Inverter upper shell clamp

By designing a multi-directional support and positioning structure for the inverter upper shell fixture, the deformation problem of the thin shell during processing was solved, ensuring processing accuracy and quality and improving production efficiency.

CN223981512UActive Publication Date: 2026-03-10KUNSHAN PULAN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing inverter housing fixtures cannot effectively support and fix thin housing structures, which makes them prone to deformation during processing, affecting product quality and production efficiency.

Method used

An inverter upper shell clamping fixture was designed, including a base plate, a support structure, a positioning component, a contour block, and a pressing component. Through multi-directional support and positioning, the stability of the inverter upper shell during the processing is ensured.

Benefits of technology

This effectively prevents the inverter housing from bending or twisting during processing, ensuring processing accuracy and quality, and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an inverter upper shell clamp which comprises a base plate, a plurality of chip grooves are formed in the base plate, supporting structures are arranged on the edge and the bottom of an inverted inverter upper shell, and the inverter upper shell is jacked up by the supporting structures and arranged on the base plate in a suspended mode. Two positioning assemblies are arranged on the substrate, and positioning protrusions on the two positioning assemblies are inserted into positioning holes in the left side and the right side of an inverter upper shell respectively. The substrate is provided with a crimping assembly, and a pressing plate of the crimping assembly corresponds to a supporting structure located at the edge of the inverter upper shell up and down. The substrate is provided with a plurality of profiling blocks, and each edge of the inverter upper shell is provided with a profiling block. The inverter upper shell can be positioned and supported in multiple directions so that the inverter upper shell can be in a suspended state, the edge of the inverter upper shell is supported in multiple directions so that stable and reliable support can be provided in the machining process, the edge is prevented from being bent or distorted in the machining process, and the machining quality of the inverter upper shell is improved. And errors and defects caused by displacement or shaking of the upper shell of the inverter are reduced to the greatest extent.
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Description

Technical Field

[0001] This utility model belongs to the field of clamping devices and relates to an inverter upper shell clamp. Background Technology

[0002] Against the backdrop of continuous technological advancements, the inverter industry is rapidly moving towards lightweight design. This trend has led to significant changes in the form of inverter products, most notably the increasing thinness of the overall design. Existing inverter housings are adopting thin-shell structures to adapt to this trend.

[0003] by Figure 1 Taking the inverter's upper casing as an example, its top has several protrusions. While this thin-shell structure achieves significant weight reduction, it also presents numerous challenges to the manufacturing process. During processing, existing fixtures demonstrate a clear deficiency, failing to provide sufficiently stable support and fixation.

[0004] Because the fixtures cannot effectively guarantee the stability of the inverter during processing, the product is prone to deformation. This deformation problem brings a series of negative impacts, seriously affecting product quality and production efficiency.

[0005] For example, during machining, uneven stress can easily cause thin-walled shells to bend or twist locally, making it difficult to achieve the required machining accuracy. During drilling, even slight vibrations can cause hole misalignment, affecting subsequent assembly. Furthermore, product deformation can lead to difficulties in installing internal electronic components, increasing assembly complexity and the probability of errors.

[0006] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0007] The purpose of this utility model is to provide an inverter upper shell fixture to solve the problem of instability in inverter upper shell processing.

[0008] The objective of this utility model is achieved through the following technical solution:

[0009] An inverter upper casing clamp includes a base plate with several chip removal grooves. Support structures are provided at the edges and bottom of an inverted inverter upper casing, lifting and suspending the upper casing on the base plate. Two positioning components are provided on the base plate, each with a positioning protrusion at its upper end, which is inserted into positioning holes on the left and right sides of the inverter upper casing. A pressing component is provided on the base plate, with its pressing plate corresponding vertically to the support structures located at the edges of the inverter upper casing. Several contour blocks are provided on the base plate, each with a contouring inclined surface at its upper end adapted to the edges of the inverter upper casing. Each edge of the inverter upper casing has one of these contour blocks.

[0010] As a further improvement of one embodiment of the present invention, a plurality of support plates are fixedly disposed on the back side of the substrate, and the support structure located at the bottom of the upper shell of the inverter is located in the chip removal groove and fixedly disposed on the support plate.

[0011] As a further improvement of one embodiment of the present invention, the support structure located at the edge of the upper shell of the inverter is fixedly disposed on the substrate.

[0012] As a further improvement of one embodiment of the present invention, the support structure located at the edge of the inverter upper shell consists of an integral support block and a split support block assembly, wherein the integral support block and the split support block are alternately distributed on the upper and lower edges of the inverter upper shell.

[0013] As a further improvement of one embodiment of the present invention, the integrated support block has a structure that is narrow at the top and wide at the bottom; the upper end of the integrated support block is a columnar body, and the lower end of the integrated support block is fixed to the substrate by bolts.

[0014] As a further improvement of one embodiment of the present utility model, the split support block includes a columnar base, a connecting column, and a top rod column. The upper end of the columnar base is provided with a first inner groove, the connecting column is disposed in the first inner groove, the upper end of the connecting column is provided with a second inner groove, and the top rod column is disposed in the second inner groove; the base plate is provided with a third inner groove for placing the columnar base.

[0015] As a further improvement of one embodiment of the present utility model, the positioning component includes a positioning base and a positioning post. The upper end of the positioning base is provided with a fourth inner groove, and the positioning post is disposed in the fourth inner groove. The upper end of the positioning post is a positioning protrusion. The base plate is provided with a fifth inner groove for placing the positioning base.

[0016] As a further improvement of one embodiment of the present invention, support columns are provided at the four corners of the substrate, and at least one pair of lifting lugs are provided on the substrate.

[0017] As a further improvement of one embodiment of the present invention, the substrate is provided with a plurality of air blowing pipes, which are bent and inclined toward the upper shell of the inverter.

[0018] The above technical solution has the following advantages: it can provide multi-directional positioning and support for the inverter upper shell, keeping it in a suspended state. By providing multi-directional support for the edges of the inverter upper shell, it provides stable and reliable support during processing, avoiding bending or twisting during edge processing. It minimizes errors and defects caused by displacement or shaking of the inverter upper shell, ensuring processing accuracy and quality, and solving the problem of instability in inverter upper shell processing. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the structure of the inverter upper casing provided by this utility model.

[0022] Figure 2 A three-dimensional structural schematic diagram (including the inverter upper shell) is provided for this utility model.

[0023] Figure 3 A schematic diagram of the main structure of this utility model (including the upper shell of the inverter).

[0024] Figure 4 A bottom view structural diagram (including the inverter upper shell) provided for this utility model.

[0025] Figure 5 A three-dimensional structural schematic diagram of this utility model (excluding the inverter upper shell).

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the contour block provided by this utility model.

[0027] Figure 7 A three-dimensional structural diagram of the integrated support block provided by this utility model.

[0028] Figure 8 A three-dimensional structural diagram of the split support block provided by this utility model.

[0029] Figure 9 A cross-sectional view of the split support block provided by this utility model.

[0030] Figure 10 A three-dimensional structural diagram of the first positioning component provided by this utility model.

[0031] Figure 11 A three-dimensional structural diagram of the second positioning component provided by this utility model.

[0032] Figure 12 This is a three-dimensional structural diagram of the crimping assembly provided by this utility model.

[0033] In the picture:

[0034] 1-Inverter upper casing;

[0035] 2-Substrate; 21, 22, 23, 24, 25, 26-Chip removal grooves;

[0036] 31, 32, 33 - Support plates;

[0037] 4-Shaped block; 41-Shaped inclined plane;

[0038] 51-Integrated support block; 511-Columnar body; 52-Separate support block; 521-Columnar base; 522-Connecting column; 523-Top rod column;

[0039] 6-Positioning component; 61, 63-Positioning base; 62, 64-Positioning post;

[0040] 71-Support column; 72-Lifting lug; 73, 74-Motor base;

[0041] 8-Blowpipe;

[0042] 9-Crimping assembly; 91-Hydraulic cylinder; 911-Protrusion; 92-Pressure plate; 93-Connecting plate. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0045] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0046] See Figures 1-5 As shown, an inverter upper shell clamp includes a base plate 2. The base plate 2 is provided with a plurality of chip removal grooves 21, 22, 23, 24, 25, and 26. The inverted inverter upper shell 1 is provided with support structures at its edge and bottom. These support structures play an important role in lifting the inverter upper shell 1 steadily and suspending it above the base plate 2.

[0047] Support plates 31, 32, and 33 are fixedly mounted on the back of the substrate 2. Among them, the support structure located at the bottom of the inverter upper shell 1 is cleverly arranged in the chip removal groove 26 and is firmly fixed on the support plate 32. The support structure located at the edge of the inverter upper shell 1 is directly fixed on the substrate 2.

[0048] A pressing assembly 9 is provided on the substrate 2. The pressing plate of the pressing assembly 9 corresponds vertically to the support structure located at the edge of the inverter upper shell. The two cooperate with each other and work together to press the inverter upper shell tightly against the edge. This tight pressing can effectively prevent unnecessary loosening of the inverter upper shell during processing, thereby ensuring the accuracy and stability of processing.

[0049] Furthermore, two positioning components 6 are also provided on the substrate 2. Each of these positioning components 6 has a positioning protrusion at its upper end. During actual processing, the positioning protrusions of these two positioning components 6 are precisely inserted into the positioning holes on the left and right sides of the inverter upper housing 1. This precise insertion and fit effectively prevents angular displacement of the inverter upper housing 1 during processing. Even in complex processing operations, it ensures that the inverter upper housing always maintains the correct position and angle, laying a solid foundation for high-quality processing results.

[0050] In addition, combined Figure 6As shown, several contour blocks 4 are further provided on the substrate 2. The upper ends of these contour blocks 4 have contoured inclined surfaces 41 that adapt to the edges of the inverter upper shell 1. Moreover, such contour blocks 4 are provided at each edge of the inverter upper shell 1. The advantage of this design is that when edge processing of the thin-shell inverter upper shell 1 is performed, these contour blocks can provide sufficient and uniform support force. For example, in practical applications, during machining operations such as cutting or drilling, without sufficient support, the edges of the thin shell are easily bent or twisted due to uneven force. However, with the presence of these contour blocks, the forces during the processing can be effectively distributed, ensuring the structural integrity and machining accuracy of the inverter upper shell 1 edges. Whether in delicate machining processes or high-intensity production processes, these contour blocks play a crucial role in ensuring product quality and reliability.

[0051] Furthermore, the support structure located at the edge of the inverter upper casing 1 is composed of an integrated support block 51 and a separate support block 52. These two types of support block components cooperate with each other and are staggered on the upper and lower edges of the inverter upper casing 1, forming a stable and effective support system.

[0052] Specifically, combined Figure 7 As shown, the integrated support block 51 exhibits a unique structure that is narrower at the top and wider at the bottom. This structural design offers significant advantages, optimizing both stability and load-bearing capacity. The upper end of the integrated support block 51 is a columnar body 511, which helps to make more precise contact with the edge of the inverter's upper casing 1, providing a more concentrated and uniform support force. The lower end of the integrated support block 51 is securely bolted to the base plate 2, ensuring that there will be no loosening or displacement during processing.

[0053] Combination Figure 8 , Figure 9 As shown, the structure of the split support block 52 is relatively complex but equally ingenious. It consists of a columnar base 521, a connecting column 522, and a top rod column 523. The upper end of the columnar base 521 has a first inner groove, within which the connecting column 522 is cleverly positioned. Simultaneously, the upper end of the connecting column 522 also has a second inner groove, within which the top rod column 523 is located. Through this layered design, the split support block 52 can flexibly adapt to different stress conditions when providing support, and when subjected to external impact, it can effectively disperse the force through the synergistic effect of its components, thereby protecting the inverter's upper casing 1 from damage.

[0054] In addition, a third inner groove is specially provided on the substrate 2 for placing the columnar base 521. This design not only provides an accurate installation position for the columnar base 521 and ensures the installation accuracy of the split support block 52, but also restricts the movement of the columnar base 521 to a certain extent, further enhancing the stability of the support structure.

[0055] In actual processing and use, the staggered distribution and unique structure of the integrated support block 51 and the split support block 52 can effectively cope with various complex forces and pressures on the edge of the inverter upper shell 1, providing reliable support for the inverter upper shell 1 and ensuring the quality and performance of the product. For example, when subjected to uneven external forces or thermal expansion and contraction in a high-temperature environment, this support structure can effectively maintain the shape and position of the inverter upper shell 1, avoiding deformation or misalignment.

[0056] Combination Figure 12 As shown, the pressing assembly 9 includes a hydraulic cylinder 91 mounted on the base plate 2. One end of the hydraulic cylinder 91 is hinged to a pressure plate 92 at its telescopic end. The middle region of the pressure plate 92 is hinged to the upper end of a connecting plate 93, and the lower end of the connecting plate 93 is hinged to a protrusion 911 on the hydraulic cylinder 91. Under the action of the hydraulic cylinder 91, the other end of the pressure plate 92 can press down onto the edge of the inverter upper housing 1. When it cooperates with the support structure to act on the edge of the inverter upper housing, it tightly presses the inverter upper housing.

[0057] In addition, to ensure the normal operation of the hydraulic cylinder 91, an oil passage connected to the hydraulic cylinder 91 is provided in the base plate 2. Furthermore, an oil injection hole and an oil outlet hole are formed on the base plate 2. The oil injection hole is used to inject hydraulic oil into the oil passage, while the oil outlet hole is used to discharge the hydraulic oil after use or to perform maintenance and repair work on the oil passage when necessary.

[0058] Furthermore, in this embodiment, as Figure 10 , Figure 11 The positioning assembly 6 shown exists in two types, both consisting of positioning bases 61 and 63 and positioning posts 62 and 64. The upper ends of positioning bases 61 and 63 are provided with fourth inner grooves. Positioning posts 62 and 64 are placed within these corresponding fourth inner grooves. The upper end of positioning post 62 is the crucial positioning protrusion, which plays a vital positioning role in the entire device.

[0059] Specifically, this structural design has significant advantages. The positioning post 62 and the positioning base 61 (positioning post 64 and positioning base 63) are tightly and stably connected through the engagement of internal grooves. In actual operation, when positioning the inverter upper casing 1 is required, the positioning posts 62 and 64, supported and fixed by the positioning bases 61 and 63, can accurately perform their positioning function, ensuring that the inverter upper casing 1 is in the correct position.

[0060] In addition, the substrate 2 is specially provided with a fifth inner groove for placing the positioning bases 61 and 63. The fifth inner groove provides a precise placement position for the positioning bases 61 and 63, which not only ensures the installation accuracy of the positioning bases 61 and 63 so that they can function accurately, but also restricts the movement of the positioning bases 61 and 63 to a certain extent, thereby enhancing the stability of the entire positioning assembly 6.

[0061] For example, without such a robust positioning component and precise mounting structure during processing, the inverter's upper casing 1 might shift position due to slight vibrations or external forces, affecting the accuracy and quality of the processing. However, with this carefully designed positioning component and matching mounting groove, these problems can be effectively avoided, providing a strong guarantee for high-quality manufacturing.

[0062] This layout and design are the result of careful consideration and planning, aiming to ensure that the inverter upper casing 1 receives comprehensive and stable support during processing, preventing shaking or displacement, thereby guaranteeing processing accuracy and quality. Simultaneously, the well-designed chip removal grooves can effectively and promptly remove debris generated during processing, creating a favorable working environment for the entire process.

[0063] In this embodiment, support columns 71 are provided at the four corners of the substrate 2. These support columns 71 are in direct contact with the bottom surface and lift the substrate 2 upwards through their own supporting force. This design has several advantages. On the one hand, raising the substrate 2 can prevent it from directly contacting the ground and reduce the impact of factors such as ground moisture and dust. On the other hand, proper elevation also makes it easier for operators to operate and observe during the processing.

[0064] Meanwhile, at least one pair of lifting lugs 72 are also provided on the substrate 2. The presence of these lifting lugs 72 greatly facilitates the movement of the fixture. In actual production scenarios, when it is necessary to move or rearrange the fixture, the fixture can be easily and safely lifted by connecting the lifting equipment with the lifting lugs 72, which greatly improves work efficiency and reduces the risks and inconveniences that may be caused by manual handling.

[0065] In addition, motor mounts 73 and 74 are provided on the left and right sides of the substrate 2. These motor mounts 73 and 74 have important connection functions, allowing them to be connected to other devices, such as a swing mechanism. When connected to the swing mechanism, the entire fixture can swing. This swing function brings more possibilities and flexibility to the machining operation. For example, in some cases requiring multi-angle machining, the angle of the inverter's upper casing can be adjusted more easily by swinging the entire fixture, thereby improving machining accuracy and efficiency.

[0066] In this embodiment, a plurality of air-blowing pipes 8 are provided on the substrate 2, and the air-blowing pipes 8 are bent and inclined toward the upper shell of the inverter. The air blowing through the air-blowing pipes 8 can help remove some heat, reduce the temperature, and reduce the impact of thermal deformation on processing accuracy.

[0067] The above design provides multi-directional positioning and support for the inverter's upper casing, keeping it suspended in mid-air. By providing multi-directional support for the edges of the inverter's upper casing, it offers stable and reliable support during processing, preventing bending or twisting during edge processing. This minimizes errors and defects caused by displacement or shaking of the inverter's upper casing, ensuring processing accuracy and quality, and solving the problem of instability in inverter upper casing processing.

[0068] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An inverter upper housing clamp, characterized by: The application relates to a substrate provided with a plurality of chip removal grooves, and the edges and bottom of an inverted inverter upper shell are provided with support structures which are lifted and suspended on the substrate; two positioning assemblies are arranged on the substrate, the upper ends of the two positioning assemblies are provided with positioning protrusions, and the positioning protrusions of the two positioning assemblies are respectively inserted into positioning holes on the left and right sides of the inverter upper shell; a crimping assembly is arranged on the substrate, the pressing plate of the crimping assembly corresponds to the support structures on the edges of the inverter upper shell; a plurality of profiling blocks are arranged on the substrate, the upper ends of the profiling blocks are provided with profiling inclined surfaces matched with the edges of the inverter upper shell, and the profiling blocks are arranged at each edge of the inverter upper shell.

2. The inverter upper housing clamp of claim 1, wherein: The back surface of the substrate is fixedly provided with a plurality of support plates, and the support structures on the bottom of the inverter upper shell are located in the chip removal grooves and fixedly arranged on the support plates.

3. The inverter upper housing clamp of claim 2, wherein: The support structures on the edges of the inverter upper shell are fixedly arranged on the substrate.

4. The inverter upper housing clamp of claim 3, wherein: The support structures on the edges of the inverter upper shell are composed of integral support blocks and split support block assemblies, and the integral support blocks and the split support block assemblies are staggered on the upper and lower edges of the inverter upper shell.

5. The inverter upper housing clamp of claim 4, wherein: The integral support block has a structure of being narrow at the upper end and wide at the lower end; the upper end of the integral support block is a columnar body, and the lower end of the integral support block is locked on the substrate through bolts.

6. The inverter upper housing clamp of claim 4, wherein: The split support block comprises a columnar base, a connecting column and a top rod column, the upper end of the columnar base is provided with a first inner groove, the connecting column is arranged in the first inner groove, the upper end of the connecting column is provided with a second inner groove, and the top rod column is arranged in the second inner groove; the substrate is provided with a third inner groove for placing the columnar base.

7. The inverter upper housing clamp of claim 1, wherein: The positioning assembly comprises a positioning base and a positioning column, the upper end of the positioning base is provided with a fourth inner groove, the positioning column is arranged in the fourth inner groove, and the upper end of the positioning column is a positioning protrusion; the substrate is provided with a fifth inner groove for placing the positioning base.

8. The inverter upper housing clamp of claim 1, wherein: Support columns are arranged at the four corners of the substrate, and at least one pair of lifting lugs are arranged on the substrate.

9. The inverter upper housing clamp of claim 1, wherein: A plurality of air blowing pipes are arranged on the substrate, and the air blowing pipes are bent and inclined towards the side of the inverter upper shell.