Charging case and device assembly

Abstract

This disclosure relates to a charging case and device assembly. The charging case includes a first lower housing, a second lower housing, a sealing layer, and a motherboard. The first lower housing includes a first housing wall, an opening formed by the first housing wall, and an annular protrusion extending from the first housing wall toward the center of the opening. The second lower housing is at least partially located within the opening, and includes a sealing surface facing the bottom of the opening. The sealing surface is disposed opposite to a first surface of the annular protrusion facing away from the bottom of the opening. The sealing layer is disposed between the sealing surface and the first surface and is connected to the sealing surface and the first surface. The second lower housing and the sealing layer close a portion of the opening, forming a sealed cavity. The motherboard is disposed within the sealed cavity.

Description

Technical Field

[0001] This disclosure relates to the field of terminal technology, and more particularly to a charging box and device assembly. Background Technology

[0002] With the continuous development of electronic technology, people have increasingly higher requirements for the ease of use of electronic device accessories. In order to reduce the constraints of cables on electronic devices, there are many portable charging cases or fixed charging docks on the market. By placing the electronic device in the charging case or on the charging dock, the electronic device can be charged. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, embodiments of this disclosure provide a charging box and a device assembly.

[0004] According to a first aspect of the present disclosure, a charging case is provided, the charging case including a first lower housing, a second lower housing, a sealing layer, and a motherboard. The first lower housing includes a first housing wall, an opening formed by the first housing wall, and an annular protrusion extending from the first housing wall toward the center of the opening. The second lower housing is at least partially located within the opening, and the second lower housing includes a sealing surface facing the bottom of the opening, the sealing surface being disposed opposite to a first surface of the annular protrusion facing away from the bottom of the opening. The sealing layer is disposed between the sealing surface and the first surface, and is connected to the sealing surface and the first surface. The second lower housing and the sealing layer close a portion of the opening, forming a sealed cavity. The motherboard is disposed within the sealed cavity.

[0005] Furthermore, the second lower housing is in contact with the end face of the first housing wall, and the end face of the first housing wall is inclined relative to a plane perpendicular to the height direction of the first lower housing.

[0006] Furthermore, the first surface is inclined relative to the plane perpendicular to the height direction of the first lower housing.

[0007] Furthermore, the end face has the same inclination direction as the first surface, and at least a portion of the end face of the first shell wall coincides with the first surface.

[0008] Furthermore, the second lower housing includes a second shell wall, a receiving cavity enclosed by the second shell wall, and a side opening disposed on the second shell wall, the side opening communicating with the receiving cavity.

[0009] Furthermore, the first lower housing also includes a first groove recessed inward from the end face of the first housing wall, and the second lower housing includes a second groove corresponding to the first groove; the charging box also includes an upper housing and a rotating shaft, the rotating shaft being fixedly connected to one of the upper housing and the first lower housing and rotatably connected to the other, the first groove and the second groove avoiding the upper housing when the upper housing rotates relative to the first lower housing; or, the rotating shaft being fixedly connected to one of the upper housing and the second lower housing and rotatably connected to the other, the first groove and the second groove avoiding the upper housing when the upper housing rotates relative to the second lower housing.

[0010] Furthermore, the first lower housing includes a first buckle disposed on the first housing wall, and the second lower housing includes a second buckle that engages with the first buckle.

[0011] Furthermore, the first lower housing includes a first guide portion disposed on the first housing wall, and the second lower housing includes a second guide portion that cooperates with the first guide portion. The first guide portion and the second guide portion extend parallel to the depth direction of the opening.

[0012] Furthermore, the length of the annular protrusion extending from the first shell wall toward the center of the opening is greater than or equal to 0.3 mm and less than or equal to 0.7 mm.

[0013] Furthermore, the second lower housing includes a second housing wall, a receiving cavity enclosed by the second housing wall, and a first opening communicating with the receiving cavity and the sealed cavity; the charging box also includes an electrical contact and a first seal, the electrical contact being electrically connected to the motherboard and passing through the first opening, and the first seal interference-surrounding the outer periphery of the electrical contact.

[0014] Furthermore, the charging box also includes a magnet for attracting a device to be charged that is compatible with the charging box; the magnet is disposed in the sealed cavity and in contact with the second lower housing; or the magnet is disposed in the second lower housing and includes a second opening; the charging box also includes a second seal that is interference-fitted into the second opening and the electrical contacts pass through the second seal.

[0015] Furthermore, the first lower housing includes a third opening communicating with the sealed cavity, and the charging box also includes an electrical connector and a third seal. The electrical connector is electrically connected to the motherboard and the interface faces the third opening. The third seal is disposed on the motherboard and interference-fits the outer periphery of the electrical connector. The first lower housing abuts against the end face of the third seal that is away from the motherboard.

[0016] Furthermore, the first lower housing includes a lower housing body and a decorative ring assembled with the lower housing body, the decorative ring forming the third opening, the decorative ring abutting against the end face of the third sealing member away from the motherboard; or both the decorative ring and the lower housing body abut against the end face of the third sealing member away from the motherboard.

[0017] According to a second aspect of the present disclosure, a device assembly is provided, including a device to be charged and a charging box as described in any of the foregoing embodiments, wherein the device to be charged is disposed in the second lower housing.

[0018] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0019] As can be seen from the above embodiments, this disclosure provides a sealing layer between the first surface of the annular boss and the sealing surface of the second lower shell. The sealing plane is formed by the contact between the surfaces, which prevents liquids and other substances from entering the sealing cavity through the gap between the first and second lower shells. This is beneficial for waterproofing the motherboard in the sealing cavity, improving the waterproof performance of the charging box, and extending the service life of the charging box.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] Figure 1 The diagram shown is an exploded view of one embodiment of the charging box of this disclosure.

[0023] Figure 2 As shown Figure 1 A partial enlarged view of the first lower housing of the embodiment shown.

[0024] Figure 3 As shown Figure 2 The diagram shows a top view of the first lower shell.

[0025] Figure 4 As shown Figure 1 A schematic diagram of the second lower housing of the embodiment shown.

[0026] Figure 5 As shown Figure 4 The diagram shows a bottom view of the second lower shell.

[0027] Figure 6 The image shown is a cross-sectional view of an embodiment of the first charging structure of the charging box of this disclosure.

[0028] Figure 7 The image shown is a cross-sectional view of an embodiment of the second charging structure of the charging box of this disclosure. Detailed Implementation

[0029] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0030] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of at least one associated listed item.

[0031] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0032] refer to Figures 1-5The first aspect of this disclosure provides a charging case 100, including a first lower housing 1, a second lower housing 2, a sealing layer (not shown), and a motherboard (not shown). The first lower housing 1 includes a first housing wall 11, an opening 12 enclosed by the first housing wall 11, and an annular boss 13 extending from the first housing wall 11 toward the center of the opening 12. The second lower housing 2 is at least partially located within the opening 12, and includes a sealing surface 26 facing the bottom of the opening 12, the sealing surface 26 being disposed opposite to a first surface 131 of the annular boss 13 away from the bottom of the opening 12. The sealing layer is disposed between the first surface 131 and the sealing surface 26, and is connected to the sealing surface 26 and the first surface 131, thereby forming a sealed connection between the first lower housing 1 and the second lower housing 2. The second lower housing 2 and the sealing layer close a portion of the opening 12, forming a sealed cavity, and the motherboard is disposed within the sealed cavity. In some embodiments, the first surface 131 and the sealing surface 26 are parallel and perpendicular to the depth direction of the opening 12, or they may be at a certain angle to the depth direction of the opening 12, such as 5°, 10°, etc., which is not limited in this disclosure. For ease of explanation, this disclosure provides reference directions, wherein the first direction X is the width direction of the charging box 100, the second direction Y is the thickness direction of the charging box 100, and the third direction Z is the height direction of the charging box 100, wherein the depth direction of the opening 12 is parallel to the third direction Z.

[0033] Specifically, when the second lower housing 2 is assembled with the first lower housing 1 along the third direction Z, the sealing surface 26 connects with the sealing layer on the first surface 131 of the annular protrusion 13. The second lower housing 2 and the sealing layer can seal the lower half of the opening 12 to form an independent, externally separated sealed cavity, through which the motherboard is accommodated. The sealing layer is connected to both the sealing surface 26 and the first surface 131, forming an annular sealing plane surrounding the opening 12 through "face-to-face" contact. In this way, liquids, dust, and other substances can be prevented from flowing into the sealed cavity through the gap between the first lower housing 1 and the second lower housing 2, which is beneficial for waterproofing the motherboard inside the sealed cavity, improving the waterproof performance of the charging case 100, and extending the service life of the charging case 100.

[0034] The sealing layer can be formed by processes such as dispensing or applying adhesive, and this disclosure is not limited to this. In an embodiment where the first surface 131 of the annular protrusion 13 is inclined to the third direction Z, when forming the sealing layer by dispensing, the placement angle of the charging box 100 can be appropriately adjusted so that the dispensing positions of the first surface 131 and the sealing surface 26 are flush with the horizontal plane. By continuously adjusting the placement angle of the charging box 100, a sealing layer is formed on the entire annular protrusion 13. In this way, the dispensing surface can be kept horizontal during dispensing, avoiding uneven thickness of the sealing layer or glue overflow due to gravity. Similarly, when forming the sealing layer by applying adhesive, the angle of the first lower housing 1 can be rotated so that the adhesive covers the first surface 131 with a uniform thickness, and then the sealing surface of the second lower housing 2 is pressed against the first surface 131 to achieve a sealed connection. In other embodiments, a sealing layer is also disposed between the first shell wall 11 and the second shell wall 22 of the first lower housing 1 and the second lower housing 2, for example on a wall surface parallel to the third direction Z, to further improve the sealing performance of the charging box 100.

[0035] In some embodiments, the annular protrusion 13 and the first lower housing 1 are integrally formed, thereby avoiding a gap between the annular protrusion 13 and the first lower housing 1, which would allow liquids or other substances to flow into the sealed cavity through the gap and affect the waterproof performance of the charging case 100. Furthermore, the annular protrusion 13 can be positioned close together, allowing the sealing surface 26 to abut against the sealing layer near the end face 17 of the first housing wall 11. This does not affect the sealing connection formed between the sealing layer and the annular protrusion 13 and the second lower housing 2, and also reduces the material used in the second lower housing 2, thereby reducing costs and the overall weight of the charging case 100, and improving portability.

[0036] The charging case 100 disclosed herein can be a wireless earphone charging case 100, a portable mobile phone charging case 100, a wireless landline phone charging case 100, a tablet computer charging case 100, etc., and this disclosure is not limited thereto. Furthermore, the charging case 100 can be a small portable charging case 100 or a larger charging case 100, and this disclosure is not limited thereto. The second lower housing 2 includes a second housing wall 22 and a receiving cavity 23 enclosed by the second housing wall 22. The receiving cavity 23 is used to accommodate the device to be charged that is paired with the charging case 100. When the device to be charged needs charging or is not in use, it can be placed in the receiving cavity 23, serving both a charging function and a storage function for the device to be charged.

[0037] It should be noted that the motherboard in this disclosure refers to the circuit structure housed in the sealed cavity, including printed circuit boards, flexible circuit boards, and rigid-flex circuit boards, etc., and this disclosure is not limited thereto. As long as a component has a connection relationship with a circuit board in the housing cavity 23, it is referred to as being connected to the motherboard in this disclosure.

[0038] In some embodiments, the second lower housing 2 contacts and engages with the end face 17 of the first housing wall 11, and the end face 17 of the first housing wall 11 is inclined relative to a plane perpendicular to the height direction of the first lower housing 1. See details. Figure 1 The first wall 111 and the second wall 112 are two walls of the first lower housing 1 perpendicular to the second direction Y. The height of the first wall 111 in the third direction Z is greater than the height of the second wall 112 in the third direction Z, so that the end face 17 of the first housing wall 11 forms a certain angle with the plane perpendicular to the third direction Z. Thus, the entire first housing wall 11 presents an inclined opening in the second direction Y, thereby exposing the second lower housing 2 housed in the opening 12 to a greater extent, making it easier to put the device to be charged into the receiving cavity 23 or to remove the device to be charged from the receiving cavity 23. Furthermore, since the second lower housing 2 is exposed to a greater extent, it is convenient for the user to wipe the receiving cavity 23 from the outside, which not only improves the overall hygiene of the charging box 100, but also prevents liquid residue in the receiving cavity 23 from entering the sealed cavity and causing corrosion or short circuit to the motherboard when liquid is present in the receiving cavity 23.

[0039] In some embodiments, the second lower housing 2 includes a side opening 29 disposed in the second housing wall 22, and the side opening 29 communicates with the receiving cavity 23. See details. Figure 1 A side opening 29 is provided on the surface of the second lower housing 2 perpendicular to the second direction Y, fully exposing the receiving cavity 23, allowing the user to insert or remove the device to be charged from the receiving cavity 23 from multiple directions. In an embodiment where the device to be charged is an earphone, the receiving cavity 23 corresponding to the side opening 29 can be used to accommodate the earphone stem portion, and the upper part of the receiving cavity 23 in the third direction Z can be used to accommodate the earphone head portion.

[0040] In some embodiments, the first surface 131 is also inclined relative to the plane perpendicular to the height direction of the first lower housing 1. This not only reduces the volume of the second lower housing 2 disposed in the opening 12 and reduces the weight of the charging box 100, but also increases the volume of the sealed cavity, allowing the sealed cavity to accommodate as many motherboards as possible, which is beneficial to the functional improvement of the charging box 100.

[0041] Furthermore, in other embodiments, the end face 17 and the first surface 131 have the same inclination direction, and at least a portion of the end face 17 coincides with the first surface 131. See details. Figure 1 In this embodiment, at the second wall 112, the end face 17 and the first surface 131 overlap, further reducing the volume of the second lower housing 2 disposed in the opening 12. At the same time, compared with the embodiment where the end face 17 and the first surface 131 do not overlap, the volume of the sealing cavity is further increased.

[0042] With the end face 17 of the first shell wall 11 inclined relative to the plane perpendicular to the height direction of the first lower shell 1, an annular boss 13 is additionally provided in the opening 12. This allows the difficulty of the adhesive dispensing process for forming a sealing layer to be adjusted by changing the inclination angle between the first surface 131 of the annular boss 13 and the plane perpendicular to the height direction of the first shell wall 11. For example, the inclination angle between the first surface 131 of the annular boss 13 and the plane perpendicular to the height direction of the first shell wall 11 can be set to be smaller than the inclination angle of the end face 17 of the first shell wall 11, thereby reducing the difficulty of the process. This is beneficial to reduce the difficulty of the process while maintaining a large inclination angle of the end face 17. Furthermore, the annular boss 13 is located inside the opening 12 and is farther away from the outside relative to the end face 17 of the first shell wall 11, which is more conducive to waterproofing.

[0043] In some embodiments, the first lower housing 1 includes a first groove 113 recessed inward from the end face 17 of the first housing wall 11, and the second lower housing 2 includes a second groove 25 corresponding to the first groove 113. The charging case 100 also includes an upper housing (not shown) and a pivot (not shown), the pivot being fixedly connected to one of the upper housing and the first lower housing 1, and rotatably connected to the other, thereby enabling the charging case 100 to be opened and closed. The first groove 113 and the second groove 25 avoid the upper housing when the upper housing rotates relative to the first lower housing 1, providing rotational space for the pivoting opening and closing of the upper housing. The pivot may be fixedly disposed on the side wall of the first groove 113, or it may be fixedly disposed on the upper housing, which is not limited in this disclosure.

[0044] Similarly, in other embodiments, the pivot may be fixedly connected to one of the upper housing and the second lower housing 2, and rotatably connected to the other. The first groove 113 and the second groove 25 avoid the upper housing when the upper housing rotates relative to the second lower housing 2. The pivot may also be fixedly disposed on the side wall of the second groove 25, or it may be fixed to the upper housing; this disclosure is not limiting. The arrangement of the first groove 113 and the second groove 25 allows the upper housing to have sufficient rotational travel when pivoting to open the charging box 100, thereby exposing the second lower housing 2 to a greater extent, facilitating the placement or removal of the device to be charged from the receiving cavity 23.

[0045] For ease of production, aesthetic requirements, and sealing performance, the first lower housing 1 is typically integrally molded in a mold, achieving integral molding of the first housing wall 11 and the annular boss 13, with the end face 17 of the first housing wall 11 serving as the parting surface. However, in embodiments where the end face 17 of the first housing wall 11 is inclined to a plane perpendicular to the third direction Z, due to the inclination of the end face 17 of the first housing wall 11, and the presence of an angle between the annular boss 13 and the wall of the opening 12, problems such as difficulty in demolding the annular boss 13 and damage to the annular boss 13 may occur during the demolding process of the first lower housing 1. After extensive calculations and production experiments, the inventors discovered that setting the length of the annular boss 13 extending from the first shell wall 11 toward the center of the opening 12 to be greater than or equal to 0.3 mm and less than or equal to 0.7 mm can effectively avoid problems such as the first lower shell 1 sticking to the mold and being difficult to demold during the production process. It also avoids problems such as the sealing plane area between the first surface 131 of the annular boss 13 and the sealing layer being too small, resulting in poor sealing performance, due to an excessively short extension length of the annular boss 13. This disclosure, by reasonably setting the extension length of the annular boss 13, can maximize the sealing plane area between the first surface 131 and the sealing surface 26 while avoiding processing difficulties, thus ensuring the sealing performance of the annular boss 13.

[0046] To further maintain the relative fixation of the first lower housing 1 and the second lower housing 2, thereby maintaining the contact between the sealing surface 26 and the first surface 131 and the sealing layer, and thus maintaining the sealing performance of the charging box 100, in some embodiments, the first lower housing 1 includes a first snap 14 disposed on the first housing wall 11, and the second lower housing 2 includes a second snap 21 that engages with the first snap 14. See details. Figures 2 to 5 The first buckle 14 is configured as a raised cuboid, and the second buckle 21 is configured as a recessed square groove corresponding to the first buckle 14. When the first lower housing 1 and the second lower housing 2 are assembled in place, the first buckle 14 is locked in the second buckle 21, making it difficult for the first lower housing 1 and the second lower housing 2 to move relative to each other, thereby ensuring continuous contact between the sealing surface 26 and the first surface 131 and ensuring the sealing performance of the sealing cavity.

[0047] It should be noted that the first latch 14 in the accompanying drawings is a protruding cuboid, and the second latch 21 is a square groove that mates with the protrusion. This should be taken as an example and not a limitation. The first latch 14 can be a groove of any shape, and the second latch 21 can be a protrusion that mates with the groove. This disclosure does not limit this. Furthermore, the positions of the first latch 14 and the second latch 21 shown in the accompanying drawings should be taken as an example and not a limitation. The first latch 14 can be disposed on the side wall of the first lower housing 1 perpendicular to the first direction X or the second direction Y, or on the bottom wall of the first lower housing 1, and the second latch 21 is disposed corresponding to the position of the first latch 14. This disclosure does not limit this. In addition, the number of the first latch 14 and the second latch 21 in the accompanying drawings should also be taken as an example and not a limitation. Those skilled in the art can set one, three, four, or even more first latches 14 and second latches 21 according to actual needs. This disclosure does not limit this.

[0048] In some embodiments, the first lower housing 1 includes a first guide portion 19 disposed on the first housing wall 11, and the second lower housing 2 includes a second guide portion 27 cooperating with the first guide portion 19, wherein the first guide portion 19 and the second guide portion 27 extend in a third direction Z. See details. Figures 2 to 5 The first guide part 19 is configured as a guide groove, and the second guide part 27 is configured as a protrusion. When the second lower housing 2 is assembled into the opening 12 along the third direction Z, the cooperation of the first guide part 19 and the second guide part 27 can play a guiding role, so that the first lower housing 1 and the second lower housing 2 can be assembled in the correct position.

[0049] Admittedly, the first guide portion 19 can also be configured as a protrusion, and the second guide portion 27 as a guide groove; this disclosure is not limiting. Furthermore, the first guide portion 19 can be disposed on any side wall of the first lower housing 1, and the first lower housing 1 can also be provided with one, two, three, or even more first guide portions 19, with the second guide portions 27 corresponding to the first guide portions 19; this disclosure is not limiting.

[0050] For details, please refer to the following: Figure 6In the above embodiments, the second lower housing 2 includes a first opening 24 connecting the receiving cavity 23 and the sealed cavity; the charging box 100 also includes an electrical contact 4 and a first sealing member 5. The electrical contact 4 is electrically connected to the motherboard 3 and passes through the first opening 24, and the first sealing member 5 surrounds the outer periphery of the electrical contact 4. In embodiments where the device to be charged needs to be inserted into the first opening 24 to contact the electrical contact 4 for charging, the electrical contact 4 is disposed in the first opening 24 and is not exposed in the receiving cavity 23; while in embodiments where the electrical contact 4 passes through the first opening 24 and extends into the receiving cavity 23, the device to be charged only needs to be placed in the receiving cavity 23 to contact the electrical contact 4 for charging. The first sealing member 5 can prevent liquid from entering the sealed cavity through the first opening 24 when the device to be charged has liquid on its surface and is placed in the receiving cavity 23, thus avoiding corrosion of the motherboard 3 or short circuits. Furthermore, in embodiments where the charging box 100 does not have an upper shell, when no device to be charged is placed in the receiving cavity 23, the first seal 5 can prevent liquid from entering the sealed cavity through the first opening 24 and causing damage to the charging box 100 if the charging box 100 accidentally comes into contact with liquid.

[0051] The first seal 5 and the electrical contact 4 can be an interference fit, thereby preventing the existence of gaps between the first seal 5 and the electrical contact 4 that would allow liquids or other substances to flow into the sealing cavity through the gaps, thus further improving the sealing performance of the first seal 5.

[0052] It should be understood that Figure 6 The embodiment shown only provides a first seal 5 at the position where the diameter of the first opening 24 is smaller, but this should be taken as an example and not a limitation. Those skilled in the art can set the number and position of the first seal 5 as needed, for example, set the first seal 5 at the position where the diameter of the first opening 24 is larger, or make the first seal 5 completely surround the electrical contact 4 provided in the first opening 24, etc. This disclosure is not limited.

[0053] For details, please refer to the following: Figure 6 In some embodiments, the charging box 100 includes a magnet 6 for attracting a device to be charged that is compatible with the charging box 100. The magnet 6 may be disposed within a sealed cavity and in contact with the second lower housing 2, or it may be disposed within the second lower housing 2; this disclosure is not limiting. The magnet 6 includes a second opening 61, and the charging box 100 includes a second sealing member 9 disposed within the second opening 61, through which the electrical contacts 4 pass. Regarding the placement of the magnet 6, ... Figure 6For example, in the embodiment, the second lower housing 2 may include a groove 28 communicating with the sealing cavity. The magnet 6 may be disposed in the groove 28, or it may be partially disposed in the groove 28 and the rest disposed in the sealing cavity. However, in general, after the second lower housing 2 is assembled with the first lower housing 1, since the groove 28 can be used to form part of the sealing cavity, the magnet 6 is disposed in the sealing cavity. Of course, in some other embodiments, the groove 28 may also be located on the side away from the sealing cavity. In this case, the magnet 6 can be considered to be disposed in the second lower housing 2. The specific design can be customized as needed, and this disclosure is not limiting.

[0054] By incorporating a magnet 6 within the charging case 100 and correspondingly attaching a magnetic component to the device to be charged, the device can be attracted to the charging case 100, increasing the connection stability between the charging case 100 and the device and maintaining continuous contact between the device and the electrical contact 4, thus improving charging efficiency. A second seal 9 is disposed between the inner walls of the electrical contact 4 and the second opening 61, preventing liquids, dust, and other substances entering through the first opening 24 from further flowing into the sealed cavity through the gaps between the second seal 9 and the electrical contact 4, and between the second seal 9 and the second opening 61. Furthermore, the second seal 9 can abut against the end face of the first opening 24 near the sealed cavity, thereby preventing liquids and dust from entering the sealed cavity through the first opening 24. Additionally, the second seal 9 can form an interference fit with both the electrical contact 4 and the second opening 61. This interference fit further reduces the gaps between the second seal 9 and the electrical contact 4, and between the second seal 9 and the second opening 61, further improving the sealing performance of the second seal 9 and thus enhancing the waterproof performance of the charging case 100.

[0055] refer to Figure 7 In the above embodiments, the first lower housing 1 includes a third opening 16 communicating with the sealed cavity. The charging case 100 also includes an electrical connector 7 and a third sealing element 8. The electrical connector 7 is electrically connected to the motherboard 3 with its interface facing the third opening 16. The third sealing element 8 is disposed on the motherboard 3 and surrounds the outer periphery of the electrical connector 7. The first lower housing 1 abuts against the end face of the third sealing element 8 away from the motherboard 3. Specifically, the electrical connector 7 and the third sealing element 8 extend in the same direction as the motherboard 3, and the first lower housing 1 abuts against the end face of the third sealing element 8 away from the motherboard 3 in the extending direction of the third sealing element 8. The electrical connector 7 is used to charge or supply power to the charging case 100. By providing the third sealing element 8 around the electrical connector 7, and the first lower housing 1 abutting against the third sealing element 8, liquids, dust, and other substances can be prevented from entering the sealed cavity through the gap between the first lower housing 1 and the electrical connector 7, thus preventing them from affecting the motherboard 3. The electrical connector 7 can be a common USB connector, and this disclosure is not limited thereto.

[0056] In some embodiments, the lengths of the third seal 8 and the electrical connector 7 extending from the self-plate 3 are equal, or the length of the third seal 8 extending from the self-plate 3 is slightly greater than the length of the electrical connector 7 extending from the self-plate 3. This allows the first lower housing 1 to abut against the end face of the third seal 8 facing away from the main board 3 in the extending direction of the third seal 8, while the end face of the third seal 8 facing the main board 3 can abut against the main board 3. Therefore, the third seal 8 is fixed between the main board 3 and the first lower housing 1, preventing the third seal 8 from moving during the use of the charging box 100, thus avoiding a decrease in sealing performance. Furthermore, this arrangement results in a tighter seal between the third seal 8 and the first lower housing 1, preventing liquids, dust, and other substances from entering the sealing cavity through the gap between the first lower housing 1 and the third seal 8, thereby improving sealing performance.

[0057] The third seal 8 and the electrical connector 7 can be an interference fit, allowing the third seal 8 to more tightly surround the electrical connector 7 and further improve the sealing performance. The third seal 8 can be a rubber sealing ring, a silicone sealing ring, a polyurethane sealing ring, etc., and this disclosure is not limited thereto.

[0058] It should be noted that, in Figure 1 In the illustrated embodiment, the third opening 16 is located at the bottom of the charging box 100, i.e., below it in the third direction Z. However, this should be considered exemplary and not limiting. The third opening 16 can also be located on the wall in the first direction X or the second direction Y, and this disclosure is not limiting. For example, in an embodiment where the charging box 100 is a landline charging box 100, and the charging box 100 is placed on a table for a long time on the wall in the third direction Z, by providing the third opening 16 on the wall in the first direction X or the second direction Y, power can be supplied to the charging box 100 while it is kept on the table.

[0059] In some embodiments, the first lower housing 1 includes a lower housing body 15 and a decorative ring 18 assembled with the lower housing body 15. The decorative ring 18 forms a third opening 16. The decorative ring 18 may abut against the end face of the third sealing member 8 away from the motherboard 3; or both the decorative ring 18 and the lower housing body 15 may abut against the end face of the third sealing member 8 away from the motherboard 3. This disclosure is not limiting. By providing the decorative ring 18, the aesthetics of the charging case 100 can be improved, and the user can be prevented from being scratched if the electrical connector 7 or the first lower housing 1 has sharp edges, thus improving the safety of the charging case 100.

[0060] A second aspect of this disclosure provides a device assembly including a device to be charged and a charging case 100 as described in any of the foregoing embodiments, wherein the device to be charged is disposed in a second lower housing 2. The device to be charged may be an electronic device such as a mobile phone, wireless headset, landline phone, or tablet computer. The second lower housing 2 includes a receiving cavity 23, in which the device to be charged can be placed to contact an electrical contact 4, thereby electrically connecting to the charging case 100 for charging.

[0061] The shape of the charging box shown in the accompanying drawings of this disclosure should be taken as an example and not as a limitation. Those skilled in the art can set the shape of the charging box according to the actual shape and structure of the device to be charged. This disclosure is not limiting.

[0062] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0063] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A charging case, characterized in that, include: The first lower housing includes a first shell wall, an opening formed by the first shell wall, and an annular protrusion extending from the first shell wall toward the center of the opening. The second lower housing is at least partially located inside the opening, and the second lower housing includes a sealing surface facing the bottom of the opening, the sealing surface being disposed opposite to the first surface of the annular boss that is away from the bottom of the opening; A sealing layer is disposed between the sealing surface and the first surface and is connected to the sealing surface and the first surface. The second lower housing and the sealing layer close a portion of the opening to form a sealed cavity. A motherboard, wherein the motherboard is disposed within the sealed cavity; The second lower housing is in contact with the end face of the first housing wall, and the end face of the first housing wall is inclined relative to a plane perpendicular to the height direction of the first lower housing; the first surface is inclined relative to a plane perpendicular to the height direction of the first lower housing; the inclination angle between the first surface of the annular boss and the plane perpendicular to the height direction of the first housing wall is set to be smaller than the inclination angle of the end face of the first housing wall.

2. The charging case according to claim 1, characterized in that, The end face has the same inclination direction as the first surface, and at least a portion of the end face of the first shell wall coincides with the first surface.

3. The charging case according to claim 1, characterized in that, The second lower housing includes a second shell wall, a receiving cavity enclosed by the second shell wall, and a side opening disposed on the second shell wall, the side opening communicating with the receiving cavity.

4. The charging case according to claim 1, characterized in that, The first lower housing further includes a first groove recessed inward from the end face of the first housing wall, and the second lower housing includes a second groove corresponding to the first groove; The charging box further includes an upper shell and a rotating shaft. The rotating shaft is fixedly connected to one of the upper shell and the first lower shell and rotatably connected to the other. The first groove and the second groove avoid the upper shell when the upper shell rotates relative to the first lower shell. Alternatively, the rotating shaft is fixedly connected to one of the upper shell and the second lower shell and rotatably connected to the other. The first groove and the second groove avoid the upper shell when the upper shell rotates relative to the second lower shell.

5. The charging case according to claim 1, characterized in that, The first lower housing includes a first buckle disposed on the first housing wall, and the second lower housing includes a second buckle that engages with the first buckle.

6. The charging case according to claim 1, characterized in that, The first lower housing includes a first guide portion disposed on the first housing wall, and the second lower housing includes a second guide portion that cooperates with the first guide portion. The first guide portion and the second guide portion extend parallel to the depth direction of the opening.

7. The charging case according to claim 1, characterized in that, The length of the annular protrusion extending from the first shell wall toward the center of the opening is greater than or equal to 0.3 mm and less than or equal to 0.7 mm.

8. The charging case according to claim 1, characterized in that, The second lower housing includes a second shell wall, a receiving cavity enclosed by the second shell wall, and a first opening communicating with the receiving cavity and the sealed cavity; The charging box also includes an electrical contact and a first seal. The electrical contact is electrically connected to the motherboard and passes through the first opening. The first seal interference-surrounds the outer periphery of the electrical contact.

9. The charging case according to claim 8, characterized in that, Also includes: A magnet, used to attract the device to be charged that is compatible with the charging box; The magnet is disposed in the sealed cavity and contacts the second lower housing. Alternatively, the magnet is disposed within the second lower housing, and the magnet includes a second opening; The charging box also includes a second seal that is interference-fitted into the second opening, and the electrical contacts pass through the second seal.

10. The charging case according to claim 1, characterized in that, The first lower housing includes a third opening communicating with the sealed cavity, and the charging box further includes: An electrical connector, wherein the electrical connector is electrically connected to the motherboard and the connector faces the third opening; A third seal is disposed on the motherboard and interference-fits the outer periphery of the electrical connector, and the first lower housing abuts against the end face of the third seal away from the motherboard.

11. The charging case according to claim 10, characterized in that, The first lower housing includes a lower housing body and a decorative ring assembled with the lower housing body. The decorative ring forms the third opening and abuts against the end face of the third sealing member away from the main board; or both the decorative ring and the lower housing body abut against the end face of the third sealing member away from the main board.

12. A device component, characterized in that, It includes a device to be charged and a charging box as described in any one of claims 1-11, wherein the device to be charged is disposed in the second lower housing.

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