Display module spring structure

Abstract

The utility model discloses a display module spring structure, comprising a backlight iron stand, which comprises a stud connected to the backlight iron stand and used for sleeving a PCB (Printed Circuit Board); the through hole is formed in the PCB and used for exposing the stud; the elastic piece is arranged between the stud and the PCB and is used for elastically supporting the PCB; and the positioning piece is arranged on the stud and is used for being matched with the elastic piece so as to realize quick disassembly and assembly of the PCB. According to the display module spring structure provided by the utility model, the elastic pieces are additionally arranged at the positions of the stud and the through hole on the backlight iron stand, a small section of groove is CNC formed in the positioning piece on the stud, the PCB and the spring are sequentially sleeved into the stud, and the spring is pressed downwards and rotated by 90 degrees to complete assembly, so that the bottom of the spring is connected to the grounding copper sheet of the through hole of the PCB in a pressing manner; the top of the spring can be embedded into the groove at the top end of the stud groove, and the PCB can be fixed on the backlight iron stand by the elastic force of the spring, so that the stability of the PCB after installation is realized on the premise of keeping the structure of a conventional backlight module.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB boards, in particular to a display module spring structure. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts.

[0003] As the instruction manual Figure 1-3 As shown, most of the existing liquid crystal display modules are equipped with backlight studs 1-1 and PCB boards 1-2, wherein the PCB boards are generally fixed to the backlight iron frame 1-3 by conductive double-sided adhesive. In addition, the PCB boards 1-2 are generally provided with through holes, and some studs 1-1 will pass through the PCB through holes, which also plays a certain role in fixing the PCB boards 1-2.

[0004] However, in the actual production and preparation process, in order to ensure the firmness between the PCB board and the backlight iron frame, the viscosity of the conductive double-sided adhesive is generally relatively strong, which increases the difficulty of rework. This requires the study of a new fixing method that can not only fix the PCB board but also facilitate rework by production workers. For this purpose, the present application provides a display module spring structure. Utility Model Content

[0005] Based on this, it is necessary to provide a display module spring structure to address the above technical problems. A spring device is added at the position of the backlight iron frame stud and the PCB through-hole. The stud has a groove near the base for installing the spring. The PCB board and the spring are inserted into the stud in sequence. After the spring is pressed down and rotated 90 degrees for assembly, when rework is required, only the spring needs to be pressed down and rotated, and the spring will pop out automatically, making it convenient for employees to perform rework operations.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A display module spring structure includes a backlight iron frame, which includes:

[0008] Studs, which are connected to the backlight iron frame and used for mounting the PCB board;

[0009] Through holes are provided on the PCB to expose the studs;

[0010] An elastic member, which is arranged between the stud and the PCB board to form an elastic support for the PCB board;

[0011] The positioning piece is arranged on the stud and is used to cooperate with the elastic piece to realize the rapid disassembly and assembly of the PCB board.

[0012] Furthermore, the positioning member is a support section formed on the stud close to the surface of the PCB board, and a support space for accommodating the elastic member is formed at one end of the support section facing the PCB board.

[0013] Furthermore, a copper sheet is sleeved on the edge of the through hole of the PCB board for bottom support of the elastic member to prevent the elastic member from directly contacting the PCB board.

[0014] Furthermore, the elastic member is a spring.

[0015] Further, the spring has an upper section, a middle section and a lower section;

[0016] The upper section, the middle section and the lower section are connected end to end in sequence to form a spring.

[0017] Furthermore, both sides of the support section have arc surfaces for passing through, and the other two sides have locking planes, and the opening of the upper section body in the spring is adapted to the support section so as to pass through the arc surfaces and the locking planes;

[0018] The outer diameter of the lower section body is larger than that of the upper section body and is adapted to the copper sheet.

[0019] Furthermore, both sides of the bottom of the support section are provided with grooves, and the grooves are adapted to the top of the upper section body, so that the elastic force support of the elastic member itself can make the upper section body and the grooves form a snap-fit ​​state;

[0020] The groove and the locking plane are perpendicular to each other.

[0021] Furthermore, an auxiliary unit is installed on the support section, and pressing the auxiliary unit along the height direction of the stud can drive the elastic member to retract and rotate, so as to realize the disassembly and assembly of the PCB board.

[0022] Furthermore, the auxiliary unit comprises a track fixed to the top of the supporting section and a slider slidably arranged in the track, and a pressing arm is hingedly connected to the interior of the slider via a damping shaft.

[0023] Furthermore, both sides of the pressing arm have extension surfaces, and a guide frame is fixed on the inner side of the track for passing through the top end of the stud to form an assembly on the supporting section.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The display module spring structure provided by the utility model adds elastic parts at the positions of the studs and through holes on the backlight iron frame, and a small groove is CNC-cut in the positioning part on the stud. After the PCB board and the spring are sequentially inserted into the stud, the spring is pressed down and rotated 90 degrees to complete the assembly, the bottom of the spring will be pressed onto the grounding copper sheet of the PCB through hole, and the top of the spring will be embedded in the groove at the top of the stud groove. The spring elastic force will fix the PCB board to the backlight iron frame, thereby further achieving the stability of the PCB board after installation while retaining the structure of the conventional backlight module. At the same time, when rework is required, it is only necessary to press down and rotate the spring, and the spring will automatically pop out, which is convenient for employees to perform rework operations.

[0026] Through the setting of the auxiliary unit, the two pressing arms can be unfolded and flipped toward the spring, so that they can contact the surface of the spring and slide along the direction of its track. This can not only form a downward rotation when installing the spring, but also realize the downward rotation reset before disassembly, thereby reducing the conflict between the spring and the hand and facilitating the protection of the fingers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the conventional backlight module iron frame stud structure proposed in the background technology of the utility model;

[0028] Figure 2 The utility model provides Figure 1 Schematic diagram of the top view of the conventional stud structure;

[0029] Figure 3 The utility model provides Figure 1 Schematic diagram of conventional stud installation structure;

[0030] Figure 4 A schematic diagram of a top view of the stud structure of the display module spring structure provided by the utility model;

[0031] Figure 5 A schematic diagram of the side view of the stud structure of the display module spring structure provided by the utility model;

[0032] Figure 6 A schematic diagram of the structure of the display module spring structure provided by the utility model when the elastic member and the stud are placed in a top view;

[0033] Figure 7 A schematic diagram of the structure of the display module spring structure provided by the utility model with the elastic member and the stud inserted in the top and side views;

[0034] Figure 8 A schematic diagram of a top view of the structure of the display module spring structure provided by the utility model after the elastic member and the stud are installed;

[0035] Fig. 9A schematic diagram of the side view of the spring structure of the display module provided by the utility model after the elastic member and the stud are installed;

[0036] Fig.10 A schematic diagram of the auxiliary unit structure in Embodiment 3 of the display module spring structure provided by the utility model;

[0037] Fig.11 This is a schematic diagram of the second structural form of the auxiliary unit in Example 3 of the display module spring structure provided by the utility model.

[0038] The markings in the figure are as follows:

[0039] Backlight iron frame 1, PCB board 10, through hole 11, copper sheet 12;

[0040] Stud 2;

[0041] Elastic member 3, spring 30, upper section body 31; middle section body 32, lower section body 33;

[0042] Positioning member 4; support section 40, arc surface 41, locking plane 42, groove 43, support space 44,

[0043] Auxiliary unit 5 , rail 50 , slider 51 , pressing arm 52 , expansion surface 53 , guide frame 54 . DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0045] As mentioned in the background art, the PCB board is generally fixed to the backlight iron frame by conductive double-sided adhesive, and the viscosity of the conductive double-sided adhesive is generally strong, thereby increasing the difficulty of rework.

[0046] In order to solve this technical problem, the utility model provides a display module spring structure, which is applied to a PCB board.

[0047] Specifically, please refer to Figure 4-9 The display module spring structure specifically includes a backlight iron frame 1, which includes:

[0048] The stud 2 is connected to the backlight iron frame 1 and used for mounting the PCB board 10;

[0049] A through hole 11 is provided on the PCB board 10 for exposing the stud 2;

[0050] An elastic member 3, which is disposed between the stud 2 and the PCB board 10 and is used to form an elastic support for the PCB board 10;

[0051] The positioning member 4 is arranged on the stud 2 and is used to cooperate with the elastic member 3 to achieve rapid disassembly and assembly of the PCB board 10 .

[0052] The display module spring structure provided by the utility model installs the elastic member 3 between the PCB board 10 and the positioning member 4. Through the supporting effect of the elastic member 3, the elastic force of the elastic member 3 can be transmitted to resist between the PCB board 10 and the positioning member 4, thereby improving the overall stability after assembly compared with the traditional installation of the PCB board 10. At the same time, due to the installation method of pressing and screwing the elastic member 3 and the removal method of pressing and screwing it out, the traditional operation method of using double-sided adhesive is abandoned, thereby realizing the rapid removal operation of the PCB board 10 after subsequent maintenance.

[0053] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0054] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0056] Example 1

[0057] Please refer to Figure 4-9 , a display module spring structure, the positioning member 4 is a support section 40 formed on the stud 2 close to the surface of the PCB board 10, and the support section 40 is formed with a support space 44 for accommodating the elastic member 3 at one end facing the PCB board 10;

[0058] The PCB board 10 is provided with a copper sheet 12 at the edge of the through hole 11 for supporting the bottom of the elastic member 3 to prevent the elastic member 3 from directly contacting the PCB board 10. The elastic member 3 is a spring 30.

[0059] The spring 30 comprises an upper section 31, a middle section 32 and a lower section 33, wherein the upper section 31, the middle section 32 and the lower section 33 are connected end to end in sequence to form the spring 30. The state of the spring 30 placed in the support space 44 is a compressed state. The elastic tendency of the compressed spring 30 is transmitted to the PCB board 10 and the support section 40 to form a resistance and fastening to the PCB board 10.

[0060] Both sides of the support section 40 have arc surfaces 41 for passing through, and the other two sides have locking planes 42. The opening of the upper section 31 in the spring 30 is adapted to the support section 40 so as to pass through the arc surface 41 and the locking plane 42.

[0061] like Figure 6 and Figure 7 As shown, before the spring 30 is inserted, the PCB board 10 is firstly sleeved on the backlight iron frame 1 through the through hole 11, and then the upper section 31 of the spring 30 is aligned with the arc surface 41 to be sleeved on the stud 2. At this time, the lower section 22 of the spring 30 is in contact with the copper sheet 12, and in the process of pressing the upper section 31 of the spring toward the PCB board 10, the spring 30 in the compression process will make the upper section 31 gradually approach the support section 40 and finally pass through the arc surface 41;

[0062] After the upper section 31 completely passes through the arc surface 41, the spring 30 can be rotated 90 degrees. After the rotation, the upper section 31 on the spring 30 is formed as shown in FIG. Figure 8 and Fig. 9 As shown in the state, the upper section 31 on which the spring 30 is pressed against is in conflict with the support section 40, thereby completing the assembly of the spring 30. At this time, the elastic force of the spring 30 can form a support and fastening for the PCB 10;

[0063] Similarly, the spring 30 is pressed to release the upper section 31 thereon from contact with the support section 40, and then the spring 30 is rotated ninety degrees to reset it, and the spring 30 is released so that its own elastic force can cause it to pop out through the arc surface 41, thereby realizing the rapid disassembly and maintenance of the PCB board 10.

[0064] Example 2

[0065] The display module spring structure provided in Example 1 is further optimized. Specifically, Figure 4-9 As shown,

[0066] The outer diameter of the lower body 33 is larger than that of the upper body 31 and is compatible with the copper sheet 12;

[0067] Both sides of the bottom of the support section 40 are provided with grooves 43, and the grooves 43 are adapted to the top of the upper section body 31, so that the elastic force support of the elastic member 3 itself can make the upper section body 31 and the grooves 43 form a snap-fit ​​state;

[0068] The groove 43 and the locking plane 42 are perpendicular to each other;

[0069] In the process of rotating the spring 30 ninety degrees for installation in Example 2, the upper section 31 on the rotated spring 30 is subjected to its own elastic force, thereby forming an elastic resistance force toward the support section 40. Through this resistance force, the upper section 31 will form a snapping effect with the corresponding groove 43 on the support section 40. Through this snapping step, the fastening of the spring 30 after installation is guaranteed, so that the PCB board 10 will not form a relative autonomous sliding with the support section 40 during the subsequent transportation and use, thereby ensuring the stability after installation and fastening.

[0070] Through the above-mentioned structural design, and because the groove 43 and the locking plane 42 are arranged perpendicular to each other, after the spring 30 is rotated ninety degrees to form an engagement with the groove 43, the locking plane 42 can be used to expose more of the upper section 31 in the spring 30 to the outside, so that the operator's hand can have more contact space, which is more conducive to pressing the spring 30 for installation or removal.

[0071] Example 3

[0072] The display module spring structure provided in Example 1 or 2 is further optimized, such as Fig.10 and Fig.11 As shown, an auxiliary unit 5 is installed on the support section 40 of the display module spring structure. Pressing the auxiliary unit 5 along the height direction of the stud 2 can drive the elastic member 3 to retract and rotate, so as to form the disassembly and assembly of the PCB board 10;

[0073] The auxiliary unit 5 includes a track 50 fixed to the top of the support section 40 and a slider 51 slidably arranged in the track 50. The slider 51 has a pressing arm 52 hingedly connected to the inside of the slider 51 through a damping shaft. The pressing arm 52 and the slider 51 can be flipped relative to each other, so that the spring 30 can be inserted through the following steps: Fig.10 The placement state of the pressing arm 52 shown does not form a movement obstacle therewith, thereby ensuring smooth insertion of the spring 30 and smooth removal after disassembly;

[0074] The pressing arm 52 has an expansion surface 53 on both sides, and a guide frame 54 is fixed on the inner side of the track 50 for passing through the top end of the stud 2 to form an assembly on the support section 40, and the auxiliary unit 5 is assembled by fixing the guide frame 54 on the stud column 2;

[0075] During the process of pressing and rotating the spring 30 for installation or rotating and resetting for removal, the pressing arm 52 can be turned over to rotate toward the spring 30 until the extension surface 53 contacts the upper section 31 on the spring 30, and then the spring 30 can be pressed by directly pressing the upper section 31;

[0076] Through the above operation, direct contact between the operator's hand and the spring 30 is avoided, which is beneficial to reduce the discomfort caused by the resistance force of the spring 30 on the operator's hand, and at the same time increases the pressing force area, making it easier to press. When the spring 30 is pressed by the extended surface 53, the operator's fingers other than pressing can assist the spring 30 on both sides of the extended surface 53, so as to realize the synchronous rotation of the slider 51 on the slide rail 50 following the spring 30, thereby meeting the rotation installation or disassembly operation requirements of the spring 30.

[0077] The use process of the display module spring structure provided by the utility model is as follows:

[0078] The PCB board 10 is sleeved on the stud 2 through the through hole 10, and then the spring 10 is sleeved on the stud 2, the upper section 31 in the spring 10 is pressed to place it into the inner side of the support section 40, and then the spring 30 is rotated ninety degrees, so that the upper section 31 is engaged with the corresponding groove, thereby completing the assembly of the spring 30. Similarly, the spring 30 is pressed to rotate it ninety degrees in the opposite direction, and the spring 30 is disassembled, so that the PCB 10 can be quickly taken out for the convenience of the operator to perform maintenance.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A display module spring structure, comprising a backlight iron frame (1), characterized in that: It includes: A stud (2) connected to the backlight iron frame (1) for mounting the PCB board (10); A through hole (11) is formed on the PCB board (10) and is used to expose the stud (2); An elastic member (3) disposed between the stud (2) and the PCB board (10) and used to form an elastic support for the PCB board (10); A positioning member (4) is arranged on the stud (2) and is used to cooperate with the elastic member (3) to achieve rapid disassembly and assembly of the PCB board (10).

2. The display module spring structure according to claim 1, characterized in that: The positioning member (4) is a support section (40) formed on the surface of the stud (2) close to the PCB board (10), and a support space (44) for accommodating the elastic member (3) is formed at one end of the support section (40) facing the PCB board (10).

3. The display module spring structure according to claim 2, characterized in that: The PCB board (10) is provided with a copper sheet (12) at the edge of the through hole (11) for supporting the bottom of the elastic member (3) so as to prevent the elastic member (3) from directly contacting the PCB board (10).

4. The display module spring structure according to claim 3, characterized in that: The elastic member (3) is a spring (30).

5. The display module spring structure according to claim 4, characterized in that: The spring (30) comprises an upper section (31), a middle section (32) and a lower section (33); The upper section (31), the middle section (32) and the lower section (33) are connected end to end in sequence to form a spring (30).

6. The display module spring structure according to claim 5, characterized in that: Both sides of the support section (40) have passing arc surfaces (41), and the other two sides have locking planes (42); the opening of the upper section body (31) in the spring (30) is adapted to the support section (40) so as to pass through the passing arc surfaces (41) and the locking planes (42); The outer diameter of the lower section body (33) is larger than that of the upper section body (31) and is compatible with the copper sheet (12).

7. The display module spring structure according to claim 6, characterized in that: Both sides of the bottom of the support section (40) are provided with grooves (43), and the grooves (43) are adapted to the top of the upper section (31), so that the elastic force support of the elastic member (3) itself can enable the upper section (31) and the grooves (43) to form a snap-fit ​​state; The groove (43) and the locking plane (42) are perpendicular to each other.

8. The display module spring structure according to claim 2, characterized in that: An auxiliary unit (5) is installed on the support section (40), and pressing the auxiliary unit (5) along the height direction of the stud (2) can drive the elastic member (3) to retract and rotate, thereby enabling the PCB board (10) to be disassembled and assembled.

9. The display module spring structure according to claim 8, characterized in that: The auxiliary unit (5) comprises a track (50) fixed to the top of the support section (40) and a slider (51) slidably arranged in the track (50), and a pressing arm (52) is hingedly connected inside the slider (51) via a damping shaft.

10. The display module spring structure according to claim 9, characterized in that: The pressing arm (52) has expansion surfaces (53) on both sides, and a guide frame (54) is fixed on the inner side of the track (50) for passing through the top end of the stud (2) to form an assembly on the support section (40).

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