Combined mobile phone with detachable battery

Abstract

The utility model discloses a mobile phone with a detachable combined battery. The mobile phone comprises a mobile phone main body, the combined battery and a battery cover, the combined battery is installed in a battery compartment inside the mobile phone main body, and the battery cover covers the back surface of the mobile phone main body; the combined battery comprises a battery main body and a compatible assembly used for wireless charging and NFC communication, and the compatible assembly is arranged on the front face of the battery main body and electrically connected with the elastic piece on the battery bin. The wireless charging and NFC communication functions are integrated on the surface of the battery, the placement position of an existing NFC module on the mainboard is changed, heat dissipation of components on the mainboard is not blocked any more, the heat dissipation structure of the mainboard is optimized, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, in particular to a combined mobile phone with a detachable battery. Background Art

[0002] Currently, most mobile phones have NFC (Near Field Communication) modules, such as Figure 1 The typical structure of a mobile phone shown in the figure, the battery (lithium-ion battery) 100 is installed in the battery compartment, and the NFC module 200 is installed at the position of the mainboard bracket above the mainboard. Although this structural design realizes the power supply and NFC functions of the mobile phone, the stacking design of the mobile phone structure requires that the mobile phone be as thin and light as possible (thin) while ensuring its heat dissipation efficiency. Various components on the mainboard will generate heat, and the NFC module is placed above the mainboard, occupying the stacking space of the mainboard and being close to other components on the mainboard, which affects the heat dissipation of the components on the mainboard. This will cause the hot air inside the mobile phone to accumulate and cannot be discharged well, and cannot achieve a good heat dissipation effect.

[0003] Therefore the prior art still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a mobile phone with a detachable combined battery, so as to solve the problem that the existing NFC module affects the heat dissipation of the mainboard.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mobile phone with a detachable assembled battery comprises a mobile phone body, an assembled battery and a battery cover; the assembled battery is installed in a battery compartment inside the mobile phone body, and the battery cover is covered on the back of the mobile phone body;

[0007] The combined battery comprises a battery body and a compatible component for wireless charging and NFC communication. The compatible component is arranged on the front side of the battery body and is electrically connected to a spring on the battery compartment.

[0008] In the combined battery detachable mobile phone, a layer of adhesive backing sheet is attached to the front of the battery body, a layer of nano chip is attached to the surface of the adhesive backing sheet, and the compatible component is attached to the surface of the nano chip.

[0009] In the combined battery detachable mobile phone, a first gold finger and a groove are arranged on one side of the battery body, and the second gold finger of the compatible component is bent at a right angle and then glued into the groove.

[0010] In the combined battery-detachable mobile phone, the compatible components include an upper covering film, an NFC coil, a first wireless charging coil, a second wireless charging coil and a lower covering film which are arranged in sequence from top to bottom; the first wireless charging coil and the second wireless charging coil overlap with each other and are located within the circle of the NFC coil, and the three coils are fixed between the two covering films after the upper covering film and the lower covering film are affixed.

[0011] In the combined battery detachable mobile phone, the second gold finger is composed of a membrane extending from one side of the upper film and four conductive contacts on the membrane; one end of the NFC coil extends out of the coil and is electrically connected to the first conductive contact and the second conductive contact, one end of the first wireless charging coil extends out of the coil and is electrically connected to the fourth conductive contact, and one end of the second wireless charging coil extends out of the coil and is electrically connected to the third conductive contact.

[0012] In the combined battery-detachable mobile phone, the outer circle of the first wireless charging coil and the inner circle of the NFC coil are spaced apart by a preset distance.

[0013] Compared with the prior art, the utility model provides a mobile phone with a detachable combined battery, comprising a mobile phone body, a combined battery and a battery cover; the combined battery is installed in a battery compartment inside the mobile phone body, and the battery cover is covered on the back of the mobile phone body; the combined battery comprises a battery body, and a compatible component for wireless charging and NFC communication, the compatible component is arranged on the front of the battery body and electrically connected to the spring on the battery compartment. Integrating the wireless charging and NFC communication functions on the battery surface changes the placement of the existing NFC module on the main board, no longer blocks the heat dissipation of components on the main board, optimizes the heat dissipation structure of the main board, and improves the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the typical internal structure of an existing mobile phone.

[0015] Figure 2 The present invention is a schematic diagram of a mobile phone provided by the present invention.

[0016] Figure 3 This is an exploded view of the mobile phone provided by the utility model.

[0017] Figure 4 This is a schematic structural diagram of the combined battery provided by the utility model.

[0018] Figure 5 This is a structural schematic diagram of the compatible components provided by the utility model.

[0019] Figure 6 A schematic diagram of current flow for wired charging of a mobile phone provided by the utility model.

[0020] Figure 7 A schematic diagram of current flow for wireless charging of a mobile phone provided by the utility model.

[0021] Figure 8 The present invention is a schematic diagram of two golden fingers provided by the present invention. DETAILED DESCRIPTION

[0022] The utility model provides a combined type mobile phone with a detachable battery. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model and are not used to limit the utility model.

[0023] Please also see Figure 2 , Figure 3 and Figure 4 The mobile phone provided in this embodiment includes a mobile phone body 1, a combined battery 2 and a battery cover 3, wherein the combined battery 2 is installed in a battery compartment 4 inside the mobile phone body 1, and the battery cover 3 covers the back of the mobile phone body 1; the combined battery 2 includes a battery body 5, and a compatible component 6 for wireless charging and NFC communication, wherein the compatible component 6 is arranged on the front of the battery body 5 (to prevent the compatible component 6 from moving, it can be fixed to the front of the battery body 5 by means of a back adhesive) and is electrically connected to the spring on the battery compartment to transmit current.

[0024] This embodiment integrates the NFC communication function on the battery, changes the placement of the existing NFC module on the mainboard, no longer blocks the heat dissipation of components on the mainboard, optimizes the heat dissipation structure of the mainboard, and improves the heat dissipation efficiency.

[0025] like Figure 4 As shown, in order to facilitate the installation of the compatible component 6, a layer of adhesive sheet 7 (with stickiness) is attached to the front of the battery body 5, and a layer of nano wafer 8 is attached to the surface of the adhesive sheet 7, and the compatible component 6 is attached to the surface of the nano wafer 8. The sizes of the adhesive sheet 7 and the nano wafer 8 match the compatible component 6, and the adhesive sheet 7 and the nano wafer 8 can provide a low-impedance path for the magnetic flux, reduce the magnetic lines radiating outward, reduce the impact on surrounding metal objects, and prevent the generation of eddy currents and signal interference.

[0026] Preferably, in order to facilitate current input, a first gold finger 9 and a groove 10 are provided on one side of the battery body 5, and the second gold finger 11 of the compatible component 6 is fixed in the groove 10 by adhesive bonding after being bent at a right angle (i.e., bent at 90 degrees), and the size of the groove 10 can just fit the second gold finger 11 and will not move back and forth. The first gold finger 9 of the battery body 5 and the second gold finger 11 of the compatible component 6 are on the same side, which is convenient for current transmission with the two springs on the battery compartment.

[0027] Please also read Figure 5 The compatible component 6 includes an upper film 12, an NFC coil 13, a first wireless charging coil 14, a second wireless charging coil 15 and a lower film 16 arranged in sequence from top to bottom; the first wireless charging coil 14 and the second wireless charging coil 15 overlap each other and are located in the circle of the NFC coil 13, and the upper film 12 and the lower film 16 are attached to fix the three coils between the two films; the second gold finger 11 is composed of a film 17 extending from one side of the upper film 12, and four conductive contacts 18 on the film 17. Figure 8 In the direction shown, from right to left, there are first conductive contact 181, second conductive contact 182, third conductive contact 183 and fourth conductive contact 184. One end of each coil is extended and bent at a right angle on a horizontal plane, and the bending angle and direction are such that the extended end can be placed on the corresponding conductive contact.

[0028] One end of the NFC coil 13 extends out of the coil and is electrically connected to the first conductive contact 181 and the second conductive contact 182 , one end of the first wireless charging coil 14 extends out of the coil and is electrically connected to the fourth conductive contact 184 , and one end of the second wireless charging coil 15 extends out of the coil and is electrically connected to the third conductive contact 183 .

[0029] Among them, the NFC coil 13 is preferably a copper coil wound into two circles in a square shape, with a gap between the two circles. The first wireless charging coil 14 and the second wireless charging coil 15 are both copper coils that can realize the wireless charging function and are wound into several circles with four arc-shaped corners and four straight sides. The circles are in close contact with each other. The first wireless charging coil 14 and the second wireless charging coil 15 are overlapped and placed inside the circle of the NFC coil 13. The outer circle of the first wireless charging coil and the inner circle of the NFC coil are separated by a preset distance (such as the copper wire width of the NFC coil 13), and the wireless charging and NFC communication functions will not affect each other. The extended end of the NFC coil 13 and the extended end of the first wireless charging coil 14 must overlap in some area. The copper wire in the overlapping area of ​​the first wireless charging coil 14 can be bent into a groove, and the copper wire of the overlapping part of the NFC coil 13 is accommodated in the groove. The groove depth is the same as the copper wire thickness of the NFC coil 13. This is equivalent to the NFC coil 13 and the first wireless charging coil 14 being in the same horizontal plane, and the second wireless charging coil 15 being in another horizontal plane. This can save space after the three coils overlap and reduce the overall thickness of the compatible component 6 as much as possible. The name of the compatible component 6 can be silk-screened on the upper film 12, such as Figure 3 NFC & wireless charging shown.

[0030] Please also read Figure 6 and Figure 7 , the working principle of the mobile phone is:

[0031] When the mobile phone is charged with an external charger, the current flows as follows Figure 6 As shown by the arrow, it first enters the motherboard inside the body through the USB interface 19, and a small part of the current is introduced into the second gold finger 11 through the existing second spring clip 20 in the battery compartment, and then enters the compatible component 6, and the compatible component 6 is powered and works normally; because there is no wireless charger at this time, the two wireless charging coils will not work. At this time, only the NFC coil 13 in the compatible component 6 is powered and works to emit signals outward. Most of the remaining current is introduced into the first gold finger 9 through the first spring clip 21, and then enters the battery body 5 and is stored by the battery body 5 to achieve wired charging. It should be understood that Figure 6 The assembled battery 2 is lifted up to facilitate understanding of the current flow direction, and the assembled battery 2 is actually placed flat in the battery compartment.

[0032] When the phone is placed on a wireless charger, Figure 7 As shown, when the current passes through the internal coil of the wireless charger, a magnetic field is generated, and the two wireless charging coils in the compatible component 6 generate current by inducing this magnetic field. The current is introduced into the second spring 20 through the second gold finger 11, and then enters the main board of the body to power the mobile phone; the main board introduces part of the current into the first gold finger 9 through the first spring 21, enters the battery body 5 and is stored by the battery body 5, realizing wireless charging.

[0033] When the mobile phone is in use, the battery body 5 and the compatible component 6 work at the same time. The current stored in the battery body 5 is introduced into the first spring 21 through the first gold finger 9 and enters the main board to power the mobile phone. The main board then introduces part of the current into the second gold finger 11 through the second spring 20 to power the compatible component 6, and the NFC coil 13 is powered to work. Since there is no wireless charger at this time, the two wireless charging coils will not work, and the compatible component 6 will not be powered and charged at the same time to cause current flow conflict.

[0034] In summary, the utility model provides a combined battery detachable mobile phone, which combines the NFC function and the wireless charging function into a compatible component, and installs the compatible component on the battery body and is located in the middle of the mobile phone, which changes the existing NFC module placement above the main board, releases the longitudinal space of the main board, occupies less main board space, is conducive to compact design, and can also be designed to stack the main board in a larger range, simplifying the design process of mobile phone structure stacking, providing greater possibilities for the design of other components, and making the design more flexible. At the same time, the heat dissipation structure is optimized, so that the main board has better heat dissipation conditions, improves heat dissipation efficiency, and thus improves mobile phone performance.

[0035] The division of the above functional modules is only for illustration. In practical applications, the above functions can be assigned to different functional modules as needed, that is, divided into different functional modules to complete all or part of the functions described above.

[0036] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.

Claims

1. A combined mobile phone with a detachable battery, characterized in that: It includes a mobile phone body, a combined battery and a battery cover; the combined battery is installed in a battery compartment inside the mobile phone body, and the battery cover is covered on the back of the mobile phone body; The combined battery comprises a battery body and a compatible component for wireless charging and NFC communication. The compatible component is arranged on the front side of the battery body and is electrically connected to a spring on the battery compartment.

2. The combined battery detachable mobile phone according to claim 1, characterized in that: A layer of back adhesive is attached to the front of the battery body, a layer of nano chip is attached to the surface of the back adhesive, and the compatible component is attached to the surface of the nano chip.

3. The combined battery detachable mobile phone according to claim 2, characterized in that: A first gold finger and a groove are arranged on one side surface of the battery body, and a second gold finger of the compatible component is bent at a right angle and then glued into the groove.

4. The combined battery detachable mobile phone according to claim 3, characterized in that: The compatible component includes an upper covering film, an NFC coil, a first wireless charging coil, a second wireless charging coil and a lower covering film which are arranged in sequence from top to bottom; the first wireless charging coil and the second wireless charging coil overlap each other and are located within the circle of the NFC coil, and the three coils are fixed between the two covering films after the upper covering film and the lower covering film are affixed.

5. The combined battery detachable mobile phone according to claim 4, characterized in that: The second gold finger is composed of a membrane extending from one side of the upper film and four conductive contacts on the membrane; one end of the NFC coil extends out of the coil and is electrically connected to the first conductive contact and the second conductive contact, one end of the first wireless charging coil extends out of the coil and is electrically connected to the fourth conductive contact, and one end of the second wireless charging coil extends out of the coil and is electrically connected to the third conductive contact.

6. The combined battery detachable mobile phone according to claim 4, characterized in that: The outer circle of the first wireless charging coil is spaced a preset distance from the inner circle of the NFC coil.

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