Light source host and endoscope system

Abstract

The utility model belongs to the technical field of medical equipment, and provides a light source host and an endoscope system.The light source host comprises a shell, a light source module, a heat dissipation assembly, an air duct component and an air guide device; a mounting cavity is formed in the shell, and a first ventilation inlet and a ventilation outlet which communicate with the mounting cavity are formed in the shell; the light source module is mounted in the mounting cavity; the heat dissipation assembly is installed on the light source module. An air guide channel is formed in the air duct component, and the air duct component is connected between the first ventilation inlet and the heat dissipation assembly, so that the air guide channel is communicated between the heat dissipation assembly and the first ventilation inlet; the air guide device is installed at the ventilation outlet. The technical problem that in the prior art, a light source host is poor in heat dissipation performance is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical equipment, and in particular, relates to a light source host and an endoscope system. Background Art

[0002] Endoscope systems are used to observe tissues in body cavities. Usually, endoscope systems are equipped with a light source host. The light source module in the light source host generates a lot of heat during operation. The heat accumulation in the light source host can easily cause the temperature of the device to rise. Excessive temperature will cause the light emitting components in the light source host to decay, color temperature drift, and phosphor aging, and even cause lamp beads to burn out.

[0003] In the related art, cooling is performed only by blowing air between a fan and a light source module, resulting in poor heat dissipation performance of the light source host. Utility Model Content

[0004] The purpose of the present application is to provide a light source host and an endoscope system, aiming to solve the technical problem of poor heat dissipation performance of the light source host in the prior art.

[0005] The first object of the present application is to provide a light source host, comprising:

[0006] A housing is formed with a mounting cavity, and a first ventilation inlet and a ventilation outlet are respectively formed on the housing and communicate with the mounting cavity;

[0007] A light source module is installed in the installation cavity;

[0008] A heat dissipation component is installed on the light source module;

[0009] an air duct component, formed with an air guide channel, the air duct component being connected between the first ventilation inlet and the heat dissipation component so that the air guide channel passes through between the heat dissipation component and the first ventilation inlet; and

[0010] An air guide device is installed at the ventilation outlet.

[0011] In one embodiment, one or more first ventilation inlets are provided, one or more air guiding channels are provided, each of the air guiding channels is connected to the heat dissipation component, and one of the first ventilation inlets is connected to at least one of the air guiding channels.

[0012] In one of the embodiments, the heat dissipation assembly includes a plurality of heat sinks connected to the light source module, one or more air duct components are provided, and one of the air duct components is connected to one or more of the heat sinks.

[0013] In one embodiment, the number of the first ventilation inlets is the same as the number of the air duct components and the number of the radiators, and one of the air duct components is correspondingly connected between one of the first ventilation inlets and one of the radiators.

[0014] In one of the embodiments, the air duct component partially wraps around one or more of the heat sinks.

[0015] In one of the embodiments, the light source host further includes a plurality of heat-conducting structural components, and the heat-conducting structural components are connected between any at least two of the heat sinks.

[0016] In one embodiment, each of the heat sinks includes a heat sink body and a heat conductive substrate connected to the heat sink body, the heat conductive substrate has a thermal conductivity greater than that of the heat sink body; and the heat conductive substrate is connected to the light source module.

[0017] In one of the embodiments, the heat dissipation body includes a plurality of fins arranged in an array.

[0018] In one of the embodiments, each of the heat sinks further includes a heat-conducting layer, and the heat-conducting layer is connected between the heat-conducting substrate and the light source module; the heat-conducting layer is a heat-conducting layer made of a thermally conductive interface material.

[0019] In one embodiment, the light source host further comprises a cover shell connected to the outer surface of the shell, wherein the cover shell covers the first ventilation inlet; a second ventilation inlet is opened on the cover shell, and the second ventilation inlet is communicated with the first ventilation inlet.

[0020] In one of the embodiments, the light source host further includes a dustproof net, which is connected to the housing and covers the first ventilation inlet.

[0021] In one of the embodiments, the air guiding device includes at least one fan, and the air guiding direction of the fan is from the ventilation outlet toward the outside of the installation cavity.

[0022] In one of the embodiments, the wind guiding direction of the wind guiding device is perpendicular to the extension direction of the air duct component.

[0023] In one embodiment, the air duct component and the housing are an integrally formed structure; or

[0024] The air duct component is detachably or fixedly connected to the housing.

[0025] A second object of the present application is to provide an endoscope system, comprising a display device, an image processing device, an endoscope, and a light source host as described in any one of the above items.

[0026] The beneficial effects of the light source host and endoscope system of the present application compared with the prior art are as follows: compared with the prior art, in the light source host and endoscope system, by arranging an air duct component between the heat dissipation component and the first ventilation inlet, the cold air sucked in by the first ventilation inlet can be gathered in the air guide channel as much as possible, and all of it can be transported to the heat dissipation component through the air guide channel, ensuring that the air guide device can gather more cold air and transfer it to the heat dissipation component under the same operating power, ensuring the air blowing volume to the heat dissipation component, so as to improve the heat dissipation efficiency of the heat dissipation component; in addition, the directional air guiding effect of the air guide device enables the high-temperature gas that has undergone heat exchange inside the heat dissipation component to flow toward the ventilation outlet along a directional path, and the air guide device allows the gas to form a directional heat dissipation path in the installation cavity without interfering with the operation of the light source module, so as to improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of a light source host provided in an embodiment of the present application;

[0029] Figure 2 The explosion-proof visual display of a light source host provided in the embodiment of the present application is Figure 1 ;

[0030] Figure 3 The explosion-proof visual display of a light source host provided in the embodiment of the present application is Figure 2 ;

[0031] Figure 4 This is a schematic diagram of a heat dissipation path of a light source host provided in an embodiment of the present application;

[0032] Figure 5 This is a top view of a light source host provided by an embodiment of the present application after the light source module 2 is removed;

[0033] Figure 6 yes Figure 1 Schematic diagram of the structure of the light source module, heat dissipation components and air duct components Figure 1 ;

[0034] Figure 7 yes Figure 1 Schematic diagram of the structure of the light source module, heat dissipation components and air duct components Figure 2 ;

[0035] Figure 8 This is an exploded view of a heat sink in a light source host provided by an embodiment of the present application;

[0036] Fig. 9 This is a schematic diagram of the structure of the assembly of a heat sink, an air duct component and a light-emitting component in a light source host provided by an embodiment of the present application;

[0037] Fig.10 This is a schematic diagram of the structure of a light source host in an upward-looking state provided in an embodiment of the present application. Figure 1 ;

[0038] Fig.11 This is a schematic diagram of the structure of a light source host in an upward-looking state provided in an embodiment of the present application. Figure 2 ;

[0039] Fig.12 yes Fig.10 Exploded view of.

[0040] Explanation of the accompanying drawings: 1. outer shell; 11. installation cavity; 12. first ventilation inlet; 13. ventilation outlet; 14. assembly shell plate; 2. light source module; 21. light emitting component; 3. heat dissipation component; 31. heat sink; 311. fin; 312. connecting substrate; 313. thermal conductive substrate; 314. thermal conductive layer; 4. air duct component; 41. air guiding channel; 5. air guiding device; 6. cover; 61. second ventilation inlet; 7. dustproof net; 8. thermal conductive structure. DETAILED DESCRIPTION

[0041] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0042] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "upward", "vertical", "horizontal", "bottom", "inside", "outside", "inner side", "outer side" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] See also Figure 1-3 As shown, the embodiment of the present application provides a light source host, which includes a shell 1, a light source module 2, a heat dissipation component 3, an air duct component 4 and an air guide device 5; an installation cavity 11 is formed on the shell 1, and a first ventilation inlet 12 and a ventilation outlet 13 connected to the installation cavity 11 are respectively formed on the shell 1; the light source module 2 is installed in the installation cavity 11; the heat dissipation component 3 is installed on the light source module 2; the air duct component 4 is formed with an air guide channel 41, and the air duct component 4 is connected between the first ventilation inlet 12 and the heat dissipation component 3, so that the air guide channel 41 passes through between the heat dissipation component 3 and the first ventilation inlet 12; the air guide device 5 is installed at the ventilation outlet 13; it should be noted that, Figure 1-3 In order to better show the structure in the installation cavity 11, the side panels and the top panel of the housing 1 are omitted in the figure.

[0047] Among them, the light source module 2 is used to provide an illumination light source to the part to be observed. The light source module 2 may include a single light-emitting component 21, or may include multiple light-emitting components 21. The light-emitting component 21 may include multiple light-emitting elements. The light-emitting component 21 will generate heat when lighting. The light-emitting component 21 may use lasers or light-emitting diodes, etc.

[0048] The heat dissipation component 3 is connected to the light source module 2 to absorb the heat from the light source module 2, and the heat dissipation component 3 can dissipate heat to the space around it. The heat dissipation component 3 can adopt a heat sink 31 with a fin-shaped heat dissipation portion, or a heat sink 31 with a columnar heat dissipation portion.

[0049] The shell 1 is used to install the light source module 2, and the light source module 2 and the heat dissipation component 3 are both installed in the installation cavity 11 of the shell 1, and the heat of the light source module 2 absorbed by the heat dissipation component 3 will be dissipated into the installation cavity 11; the first ventilation inlet 12 and the ventilation outlet 13 are both opened on the shell wall of the shell 1, and the opening direction of the first ventilation inlet 12 can be the same as the opening direction of the ventilation outlet 13, or, the opening direction of the first ventilation inlet 12 can be preset with the opening direction of the ventilation outlet 13. The preset angle ranges from 0° to 90°, for example, the preset angle is 0°, 45°, 90°, etc., wherein, when the preset angle is 0°, that is, the first ventilation inlet 12 is arranged in parallel with the ventilation outlet 13, wherein the first ventilation inlet 12 can also be arranged opposite to the ventilation outlet 13.

[0050] Specifically, the housing 1 may include a bottom plate and a top plate that are relatively arranged, and a plurality of side plates connected between the bottom plate and the top plate, wherein the plurality of side plates are sequentially connected end to end, and are jointly arranged with the bottom plate and the top plate to form an installation cavity 11. Among them, the first ventilation inlet 12 may be opened on the bottom plate, and then the ventilation outlet 13 may be opened on any one of the side plates, or the ventilation outlet 13 may be opened on the top plate, or the ventilation outlet 13 may be opened on the bottom plate and arranged to avoid or stagger the first ventilation inlet 12. A plurality of ventilation outlets 13 may be arranged, and the plurality of ventilation outlets 13 may be arranged on different plates of the housing 1, for example, at least one ventilation outlet 13 may be opened in the bottom plate, the top plate, and at least one of the side plates of the housing 1.

[0051] An air guide channel 41 is formed inside the air duct component 4, so the air duct component 4 can adopt a tubular structure or a cylindrical structure, etc. One end of the air duct component 4 is connected to the first ventilation inlet 12 so that the first ventilation inlet 12 is connected to the air guide channel 41, and the other end of the air duct component 4 is connected to the heat dissipation component 3 so that the air guide channel 41 passes through the heat dissipation component 3.

[0052] The air guide channel 41 is used to gather and guide the gas sucked into the first ventilation inlet 12, so that all the gas entering from the first ventilation inlet 12 can be guided by the air guide channel 41 to be transmitted to the heat dissipation component 3, and the flowing gas forms wind to blow heat to the heat dissipation component 3 to dissipate heat.

[0053] The air guide device 5 is installed on the housing 1 and on the ventilation outlet 13. The air guide device 5 is used to make the gas flow from the first ventilation inlet 12 toward the ventilation outlet 13 in a directional manner. Figure 4As shown, it shows the heat dissipation path of the light source host. It can be understood that the air guide device 5 works to discharge gas to the external space outside the installation cavity 11. Therefore, a negative pressure is formed in the installation cavity 11. At this time, the cold air in the external space can enter the air guide channel 41 in the air duct component 4 through the first ventilation inlet 12. The air guide channel 41 forms a gas convergence and transmission channel. All the cold air inhaled from the external space can be transmitted to the heat dissipation component 3 by the air guide channel 41. The heat dissipation component 3 absorbs the heat generated by the operation of the light source module 2. Therefore, the cold air enters the heat dissipation component 3 and exchanges heat with the heat dissipation component 3. The cold air absorbs the heat of the heat dissipation component 3 and cools down the heat dissipation component 3. Due to the directional air guiding effect of the air guide device 5, the high-temperature gas after heat exchange in the heat dissipation component 3 can flow along a directional path to the ventilation outlet 13, and be discharged from the ventilation outlet 13 to the outside of the installation cavity 11, so as to complete the heat dissipation and cooling of the light source module 2.

[0054] In this embodiment, the air guide device 5 may include but is not limited to a blower, a fan, etc. The air guide device 5 is installed away from the light source module 2 and the heat dissipation component 3, which reduces the vibration generated to the light source module 2 and the heat dissipation component 3, is beneficial to protecting the light source module 2 and the heat dissipation component 3, and is beneficial to improving the working stability of the light source module 2.

[0055] When the volume of the heat dissipation component 3 is large and the heat dissipation area is large, multiple air duct components 4 can be provided. Figure 5 As shown, multiple air duct components 4 are connected between the first ventilation inlet 12 and the heat dissipation component 3, or multiple air guide channels 41 are formed inside the air duct component 4, and the inlets of the multiple air guide channels 41 are connected to the first ventilation inlet 12, and the outlets of the multiple air guide channels 41 are connected to different heat dissipation parts of the heat dissipation component 3, so as to increase the ventilation area of ​​the heat dissipation component 3, increase the ventilation volume, and improve the heat dissipation efficiency of the heat dissipation component 3.

[0056] The light source host may also include an image transmission board, an LED drive control board 9, a power supply, an air pump, a display, a light guide component, etc., to match the operation of the endoscope; the LED drive control board 9 can be arranged between the heat dissipation component 3 and the ventilation outlet 13, so that the LED drive control board 9 is arranged on the heat dissipation path.

[0057] In the present embodiment, the light source host sets an air duct component 4 between the heat dissipation component 3 and the first ventilation inlet 12, so that the cold air sucked in by the first ventilation inlet 12 can be gathered in the air guide channel 41 as much as possible, and all of it is transported to the heat dissipation component 3 through the air guide channel 41, ensuring that the air guide device 5 can gather more cold air and transfer it to the heat dissipation component 3 under the same operating power, ensuring the air blowing volume to the heat dissipation component 3, so as to improve the heat dissipation efficiency of the heat dissipation component 3; in addition, the directional air guiding effect of the air guide device 5 enables the high-temperature gas that has undergone heat exchange inside the heat dissipation component 3 to flow toward the ventilation outlet 13 along a directional path, and the air guide device 5 forms a directional heat dissipation path for the gas in the installation cavity 11 without interfering with the operation of the light source module 2, so as to improve the heat exchange efficiency.

[0058] In one embodiment, referring to Figure 3 and Figure 5-7 As shown, one or more first ventilation inlets 12 are provided, and one or more air guiding channels 41 are provided. Each air guiding channel 41 is connected to the heat dissipation component, and a first ventilation inlet 12 is connected to at least one air guiding channel 41 .

[0059] Among them, the air guide channel 41 is provided with one or more, which means that one or more air guide channels 41 are opened on an air duct component 4, the number of air duct components 4 can be one or more, and the air outlet ends of the air guide channels 41 on each air duct component 4 are all connected to the heat dissipation component 3; optionally, the air guide channel 41 is provided with one or more, which means that the number of air duct components 4 is multiple, and an air guide channel 41 is opened on each air duct component 4, then multiple air guide channels 41 are formed, and the air outlet ends of the air guide channels 41 on each air duct component 4 are all connected to the heat dissipation component 3.

[0060] There are one or more first ventilation inlets 12. When there is one first ventilation inlet 12, one first ventilation inlet 12 can be connected to one wind guide channel 41 or multiple wind guide channels 41. One first ventilation inlet 12 can be connected to one air duct component 4 or multiple air duct components 4. When there are multiple first ventilation inlets 12, multiple first ventilation inlets 12 can be connected through one wind guide channel 41 or multiple wind guide channels 41 respectively. Multiple first ventilation inlets 12 can be connected to one air duct component 4 or multiple air duct components 4.

[0061] In this embodiment, the setting of the air guide channel 41 is relatively flexible, and the pairing forms of the air guide channel 41 and the first ventilation inlet 12 are flexible and diverse. However, no matter whether the number of the first ventilation inlets 12 is one or more, and the number of the air guide channel 41 and the air duct component 4 is one or more, the wind passing through the first ventilation inlet 12 can enter the heat dissipation component 3 through the air guide channel 41.

[0062] In one embodiment, referring to Figure 3 and Figure 5-7 As shown, the heat dissipation assembly 3 includes a plurality of heat sinks 31 connected to the light source module 2 , and one or more air duct components 4 are provided, and one air duct component 4 is connected to one or more heat sinks 31 .

[0063] Specifically, the heat dissipation assembly 3 includes multiple heat sinks 31 each connected to the light source module 2. The air duct component 4 may be provided with multiple ones, and each air duct component 4 may have one or more air guide channels 41. The number of first ventilation inlets 12 may be greater than or equal to or less than the number of air duct components 4, so that the first ventilation inlet 12 is connected to the heat sink 31 through at least one air guide channel 41. The number of air duct components 4 may be less than or equal to the number of heat sinks 31. When the number of first ventilation inlets 12, the number of air duct components 4 and the number of heat sinks 31 are the same, one air duct component 4 is correspondingly connected between one first ventilation inlet 12 and one heat sink 31, and one first ventilation inlet 12 is correspondingly connected to one heat sink 31 through one air duct component 4.

[0064] Among them, for the light source module 2, some light source modules 2 only have white light mode, and can only perform routine visual inspections during clinical applications to screen out some relatively obvious lesions. For some early lesions, it is necessary to perform tissue biopsy on the suspected area, which is inefficient. In order to improve the diagnostic efficiency of doctors, a light source host with a special light mode has been developed. The light source host includes narrow-band imaging (NBI), blue light imaging (BLI) and linked imaging (LCI) and other modes. In the special light mode, the vascular morphology and mucosal structure can be clearly displayed, which improves the detection rate of the lesion site. In order to realize the special light imaging mode, multiple monochromatic light-emitting components (or light-emitting components 21) are usually required to couple and output multi-spectrum.

[0065] In the present embodiment, the light source module 2 includes a plurality of light-emitting components 21, so correspondingly, the heat dissipation component 3 includes a plurality of heat sinks 31, the number of heat sinks 31 is the same as the number of light-emitting components 21, and one heat sink 31 is correspondingly connected to one light-emitting component 21. Since the air duct component 4 is used to guide air from the first ventilation inlet 12 to each heat sink 31, the air duct component 4 is also provided with a plurality of air duct components 4, and the number of air duct components 4 needs to be the same as the number of heat sinks 31. The air outlet of the air guide channel 41 of one air duct component 4 is correspondingly connected to one heat sink 31; the first ventilation inlet 12 may be provided with one or more. When there is only one first ventilation inlet 12, the ends of the plurality of air duct components 4 are centrally connected to one first ventilation inlet 12; when there are multiple first ventilation inlets 12, the number of the first ventilation inlets 12 is the same as the number of air duct components 4, and the entrance of the air guide channel 41 of one air duct component 4 is correspondingly connected to one first ventilation inlet 12.

[0066] For example, combined with Figure 3 and Figure 6 As shown, the light source module 2 at least includes a red light component, a green light component, a blue light component and a purple light component, and the red light component, the green light component, the blue light component and the purple light component are all light-emitting components 21, and correspondingly, the heat dissipation component 3 includes a red light radiator, a green light radiator, a blue light radiator and a purple light radiator, and the red light radiator, the green light radiator, the blue light radiator and the purple light radiator are all radiators 31, and correspondingly, the air duct component 4 includes a red light duct component, a green light duct component, a blue light duct component and a purple light duct component, and correspondingly, the first ventilation inlet 12 includes a red light ventilation inlet, a green light ventilation inlet, a blue light ventilation inlet and a purple light ventilation inlet; specifically, the red light radiator is connected to the red light component, the green light radiator is connected to the green light component, and the blue light radiator is connected to the It is connected to the blue light component, and the purple light radiator is connected to the purple light component; the red light air duct component is connected between the red light ventilation inlet and the red light radiator, so that the external cold air flows through the red light ventilation inlet through the red light air duct component to the red light radiator; the green light air duct component is connected between the green light ventilation inlet and the green light radiator, so that the external cold air flows through the green light ventilation inlet through the green light air duct component to the green light radiator; the blue light air duct component is connected between the blue light ventilation inlet and the blue light radiator, so that the external cold air flows through the blue light ventilation inlet through the blue light air duct component to the blue light radiator; the purple light air duct component is connected between the red light ventilation inlet and the purple light radiator, so that the external cold air flows through the purple light ventilation inlet through the purple light air duct component to the purple light radiator.

[0067] In this embodiment, the heat dissipation component 3 is matched with a corresponding number of heat sinks 31 according to the specific structural form of the light source module 2 to achieve targeted heat dissipation of the light source module 2; in addition, the same number of air duct components 4 as the heat sinks 31 are configured, and a corresponding number of first ventilation inlets 12 are opened, so that the external cold air can be respectively and targetedly converged and guided by each air duct component 4 to flow to each heat sink 31, and each heat sink 31 is blown and cooled in a targeted manner; the air guide device 5 can make the high-temperature gas after heat exchange through each heat sink 31 flow to the ventilation outlet 13 along a preset heat dissipation path, and then discharged to the outside of the light source host; by setting up multiple air duct components 4, the light source host can accurately blow and cool each heat sink 31 in a targeted manner, and the heat dissipation is enhanced. At the same time, multiple air guide ducts are ventilated at the same time, which is beneficial to increase the total amount of air entering the installation cavity 11, and thus is beneficial to improving the heat dissipation efficiency. At the same time, the air guide device 5 forms a heat dissipation path for each heat sink 31, which is further beneficial to the efficiency of ventilation and heat dissipation.

[0068] In one embodiment, referring to Figure 6 and Figure 7As shown, the air duct component 4 partially wraps one or more heat sinks 31 .

[0069] Specifically, the duct component 4 adopts a shell plate structure, and the duct component 4 has two open ends, one open end is connected to the first ventilation inlet 12, and the other open end is connected to the radiator 31. The other open end of the duct component 4 can abut against the end of the radiator 31, or the other open end of the duct component 4 can be partially wrapped around the outer surface of the radiator 31.

[0070] In this embodiment, the partial wrapping of the air duct component 4 and the radiator 31 can ensure that the wind passing through the air duct component 4 can pass through the radiator 31 as much as possible, so as to ensure sufficient heat exchange area and improve ventilation efficiency.

[0071] In one embodiment, referring to Figure 6 and Figure 7 As shown, the heat dissipation assembly 3 includes a plurality of heat sinks 31 each connected to the light source module 2, the number of the first ventilation inlets 12 is the same as the number of the air duct components 4, one first ventilation inlet 12 is correspondingly connected to one air duct component 4, the number of air duct components 4 may be less than the number of the heat sinks 31, at least two heat sinks 31 may share one air duct component 4, for example, four heat sinks 31 are provided, and two air duct components 4 may be provided, wherein three heat sinks 31 share one air duct component 4, and another heat sink 31 is independently connected to another air duct component 4, or, every two heat sinks 31 share one air duct component 4; optionally, three air duct components 4 may also be provided, wherein two heat sinks 31 may share one air duct component 4, and the remaining heat sinks 31 may be independently connected to the air duct component 4.

[0072] In this embodiment, the arrangement of the air duct component 4 is more flexible, and can be configured in combination according to the heating power of each light-emitting component in the light source module 2 to improve the balance and efficiency of heat dissipation.

[0073] In one embodiment, referring to Figure 1-3 As shown, each radiator 31 is spaced apart from and arranged opposite to the corresponding first ventilation inlet 12 , and each air duct component 4 is linearly extended and arranged between the corresponding radiator 31 and the corresponding first ventilation inlet 12 .

[0074] Specifically, the outer shell 1 has a shell wall, on which an assembling shell plate 14 for mounting the light source module 2 can be formed. The light source module 2 can be detachably mounted on the assembling shell plate 14, and each radiator 31 can be spaced apart and mounted around the outer periphery of the light source module 2, and one end of each radiator 31 is spaced apart and arranged opposite to the assembling shell plate 14; each first ventilation inlet 12 is opened at a position of the assembling shell plate 14 opposite to each radiator 31, so that each first ventilation inlet 12 can be spaced apart and opposite to each corresponding radiator 31.

[0075] Therefore, it can be understood that each air duct component 4 extends linearly and is connected between the corresponding first ventilation inlet 12 and the corresponding radiator 31; each air duct component 4 can adopt a tube structure or a cylinder structure, and the cross-sectional outer contour shape of the tube structure or the cylinder structure can be circular, elliptical, polygonal, etc.

[0076] The air duct component 4 can be an integrally formed structure with the outer shell 1 , so that the air duct component 4 can be directly prepared when the outer shell 1 is prepared, so as to ensure the reliability of the connection between the air duct component 4 and the outer shell 1 .

[0077] Optionally, the air duct component 4 can be detachably connected or fixedly connected to the outer shell 1. The detachable connection method includes bolt connection, and the fixed connection method includes welding. In the case of bolt connection, in order to ensure the sealing between the air duct component 4 and the inner wall of the outer shell 1, a sealing gasket can be added between the air duct component 4 and the inner wall of the outer shell 1.

[0078] In this embodiment, each radiator 31 is spaced apart from and relatively arranged with respect to the corresponding first ventilation inlet 12 so as to shorten the distance between the radiator 31 and the first ventilation inlet 12 as much as possible and shorten the length of the air duct component 4, which is beneficial to reduce the loss of air volume, improve the wind transmission efficiency, and further improve the heat dissipation efficiency, and is beneficial to save materials and reduce production costs.

[0079] In one embodiment, referring to Figure 7 As shown, the light source host further includes a plurality of heat-conducting structural members 8 , and a heat-conducting structural member 8 is connected between any at least two heat sinks 31 .

[0080] Specifically, the heat-conducting structure 8 can be a heat-conducting pipe or a heat-conducting column. The heat-conducting structure 8 has a high thermal conductivity. The thermal conductivity of the heat-conducting structure 8 is generally 10000~100000 W / (mK). The heat-conducting structure 8 can transfer heat between multiple heat sinks 31 connected to the heat-conducting structure 8 to achieve the purpose of balancing heat and improve the isothermal property between the heat sinks 31.

[0081] A heat-conducting structure 8 is connected between any at least two heat sinks 31, which means that the heat-conducting structure 8 can connect any two heat sinks 31, or the heat-conducting structure 8 can connect any three or any four heat sinks 31, wherein any two heat sinks 31 can be two adjacent heat sinks 31, any three heat sinks 31 can be three adjacent heat sinks 31, any four heat sinks 31 can be four adjacent heat sinks 31, and so on.

[0082] In this embodiment, the setting of the heat-conducting structure 8 can be set according to the power of each light-emitting component 21. The high-power light-emitting component 21 generates more heat, and the low-power light-emitting component 21 generates less heat. The heat-conducting structure 8 can connect the heat sink 31 connected to the high-power light-emitting component 21 and the heat sink 31 connected to the low-power light-emitting component 21, so that the heat generated by the high-power light-emitting component 21 can be absorbed by the heat sink 31 corresponding to the low-power light-emitting component 21, so that the temperature of the entire heat dissipation component 3 is maintained at a uniform level, so that the average junction temperature of each light-emitting component 21 can reach a lower level, which is beneficial to improving the stability of the light output of the light source host and is beneficial to improving the utilization rate of the entire heat dissipation component 3.

[0083] In one embodiment, referring to Figure 8 and Fig. 9 As shown, each heat sink 31 includes a heat dissipation body and a heat-conducting substrate 313 connected to the heat dissipation body, and the heat conductivity rate of the heat-conducting substrate 313 is greater than the heat conductivity rate of the heat dissipation body; the heat-conducting substrate 313 is connected to the light source module 2, specifically, one heat-conducting substrate 313 is connected to the light-emitting component 21.

[0084] Specifically, the thermally conductive substrate 313 can be prepared using a heat spreader, which has a high thermal conductivity of generally 5000 to 10000 W / (mK). The heat spreader has a low diffusion thermal resistance and can quickly and evenly absorb the heat generated by the light source module 2 (or light-emitting component 21) with a higher heat flux density on a larger area of ​​the thermally conductive substrate, thereby increasing the heat transfer speed from the light source module 2 to the heat sink 31, thereby achieving a heat transfer effect higher than that of traditional metal material substrates.

[0085] The heat dissipation body adopts a fin heat sink 31, and the heat dissipation body includes a connecting substrate 312 and a plurality of fins 311 connected in an array to the connecting substrate 312. The thickness of the connecting substrate 312 can be 1mm-3mm. For example, the thickness of the connecting substrate 312 is 1mm, 2mm, 3mm, etc. The heat dissipation body is made of aluminum alloy or copper alloy, and the thermal conductivity of the heat dissipation body is generally between 170 and 400W / (mK); since the fin heat sink 31 takes away heat through the air flow between the fins 311, the faster the air flow rate, the more heat is taken away in the same time.

[0086] The heat dissipation rate of the heat sink 31 has little to do with the thermal conductivity of the material of the fin 311 itself. Even if the thermal conductivity of the fin 311 is very high, due to the principle of convective heat transfer, the heat dissipation from the fin to the air cannot be significantly improved. Based on this, a thermally conductive substrate 313 with a higher thermal conductivity is provided, so that the thermally conductive substrate 313 can absorb the heat generated when the light source module 2 is working, so that the junction temperature of the light source module 2 reaches a lower state and the light emission is more stable. At the same time, materials with lower thermal conductivity can also be used, such as aluminum alloy, which can be processed into the above-mentioned heat sink 31, which is not only light in weight but also helps to save raw material costs.

[0087] In one embodiment, referring to Fig. 9 As shown, each heat sink 31 also includes a heat conductive layer 314, which is connected between the heat conductive substrate 313 and the light source module 2 (specifically, the light emitting component 21); the heat conductive layer 314 is a heat conductive layer prepared by a heat conductive interface material, and the heat conductive layer 314 can be coated on the surface of the heat conductive substrate 313.

[0088] Under ideal conditions, the surface of the thermally conductive substrate 313 of the heat sink 31 and the surface of the light source module 2 are both smooth and flat. However, due to manufacturing and installation tolerances of objects, after the thermally conductive substrate 313 is installed, an uneven air layer appears between the fitting surfaces of the thermally conductive substrate 313 and the light source module 2. Air is a poor conductor of heat and will greatly affect heat transfer. Therefore, in order to improve the heat transfer efficiency of the heat sink 31 of the present application, a thermally conductive layer 314 is coated between the thermally conductive substrate 313 and the connecting substrate 312. The thermally conductive layer 314 is prepared by using a thermally conductive interface material with a preset compression rate.

[0089] In one embodiment, referring to Figure 2 and Figure 3 and Fig.12 As shown, the light source host also includes a cover shell 6 connected to the outer surface of the shell 1 , and the cover shell 6 covers the first ventilation inlet 12 ; a second ventilation inlet 61 is opened on the cover shell 6 , and the second ventilation inlet 61 is communicated with the first ventilation inlet 12 .

[0090] Specifically, the outer shell 1 has an assembly shell plate 14, which can be the bottom plate or top plate or any side plate of the outer shell 1, and the first ventilation inlet 12 is opened on the assembly shell plate 14; the light source host also includes a cover shell 6 covered on the outer surface of the assembly shell plate 14, and a second ventilation inlet 61 is opened on the cover shell 6, and the second ventilation inlet 61 is connected to the first ventilation inlet 12.

[0091] The assembly shell plate 14 is the bottom plate in the above embodiment. The assembly shell plate 14 has an installation surface facing away from the installation cavity 11. The installation surface is the outer wall surface of the housing 1. The first ventilation inlet 12 is arranged through the housing wall.

[0092] The cover shell 6 is installed on the outside of the outer shell 1 and is connected and assembled with the mounting surface. The cover shell 6 can adopt a plate structure. The cover shell 6 can be installed on the outside of the outer shell 1 on the first ventilation inlet 12. There can be a spacing space between the shell wall of the cover shell 6 facing the first ventilation inlet 12 and the first ventilation inlet 12.

[0093] A second ventilation inlet 61 is provided on the shell wall of the cover shell 6, and one or more second ventilation inlets 61 may be provided. When one second ventilation inlet 61 is provided, the opening of the second ventilation inlet 61 may cover the entire first ventilation inlet 12. When multiple first ventilation inlets 12 are provided, the opening area of ​​the second ventilation inlet 61 may cover all the first ventilation inlets 12, so that the gas passing through the second ventilation inlet 61 can be evenly transmitted to each first ventilation inlet 12.

[0094] In this embodiment, by setting a double-layer ventilation inlet, namely the second ventilation inlet 61 and the first ventilation inlet 12, the gas can be guided twice before entering the air guide channel 41; and the incoming air can be filtered once through the cover 6, and larger dust can be deposited once in the interval space between the second ventilation inlet 61 and the first ventilation inlet 12, which is beneficial to reduce the amount of dust entering, and thereby reduce the probability of the problem of excessive junction temperature of the light-emitting module caused by a large amount of dust deposited on the heat dissipation component 3.

[0095] In one embodiment, referring to Figure 2 and Figure 3 and Figure 10-12 As shown, the light source host further includes a dustproof net 7 , which is connected to the housing 1 and covers the first ventilation inlet 12 .

[0096] Specifically, the dustproof net 7 is located outside the housing 1 and connected to the outer wall of the housing 1 , or the dustproof net 7 can also be connected to the cover shell 6 .

[0097] Since the air contains dust, after the dust enters the installation cavity 11, it will accumulate on the surface of the heat dissipation component 3, thereby reducing the heat dissipation efficiency of the heat dissipation component 3, causing the temperature of the light source module 2 to be too high. The life of the light source module 2 will be halved for every 10°C increase in temperature, and the risk of failure will increase. Especially for the light source module 2, if the junction temperature is too high, light decay, color temperature drift, phosphor aging, and even lamp bead burning will occur.

[0098] Therefore, in this embodiment, by setting a dustproof net 7, the dustproof net 7 has mesh-distributed vents, and the dustproof net 7 can be directly covered on the first ventilation inlet 12 to filter the gas before the external gas enters the first ventilation inlet 12, so as to filter out some dust in the air and reduce the junction temperature problem caused by dust.

[0099] Optionally, the dustproof net 7 can also be connected to the cover 6, and then covered on the second ventilation inlet 61, so as to filter the gas before the external gas enters the second ventilation inlet 61, so as to filter out some dust in the air and reduce the junction temperature problem caused by dust.

[0100] In one embodiment, referring to Figure 3 and Figure 10-12 As shown, the air guiding device 5 includes at least one fan, and the air guiding direction of the fan is from the ventilation outlet 13 toward the outside of the installation cavity 11.

[0101] Specifically, the air guide direction of the fan points from the ventilation outlet 13 toward the outside of the installation cavity 11, and the fan blows air toward the outside of the installation cavity 11 to form a negative pressure in the installation cavity 11. The external cold air can enter the installation cavity 11 through the first ventilation inlet 12 and then be discharged from the ventilation outlet 13, forming a preset heat dissipation path to improve the heat dissipation efficiency.

[0102] The air guiding direction of the air guiding device 5 is perpendicular to the extension direction of the air duct component 4, wherein vertical includes but is not limited to 90° vertical. That is to say, the air guiding direction of the fan can be kept perpendicular to the air inlet direction of the first ventilation inlet 12 within a certain error range, and the error range can be ±5°. The heat dissipation path of the gas after entering the installation cavity 11 from the first ventilation inlet 12 is in a right-angle bend, and is finally discharged from the ventilation outlet 13.

[0103] Optionally, the air guide direction of the fan can also be the same as the air inlet direction of the first ventilation inlet 12, that is, the fan and the first ventilation inlet 12 are arranged relative to each other, that is, the fan and the first ventilation inlet 12 are arranged relative to each other, the heat dissipation component 3 is located between the fan and the first ventilation inlet 12, and the heat dissipation path of the gas after entering the installation cavity 11 from the first ventilation inlet 12 is linear, and finally discharged from the ventilation outlet 13.

[0104] An embodiment of the present application further provides an endoscope system, which includes a display device, an image processing device, an endoscope, and the light source host in the above embodiment.

[0105] In this embodiment, the endoscope system is a medical imaging device system that can enter the human body through a natural cavity or incision to observe, diagnose and treat the tissue morphology and lesions of the digestive tract or internal organs in the human body; this endoscope system is configured with the light source host in the above embodiment to achieve higher heat dissipation and heat exchange efficiency, so as to improve the working stability and service life of the endoscope system. For details, please refer to the description of the light source host in the above embodiment, which will not be repeated here.

[0106] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A light source host, characterized in that: include: A housing (1) is formed with a mounting cavity (11), and a first ventilation inlet (12) and a ventilation outlet (13) which are in communication with the mounting cavity (11) are respectively formed on the housing (1); A light source module (2) is installed in the installation cavity (11); A heat dissipation component (3) mounted on the light source module (2); an air duct component (4) having an air guide channel (41), the air duct component (4) being connected between the first ventilation inlet (12) and the heat dissipation component (3), so that the air guide channel (41) passes through between the heat dissipation component (3) and the first ventilation inlet (12); and An air guide device (5) is installed at the ventilation outlet (13).

2. The light source host according to claim 1, characterized in that: One or more first ventilation inlets (12) are provided, and one or more air guiding channels (41) are provided. Each of the air guiding channels (41) is connected to the heat dissipation component (3), and one of the first ventilation inlets (12) is connected to at least one of the air guiding channels (41).

3. The light source host according to claim 1 or 2, characterized in that: The heat dissipation assembly (3) comprises a plurality of heat sinks (31) each connected to the light source module (2), and one or more air duct components (4) are provided, and one of the air duct components (4) is in communication with one or more of the heat sinks (31).

4. The light source host according to claim 3, characterized in that: The number of the first ventilation inlets (12) is the same as the number of the air duct components (4) and the number of the radiators (31), and one of the air duct components (4) is correspondingly connected between one of the first ventilation inlets (12) and one of the radiators (31).

5. The light source host according to claim 3, characterized in that: The air duct component (4) partially wraps one or more radiators (31).

6. The light source host according to claim 3, characterized in that: The light source host also includes a plurality of heat-conducting structures (8), and the heat-conducting structures (8) are connected between any at least two of the heat sinks (31).

7. The light source host according to claim 3, characterized in that: Each of the heat sinks (31) comprises a heat sink body and a heat-conducting substrate (313) connected to the heat sink body, and the heat-conducting rate of the heat-conducting substrate (313) is greater than the heat-conducting rate of the heat sink body; The heat-conducting substrate (313) is connected to the light source module (2).

8. The light source host according to claim 7, characterized in that: The heat dissipation body comprises a plurality of fins (311) arranged in an array.

9. The light source host according to claim 7, characterized in that: Each of the heat sinks (31) further comprises a heat-conducting layer (314), wherein the heat-conducting layer (314) is connected between the heat-conducting substrate (313) and the light source module (2); the heat-conducting layer (314) is a heat-conducting layer (314) made of a heat-conducting interface material.

10. The light source host according to claim 1 or 2, characterized in that: The light source host also includes a cover shell (6) connected to the outer surface of the shell (1), and the cover shell (6) covers the first ventilation inlet (12); a second ventilation inlet (61) is opened on the cover shell (6), and the second ventilation inlet (61) is connected to the first ventilation inlet (12).

11. An endoscope system, characterized in that: It comprises a display device, an image processing device, an endoscope and a light source host as described in any one of claims 1 to 10.

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