Liquid cooling coaxial optical support
By setting up an annular runner in the optical bracket and using liquid refrigerant for temperature control, combined with the design of circumferential clamping, the optical path offset caused by temperature changes in the optical system is solved, and the stable temperature control of the optical components and the efficient operation of the optical system are achieved.
Patent Information
- Application Number
- CN202421163354.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-24
AI Technical Summary
The optical system used in natural environments is not adjusted due to temperature changes, which affects the stability of laser output and optical components, resulting in experimental failures and delays in scientific research results.
A liquid-cooled coaxial optical bracket is designed, by opening an annular flow channel in the clamping chamber bracket, using low-volatilization liquid refrigerant and circulating refrigeration equipment, effective temperature control of the optical element is achieved, and circumferential clamping is performed through the first central hole and the second central hole to improve the contact area and heat conduction efficiency.
Effectively stabilize the temperature of the optical element, improve the stability and thermal conduction efficiency of the optical system, avoid optical path imbalance, and ensure the stability of laser output and the success of the experiment.
Smart Images
Figure CN222545553U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of optical brackets, and in particular relates to a liquid-cooled coaxial optical bracket. Background Art
[0002] In optical experiments and research, people usually need to use optical elements for observation and descriptive records, especially now that optical research is becoming more and more meticulous and the accuracy requirements are getting higher and higher. Therefore, people have higher requirements for the stability of optical elements in experiments. In terms of function, the stability of optical elements in the optical system determines whether the performance of the entire optical system is stable. Especially in the laser system, the stability of its optical elements directly determines the energy, mode, polarization and other parameters of the output laser. Under normal laboratory conditions, the working environment of optical equipment is controllable, and a constant temperature and humidity working mode can be achieved. Under such conditions, the state of optical elements and optical mechanical devices is stable. As long as the debugging and installation are in place, the performance of the optical system is stable. When working in an outdoor natural environment, it is difficult to ensure constant temperature and humidity working conditions. Humidity and cleanliness problems are relatively easy to handle, and can be solved by using a closed local environment; when it comes to temperature problems, it is relatively complicated. Different materials have different mechanical properties for the same temperature change. Elements in contact with each other are prone to stress distortion caused by temperature changes. Most of these changes are at the micron level. In addition, after the stress changes of multiple elements are superimposed, the transmission state of the optical system is destroyed. Especially when the laser system has this kind of optical path misalignment, it may cause a decrease in power and energy, leading to the destruction of the laser mode, or even cause no laser output and damage to optical components. No matter what the reason for the failure of the experiment, it is not only related to the cost of the experiment, but also affects the advancement of the scientific research results of the relevant researchers, and even the competition among countries in the field of optics.
[0003] In the application of solid-state laser technology, various optical components require corresponding fixed mounting brackets, and conventional brackets only play the role of support and positioning. In applications that require temperature control and high-power output, ordinary mirror frames cannot play a control role. Utility Model Content
[0004] In view of the above-mentioned shortcomings, the utility model provides a liquid-cooled coaxial optical bracket, which opens an annular flow channel in the clamping cavity bracket, adopts low-volatile liquid refrigerant and circulating refrigeration equipment, and realizes effective temperature control of the optical element by the optical bracket. The optical element is clamped circumferentially in the form of a first center hole and a second center hole, thereby increasing the contact area between the optical bracket and the optical element, and improving the clamping stability and heat conduction efficiency.
[0005] The utility model is realized by the following technical solutions:
[0006] A liquid-cooled coaxial optical bracket, the optical bracket includes a clamping cavity bracket, a cavity sealing ring body and a circulating refrigeration device. A receiving groove, an annular groove and a first center hole are provided in the clamping cavity bracket, the first center hole is connected to the receiving groove, the optical element is embedded and installed in the first center hole, and a baffle block is provided in the annular groove. The cavity sealing ring body and the clamping cavity bracket are cold-coupled to block the annular groove to form an annular flow channel, the cavity sealing ring body is provided with a liquid inlet located on one side of the baffle block and a liquid outlet located on the other side of the baffle block, the liquid inlet is installed with a liquid inlet joint, and the liquid outlet is installed with a liquid outlet joint. The clamping fixed ring body is connected to the clamping cavity bracket by bolts, and a second center hole is provided in the middle of the clamping fixed ring body, and the second center hole clamps the optical element. The circulating refrigeration device is connected to the liquid inlet joint and the liquid outlet joint through a pipeline, and the circulating refrigeration device can drive the liquid refrigerant to flow from the liquid inlet to the liquid outlet to achieve clamping and temperature control of the optical element.
[0007] Furthermore, assuming that the depth of the receiving groove is H1, the height of the blocking block is H2, and the thickness of the cavity sealing ring is H3, then H1 = H2 + H3. After the colloid sealing ring is installed to the clamping cavity bracket, the outer wall of the cavity sealing ring is flush with the side wall of the clamping cavity bracket.
[0008] Furthermore, arcuate concave surfaces are provided on both sides of the baffle block. In a cross section of the clamping cavity support, the circle where the liquid inlet is located is concentric with the circle where the arcuate concave surface is located, and the circle where the liquid outlet is located is concentric with the circle where the arcuate concave surface is located.
[0009] Furthermore, an annular step is provided in the annular groove, and the height of the annular step is consistent with the height of the blocking block. The annular step plays a supporting role for the cavity sealing ring body, ensuring the stability of the cavity sealing ring body after being installed on the clamping cavity bracket.
[0010] Furthermore, the surfaces of the annular step and the blocking block are both provided with a sealing layer, so as to improve the sealing performance between the cavity sealing ring body and the clamping cavity support.
[0011] Furthermore, the clamping cavity bracket includes a base plate, an inner ring plate and an outer ring plate. A threaded groove is provided on the inner ring plate. A U-shaped groove corresponding to the threaded groove is provided at the edge of the clamping fixing ring body. The fastening bolt passes through the U-shaped groove and is screwed into the threaded groove to realize the installation connection between the clamping fixing ring body and the clamping cavity bracket.
[0012] Furthermore, a heat-conducting column protrudes from the clamping and fixing ring body, the outer diameter of the heat-conducting column is consistent with the inner diameter of the receiving groove, the height of the heat-conducting column is consistent with the depth of the receiving groove, and the second center hole passes through the heat-conducting column. The heat-conducting column is provided to improve the heat exchange efficiency between the optical element and the optical bracket.
[0013] Furthermore, an arc-shaped groove is provided on the clamping and fixing ring body, and the side wall of the liquid inlet joint and the side wall of the liquid outlet joint are both in contact with the arc-shaped groove.
[0014] Furthermore, the liquid refrigerant is electronic fluorinated liquid.
[0015] Furthermore, a connecting flange is provided at the bottom of the clamping cavity bracket.
[0016] Beneficial effects of the utility model:
[0017] An annular flow channel is opened in the clamping cavity bracket, and a low-volatile liquid refrigerant and a circulating refrigeration device are used to achieve effective temperature control of the optical element by the optical bracket. The optical element is clamped circumferentially in the form of a first center hole and a second center hole, which increases the contact area between the optical bracket and the optical element, and improves the clamping stability and heat conduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A connection diagram for illustrating a schematic implementation of a liquid-cooled coaxial optical bracket in the utility model;
[0019] Figure 2 A front view for illustrating a schematic implementation of a liquid-cooled coaxial optical bracket in the utility model;
[0020] Figure 3 A side view for illustrating a schematic implementation of a liquid-cooled coaxial optical bracket in the utility model;
[0021] Figure 4 A cross-sectional view for illustrating a schematic implementation of a liquid-cooled coaxial optical bracket in the utility model;
[0022] Figure 5 A schematic structural diagram for illustrating a schematic implementation of a clamping cavity support in the utility model;
[0023] Figure 6 A structural schematic diagram for illustrating a schematic implementation of a liquid-cooled coaxial optical bracket in the utility model without a clamping cavity bracket.
[0024] List of parts and reference numerals:
[0025] 1. Clamping cavity bracket; 11. Accommodating groove; 12. Annular groove; 13. First center hole; 14. Block block; 15. Annular step; 16. Bottom plate; 17. Inner ring plate; 18. Outer ring plate; 19. Threaded groove; 2. Cavity sealing ring body; 21. Liquid inlet; 22. Liquid outlet; 3. Clamping and fixing ring body; 31. Second center hole; 32. U-shaped groove; 33. Heat conducting column; 34. Arc groove; 4. Liquid inlet joint; 5. Liquid outlet joint. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.
[0028] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of the present invention are not only changes in position, but also include movements such as rotation and rolling where there is no relative change in position but a change in state.
[0029] Finally, it should be noted that when a component is referred to as being "located" or "set on" another component, it can be on the other component or there can be an intermediate component at the same time. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be an intermediate component at the same time.
[0030] like Figures 1 to 6 A liquid-cooled coaxial optical bracket is shown, and the optical bracket includes a clamping cavity bracket 1, a cavity sealing ring body 2, and a circulating refrigeration device. A receiving groove 11, an annular groove 12, and a first center hole 13 are provided in the clamping cavity bracket 1. The first center hole 13 is connected to the receiving groove 11, and the optical element is embedded and installed in the first center hole 13. A baffle block 14 is provided in the annular groove 12. The cavity sealing ring body 2 and the clamping cavity bracket 1 are cold-coupled to block the annular groove 12 to form an annular flow channel. A liquid inlet 21 located on one side of the baffle block 14 and a liquid outlet 22 located on the other side of the baffle block 14 are provided on the cavity sealing ring body 2. A liquid inlet connector 4 is installed on the liquid inlet 21, and a liquid outlet connector 5 is installed on the liquid outlet 22. The clamping fixing ring body 3 is connected to the clamping cavity bracket 1 by bolts. A second center hole 31 is provided in the middle of the clamping fixing ring body 3, and the second center hole 31 clamps the optical element. The circulating refrigeration device is connected to the liquid inlet connector 4 and the liquid outlet connector 5 through pipelines. The circulating refrigeration device can drive the liquid refrigerant to flow from the liquid inlet 21 to the liquid outlet 22 to achieve clamping and temperature control of the optical element.
[0031] In one embodiment, first, the cavity sealing ring body 2 and the clamping cavity bracket 1 are coupled by cold connection to block the annular groove 12 to form an annular flow channel, and then the liquid inlet joint 4 is installed at the liquid inlet 21 of the cavity sealing ring body 2, and the liquid outlet joint 5 is installed at the liquid outlet 22. Then, the liquid inlet joint 4 and the liquid outlet joint 5 are installed to the circulating refrigeration equipment through pipelines, and liquid refrigerant is introduced into the pipelines and the annular flow channel. Then, the optical element is embedded and installed in the first center hole 13, and the clamping and fixing ring body 3 is installed to the clamping cavity bracket 1 through fastening bolts, and the second center hole 31 of the clamping and fixing ring body 3 is sleeved on the optical element to achieve further fixation and clamping of the optical element. Start the optical element, and simultaneously start the circulating refrigeration equipment to adjust the working temperature of the optical element.
[0032] In one embodiment, a temperature regulator is provided in the circulating refrigeration device, and the refrigeration temperature of the circulating refrigeration device can be adjusted according to the working temperature requirements of the specific optical element. It should be noted that the circulating refrigeration device is an existing device, and the specific principle and structure of the circulating refrigeration device will not be described in detail.
[0033] In one embodiment, a connecting flange is provided at the bottom of the clamping cavity bracket, and a mounting hole for mounting to related equipment is opened on the connecting flange to facilitate the expansion of additional optical elements.
[0034] Preferably, assuming that the depth of the receiving groove 11 is H1, the height of the blocking block 14 is H2, and the thickness of the cavity sealing ring body 2 is H3, then H1 = H2 + H3. After the colloid sealing ring body is installed to the clamping cavity bracket 1, the outer wall of the cavity sealing ring body 2 is flush with the side wall of the clamping cavity bracket 1.
[0035] Preferably, arcuate concave surfaces are provided on both sides of the baffle block 14. In a cross section of the clamping cavity bracket 1, the circle where the liquid inlet 21 is located is concentric with the circle where the arcuate concave surface is located, and the circle where the liquid outlet 22 is located is concentric with the circle where the arcuate concave surface is located.
[0036] Preferably, an annular step 15 is provided in the annular groove 12, and the height of the annular step 15 is consistent with the height of the blocking block 14. The annular step 15 is provided to support the cavity sealing ring 2, ensuring the stability of the cavity sealing ring 2 after being installed to the clamping cavity bracket 1.
[0037] Preferably, the surfaces of the annular step 15 and the blocking block 14 are both provided with a sealing layer, so as to improve the sealing performance between the cavity sealing ring body 2 and the clamping cavity support 1 .
[0038] Preferably, the clamping cavity bracket 1 includes a base plate 16, an inner ring plate 17 and an outer ring plate 18, a threaded groove 19 is provided on the inner ring plate 17, and a U-shaped groove 32 corresponding to the threaded groove 19 is provided at the edge of the clamping fixing ring body 3, and the fastening bolt passes through the U-shaped groove 32 and is screwed to the threaded groove 19 to realize the installation connection between the clamping fixing ring body 3 and the clamping cavity bracket 1.
[0039] Preferably, a heat-conducting column 33 is protruded from the clamping and fixing ring body 3, the outer diameter of the heat-conducting column 33 is consistent with the inner diameter of the receiving groove 11, the height of the heat-conducting column 33 is consistent with the depth of the receiving groove 11, and the second center hole 31 passes through the heat-conducting column 33. The heat-conducting column 33 is provided to improve the heat exchange efficiency between the optical element and the optical bracket.
[0040] In one embodiment, according to the specific optical element, the thermally conductive pillars 33 with different thermal conductivity can be selected to meet the thermal conductivity requirements of the optical element.
[0041] Preferably, an arc-shaped groove 34 is further provided on the clamping and fixing ring body 3 , and the side wall of the liquid inlet joint 4 and the side wall of the liquid outlet joint 5 are both in contact with the arc-shaped groove 34 .
[0042] Preferably, the liquid refrigerant is electronic fluorinated liquid, and the thermal conductivity of fluorinated liquid is higher than that of water and mineral oil.
[0043] When the above-mentioned liquid-cooled coaxial optical bracket is used, an annular flow channel is opened in the clamping cavity bracket 1, and a low-volatile liquid refrigerant and a circulating refrigeration device are used to achieve effective temperature control of the optical element by the optical bracket. The optical element is clamped circumferentially in the form of the first center hole 13 and the second center hole 31, thereby increasing the contact area between the optical bracket and the optical element, and improving the clamping stability and heat conduction efficiency.
[0044] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A liquid-cooled coaxial optical bracket, characterized in that: The optical support comprises: A clamping cavity bracket, wherein a receiving groove, an annular groove and a first center hole are provided in the clamping cavity bracket, the first center hole is connected to the receiving groove, the optical element is embedded and installed in the first center hole, and a spacer block is provided in the annular groove; A cavity sealing ring body, wherein the cavity sealing ring body and the clamping cavity bracket are coupled by cold connection to block the annular groove to form an annular flow channel, and the cavity sealing ring body is provided with a liquid inlet located on one side of the baffle block and a liquid outlet located on the other side of the baffle block, the liquid inlet is provided with a liquid inlet joint, and the liquid outlet is provided with a liquid outlet joint; A clamping and fixing ring body, wherein the clamping and fixing ring body is connected to the clamping cavity bracket by bolts, and a second center hole is opened in the middle of the clamping and fixing ring body, and the second center hole clamps the optical element; A circulating refrigeration device, wherein the circulating refrigeration device is connected to the liquid inlet joint and the liquid outlet joint through a pipeline, and the circulating refrigeration device can drive the liquid refrigerant to flow from the liquid inlet to the liquid outlet.
2. A liquid-cooled coaxial optical bracket according to claim 1, characterized in that: Assuming that the depth of the containing groove is H1, the height of the blocking block is H2, and the thickness of the cavity sealing ring is H3, then H1=H2+H3.
3. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: Arc-shaped concave surfaces are provided on both sides of the baffle block. In a cross section of the clamping cavity bracket, the circle where the liquid inlet is located is concentric with the circle where the arc-shaped concave surface is located, and the circle where the liquid outlet is located is concentric with the circle where the arc-shaped concave surface is located.
4. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: An annular step is provided in the annular groove, and the height of the annular step is consistent with the height of the blocking block.
5. The liquid-cooled coaxial optical bracket according to claim 4, characterized in that: The surfaces of the annular step and the blocking block are both provided with sealing layers.
6. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: The clamping cavity bracket includes a bottom plate, an inner ring plate and an outer ring plate. The inner ring plate is provided with a threaded groove. The edge of the clamping fixing ring body is provided with a U-shaped groove corresponding to the threaded groove. The fastening bolt passes through the U-shaped groove and is screwed to the threaded groove.
7. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: A heat-conducting column is also protruded from the clamping and fixing ring body, the outer diameter of the heat-conducting column is consistent with the inner diameter of the accommodating groove, the height of the heat-conducting column is consistent with the depth of the accommodating groove, and the second center hole passes through the heat-conducting column.
8. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: The clamping and fixing ring body is also provided with an arc groove, and the side wall of the liquid inlet joint and the side wall of the liquid outlet joint are both in contact with the arc groove.
9. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: The liquid refrigerant is electronic fluorinated liquid.
10. The liquid-cooled coaxial optical bracket according to claim 1, characterized in that: A connecting flange is provided at the bottom of the clamping cavity bracket.