CN219892497U

CN219892497U - Electric connection device and power supply device

Info

Publication number: CN219892497U
Application number: CN202320767051.1U
Authority: CN
Inventors: 吴东; 陈熙; 王雷; 曾庆科; 易敏
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-10-24
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses an electric connection device and a power supply device. The electric connection device comprises a substrate, an electric connection terminal and a cover body. The base plate is convexly extended with a baffle, the baffle forms a retaining wall around, and a through hole is penetrated through the part of the base plate in the retaining wall. The electric connection terminal is arranged on the substrate, and the plug interface of the electric connection terminal is exposed on the substrate and is positioned in the retaining wall. The cover body is provided with a cover main body and a connecting strip connected with the cover main body, the connecting strip penetrates through the through hole and can slide relative to the substrate, and the cover main body is configured to be in sealing connection with the retaining wall when the cover is arranged at the plug-in port of the electric connection terminal. In the electric connecting device, the retaining wall is formed by encircling the retaining plate, the part of the substrate, which is positioned in the retaining wall, is penetrated with the through hole, and the plug-in port of the electric connecting terminal is exposed on the substrate and positioned in the retaining wall, so that the risk that water liquid seeps into the through hole and the plug-in port from the outside of the retaining wall is reduced, and the waterproof performance of the electric connecting device is improved.

Description

Electric connection device and power supply device

Technical Field

The present disclosure relates to electrical devices, and particularly to an electrical connection device and a power supply device.

Background

At present, some electrical equipment is provided with a socket for connecting with a plug, the socket is generally connected with a silica gel sleeve, but gaps at the joint of the silica gel sleeve and the whole machine are easy to permeate water, so that water inflow of the electrical equipment is damaged.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an electrical connection device and a power supply device that can improve waterproof performance.

Some embodiments of the present utility model provide an electrical connection device including a substrate, an electrical connection terminal, and a cover. The base plate is convexly extended with a baffle, the baffle forms a retaining wall around, and a through hole is penetrated through the part of the base plate in the retaining wall. The electric connection terminal is arranged on the substrate, and the plug interface of the electric connection terminal is exposed on the substrate and is positioned in the retaining wall. The cover body is provided with a cover main body and a connecting strip connected with the cover main body, the connecting strip penetrates through the through hole and can slide relative to the substrate, and the cover main body is configured to be in sealing connection with the retaining wall when the cover is arranged at the plug-in port of the electric connection terminal.

In the electric connection device, the retaining wall is formed by encircling the retaining plate, the part of the substrate positioned in the retaining wall is penetrated with the through hole, and the plug-in port of the electric connection terminal is exposed on the substrate and positioned in the retaining wall, so that the risk that water liquid seeps into the through hole and the plug-in port from the outside of the retaining wall is reduced. The connecting strip penetrates through the through hole and can slide relative to the base plate, so that the cover main body can move relative to the base plate, and the cover body can be conveniently adjusted to be in a closed state or an open state. The cover main body is configured to be in sealing connection with the retaining wall when the cover is arranged at the plug-in port of the electric connection terminal, so that a sealing space isolated from the external environment is formed between the cover main body and the retaining wall, the risk that water liquid seeps into the through hole and the plug-in port from the outside of the retaining wall is further reduced, and the waterproof performance of the electric connection device is improved.

In some embodiments, the baffle includes first plate body and the second plate body that the interval set up, and first plate body encircles the through-hole and forms first barricade, and first barricade encloses to locate the through-hole week side to reduce the risk of water liquid from first barricade extravasation through-hole. The second board body surrounds the plug-in interface of the electric connection terminal to form a second retaining wall. To reduce the risk of water seeping from the second retaining wall into the interface.

In some embodiments, the second wall is located within the first wall, and the through-hole is located between the first wall and the second wall. The first barricade is used for restricting the water liquid from through-hole one side and stretches into the through-hole, and the second barricade is from the other side restriction water liquid of through-hole stretch into the through-hole to further reduce the risk that water liquid oozes into the through-hole from first barricade outward, promote electric connecting device's waterproof performance.

In some embodiments, the first retaining wall and the second retaining wall are spaced apart. The first retaining wall and the second retaining wall are used for separating the through holes and the plug interfaces to form mutually independent sealing spaces.

In some embodiments, the retaining wall is provided with an outer side facing away from the through hole, the outer side being in sealing connection with the cover body. The outer side surface is used for improving the area of sealing connection of the retaining wall and the cover main body, and further improving the sealing stability of the cover body in a closed state.

In some embodiments, a bump is disposed at an end of the connecting strip away from the main body, and the bump is configured to abut against the substrate when the cover is in the open state. So that the cover body is limited and connected to the base plate, and the risk of losing caused by the separation of the cover body and the base plate is reduced.

In some embodiments, one surface of the retaining wall facing the cover main body is abutted with the cover main body, so that the retaining wall is convenient for supporting the cover main body, and the sealing connection area of the cover main body and the substrate is convenient to improve, and further, the sealing stability of the cover body in a closed state is improved.

In some embodiments, a limiting plate is further protruded from one side of the substrate facing the cover body, the limiting plate is disposed around the retaining wall, and a clamping groove is formed between the retaining wall and the limiting plate. The clamping groove is clamped with the cover main body to improve the connection strength of the cover main body and the substrate and improve the sealing stability of the cover body in a closed state.

In some embodiments, the limiting plate is provided with a limiting surface in the protruding direction, and the limiting surface is used for contacting with the cover main body and being in sealing connection, so that the sealing connection area of the cover main body and the substrate is further improved, and the sealing stability of the cover body in a closed state is further improved.

Some embodiments of the present utility model further provide a power supply device, including a device body and an electrical connection device of any of the above embodiments, where the electrical connection device is connected to the device body.

Drawings

Fig. 1 is a schematic structural diagram of a power supply device according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of an electrical connection device according to an embodiment of the utility model.

Fig. 3 is a schematic diagram of a split structure of an electrical connection device according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a substrate in an electrical connection device according to an embodiment of the utility model.

Fig. 5 is a schematic cross-sectional view of fig. 2 along the section line A-A.

Fig. 6 is a schematic structural diagram of an electrical connection device according to another embodiment of the present utility model.

Fig. 7 is a schematic diagram of a split structure of an electrical connection device according to another embodiment of the present utility model.

Fig. 8 is a schematic cross-sectional view of fig. 6 along the section line B-B.

Fig. 9 is a schematic structural diagram of an electrical connection device according to another embodiment of the present utility model.

Fig. 10 is a schematic diagram of a split structure of an electrical connection device according to another embodiment of the present utility model.

Fig. 11 is a schematic cross-sectional view of fig. 9 along the section line C-C.

Description of the main reference signs

100: electrical connection device 200: power supply device 10: substrate board

11: baffle 111: first plate 112: second plate body

12: retaining wall 12a: outer side 12b: inner side surface

121: first retaining wall 122: second retaining wall 13: through hole

14: mounting holes 15: limiting plate 151: limiting surface

16: card slot 161: first groove wall 162: second groove wall

163: first bottom wall 17: seal groove 171: third groove wall

172: fourth groove wall 173: second bottom wall 20: electric connection terminal

21: plug interface 30: cover 31: cover main body

311: connection plate 312: connection wall 32: connecting strip

321: bump 3211: chamfer surface 33: operation part

90: device main body

Detailed Description

The following description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments.

It is noted that when one component is considered to be "connected" to another component, it may be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like are used herein for illustrative purposes only.

The term "vertical" is used to describe an ideal state between two components. In the actual production or use state, there may be an approximately vertical state between the two components. For example, in conjunction with the numerical description, perpendicular may refer to an angle between two straight lines ranging between 90++10°, perpendicular may also refer to a dihedral angle between two planes ranging between 90++10°, and perpendicular may also refer to an angle between a straight line and a plane ranging between 90++10°. The two components described as "perpendicular" may be considered "straight" or "planar" as they are considered "straight" or "planar" in that they are not strictly straight or planar, but may be substantially straight or planar in that they extend in a macroscopic manner.

The term "parallel" is used to describe an ideal state between two components. In an actual production or use state, there may be a state of approximately parallelism between the two components. For example, in connection with numerical descriptions, parallel may refer to an angle between two straight lines ranging between 180++10°, parallel may refer to a dihedral angle between two planes ranging between 180++10°, and parallel may refer to an angle between a straight line and a plane ranging between 180++10°. The two components described as "parallel" may be considered "straight" or "planar" as they are considered "straight" or "planar" in that they are not strictly straight or planar, but may be substantially straight or planar in that they extend in a macroscopic manner.

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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In view of the above, an embodiment of the present utility model provides an electrical connection device, which includes a substrate, an electrical connection terminal, and a cover. The base plate is convexly extended with a baffle, the baffle forms a retaining wall around, and a through hole is penetrated through the part of the base plate in the retaining wall. The electric connection terminal is arranged on the substrate, and the plug interface of the electric connection terminal is exposed on the substrate and is positioned in the retaining wall. The cover body is provided with a cover main body and a connecting strip connected with the cover main body, the connecting strip penetrates through the through hole and can slide relative to the substrate, and the cover main body is configured to be in sealing connection with the retaining wall when the cover is arranged at the plug-in port of the electric connection terminal.

Some embodiments of the present utility model will be described below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1, an embodiment of the present utility model provides an electrical connection device 100, which is applied to a power supply device 200, an inverter device, and other devices. Power supply device 200 may be, but is not limited to, a mobile power source, and when electrical connection device 100 is applied to power supply device 200, electrical connection device 100 may be a power outlet of power supply device 200, a socket connected to an electrical consumer, a socket connected to a photovoltaic panel, or the like.

Referring to fig. 2, an electrical connection device 100 according to an embodiment of the utility model includes a substrate 10, and an electrical connection terminal 20 and a cover 30 connected to the substrate 10. The substrate 10 is for supporting and connecting the electrical connection terminals 20 and the cover 30. The electrical connection terminals 20 are adapted for mating connection with an external plug. The cover 30 may be in a closed or open position during use. When the cover 30 is in the closed state, the cover 30 abuts against the substrate 10 and covers the electrical connection terminal 20, so as to protect the electrical connection terminal 20. When the cover 30 is in the opened state, the cover 30 is separated from the substrate 10 and exposes the electrical connection terminals 20 so that the electrical connection terminals 20 are connected with an external plug in a mating manner.

Referring to fig. 3 and 4, the substrate 10 is protruded with a baffle 11, and the baffle 11 forms a retaining wall 12 around a circle. The portion of the substrate 10 located in the retaining wall 12 is provided with a through hole 13 in a penetrating manner, the retaining wall 12 is arranged on the periphery side of the through hole 13 in a surrounding manner, so that the risk that water infiltrates into the through hole 13 from the outside of the retaining wall 12 is reduced, and the waterproof performance of the electric connection device 100 is improved.

The electrical connection terminal 20 is mounted on the substrate 10, and the insertion opening 21 of the electrical connection terminal 20 is exposed in the substrate 10 and located in the retaining wall 12, and the retaining wall 12 is enclosed on the peripheral side of the insertion opening 21, so as to reduce the risk of water from the retaining wall 12 penetrating into the insertion opening 21, and improve the waterproof performance of the electrical connection device 100. Specifically, the portion of the substrate 10 located in the retaining wall 12 is further provided with a mounting hole 14 in a penetrating manner, the electrical connection terminal 20 is located on one side of the substrate 10 facing away from the baffle 11, and the insertion port 21 is exposed in the mounting hole 14.

Optionally, the mounting hole 14 is centrally disposed in a portion of the substrate 10 located in the retaining wall 12, so as to form a reserved space between the plug-in port 21 and the retaining wall 12, and reduce the risk of interference of the retaining wall 12 with an external plug when the plug-in port 21 is cooperatively connected with the external plug.

Referring to fig. 5, the cover 30 has a cover body 31 and a connecting strip 32 connected to the cover body 31. The connecting strip 32 extends from the cover main body 31 to the through hole 13, and the connecting strip 32 penetrates through the through hole 13 and can slide relative to the base plate 10, so that the cover main body 31 can move relative to the base plate 10, and the cover body 30 can be adjusted to be in a closed state or an open state. The cover main body 31 is configured to be in sealing connection with the retaining wall 12 when the cover body 30 is in a closed state, that is, when the cover main body 31 covers the plug-in port 21 of the electric connection terminal 20, so that a sealed space isolated from the external environment is formed between the cover main body 31 and the retaining wall 12, the risk that water liquid seeps into the through hole 13 and the plug-in port 21 from the outside of the retaining wall 12 is further reduced, and the waterproof performance of the electric connection device 100 is improved.

In some embodiments, the number of the through holes 13 is plural, and the connecting strips 32 and the through holes 13 are correspondingly connected one by one, so as to improve the connection strength between the cover 30 and the substrate 10. Alternatively, the number of through holes 13 is 2, 3, 4, 5, or the like.

Optionally, the connecting strip 32 is made of a flexible material to facilitate adjusting the angle of the cover body 31 relative to the base plate 10 when the cover body 31 moves relative to the base plate 10. Or the connection bar 32 is made of a hard material so as to limit the movement of the cover body 31 in the extending direction of the connection bar 32.

In the above electrical connection device 100, the retaining wall 12 is formed by encircling the retaining wall 11, the portion of the substrate 10 located in the retaining wall 12 is provided with the through hole 13, and the insertion port 21 of the electrical connection terminal 20 is exposed from the substrate 10 and located in the retaining wall 12, so as to reduce the risk of water from the retaining wall 12 penetrating into the through hole 13 and the insertion port 21. The connecting strip 32 is arranged through the through hole 13 in a penetrating way and can slide relative to the base plate 10, so that the cover main body 31 can move relative to the base plate 10, and the cover body 30 can be conveniently adjusted to be in a closed state or an open state. The cover main body 31 is configured to be in sealing connection with the retaining wall 12 when the plug-in connector 21 of the electric connection terminal 20 is covered, so that a sealing space isolated from the external environment is formed between the cover main body 31 and the retaining wall 12, the risk that water liquid seeps into the through hole 13 and the plug-in connector 21 from the outside of the retaining wall 12 is further reduced, and the waterproof performance of the electric connection device is improved.

In some embodiments, the shape of the retaining wall 12 is contoured to the contour of the insertion opening 21 to improve the space utilization of the retaining wall 12 on the substrate 10. Alternatively, when the contour of the insertion port 21 is circular, the retaining wall 12 encloses a circular shape; when the contour of the insertion port 21 is rectangular, the retaining wall 12 encloses a rectangular shape.

With continued reference to fig. 4 and fig. 5, in some embodiments, the retaining wall 12 is provided with an outer side 12a facing away from the through hole 13, and the outer side 12a is in sealing connection with the cover main body 31, so that a sealed space isolated from the external environment is formed between the cover main body 31 and the retaining wall 12, thereby improving the waterproof performance of the electrical connection device 100. Specifically, the outer side 12a is bonded to the cover main body 31.

Alternatively, the outer side 12a is perpendicular to the surface of the substrate 10 facing the cover main body 31; or the outer side 12a is disposed obliquely with respect to the surface of the cover main body 31.

In some embodiments, the retaining wall 12 is provided with an inner side 12b facing the through hole 13. The inner side 12b and the outer side 12a are parallel to each other, and the distance between the inner side 12b and the outer side 12a is equal along the extending direction of the retaining wall 12, so that the thickness of the retaining wall 12 is uniformly distributed, and the structural strength of each part of the retaining wall 12 is conveniently balanced.

It will be appreciated that when the outer side 12a is disposed obliquely with respect to the surface of the cover main body 31, the inner side 12b may also be disposed obliquely with respect to the surface of the cover main body 31, and the retaining wall 12 may have a trapezoid cross section perpendicular to the extending direction thereof, so as to improve the stability of the retaining wall 12 structure.

In some embodiments, when the cover 30 is in the closed state, a surface of the retaining wall 12 facing the cover main body 31 abuts against the cover main body 31, so that the retaining wall 12 supports the cover main body 31, and the sealing connection area between the cover main body 31 and the substrate 10 is conveniently increased, so as to improve the sealing stability of the cover 30 in the closed state.

With continued reference to fig. 4 and fig. 5, in some embodiments, a limiting plate 15 is further protruding from a side of the substrate 10 facing the cover main body 31, the limiting plate 15 is disposed around the retaining wall 12, a clamping groove 16 is formed between the retaining wall 12 and the limiting plate 15, and the clamping groove 16 is used for clamping the cover main body 31 when the cover 30 is in a closed state, so as to improve the connection strength between the cover main body 31 and the substrate 10, and improve the sealing stability when the cover 30 is in a closed state.

Specifically, the clamping groove 16 includes a first groove wall 161 (i.e., the outer side 12 a) formed on the retaining wall 12, a second groove wall 162 formed on the limiting plate 15, and a first bottom wall 163 formed between the first groove wall 161 and the second groove wall 162. When the cover 30 is in the closed state, the first groove wall 161, the second groove wall 162 and the first bottom wall 163 are respectively in contact with and in sealing connection with the cover main body 31, so as to increase the sealing connection area of the cover main body 31 and the substrate 10, and further improve the sealing stability when the cover 30 is in the closed state.

In some embodiments, the limiting plate 15 is provided with a limiting surface 151 in the protruding direction, and the limiting surface 151 is used for contacting and sealing connection with the cover main body 31, so as to further increase the sealing connection area between the cover main body 31 and the substrate 10, and further improve the sealing stability when the cover 30 is in a closed state.

Referring to fig. 6 and 7, in some embodiments, the baffle 11 includes a first plate 111 and a second plate 112 disposed at intervals. The first plate 111 surrounds the through hole 13 to form a first retaining wall 121, and the first retaining wall 121 is arranged around the through hole 13 to reduce the risk of water from the first retaining wall 121 penetrating into the through hole 13, and improve the waterproof performance of the electrical connection device 100. The second board 112 surrounds the insertion port 21 of the electrical connection terminal 20 to form a second retaining wall 122, and the second retaining wall 122 is disposed around the insertion port 21, so as to reduce the risk of water from the second retaining wall 122 penetrating into the insertion port 21, and improve the waterproof performance of the electrical connection device 100.

In some embodiments, the second wall 122 is located within the first wall 121, and the through hole 13 is located between the first wall 121 and the second wall 122. The first retaining wall 121 is used for limiting the water from extending into the through hole 13 from one side of the through hole 13, and the second retaining wall 122 is used for limiting the water from extending into the through hole 13 from the other side of the through hole 13, so as to further reduce the risk of the water from leaking into the through hole 13 from the outside of the first retaining wall 121 and improve the waterproof performance of the electrical connection device 100.

Referring to fig. 8, specifically, a sealing groove 17 is formed between the first retaining wall 121 and the second retaining wall 122, the through hole 13 is located in the sealing groove 17, and the connecting strip 32 sequentially penetrates through the sealing groove 17 and the through hole 13. The seal groove 17 includes a third groove wall 171 formed on the first retaining wall 121, a fourth groove wall 172 formed on the second retaining wall 122, and a second bottom wall 173 formed between the third groove wall 171 and the fourth groove wall 172, and the through hole 13 is penetrating through the second bottom wall 173.

It will be appreciated that the connecting strip 32 is also slidably abutted against the third groove wall 171 and the fourth groove wall 172, so that a partial area of the sealing groove 17 adjacent to the through hole 13 remains sealed, the risk of water penetrating from the sealing groove 17 into the through hole 13 is reduced, and the waterproof performance of the electrical connection device 100 is improved.

Referring to fig. 9, 10 and 11, in some embodiments, the first retaining wall 121 and the second retaining wall 122 are spaced apart. The first retaining wall 121 and the second retaining wall 122 are used for separating the through hole 13 and the insertion port 21 to form mutually independent sealing spaces.

Referring again to fig. 3 and 5, in some embodiments, the cover body 31 protrudes with a connection plate 311, and the connection plate 311 forms a connection wall 312 around one turn. When the cover 30 is in the closed state, the connecting wall 312 is sleeved on the outer peripheral side of the retaining wall 12. The first groove wall 161, the second groove wall 162 and the first bottom wall 163 are respectively used for contacting and sealing connection with the connection wall 312. The area of the cover body 31 within the connecting wall 312 is for contact and sealing connection with the side of the retaining wall 12 facing the cover body 31. The region of the cap body 31 outside the connection wall 312 is for contact and sealing connection with the stopper surface 151.

In some embodiments, the end of the connecting strip 32 away from the main body 31 is provided with a bump 321, and the bump 321 is configured to abut against the substrate 10 when the cover 30 is in the open state, so that the cover 30 is limited to be connected to the substrate 10, and the risk of loss caused by separation of the cover 30 from the substrate 10 is reduced.

In some embodiments, the side of the bump 321 facing away from the base plate 10 is provided with a chamfer 3211 to facilitate the connection bar 32 penetrating from the side of the base plate 10 facing the cover body 31 to the side of the base plate 10 facing away from the cover body 31.

Referring again to fig. 2 and 5, in some embodiments, an operation portion 33 is further disposed on a side of the cover main body 31 facing away from the substrate 10. The operation portion 33 protrudes outward from the side of the cover main body 31, and when the cover body 30 is in a closed state, the operation portion 33 and the substrate 10 are arranged at intervals so that an operator can separate the cover main body 31 from the substrate 10 by pulling the operation portion 33.

In some embodiments, the electrical connection device 100 further includes a locking member (not shown) connected between the cover body 31 and the substrate 10, such that the cover body 31 and the substrate 10 are in locking engagement when the cover body 30 is in the closed state.

Referring again to fig. 1, an embodiment of the present utility model further provides a power supply device 200, including a device main body 90 and any one of the electrical connection devices 100 in the above embodiments, where the electrical connection device 100 is connected to the device main body 90.

In some embodiments, a portion of the housing of the device body 90 serves as the substrate 10 in order to enhance the integration of the device body 90 and the electrical connection device 100.

In the above electrical connection device 100 and the power supply device 200, the retaining wall 12 is formed by encircling the retaining wall 11, the portion of the substrate 10 located in the retaining wall 12 is provided with the through hole 13 in a penetrating manner, and the insertion port 21 of the electrical connection terminal 20 is exposed from the substrate 10 and located in the retaining wall 12, so as to reduce the risk of water from the retaining wall 12 penetrating into the through hole 13 and the insertion port 21. The connecting strip 32 is arranged through the through hole 13 in a penetrating way and can slide relative to the base plate 10, so that the cover main body 31 can move relative to the base plate 10, and the cover body 30 can be conveniently adjusted to be in a closed state or an open state. The cover main body 31 is configured to be in sealing connection with the retaining wall 12 when the plug-in connector 21 of the electric connection terminal 20 is covered, so that a sealing space isolated from the external environment is formed between the cover main body 31 and the retaining wall 12, the risk that water liquid seeps into the through hole 13 and the plug-in connector 21 from the outside of the retaining wall 12 is further reduced, and the waterproof performance of the electric connection device is improved.

In addition, those skilled in the art will recognize that the foregoing embodiments are merely illustrative of the present utility model and are not intended to be limiting, as appropriate modifications and variations of the foregoing embodiments are within the scope of the present disclosure.

Claims

1. An electrical connection device, comprising:

the base plate is provided with a baffle in a protruding mode, the baffle surrounds the baffle to form a retaining wall, and a through hole is formed in the portion, located in the retaining wall, of the base plate in a penetrating mode;

the electric connection terminal is arranged on the substrate, and a plug interface of the electric connection terminal is exposed on the substrate and is positioned in the retaining wall;

the cover body is provided with a cover main body and a connecting strip connected with the cover main body, the connecting strip penetrates through the through hole and can slide relative to the substrate, and the cover main body is configured to be in sealing connection with the retaining wall when the cover is arranged at the plug-in port of the electric connection terminal.

2. The electrical connection device of claim 1, wherein the baffle comprises a first plate and a second plate disposed in spaced relation, the first plate forming a first retaining wall around the through hole, the second plate forming a second retaining wall around the insertion opening of the electrical connection terminal.

3. The electrical connection apparatus of claim 2, wherein the second retaining wall is positioned within the first retaining wall and the through hole is positioned between the first retaining wall and the second retaining wall.

4. The electrical connection apparatus of claim 2, wherein the first wall and the second wall are spaced apart.

5. The electrical connection device of claim 1, wherein the retaining wall is provided with an outer side facing away from the through hole, the outer side being sealingly connected to the cover body.

6. The electrical connection device of claim 1, wherein an end of the connection bar remote from the cover body is provided with a tab configured to abut the substrate when the cover body is in an open state.

7. The electrical connection device of claim 1, wherein a face of the retaining wall facing the cover body abuts the cover body.

8. The electrical connection device of any one of claims 1-7, wherein a limiting plate is further protruding from a side of the substrate facing the cover body, the limiting plate is disposed around the retaining wall, a clamping groove is formed between the retaining wall and the limiting plate, and the clamping groove is clamped with the cover body.

9. The electrical connection device of claim 8, wherein the limiting plate is provided with a limiting surface in the protruding direction, the limiting surface being for contact and sealing connection with the cover body.

10. A power supply device comprising a device body and an electrical connection device according to any one of claims 1 to 9, said electrical connection device being connected to said device body.