Cooling device and reflow soldering equipment

Abstract

The utility model discloses a cooling device and reflow soldering equipment, and the cooling device comprises a plurality of air inlet valve assemblies which are installed on an air inlet heating part and are used for providing target gas into the air inlet heating part; the air outlet valve assemblies are installed on the air outlet heating component and used for allowing air in the air outlet heating component to flow out; the air draft filter box is mounted on the furnace body and is used for filtering and outputting air in the air outlet heating component; the first air pipe is connected between the air outlet valve assembly and the air draft filter box, and / or is connected between the adjacent air inlet valve assemblies, and / or is connected between the adjacent air outlet valve assemblies; the controller is connected with the air inlet valve assemblies and the air outlet valve assemblies and used for controlling the at least one air inlet valve assembly and the at least one air outlet valve assembly to be opened or closed at the same time. According to the cooling device provided by the utility model, the cooling waiting time and the labor cost can be effectively saved, the product transferring time is shortened, the production efficiency is improved, and the intelligent degree is improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic production, in particular to a cooling device and reflow soldering equipment. Background Art

[0002] In the production of reflow soldering equipment, different products require different production formulas and processes, and the required soldering temperatures also vary greatly. If the temperature required for the product produced by the transfer line is higher than that of the previous product, the process of increasing the temperature is relatively simple and less time-consuming. If the temperature required for the product produced by the transfer line is low and the difference is large, or the equipment needs to be maintained, or the equipment needs to be cooled to room temperature, because the materials used in the furnace body will absorb and store heat, the cooling speed will be very slow and it will take a lot of time.

[0003] If the furnace is opened to dissipate heat, the exhaust gas in the furnace will overflow and pollute the surrounding air; if nitrogen reflow equipment is used for production, opening the furnace will cause nitrogen to overflow into the surrounding environment, reducing the oxygen concentration in the surrounding area, which is not conducive to the physical and mental health of the staff; and the oxygen concentration in the furnace will exceed the set value range, requiring re-nitrogen filling and debugging, which consumes more time and manpower and material resources.

[0004] Therefore, how to improve the cooling efficiency of the reflow soldering equipment is a technical problem that technicians in this field currently need to solve. Utility Model Content

[0005] The utility model aims to provide a cooling device and reflow soldering equipment, which can effectively improve the cooling efficiency of the reflow soldering equipment, save manpower, and reduce the cooling waiting time.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cooling device is used in a furnace body of a reflow soldering device, wherein a plurality of heating components are arranged in the furnace body, and the interior of the heating components is connected to the furnace chamber of the furnace body; comprising:

[0008] A plurality of air inlet valve assemblies, mounted on the air inlet heating component, for providing target gas to the interior of the air inlet heating component;

[0009] A plurality of air outlet valve assemblies, installed on the air outlet heating component, for allowing the gas in the air outlet heating component to flow out;

[0010] An exhaust filter box, installed on the furnace body, for filtering and outputting the gas in the air outlet heating component;

[0011] A first air duct is connected between the air outlet valve assembly and the air exhaust filter box, and / or is connected between adjacent air inlet valve assemblies, and / or is connected between adjacent air outlet valve assemblies;

[0012] A controller is connected to the air inlet valve assembly and the air outlet valve assembly, and is used to control at least one of the air inlet valve assembly and at least one of the air outlet valve assembly to be opened or closed simultaneously.

[0013] Preferably, there are multiple air inlet valve assemblies, each of which is connected to the air inlet heating component in a one-to-one correspondence, and the air inlet heating component is located in the middle of the furnace body.

[0014] Preferably, the air inlet valve assembly includes a plurality of groups, each group of the air inlet valve assembly includes at least two air inlet valve assemblies, and the air inlet valve assemblies in each group of the air inlet valve assemblies are connected through the first air duct.

[0015] Preferably, there are multiple air outlet valve assemblies, each of which is connected to the air outlet heating component in a one-to-one correspondence, and the air outlet heating component is located at the edge of the furnace body.

[0016] Preferably, the air outlet valve assembly includes a first air outlet valve assembly and a second air outlet valve assembly; the air outlet heating component includes a first air outlet heating component and a second air outlet heating component, the first air outlet heating component is located on the first side of the furnace body, the second air outlet heating component is located on the second side of the furnace body, the temperature of the first side of the furnace body is greater than the temperature of the second side of the furnace body; the number of the first air outlet valve assemblies and the first air outlet heating components is the same and corresponds one to one, the number of the second air outlet valve assemblies and the second air outlet heating components is the same and corresponds one to one, and the number of the first air outlet valve assemblies is less than the number of the second air outlet valve assemblies.

[0017] Preferably, the air inlet valve assembly and / or the air outlet valve assembly includes a valve body, a first seal, a second air duct, a second seal and a telescopic component, and the controller is connected to the telescopic component; one end of the second air duct is connected to the valve body, and the other end is connected to the interior of the heating component; the first seal is installed on the valve body, the telescopic component is installed on the first seal, and the movable end of the telescopic component is connected to the second seal to drive the second seal to seal the second air duct or open the second air duct; at least one side of the valve body is also provided with an air duct interface for communicating with the first air duct.

[0018] Preferably, the air duct interface is detachably connected to the first air duct via a locking clamp.

[0019] Preferably, the air intake valve assembly further includes an air intake pipe, and the first sealing member of the air intake valve assembly is further provided with an air intake interface, and the air intake interface is communicated with the air intake pipe.

[0020] Preferably, the telescopic component is a cylinder, and the controller is connected to both the telescopic component and the air inlet interface; the controller is used to control the telescopic component and the air inlet interface of at least one of the air inlet valve assemblies, and the telescopic component of at least one of the air outlet valve assemblies to open simultaneously.

[0021] The utility model also provides a reflow soldering device, comprising a furnace body, a heating component and any one of the cooling devices described above.

[0022] The cooling device provided by the utility model is applied to the furnace body of the reflow soldering equipment, wherein a plurality of heating components are arranged in the furnace body, and the interior of the heating components is connected to the furnace chamber of the furnace body; the cooling device comprises: a plurality of air inlet valve assemblies, which are installed on the air inlet heating components and are used to provide the target gas to the interior of the air inlet heating components; a plurality of air outlet valve assemblies, which are installed on the air outlet heating components and are used to allow the gas in the air outlet heating components to flow out; an exhaust filter box, which is installed on the furnace body and is used to filter and output the gas in the air outlet heating components; a first air duct, which is connected between the air outlet valve assembly and the exhaust filter box, and / or is connected between adjacent air inlet valve assemblies, and / or is connected between adjacent air outlet valve assemblies; a controller, which is connected to the air inlet valve assembly and the air outlet valve assembly, and is used to control at least one of the air inlet valve assembly and at least one of the air outlet valve assembly to be opened or closed at the same time. The cooling device provided by the utility model, through the arrangement of the air inlet valve assembly and the air outlet valve assembly, provides the target gas to the interior of the air inlet heating component to dissipate the heat inside the air inlet heating component, and then the gas with higher temperature inside the air inlet heating component will flow into the furnace of the furnace body, and the gas in the furnace of the furnace body will flow into the interior of the air outlet heating component, and then flow out of the furnace body after passing through the air outlet valve assembly, the first air duct and the exhaust filter box, and the purpose of quickly cooling the furnace body is achieved by utilizing the gas flow, which effectively saves the waiting time for cooling and labor costs, shortens the product transfer time, and improves production efficiency; at the same time, through the separate control of the air inlet valve assembly and the air outlet valve assembly by the controller, the air inlet valve assembly or the air outlet valve assembly corresponding to the air inlet heating component and the air outlet heating component can be opened or closed, so as to achieve rapid cooling of a single heating component or multiple heating components, and the degree of intelligence is improved.

[0023] The reflow soldering equipment provided by the utility model is provided with the above-mentioned cooling device. Since the cooling device has the above-mentioned technical effects, the reflow soldering equipment provided with the cooling device should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the assembly structure of the cooling device and the heating component provided by the utility model;

[0026] Figure 2 for Figure 1 A cross-sectional view of an air inlet valve assembly in the cooling device shown;

[0027] Figure 3 for Figure 1 A three-dimensional view of an air inlet valve assembly in the cooling device shown;

[0028] Figure 4 for Figure 1 A three-dimensional view of an air outlet valve assembly in the cooling device shown;

[0029] Figure 5 A schematic diagram of the gas flow direction of the cooling device provided by the utility model when applied to a reflow soldering device;

[0030] Figure 6 A schematic diagram of the working principle of the cooling device provided by the utility model when applied to a reflow soldering device;

[0031] Among them: a heating component 1; an air inlet valve assembly 2; an air outlet valve assembly 3; a first air duct 4; an exhaust filter box 5; a valve body 6; a first sealing member 7; a second air duct 8; a second sealing member 9; a telescopic component 10; an air duct interface 11; a locking clamp 12; and an air inlet interface 13. DETAILED DESCRIPTION

[0032] The core of the utility model is to provide a cooling device and reflow soldering equipment, which can quickly cool down specific heating temperature components and improve the degree of intelligence.

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Please refer to Figures 1 to 6 , Figure 1A schematic diagram of the assembly structure of the cooling device and the heating component provided by the utility model; Figure 2 for Figure 1 A cross-sectional view of an air inlet valve assembly in the cooling device shown; Figure 3 for Figure 1 A three-dimensional view of an air inlet valve assembly in the cooling device shown; Figure 4 for Figure 1 A three-dimensional view of an air outlet valve assembly in the cooling device shown; Figure 5 A schematic diagram of the working principle of the cooling device provided by the utility model when applied to a reflow soldering device; Figure 6 The present invention is a schematic diagram of the working principle of the cooling device provided by the utility model when applied to a reflow soldering device.

[0035] In this embodiment, if Figure 1 As shown, the cooling device is applied to the furnace body of the reflow soldering equipment, and a plurality of heating components 1 are arranged in the furnace body, and the interior of the heating components 1 is connected to the furnace chamber of the furnace body; it includes:

[0036] A plurality of air inlet valve assemblies 2, mounted on the air inlet heating component, for providing target gas to the interior of the air inlet heating component;

[0037] A plurality of air outlet valve assemblies 3, mounted on the air outlet heating component, for allowing the gas in the air outlet heating component to flow out;

[0038] The exhaust filter box 5 is installed on the furnace body and is used to filter and output the gas in the air heating component;

[0039] The first air duct 4 is connected between the air outlet valve assembly 3 and the exhaust filter box 5, and / or connected between adjacent air inlet valve assemblies 2, and / or connected between adjacent air outlet valve assemblies 3;

[0040] The controller is connected to the air inlet valve assembly 2 and the air outlet valve assembly 3, and is used to control at least one air inlet valve assembly 2 and at least one air outlet valve assembly 3 to be opened or closed at the same time.

[0041] The cooling device is preferably used in SMT surface assembly technology reflow soldering equipment for rapid cooling of the heating temperature zone of the reflow soldering furnace. Specifically, there are multiple air inlet valve assemblies 2, and at least one air outlet valve assembly 3, and multiple air outlet valve assemblies may be provided; each heating component 1 corresponds to a different heating temperature zone in the furnace body, and each heating component 1 can be divided into an air inlet heating component and an air outlet heating component according to its position in the furnace body. In order to facilitate the flow of gas, the heating component 1 located in the middle of the furnace body can be defined as an air inlet heating component, and the heating component 1 located on the side of the furnace body can be defined as an air outlet heating component. In other words, Figure 5As shown, the gas flows into the furnace of the furnace body through the air inlet heating component, and then flows out of the furnace body after passing through the air outlet heating component. Due to the flow of gas, a heat dissipation effect is generated, thereby playing a role in cooling each heating component 1.

[0042] Furthermore, the exhaust filter box 5 can filter the gas in the furnace body to reduce pollution to the environment; the first air duct 4 allows gas to flow to ensure that the gas can flow out of the furnace body smoothly; or the gas flows between the air inlet valve components 2, or the gas flows between the air outlet valve components 3, thereby ensuring the air intake efficiency and the air outlet efficiency. The controller is connected to each air inlet valve component 2 and each air outlet valve component 3, and the controller can control each air inlet valve component 2 and each air outlet valve component 3 separately, so that the individual heating components 1 that need to be cooled can be cooled, thereby improving the scope of application.

[0043] The cooling device provided by the utility model, through the arrangement of the air inlet valve assembly 2 and the air outlet valve assembly 3, provides the target gas to the interior of the air inlet heating component to dissipate the heat inside the air inlet heating component, and then the gas with higher temperature inside the air inlet heating component will flow into the furnace of the furnace body, and the gas in the furnace of the furnace body will flow into the interior of the air outlet heating component, and then flow out of the furnace body after passing through the air outlet valve assembly 3, the first air duct 4 and the exhaust filter box 5, and utilize the gas flow to achieve the purpose of rapid cooling of the furnace body, effectively saving the waiting time and labor costs for cooling, shortening the product transfer time, and improving production efficiency; at the same time, through the controller to separately control the air inlet valve assembly 2 and the air outlet valve assembly 3, the air inlet valve assembly 2 or the air outlet valve assembly 3 corresponding to the air inlet heating component and the air outlet heating component can be opened or closed, so as to achieve rapid cooling of a single heating component 1 or multiple heating components 1, and the degree of intelligence is improved.

[0044] In some embodiments, there are multiple air inlet valve assemblies 2, each of which is connected to an air inlet heating component in a one-to-one correspondence, and the air inlet heating component is located in the middle of the furnace body. Specifically, after the number of air inlet heating components is determined, the corresponding air inlet valve assemblies 2 can be installed. When the temperature of a certain heating temperature zone in the furnace body needs to be cooled, the air inlet valve assembly 2 on the corresponding air inlet heating component can be opened. At the same time, in order to ensure that the gas in the furnace body flows out smoothly, at least one air outlet valve assembly 3 should be opened when the air inlet valve assembly 2 is opened.

[0045] In some embodiments, the air inlet valve assembly 2 includes multiple groups, each group of air inlet valve assemblies 2 includes at least two air inlet valve assemblies 2, and the air inlet valve assemblies 2 in each group of air inlet valve assemblies 2 are connected through the first air duct 4. Specifically, the positions of the air inlet valve assemblies 2 in each group of air inlet valve assemblies 2 are close to each other. For example, for several adjacent air inlet heating components in the furnace body, the air inlet valve assemblies 2 thereon can be set as a group of air inlet valve assemblies 2, and the air inlet valve assemblies 2 in the same group can be connected through the first air duct 4. This is set so that after several air inlet valve assemblies 2 are connected, each air inlet valve assembly 2 can not only supply the target gas to the corresponding air inlet heating component, but also supply the target gas to other air inlet heating components corresponding to the same group of air inlet valve assemblies 2, thereby improving the gas supply efficiency.

[0046] In some embodiments, there are multiple air outlet valve assemblies 3, each of which is connected to an air outlet heating component in a one-to-one correspondence, and the air outlet heating component is located at the edge of the furnace body. Similarly, after the number of air outlet heating components is determined, the corresponding air outlet valve assemblies 3 can be installed. The opening principle of the air outlet valve assembly 3 can also be selected according to the temperature in the furnace body. For example, if the temperature on the left side of the furnace body is higher, the air outlet valve assembly 3 on the left side can be opened; vice versa.

[0047] In some embodiments, the air outlet valve assembly 3 includes a first air outlet valve assembly 3 and a second air outlet valve assembly 3; the air outlet heating component includes a first air outlet heating component and a second air outlet heating component, the first air outlet heating component is located at the first side of the furnace body, the second air outlet heating component is located at the second side of the furnace body, and the temperature of the first side of the furnace body is greater than the temperature of the second side of the furnace body; the number of the first air outlet valve assembly 3 is the same as that of the first air outlet heating component and corresponds to each other, the number of the second air outlet valve assembly 3 is the same as that of the second air outlet heating component and corresponds to each other, and the number of the first air outlet valve assembly 3 is less than that of the second air outlet valve assembly 3. Similarly, the positions of the air outlet valve assemblies 3 in each group of air outlet valve assemblies 3 are close to each other. For example, the air outlet valve assemblies 3 on several adjacent air outlet heating components in the furnace body can be set as a group of air outlet valve assemblies 3, and the air outlet valve assemblies 3 in the same group can be connected through the first air duct 4. Such a setting is to enable multiple air outlet valve assemblies 3 to discharge gas in the furnace body at the same time after several air outlet valve assemblies 3 are connected, thereby improving the exhaust efficiency.

[0048] Furthermore, by setting the number of the first air outlet valve assemblies 3 to be smaller than the number of the second air outlet valve assemblies 3, under the condition of the same airflow, by reducing the number of the first air outlet valve assemblies 3, that is, reducing the set number of the first air outlet heating components, it is ensured that more airflow flows out from fewer first air outlet heating components, thereby achieving the purpose of rapid cooling; and the number of the second air outlet valve assemblies 3 is relatively large, that is, the set number of the second air outlet heating components is large, thereby ensuring that more airflow flows out from multiple first air outlet heating components at the same time, thereby improving the exhaust efficiency. The above-mentioned setting, by setting different numbers of air outlet valve assemblies 3 according to the temperature heights of different temperatures in the furnace body, makes the cooling efficiency in the entire furnace body more uniform. When the production line needs to adjust the temperature in the furnace or shut down for maintenance, the temperature of the heating temperature zone can be quickly lowered, saving waiting time and labor costs, and has good economic benefits.

[0049] In some embodiments, Figure 2-4 As shown, the air inlet valve assembly 2 and / or the air outlet valve assembly 3 includes a valve body 6, a first sealing member 7, a second air duct 8, a second sealing member 9 and a telescopic member 10, and the controller is connected to the telescopic member 10; one end of the second air duct 8 is connected to the valve body 6, and the other end is connected to the interior of the heating member 1; the first sealing member 7 is installed on the valve body 6, the telescopic member 10 is installed on the first sealing member 7, and the movable end of the telescopic member 10 is connected to the second sealing member 9 to drive the second sealing member 9 to seal the second air duct 8 or open the second air duct 8; at least one side of the valve body 6 is also provided with an air duct interface 11 for communicating with the first air duct 4. Of course, the air duct interface 11 may not be provided on the valve body 6 of the air inlet valve assembly 2, that is, adjacent air inlet valve assemblies 2 may not be connected.

[0050] Specifically, the first sealing member 7 and the second sealing member 9 are preferably sealing plates, the first sealing member 7 is used to seal the valve body 6, the second sealing member 9 is used to open or close the second air duct 8, the fixed part of the telescopic member 10 is installed on the first sealing member 7, and the movable end of the telescopic member 10 can extend to the inside of the valve body 6 relative to the first sealing member 7; an air duct interface 11 is provided on the valve body 6, which can facilitate the communication between two adjacent valve bodies 6, or the communication between the valve body 6 and the exhaust filter box 5. For a single air inlet valve assembly 2 or air outlet valve assembly 3, the air duct interface 11 may not be provided on the valve body 6. Furthermore, the controller realizes the opening or closing of a single air inlet valve assembly 2 or air outlet valve assembly 3 by controlling the telescopic member 10, which is convenient to operate and has a wide adjustable range.

[0051] In some embodiments, the air duct interface 11 is detachably connected to the first air duct 4 via a locking clamp 12. Specifically, the air duct interface 11 is fixed to the first air duct 4 via the locking clamp 12, which facilitates disassembly, maintenance and replacement.

[0052] In some embodiments, Figure 3 The air inlet valve assembly 2 also includes an air inlet pipe, and an air inlet interface 13 is also provided on the first sealing member 7 of the air inlet valve assembly 2, and the air inlet interface 13 is communicated with the air inlet pipe. Specifically, for the air inlet valve assembly 2, an air inlet interface 13 is also provided on the first sealing member 7, and the air inlet interface 13 is communicated with the air inlet pipe to provide a target gas; the target gas can be air or nitrogen. When used in an air furnace, the target gas is air, and when used in a nitrogen furnace, the target gas is nitrogen.

[0053] In some embodiments, the telescopic component 10 is a cylinder, and the controller is connected to both the telescopic component 10 and the air inlet interface 13; the controller is used to control the telescopic component 10 and the air inlet interface 13 of at least one air inlet valve assembly 2, and the telescopic component 10 of at least one air outlet valve assembly 3 to be opened simultaneously. Specifically, the controller controls the action of the cylinder to control the telescopic component 10 and the air inlet interface 13 of a single air inlet valve assembly 2 and the telescopic component 10 of the air outlet valve assembly 3, thereby realizing the air intake and exhaust process.

[0054] In a specific embodiment, Figure 6As shown, there are 10 heating components 1 from ① to ⑩ in total. The cooling device is applied in the furnace of the reflow soldering furnace body, and comprises an air outlet valve assembly 3, an air inlet valve assembly 2, a first air duct 4 and an exhaust filter box 5. For the air outlet valve assembly 3 and the air inlet valve assembly 2, during installation, first install the second air duct 8 on the valve body 6, then install the air intake joint and the telescopic component 10 on the first sealing plate in turn, and fix the second sealing plate on the movable end of the telescopic component 10; then insert and fix the assembled air outlet valve assembly 3 on the ①, ②, ③ and ⑩ heating components 1, insert and fix the air inlet valve assembly 2 on the ④ to 9 heating components 1, and then use the first air duct 4 and the locking clamp 12 to seal and connect the air outlet valve assemblies 3 corresponding to the ① to ③ heating components 1, the air inlet valve assemblies 2 corresponding to the ④ to ⑤ heating components 1, and the air inlet valve assemblies 2 corresponding to the ⑥ to 9 heating components 1, respectively; finally, use the first air duct 4 and the locking clamp 12 to connect the air outlet valve assemblies 3 on the ① and ⑩ heating components 1 to the exhaust filter boxes 5 on both sides. The main working process is that the ④ to 9 heating components 1 are the air inlet heating components, and the ①, ②, ③ and 10 heating components 1 are the air outlet heating components. The air inlet valve assembly 2 on the ④ to 9 heating components 1 is filled with gas through the air inlet joint to squeeze the hot air in the furnace body to the outlet of the furnace body, and then the ①, ②, ③ and 10 heating components 1 will extract the hot air and enter the exhaust filter box 5 on both sides through the air outlet valve assembly 3 for filtration and discharge. When nitrogen reflow is used, nitrogen is filled through the air inlet joint to prevent the oxygen concentration of the nitrogen furnace from exceeding the set value range; and, by controlling the telescopic component 10 through the controller, the second sealing plate and the second air duct 8 can be opened and closed, thereby realizing rapid cooling of a single or multiple heating components 1. The above working process can quickly reduce the temperature in the furnace, shorten the product transfer time, and improve production efficiency.

[0055] When the reflow soldering heating zone rapid cooling device is used in an air furnace, air is quickly filled into the furnace, and the hot air in the furnace is squeezed to the entrance and exit, and discharged through the exhaust filter box 5; when it is used in a nitrogen furnace, nitrogen will be filled into the furnace, and the hot air will be discharged through the exhaust filter box 5 in the same manner, which plays a role in rapid cooling, and at the same time prevents the oxygen concentration of the nitrogen furnace from exceeding the set value range, shortens the product transfer time, and improves production efficiency. Moreover, each outlet valve assembly 3 or inlet valve assembly 2 is equipped with a switch device composed of a telescopic component 10 and a second sealing component 9, which can quickly cool one or several heating components 1, and is more intelligent.

[0056] In addition to the above-mentioned cooling device, the utility model also provides a reflow soldering device including a furnace body, a heating component 1 and the above-mentioned cooling device. For the structure of other parts of the reflow soldering device, please refer to the prior art and will not be described in detail herein.

[0057] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0058] The cooling device provided by the utility model is introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A cooling device, applied to a furnace body of a reflow soldering device, wherein a plurality of heating components (1) are arranged in the furnace body, and the interior of the heating components (1) is connected to the furnace chamber of the furnace body; characterized in that: include: A plurality of air inlet valve assemblies (2) are installed on the air inlet heating component and are used to provide target gas to the interior of the air inlet heating component; A plurality of air outlet valve assemblies (3) are installed on the air outlet heating component and are used to allow the gas in the air outlet heating component to flow out; An exhaust filter box (5), installed on the furnace body, for filtering and outputting the gas in the air outlet heating component; A first air duct (4) is connected between the air outlet valve assembly (3) and the air exhaust filter box (5), and / or is connected between adjacent air inlet valve assemblies (2), and / or is connected between adjacent air outlet valve assemblies (3); A controller is connected to the air inlet valve assembly (2) and the air outlet valve assembly (3), and is used to control at least one of the air inlet valve assembly (2) and at least one of the air outlet valve assembly (3) to be opened or closed simultaneously.

2. The cooling device according to claim 1, characterized in that: There are a plurality of air inlet valve assemblies (2), each of which is connected to the air inlet heating component in a one-to-one correspondence, and the air inlet heating component is located in the middle of the furnace body.

3. The cooling device according to claim 2, characterized in that: The air inlet valve assembly (2) comprises a plurality of groups, each group of the air inlet valve assembly (2) comprises at least two air inlet valve assemblies (2), and the air inlet valve assemblies (2) in each group of the air inlet valve assemblies (2) are connected to each other via the first air duct (4).

4. The cooling device according to claim 1, characterized in that: There are a plurality of air outlet valve assemblies (3), each of which is connected to the air outlet heating component in a one-to-one correspondence, and the air outlet heating component is located at the edge of the furnace body.

5. The cooling device according to claim 4, characterized in that: The air outlet valve assembly (3) comprises a first air outlet valve assembly (3) and a second air outlet valve assembly (3); the air outlet heating component comprises a first air outlet heating component and a second air outlet heating component, the first air outlet heating component is located on the first side of the furnace body, the second air outlet heating component is located on the second side of the furnace body, the temperature of the first side of the furnace body is greater than the temperature of the second side of the furnace body; the number of the first air outlet valve assemblies (3) and the first air outlet heating components is the same and corresponds one to one, the number of the second air outlet valve assemblies (3) and the second air outlet heating components is the same and corresponds one to one, and the number of the first air outlet valve assemblies (3) is less than the number of the second air outlet valve assemblies (3).

6. The cooling device according to any one of claims 1 to 5, characterized in that: The air inlet valve assembly (2) and / or the air outlet valve assembly (3) comprises a valve body (6), a first sealing member (7), a second air duct (8), a second sealing member (9) and a telescopic component (10), wherein the controller is connected to the telescopic component (10); one end of the second air duct (8) is connected to the valve body (6), and the other end is connected to the interior of the heating component (1); the first sealing member (7) is mounted on the valve body (6), the telescopic component (10) is mounted on the first sealing member (7), and the movable end of the telescopic component (10) is connected to the second sealing member (9) to drive the second sealing member (9) to seal the second air duct (8) or open the second air duct (8); at least one side of the valve body (6) is also provided with an air duct interface (11) for communicating with the first air duct (4).

7. The cooling device according to claim 6, characterized in that: The air duct interface (11) and the first air duct (4) are detachably connected via a locking clamp (12).

8. The cooling device according to claim 6, characterized in that: The air intake valve assembly (2) further comprises an air intake pipe, and an air intake interface (13) is also provided on the first sealing member (7) of the air intake valve assembly (2), wherein the air intake interface (13) is in communication with the air intake pipe.

9. The cooling device according to claim 8, characterized in that: The telescopic component (10) is a cylinder, and the controller is connected to both the telescopic component (10) and the air inlet interface (13); the controller is used to control the telescopic component (10) and the air inlet interface (13) of at least one of the air inlet valve assemblies (2), and the telescopic component (10) of at least one of the air outlet valve assemblies (3) to open simultaneously.

10. A reflow soldering device, comprising a furnace body, a heating component (1) and a cooling device, characterized in that: The cooling device is the cooling device according to any one of claims 1 to 9.

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