Tin sucking structure of tin gun

Abstract

The utility model relates to the technical field of solder suckers, and discloses a solder gun solder sucking structure which comprises an air suction pipe, a suction nozzle, a heating component, a temperature measuring element and a heat preservation pipe, a suction inlet is formed in one end of the air suction pipe, an exhaust port is formed in the other end of the air suction pipe, and the suction nozzle is fixedly installed at the suction inlet; the heating part is installed on the air suction pipe, located on the inner side of the suction nozzle and connected with the suction nozzle in a heat conduction mode, and the temperature measuring element is installed on the air suction pipe and located on the side, close to the suction inlet, of the heating part; the air suction pipe is sleeved with the heat preservation pipe, the heat preservation pipe is located between the heating component and the discharging opening in an extending mode, and a fixing assembly is further installed outside the heat preservation pipe. The detection position of the temperature measuring element is close to the suction nozzle, so that the working temperature of the suction nozzle can be accurately detected, and the power of the heating component can be accurately adjusted; the heat preservation pipe is designed to enable the section of channel, between the heating component and the discharging port, of the air suction pipe to maintain the heating temperature, and blockage caused by cooling and solidification of soldering tin in the channel is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tin suckers, in particular to a tin gun tin sucking structure. Background Art

[0002] In the repair of electronic appliances, it is necessary to disassemble and replace damaged electronic components on circuit boards. Usually, a solder sucker is used to heat the solder joints of electronic components, and after the solder joints are melted, negative air pressure is used to effectively absorb the solder.

[0003] For example, the Chinese utility model patent with application number CN942117115 and application date 1994.05.05 discloses an electronic vacuum desoldering device, which is specifically composed of a control box, a desoldering handle and a miniature vacuum pump. The desoldering handle is connected to the vacuum pump through an air suction pipe. In the desoldering handle, the heating body is wrapped around the heat pipe, the front end of which is connected to the suction nozzle and communicated with its central through hole, and the rear end is connected to the transition sleeve in the sealing sleeve, and the suction cavity thereof is communicated with the conduit and connected to the air suction pipe to form a vacuum desoldering passage. In addition, a temperature control resistor is installed in the heating body to transmit the temperature signal of the suction nozzle, and a switch body is installed on the shell to control the opening and closing of the desoldering passage.

[0004] The electronic vacuum desoldering device in the prior art is designed with a desoldering handle, and the heating body is wound on the heat pipe. However, the temperature control resistor is located at the rear of the heat pipe, and the heating temperature at the end of the suction nozzle cannot be accurately detected. In addition, the tin slag enters the suction pipe through the suction cavity. The temperature of this passage is lower than that of the heat pipe, which easily causes the tin slag to block the pipe. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing temperature control resistor cannot accurately detect the heating temperature of the end of the suction nozzle, and the tin slag enters the suction pipe through the suction cavity. The temperature of this section of the channel is lower than the temperature of the heat pipe, which easily causes the tin slag to block the pipeline.

[0006] In order to solve the above technical problems, the utility model provides a technical solution of a tin gun tin suction structure:

[0007] The tin gun tin suction structure includes an air suction pipe, a suction nozzle, a heating component, a temperature measuring element and a heat preservation pipe, one end of the air suction pipe is provided with a suction port, the other end of the air suction pipe is provided with a discharge port, and the suction nozzle is fixedly installed at the suction port;

[0008] The heating component is installed on the suction pipe near the suction port, the heating component is located on the inner side of the suction nozzle and is thermally connected to the suction nozzle, the temperature measuring element is installed on the suction pipe, and the temperature measuring element is located on a side of the heating component near the suction port;

[0009] The heat preservation pipe is sleeved on the outside of the air intake pipe, the heat preservation pipe is extended and arranged between the heating component and the exhaust port, and a fixing component is also installed on the outside of the heat preservation pipe.

[0010] Furthermore, the suction nozzle is set on the outside of the suction port and the heating component, and a heat conduction pipe is also provided between the suction nozzle and the heating component.

[0011] Furthermore, a protective bracket is installed on the intake pipe, and the protective bracket is located on a side of the heating component close to the intake port. The temperature measuring element is fixedly installed on the protective bracket, and the temperature measuring element is also connected to a temperature measuring wire.

[0012] Furthermore, the heating component includes a heating wire and a first fixed tube, the first fixed tube is installed on the outside of the intake pipe close to the suction port, and the heating wire is wound around the outside of the first fixed tube.

[0013] Furthermore, the temperature measuring wire is installed inside the first fixed tube and extends along the outer wall of the insulation tube.

[0014] Furthermore, the heating wire is also connected to a heating conductor, and the heating conductor and the temperature measuring conductor are electrically connected to a temperature control module, and the temperature control module is used to receive a temperature signal detected by the temperature measuring element and adjust the heating power of the heating wire according to the temperature signal.

[0015] Furthermore, the fixing assembly includes a second fixing pipe, and the second fixing pipe is sleeved and arranged on the outside of the thermal insulation pipe.

[0016] Furthermore, the fixing assembly also includes a fixing flange, which is installed on the outside of the second fixing pipe, and the fixing flange is provided with a plurality of fixing holes distributed at circumferential intervals.

[0017] Compared with the prior art, the tin gun tin suction structure of the utility model has the following beneficial effects: the tin gun tin suction structure adopts the design form of an air suction pipe, a suction nozzle, a heating component, a temperature measuring element, a heat preservation pipe and a fixed component, wherein one end of the air suction pipe is provided with a suction port, the other end of the air suction pipe is provided with an exhaust port, the suction nozzle is fixedly installed at the suction port, the heating component is installed at the air suction pipe near the suction port, the heating component is located on the inner side of the suction nozzle and is thermally connected to the suction nozzle. The heating component can generate heat quickly, and the heat is conducted from the inside to the outside to the suction nozzle to effectively heat it up, thereby improving the heating efficiency and the heating speed. When the suction nozzle is close to the solder on the circuit board, the solder can be heated and melted to disassemble the electronic components.

[0018] Moreover, the temperature measuring element is installed on the air intake pipe, and the temperature measuring element is located on the side of the heating component close to the suction port, that is, the detection position of the temperature measuring element is arranged close to the suction nozzle. Compared with the existing temperature control resistor arranged at the rear of the heat pipe, it can accurately detect the working temperature of the suction port and the suction nozzle, and can accurately adjust the power of the heating component to meet the temperature requirements of melting solder. In addition, the outer sleeve of the air intake pipe is provided with an insulation pipe, which is arranged to extend between the heating component and the discharge port. A fixed component is also installed on the outside of the insulation pipe. The insulation pipe is designed so that the section of the air intake pipe between the heating component and the discharge port can maintain the heating temperature, ensuring the temperature balance of the entire air intake pipe, avoiding the cooling and solidification of the inhaled solder in the channel, and preventing the problem of tin slag blocking the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an internal schematic diagram of the tin gun tin absorption structure in the embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the cross section of the tin gun tin absorption structure at AA;

[0021] Figure 3 It is a front view schematic diagram of the tin gun tin suction structure in the embodiment of the utility model;

[0022] Figure 4 It is an explosion schematic diagram of the tin gun tin suction structure in the embodiment of the utility model;

[0023] In the figure: 1-intake pipe, 11-intake port, 12-exhaust port, 2-suction nozzle, 20-heat conduction pipe, 3-heating component, 30-heating wire, 31-first fixed pipe, 32-heating wire, 4-temperature measuring element, 41-protection bracket, 42-temperature measuring wire, 5-insulation pipe, 6-fixing component, 60-second fixed pipe, 61-fixing flange, 62-fixing hole, 7-temperature control module. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 4 As shown, a tin gun tin suction structure of an embodiment of the utility model includes an air suction pipe 1, a suction nozzle 2, a heating component 3, a temperature measuring element 4 and an insulation tube 5. One end of the air suction pipe 1 is provided with a suction port 11, and the other end of the air suction pipe 1 is provided with an exhaust port 12. The suction nozzle 2 is fixedly installed at the suction port 11.

[0029] The heating component 3 is installed on the intake pipe 1 near the suction port 11. The heating component 3 is located on the inner side of the suction nozzle 2 and is thermally connected to the suction nozzle 2. The temperature measuring element 4 is installed on the intake pipe 1, and the temperature measuring element 4 is located on the side of the heating component 3 near the suction port 11; the insulation pipe 5 is sleeved on the outside of the intake pipe 1, and the insulation pipe 5 is extended between the heating component 3 and the exhaust port 12. A fixing component 6 is also installed on the outside of the insulation pipe 5.

[0030] The tin gun tin suction structure adopts the design form of an air suction pipe 1, a suction nozzle 2, a heating component 3, a temperature measuring element 4, a heat preservation pipe 5 and a fixed component 6, wherein one end of the air suction pipe 1 is provided with an inlet 11, the other end of the air suction pipe 1 is provided with an outlet 12, the suction nozzle 2 is fixedly installed at the suction inlet 11, the heating component 3 is installed at the suction pipe 1 near the suction inlet 11, and the heating component 3 is located on the inner side of the suction nozzle 2 and is thermally connected to the suction nozzle 2. The heating component 3 can generate heat quickly, and the heat is conducted from the inside to the outside to the suction nozzle 2 to effectively heat it up, thereby improving the heating efficiency and the heating speed. When the suction nozzle 2 is close to the solder on the circuit board, the solder can be heated and melted to disassemble the electronic components.

[0031] Moreover, the temperature measuring element 4 is installed on the air intake pipe 1, and the temperature measuring element 4 is located on the side of the heating component 3 close to the suction port 11, that is, the detection position of the temperature measuring element 4 is arranged close to the suction nozzle 2. Compared with the existing temperature control resistor arranged at the rear of the heat pipe, it can accurately detect the working temperature of the suction port 11 and the suction nozzle 2, and can accurately adjust the power of the heating component 3 to meet the temperature requirements of melting solder. In addition, the outer sleeve of the air intake pipe 1 is provided with an insulation pipe 5, and the insulation pipe 5 is arranged to extend between the heating component 3 and the discharge port 12. A fixing component 6 is also installed on the outside of the insulation pipe 5. The insulation pipe 5 is designed so that the section of the air intake pipe 1 between the heating component 3 and the discharge port 12 can maintain the heating temperature, ensuring the temperature balance of the entire air intake pipe 1, avoiding the cooling and solidification of the inhaled solder in the channel, and preventing the problem of tin slag blocking the pipeline.

[0032] In this embodiment, the suction nozzle 2 is set outside the suction port 11 and the heating component 3, and a heat pipe 20 is also provided between the suction nozzle 2 and the heating component 3. The heat pipe 20 is provided between the suction nozzle 2 and the heating component 3, thereby improving the heat transfer efficiency between the heating component 3 and the suction nozzle 2. The heat pipe 20 can effectively transfer the heat of the heating component 3 to the suction nozzle 2, thereby achieving the purpose of quickly raising the heating temperature of the suction nozzle 2.

[0033] In addition, a protective bracket 41 is installed on the air intake pipe 1, and the protective bracket 41 is located on the side of the heating component 3 close to the suction port 11. The temperature measuring element 4 is fixedly installed on the protective bracket 41, and the temperature measuring element 4 is also connected to a temperature measuring wire 42. The protective bracket 41 is used to locate the installation position of the heating component 3 and the insulation pipe 5, and plays a role in reliably fixing the temperature measuring element 4.

[0034] Specifically, the heating component 3 includes a heating wire 30 and a first fixed tube 31. The first fixed tube 31 is installed on the outside of the air intake pipe 1 near the suction port 11, and the heating wire 30 is wound around the outside of the first fixed tube 31. The temperature measuring wire 42 is installed inside the first fixed tube 31 and extends along the outer wall of the insulation tube 5. The first fixed tube 31 provides a winding frame for the heating wire 30, and also allows the temperature measuring wire 42 to be safely passed through and transmitted.

[0035] As a further preferred solution, the heating wire 30 is also connected to a heating wire 32, and the heating wire 32 and the temperature measuring wire 42 are electrically connected to a temperature control module 7, and the temperature control module 7 is used to receive the temperature signal detected by the temperature measuring element 4, and adjust the heating power of the heating wire 30 according to the temperature signal. The temperature measuring element 4 is used to detect the working temperature of the nozzle 2 in real time, and the temperature control module 7 receives the temperature signal detected by the temperature measuring element 4. If the working temperature is lower than the set temperature, the heating wire 30 is controlled to increase the heating power; correspondingly, if the working temperature is lower than the set temperature, the heating wire 30 is controlled to reduce the heating power to ensure that the nozzle 2 is stably within the set temperature range.

[0036] In addition, the fixing assembly 6 includes a second fixing tube 60, which is set on the outside of the insulation tube 5. Specifically, the fixing assembly 6 also includes a fixing flange 61, which is installed on the outside of the second fixing tube 60, and a plurality of fixing holes 62 distributed at intervals in the circumferential direction are opened on the fixing flange 61. The heating tin-absorbing structure can be effectively fixed on the tin gun through the second fixing tube 60 and the fixing flange 61, and the discharge port 12 of the suction pipe 1 is connected to the tin slag receiving chamber, ensuring that the sucked tin slag can be smoothly stored in the receiving chamber.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A tin gun tin suction structure, characterized in that: It includes an air intake pipe, a suction nozzle, a heating component, a temperature measuring element and a heat preservation pipe, one end of the air intake pipe is provided with a suction port, the other end of the air intake pipe is provided with a discharge port, and the suction nozzle is fixedly installed at the suction port; The heating component is installed on the suction pipe near the suction port, the heating component is located on the inner side of the suction nozzle and is thermally connected to the suction nozzle, the temperature measuring element is installed on the suction pipe, and the temperature measuring element is located on a side of the heating component near the suction port; The heat preservation pipe is sleeved on the outside of the air intake pipe, the heat preservation pipe is extended and arranged between the heating component and the exhaust port, and a fixing component is also installed on the outside of the heat preservation pipe.

2. The tin gun tin absorption structure according to claim 1 is characterized in that: The suction nozzle is set on the outside of the suction port and the heating component, and a heat conduction pipe is also arranged between the suction nozzle and the heating component.

3. The tin gun tin absorption structure according to claim 1 is characterized in that: A protection bracket is also installed on the air intake pipe, and the protection bracket is located on a side of the heating component close to the suction port. The temperature measuring element is fixedly installed on the protection bracket, and the temperature measuring element is also connected to a temperature measuring wire.

4. The tin gun tin absorption structure according to claim 3 is characterized in that: The heating component includes a heating wire and a first fixed tube. The first fixed tube is installed on the outside of the air intake pipe close to the suction port, and the heating wire is wound around the outside of the first fixed tube.

5. The tin gun tin absorption structure according to claim 4 is characterized in that: The temperature measuring wire is installed inside the first fixed tube and extends along the outer wall of the insulation tube.

6. The tin gun tin absorption structure according to claim 5, characterized in that: The heating wire is also connected to a heating conductor, and the heating conductor and the temperature measuring conductor are electrically connected to a temperature control module, and the temperature control module is used to receive a temperature signal detected by the temperature measuring element and adjust the heating power of the heating wire according to the temperature signal.

7. The tin gun tin absorption structure according to claim 1 is characterized in that: The fixing assembly comprises a second fixing pipe, and the second fixing pipe is sleeved and arranged outside the thermal insulation pipe.

8. The tin gun tin absorption structure according to claim 7, characterized in that: The fixing assembly further comprises a fixing flange, which is mounted on the outside of the second fixing pipe and is provided with a plurality of fixing holes which are spaced apart circumferentially.

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