Jig for preventing lamp panel from warping
By using a combination of positioning columns and elastic parts in the LED PCB lamp plate fixture, the problem of warping of the lamp plate at high temperatures is solved, ensuring the flatness and splicing effect of the lamp plate.
Patent Information
- Application Number
- CN202420932991.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Small-pitch LED PCB lamp plates are prone to warping in the process process, resulting in poor flatness of the finished product, especially in high-temperature rewelding furnaces, which are difficult to control.
Design a fixture including a stage, a moving block and an elastic member. By setting a positioning column and an elastic member on the stage and a moving block, the lamp plate is fixed and the elastic force is used to prevent warping, ensuring that the lamp plate is under high temperature conditions. Flatness.
Effectively prevent the lamp board from warping and deforming at high temperatures, ensure the flatness during splicing, and avoid poor box effect.
Smart Images
Figure CN222366442U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of display device jigs, and in particular to a jig for preventing a light board from warping. Background Art
[0002] Currently, fine-pitch LED PCBs are subject to manufacturing process constraints, making warpage difficult to control and meet requirements. Warpage is primarily caused by two factors: First, the incoming bare board warpage, which can be as little as 0.5% diagonal; and second, uncontrollable warping during the reflow oven due to high temperatures.
[0003] The warping of the existing finished light panels is currently measured to be up to 1.3mm. When they are assembled into a cabinet, the flatness is extremely poor, resulting in poor results when assembled into a cabinet and displaying a large screen. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a fixture with a simple structure for preventing light panels from warping, so as to achieve arc splicing in two dimensional directions at the same time.
[0005] In a first aspect, the present application provides a fixture for preventing a light panel from warping, comprising: a carrier, wherein at least one first positioning post is provided on the carrier;
[0006] A moving block, wherein at least one second positioning column is provided on the moving block;
[0007] An elastic member, in a working state, is located between the movable end of the carrier and the moving block; wherein, in a working state, the light board is fixed on the first positioning column and the second positioning column.
[0008] In a possible embodiment, the number of the first positioning columns is 2.
[0009] In a possible embodiment, the two first positioning posts are arranged on the same side away from the movable end of the carrier.
[0010] In a possible embodiment, the two first positioning posts are disposed on two adjacent side surfaces away from the movable end of the carrier.
[0011] In a possible embodiment, the movable end of the carrier is provided with at least one notch, and the moving block is provided with a protrusion matching the notch.
[0012] In a possible embodiment, the second positioning post is disposed on the protrusion.
[0013] In a possible embodiment, there are two protrusions.
[0014] In a possible embodiment, each of the protrusions is provided with the second positioning column.
[0015] In a possible embodiment, a mounting hole is provided on the movable end of the carrier; the mounting hole is used to place the elastic member.
[0016] In a possible embodiment, the fixture for preventing the light panel from warping further includes: a fastener, wherein the fastener is used to fix the moving block on the movable end of the carrier.
[0017] Beneficial effects:
[0018] The fixture for preventing light panel warping provided in this application employs positioning posts disposed on both the carrier and the movable block, thereby securing the light panel simultaneously. Furthermore, by disposing an elastic member between the carrier and the movable block, the horizontal outward elastic force generated by the elastic member tightens the light panel, preventing the panel from warping inward, upward, or downward due to the high temperatures in a reflow oven. This ensures the flatness of the light panel and prevents poor cabinet flatness caused by warping during assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the planar structure of a fixture for preventing light panels from warping provided by an embodiment of the present application;
[0020] Figure 2 for Figure 1 The figure shows the working diagram of the fixture that prevents the light board from warping after fixing the light board.
[0021] Figure numerals: 100 - a fixture for preventing the light board from warping; 110 - a carrier; 120 - a moving block; 130 - an elastic member; 140 - a fastener; 111 - a first positioning column; 112 - an opening; 113 - a first groove; 116 - a notch; 117 - a mounting hole; 118 - a locking opening; 121 - a protrusion; 122 - a second positioning column; 123 - a through hole. DETAILED DESCRIPTION
[0022] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.
[0023] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application include direct and indirect connections (couplings) unless otherwise specified. The directional terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying 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 application.
[0024] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections; they can refer to direct connections, indirect connections through an intermediary, or internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of these terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," and so on, in the specification, claims, and drawings of this application are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "include," "may include," "comprise," or "may include" as used in this application indicate the presence of the corresponding functions, operations, components, etc. disclosed, and do not limit the presence or absence of one or more additional functions, operations, components, etc. Furthermore, the terms "include" or "comprising" indicate the presence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions.
[0025] See also Figure 1 and Figure 2 The present application provides a fixture 100 for preventing a light board from warping, comprising: a carrier 110 , a moving block 120 and an elastic member 130 .
[0026] The carrier 110 is used for placing the light panel.
[0027] Optionally, at least one first positioning column 111 is provided on the carrier 110. The first positioning column 111 is used to fix a light board (such as a PCB light board).
[0028] It should be noted that a fixing hole matching the first positioning column 111 is pre-opened on the lamp board.
[0029] Optionally, the height of the first positioning column 111 is greater than / equal to the thickness of the light board.
[0030] Optionally, the number of the first positioning columns 111 is 2.
[0031] Optionally, the two first positioning posts 111 are arranged on the same side away from the movable end of the carrier 110 .
[0032] Optionally, the two first positioning posts 111 are disposed on two adjacent side surfaces away from the movable end of the carrier 110 .
[0033] Optionally, a first groove 113 is provided in the carrier 110 .
[0034] As an embodiment, the two first positioning posts 111 are disposed on the same side of the first groove 113 .
[0035] As another embodiment, the two first positioning posts 111 are disposed on two adjacent side surfaces of the first groove 113 .
[0036] Optionally, the thickness of the first groove 113 is smaller than the thickness of the carrier 110 .
[0037] That is, there is a step between the carrier 110 and the first groove 113 .
[0038] Optionally, a second groove is further provided in the carrier 110 , and the second groove is provided in the first groove 113 .
[0039] As another embodiment, an opening 112 is defined in the carrier 110 , and the opening 112 is located in the first groove 113 .
[0040] Optionally, the area of the opening 112 is smaller than the opening area of the first groove 113 .
[0041] In a possible embodiment, at least one notch 116 is defined at the movable end of the carrier 110 .
[0042] Optionally, there are two notches 116 , and the two notches 116 are spaced apart.
[0043] As an embodiment, in order to match the notch 116 , the moving block 120 is provided with a protrusion 121 that matches the notch 116 .
[0044] It is understandable that the number of protrusions 121 and recesses 116 is matched one to one, preferably two.
[0045] At least one second positioning post 122 is disposed on the moving block 120 .
[0046] Optionally, the size of the second positioning column 122 is equal to that of the first positioning column 111 .
[0047] Optionally, the size of the second positioning column 122 is equal to the height of the first positioning column 111 .
[0048] Optionally, the number of the second positioning posts 122 is 2.
[0049] As an embodiment, the second positioning post 122 is provided on the protrusion 121 , that is, each protrusion 121 is provided with a second positioning post 122 .
[0050] Furthermore, the second positioning post 122 is disposed opposite to the first positioning post 111 .
[0051] In a possible embodiment, a mounting hole 117 is defined on the movable end of the carrier 110 ; the mounting hole 117 is used to accommodate the elastic member 130 .
[0052] Optionally, there are two mounting holes 117 , each located on an outer side of the recess 116 .
[0053] Optionally, the number of elastic members 130 is two.
[0054] It should be understood that the size of the elastic member 130 after maximum contraction is greater than or equal to the depth of the mounting hole 117 .
[0055] Optionally, the elastic member 130 is a spring.
[0056] It should be noted that if Figure 2 As shown, in the working state, the elastic member 130 is located between the movable end of the carrier 110 and the moving block 120 ; wherein, in the working state, the lamp board is fixed on the first positioning column 111 and the second positioning column 122 .
[0057] In a possible embodiment, the fixture 100 for preventing the light panel from warping further includes a fastener 140 .
[0058] The fastener 140 is used to fix the moving block 120 on the movable end of the carrier 110 .
[0059] As an embodiment, a through hole 123 is opened on the moving block 120, and a locking hole 118 is opened on the movable end of the carrier 110. The fastener 140 passes through the through hole 123 and cooperates with the locking hole 118 to complete the locking of the moving block 120 to the carrier 110.
[0060] Optionally, the through hole 123 and the locking opening 118 are threaded holes, and the fastener 140 is a screw.
[0061] In a possible embodiment, assembly holes are further provided on both sides of the locking opening 118 , and the moving block 120 is provided with assembly protrusions matching the assembly holes.
[0062] It should be noted that before securing the light board, the elastic members 130 are first placed in the mounting holes 117 on both sides of the carrier 110. The movable block 120 is then engaged with the carrier 110 using the fasteners 140. The PCB light board is then positioned so that its four positioning holes mate with the positioning posts. Finally, the fasteners 140 are loosened. The elastic members 130 exert a horizontal outward pull on the movable block 120 and carrier 110.
[0063] In summary, the fixture 100 for preventing light panel warping provided in this embodiment provides positioning posts on both the carrier 110 and the movable block 120, thereby securing the light panel simultaneously. Furthermore, by positioning the elastic member 130 between the carrier 110 and the movable block 120, the horizontal outward elastic force generated by the elastic member 130 tightens the light panel, preventing the panel from warping inward or upward or downward due to the high temperatures in a reflow oven. This ensures the flatness of the light panel and prevents poor cabinet flatness caused by warping during assembly.
[0064] It should be understood that the terms "first," "second," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of this application, "plurality" means two or more, unless otherwise specifically defined.
[0065] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0066] It should be understood that the application of this application is not limited to the above examples. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the scope of protection of the claims appended to this application. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A fixture for preventing a light board from warping, characterized in that: include: A carrier, wherein at least one first positioning column is arranged on the carrier; A moving block, wherein at least one second positioning column is provided on the moving block; An elastic member, in a working state, the elastic member is located between the movable end of the carrier and the moving block; wherein, in a working state, the light board is fixed on the first positioning column and the second positioning column.
2. The fixture for preventing the light board from warping according to claim 1, characterized in that: The number of the first positioning columns is 2.
3. The fixture for preventing the light board from warping according to claim 2, characterized in that: The two first positioning posts are arranged on the same side away from the movable end of the carrier.
4. The fixture for preventing the light board from warping according to claim 2, characterized in that: The two first positioning posts are arranged on two adjacent side surfaces away from the movable end of the carrier.
5. The fixture for preventing the light board from warping according to claim 1, characterized in that: The movable end of the carrier is provided with at least one notch, and the moving block is provided with a protrusion matching the notch.
6. The fixture for preventing the lamp board from warping according to claim 5, characterized in that: The second positioning column is arranged on the protrusion.
7. The fixture for preventing the lamp board from warping according to claim 6, characterized in that: The number of the protrusions is two.
8. The fixture for preventing the lamp board from warping according to claim 7, characterized in that: The second positioning column is disposed on each of the protrusions.
9. The fixture for preventing the light board from warping according to any one of claims 1 to 8, characterized in that: A mounting hole is provided on the movable end of the carrier; the mounting hole is used to place the elastic member.
10. The fixture for preventing the lamp board from warping according to claim 9, characterized in that: Also includes: A fastener is used to fix the moving block on the movable end of the carrier.