A dual screen product assembly method

Abstract

The present invention discloses a dual-screen product assembly method, comprising the following steps: S1, providing a panel and a back cover; S2, assembling the back cover to the back of the panel; S3, assembling a PCB circuit board assembly to the back of the panel: the PCB circuit board assembly comprises an instrument PCB circuit board assembly and an entertainment PCB circuit board assembly, and the instrument PCB circuit board assembly and the entertainment PCB circuit board assembly are respectively locked to the inside of a first perimeter bone and a second perimeter bone by PCB screws; S4, assembling a mounting bracket assembly to the back of the panel: the mounting bracket assembly comprises an instrument mounting bracket assembly and an entertainment mounting bracket assembly, and the instrument mounting bracket assembly and the entertainment mounting bracket assembly are respectively arranged behind the instrument PCB circuit board assembly and the entertainment PCB circuit board assembly, and the instrument mounting bracket assembly and the entertainment mounting bracket assembly are respectively locked to the outside of the first perimeter bone and the second perimeter bone by bracket screws. The steps of the present invention are reasonably designed and effectively avoid the formation of abnormal noise.

Description

Technical Field

[0001] The present invention relates to the technical field of dual screens, and in particular to a novel dual screen product assembly method. Background Art

[0002] As users' tastes improve, their requirements for car interiors are also constantly increasing. In recent years, more and more OEMs have adopted multi-screen design solutions on their central consoles, among which dual screens are particularly mainstream. Dual screens usually physically connect the instrument screen and the entertainment screen to form an integrated whole, so that the overall interior appears upscale.

[0003] Dual screens have become a new product form. For OEM suppliers, the assembly method of dual screens still remains the same as that of a single screen, which is assembled according to the layout order of its spatial structure, such as Figure 1 This is the front view of a common dual-screen product. Figure 2 This is the back view of a common dual-screen product. Figure 3 This is an exploded view of a common dual-screen product. Figure 3 It can be seen that the structural layout of the dual-screen product is, from front to back, the existing touch display module (1), the existing adhesive (2), the existing panel (3), the existing PCB circuit board assembly (4), the existing mounting bracket (5), the existing bracket screws (6), the existing back cover assembly (7), and the existing back cover screws (8), wherein the existing adhesive (2) can be an adhesive tape or glue. Figure 1 You can see the existing touch display module (1) and the existing panel (3) on the front of the dual-screen product. Figure 2 It can be seen that the existing mounting bracket (5), the existing back cover assembly (7), the existing back cover screws (8), and other components, the existing adhesive (2), the existing PCB circuit board assembly (4), and the existing bracket screws (6) are enclosed in the interior of the dual-screen product, and are located inside the existing touch display module (1), the existing panel (3), and the existing back cover assembly (7).

[0004] The above-mentioned traditional dual-screen product is assembled according to the spatial layout position. The entire product is assembled with the existing panel (3) as the main body. Other components are assembled to the existing panel (3) from the front or back of the existing panel (3) in sequence. The entire product is assembled in the corresponding assembly line. The specific assembly sequence is as follows:

[0005] Step 1: Pre-process the existing panel (3): such as cleaning it and placing it on a fixture;

[0006] Step 2: attaching double-sided tape or applying glue to the front of the existing panel (3), mainly for bonding the existing touch display module (1);

[0007] Step 3: Using a screen sticking device or a manual adsorption jig to stick the existing touch display module (1) onto the front of the existing panel (3);

[0008] Step 4: Place a pressure-retaining cover plate on the existing touch display module (1) and leave it there for a while so that the tape or glue can establish a sticky connection between the panel and the touch display module;

[0009] Step 5: Turn the assembled existing panel (3) and the existing touch display module (1) over to the back, attach the existing PCB circuit board assembly (4) to the existing buckle (9) on the back of the existing panel (3), and plug the cable on the existing touch display module (1) into the corresponding socket, as shown in FIG. Figure 4 As shown;

[0010] Step 6: Then assemble the existing mounting bracket (5), overlap the existing mounting bracket (5) to the existing PCB circuit board assembly (4), and insert a plurality of existing bracket screws (6) through the screw through holes of the existing PCB circuit board assembly (4) and lock them to the screw posts on the back of the existing panel (3), as shown in FIG. Figure 5 shown.

[0011] Step 7: Finally, assemble the existing rear cover assembly (7). The edge of the existing rear cover assembly (7) has a number of clips that are snapped into the panel slots, and a number of existing rear cover screws (8) are fastened to the existing rear cover assembly (7). These existing rear cover screws (8) pass through the rear cover screw holes and are fastened to the corresponding screw flange holes of the existing mounting bracket (5).

[0012] Technical problems (technical defects) existing in the above background technology:

[0013] 1. The most important and critical technical issues:

[0014] The components of the dual-screen product are assembled according to the order of their spatial layout. The product is composed of multiple components stacked up and then screwed in. This is very common for dual-screen products installed on the center console and exposed to sunlight. The internal temperature is very high. When the owner turns on the air conditioner, the temperature in the car drops sharply. The direct hard contact between the stacked components can easily cause abnormal noise.

[0015] In the dual-screen product, except for the existing touch display module (1) which is fixed to the existing panel (3) from the front, the other components are assembled from the back and fixed to the existing panel (3) by screws.

[0016] 2. Secondary issues:

[0017] The existing panel (3) and the existing back cover assembly (7) are made of plastic material, which has a large thermal expansion coefficient and a large size contraction at high and low temperatures. When the temperature is restored from high temperature to normal temperature, the existing panel (3) and the existing back cover assembly (7) both produce a large displacement, creating conditions for relative movement. In addition, the existing panel (3) and the existing back cover assembly (7) are in hard contact, which results in different degrees of abnormal noise.

[0018] The existing mounting bracket (5) is made of metal and has different thermal expansion coefficients from the existing PCB circuit board assembly (4), the existing back cover assembly (7), and the existing panel (3) that cooperate with it, and abnormal noise is easily generated at the interface between them. Summary of the invention

[0019] The purpose of the present invention is to provide a novel dual-screen product assembly method to solve the technical problem of abnormal noise in the traditional dual-screen product assembly solution.

[0020] In order to achieve the above object, the technical solution of the present invention provides a novel dual-screen product assembly method, comprising the following steps:

[0021] S1. Provide a panel and a back cover: the left and right sides of the back of the panel are respectively provided with a first perimeter bone and a second perimeter bone, and the left and right sides of the back cover are respectively provided with a first opening and a second opening;

[0022] S2, assembling the back cover to the back of the panel: the back cover is fastened to the back of the panel by means of back cover screws, and the first peripheral rib and the second peripheral rib correspond to the positions of the first opening and the second opening respectively;

[0023] S3, assembling the PCB circuit board assembly to the back of the panel: the PCB circuit board assembly includes an instrument PCB circuit board assembly and an entertainment PCB circuit board assembly, and the instrument PCB circuit board assembly and the entertainment PCB circuit board assembly are respectively fixed to the inside of the first perimeter bone and the second perimeter bone by PCB screws;

[0024] S4. Assemble the mounting bracket assembly to the back of the panel: the mounting bracket assembly includes an instrument mounting bracket assembly and an entertainment mounting bracket assembly, and the instrument mounting bracket assembly and the entertainment mounting bracket assembly are respectively arranged behind the instrument PCB circuit board assembly and the entertainment PCB circuit board assembly, and the instrument mounting bracket assembly and the entertainment mounting bracket assembly are respectively locked to the outside of the first perimeter frame and the second perimeter frame by bracket screws.

[0025] Further,

[0026] In step S1: the panel is provided with positioning holes, limiting grooves and clamping grooves which are through from front to back, and the front of the rear cover is provided with positioning columns, limiting bones and buckles which protrude forward;

[0027] In step S2: the positioning column and the limiting bone are respectively assembled forward with the positioning hole and the limiting groove, and the buckle is engaged forward with the groove.

[0028] Further,

[0029] In step S1: the panel is provided with a first screw hole extending from front to back, and the front of the rear cover is provided with a first screw column protruding forward;

[0030] In step S2: the rear cover screw passes backward through the first screw hole and is locked onto the first screw column;

[0031] The following steps are provided between step S2 and step S3:

[0032] S2.2. Apply adhesive on the front side of the panel: the adhesive coating track passes through the positioning hole, the limiting groove, the clamping groove, and the first screw hole, so that the adhesive flows into the positioning hole, the limiting groove, the clamping groove, and the first screw hole.

[0033] Further,

[0034] In step S1: an instrument installation area and an entertainment installation area are respectively provided on the left and right sides of the front of the panel, and the positioning holes, the limit slots, the card slots, and the first screw holes are provided at the edges of the instrument installation area and the entertainment installation area;

[0035] In step S2.2: the coating track of the adhesive extends along the edge direction of the instrument installation area and the entertainment installation area;

[0036] The following steps are provided between step S2.2 and step S3:

[0037] S2.3. Attach the touch display module to the front of the panel: the touch display module includes an instrument display screen and an entertainment display screen, and the instrument display screen and the entertainment display screen are respectively fixed to the instrument installation area and the entertainment installation area by adhesive.

[0038] Further,

[0039] In step S2: first, the positioning column, the limiting bone, and the buckle are respectively matched forward with the positioning hole, the limiting groove, and the clamping groove, and then the assembly formed by the panel and the rear cover is placed on the screw locking fixture, and then the rear cover screw is passed backward through the first screw hole to be locked on the first screw column;

[0040] In step S2.2: using a dispensing device to apply adhesive to the front side of the panel according to a set coating track;

[0041] In step S2.3: using a screen sticking device or a manual adsorption jig to stick the instrument display screen and the entertainment display screen to the instrument installation area and the entertainment installation area respectively;

[0042] The following steps are provided between steps S2 and S2.2:

[0043] S2.1. Transfer to the glue dispensing screen pasting fixture: transfer the assembly consisting of the panel and the back cover to the glue dispensing screen pasting fixture.

[0044] Further,

[0045] The following steps are provided between steps S2.3 and S3:

[0046] S2.4. Placing a pressure-maintaining cover plate: placing a pressure-maintaining cover plate on the touch display module and leaving it still for a period of time so that the adhesive can establish a sticky connection between the panel and the touch display module;

[0047] S2.5. Turn over to the back: turn over the assembly consisting of the touch display module, the panel and the back cover to the back.

[0048] Further,

[0049] In step S1: a hollow structure penetrating backwards into the first perimeter bone is provided in the instrument installation area, and a through hole penetrating backwards into the second perimeter bone is provided in the entertainment installation area;

[0050] In step S3: plug the flat cable on the instrument display screen backward through the hollow structure to the socket of the instrument PCB circuit board assembly, and plug the flat cable on the entertainment display screen backward through the through hole to the socket of the entertainment PCB circuit board assembly.

[0051] Further,

[0052] In step S3: first assemble the PCB circuit board assembly to the back of the panel, then plug the flat cable on the touch display module into the corresponding socket of the PCB circuit board assembly, and then lock the PCB screw through the second screw hole of the PCB circuit board assembly to the second screw column on the back of the panel.

[0053] Further,

[0054] In step S1: a plurality of buffer parts are also provided on the front of the back cover to achieve buffering when the back cover is pressed against the panel;

[0055] In step S4: firstly assemble the mounting bracket assembly onto the panel from the back of the panel, the mounting bracket assembly does not directly contact the PCB circuit board assembly, and then lock the bracket screw through the third screw hole of the mounting bracket assembly to the third screw column on the back of the panel;

[0056] The following steps are provided between steps S1 and S2: S1.1, pre-processing the panel.

[0057] Furthermore, in step S1: the panel is made of metal, and the back cover is made of plastic.

[0058] In summary, the technical solution of the present invention has the following beneficial effects: the steps of the present invention are reasonably designed. (1) Since the back cover, PCB circuit board assembly and mounting bracket assembly of the present invention are assembled and screwed with the panel respectively, this is different from the conventional dual-screen product structure solution in which the existing back cover, existing PCB circuit board assembly and existing mounting bracket are assembled with the existing panel in multiple layers and then screwed with the screws. Independent assembly and screwing with the screws can effectively prevent the difference in thermal expansion coefficients of the materials, thereby avoiding the shrinkage of parts under high and low temperatures to form relative movement, thereby avoiding the formation of abnormal noise. (2) Since the back cover of the present invention and the panel are first positioned with positioning columns and limit bones, and pre-fixed with buckles, and then the back cover screws are screwed to the first screw column of the back cover from the front of the panel, and finally the adhesive is applied to the positioning hole, limit groove, card slot and first screw hole of the panel, the fluidity and viscoelasticity of the adhesive are utilized to fill the gaps between the structural parts, thereby achieving the effect of bonding, shockproof and abnormal noise prevention. (3) Since the panel of the present invention is made of metal material, and the thermal expansion coefficient of metal material is one order of magnitude smaller than that of plastic material, its size hardly changes at high and low temperatures. In addition, the structural strength of the metal panel is also higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a front view structural diagram of an existing dual-screen product;

[0060] Figure 2 It is a schematic diagram of the rear view structure of the existing dual-screen product;

[0061] Figure 3 This is a schematic diagram of the exploded structure of the existing dual-screen product;

[0062] Figure 4 It is a schematic diagram of the rear view structure of an existing panel of an existing dual-screen product when assembling an existing PCB circuit board assembly;

[0063] Figure 5 It is a schematic diagram of the rear view structure of an existing panel of an existing dual-screen product when assembled with an existing mounting bracket;

[0064] Figure 6 It is a schematic diagram of the steps of the present invention;

[0065] Figure 7 It is a schematic diagram of the explosion structure of the present invention;

[0066] Figure 8 It is a schematic diagram of the exploded structure of the panel and the back cover of the present invention;

[0067] Fig. 9is a front view structural schematic diagram of the panel of the present invention when assembled with a rear cover;

[0068] Fig.10 yes Fig. 9 A partial enlarged view of the middle A area;

[0069] Fig.11 It is a schematic diagram of the rear view structure of the panel of the present invention when the PCB circuit board assembly is assembled;

[0070] Fig.12 yes Fig.11 A partial enlarged view of the middle B area;

[0071] Fig.13 yes Fig.11 A partial enlarged view of the middle C area;

[0072] Fig.14 is a schematic diagram of the rear view structure of the panel of the present invention when the mounting bracket assembly is assembled;

[0073] Fig.15 yes Fig.14 A partial enlarged view of the D area in the middle;

[0074] Fig.16 yes Fig.14 A partial enlarged view of the middle E area;

[0075] Description of reference numerals: 1-existing touch display module, 2-existing adhesive, 3-existing panel, 4-existing PCB circuit board assembly, 5-existing mounting bracket, 6-existing bracket screw, 7-existing back cover assembly, 8-existing back cover screw, 9-existing buckle; 10-touch display module, 101-instrument display screen, 102-entertainment display screen; 20-adhesive; 30-panel, 31-conductive foam, 301-first perimeter bone, 302-second perimeter bone, 303-positioning hole, 304-limiting groove, 305-card slot, 306-positioning hole, 307-limiting groove, 308-card slot, 309-positioning hole, 310-positioning hole, 311-positioning hole, 312-positioning hole, 313-positioning hole, 314-positioning hole, 315-positioning hole, 316-positioning hole, 317-positioning hole, 318-positioning hole, 319-positioning hole, 320-positioning hole, 321-positioning hole, 322-positioning hole, 323-positioning hole, 324-positioning hole, 325-positioning hole, 326-positioning hole, 327-positioning hole, 328-positioning hole, 329-positioning hole, 330-positioning hole, 331-positioning hole, 332-positioning hole, 333-positioning hole, 334-positioning hole, 335-positioning hole, 336-positioning hole, 337-positioning hole, 338-positioning hole, 339-positioning hole, 340-positioning hole, 34 06-first screw hole, 307-instrument installation area, 308-entertainment installation area, 309-hollow structure, 3010-through hole; 40-back cover, 41-buffer part, 401-first opening, 402-second opening; 50-back cover screw; 60-PCB circuit board assembly, 601-instrument PCB circuit board assembly, 602-entertainment PCB circuit board assembly; 70-PCB screw; 80-mounting bracket assembly, 801-instrument mounting bracket assembly, 802-entertainment mounting bracket assembly; 90-bracket screw. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0077] In the present invention, for a clearer description, the following explanation is made: the observer faces the attached Figure 7 For observation, the lower left side of the observer is set as the front, the upper right side of the observer is set as the back, the upper left side of the observer is set as the left, the lower right side of the observer is set as the right, the upper side of the observer is set as the bottom, and the lower side of the observer is set as the top. It should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom", etc. in the text indicate the orientation or position relationship based on the orientation or position relationship set in the accompanying drawings, which is only for the convenience of clearly describing the present invention, and does not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, so it cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0078] See also Figures 6 to 16 This embodiment provides a novel dual-screen product assembly method, comprising the following steps:

[0079] S1. Provide a panel 30 and a back cover 40: a first rib 301 and a second rib 302 are respectively provided on the left and right sides of the back of the panel 30, and a first opening 401 and a second opening 402 are respectively provided on the left and right sides of the back of the back cover 40;

[0080] S2. Assemble the back cover 40 to the back of the panel 30: The back cover 40 is fastened to the back of the panel 30 by means of the back cover screws 50, and the first peripheral bone 301 and the second peripheral bone 302 correspond to the positions of the first opening 401 and the second opening 402 respectively;

[0081] S3, assembling the PCB circuit board assembly 60 to the back of the panel 30: the PCB circuit board assembly 60 includes an instrument PCB circuit board assembly 601 and an entertainment PCB circuit board assembly 602, and the instrument PCB circuit board assembly 601 and the entertainment PCB circuit board assembly 602 are respectively fixed to the inside of the first perimeter frame 301 and the second perimeter frame 302 by PCB screws 70;

[0082] S4. Assemble the mounting bracket assembly 80 to the back of the panel 30: The mounting bracket assembly 80 includes an instrument mounting bracket assembly 801 and an entertainment mounting bracket assembly 802. The instrument mounting bracket assembly 801 and the entertainment mounting bracket assembly 802 are respectively arranged behind the instrument PCB circuit board assembly 601 and the entertainment PCB circuit board assembly 602. The instrument mounting bracket assembly 801 and the entertainment mounting bracket assembly 802 are respectively locked to the outside of the first perimeter frame 301 and the second perimeter frame 302 by bracket screws 90. Function: Since the rear cover, PCB circuit board assembly and mounting bracket assembly of the present invention are respectively assembled with the panel and locked with screws, this is different from the existing rear cover, existing PCB circuit board assembly and existing mounting bracket of the traditional dual-screen product structure solution and the existing panel are assembled in multiple layers and then locked with screws. Independent assembly and locking of screws can effectively prevent the difference in thermal expansion coefficients of materials, thereby avoiding the contraction of parts under high and low temperatures to form relative movement, thereby avoiding the formation of abnormal noise. The rear cover mainly plays a protective and decorative function.

[0083] Specifically,

[0084] In step S1: the panel 30 is provided with a positioning hole 303, a limiting groove 304, and a clamping groove 305 which are through from front to back, and the front of the rear cover 40 is provided with a positioning column, a limiting bone, and a buckle which protrude forward;

[0085] In step S2: the positioning column and the limiting bone are respectively assembled with the positioning hole 303 and the limiting groove 304, and the buckle is engaged with the clamping groove 305. Function: The rear cover is accurately positioned and assembled to the panel through the positioning column and the limiting bone to ensure that the rear cover is in the correct position and the gap with the panel is uniform. The buckle of the rear cover is pre-fixed with the panel, so that the rear cover will not fall off when the assembly composed of the panel and the rear cover is transported.

[0086] Specifically,

[0087] In step S1: a first screw hole 306 is provided on the panel 30 and extends through the panel 30 from front to back, and a first screw column protruding forward is provided on the front of the rear cover 40;

[0088] In step S2: the rear cover screw 50 passes through the first screw hole 306 backwards and is locked onto the first screw column;

[0089] The following steps are provided between step S2 and step S3:

[0090] S2.2, apply adhesive 20 on the front of the panel 30: the coating track of the adhesive 20 passes through the positioning hole 303, the limiting groove 304, the card slot 305, and the first screw hole 306, so that the adhesive 20 flows into the positioning hole 303, the limiting groove 304, the card slot 305, and the first screw hole 306. Function: Since the back cover and the panel of the present invention are first positioned with positioning columns and limiting bones, pre-fixed with buckles, and then the back cover screws are locked to the first screw column of the back cover from the front of the panel, and finally the adhesive is applied to the positioning holes, limiting grooves, card slots and first screw holes of the panel, the adhesive uses the fluidity and viscoelasticity of the adhesive to fill the gaps between the structural parts, so as to achieve the effect of bonding, shockproofing and abnormal noise prevention. The adhesive can be a structural glue, which uses the fluidity and viscoelasticity of the glue to fill the gaps between the structural parts, so as to achieve the effect of bonding, shockproofing and abnormal noise prevention. It should be noted that when the adhesive solidifies (the adhesive is still elastic in this state), it can play a fixing function at the filling adhesive.

[0091] Specifically,

[0092] In step S1: the left and right sides of the front side of the panel 30 are respectively provided with an instrument installation area 307 and an entertainment installation area 308, and the positioning hole 303, the limiting groove 304, the card slot 305, and the first screw hole 306 are provided at the edges of the instrument installation area 307 and the entertainment installation area 308;

[0093] In step S2.2: the coating track of the adhesive 20 extends along the edge direction of the instrument installation area 307 and the entertainment installation area 308; Function: the coating track is extended in this way to provide bonding force for the dual-screen bonding area to bond and fix the touch display module 10.

[0094] The following steps are provided between step S2.2 and step S3:

[0095] S2.3, attach the touch display module 10 to the front of the panel 30: The touch display module 10 includes an instrument display screen 101 and an entertainment display screen 102, which are respectively fixed to the instrument installation area 307 and the entertainment installation area 308 by adhesive 20. Since the first assembly step of the back cover and the panel is the key assembly process of this case, the back cover is located at the back of the panel in terms of spatial position, but the connection is achieved from the front of the panel, so the assembly sequence of the touch display module 10 needs to be after the assembly sequence of the back cover. More specifically, the touch display module 10 includes a touch cover plate and the instrument display screen 101 and the entertainment display screen 102 behind it.

[0096] Specifically,

[0097] In step S2: first, the positioning column, the limiting bone, and the buckle are respectively moved forward to match with the positioning hole 303, the limiting groove 304, and the locking groove 305, and then the assembly formed by the panel 30 and the rear cover 40 is placed on the screw locking fixture, and then the rear cover screw 50 is passed backward through the first screw hole 306 to be locked on the first screw column;

[0098] In step S2.2: using a dispensing device to apply adhesive 20 to the front side of the panel 30 according to a set coating track;

[0099] In step S2.3: the instrument display screen 101 and the entertainment display screen 102 are respectively attached to the instrument installation area 307 and the entertainment installation area 308 using a screen attaching device or a manual adsorption jig; Note: the screen attaching jig can ensure that the gap between the touch display module and the panel is uniform;

[0100] The following steps are provided between steps S2 and S2.2:

[0101] S2.1. Transfer to a glue-dispensing screen-attaching fixture: transfer the assembly formed by the panel 30 and the back cover 40 to a glue-dispensing screen-attaching fixture.

[0102] Specifically,

[0103] The following steps are provided between steps S2.3 and S3:

[0104] S2.4. Placing a pressure-maintaining cover plate: placing a pressure-maintaining cover plate on the touch display module 10 and leaving it there for a while so that the adhesive 20 can establish a sticky connection between the panel 30 and the touch display module 10;

[0105] S2.5, turning over to the back: turning over the assembly formed by the touch display module 10, the panel 30 and the back cover 40 to the back.

[0106] Specifically,

[0107] In step S1: a hollow structure 309 is provided in the instrument installation area 307 and extends backwards into the first peripheral bone 301, and a through hole 3010 is provided in the entertainment installation area 308 and extends backwards into the second peripheral bone 302;

[0108] In step S3: the flat cable on the instrument display screen 101 is plugged backward through the hollow structure 309 to the socket of the instrument PCB circuit board assembly 601, and the flat cable on the entertainment display screen 102 is plugged backward through the through hole 3010 to the socket of the entertainment PCB circuit board assembly 602.

[0109] Specifically,

[0110] In step S3: first, assemble the PCB circuit board assembly 60 to the back of the panel 30, then plug the flat cable on the touch display module 10 into the corresponding socket of the PCB circuit board assembly 60, and then lock the PCB screw 70 through the second screw hole of the PCB circuit board assembly 60 to the second screw column on the back of the panel 30.

[0111] Specifically,

[0112] In step S1: the front of the back cover 40 is also provided with a plurality of buffer parts 41 to achieve buffering when the back cover 40 and the panel 30 are pressed; Function: By providing the buffer parts, when the back cover is assembled with the panel from the back of the panel, the abnormal sound caused by direct contact can be avoided, so the buffer parts can effectively prevent abnormal sound. Preferably, the material of the buffer parts 41 can be buffer foam or double-sided tape, etc., which can effectively prevent shock on the one hand, and can also reduce the overall thickness of the dual screen on the other hand to achieve thinness.

[0113] In step S4: firstly, the mounting bracket assembly 80 is assembled onto the panel 30 from the back of the panel 30, the mounting bracket assembly 80 is not in direct hard contact with the PCB circuit board assembly 60, and then the bracket screw 90 is passed through the third screw hole of the mounting bracket assembly 80 and locked onto the third screw column at the back of the panel 30;

[0114] The following steps are provided between step S1 and step S2: S1.1, pre-processing the panel 30. Pre-processing: such as cleaning, attaching a conductive foam 31 to the front of the panel.

[0115] Specifically,

[0116] In step S1: the panel 30 is made of metal, and the back cover 40 is made of plastic. Function: Since the panel of the present invention is made of metal, and the thermal expansion coefficient of metal is one order of magnitude smaller than that of plastic, the size hardly changes at high and low temperatures. In addition, the structural strength of the metal panel is also higher. Preferably, the metal material of the panel can be magnesium alloy, aluminum alloy, etc., and can be formed by die-casting process.

[0117] To sum up, the assembly method of the present invention takes the panel as the main body, and for the first time adopts the method of assembling the back cover first, and connecting the back cover to the panel by means of buckles, screws and coating adhesives, which can effectively prevent abnormal noise between the back cover and the panel, and then fit the touch display component that realizes the dual-screen function to the front of the panel, and finally assemble the PCB circuit board assembly and the mounting bracket assembly on the back of the panel and lock several screws respectively.

[0118] Specifically, the technical effects are as follows:

[0119] (1) The back cover is assembled from the back of the panel, positioned using the positioning posts and limit bones of the back cover, and then snapped onto the panel using the buckles. Several screws are then fastened from the front of the panel. Finally, adhesive is applied to the front of the panel and filled into the positioning grooves, limit grooves, and screw grooves of the panel. The positioning posts, limit bones, and screws of the back cover are bonded together to effectively prevent shock and abnormal noise.

[0120] (2) The panel is made of metal with high strength. The PCB circuit board assembly, back cover, and mounting bracket assembly are all independently fixed to the panel with screws, which can effectively prevent abnormal noise.

[0121] The present invention fully utilizes the front and back structural features of the panel, matches the back cover to the back of the panel, fixes the back cover from the front of the panel, fits and fixes the touch display module to the front of the panel, and screws the PCB circuit board assembly to the internal screw column of the perimeter frame on the back of the panel. The mounting bracket assembly is also screwed to the external screw column of the perimeter frame on the back of the panel. The back cover, PCB circuit board assembly, and mounting bracket assembly are all fixed to the panel by independent screws, and the touch display module is fixed to the panel by glue, so that the panel is used as the main body part, and the components are independently installed and fixed to the panel body. This structural scheme can effectively prevent the generation of abnormal noise between these parts, and eliminate the abnormal noise in the design scheme.

[0122] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A dual screen product assembly method, characterized in that: The following steps are involved: S1. Providing a panel (30) and a back cover (40): a first peripheral bone (301) and a second peripheral bone (302) are respectively provided on the left and right sides of the back of the panel (30), and a first opening (401) and a second opening (402) are respectively provided on the left and right sides of the back of the back cover (40); S2, assembling the back cover (40) to the back of the panel (30): the back cover (40) is fastened to the back of the panel (30) by means of a back cover screw (50), and the first peripheral bone (301) and the second peripheral bone (302) correspond to the positions of the first opening (401) and the second opening (402), respectively; S3, assembling the PCB circuit board assembly (60) to the back of the panel (30): the PCB circuit board assembly (60) comprises an instrument PCB circuit board assembly (601) and an entertainment PCB circuit board assembly (602); the instrument PCB circuit board assembly (601) and the entertainment PCB circuit board assembly (602) are respectively fixed to the inside of the first peripheral frame (301) and the second peripheral frame (302) by means of PCB screws (70); S4, assembling the mounting bracket assembly (80) to the back of the panel (30): the mounting bracket assembly (80) comprises an instrument mounting bracket assembly (801) and an entertainment mounting bracket assembly (802); the instrument mounting bracket assembly (801) and the entertainment mounting bracket assembly (802) are respectively arranged behind the instrument PCB circuit board assembly (601) and the entertainment PCB circuit board assembly (602); the instrument mounting bracket assembly (801) and the entertainment mounting bracket assembly (802) are respectively locked to the outside of the first peripheral frame (301) and the second peripheral frame (302) by bracket screws (90); In step S1: the panel (30) is provided with a positioning hole (303), a limiting groove (304), and a clamping groove (305) extending from front to back, and the front surface of the rear cover (40) is provided with a positioning column, a limiting bone, and a buckle protruding forward; In step S2: the positioning column and the limiting bone are assembled forwardly with the positioning hole (303) and the limiting groove (304) respectively, and the buckle is engaged forwardly with the groove (305); In step S1: a first screw hole (306) is provided on the panel (30) and extends through the panel from front to back, and a first screw column protruding forward is provided on the front surface of the rear cover (40); In step S2: the rear cover screw (50) passes backward through the first screw hole (306) and is locked onto the first screw column; The following steps are provided between step S2 and step S3: S2.2, applying adhesive (20) on the front side of the panel (30): the coating track of the adhesive (20) passes through the positioning hole (303), the limiting groove (304), the clamping groove (305), and the first screw hole (306), so that the adhesive (20) flows into the positioning hole (303), the limiting groove (304), the clamping groove (305), and the first screw hole (306); In step S1: an instrument installation area (307) and an entertainment installation area (308) are respectively provided on the left and right sides of the front surface of the panel (30), and the positioning hole (303), the limiting groove (304), the card slot (305), and the first screw hole (306) are provided at the edges of the instrument installation area (307) and the entertainment installation area (308); In step S2.2: the coating track of the adhesive (20) extends along the edge direction of the instrument installation area (307) and the entertainment installation area (308); The following steps are provided between step S2.2 and step S3: S2.

3. Attaching the touch display module (10) to the front side of the panel (30): the touch display module (10) comprises an instrument display screen (101) and an entertainment display screen (102); the instrument display screen (101) and the entertainment display screen (102) are respectively bonded and fixed to the instrument installation area (307) and the entertainment installation area (308) by means of an adhesive (20).

2. According to claim 1, a dual-screen product assembly method is characterized in that: In step S2: first, the positioning column, the limiting bone and the buckle are respectively moved forward to match with the positioning hole (303), the limiting groove (304) and the locking groove (305), and then the assembly formed by the panel (30) and the rear cover (40) is placed on the screw locking fixture, and then the rear cover screw (50) is passed backward through the first screw hole (306) and locked onto the first screw column; In step S2.2: using a dispensing device to apply the adhesive (20) to the front surface of the panel (30) according to a set coating trajectory; In step S2.3: using a screen sticking device or a manual adsorption jig to stick the instrument display screen (101) and the entertainment display screen (102) to the instrument installation area (307) and the entertainment installation area (308) respectively; The following steps are provided between steps S2 and S2.2: S2.

1. Transferring to a glue-dispensing screen-attaching fixture: transferring the assembly formed by the panel (30) and the back cover (40) to a glue-dispensing screen-attaching fixture.

3. According to claim 2, a dual-screen product assembly method is characterized in that: The following steps are provided between steps S2.3 and S3: S2.4, placing a pressure-maintaining cover plate: placing a pressure-maintaining cover plate on the touch display module (10) and leaving it there for a period of time so that the adhesive (20) can establish a sticky connection between the panel (30) and the touch display module (10); S2.5, turning over to the back: turning over the assembly formed by the touch display module (10), the panel (30) and the back cover (40) to the back.

4. A dual-screen product assembly method according to any one of claims 1 to 3, characterized in that: In step S1: the instrument installation area (307) is provided with a hollow structure (309) that penetrates backwards into the first peripheral bone (301), and the entertainment installation area (308) is provided with a through hole (3010) that penetrates backwards into the second peripheral bone (302); In step S3: the flat cable on the instrument display screen (101) is plugged backward through the hollow structure (309) to the socket of the instrument PCB circuit board assembly (601), and the flat cable on the entertainment display screen (102) is plugged backward through the through hole (3010) to the socket of the entertainment PCB circuit board assembly (602).

5. A dual-screen product assembly method according to any one of claims 1 to 3, characterized in that: In step S3: first, the PCB circuit board assembly (60) is assembled onto the back of the panel (30), then the flat cable on the touch display module (10) is plugged into the corresponding socket of the PCB circuit board assembly (60), and then the PCB screw (70) is passed through the second screw hole of the PCB circuit board assembly (60) and locked onto the second screw column on the back of the panel (30).

6. A dual-screen product assembly method according to any one of claims 1 to 3, characterized in that: In step S1: a plurality of buffer parts (41) are further provided on the front side of the rear cover (40) to achieve buffering when the rear cover (40) and the panel (30) are pressed; In step S4: firstly, the mounting bracket assembly (80) is assembled onto the panel (30) from the back of the panel (30), the mounting bracket assembly (80) not being in direct hard contact with the PCB circuit board assembly (60), and then the bracket screw (90) is passed through the third screw hole of the mounting bracket assembly (80) and is locked onto the third screw column on the back of the panel (30); The following steps are provided between steps S1 and S2: S1.1, pre-processing the panel (30).

7. A dual-screen product assembly method according to any one of claims 1 to 3, characterized in that: In step S1: the panel (30) is made of metal material, and the back cover (40) is made of plastic material.

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