阅读说明：本技术 一种显示模组分离的装置及其方法 (Device and method for displaying module separation ) 是由 竹原尚吾 尹国飞 國柄智章 高杨 于 2021-05-21 设计创作，主要内容包括：本发明为一种显示模组分离的装置及其方法。本发明中进行分离操作前,先将分离部件调整至与所需分离显示模组的尺寸匹配的位置,将显示模组放至正确的位置,吸附平台打开并吸附固定面板,分离升降气缸缩回带动分离部件下降,再次调整分离部件位置使分离部件正好夹紧背光模组的侧边缘或者卡槽,然后分离升降气缸伸出,使得分离部件上升从而带动背光模组向远离面板的方向移动,实现面板和背光模组的分离,整体装置停止,取出面板及背光模组,装置复位并准备分离下一显示模组。相对于现有技术,本发明可方便快捷地拆解显示面板、拆解效率高、减少拆解破损率、适用场景也更广泛。(The invention relates to a device and a method for displaying module separation. Before separation operation is carried out, the separation part is adjusted to a position matched with the size of a display module to be separated, the display module is placed at a correct position, the adsorption platform is opened and adsorbs the fixed panel, the separation lifting cylinder retracts to drive the separation part to descend, the position of the separation part is adjusted again to enable the separation part to be just clamped with the side edge or the clamping groove of the backlight module, then the separation lifting cylinder extends out, the separation part rises to drive the backlight module to move in the direction far away from the panel, separation of the panel and the backlight module is achieved, the whole device stops, the panel and the backlight module are taken out, and the device resets and is ready for separating the next display module. Compared with the prior art, the display panel disassembling method has the advantages that the display panel can be disassembled conveniently and quickly, the disassembling efficiency is high, the disassembling damage rate is reduced, and the application scenarios are wider.)

1. An apparatus for displaying module separation, comprising: the adsorption platform is used for fixing the panel; a plurality of separating members for clamping side edges of the backlight module; the upper surface of the adsorption platform is perpendicular to the longitudinal axis of the separation part, the separation part is fixed on the lifting mechanism, and the lifting mechanism is used for enabling the backlight module to move towards the direction far away from the panel when the separation part just clamps the side edge of the backlight module.

2. The device of claim 1, wherein the separating elements are each a separator that is sized to fit into a slot in a side edge of the backlight module.

3. The apparatus according to claim 1, wherein the separating member comprises a separating claw and a fixing post for preventing the backlight module from being displaced.

4. The device according to claim 1, 2 or 3, wherein the two sides of the adsorption platform in the longitudinal direction are provided with moving mechanisms, and the moving mechanisms are fixed with cutters.

5. The device of claim 4, wherein the lifting mechanism comprises a separating lifting cylinder which extends and retracts vertically, and a separating arm which is connected with a piston rod of the separating lifting cylinder, and the separating component is fixed on the separating arm.

6. The apparatus of claim 5, wherein the separating lifting cylinder is taken as a symmetry axis, and at least two separating cylinders are symmetrically disposed below the separating arm, and the separating cylinders are used for assisting the separating arm to drive the separating member to pull up the backlight module when the force of the separating lifting cylinder is not enough to drive the separating member to pull up the backlight module.

7. The apparatus of claim 6, wherein the suction platform is heatable, the surface of the suction platform has partitions of display modules with different sizes, and the edge of each partition has a sealing strip; the adsorption force and the temperature of different areas of the adsorption platform can be adjusted; the surface of the adsorption platform is provided with grooves which are regularly distributed.

8. The apparatus of claim 7, wherein a platform lifting cylinder is disposed below the suction platform, and the platform lifting cylinder is used for adjusting the suction platform to a predetermined separation position.

9. The device of claim 8, wherein the separating arm is provided with a locator at one side in the transverse direction, and the locator is used for assisting the display module to locate.

10. The apparatus of claim 9, wherein the lateral position of the separating member is adjustable.

11. The apparatus of claim 10, further comprising a drive motor for driving longitudinal movement of the separating member and the positioner.

12. A method of displaying module separation, comprising:

the separating telescopic cylinder and the driving motor respectively adjust the positions of the separating parts in the transverse direction and the longitudinal direction so as to match the size of the operated display module;

placing a panel of the display module downwards in a corresponding area of the adsorption platform, and simultaneously opening the positioner and moving the positioner to a preset position to assist the display module in positioning;

after the display module is positioned, the adsorption platform adsorbs and fixes the display module;

the adsorption platform is lowered to a preset separation position, and the separation lifting cylinder retracts to drive the separation component to descend until the separation component and the side edge of the backlight module are at the same height;

the separation telescopic cylinder adjusts the position of the separation component in the transverse direction, so that the separation component just clamps the side edge of the backlight module, and the separation lifting cylinder extends out and drives the backlight module to move in the direction away from the panel;

the panel and the backlight module are successfully separated, the adsorption platform and the separation part are stopped, the panel and the backlight module are taken out, and the equipment is reset and is ready to separate the next display module.

Technical Field

The invention relates to the field of display module separation, in particular to a device and a method for display module separation.

Background

The display module comprises a panel (or called as a panel module) and a backlight module, wherein the panel comprises a display layer and a protective layer, and a frame of the backlight module is adhered with the protective layer through glue. In addition, in this application the display module is different with general display module structure, specifically: (1) the bonding positions of the panel and the backlight module are not in the same plane; (2) the thickness (gap) of the glue layer at the bonding part of the panel or the panel module and the backlight module is as follows: 0.1mm plus or minus 0.05 mm; (3) the distance between the joint of the panel and the backlight module and the ink layer is very close, and the sensors are distributed on the ink layer.

Before separating, generally can carry out the preliminary treatment to the display module assembly and make the viscidity of gluing reduce, the display module assembly of disassembling among the prior art, its used glue viscidity after freezing weakens the effect and is better than after the heating, therefore the preliminary treatment of prior art generally is freezing the display module assembly. However, some display module group used glue has no obvious change of freezing viscosity, the viscosity is weakened but the shape is not changed when the glue is heated to a certain temperature, and the adhesive force of the glue is still up to 20kg/cm even after the glue is pretreated²The adhesive having such characteristics is hereinafter referred to as "special adhesive" which will be widely used to bond the protective layer of the panel and the bezel of the backlight unit for a specific reason which will not be described in detail herein.

In summary, when the display module is abnormal and needs to be repaired, the panel and the backlight module need to be separated intact for performing the subsequent steps. However, the prior art cannot realize the separation in a state without any damage to the display module, and the method and the device for separating the display module in the prior art are as follows.

The first thinking is to cut open the glue between frame and the protective layer with artifical or automatic mode, but protective layer and frame laminating are inseparable, and the gap is very little to the very close position in laminating edge is the printing ink layer, has laid the sensor layer below it, if direct with artifical sword cutting or automatic sword cutting, all harms printing ink layer and sensor layer easily, can not realize accomplishing panel and backlight unit's separation under the state that does not have any damage to display module.

The second idea is to break the panel and the backlight module manually or automatically, such as the chinese invention application with publication number CN107498500A (hereinafter referred to as "the 00A patent"), which discloses a disassembling jig comprising an installation table with a first absorbing member for absorbing and fixing the plastic frame and a disassembling member with a second absorbing member for absorbing and fixing the display screen, wherein the disassembling member is installed on the lifting mechanism. Although set forth its can effectively promote the display screen and glue disassembling efficiency and the success rate of disassembling of frame in the patent of 00A, panel and backlight unit are hardly disassembled to absorbent mode in fact, except because glue self adhesive force, still because on-vehicle screen backlight unit surface unevenness, perhaps the unsuitable absorption scheduling problem of backlight unit material leads to unable with the absorption mode to separate display module, disassemble efficiency and disassemble the success rate and all lower.

In summary, in the field of display module separation, there is a need for a device and a method for display module separation, which can disassemble a display panel conveniently and quickly, have high disassembling efficiency, reduce disassembling breakage rate, and have wider application scenarios.

Disclosure of Invention

In view of the above, the present invention provides a device and a method for separating display modules, which can disassemble a display panel conveniently and quickly, have high disassembling efficiency, reduce the disassembling breakage rate, and have wider application scenarios.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, an apparatus for display module separation is provided, including an adsorption platform for fixing a panel; a plurality of separating members for clamping side edges of the backlight module; the upper surface of the adsorption platform is perpendicular to the longitudinal axis of the separation part, the separation part is fixed on a lifting mechanism, and the lifting mechanism is used for enabling the backlight module to move towards the direction far away from the panel when the separation part just clamps the side edge of the backlight module.

In one possible embodiment, the separating parts are all separators matched with the size of the clamping grooves on the side edge of the backlight module.

In one possible embodiment, the separating member includes a separating claw and a fixing post for preventing the backlight module from being displaced.

In a possible embodiment, the two sides of the adsorption platform in the longitudinal direction are provided with moving mechanisms, and the moving mechanisms are fixed with cutters.

In a possible embodiment, the lifting mechanism comprises a separation lifting cylinder which extends and retracts vertically, and a separation arm which is connected with a piston rod of the separation lifting cylinder, and the separation component is fixed on the separation arm.

In a possible implementation manner, the separation lifting cylinder is taken as a symmetry axis, and at least two separation cylinders are symmetrically arranged below the separation arm, and the separation cylinders are used for assisting the separation arm to drive the separation part to pull up the backlight module when the force of the separation lifting cylinder is not enough to drive the separation part to pull up the backlight module.

In a possible embodiment, the adsorption platform can be heated, the surface of the adsorption platform is provided with partitions of display modules with different sizes, and the edge of each partition is provided with a sealing strip; the adsorption force and the temperature of different areas of the adsorption platform can be adjusted; the surface of the adsorption platform is provided with grooves which are regularly distributed.

In a possible implementation mode, a platform lifting cylinder is arranged below the adsorption platform and used for adjusting the adsorption platform to a preset separation position.

In a possible implementation manner, a positioner is arranged on one side of the separating arm in the transverse direction, and the positioner is used for assisting the display module to position.

In a possible embodiment, the transverse position of the separating component is adjustable, so that the separating component can adapt to display modules with more sizes.

In a possible embodiment, the device further comprises a drive motor for driving the separating member and the positioner in a longitudinal direction.

In a second aspect, a method for displaying module separation is provided, comprising:

the separating telescopic cylinder and the driving motor respectively adjust the positions of the separating parts in the transverse direction and the longitudinal direction so as to match the size of the operated display module; placing a panel of the display module downwards in a corresponding area of the adsorption platform, and simultaneously opening the positioner and moving the positioner to a preset position to assist the display module in positioning; after the display module is positioned, the adsorption platform adsorbs and fixes the display module; the adsorption platform is lowered to a preset separation position, and the separation lifting cylinder retracts to drive the separation component to descend until the separation component and the side edge of the backlight module are at the same height; the separation telescopic cylinder adjusts the position of the separation component in the transverse direction, so that the separation component just clamps the side edge of the backlight module, and the separation lifting cylinder extends out and drives the backlight module to move in the direction away from the panel; the panel and the backlight module are successfully separated, the adsorption platform and the separation part are stopped, the panel and the backlight module are taken out, and the equipment is reset and is ready to separate the next display module.

The panel is fixed by the adsorption platform, the side edge or the clamping groove is clamped by the separation part, and then the lifting mechanism drives the separation part and the backlight module to move towards the direction far away from the panel, so that the panel and the backlight module are separated. Compared with the separation mode in the prior art, the display panel disassembly method has the advantages that the display panel can be disassembled conveniently and quickly, the disassembly efficiency is high, the disassembly breakage rate is reduced, and the application range is wider.

Drawings

FIG. 1 is a front view of a display module according to the present invention;

FIG. 2 is a schematic view of the initial state of the present invention;

FIG. 3 is an enlarged view of the separating member of the present invention clamping the side edges of the backlight module;

FIG. 4 is a schematic view of an adsorption platform of the present invention;

FIG. 5 is a schematic view of the top of the separating arm of the present invention; and

FIG. 6 is a schematic flow diagram showing a method of module separation in the present invention.

Description of the main elements

Detailed Description

In order to make the objects, principles, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration and not limitation, as defined in the context of the present invention.

It should be particularly noted that the X direction, the Y direction, and the Z direction are shown in the drawings, wherein the X direction corresponds to the horizontal direction, the Y direction corresponds to the vertical direction, and the Z direction corresponds to the vertical direction, in the description of the present invention, the indicated orientation or position relationship is an orientation or position relationship based on the orientation or position relationship shown in the drawings, which can be determined according to the text or technical content of the description, a part of the orientation or position change diagram is omitted for the sake of simplicity of the drawing, or all the position change diagrams are not drawn, and the omitted orientation or position change diagram which is not drawn is not explicitly described in the present specification, which cannot be considered as being omitted, and the description is not repeated one by one for the sake of simplicity of explanation, and the descriptions are unified herein.

The display module includes a panel 101 (or referred to as "panel module") and a backlight module, the panel 101 includes a display layer and a protective layer, and a frame 1021 of the backlight module and the protective layer are bonded together by a glue 1013. When the display module is abnormal and needs to be repaired, the panel 101 and the backlight module need to be separated first to perform the subsequent steps, so the invention separates the protective layer in the panel 101 from the glue 1013 at the frame 1021 of the backlight module, rather than the glue between the display layer and the protective layer.

As shown in fig. 1 and 2, the present invention provides a separation apparatus 20 for a display module, comprising: an adsorption stage 302 for fixing the panel 101; a plurality of separating members 2026 for clamping the side edges of the backlight module; the upper surface of the adsorption platform 302 is perpendicular to the longitudinal axis of the separation component 2026, the longitudinal axis is not longitudinal, but the central axis of the separation component 2026 in the vertical direction; the separating component 2026 is fixed on a lifting mechanism, and the lifting mechanism is used for moving the backlight module in a direction away from the panel 101 when the separating component 2026 just clamps the side edge of the backlight module. For example, the separating component clamps four corners of the backlight module or evenly clamps the periphery of the backlight module or adopts a diagonal clamping manner, and the display module is not easily damaged when the separating component 2026 keeps the backlight module and the display module in a balanced state.

The side edge of the backlight module comprises two conditions, one condition is that the side edge is provided with a preset clamping groove, when the display module is installed with the back shell, the display module can be fixed through screws and can also be clamped and fixed with the back shell through the clamping groove, the separating parts 2026 are separators matched with the clamping groove on the side edge of the backlight module in size, and the separating parts 2026 can clamp the clamping groove to clamp the backlight module, as shown in fig. 3, the structures of the clamping groove and the L-shaped separator are only one embodiment and are not limited to the form shown in fig. 3. In another embodiment, the separating component 2026 includes a separating claw and a fixing column, and the fixing column is used for preventing the backlight module from being displaced; and meanwhile, a groove matched with the fixing column is formed in the side edge of the backlight module, specifically, the separation claw is inserted into the clamping groove to clamp the backlight module, the fixing column is clamped into the matched groove, and when the separation claw clamps the backlight module, the fixing column plays a role in preventing the backlight module from shifting. In another case, the side edge of the backlight module does not have a predetermined slot, the separating unit 2026 clamps the side edge of the backlight module by increasing the clamping force, or the separating unit 2026 and the side edge of the backlight module are provided with an anti-slip member.

The below of adsorption platform 302 has the pipeline of breathing in, and the back is put on adsorption platform 302 to the display module group, and the pipeline of breathing in takes away the air between panel 101 and the adsorption platform 302 to form the region of vacuum, the panel 101 of display module group is fixed. In an embodiment, the lifting mechanism includes a separating lifting cylinder 201 extending and contracting vertically, a separating arm 202 connected to a piston rod 202 of the separating lifting cylinder 201, and the separating component 2026 is fixed to the separating arm 202, so that the lifting movement of the separating component 2026 can be realized, specifically, the separating lifting cylinder 201 extends out, and the separating component 2026 on the separating arm 202 clamps the backlight module to ascend; the separation lifting cylinder 201 retracts, and the separation part 2026 on the separation arm 202 descends and is at the same height as the clamping groove of the backlight module. In another embodiment, the vertical central axis of the separation lifting cylinder 201 is taken as a symmetry axis, at least two separation cylinders 203 are symmetrically arranged below the separation arm 202, and the separation cylinders 203 are used for assisting the separation arm 202 to drive the separation component 2026 to pull up the backlight module when the force of the separation lifting cylinder 201 is not enough to drive the separation component 2026 to pull up the backlight module. It should be understood that the number of the separation cylinders 203 is not limited to two, and if one separation cylinder 203 is enough to cooperate with the separation lifting cylinder 201 to separate the panel 101 and the backlight module, the additional separation cylinder 203 is not required; the actual number of separation cylinders 203 should be configured reasonably for production needs.

Chinese patent publication No. CN104385221B (hereinafter referred to as "patent No. 21B"), which discloses a jig for disassembling a display module, and discloses a fixing module and an adsorbing module, wherein the fixing module is used for fixing a backlight module in the display module, the adsorbing module is used for adsorbing a display panel in the display module, and the edge fixing parts of the fixing module are provided with grooves for inserting the edges of the backlight module. It should be understood that in the patent No. 21B, the backlight module of the display module faces downward, the groove of the backlight module just catches on the frame 1021 of the backlight module, and the panel 101 facing upward is attracted by the attraction module, so as to separate the panel 101 and the display module. In contrast, in the present invention, the panel 101 is fixed on the absorption platform 302, the separation component 2026 clamps the side edge of the backlight module, and then the lifting mechanism drives the separation component 2026 and the backlight module to move upward, thereby separating the panel 101 from the display module. In addition, the suction module in the patent 21B is a suction cup in a shape of a "japanese" even though they are uniformly distributed on the panel 101, but the suction force at the position where the suction cup directly sucks is large, and if a corner of the panel 101 is sucked first, the portion between the sucked panel 101 and the panel 101 which is not sucked is easily broken. As shown in fig. 4, the surface of the suction platform 302 of the present invention has regularly distributed slots 306, only the slot 306 in the middle area is shown in the figure, and does not represent that there is no slot 306 in other areas, the display module panel 101 is placed on the suction platform 302 downwards, the air suction component sucks the air in the panel 101 and the suction platform 302, because the slots 306 in each area on the suction platform 302 are uniform, the suction force of the suction platform 302 to the panel 101 is uniform, and thus the panel 101 is not easily broken.

In further embodiments, the sorption deck 302 may be heated and its temperature may be adjusted. The difference between the currently commonly used glue and the glue that will be widely used in the future is explained in the background art, and is not described herein again, so that it is more reasonable to perform the pretreatment by heating for the latter. Due to the special nature of the glue, if the temperature drops during the separation process, the glue viscosity may gradually return to a very viscous state, and therefore the suction platform 302 may be heated to maintain the product temperature at a certain temperature to prevent the product temperature from running away too quickly. Of course, the display module subjected to the freezing pretreatment may be separated from the carrier (the adsorption platform 302 in the present invention) by heating to prevent the adhesive from recovering. It should be appreciated that the adsorption platform 302 is not generally configured to be freezable for common glue, because separation is generally performed in an open environment, and moisture in the air is likely to condense into water droplets in the display panel 101, which requires an additional drying process. In another embodiment, the surface of the suction platform 302 has partitions adapted to different sizes of display modules, and the edge of each partition has a sealing strip 305, the sealing strip 305 facilitates the formation of a vacuum area between the suction platform 302 and the panel 101, otherwise the panel 101 cannot be fixed, which results in the failure to successfully separate the panel 101 from the backlight module. In addition, when separating the display module with a larger size, the adsorption force required by the adsorption platform 302 to fix the panel 101 is also larger, so that the adsorption force of different areas of the adsorption platform 302 can be adjusted to better meet the actual production requirement.

In another embodiment, the suction platform 302 is provided with moving mechanisms 303 at two sides in the longitudinal direction, and the cutting knife 304 is fixed on the moving mechanisms 303. For example, the moving mechanism 303 is a linear module, a sliding rail is longitudinally arranged below the adsorption platform 302, sliding blocks are arranged at two ends of the sliding rail, and a cutter 304 is fixed on the sliding blocks; alternatively, the moving mechanism 303 moves the cutter 304 by extending and contracting the air cylinder. When the gap between the backlight module and the panel 101 is expanded from the initial width (<0.5mm) state to the required width, but the two are not completely separated, the cutter 304 can assist the separation to cut off the adhered glue 1013. It should be noted that the cutting knife 304 should cut when the gap between the backlight module and the panel 101 expands greatly, so as to prevent the cutting knife 304 from damaging the sensor layer under the ink layer. In another embodiment, a platform lifting cylinder 301 is disposed below the suction platform 302, and the platform lifting cylinder 301 is used for adjusting the suction platform 302 to a predetermined separation position.

In another embodiment, the apparatus further comprises a positioner 401, and the positioner 401 is used for assisting the display module to position. For example, the positioner 401 has a reference component at a right angle, and when the positioner 401 moves to an area matched with the size of the display module and the display module is placed on the adsorption platform 302, the corner of the display module is placed against the reference component, so as to prevent the display module from being placed at an inaccurate position and incapable of performing subsequent separation operations.

In other embodiments, the lateral position of the separating component 2026 is adjustable, so that the separating component 2026 can accommodate more display modules. In one embodiment, the separating arm 202 includes a first mounting plate 2024, a second mounting plate 2022, a top plate 2021, and a separating telescopic cylinder 2023, the first mounting plate 2024 and the top plate 2021 are respectively provided with a strip-shaped adjusting fixing position 2025 along the transverse direction, the separating component 2026 is fixed in the adjusting fixing position 2025 of the first mounting plate 2024, the separating telescopic cylinder 2023 is fixed in the second mounting plate 2022, the second mounting plate 2022 is fixed in the adjusting fixing position 2025 of the top plate 2021, and the separating telescopic cylinder 2023 is used for adjusting the transverse movement of the separating component 2026. As shown in fig. 1, the second mounting plate 2022 is shielded by the first mounting plate 2024, and as shown in fig. 2, the second mounting plate 2022 is shielded by the separation telescopic cylinder 2023. It should be understood that the illustration is only one type of mounting arrangement and that other similar arrangements for achieving positional adjustment of the separating element 2026 are within the scope of the invention. In a further embodiment, the apparatus further comprises a drive motor 501, the drive motor 501 being adapted to drive the separating means 2026, the movement of the positioner 401 in the longitudinal direction. Before the separating arm 202 descends, the separating component 2026 needs to be adjusted to be located outside the display module in the vertical direction, so that the separating component 2026 and the display module are prevented from colliding in the descending process and crushing the display module; after the separating arm 202 is lowered to the proper position, the position of the separating unit 2026 in the horizontal and vertical directions needs to be adjusted to be just inserted into the card slot of the backlight module.

Fig. 6 is a schematic flow chart of the method for separating the display module according to the present invention, which includes step S1, adjusting the position of the separating member in the horizontal and vertical directions respectively by the separating telescopic cylinder and the driving motor to match the size of the display module to be operated; s2, placing the panel of the display module downwards in the corresponding area of the adsorption platform, and simultaneously opening the positioner and moving the positioner to a preset position to assist the display module in positioning; s3, after the display module is positioned, the adsorption platform adsorbs and fixes the display module; s4, the adsorption platform is lowered to a preset separation position, and the separation lifting cylinder retracts to drive the separation component to descend until the separation component and the side edge of the backlight module are at the same height; s5, adjusting the position of the separating component in the transverse direction by the separating telescopic cylinder to enable the separating component to just clamp the side edge of the backlight module, and enabling the separating lifting cylinder to extend out and drive the backlight module to move in the direction far away from the panel; s6, separating the panel from the back light module successfully, stopping the adsorption platform and the separation component, taking out the panel and the back light module, resetting the device and preparing to separate the next display module. In another embodiment, if the force of the separation lifting cylinder is not enough to drive the separation component to pull up the backlight module, the separation cylinder can assist the separation component to pull up the backlight module, so that the panel and the backlight module are separated. Secondly, even after the panel and the backlight module are separated, the panel and the backlight module still have adhesive glue and can be cut off by a cutter.

In summary, the panel is fixed by the adsorption platform, the separation component clamps the side edge or the clamping groove, and then the lifting mechanism drives the separation component and the backlight module to move in the direction away from the panel, so that the panel and the backlight module are separated. Compared with the separation mode in the prior art, the instant adhesive has very large adhesive force, and still can efficiently and stably separate the backlight module from the display module, thereby facilitating subsequent reprocessing.

It should be noted that, in the foregoing embodiment, each included module is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.