Chassis and processing mechanism for inverter sheet metal cabinet

By designing a combination of a multi-frame structure and clamping blocks, the problem of inaccurate positioning of the inverter sheet metal cabinet chassis during production was solved, a fast and stable welding process was achieved, and the mechanical strength of the cabinet and the reliability of power conversion were improved.

CN223463220UActive Publication Date: 2025-10-21NINGBO WANJIN MODERN SHEET METAL
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Patent Information

Application Number
CN202422858977.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-21
Estimated Expiration
2034-11-22

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  • Figure CN223463220U_ABST
    Figure CN223463220U_ABST
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Abstract

The utility model provides a chassis for an inverter sheet metal cabinet and a processing mechanism. The underframe for the inverter metal plate cabinet comprises a first transverse frame, a second transverse frame, a first longitudinal frame and a second longitudinal frame, wherein the second transverse frame is positioned on the other side of the long edge of a bottom plate and is arranged along the long edge direction; the first longitudinal frame is positioned on one side of the short edge of the bottom plate and is arranged along the short edge direction; the second longitudinal frame is positioned on the other side of the short edge of the bottom plate and is arranged along the short edge direction; the third longitudinal frame is located between the first transverse frame and the second transverse frame and arranged in the short edge direction, the third transverse frame is located between the first longitudinal frame and the third longitudinal frame and arranged in the long edge direction, and the fourth longitudinal frame is located between the first transverse frame and the third transverse frame and arranged in the short edge direction. A machining mechanism is used for producing the underframe for the inverter metal plate cabinet, the underframe for the inverter metal plate cabinet and the machining mechanism are provided, the underframe is stable in structure and not prone to deformation, and the machining mechanism can rapidly position and fix the large door plate structure.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of parts assembling and processing application, especially to a chassis for inverter sheet metal cabinet and processing mechanism. BACKGROUND

[0002] In the design and manufacturing process of the inverter sheet metal cabinet, the chassis plays a fundamental and crucial role. The inverter sheet metal cabinet is often deployed in various industrial and civilian power conversion scenarios, and its environment is complex and variable, which may face dust, humidity, electromagnetic interference and other adverse factors.

[0003] Under normal operating conditions, the chassis, as the supporting structure of the entire cabinet, needs to bear the weight of the internal inverter equipment, various control circuits and heat dissipation devices, etc. It must have sufficient mechanical strength and stability to prevent internal component connection loosening, misplacement and thus affect the normal power conversion function and signal transmission accuracy of the inverter due to its own structural deformation during equipment operation. For example, if the chassis bends and deforms under long-term load, it may cause poor contact between the plug-in interfaces of the circuit boards, leading to equipment failure or even shutdown accidents.

[0004] In addition, the precision and layout rationality of the chassis are directly related to the assembly efficiency and protection performance of the entire cabinet. Precise size and shape can ensure seamless fit of the cabinet shell and the chassis, effectively preventing small particles such as dust and moisture from entering the cabinet interior from the bottom gap. Once dust accumulates on the surface of electrical components or humid air causes short circuit, it may damage the inverter equipment, reduce its conversion efficiency or even cause permanent damage.

[0005] In the production process of the chassis, it is generally made by welding multiple sheet metal parts. Due to the complex splicing and connection of multiple sheet metal parts, accurate positioning and stable fixation of these components must be performed during assembly. For example, during welding operation, the butt edges between sheet metal parts need to be tightly fitted, and the angle and position deviation must be controlled within a very small range, otherwise it will affect the weld quality and overall structural strength of the chassis. Traditional manual positioning and simple tooling have been difficult to meet the large-scale, high-precision production requirements. Therefore, there is an urgent need for a high-efficiency processing mechanism specially designed for the chassis of the inverter sheet metal cabinet, which can quickly and accurately position each sheet metal component of the chassis and achieve reliable fixation, so as to smoothly carry out welding, riveting and other operations, ensure high-quality production of the chassis of the inverter sheet metal cabinet, and improve the performance and reliability of the entire cabinet, ensuring stable operation of the power conversion system. SUMMARY

[0006] The utility model wants to solve the problem: provide a chassis and processing mechanism for inverter sheet metal cabinet, the chassis structure is stable, and the processing mechanism can be fixed to the door plate structure positioning quickly, thereby facilitating the welding work to carry out.

[0007] The utility model adopts technical scheme for solving above-mentioned problem: a chassis for inverter sheet metal cabinet, including the first horizontal frame of being placed in the long side one side of bottom plate along long side direction, the second horizontal frame of being placed in the long side other side of bottom plate along long side direction, the first vertical frame of being placed in the short side one side of bottom plate along short side direction, the second vertical frame of being placed in the short side other side of bottom plate along short side direction, the third vertical frame of being set between the first horizontal frame and second horizontal frame along short side direction, the third horizontal frame of being set between the first vertical frame and third vertical frame along long side direction, the fourth vertical frame of being set between the first horizontal frame and third horizontal frame along short side direction, the first recess along short side direction of the middle part of first vertical frame is provided with, the second recess along short side direction of second vertical frame middle part is provided with, the third recess along short plate direction of third vertical frame middle part is provided with. First horizontal frame and second horizontal frame are placed along the long side direction of bottom plate, and they are like two solid cross beams, and provide the main horizontal support for whole chassis.

[0008] When being subjected to external force, for example, the distortion force generated when the cabinet is placed on uneven ground or the transverse tension caused by uneven weight distribution of internal equipment, the two horizontal frames can jointly share these forces and resist deformation through their rigidity. At the same time, the third horizontal frame located between them further strengthens the horizontal support structure. The third horizontal frame connects the first horizontal frame and the second horizontal frame to form a more stable horizontal frame system. This interconnection allows forces to be evenly transmitted between the three horizontal frames.

[0009] The utility model provides a processing mechanism for producing the chassis of the above-mentioned inverter sheet metal cabinet, including the bottom plate, the bottom plate is provided with the placement plane, two fifth clamping blocks are arranged above the both ends of the bottom of the first recess respectively on the placement plane, two fifth clamping blocks are used for clamping the both ends of the first recess to the placement plane respectively, two sixth clamping blocks are arranged above the both ends of the bottom of the second recess respectively on the placement plane, two sixth clamping blocks are used for clamping the both ends of the bottom of the second recess to the placement plane respectively, two seventh clamping blocks are arranged above the both ends of the third recess respectively on the placement plane, two seventh clamping blocks are used for clamping the both ends of the third recess to the placement plane respectively, the eighth clamping block is arranged above the fourth vertical frame on the placement plane, and the both ends of the eighth clamping block are used for clamping the both ends of the fourth vertical frame to the placement plane respectively.

[0010] Preferably, two first clamping blocks are arranged above the both ends of the first step surface, and the two first clamping blocks are used for clamping the both ends of the first step surface to the placement plane.

[0011] Preferably, two first ejection blocks are arranged below the both ends of the first horizontal frame on the placement plane, and the two first ejection blocks are used for separating the both ends of the first horizontal frame from the placement plane.

[0012] Preferably, two third clamping blocks are arranged above both ends of the third step surface of the second horizontal frame, and the two third clamping blocks are used for clamping both ends of the third step surface to the placement plane.

[0013] Preferably, two second ejection blocks are arranged below both ends of the second horizontal frame on the placement plane, and the second ejection blocks are used for separating both ends of the second horizontal frame from the placement plane. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a top view of the utility model;

[0015] Figure 2 It is a perspective view of the bottom frame for the inverter sheet metal cabinet in the utility model.

[0016] Illustration: 1, bottom plate; 2, placement plane; 3.1, first horizontal frame; 3.1.1, first step surface; 3.1.2, second step surface; 3.2, second horizontal frame; 3.2.1, third step surface; 3.2.2, fourth step surface; 3.3, first vertical frame; 3.3.1, first recess; 3.4, second vertical frame; 3.4.1, second recess; 3.5, third vertical frame; 3.5.1, third recess; 3.6, third horizontal frame; 3.7, fourth vertical frame; 4, first clamping block; 5, second clamping block; 6, third clamping block; 7, fourth clamping block; 8, fifth clamping block; 9, sixth clamping block; 10, seventh clamping block; 11, eighth clamping block; 12, first ejection block; 13, second ejection block. DETAILED DESCRIPTION

[0017] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The application is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings.

[0018] Also, in the disclosure of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms cannot be understood as limiting the present application; secondly, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as limiting the number.

[0019] It should be understood by those skilled in the art that the embodiments of the present application shown in the above description and drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application has been shown and explained in the embodiments, and the embodiments of the present application can be any modification or modification without departing from the principle.

[0020] The embodiments of the present application will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figure 1 , 2 A processing mechanism includes a base plate 1, and the base plate 1 is provided with a placing plane 2 for placing. On the placing plane 2, there is a bottom frame for an inverter sheet metal cabinet, which includes the following parts:

[0022] The first horizontal frame 3.1 is placed along one side of the long edge of the base plate 1. The second horizontal frame 3.2 is placed along the other side of the long edge of the base plate 1. The first vertical frame 3.3 is placed along one side of the short edge of the base plate 1. The second vertical frame 3.4 is placed along the other side of the short edge of the base plate 1. The third vertical frame 3.5 is placed between the first horizontal frame 3.1 and the second horizontal frame 3.2 along the short edge direction. The third horizontal frame 3.6 is placed between the first vertical frame 3.3 and the third vertical frame 3.5 along the long edge direction. The fourth vertical frame 3.7 is placed between the first horizontal frame 3.1 and the third horizontal frame 3.6 along the short edge direction. In addition, the first horizontal frame 3.1 includes a first stepped surface 3.1.1 on the outer side and a second stepped surface 3.1.2 on the inner side. The second horizontal frame 3.2 includes a third stepped surface 3.2.1 on the outer side and a fourth stepped surface 3.2.2 on the inner side. The middle part of the first vertical frame 3.3 is provided with a first groove 3.3.1 along the short edge direction, and the middle part of the second vertical frame 3.4 is provided with a second groove 3.4.1 along the short edge direction. The middle part of the third vertical frame 3.5 is provided with a third groove 3.5.1 along the short edge direction,

[0023] Two first clamping blocks 4 are arranged on the placement plane 2 above the two ends of the first stepped surface 3.1.1, respectively, for clamping the two ends of the stepped surface towards the placement plane 2, ensuring stable connection. Similarly, two second clamping blocks 5 are arranged on the placement plane 2 above the two ends of the second stepped surface 3.1.2, respectively, for clamping the two ends of the stepped surface towards the placement plane 2. Two third clamping blocks 6 are arranged on the placement plane 2 above the two ends of the third stepped surface 3.2.1, respectively, for clamping the two ends of the stepped surface towards the placement plane 2. Two fourth clamping blocks 7 are arranged on the placement plane 2 above the two ends of the fourth stepped surface 3.2.2, respectively, for clamping the two ends of the stepped surface towards the placement plane 2. Two fifth clamping blocks 8 are arranged on the placement plane 2 above the two ends of the bottom of the first groove 3.3.1, respectively, for clamping the two ends of the first groove 3.3.1 towards the placement plane 2. Two sixth clamping blocks 9 are arranged on the placement plane 2 above the two ends of the bottom of the second groove 3.4.1, respectively, for clamping the two ends of the bottom of the second groove 3.4.1 towards the placement plane 2. Two seventh clamping blocks 10 are arranged on the placement plane 2 above the two ends of the third groove 3.5.1, respectively, for clamping the two ends of the third groove 3.5.1 towards the placement plane 2. An eighth clamping block 11 is arranged above the fourth vertical frame 3.7, and the two ends of the fourth vertical frame 3.7 are clamped towards the placement plane 2, respectively.

[0024] Two first ejection blocks 12 are designed below both ends of the first horizontal frame 3.1 on the placing plane 2, and two second ejection blocks 13 are designed below both ends of the second horizontal frame 3.2 on the placing plane 2, so that pressure can be applied to both ends of the first horizontal frame 3.1 and the second horizontal frame 3.2 after welding is completed, and the chassis 3 after welding is completed is convenient to separate from the placing plane 2.

[0025] The above only describes the best embodiment of the present application, but cannot be understood as a limitation on the claims. The present application is not limited to the above embodiment, and the specific structure can be changed. Any change within the protection scope of the independent claim of the present application is within the protection scope of the present application.

Claims

1. A base frame for an inverter sheet metal cabinet, characterized by, The first longitudinal frame (3.3) is provided with a first groove (3.3.1) in the short edge direction in the middle part, the second longitudinal frame (3.4) is provided with a second groove (3.4.1) in the short edge direction in the middle part, the third longitudinal frame (3.5) is provided with a third groove (3.5.1) in the short edge direction in the middle part, the first horizontal frame (3.1) includes a first step surface (3.1.1) on the outer side and a second step surface (3.1.2) on the inner side, and the second horizontal frame (3.2) includes a third step surface (3.2.1) on the outer side and a fourth step surface (3.2.2) on the inner side.

2. A processing mechanism characterized by: The bottom frame for producing the inverter sheet metal cabinet of claim 1 comprises a bottom plate (1), and the bottom plate (1) is provided with a placement plane (2), two fifth clamping blocks (8) are arranged above both ends of the bottom of the first groove (3.3.1) on the placement plane (2), respectively, and the two fifth clamping blocks (8) are respectively used for clamping the two ends of the first groove (3.3.1) to the placement plane (2), two sixth clamping blocks (9) are arranged above both ends of the bottom of the second groove (3.4.1) on the placement plane (2), respectively, and the two sixth clamping blocks (9) are respectively used for clamping the two ends of the bottom of the second groove (3.4.1) to the placement plane (2), two seventh clamping blocks (10) are arranged above both ends of the third groove (3.5.1) on the placement plane (2), respectively, and the two seventh clamping blocks (10) are respectively used for clamping the two ends of the third groove (3.5.1) to the placement plane (2), and an eighth clamping block (11) is arranged above the fourth longitudinal frame (3.7) on the placement plane (2), and both ends of the eighth clamping block (11) are respectively used for clamping both ends of the fourth longitudinal frame (3.7) to the placement plane (2).

3. A machine according to claim 2, wherein: Two first clamping blocks (4) are arranged above both ends of the first step surface (3.1.1), and the two first clamping blocks (4) are used for clamping both ends of the first step surface (3.1.1) to the placement plane (2); two second clamping blocks (5) are arranged above both ends of the second step surface (3.1.2), and the two second clamping blocks (5) are used for clamping both ends of the second step surface (3.1.2) to the placement plane (2).

4. A machine according to claim 2, wherein: Two first ejection blocks (12) are arranged below both ends of the first horizontal frame (3.1) on the placement plane (2), and the first ejection blocks (12) are used for separating both ends of the first horizontal frame (3.1) from the placement plane (2).

5. The machine of claim 2 wherein: Two third clamping blocks (6) are arranged above both ends of the third step surface (3.2.1) on the placement plane (2), and the two third clamping blocks (6) are used for clamping both ends of the third step surface (3.2.1) to the placement plane (2); two fourth clamping blocks (7) are arranged above both ends of the fourth step surface (3.2.2), and the two fourth clamping blocks (7) are used for clamping both ends of the fourth step surface (3.2.2) to the placement plane (2).

6. A machine according to claim 2, wherein: Two second ejection blocks (13) are arranged below both ends of the second horizontal frame (3.2) on the placement plane (2), and the second ejection blocks (13) are used for separating both ends of the second horizontal frame (3.2) from the placement plane (2).