Waterway channel, water cooling plate and fiber laser
By introducing multiple heat dissipation microchannels into the water channel of the fiber laser, the contact area between the cooling water and the water channel is increased, and the problem of low heat dissipation efficiency of rectangular water channels in the prior art is solved, and a more efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202421983103.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The rectangular waterway heat dissipation efficiency of existing fiber lasers is low and cannot meet the heat dissipation needs of high-power fiber lasers.
A water channel is designed, including the main channel and multiple heat dissipation microchannels. The heat dissipation microchannel is arranged in the same direction and connected to the main channel. The side wall of the main channel is convex to form a heat dissipation microchannel, increasing the contact area between the cooling water and the water channel.
By increasing the contact area between the cooling water and the water channel, the heat dissipation efficiency of the water channel is effectively improved and the heat dissipation needs of high-power fiber lasers are met.
Smart Images
Figure CN222953526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical fiber lasers, in particular to a water channel, a water cooling plate and an optical fiber laser. Background Art
[0002] During the operation of a fiber laser, the pump source, beam combiner, power supply and other devices will generate a large amount of heat. If the laser is not cooled in time, the reliability and service life of the laser will be affected. The heat dissipation capacity of the laser has a significant impact on the laser output power stability and beam quality.
[0003] At present, fiber lasers use water chillers to drive cooling water in the water cooling plate to circulate to remove heat. The water channels in the water cooling plate are mostly rectangular. With the development of high-power fiber lasers, the requirements for laser heat dissipation performance have also increased. However, the small contact area between the cooling water and the rectangular water channel makes the heat dissipation area of the rectangular water channel small and the heat dissipation efficiency low, which cannot meet the heat dissipation requirements of fiber lasers. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a water channel, a water cooling plate and a fiber laser, which solve the technical problem of low heat dissipation efficiency of rectangular water channels.
[0006] (II) Technical solution
[0007] In order to achieve the above-mentioned purpose, the water channel of the utility model includes a main channel and multiple heat dissipation microchannels, the multiple heat dissipation microchannels are arranged in the same direction as the main channel, and the multiple heat dissipation microchannels are connected to the main channel.
[0008] Optionally, the side wall of the main channel is convex inwardly to form the heat dissipation microchannel.
[0009] Optionally, the cross-section of the main channel is rectangular, a plurality of inwardly convex internal tooth structures are arranged on the sides of the rectangle, the internal tooth structures on opposite sides of the rectangle are staggered, and the internal tooth structures extend along the length direction of the main channel to form the heat dissipation microchannel.
[0010] Optionally, the cross section of the heat dissipation microchannel is arc-shaped.
[0011] Furthermore, a water cooling plate is provided, characterized in that the water cooling plate comprises a main body and a plurality of the water channels, and the plurality of the water channels are all arranged in the main body.
[0012] Furthermore, the body is provided with a water inlet and a water outlet;
[0013] The plurality of water channels are arranged side by side and connected end to end in sequence, the water channel at the head end is connected to the water inlet, and the water channel at the tail end is connected to the water outlet, forming a water channel loop.
[0014] Furthermore, the body is provided with a water inlet and a water outlet;
[0015] Multiple waterway channels are arranged side by side, and at least two of the multiple waterway channels are connected in parallel as a group to form a parallel channel, and the multiple parallel channels are connected end to end in sequence; the parallel channel located at the head end is connected to the water inlet, and the parallel channel located at the end is connected to the water outlet to form a waterway loop.
[0016] Furthermore, the body is provided with a plurality of water inlets and a plurality of water outlets;
[0017] A plurality of the water channels are arranged side by side, and at least two of the plurality of water channels are connected end to end in a group in sequence to form a series channel;
[0018] The two ends of one of the series channels are respectively connected to one of the water inlets and one of the water outlets in a one-to-one correspondence to form a waterway loop.
[0019] Furthermore, a fiber laser is provided, characterized in that the water cooling plate is arranged inside the fiber laser.
[0020] Furthermore, the water-cooling plate is provided with a plurality of mounting holes, and the pump source, beam combiner and power supply of the fiber laser are all arranged on the water-cooling plate through the mounting holes.
[0021] (III) Beneficial effects
[0022] The heat dissipation microchannels effectively increase the contact area between the cooling water and the water channel. The more heat dissipation microchannels there are, the larger the contact area between the cooling water and the water channel, thereby increasing the heat dissipation area of the water channel. The heat dissipation rate Q / t is proportional to the heat dissipation area F. Therefore, the heat dissipation microchannels effectively improve the heat dissipation efficiency of the water channel. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a cross-sectional view of the waterway channel of the utility model;
[0024] Figure 2 It is a cross-sectional view of the water cooling plate of the utility model;
[0025] Figure 3 This is a schematic structural diagram of a second embodiment of the water cooling plate of the utility model;
[0026] Figure 4 This is a schematic structural diagram of a third embodiment of the water cooling plate of the utility model;
[0027] Figure 5 It is a partial structural schematic diagram of the fiber laser of the utility model.
[0028] [Description of Reference Numerals]
[0029] 1: water channel; 11: main channel; 12: heat dissipation microchannel;
[0030] 2: water cooling plate; 21: body; 22: water inlet; 23: water outlet; 24: parallel channel; 25: series channel. DETAILED DESCRIPTION
[0031] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 1 The orientation is used as a reference.
[0032] Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0033] Embodiment 1:
[0034] A waterway, such as Figure 1 As shown, the water channel 1 includes a main channel 11 and a plurality of heat dissipation microchannels 12, the plurality of heat dissipation microchannels 12 are arranged in parallel with the main channel 11 in the same direction, and the side walls of the plurality of heat dissipation microchannels 12 are connected with the side walls of the main channel 11. The heat dissipation microchannels 12 effectively increase the contact area between the cooling water and the water channel 1. The more the number of heat dissipation microchannels 12, the larger the contact area between the cooling water and the water channel 1, thereby increasing the heat dissipation area of the water channel 1, and the heat dissipation rate Q / t is proportional to the heat dissipation area F. Therefore, the heat dissipation microchannels 12 effectively improve the heat dissipation efficiency of the water channel 1.
[0035] Specifically, the side wall of the main channel 11 bulges inward to form a heat dissipation microchannel 12, and the main channel 11 and the heat dissipation microchannel 12 are an integrated structure, thereby avoiding the risk of cooling water leakage caused by a long continuous weld between the main channel 11 and the heat dissipation microchannel 12.
[0036] Further, see Figure 1 The cross section of the main channel 11 is rectangular, and a plurality of inwardly convex internal tooth structures are arranged on the sides of the rectangle, and the internal tooth structures on the opposite sides of the rectangle are staggered. Figure 1Only the case where the inner tooth structure is set on a set of opposite sides of the rectangle and the number of the inner tooth structures is 3 is shown. The user can set more numbers and more positions of the inner tooth structure according to the heat dissipation requirements. The utility model does not limit the position and number of the inner tooth structure. The inner tooth structure of each plane extends along the length direction of the main channel 11 to form a plurality of tubular heat dissipation microchannels 12. The heat dissipation microchannels 12 are parallel to the main channel 11. The cooling water flows through the main channel 11 and the heat dissipation microchannels 12 at the same time, increasing the contact area between the cooling water and the waterway channel 1, thereby improving the heat dissipation efficiency. In a preferred embodiment, the cross section of the heat dissipation microchannel 12 is arc-shaped and the structure is stable.
[0037] Embodiment 2:
[0038] A water cooling plate 2, such as Figure 2-4 As shown, the water-cooled plate 2 includes a main body 21 and a plurality of water channels 1, and the plurality of water channels 1 are all arranged in the main body 21. The water-cooled plate 2 is integrally formed using extruded profiles to improve the strength of the water-cooled plate 2 and realize the processing of the internal tooth structure. The size of the water-cooled plate 2 and the specific size of the internal tooth structure can be designed according to actual needs. The spacing between adjacent water channels 1 is 28mm to 82mm. The water channel 1 increases the contact area between the cooling water and the main body 21, thereby increasing the heat dissipation area and improving the heat dissipation efficiency. There is no weld on the surface of the one-piece water-cooled plate 2 to prevent cooling water leakage from damaging other structures on the cooling plate.
[0039] The first embodiment of the water-cooled plate 2, see 2 and 4, is provided with a water inlet 22 and a water outlet 23 on the body 21, and the water inlet 22 and the water outlet 23 are preferably provided on the same side of the body 21. Multiple water channels 1 are arranged side by side and connected end to end in sequence, the water channel 1 at the head end is connected with the water inlet 22, and the water channel 1 at the end is connected with the water outlet 23, forming a water channel loop. The design of the water-cooled plate 2 with a single water inlet 22 and a water outlet 23 can reduce the risk of interface leakage compared to the water-cooled plate 2 with multiple water inlets 22 and water outlets 23, and further prevent cooling water leakage from damaging other structures on the cooling plate.
[0040] The second embodiment of the water cooling plate 2 is shown in FIG. Figure 2 and Figure 3, a water inlet 22 and a water outlet 23 are provided on the body 21, and the water inlet 22 and the water outlet 23 are preferably provided on the same side of the body 21. A plurality of waterway channels 1 are arranged side by side, and the plurality of waterway channels 1 are divided into a plurality of groups in turn, each group includes at least two waterway channels 1, and a plurality of waterway channels 1 in the same group are connected in parallel to form a parallel channel 24, and a plurality of parallel channels 24 are connected end to end in turn. The parallel channel 24 at the head end is connected with the water inlet 22, and the parallel channel 24 at the end is connected with the water outlet 23 to form a waterway loop. Specifically, the cooling water flow rate of the waterway channel 1 in each parallel channel 24 is consistent, and both ends of the waterway channel 1 in each parallel channel 24 are connected through a confluence waterway, and then the plurality of confluence waterways are connected in series in turn to connect the water inlet 22 and the water outlet 23 to form a waterway loop with one inlet and one outlet. The parallel channel 24 can shorten the flow distance of the cooling water entering therein and improve the heat dissipation performance.
[0041] A third embodiment of the cooling plate is shown in Figure 2 and Figure 4 The main body 21 is provided with a plurality of water inlets 22 and a plurality of water outlets 23, and the water inlets 22 and the water outlets 23 are preferably arranged on the same side of the main body 21. A plurality of water channels 1 are arranged side by side, and the plurality of water channels 1 are divided into a plurality of groups in turn, each group includes at least two water channels 1, and the water channels 1 in the same group are connected end to end in turn to form a series channel 25. The two ends of a series channel 25 are respectively connected with a water inlet 22 and a water outlet 23 in a one-to-one correspondence to form a water channel loop. When the heat dissipation demand is low, the series channel 25 corresponding to the position of the heat dissipation component can be selected to reduce the heat dissipation energy consumption; when the heat dissipation demand is high, cooling water is circulated into the plurality of series channels 25 at the same time to improve the heat dissipation efficiency.
[0042] Embodiment three:
[0043] A fiber laser is provided with a water cooling plate 2. The water cooling plate 2 is provided with a plurality of mounting holes, and the pump source, beam combiner and power supply of the fiber laser are all arranged on the water cooling plate 2 through the mounting holes. When the fiber laser is running, the thermal analysis results of the water cooling plate 2 are as follows: Figure 5 As shown, the water-cooling plate 2 structure of the utility model meets the power consumption requirements of the laser. Furthermore, in order to ensure that the water-cooling plate 2 can be installed in the limited space inside the fiber laser, the size of the water-cooling plate 2 is limited. The utility model improves the heat dissipation performance by optimizing the cross-sectional shape of the water channel 1. The water-cooling plate 2 with an internal tooth structure provided in the first and second embodiments can meet the heat dissipation requirements of the laser.
[0044] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 the present invention can be understood according to specific circumstances.
[0046] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.
[0047] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A waterway channel, characterized in that: The water channel (1) comprises a main channel (11) and a plurality of heat dissipation microchannels (12), wherein the plurality of heat dissipation microchannels (12) are arranged in the same direction as the main channel (11), and the plurality of heat dissipation microchannels (12) are connected to the main channel (11); The side wall of the main channel (11) is convex inwardly to form the heat dissipation microchannel (12); The cross section of the main channel (11) is rectangular, and a plurality of inwardly convex internal tooth structures are arranged on the sides of the rectangle. The internal tooth structures on opposite sides of the rectangle are staggered, and the internal tooth structures extend along the length direction of the main channel (11) to form the heat dissipation microchannel (12).
2. The waterway channel according to claim 1, characterized in that: The cross section of the heat dissipation microchannel (12) is arc-shaped.
3. A water cooling plate, characterized in that: The water cooling plate (2) comprises a body (21) and a plurality of water channels (1) according to claim 1 or 2, wherein the plurality of water channels (1) are all arranged in the body (21).
4. The water cooling plate according to claim 3, characterized in that: The body (21) is provided with a water inlet (22) and a water outlet (23); The plurality of waterway channels (1) are arranged side by side and are connected end to end in sequence, the waterway channel (1) at the head end is connected to the water inlet (22), and the waterway channel (1) at the tail end is connected to the water outlet (23), thereby forming a waterway loop.
5. The water cooling plate according to claim 3, characterized in that: The body (21) is provided with a water inlet (22) and a water outlet (23); A plurality of the waterway channels (1) are arranged side by side, and at least two of the plurality of waterway channels (1) are connected in parallel as a group to form a parallel channel (24), and the plurality of parallel channels (24) are connected end to end in sequence; the parallel channel (24) at the head end is connected to the water inlet (22), and the parallel channel (24) at the tail end is connected to the water outlet (23), forming a waterway loop.
6. The water cooling plate according to claim 3, characterized in that: The body (21) is provided with a plurality of water inlets (22) and a plurality of water outlets (23); A plurality of the waterway channels (1) are arranged side by side, and at least two of the plurality of waterway channels (1) are connected end to end in a group to form a series channel (25); The two ends of one of the series channels (25) are respectively connected to one of the water inlets (22) and one of the water outlets (23) in a one-to-one correspondence, forming a waterway loop.
7. A fiber laser, characterized in that: The fiber laser is provided with a water cooling plate (2) as claimed in any one of claims 3 to 6.
8. The fiber laser according to claim 7, characterized in that The water-cooling plate (2) is provided with a plurality of mounting holes, and the pump source, beam combiner and power supply of the optical fiber laser are all arranged on the water-cooling plate (2) through the mounting holes.