Camera battery charging device

Abstract

The utility model relates to the technical field of battery charging, and relates to a camera battery charging device. The camera battery charging device comprises a shell, a battery holder, a master control circuit board, a functional circuit board, a power management module, a memory card identification module and an interface circuit module, the battery holder is used for accommodating a camera battery, and the battery holder is arranged in the shell; the main control circuit board and the functional circuit board are arranged in the shell; the power management module is used for charging a battery on the battery holder, is arranged on the main control circuit board, is connected with the interface circuit module, and performs electric energy transmission with an external power supply end through the interface circuit module; the memory card identification module is used for communicating with an external memory card, the memory card identification module and the interface circuit module are both arranged on the functional circuit board, and the memory card identification module is connected with the interface circuit module and performs data transmission with the outside through the interface circuit module. The working stability of the camera battery charging device is improved, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging, in particular to a camera battery charging device. Background Art

[0002] With the development of science and technology, the quality of photographic equipment has also been rapidly improved. People are increasingly fond of recording their lives through photography.

[0003] For ease of use, photographic equipment typically uses rechargeable batteries. When the battery runs out of power, people use a corresponding battery charging device to recharge the battery.

[0004] Some existing battery charging devices have both charging and memory card recognition functions, can accommodate camera batteries and memory cards, and perform data transfer with the memory cards. However, data transmission and charging in battery charging devices can interfere with each other, resulting in unstable operation of the battery charging device and a poor user experience. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a camera battery charging device to solve the problems of unstable operation and poor user experience of battery charging devices in the prior art.

[0006] The utility model discloses a camera battery charging device, comprising a housing, a battery holder, a main control circuit board, a functional circuit board, a power management module, a memory card identification module and an interface circuit module, wherein:

[0007] The battery holder is used to store camera batteries, and the battery holder is arranged in the housing;

[0008] The main control circuit board and the functional circuit board are both arranged in the housing;

[0009] The power management module is used to charge the battery on the battery holder. The power management module is arranged on the main control circuit board and is connected to the interface circuit module, and transmits power to the external power supply end through the interface circuit module;

[0010] The memory card identification module is used to communicate with an external memory card. The memory card identification module and the interface circuit module are both arranged on the functional circuit board. The memory card identification module is connected to the interface circuit module and transmits data with the outside through the interface circuit module.

[0011] Optionally, the main control circuit board is located at the bottom of the battery seat, and the functional circuit board is vertically connected to the main control circuit board and is located on one side of the battery seat.

[0012] Optionally, a threading structure for installing a lanyard is recessed on the outer periphery of the shell, and a avoidance area for avoiding the threading structure is provided on the battery seat, and the avoidance area and the functional circuit board are separated on opposite sides of the battery seat.

[0013] Optionally, a first fixing hole is provided on the main control circuit board, a fixing column corresponding to the first fixing hole is provided at the bottom of the battery holder, and the fixing column is provided with a second fixing hole. The camera battery charging device also includes a fixing piece, and the fixing piece is provided with the first fixing hole and the second fixing hole to fix the main control circuit board on the fixing column.

[0014] Optionally, the bottom of the battery seat is also provided with an abutting portion for abutting the main control circuit board, and the fixing columns, the fixing parts and the first fixing holes are each provided with a plurality thereof, and the plurality of fixing columns are provided on the peripheral side of the abutting portion and away from the abutting portion.

[0015] Optionally, at least one limiting post is further provided at the bottom of the battery holder, and at least one limiting hole corresponding to and adapted to the position of the limiting post is provided on the main control circuit board, and each limiting post is provided with a corresponding limiting hole.

[0016] Optionally, the camera battery charging device also includes a display circuit board and a key circuit board, both of which are arranged in the shell and vertically connected to the main control circuit board. The display circuit board and the key circuit board are located on the same side of the battery seat and are separated from the function circuit board on a different side of the battery seat.

[0017] Optionally, the camera battery charging device also includes a display module for displaying the battery power and a switch for turning on the display module, the display module is arranged on the display circuit board, the switch is arranged on the key circuit board, and the switch and the display module are located on the same side of the shell.

[0018] Optionally, the power management module is arranged on a side of the main control circuit board facing away from the battery holder.

[0019] Optionally, the shell includes a base and an upper cover that can be buckled with the base, the main control circuit board, the functional circuit board and the battery holder are all arranged in the base, the functional circuit board is provided with a card slot for placing a memory card, and the battery holder is provided with an opening corresponding to the card slot and a battery compartment for accommodating a camera battery. When the upper cover is unfastened from the base, the opening and the battery compartment are exposed.

[0020] Optionally, a plurality of battery compartments are provided, and the shapes of the plurality of battery compartments are the same or different.

[0021] Optionally, the interface circuit module includes a type-C interface, which is directly arranged on the functional circuit board and connected to the power management module and the memory card identification module. The shell is provided with an opening connecting the inside and outside of the shell, and the opening is adapted to the type-C interface and has a corresponding position.

[0022] Compared with the prior art, the camera battery charging device provided by the embodiment of the present invention has the following beneficial effects: the camera battery charging device is provided with a shell, a battery holder, a main control circuit board, a functional circuit board, a power management module, a memory card identification module and an interface circuit module, and the battery holder that can accommodate the camera battery, the main control circuit board and the functional circuit board are arranged in the shell, the power management module is arranged on the main control circuit board, and the memory card identification module and the interface circuit module are both arranged on the functional circuit board. The memory card identification module and the interface circuit module that realize memory card data transmission and the power management module that realizes battery charging are arranged on two circuit boards, which separates data transmission and battery charging to a certain extent, reduces the possibility of mutual interference between data transmission and battery charging, improves the stability of the camera battery charging device during data transmission and battery charging, and enhances user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 It is a three-dimensional schematic diagram of a camera battery charging device provided by an embodiment of the utility model;

[0025] Figure 2 for Figure 1 A perspective schematic diagram of the camera battery charging device from another angle;

[0026] Figure 3 This is a three-dimensional schematic diagram of the camera battery charging device (without the cover) provided by the embodiment of the utility model

[0027] Figure 4 This is a three-dimensional schematic diagram of the connection state of the battery holder and each circuit board provided by an embodiment of the utility model;

[0028] Figure 5 This is a three-dimensional schematic diagram of the connection between the battery holder and each circuit board provided by an embodiment of the present invention from another angle;

[0029] Figure 6 yes Figure 5 A partially exploded view of the battery holder and circuit boards is shown.

[0030] The reference numerals in the figures are:

[0031] 10. Shell; 11. Wiring structure; 12. Base; 13. Upper cover; 14. Opening; 20. Battery holder; 21. Fixing column; 211. Second fixing hole; 22. Limiting column; 23. Abutment; 24. Opening; 25. Battery compartment; 30. Main control circuit board; 31. First fixing hole; 32. Limiting hole; 40. Functional circuit board; 41. Card slot; 50. Power management module; 60. Memory card identification module; 70. Interface circuit module; 71. Type-C interface; 80. Display circuit board; 90. Key circuit board; 100. Display module; 110. Switch. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0033] The present invention provides a camera battery charging device. Figures 1 to 4 As shown, the camera battery charging device includes a housing 10, a battery holder 20, a main control circuit board 30, a function circuit board 40, a power management module 50, a memory card identification module 60 and an interface circuit module 70.

[0034] The battery holder 20 is used to store the camera battery, and the battery holder 20 is provided in the housing 10. The camera battery charging device has the function of storing the camera battery.

[0035] The main control circuit board 30 and the functional circuit board 40 are both disposed in the housing 10 .

[0036] The power management module 50 is used to charge the batteries in the battery holder 20. The power management module 50 is located on the main control circuit board 30 and is connected to the interface circuit module 70. The power management module 50 transmits power to an external power supply through the interface circuit module 70. Specifically, the power management module 50 can obtain power from the external power supply through the interface circuit module 70 to charge the batteries in the battery holder 20.

[0037] The memory card identification module 60 is used to communicate with an external memory card. Both the memory card identification module 60 and the interface circuit module 70 are located on the functional circuit board 40. The memory card identification module 60 is connected to the interface circuit module 70, and data is transmitted to and from the external device through the interface circuit module 70. Specifically, the memory card identification module 60 can identify an external memory card and perform read and write operations on the memory card. Through the interface circuit module 70, data from the memory card can be transmitted to the external device or retrieved from the external device.

[0038] The camera battery charging device of the embodiment of the present invention is provided with a shell 10, a battery holder 20, a main control circuit board 30, a functional circuit board 40, a power management module 50, a memory card identification module 60 and an interface circuit module 70. The battery holder 20, the main control circuit board 30 and the functional circuit board 40 that can accommodate the camera battery are arranged in the shell 10, the power management module 50 is arranged on the main control circuit board 30, and the memory card identification module 60 and the interface circuit module 70 are both arranged on the functional circuit board 40. The memory card identification module 60 and the interface circuit module 70 that realize memory card data transmission and the power management module 50 that realizes battery charging are arranged on two circuit boards, which separates data transmission and battery charging to a certain extent, reduces the possibility of mutual interference between data transmission and battery charging, improves the stability of the camera battery charging device during data transmission and battery charging, and enhances user experience.

[0039] Among them, the battery holder 20 can be connected to the shell 10 by snapping or screwing. Preferably, the battery holder 20 is connected to the shell 10 by snapping and is installed in the shell 10. It has a simple structure, fast operation, and easy installation and disassembly. The snapping method can provide a stable connection between the battery holder 20 and the shell 10.

[0040] The camera battery charging device of the embodiment of the utility model can be applied to camera battery scenarios. The camera battery charging device can charge the camera battery and can also perform read and write operations on the camera's memory card.

[0041] refer to Figure 4 and Figure 5 The main control circuit board 30 is located at the bottom of the battery holder 20 , and the functional circuit board 40 is vertically connected to the main control circuit board 30 and is located on one side of the battery holder 20 .

[0042] By vertically connecting the functional circuit board 40 to the main control circuit board 30 and distributing the main control circuit board 30 and the functional circuit board 40 at the bottom and sides of the battery holder 20, a compact layout is achieved, effectively utilizing the internal space of the housing 10. This also reduces the impact of the heat-generating components of the power management module 50 on the memory card identification module 60 and interface circuit module 70 on the functional circuit board 40, further improving circuit operational stability. In a specific implementation, a snap-in hole can be provided on the main control circuit board 30, into which the functional circuit board 40 snaps.

[0043] When installing the power management module 50, it can be placed on the side of the main control circuit board 30 facing away from the battery holder 20. Because the power management module 50 is used to charge the batteries in the battery holder 20, the associated switching components generate a significant amount of heat during the charging process. Placing the power management module 50 on the side of the main control circuit board 30 facing away from the battery holder 20 facilitates heat dissipation from the circuit components on the power management module 50 and reduces the impact of heat on the batteries. Furthermore, the possibility of the battery holder 20 striking the circuit components on the power management module 50 during assembly of the main control circuit board 30 is reduced.

[0044] refer to Figure 2 、 Figure 4 and Figure 5 The outer periphery of the shell 10 is recessed with a threading structure 11 for installing a lanyard, and the battery holder 20 is provided with an avoidance area for avoiding the threading structure 11. The avoidance area and the functional circuit board 40 are separated on opposite sides of the battery holder 20.

[0045] The threading structure 11 facilitates the attachment of a lanyard to the outer perimeter of the housing 10, making the camera battery charger easier to carry. The recessed threading structure 11 separates the escape area and the functional circuit board 40 on opposite sides of the battery holder 20, rationalizing the layout of the interior of the housing 10. This allows for a compact arrangement of the circuit board and other components within the housing 10, facilitating miniaturization of the camera battery charger.

[0046] Alternatively, the threading structure 11 can be a through-hole formed by an indentation on the outer periphery of the housing 10 and then extending outward, and the lanyard can be mounted on the through-hole. Alternatively, the threading structure 11 can be in the form of a spring buckle to facilitate the installation of the lanyard.

[0047] refer to Figure 5 and Figure 6 A first fixing hole 31 is provided on the main control circuit board 30, and a fixing column 21 corresponding to the first fixing hole 31 is provided at the bottom of the battery holder 20. The fixing column 21 is provided with a second fixing hole 211. The camera battery charging device also includes a fixing member (not shown), which passes through the first fixing hole 31 and the second fixing hole 211 to fix the main control circuit board 30 on the fixing column 21.

[0048] The structure of the first fixing hole 31 on the main control circuit board 30 and the second fixing hole 211 on the fixing post 21 in conjunction with the fixing member securely secures the main control circuit board 30 to the bottom of the battery holder 20, preventing the main control circuit board 30 from loosening or shifting when the camera battery charging device is moved or vibrated, thereby improving the reliability and stability of the main control circuit board 30. Furthermore, the design of the first fixing hole 31 and the second fixing hole 211 on the fixing post 21 allows for relatively precise alignment of the main control circuit board 30 with the battery holder 20, facilitating assembly of the main circuit board 30.

[0049] Optionally, the fixing member can be a screw, with threads provided on the inner wall of the second fixing hole 211 of the fixing column 21. The screw cooperates with the threads to fix the main control circuit board 30 to the fixing column 21, thereby fixing it to the battery holder 20. If the main control circuit board 30 malfunctions, the screw can be loosened and the main control circuit board 30 can be removed, making debugging easier.

[0050] Continue to refer Figure 5 and Figure 6 At least one limiting post 22 is further provided at the bottom of the battery holder 20, and at least one limiting hole 32 corresponding to and adapted to the position of the limiting post 22 is provided on the main control circuit board 30, and each limiting post 22 is correspondingly provided with a limiting hole 32.

[0051] The coordinated arrangement of the limiting column 22 and the limiting hole 32 can ensure that the battery holder 20 and the main control circuit board 30 can be accurately positioned before tightening the main control circuit board 30, which facilitates assembly and increases the connection stability between the battery holder 20 and the main control circuit board 30, helping to further reduce the loosening or displacement problems between the battery holder 20 and the main control circuit board 30 during use.

[0052] The number of limiting posts 22 can be one, two, or more, and correspondingly, the number of limiting holes 32 can be one, two, or more, and can be set according to actual needs. Preferably, four limiting posts 22 can be distributed on the bottom of the battery holder 20, and four limiting holes 32 can be distributed on the main control circuit board 30. Through the cooperation of the four limiting posts 22 and the four limiting holes 32, the main control circuit board 30 can be limited from multiple directions, preventing the main circuit board 30 from rotating or shifting.

[0053] Continue to refer Figure 5 and Figure 6 The bottom of the battery holder 20 is also provided with an abutting portion 23 for abutting the main control circuit board 30, and multiple fixing columns 21, fixing members and first fixing holes 31 are correspondingly provided. Multiple fixing columns 21 are provided on the peripheral side of the abutting portion 23 and away from the abutting portion 23.

[0054] By setting the abutment portion 23 to abut the main control circuit board 30 and cooperating with multiple fixing columns 21, the fixing force and pressure of the main control circuit board 30 are effectively dispersed, the risk of excessive pressure on the main circuit board 30 during the process of fixing the main circuit board 30 is reduced, the possibility of deformation of the main circuit board 30 is reduced, and the reliability of the fixation of the main circuit board 30 is improved.

[0055] In a specific implementation, the abutting portion 23 can be a plurality of abutting blocks extending from the bottom of the battery holder 20 , and the plurality of abutting blocks abut the main control circuit board 30 to reduce the possibility of deformation of the main control circuit board 30 .

[0056] The number of the fixing columns 21 can be two, three or more, and correspondingly, the number of the fixing members, the first fixing holes 31 and the second fixing holes 211 can also be two, three or more, which can be set according to actual needs.

[0057] refer to Figure 4 The camera battery charging device also includes a display circuit board 80 and a key circuit board 90. The display circuit board 80 and the key circuit board 90 are both arranged in the shell 10 and vertically connected to the main control circuit board 30. The display circuit board 80 and the key circuit board 90 are located on the same side of the battery holder 20 and are separated from the function circuit board 40 on a different side of the battery holder 20.

[0058] By providing a display circuit board 80, a circuit module, such as a digital tube or LCD screen and its corresponding driver circuit, can be arranged on the display circuit board 80 to display battery information such as battery level, charging current, charging voltage, and charging status. This allows the user to directly observe the battery information through the circuit module on the display circuit board 80 and check whether the battery is charging properly. The display circuit board 80 can also be equipped with a display light and its circuit to indicate the communication status of the memory card, allowing the user to observe the card reading status through the display light. The key circuit board 90 can be equipped with a key circuit, which allows the user to operate the key circuit to view battery information when needed.

[0059] By arranging the main control circuit board 30 , the functional circuit board 40 , the display circuit board 80 and the key circuit board 90 as described above, the internal space of the housing 10 is effectively utilized, the functional diversity of the camera battery charging device is improved, and the user experience is further enhanced.

[0060] During specific implementation, limiting grooves can also be set on the battery holder 20 at positions corresponding to the functional circuit board 40, the display circuit board 80 and the key circuit board 90. The functional circuit board 40, the display circuit board 80 and the key circuit board 90 are all partially inserted into the corresponding limiting grooves to realize the positioning of each circuit board in the shell 10, avoid shaking or displacement during use, and improve the overall stability of the camera battery charging device.

[0061] refer to Figure 3and Figure 4 The camera battery charging device also includes a display module 100 for displaying the battery power and a switch 110 for turning on the display module 100. The display module 100 is arranged on the display circuit board 80, and the switch 110 is arranged on the key circuit board 90. The switch 110 and the display module 100 are located on the same side of the shell 10.

[0062] By setting the switch 100 , the user can press the switch 110 when needing to check the battery level, and the display module 100 will display the battery level of the camera battery, which is convenient to use.

[0063] The display module 100 may be a digital tube or a liquid crystal display.

[0064] refer to Figure 1 、 Figure 3 and Figure 4 The housing 10 includes a base 12 and an upper cover 13 that can be buckled with the base 12. The main control circuit board 30, the functional circuit board 40 and the battery holder 20 are all arranged in the base 12. The functional circuit board 40 is provided with a card slot 41 for placing a memory card. The battery holder 20 is provided with an opening 24 corresponding to the card slot 41 and a battery compartment 25 for accommodating a camera battery. When the upper cover 13 is unfastened from the base 12, the opening 24 and the battery compartment 25 are exposed.

[0065] By providing a base 12 and a top cover 13 that can be interlocked as the housing 10, the top cover 13 can be snapped onto the base 12 to store the battery and memory card within the housing 10, making it easy to carry while also preventing damage to the battery and memory card. When the battery or memory card needs to be removed, the top cover 13 can be opened to expose the battery compartment 25 and the card slot 41. The battery can then be placed in the battery compartment 25 and the memory card in the card slot 41, or the battery can be removed from the battery compartment 25 and the memory card can be removed from the card slot 41, making it very convenient to use.

[0066] The shape of the battery compartment 25 can be adapted to accommodate different camera battery models. The number of battery compartments 25 can be one or more, i.e., one, two, three, or more. The shapes of the multiple battery compartments 25 can be the same or different. Battery compartments 25 of different shapes can accommodate and charge different camera battery models, significantly improving the compatibility of the camera battery charging device. For example, the battery holder 20 is provided with two battery compartments 25 of the same shape, allowing for charging two identical camera battery models.

[0067] refer to Figure 1 and Figure 4The interface circuit module 70 includes a type-C interface 71. The type-C interface 71 is directly set on the functional circuit board 40 and is connected to the power management module 50 and the memory card identification module 60. The shell 10 is provided with an opening 14 that connects the inside and outside of the shell 10. The opening 14 is adapted to the type-C interface 71 and the position corresponds to it.

[0068] By adopting the type-C interface 71 as the interface for power and data transmission, it can be plugged in and out in both directions without having to worry about the insertion direction of the interface, thereby improving user convenience; it can achieve fast data transmission, which is conducive to quickly reading memory card data and transmitting it to an external terminal; and the type-C interface 71 is adopted by more and more devices, and the use of the type-C interface 71 can increase the compatibility of camera battery charging devices.

[0069] In addition, the type-C interface 71 is directly set on the functional circuit board 40, which simplifies the overall design, reduces the length and complexity of the connection line, can reduce the length of the signal transmission path, and helps to improve data transmission speed and stability.

[0070] In other embodiments, the interface circuit module 70 may also use a Lightning interface to achieve power and data transmission. The interface circuit module 70 preferably uses a Type-C interface 71, which is highly versatile and can be connected to a terminal or power supply with an interface that matches the Type-C interface 71.

[0071] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A camera battery charging device, characterized in that: It includes a housing, a battery holder, a main control circuit board, a functional circuit board, a power management module, a memory card identification module and an interface circuit module, wherein: The battery holder is used to store camera batteries, and the battery holder is arranged in the housing; The main control circuit board and the functional circuit board are both arranged in the housing; The power management module is used to charge the battery on the battery holder. The power management module is arranged on the main control circuit board and is connected to the interface circuit module, and transmits power to the external power supply end through the interface circuit module; The memory card identification module is used to communicate with an external memory card. The memory card identification module and the interface circuit module are both arranged on the functional circuit board. The memory card identification module is connected to the interface circuit module and transmits data with the outside through the interface circuit module.

2. The camera battery charging device according to claim 1, wherein: The main control circuit board is located at the bottom of the battery seat, and the functional circuit board is vertically connected to the main control circuit board and is located at one side of the battery seat.

3. The camera battery charging device according to claim 2, characterized in that: The outer periphery of the shell is recessed with a threading structure for installing a lanyard, and the battery seat is provided with an escape area for avoiding the threading structure. The escape area and the functional circuit board are separated on two opposite sides of the battery seat.

4. The camera battery charging device according to claim 2, wherein: A first fixing hole is provided on the main control circuit board, a fixing column corresponding to the first fixing hole is provided at the bottom of the battery holder, and the fixing column is provided with a second fixing hole. The camera battery charging device also includes a fixing piece, and the fixing piece is provided with the first fixing hole and the second fixing hole to fix the main control circuit board on the fixing column.

5. The camera battery charging device according to claim 4, characterized in that: The bottom of the battery holder is also provided with an abutting portion for abutting the main control circuit board, and multiple fixing columns, fixing members and first fixing holes are correspondingly provided. Multiple fixing columns are provided on the peripheral side of the abutting portion and away from the abutting portion.

6. The camera battery charging device according to claim 4, characterized in that: At least one limiting post is further provided at the bottom of the battery holder, and at least one limiting hole corresponding to and adapted to the position of the limiting post is provided on the main control circuit board, and each limiting post is correspondingly penetrated by one limiting hole.

7. The camera battery charging device according to any one of claims 2 to 6, characterized in that: The camera battery charging device also includes a display circuit board and a key circuit board. The display circuit board and the key circuit board are both arranged in the shell and vertically connected to the main control circuit board. The display circuit board and the key circuit board are located on the same side of the battery seat and are separated from the function circuit board on a different side of the battery seat.

8. The camera battery charging device according to claim 7, characterized in that: The camera battery charging device also includes a display module for displaying the battery power and a switch for turning on the display module. The display module is arranged on the display circuit board, and the switch is arranged on the key circuit board. The switch and the display module are located on the same side of the shell.

9. The camera battery charging device according to any one of claims 2 to 6, characterized in that: The power management module is arranged on a side of the main control circuit board facing away from the battery seat.

10. The camera battery charging device according to any one of claims 2 to 6, characterized in that: The shell includes a base and an upper cover that can be buckled with the base. The main control circuit board, the functional circuit board and the battery holder are all arranged in the base. The functional circuit board is provided with a card slot for placing a memory card. The battery holder is provided with an opening corresponding to the card slot and a battery compartment for accommodating a camera battery. When the upper cover is unfastened from the base, the opening and the battery compartment are exposed.

11. The camera battery charging device according to claim 10, wherein: There are multiple battery compartments, and the shapes of the multiple battery compartments are the same or different.

12. The camera battery charging device according to any one of claims 2 to 6, characterized in that: The interface circuit module includes a type-C interface, which is directly arranged on the functional circuit board and connected to the power management module and the memory card identification module. The shell is provided with an opening connecting the inside and outside of the shell, and the opening is adapted to the type-C interface and has a corresponding position.

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