Tail plug type power bank

Abstract

The utility model discloses a tail plug type power bank, which comprises a shell, a battery, a PCB (printed circuit board), an inner support and a rotary plug are arranged in the shell, the battery, the PCB and the inner support are all fixed in the shell, the battery and the rotary plug are respectively and electrically connected with the PCB, the rotary plug comprises a rotary shaft, and the rotary shaft is connected with the rotary plug. The rotating shaft is rotatably matched with the inner support, two Z-shaped elastic pieces are arranged at the bottom of the inner support, the first ends of the two Z-shaped elastic pieces are fixedly connected to the positions, close to the edges of the two sides, of the inner support respectively, and the second ends of the Z-shaped elastic pieces stretch out towards the upper portion of the inner support. The two ends of the rotating shaft are respectively provided with a protruding part which protrudes laterally, and the protruding parts correspond to the second ends of the Z-shaped elastic pieces one to one and abut against the second ends of the Z-shaped elastic pieces. The rotary positioning device can stably and reliably rotate and position, and is simple in structure and space-saving.

Description

Technical Field

[0001] The utility model relates to a power bank, in particular to a tail plug-in type power bank. Background Art

[0002] Power banks can be used to charge electronic devices such as mobile phones. Currently, there are some power banks on the market that can be plugged into the rear end of electronic devices. Such power banks can be carried together with mobile phones and tablets. In order to avoid collision with the plug of the power bank during carrying, the charging plug of such tail-plug power banks is generally configured as a rotating hidden structure, which cooperates with structures such as torsion springs to achieve elastic rotation. However, the structure of the existing rotating mechanism is relatively complex, involving multiple components such as torsion springs, limiters, and hinges. After rotation, an elastic buckle is required to limit the position, which not only takes up a large space, but also has low reliability in positioning after rotation. Under long-term use conditions, the rotation positioning function will be lost due to damage to the buckle, and the structural stability is poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tail-plug type power bank which can stably and reliably rotate and position, has a simple structure and saves space, in view of the deficiencies of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A tail plug-in power bank comprises a shell, in which a battery, a PCB board, an inner bracket and a rotating plug are arranged, the battery, the PCB board and the inner bracket are all fixed in the shell, and the battery and the rotating plug are respectively electrically connected to the PCB board, the rotating plug comprises a rotating shaft, the rotating shaft is rotatably matched with the inner bracket, two Z-shaped spring pieces are arranged at the bottom of the inner bracket, the first ends of the two Z-shaped spring pieces are respectively fixedly connected to the positions of the inner bracket near the edges on both sides, the second ends of the Z-shaped spring pieces extend above the inner bracket, and laterally protruding protrusions are respectively formed at both ends of the rotating shaft, the protrusions correspond one-to-one with the second ends of the Z-shaped spring pieces and abut against each other.

[0006] Preferably, the inner bracket is fixed below the PCB board, a first avoidance opening through which the rotating plug can pass is formed on the PCB board, and a second avoidance opening through which the rotating plug can pass is formed on the inner bracket.

[0007] Preferably, an inner shell is fixed inside the shell, and the battery is clamped between the inner shell and the shell.

[0008] Preferably, the inner bracket and the PCB board are both fixedly connected to the inner shell.

[0009] Preferably, a top cover is fixed on the shell, a receiving groove is embedded in the top cover, and the rotating plug is arranged in the receiving groove.

[0010] Preferably, the rotary plug includes two terminals of different interface types, the outer side of the rotary plug is covered with a dust cap, the outer side of the shell is covered with a silicone sleeve, and the silicone sleeve is integrally formed with the dust cap.

[0011] Preferably, a circular groove is provided at one end of the shell, a detachable wireless charging module is provided in the circular groove, and the wireless charging module is electrically connected to the PCB board through a wire.

[0012] Preferably, a wire buckle is fixed between the PCB board and the inner shell, and the wire is fixedly connected to the wire buckle.

[0013] Preferably, a ferromagnetic component is embedded in the circular groove, and the ferromagnetic component is magnetically matched with a magnet built into the wireless charging module.

[0014] Preferably, a bracket seat is fixed to one side of the shell, a bracket is provided on the bracket seat, and one end of the bracket is hingedly connected to the bracket seat.

[0015] In the invention disclosed in the utility model, the rotating plug is connected to the inner bracket through the rotating shaft hinge, and two Z-shaped spring pieces are fixed at the bottom of the inner bracket, and the two Z-shaped spring pieces are bent in a Z shape so that the second ends thereof are placed above the inner bracket and aligned with the two ends of the rotating shaft, and the two ends of the rotating shaft are respectively formed with laterally protruding protrusions, and the two protrusions are respectively elastically abutted against the second ends of the two Z-shaped spring pieces. Based on the above structure, the two Z-shaped spring pieces play a positioning role in the rotation state of the rotating shaft. Specifically, when the rotating plug is rotated 90°, it can be positioned in the rotated state. At the same time, based on the elastic effect of the Z-shaped spring pieces, there is no need to additionally set up torsion springs, limit buckles and other components. Compared with the prior art, the structure of the utility model is simpler and can save space better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the tail plug-in power bank of the utility model;

[0017] Figure 2 This is an exploded view of the tail-plug type power bank of the utility model;

[0018] Figure 3 It is the structural diagram of PCB board, inner bracket, rotating plug and inner shell;

[0019] Figure 4 This is the structural diagram of the PCB board, inner shell and wire clip;

[0020] Figure 5 This is a three-dimensional diagram of the utility model in an oblique support state;

[0021] Figure 6 This is an exploded view of a replacement structure of the utility model;

[0022] Figure 7 This is another alternative structural exploded view of the utility model;

[0023] Figure 8 This is an exploded view of the third replacement structure of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0025] The utility model discloses a tail plug type power bank, combined with Figures 1 to 5 As shown, it includes a shell 1, in which a battery, a PCB board 2, an inner bracket 3 and a rotating plug 4 are arranged, the battery, the PCB board 2 and the inner bracket 3 are all fixed in the shell 1, and the battery and the rotating plug 4 are respectively electrically connected to the PCB board 2, the rotating plug 4 includes a rotating shaft 40, the rotating shaft 40 is rotatably matched with the inner bracket 3, two Z-shaped springs 30 are arranged at the bottom of the inner bracket 3, the first ends of the two Z-shaped springs 30 are respectively fixedly connected to the positions of the inner bracket 3 near the two side edges, the second ends of the Z-shaped springs 30 extend above the inner bracket 3, and the two ends of the rotating shaft 40 are respectively formed with laterally protruding protrusions 41, the protrusions 41 correspond to the second ends of the Z-shaped springs 30 one by one and abut against each other.

[0026] In the above structure, the rotating plug 4 is hinged to the inner bracket 3 through the rotating shaft 40, and two Z-shaped spring pieces 30 are fixed at the bottom of the inner bracket 3. The two Z-shaped spring pieces 30 are bent in a Z shape so that the second ends thereof are placed above the inner bracket 3 and aligned with the two ends of the rotating shaft 40. The two ends of the rotating shaft 40 are respectively formed with laterally protruding protrusions 41, and the two protrusions 41 are elastically abutted against the second ends of the two Z-shaped spring pieces 30 respectively. Based on the above structure, the two Z-shaped spring pieces 30 play a positioning role in the rotation state of the rotating shaft 40. Specifically, when the rotating plug 4 is rotated 90°, it can be positioned in the rotated state. At the same time, based on the elastic effect of the Z-shaped spring pieces 30, there is no need to additionally set up components such as torsion springs and limit buckles. Compared with the prior art, the structure of the utility model is simpler and can save space better.

[0027] In order to reliably fix the inner bracket 3, in this embodiment, see Figure 2 and Figure 3The inner bracket 3 is fixed below the PCB board 2, the PCB board 2 is provided with a first avoidance opening 20 through which the rotary plug 4 can pass, and the inner bracket 3 is provided with a second avoidance opening 31 through which the rotary plug 4 can pass. The above structure can conveniently electrically connect the rotary plug 4 to the PCB board 2, and the assembly structure is more compact.

[0028] On this basis, an inner shell 5 is fixed inside the shell 1, and the battery is clamped between the inner shell 5 and the shell 1. Furthermore, the inner bracket 3 and the PCB board 2 are both fixedly connected to the inner shell 5.

[0029] The inner shell 5 covers and fixes the battery, and separates the battery from the PCB board 2, so that the internal space of the shell 1 is more compact.

[0030] In order to better accommodate the rotating plug 4 , in this embodiment, a top cover 6 is fixed to the housing 1 , a receiving groove 7 is embedded in the top cover 6 , and the rotating plug 4 is disposed in the receiving groove 7 .

[0031] As a preferred embodiment, the rotating plug 4 includes at least two terminals 42 of different interface types. Specifically, the two terminals 42 are a Lightning interface and a type-c interface. In a preferred embodiment, see Figure 5 The outer side of the rotary plug 4 is provided with a dust cap 43. In another embodiment, see Figure 6 The outer side of the housing 1 is covered with a silicone sleeve 16, and the silicone sleeve 16 is integrally formed with the dust cap 43. The rotary plug 4 includes two or three terminals 42, and the angle between two adjacent terminals 42 is 90°.

[0032] This embodiment also has a wireless charging function. Specifically, a circular groove 10 is provided at one end of the housing 1. A detachable wireless charging module 11 is provided in the circular groove 10. The wireless charging module 11 is electrically connected to the PCB board 2 through a wire 12. When in use, the wireless charging module 11 can be taken out of the circular groove 10, and the wireless charging module 11 can be used to charge electronic devices such as smart watches.

[0033] See also Figure 8 In another embodiment, the PCB board 2 is provided with an LED lamp assembly 21, and the receiving groove 7 is provided with a light-transmitting strip 70, and the light-transmitting strip 70 is provided above the LED lamp assembly 21. The LED lamp assembly 21 is used as an indicator light, and the housing 1 is provided with a lanyard hole 15.

[0034] In practical applications, the wireless charging module 11 and the circular groove 10 can be detachably connected by interference fit, snap fit, or magnetic fit. For example, a ferromagnetic part is embedded in the circular groove 10, and the ferromagnetic part is magnetically matched with a magnet built into the wireless charging module 11.

[0035] In order to reliably fix the wire 12, in this embodiment, see Figure 4 A wire buckle 8 is fixed between the PCB board 2 and the inner shell 5 , and the wire 12 is fixedly connected to the wire buckle 8 .

[0036] This embodiment also has an oblique support function. Specifically, combined with Figure 1 and Figure 5 As shown, a bracket seat 13 is fixed to one side of the housing 1, and a bracket 14 is provided on the bracket seat 13, and one end of the bracket 14 is hingedly connected to the bracket seat 13. When the bracket 14 is unfolded outward, the housing 1 and the mobile phone plugged into the rotating plug 4 can be supported in an oblique state, so that the user can view the mobile phone screen conveniently.

[0037] As an alternative, see Figure 7 The two Z-shaped spring pieces 30 can be integrally formed components.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tail plug type power bank, characterized in that: The invention comprises a shell (1), wherein a battery, a PCB board (2), an inner bracket (3) and a rotating plug (4) are arranged in the shell (1), wherein the battery, the PCB board (2) and the inner bracket (3) are all fixed in the shell (1), and the battery and the rotating plug (4) are respectively electrically connected to the PCB board (2), wherein the rotating plug (4) comprises a rotating shaft (40), wherein the rotating shaft (40) is rotatably matched with the inner bracket (3), wherein two Z-shaped spring sheets (30) are arranged at the bottom of the inner bracket (3), wherein the first ends of the two Z-shaped spring sheets (30) are respectively fixedly connected to positions close to two side edges of the inner bracket (3), and the second ends of the Z-shaped spring sheets (30) extend upward from the inner bracket (3), and the two ends of the rotating shaft (40) are respectively formed with laterally protruding protrusions (41), wherein the protrusions (41) correspond to the second ends of the Z-shaped spring sheets (30) one by one and abut against each other.

2. The tail plug type power bank as claimed in claim 1, characterized in that: The inner bracket (3) is fixed below the PCB board (2); the PCB board (2) is provided with a first avoidance opening (20) through which the rotating plug (4) can pass; and the inner bracket (3) is provided with a second avoidance opening (31) through which the rotating plug (4) can pass.

3. The tail plug type power bank as claimed in claim 1, characterized in that: An inner shell (5) is fixed inside the shell (1), and the battery is clamped between the inner shell (5) and the shell (1).

4. The tail plug type power bank as claimed in claim 3, characterized in that: The inner bracket (3) and the PCB board (2) are both fixedly connected to the inner shell (5).

5. The tail plug type power bank as claimed in claim 4, characterized in that: A top cover (6) is fixed on the housing (1), a receiving groove (7) is embedded in the top cover (6), and the rotary plug (4) is arranged in the receiving groove (7).

6. The tail plug type power bank as claimed in claim 1, characterized in that: The rotary plug (4) comprises at least two terminals (42) of different interface types, the outer side of the rotary plug (4) is provided with a dust cap (43), the outer side of the housing (1) is provided with a silicone sleeve (16), and the silicone sleeve (16) and the dust cap (43) are integrally formed.

7. The tail plug type power bank as claimed in claim 5, characterized in that: A circular groove (10) is provided at one end of the shell (1), a detachable wireless charging module (11) is provided in the circular groove (10), the wireless charging module (11) is electrically connected to the PCB board (2) via a wire (12), a wire clip (8) is fixed between the PCB board (2) and the inner shell (5), and the wire (12) is fixedly connected to the wire clip (8).

8. The tail plug type power bank as claimed in claim 7, characterized in that: The PCB board (2) is provided with an LED lamp assembly (21), and the receiving groove (7) is provided with a light-transmitting strip (70), wherein the light-transmitting strip (70) is arranged above the LED lamp assembly (21).

9. The tail plug type power bank as claimed in claim 7, characterized in that: A ferromagnetic component is embedded in the circular groove (10), and the ferromagnetic component is magnetically matched with a magnet built into the wireless charging module (11).

10. The tail plug type power bank as claimed in claim 1, characterized in that: A support seat (13) is fixed on one side of the shell (1), a support seat (13) is provided with a support (14), and one end of the support seat (14) is hingedly connected to the support seat (13).

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