Lightweight cabinet skeleton structure

Abstract

The present application provides a kind of lightweight cabinet skeleton structure, by corresponding end face of cover plate and side plate corresponding interface, corresponding matching hole is set, the main fastening connection of cover plate and side plate is realized through the butt joint between corresponding matching hole, simultaneously still by corresponding welding groove being set to the outer edge of the matching place between cover plate and side plate, so as to carry out corresponding welding fixation;Since cabinet skeleton is formed by the interface of multiple cover plates and multiple side plates, thus it is unnecessary to carry out integral casting forming to cabinet skeleton, avoid the drawbacks that lightweight does not reach the standard, and since the fastening cooperation between the matching hole on cover plate and side plate is mainly used in the present structure, less welding cooperation is supplemented, to realize the fastening fixation between cover plate and side plate, avoid the need for a large amount of heat input in the welding process of cabinet, and then realize the deformation controllable of cabinet.

Description

Technical Field

[0001] This invention belongs to the field of communication machinery manufacturing, and in particular relates to a lightweight cabinet frame structure. Background Technology

[0002] Lightweight rack frames are large, thin-walled cavity structures that house various rack-mounted electronic units. To meet electromagnetic shielding requirements, rack frames are typically made of aluminum alloy through integral casting or assembly and welding. As the carrier for the rack-mounted units, the forming process places high demands on the internal dimensions, parallelism, perpendicularity, and load-bearing strength of the rack frame.

[0003] In existing technologies, methods such as one-piece casting, multi-part assembly, or 3D printing are commonly used. One-piece casting includes wooden mold casting and steel mold casting. Wooden mold casting typically suffers from large draft angles, excessive cabinet wall thickness, and unsatisfactory lightweight performance. Steel molds are expensive, require highly skilled mold designers, and have long production cycles. In multi-part assembly, individual components are usually formed by cutting, resulting in low material utilization, large processing volume, and low production efficiency. To ensure welding strength, double-sided beveling is required at cabinet component joints, leading to numerous welds, large beveling dimensions, high welding heat, uncontrollable cabinet deformation, and the need for specialized tooling for clamping, resulting in inconsistent weld quality. 3D printing, on the other hand, has high production costs and does not meet the needs of mass production.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0005] The technical problem to be solved by this invention is how to meet the requirements of lightweighting and minimize welding heat during the manufacturing process of the cabinet frame, so as to ensure that the deformation of the cabinet is controllable.

[0006] The present invention adopts the following technical solution:

[0007] In a first aspect, a lightweight cabinet frame structure includes: at least two cover plates 1 and at least two side plates 2, wherein:

[0008] The cover plate 1 is connected to two side plates 2 on both sides, and is connected to another cover plate 1 through the side plates 2;

[0009] The cover plate 1 is provided with first mating holes 11 on both sides, and the side plate 2 is provided with second mating holes 21 at both the upper and lower ends. The first mating holes 11 and the second mating holes 21 are mated with a connector to realize the connection between the cover plate 1 and the side plate 2.

[0010] A welding bevel 3 is provided on the outer side of the mating position between the cover plate 1 and the side plate 2. The welding bevel 3 is used to fill the welding material and weld the cover plate 1 and the side plate 2 together.

[0011] Preferably, the first mating hole 11 includes a first mating hole A111 and a first mating hole B112, wherein:

[0012] The inner side of the cover plate 1 is provided with mating steps 12 on both sides, and the mating steps 12 are spaced apart from the edges of the cover plate 1 by steps 13.

[0013] The first mating hole A111 is provided at the spacer step 13, and the first mating hole B112 is provided on the outer wall of the mating step 12;

[0014] The first mating hole A111 extends from the inner side of the cover plate 1 to the outer side of the cover plate 1.

[0015] Preferably, the second mating hole 21 includes a second mating hole A211 and a second mating hole B212, wherein:

[0016] The second mating hole A211 is provided at the top surface of the side plate 2, and the second mating hole B212 is provided at the inner side surface of the side plate 2, and the second mating hole B212 extends from the inner side surface of the side plate 2 to the outer side surface of the side plate 2.

[0017] Preferably, the spacer step 13 is used to abut against the top surface of the side plate 2, and the first mating hole A111 and the second mating hole A211 are mated by a connector; the outer wall of the mating step 12 abuts against the inner side surface of the side plate 2, and the first mating hole B112 and the second mating hole B212 are mated by a connector.

[0018] Preferably, except for the two outermost first mating holes A111 and / or first mating holes B112, according to the arrangement order of the first mating holes A111 and B112 on the cover plate 1, the Nth first mating hole A111 is located at the middle position of the horizontal projection of the Nth first mating hole B112 and the N+1th first mating hole B112, and the Nth first mating hole B112 is located at the middle position of the horizontal projection of the N-1th first mating hole A111 and the Nth first mating hole A111.

[0019] Excluding the second mating holes A211 and B212 on the outermost sides, according to the arrangement order of the second mating holes A211 and B212 on the side plate 2, the Nth second mating hole A211 is located at the middle position of the horizontal projection of the Nth second mating hole B212 and the N+1th second mating hole B212, and the Nth second mating hole B212 is located at the middle position of the horizontal projection of the N-1th second mating hole A211 and the Nth second mating hole A211.

[0020] The N > 1;

[0021] By staggering the first mating hole A111 and the first mating hole B112, and by staggering the second mating hole A211 and the second mating hole B212, the degree of deformation during welding and fixing between the cover plate 1 and the side plate 2 is reduced.

[0022] Preferably, a fixing boss 14 is provided on the outer side wall of the mating step 12, and a limiting groove 22 is provided on the inner side of the side plate 2, with the fixing boss 14 located inside the limiting groove 22.

[0023] Preferably, a welding bevel 3 is provided on the outer side of the mating position between the cover plate 1 and the side plate 2, specifically including:

[0024] The outer edges of both sides of the cover plate 1 are provided with first inclined grooves 31, and the inclined direction of the first inclined grooves 31 is towards the outside of the cover plate 1.

[0025] A second inclined groove 32 is provided at the outer periphery of the upper and lower ends of the side plate 2, and the inclined direction of the second inclined groove 32 is towards the outside of the side plate 2.

[0026] The first inclined groove 31 and the second inclined groove 32 are aligned and connected to each other, forming the welding bevel 3.

[0027] Preferably, a weight-reducing groove 4 is provided on the inner wall of the side plate 2 and / or the cover plate 1.

[0028] Preferably, at least two connecting plates 5 are provided between the two side plates 2, one end of the connecting plate 5 is connected to the side of the side plate 2, and the other end of the connecting plate 5 is connected to the side of the other side plate 2.

[0029] Preferably, one of the cover plates 1 is provided with a wire groove hole 15.

[0030] This invention provides a lightweight cabinet frame structure. Corresponding mating holes are provided on the end faces of the cover plate and side plates where they meet. The main fastening connection between the cover plate and side plates is achieved through the mating of these holes. Additionally, welding bevels are provided on the outer edges of the mating points between the cover plate and side plates for welding fixation. Since the cabinet frame is composed of multiple cover plates and side plates, there is no need for integral casting of the cabinet frame, avoiding the drawbacks of failing to meet lightweight requirements. Furthermore, because this structure primarily relies on the fastening connections between the mating holes on the cover plate and side plates, with minimal welding, the fastening between the cover plate and side plates is achieved, avoiding the need for excessive heat input during welding and thus ensuring controllable deformation of the cabinet. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0032] Figure 1 This is a schematic diagram of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the cover plate of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the side panel of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0035] Figure 4 This is a partial schematic diagram of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the inner side of the cover plate of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the inner side of the side panel of a lightweight cabinet frame structure provided in an embodiment of the present invention;

[0038] Figure 7 This is a partial schematic diagram of another lightweight cabinet frame structure provided in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of another lightweight cabinet frame structure provided in an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of another lightweight cabinet frame structure provided in an embodiment of the present invention;

[0041] The diagram numbers are as follows:

[0042] Cover plate 1; First mating hole 11; First mating hole A111; First mating hole B112; Mating step 12; Spacer step 13; Fixed boss 14; Through-line groove hole 15; Side plate 2; Second mating hole 21; Second mating hole A211; Second mating hole B212; Limiting groove 22; Welding bevel 3; First inclined groove 31; Second inclined groove 32; Weight reduction groove 4; Connecting plate 5. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0046] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "coupled" can refer to an electrical connection that enables signal transmission.

[0047] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Example 1:

[0049] Embodiment 1 of the present invention provides a lightweight cabinet frame structure, including: as follows Figure 1 As shown, there are at least two cover plates 1 and at least two side plates 2, wherein:

[0050] The cover plate 1 is connected to two side plates 2 on both sides, and is connected to another cover plate 1 through the side plates 2.

[0051] like Figure 1 As shown, in this embodiment, two cover plates 1 and two side plates 2 are included. The two cover plates 1 are respectively disposed at the upper and lower ends, and the two side plates 2 are respectively disposed on both sides. The cover plate 1 includes an upper cover plate and a lower cover plate. The two sides of the upper cover plate are respectively connected to the upper ends of the two side plates 2, and the two sides of the lower cover plate are respectively connected to the lower ends of the two side plates 2, thereby obtaining the frame structure of the cabinet. The two sides of the cover plate 1 refer to the positions facing the side of the cabinet.

[0052] like Figure 1 As shown, it is worth mentioning that since each cover plate 1 and each side plate 2 are independent components before being fastened together, this embodiment does not require the cabinet to be cast as a whole. Only each cover plate 1 and side plate 2 needs to be cast separately. In the prior art, the overall casting process usually results in a large draft angle and excessive cabinet wall thickness, which leads to the overall cabinet weight exceeding the standard and failing to meet the requirements of lightweighting. However, in this embodiment, the separate casting of each component can ensure the corresponding wall thickness of each component, thereby ensuring that the overall cabinet can meet the lightweighting standard after assembly.

[0053] It is important to note that when assembling a cabinet using multiple components, welding is usually required at the joints to ensure a secure connection between the components. To guarantee weld strength, double-sided beveling is necessary at these joints, and the beveling dimensions must be large enough to allow sufficient solder to be injected for welding. However, excessive welding heat can cause cabinet deformation, the degree of which is often uncontrollable. Furthermore, the assembly of different components requires the use of appropriate tooling fixtures, but the control of these fixtures cannot be absolutely precise, leading to inconsistent final weld quality.

[0054] like Figure 2 and Figure 3 As shown, the cover plate 1 has a first mating hole 11 on both sides, and the side plate 2 has a second mating hole 21 at both the upper and lower ends. The first mating hole 11 and the second mating hole 21 are engaged to connect the cover plate 1 and the side plate 2.

[0055] like Figure 2 and Figure 3As shown, in this embodiment, the number of the first mating hole 11 and the second mating hole 21 is greater than or equal to 2. The first mating hole 11 is provided on the two end faces and / or inner surfaces of the cover plate 1, while the second mating hole 21 is provided on the upper and lower end faces of the side plate 2, as well as on the inner surfaces near the upper and lower ends. When the cover plate 1 and the side plate 2 are mated, the corresponding first mating hole 11 and second mating hole 21 correspond to each other; or steps are provided on both sides of the cover plate 1, and the first mating hole 11 is provided on the steps, and the steps are mated with the end faces of the side plate 2, thereby limiting the side plate 2 in the vertical and horizontal directions, and fixing it through the mating holes.

[0056] like Figure 2 and Figure 3 As shown, when the cover plate 1 is connected to the side plate 2, the first mating hole 11 on the cover plate 1 corresponds to the second mating hole 21 on the side plate 2, and they are fixed together by corresponding connectors. When screws are used for mating, the first mating hole 11 and / or the second mating hole 21 are threaded holes. When the first mating hole 11 and the second mating hole 21 are mated by connectors, the mating method is an interference fit. In this embodiment, the connector can be a pin or a screw.

[0057] like Figure 4 As shown, a welding bevel 3 is provided on the outer side of the mating position between the cover plate 1 and the side plate 2. The welding bevel 3 is used to fill the welding material and weld the cover plate 1 and the side plate 2 together.

[0058] like Figure 4 As shown, in this embodiment, the fastening and fixing of the overall structural components mainly relies on the butt joint between multiple mating holes, supplemented by welding with solder. Therefore, this embodiment does not require setting too many welding bevels 3 for welding and fixing. Only the corresponding welding bevels 3 need to be set on the outer edge of the mating position between the cover plate 1 and the side plate 2 to ensure the stability of the overall structure of the cabinet frame. Since the number of welds required in the overall structure is reduced, and furthermore, the depth and width of the welding bevels 3 set in this embodiment can be reduced to a predetermined extent, the lightweight cabinet frame structure provided in this embodiment can effectively reduce the heat input during welding and fixing, thereby achieving controllable deformation of the cabinet. Under the premise of ensuring the reliable strength of the cabinet frame, the production efficiency of the cabinet frame is improved, the lightweight requirements of the cabinet frame are met, and the heat input and deformation are controllable when the overall structure is spliced.

[0059] In this embodiment, corresponding mating holes are provided on the end faces of the corresponding contact plates 1 and 2. The main fastening connection between the cover plate 1 and the side plate 2 is achieved through the mating of the corresponding mating holes. At the same time, corresponding welding bevels 3 are provided on the outer edge of the mating area between the cover plate 1 and the side plate 2 for welding fixation. Since the cabinet frame is composed of multiple cover plates 1 and multiple side plates 2 connected together, there is no need to cast the cabinet frame as a whole, avoiding the disadvantage of not meeting the weight reduction standard. Furthermore, since this structure mainly relies on the fastening connection between the mating holes on the cover plate 1 and the side plate 2, and uses less welding connection as a supplement to achieve the fastening and fixation between the cover plate 1 and the side plate 2, it avoids the need for a large amount of heat input during the welding process of the cabinet, thereby achieving controllable deformation of the cabinet.

[0060] In this embodiment, because existing technologies require the use of corresponding tooling fixtures to clamp components in their respective positions and assemble them, and because the control of these fixtures cannot be absolutely precise, resulting in unstable welding quality, this embodiment addresses this by providing corresponding mating steps 12 or mating grooves on the cover plate 1 and / or side plate 2. This limits the components during the assembly process, and the mating holes are located on the surfaces of the corresponding mating steps 12 or mating grooves, thereby achieving precise docking between the components. Therefore, this embodiment also involves the following design:

[0061] like Figure 5 As shown, the first mating hole 11 includes a first mating hole A111 and a first mating hole B112, wherein:

[0062] The inner side of the cover plate 1 is provided with mating steps 12 on both sides, and the mating steps 12 are spaced apart from the edges of the cover plate 1 by steps 13.

[0063] The first mating hole A111 is provided at the spacer step 13, and the first mating hole B112 is provided on the outer wall of the mating step 12;

[0064] The first mating hole A111 extends from the inner side of the cover plate 1 to the outer side of the cover plate 1.

[0065] like Figure 5As shown, in this embodiment, the inner side of the cover plate 1 can be: the side of the cover plate 1 facing the inside of the cabinet after it is spliced ​​with the side plate 2; the mating steps 12 are located near the edges of both sides of the cover plate 1 and are parallel to the edges of both sides of the cover plate 1. In this embodiment, at least two mating steps 12 are provided on the inner side of one cover plate 1; wherein, the mating steps 12 are a certain distance away from the edges of both sides of the cover plate 1. In this embodiment, the width of the interval steps 13 needs to be greater than or equal to the width of the upper and lower end faces of the side plate 2, so as to ensure that the upper and lower end faces of the side plate 2 can stably abut against the interval steps 13.

[0066] In this embodiment, the spacer step 13 is provided with a plurality of first mating holes A111, and all the first mating holes A111 are arranged at equal intervals along a straight line; the outer wall of the mating step 12 is provided with a plurality of first mating holes B112, and all the first mating holes B112 are arranged at equal intervals along a straight line.

[0067] like Figure 6 As shown, the second mating hole 21 includes a second mating hole A211 and a second mating hole B212, wherein:

[0068] The second mating hole A211 is provided at the top surface of the side plate 2, and the second mating hole B212 is provided at the inner side surface of the side plate 2, and the second mating hole B212 extends from the inner side surface of the side plate 2 to the outer side surface of the side plate 2.

[0069] like Figure 6 As shown, in this embodiment, a plurality of second mating holes A211 are provided at the top surface of the side plate 2, and all the second mating holes A211 are arranged at equal intervals along a straight line; a plurality of second mating holes B212 are provided at the inner surface of the side plate 2, and all the second mating holes B212 are arranged at equal intervals along a straight line.

[0070] like Figure 5 and Figure 6 As shown, the spacer step 13 is used to abut against the top surface of the side plate 2, and the first mating hole A111 and the second mating hole A211 are mated by a connector; the outer wall of the mating step 12 abuts against the inner side surface of the side plate 2, and the first mating hole B112 and the second mating hole B212 are mated by a connector.

[0071] like Figure 5 and Figure 6As shown, it should be noted that when the upper and lower ends of the side plate 2 abut against the spacer step 13, since the upper and lower ends of the side plate 2 are completely abutted and blocked, while the back of the spacer step 13 of the side plate 2 is still exposed, the first mating hole A111 extends from the inner side of the cover plate 1 to the outer side of the cover plate 1. The connector is inserted through the first mating hole A111 on the outer side of the cover plate 1, passes through the first mating hole A111, and enters the second mating hole A211, thereby mating and fixing the first mating hole A111 and the second mating hole A211. When the outer wall of the mating step 12 abuts against the side plate 2... The inner sides of the two sides abut against each other. At this time, the outer side wall of the mating step 12 is completely abutted and blocked. Since the mating step 12 is inside the cabinet, it is difficult to interact directly with the mating step 12 after the cabinet is assembled. The outer side wall of the side plate 2 is still on the outside. The second mating hole B212 passes through the inner side of the side plate 2 and the outer side of the side plate 2. The connector can be inserted through the second mating hole B212 on the outer side of the side plate 2, and enter the first mating hole B112 after passing through the second mating hole B212, thereby making the first mating hole B112 and the second mating hole B212 fit together and fix.

[0072] like Figure 5 and Figure 6 As shown in the figure, the connectors of the first mating hole A111 and the second mating hole A211 need to be inserted vertically, while the connectors of the first mating hole B112 and the second mating hole B212 need to be inserted horizontally. Therefore, to avoid positional conflicts between the two connectors in different directions during installation, and because the welding position is the position with the highest deformation when the cover plate 1 and the side plate 2 are welded together, this embodiment also involves the following design to further alleviate the deformation of the cover plate 1 and the side plate 2:

[0073] like Figure 5 and Figure 6As shown, excluding the two outermost first mating holes A111 and / or B112, according to the arrangement order of the first mating holes A111 and B112 on the cover plate 1, the Nth first mating hole A111 is located at the midpoint of the horizontal projection of the Nth first mating hole B112 and the (N+1)th first mating hole B112, and the Nth first mating hole B112 is located at the midpoint of the horizontal projection of the (N-1)th first mating hole A111 and the Nth first mating hole A111. Excluding the second mating holes A211 and B212 on the outermost sides, according to the arrangement order of the second mating holes A211 and B212 on the side plate 2, the Nth second mating hole A211 is located at the midpoint of the horizontal projection of the Nth second mating hole B212 and the (N+1)th second mating hole B212, and the Nth second mating hole B212 is located at the midpoint of the horizontal projection of the (N-1)th second mating hole A211 and the Nth second mating hole A211; where N > 1.

[0074] By staggering the first mating hole A111 and the first mating hole B112, and by staggering the second mating hole A211 and the second mating hole B212, the degree of deformation during welding and fixing between the cover plate 1 and the side plate 2 is reduced.

[0075] like Figure 5 and Figure 6 As shown in this embodiment, it can be seen that the first mating holes A111 and / or the first mating hole B on both sides, as well as the second mating holes A211 and B212 on both sides, do not have other mating holes on adjacent sides. Therefore, apart from the mating holes on both sides, the remaining mating holes are numbered according to the arrangement order. The "Nth" can represent any mating hole other than the mating holes on both sides. Due to the staggered arrangement of the first mating holes A111 and B112, and the staggered arrangement of the second mating holes A211 and B212, at the welding bevel 3 of the cover plate 1 and the side plate 2, the first mating holes A111 and A211, through the connection of the connector, tighten and limit the welding bevel 3 in the vertical direction, reducing the deformation of the cover plate 1 and the side plate 2 around the welding bevel 3 in the vertical direction. Meanwhile, the first mating holes B112 and B212, through the connection of the connector, tighten and limit the welding bevel 3 in the horizontal direction, reducing the deformation of the cover plate 1 and the side plate 2 around the welding bevel 3 in the horizontal direction. In this embodiment, by staggering the tightening and limiting in the vertical and horizontal directions, and by closely spaced the mating holes, the tightening strength of the welding bevel 3 around the periphery is further improved, thereby further suppressing the degree of deformation at the periphery of the welding bevel 3 of the cover plate 1 and the side plate 2.

[0076] It can be seen that the first mating hole A111 and the first mating hole B112 are located at opposite intervals in the horizontal direction; and the second mating hole A211 and the second mating hole B212 are also located at opposite intervals in the horizontal direction.

[0077] On the other hand, in order to further improve the tightness of the splicing between the cover plate 1 and the side plate 2, this embodiment also needs to set other fasteners on the top cover and the side plate 2 to further improve the tight connection between the cover plate 1 and the side plate 2.

[0078] like Figure 5 and Figure 6 As shown, a fixing boss 14 is also provided on the outer side wall of the mating step 12, and a limiting groove 22 is also provided on the inner side of the side plate 2, with the fixing boss 14 located inside the limiting groove 22.

[0079] like Figure 5 and Figure 6 As shown, in this embodiment, the outer wall of the mating step 12 is provided with two fixed protrusions 14, which are arranged side by side. The inner side of the corresponding side plate 2 is provided with two limiting grooves 22, which are arranged side by side.

[0080] Similarly, the fixing boss 14 can be set on the inner side of the side plate 2, while the limiting groove 22 is set on the outer side wall of the mating step 12.

[0081] like Figure 7 As shown, a welding bevel 3 is provided on the outer side of the mating position between the cover plate 1 and the side plate 2, specifically including:

[0082] The cover plate 1 has a first inclined groove 31 at the outer edge of both sides, and the inclined direction of the first inclined groove 31 is towards the outside of the cover plate 1; the side plate 2 has a second inclined groove 32 at the outer edge of the upper and lower ends, and the inclined direction of the second inclined groove 32 is towards the outside of the side plate 2; the first inclined groove 31 and the second inclined groove 32 are connected to each other to form the welding bevel 3.

[0083] like Figure 7 As shown, the first inclined groove 31 is located on both sides of the cover plate 1 and extends to the ends of the mating steps 12; while the second inclined groove 32 is located at the upper and lower edges of the side plate 2 and extends to the upper ends of the steps on both sides of the side plate 2, for mating with the first inclined groove 31 of the cover plate 1, thereby ensuring that all outer edges where the cover plate 1 and the side plate 2 meet are the welding bevels 3. The welding bevels are used to fill the weld metal, thereby performing the corresponding welding.

[0084] It is worth mentioning that in the prior art, a welding bevel 3 is usually set at the inner edge where the cover plate 1 and the side plate 2 meet, so that the inner and outer parts of the connection position of the cover plate 1 and the side plate 2 are welded at the same time to ensure the joint strength. However, in this embodiment, since the middle part between the cover plate 1 and the side plate 2 is structurally fixed by the cooperation between the corresponding pin hole connector and the limiting groove 22 of the fixing boss 14, there is no need to set the corresponding welding bevel at the inner edge where the cover plate 1 and the side plate 2 meet. This avoids excessive welding process during splicing, reduces the corresponding heat input, and makes the overall deformation of the structure controllable.

[0085] like Figure 8 As shown, it is also worth mentioning that, in order to further reduce the weight of the structure, weight-reducing grooves 4 are provided on the inner sidewalls of the side plate 2 and / or cover plate 1.

[0086] like Figure 8 As shown, in this embodiment, the weight-reducing grooves 4 on the inner wall of the side plate 2 are rectangular and arrayed on the inner wall of the side plate 2; the weight-reducing grooves 4 on the inner wall of the cover plate 1 are set according to the actual situation on the cover plate 1. In this embodiment, the top cover plate 1 is also provided with a cable routing hole 15. The cable routing hole 15 is used to set a connector plate. The side of the connector plate facing the inside of the cabinet is used to connect with the wiring in the cabinet, and the side of the connector plate facing the outside of the chassis is used to connect with the external wiring. Therefore, the weight-reducing grooves 4 need to be set around the cable routing hole and avoid the position of the cable routing hole 15; while the lower cover plate has a weight-reducing groove 4 at the center of the inner wall, and the other weight-reducing grooves 4 are set around the central weight-reducing groove 4.

[0087] like Figure 9 As shown, at least two connecting plates 5 are also provided between the two side plates 2. One end of the connecting plate 5 is connected to the side of the side plate 2, and the other end of the connecting plate 5 is connected to the side of the other side plate 2.

[0088] like Figure 9 As shown, the connecting plate 5 is disposed on the back of the cabinet. The connecting plate 5 serves two purposes: firstly, to stabilize the cabinet frame structure, and secondly, to divide the cabinet into overall layers. In this embodiment, as... Figure 9 As shown, the two connecting plates 5 divide the entire cabinet into three layers for setting up different devices.

[0089] It should be noted that the inner surface of the connecting plate 5 in this embodiment can also be provided with corresponding weight-reducing grooves 4, which are arranged side by side or in an array on the inner wall of the connecting plate 5.

[0090] Example 2:

[0091] Based on Embodiment 1, Embodiment 2 of the present invention provides another lightweight cabinet frame structure, including: at least two cover plates 1 and at least two side plates 2, wherein:

[0092] The cover plate 1 is connected to two side plates 2 on both sides, and is connected to another cover plate 1 through the side plates 2.

[0093] In this embodiment, two cover plates 1 and two side plates 2 are included. The two cover plates 1 are respectively disposed at the upper and lower ends, and the two side plates 2 are respectively disposed on both sides. The cover plate 1 includes an upper cover plate and a lower cover plate. The two sides of the upper cover plate are respectively connected to the upper ends of the two side plates 2, and the two sides of the lower cover plate are respectively connected to the lower ends of the two side plates 2, thereby obtaining the frame structure of the cabinet. The two sides of the cover plate 1 refer to the positions facing the side of the cabinet.

[0094] It is worth mentioning that since each cover plate 1 and each side plate 2 are independent components before they are fastened together, this embodiment does not require the cabinet to be cast as a whole. Only each cover plate 1 and side plate 2 needs to be cast separately. In the prior art, the overall casting process usually results in a large draft angle and excessive cabinet wall thickness, which leads to the overall cabinet weight exceeding the standard and failing to meet the requirements of lightweighting. However, in this embodiment, the individual casting of each component can ensure the corresponding wall thickness of each component, thereby ensuring that the overall cabinet can meet the lightweighting standard after assembly.

[0095] It is important to note that when assembling a cabinet using multiple components, welding is usually required at the joints to ensure a secure connection between the components. To guarantee weld strength, double-sided beveling is necessary at these joints, and the beveling dimensions must be large enough to allow sufficient solder to be injected for welding. However, excessive welding heat can cause cabinet deformation, the degree of which is often uncontrollable. Furthermore, the assembly of different components requires the use of appropriate tooling fixtures, but the control of these fixtures cannot be absolutely precise, leading to inconsistent final weld quality.

[0096] The cover plate 1 has a first mating hole 11 on both sides, and the side plate 2 has a second mating hole 21 at both the upper and lower ends. The first mating hole 11 and the second mating hole 21 are engaged to connect the cover plate 1 and the side plate 2.

[0097] In this embodiment, the number of the first mating hole 11 and the second mating hole 21 is greater than or equal to 2. The first mating hole 11 is provided on the two end faces and / or inner surfaces of the cover plate 1, while the second mating hole 21 is provided on the upper and lower end faces of the side plate 2, as well as on the inner surfaces near the upper and lower ends. When the cover plate 1 and the side plate 2 are mated, the corresponding first mating hole 11 and second mating hole 21 correspond to each other; or steps are provided on both sides of the cover plate 1, and the first mating hole 11 is provided on the steps, and the steps are mated with the end faces of the side plate 2, thereby limiting the side plate 2 in the vertical and horizontal directions, and fixing it through the mating holes.

[0098] When the cover plate 1 is connected to the side plate 2, the first mating hole 11 on the cover plate 1 corresponds to the second mating hole 21 on the side plate 2, and they are fixed together by corresponding connectors. When screws are used for mating, the first mating hole 11 and / or the second mating hole 21 are threaded holes. When the first mating hole 11 and the second mating hole 21 are mated by connectors, the mating method is an interference fit.

[0099] A welding bevel 3 is provided on the outer side of the mating position between the cover plate 1 and the side plate 2. The welding bevel 3 is used to fill the welding material and weld the cover plate 1 and the side plate 2 together.

[0100] Since the overall structural components in this embodiment are fastened primarily by the butt joint between multiple mating holes, and secondarily by welding, there is no need to set too many welding bevels 3 for welding. Welding is only required at the outer edge of the mating point between the cover plate 1 and the side plate 2 to ensure the stability of the overall cabinet frame structure. Because the number of welds required in the overall structure is reduced, and furthermore, the depth and width of the welding bevels 3 in this embodiment can be reduced to a predetermined extent, the lightweight cabinet frame structure provided in this embodiment can effectively reduce heat input during welding, thereby achieving controllable cabinet deformation. While ensuring the reliable strength of the cabinet frame, it improves the production efficiency of the cabinet frame, meets the lightweight requirements of the cabinet frame, and results in low heat input and controllable deformation during overall structure assembly.

[0101] The inner side of the side plate 2 is provided with mating steps 12 at the upper and lower ends, and there are interval steps 13 between the mating steps 12 and the two side edges of the side plate 2; the second mating hole 21 is provided at the interval steps 13 and on the outer side wall of the mating steps 12.

[0102] The first mating hole 11 is located on both ends of the cover plate 1 and on the inner side of the cover plate 1 near the ends.

[0103] The spacer step 13 is used to abut against the two end faces of the cover plate 1. The outer wall of the mating step 12 abuts against the inner side of the cover plate 1 near the two end faces. At the same time, the first mating hole 11 and the second mating hole 21 are aligned and mated with the connector to achieve a fixed connection between the cover plate 1 and the side plate 2.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight cabinet frame structure, characterized in that, include: At least two cover plates (1) and at least two side plates (2), wherein: The cover plate (1) is connected to the two side plates (2) on both sides respectively, and is connected to the other cover plate (1) through the side plates (2); The cover plate (1) is provided with first mating holes (11) on both sides, and the side plate (2) is provided with second mating holes (21) at both the upper and lower ends. The first mating holes (11) and the second mating holes (21) are connected by a connector to realize the connection between the cover plate (1) and the side plate (2). A welding bevel (3) is provided on the outer side of the mating position between the cover plate (1) and the side plate (2). The welding bevel (3) is used to fill the welding material and weld the cover plate (1) and the side plate (2) together. The first mating hole (11) includes a first mating hole A (111) and a first mating hole B (112), wherein: mating steps (12) are provided on both sides of the inner side of the cover plate (1), and there is a gap step (13) between the mating steps (12) and the two sides of the edge of the cover plate (1); the first mating hole A (111) is provided at the gap step (13), and the first mating hole B (112) is provided on the outer side wall of the mating step (12); the first mating hole A (111) extends from the inner side of the cover plate (1) to the outer side of the cover plate (1); The second mating hole (21) includes a second mating hole A (211) and a second mating hole B (212), wherein: the second mating hole A (211) is disposed at the top surface of the side plate (2), the second mating hole B (212) is disposed at the inner side surface of the side plate (2), and the second mating hole B (212) extends from the inner side surface of the side plate (2) to the outer side surface of the side plate (2); The cover plate (1) has a first inclined groove (31) at the outer edge of both sides, and the inclined direction of the first inclined groove (31) is towards the outside of the cover plate (1); the side plate (2) has a second inclined groove (32) at the outer edge of the upper and lower ends, and the inclined direction of the second inclined groove (32) is towards the outside of the side plate (2); the first inclined groove (31) and the second inclined groove (32) are connected to each other to form the welding bevel (3).

2. The lightweight cabinet skeleton structure according to claim 1, characterized by, The spacer step (13) is used to abut against the top surface of the side plate (2), and the first mating hole A (111) and the second mating hole A (211) are mated by a connector; the outer wall of the mating step (12) abuts against the inner side surface of the side plate (2), and the first mating hole B (112) and the second mating hole B (212) are mated by a connector.

3. The lightweight cabinet skeleton structure according to claim 1, characterized by, Apart from the first mating holes A (111) and / or the first mating holes B (112) on the outermost sides, according to the arrangement order of the first mating holes A (111) and the first mating holes B (112) on the cover plate (1), the Nth first mating hole A (111) is located in the middle position of the horizontal projection of the Nth first mating hole B (112) and the N+1th first mating hole B (112), and the Nth first mating hole B (112) is located in the middle position of the horizontal projection of the N-1th first mating hole A (111) and the Nth first mating hole A (111); Excluding the second mating holes A (211) and B (212) on the outermost sides, according to the arrangement order of the second mating holes A (211) and B (212) on the side plate (2), the Nth second mating hole A (211) is located in the middle position of the horizontal projection of the Nth second mating hole B (212) and the N+1th second mating hole B (212), and the Nth second mating hole B (212) is located in the middle position of the horizontal projection of the N-1th second mating hole A (211) and the Nth second mating hole A (211); The N > 1; By staggering the first mating hole A (111) and the first mating hole B (112), and by staggering the second mating hole A (211) and the second mating hole B (212), the degree of deformation during welding and fixing between the cover plate (1) and the side plate (2) is reduced.

4. The lightweight cabinet skeleton structure according to claim 1, characterized by, A fixed boss (14) is provided on the outer side wall of the mating step (12), and a limiting groove (22) is provided on the inner side of the side plate (2). The fixed boss (14) is located inside the limiting groove (22).

5. The lightweight cabinet skeleton structure according to any one of claims 1 to 4, characterized in that, The inner wall of the side plate (2) and / or cover plate (1) is provided with a weight-reducing groove (4).

6. The lightweight cabinet frame structure according to any one of claims 1-4, characterized in that, At least two connecting plates (5) are also provided between the two side plates (2), one end of the connecting plate (5) is connected to the side of the side plate (2), and the other end of the connecting plate (5) is connected to the side of the other side plate (2).

7. The lightweight cabinet frame structure according to any one of claims 1-4, characterized in that, One of the cover plates (1) is provided with a wire groove hole (15).

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