A heat dissipation structure and an optical module end face detection device

Abstract

This disclosure discloses a heat dissipation structure and an optical module end-face detection device, relating to the field of heat dissipation. It includes a control board housed within a housing, a heat dissipation plate positioned corresponding to the control board within the housing, a fan mounted on the heat dissipation plate, an air inlet opening positioned corresponding to the fan within the housing, a sealing plate positioned corresponding to the air inlet opening within the housing, a sealing element positioned corresponding to the sealing plate within the housing, and a heat dissipation area formed by the sealing plate and the sealing element within the housing, with the fan located within the heat dissipation area; a heat dissipation section is formed on the heat dissipation plate away from the fan, with several protrusions formed on the heat dissipation section, and an air outlet channel forming between adjacent protrusions. The air outlet channel away from the central axis of the heat dissipation plate bends towards the heat dissipation area, and an air outlet opening is provided on the heat dissipation area corresponding to the air outlet direction of the air outlet channel, with the air inlet located within the heat dissipation area. This disclosure solves the problem of unclear heat dissipation paths leading to unstable heat dissipation effects through the above structure.

Description

Technical Field

[0001] This disclosure relates to the field of heat dissipation technology for electronic devices, and in particular to a heat dissipation structure and an optical module end face detection device. Background Technology

[0002] Optical module end-face inspection devices are typically used to perform imaging inspections on the end faces of fiber optic connectors and optical modules to determine whether there is contamination, scratches, defects, or other issues affecting the quality of optical signal transmission. These devices generally include a detection unit, a display unit, a control board, and a power supply unit. The detection unit acquires end-face images, the control board performs signal processing and function control, the display unit displays the inspection results, and the power supply unit powers the internal electrical components. Because optical module end-face inspection devices are usually integrated into a small housing space, the functional units are arranged compactly, and components such as the control board, display module, and battery generate heat during operation.

[0003] Existing heat dissipation methods often employ ventilation holes in the casing or internal fans. However, these structures typically lack a relatively independent heat dissipation zone and a clear airflow path, resulting in an unclear heat dissipation path. When airflow enters the casing, it tends to diffuse haphazardly internally, failing to concentrate on key heat-generating areas such as the control board, leading to low airflow utilization and unstable heat dissipation. Furthermore, ordinary heat sinks have limited contact area with the air, and airflow distribution is uneven across different areas, especially at the edges where airflow is difficult to expel smoothly, easily causing localized heat retention. In addition, if power supply components such as batteries lack adequate isolation from heat-generating components, they may also be affected by hot air, thus impacting the operating environment of internal components.

[0004] Therefore, a heat dissipation structure and an optical module end-face detection device are proposed to solve the problem of unclear heat dissipation path leading to unstable heat dissipation effect. Summary of the Invention

[0005] The purpose of this disclosure is to provide a heat dissipation structure and an optical module end face detection device to solve the problem of unclear heat dissipation path leading to unstable heat dissipation effect.

[0006] To achieve this objective, the present disclosure adopts the following technical solution: A heat dissipation structure includes a control board disposed within a housing, a heat sink disposed within the housing corresponding to the position of the control board, a fan disposed on the heat sink, and an air inlet vent disposed within the housing corresponding to the position of the fan. A sealing plate is provided inside the housing at the position corresponding to the fan, and the sealing plate is positioned to correspond to the air inlet. A sealing component is provided inside the housing at the position corresponding to the sealing plate. The sealing plate and the sealing component form a heat dissipation area inside the housing, and the fan is located within the heat dissipation area. A heat dissipation section is formed on the part of the heat dissipation plate away from the fan. Several protrusions are formed on the heat dissipation section. An air outlet channel is formed between two adjacent protrusions. The air outlet channel away from the central axis of the heat dissipation plate bends toward the heat dissipation area. An air outlet hole is opened on the heat dissipation area corresponding to the air outlet direction of the air outlet channel. The air inlet hole is located in the heat dissipation area. After the fan starts working, the outside air passes through the air inlet, the heat dissipation area, the air outlet channel and the air outlet in sequence, and is discharged from the heat dissipation area through the air outlet.

[0007] Preferably, a U-shaped connecting portion is formed on the heat sink corresponding to the position of the fan, the fan is mounted on the connecting portion, and the notch of the connecting portion faces the direction of the air outlet channel.

[0008] Preferably, the cross-sectional area of ​​the several air outlet channels increases in a direction away from the central axis of the heat sink, and the width of the inner cavity of the bent air outlet channels increases sequentially in the air outlet direction.

[0009] Preferably, the sealing plate is a U-shaped plate, and the opening of the sealing plate corresponds to the air inlet.

[0010] Preferably, the protrusion has several grooves on the side near the air outlet channel, and the grooves are distributed along the air outlet direction, with the depth and width of the grooves increasing sequentially along the air outlet direction.

[0011] Preferably, the groove is inclined on the protrusion and tilted towards the air outlet direction, with an inclination angle of 5-10°.

[0012] Preferably, the grooves are spaced apart, and the spacing between them increases sequentially along the air outlet direction.

[0013] Preferably, the sealing member is formed in the heat dissipation area corresponding to the air inlet hole. The sealing member includes a first part and a second part connected to each other. The air inlet hole is located in the first part. The sealing plate overlaps with the first part and the second part respectively. The width of the second part is adapted to the width of the sealing plate.

[0014] Preferably, the sealing component further includes a third part, which is connected to the first part. The third part is disposed in the heat dissipation area corresponding to the air outlet, and the width of the third part is smaller than the width of the second part.

[0015] An optical module end face detection device is provided. The detection device includes the heat dissipation structure as described above. The detection device also includes a detection unit, a display unit and a power supply unit disposed in the housing. The control board is disposed in the display unit.

[0016] Compared with the prior art, this disclosure has the following beneficial effects: This disclosure provides a heat dissipation structure and an optical module end-face detection device. A heat dissipation zone is formed within the housing by setting a sealing plate and sealing components, and a fan is located within this zone. External air enters the heat dissipation zone through the air inlet and exits through the air outlet channel and outlet, thus forming a relatively continuous heat dissipation path within the housing and reducing disordered airflow diffusion after entering the housing. Simultaneously, a heat sink is positioned at the corresponding control board location, and several protrusions are formed on the heat dissipation section. Air outlet channels are formed between adjacent protrusions, allowing airflow to pass through the heat dissipation section and contact the protrusions as it passes through the outlet channels, thereby carrying away some heat from the heat sink. Furthermore, the air outlet channel away from the central axis of the heat sink bends towards the heat dissipation zone, allowing airflow in the edge area of ​​the heat sink to exit towards the corresponding outlet, reducing heat retention caused by obstructed airflow at the edges. Therefore, this structure forms a clear air inlet, heat exchange, and outlet path within the housing, improving the effectiveness of airflow through the heat sink and mitigating the problem of unstable heat dissipation caused by unclear heat dissipation paths. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this disclosure can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this disclosure can produce, should still fall within the scope of the technical content disclosed herein.

[0019] Figure 1 This is a schematic diagram of the overall structure of the heat dissipation structure in an embodiment of this disclosure; Figure 2 This is a top view of the heat sink structure in an embodiment of this disclosure; Figure 3 This is a bottom view of the heat sink structure in an embodiment of this disclosure; Figure 4 This is a schematic diagram of the disassembled structure of the heat sink and the cover plate in an embodiment of this disclosure; Figure 5 This is a cross-sectional view of the protrusion in an embodiment of the present disclosure; Figure 6 This is a front view of the housing structure in an embodiment of this disclosure; Figure 7 This is a schematic diagram of the internal structure of the housing in an embodiment of this disclosure; Figure 8 This is a schematic diagram of the connection structure between the shell and the sealing plate in an embodiment of this disclosure; Figure 9 This is a schematic diagram of the connection structure between the housing and the heat sink in an embodiment of this disclosure.

[0020] Illustration: 1. Housing; 11. Heat dissipation area; 12. Air inlet; 13. Air outlet; 2. Heat sink; 21. Heat dissipation section; 22. Protrusion; 221. Groove; 222. Air outlet channel; 23. Connecting part; 3. Fan; 4. Sealing component; 41. First part; 42. Second part; 43. Third part; 5. Sealing plate; 6. Detection unit; 7. Display unit; 71. Control board; 72. Display module; 8. Power supply unit; 81. Battery. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0022] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0023] Example 1: Please see Figure 1-9 The heat dissipation structure in this embodiment includes a control board 71 disposed inside the housing 1, a heat sink 2 disposed inside the housing 1 corresponding to the position of the control board 71, a fan 3 disposed on the heat sink 2, and an air inlet 12 disposed in the housing 1 corresponding to the position of the fan 3. A sealing plate 5 is provided inside the housing 1 at the position corresponding to the fan 3, and the sealing plate 5 corresponds to the position of the air inlet 12. A sealing component 4 is provided inside the housing 1 corresponding to the sealing plate 5. A heat dissipation area 11 is formed inside the housing 1 corresponding to the sealing plate 5 and the sealing component 4. The fan 3 is located inside the heat dissipation area 11. A heat dissipation section 21 is formed at the part of the heat sink 2 away from the fan 3. Several protrusions 22 are formed on the heat dissipation section 21. An air outlet channel 222 is formed between two adjacent protrusions 22. The air outlet channel 222 away from the central axis of the heat sink 2 bends toward the heat dissipation area 11. An air outlet hole 13 is opened on the heat dissipation area 11 corresponding to the air outlet direction of the air outlet channel 222. An air inlet hole 12 is located in the heat dissipation area 11. After fan 3 starts working, external air passes through air inlet 12, heat dissipation area 11, air outlet channel 222 and air outlet 13 in sequence, and is discharged from heat dissipation area 11 through air outlet 13. The air outlet direction is the direction in which the airflow flows from air outlet channel 222 to air outlet 13.

[0024] When fan 3 is operating, external air enters the heat dissipation zone 11 through air inlet 12 and flows along the direction of heat sink 2 under the action of fan 3. Since the sealing plate 5 and the sealing member 4 form the heat dissipation zone 11 within the housing 1, the air entering the housing 1 can be confined within the heat dissipation zone 11, reducing the diffusion of airflow to other areas after entering the housing 1. After passing through the air outlet channel 222 formed between adjacent protrusions 22, the airflow exits the heat dissipation zone 11 through the air outlet 13, thus forming a continuous heat dissipation path from air inlet 12, heat dissipation zone 11, air outlet channel 222 to air outlet 13. Through the above airflow path, the air entering the housing 1 can flow in the direction of air inlet 12, heat dissipation zone 11, air outlet channel 222, and air outlet 13, reducing the disorderly diffusion of airflow after entering the housing 1, thereby improving the problem of unclear heat dissipation paths in existing structures.

[0025] The heat dissipation zone 11 is divided within the housing 1 by the sealing plate 5 and the sealing member 4, so that the air intake and exhaust processes of the fan 3 are concentrated within this heat dissipation zone 11. Simultaneously, the heat sink 2 is positioned corresponding to the control board 71, allowing the heat generated during the operation of the control board 71 to be transferred to the heat sink 2. After the fan 3 starts, external air enters the heat dissipation zone 11 through the air inlet 12 and flows through the exhaust channel 222 formed between several protrusions 22 at the heat dissipation section 21 of the heat sink 2. Since the protrusions 22 are located on the heat dissipation section 21, a space is formed between adjacent protrusions 22 for airflow to pass through. Therefore, when the airflow passes through the exhaust channel 222, it can contact the heat dissipation section 21 and the protrusions 22, carrying away some of the heat from the heat sink 2. The exhaust channel 222, away from the central axis of the heat sink 2, bends towards the heat dissipation zone 11, allowing the airflow at the edge to be discharged in the direction corresponding to the air outlet 13, improving the situation where airflow is difficult to discharge from the edge area. Therefore, the above structure can form a clear air intake, heat exchange and exhaust path within the limited space of the shell 1, improve the effectiveness of airflow through the heat dissipation plate 2, reduce the possibility of local heat stagnation near the control plate 71, and make the heat dissipation process relatively stable.

[0026] Since the heat sink 2 is positioned at the corresponding location on the control board 71, and the air outlet 222 is formed on the heat dissipation section 21, the airflow entering from the heat dissipation area 11 will preferentially pass through the corresponding area of ​​the heat sink 2 before flowing towards the air outlet 13. Compared to the method where the airflow diffuses directly inside the housing 1, the above structure enables the airflow to form a corresponding relationship with the corresponding area of ​​the control board 71 during the flow process, thereby reducing the situation where the airflow bypasses the heat dissipation area and is directly discharged.

[0027] The air outlet channel 222, away from the central axis of the heat sink 2, bends towards the heat dissipation area 11, allowing airflow in the edge area of ​​the heat sink 2 to be discharged along the bent air outlet channel 222 towards the corresponding air outlet 13, reducing heat retention caused by obstructed airflow in the edge area. This bending structure, even with limited internal space in the housing 1 and restricted air outlet 13 location, allows the airflow direction of the edge air outlet channel 222 to match the location of the air outlet 13, thus forming a more continuous exhaust path with the heat dissipation area 11. Compared to simply adding a fan 3, opening heat dissipation holes, or setting a straight air outlet channel 222, this method addresses the problem of obstructed airflow at the edges by limiting the shape and direction of the air outlet channel 222.

[0028] Under the aforementioned structure, the sealing plate 5 and the sealing element 4 form a heat dissipation zone 11 within the housing 1. The fan 3 is located within the heat dissipation zone 11, preventing airflow from simply spreading arbitrarily within the housing 1. Instead, the airflow is confined to a relatively defined area, thus solving the problem of unclear airflow paths. Simultaneously, the air inlet 12 is positioned on the housing 1 corresponding to the fan 3, and the air outlet 13 is positioned on the heat dissipation zone 11, corresponding to the air outlet direction of the air outlet channel 222. This allows external air to enter through the air inlet 12, pass through the heat dissipation zone 11 and the air outlet channel 222, and then exit through the air outlet 13, forming a continuous heat dissipation path. Furthermore, the heat sink 2 is positioned corresponding to the control board 71, and several protrusions 22 are provided on the heat dissipation section 21. An air outlet channel 222 is formed between adjacent protrusions 22, allowing airflow to pass through the heat dissipation section 21 of the heat sink 2 before exiting, thereby carrying away the heat transferred from the control board 71 to the heat sink 2. The air outlet channel 222, which is away from the central axis of the heat sink 2, bends towards the heat dissipation area 11, allowing the airflow in the edge area of ​​the heat sink 2 to also flow towards the air outlet 13, reducing heat retention caused by obstructed airflow at the edges. Through the above structural combination, the structure can make the heat dissipation path clearer and improve the problems of insufficient airflow utilization and local heat retention without changing the compact arrangement of the housing 1.

[0029] It should be noted that the heat dissipation zone 11 is the airflow area within the housing 1 defined by the sealing plate 5, the sealing member 4, and the inner wall of the housing 1. The air inlet 12 and the air outlet 13 are both connected to the heat dissipation zone 11, and the fan 3 is located within the heat dissipation zone 11. The heat dissipation section 21 is the area on the heat dissipation plate 2 through which airflow flows and exchanges heat with the airflow. The protrusions 22 are provided on the heat dissipation section 21, and air outlet channels 222 are formed between adjacent protrusions 22.

[0030] It should also be noted that the heat sink 2 and the control board 71 are bonded together using thermally conductive adhesive, allowing the heat generated by the control board 71 to be transferred to the heat sink 2. The central axis of the heat sink 2 is the center line extending from the fan 3 to the heat dissipation section 21 on the heat sink 2, and several air outlet channels 222 are distributed on both sides of the central axis of the heat sink 2. The air outlet direction is the direction in which the airflow flows from the air outlet channel 222 towards the air outlet 13.

[0031] It is worth noting that in the above structure, the airflow does not flow arbitrarily within the casing, but is confined within the heat dissipation area and discharged through the air outlet channel towards the air outlet. Since a heat dissipation plate is positioned corresponding to the control board, and the air outlet channel is formed on the heat dissipation section, when the airflow is confined, its flow path passes through the main heat exchange area, rather than directly diffusing around the heat dissipation location. Furthermore, the air outlet channel at the edge bends towards the heat dissipation area, aligning the exhaust direction of the edge airflow with the location of the air outlet. In this structure, the airflow in the edge area no longer concentrates only in the central region of the heat dissipation plate 2, but can be discharged towards the air outlet 13 along the corresponding bent air outlet channel 222, allowing the edge area of ​​the heat dissipation plate 2 to also participate in the airflow heat exchange process, thereby reducing the possibility of localized temperature rise due to airflow stagnation in the edge area. This not only creates inlet and outlet paths but also ensures that both the central and edge areas participate in exhaust heat exchange, reducing the possibility of stagnation in the edge area due to mismatched airflow directions. In the above structure, the airflow path is not formed by a single air guide structure, but by the positional relationship between the heat dissipation zone 11, the air outlet channel 222 and the air outlet 13, so that the airflow forms a flow path corresponding to the heat dissipation plate 2 inside the housing 1.

[0032] Example 2: The basic content is the same as in Example 1, except that: Please see Figure 2-4 In this embodiment, a U-shaped connecting part 23 is formed on the heat sink 2 at the position corresponding to the fan 3. The fan 3 is mounted on the connecting part 23, and the notch of the connecting part 23 faces the air outlet channel 222.

[0033] In the above structure, the fan 3 can be directly installed at the corresponding position on the heat sink 2, making it easier for the airflow generated by the fan 3 to flow towards the heat sink section 21 and the air outlet channel 222. Since the notch of the connecting part 23 faces the air outlet channel 222, the airflow generated by the fan 3 during operation is not easily blocked by the connecting part 23, and can enter the area where the air outlet channel 222 is located along the direction of the notch, thus cooperating with the heat dissipation path. In addition, the installation position of the fan 3 corresponds to the airflow discharge direction, effectively reducing the situation where the airflow is blocked by the installation structure of the fan 3, thereby further improving the problems of unclear heat dissipation path and insufficient airflow utilization.

[0034] Based on the above structure, the airflow generated by the fan 3 can enter the corresponding air outlet channel 222 through the notch of the connecting part 23 and flow towards the edge area along the air outlet channel 222. Since the air outlet channel 222 in the edge area has a large flow space, the airflow can still be continuously discharged after changing the flow direction, thereby reducing the situation of airflow stagnation caused by insufficient flow space in the edge area.

[0035] Furthermore, the cross-sectional area of ​​several air outlet channels 222 increases in the direction away from the central axis of the heat sink 2, and the width of the inner cavity of the bent air outlet channels 222 increases sequentially in the air outlet direction.

[0036] The cross-sectional area of ​​several air outlet channels 222 increases gradually along the direction away from the central axis of the heat sink 2, providing a larger flow space for the air outlet channels 222 near the edge of the heat sink 2. For the bent air outlet channels 222, the width of their inner cavities increases gradually along the air outlet direction, allowing the airflow to have a gradually expanding exhaust space as it flows within the bent channels. Since the airflow in the edge region of the heat sink 2 is more easily affected by the channel shape and air outlet direction than in the central region, insufficient space in the air outlet channels 222 can lead to poor airflow at the edges. By increasing the area of ​​the air outlet channels 222 away from the central axis of the heat sink 2 and increasing the width of the inner cavities of the bent air outlet channels 222 along the air outlet direction, the possibility of restricted airflow at the edges can be reduced, allowing the airflow to be discharged more smoothly towards the air outlet 13. This effectively improves the problem of uneven airflow distribution and poor exhaust at the edges, which can cause local heat retention, thereby further improving the continuity and stability of the heat dissipation path.

[0037] In the above structure, the air outlet channel 222 in the edge area not only needs to change the airflow discharge direction, but also needs to maintain the corresponding flow space. Therefore, by changing the area and inner cavity width of the air outlet channel 222, the airflow in the edge area can still maintain continuous flow after changing the flow direction.

[0038] Furthermore, the sealing plate 5 is a U-shaped plate, and the opening of the sealing plate 5 corresponds to the air inlet hole 12.

[0039] The sealing plate 5 is configured as a U-shaped plate, and its opening corresponds to the air inlet 12, allowing external air to enter the heat dissipation area 11 through the opening of the sealing plate 5 after entering through the air inlet 12. Since the sealing plate 5 participates in forming the heat dissipation area 11, its opening, corresponding to the air inlet 12, can provide some shielding and limitation to the space surrounding the air inlet area without obstructing the airflow, making it easier for the airflow entering the housing 1 to be introduced into the heat dissipation area 11, rather than diffusing to other areas. In the above structure, the combined action of the sealing plate 5 and the sealing element 4 limits the airflow range, reducing the disorderly diffusion of airflow during the air inlet stage, thereby further solving the problems of unclear heat dissipation paths and difficulty in concentrating airflow through the main heat-generating areas.

[0040] With the cooperation of the above-mentioned structures, the fan 3 is installed inside the connecting part 23 of the heat sink 2, and the notch of the connecting part 23 is oriented towards the air outlet channel 222. This allows the airflow generated by the fan 3 to form a certain directional converging effect before entering the air outlet channel 222, thereby increasing the effective airflow ratio entering the air outlet channel 222 and reducing the possibility of turbulence at the inlet. At the same time, the heat sink 2 and the protrusion 22 adopt an integral molding structure, which makes the geometry of the air outlet channel 222 highly consistent, reducing channel shape deviation caused by assembly errors, thereby improving the stability of airflow within each air outlet channel 222. The variation in the flow cross-sectional area and width of several air outlet channels 222, even with the introduction of local flow resistance by the bent structure, compensates for the airflow pressure drop by gradually expanding the channel space, allowing the airflow in the edge area to maintain a relatively stable discharge state, reducing local backflow or stagnation caused by changes in flow resistance.

[0041] Furthermore, the sealing plate 5 and the sealing element 4 together define the spatial range of the heat dissipation area 11, ensuring that the airflow generated when the fan 3 is working mainly circulates within the heat dissipation area 11. This reduces the possibility of airflow diffusing to other areas of the housing 1 and forms a relatively stable unidirectional flow path within the heat dissipation area 11, allowing the airflow to be directionally discharged after passing through the heat exchange area of ​​the heat sink 2. Simultaneously, the air outlet channel 222 in the edge region structurally forms an enhanced end-venting area, enabling the airflow to continuously accelerate and discharge as it approaches the air outlet 13, thereby improving end-venting efficiency. It is worth noting that the above structure, by defining the spatial relationship between the heat dissipation area 11, the air outlet channel 222, and the air outlet 13, concentrates hot air primarily within the predetermined flow path and reduces the possibility of it diffusing to non-heat exchange areas. This creates a relatively isolated airflow organization structure between hot and non-hot areas within the housing 1, improving the stability of the overall heat dissipation process.

[0042] In one specific embodiment, the heat sink 2 and the protrusion 22 are integrally formed, and both the heat sink 2 and the protrusion 22 are made of thermally conductive material, which is any one of copper, aluminum, or aluminum alloy.

[0043] The heat sink 2 and the protrusion 22 are integrally molded, eliminating the need for additional assembly interfaces between them and reducing the thermal conductivity impact caused by connection gaps. Both the heat sink 2 and the protrusion 22 are made of thermally conductive materials such as copper, aluminum, or aluminum alloy, allowing heat transferred from the control board 71 to the heat sink 2 to be further transferred to the protrusion 22. Since the protrusion 22 is located on the heat dissipation section 21 and adjacent to the air outlet channel 222, airflow passing through the air outlet channel 222 carries away heat from the heat sink 2 and the protrusion 22. This effectively improves the continuity of heat transfer between the heat sink 2 and the protrusion 22, addressing the issues of limited contact area between the heat sink 2 and air, and insufficient localized heat exchange, thereby enhancing the stability of the heat dissipation process.

[0044] The heat sink 2 and the protrusion 22 are integrally molded, eliminating the need for additional connections such as welding, screwing, or snap-fitting. This creates a continuous solid structure, reducing the impact of assembly gaps or insufficient contact on heat transfer and ensuring smoother heat transfer from the control board 71 to the heat sink 2 and then to the protrusion 22. Since the protrusion 22 is located on both sides of the air outlet channel 222, airflow can contact it as it passes through the channel. Therefore, the integral molding structure improves the thermal continuity between the heat sink 2 and the protrusion 22, allowing the protrusion 22 to better participate in the heat dissipation process. Furthermore, the integral molding structure enhances the structural stability between the heat sink 2 and the protrusion 22, reducing the likelihood of loose connections, assembly deviations, or partial detachment affecting the shape of the air outlet channel 222 during long-term use. Since an air outlet channel 222 is formed between adjacent protrusions 22, the positional stability of the protrusions 22 will affect the flow path of the airflow when passing through the air outlet channel 222. Therefore, the one-piece molded structure is conducive to maintaining the shape stability of the air outlet channel 222, so that the airflow can flow along the predetermined path.

[0045] Since an air outlet channel 222 is formed between adjacent protrusions 22, changes in the position of the protrusions 22 will affect the airflow direction and flow space of the air outlet channel 222. The one-piece molded structure can reduce the possibility of positional displacement of the protrusions 22, thereby reducing the possibility of changes in the airflow path.

[0046] In addition, compared with the method of forming the protrusion 22 through subsequent assembly, the one-piece molding structure can reduce the number of parts and assembly steps, so that the heat sink 2 and the protrusion 22 can form the corresponding heat dissipation section 21 and air outlet channel 222 after manufacturing is completed, which helps to reduce assembly complexity and improve product consistency.

[0047] Example 3: The basic content is the same as in Example 1, except that: Please see Figure 2-5In this embodiment, a plurality of grooves 221 are provided on the side of the protrusion 22 near the air outlet channel 222, and the plurality of grooves 221 are distributed along the air outlet direction, and the depth and width of the plurality of grooves 221 increase sequentially along the air outlet direction.

[0048] Since the groove 221 is formed on the side of the protrusion 22 near the air outlet channel 222, it increases the surface area of ​​the protrusion 22 in contact with the airflow, allowing for more contact points between the airflow and the protrusion 22 as it passes through the air outlet channel 222. Simultaneously, the depth and width of the grooves 221 increase sequentially along the air outlet direction, providing greater accommodating space for the grooves 221 near the rear section of the air outlet. Because the airflow pattern in the rear section of the air outlet affects the smooth exit of hot air from the air outlet channel 222, as the airflow gradually approaches the air outlet hole 13, the airflow within the multiple air outlet channels 222 gradually converges. Therefore, the area near the rear section of the air outlet is more prone to localized restricted ventilation. By increasing the depth and width of the grooves 221 along the air outlet direction, the contact space between the airflow and the protrusion 22 in the rear section of the air outlet can be increased, facilitating ventilation in conjunction with the air outlet channel 222. This improves the limited heat exchange area of ​​the protrusion 22 and the insufficient contact between the airflow and the protrusion 22, thereby reducing the possibility of localized heat retention.

[0049] Furthermore, the groove 221 is inclined on the protrusion 22, and the groove 221 is inclined in the direction of air outlet, with an inclination angle of 5-10°.

[0050] When airflow passes the side of the protrusion 22 along the outlet direction, the groove 221, which is inclined towards the outlet direction, reduces the obstruction of airflow caused by the structure of the groove 221, allowing the airflow to continue to exit along the outlet direction even after passing the location of the groove 221. The inclination angle of the groove 221 is 5-10°, which allows the groove 221 to maintain its inclined guiding function while avoiding an excessively large inclination angle that would increase the flow resistance when the airflow enters or leaves the groove 221. This structure increases the heat exchange contact area of ​​the protrusion 22 while ensuring the smoothness of airflow exit within the outlet channel 222, thereby improving the problem of unstable heat dissipation caused by obstructed airflow. In the above structure, the groove 221 does not use the same size or the same spacing along the entire outlet direction, but gradually changes with the airflow direction, thus maintaining a relatively continuous exhaust space near the rear section of the outlet.

[0051] For example, the inclination angle of the groove 221 is 8°. Setting the inclination angle of the groove 221 to 8° allows the groove 221 to increase the contact area between the protrusion 22 and the airflow while also guiding the airflow and reducing the obstruction of the airflow discharge by the edge of the groove 221. Compared to a smaller inclination angle, 8° makes the airflow direction of the groove 221 more defined; compared to a larger inclination angle of nearly 10°, 8° avoids excessive inclination, which would increase the flow resistance when the airflow enters or leaves the groove 221. Therefore, this angle is beneficial for balancing the heat exchange contact area of ​​the protrusion 22 and the smoothness of airflow discharge in the air outlet channel 222, thereby improving the problems of local heat retention and unstable heat dissipation.

[0052] Furthermore, several grooves 221 are distributed at intervals, and the interval distance increases sequentially along the air outlet direction.

[0053] The spacing between the grooves 221 increases sequentially along the air outlet direction, making the grooves 221 near the rear section of the air outlet relatively sparsely distributed. Since the airflow continuously flows towards the air outlet 13 within the air outlet channel 222, a relatively smooth discharge space is needed in the rear section of the air outlet. If the grooves 221 are too dense, it will increase the resistance during airflow. By increasing the spacing between the grooves 221 along the air outlet direction, a relatively continuous flow space can be provided for the airflow in the rear section of the air outlet while ensuring that the grooves 221 increase the heat exchange contact area. Because the airflow near the air outlet 13 gradually converges, if the rear section of the grooves 221 is too densely distributed, it will easily affect the continuous discharge of airflow. Therefore, increasing the spacing between the rear section of the grooves 221 reduces the possibility of restricted airflow in the rear section. The grooves 221 with progressively increasing spacing along the air outlet direction can further improve the problem of unsmooth airflow discharge within the air outlet channel 222 and reduce the possibility of heat retention due to local airflow obstruction.

[0054] Based on the above structure, the grooves 221 are arranged within the airflow action area corresponding to the air outlet channel 222, and have a certain angle relationship with the mainstream airflow direction. This causes the local flow state of the airflow to change from a single planar contact to a multi-path alternating contact state when passing over the surface of the protrusion 22. This means the flow process is no longer limited to a single shear interface, but forms a continuously changing contact path in a local area. Because the grooves 221 have varying spatial intervals, the interaction intensity between the airflow and the protrusion 22 exhibits a phased change characteristic during the flow along the air outlet channel 222. This avoids the formation of a continuous concentrated point of action in a local area, reducing the unevenness of local heat transfer. Simultaneously, the structural parameters of the grooves 221 have a gradual change characteristic in the flow direction, causing the airflow state to gradually transition from a relatively restricted state to a relatively open discharge state before approaching the air outlet 13. This ensures that the heat exchange contact process continues while maintaining relatively stable flow continuity during the final discharge stage. Therefore, the function of this structure is not only to increase the heat exchange contact area, but also to adjust the airflow action mode in stages through local geometric changes, so that the airflow forms a continuous transition between the heat exchange process and the exhaust process, thereby improving the problems of local concentration of action and uneven end discharge that are prone to occur in traditional uniform structures.

[0055] Example 4: The basic content is the same as in Example 1, except that: Please see Figure 8-9 In this embodiment, the sealing member 4 is formed in the heat dissipation area 11 corresponding to the air inlet 12. The sealing member 4 includes a first part 41 and a second part 42 connected to each other. The air inlet 12 is located in the first part 41. The sealing plate 5 overlaps with the first part 41 and the second part 42 respectively. The width of the second part 42 is adapted to the width of the sealing plate 5.

[0056] The sealing plate 5 overlaps with the first part 41 and the second part 42 respectively, forming a continuous mating structure between the sealing plate 5 and the sealing member 4, reducing uncontrolled airflow gaps between them. The second part 42 is adapted to the width of the sealing plate 5, allowing it to form a corresponding fit with the sealing plate 5 in the width direction, thereby enhancing the limiting effect of the sealing plate 5 and the sealing member 4 on the boundary of the heat dissipation area 11. Under the above structure, after external air enters through the air inlet 12, its flow range is constrained by the first part 41, the second part 42, and the sealing plate 5, reducing the possibility of airflow diffusing outside the heat dissipation area 11 after entering through the air inlet 12. It also improves the problem of unclear airflow paths at the air inlet position, making it easier for airflow to enter the corresponding heat dissipation path, thereby improving airflow utilization and reducing the possibility of unstable heat dissipation effect.

[0057] Since the first part 41 and the second part 42 correspond to the air intake area and the overlapping area of ​​the sealing plate 5 respectively, the airflow entering the heat dissipation area 11 can flow along the direction restricted between the sealing plate 5 and the sealing member 4, reducing the situation where the airflow directly diffuses to other areas of the housing 1 during the entry stage.

[0058] Furthermore, the sealing component 4 also includes a third part 43, which is connected to the first part 41. The third part 43 is disposed in the heat dissipation area 11 corresponding to the air outlet 13, and the width of the third part 43 is smaller than the width of the second part 42.

[0059] Because the third part 43 is positioned corresponding to the air outlet 13, it can restrict the airflow boundary within the heat dissipation area 11 near the air outlet, making it easier for the airflow to be discharged towards the air outlet 13 after passing through the air outlet channel 222. Simultaneously, the width of the third part 43 is smaller than the width of the second part 42, allowing for a relatively larger airflow passage space near the air outlet 13, preventing the sealing component 4 from occupying too much space at the air outlet and affecting airflow discharge. When the third part 43 is positioned corresponding to the air outlet 13, a relatively continuous exhaust space is still maintained near the air outlet, allowing the airflow to continue flowing towards the air outlet 13 after passing through the air outlet channel 222, thereby reducing localized airflow accumulation during the air outlet stage.

[0060] Under the aforementioned structure, the sealing component 4 can simultaneously constrain the airflow at both the inlet and outlet positions, reducing disordered airflow diffusion during the inlet phase while lowering the possibility of obstructed airflow during the outlet phase. This further improves the problems of unclear heat dissipation paths and unsmooth airflow at the outlet position, enhancing the continuity of the heat dissipation path and the stability of the heat dissipation process.

[0061] Furthermore, in the above structure, the area near the air inlet 12 is mainly used to restrict airflow diffusion, so the corresponding area adopts a more continuous boundary structure; while the area near the air outlet 13 needs to take into account the exhaust space, so the area corresponding to the third part 43 retains a relatively large airflow passage space.

[0062] It should be noted that the first part 41 surrounds the air inlet 12 and is used to define the area where the air inlet 12 is located; the second part 42 overlaps with the sealing plate 5 and is used to form the lateral boundary of the heat dissipation area 11 together with the sealing plate 5; the third part 43 is set corresponding to the air outlet 13 and is used to define the airflow boundary near the air outlet 13. The width of the third part 43 is smaller than the width of the second part 42, so that a relatively large airflow passage space is retained near the air outlet 13.

[0063] Based on the above structural foundation, the sealing component 4 forms different structural zones at the corresponding positions of the air inlet 12 and the air outlet 13, so that the airflow entering the shell 1 is spatially constrained in the initial stage. This makes it difficult for the airflow to diffuse into non-target areas after entering the heat dissipation zone 11, and allows it to gradually adjust its flow direction within a relatively limited area. Since the sealing plate 5 and the sealing component 4 form a mating boundary within the shell 1, the local space of the heat dissipation zone 11 exhibits a relatively continuous restricted flow characteristic. This allows the airflow to enter the heat dissipation zone along a relatively stable path during the entry stage, reducing the flow divergence caused by the open inlet space. At the same time, in the area near the air outlet 13, since the sealing component 4 still maintains boundary constraints on the local space, but at the same time reserves a relatively continuous exhaust space, the airflow can continue to converge towards the air outlet 13 under limited constraints after completing heat exchange, thereby avoiding excessive contraction or local obstruction during the exhaust stage. Therefore, by setting different spatial constraints for the air intake and air exhaust stages, the structure enables the airflow to form a staged flow process inside the shell 1, which is controlled, stable, and continuous, rather than the overall uniform diffusion mode caused by the same boundary form in the air intake and air exhaust areas in the traditional structure. Thus, the orderly control of the airflow path is achieved without adding additional power components.

[0064] This disclosure also provides an optical module end face detection device. The detection device includes a heat dissipation structure as described in any of the above embodiments. The detection device also includes a detection unit 6, a display unit 7 and a power supply unit 8 disposed in the housing 1, and a control board 71 disposed in the display unit 7.

[0065] The power supply unit 8 includes a battery 81, which is electrically connected to the fan 3. The battery 81 is located on the side of the cover plate 5 away from the fan 3.

[0066] The display unit 7 also includes a display module 72, which is connected to the control board 71 via a signal and is mounted on the housing 1.

[0067] In the optical module end-face inspection device, a detection unit 6, a display unit 7, and a power supply unit 8 are arranged inside the housing 1 of the inspection device. The detection unit 6 is used to inspect the end face of the optical module, the display unit 7 is used to display the inspection information, and the power supply unit 8 is used to supply power to the electrical components inside the device. The control board 71 is located inside the display unit 7 and is signal-connected to the display module 72, enabling the control board 71 to control the inspection and display process. The display module 72 is located on the housing 1 for easy viewing of the inspection results by the user.

[0068] In this detection device, the power supply unit 8 includes a battery 81, which is electrically connected to the fan 3 to provide operating power to the fan 3. The battery 81 is located on the side of the sealing plate 5 away from the fan 3. The sealing plate 5 separates the battery 81 from the heat dissipation area 11 where the fan 3 is located, so that the airflow generated when the fan 3 is working mainly flows within the heat dissipation area 11, reducing the impact of hot air on the area where the battery 81 is located. Thus, this optical module end face detection device can simultaneously perform end face detection and result display, and dissipate heat from components such as the control board 71 through the above-mentioned heat dissipation structure, thereby improving the problem of unclear heat dissipation path and easy heat retention inside the housing 1.

[0069] It should be noted that the detection unit 6, the power supply unit 8, and the display unit 7 are all technical means well known to those skilled in the art, and will not be described in detail in this embodiment.

[0070] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0071] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A heat dissipating structure comprising a control board (71) disposed in a housing (1), characterized in that, A heat sink (2) is provided inside the housing (1) at the position corresponding to the control board (71), and a fan (3) is provided on the heat sink (2). An air inlet (12) is provided on the housing (1) at the position corresponding to the fan (3). A sealing plate (5) is provided inside the housing (1) at the position corresponding to the fan (3), and the sealing plate (5) corresponds to the position of the air inlet (12). A sealing member (4) is provided inside the housing (1) corresponding to the sealing plate (5). A heat dissipation area (11) is formed inside the housing (1) corresponding to the sealing plate (5) and the sealing member (4). The fan (3) is located inside the heat dissipation area (11). The heat sink (2) has a heat dissipation section (21) at a location away from the fan (3). Several protrusions (22) are formed on the heat dissipation section (21). An air outlet channel (222) is formed between two adjacent protrusions (22). The air outlet channel (222) away from the central axis of the heat sink (2) bends toward the heat dissipation area (11). An air outlet hole (13) is provided on the heat dissipation area (11) in the direction of the air outlet channel (222). The air inlet hole (12) is located in the heat dissipation area (11).

2. The heat dissipating structure according to claim 1, wherein A U-shaped connecting part (23) is formed on the heat sink (2) corresponding to the position of the fan (3). The fan (3) is set on the connecting part (23), and the notch of the connecting part (23) faces the direction of the air outlet channel (222).

3. The heat dissipating structure according to claim 1, wherein The cross-sectional area of ​​the air outlet channels (222) increases in a direction away from the central axis of the heat sink (2), and the width of the inner cavity of the bent air outlet channels (222) increases sequentially in the air outlet direction.

4. The heat dissipating structure according to claim 1, wherein The sealing plate (5) is a U-shaped plate, and the opening of the sealing plate (5) corresponds to the air inlet (12).

5. The heat dissipating structure according to claim 1, wherein The protrusion (22) has several grooves (221) on one side near the air outlet channel (222), and the grooves (221) are distributed along the air outlet direction. The depth and width of the grooves (221) increase sequentially along the air outlet direction.

6. The heat dissipation structure according to claim 5, characterized in that, The groove (221) is inclined on the protrusion (22) and the groove (221) is inclined in the direction of air outlet. The inclination angle of the groove (221) is 5-10°.

7. The heat dissipation structure according to claim 5, characterized in that, The grooves (221) are spaced apart, and the spacing between them increases sequentially along the air outlet direction.

8. The heat dissipation structure according to claim 1, characterized in that, The sealing member (4) is formed in the heat dissipation area (11) corresponding to the air inlet (12). The sealing member (4) includes a first part (41) and a second part (42) connected to each other. The air inlet (12) is located in the first part (41). The sealing plate (5) overlaps with the first part (41) and the second part (42) respectively. The width of the second part (42) is adapted to the width of the sealing plate (5).

9. The heat dissipation structure according to claim 8, characterized in that, The sealing component (4) also includes a third part (43), which is connected to the first part (41). The third part (43) is located in the heat dissipation area (11) corresponding to the air outlet (13). The width of the third part (43) is smaller than the width of the second part (42).

10. A device for detecting the end face of an optical module, characterized in that, The detection device includes a heat dissipation structure as described in any one of claims 1-9, and the detection device further includes a detection unit (6), a display unit (7) and a power supply unit (8) disposed in the housing (1), and the control board (71) is disposed in the display unit (7).

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