Medical cold light source and endoscope system
By employing a first and second cooling fan positioned opposite each other in the endoscope system, combined with heat sink components and multiple heat dissipation vents, the problem of heat accumulation in medical cold light sources is solved, achieving efficient heat dissipation and system stability, and avoiding the risk of burns.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EDAN INSTR
- Filing Date
- 2024-12-20
- Publication Date
- 2026-05-01
AI Technical Summary
The cold light source of medical endoscopes accumulates heat during use, leading to system instability and excessive surface temperature, which poses a risk of burns.
An endoscope system was designed, which uses first and second cooling fans arranged opposite each other to shorten the air path, and combines heat sinks and multiple heat dissipation vents to achieve efficient heat dissipation; the main control board controls the fan switch and speed, and a backup fan is provided to deal with failure.
It effectively reduces the temperature of the cold light source, improves system stability, avoids the risk of burns, and enhances heat dissipation efficiency and reliability.
Smart Images
Figure CN224179703U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, specifically to a medical cold light source and endoscope system. Background Technology
[0002] Endoscopes are indispensable instruments in modern medicine, allowing direct observation of the morphology of internal organs and tissues, which is crucial for doctors in making diagnoses and performing surgeries. Medical endoscope cold light sources provide auxiliary illumination during endoscopic imaging, and are equipped with white LED lights and near-infrared laser LD lights. However, medical endoscope cold light sources consume a relatively high amount of power. If internal heat cannot be dissipated in a timely manner during use, it can easily affect the stability of the cold light source system. Heat buildup can also cause the surface temperature of the casing to exceed limits, resulting in burns to the user. Utility Model Content
[0003] To address the aforementioned technical problems, this application provides a medical cold light source and endoscope system with efficient heat dissipation.
[0004] One embodiment of this application provides a cold light source for an endoscope system, comprising: a housing with an internal mounting cavity, the housing including a front shell and a rear shell with a beam guide interface, the rear shell having a first vent communicating with the mounting cavity; a light source module disposed within the mounting cavity near the beam guide interface; a heat sink disposed on the side of the light source module away from the beam guide interface; a first cooling fan disposed within the mounting cavity and corresponding to the position of the first vent, for drawing outside air into the mounting cavity through the first vent; and a plurality of second cooling fans disposed on the side of the heat sink near the first cooling fan, the plurality of second cooling fans being arranged opposite to the first cooling fan, the second cooling fans being used to draw air from the mounting cavity into the light source module.
[0005] According to one embodiment of this application, the plurality of second cooling fans are arranged side by side along the length direction of the heat sink, and the plurality of second cooling fans are connected in sequence.
[0006] According to one embodiment of this application, the housing further includes a bottom shell and a cover. The bottom shell is connected to the front shell and the rear shell respectively. The front shell, the rear shell, the bottom shell, and the cover form the mounting cavity. The cover includes a first side shell, a second side shell, and a top shell. The first side shell is provided with a second air vent, and the second side shell is provided with a third air vent. Both the second air vent and the third air vent communicate with the mounting cavity to discharge air from the mounting cavity.
[0007] According to one embodiment of this application, the heat sink is provided with a first heat sink, a second heat sink and a third heat sink, all or part of the first heat sink is disposed opposite to the first air vent; all or part of the second heat sink is disposed opposite to the second air vent, and all or part of the third heat sink is disposed opposite to the third air vent.
[0008] According to one embodiment of this application, the medical cold light source further includes a main control board and a power module. The main control board is located on the side of the light source module away from the bottom shell, and the power module is located on the side of the light source module close to the first side shell. The height of the main control board is higher than the height of the light source module and the height of the power module.
[0009] According to one embodiment of this application, the power module is disposed near the second air vent; the side of the second air vent near the bottom shell and the side of the third air vent near the bottom shell are both lower than all or part of the power module.
[0010] According to one embodiment of this application, the side of the second air vent near the top shell and the side of the third air vent near the top shell are both higher than all or part of the main control board.
[0011] According to one embodiment of this application, the cover is a one-piece molded structure.
[0012] According to one embodiment of this application, the second cooling fan includes a main cooling fan and a backup cooling fan, and the main control board is configured to start the backup cooling fan and issue an alarm when a failure of the main cooling fan is detected.
[0013] This application also provides an endoscope system, which includes an endoscope, a camera, a camera host, a display, a beam guide, and the medical cold light source described in the above embodiments. One end of the beam guide is connected to the beam guide interface of the medical cold light source, and the other end is connected to the endoscope to provide a light source. The camera host is used to process and output the images captured by the camera. The display is used to display the images processed and output by the camera host.
[0014] The medical cold light source and endoscope system provided in this application shortens the air path by setting the first and second cooling fans opposite each other, allowing outside air to quickly enter the light source module to remove more heat and achieve efficient heat dissipation. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the endoscope system of this application;
[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the medical cold light source of this application;
[0018] Figure 3 yes Figure 2 A schematic diagram of the medical cold light source from another angle;
[0019] Figure 4 yes Figure 2 The diagram shows an exploded view of the structure of a medical cold light source.
[0020] Figure 5 yes Figure 2 A partial structural schematic diagram of a medical cold light source is shown.
[0021] Figure 6 yes Figure 2 A schematic diagram of the heat sink component for the medical cold light source shown.
[0022] Figure 7 yes Figure 5 A schematic diagram of part of the structure of the medical cold light source shown from another angle;
[0023] Figure 8 yes Figure 5 The diagram shows a partial structure of the medical cold light source from another angle.
[0024] Figure 9 yes Figure 5 The diagram shown is a partial structural representation of a medical cold light source from another angle.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] Medical cold light source 10, housing 110, first air vent 1101, second air vent 1102, third air vent 1103, mounting cavity 1104, spacer 1105, front shell 111, beam guide interface 11101, first side shell 112, second side shell 113, bottom shell 114, top shell 115, rear shell 116, connecting plate 117, cover 118, first connecting part 1181, second connecting part 1182, light source module 120, heat sink 130, first heat sink 1301, second heat sink 1302, third heat sink 1303, first cooling fan 140, second cooling fan 150, first fan 151, second fan 152, third fan 153, main control board 160, power module 170, shielding cover 180, endoscope 20, beam guide 30, camera 40, camera host 50, display 60. Detailed Implementation
[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.
[0028] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.
[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0030] This application provides an endoscope, which is widely used in the medical field. It can be inserted into the human body through natural orifices or small surgical incisions. In use, the endoscope is guided into the organ to be examined, allowing direct visualization of changes in the relevant area.
[0031] like Figure 1 As shown, the endoscope system includes a medical cold light source 10, an endoscope 20, a beam guide 30, a camera 40, a camera host 50, and a display 60. The beam guide 30 can be a long, thin tube. One end of the beam guide 30 is connected to the medical cold light source 10, and the other end is connected to the endoscope 20. The endoscope 20 can be inserted into the human body. The medical cold light source 10 provides illumination light, which is transmitted to the endoscope 20 through the light path within the beam guide 30, thereby illuminating the target area of the subject and facilitating the observation of internal organs through the endoscope 20. The camera 40 is connected to the endoscope 20 and is used to acquire images of the target area. The camera host 50 processes and outputs the images acquired by the camera 40; the display 60 displays the images processed and output by the camera host 50.
[0032] This application embodiment also provides a medical cold light source 10 for use in the endoscope of the above embodiments, such as... Figures 2 to 4 As shown, the medical cold light source 10 includes a housing 110 and a light source module 120. The housing 110 has a mounting cavity 1104 inside, and the light source module 120 is housed in the mounting cavity 1104.
[0033] Specifically, the housing 110 includes a front housing 111, a rear housing 116, a bottom housing 114, and a cover 118. The cover 118 includes a top housing 115, a first side housing 112, and a second side housing 113. The front housing 111 and the rear housing 116 are arranged in parallel and spaced apart. The bottom housing 114 connects one end of the front housing 111 and one end of the rear housing 116 and is perpendicular to the front housing 111 and the rear housing 116. The top housing 115 and the bottom housing 114 are arranged in parallel and spaced apart, and the top housing 115 is connected to the front housing 111. The first side shell 112 and the second side shell 113 are arranged parallel and spaced apart from the end of the bottom shell 114 and the end of the rear shell 116 away from the bottom shell 114, respectively. The first side shell 112 and the second side shell 113 are respectively connected to the two ends of the front shell 111. The four ends of the first side shell 112 are respectively connected to the front shell 111, the bottom shell 114, the rear shell 116 and the top shell 115. The four ends of the second side shell 113 are respectively connected to the front shell 111, the bottom shell 114, the rear shell 116 and the top shell 115. The front shell 111, the rear shell 116, the bottom shell 114 and the cover 118 form an installation cavity 1104. The shell 110 is roughly rectangular in shape.
[0034] In some embodiments, the front shell 111, rear shell 116, bottom shell 114 and cover 118 can be connected and assembled by welding, snap-fit connection, plug-in connection, screw connection or other methods.
[0035] In some embodiments, the cover 118 is an integrally formed structure, with the top shell 115 and the bottom shell 114 disposed opposite to each other, and the first side shell 112 and the second side shell 113 respectively connected to the two ends of the top shell 115 and extending toward the bottom shell 114.
[0036] In some embodiments, the cover 118 is detachably connected to the front shell 111, the rear shell 116, and the bottom shell 114 so that it can be disassembled at any time for maintenance of the medical cold light source 10.
[0037] In some embodiments, such as Figure 4As shown, the cover 118 also includes a first connecting portion 1181 and a second connecting portion 1182. There are two first connecting portions 1181. One first connecting portion 1181 is connected to the end of the first side shell 112 away from the top shell 115 and extends toward the bottom shell 114. The other first connecting portion 1181 is connected to the end of the second side shell 113 away from the top shell 115 and extends toward the bottom shell 114. The second connecting portion 1182 includes a first segment, a second segment, and a third segment connected together. The first segment is connected to the end of the first side shell 112 away from the front shell 111 and extends toward the rear shell 116. The second segment is connected to the end of the top shell 115 away from the front shell 111 and extends toward the rear shell 116. The third segment is connected to the end of the second side shell 113 away from the front shell 111 and extends toward the rear shell 116. The first connecting part 1181 and the bottom shell 114 can be fixedly connected by welding or screwing, and the second connecting part 1182 and the rear shell 116 can be fixedly connected by welding or screwing. By setting the first connecting part 1181 and the second connecting part 1182, the installation marks of the cover 118 and the bottom shell 114 can be hidden on the bottom surface of the medical cold light source 10, and the installation marks of the cover 118 and the rear shell 116 can be hidden on the back surface of the medical cold light source 10, so that there are no installation marks on the front surface of the medical cold light source 10, thus improving the aesthetics of the medical cold light source 10.
[0038] In some embodiments, the front shell 111 and the rear shell 116 are disposed opposite to each other. The front shell 111 is provided with a beam guide interface 11101 for connection with the endoscope 20. The rear shell 116 is provided with a first air vent 1101, the first side shell 112 is provided with a second air vent 1102, and the second side shell 113 is provided with a third air vent 1103. The first air vent 1101, the second air vent 1102, and the third air vent 1103 are all connected to the outside of the mounting cavity 1104 and the shell 110. Air can circulate between the mounting cavity 1104 and the outside through the first air vent 1101, the second air vent 1102, and the third air vent 1103 to remove heat from the mounting cavity 1104.
[0039] In some embodiments, such as Figure 5 As shown, the light source module 120 is fixedly installed on the bottom shell 114. The medical cold light source 10 also includes a connecting plate 117. The connecting plate 117 is located on the side of the rear shell 116 away from the mounting cavity 1104. The connecting plate 117 is provided with a through hole (not shown in the figure). The position of the through hole corresponds to the position of the beam guide interface 11101. The beam guide 30 can be inserted into the through hole and connected to the beam guide interface 11101 so that the illumination light of the medical cold light source 10 can pass into the beam guide 30.
[0040] In some embodiments, the medical cold light source 10 further includes a heat sink 130, a first cooling fan 140, and a plurality of second cooling fans 150. The light source module 120 is disposed within the mounting cavity 1104 near the beam guide interface 11101. The heat sink 130 is disposed on the side of the light source module 120 away from the beam guide interface 11101; the first cooling fan 140 is disposed within the mounting cavity 1104, and the position of the first cooling fan 140 corresponds to the position of the first air vent 1101; the second cooling fans 150 are mounted on the side of the heat sink 130 near the first cooling fan 140, and the second cooling fans 150 and the first cooling fans 140 are arranged opposite each other.
[0041] In some embodiments, the light source module 120 includes a white LED and a near-infrared laser LD, both of which can be mounted on the heat sink 130 to improve heat dissipation. LED, also known as a Light Emitting Diode, is a light-emitting diode light source with advantages such as small size, long lifespan, and high efficiency. LD, or laser diode, is a semiconductor device that converts electrical energy into a laser beam. The white LED and near-infrared laser LD operate at relatively high power, requiring active cooling to dissipate the heat generated during operation, improve the lifespan of the light source, and ensure the stability of the medical cold light source 10 during operation.
[0042] The heat sink 130 of this application is connected to the light source module 120, allowing heat emitted by the light source module 120 to be conducted to the heat sink 130 and then dissipated into the surrounding air. The first cooling fan 140, located in the housing 110, accelerates the airflow between the outside and the mounting cavity 1104, while the second cooling fan 150, located in the heat sink 130, accelerates the airflow between the mounting cavity 1104 and the heat sink 130. Through the cooperation between the first cooling fan 140 and the second cooling fan 150, the airflow velocity inside and around the heat sink 130 can be greatly increased, shortening the airflow path from the first air vent 1101 to the light source module 120. This allows outside air to quickly enter the light source module 120, carrying away more heat and achieving efficient heat dissipation.
[0043] In some embodiments, there are multiple second cooling fans 150, which are arranged side by side along the length of the heat sink 130 and connected sequentially. By providing multiple second cooling fans 150 along the length of the heat sink 130, the influence range of the second cooling fans 150 on the heat sink 130 can be maximized, the airflow rate between the light source module 120 and the mounting cavity 1104 can be accelerated, and the heat dissipation efficiency can be improved.
[0044] In some embodiments, such as Figure 6As shown, the heat sink 130 is provided with a first heat sink 1301, a second heat sink 1302 and a third heat sink 1303. The first heat sink 1301 is located on the side of the heat sink 130 close to the first air vent 1101, the second heat sink 1302 is located on the side of the heat sink 130 close to the second air vent 1102, and the third heat sink 1303 is located on the side of the heat sink 130 close to the third air vent 1103.
[0045] In some embodiments, all or part of the first heat dissipation vent 1301 is disposed opposite to the first air vent 1101, all or part of the second heat dissipation vent 1302 is disposed opposite to the second air vent 1102, and all or part of the third heat dissipation vent 1303 is disposed opposite to the third air vent 1103, so as to reduce the airflow path between the heat dissipation component 130 and the outside world, so that the airflow can quickly carry the heat of the heat dissipation component 130 away from the housing 110.
[0046] In some embodiments, the heat sink 130 can be a heat sink, which is a device for dissipating heat from heat-generating electronic components in electrical appliances. Heat sinks are typically made of aluminum alloy, brass, or bronze and can be plate-shaped, sheet-shaped, or multi-sheet-shaped. For example, the CPU in a computer requires a fairly large heat sink, and heat sinks are used for the power transistors, horizontal output transistors, and power amplifier transistors in a television. Generally, during use, a layer of thermally conductive silicone grease is applied to the contact surface between the electronic component and the heat sink to more effectively conduct the heat generated by the component to the heat sink, which then dissipates it into the surrounding air.
[0047] In some embodiments, a first cooling fan 140 and a second cooling fan 150 are arranged opposite to each other. The first cooling fan 140 is used to draw outside air into the mounting cavity 1104 through a first air vent 1101, and the second cooling fan 150 is used to draw air from the mounting cavity 1104 into the heat sink 130. Relatively cold outside air is drawn into the mounting cavity 1104 by the first cooling fan 140 through the first air vent 1101, and then quickly drawn into the heat sink 130 by the second cooling fan 150. The cold air can enter the heat sink 130 through the first heat vent 1301 and then enter the interior of the light source module 120. After heat exchange inside the light source module 120, hot air is formed. The hot air can be discharged from the mounting cavity 1104 through the second heat vent 1302 and the third heat vent 1303 on both sides of the heat sink 130, and then discharged to the outside of the housing 110 through the second air vent 1102 and the third air vent 1103, forming a heat dissipation airflow path and achieving rapid heat exchange between the outside environment and the light source module 120. Meanwhile, the first air vent 1101 is located on the side of the housing 110 away from the beam guide interface 11101, and the second air vent 1102 and the third air vent 1103 are located on opposite sides of the housing 110, so that the air paths from the first air vent 1101 to the first heat dissipation vent 1301, from the second heat dissipation vent 1302 to the second air vent 1102, and from the third heat dissipation vent 1303 to the third air vent 1103 are unobstructed, effectively improving the airflow rate and further improving the heat dissipation efficiency.
[0048] In some other embodiments, the second cooling fan 150 can also be used to exhaust air from the heat sink 130 to the mounting cavity 1104, and the first cooling fan 140 can also be used to exhaust air from the mounting cavity 1104 to the outside through the first air vent 1101. The heat generated by the light source module 120 is transferred to the heat sink 130. The first cooling fan 140 and the second cooling fan 150 cooperate to exhaust the hot air from the heat sink 130 to the housing 110. The air pressure inside the heat sink 130 decreases, and cold air from the outside can enter the mounting cavity 1104 through the second air vent 1102 and the third air vent 1103 and flow into the heat sink 130, forming a heat dissipation airflow path.
[0049] In some other embodiments, the areas of the second air vent 1102 and the third air vent 1103 are larger than the cross-sectional area of the heat sink 130. If the first air vent 1101 is blocked by foreign objects, the portions of the second air vent 1102 and the third air vent 1103 near the heat sink 130 can serve as air inlets, and the remaining portions of the second air vent 1102 and the third air vent 1103 can serve as air outlets. Cold air can be drawn into the mounting cavity 1104 by the second cooling fan 150 through the portions of the second air vent 1102 and the third air vent 1103 near the heat sink 130, and heat can be discharged from the remaining portions of the second air vent 1102 and the third air vent 1103.
[0050] In some embodiments, such as Figures 7 to 9 As shown, a space 1105 is provided between the first cooling fan 140 and the second cooling fan 150. The space 1105 can enhance the airflow on the side of the first cooling fan 140 near the second cooling fan 150, ensuring that the airflow between the second cooling fan 150 and the first air vent 1101 is unobstructed, thereby improving heat dissipation efficiency. At the same time, the space 1105 can prevent the heat sink 130 from directly contacting the front shell 111, preventing the heat from the heat sink 130 from being directly conducted to the front shell 111, which helps to reduce the temperature of the shell 110, improve the safety of the medical cold light source 10, lower the surface temperature of the shell 110, and prevent burns to the user.
[0051] In some embodiments, the medical cold light source 10 further includes a main control board 160, which is installed on the side of the light source module 120 away from the bottom shell 114. The first cooling fan 140 and the second cooling fan 150 can both communicate with the main control board 160, and the main control board 160 is used to control the first cooling fan 140 and the second cooling fan 150.
[0052] In some embodiments, the first cooling fan 140 and the second cooling fan 150 can communicate with the main control board 160 via a wired connection. In some other embodiments, the first cooling fan 140 and the second cooling fan 150 can communicate with the main control board 160 via a wireless connection such as Bluetooth.
[0053] In some embodiments, the number of second cooling fans 150 is one or more, for example, the number of second cooling fans 150 can be 1, 3, 4, 7, etc.
[0054] Specifically, there are three second cooling fans 150, including a first fan 151, a second fan 152, and a third fan 153. The first fan 151, the second fan 152, and the third fan 153 are all located on the side of the heat sink 130 near the first cooling fan 140, and are arranged along the length of the heat sink 130. Multiple second cooling fans 150 can dissipate heat from different locations on the heat sink 130, further improving the heat dissipation effect.
[0055] In some embodiments, there are multiple second cooling fans 150, each including a main cooling fan and a backup cooling fan. The main control board 160 is configured to start the backup cooling fan and issue an alarm to remind the user of the fault when a main cooling fan failure is detected.
[0056] Optionally, any one of the multiple second cooling fans 150 can be used as a backup cooling fan. The backup cooling fan is not activated under normal circumstances, and is only activated when the main control board 160 detects a failure in any of the main cooling fans. For example, the first fan 151 and the second fan 152 can be used as the main cooling fans, and the third fan 153 can be used as the backup cooling fan. During the operation of the medical cold light source 10, the first fan 151 and the second fan 152 are activated, while the third fan 153 is not activated. When the main control board 160 detects that the first fan 151 has failed to work properly, the third fan 153 is activated, so that the second fan 152 and the third fan 153 work together to ensure the cooling effect and meet the needs of temporary use, so as not to affect the progress of the operation.
[0057] In some other embodiments, the number of backup cooling fans may also be multiple to prevent multiple main cooling fans from failing.
[0058] In some other embodiments, the number of first cooling fans 140 can be one or more, for example, the number of first cooling fans 140 can be 1, 3, 4, 7, etc. When the number of first cooling fans 140 is multiple, the first cooling fans 140 can also include a main cooling fan and a backup cooling fan, and the main cooling fan and the backup cooling fan are controlled by the main control board 160.
[0059] In some embodiments, the medical cold light source 10 further includes a cooling element (not shown) and a temperature sensor (not shown). The cooling element is located inside the light source module 120, and the temperature sensor is installed in the light source module 120. The temperature sensor is used to detect the real-time temperature of the light source module 120. The main control board 160 is configured to control the switching and power of the cooling element, the first cooling fan 140 and the second cooling fan 150 according to the real-time temperature of the light source module 120.
[0060] Specifically, the cooling component can be a thermoelectric cooler. A thermoelectric cooler, also called a semiconductor cooler, is a type of heat pump that utilizes the Peltier effect of semiconductor materials. When direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat is absorbed and released at the two ends of the thermocouple, achieving the purpose of cooling. The cooling component is located inside the light source module 120 to cool the light source module 120. The cooling component can be electrically connected to the main control board 160 so that the main control board 160 can regulate the cooling component.
[0061] Furthermore, the temperature sensor can be a thermocouple sensor, a thermistor sensor, or other sensors. The temperature sensor can be electrically connected to the main control board 160 to convert the real-time temperature of the light source module 120 into an electrical signal and send it to the main control board 160.
[0062] In some embodiments, there may be two temperature sensors, which are installed close to the white LED and near-infrared laser LD lamp of the light source module 120, respectively. The main control board 160 obtains the real-time temperature of the light source module 120 by analyzing the detected temperatures of the temperature sensors near the white LED and near the near-infrared laser LD lamp. For example, the real-time temperature of the light source module 120 may be the maximum value of the detected temperatures of the two temperature sensors.
[0063] In some embodiments, the main control board 160 can control the switching and power of the cooling component according to the real-time temperature of the light source module 120. When the real-time temperature rises, the power of the cooling component is increased to reduce the temperature of the light source module 120; when the real-time temperature drops, the power of the cooling component is reduced to reduce the overall power consumption; when the real-time temperature drops to a certain temperature, such as below 20 degrees Celsius, the cooling component can be turned off.
[0064] In some embodiments, the main control board 160 can control the switching and power of the first cooling fan 140 and the second cooling fan 150 according to the real-time temperature of the light source module 120. When the real-time temperature rises, the power of the first cooling fan 140 and the second cooling fan 150 is increased; when the real-time temperature drops, the power of the first cooling fan 140 and the second cooling fan 150 is reduced; when the real-time temperature drops to a certain temperature, such as below 20 degrees Celsius, some of the first cooling fan 140 and the second cooling fan 150 can be turned off.
[0065] In some other embodiments, the main control board 160 can adjust the output power of the second cooling fan 150 at different locations based on the temperature detected by the temperature sensor near the white LED and the temperature detected by the temperature sensor near the near-infrared laser LD lamp. For example, when only the temperature sensor near the white LED detects a higher temperature, the main control board 160 can increase the power of the second cooling fan 150 near the white LED only, thereby improving heat dissipation while reducing power consumption.
[0066] In some embodiments, the temperature sensor can also be used to detect the ambient temperature, and the main control board 160 can detect the real-time power of the light source module 120. The main control board 160 can also control the switching and power of the first cooling fan 140 and the second cooling fan 150 according to the ambient temperature and the real-time power of the light source module 120. For example, when the ambient temperature is below 20 degrees Celsius and the real-time power of the light source module 120 is less than half of the maximum power, only the first cooling fan 140 can be turned on, and the second cooling fan 150 can be in standby mode. In extreme high-temperature environments, such as when the ambient temperature exceeds 35 degrees Celsius and the real-time power of the light source module 120 is turned on to the maximum power, in order to ensure the normal operation of the medical cold light source 10, both the first cooling fan 140 and the second cooling fan 150 can be turned on and their speeds adjusted to the highest level to achieve the maximum heat dissipation effect.
[0067] Specifically, in a typical operating room, the ambient temperature is generally around 20 degrees Celsius. At this temperature, the speed of the first cooling fan 140 and the second cooling fan 150 can be reduced, and some of the first cooling fan 140 and the second cooling fan 150 can be turned off to reduce noise and power consumption.
[0068] In some embodiments, the first cooling fan 140 is used to draw outside air into the mounting cavity 1104 through the first air vent 1101, the second cooling fan 150 is used to draw air from the mounting cavity 1104 into the heat sink 130, and the height of the main control board 160 is higher than the height of the light source module 120.
[0069] In some embodiments, such as Figure 7 and Figure 9 As shown, the medical cold light source 10 also includes a power module 170, which is installed on the bottom shell 114. The main control board 160 is located on the side of the light source module 120 away from the bottom shell 114. The power module 170 is located on the side of the light source module 120 close to the first side shell 112. The height of the main control board 160 is higher than the height of the light source module 120 and the height of the power module 170.
[0070] In some embodiments, the power module 170 is disposed near the second air vent 1102. The side of the second air vent 1102 near the bottom shell 114 and the side of the third air vent 1103 near the bottom shell 114 are both lower than all or part of the power module 170. All or part of the projection surface of the power module 170 toward the first side shell 112 coincides with the second air vent 1102, and all or part of the projection surface of the power module 170 toward the second side shell 113 coincides with the third air vent 1103, so that the air passing through the power module 170 is not blocked by the first side shell 112 and the second side shell 113, and can be smoothly discharged from the second air vent 1102 and the third air vent 1103.
[0071] In some embodiments, the side of the second air vent 1102 near the top housing 115 and the side of the third air vent 1103 near the top housing 115 are both higher than all or part of the main control board 160. Understandably, hot air, being at a higher temperature, expands in volume, decreases in density, and becomes lighter upon heating, thus causing it to rise. The cold air drawn into the mounting cavity 1104 by the first air vent 1101 can absorb heat from the light source module 120, power module 170, and main control board 160, forming hot air. This hot air then carries the heat away through the second air vent 1102 and the third air vent 1103. As hot air moves within the mounting cavity 1104, its height increases. The side of the second air vent 1102 near the top shell 115 and the side of the third air vent 1103 near the top shell 115 are both higher than all or part of the main control board 160. This ensures that the rising hot air is not blocked by the first side shell 112 or the second side shell 113, facilitating the smooth discharge of hot air from the second air vent 1102 and the third air vent 1103 into the housing 110.
[0072] In some embodiments, all or part of the power module 170 is located between the second heat dissipation vent 1302 and the second air vent 1102. Airflow between the second heat dissipation vent 1302 and the second air vent 1102 can pass through the power module 170 to carry away heat from the power module 170. For example, when air flows from the second heat dissipation vent 1302 to the second air vent 1102 and is exhausted from the second air vent 1102, it can carry the heat from the power module 170 out of the housing 110.
[0073] In some embodiments, the medical cold light source 10 further includes a shielding cover 180, which covers the power module 170 and is connected to the housing 110, which is grounded. The shielding cover 180 is made of a conductive metal alloy, such as copper or aluminum alloy. The shielding cover 180 can prevent external electromagnetic waves from interfering with the power module 170 and prevent the electromagnetic waves generated by the power module 170 from radiating outward. Additionally, the shielding cover 180 can guide the current to the ground through the housing 110 when leakage occurs in the power module 170.
[0074] In some embodiments, the shielding cover 180 is provided with heat dissipation holes, which can be elongated. When air flows between the second heat dissipation port 1302 and the second air vent 1102, it can flow through the heat dissipation holes to carry away the heat from the power module 170.
[0075] The medical cold light source 10 and its endoscope provided in this application shorten the airflow path by setting the first cooling fan 140 and the second cooling fan 150 opposite to each other, allowing outside air to quickly enter the light source module 120 to remove more heat and improve heat dissipation efficiency. By setting the main control board 160 to control the switching and speed of the first cooling fan 140 and the second cooling fan 150, the output of the first cooling fan 140 and the second cooling fan 150 can be adapted to different occasions to achieve noise reduction and improve user experience. By setting a backup cooling fan to prevent failure of the main cooling fan, the reliability of the medical cold light source 10 is improved.
[0076] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.
Claims
1. A medical cold light source for an endoscope system, characterized by comprising: include: The housing has an internal mounting cavity. The housing includes a front shell and a rear shell with a beam guide interface. The rear shell has a first air vent that communicates with the mounting cavity. The light source module is located inside the mounting cavity near the beam guide interface; A heat sink is located on the side of the light source module away from the beam guide interface; A first cooling fan is disposed inside the mounting cavity and corresponds to the position of the first air vent, and is used to draw outside air into the mounting cavity through the first air vent. Multiple second cooling fans are disposed on the side of the heat sink near the first cooling fan. The multiple second cooling fans are disposed opposite to the first cooling fan. The second cooling fans are used to draw air from the mounting cavity into the light source module.
2. The medical cold light source according to claim 1, characterized in that The plurality of second cooling fans are arranged side by side along the length of the heat sink, and the plurality of second cooling fans are connected in sequence.
3. The medical cold light source according to claim 1, characterized in that, The housing further includes a bottom shell and a cover, the bottom shell being connected to the front shell and the rear shell respectively, and the front shell, the rear shell, the bottom shell and the cover forming the mounting cavity; The cover includes a first side shell, a second side shell, and a top shell. The first side shell is provided with a second air vent, and the second side shell is provided with a third air vent. Both the second air vent and the third air vent are connected to the mounting cavity to discharge air from the mounting cavity.
4. The medical cold light source according to claim 3, characterized in that, The heat sink is provided with a first heat sink, a second heat sink and a third heat sink, and all or part of the first heat sink is arranged opposite to the first air vent. All or part of the second heat dissipation vent is arranged opposite to the second air vent, and all or part of the third heat dissipation vent is arranged opposite to the third air vent.
5. The medical cold light source according to claim 4, characterized in that The medical cold light source also includes a main control board and a power module. The main control board is located on the side of the light source module away from the bottom shell, and the power module is located on the side of the light source module close to the first side shell. The height of the main control board is higher than the height of the light source module and the height of the power module.
6. The medical cold light source according to claim 5, characterized in that The power module is positioned close to the second air vent; the side of the second air vent near the bottom shell and the side of the third air vent near the bottom shell are both lower than all or part of the power module.
7. The medical cold light source according to claim 5, wherein The side of the second air vent near the top shell and the side of the third air vent near the top shell are both higher than all or part of the main control board.
8. The medical cold light source according to claim 3, wherein The cover is a one-piece molded structure.
9. The medical cold light source according to claim 4, wherein The medical cold light source also includes a main control board, and the second cooling fan includes a main cooling fan and a backup cooling fan. The main control board is configured to start the backup cooling fan and issue an alarm when the main cooling fan is detected to be faulty.
10. An endoscope system characterized by comprising: The endoscope system includes an endoscope, a camera, a camera host, a display, a beam guide, and a medical cold light source as described in any one of claims 1-9; One end of the beam guide is connected to the beam guide interface of the medical cold light source, and the other end is connected to the endoscope to provide a light source; The camera host is used to process and output the images captured by the camera; The display is used to show the images processed and output by the camera host.