Sealing baffle, motor controller and automobile
By designing multiple raised structures on the inside of the sealing baffle for hard limits, the problem of poor sealing effect of the motor controller is solved, and more efficient sealing effect and electromagnetic compatibility protection performance are achieved.
Patent Information
- Application Number
- CN202422200831.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the prior art, the sealing baffle of the motor controller is poor in sealing effect, which is prone to excessive screw torque attenuation and overvoltage crushing of the sealing gasket during assembly, causing the risk of protection failure.
A sealing baffle is designed, with multiple raised structures on the inside of it, which are used to hardly limit the sealing gasket, avoid excessive extrusion and deformation, and ensure low impedance connection through the metal material of the raised structure, thereby enhancing the electromagnetic compatibility protection effect.
The sealing effect of the sealing baffle is improved through the hard limit structure, reducing the risk of gasket deformation during assembly, avoiding protection failure, and improving the electromagnetic compatibility protection performance of the electronically controlled port.
Smart Images
Figure CN222981826U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of overall protection of a machine, and particularly relates to a sealing baffle, a motor controller and an automobile. Background Art
[0002] In the field of new energy electric vehicles, the overall protection of a motor controller is particularly important. The plug-in terminal cover plate of the motor controller usually realizes sealing between a sealing baffle and a bottom shell.
[0003] In the related art, a layer of electroplated anti-corrosion steel plate is used as the sealing baffle, and is used in cooperation with a layer of silicone rubber gasket of the same shape and size. At the through-hole position, threaded connection is used to fasten with the shell, and the sealing effect is not good. Summary of the Utility Model
[0004] The main object of the utility model is to propose a sealing baffle, a motor controller and an automobile, aiming to improve the sealing effect of the sealing baffle.
[0005] To achieve the above object, a sealing baffle proposed by the utility model includes:
[0006] A baffle, wherein a plurality of protruding structures are arranged on the inner side of the baffle, and an installation space is formed by enclosing the plurality of protruding structures;
[0007] A gasket, which is arranged on the inner side of the baffle and is located in the installation space, and the protruding structure is used for hard limiting the compression of the gasket.
[0008] In an embodiment, the baffle is provided with a plurality of corners, and the protruding structures are arranged at the plurality of corners of the baffle;
[0009] A plurality of corners of the gasket are provided with recessed parts, and each protruding structure is in limiting cooperation with a recessed part.
[0010] In an embodiment, the baffle is provided with four corners, and the cross section of the gasket is substantially cross-shaped.
[0011] In an embodiment, the outer side wall of the protruding structure is a convex arc surface, the recessed part is a concave arc surface, and the convex arc surface is matched with the concave arc surface.
[0012] In an embodiment, a connection hole penetrating through to the protruding structure is arranged on the outer side of the baffle.
[0013] In an embodiment, the baffle is an aluminum alloy part.
[0014] In an embodiment, the protruding structure and the baffle are of an integral structure, and the protruding structure is an aluminum alloy part.
[0015] In one embodiment, the edge of the gasket is recessed inside the edge of the baffle.
[0016] In one embodiment, the length by which the edge of the gasket is recessed compared to the edge of the baffle is H, and the distance between the edge of the gasket and the outer sidewall of the convex structure is H / 2.
[0017] To achieve the above object, the present utility model further provides a motor controller, comprising:
[0018] A housing, the housing includes a bottom case and an upper cover, the upper cover is disposed on the bottom case and encloses an installation cavity with the bottom case; the bottom case is provided with the above-mentioned sealing baffle, and the sealing baffle is used to block the panel of the terminal on the side of the bottom case;
[0019] A controller body, the controller body is disposed in the installation cavity.
[0020] To achieve the above object, the present utility model further provides an automobile, comprising the above-mentioned motor controller.
[0021] The technical solution of the present utility model uses the convex structure to perform hard limit on the compression of the gasket. When the sealing baffle is assembled with the bottom case, it can avoid excessive extrusion deformation of the gasket, reduce the risk of excessive attenuation of the screw torque caused by excessive deformation of the gasket during assembly and the risk of overpressure collapse of the gasket, and avoid the risk of protection failure caused by uneven force, thereby improving the sealing effect of the sealing baffle. At the same time, when the convex structure is made of metal, the hard limit metal material ensures a reliable low-impedance connection between the sealing baffle and the housing, and improves the electromagnetic compatibility protection effect of the electronic control at the port plugging position. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0023] Figure 1 It is a schematic structural diagram of an embodiment of the sealing baffle provided by the present utility model;
[0024] Figure 2 It is a bottom view of an embodiment of the sealing baffle provided by the present utility model.
[0025] Explanation of the reference numerals in the drawings:
[0026] 100. Sealing baffle; 10. Baffle; 11. Protrusion structure; 111. Connecting hole; 20. Sealing gasket; 21. Depressed part.
[0027] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.
[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0030] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0031] In the field of new energy electric vehicles, the overall protection of the motor controller is particularly important. The plug-in terminal cover plate of the motor controller usually realizes sealing between the sealing baffle and the bottom shell.
[0032] In the related art, a layer of electroplated anti-corrosion steel plate is used as the sealing baffle, and it is used in cooperation with a layer of silicone rubber sealing gasket of the same shape and size. Threaded connection is used to fasten it to the shell at the through-hole position, and its sealing effect is not good.
[0033] Based on the above problems, the present utility model proposes a sealing baffle, aiming to improve the sealing effect of the sealing baffle.
[0034] Please refer to Figure 1 、 Figure 2 In an embodiment of the present utility model, the sealing baffle 100 includes a baffle 10 and a sealing gasket 20; a plurality of convex structures 11 are provided on the inner side of the baffle 10, and an installation space is formed by enclosing the plurality of convex structures 11; the sealing gasket 20 is provided on the inner side of the baffle 10 and is located within the installation space, and the convex structures 11 are used for hard limiting the compression of the sealing gasket 20.
[0035] The technical solution of the present utility model uses the convex structure 11 to hard limit the compression of the sealing gasket 20. When the sealing baffle 100 is assembled with the bottom case, it can avoid excessive extrusion deformation of the sealing gasket 20, reduce the risk of excessive screw torque attenuation and overpressure crushing of the sealing gasket 20 caused by excessive deformation of the sealing gasket 20 during assembly, and avoid the risk of protection failure caused by uneven force, thereby improving the sealing effect of the sealing baffle 100. At the same time, when the convex structure 11 is made of metal, the hard limiting metal material ensures a reliable low-impedance connection between the baffle 10 and the housing, improving the electromagnetic compatibility protection effect at the port plugging position of the electronic control.
[0036] In addition, the design of the convex structure 11 can also position the sealing gasket 20 to improve the assembly accuracy of the sealing gasket 20, make it easier to assemble, and make the compression rebound force of the baffle 10 received by the sealing gasket 20 more uniform.
[0037] In this embodiment, the outer contour of the sealing gasket 20 is designed to match the outer contour of the baffle 10, which can effectively avoid the risk of the sealing gasket 20 being extruded and overflowing, and greatly delay the problem of protection failure caused by corrosion invasion due to the accumulation of stagnant water and salt spray.
[0038] It should be noted that the baffle 10 and the sealing gasket 20 proposed in this solution have been assembled in the previous process. Therefore, when assembling with the bottom case, the baffle 10 and the sealing gasket 20 have been assembled into an integrated sealing baffle 100. Optionally, the sealing gasket 20 can be installed on the baffle 10 by bonding.
[0039] In actual application, the number of the convex structures 11 can be three, four, five, etc., as long as it can hard limit and accurately position the sealing gasket 20.
[0040] Exemplarily, the sealing gasket 20 can be a rubber gasket or a silicone gasket.
[0041] Please refer to Figure 1 、 Figure 2, in an embodiment of the present utility model, the baffle 10 is provided with a plurality of corners, and each of the plurality of corners of the baffle 10 is provided with a convex structure 11; each of the plurality of corners of the gasket 20 is provided with a concave portion 21, and each convex structure 11 is in limit fit with a concave portion 21.
[0042] With such a setting, through the cooperation of the convex structures 11 at the plurality of corners and the plurality of concave portions 21, the gasket 20 can be positioned in the front-back, left-right directions, the positioning effect of the gasket 20 can be improved, and further the assembly accuracy of the gasket 20 can be improved.
[0043] In the actual application process, the baffle 10 may specifically be provided with a plurality of corners such as three, four, five, six, seven, etc. Correspondingly, the concave portions 21 may also specifically be provided with a plurality of three, four, five, six, seven, etc.
[0044] Optionally, the baffle 10 may be provided with four corners. In this embodiment, by providing the concave portions 21 at the four corners of the gasket 20, the cross-section of the gasket 20 can be made substantially cross-shaped.
[0045] In the actual application process, the outer contour of the convex structure 11 may be in shapes such as circular, oval, rectangular, triangular, etc.
[0046] Please refer to Figure 1 、 Figure 2 , in an embodiment of the present utility model, the outer side wall of the convex structure 11 is a convex arc surface, the concave portion 21 is a concave arc surface, and the convex arc surface is in cooperation with the concave arc surface.
[0047] In this embodiment, the outer contour of the convex structure 11 is circular.
[0048] With such a setting, through the cooperation of the convex arc surface and the concave arc surface, the positioning effect of the gasket 20 can be further improved.
[0049] Please refer to Figure 1 、 Figure 2 , in an embodiment of the present utility model, a connection hole 111 penetrating through to the convex structure 11 is provided on the outer side of the baffle 10.
[0050] With such a setting, during the assembly process, a connecting member (screw or rivet) can be used to pass through the connection hole 111 of the convex structure 11 to fasten the sealing baffle 100 to the bottom case.
[0051] In the actual application process, the convex structure 11 includes but is not limited to structures such as a hollow rivet, a press rivet, a machined boss, a stamping formed boss, etc.
[0052] Please refer to Figure 1 、 Figure 2 , in an embodiment of the present utility model, the baffle 10 is an aluminum alloy part.
[0053] With such a setting, by using aluminum alloy as the material of the baffle 10, the baffle 10 can have good anti-corrosion and anti-oxidation properties, eliminating the need for electroplating the baffle 10, thus saving the cost of the electroplating process.
[0054] Of course, in other embodiments, the baffle 10 can also be other non-ferrous metals with excellent anti-corrosion and anti-oxidation properties, such as aluminum, titanium, titanium alloy, and so on.
[0055] Please refer to Figure 1 、 Figure 2 In an embodiment of the present utility model, the convex structure 11 and the baffle 10 are an integral structure, and the convex structure 11 is an aluminum alloy part.
[0056] With such a setting, by also setting the convex structure 11 as an aluminum alloy part, the convex structure 11 can function as a ground connection, eliminating the need for additional ground connection wiring operations, which not only reduces costs but also greatly improves safety and reliability.
[0057] Of course, in other embodiments, the convex structure 11 can also be other non-ferrous metals with excellent anti-corrosion and anti-oxidation properties, such as aluminum, titanium, titanium alloy, and so on.
[0058] Please refer to Figure 1 、 Figure 2 In an embodiment of the present utility model, the edge of the gasket 20 is recessed inside the edge of the baffle 10, that is, the edge of the baffle 10 protrudes outside the edge of the gasket 20.
[0059] With such a setting, through the recessed design of the edge of the gasket 20, during the assembly process, it is possible to prevent the edge of the gasket 20 from overflowing outside the edge of the baffle 10, thus greatly delaying the problem of protection failure caused by corrosion invasion due to the accumulation of water and salt spray.
[0060] Please refer to Figure 2 In an embodiment of the present utility model, define the recessed length of the edge of the gasket 20 compared to the edge of the baffle 10 as H, then it satisfies: 0.5mm ≤ H ≤ 2mm. Specifically, the recessed length H of the edge of the gasket 20 compared to the edge of the baffle 10 can be 0.5mm, 0.8mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.9mm, 2mm, and so on.
[0061] With such a setting, when the retraction length of the edge of the gasket 20 compared to the edge of the baffle 10 is too small, the edge of the gasket 20 is likely to overflow the edge of the baffle 10 during extrusion, resulting in problems such as water accumulation and salt spray accumulation causing corrosion intrusion and protection failure; when the retraction length of the edge of the gasket 20 compared to the edge of the baffle 10 is too large, the area of the gasket 20 will be too small to achieve an effective sealing effect.
[0062] Further, please refer to Figure 2 , the retraction length H of the edge of the gasket 20 compared to the edge of the baffle 10 is 1 mm. With such a setting, by preferably setting the retraction length of the edge of the gasket 20 compared to the edge of the baffle 10 to be 1 mm, on the basis of effectively delaying the protection failure problem caused by corrosion intrusion due to water accumulation and salt spray accumulation, a better sealing effect can be achieved.
[0063] Please refer to Figure 2 , in an embodiment of the present utility model, the distance between the edge of the gasket 20 and the outer side wall of the convex structure 11 is H / 2.
[0064] With such a setting, a gap of H / 2 can be provided between the edge of the gasket 20 and the outer side wall of the convex part. In this way, when the gasket 20 is extruded, this gap can provide a deformation space for the gasket 20 and can prevent the gasket 20 from overflowing the edge of the baffle 10. In addition, by providing a gap of H / 2 between the edge of the gasket 20 and the outer side wall of the convex part, it is more convenient to install the gasket 20.
[0065] It should be noted that the thicknesses of the baffle 10 and the gasket 20 can be determined according to the housing size required by the motor controller.
[0066] In an embodiment of the present utility model, when the thickness of the baffle 10 is too large, it will not only cause a larger weight of the whole machine but also a higher cost; when the thickness of the baffle 10 is too small, the self-strength of the baffle 10 will be insufficient and it is easy to deform, affecting the service life. Therefore, optionally, the thickness W of the baffle 10 1 = 4 mm.
[0067] In an embodiment of the present utility model, when the thickness of the gasket 20 is too large, not only the cost is high but also there will be a problem of being extruded and overflowing; when the thickness of the gasket 20 is too small, it cannot achieve an effective sealing effect. Therefore, optionally, the thickness W of the gasket 20 2 = 2 mm.
[0068] The present utility model further provides a motor controller, which includes a housing and a controller body. A sealing baffle 100 is provided on the bottom case of the housing. The specific structure of the sealing baffle 100 refers to the above-mentioned embodiment. Since this motor controller adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.
[0069] Among them, the housing includes a bottom case and an upper cover. The upper cover is covered on the bottom case and encloses an installation cavity with the bottom case; the sealing baffle 100 is used to block the panel of the terminal on the side of the bottom case; the controller body is arranged in the installation cavity.
[0070] The present utility model further provides a vehicle, which includes a motor controller. The specific structure of the motor controller refers to the above-mentioned embodiment. Since this vehicle adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.
[0071] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. A sealing baffle, characterized in that: include: A baffle, wherein a plurality of protrusion structures are provided on the inner side of the baffle, and the plurality of protrusion structures are enclosed to form an installation space; A sealing gasket is arranged on the inner side of the baffle and is located in the installation space, and the protruding structure is used to perform hard limit on the compression of the sealing gasket.
2. The sealing baffle according to claim 1, characterized in that: The baffle is provided with a plurality of corners, and the plurality of corners of the baffle are all provided with the protruding structure; Multiple corners of the sealing gasket are provided with recessed parts, and each of the protruding structures is limitedly matched with one of the recessed parts.
3. The sealing baffle according to claim 2, characterized in that: The baffle is provided with four corners, and the cross section of the sealing gasket is substantially in a cross shape.
4. The sealing baffle according to claim 2, characterized in that: The outer side wall of the protruding structure is a convex arc surface, the recessed portion is a concave arc surface, and the convex arc surface matches the concave arc surface.
5. The sealing baffle according to any one of claims 1 to 4, characterized in that: The outer side of the baffle is provided with a connecting hole penetrating to the protruding structure.
6. The sealing baffle according to any one of claims 1 to 4, characterized in that: The baffle is an aluminum alloy part.
7. The sealing baffle according to claim 6, characterized in that: The protruding structure and the baffle are an integrated structure, and the protruding structure is an aluminum alloy part.
8. The sealing baffle according to any one of claims 1 to 4, characterized in that: The edge of the sealing gasket is retracted inside the edge of the baffle.
9. The sealing baffle according to claim 8, characterized in that: The inward length of the edge of the sealing gasket compared to the edge of the baffle is H, and the distance between the edge of the sealing gasket and the outer side wall of the protruding structure is H / 2.
10. A motor controller, characterized in that: include: A housing, the housing comprising a bottom housing and an upper cover, the upper cover being arranged on the bottom housing and enclosing the bottom housing to form a mounting cavity; the bottom housing is provided with a sealing baffle as claimed in any one of claims 1 to 9, the sealing baffle being used to seal a panel of a terminal on a side of the bottom housing; A controller body is disposed in the installation cavity.
11. A car, characterized in that: Comprising the motor controller as claimed in claim 10.