Bullet-type surveillance camera
By combining a heat spreader and a radiator in the bullet-type surveillance camera, the problem of low heat dissipation efficiency is solved, achieving efficient heat dissipation and ensuring the normal operation of high-definition image monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHANGHANG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-03
AI Technical Summary
Bullet-type surveillance cameras have low heat dissipation efficiency, making it difficult to meet the heat dissipation requirements of high-definition image monitoring. This causes the monitoring module temperature to rise rapidly, affecting image quality.
A heat spreader is installed on the monitoring module and works with the heat sink to transfer heat through direct contact between components, and the heat sink fins are used to quickly dissipate the heat to the external environment.
It improves heat dissipation efficiency, ensuring that the monitoring module maintains good image quality at high temperatures, and meets the heat dissipation requirements of high-definition image monitoring.
Smart Images

Figure CN224459902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parking equipment technology, and in particular to a bullet-type surveillance camera. Background Technology
[0002] A parking lot is a space used for parking vehicles. Due to security requirements, parking lots need to be equipped with numerous surveillance cameras. Generally, the surveillance cameras in parking lots are mainly bullet cameras, which have the advantages of low cost and can be deployed in large numbers.
[0003] With the development of camera technology, modern bullet surveillance cameras can also achieve high-definition image monitoring. However, this has led to an increase in the heat generated by the monitoring module within these cameras. If the module fails to dissipate heat effectively, its temperature will rise rapidly, resulting in a decrease in image quality. Traditional bullet surveillance cameras primarily rely on natural heat dissipation from their casing. The heat emitted by the monitoring module is first transferred to the air inside the casing, then the air inside the casing transfers the heat back to the casing, and finally, the casing transfers the heat to the external air. This heat dissipation method is inefficient and insufficient to meet cooling requirements. Utility Model Content
[0004] Based on this, the present invention provides a bullet-type surveillance camera, which sets a heat dissipation plate on the monitoring module and uses the heat dissipation plate in conjunction with a heat sink to quickly dissipate the heat generated by the monitoring module during operation into the external air, thereby improving heat dissipation efficiency and meeting heat dissipation requirements.
[0005] A bullet-type surveillance camera, comprising:
[0006] support;
[0007] The bottom shell of the connecting bracket; the front end of the bottom shell is provided with a clearance hole, and the two sides of the bottom shell are respectively provided with mounting grooves;
[0008] A monitoring module is housed on a bottom shell; the monitoring module is located at the front end of the bottom shell; the monitoring module includes: a camera circuit board, a first heat dissipation plate attached to the front of the camera circuit board, and a second heat dissipation plate attached to the back of the camera circuit board; a camera is provided on the front of the camera circuit board, and the camera extends to the outside of the bottom shell through a clearance hole; both the first heat dissipation plate and the second heat dissipation plate are frame-shaped and attached to the outer periphery of the camera circuit board; both sides of the first heat dissipation plate and the second heat dissipation plate are provided with fins;
[0009] A heat sink connected to the bottom shell; two heat sinks are arranged in a corresponding mounting slot; each heat sink includes: a base plate attached to the inner wall of the bottom shell, a mounting plate parallel to the outer side of the base plate, and multiple heat dissipation fins evenly spaced on the outer side of the mounting plate; the base plate has an extension protruding from the mounting slot to the outer side of the bottom shell in the middle; the front end of the base plate has a connecting portion that is close to the front end of the bottom shell, and the connecting portion has a slot for mating the fins; the mounting plate is located on the outer side of the extension, and the inner side of the mounting plate is attached to the outer wall of the bottom shell; and
[0010] A top cover connects to the bottom shell; a cavity structure is formed between the top cover and the bottom shell to accommodate the monitoring module and the heat sink.
[0011] In the aforementioned bullet-type surveillance camera, during operation, the heat generated by the camera circuit board is transferred to the substrate of the heat sink via a first and second heat spreader. Then, the heat is transferred from the substrate to the base shell and mounting plate, while the heat on the mounting plate is transferred to the heat sink fins. Finally, the base shell and heat sink fins dissipate the heat generated by the camera circuit board into the ambient air. The heat generated by the camera circuit board can be quickly dissipated to the outside through the heat sink fins, and the heat transfer process mainly relies on direct contact between components, resulting in high heat transfer efficiency and thus improving heat dissipation efficiency. Through this design, by incorporating heat spreaders on the monitoring module and utilizing the heat sink in conjunction with the heat spreaders, the heat generated by the monitoring module during operation is quickly dissipated into the ambient air, thereby improving heat dissipation efficiency and meeting heat dissipation requirements.
[0012] In one embodiment, the bottom of the base shell is pivotally connected to the top of the bracket, and the bracket is a multi-axis adjustable structure. During equipment debugging, the monitoring angle can be adjusted by changing the posture of the bracket and rotating the base shell to meet different monitoring angle requirements.
[0013] In one embodiment, the bullet-type surveillance camera further includes a wiring harness for connecting the monitoring module; one end of the wiring harness has a first connector for engaging the camera circuit board, and the other end of the wiring harness has a second connector extending to the outside of the casing. The wiring harness facilitates signal transmission between the camera circuit board and external devices, simplifying assembly and maintenance.
[0014] In one embodiment, the monitoring module further includes a transparent cover located on the front of the first heat spreader. The transparent cover is used to protect the camera.
[0015] In one embodiment, a stop portion is provided at the rear end of the substrate, and the stop portion is in close contact with the rear end of the bottom shell. The stop portion not only serves to limit the movement but also increases the contact area between the substrate and the bottom shell, thereby improving heat dissipation efficiency.
[0016] In one embodiment, the bullet-type surveillance camera further includes a rain cover connected to the top cover; the rain cover is located on top of the top cover. The rain cover is used to shield against rain and debris, enhancing the protection of the surveillance module.
[0017] In one embodiment, the bullet-type surveillance camera further includes: a latching component mounted at the rear end of the base housing; a rear baffle at the rear end of the rain cover; and the rear baffle is latched to the rear end of the base housing via the latching component. The rain cover can be fixed to the base housing by the latching mechanism, facilitating installation and removal.
[0018] In one embodiment, the top cover is provided with a first magnetic attraction element, and the rain cover is provided with a second magnetic attraction element that attracts the first magnetic attraction element. This magnetic attraction method allows for both connection between the rain cover and the top cover and facilitates easy assembly and disassembly. Attached Figure Description
[0019] Figure 1 A perspective view of a bullet-type surveillance camera according to an embodiment of this utility model;
[0020] Figure 2 for Figure 1 A stereoscopic view of the bullet surveillance camera from another perspective;
[0021] Figure 3 for Figure 1 The partial view of the bullet surveillance camera shown Figure 1 ;
[0022] Figure 4 for Figure 1 The partial view of the bullet surveillance camera shown Figure 2 ;
[0023] Figure 5 for Figure 1 The disassembly diagram of the bullet-type surveillance camera shown;
[0024] Figure 6 for Figure 5 A three-dimensional view of the bottom housing of the bullet-type surveillance camera shown;
[0025] Figure 7 for Figure 5 A 3D view of the monitoring module in the bullet camera shown;
[0026] Figure 8 for Figure 7 A stereoscopic view of the monitoring module from another perspective;
[0027] Figure 9 for Figure 7 The exploded view of the monitoring module shown;
[0028] Figure 10 for Figure 5A three-dimensional view of the wiring harness in the bullet camera shown;
[0029] Figure 11 for Figure 5 A three-dimensional view of the heat sink in the bullet camera shown;
[0030] Figure 12 for Figure 5 A three-dimensional view of the rain cover in the bullet-type surveillance camera shown.
[0031] The meanings of the labels in the attached diagram are as follows:
[0032] 100-gun-style surveillance camera;
[0033] 10-Staff;
[0034] 20-Bottom shell, 21-Allowing hole, 22-Mounting groove, 23-Pivot hole, 24-Cable routing port;
[0035] 30-Monitoring module, 31-Camera circuit board, 311-Camera, 32-First heat spreader, 321-Wing, 33-Second heat spreader, 34-Transparent cover;
[0036] 40-Heat sink, 41-Baseboard, 411-Extended portion, 412-Connecting portion, 4121-Slot, 413-Stop portion, 42-Mounting plate, 43-Heat sink fins;
[0037] 50 - Top cover; 51 - First magnetic component;
[0038] 60 - Wire harness; 61 - First connector; 62 - Second connector;
[0039] 70-Rain cover, 71-Second magnetic attachment, 72-Rear panel;
[0040] 80-Snap fastener. Detailed Implementation
[0041] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0047] like Figures 1 to 12 As shown, this is a bullet-type surveillance camera 100 according to one embodiment of the present invention.
[0048] like Figures 1 to 5 As shown, the bullet-type surveillance camera 100 includes: a bracket 10, a base shell 20 connected to the bracket 10, a monitoring module 30 housed on the base shell 20, a heat sink 40 connected to the base shell 20, and a top cover 50 connected to the base shell 20. The bracket 10 supports the base shell 20 and, during installation, connects to fixed objects in the parking lot, such as walls or pillars. The base shell 20 and top cover 50 form a housing structure for the monitoring module 30 and the heat sink 40. The monitoring module 30 is used for image monitoring. The heat sink 40 dissipates the heat generated by the monitoring module 30 quickly into the ambient air.
[0049] The following text, combined with Figures 1 to 12 Further explanation is provided regarding the aforementioned bullet-type surveillance camera 100.
[0050] Combination Figure 2 and Figure 5 As shown, in this embodiment, the bottom of the base shell 20 is pivotally connected to the top of the bracket 10, and the bracket 10 is a multi-axis adjustable structure. When debugging the equipment, the monitoring angle can be adjusted by adjusting the posture of the bracket 10 and rotating the base shell 20 to meet the needs of different monitoring angles.
[0051] like Figure 6 As shown, the bottom shell 20 has a clearance hole 21 at its front end and mounting grooves 22 on both sides. Furthermore, in this embodiment, the bottom of the bottom shell 20 has a pivot hole 23 for connecting the bracket 10 and a wiring port 24 for routing the monitoring module 30. In this embodiment, the bottom shell 20 can be a plastic shell or a metal shell, such as an aluminum alloy shell.
[0052] like Figure 3 As shown, the monitoring module 30 is located at the front end of the bottom shell 20. Figures 7 to 9As shown, the monitoring module 30 includes: a camera circuit board 31, a first heat spreader 32 attached to the front of the camera circuit board 31, and a second heat spreader 33 attached to the back of the camera circuit board 31. A camera 311 is located on the front of the camera circuit board 31, and the camera 311 extends to the outside of the base shell 20 via a clearance hole 21. Both the first heat spreader 32 and the second heat spreader 33 are frame-shaped and attached to the outer periphery of the camera circuit board 31. Flanges 321 are provided on both sides of the first heat spreader 32 and the second heat spreader 33. In this embodiment, the first heat spreader 32 and the second heat spreader 33 can also be copper plates or aluminum plates.
[0053] It should be noted that in this solution, if both the first heat spreader 32 and the second heat spreader 33 are made of metal, then both the first heat spreader 32 and the second heat spreader 33 need to avoid the electronic components and conductive lines on the camera circuit board 31 to prevent short circuits.
[0054] Considering that parking lots are open spaces, especially outdoor parking lots, they are exposed to sun and rain. Therefore, in order to better protect the monitoring module 30, such as... Figures 7 to 9 As shown, in this embodiment, the monitoring module 30 may further include a transparent cover 34 located on the front of the first heat spreader 32. The transparent cover 34 is used to protect the camera 311.
[0055] Furthermore, for ease of installation and maintenance, such as Figure 3 and Figure 5 As shown, in this embodiment, the bullet-type surveillance camera 100 may further include a wiring harness 60 for connecting the monitoring module 30. One end of the wiring harness 60 is provided with a first connector 61 that interfaces with the camera circuit board 31 (the camera circuit board 31 has a corresponding port), and the other end of the wiring harness 60 is provided with a second connector 62 extending to the outside of the housing 20. For example, the second connector 62 extends to the outside of the housing 20 via a wiring port 24. The wiring harness 60 is used to realize signal transmission between the camera circuit board 31 and external devices, which facilitates assembly and maintenance.
[0056] Combination Figure 1 and Figure 3 As shown, there are two heat sinks 40, each corresponding to one of the mounting slots 22. Figure 11As shown, the heat sink 40 includes: a base plate 41 attached to the inner wall of the bottom shell 20, a mounting plate 42 parallel to the outer side of the base plate 41, and a plurality of heat dissipation fins 43 evenly spaced on the outer side of the mounting plate 42. The base plate 41 has an extension portion 411 protruding from the mounting groove 22 onto the outer side of the bottom shell 20 at its center. The front end of the base plate 41 has a connecting portion 412 that is tightly attached to the front end of the bottom shell 20, and the connecting portion 412 has a slot 4121 for mating with the fins 321. The mounting plate 42 is located on the outer side of the extension portion 411, and the inner side of the mounting plate 42 is attached to the outer wall of the bottom shell 20. In this embodiment, the heat sink 40 can be a one-piece molded aluminum heat dissipation structure.
[0057] Combination Figures 3 to 11 As shown, in this embodiment, a stop portion 413 is provided at the rear end of the substrate 41, and the stop portion 413 is in close contact with the rear end of the bottom shell 20. The stop portion 413 not only serves to limit the movement, but also increases the contact area between the substrate 41 and the bottom shell 20, thereby improving heat dissipation efficiency.
[0058] like Figure 4 As shown, a cavity structure for accommodating the monitoring module 30 and the heat sink 40 is formed between the top cover 50 and the bottom shell 20.
[0059] like Figures 1 to 5 As shown, in this embodiment, the bullet-type surveillance camera 100 may further include a rain cover 70 connected to the top cover 50, and the rain cover 70 is located on top of the top cover 50. The rain cover 70 is used to shield against rain and debris, thereby enhancing the protection of the monitoring module 30.
[0060] Furthermore, such as Figures 2 to 5 As shown, in this embodiment, the bullet-type surveillance camera 100 further includes a latching member 80 installed at the rear end of the base housing 20. A rear baffle 72 is provided at the rear end of the rain cover 70. The rear baffle 72 is latched to the rear end of the base housing 20 by the latching member 80. The rain cover 70 can be fixed to the base housing 20 by latching, facilitating assembly and disassembly.
[0061] Combination Figure 4 and Figure 12 As shown, in this embodiment, the top cover 50 is provided with a first magnetic 51, and the rain cover 70 is provided with a second magnetic 71 that attracts the first magnetic 51. The magnetic attraction method allows for both connection between the rain cover 70 and the top cover 50 and facilitates easy assembly and disassembly.
[0062] Brief description of working principle:
[0063] For reference Figure 3During operation, the heat generated by the camera circuit board 31 is transferred to the substrate 41 of the heat sink 40 via the first heat spreader 32 and the second heat spreader 33. Then, the heat is transferred from the substrate 41 to the base shell 20 and the mounting plate 42. The heat on the mounting plate 42 is then transferred to the heat dissipation fins 43. Finally, the base shell 20 and the heat dissipation fins 43 dissipate the heat generated by the camera circuit board 31 into the ambient air. The heat generated by the camera circuit board 31 can be quickly dissipated to the outside through the heat dissipation fins 43, and the heat transfer process mainly relies on direct contact between components, resulting in high heat transfer efficiency and thus improving heat dissipation efficiency.
[0064] In addition, the heat sink 40 is fixed to the bottom shell 20 by the mounting slot 22 on the bottom shell 20, and the monitoring module 30 is plugged in between the two heat sinks 40. Therefore, the disassembly and assembly of the monitoring module 30 and the heat sink 40 are relatively simple, which is conducive to the installation of the equipment and subsequent maintenance and cleaning.
[0065] The aforementioned bullet-type surveillance camera 100 has a heat dissipation plate on the monitoring module 30. The heat dissipation plate works in conjunction with the heat sink 40 to quickly dissipate the heat generated by the monitoring module 30 during operation into the external air, thereby improving heat dissipation efficiency and meeting heat dissipation requirements.
[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0067] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A gun type surveillance camera, characterized by, include: support; The bottom shell is connected to the bracket; the front end of the bottom shell is provided with a clearance hole, and the two sides of the bottom shell are respectively provided with mounting grooves; A monitoring module is housed on the bottom shell; the monitoring module is located at the front end of the bottom shell; the monitoring module includes: a camera circuit board, a first heat spreader plate attached to the front of the camera circuit board, and a second heat spreader plate attached to the back of the camera circuit board; a camera is provided on the front of the camera circuit board, and the camera extends to the outside of the bottom shell through the clearance hole; both the first heat spreader plate and the second heat spreader plate are frame-shaped and attached to the outer periphery of the camera circuit board; both sides of the first heat spreader plate and the second heat spreader plate are provided with fins; A heat sink is connected to the bottom shell; the number of heat sinks is two, and they are arranged one-to-one in the mounting slot; the heat sink includes: a base plate attached to the inner side wall of the bottom shell, a mounting plate parallel to the outer side of the base plate, and a plurality of heat dissipation fins evenly spaced on the outer side of the mounting plate; the middle part of the base plate has an extension portion protruding from the mounting slot to the outer side of the bottom shell; the front end of the base plate has a connecting portion tightly attached to the front end of the bottom shell, and the connecting portion has a slot for engaging the fins; the mounting plate is located on the outer side of the extension portion, and the inner side of the mounting plate is attached to the outer side wall of the bottom shell; and A top cover is connected to the bottom shell; a cavity structure for accommodating the monitoring module and the heat sink is formed between the top cover and the bottom shell.
2. The gun-style surveillance video camera of claim 1, wherein, The bottom of the base shell is pivotally connected to the top of the bracket, and the bracket is a multi-axis adjustable structure.
3. Gun surveillance video camera according to claim 1, characterized in that, Also includes: A wiring harness for connecting the monitoring module; one end of the wiring harness is provided with a first connector that engages with the camera circuit board, and the other end of the wiring harness is provided with a second connector that extends to the outside of the bottom housing.
4. The gun-style surveillance video camera of claim 1, wherein, The monitoring module also includes a transparent cover located on the front of the first heat spreader.
5. The gun-style surveillance video camera of claim 1, wherein, The substrate has a stop portion at its rear end, and the stop portion is in close contact with the rear end of the bottom shell.
6. The gun-style surveillance video camera of claim 1, wherein, Also includes: A rain cover connected to the top cover; The rain cover is located on top of the top cover.
7. The bullet-type surveillance camera according to claim 6, characterized in that, Also includes: A fastener is installed at the rear end of the bottom shell; a rear baffle is provided at the tail end of the rain cover; the rear baffle is fastened to the rear end of the bottom shell by the fastener.
8. The gun-style surveillance video camera of claim 6, wherein, The top cover is provided with a first magnetic attraction element, and the rain cover is provided with a second magnetic attraction element that is attracted to the first magnetic attraction element.