CN112803191B

CN112803191B - Deformable power adapter

Info

Publication number: CN112803191B
Application number: CN202110386640.0A
Authority: CN
Inventors: 杨继栋; 汪洪; 覃伟丽
Original assignee: Nanchang Jiaxin Hi Tech Co ltd
Current assignee: Nanchang Jiajie Xinyuan Technology Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-06-25
Anticipated expiration: 2041-04-12
Also published as: CN112803191A

Abstract

The invention provides a deformable power adapter, which comprises a shell and at least two circuit boards, wherein the shell is provided with a plurality of first connecting holes; the shell comprises a first shell and a second shell, the second shell is connected with the first shell, and the first shell and the second shell can be close to or far away from each other so as to enable the deformable power adapter to be in an unfolded state or a folded state; at least one circuit board is fixedly arranged in each of the first shell and the second shell, and the circuit boards in the first shell and the second shell are connected through a flexible conductive piece. The deformable power adapter has an unfolded state and a folded state, when charging is needed, the deformable power adapter can be in the unfolded state, circuit boards in the shell are separated from each other, heat source concentration and mutual interference are avoided, and after charging is completed, the deformable power adapter can be in the folded state, and the requirement of miniaturization is met.

Description

Deformable power adapter

Technical Field

The invention relates to the technical field of electronic devices, in particular to a deformable power adapter.

Background

The power adapter is also called a charger, is a power supply voltage conversion device for small portable electronic equipment and electronic appliances, and is commonly used in electronic products such as mobile phones, liquid crystal displays, notebook computers and the like. In recent years, electronic products are increasingly becoming thinner and lighter to meet the consumer market, so that the power adapters adapted to the electronic products are also required to be gradually miniaturized.

Among the prior art, in order to compress the volume of power adapter, its inside adopts the three-dimensional cloth Board mode of multilayer PCB (Printed Circuit Board), and the components and parts of upper and lower layer PCB are crisscross each other, and the abundant space that has utilized, this kind by single PCB to many PCBs, by two-dimentional to three-dimensional design for the volume of adapter has obtained extremely reduction.

However, the above-mentioned plate distribution method has the following technical drawbacks: 1. the device has small space, centralized heat source, no contribution to heat dissipation, easy damage of the device after long-time work, easy heat transfer of the device with large heat productivity to the device with small heat productivity which is originally worked to cause high-temperature damage (the device with low heat productivity does not have high-temperature prevention measures because of low heat productivity, but the temperature of the device with low heat productivity is increased because of the transferred heat together with the device with high heat productivity); in order to solve the heat dissipation problem, the surface of a component is often required to be coated with an iron sheet or heat conduction silicone grease, but the quality and the cost of the charger are increased, and meanwhile, the production efficiency is also influenced by the increase of the assembling process. 2. The separation of high and low voltage components is required to avoid mutual interference, the requirements on layout are strict, the layout is not flexible enough, and isolation elements such as insulation sheets and the like are often required to be added.

Disclosure of Invention

Based on this, the present invention provides a deformable power adapter to solve the technical problem of heat source concentration of the power adapter in the background art.

According to one embodiment of the invention, the deformable power adapter comprises a shell and at least two circuit boards; the shell comprises a first shell and a second shell, the second shell is connected with the first shell, and the first shell and the second shell can approach or move away from each other, so that the deformable power adapter is in an unfolded state or a folded state;

the circuit boards in the first shell and the second shell can move along with the shells to be close to or far away from each other, and the circuit boards in the first shell and the second shell are connected through a flexible conductive piece.

Preferably, the second housing comprises a first housing part and a second housing part, the first housing part is respectively connected with the first housing part and the second housing part, and the first housing part and the second housing part can be close to or far away from each other relative to the first housing part;

wherein the circuit board is fixedly arranged in at least the second casing part among the first casing part and the second casing part.

Preferably, the second housing is slidably connected to the first housing through a guide rail and a first sliding groove, so that the first housing and the second housing can slide relatively close to or away from each other.

Preferably, the inner wall of the second housing is provided with the guide rail, the first housing is provided with the first sliding groove, and the guide rail is slidably connected with the first sliding groove.

Preferably, the guide rail includes a projection, and the projection is slidably connected to the first sliding groove.

Preferably, the guide rail is provided with a second sliding groove, and when the first housing slides relative to the second housing, the circuit board in the first housing slides in the second sliding groove.

Preferably, when the deformable power adapter is in the unfolded state, opposite ends of the first shell portion are respectively sleeved with the second shell portion and the first shell.

Preferably, when the deformable power adapter is in the deployed state, the interior of the housing communicates with the outside through the first chute.

Preferably, when the deformable power adapter is in the unfolded state and/or the folded state, the second shell and the first shell are clamped and limited through a clamping block and a clamping groove structure;

one of the fixture block and the clamping groove structure is arranged on the first shell, and the other one of the fixture block and the clamping groove structure is arranged on the second shell.

Preferably, the system further comprises a plug and a terminal interface;

one end of the plug is arranged on the first shell and connected with at least one circuit board, and the other end of the plug extends to the outside of the first shell;

the terminal interface is arranged on the second shell, is connected with at least one circuit board and is used for charging a terminal accessed to the terminal interface;

wherein a relative movement direction of the second housing and the first housing is parallel to an extension direction of the plug.

The invention has the beneficial effects that: the shell is divided into the first shell and the second shell which can move close to or away from each other, so that the power adapter can be in an unfolding state or a folding state, circuit boards are fixedly arranged in the first shell and the second shell respectively, and the circuit boards are connected through the flexible conductive pieces, so that the circuit boards can move along with the shells at the positions of the circuit boards respectively and can also be close to or away from each other.

Drawings

FIG. 1 is a block diagram of a deformable power adapter in a first embodiment of the invention in a collapsed state;

FIG. 2 is a block diagram of a first embodiment of the deformable power adapter of the present invention in an expanded state;

FIGS. 3-5 are cross-sectional block diagrams of a flexible power adapter in a first embodiment of the invention;

fig. 6 is a structural view of a first housing in the first embodiment of the invention;

fig. 7 is a structural view of a second housing in the first embodiment of the invention;

FIG. 8 is a block diagram of a second embodiment of a deformable power adapter of the present invention in a first stage of deployment;

FIG. 9 is a block diagram of a second embodiment of a deformable power adapter of the present invention in a two-stage deployment;

FIG. 10 is a cross-sectional view of a deformable power adapter in accordance with a second embodiment of the invention;

fig. 11 is a structural view of the first housing part in the second embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 1-7, a deformable power adapter according to a first embodiment of the invention is shown, which includes a housing 10, at least two circuit boards 20 disposed in the housing 10, and a plug 30 and a terminal interface 40 disposed on the housing 10. Wherein,

the housing 10 includes a first housing 11 and a second housing 12, the second housing 12 is connected to the first housing 11, and the first housing 11 and the second housing 12 can move toward or away from each other, when the first housing 11 and the second housing 12 move toward each other, the deformable power adapter is in a folded state, which can be defined as an uncharged storage state, and has a miniaturization advantage, as shown in fig. 1; when the first housing 11 and the second housing 12 are moved away from each other, the deformable power adapter is in an unfolded state, which may be defined as a charging state, as shown in fig. 2.

At least one circuit board 20 is fixedly arranged in each of the first shell 11 and the second shell 12, and the circuit boards 20 in the first shell 11 and the second shell 12 can move along with the shell in which each is arranged so as to be capable of moving towards or away from each other. In addition, in order to satisfy the approaching or separating movement between the Circuit boards 20, the Circuit boards 20 in the first and

second housings

11 and 12 are connected by a Flexible conductive member (not shown), which may be, but not limited to, an FPC (Flexible Printed Circuit), a flex cable, a conductive cable, or the like.

Specifically, one end of the plug 30 is disposed on the first housing 11 and connected to at least one circuit board 20, and the other end extends to the outside of the first housing 11, and the plug 30 is connected to a socket to access a power supply; the terminal interface 40 is disposed on the second housing 12 and connected to at least one circuit board 20, for charging a terminal connected to the terminal interface 40. Preferably, the plug 30 is connected to the circuit board 20 fixed in the first housing 11, the terminal interface 40 is connected to the circuit board 20 fixed in the second housing 12, and the plug 30 and the terminal interface 40 are distributed on two axial end faces of the housing 10. However, the present invention is not limited thereto, and in other embodiments, the positions of the plug 30 and the terminal interface 40 may be mutually different, that is, the plug 30 is disposed on the second housing 12, and the terminal interface 40 is disposed on the first housing 11.

In this embodiment, the transformable power adapter further includes switching power supply circuits, which are distributed on the respective circuit boards 20. Deformable power adapter's switching power supply circuit specifically includes high-voltage module and low pressure module, and the high-voltage module sets up on the circuit board 20 of first casing 11, and the low pressure module sets up on the circuit board 20 of second casing 12 for deformable power adapter is when being in under the charged state, and high-voltage module and low pressure module alternate segregation avoid high low pressure to form and disturb, improve the wiring flexibility ratio, needn't use isolation element such as insulating piece, reduce cost. In addition, the high-voltage module is connected with the plug 30, the low-voltage module is connected with the terminal interface 40, high-voltage electricity accessed by the plug 30 is converted into low-voltage electricity through the high-voltage module and then is conducted to the low-voltage module, and then the low-voltage electricity is accessed to the terminal through the terminal interface 40, so that the terminal is charged. Specifically, the high-voltage module is a primary part of the switching power supply circuit, and may include, for example and without limitation, a high-voltage rectification circuit, a high-voltage filter circuit, a main control circuit, a switching loop, and the like; the low-voltage module is embodied as a secondary part of the switching power supply circuit, and may include, but is not limited to, a low-voltage rectifier circuit, a low-voltage filter circuit, and the like.

In order to reduce the occupied space of the deformable power adapter in the use state, the relative movement direction of the second shell 12 and the first shell 11 is parallel to the extension direction of the plug 30, so that the deformable power adapter only extends in the longitudinal direction when being charged on a row socket or a panel, and does not occupy the use space of other chargers and charging heads beside. The relative movement of the second housing 12 and the first housing 11 may be, but not limited to, linear sliding, folding deformation, etc.

Specifically, as shown in fig. 2 to 7, in the present embodiment, the second housing 12 is slidably connected to the first housing 11 through the guide rail 13 and the first sliding groove 111, so that the first housing 11 and the second housing 12 can slide relatively close to or away from each other. When the deformable power adapter is in the unfolded state, the ends of the first housing 11 and the second housing 12 are nested. That is, the first housing 11 and the second housing 12 are sleeved with each other and can relatively slide and extend in the axial direction. More specifically, as shown in fig. 2, in a case of the present embodiment, the second housing 12 is sleeved outside the first housing 11, and the first housing 11 can be pulled out from the second housing 12 and can be pushed back into the second housing 12. In order to facilitate pulling and pushing the first housing 11, the outer end edge of the first housing 11 extends radially to form a rim portion 112, when the deformable power adapter is in the folded state, the rim portion 112 abuts against the end surface of the second housing 12, and the edge of the rim portion 112 is flush with the outer wall of the second housing 12, so that the deformable power adapter visually presents an appearance equivalent to that of a conventional integrated adapter as a whole, when charging is required, the first housing 11 can be quickly pulled out of the second housing 12 through the rim portion 112, and when charging is completed, the first housing 11 can be quickly pushed back into the second housing 12 through the rim portion 112.

In addition, in one aspect of the present embodiment, as shown in fig. 3 to 7, the guide rail 13 is disposed on the inner wall of the second housing 12, the first sliding groove 111 is specifically disposed on the wall of the first housing 11, and the guide rail 13 is slidably connected to the first sliding groove 111. Specifically, the guide rail 13 is arranged along the axial direction of the second housing 12, the guide rail 13 includes a base 131 and a protrusion 132, the protrusion 132 is specifically formed by extending from the top of the base 131, the protrusion 132 is fixed on the inner wall of the second housing 12, the first housing 11 is sleeved outside the base 131, the first sliding groove 111 penetrates through the wall of the first housing 11, the protrusion 132 penetrates through the first sliding groove 111 and is in sliding fit with the first sliding groove 111, and this structure enables the outer wall of the first housing 11 to slide closely to the inner wall of the second housing 12. The surface of the base 131 facing the circuit board of the first casing is provided with a second sliding slot 1311, as shown in fig. 4-5, when the first casing 11 slides relative to the second casing 12, the circuit board 20 in the first casing 11 slides in the second sliding slot 1311, so as to form a better sliding guiding function. In addition, the bottom of the base 131 is further provided with a fixing groove 1312, and the circuit board 20 in the second casing 12 is fixedly disposed in the fixing groove 1312. For this reason, the present embodiment integrates the sliding structure between the housings and the sliding and fixing structure of the circuit board 20 on the guide rail 13, and avoids arranging too many mechanical structures inside the housings, so that more electronic devices can be arranged with the same volume.

Meanwhile, since the first sliding groove 111 penetrates through the wall of the first housing 11, when the deformable power adapter is in the unfolded state, the inside of the housing 10 is communicated with the outside through the first sliding groove 111, and the heat dissipation effect is improved.

In order to make the sliding more stable, in the implementation, a plurality of pairs of sliding connection structures formed by the guide rails 13 and the first sliding grooves 111 may be configured, for example, one guide rail 13 is disposed at each corner of the inner wall of the second housing 12, and the shell wall of the first housing 11 is provided with one first sliding groove 111 at each position of the guide rail 13, and the guide rails 13 and the first sliding grooves 111 are in one-to-one sliding connection, so as to form a plurality of sliding fits, so that the sliding of the first housing 11 and the second housing 12 is more stable, and the service life is longer.

On the other hand, when the deformable power adapter is in the expanded state and/or the collapsed state, the second housing 12 and the first housing 11 are clamped and limited by the structures of the clamping block 113 and the clamping groove 121, one of the structures of the clamping block 113 and the clamping groove 121 is arranged on the first housing 11, and the other structure of the clamping block 113 and the clamping groove 121 is arranged on the second housing 12, so that the stability of the deformable power adapter in the expanded state and/or the collapsed state is ensured. In one case of this embodiment, please refer to fig. 7, the inner wall of the second housing 12 is provided with two slots 121 axially spaced apart, and the two slots 121 are distributed at the front end and the middle portion of the second housing 12; referring to fig. 6, two clamping blocks 113 are arranged on the outer wall of the first housing 11 at intervals along the axial direction, the two clamping blocks 113 are distributed at the front end and the rear end of the first housing 11, the distance between the two clamping grooves 121 is equal to the distance between the two clamping blocks 113, when the deformable power adapter is in a folded state, the two clamping grooves 121 are respectively clamped with the two clamping blocks 113, so that the deformable power adapter cannot be easily unfolded after being stored, and only the flange part 112 needs to be pulled with a slight force if the deformable power adapter needs to be unfolded and charged; when the deformable power adapter is in the unfolded state, the latch 113 at the rear end of the first housing 11 is latched with the latch slot 121 at the front end of the second housing 12, as shown in fig. 3, so as to ensure that the deformable power adapter cannot be easily folded after being unfolded.

In summary, the deformable power adapter in the present embodiment has at least the following advantages:

1. the deformable power adapter has an unfolded state and a folded state, when charging is needed, the deformable power adapter can be in the unfolded state, the circuit boards 20 in the shell are separated from each other at the moment, heat sources are prevented from being concentrated and interfering with each other, and after charging is completed, the deformable power adapter can be in the folded state, so that the requirement of miniaturization is met;

2. when deformable power adapter is in the expansion state, high pressure module and low pressure module alternate segregation avoid high-low pressure to form the interference, improve the cloth board flexibility ratio, needn't use isolation components such as insulating piece, reduce cost.

Example two

Referring to fig. 8-11, a deformable power adapter according to a second embodiment of the invention is shown, in which the driving power supply 10 of the present embodiment is different from the driving power supply 10 of the first embodiment in that:

the second housing 12 includes a first housing portion 12a and a second housing portion 12b, the first housing portion 12a is connected to the first housing 11 and the second housing portion 12b, the first housing portion 11 and the second housing portion 12b can be close to or away from each other relative to the first housing portion 12a, and the terminal interface 40 is disposed on an outer end surface of the second housing portion 12 b. Wherein, at least the second case portion 12b of the first case portion 12a and the second case portion 12b has a circuit board 20 fixedly disposed therein. When the deformable power adapter is in the unfolded state, the opposite ends of the first shell portion 12a are respectively sleeved with the second shell portion 12b and the first housing 11. When the second housing portion 12b or the first housing 11 is moved away from the first housing portion 12a, the deformable power adapter is in a first stage unfolded state, as shown in fig. 8; when the second shell portion 12b and the first shell 11 both move away from the first shell portion 12a, the deformable power adapter is in a second-stage unfolding state, as shown in fig. 9, so that the circuit boards 20 can be further kept away from each other when being charged, and a better heat dispersion and interference prevention effect is achieved, meanwhile, a pair of first chutes is formed in the second shell portion 12b and the first shell 11, so that the inside and outside convection can be formed in the whole length direction and the whole width direction of the power adapter, and the heat dissipation effect is enhanced.

In this embodiment, the structures of the second shell portion 12b and the first shell portion 11 are substantially the same, and the connection manner between the second shell portion 12b and the first shell portion 12a and the connection manner between the first shell portion 11 and the first shell portion 12a are substantially the same, which can refer to the connection manner between the first shell portion 11 and the second shell portion 12 in the first embodiment, and are not repeated herein.

However, the second housing part 12b and the circuit board 20 in the first housing 11 may slide in the second sliding groove 1311 of the same guide rail 13, or may slide in the second sliding groove 1311 of a different guide rail 13. For example, in some cases of the present embodiment, as shown in fig. 10, the circuit board 20 in the second casing part 12b is fixed to the top inner wall of the second casing part 12b (i.e., at the top of the housing 10) and slidingly contacts with the guide rail 13 at the top of the first casing part 12 a; the circuit board 20 in the first housing 11 is fixed to the inner wall of the bottom of the first housing 11 (i.e. at the bottom of the casing 10) and slidingly connected to the guide rails 13 at the bottom of the first housing 12a, and this offset arrangement is favorable for reducing the length of the first housing 12a, and thus the length of the entire deformable power adapter after being folded.

On the other hand, in the specific implementation, the first shell portion 12a may not have a circuit board disposed therein, or one or more circuit boards may be disposed therein according to actual requirements, so that more circuits may be integrated into the interior of the deformable power adapter, and the functions and functions of the deformable power adapter are more diversified; for example, in some alternative embodiments of the present invention, a wireless charging pad (i.e., a wireless charging device such as an induction coil integrated on the circuit board 20) may be secured to the inner wall of the first housing portion 12a, such that the power adapter can be deformed to have a wireless charging function; or a wireless communication board (e.g., a bluetooth communication module, a wifi communication module, etc.) may be fixed to an inner wall of the first case portion 12a, so that the deformable power adapter can be wirelessly controlled.

It should be noted that the apparatus provided in the second embodiment of the present invention has the same implementation principle and the same technical effect as the first embodiment, and for the sake of brief description, the corresponding contents in the first embodiment can be referred to for the non-mentioned parts of the embodiment.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A deformable power adapter is characterized by comprising a shell and at least two circuit boards; the shell comprises a first shell and a second shell, the second shell is connected with the first shell, and the first shell and the second shell can approach or move away from each other, so that the deformable power adapter is in an unfolded state or a folded state;

the circuit boards in the first shell and the second shell can move along with the shells where the circuit boards are located so as to be close to or far away from each other, the circuit boards in the first shell and the second shell are connected through a flexible conductive piece, and the second shell is in sliding connection with the first shell through a guide rail and a first sliding groove so that the first shell and the second shell can relatively slide to be close to or far away from each other.

2. A transformable power adapter as described in claim 1, wherein the second casing includes a first casing portion and a second casing portion, the first casing portion connects the first casing portion and the second casing portion, respectively, and the first casing portion and the second casing portion are each capable of moving toward or away from each other relative to the first casing portion;

3. A flexible power adapter as described in claim 1, wherein the inner wall of the second housing defines the guide track, the first housing defines the first slide slot, and the guide track is slidably coupled to the first slide slot.

4. A deformable power adaptor as claimed in claim 1 or 3, wherein the guide track includes a projection which is slidably connected with the first runner.

5. A flexible power adapter as described in claim 1 or 3, wherein said guide rail is provided with a second slide slot within which a circuit board within said first housing slides as said first housing slides relative to said second housing.

6. A flexible power adapter as described in claim 2, wherein opposing ends of said first housing portion each nest said second housing portion and said first housing when said flexible power adapter is in an unfolded state.

7. A deformable power adapter as claimed in claim 1 or 3, wherein the interior of the housing communicates with the environment through the first chute when the deformable power adapter is in the deployed state.

8. A deformable power adapter as claimed in claim 1, wherein when the deformable power adapter is in the expanded state and/or the collapsed state, the second housing and the first housing are clamped and limited by a clamping block and a clamping groove structure;

9. A transformable power adapter as described in claim 1, further comprising a plug and terminal interface;