Light mixing device and light source module

Abstract

The utility model relates to the technical field of heat dissipation of photoelectric devices, and provides a light mixing device and a light source module, the light mixing device comprises a light mixing shell, the light mixing shell is provided with a light mixing cavity and a heat dissipation cavity, the light mixing cavity penetrates through the light mixing shell along the length direction, the heat dissipation cavity is arranged around the periphery of the light mixing cavity, and the heat dissipation cavity is provided with a cooling medium inlet and a cooling medium outlet. A blocking piece and a plurality of partition pieces are arranged in the heat dissipation cavity, the partition pieces divide a plurality of heat dissipation channels communicating with the cooling medium inlet and the cooling medium outlet, and the blocking piece seals the heat dissipation channels. Wherein the separation blade is provided with a notch, or a notch is formed between the separation blade and the cavity wall of the heat dissipation cavity. Wherein the plurality of heat dissipation channels increase the flow area of a cooling medium in the heat dissipation cavity, and the separation blades limit the flow speed of the cooling medium and prolong the heat exchange time of the cooling medium in the heat dissipation cavity, so that sufficient heat exchange is carried out between the heat dissipation cavity and the light mixing cavity surrounded by the heat dissipation cavity, and high light emitting power or high incident energy can be matched.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of optoelectronic devices, in particular to a light mixing device and a light source module. Background Art

[0002] In the field of consumer electronics, as the power consumption of light sources (such as photography lights) increases, the light output power increases. When the light source hits the inner wall of the mixing tube, the temperature of the mixing tube will be too high. The excessive temperature will reduce the reliability of the light source, causing heat injuries to the user. At the same time, the materials in the electronic products will also melt or be damaged due to the temperature. Therefore, the heat dissipation effect of the current mixing tube needs to be improved. Utility Model Content

[0003] The utility model aims to provide a light mixing device and a light source module, aiming to solve the technical problem that the heat dissipation effect of the existing light mixing tube needs to be improved.

[0004] In a first aspect, the present application provides a light mixing device, the light mixing device comprising:

[0005] A light-mixing shell, wherein the light-mixing shell has a length direction, the light-mixing shell has a light-mixing cavity and a heat dissipation cavity, the light-mixing cavity passes through the light-mixing shell along the length direction, the heat dissipation cavity is arranged around the outer circumference of the light-mixing cavity, the heat dissipation cavity has a cooling medium inlet and a cooling medium outlet, a baffle and a plurality of partitions are arranged in the heat dissipation cavity, a plurality of the partitions separate a plurality of heat dissipation channels connecting the cooling medium inlet and the cooling medium outlet, and the baffle seals the plurality of heat dissipation channels; wherein the baffle has a notch, or a notch is formed between the baffle and the cavity wall of the heat dissipation cavity.

[0006] In one embodiment, the plurality of heat dissipation channels are distributed in sequence and at intervals along the length direction.

[0007] In one of the embodiments, the cooling medium outlet and the notch are respectively located at two ends of the heat dissipation cavity in the length direction.

[0008] In one of the embodiments, the cooling medium inlet and the notch are respectively located at two ends of the heat dissipation cavity in the length direction.

[0009] In one embodiment, the partition includes a first partition and a second partition, the first partition and the second partition are spaced apart in a direction from the cooling medium inlet to the cooling medium outlet, and the baffle is located in the gap between the first partition and the second partition.

[0010] In one embodiment, the cooling medium inlet and the cooling medium outlet are located on opposite sides of the heat dissipation cavity in the circumferential direction.

[0011] In one of the embodiments, the baffle and a plurality of the partitions are provided on both sides of the cooling medium inlet in the circumferential direction of the heat dissipation cavity.

[0012] In one embodiment, the cooling medium inlet and the partition are located in different radial directions of the heat dissipation cavity; and / or, the cooling medium outlet and the partition are located in different radial directions of the heat dissipation cavity.

[0013] In one embodiment, the light mixing shell includes a tube body, a tube side plate and a tube cover plate, the interior of the tube body has the light mixing cavity, the tube side plate is sleeved with the tube body at intervals, one end of the tube side plate is sealed to the tube body, and the tube cover plate is sealed to the other end of the tube side plate and the end of the tube body.

[0014] In one embodiment, the light mixing device further includes a first pipe and a second pipe, one end of the first pipe is installed at the cooling medium inlet; one end of the second pipe is installed at the cooling medium outlet.

[0015] In one embodiment, the light mixing device further comprises a liquid inlet nozzle, the liquid inlet nozzle is sealingly mounted on the cooling medium inlet, and the first pipe is detachably sealedly connected to the liquid inlet nozzle.

[0016] In one of the embodiments, the light mixing device further comprises a liquid outlet nozzle, the liquid outlet nozzle is sealingly mounted on the cooling medium outlet, and the second pipe is detachably and sealingly connected to the liquid outlet nozzle.

[0017] In one of the embodiments, the end of the first pipe away from the cooling medium inlet is connected to a first joint.

[0018] In one embodiment, the end of the second pipe away from the cooling medium outlet is connected to a second joint.

[0019] In a second aspect, the present application provides a light source module, including a light source substrate and any one of the above-mentioned light mixing devices, wherein the light source substrate is installed in the light mixing housing, and the light emitting area of ​​the light source substrate is accommodated in the light mixing cavity.

[0020] The beneficial effects of the light mixing device and light source module provided by the utility model are as follows: the cooling medium flows into the heat dissipation cavity of the light mixing shell from the cooling medium inlet, and flows to the cooling medium outlet along the multiple heat dissipation channels and the notch and leaves the heat dissipation cavity. The multiple heat dissipation channels increase the flow area of ​​the cooling medium in the heat dissipation cavity. The baffle limits the flow speed of the cooling medium, so that the cooling medium of the multiple heat dissipation channels converges to the notch and then redistributes to the multiple heat dissipation channels, prolonging the heat exchange time of the cooling medium in the heat dissipation cavity, realizing sufficient heat exchange between the heat dissipation cavity and the light mixing cavity surrounded by the heat dissipation cavity, solving the technical problem that the heat dissipation effect of the existing light mixing tube needs to be improved, thereby reducing the temperature of the cavity wall of the light mixing cavity irradiated by the light, and can be used with high light output power or high incident energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a light mixing device provided in an embodiment of the utility model;

[0023] Figure 2 for Figure 1 An exploded view of the light mixing device in FIG.

[0024] Figure 3 The schematic diagram of the flow of cooling medium in the light mixing device (after removing the cylinder side plate);

[0025] Figure 4 for Figure 1 A cross-sectional view of the light mixing device along line AA;

[0026] Figure 5 for Figure 1 A cross-sectional view of the light mixing device along line BB.

[0027] Among them, the reference numerals in the figure are:

[0028] 110, light mixing housing; 111, light mixing cavity; 112, heat dissipation cavity; 113, cooling medium inlet; 114, cooling medium outlet; 115, cylinder body; 116, cylinder side plate; 117, cylinder cover plate; 118, mounting groove; 119, light emitting groove; 120, baffle; 121, notch; 130, partition; 131, heat dissipation channel; 132, first partition; 133, second partition;

[0029] 210, first pipeline; 211, first connecting piece; 212, third connecting piece; 220, second pipeline; 221, second connecting piece; 222, fourth connecting piece; 230, liquid inlet nozzle; 240, liquid outlet nozzle; 250, first joint; 260, second joint. DETAILED DESCRIPTION

[0030] The embodiments of the present invention 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 invention, and should not be construed as limiting the present invention.

[0031] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0032] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0033] In addition, 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 the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0034] 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.

[0035] Embodiment 1

[0036] Please combine Figure 1 and Figure 2 The light mixing device provided in the present application includes a light mixing housing 110. The light mixing housing 110 has a length direction Z, and the light mixing housing 110 has a light mixing cavity 111 and a heat dissipation cavity 112. The light mixing cavity 111 penetrates the light mixing housing 110 along the length direction Z, and the heat dissipation cavity 112 is arranged around the outer periphery of the light mixing cavity 111. The heat dissipation cavity 112 has a cooling medium inlet 113 and a cooling medium outlet 114 (please refer to Figure 4 ).

[0037] A baffle 120 and a plurality of separators 130 are provided in the heat dissipation cavity 112. The plurality of separators 130 separate a plurality of heat dissipation channels 131 that are connected to the cooling medium inlet 113 and the cooling medium outlet 114. The baffle 120 seals the plurality of heat dissipation channels 131. In some embodiments, the baffle 120 has a notch 121, that is, each side edge of the baffle 120 is respectively sealed and connected to the cavity wall of the heat dissipation cavity 112, and the cooling medium can only bypass the baffle 120 through the notch 121 of the baffle 120 itself. In other embodiments, a notch 121 is formed between the baffle 120 and the cavity wall of the heat dissipation cavity 112, that is, there is a gap between one side wall of the baffle 120 and the cavity wall of the heat dissipation cavity 112, and the gap 121 is formed by the gap, and the other side walls of the baffle 120 are sealed and connected to the cavity wall of the heat dissipation cavity 112, and the cooling medium can only bypass the baffle 120 through the notch 121 formed by the baffle 120 and the cavity wall of the heat dissipation cavity 112.

[0038] When the light mixing device and the light source are used together, the light emitted by the light source hits the wall of the light mixing cavity 111 , and a part of the light energy is converted into heat energy, causing the temperature to rise. Figure 3 The dashed arrows in the figure indicate the flow direction of the cooling medium. Figure 3 In order to reduce the temperature of the cavity wall of the light mixing cavity 111 irradiated by the light, the cooling medium flows into the heat dissipation cavity 112 of the light mixing housing 110 from the cooling medium inlet 113, and flows to the cooling medium outlet 114 along the multiple heat dissipation channels 131 and the notch 121 and leaves the heat dissipation cavity 112. The cooling medium takes away the heat of the light mixing housing 110, thereby improving the heat dissipation efficiency of the light mixing cavity 111. Among them, the multiple heat dissipation channels 131 increase the flow area of ​​the cooling medium in the heat dissipation cavity 112, increase the heat dissipation area, and the baffle 120 limits the flow speed of the cooling medium, so that the cooling medium of the multiple heat dissipation channels 131 in the front half converges to the notch 121 and then is redistributed to the multiple heat dissipation channels 131 in the back half, prolonging the heat exchange time of the cooling medium in the heat dissipation cavity 112, improving the heat exchange efficiency between the heat dissipation cavity 112 and the light mixing cavity 111 surrounded by the heat dissipation cavity 112, so that the light mixing device can be used with high light output power or high incident energy.

[0039] In some embodiments, the cooling medium may be a liquid, such as liquid water, liquid oil, etc., or a gas, such as air, nitrogen or carbon dioxide, which is not limited here.

[0040] In some embodiments, in combination Figure 2 and Figure 3 , multiple separators 130 separate multiple heat dissipation channels 131, which can be formed between two adjacent separators 130, or between the separator 130 and the cavity wall of the heat dissipation cavity 112, which is not limited here. Figure 3 The two separators 130 at the two ends in the length direction Z respectively form heat dissipation channels 131 with the cavity wall of the heat dissipation cavity 112 , and the other separators 130 respectively form heat dissipation channels 131 with the adjacent separators 130 .

[0041] In some embodiments, the shape of the separator 130 can be an arc, a zigzag line, an S-shape, etc. Correspondingly, the heat dissipation channel 131 can be an arc, a zigzag line, an S-shape, etc., which is not limited here.

[0042] In some embodiments, in combination Figure 3 , multiple heat dissipation channels 131 are sequentially spaced and distributed along the length direction Z. Based on this, the heat dissipation housing has different heat dissipation channels 131 passing through in the length direction Z, and the heat dissipation housing dissipates heat at different positions in the length direction Z at the same time, achieving heat dissipation uniformity and synchronous cooling of the heat dissipation housing in the length direction Z, and avoiding heat concentration or thermal stress in the length direction Z.

[0043] Specifically, multiple heat dissipation channels 131 can extend in a direction perpendicular to the length direction Z, that is, when the cooling medium flows along the heat dissipation channel 131, its position in the length direction Z remains unchanged; or they can extend in a direction inclined to the length direction Z, that is, when the cooling medium flows along the heat dissipation channel 131, its position in the length direction Z changes, which is not limited here.

[0044] It can be understood that the plurality of heat dissipation channels 131 can be distributed in sequence and at intervals perpendicular to the length direction Z, that is, each heat dissipation channel 131 extends approximately along the length direction Z, and the cooling medium flows along the length direction Z and gradually performs heat exchange. For example, the light source is located at one end of the light mixing housing 110 in the length direction Z, and the heat dissipation channel 131 guides the cooling medium to flow along the length direction Z from the end close to the light source to the end away from the light source, which is conducive to efficiently reducing the temperature of the light mixing housing 110 near the light source end.

[0045] If the cooling medium outlet 114 and the notch 121 are located at the same end of the heat dissipation cavity 112 in the length direction Z, the cooling medium will flow through the heat dissipation channel 131 located at the same end as the cooling medium outlet 114 and the notch 121, resulting in less cooling medium flowing in the heat dissipation channel 131 away from the cooling medium outlet 114 and the notch 121 in the length direction Z, which in turn causes the heat dissipation efficiency of the cavity wall of the light mixing cavity 111 corresponding to the heat dissipation channel 131 to be low, and local high temperature may occur. For example, combined with Figure 3 If the cooling medium outlet 114 and the notch 121 are both located at the lower end in the length direction Z, the cooling medium will be concentrated in the heat dissipation channel 131 at the lower end, resulting in less cooling medium in the heat dissipation channel 131 at the upper end, thereby causing low heat dissipation efficiency of the upper end wall of the mixing cavity 111.

[0046] In one embodiment, in combination Figures 2 to 4 The cooling medium outlet 114 and the notch 121 are respectively located at two ends of the heat dissipation cavity 112 in the length direction Z. Such a design ensures that the cooling medium flowing through the notch 121 flows to each heat dissipation channel 131 along the length direction Z, so that the flow rate of the cooling medium in the plurality of heat dissipation channels 131 is substantially the same, and the heat dissipation efficiency at each position of the cavity wall of the light mixing cavity 111 is substantially the same, that is, the heat dissipation uniformity of the cavity wall of the light mixing cavity 111 is good.

[0047] If the cooling medium inlet 113 and the notch 121 are located at the same end of the heat dissipation cavity 112 in the length direction Z, the cooling medium will flow through the heat dissipation channel 131 located at the same end as the cooling medium inlet 113 and the notch 121, resulting in less cooling medium flowing in the heat dissipation channel 131 away from the cooling medium inlet 113 and the notch 121 in the length direction Z, which in turn causes the heat dissipation efficiency of the cavity wall of the light mixing cavity 111 corresponding to the heat dissipation channel 131 to be low, and local high temperature may occur. For example, combined with Figure 3 If the cooling medium inlet 113 and the notch 121 are both located at the lower end in the length direction Z, the cooling medium will be concentrated in the heat dissipation channel 131 at the lower end, resulting in less cooling medium in the heat dissipation channel 131 at the upper end, thereby causing low heat dissipation efficiency of the upper end wall of the mixing cavity 111.

[0048] In one embodiment, in combination Figures 2 to 4 The cooling medium inlet 113 and the notch 121 are respectively located at two ends of the heat dissipation cavity 112 in the length direction Z. Such a design ensures that the cooling medium flowing through the cooling medium inlet 113 flows to each heat dissipation channel 131 along the length direction Z, so that the flow rate of the cooling medium in the plurality of heat dissipation channels 131 is substantially the same, and the heat dissipation efficiency at each position of the cavity wall of the light mixing cavity 111 is substantially the same, that is, the heat dissipation uniformity of the cavity wall of the light mixing cavity 111 is good.

[0049] It can be understood that in other embodiments, the cooling medium inlet 113, the notch 121 and the cooling medium outlet 114 can be distributed at intervals along the length direction Z, so as to guide the cooling medium to flow through the multiple heat dissipation channels 131 located at different positions in the length direction Z, so as to achieve substantially the same heat dissipation efficiency at each position of the cavity wall of the light mixing cavity 111, that is, the heat dissipation uniformity of the cavity wall of the light mixing cavity 111 is good. Alternatively, the cooling medium inlet 113, the notch 121 and the cooling medium outlet 114 can be located at the same end in the length direction Z, in which case the two ends of the heat dissipation channel 131 are respectively located at the two ends in the length direction Z, so as to guide the cooling medium to flow in the length direction Z, so as to achieve uniform heat dissipation of the cavity wall of the light mixing cavity 111 in the length direction Z.

[0050] In the present application, the separator 130 can be integrally formed with the light mixing housing 110, or can be manufactured separately from the light mixing housing 110 and then separately connected, for example, by various methods such as bonding, welding, crimping, plugging, snap-on, threaded connection or fastener connection, which are not limited here. Specifically, the separator 130 and the light mixing housing 110 are integrally formed, thereby reducing the assembly steps, and the position consistency and position accuracy of the separator 130 on the light mixing housing 110 are high.

[0051] In this application, combined Figure 5 The baffle 120 can be integrally formed with the light mixing housing 110, or it can be manufactured separately from the light mixing housing 110 and then connected separately, for example, by various methods such as bonding, welding, crimping, plugging, snapping, threading or fastener connection, which are not limited here. Specifically, the baffle 120 and the light mixing housing 110 are integrally formed, thereby reducing the assembly steps, and the position consistency and position accuracy of the partition 130 on the light mixing housing 110 are high.

[0052] In one embodiment, in combination Figure 2 The partition sheet 130 includes a first partition sheet 132 and a second partition sheet 133, and the first partition sheet 132 and the second partition sheet 133 are spaced apart from each other in a direction from the cooling medium inlet 113 to the cooling medium outlet 114. The baffle sheet 120 is located in the interval between the first partition sheet 132 and the second partition sheet 133 to prevent the baffle sheet 120 from interfering with the first partition sheet 132 and the second partition sheet 133.

[0053] Furthermore, the spacing between the first spacer 132, the second spacer 133 and the baffle 120 can effectively reduce the occurrence of eddy currents and convection, ensuring that the cooling medium can flow smoothly without reducing the heat dissipation efficiency due to eddy currents. When the baffle 120, the first spacer 132 and the second spacer 133 are integrally formed with the light mixing housing 110, the spacing between the baffle 120 and the first spacer 132, and the spacing between the baffle 120 and the second spacer 133 is conducive to reducing the difficulty of integral molding. When the baffle 120, the first spacer 132 and the second spacer 133 are separately connected to the light mixing housing 110, the spacing between the baffle 120 and the first spacer 132, and the spacing between the baffle 120 and the second spacer 133 leaves an assembly space, which facilitates the connection operation.

[0054] In some embodiments, in combination Figure 4 The cooling medium inlet 113 and the cooling medium outlet 114 are located on opposite sides of the heat dissipation cavity 112 in the circumferential direction. Based on this, the cooling medium enters from one side of the heat dissipation cavity 112 and is discharged from the other side, which maximizes the heat dissipation area, increases the contact area between the cooling medium and the cavity wall of the heat dissipation cavity 112, and effectively improves the heat dissipation efficiency. In addition, the cooling medium flows along the circumference of the heat dissipation cavity 112 to achieve circumferential heat dissipation uniformity of the heat dissipation cavity 112, that is, to ensure the circumferential heat dissipation uniformity of the cavity wall of the light mixing cavity 111.

[0055] In one embodiment, in combination Figure 2 and Figure 4 In the circumferential direction of the heat dissipation cavity 112, baffles 120 and multiple separators 130 are arranged on both sides of the cooling medium inlet 113, that is, multiple heat dissipation channels 131 are formed on both sides of the circumferential direction of the cooling medium inlet 113. Based on this, the cooling medium enters the heat dissipation cavity 112 from the cooling medium inlet 113, and flows into the multiple heat dissipation channels 131 on both sides and the notches 121 of the baffles 120 in the circumferential direction of the cooling medium inlet 113. Finally, the cooling medium on both sides converges from the cooling medium outlet 114 and leaves the heat dissipation cavity 112, realizing 360° flow through the cavity wall of the heat dissipation cavity 112, thereby improving the circumferential heat dissipation uniformity.

[0056] In one of the embodiments, the cooling medium inlet 113 and the partition 130 are located at different radial directions of the heat dissipation cavity 112, so that there is a gap between the cooling medium inlet 113 and the partition 130. The cooling medium enters the heat dissipation cavity 112 through the cooling medium inlet 113, and can be buffered in the gap and distributed to each heat dissipation channel 131, avoiding directly rushing to the partition 130 to cause poor flow, vortex, etc.

[0057] In one of the embodiments, the cooling medium outlet 114 and the partition 130 are located at different radial directions of the heat dissipation cavity 112, so that there is a gap between the cooling medium outlet 114 and the partition 130. After the cooling medium leaves the multiple heat dissipation channels 131, it can be cached in the gap and converged to pass through the cooling medium outlet 114, thereby avoiding the partition 130 blocking the cooling medium outlet 114 and causing the cooling medium in some heat dissipation channels 131 to flow unsmoothly or be retained.

[0058] In some embodiments, in combination Figure 2 The light mixing housing 110 includes a tube body 115, a tube side plate 116 and a tube cover plate 117. The tube body 115 has a light mixing cavity 111 inside. The tube side plate 116 is sleeved with the tube body 115 at intervals. One end of the tube side plate 116 is sealed and connected to the tube body 115. The tube cover plate 117 is sealed and connected to the other end of the tube side plate 116 and the end of the tube body 115. The outer wall of the tube body 115, the inner wall of the tube side plate 116 and the tube cover plate 117 enclose a heat dissipation cavity 112. Based on this, the tube body 115, the tube side plate 116 and the tube cover plate 117 are manufactured separately and then connected separately, which is conducive to reducing the manufacturing difficulty of the light mixing housing 110.

[0059] Specifically, the cylinder body 115 and the cylinder side plate 116, as well as the cylinder cover plate 117 and the cylinder body 115 and the cylinder side plate 116, can be connected in a split manner by welding, bonding, crimping, plugging, clamping, threaded connection or fastener connection, etc., which are not limited here. Optionally, the cylinder body 115 and the cylinder side plate 116 are combined by high-temperature brazing, so that the connection is highly sealed, the sealing of the heat dissipation cavity 112 is improved, and it is resistant to high temperatures, ensuring good connection reliability at high temperatures, thereby ensuring heat dissipation reliability. Optionally, the cylinder cover plate 117 is combined by high-temperature brazing with the cylinder body 115 and the cylinder side plate 116, so that the connection is highly sealed, the sealing of the heat dissipation cavity 112 is improved, and it is resistant to high temperatures, ensuring good connection reliability at high temperatures, thereby ensuring heat dissipation reliability.

[0060] Specifically, the blocking piece 120 is integrally formed on the outer side wall of the cylinder body 115 , or the blocking piece 120 is integrally formed on the inner side wall of the cylinder side plate 116 , which is not limited here.

[0061] Specifically, the separator 130 is integrally formed on the outer wall of the cylinder body 115 , or the separator 130 is integrally formed on the inner wall of the cylinder side plate 116 , which is not limited here.

[0062] In the present application, the material of the cylinder body 115, the cylinder side plate 116 and the cylinder cover plate 117 is not limited, and can be steel, copper, aluminum, graphite, plastic and other materials, which are not limited here.

[0063] In some embodiments, in combination Figure 4 and Figure 5 The light mixing housing 110 is used to install the light source substrate, and the light emitted by the light source substrate enters the light mixing cavity 111. In this way, the light mixing housing 110 and the light source substrate are fixedly connected, and the positions of the two are relatively fixed, which ensures that the light emitted by the light source substrate stably enters the light mixing cavity 111, thereby improving the working reliability of the light mixing device and the light source substrate.

[0064] In one embodiment, in combination Figure 4 and Figure 5 A mounting groove 118 is provided at one end of the light mixing shell 110 in the length direction Z. The mounting groove 118 is connected to the light mixing cavity 111. The mounting groove 118 is used for installing the light source substrate. The mounting groove 118 can improve the installation and positioning accuracy of the light source substrate on the light mixing shell 110. The light source substrate is located at the end of the light mixing shell 110 in the length direction Z, ensuring that the light emitted by the light source substrate is stably emitted into the light mixing cavity 111 along the length direction Z.

[0065] Optionally, the light source substrate seals the mounting groove 118 to prevent the light emitted by the light source substrate from leaking to areas other than the light mixing cavity 111 .

[0066] Specifically, a light emitting groove 119 is provided at the bottom of the mounting groove 118, and the light emitting groove 119 is connected to the light mixing cavity 111. The light emitting groove 119 is used to accommodate the light source on the light source substrate, that is, the light emitting groove 119 is the light emitting area of ​​the light source substrate, ensuring that all the light emitted by the light source is emitted into the light mixing cavity 111 along the length direction Z.

[0067] In one embodiment, the tube body 115 is used to mount a light source substrate. Specifically, the light source substrate is mounted on an end of the tube body 115 away from the tube cover 117 .

[0068] In some embodiments, in combination Figure 1 and Figure 2 The light mixing device further includes a first pipe 210 and a second pipe 220. One end of the first pipe 210 is installed at the cooling medium inlet 113. One end of the second pipe 220 is installed at the cooling medium outlet 114. The first pipe 210 can increase the supply distance of the cooling medium, and the second pipe 220 can increase the discharge distance of the cooling medium, so that there is a certain distance between the light mixing housing 110 and the external split liquid cooling system, and it is not necessary to be arranged adjacent to the external split liquid cooling system, thereby increasing the position flexibility of the light mixing device, and at the same time, the noise generated by the external split liquid cooling system is separated from the light mixing housing 110 to avoid affecting the sound reception, leaving only the quiet and main light mixing cavity 111 and the light source.

[0069] In one embodiment, in combination Figure 2The light mixing device further includes a liquid inlet nozzle 230, which is sealed and installed at the cooling medium inlet 113, and the first pipe 210 is detachably and sealedly connected to the liquid inlet nozzle 230. Based on this, the connection between the first pipe 210 and the liquid inlet nozzle 230 can be easily disassembled and installed, which is convenient for maintenance, cleaning or replacement. This can reduce the time and workload required for troubleshooting and improve the convenience of maintenance.

[0070] In addition, the first pipe 210 is detachably sealed and connected to the liquid inlet nozzle 230, so that the first pipe 210 of different lengths can be flexibly replaced according to different cooling medium delivery distances. For example, when a longer distance from an external split liquid cooling system is required, the length of the first pipe 210 can be adjusted according to the use requirements and installation method, and the liquid drive device of the external split liquid cooling system can be adjusted to meet the flow and head requirements. Increasing the length of the first pipe 210 not only makes the installation location more flexible, but also moves the main noise source outside the main sound receiving area, leaving only the quiet and main mixing cavity 111 and light source, solving the problem of not being able to have both high power and low noise.

[0071] Optionally, the first pipe 210 is detachably connected to the liquid inlet nozzle 230 via a first connector 211. The first connector 211 may be a clamp to improve the tightness of the connection. It is understood that in other embodiments, the first pipe 210 may also be bonded, welded, fastened, threaded, crimped, or clamped to the liquid inlet nozzle 230, which is not limited here.

[0072] In one embodiment, in combination Figure 2 The light mixing device further includes a liquid outlet nozzle 240, which is sealed and installed at the cooling medium outlet 114, and the second pipe 220 is detachably and sealedly connected to the liquid outlet nozzle 240. Based on this, the connection between the second pipe 220 and the liquid outlet nozzle 240 can be easily disassembled and installed, which is convenient for maintenance, cleaning or replacement. This can reduce the time and workload required for troubleshooting and improve the convenience of maintenance.

[0073] In addition, the second pipe 220 is detachably sealed and connected to the liquid outlet nozzle 240, so that the second pipe 220 of different lengths can be flexibly replaced according to different cooling medium discharge distances. For example, increasing the length of the second pipe 220 not only makes the installation location more flexible, but also moves the main noise source outside the main sound receiving area, leaving only the quiet and main light mixing cavity 111 and light source, solving the problem of being unable to achieve both high power and low noise.

[0074] Optionally, the second pipe 220 is detachably connected to the liquid outlet nozzle 240 via a second connecting member 221. The second connecting member 221 may be a clamp to improve the tightness of the connection. It is understood that in other embodiments, the second pipe 220 may also be bonded, welded, fastened, threaded, crimped, or clamped to the liquid outlet nozzle 240, which is not limited here.

[0075] In the present application, the material of the liquid inlet nozzle 230 and / or the liquid outlet nozzle 240 is not limited, and can be steel, copper, aluminum, graphite, plastic and other materials, which are not limited here.

[0076] In the present application, the material of the first pipe 210 and / or the second pipe 220 is not limited, and can be steel, copper, aluminum, graphite, plastic and other materials, which are not limited here.

[0077] In one embodiment, in combination Figure 2 The end of the first pipe 210 away from the cooling medium inlet 113 is connected to a first joint 250, which facilitates the first pipe 210 to be connected to different cooling medium supply systems through different first joints 250, and also facilitates the rapid disassembly and assembly of the first pipe 210. The first pipe 210 can be packaged and transported separately from the external split liquid cooling system, and can be connected and used after arriving at the destination.

[0078] It can be understood that the end of the first pipe 210 away from the cooling medium inlet 113 can also be connected to a flange, that is, the first pipe 210 can be connected to the split liquid cooling system through a detachable connecting component such as a first joint 250 or a flange, which is not limited here.

[0079] Optionally, the first pipe 210 is connected to the first joint 250 via a third connection member 212. The third connection member 212 may be a clamp to improve the tightness of the connection. It is understood that in other embodiments, the first pipe 210 may also be bonded, welded, fastened, threaded, crimped, or clamped to the first joint 250, which is not limited here.

[0080] In the present application, the material of the first connector 250 is not limited, and can be steel, copper, aluminum, graphite, plastic, etc., which is not limited here.

[0081] In one embodiment, in combination Figure 2 The end of the second pipe 220 away from the cooling medium outlet 114 is connected to a second joint 260, which facilitates the second pipe 220 to be connected to different cooling medium supply systems through different second joints 260, and also facilitates the rapid disassembly and assembly of the second pipe 220. The second pipe 220 can be packaged and transported separately from the external split liquid cooling system, and can be connected and used after arriving at the destination.

[0082] It can be understood that the end of the second pipe 220 away from the cooling medium inlet 113 can also be connected to a flange, that is, the second pipe 220 can be connected to the split liquid cooling system through a detachable connecting component such as a second joint 260 or a flange, which is not limited here.

[0083] Optionally, the second pipe 220 is connected to the second joint 260 via a fourth connecting member 222. The fourth connecting member 222 may be a clamp to improve the tightness of the connection. It is understood that in other embodiments, the second pipe 220 may also be bonded, welded, fastened, threaded, crimped, or clamped to the second joint 260, which is not limited here.

[0084] In the present application, the material of the second joint 260 is not limited, and can be steel, copper, aluminum, graphite, plastic and other materials, which are not limited here.

[0085] Embodiment 2

[0086] The present application further provides a light source module, including a light source substrate and any one of the light mixing devices in Embodiment 1. The light source substrate is installed in a light mixing housing 110 , and a light emitting area of ​​the light source substrate is accommodated in a light mixing cavity 111 .

[0087] In this embodiment, the light emitted by the light source substrate is incident on the wall of the light mixing cavity 111, and part of the light energy is converted into heat energy. Figure 3 In order to reduce the temperature of the cavity wall of the light mixing cavity 111 irradiated by the light, the cooling medium flows into the heat dissipation cavity 112 of the light mixing housing 110 from the cooling medium inlet 113, and flows to the cooling medium outlet 114 along the multiple heat dissipation channels 131 and the notch 121 and leaves the heat dissipation cavity 112. The cooling medium takes away the heat of the light mixing housing 110, thereby improving the heat dissipation efficiency of the light mixing cavity 111. Among them, the multiple heat dissipation channels 131 increase the flow area of ​​the cooling medium in the heat dissipation cavity 112, increase the heat dissipation area, and the baffle 120 limits the flow speed of the cooling medium, so that the cooling medium of the multiple heat dissipation channels 131 in the front half converges to the notch 121 and then is redistributed to the multiple heat dissipation channels 131 in the back half, prolonging the heat exchange time of the cooling medium in the heat dissipation cavity 112, improving the heat exchange efficiency between the heat dissipation cavity 112 and the light mixing cavity 111 surrounded by the heat dissipation cavity 112, so that the light mixing device can be used with a light source substrate with high optical power.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A light mixing device, It is characterized in that The light mixing device comprises: A light mixing housing (110), the light mixing housing (110) having a length direction (Z), the light mixing housing (110) having a light mixing cavity (111) and a heat dissipation cavity (112), the light mixing cavity (111) passing through the light mixing housing (110) along the length direction (Z), the heat dissipation cavity (112) being arranged around the outer periphery of the light mixing cavity (111), the heat dissipation cavity (112) having a cooling medium inlet (113) and a cooling medium outlet (114), the heat dissipation cavity (112) 12) is provided with a baffle (120) and a plurality of separators (130), the plurality of separators (130) separate a plurality of heat dissipation channels (131) connecting the cooling medium inlet (113) and the cooling medium outlet (114), and the baffle (120) seals the plurality of heat dissipation channels (131); wherein the baffle (120) has a notch (121), or a notch (121) is formed between the baffle (120) and the cavity wall of the heat dissipation cavity (112).

2. The light mixing device according to claim 1, Features: The plurality of heat dissipation channels (131) are sequentially spaced and distributed along the length direction (Z).

3. The light mixing device according to claim 2, Features: The cooling medium outlet (114) and the notch (121) are respectively located at two ends of the heat dissipation cavity (112) in the length direction (Z).

4. The light mixing device according to claim 2, Features: The cooling medium inlet (113) and the notch (121) are respectively located at two ends of the heat dissipation cavity (112) in the length direction (Z).

5. The light mixing device according to claim 1, Features: The partition (130) includes a first partition (132) and a second partition (133), wherein the first partition (132) and the second partition (133) are spaced apart in a direction from the cooling medium inlet (113) to the cooling medium outlet (114), and the baffle (120) is located in the space between the first partition (132) and the second partition (133).

6. The light mixing device according to claim 1, Features: The cooling medium inlet (113) and the cooling medium outlet (114) are located on opposite sides of the heat dissipation cavity (112) in the circumferential direction.

7. The light mixing device according to claim 6, Features: In the circumferential direction of the heat dissipation cavity (112), the baffle (120) and a plurality of the partition plates (130) are arranged on both sides of the cooling medium inlet (113).

8. The light mixing device according to claim 6, Features: The cooling medium inlet (113) and the partition sheet (130) are located at different radial directions of the heat dissipation cavity (112); And / or, the cooling medium outlet (114) and the partition plate (130) are located in different radial directions of the heat dissipation cavity (112).

9. The light mixing device according to claim 1, Features: The light mixing housing (110) comprises a tube body (115), a tube side plate (116) and a tube cover plate (117); the tube body (115) has the light mixing cavity (111) inside; the tube side plate (116) is sleeved with the tube body (115) at intervals; one end of the tube side plate (116) is sealed to the tube body (115); and the tube cover plate (117) is sealed to the other end of the tube side plate (116) and the end of the tube body (115).

10. The light mixing device according to any one of claims 1 to 9, It is characterized in that The light mixing device also includes: A first pipe (210), one end of the first pipe (210) being installed at the cooling medium inlet (113); A second pipe (220), one end of the second pipe (220) is installed at the cooling medium outlet (114).

11. The light mixing device according to claim 10, Features: The light mixing device further includes at least one of the following: The light mixing device further comprises a liquid inlet nozzle (230), the liquid inlet nozzle (230) is sealed and installed at the cooling medium inlet (113), and the first pipe (210) is detachably sealed and connected to the liquid inlet nozzle (230); The light mixing device further comprises a liquid outlet nozzle (240), the liquid outlet nozzle (240) is sealed and installed on the cooling medium outlet (114), and the second pipe (220) is detachably sealed and connected to the liquid outlet nozzle (240); The end of the first pipe (210) away from the cooling medium inlet (113) is connected to a first joint (250); The end of the second pipe (220) away from the cooling medium outlet (114) is connected to a second joint (260).

12. A light source module, Features: It comprises a light source substrate and the light mixing device according to any one of claims 1 to 11, wherein the light source substrate is mounted on the light mixing housing (110), and a light emitting area of ​​the light source substrate is accommodated in the light mixing cavity (111).

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