LCD and PCB fixing structure connected by metal clip PIN

Abstract

The utility model discloses a fixing structure for an LCD (Liquid Crystal Display) and a PCB (Printed Circuit Board) connected by a metal clip PIN, which comprises a PCB assembly and a metal clip PIN, the LCD assembly is assembled on the PCB assembly through the embedding groove to form an LCM assembly together; the metal bonding pads are distributed on the edge, close to the embedding groove, of the PCB assembly; and the metal clip PIN is clamped on the PCB assembly and is welded with the LCD assembly in parallel through the embedding groove. According to the fixing structure for the LCD and the PCB connected by the metal clip PIN, the tail part of the metal clip PIN is changed from being perpendicular to the lower glass to being parallel to the lower glass, and meanwhile, the window is formed in the area, corresponding to the metal clip PIN, of the PCB assembly, so that when the LCD assembly is assembled in the PCB assembly through the embedding groove, the metal clip PIN can be fixed to the lower glass, and the metal clip PIN can be fixed to the lower glass. Part of the LCD assembly can be contained in the embedding groove so that the overall thickness of the LCM assembly can be reduced, and meanwhile after the LCD assembly is embedded into the PCB assembly, the parallel welding tails are directly inserted into the corresponding metal welding pads so that filling welding can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of LCM, in particular to a fixing structure of an LCD and a PCB connected by a metal clip PIN. Background Art

[0002] LCM (LCD Module) refers to an assembly that assembles liquid crystal display devices, connectors, peripheral circuits such as control and drive, PCB circuit boards, backlight sources, structural parts, etc.

[0003] like Figure 1 The conventional LCM shown is mainly composed of LCD1-1 and PCB1-2. LCD1-1 is connected by metal clip PIN1-3. Metal clip PIN1-3 needs to vertically pass through PCB1-2 and be fixed by soldering on the back of PCB1-2. This structure not only makes the thickness of the entire LCM module larger, but also the welding point between the metal clip PIN1-3 and PCB1-2 is on the back of the module, which requires the terminal host to make corresponding air avoidance and protection, resulting in relatively limited actual application process. Therefore, a fixing structure of LCD and PCB connected by metal clip PIN is proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a fixing structure for LCD and PCB connected by metal clip PIN to address the above technical problems, open a window at the position of the PCB board corresponding to the LCD and change the tail of the metal clip PIN to a parallel design to reduce the overall assembly thickness of the LCD component.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A fixing structure of an LCD and a PCB connected by a metal clip PIN, comprising: a PCB assembly, wherein an embedding groove is provided on the surface of the PCB assembly for accommodating a part of the volume of the LCD assembly;

[0007] The LCD assembly is assembled on the PCB assembly through an embedding groove to form an LCM assembly;

[0008] Metal pads are located at the edges of the PCB components near the embedded slots;

[0009] The metal clip PIN is clamped on the PCB component and is welded in parallel with the LCD component through an embedded groove.

[0010] Further, the LCD assembly includes an upper polarizer, an upper glass, a lower glass and a lower polarizer;

[0011] The upper polarizer, the upper glass, the lower glass and the lower polarizer are sequentially attached together to form an LCD assembly.

[0012] Furthermore, the metal clip PIN comprises a clamp head and a solder tail, wherein the clamp head is formed with a plane end at one end relative to the solder tail, and the solder tail is vertically arranged with the plane end and formed integrally.

[0013] Furthermore, the clamp is disposed on the lower glass, and the welding tail is parallel to the lower glass leg.

[0014] Furthermore, the metal pad is U-shaped and has a welding groove therein.

[0015] Furthermore, a welding gap is formed between the side wall of the welding groove and the welding tail.

[0016] Furthermore, an insertion chamfer is formed on the top of the metal pad to guide the insertion of the metal clip PIN when the LCD component is assembled in the embedding groove.

[0017] Furthermore, a support member is provided at the bottom of the side wall of the welding groove for supporting the welding tail on the metal clip PIN after insertion.

[0018] Furthermore, the support member comprises a support body and a support platform formed on one side of the top of the support body.

[0019] Furthermore, a sloped platform is formed on the other side of the top of the support body and is transitionally connected to the support platform;

[0020] Wherein, the gap between the two bevel platforms is greater than the width of the solder tail;

[0021] The gap between the two support platforms is smaller than the width of the solder tail.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The LCD and PCB fixing structure provided by the utility model is designed to change the tail of the metal clip PIN from being perpendicular to the lower glass to being parallel to the lower glass, and at the same time, a window is opened on the PCB assembly corresponding to the metal clip PIN area, so that when the LCD assembly is assembled in the PCB assembly through the embedding groove, part of the LCD assembly can be accommodated in the embedding groove to reduce the overall thickness of the LCM assembly;

[0024] At the same time, after the LCD component is embedded in the PCB component, the parallel solder tails can be directly inserted into the corresponding metal pads to achieve filling welding. Compared with the traditional metal clip PIN, there is no need to make corresponding avoidance and protection on the terminal host, which simplifies the operator's steps and improves the convenience of terminal application;

[0025] By designing a chamfered corner in the metal pad, when the LCD component is placed in the PCB component for assembly, the solder tails on the corresponding metal clip PINs can be guided by the chamfered corners and better placed in the metal pad, reducing the difficulty of alignment. At the same time, with the setting of the support, the solder tails can be positioned after placement, so that the soldering liquid can be better filled in the welding gap to form a stable solder joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of a conventional LCM component described in the background technology of the present utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the metal clip PIN connection provided by the utility model;

[0028] Figure 3 A schematic side view of the structure of the fixing structure of the LCD and the PCB connected by the metal clip PIN provided by the utility model;

[0029] Figure 4 A partial front view structural diagram of a fixing structure of an LCD and a PCB connected by a metal clip PIN provided by the utility model;

[0030] Figure 5 A partial side structural schematic diagram of a fixing structure of an LCD and a PCB connected by a metal clip PIN provided by the utility model;

[0031] Figure 6 A schematic diagram of the embedded slot structure of the fixing structure of the LCD and PCB connected by the metal clip PIN provided by the utility model;

[0032] Figure 7 A schematic diagram of the assembly state of the fixing structure of the LCD and PCB connected by the metal clip PIN provided by the utility model;

[0033] Figure 8 The metal clip PIN provided by the utility model is used to connect the LCD and the PCB to fix the structure Figure 7 The enlarged structural diagram at A in the middle;

[0034] Fig. 9 A schematic diagram of the metal clip PIN structure of the LCD and PCB fixing structure connected by the metal clip PIN provided by the utility model;

[0035] Fig.10 A schematic diagram of a top view of a metal clip PIN structure of a fixing structure of an LCD and a PCB connected by a metal clip PIN provided by the utility model;

[0036] Fig.11This is a schematic diagram of the support structure of the fixing structure of the LCD and PCB connected by the metal clip PIN provided by the utility model.

[0037] The markings in the figure are as follows:

[0038] PCB component 1, embedding slot 11, metal pad 12;

[0039] Welding groove 120, welding gap 121, insert chamfer 122;

[0040] LCD assembly 2, upper polarizer 21, upper glass 22, lower glass 23, lower polarizer 24;

[0041] LCM component 3;

[0042] Metal clip PIN 4; chuck 41, solder tail 42, flat end 43

[0043] Support member 5 , support body 51 , support platform 52 , inclined platform 53 . 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 described in the background art, the conventional LCM module is relatively thick, and the welding point between the metal clip PIN and the PCB is on the back of the module, requiring the terminal host to make corresponding air avoidance and protection, which results in limitations in the actual application process.

[0046] In order to solve this technical problem, the utility model provides a fixing structure of an LCD and a PCB connected by a metal clip PIN, which is applied to an LCM module.

[0047] Specifically, please refer to Figure 1-Figure 11 The fixing structure of the LCD and PCB connected by the metal clip PIN specifically includes:

[0048] A PCB assembly 1, wherein an embedding groove 11 is provided on the surface of the PCB assembly 1, for accommodating a part of the volume of the LCD assembly 2;

[0049] The LCD assembly 2 is assembled on the PCB assembly 1 through the embedding groove 11 to form an LCM assembly 3;

[0050] The metal pad 12 is distributed at the edge of the PCB component 1 close to the embedding slot 11;

[0051] The metal clip PIN4 is clamped on the PCB assembly 1 and is parallelly welded with the LCD assembly 2 through the embedding groove 11.

[0052] The utility model provides a fixing structure of LCD and PCB connected by a metal clip PIN, in which the tail of the metal clip PIN4 is changed from being perpendicular to the lower glass 23 to being parallel to the lower glass 23, and a window is opened in the area corresponding to the metal clip PIN4 on the PCB component 1, so that when the LCD component 2 is assembled in the PCB component 1 through the embedding groove 11, part of the LCD component 2 can be accommodated in the embedding groove 11 to reduce the overall thickness of the LCM component 3. At the same time, after the LCD component 2 is embedded in the PCB component 1, the parallel solder tail 42 can be directly inserted into the corresponding metal solder pad 12 to achieve filling welding. Compared with the traditional metal clip PIN, there is no need to make corresponding avoidance and protection on the terminal host, which simplifies the steps of the operator and improves the convenience of terminal application.

[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 1-Figure 8 , a fixing structure of LCD and PCB connected by metal clip PIN, comprising: a PCB component 1, an embedding groove 11 is opened on the surface of the PCB component 1, used to accommodate part of the volume of the LCD component 2; the LCD component 2 is assembled on the PCB component 1 through the embedding groove 11 to form an LCM component 3 together; a metal pad 12 is distributed at the edge of the PCB component 1 close to the embedding groove 11; a metal clip PIN 4 is clamped on the PCB component 1 and parallelly welded with the LCD component 2 through the embedding groove 11;

[0058] There are multiple metal clips PIN4, which are equidistantly distributed on both sides of the LCD component 2 and are arranged corresponding to the metal pads 12 on the PCB component 1. After the LCD component 2 is assembled on the PCB component 1, the multiple metal clips PIN4 are also placed in the multiple corresponding metal pads 12 for subsequent welding operations;

[0059] like Figure 5 As shown, the LCD assembly 2 includes an upper polarizer 21, an upper glass 22, a lower glass 23 and a lower polarizer 24, and the upper polarizer 21, the upper glass 22, the lower glass 23 and the lower polarizer 24 are sequentially attached to form the LCD assembly 2;

[0060] The metal clip PIN4 has a clamping head 41 and a solder tail 42. The clamping head 41 is formed with a plane end 43 at one end relative to the solder tail 42. The solder tail 42 and the plane end 43 are vertically arranged and integrally formed. The clamping head 41 is clamped on the lower glass 23, and the solder tail 42 is parallel to the pin of the lower glass 23.

[0061] By designing the solder tail 42 to be parallel to the lower glass 23, when the LCD component 2 is placed on the PCB component 1, it is not necessary to solder on the back of the PCB component 1 as in the conventional metal clip PIN, and the corresponding terminal needs to avoid it. Instead, the soldering operation can be directly performed on the side where the LCD component 2 is embedded, which facilitates its actual assembly and use.

[0062] At the same time, the setting of the embedding groove 11 provided in this embodiment satisfies the requirement that the LCD component 2 is embedded in the PCB component 1 to realize the corresponding embedding welding between the metal clip PIN and the metal pad 12, while part of the LCD component 2 can be accommodated in the corresponding embedding groove 11, so that the overall thickness of the LCM component 3 is reduced, making its subsequent assembly and use more convenient.

[0063] Example 2

[0064] The fixing structure of the LCD and the PCB connected by the metal clip PIN provided in Example 1 is further optimized. Specifically, Figure 4 As shown, the metal pad 12 is U-shaped and has a welding groove 120 therein;

[0065] By designing the metal pad 12 in a "U-shaped" state, the solder tail 42 in the metal clip PIN4 clamped on the LCD component 2 can be placed in the metal pad 12, and after being placed, the outside of the solder tail 42 is blocked to form a certain blocking space, so as to relatively and independently separate multiple solder tails. At the same time, the soldering liquid can be partially blocked in the subsequent process of soldering the solder tail 42 with the metal pad 12, so as to ensure that the solder tail 42 and the metal pad 12 are more stably welded.

[0066] like Fig.10 As shown, as a further optimization of this embodiment: a welding gap 121 is formed between the side wall of the welding groove 120 and the solder tail 42. Through the above-mentioned structural design, a certain gap can be left for assembly during the insertion of the solder tail 42 to avoid interference with the metal pad 12 to affect the rapid assembly of the LCD component 2 and the PCB component 1. At the same time, through this gap, in the subsequent welding process, the solder liquid can be fully filled in the welding gap 121 to make the welding point between the solder tail 42 and the metal pad 12 more firm.

[0067] Example 3

[0068] The fixing structure of the LCD and the PCB connected by the metal clip PIN provided in Example 2 is further optimized, such as Fig. 9 , Fig.10 and Fig.11 As shown, the top of the metal pad 12 of the fixed structure of the LCD and the PCB connected by the metal clip PIN is formed with an insertion chamfer 122, which is used to guide the insertion of the metal clip PIN4 when the LCD component 2 is assembled in the embedding groove 11;

[0069] When the LCD 2 is specifically implemented to be assembled on the PCB assembly 1 through the embedding groove 11, the alignment space for the solder tail 42 on the metal pad 12 is increased due to the design of the embedded chamfer 122. When the solder tail 42 is embedded and assembled within the embedding range of the embedded chamfer 122, the arc surface of the embedded chamfer 122 itself can form a guiding effect, thereby promoting the solder tail 42 to slide into the corresponding metal pad 12, thereby facilitating the actual assembly difficulty of the operator.

[0070] Example 4

[0071] The fixing structure of the LCD and the PCB connected by the metal clip PIN provided in the above embodiments is further optimized, such as Fig. 9 , Fig.10 and Fig.11 As shown, a support member 5 is provided at the bottom of the side wall of the welding groove 120 for supporting the welding tail 42 on the metal clip PIN4 after insertion;

[0072] The support member 5 comprises a support body 51 and a support platform 52 formed on one side of the top of the support body 51. Through the structural setting of the support platform 52, after the LCD component 2 is assembled on the PCB component 1, the corresponding solder tail 42 can be kept in the middle position of the metal pad 12, so that the bottom of the solder tail 42 is suspended, so that when soldering, the solder liquid can better wrap the surface of the solder tail 42 and be welded to the metal pad 12 outside thereof;

[0073] As a further optimization of this embodiment: a bevel platform 53 is formed on the other side of the top of the support body 51 and is transitionally connected to the support platform 52, wherein the gap between the two bevel platforms 53 is larger than the width of the solder tail 42, and the gap between the two support platforms 52 is smaller than the width of the solder tail 42;

[0074] Due to the setting of the inclined table 53, during the placement process, the solder tail 42 is guided by the inclined table 53 and placed on the support table 52, thereby assisting the operator to determine whether the welding gap 121 is reserved in place, avoiding the situation where one side of the solder tail 42 is tightly attached to one side of the metal pad 12, causing the solder liquid to be unable to be filled.

[0075] The use process of the LCD and PCB fixing structure provided by the utility model with metal clip PIN connection is as follows:

[0076] An embedding groove 11 is opened in a local area of ​​the LCD component 2 on the PCB component 1, and then the solder tail 42 at the tail of the LCD component 2 is designed along the parallel direction of the lower glass 23, and the solder tail 42 is aligned with the metal pad 12 through the embedding groove 11 for assembly. After the assembly is completed, the solder tail 42 in the metal pad 12 is welded and fixed by soldering, thereby completing the overall assembly of the LCM component 3.

[0077] 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.

[0078] 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 fixing structure of an LCD and a PCB connected by a metal clip PIN, characterized in that: It includes: A PCB component (1), wherein an embedding groove (11) is provided on a surface of the PCB component (1) for accommodating a portion of the volume of the LCD component (2); An LCD component (2) is assembled on the PCB component (1) through an embedding groove (11) to form an LCM component (3); A metal pad (12) is distributed at an edge of the PCB component (1) close to the embedding slot (11); A metal clip PIN (4) is clamped on the PCB component (1) and is welded in parallel with the LCD component (2) through an embedding groove (11).

2. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 1, characterized in that: The LCD assembly (2) comprises an upper polarizer (21), an upper glass (22), a lower glass (23) and a lower polarizer (24); The upper polarizer (21), the upper glass (22), the lower glass (23) and the lower polarizer (24) are sequentially bonded together to form an LCD assembly (2).

3. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 2, characterized in that: The metal clip PIN (4) comprises a clamp (41) and a solder tail (42); the clamp (41) is formed with a plane end (43) at one end relative to the solder tail (42); the solder tail (42) and the plane end (43) are arranged vertically and integrally formed.

4. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 3, characterized in that: The clamp (41) is clamped on the lower glass (23), and the welding tail (42) is parallel to the protruding foot of the lower glass (23).

5. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 3, characterized in that: The metal pad (12) is U-shaped and has a welding groove (120) therein.

6. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 5, characterized in that: A welding gap (121) is formed between the side wall of the welding groove (120) and the welding tail (42).

7. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 1, characterized in that: The top of the metal pad (12) is formed with an insertion chamfer (122) for guiding the insertion of the metal clip PIN (4) when the LCD component (2) is assembled in the embedding groove (11).

8. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 5, characterized in that: A support member (5) is provided at the bottom of the side wall of the welding groove (120) for supporting the welding tail (42) on the metal clip PIN (4) after insertion.

9. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 8, characterized in that: The support member (5) comprises a support body (51) and a support platform (52) formed on one side of the top of the support body (51).

10. The fixing structure of LCD and PCB connected by metal clip PIN according to claim 9, characterized in that: The other side of the top of the support body (51) is formed with an inclined platform (53) which is transitionally connected to the support platform (52); Wherein, the gap between the two inclined platforms (53) is greater than the width of the solder tail (42); The gap between the two support platforms (52) is smaller than the width of the solder tail (42).

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