A horizontal line drying system
By adding a pressure switch between the heating chamber and the air knife to detect air pressure, the problem of dry burning in the circuit board drying device is solved, ensuring that the drying system operates under airflow conditions, avoiding accidents, and improving safety and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DINGXIN ELECTRONICS
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing circuit board drying equipment is prone to dry burning during the drying process, which may lead to malfunctions and accidents.
Add a pressure switch between the heating chamber and the upper and lower air knives to detect whether the blower is delivering stable air pressure, ensuring that the drying system only heats when there is airflow, and preventing dry burning when there is no airflow.
This effectively prevents the drying device from burning dry in the absence of airflow, reducing the occurrence of accidents such as malfunctions and fires, and improving the safety and reliability of the equipment.
Smart Images

Figure CN224534723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a horizontal drying system. Background Technology
[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.
[0003] A dryer is a device used to dry circuit boards. After the circuit board passes through the dryer, the upper and lower surfaces of the board are dried by hot air to achieve the purpose of drying the board surface and preventing oxidation. However, during the drying process, dry burning is prone to occur, which may lead to malfunctions and accidents.
[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a horizontal drying system to address the shortcomings of the existing technology.
[0006] This application discloses a horizontal drying system, including:
[0007] A blower, wherein the blower is provided with an air inlet and an air outlet for blowing out air, and the air inlet is provided with an air filter;
[0008] A heating box is used to heat the air source blown out by the blower, and the heating box is equipped with a wind pressure switch;
[0009] An upper air knife and a lower air knife are arranged facing each other to heat and dry the circuit board. The upper air knife and the lower air knife are connected to the blower and the heating box by hot air pipes.
[0010] The air pressure switch is equipped with an air pressure gauge to detect the air pressure inside the hot air duct.
[0011] Furthermore, in the aforementioned horizontal drying system, the output air pressure of the blower is 1.3MPa to 1.6MPa.
[0012] Furthermore, in the aforementioned horizontal drying system, the heating temperature range of the heating chamber is 165℃~175℃.
[0013] Furthermore, in the aforementioned horizontal drying system, both the upper and lower air knives are equipped with nozzles.
[0014] Furthermore, in the aforementioned horizontal drying system, there are multiple nozzles, and the nozzles of the upper and lower air knives provide hot air in directions distributed on the upper and lower surfaces of the circuit board.
[0015] In summary, the structure adopted in this embodiment of the present invention has the following advantages:
[0016] The horizontal drying system described in this utility model involves a blower connected to the heating chamber and the drying tank via a hot air pipe. This is to prevent damage to the blower and to prevent fires or other industrial accidents caused by the heating chamber malfunctioning and continuing to heat. This embodiment employs a novel air pressure switch between the heating chamber and the upper and lower air blades. When the horizontal drying system starts, the air pressure switch detects whether the blower is supplying stable air pressure to the heating chamber, determining whether the drying device should operate. When the air pressure gauge detects no air pressure, the heating chamber stops working and heating ceases, preventing the drying system from dry-burning in an airless state and reducing the risk of accidents due to drying device malfunctions.
[0017] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, the drawings provided are for reference and illustration only and are not intended to limit this utility model. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a front view of the horizontal drying system in an embodiment of this utility model.
[0020] The reference numerals in the above figures are as follows: 1. Blower; 2. Inlet filter; 3. Heating box; 4. Air pressure switch; 5. Upper air knife; 6. Lower air knife; 7. Hot air duct; 8. Nozzle. Detailed Implementation
[0021] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.
[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustration only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.
[0023] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various components or signals, these components or signals should not be limited by these terms. These terms are primarily used to distinguish one component from another, or one signal from another. Furthermore, the term "or" as used herein should, as appropriate, include any combination of one or more of the related listed items.
[0024] Reference Figure 1 As shown in the figure, this application discloses a horizontal drying system, including:
[0025] Blower 1, the blower 1 is provided with an air inlet and an air outlet for blowing out air source, and the air inlet is provided with an air inlet filter 2;
[0026] Heating box 3 is used to heat the air source blown out by blower 1, and heating box 3 is equipped with air pressure switch 4;
[0027] Upper air knife 5 and lower air knife 6 are arranged facing each other to heat and dry the circuit board. The upper air knife 5 and lower air knife 6 are connected to the blower 1 and the heating box 3 by a hot air pipe 7.
[0028] The air pressure switch 4 is equipped with an air pressure gauge to detect the air pressure inside the hot air pipe 7.
[0029] The main function of the inlet filter 2 is to filter impurities in the air, protecting the blower from corrosion by dust, impurities, and other particulate matter, thereby extending the service life of the blower 1 and maintaining air quality. The inlet filter 2 is a filtration device installed at the air inlet of the blower 1, playing a crucial role in the operation of the blower 1. The filter effectively blocks dust, particulate matter, and other impurities in the air, preventing these impurities from entering the blower 1 and thus avoiding damage. By filtering impurities from the air, the filter helps maintain the cleanliness of the inside of the blower 1, reducing the accumulation of dirt and impurities, thereby reducing the risk of blower 1 failure and extending its service life.
[0030] With the above structure, the blower 1 in the drying system is connected to the tank via the heating box 3 and the hot air pipe 7. This prevents damage to the blower and ensures that the heating box 3 does not continue heating due to malfunction, which could lead to fires or other industrial accidents. In this embodiment, a novel air pressure switch 4 is added between the heating box 3 and the upper air knife 5 and the lower air knife 6. When the horizontal drying system is started, the air pressure switch 4 detects whether the blower 1 is delivering stable air pressure into the heating box 3 to determine whether the drying device should operate. When the air pressure gauge detects no air pressure, the heating box 3 stops working and heating stops, preventing the drying system from dry burning in a state of no airflow and reducing the risk of accidents caused by malfunctions in the drying device.
[0031] Specifically, in this embodiment, the output air pressure of the blower 1 is 1.3MPa to 1.6MPa.
[0032] Specifically, in this embodiment, the heating temperature range of the heating box 3 is 165℃~175℃.
[0033] Specifically, in this embodiment, both the upper air knife 5 and the lower air knife 6 are provided with nozzles 8, and there are multiple nozzles 8. The nozzles 8 of the upper air knife 5 and the lower air knife 6 provide hot air in directions distributed on the upper and lower surfaces of the circuit board.
[0034] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the scope of the patent application of the present utility model. Therefore, all equivalent technical changes made using the contents of the present utility model specification and drawings are included in the scope of the patent application of the present utility model.
[0035] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0036] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.
Claims
1. A horizontal drying system, characterized in that, include: A blower, wherein the blower is provided with an air inlet and an air outlet for blowing out air, and the air inlet is provided with an air filter; A heating box is used to heat the air source blown out by the blower, and the heating box is equipped with a wind pressure switch; An upper air knife and a lower air knife are arranged facing each other to heat and dry the circuit board. The upper air knife and the lower air knife are connected to the blower and the heating box by hot air pipes. The air pressure switch is equipped with an air pressure gauge to detect the air pressure inside the hot air duct.
2. The horizontal drying system according to claim 1, characterized in that, The blower has an output air pressure of 1.3MPa to 1.6MPa.
3. The horizontal drying system according to claim 1, characterized in that, The heating temperature range of the heating chamber is 165℃~175℃.
4. The horizontal drying system according to claim 1, characterized in that, Both the upper air knife and the lower air knife are equipped with nozzles.
5. The horizontal drying system according to claim 4, characterized in that, The number of nozzles is multiple, and the nozzles of the upper and lower air knives provide hot air in directions distributed on the upper and lower surfaces of the circuit board.