CN216015925U

CN216015925U - Power converter

Info

Publication number: CN216015925U
Application number: CN202122282595.2U
Authority: CN
Inventors: 王雷; 邓磊; 黄堪祝
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-11
Anticipated expiration: 2031-09-18

Abstract

The application provides a power converter, which comprises a shell, a conversion module, at least two connecting devices and a socket, wherein the shell is provided with an installation cavity, and the shell is provided with a wire passing hole and a socket hole which are communicated with the installation cavity; the conversion module is accommodated in the installation cavity and is provided with an output end and at least two input ends; the at least two connecting devices are matched with the at least two input ends; the socket is arranged in the socket hole and is electrically connected with the output end, and the socket is used for connecting an electric load; the conversion module is used for outputting the accessed at least two target power supplies to the socket after being connected in parallel or in series. Through setting up two at least connecting device, can make power converter connect two or more than two target power simultaneously, make power converter's socket can output several times voltage or electric current after the conversion through the conversion module, and then provide output.

Description

Power converter

Technical Field

The application relates to the technical field of power conversion equipment, in particular to a power converter.

Background

The electric appliances generally need to be normally used for a long time under rated voltage and rated current, and because the voltage standards of various countries and regions are inconsistent, some electric appliances cannot be normally used in low-voltage countries or regions. For example, domestic electric appliances in the united states are generally divided into 240V and 120V, and the electric appliances rated at 240V cannot normally operate for a long time by using a power supply of 120V. In addition, for a single energy storage device, when the rated input power of the electrical appliance is greater than the rated output power of the electrical appliance, the electrical appliance cannot be normally driven.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present application provides a power converter to enable a power supply with low output power to drive an electrical appliance with high input power.

In order to solve the above technical problem, the present application provides a power converter, including:

the shell is provided with an installation cavity, and the shell is provided with a wire passing hole and a socket hole which are communicated with the installation cavity;

the conversion module is accommodated in the installation cavity and provided with an output end and at least two input ends;

the at least two connecting devices are matched with the at least two input ends, one end of each connecting device in the at least two connecting devices is used for connecting different target power supplies, and the other end of each connecting device penetrates through the wire passing hole and then is electrically connected with the corresponding input end on the conversion module; and

the socket is arranged in the socket hole and is electrically connected with the output end, and the socket is used for connecting an electric load; the conversion module is used for outputting the accessed at least two target power supplies to the socket after being connected in parallel or in series.

According to a specific embodiment of the present application, the connection device includes a connection line and an input plug connected to the connection line, the connection line passes through the line passing hole and is connected to the input end, and the input plug can be connected to a power output port of the target power supply.

According to a specific embodiment of this application, the inside wall of crossing the line hole with one of them of the lateral wall of connecting wire is equipped with the draw-in groove, another be equipped with draw-in groove assorted snap ring, the snap ring card is located in the draw-in groove.

According to a specific embodiment of this application, power converter includes first fixed knot, the middle part of first fixed knot encircles and is located in the installation cavity at least part lateral surface of connecting wire, the both ends of first fixed knot are fixed in on the casing, so that the connecting wire is fixed in on the casing.

According to a specific embodiment of this application, the casing includes first casing and second casing, the internal surface of second casing is equipped with the spliced pole, first casing seted up with spliced pole assorted mounting hole, first casing with the second casing through wear to locate the mounting hole with first fastener in the spliced pole is connected.

According to a specific embodiment of this application, be equipped with the mounting groove on the surface of first casing, the mounting groove with the mounting hole communicates, power converter includes the protection strip, the protection strip set up in the mounting groove.

According to a specific embodiment of this application, power converter includes the soldering lug, the one end of soldering lug pass through the second fastener with the terminal end of socket is fixed to be linked to each other, makes the soldering lug with the simultaneous mechanical connection of wiring end and electric connection, the other end of soldering lug with conversion module the output welding links to each other.

According to a specific embodiment of this application, be equipped with the slot on the socket, wiring end locates in the slot, the soldering lug includes:

the fixing part is provided with a fixing hole, is inserted into the slot and is fixedly connected with the wiring end through the second fastener penetrating through the fixing hole;

the welding part is connected to one end of the fixing part, which is far away from the wiring end, extends out of the slot and is connected with the output end in a welding way;

the pair of limiting parts are symmetrically arranged on two opposite sides of the welding part, the pair of limiting parts are parallel to the end faces of the notches of the slots, and the width of the pair of limiting parts is larger than that of the slots.

According to a specific embodiment of this application, power converter includes that the second is fixed to be detained, the second is fixed detain to be set up in the both ends of socket, and be fixed in on the casing, the both ends of socket insert arrange in the second is fixed detain with between the casing.

According to a specific embodiment of this application, conversion module includes keysets and the control panel that mutually perpendicular set up, the output with the input is located on the keysets, the control panel with one of them of keysets is equipped with the contact pin, another be equipped with contact pin assorted contact pin hole, the contact pin insert establish and weld in the contact pin hole.

This application can make power converter connect two or more than two target power supply simultaneously through setting up two at least connecting device, makes power converter's socket can export several times voltage or electric current through the conversion module conversion back, and then provides output, realizes the purpose for high input power's power load power supply.

Drawings

In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic perspective view of a power converter in an embodiment of the present application;

FIG. 2 is one of the operating schematic diagrams of the power converter of FIG. 1;

FIG. 3 is a second schematic diagram of the power converter of FIG. 1;

FIG. 4 is a third schematic diagram of the power converter of FIG. 1;

FIG. 5 is a fourth schematic diagram of the power converter of FIG. 1;

fig. 6 is a schematic diagram of a connection structure of the series circuit in fig. 2;

FIG. 7 is a schematic diagram of a connection structure of the parallel circuit of FIG. 3;

fig. 8 is an exploded structure of a part of elements of the power converter in fig. 1 and a partially enlarged schematic view thereof;

FIG. 9 is an exploded view of the power converter of FIG. 1 and a partially enlarged schematic view thereof;

FIG. 10 is an enlarged schematic view of portion A of FIG. 9;

FIG. 11 is a schematic perspective view of the power converter in FIG. 1 from another perspective;

fig. 12 is a schematic perspective view of a bonding pad in an embodiment of the present application;

fig. 13 is a schematic perspective view of the power converter in fig. 1 from another perspective.

Reference numerals:

100. a power converter; 10. a first housing; 11. a mounting cavity; 12. a wire passing hole; 122. a snap ring; 14. mounting holes; 16. mounting grooves; 18. a socket hole; 20. a second housing; 22. connecting columns; 24. screw holes; 30. a conversion module; 31. an adapter plate; 311. a pin inserting hole; 32. welding the hole; 33. a control panel; 331. inserting a pin; 34. a pad; 45. a connecting device; 40. an input plug; 50. a connecting wire; 52. a card slot; 60. a protective strip; 70. a first fixing buckle; 80. a socket; 82. a fixed arm; 84. a slot; 90. soldering lugs; 91. a fixed part; 912. a card slot; 914. a gasket; 916. a second fastener; 92. welding the part; 93. a limiting part; 110. a second fixing buckle; 101. a pressing part; 102. a connecting portion.

Detailed Description

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 application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application provides a power converter 100, wherein the power converter 100 is a device for electrically connecting with a target power source and further supplying electric energy of the target power source to other electric loads connected to the power converter 100.

As shown in fig. 1 to 9, fig. 1 is a schematic perspective view of a power converter 100 in an embodiment of the present application; FIG. 2 is one of the operating schematic diagrams of the power converter of FIG. 1; FIG. 3 is a second schematic diagram of the power converter of FIG. 1; FIG. 4 is a third schematic diagram of the power converter of FIG. 1; FIG. 5 is a fourth schematic diagram of the power converter of FIG. 1; fig. 6 is a schematic diagram of a connection structure of the series circuit in fig. 2; FIG. 7 is a schematic diagram of a connection structure of the parallel circuit of FIG. 3; fig. 8 is an exploded structure of a part of elements of the power converter 100 in fig. 1 and a partially enlarged schematic diagram thereof; fig. 9 is an exploded structure of the power converter 100 in fig. 1 and a partially enlarged schematic diagram thereof. The power converter 100 comprises a housing, a conversion module 30, at least two connection means 45 and a socket 80. A mounting cavity 11 is arranged in the shell, and a wire passing hole 12 and a socket hole 18 which are communicated with the mounting cavity 11 are arranged on the shell; the conversion module 30 is disposed in the mounting cavity 11 to be protected by the first and

second housings

10 and 20. The conversion module 30 has an output end and at least two input ends, the at least two connecting devices 45 are matched with the at least two input ends, one end of each connecting device of the at least two connecting devices 45 is used for connecting different target power supplies, and the other end of each connecting device passes through the wire through hole 12 and then is electrically connected with the corresponding input end of the conversion module 30. For example, the number of the connection devices 45 is two, which are respectively a first connection device and a second connection device, the number of the input ends is matched with the number of the connection devices 45, and is also two, which are respectively a first input end and a second input end, wherein one end of the first connection device is connected with a first target power supply, and one end of the second connection device is connected with a second target power supply, so as to realize connection with different target power supplies; the other end of the first connecting device is connected with the first input end, and the other end of the second connecting device is connected with the second input end so as to realize the electrical connection with the corresponding input end. The socket 80 is disposed in the socket hole 13 and electrically connected to the output terminal, the socket 80 is used for connecting an electrical load, and the conversion module 30 is used for connecting at least two target power sources connected in parallel or in series and then outputting the target power sources to the socket 80.

By arranging at least two connecting devices 45, the power converter 100 can be simultaneously connected with two or more target power supplies, and the socket 80 of the power converter 100 can output voltage or current which is multiplied by several times after being converted by the conversion module 30, so that the output power is improved, and the purpose of supplying power for the high-power electric load is achieved. The following embodiment is described by taking two connecting means 45 as an example.

Alternatively, as shown in fig. 2, the conversion module 30 includes a series circuit, and two input terminals are connected through the series circuit to output two target power sources to an output terminal after being connected in series, so that the socket 80 outputs a double voltage. As shown in fig. 6, L in the drawing indicates live wire, N indicates neutral wire, PE indicates ground wire, and K1 and K2 indicate switches. The two input terminals are connected to the output terminal through a series circuit, so that the output terminal outputs double voltage.

Alternatively, as shown in fig. 3, the conversion module 30 includes a parallel circuit, and two input terminals of the conversion module 30 are connected by the parallel circuit to output two target power supplies to an output terminal after being connected in parallel, so that the socket 80 outputs double current. As shown in fig. 7, L in the figure indicates live wire, N indicates neutral wire, PE indicates ground wire, and K1 and K2 indicate switches. The two input ends are connected to the output end through a parallel circuit, so that the output end outputs double current.

In other embodiments, the conversion module 30 may include both series and parallel circuits. As shown in fig. 4, the conversion module 30 includes a series circuit, a parallel circuit, a first electronic control switch, a second electronic control switch, a third electronic control switch, a fourth electronic control switch, and a controller for controlling the first electronic control switch, the second electronic control switch, the third electronic control switch, and the fourth electronic control switch, two input terminals are respectively connected to the series circuit through the first electronic control switch and the second electronic control switch, two input terminals are also respectively connected to the parallel circuit through the third electronic control switch and the fourth electronic control switch, and the series circuit and the parallel circuit are also connected to an output terminal. When the controller controls the first electric control switch and the second electric control switch to be turned on and the third electric control switch and the fourth electric control switch to be turned off, the conversion module 30 is in a series mode, and the output end outputs double voltage; when the controller controls the first electric control switch and the second electric control switch to be turned off and the third electric control switch and the fourth electric control switch to be turned on, the conversion module 30 is in a parallel mode, and the output end outputs double current. When the number of the connecting devices 45 is more than two, the power converter 100 can selectively output currents or voltages with multiple times only by correspondingly increasing the number of the electrically controlled switches.

Alternatively, as shown in fig. 5, the conversion module 30 includes a series circuit and a parallel circuit, and the output terminal includes a first output terminal and a second output terminal. The two input ends are respectively connected with a series circuit, and the series circuit is connected with the first output end. The two input ends are also respectively connected with a parallel circuit, and the parallel circuit is connected with the second output end. Accordingly, the socket 80 includes a first socket connected to the first output terminal and a second socket connected to the second output terminal, so that the first socket can output double voltage and the second socket can output double current, and a user can select to use the first socket or the second socket as desired.

Further, the socket 80 disposed on the power converter 100 is configured to be electrically connected to an electrical load, and the power converter 100 may include at least two sockets 80, the converting module 30 is provided with a circuit, and the at least two sockets 80 are welded and fixed to the converting module 30 and electrically connected to the circuit disposed on the converting module 30. Wherein, the position of the shell corresponding to the socket 80 is provided with a plug hole 18, and the socket 80 is exposed through the plug hole 18 so as to be convenient for connecting the electric load.

The number of the sockets 80 may be three, for example, as shown in fig. 1, the three sockets 80 include two sockets 80 of 20A and one socket 80 of 30A, and the three sockets 80 are arranged side by side at intervals and are respectively connected to the output terminals.

Further, as shown in fig. 1 to 9, the housing may include a first housing 10 and a second housing 20, and the first housing 10 is detachably connected to the second housing 20 and encloses a mounting cavity 11 and a wire passing hole 12 communicating with the mounting cavity 11.

Further, the connecting device 45 includes a connecting line 50 and an input plug 40 connected to the connecting line 50, the connecting line 50 is inserted into the line passing hole 12 and connected to the input end, and the input plug 40 can be connected to a power outlet of the target power source.

When the connecting wire 50 is inserted into the wire passing hole 12, if the input plug 40 and the connecting wire 50 are pulled, the conversion module 30 connected to the other end of the connecting wire 50 may be forced to move in the mounting cavity 11, and the conversion module 30 and the electronic components connected thereto may be damaged.

Thus, in the present embodiment, as shown in fig. 9 and 10, fig. 10 is a partially enlarged schematic structural view in fig. 9. A snap ring 122 may be disposed on a side wall of the wire passing hole 12, and a snap groove 52 may be disposed on an outer side wall of the connection wire 50 at a position corresponding to the snap ring 122, and the snap ring 122 may be inserted into the snap groove 52.

Particularly, the snap ring 122 is arranged around the circumference of the wire passing hole 12, the clamping groove 52 is arranged around the circumference of the connecting wire 50, when the snap ring 122 is aligned and matched with the clamping groove 52, the connecting wire 50 can be positioned and limited along the extending direction of the connecting wire 50, and the connecting wire 50 is prevented from moving in the direction deviating from or approaching the conversion module 30 under the action of external force, so that the conversion module 30 can be prevented from moving under the action of external force, and the conversion module 30 and the electronic element arranged on the conversion module 30 are protected.

Alternatively, the number of the snap rings 122 may be plural, and the plural snap rings 122 are arranged at intervals along the axial direction of the wire passing hole 12. The number of the catching grooves 52 may be plural, and the plural catching grooves 52 are spaced apart in the axial direction of the connection line 50 so as to adjust the insertion depth of the connection line 50 with respect to the first housing 10 and the second housing 20.

It will be appreciated that in another embodiment, the catch 52 and the snap ring 122 may be reversed. That is, the snap ring 122 may be provided on the outer sidewall of the connection line 50, and the snap groove 52 may be provided on the sidewall of the wire passing hole 12, and the snap ring 122 may be inserted into the snap groove 52. The arrangement manner of the snap ring 122 on the outer side wall of the connecting wire 50 is the same as the arrangement manner of the snap ring 122 on the side wall of the wire passing hole 12 in the above embodiment, and the arrangement manner of the snap groove 52 on the side wall of the wire passing hole 12 is the same as the arrangement manner of the snap groove 52 on the outer side wall of the connecting wire 50 in the above embodiment, please refer to the description in the above embodiment.

If the end of the connection line 50 connected to the conversion module 30 is designed as a conventional circular line and the circular hole for the line hole 12 is adapted to the circular line, the connection line 50 is easily rotated in the line hole 12 and the conversion module 30 is dragged and moved.

Therefore, in the present embodiment, as shown in fig. 9 and 10, the cross section of the end portion of the connection line 50 connected to the conversion module 30 may be arranged to be polygonal, and the shape of the line passing hole 12 is polygonal, so that the line passing hole 12 may limit the connection line 50, and the connection line 50 is prevented from rotating in the line passing hole 12.

Alternatively, in other alternative embodiments, the cross-section of the end of the connection line 50 connected to the conversion module 30 may also be arranged in a triangle, trapezoid, D-shape, etc.

Further, when the polygonal connecting wire 50 shown in fig. 10 is used, since the thickness of the corner of the connecting wire 50 is large, the clamping groove 52 can be disposed at the polygonal corner, so as to increase the depth of the clamping groove 52, so as to increase the depth of the clamping ring 122 inserted into the clamping groove 52, and further improve the connection strength between the connecting wire 50 and the clamping ring 122.

Although the end of the connecting wire 50 can be fixed by using the wire passing hole 12, the fixing strength of the wire passing hole 12 to the connecting wire 50 is limited due to the fact that the length of the wire passing hole 12 in the axial direction of the connecting wire 50 is not too long, and the connecting wire 50 is prone to shaking relative to the wire passing hole 12.

Therefore, in this embodiment, as shown in fig. 8, the power converter 100 may include a first fixing buckle 70, two ends of the first fixing buckle 70 are fixed on the housing, and at least a portion of the outer side surface of the connection line 50 located in the mounting cavity is surrounded between the two ends, so that the connection line 50 is fixed on the housing.

The first fixing buckle 70 may be, for example, an annular metal or plastic buckle, the middle portion of the first fixing buckle 70 may abut against the connection line 50, and the two opposite ends of the first fixing buckle 70 may be connected to the second housing 20 by screws. At this time, since the wire passing hole 12 and the first fixing buckle 70 respectively fix the connection wire 50 along the extending direction of the connection wire 50, the connection wire 50 can be prevented from shaking in the wire passing hole 12.

It is understood that, in other embodiments, the first fixing fastener 70 may be disposed on the first casing 10, and the connection manner of the first fixing fastener 70 and the first casing 10 is the same as that of the second casing 20, which may be specifically configured according to the actual implementation.

In which the first housing 10 and the second housing 20 may be connected using fasteners such as screws. Alternatively, in order to improve the assembly efficiency of the first and

second housings

10 and 20, the first and

second housings

10 and 20 may be snap-connected.

The simple connection of fasteners such as screws requires frequent alignment of the assembly holes formed in the first housing 10 and the second housing 20, which makes the assembly difficult and the assembly efficiency low. The simple manner of the snap connection may easily cause the first casing 10 and the second casing 20 to be disconnected when the first casing is bumped.

Therefore, in this embodiment, the first casing 10 and the second casing 20 may be respectively provided with a buckle and a hook which are matched with each other, the inner surface of the second casing 20 is provided with a connection post 22, the connection post 22 is provided with a screw hole 24, and the first casing 10 is provided with the mounting hole 14 at a position corresponding to the connection post 22. When connecting first casing 10 and second casing 20, can pass through buckle and trip joint with second casing 20 earlier and connect, at this moment, set up mounting hole 14 on first casing 10 and set up screw hole 24 on second casing 20 and all align each other, only need wear to establish behind mounting hole 14 with first fastener, can be connected mounting hole 14 and screw hole 24 to connect first casing 10 and second casing 20. Therefore, not only the difficulty of assembling the first housing 10 and the second housing 20 can be reduced, the assembling speed of the first housing 10 and the second housing 20 can be increased, but also the connection strength of the first housing 10 and the second housing 20 can be increased.

The sealing performance of the mounting cavity 11 is damaged due to the mounting hole 14 formed in the first housing 10, and the first fastening member exposed to the outside may also affect the appearance. Therefore, in the present embodiment, as shown in fig. 9 and 11, fig. 11 is a schematic perspective view of the power converter 100 in fig. 1 from another viewing angle. A mounting groove 16 may be provided on an outer surface of the first housing 10, the mounting groove 16 being in communication with the mounting hole 14, and the power converter 100 may be provided to include a protection bar 60, the protection bar 60 being disposed in the mounting groove 16. Thus, the protection bar 60 is disposed in the mounting groove 16, can cover the mounting hole 14, improves the sealing performance of the mounting cavity 11, and can cover the screw fastener.

Further, the protection bar 60 may be made of rubber or silica gel, and the surface of the protection bar 60 exposed through the installation groove 16 may protrude from the surface of the first casing 10 where the installation groove 16 is formed, at this time, the protection bar 60 may not only increase the friction force between the power converter 100 and the ground, but also separate the first casing 10 from the ground, so as to prevent the first casing 10 from being scratched.

Conventionally, before the socket 80 and the conversion module 30 are soldered, it is generally necessary to provide pins integrally connected to the socket 80 on the socket 80 when the socket 80 is manufactured, and to solder the socket 80 to the conversion module 30 through the pins when the socket 80 is mounted. The arrangement of the pins results in a complex manufacturing process of the socket 80, and after the pins are broken, the socket 80 cannot be used continuously, resulting in waste.

Therefore, in this embodiment, the power converter 100 may include the soldering lug 90, one end of the soldering lug 90 is fixedly connected to the terminal of the socket 80 through the second fastening member 916, so that the soldering lug 90 and the terminal are mechanically and electrically connected at the same time, and the other end of the soldering lug 90 is connected to the output end of the conversion module 30 in a welding manner, so that the socket 80 can be welded to the conversion module 30 through the soldering lug 90 and electrically connected to the conversion module 30, which not only can avoid pins from being made on the socket 80, but also can prevent the socket 80 from being damaged.

Specifically, solder tabs 90 are attached to the ends of receptacles 80 facing conversion modules 30 and are solder connected to conversion modules 30 to solder connect receptacles 80 to conversion modules 30.

The soldering lug 90 is generally arranged in a straight strip shape, when the soldering lug 90 is soldered to the conversion module 30, the soldering lug 90 is prone to be inclined, which results in the socket 80 connected to the soldering lug 90 being inclined relative to the conversion module 30, which is not only inconvenient for unified production, but also easily results in the alignment failure of the socket 80 and the plug hole 18.

Therefore, in this embodiment, as shown in fig. 8 and 12, fig. 12 is a schematic perspective view of soldering lug 90 in an embodiment of the present application. The soldering lug 90 may include a fixing portion 91, a soldering portion 92, and a pair of stopper portions 93. The fixing portion 91 is connected to the socket 80, the welding portion 92 is connected to a side of the fixing portion 91 away from the socket 80, and the welding portion 92 is used for being welded to the conversion module 30 and connected to the output end in a welding manner; the pair of stopper portions 93 are symmetrically provided on opposite sides of the welding portion 92.

Specifically, as shown in fig. 12, in the present embodiment, the fixing portion 91 and the welding portion 92 are connected along the first direction X, and further, the symmetry axis of the fixing portion 91 may be overlapped with the symmetry axis of the welding portion 92, so that the two sides of the soldering lug 90 are uniformly stressed and the skew is avoided.

The fixing portion 91 and the welding portion 92 may be made of sheets, a plane of the fixing portion 91 and a plane of the welding portion 92 are coplanar, a plane of the welding portion 92 refers to a plane of a sheet for forming the welding portion 92, a plane of the fixing portion 91 refers to a plane of a sheet for forming the fixing portion 91, and a plane of the welding portion 92 and a plane of the fixing portion 91 are coplanar, specifically, the welding portion 92 and the fixing portion 91 are located on the same plane.

Both the fixing portion 91 and the welding portion 92 may be made of metal or alloy. When the fixing portion 91 and the welding portion 92 are made of the same metal or alloy, the fixing portion 91 and the welding portion 92 may be integrally formed. For example, the fixing portion 91 and the welding portion 92 connected to each other may be punched out of a metal sheet or an alloy sheet by means of punching. Alternatively, when the fixing portion 91 and the welding portion 92 are not made of the same metal or alloy, the fixing portion 91 and the welding portion 92 may be separately manufactured by pressing and then connected by welding or bonding.

Further, in order to facilitate the connection between the fixing portion 91 and the socket 80, a slot 84 may be disposed on the socket 80, the terminal of the socket 80 is disposed in the slot 84, the fixing portion 91 may be inserted into the slot 84, a fixing hole 912 is opened at a position of the fixing portion 91 corresponding to the terminal, and the fixing portion is fixedly connected to the terminal by a second fastener 916 penetrating through the fixing hole 912.

Optionally, fixing hole 912 may adopt a through hole, or fixing hole 912 may also adopt an open slot, and by setting fixing hole 912 to an open slot, compared to a manner of opening a through hole on fixing portion 91, the size of the open slot is smaller to shorten the length of fixing portion 91, so that soldering lug 90 is more miniaturized, avoiding occupying more space.

Alternatively, as shown in fig. 8, a gasket 914 may be disposed between the nut of the second fastening member 116 and the fixing portion 91, the gasket 914 is disposed on the second fastening member 116 in a penetrating manner, and when the second fastening member 116 is connected to the terminal, the gasket 914 may be abutted to clamp the fixing portion 91, so as to increase a contact area between the gasket 914 and the fixing portion 91, thereby increasing a connection acting force on the fixing portion 91 and preventing the fixing portion 91 from falling off from the socket 80.

Further, the soldering portion 92 is connected to an end of the fixing portion 91 facing away from the terminal and extends out of the slot 84 to facilitate soldering connection with the conversion module 30.

The soldering portion 92 is usually connected to the conversion module 30 by welding, since the soldering lug 90 is located between the conversion module 30 and the socket 80, the size of the conversion module 30 and the size of the socket 80 are large, and the size of the soldering lug 90 is small, so that the soldering gun cannot penetrate into the gap between the conversion module 30 and the socket 80 when the soldering gun is used for soldering.

Therefore, in the present embodiment, as shown in fig. 9, a welding hole 32 may be provided on the conversion module 30, the welding portion 92 of the soldering lug 90 penetrates through the welding hole 32 and is connected to the soldering lug 34 on the side of the conversion module 30 away from the socket 80 in a welding manner, and the pair of limiting portions 93 is parallel to the notch end face of the slot 84 to limit the welding portion 92 from falling into the slot 84.

Specifically, the size of the welding hole 32 is substantially the same as the cross-sectional size of the welding portion 92, the size of the limiting portion 93 is larger than the size of the welding hole 32, the welding portion 92 is inserted into the welding hole 32 and protrudes out of the surface of the conversion module 30 away from the socket 80, and by setting the width of the pair of limiting portions 93 larger than the width of the slots 84, the limiting portions 93 abut against the surface of the conversion module 30 with the slots 84 to position the welding portion 92, so that the welding portion 92 is prevented from being inclined.

The width of the pair of limiting portions 93 specifically refers to the maximum length of the pair of limiting portions 93 along the direction perpendicular to the inserting direction of the slot 84. The width of the slot 84 specifically refers to the length of the slot 84 along the connecting direction of the pair of limiting parts 93.

Optionally, the soldering pads 34 are disposed on the surface of the conversion module 30 facing away from the socket 80 around the soldering holes 32, so that the soldering gun can solder the conversion module 30 to the soldering portion 92 from the side of the conversion module 30 facing away from the socket 80, thereby improving the soldering efficiency and simplifying the soldering difficulty.

Further, the limiting portions 93 may be symmetrically disposed on two opposite sides of the fixing portion 91 or the soldering portion 92 along a second direction Y perpendicular to the first direction X, so that when the soldering lug 90 is inserted into the soldering hole on the converting module 20, the two limiting portions 93 symmetrically disposed on the soldering lug 90 abut against the surface of the converting module 30 to ensure that the soldering lug 90 is perpendicular to the plane of the converting module 30, and prevent the socket 80 connected to the soldering lug 90 from being tilted relative to the converting module 30.

In the present embodiment, the limiting portion 93 is connected to the connection portion of the fixing portion 91 and the welding portion 92, and is disposed symmetrically with respect to the symmetry axis of the fixing portion 91 and the welding portion 92. Alternatively, the limiting portions 93 may be connected to opposite sides of the fixing portion 91 and symmetrically disposed about the axis of symmetry of the fixing portion 91. Alternatively, the stoppers 93 may be connected to opposite sides of the welding portion 92 and symmetrically disposed about the symmetry axis of the welding portion 92.

Further, in the present embodiment, as shown in fig. 12, the fixing portion 91, the welding portion 92, and the stopper portion 93 may be provided coplanar.

Specifically, the limiting portion 93, the fixing portion 91 and the welding portion 92 are all made of metal sheets or alloy sheets, and the fixing portion 91, the welding portion 92 and the limiting portion 93 which are integrally connected can be punched in a punching manner, so that the production process of the soldering lug 90 is simplified, and the production efficiency of the soldering lug 90 is improved.

Alternatively, the stopper 93 may be disposed on both sides of the fixing portion 91 or both sides of the welding portion 92 along a third direction Z perpendicular to the first direction X. At this time, the stopper 93 is provided on both main surfaces of the fixing portion 91 or the welding portion 92. When the soldering lug 90 is inserted into the soldering hole, the limiting portion 93 is also abutted against the conversion module 30 to position the fixing portion 91 or the soldering portion 92, thereby preventing the soldering lug 90 from being inclined.

Or, the number of the limiting portions 93 may also be four, two of the limiting portions 93 are disposed on two opposite sides of the fixing portion 91 or the welding portion 92 along the second direction Y, and the other two limiting portions 93 are disposed on two opposite sides of the fixing portion 91 or the welding portion 92 along the third direction Z, so as to further improve the limiting effect of the limiting portions 93.

Because 30A socket 80 is bulky and heavy, although socket 80 can be fixed to conversion module 30 by soldering using soldering lug 90, soldering lug 90 is likely to break when shaking or impact occurs, so that connection between socket 80 and conversion module 30 fails.

Therefore, in the present embodiment, as shown in fig. 13, fig. 13 is an exploded schematic diagram of the power converter 100 in fig. 1 from another view angle. The power converter 100 includes a second fixing buckle 110, the second fixing buckle 110 is disposed at two ends of the socket 80 and fixed on the housing, and two ends of the socket 80 are inserted between the second fixing buckle 110 and the housing. Therefore, the two ends of the socket 80 can be fixed on the housing by the second fixing buckle 110, so as to improve the connection strength between the socket 80 and the housing and avoid the soldering lug 90 from breaking due to stress.

In an embodiment, as shown in fig. 13, the second fixing buckle 110 includes a pressing portion 101 and a connecting portion 102 connected in a bending manner, the connecting portion 102 is symmetrically disposed at two opposite ends of the pressing portion 101, and when the connecting portion 102 is connected to the housing, a gap exists between the pressing portion 101 and the housing. A fixing arm 82 may extend from both ends of the socket 80, and the fixing arm 82 may be inserted into a gap between the pressing portion 101 and the housing. In this manner, the fixing of the socket 80 can be achieved. By connecting the socket 80 with the housing by means of the second fixing buckle 110, damage to the socket 80 can be avoided.

Alternatively, in other embodiments, other components may be used to connect the receptacle 80 to the housing. For example, a snap may be provided on the housing and a snap ring may be provided on the receptacle 80 to snap the receptacle 80 to the housing.

Alternatively, as shown in fig. 9 and 13, the conversion module 30 may include an adapter plate 31 and a control plate 33 disposed perpendicular to each other, wherein an output terminal and an input terminal are disposed on the adapter plate 31, one of the control plate 33 and the adapter plate 31 is provided with a pin 331, and the other is provided with a pin hole 311 matching with the pin 331, and the pin 331 is inserted into and soldered in the pin hole 311, so that the adapter plate 31 and the control plate 33 are mechanically and electrically connected at the same time. By arranging the conversion module 30 to include the adapter plate 31 and the control plate 33 which are vertically connected, the space occupied by the conversion module 30 can be reduced, and further, the volume of the power converter 100 can be reduced, and the connection structure of the adapter plate 31 and the control plate 33 can be simplified by electrically connecting the adapter plate 31 and the control plate 33 in a plugging manner.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. A power converter, comprising:

2. The power converter of claim 1, wherein the connecting means comprises a connecting wire and an input plug connected to the connecting wire, the connecting wire passing through the wire passing hole and being connected to the input terminal, the input plug being connectable to a power outlet on the target power source.

3. The power converter according to claim 2, wherein one of the inner sidewall of the wire passing hole and the outer sidewall of the connecting wire is provided with a clamping groove, and the other one is provided with a clamping ring matched with the clamping groove, and the clamping ring is clamped in the clamping groove.

4. The power converter according to claim 2, wherein the power converter comprises a first fixing buckle, a middle portion of the first fixing buckle surrounds at least a portion of an outer side surface of the connecting wire in the mounting cavity, and two ends of the first fixing buckle are fixed to the housing, so that the connecting wire is fixed to the housing.

5. The power converter according to claim 1, wherein the housing comprises a first housing and a second housing, a connection column is disposed on an inner surface of the second housing, a mounting hole matched with the connection column is formed in the first housing, and the first housing and the second housing are connected by a first fastener penetrating through the mounting hole and the connection column.

6. The power converter according to claim 5, wherein a mounting groove is formed on an outer surface of the first housing, the mounting groove is communicated with the mounting hole, and the power converter comprises a protection bar, and the protection bar is disposed in the mounting groove.

7. The power converter of claim 1, wherein the power converter includes a solder tab, one end of the solder tab is fixedly connected to the terminal of the socket by a second fastener, so that the solder tab and the terminal are mechanically and electrically connected at the same time, and the other end of the solder tab is connected to the output terminal of the conversion module by soldering.

8. The power converter of claim 7, wherein a slot is provided on the socket, the terminal is provided in the slot, and the soldering lug comprises:

9. The power converter according to claim 1, wherein the power converter comprises second fixing fasteners, the second fixing fasteners are disposed at two ends of the socket and fixed on the housing, and two ends of the socket are inserted between the second fixing fasteners and the housing.

10. The power converter according to claim 1, wherein the conversion module comprises a switch board and a control board which are perpendicular to each other, the output terminal and the input terminal are arranged on the switch board, one of the control board and the switch board is provided with a pin, the other is provided with a pin hole matched with the pin, and the pin is inserted into the pin hole and welded therein.