CN216421356U

CN216421356U - Reflow oven for welding electronic product

Info

Publication number: CN216421356U
Application number: CN202122705443.9U
Authority: CN
Inventors: 肖杰; 吴日雄; 吴仁君; 陈思贤; 魏国军
Original assignee: Huizhou Runzhida Electronic Technology Co ltd
Current assignee: Huizhou Runzhida Electronic Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-05-03
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses a be used for electronic product welded reflow oven, the induction cooker comprises a cooker bod, the one end of furnace body is provided with the induced draft district, one side of heating area is provided with the heat preservation district, one side in heat preservation district is provided with the district of distinguishing again, the both sides at heat preservation district top all are provided with coupling mechanism, coupling mechanism contains the connecting pipe, the connecting box, two support columns, two connecting holes and a plurality of exhaust hole, be provided with transmission device on the connecting pipe, transmission device contains the rolling circle, the rotation post, a plurality of rotating vane, the locating lever, the locating piece, rolling gear, axis of rotation and motor, the rolling circle is connected with the rolling gear meshing. The utility model discloses utilize coupling mechanism and transmission device matched with to set up the mode, through two connecting pipes, the waste heat energy in the district of being convenient for flow again is carried to the heat preservation district in, and waste heat energy in the heat preservation district is carried to the heating area in, improves the utilization ratio to the resource, through rotating the leaf, makes the better transmission of steam, improves steam transmission efficiency.

Description

Reflow oven for welding electronic product

Technical Field

The utility model relates to a reflow oven field, in particular to be used for electronic product welded reflow oven.

Background

A reflow oven is also called a reflow soldering oven, and is a device required by SMT process in the electronic technology industry, the reflow oven process realizes the soldering of mechanical and electrical connection between the soldering terminal or pin of a surface-mounted component and the soldering pad of a printed board by remelting paste soft solder pre-distributed on the soldering pad of the printed board, the reflow oven is the last key process of the surface mounting technology, is real-time process control, has complex process change, relates to a plurality of process parameters, and the setting of a temperature curve is most important and directly determines the reflow soldering quality.

The existing reflow oven for electronic CPB welding cannot reasonably utilize heat energy when in use, cannot reasonably utilize the heat energy of a high-temperature area, causes large consumption of resources and influences the production cost of electronic products, and therefore, the reflow oven for electronic product welding is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reflow oven for electronic product welding to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a reflow furnace for welding electronic products comprises a furnace body, wherein one end of the furnace body is provided with a suction area, one side of the suction area is provided with a heating area, one side of the heating area is provided with a heat preservation area, one side of the heat preservation area is provided with a re-flow area, and two sides of the top of the heat preservation area are provided with connecting mechanisms;

the connecting mechanism comprises a connecting pipe, a connecting box, two supporting columns, two connecting holes and a plurality of exhaust holes, a transmission mechanism is arranged on the connecting pipe, the transmission mechanism comprises a rotating ring, a rotating column, a plurality of rotating blades, a positioning rod, a positioning block, a rotating gear, a rotating shaft and a motor, and the rotating ring is meshed with the rotating gear and is connected with the rotating gear.

Preferably, two ends of the two connecting pipes are fixedly and alternately connected with the tops of the warming area, the heat preservation area and the re-flow area respectively, and the rotating ring is fixedly connected with the outer wall of the rotating column through a support rod.

Preferably, a plurality of the rotating blades are fixedly connected with the outer wall of the rotating column in an annular array, and the positioning rod is rotatably inserted and connected with the middle part of the rotating column through a bearing.

Preferably, one end of the positioning rod is fixedly connected with the top of the positioning block, and the bottom end of the positioning block is fixedly connected with the inner wall of the connecting pipe.

Preferably, one end of the rotating shaft is in transmission connection with the output end of the motor, and the other end of the rotating shaft is fixedly inserted and connected with the middle part of the rotating gear.

Preferably, the bottom of the connecting box is fixedly connected with the top of the connecting pipe, and the two connecting boxes are respectively and fixedly connected with the tops of the heat preservation area and the reflow area through two supporting columns.

Preferably, a cooling area is arranged on one side of the re-flow area, and the exhaust holes are respectively formed in the top of the connecting box.

The utility model discloses a technological effect and advantage:

(1) the utility model discloses utilize coupling mechanism and transmission mechanism matched with setting mode, through two connecting pipes, be convenient for the interior waste heat energy of distinguished again to be carried to the heat preservation district in, the waste heat energy of heat preservation district is carried to the heating area in, improves the utilization ratio to the resource, through rotating the leaf, makes better transmission of steam, improves steam transmission efficiency;

(2) the utility model discloses utilize and rotate circle and running gear matched with mode that sets up, through running gear and the being connected of rotating the circle, be convenient for to the stable rotation of rotating the post, make steam can not influence the normal use of motor simultaneously, improve the safety in utilization and the life of reflow oven.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the schematic side sectional structure view of the connection pipe of the present invention.

Fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. a furnace body; 2. an air draft area; 3. a temperature rising zone; 4. a heat preservation area; 5. a re-flow area; 6. a cooling zone; 7. a connecting mechanism; 701. a connecting pipe; 702. a connection box; 703. a support pillar; 704. connecting holes; 705. an exhaust hole; 8. a transport mechanism; 801. rotating the ring; 802. rotating the column; 803. rotating the blades; 804. positioning a rod; 805. positioning blocks; 806. a rotating gear; 807. a rotating shaft; 808. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a reflow oven for welding electronic products as shown in figures 1-3, which comprises an oven body 1, wherein one end of the oven body 1 is provided with an air draft area 2, one side of the air draft area 2 is provided with a temperature rising area 3, one side of the temperature rising area 3 is provided with a heat preservation area 4, one side of the heat preservation area 4 is provided with a reflow area 5, the inner cavity of the reflow area 5 is provided with a heating plate, so that the high-temperature welding of a PCB is facilitated, one side of the reflow area 5 is provided with a cooling area 6, so that the welded PCB is cooled and discharged, and two sides of the top of the heat preservation area 4 are provided with connecting mechanisms 7;

the connecting mechanism 7 comprises a connecting pipe 701, a connecting box 702, two supporting columns 703, two connecting holes 704 and a plurality of exhaust holes 705, two ends of the two connecting pipes 701 are fixedly and alternately connected with the tops of the temperature rising region 3, the heat preservation region 4 and the re-flow region 5 respectively, the connecting pipes 701 are of a U-shaped structure, heat can be transmitted in sequence conveniently, recycling of waste heat of an inner cavity of the re-flow region 5 is improved, the bottom of the connecting box 702 is fixedly connected with the top of the connecting pipes 701, the two connecting holes 704 are arranged at the bottom of the connecting box 702 and the top of the connecting pipes 701 respectively, the two connecting boxes 702 are fixedly connected with the tops of the heat preservation region 4 and the re-flow region 5 respectively through the two supporting columns 703, and the plurality of exhaust holes 705 are arranged at the top of the connecting box 702 respectively, so that redundant waste gas can be discharged through the exhaust holes 705;

a transmission mechanism 8 is arranged on the connecting pipe 701, the transmission mechanism 8 comprises a rotating ring 801, a rotating column 802, a plurality of rotating blades 803, a positioning rod 804, a positioning block 805, a rotating gear 806, a rotating shaft 807 and a motor 808, a tooth socket is formed in the outer wall of the rotating ring 801, and the rotating ring 801 is meshed with the rotating gear 806, so that the rotating ring 801 can stably rotate through the rotation of the rotating gear 806;

the rotating ring 801 is fixedly connected with the outer wall of the rotating column 802 through a support rod, a plurality of rotating blades 803 are fixedly connected with the outer wall of the rotating column 802 in an annular array, so that the rotating ring 801 rotates, the rotating column 802 and the rotating blades 803 can rotate, the transmission efficiency of hot air in the connecting pipe 701 is improved conveniently, the positioning rod 804 is rotatably inserted and connected with the middle part of the rotating column 802 through a bearing, one end of the positioning rod 804 is fixedly connected with the top of the positioning block 805, the bottom end of the positioning block 805 is fixedly connected with the inner wall of the connecting pipe 701, the positioning block 805 and the positioning rod 804 are used for limiting the position of the rotating column 802 conveniently, the stability of the position of the rotating column 802 is improved, one end of the rotating shaft 807 is in transmission connection with the output end of the motor 808, the other end of the rotating shaft 807 is fixedly inserted and connected with the middle part of the rotating gear 806, the motor 808 is fixedly connected with the outer wall of the connecting box 702, and the rotating shaft 807 is rotatably inserted and connected with the outer wall of the connecting box 702 through a bearing, the safety of the motor 808 is improved, the service life of the reflow oven is prolonged, and the energy conservation is improved.

The utility model discloses the theory of operation:

when in use, the PCB is placed on a conveying mechanism of the furnace body 1, the PCB to be welded is heated through the air draft area 2 and the temperature rising area 3 in sequence, the heat preservation area 4 is used for preserving heat, the reflow area 5 is used for high-temperature welding, finally the PCB is cooled through the cooling area 6, residual heat energy in the reflow area 5 is conveniently conveyed into the heat preservation area 4 through the two connecting pipes 701 at the two sides of the top of the heat preservation area 4, the residual heat energy in the heat preservation area 4 is conveyed into the temperature rising area 3, the high temperature in the reflow area 5 can be gradually decreased in the heat preservation area 4 and the temperature rising area 3, the utilization rate of high-temperature resources in the reflow area 5 is improved, the motor 808 is started, the rotating ring 801 is rotated through the connection of the rotating gear 806 and the rotating ring 801, the rotating column 802 is conveniently and stably rotated, the rotating blade 803 can rotate in the inner cavity of the connecting pipes 701, hot gas can be better transmitted, and the hot gas transmission efficiency is improved, meanwhile, the normal use of the motor 808 cannot be influenced by hot gas, the use safety of the reflow oven is improved, and the service life of the reflow oven is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A reflow furnace for welding electronic products comprises a furnace body (1) and is characterized in that one end of the furnace body (1) is provided with a draft zone (2), one side of the draft zone (2) is provided with a temperature rising zone (3), one side of the temperature rising zone (3) is provided with a heat preservation zone (4), one side of the heat preservation zone (4) is provided with a reflow zone (5), and two sides of the top of the heat preservation zone (4) are provided with connecting mechanisms (7);

connection mechanism (7) contain connecting pipe (701), connecting box (702), two support columns (703), two connecting holes (704) and a plurality of exhaust hole (705), be provided with transmission device (8) on connecting pipe (701), transmission device (8) contain and rotate circle (801), rotation post (802), a plurality of rotating vane (803), locating lever (804), locating piece (805), rotating gear (806), axis of rotation (807) and motor (808), it is connected with rotating gear (806) meshing to rotate circle (801).

2. The reflow furnace for electronic product soldering according to claim 1, wherein two ends of the two connecting pipes (701) are fixedly inserted and connected with the top of the heating area (3), the heat preservation area (4) and the top of the reflow area (5), respectively, and the rotating ring (801) is fixedly connected with the outer wall of the rotating column (802) through a support rod.

3. The reflow oven for electronic product soldering according to claim 1, wherein the plurality of rotating blades (803) are fixedly connected with the outer wall of the rotating column (802) in an annular array, and the positioning rod (804) is rotatably inserted and connected with the middle part of the rotating column (802) through a bearing.

4. The reflow oven for electronic product soldering according to claim 1, wherein one end of the positioning rod (804) is fixedly connected to the top of the positioning block (805), and the bottom end of the positioning block (805) is fixedly connected to the inner wall of the connecting pipe (701).

5. The reflow oven for electronic product soldering according to claim 1, wherein one end of the rotating shaft (807) is in transmission connection with an output end of a motor (808), and the other end of the rotating shaft (807) is fixedly inserted and connected with the middle part of the rotating gear (806).

6. Reflow oven for electronic product soldering according to claim 1, characterized in that the bottom of the connection box (702) is fixedly connected to the top of the connection pipe (701), and the two connection boxes (702) are fixedly connected to the top of the heat preservation area (4) and the reflow area (5) respectively through two support columns (703).

7. Reflow oven for electronic product soldering according to claim 1, characterized in that the reflow area (5) is provided with a cooling area (6) at one side, and a plurality of the vent holes (705) are opened at the top of the connection box (702), respectively.