinet is not easy to scratch a user and damage the radiating fins 2. The tree-shaped fins 21 have larger heat dissipation areas, the tree branch parts 212 at the roots of the fins are more favorable for heat dissipation, the heat dissipation effect of the tree-shaped fins is better than that of the traditional heat dissipation fins 2, and the auxiliary heat dissipation of the additional side heat dissipation fins 2 is greatly improved compared with the heat dissipation performance of the existing electric cabinet. The 360-degree dead-angle-free heat dissipation design of the all-aluminum electric cabinet can be realized. The tree-shaped fins 21 are simple and attractive, and the shape matched with the golden ratio of the whole electric cabinet is more attractive.

Referring to fig. 2, the tree-shaped fins 21 are plural, and the tree-shaped fins 21 are formed in rows on the outer surface of the bottom of the U-shaped body 11, and all the tree-shaped fins 21 can be formed by one-time extrusion molding. The heights of the tree fins 21 are the same. The structure not only enables the whole structure of the electric cabinet to be clean and tidy, has proper proportion, does not have a protruding tip, and can not scratch operators and other parts.

Alternatively, the tree fin 21 is plural, and the top 213 of each tree fin 21 is flush.

Alternatively, the root of the trunk portion 211 is thicker than the tip thereof. The tree-shaped fin 212 of the structure is stable and reliable in structure. Alternatively, the trunk portion 211 is tapered in size from the root to the tip.

Referring to fig. 1, tree-shaped fins 21 are formed in rows on the outer surface of the box body 1.

Above-mentioned technical scheme, the whole heat dispersion of electric cabinet is better than ordinary electric cabinet heat dispersion, and main heat dissipation fin adopts novel tree-shaped fin 21, and rib type fin 22 on side and the case lid assists the heat dissipation. The tree fin 21 is composed of a top 213, a branch 212, and a trunk 211. The trunk portion 211 is perpendicular to the surface of the box body 1, and serves as a main trunk of the tree-shaped fin 21 to perform a main heat dissipation task, and the trunk portion 211 is thick to thin from the bottom to the top 213. The branch portion 212 starts to grow from the bottom surface, spreads to both sides, and spreads in a certain arc. The number of layers of the branch parts 212 is determined by the specific situation, the higher the heat dissipation requirement, the higher the number of layers of the branch parts 212 is, and fig. 1 shows a three-layer branch part 212 structure. The top 213 is perpendicular to the stem 211 and parallel to the heat dissipating bottom.

In the present embodiment, the rib-type fins 22 are formed in rows on the inner surface and/or the outer surface of the tank body 1.

The arrangement position of the heat dissipating fins 2 will be described below with reference to the specific structure of the box body 1.

Referring to fig. 1, in the present embodiment, the box body 1 includes a U-shaped body 11 and a box cover 12, the box cover 12 is disposed on the U-shaped body 11, and the U-shaped body 11 includes a bottom and a side.

Referring to fig. 1, the tree-shaped fin 21 is located on the outer surface of the bottom of the U-shaped body 11 and is integrally extruded with the U-shaped body 11. A part of the rib-type fins 22 are formed on the inner and outer surfaces of the side portions and are integrally formed with the U-shaped body 11.

Referring to fig. 1, another portion of the rib-type fins 22 is formed on the outer surface of the case cover 12 and is integrally press-molded with the case cover 12.

Referring to fig. 1 and fig. 2, in order to neatly, firmly arrange a plurality of electric cabinets, tree-shaped fin 21's quantity is a plurality of, and tree-shaped fin 21 that is located the edge is equipped with interior concave part 215, and interior concave part 215 can be pieced together with the interior concave part 215 that another electric cabinet corresponds the position and form the concave groove that is used for alternating the guide rail, can link together two electric cabinets side by side through the guide rail. Through the concave groove, a plurality of independent electric cabinets can be connected together, so that each electric cabinet is not easy to shift, and the stability of the position of the electric cabinet after being placed is ensured. Above-mentioned technical scheme, outside tree-shaped fin 21 can be used to the electric cabinet and transversely assembles, assembles the figure and decide according to the in service behavior, can infinitely assemble.

Referring to fig. 1 and 2, in order to make the connection of the two electric cabinets more stable, the ribbed fins 22 of the outer surface of the cabinet body 1 are also provided with an inner recess 215. As will be described in more detail below.

The two recesses 215 form, for example, dovetail grooves, the cross section of the rail also being dovetail-shaped, the rail being inserted into the dovetail grooves to connect the two electrical cabinets together.

In some cases, it may be necessary to mount the electric cabinet on the ground or other components, and optionally, referring to fig. 1, in this embodiment, the tree-shaped fins 21 are plural in number, and the tree-shaped fins 21 at the edge are provided with mounting structures 214, so that the electric cabinet can be mounted with the ground or other components through the mounting structures 214.

The mounting structure 214 supports multiple mounting means such as back-hanging mounting, rivet mounting, bolting, and pin-and-socket mounting. The mounting structure 214 may be a hole, recess, or the like. After the installation structure 214 is arranged, when the electric cabinet is installed, parts such as lifting lugs and installation seats do not need to be welded on the electric cabinet. Therefore, the mounting structure 214 is directly formed at the edge of the tree-shaped fin 21, so that the step of welding a lifting lug or a mounting seat before the electric cabinet is mounted in the prior art can be omitted, the mounting process of the electric cabinet is simplified, and the use convenience of the electric cabinet is improved.

For the sake of convenience of distinction, the ribbed fin 22 provided on the inner surface of the U-shaped body 11 is referred to as a first ribbed fin 221, and the ribbed fin 22 provided on the outer surface of the U-shaped body 11 is referred to as a second ribbed fin 222.

Referring to fig. 3, the first rib-type fins 221 have a size smaller than that of the second rib-type fins 222. Adopt above-mentioned structure setting, can guarantee the radiating effect on the one hand, on the other hand then can guarantee the inside installation space of U-shaped body 11.

Referring to fig. 3, the heights of the second rib-type fins 222 provided on the outer surface of the tank body 1 are the same.

Referring to fig. 3, the first ribbed fins 221 provided on the inner surface of the box body 1 have various heights, and the first ribbed fins 221 are not flush, so that on one hand, the wires can be arranged and fixed conveniently, and on the other hand, part of the first ribbed fins 221 can be used as connecting parts with other parts (such as a partition plate and other U-shaped bodies 11). Referring to fig. 3, the portion of the first rib-type fin 221 having an extremely small size is also referred to as a micro fin.

Referring to fig. 1, in the present embodiment, at least one of the first ribbed fins 221 located on the inner surface of the side portion is provided with a concave structure 223 capable of being coupled with a coupling member by which the two U-shaped bodies 11 can be coupled together.

Referring to fig. 1, there is at least one first ribbed fin 221 provided with a female structure 223 able to be coupled with a coupling member by means of which the U-shaped bodies 11 of the two tank bodies 1 can be coupled together. The concave structure 223 is, for example, a thread groove, and the connecting member is, for example, a bolt or the like. So can make the electrical components connecting wire between two electric cabinets all be located inside the electric cabinet, avoid the connecting wire between two electric cabinets to expose, guarantee electrical equipment's safety.

In this embodiment, the cross-section of the concave structure 223 is C-shaped. If two U-shaped bodies 11 are connected by bolts, the concave structure 223 can be formed by integrally forming a groove with a smooth inner wall and then processing an internal thread.

Referring to fig. 1, in order to facilitate the layering of the internal space of the electric cabinet and improve the utilization rate of the internal space of the electric cabinet, at least one first connecting part for clamping the partition board 3 exists in the first ribbed fin 221 located on the inner surface of the side part. The connection portion may be a groove 224 or a protrusion 225. Referring to fig. 3, in this embodiment, the protrusion 225 is generally H-shaped in cross section, which is well suited for forming a pull-out connection with the partition to facilitate adjustment of the position of the partition 3.

Referring to fig. 5, the partition 3 is provided with a plurality of height-staggered mounting holes 31, and the mounting holes 31 are connected with the grooves 224.

Referring to fig. 4 and 5, the partition boards 3 are connected in a drawing manner, and are locked and fixed by three sets of bolts 226 and nuts 227 on two sides. The U-shaped body 11 is provided with a groove 224 for the nut 227 to move inside, and the nut 227 is matched with the groove 224. Before the partition 3 is assembled, the bolt 226 and the nut 227 are in a loosened state, the nut 227 slides along the groove 224, the partition 3 is driven to move longitudinally inwards to the back side of the upper cover and then stops, and the bolt 226 is tightened to fix the two side directions by using a pressing force. Three corresponding hole grooves are drilled in the groove 224 in the final stop position of the nut, when the bolt 226 is screwed down, the front end part of the bolt 226 just enters the corresponding hole, namely, the longitudinal fixation of the partition plate 3 is ensured, the structure is simple, and the assembly is convenient.

It should be noted that the above-mentioned method is only one of the methods for realizing the sliding and pulling of the partition board 3, for example, the shape of the cross section of the groove 224 may be a dovetail groove, or both ends of the partition board 3 may be processed into a shape fitting with the groove 224, and directly contact with the groove 224, and the tail end is screwed and fixed by a screw, and the sliding and pulling of the partition board 3 may also be realized.

As shown in fig. 5, three groups of mounting holes 31 which are equidistantly arranged and are triangular are formed in the partition plate 3, and the heights of the partition plate 3 and the bottom of the U-shaped body 11 can be adjusted as required, so that the operation elasticity of the motor box is increased, the universality is improved, and the motor box can be applied to more series of products.

Referring to fig. 1, in this embodiment, the tree-shaped fins 21 are located on the outer surface of the bottom of the U-shaped body 11, the area of the bottom surface corresponding to the tree-shaped fins 21 is the largest, and the tree-shaped fins 21 have a large heat dissipation area and serve as main heat dissipation fins. The rib-type fins 22 located on the outer surface of the side portion of the U-shaped body 11 are arranged in alignment as a whole. The ribbed fins 22 on the inner surface of the sides of the U-shaped body 11 include larger sized fins for connection with other components and smaller sized micro fins. That is, the rib-type fins 22 on the inner surface of the side part are used as the auxiliary heat dissipation fins, and part of the fins are also used as the connecting parts, so that the number of the connecting parts required to be arranged can be greatly reduced, the utilization rate of the internal space of the electric cabinet can be improved, and the wire fixing and wiring are facilitated.

In this embodiment, the case body 1 is made of a heat conductive material. Specifically, the U-shaped body 11 is made of a heat conductive material, and the lid 12 is also made of a heat conductive material. The fins and parts supported by the fins are integrally extruded and formed, and the fins and the parts supported by the fins are made of the same material.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric cabinet is characterized by comprising a cabinet body (1), wherein a plurality of outer surfaces of the cabinet body (1) are provided with radiating fins (2); the interior of the box body (1) is divided into at least two layers of spaces by a partition plate (3), the partition plate (3) is made of a heat conduction material, and the partition plate (3) is in heat conduction connection with the box body (1);

the heat productivity of the first component in the lower layer space of the box body (1) is larger than that of the second component in the upper layer space;

the box body (1) comprises a U-shaped body (11), and the U-shaped body (11) comprises a bottom part and a side part; at least one rib-shaped fin (22) is arranged on the inner surface of the side part of the U-shaped body (11), and the rib-shaped fin (22) is provided with a connecting part used for clamping the separator (3), and the connecting part comprises a groove (224); the partition plate (3) is provided with a plurality of mounting holes (31) with staggered heights, and the mounting holes (31) are connected with the grooves (224) through bolts (226) and nuts (227); the nut (227) is matched with the groove (224);

wherein the partition (3) is configured to be installed using the steps of: before the partition (3) is assembled, the bolt (226) and the nut (227) are in a loosened state; the nut (227) is then slid into place along the groove (224) and the bolt (226) is tightened.

2. The electric cabinet according to claim 1, characterized in that the inner surface of the cabinet body (1) in each level of space is also arranged with the heat dissipating fins (2).

3. The electric cabinet according to claim 1 or 2, characterized in that the heat dissipating fins (2) are selected from one or more of the following: tree-shaped fins (21) and rib-shaped fins (22).

4. The electric cabinet according to claim 1, characterized in that the heat dissipating fins (2) are integrally extruded with the cabinet body (1).

5. The electrical cabinet according to claim 3, characterized in that the tree-shaped fins (21) comprise a trunk portion (211) and branch portions (212), the root of the trunk portion (211) being connected to the cabinet body (1), the branch portions (212) being connected to the trunk portion (211).

6. The electric cabinet according to claim 5, characterized in that the tree-shaped fin (21) further comprises a top portion (213), the top portion (213) being connected to the tip of the trunk (211), the top portion (213) having a plane with a size larger than the tip of the trunk (211).

7. The electric cabinet according to claim 3, characterized in that the tree-shaped fins (21) are formed in rows on the outer surface of the cabinet body (1).

8. The electric cabinet according to claim 3, characterized in that the rib-type fins (22) are formed in rows on the inner and/or outer surface of the cabinet body (1).

9. The electric cabinet according to claim 1, characterized in that the cabinet body (1) further comprises a cover (12), the cover (12) being connected to a side of the U-shaped body (11).

10. The electric cabinet according to claim 9, characterized in that the heat dissipating fins (2) are located on the outer surface of the bottom of the U-shaped body (11) and are integrally extruded with the U-shaped body (11).

11. The electric cabinet according to claim 9, characterized in that the heat dissipating fins (2) are also formed on the outer surface of the cover (12) and are integrally extruded with the cover (12).

12. The electric cabinet according to claim 9, characterized in that the heat dissipating fins (2) comprise tree-shaped fins (21) and rib-shaped fins (22); the tree-shaped fins (21) are formed on the outer surface of the bottom of the U-shaped body (11), and the rib-shaped fins (22) are formed on the inner surface and the outer surface of the side of the U-shaped body (11) and the outer surface of the box cover (12).

13. The electric cabinet according to claim 12, characterized in that the tree-shaped fins (21) are multiple in number, the tree-shaped fins (21) at the edge are provided with an inner concave part (215), the inner concave part (215) can be pieced together with an inner concave part (215) at the corresponding position of another electric cabinet to form a concave groove for inserting a guide rail, and the two electric cabinets can be connected together side by side through the guide rail.

14. The electric cabinet according to claim 12, characterized in that the tree-shaped fins (21) are plural in number, and the tree-shaped fins (21) at the edge are provided with mounting structures (214), by means of which mounting structures (214) the electric cabinet can be mounted together with the ground or other components.

15. The electrical cabinet according to claim 12, characterized in that at least one of said ribbed fins (22) located on the inner surface of the sides of said U-shaped body (11) is provided with a female structure (223) able to be coupled with a coupling member by means of which the two U-shaped bodies (11) can be coupled together.

16. The electrical cabinet according to claim 1, wherein the connecting portion further comprises a protrusion (225).

17. The electric cabinet according to claim 1, characterized in that the cabinet body (1) and the partition (3) are both of a heat-conducting material.

18. The electric cabinet according to claim 1, wherein the electric cabinet is rectangular in cross section and has a width to length ratio of golden ratio.

19. The electrical cabinet of claim 1, wherein the electrical cabinet is a fanless structure.

20. The electrical cabinet of claim 1, wherein the first component comprises: a main board (4).

21. The electrical cabinet of claim 1, wherein the second component comprises: inductance (5), communication keysets (6), filtering board (7), power strip (8).