Projection device and terminal

By incorporating a heat transfer structure with a cold plate and protrusions in the projection device, combined with seals and vent valves, the problems of condensation and leakage are solved, improving the stability and reliability of the projection device and ensuring normal operation in high humidity environments.

CN224480647UActive Publication Date: 2026-07-10YINWANG INTELLIGENT TECHNOLOGIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YINWANG INTELLIGENT TECHNOLOGIES CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing projection devices are prone to condensation during heat dissipation, which can lead to short circuits in internal components. Furthermore, in high humidity environments, coolant leakage can affect component operation.

Method used

The design employs a cold plate structure, placing the coolant flow path outside the housing's containment space. Heat transfer occurs through contact between the boss and the light source, while seals and vent valves prevent condensate and leaks from entering the interior. Heat and humidity are managed using a combination of heat conductors and moisture-absorbing materials.

Benefits of technology

It effectively prevents condensate and coolant from entering the interior, improves the stability and reliability of component operation, reduces the risk of component damage, and ensures the normal operation of the projection device in high humidity environments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224480647U_ABST
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Abstract

The application provides a projection device and a terminal. The projection device comprises a shell, a light source and a cold plate. The shell comprises a light-out surface and a mounting surface. The shell is provided with a receiving space, a light-out hole and a heat-conducting hole. The light-out hole and the heat-conducting hole both penetrate the shell and communicate with the receiving space. The light-out hole penetrates the light-out surface. The light-out surface is used for emitting projection light. The heat-conducting hole penetrates the mounting surface. The light source is installed in the receiving space. The light source comprises a heat-dissipation surface. The heat-dissipation surface faces the heat-conducting hole. The cold plate is used for containing cooling liquid. The cold plate comprises a heat-exchange surface and a heat-absorption surface. The cold plate is located outside the receiving space of the shell. The heat-absorption surface faces the mounting surface. The heat-exchange surface is used for being connected with a heat exchanger. A boss is protruded on the heat-absorption surface. The boss is in contact with the heat-dissipation surface of the light source through the heat-conducting hole. The application can avoid the formation of flowing water in the projection device, so that the operation of the projection device can be more stable.
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