A press plate with heating function for attaching a diffusion plate of a surface light source

Abstract

The utility model belongs to the technical field of household appliance, specifically disclose a kind of for area light diffusion plate attachment's with heating function's pressboard, including fixed plate and the heat conduction layer of being located below fixed plate;Heating plate is further equipped on the fixed plate, and the heating plate is used to heat the heat conduction layer.The utility model provides a kind of for area light diffusion plate attachment's with heating function's pressboard, can significantly shorten the pressure maintaining time, improve area light assembly efficiency, to solve the problem of low production efficiency in prior art due to colloid solidification slow.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a pressure plate with heating function for attaching a surface light source diffuser plate. Background Technology

[0002] Surface light source components (such as backlight modules) are the core optical components of liquid crystal display devices. Their conventional structure mainly includes five core components: diffuser plate, light guide plate, reflector, LED strip, and plastic frame. In the existing assembly process, the LED strip is first fixed in the preset slot of the plastic frame, and the reflector and light guide plate are stacked in sequence; then, the joint surface between the plastic frame and the light guide plate is coated with adhesive on the adhesive application platform.

[0003] After the adhesive is applied, the diffuser plate needs to be automatically assembled using a pressure plate assembly. This assembly uses a negative pressure suction cup to pick up the diffuser plate, precisely moves it above the plastic frame, and applies pressure to make the diffuser plate adhere to the adhesive surface, then applies continuous pressure for pressure holding and curing. This pressure holding process is a key step to ensure uniform adhesion of the adhesive layer.

[0004] However, the existing pressure holding and curing process has the following drawbacks: First, due to the use of curing adhesives, the curing time is relatively long (usually several minutes to tens of minutes), which seriously prolongs the production cycle of the pressure holding process; second, the excessively long curing cycle directly restricts the overall speed of the production line, especially in multi-station continuous production, forming process blockage points, making it difficult to meet the demand for high-volume production.

[0005] In summary, the existing technology suffers from low production efficiency due to the long pressure holding time during the pressing process of the diffusion plate and plastic frame. Utility Model Content

[0006] This invention provides a pressure plate with heating function for attaching diffuser plates to surface light sources, which can solve the problem of low production efficiency caused by long pressure holding time during the pressing process of diffuser plates and plastic frames in the prior art.

[0007] A heating plate for attaching a diffuser plate of a surface light source includes a fixing plate and a heat-conducting layer disposed below the fixing plate.

[0008] The fixing plate is also provided with a heating plate, which is used to heat the heat-conducting layer.

[0009] Furthermore, the heating plate is equipped with a heating device.

[0010] Furthermore, the heating device is an electric heating wire or a heating water pipe.

[0011] Furthermore, the electric heating wire is spiral-shaped.

[0012] Furthermore, the heating water pipes are arranged in a serpentine pattern, and the heating water pipes are used to connect to an external temperature control circulation system.

[0013] Furthermore, a heat insulation layer is provided between the fixing plate and the heating plate.

[0014] Furthermore, the heating plate is disposed between the fixed plate and the heat-conducting layer.

[0015] Furthermore, the heating plate has a rectangular frame structure;

[0016] The heating plate is sleeved on the outside of the fixed plate.

[0017] Furthermore, the top of the fixing plate is provided with a plurality of first mounting holes, and a suction cup connecting tube is provided in the first mounting holes, and a suction cup is provided at the bottom of the suction cup connecting tube;

[0018] A second mounting hole is provided on the heat-conducting layer at the position corresponding to the first mounting hole, and the second mounting hole is used to accommodate the suction cup.

[0019] Furthermore, the inner diameter of the second mounting hole is larger than the outer diameter of the suction cup.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention provides a heating plate for attaching diffuser plates to surface light sources. By setting a heat-conducting layer below a fixed plate and a heating plate on the fixed plate, the heating plate heats the heat-conducting layer, enabling high-temperature accelerated curing of the adhesive. Compared with existing technologies, this significantly improves production efficiency. Specifically: First, the fixed plate is used for adsorption of the diffuser plate and subsequent pressure holding operations. By setting a heat-conducting layer below the fixed plate and a heating plate on the fixed plate, the curing time can be accelerated at a certain temperature based on the properties of the adhesive. Therefore, during the pressing process, the fixed plate applies directional heat conduction to the diffuser plate, thereby significantly reducing the curing reaction time of the adhesive. Second, after completing a single pressing, the fixed plate only needs to maintain pressure for a short time before releasing, shortening the equipment occupancy cycle and improving production efficiency. Third, the heat-conducting layer and heating plate are directly integrated into the existing fixed plate, eliminating the need to modify the production line layout and reducing equipment investment. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of a heating plate for attaching a diffuser plate to a surface light source, provided in Embodiment 1 of this utility model.

[0024] Figure 2 An exploded view of the structure of a heating pressure plate for attaching a diffuser plate to a surface light source, provided in Embodiment 1 of this utility model;

[0025] Figure 3 This is a partial structural diagram of a pressure plate with heating function for attaching a diffuser plate to a surface light source, provided in Embodiment 5 of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Fixing plate; 2. Heat-conducting layer; 3. Heating plate; 4. Heat insulation layer; 5. Suction cup connecting tube; 6. Suction cup; 21. Second mounting hole; 31. Third mounting hole. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0028] Surface light source components (such as backlight modules) are the core optical components of liquid crystal display devices. Their conventional structure mainly includes five core components: a diffuser plate, a light guide plate, a reflector, LED strips, and a plastic frame. In existing assembly processes, the LED strips are first fixed to pre-set slots in the plastic frame, and then the reflector and light guide plate are stacked sequentially. Next, adhesive is applied to the mating surfaces of the plastic frame and the light guide plate on an adhesive application platform. After adhesive application, the diffuser plate is automatically assembled using a pressure plate assembly: this assembly uses a negative pressure suction cup to pick up the diffuser plate, precisely moves it above the plastic frame, and applies pressure to adhere the diffuser plate to the adhesive surface, maintaining pressure for curing. This pressure-holding process is a crucial step to ensure uniform adhesion of the adhesive layer.

[0029] However, the existing pressure holding and curing process has the following drawbacks: First, it uses a curing adhesive, which has a long curing time (usually several minutes to tens of minutes), which seriously prolongs the production cycle of the pressure holding process; second, the excessively long curing cycle directly restricts the overall speed of the production line, especially in multi-station continuous production, forming a process blockage point and making it difficult to meet the demand for high-volume production; third, the pressure plate assembly is in a continuously occupied state during the pressure holding period and cannot perform other handling or pressing tasks, resulting in a high equipment idle rate.

[0030] In summary, the existing technology suffers from low production efficiency due to the long pressure holding time during the pressing process of the diffusion plate and plastic frame.

[0031] Based on the above, this utility model provides a pressure plate with heating function for attaching diffuser plates of surface light sources, which can significantly shorten the pressure holding time and improve the assembly efficiency of surface light sources, thereby solving the problem of low production efficiency caused by slow curing of colloids in the prior art.

[0032] Example 1

[0033] like Figures 1 to 2 As shown, this embodiment provides a pressure plate with heating function for attaching a surface light source diffuser plate, including a fixing plate 1 and a heat-conducting layer 2 disposed below the fixing plate 1;

[0034] The fixed plate 1 is also provided with a heating plate 3, which is used to heat the heat-conducting layer 2;

[0035] Specifically, the heating plate 3 is equipped with a heating device, which transfers heat to the heat-conducting layer 2, thereby achieving the heating effect on the heat-conducting layer 2.

[0036] The pressure plate with heating function for attaching surface light source diffuser plate has a heat-conducting layer 2 below the fixing plate 1 and a heating plate 3 on the fixing plate 1. The heating plate 3 is used to heat the heat-conducting layer 2, which can achieve high-temperature accelerated curing of the adhesive and significantly improve production efficiency compared with the existing technology.

[0037] A heated pressure plate is used for attaching the diffuser plate to the surface light source during the pressing process. The specific procedure is as follows: the diffuser plate is adsorbed by the fixing plate 1. Since the fixing plate 1 has a heat-conducting layer 2, which can be heated by the heating plate 3, after the diffuser plate is adsorbed by the fixing plate 1, when the diffuser plate is moved to the plastic frame for pressing, the heated heat-conducting layer 2 can transfer heat to the joint between the diffuser plate and the plastic frame, significantly increasing the temperature at the joint and thus accelerating the curing rate of the colloid at the joint under high temperature. Based on this setup, the following advantages are achieved: Firstly, the fixing plate 1 is used for adsorbing the diffuser plate and subsequent pressure holding operations. By setting the heat-conducting layer 2 below the fixing plate 1… Furthermore, a heating plate 3 is installed on the fixed plate 1. Based on the properties of the adhesive, the curing time can be accelerated at a certain temperature. Therefore, during the pressing process, the fixed plate 1 applies directional heat conduction to the diffuser plate, thereby significantly reducing the curing reaction time of the adhesive. Secondly, after completing a single pressing, the fixed plate 1 only needs to maintain pressure for a short time before being released, shortening the equipment occupation cycle and improving production efficiency. Thirdly, the heat-conducting layer 2 and the heating plate 3 are directly integrated into the existing fixed plate 1, without the need to modify the production line layout, reducing equipment investment. Fourthly, it can eliminate the obstruction effect of the pressure holding process on the production flow, thereby increasing the assembly cycle of the surface light source, increasing the single-line capacity, and meeting the needs of large-scale continuous production.

[0038] Example 2

[0039] like Figures 1 to 2 As shown, this embodiment provides a pressure plate with heating function for attaching a diffuser plate of a surface light source. The difference from Embodiment 1 is that in this embodiment, the heating device is an electric heating wire, and the electric heating wire is spirally arranged inside the heating plate 3.

[0040] The heating structure of the fixing plate 1 achieves direct, uniform, and efficient heating of the contact surface between the diffuser plate and the plastic frame during the pressing process through the synergistic effect of the heating plate 3 with the built-in spiral heating wire and the heat-conducting layer 2. This greatly accelerates the curing speed of the colloid, improves production efficiency and bonding quality, and has significant advantages such as compact structure, high thermal efficiency, energy saving and consumption reduction, and easy operation.

[0041] Specifically, since the heating plate 3 is used to heat the heat-conducting layer 2, and a heating device is installed inside the heating plate 3, which uses an electric heating wire, that is, by setting the heat-conducting layer 2 at the bottom of the fixed plate 1 and integrating the heating plate 3 with a spiral electric heating wire on it, this solution can efficiently and directly transfer heat to the contact surface of the diffuser plate and the plastic frame during the pressing process. This heat can quickly raise the temperature of the adhesive layer between the two, prompting the adhesive to quickly complete the curing reaction in a high-temperature environment. Compared with the traditional natural curing method, this design significantly shortens the waiting time of the bonding process, thereby significantly improving the overall production efficiency.

[0042] Due to the built-in spiral heating wire structure of the heating plate 3, it has a larger effective heating area and more uniform heat distribution. This design ensures that heat can be evenly conducted to the entire surface of the heating plate 3, and then act uniformly on the entire contact area between the lower diffuser plate and the plastic frame through the heat-conducting layer 2. The uniform heat field distribution effectively avoids local overheating or underheating, allowing the adhesive layer between the diffuser plate and the plastic frame to cure synchronously and fully, fundamentally guaranteeing the strength, stability, and consistency of the bond, and improving product quality.

[0043] A spiral heating wire is embedded in the heating plate 3 and tightly integrated with the heat-conducting layer 2 and the fixing plate 1, forming a compact, efficient, and short heat conduction path integrated heating and pressing device. The spiral heating wire design optimizes the space utilization of the heat source, reduces heat loss during the transfer process, and improves the conversion efficiency of heat energy to the contact area between the diffuser plate and the plastic frame. This integrated design not only saves equipment space but also reduces the energy consumption required to maintain the required operating temperature, achieving the goal of energy saving and consumption reduction.

[0044] This solution integrates the heating function directly into the pressing and fixing plate 1, allowing the pressing and heating processes to occur simultaneously. This simplifies the complex process that previously required separate heating or moving the plate into heating equipment. Operators only need to perform routine pressing operations to simultaneously complete the heating and curing process, significantly reducing operational difficulty and complexity and improving the smoothness of the production line.

[0045] Example 3

[0046] like Figures 1 to 2As shown, this embodiment provides a heating plate for attaching a diffuser plate of a surface light source. The difference from Embodiments 1 and 2 is that in this embodiment, the heating device is a heating water pipe, and the heating water pipe is arranged in a serpentine pattern inside the heating plate 3. The heating water pipe is used to connect to an external temperature control circulation system.

[0047] This external temperature control circulation system generally includes a heating / cooling source, a circulation pump, an expansion tank / buffer tank, a temperature sensor, a temperature controller / PLC controller, a filter, heating water pipes, pipelines, and installation devices. The pipelines connect all components to form a loop. Its operating principle is as follows: The operator can set the target temperature required for operation on the temperature controller, and then start the system. The circulation pump starts working, driving the heat medium (usually water) to flow throughout the loop. When the temperature controller detects that the current temperature is lower than the set value, it starts the heating source to heat the medium. The heat generated by the heat source is transferred to the heat medium flowing through it, raising its temperature. The heated heat medium, driven by the circulation pump, flows through the pipeline to the serpentine heating water pipe inside the fixed plate. The high-temperature heat medium flows through the serpentine water pipe and conducts heat to the heating plate 3 through the pipe wall. After releasing heat, the temperature of the heat medium decreases and flows out from the outlet of the heating water pipe, forming a circulation.

[0048] Employing a serpentine arrangement of heating water pipes connected to an external temperature-controlled circulation system, high-precision and high-stability temperature control of the heating plate 3 and heat-conducting layer 2 can be achieved by precisely adjusting the temperature and flow rate of the circulating heat medium (such as hot water or heat transfer oil). This active circulation heating method avoids localized overheating or temperature fluctuations, ensuring uniform heat distribution in the contact area between the diffuser plate and the plastic frame during the pressing process. During pressing, this uniform and stable thermal field allows the adhesive layer between the diffuser plate and the plastic frame to cure at an optimal and constant temperature, significantly improving the consistency and reliability of the curing quality.

[0049] Using a circulating heat transfer medium fundamentally eliminates electrical safety hazards such as leakage, short circuits, and dry burning, as well as the problem of shortened lifespan due to high-temperature oxidation. The system operates more safely and reliably, making it particularly suitable for applications requiring fire and explosion protection. The external temperature control circulation system has comprehensive safety protection mechanisms (such as over-temperature protection and flow monitoring), further enhancing the safety and durability of the equipment.

[0050] The circulating heat medium has a large heat capacity, which makes the entire heating system have a large thermal inertia and a strong buffering capacity against external disturbances (such as brief contact with cold plates). It can effectively suppress sudden temperature drops or rises and maintain a high degree of stability in the process temperature.

[0051] The design of the external temperature control circulation system simplifies the structure of the heating core (serpentine water pipe), reducing the complexity and potential failure points of the fixed plate 1 body. The main core components, such as temperature control and pumping, are concentrated in the external equipment, facilitating centralized maintenance, repair, and upgrades. Simultaneously, one external temperature control system can flexibly serve multiple station-level fixed plate heating units, improving equipment utilization and system integration.

[0052] The design employs a serpentine arrangement of heated water pipes connected to an external temperature-controlled circulation system. Through precise temperature control, excellent thermal uniformity and stability, higher safety and reliability, and good system compatibility, it provides a more ideal and controllable thermal environment for the thermal curing of the colloid during the pressing process. It is particularly suitable for applications requiring high precision in temperature control, process stability, and safety, as well as those requiring long-term continuous operation or utilizing centralized heat sources.

[0053] Example 4

[0054] like Figures 1 to 2 As shown, this embodiment provides a pressure plate with heating function for attaching a diffuser plate of a surface light source. The difference from embodiment 1 is that in this embodiment, a heat insulation layer 4 is also provided between the fixing plate 1 and the heating plate 3.

[0055] A heat insulation layer 4 is also provided between the fixed plate 1 and the heating plate 3 to help block the transfer of heat to the fixed plate 1. Specifically, when the heating plate 3 generates heat through its heating device and heats the heat-conducting layer 2, the heat insulation layer 4 is located between the heating plate 3 and the fixed plate 1, forming a physical barrier. Its main purpose is to greatly hinder the conduction and radiation of heat from the heating plate 3 to the fixed plate 1.

[0056] By effectively blocking heat flow, the insulation layer 4 forces the heat generated by the heating plate 3 to be mainly (or almost entirely) transferred to the heat-conducting layer 2. This ensures that the heating energy is concentrated and directed to the target area that needs to be heated (i.e., the heat-conducting layer 2 and the object below / in contact with it).

[0057] In addition, the heat insulation layer 4 can prevent the fixing plate 1 from overheating due to direct exposure to the high temperature of the heating plate 3, thereby protecting the material of the fixing plate 1 itself and any components, coatings or contacts located above the fixing plate 1 from high temperature damage, and preventing the fixing plate 1 and the electronic components, plastic parts or other heat-sensitive materials connected above it from being damaged, deformed or malfunctioning due to high temperature.

[0058] Example 5

[0059] like Figure 1 , Figure 3 As shown, this embodiment provides a heating plate for attaching a diffuser plate of a surface light source. The difference from Embodiment 1 is that in this embodiment, the heating plate 3 is a rectangular frame structure.

[0060] Heating plate 3 is sleeved on the outside of fixed plate 1;

[0061] The rectangular frame structure of the heating plate 3 directly surrounds the outer edge (side) of the fixed plate 1. When heating, the heat is first applied directly to the side wall of the fixed plate 1. The heat is conducted from the edge of the fixed plate 1 to the central area. This heating method is particularly beneficial for compensating for heat loss in the edge area of ​​the fixed plate (the edge usually dissipates heat faster), thereby significantly improving the temperature uniformity of the entire working surface of the fixed plate 1 (especially the edge area). The heat is then transferred to the heat-conducting layer 2 through the fixed plate 1, forming a heating effect on the heat-conducting layer 2 and avoiding the "heat island effect" of the center being overheated and the edge being too cold.

[0062] In addition, the heating device is set in the frame structure. The heating device usually has a smaller heat capacity, which means that it heats up faster, responds more sensitively, requires less start-up energy, and takes less time to reach the target temperature, which helps to save energy.

[0063] The rectangular frame heating plate 3, which is fitted over the outside of the fixed plate 1, physically wraps around and protects the edge of the fixed plate 1.

[0064] Example 6

[0065] like Figure 1 , Figure 3 As shown, this embodiment provides a pressure plate with heating function for attaching a diffuser plate of a surface light source. The difference from Embodiments 1 and 5 is that in this embodiment, a heat insulation layer is provided between the fixing plate 1 and the heating plate 3.

[0066] A heat insulation layer is provided between the fixed plate 1 and the heating plate 3. During the heating process of the heating plate 3, the heat insulation layer effectively blocks the heat from being transferred to the fixed plate 1. The heat of the heating plate 3 is transferred to the heat conduction layer 2 from its bottom edge, and then diffuses to its central area through the edge of the heat conduction layer 2, thereby ensuring the temperature uniformity of the working surface of the heat conduction layer 2. During the pressing process, the heat conduction layer 2 can transfer heat to the contact area between the diffuser plate and the plastic frame, thereby improving the curing efficiency of the adhesive layer between the diffuser plate and the plastic frame.

[0067] Example 7

[0068] like Figures 1 to 2 As shown, this embodiment provides a pressure plate with heating function for attaching a surface light source diffuser plate. The difference from embodiment 1 is that in this embodiment, the top of the fixing plate 1 is provided with a plurality of first mounting holes, the first mounting holes are provided with suction cup connecting tubes 5, and the bottom of the suction cup connecting tubes 5 is provided with suction cups 6.

[0069] A second mounting hole 21 is provided on the heat-conducting layer 2 at the position corresponding to the first mounting hole. The second mounting hole 21 is used to accommodate the suction cup 6. The inner diameter of the second mounting hole 21 is larger than the outer diameter of the suction cup 6.

[0070] The suction cup connecting tube 5 is connected to an external adsorption device, and the suction cup connecting tube 5 is connected to the suction cup 6. The suction cup 6 is used for adsorption of the diffuser plate.

[0071] The suction cup 6 is embedded in the second mounting hole 21 of the heat-conducting layer 2 and is flush with (or slightly convex) with the surface of the heat-conducting layer 2, ensuring that the adsorption force is vertically and evenly transmitted to the diffuser plate. This enables the diffuser plate to be quickly and firmly adsorbed and fixed, avoiding displacement or vibration of the diffuser plate during processing, while also preventing local stress concentration that could lead to workpiece deformation or damage.

[0072] The inner diameter of the second mounting hole 21 is larger than the outer diameter of the suction cup 6, forming an annular gap. This gap can accommodate the asynchronous thermal expansion of the heat-conducting layer 2 and the suction cup 6 under heating conditions, preventing structural compression or cracking caused by the difference in the coefficient of thermal expansion of the materials; in addition, the air in the gap forms a natural heat insulation layer, which significantly reduces the heat transfer from the heat-conducting layer 2 to the suction cup 6 and the suction cup connecting pipe 5, avoiding high temperature from affecting the life of the adsorption equipment or causing safety hazards;

[0073] In addition, the suction cup 6 is embedded in the heat-conducting layer 2 to avoid hindering the heat transfer from the heat-conducting layer 2 to the diffuser plate, ensuring uniform temperature distribution on the heating surface and improving heating quality.

[0074] Example 8

[0075] like Figures 1 to 2 As shown, this embodiment provides a heating plate for attaching a diffuser plate of a surface light source. The difference from Embodiments 1, 5, and 6 is that in this embodiment, the heating plate 3 is disposed between the fixing plate 1 and the heat-conducting layer 2.

[0076] In addition, a third mounting hole 31 is provided on the heating plate 3 at the position corresponding to the first mounting hole, and the third mounting hole 31 is used for the suction cup connecting tube 5 to pass through.

[0077] Since the heat-conducting layer 2 is located below the fixed plate 1, and the heating plate 3 is located between the fixed plate 1 and the heat-conducting layer 2, and the fixed plate 1 and the heating plate 3 are also provided with a heat insulation layer 4, that is, the bottom of the fixed plate 1 is fixedly installed with a heat insulation layer 4, the bottom of the heat insulation layer 4 is fixedly installed with a heating plate 3, and the bottom of the heating plate 3 is fixedly installed with a heat-conducting layer 2.

[0078] This design places the rectangular heating plate directly between the fixed plate 1 and the heat-conducting layer 2, forming a clear, direct, and efficient downward heat conduction path of "heating plate → heat-conducting layer". This sandwich structure minimizes the heat transfer distance, reduces heat loss in intermediate stages, and ensures that the heat generated by the heating plate 3 can be quickly and directly transferred to the heat-conducting layer 2 below, thereby significantly improving the overall heating efficiency.

[0079] A rectangular heating plate 3 is used, the shape of which is usually adapted to the shape of the fixed plate 1 and the heat-conducting layer 2. This can effectively cover the target heating area and avoid problems such as local overheating or underheating. When the heating plate 3 heats up evenly, it can ensure that the heat-conducting layer 2 below it and even the object being heated ultimately receive heat over a large area with a uniform temperature distribution, thus improving the heating quality.

[0080] Placing the rectangular heating plate in the interlayer between the fixed plate 1 and the heat-conducting layer 2 is a highly integrated and compact layout. This design makes full use of the space below the fixed plate 1, avoiding additional complex support or heat transfer structures, resulting in a simple and compact heating module structure, which is conducive to the overall miniaturization and weight reduction of the equipment.

[0081] The heating plate 3 is positioned close to the bottom of the fixing plate 1, allowing the insulation layer 4 located between them to function most directly and effectively. The insulation layer 4 can closely adhere to the upper surface (heat source) of the heating plate 3 and the lower surface (object to be protected) of the fixing plate 1, maximally blocking heat from being transferred upward to the fixing plate 1 and forcing heat downward to be directed to the heat-conducting layer 2, thereby significantly improving the heat insulation effect and thermal energy utilization rate.

[0082] The rectangular heating plate has a regular structure, which also makes it easy to achieve a stable fit and installation with the fixing plate 1, the heat insulation layer 4, and the heat conduction layer 2; that is, the structure of each layer is easy to align, stack and fix (e.g., by bolts, clips or adhesives).

[0083] This invention provides a pressure plate with heating function for attaching diffuser plates of surface light sources, which can significantly shorten the pressure holding time and improve the assembly efficiency of surface light sources, thereby solving the problem of low production efficiency caused by slow curing of colloids in the prior art.

[0084] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

[0085] In the description of this utility model, it should be noted that the terms "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 product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0086] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0087] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A pressure plate with heating function for attaching a diffuser plate to a surface light source, characterized in that, It includes a fixing plate (1) and a heat-conducting layer (2) disposed below the fixing plate (1); The fixing plate (1) is also provided with a heating plate (3), which is used to heat the heat-conducting layer (2).

2. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 1, characterized in that, The heating plate (3) is equipped with a heating device.

3. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 2, characterized in that, The heating device is an electric heating wire or a heating water pipe.

4. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 3, characterized in that, The electric heating wire is spiral-shaped.

5. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 3, characterized in that, The heating water pipes are arranged in a serpentine pattern and are used to connect to an external temperature control circulation system.

6. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 1, characterized in that, A heat insulation layer (4) is also provided between the fixing plate (1) and the heating plate (3).

7. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 1, characterized in that, The heating plate (3) is located between the fixed plate (1) and the heat-conducting layer (2).

8. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 1, characterized in that, The heating plate (3) has a rectangular frame structure; The heating plate (3) is sleeved on the outside of the fixing plate (1).

9. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 1, characterized in that, The top of the fixing plate (1) is provided with a plurality of first mounting holes, and a suction cup connecting tube (5) is provided in the first mounting holes. A suction cup (6) is provided at the bottom of the suction cup connecting tube (5). The heat-conducting layer (2) has a second mounting hole (21) at the position corresponding to the first mounting hole, and the second mounting hole (21) is used to accommodate the suction cup (6).

10. A pressure plate with heating function for attaching a diffuser plate to a surface light source according to claim 9, characterized in that, The inner diameter of the second mounting hole (21) is larger than the outer diameter of the suction cup (6).

Images