Heating device of optical fiber fusion splicer

Abstract

The utility model discloses an optical fiber fusion splicer heating device, which comprises an optical fiber clamping assembly, a fan assembly and a heating assembly, the optical fiber clamping assembly comprises a clamping seat, the clamping seat is provided with a plurality of optical fiber positioning holes and a plurality of ventilation holes, the plurality of optical fiber positioning holes are communicated with the left side surface and the right side surface of the clamping seat, and the fan assembly is communicated with the heating assembly. The plurality of ventilation holes are communicated with the upper and lower side surfaces of the clamping seat, and the plurality of optical fiber positioning holes are communicated with the clamping seat; an optical fiber which is sleeved by a heat-shrinkable sleeve is clamped by the optical fiber clamping assembly, the fan assembly and the heating assembly are installed at the upper end and the lower end of the optical fiber clamping assembly, the bottom of the optical fiber is heated through the electric heating wire, and the fan uniformly dissipates heat of the optical fiber at the bottom from the top through the ventilation hole, so that the heat-shrinkable sleeve is protected, and the service life of the optical fiber is prolonged. And meanwhile, the fan assembly and the heating assembly can be conveniently disassembled for replacement and maintenance, the heating wire or the fan with problems can be replaced, environmental protection is facilitated, and the durability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber fusion splicing, in particular to a heating device for an optical fiber fusion splicer. Background Art

[0002] Fiber fusion splicers are mainly used for the construction and maintenance of optical cables in optical communications. After the optical fibers are hot-melt connected, a heat shrink tubing is needed to cover the fusion point after the optical fibers are hot-melt connected, and then the heat shrink tubing is placed in a corresponding heating device for heat shrinkage, thereby reinforcing and protecting the fusion point.

[0003] The existing optical fiber fusion splicers still have some shortcomings in use. For example, the heating wire of the heating device of the optical fiber fusion splicer may break due to unknown factors, which will affect the overall working efficiency. Another example is that the fan component of the optical fiber fusion splicer may short-circuit the fan circuit due to unstable factors, which will affect the uniform heat effect. All current integrated multifunctional optical fiber fusion splicers will cause the overall efficiency to decrease due to the failure of one function, affecting the yield of the fusion, or being scrapped as a whole, affecting the economy and environmental protection. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a heating device for an optical fiber fusion splicer, in which an optical fiber that has been sleeved with a heat shrink tube is clamped in an optical fiber clamping assembly, a fan assembly and a heating assembly are installed at the upper and lower ends of the optical fiber clamping assembly, the bottom of the optical fiber is heated by an electric heating wire, and the fan evenly evacuates the heat from the bottom optical fiber from the top through the ventilation hole, which is beneficial to protecting the heat shrink tube and increasing the yield of the fusion splicing. At the same time, the fan assembly and the heating assembly can be easily disassembled for replacement and maintenance, and the problematic electric heating wire or fan can be replaced, which is beneficial to environmental protection and improves durability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A heating device for an optical fiber fusion splicer according to an embodiment of the utility model comprises:

[0007] An optical fiber clamping assembly, wherein the optical fiber clamping assembly includes a clamping seat, wherein the clamping seat is provided with a plurality of optical fiber positioning holes and a plurality of ventilation holes, wherein the plurality of optical fiber positioning holes are connected to the left and right sides of the clamping seat, wherein the plurality of ventilation holes are connected to the upper and lower sides of the clamping seat, and wherein the plurality of optical fiber positioning holes are connected to the clamping seat;

[0008] A fan assembly, the fan assembly is movably adapted on the top surface of the optical fiber clamping assembly, the fan assembly includes a base, a ventilation slot is provided at the bottom of the base, a fixing plate is provided on the bottom of the ventilation slot, a fan can be installed and removed on the fixing plate, and a fan switch knob and a fan gear knob for controlling the start, stop and rotation of the fan are provided on the side of the base;

[0009] A heating assembly, wherein the heating assembly is movably arranged on the bottom surface of the optical fiber clamping assembly, the heating assembly comprises a heating seat, a heating groove is arranged on the top of the heating seat, a plurality of heating wires can be installed and removed on the bottom of the heating groove, and a temperature switch knob and a temperature heating knob for controlling the start and stop and heating of the heating wire are arranged on the side of the heating seat.

[0010] According to some embodiments of the utility model, a temperature sensor and a temperature display screen are also provided on one side of the base, and the temperature sensor and the temperature display screen are electrically connected.

[0011] According to some embodiments of the utility model, the top surface and the bottom surface of the clamping seat are respectively provided with a first positioning column and a second positioning column, the bottom surface of the machine base is provided with a first positioning hole adapted to the first positioning column, and the top surface of the heating seat is provided with a second positioning hole adapted to the second positioning column.

[0012] According to some embodiments of the utility model, a plurality of air inlet holes connected to the ventilation slots are provided on the top of the fan.

[0013] According to some embodiments of the present invention, the air inlet holes are evenly arranged in an array on the top of the base.

[0014] According to some embodiments of the utility model, the fan assembly also includes a first power supply and a first mainboard arranged inside the base, and the fan switch knob, the fan gear knob, the first mainboard, and the fan are all electrically connected to the first power supply.

[0015] According to some embodiments of the utility model, the heating component also includes a second power supply and a second main board arranged inside the heating seat, and the temperature switch knob, the temperature heating knob, the second main board, and the heating wire are all electrically connected to the second power supply.

[0016] According to some embodiments of the present invention, the diameter of the air inlet hole is equal to the diameter of the ventilation hole.

[0017] According to some embodiments of the utility model, handles are provided on both the left and right sides of the base.

[0018] According to some embodiments of the present invention, a plurality of legs are provided at the bottom of the heating seat.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides a heating device for an optical fiber fusion splicer. An optical fiber that has been sleeved with a heat shrink tube is clamped by a fiber clamping assembly. A fan assembly and a heating assembly are installed at the upper and lower ends of the fiber clamping assembly. The bottom of the optical fiber is heated by the heating wire. The fan evenly disperses heat from the bottom optical fiber from the top through the ventilation hole, which is beneficial to protecting the heat shrink tube and increasing the yield of the fusion splicing. At the same time, the fan assembly and the heating assembly can be easily disassembled for replacement and maintenance. The problematic heating wire or fan can be replaced, which is beneficial to environmental protection and improves durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 A schematic diagram of the structure of the heating device for the optical fiber fusion splicer provided by the utility model;

[0023] Figure 2 This is one of the explosion schematic diagrams of the heating device of the optical fiber fusion splicer provided by the utility model;

[0024] Figure 3 The second explosion diagram of the heating device of the optical fiber fusion splicer provided by the utility model;

[0025] Figure 4 The third explosion diagram of the heating device of the optical fiber fusion splicer provided by the utility model;

[0026] Figure 5 for Figure 4 A full cross-sectional diagram;

[0027] Figure 6 for Figure 4 Schematic diagram of the full section at point C.

[0028] The markings in the figure are as follows:

[0029] The optical fiber clamping assembly 100, the clamping seat 110, the optical fiber positioning hole 120, the ventilation hole 130, the first positioning column (150), and the second positioning column (140); the fan assembly 200, the base 210, the ventilation slot 220, the fixing plate 230, the fan 240, the fan switch knob 250, the fan gear knob 260, the first positioning hole 270, the first main board 280, the air inlet 290, and the first power supply 2910; the heating assembly 300, the heating seat 310, the heating slot 320, the heating wire 330, the temperature switch knob 340, the temperature heating knob 350, the second power supply 360, the second main board 370, and the second positioning hole 380; the temperature sensor 400; the temperature display screen 500; the handle 600; and the tripod 700. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships 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 device or element referred to 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.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Specifically, please refer to Figure 1-3The fiber fusion splicer heating device specifically includes: a fiber clamping assembly 100, a fan assembly 200 and a heating assembly 300. The fiber clamping assembly 100 includes a clamping seat 110, and the clamping seat 110 is provided with a plurality of fiber positioning holes 120 and a plurality of ventilation holes 130. The plurality of fiber positioning holes 120 are connected to the left and right sides of the clamping seat 110, and the plurality of ventilation holes 130 are connected to the upper and lower sides of the clamping seat 110. The plurality of fiber positioning holes 120 are connected to the clamping seat 110. The fan assembly 200 is movably adapted on the top surface of the fiber clamping assembly 100, and the fan assembly 200 includes a base 210, and the bottom of the base 210 is provided with The ventilation slot 220 has a fixing plate 230 disposed on the bottom of the ventilation slot 220, on which a fan 240 can be installed and removed, and a fan switch knob 250 and a fan gear knob 260 for controlling the start, stop and rotation of the fan 240 are disposed on the side of the machine base 210; the heating component 300 is movably arranged on the bottom surface of the optical fiber clamping component 100, and the heating component 300 includes a heating seat 310, and a heating slot 320 is disposed on the top of the heating seat 310, and a plurality of heating wires 330 can be installed and removed on the bottom of the heating slot 320, and a temperature switch knob 340 and a temperature heating knob 350 for controlling the start, stop and heating of the heating wire 330 are disposed on the side of the heating seat 310.

[0035] The utility model provides a heating device for an optical fiber fusion splicer. The optical fiber that has been sleeved with a heat shrink tube is clamped by a fiber clamping assembly 100. The fan assembly 200 and the heating assembly 300 are installed at the upper and lower ends of the fiber clamping assembly 100. The bottom of the optical fiber is heated by the heating wire 330. The fan 240 evenly disperses heat from the bottom optical fiber from the top through the ventilation hole 130, which is beneficial to protecting the heat shrink tube and increasing the yield of the fusion. At the same time, the fan assembly 200 and the heating assembly 300 can be easily disassembled for replacement and maintenance. The problematic heating wire 330 or the fan 240 can be replaced, which is beneficial to environmental protection and improves durability.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Example 1

[0039] Please refer to Figure 1-3 A heating device for an optical fiber fusion splicer, comprising an optical fiber clamping assembly 100, a fan assembly 200 and a heating assembly 300, wherein the optical fiber clamping assembly 100 comprises a clamping seat 110, and the clamping seat 110 is provided with a plurality of optical fiber positioning holes 120 and a plurality of ventilation holes 130, wherein the plurality of optical fiber positioning holes 120 are connected to the left and right sides of the clamping seat 110, and the plurality of ventilation holes 130 are connected to the upper and lower sides of the clamping seat 110, and the plurality of optical fiber positioning holes 120 are connected to the clamping seat 110; the fan assembly 200 is movably adapted on the top surface of the optical fiber clamping assembly 100, and the fan assembly 200 comprises an organic seat 210, and the bottom of the organic seat 210 is provided with The ventilation slot 220 has a fixing plate 230 disposed on the bottom of the ventilation slot 220, on which a fan 240 can be installed and removed, and a fan switch knob 250 and a fan gear knob 260 for controlling the start, stop and rotation of the fan 240 are disposed on the side of the machine base 210; the heating component 300 is movably arranged on the bottom surface of the optical fiber clamping component 100, and the heating component 300 includes a heating seat 310, and a heating slot 320 is disposed on the top of the heating seat 310, and a plurality of heating wires 330 can be installed and removed on the bottom of the heating slot 320, and a temperature switch knob 340 and a temperature heating knob 350 for controlling the start, stop and heating of the heating wire 330 are disposed on the side of the heating seat 310.

[0040] Through the above structural design, the optical fiber clamping assembly 100 is used to insert the optical fiber that has been sleeved with a heat shrink tube into the optical fiber positioning hole 120 of the clamping seat 110, and the fusion point on the optical fiber is placed on the ventilation hole 130 to maximize its contact with the flow of hot air; in this embodiment, the number of optical fiber positioning holes 120 is five, all of which are horizontally arranged and connected to the left and right sides of the clamping seat 110, and the ventilation hole 130 is connected from the top to the bottom of the clamping seat 110, and the position of the ventilation hole 130 corresponds to the position of the optical fiber positioning hole 120. The two are connected to each other, so that the optical fiber on the optical fiber positioning hole 120 can obtain better heat transfer, so that the optical fiber welding process can obtain more uniform heat to complete the welding; the machine base 210 can be installed and removed on the top of the clamping base 110, and the first alignment hole and the first alignment column can cooperate to accurately perform alignment connection. The top of the machine base 210 is provided with a ventilation hole 130, and the ventilation hole 130 is used for the fan 240 to introduce the wind outside the machine base 210 into the inside of the machine base 210, so that the air duct is single and controllable without turbulence;

[0041] The fixing plate 230 is used to provide a fixing place for the fan 240. The fan 240 can be assembled and disassembled on the fixing plate 230, which is convenient for later replacement. According to different needs, the fan 240 of different power or size can be replaced; the fan switch knob 250 is used to control the start and stop of the fan 240, and the fan gear knob 260 is used to control the wind speed of the fan 240, which is convenient for controlling the temperature change in the device;

[0042] The heating seat 310 can be installed and removed at the bottom of the clamping seat 110. Through the cooperation of the second alignment hole and the second alignment column, the alignment connection can be accurately performed. The heating seat 310 is used to provide a stable place for the heating wire 330. The heating wire 330 is used to provide heat for the optical fiber on the clamping seat 110. There are five heating wires 330, which correspond to the five optical fiber positioning holes 120 respectively. The heating wires 330 are transmitted upward through the ventilation holes 130 to reach the optical fiber. The temperature switch knob 340 is used to control the start and stop of the heating wire 330. The temperature heating knob 350 is used to control the power output of the heating wire 330, which is conducive to the temperature change in the control device. The heating wire 330 can be installed and removed on the heating seat 310, which is conducive to later replacement. According to different needs, the heating wire 330 with different values ​​can be replaced to meet the needs.

[0043] By clamping the optical fiber clamping assembly 100, the fan assembly 200 and the heating assembly 300 are installed at the upper and lower ends of the optical fiber clamping assembly 100, and the bottom of the optical fiber is heated by the heating wire 330. The fan 240 evenly disperses the heat from the top to the underlying optical fiber through the ventilation hole 130, which is beneficial to protecting the heat shrinkable tube and increasing the yield of the fusion splicing. At the same time, the fan assembly 200 and the heating assembly 300 can also be easily disassembled for replacement and maintenance. The problematic heating wire 330 or fan 240 can be replaced, which is beneficial to environmental protection and improves durability.

[0044] Specifically, a temperature sensor 400 and a temperature display screen 500 are further disposed on one side of the base 210. The temperature sensor 400 and the temperature display screen 500 are electrically connected.

[0045] Through the above structural design, the temperature sensor 400 senses the temperature of the optical fiber fusion environment and converts it into a signal to reach the temperature display screen 500, so that the temperature data can be obtained intuitively, which is conducive to adjusting the temperature.

[0046] Specifically, the top surface and bottom surface of the clamping seat 110 are respectively provided with a first positioning column 150 and a second positioning column 140, the bottom surface of the machine base 210 is provided with a first positioning hole 270 adapted to the first positioning column 150, and the top surface of the heating seat 310 is provided with a second positioning hole 380 adapted to the second positioning column 140.

[0047] Through the above structural design, the machine base 210 can be installed and removed on the top of the clamping base 110. Through the cooperation of the first alignment hole and the first alignment column, the heating base 310 can be installed and removed on the bottom of the clamping base 110. Through the cooperation of the second alignment hole and the second alignment column, the alignment connection can be accurately performed. When the heating base 310 or the machine base 210 needs to be replaced, it can be directly dismantled and replaced immediately without scrapping other components, which is beneficial to environmental protection.

[0048] Specifically, a plurality of air inlet holes 290 connected to the ventilation slots 220 are disposed on the top of the fan 240 , and the air inlet holes 290 are evenly arranged in an array on the top of the base 210 .

[0049] Through the above structural design, a ventilation hole 130 is set on the top of the base 210, and the ventilation hole 130 is used for the fan 240 to introduce the wind outside the base 210 into the inside of the base 210, so that the air duct is single and has no turbulence. Example 2

[0050] The heating device of the optical fiber fusion splicer provided in Example 1 is further optimized. Specifically, Figure 4 As shown, the fan assembly 200 also includes a first power supply 2910 and a first main board 280 arranged inside the base 210, and the fan switch knob 250, the fan gear knob 260, the first main board 280, and the fan 240 are all electrically connected to the first power supply 2910.

[0051] Through the above structural design, the first power supply 2910 and the first mainboard 280 are both built into the base 210, and the first power supply 2910 is electrically connected to the first mainboard 280. The first mainboard 280 controls the fan switch knob 250 and the fan gear number knob 260. Turning the fan switch knob 250 controls the first mainboard 280 to control the operation of the fan 240, and the fan gear number knob 260 controls the power output of the fan 240. Example 3

[0052] The heating device of the optical fiber fusion splicer provided in Example 1 or 2 is further optimized, such as Figure 5 As shown, the heating component 300 also includes a second power supply 360 and a second main board 370 arranged inside the heating seat 310, and the temperature switch knob 340, the temperature heating knob 350, the second main board 370, and the heating wire 330 are all electrically connected to the second power supply 360.

[0053] Through the above structural design, the second power supply 360 and the second main board 370 are both built into the heating seat 310, and the second power supply 360 is electrically connected to the second main board 370. The second main board 370 controls the temperature switch knob 340 and the temperature heating knob 350. Twisting the temperature switch knob 340 controls the second main board 370 to control the heating wire 330 to start, and the temperature heating knob 350 controls the power output of the heating wire 330.

[0054] Specifically, the diameter of the air inlet hole 290 is equal to the diameter of the ventilation hole 130 .

[0055] Through the above structural design, the aperture of the air inlet hole 290 is equal to the aperture of the ventilation hole 130, which is beneficial to the stability of the air duct and balanced air intake.

[0056] Specifically, handles 600 are disposed on both the left and right sides of the base 210 .

[0057] Through the above structural design, the handle 600 is used for manual loading and unloading of the machine base 210 , and the structure is simple and easy to operate.

[0058] Specifically, a plurality of legs 700 are disposed at the bottom of the heating seat 310 .

[0059] Through the above structural design, the stand 700 is used to stabilize the heating seat 310 .

[0060] The use process of the heating device for optical fiber fusion splicer provided by the utility model is as follows:

[0061] The machine base 210 is installed on the top of the clamping base 110 through the cooperation of the first alignment hole and the first alignment column, and the heating base 310 is installed on the bottom of the clamping base 110 through the cooperation of the second alignment hole and the second alignment column. The optical fiber that has been sleeved with the heat shrink tube is inserted into the optical fiber positioning hole 120 of the clamping base 110, and the fusion point on the optical fiber is placed on the ventilation hole 130. The fan switch knob 250 is manually turned to control the start of the fan 240, and the temperature switch knob 340 is manually turned to control the start of the heating wire 330. Observe the value on the temperature display screen 500, manually turn the fan gear knob 260 to control the wind speed of the fan 240, and manually turn the temperature heating knob 350 to control the power output of the heating wire 330. After the heat shrinkage is completed, turn off the machine and take out the optical fiber.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heating device for an optical fiber fusion splicer, characterized in that: include: An optical fiber clamping assembly (100), the optical fiber clamping assembly (100) comprising a clamping seat (110), the clamping seat (110) being provided with a plurality of optical fiber positioning holes (120) and a plurality of ventilation holes (130), the plurality of optical fiber positioning holes (120) being connected to left and right side surfaces of the clamping seat (110), the plurality of ventilation holes (130) being connected to upper and lower side surfaces of the clamping seat (110), and the plurality of optical fiber positioning holes (120) being connected to the clamping seat (110); A fan assembly (200), the fan assembly (200) being movably adapted on the top surface of the optical fiber clamping assembly (100), the fan assembly (200) comprising a base (210), a ventilation slot (220) being provided at the bottom of the base (210), a fixing plate (230) being provided at the bottom of the ventilation slot (220), a fan (240) being detachably mountable on the fixing plate (230), and a fan switch knob (250) and a fan gear knob (260) for controlling the start, stop and rotation of the fan (240) being provided on the side of the base (210); A heating assembly (300) is movably arranged on the bottom surface of the optical fiber clamping assembly (100), the heating assembly (300) comprises a heating seat (310), a heating groove (320) is arranged on the top of the heating seat (310), a plurality of heating wires (330) can be installed and removed on the bottom of the heating groove (320), and a temperature switch knob (340) and a temperature heating knob (350) for controlling the start and stop and heating of the heating wire (330) are arranged on the side of the heating seat (310).

2. The heating device for optical fiber fusion splicer according to claim 1, characterized in that: A temperature sensor (400) and a temperature display screen (500) are also provided on one side of the machine base (210); the temperature sensor (400) and the temperature display screen (500) are electrically connected.

3. The heating device for optical fiber fusion splicer according to claim 2, characterized in that: The top surface and bottom surface of the clamping seat (110) are respectively provided with a first positioning column (150) and a second positioning column (140); the bottom surface of the machine base (210) is provided with a first positioning hole (270) matched with the first positioning column (150); and the top surface of the heating seat (310) is provided with a second positioning hole (380) matched with the second positioning column (140).

4. The heating device for optical fiber fusion splicer according to claim 1, characterized in that: A plurality of air inlet holes (290) connected to the ventilation slots (220) are provided on the top of the fan (240).

5. The heating device for optical fiber fusion splicer according to claim 4, characterized in that: The air inlet holes (290) are evenly arranged in an array on the top of the machine base (210).

6. The heating device for optical fiber fusion splicer according to any one of claims 1 to 5, characterized in that: The fan assembly (200) further comprises a first power supply (2910) and a first mainboard (280) arranged inside the machine base (210); the fan switch knob (250), the fan gear knob (260), the first mainboard (280), and the fan (240) are all electrically connected to the first power supply (2910).

7. The heating device for optical fiber fusion splicer according to claim 6, characterized in that: The heating component (300) further comprises a second power source (360) and a second main board (370) arranged inside the heating seat (310); the temperature switch knob (340), the temperature heating knob (350), the second main board (370), and the heating wire (330) are all electrically connected to the second power source (360).

8. The heating device for optical fiber fusion splicer according to claim 4, characterized in that: The diameter of the air inlet hole (290) is equal to the diameter of the ventilation hole (130).

9. The heating device for optical fiber fusion splicer according to claim 1, characterized in that: Handles (600) are provided on both the left and right sides of the machine base (210).

10. The heating device for optical fiber fusion splicer according to claim 1, characterized in that: A plurality of foot stands (700) are provided at the bottom of the heating seat (310).

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