Heat dissipation monitoring camera

Abstract

The invention discloses a heat dissipation monitoring camera, and relates to the technical field of image acquisition equipment, the heat dissipation monitoring camera comprises a camera main body, the camera main body is internally provided with an element cavity, the top end of the camera main body is provided with a heat dissipation module limiting groove, and the heat dissipation module limiting groove is internally provided with a heat dissipation module main body; the front end and the rear end of the heat dissipation module body are provided with integrally-formed installation heads, the two sides of the heat dissipation module body are provided with installation grooves connected with the installation heads in a clamped mode, one ends of the installation grooves are provided with insertion grooves, guide grooves are formed in the installation heads, and insertion plates matched with the insertion grooves in an inserted mode are arranged in the guide grooves in a sliding and limiting mode. The plug board is telescopically adjusted through a self-locking transmission assembly arranged in the guide groove, an inner circulation air duct is arranged in the heat dissipation module body, and the problems that a heat dissipation structure of the monitoring camera is troublesome to disassemble and assemble, high in cost and poor in heat dissipation effect are solved.

Description

Technical Field

[0001] This invention relates to the field of image acquisition equipment technology, specifically a heat dissipation monitoring camera. Background Technology

[0002] A surveillance camera is an electronic device that can capture visual information in a space in real time through optical imaging elements (such as lenses and image sensors), convert it into electrical or digital signals, and then send the video data to storage devices (such as hard disk recorders) or display terminals (such as monitors) through wired or wireless transmission. This enables real-time monitoring, dynamic recording, and post-event traceability of specific areas, and is widely used in security protection, traffic management, production supervision, home care, and other scenarios.

[0003] For example, the Chinese authorized patent CN112995483B, entitled "An Intelligent Security Monitoring Camera," includes a camera body that is slidably disposed inside a protective housing. A connector is hinged to the camera body. A first drive mechanism for driving the camera body to slide is fixedly installed inside the protective housing. The first drive mechanism is driven to connect with the connector, and the connector is slidably connected to the protective housing. A pressure sensor is provided on the camera body. A second drive mechanism for driving the camera body to rotate is fixedly installed on the connector. The first drive mechanism, the second drive mechanism, and the pressure sensor are all electrically connected to a controller, and the controller is connected to an alarm.

[0004] While the existing technologies mentioned above have certain protective functions, they have shortcomings in heat dissipation design: on the one hand, the existing heat dissipation structures are mostly integrated designs, which are more troublesome and costly to install and replace parts; on the other hand, the heat dissipation methods are mostly external designs, relying on heat exchange through contact with the shell or built-in heat-conducting plates to achieve heat dissipation, which has poor heat dissipation effect and therefore does not meet the current needs. In response, we propose a heat dissipation monitoring camera. Summary of the Invention

[0005] The purpose of this invention is to provide a heat dissipation surveillance camera to solve the problems of cumbersome disassembly and assembly, high cost, and poor heat dissipation effect of the heat dissipation structure of surveillance cameras mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation monitoring camera, comprising a camera body, a lens mounted on the front end of the camera body, a component cavity inside the camera body, a heat dissipation module limiting groove at the top of the camera body, a heat dissipation module body mounted inside the heat dissipation module limiting groove, and the heat dissipation module body engaging with the heat dissipation module limiting groove, an integrally formed mounting head at the front and rear ends of the heat dissipation module body, mounting grooves on both sides of the heat dissipation module body engaging with the mounting head, a plug-in groove at one end of the mounting groove, a guide groove inside the mounting head, a plug-in plate slidingly limiting the plug-in plate engaging with the plug-in groove inside the guide groove, the plug-in plate being telescopically adjusted by a self-locking transmission component built into the guide groove, an internal circulation air duct inside the heat dissipation module body, and after the heat dissipation module body is plugged into the camera body, the air outlet and air inlet at the front and rear of its bottom are connected to the component cavity of the camera body, and a negative pressure fan is installed inside the air outlet.

[0007] Preferably, the self-locking transmission assembly includes a transmission block, which is disposed at the inner end of the plug-in plate and is integrally formed with the plug-in plate. The transmission block has a U-shaped opening groove inside, and a rack plate is provided on one side wall of the U-shaped opening groove. A sector gear is provided inside the U-shaped opening groove. The shaft at the bottom of the sector gear is connected to the mounting head through a bearing, and the sector gear meshes with the rack plate.

[0008] Preferably, the inner side of the sector gear is provided with a transmission gear that meshes with it, and the shaft at the bottom of the transmission gear is connected to the mounting head through a bearing. A worm gear is installed on the shaft at the top of the transmission gear, and a worm is provided at the inner end of the worm gear. The worm is adapted to the worm gear. Mounting seats are installed at the front and rear of the worm through bearings, and the bottom of the mounting seats is fixed to the mounting head. An adjusting roller is fixedly provided at one end of the worm.

[0009] Preferably, the heat dissipation module body has an internal circulation air duct, and the air outlet and air inlet are respectively connected to the internal circulation air duct. An active cooling device is provided at the upper end of the internal circulation air duct. The active cooling device consists of a metal plate and a semiconductor electronic cooling chip built into the metal plate, and the cold end of the semiconductor electronic cooling chip contacts the internal circulation air duct.

[0010] Preferably, the interior of the internal circulation duct is provided with multiple staggered cooling plates, the bottom surface of which is in contact with the internal circulation duct, and the top of which is integrally formed with the metal plate of the active cooling device.

[0011] Preferably, a filter screen is provided at the channel opening formed by the cold guide plate and the main body of the heat dissipation module, and the filter screen is snapped into place with the cold guide plate.

[0012] Preferably, the top of the active cooling device is provided with a plurality of equally spaced heat dissipation fins, and the heat dissipation fins are integrally formed with the metal plate of the active cooling device.

[0013] Preferably, a first elastic contact electrode is provided on one side wall of the heat dissipation module limiting groove, and a second contact electrode is provided on one side wall of the heat dissipation module body. After the heat dissipation module body is engaged with the heat dissipation module limiting groove, the first contact electrode and the second contact electrode are electrically connected to supply power to the active cooling device and the negative pressure fan.

[0014] Preferably, the top and bottom edges of the outer end of the plug-in plate are chamfered.

[0015] Preferably, the plane where the apex of the adjustment roller is located is higher than the upper surface of the heat dissipation module body.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention employs a modularly designed heat dissipation module. The top of the camera body has a pre-drilled groove for installing the heat dissipation module. During installation, simply insert the heat dissipation module directly into the groove, then rotate the adjusting rollers on both sides of the mounting head of the heat dissipation module body. This rotates the worm gear, and the contact surface between the worm gear and the worm wheel forms a spiral friction transmission surface. The rotation of the worm gear drives the worm wheel to rotate. The shaft at the lower end of the worm wheel connects to a transmission gear, causing the transmission gear to rotate. The meshing action causes the transmission gear to drive the sector gear to rotate, and the gear ring of the sector gear meshes with the rack plate inside the connector plate. This converts rotational motion into linear motion, causing the connector plate to extend from inside the mounting head and into the connector slot of the camera body, forming a quick connection between the heat dissipation module and the camera body. This not only avoids the loosening problem that may occur with manual plugging and unplugging, but also creates a tight, rigid connector structure to ensure smooth heat dissipation, improve heat dissipation efficiency, and enhance the stability of the camera during long-term operation. Furthermore, since the entire installation process only involves two steps—inserting and rotating the roller—and requires no additional tools, it lowers the operational threshold, facilitates daily maintenance and replacement, and saves installation time and labor costs, greatly facilitating the daily use and management of the camera.

[0017] 2. The heat dissipation module of this invention achieves heat dissipation of the internal components of the camera through an internal circulation active cooling method. The core of the heat dissipation module is an internal circulation air duct. The front and rear ends of the internal circulation air duct are respectively provided with an air outlet and an air inlet. By opening the negative pressure fan inside the air outlet, a negative pressure is created in the internal circulation air duct, allowing air from inside the camera body to continuously enter the internal circulation air duct through the air inlet. An active cooling device is installed at the top of the internal circulation air duct. The active cooling device consists of a metal plate and a semiconductor electronic cooling chip built into the metal plate. Multiple cold-conducting plates extending into the internal circulation air duct are provided at the bottom of the active cooling device. The cold-conducting plates are staggered within the internal circulation air duct, allowing the air passing through to... When the air passes between the cooling plates, it moves in an S-shape, which increases the contact area between the air and the cooling plates and extends the cooling time of the air in the air duct. This allows the air to fully absorb the cooling energy before flowing back into the camera. Compared with passive heat dissipation, it can reduce the temperature to a safe range more quickly. It is especially suitable for the continuous heat dissipation needs generated by the camera during long-term operation. Because it adopts an internal circulation design, the heat dissipation process does not depend on the external ambient air. Even in outdoor or industrial scenarios with a lot of dust, high humidity, or extreme temperatures, it can prevent external impurities from entering the camera and causing component contamination or short circuits. At the same time, there is no need to worry about the external high temperature environment affecting the heat dissipation efficiency, ensuring that the equipment can still dissipate heat stably in complex environments. Attached Figure Description

[0018] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a perspective view of the camera body of the present invention; Figure 3 This is a perspective view of the heat dissipation module of the present invention; Figure 4 This is a schematic diagram of the internal airflow structure of the heat dissipation module of the present invention; Figure 5 This is a schematic diagram of the plug-in plate transmission structure of the present invention; Figure 6 This is a schematic diagram of the transmission structure of the plug-in plate after removing the mounting head according to the present invention.

[0019] In the diagram: 1. Camera body; 2. Lens; 3. Heat dissipation module body; 4. Mounting head; 5. Heat dissipation fins; 6. Adjusting roller; 7. Heat dissipation module limiting groove; 8. Mounting groove; 9. First contact electrode; 10. Insertion groove; 11. Second contact electrode; 12. Active cooling device; 13. Guide groove; 14. Insertion plate; 15. Internal circulation air duct; 16. Air outlet; 17. Negative pressure fan; 18. Air inlet window; 19. Cooling plate; 20. Filter screen; 21. Transmission block; 22. Rack plate; 23. Worm gear; 24. Mounting base; 25. Worm wheel; 26. Transmission gear; 27. Sector gear. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Please see Figure 1-6 This invention provides an embodiment of a heat dissipation monitoring camera, comprising a camera body 1, a lens 2 mounted on the front end of the camera body 1, a component cavity inside the camera body 1, a heat dissipation module limiting groove 7 at the top end of the camera body 1, a heat dissipation module body 3 mounted inside the heat dissipation module limiting groove 7, and the heat dissipation module body 3 engaging with the heat dissipation module limiting groove 7; integrally formed mounting heads 4 at the front and rear ends of the heat dissipation module body 3; and mounting grooves 8 on both sides of the heat dissipation module body 3 engaging with the mounting heads 4. One end of the 8 is provided with a plug-in slot 10, and the inside of the mounting head 4 is provided with a guide slot 13. The inside of the guide slot 13 is a sliding limiter for a plug-in plate 14 that is plugged into the plug-in slot 10. The plug-in plate 14 is extended and retracted by a self-locking transmission component built into the guide slot 13. The inside of the heat dissipation module body 3 is provided with an internal circulation air duct 15. After the heat dissipation module body 3 is plugged into the camera body 1, the air outlet 16 and air inlet 18 at the bottom front and rear are connected to the component cavity of the camera body 1. A negative pressure fan 17 is installed inside the air outlet 16. When installing the heat dissipation module body 3, first snap it into the heat dissipation module limiting groove 7 at the top of the camera body 1. Adjust the plug-in plate 14 to slide in the guide groove 13 through the self-locking transmission component, so that the plug-in plate 14 is inserted into the plug-in groove 10 to complete the fixation. During heat dissipation, the negative pressure fan 17 in the air outlet 16 is started to form a negative pressure in the internal circulation air duct 15 of the heat dissipation module body 3. The hot air in the component cavity of the camera body 1 enters the internal circulation air duct 15 from the air inlet 18, and after being processed, it is discharged from the air outlet 16 to achieve air circulation. The modular snap-fit ​​and plug-in plate fixation make the heat dissipation module easy to install and the connection stable. The air circulation driven by the negative pressure fan can quickly introduce the hot air in the component cavity into the internal circulation air duct, avoid heat accumulation, and ensure the normal operation of the internal components of the camera.

[0022] Please see Figure 3 , Figure 5 and Figure 6 The self-locking transmission assembly includes a transmission block 21, which is disposed at the inner end of the plug-in plate 14 and is integrally formed with the plug-in plate 14. The transmission block 21 has a U-shaped opening groove inside, and a rack plate 22 is provided on one side wall of the U-shaped opening groove. A sector gear 27 is provided inside the U-shaped opening groove. The shaft at the bottom of the sector gear 27 is connected to the mounting head 4 through a bearing, and the sector gear 27 meshes with the rack plate 22. When the self-locking transmission assembly operates, the sector gear 27 rotates around the bearing connected to the mounting head 4 at the bottom. Because the sector gear 27 meshes with the rack plate 22 on the side wall of the U-shaped opening slot of the transmission block 21, the rotation of the sector gear 27 drives the rack plate 22 to move, thereby causing the plug plate 14, integrally formed with the transmission block 21, to slide within the guide groove 13, achieving the extension and retraction of the plug plate 14. Furthermore, the meshing structure maintains a stable position after adjustment, forming a self-locking mechanism. Through the meshing transmission of the gear and rack, precise extension and retraction of the plug plate is achieved, ensuring the accuracy of the connection between the heat dissipation module and the camera body. The self-locking function prevents the plug plate from loosening during use, ensuring the heat dissipation module is securely installed and avoiding any impact on heat dissipation due to connection issues.

[0023] Please see Figure 5 and Figure 6 The inner side of the sector gear 27 is provided with a transmission gear 26 that meshes with it, and the shaft at the bottom of the transmission gear 26 is connected to the mounting head 4 through a bearing. A worm gear 25 is installed on the shaft at the top of the transmission gear 26. A worm 23 is provided at the inner end of the worm gear 25, and the worm 23 is adapted to the worm gear 25. A mounting seat 24 is installed at the front and rear of the worm 23 through a bearing, and the bottom of the mounting seat 24 is fixed to the mounting head 4. An adjusting roller 6 is fixedly provided at one end of the worm 23. The plane where the apex of the adjusting roller 6 is located is higher than the upper surface of the heat dissipation module body 3. Rotating the adjusting roller 6 causes the worm 23, which is fixed to it, to rotate around the bearing on the mounting base 24. Because the worm 23 and the worm wheel 25 are meshed, the rotation of the worm 23 drives the worm wheel 25 to rotate. The worm wheel 25 drives the transmission gear 26 on the top shaft to rotate around the bearing connected to the mounting head 4 at the bottom. The transmission gear 26 then meshes with the sector gear 27, driving the sector gear 27 to rotate, ultimately realizing the extension and retraction adjustment of the plug-in plate 14. Moreover, the worm gear structure has a reverse self-locking characteristic, which can prevent the transmission gear 26 from driving the worm 23 to rotate in the opposite direction. The position of the adjusting roller is easy to operate. Through the multi-stage transmission of the worm gear and gear, the extension and retraction of the plug-in plate can be easily controlled, reducing the installation difficulty. The reverse self-locking characteristic further ensures the stability of the plug-in plate position, avoiding loosening of the connection due to external force. At the same time, the multi-stage transmission can improve the adjustment accuracy and ensure that the plug-in plate is accurately inserted into the plug-in slot.

[0024] Please see Figure 4 The heat dissipation module body 3 has an internal circulation air duct 15 inside, and the air outlet 16 and air inlet 18 are respectively connected to the internal circulation air duct 15. An active cooling device 12 is provided at the upper end of the internal circulation air duct 15. The active cooling device 12 consists of a metal plate and a semiconductor electronic cooling chip built into the metal plate, and the cold end of the semiconductor electronic cooling chip contacts the internal circulation air duct 15. After the active cooling device 12 is powered on, the built-in semiconductor electronic cooling chip starts working, and its cold end transfers cooling energy to the inner circulation air duct 15 in contact with it. At the same time, the negative pressure fan 17 starts, allowing hot air from the component cavity of the camera body 1 to enter the inner circulation air duct 15 through the air inlet 18. The hot air comes into contact with the air duct wall being cooled by the cooling energy in the air duct, and the heat is absorbed, achieving air cooling. The cooled air then participates in the internal air circulation of the device. The semiconductor electronic cooling chip is small in size and has low energy consumption, and can stably provide cooling energy. Combined with the inner circulation air duct, it can directly cool the incoming hot air, resulting in high cooling efficiency. Moreover, the cold end directly contacts the inner circulation air duct, resulting in low cooling energy transfer loss, which can quickly reduce the air temperature in the air duct, effectively control the temperature of the internal components of the camera, and avoid high temperature affecting the performance of the device.

[0025] Please see Figure 4 The internal circulation air duct 15 is provided with multiple staggered cooling plates 19. The bottom surface of the cooling plate 19 is in contact with the internal circulation air duct 15, and the top of the cooling plate 19 is integrally formed with the metal plate of the active cooling device 12. The cooling capacity of the active cooling device 12 is transferred through a metal plate to an integrally formed cooling guide plate 19. The bottom surface of the cooling guide plate 19 contacts the internal circulation air duct 15, further expanding the cooling coverage area. When hot air enters the internal circulation air duct 15, due to the staggered distribution of the cooling guide plates 19, the air is forced to move in an S-shape, making full contact with the cooling guide plates 19 during the movement. The cooling capacity on the cooling guide plates 19 absorbs the heat from the air, achieving deep cooling of the air. The staggered distribution of the cooling guide plates extends the path of the air in the air duct, increases the contact area and time between the air and the cold source, and significantly improves the cooling effect. The integral formation of the cooling guide plate and the metal plate of the active cooling device ensures efficient cooling capacity transfer, avoids cooling capacity loss, and ensures stable cooling efficiency.

[0026] Please see Figure 4 A filter 20 is installed at the channel opening formed by the cold-conducting plate 19 and the heat dissipation module body 3. The filter 20 is snap-fitted with the cold-conducting plate 19. When hot air enters the internal circulation duct from the air inlet and flows through the channel opening formed by the cold-conducting plate and the heat dissipation module body, the filter 20 filters the air, intercepting dust, impurities, and other particulate matter in the air. This prevents these impurities from entering the internal circulation duct and adhering to the cold-conducting plate or active cooling device, and also prevents impurities from entering the camera body component cavity. The filter effectively blocks impurities, keeps the internal circulation duct, cold-conducting plate, and active cooling device clean, prevents impurities from affecting the transfer of cold energy and airflow, and ensures long-term stable heat dissipation efficiency. It also prevents impurities from entering the component cavity and causing contamination or damage to the internal components of the camera, extending the service life of the equipment. Furthermore, the snap-fit ​​design of the filter makes it easy to disassemble, clean, or replace, facilitating maintenance.

[0027] Please see Figure 1 and Figure 3The active cooling device 12 has multiple equidistantly distributed heat dissipation fins 5 at its top, and the heat dissipation fins 5 are integrally formed with the metal plate of the active cooling device 12. When the semiconductor electronic cooling chip of the active cooling device 12 is working, its hot end generates heat, which is transferred to the metal plate and then diffused into the surrounding air through the heat dissipation fins 5 integrally formed with the metal plate. The large number and equidistant distribution of the heat dissipation fins 5 increase the contact area with the air, accelerate the heat dissipation speed, and prevent heat accumulation at the hot end of the cooling chip from affecting the cooling effect at the cold end. The heat dissipation fins can quickly dissipate the heat from the hot end of the semiconductor electronic cooling chip, prevent the hot end from overheating and causing a decrease in cooling efficiency, ensure the continuous and stable output of cooling capacity of the active cooling device, and guarantee the overall heat dissipation effect of the heat dissipation system. The fins are integrally formed with the metal plate, which ensures efficient heat transfer, and the equidistant distribution ensures uniform heat dissipation, further improving the heat dissipation efficiency of the heat dissipation fins.

[0028] Please see Figure 2 and Figure 3 A first elastic contact electrode 9 is provided on one side wall of the heat dissipation module limiting groove 7, and a second contact electrode 11 is provided on one side wall of the heat dissipation module body 3. After the heat dissipation module body 3 is snapped into the heat dissipation module limiting groove 7, the first contact electrode 9 and the second contact electrode 11 are electrically connected to supply power to the active cooling device 12 and the negative pressure fan 17. When the heat dissipation module body 3 is snapped into the heat dissipation module limiting groove 7 of the camera body 1, as it is snapped into place, the first elastic contact electrode 9 on the heat dissipation module limiting groove 7 and the second contact electrode 11 on the heat dissipation module body 3 come into contact with each other. Since the first contact electrode is connected to the camera power supply system and the second contact electrode is connected to the active cooling device 12 and the negative pressure fan 17, a complete circuit is formed after contact, realizing the power supply to the active cooling device and the negative pressure fan. Power can be supplied without additional wiring, simplifying the installation process of the heat dissipation module and improving installation efficiency; the flexible first contact electrode can ensure close contact with the second contact electrode, avoiding unstable power supply due to poor contact, ensuring the continuous normal operation of the active cooling device and negative pressure fan, while eliminating wiring steps, reducing the risk of line connection failure, and improving the reliability of equipment use.

[0029] Working principle: When using this heat dissipation monitoring camera, first align the heat dissipation module body 3 with the heat dissipation module limiting groove 7 at the top of the camera body 1 and insert it. Then, rotate the adjusting rollers 6 on the mounting heads 4 on both sides of the heat dissipation module body 3. Through the meshing of the worm gear 23 and worm wheel 25, and the meshing of the transmission gear 26 and sector gear 27, the rack plate 22 on the transmission block 21 is moved, causing the insertion plate 14 in the guide groove 13 to extend and insert into the insertion groove 10 at one end of the mounting groove 8, thus completing the fixation of the heat dissipation module and the camera body. At this time, the elastic first contact electrode 9 on the heat dissipation module limiting groove 7 and the second contact electrode 11 of the heat dissipation module body 3 automatically make contact and conduct electricity. In daily use, after the camera is started, the negative pressure fan in the air outlet 16 runs synchronously, in A negative pressure is formed in the internal circulation air duct 15 of the heat dissipation module body 3, which draws hot air from the component cavity of the camera body 1 into the internal circulation air duct through the air inlet 18. After being filtered by the cold guide plate 19 and the filter 20 at the channel opening of the heat dissipation module body 3, the hot air moves in an S-shape between the staggered cold guide plates 19, making full contact with the cold guide plates that transfer cooling energy to the active cooling device 12 to cool down. The cooled air flows back to the component cavity to achieve heat dissipation. The heat generated by the active cooling device 12 is dissipated through the heat dissipation fins 5 that are evenly distributed at the top. When maintenance is required, the plug plate 14 can be retracted by rotating the adjustment roller 6 in the opposite direction, and the heat dissipation module body 3 can be removed. The filter 20 can be disassembled, cleaned or replaced. After maintenance, it can be reassembled according to the above installation steps and can continue to be used.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat dissipation monitoring camera, comprising a camera body (1), a lens (2) mounted on the front end of the camera body (1), and a component cavity provided inside the camera body (1), characterized in that: The top of the camera body (1) is provided with a heat dissipation module limiting groove (7). The heat dissipation module body (3) is installed inside the heat dissipation module limiting groove (7), and the heat dissipation module body (3) is snapped into the heat dissipation module limiting groove (7). The front and rear ends of the heat dissipation module body (3) are provided with integrally formed mounting heads (4). The two sides of the heat dissipation module body (3) are provided with mounting grooves (8) that snap into the mounting heads (4). One end of the mounting groove (8) is provided with a plug-in groove (10). The inside of the mounting head (4) is provided with a guide groove (13). The guide groove (13) has an internal sliding limit with a plug plate (14) that is plugged into the plug groove (10). The plug plate (14) is extended and retracted by a self-locking transmission component built into the guide groove (13). The heat dissipation module body (3) is provided with an internal circulation air duct (15). After the heat dissipation module body (3) is plugged into the camera body (1), the air outlet (16) and air inlet (18) at the bottom front and rear are connected to the component cavity of the camera body (1). A negative pressure fan (17) is installed inside the air outlet (16).

2. The heat dissipation monitoring camera according to claim 1, characterized in that: The self-locking transmission assembly includes a transmission block (21), which is located at the inner end of the plug plate (14) and is integrally formed with the plug plate (14). The transmission block (21) has a U-shaped opening groove inside, and a rack plate (22) is provided on one side wall of the U-shaped opening groove. A sector gear (27) is provided inside the U-shaped opening groove. The shaft at the bottom of the sector gear (27) is connected to the mounting head (4) through a bearing, and the sector gear (27) meshes with the rack plate (22).

3. A heat dissipation monitoring camera according to claim 2, characterized in that: The inner side of the sector gear (27) is provided with a transmission gear (26) that meshes with it, and the shaft at the bottom of the transmission gear (26) is connected to the mounting head (4) through a bearing. A worm gear (25) is installed on the shaft at the top of the transmission gear (26), and a worm (23) is provided at the inner end of the worm gear (25). The worm (23) is adapted to the worm gear (25). A mounting seat (24) is installed at the front and rear of the worm (23) through a bearing, and the bottom of the mounting seat (24) is fixed to the mounting head (4). An adjusting roller (6) is fixed at one end of the worm (23).

4. A heat dissipation monitoring camera according to claim 1, characterized in that: The heat dissipation module body (3) is provided with an internal circulation air duct (15), and the air outlet (16) and air inlet window (18) are respectively connected to the internal circulation air duct (15). An active cooling device (12) is provided at the upper end of the internal circulation air duct (15). The active cooling device (12) is composed of a metal plate and a semiconductor electronic cooling chip built inside the metal plate, and the cold end of the semiconductor electronic cooling chip contacts the internal circulation air duct (15).

5. A heat dissipation monitoring camera according to claim 4, characterized in that: The internal circulation duct (15) is provided with multiple staggered cooling plates (19). The bottom surface of the cooling plate (19) is in contact with the internal circulation duct (15), and the top of the cooling plate (19) is integrally formed with the metal plate of the active cooling device (12).

6. A heat dissipation monitoring camera according to claim 5, characterized in that: A filter (20) is provided at the channel opening formed by the cooling plate (19) and the heat dissipation module body (3), and the filter (20) is snapped into the cooling plate (19).

7. A heat dissipation monitoring camera according to claim 4, characterized in that: The top of the active cooling device (12) is provided with a plurality of equally spaced heat dissipation fins (5), and the heat dissipation fins (5) are integrally formed with the metal plate of the active cooling device (12).

8. A heat dissipation monitoring camera according to claim 4, characterized in that: The heat dissipation module limiting groove (7) has an elastic first contact electrode (9) on one side wall, and the heat dissipation module body (3) has a second contact electrode (11) on one side wall. After the heat dissipation module body (3) is engaged with the heat dissipation module limiting groove (7), the first contact electrode (9) and the second contact electrode (11) are electrically connected to supply power to the active cooling device (12) and the negative pressure fan (17).

9. A heat dissipation monitoring camera according to claim 2, characterized in that: The top and bottom edges of the outer end of the plug-in plate (14) are chamfered.

10. A heat dissipation monitoring camera according to claim 3, characterized in that: The plane where the vertex of the adjustment roller (6) is located is higher than the upper surface of the heat dissipation module body (3).

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