An easy-to-dissipate drying oven

Abstract

This invention discloses a heat-dissipating oven, comprising a chamber, an aging rack disposed within the chamber, and a cross-flow fan. The cross-flow fan includes an impeller and an air outlet opposite to the impeller, the impeller being parallel to the aging rack. The aging rack includes multiple horizontal plates, side plates, and a loading frame for loading the aging boards. The multiple horizontal plates are fixed parallel to each other on the side plates. The loading frame is positioned between two horizontal plates in the same horizontal direction, and air ducts are provided between two adjacent horizontal plates in the same vertical direction. The air outlet is opposite to all air ducts. This design ensures uniform airflow to each layer of aging boards, preventing damage to localized test chips.

Description

Technical Field

[0001] This invention relates to the field of semiconductor testing, and more particularly to a heat dissipation oven. Background Technology

[0002] In the field of semiconductor testing, ovens are commonly used. The oven contains multiple aging plates, and each aging plate has multiple semiconductors (chips) to be tested. After the oven heats the chips to be tested, it is often necessary to cool them down when installing or removing the chips or adjusting the temperature. Therefore, heat dissipation is crucial.

[0003] In existing ovens, heat dissipation is achieved by blowing air onto the aging rack simultaneously using two or more axial fans. Since the air emitted by axial fans is easily dispersed, the air emitted by multiple fans may interfere with each other, resulting in different air intakes for each layer of aging boards on the aging rack. This leads to uneven temperatures on each layer of aging boards, causing localized overheating of the semiconductor under test, which in turn burns out the chip under test. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a heat dissipation oven that can make the air intake of each layer of aging board uniform and prevent local chip under test from being burned.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A heat dissipation oven includes a chamber, an aging rack disposed within the chamber, and a cross-flow fan. The cross-flow fan includes an impeller and an air outlet opposite to the impeller. The impeller is parallel to the aging rack. The aging rack includes multiple horizontal plates, side plates, and a loading frame for loading aging boards. The multiple horizontal plates are fixed parallel to each other on the side plates. The loading frame is disposed between two horizontal plates in the same horizontal direction. An air duct is disposed between two adjacent horizontal plates in the same vertical direction. The air outlet is opposite to all air ducts.

[0007] Preferably, the heat dissipation oven further includes a fan frame, which is fixedly connected to the side of the aging rack away from the impeller. A first fan and a second fan are provided on the fan frame, and both the first fan and the second fan are arranged opposite to the air duct.

[0008] Preferably, the housing is provided with multiple ventilation openings, and the center line of each ventilation opening coincides with the center line of the first fan or the center line of the second fan.

[0009] Preferably, the first fan is an intake fan, the second fan is an outlet fan, and the wind speed of the first fan and the wind speed of the second fan are equal.

[0010] Preferably, a third fan is also provided on the fan frame, and the first fan, the second fan and the third fan are fixed on the fan frame at even intervals.

[0011] Preferably, the first and third fans are air inlet fans, the second fan is an air outlet fan, and the sum of the wind speed of the first fan and the wind speed of the third fan is equal to the wind speed of the second fan.

[0012] Preferably, the first fan, the second fan, and the third fan are all outlet fans, and the sum of the wind speeds of the first fan, the second fan, and the third fan is equal to the sum of the wind speeds of the cross-flow fan.

[0013] Preferably, the housing includes an upper compartment and a lower compartment, and the cross-flow fan also includes a motor and a belt. The motor drives the impeller to rotate and generate air through the belt. The motor and the belt are both located in the upper compartment, and the aging rack and the impeller are both located in the lower compartment.

[0014] Preferably, the horizontal plate is vertically connected to the side plate, and the loading frame is slidably connected to the two horizontal plates in the horizontal direction.

[0015] Preferably, the height of the impeller, the height of the air outlet, and the height of the aging rack are all equal.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This easy-to-heat drying oven is equipped with a cross-flow fan, which can blow out uniform air to each layer of aging board without interference from different airflows, thus preventing the chips under test on the aging board from burning out due to uneven heat dissipation. Attached Figure Description

[0018] Figure 1 This is a schematic plan view of one embodiment of the heat dissipation oven of the present invention;

[0019] Figure 2 This is a schematic plan view of another embodiment of the heat dissipation oven of the present invention;

[0020] Figure 3 This is a schematic plan view of another embodiment of the heat dissipation oven of the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the aging rack of the present invention;

[0022] Figure 5 This is a schematic diagram of the planar structure of the aging rack of the present invention.

[0023] In the diagram: 100, heat dissipation oven; 10, cabinet; 11, upper shelf; 12, lower shelf; 13, vent; 14, partition; 20, cross-flow fan; 21, impeller; 22, air outlet; 23, motor; 24, belt; 30, aging rack; 31, storage frame; 32, side panel; 33, horizontal panel; 34, air duct; 40, fan frame; 41, first fan; 42, second fan; 43, third fan. Detailed Implementation

[0024] To better understand the specific technical solutions, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "lateral," "longitudinal," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-4 As shown, the present invention discloses a heat dissipation oven 100, which includes a box body 10, an aging rack 30 disposed within the box body 10, and a cross-flow fan 20. The cross-flow fan 20 includes an impeller 21 and an air outlet 22 disposed opposite to the impeller 21. The impeller 21 is parallel to the aging rack 30. The aging rack 30 includes multiple horizontal plates 33, side plates 32, and a loading frame 31 for loading aging boards. The multiple horizontal plates 33 are fixed parallel to each other on the side plates 32. The loading frame 31 is disposed between two horizontal plates 33 in the same horizontal direction. An air duct 34 is disposed between two adjacent horizontal plates 33 in the same vertical direction. The air outlet 22 is disposed opposite to all air ducts 34.

[0027] In the above embodiment, the impeller 21 is parallel to the aging rack 30, which allows the air to blow onto the aging rack 30 to the maximum extent, thus better dissipating heat from the aging boards on the aging rack. Multiple horizontal plates 33 are fixed parallel to each other on the side plate 32, so that the carrying frames 31 are all horizontally arranged on the aging rack 30. An air duct 34 is provided between two adjacent horizontal plates 33 in the same vertical direction, allowing the air emitted by the cross-flow fan 20 to contact the aging boards with the maximum contact area through the air duct 34 for heat dissipation. This easy-to-heat-dissipate oven 100 is equipped with a cross-flow fan 20, which blows uniform air from the air outlet 22. The air then passes through the air duct 34 to dissipate heat from each layer of aging boards, and the airflow received by each layer of aging boards is not disturbed, ensuring uniform heat dissipation for each aging board and preventing burnout due to insufficient airflow.

[0028] In a preferred embodiment, such as Figure 2 As shown, the heat dissipation oven 100 also includes a fan frame 40, which is fixedly connected to the side of the aging rack 30 away from the impeller 21. A first fan 41 and a second fan 42 are mounted on the fan frame 40, both of which are positioned opposite to the air duct 34. The chamber 10 has multiple ventilation openings 13, the centerline of which coincides with the centerline of either the first fan 41 or the second fan 42. Preferably, the first fan 41 is an inlet fan, and the second fan 42 is an outlet fan, with the wind speed of the first fan 41 being equal to the wind speed of the second fan 42.

[0029] In the above embodiment, the fan frame 40 is a ventilated cuboid frame. The first fan 41 and the second fan 42 can cool the aging board again through the air duct 34. The first fan 41 and the second fan 42 can also exhaust the high-temperature gas in the housing 10 through the vent 13, which can close when the aging board heats up. When the first fan 41 is the inlet fan and the second fan 42 is the outlet fan, the air emitted by the first fan 41 to the aging board can be drawn out by the second fan 42, forming a circulating airflow, which can effectively cool the aging board. The first fan 41, the second fan 42, and the cross-flow fan 20 can be used simultaneously, or one or two of them can be used. When all three fans are started at the same time, in order to avoid interference from the wind speed of the cross-flow fan 20, the wind speed of the cross-flow fan 20 should be reduced to less than half of the wind speed of the first fan 41.

[0030] In a preferred embodiment, such as Figure 3As shown, a third fan 43 is also provided on the fan frame 40, and the first fan 41, the second fan 42, and the third fan 43 are evenly spaced and fixed on the fan frame 40. Preferably, the first fan 41 and the third fan 43 are air inlets, the second fan 42 is an air outlet, and the sum of the wind speed of the first fan 41 and the wind speed of the third fan 43 is equal to the wind speed of the second fan 42.

[0031] In the above embodiment, the first fan 41, the second fan 42, and the third fan 43 can effectively cool the aging board. When the first fan 41 and the third fan 43 are the inlet fans and the second fan 42 is the outlet fan, the first fan 41 and the third fan 43 blow air onto the aging board. The second fan 42 is positioned between the first fan 41 and the third fan 43, so the air blown out by the first fan 41 and the third fan 43 can be drawn away by the second fan 42, forming a circulating airflow. This avoids interference between different airflows and effectively cools the aging board. In this embodiment, to avoid interference from the wind speed of the cross-flow fan 20, the wind speed of the cross-flow fan 20 should be reduced to less than one-fourth of the wind speed of the first fan 41, or even the cross-flow fan 20 should not be activated.

[0032] In another implementation, such as Figure 3 As shown, the first fan 41, the second fan 42 and the third fan 43 are all outlet fans, and the sum of the wind speeds of the first fan 41, the second fan 42 and the third fan 43 is equal to the sum of the wind speeds of the cross-flow fan 20.

[0033] In the above embodiment, the first fan 41, the second fan 42, the third fan 43 and the cross-flow fan 20 are all started simultaneously. The air blown out by the cross-flow fan 20 can be directly discharged by the first fan 41, the second fan 42 and the third fan 43 to form a direct current airflow to cool the aging board.

[0034] like Figures 3-5 As shown, in a preferred embodiment, the housing 10 includes an upper shelf 11 and a lower shelf 12. The cross-flow fan 20 further includes a motor 23 and a belt 24. The motor 23 drives the impeller 21 to rotate and generate airflow via the belt 24. Both the motor 23 and the belt 24 are located within the upper shelf 11, and the aging rack 30 and the impeller 21 are located within the lower shelf 12. The horizontal plate 33 is vertically connected to the side plate 32, and the carrying frame 31 is slidably connected to the two horizontal plates 33. The height of the impeller 21, the height of the air outlet 22, and the height of the aging rack 30 are all equal.

[0035] In the above embodiment, the upper shelf 11 and the lower shelf 12 are separated by a partition 14. The motor 23 and the belt 24 are located on the upper shelf 11 to prevent the aging board from generating heat that could burn out the motor. A rotating shaft is also provided on the impeller 21. The motor 23 drives the rotating shaft to rotate via the belt 24, which in turn drives the impeller 21 to rotate. To facilitate the installation and removal of the carrying frame 31, the carrying frame 31 is slidably connected to the horizontal plate 33. To ensure that each aging board receives better airflow from the cross-flow fan 20, the height of the impeller 21, the height of the air outlet 22, and the height of the aging rack 30 are all equal. To make the cross-flow fan 20 and the aging rack 30 more stable, the lower ends of both the cross-flow fan 20 and the aging rack 30 are fixed to the bottom wall of the housing 10.

[0036] In summary, this easy-to-cool oven 100 can uniformly cool the aging board by setting up a cross-flow fan 20, a first fan 41, a second fan 42 and a third fan 43, thereby preventing the temperature on the aging board from becoming too high in some areas. In addition, the cross-flow fan 20 can blow out air that is not easily disturbed, thereby preventing the chip under test from being burned.

[0037] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A heat-dissipating drying oven, characterized in that: The oven includes a housing, an aging rack housed within the housing, and a cross-flow fan. The cross-flow fan includes an impeller and an air outlet opposite to the impeller, the impeller being parallel to the aging rack. The aging rack includes multiple horizontal plates, side plates, and a loading frame for loading aging boards. The horizontal plates are fixed parallel to each other on the side plates. The loading frame is positioned between two horizontal plates in the same horizontal direction. Air ducts are provided between two adjacent horizontal plates in the same vertical direction. The air outlet is opposite to all air ducts. The oven also includes a fan frame, which is fixedly connected to the side of the aging rack away from the impeller. A first fan and a second fan are mounted on the fan frame, both of which are opposite to the air ducts. The housing is provided with multiple ventilation openings, the center line of each ventilation opening coincides with the center line of the first fan or the center line of the second fan. A third fan is also provided on the fan frame. The first fan, the second fan and the third fan are evenly spaced and fixed on the fan frame. The first fan and the third fan are air inlets, and the second fan is an air outlet. The sum of the wind speed of the first fan and the wind speed of the third fan is equal to the wind speed of the second fan. When the first fan and the third fan blow air onto the aging board, the second fan is positioned between the first fan and the third fan. In this way, the air blown out from the first fan and the third fan can be drawn away by the second fan to form a circulating airflow.

2. The heat-dissipating oven according to claim 1, characterized in that: The first fan is an intake fan, and the second fan is an outlet fan, and the wind speed of the first fan and the wind speed of the second fan are equal.

3. The heat-dissipating oven according to claim 1, characterized in that: The first fan, the second fan, and the third fan are all exhaust fans. The sum of the wind speeds of the first fan, the second fan, and the third fan is equal to the sum of the wind speeds of the cross-flow fan. The first fan, the second fan, the third fan, and the cross-flow fan are all started simultaneously. The air blown out by the cross-flow fan can be directly discharged by the first fan, the second fan, and the third fan.

4. The heat-dissipating oven according to claim 1, characterized in that: The housing includes an upper compartment and a lower compartment. The cross-flow fan also includes a motor and a belt. The motor drives the impeller to rotate and generate air through the belt. The motor and the belt are both located in the upper compartment, and the aging rack and the impeller are both located in the lower compartment.

5. The heat-dissipating oven according to claim 1, characterized in that: The horizontal plate is vertically connected to the side plate, and the loading frame is slidably connected to the two horizontal plates in the horizontal direction.

6. The heat-dissipating oven according to claim 1, characterized in that: The height of the impeller, the height of the air outlet, and the height of the aging rack are all equal.

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