Electronic component intelligent oven

Abstract

The present application relates to the field of electronic component baking, in particular to an electronic component intelligent baking oven, comprising a machine table and a baking oven fixed on the machine table; the baking oven is movably connected with a door; the machine table is provided with a heating pipe; the machine table is provided with a control panel; the machine table is provided with a plurality of trays; the lowermost tray is provided with four wheels; the machine table is provided with two limiting grooves; all the wheels are rollingly connected with the machine table; each limiting groove is matched with two wheels. The present application realizes vertical heat conduction through the stacking design of the trays and the heat conduction grooves, ensures the uniform distribution of hot air through the self-adaptive communication structure of the T-shaped plate and the reflow cavity, realizes heat energy recycling and waste gas purification while improving the drying efficiency of the electronic component body through the multi-stage processing of the air purifier and the UV purifier, significantly reduces the energy consumption and ensures the consistency of the drying quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic component baking, in particular to an electronic component intelligent baking oven. BACKGROUND

[0002] In the electronic component packaging process, the baking process plays a decisive role in the curing quality of the packaging material. In the prior art, the baking of electronic components is mainly to remove the solvent and residues in the packaging process, and to ensure the curing of the packaging material between the shell and the pin. The prior art has the following defects: 1. The traditional flat tray stacking mode causes the hot air circulation to be blocked, the heating intensity of the lower layer components is lower than that of the upper layer, and the multi-layer stacking further aggravates the heat shielding effect, which cannot balance the heat efficiency and temperature uniformity; 2. The heat field distribution in the oven is uneven, and the temperature difference between the edge and the center area is large. These problems directly affect the packaging air tightness and mechanical strength of the diode, the product failure rate is high, and the reliability of the diode product is seriously restricted. SUMMARY

[0003] In order to overcome the defects of the prior art diode baking technology that the flat tray stacking causes uneven hot air circulation and large difference in oven heat field distribution, which seriously affects the packaging air tightness and mechanical strength, the present application provides an electronic component intelligent baking oven.

[0004] The technical scheme of the present application is: an electronic component intelligent baking oven, comprising a machine table and a baking oven fixedly connected to the machine table; the baking oven is movably connected with a door; the machine table is provided with a heating pipe; the machine table is provided with a control panel; further comprising a tray; the machine table is provided with a plurality of trays; the lowermost tray is provided with four wheels; the machine table is provided with two limiting grooves; all the wheels are rollingly connected with the machine table; each limiting groove is matched with two wheels; the lowermost tray is detachably connected with four limiting rods; all the limiting rods are perpendicular to the tray; each tray is fixedly connected with a plurality of H-shaped racks; all the limiting rods are slidably connected with the trays except the lowermost tray; the upper part of the rack on each tray is in contact with the bottom of the adjacent tray except the uppermost tray; each tray is provided with a plurality of heat-conducting grooves; the upper part of each heat-conducting groove is across a plurality of racks; further comprising a pump; the baking oven is provided with the pump; the baking oven is provided with a reflux cavity; the air inlet of the pump is communicated with the baking oven; the air outlet of the pump is communicated with the reflux cavity; further comprising an elastic member; a plurality of elastic members are fixedly connected in the reflux cavity; the baking oven is slidably connected with a plurality of T-shaped plates; each T-shaped plate is fixedly connected with an adjacent elastic member; all the T-shaped plates penetrate through the front wall of the reflux cavity; each T-shaped plate is provided with a flow guide cavity; each flow guide cavity is provided with a reflux port communicated therewith; the reflux cavity is communicated with each reflux port; each tray is provided with a heat flow cavity; each heat flow cavity is provided with a through groove, and each through groove is sealingly matched with a T-shaped plate; each flow guide cavity is communicated with a heat flow cavity; a plurality of air holes are communicated between the heat flow cavity and the corresponding heat-conducting groove on each tray; a plurality of pin rods are fixedly connected at the rear part of each heat flow cavity; each T-shaped plate is in contact with an adjacent pin rod.

[0005] More preferably, further comprising an air purifier and a UV purifier; an air purifier for water and VOC adsorption is installed between the air inlet of the pump and the baking oven; a UV purifier for deep decomposition of residual VOC is installed between the air outlet of the pump and the reflux cavity.

[0006] More preferably, the side surface of the pin rod is covered with a foam protective sleeve.

[0007] More preferably, further comprising a guide strip; the machine table is fixedly connected with two guide strips; each guide strip corresponds to one limiting groove; all the guide strips are located in the baking oven.

[0008] More preferably, further comprising an arc-shaped piece; the door is provided with an arc-shaped piece; the arc-shaped piece is in contact with the lowermost tray.

[0009] More preferably, the limiting groove is an inclined groove with a lower front and a higher back.

[0010] More preferably, the air purifier comprises air chambers; two air chambers are opened in the air purifier; the front air chamber is communicated with the oven; the rear air chamber is communicated with the pump; a top cover is detachably connected to each air chamber; a filter box is detachably connected to each top cover; a channel for gas circulation is arranged between the filter box and the inner wall of the air chamber, a plurality of air permeation grooves are opened on the filter box; a flexible rubber material conduit is detachably connected between the two filter boxes; two clamping pins are connected to each filter box; a clamping ring is installed at both ends of the conduit, and each clamping ring is threadedly connected with a clamping pin, and the two ends of the conduit are fixed on the filter box by tightening the clamping pins.

[0011] Beneficial effects are: 1. The present application realizes vertical heat conduction by the stacking design of the material tray and the heat conduction groove, ensures the uniform distribution of hot air by the self-adaptive communication structure of the T-shaped plate and the reflux cavity, and realizes heat energy recycling and waste gas purification while improving the drying efficiency of the electronic component body by combining the multi-stage processing of the air purifier and the UV purifier, thereby significantly reducing energy consumption and ensuring drying quality consistency.

[0012] 2. By the double air chamber structure, the moisture and VOC are treated by the filter box with color-changing silica gel and activated carbon, and the modular and detachable filter box structure is adopted, so that the maintenance difficulty and operation cost are significantly reduced while ensuring the heat energy recycling efficiency of the oven, and the drying quality and environmental safety of the electronic component body are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the three-dimensional structure of the electronic component intelligent oven of the present application;

[0014] Figure 2 is a schematic diagram of the internal structure of the oven of the present application;

[0015] Figure 3 is a schematic diagram of the installation position of the electronic component body of the present application;

[0016] Figure 4 is a side view of the internal structure of the reflux cavity of the present application;

[0017] Figure 5 is a partial sectional view of the T-shaped plate of the present application;

[0018] Figure 6 is a side view of the internal structure of the air purifier of the present application;

[0019] Figure 7 is a schematic diagram of the installation position of the conduit of the present application.

[0020] In the drawing marks: 111-electronic component body, 1-machine table, 2-oven, 3-oven door, 4-tray, 5-wheel, 6-limiting rod, 7-tray, 8-pump, 9-air purifier, 10-UV purifier, 11-elastic element, 12-T-shaped plate, 13-pin rod, 14-guide strip, 15-arc-shaped piece, 101-limiting groove, 201-backflow cavity, 401-heat conduction groove, 402-heat flow cavity, 403-air hole, 1201-flow guide cavity, 1202-backflow port, 901-air chamber, 902-top cover, 903-filter box, 904-conduit, 905-needle. DETAILED DESCRIPTION

[0021] The application will be further described below with reference to the embodiments shown in the drawings.

[0022] The first embodiment: an electronic component intelligent baking oven, according to Figures 1-5 As shown, it comprises a machine table 1, an oven 2 and an oven door 3; the oven 2 is fixedly connected to the upper part of the machine table 1; the oven door 3 is hingedly connected to the front part of the oven 2; the machine table 1 is provided with a heating pipe, which is located in the oven 2; the machine table 1 is provided with a control panel, which is located to the right of the oven 2;

[0023] It also comprises a tray 4, a wheel 5, a limiting rod 6 and a tray 7; the machine table 1 is provided with a plurality of trays 4 distributed vertically; the lowermost tray 4 is installed with four wheels 5 distributed circumferentially; the machine table 1 is provided with two limiting grooves 101 distributed horizontally; all the wheels 5 are in rolling connection with the machine table 1; each limiting groove 101 is matched with two wheels 5; the lowermost tray 4 is detachably connected with four limiting rods 6 distributed circumferentially; all the limiting rods 6 are perpendicular to the tray 4; each tray 4 is fixedly connected with a plurality of trays 7 distributed uniformly; all the limiting rods 6 are in sliding connection with the trays 4 except the lowermost tray 4; the upper part of the tray 7 on each tray 4 except the uppermost tray 4 is in contact with the bottom of the adjacent tray 4; each tray 4 is provided with a plurality of heat conduction grooves 401 distributed uniformly; each heat conduction groove 401 is crossed by a plurality of trays 7 distributed uniformly above.

[0024] The tray 7 is in H shape, and adjacent trays 7 are used for suspending and limiting an electronic component body 111.

[0025] It also comprises a pump 8; the pump 8 is installed on the upper part of the oven 2; the oven 2 is provided with a backflow cavity 201 at the rear part; the air inlet of the pump 8 is in communication with the oven 2; the air outlet of the pump 8 is in communication with the backflow cavity 201.

[0026] The air purifier 9 and the UV purifier 10 are further included; the air purifier 9 is installed between the air inlet of the pump 8 and the oven 2; the air purifier 9 is used for water removal and VOC adsorption; the UV purifier 10 is installed between the air outlet of the pump 8 and the backflow cavity 201; the UV purifier 10 decomposes residual VOC through photocatalysis.

[0027] The elastic members 11, the T-shaped plates 12 and the pin rods 13 are further included; a plurality of elastic members 11 are fixedly connected in the backflow cavity 201; the elastic members 11 are springs; a plurality of T-shaped plates 12 distributed in up and down directions are slidingly connected at the rear part of the oven 2; each T-shaped plate 12 is fixedly connected with the adjacent elastic member 11; all the T-shaped plates 12 penetrate through the front wall of the backflow cavity 201; each T-shaped plate 12 is provided with a flow guide cavity 1201; each flow guide cavity 1201 is provided with a backflow opening 1202; the backflow cavity 201 and each backflow opening 1202 are in communication; each tray 4 is provided with a heat flow cavity 402; each heat flow cavity 402 is provided with a through slot at the rear part, and each through slot is in sealing fit with one T-shaped plate 12; each flow guide cavity 1201 is in communication with one heat flow cavity 402; a plurality of air holes 403 evenly distributed are in communication between the heat flow cavity 402 and the corresponding heat conduction slot 401 on each tray 4; a plurality of pin rods 13 distributed in left and right directions are fixedly connected at the rear part of each heat flow cavity 402; each T-shaped plate 12 is in contact with the adjacent pin rod 13.

[0028] The pin rods 13 are covered with foam protective sleeves on the side surfaces, so as to avoid the knocking damage of the T-shaped plates 12 when the T-shaped plates 12 are in contact with the pin rods 13.

[0029] The guide strips 14 are further included; two guide strips 14 distributed in left and right directions are fixedly connected to the machine table 1; each guide strip 14 corresponds to one limiting slot 101; all the guide strips 14 are located in the oven 2.

[0030] The arc-shaped plates 15 are further included; the arc-shaped plates 15 are installed at the lower part of the door 3; the arc-shaped plates 15 are in contact with the lowermost tray 4.

[0031] The limiting slots 101 are inclined slots with the front part being low and the rear part being high, so as to facilitate the cooperation of the wheels 5 with the guide strips 14 after the wheels 5 are guided to come out of the limiting slots 101.

[0032] The working steps of the above embodiment are as follows:

[0033] The bottom tray 4 with the wheels 5 is placed on the water platform, and then each electronic element body 111 is placed on the two H-shaped racks 7 through the external mechanical hand, like Figure 3As shown, until the shelves 7 are full, another tray 4 is placed on the water platform, and the above-mentioned placement process of the electronic component body 111 is repeated to fill the tray 4 with electronic component bodies 111, and the mechanical hand transfers the tray 4 to the stack above the lower tray 4, the four limiting rods 6 pass through the tray 4, until the bottom surface of the tray 4 is in contact with the lower shelf 7 in the shape of a goat horn, and the lower shelf 7 supports the upper tray 4 and the components. In this way, the above-mentioned operation is repeated to realize the stacking of the trays 4, wherein the positions of the heat-conducting grooves 401 on adjacent trays 4 correspond, so that when the electronic component body 111 is placed in the oven 2 for baking, the heat from below can be conducted upward through the heat-conducting grooves 401 that pass through up and down, and the electronic component body 111 is erected between the two shelves 7, the position of the electronic component body 111 is between adjacent trays 4, and the neatly arranged electronic component bodies 111 prevent the electronic component body 111 from completely blocking the upward flowing hot air flow, preventing uneven heating of the upper components.

[0034] After the above preparation work is completed, the box door 3 is opened, and the external mechanical hand is controlled to clamp the tray 4 with wheels 5, move the tray 4 so that each two wheels 5 are located in one limiting groove 101, and then control the external mechanical hand to push the tray 4 with wheels 5 to move in the limiting groove 101, ensuring that the wheels 5 travel in a straight line, and the limiting groove 101 does not affect the opening and closing of the box door 3. The limiting groove 101 is inclined, with the front being lower and the back being higher, so when the wheels 5 move in the limiting groove 101, the rear wheels 5 are flush with the top of the machine table 1 when they reach the rear end of the limiting groove 101, and the wheels 5 can smoothly leave the limiting groove 101. The rear wheels 5 engage with the two guide bars 14 in the oven 2, and the guide bars 14 limit the wheels 5 until all the wheels 5 enter the oven 2, and then the operator closes the box door 3, as shown. Figure 4 As shown, the electronic component body 111 is placed on the two H-shaped shelves 7, which not only supports the electronic component body 111, but also limits the electronic component body 111 to prevent the wheels 5 from falling off the shelves 7 when moving in the inclined limiting groove 101.

[0035] When the box door 3 is closed, the arc-shaped piece 15 on it contacts and pushes the lowermost tray 4 to move backward. When the tray 4 moves backward, the T-shaped plate 12 is inserted into the groove behind the tray 4, so that the flow guide cavity 1201 is in communication with the hot flow cavity 402. When the T-shaped plate 12 contacts the pin 13, the pin 13 on the tray 4 pushes the T-shaped plate 12 to move backward as the tray 4 moves backward, and the corresponding elastic member 11 is compressed, and the backflow port 1202 is in communication with the backflow cavity 201. The arrangement of the arc-shaped piece 15 can also stop the tray 4, avoiding the tray 4 being pushed forward by the elastic member 11 and the hot air blown out of the flow guide cavity 1201. When the tray 4 moves forward, the T-shaped plate 12 resets, and the backflow port 1202 is not in communication with the backflow cavity 201, hindering the heat circulation.

[0036] Then, the heating elements in the starting machine 1 are controlled to heat the inside of the oven 2. The hot air flows through the vertically penetrating heat guide groove 401 to form an upward channel, uniformly drying each layer of electronic component body 111. When the heat is concentrated at the upper part of the oven 2, the pump 8 is controlled to start, and the pump 8 pumps out the air at the upper part of the oven 2. When the pumped-out air passes through the air purifier 9, the air purifier 9 first removes water from the air, and then absorbs VOC. Then, the pump 8 pumps the air into the backflow cavity 201. Before entering the backflow cavity 201, the air also passes through the UV purifier 10, which decomposes and purifies the residual VOC in the air. Then, the air enters the backflow cavity 201. According to the number of stacked trays 4, the backflow port 1202 of the corresponding T-shaped plate 12 is in communication with the backflow cavity 201. The air in the backflow cavity 201 enters the flow guide cavity 1201 through the corresponding backflow port 1202, and then is sprayed out through the hot flow cavity 402 and the air hole 403. The electronic component body 111 is located above the corresponding heat guide groove 401, so that the backflow air ensures that the electronic component body 111 on each tray 4 is fully dried. Through air circulation, the waste heat is reused, and each position of the electronic component body 111 on each tray 4 can be precisely dried, reducing the drying time and improving the drying efficiency of the electronic component body 111.

[0037] The second embodiment is based on the first embodiment, according to Figures 1-7As shown, the air purifier 9 comprises air chambers 901, top covers 902, filter boxes 903, conduits 904 and clamping pins 905; two air chambers 901 are arranged in front and back in the air purifier 9; the front air chamber 901 is communicated with the oven 2; the back air chamber 901 is communicated with the pump 8; each air chamber 901 is detachably connected with a top cover 902; each top cover 902 is detachably connected with a filter box 903; the front filter box 903 is filled with color-changing silica gel particles; the back filter box 903 is filled with activated carbon particles; a passage for gas circulation is arranged between the filter box 903 and the inner wall of the air chamber 901, and a plurality of air-permeable grooves are arranged on the filter box 903; the two filter boxes 903 are detachably communicated with the conduit 904; the conduit 904 is a rubber hose; two clamping pins 905 are arranged on each filter box 903; a clamping ring is arranged at each end of the conduit 904, and each clamping ring is threadedly connected with a clamping pin 905, so that the two ends of the conduit 904 are fixed on the filter box 903 by rotating the clamping pin 905.

[0038] The working steps of the above embodiment are as follows:

[0039] On the basis of the first embodiment, when the air above the oven 2 is extracted, the water and VOC generated during the drying of the electronic component body 111 need to be treated by the air purifier 9 during the air circulation process. After the pump 8 is started, the air above the oven 2 enters the front air chamber 901, and the filter box 903 is arranged in the air chamber 901. The color-changing silica gel particles filled in the filter box 903 can absorb the water in the air entering the air chamber 901. Then, the air enters the back air chamber 901 through the conduit 904, and the filter box 903 filled with activated carbon is arranged in the air chamber 901. The VOC in the air is absorbed when the air passes through the filter box 903, so as to remove the water and VOC in the drying process. The residual VOC can also be photolyzed and purified by the UV purifier 10.

[0040] Wherein the air circulation in the oven 2, mainly for circulating heat in the oven 2, therefore the oven 2 air dehumidification, not using condensation mode, only using adsorption mode, reduce the loss of heat, and using the color change silica gel particles absorption mode, low cost, simple maintenance, but need regular maintenance, activated carbon also need regular replacement, so two filter box 903 is set to be detachable structure, replacement filter box 903, only need to remove the top cover 902, can extract the filter box 903 in the air chamber 901, and then rotate the filter box 903 from the top cover 902, can replace the color change silica gel or activated carbon particles in the filter box 903, only need to replace one group, then only need to rotate the corresponding needle 905 on the top cover 902, so that the needle 905 no longer fixed in the corresponding conduit 904 on the top cover 902, can extract the conduit 904 end in the top cover 902, and then can be lifted up the top cover 902, synchronous corresponding filter box 903 from the air chamber 901 can be extracted, and then replace the corresponding filter box 903 in the container can be reset.

[0041] The above is only the embodiment of the present application, not therefore limit the patent range of the present application, any equivalent structure or equivalent process transformation, or direct or indirect use in other related technical field, are also included in the patent protection scope of the present application.

Claims

1. An intelligent baking oven for electronic components, comprising a machine platform (1) and an oven (2) fixedly connected to the machine platform (1); the oven (2) is movably connected to a door (3); a heating tube is provided on the machine platform (1); the machine platform (1) is provided with a control panel; characterized in that: It also includes the material tray (4); The machine table (1) is provided with a plurality of material trays (4); The lowermost material tray (4) is provided with four wheels (5); The machine table (1) is provided with two limiting grooves (101); All the wheels (5) are in rolling connection with the machine table (1); Each limiting groove (101) is matched with two wheels (5); The lowermost material tray (4) is detachably connected with four limiting rods (6); All the limiting rods (6) are perpendicular to the material tray (4); Each material tray (4) is fixedly connected with a plurality of H-shaped material racks (7); All the limiting rods (6) are in sliding connection with the material trays (4) except the lowermost material tray (4); The upper part of the material rack (7) on each material tray (4) is in contact with the bottom of the adjacent material tray (4) except the uppermost material tray (4); Each material tray (4) is provided with a plurality of heat conduction grooves (401); The upper part of each heat conduction groove (401) is across a plurality of material racks (7); It also includes a pump (8); The oven (2) is provided with a pump (8); The oven (2) is provided with a backflow cavity (201); The air inlet of the pump (8) is communicated with the oven (2), and the air outlet is communicated with the backflow cavity (201); It also includes an elastic member (11); A plurality of elastic members (11) are fixedly connected in the backflow cavity (201); The oven (2) is in sliding connection with a plurality of T-shaped plates (12); Each T-shaped plate (12) is fixedly connected with the adjacent elastic member (11); All the T-shaped plates (12) penetrate through the front wall of the backflow cavity (201); Each T-shaped plate (12) is provided with a flow guide cavity (1201); Each flow guide cavity (1201) is provided with a backflow port (1202); The backflow cavity (201) and each backflow port (1202) are communicated; Each material tray (4) is provided with a heat flow cavity (402); Each heat flow cavity (402) is provided with a through groove, and each through groove is in sealing fit with a T-shaped plate (12); Each flow guide cavity (1201) is communicated with a heat flow cavity (402); A plurality of air holes (403) are communicated between the heat flow cavity (402) on each material tray (4) and the corresponding heat conduction groove (401); The rear part of each heat flow cavity (402) is fixedly connected with a plurality of pin rods (13); Each T-shaped plate (12) is in contact with the adjacent pin rod (13).

2. The electronic component intelligent baking oven according to claim 1, characterized in that: It also includes an air purifier (9) and a UV purifier (10); The air purifier (9) for removing water and VOC adsorption is installed between the air inlet of the pump (8) and the oven (2) to extract the air in the oven (2); The UV purifier (10) for photocatalytic decomposition of residual VOC is installed between the air outlet of the pump (8) and the backflow cavity (201).

3. The electronic component intelligent baking oven according to claim 2, characterized in that: The side surface of the pin rod (13) is covered with a foam protective sleeve.

4. The electronic component intelligent baking oven according to claim 3, characterized in that: It also includes a guide strip (14); The machine table (1) is fixedly connected with two guide strips (14); Each guide strip (14) corresponds to one limiting groove (101); All the guide strips (14) are located in the oven (2).

5. The electronic component intelligent baking oven according to claim 4, characterized in that: It also includes an arc-shaped sheet (15); The oven door (3) is provided with an arc-shaped sheet (15); The arc-shaped sheet (15) is in contact with the lowermost material tray (4).

6. The intelligent electronic component baking oven of any one of claims 1-5, wherein: The limiting groove (101) is an inclined groove with a front low and a rear high.

7. The electronic component intelligent baking oven according to claim 2, characterized in that: The air purifier (9) comprises air chambers (901); two air chambers (901) are formed in the air purifier (9); the front air chamber (901) is communicated with the oven (2); the rear air chamber (901) is communicated with the pump (8); one top cover (902) is detachably connected to each air chamber (901); one filter box (903) is detachably connected to each top cover (902); a passage for gas circulation is arranged between the filter box (903) and the inner wall of the air chamber (901), a plurality of air permeation grooves are formed in the filter box (903); a flexible rubber conduit (904) is detachably connected between the two filter boxes (903); two clamping pins (905) are connected to each filter box (903); a clamping ring is arranged at each end of the conduit (904), each clamping ring is threadedly connected with one clamping pin (905), and the two ends of the conduit (904) are fixed on the filter box (903) by screwing the clamping pins (905).

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