Card Tray Assembly and Electronics

Abstract

A card tray assembly and electronic device are provided, the card tray assembly specifically including a circuit board (10), a card tray holder (11), a card tray (12), and a waterproof cover (13), the card tray holder (11) is connected to the circuit board (10), a passage for connecting the card tray (12) is formed between the card tray holder (11) and the circuit board (10), the card tray (12) is installed within the passage and can slide along the passage to switch between an ejected state and an attached state, the waterproof cover (13) is connected to the circuit board (10), and forms a receiving cavity (S1) between the waterproof cover (13) and the circuit board (10), the receiving cavity (S1) faces the passage, and when the card tray (12) is in the attached state, a bottom of the card tray (12) is embedded in the receiving cavity (S1).

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application proposed at the China Patent Office on June 8, 2021, bearing application number 202110641146.4 and entitled "Card Tray Assembly and Electronic Device", the entire contents of which are incorporated herein by reference. The present application relates to the field of communications technology, and more particularly to card tray assemblies and electronic devices. [Background technology]

[0002] With the development of science and technology, the functions of electronic devices such as mobile phones and tablet computers become more and more abundant. The number of subscriber identity modules (SIMs) in electronic devices also increases accordingly, and the insertion and removal of SIM cards becomes more and more frequent. However, as the insertion and removal of SIM cards becomes more and more frequent, the waterproof problem of the card tray of the SIM card also becomes more and more prominent.

[0003] In the prior art, in order to prevent external liquids such as water and sweat from entering the inside of the electronic device through the card tray holder of the SIM card, a waterproof foam and a stopper framework for stopping the waterproof foam are generally installed on the rear side of the card tray holder. As such, the length of the card tray holder is relatively long and tends to occupy a relatively large space, which affects the device layout inside the electronic device. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application is intended to provide a card tray assembly and electronic device to solve the problem that the length between the conventional card trays is relatively long and the space occupied by the conventional card trays is relatively large. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present application is realized as follows.

[0006] According to a first aspect, the present application discloses a card tray assembly, the card tray assembly including a circuit board, a card tray holder, a card tray, and a waterproof cover; the card tray holder is connected to the circuit board, and a passage for connecting the card tray is formed between the card tray holder and the circuit board; the card tray is disposed within the passage and is slidable along the passage between an ejected state and an attached state; the waterproof cover is connected to the circuit board and defines an accommodating cavity between the waterproof cover and the circuit board, the accommodating cavity facing the passage; Here, when the card tray is in the attached state, the bottom of the card tray is disposed to be embedded in the receiving cavity.

[0007] According to a second aspect, the present application further discloses an electronic device, the electronic device including a case, a first waterproof member, and the card tray assembly, the card tray assembly is disposed within the case; the first waterproofing members are disposed around both sides of the card tray holder and connected to the waterproof cover, the first waterproofing members sealingly connect the waterproof cover to the case and sealingly connect one side of the circuit board to the case; an opening is provided on a side wall of the case, and at least a portion of the card tray of the card tray assembly is embedded in the opening; A waterproof cavity is formed between the circuit board, the waterproof cover, the first waterproof member and the case, and the card tray can be switched between an ejected state and an attached state by sliding in the waterproof cavity. Effect of the Invention

[0008] In the embodiment of the present application, by connecting a waterproof cover onto the circuit board of the card tray assembly, the waterproof cover can form an accommodating cavity between the circuit board and the waterproof cover, and when the card tray is in an installed state, the bottom of the card tray can be embedded in the accommodating cavity, and the waterproof cover can be fitted outside the bottom of the card tray, which plays a waterproof role and has a relatively good waterproof effect. In this way, the operation of installing additional waterproof foam and stopper framework at the bottom of the card tray can be avoided, which reduces the length and occupied space of the card tray assembly, and is favorable for the device layout inside the electronic device.

[0009] The above description is only an outline of the technical solution of the present application, which can be implemented in accordance with the contents of the specification, in order to make the technical means of the present application more clearly understood, and in order to make the above and other objectives, features and advantages of the present application more obvious and understandable, the following particularly cites specific embodiments of the present application for description.

[0010] In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces drawings that need to be used in the embodiments or prior art description. It is obvious that the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without exerting creative efforts. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application. [Diagram 2] 2 is a structural schematic diagram of the electronic device shown in FIG. 1 taken along the line AA. [Diagram 3] 3 is a structural schematic diagram of the electronic device shown in FIG. 2 along the cross section BB. [Figure 4] 3 is a structural schematic diagram of the CC cross section of the electronic device shown in FIG. 2. [Diagram 5] 3 is a structural schematic diagram of the DD cross section of the electronic device shown in FIG. 2. [Figure 6] 1 is a schematic diagram of a water ingress path inside an electronic device described in an embodiment of the present application. [Figure 7] FIG. 2 is a structural schematic diagram of a card tray assembly according to an embodiment of the present application. [Figure 8] FIG. 2 is a structural schematic diagram of a waterproof cover according to an embodiment of the present application. [Figure 9] FIG. 9 is a structural schematic diagram of the waterproof cover shown in FIG. 8 from another angle. [Figure 10] 9 is a structural schematic diagram of the waterproof cover shown in FIG. 8 from another angle. [Figure 11] 11 is a schematic structural diagram of the FF cross section of the waterproof cover shown in FIG. 10. FIG. [Figure 12] 11 is a schematic structural view of the waterproof cover shown in FIG. 10 in cross section G-G. [Figure 13] FIG. 9 is a structural schematic diagram of a card tray assembly using the waterproof cover shown in FIG. 8 . [Figure 14] FIG. 14 is a structural schematic diagram of the HH cross section of the waterproof cover shown in FIG. [Figure 15] 14 is a schematic structural view of the waterproof cover shown in FIG. 13 in cross section II. FIG. [Figure 16] FIG. 2 is a structural schematic diagram of another waterproof cover according to an embodiment of the present application. [Figure 17] FIG. 17 is a structural schematic diagram of the waterproof cover shown in FIG. 16 at JJ cross section. [Figure 18] 17 is a schematic structural diagram of the waterproof cover shown in FIG. 16 in a KK cross section. [Figure 19] FIG. 17 is a structural schematic diagram of a card tray assembly using the waterproof cover shown in FIG. 16 . [Figure 20] 20 is a structural schematic diagram of the LL cross section of the card tray assembly shown in FIG. 19. [Figure 21] 20 is a structural schematic diagram of the MM cross section of the card tray assembly shown in FIG. 19. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and obviously, the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art on the basis of the embodiments of the present application without any creative efforts are all within the scope of protection of the present application.

[0013] In the present specification and claims, the terms "first" and "second" features include, explicitly or implicitly, one or more of the features. In the present description, unless otherwise specified, "plurality" means two or more. Note that in the specification and claims, "and / or" refers to at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the related objects before and after.

[0014] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are orientations or positional relationships shown based on the drawings, and are merely for the convenience and simplification of the description of the present application, and do not indicate or imply that the referred devices or elements must have a specific orientation and be configured and operated in a specific orientation, and therefore should not be understood as limitations on the present application.

[0015] In the description of the present application, it should be explained that unless otherwise clearly defined or limited, the terms "attached", "connected" and "connected" should be understood in a broad sense, for example, may be a fixed connection, a removable connection, or an integral connection, may be a mechanical connection, may be an electrical connection, may be a direct connection, may be an indirect connection through an intermediate medium, or may be communication inside two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific situation.

[0016] An embodiment of the present application provides a card tray assembly, which may be specifically used in an electronic device, which may include, but is not limited to, at least one of a mobile phone, a tablet computer, and a wearable device, and the embodiment of the present application may not be limited to a specific type of the electronic device.

[0017] Referring to Figure 1, Figure 1 shows a structural schematic diagram of an electronic device in an embodiment of the present application; referring to Figure 2, Figure 2 shows a structural schematic diagram of the AA cross section of the electronic device shown in Figure 1; referring to Figure 3, Figure 3 shows a structural schematic diagram of the BB cross section of the electronic device shown in Figure 2; referring to Figure 4, Figure 4 shows a structural schematic diagram of the CC cross section of the electronic device shown in Figure 2; referring to Figure 5, Figure 5 shows a structural schematic diagram of the DD cross section of the electronic device shown in Figure 2; and referring to Figure 6, Figure 6 shows a schematic diagram of a water ingress path inside the electronic device described in an embodiment of the present application.

[0018] As shown in FIGS. 1 to 5, the electronic device may specifically include a case 14, a first waterproof member 15, and a card tray assembly.

[0019] The card tray assembly is installed in a case 14, and the card tray holder 11, the card tray 12 and the waterproof cover 13 of the card tray assembly are all connected to the same side of the circuit board 10; The first waterproofing members 15 are provided around both sides of the card tray holder 11 and connected to the waterproof cover 13, one side of the first waterproofing members 15 sealingly connects the waterproof cover 13 to the case 14, and sealingly connects one side of the circuit board 10 to the case 14; An opening 143 is provided on a side wall of the case 14, and at least a part of the card tray 12 of the card tray assembly is provided to be embedded in the opening 143; A waterproof cavity S is formed between the circuit board 10, the waterproof cover 13, the first waterproof member 15 and the case 14, and the card tray 12 can be switched between an ejected state and an attached state by sliding in the waterproof cavity S.

[0020] In the embodiment of the present application, a waterproof cavity S can be formed between the circuit board 10, the waterproof cover 13, the first waterproof member 15 and the case 14, so that the card tray 12 can be switched between an ejected state and an attached state by sliding in the waterproof cavity S, and when the card tray 12 is in the attached state, the bottom of the card tray 12 can be embedded in the receiving cavity formed by the waterproof cover 13 and the circuit board 10, and the waterproof cover 13 can be fitted outside the bottom of the card tray 12, which plays a waterproof role and has a relatively good waterproof effect. In this way, the operation of installing additional waterproof foam and stopper framework at the bottom of the card tray 12 can be avoided, which reduces the length and occupied space of the card tray assembly, and is favorable for the device layout inside the electronic device.

[0021] Optionally, the electronic device may further include a second waterproof member 16, which can be fitted on the outside of the card tray 12, and when the card tray 12 is inserted into the waterproof cavity S, the second waterproof member 16 can abut against the opening 143 of the case 14. Since the second waterproof member 16 is provided to be embedded between the opening 143 of the case 14 and the card tray 12, the second waterproof member 16 can be used to achieve waterproofing between the card tray 12 and the opening 143 of the case 14, and during the process of inserting and removing the card tray 12, the second waterproof member 16 can prevent external liquids such as water and sweat from entering the inside of the electronic device through the slit between the card tray 12 and the opening 143 of the case 14, thereby achieving a first stage of waterproofing for the electronic device.

[0022] 6, during the insertion and removal of the card tray 12, external liquids such as water and sweat can enter the inside of the electronic device through the slit between the card tray 12 and the opening 143 of the case 14 in the direction indicated by the arrow in the figure. A waterproof cavity S can be formed between the circuit board 10, the waterproof cover 13, the first waterproof member 15 and the case 14, so that the bottom of the card tray 12 can be embedded in the receiving cavity formed by the waterproof cover 13 and the circuit board 10, and the waterproof cover 13 can be used to prevent the liquid in the waterproof cavity S from flowing further to the battery 19 of the electronic device, thereby avoiding the occurrence of a short circuit caused by water entering the battery 19 and realizing a second level of waterproofing for the electronic device.

[0023] As shown in FIG. 2, when the card tray 12 is in an installed state, the pitch between the bottom of the card tray 12 and the waterproof cover 13 is relatively small, and the distance from the bottom of the card tray 12 to the battery 19 is correspondingly relatively small, thus reducing the vertical length of the entire card tray assembly as shown in FIG. 2, and reducing the space inside the electronic device occupied by the card tray assembly, which is advantageous for the device layout inside the electronic device.

[0024] In practical application, the electronic device may further include a battery cushioning cushion 20, in which the battery 19 and the battery cushioning cushion 20 are both arranged in the case 14, the battery 19 is arranged on the side away from the opening 143 of the waterproof cover 13, and the battery cushioning cushion 20 can be arranged between the waterproof cover 13 and the battery 19, and the battery cushioning cushion 20 can be used to avoid a rigid connection between the waterproof cover 13 and the battery 19 from damaging the battery 19 and to extend the service life of the battery 19.

[0025] For example, the battery cushioning cushion 20 may be made of flexible materials such as foam, silica gel, etc., and the embodiments of the present application may not be limited to the specific material of the battery cushioning cushion 20.

[0026] 6, a part of the case 14 extends into the waterproof cover 13 and is connected to the waterproof cover 13 via the first waterproof member 15, so as to better realize the sealed connection between the case 14 and the waterproof cover 13. In this way, even if liquid enters the waterproof cavity S, the liquid will simply flow into the waterproof cover 13 along the case 14, and thus it is possible to prevent the liquid from continuing to flow toward the battery 19 inside the electronic device. The waterproof cover 13 can be used to realize secondary waterproofing of the electronic device, further improving the waterproof performance of the electronic device.

[0027] 3, the electronic device may further include a third waterproof member 17, which can be disposed so as to be embedded between the other side of the circuit board 10 and the case 14. The third waterproof member 17 can be used to prevent external liquid from entering the inside of the electronic device through a slit between the other side of the circuit board 10 and the case 14, thereby preventing the liquid from damaging the functional devices on the other side of the circuit board 10 and the devices inside the electronic device, and further improving the waterproof performance of the electronic device.

[0028] In one optional embodiment of the present application, the case 14 may include a first case 141 and a second case 142 that are interconnected, and the other side of the first waterproof member 15 is in close contact with the first case 141, and the electronic device may further include a fourth waterproof member 18, which may be disposed so as to be embedded between the first case 141 and the second case 142, and the fourth waterproof member 18 may prevent external liquid from penetrating between the first case 141 and the second case. 142 The present invention can be used to prevent liquid from entering the inside of the electronic device through the gap between the electronic device and the inside of the electronic device, thereby preventing the liquid from damaging the devices inside the electronic device and further improving the waterproof performance of the electronic device.

[0029] In practical applications, dividing case 14 into first case 141 and second case 142 that can be interconnected not only makes it easier to process case 14, but also makes it easier to assemble each component of the card tray assembly, such as battery 19, inside case 14.

[0030] For example, the first waterproof member 15, the second waterproof member 16, the third waterproof member 17 and the fourth waterproof member 18 may be made of waterproof materials having waterproof performance and flexible deformation characteristics, such as waterproof foam, waterproof silica gel, etc., and the embodiments of the present application may not be limited to the specific materials of the first waterproof member 15, the second waterproof member 16, the third waterproof member 17 and the fourth waterproof member 18.

[0031] In the embodiment of the present application, the waterproof cover 13 may be made of metal such as iron, steel, etc., and an anti-rust coating may further be installed on the surface of the waterproof cover 13. The waterproof cover 13 may be connected onto the circuit board 10 by a welding process, and a weld seam 101 may be formed between the waterproof cover 13 and the circuit board 10. Exemplarily, the weld seam 101 may be a fillet weld seam, a spot weld seam, etc., and the embodiment of the present application may not be limited to a specific type of the weld seam 101.

[0032] It should be noted that the drawings of the embodiments of the present application only show the case where the card tray 12 includes a first card tray 121 and a second card tray 122, that is, the card tray 12 is used to accommodate two SIM cards. In practical applications, the card tray 12 may be designed to accommodate other numbers of SIM cards. The number of SIM cards that the card tray 12 can accommodate may be one, three, five, etc., and the embodiments of the present application are not specifically limited to the number of SIM cards that the card tray 12 can accommodate.

[0033] In summary, the electronic device described in the embodiments of the present application may include at least the following advantages.

[0034] In the embodiment of the present application, a waterproof cavity can be formed between the circuit board, the waterproof cover, the first waterproof member and the case, so that the card tray can be switched between an ejected state and an attached state by sliding in the waterproof cavity, and when the card tray is in the attached state, the bottom of the card tray can be embedded in the receiving cavity formed by the waterproof cover and the circuit board, and the waterproof cover can be fitted outside the bottom of the card tray, which plays a waterproof role and has a relatively good waterproof effect. In this way, the operation of installing additional waterproof foam and stopper framework at the bottom of the card tray can be avoided, which reduces the length and occupied space of the card tray assembly, and is favorable for the device layout inside the electronic device.

[0035] Referring to FIG. 7, a structural schematic diagram of a card tray assembly of an embodiment of the present application is shown. As shown in FIG. 7, the card tray assembly may specifically include a circuit board 10, a card tray holder 11, a card tray 12, and a waterproof cover 13, in which the card tray holder 11 is connected to the circuit board 10, and a passage for connecting the card tray 12 is formed between the card tray holder 11 and the circuit board 10, and the card tray 12 is installed in the passage and can slide along the passage to switch between an ejected state and an installed state, and the waterproof cover 13 is connected to the circuit board 10 and forms an accommodating cavity between the circuit board 10 and the waterproof cover 13, and the accommodating cavity faces the passage, whereby when the card tray 12 is in the installed state, the bottom of the card tray 12 is embedded in the accommodating cavity.

[0036] In the embodiment of the present application, by connecting the waterproof cover 13 on the circuit board 10 of the card tray assembly, the waterproof cover 13 can form a receiving cavity S1 between the circuit board 10, and when the card tray 12 is in an installed state, the bottom of the card tray 12 can be embedded in the receiving cavity S1, and the waterproof cover 13 can be fitted outside the bottom of the card tray 12, which plays a waterproof role and has a relatively good waterproof effect. In this way, the operation of additionally installing waterproof foam and stopper framework at the bottom of the card tray 12 can be avoided, which reduces the length and occupied space of the card tray assembly, and is favorable for the device layout inside the electronic device.

[0037] Specifically, the circuit board 10 may be a printed circuit board or a flexible circuit board, and the embodiments of the present application are not limited to a specific type of the circuit board 10. The card tray holder 11 may be connected to the circuit board 10 by welding or adhesive. The card tray holder 11 can be used to support the sliding of the card tray 12 to realize insertion and removal of the card tray 12.

[0038] Optionally, the waterproof cover 13 may be made of metal such as iron, steel, etc., and an anti-rust coating may further be installed on the surface of the waterproof cover 13. The waterproof cover 13 may be connected onto the circuit board 10 by a welding process, thereby connecting the waterproof cover 13 to the circuit board 10, and a weld seam 101 may be formed on the waterproof cover 13 and the circuit board 10. Exemplarily, the weld seam 101 may be a fillet weld seam, a spot weld seam, etc., and the embodiments of the present application may not be limited to a specific type of the weld seam 101.

[0039] 7, before the card tray assembly is assembled to the electronic device, a first waterproof member 15 may be first adhered to the card tray assembly. Specifically, the first waterproof member 15 may be adhered to the circuit board 10 on both sides of the card tray holder 11 and to the waterproof cover 13, so that the first waterproof member 15 can sufficiently seal and connect the waterproof cover 13 and the case 14, and also seal and connect the circuit board 10 and the case 14.

[0040] Referring to FIG. 8, FIG. 8 shows a structural schematic diagram of the waterproof cover of an embodiment of the present application; referring to FIG. 9, FIG. 9 shows a structural schematic diagram of another angle of the waterproof cover shown in FIG. 8; referring to FIG. 10, FIG. 10 shows a structural schematic diagram of another angle of the waterproof cover shown in FIG. 8; referring to FIG. 11, FIG. 11 shows a structural schematic diagram of the FF cross section of the waterproof cover described in FIG. 10; referring to FIG. 12, FIG. 12 shows a structural schematic diagram of the GG cross section of the waterproof cover shown in FIG. 10; referring to FIG. 13, FIG. 13 shows a structural schematic diagram of a card tray assembly applying the waterproof cover shown in FIG. 8; referring to FIG. 14, FIG. 14 shows a structural schematic diagram of the HH cross section of the waterproof cover shown in FIG. 13; and referring to FIG. 15, FIG. 15 shows a structural schematic diagram of the II cross section of the waterproof cover shown in FIG. 13.

[0041] 8 to 15, the waterproof cover 13 is provided with a skirt 131, which can be used for welding onto the circuit board 10. In practical application, by installing the skirt 131 on the waterproof cover 13 and welding the skirt 131 onto the circuit board 10, the contact area between the waterproof cover 13 and the circuit board 10 can be increased, and the welding reliability between the waterproof cover 13 and the circuit board 10 can be further improved.

[0042] As shown in FIG. 8, the waterproof cover 13 may include a cover plate 133, and side walls 135 may be installed on three sides of the cover plate 133. By welding the side of the side wall 135 away from the cover plate 133 to the circuit board 10, an accommodating cavity S1 can be formed between the cover plate 133, the side wall 135 and the circuit board 10, and the opening side of the accommodating cavity S1 may face the passage through which the card tray 12 slides, thereby facilitating the bottom of the card tray 12 to enter and exit the accommodating cavity S1.

[0043] In the embodiment of the present application, a skirt 131 may further be installed on the side of the side wall 135 of the waterproof cover 13 that is away from the cover plate 133, thereby increasing the contact area between the waterproof cover 13 and the circuit board 10. In a specific application, the skirt 131 may be integrally formed with the waterproof cover 13 through a bending or press forming process, thereby avoiding the process of additionally processing the skirt 131 and improving the processing efficiency of the waterproof cover 13.

[0044] Optionally, a process opening 132 is provided at the bend of the skirt 131, and the process opening 132 may be designed to have an inward recess. In a specific application, the material of the waterproof cover can be subjected to a material reduction process to form the process opening 132. 2is installed at the bend position of the skirt 131, which can play a role in preventing the problem of wrinkles and unevenness during the pulling process. In the process of welding the skirt 131 to the circuit board 10, the process opening 132 can be filled with solder paste, thus preventing the problem of leakage from the waterproof cover 13.

[0045] 15, an end face of waterproof cover 13 may be flush with an end face of circuit board 10, and a first gap L1 between the outer wall of the end of waterproof cover 13 and the end face of circuit board 10 can be minimized. In this way, the length of the card tray assembly can be minimized, and the space occupied by the card tray assembly can be reduced, which is advantageous for the layout of devices inside the electronic device.

[0046] 15, the skirt 131 at the end of the waterproof cover 13 can be welded onto the circuit board 10 through the weld seam 101. The solder paste at the weld seam 101 can play a very good hermetic seal and connection and fixation role, and the waterproof cover 13 and the circuit board 10 are formed into one whole, ensuring the complete sealing except for the opening of the receiving cavity between the waterproof cover 13 and the circuit board 10.

[0047] 16 shows a schematic structure diagram of another waterproof cover of an embodiment of the present application; FIG. 17 shows a schematic structure diagram of the waterproof cover shown in FIG. 16 at JJ section; FIG. 18 shows a schematic structure diagram of the waterproof cover shown in FIG. 6 16. Referring to FIG. 19, FIG. 19 shows a structural schematic diagram of a card tray assembly applying the waterproof cover shown in FIG. 16. Referring to FIG. 20, FIG. 20 shows a structural schematic diagram of the LL cross section of the card tray assembly shown in FIG. 19. Referring to FIG. 21, FIG. 21 shows a structural schematic diagram of the MM cross section of the card tray assembly shown in FIG. 19.

[0048] Specifically, in the waterproof cover 13 shown in Figures 16 to 21, compared with the waterproof cover 13 described in the above-mentioned embodiment, the design of the skirt is canceled. And, the waterproof cover 13 shown in Figures 16 to 21 only includes a cover plate 133 and a side wall 135, and the side of the side wall 135 away from the cover plate 133 is directly welded onto the circuit board 10. In the embodiment of the present application, since the installation of the skirt is canceled, the height of the card tray assembly can be relatively low, so that the card tray assembly can be applied to application scenarios with a relatively low height.

[0049] 20, the side wall 135 of the waterproof cover 13 can be welded onto the circuit board 10 through the weld seam 101. The solder paste of the weld seam 101 can play a very good role of sealing and connecting and fixing, forming the waterproof cover 13 and the circuit board 10 into one whole, and ensuring complete sealing except for the opening of the receiving cavity between the waterproof cover 13 and the circuit board 10. And, since the contact area between the side wall 135 of the waterproof cover 13 and the circuit board 10 is relatively small, the weld seam 101 can be provided on both the inside and outside of the side wall 135 of the waterproof cover 13 in order to improve the welding reliability between the waterproof cover 13 and the circuit board 10.

[0050] As shown in FIG. 21 , the end face of the circuit board 10 may extend outside the end face of the waterproof cover 13, so that there is a preset distance between the end face of the circuit board 10 and the end face of the waterproof cover 13, which facilitates the placement of the weld seam 101.

[0051] figure 21 As shown in FIG. 1, the thickness of the side wall 135 of the waterproof cover 13 can be represented by a side wall thickness L2, the width of the weld seam 101 can be represented by a weld seam width L3, and the distance between the edge of the weld seam 101 and the end face of the circuit board 10 can be represented by a second gap It can be represented as L4.

[0052] In practical application, since the side wall thickness L2 is relatively small, the contact area between the side wall 135 and the circuit board 10 is relatively small, and in order to improve the welding reliability between the waterproof cover 13 and the circuit board 10, it is necessary to provide the weld seam 101 with a weld seam width L3 on both the inside and outside of the side wall 135 of the waterproof cover 13. In addition, in order to prevent the pad for locating the weld seam 101 from being cut during the shearing process of the circuit board 10, it is necessary to leave a safety gap L4 of a certain width between the weld seam 101 and the end face of the circuit board 10.

[0053] In summary, the card tray assembly described in the embodiments of the present application may include at least the following advantages.

[0054] In the embodiment of the present application, by connecting a waterproof cover onto the circuit board of the card tray assembly, the waterproof cover can form an accommodating cavity between the circuit board and the waterproof cover, and when the card tray is in an installed state, the bottom of the card tray can be embedded in the accommodating cavity, and the waterproof cover can be fitted outside the bottom of the card tray, which plays a waterproof role and has a relatively good waterproof effect. In this way, the operation of installing additional waterproof foam and stopper framework at the bottom of the card tray can be avoided, which reduces the length and occupied space of the card tray assembly, and is favorable for the device layout inside the electronic device.

[0055] The above-described device embodiments are merely illustrative, and the units described herein as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed among multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. Those skilled in the art can understand and implement the present invention without any creative effort.

[0056] References herein to "one embodiment," "an embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. It should be noted that instances of the phrase "in one embodiment" herein are not necessarily all referring to the same embodiment.

[0057] In the specification provided herein, a large amount of specific details are set forth. However, it will be understood that the embodiments of the present application may be practiced without these specific details. In some embodiments, well-known methods, structures and techniques are not shown in detail so as to not obscure an understanding of this specification.

[0058] In the claims, any reference signs placed between parentheses shall not constitute a limitation to the claims. The word "comprises" does not exclude the presence of elements or steps not recited in a claim. The word "a" or "one" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented with the aid of hardware comprising several different elements and a suitably programmed computer. In a unit claim recited several devices, several of these devices may be embodied by one and the same hardware item. The use of the words first, second, third, etc. does not imply any order. These words can be interpreted as names.

[0059] Finally, it should be noted that the above examples are only for illustrating the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above examples, those skilled in the art will still understand that the technical solutions described in the above examples can be modified or some of the technical features thereof can be replaced with equivalents. These modifications or replacements do not deviate from the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application. [Explanation of symbols]

[0060] 10-circuit board, 101-weld seam, 11-card tray holder, 12-card tray, 121-first card tray, 122-second card tray, 13-waterproof cover, 131-skirt, 132-process opening, 133-cover plate, 134-material communication port, 135-side wall, 14-case, 141-first case, 142-second case, 143-opening, 15-first waterproof member, 16-second waterproof member, 17-third waterproof member, 18-fourth waterproof member, 19-battery, 20-battery buffer cushion, S-waterproof cavity, L1-first gap, L2-side wall thickness, L3-weld seam width, L4-second gap, S1-accommodating cavity.

Claims

1. 1. A card tray assembly comprising: a circuit board, a card tray holder, a card tray, and a waterproof cover; the card tray holder is connected to the circuit board, and a passage for connecting the card tray is formed between the card tray holder and the circuit board; the card tray is disposed within the passage and is slidable along the passage between an ejected state and an attached state; the waterproof cover is connected to the circuit board and defines an accommodating cavity between the waterproof cover and the circuit board, the accommodating cavity facing the passage; Here, the card tray assembly is configured so that when the card tray is in the attached state, a bottom of the card tray is embedded in the receiving cavity.

2. The card tray assembly of claim 1 , wherein the waterproof cover is welded to the circuit board.

3. 3. The card tray assembly of claim 2, wherein the waterproof cover is provided with a skirt, the skirt being welded onto the circuit board.

4. 4. The card tray assembly of claim 3, wherein an edge of said waterproof cover is flush with an edge of said circuit board.

5. The card tray assembly of claim 3 , wherein a process opening is located at a corner of the skirt.

6. 3. The card tray assembly of claim 2, wherein an end face of the circuit board extends outside an end face of the waterproof cover, with a preset distance between the end face of the circuit board and the end face of the waterproof cover.

7. 2. The card tray assembly of claim 1, wherein the circuit board comprises at least one of a printed circuit board and a flexible circuit board.

8. The card tray assembly according to claim 1 , wherein an anti-rust coating is further provided on a surface of the waterproof cover.

9. An electronic device, A card tray assembly according to any one of claims 1 to 8, comprising: a case; a first waterproof member; and the card tray assembly is disposed within the case; the first waterproofing members are disposed around both sides of the card tray holder and connected to the waterproof cover, the first waterproofing members sealingly connect the waterproof cover to the case and sealingly connect one side of the circuit board to the case; an opening is provided on a side wall of the case, and at least a portion of the card tray of the card tray assembly is embedded in the opening; an electronic device, wherein a waterproof cavity is formed between the circuit board, the waterproof cover, the first waterproof member and the case, and the card tray can be switched between an ejected state and an attached state by sliding in the waterproof cavity.

10. The electronic device according to claim 9 , wherein a portion of the case extends into the waterproof cover and is connected to the waterproof cover via the first waterproof member.

11. 10. The electronic device of claim 9, further comprising a second waterproof member, the second waterproof member being fitted outside the card tray, and the second waterproof member abutting against the opening of the case when the card tray is inserted into the waterproof cavity.

12. The electronic device according to claim 9 , further comprising a third waterproofing member, the third waterproofing member being embedded between the other side of the circuit board and the case.

13. 10. The electronic device according to claim 9, further comprising a battery and a battery cushioning cushion, both of which are provided within the case, the battery being disposed on a side of the waterproof cover away from the opening, and the battery cushioning cushion being disposed between the waterproof cover and the battery.

14. The electronic device according to claim 13 , wherein the material of the battery cushioning cushion includes at least one of foam and silica gel.

15. the case includes a first case and a second case that are interconnected, the other side of the first waterproof member being in close contact with the first case; The electronic device according to claim 9 , further comprising a fourth waterproofing member, the fourth waterproofing member being embedded between the first case and the second case.

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