CN217749759U - Thermal uniformity management device of vacuum eutectic welding furnace - Google Patents
Thermal uniformity management device of vacuum eutectic welding furnace Download PDFInfo
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- CN217749759U CN217749759U CN202221554020.XU CN202221554020U CN217749759U CN 217749759 U CN217749759 U CN 217749759U CN 202221554020 U CN202221554020 U CN 202221554020U CN 217749759 U CN217749759 U CN 217749759U
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Abstract
The utility model discloses a hot homogeneity management device of vacuum eutectic solder stove, include: the device comprises a cavity upper cover, a cavity lower cover, a heating plate, a plurality of cooling gas inlet pipes, a heating plate cold source system, a plurality of lamp tubes and a plurality of quartz tubes, wherein the cavity lower cover is hinged with the cavity upper cover through a rotating shaft; the heating plate is horizontally arranged inside the lower cover of the cavity; one end of the cooling gas inlet pipe is communicated with the bottom surface of the cavity lower cover; one end of the heating plate cold source system is connected with a nitrogen source, and the other end of the heating plate cold source system is connected with a cooling gas inlet pipe; the plurality of lamp tubes are arranged between the heating plate and the cavity lower cover side by side and are connected with an external power supply for electrification; two ends of each quartz tube respectively penetrate through two sides of the lower cover of the cavity body, and a lamp tube is sleeved in each quartz tube; vacuum tube one end passes through the cavity lower cover and communicates to in the cavity, and the vacuum pump is connected to the other end, the utility model discloses a can form even heating power density for the temperature on the hot plate is more even.
Description
Technical Field
The utility model relates to a vacuum eutectic technical field specifically is a vacuum eutectic welds stove thermal uniformity management device.
Background
The vacuum eutectic furnace is a process welding furnace for high-end products, such as laser devices, aerospace, electric vehicles and other industries, and has greater technical advantages compared with the traditional chain furnace. The vacuum eutectic furnace system mainly comprises: vacuum system, reducing atmosphere system, heating/cooling system, gas flow control system, safety system, control system, and the like
Compared with the traditional reflow soldering system, the vacuum soldering furnace is mainly used for assisting the cavity to be discharged when the tin paste/soldering lug is above the liquidus line, so that the cavity rate is reduced.
The general welding furnace has no environmental atmosphere control, which causes defects such as insufficient soldering and the like, such as formic acid process, hydrogen process, microwave plasma process and the like, and the temperature of the heating plate in the existing welding furnace is uneven, which causes uneven heating of products and easily causes the conditions of over-soldering or insufficient soldering temperature and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hot homogeneity management device of vacuum eutectic welding stove to solve the inhomogeneous problem that influences welding quality of general hot plate heating.
The technical scheme of the utility model is that:
a thermal uniformity management device for a vacuum eutectic bonding furnace, comprising: the upper part of the cavity body upper cover is provided with an observation window, and the side surface is provided with a rotating shaft fixing seat; the cavity lower cover is hinged with the cavity upper cover through a rotating shaft on the rotating shaft fixing seat; the heating plate is horizontally arranged inside the lower cover of the cavity; one end of each cooling air inlet pipe is communicated with the bottom surface of the cavity lower cover, and each cooling air inlet pipe is arranged opposite to the heating plate and used for cooling the heating plate; one end of the heating plate cold source system is connected with a nitrogen source, the other end of the heating plate cold source system is connected with the cooling gas inlet pipe, and an electromagnetic valve is arranged between the nitrogen source and the heating plate cold source system; the lamp tubes are arranged between the heating plate and the cavity lower cover side by side and are connected with an external power supply for heating; two ends of each quartz tube penetrate through two sides of the lower cover of the cavity respectively, and a lamp tube is sleeved in each quartz tube; one end of the vacuum tube is communicated to the cavity through the lower cover of the cavity, and the other end of the vacuum tube is connected with the vacuum valve and then connected with the vacuum pump.
Furthermore, a sealing ring is arranged between the observation window glass embedded in the observation window and used for sealing the observation window glass and the cavity upper cover.
Furthermore, the periphery of the sealing ring on the upper cover of the cavity is provided with a water cooling groove for cooling the sealing ring, so that the sealing ring is prevented from being scalded by high temperature in the furnace to cause air leakage of the cavity, and the positive and negative pressure environment in the cavity in the furnace is damaged.
Furthermore, a first lamp tube fixing block and a second lamp tube fixing block are symmetrically arranged on two sides of each lamp tube, each lamp tube is arranged in the middle of a quartz tube in the cavity lower cover in a suspension mode through the first lamp tube fixing block and the second lamp tube fixing block, and the quartz tube is located between the cavity lower cover and the heating plate.
Furthermore, the heating plate is characterized by further comprising a heat uniform baffle plate, wherein the heat uniform baffle plate is arranged between the lamp tube and the heating plate through a support.
Furthermore, the hot uniform baffle is a symmetrical cross spindle-shaped plate and is used for adjusting the temperature distribution on the heating plate, so that the temperature distribution on the heating plate is more uniform.
Further, the method also comprises the following steps: the heating plate fixed block is arranged between the heating plate and the cavity lower cover bottom surface fixed holes and used for supporting the heating plate.
Furthermore, the vacuum cavity comprises quartz tube sealing parts which are arranged at the joints of the quartz tubes and the cavity lower cover and are used for sealing the joints and ensuring the vacuum condition in the cavity.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an infrared shadowless lamp radiant heating hot plate has constituteed the vacuum cavity through quartz capsule, cavity upper cover, cavity lower cover and observation window, and quartz capsule radiant heating forms even heating power density for the temperature on the hot plate is more even.
2. The utility model discloses a nitrogen gas cooling can be all positions of contact hot plate and work piece quicker, reduce the heat stress accumulation.
3. The utility model discloses a cover on the cavity and set up the observation window and let technology development become visual.
4. The utility model discloses a radiation heating's mode makes the vacuum cavity safer and keep the clean in the vacuum cavity.
5. The utility model discloses a vacuum pipeline lets the evacuation more gentle and agreeable fast, adapts to the empty demand of eliminating.
The lamp comprises a cavity upper cover, a cavity lower cover, a rotating shaft fixing seat, a cavity lower cover, a heating plate cold source system, a vacuum tube, a quartz tube sealing part, a first lamp tube fixing block, a lamp tube, a second lamp tube fixing block, a viewing window, an observation window, 11, a rotating shaft, 12, an observation window glass, 13, a water cooling groove, 14, a quartz tube, 15, a cooling air inlet tube, 16, a heat uniform baffle, 17, a heating plate, 18 and a heating plate fixing block.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a left side view structure diagram of the present invention;
FIG. 3 isbase:Sub>A schematic structural view of the cross section A-A of the present invention;
FIG. 4 is a schematic view of the structure of the lower cover of the cavity of the present invention;
fig. 5 is a perspective view of the structure diagram of the present invention.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to fig. 1 to 5. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that the circuit connection involved in the present invention adopts a conventional circuit connection manner, and does not involve any innovation.
Examples
As shown in fig. 1 to 5, a thermal uniformity management apparatus for a vacuum eutectic bonding furnace includes: the device comprises a cavity upper cover 1, a cavity lower cover 3, a heating plate 17, a plurality of cooling gas inlet pipes 15, a heating plate cold source system 4, a plurality of lamp tubes 8 and a plurality of quartz tubes 14, wherein an observation window 10 is arranged above the cavity upper cover 1, and a rotating shaft fixing seat 2 is arranged on the side surface of the cavity upper cover; the cavity lower cover 3 is hinged with the cavity upper cover 1 through a rotating shaft 11 on the rotating shaft fixing seat 2; the heating plate 17 is horizontally arranged in the cavity lower cover 3 and used for receiving the power of infrared radiation and then indirectly heating the product on the heating plate; one end of a cooling air inlet pipe 15 is communicated with the bottom surface of the cavity lower cover 3, and an air inlet is arranged opposite to the heating plate 17 and used for cooling the heating plate 17; one end of the heating plate cold source system 4 is connected with a nitrogen source, the other end of the heating plate cold source system is connected with the cooling gas inlet pipe 15, and an electromagnetic valve is arranged between the nitrogen source and the heating plate cold source system 4; a plurality of lamp tubes 8 are arranged between the heating plate 17 and the cavity lower cover 3 side by side, are connected with an external power supply to be electrified and heated, heat radiation heats the heating plate through radiation of the quartz tube, and the heating plate is contacted with a product on the heating plate for heat transfer; two ends of each quartz tube 14 respectively penetrate through two sides of the cavity lower cover 3, a lamp tube 8 is sleeved in each quartz tube 14, and the quartz tubes 14 can enable infrared radiation of the lamp tubes to enter the cavity for heating; one end of the vacuum tube 5 is communicated into the cavity through the cavity lower cover 3, the other end of the vacuum tube is connected with the vacuum valve and then connected with the vacuum pump, and the cooling air inlet tube 15 and the lamp tube 8 are used as a cold source and a heat source together for temperature control.
Preferably, in order to prevent the occurrence of a gap at the position of the observation window 10 and influence the vacuum environment in the cavity in the furnace, a sealing ring is arranged between the observation window glass 12 embedded in the observation window 10 and the observation window 10, and the observation window glass 12 and the cavity upper cover 1 are sealed.
Preferably, in order to prevent the seal ring from being scalded by high temperature in the furnace to cause air leakage of the cavity and damage of positive and negative pressure environments in the cavity in the furnace, a water cooling groove 13 is arranged on the periphery of the seal ring on the cavity upper cover 1 and used for cooling the seal ring.
Preferably, in order to improve the heat output of the lamp tube 8, the quartz tube 14 can send the infrared radiation emitted by the lamp tube 8 into the cavity more effectively, and each lamp tube 8 is symmetrically arranged on two sides with the first lamp tube fixing block 7 and the second lamp tube fixing block 9, and each lamp tube 8 is arranged in the middle of the quartz tube in the cavity lower cover 3 in a suspension manner through the first lamp tube fixing block 7 and the second lamp tube fixing block 9, and the quartz tube is arranged between the cavity lower cover 3 and the heating plate 17.
Preferably, in order to improve the uniformity of the temperature on the heating plate 17, the thermal uniformity management device of the vacuum eutectic welding furnace further comprises a thermal uniformity baffle 16, wherein the thermal uniformity baffle 16 is arranged between the lamp tube 8 and the heating plate 17 through a bracket and the quartz tube 14.
Preferably, the thermal uniformity baffle 16 is a symmetrical cross-shaped spindle plate for adjusting the temperature distribution on the heating plate 17, so that the temperature distribution on the heating plate 17 is more uniform.
Specifically, still include: and the heating plate fixing block 18 is arranged between the heating plate 17 and the fixing hole on the bottom surface of the cavity lower cover 3 and used for supporting the heating plate 17.
Preferably, in order to prevent a gap from occurring between the quartz tube 14 and the chamber lower cover 3, thereby affecting the sealing performance of the device and causing the vacuum environment to be damaged, the thermal uniformity management device of the vacuum eutectic welding furnace further comprises a quartz tube sealing member 6 arranged at the joint of each quartz tube 14 and the chamber lower cover 3, and used for sealing the joint and ensuring the vacuum condition in the chamber.
Preferably, the distance between the heating plate 17 and the lamp vessel 8 is adjustable.
Preferably, in order to meet the process requirement of rapid welding and rapid cooling, the heating power of a single lamp tube 8 is increased, and the flow of cooling gas is increased, so as to meet the welding process requirement of welding low-temperature welding materials such as bismuth, tin and the like.
The above disclosure is only for the preferred embodiments of the present invention, however, the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.
Claims (8)
1. A thermal uniformity management device of a vacuum eutectic soldering furnace is characterized by comprising:
an observation window (10) is arranged above the cavity upper cover (1), and a rotating shaft fixing seat (2) is arranged on the side surface of the cavity upper cover;
the cavity lower cover (3) is hinged with the cavity upper cover (1) through a rotating shaft (11) on the rotating shaft fixing seat (2);
the heating plate (17) is horizontally arranged inside the cavity lower cover (3);
one end of each cooling air inlet pipe (15) is communicated with the bottom surface of the cavity lower cover (3), and air inlets are formed in the positions corresponding to the heating plates (17) and used for cooling the heating plates (17);
one end of the heating plate cold source system (4) is connected with a nitrogen source, the other end of the heating plate cold source system is connected with the cooling gas inlet pipe (15), and an electromagnetic valve is arranged between the nitrogen source and the heating plate cold source system (4);
the lamp tubes (8) are arranged between the heating plate (17) and the cavity lower cover (3) side by side and are connected with an external power supply for heating by electrifying;
the two ends of each quartz tube (14) respectively penetrate through the two sides of the cavity lower cover (3), and a lamp tube (8) is sleeved in each quartz tube (14);
one end of the vacuum tube (5) is communicated to the cavity through the cavity lower cover (3), and the other end is connected with the vacuum valve and then connected with the vacuum pump.
2. A thermal uniformity management device for a vacuum eutectic soldering furnace according to claim 1, wherein a viewing window glass (12) is embedded in the viewing window (10), and a sealing ring is arranged between the viewing window glass (12) and the viewing window (10).
3. The thermal uniformity management device of the vacuum eutectic welding furnace according to claim 2, characterized in that a water cooling groove (13) is arranged on the periphery of the sealing ring on the cavity upper cover (1).
4. The thermal uniformity management device of the vacuum eutectic solder furnace according to claim 1, wherein a first lamp fixing block (7) and a second lamp fixing block (9) are symmetrically arranged on both sides of each lamp (8), each lamp (8) is suspended in the middle of a quartz tube in the cavity lower cover (3) through the first lamp fixing block (7) and the second lamp fixing block (9), and the quartz tube is located between the cavity lower cover (3) and the heating plate (17).
5. A thermal uniformity management device for a vacuum eutectic soldering furnace according to claim 1, further comprising a thermal uniformity shield (16), wherein said thermal uniformity shield (16) is disposed between the lamp (8) and said heating plate (17) by a bracket.
6. The thermal uniformity management device of a vacuum eutectic welding furnace according to claim 5, wherein the thermal uniformity baffle (16) is a symmetric cross-spindle shaped plate.
7. The thermal uniformity management apparatus of a vacuum eutectic solder furnace of claim 1, further comprising: the heating plate fixing blocks (18), the heating plate fixing blocks (18) are arranged between the heating plate (17) and the bottom surface fixing holes of the cavity lower cover (3).
8. A thermal uniformity management device for a vacuum eutectic bonding furnace according to claim 1, further comprising a quartz tube seal (6) disposed at the junction of each quartz tube (14) and the chamber lower cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221554020.XU CN217749759U (en) | 2022-06-21 | 2022-06-21 | Thermal uniformity management device of vacuum eutectic welding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221554020.XU CN217749759U (en) | 2022-06-21 | 2022-06-21 | Thermal uniformity management device of vacuum eutectic welding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217749759U true CN217749759U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221554020.XU Active CN217749759U (en) | 2022-06-21 | 2022-06-21 | Thermal uniformity management device of vacuum eutectic welding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217749759U (en) |
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2022
- 2022-06-21 CN CN202221554020.XU patent/CN217749759U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: No. 688 Xiema Street, Xiema Town, Beibei District, Chongqing, 400700 (Xiema Development Park, Chongqing High tech Zone) Patentee after: Zhongke Guangzhi (Chongqing) Technology Co.,Ltd. Address before: Room 2-1, No. 22, Zone C, Venture R&D Park, No. 69, Jinye Road, High-tech Zone, Xi'an City, Shaanxi Province 710077 Patentee before: Zhongke Guangzhi (Xi'an) Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |