Endoscope light source device

Abstract

The utility model discloses an endoscope light source device, including casing, be located on the LED light emitting module of casing and be located on the light outlet part of casing, the LED light emitting module includes: LED lamp board, LED lamp is located at the front of LED lamp board, collimate lens is located at the front of LED lamp and will the light that emits of LED lamp converts into parallel light beam and emits, heat conduction module is connected with LED lamp board and the back of LED lamp board is fixedly bonded on heat conduction module, the heat dissipation module is fixedly connected with casing, the back of heat conduction module is fixedly bonded on heat dissipation module, the endoscope light source device still includes: optical filter, is located at one side of collimate lens, converging lens is located at the light outlet part place, the parallel light beam is filtered after the optical filter and converges to converging lens. The utility model has good heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to an endoscope, and more specifically, to an endoscope light source device. Background Technology

[0002] An endoscope is a commonly used medical device used to examine the internal structures of organs and to visualize lesions within the human body. An endoscope typically consists of a light source and a probe connected to it. The probe is equipped with a camera, and the light source has a rigid or flexible, slender insertion tube containing a set of optical fibers. The optical fibers extend from the proximal handle through the endoscope body to the probe at its distal viewing tip. The light source provides illumination to the probe via the optical fibers, which in turn illuminates the camera. During use, the probe can be inserted into the body through the mouth or other orifices. The light source illuminates the environment around the camera, allowing the camera to capture clear images of the internal organs, which are then transmitted to a display screen. The light source generally uses LEDs; however, LEDs generate a significant amount of heat during illumination. Current endoscopes have poor heat dissipation capabilities, and if this heat cannot be dissipated effectively, it will not only affect the luminous efficiency of the LEDs but also the light transmission through the optical fibers and their lifespan. Utility Model Content

[0003] To address the technical problem of poor heat dissipation in existing endoscopes, this invention provides an endoscope light source device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is to design an endoscope light source device, including a housing, an LED light-emitting module disposed on the housing, and a light-emitting part disposed on the housing, wherein the LED light-emitting module includes:

[0005] LED light panel;

[0006] LED lights, which are located on the front of the LED light panel;

[0007] A collimating lens is disposed in front of the LED light and converts the light emitted by the LED light into a parallel beam of light.

[0008] A heat-conducting module is connected to the LED light panel, and the back of the LED light panel is tightly attached and fixed to the heat-conducting module.

[0009] A heat dissipation module is fixedly connected to the housing, and the back of the heat conduction module is tightly attached to the heat dissipation module;

[0010] The endoscope light source device also includes:

[0011] A filter is disposed on one side of the collimating lens;

[0012] A converging lens is disposed at the light-emitting part; the parallel light beam is converged to the converging lens after being filtered by the filter.

[0013] The housing includes a rear side plate, a right side plate, and an inclined plate that is obliquely connected between the right end of the rear side plate and the rear end of the right side plate.

[0014] The LED light-emitting module includes three components: a first LED light-emitting module, a second LED light-emitting module, and a third LED light-emitting module. The LED light in the first LED light-emitting module is a first LED light, the LED light in the second LED light-emitting module includes a second LED light and a third LED light, and the LED light in the third LED light-emitting module is a fourth LED light.

[0015] The first LED light-emitting module is fixed on the right side plate, and the light-emitting direction of the first LED is facing to the left;

[0016] The second LED light-emitting module is fixed on the inclined plate, and the light-emitting direction of the second LED is facing forward, while the light-emitting direction of the third LED is facing left.

[0017] The third LED light-emitting module is fixed to the rear side plate, and the fourth LED light emits light in a forward direction;

[0018] The filter includes:

[0019] The first filter is located to the left of the first LED and in front of the second LED.

[0020] The second filter is disposed between the first filter and the converging lens;

[0021] The third filter is located to the left of the third LED and in front of the fourth LED;

[0022] The light emitted by the first LED light passes through the first filter and the second filter and then converges to the converging lens;

[0023] The light emitted by the second LED is emitted by the first filter, then passes through the second filter and is focused onto the converging lens;

[0024] The light emitted by the third LED is reflected by the third filter and then by the second filter before being focused onto the converging lens;

[0025] The light emitted by the fourth LED is passed through the third filter and then reflected by the second filter before being focused onto the converging lens.

[0026] The first filter, the second filter, and the third filter are all tilted to the right and rear.

[0027] The heat dissipation module of the second LED light-emitting module includes:

[0028] The first heat-conducting surface, and the second LED light is disposed on the first heat-conducting surface;

[0029] The second heat-conducting surface is perpendicular to the first heat-conducting surface and one end of the first heat-conducting surface is connected to one end of the second heat-conducting surface. The third LED light is disposed on the second heat-conducting surface.

[0030] The third heat-conducting inclined surface connects the other end of the first heat-conducting surface to the other end of the second heat-conducting surface; the third heat-conducting inclined surface is in close contact with the heat dissipation module of the second LED light-emitting module.

[0031] The first LED is a green light, the second LED is a red light, the third LED is a blue light, and the fourth LED is a UV light.

[0032] The LED light-emitting module also includes:

[0033] A lens mounting base, on which the collimating lens is mounted;

[0034] The connecting posts include at least three, which are disposed on the lens mounting base and fixed between the lens mounting base and the LED light panel.

[0035] The housing is made of black material or the inner surface of the housing is coated with a black coating.

[0036] A layer of thermally conductive copper is provided on the back of the LED light board, and a thermally conductive material is coated between the LED light board and the thermally conductive module. Several heat dissipation fins are arranged at uniform intervals on the back of the heat dissipation module, and the heat dissipation fins are located on the outside of the housing.

[0037] The LED light-emitting module also includes:

[0038] A cooling fan is mounted on the heat dissipation module and positioned directly opposite the heat dissipation fins.

[0039] The endoscope light source device also includes:

[0040] A temperature sensor that detects the temperature of the LED panel;

[0041] A control module is connected to the temperature sensor and the cooling fan. The control module receives the temperature detected by the temperature sensor and controls the cooling fan to turn on and off and the speed of the cooling fan according to the temperature.

[0042] This invention utilizes an LED light-emitting module, a filter, and a converging lens. The LED light-emitting module includes an LED light panel, an LED lamp, a collimating lens, a heat-conducting module, and a heat-dissipating module. The collimating lens converts the light emitted by the LED lamp into a parallel beam, which is then filtered by the filter and converged to the converging lens. The converging lens is located at the light-emitting section, and an optical fiber is installed on the light-emitting section. The light converged to the converging lens is then transmitted through the optical fiber to the probe end for illumination. Because the LED light-emitting module contains both a heat-conducting module and a heat-dissipating module, the heat generated by the LED lamp is quickly conducted to the heat-dissipating module for dissipation, preventing heat accumulation that could affect the LED's luminous efficiency. Furthermore, due to the timely heat dissipation and the distance between the LED light-emitting module and the light-emitting section, the heat emitted by the LED lamp is less likely to be conducted to the optical fiber, avoiding the impact of heat on the optical fiber and extending its lifespan. Attached Figure Description

[0043] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0044] Figure 1 This is a structural diagram of the endoscope light source device of this utility model;

[0045] Figure 2 This is a structural diagram of the endoscope light source device of this utility model after removing the cover plate and cooling fan;

[0046] Figure 3 This is a structural diagram of the LED light-emitting module of the endoscope light source device of this utility model;

[0047] Figure 4 This is a structural diagram of the second LED light-emitting module of the endoscope light source device of this utility model. Detailed Implementation

[0048] The specific embodiments of this utility model are further described below with reference to the accompanying drawings:

[0049] Please see also Figures 1 to 4 The endoscope light source device of this utility model includes a housing 1, a light emitting part 2, an LED light-emitting module 3, a filter 4, and a converging lens 5. Wherein:

[0050] Housing 1 is mainly used to support LED light-emitting modules, filters, and converging lenses. Housing 1 is usually a sealed structure to prevent external light from entering the housing.

[0051] The light-emitting part 2 is disposed on the housing. In this specific embodiment, the light-emitting part is disposed on the left side of the housing. In use, the optical fiber is installed on the light-emitting part.

[0052] The LED light-emitting module 3 is mounted on the housing. The LED light-emitting module includes an LED light board 31, LED lights 32, a collimating lens 33, a heat-conducting module 34, and a heat dissipation module 35. Wherein:

[0053] LED light board 31 is a printed circuit board, which serves to support the LED lights and provide circuit connections. The LED light board can be fixed to the heat-conducting module with screws.

[0054] LED light 32 is located on the front of the LED light panel.

[0055] The collimating lens 33 is disposed on the front of the LED lamp and converts the light emitted by the LED lamp into a parallel beam.

[0056] The heat-conducting module 34 is connected to the LED light panel, and the back of the LED light panel is tightly attached and fixed to the heat-conducting module.

[0057] The heat dissipation module 35 is fixedly connected to the housing, and the back of the heat-conducting module is tightly fitted and fixed to the heat dissipation module. The heat-conducting module quickly conducts the heat generated by the LED to the heat dissipation module for dissipation. In this specific embodiment, the heat dissipation module is located on the outside of the housing. The back of the heat dissipation module 35 is provided with a plurality of heat dissipation fins 351 evenly spaced from each other, and the heat dissipation fins 351 are located on the outside of the housing. The heat dissipation fins increase the heat dissipation area of ​​the heat dissipation module, thereby quickly dissipating the heat generated by the LED. Of course, the heat dissipation module can also be implemented using a VC heat sink. This utility model does not limit the specific structure of the heat dissipation module, as long as it can quickly dissipate the heat generated by the LED.

[0058] To enhance heat dissipation, in this specific embodiment, a layer of thermally conductive copper is provided on the back of the LED light board, and a thermally conductive material, such as thermal grease, is applied between the LED light board and the thermally conductive module. By providing thermally conductive copper on the back of the LED light board and applying a thermally conductive material between the LED light board and the thermally conductive module, the heat dissipation effect can be enhanced.

[0059] Filter 4 is disposed on one side of the collimating lens. Filter 4 is fixed inside the housing. Filter 4 can filter light while also reflecting and refracting it.

[0060] A converging lens 5 is disposed at the light-emitting section; the parallel beam of light is converged to the converging lens after being filtered by the filter. The converging lens is used to focus light into the optical fiber.

[0061] This invention utilizes an LED light-emitting module, a filter, and a converging lens. The LED light-emitting module includes an LED light panel, an LED lamp, a collimating lens, a heat-conducting module, and a heat-dissipating module. The collimating lens converts the light emitted by the LED lamp into a parallel beam, which is then filtered by the filter and converged to the converging lens. The converging lens is located at the light-emitting section, and an optical fiber is installed on the light-emitting section. The light converged to the converging lens is then transmitted through the optical fiber to the probe end for illumination. Because the LED light-emitting module contains both a heat-conducting module and a heat-dissipating module, the heat generated by the LED lamp is quickly conducted to the heat-dissipating module for dissipation, preventing heat accumulation that could affect the LED's luminous efficiency. Furthermore, due to the timely heat dissipation and the distance between the LED light-emitting module and the light-emitting section, the heat emitted by the LED lamp is less likely to be conducted to the optical fiber, avoiding the impact of heat on the optical fiber and extending its lifespan.

[0062] In this specific embodiment, the housing 1 includes a rear side plate 11, a right side plate 12, an inclined plate 13 that is obliquely connected between the right end of the rear side plate and the rear end of the right side plate, a front side plate 14, a left side plate 15, a bottom plate 16, and a cover plate 17. The light-emitting part 2 is disposed on the left side plate.

[0063] The LED light-emitting module 3 includes three modules: a first LED light-emitting module 91, a second LED light-emitting module 92, and a third LED light-emitting module 93. The first LED light-emitting module 91 has a first LED 911, the second LED light-emitting module 92 has a second LED 912 and a third LED 913, and the third LED light-emitting module 93 has a fourth LED 914. Having three LED light-emitting modules further disperses heat, prevents heat accumulation, and enhances heat dissipation.

[0064] The first LED light-emitting module 91 is fixed on the right side plate, and the light-emitting direction of the first LED is facing to the left.

[0065] The second LED light-emitting module 92 is fixed on the inclined plate, and the light-emitting direction of the second LED is facing forward, while the light-emitting direction of the third LED is facing left.

[0066] The third LED light-emitting module 93 is fixed to the rear side plate, and the fourth LED light emits light in a forward direction.

[0067] The filter 4 includes a first filter 41, a second filter 42, and a third filter 43. Wherein:

[0068] The first filter 41 is located to the left of the first LED and in front of the second LED.

[0069] The second filter 42 is disposed between the first filter and the converging lens.

[0070] The third filter 43 is located to the left of the third LED and in front of the fourth LED. The first, second, and third filters can all filter light, removing impurities.

[0071] The light emitted by the first LED light passes through the first filter and the second filter and then converges to the converging lens.

[0072] The light emitted by the second LED is emitted by the first filter, then passes through the second filter and is focused onto the converging lens.

[0073] The light emitted by the third LED is reflected by the third filter and then by the second filter before being focused onto the converging lens.

[0074] The light emitted by the fourth LED is passed through the third filter and then reflected by the second filter before being focused onto the converging lens.

[0075] In this specific embodiment, the first filter, the second filter, and the third filter are all tilted to the right rear.

[0076] In this specific embodiment, the heat-conducting module of the second LED light-emitting module 92 includes a first heat-conducting surface 921, a second heat-conducting surface 922, and a third heat-conducting inclined surface 923. Wherein:

[0077] The first heat-conducting surface 921 is a plane, and the second LED light is disposed on the first heat-conducting surface;

[0078] The second heat-conducting surface 922 is perpendicular to the first heat-conducting surface, and one end of the first heat-conducting surface is connected to one end of the second heat-conducting surface. The third LED light is disposed on the second heat-conducting surface. The second heat-conducting surface is also planar.

[0079] The third heat-conducting inclined surface 923 connects the other end of the first heat-conducting surface to the other end of the second heat-conducting surface; the third heat-conducting inclined surface is in close contact with the heat dissipation module of the second LED light-emitting module. The third heat-conducting surface is also a plane.

[0080] By setting the heat-conducting module of the second LED light-emitting module to have an isosceles right-angled triangle cross section, the second LED and the third LED can share the heat-conducting module and the heat dissipation module, thereby saving space and simplifying the structure of the light source device.

[0081] In this specific embodiment, the first LED is a green light, meaning it emits green light. The second LED is a red light, meaning it emits red light. The third LED is a blue light, meaning it emits blue light. The fourth LED is a UV light.

[0082] In this specific embodiment, the LED light-emitting module 3 further includes a lens mounting base 36 and a connecting post 37. Wherein:

[0083] The lens mounting base 36 is mainly used to mount the collimating lens 33, which is mounted on the lens mounting base.

[0084] The connecting posts 37 include at least three, which are disposed on the lens mounting base and fixed between the lens mounting base and the LED light panel. Positioning holes can be provided on the LED light panel, heat conduction module, or heat dissipation module, and the connecting posts are fixed to the positioning holes by screws or clips. By providing the lens mounting base and connecting posts, the distance between the LED light and the collimating lens can be ensured to be fixed.

[0085] The relative distance between the LED light and each collimating lens should be fixed. This application uses three connecting posts to connect the lens mounting base, thereby ensuring the distance between the LED light and the lens. The relative relationship between the lens and other lenses can also be determined through the positioning holes and guide holes on the lens mounting base.

[0086] In this specific embodiment, in order to reduce the reflection of the housing, the housing is made of black material or the inner surface of the housing is coated with a black coating.

[0087] In this specific embodiment, the LED light-emitting module 3 further includes a cooling fan 38, which is disposed on the heat dissipation module and directly opposite the heat dissipation fins. The cooling fan can dissipate heat from the heat dissipation module more quickly. Of course, if the power of the LED light is not high and the heat generated is not significant, and can be directly dissipated through the heat dissipation module, a cooling fan may not be necessary.

[0088] A power control module is also installed inside the housing. The power control module can be fixed to the housing by a copper stud or similar structure. The power control module is connected to each LED light board and the cooling fan by wires.

[0089] In this specific embodiment, the endoscope light source device further includes a temperature sensor 39 and a control module. Wherein:

[0090] A temperature sensor detects the temperature of the LED panel.

[0091] The control module is connected to the temperature sensor and the cooling fan. The control module receives the temperature detected by the temperature sensor and controls the cooling fan's on / off state and speed based on the temperature. After collecting temperature information, the temperature sensor uploads it to the control module, which then controls the cooling fan's speed to achieve precise temperature control. When the temperature reaches the set on threshold, the control module controls the cooling fan to turn on; when the temperature falls below the set on threshold, the control module controls the cooling fan to turn off. It should be noted that the cooling fan speed has multiple levels. For example, when the temperature exceeds a first set threshold, it corresponds to a first speed; when the temperature rises further and exceeds a second set threshold, it corresponds to a second, higher speed, and so on. A similar design exists for decreasing the temperature.

[0092] This invention utilizes an LED light-emitting module, a filter, and a converging lens. The LED light-emitting module includes an LED light panel, an LED lamp, a collimating lens, a heat-conducting module, and a heat-dissipating module. The collimating lens converts the light emitted by the LED lamp into a parallel beam, which is then filtered by the filter and converged to the converging lens. The converging lens is located at the light-emitting section, and an optical fiber is installed on the light-emitting section. The light converged to the converging lens is then transmitted through the optical fiber to the probe end for illumination. Because the LED light-emitting module contains both a heat-conducting module and a heat-dissipating module, the heat generated by the LED lamp is quickly conducted to the heat-dissipating module for dissipation, preventing heat accumulation that could affect the LED's luminous efficiency. Furthermore, due to the timely heat dissipation and the distance between the LED light-emitting module and the light-emitting section, the heat emitted by the LED lamp is less likely to be conducted to the optical fiber, avoiding the impact of heat on the optical fiber and extending its lifespan.

[0093] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An endoscope light source device, comprising a housing, an LED light-emitting module disposed on the housing, and a light-emitting part disposed on the housing, characterized in that: The LED light-emitting module includes: LED light panel; LED lights, which are located on the front of the LED light panel; A collimating lens is disposed in front of the LED light and converts the light emitted by the LED light into a parallel beam of light. A heat-conducting module is connected to the LED light panel, and the back of the LED light panel is tightly attached and fixed to the heat-conducting module. A heat dissipation module is fixedly connected to the housing, and the back of the heat conduction module is tightly attached to the heat dissipation module; The endoscope light source device also includes: A filter is disposed on one side of the collimating lens; A converging lens is disposed at the light-emitting part; the parallel light beam is converged to the converging lens after being filtered by the filter.

2. The endoscope light source device according to claim 1, characterized in that: The housing includes a rear side plate, a right side plate, and an inclined plate that is obliquely connected between the right end of the rear side plate and the rear end of the right side plate. The LED light-emitting module includes three components: a first LED light-emitting module, a second LED light-emitting module, and a third LED light-emitting module. The LED light in the first LED light-emitting module is a first LED light, the LED light in the second LED light-emitting module includes a second LED light and a third LED light, and the LED light in the third LED light-emitting module is a fourth LED light. The first LED light-emitting module is fixed on the right side plate, and the light-emitting direction of the first LED is facing to the left; The second LED light-emitting module is fixed on the inclined plate, and the light-emitting direction of the second LED is facing forward, while the light-emitting direction of the third LED is facing left. The third LED light-emitting module is fixed to the rear side plate, and the fourth LED light emits light in a forward direction; The filter includes: The first filter is located to the left of the first LED and in front of the second LED. The second filter is disposed between the first filter and the converging lens; The third filter is located to the left of the third LED and in front of the fourth LED; The light emitted by the first LED light passes through the first filter and the second filter and then converges to the converging lens; The light emitted by the second LED is emitted by the first filter, then passes through the second filter and is focused onto the converging lens; The light emitted by the third LED is reflected by the third filter and then by the second filter before being focused onto the converging lens; The light emitted by the fourth LED is passed through the third filter and then reflected by the second filter before being focused onto the converging lens.

3. The endoscope light source device according to claim 2, characterized in that: The first filter, the second filter, and the third filter are all tilted to the right and rear.

4. The endoscope light source device according to claim 2, characterized in that: The heat dissipation module of the second LED light-emitting module includes: The first heat-conducting surface, and the second LED light is disposed on the first heat-conducting surface; The second heat-conducting surface is perpendicular to the first heat-conducting surface and one end of the first heat-conducting surface is connected to one end of the second heat-conducting surface. The third LED light is disposed on the second heat-conducting surface. The third heat-conducting inclined surface connects the other end of the first heat-conducting surface to the other end of the second heat-conducting surface; the third heat-conducting inclined surface is in close contact with the heat dissipation module of the second LED light-emitting module.

5. The endoscope light source device according to claim 4, characterized in that: The first LED is a green light, the second LED is a red light, the third LED is a blue light, and the fourth LED is a UV light.

6. The endoscope light source device according to claim 1, characterized in that: The LED light-emitting module also includes: A lens mounting base, on which the collimating lens is mounted; The connecting posts include at least three, which are disposed on the lens mounting base and fixed between the lens mounting base and the LED light panel.

7. The endoscope light source device according to claim 2, characterized in that: The housing is made of black material or the inner surface of the housing is coated with a black coating.

8. The endoscope light source device according to claim 1, characterized in that: A layer of thermally conductive copper is provided on the back of the LED light board, and a thermally conductive material is coated between the LED light board and the thermally conductive module. Several heat dissipation fins are arranged at uniform intervals on the back of the heat dissipation module, and the heat dissipation fins are located on the outside of the housing.

9. The endoscope light source device according to claim 8, characterized in that: The LED light-emitting module also includes: A cooling fan is mounted on the heat dissipation module and positioned directly opposite the heat dissipation fins.

10. The endoscope light source device according to claim 9, characterized in that: The endoscope light source device also includes: A temperature sensor that detects the temperature of the LED panel; A control module is connected to the temperature sensor and the cooling fan. The control module receives the temperature detected by the temperature sensor and controls the cooling fan to turn on and off and the speed of the cooling fan according to the temperature.

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