Multi-air-duct heat dissipation motorcycle power box

By using a multi-channel cooling system, air circulation is formed by the wind pressure of the vehicle's movement, which solves the problems of single cooling path and low airflow utilization efficiency of motorcycles, and achieves a high-efficiency and energy-saving cooling effect.

CN224589293UActive Publication Date: 2026-08-04WENLING LIDA NACHINERY ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENLING LIDA NACHINERY ELECTRIC APPLIANCE CO LTD
Filing Date
2025-07-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing motorcycle cooling systems have a single heat dissipation path and low airflow utilization efficiency under high heat flux density, making it difficult to meet the stability and performance requirements of high temperature or high load operation.

Method used

The system employs a multi-channel cooling system, including side air intakes and side exhaust ports on both sides of the vehicle body shell. Combined with the air duct assembly and the inclined plate radiator, it utilizes the wind pressure from the vehicle's movement to form an air circulation without an external power source, and achieves efficient airflow extraction through the siphon port.

Benefits of technology

It achieves efficient heat dissipation without the need for an additional power source, improving the heat dissipation efficiency and stability of the motorcycle power system, and has the advantages of simple structure and low energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a multi-channel cooling motorcycle power box, including a power frame, a box shell, a plate radiator, and an air duct assembly. The box shell is fixed to the surface of the power frame, with side air inlets and side exhaust outlets on both sides. The plate radiator is fixedly installed inside the power frame, with an airflow channel at its bottom for guiding airflow in the direction of vehicle travel. The air duct assembly runs through the inside of the box shell and includes a main throat pipe and filter covers at both ends. The main throat pipe has an air inlet section, a throat section, and an exhaust section in sequence, with multiple siphon ports on the top surface of the throat section. This utility model has a compact structure and reasonable airflow organization, and features passive heat exchange without the need for an external fan, making it suitable for the cooling needs of high-heat-load motorcycle engines.
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Description

Technical Field

[0001] This utility model relates to the field of motorcycle heat dissipation structure technology, specifically a multi-channel heat dissipation motorcycle power box. Background Technology

[0002] Motorcycles, as a flexible and efficient means of transportation, are widely used in daily commuting and special work conditions. With the increase in engine power and the increase in long-term high-speed driving conditions, the working heat load of motorcycle power systems has increased significantly, placing higher demands on the heat dissipation capacity of cooling systems. Traditional motorcycles often use natural air cooling or fan-assisted forced air cooling systems for heat dissipation, and their structure mainly includes engine cooling fins, air ducts, and simple intake and exhaust ports.

[0003] In existing technologies, some high-performance motorcycles attempt to introduce liquid cooling systems, which transfer heat to the radiator by arranging liquid cooling coils on the engine surface. While liquid cooling systems improve heat dissipation efficiency, they often require an electric fan to maintain the circulation of coolant, leading to the following problems: Single heat dissipation path: Existing air-cooled or liquid-cooled systems mostly adopt a single-side air intake and single-side air exhaust structure, lacking multi-path air duct optimization design, which makes it difficult to meet the uniform heat dissipation requirements of the engine under high heat flux density. Low airflow efficiency: Some existing designs do not fully utilize the natural wind effect during vehicle movement, resulting in low efficiency in airflow introduction and heat extraction. Especially without external fan assistance, existing natural cooling structures struggle to achieve efficient air heat exchange, limiting the stability and performance of motorcycles under high-temperature or high-load operating conditions.

[0004] Therefore, there is an urgent need for a cooling system with a simplified structure, optimized airflow path, and the ability to fully utilize the vehicle's wind pressure for gas introduction and high-temperature exhaust, in order to improve the cooling efficiency and reliability of motorcycle power units and meet the current comprehensive requirements of high heat load and energy saving in power systems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: a multi-channel cooling motorcycle power box, comprising: a power frame, a plate radiator, a drain pipe assembly, and a chassis shell fixedly installed on the surface of the power frame. The chassis shell has side air inlets and side exhaust outlets on both sides respectively. The plate radiator is fixed to the inside of the power frame, and its bottom end connects to the airflow channel inside the chassis shell. The drain pipe assembly is fixed to the inside of the chassis shell and extends through both ends. The drain pipe assembly includes a main throat pipe and filter covers fixed to both ends. Multiple siphon ports are provided on the top surface of the main throat pipe.

[0007] In a preferred embodiment, the plate radiator is further configured such that it is inclined relative to the ground, so that during vehicle operation, external cold air can naturally slide down its surface and be introduced into the airflow channel; specifically, by guiding the airflow along the inclined surface of the radiator, the heat exchange efficiency of the radiator can be improved, and passive heat exchange of the airflow can be achieved.

[0008] In a preferred embodiment, the plate radiator is further configured such that it adopts a liquid-cooled heat exchange structure, and its end is connected to a liquid-cooled coil arranged on the surface of the motorcycle engine through a pipe; specifically, this structure allows the engine heat to be conducted to the radiator area through the liquid cooling system and exchanged with the airflow for heat, effectively controlling the engine operating temperature and enhancing system stability.

[0009] In a preferred embodiment, the side air intake and the air intake direction of the duct assembly are aligned with the windward direction of the power frame. Specifically, this configuration helps to maximize the use of the natural wind pressure difference during vehicle movement and guide cold air into the system.

[0010] In a preferred embodiment, the side exhaust port is further configured such that it is located on the leeward side of the plate radiator, serving as an exhaust channel for the airflow after heat dissipation. Specifically, this configuration can guide hot air to be smoothly discharged along a specific path inside the vehicle body, thereby improving the overall ventilation efficiency of the body.

[0011] In a preferred embodiment, the main throat is further configured as follows: the main throat is an integral structure, comprising an air intake section, a throat section, and an exhaust section in sequence, wherein the inner diameter of the air intake section gradually narrows along the direction opposite to the throat section, and the inner diameter of the exhaust section gradually widens along the direction away from the throat section; specifically, this pipe structure design can form an airflow contraction acceleration region inside the throat section, generating a low pressure difference, which is conducive to forming an effective negative pressure siphon channel.

[0012] In a preferred embodiment, the siphon port is further configured such that it vertically penetrates the top surface of the throat section and is used to introduce air from inside the vehicle body into the main throat section. Specifically, by using high-speed airflow to form a negative pressure in the throat section, multiple siphon ports work together to continuously draw in high-temperature gas from inside the body, effectively improving the system's heat dissipation intensity.

[0013] In summary, this utility model achieves an air self-circulation cooling path without the need for an external power source by structurally integrating the chassis shell airflow guide component, heat dissipation module and high-speed siphon system. While improving the engine's heat dissipation capacity, it has the advantages of simple structure, convenient maintenance and low energy consumption, and is particularly suitable for motorcycle power system heat dissipation scenarios in high-speed operation or high-temperature environments.

[0014] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, the multi-channel structure formed by the side air inlets and side exhaust outlets on both sides of the vehicle body shell and the drainage pipe assembly fixed inside the vehicle body shell creates a good intake and exhaust circulation path during vehicle movement. By utilizing the high-speed airflow zone formed in the throat section of the main throat pipe, combined with the negative pressure effect generated by the top siphon, the high-temperature airflow inside the power box is efficiently extracted and discharged, thereby improving the heat dissipation efficiency of the motorcycle power system.

[0015] 2. In this utility model, the plate radiator adopts an inclined arrangement, which can effectively utilize the airflow in the direction of vehicle travel to guide external cold air into the airflow channel, further enhancing the heat exchange capacity of airflow; when the plate radiator adopts a liquid-cooled heat exchange structure, it can effectively absorb the heat generated by the engine by connecting with the liquid-cooled coil on the surface of the engine, improving the heat transfer efficiency and stability of the overall cooling system, and realizing passive heat dissipation without additional power drive. It has significant advantages of simple structure, low energy consumption and strong adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the front structure of the vehicle body shell according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the drainage tube assembly structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the main throat tube according to an embodiment of the present invention.

[0017] Figure label: 100. Power frame; 110. Car body shell; 120. Side air intake; 130. Side exhaust; 140. Airflow duct; 200. Plate-type radiator; 300. Drainage tube assembly; 310. Main throat tube; 320. Filter screen cover; 330. Siphon inlet; 311. Air intake section; 312. Throat section; 313. Exhaust section. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0019] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a multi-channel cooling motorcycle power box.

[0021] Combination Figures 1-4 As shown, the present invention provides a multi-channel cooling motorcycle power box, comprising: a power frame 100, a plate radiator 200, a cooling pipe assembly 300, and a chassis shell 110 fixedly installed on the surface of the power frame 100. The chassis shell 110 has a cuboid structure, is located above the motorcycle power system, and is used to cover the power mechanism and install other components.

[0022] The vehicle body shell 110 is provided with side air inlets 120 and side exhaust outlets 130 on both sides. The side air inlets 120 are used to introduce external airflow in the windward direction during vehicle movement, while the side exhaust outlets 130 are used to exhaust hot air after heat exchange. The air intake direction of the side air inlets 120 and the air diversion pipe assembly 300 is consistent with the windward direction of the power frame 100 to improve air intake efficiency.

[0023] The plate radiator 200 is fixedly mounted on the inner side of the power frame 100, and its bottom end communicates with the airflow channel 140 inside the vehicle body shell 110. The plate radiator 200 is arranged obliquely along the longitudinal direction of the vehicle to utilize the intake airflow flowing along its surface and guiding air into the airflow channel 140, thereby further enhancing the heat dissipation effect. In particular, the plate radiator 200 is preferably a liquid-cooled heat exchanger structure, with its end connected to a liquid-cooled coil arranged on the surface of the motorcycle engine, for conducting the heat generated by the engine to the plate radiator 200 for heat exchange.

[0024] The drainage pipe assembly 300 is fixedly installed inside the vehicle body shell 110, and its two ends penetrate through the outer wall of the vehicle body shell 110. The drainage pipe assembly 300 includes a main throat pipe 310 and filter screen covers 320 fixed to both ends of the main throat pipe 310. The main throat pipe 310 is an integrally formed structure, with an intake section 311, a throat section 312, and an exhaust section 313 sequentially connected inside.

[0025] The air intake 311 is an open structure facing the direction of vehicle movement, and its inner diameter gradually narrows away from the vehicle, which facilitates the rapid introduction of air by facing the wind while the vehicle is moving; the throat 312 is located after the air intake 311, and its structure is a narrowing middle area, which is used to form a local high-speed airflow zone; the exhaust 313 is located after the throat 312, and its inner diameter gradually expands, which is conducive to the stable discharge of airflow.

[0026] Multiple siphon ports 330 are provided at the top of the main throat pipe 310. The siphon ports 330 vertically penetrate the top wall of the main throat pipe 310 and communicate with the interior of the vehicle body shell 110. During vehicle operation, the air intake section 311 draws in a large amount of air. This air forms a high-speed, low-pressure zone in the contraction section of the throat pipe section 312, thereby generating a negative pressure at the siphon ports 330, which draws hot air from inside the vehicle body shell 110 into the main throat pipe 310. After the drawn-in hot air mixes with the intake airflow, it is discharged together through the exhaust section 313.

[0027] With the above-mentioned structure in combination, during vehicle operation, the side air intake 120 and the air intake 311 introduce air from multiple directions; the plate radiator 200 guides the air to exchange heat with the engine, forming an alternating flow of hot and cold air; while the main duct 310 effectively draws the hot air inside the housing to the outside through the physical siphon principle, and finally discharges it through the side exhaust port 130, achieving a continuous and stable multi-channel ventilation and heat dissipation effect.

[0028] In summary, the multi-channel cooling motorcycle power box of this utility model can achieve efficient cooling and heat release of the power system by relying solely on the natural airflow generated by the vehicle's movement, without the need for an additional drive fan. It has significant advantages such as compact structure and energy efficiency.

[0029] Working principle and usage process of this utility model: This invention provides a multi-channel cooling motorcycle power box, which, through a scientifically designed airflow structure and combined with the airflow during vehicle movement, achieves efficient cooling of the motorcycle engine and its power system. Its specific working principle is as follows: When the motorcycle is in motion, air is drawn into the interior of the chassis through the side air intakes 120 on both sides of the chassis shell 110. Simultaneously, the intake port 311 draws in external airflow, creating a high-speed airflow zone inside the throat section 312 of the main throat pipe 310, generating a high negative pressure effect. This airflow is then vertically introduced into the chassis shell 110 through the siphon port 330 and discharged through the exhaust section 313. Multiple siphon ports 330 located at the top of the main throat pipe 310, under the influence of negative pressure, draw out hot air or high-temperature air from inside the chassis shell 110.

[0030] At this point, the heat exchange path formed by the plate radiator 200 begins to function: on the one hand, air flows through the inclined surface of the plate radiator 200 and is guided into the airflow channel 140; on the other hand, if the plate radiator 200 is a liquid-cooled structure, it also exchanges heat with the engine through the liquid-cooled coils, absorbing its heat. The heat-exchanged airflow or hot air is discharged from the side exhaust port 130 on the leeward side of the vehicle body shell 110 and discharged through the rear side of the vehicle body shell 110, realizing continuous circulation of airflow and heat inside the power box.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-channel cooling motorcycle power box, characterized in that, include: The vehicle includes a power frame (100), a plate radiator (200), a drain pipe assembly (300), and a vehicle body shell (110) fixed to the surface of the power frame (100). The vehicle body shell (110) has side air inlets (120) and side exhaust outlets (130) on both sides. The plate radiator (200) is fixedly installed inside the power frame (100), and the bottom of the plate radiator (200) is located on the vehicle body. The airflow channel (140) inside the housing (110) is used to guide airflow in the direction of vehicle travel. The drainage pipe assembly (300) is fixed inside the vehicle housing (110) and its two ends pass through the vehicle housing (110). The drainage pipe assembly (300) includes a main throat pipe (310) and filter screens (320) fixed at both ends of the main throat pipe (310). The top surface of the main throat pipe (310) is provided with several siphon ports (330).

2. The multi-channel cooling motorcycle power box according to claim 1, characterized in that, The plate radiator (200) is arranged at an angle to guide airflow along the surface of the plate radiator (200) into the interior of the airflow channel (140).

3. The multi-channel cooling motorcycle power box according to claim 1, characterized in that, The plate radiator (200) is a liquid-cooled heat exchanger structure, and the end of the plate radiator (200) is connected to a liquid-cooled coil arranged on the surface of the motorcycle engine.

4. The multi-channel cooling motorcycle power box according to claim 1, characterized in that, The air intake direction of the side air inlet (120) and the drainage pipe assembly (300) is the same as the windward direction of the power frame (100).

5. A multi-channel cooling motorcycle power box according to claim 1, characterized in that, The side exhaust port (130) is located on the leeward side of the plate radiator (200) and is used to exhaust the airflow after passing through the plate radiator (200).

6. A multi-channel cooling motorcycle power box according to claim 1, characterized in that, The main throat (310) is an integral structure and includes an air intake (311), a throat (312) and an exhaust (313) connected to each other in sequence. The inner diameter of the air intake (311) gradually narrows in the direction opposite to the throat (312), and the inner diameter of the exhaust (313) gradually widens in the direction away from the throat (312).

7. A multi-channel cooling motorcycle power box according to claim 6, characterized in that, The siphon (330) is vertically penetrating the top surface of the throat (312) and is used to introduce airflow into the interior of the main throat (310).