CN112894048B

CN112894048B - Pressing tool, light-emitting module, manufacturing method of light-emitting module and display device

Info

Publication number: CN112894048B
Application number: CN201911136579.3A
Authority: CN
Inventors: 王龙; 卫杨鹏; 彭园芳
Original assignee: Qingdao Hisense Laser Display Co Ltd
Current assignee: Qingdao Hisense Laser Display Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2023-04-14
Anticipated expiration: 2039-11-19
Also published as: CN112894048A

Abstract

The invention discloses a pressing tool, a light-emitting module, a manufacturing method of the light-emitting module and display equipment, and relates to the technical field of display, so that the manufacturing difficulty of a laser module is reduced, the manufactured laser module is ensured to have a good heat dissipation function, and meanwhile, the working power of the laser module is improved. The pressing tool is used for pressing at least one light-emitting device on the mounting substrate. It includes: the locking bracket and the at least one pressing component are arranged on the locking bracket; each pressing component comprises a pressing sleeve movably arranged on the locking bracket. The pressing sleeve is provided with a pressing end face stress end face and a pressing end face which are perpendicular to the axial direction of the pressing sleeve. When the LED is in use, the press-fit end face is contacted with at least one light-emitting device; the pressing end face is used for applying acting force to the light-emitting device along the axial direction of the pressing sleeve. The pressing tool provided by the invention is used for manufacturing the light-emitting module.

Description

Pressing tool, light-emitting module, manufacturing method of light-emitting module and display device

Technical Field

The invention relates to the technical field of display, in particular to a pressing tool, a display module, a manufacturing method of the display module and display equipment.

Background

The laser display technology is also called as laser projection technology, and is a novel display technology which converts electric energy into light energy by using a high-power semiconductor laser, modulates the light energy and projects the light energy onto a screen in a laser beam mode. The laser projection equipment applying the laser projection technology can truly reproduce rich and gorgeous colors of an objective world, provides more shocking expressive force, and gradually becomes a mainstream product of the projection industry.

The conventional laser module is a laser-on-axis (TO) module, which is formed by combining a plurality of TO lasers. In the process of synthesizing a laser TO module by a TO laser, the stability, the heat dissipation effect, the beam quality and the like of the TO laser need TO be ensured, a higher technical threshold exists, and the realization difficulty is higher. At present, most of laser modules are supplied by manufacturers in japan and europe such as riya, mitsubishi, oslen, and the like in a standardized laser module manner, so that the size of the laser projection equipment is limited by the standardized laser modules supplied by the manufacturers in many times, the laser projection equipment is difficult to realize miniaturization, and the projection picture quality of the laser projection equipment cannot meet the requirement of high brightness.

In order TO realize the self-sufficiency of the laser TO module, the scheme of fixing by two layers of pressing plates by a heat conduction silicone grease heat transfer mode in the related technology is adopted, but the heat dissipation effect of the scheme is poor, the laser cannot work at full power, the small volume is realized, and the aim of high brightness cannot be realized.

Disclosure of Invention

The invention aims to provide a pressing tool, a light-emitting module, a manufacturing method of the light-emitting module and display equipment, so that the manufacturing difficulty of a laser module is reduced, the manufactured laser module is ensured to have a good heat dissipation function, and meanwhile, the working power of the laser module is improved.

In order to achieve the above object, the present invention provides a bonding tool for bonding at least one light emitting device on a mounting substrate, the bonding tool comprising: the locking bracket and the at least one pressing component are arranged on the locking bracket; each pressing component comprises a pressing sleeve movably arranged on the locking support, and the pressing sleeve is provided with a pressing end face stress end face and a pressing end face which are perpendicular to the axial direction of the pressing sleeve;

when the pressing tool is in a use state, the pressing end face is contacted with the at least one light-emitting device; the pressing end face is used for applying acting force to the light-emitting device along the axial direction of the pressing sleeve.

Compared with the prior art, in the press-fit tool provided by the invention, each press-fit assembly comprises a press-fit sleeve movably mounted on the locking support, each press-fit sleeve is provided with a press-fit end face perpendicular to the axial direction of the corresponding press-fit sleeve, and the press-fit end faces are in contact with at least one light-emitting device when the press-fit tool is in a use state, so that the press-fit end faces of the press-fit sleeves can apply an acting force to the light-emitting devices along the axial direction of the press-fit sleeves under the condition that the acting force is applied to the stressed end faces of the press-fit sleeves in the welding process, and the light-emitting devices can be accurately welded on the mounting substrate, and the performance requirements of the formed light-emitting module are further ensured. Therefore, the pressing tool provided by the invention is simple in structure, can assist welding equipment to accurately weld the light-emitting device on the welding substrate, and is beneficial to reducing the manufacturing cost of the light-emitting module and improving the production efficiency of the light-emitting module on the basis of ensuring the performance requirement of the light-emitting module. And when the welding material used for welding is a heat conduction welding material, when the light-emitting module works, the light-emitting device included in the light-emitting module can utilize the welding material and the mounting substrate to guide out the heat emitted by the light-emitting device, so that the light-emitting module is ensured to have a good heat dissipation effect. For example: the pressing tool provided by the invention can be applied to the manufacturing of the laser module, the manufacturing difficulty and the manufacturing cost of the laser module can be effectively reduced, the manufacturing efficiency of the laser module is improved, the laser module can be ensured to have a good heat dissipation function, and meanwhile, the working power of a laser is further improved.

The invention also provides a manufacturing method of the light-emitting module, which applies the pressing tool in the technical scheme; the manufacturing method of the light-emitting module comprises the following steps:

applying an acting force to the shell of at least one light-emitting device in a one-to-one correspondence manner along the axial direction of the pressing sleeve by using the pressing end surface of the pressing sleeve included in at least one pressing assembly in the welding process, so that the at least one light-emitting device is welded in at least one mounting groove of the mounting substrate in a one-to-one correspondence manner; the axial direction of the pressing sleeve is the same as the depth direction of the mounting groove; and one side of each light-emitting device, which is provided with a pin, is provided with an annular heat conduction welding sheet, and the pin of each light-emitting device penetrates through the annular heat conduction welding sheet, so that the pin of each light-emitting device penetrates through the annular heat conduction welding sheet.

Compared with the prior art, the manufacturing method of the light-emitting module provided by the invention has the same beneficial effects as the pressing tool in the technical scheme, and the details are not repeated herein.

The invention also provides a light-emitting module which is manufactured by the manufacturing method of the light-emitting module.

Compared with the prior art, the beneficial effects of the light-emitting module provided by the invention are the same as those of the pressing tool, and are not described herein again.

The invention also provides display equipment which comprises the light-emitting module and the modulation module.

Compared with the prior art, the display equipment provided by the invention has the same beneficial effect as the pressing tool.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a laser projection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating a state where a mounting base and a light emitting device are preassembled in an embodiment of the present invention;

fig. 3 is a schematic structural view of a light emitting device in an embodiment of the present invention;

fig. 4 is a schematic view illustrating a use state of the press-fitting tool according to the embodiment of the present invention;

fig. 5 is a first schematic view illustrating an assembly state of a pressing tool and a light emitting device according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating an assembly state of the pressing tool and the light emitting device according to the embodiment of the present invention;

fig. 7 is a schematic view of an assembled state of the pressing tool, the light emitting device, and the mounting substrate according to the embodiment of the present invention;

fig. 8 is a first flowchart of a method for manufacturing a light emitting module according to an embodiment of the present invention;

fig. 9 is a flowchart of a second method for manufacturing a light emitting module according to an embodiment of the present invention;

fig. 10 is a flow chart of a manufacturing method of a light emitting module according to a third embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

Fig. 1 shows a schematic structural diagram of a laser projection apparatus provided in an embodiment of the present application. As shown in fig. 1, the laser projection apparatus includes a laser light source 1, an optical engine 2, and a lens 3. The arrows in fig. 1 represent light paths.

As shown in fig. 1, the laser light source 1 is used for providing laser light to an optical machine; the optical machine 2 is used for modulating laser light and projecting the modulated laser light to the lens 3, so that the modulated laser light is imaged through the lens.

At present, most of lasers in a laser light source adopt an integrated laser module. The laser module is supplied by manufacturers of Japan and Europe such as Niya, mitsubishi, oselan and the like in a standard laser module mode at present, so that the size of the laser projection equipment is limited by the standard laser module supplied by the manufacturers at many times, the laser projection equipment is difficult to realize miniaturization, and the projection picture quality of the laser projection equipment cannot meet the requirement of high brightness.

Taking the laser TO module as an example, in order TO realize the autonomy of the laser TO module, the laser module is produced in one of the following two ways in the related art.

The first mode is as follows: utilize the mode of heat conduction silicone grease heat transfer, carry out the scheme of fixing through two-layer clamp plate, but this scheme radiating effect is not good, and the laser instrument can't realize full power work, has realized little volume, but can't realize the target of hi-lite.

The second mode is as follows: the mounting substrate was placed on a heated platen and the TO laser device was then soldered TO the mounting substrate with the aid of a machine vision system using air pressure control. However, the method has higher technical requirement and great realization difficulty, and is suitable for suppliers with larger goods delivery quantity such as Niya and Mitsubishi.

In view of the above problems, an embodiment of the invention provides a pressing tool, which is used to assist in manufacturing the light emitting module 4 shown in fig. 2. As shown in fig. 2, the light emitting module 4 includes a mounting substrate 42 and at least one light emitting device 41 shown in fig. 3. The light emitting device 41 has a PIN. The mounting substrate 42 has at least one mounting groove 420. The at least one light emitting device 41 can be pressed in the at least one mounting groove 420 by the pressing tool in a one-to-one correspondence manner. The light emitting device 41 may be an LED light emitting device, a laser device, an OLED device, or the like, but is not limited thereto.

As shown in fig. 4, the press-fitting tool 5 includes: a locking bracket 50 and at least one pressing component 51. As shown in fig. 5, each of the pressing assemblies 51 shown in fig. 4 includes a pressing sleeve 510 movably mounted on the locking bracket 50. The press-fit sleeve 510 has a force-receiving end surface and a press-fit end surface 511 perpendicular to the axial direction of the press-fit sleeve 510. The stressed end face and the pressing end face 511 are located on two sides of the locking bracket 50.

When the bonding tool is in use, the bonding end surface 511 is in contact with at least one light emitting device 41 as shown in fig. 4 and 5. The press-fit end surface 511 is used to apply a force to the light emitting device 41 in the axial direction of the press-fit sleeve 510. As for the number of the pressing assemblies 51, it can be set according to practical situations, for example: when the mounting substrate 42 has 8 mounting grooves 420, the number of the press-fit components 51 is 8. It should be understood that the light emitting device 41 is generally in a shell-and-tube structure, and the PIN is led out, so that when the pressing end face 511 of the pressing sleeve 510 applies a force to the light emitting device 41, the pressing end face 511 of the pressing sleeve 510 applies a force to the cap of the light emitting device 41.

The following process, which is for example a laser TO module, is described with reference TO fig. 4 and 5, and is only for explanation and not for limitation.

In the first step, an annular heat-conducting soldering tab 6 is disposed on the TO laser, and the material of the tab may be common soldering tin.

And secondly, utilizing the press-fit tool 5 TO assist at least one TO laser TO be welded in a mounting groove 420 of the mounting substrate 42 in a one-TO-one correspondence manner, so as TO obtain the laser TO module. Specifically, the at least one compression assembly 51 utilized includes a compression end face 511 of a compression sleeve 510 that applies a force TO the TO laser along an axial direction thereof. It should be appreciated that, in order TO ensure stable production of a good performance TO laser, the axial direction of the sleeve 510 is the same as the depth direction of the mounting groove 420.

As can be seen from the above, in the pressing tool provided in the embodiment of the present invention, each pressing assembly 51 includes the pressing sleeve 510 movably mounted on the locking bracket 50, the pressing sleeve 510 has the pressing end surface 511 perpendicular to the axial direction of the pressing sleeve 510, and when the pressing tool 5 is in use, the pressing end surface 511 contacts with the at least one light emitting device 41, so that, under the condition that an acting force is applied to the stressed end surface of the pressing sleeve 510 in the welding process, the pressing end surface 511 of the pressing sleeve 510 can apply an acting force to the light emitting device 41 along the axial direction of the pressing sleeve 510, thereby ensuring that the light emitting device 41 can be accurately welded on the mounting substrate 42, and further ensuring the performance requirements of the formed light emitting module. Therefore, the pressing tool provided by the embodiment of the invention is simple in structure, can assist the welding equipment to accurately weld the light-emitting device 41 on the welding substrate, and is beneficial to reducing the manufacturing cost of the light-emitting module and improving the production efficiency of the light-emitting module on the basis of ensuring the performance requirement of the light-emitting module. Moreover, since the thermal conductive welding material used for welding has good thermal conductivity, when the light emitting module works, the light emitting device 41 included in the light emitting module can use the welding material and the mounting substrate 42 to conduct the heat emitted by itself, thereby ensuring that the light emitting module has good heat dissipation effect. For example: the pressing tool provided by the embodiment of the invention can be applied to the manufacturing of the laser module, the manufacturing difficulty and the manufacturing cost of the laser module can be effectively reduced, the manufacturing efficiency of the light-emitting module is improved, the laser module is ensured to have good heat dissipation function, and meanwhile, the working power of a laser is further improved.

It should be noted that, as shown in fig. 4 to fig. 6, in order to avoid the light emitting device 41 from being welded in the mounting groove 420 of the mounting substrate 42 in a skewed manner, the pressing sleeve 510 may be set to have a sufficient strength or thickness to ensure that it will not deform under a stress. Of course, the distribution uniformity of the thermal welding material can also be controlled, and the finally obtained light-emitting module is ensured to have good performance.

As a possible implementation manner, as shown in fig. 4 and 5, in order to prevent the pressing sleeve 510 from rotating during the process that the pressing end face 511 of the pressing sleeve 510 presses the light emitting device 41, which may cause the light emitting device 41 to be tilted after being welded, the locking bracket 50 has at least one mounting through hole for mounting the pressing sleeve 510. The mounting through hole is located between the stressed end face and the press-fit end face 511. The axial direction of the mounting through-hole is the same as the axial direction of the caulking sleeve 510 at this time. The press-fit sleeves 510 included in each press-fit assembly 51 are correspondingly arranged in the mounting through holes one by one, the inner wall of each mounting through hole is provided with a first guide structure, and the outer side surface of each press-fit sleeve 510 included in each press-fit assembly 51 is provided with a second guide structure. The second guiding structure is matched with the first guiding structure to guide the pressing direction of the pressing sleeve 510. The guiding directions of the first guiding structure and the second guiding structure are the same as the axial direction of the pressing sleeve 510. At this time, when the pressing end surface 511 of the pressing sleeve 510 presses the light emitting device 41 along the axial direction thereof, under the mutual cooperation of the first guiding structure and the second guiding structure, the pressing sleeve 510 only applies an acting force to the light emitting device 41 in the axial direction without rotating, so that the light emitting device 41 can be accurately welded in the mounting groove 420 of the mounting substrate 42 without being skewed.

The first guide structure and the second guide structure may be implemented in various forms. For example: when the first guiding structure is a guiding strip extending along the axial direction of the mounting through hole, the second guiding structure is a guiding groove extending along the axial direction of the press-fit sleeve 510. Moreover, an opening is formed at one end of the guide groove close to the pressing end surface 511, so that the guide strip can enter the guide groove through the opening, and it is ensured that the pressing sleeve 510 only moves along the axial direction thereof without rotating under the guiding and limiting effects of the guide strip. It can be seen that the guide strip as the first guide structure essentially functions as a guide rail.

Another example is: the first guide structure is a guide groove extending in the axial direction of the mounting through-hole, and the second guide structure is a guide bar extending in the axial direction of the caulking sleeve 510 shown in fig. 5.

In a possible implementation manner, as shown in fig. 2, when the edge of the light emitting device 41 has at least one engaging groove 410, as shown in fig. 4 to 6, each pressing assembly 51 further includes at least one claw 513 disposed on the pressing end surface 511 of the pressing sleeve 510. At least one claw 513 arranged on the force-bearing end surface of the pressing sleeve 510 is used for regulating and controlling the rotation angle of the corresponding light-emitting device 41. At least one claw 513 included in each pressing component 51 is used for being clamped (in one-to-one correspondence) with at least one clamping groove 410 arranged at the edge of the corresponding light-emitting device 41, so as to prevent the light-emitting device 41 from rotating under the action of the pressing end surface 511 of the pressing sleeve 510, thereby ensuring that the light-emitting device 41 can be stably pressed in the mounting groove 420 of the mounting substrate 42 by the pressing sleeve 510, and ensuring that the obtained light-emitting module has good performance.

As shown in fig. 4 to 6, in order to reduce the rotation angle of the light emitting device 41 as much as possible, the fitting gap between the latch 513 and the slot 410 should be as small as possible, so that when the light emitting device 41 rotates or tends to rotate, the light emitting device 41 will not rotate or rotate to a relatively small extent under the limiting action of the latch 513, thereby ensuring that the light emitting device 41 can be stably welded or pressed in the mounting groove 420 of the mounting substrate 42.

As shown in fig. 4 to 6, the number of the claws 513 of the press-fitting end surface 511 provided to each press-fitting sleeve 510 may be set according to the number of the catching grooves 410 provided to the edge of the light emitting device 41. It should be ensured that the number of claws 513 is smaller than or equal to the number of catches 410. For example: when the number of the engaging grooves 410 provided on the edge of the light emitting device 41 is two, the number of the engaging grooves 410 provided on the engaging end surface 511 of the engaging sleeve 510 for pressing the light emitting device 41 is also two.

As shown in fig. 4 and 5, when there are a plurality of card slots 410 on the edge of the light emitting device 41 and a plurality of claws 513 on the edge of the pressing end surface 511 of each pressing sleeve 510, the positions of the claws 513 should be set according to the positions of the card slots 410 on the edge of the light emitting device 41, so as to ensure that the claws 513 can be accurately locked into the corresponding card slots 410.

For example: when the edge of the light emitting device has 4 card slots, a first card slot, a second card slot, a third card slot and a fourth card slot. The first clamping groove, the second clamping groove, the third clamping groove and the fourth clamping groove are uniformly distributed at the edge of the light-emitting device. At this time, if the first card slot, the second card slot, the third card slot and the fourth card slot are all idealized to be one point and are all distributed on a columnar light emitting device along the circumferential direction, a screen parallel to the bottom surface of the columnar light emitting device is taken as a projection plane, an included angle between a projection point of the first card slot and a projection point of the second card slot in a circular projection area formed by the columnar light emitting device is 90 degrees, an included angle between a projection point of the second card slot and a projection point of the third card slot in the circular projection area formed by the columnar light emitting device is 90 degrees, an included angle between a projection point of the third card slot and a projection point of the fourth card slot in the circular projection area formed by the columnar light emitting device is 90 degrees, and an included angle between a projection point of the fourth card slot and a projection point of the first card slot in the circular projection area formed by the columnar light emitting device is 90 degrees.

As shown in fig. 4 to 6, when the edge of the pressing end face 511 of the pressing sleeve 510 has two claws 513, the two claws 513 are evenly arranged on the edge of the pressing end face 511 of the pressing sleeve 510. If the first jaw and the second jaw are both idealized to be a point, when the pressing end face of the pressing sleeve 510 presses the columnar light-emitting device, the screen parallel to the bottom face of the columnar light-emitting device is taken as a projection plane, then the projection point of the first jaw on the projection plane coincides with the projection point of the first clamping groove, and the projection point of the second jaw on the projection plane coincides with the projection point of the second clamping groove. That is, the included angle between the first and second claw projection points in the circular projection area formed by the columnar light-emitting device is 180 °.

As a possible implementation manner, as shown in fig. 4 and fig. 5, the pressing sleeve 510 of each pressing assembly 51 further includes a limiting member 512 for preventing the at least one pressing sleeve 510 from being separated from the locking bracket 50, and the limiting member 512 included in each pressing assembly 51 is disposed on the force-receiving end surface of the pressing sleeve 510. The limiting member 512 may be a flat limiting member or an annular limiting member, as long as it is ensured that the pressing sleeve 510 does not fall off from the locking bracket 50.

As shown in fig. 4 to 6, when the locking bracket 50 is provided with at least one installation through hole for installing the pressing sleeve 510, if the limiting member 512 is a circular plate, the area of the circular plate should be larger than the cross-sectional area of the installation through hole. Moreover, since the pressing sleeve 510 presses the light emitting device 41 during the welding process, heat dissipation holes may be formed in the circular plate for sufficient heat dissipation, so as to dissipate the extra heat generated during the welding process, thereby preventing the light emitting device 41 from being damaged due to the over-high temperature in the mounting groove 420 during the welding process. When the heat dissipation holes are opened in the circular plate, the circular plate is substantially an annular heat dissipation plate. In addition, for the convenience of disassembling and assembling the pressing tool, the position-limiting member 512 may be fixed on the force-receiving end surface of the pressing sleeve 510 by a screw or other fixing method that can be repeatedly disassembled.

In a possible implementation manner, as shown in fig. 4 to 6, the pressing assembly 51 further includes an elastic member 514. The elastic member 514 may be of various types. For example: the elastic member 514 may be a spring or a rubber having elastic properties. The elastic member 514 and the pressing end surface 511 of the pressing sleeve 510 are located on the same side of the locking bracket 50. The elastic member 514 is disposed on the locking bracket 50. The end of the elastic member 514 away from the locking bracket 50 is disposed on the pressing sleeve 510. Also, the elastic member 514 is always in a compressed state.

As shown in fig. 4 to 6, when the pressing end surface 511 of the pressing sleeve 510 presses the light emitting device 41, under the action of the elastic member 514, the pressing sleeve 510 is always pushed by the elastic force of the elastic member 514, so that the action of the pressing sleeve 510 on the light emitting device 41 is further increased, and thus, the light emitting device 41 can be ensured to be tightly attached to the mounting groove 420 of the mounting substrate 42 in the welding process.

In some embodiments, as shown in fig. 4 and 5, each lamination assembly 51 further includes a stop 515 disposed on an outer sidewall of the lamination sleeve 510. The limiting platform 515 and the elastic element 514 are both located on the stressed end face of the locking bracket 50. The elastic member 514 is located between the position limiting table and the locking bracket 50. At this time, the elastic member 514 is pressed by the stopper and the locking bracket 50. For example: when the elastic member 514 is a spring, the elastic member 514 is sleeved on the pressing sleeve 510 and is pressed by the position-limiting platform 515 and the locking bracket 50, so that the elastic member 514 is in a compressed state.

As a possible implementation manner, as shown in fig. 4 and fig. 7, the pressing tool 5 further includes a yielding base 53 having a yielding groove 530 and a fixing plate 52 for fixing the mounting substrate 42. When the pressing tool is in use, the locking bracket 50 is disposed on the yielding base 53, and the force-receiving end surface of the pressing sleeve 510 is disposed in the yielding groove 530. That is to say, when the pressing tool 5 is in use, if the yielding base 53 needs to be used, the locking bracket 50 is disposed on the yielding base 53 in an inverted manner. The fixing plate 52 is fixed to the locking bracket 50, and the mounting substrate 42 is fixed to a surface of the fixing plate 52 adjacent to the locking bracket 50.

For example: as shown in fig. 4 to 7, when the light emitting device 41 needs to be clamped on the pressing end surface 511 of the pressing sleeve 510 by means of the clamping groove 410 and the clamping claw 513, the locking bracket 50 needs to be placed upside down on the mounting table on the yielding base 53 on the mounting table. At this time, the pressing sleeve 510 is free to fall toward the receding groove 530 of the receding base 53 under the action of gravity (due to the elastic member 514, the pressing sleeve 510 does not fall off from the locking bracket 50). It can be seen that when the locking bracket 50 is disposed on the yielding base 53 in an inverted manner, the yielding groove 530 of the yielding base 53 provides a downward moving space for the pressing sleeve 510 on the locking bracket 50. Since the distance between the pressing end surface 511 of the pressing sleeve 510 and the locking bracket 50 is closer and closer in the process of the pressing sleeve 510 moving downward under the action of gravity, the compression degree of the elastic member 514 located between the limiting table and the locking bracket 50 is greater. In this case, the claws 513 on the press-fit end surface 511 of the press-fit sleeve 510 are engaged with the engaging grooves 410 on the edge of the light emitting device 41, the mounting grooves 420 on the mounting substrate 42 are aligned with the light emitting device 41 engaged with the press-fit sleeve 510, and then the mounting substrate 42 is moved down so that the light emitting device 41 engaged with the press-fit sleeve 510 extends into the mounting groove 420 provided on the mounting substrate 42. Finally, the mounting substrate 42 is fixed by the fixing plate 52, and the fixing plate 52 is fixed to the locking bracket 50 by a fixing member such as a screw or a bolt.

As shown in fig. 4 to 7, after the fixing plate 52 is fixed to the locking bracket 50, the locking bracket 50 is removed from the abdicating base 53 and turned over again so that the locking bracket 50 is placed on the mounting table in the forward direction. At this time, the fixing plate 52 is in contact with the mounting table and located below the locking bracket 50. When the locking bracket 50 is in an inverted state, the pressing sleeve 510 moves downward toward the yielding groove 530, so that the distance between the pressing sleeve 510 and the locking bracket 50 is relatively small. When the locking bracket 50 is upright, the pressing sleeve 510 moves toward the mounting substrate 42 under the action of gravity. At this time, the distance between the locking bracket 50 and the pressing end surface 511 of the pressing sleeve 510 is further and further. Moreover, under the action of the elastic member 514, the light emitting device 41 can be further attached in the mounting groove 420 of the mounting substrate 42, so that the light emitting device 41 and the mounting groove 420 can be more accurately corresponded. In addition, after the light emitting module is manufactured, the locking bracket 50 may be placed upside down on the yielding base 53. At this time, the yielding base 53 provides a space for the pressing sleeve 510 to move downwards, so as to conveniently remove the fixing plate 52 and the light emitting module.

Specifically, as shown in fig. 4 to 7, the locking bracket 50 includes a locking plate 501 and a plurality of first supporting members 502 disposed on the locking plate 501. The side wall of the receding groove 530 is provided with a support platform for supporting the locking bracket 50. At this time, the support platform should be parallel to the bottom of the recess 530. When the press-fitting tool 5 is in use, the locking plate 501 is located on the support table, and the fixing plate 52 and the locking plate 401 are fixed together. Because the supporting table is disposed on the sidewall of the receding groove 530, when the locking plate 501 is disposed on the supporting table, the sidewall of the receding groove 530 can prevent the locking plate from deviating, thereby ensuring that the press-fitting tool 5, the light-emitting device 41, and the mounting substrate 42 are assembled together quickly, efficiently, and accurately.

Specifically, in order to facilitate heat dissipation, the fixing plate 52 is provided with a heat dissipation window 520 to quickly dissipate the welding heat during the welding process, thereby preventing the light emitting device 41 from being damaged due to the over-high temperature in the mounting groove 420 during the welding process.

As shown in fig. 2 to 8, an embodiment of the invention further provides a method for manufacturing a light emitting module. The manufacturing method of the light-emitting module is applied to the pressing tool described in the above embodiment. The manufacturing method of the light-emitting module comprises the following steps:

step 200: in the soldering process, a force is applied to the housing (e.g., a tube housing) of the at least one light-emitting device 41 by using the pressing end surface 511 of the pressing sleeve 510 included in the at least one pressing assembly 51 in a one-to-one correspondence manner along the axial direction of the pressing sleeve 510, so that the at least one light-emitting device 41 is soldered in the at least one mounting groove 420 of the mounting substrate 42 in a one-to-one correspondence manner. One side of each light emitting device 41 having the lead is provided with a ring-shaped heat conductive welding sheet 6, and the lead of each light emitting device 41 passes through the inside of the ring-shaped heat conductive welding sheet 6, so that the lead of each light emitting device 41 passes through the ring-shaped heat conductive welding sheet 6. The use state of the press-fit tool 5 is shown in fig. 4.

As shown in fig. 3, the annular heat conductive solder sheet 6 may be a meltable annular solder sheet. The annular solder pieces may be made of tin-copper lead-free low-temperature solder. As shown in fig. 3, the inner diameter of the annular heat-conducting welding piece 6 is set according to actual conditions. For example: when the distance between the annular heat-conducting welding sheet 6 and the PIN is relatively small, the two PINs PIN of the light-emitting device 41 are easily shorted together after the annular heat-conducting welding sheet 6 is melted. Based on this, the inner diameter of the annular heat conduction welding sheet 6 should be enough to ensure that the annular heat conduction welding sheet 6 can avoid the two PINs of the light emitting device 41 and keep a certain distance from the two PINs PIN. In addition, the thickness of the annular heat-conducting welding sheet 6 should be as thin as possible while ensuring the welding requirement, for example, the thickness of the annular heat-conducting welding sheet 6 is 0.05mm, the extension range of the annular heat-conducting welding sheet 6 after being melted is not very large, and the two pins of the light-emitting device 41 can be prevented from being short-circuited.

As shown in fig. 5, the outer diameter of the annular heat-conductive welding piece 6 is set according to actual conditions. For example: when mounting groove 420 is round hole mounting groove 420, the external diameter of cyclic annular heat conduction welding piece 6 should be less than the radial length of the bottom surface of mounting groove 420, can guarantee that the bottom of light emitting device 41 is in the same place with the firm welding in bottom of mounting groove 420 to can also prevent because cyclic annular heat conduction welding piece 6 is too big, lead to the unable problem emergence that gets into mounting groove 420 of light emitting device 41. In addition, when the outer diameter of the annular heat conduction welding piece 6 is too large, a part of the annular heat conduction welding piece 6 is positioned between the package of the light emitting device 41 and the sidewall of the mounting groove 420 after being melted, resulting in the deviation of the light emitting device 41. In addition, flux can be coated on the annular heat-conducting welding sheet 6 to increase viscosity, so that the light-emitting device 41 can be better welded in the installation groove 420.

It should be understood that, as shown in fig. 2 and 4, the axial direction of the press-fit sleeve 510 is the same as the depth direction of the mounting groove 420, and during the welding process, the central axis of the press-fit sleeve 510 included in the press-fit assembly 51 should coincide with the central axis of the corresponding mounting groove 420, so as to ensure that the light-emitting device 41 can be quickly and accurately welded in the mounting groove 420 with the aid of the press-fit assembly 51 of the press-fit tool.

For example, as shown in fig. 2 and 5, when the mounting substrate 42 has 8 mounting grooves 420, the press-fit tool includes 8 press-fit components 51. In the welding process, utilize the pressfitting terminal surface 511 of the pressfitting sleeve 510 that 8 pressfitting subassemblies 51 included with 8 TO laser one-TO-ones pressfitting TO 8 mounting grooves 420 in for 8 TO laser can be fast accurate the welding in 8 mounting grooves 420, form the laser module.

Compared with the prior art, the manufacturing method of the light emitting module provided by the embodiment of the invention has the same beneficial effects as the pressing tool, and details are not repeated herein.

In practical application, the welding process is carried out in welding equipment filled with protective gas, so that the annular heat-conducting welding sheet is prevented from being oxidized at high temperature. The protective gas can be inert gases such as nitrogen, argon and the like. In addition, the welding temperature in the welding process should be greater than or equal to the melting point of the annular heat conduction welding sheet and less than the tolerance temperature of the light-emitting device, so that the light-emitting device can be firmly welded in the mounting groove under the condition that the light-emitting device is not damaged. In order to ensure the welding effect, the holding time of the welding temperature higher than the melting point temperature of the annular heat conduction welding sheet is more than 60 s.

Illustratively, as shown in fig. 2 and 3, the soldering apparatus may be an SMT reflow oven. Adopt SMT reflow oven to heat cyclic annular heat conduction welding piece 6 for emitting device 41 can be in the same place with mounting groove 420 welding, makes in the light-emitting module use, can utilize cyclic annular heat conduction welding piece 6 to derive the heat that emitting device 41 gived off.

As a possible implementation manner, as shown in fig. 4 to 8, when the pressing tool includes the yielding base 53 and the fixing plate 52, before applying an acting force to the housing of the at least one light emitting device 41 by using the pressing end surface 511 of the pressing sleeve 510 included in the at least one pressing assembly 51 in a one-to-one correspondence manner along the axial direction of the pressing sleeve 510 in the welding process, the manufacturing method of the light emitting module further includes:

step 100: the press-fit tool 5, the light emitting device 41, and the mounting substrate 42 are assembled together. Fig. 8 shows a state in which the press-fitting jig 5, the light-emitting device 41, and the mounting substrate 42 are assembled together. As shown in fig. 9, step 100 specifically includes the following steps:

step 101: the locking bracket 50 is disposed on the yielding base 53, and the stressed end surface of the pressing sleeve 510 is located in the yielding groove 530 of the locking bracket 50. The force-receiving end surface of the press-fit sleeve 510 receives a pressure provided by a user or a mechanical device, so that the press-fit end surface 511 of the press-fit sleeve 510 can apply a force to the corresponding light-emitting device 41.

Step 102: the at least one light emitting device 41 is fixed by the pressing end surface 511 of the pressing sleeve 510 included in the at least one pressing assembly 51 in a one-to-one correspondence. For example: the claws 513 provided on the press-fitting end surface 511 of the press-fitting sleeve 510 are fitted into the fitting grooves 410 of the light emitting device 41. And, each light emitting device 41 has a lead distal from the press-fit end surface 511 of the corresponding press-fit sleeve 510.

Step 103: at least one light emitting device 41 is disposed in the at least one mounting groove 420 of the mounting substrate 42 in a one-to-one correspondence.

Step 104: the mounting substrate 42 is fixed by the fixing plate 52, the fixing plate 52 is fixed on the locking bracket 50, and the at least one light emitting device 41 and the mounting substrate 42 are located between the fixing plate 52 and the locking bracket 50. It should be appreciated that prior to step 200, the yield base 53 should be flipped over again and the locking bracket 50 removed.

As shown in fig. 4 to 8 and 10, after the step 200, the method for manufacturing the light emitting module further includes: step 300: and taking out the light-emitting module from the pressing tool. Step 300 specifically includes:

step 301: the locking part is disposed on the yielding base 53, and the stressed end surface of the pressing sleeve 510 disposed on the locking bracket 50 is disposed in the yielding groove 530 of the yielding base 53. The locking bracket 50 is now inverted over the abdicating base 53.

Step 302: the fixing plate 52 is removed from the locking bracket 50.

Step 303: the light emitting devices 41 included in the light emitting module are removed from the jaws 513 included in the corresponding press-fit sleeve 510.

The embodiment of the invention also provides a light-emitting module which can be a laser module, an LED module and the like. The light-emitting module is manufactured by the manufacturing method of the light-emitting module.

Compared with the prior art, the beneficial effects of the manufacturing method of the light-emitting module provided by the embodiment of the invention are the same as those of the manufacturing method of the light-emitting module, and are not repeated herein.

The embodiment of the invention also provides display equipment. The display equipment comprises the light-emitting module and the modulation module.

When the display device is a laser projection device, the light-emitting module is a laser module.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a pressfitting frock, its characterized in that for with at least one luminescent device pressfitting on mounting substrate, pressfitting frock includes: the locking bracket and the at least one pressing component are arranged on the locking bracket; each pressing component comprises a pressing sleeve movably arranged on the locking support, and the pressing sleeve is provided with a stress end face and a pressing end face which are perpendicular to the axial direction of the pressing sleeve;

when the pressing tool is in a use state, the pressing end face is in contact with the at least one light-emitting device; the pressing end face is used for applying acting force to the light-emitting device along the axial direction of the pressing sleeve;

the pressing tool further comprises a yielding base with a yielding groove and a fixing plate for fixing the mounting substrate;

when the pressing tool is in a use state, the locking support is arranged on the abdicating base, and the stressed end face of the pressing sleeve is positioned in the abdicating groove; the fixing plate is fixed with the locking support, and the mounting substrate is fixed on the surface of the fixing plate close to the locking support.

2. The lamination tool according to claim 1, wherein the locking bracket has at least one mounting through hole for mounting the lamination sleeve; the mounting through hole is positioned between the stressed end face and the pressing end face; the pressing sleeve of each pressing component is arranged in the mounting through hole, the inner wall of each mounting through hole is provided with a first guide structure, the outer side surface of the pressing sleeve of each pressing component is provided with a second guide structure, and the second guide structure is matched with the first guide structure; the guiding directions of the first guiding structure and the second guiding structure are the same as the axial direction of the pressing sleeve.

3. The press-fit tool according to claim 1, wherein when at least one locking groove is formed in an edge of the light emitting device, each press-fit component further comprises at least one clamping claw arranged on a press-fit end face of the press-fit sleeve, and the at least one clamping claw of each press-fit component is used for being clamped with the at least one locking groove formed in the edge of the corresponding light emitter.

4. The press-fitting tool according to claim 1, wherein the press-fitting sleeve of each press-fitting assembly further includes a limiting member for preventing at least one of the press-fitting sleeves from being separated from the locking bracket, and the limiting member of each press-fitting assembly is disposed on a force-receiving end surface of the press-fitting sleeve.

5. The pressing tool according to any one of claims 1 to 4, wherein the pressing assembly further comprises an elastic member, the pressing end surfaces of the elastic member and the pressing sleeve are located on the same side of the locking bracket, the elastic member is disposed on the locking bracket, and one end of the elastic member, which is far away from the locking bracket, is disposed on the pressing sleeve.

6. The pressing tool according to claim 5, wherein each pressing assembly further comprises a limiting table arranged on the outer side wall of the pressing sleeve, and the limiting table and the elastic element are both located on the stressed end face of the locking support; the elastic piece is located between the limiting table and the locking support.

7. The press-fitting tool according to claim 1, wherein the locking bracket comprises a locking plate and a plurality of first supporting members arranged on the locking plate; a supporting table for supporting the locking support is arranged on the side wall of the abdicating groove;

the pressing tool is in a use state, the locking plate is located on the supporting table, and the fixing plate and the locking plate are fixed together.

8. A method for manufacturing a light-emitting module, which is characterized by applying the pressing tool of any one of claims 1 to 7; the manufacturing method of the light-emitting module comprises the following steps:

9. The method of claim 8, wherein the bonding temperature during the bonding process is greater than or equal to the melting point of the annular heat conductive bonding pad and less than the tolerance temperature of the light emitting device; and/or the presence of a gas in the gas,

the welding process is carried out in a welding apparatus which is fed with shielding gas.

10. The method of claim 8, wherein before applying the force to the housing of the at least one light emitting device in a one-to-one correspondence manner along an axial direction of the press-fit sleeve by using the press-fit end surface of the press-fit sleeve included in the at least one press-fit component during the welding process, the method further comprises:

a locking support is arranged on the yielding base, and the stressed end face of the pressing sleeve is positioned in a yielding groove formed in the locking support;

fixing at least one light-emitting device in a one-to-one correspondence manner by utilizing the pressing end face of a pressing sleeve of at least one pressing assembly, wherein the pin of each light-emitting device is far away from the pressing end face of the corresponding pressing sleeve;

arranging at least one light-emitting device in at least one mounting groove of the mounting substrate in a one-to-one correspondence manner;

and fixing the mounting substrate by using a fixing plate, fixing the fixing plate on the locking bracket, and positioning the at least one light-emitting device and the mounting substrate between the fixing plate and the locking bracket.

11. A light emitting module manufactured by the method of any one of claims 8 to 10.

12. A display device comprising the light-emitting module of claim 11 and a modulation module.

13. The display apparatus according to claim 12, wherein the display apparatus is a laser projection apparatus, and the light-emitting module is a laser module.