Sealing device

Abstract

The application discloses a sealing and welding device, and belongs to the technical field of laser emitter manufacturing. The sealing and welding device is characterized in that: a first supporting surface and a second supporting surface intersecting each other are arranged on a first electrode to form a bearing area for bearing a pipe base, so that the first supporting surface can be used for supporting a first outer wall of the pipe base, and the second supporting surface can be used for supporting a second outer wall of the pipe base; an avoiding area for avoiding a pipe cap is arranged on a second electrode, a press-welding part is arranged at the edge of the avoiding area, the pipe cap can be pressed on the pipe base by the press-welding part, a first welding section arranged opposite to the first supporting surface is used for pressing a first combining part of the pipe cap on a first inner wall of the pipe base, and a second welding section arranged opposite to the second supporting surface is used for pressing a second combining part of the pipe cap on a second inner wall of the pipe base, so that the pipe cap and the pipe base can be welded on different planes, and the sealing and welding device can be used for packaging laser emitters with the pipe cap and the pipe base sealed on different planes.

Description

Technical Field

[0001] This application belongs to the field of laser emitter manufacturing technology, specifically relating to a sealing and welding device. Background Technology

[0002] Traditional hermetic TO (Transistor Outline) is a coaxial package, with the cap and socket soldered to the same plane. The large bottom surface of the socket is mostly used for pin leads and flexible board soldering, which cannot achieve good heat dissipation. Heat dissipation can only be achieved through the side of the socket, but the side area is small and far away from the chip, resulting in poor heat dissipation performance.

[0003] If the cap and socket of the laser emitter are welded to different planes, the heat dissipation performance is optimized to a certain extent, but the structure cannot be reused for packaging in existing TO automated equipment, and therefore cannot achieve industrial automated production. Summary of the Invention

[0004] Purpose of the invention: This application provides a sealing and welding device, which aims to solve the technical problem that laser emitters with caps and bases welded on different planes cannot be packaged using existing TO automated equipment, thus preventing the realization of industrial automated production.

[0005] Technical solution: The sealing and welding device described in this application embodiment is used for sealing and welding the tube socket and tube cap of a laser emitter;

[0006] The sealing device includes:

[0007] The first electrode includes a first support surface and a second support surface that are intersected and formed between the first support surface and the second support surface. The support area is used to support the tube seat.

[0008] The second electrode has a clearance area, and the edge of the clearance area has a pressure weld portion protruding from the clearance area. The clearance area is used to avoid the tube cap, and the pressure weld portion is used to press the tube cap against the tube seat.

[0009] The pressure welding part includes a first welding section and a second welding section that are intersecting and connected. When the pressure welding part presses the pipe cap against the pipe seat, the first welding section and the first support surface are arranged opposite each other in a first direction, and the second welding section and the second support surface are arranged opposite each other in a second direction. The first direction is a direction perpendicular to the first support surface, and the second direction is a direction perpendicular to the second support surface. The first direction and the second direction intersect.

[0010] In some embodiments, the angle between the first direction and the second direction is α, the angle between the first support surface and the second support surface is β, and the angle between the first welded segment and the second welded segment is γ, wherein α = β = γ.

[0011] In some embodiments, the pressure welding portion presses the pipe cap against the pipe seat along a third direction, the third direction being the axial direction of the sealing welding device, and the angle between the third direction and the first direction and the second direction is δ, where δ = α / 2.

[0012] In some embodiments, the angle between the first direction and the second direction is α, and 60°≤α≤135°.

[0013] In some embodiments, the first direction is perpendicular to the second direction.

[0014] In some embodiments, the first support surface and / or the second support surface are provided with clearance grooves, which are used to avoid the pins of the laser emitter.

[0015] In some embodiments, the sealing device further includes a third electrode;

[0016] The bearing area is formed at one end of the first electrode, and the third electrode can be connected to the other end of the first electrode; wherein the third electrode and the second electrode are used to pass in electricity of different polarities, and the first electrode is powered through the third electrode;

[0017] or,

[0018] The avoidance area is located at one end of the second electrode, and the third electrode can be connected to the other end of the second electrode; wherein the third electrode and the first electrode are used to receive electricity of different polarities, and the second electrode is powered through the third electrode.

[0019] In some embodiments, when the pressure welding portion presses the pipe cap against the pipe seat, the orthographic projection of the first welding segment on the first support surface is located within the first support surface, and the orthographic projection of the second welding segment on the second support surface is located within the second support surface.

[0020] In some embodiments, the first electrode is provided with two material pick-up and drop-off grooves, which are disposed on both sides of the bearing area and communicate with the bearing area.

[0021] In some embodiments, the first electrode is provided with a limiting portion for positioning the tube seat, the limiting portion being disposed on the first support surface and / or the second support surface.

[0022] In some embodiments, the first electrode is a one-piece metal structure, and / or the second electrode is a one-piece metal structure.

[0023] In some embodiments, the first electrode includes:

[0024] First pole;

[0025] A first connection terminal is disposed at one end of the first pole post and is used to supply power to the first pole post; the bearing area is formed at the other end of the first pole post.

[0026] And / or,

[0027] The second electrode includes:

[0028] Second pole;

[0029] The second connection terminal is disposed at one end of the second pole post and is used to supply power to the second pole post. The avoidance area is disposed at the other end of the second pole post.

[0030] Beneficial effects: Compared with the prior art, the sealing welding device of this application embodiment includes: a first electrode, the first electrode including a first support surface and a second support surface that are intersected and formed between the first support surface and the second support surface, the support area being used to support the tube seat; a second electrode, the second electrode having a clearance area, the edge of the clearance area having a pressure welding part protruding from the clearance area, the clearance area being used to clearance the tube cap, the pressure welding part being used to press the tube cap against the tube seat; wherein, the pressure welding part includes a first welding segment and a second welding segment that are intersected and connected, when the pressure welding part presses the tube cap against the tube seat, the first welding segment and the first support surface are arranged opposite each other in a first direction, the second welding segment and the second support surface are arranged opposite each other in a second direction, the first direction being a direction perpendicular to the first support surface, the second direction being a direction perpendicular to the second support surface, and the first direction and the second direction intersecting. This sealing and welding device employs a dual-electrode structure applicable to existing TO automation equipment. By providing a first and second support surface on the first electrode, and having these surfaces intersect to form a support area for the tube seat, the first support surface supports the first outer wall of the tube seat, and the second support surface supports the second outer wall. Furthermore, by providing a clearance area on the second electrode to avoid the tube cap, and by providing a pressure welding section at the edge of the clearance area, the pressure welding section presses the tube cap against the tube seat. A first welding segment, positioned opposite the first support surface, presses the first joint of the tube cap against the first inner wall of the tube seat, and a second welding segment, positioned opposite the second support surface, presses the second joint of the tube cap against the second inner wall of the tube seat. This allows the tube cap and tube seat to be welded onto different planes, enabling application in existing TO automation equipment for encapsulating laser emitters with tube caps and tube seats welded onto different planes, thus achieving industrial automated production. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural schematic diagram of the sealing and welding device provided in the embodiments of this application;

[0033] Figure 2 yes Figure 1 A three-dimensional structural diagram of the first electrode of the middle sealing welding device;

[0034] Figure 3 yes Figure 2 A three-dimensional structural diagram of the center-sealing welding device after the laser emitter is placed;

[0035] Figure 4 This is a three-dimensional structural diagram of the first electrode viewed from another angle;

[0036] Figure 5 yes Figure 4 A magnified schematic diagram of a portion of region A in the middle;

[0037] Figure 6 This is a three-dimensional structural schematic diagram of the second electrode of the sealing and welding device in an embodiment of this application;

[0038] Figure 7 yes Figure 6 A magnified schematic diagram of a portion of region B in the middle;

[0039] Figure 8 This is a perspective view of the first electrode after the laser emitter has been placed.

[0040] Figure 9 This is an exploded structural diagram of the sealing and welding device provided in the embodiments of this application;

[0041] Figure 10 It is to observe from another angle Figure 9 Exploded view of the components of the center sealing welding device;

[0042] Figure 11 This is a schematic diagram of the main structure of the sealing and welding device provided in the embodiments of this application;

[0043] Figure 12 yes Figure 11 A cross-sectional view of the center sealing welding device along line OO;

[0044] Figure 13 yes Figure 12 A magnified schematic diagram of a portion of region C in the middle;

[0045] Figure 14 This is an exploded structural diagram of a component of a sealing and welding device provided in other embodiments of this application;

[0046] Figure 15 yes Figure 14 Schematic diagram of the cross-sectional structure of the center sealing welding device;

[0047] Figure 16 This is a three-dimensional structural diagram of the laser emitter according to the first embodiment of this application;

[0048] Figure 17 yes Figure 16 A schematic diagram of the assembly structure of the socket and pins of the laser emitter;

[0049] Figure 18 This is a three-dimensional structural diagram of the laser emitter according to the second embodiment of this application;

[0050] Figure 19 This is a three-dimensional structural diagram of the cap according to the second embodiment of this application;

[0051] Figure 20 yes Figure 18 A cross-sectional view of the laser emitter in the middle;

[0052] Figure 21 This is a three-dimensional structural diagram of the laser emitter according to the third embodiment of this application;

[0053] Figure 22 This is a front view schematic diagram of the laser emitter according to the third embodiment of this application;

[0054] Figure 23 yes Figure 21 A schematic cross-sectional view of the laser emitter along line AA;

[0055] Figure 24 This is a front view schematic diagram of the laser emitter according to the fourth embodiment of this application;

[0056] Reference numerals: 20-Sealing device; 200-First electrode; 201-First pole post; 202-First connecting terminal; 203-First support surface; 204-Second support surface; 205-Bearing area; 206-Allowing groove; 207-Material handling groove; 210-Second electrode; 211-Second pole post; 212-Second connecting terminal; 213-Allowing area; 214-Pressure welding part; 215-First welding section; 216-Second welding section; 220-Third electrode; 221-Third pole post; 222-Third connecting terminal; 10-Laser emitter; 100-Tube seat; 110-First bearing part; 111-First inner wall; 112-First outer wall; 120 - Second support portion; 121 - Second inner wall; 122 - Second outer wall; 130 - Laser assembly; 131 - Semiconductor laser; 132 - Laser substrate; 140 - Pin; 141 - Connecting portion; 142 - Insulating portion; 150 - Cap; 151 - Body; 152 - First connecting portion; 153 - Second connecting portion; 154 - First opening; 155 - First light window; 156 - Second opening; 157 - Second light window; 1581 - First flange portion; 1582 - First welding portion; 1591 - Second flange portion; 1592 - Second welding portion; 160 - Lens; 170 - Monitoring chip; 180 - Positioning portion; 190 - Accommodation space. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0058] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified.

[0059] It should also be noted that, in the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular. For example, the range of included angles between 80° and 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel. For example, the range of completely parallel angles between 10° and 10° is considered parallel.

[0060] Furthermore, in the description of this application, "intersection" means that one face and another face have an angle, or one direction and another direction have an angle. Thus, the two directions of "intersection" are different, and the angle is not 0° or 180°. For example, in the embodiments of this application, the first direction X and the second direction Y intersect, that is, the angle between the first direction X and the second direction Y is greater than 0° and less than 180°.

[0061] The applicant noted that traditional hermetic TO packages are coaxial packages, with the metal cap and header soldered onto the same plane. The large bottom surface of the header is mostly used for pins and flexible board soldering, which cannot achieve good heat dissipation. Heat dissipation can only be achieved through the side of the header, but the side area is small and far from the chip, resulting in poor heat dissipation performance.

[0062] In response to this, such as Figures 16-20As shown, the applicant has developed a laser emitter 10 in which the cap 150 and the socket 100 are welded on different planes, so that the structure has two planes that can be used for the pin 140 to be brought out and the heat dissipation device to be set up respectively, thereby optimizing the heat dissipation performance to a certain extent.

[0063] Specifically, the laser emitter 10 mainly includes a socket 100, a laser assembly 130, and multiple pins 140. The socket 100 includes a first inner wall 111 and a first outer wall 112 opposite to each other in a first direction X, and a second inner wall 121 and a second outer wall 122 opposite to each other in a second direction Y, wherein the first direction X and the second direction Y intersect. The laser assembly 130 is disposed on the first inner wall 111 and is thermally connected to the first inner wall 111; the multiple pins 140 are disposed through the second inner wall 121 and the second outer wall 122, and the pins 140 are electrically connected to the laser assembly 130. The laser emitter 10 also includes a cap 150, which is connected to the base 100 and encloses a receiving space 190, within which the laser assembly 130 is located. The cap 150 includes a body 151, with a first connecting portion 152 and a second connecting portion 153 on its edge. The first connecting portion 152 is sealed to a first inner wall 111, and the second connecting portion 153 is sealed to a second inner wall 121. However, the applicant also notes that this structure cannot be reused for packaging with existing TO automated equipment.

[0064] In view of this, this application provides a sealing device 20, which can reuse existing TO automation equipment to encapsulate the laser emitter 10 that is sealed to the tube cap 150 and the tube seat 100 on different planes, thereby realizing industrial automated production.

[0065] Please see Figure 1 , Figure 1 The diagram illustrates the three-dimensional structure of the sealing device 20 provided in this application embodiment. The sealing device 20 is used to seal the tube seat 100 and tube cap 150 of the laser emitter 10. It mainly includes a first electrode 200 and a second electrode 210. The first electrode 200 and the second electrode 210 are electrode structures that can be applied to existing TO automation equipment (automatic or semi-automatic capping machine). Specifically, the size can be appropriately designed according to the electrode size and style required by the TO automation equipment.

[0066] For example, in some embodiments, the first electrode 200 includes a first terminal post 201 and a first connection terminal 202. The first connection terminal 202 is disposed at one end of the first terminal post 201. Both the first terminal post 201 and the first connection terminal 202 are cylindrical. The first connection terminal 202 is used to connect to a TO automation device to pass current, and the first terminal post 201 is powered through the first connection terminal 202. The second electrode 210 includes a second terminal post 211 and a second connection terminal 212. The second connection terminal 212 is disposed at one end of the second terminal post 211. Both the second terminal post 211 and the second connection terminal 212 are cylindrical. The second connection terminal 212 is used to connect to a TO automation device to pass current, and the second terminal post 211 and the second connection terminal 212 are powered.

[0067] It is understandable that the sealing welding device 20 serves as a resistance welding fixture for the laser emitter 10, and the polarities of the current supplied to the first electrode 200 and the second electrode 210 are different. For example, the first electrode 200 can be supplied with a positive electrode and the second electrode 210 with a negative electrode, or the first electrode 200 can be supplied with a negative electrode and the second electrode 210 with a positive electrode.

[0068] Please refer to the following: Figure 2 , Figure 3 , Figure 4 , Figure 2 It indicated Figure 1 The three-dimensional structure of the first electrode 200 of the middle sealing welding device 20. Figure 3 It indicated Figure 2 The three-dimensional structure of the sealing welding device 20 after the laser emitter 10 is placed. Figure 4 This diagram illustrates the three-dimensional structure of the first electrode 200 as viewed from another angle. Figure 5 It indicated Figure 4 A magnified view of a local area in region A.

[0069] The first electrode 200 includes a first support surface 203 and a second support surface 204 that intersect each other, and a bearing region 205 is formed between the first support surface 203 and the second support surface 204. The bearing region 205 is used to support the tube seat 100. When the tube seat 100 is supported on the bearing region 205, the first support surface 203 and the second support surface 204 can respectively support the two outer walls of the tube seat 100.

[0070] Please refer to the following: Figure 6 and Figure 7 , Figure 6 The diagram illustrates the three-dimensional structure of the second electrode 210 of the sealing device 20 in this embodiment of the application. Figure 7 It indicated Figure 6 A magnified view of the local structure in region B.

[0071] The second electrode 210 is provided with a clearance area 213, and the edge of the clearance area 213 is provided with a pressure welding part 214. The clearance area 213 is used to avoid the tube cap 150, and the pressure welding part 214 is used to press the tube cap 150 against the tube seat 100. That is to say, the clearance area 213 is a groove structure, and the pressure welding part 214 is arranged around the clearance area 213. When sealing is performed, the body 151 of the tube cap 150 can be accommodated in the clearance area 213, and the pressure welding part 214 abuts against the tube cap 150, pressing the tube cap 150 against the tube seat 100.

[0072] Please also refer to section 7. Figure 8 , Figure 9 , Figure 10 and Figure 11 , Figure 8 The diagram illustrates the perspective view of the first electrode 200 of the sealing device 20 after the laser emitter 10 has been placed. Figure 9 The diagram illustrates the exploded structure of the components in the sealing and welding device 20 provided in this embodiment. Figure 10 This indicates viewing from another angle. Figure 9 Explosion structure of parts in the middle sealing welding device 20; Figure 11 The diagram illustrates the main view structure of the sealing and welding device 20 provided in the embodiments of this application.

[0073] The pressure welding part 214 includes a first welding section 215 and a second welding section 216. When the pressure welding part 214 presses the pipe cap 150 against the pipe seat 100, the first welding section 215 and the first support surface 203 are arranged opposite to each other in the first direction X, and the second welding section 216 and the second support surface 204 are arranged opposite to each other in the second direction Y. The first direction X and the second direction Y intersect.

[0074] It is understood that the sealing welding device 20 is provided with a dual-electrode structure. By providing a first support surface 203 and a second support surface 204 on the first electrode 200, and by intersecting the first support surface 203 and the second support surface 204 to form a bearing area 205 for supporting the pipe seat 100, the first support surface 203 can be used to support the first outer wall 112 of the pipe seat 100, and the second support surface 204 can be used to support the second outer wall 122 of the pipe seat 100. Furthermore, by providing a clearance area 213 on the second electrode 210 for avoiding the pipe cap 150, and providing a pressure welding part 214 at the edge of the clearance area 213, the pressure welding part 214 can be used to avoid the pipe cap 150. The cap 150 is pressed against the base 100, and the first joint 152 of the cap 150 is pressed against the first inner wall 111 of the base 100 by the first welding section 215 which is opposite to the first support surface 203. The second joint 153 of the cap 150 is pressed against the second inner wall 121 of the base 100 by the second welding section 216 which is opposite to the second support surface 204. This allows the cap 150 and the base 100 to be welded to different planes, which can be applied to existing TO automation equipment to encapsulate the laser emitter 10 that has the cap 150 and the base 100 welded to different planes, thereby realizing industrial automated production.

[0075] Furthermore, in some embodiments, when the pressure welding portion 214 presses the cap 150 against the base 100, the orthographic projection of the first welding segment 215 on the first support surface 203 is located within the first support surface 203, and the orthographic projection of the second welding segment 216 on the second support surface 204 is located within the second support surface 204. That is, the area of ​​the first welding segment 215 of the pressure welding portion 214 is smaller than the area of ​​the first support surface 203, and the area of ​​the second welding segment 216 is smaller than the area of ​​the second support surface 204. Therefore, the first welding segment 215 and the second welding segment 216 can be completely pressed against the cap 150, allowing current to be fully conducted into the cap 150, sealing the cap 150 and the base 100 together. This prevents the cap from contacting the first electrode 200 due to excessive area, avoiding the risk of short circuits during the sealing process.

[0076] Please refer to it again. Figure 9In some embodiments, the angle between the first direction X and the second direction Y is α, the angle between the first support surface 203 and the second support surface 204 is β, and the angle between the first welding segment 215 and the second welding segment 216 is γ, where α = β = γ. These angles are matched so that when the pressure welding part 214 presses the cap 150 against the pipe seat 100, the first welding segment 215 and the first support surface 203 can be positioned opposite each other in the first direction X, and the second welding segment 216 and the second support surface 204 can be positioned opposite each other in the second direction Y. That is, the first welding segment 215 and the first support surface 203 are perpendicular to the first direction X, and the second welding segment 216 and the second support surface 204 are perpendicular to the second direction Y.

[0077] For further details, please refer to the following documents again. Figure 8 and Figure 9 In some embodiments, the pressure welding portion 214 presses the cap 150 against the seat 100 along a third direction S. The angle between the third direction S and the first direction X and the second direction Y is δ, and δ = α / 2. Therefore, during sealing welding, the pressure applied by the pressure welding portion 214 can be evenly distributed in the first direction X and the second direction Y, so that the pressure on the cap 150 can be evenly distributed on the two inner walls of the seat 100, improving the quality of the seal between the cap 150 and the seat 100.

[0078] Furthermore, in some embodiments, the angle between the first direction X and the second direction Y is α, and 60°≤α≤135°. This is because setting the angle α within this range allows the sealing device 20 to be adapted to the preferred embodiment of the laser emitter 10. Specifically, within this angle range, the two outer walls of the laser emitter 100's socket can respectively house pins 140 and heat dissipation devices without spatial interference. The first outer wall 112 can be used to house the pins 140, and the pins 140 do not affect the space corresponding to the first outer wall 112, thus providing sufficient space for heat dissipation. When the angle α < 60°, the space between the first inner wall 111 and the second inner wall 121 of the socket 100 is narrow, which is not conducive to installing the laser assembly 130. When the angle α > 135°, the pins 140, which penetrate the second inner wall 121 and the second outer wall 122, may affect the installation space of the heat dissipation device on the first outer wall 112. Therefore, 60°≤α≤135° is preferred.

[0079] As a further preferred embodiment, in some embodiments, the first direction X is perpendicular to the second direction Y, that is, α=β=γ=90°, δ=45°, so that during the sealing process, the pressure welding part 214 can apply pressure more stably, so that the sealing process can be carried out safely and stably, improving the quality of sealing, and ensuring the airtightness of the laser emitter 10 after sealing.

[0080] Please refer to the following: Figure 12 and Figure 13 , Figure 12 It indicated Figure 11 Cross-sectional view of the center sealing welding device along line OO. Figure 13 It indicated Figure 12 In some embodiments, the enlarged structure of region C includes a clearance groove 206 on the first support surface 203 and / or the second support surface 204. This clearance groove 206 can be used to avoid the pins 140 of the laser emitter 10, which are disposed on the tube socket 100. When the tube socket 100 is placed within the bearing area 205, the pins 140 protruding from the second outer wall 122 can be accommodated within the clearance groove 206, allowing the tube socket 100 to be stably placed within the bearing area 205 and ensuring the quality of the sealing weld.

[0081] Please refer to it again. Figure 5 In some embodiments, the first electrode 200 is provided with two pick-and-place grooves 207, which are located on both sides of the bearing area 205 and are connected to the bearing area 205. By providing the pick-and-place grooves 207, welding materials such as the tube seat 100 can be easily placed into the bearing area 205, and the laser emitter 10 that has been sealed can be easily removed from the bearing area 205. In particular, for production equipment with manual loading and unloading, the pick-and-place grooves 207 on both sides provide sufficient space for fingers or clamps, so that materials in the bearing area 205 can be easily picked up.

[0082] In some embodiments, the first electrode 200 is provided with a limiting portion (not shown in the figure) for positioning the tube seat 100, and the limiting portion is provided on the first support surface 203 and / or the second support surface 204. By providing the limiting portion on the first support surface 203 and / or the second support surface 204, the tube seat 100 can be positioned in conjunction with the positioning portion 180 of the tube seat 100. Specifically, when the positioning portion 180 of the tube seat 100 is a groove, the limiting portion can be set as a boss structure; when the positioning portion 180 is a boss, the limiting portion can be set as a groove structure, so that the limiting portion can be adapted to the positioning portion 180.

[0083] Please refer to it again. Figures 1 to 11 In some embodiments, the first pole post 201 and the first connecting terminal 202 are both cylindrical, with their central axis KK' extending along a third direction S, which is also the axial direction of the sealing device 20. The second pole post 211 and the second connecting terminal 212 are both cylindrical, with their central axis KK' extending along a third direction S, which is also the axial direction of the sealing device 20.

[0084] By configuring the first electrode 200 and / or the second electrode 210 as described above, it is possible to adapt to some existing models of automatic or semi-automatic capping machines, so that the first electrode 200 and / or the second electrode 210 can be used as electrodes of these models of automatic or semi-automatic capping machines to seal the tube seat 100 and tube cap 150 of the laser emitter 10, thereby realizing industrial automated production.

[0085] In some embodiments, the sealing process includes: placing the tube seat 100 in the bearing area 205, and placing the tube cap 150 on the tube seat 100; pressing the tube cap 150 against the second electrode 210 along a third direction S, so that the first joint portion 152 of the tube cap 150 is in contact with the first inner wall 111 of the tube seat 100, and the second joint portion 153 of the tube cap 150 is in contact with the second inner wall 121 of the tube seat 100. Then, current is passed from the first electrode 200 and the second electrode 210, so that the tips of the first welding portion 1582 of the first joint portion 152 and the second welding portion 1592 of the second joint portion 153 are heated and melted by discharge, thereby achieving a hermetically sealed weld between the tube seat 100 and the tube cap 150.

[0086] It should be noted that in the above embodiments, the first electrode 200 can be an integral metal structure for energizing the tube socket 100, and / or the second electrode 210 can be an integral metal structure for energizing the tube cap 150.

[0087] Please refer to the following: Figure 14 and Figure 15 , Figure 14 The diagram illustrates the exploded structure of components in a sealing and welding apparatus provided in other embodiments of this application. Figure 15 It indicated Figure 14 In some embodiments, the sealing device 20 further includes a third electrode 220; a bearing area 205 is formed at one end of the first electrode 200, and the third electrode 220 can be connected to the other end of the first electrode 200; wherein the third electrode 220 and the second electrode 210 are used to pass electricity of different polarities, and the first electrode 200 is powered through the third electrode 220; that is, in this embodiment, the first electrode 200 and the third electrode 220 together form an electrode structure for energizing the tube seat 100, and the function of the electrode structure is the same as that of the first electrode 200 in the previously described embodiment, and the second electrode 210 has the same function as the second electrode 210 in the previously described embodiment, both of which are used to energize the tube cap 150.

[0088] Alternatively, in some embodiments, the avoidance area 213 is disposed at one end of the second electrode 210, and the third electrode 220 can be connected to the other end of the second electrode 210; wherein, the third electrode 220 and the first electrode 200 are used to connect to electricity of different polarities, and the second electrode 210 is powered through the third electrode 220; that is, in this embodiment, the second electrode 210 and the third electrode 220 together form an electrode structure for energizing the cap 150, and the function of the electrode structure is the same as that of the second electrode 210 in the previously described embodiments, and the first electrode 200 has the same function as the first electrode 210 in the previously described embodiments, both being used to energize the tube socket 100.

[0089] By setting the third electrode 220, it is possible to adapt to situations where the electrodes of the capping machine are significantly offset. During the sealing process, the first electrode 200 and the second electrode 210 are set coaxially, and then the third electrode 220 is powered by contacting the first electrode 200 or the second electrode 210, which can effectively eliminate the lateral positional tolerance between the electrodes.

[0090] Next, the laser emitter 10 that can be used for sealing by the sealing device 20 of this application embodiment will be described so that the structure of the sealing device 20 can be presented more clearly.

[0091] Please refer to the following: Figure 16 and Figure 17 , Figure 16 The diagram illustrates the three-dimensional structure of the laser emitter 10 according to the first embodiment of this application. Figure 17 It indicated Figure 16 The assembly structure of the socket 100 and pins 140 of the laser emitter 10; in the first embodiment, the laser emitter 10 mainly includes a socket 100, a laser component 130 and multiple pins 140.

[0092] The tube seat 100 includes a first inner wall 111 and a first outer wall 112 opposite to each other in a first direction X, and a second inner wall 121 and a second outer wall 122 opposite to each other in a second direction Y, wherein the first direction X intersects the second direction Y.

[0093] The laser component 130 is disposed on the first inner wall 111 and is thermally connected to the first inner wall 111; a plurality of pins 140 are disposed through the second inner wall 121 and the second outer wall 122, and the pins 140 are electrically connected to the laser component 130.

[0094] Understandably, the laser emitter 10 is configured such that the socket 100 has opposing first inner walls 111 and first outer walls 112 in the first direction X, and opposing second inner walls 121 and second outer walls 122 in the second direction Y, with the first direction X and the second direction Y intersecting. That is, there is an angle between the first inner wall 111, the first outer wall 112, and the second inner wall 121 and the second outer wall 122, so that the laser assembly 130 is disposed on the first inner wall 111, and multiple pins 140 are disposed through the second inner wall 121 and the second outer wall 122, so that the first outer wall 112 opposite to the first inner wall 111 is not occupied by the pins 140, thereby providing a larger area for heat dissipation; furthermore, by making the first inner wall 111 and the first outer wall 112 closer together, the heat dissipation device can be placed closer to the laser assembly 130, improving heat dissipation performance.

[0095] It should be noted that the purpose of defining the first direction X and the second direction Y in this application is to clearly describe the arrangement relationship of the first inner wall 111, the first outer wall 112, the second inner wall 121, and the second outer wall 122. Therefore, in the description of this application, the opposite arrangement of the first inner wall 111 and the first outer wall 112 in the first direction X means that the first inner wall 111 and the first outer wall 112 are perpendicular to the first direction X, and the first inner wall 111 and the first outer wall 112 are two mutually opposing surfaces of the first supporting part 110, i.e. Figure 17 The first support portion 110 has two end faces in the first direction X. The second inner wall 121 and the second outer wall 122 are arranged opposite each other in the second direction Y, meaning that the second inner wall 121 and the second outer wall 122 are perpendicular to the second direction Y, and the second inner wall 121 and the second outer wall 122 are two mutually opposing surfaces of the second support portion 120. Figure 17 The second bearing portion 120 has two end faces in the second direction Y. Since the first direction X and the second direction Y intersect, that is, the first direction X and the second direction Y have an angle that is not 0° or 180°, the first inner wall 111 and the second inner wall 121 intersect, and the first outer wall 112 and the second outer wall 122 intersect.

[0096] It should be noted that in some embodiments, the first inner wall 111, the first outer wall 112, the second inner wall 121, and the second outer wall 122 may not be standard planes, but may be curved surfaces, and may have recesses or protrusions. Therefore, in the description of this application, when a wall intersects with another wall or with a direction, is perpendicular to or parallel to it, it means that the reference plane of a wall intersects with another wall or with a direction, is perpendicular to or parallel to it. The reference plane is a virtual plane used to characterize the extension trend of a wall.

[0097] To better understand the structure of the tube socket 100 in this application, please refer again. Figure 17Plane AA' is the reference plane of the first support portion 110, that is, the reference plane of the first inner wall 111 and the first outer wall 112, and the first direction X is perpendicular to plane AA'; plane BB' is the reference plane of the second support portion 120, that is, the reference plane of the second inner wall 121 and the second outer wall 122, and the second direction Y is perpendicular to plane BB'; the first direction X and the second direction Y intersect, that is, plane AA' and plane BB' intersect, and the two have an included angle α. Generally, 0° < α < 180° represents the intersection of the two planes. In this embodiment, as a preferred embodiment, the included angle α is limited to 60° ≤ α ≤ 135°. Within this included angle range, the first support portion 110 and the second support portion 120 of the tube seat 100 can respectively support the laser component 130 and the pin 140 without interfering with each other, and the first outer wall 112 of the first support portion 110 can have sufficient space for heat dissipation. When the included angle α < 60°, the space between the first inner wall 111 and the second inner wall 121 is narrow, which is not conducive to the installation of the laser assembly 130; when the included angle α > 135°, the pin 140 that runs through the second inner wall 121 and the second outer wall 122 may affect the installation space of the heat dissipation device on the first outer wall 112. Therefore, it is preferable that 60° ≤ α ≤ 135°.

[0098] As a further preferred embodiment, the first direction X is perpendicular to the second direction Y. In this case, planes AA' and BB' are perpendicular to each other, α = 90°, the first inner wall 111 and the second inner wall 121 are perpendicularly connected, and the first outer wall 112 and the second outer wall 122 are perpendicularly connected. It can be considered that the first support portion 110 and the second support portion 120 are perpendicular to each other. At this time, the laser assembly 130, the pins 140 and the heat dissipation device each have their own independent and sufficient installation space, and can not interfere with each other. This allows the laser emitter 10 to have a reasonable spatial layout while also having a good heat dissipation effect.

[0099] In some embodiments, the first support portion 110 and the second support portion 120 are both plate-shaped structures. The first support portion 110 extends along the second direction Y, and the second support portion 120 extends along the first direction X. The first support portion 110 and the second support portion 120 are connected, and an included angle α is defined between them. Preferably, 60°≤α≤135°. The reason is the same as above and will not be repeated here.

[0100] In some embodiments, the tube seat 100 is an integrally bent structure, wherein the first support portion 110 extends along the second direction Y, and the second support portion 120 is bent from the end of the first support portion 110 toward the first direction X, forming an integrally bent tube seat 100 that is approximately "L" shaped.

[0101] In some embodiments, the tube base 100 can be manufactured from a high thermal conductivity metal material by machining or stamping. Multiple mounting holes are provided on its second support portion 120, penetrating the second inner wall 121 and the second outer wall 122. The gold-plated surface of the pin 140 and the insulating portion 142 are inserted into the mounting holes through processes such as high-temperature sintering and fixed to the second support portion 120. The insulating portion 142 can be a glass insulator or a multilayer ceramic insulator, and is disposed within the mounting holes and sleeved around the outer periphery of the pin 140.

[0102] For further details, please refer to Figure 18 , Figure 19 and Figure 20 , Figure 18 The diagram illustrates the three-dimensional structure of the laser emitter 10 according to the second embodiment of this application. Figure 19 The illustration shows the three-dimensional structure of the cap 150 according to the second embodiment of this application. Figure 20 It indicated Figure 18 A cross-sectional view of the laser emitter 10 is shown in the second embodiment of this application. The laser emitter 10 further includes a cap 150, which is connected to the tube seat 100 and encloses a receiving space 190. The laser assembly 130 is located within the receiving space 190. The cap 150 includes a body 151, and the edge of the body 151 is provided with a first connecting part 152 and a second connecting part 153. The first connecting part 152 is sealed to the first inner wall 111, and the second connecting part 153 is sealed to the second inner wall 121.

[0103] By setting a cap 150 and encapsulating it with a base 100, an airtight internal containment space 190 is formed, and the laser component 130 is encapsulated in the containment space 190, ensuring the airtightness of the laser emitter 10 and enabling the laser emitter 10 to have excellent performance.

[0104] Specifically, the first joint 152 is attached to the first inner wall 111 of the first support portion 110, and the second joint 153 is attached to the second inner wall 121 of the second support portion 120. It can be understood that the extending directions of the first inner wall 111 and the second inner wall 121 intersect, and therefore the extending directions of the first joint 152 and the second joint 153 also intersect. Specifically, the first joint 152 extends along the second direction Y, and the second joint 153 extends along the first direction X.

[0105] The cap 150 has a body 151 that is mainly made of metal. The body 151, the first joint 152, and the second joint 153 can be an integral structure, which is processed by machining or stamping.

[0106] Furthermore, in the second embodiment, the first joint portion 152 includes a first flange portion 1581 and a first weld portion 1582. The first flange portion 1581 extends along the edge of the body 151. It can be understood that the first flange portion 1581 is structurally an outwardly expanding portion relative to the edge of the body 151, and its width is larger than the edge width of the body 151, resulting in a larger contact area between the first flange portion 1581 and the first inner wall 111, thereby improving the connection performance and airtightness. The first weld portion 1582 is provided on the surface of the first flange portion 1581 facing the first inner wall 111, and the first flange portion 1581 is sealed to the first inner wall 111 through the first weld portion 1582. Before welding, the first welding part 1582 has a metal pointed structure protruding along the first direction X towards the first inner wall 111. During welding, the metal tip discharges to generate local high temperature, causing the first welding part 1582 and the nearby metal to melt together, thus fusing the first inner wall 111 and the first joint 152 together.

[0107] The second joint 153 includes a second flange portion 1591 and a second weld portion 1592. The second flange portion 1591 extends along the edge of the body 151 and is connected end-to-end to the first flange portion 1581. Similar to the first flange portion 1581, the second flange portion 1591 is structurally an outwardly expanding portion relative to the edge of the body 151, with a width greater than the edge width of the body 151. This results in a larger contact area between the second flange portion 1591 and the second inner wall 121, improving connection performance and airtightness. The second weld portion 1592 is located on the surface of the second flange portion 1591 facing the second inner wall 121, and the second flange portion 1591 is sealed to the second inner wall 121 through the second weld portion 1592. Similar to the first welding part 1582, before welding, the second welding part 1592 has a metal pointed structure protruding along the second direction Y towards the second inner wall 121. During welding, the metal tip discharges to generate local high temperature, causing the second welding part 1592 and the nearby metal to melt, thus fusing the second inner wall 121 and the second joint 153 together.

[0108] Please refer to it again. Figure 19Furthermore, the body 151 includes a top wall 1511, a side wall 1512, and two end walls 1513. The top wall 1511 and the first inner wall 111 are located on opposite sides of the receiving space 190 in the first direction X, meaning that the top wall 1511 and the first inner wall 111 are positioned opposite each other in the first direction X, with the receiving space 190 formed between them. The side wall 1512 is connected to the top wall 1511. The side wall 1512 and the second inner wall 121 are located on opposite sides of the receiving space 190 in the second direction Y, with the receiving space 190 formed between them. The two end walls 1513 are located at both ends of the receiving space 190, and the top wall 1511 and the side wall 1512 are connected between the two end walls 1513.

[0109] Furthermore, in the second embodiment, the body 151 is provided with a first opening 154, which is located on the side of the laser assembly 130 away from the second inner wall 121; the cap 150 includes a first light window 155, which is connected to the body 151 and covers the first opening 154. By providing the first light window 155, it can be used to transmit the laser emitted by the laser assembly 130, and it can also be used to observe the interior of the housing space 190 of the laser emitter 10, facilitating high-precision mounting with external components and improving the coupling efficiency with external optical components.

[0110] Furthermore, in the second embodiment, the body 151 is provided with a second opening 156, which is located on the side of the laser assembly 130 away from the first inner wall 111; the cap 150 includes a second light window 157, which is connected to the body 151 and covers the second opening 156. Similar to the effect of setting the first light window 155, by setting the second light window 157, it can be used to transmit the laser emitted by the laser assembly 130, and it can also be used to observe the interior of the receiving space 190 of the laser emitter 10, which facilitates high-precision mounting with external components and improves the coupling efficiency with external optical components.

[0111] In some embodiments, the light transmission directions of the first light window 155 and the second light window 157 are perpendicular to each other. That is, the first light window 155 and the second light window 157 are arranged perpendicular to each other. Specifically, the first light window 155 can be disposed on the side wall 1512 of the body 151, and the second light window 157 can be disposed on the top wall 1511 of the body 151.

[0112] It is understood that in different implementations of the second embodiment, when the laser component 130 emits laser along the first direction X, it can transmit the laser through the second optical window 157, while the first optical window 155 serves as the observation window; when the laser component 130 emits laser along the second direction Y, it can transmit the laser through the first optical window 155, while the second optical window 157 serves as the observation window.

[0113] Specifically, the main body 151 can be made of a metal material with a coefficient of thermal expansion close to that of the glass material of the first light window 155 and the second light window 157. During processing, a first opening 154 and a second opening 156 are reserved on the main body 151. The first light window 155 and the second light window 157 respectively cover the first opening 154 and the second opening 156. The glass material of the light window is bonded and fixed to the metal material of the main body 151 by high-temperature sintering with gold-tin solder or glass solder, and the airtightness of the area is ensured.

[0114] For further details, please refer to the following: Figure 21 , Figure 22 and Figure 23 , Figure 21 The diagram illustrates the three-dimensional structure of the laser emitter 10 according to the third embodiment of this application. Figure 22 The diagram illustrates the front view structure of the laser emitter 10 according to the third embodiment of this application. Figure 23 It indicated Figure 22 The cross-sectional structure of the laser emitter 10 along line AA; in the third embodiment, the laser emitter 10 further includes a lens 160, which is disposed on the side of the first optical window 155 away from the laser component 130, or the lens 160 is disposed between the first optical window 155 and the laser component 130; wherein, the laser component 130 is used to emit laser light to the first optical window 155, and the lens 160 is used to converge the laser light emitted by the laser component 130.

[0115] Understandably, lens 160 is used to shape the vertical and horizontal divergence angles of the laser emitted by laser component 130 for coupling and matching with optical components. Depending on the adaptability of the manufacturing process, lens 160 can be disposed outside or inside the receiving space 190. That is, when the first optical window 155 is used to transmit light emitted by laser component 130, lens 160 can be disposed on the side of the first optical window 155 away from laser component 130 (located outside the receiving space 190), or it can be disposed between the first optical window 155 and laser component 130 (located inside the receiving space 190).

[0116] In the third embodiment, when the laser component 130 emits laser light into the second optical window 157, the lens 160 can be disposed on the side of the second optical window 157 away from the laser component 130, or the lens 160 can be disposed between the second optical window 157 and the laser component 130. The technical effects brought about by the different purposes and disposal methods of the lens 160 are the same as those described above, and will not be repeated here.

[0117] Please see Figure 24 , Figure 24 The diagram illustrates the main view structure of the laser emitter 10 according to the fourth embodiment of this application. In the fourth embodiment, a lens 160 is disposed on the tube base 100. The lens 160 can be a small lens, coupled to the tube base 100, so as to be integrally connected and fixed with the tube base 100, thereby improving the stability of the laser.

[0118] Of course, the lens 160 can also be placed on the cap 150 to couple with the cap 150, which can also improve the stability of the laser.

[0119] Please refer to it again. Figure 16 In some embodiments, the laser emitter 10 further includes a monitoring chip 170 disposed on the second inner wall 121; the monitoring chip 170 is electrically connected to the laser component 130 and pins 140. The backlight of the laser component 130 can be monitored through the monitoring chip 170.

[0120] Specifically, the laser assembly 130 may include a semiconductor laser 131 and a laser substrate 132. The semiconductor laser 131 can be fixed to the laser substrate 132 by gold soldering. The laser substrate 132 is supported on the first inner wall 111 and fixed to the first inner wall 111 by silver paste or gold soldering. The laser substrate 132 is connected to the pins 140 by gold solder pads, gold wires, or solder paste. The monitoring chip 170 is fixed to the second inner wall 121 by silver paste, and the electrical connection between the semiconductor laser 131, the laser substrate 132, the pins 140, and the monitoring chip 170 can be achieved by gold wire bonding.

[0121] In some embodiments, the laser component 130 may be a single laser or other type of light source, or it may be a combination of a laser or other type of light source and components such as a thermoelectric cooler (TEC).

[0122] In some embodiments, the number of pins 140 provided is not limited to... Figure 1 Of the three pins, two or more pins 140 can be set according to the actual needs of the laser component 130.

[0123] Furthermore, in some embodiments, the laser emitter 10 is also provided with a positioning part 180 for adapting to coaxial automated packaging equipment. The positioning part 180 is disposed on the tube base 100 and can be a positioning groove or a positioning boss. Correspondingly, the packaging equipment can be provided with a positioning boss that cooperates with the positioning groove, or a positioning groove that cooperates with the positioning boss, to position the tube base 100 during automated packaging. The number of positioning parts 180 can be one or more, and no particular limitation is made here.

[0124] Accordingly, this application also provides a laser emitting system, which includes the aforementioned laser emitter 10 and a heat dissipation device in contact with the first outer wall 112. It is understood that this laser emitting system can include all the technical features and beneficial effects of the aforementioned laser emitter 10. In particular, by placing the heat dissipation device in contact with the first outer wall 112, a larger area can be used for heat dissipation; by making the first support portion 110 very thin, the distance between the first inner wall 111 and the first outer wall 112 can be brought closer, thereby allowing the heat dissipation device to be closer to the laser assembly 130, improving heat dissipation performance.

[0125] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0126] The sealing and welding device provided in the embodiments of this application has been described in detail above, and specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sealing and welding device (20), characterized in that, The tube socket (100) and tube cap (150) are used for sealing the laser emitter (10); The sealing device (20) includes: The first electrode (200) includes a first support surface (203) and a second support surface (204) that are intersected and formed therebetween. A bearing area (205) is formed between the first support surface (203) and the second support surface (204), and the bearing area (205) is used to support the tube seat (100). The second electrode (210) is provided with a clearance area (213). The edge of the clearance area (213) is provided with a pressure welding part (214) protruding from the clearance area (213). The clearance area (213) is used to avoid the pipe cap (150), and the pressure welding part (214) is used to press the pipe cap (150) against the pipe seat (100). The pressure welding part (214) includes a first welding section (215) and a second welding section (216) that are intersecting and connected. When the pressure welding part (214) presses the pipe cap (150) against the pipe seat (100), the first welding section (215) and the first support surface (203) are arranged opposite each other in the first direction (X), and the second welding section (216) and the second support surface (204) are arranged opposite each other in the second direction (Y). The first direction (X) is perpendicular to the first support surface (203), and the second direction (Y) is perpendicular to the second support surface (204). The first direction (X) and the second direction (Y) intersect.

2. The sealing device (20) according to claim 1, characterized in that, The angle between the first direction (X) and the second direction (Y) is α, the angle between the first support surface (203) and the second support surface (204) is β, and the angle between the first welding segment (215) and the second welding segment (216) is γ, where α = β = γ.

3. The sealing device (20) according to claim 2, characterized in that, The pressure welding part (214) presses the pipe cap (150) against the pipe seat (100) along a third direction (S). The third direction (S) is the axial direction of the sealing welding device (20). The angle between the third direction (S) and the first direction (X) and the second direction (Y) is δ, and δ = α / 2.

4. The sealing device (20) according to any one of claims 1 to 3, characterized in that, The first direction (X) is perpendicular to the second direction (Y).

5. The sealing device (20) according to claim 1, characterized in that, The first support surface (203) and / or the second support surface (204) are provided with a clearance groove (206) for avoiding the pin (140) of the laser emitter (10).

6. The sealing device (20) according to claim 1, characterized in that, The sealing device (20) also includes a third electrode (220); The bearing area (205) is formed at one end of the first electrode (200), and the third electrode (220) can be connected to the other end of the first electrode (200); wherein the third electrode (220) and the second electrode (210) are used to pass electricity of different polarities, and the first electrode (200) is powered through the third electrode (220); or, The avoidance area (213) is disposed at one end of the second electrode (210), and the third electrode (220) can be connected to the other end of the second electrode (210); wherein the third electrode (220) and the first electrode (200) are used to connect to electricity of different polarities, and the second electrode (210) is powered through the third electrode (220).

7. The sealing device (20) according to claim 1, characterized in that, When the pressure welding part (214) presses the pipe cap (150) against the pipe seat (100), the orthographic projection of the first welding segment (215) on the first support surface (203) is located within the first support surface (203), and the orthographic projection of the second welding segment (216) on the second support surface (204) is located within the second support surface (204).

8. The sealing device (20) according to claim 1, characterized in that, The first electrode (200) is provided with two material pick-up and drop-off grooves (207), which are located on both sides of the bearing area (205) and are connected to the bearing area (205).

9. The sealing device (20) according to claim 1, characterized in that, The first electrode (200) is provided with a limiting part for positioning the tube seat (100), and the limiting part is provided on the first support surface (203) and / or the second support surface (204).

10. The sealing device (20) according to claim 1, characterized in that, The first electrode (200) is a one-piece metal structure, and / or the second electrode (210) is a one-piece metal structure.

11. The sealing device (20) according to claim 1, characterized in that, The first electrode (200) includes: First pole (201); The first connection terminal (202) is disposed at one end of the first pole post (201) and is used to supply power to the first pole post (201). The bearing area (205) is formed at the other end of the first pole post (201). And / or, The second electrode (210) includes: Second pole (211); The second connection terminal (212) is disposed at one end of the second pole post (211) and is used to supply power to the second pole post (211). The clearance area (213) is disposed at the other end of the second pole post (211).

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