Three-temperature-zone tin furnace
By setting up three temperature zones inside the solder furnace and using a combination of heating and heat-conducting components, the problem of uneven solder furnace temperature is solved, achieving uniform solder temperature and improving soldering reliability and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东成蔚电子科技有限公司
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
The existing solder pot has uneven temperature, resulting in poor wettability of the molten solder. The solder joints and wire leads cannot form an effective intermetallic compound, causing unstable electrical connections and making them prone to poor contact or open circuits.
The three-zone tin furnace design uses three parallel heating and heat-conducting components to achieve consistent temperature control of the molten solder inside the furnace. Temperature sensors and temperature control boxes are used for independent regulation to ensure temperature uniformity in each zone.
It achieves uniform temperature distribution of molten tin in the tin furnace, improves welding stability, avoids problems such as cold solder joints and poor contact, and extends service life.
Smart Images
Figure CN224182248U_ABST
Abstract
Description
A three-temperature zone tin furnace Technical Field
[0001] This utility model relates to the field of soldering technology, and more specifically, to a three-temperature zone solder furnace. Background Technology
[0002] In the production process of inductor coils, conductors such as copper wire and enameled wire are wound onto a magnetic core or frame to form a coil. The ends of the conductors are fixed by being wound around the magnetic core. The ends generally need to be tinned to isolate the wires from the air and prevent the metal parts of the conductors from oxidizing in the air. The solder covers the connection points, blocking oxygen, moisture and corrosive substances, thus extending the service life.
[0003] However, existing solder pots suffer from uneven temperature distribution. The temperature of the molten solder is higher near the heating zone and lower further away, resulting in temperature fluctuations. This can lead to poor soldering during immersion, as the solder has poor wettability and the solder joints cannot form an effective intermetallic compound with the wire leads, causing unstable electrical connections and making them prone to poor contact or open circuits. Therefore, it is necessary to propose improvements to the existing solder pots. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a three-temperature zone solder furnace that synchronously controls three heating components to achieve a consistent temperature in the solder furnace, thus solving the problem of uneven temperature in existing solder furnaces.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A three-temperature zone solder furnace includes a furnace body, heating components, and heat-conducting components. Along the length of the furnace body, three heating components are arranged in parallel within the furnace body, wherein two heating components are respectively located at the front and rear ends of the furnace body, and the third heating component is located in the middle of the furnace body. Multiple heat-conducting components are arranged within the furnace body.
[0007] In one embodiment, the three-zone tin furnace further includes a temperature sensor and a temperature control box. The three heating components are connected to the temperature control box and are independently controlled by the temperature control box. The temperature sensor is installed on the furnace body to detect the temperature of the molten tin.
[0008] In one embodiment, the number of temperature sensors is greater than or equal to three, and the three temperature sensors are respectively located in the front, middle and rear regions of the furnace body.
[0009] In one embodiment, three or four heat-conducting components are disposed between two adjacent heating components, and one heat-conducting component is disposed between the heating components located at the front and rear ends of the furnace body and the inner wall of the furnace body.
[0010] In one embodiment, a plurality of the heat-conducting components are arranged in parallel within the furnace body, and the heat-conducting components are parallel to the heating components.
[0011] In one embodiment, a plurality of the heat-conducting components are arranged along the length of the furnace body, the heat-conducting components are perpendicular to the length of the furnace body, and both ends of the heat-conducting components are fixedly connected to the inner wall of the furnace body.
[0012] In one embodiment, the heating component includes a heating rod.
[0013] In one embodiment, the heat-conducting component is a heat-conducting rod made of alloy material.
[0014] In one embodiment, the three-temperature zone tin furnace further includes a molten tin recovery tank, which is disposed on one side of the furnace body. The molten tin recovery tank is lower than the furnace body, or the molten tin recovery tank is at the same height as the furnace body.
[0015] In summary, this utility model has the following beneficial effects:
[0016] This invention uses three heating components to divide the molten solder inside the furnace into three heating zones. Each heating component maintains the temperature of its corresponding zone, and the three heating components are synchronously controlled to achieve a consistent temperature in the solder furnace. The heat-conducting component is located inside the furnace and plays a role in conducting heat, ensuring uniform heat distribution within the furnace. This invention achieves a consistent temperature of the molten solder inside the furnace using a relatively small number of heating components. Attached Figure Description
[0017] Figure 1 is a schematic diagram of this utility model.
[0018] In the diagram: 1. Furnace body, 2. Heating components, 3. Heat conduction components, 4. Solder recovery tank. Detailed Implementation
[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.
[0021] This invention proposes a three-temperature zone solder pot, ensuring a uniform overall temperature and effectively solving the problem of uneven temperature during coil immersion soldering, which leads to weak solder joints. As shown in Figure 1, the three-temperature zone solder pot includes a pot body 1, heating components 2, and heat-conducting components 3. Along the length of the pot body 1, three heating components 2 are arranged parallel to each other within the pot body 1. Two heating components 2 are located at the front and rear ends of the pot body 1, respectively, and the third heating component 2 is located in the middle of the pot body 1. Multiple heat-conducting components 3 are located within the pot body 1. It is easy to understand that the three heating components 2 divide the molten solder within the pot body 1 into three heating zones. Each heating component 2 maintains the temperature of its corresponding zone, and the three heating components 2 are synchronously controlled to achieve a uniform temperature within the pot body. The heat-conducting components 3, located within the pot body 1, conduct heat, ensuring even heat distribution within the pot body 1. This invention achieves a uniform temperature of the molten solder within the pot using fewer heating components 2.
[0022] In some embodiments, the three-zone tin furnace further includes temperature sensors and a temperature control box. The three heating components 2 are connected to the temperature control box and are independently controlled by the temperature control box. The temperature sensors are installed on the furnace body 1 to detect the temperature of the molten solder and feed it back to the temperature control box to regulate the heating components 2. Preferably, the number of temperature sensors is greater than or equal to three, and the three temperature sensors are respectively located in the front, middle and rear zones of the furnace body 1.
[0023] In some embodiments, three or four heat-conducting components 3 are arranged between two adjacent heating components 2, and one heat-conducting component 3 is arranged between the heating components 2 located at the front and rear ends of the furnace body 1 and the inner wall of the furnace body 1. The multiple heat-conducting components 3 are evenly distributed in the furnace body 1, which is beneficial to the uniform distribution of heat.
[0024] Preferably, as shown in Figure 1, multiple heat-conducting components 3 are arranged in parallel within the furnace body 1, and the heat-conducting components 3 are parallel to the heating components 2. The heat released by the heating components 2 is first transferred to the adjacent heat-conducting components 3, which heat the molten solder in the adjacent area. Subsequently, the heat is transferred to the molten solder further away, ultimately making the temperature of the molten solder in all areas of the furnace body 1 uniform. As shown in Figure 1, multiple heat-conducting components 3 are arranged along the length direction of the furnace body 1, perpendicular to the length direction of the furnace body 1, and both ends of the heat-conducting components 3 are fixedly connected to the inner wall of the furnace body 1. In this invention, the furnace body 1 is also made of metal, and the multiple heat-conducting components 3 and the furnace body 1 form a heat-conducting network. The heat generated by the heating components 2 flows in this heat-conducting network, making the temperature of the molten solder uniform throughout.
[0025] In this invention, the heating component 2 can take various forms; preferably, the heating component 2 includes a heating rod. Preferably, the heat-conducting component 3 is a heat-conducting rod made of alloy material.
[0026] In this invention, the three-temperature zone solder furnace also includes a molten solder recovery tank 4, which is located on one side of the furnace body 1. The molten solder recovery tank 4 is either lower than or at the same height as the furnace body 1. An oxide layer easily forms on the surface of the molten solder. With the assistance of an external pushing device, the surface of the molten solder is periodically pushed into the molten solder recovery tank 4 for collection.
[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A three-temperature zone tin furnace, characterized in that, The furnace includes a furnace body (1), a heating component (2), and a heat-conducting component (3). Along the length of the furnace body (1), three heating components (2) are arranged in parallel inside the furnace body (1). Two heating components (2) are respectively arranged at the front and rear ends inside the furnace body (1), and the third heating component (2) is arranged in the middle inside the furnace body (1). Multiple heat-conducting components (3) are arranged inside the furnace body (1).
2. The three-temperature zone tin furnace as described in claim 1, characterized in that, It also includes a temperature sensor and a temperature control box. The three heating components (2) are connected to the temperature control box and are independently controlled by the temperature control box. The temperature sensor is set on the furnace body (1) to detect the temperature of the molten tin.
3. The three-temperature zone tin furnace as described in claim 2, characterized in that, The number of temperature sensors is greater than or equal to three, and the three temperature sensors are respectively located in the front, middle and rear regions of the furnace body (1).
4. The three-temperature zone tin furnace as described in claim 1, characterized in that, Three or four heat-conducting components (3) are arranged between two adjacent heating components (2), and one heat-conducting component (3) is arranged between the heating components (2) at the front and rear ends of the furnace body (1) and the inner wall of the furnace body (1).
5. The three-temperature zone tin furnace as described in claim 4, characterized in that, Multiple heat-conducting components (3) are arranged in parallel inside the furnace body (1), and the heat-conducting components (3) are parallel to the heating components (2).
6. The three-temperature zone tin furnace as described in claim 5, characterized in that, Multiple heat-conducting components (3) are arranged along the length direction of the furnace body (1), the heat-conducting components (3) are perpendicular to the length direction of the furnace body (1), and both ends of the heat-conducting components (3) are fixedly connected to the inner wall of the furnace body (1).
7. The three-temperature zone tin furnace as described in any one of claims 1-6, characterized in that, The heating component (2) includes a heating rod.
8. The three-temperature zone tin furnace as described in any one of claims 1-6, characterized in that, The heat-conducting component (3) is a heat-conducting rod made of alloy material.
9. The three-temperature zone tin furnace as described in claim 1, characterized in that, It also includes a molten tin recovery tank (4), which is located on one side of the furnace body (1). The molten tin recovery tank (4) is lower than the furnace body (1), or the molten tin recovery tank (4) is at the same height as the furnace body (1).