A PCB baking device
By incorporating an electric heating device and air duct assembly into the PCB board baking apparatus, uniform hot air distribution is achieved. Combined with exhaust gas treatment, this solves the problems of PCB board damage and untreated exhaust gas, enabling uniform baking and exhaust gas purification, thereby reducing energy consumption and health risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU JIERIJIA TECHNOLOGY CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-05
AI Technical Summary
Existing PCB baking equipment lacks a uniform heating structure, which leads to damage to the PCB boards, and the untreated exhaust gas inside the baking oven affects health.
The oven is designed with a top plate slot, side plate slots and a rear plate slot. It is equipped with an electric heating device, combined with an air duct assembly and a blower to achieve uniform distribution of hot air. The exhaust gas is purified by an exhaust pipe and an exhaust gas treatment device, and the purified hot air is recycled.
It achieves uniform baking of PCB boards, avoids damage, and effectively purifies the exhaust gas inside the baking oven, reducing energy consumption and health risks.
Smart Images
Figure CN224329667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB board processing equipment technology, and in particular to a PCB board baking device. Background Technology
[0002] Chinese Patent No. CN213556233U discloses an energy-saving baking device for PCB boards, including an oven, a heat exchanger, an exhaust gas treatment tank, and a cleaning mechanism. The heat exchanger is equipped with an air inlet pipe and a filter. An exhaust gas inlet pipe and an air outlet pipe are provided between the oven and the heat exchanger. An exhaust gas outlet pipe is provided between the heat exchanger and the exhaust gas treatment tank. High-temperature exhaust gas in the oven enters the heat exchanger through the exhaust gas inlet pipe. External air enters the heat exchanger through the air inlet pipe to exchange heat with the exhaust gas. The preheated air enters the oven through the air outlet pipe. The cooled exhaust gas enters the exhaust gas treatment tank through the exhaust gas outlet pipe. The exhaust gas treated in the exhaust gas treatment tank is discharged through the exhaust gas outlet. The cleaning mechanism is used to automatically clean the heat exchanger. It consumes less electricity and reduces the thermal pollution of the exhaust gas to the environment.
[0003] This device can be used for baking PCB boards, reducing the oven's energy consumption and treating exhaust gas to reduce pollution. However, it lacks a uniform heating and baking structure, which can easily damage the PCB. Furthermore, it can only treat the exhaust gas, leaving exhaust gas inside the oven, which can affect the health of workers. Therefore, an improvement was proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of a uniform heating and baking structure, which can easily lead to PCB damage, and the fact that only exhaust gas can be treated while exhaust gas remains inside the baking oven, potentially affecting the health of workers. Therefore, this invention proposes a PCB baking device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design a PCB baking device, including a baking oven. The baking oven has side plate slots on both the left and right sides, a rear plate slot on the rear side, and a top plate slot on the top. Multiple sets of electric heating devices are fixedly installed inside the side plate slots, the rear plate slot, and the top plate slot. Multiple sets of air inlet and outlet slots are opened on the inner wall of the baking oven, and an air duct assembly is provided on the outer wall of the baking oven.
[0007] The duct assembly includes an air intake main pipe communicating with the rear plate groove, an air intake top pipe communicating with the top plate groove fixedly connected above the air intake main pipe, air intake side pipes communicating with the side plate grooves fixedly connected to the left and right sides of the air intake main pipe, and a blower fixedly installed on the rear side of the air intake main pipe.
[0008] Preferably, the bottom of the baking oven is provided with a bottom plate groove, the upper end surface of the bottom plate groove is provided with multiple sets of air inlet and outlet grooves communicating with the baking oven, and the outer wall of the baking oven is provided with a circulation component that cooperates with the bottom plate groove.
[0009] The circulation component includes an exhaust gas treatment device, on which exhaust pipes and circulation pipes are fixedly installed on the left and right sides, respectively. The exhaust pipes and circulation pipes are connected to the left and right sides of the bottom plate groove.
[0010] Preferably, a funnel is provided at one end of the exhaust pipe connected to the baking oven, and a fan that cooperates with the exhaust pipe is fixedly installed inside the baking oven.
[0011] Preferably, an outlet is fixedly installed on the rear side of the exhaust gas treatment device, and an exhaust gas collection device is fixedly connected to the outer end of the outlet.
[0012] Preferably, multiple sets of sliding seats are fixedly connected to the inner walls of both sides of the baking oven. A baking plate is placed on the upper surface of the two sets of sliding seats that are symmetrical on the left and right. An abutment plate that slides against the baking plate is fixedly connected to the upper surface of the sliding seat.
[0013] Preferably, a limiting groove is formed inside the sliding seat, and a limiting block is fixedly connected to the lower end face of the baking plate, with the limiting block slidably connected inside the limiting groove.
[0014] Preferably, a handle is fixedly connected to the upper surface of the outer side of the baking plate.
[0015] The PCB baking device proposed in this utility model has the following advantages: by setting a top plate groove, side plate groove and rear plate groove, and installing an electric heating device inside, and through the cooperation of a blower and air duct assembly, hot air can be blown out from various positions of the baking oven through the air inlet and outlet slots. This ensures that the baking oven can bake the PCB board evenly, greatly avoiding uneven temperature and preventing damage to the PCB board due to baking. Through the action of the fan, the exhaust gas inside the baking oven can enter the exhaust gas treatment device through the exhaust pipe for filtration. The purified hot air can then re-enter the baking oven through the circulation pipe, while the purified exhaust gas can be discharged from the outlet for centralized treatment, which can avoid and reduce baking energy consumption.
[0016] The baking plate can be supported and restricted by the sliding seat and the abutment plate. The baking plate can be pulled out by the cooperation of the limiting groove and the limiting block, which makes it convenient to take out the PCB board. The baking plate can be easily pulled out by the handle. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a PCB baking device proposed in this utility model;
[0018] Figure 2 This is a cross-sectional view of a PCB baking device proposed in this utility model.
[0019] Figure 3 This is a longitudinal cross-sectional structural diagram of a PCB board baking device proposed in this utility model;
[0020] Figure 4 This is an exploded structural diagram of a PCB board baking device proposed in this utility model;
[0021] Figure 5 This utility model proposes a baking device for PCB boards. Figure 4 Enlarged view of a portion of point A in the middle.
[0022] In the diagram: 1. Baking oven; 101. Top plate groove; 102. Side plate groove; 103. Rear plate groove; 104. Bottom plate groove; 2. Main air intake pipe; 201. Side air intake pipe; 202. Top air intake pipe; 3. Exhaust gas treatment device; 301. Exhaust pipe; 302. Circulation pipe; 303. Funnel; 304. Exhaust outlet; 4. Electric heating device; 5. Baking plate; 501. Handle; 502. Limiting block; 6. Sliding seat; 601. Abutment plate; 602. Limiting groove; 7. Air inlet and outlet grooves; 8. Fan. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 A PCB baking device includes a baking oven 1. Side plate grooves 102 are provided on both the left and right sides of the baking oven 1, a rear plate groove 103 is provided on the rear side of the baking oven 1, and a top plate groove 101 is provided on the top of the baking oven 1. Multiple sets of electric heating devices 4 are fixedly installed inside the side plate grooves 102, the rear plate groove 103 and the top plate groove 101. Multiple sets of air inlet and outlet grooves 7 are provided on the inner wall of the baking oven 1, and an air duct assembly is provided on the outer wall of the baking oven 1.
[0025] The air duct assembly includes an air intake main pipe 2 that communicates with the rear plate groove 103. An air intake top pipe 202 that communicates with the top plate groove 101 is fixedly connected to the top of the air intake main pipe 2. Air intake side pipes 201 that communicate with the side plate groove 102 are fixedly connected to the left and right sides of the air intake main pipe 2. A blower is fixedly installed on the rear side of the air intake main pipe 2. With the cooperation of the blower and the air duct assembly, hot air can be blown out from various positions of the baking oven 1 through the air inlet and outlet grooves 7. This ensures that the baking oven 1 can bake the PCB board evenly, greatly avoiding uneven temperature and preventing the PCB board from being damaged by baking.
[0026] The bottom of the baking oven 1 is provided with a bottom plate groove 104, and the upper end surface of the bottom plate groove 104 is provided with multiple sets of air inlet and outlet grooves 7 that communicate with the baking oven 1. The outer wall of the baking oven 1 is provided with a circulation component that cooperates with the bottom plate groove 104.
[0027] The circulation component includes an exhaust gas treatment device 3. An exhaust pipe 301 and a circulation pipe 302 are fixedly installed on the left and right sides of the exhaust gas treatment device 3. The exhaust pipe 301 and the circulation pipe 302 are respectively connected to the left and right sides of the bottom plate groove 104. The exhaust gas inside the baking oven 1 can enter the exhaust gas treatment device 3 through the exhaust pipe 301 and be filtered. In this way, the purified hot gas can re-enter the baking oven 1 through the circulation pipe 302, which can avoid reducing baking energy consumption.
[0028] A funnel 303 is provided at one end of the exhaust pipe 301 connected to the baking oven 1. A fan 8 that cooperates with the exhaust pipe 301 is fixedly installed inside the baking oven 1. By setting the fan 8, the exhaust gas inside the baking oven 1 can be discharged.
[0029] An outlet 304 is fixedly installed on the rear side of the exhaust gas treatment device 3. An exhaust gas collection device is fixedly connected to the outer end of the outlet 304. The exhaust gas generated during purification can be discharged from the outlet 304 for centralized treatment.
[0030] Multiple sets of sliding seats 6 are fixedly connected to the inner walls of the left and right sides of the baking oven 1. Baking plates 5 are placed on the upper surfaces of the two sets of sliding seats 6 that are symmetrical on the left and right. Abutment plates 601 that slide against the baking plates 5 are fixedly connected to the upper surfaces of the sliding seats 6. The baking plates 5 can be supported and restricted by setting the sliding seats 6 and the abutment plates 601.
[0031] The sliding seat 6 has a limiting groove 602 inside, and the lower end face of the baking plate 5 is fixedly connected to the limiting block 502. The limiting block 502 is slidably connected inside the limiting groove 602. Through the cooperation of the limiting groove 602 and the limiting block 502, the baking plate 5 can be pulled out, which facilitates the removal of the PCB board.
[0032] A handle 501 is fixedly connected to the upper surface of the outer side of the baking plate 5, which allows the baking plate 5 to be easily pulled out.
[0033] Operating mode: During operation, the baking plate 5 can be pulled out using handle 501, and the PCB board to be baked can be placed on the baking plate 5. The top plate groove 101, side plate groove 102, and rear plate groove 103 are equipped with an electric heating device 4. With the cooperation of the blower and air duct assembly, hot air can be blown out from various positions of the baking oven 1 through the air inlet and outlet ducts 7. This ensures that the baking oven 1 can bake the PCB board evenly, greatly avoiding uneven temperature and preventing damage to the PCB board due to baking. Through the action of fan 8, the exhaust gas inside the baking oven 1 can enter the exhaust gas treatment device 3 through the exhaust pipe 301 for filtration. The purified hot air can then re-enter the baking oven 1 through the circulation pipe 302, while the purified exhaust gas can be discharged through the outlet 304 for centralized treatment, which can avoid and reduce baking energy consumption.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A baking apparatus for PCB boards, comprising a baking oven (1), characterized in that: The baking oven (1) has side plate grooves (102) on both the left and right sides, a rear plate groove (103) on the rear side, and a top plate groove (101) on the top. Multiple sets of electric heating devices (4) are fixedly installed inside the side plate grooves (102), the rear plate groove (103), and the top plate groove (101). Multiple sets of air inlet and outlet grooves (7) are opened on the inner wall of the baking oven (1), and air duct assemblies are provided on the outer wall of the baking oven (1). The duct assembly includes an intake main pipe (2) communicating with the rear plate groove (103), an intake top pipe (202) communicating with the top plate groove (101) is fixedly connected above the intake main pipe (2), intake side pipes (201) communicating with the side plate groove (102) are fixedly connected to the left and right sides of the intake main pipe (2), and a blower is fixedly installed on the rear side of the intake main pipe (2).
2. The PCB baking apparatus according to claim 1, characterized in that: The bottom of the baking oven (1) is provided with a bottom plate groove (104), and the upper end surface of the bottom plate groove (104) is provided with multiple sets of air inlet and outlet grooves (7) that communicate with the baking oven (1). The outer wall of the baking oven (1) is provided with a circulation component that cooperates with the bottom plate groove (104). The circulation component includes a waste gas treatment device (3), and an exhaust pipe (301) and a circulation pipe (302) are fixedly installed on the left and right sides of the waste gas treatment device (3). The exhaust pipe (301) and the circulation pipe (302) are respectively connected to the left and right sides of the bottom plate groove (104).
3. The PCB baking apparatus according to claim 2, characterized in that: A funnel (303) is provided at one end of the exhaust pipe (301) connected to the baking oven (1), and a fan (8) that cooperates with the exhaust pipe (301) is fixedly installed inside the baking oven (1).
4. The PCB baking apparatus according to claim 3, characterized in that: The exhaust gas treatment device (3) has an outlet (304) fixedly installed on its rear side, and an exhaust gas collection device is fixedly connected to the outer end of the outlet (304).
5. The PCB baking apparatus according to claim 1, characterized in that: The baking oven (1) has multiple sets of sliding seats (6) fixedly connected to the inner walls on both the left and right sides. The upper surfaces of the two sets of sliding seats (6) symmetrically placed with baking plates (5) are provided. The upper surfaces of the sliding seats (6) are fixedly connected with a contact plate (601) that slides against the baking plates (5).
6. The PCB baking apparatus according to claim 5, characterized in that: The sliding seat (6) has a limiting groove (602) inside, and the lower end face of the baking plate (5) is fixedly connected to a limiting block (502), which is slidably connected to the inside of the limiting groove (602).
7. The PCB baking apparatus according to claim 6, characterized in that: A handle (501) is fixedly connected to the upper surface of the outer side of the baking plate (5).