Novel shell mounting structure

Abstract

The utility model relates to the technical field of shell connecting structures, in particular to a novel shell mounting structure, which comprises a plurality of tenons, the upper cover comprises an upper cover body and a plurality of inverted buckles; the periphery of the shell is provided with a plurality of shell bosses, a plurality of limiting bosses and a plurality of through hole grooves; wherein the inverted buckle penetrates through the through hole groove, and meanwhile, the clamping tenon is installed in the limiting boss to limit the inverted buckle to move in the horizontal front-back direction and the horizontal left-right direction. The novel shell mounting structure provided by the utility model adopts the design of a quick mounting form, a tool is not needed in the mounting process of the cover plate, the disassembly is simple and convenient in the disassembly process, and the disassembly is completed when the tenons are separated from the limiting points. In addition, the upper cover inverted buckle, the shell limiting structure, the clamping tenon structure and other structures are all designed on the side face of the shell, and the side face structure is small and exquisite, so that the overall height and the side face space of the controller are reduced, and the structure of the controller is more compact.

Description

Technical Field

[0001] The utility model relates to the field of shell connection structures, in particular to a novel shell installation structure. Background Art

[0002] As an important part of the vehicle controller, the design and function of the vehicle controller cavity have an important impact on the overall performance and safety of the vehicle. The vehicle controller cavity is usually composed of regular or irregular shapes to adapt to different installation positions and internal component layouts. The vehicle controller collects various status information of the vehicle through sensors, and after processing, it controls the components in the cavity to achieve precise control of various vehicle systems.

[0003] In order to protect the internal components from failure caused by impurities, the motor controller will be designed as an assembly structure with a shell and a cover, and must meet a certain level of protection to ensure the sealing of the controller cavity. The generally required protection level is IP67. In order to achieve the cavity sealing effect, a certain pressure is required on the joint surface between the cavity cover and the shell to prevent the cover from deforming and affecting the sealing between the joint surfaces. In addition, the installation and fixing method of the cover will also affect the mode after the cover is installed, and then affect the vehicle NVH. In order to reduce the impact of the cover on the vehicle and ensure the comfort of the passengers, a reliable shell installation method is necessary.

[0004] For general controller cavities, the conventional design is to apply glue or glue on the joint surface between the shell and the upper cover, or to add sealing materials such as sealing pads, sealing rings, and metal sealing gaskets. The function of these sealing materials is to fill the gap between the joint surfaces and form a self-seal. However, the premise of self-sealing is that there needs to be a certain pre-tightening force between the sealing surfaces, so the shell and the upper cover also need to be fixed to provide the sealing material with a pre-tightening force that meets the sealing performance.

[0005] When designing the controller cover, the cover installation method generally uses screw fastening installation method, and screw holes are designed on the controller joint surface for fastening, thereby forming a certain pre-tightening force to ensure the close fit between the shell and the upper cover. However, there are two disadvantages of using screw fixing design method: first, the space of the screw head protrudes from the upper and side of the controller cover, resulting in a reduction in the gap between the controller and the whole machine, occupying the height and side direction of the controller; second, there are many screws and the installation is time-consuming, which prolongs the controller production cycle, reduces production efficiency, and requires investment in installation equipment, increasing costs. In order to solve the above problems, a new shell installation method is designed. Utility Model Content

[0006] The purpose of the utility model is to provide a new shell installation structure, aiming to overcome the defects of the prior art and solve the problems that when the shell of the prior art is installed with screws, the screws occupy the vertical and lateral space of the controller, and the installation of the screw group is time-consuming, thereby reducing production efficiency.

[0007] To this end, the utility model proposes a new shell installation structure, including: a plurality of tenons; an upper cover, the upper cover including an upper cover body and a plurality of undercuts; and a shell, the shell having a plurality of shell bosses, limiting bosses and through-hole grooves arranged around the shell; wherein the undercuts pass through the through-hole grooves, and the tenons are installed in the limiting bosses, so as to limit the displacement of the undercuts in the horizontal front-back and left-right directions.

[0008] As a preferred technical solution of the present application, the upper end surface of the shell is a shell sealing surface, and one side of the shell boss is arranged above the shell sealing surface and is higher than the shell sealing surface.

[0009] As a preferred technical solution of the present application, the other side of the housing boss is arranged on the side of the housing sealing surface and protrudes.

[0010] As a preferred technical solution of the present application, an upper cover boss is further provided on the upper cover, and the side surface of the upper cover boss protrudes by the thickness of the undercut, and the upper cover boss is used to arrange the undercut of half thickness.

[0011] As a preferred technical solution of the present application, the tenon includes a tenon groove, and the surface where the tenon groove is located is detachably matched with the limiting boss.

[0012] As a preferred technical solution of the present application, the housing boss and the upper cover cooperate to form a gap for the sealant or sealing ring to form a limit.

[0013] As a preferred technical solution of the present application, four limiting bosses are arranged on the lower surface of the shell boss, and the limiting bosses are used to install and fix the tenon and limit the horizontal displacement of the undercut in the front-back and left-right directions.

[0014] As a preferred technical solution of the present application, the undercut passes through the through-hole groove and is interference-fitted with the tenon to provide an axial force in a vertical direction for the undercut.

[0015] As a preferred technical solution of the present application, the undercut is an inverted "7" shaped structure.

[0016] As a preferred technical solution of the present application, the inverted "7"-shaped structure in the undercut is at an angle of 88° to 90°.

[0017] The main innovation of the novel shell installation structure provided by the utility model is that the inverted installation structure forms a sealing preload force by combining the inverted hook structure on the cover plate, the limiting structure on the shell and a separate tenon.

[0018] The beneficial effect of this proposal is that, thanks to the quick-install design, no tools are required during the installation of the cover, and the disassembly process is simple, and the disassembly is completed when the tenon is out of the limit point. In addition, since the upper cover buckle, shell limit and tenon structures are designed on the side of the shell and the side structure is small, it is beneficial to reduce the overall height and side space of the controller, making the controller structure more compact.

[0019] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of the novel housing installation structure of the utility model;

[0022] Figure 2 It is an exploded view of the novel housing installation structure of the utility model;

[0023] Figure 3 It is a partial enlarged view of the novel housing installation structure of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the upper cover in the novel shell installation structure of the utility model;

[0025] Figure 5 It is a partial schematic diagram of the upper cover in the novel housing installation structure of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the tenon in the novel housing installation structure of the utility model;

[0027] Figure 7 It is a structural schematic diagram of a shell in a novel shell installation structure of the utility model;

[0028] Figure 8 It is a partial schematic diagram of a shell in the novel shell installation structure of the utility model;

[0029] Description of Reference Numerals

[0030] 1. Upper cover; 2. Tenon; 3. Shell; 12. Undercut; 13. Upper cover body; 14. Upper cover boss; 21. Tenon groove; 31. Shell boss; 32. Limiting boss; 33. Through hole groove; 34. Shell sealing surface. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] like Figure 1 to Figure 3 As shown, the novel housing installation structure of the utility model comprises an upper cover 1, a tenon 2 and a housing 3. Among them, the upper cover 1 is provided with an undercut 12, and the housing 3 is provided with a housing boss 31, a limiting boss 32 and a through hole groove 33. The undercut 12 on the upper cover 1 passes through the through hole groove 33 of the housing 3, and then the tenon 2 is installed into the limiting boss 32 of the housing 3 to complete the installation.

[0033] like Figure 4 , Figure 5 As shown, the upper cover 1 is composed of an upper cover body 13, a plurality of undercuts 12 and a plurality of upper cover bosses 14. The undercuts 12 are characterized by a 90° inverted 7-shaped structure, and the inclination angle can also be 1-2° smaller. The side of the upper cover boss 14 protrudes by the thickness of the undercut 12. The upper cover boss 14 is used to arrange the undercut 12 of half thickness, saving the width of the housing sealing surface 34 and saving space.

[0034] like Figure 6 As shown, the tenon 2 includes a tenon groove 21. When the tenon 2 is assembled, the large surface of the tenon 2 with the groove cooperates with the limiting boss 32 on the housing 3, and the tenon 2 can be installed in place by pushing it into the limiting boss 32. The tenon groove 21 is used for disassembly. When disassembling, insert a tool into the tenon groove 21 to tilt the tenon 2 so that the bottom surface of the tenon 2 is higher than the limiting boss 32 to take the tenon out. The upper cover 1 can be disassembled by disassembling all the tenons 2.

[0035] like Figure 7 , Figure 8As shown, the shell 3 is surrounded by a shell boss 31, a limiting boss 32, a through-hole groove 33 and a shell sealing surface 34. One side of the shell boss 31 is arranged above the shell sealing surface 34 and is higher than the shell sealing surface 34, and the shell boss 31 and the upper cover 1 are installed and fit. The shell boss 31 and the upper cover 1 cooperate to form a gap for the sealant or the sealing ring to form a limit, so as to ensure a certain compression amount of the sealing ring to improve the sealing life. The other side of the shell boss 31 is arranged on the side of the shell sealing surface 34 and protrudes. Four limiting bosses 32 are arranged on the lower surface of the shell boss 31. The limiting boss 32 and the fixing tenon 2 are used to limit the displacement of the undercut 12 in the horizontal front and rear and left and right directions. The undercut 12 passes through the through-hole groove 33 and is interference-fitted with the tenon 2 to provide the undercut 12 with an axial force in the vertical direction, so that the upper cover 1 and the shell 3 fit tightly.

[0036] The new shell installation structure of the utility model includes undercuts, limiting bosses, through holes and tenons. The installation structure includes a cover plate, a shell and tenon parts. The controller cover plate is a metal shell, and the cast cover plate includes a cover plate and undercuts. The upper surface of the shell boss has a through hole and a limiting boss on the back of the joint surface. The tenon is plastic injection molding, and there is a disassembly groove on the back of the tenon.

[0037] In another embodiment, the upper cover uses a silent cover plate, so that the side buckle can be processed by sheet metal processing. In addition, the buckle through hole and the buckle on the shell are staggered at an angle, the tenon structure is cancelled, and the cover buckle is installed elastically.

[0038] The controller fixing method in this article does not use the traditional screw fixing method, but uses the undercut principle to form the pre-tightening force required for sealing. This installation method adopts an undercut fixing structure, and uses a limit structure and a tenon combination to provide a locking force on the joint surface, which can not only reduce the outer envelope size of the controller space, but also simplify the installation and disassembly process, reduce the number of installation tools and improve installation efficiency.

[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new housing installation structure, characterized in that: include: A plurality of latches (2); An upper cover (1), the upper cover (1) comprising an upper cover body (13) and a plurality of undercuts (12); and A shell (3), wherein a plurality of shell bosses (31), position-limiting bosses (32) and through-hole grooves (33) are arranged around the shell (3); The undercut (12) passes through the through hole (33), and the tenon (2) is installed in the limiting boss (32) to limit the displacement of the undercut (12) in the horizontal front-back and left-right directions.

2. The novel housing installation structure according to claim 1 is characterized in that: The upper end surface of the shell (3) is a shell sealing surface (34), and one side of the shell boss (31) is arranged above the shell sealing surface (34) and is higher than the shell sealing surface (34).

3. The novel housing installation structure according to claim 2 is characterized in that: The other side of the housing boss (31) is arranged on the side of the housing sealing surface (34) and protrudes.

4. The novel housing installation structure according to claim 1 is characterized in that: The upper cover (1) is also provided with an upper cover boss (14), the side surface of the upper cover boss (14) protruding by the thickness of the undercut (12), and the upper cover boss (14) is used to arrange the undercut (12) with half the thickness.

5. The novel housing installation structure according to claim 1 is characterized in that: The latch (2) comprises a latch groove (21), and the surface where the latch groove (21) is located is detachably matched with the limiting boss (32).

6. The novel housing installation structure according to claim 1 is characterized in that: The housing boss (31) and the upper cover (1) cooperate to form a gap for the sealant or the sealing ring to form a limit, thereby ensuring the sealing compression rate.

7. The novel housing installation structure according to claim 1 is characterized in that: Four limiting bosses (32) are arranged on the lower surface of the housing boss (31), and the limiting bosses (32) are used to install and fix the tenon (2) and limit the displacement of the undercut (12) in the horizontal front-back and left-right directions.

8. The novel housing installation structure according to claim 1 is characterized in that: The undercut (12) passes through the through hole groove (33) and is interference fit with the tenon (2), thereby providing an axial force in a vertical direction for the undercut (12).

9. The novel housing installation structure according to claim 1 is characterized in that: The undercut (12) is an inverted "7" shaped structure.

10. The novel housing installation structure according to claim 9 is characterized in that: The inverted "7"-shaped structure in the undercut (12) presents an angle of 88° to 90°.

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