A wire bonding jig for packaging an optical engine

Abstract

The utility model relates to optical communication technical field especially, and more particularly to a kind of for encapsulating optical engine's wire bonding fixture, suitable for with wire bonder cooperation to optical engine wire bonding, wire bonding fixture includes upper pressing plate, tray, tray holder and heating block;Upper pressing plate is along its length direction and is provided with the processing passage of full length, to make the wire bonder's wedge knife can be inserted into optical engine fixed position and carry out wire bonding.It has beneficial effect, tray body can stably abut optical engine bottom, clamping assembly on tray body can be flexibly designed adjustment, adapt the both sides of different specifications chip optical engine, realize the wire bonding of any chip on optical engine;The processing passage of full length along the length direction of upper pressing plate, reserve the biggest possible operation space, satisfy the wire bonding operating space demand of different chip optical engine.Simultaneously, upper pressing plate and heating block vertical clamping, tray inlay tray holder, guarantee processing stability, and tray holder multiple installation positions can also improve efficiency, effectively solve the problem that traditional fixture adapts single, change type is complicated.

Description

Technical Field

[0001] This utility model relates to the field of optical communication technology, and in particular to a wire bonding clamp for encapsulating optical engines. Background Technology

[0002] Optical communication modules are core components of modern information transmission systems, possessing significant technological advantages and facing robust market demand in the three key areas of cloud computing, 5G communication, and artificial intelligence. Among these, the optical engine, as the core component of the optical module, typically consists of multiple optical devices, enabling bidirectional conversion between electrical and optical signals. Its conversion efficiency, bandwidth, and other key indicators directly determine the transmission rate and operational stability of the optical module. Currently, the increasing demand for high-speed, high-bandwidth, low-power, and cost-effective data transmission is driving continuous improvement in the integration of chips within optical engine packaging. Against this backdrop, the packaging of each optical engine relies on COB (Chip-on-Board) technology, a packaging method that directly packages bare chips onto a printed circuit board. Wire bonding is the most crucial step in COB technology, referring to the use of a wire bonder to connect the chip to pads on the printed circuit board, commonly known as wire bonding. The stability and reliability of wire bonding directly affect the overall performance and manufacturing yield of the optical module.

[0003] In existing technologies, when developing optical modules in a laboratory, sample fabrication is required. The connection between the chip and the pads on the printed circuit board (PCB) using a wire bonding machine necessitates the use of wire bonding clamps to hold and fix the PCB. However, the wire bonding clamps used to manufacture optical engines employ a "one-to-one" PCB-compatible design, meaning each clamp is developed specifically for a particular chip. As the types of optical engines related to optical communication modules become increasingly diverse, the number of wire bonding clamps required to be designed has increased significantly. On the one hand, a large amount of human design resources are consumed, resulting in a large accumulation of wire bonding clamps. On the other hand, when soldering different chips during the development process, the corresponding dedicated clamps must be changed simultaneously, wasting valuable processing time and directly reducing overall production efficiency.

[0004] Therefore, there is an urgent need for a wire bonding fixture for packaging optical engines that can accommodate the installation of various chips during the manufacturing of optical engines. Utility Model Content

[0005] (a) Technical problems to be solved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a wire bonding fixture for packaging optical engines, which solves the technical problem that the existing wire bonding fixtures cannot be compatible with the installation of multiple chips when manufacturing optical engines.

[0006] (II) Technical Solution To achieve the above objectives, the main technical solutions adopted by this utility model include: This utility model provides a wire bonding fixture for encapsulating an optical engine, suitable for use with a wire bonding machine to bond wires to the optical engine. The wire bonding fixture includes an upper pressure plate, a tray, a tray frame, and a heating block. The upper pressure plate and the heating block are disposed opposite each other above and below the tray. The tray frame has several tray mounting positions, and one tray is fitted into one tray mounting position. Both the upper pressure plate and the heating block are suitable for mounting on the wire bonding machine and can move in the vertical direction. The two cooperate to clamp and fix the tray on the tray mounting position. The tray includes a tray body and a clamping assembly. The tray body has an optical engine fixing position. The clamping assembly is fixed to the tray body and is suitable for clamping the optical engine to fix it in the optical engine fixing position. The upper pressure plate has a continuous processing channel along its length, which corresponds to the optical engine fixing position, so that the wire bonding machine can extend from the upper pressure plate into the optical engine fixing position to perform wire bonding.

[0007] Optionally, the clamping assembly includes a positioning block, a pressure plate, a push plate, and several springs; the positioning block and the pressure plate are respectively fixed on both sides of the optical engine fixing position, the positioning block is adapted to abut against the optical engine, the push plate is movably connected inside the pressure plate, and the first end of the push plate can extend out of the pressure plate to abut against the optical engine, the several springs are arranged in a row, and the two ends of the springs abut against the tray body and the second end of the push plate respectively, so as to push the push plate towards the optical engine fixing position, and the positioning block and the push plate cooperate to clamp the optical engine together.

[0008] Optionally, the top of the push plate is provided with a toggle part, which protrudes from the lower surface of the pressure plate. When the spring pushes the push plate to move towards the fixed position of the light engine, the toggle part can abut against the pressure plate. When the spring is compressed by the push plate away from the fixed position of the light engine, the toggle part disengages from the pressure plate.

[0009] Optionally, the push plate is adapted to have a wedge-shaped portion at the point of contact with the light engine. The wedge-shaped portion protrudes from the lower surface of the pressure plate and extends downward at an angle away from the fixed position of the light engine. The wedge-shaped portion can be selected to contact the pressure plate to limit the range of motion of the push plate, and the push plate moves between the wedge-shaped portion and the actuating portion.

[0010] Optionally, the positioning block is wedge-shaped, and the side of the positioning block near the light engine fixing position extends downward in a direction away from the light engine fixing position.

[0011] Optionally, the tray also includes a preheating boss, which is fixed to the tray body and adapted to fit against the bottom surface of the light engine. The shape of the preheating boss is adapted to the shape of the part to be processed by the light engine. The preheating boss cooperates with the heating block to locally heat the part to be processed by the light engine.

[0012] Optionally, the tray body has several through holes distributed on both sides of the preheating boss, and the preheating boss and the heating block abut against the tray body together, so as to locally heat the part to be processed by the light engine.

[0013] Optionally, the tray body is provided with several protrusions and a support platform. The protrusions are located in the middle of the light engine fixing position and are adapted to fit against the bottom surface of the light engine. The support platform is located at one end of the light engine fixing position, and the upper surface of the support platform and the upper surface of the protrusions are on the same plane.

[0014] Optionally, a number of first magnets are fixedly provided on the periphery of the bottom of the pallet body, and a number of second magnets are fixedly provided on the periphery of the top of the pallet frame. The first magnets and the second magnets are arranged correspondingly, and the magnetic poles of the opposite sides of the first magnets and the second magnets are opposite, so as to realize the detachable connection between the pallet and the pallet frame.

[0015] Optionally, the tray frame is adapted to be connected to the drive mechanism of the wire bonding machine and moves along a preset path as driven by the drive mechanism of the wire bonding machine, so that each tray carrying the optical engine to be processed is set in correspondence with the upper pressure plate and the heating block.

[0016] (III) Beneficial Effects The beneficial effects of this utility model are as follows: This utility model provides a wire bonding clamp for encapsulating optical engines, suitable for use with a wire bonding machine to bond wires to the optical engines. The wire bonding clamp includes an upper pressure plate, a tray, a tray frame, and a heating block. The upper pressure plate and the heating block are arranged opposite each other above and below the tray. The tray frame has several tray mounting positions, and one tray is fitted into one tray mounting position. Both the upper pressure plate and the heating block are suitable for mounting on the wire bonding machine and can move in the vertical direction. The two cooperate to clamp and fix the tray on the tray mounting position. The tray includes a tray body and a clamping assembly. The tray body has an optical engine fixing position. The clamping assembly is fixed to the tray body and is suitable for clamping the optical engine to fix it in the optical engine fixing position. The upper pressure plate has a continuous processing channel along its length direction. The processing channel corresponds to the optical engine fixing position so that the wire bonding machine's cutting blade can extend from the upper pressure plate into the optical engine fixing position to perform wire bonding. Compared to existing technologies, the tray body can stably abut against the bottom surface of the optical engine. The clamping components on the tray body can be flexibly designed and adjusted to adapt to both sides of the optical engine with different chip specifications, enabling wire bonding of any chip on the optical engine. The continuous processing channel along the length of the upper pressure plate provides as much working space as possible, precisely corresponding to the fixing position of the optical engine, meeting the wire bonding operation space requirements of different chip optical engines. At the same time, the vertical clamping of the upper pressure plate and heating block, and the tray fitting into the tray frame, ensure processing stability. The multiple mounting positions of the tray frame can also improve efficiency, effectively solving the problems of single adaptability and cumbersome changeover of traditional fixtures. Attached Figure Description

[0017] Figure 1 This is an exploded view of Embodiment 1 of the wire bonding clamp for encapsulating an optical engine according to the present invention; Figure 2 for Figure 1A top view of the tray in the wire bonding fixture used for encapsulating an optical engine is shown. Figure 3 for Figure 2 The diagram shows a cross-sectional view of the tray in the wire bonding fixture for encapsulating an optical engine, cut along section AA. Figure 4 for Figure 1 A bottom view of the wire bonding fixture used to encapsulate the optical engine; Figure 5 for Figure 1 The diagram shows a wire bonding fixture for encapsulating an optical engine. Figure 6 This is a schematic diagram of the tray structure in Embodiment 2 of the wire bonding clamp for encapsulating an optical engine according to this utility model.

[0018] Explanation of reference numerals in the attached figures 1: Light engine; 2: Upper pressure plate; 21: Processing channel; 3: Tray; 31: Tray body; 311: Protrusion; 312: Support platform; 313: First magnet; 32: Clamping assembly; 321: Positioning block; 322: Pressure plate; 323: Push plate; 3231: Actuating part; 3232: Wedge-shaped part; 324: Spring; 33: Preheating boss; 4: Tray frame; 41: Second magnet; 5: Heating block; 6: Elastic clamping piece. Detailed Implementation

[0019] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0021] Example 1:

[0022] Reference Figures 1 to 5 This embodiment proposes a wire bonding fixture for encapsulating an optical engine. When processing the optical engine 1, it clamps and fixes the optical engine 1, and then bonds wires to the optical engine 1 in conjunction with a wire bonding machine. Specifically, the wire bonding fixture for encapsulating the optical engine in this embodiment includes an upper pressure plate 2, a tray 3, a tray frame 4, and a heating block 5, as detailed below.

[0023] In this embodiment, the upper pressure plate 2 is positioned above the tray 3, and the heating block 5 is positioned at the bottom of the tray 3. Both are adapted to be installed at the corresponding workstation of the wire bonding machine and can move flexibly in the vertical direction. During operation, the upper pressure plate 2 moves downward and the heating block 5 moves upward simultaneously, which can tightly clamp and fix the tray 3 from both sides, preventing the tray 3 from shifting during the wire bonding process and affecting accuracy. The tray frame 4 has several tray 3 mounting positions opened along a preset direction. Each mounting position is adapted to the shape of the tray 3, and a single tray 3 can be accurately fitted into a mounting position, which not only ensures the positioning stability of the tray 3, but also provides support for the continuous processing of multiple sets of optical engines 1.

[0024] Furthermore, the tray 3, as a key component adaptable to various chips, consists of a tray body 31 and a clamping assembly 32. The tray body 31 has a light engine fixing position that matches the shape of the light engine 1, allowing it to fully contact the bottom surface of the light engine 1 for initial positioning. The clamping assembly 32 is fixed to the tray body 31 and can flexibly adjust its clamping range according to the size of the light engine 1, clamping it from both sides and firmly confining it within the light engine fixing position. This allows for subsequent processing of the light engine 1 without replacing the entire wire bonding fixture, enabling it to adapt to the light engine 1 corresponding to different chips. The upper pressure plate 2 has a rectangular, continuous processing channel 21 in its middle area along its length. The processing channel 21 precisely corresponds vertically to the light engine fixing position on the tray 3, ensuring that the wire bonding machine's cutting blade can extend unobstructed into the light engine fixing position, accurately aligning the chip with the pads of the printed circuit board, and successfully completing the wire bonding.

[0025] In summary, compared to existing technologies, the tray body 31 can stably abut against the bottom surface of the optical engine 1, and the clamping components 32 on the tray body 31 can be flexibly adjusted to adapt to both sides of the optical engine 1 with different specifications of chips, enabling wire bonding of any chip on the optical engine 1. The continuous processing channel 21 along the length of the upper pressure plate 2 precisely corresponds to the fixing position of the optical engine, meeting the wire bonding operation space requirements of the optical engine 1 with different chips. At the same time, the upper pressure plate 2 and the heating block 5 vertically clamp, and the tray 3 is fitted into the tray frame 4, ensuring processing stability. The multiple mounting positions of the tray frame 4 can also improve efficiency, effectively solving the problems of single adaptability and cumbersome changeover of traditional fixtures.

[0026] Furthermore, the clamping assembly 32 includes a positioning block 321, a pressure plate 322, a push plate 323, and several springs 324. The positioning block 321 and the pressure plate 322 are respectively fixed on opposite sides of the light engine fixing position. One side of the positioning block 321 is in contact with the outer surface of the light engine fixing position and is adapted to abut against the outer wall of one side of the light engine 1 to be fixed, forming a clamping fixing reference end. The pressure plate 322 has an internal movable cavity adapted to the push plate 323. The push plate 323 is movably connected in the movable cavity in the direction of "towards / away from the light engine fixing position", and the first end of the push plate 323 can extend out of the side of the pressure plate 322 facing the light engine fixing position and is adapted to abut against the outer wall of the other side of the light engine 1. Several springs 324 are arranged in a row along the length of the push plate 323 within the movable cavity of the pressure plate 322. One end of each spring 324 abuts against the inner wall of the movable cavity, i.e., the side wall of the tray body 31, and the other end abuts against the second end of the push plate 323 (the end away from the optical engine fixing position), so as to continuously apply an elastic pushing force to the push plate 323 toward the optical engine fixing position. With this structure, the positioning block 321 serves as a fixing reference, and the push plate 323 is always pressed against the optical engine 1 under the pushing force of the springs 324. The two work together to firmly clamp the optical engine 1 in the optical engine fixing position, and can adapt to optical engines 1 of different widths through the elastic deformation of the springs 324, meeting the fixing requirements of optical engines 1 for various chips.

[0027] Furthermore, the push plate 323 has a toggle part 3231 at its top, which protrudes from the upper surface of the pressure plate 322. When the spring 324 pushes the push plate 323 toward the light engine fixing position, the toggle part 3231 abuts against the pressure plate 322. When the push plate 323 moves away from the light engine fixing position, causing the spring 324 to compress, the toggle part 3231 disengages from the pressure plate 322. In this structure, the toggle part 3231 serves both as the operating fulcrum of the push plate 323 (facilitating manual driving of the push plate 323 away from the light engine fixing position to place or remove the light engine 1) and, through its abutment relationship with the pressure plate 322, limits the maximum travel of the push plate 323 toward the light engine fixing position, preventing excessive pushing by the spring 324 that could cause the push plate 323 to exert excessive pressure on the light engine 1, while ensuring that the push plate 323 can stably clamp the light engine 1 in its natural state.

[0028] Furthermore, a wedge-shaped portion 3232 is provided at the contact point between the push plate 323 and the light engine 1. This wedge-shaped portion 3232 protrudes from the lower surface of the pressure plate 322 and also protrudes from the upper surface of the PCB board of the light engine 1, extending downwards at an angle away from the light engine fixing position. The wedge-shaped portion 3232 can selectively contact the pressure plate 322 to limit the range of motion of the push plate 323 towards the light engine fixing position. The range of motion of the push plate 323 is limited between the wedge-shaped portion 3232 and the actuating portion 3231. That is, when the push plate 323 moves towards the light engine fixing position, the wedge-shaped portion 3232 contacts the pressure plate 322 to form the end point of the stroke. When moving away from the light engine fixing position, the actuating portion 3231 serves as the operating fulcrum. Through the cooperation of the two, the push plate 323 is ensured to move within a preset range, which avoids excessive clamping and damage to the light engine 1, and also ensures stable clamping of light engines 1 of different specifications.

[0029] Furthermore, the positioning block 321 has a wedge-shaped structure, with its side facing the light engine fixing position extending downwards in a direction away from the light engine fixing position. This inclined side design serves to guide the light engine 1 when it is placed into the light engine fixing position, facilitating quick alignment of the light engine 1. It also enhances the lateral limiting effect of the positioning block 321 on the light engine 1 by forming a close contact with the side wall of the light engine 1 through the inclined surface. Together with the push plate 323, it further improves the stability of the light engine 1 clamping, while adapting to the side wall contact requirements of light engines 1 with different height specifications.

[0030] Furthermore, the tray 3 also includes a preheating boss 33. The preheating boss 33 is fixed to a preset position on the tray body 31 by welding, snap-fitting, or magnetic attraction, and is suitable for precisely fitting the area on the bottom surface of the optical engine 1 corresponding to the part to be processed. The shape of the preheating boss 33 is adapted to the shape of the part to be processed on the optical engine 1 to ensure that a tight heat conduction contact is formed when the two are in contact. During operation, the preheating boss 33 cooperates with the heating block 5 below to directionally conduct the heat generated by the heating block 5 to the part to be processed on the optical engine 1, realizing local heating of the area. This avoids damage to the non-processed areas of the optical engine 1 due to overall heating, and improves the temperature accuracy and heating efficiency of the processed part, providing a suitable temperature environment for subsequent wire bonding, and ensuring the stability and bonding quality of the wire bonding.

[0031] Furthermore, the tray body 31 has several through holes distributed on both sides of the preheating boss 33. The preheating boss 33 and the heating block 5 abut against the corresponding area of ​​the tray body 31, forming a local heating structure for the processing part of the optical engine 1. The through holes on both sides can reduce the diffusion of heat generated by the heating block 5 to areas of the tray body 31 other than the preheating boss 33, making the heat more concentrated on the preheating boss 33. The preheating boss 33 then conducts the heat from the heating block 5 to the processing part of the optical engine 1 that it is in contact with, thereby achieving precise local heating of the part of the optical engine 1 to be processed. This avoids damage to the non-processed areas of the optical engine 1 due to overheating, and improves the temperature stability and heating efficiency of the processing part, providing a suitable local temperature environment for subsequent wire bonding operations, and further ensuring the quality of wire bonding.

[0032] Furthermore, the tray body 31 is provided with several protrusions 311 and a support platform 312. The protrusions 311 are located in the middle area of ​​the optical engine fixing position and are adapted to fit against the bottom surface of the optical engine 1. The support platform 312 is located at one end of the optical engine fixing position and is coplanar with the upper surface of the protrusions 311. This coplanar design ensures that when the optical engine 1 is placed in the optical engine fixing position, its bottom surface can simultaneously and stably fit against the upper surfaces of the protrusions 311 and the support platform 312, forming a multi-point support structure. This prevents the optical engine 1 from tilting or deforming due to uneven force on its bottom surface, further improving the positioning stability of the optical engine 1 and providing a precise reference surface for subsequent local heating and wire bonding operations. When a heat sink is provided at the bottom of the processing area of ​​the light engine 1, the upper surface of the preheating boss 33 is lower than the upper surface of the support platform 312 and the protrusion 311. When a heat sink is not provided at the bottom of the processing area of ​​the light engine 1, the upper surface of the preheating boss 33, the upper surface of the support platform 312 and the upper surface of the protrusion 311 are coplanar.

[0033] Furthermore, several first magnets 313 are fixedly mounted on the periphery of the bottom of the tray body 31, and several second magnets 41 are fixedly mounted on the periphery of the top of the tray frame 4 corresponding to the mounting positions of the first magnets 313, so that the first magnets 313 and the second magnets 41 are arranged in a one-to-one correspondence. Moreover, the magnetic poles of the first magnets 313 and the second magnets 41 are opposite to each other. By utilizing the magnetic force of opposite poles attracting each other, the tray 3 and the tray frame 4 can be detachably connected. This structure can not only ensure the positioning accuracy and connection stability of the tray 3 when it is fitted into the tray frame 4, and prevent the tray 3 from shifting during the wire bonding process, but also facilitate the loading and unloading of the tray 3 to replace different optical engines 1 to be processed, effectively improving the operating efficiency.

[0034] Furthermore, the tray frame 4 is adapted to form a transmission connection with the drive mechanism of the wire bonding machine. Under the power drive of the wire bonding machine drive mechanism, the tray frame 4 can move stably along a preset path (such as a straight path). Through this movement, the trays 3 carrying the optical engines 1 to be processed on the tray frame 4 can be sequentially set up vertically with the upper pressure plate 2 and the heating block 5, ensuring that each tray 3 can be accurately clamped and fixed by the upper pressure plate 2 and the heating block 5 when it moves to the processing station. This provides precise station docking for the subsequent local heating and wire bonding operations of the optical engine 1, and adapts to the need for continuous processing of multiple trays 3.

[0035] Example 2:

[0036] Reference Figure 6 The difference between this embodiment and embodiment 1 is that this embodiment also includes an elastic clip 6, which is described in detail below.

[0037] In this embodiment, the wire bonding fixture for encapsulating the optical engine also includes an elastic clamp 6, which is adapted to be disposed above the optical engine fixing position and fixedly assembled on the tray body 31. The elastic clamp 6 consists of a tail end and an elastic sheet, which are fixedly connected by integral molding, welding, or snap-fit. The tail end has a waist-shaped hole, and a bolt passes through the waist-shaped hole to be threadedly connected to the tray body 31. The fixed position of the elastic clamp 6 on the tray body 31 can be adjusted by the longitudinal direction of the waist-shaped hole. The elastic sheet is made of an elastic metal sheet, and its middle part has a downwardly concave arc structure. This concave part is suitable for abutting against the top surface of the optical engine 1. The elastic deformation of the elastic sheet itself generates a downward clamping force. Combined with the lateral limiting of the support and clamping components 32 of the tray body 31, the optical engine 1 is further firmly fixed in the optical engine fixing position, preventing the optical engine 1 from vertically displacing during wire bonding.

[0038] In the description of this utility model, it should be understood that 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wire bonding fixture for encapsulating an optical engine, suitable for use with a wire bonding machine to bond wires to an optical engine (1), characterized in that: The wire-punching fixture includes an upper pressure plate (2), a tray (3), a tray frame (4), and a heating block (5); The upper pressure plate (2) and the heating block (5) are positioned opposite each other above and below the tray (3). Several tray mounting positions are provided on the tray frame (4). One tray (3) is fitted into one tray mounting position. The upper pressure plate (2) and the heating block (5) are both suitable for installation on the wire bonding machine and can move in the vertical direction. The two work together to clamp and fix the tray (3) on the tray mounting position. The tray (3) includes a tray body (31) and a clamping assembly (32). The tray body (31) has a light engine fixing position. The clamping assembly (32) is fixed on the tray body (31). The clamping assembly (32) is adapted to clamp the light engine (1) to fix it in the light engine fixing position. The upper pressure plate (2) has a continuous processing channel (21) along its length direction. The processing channel (21) corresponds to the optical engine fixing position, which is suitable for the wire bonding machine's cutting blade to extend from the upper pressure plate (2) into the optical engine fixing position to perform wire bonding.

2. The wire bonding clamp for encapsulating an optical engine as described in claim 1, characterized in that: The clamping assembly (32) includes a positioning block (321), a pressure plate (322), a push plate (323), and several springs (324). The positioning block (321) and the pressure plate (322) are respectively fixed on both sides of the light engine fixing position. The positioning block (321) is adapted to abut against the light engine (1). The push plate (323) moves inside the pressure plate (322), and the first end of the push plate (323) can extend out of the pressure plate (322) and is adapted to abut against the light engine (1). Several springs (324) are arranged in a row, and the two ends of the springs (324) abut against the tray body (31) and the second end of the push plate (323) respectively, so as to push the push plate (323) towards the light engine fixing position. The positioning block (321) and the push plate (323) cooperate to clamp the light engine (1) together.

3. The wire bonding fixture for encapsulating an optical engine as described in claim 2, characterized in that: The push plate (323) has a toggle part (3231) at the top. The toggle part (3231) protrudes from the upper surface of the pressure plate (322). When the spring (324) pushes the push plate (323) to move towards the fixed position of the light engine, the toggle part (3231) can abut against the pressure plate (322). When the spring (324) is compressed by the push plate (323) away from the fixed position of the light engine, the toggle part (3231) disengages from the pressure plate (322).

4. The wire bonding fixture for encapsulating an optical engine as described in claim 3, characterized in that: The push plate (323) is adapted to have a wedge-shaped part (3232) at the point of contact with the light engine (1). The wedge-shaped part (3232) protrudes from the lower surface of the pressure plate and extends downward in an inclined direction away from the fixed position of the light engine. The wedge-shaped part (3232) can be selected to contact the pressure plate (322) to limit the range of motion of the push plate (323). The push plate (323) moves between the wedge-shaped part (3232) and the actuating part (3231).

5. The wire bonding fixture for encapsulating an optical engine as described in claim 4, characterized in that: The positioning block (321) is wedge-shaped, and the side of the positioning block (321) near the light engine fixing position extends downward in a direction away from the light engine fixing position.

6. The wire bonding fixture for encapsulating an optical engine as described in claim 1, characterized in that: The tray (3) also includes a preheating boss (33), which is fixed on the tray body (31) and is suitable for fitting with the bottom surface of the light engine (1). The shape of the preheating boss (33) is adapted to the shape of the part to be processed by the light engine (1). The preheating boss (33) cooperates with the heating block (5) to be suitable for local heating of the part to be processed by the light engine (1).

7. The wire bonding fixture for encapsulating an optical engine as described in claim 6, characterized in that: The tray body (31) has several through holes distributed on both sides of the preheating boss (33), and the preheating boss (33) and the heating block (5) abut against the tray body (31) together to facilitate local heating of the part to be processed by the light engine (1).

8. The wire bonding clamp for encapsulating an optical engine as described in claim 6, characterized in that: The tray body (31) is provided with several protrusions (311) and a support platform (312). The protrusions (311) are located in the middle of the light engine fixing position and are suitable for fitting with the bottom surface of the light engine (1). The support platform (312) is located at one end of the light engine fixing position, and the upper surface of the support platform (312) and the upper surface of the protrusions (311) are on the same plane.

9. The wire bonding clamp for encapsulating an optical engine as described in claim 1, characterized in that: Several first magnets (313) are fixedly provided on the periphery of the bottom of the tray body (31), and several second magnets (41) are fixedly provided on the periphery of the top of the tray frame (4). The first magnets (313) and the second magnets (41) are arranged correspondingly, and the magnetic poles of the opposite sides of the first magnets (313) and the second magnets (41) are opposite, so as to realize the detachable connection between the tray (3) and the tray frame (4).

10. The wire bonding fixture for encapsulating an optical engine as described in claim 1, characterized in that: The tray frame (4) is adapted to be connected to the drive mechanism of the wire bonding machine and moves along a preset path as driven by the drive mechanism of the wire bonding machine, so that each tray (3) carrying the required processing light engine (1) is set in correspondence with the upper pressure plate (2) and the heating block (5).

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