Vehicle controller and vehicle

Abstract

The utility model relates to the technical field of vehicle manufacturing, particularly provides a vehicle controller and a vehicle, and aims to solve the problems that the structural stability of the vehicle controller is reduced and the risk of failure is increased due to the fact that a fastening screw of an existing vehicle controller has serious torque attenuation as time goes on. For this purpose, the vehicle controller of the utility model comprises a housing used for placing electronic devices of the vehicle controller, and the housing is provided with a first fixing hole; the top cover is used for sealing the opening of the shell, a protruding elastic structure is arranged on the top cover, and a second fixing hole is formed in the elastic structure; and the fixing piece passes through the first fixing hole and the second fixing hole and compresses the elastic structure so as to fix the shell and the top cover. The elastic structure on the top cover can be compressed while the fixing piece penetrates through the first fixing hole and the second fixing hole to fix the shell and the top cover, and the counter-acting force of the elastic structure acts on the fixing piece, so that torque attenuation of the fixing piece is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle manufacturing technical field, specifically provide a kind of vehicle controller and vehicle. BACKGROUND

[0002] Vehicle controller is the key component in automobile, it is responsible for management and coordination vehicle various functions, including driver intent analysis, whole vehicle mode management, whole vehicle energy management, drive control, brake control and fault diagnosis and processing etc. Vehicle controller simplifies the electronic electrical architecture (EEA) of vehicle by integrating the function of multiple electronic control units (ECU), thereby reducing the complexity and weight of wiring harness, improving the efficiency and reliability of whole vehicle, through the centralized management of power system, energy recovery system and accessory, vehicle controller can optimize energy use, improve fuel efficiency or battery endurance, through real-time monitoring vehicle state, including speed, acceleration, brake system and power battery state, ensure the safe operation of vehicle under various working conditions etc.

[0003] The existing vehicle controller usually includes a housing and electronic devices arranged inside the housing, the opening of the housing is capped by a soft structure cover plate (such as a plastic cover plate), and the central region of the plastic cover plate is fixed to the shell of the housing by a fastening screw. However, for some controllers with relatively complex functions, there are many electronic devices inside, and the housing and the plastic cover plate are also relatively large. When arranging the fastening screw in the central region, the torque decay of the fastening screw will be serious over time, which reduces the structural stability of the vehicle controller and increases the risk of failure. Therefore, how to avoid torque decay of the screw in the central region of the vehicle controller has become a technical problem to be solved in the field.

[0004] Therefore, there is a need in the field to provide a new vehicle controller and vehicle to solve the above problems. SUMMARY

[0005] The utility model aims at solving the above technical problem, i.e., solving the problem that the fastening screw of the existing vehicle controller will have serious torque decay over time, which reduces the structural stability of the vehicle controller and increases the risk of failure.

[0006] In a first aspect, the utility model provides a vehicle controller, which comprises: a shell for placing electronic devices of the vehicle controller, the shell is provided with a first fixing hole; a top cover for capping the opening of the shell, the top cover is provided with a convex elastic structure, the elastic structure is provided with a second fixing hole; a fixing member is fixed to the shell and the top cover by the first fixing hole and the second fixing hole and compresses the elastic structure.

[0007] In the specific embodiment of the vehicle controller, the fixing member is a screw, the first fixing hole is a threaded hole, the second fixing hole is a through hole, a step is arranged between the flange and the screw rod of the screw, the flange of the screw abuts on the top surface of the elastic structure, the screw rod of the screw is embedded in the first fixing hole, and the step of the screw is embedded in the second fixing hole.

[0008] In the specific embodiment of the vehicle controller, the height of the step is H, and the thickness of the elastic structure is T, wherein H < T.

[0009] In the specific embodiment of the vehicle controller, the relationship between the height H of the step and the thickness T of the elastic structure satisfies the relationship 0.95T ≤ H < T.

[0010] In the specific embodiment of the vehicle controller, the relationship between the height H of the step and the thickness T of the elastic structure satisfies the relationship 0.94T ≤ H < T.

[0011] In the specific embodiment of the vehicle controller, a chamfer is arranged on the elastic structure, the chamfer is arranged at an end surface of the second fixing hole on the side facing the bottom surface of the flange, and a sealing ring is arranged in a space surrounded by the chamfer, the bottom surface of the flange and the side surface of the step.

[0012] In the specific embodiment of the vehicle controller, the depth of the chamfer is not greater than 1 / 2 of the thickness of the elastic structure.

[0013] In the specific embodiment of the vehicle controller, a fixing column is arranged in the middle region of the shell, the first fixing hole is arranged on the fixing column, the corresponding elastic structure is arranged in the middle region of the top cover, and the fixing member is fixed to the shell and the top cover by compressing the elastic structure through the first fixing hole and the second fixing hole.

[0014] In the specific embodiment of the vehicle controller, the elastic structure is convex in the direction of the top surface of the top cover, or is convex in the direction of the bottom surface of the top cover, or is convex in the direction of both the top surface and the bottom surface of the top cover.

[0015] The utility model further provides a vehicle, the vehicle includes the vehicle controller of any one in the above technical scheme.

[0016] In the installation process of the vehicle controller, the top cover of the vehicle controller is placed on the shell, meanwhile, the second fixing hole on the elastic structure of the top cover is aligned with the first fixing hole on the shell, then the top cover and the shell are fixed by the fixing member (for example, screw) sequentially penetrating through the second fixing hole and the first fixing hole, in the fixing process, the screw compresses the elastic structure, after the fixing is completed, the elastic structure is in the compressed state, at this time, the reaction force of the elastic structure acts on the screw, so that the connection between the screw and the first fixing hole is more compact, and with the passage of time, the reaction force of the elastic structure continuously acts on the screw to play a reinforcing role, thereby solving the problems that the fastening screw of the existing vehicle controller has serious torque decay with the extension of time, the structural stability of the vehicle controller is reduced, and the risk of fault occurrence is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0018] Figure 1 is an exploded view of the vehicle controller of the present application;

[0019] Figure 2 is a structural schematic view of the screw of the vehicle controller of the present application;

[0020] Figure 3 is a front view of the vehicle controller of the present application;

[0021] Figure 4 is a half-sectional view of the vehicle controller of the present application, wherein Figure 4 is Figure 3 A-A in the above figure;

[0022] Figure 5 is a local enlarged view of the connection between the top cover, the screw and the fixed column of the present application.

[0023] LIST OF REFERENCE NUMERALS

[0024] 1-vehicle controller; 11-shell; 111-fixed column; 112-first fixing hole; 12-top cover; 121-elastic structure; 122-second fixing hole; 123-chamfer; 13-screw; 131-flange; 132-step; 133-screw rod; 14-sealing ring. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments as needed in order to adapt to specific application occasions. For example, although the description in the specification is described by XXX, the present application can obviously use other various materials of the elastic structure, such as rubber, as long as the elastic structure can provide a certain supporting strength while deforming.

[0026] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and is not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] First, the existing vehicle controller is described. The existing vehicle controller usually includes a shell and electronic devices arranged inside the shell, and the opening of the shell is covered by a soft structure cover plate (such as a plastic cover plate), and the center area of the plastic cover plate is fixed to the shell of the shell by a fastening screw. However, for some controllers with relatively complex functions, the internal electronic devices are relatively more, and the shell and the plastic cover plate are also relatively large. When arranging the fastening screw in the center area, there is a problem of serious torque attenuation of the fastening screw with the extension of time, which reduces the structural stability of the vehicle controller and increases the risk of failure. Therefore, how to avoid the torque attenuation of the screw in the center area of the vehicle controller has become a technical problem to be solved in the field. For this purpose, the following embodiments are proposed.

[0029] As Figures 1-5The utility model discloses a vehicle controller 1, for solving the problem that the torque attenuation of the fastening screw 13 of the existing vehicle controller 1 is serious with the extension of time, causes the structural stability of the vehicle controller 1 to reduce, and the risk of failure to become big, the vehicle controller 1 of the utility model includes:

[0030] The shell 11 is used to place the electronic device of the vehicle controller 1, and the first fixing hole 112 is arranged on the shell 11, the first fixing hole 112 is a threaded hole, the middle region of the shell 11 is provided with a fixing column 111, and the first fixing hole 112 is arranged on the fixing column 111.

[0031] The top cover 12 is used to cover the opening of the shell 11, and the elastic structure 121 is arranged on the top cover 12, the second fixing hole 122 is arranged on the elastic structure 121, the second fixing hole 122 is a through hole, the thickness of the elastic structure 121 is T, the elastic structure 121 is arranged on the middle region of the top cover 12, and the elastic structure 121 and the second fixing hole 122 arranged thereon are correspondingly arranged with the fixing column 111 on the shell 11 and the first fixing hole 112 arranged thereon, so that after the top cover 12 is arranged on the shell 11, the second fixing hole 122 can correspond to the position of the first fixing hole 112.

[0032] The fixing piece is a screw 13, the head of the screw 13 is provided with a flange 131, the tail of the screw 13 is provided with a screw rod 133, the flange 131 of the screw 13 is provided with a step 132 between the screw rod 133, the height of the step 132 is H, and H < T, after installation, the bottom surface of the flange 131 of the screw 13 abuts on the top surface of the elastic structure 121, the screw rod 133 of the screw 13 is rotatably embedded in the first fixing hole 112 and is screwed with the screw thread in the first fixing hole 112 through the screw thread on the screw rod 133, and the step 132 of the screw 13 is embedded in the second fixing hole 122.

[0033] In the case of using the above-mentioned embodiment, the installation process of the vehicle controller 1 of the utility model is introduced. First, the top cover 12 is covered on the shell 11, the second fixing hole 122 on the elastic structure 121 of the top cover 12 is aligned with the first fixing hole 112 on the fixed column 111 of the shell 11, then the screw 13 is sequentially threaded through the second fixing hole 122 and the first fixing hole 112, the screw rod 133 of the screw 13 is screwed into the first fixing hole 112 on the fixed column 111, after the screw rod 133 is screwed into the first fixing hole 112, the step 132 of the screw 13 is embedded into the second fixing hole 122 of the elastic structure 121, at the same time, the bottom surface of the flange 131 abuts on the top surface of the elastic structure 121, and because the height H of the step 132 is less than the thickness T of the elastic structure 121, therefore, after the screw rod 133 is rotated in place in the first fixing hole 112, the flange 131 will extrude the elastic structure 121 to make the elastic structure 121 compressively deform, the elastically deformed elastic structure 121 will generate an upward reaction force on the flange 131 of the screw 13, the reaction force acting on the flange 131 will make the screw 13 have an upward movement trend, so that the screw thread on the screw rod 133 is more tightly screwed with the screw thread in the first fixing hole 112, with the passage of time, the reaction force of the elastic structure 121 continuously acts on the screw 13, thereby solving the problem that the existing fastening screw 13 of the vehicle controller 1 will have serious torque decay with the extension of time, resulting in the reduction of the structural stability of the vehicle controller 1 and the increase of the risk of failure.

[0034] In addition, regarding the aforementioned elastic structure 121 protruding, those skilled in the art can understand that the elastic structure 121 can protrude towards the top surface of the top cover 12, or can protrude towards the bottom surface of the top cover 12, or can protrude towards the top surface and the bottom surface of the top cover 12 at the same time, those skilled in the art can adjust according to actual needs, and the utility model does not make specific limitations thereon.

[0035] Further, the aforementioned mentioned that due to the height H of the step 132 is less than the thickness T of the elastic structure 121, thus when the screw 13 is rotated into place in the first fixing hole 112, the flange 131 of the screw 13 will extrude the elastic structure 121 to make the elastic structure 121 compressively deformed, the relationship between the height H of the step 132 and the thickness T of the elastic structure 121 will also affect the fixing strength between the top cover 12 and the shell 11 of the vehicle controller 1. Specifically, when the difference between H and T is large, at this time even if the elastic structure 121 reaches its deformation limit under the extrusion of the screw 13, the bottom surface of the step 132 cannot abut at the end surface of the first fixing hole 112, so that the flange 131 of the screw 13 is connected with the fixing column 111 only through the elastic structure 121, and the fixing strength between the top cover 12 and the shell 11 cannot be guaranteed. For this reason, the embodiment is proposed, in which the relationship between the height H of the step 132 and the thickness T of the elastic structure 121 satisfies the relationship 0.95T≤H<T.

[0036] The above setting mode has the advantages that, taking the plastic as an example, the deformation range of the plastic is generally related to its elastic modulus and yield strength without destroying the elastic properties of the plastic. The elastic modulus is the ability of the material to resist deformation during force deformation, and the yield strength is the stress value at which the material begins to produce permanent deformation. Within the elastic limit, the plastic can be deformed and restored to its original state after the stress is removed. Therefore, by setting the height H of the step 132 to be not less than 5% of the thickness T of the elastic structure 121, when the deformation amount of the elastic structure 121 reaches 5% of its thickness T, the bottom surface of the step 132 will abut at the end surface of the first fixing hole 112, on the one hand, avoiding the further deformation of the elastic structure 121 leading to the deformation amount exceeding its elastic modulus and yield strength, resulting in plastic deformation of the elastic structure 121 and the inability to recover, on the other hand, the step 132 of the screw 13 can abut at the end surface of the first fixing hole 112, improving the fixing strength between the top cover 12 and the shell 11.

[0037] Further, the height tolerance of the screw 13, the thickness tolerance of the elastic structure 121, the tolerance of the distance between the end surface of the first fixing hole 112 and the mounting surface of the elastic structure 121, and the deformation amount of the elastic structure 121 caused by the temperature difference of the environment, etc. will all affect the total amount of compression of the elastic structure 121, therefore, on the basis of the aforementioned embodiment, the relationship between the height H of the step 132 and the thickness T of the elastic structure 121 in the embodiment satisfies the relationship 0.94T≤H<T, that is, 1%T of error space is provided for the factors that may affect the total amount of compression of the elastic structure 121, thereby avoiding the case that the height of the step 132 is too high to effectively fix the shell 11 and the top cover 12 due to the error caused by the above factors.

[0038] AsFigure 3 、 Figure 4 As shown in FIG. 1, in one possible implementation, the elastic structure 121 is provided with a chamfer 123, which is arranged at the end face of the second fixing hole 122 towards the bottom face of the flange 131, and a sealing ring 14 is arranged in the space surrounded by the chamfer 123, the bottom face of the flange 131 and the side face of the step 132, and the depth of the chamfer 123 is not greater than 1 / 2 of the thickness of the elastic structure 121.

[0039] The above arrangement has the advantage that by arranging the chamfer 123 on the elastic structure 121 and arranging the sealing ring 14 in the space surrounded by the chamfer 123, the bottom face of the flange 131 and the side face of the step 132, the tightness of the connection between the screw 13 and the elastic structure 121 is further improved, and water vapor is prevented from entering the vehicle controller 1 from the gap between the screw 13 and the elastic structure 121 to damage the electronic devices. In addition, in order to reduce the impact on the elastic performance of the elastic structure 121, the depth of the chamfer 123 is set to be not greater than 1 / 2 of the thickness of the elastic structure 121 in this embodiment, so as to improve the tightness of the connection between the screw 13 and the elastic structure 121 while ensuring the elastic performance of the elastic structure 121. In addition, those skilled in the art can also improve the chamfer 123 to a common shape such as a square groove or a semicircular groove, as long as the sealing ring 14 can be arranged in the space surrounded by the chamfer 123, the bottom face of the flange 131 and the side face of the step 132. These changes are within the protection scope of the utility model.

[0040] It should be noted that the above embodiments are only used to illustrate the principles of the utility model, and are not intended to limit the protection scope of the utility model. Those skilled in the art can adjust the above structure without departing from the principles of the utility model, so that the utility model can be applied to more specific application scenarios.

[0041] In addition, the utility model also provides a vehicle, which has the vehicle controller 1 mentioned in any of the above embodiments.

[0042] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the utility model, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A vehicle controller characterized by comprising: The vehicle controller comprises: a housing for placing electronic devices of the vehicle controller, the housing being provided with a first fixing hole; a top cover for covering an opening of the housing, the top cover being provided with a raised elastic structure, the elastic structure being provided with a second fixing hole; a fixing member passing through the first fixing hole and the second fixing hole and compressing the elastic structure to fix the housing and the top cover.

2. The vehicle controller of claim 1, wherein, The fixing member is a screw, the first fixing hole is a threaded hole, the second fixing hole is a through hole, a step is arranged between a flange and a screw rod of the screw, the flange of the screw abuts on a top surface of the elastic structure, the screw rod of the screw is embedded in the first fixing hole, and the step of the screw is embedded in the second fixing hole.

3. The vehicle controller of claim 2, wherein, A height of the step is H, and a thickness of the elastic structure is T, where H < T.

4. The vehicle controller of claim 3, wherein, A relationship between the height H of the step and the thickness T of the elastic structure satisfies a relationship formula 0.95T ≤ H < T.

5. The vehicle controller of claim 3, wherein, A relationship between the height H of the step and the thickness T of the elastic structure satisfies a relationship formula 0.94T ≤ H < T.

6. The vehicle controller of claim 2, wherein, A chamfer is arranged on the elastic structure, the chamfer is arranged at an end surface of the second fixing hole towards a bottom surface of the flange, and a sealing ring is arranged in a space surrounded by the chamfer, the bottom surface of the flange and a side surface of the step.

7. The vehicle controller of claim 6, wherein, A depth of the chamfer is not greater than 1 / 2 of the thickness of the elastic structure.

8. The vehicle controller of claim 2, wherein, A middle region of the housing is provided with a fixing column, the first fixing hole is arranged on the fixing column, the elastic structure is correspondingly arranged on a middle region of the top cover, and the fixing member passes through the first fixing hole and the second fixing hole and compresses the elastic structure to fix the housing and the top cover.

9. The vehicle controller of claim 2, wherein, The elastic structure is raised towards a top surface of the top cover, or raised towards a bottom surface of the top cover, or raised towards both the top surface and the bottom surface of the top cover.

10. A vehicle characterized by comprising: The vehicle comprises the vehicle controller described in any one of claims 1-9.

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