Circuit board cleaning device capable of recycling cleaning fluid

Abstract

The utility model discloses a circuit board cleaning device capable of recycling cleaning fluid, which comprises a mounting frame, an ultrasonic cleaning mechanism, a drying mechanism and a filtering mechanism are arranged on the mounting frame, the filtering mechanism is arranged at the lower end of the mounting frame, the ultrasonic cleaning mechanism is arranged at the upper end of the mounting frame, and fixing frames extending upwards are arranged at two side ends of the ultrasonic cleaning mechanism. The drying mechanism is installed on the fixing frame, located above the ultrasonic cleaning mechanism and used for drying the cleaned circuit board. The circuit board cleaning device is simple in structure and convenient and fast to use, the drying mechanism, the filtering mechanism and the ultrasonic cleaning mechanism are arranged together, so that a circuit board can be dried immediately after being cleaned, the transfer process of workers is reduced, the working efficiency is improved, cleaning liquid can be discharged after being used once, and the cleaning effect is good. And the liquid enters the filtering mechanism to be filtered, so that dust and impurities floating on the liquid are filtered and screened, and the cleaning liquid which is repeatedly used next time can be kept in a clean and pollution-free state.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board cleaning, in particular to a circuit board cleaning device with circulatory cleaning fluid. Background Art

[0002] Circuit boards are one of the most important components in electronic products and can be found everywhere in different electronic products, from small electronic watches and calculators to large aerospace electronic equipment and weapon systems. As long as there are integrated circuits and other components, you can see them. Their applications are very wide.

[0003] After the circuit board is manufactured, it needs to be cleaned. The general cleaning process includes several steps such as board loading, acid cleaning, water overflow washing, alkaline cleaning, ultrasonic cleaning, etc. Among them, the ultrasonic cleaning step is particularly important. Traditional circuit boards are generally cleaned with ultrasound, which is done by placing the circuit board in an ultrasonic cleaning machine filled with board washing water.

[0004] When the circuit board is ultrasonically cleaned, the dust and impurities attached to the top will be cleaned off, but as time goes by, the impurities in the cleaning liquid will increase. If the new cleaning liquid is not replaced in time, the impurities floating in the cleaning liquid will re-attach to the cleaned circuit board, reducing the cleaning quality. Therefore, the cleaning liquid needs to be replaced frequently. However, frequent replacement of the cleaning liquid will increase the production cost, and after cleaning, the circuit board needs to be dried manually, which requires transportation time and labor.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to solve the deficiencies in the prior art, and its main purpose is to provide a circuit board cleaning device with a circulatory cleaning fluid.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A circuit board cleaning device with a circulatory cleaning fluid comprises a mounting frame, on which an ultrasonic cleaning mechanism, a drying mechanism and a filtering mechanism are arranged, wherein the filtering mechanism is arranged at the lower end of the mounting frame, the ultrasonic cleaning mechanism is arranged at the upper end of the mounting frame, and both side ends of the ultrasonic cleaning mechanism are provided with upwardly extending fixing frames, and the drying mechanism is mounted on the fixing frame and located above the ultrasonic cleaning mechanism for drying the cleaned circuit board.

[0009] Preferably, the filtering mechanism includes a water inlet pipe, a water outlet pipe, a water pump and a filter, one end of the water outlet pipe and the water inlet pipe are connected to the ultrasonic cleaning mechanism, and the other end is connected to the filter, and the water pump is arranged between the filter and the water outlet pipe for transporting the filtered cleaning liquid to the ultrasonic cleaning mechanism for use.

[0010] As a preferred embodiment, the filter is provided with a liquid inlet and a liquid outlet, the liquid inlet is located at the top of the filter for connecting to a water inlet pipe, the liquid outlet is located at one side of the bottom of the filter for connecting to a water outlet pipe, and the filter is also provided with a first filter layer and a second filter layer, and the first filter layer is located above the second filter layer.

[0011] As a preferred embodiment, the first filter layer is a coarse filter element, the second filter layer is a fine filter element, and the filter filters the dust and impurities floating in the cleaning liquid from top to bottom in sequence;

[0012] The water inlet pipe is provided with a liquid inlet control valve for controlling the cleaning liquid to enter the filter, and the water outlet pipe is provided with a liquid outlet control valve for controlling the filtered cleaning liquid to enter the ultrasonic cleaning mechanism.

[0013] Preferably, the ultrasonic cleaning mechanism comprises a cleaning box, a cleaning cover and a storage net. The cleaning box is placed on a mounting frame and allows a filtering mechanism to pass through from bottom to top, so that the cleaning liquid can flow downward / be pumped upward. The cleaning cover is covered on the cleaning box to form a chamber for cleaning circuit boards.

[0014] As a preferred embodiment, the inner end surface of the cleaning box is provided with a boss for placing a storage net on top, the inner end of the storage net is provided with a pad for placing a circuit board, and the storage net is also provided with a fixing clip for clamping and fixing the circuit board. The fixing clip is arranged at the outer end edge of the storage net to clamp and fix the edge of the circuit board so that it can be fixed on the storage net for cleaning and dust removal.

[0015] As a preferred embodiment, the number of the pads is set to be plural, and the plural pads are distributed at intervals at the inner end of the storage net so that the edge of the circuit board can be placed on the upper end thereof;

[0016] The number of the fixing clips is set to be plural, and the plural fixing clips are set at the edge of the storage net and extend inwardly, one end of the fixing clip is fixed to the edge of the storage net, and the other end can be elastically deformed to be fixed on the circuit board.

[0017] As a preference, the drying mechanism includes a heater, a heating wire, a fan and a guide shell, the heater is mounted on the upper end of the fixing frame, the heating wire is arranged at the lower end of the fixing frame and passes through the fixing frame to be connected with the heater above, the fan is mounted on the lower end of the fixing frame and is located in the center area of ​​the heating wire, and is used to blow hot air downward, and the guide shell is mounted on the outer end of the heating wire for the fan to blow hot air in a directional manner to dry the circuit board.

[0018] Preferably, the lower opening of the guide shell is trumpet-shaped with a small upper portion and a large lower portion, and the lower opening of the guide shell is larger than the area of ​​the circuit board so that the drying hot air blown downward can be fully blown onto the circuit board.

[0019] As a preferred embodiment, it further comprises an infrared temperature sensor for detecting the temperature on the circuit board, wherein the infrared temperature sensor is arranged in the guide housing and mounted on the fixing frame.

[0020] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0021] The utility model has a simple structure and is quick and easy to use. By arranging a drying mechanism, a filtering mechanism and an ultrasonic cleaning mechanism together, the circuit board can be dried immediately after being cleaned, which reduces the process of workers' transportation and improves work efficiency. Moreover, the cleaning liquid will be discharged after being used once and enter the filtering mechanism for filtering, thereby filtering and screening dust and impurities floating on the liquid, ensuring that the cleaning liquid reused next time can maintain a clean and pollution-free state, avoiding contamination of the cleaned circuit board, ensuring the quality of circuit board cleaning, reducing the number of times the cleaning liquid is frequently replaced, reducing the waste of resources, and reducing the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a schematic diagram of the exploded structure of the utility model.

[0025] Figure 3 It is a cross-sectional structural schematic diagram of the ultrasonic cleaning mechanism of the utility model.

[0026] Figure 4 It is a schematic diagram of the overall structure of the drying mechanism of the utility model.

[0027] Figure 5 It is a schematic diagram of the internal structure of the drying mechanism of the utility model.

[0028] Figure 6 It is a schematic diagram of the internal structure of the filter of the utility model.

[0029] Among them, the reference numerals in the figure are:

[0030] 10. Mounting frame; 20. Ultrasonic cleaning mechanism; 21. Cleaning box; 211. Boss; 22. Cleaning cover; 23. Storage net; 24. Pad; 25. Fixing clip; 30. Drying mechanism; 31. Heater; 32. Heating wire; 33. Fan; 34. Guide shell; 35. Infrared temperature sensor; 40. Filter mechanism; 41. Water inlet pipe; 42. Water outlet pipe; 43. Water pump; 44. Filter; 441. Liquid inlet; 442. Liquid outlet; 443. First filter layer; 444. Second filter layer; 45. Liquid inlet control valve; 46. Liquid outlet control valve; 50. Fixing frame. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] Reference Figure 1-6 As shown: A circuit board cleaning device with a recyclable cleaning liquid includes a mounting frame 10, on which an ultrasonic cleaning mechanism 20, a drying mechanism 30 and a filtering mechanism 40 are arranged. The filtering mechanism 40 is arranged at the lower end of the mounting frame 10, and the ultrasonic cleaning mechanism 20 is arranged at the upper end of the mounting frame 10, and upwardly extending fixing frames 50 are arranged on both sides of the ultrasonic cleaning mechanism 20, and then the drying mechanism 30 is installed on the fixing frame 50, and the drying mechanism 30 is located above the ultrasonic cleaning mechanism 20, so that after the circuit board is cleaned, it is dried by the upper drying mechanism 30, so as to avoid the cleaning liquid being taken out and ensure the drying of the circuit board.

[0037] In this embodiment, the filtering mechanism 40 used includes an inlet pipe 41, an outlet pipe 42, a water pump 43 and a filter 44. By connecting one end of the outlet pipe 42 and the inlet pipe 41 to the ultrasonic cleaning mechanism 20 respectively, and then connecting the other end to the filter 44, and arranging the water pump 43 between the filter 44 and the outlet pipe 42, the filtered cleaning liquid can be transported to the ultrasonic cleaning mechanism 20 through the water pump 43 for use.

[0038] Furthermore, the ultrasonic cleaning mechanism 20 is provided with holes corresponding to the water outlet pipe 42 and the water inlet pipe 41, so that the water outlet pipe and the water inlet pipe 41 can be inserted from bottom to top and connected to the ultrasonic cleaning mechanism 20 respectively, so that the liquid used for cleaning can circulate and be filtered for use.

[0039] Furthermore, a liquid inlet 441 and a liquid outlet 442 are provided on the filter 44. The liquid inlet 441 is provided at the top of the filter 44 so that it can be connected to the water inlet pipe 41. The liquid outlet 442 is provided at one side of the bottom of the filter 44 for connecting to the water outlet pipe 42.

[0040] Specifically, a first filter layer 443 and a second filter layer 444 are provided in the filter 44. The first filter layer 443 is arranged above the second filter layer 444 for preliminary filtration, and then the cleaning liquid is allowed to flow downward for secondary filtration, thereby achieving a cyclical use effect.

[0041] Furthermore, the first filter layer 443 used is a coarse filter element, and the second filter layer 444 is a fine filter element, and the dust impurities floating in the cleaning liquid are filtered from top to bottom in sequence through the filter 44.

[0042] Furthermore, a liquid inlet control valve 45 is provided on the water inlet pipe 41 for controlling the cleaning liquid to enter the filter 44 , and a liquid outlet control valve 46 is provided on the water outlet pipe 42 for controlling the filtered cleaning liquid to enter the ultrasonic cleaning mechanism 20 .

[0043] Specifically, a drain port is provided below the filter 44 for discharging the contaminated cleaning liquid to the outside. When the cleaning liquid is contaminated, the drain port is opened to discharge the contaminated cleaning liquid inside to the outside for emptying. Then the drain port is closed and new cleaning liquid is added from the ultrasonic cleaning mechanism 20, so that it can be used as a clean circulating cleaning liquid.

[0044] In this embodiment, the ultrasonic cleaning mechanism 20 includes a cleaning box 21, a cleaning cover 22 and a storage net 23. The cleaning box 21 is placed on the mounting frame 10, and the water inlet pipe 41 and the water outlet pipe 42 of the filtering mechanism 40 pass through from bottom to top to connect, so that the cleaning liquid can flow downward / be pumped upward; when in use, the cleaning cover 22 is covered on the cleaning box 21 to form a chamber for cleaning the circuit board, so as to avoid the cleaning liquid from being sprayed to the outside during the cleaning process.

[0045] Specifically, a boss 211 is provided on the inner end surface of the cleaning box 21 for placing the storage net 23 thereon, so that the edge of the storage net 23 can overlap the cleaning box 21, and a plurality of through holes are provided in the central area of ​​the storage net 23 for the cleaning liquid to flow for cleaning, and a pad 24 for placing a circuit board is provided at the inner end center position of the storage net 23, and a fixing clip 25 for clamping and fixing the circuit board is provided on the storage net 23, and the fixing clip 25 is provided at the outer end edge of the storage net 23, and is clamped and fixed to the edge of the circuit board, so that the circuit board can be fixed on the storage net 23 for cleaning and dust removal.

[0046] Specifically, the number of pads 24 is set to be plural, and the plural pads 24 are spaced apart and distributed in the inner center area of ​​the storage net 23 so that the edge of the circuit board can be overlapped and placed on the upper end, thereby avoiding affecting the position of the circuit board that needs to be cleaned and ensuring the cleanliness of the circuit board.

[0047] Specifically, the number of the fixing clips 25 is set to be plural, and the plural fixing clips 25 are set at the edge of the storage net 23 and extend toward the inner end center area of ​​the storage net 23, that is, one end of the fixing clip 25 is fixed at the edge of the storage net 23, so that the other end can be elastically deformed and pressed against the circuit board, thereby fixing the circuit board for subsequent cleaning.

[0048] In this embodiment, the drying mechanism 30 includes a heater 31, a heating wire 32, a fan 33 and a guide shell 34. The heater 31 is installed on the upper end of the fixed frame 50, and the heating wire 32 is installed on the lower end of the fixed frame 50 and passes through the fixed frame 50 to connect with the upper heater 31, thereby generating hot air for drying. Then, the fan 33 is installed on the lower end of the fixed frame 50, and the fan 33 is located in the center area of ​​the heating wire 32 to blow hot air downward so that the hot air can be correctly blown onto the circuit board. The guide shell 34 is installed on the outer end of the heating wire 32 to provide a directional conveying function, so that the fan 33 can blow hot air in a directional manner to dry the circuit board.

[0049] Specifically, the lower opening of the guide shell 34 is trumpet-shaped, smaller at the top and larger at the bottom, and is larger than the area of ​​the circuit board, so that the dry hot air blown downward can be fully blown onto the circuit board to avoid the situation where it is not blown.

[0050] In this embodiment, an infrared temperature sensor 35 for detecting the temperature on the circuit board is also included. The infrared temperature sensor 35 is arranged in the guide shell 34 and installed on the fixing frame 50, so that when the hot air is blown downward for drying, the temperature of the circuit board can be monitored in real time to avoid the circuit board from being damaged due to high temperature.

[0051] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A circuit board cleaning device with a recyclable cleaning fluid, comprising a mounting frame, characterized in that: The mounting frame is provided with an ultrasonic cleaning mechanism, a drying mechanism and a filtering mechanism, wherein the filtering mechanism is arranged at the lower end of the mounting frame, the ultrasonic cleaning mechanism is arranged at the upper end of the mounting frame, and both side ends of the ultrasonic cleaning mechanism are provided with upwardly extending fixing frames, and the drying mechanism is installed on the fixing frame and is located above the ultrasonic cleaning mechanism for drying the cleaned circuit board.

2. The circuit board cleaning device with recyclable cleaning fluid according to claim 1 is characterized in that: The filtering mechanism includes a water inlet pipe, a water outlet pipe, a water pump and a filter. One end of the water outlet pipe and the water inlet pipe is connected to the ultrasonic cleaning mechanism, and the other end is connected to the filter. The water pump is arranged between the filter and the water outlet pipe to transport the filtered cleaning liquid to the ultrasonic cleaning mechanism for use.

3. The circuit board cleaning device with recyclable cleaning fluid according to claim 2 is characterized in that: The filter is provided with a liquid inlet and a liquid outlet. The liquid inlet is located at the top of the filter for connecting to the water inlet pipe, and the liquid outlet is located at one side of the bottom of the filter for connecting to the water outlet pipe. The filter is also provided with a first filter layer and a second filter layer, and the first filter layer is located above the second filter layer.

4. The circuit board cleaning device with recyclable cleaning fluid according to claim 3 is characterized in that: The first filter layer is a coarse filter element, the second filter layer is a fine filter element, and the filter filters the dust and impurities floating in the cleaning liquid from top to bottom in sequence; The water inlet pipe is provided with a liquid inlet control valve for controlling the cleaning liquid to enter the filter, and the water outlet pipe is provided with a liquid outlet control valve for controlling the filtered cleaning liquid to enter the ultrasonic cleaning mechanism.

5. The circuit board cleaning device with recyclable cleaning fluid according to claim 1 is characterized in that: The ultrasonic cleaning mechanism includes a cleaning box, a cleaning cover and a storage net. The cleaning box is placed on a mounting frame and allows a filtering mechanism to pass through from bottom to top, so that the cleaning liquid can flow downward / be pumped upward. The cleaning cover is covered on the cleaning box to form a chamber for cleaning circuit boards.

6. The circuit board cleaning device with recyclable cleaning fluid according to claim 5, characterized in that: The inner end surface of the cleaning box is provided with a boss for placing a storage net on top, the inner end of the storage net is provided with a pad for placing a circuit board, and the storage net is also provided with a fixing clip for clamping and fixing the circuit board. The fixing clip is arranged at the outer end edge of the storage net to clamp and fix the edge of the circuit board so that it can be fixed on the storage net for cleaning and dust removal.

7. The circuit board cleaning device with recyclable cleaning fluid according to claim 6, characterized in that: The number of the pads is set to be plural, and the plural pads are distributed at intervals at the inner end of the storage net so that the edge of the circuit board can be placed on the upper end thereof; The number of the fixing clips is set to be plural, and the plural fixing clips are set at the edge of the storage net and extend inwardly, one end of the fixing clip is fixed to the edge of the storage net, and the other end can be elastically deformed to be fixed on the circuit board.

8. The circuit board cleaning device with recyclable cleaning fluid according to claim 1, characterized in that: The drying mechanism includes a heater, a heating wire, a fan and a guide shell. The heater is installed at the upper end of the fixing frame, the heating wire is arranged at the lower end of the fixing frame and passes through the fixing frame to be connected with the heater above, the fan is installed at the lower end of the fixing frame and is located in the central area of ​​the heating wire, and is used to blow hot air downward, and the guide shell is installed at the outer end of the heating wire for the fan to blow hot air in a directional manner to dry the circuit board.

9. The circuit board cleaning device with recyclable cleaning fluid according to claim 8, characterized in that: The lower opening of the guide housing is in a trumpet shape that is smaller at the top and larger at the bottom. The lower opening of the guide housing is larger than the area of ​​the circuit board so that the drying hot air blown downward can be fully blown onto the circuit board.

10. The circuit board cleaning device with recyclable cleaning fluid according to claim 8, characterized in that: The invention also comprises an infrared temperature sensor for detecting the temperature on the circuit board. The infrared temperature sensor is arranged in the guide housing and installed on the fixing frame.

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