Wireless mobile power supply with easy heat dissipation

Abstract

The utility model discloses an easy heat dissipation's wireless mobile power supply, it includes battery, casing, transmitting coil module and heat conduction seat, the casing includes upper shell and lower shell, upper shell and lower shell butt joint constitute the accommodation chamber, and battery and transmitting coil module are accommodated in the accommodation chamber, the top surface of upper shell forms the coil seat shell that projects upward, and the top surface of upper shell still is provided with the let -by opening, and the heat conduction seat includes the heat conduction cross board and a plurality of vertical fixed on the heat conduction cross board and hold the wall, and the top of heat conduction cross board is clamped in the bottom surface of upper shell to close let -by opening, and the bottom of heat conduction cross board is butt joint on battery, and a plurality of hold the wall is spaced and parallelly arranged, and a plurality of hold the wall passes through let -by opening and projects upward from the top surface of upper shell, and hold the wall cooperation coil seat shell together supports mobile device, and the clearance between adjacent hold the wall, the space between coil seat shell and heat conduction seat can constitute airflow channel, and battery can be conducted from the inside of accommodation chamber to outside through heat conduction seat, help to improve the heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile power supplies, and in particular to a wireless mobile power supply that is easy to dissipate heat. Background Technology

[0002] A power bank, also known as a portable charger, is a portable charger that integrates power supply and charging functions. It can charge mobile devices such as mobile phones and tablets anytime and anywhere. Among them, wireless power banks use electromagnetic induction technology to exchange magnetic energy and electrical energy through changes in magnetic flux, so that the receiving mobile device can obtain power through electromagnetic induction. It has the convenience of not needing to use charging cables and charging anytime by simply placing it down.

[0003] In addition to the heat generated by internal chemical reactions within the battery and the operation of the charging management circuitry during wireless charging, significant heat is also generated by energy loss during the conversion of magnetic energy into electrical energy. In existing technologies, when a mobile device is placed on a wireless charging power bank, the device is in close contact with the surface of the power bank to enter the coil's effective range. Because heat dissipation is limited at the contact area between the mobile device and the power bank, the sustained high temperatures, as charging time increases, can accelerate the aging of both the mobile device's and the power bank's batteries, reducing their lifespan. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a wireless mobile power supply that is easy to dissipate heat in order to solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a wireless mobile power supply with easy heat dissipation, which includes a battery, a housing, a transmitting coil module, and a heat-conducting base. The transmitting coil module is disposed on the battery. The housing includes an upper shell and a lower shell, which are joined together to form a receiving cavity. The battery and the transmitting coil module are housed in the receiving cavity. The top surface of the upper shell forms an upwardly protruding coil base shell, and the transmitting coil module is fixed inside the coil base shell. The top surface of the upper shell also has a clearance opening that penetrates through the upper shell. The clearance opening is located on one side of the coil base shell above the battery. The heat-conducting base includes a heat-conducting horizontal plate and multiple support walls that are vertically fixed on the heat-conducting horizontal plate. The top of the heat-conducting horizontal plate is fixed to the bottom surface of the upper shell to close the clearance opening, and the bottom of the heat-conducting horizontal plate abuts against the battery. The multiple support walls are spaced apart from each other and arranged side by side. The multiple support walls pass through the clearance opening and protrude upward from the top surface of the upper shell.

[0007] Preferably, the top of the support wall is at the same height as the top of the coil housing.

[0008] Preferably, the bottom of the thermally conductive horizontal plate is bonded to the battery via a thermally conductive silicone layer.

[0009] Preferably, the top of the heat-conducting horizontal plate is provided with a snap-fit ​​connector, and the bottom surface of the upper shell is provided with a snap-fit ​​groove corresponding to the snap-fit ​​connector. The top of the heat-conducting horizontal plate is secured in the snap-fit ​​groove through the snap-fit ​​connector, so that the heat-conducting horizontal plate is connected to the bottom surface of the upper shell. The snap-fit ​​connector is arranged side by side with the support wall.

[0010] Preferably, the heat-conducting base is an aluminum alloy base or a graphene base.

[0011] Preferably, the length direction of the supporting wall is perpendicular to the length direction of the upper shell, and a plurality of grooves are provided on the outer periphery of the supporting wall, the length direction of the grooves being the same as the length direction of the supporting wall.

[0012] Preferably, the clearance opening is rectangular, and four corner protectors are respectively provided at the four corners of the clearance opening on the top surface of the upper shell. The plane where the top of the corner protector is located is lower than the plane where the top of the supporting wall is located, and the four corner protectors surround the outer periphery of the heat-conducting base.

[0013] Preferably, the outer periphery of the battery is covered with barley paper.

[0014] Preferably, the coil housing has an annular structure, and the height of the coil housing gradually increases from its center outwards to its top and then gradually decreases.

[0015] Preferably, the receiving chamber also contains a circuit board, the transmitting coil module and the battery are electrically connected to the circuit board respectively, and a downwardly extending baffle is formed on the bottom surface of the upper shell, the baffle is located between the circuit board and the heat-conducting base, and the baffle abuts against the battery.

[0016] The main technical effects achieved by this utility model are as follows:

[0017] Using the aforementioned heat-dissipating wireless power bank to charge mobile devices, the bottom of the mobile device can be supported by the heat-conducting base's support wall together with the coil housing. Since the support wall and coil housing protrude from the top surface of the upper shell, and the gaps between adjacent support walls and the space between the coil housing and the heat-conducting base can form airflow channels, the mobile device is prevented from being in close contact with the surface of the wireless power bank's housing. This helps heat to dissipate quickly through these airflow channels. Moreover, the heat-conducting plate of the heat-conducting base abuts against the battery of the wireless power bank, and the battery can be conducted from inside the housing cavity to the outside through the heat-conducting base, further improving the heat dissipation efficiency of the wireless power bank itself and preventing damage to the mobile device and the battery of the wireless power bank due to high temperature during charging. Attached Figure Description

[0018] Figure 1A schematic diagram of the structure of a heat-dissipating wireless mobile power supply provided by this utility model;

[0019] Figure 2 This is a cross-sectional view of the wireless mobile power supply.

[0020] Figure 3 For the corresponding Figure 1 A schematic diagram of the structure of the wireless power bank after removing the upper shell;

[0021] Figure 4 This is a schematic diagram of the upper shell of the wireless mobile power bank;

[0022] Figure 5 This is a schematic diagram of the heat-conducting base in the wireless mobile power supply.

[0023] The reference numerals in the above figures are as follows:

[0024] Battery 1;

[0025] Transmitting coil module 2;

[0026] Housing 3, clearance opening 301, slot 302, upper shell 31, top surface of upper shell 31a, bottom surface of upper shell 31b, coil base shell 311, corner protector block 312, stop bar 313, lower shell 32;

[0027] Heat-conducting base 4, heat-conducting horizontal plate 41, snap connector 411, support wall 42, groove 420, heat-conducting silicone layer 43;

[0028] Circuit board 5. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0030] To avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not of great importance are omitted.

[0031] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides a wireless mobile power supply with easy heat dissipation, which includes a battery 1, a transmitting coil module 2, a housing 3, and a heat-conducting base 4. (Refer to...) Figure 2In the coordinate system, the z-axis represents the up-down direction, the y-axis represents the left-right direction, and the x-axis represents the front-back direction. All descriptions of directions below refer to this coordinate system.

[0032] Among them, combined Figure 2 and Figure 3 As shown, the transmitting coil module 2 is mounted on the battery 1; the housing 3 includes an upper shell 31 and a lower shell 32, which are joined together to form a receiving chamber. Corresponding snap-fit ​​structures are provided on the upper shell 31 and the lower shell 32, allowing them to connect with each other. The battery 1 and the transmitting coil module 2 are housed within the receiving chamber. The battery 1 is located on the lower shell 32. The top surface 31a of the upper shell 31 forms an upwardly protruding coil base shell 311, and the transmitting coil module 2 is fixed within the coil base shell 311. (Refer to...) Figure 4 As shown, the top surface 31a of the upper shell 31 is also provided with a clearance opening 301 that penetrates the upper shell 31. The clearance opening 301 is located on one side of the coil holder shell 311 above the battery 1; combined with Figure 1 , Figure 2 as well as Figure 5 As shown, the heat-conducting base 4 includes a heat-conducting horizontal plate 41 and a plurality of support walls 42 erected and fixed on the heat-conducting horizontal plate 41. The top of the heat-conducting horizontal plate 41 is fixed to the bottom surface 31b of the upper shell 31 to close the clearance opening 301, and the bottom of the heat-conducting horizontal plate 41 abuts against the battery 1. The plurality of support walls 42 are spaced apart from each other and arranged side by side. The plurality of support walls 42 pass through the clearance opening 301 and protrude upward from the top surface 31a of the upper shell 31.

[0033] When charging a mobile device using the aforementioned heat-dissipating wireless power bank, the bottom of the mobile device is supported by the support wall 42 of the heat-conducting base 4 together with the coil housing 311. The support wall 42 and the coil housing 311 protrude from the top surface 31a of the upper housing 31, preventing the mobile device from being in close contact with the surface of the wireless power bank's housing 3. The gap between adjacent support walls 42 can form an airflow channel, allowing heat to dissipate quickly from the space between the coil housing 311 and the heat-conducting base 4 and these airflow channels. The heat-conducting horizontal plate 41 of the heat-conducting base 4 abuts against the battery 1, helping the heat of the battery 1 to be conducted from the inside of the housing to the outside through the heat-conducting horizontal plate 41 and the support wall 42, improving the heat dissipation efficiency of the wireless power bank, preventing damage to the mobile device and the battery 1 of the wireless power bank due to high temperature during charging, helping to extend the product's lifespan and improve the user experience.

[0034] Under the premise that the bottom of a typical mobile device is flat, in order to keep the mobile device balanced when placed on the support wall 42 and the coil housing 311 and to prevent it from slipping off the top surface 31a of the upper housing 31, preferably, the top of each of the support walls 42 and the top of the coil housing 311 are at the same height.

[0035] In this embodiment, when installing the heat-conducting base 4, the top of the heat-conducting horizontal plate 41 is first fixed to the bottom surface 31b of the upper shell 31, and the bottom of the heat-conducting horizontal plate 41 is bonded to the battery 1 through the heat-conducting silicone layer 43 to ensure that the bottom of the heat-conducting horizontal plate 41 is firmly connected to the battery 1 and has good heat conduction effect and insulation performance. The area of ​​the heat-conducting horizontal plate 41 is larger than the clearance opening 301 to close the clearance opening 301.

[0036] Specifically, the top of the heat-conducting horizontal plate 41 is provided with a snap-fit ​​connector 411, and the bottom surface 31b of the upper shell 31 is provided with a snap-fit ​​groove 302 corresponding to the snap-fit ​​connector 411. The top of the heat-conducting horizontal plate 41 is secured in the snap-fit ​​groove 302 through the snap-fit ​​connector 411, so that the heat-conducting horizontal plate 41 is connected to the bottom surface of the upper shell 31. The snap-fit ​​connector 411 is arranged side by side with the support wall 42. There are two snap-fit ​​connectors 411, which are formed by extending upward from the front and rear edges of the heat-conducting horizontal plate 41 respectively.

[0037] In this embodiment, the heat-conducting seat 4 is an aluminum alloy seat or a graphene seat. Aluminum alloy and graphene have good thermal conductivity and are suitable for setting the heat-conducting seat 4. The heat-conducting horizontal plate 41 and the supporting wall 42 of the heat-conducting seat 4 can be integrated or set separately and then fixed to each other.

[0038] The length direction of the support wall 42 is perpendicular to the length direction of the upper shell 31. Multiple grooves 420 are provided on the outer periphery of the support wall 42. The length direction of the grooves 420 is the same as the length direction of the support wall 42. The grooves 420 can increase the external area of ​​the support wall 42, thereby further improving the heat dissipation effect of the heat-conducting seat 4.

[0039] For example, the clearance opening 301 is rectangular, and four corner protectors 312 are respectively provided at the four corners of the clearance opening 301 on the top surface 31a of the upper shell 31. The plane where the top of the corner protector 312 is located is lower than the plane where the top of the supporting wall 42 is located, that is, the height of the corner protector 312 is lower than the height of the supporting wall 42 protruding from the top surface 31a of the upper shell 31. The four corner protectors 312 surround the outer periphery of the heat conduction base 4 to prevent the four corners of the heat conduction base 4 from being directly exposed. The corner protectors 312 are provided with an arc surface structure to further play a protective role.

[0040] The accommodating chamber also accommodates a circuit board 5, which is located on the side of the battery 1 away from the transmitting coil module 2. The transmitting coil module 2 and the battery 1 are electrically connected to the circuit board 5. A downwardly extending baffle 313 is formed on the bottom surface 31b of the upper shell 31. The baffle 313 is located between the circuit board 5 and the heat-conducting base 4. The baffle 313 abuts against the battery 1. The baffle 313 can both hold the battery 1 tightly to make the battery 1 installed securely and block the circuit board 5 from the heat-conducting base 4 to prevent the circuit board 5 from short-circuiting.

[0041] The battery 1 is covered with barley paper, which has good insulation and high temperature resistance properties. The space inside the cavity is compact, containing the battery 1, circuit board 5 and many conductive components such as solder joints. The barley paper can form a reliable insulation barrier and fill the gap between the battery 1 and the shell 3, making the installation of the battery 1 more compact and preventing the battery 1 from shifting or loosening when the wireless power bank shakes or falls.

[0042] Specifically, the coil housing 311 has a ring-shaped structure, and the height of the coil housing 311 gradually increases from its center outwards to its top and then gradually decreases. This adapts to the shape of the coil and reduces the contact area between the mobile device and the coil housing 311, thereby improving heat dissipation performance while ensuring the stability of the mobile device.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0044] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A wireless mobile power bank with easy heat dissipation, characterized in that, include: Battery (1); A transmitting coil module (2) is disposed on the battery (1); The housing (3) includes an upper shell (31) and a lower shell (32), which are joined together to form a receiving chamber. The battery (1) and the transmitting coil module (2) are housed in the receiving chamber. The top surface (31a) of the upper shell (31) forms an upwardly protruding coil base shell (311). The transmitting coil module (2) is fixed inside the coil base shell (311). The top surface (31a) of the upper shell (31) is also provided with a clearance opening (301) that penetrates the upper shell (31). The clearance opening (301) is located on one side of the coil base shell (311) above the battery (1). The heat-conducting base (4) includes a heat-conducting horizontal plate (41) and a plurality of support walls (42) that are vertically fixed on the heat-conducting horizontal plate (41). The top of the heat-conducting horizontal plate (41) is fixed to the bottom surface (31b) of the upper shell (31) to close the clearance opening (301), and the bottom of the heat-conducting horizontal plate (41) abuts against the battery (1). The plurality of support walls (42) are spaced apart from each other and arranged side by side. The plurality of support walls (42) pass through the clearance opening (301) and protrude upward from the top surface (31a) of the upper shell (31).

2. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The top of the support wall (42) is at the same height as the top of the coil housing (311).

3. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The bottom of the heat-conducting horizontal plate (41) is bonded to the battery (1) by a heat-conducting silicone layer (43).

4. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The top of the heat-conducting horizontal plate (41) is provided with a snap-fit ​​connector (411), and the bottom surface (31b) of the upper shell (31) is provided with a snap-fit ​​groove (302) corresponding to the snap-fit ​​connector (411). The top of the heat-conducting horizontal plate (41) is fixed in the snap-fit ​​groove (302) through the snap-fit ​​connector (411), so that the heat-conducting horizontal plate (41) is connected to the bottom surface of the upper shell (31). The snap-fit ​​connector (411) is arranged side by side with the support wall (42).

5. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The heat-conducting base (4) is an aluminum alloy base or a graphene base.

6. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The length direction of the support wall (42) is perpendicular to the length direction of the upper shell (31). A plurality of grooves (420) are provided on the outer periphery of the support wall (42), and the length direction of the grooves (420) is the same as the length direction of the support wall (42).

7. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The clearance opening (301) is rectangular. Four corner protectors (312) are respectively provided at the four corners of the clearance opening (301) on the top surface (31a) of the upper shell (31). The plane where the top of the corner protector (312) is located is lower than the plane where the top of the support wall (42) is located. The four corner protectors (312) surround the outer periphery of the heat-conducting base (4).

8. The heat-dissipating wireless power bank according to claim 1, characterized in that, The outer periphery of the battery (1) is covered with barley paper.

9. The easily heat-dissipating wireless mobile power bank according to claim 1, characterized in that, The coil housing (311) has a ring-shaped structure, and the height of the coil housing (311) gradually increases from its center outwards to its top and then gradually decreases.

10. The heat-dissipating wireless power bank according to claim 1, characterized in that, The accommodating chamber also accommodates a circuit board (5), the transmitting coil module (2) and the battery (1) are electrically connected to the circuit board (5) respectively, and the bottom surface (31b) of the upper shell (31) is formed with a downwardly extending baffle (313), the baffle (313) is located between the circuit board (5) and the heat-conducting seat (4), and the baffle (313) abuts against the battery (1).

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