Sealing structure for joint surface of controller shell

Abstract

The utility model relates to a joint surface sealing structure of a controller shell. The joint surface sealing structure comprises a grid pattern structure and a glue storage groove. The grid pattern structure is arranged on the sealing surface between the upper shell and the lower shell of the controller, and the sealing reliability and durability are improved by increasing the surface roughness, forming a micro-channel or increasing the adhesive force of sealant and the like. The glue storage groove is located in the inner cavity area around the combination face and can collect and fix the sealant overflowing due to extrusion. As time goes on, the collected sealant can be gradually solidified to form a continuous and compact sealing rubber strip, and an additional and reliable secondary sealing barrier is provided for a sealing system of the controller. Therefore, the pollution risk of the sealant to precise parts in the controller is avoided, and the overall sealing effect of the controller is further enhanced. The sealing width of the joint surface and the sealing surface at the bolt are accurately controlled and optimally designed, so that the sealing effect of the controller is improved, and a powerful guarantee is provided for long-term stable operation of the controller.

Description

Technical Field

[0001] The utility model relates to a sealing structure, in particular to a controller shell joint surface sealing structure. Background Art

[0002] The design of the controller's sealing structure is crucial for ensuring proper operation and extending its service life. Currently, the sealing structure of the controller's mating surface generally consists of key components such as the upper and lower housings, as well as sealant. These three components together form a complete sealing system, effectively preventing oil leakage and external liquid intrusion.

[0003] The sealing structure of the existing controller joint surface is as follows Figure 1 As shown in the figure, due to the extremely smooth contact surfaces of the housing, only a trace amount of sealant adheres to the surface during bonding, making it difficult to form an effective sealing barrier. Furthermore, if excessive sealant is applied, it will be squeezed out of the sealing surface during the closing process. While excess sealant on the outside of the controller is easy to clean, the remaining sealant inside is directly exposed to the controller's internal environment due to the lack of a dedicated collection or fixing structure. This exposed sealant, under the continuous impact of oil, will gradually peel off, posing a potential risk of contaminating the controller's internal structure. In more serious cases, it may directly contaminate the controller's delicate components, affecting its normal operation and even causing functional failure or serious damage.

[0004] In summary, the current sealing structure of the housing joint surface is difficult to form an effective sealing guarantee, and lacks a special sealant collection or fixing structure. Based on this, it is necessary to develop a new controller housing joint surface sealing structure to effectively solve the above problems. Summary of the Invention

[0005] The purpose of this utility model is to provide a controller shell joint surface sealing structure, incorporating a sealant guiding and collecting mechanism into the shell design to solve the problem of ensuring that the sealant forms an effective seal in the correct position and prevents excess material from entering the interior of the controller, thereby ensuring the cleanliness and long-term stable operation of the controller.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A controller housing joint surface sealing structure, comprising a grid pattern structure and a glue storage groove;

[0008] The grid pattern structure is provided on the joint surface between the upper shell and the lower shell within the inner cavity of the controller. The grid pattern structure needs to be evenly distributed on the entire joint surface to ensure that the sealant can evenly penetrate and fill each grid during press-fitting to form a continuous sealing layer; the direction of the grid pattern structure is consistent with the main sealing direction or forms a cross layout;

[0009] The glue storage groove is formed by the C1 specification chamfered corner and R1 specification rounded corner structure set on the edge of the joint surface, which are closely matched with the upper shell, and is used to accommodate and store sealant to prevent the sealant from overflowing or losing when subjected to pressure or vibration.

[0010] Furthermore, the grid pattern structure has a depth of 0.1-0.3 mm and a width of 0.5-1.2 mm.

[0011] Furthermore, the glue storage groove is a 45° bevel structure.

[0012] Furthermore, the chamfered corners are of C1 specification, and the rounded corners are of R1 specification.

[0013] Furthermore, the number of the glue storage groove is one, which runs through the inner cavity of the bonding surface.

[0014] Furthermore, the sealing width of the joint surface is less than 10 mm, and the sealing surface width at the bolt is at least 6 mm.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model optimizes the sealing structure of the upper / lower shell joint surface. It not only defines the width of the joint surface, but also innovatively introduces a mesh pattern and a glue storage groove structure. Specifically, it has the following advantages:

[0017] 1. Clever Application of a Mesh-Like Structure: The mesh-like structure on the controller's mating surface not only enhances the physical adhesion of the interface but, more importantly, acts as a miniature glue reservoir during the sealant application and curing process, effectively storing large quantities of sealant. This design fully utilizes the sealant's fluidity and adhesion, allowing it to fully penetrate and firmly adhere to the mesh, significantly improving the sealing performance of the mating surface. Even under extreme operating conditions, it effectively prevents oil leakage and ensures stable operation of the controller.

[0018] 2. Innovative design of the glue storage groove structure: In addition to the mesh structure, the utility model also cleverly adds a glue storage groove structure. This design aims to solve the problem of having nowhere to put the sealant after it is squeezed out of the joint surface in traditional sealing methods. The glue storage groove is located in the inner cavity area around the joint surface, which can collect and fix the sealant that overflows due to extrusion. Over time, the collected sealant will gradually solidify to form a continuous and dense sealing strip, providing an additional and reliable secondary sealing barrier for the controller's sealing system. This innovation not only avoids the risk of sealant contamination of the precision components inside the controller, but also further enhances the overall sealing effect of the controller.

[0019] 3. Precise control and optimized design of the sealing width of the joint surface and the sealing surface at the bolt are aimed at improving the sealing effect of the controller and providing strong guarantee for the long-term stable operation of the controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the sealing structure of the existing controller joint surface;

[0022] Figure 2 A schematic diagram of the mesh structure in the sealing structure of the joint surface of the controller housing of the utility model;

[0023] Figure 3 Schematic diagram of the sealing surface width of the sealing structure of the controller housing joint surface of the utility model;

[0024] Figure 4 A schematic diagram of the grid pattern on the joint surface of the controller housing joint surface sealing structure of the utility model;

[0025] Figure 5 A schematic diagram of the glue storage groove structure of the controller housing joint surface sealing structure of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments:

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0029] The controller housing joint surface sealing structure of this utility model includes a grid pattern structure and a glue reservoir. The grid pattern structure is provided on the sealing surface (i.e., the joint surface) between the upper and lower housings of the controller, enhancing the contact area and sealing effectiveness. This improves the reliability and durability of the seal by increasing surface roughness, forming microchannels, or enhancing the adhesion of the sealant.

[0030] To this end, the present invention sets parameters such as the specific shape, size, depth and distribution density of the grid pattern, and studies the influence of the above parameters on the sealing performance.

[0031] The grid pattern is in a cross-pattern. The grid pattern has a depth of 0.1-0.3 mm and a width of 0.5-1.2 mm. The grid pattern is evenly distributed across the entire bonding surface.

[0032] In the present invention, the grid pattern structure on the combined surface is as follows Figure 4 shown.

[0033] 1. Roughness control:

[0034] In this utility model, the mating surface roughness is precisely set to Rz6.3, a value selected based on extensive material testing and sealing performance analysis. Rz6.3 ensures effective sealant adhesion while preventing uneven sealant distribution and premature wear caused by excessive roughness.

[0035] 2. Grid pattern structure distribution:

[0036] Uniformity: The grid pattern structure must be evenly distributed across the entire joint surface to ensure that the sealant can evenly penetrate and fill each grid during press-fitting, forming a continuous sealing layer.

[0037] Directionality: The direction of the grid pattern structure can be designed to be consistent with the main sealing direction or to form a cross layout to enhance the fluidity and adaptability of the sealant under pressure, further improving the sealing effect.

[0038] Size and Spacing: The size (e.g., depth, width) and spacing of the grid pattern must be precisely calculated based on the sealant's characteristics and the controller's operating environment. Generally speaking, the grid pattern should be neither too deep nor too deep to avoid damaging the sealing surface, while the spacing should be moderate to ensure adequate sealant penetration and retention.

[0039] Machining Precision: The mesh structure requires high-precision equipment and technology to ensure that the shape, size, and position of each mesh line meet the design requirements. Surface quality must also be strictly controlled during the machining process to avoid defects such as burrs and cracks that could affect the sealing effect.

[0040] Cleaning and pretreatment: After the grid pattern structure is processed, the bonding surface needs to be thoroughly cleaned and pretreated to remove impurities and oil stains generated during the processing and improve the adhesion between the sealant and the bonding surface.

[0041] In the present invention, the glue storage groove structure on the combined surface is as follows Figure 5 shown.

[0042] In the shell design, the core optimization focuses on the sealing reinforcement strategy of the inner cavity joint surface. By cleverly introducing the C1 specification chamfered angle and the R1 specification rounded corner structure at the edge of the joint surface, an efficient glue storage groove is innovatively constructed on the sealing surface. The chamfered angle and rounded corner structure work closely with the upper shell to form a natural sealant retention space, that is, the glue storage groove, which is used to accommodate and store sealant. It can ensure that there is a sufficient amount of sealant during the sealing process and prevent the sealant from overflowing or losing when subjected to pressure or vibration, thereby improving the long-term stability of the seal. The glue storage groove can effectively capture and fix the extruded sealant during the box assembly process. This process realizes the secondary distribution and curing of the sealant, thereby constructing an additional dynamically adaptive sealing barrier on the basis of the original seal, significantly improving the overall sealing performance and reliability.

[0043] 1. Precise chamfer design: The C1 specification chamfer ensures that it can guide the flow of sealant while maximizing the capacity and efficiency of the glue tank without sacrificing structural strength.

[0044] 2. Protective chamfered corners: The R1 specification chamfered corner design is designed to minimize physical damage to the sealant layer, while optimizing fluid dynamics to ensure smoother and more uniform flow and curing of the sealant inside the box.

[0045] 3. Maintain internal cleanliness: By preventing the sealant from breaking and falling off, it effectively reduces internal contamination caused by tiny particles or residues, and maintains a high degree of cleanliness within the box, which is crucial to improving product quality and extending service life.

[0046] 4. Enhanced overall reliability: This design detail significantly enhances the overall sealing performance and durability of the shell structure, enabling it to maintain a stable sealing effect under various extreme working conditions, reducing maintenance costs and downtime caused by sealing problems, and improving the market competitiveness of the product.

[0047] Specifically, the shape, size, position, number of the glue storage grooves, and their coordination with the mesh structure. The shape of the glue storage groove is a 45° bevel structure. The size of the glue storage groove is a C1 chamfered angle and an R1 rounded angle. The glue storage groove is located on the upper and lower shell sealing surfaces within the controller's inner cavity. The number of the glue storage grooves is 1, which extends through the inner cavity of the mating surface. The glue storage groove and the mesh structure are coordinated in such a way that the mesh pattern and the glue storage groove are two structures, and together, they form a complete sealing structure.

[0048] At the same time, the utility model also designs the sealing surface width, such as Figure 3 shown.

[0049] 1. Precise Control of the Sealing Width of the Joint Surface: To ensure a reliable and durable seal, the sealing width of the joint surface is strictly set within a range of approximately 10mm. This width is selected based on a comprehensive consideration of factors such as the sealant material properties, the pressure distribution on the joint surface, and the controller's operating environment. By ensuring this standard sealing width, the sealant's adhesion and sealing capabilities are maximized, effectively preventing oil leakage and ensuring the normal operation of the controller.

[0050] 2. Special Considerations for the Sealing Surface at the Bolt: The design of the sealing surface in the bolt mounting area also requires special attention. While ensuring that the spatial layout is not affected, the sealing surface width at the bolt is required to be at least 6 mm. This design addresses localized stress concentrations and micro-gaps that may arise during bolt tightening. By increasing the sealing width in this area, a more robust sealing barrier is provided, preventing oil from leaking through these potential leak points. This also helps maintain the stability and durability of the bolted joint, reducing the risk of seal failure due to loosening or corrosion.

[0051] In this utility model, the joint width of the housing sealing surface is set to ensure uniformity and consistency. Properly defining the joint width helps control the amount and distribution of sealant applied, further improving the sealing effect. The specific numerical range of the joint width, the allowable deviation range, and how these parameters affect sealing performance are discussed.

[0052] During the 3D design process, the present invention ensures that the width of the joint surface is strictly maintained at more than 10mm to provide sufficient contact area and ensure the stability and sealing of the structure. At the same time, for the planning of the bolt position, the principle of retaining a net space of at least 6mm is adhered to to ensure that the bolts can be installed smoothly and the structural strength is enhanced. Under the premise that the mounting space conditions permit, it is ensured that all structural design data can meet the above strict requirements to achieve efficient and accurate design. In order to improve the sealing performance of the joint surface, the present invention introduces a mesh structure design. This structure uses a special mesh tool for fine processing to ensure that the mesh texture is evenly distributed and delicate, thereby optimizing the adhesion effect and distribution state of the sealant. During the 3D design stage, the glue storage tank structure was proactively optimized. By using a casting process to directly form the glue storage tank, the subsequent tedious processing steps are eliminated, the production cycle is significantly shortened, and production efficiency is improved. At the same time, this design also cleverly achieves lightweighting of the product, effectively reducing the overall weight, and meeting the multiple needs of modern product design for energy conservation, emission reduction, and performance improvement.

[0053] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A controller housing joint surface sealing structure, characterized in that: Including grid pattern structure and glue storage groove; The grid pattern structure is provided on the joint surface between the upper shell and the lower shell within the inner cavity of the controller. The grid pattern structure needs to be evenly distributed on the entire joint surface to ensure that the sealant can evenly penetrate and fill each grid during press-fitting to form a continuous sealing layer; the direction of the grid pattern structure is consistent with the main sealing direction or forms a cross layout; The glue storage groove is formed by the C1 specification chamfered corner and R1 specification rounded corner structure set on the edge of the joint surface, which are closely matched with the upper shell, and is used to accommodate and store sealant to prevent the sealant from overflowing or losing when subjected to pressure or vibration.

2. The controller housing joint surface sealing structure according to claim 1, characterized in that: The grid pattern structure has a depth of 0.1-0.3 mm and a width of 0.5-1.2 mm.

3. The controller housing joint surface sealing structure according to claim 1, characterized in that: The glue storage groove is a 45° bevel structure.

4. The controller housing joint surface sealing structure according to claim 1, characterized in that: The chamfered corners are of C1 specification, and the rounded corners are of R1 specification.

5. The controller housing joint surface sealing structure according to claim 1, characterized in that: The number of the glue storage groove is one, which runs through the inner cavity of the joint surface.

6. The controller housing joint surface sealing structure according to claim 1, characterized in that: The sealing width of the joint surface is less than 10 mm, and the sealing surface width at the bolt is at least 6 mm.

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