Heating and drying device

Abstract

The utility model relates to a heating and drying device which comprises a containing assembly and a heating assembly, the containing assembly comprises a first shell and a conveying piece, the first shell comprises a first containing cavity, and a conveying path of the conveying piece penetrates through the first containing cavity; the suction end of the fan is communicated with the first accommodating cavity; the heating assembly comprises a second shell and a heating pipeline, the second shell comprises a second containing cavity, the heating pipeline is located in the second containing cavity and connected with a heating source, and the output end of the fan communicates with the second containing cavity; and the filtering assembly is communicated with the first accommodating cavity and the second accommodating cavity. According to the heating and drying device, safety accidents caused by moisture of a heating source can be avoided, and therefore potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a heating and drying device. Background Technology

[0002] A PCB, or Printed Circuit Board, is the support structure for electronic components and the carrier for their electrical interconnections. In the wet PCB manufacturing process, the PCB needs to be dried. Currently, this is achieved by heating the space containing the PCB with an electric heater, causing the surface moisture to evaporate. However, drying the PCB increases air humidity, and water droplets may appear on the sidewalls of the space containing the PCB. This can lead to safety hazards such as short circuits, leakage, and electrical failures in the electric heater. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a heating and drying device that can avoid safety accidents caused by moisture in the heating source, thereby reducing safety hazards.

[0004] To solve the above-mentioned technical problems, this utility model provides a heating and drying device, comprising: a receiving component including a first housing and a conveying component, the first housing including a first receiving cavity, the conveying path of the conveying component passing through the first receiving cavity; a fan, the suction end of the fan communicating with the first receiving cavity; a heating component including a second housing and a heating pipe, the second housing including a second receiving cavity, the heating pipe located within the second receiving cavity, the heating pipe being connected to a heating source, the output end of the fan communicating with the second receiving cavity; and a filtering component communicating with both the first and second receiving cavities.

[0005] In one embodiment of this utility model, a medium is provided inside the heating pipe, and an input connector and an output connector are respectively connected to both ends of the heating pipe. The second housing is provided with an input hole and an output hole. The input connector is connected to the input hole, and the output connector is connected to the output hole. The input end of the heating source is connected to the input connector, and the output end of the heating source is connected to the output connector.

[0006] In one embodiment of this utility model, the output end of the fan is connected to the second receiving cavity through a first pipe, the suction end of the fan is connected to the first receiving cavity through a second pipe, and the filter assembly is connected to the second receiving cavity through a third pipe.

[0007] In one embodiment of the present invention, the conveying component includes a plurality of first rotating shafts and a plurality of second rotating shafts. The first rotating shafts are connected to a plurality of first pressing blocks, and the second rotating shafts are connected to a plurality of second pressing blocks corresponding to the positions of the first pressing blocks. A clamping space is formed between the first pressing blocks and the second pressing blocks.

[0008] In one embodiment of the present invention, the receiving assembly further includes a first flow guide shroud, the first rotating shaft is located at the opening end of the first flow guide shroud, the filtering assembly is connected to the first receiving cavity through a fourth pipe, and the end of the fourth pipe is connected to the first flow guide shroud.

[0009] In one embodiment of the present invention, the receiving component further includes a second flow guide shroud, which is disposed opposite to the first flow guide shroud. The second rotating shaft is located at the opening end of the second flow guide shroud. The filtering component is also connected to the first receiving cavity through a fifth pipe, and the end of the fifth pipe is connected to the second flow guide shroud.

[0010] In one embodiment of this utility model, a clamping assembly is further included. The heating assembly also includes a first end cap located on one side of the second housing. The clamping assembly includes a first connecting plate and a second connecting plate. The first connecting plate is connected to the second housing. A connecting rod is hinged to the first connecting plate. The second connecting plate is connected to the first end cap. The second connecting plate includes a receiving groove located on the moving path of the connecting rod. A third pressing block is connected to the connecting rod. The third pressing block can abut against the second connecting plate.

[0011] In one embodiment of the present invention, the filter assembly includes a second end cap, and the fourth pipe and the fifth pipe are both connected to the second end cap.

[0012] In one embodiment of the present invention, the first housing is further connected to a water collecting component, the collecting end of which is provided with multiple through holes, and the water collecting component penetrates through the first housing.

[0013] In one embodiment of this utility model, a support frame is also included, and the first housing, the fan, the second housing, and the filter assembly are all connected to the support frame.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The heating and drying device described in this utility model connects a heating source to a heating pipe located inside a second receiving cavity. This allows the heat generated by the heating source to be dissipated into the gas inside the second receiving cavity through heat transfer via the heating pipe. Consequently, the heating source can be positioned away from the first receiving cavity, preventing the humid gas circulating between the first and second receiving cavities from directly contacting the heating source. This avoids safety accidents caused by moisture in the heating source and reduces safety hazards. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a heating and drying device according to this utility model;

[0018] Figure 2 yes Figure 1 Partial structural diagram;

[0019] Figure 3 This is a schematic diagram of the internal structure of the heating component;

[0020] Figure 4 This is a partial structural diagram of the component;

[0021] Figure 5 This is a schematic diagram of the assembly structure of the clamping components.

[0022] Explanation of reference numerals in the accompanying drawings: 1. Support frame; 2. Fan; 3. Heating assembly; 4. Filter assembly; 5. Receiving assembly; 6. Clamping assembly; 21. First pipe; 22. Second pipe; 31. Third pipe; 32. Second housing; 33. Input hole; 34. Output hole; 35. First end cap; 36. Heating pipe; 41. Second end cap; 42. Fourth pipe; 43. Fifth pipe; 51. First housing; 52. Cover plate; 53. Conveying component; 54. First guide shroud; 55. Second guide shroud; 56. Water collecting component; 57. First rotating shaft; 58. Second rotating shaft; 61. First connecting plate; 62. Connecting rod; 63. Second connecting plate; 64. Third pressure block; 361. Input connector; 362. Output connector; 571. First pressure block; 581. Second pressure block. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figures 1 to 3As shown, a heating and drying device of this utility model includes: a receiving component 5, including a first housing 51 and a conveying component 53, the first housing 51 including a first receiving cavity, and the conveying path of the conveying component 53 passing through the first receiving cavity; a fan 2, the suction end of the fan 2 being connected to the first receiving cavity; a heating component 3, including a second housing 32 and a heating pipe 36, the second housing 32 including a second receiving cavity, the heating pipe 36 being located inside the second receiving cavity, the heating pipe 36 being connected to a heating source, and the output end of the fan 2 being connected to the second receiving cavity; and a filter component 4, the filter component 4 being connected to the first receiving cavity and the second receiving cavity.

[0025] In this embodiment, a heating and drying device is provided. A PCB to be dried is conveyed via a conveyor 53. A heating source heats the medium within a heating pipe 36. The heating pipe 36 exchanges heat with the gas in a second receiving cavity, thus raising the temperature of the gas in the second receiving cavity. Simultaneously, a fan 2 drives the gas in the second and first receiving cavities to circulate. During this circulation, the gas is filtered by a filter assembly 4. The heated gas enters the first receiving cavity and exchanges heat with the PCB to be dried, causing the moisture on the surface of the PCB to evaporate. The gas, after exchanging heat with the PCB, enters the second receiving cavity for reheating, continuously heating and drying the PCB in the first receiving cavity. Because the heating source is connected to the heating pipe 36, which is located within the second receiving cavity, the heat generated by the heating source is dissipated into the gas in the second receiving cavity through the heat transfer of the heating pipe 36. Furthermore, the heating source can be positioned away from the first receiving cavity, preventing direct contact between the humid gas circulating between the first and second receiving cavities and the heating source, thus avoiding safety accidents caused by moisture in the heating source and reducing safety hazards.

[0026] Reference Figure 4As shown, the receiving assembly 5 is used to receive the PCB to be dried. The receiving assembly 5 includes a first housing 51 and a conveying member 53. The first housing 51 includes a first receiving cavity. The conveying path of the conveying member 53 passes through the first receiving cavity, that is, the first housing 51 has an opening for the conveying member 53 to pass through. The conveying member 53 can convey the external PCB to be dried into the first receiving cavity. After the PCB to be dried is completed in the first receiving cavity, the conveying member 53 can convey the dried PCB to the outside. The conveying member 53 includes a plurality of first rotating shafts 57 and a plurality of second rotating shafts 58. The first rotating shafts 57 and the second rotating shafts 58 are arranged in parallel, and the first rotating shafts 57 are located above the second rotating shafts 58. The first rotating shaft 57 is connected to a plurality of first pressing blocks 571, and the second rotating shaft 58 is connected to a plurality of second pressing blocks 581 corresponding to the position and number of the first pressing blocks 571. The first pressing blocks 571 and the second pressing blocks 581 form a clamping space for accommodating the PCB to be dried. The first pressing blocks 571 and the second pressing blocks 581 can clamp the PCB to be dried. The second rotating shaft 58 is driven by a rotary drive located outside the first accommodating cavity. The second rotating shaft 58 and the first rotating shaft 57 are driven by gear meshing or magnetic wheel transmission, so that the second rotating shaft 58 can drive the first rotating shaft 57 to rotate. The rotation directions of the first rotating shaft 57 and the second rotating shaft 58 are opposite. The first rotating shaft 57 drives the first pressing blocks 571 to rotate, and the second rotating shaft 58 drives the second pressing blocks 581 to rotate, thereby moving the PCB to be dried.

[0027] Reference Figure 1 and Figure 2 As shown, preferably, the top of the first housing 51 is provided with a vent, and a cover plate 52 is provided on the vent. The cover plate 52 is connected to the edge of the vent through four support columns, and a vent hole is formed between two adjacent support columns. The cover plate 52 can prevent external debris from entering the first receiving cavity, and the vent hole can allow the gas in the first receiving cavity to flow out to the outside, thereby reducing the humidity in the first receiving cavity. Preferably, the bottom of the first housing 51 is also connected to a water collecting component 56. The collecting end of the water collecting component 56 is provided with multiple through holes along the circumference. The collecting end of the water collecting component 56 is located in the first receiving cavity, and the bottom of the first housing 51 is inclined towards the water collecting component 56, so that the bottom of the first housing 51 is a convex frustum shape. The water collecting component 56 penetrates the first housing 51 and is connected to an external water storage component through a water pipe. Water droplets formed on the inner side wall of the first housing 51 can flow along the side wall to the water collecting component 56, and then enter the water storage component through the through holes, preventing water from accumulating in the first receiving cavity.

[0028] The blower 2 can be regarded as a high static pressure blower 2. The suction end of the blower 2 can generate negative pressure to allow gas to enter the blower 2, and the output end of the blower 2 can generate positive pressure to allow the gas entering the blower 2 to be discharged from the output end. The suction end of the blower 2 is connected to the first receiving cavity through the second pipe 22. That is, the two ends of the second pipe 22 are respectively connected to the suction end of the blower 2 and the first housing 51, and the second pipe 22 is connected to the blower 2 and the first receiving cavity.

[0029] Reference Figure 2 and Figure 3 As shown, the heating assembly 3 includes a second housing 32 and a heating pipe 36. The second housing 32 includes a second receiving cavity, and the heating pipe 36 is located inside the second receiving cavity. The heating pipe 36 is connected to a heating source, and the output end of the fan 2 is connected to the second receiving cavity. Specifically, the output end of the fan 2 is connected to the second receiving cavity through a first pipe 21, that is, both ends of the first pipe 21 are connected to the output end of the fan 2 and the second housing 32, respectively, and the second pipe 22 is connected to the fan 2 and the second receiving cavity. The fan 2 can drive the gas in the first receiving cavity to flow to the second receiving cavity. The heating source is located outside the second receiving cavity. The heating pipe 36 contains a medium, which can be considered as liquid or gas. The heating pipe 36 is composed of multiple annular pipes connected in sequence. The two ends of the heating pipe 36 are respectively connected to an input connector 361 and an output connector 362. The side wall of the second housing 32 is provided with a through-hole 33 and an output hole 34. The input connector 361 is connected to the input hole 33, and the output connector 362 is connected to the output hole 34. The input end of the heating source is connected to the input connector 361, and the output end of the heating source is connected to the output connector 362. The heating source can heat the medium inside the heating pipe. The heating source also includes a driving unit, which can drive the medium to circulate in the heating pipe and the heating source, thereby continuously heating the heating pipe and thus continuously heating the second receiving cavity. Since the heating source is outside the second receiving cavity, it avoids contact with humid gas.

[0030] Reference Figure 5As shown, the assembly also includes a clamping component 6, and the heating component 3 further includes a first end cap 35. The first end cap 35 is located on the top side of the second housing 32, and the open end of the second housing 32 is located on the top side of the second housing 32. The first end cap 35 can seal the open end of the second housing 32. The clamping component 6 includes a first connecting plate 61 and a second connecting plate 63. Both the first connecting plate 61 and the second connecting plate 63 are U-shaped. The first connecting plate 61 is connected to the side wall of the second housing 32. A connecting rod 62 is hinged to the opposite side of the first connecting plate 61. The second connecting plate 63 is connected to the first end cap 35, and the second connecting plate 63 corresponds to the first connecting plate 61 in the vertical direction. The opposite sides of the second connecting plate 63 form a receiving groove for accommodating the connecting rod 62, and the receiving groove is located on the moving path of the connecting rod 62. The end of the connecting rod 62 is threadedly connected to a third pressure block 64. After the connecting rod 62 passes through the receiving groove, the third pressure block 64 is rotated to abut against the second connecting plate 63, thereby fixing the position of the first end cover 35 and the second housing 32 relatively. The heating assembly 3 can be connected to multiple clamping assemblies 6, thereby making the fixation of the second housing 32 and the first end cover 35 more stable. The clamping assembly 6 allows the first end cover 35 to be easily opened, thereby cleaning the second receiving cavity and replacing and maintaining the heating pipe 36.

[0031] Reference Figure 2 As shown, the filter assembly 4 is used to filter the gas circulating between the first and second receiving cavities. The filter assembly 4 includes a third housing and a second end cap 41. The second end cap 41 and the third housing are fixed by a clamping assembly 6, and the clamping assembly 6 is configured in the same way as the heating assembly 3, so it will not be described again. The third housing includes a third receiving cavity, and a filter element is provided in the third receiving cavity. The filter element can filter impurities in the gas. The filter assembly 4 is connected to the second receiving cavity through a third pipe 31, that is, the third pipe 31 is connected to the third housing and the second housing 32, and the third pipe 31 is connected to both the third and second receiving cavities.

[0032] Reference Figure 2 and Figure 4As shown, the receiving component 5 also includes a first flow guide shroud 54, and a first rotating shaft 57 is located at the open end of the first flow guide shroud 54. The third receiving cavity of the filter component 4 is connected to the first receiving cavity through a fourth pipe 42, and the end of the fourth pipe 42 is connected to the first flow guide shroud 54, so that the hot gas output from the fourth pipe 42 flows through the first flow guide shroud 54 to the PCB to be dried, thereby improving the heat exchange efficiency between the hot gas and the PCB to be dried. The receiving assembly 5 also includes a second guide shroud 55, which is arranged opposite to the first guide shroud 54, i.e., the opening ends of the first guide shroud 54 and the second guide shroud 55 are located on opposite sides. The second rotating shaft 58 is located at the opening end of the second guide shroud 55. The third receiving chamber of the filter assembly 4 is connected to the first receiving chamber through a fifth pipe 43. The end of the fifth pipe 43 is connected to the second guide shroud 55, so that the hot gas output from the fifth pipe 43 flows to the PCB to be dried through the second guide shroud 55. The arrangement of the first guide shroud 54 and the second guide shroud 55 allows the hot gas to flow to both sides of the PCB to be dried simultaneously, thereby further improving the heat exchange efficiency between the hot gas and the PCB. The end of the second pipe 22 is connected to the first receiving chamber, so that after the hot gas completes the heat exchange with the PCB, it can enter the second receiving chamber through the fan 2, thus avoiding excessive heat loss and ensuring that the gas entering the second receiving chamber still has some heat, reducing energy consumption. Preferably, the ends of the fourth pipe 42 and the fifth pipe 43 are both connected to the second end cap 41, so that when the filter element in the filter assembly 4 needs to be maintained or replaced, only the second end cap 41 needs to be removed, without disassembling the fourth pipe 42 and the fifth pipe 43, thus improving the maintenance and replacement efficiency of the filter element.

[0033] Reference Figure 1 As shown, the heating and drying device also includes a support frame 1. The first housing 51, the fan 2, the second housing 32 and the third housing of the filter assembly 4 are all connected to the support frame 1, and the first housing 51 and the third housing are located above the second housing 32 and the fan 2.

[0034] In use, the PCB to be dried is conveyed by the conveyor 53, the heating source heats the heating pipe 36, the heating pipe 36 exchanges heat with the gas in the second accommodating cavity, causing the gas in the second accommodating cavity to heat up. At the same time, the fan 2 drives the gas in the second accommodating cavity and the first accommodating cavity to form a circulation. During the gas circulation, the gas is filtered by the filter component 4. The heated gas enters the first accommodating cavity through the fourth pipe 42 and the fifth pipe 43 and exchanges heat with the PCB to be dried, thereby evaporating the moisture on the surface of the PCB to be dried. The gas that has exchanged heat with the PCB to be dried enters the second accommodating cavity for reheating, thereby continuously heating and drying the PCB to be dried in the first accommodating cavity.

[0035] The present invention provides a heating and drying device, wherein a heating source is connected to a heating pipe 36, which is located in a second receiving cavity. This allows the heat generated by the heating source to be dissipated into the gas in the second receiving cavity through the heat transfer of the heating pipe 36. Consequently, the heating source can be positioned away from the first receiving cavity, and the humid gas circulating in the first and second receiving cavities will not come into direct contact with the heating source, thus avoiding safety accidents caused by moisture in the heating source and reducing safety hazards.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heating drying device, characterized by, The utility model relates to a kind of smoking device, including: Accommodate component, including first shell and conveying piece, the first shell includes first accommodating cavity, the conveying path of conveying piece passes through the first accommodating cavity; Fan, the suction end of the fan is communicated with the first accommodating cavity; Heating assembly, including second shell and heating pipeline, the second shell includes second accommodating cavity, the heating pipeline is located in the second accommodating cavity, the heating pipeline is connected with heating source, the output end of the fan is communicated with the second accommodating cavity; Filtering assembly, the filtering assembly is communicated with the first accommodating cavity and the second accommodating cavity.

2. The heating drying apparatus according to claim 1, wherein: The heating pipeline is equipped with medium, the two ends of the heating pipeline are connected with input connector and output connector respectively, the second shell is equipped with input hole and output hole, the input connector is connected with the input hole, the output connector is connected with the output hole, the input end of the heating source is connected with the input connector, and the output end of the heating source is connected with the output connector.

3. The heating and drying apparatus according to claim 1, wherein: The output end of the fan is communicated with the second accommodating cavity by first pipeline, the suction end of the fan is communicated with the first accommodating cavity by second pipeline, and the filtering assembly is communicated with the second accommodating cavity by third pipeline.

4. The heating and drying apparatus according to claim 1, wherein: The conveying piece includes a plurality of first rotating shafts and a plurality of second rotating shafts, the first rotating shafts are connected with a plurality of first pressing blocks, the second rotating shafts are connected with a plurality of second pressing blocks corresponding to the positions of the first pressing blocks, and the first pressing blocks and the second pressing blocks form clamping spaces therebetween.

5. The heating drying apparatus according to claim 4, wherein: The accommodate component further includes a first flow guide cover, the first rotating shafts are located at the open ends of the first flow guide cover, the filtering assembly is communicated with the first accommodating cavity by a fourth pipeline, and the end of the fourth pipeline is connected with the first flow guide cover.

6. The heating drying apparatus according to claim 5, wherein: The accommodate component further includes a second flow guide cover, the second flow guide cover is oppositely arranged with the first flow guide cover, the second rotating shafts are located at the open ends of the second flow guide cover, the filtering assembly is further communicated with the first accommodating cavity by a fifth pipeline, and the end of the fifth pipeline is connected with the second flow guide cover.

7. The heating and drying apparatus according to claim 1, wherein: Further including a clamping assembly, the heating assembly further includes a first end cover, the first end cover is located at one side of the second shell, the clamping assembly includes a first connecting plate and a second connecting plate, the first connecting plate is connected with the second shell, the first connecting plate is hinged with a connecting rod, the second connecting plate is connected with the first end cover, the second connecting plate includes an accommodating groove, the accommodating groove is located on the movement path of the connecting rod, the connecting rod is connected with a third pressing block, and the third pressing block can abut against the second connecting plate.

8. The heating drying apparatus according to claim 6, wherein: The filtering assembly includes a second end cover, and the fourth pipeline and the fifth pipeline are both connected with the second end cover.

9. The heating and drying apparatus according to claim 1, wherein: The first shell is further connected with a water collecting piece, the collecting end of the water collecting piece is provided with a plurality of through holes, and the water collecting piece penetrates through the first shell.

10. The heating and drying apparatus according to claim 1, wherein: Further including a support frame, the first shell, the fan, the second shell and the filtering assembly are all connected with the support frame.

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