CN107529322B

CN107529322B - Electric control box

Info

Publication number: CN107529322B
Application number: CN201710816892.6A
Authority: CN
Inventors: 樊超; 江金源; 黄福豪; 梁荣鑫; 王健; 张羽; 尤英帅; 邹加富
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: 2022-03-29
Anticipated expiration: 2037-09-12
Also published as: CN107529322A

Abstract

The invention discloses an electric cabinet, relates to the field of electric control equipment, and aims to improve the heat dissipation performance of the existing electric cabinet. The electric cabinet comprises a cabinet body, and radiating fins are arranged on the inner surface of the cabinet body. According to the electric cabinet provided by the technical scheme, the radiating fins are also arranged inside the electric cabinet, so that the heat radiating performance of the electric cabinet is better, and the heat radiating requirement of electrical components in the electric cabinet can be met on the premise of not using a fan.

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 electric cabinet is used for installing electrical components and is of a box body structure. In the prior art, the electric cabinet comprises a sheet metal part (or an integral sheet metal injection molding part) and a radiator which are assembled together through mechanical connection.

The inventor finds that at least the following problems exist in the prior art: the existing electric cabinet has the defects of complex structural process, high cost, poor heat dissipation performance and poor grounding performance due to mechanical connection between the radiator and the sheet metal part.

Disclosure of Invention

One of the purposes of the invention is to provide an electric cabinet, which is used for improving the heat dissipation performance of the existing 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 the inner surface of the cabinet body is provided with radiating fins.

In an alternative embodiment, the heat dissipating fins provided on the inner surface of the case body include rib-type fins.

In an alternative embodiment, the heat radiating fins are formed in rows on the inner surface of the case body.

In an alternative embodiment, the box body comprises a U-shaped body and a box cover, the U-shaped body comprises a side part and a bottom part, the heat dissipation fins are arranged on the inner surface of the side part of the U-shaped body, and the box cover is connected with the side part.

In an alternative embodiment, at least one of the fins on the inner surface of the side of the U-shaped body is provided with an internal recess for receiving a connector by which the two U-shaped bodies can be connected together.

In an alternative embodiment, the cross-section of the fillet is C-shaped.

In an alternative embodiment, at least one of the heat dissipation fins located on the inner surface of the side portion of the U-shaped body is provided with a connecting portion for holding the partition plate.

In an alternative embodiment, the outer surface of the tank body is also provided with the heat radiating fins.

In an alternative embodiment, the heat radiating fins provided on the outer surface of the case body include rib-type fins and tree-type fins.

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 alternative embodiments, the branch portion includes two or more layers.

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 arranged in rows on an outer surface of the box body.

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 optional embodiment, the tree-shaped fins are multiple in number, the tree-shaped fins at the edges are provided with concave portions, the concave portions can be spliced with concave portions at corresponding positions of another electric cabinet to form grooves for penetrating guide rails, and the two electric cabinets can be connected together side by side through the guide rails.

In an alternative embodiment, the tank body is of a thermally conductive material.

In an alternative embodiment, the tank body is of aluminium alloy and/or the fins are of aluminium alloy.

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

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.

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

according to the electric cabinet provided by the technical scheme, the radiating fins are also arranged inside the electric cabinet, and the overall radiating performance of the electric cabinet is improved, so that the radiating performance of the electric cabinet is better, and the radiating requirement of electrical components in the electric cabinet is met.

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 cross-sectional structure view of an electric cabinet according to an embodiment of the present invention;

fig. 2 is a schematic view of an electric cabinet inner partition board provided in an embodiment of the present invention installed at a lower position;

fig. 3 is a schematic view of an electric cabinet inner partition board provided in an embodiment of the present invention installed at a higher position;

fig. 4 is a schematic structural view of a partial heat dissipation fin on an inner surface of an electric cabinet according to an embodiment of the present invention.

Reference numerals:

1. a tank body; 2. a heat dissipating fin; 3. a partition plate; 4. a top plate; 11. a U-shaped body; 12. a box cover; 20. a rib-shaped fin; 21. an inner concave portion; 22. a connecting portion; 23. a micro heat dissipation fin; 24. a rib-type heat dissipating fin; 25. an H-shaped heat dissipation fin; 26. a tree-shaped fin; 221. a groove; 261. a trunk portion; 262. a branch part; 263. a top portion; 264. a recess; 265. and (7) mounting the structure.

Detailed Description

The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 4.

Referring to fig. 1, an embodiment of the present invention provides an electric cabinet, including a cabinet body 1, and heat dissipation fins 2 are disposed on an inner surface of the cabinet body 1.

The heat dissipating fins 2 provided on the inner surface of the box body 1 have various structures, such as rib-type fins or other structures.

Referring to fig. 1, the heat radiating fins 2 provided on the inner surface of the case body 1 include rib-type fins. The inner surface of the box body 1 in the embodiment is provided with rib-type fins in various structural forms. For example, the rib-type fins which are staggered in height and the structures which can be connected with other parts are arranged on some rib-type fins, and the like, so that the space on the inner surface of the box body 1 can be utilized to the maximum extent, and the rib-type fins can be directly utilized as connecting pieces, so that the number of connecting parts in the box body 1 is reduced, and the utilization rate of the space in the box body 1 is improved.

Referring to fig. 1, the heat radiating fins 2 located on the inner surface of the tank body 1 are arranged in rows. Namely, the rib-type fins 20 are arranged in a row on the inner surface of the tank body 1.

In this embodiment, the box body 1 adopts the following structure: the box body 1 comprises a U-shaped body 11 and a box cover 12, the U-shaped body 11 comprises a side portion and a bottom portion, the radiating fins 2 are arranged on the inner surface of the side portion of the U-shaped body 11, and the box cover 12 is connected with the side portion.

The rib-shaped fins 20 are integrally extruded with the U-shaped body 11.

Referring to fig. 1, at least one of the heat dissipating fins 2 of the inner surface of the side portion of the U-shaped body 11 is provided with an inner recess 21 for mounting a connector by which the two U-shaped bodies 11 can be connected together.

Above-mentioned technical scheme has set up interior concave part 21, is convenient for hoist and mount the transportation and realize the modularization concatenation to the electric cabinet.

Optionally, the cross-section of the fillet 21 is C-shaped.

In this embodiment, at least one of the heat dissipating fins 2 located on the inner surface of the side portion of the U-shaped body 11 is provided with a connecting portion 22 for holding the partition 3.

The structure of the heat radiating fins 2 on the inner surface of the box body 1 will be described in detail with reference to fig. 1.

The heat radiating fins 2 on the inner surface of the box body 1 comprise rib type fins 20, the rib type fins 20 specifically comprise micro heat radiating fins 23, rib type heat radiating fins 24, rib type fins provided with inner concave parts 21, H type heat radiating fins 25 capable of being connected with the partition plates and rib type fins provided with connecting parts (specifically cross screw grooves) 22 for connecting the partition plates, the rib type fins 20 can increase the internal heat exchange area, and the heat exchange performance between the internal air and the box body is greatly improved.

The existence of the micro radiating fins 23, the rib type radiating fins 24 and the H-shaped radiating fins 25 can facilitate wire arrangement and wire fixation, so that the wire harness is regularly and neatly arranged, and the design of high and low fins ensures that the wire harness is neatly arranged at the low fins and limited at the high fins; and at the later stage, the box body is fixed by a wire fixing hook or a wire fixing buckle. The H-shaped heat dissipation fins 25 are special rib-shaped heat dissipation fins, and can be provided with a C-shaped metal plate.

The micro radiating fins 23 play a role in increasing the radiating area of the inner surface of the electric cabinet to strengthen heat transfer, are convenient for fixing a single wire harness, can select various structures, and have rectangular, triangular, semicircular, elliptical, trapezoidal and the like cross sections. The rib-shaped radiating fins 24 mainly function as fixed-line flat cables, and the outline is preferably consistent with that of the H-shaped radiating fins 25; various configurations can also be selected, with cross-sections that are rectangular, semi-circular, elliptical, etc.

The rib-type heat dissipation fins 24 play a role in fastening positions during the assembly of the box body, for example, the rib-type heat dissipation fins 24 play a role in fastening positions during the assembly of the upper and lower bottom plates of the box body in fig. 4, and the fastening positions need to be processed in a later stage.

The electric cabinet adopting the structure has good processing performance, all the radiating fins 2 on the inner surface are integrally formed, the process is simple, the cost is low, and the grounding performance is excellent. The micro radiating fins 23 and the rib-shaped radiating fins 24 in the electric cabinet are favorable for wire arrangement and wire fixation in the side space in the electric cabinet. The electric cabinet is internally provided with an H-shaped radiating fin 25, so that the electric cabinet is convenient to internally mount. The installation implementation schematic diagram is as shown in fig. 2 and fig. 3, and a C-shaped metal plate (i.e. the partition plate 3) is matched with the H-shaped radiating fins 25 on the side surface of the electric cabinet. During installation, the electric cabinet can directly slide in from the bottom of the electric cabinet without welding, and the sliding groove, the top plate and the bottom plate of the electric cabinet are used for limiting and fixing.

The cross screw groove 221 is formed in the electric cabinet, so that the electric cabinet is convenient to install in the electric cabinet, the installation implementation schematic diagram is shown in fig. 3, a bolt head of a nut or a hexagonal head is pushed into the cross screw groove 221, the partition plate 3 or a through hole of a part needing to be installed penetrates through the bolt or the nut, and the partition plate or the through hole is assembled and fixed with the nut or the hexagonal head bolt which is pushed into the cross screw groove 221.

The electric cabinet is internally provided with an inner concave part (inner screw groove) 21, and through tapping in the inner concave part 21, hoisting and transportation of a hanging ring hook mounted on the electric cabinet can be realized, and modularized splicing can also be realized through a double-end stud or a single-end stud plus a positioning pin.

By adopting the electric cabinet with the structure, the whole heat dissipation performance is better than that of a common electric cabinet, and the electric cabinet can be of a fan-free structure.

Referring to fig. 1, in the present embodiment, the outer surface of the box body 1 is also provided with heat radiating fins 2. This can maximize the heat radiation performance of the tank body 1.

The following describes the structure of the heat radiating fins 2 which can be provided on the outer surface of the box body 1.

Referring to fig. 1, the heat radiating fins 2 provided on the outer surface of the box body 1 include rib-type fins 20 and tree-type fins 26.

As shown in fig. 1, the inner surface and the outer surface of the box body 1 are both provided with rib-type fins 20, the inner rib-type fins are shorter than the outer rib-type fins 20, and the inner rib-type fins are smaller mainly for making the box body have enough space inside to mount electrical components, satisfying the functional requirements of wire fixing and arranging, and simultaneously taking into account the function of internal enhanced heat dissipation.

The structure of the tree fin 26 will be described below.

Referring to fig. 1, the tree fin 26 includes a trunk portion 261 and branch portions 262, the root of the trunk portion 261 being connected to the box body, and the branch portions 262 being connected to the trunk portion 261.

The tree-shaped fins 26 are used as main radiating fins of the electric cabinet, so that the radiating area is large, and the radiating effect is good. Besides the tree-shaped fins 26, the electric cabinet can be provided with radiating fins in other structural forms.

The tree fin 26 may have various configurations, 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. If the branches are curved, the curved direction of each branch may be the same or different, and in this embodiment, the curved directions of the branch parts 262 on the same side of the trunk 261 are the same.

The branch parts 262 may be provided in an arc shape, a straight shape, a single layer or a multi-layer as needed.

Fig. 1 shows a case where a single-stage, multi-layer branch portion 262 is provided, and a plurality of branch portions 262 are formed on each trunk portion 261, and these branch portions 262 are all of the first stage. It is understood that the branch portion 262 can be provided in multiple levels, such as a second level of branch portion 262, a third level, or even more than one level of branch portion 262, as shown in FIG. 1, on the branch portion 262. When the multi-stage branch portion 262 is provided, the size of the entire tree-shaped fin 26 is larger, and the heat radiation area is also larger. The number of the branch layers and the total height of the tree-shaped fins 26 can be determined according to the heat dissipation area required by the electric cabinet.

Referring to fig. 1, the branch portion 262 includes two or more layers.

In this embodiment, the branch parts 262 include two or more layers, and fig. 1 shows three layers of branch parts 262 on each trunk part 261. Under the unchangeable prerequisite of electric cabinet overall dimension, multilayer branch of trees portion 262 can be so that heat radiating area is bigger, and the radiating effect is better.

Referring to fig. 1, the tree fin 26 further includes a top portion 263, the top portion 263 being connected to the tip of the trunk portion 261, the top portion 263 having a plane with a size larger than the tip of the trunk portion 261.

The top 263 is perpendicular to the trunk 261 and parallel to the heat dissipation bottom surface of the box body, and the above structure enables the external heat dissipation fins of the electric cabinet to be well protected, and the heat dissipation fins are not easy to scratch a user and damage the heat dissipation fins.

Referring to fig. 1, the tree fins 26 are plural, and the top 263 of each tree fin 26 is flush. The structure ensures that the tree-shaped fins 26 do not form convex tips, and is convenient for placing an electric cabinet.

Optionally, the trunk portion 261 tapers from root to tip. The tree-shaped fin 26 with the structure is stable and reliable in structure and light in weight.

Alternatively, the tree fins 26 are provided in rows on the outer surface of the tank body. All the tree-shaped fins 26 are integrally extruded with the U-shaped body, so that all the tree-shaped fins 26 can be formed by one-time processing, and the processing efficiency is high.

Referring to fig. 1, further, the tree-shaped fins 26 are plural in number, and the tree-shaped fins 26 at the edge are provided with mounting structures 265, through which the electric cabinet can be mounted with the ground or other components.

The mounting structure may be a hole, a groove, or the like. After the installation structure 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.

Referring to fig. 1, the tree-shaped fins 26 are multiple in number, the tree-shaped fins 26 located at the edges are provided with concave portions 264, the concave portions 264 can be spliced with the concave portions 264 corresponding to another electric cabinet to form grooves for penetrating through guide rails, and the two electric cabinets can be connected together side by side through the guide rails.

Through the recess, can link together a plurality of independent electric cabinets for each electric cabinet is difficult for shifting, has guaranteed to place the stability of back electric cabinet position.

In this embodiment, the electric cabinet is a fanless structure. The tree fin 26 is composed of a top 263, a branch part 262, and a trunk part 261. The tree part 261 is perpendicular to the surface of the box body, serves as a trunk of the tree-shaped fin 26 and takes a main heat dissipation task; the trunk 261 is thick to thin from the bottom to the top 263. The branch parts 262 grow from the bottom surface, and are spread to both sides and form a certain radian, the number of layers of the branch parts 262 is determined by specific conditions, the higher the heat dissipation requirement is, the number of layers of the branch parts 262 is increased, and fig. 1 shows a three-layer branch part 262 structure. The top 263 is perpendicular to the trunk 261 and parallel to the heat dissipating bottom surface.

Above-mentioned structure, tree-shaped fin 26 has bigger heat radiating area, more is favorable to the heat dissipation at fin root branch portion 262, and its radiating effect is better than traditional radiating fin, and the supplementary heat dissipation of plus side radiating fin has very big improvement than the heat dispersion of current electric cabinet. The 360-degree dead-angle-free heat dissipation design of the all-aluminum electric cabinet can be realized. The tree-shaped fins 26 are simple and attractive, and the shape matched with the golden ratio of the whole electric cabinet is more attractive.

In this embodiment, the case body 1 is made of a heat conductive material. The box body 1 includes a U-shaped body 11 and a box cover 12, and both the U-shaped body 11 and the box cover 12 are made of a heat conductive material. The material of all the radiating fins 2 on the U-shaped body 11 is the same as that of the U-shaped body 11, and the material of all the radiating fins 2 on the box cover 12 is the same as that of the box cover 12.

It should be noted that the box body 1 includes two end plates in addition to the U-shaped body 11 and the box cover 12, the U-shaped body 11 has a structure with three open sides, and the box cover 12 and the two end plates are used for blocking the opening to form the box body 1.

Specifically, the tank body 1 is of aluminum alloy and/or the radiating fins 2 are of aluminum alloy.

In this embodiment, the case body 1 and the heat radiating fins 2 are integrally formed by extrusion. Specifically, all the heat radiating fins 2 provided on the U-shaped body 11 are integrally press-molded with the U-shaped body 11, and all the heat radiating fins 2 provided on the case cover 12 are integrally press-molded with the case cover 12.

In this embodiment, the cross section of the electric cabinet is rectangular, and the ratio of the width to the length is golden ratio. The ratio of the total width of the electric cabinet body to the total length is golden ratio, namely 0.618.

In this embodiment, the electric cabinet is a fanless structure.

Above-mentioned technical scheme, electric cabinet processing performance is good, and all fin integrated into one piece, simple process, low cost, and grounding performance is splendid.

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. The electric cabinet is characterized by comprising a cabinet body (1), wherein heat radiating fins (2) are arranged on the inner surface and the outer surface of the cabinet body (1); the cross section of the electric cabinet is rectangular, and the ratio of the width to the length is golden;

the box body (1) comprises a U-shaped body (11) and a box cover (12); the radiating fins (2) arranged on the inner surface of the box body (1) comprise rib-shaped fins (20) so as to facilitate wire arrangement and wire fixation; at least one heat radiating fin (2) positioned on the inner surface of the side part of the U-shaped body (11) is provided with an inner concave part (21) for installing a connecting piece, and the two U-shaped bodies (11) can be connected together through the connecting piece; the cross section of the inner concave part (21) is C-shaped;

the radiating fins (2) arranged on the outer surface of the box body (1) comprise tree-shaped fins (26); the tree-shaped fins (26) are multiple in number; the tree-shaped fins (26) at the edge are provided with concave parts (264), the concave parts (264) are configured to be spliced with concave parts (264) at corresponding positions of the other electric cabinets to form grooves for penetrating through guide rails, and the two electric cabinets are connected together side by side through the guide rails;

all the radiating fins (2) positioned on the U-shaped body (11) and the U-shaped body (11) are integrally extruded and formed, and all the radiating fins (2) positioned on the box cover (12) and the box cover (12) are integrally extruded and formed.

2. The electric cabinet according to claim 1, characterized in that the heat dissipating fins (2) are formed in rows on the inner surface of the cabinet body (1).

3. The electric cabinet according to claim 1, characterized in that the U-shaped body (11) comprises side portions and a bottom portion, the heat dissipating fins (2) are provided on the inner surface of the side portions of the U-shaped body (11), and the box cover (12) is connected to the side portions.

4. The electric cabinet according to claim 3, characterized in that at least one of the heat dissipating fins (2) located on the inner surface of the side of the U-shaped body (11) is provided with a connecting portion (22) for retaining the partition (3).

5. The electric cabinet according to claim 1, characterized in that the heat dissipating fins (2) provided on the outer surface of the cabinet body (1) further comprise rib-type fins (20).

6. The electrical cabinet according to claim 1, characterized in that the tree-shaped fins (26) comprise a trunk portion (261) and branch portions (262), the root portion of the trunk portion (261) being connected to the cabinet body (1), the branch portions (262) being connected to the trunk portion (261).

7. The electrical cabinet according to claim 6, wherein the branch part (262) comprises two or more layers.

8. The electrical cabinet according to claim 6, characterized in that the tree-shaped fin (26) further comprises a top portion (263), the top portion (263) being connected to the tip of the tree portion (261), the top portion (263) having a plane with a size larger than the tip of the tree portion (261).

9. The electrical cabinet according to claim 1, characterized in that the tree-shaped fins (26) are arranged in rows on the outer surface of the cabinet body (1).

10. The electric cabinet according to claim 1, characterized in that the tree-shaped fins (26) are plural in number, and the tree-shaped fins (26) at the edge are provided with mounting structures (265), by means of which mounting structures (265) the electric cabinet can be mounted together with the ground or other components.

11. The electric cabinet according to claim 1, characterized in that the cabinet body (1) is of a heat conducting material.

12. The electric cabinet according to claim 1, characterized in that the cabinet body (1) is of aluminium alloy and/or the cooling fins (2) are of aluminium alloy.

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

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