Power converter with turnover plug

Abstract

The utility model provides a power converter with an overturning plug, which realizes good and stable contact between a converter main body and a converter plug and reduces the design difficulty of an electric contact structure, and comprises the converter main body and the converter plug which is arranged on the back surface of the converter main body in an overturning manner. The tail end of the converter plug is provided with a contact electrode extending out perpendicular to a pivot shaft of the converter plug, the converter body is provided with a guide groove, one end of the guide groove is provided with a leading-in part for the contact electrode to enter, and a power connection part in electric contact with the contact electrode is arranged in the guide groove. The contact electrode enters or leaves the guide groove along with the overturning of the converter plug; and when the contact electrode moves into the power connection part, the side surface of the contact electrode is in contact with the power connection part.

Description

Technical Field

[0001] The utility model relates to a power converter with a flip plug. Background Art

[0002] Power converters often use a flip-type plug design to facilitate the storage and carrying of the product. The existing flip-type plug is provided with a sheet-shaped electrode plate on the tail end of the plug and the converter body. When the plug is flipped to the plug-in position, the electrode plate at the tail end just contacts the electrode plate on the converter body, thereby achieving power supply. The limitations of this design are quite obvious, that is, there are strict requirements on the position and contact degree of the electrode plate. If the position of the electrode plate deviates or the contact is loose, it is very easy to cause poor contact. In addition, the contact area of ​​the electrode plate also particularly limits the current size, which undoubtedly needs to be improved. Utility Model Content

[0003] The utility model proposes a power converter with a flip plug, which realizes good and stable contact between the converter body and the converter plug, and reduces the design difficulty of the electrical contact structure, which is specifically achieved by the following technical means:

[0004] A power converter with a flip plug comprises a converter body and a converter plug flipably arranged on the back of the converter body, the tail end of the converter plug is provided with a contact electrode extending perpendicularly to its pivot axis, the converter body is provided with a guide groove, one end of the guide groove has an introduction part for the contact electrode to enter, and a power connection part for electrically contacting the contact electrode is provided in the guide groove, the contact electrode enters or leaves the guide groove as the converter plug flips, and when the contact electrode moves into the power connection part, its side surface contacts the power connection part.

[0005] In one or more embodiments of the present invention, the contact electrode includes a column electrode and a plate electrode extending on one side or both sides of the column electrode, and the column electrode is parallel to the axial direction of the electrode pin on the converter plug.

[0006] In one or more embodiments of the present invention, the power connection portion is a pair of protrusions relatively raised on the inner wall of the guide groove.

[0007] In one or more embodiments of the present invention, the guide groove is provided with an opening toward the direction of the contact electrode, and the outer side of the opening is extended outward to form the introduction portion.

[0008] In one or more embodiments of the utility model, the converter body includes a front shell, a back shell and an isolation bracket, the isolation bracket is provided with a circuit board on the side facing the front shell, and the isolation bracket is provided with the guide groove and an axle support for the pivot axis of the converter plug on the side facing the back shell.

[0009] In one or more embodiments of the present invention, a receiving groove for receiving the converter plug is provided on the outer side of the back shell, and claws for limiting the converter plug flipped and retracted in the receiving groove are provided on the side walls of the receiving groove.

[0010] In one or more embodiments of the present invention, a notch is provided at an end of the receiving slot opposite to the end of the electrode pin of the converter plug.

[0011] In one or more embodiments of the present invention, the claw is an elastic claw that elastically yields when it comes into pressure contact with the converter plug.

[0012] In one or more embodiments of the present invention, the claw is disposed on the isolation bracket, and an end thereof has a limiting portion that contacts the converter plug, and a window that exposes the claw is provided on the back shell.

[0013] In one or more embodiments of the present invention, the limiting portion has a first limiting surface that contacts the converter plug when it is flipped into the receiving slot, and a second limiting surface that contacts the converter plug after it is flipped into the receiving slot, and both the first limiting surface and the second limiting surface are inclined surfaces.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] The problem of electrical contact between the converter body and the converter plug is solved by a clamping contact structure, good and stable electrical contact is achieved, the design difficulty of the electrical contact structure is reduced, and several defects existing in the traditional electrode plate surface contact structure are overcome, such as: 1) In order to ensure electrical contact, the electrode plate must have a strict position, which increases the difficulty of designing the internal structure of the converter, and the close contact and frequent friction will make the electrode plate prone to wear; 2) When the assembly size inside the converter deviates, it is very easy to cause gaps in the electrode plate, resulting in poor contact, and it is difficult to reduce the defective rate; 3) Due to the flip contact, the contact area of ​​the electrode plate will also limit the current; and so on.

[0016] This product has a simple and ingenious structure and is easy to use. Its reasonable design greatly reduces the difficulty and cost of processing. It has good economy, technicality and practicality and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the power converter (with the plug flipped up).

[0018] Figure 2 It is a schematic diagram of the back three-dimensional structure of the power converter (with the plug flipped up).

[0019] Figure 3 Schematic diagram of the exploded structure of the power converter (with the plug flipped up).

[0020] Figure 4 It is a schematic diagram of the longitudinal cross-sectional structure of the power converter (with the plug flipped up).

[0021] Figure 5 It is a schematic diagram of the transverse cross-sectional structure of the power converter (with the plug flipped up).

[0022] Figure 6 It is a schematic diagram of the back three-dimensional structure of the power converter (plug folded state).

[0023] Figure 7 Schematic diagram of the internal structure of the power converter (plug folded state).

[0024] Figure 8 It is a schematic diagram of the longitudinal cross-sectional structure of the power converter (plug folded state).

[0025] Fig. 9 Schematic diagram of the structure of the isolation bracket. DETAILED DESCRIPTION

[0026] Combine the following Figures 1 to 9 Further description of this application scheme:

[0027] A power converter with a flip plug comprises a converter body 1 and a converter plug 2 flipably arranged on the back of the converter body 1, wherein the tail end of the converter plug 2 is provided with a contact electrode 22 extending perpendicularly to its pivot axis 21, and the converter body 1 is provided with a guide groove 11, one end of the guide groove 11 has an introduction portion 111 for the contact electrode 22 to enter, and a power connection portion 112 for electrically contacting the contact electrode 22 is provided in the guide groove 11, and the contact electrode 22 enters or leaves the guide groove 11 as the converter plug 2 flips, and when the contact electrode 22 moves into the power connection portion 112, its side surface contacts the power connection portion 112.

[0028] This product adopts a clamping contact structure in which the guide groove 11 cooperates with the contact electrode 22, and uses the groove wall of the guide groove 11 to provide an electrical contact basis. The height of the guide groove 11 and the extension length of the contact electrode 22 are matched to accommodate the dimensional deviation that may occur when the converter plug 2 is assembled with the converter body 1, reducing the dimensional requirements of the internal structure, greatly reducing the processing difficulty and cost. In particular, it overcomes the problems of poor electrical contact caused by electrode plate wear or position deviation that are difficult to solve in the traditional surface contact structure using electrode sheets.

[0029] Specifically, the converter body 1 includes a front shell 101, a back shell 102 and an isolation bracket 103. The isolation bracket 103 is provided with a circuit board 3 on the side facing the front shell 101, and the isolation bracket 103 is provided with the guide groove 11 and a shaft support 104 for matching the pivot shaft 23 of the converter plug 2 on the side facing the back shell 102. A receiving groove 105 for receiving the converter plug 2 is provided on the outer side of the back shell 102, and a claw 106 for limiting the converter plug 2 flipped and retracted in the receiving groove 105 is provided on the side wall of the receiving groove 105. The clamping claw 106 is an elastic clamping claw, which includes a spring plate 106a provided on the isolation bracket 103 and a limiting portion 106b located at the end of the spring plate, the limiting portion 106b has a first limiting surface 106c that contacts the converter plug 2 when it is flipped into the receiving groove 105, and a second limiting surface 106d that contacts the converter plug 2 after it is flipped into the receiving groove 105, the first limiting surface 106c and the second limiting surface 106d are both inclined surfaces, and a window 107 is provided on the back shell 102 to expose the clamping claw 106. During the flipping process, the clamping claw 106 elastically gives way when it is in pressure contact with the converter plug 2 to allow the converter plug 2 to pass.

[0030] A notch 108 is provided at one end of the receiving groove 105 opposite to the end of the electrode plug 23 of the converter plug 2 , so as to facilitate flipping the converter plug 2 out of the receiving groove 105 by applying force to the electrode plug 23 .

[0031] The contact electrode 22 is connected to the electrode plug 23 inside the converter plug 2. The contact electrode 22 includes a column electrode 221 and plate electrodes 222 extending on both sides of the column electrode 221. The column electrode 221 is parallel to the axial direction of the electrode plug 23 on the converter plug 2. When the column electrode 221 is flipped to the power connection part 112 of the guide groove 11, the electrode plug 23 is also flipped to the plugging position accordingly. The guide groove 11 is provided with an opening 110 toward the direction of the contact electrode 22, and the outer side 110a of the opening 110 is extended outward to form the introduction part 111. The outward-expanding introduction part 111 is conducive to overcoming the slight deviation during the plug assembly so that the contact electrode 22 can smoothly enter the guide groove 11.

[0032] The power connection part 112 is a pair of relatively raised protrusions 112a on the inner wall of the guide groove, and the column electrode 221 is clamped by the pair of protrusions 112a. The surface of the protrusion 112a is provided with a copper sheet for contacting with the metal column electrode 221 for electrical conduction. The copper sheet is connected to the copper sleeve 31 on the circuit board 3 to achieve electrical conduction. The copper sheet can be the part of the copper sleeve 31 extending into the guide groove 11, or the copper sheet and the isolation bracket 103 are integrally formed, and a terminal is left at the lower end of the isolation bracket 103 to connect the copper sleeve 31. Among them, the plug contact area is the surface area of ​​the column electrode 221 that contacts the protrusions 112a on both sides, which can be designed by the length of the column electrode 221 / the depth of the guide groove 11, and is suitable for passing large currents to meet the design requirements of the product.

[0033] As the converter plug 2 flips over, the plate electrode 222 approaches and contacts the introduction portion 111, and then enters the guide groove 11 from the opening 110, and the plate electrode 222 cooperates with the groove wall of the guide groove 11 to limit the moving direction. The convex body is also provided with an arc surface facing the introduction portion 111 to facilitate the column electrode 221 to enter the clamping area, and finally the column electrode 221 falls into the power connection portion 112. The plate electrode 222 also plays a role in strengthening the contact electrode 22 as a whole, so as to prevent the single column electrode 221 from being bent or broken when it is in interference contact with the power connection portion 112.

[0034] The above-mentioned preferred implementation modes should be regarded as illustrative examples of the implementation modes of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on this scheme should be regarded as within the scope of protection of this patent.

Claims

1. A power converter with a flip plug, comprising a converter body and a converter plug flipably arranged on the back of the converter body, characterized in that: The tail end of the converter plug is provided with a contact electrode extending perpendicularly to its pivot axis, and the converter body is provided with a guide groove, one end of the guide groove has an introduction portion for the contact electrode to enter, and a power connection portion for electrically contacting the contact electrode is provided in the guide groove. The contact electrode enters or leaves the guide groove as the converter plug is flipped, and when the contact electrode moves into the power connection portion, its side surface contacts the power connection portion.

2. The power converter with a flip plug according to claim 1, characterized in that: The contact electrode comprises a column electrode and plate electrodes extending on one side or both sides of the column electrode. The column electrode is parallel to the axial direction of the electrode pin on the converter plug.

3. The power converter with a flip plug according to claim 2, characterized in that: The power connection part is a pair of convex bodies relatively raised on the inner wall of the guide groove.

4. The power converter with a flip plug according to claim 3, characterized in that: The guide groove is provided with an opening toward the direction of the contact electrode, and the outer side of the opening extends outwardly to form the introduction portion.

5. The power converter with a flip plug according to claim 4, characterized in that: The converter body comprises a front shell, a back shell and an isolation bracket, wherein a circuit board is mounted on the isolation bracket facing the front shell, and the guide groove and an axle support for the pivot shaft of the converter plug are arranged on the isolation bracket facing the back shell.

6. The power converter with a flip plug according to claim 5, characterized in that: The outer side of the back shell is provided with a receiving groove for receiving the converter plug, and the side wall of the receiving groove is provided with a clamping claw for limiting the converter plug flipped and retracted in the receiving groove.

7. The power converter with a flip plug according to claim 6, characterized in that: The receiving groove is provided with a notch at one end opposite to the electrode plug end of the converter plug.

8. The power converter with a flip plug according to claim 7, characterized in that: The clamping claw is an elastic clamping claw, which elastically yields when it comes into pressure contact with the converter plug.

9. The power converter with a flip plug according to claim 8, characterized in that: The clamping claw is arranged on the isolation bracket, and the end of the clamping claw has a limiting portion in contact with the converter plug, and the back shell is provided with a window for exposing the clamping claw.

10. The power converter with a flip plug according to claim 9, characterized in that: The limiting portion comprises a first limiting surface which contacts the converter plug when the converter plug is flipped into the receiving groove, and a second limiting surface which contacts the converter plug after the converter plug is flipped into the receiving groove, and both the first limiting surface and the second limiting surface are inclined surfaces.

Images