Reflow soldering furnace assembly and reflow soldering furnace

Abstract

The utility model relates to reflow soldering technical field, concretely relates to a reflow soldering furnace assembly and reflow soldering furnace, reflow soldering furnace assembly includes: multiple box parts of parallelly arranged, and the box part is used to provide temperature regulation gas to control each area temperature in reflow soldering furnace, wherein, multiple box parts at least two adjacent box parts among them are provided with circuit board bearing width adjustment mechanism, and the side of the box part of circuit board bearing width adjustment mechanism adjacent is provided with the notch on the side of facing circuit board bearing width adjustment mechanism, and the notch extends downward from the top end of the box part along the side of the box part, and reflow soldering furnace assembly still includes the first cover, and the first cover is covered on the notch. The first cover can be detached from the box part, and the circuit board bearing width adjustment mechanism located at the side of the box part is cleaned through the notch on the box part, and the design notch reduces the space occupation needed when the circuit board bearing width adjustment mechanism is cleaned, and improves the overall operation convenience of equipment.

Description

Technical Field

[0001] This utility model relates to the field of reflow oven technology, and in particular to a reflow oven assembly and a reflow oven. Background Technology

[0002] Reflow soldering is a core process in the electronics manufacturing industry, primarily used in surface mount technology (SMT). It achieves a permanent connection between electronic components and circuit boards by precisely controlling the temperature to melt solder paste. Common reflow ovens include preheating, holding, reflow, and cooling zones. During the circuit board soldering process, solder alloy powder and flux are mixed, applied to the circuit board, and the component leads are bonded. The solder is melted through staged heating, and after cooling, reliable solder joints are formed. While multiple zones in a reflow oven involve the use of solder paste, the flux used in conjunction with the solder paste may adhere to the drive mechanism of the PWM components during use, necessitating cleaning of the drive mechanism. Utility Model Content

[0003] The purpose of this utility model is to provide a reflow oven assembly and a reflow oven.

[0004] This utility model provides a reflow oven assembly, which includes: multiple housing sections, each housing section being used to provide temperature regulating gas to control the temperature of each area in the reflow oven; wherein, at least two adjacent housing sections are provided with a circuit board bearing width adjustment mechanism, and a notch is provided on the side of the housing section adjacent to the circuit board bearing width adjustment mechanism facing the circuit board bearing width adjustment mechanism, the notch extending downward from the top of the housing section along the side of the housing section; the reflow oven assembly also includes a first cover plate, the first cover plate covering the notch.

[0005] For example, the box portion having the notch is provided with a first positioning portion, and the first cover plate is provided with a second positioning portion, the first positioning portion and the second positioning portion cooperating with each other.

[0006] For example, the first positioning part includes at least one groove, and the second positioning part includes at least one insert plate, the insert plate being inserted into the groove; or,

[0007] The second positioning part includes at least one locking plate, which, together with the windproof member on the box body and the bottom wall of the first cover plate, forms a locking groove and is integrally engaged with the notch in the box body.

[0008] For example, the groove and the insert plate are respectively disposed below the notch in the housing portion and at the bottom end of the first cover plate.

[0009] For example, the first cover plate has a windbreak provided in at least one direction on its left side, right side, and underside; and / or,

[0010] The first cover plate includes multiple sub-cover plates, which are spliced ​​together to form the first cover plate.

[0011] For example, the notch is rectangular.

[0012] For example, the first cover plate is rectangular, and the length of the first cover plate accounts for 50%-80% of the side length of the box body portion; and / or,

[0013] The first cover plate occupies 60%-80% of the height of the box body in the height direction.

[0014] For example, the top of the first cover plate is provided with an edge extending toward the interior space of the housing portion, the edge being flush with the extension of the top of the housing portion.

[0015] For example, a mounting hole is provided at the middle of the edge.

[0016] For example, the circuit board bearing width adjustment mechanism includes a lead screw disposed adjacent to the first cover plate, and the notch is used to provide space for cleaning the lead screw.

[0017] In another aspect, this utility model provides a reflow oven, which includes the reflow oven assembly as described in any of the preceding claims.

[0018] Based on common knowledge in the field, the above preferred technical solutions can be freely combined to obtain various embodiments of this application.

[0019] The beneficial effects of this utility model are as follows: First, the circuit board bearing width adjustment mechanism can flexibly adjust the width of the circuit board to adapt to circuit boards of different sizes. This flexibility enables the reflow oven to process various types of circuit boards, improving the adaptability and production efficiency of the equipment. Second, the first cover plate allows the circuit board bearing width adjustment mechanism to be removed from the housing when cleaning or maintenance is required. The circuit board bearing width adjustment mechanism located on the side of the housing can be cleaned through the notch on the housing. The notch design reduces the space required for cleaning the circuit board bearing width adjustment mechanism, improving the overall ease of operation of the equipment. Third, the first cover plate covering the notch can prevent air and other fluids from entering the housing, protecting the internal components of the housing from interference, improving the safety of the equipment, and reducing the possibility of failure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the reflow oven of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the reflow oven assembly of this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of the installation of the first cover plate of the reflow oven assembly of this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the cleaning screw of the reflow oven assembly of this utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the overall box body of this utility model.

[0025] Figure 6 The second perspective view of the first cover plate of this utility model is a three-dimensional structural schematic diagram.

[0026] Figure 7 This is a schematic diagram of the first cover plate of this utility model from another direction.

[0027] Figure 8 This is a partial structural schematic diagram of the first cover plate of this utility model.

[0028] Explanation of reference numerals in the attached figures

[0029] Reflow Oven Assembly 1

[0030] Box body 10

[0031] Gap 101

[0032] First Positioning Unit 102

[0033] Top 103

[0034] Circuit board bearing width adjustment mechanism 11

[0035] Lead screw 111

[0036] Slide 112

[0037] First cover plate 20

[0038] Second positioning unit 201

[0039] Cardboard 202

[0040] Card slot 203

[0041] Windshield 30

[0042] Windshield 301

[0043] 40 along the edge

[0044] Mounting hole 401

[0045] Reflow oven 2 Detailed Implementation

[0046] The technical solution of this utility model will be further described in detail below through exemplary embodiments and in conjunction with the accompanying drawings. It should be understood that although terms indicating direction, such as "front," "rear," "upper," "lower," "left," and "right," are used in this utility model to describe various exemplary structural parts and elements, their use is merely for ease of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the exemplary embodiments described in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limiting. Where possible, the same or similar reference numerals used in this utility model refer to the same or similar components.

[0047] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a comprehensive understanding of exemplary embodiments of the present invention. However, it will be apparent that one or more exemplary embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0048] In this application, "multiple" means two, three, or more.

[0049] This embodiment provides a reflow oven assembly 1, such as... Figures 1-8 As shown, the reflow oven 2 includes multiple reflow oven assemblies 1 and circuit boards processed during the reflow soldering process. Each reflow oven assembly 1 includes multiple side-by-side housing sections 10, which provide temperature-regulating gas to control the temperature of each area within the reflow oven 2. At least two adjacent housing sections 10 are provided with a circuit board support width adjustment mechanism 11. A notch 101 is provided on the side of the housing section 10 adjacent to the circuit board support width adjustment mechanism 11 facing the mechanism. The notch 101 extends downwards from the top 103 of the housing section 10 along its side. The reflow oven assembly 1 also includes a first cover plate 20, which covers the notch 101.

[0050] In the embodiments of this application, the circuit board bearing width adjustment mechanism 11 can flexibly adjust the width of the circuit board to accommodate circuit boards of different sizes. This flexibility allows the reflow oven 2 to handle various types of circuit boards, improving the adaptability and production efficiency of the equipment. For example, in... Figure 2In the example shown, the circuit board width adjustment mechanism 11 may include a row of lead screws and a slide 112 that can move along the lead screws. In this example, the circuit board width adjustment mechanism 11 can adjust the distance between the slide and the two ends of the lead screw by means of the movement of the slide 112, so as to conveniently limit the width of the circuit board to be processed in the reflow oven 2. The first cover plate 20 allows the circuit board width adjustment mechanism 11 to be removed from the housing 10 when cleaning or maintenance is required, and the circuit board width adjustment mechanism 11 located on the side of the housing 10 can be cleaned through the notch 101 on the housing 10. Compared with the prior art, which requires the entire housing 10 to be removed to clean the circuit board width adjustment mechanism 11, the design of the notch 101 only requires the removal of the first cover plate 20 on the housing 10, which increases the operating space during cleaning and reduces the additional space required for cleaning the circuit board width adjustment mechanism 11, thus improving the overall ease of operation of the equipment. Finally, the first cover plate 20 covers the notch 101, which can prevent fluids such as air from entering the housing 10, protect the internal components of the housing 10 from interference, improve the safety of the equipment, reduce the possibility of failure, and improve the stability and reliability of the processing.

[0051] In one exemplary implementation, such as Figure 4 As shown, the housing portion 10 with notch 101 is provided with a first positioning part 102, and the first cover plate 20 is provided with a second positioning part 201. The first positioning part 102 and the second positioning part 201 cooperate with each other. The cooperation between the first positioning part 102 and the second positioning part 201 ensures that the first cover plate 20 is accurately positioned when installed on the housing portion 10. The cooperation of the two positioning parts reduces errors in the assembly process, ensures the sealing between the cover plate and the housing portion 10, and thus improves the reliability of the overall structure. In addition, the positioning part allows the first cover plate 20 to be firmly fixed on the notch 101, preventing the first cover plate 20 from loosening or falling off due to vibration or other external forces during operation, reducing the risk of failure. The first positioning part 102 and the second positioning part 201 make the disassembly and installation of the first cover plate 20 easier. Operators can perform maintenance and replacement quickly and accurately, saving time and labor costs and improving the maintainability of the equipment.

[0052] Furthermore, the first positioning part 102 includes at least one groove, and the second positioning part 201 includes at least one insert plate, which is inserted into the groove. The cooperation between the groove and the insert plate provides a stable positioning method. After the insert plate is inserted into the groove, it can effectively prevent the first cover plate 20 from shifting or shaking during use, thereby ensuring that the first cover plate 20 always remains in a fixed position. In the production environment, the equipment may be subjected to vibration or impact. The cooperation between the groove and the insert plate can effectively reduce loosening or damage caused by vibration, ensuring the long-term stable operation of the equipment.

[0053] Furthermore, the groove and the insert plate are respectively located below the notch 101 of the housing 10 and at the bottom end of the first cover plate 20. The insert plate at the bottom end of the first cover plate 20 ensures that the cover plate perfectly aligns with the notch 101 of the housing 10 during installation. This design improves positioning accuracy, ensuring that the cover plate completely covers the notch 101 when closed, avoiding poor sealing due to positional deviation.

[0054] In this embodiment, the housing 10 is provided with a groove and the first cover plate 20 is provided with an insert plate; this facilitates manufacturing and reduces production costs; alternatively, three grooves and three insert plates can be provided to improve the reliability of the installation between the housing 10 and the first cover plate 20 and prevent the grooves and insert plates from loosening due to vibration.

[0055] In one exemplary embodiment, the first cover plate 20 is provided with a wind baffle 30 in at least one direction on its left, right, and lower sides. The wind baffle 30 effectively blocks external airflow, reducing the impact of air convection on the internal temperature of the reflow oven 2, helping to maintain the stability of the oven temperature, ensuring uniform temperature distribution during the welding process, and thus improving welding quality. Simultaneously, the wind baffle 30 can improve the thermal efficiency of the reflow oven 2 and reduce energy consumption.

[0056] In this embodiment, wind deflectors 301 are provided on the left, right, and bottom sides of the first cover plate 20. The presence of wind deflectors 301 in all three directions effectively blocks external airflow, reducing the impact of air convection on the internal temperature of the reflow oven 2, ensuring the temperature stability of the oven chamber 10, promoting uniform temperature distribution during welding, thereby improving welding quality and reducing welding defects. In other embodiments, wind deflectors 30 can be provided in one of the three directions (left, right, and bottom) of the first cover plate 20, or in two of the three directions, as needed. Varying the number of wind deflectors 30 can reduce unnecessary structural complexity and lower manufacturing and maintenance costs. A reasonable arrangement of the number and position of wind deflectors 30 can simplify the overall structure while ensuring functionality.

[0057] In one exemplary implementation, such as Figure 8As shown, the second positioning part 201 includes at least one locking plate 202. The locking plate 202 is disposed on the outer side of the housing part 10, and the windproof member 30 is disposed on the inner side of the housing part 10. The locking plate 202, the windproof member 30 on the housing part 10, and the bottom wall of the first cover plate 20 form a locking groove 203, which is integrally engaged with the wall surface of the housing part 10 with the notch 101. In this embodiment, the locking plate 202 is disposed at the center of the bottom of the first cover plate 20 on the outer side of the housing part 10, and the windproof member 30 is disposed on the bottom end of the first cover plate 20 on the inner side of the housing part 10. The windproof member 30 located inside the bottom end, the locking plate located outside the bottom end, and the bottom wall of the first cover plate 20 together form a locking groove 203, which is integrally engaged with the wall surface of the housing part 10 with the notch 101. In other embodiments, multiple card plates 202 may be provided, which are evenly spaced along the bottom end of the first cover plate 20.

[0058] In one exemplary embodiment, the first cover plate 20 includes multiple sub-cover plates, which are spliced ​​together to form the first cover plate 20. The splicing of multiple sub-cover plates allows for more flexible assembly of the first cover plate 20. Depending on actual needs, different numbers and sizes of sub-cover plates can be selected and combined to adapt to reflow ovens 2 of different specifications, enabling the equipment to better meet diverse production requirements. Furthermore, the sub-cover plates facilitate maintenance and replacement. If a sub-cover plate is damaged or requires cleaning, the operator only needs to disassemble that sub-cover plate without replacing the entire first cover plate 20, reducing maintenance costs and improving equipment availability. The sub-cover plates can be spliced ​​together vertically, horizontally, or, depending on actual usage needs, along a fixed angle of inclination to form the first cover plate 20.

[0059] In one exemplary implementation, such as Figure 5 As shown, the notch 101 is rectangular. The rectangular notch 101 has a simple shape, making it easy to process and manufacture during production. This standardized shape reduces production costs and time, improving production efficiency. Furthermore, the rectangular notch 101 makes it easier to align and install mating components (such as inserts or other positioning parts), contributing to improved overall assembly accuracy. In addition, the rectangular notch 101 facilitates cleaning and maintenance, allowing operators easier access to the area near the circuit board bearing width adjustment mechanism 11 on the side of the notch 101 for necessary cleaning and maintenance, thereby extending the equipment's lifespan.

[0060] In one exemplary implementation, such as Figure 5As shown, the first cover plate 20 is rectangular, and its length accounts for 50%-80% of the side length of the housing 10. Within this length range, the first cover plate 20 can effectively cover the critical areas of the housing 10, ensuring that the internal components are adequately protected. Furthermore, the design range of the first cover plate 20 makes it easier for operators to maintain and clean the circuit board bearing width adjustment mechanism 11, ensuring that operators can easily access all parts of the circuit board bearing width adjustment mechanism 11 for necessary inspections and maintenance, thus improving work efficiency.

[0061] In this embodiment, such as Figure 5 As shown, the length of the first cover plate 20 is set to account for 70% of the side length of the housing 10; this ensures the cleaning of the circuit board bearing width adjustment mechanism 11; in other embodiments, the length of the first cover plate 20 can be set to account for 50% or 80% of the side length of the housing 10, so that the first cover plate 20 can be adjusted according to different production needs to meet different working conditions.

[0062] In one exemplary embodiment, the first cover plate 20 occupies 60%-80% of the height of the housing portion 10 in the height direction. In this embodiment, the height of the first cover plate 20 is set to occupy 70% of the side height of the housing portion 10, ensuring the cleaning of the circuit board bearing width adjustment mechanism 11. In other embodiments, the height of the first cover plate 20 can be set to occupy 50% or 80% of the side height of the housing portion 10, allowing the first cover plate 20 to be adjusted according to different production needs to meet different working conditions. An appropriate height helps maintain a stable temperature inside the reflow oven 2, reduces heat loss, improves thermal efficiency, thereby reducing energy consumption and improving welding quality. In addition, a reasonable proportion of the height and length of the first cover plate 20 can enhance the overall structural stability of the housing portion 10.

[0063] In one exemplary embodiment, the top of the first cover plate 20 is provided with an edge 40 extending toward the interior space of the housing portion 10, and the edge 40 is flush with the extension of the top of the housing portion 10. The edge 40 can effectively form a tight contact with the extension of the top of the housing portion 10, improving the sealing performance between the cover plate and the housing portion 10; it helps prevent external contaminants, dust or foreign objects from entering the interior of the housing, ensuring a clean welding environment, thereby improving welding quality. In addition, the edge 40 also helps to maintain a stable temperature inside the reflow oven 2, ensuring uniform heat distribution inside the housing portion 10 by reducing heat loss, thereby improving thermal efficiency and reducing energy consumption.

[0064] Furthermore, a mounting hole 401 is provided at the center of edge 40. For example... Figure 6 , Figure 7 As shown, the mounting hole 401 allows the first cover plate 20 to be easily fixed or disassembled with other components on the housing 10. Operators can quickly and accurately install and disassemble the cover plate using the mounting hole 401, reducing operating time and labor costs, and improving work efficiency. Furthermore, the mounting hole 401 provides additional fixing points, strengthening the connection between the first cover plate 20 and other components of the housing 10, enhancing the overall structural stability, and effectively preventing the cover plate from loosening due to vibration or external force under high temperatures or other operating conditions, ensuring the normal operation of the equipment.

[0065] In one exemplary embodiment, the circuit board bearing width adjustment mechanism 11 includes a lead screw 111 disposed adjacent to the first cover plate 20, and a notch 101 providing space for cleaning the lead screw 111. The notch 101 provides ample space for cleaning the lead screw 111, allowing operators to easily perform cleaning. Cleaning removes dirt and flux adhering to the lead screw 111, making it easier for operators to access the lead screw 111 for adjustment and maintenance, ensuring its normal operation and extending its service life. Furthermore, as a component of the circuit board bearing width adjustment mechanism 11, the proper positioning of the lead screw 111 improves adjustment accuracy. By installing the lead screw 111 near the first cover plate 20, the width adjustment of the circuit board can be made more accurate, meeting the needs of circuit boards of different sizes.

[0066] In another aspect, this utility model also provides a reflow oven 2, such as Figures 1-4 As shown, the reflow oven 2 includes the reflow oven assembly 1 as described above. The reflow oven 2 typically includes a heating zone, a conveying zone, and a cooling zone; the heating zone is used to heat the circuit board and is usually divided into multiple temperature zones to achieve precise temperature control. The conveying zone is used to transport the circuit board from the inlet to the outlet, ensuring the continuity of the soldering process. The cooling zone is used to rapidly reduce the temperature of the circuit board, ensuring the solidification of the solder joints.

[0067] The reflow oven 2 includes multiple reflow oven assemblies 1 and circuit boards processed during the reflow soldering process. Each reflow oven assembly 1 includes multiple side-by-side housing sections 10, which provide temperature-regulating gas to control the temperature of each zone within the reflow oven 2. At least two adjacent housing sections 10 are provided with a circuit board support width adjustment mechanism 11. A notch 101 is provided on the side of the housing section 10 adjacent to the circuit board support width adjustment mechanism 11 facing the mechanism. The notch 101 extends downwards from the top 103 of the housing section 10 along its side. The reflow oven assembly 1 also includes a first cover plate 20, which covers the notch 101. The circuit board support width adjustment mechanism 11 allows the reflow oven 2 to process circuit boards of various sizes, meeting diverse production needs. The notch 101 in the reflow oven assembly 1 also facilitates the maintenance and cleaning of the circuit board support width adjustment mechanism 11. Operators can easily access key components such as the lead screw 111 for cleaning and maintenance, extending the equipment's lifespan and reducing downtime. The inclusion of a windbreak 30 improves overall sealing performance and structural stability, enabling the reflow oven 2 to achieve a highly efficient welding process with lower energy consumption, thus reducing production costs.

[0068] Although the present invention has been described foregoing in conjunction with exemplary embodiments, various alternatives, modifications, variations, improvements, and / or substantially equivalents, whether known or currently or soon to be foreseen, will likely be apparent to those skilled in the art. Furthermore, the technical effects and / or technical problems described in the present invention are exemplary and not limiting; therefore, the technical content of the present invention may be used to solve other technical problems and have other technical effects. Accordingly, the exemplary embodiments of the present invention described above are intended to be illustrative and not restrictive. Various changes may be made without departing from the spirit or scope of the present invention. The solutions described in the various exemplary embodiments can be freely combined without causing structural or principled conflicts. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A reflow oven assembly, characterized in that, The reflow oven assembly includes: Multiple enclosure sections, the enclosure sections being used to provide temperature-regulating gas to control the temperature of each zone in the reflow oven; Among the plurality of housing sections, a circuit board bearing width adjustment mechanism is provided between at least two adjacent housing sections. A notch is provided on the side of the housing section adjacent to the circuit board bearing width adjustment mechanism, and the notch extends downward from the top of the housing section along the side of the housing section. The reflow oven assembly also includes a first cover plate, which covers the notch.

2. The reflow oven assembly according to claim 1, characterized in that, The box body with the notch is provided with a first positioning part, and the first cover plate is provided with a second positioning part, and the first positioning part and the second positioning part cooperate with each other.

3. The reflow oven assembly according to claim 2, characterized in that, The first positioning part includes at least one groove, and the second positioning part includes at least one insert plate, the insert plate being inserted into the groove; or, The second positioning part includes at least one locking plate, which, together with the windproof member on the box part and the bottom wall of the first cover plate, forms a locking groove and is integrally engaged with the wall surface of the box part having a notch.

4. The reflow oven assembly according to claim 3, characterized in that, The groove and the insert plate are respectively located below the notch in the housing and at the bottom end of the first cover plate.

5. The reflow oven assembly according to any one of claims 1-4, characterized in that, The first cover plate has a windbreak provided in at least one direction on its left side, right side, and underside; and / or, The first cover plate includes multiple sub-cover plates, which are spliced ​​together to form the first cover plate.

6. The reflow oven assembly according to any one of claims 1-4, characterized in that, The gap is rectangular.

7. The reflow oven assembly according to any one of claims 1-4, characterized in that, The first cover plate is rectangular, and its length accounts for 50%-80% of the side length of the box body; and / or, The first cover plate occupies 60%-80% of the height of the box body in the height direction.

8. The reflow oven assembly according to any one of claims 1-4, characterized in that, The top of the first cover plate is provided with an edge extending toward the interior space of the housing portion, and the edge is flush with the extension of the top of the housing portion.

9. The reflow oven assembly according to claim 8, characterized in that, A mounting hole is provided in the middle of the edge.

10. The reflow oven assembly according to any one of claims 1-4, characterized in that, The circuit board bearing width adjustment mechanism includes a lead screw, which is disposed adjacent to the first cover plate, and the notch is used to provide space for cleaning the lead screw.

11. A reflow oven, characterized in that, The reflow oven includes the reflow oven assembly as described in any one of claims 1 to 10.

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