Heat dissipation structure of electric outboard motor

Abstract

The utility model relates to the technical field of heat dissipation, and disclose a kind of heat dissipation structure of electric outboard motor, including outboard motor body, first fan and second fan are symmetrically installed in outboard motor body interior, driving motor is installed in outboard motor body outside, the shaft of driving motor is connected with first fan, connecting mechanism is installed in outboard motor body interior, one end of connecting mechanism is connected with second fan, protective shell is installed in outboard motor body interior, first rotating bead and second rotating bead for adjusting wind direction are installed on the inner wall of protective shell;Under the continuous operation of driving motor, enlarge vertical blowing range, improve heat dissipation effect;In addition, micro motor operation drives second rotating bead transverse rotation, expand transverse blowing range;Through the cooperation of first rotating bead and second rotating bead, achieve the heat dissipation of multiple angles to the inside of outboard motor body, enlarge blowing range, improve heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, specifically a heat dissipation structure for an electric outboard motor. Background Technology

[0002] On the rippling waters, the roar and exhaust fumes of traditional fuel-powered outboard motors are gradually being replaced by a quiet technological force—electric outboard motors glide through the water with their streamlined, lightweight bodies. Their core lithium-ion battery packs, like a "green heart," are hidden at the stern, converting electrical energy into precise and powerful thrust through permanent magnet synchronous motors. The propellers leave only subtle ripples as they cut through the water. The intelligent control system, like a "waterborne brain," monitors the power output in real time. The speed and remaining range data displayed on the digital screen echo the solar charging stations on the distant shore, together painting a picture of future water travel characterized by zero emissions, low noise, and high efficiency.

[0003] Currently, traditional outboard motors typically use fans for internal cooling; however, this method has limitations. Because the air blown by the fan is direct, it's difficult to effectively dissipate heat. This direct airflow only concentrates on specific areas of the components inside the outboard motor, resulting in uneven heat distribution. Therefore, it does not meet current requirements. To address this, we propose a cooling structure for electric outboard motors. Utility Model Content

[0004] This invention provides a heat dissipation structure for an electric outboard motor, which significantly improves heat dissipation efficiency. It addresses the limitations of traditional outboard motors that typically use fans for internal cooling, as mentioned in the background section. Because the air blown by the fan is direct, it is difficult to effectively disperse the heat. This direct airflow, during the cooling process, only concentrates on specific areas of the components inside the outboard motor, leading to uneven heat distribution.

[0005] This utility model provides the following technical solution: a heat dissipation structure for an electric outboard motor, comprising an outboard motor body, a first fan and a second fan symmetrically installed inside the outboard motor body, a drive motor installed on the outside of the outboard motor body, the shaft of the drive motor being connected to the first fan, a connecting mechanism installed inside the outboard motor body, one end of the connecting mechanism being connected to the second fan, and a protective housing installed inside the outboard motor body, with a first rotating bead and a second rotating bead for adjusting the airflow direction installed on the inner wall of the protective housing.

[0006] As an optional solution for the heat dissipation structure of the electric outboard motor described in this utility model, the connecting mechanism includes a rotating shaft rotatably installed inside the outboard motor body, a connecting shaft rotatably installed on the inner wall of the outboard motor body, a first transmission wheel installed on the rotating shaft of the drive motor, and a second transmission wheel installed on the rotating shaft, wherein a transmission belt is connected to the first transmission wheel and the second transmission wheel.

[0007] As an optional heat dissipation structure for an electric outboard motor according to this utility model, the first transmission wheel is provided in two sets, one set of which is mounted on the connecting shaft, and the second fan is mounted on the surface of the connecting shaft.

[0008] As an optional heat dissipation structure for an electric outboard motor according to this utility model, the first rotating bead and the second rotating bead are respectively provided with air transmission holes, circular plates are symmetrically installed between the rotating shafts of the drive motor, a connecting rod is installed between the two circular plates, a push rod is rotatably sleeved on the surface of the connecting rod, a cylinder is installed on the side of the first rotating bead, and the cylinder is rotatably engaged with the push rod.

[0009] As an optional heat dissipation structure for an electric outboard motor according to the present invention, a micro motor is installed in the inner wall of the protective housing, and the shaft of the micro motor is connected to the second rotating ball.

[0010] As an optional heat dissipation structure for an electric outboard motor according to the present invention, the electric outboard motor housing has symmetrically provided air inlets and air outlets on its surface, the first fan is disposed adjacent to the air inlet, and the second fan is disposed adjacent to the air outlet.

[0011] As an optional heat dissipation structure for an electric outboard motor according to this utility model, the first fan is configured as a blowing fan, and the second fan is configured as an intake fan.

[0012] This utility model has the following beneficial effects:

[0013] 1. The heat dissipation structure of this electric outboard motor involves the following steps: First, the drive motor starts, driving the first fan to rotate at high speed. This draws in air from the outside, where the temperature is lower than that inside the outboard motor, achieving initial heat dissipation through the temperature difference. Simultaneously, as the drive motor rotates, two circular plates work together to convert the rotational motion into the up-and-down movement of a connecting rod. This connecting rod drives a push rod to move synchronously, which in turn rotates the first rotating ball, vertically guiding the airflow. With continuous operation of the drive motor, the vertical airflow range is expanded, improving the heat dissipation effect. Furthermore, a micro-motor drives the second rotating ball to rotate laterally, expanding the lateral airflow range. Through the coordinated operation of the first and second rotating balls, multi-angle heat dissipation of the outboard motor's interior is achieved, expanding the airflow range and enhancing the heat dissipation effect.

[0014] 2. The heat dissipation structure of the electric outboard motor, during the heat dissipation process of the outboard motor body, when the drive motor is running, the power of the drive motor is transmitted to the rotating shaft through the cooperation of two sets of first transmission wheels, second transmission wheels and transmission belts, thereby starting the second fan to run; when the second fan is rotating, it guides the heat distribution inside the outboard motor body. At the same time, the first fan and the second fan cooperate with each other to further improve the heat dissipation effect by increasing the air circulation speed inside the outboard motor body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram at point A in the diagram.

[0018] Figure 4 This is a schematic diagram of the combined structure of the first fan and the second fan of this utility model.

[0019] In the diagram: 110, Outboard motor body; 111, First fan; 112, Second fan; 113, Drive motor; 120, Connecting mechanism; 121, Rotating shaft; 122, Connecting shaft; 123, First transmission wheel; 124, Second transmission wheel; 125, Transmission belt; 130, Protective housing; 131, First rotating ball; 132, Second rotating ball; 140, Air vent; 141, Circular plate; 142, Connecting rod; 143, Push rod; 144, Cylinder; 145, Micro motor; 150, Air inlet; 151, Air outlet. Detailed Implementation

[0020] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1 aims to address the limitations of traditional outboard engines, which typically rely on fans for internal cooling. Because the fan blows air in a direct stream, effective heat dissipation is difficult. This direct airflow concentrates heat on specific areas of the outboard engine's components, leading to uneven heat distribution. Please refer to [link to relevant documentation]. Figures 1-4 A heat dissipation structure for an electric outboard motor includes an outboard motor body 110. A first fan 111 and a second fan 112 are symmetrically installed inside the outboard motor body 110. A drive motor 113 is installed on the outside of the outboard motor body 110. The shaft of the drive motor 113 is connected to the first fan 111. A connecting mechanism 120 is installed inside the outboard motor body 110. One end of the connecting mechanism 120 is connected to the second fan 112. A protective housing 130 is installed inside the outboard motor body 110. A first rotating bead 131 and a second rotating bead 132 for adjusting the airflow direction are installed on the inner wall of the protective housing 130.

[0022] The first rotating bead 131 and the second rotating bead 132 are respectively provided with air transmission holes 140. Circular plates 141 are symmetrically installed between the rotating shafts of the drive motor 113. A connecting rod 142 is installed between the two circular plates 141. A push rod 143 is rotatably sleeved on the surface of the connecting rod. A cylinder 144 is installed on the side of the first rotating bead 131. The cylinder 144 and the push rod 143 are rotatably engaged.

[0023] In practice, the drive motor 113 drives the first fan 111 to rotate, which in turn guides outside air into the outboard motor body 110, making the temperature of the blown air relatively lower than the temperature inside the outboard motor body 110, thereby achieving a heat dissipation effect. Furthermore, during the rotation of the drive motor 113, the connecting rod 142 moves up and down through the cooperation of the two circular plates 141. As a result, the movement of the connecting rod 142 drives the push rod 143 to move up and down, which in turn drives the first rotating bead 131 to rotate, thereby achieving vertical airflow guidance. With the continuous operation of the drive motor 113, the first rotating bead 131 can expand the airflow range and improve the heat dissipation effect.

[0024] A micro motor 145 is installed in the inner wall of the protective housing 130. The shaft of the micro motor 145 is connected to the second rotating ball 132. The first fan 111 is set as a blowing fan, and the second fan 112 is set as a suction fan.

[0025] In practice, the operation of the micro motor 145 can drive the second rotating bead 132 to rotate laterally, thus making the air blowing range also laterally. Through the cooperation of the first rotating bead 131 and the second rotating bead 132, heat dissipation of the interior of the outboard motor body 110 can be achieved from multiple angles, thus expanding the air blowing range.

[0026] In this embodiment: when the outboard motor is dissipating heat, the drive motor 113 starts first, driving the first fan 111 to rotate at high speed, introducing air with an outside temperature lower than that inside the outboard motor body 110, and using the temperature difference to achieve initial heat dissipation; at the same time, when the drive motor 113 rotates, the two circular plates 141 cooperate with each other, converting the rotational motion into the up-and-down movement of the connecting rod 142. The connecting rod 142 drives the push rod 143 to move synchronously, and the push rod 143 then pushes the first rotating bead 131 to rotate, realizing the vertical guidance of the airflow. With the continuous operation of the drive motor 113, the vertical airflow range is expanded and the heat dissipation effect is improved; in addition, the operation of the micro motor 145 drives the second rotating bead 132 to rotate laterally, expanding the lateral airflow range; through the coordinated operation of the first rotating bead 131 and the second rotating bead 132, heat dissipation of the inside of the outboard motor body 110 is achieved from multiple angles, expanding the airflow range and improving the heat dissipation effect.

[0027] Example 2 aims to address the problem that while a fan can transfer outside air to the outboard engine casing, the heat inside the casing cannot be quickly dissipated, resulting in low heat dissipation efficiency. This example is an improvement upon Example 1. For details, please refer to 1- Figure 4 The connecting mechanism 120 includes a rotating shaft 121 rotatably mounted inside the outboard motor body 110, a connecting shaft 122 rotatably mounted on the inner wall of the outboard motor body 110, a first transmission wheel 123 mounted on the rotating shaft of the drive motor 113, and a second transmission wheel 124 mounted on the rotating shaft 121. A transmission belt 125 is connected to the first transmission wheel 123 and the second transmission wheel 124.

[0028] Two sets of first transmission wheels 123 are provided. One set of first transmission wheels 123 is mounted on connecting shaft 122. The second fan 112 is mounted on the surface of connecting shaft 122. The surface of the electric outboard motor housing is symmetrically provided with air inlet 150 and air outlet 151. The first fan 111 is located near the air inlet 150, and the second fan 112 is located near the air outlet 151.

[0029] In specific implementation, during the rotation of the drive motor 113, the rotating shaft 121 is driven to rotate through the cooperation of two sets of first transmission wheels 123, second transmission wheels 124 and transmission belt 125. During the rotation of the rotating shaft 121, the connecting shaft 122 is driven to rotate, causing the second fan 112 to rotate. During the rotation, the temperature inside the outboard motor body 110 is guided. The cooperation of the first fan 111 and the second fan 112 accelerates the air circulation inside the casing, achieving the effect of heat dissipation.

[0030] In this embodiment: during the outboard motor cooling operation, when the drive motor 113 is running, the power of the drive motor 113 is transmitted to the rotating shaft 121 through the cooperation of two sets of first transmission wheels 123, second transmission wheels 124 and transmission belt 125, thereby causing the second fan 112 to start running; when the second fan 112 rotates, it guides the heat distribution inside the outboard motor body 110. At the same time, the first fan 111 and the second fan 112 cooperate with each other to further improve the cooling effect by increasing the airflow speed inside the outboard motor body 110.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for an electric outboard motor, comprising an outboard motor body (110), characterized in that: The outboard motor body (110) is symmetrically equipped with a first fan (111) and a second fan (112) inside. A drive motor (113) is installed on the outside of the outboard motor body (110). The shaft of the drive motor (113) is connected to the first fan (111). A connecting mechanism (120) is installed inside the outboard motor body (110). One end of the connecting mechanism (120) is connected to the second fan (112). A protective housing (130) is installed inside the outboard motor body (110). A first rotating bead (131) and a second rotating bead (132) for adjusting the wind direction are installed on the inner wall of the protective housing (130).

2. The heat dissipation structure for an electric outboard motor according to claim 1, characterized in that: The connecting mechanism (120) includes a rotating shaft (121) rotatably mounted inside the outboard motor body (110), a connecting shaft (122) rotatably mounted on the inner wall of the outboard motor body (110), a first transmission wheel (123) mounted on the rotating shaft of the drive motor (113), and a second transmission wheel (124) mounted on the rotating shaft (121). A transmission belt (125) is connected to the first transmission wheel (123) and the second transmission wheel (124).

3. The heat dissipation structure for an electric outboard motor according to claim 2, characterized in that: The first transmission wheel (123) is provided in two sets, one set of which is mounted on the connecting shaft (122), and the second fan (112) is mounted on the surface of the connecting shaft (122).

4. The heat dissipation structure for an electric outboard motor according to claim 1, characterized in that: The first rotating bead (131) and the second rotating bead (132) are respectively provided with air transmission holes (140). Circular plates (141) are symmetrically installed between the rotating shafts of the drive motor (113). A connecting rod (142) is installed between the two circular plates (141). A push rod (143) is rotatably sleeved on the surface of the connecting rod. A cylinder (144) is installed on the side of the first rotating bead (131). The cylinder (144) and the push rod (143) are rotatably engaged.

5. The heat dissipation structure for an electric outboard motor according to claim 1, characterized in that: A micro motor (145) is installed in the inner wall of the protective housing (130), and the shaft of the micro motor (145) is connected to the second rotating ball (132).

6. The heat dissipation structure for an electric outboard motor according to claim 1, characterized in that: The electric outboard motor housing has symmetrically arranged air inlets (150) and air outlets (151) on its surface. The first fan (111) is located near the air inlet (150), and the second fan (112) is located near the air outlet (151).

7. The heat dissipation structure for an electric outboard motor according to claim 1, characterized in that: The first fan (111) is configured as a blower fan, and the second fan (112) is configured as a suction fan.

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