Electromagnetic induction heating device for tail tube of optical device

Abstract

The utility model provides an electromagnetic induction heating device for an optical device tail tube, which comprises an induction coil and a power supply module, one end of the induction coil is connected with the power supply module, and the other end of the induction coil is connected with the power supply module; the induction coil is used for being arranged on the peripheral side of the tail pipe, the power module is used for transmitting alternating current to the induction coil, the induction coil generates an alternating magnetic field on the peripheral side of the tail pipe under the action of the alternating current, and the tail pipe generates heat under the action of the alternating magnetic field so that heating of the tail pipe can be achieved. In the structure, the induction coil does not need to be in contact with the tail pipe, so that the tail pipe cannot be damaged due to clamping in the heating process of the tail pipe, and the problem of poor contact does not exist.

Description

Technical Field

[0001] This utility model relates to the field of optical communication technology, and in particular to an electromagnetic induction heating device for the tail tube of an optical device. Background Technology

[0002] In the field of optical communication technology, optical devices are crucial components, and their performance directly affects the transmission quality of optical signals. The pigtail of an optical device is an important component, used for assembling and fixing optical coupling elements and protecting the output optical fiber. During the manufacturing process of optical devices, the heating treatment of the pigtail is a critical step, directly affecting the coupling efficiency between the pigtail and the optical coupling elements, as well as the long-term reliability of the device. Furthermore, for optical devices, especially multi-channel parallel integrated optical devices, heating the pigtail is necessary during rework to facilitate the removal of solder and adhesive, and to allow for rework.

[0003] Existing solutions for heating the tail tube of optical devices mainly utilize the principle of resistance heating. A heating fixture is clamped onto the tail tube, and heating is achieved by the resistance formed by the contact surface between the heating fixture and the tail tube. This method has low heating efficiency and requires good contact between the heating fixture and the tail tube being heated. If the clamping force of the heating fixture on the tail tube is too great, it will cause indentations or scratches, damaging the tail tube. If the clamping force is too small, it will lead to poor contact, which may result in problems such as leakage or sparks.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] The problem this invention aims to solve is how to prevent damage to the tail tube caused by indentation or poor contact during the heating process of the heating fixture when heating the tail tube of an optical device.

[0006] In a first aspect, an electromagnetic induction heating device for the tail tube of an optical device is provided, comprising: an induction coil 1 and a power supply module 2, wherein:

[0007] One end of the induction coil 1 is connected to the power module 2, and the other end of the induction coil 1 is connected to the power module 2.

[0008] The induction coil 1 is placed around the tail tube 3, and the power module 2 is used to transmit alternating current to the induction coil 1. Under the action of the alternating current, the induction coil 1 generates an alternating magnetic field around the tail tube 3, and the tail tube 3 generates heat under the action of the alternating magnetic field to achieve heating of the tail tube 3.

[0009] Preferably, the induction coil 1 includes a first coil portion 11, a first positive electrode portion 12, and a first negative electrode portion 13, wherein:

[0010] The first coil portion 11 includes a coil with multiple turns of coils wrapped around it. One end of the first coil portion 11 extends outward to form the first positive electrode portion 12, and the other end of the first coil portion 11 extends outward to form the first negative electrode portion 13.

[0011] The first coil part 11 is placed on the periphery of the tail tube 3 and generates an alternating magnetic field under the action of alternating current; the first positive part 12 is connected to the power module 2, and the first negative part 13 is connected to the power module 2.

[0012] Preferably, the first coil portion 11 is sleeved on the periphery of the tail tube 3, the first positive electrode portion 12 is parallel to the extending direction of the tail tube 3, and the first negative electrode portion 13 is parallel to the extending direction of the tail tube 3.

[0013] Preferably, the first coil portion 11 is sleeved on the periphery of the tail tube 3, the first positive electrode portion 12 forms a first preset angle with the extension direction of the tail tube 3, and the first negative electrode portion 13 forms a second preset angle with the extension direction of the tail tube 3.

[0014] The first preset angle and the second preset angle are both 60 degrees to 90 degrees.

[0015] Preferably, a first temperature sensor 4 is provided between the first coil section 11 and the tail tube 3.

[0016] Preferably, the induction coil 1 includes a second coil portion 14, a third coil portion 15, a connecting portion 16, a second positive electrode portion 17, and a second negative electrode portion 19, wherein:

[0017] Both the second coil portion 14 and the third coil portion 15 include at most two turns of coil; one end of the second coil portion 14 extends outward to form the second positive electrode portion 17, and the other end of the second coil portion 14 is connected to the connecting portion 16 to connect with the third coil portion 15 through the connecting portion 16; one end of the third coil portion 15 extends outward to form the second negative electrode portion 19;

[0018] Both the second positive electrode portion 17 and the second negative electrode portion 19 are connected to the power module 2;

[0019] The second coil section 14, the connecting section 16, and the third coil section 15 partially surround the outer periphery of the tail tube 3. The second coil section 14, the connecting section 16, and the third coil section 15 are used to generate an alternating magnetic field under the action of alternating current.

[0020] Preferably, a second temperature sensor 5 is provided at the inner coil position of both the second coil section 14 and the third coil section 15.

[0021] Preferably, the outer layer of the induction coil 1 is provided with an insulating layer 18.

[0022] Preferably, the electromagnetic induction heating device for the tail tube of the optical device further includes a cooling unit 6, which is connected to the power module 2.

[0023] The cooling unit 6 is used to deliver coolant to the induction coil 1 through the liquid delivery pipe inside the power module 2 in order to regulate the temperature of the induction coil 1.

[0024] Preferably, the cooling unit 6 specifically includes: a water tank 61 and a water pump 62, wherein:

[0025] The water tank 61 and the water pump 62 are connected, and both the water tank 61 and the water pump 62 are connected to the power module 2. The power module 2 is electrically connected to the water pump 62.

[0026] The water pump 62 is used to draw out the coolant from the water tank 61 and transmit it to the induction coil 1 after passing through the liquid delivery pipe inside the power module 2. After passing through the induction coil 1, the coolant is transmitted back to the liquid delivery pipe inside the power module 2 and then back to the water tank 61 from the liquid delivery pipe inside the power module 2.

[0027] This invention provides an electromagnetic induction heating device for the tail tube of an optical device, comprising: an induction coil 1 and a power supply module 2, wherein: one end of the induction coil 1 is connected to the power supply module 2, and the other end of the induction coil 1 is connected to the power supply module 2; the induction coil 1 is used to be placed around the tail tube 3, and the power supply module 2 is used to transmit alternating current to the induction coil 1; the induction coil 1 generates an alternating magnetic field around the tail tube 3 under the action of the alternating current, and the tail tube 3 generates heat under the action of the alternating magnetic field to achieve heating of the tail tube 3; in the above structure, the induction coil 1 does not need to be in contact with the tail tube 3, so the tail tube 3 will not be damaged due to clamping during the heating process, and there is no problem of poor contact. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of an electromagnetic induction heating device for an optical device tail tube provided in an embodiment of this utility model;

[0030] Figure 2 A schematic diagram of the structure of the induction coil in an electromagnetic induction heating device for the tail tube of an optical device provided in this embodiment of the present invention;

[0031] Figure 3 Another electromagnetic induction heating device for the tail tube of an optical device provided in this embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the structure of the induction coil in another electromagnetic induction heating device for the tail tube of an optical device provided in this embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the structure of another electromagnetic induction heating device for the tail tube of an optical device provided in this embodiment of the present utility model;

[0034] Figure 6 A schematic diagram of the structure of the induction coil in another electromagnetic induction heating device for the tail tube of an optical device provided in this embodiment of the present invention;

[0035] Figure 7 A schematic diagram of an electromagnetic induction heating device for an optical device tail tube provided in an embodiment of this utility model;

[0036] The attached figures are numbered as follows:

[0037] Induction coil 1; first coil section 11; first positive electrode section 12; first negative electrode section 13; second coil section 14; third coil section 15; connecting section 16; second negative electrode section 19; second positive electrode section 17; insulating layer 18; power module 2; tailpipe 3; first temperature sensor 4; second temperature sensor 5; cooling unit 6; water tank 61; water pump 62. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0040] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more. Furthermore, for example, the description may use the prefix "A" or "B" to describe the same type of nouns as two independent entities. In this case, the features defined with "A" and "B" are used only to distinguish between similar entities and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0041] In describing some embodiments, the terms "coupled," "coupled," and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "connected" or "coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other, such as "optical coupling" or "wireless connection." The embodiments disclosed herein are not necessarily limited to the scope of this invention.

[0042] In the description of this utility model, "A and / or B" will be used to represent specific features. The corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0043] As used in this invention, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the specified value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the specified quantity, i.e., the limitations of the measurement system.

[0044] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as openly inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples; that is, although they may be incorporated into embodiments or examples using the above terms for reasons such as order and position, it does not limit them to be incorporated in combination by a single embodiment or example.

[0045] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1:

[0047] This embodiment provides an electromagnetic induction heating device for the tail tube of an optical device, such as... Figure 1 As shown, it includes: an induction coil 1 and a power supply module 2, wherein:

[0048] One end of the induction coil 1 is connected to the power module 2, and the other end of the induction coil 1 is connected to the power module 2. The induction coil 1 is placed around the tail tube 3, and the power module 2 is used to transmit alternating current to the induction coil 1. Under the action of the alternating current, the induction coil 1 generates an alternating magnetic field around the tail tube 3, and the tail tube 3 generates heat under the action of the alternating magnetic field to achieve heating of the tail tube 3.

[0049] In this embodiment, the tail tube 3 is a conventional optical device tail tube. The tail tube 3 can be used for assembling and fixing optical path coupling elements and for protecting the output optical fiber. The tail tube 3 can be sintered onto the optical device housing to form an integrated housing structure for the optical device. Simultaneously, the corresponding optical fibers can be assembled onto the tail tube 3 using adhesive. The spacing between adjacent tail tubes 3 on the optical device housing can be 6 mm, and the outer diameter of the tail tube 3 can be 3 mm.

[0050] In the process of manufacturing optical devices, in order to ensure the coupling efficiency of tail tube 3 with the optical path coupling element and the long-term reliability of the device, tail tube 3 needs to be heated.

[0051] In this embodiment, the power supply module 2 is used for current signal processing and transmission. The power supply module 2 includes a rectifier circuit unit, a filter circuit unit, and an inverter circuit unit. The power supply module 2 converts the input current into direct current (DC) through the rectifier circuit unit, then smoothly filters the DC current through the filter circuit unit, and finally converts the filtered DC current into alternating current of the required frequency through the inverter circuit unit and transmits it to the induction coil 1. The inverter circuit unit enables adjustable frequency output current, suitable for different structures of the optical device tail tube 3, and achieves adjustable heating function. Different frequencies of alternating current are used to adapt to different models of tail tube 3.

[0052] The induction coil 1 is not in contact with the tail tube of the optical device. The induction coil 1 is electrically connected to the power module 2 and is placed on the periphery or side of the tail tube 3 to provide an alternating magnetic field. Figure 1 and Figure 2 As shown, an insulating layer 18 is provided on the outer layer of the induction coil 1 to prevent short circuits caused by electrical connection between the tail tube 3 and the induction coil 1. Therefore, the heating method adopted by this device does not have the problem of poor contact, nor will it damage the tail tube 3 due to contact problems. At the same time, because the alternating magnetic field generated by the induction coil 1 around the tail tube 3 is uniform, the heat generation of the tail tube 3 is stable, thus making the heating more stable. The induction coil 1 can be made of a hollow tube. The hollow tube structure can reduce the Joule heating effect caused by the skin effect, thereby improving the induction heating efficiency.

[0053] In this embodiment, the induction coil 1 can be a hollow copper tube, with an inner diameter of 1±0.1mm and an outer diameter of 2±0.1mm. The induction coil 1 can be designed as an open-loop U-shaped structure to match the structure of optical devices with smaller channel spacing, while reducing thermal efficiency and avoiding temperature overshoot. The output current frequency of the power module 2 can be in a high-frequency band, such as 10kHz to 250kHz, to match the structure of the tail tube 3 and thus the induction coil 1.

[0054] Furthermore, in this embodiment, as Figure 1 and Figure 2 As shown, the induction coil 1 includes a first coil portion 11, a first positive electrode portion 12, and a first negative electrode portion 13, wherein:

[0055] The first coil section 11 includes a coil with multiple turns of coils superimposed around it. One end of the first coil section 11 extends outward to form a first positive electrode section 12, and the other end of the first coil section 11 extends outward to form a first negative electrode section 13. The first coil section 11 is used to be placed around the tail tube 3 and generates an alternating magnetic field under the action of alternating current. The first positive electrode section 12 is connected to the power module 2, and the first negative electrode section 13 is connected to the power module 2.

[0056] The first coil portion 11 is fitted around the periphery of the tail tube 3, the first positive electrode portion 12 is parallel to the extending direction of the tail tube 3, and the first negative electrode portion 13 is parallel to the extending direction of the tail tube 3.

[0057] The aforementioned induction coil 1 is applicable when the distance between adjacent tail tubes 3 on the optical device is large. In this case, the first positive electrode portion 12 and the first negative electrode portion 13 of the induction coil 1 can be placed between adjacent tail tubes 3 and extended to maximize the use of the space between the tail tubes 3. In this embodiment, the first coil portion 11 is sleeve-shaped and fits around the tail tube 3, while the first coil portion 11 does not contact the tail tube 3.

[0058] Furthermore, when the distance between two adjacent tail tubes 3 on the optical device is small, there is not enough space between the adjacent tail tubes 3 for the induction coil 1 to extend. Therefore, this embodiment also involves the following design:

[0059] like Figure 3 and Figure 4 As shown, the first coil portion 11 is sleeved on the periphery of the tail tube 3, the first positive electrode portion 12 forms a first preset angle with the extension direction of the tail tube 3, and the first negative electrode portion 13 forms a second preset angle with the extension direction of the tail tube 3; both the first preset angle and the second preset angle are 60 degrees to 90 degrees.

[0060] Wherein, both the first preset angle and the second preset angle can be 60 degrees, both the first preset angle and the second preset angle can be 75 degrees, and both the first preset angle and the second preset angle can be 90 degrees (e.g., ...). Figure 3 (As shown).

[0061] Furthermore, considering that under a certain alternating current, the strength of the alternating magnetic field is positively correlated with the number of turns of induction coil 1, the larger the number of turns of induction coil 1, the stronger the alternating magnetic field, the higher the heat generation of tail tube 3, and the temperature of induction coil 1 will also rise synchronously. When the temperature of induction coil 1 rises too much, it will cause certain damage to induction coil 1. Therefore, it is necessary to monitor the temperature of induction coil 1 in real time during the heating process to monitor and warn of the heating process, and to facilitate further temperature control in the future. Therefore, this embodiment also involves the following design:

[0062] like Figure 3 and Figure 4 As shown, a first temperature sensor 4 is provided between the first coil section 11 and the tail tube 3.

[0063] In this embodiment, the first temperature sensor 4 can be connected to the power module 2. The first temperature sensor 4 uploads the real-time monitored temperature data to the power module 2. The power module 2 can then issue an early warning or adjust the temperature accordingly based on the uploaded temperature data. Specifically, the power module 2 also includes a temperature conversion unit and a temperature control unit. The temperature conversion unit converts the temperature signal acquired by the temperature sensor in the induction coil 1 into a real-time voltage signal and sends it to the temperature control unit. The temperature control unit compares the received real-time voltage signal with a preset voltage signal and feeds the comparison result back to the rectifier circuit to adjust the alternating current transmitted to the induction coil 1, thereby adjusting the temperature of the induction coil 1 to match the preset temperature, thus achieving feedback regulation of the temperature of the induction coil 1. The preset voltage signal and the preset temperature are both set by those skilled in the art based on actual conditions.

[0064] Furthermore, in this embodiment, considering that the greater the number of turns of the induction coil 1, the greater the strength of the alternating magnetic field, the higher the heat generated by the tail tube 3, and the higher the temperature of the induction coil 1 and the tail tube 3, excessively high temperatures may lead to device damage during the heating process. Therefore, it is necessary to minimize the upper limit of the temperature during the heating process. Thus, this embodiment also involves the following design:

[0065] like Figure 5 and Figure 6 As shown, the induction coil 1 includes a second coil portion 14, a third coil portion 15, a connecting portion 16, a second positive electrode portion 17, and a second negative electrode portion 19, wherein: the second coil portion 14 and the third coil portion 15 each include at most two turns of coil; one end of the second coil portion 1 extends outward to form the second positive electrode portion 17, and the other end of the second coil portion 14 is connected to the connecting portion 16 to connect with the third coil portion 15 through the connecting portion 16; one end of the third coil portion 15 extends outward to form the second negative electrode portion 19, and the other end of the third coil portion 15 extends to the connecting portion 16 and connects with the second coil portion 14 through the connecting portion 16; the second positive electrode portion 17 and the second negative electrode portion 19 are both connected to the power module 2; the second coil portion 14, the connecting portion 16, and the third coil portion 15 partially surround the outer periphery of the tail tube 3, and the second coil portion 14, the connecting portion 16, and the third coil portion 15 are used to generate an alternating magnetic field under the action of alternating current.

[0066] In the above structure, the second coil section 14, the connecting section 16, and the third coil section 15 form a U-shaped structure that partially surrounds the tail tube 3. Since the second coil section 14 and the third coil section 15 have fewer turns, the magnetic field strength inside the induction coil 1 is greatly reduced, thus preventing damage to the tail tube 3 and the induction coil 1 due to excessively high temperature limits after alternating current is applied. Furthermore, since the extension directions of the second positive electrode section 17 and the second negative electrode section 19 are not positioned between adjacent tail tubes 3, this structure is suitable for optical device structures with smaller spacing between tail tubes 3. Additionally, the small size of this U-shaped structure also makes it suitable for applications involving localized heating of the tail tube 3.

[0067] Similarly, a temperature sensor is also required in the above structure to monitor the temperature during the heating process. Therefore, this embodiment also involves the following design:

[0068] like Figure 5 and Figure 6 As shown, a second temperature sensor 5 is provided at the inner coil position of both the second coil section 14 and the third coil section 15.

[0069] Furthermore, in this embodiment, while monitoring the temperature of the induction coil 1, it is also necessary to regulate the temperature of the induction coil 1 to further prevent damage to the induction coil 1 caused by excessive temperature. Therefore, this embodiment also involves the following design:

[0070] like Figure 5 and Figure 6 As shown, the electromagnetic induction heating device for the tail tube of the optical device further includes a cooling unit 6, which is connected to the power module 2. The cooling unit 6 is used to deliver coolant to the induction coil 1 through a liquid delivery pipe inside the power module 2 to regulate the temperature of the induction coil 1. Since the induction coil 1 is a hollow tube, the coolant can flow inside the hollow tube to regulate the temperature of the induction coil 1.

[0071] like Figure 7 As shown, the cooling unit 6 specifically includes a water tank 61 and a water pump 62, wherein the water tank 61 and the water pump 62 are connected, both the water tank 61 and the water pump 62 are connected to the power module 2, and the power module 2 is electrically connected to the water pump 62; the water pump 62 is used to draw coolant from the water tank 61 and transmit it to the induction coil 1 through the liquid delivery pipe inside the power module 2, and the coolant is transmitted back to the liquid delivery pipe inside the power module 2 after passing through the induction coil 1, and then back to the water tank 61 from the liquid delivery pipe inside the power module 2. The electronic components of the power module 2 are mounted on a circuit board, and the power module 2 is isolated from the liquid delivery pipe. The power module 2 provides current to the induction coil 1 on one hand, and delivers coolant to the induction coil 1 through the liquid delivery pipe on the other hand.

[0072] In this embodiment, the water tank 61 is used to store coolant, and the water pump 62 can be controlled by the power module 2 to draw coolant from the water tank 61. After passing through the water pump 62 and the power module 2 in sequence, the coolant flows into the positive terminal of the induction coil 1. Since the induction coil 1 is a hollow tube structure, the coolant can be transmitted inside the induction coil 1 to cool it. Then, the coolant is output from the negative terminal of the induction coil 1 and transmitted to the power module 2, and then transmitted back to the water tank 61 through the power module 2 to complete the circulation of coolant.

[0073] It should be noted that in this embodiment, the power module 2 includes multiple circuit-related units for completing the electrical connection between the induction coil 3 and the cooling unit 6. It also includes the liquid delivery pipe for transmitting coolant. The liquid delivery pipe and each circuit-related unit do not interfere with each other, thereby realizing their respective functions.

[0074] This embodiment provides an electromagnetic induction heating device for the tail tube of optical devices, which improves heating efficiency and heating speed. Due to the use of a non-contact heating structure, it will not cause external damage to the tail tube 3 and there is no risk of poor electrical contact. The temperature of the heating area can be collected in real time, and the power supply current can be adjusted through the feedback circuit to achieve precise temperature control. The heating depth and heating area can be precisely controlled by adjusting the heating frequency. The customized miniaturized inductor coil structure is suitable for the tail tube heating of miniaturized and multi-channel parallel integrated optical devices.

[0075] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic induction heating device for the tail tube of an optical device, characterized in that, include: Induction coil (1) and power supply module (2), wherein: One end of the induction coil (1) is connected to the power module (2), and the other end of the induction coil (1) is connected to the power module (2). The induction coil (1) is placed around the tail tube (3), and the power module (2) is used to transmit alternating current to the induction coil (1). Under the action of the alternating current, the induction coil (1) generates an alternating magnetic field around the tail tube (3), and the tail tube (3) generates heat under the action of the alternating magnetic field to achieve heating of the tail tube (3).

2. The electromagnetic induction heating device for the tail tube of an optical device according to claim 1, characterized in that, The induction coil (1) includes a first coil section (11), a first positive electrode section (12), and a first negative electrode section (13), wherein: The first coil portion (11) includes a coil with multiple turns of coils wrapped around it. One end of the first coil portion (11) extends outward to form the first positive electrode portion (12), and the other end of the first coil portion (11) extends outward to form the first negative electrode portion (13). The first coil part (11) is placed on the periphery of the tail tube (3) and generates an alternating magnetic field under the action of alternating current; the first positive part (12) is connected to the power module (2) and the first negative part (13) is connected to the power module (2).

3. The electromagnetic induction heating device for the tail tube of an optical device according to claim 2, characterized in that, The first coil part (11) is sleeved on the periphery of the tail tube (3), the first positive electrode part (12) is parallel to the extension direction of the tail tube (3), and the first negative electrode part (13) is parallel to the extension direction of the tail tube (3).

4. The electromagnetic induction heating device for the tail tube of an optical device according to claim 2, characterized in that, The first coil part (11) is sleeved on the periphery of the tail tube (3), the first positive electrode part (12) is at a first preset angle with the extension direction of the tail tube (3), and the first negative electrode part (13) is at a second preset angle with the extension direction of the tail tube (3). The first preset angle and the second preset angle are both 60 degrees to 90 degrees.

5. The electromagnetic induction heating device for the tail tube of an optical device according to claim 2, characterized in that, A first temperature sensor (4) is provided between the first coil section (11) and the tail tube (3).

6. The electromagnetic induction heating device for the tail tube of an optical device according to claim 1, characterized in that, The induction coil (1) includes a second coil section (14), a third coil section (15), a connecting section (16), a second positive electrode section (17), and a second negative electrode section (19), wherein: Both the second coil section (14) and the third coil section (15) include at most two turns of coil; one end of the second coil section (14) extends outward to form the second positive electrode section (17), and the other end of the second coil section (14) is connected to the connecting section (16) to connect with the third coil section (15) through the connecting section (16); one end of the third coil section (15) extends outward to form the second negative electrode section (19); The second positive electrode (17) and the second negative electrode (19) are both connected to the power module (2); The second coil section (14), the connecting section (16), and the third coil section (15) partially surround the outer periphery of the tail tube (3). The second coil section (14), the connecting section (16), and the third coil section (15) are used to generate an alternating magnetic field under the action of alternating current.

7. The electromagnetic induction heating device for the tail tube of an optical device according to claim 6, characterized in that, A second temperature sensor (5) is provided at the inner coil position of the coil of both the second coil section (14) and the third coil section (15).

8. The electromagnetic induction heating device for the tail tube of an optical device according to claim 1, characterized in that, An insulating layer (18) is provided on the outer layer of the induction coil (1).

9. The electromagnetic induction heating device for the tail tube of an optical device according to claim 1, characterized in that, The electromagnetic induction heating device for the tail tube of the optical device also includes a cooling unit (6), which is connected to the power module (2). The cooling unit (6) is used to deliver coolant to the induction coil (1) through the liquid delivery pipe inside the power module (2) to regulate the temperature of the induction coil (1).

10. The electromagnetic induction heating device for the tail tube of an optical device according to claim 9, characterized in that, The cooling unit (6) specifically includes: a water tank (61) and a water pump (62), wherein: The water tank (61) and the water pump (62) are connected together. Both the water tank (61) and the water pump (62) are connected to the power module (2), and the power module (2) is electrically connected to the water pump (62). The water pump (62) is used to draw out the coolant from the water tank (61) and transmit it to the induction coil (1) after passing through the liquid delivery pipe inside the power module (2). After passing through the induction coil (1), the coolant is transmitted back to the liquid delivery pipe inside the power module (2) and then back to the water tank (61) from the liquid delivery pipe inside the power module (2).

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