Ultrasonic fast-assembly mini charger

Abstract

The utility model discloses an ultrasonic fast-assembly mini charger, which comprises a middle shell, an electronic component, a front shell and a rear cover, the middle shell is a through cavity, the front end part of the middle shell is provided with a concave step groove, the rear end of the middle shell is provided with a positioning bracket extending inwards, and the positioning bracket is provided with a positioning groove. A positioning groove is formed between the positioning support and the rear end of the middle shell in a surrounding mode. The middle shell extends along the length direction of the middle shell to form a guide groove; the electronic component comprises a main PCB, the front shell is provided with a step part matched with the step groove, the step part extends into the step groove and enables the front shell to be relatively flush with the front end of the middle shell, and the front shell is provided with a pin; the outer wall of the step portion is convexly provided with a limiting portion extending into the guide groove, the limiting portion extends into the guide groove and abuts against the rear end of the main PCB, the front end of the main PCB abuts against the positioning support, the thickness of the rear cover is matched with the thickness of the positioning groove, the rear cover is clamped into the positioning groove, and the wall face of the rear cover is flush with the end wall of the middle shell.

Description

Technical Field

[0001] This utility model relates to the field of chargers, and in particular to an ultrasonic quick-connect mini charger. Background Technology

[0002] With the development of electronic devices, the demand for chargers has also increased. However, in the actual production process, different plug structures, such as Chinese standard, American standard or British standard plugs, have different structures, so their actual structures will also change accordingly.

[0003] The current practice is to use one type of charger with one type of casing to meet different needs.

[0004] For example, Chinese patent 201620124961.8 uses a combination of a front shell, a middle shell, and a bottom shell to achieve the assembly of the shells. This is quite complicated in the actual assembly of electronic components, and therefore the production cost will also increase accordingly (e.g., the cost of mold opening). Utility Model Content

[0005] The main purpose of this invention is to propose an ultrasonic quick-assembly mini charger, which aims to improve the existing charger housing structure, making it easier to assemble electronic components and the housing, thereby effectively improving production efficiency and reducing production costs.

[0006] To achieve the above objectives, this utility model proposes an ultrasonic quick-connect mini charger, comprising:

[0007] The middle shell is a through cavity. The front end of the middle shell is provided with a concave stepped groove, and the rear end of the middle shell is provided with an inwardly extending positioning bracket. The positioning bracket and the rear end of the middle shell are provided with a gap to form a positioning groove.

[0008] The middle shell has guide grooves extending along its length;

[0009] An electronic component, comprising a main PCB board, wherein a secondary PCB board is provided in the lateral direction of the main PCB board, and the secondary PCB board is provided with multiple connectors;

[0010] The front shell has a stepped portion that mates with a stepped groove. The stepped portion extends into the stepped groove and makes the front end of the front shell flush with the front end of the middle shell. The front shell has pins.

[0011] The outer wall of the stepped portion is provided with a limiting part that extends into the guide groove. The limiting part extends into the guide groove and abuts against the rear end of the main PCB board, and the front end of the main PCB board abuts against the positioning bracket.

[0012] The back cover has a thickness that matches the thickness of the positioning groove. The back cover is inserted into the positioning groove and its wall surface is flush with the end wall of the middle shell.

[0013] The stepped section and stepped groove, as well as the rear cover and positioning groove, are fixed together by ultrasonic welding.

[0014] In actual assembly, the pins are electrically connected to the main PCB board via cables or springs. Therefore, when assembly is required, the main PCB board is inserted into the guide groove, and then the PCB board is fixed by the abutment of the positioning bracket and the front shell.

[0015] The guide groove and the limiting part serve both to prevent mistakes and to position the device.

[0016] The front shell and the middle shell can be fixed by ultrasonic welding first, and then the rear cover and the middle shell can be fixed by ultrasonic welding after positioning them together.

[0017] The combination of the stepped section and stepped groove, as well as the outer edge of the rear cover and the positioning groove, can achieve a large contact area, thereby ensuring the stability of ultrasonic welding. Attached Figure Description

[0018] Figure 1 This is a 3D schematic diagram of the Chinese standard pin.

[0019] Figure 2 For the explosion of the Chinese standard plug Figure 1 ;

[0020] Figure 3 For the explosion of the Chinese standard plug Figure 2 ;

[0021] Figure 4 A 3D diagram of the UK standard pins;

[0022] Figure 5 Explosion due to British regulations Figure 1 ;

[0023] Figure 6 Explosion due to British regulations Figure 2 ;

[0024] Figure 7 A 3D diagram of the US standard pinout;

[0025] Figure 8 Explosion due to US intervention Figure 1 ;

[0026] Figure 9 Explosion due to US intervention Figure 2 .

[0027] In the picture,

[0028] 1 is the middle shell, 10 is the limiting part, 11 is the stepped groove, 12 is the positioning bracket, 120 is the positioning groove, and 13 is the guide groove.

[0029] 2 represents electronic components, 21 represents the main PCB board, and 22 represents the secondary PCB board.

[0030] 3 is the front shell, 30 is the stepped section, 31 is the Chinese standard pin, 32 is the British standard pin, 33 is the American standard pin, 34 is the support platform, and 35 is the boss.

[0031] 4 is the back cover.

[0032] 51 is the first convex ridge, and 52 is the second convex ridge.

[0033] 6 represents raised and recessed texture.

[0034] 71 is a guide groove, and 72 is a guide post.

[0035] 81 is the card slot, and 82 is the card post.

[0036] 9 is the plug-in post, 91 is the plug-in hole, and 92 is the chamfer. Detailed Implementation

[0037] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0038] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0040] like Figures 1 to 9 As shown, an ultrasonic quick-connect mini charger includes:

[0041] The middle shell 1 is a through cavity. The front end of the middle shell 1 is provided with a concave stepped groove 11, and the rear end of the middle shell 1 is provided with an inwardly extending positioning bracket 12. The positioning bracket 12 and the rear end of the middle shell 1 are provided with a gap and form a positioning groove 120.

[0042] The middle shell 1 has a guide groove 13 extending along its length;

[0043] Electronic component 2, the electronic component 2 includes a main PCB board 21, the main PCB board 21 is provided with a sub-PCB board 22 in the lateral direction, and the sub-PCB board 22 is provided with multiple connectors;

[0044] The front shell 3 is provided with a stepped portion 30 that mates with the stepped groove 11. The stepped portion 30 extends into the stepped groove 11 and makes the front shell 3 and the front end of the middle shell 1 relatively flush. The front shell 3 is provided with a pin.

[0045] The outer wall of the stepped portion 30 is provided with a limiting portion 10 that extends into the guide groove 13. The limiting portion extends into the guide groove 13 and abuts against the rear end of the main PCB board 21, and the front end of the main PCB board 21 abuts against the positioning bracket 12.

[0046] The thickness of the rear cover 4 is adapted to the thickness of the positioning groove 120. The rear cover 4 is inserted into the positioning groove 120 and the wall surface of the rear cover 4 is flush with the end wall of the middle shell 1.

[0047] The stepped portion 30 and stepped groove 11, as well as the rear cover 4 and positioning groove 120, are fixed together by ultrasonic welding.

[0048] In actual assembly, the pins are electrically connected to the main PCB board 21 via cables or springs. Therefore, when assembly is required, the main PCB board 21 is inserted into the guide groove 13, and the PCB board is fixed by the abutment of the positioning bracket 12 and the front shell 3.

[0049] The guide groove 13 and the limiting part serve both to prevent mistaken identity and to position the device.

[0050] The front shell 3 and the middle shell 1 can be fixed by ultrasonic welding first, and then the rear cover 4 and the middle shell 1 can be fixed by ultrasonic welding after positioning each other.

[0051] The combination of the stepped portion 30, the stepped groove 11, the outer edge of the rear cover 4, and the positioning groove 120 can achieve a large contact area, thereby ensuring the stability of ultrasonic welding.

[0052] Specifically, when the plug is a standard plug 31, the end wall of the front shell 3 is flush with the front wall of the middle shell 1, the standard plug 31 is pivotally mounted, and the middle shell 1 is provided with a relief groove that cooperates with the plug, thereby making the overall size of the charger smaller.

[0053] Specifically, the plug is a British standard plug 32, the front shell 3 is provided with an outwardly extending support platform 34, the outer diameter of the support platform 34 is larger than the outer diameter of the middle shell 1, and the stepped portion 30 is provided on the lower wall of the support platform 34. Therefore, compared with the Chinese standard plug 31, its installation is the same, the difference being the design of the standard support platform 34 of the British standard plug 32.

[0054] Specifically, the pin is a US standard pin 33, the front shell 3 has a boss 35 extending from the middle, and the stepped part 30 is provided on the lower wall of the front shell 3. Compared with the US standard pin 33, it is basically similar in shape and installation to the Chinese standard pin 31. The difference is that the US standard pin 33 has a standard boss 35 design, so installation and production are simpler.

[0055] In actual assembly and production, the Chinese standard pin 31, the American standard pin 33 and the European standard pin are the same except for the position of the front shell 3. The electronic component 2 can be adjusted or changed according to the actual design, or controlled through the internal circuit.

[0056] Therefore, production costs are effectively reduced. Of course, to further save costs, the 31-pin of the standard can also be set to a non-swinging structure.

[0057] Specifically, the outer peripheral wall of the stepped portion 30 is provided with spaced first protruding ridges 51, which are trapezoidal or triangular in shape.

[0058] In this embodiment of the present invention, the front wall of the rear cover 4 is provided with second protruding ridges 52 spaced apart. The second protruding ridges 52 are trapezoidal or triangular in shape. The arrangement of the first protruding ridges 51 and the second protruding ridges 52 can effectively improve the stability during ultrasonic welding and play an adhesive role.

[0059] Specifically, the middle shell 1 is rectangular in shape, and the opposite side walls of the middle shell 1 are provided with concave and convex textures 6. The concave and convex textures 6 are diamond-shaped, and the diamond texture can effectively improve the recognition of the charger.

[0060] In this embodiment of the utility model, the positioning bracket 12 is provided with a guide groove 71, and the rear cover 4 is provided with a guide post 72 that cooperates with the guide groove 71, thereby facilitating the installation of the rear cover 4.

[0061] Specifically, the positioning bracket 12 is provided with spaced slots 81, and the rear cover 4 is provided with a locking post 82 that cooperates with the slots 81. The locking post 82 extends into the slots 81. The rear cover 4 is provided with an insertion hole. Therefore, it is necessary to provide a guide post 72 and a locking post 82 to improve the stability of insertion and removal.

[0062] In this embodiment of the utility model, the rear cover 4 is provided with a plug post 9, which extends forward from the rear cover 4 and has a plug hole 91 that mates with the connector.

[0063] Specifically, the inner section of the plug post is provided with an enlarged positioning groove 120, and the connector extends into the positioning groove 120. The wall of the positioning groove 120 is chamfered at 92 degrees, thereby achieving the positioning of the connector. At the same time, it can also meet the stability of repeated insertion and removal, avoid the problem that existing connectors are prone to displacement during insertion and removal, and further improve the accuracy of use.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ultrasonic quick-mount mini-charger, characterized in that, The utility model relates to a kind of electronic product, including: Middle shell, the middle shell is the cavity of being arranged through, the front end of the middle shell is equipped with recessed step groove, the rear end of the middle shell is equipped with the positioning support extending inwards, and the positioning support is equipped with interval between the rear end of middle shell and is enclosed into positioning groove; The middle shell is equipped with guide groove along its length direction; Electronic element, the electronic element includes main PCB board, the transverse direction of the main PCB board is equipped with vice PCB board, and the vice PCB board is equipped with multiple joints; Front shell, front shell is equipped with with step groove The step part of cooperation, the step part is in step groove And make front shell with the front end of middle shell It is relatively flush, and the front shell is equipped with plug pin; The outer wall of the step part is protruded with limit part extending into guide groove, and the limit part is in guide groove And with the rear end of main PCB board It is abutted and make the front end of the main PCB board With positioning support It is abutted; Rear cover, the thickness of the rear cover is adapted to the thickness of positioning groove, and the rear cover is inserted into positioning groove And make the wall surface of rear cover With the end wall of middle shell It is flush; The step part and step groove And rear cover and positioning groove are fixed by ultrasonic welding.

2. The ultrasonic quick-mount mini-charger of claim 1, wherein: When the plug pin is middle rule plug pin, the end wall of the front shell is flush with the front wall of the middle shell, and the middle rule plug pin is pivotally arranged, and the middle shell is provided with avoiding groove matched with the plug pin.

3. The ultrasonic quick-mount mini-charger of claim 1, wherein: When the plug pin is British rule plug pin, the front shell is provided with outwardly extending support table, the outer diameter of the support table is greater than the outer diameter of the middle shell, and the step part is arranged on the lower wall of the support table.

4. The ultrasonic quick-mount mini-charger of claim 1, wherein: When the plug pin is American rule plug pin, the middle part of the front shell extends convex table, and the step part is arranged on the lower wall of the front shell.

5. The ultrasonic quick-mount mini-charger of claim 1, wherein: The outer peripheral wall of the step part is provided with first convex edges distributed at intervals, and the first convex edges are in trapezoidal shape or triangular shape. The front wall of the rear cover is provided with second convex edges distributed at intervals, and the second convex edges are in trapezoidal shape or triangular shape.

6. The ultrasonic quick-mount mini-charger of claim 1, wherein: The middle shell is in rectangular shape, and the opposite two side walls of the middle shell are provided with concave-convex patterns, and the concave-convex patterns are in diamond pattern.

7. The ultrasonic quick-mount mini-charger of claim 1, wherein: The positioning support is provided with guide groove, and the rear cover is provided with guide column matched with the guide groove.

8. The ultrasonic quick-mount mini-charger of claim 7, wherein: The positioning support is provided with clamping grooves arranged at intervals, and the rear cover is provided with clamping columns matched with the clamping grooves, and the clamping columns are inserted into the clamping grooves.

9. The ultrasonic quick-mount mini-charger of claim 8, wherein: The rear cover is provided with plug-in column, the plug-in column is arranged from the rear cover to the front, and the plug-in column is provided with plug-in hole matched with the joint.

10. The ultrasonic quick-mount mini-charger of claim 9, wherein: The inner side section of the plug-in column is provided with positioning groove with diameter expansion, the joint is inserted into the positioning groove, and the wall surface of the positioning groove is chamfered.

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