Charging device

Abstract

The embodiment of the utility model discloses charging equipment. The charging equipment comprises a shell assembly, a circuit board, an interface seat and a sealing element, the shell assembly is provided with a containing cavity and a communicating hole, and the containing cavity communicates with the outside through the communicating hole; the circuit board is arranged in the accommodating cavity; one part of the interface seat is arranged in the accommodating cavity and electrically connected with the circuit board, and the other part of the interface seat extends into the communicating hole; the interface seat is provided with an output interface which is communicated with the communicating hole; the sealing piece is clamped between the hole wall of the communicating hole and the outer side wall of the connector base in a sealed mode. By arranging the sealing element, the gap between the hole wall of the communicating hole and the outer side wall of the interface seat is sealed by the sealing element, so that the sealing performance of the accommodating cavity is relatively good, and the pouring sealant basically cannot seep from the space between the hole wall of the communicating hole and the outer side wall of the interface seat; the glue cutting step is omitted in the whole production process of the charging equipment, so that the production efficiency of the charging equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic accessories, and in particular to a charging device. Background Art

[0002] A charging device is a component used to charge electronic devices. It typically consists of a housing assembly and a circuit board, which is located within the housing assembly. To improve the stability, durability, and safety of the circuit board, it is necessary to glue the circuit board.

[0003] In the charging device in the related art, due to structural limitations, the circuit board needs to be filled with glue first and then installed in the shell assembly. If too much glue is poured, the circuit board may interfere with other components of the charging device during installation inside the shell assembly. Therefore, the circuit board needs to be cut to ensure that the circuit board after filling has a suitable size to meet the assembly requirements inside the shell assembly, which makes the production efficiency of the charging device relatively low. Utility Model Content

[0004] In view of this, an embodiment of the present application hopes to provide a charging device, aiming to improve the production efficiency of the charging device.

[0005] To solve the above problems, the technical solution of the embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a charging device, including:

[0007] The housing assembly is provided with a receiving cavity and a communicating hole, wherein the receiving cavity is communicated with the outside through the communicating hole;

[0008] A circuit board is arranged in the accommodating cavity;

[0009] An interface seat, one portion of which is disposed in the accommodating cavity and electrically connected to the circuit board, and the other portion of which extends into the communication hole; the interface seat is provided with an output interface, the output interface being in communication with the communication hole and being used for electrically connecting to an electronic terminal device;

[0010] Wherein, the charging device further includes a sealing member, which is sealingly clamped between the hole wall of the communicating hole and the outer side wall of the interface seat.

[0011] In some embodiments, the sealing member is interference fit with the hole wall of the communicating hole and / or the outer side wall of the interface seat.

[0012] In some embodiments, the sealing member is annular and is sleeved on the interface seat.

[0013] In some embodiments, the hole wall of the communicating hole includes a first stop wall facing the accommodating cavity, the first stop wall extends along the circumference of the communicating hole, and one side of the sealing member abuts against the first stop wall.

[0014] In some embodiments, the communicating hole includes a first sub-hole and a second sub-hole, and the first sub-hole is connected to the accommodating cavity through the second sub-hole;

[0015] The aperture of the first sub-hole is smaller than that of the second sub-hole, and a step surface is formed at the connection point between the first sub-hole and the second sub-hole, and the step surface constitutes the first stop wall.

[0016] In some embodiments, along the axial direction of the communicating hole, a gap is formed between a side of the interface seat close to the first stop wall and the first stop wall;

[0017] Alternatively, a side of the sealing member close to the first stop wall is exposed on a side of the interface seat close to the first stop wall.

[0018] In some embodiments, the outer side wall of the interface seat includes a second stop wall, the second stop wall is arranged opposite to the first stop wall, and the other side of the sealing member abuts against the second stop wall.

[0019] In some embodiments, a surface of the sealing member facing away from the first stopping wall is exposed on the second stopping wall, and a portion of the sealing member exposed on the second stopping wall abuts against a side wall of the circuit board.

[0020] In some embodiments, along the radial direction of the communicating hole, the inner side of the first stopping wall is exposed to the inner side of the sealing component.

[0021] In some embodiments, a portion of the sealing member is sealed and clamped between the hole wall of the communicating hole and the outer side wall of the interface seat, and another portion is exposed at one end of the communicating hole close to the accommodating cavity.

[0022] The charging device of the embodiment of the present application is provided with a sealant that seals the gap between the wall of the communicating hole and the outer wall of the interface seat. This provides relatively good sealing of the receiving cavity, and the potting compound essentially does not leak from between the wall of the communicating hole and the outer wall of the interface seat. Therefore, during the production of the charging device, the circuit board can be installed in the receiving cavity of the housing assembly before potting. The various components of the charging device can be installed before potting. That is, there is no need to install the components after potting, and thus no interference issues will arise during component installation. As a result, the entire production process of the charging device eliminates the step of cutting the glue, thereby improving the production efficiency of the charging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a charging device according to an embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view of the charging device shown;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 2 An enlarged schematic diagram of point A in the middle, wherein the seal is not shown;

[0027] Figure 5 for Figure 2 A magnified schematic diagram of point B in the middle;

[0028] Figure 6 for Figure 1 An exploded view of the charging device is shown, wherein only the first sub-shell and the second sub-shell are exploded and unfolded;

[0029] Figure 7 This is a schematic structural diagram of a second sub-shell according to an embodiment of the present application;

[0030] Figure 8 This is a schematic diagram of the assembly of a sealing member and an interface seat according to an embodiment of the present application.

[0031] Description of Reference Numerals

[0032] 10. Shell assembly; 10a. Accommodating cavity; 11. First subshell; 11a. Cavity; 11b. Connecting hole; 11b1. First subhole; 11b2. Second subhole; 11c. Insertion protrusion; 11d. First stop wall; 12. Second subshell; 12a. Card slot; 20. Circuit board; 30. Interface seat; 30a. Output interface; 31. Second stop wall; 40. Sealing member. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical solutions of the present application and are therefore only used as examples and are not intended to limit the scope of protection of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0034] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0035] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0037] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0039] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] An embodiment of the present application provides a charging device.

[0041] The charging device can be used to charge electronic terminal devices.

[0042] Among them, charging devices include but are not limited to power adapters, chargers, mobile power supplies or other electronic devices that can supply power. Electronic terminal devices include but are not limited to mobile phones, tablet computers, desktop computers, laptop computers, handheld computers, notebook computers, ultra-mobile personal computers (UMPC), netbooks, as well as cellular phones, personal digital assistants (PDAs), augmented reality (AR) devices, virtual reality (VR) devices, artificial intelligence (AI) devices, wearable devices, home appliances or other electrical devices. For the convenience of description, please refer to Figure 1 In the embodiment of the present application, the charging device is taken as an example to be demonstrated as a charger.

[0043] See also Figures 1 to 3 The charging device includes a housing assembly 10 , a circuit board 20 and an interface seat 30 .

[0044] The housing assembly 10 is a housing of the charging device.

[0045] The housing assembly 10 is provided with a receiving cavity 10a, which can be used to receive other components of the charging device. For example, the circuit board 20 is provided in the receiving cavity 10a.

[0046] The interface socket 30 is provided with an output interface 30a, which is used to electrically connect to an electronic terminal device. One end of a cable can be inserted into the output interface 30a for connection, while the other end of the cable can be inserted into and connected to a charging port on the electronic terminal device. The output interface 30a and the charging port are not limited to any specific embodiment; for example, both can be Universal Serial Bus (USB) interfaces, such as a USB Type-C interface.

[0047] The housing assembly 10 also has a communication hole 11b, through which the accommodating cavity 10a communicates with the outside. A portion of the interface socket 30 is located within the accommodating cavity 10a and electrically connected to the circuit board 20, while the other portion extends into the communication hole 11b. The output interface 30a is connected to the communication hole 11b. This allows the output interface 30a to communicate with the outside through the communication hole, allowing one end of a cable to be inserted into the output interface 30a through the communication hole and connected.

[0048] Please refer to Figure 3 and Figure 4The charging device further includes a seal 40, which is sealed and sandwiched between the hole wall of the communicating hole 11b and the outer wall of the interface seat 30. In this way, the seal 40 can effectively seal the gap between the hole wall of the communicating hole 11b and the outer wall of the interface seat 30.

[0049] The material of the sealing member 40 is not limited. For example, the material of the sealing member 40 includes but is not limited to soft materials that can undergo elastic deformation, such as silicone and rubber.

[0050] In order to improve the stability, durability and safety of the circuit board 20, it is necessary to perform a glue filling process on the circuit board 20. In the charging device of the related art, since there is no seal between the outer wall of the interface seat and the hole wall of the communication hole, the sealing performance of the accommodating cavity is relatively poor. If the circuit board is first installed in the accommodating cavity and then filled with glue, the gap between the outer wall of the interface seat and the hole wall of the communication hole may cause glue leakage. If the circuit board is first filled with glue and then installed in the housing assembly, if too much glue is poured, the circuit board may interfere with other components of the charging device during installation inside the housing assembly. Therefore, the circuit board needs to be cut to meet the assembly size requirements, resulting in relatively low production efficiency of the charging device.

[0051] In the charging device of the embodiment of the present application, a sealant 40 is provided to seal the gap between the wall of the communicating hole 11b and the outer wall of the interface seat 30. This provides relatively good sealing of the accommodating cavity 10a, and the potting compound essentially does not leak from between the wall of the communicating hole 11b and the outer wall of the interface seat 30. Therefore, during production of the charging device, the circuit board 20 can be installed within the accommodating cavity 10a of the housing assembly 10 before potting. The various components of the charging device can be installed before potting. This means that there is no need to install the components after potting, thus eliminating interference issues during component installation. Consequently, the entire production process of the charging device eliminates the need for cutting the potting compound, thereby improving the production efficiency of the charging device.

[0052] The structure of the sealing member 40 is not limited.

[0053] For some examples, see Figure 8 The sealing member 40 is annular and is sleeved on the interface seat 30 .

[0054] Here, the annular seal 40 has an inner wall and an outer wall. The inner wall of the seal 40 is sealed with the outer wall of the interface seat 30, and the outer wall of the seal 40 is sealed with the hole wall of the communicating hole 11b.

[0055] In this embodiment, the seal 40 can extend 360° along the circumference of the connecting hole 11b, that is, any position between the hole wall of the connecting hole 11b and the outer wall of the interface seat 30 in the circumference of the connecting hole 11b can be sealed by the seal 40, thereby helping to further improve the sealing effect between the hole wall of the connecting hole 11b and the outer wall of the interface seat 30.

[0056] For some examples, see Figure 2 and Figure 3 The sealing member 40 is interference fit with the hole wall of the communicating hole 11b.

[0057] The interference fit sealing structure can fully utilize the elasticity of the seal 40 so that the seal 40 can produce a certain amount of deformation during installation and fit tightly against the hole wall of the communicating hole 11b, thereby improving the sealing effect of the seal 40.

[0058] For some examples, see Figure 2 、 Figure 3 and Figure 8 The sealing member 40 is interference fit with the outer side wall of the interface seat 30 .

[0059] As described above, the use of an interference fit sealing structure can improve the sealing effect between the sealing member 40 and the outer side wall of the interface seat 30 .

[0060] In addition, in the embodiment where the seal 40 is sleeved on the interface seat 30, due to the interference fit between the seal 40 and the outer wall of the interface seat 30, a certain clamping force is generated, which is beneficial to improving the stability and reliability of the installation of the seal 40 on the interface seat 30.

[0061] In some embodiments, please refer to Figures 2 to 4 The hole wall of the communicating hole 11b includes a first stop wall 11d facing the accommodating cavity 10a. The first stop wall 11d extends along the circumference of the communicating hole 11b. One side of the sealing member 40 abuts against the first stop wall 11d.

[0062] The first stopper wall 11 d limits one side of the sealing member 40 , thereby reducing the possibility of the first stopper wall 11 d coming out of the communicating hole 11 b .

[0063] The length of the first stop wall 11d extending along the circumference of the communicating hole 11b is not limited. For example, the first stop wall 11d extends along the circumference of the communicating hole 11b for a full circle, i.e., the first stop wall 11d is connected end to end and forms a circular ring. The first stop wall 11d can stop the seal 40 at any position along the circumference of the communicating hole 11b, thereby improving the stopping effect of the first stop wall 11d on the seal 40.

[0064] In other embodiments, the angle at which the first stop wall 11d extends along the circumference of the communicating hole 11b is less than 360 degrees, i.e., the first extension section is not connected end to end. In this embodiment, the number of first stop walls 11d is not limited. For example, there may be one or more first stop walls 11d. When there are multiple first stop walls 11d, the multiple first stop walls 11d may be arranged at equal or unequal intervals along the circumference of the communicating hole 11b.

[0065] The structure of the first stopper wall 11d is not limited.

[0066] For some examples, see Figures 2 to 4 The connecting hole 11b includes a first sub-hole 11b1 and a second sub-hole 11b2, and the first sub-hole 11b1 is connected to the accommodating cavity 10a through the second sub-hole 11b2; wherein, the aperture of the first sub-hole 11b1 is smaller than the aperture of the second sub-hole 11b2, and a step surface is formed at the connecting point of the first sub-hole 11b1 and the second sub-hole 11b2, and the step surface constitutes the first stop wall 11d.

[0067] Here, the apertures of the first sub-holes 11b1 and second sub-holes 11b2 on either side of the first stop wall 11d are not identical. Therefore, a stepped surface is formed at the connection point between the first sub-hole 11b1 and the second sub-hole 11b2. This stepped surface serves as the first stop wall 11d, facilitating the molding of the first stop wall 11d. Furthermore, during demolding of the connecting hole 11b, the mold can be ejected from the mold toward the second sub-hole 11b2 via the first sub-hole 11b1, further facilitating demolding.

[0068] In other embodiments, at least a portion of the hole wall of the communicating hole 11 b protrudes in the radial direction of the communicating hole 11 b , and the protruding portion is formed to form the first stop wall 11 d .

[0069] For some examples, see Figures 2 to 4 Along the axial direction of the communicating hole 11b, there is a gap between the side of the interface seat 30 close to the first stop wall 11d and the first stop wall 11d.

[0070] In other words, the side of the sealing member 40 close to the first stop wall 11 d is exposed on the side of the interface seat 30 close to the first stop wall 11 d.

[0071] During the assembly process, the seal 40 is first mounted on the interface seat 30 as a whole, and the whole is then placed in the accommodating cavity 10a. When the seal 40 touches the first stop wall 11d, it indicates that the interface seat 30 has also been installed in place. At this time, there is still a certain gap between the end wall of the interface seat 30 and the first stop wall 11d, and there will be no contact between the interface seat 30 and the first stop wall 11d, which is beneficial to reduce the risk of damage to the interface seat 30, thereby helping to improve the yield rate of the charging equipment.

[0072] Specifically, see Figure 8 After the sealing member 40 is installed on the interface seat 30 , the sealing member 40 exceeds the end wall of the interface seat 30 .

[0073] Furthermore, in this embodiment, the seal 40 forms a primary seal against the peripheral wall of the second sub-hole 11b2, and a secondary seal against the first stop wall 11d. This dual seal enhances the sealing effect of the connecting hole 11b. Furthermore, the second sub-hole 11b2 and the first stop wall 11d form a corner, which increases resistance to fluid flow, further enhancing the sealing effect of the connecting hole 11b.

[0074] For some examples, see Figures 2 to 4 、 Figure 8 The outer side wall of the interface seat 30 includes a second stop wall 31 , which is arranged opposite to the first stop wall 11 d , and the other side of the sealing member 40 abuts against the second stop wall 31 .

[0075] The opposite sides of the seal 40 are stopped by the first stop wall 11d and the second stop wall 31 respectively. In this way, the seal 40 is difficult to move in both axial directions of the connecting hole 11b, which is beneficial to improving the stability and reliability of the installation of the seal 40.

[0076] For some examples, see Figures 2 to 4 、 Figure 8 The surface of the sealing member 40 facing away from the first stopping wall 11 d is exposed on the second stopping wall 31 , and the portion of the sealing member 40 exposed on the second stopping wall 31 abuts against the side wall of the circuit board 20 .

[0077] Here, the side of the sealing member 40 facing away from the first stop wall 11 d abuts against both the second stop wall 31 and the side wall of the circuit board 20 .

[0078] Please refer to Figure 3 In this embodiment, the radial dimension of the seal 40 is increased within the communicating hole 11b, thereby enhancing the sealing effect between the outer wall of the interface base 30 and the wall of the communicating hole 11b. Furthermore, the portion of the seal 40 that extends beyond the outer edge of the second stop wall 31 is stopped by the circuit board 20, thereby improving the stability and reliability of the seal 40 installation.

[0079] For some examples, see Figure 6 The shell assembly 10 includes a first sub-shell 11 and a second sub-shell 12. The first sub-shell 11 is provided with a cavity 11a and a communicating hole 11b. One side of the cavity 11a is open. The second sub-shell 12 is provided on the open side of the cavity 11a and is surrounded by the cavity wall of the cavity 11a to form a receiving cavity 10a.

[0080] Cavity 11a can be understood as the space formed by opening one side of accommodating chamber 10a. When first sub-shell 11 and second sub-shell 12 are separated, one side of accommodating chamber 10a is open, thereby facilitating installation of the entire assembly consisting of connector 30 and seal 40, circuit board 20, and other charging device components within accommodating chamber 10a.

[0081] After the interface seat 30 and the seal 40 as a whole, the circuit board 20 and other components of the charging device are installed in the accommodating cavity 10a, the second sub-shell 12 and the first sub-shell 11 are connected together, so that the accommodating cavity 10a is formed into a relatively sealed structure.

[0082] For some examples, see Figure 6 and Figure 7 One of the first sub-shell 11 and the second sub-shell 12 is provided with a card slot 12a, and part of the structure of the other is provided in the card slot 12a; wherein the card slot 12a extends along the docking direction of the first sub-shell 11 and the second sub-shell 12.

[0083] Specifically, see Figure 7 , the second sub-shell 12 is provided with a card slot 12a as an example for description.

[0084] The first sub-shell 11 is further provided with an inserting protrusion 11 c , which is disposed in the card slot 12 a .

[0085] The combination of the plug-in protrusion 11c and the card slot 12a is conducive to improving the sealing effect of the connection between the first sub-shell 11 and the second sub-shell 12; at the same time, the card slot 12a limits the plug-in protrusion 11c, which can effectively improve the shaking problem between the first sub-shell 11 and the second sub-shell 12. During use, the charging device basically does not produce abnormal noise, and the user experience is better.

[0086] The specific structure of the inserting protrusion 11c is not limited.

[0087] For example, see Figure 6 The plug-in protrusion 11c extends along the circumference of the first sub-shell 11, that is, the plug-in protrusion 11c is connected end to end. In this way, the first sub-shell 11 and the second sub-shell 12 can be matched in the circumferential direction through the plug-in protrusion 11c and the card slot 12a, which is conducive to further improving the matching effect between the plug-in protrusion 11c and the card slot 12a.

[0088] For example, the insertion protrusions 11c may extend along the circumference of the first sub-shell 11 at an angle less than 360°, i.e., the insertion protrusions 11c are not connected end to end. In this embodiment, the number of insertion protrusions 11c is not limited. For example, there may be one or more insertion protrusions 11c. When there are multiple insertion protrusions 11c, the multiple insertion protrusions 11c may be arranged at equal or unequal intervals along the circumference of the first sub-shell 11.

[0089] It is understandable that the extending length of the card slot 12a on the second sub-shell 12 is consistent with that of the plug-in protrusion 11c, and this application will not elaborate on this.

[0090] For some examples, see Figure 3 and Figure 4 In the radial direction of the communicating hole 11b, the inner side of the first stopper wall 11d is exposed to the inner side of the sealing member 40. In other words, in the radial direction of the communicating hole 11b, a portion of the first stopper wall 11d near the inner side thereof does not abut against the sealing member 40.

[0091] It is understood that the inner side of the first stop wall 11d is connected to the peripheral wall of the first sub-hole 11b1. If the inner side of the seal 40 extends beyond the inner side of the first stop wall 11d, the seal 40 will be directly exposed to the external environment through the first sub-hole 11b1, making the seal 40 more susceptible to aging problems. In this embodiment, the first stop wall 11d effectively shields the seal 40, thereby improving the aging effect of the seal 40 and increasing its service life. The seal 40 can be more stably sandwiched between the hole wall of the connecting hole 11b and the outer wall of the interface seat 30, thereby reducing the possibility of the interface seat 30 shaking.

[0092] For some examples, see Figure 3 and Figure 4 A portion of the sealing member 40 is sealed and sandwiched between the hole wall of the communicating hole 11b and the outer wall of the interface seat 30, and the other portion is exposed at one end of the communicating hole 11b close to the accommodating cavity 10a.

[0093] Specifically, when the connecting hole 11b includes a first sub-hole 11b1 and a second sub-hole 11b2, along the axial direction of the connecting hole 11b, the size of the sealing member 40 is larger than the size of the second sub-hole 11b2. After the sealing member 40 is arranged in the second sub-hole 11b2, a portion of the sealing member 40 will extend from the second sub-hole 11b2 and be located in the accommodating cavity 10a.

[0094] In this embodiment, the end of the connecting hole 11b close to the accommodating chamber 10a can be completely sealed by the sealing member 40, making it more difficult for the fluid to enter the connecting hole 11b through the end of the connecting hole 11b close to the accommodating chamber 10a, and further more difficult to seep out through the connecting hole 11b, thereby further improving the sealing effect of the sealing member 40 on the connecting hole 11b.

[0095] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A charging device, characterized in that: include: The housing assembly is provided with a receiving cavity and a communicating hole, wherein the receiving cavity is communicated with the outside through the communicating hole; A circuit board is arranged in the accommodating cavity; An interface seat, one portion of which is disposed in the accommodating cavity and electrically connected to the circuit board, and the other portion of which extends into the communication hole; the interface seat is provided with an output interface, the output interface being in communication with the communication hole and being used for electrically connecting to an electronic terminal device; Wherein, the charging device further includes a sealing member, which is sealingly clamped between the hole wall of the communicating hole and the outer side wall of the interface seat.

2. The charging device according to claim 1, characterized in that The sealing member is interference-fitted with the hole wall of the communicating hole and / or the outer side wall of the interface seat.

3. The charging device according to claim 1, characterized in that The sealing member is annular and is sleeved on the interface seat.

4. The charging device according to claim 1, characterized in that The hole wall of the communicating hole includes a first stop wall facing the accommodating cavity, the first stop wall extends along the circumference of the communicating hole, and one side of the sealing member abuts against the first stop wall.

5. The charging device according to claim 4, characterized in that: The communicating hole includes a first sub-hole and a second sub-hole, and the first sub-hole is connected to the accommodating cavity through the second sub-hole; The aperture of the first sub-hole is smaller than that of the second sub-hole, and a step surface is formed at the connection point between the first sub-hole and the second sub-hole, and the step surface constitutes the first stop wall.

6. The charging device according to claim 4, characterized in that Along the axial direction of the communicating hole, a gap is formed between the side of the interface seat close to the first stop wall and the first stop wall; Alternatively, a side of the sealing member close to the first stop wall is exposed on a side of the interface seat close to the first stop wall.

7. The charging device according to claim 4, characterized in that: The outer side wall of the interface seat includes a second stop wall, which is arranged opposite to the first stop wall, and the other side of the sealing member abuts against the second stop wall.

8. The charging device according to claim 7, characterized in that: A surface of the sealing member facing away from the first stopping wall is exposed on the second stopping wall, and a portion of the sealing member exposed on the second stopping wall abuts against a side wall of the circuit board.

9. The charging device according to claim 4, characterized in that: Along the radial direction of the communicating hole, the inner side of the first stopping wall is exposed to the inner side of the sealing component.

10. The charging device according to claim 1, characterized in that: A portion of the sealing member is sealingly sandwiched between the hole wall of the communicating hole and the outer side wall of the interface seat, and the other portion is exposed at one end of the communicating hole close to the accommodating cavity.

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