Energy-saving high-temperature oven

Abstract

The utility model discloses an energy-saving high-temperature oven, and relates to the technical field of ovens. The oven comprises an oven shell, a sealing door is hinged to the oven shell, a transparent window is arranged on the sealing door, a control panel is arranged on one side of the sealing door, a heating component is arranged on the oven shell, and the heating component comprises an air heater arranged on one side of the oven shell and a main air plate arranged on one side of the interior of the oven shell. And the main gas plate is communicated with a top gas plate, a bottom gas plate and a middle gas plate. Waste gas can be firstly purified through the arranged exhaust component, then the waste gas with waste heat is introduced into the gas inlet end of the hot-air blower, the waste gas can continuously enter the interior of the oven to heat a PCB under the reheating action of the hot-air blower, and due to the fact that the waste gas has a certain temperature, heating can be faster, and the PCB can be heated more conveniently. The heating effect of the oven is improved, and more energy is saved in use.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to an energy-saving high-temperature oven. Background Art

[0002] A PCB circuit board, that is, a printed circuit board, is a provider of electrical connections for electronic components. Its main advantages are greatly reducing wiring and assembly errors, and improving the automation level and production labor rate. There are various types of existing PCB circuit boards. According to usage requirements, they can be divided into standard PCB boards and non-standard PCB boards, etc. In the actual application process, since the material of the PCB board is prone to moisture absorption, it is necessary to perform baking operations on the PCB board to varying degrees before use.

[0003] The Chinese utility model patent with the application number 201821973867.5 discloses an energy-saving constant-temperature heat energy circulation structure for a high-temperature oven. The above technical solution realizes the functions of sealing and full heating of the constant-temperature heat energy circulation structure by fixing a hollow heat-conducting plate and a mounting plate inside the outer box body, installing a heating plate and a blower at the bottom end of the hollow heat-conducting plate, installing a sealing door on the side wall of the outer box body, and arranging a positioning groove at the top of the mounting plate, and arranging an elastic heat-resistant plate and a PCB board inside the positioning groove, thereby improving the utilization rate of heat energy.

[0004] However, when the oven heats the PCB board during use, it is also necessary to discharge the waste gas outward. The above technical solution does not utilize the waste gas. The waste gas contains a lot of heat, and directly discharging it outward will cause a large amount of heat waste, and it is not energy-saving enough. At the same time, when the above technical solution heats the PCB board, it is difficult to directly apply the hot air to its upper and lower surfaces, resulting in heat waste and uneven heating of it.

[0005] Therefore, an energy-saving high-temperature oven is proposed. Content of the Utility Model

[0006] To solve the problems existing in the prior art, the utility model provides an energy-saving high-temperature oven.

[0007] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0008] An energy-saving high-temperature oven, comprising an oven housing, a sealing door is hinged on the oven housing, a transparent window is arranged on the sealing door, a control panel is arranged on one side of the sealing door, a heating component is arranged on the oven housing, the heating component includes a hot air blower arranged on one side of the oven housing and a main air plate arranged on one side inside the oven housing, the main air plate is communicated with a top air plate, a bottom air plate and a middle air plate, a plurality of exhaust pipes are arranged at the bottom end of the top air plate, the top end of the bottom air plate and the upper and lower sides of the middle air plate respectively, an exhaust component for discharging waste gas outwards is arranged on the oven housing, the exhaust component includes a confluence plate arranged on one side of the oven housing, the output end of the confluence plate is connected with an air purification device, the output end of the air purification device is connected with an exhaust duct, a heat-insulating cotton is wrapped outside the exhaust duct, two placing trays are arranged inside the oven housing, and a plurality of through holes are formed in the placing trays.

[0009] Furthermore, a heat-insulating layer and a heat-reflecting layer are arranged inside the oven housing.

[0010] Furthermore, a collecting plate is arranged on one side of the hot air blower, the input end of the hot air blower extends into the collecting plate, a flow sensor is arranged in the input pipe of the hot air blower, two shunt air inlet boxes are arranged on one side of the collecting plate, a filter screen is arranged inside each shunt air inlet box, a shunt pipe is connected between the two shunt air inlet boxes and the collecting plate, and a first electromagnetic valve is arranged on the shunt pipe.

[0011] Furthermore, the confluence plate and the oven housing are communicated with each other, and the two placing trays are respectively located above and below the middle air plate.

[0012] Furthermore, one end of the exhaust duct is connected with a collecting plate, a communicating shunt pipe is connected between each of the two shunt air inlet boxes and the collecting plate, and a second electromagnetic valve is arranged on the communicating shunt pipe.

[0013] Furthermore, the hot air blower, the flow sensor, the first electromagnetic valve, the air purification device and the second electromagnetic valve are all electrically connected to the control panel.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By arranging the exhaust component, the present utility model can first purify the waste gas, and then introduce the waste gas with residual heat into the air inlet end of the hot air blower. Under the action of the hot air blower for reheating, it can continue to enter the inside of the oven to heat the PCB board. Since the waste gas has a certain temperature, it can be heated more quickly, improving the heating efficiency of the oven and being more energy-saving in use.

[0016] 2. The utility model can filter air through the provided filter screen. Meanwhile, two shunt air inlet boxes are provided to facilitate air intake, and two filter screens are used for alternating filtration, avoiding excessive accumulation of dust on their surfaces, which may affect the air intake volume and cause unnecessary energy loss, thus making it more energy-efficient.

[0017] 3. The utility model evenly heats the upper and lower surfaces of the PCB board by the provided top air plate, bottom air plate and middle air plate, avoiding the disorderly flow of hot air, enabling the hot air to directly act on the PCB board and avoiding heat loss. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 is a first cross-sectional view of the utility model;

[0020] Figure 3 is a second cross-sectional view of the utility model;

[0021] Figure 4 is a third cross-sectional view of the utility model.

[0022] Figure 5 is an enlarged view of part A of the utility model.

[0023] Reference Numerals: 1. Oven housing; 101. Thermal insulation layer; 102. Heat insulation layer; 2. Sealed door; 201. Transparent window; 3. Control panel; 4. Heating component; 401. Hot air blower; 402. Collection plate; 403. Flow sensor; 404. Filter screen; 405. Shunt pipe; 406. First solenoid valve; 407. Shunt air inlet box; 408. Total air plate; 409. Top air plate; 410. Bottom air plate; 411. Middle air plate; 412. Exhaust pipe; 5. Exhaust component; 501. Confluence plate; 502. Air purification equipment; 503. Exhaust duct; 504. Heat insulating cotton; 505. Collection plate; 506. Connecting shunt pipe; 507. Second solenoid valve; 6. Placing tray; 601. Through hole. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Apparently, the described embodiments are some but not all of the embodiments of the utility model. Usually, the components of the embodiments of the utility model described and illustrated herein can be arranged and designed in various different configurations.

[0025] Accordingly, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0026] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further definition and explanation thereof are not required in subsequent drawings. In addition, the terms "first", "second", etc. are used only for descriptive distinction and should not be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does 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 thus should not be construed as a limitation of the present utility model.

[0028] Such as Figures 1-5As shown in the figure, an energy-saving high-temperature oven includes an oven housing 1, a sealing door 2 is hinged on the oven housing 1, a transparent window 201 is provided on the sealing door 2, a control panel 3 is provided on one side of the sealing door 2, a heating component 4 is provided on the oven housing 1, and the heating component 4 includes a hot air blower 401 provided on one side of the oven housing 1 and a main air plate 408 provided on one side inside the oven housing 1. A top air plate 409, a bottom air plate 410, and a middle air plate 411 are communicated with the main air plate 408. A plurality of exhaust pipes 412 are provided at the bottom end of the top air plate 409, the top end of the bottom air plate 410, and the upper and lower sides of the middle air plate 411. An exhaust component 5 for discharging waste gas outward is provided on the oven housing 1. The exhaust component 5 includes a converging plate 501 provided on one side of the oven housing 1. The output end of the converging plate 501 is connected to an air purification device 502. The output end of the air purification device 502 is connected to an exhaust duct 503. The outside of the exhaust duct 503 is wrapped with heat insulation cotton 504. Two placement trays 6 are provided inside the oven housing 1, and a plurality of through holes 601 are formed in the placement trays 6; specifically, when the hot air blower 401 is operating, hot air can be blown into the inside of the main air plate 408. After that, the hot air can enter the top air plate 409, the bottom air plate 410, and the middle air plate 411 through shunting, and finally can be sprayed out through the exhaust pipes 412, so as to quickly and evenly heat the PCB boards placed on the placement trays 6. During heating, the waste gas can be discharged outward into the converging plate 501. After that, under the action of the air purification device 502, the waste gas is purified. Then, the hot air after treatment can enter the inside of the collection plate 505 under the guiding action of the exhaust duct 503, and finally can enter the inside of the converging plate 402. Under the action of the hot air blower 401 for reheating, it can continue to enter the inside of the oven to heat the PCB boards. Since the waste gas has a certain temperature, it can be heated more quickly, improving the heating efficiency of the oven and being more energy-saving in use. When purifying the waste gas, a moisture-absorbing sponge can also be provided to adsorb the moisture in the air as needed, which will not be elaborated here.

[0029] As Figure 2 shown, a heat insulation layer 101 and a thermal insulation layer 102 are provided inside the oven housing 1; specifically, the provided heat insulation layer 101 can play a role in keeping the hot air inside the oven housing 1 warm, and the provided thermal insulation layer 102 can play a role in heat insulation to prevent the surface of the oven housing 1 from being damaged due to too high temperature.

[0030] As Figure 3 and 5As shown in the figure, a collecting plate 402 is provided on one side of the hot air blower 401. The input end of the hot air blower 401 extends into the interior of the collecting plate 402. A flow sensor 403 is provided in the input pipe of the hot air blower 401. Two shunt intake boxes 407 are provided on one side of the collecting plate 402. A filter net 404 is provided inside each shunt intake box 407. A shunt pipe 405 is connected between the two shunt intake boxes 407 and the collecting plate 402. A first solenoid valve 406 is provided on the shunt pipe 405. Specifically, the flow sensor 403 can detect the flow rate of the air drawn in by the hot air blower 401. When the detected flow rate is low, it will send a signal to the control panel 3, and the control panel 3 will control one of the first solenoid valves 406 to close and the other first solenoid valve 406 to open. Therefore, at this time, the filter net 404 inside the closed shunt intake box 407 can be cleaned, preventing excessive dust accumulation on its surface from affecting the air intake volume and avoiding unnecessary energy loss, making it more energy-efficient.

[0031] As Figure 4 shown in the figure, the confluence plate 501 and the oven housing 1 are interconnected. The two placement trays 6 are respectively located above and below the middle air plate 411. Specifically, when each PCB board placed on the placement tray 6 is heated, it can be evenly heated under the action of the top air plate 409, the bottom air plate 410, and the middle air plate 411, preventing the disorderly flow of hot air and directly applying the hot air to the PCB board to avoid heat loss.

[0032] As Figures 3-5 shown in the figure, one end of the exhaust duct 503 is connected to a collecting plate 505. A connecting shunt pipe 506 is connected between each of the two shunt intake boxes 407 and the collecting plate 505. A second solenoid valve 507 is provided on the connecting shunt pipe 506. Specifically, when the first solenoid valve 406 at the corresponding position is closed, the second solenoid valve 507 at the corresponding position will also be closed, facilitating the processed hot air to enter the interior of the oven housing 1. To facilitate the timely cleaning of the filter net 404, corresponding indicator lights can be set to light up when the corresponding first solenoid valve 406 and second solenoid valve 507 are opened, and the filter net 404 at the corresponding position can be cleaned according to the indicator lights that do not light up. No further elaboration will be made here.

[0033] As Figures 1-5 shown in the figure, the hot air blower 401, the flow sensor 403, the first solenoid valve 406, the air purification device 502, and the second solenoid valve 507 are all electrically connected to the control panel 3. Specifically, the hot air blower 401, the flow sensor 403, the first solenoid valve 406, the air purification device 502, and the second solenoid valve 507 are all existing technologies, so no further elaboration will be made on their principle structures and models here.

[0034] In summary: When the hot air blower 401 is operated, hot air can be blown into the interior of the main air plate 408. After that, the hot air is split and enters the interior of the top air plate 409, the bottom air plate 410, and the middle air plate 411. Finally, it can be ejected outward through the exhaust pipe 412, so as to quickly and evenly heat the PCB board placed on the placement tray 6. During heating, the waste gas can be discharged outward into the interior of the confluence plate 501. Then, under the action of the air purification device 502, the waste gas is purified. After that, the hot air after treatment can enter the interior of the collection plate 505 under the guiding action of the exhaust duct 503, and finally enter the interior of the confluence plate 402. Under the action of the hot air blower 401 for reheating, it can continue to enter the interior of the oven to heat the PCB board. Since the waste gas has a certain temperature, it can be heated more quickly, improving the heating efficiency of the oven and making it more energy-efficient in use.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving high-temperature oven, characterized in that: The oven shell (1) comprises an oven shell (1), a sealed door (2) is hingedly connected to the oven shell (1), a transparent window (201) is arranged on the sealed door (2), a control panel (3) is arranged on one side of the sealed door (2), a heating component (4) is arranged on the oven shell (1), the heating component (4) comprises a hot air blower (401) arranged on one side of the oven shell (1) and a main air plate (408) arranged on one side of the interior of the oven shell (1), a top air plate (409), a bottom air plate (410) and a middle air plate (411) are connected to the main air plate (408), the bottom end of the top air plate (409) and the top end of the bottom air plate (410) are connected to the main air plate (408), and the bottom end of the top air plate (409) and the top end of the bottom air plate (410) are connected to the main air plate (408). A plurality of exhaust pipes (412) are respectively arranged on the upper and lower sides of the middle gas plate (411), and an exhaust component (5) for discharging exhaust gas to the outside is arranged on the oven shell (1), and the exhaust component (5) comprises a manifold (501) arranged on one side of the oven shell (1), and the output end of the manifold (501) is connected to an air purification device (502), and the output end of the air purification device (502) is connected to an exhaust duct (503), and the outer side of the exhaust duct (503) is wrapped with heat insulation cotton (504), and two placement trays (6) are arranged inside the oven shell (1), and a plurality of through holes (601) are opened on the placement tray (6).

2. The energy-saving high-temperature oven according to claim 1, characterized in that: A heat preservation layer (101) and a heat insulating layer (102) are provided inside the oven shell (1).

3. The energy-saving high-temperature oven according to claim 1, characterized in that: A collecting plate (402) is provided on one side of the hot air blower (401), the input end of the hot air blower (401) extends to the inside of the collecting plate (402), a flow sensor (403) is provided in the input pipe of the hot air blower (401), two branch air inlet boxes (407) are provided on one side of the collecting plate (402), a filter net (404) is provided inside each of the branch air inlet boxes (407), a branch pipe (405) is connected between the two branch air inlet boxes (407) and the collecting plate (402), and a first solenoid valve (406) is provided on the branch pipe (405).

4. The energy-saving high-temperature oven according to claim 1, characterized in that: The manifold (501) and the oven shell (1) are in communication with each other, and the two placement plates (6) are respectively located above and below the middle gas plate (411).

5. The energy-saving high-temperature oven according to claim 3, characterized in that: One end of the exhaust duct (503) is connected to a collecting plate (505), and a connecting shunt pipe (506) is connected between each of the two shunt air intake boxes (407) and the collecting plate (505), and a second solenoid valve (507) is provided on the connecting shunt pipe (506).

6. The energy-saving high-temperature oven according to claim 5, characterized in that: The hot air blower (401), the flow sensor (403), the first solenoid valve (406), the air purification device (502) and the second solenoid valve (507) are all electrically connected to the control panel (3).

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