Mobile power supply with cigarette lighting function

Abstract

The utility model relates to a mobile power supply with a cigarette lighting function. The mobile power supply comprises a bottom shell; the power supply module is arranged in the bottom shell and is used for supplying power to external equipment; the supporting plate is arranged on the bottom shell, and a cigarette lighting opening is formed in the supporting plate; the heating mainboard is arranged in the bottom shell and electrically connected with the power module, a heating control circuit and a heating piece electrically connected with the heating control circuit are arranged on the heating mainboard, the heating piece faces the cigarette lighting opening, an elastic switch is arranged on the heating mainboard, and on-off of the heating control circuit is controlled by opening or closing of the elastic switch; the switch cap is arranged on the supporting plate in a sliding mode and can cover the cigarette lighting opening, the switch cap and the heating mainboard are located on the two sides of the supporting plate respectively, and a sliding block used for controlling the elastic switch to be turned on or turned off is arranged on the switch cap. Meanwhile, a switch cap is arranged, so that the safety in the using process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mobile power supplies, and in particular to a mobile power supply with a cigarette lighter function. Background Art

[0002] With the development of technology, handheld mobile devices such as wireless phones and laptops have become an important part of people's lives. Mobile power supplies have also become important mobile energy supply devices in people's daily lives to charge handheld mobile devices in situations where there is no external power supply.

[0003] Existing mobile power supplies can generally only be used to power or charge electronic devices, and cannot provide users with more convenient functions (such as cigarette lighter function). The cigarette lighter port of the mobile power supplies with cigarette lighter function on the market is exposed, and it is easy to accidentally touch the heating switch and start the cigarette lighter function when carrying the mobile power supply. The heating wire heats up quickly and may ignite combustibles near the cigarette lighter port in a short time, resulting in certain safety hazards during the use of the mobile power supply. Utility Model Content

[0004] The present application provides a mobile power supply with a cigarette lighter function to solve the technical problem that the cigarette lighter port of the existing mobile power supply is exposed, posing a potential safety hazard.

[0005] In a first aspect, the present application provides a mobile power supply with a cigarette lighter function, comprising: a bottom shell; a power module, arranged in the bottom shell, for supplying power to an external device; a support plate, arranged on the bottom shell, and provided with a cigarette lighter port; a heating mainboard, arranged in the bottom shell and electrically connected to the power module, the heating mainboard being provided with a heating control circuit and a heating element electrically connected thereto, the heating element facing the cigarette lighter port, the heating mainboard being provided with an elastic switch, which is opened or closed by the elastic switch to control the on-off of the heating control circuit; and a switch cap, slidably arranged on the support plate and capable of covering the cigarette lighter port, the switch cap and the heating mainboard being respectively located on both sides of the support plate, and the switch cap being provided with a slider for controlling the opening or closing of the elastic switch.

[0006] In one possible implementation, the elastic switch includes a contact piece and a spring sheet, which are located on the same side of the heating mainboard. One end of the spring sheet is connected to the heating mainboard, and the other end is suspended. The positive projection of the suspended part of the spring sheet on the heating mainboard at least partially covers the contact piece.

[0007] In a possible implementation, the suspended portion of the spring is tilted relative to the heat generating mainboard, and the orthographic projection of the slider on the longitudinal center plane at least partially covers the orthographic projection of the spring on the longitudinal center plane.

[0008] In a possible implementation, a first sliding groove is provided on the support plate, and one end of the sliding block close to the support plate passes through the first sliding groove and is provided with a hook.

[0009] In a possible implementation, a first accommodating groove is provided on the support plate, a spring is provided in the first accommodating groove, a base and a column connected thereto are provided on the side of the switch cap facing the support plate, the spring is sleeved around the column, one end of the spring is fixedly connected to the base, and the other end is fixedly connected to the support plate.

[0010] In a possible implementation manner, a reinforcement plate is provided on a side of the support plate facing the switch cap.

[0011] In a possible implementation, a side of the switch cap facing away from the heating mainboard is provided with an anti-slip bump.

[0012] In a possible implementation, a charging port is provided on the power module, a charging socket is provided on the bottom shell, and the charging port is embedded in the charging socket.

[0013] In a possible implementation, an inner side wall of the bottom shell is provided with a mounting groove, and the heating mainboard is plugged into the mounting groove.

[0014] In a possible implementation, a connection terminal is provided on the power module, and the heating mainboard is connected to the power module via the connection terminal.

[0015] In a possible implementation, an upper cover is further included, and the upper cover is covered on the bottom shell and the two are connected by a snap-fit ​​structure.

[0016] In a possible implementation, the snap structure includes a snap block and a snap slot snap-connected thereto, the snap block is disposed on a side of the upper cover facing the bottom shell, and the snap slot is disposed on an inner side wall of the bottom shell.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] When using the mobile power supply with cigarette-lighting function provided by the embodiment of the present application, press and hold the switch cap and slide the switch cap in the direction away from the cigarette-lighting port until the elastic switch is changed to the open state under the pressure of the slider, and the heating control circuit is turned on, so that the heating element heats up and reaches the cigarette-lighting temperature. At this time, the cigarette-lighting port is exposed, which is convenient for users to use. When the cigarette-lighting function is not needed, the switch cap covers the cigarette-lighting port to make the cigarette-lighting port closed, avoiding the safety hazard caused by accidentally touching the switch, and ensuring the safety of the mobile power supply. The mobile power supply can not only supply power to external devices, but also realize the cigarette-lighting function, and at the same time improve the safety of the use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A schematic diagram of the structure of a mobile power supply with a cigarette lighter function provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 The exploded schematic diagram of the structure of the mobile power supply is shown;

[0024] Figure 3 for Figure 1 A partial structural schematic diagram of a mobile power supply is shown;

[0025] Figure 4 for Figure 1 The top view of the mobile power supply with the upper cover removed is shown;

[0026] Figure 5 for Figure 1 Displays the usage status of the mobile power supply Figure 1 , wherein the elastic switch is in a connected state;

[0027] Figure 6 for Figure 1 Displays the usage status of the mobile power supply Figure 2 , where the elastic switch is in the off state.

[0028] Description of reference numerals:

[0029] 1. Bottom shell; 11. Charging socket; 12. Mounting slot; 13. Card slot; 2. Power module; 21. Wiring terminal; 3. Support plate; 31. Cigarette lighter port; 32. First slide slot; 33. First receiving slot; 34. Spring; 4. Heating main board; 41. Heating element; 42. Elastic switch; 421. Contact piece; 422. Shrapnel; 5. Switch cap; 51. Slider; 511. Hook; 52. Base; 53. Column; 54. Anti-slip bump; 6. Reinforcement plate; 61. Second slide slot; 62. Second receiving slot; 7. Upper cover; 71. Card block; 8. Longitudinal center plane. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] For ease of description, spatial relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0033] In the prior art, mobile power supplies can generally only be used to power or charge electronic devices, and cannot provide users with more convenient functions (such as cigarette lighting). However, mobile power supplies with cigarette lighting functions on the market, such as the patent with application number 202022023018.7, have an exposed cigarette lighter port. It is easy to accidentally touch the heating switch and activate the cigarette lighting function while carrying the mobile power supply. The heating wire heats up quickly and may ignite combustibles near the cigarette lighter port in a short period of time, resulting in certain safety hazards during the use of the mobile power supply.

[0034] In order to solve the technical problem in the prior art that the cigarette lighter port of the mobile power supply is exposed and there is a safety hazard, the present application provides a mobile power supply with a battery cell and a cigarette lighter function, which can avoid the safety hazard caused by accidentally touching the switch and ensure the safe use of the mobile power supply.

[0035] Figure 1 and Figure 2 A mobile power supply with a cigarette-lighting function provided in an embodiment of the present application comprises a bottom shell 1, a power module 2, a support plate 3, a heating mainboard 4 and a switch cap 5; the power module 2 is arranged in the bottom shell 1 for supplying power to external devices; the support plate 3 is arranged on the bottom shell 1, and a cigarette-lighting port 31 is arranged on the support plate 3; the heating mainboard 4 is arranged in the bottom shell 1 and electrically connected to the power module 2, a heating control circuit and a heating element 41 electrically connected thereto are arranged on the heating mainboard 4, the heating element 41 faces the cigarette-lighting port 31, an elastic switch 42 is arranged on the heating mainboard 4, and the heating control circuit is controlled by opening or closing the elastic switch 42; the switch cap 5 is slidably arranged on the support plate 3 and can cover the cigarette-lighting port 31, the switch cap 5 and the heating mainboard 4 are respectively located on both sides of the support plate 3, and a slider 51 for controlling the opening or closing of the elastic switch 42 is arranged on the switch cap 5.

[0036] It should be noted that the elastic switch 42 is a normally open switch, that is, it is in a closed state under normal conditions. When in use, press and hold the switch cap 5, and slide the switch cap 5 in a direction away from the cigarette lighter port 31 until the elastic switch 42 is changed to an open state under the pressure of the slider 51, and the heating control circuit is turned on, so that the heating element 41 heats up and reaches the cigarette lighting temperature. At this time, the cigarette lighter port 31 is exposed, which is convenient for users to use. When the cigarette lighting function is not needed, the switch cap 5 covers the cigarette lighter port 31 to make the cigarette lighter port 31 in a closed state, avoiding the safety hazards caused by accidentally touching the switch, and ensuring the safety of the mobile power supply. This mobile power supply can not only supply power to external devices, but also realize the cigarette lighting function, while improving the safety of the use process.

[0037] In some embodiments, Figure 3 and Figure 4 As shown, the elastic switch 42 includes a contact piece 421 and a spring piece 422. The spring piece 422 and the contact piece 421 are located on the same side of the heating main board 4. One end of the spring piece 422 is connected to the heating main board 4, and the other end is suspended. The orthographic projection of the suspended part of the spring piece 422 on the heating main board 4 at least partially covers the contact piece 421. Figure 4 As shown, when in use, the slider 51 moves along with the switch cap 5 toward the direction close to the spring sheet 422 , and the spring sheet 422 is in contact with the contact sheet 421 under the squeezing force of the slider 51 , so that the heating control circuit is turned on.

[0038] Furthermore, the suspended portion of the spring sheet 422 is tilted relative to the heat generating mainboard 4, and the orthographic projection of the slider 51 on the longitudinal center plane 8 at least partially covers the orthographic projection of the spring sheet 422 on the longitudinal center plane 8. The slider 51 can abut against the spring sheet 422 during the sliding process and exert pressure on the spring sheet 422, so that the suspended portion of the spring sheet 422 moves toward the direction close to the contact sheet 421.

[0039] Furthermore, a first slide groove 32 is provided on the support plate 3, and one end of the slider 51 close to the support plate 3 passes through the first slide groove 32 and is provided with a hook 511, so that the slider 51 maintains smoothness during sliding, and the slider 51 is not easy to disengage from the first slide groove 32.

[0040] In some embodiments, Figure 3 and Figure 5 As shown, the support plate 3 is provided with a first receiving groove 33, and a spring 34 is provided in the first receiving groove 33. The switch cap 5 is provided with a base 52 and a column 53 connected thereto on the side facing the support plate 3. The spring 34 is sleeved around the column 53. One end of the spring 34 is fixedly connected to the base 52, and the other end is fixedly connected to the support plate 3. After the switch cap 5 is released, the slider 51 can be restored to its original state under the elastic force of the spring 34, as shown in FIG. Figure 5 As shown, the switch cap 5 covers the cigarette lighter port 31 to ensure safe use. At the same time, due to the elastic effect of the spring 34, the user needs to continue pressing the switch cap 5, and the slider 51 on the switch cap 5 presses against the spring 422 to make the heating wire continue to heat, further ensuring safe use.

[0041] Furthermore, two first sliding grooves 32 are provided, and the two first sliding grooves 32 are symmetrically arranged on both sides of the spring 34 , and two sliding blocks 51 are correspondingly provided to improve the sliding stability of the sliding block 51 .

[0042] In some embodiments, Figure 2 As shown, a reinforcing plate 6 is provided on the side of the support plate 3 facing the switch cap 5, and a second slide groove 61 corresponding to and connected with the first slide groove 32 is provided on the reinforcing plate 6, and a second receiving groove 62 corresponding to and connected with the first receiving groove 33 is provided. Optionally, the reinforcing plate 6 is a steel sheet. Since the support plate 3 is a thin plate structure, its structural strength is relatively low. When using the cigarette lighting function, the switch cap 5 needs to be pushed repeatedly, which easily causes the support plate 3 to bend and crack. The reinforcing plate 6 can improve the structural strength of the support plate 3, thereby improving the service life of the mobile power supply.

[0043] In some embodiments, a side of the switch cap 5 facing away from the heating mainboard 4 is provided with anti-slip bumps 54 to increase friction, making it easier for users to push the switch cap 5 and improving the feel of use.

[0044] In some embodiments, Figure 1As shown, the power module 2 is provided with a charging port, the bottom shell 1 is provided with a charging socket 11, and the charging port is embedded in the charging socket 11. Specifically, the power module 2 is provided with a charging and discharging control circuit, the bottom shell 1 is provided with a power switch for controlling the on and off of the charging and discharging control circuit, one end of the charging port is connected to the charging and discharging control circuit, and the other end is connected to the power switch. When charging is required, pressing the power switch can realize the conduction of the charging and discharging control circuit, and the external device can be charged through the charging socket 11.

[0045] Optionally, the charging port can be a USB-A port, a USB-MIC port, a USB-C port, and a TYPE-C port. It is worth noting that the position, type, and number of the charging port can be added and replaced according to actual needs.

[0046] In some embodiments, Figure 6 As shown, the inner wall of the bottom shell 1 is provided with a mounting groove 12, and the heating mainboard 4 is inserted into the mounting groove 12. Preferably, the mounting groove 12 is U-shaped, and the thickness of the mounting groove 12 is adapted to the thickness of the heating mainboard 4 to facilitate the installation of the heating mainboard 4.

[0047] In some embodiments, Figure 2 As shown, the power module 2 is provided with a connection terminal 21 , and the heating mainboard 4 is connected to the power module 2 via the connection terminal 21 , so that the power module 2 and the heating mainboard 4 are electrically connected.

[0048] In some embodiments, an upper cover 7 is further included, and the upper cover 7 covers the bottom shell 1 and the two are connected by a snap-fit ​​structure. The upper cover 7 and the bottom shell 1 are detachably connected by the snap-fit ​​structure, which improves the convenience of installation.

[0049] In an optional embodiment, the buckle structure includes a block 71 and a slot 13 connected thereto, wherein the block 71 is disposed on the side of the upper cover 7 facing the bottom shell 1, and the slot 13 is disposed on the inner wall of the bottom shell 1. It is worth noting that a plurality of blocks 71 and slots 13 are provided to improve the stability of the connection between the upper cover 7 and the bottom shell 1.

[0050] Optionally, the power module 2 includes a circuit board and a battery cell arranged on the circuit board. The heating wire adopts a high-strength and durable heating tungsten wire, and the battery cell adopts a large-capacity battery cell, thereby ensuring the service life and maximum usage time of the mobile power supply.

[0051] The assembly sequence of mobile power is as follows: Figure 2 As shown: the heating mainboard 4 is installed into the card slot 13 from top to bottom, and the reinforcing plate 6, the switch cap 5 and the spring 34 are installed in sequence from the side with the cigarette lighter port 31, and the power module 2 is installed into the bottom shell 1 from top to bottom. The power module 2 is fixed with screws around, and the bottom of the battery cell is fixed to the circuit board by dispensing glue.

[0052] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0053] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0054] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A mobile power source with a cigarette lighter function, characterized in that: include: Bottom shell (1); A power module (2), arranged in the bottom shell (1), and used to supply power to external devices; A support plate (3) is arranged on the bottom shell (1), and a cigarette lighting port (31) is arranged on the support plate (3); A heating main board (4) is arranged in the bottom shell (1) and is electrically connected to the power module (2); a heating control circuit and a heating element (41) electrically connected thereto are provided on the heating main board (4); the heating element (41) faces the cigarette lighter port (31); and an elastic switch (42) is provided on the heating main board (4); the heating control circuit is turned on or off by opening or closing the elastic switch (42); as well as A switch cap (5) is slidably disposed on the support plate (3) and is capable of covering the cigarette lighter port (31); the switch cap (5) and the heating main board (4) are respectively located on two sides of the support plate (3); and a slider (51) for controlling the opening or closing of the elastic switch (42) is disposed on the switch cap (5).

2. The mobile power source according to claim 1, characterized in that: The elastic switch (42) comprises a contact piece (421) and a spring piece (422); the spring piece (422) and the contact piece (421) are located on the same side of the heating main board (4); one end of the spring piece (422) is connected to the heating main board (4) and the other end is suspended; the orthographic projection of the suspended part of the spring piece (422) on the heating main board (4) at least partially covers the contact piece (421).

3. The mobile power source according to claim 2, characterized in that: The suspended portion of the spring sheet (422) is arranged obliquely relative to the heating mainboard (4), and the orthographic projection of the sliding block (51) on the longitudinal center plane (8) at least partially covers the orthographic projection of the spring sheet (422) on the longitudinal center plane (8).

4. The mobile power source according to claim 3, characterized in that: The support plate (3) is provided with a first sliding groove (32), and one end of the sliding block (51) close to the support plate (3) passes through the first sliding groove (32) and is provided with a hook (511).

5. The mobile power source according to claim 1, characterized in that: The support plate (3) is provided with a first accommodating groove (33), a spring (34) is provided in the first accommodating groove (33), a side of the switch cap (5) facing the support plate (3) is provided with a base (52) and a column (53) connected thereto, the spring (34) is sleeved around the column (53), one end of the spring (34) is fixedly connected to the base (52), and the other end is fixedly connected to the support plate (3).

6. The mobile power source according to claim 1, characterized in that: A reinforcing plate (6) is provided on one side of the support plate (3) facing the switch cap (5).

7. The mobile power source according to claim 1, characterized in that: The side of the switch cap (5) facing away from the heating main board (4) is provided with an anti-slip protrusion (54).

8. The mobile power source according to claim 1, characterized in that: The power module (2) is provided with a charging port, the bottom shell (1) is provided with a charging socket (11), and the charging port is embedded in the charging socket (11).

9. The mobile power source according to claim 1, characterized in that: The inner side wall of the bottom shell (1) is provided with a mounting groove (12), and the heating mainboard (4) is inserted into the mounting groove (12).

10. The mobile power source according to claim 1, characterized in that: The power module (2) is provided with a connection terminal (21), and the heating mainboard (4) is connected to the power module (2) via the connection terminal (21).

11. The mobile power source according to any one of claims 1 to 10, characterized in that: It also comprises an upper cover (7), wherein the upper cover (7) covers the bottom shell (1) and the two are connected via a snap-fit ​​structure.

12. The mobile power source according to claim 11, characterized in that: The buckle structure comprises a clamping block (71) and a clamping slot (13) clamped thereto; the clamping block (71) is arranged on a side of the upper cover (7) facing the bottom shell (1); and the clamping slot (13) is arranged on an inner side wall of the bottom shell (1).

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