MIFI equipment

Abstract

The utility model relates to MIFI equipment, which is applied to the technical field of mobile terminals and comprises a WiFi unit, a battery, a printed circuit board and a heating unit, the heating unit is connected with the printed circuit board, and the heating unit is attached to the surface of the battery; and the printed circuit board is used for controlling the heating unit to heat the battery under the condition that the environment temperature is lower than a first preset temperature. The problem of low charging efficiency of the MIFI equipment under the condition of low temperature in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile terminals, in particular to a MIFI device. BACKGROUND

[0002] The MIFI (Mobile WIFI) product features the combination of the on-the-go WIFI function and the power bank function, which can provide WIFI signals for mobile devices and also has the function of charging and discharging the mobile devices. Due to the convenience of the MIFI device, its use scenarios are mostly outdoors. However, when it encounters low-temperature (for example, below minus 15℃) weather, the charging efficiency of the mobile device will decrease significantly, and the performance of the battery of the MIFI device will decrease or even stop charging and discharging, which causes certain disturbance to the user when using it outdoors. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a MIFI device to solve the problem of low charging efficiency of the MIFI device in the prior art under low temperature.

[0004] In a first aspect, the embodiments of the present application provide a MIFI device, comprising: a WiFi unit, a battery, a printed circuit board and a heating unit;

[0005] The heating unit is connected with the printed circuit board, and the heating unit is attached to the surface of the battery.

[0006] The printed circuit board is configured to control the heating unit to heat the battery when the ambient temperature is lower than a first preset temperature.

[0007] Optionally, the heating unit comprises a flexible circuit board and a heating wire arranged in the flexible circuit board.

[0008] The flexible circuit board connector is arranged on the printed circuit board.

[0009] The heating wire is connected with the flexible circuit board connector.

[0010] Optionally, the heating unit is arranged on the front surface and / or the back surface of the battery.

[0011] Optionally, the size of the flexible circuit board is not greater than the size of the battery.

[0012] Optionally, the heating wire has a serpentine wiring mode in the flexible circuit board.

[0013] Optionally, the impedance of the heating wire is any value in the range of 11Ω to 15Ω.

[0014] Optionally, the heating unit is attached to the surface of the battery by an adhesive.

[0015] Optionally, a processor, a thermistor and a switch circuit are arranged on the printed circuit board; the thermistor is connected with the processor, and the processor is connected with the heating unit through the switch circuit.

[0016] The thermistor is arranged for detecting the ambient temperature.

[0017] The processor is arranged for controlling the switch circuit to be turned on to start the heating unit when the ambient temperature is lower than a first preset temperature, and controlling the switch circuit to be turned off to stop the heating unit when the ambient temperature is higher than a second preset temperature.

[0018] Optionally, the switch circuit is a MOS tube switch circuit.

[0019] Optionally, the thermistor is a negative temperature coefficient thermistor.

[0020] Compared with the prior art, the MIFI device provided by the embodiment of the application has the following advantages: the MIFI device is provided with a WiFi unit, a battery, a printed circuit board and a heating unit; the heating unit is connected with the printed circuit board and attached to the surface of the battery; the printed circuit board is arranged for controlling the heating unit to heat the battery when the ambient temperature is lower than a first preset temperature. In this way, the battery can be heated by the heating unit when the MIFI device is at a low temperature, so as to avoid the situation that the battery cannot realize charging and discharging due to the low temperature and meet the charging demand of the user. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of not paying the creative labor.

[0023] Figure 1 A structural schematic diagram of a MIFI device provided by the embodiment of the application;

[0024] Figure 2 A circuit schematic diagram of a MIFI device provided by the embodiment of the application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0026] It should be noted that in the description of the present application, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] Before further detailing the embodiments of the present application, the terms and terms involved in the embodiments of the present application are explained, and the terms and terms involved in the embodiments of the present application are applicable to the following explanations.

[0028] MiFi (Mobile WIFI) is a portable broadband wireless device, which integrates the functions of a modem, a router and an access point. The built-in modem can access a wireless signal, and the internal router can share the connection among multiple users and wireless devices. The MIFI device increases a mobile power supply on the basis of the MIFI, and the mobile power supply can store electric energy to charge the mobile terminal, so that the MIFI device has the functions of charging and discharging while having the function of WiFi.

[0029] Printed Circuit Board (PCB) is an important electronic component, which is a support for electronic components and a carrier for electrical connection between electronic components.

[0030] Flexible Printed Circuit (FPC) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness and good bending property.

[0031] Figure 1 A structure diagram of a MIFI device provided by the embodiments of the present application is shown in FIG. 1. Figure 1 The MIFI device of the present application comprises a WiFi unit, a printed circuit board 1, a battery 2 and a heating unit 3.

[0032] The heating unit is connected to the printed circuit board and is attached to the surface of the battery;

[0033] The printed circuit board (PCB) is used to control the heating unit to heat the battery when the ambient temperature is lower than a first preset temperature.

[0034] In some embodiments, by attaching a heating unit to the battery surface, the MIFI device can heat the battery at a lower temperature to avoid the inability to charge and discharge due to excessively low battery temperature, thus meeting the user's charging needs.

[0035] In an optional embodiment, the heating unit includes a flexible circuit board 31 and heating wires 32 disposed within the flexible circuit board;

[0036] A flexible circuit board connector 11 is provided on the printed circuit board;

[0037] The heating wire is connected to the flexible circuit board connector.

[0038] In some embodiments, by using a flexible printed circuit board (FPC), its good bendability allows for a closer fit to the battery surface. Furthermore, by using an FPC connector to connect the FPC, the PCB can control the FPC. When the heating wire is energized, heat is generated, and by releasing this heat, the battery is heated.

[0039] It is understood that the battery and the FPC can be bonded together, but not limited to, using adhesives. These adhesives can be, but are not limited to, glue, double-sided tape, etc.

[0040] The impedance of the heating wire is any value between 11Ω and 15Ω. For example, it can be 12Ω.

[0041] In an alternative embodiment, the heating unit is disposed on the front and / or back of the battery.

[0042] In some embodiments, the number of heating units can be set based on actual conditions. If there is only one heating unit, it can be located on the front or back of the battery. If there are two or more heating units, they can be located on both the front and back of the battery. By attaching additional heating units to both the front and back of the battery, the battery can heat up faster, thus providing charging services to users as quickly as possible.

[0043] Correspondingly, when the heating units are respectively set on the front and back sides of the battery, FPC connectors are respectively set on the front and back sides of the PCB so that the two heating units can be connected to the FPC connectors respectively.

[0044] In an optional embodiment, to avoid the heating unit heating components that do not require heating, the size of the flexible circuit board is not greater than the size of the battery.

[0045] It is understandable that the heating unit can also be wrapped around the surface of the battery, in which case the size of the flexible circuit board can exceed the size of the battery.

[0046] In one optional embodiment, to achieve a more uniform heating effect and increase the heating area, the heating wires are routed in a serpentine pattern within the flexible circuit board. This increases the contact area between the heating wires and the flexible circuit board, thereby increasing the heating area after the heating wires are activated and accelerating the heating of the battery.

[0047] Understandably, the amplitude and spacing of the serpentine lines can be adjusted according to actual needs to achieve the heating purpose.

[0048] It is understandable that the heating wires can be routed in other ways, such as in a straight line.

[0049] In an optional embodiment, see Figure 2 The printed circuit board is provided with a processor 12, a thermistor 13 and a switching circuit 14; the thermistor is connected to the processor, and the processor is connected to the heating unit through the switching circuit;

[0050] The thermistor is used to detect the ambient temperature;

[0051] The processor is configured to control the switching circuit to turn on when the ambient temperature is lower than a first preset temperature, so as to turn on the heating unit; and to control the switching circuit to turn off when the ambient temperature is higher than a second preset temperature, so as to turn off the heating unit.

[0052] In some embodiments, a thermistor is configured to detect the ambient temperature around the MIFI device. When the temperature is low, the heating unit is turned on to heat the battery. When the temperature rises, the heating unit is turned off to save energy and prevent the battery from overheating and exploding.

[0053] The processor can be, but is not limited to, a central processing unit (CPU), a PLC controller, or a microcontroller.

[0054] The first preset temperature is lower than the second preset temperature. For example, the first preset temperature is -12 degrees Celsius, and the second preset temperature is 0 degrees Celsius.

[0055] The switching circuit may be, but is not limited to, a MOSFET switching circuit. The thermistor may be, but is not limited to, a negative temperature coefficient (NTC) thermistor.

[0056] In one specific embodiment, an FPC connector is added to both the front and back of the PCB motherboard of the MIFI device, connecting two square FPCs. The two FPCs are then attached to the front and back of the battery using adhesive. The size of the FPCs is slightly smaller than the battery size, and the internal wiring of the FPCs follows a serpentine pattern. The impedance of the FPC wiring can be configured during PCB fabrication, and can be controlled to around 12Ω. The battery serves as the power source for the heating function, and a MOSFET switching circuit controls whether the heating function is activated. An NTC resistor is added to the PCB motherboard and placed in the low-temperature zone of the PCB to detect the ambient temperature. When the detected ambient temperature reaches below -20°C, the CPU controls the switching circuit to activate the heating function, heating the battery or external devices. When the temperature rises back above 0°C, the heating function stops, and the cycle repeats.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A MiFi device, characterized in that, include: WiFi unit, battery, printed circuit board, and heating unit; The heating unit is connected to the printed circuit board and is attached to the surface of the battery. The heating units are respectively disposed on the front and back of the battery. Flexible circuit board connectors are respectively disposed on the front and back of the printed circuit board so that the two heating units are respectively connected to the flexible circuit board connectors. The printed circuit board is used to control the heating unit to heat the battery when the ambient temperature is lower than a first preset temperature.

2. The MIFI device according to claim 1, characterized in that, The heating unit includes a flexible circuit board and heating wires disposed within the flexible circuit board; A flexible circuit board connector is provided on the printed circuit board; The heating wire is connected to the flexible circuit board connector.

3. The MIFI device according to claim 2, characterized in that, The size of the flexible circuit board does not exceed the size of the battery.

4. The MIFI device according to claim 2, characterized in that, The heating wires are routed in a serpentine pattern within the flexible circuit board.

5. The MIFI device according to claim 2, characterized in that, The impedance of the heating wire is any value between 11Ω and 15Ω.

6. The MIFI device according to claim 1, characterized in that, The heating unit is attached to the surface of the battery with an adhesive.

7. The MIFI device according to claim 1, characterized in that, The printed circuit board is provided with a processor, a thermistor, and a switching circuit; the thermistor is connected to the processor, and the processor is connected to the heating unit through the switching circuit; The thermistor is used to detect the ambient temperature; The processor is configured to control the switching circuit to turn on when the ambient temperature is lower than a first preset temperature, so as to turn on the heating unit; and to control the switching circuit to turn off when the ambient temperature is higher than a second preset temperature, so as to turn off the heating unit.

8. The MIFI device according to claim 7, characterized in that, The switching circuit is a MOSFET switching circuit.

9. The MIFI device according to claim 7, characterized in that, The thermistor is a negative temperature coefficient thermistor.

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