Electric vehicle controller and electric vehicle

Abstract

The utility model discloses an electric vehicle controller and an electric vehicle, the electric vehicle controller comprises a shell, the shell is non-annular and comprises a first side wall and a second side wall, one end of the first side wall in the width direction is connected with one end of the second side wall in the width direction, and the other end of the first side wall is connected with the second side wall in the width direction; an angle is formed between the first side wall and the second side wall, and an included angle space is defined by the first side wall and the second side wall; the electric control assembly is arranged in the included angle space; the included angle space is filled with the plastic coating shell, and the plastic coating shell is used for coating the exposed part of the electric control assembly. According to the electric vehicle controller, positioning and protection of the electric control assembly are achieved, fastening parts such as an end cover and a screw can be omitted, and the technical effects of optimizing the technological process, improving the production efficiency and reducing the cost are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an electric vehicle controller and an electric vehicle. Background Art

[0002] In the related art, the controller for electric vehicles has a complex structure, which leads to a cumbersome production process, resulting in low production efficiency and high costs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electric vehicle controller, which has a simple process, high production efficiency and low cost.

[0004] The utility model also provides an electric vehicle, which comprises the electric vehicle controller mentioned above.

[0005] According to an embodiment of the utility model, the electric vehicle controller includes: a shell, which is non-annular and includes a first side wall and a second side wall, one end of the first side wall in the width direction is connected to one end of the second side wall in the width direction, the first side wall and the second side wall are at an angle to each other and jointly define an angle space; an electric control component, which is arranged in the angle space; and a plastic shell, which fills the angle space and is used to cover the exposed part of the electric control component.

[0006] According to the electric vehicle controller of the embodiment of the utility model, by setting the shell to be non-annular and including a first side wall and a second side wall that are interconnected and angled with each other, the electric control component is arranged in the angle space formed between the first side wall and the second side wall, and the plastic shell fills the angle space and removes the part of the electric control component, which not only realizes the positioning and protection of the electric control component, but also can eliminate the end cover and screws and other fastening components, thereby achieving the technical effect of optimizing the process, improving production efficiency and reducing costs.

[0007] According to some embodiments of the utility model, at least one of the first side wall and the second side wall has a groove on the side facing the angle space, and the molded shell has a protrusion that cooperates with the groove; or at least one of the first side wall and the second side wall has a protrusion on the side facing the angle space, and the molded shell has a groove that cooperates with the protrusion.

[0008] According to some embodiments of the present invention, the electric vehicle controller is an integrated component.

[0009] In some embodiments of the present invention, the electric vehicle controller is formed as an integral part by an injection molding process or a molding process.

[0010] According to some embodiments of the utility model, the side of the second side wall facing the angle space has an installation plane, and the electric control component includes: an electric control board, one of the surfaces of the electric control board in the thickness direction is arranged opposite to the first side wall; a MOS tube, the MOS tube is located on the side of the electric control board away from or facing the first side wall and is connected to the electric control board, and the MOS tube is in contact with the installation plane.

[0011] In some embodiments of the present invention, a heat dissipation pad is provided between the MOS tube and the mounting plane.

[0012] In some embodiments of the present invention, it further includes: a spring sheet, which is arranged in the angle space and is used to press the MOS tube onto the installation plane.

[0013] In some embodiments of the utility model, a slot is provided on the second side wall, and the slot is located on the side of the installation plane away from the electric control board. The spring clip is clamped on the shell and includes: a first sheet and a second sheet, one end of the first sheet and one end of the second sheet are connected and form an angle with each other, one end of the first sheet away from the second sheet is inserted into the slot, and one end of the second sheet away from the first sheet abuts against the side of the MOS tube away from the installation plane.

[0014] In some embodiments of the present invention, the angle between the first sheet and the second sheet is less than or equal to 90 degrees.

[0015] In some embodiments of the utility model, the MOS tube is arranged on the side of the electric control board facing the first side wall, a clamping protrusion is provided on the side wall of the first side wall facing the angle space, and the connection between the first sheet and the second sheet is clamped on the side of the clamping protrusion facing the second side wall.

[0016] In some embodiments of the utility model, the shell also includes a third side wall, one end of the third side wall in the width direction is connected to an end of the second side wall away from the first side wall and is at an angle to the second side wall, the third side wall and the first side wall are located on the same side of the second side wall, the MOS tube is arranged on the side of the electronic control board away from the first side wall, a clamping protrusion is provided on the side wall of the third side wall facing the angle space, and the connection between the first sheet and the second sheet is clamped on the side of the clamping protrusion facing the second side wall.

[0017] In some embodiments of the present invention, the width of the third side wall is smaller than the width of the first side wall; and / or the width direction of the first side wall is perpendicular to the width direction of the second side wall; and / or the width direction of the third side wall is perpendicular to the width direction of the second side wall; and / or the width direction of the third side wall is the same as the width direction of the first side wall.

[0018] In some embodiments of the present invention, a limiting groove is provided on one side of the second side wall facing the angle space, and one end of the electric control board in the width direction is located in the limiting groove.

[0019] According to some embodiments of the present invention, a plurality of spaced-apart ribs are provided on an outer side wall of the shell facing away from the angle space.

[0020] An electric vehicle according to an embodiment of the utility model includes the above-mentioned electric vehicle controller.

[0021] According to the electric vehicle of the embodiment of the utility model, by setting the above-mentioned electric vehicle controller, the shell is set to be non-annular and includes a first side wall and a second side wall that are interconnected and angled with each other, the electric control component is arranged in the angle space formed between the first side wall and the second side wall, and the plastic shell fills the angle space except for the part of the electric control component, which not only realizes the positioning and protection of the electric control component, but also can eliminate the end cover and screws and other fastening components, thereby achieving the technical effect of optimizing the process, improving production efficiency and reducing costs.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a cross-sectional view of an electric vehicle controller according to an embodiment of the utility model;

[0025] Figure 2 is a cross-sectional view of an electric vehicle controller according to an embodiment of the utility model, wherein the spring piece is in a pre-assembly position and the plastic-wrapped shell is not processed;

[0026] Figure 3 is a cross-sectional view of an electric vehicle controller according to another embodiment of the utility model;

[0027] Figure 4 Schematic diagram of an electric vehicle according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100. Electric vehicle controller;

[0030] 1. Shell; 11. First side wall; 12. Second side wall; 121. Mounting plane; 122. Slot; 1221. First guide slope; 1222. Second guide slope; 123. Limiting groove; 13. Third side wall; 14. Protruding rib; 15. Groove; 16. Protruding convexity;

[0031] 2. Electric control components; 21. Electric control board; 22. MOS tube;

[0032] 3. Plastic shell; 31. Bump;

[0033] 4. Cooling pad;

[0034] 5. shrapnel; 51. first sheet; 52. second sheet;

[0035] 1000. Electric car. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The electric vehicle controller 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0040] like Figure 1 and Figure 3 As shown, the electric vehicle controller 100 according to the embodiment of the utility model includes a housing 1, an electric control component 2 and a plastic shell 3.

[0041] Specifically, Figure 1 and Figure 3 As shown, the housing 1 is non-annular and includes a first side wall 11 and a second side wall 12. One end of the first side wall 11 in the width direction is connected to one end of the second side wall 12 in the width direction. The first side wall 11 and the second side wall 12 form an angle with each other and define an angle space together. The angle between the first side wall 11 and the second side wall 12 can be an obtuse angle, a right angle or an acute angle, and the space within the angle formed by the first side wall 11 and the second side wall 12 is the angle space. For example, Figure 1 and Figure 3 In the example shown, the angle between the first side wall 11 and the second side wall 12 is a right angle, and the angle space formed between the first side wall 11 and the second side wall 12 is a right angle space.

[0042] like Figure 1 and Figure 3 As shown, the electric control component 2 is arranged in the angle space, and the electric control component 2 can be used to control the start, operation, advance and retreat, speed, stop of the motor of the electric vehicle 1000 and other electronic devices of the electric vehicle 1000. The housing 1 can position and protect the electric control component 2.

[0043] like Figure 1 and Figure 3As shown, the overmolded shell 3 fills the space in the angle space except the electric control component 2, and is used to cover the exposed part of the electric control component 2, that is, the exposed part of the electric control component 2 is wrapped by rubber coating to form an integral structure. The overmolded shell 3 and the housing 1 jointly protect the electric control component 2, ensuring the reliability of the operation of the electric control component 2, thereby ensuring the reliability of the operation of the electric vehicle controller 100. In addition, the overmolded shell 3 fills the space in the angle space except the electric control component 2, and can realize the connection between the electric control component 2 and the housing 1, without the need for fastening components such as screws, thereby achieving the technical effect of optimizing the process, improving production efficiency, and reducing costs.

[0044] In the related art, electric vehicles usually adopt an aluminum shell plus end cover structure, wherein the aluminum shell is annular, and an end cover structure is respectively provided at the axial ends of the aluminum shell to seal the open ends of the aluminum shell, and the end cover and the aluminum shell are connected by fasteners and a seal is provided between the end cover and the aluminum shell for sealing, which results in a cumbersome production process, low production efficiency and high cost. In the present application, the shell 1 is set to be non-annular and includes a first side wall 11 and a second side wall 12 at an angle to each other (it can be understood that the shell 1 of the present application can be a partial structure of the aluminum shell in the related art), and the end cover structure and screws and other fastening structures at both ends of the shell 1 are cancelled, and the plastic shell 3 is filled in the angle space between the first side wall 11 and the second side wall 12, which can achieve the technical effect of optimizing the process, improving production efficiency and reducing costs on the basis of fixing and protecting the electronic control component 2.

[0045] According to the electric vehicle controller 100 of the embodiment of the utility model, by setting the shell 1 to be non-annular and including a first side wall 11 and a second side wall 12 that are interconnected and angled with each other, the electric control component 2 is arranged in the angle space formed between the first side wall 11 and the second side wall 12, and the plastic shell 3 fills the angle space to remove the part of the electric control component 2, which not only realizes the positioning and protection of the electric control component 2, but also can eliminate the end cover and screws and other fastening components, to achieve the technical effect of optimizing the process, improving production efficiency and reducing costs.

[0046] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, at least one of the first side wall 11 and the second side wall 12 has a groove 15 on one side facing the angle space, and the overmolded shell 3 has a protrusion 31 that matches the groove 15. This can improve the reliability of the connection between the first side wall 11 or the second side wall 12 and the overmolded shell 3, ensuring the effect of fixing and protecting the electronic control component 2.

[0047] Of course, in other embodiments of the present invention, at least one of the first side wall 11 and the second side wall 12 has a protrusion 31 on one side facing the angle space, and the overmolded shell 3 has a groove 15 that matches the protrusion 31. This can improve the reliability of the connection between the first side wall 11 or the second side wall 12 and the overmolded shell 3, and ensure the effect of fixing and protecting the electronic control component 2.

[0048] For example, in Figure 1 In the example shown, a groove 15 is provided on the side of the first side wall 11 facing away from the second side wall 12 and facing the angle space, and a groove 15 is also provided on the side of the second side wall 12 facing away from the first side wall 11 and facing the angle space, and a plurality of protrusions 31 cooperating with the plurality of grooves 15 are provided on the overmolded shell 3. In this way, the reliability of the connection between the first side wall 11 and the second side wall 12 and the overmolded shell 3 can be increased. In the direction from the bottom wall of the groove 15 to the open mouth of the groove 15, the width of the groove 15 gradually decreases, thereby preventing the protrusion 31 on the overmolded shell 3 from being separated from the groove 15, and further ensuring the reliability of the connection between the overmolded shell 3 and the first side wall 11 and between the overmolded shell 3 and the second side wall 12.

[0049] Further, one of the two opposite side walls of the groove 15 is inclined toward the other side wall in the direction from the bottom wall of the groove 15 to the open mouth. Of course, the utility model is not limited thereto, and the two opposite side walls of the groove 15 can be inclined toward each other in the direction from the bottom wall of the groove 15 to the open mouth.

[0050] For example, in Figure 3 In the example shown, a groove 15 is provided on one side of the first side wall 11 facing away from the second side wall 12 toward the angle space, and a protrusion 31 cooperating with the groove 15 is provided on the overmolded shell 3. In this way, the reliability of the connection between the first side wall 11 and the overmolded shell 3 can be increased. Among them, in the direction from the bottom wall of the groove 15 to the open mouth of the groove 15, the width of the groove 15 gradually decreases. Specifically, one of the two side walls opposite to the groove 15 is inclined toward the other side wall in the direction from the bottom wall of the groove 15 to the open mouth. Of course, the utility model is not limited to this, and the two side walls opposite to the groove 15 can be inclined toward each other in the direction from the bottom wall of the groove 15 to the open mouth. In this way, the protrusion 31 on the overmolded shell 3 can be prevented from detaching from the groove 15, and the reliability of the connection between the overmolded shell 3 and the first side wall 11 and between the overmolded shell 3 and the second side wall 12 can be further ensured.

[0051] In addition, a groove 15 is also provided on one side of the second side wall 12 close to the first side wall 11 and facing the angle space. The inner contour of the groove 15 is U-shaped, so that the overmolded shell 3 is easily filled into the groove 15 .

[0052] In some embodiments of the present invention, the electric vehicle controller 100 is an integrated part, thereby omitting the process of connecting the housing 1, the electric control component 2 and the plastic-encapsulated shell 3, thereby improving production efficiency and reducing production costs.

[0053] Optionally, the electric vehicle controller 100 is formed as an integral part by an injection molding process or a compression molding process. The injection molding process and the compression molding process are both completed by a mold, the housing 1 and the electronic control component 2 are placed in the mold in advance, and finally the overmolded shell 3 is formed by an injection molding process or the overmolded shell 3 is formed by a compression molding process. In this way, the processing method of the electric vehicle controller 100 can be simplified, and the reliability of the connection between the housing 1, the electronic control component 2 and the overmolded shell 3 can be ensured, the process can be further optimized, the production efficiency can be improved, and the cost can be reduced.

[0054] Among them, when the overmolded shell 3 is formed by injection molding, low-pressure injection molding is adopted to avoid damaging the components in the electric control component 2 or washing away the components on the electric control component 2 when the raw materials of the overmolded shell 3 are poured into the mold, and to avoid the electric control component 2 from shifting in the angle space, thereby ensuring the reliability of the fixation of the electric control component 2 and the integrity of the electric control component 2. In addition, when the overmolded shell 3 is made by molding, molding rubber can be used to achieve molding. Both injection molding and molding can be made into various shapes according to needs.

[0055] In addition, the housing 1 may not have a positioning structure for positioning the electronic control component 2, but may be provided in the mold, and the electronic control component 2 may be positioned through the mold, and the plastic housing 3 may be formed after positioning.

[0056] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the side of the second side wall 12 facing the angle space has a mounting plane 121, and the mounting plane 121 can be parallel to the width direction of the second side wall 12. The electric control component 2 includes an electric control board 21 and a MOS tube 22 (MOSFET (Metal Oxide Semiconductor Field Effect Transistor), that is, a metal oxide semiconductor field effect tube). One of the surfaces of the electric control board 21 in the thickness direction is arranged opposite to the first side wall 11, and the electric control board 21 can be arranged parallel to the width direction of the first side wall 11. The MOS tube 22 is located on the side of the electric control board 21 away from or facing the first side wall 11 and is connected to the electric control board 21, and the MOS tube 22 is in contact with the mounting plane 121. Heat is generated during the operation of the electric control component 2, and the MOS tube 22 also generates heat. The MOS tube 22 is attached to the mounting plane 121 to better achieve the attachment of the MOS tube 22 to the mounting plane 121, so that the MOS tube 22 can be better dissipated through the housing 1.

[0057] In addition, the plastic shell 3 fills the angle space and completely covers the electric control board 21 and the MOS tube 22. The heat generated by the electric control board 21 and the MOS tube 22 can also be dissipated through the plastic shell 3, thereby improving the heat dissipation effect of the electric vehicle controller 100 and helping to reduce costs.

[0058] In the related art, the electric vehicle controller adopts the structure of an aluminum shell and an end cover, and a closed installation cavity is formed between the aluminum shell and the end cover. The electric control component is arranged in the installation cavity, and heat dissipation glue is poured into the installation cavity. The heat of the electric control component is transferred to the heat dissipation glue and then transferred to the shell and the end cover for heat dissipation or directly transferred to the aluminum shell and the end cover for heat dissipation. The prior art has a high cost and a complicated process for pouring a large amount of heat dissipation glue. Compared with the prior art, the present application does not need to pour heat dissipation glue, optimizes the process, improves production efficiency and reduces costs.

[0059] Furthermore, if Figure 1 and Figure 3 As shown, a heat dissipation pad 4 is provided between the MOS tube 22 and the mounting plane 121. Thus, seamless contact can be achieved between the MOS tube 22, the heat dissipation pad 4, and the housing 1, and heat dissipation can be effectively achieved. It should be noted that the area of ​​the mounting plane 121 and the heat dissipation pad 4 can be designed according to the heat dissipation requirements of the MOS tube 22.

[0060] Optionally, the heat dissipation pad 4 is a thermally conductive silicone member. The thermally conductive silicone is easy to deform and can be effectively adsorbed on an uneven curved surface, so as to better fit the housing 1 and the MOS tube 22 , thereby achieving a better heat dissipation effect for the MOS tube 22 .

[0061] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the electric vehicle controller 100 further includes a spring sheet 5, which is arranged in the angle space and is used to press the MOS tube 22 onto the mounting plane 121. This allows the MOS tube 22 and the mounting plane 121 to fit better, so that there is no gap between the MOS tube 22 and the mounting plane 121 arranged on the housing 1, thereby ensuring the heat dissipation effect of the MOS tube 22.

[0062] Furthermore, if Figure 1 and Figure 3As shown, a slot 122 is provided on the second side wall 12, and the slot 122 is located on the side of the mounting plane 121 away from the electric control board 21, thereby facilitating the setting of the slot 122. In addition, the spring piece 5 is clamped on the housing 1 and includes a first sheet 51 and a second sheet 52, one end of the first sheet 51 and one end of the second sheet 52 are connected and angled with each other, and the connection between the first sheet 51 and the second sheet 52 is smoothly transitioned, and the end of the first sheet 51 away from the second sheet 52 is inserted into the slot 122, and the end of the second sheet 52 away from the first sheet 51 is abutted against the side of the MOS tube 22 away from the mounting plane 121. In this way, the MOS tube 22 can be attached to the mounting plane 121 through the elastic force between the first sheet 51 and the second sheet 52, thereby ensuring the heat dissipation effect of the MOS tube 22.

[0063] The space in the slot 122 excluding the first sheet 51 can be filled with the overmolded shell 3 , thereby improving the reliability of the connection between the overmolded shell 3 and the second side wall 12 .

[0064] Alternatively, if Figure 1 and Figure 3 As shown, the slot 122 is recessed along the width direction of the first side wall 11, and the side wall of the slot 122 close to the electric control board 21 has a first guiding slope 1221, which is located at the open end of the slot 122. In the direction from the bottom wall of the slot 122 to the open mouth, the first guiding slope 1221 is inclined toward the electric control board 21, and is used to guide the first sheet 51 to be inserted into the slot 122. The side wall of the slot 122 away from the electric control board 21 has a second guiding slope 1222, which is located at one end of the slot 122 close to the bottom wall, and in the direction from the open mouth of the slot 122 to the bottom wall, the second guiding slope 1222 is inclined toward the electric control board 21, and is used to guide the insertion of the first sheet 51, and can also enhance the structural strength of the first side wall 11.

[0065] In some embodiments of the utility model, the angle between the first sheet 51 and the second sheet 52 is less than or equal to 90 degrees, thereby enhancing the elastic force between the first sheet 51 and the second sheet 52. When the first sheet 51 is inserted into the slot 122, the pressure applied by the second sheet 52 on the MOS tube 22 is enhanced, thereby ensuring the pressing effect on the MOS tube 22, ensuring the fit between the MOS tube 22 and the shell 1, and further ensuring the heat dissipation effect of the MOS tube 22.

[0066] exist Figure 1In the example shown, the housing 1 only includes the first side wall 11 and the second side wall 12, the housing 1 is L-shaped, the MOS tube 22 is arranged on the side of the electric control board 21 facing the first side wall 11, the side wall of the first side wall 11 facing the angle space is provided with a clamping protrusion 16, and the connection between the first sheet 51 and the second sheet 52 is clamped on the side of the clamping protrusion 16 facing the second side wall 12. The clamping protrusion 16 can limit the movement of the spring piece 5 in the direction away from the second side wall 12, and the cooperation between the slot 122 and the first sheet 51 can limit the movement of the spring piece 5 in the direction away from the first side wall 11, thereby improving the fixing effect of the spring piece 5, so that the second sheet 52 can abut on the side of the MOS tube 22 away from the installation plane 121, thereby ensuring the pressing effect on the MOS tube 22, ensuring the fit between the MOS tube 22 and the housing 1, and further ensuring the heat dissipation effect of the MOS tube 22.

[0067] The surface of one side of the locking protrusion 16 facing the second side wall 12 is inclined in the direction toward the electric control board 21 and away from the second side wall 12 , and is an arc-shaped surface concave in the direction away from the second side wall 12 .

[0068] exist Figure 3 In the example shown, the housing 1 further includes a third side wall 13, one end of the third side wall 13 in the width direction is connected to the end of the second side wall 12 away from the first side wall 11 and is at an angle to the second side wall 12, the third side wall 13 and the first side wall 11 are located on the same side of the second side wall 12, and the angle space is located between the first side wall 11 and the third side wall 13, wherein the housing 1 is formed into a semi-"I" shape. The MOS tube 22 is arranged on the side of the electric control board 21 away from the first side wall 11, and a clamping protrusion 16 is arranged on the side wall of the third side wall 13 facing the angle space, and the connection between the first sheet 51 and the second sheet 52 is clamped on the side of the clamping protrusion 16 facing the second side wall 12. The spring piece 5 can be limited to move in the direction away from the second side wall 12 by the locking protrusion 16, and can be limited to move in the direction away from the first side wall 11 by the cooperation between the slot 122 and the first sheet 51, thereby improving the fixing effect of the spring piece 5, so that the second sheet 52 can abut against the side of the MOS tube 22 away from the installation plane 121, thereby ensuring the pressing effect on the MOS tube 22, ensuring the fit between the MOS tube 22 and the housing 1, and further ensuring the heat dissipation effect of the MOS tube 22.

[0069] The surface of one side of the locking protrusion 16 facing the second side wall 12 is inclined in the direction toward the electric control board 21 and away from the second side wall 12 , and is an arc-shaped surface concave in the direction away from the second side wall 12 .

[0070] In some embodiments of the present invention, Figure 1 and Figure 3As shown, the width of the third side wall 13 is smaller than that of the first side wall 11 , so that the width of the third side wall 13 can be minimized on the basis of facilitating the setting of the protrusion 16 , and the plastic shell 3 can be filled in the extended position of the third side wall 13 , which facilitates the filling of the plastic shell 3 .

[0071] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the width direction of the first side wall 11 is perpendicular to the width direction of the second side wall 12, the width direction of the third side wall 13 is perpendicular to the width direction of the second side wall 12, and the width direction of the third side wall 13 is the same as the width direction of the first side wall 11, thereby allowing the shell 1 to be formed as a part of a rectangular shell 1, which can simplify the processing technology and production cost of the shell 1.

[0072] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, a limiting groove 123 is provided on one side of the second side wall 12 facing the angle space, and one end of the electric control board 21 in the width direction is located in the limiting groove 123. This can improve the reliability of positioning the electric control board 21, ensure the reliability of the operation of the electric control component 2, ensure the reliability of fixing the MOS tube 22, and further ensure the heat dissipation effect of the MOS tube 22. In addition, it can also ensure that the electric control board 21 does not shift during the processing of the plastic shell 3.

[0073] exist Figure 1 In the example shown, the shell 1 only includes a first side wall 11 and a second side wall 12, and the limiting groove 123 is arranged on the side of the second side wall 12 away from the first side wall 11, and the side of the limiting groove 123 away from the first side wall 11 is open, thereby facilitating the processing of the limiting groove 123.

[0074] In addition, the space in the limiting groove 123 excluding the electric control board 21 is filled with the overmolded shell 3 , which can further increase the reliability of the connection between the overmolded shell 3 and the second side wall 12 .

[0075] In some embodiments of the present invention, a plurality of spaced convex ribs 14 are provided on the outer side wall of the housing 1 away from the angle space, thereby increasing the outer surface area of ​​the housing 1 and thus increasing the heat dissipation area, which is beneficial to the heat dissipation of the electronic control component 2 and improves the reliability of the electronic control component 2.

[0076] exist Figure 1 and Figure 3In the example shown, a plurality of convex ribs 14 are provided on the side of the first side wall 11 away from the angle space, each convex rib 14 extends along the length direction of the first side wall 11, and the plurality of convex ribs 14 are arranged at intervals along the width direction of the first side wall 11; a plurality of convex ribs 14 are provided on the side of the second side wall 12 away from the angle space, each convex rib 14 extends along the length direction of the second side wall 12, and the plurality of convex ribs 14 are arranged at intervals along the width direction of the second side wall 12. In addition, Figure 3 In the example shown, a plurality of ribs 14 are provided on a side of the third side wall 13 away from the angle space, each rib 14 extends along the length direction of the third side wall 13 , and the plurality of ribs 14 are arranged at intervals along the width direction of the third side wall 13 .

[0077] In this application, the manufacturing process of the electric vehicle controller 100 may be:

[0078] 1. Affix a heat dissipation pad 4 to the mounting plane 121 of the housing 1;

[0079] 2. Place the electric control board 21 equipped with the MOS tube 22 on the housing 1, and fit the MOS tube 22 with the heat dissipation pad 4. If necessary, a positioning tool can be made during this process;

[0080] 3. Shrapnel 5 penetrates Figure 2 In the pre-assembly position shown, the housing 1 is pressed into place using a tool, and is pressed against the MOS tube 22 through the slot 122 and the protrusion 16;

[0081] 4. Put it into a low-pressure injection mold to over-mold the whole to form an over-mold shell 3, so that the electric vehicle controller 100 is formed as a whole.

[0082] Among them, Figure 1 In the example shown, one end of the plastic shell 3 facing away from the first side wall 11 is flush with one end of the second side wall 12 facing away from the first side wall 11 in the width direction, and one end of the plastic shell 3 facing away from the second side wall 12 is parallel to the width direction of the second side wall 12 and exceeds one end of the first side wall 11 facing away from the second side wall 12.

[0083] Of course, the utility model is not limited to this. The outer contour of the plastic shell 3 not covered by the shell 1 can be an irregular shape. The end of the plastic shell 3 facing away from the first side wall 11 can exceed the end of the second side wall 12 facing away from the first side wall 11, or can be retracted to the end of the second side wall 12 facing away from the first side wall 11. The end of the plastic shell 3 facing away from the second side wall 12 can exceed the end of the first side wall 11 facing away from the second side wall 12, or can be retracted to the end of the first side wall 11 facing away from the second side wall 12, or can be flush with the end of the first side wall 11 facing away from the second side wall 12.

[0084] The electric vehicle 1000 according to an embodiment of the present invention is described below.

[0085] like Figure 4 As shown, the electric vehicle 1000 according to the embodiment of the present invention includes the above-mentioned electric vehicle controller 100 .

[0086] According to the electric vehicle 1000 of the embodiment of the utility model, by setting the above-mentioned electric vehicle controller 100, the shell 1 is set to be non-annular and includes a first side wall 11 and a second side wall 12 that are interconnected and angled with each other, and the electric control component 2 is arranged in the angle space formed between the first side wall 11 and the second side wall 12. The plastic shell 3 fills the angle space and removes the part of the electric control component 2, which not only realizes the positioning and protection of the electric control component 2, but also can eliminate the end cover and screws and other fastening components, and realizes the technical effect of optimizing the process, improving production efficiency and reducing costs.

[0087] Optionally, the electric vehicle 1000 may be a power-assisted bicycle, an electric bicycle, an electric two-wheeled motorcycle, an electric three-wheeled vehicle, an electric three-wheeled motorcycle, an electric four-wheeled vehicle, a battery vehicle, etc. The electric vehicle controller 100 also has different performances and characteristics due to different vehicle models.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric vehicle controller, characterized in that: include: A shell, the shell is non-annular and includes a first side wall and a second side wall, one end of the first side wall in a width direction is connected to one end of the second side wall in a width direction, the first side wall and the second side wall form an angle with each other and jointly define an angle space; An electric control component, wherein the electric control component is arranged in the angle space; A plastic-encapsulated shell fills the angle space and is used to cover the exposed part of the electronic control component.

2. The electric vehicle controller according to claim 1, characterized in that: At least one of the first side wall and the second side wall has a groove on one side facing the angle space, and the overmolded shell has a protrusion matched with the groove; Alternatively, at least one of the first side wall and the second side wall has a protrusion on a side facing the angle space, and the overmolded shell has a groove matched with the protrusion.

3. The electric vehicle controller according to claim 1, characterized in that: The electric vehicle controller is an integrated part.

4. The electric vehicle controller according to claim 3, characterized in that: The electric vehicle controller is formed into an integral part through an injection molding process or a molding process.

5. The electric vehicle controller according to claim 1, characterized in that: The second side wall has a mounting plane on one side facing the angle space, and the electric control component includes: an electric control board, wherein one surface of the electric control board in a thickness direction is arranged opposite to the first side wall; A MOS tube, wherein the MOS tube is located at a side of the electric control board away from or toward the first side wall and is connected to the electric control board, and the MOS tube is in contact with the installation plane.

6. The electric vehicle controller according to claim 5, characterized in that: A heat dissipation pad is provided between the MOS tube and the mounting plane.

7. The electric vehicle controller according to claim 5, characterized in that: Also includes: A spring sheet is arranged in the angle space and is used to press the MOS tube onto the mounting plane.

8. The electric vehicle controller according to claim 7, characterized in that: The second side wall is provided with a slot, the slot is located on a side of the mounting plane away from the electric control board, the spring is clamped on the housing and includes: A first sheet and a second sheet, one end of the first sheet and one end of the second sheet are connected and angled with each other, one end of the first sheet facing away from the second sheet is inserted into the slot, and one end of the second sheet facing away from the first sheet abuts against a side of the MOS tube facing away from the mounting plane.

9. The electric vehicle controller according to claim 8, characterized in that: An angle between the first sheet and the second sheet is less than or equal to 90 degrees.

10. The electric vehicle controller according to claim 8, characterized in that: The MOS tube is arranged on the side of the electric control board facing the first side wall, a clamping protrusion is arranged on the side of the first side wall facing the angle space, and the connection between the first sheet and the second sheet is clamped on the side of the clamping protrusion facing the second side wall.

11. The electric vehicle controller according to claim 8, characterized in that: The housing further comprises a third side wall, one end of the third side wall in the width direction is connected to an end of the second side wall away from the first side wall and forms an angle with the second side wall, and the third side wall and the first side wall are located on the same side of the second side wall. The MOS tube is arranged on a side of the electric control board away from the first side wall, a clamping protrusion is arranged on the side wall of the third side wall facing the angle space, and the connection between the first sheet and the second sheet is clamped on the side of the clamping protrusion facing the second side wall.

12. The electric vehicle controller according to claim 11, characterized in that: The width of the third side wall is smaller than the width of the first side wall; and / or, the width direction of the first side wall is perpendicular to the width direction of the second side wall; and / or, the width direction of the third side wall is perpendicular to the width direction of the second side wall; And / or, the width direction of the third side wall is the same as the width direction of the first side wall.

13. The electric vehicle controller according to claim 5, characterized in that: A limiting groove is provided on one side of the second side wall facing the angle space, and one end of the electric control board in the width direction is located in the limiting groove.

14. The electric vehicle controller according to claim 1, characterized in that: A plurality of spaced-apart convex ribs are arranged on the outer side wall of the shell facing away from the angle space.

15. An electric vehicle, characterized in that: It comprises an electric vehicle controller according to any one of claims 1-14.

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