Automotive steering controller and automobile

Abstract

The utility model discloses a vehicle steering controller which comprises a shell and a protective cover, the shell is provided with a notch, supporting parts located on the two sides of the notch and at least one side protrusion, and the protective cover is provided with a metal arm; the non-metal elastic buffer is arranged on a contact surface between the side wall of the protective cover and the supporting part and the side bulge; after assembly, the bottom of the side wall of the protective cover is pressed on the non-metal elastic buffering object on the surface of the supporting part, the side wall of the protective cover is in interference fit with the supporting part through the non-metal elastic buffering object, the side wall of the protective cover is in interference fit with the side protrusion, and the metal arm is bent and fixed to the notch. The high noise generated by friction in the running process of the automobile is avoided, galvanic corrosion is prevented, and the problem that more serious noise is generated by clearance fit due to long-term galvanic corrosion is further avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile controller, especially to a steering controller for vehicle and an automobile. BACKGROUND

[0002] Electric power steering controller is generally installed near the gear rack of steering column or steering rod, and the vibration is large during automobile driving, if the noise problem is not considered in the design of the steering device, additional noise may be generated, which affects driving safety and comfort.

[0003] Especially, the shell and the protective cover of the electric steering controller are both metal materials. The shell sometimes also functions as a radiator, which is generally made of aluminum alloy, and the protective cover is generally made of carbon steel. During assembly, the PCB assembly is fixed on the shell by screws, and then the protective cover is assembled. Since the two metals are in direct contact, the product generates noise due to the abrasion of the two metals caused by vibration during automobile driving, which affects driving safety and comfort. In addition, subsequent galvanic corrosion caused by the contact of different metals makes the originally interference fit smaller, disappears or even becomes a clearance fit, which may cause more serious noise problems in the future.

[0004] Therefore, it is an urgent technical problem for those skilled in the art to develop a tightly assembled structure of a low-noise shell and protective cover to increase driving safety and comfort. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the above technical defects, the utility model aims at providing a steering controller for vehicle and an automobile. The utility model is provided with a notch, support portions on both sides of the notch and at least one side protrusion on the shell, and a metal arm is arranged on the protective cover. By laying a non-metallic elastic buffer at the direct contact position, sharp noise generated by friction during automobile operation is avoided, and galvanic corrosion is prevented, thereby avoiding more serious noise problems caused by clearance fit due to long-term galvanic corrosion.

[0006] The utility model discloses a steering controller for vehicle, including:

[0007] Shell and protective cover, the shell is provided with notch, support portion in both sides of the notch and at least one side protrusion, the protective cover is provided with metal arm on it;

[0008] Non-metallic elastic buffer is arranged on the contact surface between the side wall of the protective cover and the support portion and the side protrusion;

[0009] After assembly, the bottom of the side wall of the protective cover is pressed on the non-metallic elastic buffer on the surface of the supporting part, the side wall of the protective cover and the supporting part are in interference fit through the non-metallic elastic buffer, the side wall of the protective cover and the side edge protrusion are in interference fit, and the metal arm is bent and fixed in the notch.

[0010] Optionally, the supporting part extends 0.1mm-1mm to the inside of the shell and the assembly direction of the protective cover respectively to form a groove for accommodating the non-metallic elastic buffer.

[0011] Optionally, the non-metallic elastic buffer is laid on the bottom of the inner cavity of the groove, the inner cavity side wall and the surface of the side edge protrusion.

[0012] Optionally, the inner side wall and the bottom of the side wall of the protective cover in contact with the supporting part and the side edge protrusion are laid with the non-metallic elastic buffer.

[0013] Optionally, the non-metallic elastic buffer comprises one or more of elastic paint, fiber gasket and resin.

[0014] The utility model discloses still a kind of car, including the steering controller for vehicle as any one of the utility model first aspect disclosed.

[0015] After adopting the above technical scheme, compared with prior art, the following beneficial effects are obtained:

[0016] 1. The utility model is provided with non-metallic elastic buffer at 2a, 3a and 4a, to avoid sharp noise caused by friction between protective cover and shell during vehicle operation, and to prevent galvanic corrosion.

[0017] 2. In the whole life cycle of the product, the interaction force between the side edge protrusion and the metal arm originally in interference fit disappears or becomes clearance fit to cause more serious noise problem.

[0018] 3. The utility model avoids that metal particles are produced when protective cover side wall scrapes side edge protrusion on shell during strong vibration during vehicle operation, and these particles entering the product interior can cause PCB short circuit risk in vehicle interior.

[0019] 4. Driving safety and comfort are improved. DRAWINGS

[0020] Figure 1 To meet the structure of the utility model for vehicle steering controller of the utility model one embodiment, the structure diagram of the utility model for vehicle steering controller is shown in the figure.

[0021] Figure 2The sectional view of the metal arm and the notch cooperation position after the product of the utility model is assembled according to an embodiment of the utility model;

[0022] Figure 3 The installation position drawing of the protective cover of the vehicle steering controller of the utility model according to an embodiment of the utility model;

[0023] Figure 4 The sectional view of the metal arm and the notch cooperation position after the product of the utility model is assembled according to an embodiment of the utility model;

[0024] Figure 5 The partial view (1a) of the protective cover and the shell cooperation position according to an embodiment of the utility model;

[0025] Figure 6 The partial view (1a) of the protective cover and the shell cooperation position according to an embodiment of the utility model;

[0026] Figure 7 The sectional view of the metal arm and the notch cooperation position after the product of the utility model is assembled according to an embodiment of the utility model;

[0027] Figure 8 The noise test result curve diagram of not laying the nonmetallic elastic buffer;

[0028] Figure 9 The noise test result curve diagram after laying the nonmetallic elastic buffer;

[0029] Reference signs:

[0030] 1 - shell;

[0031] 11 - nonmetallic elastic buffer;

[0032] 11 -1, 11 -2, 11 -3 - nonmetallic elastic buffer;

[0033] 12 - notch;

[0034] 13 - support part;

[0035] 13 -1, 13 -2 - support part;

[0036] 14 - PCB circuit board;

[0037] 15 - side edge protrusion;

[0038] 2 - protective cover;

[0039] 21 - metal arm;

[0040] 22 - side wall of protective cover;

[0041] 221-1, 221-2 - protective cover side wall bottom;

[0042] 22-1, 22-2 - side wall bottom;

[0043] 22-3 protective cover inner side wall;

[0044] 3-1, 3-2 - groove. DETAILED DESCRIPTION

[0045] The advantages of the present application are further illustrated in conjunction with the accompanying drawings and specific examples.

[0046] The exemplary embodiments will be described in detail herein below with reference to the accompanying drawings. In the following description, unless otherwise expressed and limited, the same numbers refer to the same elements throughout the drawings and the description. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0047] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used in the present disclosure and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0048] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0049] In the description of the present application, unless otherwise specified and limited, it is to be noted that the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, or the communication between two elements, it can be direct connection or indirect connection through intermediate medium, and the specific meaning of the above terms can be understood according to the specific circumstances by those skilled in the art.

[0050] In the subsequent description, the suffix such as "module", "component" or "unit" used to represent elements is only for the convenience of description of the present application, and has no specific meaning in itself. Therefore, "module" and "component" can be used interchangeably.

[0051] The utility model provides a kind of vehicle steering controller, refer to Figure 1 , Figure 1 It shows the structure diagram of a kind of vehicle steering controller of the utility model.The vehicle steering controller includes: shell 1, protective cover 2 and the PCB circuit board 14 being arranged in shell 1, the shell 1 is provided with recess, the support portion 13 being located at the recess both sides and at least one side protrusion 15, the protective cover 2 is provided with metal arm 21.

[0052] Figure 2 For product assembly, side protrusion 15 and protective cover 2 sidewall cooperation (2a) section view; Figure 3 For the installation position drawing of the protective cover 2 of vehicle steering controller; Figure 4 For product assembly, metal arm 21 and recess cooperation section view.In order to facilitate the description of main body structure, Figure 2 、 Figure 3 And Figure 4 Not shown in non-metallic elastic buffer.

[0053] Refer to Figure 2 Direct assembly, shell 1 and protective cover 2 between, at 2a lateral is slightly interference fit.This is because the protective cover sidewall is extruded outward by side protrusion 15 on shell 1 after assembly, so that relatively tight and firm lateral cooperation is obtained;Meanwhile, as Figure 1 As shown in the up-down direction, protective cover sidewall bottom 221-1,221-2 directly contact the support portion 13-1,13-2 of shell, and play a limiting role.As Figure 3 3a and 4a in the place are directly contacted after installation.

[0054] Refer to Figure 4 Protective cover 2 is provided with several protruding metal arms 21 around, and is clamped at shell 1 lower surface 5a after bending, so that the cooperation in up-down direction is completed.

[0055] In this design, if non-metallic elastic buffer is not set, the following several problems will be generated: first, since the material of shell and protective cover is metal, and they are directly contacted, installed on the car, with the vibration of the car, the shell and protective cover of the product exist due to mutual friction and generate noise, the position of friction is mainly 2a, 3a and 4a, which will affect the driving safety and comfort.

[0056] Secondly, automotive steering controllers have EMC requirements. The protective cover is generally made of metal, commonly carbon steel, while the housing is made of aluminum alloy. Since contact between different metals can cause galvanic corrosion (a type of electrochemical corrosion), especially at the contact points (2a, 3a, and 4a), the vibration and friction during vehicle operation prevent the formation of a stable alumina protective layer on the housing surface. This fails to prevent the continued galvanic corrosion, shortening the product's lifespan and potentially causing accidents. Furthermore, as corrosion progresses, the original interference fit may turn into a gap, increasing the product's noise.

[0057] In addition, due to the interference fit between the side wall of the protective cover and the side protrusion of the housing, when a strong vibration occurs during the operation of the car, the side wall of the protective cover will scrape against the side protrusion of the housing, generating metal particles. These particles entering the interior of the product may cause a short circuit risk to the PCB inside the car.

[0058] Furthermore, such as Figure 1 As shown, the vehicle steering controller of this utility model is also provided with a non-metallic elastic buffer 11. The non-metallic elastic buffer 11 is disposed on the contact surface between the side wall 22 of the protective cover and the support part 13 and the side protrusion 15. This utility model provides non-metallic elastic buffers 11 at 2a, 3a and 4a to avoid direct contact between the protective cover 2 and the housing 1.

[0059] Figure 5 It shows Figure 1 A partial view of the mating point (1a) between the protective cover 2 and the housing 1, according to an embodiment of the present invention. Figure 5 After assembly, the bottom of the side wall of the protective cover 2 is pressed against the non-metallic elastic buffer 11 on the surface of the support part 13, and the side wall 22 of the protective cover and the support part 13 are interference-fitted by the non-metallic elastic buffer 11; the metal arm 21 is bent and fixed at the recess 12, and the side wall 22 of the protective cover is interference-fitted with the side protrusion 15.

[0060] This invention uses a non-metallic elastic buffer to separate the housing and protective cover made of different metal materials at points 2a, 3a, and 4a, avoiding sharp noise generated by friction during vehicle operation, thus preventing galvanic corrosion and improving comfort and safety. Furthermore, throughout the product's lifespan, it prevents the original interference fit between the side protrusion and the metal arm from disappearing or becoming a clearance fit due to corrosion, which could lead to more serious noise problems. It also avoids the risk of metal powder entering the PCB circuit board and causing short circuits due to long-term wear of the metal contact surface between the housing and the protective cover.

[0061] See Figure 7, in addition to the side wall of the protective cover is extruded outward by the protrusion to form an interference fit, the non-metallic elastic buffer 11 also has a certain elasticity and can also produce interference force, and then the side wall of the protective cover and the support portion of the shell 1 are also formed by the non-metallic elastic buffer 11 (contact surfaces 6a, 7a) The interference fit can ensure that the shell 1 and the protective cover are more tightly matched, without shaking, and without noise. Similarly, as shown in Figure 2 , in addition to the interference force generated by the extrusion of the protective cover, the side wall of the protective cover and the protrusion 15 are also further interference fitted by the non-metallic elastic buffer.

[0062] In some optional schemes, the non-metallic elastic buffer 11 includes one or more of elastic paint, fiber gasket and resin. However, the utility model is not limited thereto, and any material that meets the non-metallic elastic buffer of the utility model is within the protection scope of the utility model. In specific laying, the elastic paint can be sprayed; it is easy to lay, has the advantages of firm adhesion and low cost; the fiber gasket is laid by the back glue method, has the advantages of good durability, not easy to produce debris, low cost, etc.; the resin can be injection molded on the shell, has the advantages of easy laying and firm adhesion. In specific application, the resin is preferred, which is easy to lay and has high automation degree.

[0063] The support portion extends to the inside of the shell 1 and the assembly direction of the protective cover 2 by 0.1mm-1mm, forming grooves 3-1, 3-2, as shown in Figure 6 , after assembly, the corresponding groove inner wall 3-1, 3-2 contacts the bottom of the protective cover 2, and the corresponding support portion of the shell becomes the support portion, and the groove is used to accommodate the non-metallic elastic buffer 11. The extension size of the support portion 13 is determined according to the thickness of the selected non-metallic elastic buffer 11. Generally, the thickness of the elastic paint is between 0.1-0.5, and the thickness of the resin and the fiber gasket is between 0.5-1mm, so the extension size range in this embodiment is 0.1mm-1mm, to ensure that the elastic paint, the fiber gasket and the resin can be laid in the groove as the non-metallic elastic buffer, and also to ensure a certain durability.

[0064] In an example embodiment, the non-metallic elastic buffer 11-1, 11-2, 11-3 is laid on the shell 1 as a most preferred and convenient scheme. That is, the non-metallic elastic buffer 11-1, 11-2, 11-3 is laid on the groove inner cavity bottom, inner cavity side wall and the surface of the protrusion 15, respectively, as shown in Figure 5As shown, the bottom 221-2 of the side wall of the protective cover is pressed on the non-metallic elastic buffer 11-1 and 11-2 on the shell support part 13, and the metal arm 21 is buckled at the notch 12 of the shell to complete the fixation in the up-down direction. The side wall of the protective cover is pressed on the non-metallic elastic buffer 11-3 on the side protrusion 15, and is positioned as a lateral support.

[0065] In another example embodiment, the non-metallic elastic buffer is laid on the inner side wall 22-3 and the surface of the side wall bottom 22-1 and 22-2 of the protective cover (the angle of the non-metallic elastic buffer is not shown in the figure), see Figure 6 Specifically, the inner side wall and the side wall bottom 22-1 and 22-2 of the protective cover 2 in contact with the support part and the side protrusion are all laid with the non-metallic elastic buffer 11.

[0066] In other example embodiments, the surface of the inner side wall and the side wall bottom of the protective cover, as well as the surface of the groove inner cavity bottom, the side wall and the side protrusion are all laid with the non-metallic elastic buffer. This embodiment is an optional implementation, and the first two laying schemes are preferred in the utility model for cost considerations.

[0067] The utility model carries out the noise test to the vehicle steering controller provided in the above-mentioned embodiment, and the results all show that: compared with the vehicle steering controller without setting the non-metallic elastic buffer, the noise generated by the vehicle steering controller after setting the layer structure is obviously reduced.

[0068] Specifically, Figure 8 , Figure 9 The noise test experimental data of one of the specific embodiments are shown, and the data show that: after laying the non-metallic elastic buffer by using the scheme shown in the utility model, the noise is significantly reduced compared with before laying.

[0069] In summary, the utility model sets the notch, the support part on both sides of the notch and at least one side protrusion on the shell, sets the metal arm on the protective cover, lays the non-metallic elastic buffer at 2a, 3a and 4a in direct contact, and the side wall of the protective cover is extruded outward by the side protrusion on the shell after assembly, forming a close and firm lateral cooperation, a plurality of protruding metal arms are arranged around the protective cover, buckled on the lower surface 5a of the shell after bending, thereby completing the close cooperation in the up-down direction. The non-metallic elastic buffer is arranged at 2a, 3a and 4a in direct contact, which avoids the sharp noise generated by friction during the operation of the automobile, prevents the occurrence of galvanic corrosion, and further avoids the more serious noise problem caused by the long-term galvanic corrosion in the gap cooperation.

[0070] The utility model also discloses an automobile comprising the vehicle steering controller disclosed in the first aspect of the utility model.

[0071] It should be noted that the embodiments of the present application have better implementation, and do not limit the present application in any form, and any skilled person in the art can change or modify the equivalent effective embodiments by using the above disclosed technical content, as long as it does not deviate from the content of the technical scheme of the present application, and any modification or equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.

Claims

1. A vehicle steering controller, characterized in that, include: A housing and a protective cover, wherein the housing is provided with a notch, support portions located on both sides of the notch and at least one side protrusion, and the protective cover is provided with a metal arm; A non-metallic elastic buffer is disposed on the contact surface between the side wall of the protective cover and the support portion and the side protrusion; After assembly, the bottom of the side wall of the protective cover presses against the non-metallic elastic buffer on the surface of the support part. The side wall of the protective cover and the support part are interference-fitted by the non-metallic elastic buffer. The side wall of the protective cover is interference-fitted with the side protrusion. The metal arm is bent and fixed at the recess.

2. The vehicle steering controller as described in claim 1, characterized in that, The support extends 0.1mm to 1mm towards the inner side of the housing and the assembly direction of the protective cover, respectively, forming a groove, which is used to accommodate the non-metallic elastic buffer.

3. The vehicle steering controller as described in claim 2, characterized in that, The non-metallic elastic buffer is laid at the bottom of the groove cavity, the inner wall of the cavity, and the side protruding surface.

4. The vehicle steering controller as described in claim 2 or 3, characterized in that, The non-metallic elastic cushioning material is laid on the inner sidewall and bottom of the sidewall that contact the support and the side protrusion on the protective cover.

5. The vehicle steering controller as described in claim 1, characterized in that, The non-metallic elastic cushioning material includes one or more of elastic paint, fiber pads, and resin.

6. A car, characterized in that, Including the vehicle steering controller as described in any one of claims 1-5.

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