An LED curing enclosure

Abstract

The utility model discloses a kind of LED curing box, belong to LED lamp manufacturing equipment field, including curing box, three-way valve, fan and pipeline, curing box includes bottom air flume, pressure relief port, air guide flume, baffle, first air hole, filter plate, box, air duct control panel, second air hole, air guide ring, air collection flume, box door, curing groove and pressure relief valve, by being equipped with bottom air flume and top air collection flume to form the temperature control flow passage from below to above, in combination with the pressure relief port of bottom air flume, air pressure can be controlled easily, the minimum air pressure required for drying can be reduced, the air flume in box and box door is bottom air flume air supply simultaneously also can be heat exchange temperature control in curing groove, to reduce the temperature difference of curing groove temperature control, realize uniform curing, and the air duct control panel between the air flume of replacing curing groove and air collection flume can also carry out air flume adjustment, bottom air flume and curing groove intercommunication place are equipped with the baffle with filter plate, air containing impurities in curing groove can be avoided, simultaneously, the air flume of equipment can be directly washed and open box door to carry out all-round cleaning or replacement, ensure clean.

Description

Technical Field

[0001] This utility model belongs to the field of LED lamp manufacturing equipment, and specifically relates to an LED curing box. Background Technology

[0002] An LED light is an electroluminescent semiconductor chip that is cured onto a substrate using silver or white glue. The chip is then connected to a circuit board using silver or gold wires, and sealed with epoxy resin to protect the internal core wires. Therefore, during LED manufacturing, to ensure the stable curing of the encapsulating adhesive, the LED light is often wrapped with encapsulating adhesive before being placed in a curing chamber for further curing. However, in current technology, traditional hot air curing chambers simply use air ducts for heating, resulting in poor temperature uniformity and significant temperature differences between areas near and far from the air vents. This is particularly problematic near the chamber door, leading to uneven curing. Furthermore, the air pressure at the vents can affect the uncured encapsulating adhesive, impacting product quality. Additionally, cleaning the air ducts in existing curing chambers is difficult, leading to the accumulation of impurities that can hinder curing. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To overcome the shortcomings of existing technologies, an LED curing box is proposed. This addresses the problem that traditional hot air curing boxes simply use air ducts to blow air for heating, resulting in poor temperature uniformity and significant temperature differences between areas near and far from the air vents. This is particularly problematic near the box door, where uneven curing can easily occur. Additionally, the air pressure at the vents can affect the uncured encapsulating adhesive, thus impacting product quality. Furthermore, cleaning the air ducts in existing curing boxes is difficult, leading to the accumulation of impurities that can hinder curing.

[0005] (II) Technical Solution

[0006] This utility model is achieved through the following technical solution: This utility model proposes an LED curing box, the structure of which includes a curing box, a three-way valve, a fan, and a pipeline;

[0007] The air inlet of the fan is connected to the curing box through two three-way valves connected in series. The three-way valve adjacent to the fan is also connected to an external air source through a pipe, and the three-way valve adjacent to the curing box is also connected to an exhaust port through a pipe.

[0008] The curing chamber includes a bottom air duct, a pressure relief port, an air guide duct, a partition, a first air hole, a filter plate, a chamber body, an air duct control plate, a second air hole, an air guide ring, an air collection duct, a chamber door, a curing chamber, and a pressure relief valve. A chamber door is hinged to one end of the chamber body. A partition is installed inside the chamber body, with one end of the partition fitting against the chamber door. A bottom air duct is formed between the bottom of the partition, the chamber body, and the chamber door. The bottom air duct passes through the chamber body and communicates with the pressure relief valve via the pressure relief port. A curing chamber is formed between the top of the partition, the chamber body, and the chamber door. A first air hole is provided through the partition, and the bottom air duct communicates with the curing chamber through the first air hole. A filter plate covering all the first air holes is installed inside the partition. A filter plate with one air hole has one end that passes through a partition and fits against the box door. A duct control plate is mounted on the top of the curing tank. A second air hole is provided through the duct control plate. An air collecting groove is formed between the top of the duct control plate and the box body. One end of the air collecting groove is connected to the curing tank through the second air hole, and the other end of the air collecting groove is connected to a three-way valve. An air guide ring is located above the curing tank and is connected to the air outlet of the fan through a pipe. Multiple air guide grooves are provided inside the box body and the box door. One end of the air guide groove is connected to the bottom of the air guide ring, and the other end of the air guide groove is connected to the bottom air groove. The air guide groove is also used for heat exchange on the side end face of the curing tank.

[0009] Furthermore, the top of each air guide trough is located inside the box, and the air guide trough connecting the box door is divided into a box body part and a box door part. The top of the air guide trough in the box door part and the air guide trough in the box body part are spliced ​​together.

[0010] Furthermore, the curing chamber also includes a sealing ring, which is used to seal the connection between the chamber body and the door.

[0011] Furthermore, the curing chamber also includes a heat-conducting plate, and the junction of the chamber body and the door with the curing tank is made of the heat-conducting plate.

[0012] Furthermore, the heat-conducting plate is made of a high thermal conductivity material.

[0013] Furthermore, the high thermal conductivity material is a copper alloy or an aluminum alloy.

[0014] Furthermore, the air guide channel is located adjacent to the curing tank.

[0015] Furthermore, both the three-way valve and the pressure relief valve are electrically controlled valves.

[0016] Furthermore, the air collection trough has an inverted conical structure.

[0017] (III) Beneficial Effects

[0018] One of the above technical solutions has the following advantages or beneficial effects:

[0019] 1. By forming a bottom-to-top temperature control channel through bottom air ducts and top air collection ducts, combined with the pressure relief port of the bottom air duct, the air pressure can be better controlled. For example, during hot drying, the high-temperature gas itself will rise, which can better reduce the minimum air pressure required for drying and avoid damage to the encapsulating adhesive due to excessive air pressure. In addition, the air guide ducts in the box and the door, combined with the air guide ring located above the curing tank, deliver air through the bottom air duct, which can make heat exchange and temperature control in the curing tank from top to bottom. At the same time, the air after heat exchange will decrease or increase a certain temperature before entering the curing tank from the bottom air duct. Through the combination of the temperature attenuation from top to bottom during heat exchange and the temperature attenuation from bottom to top at the air outlet, the temperature difference in the curing tank can be better reduced, achieving uniform curing in all directions and ensuring product quality.

[0020] 2. By installing a duct control plate with a second air hole at the connection between the top of the curing tank and the air collection duct, the equipment can adjust the curing hot drying duct by replacing the duct control plate, such as a direct flow ventilation duct or a staggered flow ventilation duct. At the same time, the equipment's duct control plate, curing tank and air collection duct can be easily cleaned.

[0021] 3. The bottom air duct and curing tank of the equipment are connected by a partition with a first air hole and a filter plate. This can prevent impurities in the air entering the curing tank. At the same time, the partition, bottom air duct and curing tank can all be cleaned by opening the box door. The filter plate can also be removed for cleaning or replacement by opening the box door. Combined with the air guide ring and air guide duct designed as a smooth structure from top to bottom, the air duct can be directly flushed. The debris after flushing can enter the bottom air duct for cleaning, ensuring the cleanliness of the air duct and further ensuring product quality. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional structural schematic diagram of the side view of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0026] Figure 4 This utility model Figure 2 A magnified structural diagram of B in the diagram;

[0027] In the diagram: Curing box - 1, Three-way valve - 2, Fan - 3, Pipe - 4, Bottom air duct - 101, Pressure relief port - 102, Air guide duct - 103, Partition plate - 104, First air hole - 105, Filter plate - 106, Box body - 107, Air duct control plate - 108, Second air hole - 109, Air guide ring - 110, Air collection duct - 111, Box door - 112, Curing tank - 113, Sealing ring - 114, Heat-conducting plate - 115, Pressure relief valve - 116. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0029] Example 1:

[0030] This utility model provides an LED curing box: its structure includes a curing box 1, a three-way valve 2, a fan 3, and a pipe 4;

[0031] The air inlet of the fan 3 is connected to the curing box 1 through two three-way valves 2 connected in series. The three-way valve 2 adjacent to the fan 3 is also connected to an external air source through a pipe 4. The three-way valve 2 adjacent to the curing box 1 is also connected to an exhaust port through a pipe 4.

[0032] The curing chamber 1 includes a bottom air duct 101, a pressure relief port 102, an air guide duct 103, a partition 104, a first air hole 105, a filter plate 106, a chamber body 107, an air duct control plate 108, a second air hole 109, an air guide ring 110, an air collection duct 111, a door 112, a curing tank 113, and a pressure relief valve 116. The door 112 is hinged to one end of the chamber body 107. A partition 104 is installed inside the chamber body 107, with one end of the partition 104 connected to the chamber... Door 112 is fitted together. A bottom air duct 101 is formed between the bottom of the partition 104 and the housing 107 and door 112. The bottom air duct 101 passes through the housing 107 and communicates with the pressure relief valve 116 via a pressure relief port 102. A curing groove 113 is formed between the top of the partition 104 and the housing 107 and door 112. A first air hole 105 is provided through the partition 104. The bottom air duct 101 communicates with the curing groove 113 via the first air hole 105. A filter plate 106 covering all the first air holes 105 is installed inside the partition 104. One end of the filter plate 106 passes through the partition 104 and is fitted to the box door 112. The air duct control plate 108 is installed on the top of part of the box body 107 of the curing tank 113. A second air hole 109 is provided through the air duct control plate 108. An air collecting groove 111 is formed between the top of the air duct control plate 108 and the box body 107. One end of the air collecting groove 111 is connected to the box body 107 through the second air hole 109. The curing tank 113 is connected to the other end of the air collection trough 111, which is connected to the three-way valve 2. The air guide ring 110 is located above the curing tank 113 and is connected to the air outlet of the fan 3 through the pipe 4. Multiple air guide troughs 103 are provided in the box body 107 and the box door 112. One end of the air guide trough 103 is connected to the bottom of the air guide ring 110, and the other end of the air guide trough 103 is connected to the bottom air trough 101. The air guide trough 103 is also used for heat exchange on the side end face of the curing tank 113.

[0033] The top of each air guide 103 is located inside the housing 107. The air guide 103 connecting the housing door 112 is divided into a housing 107 part and a housing door 112 part. The top of the air guide 103 in the housing door 112 part and the air guide 103 in the housing 107 part are spliced ​​together.

[0034] The air collection trough 111 has an inverted conical structure.

[0035] In use, the fan 3 draws in fresh air through the connected three-way valve 2, and then inputs it into the air guide ring 110 through the pipe 4. The air guide ring 110 can better and more evenly deliver the incoming air into the air guide trough 103, and then into the bottom air trough 101 below the curing tank 113 through the air guide trough 103. Finally, it enters the curing tank 113 from the bottom air trough 101 through the first air hole 105 of the partition 104. During this process, the filter plate 106 also filters the incoming air to prevent impurities from entering the curing tank 113 and affecting the curing process. When the temperature is stable and fresh air is not needed or the fresh air supply can be reduced, the circulating air can be controlled by adjusting the opening and closing size of the three-way valve 2 of the adjacent curing box 1 and the three-way valve 2 of the adjacent fan 3. This can reduce the control of external energy and reduce emissions, achieving energy saving and emission reduction. In addition, the bottom air duct 101 is also equipped with a pressure relief port 102, which allows the equipment to better control the air pressure. For example, during hot drying, combined with the fact that the high temperature gas itself will rise, the minimum air pressure required for drying can be reduced more effectively, avoiding damage to the encapsulating adhesive due to excessive air pressure.

[0036] Meanwhile, when the air guide duct 103 supplies air to the bottom air duct 101, it can control the temperature of the curing tank 113 through heat exchange. This allows for heat exchange and temperature control from top to bottom within the curing tank 113. The air after heat exchange will decrease or increase in temperature before entering the curing tank 113 from the bottom air duct 101. By combining the temperature attenuation from top to bottom through heat exchange with the temperature attenuation from bottom to top through the air outlet, the temperature difference within the curing tank 113 can be better reduced, achieving uniform curing in all directions and ensuring product quality.

[0037] The top of the curing tank 113 of the equipment is provided with an air duct control plate 108 with a second air hole 109 at the connection between it and the air collection duct 111. This allows the equipment to adjust the curing hot air duct by replacing the air duct control plate 108, such as a direct flow air duct that corresponds one-to-one with the first air hole 105 or a non-corresponding staggered flow air duct. At the same time, the air duct control plate 108, the curing tank 113 and the air collection duct 111 of the equipment can be easily cleaned.

[0038] Finally, the partition 104, bottom air duct 101, and curing tank 113 of the equipment can all be cleaned by opening the box door 112. The filter plate 106 can also be removed for cleaning or replacement by opening the box door 112. By designing the air guide ring 110 and air guide duct 103 as a smooth structure from top to bottom, the air duct can be directly flushed. The debris after flushing can enter the bottom air duct 101 for cleaning, ensuring the cleanliness of the air duct and further ensuring product quality.

[0039] Example 2:

[0040] Compared to the previous embodiments, the curing chamber 1 in this embodiment further includes a sealing ring 114, which is used to seal the connection between the chamber body 107 and the door 112 to ensure the airtightness of the curing chamber 1. The rest of the structure and effect remain unchanged.

[0041] Example 3:

[0042] Compared to the previous embodiments, the curing box 1 in this embodiment also includes a heat-conducting plate 115, and the junction of the box body 107 and the box door 112 with the curing tank 113 is made of the heat-conducting plate 115.

[0043] The heat-conducting plate 115 is made of a high thermal conductivity material.

[0044] The high thermal conductivity material is a copper alloy or an aluminum alloy.

[0045] When in use, the air guide duct 103 can better control the heat exchange temperature of the curing tank 113 when it passes through the curing tank 113, while the rest of the structure and effect remain unchanged.

[0046] Example 4:

[0047] Compared to the previous embodiments, the air guide duct 103 in this embodiment is located adjacent to the curing tank 113, which further enables the air guide duct 103 to better exchange heat and control the temperature of the curing tank 113, while the rest of the structure and effect remain unchanged.

[0048] Example 5:

[0049] Compared to the previous embodiments, the three-way valve 2 and the pressure relief valve 116 described in this embodiment are both electrically controlled valves, which enable the equipment's fresh air supply, circulation control and pressure relief control to be automated, making it easy to use, while the rest of the structure and effects remain unchanged.

[0050] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0051] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An LED curing box, the structure of which includes a curing box (1), a three-way valve (2), a fan (3), and a pipe (4); Its features are: The air inlet of the fan (3) is connected to the curing box (1) through two three-way valves (2) connected in series. The three-way valve (2) adjacent to the fan (3) is also connected to an external air source through a pipe (4). The three-way valve (2) adjacent to the curing box (1) is also connected to an exhaust port through a pipe (4). The curing chamber (1) includes a bottom air duct (101), a pressure relief port (102), an air guide duct (103), a partition (104), a first air hole (105), a filter plate (106), a chamber body (107), an air duct control plate (108), a second air hole (109), an air guide ring (110), an air collection duct (111), a chamber door (112), a curing tank (113), and a pressure relief valve (116). The chamber body (107) is hinged to one end with a chamber door (112). The chamber body (107) is internally fitted with a partition (104). One end of the partition (104) is fitted to the box door (112). A bottom air groove (101) is formed between the bottom of the partition (104), the box body (107), and the box door (112). The bottom air groove (101) passes through the box body (107) through the pressure relief port (102) and communicates with the pressure relief valve (116). A curing groove (113) is formed between the top of the partition (104), the box body (107), and the box door (112). A first air hole (105) is provided through the partition (104). The bottom air groove (101) is connected to the curing groove (113) through the first air hole (105). The partition (104) is equipped with a filter plate (106) covering all the first air holes (105). One end of the filter plate (106) passes through the partition (104) and fits against the box door (112). The air duct control plate (108) is installed on the top of the box body (107) of the curing tank (113). The air duct control plate (108) is provided with a second air hole (109). An air collecting groove (111) is formed between the top of the air duct control plate (108) and the box body (107). One end of the air collecting groove (111) passes through the second air hole (109). 9) The air collection groove (111) is connected to the curing tank (113), and the other end of the air collection groove (111) is connected to the three-way valve (2). The air guide ring (110) is located above the curing tank (113) and is connected to the air outlet of the fan (3) through the pipe (4). Multiple air guide grooves (103) are provided in the box body (107) and the box door (112). One end of the air guide groove (103) is connected to the bottom of the air guide ring (110), and the other end of the air guide groove (103) is connected to the bottom air groove (101). The air guide groove (103) is also used for heat exchange on the side end face of the curing tank (113).

2. The LED curing box according to claim 1, characterized in that: The top of each air guide trough (103) is located inside the box body (107). The air guide trough (103) connecting the box door (112) is divided into a box body (107) part and a box door (112) part. The top of the air guide trough (103) of the box door (112) part and the air guide trough (103) of the box body (107) part are spliced ​​together.

3. The LED curing box according to claim 2, characterized in that: The curing chamber (1) also includes a sealing ring (114), which is used to seal the connection between the chamber body (107) and the door (112).

4. An LED curing box according to claim 2, characterized in that: The curing chamber (1) also includes a heat-conducting plate (115), and the junction of the chamber body (107) and the door (112) with the curing tank (113) is made of the heat-conducting plate (115).

5. An LED curing box according to claim 4, characterized in that: The heat-conducting plate (115) is made of a high thermal conductivity material.

6. An LED curing box according to claim 1 or 4, characterized in that: The air guide trough (103) is located adjacent to the curing tank (113).

7. An LED curing box according to any one of claims 1 to 4, characterized in that: Both the three-way valve (2) and the pressure relief valve (116) are electrically controlled valves.

8. An LED curing box according to any one of claims 1 to 4, characterized in that: The air collection trough (111) has an inverted conical structure.

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