Portable modularized assembled small household appliance

Abstract

The utility model relates to the technical field of portable charging equipment, in particular to portable modularized assembled small household electrical appliance equipment, which comprises a power supply unit and one or more detachable assembled modules, the power supply unit is provided with an energy storage battery, a power supply management circuit and one or more interface devices used for being connected with the assembly modules, and the power supply management circuit is electrically connected to the energy storage battery and the interface devices respectively; each assembly module at least comprises an independent functional unit and a control circuit thereof, and is provided with a switching device, the switching device is matched with the interface device of the power supply unit to form detachable fixed connection, and the control circuit is electrically connected with the power supply management circuit. In conclusion, the power supply unit and assembly module combined equipment which is practical and attractive can be provided, more requirements of users on portability and functionality can be met, and convenience and comfort of daily life can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of modular electrical equipment, especially to a portable modular assembled small household electrical equipment. BACKGROUND

[0002] In modern life, the popularity of mobile devices has led to an increasing demand for portable charging devices. As a kind of portable energy storage device, power banks not only meet the needs of electronic devices to charge anytime and anywhere, but also constantly explore new possibilities in functionality and convenience. At the same time, the demand for other small electrical devices is also increasingly common in daily life, and many users hope to easily carry and use portable assembly module devices at any time when they go out. Therefore, the design innovation combining power supply units and assembly modules is particularly important.

[0003] Existing small electrical devices and power bank products are usually designed independently, that is, small electrical devices themselves also have batteries, and need to be charged and managed separately, which increases the burden on users.

[0004] In addition, some small devices that can be plugged into a power bank have also appeared, but they have relatively complex problems in connection and power supply, especially in achieving quick connection and convenient disassembly, which is difficult to balance convenience and safety in engineering design. Users often need to specify the connection direction and position of the device, which may cause inconvenience and confusion during the connection process, affecting user convenience. SUMMARY

[0005] The utility model aims to provide a technical solution to solve the above problems.

[0006] The utility model provides a portable modular assembled small household electrical equipment, which comprises a power supply unit and one or more detachable assembly modules.

[0007] As a further scheme of the utility model, the power supply unit is provided with an energy storage battery, a power management circuit, and one or more interface devices for connecting the assembly modules, and the power management circuit is electrically connected to the energy storage battery and the interface device respectively.

[0008] As a further scheme of the utility model, each assembly module comprises at least one independent functional unit and its control circuit, and is equipped with an adapter, which is matched with the interface device of the power supply unit to form a detachable fixed connection, and the control circuit and the power management circuit are electrically connected.

[0009] As a further scheme of the utility model: the interface device is equipped with a first conductive part, and forms electrical connection with the power management circuit; the adapter device is equipped with a second conductive part, and forms electrical connection with the control circuit; the adapter device and the interface device are connected with each other, so that the first conductive part and the second conductive part form electrical connection.

[0010] As a further scheme of the utility model: the first conductive part is equipped with a conductive boss and a conductive contact point, the conductive boss is fixedly connected to the interface device, the conductive contact point is fixedly connected to the conductive boss, and forms electrical connection with the power management circuit; the second conductive part is equipped with a conductive recess and a conductive spring needle, the conductive recess is fixedly connected to the adapter device, and the conductive spring needle is installed in the conductive recess and forms electrical connection with the control circuit.

[0011] As a further scheme of the utility model: the conductive contact point is equipped with a first contact point and at least one second contact point, the first contact point is arranged at the central axis of the conductive boss, and the second contact point is distributed along the circumference of the central axis; the conductive spring needle is equipped with a first spring needle and at least one second spring needle, the first spring needle is arranged at the central axis of the conductive recess, and the second spring needle is distributed along the circumference of the central axis of the conductive recess.

[0012] As a further scheme of the utility model: the conductive boss and the interface device are coaxially arranged, and the cross section angle of the conductive boss and the cross section side of the interface device correspond to each other; the conductive recess and the adapter device are coaxially arranged, and the cross section angle of the conductive recess and the cross section side of the adapter device correspond to each other.

[0013] As a further scheme of the utility model: the interface device is equipped with a first magnetic attraction part, the adapter device is equipped with a second magnetic attraction part, and the first magnetic attraction part and the second magnetic attraction part correspond to each other to form magnetic adsorption connection.

[0014] As a further scheme of the utility model: the interface device is equipped with a positioning plug, the adapter device is equipped with a positioning sleeve, and the positioning plug can be inserted into the positioning sleeve, so that the power supply unit and the assembled module form detachable fixed connection.

[0015] As a further scheme of the utility model: the positioning plug is arranged as a polyhedral column, the positioning sleeve is arranged as a polyhedral sleeve, the first magnetic attraction part is equipped with a plurality of magnetic attraction blocks and is arranged at the corresponding edge corner parts of the polyhedral column respectively, and the second magnetic attraction part is equipped with a plurality of magnetic attraction blocks and is arranged at the corresponding edge corner parts of the bottom surface of the polyhedral sleeve respectively.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1. The power supply unit and assembly modules are designed as independent modules that can be detached and interchanged, facilitating use in different situations. For example, users can choose to carry the power supply unit and multiple different assembly modules as needed. The power supply unit can be used independently, or the assembly modules can be combined to form new small home appliances, providing new functions. Users can even replace the assembly modules to switch between different functions.

[0018] 2. It features a simple and efficient electrical connection method. Through separable conductive components, it enables convenient electrical connection between the power supply unit and the assembly module. In particular, the structural design with multiple conductive contacts and multiple conductive spring pins allows the assembly module to be matched and connected in any direction, eliminating the directional restrictions for users during the connection process.

[0019] 3. A magnetic locking device is also incorporated, with a magnetic attraction mechanism between the two devices, making the connection between them more convenient and secure, and allowing for easier separation when disassembly is required, thus improving the user experience.

[0020] 4. Furthermore, by setting up a reinforced tetrahedral structure, the stability of its connection is improved. The use of a precise and fitting positioning plug and positioning sleeve design ensures the stability of the overall structure, greatly reduces the relative movement of the connection parts, and improves the reliability of the connection.

[0021] Through the above improvements, this utility model can provide a power supply unit and assembly module combination device that is both practical and aesthetically pleasing, meeting users' greater requirements for portability and functionality, and improving the convenience and comfort of daily life.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the power supply unit and assembly module of this utility model in a combined state;

[0025] Figure 2 This is a cross-sectional schematic diagram of the first magnetic attraction part and the second magnetic attraction part of this utility model;

[0026] Figure 3is a structural schematic view of the conductive spring needle and the conductive groove of the utility model;

[0027] Figure 4 is a structural schematic view of the power unit and the assembling module in the separation state of the utility model;

[0028] Figure 5 is a sectional schematic view of the first conductive part and the second conductive part of the utility model;

[0029] Figure 6 is a sectional schematic view of another embodiment of the utility model;

[0030] Figure 7 is a circuit schematic view of the power unit of the utility model;

[0031] Figure 8 is a circuit schematic view of the assembling module of the utility model;

[0032] Figure 9 is a schematic block diagram of the electrical connection of the utility model.

[0033] The reference signs and names in the drawing are as follows:

[0034] 10 power unit, 11 energy storage battery, 12 power management circuit, 13 charge-discharge interface, 14 PET diaphragm, 20 assembling module, 21 functional unit, 22 control circuit, 23 handle end, 24 functional end, 25 connecting bottom cover, 26 function switch, 30 conductive assembly, 31 first conductive part, 32 conductive boss, 33 conductive contact, 34 first contact, 35 second contact, 41 second conductive part, 42 conductive groove, 43 conductive spring needle, 44 first spring needle, 45 second spring needle, 51 first magnetic attraction part, 52 second magnetic attraction part, 60 positioning assembly, 61 positioning plug, 62 positioning sleeve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0036] Please refer to Figures 1 to 9The utility model discloses an embodiment of a kind of portable modular assembly small household appliance, comprising a power unit 10 and one or more detachable assembly module 20;The power unit 10 is equipped with energy storage battery 11, power management circuit 12, and one or more interface devices for connecting assembly module 20, the power management circuit 12 is electrically connected to energy storage battery 11 and interface device respectively;Each assembly module 20 at least includes an independent functional unit 21 and its control circuit 22, and is equipped with adapter, the adapter and the interface device of power unit 10 are mutually matched, form detachable fixed connection, and make control circuit 22 and power management circuit 12 form electric connection.

[0037] Specifically, the power unit 10 can be a mobile power supply or a power bank, and the assembly module 20 can be a small fan, a flashlight (ambiance night light), a shaver, a beauty instrument, a mobile anion oxygen bar, a small hair dryer, a powerful dust blowing fan, etc.

[0038] Secondly, in order to facilitate use and carry, the power unit 10 and the assembly module 20 can be designed as independent modules that can be detachably connected to each other, facilitating use in different occasions. For example, the user can choose to carry only the power unit 10 for individual use, or carry both the power unit 10 and the assembly module 20, so that the functions of both can be used simultaneously. In particular, when only external electrical equipment needs to be charged, the power unit 10 can be used alone, and the assembly module 20 can be removed for storage. For example, when a mobile phone needs to be charged in a handheld manner, the assembly module 20 does not need to be connected, and only the power unit 10 needs to be electrically connected to the mobile phone. The assembly module 20 can also be placed in a bag carried by the user, thereby reducing the volume and weight of the object held by the user when charging.

[0039] Thirdly, when the corresponding function of the assembly module 20 is needed, the assembly module 20 is taken out and installed on the positioning plug 61 of the power unit 10, and the first conductive part 31 and the second conductive part 41 form an electrical connection, thereby providing operating power for the functional unit 21 of the assembly module 20, enabling it to operate and provide corresponding extended functions. It can be understood that when different functions of the assembly module 20 are needed, the assembly module 20 can be disassembled and replaced, so that one power unit 10 can supply power to multiple assembly modules 20 and support their operation.

[0040] In addition, as Figure 7As shown in the circuit diagram of the power unit 10, the functions of the related electronic components are as follows:

[0041] USB1 TYPE-C input and output bidirectional charging interface;

[0042] USB2 USB / A output charging interface;

[0043] U1 charge and discharge management;

[0044] U2 battery protection;

[0045] PG1 is connected to the first conductive part 31, and the assembled module 20 is powered;

[0046] LED1-LED4 charging and power display;

[0047] SW1 wake-up key switch;

[0048] RNTC1 battery temperature protection.

[0049] As shown in the circuit diagram of the assembled module 20, the functions of the related electronic components are as follows: Figure 8

[0050] PG1 is connected to the second conductive part 41, and the power of the power unit 10 is connected;

[0051] U1 function unit 21 drive IC;

[0052] JP1 is connected to the function unit 21;

[0053] SW1 function switch 26 controls the control circuit 22;

[0054] U2 control circuit 22 program control MCU.

[0055] As shown in Figure 2 and Figure 5 Preferably, the interface device is provided with the first conductive part 31 and is electrically connected with the power management circuit 12; the switching device is provided with the second conductive part 41 and is electrically connected with the control circuit 22; the switching device and the interface device are connected with each other to form the electrical connection between the first conductive part 31 and the second conductive part 41.

[0056] ​Specifically, the first conductive part 31 and the second conductive part 41 can match with each other to form the conductive assembly 30, so as to form an electric energy transmission channel between the functional unit 21 and the energy storage battery 11, and enable the functional unit 21 to receive electric energy to operate and provide corresponding expansion functions. The first conductive part 31 and the second conductive part 41 can be provided by using conductive products in various existing conductive technologies, such as a plug and a socket, or an electromagnetic induction type conductive device, or a contact type conductive device.

[0057] As shown in Figure 2 and Figure 5 Preferably, the first conductive part 31 is provided with a conductive boss 32 and a conductive contact 33, the conductive boss 32 is fixedly connected to the interface device, the conductive contact 33 is fixedly connected to the conductive boss 32 and forms an electrical connection with the power management circuit 12; the second conductive part 41 is provided with a conductive recess 42 and a conductive pogo pin 43, the conductive recess 42 is fixedly connected to the adapter device, and the conductive pogo pin 43 is installed in the conductive recess 42 and forms an electrical connection with the control circuit 22.

[0058] Specifically, when the adapter device is inserted into the interface device, the conductive pogo pin 43 of the second conductive part 41 and the conductive contact 33 of the first conductive part 31 can be close to each other and eventually form an abutting state, so as to achieve an electrical connection state and realize the effect of transmitting electric energy. The conductive pogo pin 43 can be a pogo pin connector in existing products, which is a precision connector widely used in mobile phones, power supplies and other electronic products. The Chinese name of pogo pin is pogo pin, which is mainly used for current and signal transmission, that is, charging and conducting.

[0059] Secondly, in order to facilitate the installation of the conductive recess 42, a corresponding connecting bottom cover 25 can also be arranged at the adapter device of the assembly module 20. The connecting bottom cover 25 is fixedly connected to the adapter device of the assembly module 20 at the periphery, and the conductive recess 42 is fixedly connected to the middle part of the connecting bottom cover 25. Meanwhile, the conductive recess 42 is recessed into the interior of the assembly module 20 by a certain depth, so as to form a recess corresponding to the conductive boss 32, and the conductive boss 32 can be inserted into the conductive recess 42 to form an accurate butt joint posture, so that the first conductive part 31 and the second conductive part 41 form a stable electrical connection.

[0060] As shown in Figure 3 and Figure 4As shown, preferably, the conductive contact 33 is provided with a first contact 34 and a plurality of second contacts 35, the first contact 34 is arranged at the central axis of the conductive boss 32, and the plurality of second contacts 35 are uniformly distributed along the circumference of the central axis of the conductive boss 32 and have the same distance from the central axis; the conductive spring needle 43 is provided with a first spring needle 44 and a plurality of second spring needles 45, the first spring needle 44 is arranged at the central axis of the conductive recess 42, and the plurality of second spring needles 45 are uniformly distributed along the circumference of the central axis of the conductive recess 42 and have the same distance from the central axis.

[0061] Specifically, when the assembly module 20 is installed on the power supply unit 10, the first contact 34 and the first spring needle 44 can correspond to each other and abut against each other to form an electrical connection. Similarly, the second contact 35 and the second spring needle 45 correspond to each other and abut against each other to form an electrical connection. When the assembly module 20 is installed on the power supply unit 10, in order to avoid the user needing to distinguish the installation direction, a plurality of second contacts 35 can be uniformly distributed around the central axis of the conductive boss 32. For example, in the conductive boss 32 with a substantially quadrilateral cross section, four second contacts 35 can be arranged at the corners of the cross section of the conductive boss 32. Similarly, the conductive spring needle 43 can also be provided with a plurality of second contacts 35, which are uniformly distributed around the central axis of the conductive recess 42. For example, in the conductive recess 42 with a substantially quadrilateral cross section, four second spring needles 45 can be arranged at the corners of the cross section of the conductive recess 42, so as to correspond to the second contacts 35 of the conductive boss 32, and facilitate the abutment between the second contacts 35 and the second spring needles 45 when the assembly module 20 is docked on the power supply unit 10, so that the second contacts 35 and the second spring needles 45 form an electrical connection.

[0062] Secondly, since the conductive boss 32 is provided with four second contacts 35, the conductive recess 42 can be provided with only two second spring needles 45, which are arranged at two positions of the corners of the cross section of the conductive recess 42 on the diagonal line, so that when the assembly module 20 is inserted into the interface device of the power supply unit 10 along the central axis in any direction, the two second spring needles 45 can form an electrical connection with the second contacts 35 of the conductive boss 32. Even in a more cost-saving scheme, the conductive recess 42 can be provided with only one second spring needle 45, and since the second spring needle 45 corresponds to a position provided with a second contact 35, the electrical connection between the second conductive part 41 and the first conductive part 31 can also be achieved.

[0063] Again, since the direct current distinguishes between positive and negative, the first contact 34 and the first spring needle 44 can be set as positive, and the plurality of second contacts 35 and the plurality of second spring needles 45 can be set as negative. Alternatively, the first contact 34 and the first spring needle 44 can be set as negative, and the plurality of second contacts 35 and the plurality of second spring needles 45 can be set as positive.

[0064] In addition, as shown in Figure 9 , the functional switch 26 can also be installed on the assembled module 20, and the functional switch 26 is electrically connected to the control circuit 22, so that the control circuit 22 can be controlled and operated accordingly, and the functional unit 21 of the assembled module 20 can be adjusted and operated in multiple functions. For example, the functional unit 21 can be controlled to be turned on or off, or the power of the functional unit 21 can be controlled, or the speed of the functional unit 21 can be controlled, and so on.

[0065] As shown in Figure 3 , Figure 4 and Figure 5 , preferably, the electrically conductive boss 32 is coaxially arranged between the interface device, and the cross-sectional angle of the electrically conductive boss 32 corresponds to the cross-sectional edge of the interface device; the electrically conductive groove 42 is coaxially arranged between the adapter device, and the cross-sectional angle of the electrically conductive groove 42 corresponds to the cross-sectional edge of the adapter device.

[0066] Specifically, in order to more conveniently arrange the electrically conductive boss 32 on the end face of the interface device with relatively small size, the first contact 34 and the second contact 35 are arranged at a relatively wide distance from each other. Preferably, the cross-sectional angle of the electrically conductive boss 32 corresponds to the cross-sectional edge of the interface device. Further, the corner point of the cross section of the electrically conductive boss 32 can be accurately corresponded to the midpoint of the cross-sectional edge of the interface device, so as to ensure that the axis of the electrically conductive boss 32 coincides with the perpendicular bisector of the cross-sectional edge of the interface device. Similarly, the electrically conductive groove 42 and the adapter device can also be arranged in this way.

[0067] As shown in Figure 2 , Figure 3 and Figure 5 , preferably, the interface device is provided with a first magnetic attraction part 51, the adapter device is provided with a second magnetic attraction part 52, and the first magnetic attraction part 51 and the second magnetic attraction part 52 correspond to each other to form a magnetic attraction connection.

[0068] Specifically, when the power supply unit 10 and the assembled module 20 are gradually combined to form a connected state by approaching each other, the first magnetic attraction part 51 and the second magnetic attraction part 52 can be attracted to each other by magnetic attraction to form a relatively stable magnetic attraction connection. When the two need to be separated, the power supply unit 10 and the assembled module 20 can be held respectively and a certain pulling force can be applied to the two ends, so as to overcome the attraction force of the magnetic attraction connection and disassemble and separate the two.

[0069] Secondly, since both ends of the two devices need to be connected can be provided with strong magnet, the magnetic attraction and separation function between components is realized. This connection structure can realize the quick connection and stable fixation of components through magnetic force, and can be easily separated when sufficient external force is applied, which is suitable for application scenarios that need to be quickly assembled and disassembled.

[0070] As shown in Figures 1 to 6 , preferably, the interface device is provided with a positioning plug 61, the adapter device is provided with a positioning sleeve 62, and the positioning plug 61 can be inserted into the positioning sleeve 62, so that the power supply unit 10 and the assembly module 20 form a detachable fixed connection.

[0071] Specifically, the outer diameter of the positioning plug 61 is substantially the same as the diameter of the inner wall of the positioning sleeve 62, so that when the positioning sleeve 62 is sleeved on the positioning plug 61, the plug outer wall part and the sleeve inner wall are tightly fitted, thereby enhancing the structural integrity and the stability of the overall connection. It also makes the connection between the power supply unit 10 and the assembly module 20 more firm, reduces the relative movement, and improves the reliability and stability of the connection between the two.

[0072] Secondly, in order to make the positioning assembly 60 can assist in locking operation, preferably, the magnetic attraction block of the first magnetic attraction part 51 can be installed on the end of the positioning plug 61, and the magnetic attraction block of the second magnetic attraction part 52 can be installed on the connecting bottom cover 25 at the bottom of the positioning sleeve 62, so that after the positioning plug 61 is inserted into the positioning sleeve 62, the magnetic attraction blocks of the first magnetic attraction part 51 and the second magnetic attraction part 52 can be attracted to each other, forming a relatively stable magnetic attraction connection. It can be understood that the first magnetic attraction part 51 and the second magnetic attraction part 52 can be provided as magnets in existing products.

[0073] Thirdly, a thin layer of PET film 14 can also be provided on the end face of the positioning plug 61, which will not affect the magnetic attraction force, thereby covering the first magnetic attraction part 51. It can prevent collision damage caused by direct contact between the two magnetic attraction parts, and also can shield the mounting bolts of the power supply unit 10, improve its beauty, so that the power supply unit 10 also has the corresponding beauty when used independently.

[0074] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , preferably, the positioning plug 61 is provided as a polyhedral column, the positioning sleeve 62 is provided as a polyhedral sleeve, the first magnetic attraction part 51 is provided with a plurality of magnetic attraction blocks and is respectively arranged at the corresponding corner parts of the polyhedral column; the second magnetic attraction part 52 is provided with a plurality of magnetic attraction blocks and is respectively arranged at the corresponding corner parts of the bottom surface of the polyhedral sleeve.

[0075] Specifically, for example, the positioning plug 61 can be set as a tetrahedral column, and the first magnetic attraction part 51 is provided with four magnetic attraction blocks, which are respectively arranged at the four corner positions of the tetrahedral column. Similarly, the positioning sleeve 62 can be set as a tetrahedral sleeve, and the second magnetic attraction part 52 is provided with four magnetic attraction blocks, which are respectively arranged at the four corner positions of the bottom surface of the tetrahedral sleeve.

[0076] Secondly, in order to further improve the connection firmness of the power supply unit 10 and the assembled module 20 after combination, it is preferred to set multiple magnetic attraction blocks, such as four groups of magnetic attraction blocks forming mutual attraction, which are respectively installed at the four corner positions of the interface device and the four corner positions of the adapter device, so that the corresponding four corner positions can be attracted to each other to form a strong magnetic attraction connection. After such setting, no matter which installation direction the assembled module 20 adopts to be connected and installed on the power supply unit 10, the first conductive part 31 and the second conductive part 41 can be abutted to each other and form an electrical connection. Moreover, the special shape (tetrahedral column and tetrahedral sleeve) between the positioning sleeve 62 and the positioning plug 61 can be used for cooperation, so that they are convenient for disassembly and connection. At the same time, the cooperation of the conductive convex seat 32 and the conductive recess 42 can be used to assist the connection between the first conductive part 31 and the second conductive part 41, so that the conductive contact 33 and the conductive spring needle 43 can be accurately aligned to realize the electrical connection state of abutting to each other.

[0077] Thirdly, in order to improve the aesthetic appearance and improve the comfort of use, the positioning plug 61 and the outer wall of the power supply unit 10 can also be set as a rounded tetrahedral column, and the positioning sleeve 62 can also be set as a rounded tetrahedral sleeve. At the same time, the handle end 23 of the assembled module 20 can also be set as a rounded tetrahedral column, so that the design style of the power supply unit 10 and the assembled module 20 is unified, and after the connection is completed, a whole feeling is formed to improve the aesthetic appearance. The functional end 24 of the assembled module 20 can be changed according to the corresponding function, such as when the assembled module 20 is a small fan, the corresponding functional end 24 can be set as a cylindrical shape. When the assembled module 20 is a shaver, the corresponding functional end 24 can be a cylindrical shape of a rotary shaver, or a flat shape of a reciprocating shaver.

[0078] In addition, as shown in FIG. 6, the power supply unit 10 can be provided with a plurality of positioning plugs 61, and the assembled module 20 can be provided with a plurality of positioning sleeves 62. In this way, the power supply unit 10 and the assembled module 20 can be connected and installed in any direction, and the first conductive part 31 and the second conductive part 41 can be abutted to each other to form an electrical connection. Figure 9As shown, the power unit 10 can also be provided with a charge-discharge interface 13, such as a USB interface of various specifications in the prior art, so that it can not only charge the energy storage battery 11 inside the power unit 10, but also discharge externally through the USB interface to realize the charge-discharge function of the power unit 10. Moreover, the assembling module 20 and the power unit 10 are combined in a detachable connection structure, which can not only facilitate the use of the corresponding function of the assembling module 20 at any time, but also can not need to carry the assembling module 20 when it is not needed. For example, when only the external mobile phone needs to be charged, the assembling module 20 does not need to be used together, which improves the user experience. At the same time, the assembling module 20 can be replaced to switch different functions.

[0079] In an embodiment, as shown in Figure 2 , Figure 4 and Figure 5 , preferably, the outer diameter of the positioning plug 61 can be smaller than the outer diameter of the overall shell of the power unit 10, so as to form a stepped position between the positioning plug 61 and the overall shell of the power unit 10, so that when the positioning plug 61 is inserted into the positioning sleeve 62, the positioning sleeve 62 can be fitted at the position of the stepped position, and the outer diameter of the positioning sleeve 62 is slightly equal to the outer diameter of the shell of the power unit 10, so that after the assembling module 20 and the power unit 10 are connected to each other, a more beautiful overall shape is formed.

[0080] In another embodiment, as shown in Figure 6 , preferably, in order to maintain an overall shape when the power unit 10 is used independently, the thickness of the shell of the power unit 10 can be reduced, and the stepped position can also not be provided, that is, the outer wall of the shell of the power unit 10 is provided in a straight cylinder type, and then the inner wall diameter of the positioning sleeve 62 of the assembling module 20 is provided to be equal to or slightly larger than the outer wall diameter of the shell of the power unit 10, so that the positioning sleeve 62 can be directly fitted on the shell of the positioning plug 61 of the power unit 10 to form a connected state of mutual docking.

[0081] Embodiment one: small fan module

[0082] Power unit 10: a standard mobile power supply, built-in 10000mAh battery, a power management IC (integrated circuit), and a three-dimensional cylindrical positioning plug 61, the interface device on the positioning plug 61 has four conductive contacts 33, a central contact is located at the central axis, and three peripheral contacts correspond to the midpoint positions of the cross-sectional edges of the three-dimensional cylindrical. The central contact provides a positive voltage, and the peripheral contact provides a negative voltage and ground.

[0083] Fan module: A small fan with built-in control circuit 22 and a three- prismatic sleeve-shaped positioning sleeve 62 with two spring contacts on the adapter on the positioning sleeve 62 for connecting the contacts of the power supply unit 10. One spring contact at the center axis connects the positive voltage and corresponds to the center contact of the power supply unit 10. The other spring contact for connecting the negative voltage and ground is arranged at the midpoint of the corresponding three-prismatic cross-sectional edge and corresponds to the peripheral contact of the power supply unit 10.

[0084] The interface of the power supply unit 10 and the adapter of the assembly module 20 are both provided with corresponding magnet blocks to achieve magnetic attraction connection for enhancing alignment and secure connection. For example, magnet blocks are arranged at the three cross-sectional corners of the three-prismatic positioning plug 61, and similarly, magnet blocks are arranged at the three cross-sectional corners of the bottom of the three-prismatic sleeve-shaped positioning sleeve 62, so that the magnet blocks of the two correspond to each other and can be attracted to each other when assembled to form a stable magnetic attraction connection.

[0085] Example two: enhanced lighting module with multiple contacts

[0086] Power supply unit 10: Similar to example one, a mobile power supply with a four- square housing, with a power management circuit 12 and a four-square interface. The interface includes a four-prismatic positioning plug 61 with magnetic blocks on the four cross-sectional corners, and multiple conductive contacts 33 inside the plug (one positive at the center axis and four negatives arranged at the midpoints of the corresponding cross-sectional edges).

[0087] Lighting module: An LED light group with control circuit 22 including LED driving and brightness adjustment functions, and a four-square adapter. The adapter includes a four-prismatic sleeve-shaped positioning sleeve 62 with magnetic blocks at the four cross-sectional corners of the bottom of the sleeve, and a conductive recess 42 at the bottom of the sleeve with multiple spring contacts (one positive at the center axis and four negatives arranged at the midpoints of the corresponding cross-sectional edges). To ensure reliable connection, each contact is designed with redundant contact area and spring- ensured contact pressure.

[0088] Example three: shaver module with magnetic attraction and mechanical positioning

[0089] Power supply unit 10: Similar to example one, but the power management circuit 12 is more powerful and supports higher current. The interface uses a hexagonal structure with seven conductive contacts 33 (one center contact and six corner contacts) to provide positive voltage and ground and support more complex module functions. The interface includes a six-prismatic positioning plug 61 with magnetic blocks at the six cross-sectional corners.

[0090] Shaving razor module: an electric shaver with a control circuit 22 and a matching adapter. The adapter comprises a hexagonal sleeve-shaped positioning sleeve 62, which is provided with magnetic blocks at the positions of the six cross-sectional corners of the sleeve bottom, and a conductive recess 42 in the sleeve bottom, which is provided with seven spring contacts (one central spring contact and six corner spring contacts), which correspond to the conductive contacts 33 of the power supply unit 10, so that an electrical connection is formed when the adapter is brought into abutment. The positioning plug 61 is inserted into the positioning sleeve 62, the magnetic blocks ensuring alignment, a secure mechanical connection, and a stable electrical connection between the conductive contacts 33 and the conductive spring contacts 43.

[0091] Example four: combination of multiple modules

[0092] This example shows the use of multiple modules in combination. The power supply unit 10 has two interface devices, for example at both ends of the power supply unit 10, so that two assembled modules 20 can be combined at the same time. Correspondingly, the charge and discharge interface 13 of the power supply unit 10 can be arranged on the side.

[0093] Module one: a small fan module (example one).

[0094] Module two: an LED lighting module (example two).

[0095] The power supply unit 10 can supply power to both the fan module and the lighting module at the same time, achieving the effect of one power supply unit 10 driving two assembled modules 20 at the same time, and improving the use scenarios of the device.

[0096] These examples show the application of the present application to different assembled modules 20, emphasizing its modular, detachable, and easy-to-connect features. Different examples can be adjusted according to the required functions and sizes, so as to assemble a variety of portable modular small household electrical appliances.

[0097] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A portable modular assembled small household appliance, characterized in that, The power supply unit (10) is provided with an energy storage battery (11), a power management circuit (12), and one or more interface devices for connecting the assembly module (20), and the power management circuit (12) is electrically connected to the energy storage battery (11) and the interface device, respectively. Each assembly module (20) comprises at least one independent functional unit (21) and its control circuit (22), and is equipped with an adapter device which matches the interface device of the power supply unit (10) to form a detachable fixed connection and enables the control circuit (22) to be electrically connected to the power management circuit (12). The interface device is provided with a first conductive part (31) and is electrically connected to the power management circuit (12); the adapter device is provided with a second conductive part (41) and is electrically connected to the control circuit (22); the adapter device and the interface device are connected to each other to enable the first conductive part (31) to be electrically connected to the second conductive part (41). The first conductive part (31) is provided with a conductive boss (32) and a conductive contact (33), the conductive boss (32) is fixedly connected to the interface device, and the conductive contact (33) is fixedly connected to the conductive boss (32) and is electrically connected to the power management circuit (12); the second conductive part (41) is provided with a conductive groove (42) and a conductive spring needle (43), the conductive groove (42) is fixedly connected to the adapter device, and the conductive spring needle (43) is installed in the conductive groove (42) and is electrically connected to the control circuit (22). The conductive contact (33) is provided with a first contact (34) and at least one second contact (35), the first contact (34) is arranged at the central axis of the conductive boss (32), and the second contact (35) is distributed along the circumference of the central axis; the conductive spring needle (43) is provided with a first spring needle (44) and at least one second spring needle (45), the first spring needle (44) is arranged at the central axis of the conductive groove (42), and the second spring needle (45) is distributed along the circumference of the central axis of the conductive groove (42).

2. The portable modular assembled small household electrical appliance according to claim 1, characterized in that, The conductive boss (32) is coaxially arranged between the interface device, and the cross-sectional angle of the conductive boss (32) corresponds to the cross-sectional edge of the interface device; the conductive groove (42) is coaxially arranged between the adapter device, and the cross-sectional angle of the conductive groove (42) corresponds to the cross-sectional edge of the adapter device.

3. The portable modular assembled small household electrical appliance according to claim 1, characterized in that, The interface device is provided with a first magnetic attraction part (51), the adapter device is provided with a second magnetic attraction part (52), and the first magnetic attraction part (51) and the second magnetic attraction part (52) correspond to each other to form a magnetic attraction connection.

4. The portable modular assembled small household electrical appliance according to claim 1, characterized in that, The interface device is provided with a positioning plug (61), the adapter device is provided with a positioning sleeve (62), and the positioning plug (61) can be inserted into the positioning sleeve (62) to enable the power supply unit (10) and the assembly module (20) to form a detachable fixed connection.

5. The portable modular assembled small household electrical appliance according to claim 4, characterized in that, ​ 6. The portable modular assembled small household electrical appliance according to claim 5, characterized in that, The positioning plug (61) is arranged as a polyhedral column, the positioning sleeve (62) is arranged as a polyhedral sleeve, the first magnetic attraction part (51) is provided with a plurality of magnetic attraction blocks and is arranged at corresponding corner positions of the polyhedral column respectively, and the second magnetic attraction part (52) is provided with a plurality of magnetic attraction blocks and is arranged at corresponding corner positions of the bottom surface of the polyhedral sleeve respectively.

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