Blowing electric heating element

Abstract

The utility model discloses a blowing electric heating element, which belongs to the technical field of welding devices and comprises a main shell, an air inlet component is mounted at one end of the main shell, a heating body is arranged at one end, far away from the air inlet component, of the main shell, and a positioning component is arranged between the heating body and the main shell. The heating body is fixedly installed at one end of the main shell through a positioning assembly, and the heating body is sleeved with a protective sleeve. According to the chip welding device, through the arrangement of the heating body, heat generated by power supply of the heating wire can be diffused into the air blowing channel through the heating pipe, through the arrangement of the air inlet assembly, air can be blown into the air blowing channel, heat in the air blowing channel is blown out, and therefore a chip is heated and welded; the device has the advantages that the set temperature can be accurately output by adjusting the air flow and the power of the electric heating body, and then the local temperature is accurately controlled, so that the overall welding temperature of a chip is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a blowing electrothermal element. Background Technique

[0002] At present, when welding chips, generally, solder is first applied to the pads on one side of the PCB board, then the components are clamped with tweezers and placed on the soldered pads, and the soldered pads are ironed with an electric soldering pen, and one end of the component is fixed. Then, solder wire is used to solder both sides. Or when welding some small components, first apply solder to the soldering iron tip with solder wire, then use tweezers to place the component on the pad, and then use the solder on the soldering iron tip to fix the component. Finally, both ends are supplemented with solder.

[0003] In the above chip welding process, it is very difficult to control the welding temperature of the electrothermal element, and it is difficult to accurately control the local temperature to make the overall welding temperature of the chip uniform. Therefore, we need to propose a blowing electrothermal element. Content of the Utility Model

[0004] The purpose of the utility model is to provide a blowing electrothermal element, which has the advantages of accurately outputting the set temperature by adjusting the air flow size and the power of the electrothermal body, and then achieving accurate control of the local temperature to make the overall welding temperature of the chip uniform, so as to solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides a blowing electrothermal element, which includes a main housing. An air inlet assembly is installed at one end of the main housing. A heating body is arranged at the end of the main housing far from the air inlet assembly. A positioning assembly is arranged between the heating body and the main housing. The heating body is installed and fixed at one end of the main housing through the positioning assembly. A protective sleeve is sleeved outside the heating body. A power supply assembly for supplying power to the heating body is installed on the top of the main housing.

[0006] Preferably, the air inlet includes an air inlet opening formed at one end of the main housing, and a quick air connection head is threadedly connected to the inner cavity of the air inlet opening.

[0007] Preferably, the heating body includes a heating tube arranged at one end of the main housing. A heating wire is fixedly connected to the inner cavity of the heating tube. A metal tube is arranged outside the heating tube. A plurality of partition plates are arranged between the metal tube and the heating tube. Both sides of the partition plate are fixedly connected to the inner wall of the metal tube and the surface of the heating tube respectively.

[0008] Preferably, a plurality of groups of the partition plates are provided, and the plurality of groups of partition plates are installed in an annular equidistant array between the heating tube and the metal tube. A blowing channel is formed between adjacent two groups of partition plates.

[0009] Preferably, the power supply assembly includes a power cord disposed on one side of the main housing. One end of the power cord penetrates through the main housing and extends into the inner cavity of the main housing to be electrically connected to the heating wire. A pressing seat is installed on one side of the main housing at the corresponding position of the power cord, and the power cord is installed and fixed on the surface of the main housing through the pressing seat.

[0010] Preferably, the positioning assembly includes a positioning seat fixedly installed at one end of the main housing. A positioning tube is fixedly installed on one side of the positioning seat, and one end of the heating tube is threadedly connected to the inner cavity of the positioning tube.

[0011] Preferably, the quick connector, the main housing, and the heating tube are coaxially arranged, and the quick connector and the air blowing channel are connected together through the main housing.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Through the setting of the heating body in the present utility model, the heat generated by the power supply to the heating wire will be diffused into the inside of the air blowing channel through the heating tube. Through the setting of the air intake assembly, air can be blown into the inside of the air blowing channel, so that the heat inside the air blowing channel is blown out to the outside, thereby heating and welding the chip. Through the setting of this device, it has the advantages that the set temperature can be accurately output by adjusting the air flow size and the power of the electrothermal body, and then the local temperature can be accurately controlled to make the overall welding temperature of the chip uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the air intake assembly and the protective sleeve of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the heating body of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the positioning assembly of the present utility model.

[0018] In the figure: 1, main housing; 2, protective sleeve; 3, quick air connection head; 4, air intake hole; 5, heating tube; 6, heating wire; 7, metal tube; 8, partition plate; 9, air blowing channel; 10, power cord; 11, pressing seat; 12, positioning seat; 13, positioning tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a blowing electrothermal element, which includes a main housing 1. An air inlet assembly is installed at one end of the main housing 1. The air inlet includes a quick air connection head 3 threadedly connected to one end of the main housing 1. An air inlet hole 4 is opened in the inner cavity of the quick air connection head 3. A heating body is provided at the end of the main housing 1 away from the air inlet assembly. The heating body includes a heating tube 5 provided at one end of the main housing 1. A heating wire 6 is fixedly connected to the inner cavity of the heating tube 5. A metal tube 7 is provided outside the heating tube 5. A plurality of partition plates 8 are provided between the metal tube 7 and the heating tube 5. Both sides of the partition plate 8 are fixedly connected to the inner wall of the metal tube 7 and the surface of the heating tube 5 respectively. A plurality of groups of the partition plates 8 are provided, and the plurality of groups of the partition plates 8 are installed in an annular equidistant array between the heating tube 5 and the metal tube 7. A blowing channel 9 is formed between two adjacent groups of the partition plates 8. The quick connector, the main housing 1 and the heating tube 5 are coaxially arranged, and the quick connector and the blowing channel 9 are communicated together through the main housing 1.

[0021] In this embodiment, through the combined use of the air inlet assembly and the heating body, when using this device to weld a chip, the user can connect an external power supply and an external air source. After connecting the external power supply, the heating wire 6 will work and transfer heat to the inside of the blowing channel 9 through the heating tube 5. At this time, the user can turn on the external air source switch and introduce high-pressure air into the main housing 1 through the air inlet hole 4, so as to blow out the heat to the outside through the blowing channel 9 for welding treatment of the chip. Through the setting of this device, the set temperature can be accurately output by adjusting the air flow size and the power of the electrothermal body, and then the local temperature can be accurately controlled to make the overall welding temperature of the chip uniform.

[0022] Preferably, a positioning assembly is provided between the heating body and the main housing 1. The heating body is installed and fixed at one end of the main housing 1 through the positioning assembly. The positioning assembly includes a positioning seat 12 fixedly installed at one end of the main housing 1. A positioning tube 13 is fixedly installed on one side of the positioning seat 12. One end of the heating tube 5 is threadedly connected to the inner cavity of the positioning tube 13.

[0023] Through the setting of the positioning component, the heating element can be installed and fixed at one end of the main housing 1. In this embodiment, the positioning seat 12 and the main housing 1 are integrally formed, and a positioning tube 13 is provided at one end thereof. The user can process a thread on one end of the heating element that is adapted to the inner wall of the positioning tube 13 and tighten it in the inner cavity of the positioning tube 13, thereby installing and fixing the heating element and the main housing 1 together. Preferably, in some other preferred embodiments, installation methods such as snap connection, locking, and welding can be used to install and fix the heating element on the main housing 1.

[0024] Wherein, a protective sleeve 2 is sleeved outside the heating element. In this embodiment, the protective sleeve 2 is provided outside the heating element, and the protective sleeve 2 plays a role of heat insulation and protection, preventing the surface of the heating element from overheating and causing a risk of scalding to the operator during use. The material of the protective sleeve 2 can be made of glass fiber, asbestos, silicate, aerogel felt, vacuum plate, aluminum foil, glass fiber, carbon fiber, or non-woven meta-aramid, etc., which has a good heat insulation and protection effect.

[0025] It should be noted that a power supply component for supplying power to the heating element is installed on the top of the main housing 1. The power supply component includes a power cord 10 provided on one side of the main housing 1. One end of the power cord 10 penetrates the main housing 1 and extends into the inner cavity of the main housing 1 to be electrically connected to the heating wire 6. A pressing seat 11 is installed on one side of the main housing 1 and at the corresponding position of the power cord 10. The power cord 10 is installed and fixed on the surface of the main housing 1 through the pressing seat 11. Through the setting of the power supply component, power can be supplied to the heating element. The power cord 10 is fixed on the surface of the main housing 1 through the pressing seat 11, which can prevent it from moving during normal use.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Air-blowing electric heating element, characterized in that: The invention comprises a main shell (1) and a quick connector, wherein an air intake assembly is installed at one end of the main shell (1), a heating body is arranged at one end of the main shell (1) away from the air intake assembly, a positioning assembly is arranged between the heating body and the main shell (1), the heating body is fixed to one end of the main shell (1) by the positioning assembly, a protective sleeve (2) is arranged on the outside of the heating body, and a power supply assembly for supplying power to the heating body is installed on the top of the main shell (1).

2. The air-blowing electric heating element according to claim 1, characterized in that: The air inlet comprises a quick air connection head (3) threadedly connected to one end of the main housing (1), and an air inlet hole (4) is provided in the inner cavity of the quick air connection head (3).

3. The air-blowing electric heating element according to claim 2, characterized in that: The heating body comprises a heating tube (5) arranged at one end of the main shell (1); the inner cavity of the heating tube (5) is fixedly connected to a heating wire (6); a metal tube (7) is arranged outside the heating tube (5); a plurality of groups of partition plates (8) are arranged between the metal tube (7) and the heating tube (5); two sides of the partition plates (8) are respectively fixedly connected to the inner wall of the metal tube (7) and the surface of the heating tube (5).

4. The air-blowing electric heating element according to claim 3, characterized in that: The partition plates (8) are provided in a plurality of groups, and the plurality of groups of partition plates (8) are installed between the heating tube (5) and the metal tube (7) in a circular equidistant array, and a blowing channel (9) is formed between two adjacent groups of partition plates (8).

5. The air-blowing electric heating element according to claim 3, characterized in that: The power supply assembly comprises a power cord (10) arranged on one side of the main shell (1); one end of the power cord (10) passes through the main shell (1) and extends to the inner cavity of the main shell (1) to be electrically connected to the heating wire (6); a clamping seat (11) is installed on one side of the main shell (1) and at a position corresponding to the power cord (10); the power cord (10) is fixed to the surface of the main shell (1) via the clamping seat (11).

6. The air-blowing electric heating element according to claim 3, characterized in that: The positioning assembly comprises a positioning seat (12) fixedly mounted on one end of the main housing (1), a positioning tube (13) fixedly mounted on one side of the positioning seat (12), and one end of the heating tube (5) is threadedly connected to the inner cavity of the positioning tube (13).

7. The air-blowing electric heating element according to claim 4, characterized in that: The quick connector, the main housing (1) and the heating tube (5) are coaxially arranged, and the quick connector and the air blowing channel (9) are connected together through the main housing (1).

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