Motorcycle automatic start-stop controller

Abstract

The utility model relates to the technical field of start-stop controllers, in particular to an automatic start-stop controller for a motorcycle. The controller comprises a shell and a circuit board fixedly connected with the shell, a main chip, an MOS bridge and a driver which are connected are arranged on the circuit board, heat dissipation elements are connected to the side, away from the circuit board, of the shell, the heat dissipation elements are distributed on the shell at intervals, a heat dissipation boss is arranged in the shell, a gap is formed between the heat dissipation boss and the circuit board, and the heat dissipation boss corresponds to the main chip in position. Compared with the prior art, the start-stop controller has the advantages that the heat dissipation effect of the start-stop controller is improved, the service life of the chip is further prolonged, and the like.

Description

A motorcycle automatic start-stop controller Technical Field

[0001] This utility model relates to the field of start-stop controller technology, and in particular to an automatic start-stop controller for motorcycles. Background Technology

[0002] As economic and social development faces increasing environmental pressures, the requirements for energy conservation and emission reduction in motorcycle products are also becoming more stringent. In order to reduce motorcycle fuel consumption and improve motorcycle fuel economy, various new technologies are constantly being proposed and applied.

[0003] Intelligent integrated motor systems are gradually replacing the transmission components of the original engine starting system, as well as traditional starting, power generation, and circuit components. This significantly simplifies complex structural designs, greatly reduces engine assembly difficulty, lightens the overall vehicle weight, and saves resources. The start-stop controller is a crucial component of intelligent integrated motor systems. For example, Chinese patent CN210919315U discloses an automatic start-stop controller for motorcycles, including a start-stop controller body with a button engaged in the middle. A fixing plate is provided on the outer surface of the start-stop controller body, with first slots at both ends of the fixing plate and second slots at both ends of the first slots. Both ends of the start-stop controller body have integrally formed locking blocks, and spring plates are screwed to both ends of the locking blocks. The start-stop controller body and the fixing plate are connected via locking blocks engaging with the first slots, and the locking blocks are connected to the first slots via spring plates engaging with the second slots. By designing a fixing plate on the outer surface of the start-stop controller body, the inconvenience of direct bolt fixing during installation—which would hinder disassembly, inspection, maintenance, and installation—is avoided.

[0004] However, the existing technology does not take into account that the double-layer circuit board design of the start-stop controller will cause internal heat to be generated and the heat cannot be effectively dissipated, which will have a certain impact on the chip life over time. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology in terms of poor heat dissipation and to provide an automatic start-stop controller for motorcycles.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] This utility model provides an automatic start-stop controller for motorcycles, including a housing and a circuit board fixedly connected to the housing. The circuit board is provided with a main chip, a MOS bridge and a driver. A heat dissipation element is connected to the side of the housing away from the circuit board. The heat dissipation element is distributed at intervals on the housing. A heat dissipation protrusion is provided inside the housing. The heat dissipation protrusion has a gap with the circuit board and corresponds to the position of the main chip.

[0008] As a preferred technical solution, the heat dissipation element is a heat sink, which is perpendicular to the outer wall of the housing.

[0009] As a preferred technical solution, the outer shell further includes reinforcing ribs, which are connected to the inner wall of the outer shell.

[0010] As a preferred technical solution, the housing further includes a positioning element connected to the inner wall of the housing.

[0011] As a preferred technical solution, the gap between the heat dissipation boss and the circuit board is filled with a thermally conductive structure.

[0012] As a preferred technical solution, the thermally conductive structure includes thermal grease.

[0013] As a preferred technical solution, the housing further includes a mounting buckle, which is disposed on the outer side wall of the housing.

[0014] As a preferred technical solution, the housing further includes a fixing hole, which is located on the outer side wall of the housing.

[0015] As a preferred technical solution, the controller further includes a connector assembly, which is soldered to the circuit board and has an interference fit with the housing.

[0016] As a preferred technical solution, the MOS bridge uses silicon carbide MOS.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model integrates the MOS bridge on the same board, which can achieve three-phase balanced output, controllable voltage and current, low output ripple, and shared MOS for starting and generating. At the same time, heat dissipation elements are distributed on the outer wall of the housing and heat dissipation protrusions corresponding to the position of the main chip are set inside the housing, which can effectively dissipate the heat generated inside the start-stop controller, improve the heat dissipation effect, and thus improve the service life of the chip.

[0019] 2. In this utility model, the heat dissipation element adopts a heat sink perpendicular to the outer wall of the shell, which increases the heat dissipation area without changing the total volume of the shell. It works together with the heat dissipation protrusion of the main chip to more effectively conduct the heat of the controller during operation to the heat sink of the shell, reduce the risk of the MOSFET burning out due to excessive temperature of the start / stop controller, and improve overall stability.

[0020] 3. The outer shell of this utility model is also provided with reinforcing ribs, which can prevent the sidewalls from deforming during manufacturing and transportation, while limiting the circuit board;

[0021] 4. Compared with the existing double-layer circuit board start-stop controller, this utility model reduces the complexity of the production and assembly process and saves costs. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the circuit board assembly structure provided in an embodiment of the present utility model;

[0023] Figure 2 is a schematic diagram of the outer shell structure provided in an embodiment of the present utility model;

[0024] Figure 3 is a schematic diagram showing the internal details of the outer shell provided in an embodiment of the present utility model;

[0025] Figure 4 is a schematic diagram of the potting adhesive surface structure provided in an embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of two shell mounting methods provided in the embodiments of this utility model;

[0027] Figure 6 is a partial cross-sectional structural schematic diagram provided in an embodiment of the present utility model;

[0028] The components include: 1. Circuit board; 11. Silicon carbide MOS; 12. Motor high-voltage connector; 13. Motor output connector; 14. Motor low-voltage connector; 2. Housing; 21. Heat sink; 22. Mounting clip; 23. Fixing hole; 24. Heat dissipation boss; 25. Reinforcing rib; 26. Positioning post; 3. Encapsulating glue. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Example:

[0033] This embodiment provides an automatic start-stop controller for motorcycles, including a housing and a circuit board fixedly connected to the housing. The circuit board has a main chip, a MOS bridge, and a driver connected thereon. A heat dissipation element is connected to the side of the housing away from the circuit board. The heat dissipation elements are spaced apart on the housing. The interior of the housing has heat dissipation protrusions with gaps between them and the circuit board, and these protrusions correspond to the positions of the main chip. The housing mainly serves for fixing, assembly, and heat dissipation.

[0034] Figure 1 illustrates an assembly structure of circuit board 1 in the controller. Circuit board 1 integrates a connected main chip, a MOS bridge, and a driver. The MOS bridge and driver are arranged on the same circuit board, which reduces heat accumulation in electronic components and lowers assembly complexity during production. Optionally, the MOS in the MOS bridge uses a novel silicon carbide MOS11, which can dissipate heat and reduce the size of the MOS bridge, thereby improving overall stability.

[0035] The controller also includes connector components, including a motor high-voltage connector 12, a motor output connector 13, and a motor low-voltage connector 14. The motor high-voltage connector 12 and the motor output connector 13 are soldered to one end of circuit board 1, while the motor low-voltage connector 14 is soldered to the other end of circuit board 1, located at the center of the end. Circuit board 1 supports the acquisition of Hall waveforms, VCC power supply, Key on power-on signals, and CAN communication.

[0036] Figure 2 shows an overall structure of the housing 2 in the controller, and Figure 3 shows its internal structure. In this embodiment, the heat dissipation element is a heat sink 21. Multiple heat sinks 21 are spaced apart on the housing 2 and fixedly connected to the side of the housing 2 away from the circuit board 1 (i.e., the outer wall of the housing 2). The heat sinks 21 are perpendicular to the outer wall of the housing 2. In some other embodiments, the heat sinks 21 are arranged parallel to each other, but may not be perpendicular to the outer wall of the housing 2. The arrangement of the heat sinks 21 makes the heat dissipation area of ​​the housing 2 larger for the same volume, and more effectively conducts heat to the heat sinks 21 of the housing 2, and then dissipates it into the surrounding air through the heat sinks 21.

[0037] As shown in Figure 2, the outer casing 2 also includes multiple mounting buckles 22 for the filling cover protection plate. The mounting buckles 22 are located on the outer side wall of the outer casing 2 to ensure that the filling cover is resistant to interference.

[0038] As shown in Figure 2, the outer casing 2 also includes a fixing hole 23, which is located on the outer side wall of the outer casing 2 and connected to the outer side wall through an integrally die-cast connecting part. As shown in Figure 5, the outer casing 2 is designed for installation in two directions, both of which are fixed with bolts through the fixing hole 23 of the controller, which is suitable for the two mainstream installation methods in the market and achieves seamless switching.

[0039] As shown in Figure 3, the interior of the housing 2 is provided with a heat dissipation protrusion 24. The heat dissipation protrusion 24 has a gap with the circuit board 1 and corresponds to the position of the main chip on the circuit board 1. For example, the heat dissipation protrusion 24 and the circuit board 1 are left with a 0.5mm gap filled with thermal grease, which is used to quickly conduct heat from the main chip during operation.

[0040] As shown in Figures 3 and 6, the interior of the housing 2 is also provided with reinforcing ribs 25 and positioning elements. The reinforcing ribs 25 are connected to the inner wall of the housing 2 to prevent deformation of the sidewalls during manufacturing and transportation. Another function is to support and position the circuit board 1 and ensure a 0.5mm gap mounting position. Optionally, the positioning element is a positioning post 26, connected to the inner wall of the housing 2, for anti-static purposes on the circuit board 1.

[0041] In the controller structure shown in Figures 1-6, the motor high-voltage connector 12, motor output connector 13, and motor low-voltage connector 14 are assembled on the housing 2 with an interference fit. After the circuit board 1 is fixed to the housing 2 by the motor high-voltage connector 12, motor output connector 13, and motor low-voltage connector 14, its internal space is sealed with potting compound 3 for heat conduction and heat dissipation of other electronic components. This improves the overall resistance to external impacts and vibrations, while also improving the insulation between internal components and circuits, avoiding direct exposure of components and circuits, and improving the waterproof, dustproof, and moisture-proof performance of the device. In addition, the housing 2 is a one-piece aluminum part made by die casting, with surface treatment of shot blasting and electroplating; the surface treatment is anodizing, which has good corrosion resistance, heat resistance, impact resistance, and strength, and also improves the anti-interference capability to a certain extent.

[0042] In summary, the motorcycle automatic start-stop controller provided by this utility model consists of a housing and a circuit board, on which the main chip components, MOSFETs, capacitors, and Hall effect sensors are integrated. After soldering connector assemblies onto the circuit board, it is assembled onto the housing, where it is limited and grounded by internal reinforcing ribs and positioning posts. A layer of thermally conductive silicone grease is applied between the bottom of the main chip's heat sink on the circuit board and the heat dissipation protrusion inside the housing (as shown in Figure 6), allowing the heat generated by the main chip to be more effectively conducted to the heat sink on the housing, and then dissipated into the surrounding air. The remaining electronic components are encapsulated with potting compound to achieve heat conduction, enhance the overall integrity of the electronic devices, improve the insulation between internal components and circuits, and improve the device's waterproof, dustproof, and moisture-proof performance.

[0043] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A motorcycle automatic start-stop controller, characterized in that, The device includes a housing and a circuit board fixedly connected to the housing. The circuit board has a connected main chip, a MOS bridge and a driver. A heat dissipation element is connected to the side of the housing away from the circuit board. The heat dissipation elements are spaced apart on the housing. A heat dissipation protrusion is provided inside the housing. The heat dissipation protrusion has a gap with the circuit board and corresponds to the position of the main chip.

2. The motorcycle automatic start-stop controller of claim 1, wherein, The heat dissipation element is a heat sink, which is perpendicular to the outer wall of the housing.

3. The motorcycle automatic start-stop controller of claim 1, wherein, The outer shell also includes reinforcing ribs connected to the inner wall of the outer shell.

4. The motorcycle automatic start-stop controller according to claim 3, characterized in that, The housing also includes a positioning element connected to the inner wall of the housing.

5. The motorcycle automatic start-stop controller of claim 1, wherein, The gap between the heat dissipation boss and the circuit board is filled with a thermally conductive structure.

6. The motorcycle automatic start-stop controller of claim 5, wherein, The thermally conductive structure includes thermal grease.

7. The motorcycle automatic start-stop controller according to claim 1, characterized in that, The housing also includes a mounting buckle, which is disposed on the outer side wall of the housing.

8. The motorcycle automatic start-stop controller of claim 1, wherein, The housing also includes a fixing hole, which is located on the outer side wall of the housing.

9. The motorcycle automatic start-stop controller of claim 1, wherein, The controller also includes a connector assembly that is soldered to the circuit board and has an interference fit with the housing.

10. The motorcycle automatic start-stop controller of claim 1, wherein, The MOS bridge uses silicon carbide MOS.

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