An oven

Abstract

This utility model discloses an oven, including a cabinet, a blower, and multiple heating elements. The cabinet has a left compartment connected to the baking cavity via a left air vent, and a right compartment connected to the baking cavity via a right air vent. The cabinet also has a top compartment, with its left and right ends connected to the upper ends of the left and right compartments, respectively. The cabinet has an air inlet pipe connected to the top compartment and an exhaust pipe connected to the upper part of the baking cavity. The blower includes two fan blades, both located within the top compartment and positioned laterally. The area between the two blades faces the air inlet pipe, and the two fan blades blow air to the left and right, respectively. Multiple heating elements are located in the left and right compartments. The oven can generate upward, rightward, rightward, upward and leftward, and leftward and upward hot airflows within the baking cavity, enabling multiple baking modes to meet the baking needs of different materials.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board technology, and in particular to an oven. Background Technology

[0002] In the manufacturing process of printed circuit boards, drying equipment is frequently used to bake materials such as substrates and PP boards to facilitate subsequent processing and improve product yield. Drying equipment or ovens generally use heated air to create hot air, which is then blown onto the materials to heat and dry them. However, different materials require different hot air flow directions, meaning different baking modes. Currently, the baking modes of drying equipment are relatively limited and cannot meet the diverse baking requirements of different materials. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an oven with multiple baking modes.

[0004] An oven according to an embodiment of the present invention includes a housing, a blower, and multiple heating elements. The housing has a baking cavity. The front wall of the housing has an inlet / outlet and a sealing door, the sealing door being used to open or seal the inlet / outlet. A left interlayer is located on the left side of the housing, communicating with the baking cavity through multiple left air vents. A right interlayer is located on the right side of the housing, communicating with the baking cavity through multiple right air vents. A top interlayer is located on the top side of the housing, with its left and right ends communicating with the upper ends of the left and right interlayers, respectively. An air inlet pipe communicating with the top interlayer is located at the top of the housing, and an exhaust pipe communicating with the upper part of the baking cavity is located at the top of the housing. The blower includes two fan blades, both located within the top interlayer, distributed left and right. The area between the two fan blades faces the air inlet pipe, and the two fan blades are used to blow air to the left and right, respectively. Multiple heating elements are located in the left and right interlayers.

[0005] It has at least the following beneficial effects:

[0006] The oven can generate upward, rightward, rightward and upward, leftward and leftward and upward hot air flows within the baking cavity, giving it multiple baking modes to meet the baking needs of different materials. The oven is suitable for baking a variety of materials.

[0007] According to some embodiments of this utility model, the heating element is a U-shaped electric heating tube, and the plane in which the heating element is located forms an angle with the vertical plane.

[0008] According to some embodiments of this utility model, it further includes a top plate, a left side plate, and a right side plate. The top wall of the box and the top plate are detachably connected, and a top interlayer is formed between the top wall of the box and the top plate. The left wall of the box and the left side plate are detachably connected, and a left interlayer is formed between the left wall of the box and the left side plate. A plurality of left air vents are disposed on the left side plate. The right wall of the box and the right side plate are detachably connected, and a right interlayer is formed between the right wall of the box and the right side plate. A plurality of right air vents are disposed on the right side plate.

[0009] According to some embodiments of the present invention, the blower further includes two motors, both of which are located outside the housing, and the output ends of the motors extend into the top interlayer and are connected to the fan blades via transmission.

[0010] According to some embodiments of this utility model, a temperature sensor is provided inside the baking cavity.

[0011] According to some embodiments of the present invention, the air inlet pipe is provided with a first control valve, and the air outlet pipe is provided with a second control valve.

[0012] According to some embodiments of this utility model, the sealing door is locked to the box body by a latch to seal the baking cavity. The latch includes a latch seat, a handle and a hook body. The latch seat is disposed on the box body. One end of the handle is rotatably connected to the sealing door. The middle section of the handle is connected to the hook body through a pivot. The hook body is used to hook the latch seat.

[0013] According to some embodiments of this utility model, both ends of the rotating shaft are provided with through holes, the central axis of the through holes is perpendicular to the central axis of the rotating shaft, the hook body is U-shaped, and both ends of the hook body are respectively inserted through the two through holes. Both ends of the hook body are threaded with two nuts, all of which abut against the rotating shaft. The middle part of the hook body is used to hook into the buckle groove on the buckle seat.

[0014] According to some embodiments of the present invention, the sealing door includes a left door and a right door. The left end of the left door and the right end of the right door are hinged to the front wall of the housing. The left door is provided with a pressure block, and the left door presses the right door against the front wall of the housing through the pressure block, so that the left door and the right door together seal the inlet and outlet.

[0015] According to some embodiments of this utility model, sealing elements are provided between the left door and the right door, between the left door and the side wall of the inlet / outlet, and between the right door and the side wall of the inlet / outlet.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the latch in an embodiment of the present utility model;

[0021] Icon labels:

[0022] Box body 100, left mezzanine 110, right mezzanine 120, top mezzanine 130, air inlet pipe 140, air outlet pipe 150, second control valve 151;

[0023] Sealed door 200, left door 210, right door 220;

[0024] Fan blades 300;

[0025] Lock 400, buckle base 410, handle 420, hook body 430, swivel shaft 440, nut 450;

[0026] Heating element 500;

[0027] Top plate 600;

[0028] Left side panel 700;

[0029] Right side panel 800. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figure 1 and Figure 2 This utility model discloses an oven, including a box body 100, a blower device and multiple heating elements 500. The box body 100 is provided with a baking cavity. The front wall of the box body 100 is provided with an inlet and an outlet and a sealing door 200. The sealing door 200 is used to open or seal the inlet and outlet. When the sealing door 200 is opened, the material to be baked can be placed in the baking cavity or the material in the baking cavity can be transported to the outside of the box body 100 through the inlet and outlet.

[0034] The left side of the enclosure 100 has a left mezzanine 110, which is connected to the baking cavity through multiple left air vents. The right side of the enclosure 100 has a right mezzanine 120, which is also connected to the baking cavity through multiple right air vents. The top side of the enclosure 100 has a top mezzanine 130, whose left and right ends are connected to the upper ends of the left mezzanine 110 and the right mezzanine 120, respectively. The top of the enclosure 100 has an inlet that connects to the top mezzanine 130. The top of the housing 100 is provided with an exhaust pipe 150 that communicates with the upper part of the baking cavity; the blower includes two fan blades 300, both of which are located in the top interlayer 130. The two fan blades 300 are distributed on the left and right sides, and the area between the two fan blades 300 is directly opposite the air inlet pipe 140. The two fan blades 300 distributed on the left and right sides are used to blow air to the left and right respectively; multiple heating elements 500 are respectively located in the left interlayer 110 and the right interlayer 120.

[0035] When the two fan blades 300 distributed to the left and right are working, and the air inlet pipe 140 and the air outlet pipe 150 are both open, the two fan blades 300 draw air from outside the box 100 into the top interlayer 130 through the air inlet pipe 140 and blow it to the left and right respectively, thus forming two airflows. One airflow flows along the direction of the left interlayer 110, the left air outlet, the baking cavity and the air outlet pipe 150, and the other airflow flows along the direction of the right interlayer 120, the right air outlet, the baking cavity and the air outlet pipe 150. The heating element 500 in the left interlayer 110 and / or the heating element 500 in the right interlayer 120 are turned on, forming an upward hot airflow in the baking cavity, which bakes the material in the baking cavity.

[0036] When the fan blade 300 on the left side of the top interlayer 130 is working, and the air inlet pipe 140 and the air outlet pipe 150 are both closed, the air in the box 100 circulates along the direction of the top interlayer 130, the left interlayer 110, the left air outlet, the baking cavity, the right air outlet, the right interlayer 120 and the top interlayer 130. The heating element 500 in the left interlayer 110 is turned on, forming a hot air flow that flows to the right in the baking cavity. The hot air flow that flows to the right bakes the material in the baking cavity.

[0037] When the fan blade 300 on the left side of the top interlayer 130 is working, and both the air inlet pipe 140 and the air outlet pipe 150 are open, air flows along the direction of the air inlet pipe 140, the top interlayer 130, the left interlayer 110, the left air outlet, the baking cavity, and the air outlet pipe 150. This opens the heating element 500 in the left interlayer 110, forming a hot airflow that flows to the right and upward in the baking cavity. The hot airflow that flows to the right and upward bakes the material in the baking cavity.

[0038] When the fan blade 300 on the right side of the top interlayer 130 is working, and the air inlet pipe 140 and the air outlet pipe 150 are both closed, the air in the box 100 circulates along the direction of the top interlayer 130, the right interlayer 120, the right air outlet, the baking cavity, the left air outlet, the left interlayer 110 and the top interlayer 130. The heating element 500 in the right interlayer 120 is turned on, forming a hot air flow to the left in the baking cavity. The hot air flow to the left bakes the material in the baking cavity.

[0039] When the fan blade 300 on the right side of the top interlayer 130 is working, and both the air inlet pipe 140 and the air outlet pipe 150 are open, air flows along the direction of the air inlet pipe 140, the top interlayer 130, the right interlayer 120, the right air outlet, the baking cavity, and the air outlet pipe 150, opening the heating element 500 in the right interlayer 120, forming a hot airflow flowing to the left and upward in the baking cavity, which bakes the material in the baking cavity.

[0040] The oven can generate upward, rightward, rightward and upward, leftward and leftward and upward hot air flows within the baking cavity, giving it multiple baking modes to meet the baking needs of different materials. The oven is suitable for baking a variety of materials.

[0041] Understandably, the number of air inlet ducts 140 and exhaust ducts 150 can be determined according to the size of the housing 100. The air inlet duct 140 is connected to the middle of the top interlayer 130. The exhaust duct 150 is connected to the middle or side area of ​​the top of the baking cavity.

[0042] Reference Figure 2 In some embodiments, the air flows downward in both the left interlayer 110 and the right interlayer 120. The heating element 500 is a U-shaped heating tube. The plane in which the heating element 500 is located forms an angle with the vertical plane, which is beneficial for the heating element 500 to fully contact the air flowing in the left interlayer 110 / right interlayer 120, thereby facilitating faster heating of the air.

[0043] Reference Figure 2In some embodiments, the oven further includes a top plate 600, a left side plate 700, and a right side plate 800. The top wall of the oven body 100 and the top plate 600 are detachably connected, forming a top interlayer between the top wall of the oven body 100 and the top plate 600. The left wall of the oven body 100 and the left side plate 700 are detachably connected, forming a left interlayer 110 between the left wall of the oven body 100 and the left side plate 700. Multiple left air vents are disposed on the left side plate 700. The right wall of the oven body 100 and the right side plate 800 are detachably connected, forming a right interlayer 120 between the right wall of the oven body 100 and the right side plate 800. Multiple right air vents are disposed on the right side plate 800.

[0044] The housing 100, top plate 600, left side plate 700, and right side plate 800 are separate structures, facilitating the installation of the left interlayer 110, top interlayer 130, and right interlayer 120. The housing 100 is detachably connected to the top plate 600, left side plate 700, and right side plate 800, allowing for easy removal of the left interlayer 110, top interlayer 130, and right interlayer 120 for inspection and replacement of the heating element 500.

[0045] In this embodiment, the left side plate 700, the top plate 600 and the right side plate 800 can be connected in sequence to form an inverted U-shaped structure, and the left interlayer 110, the top interlayer 130 and the right interlayer 120 can be connected in sequence to form an inverted U-shaped space.

[0046] In some embodiments, the blower also includes two motors (not shown in the figure), both of which are located outside the housing 100, with their output ends extending into the top interlayer 130 and being drivenly connected to the fan blades 300.

[0047] The motor is connected to the outer wall of the housing 100 via a bracket. Positioning the motor outside the housing 100 facilitates heat dissipation and ensures its efficiency and lifespan. The top wall of the housing 100 has a mounting hole through which the motor's output terminal passes, allowing the motor's output terminal to be connected to the fan blades 300.

[0048] The top plate 600 is equipped with a light (not shown in the figure) to illuminate the baking cavity so that materials can be arranged in the baking cavity and the condition of the materials in the baking cavity can be observed.

[0049] In some embodiments, a temperature sensor is provided inside the oven cavity to detect the temperature of the air inside the oven cavity in order to control the operation of the blower and the heating element 500, thereby controlling the temperature of the air inside the oven cavity.

[0050] Reference Figure 1In some embodiments, the air inlet pipe 140 is provided with a first control valve (not shown in the figure), which can close and adjust the opening of the air inlet pipe 140, thereby controlling the flow rate and velocity of the air inlet pipe 140. The exhaust pipe 150 is provided with a second control valve 151, which can close and adjust the opening of the exhaust pipe 150, thereby controlling the flow rate and velocity of the exhaust pipe 150.

[0051] In this embodiment, there are two exhaust pipes 150, which are distributed on the left and right sides. The two exhaust pipes 150 are connected to the left side of the top of the baking cavity and the right side of the top of the baking cavity, respectively. Each of the two exhaust pipes 150 is equipped with a second control valve 151.

[0052] Reference Figure 1 In some embodiments, the sealing door 200 is locked to the box body 100 by a latch 400, and the sealing door 200 seals the baking cavity. By opening the sealing door 200, materials to be baked can be placed into the baking cavity or materials can be removed from the baking cavity.

[0053] Reference Figure 1 and Figure 3 The latch 400 includes a latch seat 410, a handle 420, and a hook 430. The latch seat 410 is mounted on the housing 100. One end of the handle 420 is rotatably connected to the sealing door 200. The middle section of the handle 420 is connected to the hook 430 via a pivot 440. The hook 430 is used to hook the latch seat 410. When the handle 420 is rotated toward the latch seat 410, the handle 420 can drive the hook 430 to move toward the latch seat 410, and the hook 430 disengages from the latch seat 410, thereby opening the latch 400 and opening the sealing door 200, or pressing the sealing door 200 against the sealing door. When the handle 420 is rotated away from the latch seat 410, the handle 420 can drive the hook 430 to move away from the latch seat 410, and the hook 430 is fastened onto the latch seat 410, thereby closing the latch 400 and sealing the baking cavity through the sealing door 200.

[0054] In some embodiments, both ends of the rotating shaft 440 are provided with through holes, the central axis of the through holes is perpendicular to the central axis of the rotating shaft 440, the hook body 430 is U-shaped, and both ends of the hook body 430 are respectively inserted through the two through holes. Both ends of the hook body 430 are threaded with two nuts 450, and all nuts 450 abut against the rotating shaft 440. The middle part of the hook body 430 is used to hook onto the buckle groove on the buckle seat 410. By rotating the nuts 450, the position of the hook body 430 on the handle 420 can be adjusted to ensure that the hook body 430 can be accurately hooked onto the buckle seat 410, while also ensuring the sealing performance of the sealing oven cavity of the sealing door 200.

[0055] Reference Figure 1In some embodiments, the sealing door 200 includes a left door 210 and a right door 220. The left end of the left door 210 and the right end of the right door 220 are hinged to the front wall of the housing 100. The left door 210 is provided with a pressure block, and the left door 210 presses the right door 220 against the front wall of the housing 100 through the pressure block, so that the left door 210 and the right door 220 seal the inlet and outlet together.

[0056] One end of the handle 420 is rotated and connected to the left door 210 of the sealing door 200. By locking the left door 210, the right door 220 can be locked.

[0057] In some embodiments, seals are provided between the left door 210 and the right door 220, between the left door 210 and the side wall of the inlet / outlet, and between the right door 220 and the side wall of the inlet / outlet. The seals can prevent air leakage between the left door 210 and the right door 220, between the left door 210 and the side wall of the inlet / outlet, and between the right door 220 and the side wall of the inlet / outlet, thereby reducing heat loss in the oven cavity, maintaining the stability of the air temperature in the oven cavity, and reducing air temperature fluctuations.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An oven, characterized in that, include: The box (100) has an internal baking cavity. The front wall of the box (100) is provided with an inlet and an outlet and a sealing door (200). The sealing door (200) is used to open or seal the inlet and outlet. The left side of the box body (100) is provided with a left interlayer (110), which is connected to the baking cavity through multiple left air vents. The right side of the box body (100) is provided with a right interlayer (120), which is connected to the baking cavity through multiple right air vents. The top side of the box body (100) is provided with a top interlayer (130), which is connected to the upper end of the left interlayer (110) and the upper end of the right interlayer (120) at its left and right ends, respectively. The top of the box body (100) is provided with an air inlet pipe (140) connected to the top interlayer (130), and the top of the box body (100) is provided with an exhaust pipe (150) connected to the upper part of the baking cavity. The blower includes two fan blades (300), both of which are located within the top interlayer (130). The two fan blades (300) are distributed left and right, and the area between the two fan blades (300) faces the air inlet pipe (140). The two fan blades (300) distributed left and right are used to blow air to the left and right respectively. Multiple heating elements (500) are disposed in the left interlayer (110) and the right interlayer (120).

2. An oven according to claim 1, characterized in that The heating element (500) is a U-shaped electric heating tube, and the plane in which the heating element (500) is located forms an angle with the vertical plane.

3. An oven according to claim 1 or 2, characterized in that Also includes: The top plate (600) is detachably connected to the top wall of the box (100), and the top interlayer is formed between the top wall of the box (100) and the top plate (600). The left side panel (700) is detachably connected to the left wall of the housing (100), and the left side panel (700) forms the left interlayer (110) between the left wall of the housing (100) and the left side panel (700). Multiple left air vents are respectively disposed on the left side panel (700). The right side panel (800) is detachably connected to the right wall of the housing (100), and the right side panel (800) forms the right interlayer (120) between the right wall of the housing (100) and the right side panel (800). Multiple right air vents are disposed on the right side panel (800).

4. An oven according to claim 1, characterized in that The blower also includes two motors, both of which are located outside the housing (100). The output ends of the motors extend into the top interlayer (130) and are connected to the fan blades (300) in a transmission manner.

5. An oven according to claim 1 or 4, characterized in that The baking cavity is equipped with a temperature sensor.

6. An oven according to claim 1, characterized in that The air inlet pipe (140) is provided with a first control valve, and the air outlet pipe (150) is provided with a second control valve (151).

7. An oven according to claim 1, characterized in that The sealing door (200) is locked onto the box (100) by a latch (400) to seal the baking cavity. The latch (400) includes a latch seat (410), a handle (420) and a hook (430). The latch seat (410) is located on the box (100). One end of the handle (420) is rotatably connected to the sealing door (200). The middle section of the handle (420) is connected to the hook (430) through a pivot (440). The hook (430) is used to hook the latch seat (410).

8. An oven according to claim 7, characterized in that Both ends of the rotating shaft (440) are provided with through holes, and the central axis of the through holes is perpendicular to the central axis of the rotating shaft (440). The hook body (430) is U-shaped, and both ends of the hook body (430) are respectively inserted through the two through holes. Both ends of the hook body (430) are threaded with two nuts (450), and all the nuts (450) abut against the rotating shaft (440). The middle part of the hook body (430) is used to hook into the buckle groove on the buckle seat (410).

9. An oven according to claim 7 or 8, characterised in that The sealing door (200) includes a left door (210) and a right door (220). The left end of the left door (210) and the right end of the right door (220) are hinged to the front wall of the housing (100). The left door (210) is provided with a pressure block. The left door (210) presses the right door (220) against the front wall of the housing (100) through the pressure block, so that the left door (210) and the right door (220) seal the inlet and outlet together.

10. An oven according to claim 9, characterized in that Sealing elements are provided between the left door (210) and the right door (220), between the left door (210) and the side wall of the inlet / outlet, and between the right door (220) and the side wall of the inlet / outlet.

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