Backlight module capable of efficiently brightening
By integrating an efficient thermal conductivity mechanism and a coolant cooling mechanism into the backlight module, the problem of low cooling efficiency of MiniLED lamp beads is solved, which significantly improves the heat dissipation ability and brightness stability of the backlight module, extends the service life and achieves a higher brightness backlight effect.
Patent Information
- Application Number
- CN202422529135.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-19
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-10-19
AI Technical Summary
The existing high-efficiency brightening backlight module has low heat dissipation and cooling efficiency for MiniLED lamp beads, resulting in overheating damage to the lamp beads and shortening their service life.
A backlight module including an efficient thermal conductivity mechanism and a coolant cooling mechanism is designed. The efficient thermal conduction mechanism quickly takes away the heat generated by the MiniLED lamp beads through the thermal pad, hollow thermal conduction head and communication pipe, and the coolant cooling mechanism efficiently cools the insulated coolant through the liquid storage tank, heat dissipation fins and coolant circulation system.
It significantly improves the heat dissipation ability and brightness stability of the backlight module, extends the service life, and provides the possibility to achieve higher brightness backlight effects.
Smart Images
Figure CN222994803U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of backlight modules, and particularly relates to a backlight module with high efficiency and brightness enhancement. Background Art
[0002] The backlight module is a key component in a liquid crystal display (LCD), and its main function is to provide sufficient and evenly distributed light sources for the LCD panel so that images and texts can be displayed normally. Existing backlight modules with high efficiency and brightness enhancement often adopt MiniLED backlight modules.
[0003] However, due to the excessive number of lamp beads in existing MiniLED backlight modules, the heat generated by multiple lamp beads is likely to accumulate inside the display housing, thereby reducing the service life of the display screen. Existing display screens with MiniLED backlight modules often use passive heat dissipation or air cooling methods to dissipate heat from MiniLED lamp beads, and the heat dissipation efficiency is relatively low. Summary of the Utility Model
[0004] The utility model provides a backlight module with high efficiency and brightness enhancement, aiming to solve the problem of relatively low heat dissipation and cooling efficiency of existing MiniLED lamp beads in backlight modules with high efficiency and brightness enhancement as mentioned in the above background art.
[0005] To solve the above problems, the utility model is implemented as follows. A backlight module with high efficiency and brightness enhancement includes: a substrate; a plurality of MiniLED lamp beads mounted on the substrate; a metal cover fixedly mounted on the substrate; a plurality of rectangular grooves opened on the substrate; an efficient heat conduction mechanism provided on the substrate, and the efficient heat conduction mechanism is used to quickly take away the heat generated by the operation of the plurality of MiniLED lamp beads; a coolant cooling mechanism mounted on the metal cover, and the coolant cooling mechanism is used to quickly cool the insulating coolant.
[0006] Preferably, the efficient heat conduction mechanism includes: a plurality of heat conduction pads respectively arranged on the inner walls of the plurality of rectangular grooves, and the plurality of heat conduction pads are respectively connected to the plurality of MiniLED lamp beads; a plurality of hollow heat conduction heads respectively arranged on the plurality of heat conduction pads; a plurality of communication pipes respectively arranged on the plurality of hollow heat conduction heads; two liquid guide pipes arranged on two of the hollow heat conduction heads.
[0007] Preferably, the coolant cooling mechanism includes: a liquid storage tank fixedly mounted on the metal cover; heat dissipation fins fixedly mounted on the liquid storage tank; a heat conduction copper pipe arranged on the heat dissipation fins and communicating with the liquid storage tank; a plurality of fans arranged on the heat dissipation fins; a coolant circulation mechanism mounted on the liquid storage tank.
[0008] Preferably, the coolant circulation mechanism includes: a circulation pump disposed on the liquid storage tank, the inlet end of the circulation pump being communicated with the liquid storage tank; a return pipe disposed at one end of the heat-conducting copper pipe and communicated with one of the liquid guide pipes; a liquid supply pipe disposed at the outlet end of the circulation pump and communicated with the other liquid guide pipe.
[0009] Preferably, a control module is disposed on the liquid storage tank, and the control module is electrically connected to a plurality of the MiniLED lamp beads, a plurality of fans, and the circulation pump.
[0010] Preferably, a control interface and a power supply interface are disposed on the control module, and temperature probes are disposed on a plurality of the heat-conducting pads, and the plurality of temperature probes are electrically connected to the control module.
[0011] Preferably, a liquid injection port is formed on the liquid storage tank, and a sealing cover is disposed on the liquid injection port.
[0012] Compared with the related art, the high-efficiency brightening backlight module provided by the present utility model has the following beneficial effects:
[0013] Compared with the prior art, in the high-efficiency brightening backlight module provided by the present solution, the substrate serves as the support basis of the entire backlight module. The substrate not only stably bears a plurality of MiniLED lamp beads, but also integrates the installation positions required for the high-efficiency heat-conducting mechanism and the coolant cooling mechanism, providing a solid platform for the stable operation of the entire system. A plurality of MiniLED lamp beads are installed on the substrate. These MiniLED lamp beads, with their characteristics of high brightness, low power consumption, and long service life, become the key to achieving high-efficiency brightening. By being densely arranged, they can jointly emit bright and uniform light, meeting the high-brightness requirements of the backlight module. The metal cover is fixedly installed on the substrate to protect the user from the high-efficiency heat-conducting mechanism. A plurality of rectangular grooves are formed on the substrate, and these rectangular grooves are used to install the high-efficiency heat-conducting mechanism. The high-efficiency heat-conducting mechanism is disposed on the substrate and can quickly take away the heat generated by the operation of the MiniLED lamp beads, effectively reducing the working temperature of the lamp beads, preventing overheating damage, and extending the service life. The coolant cooling mechanism is installed on the metal cover, and this mechanism can efficiently cool the insulating coolant, thereby ensuring that the insulating coolant can continuously cool the MiniLED lamp beads;
[0014] In summary, the present invention realizes the efficient thermal management of the MiniLED lamp beads by integrating the high-efficiency heat-conducting mechanism and the coolant cooling mechanism, significantly improving the heat dissipation capacity and brightness stability of the backlight module. This not only helps to extend the service life of the backlight module, but also provides the possibility of achieving a higher-brightness backlight effect. Description of the Drawings
[0015] Figure 1It is a three-dimensional structural schematic diagram of a high-efficiency brightening backlight module provided by the present utility model;
[0016] Figure 2 is Figure 1 the top-down sectional structural schematic diagram in
[0017] Figure 3 is Figure 1 the enlarged structural schematic diagram of part A shown in
[0018] Figure 4 is Figure 2 the enlarged structural schematic diagram of part B shown in
[0019] Reference numerals: 1, substrate; 2, MiniLED lamp beads; 3, metal cover; 4, rectangular groove; 5, heat-conducting pad; 6, hollow heat-conducting head; 7, connecting pipe; 8, liquid guide pipe; 9, liquid storage tank; 10, heat dissipation fins; 11, heat-conducting copper pipe; 12, fan; 13, circulation pump; 14, liquid return pipe; 15, liquid supply pipe; 16, control module; 17, control interface; 18, power supply interface; 19, temperature probe; 20, liquid injection port; 21, sealing cover. Detailed implementation manners
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the terms "inner", "outer", "left", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0021] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0022] The embodiments of the present utility model provide a high-efficiency brightening backlight module, such asFigures 1-4 As shown in the figure, the high-efficiency brightness-enhancing backlight module includes: a substrate 1; a plurality of MiniLED beads 2 mounted on the substrate 1; a metal cover 3 fixedly mounted on the substrate 1; a plurality of rectangular grooves 4 formed on the substrate 1; a high-efficiency heat conduction mechanism provided on the substrate 1, which is used to quickly remove the heat generated by the operation of the plurality of MiniLED beads 2; and a coolant cooling mechanism mounted on the metal cover 3, which is used to quickly cool the insulating coolant.
[0023] In this embodiment, the substrate 1 serves as the support basis for the entire backlight module. The substrate 1 not only stably bears the plurality of MiniLED beads 2, but also integrates the installation positions required for the high-efficiency heat conduction mechanism and the coolant cooling mechanism, providing a solid platform for the stable operation of the entire system. The plurality of MiniLED beads 2 are mounted on the substrate 1. With their characteristics of high brightness, low power consumption, and long lifespan, they become the key to achieving high-efficiency brightness enhancement. By being densely arranged, they can jointly emit bright and uniform light, meeting the high-brightness requirements of the backlight module. The metal cover 3 is fixedly mounted on the substrate 1 to protect the high-efficiency heat conduction mechanism for the user. The plurality of rectangular grooves 4 are formed on the substrate 1, and these rectangular grooves are used to mount the high-efficiency heat conduction mechanism. The high-efficiency heat conduction mechanism is provided on the substrate 1 and can quickly remove the heat generated by the operation of the MiniLED beads, effectively reducing the working temperature of the beads, preventing overheating damage, and extending the service life. The coolant cooling mechanism is mounted on the metal cover 3, and this mechanism can efficiently cool the insulating coolant, thereby ensuring that the insulating coolant can continuously cool the MiniLED beads;
[0024] In summary, the present invention realizes efficient thermal management of MiniLED beads by integrating a high-efficiency heat conduction mechanism and a coolant cooling mechanism, significantly improving the heat dissipation capacity and brightness stability of the backlight module. This not only helps to extend the service life of the backlight module, but also provides the possibility of achieving a higher-brightness backlight effect.
[0025] In a further preferred embodiment of the present utility model, the high-efficiency heat conduction mechanism includes: a plurality of heat conduction pads 5 respectively provided on the inner walls of the plurality of rectangular grooves 4, and the plurality of heat conduction pads 5 are respectively connected to the plurality of MiniLED beads 2; a plurality of hollow heat conduction heads 6 respectively provided on the plurality of heat conduction pads 5; a plurality of connecting pipes 7 respectively provided on the plurality of hollow heat conduction heads 6; and two liquid guide pipes 8 provided on two of the plurality of hollow heat conduction heads 6.
[0026] In this embodiment, through one of the liquid guide tubes 8, low-temperature insulating coolant can be introduced into a hollow heat conduction head 6. Through a plurality of connecting tubes 7, a plurality of hollow heat conduction heads 6 can be connected and communicated with each other. Through the other liquid guide tube 8, the heated insulating coolant can be introduced. Through the insulating coolant passing through the inside of the plurality of hollow heat conduction heads 6, the plurality of MiniLED beads 2 can be efficiently cooled, thereby improving the operating stability of the plurality of MiniLED beads 2.
[0027] In a further preferred embodiment of the present utility model, the coolant cooling mechanism includes: a liquid storage tank 9 fixedly installed on the metal cover 3; heat dissipation fins 10 fixedly installed on the liquid storage tank 9; a heat conduction copper tube 11 arranged on the heat dissipation fins 10 and communicated with the liquid storage tank 9; a plurality of fans 12 arranged on the heat dissipation fins 10; and a coolant circulation mechanism installed on the liquid storage tank 9.
[0028] In this embodiment, through the heat conduction copper tube 11, the heat in the heated insulating coolant can be guided to the heat dissipation fins 10, and the heat on the heat dissipation fins 10 can be taken away by the airflow generated by the plurality of fans 12, thereby efficiently cooling the insulating coolant.
[0029] In a further preferred embodiment of the present utility model, the coolant circulation mechanism includes: a circulation pump 13 arranged on the liquid storage tank 9, and the liquid inlet end of the circulation pump 13 is communicated with the liquid storage tank 9; a return liquid tube 14 arranged at one end of the heat conduction copper tube 11 and communicated with one of the liquid guide tubes 8; and a liquid supply tube 15 arranged at the liquid outlet end of the circulation pump 13 and communicated with the other liquid guide tube 8.
[0030] In this embodiment, through the circulation pump 13, the insulating coolant in the liquid storage tank 9 can be pumped out and sent into the high-efficiency heat conduction mechanism through the liquid supply tube 15. After the high-efficiency heat conduction mechanism dissipates heat from the plurality of MiniLED beads 2 and heats up the insulating coolant, the heated insulating coolant enters the coolant cooling mechanism along the return liquid tube 14 for cooling.
[0031] In a further preferred embodiment of the present utility model, a control module 16 is arranged on the liquid storage tank 9, and the control module 16 is electrically connected to the plurality of MiniLED beads 2, the plurality of fans 12, and the circulation pump 13.
[0032] In this embodiment, the backlight module can be controlled through the control module 16.
[0033] In a further preferred embodiment of the present utility model, a control interface 17 and a power supply interface 18 are arranged on the control module 16, and temperature probes 19 are arranged on each of the plurality of heat conduction pads 5, and the plurality of temperature probes 19 are all electrically connected to the control module 16.
[0034] In this embodiment, the power supply line and the control line can be respectively connected through the control interface 17 and the power supply interface 18, and the operating temperature of each MiniLED lamp bead 2 can be independently monitored through a plurality of temperature probes 19.
[0035] In a further preferred embodiment of the present utility model, a liquid injection port 20 is provided on the liquid storage tank 9, and a sealing cover 21 is provided on the liquid injection port 20.
[0036] In this embodiment, the liquid storage tank 9 can be filled with insulating coolant through the liquid injection port 20, and the liquid injection port 20 can be sealed through the sealing cover 21.
[0037] In summary, compared with the related art, the present device can not only increase the brightness of the display screen with high efficiency, but also dissipate heat from each MiniLED lamp bead efficiently, improve the service life of the MiniLED backlight module, and has strong operating stability.
[0038] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.
[0039] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present utility model according to the situation without creative work, so as to obtain different technical solutions that are essentially not divorced from the concept of the present utility model, and these technical solutions also belong to the scope of protection of the present utility model.
Claims
1. A high-efficiency brightening backlight module, characterized in that, Comprising: Substrate; A plurality of MiniLED lamp beads mounted on the substrate; A metal cover fixedly mounted on the substrate; A plurality of rectangular grooves opened on the substrate; An efficient heat conduction mechanism provided on the substrate, the efficient heat conduction mechanism being used to quickly remove the heat generated by the operation of the plurality of MiniLED lamp beads; A coolant cooling mechanism mounted on the metal cover, the coolant cooling mechanism being used to quickly cool the insulating coolant.
2. The high-efficiency brightening backlight module according to claim 1, characterized in that, The efficient heat conduction mechanism includes: A plurality of heat conduction pads respectively provided on the inner walls of the plurality of rectangular grooves, the plurality of heat conduction pads being respectively connected to the plurality of MiniLED lamp beads; A plurality of hollow heat conduction heads respectively provided on the plurality of heat conduction pads; A plurality of connecting pipes respectively provided on the plurality of hollow heat conduction heads; Two liquid guide pipes provided on two of the hollow heat conduction heads.
3. The high-efficiency brightening backlight module according to claim 2, characterized in that, The coolant cooling mechanism includes: A liquid storage tank fixedly mounted on the metal cover; Heat dissipation fins fixedly mounted on the liquid storage tank; A heat conduction copper pipe provided on the heat dissipation fins and communicating with the liquid storage tank; A plurality of fans provided on the heat dissipation fins; A coolant circulation mechanism mounted on the liquid storage tank.
4. The high-efficiency brightening backlight module according to claim 3, characterized in that, The coolant circulation mechanism includes: A circulation pump provided on the liquid storage tank, the inlet end of the circulation pump communicating with the liquid storage tank; A return pipe provided at one end of the heat conduction copper pipe and communicating with one of the liquid guide pipes; A liquid supply pipe provided at the outlet end of the circulation pump and communicating with the other liquid guide pipe.
5. The high-efficiency brightening backlight module according to claim 4, characterized in that, A control module is provided on the liquid storage tank, and the control module is electrically connected to the plurality of MiniLED lamp beads, the plurality of fans and the circulation pump.
6. The high-efficiency brightening backlight module according to claim 5, characterized in that, A control interface and a power supply interface are provided on the control module, and temperature probes are provided on the plurality of heat conduction pads, and the plurality of temperature probes are electrically connected to the control module.
7. The high-efficiency brightening backlight module according to claim 3, characterized in that, A liquid injection port is opened on the liquid storage tank, and a sealing cover is provided on the liquid injection port.