Device for preventing UV-LED light source from generating condensation

Abstract

The utility model discloses a device for preventing UV-LED light sources from generating condensation, each group of UV-LED light sources (color cells) is correspondingly provided with a cooling water branch, each cooling water branch is provided with a fluid control valve, a controller can send an independent control signal to each fluid control valve, and when a specific UV-LED light source needs to be cooled, the corresponding cooling water branch is opened; the precise control not only ensures the cooling effect, but also avoids unnecessary resource waste, and when the UV-LED light source of a certain color group is not used, the fluid control valve can immediately close the corresponding cooling water branch, so that the condensation problem caused by continuous cooling is effectively prevented, the immediate response capability of the printing curing system is greatly improved, and the service life of the printing curing system is prolonged. And the risk of short circuit caused by condensation of the UV-LED light source is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing technical field more specifically, is related to a device for preventing UV-LED light source from producing condensation. BACKGROUND

[0002] In modern industrial production, the application of UV-LED curing equipment is increasingly widespread, especially in printing, painting, electronics and manicure industries.UV-LED curing equipment is mainly composed of multiple groups of UV-LED light sources, controllers and water cooling units.UV-LED light sources are responsible for emitting ultraviolet light, so that the ultraviolet light is irradiated onto the material to be cured, and the controller is used to adjust the power, light duration and timing switch parameters of the equipment to meet different production needs;The water cooling machine takes away the heat through circulating cooling water to ensure that the UV-LED lamp beads work stably in a high-temperature environment and avoid local overheating.

[0003] During the operation of the printing machine, it is often necessary to start only part of the UV-LED light sources, while the UV-LED light sources of other color groups do not need to be started. At this time, the operator needs to manually close the cooling water valve of the UV-LED light source of the unused color group. If this operation is not performed in time, the internal temperature of the unused UV-LED light source will form a large difference with the ambient temperature, and then condensation will be formed on the inner and outer surfaces of the UV-LED light source. These condensations will gradually penetrate into the pad area of the UV-LED light source through the small gaps inside the UV-LED light source. If the condensation is not dried in time, when the UV-LED light source is started again, a short circuit phenomenon may occur, which may damage the lamp panel. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a device for preventing UV-LED light source from producing condensation, to solve the problem that the cooling water valve corresponding to the UV-LED light source of the unused color group cannot be closed in time, resulting in condensation of the UV-LED light source.

[0005] The utility model technical scheme is as follows: a device for preventing UV-LED light source from producing condensation, comprising:

[0006] A controller;

[0007] A water cooling unit, the water cooling unit includes a pipeline assembly and a plurality of passage control assemblies installed on the pipeline assembly, the pipeline assembly has a cooling main waterway, each passage control assembly has a cooling water branch, and each cooling water branch is in communication with the cooling main waterway;

[0008] Each of the passage control assemblies comprises a first outer wire joint, a fluid control valve and a second outer wire joint, one end of the fluid control valve is connected with the first outer wire joint, the other end of the fluid control valve is connected with the second outer wire joint, the fluid control valve is electrically connected with the controller, and the fluid control valve controls the cooling water branch to switch between the closed state and the open state according to the control signal sent by the controller.

[0009] Further, the pipeline assembly comprises a plurality of manifold pipes arranged in series.

[0010] Further, the pipeline assembly is provided with an elbow at two ends, and one end of the elbow away from the pipeline assembly is connected with the passage control assembly.

[0011] Further, the passage control assembly further comprises a six-way pipe, a six-to-four inner wire joint, a connecting pipe and a water-cooled CPC joint group, one end of the six-way pipe is connected with the elbow, the other end of the six-way pipe is connected with the first outer wire joint through the six-to-four inner wire joint, one end of the connecting pipe is connected with the second outer wire joint and the fluid control valve, and the other end of the connecting pipe is connected with the water-cooled CPC joint group.

[0012] Further, the water-cooled CPC joint group comprises a first water-cooled CPC joint and a second water-cooled CPC joint, one end of the first water-cooled CPC joint is connected with the connecting pipe, the other end of the first water-cooled CPC joint is connected with the second water-cooled CPC joint, and the second water-cooled CPC joint is used for connecting a cooling water valve of a UV-LED light source.

[0013] Further, the fluid control valve comprises a valve body and a valve core, and an electromagnetic coil is arranged on the valve body, and movement of the valve core is controlled by energization and de-energization of the electromagnetic coil.

[0014] Further, the manifold pipe is a PPR pipe.

[0015] Further, the first outer wire joint is a four-way double outer wire joint.

[0016] Further, the second outer wire joint is a four-way outer wire pagoda joint.

[0017] Further, the six-way pipe is a PPR pipe.

[0018] The utility model has the advantages that:

[0019] (1) The device for preventing condensation of UV-LED light source provided by the utility model has cooling water branches corresponding to each group of UV-LED light sources (color groups), fluid control valves are arranged on the cooling water branches, the controller can send independent control signals to each fluid control valve, the corresponding cooling water branch is opened when a specific UV-LED light source needs to be cooled; the precise control not only ensures the cooling effect, but also avoids unnecessary resource waste, especially in a multi-color group UV-LED light source system, only when some color groups are activated, the cooling system will run, by precisely controlling the on-off state of each cooling water branch, the increase of energy consumption and equipment damage caused by long-term unnecessary cooling are avoided, thereby the service life of the printing curing system is prolonged.

[0020] (2) The device for preventing condensation of UV-LED light source provided by the utility model can immediately close the corresponding cooling water branch through the fluid control valve when the UV-LED light source of a certain color group is not used, effectively prevents the condensation problem caused by continuous cooling, greatly improves the instant response capability of the printing curing system, and reduces the risk of short circuit of the UV-LED light source caused by condensation.

[0021] (3) The device for preventing condensation of UV-LED light source provided by the utility model is independently controllable, has high flexibility and expandability, and can adapt to different application scenarios of different scales and requirements. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 It is the structure schematic view of the device in the embodiments of the utility model;

[0024] Figure 2 It is the A partial enlarged schematic view of Figure 1

[0025] Figure 3 ​The utility model discloses a fluid control valve's structure schematic view in the embodiment of the utility model.

[0026] In the drawing, 1, pipeline assembly;11, manifold;12, union;13, tee;2, passage control assembly;21, first male thread joint;22, fluid control valve;23, second male thread joint;24, six-way pipe;25, six-to-four female thread joint;26, connecting pipe;27, water-cooled CPC joint set;271, first water-cooled CPC joint;272, second water-cooled CPC joint;3, elbow. DETAILED DESCRIPTION

[0027] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The detailed description of the following examples and the drawings are used to exemplarily illustrate the principle of the utility model, but can not be used to limit the scope of the utility model, that is, the utility model is not limited to the described examples.

[0028] In order to better understand the utility model, the utility model is further described below in combination with the drawings and the embodiment:

[0029] In the traditional printing curing system, the water cooler will continuously provide cooling water for all UV-LED light sources, even if some UV-LED light sources are not used, therefore, the operator needs to manually close the cooling water valve of the unused color group UV-LED light source in time, if not closed in time, not only the water resource is wasted, but also the additional power is consumed to maintain the operation of the water pump and other related equipment. Moreover, if the UV-LED light source is in the closed state, and the cooling water continues to flow, the temperature around the light source will drop below the dew point, causing the moisture in the air to condense into water droplets attached to the UV-LED light source, that is, the condensation phenomenon occurs. Condensation is one of the common problems of UV-LED light source, which can cause electrical failure or reduce the performance of the light source, specifically, condensation occurs inside and outside the UV-LED light source, and the condensation gradually penetrates into the pad area of the UV-LED light source through the tiny gap inside the UV-LED light source, if the condensation cannot evaporate and dry in time, when the UV-LED light source is tried to start again, the short circuit phenomenon is easy to occur, and then the lamp panel is damaged.

[0030] Based on this, the utility model embodiment provides a device for preventing UV-LED light source from generating condensation, referring to Figures 1-2 As shown in the figure, the device comprises a controller and a water cooling unit, the water cooling unit comprises a pipeline assembly 1 and a plurality of passage control assemblies 2 installed on the pipeline assembly 1, the pipeline assembly 1 has a cooling main waterway, each passage control assembly 2 has a cooling water branch, and each cooling water branch is in communication with the cooling main waterway.

[0031] Among them, each passage control component 2 includes a first external thread connector 21, a fluid control valve 22 and a second external thread connector 23, one end of the fluid control valve 22 is connected to the first external thread connector 21, and the other end of the fluid control valve 22 is connected to the second external thread connector 23, the fluid control valve 22 is electrically connected to the controller, and the fluid control valve 22 controls the cooling water branch to switch between a closed state and an open state according to the control signal sent by the controller.

[0032] Specifically, each group of UV-LED light sources (color groups) is provided with a corresponding cooling water branch, and a fluid control valve 22 is provided on the cooling water branch. The controller can send an independent control signal to each fluid control valve 22. When a specific UV-LED light source needs to be cooled, the corresponding cooling water branch is opened. This precise control not only ensures the cooling effect, but also avoids unnecessary waste of resources. Especially in a multi-color group UV-LED light source system, its cooling system will only operate when certain color group UV-LED light sources are activated. By precisely controlling the switching state of each cooling water branch, increased energy consumption and equipment damage due to long-term unnecessary cooling are avoided, thereby improving the service life of the printing and curing system.

[0033] In this embodiment, when the UV-LED light source of a certain color group is not in use, the fluid control valve 22 can immediately close the corresponding cooling water branch, effectively preventing the condensation problem caused by continuous cooling, greatly improving the instant response capability of the printing and curing system, and reducing the risk of short circuit of the UV-LED light source due to condensation.

[0034] It is worth mentioning that the embodiment of the present invention provides a device for preventing condensation from UV-LED light sources, in which each path control component 2 is independently controllable, making the device highly flexible and scalable. If it is necessary to increase or decrease the number of UV-LED light sources, it is only necessary to increase or decrease the number of path control components 2 accordingly. This design enables the device to adapt to application scenarios of different scales and requirements. Secondly, the design of independent path control components 2 allows for the rapid location and isolation of the problem when the device fails. There is no need to disassemble and overhaul the entire water cooling unit on a large scale. Only the path control component 2 with the problem needs to be replaced or repaired, which greatly reduces maintenance costs and time costs.

[0035] See also Figure 1As shown, the pipeline assembly 1 includes a plurality of manifold pipes 11 arranged in series, and adjacent two manifold pipes 11 are connected by a union joint 12 or a tee joint 13. Specifically, by adopting the mode of a plurality of manifold pipes 11 arranged in series, the manifold pipe 11 and the passage control assembly 2 connected thereto can be quickly added or removed according to actual needs, and such flexibility enables the device to adapt to different scales and demand application scenarios. For example, when the number of UV-LED light sources needs to be increased, only the corresponding manifold pipe 11 and passage control assembly 2 need to be added.

[0036] In this embodiment, adjacent two manifold pipes 11 are connected by a union joint 12 or a tee joint 13. By adopting this connection mode, not only is it firm and reliable, but also it is convenient to install and disassemble. The union joint 12 and the tee joint 13 usually have the functions of quick connection and disconnection, so that the installation and disassembly process is simple and fast, which helps to improve the assembly efficiency and maintainability of the device. Secondly, by using the tee joint 13, the cooling water can be branched into the cooling water branch at the connection of the two manifold pipes 11.

[0037] Referring to Figure 2 As shown, the pipeline assembly 1 is provided with an elbow 3 at both ends, and the end of the elbow 3 away from the pipeline assembly 1 is connected with the passage control assembly 2.

[0038] Referring to Figure 2 As shown, the passage control assembly 2 further includes a six-way pipe 24, a six-to-four inner thread joint 25, a connecting pipe 26, and a water-cooled CPC joint group 27. One end of the six-way pipe 24 is connected with the elbow 3, and the other end of the six-way pipe 24 is connected with the first outer thread joint 21 through the six-to-four inner thread joint 25. One end of the connecting pipe 26 is connected with the fluid control valve 22 through the second outer thread joint 23, and the other end of the connecting pipe 26 is connected with the water-cooled CPC joint group 27.

[0039] Specifically, the six-way pipe 24, as part of the passage control assembly 2, provides sufficient inner diameter to ensure smooth flow of cooling water while maintaining a relatively compact design, suitable for installation in environments with limited space. The six-to-four inner thread joint 25 is a 6-to-ZG4 inner thread union joint 12, which allows connection between pipes of different specifications, increasing the flexibility of the passage control assembly 2, so that different installation requirements can be adapted without changing the overall structure.

[0040] Specifically, the water-cooled CPC joint group 27 includes a first water-cooled CPC joint 271 and a second water-cooled CPC joint 272. One end of the first water-cooled CPC joint 271 is connected with the connecting pipe 26, and the other end of the first water-cooled CPC joint 271 is connected with the second water-cooled CPC joint 272. The second water-cooled CPC joint 272 is used to connect the cooling water valve of the UV-LED light source.

[0041] In the embodiment, the fluid control valve 22 comprises a valve body and a valve core, and the valve body is provided with an electromagnetic coil, and the movement of the valve core is controlled by the energization and de-energization of the electromagnetic coil.

[0042] Specifically, the fluid control valve 22 is a key component in the passage control assembly 2, which controls the on-off of the cooling water branch according to the instruction of the controller. The working principle is as follows:

[0043] The controller is connected with the electromagnetic coil of the fluid control valve 22 through an electric wire to form an electric signal transmission channel. When it is necessary to switch the state of the cooling water branch, the controller sends a corresponding control signal to the fluid control valve 22, which is an electric pulse or a voltage change, for indicating the energization or de-energization of the electromagnetic coil. When the electromagnetic coil is energized, a corresponding magnetic field is generated, which attracts the valve core (a component made of ferromagnetic material), and the position of the valve core in the passage of the valve body is changed by the movement of the valve core, so as to control the opening or closing of the passage in the valve body for the cooling water to flow. It should be noted that the embodiment does not involve the improvement of the specific structure of the fluid control valve 22, and the existing fluid control valve 22 can be used, such as the fluid control valve 22 of Avid.

[0044] In the embodiment, the six-way pipe 24 and the manifold pipe 11 are PPR pipes (polypropylene random copolymer pipes). Specifically, the PPR pipe has excellent chemical corrosion resistance and can resist the corrosion of various chemical substances, including various additives and impurities that may be contained in the cooling water. The six-way pipe 24 and the manifold pipe 11 are PPR pipes, which ensure the long-term and safe transmission of the cooling water in the pipes. Secondly, the inner wall of the PPR pipe is smooth, which reduces the water flow resistance and improves the transmission efficiency of the cooling water, which helps to ensure that the cooling water can be quickly and uniformly distributed to each cooling water branch, thereby achieving effective cooling of the UV-LED light source.

[0045] In the embodiment, the first external thread joint 21 is a four-way double external thread joint, and the second external thread joint 23 is a four-way external thread pagoda joint.

[0046] It should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the product of the application is used, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application.

[0047] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the utility model.

[0048] The utility model discloses has been described exemplarily above in combination with the drawings, obviously, the implementation of the utility model patent is not limited by above-mentioned mode, as long as the various improvements of the method concept and technical scheme of the utility model patent are adopted, or the concept and technical scheme of the utility model patent are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A device for preventing condensation from a UV-LED light source, characterized in that: include: Controller; A water cooling unit, comprising a pipe assembly (1) and a plurality of passage control assemblies (2) mounted on the pipe assembly (1), wherein the pipe assembly (1) has a cooling main water channel, and each of the passage control assemblies (2) has a cooling water branch channel, and each of the cooling water branches is connected to the cooling main water channel; Each of the passage control components (2) includes a first external thread connector (21), a fluid control valve (22) and a second external thread connector (23); one end of the fluid control valve (22) is connected to the first external thread connector (21); the other end of the fluid control valve (22) is connected to the second external thread connector (23); the fluid control valve (22) is electrically connected to the controller; and the fluid control valve (22) controls the cooling water branch to switch between a closed state and an open state according to a control signal sent by the controller.

2. The device for preventing condensation from a UV-LED light source according to claim 1, wherein: The pipeline assembly (1) comprises a plurality of manifolds (11) arranged in series, and two adjacent manifolds (11) are connected via a flexible joint (12) or a three-way joint (13).

3. The device for preventing condensation of a UV-LED light source according to claim 1, wherein: Elbows (3) are provided at both ends of the pipeline assembly (1), and one end of the elbow (3) away from the pipeline assembly (1) is connected to the passage control assembly (2).

4. The device for preventing condensation of a UV-LED light source according to claim 3, wherein: The passage control component (2) further comprises a six-branch pipe (24), a six-branch to four-branch internal thread joint (25), a connecting pipe (26) and a water-cooled CPC joint group (27); one end of the six-branch pipe (24) is connected to the elbow (3); the other end of the six-branch pipe (24) is connected to the first external thread joint (21) via the six-branch to four-branch internal thread joint (25); one end of the connecting pipe (26) is connected to the fluid control valve (22) via the second external thread joint (23); and the other end of the connecting pipe (26) is connected to the water-cooled CPC joint group (27).

5. The device for preventing condensation of a UV-LED light source according to claim 4, wherein: The water-cooled CPC joint group (27) comprises a first water-cooled CPC joint (271) and a second water-cooled CPC joint (272), wherein one end of the first water-cooled CPC joint (271) is connected to the connecting pipe (26), and the other end of the first water-cooled CPC joint (271) is connected to the second water-cooled CPC joint (272), and the second water-cooled CPC joint (272) is used to connect to the cooling water valve of the UV-LED light source.

6. The device for preventing condensation of a UV-LED light source according to claim 1, wherein: The fluid control valve (22) comprises a valve body and a valve core. The valve body is provided with an electromagnetic coil, and the movement of the valve core is controlled by energizing and de-energizing the electromagnetic coil.

7. The device for preventing condensation of a UV-LED light source according to claim 2, wherein: The manifold (11) is a PPR pipe.

8. The device for preventing condensation of a UV-LED light source according to claim 1, wherein: The first external thread connector (21) is a four-part double external thread connector.

9. The device for preventing condensation of a UV-LED light source according to claim 1, wherein: The second external thread joint (23) is a four-point external thread pagoda joint.

10. The device for preventing condensation of a UV-LED light source according to claim 4, wherein: The six-branch pipe (24) is a PPR pipe.

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