Charging seat with secondary protection for charging port
By designing a dual-protection structure with an outer protective cover and an inner protective part on the charging base, and using a slider and damping spring to realize the automatic opening and closing of the charging port, the risk of electric shock caused by exposed charging ports is solved, and safety and ease of operation are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU RECODEAL INTERCONNECT SYST
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-14
AI Technical Summary
When the charging port is not in use, the power terminals of the existing charging dock are exposed in the field of vision, posing a risk of electric shock due to misoperation. In addition, the existing protective cover has a complex structure and is inconvenient to operate.
A charging dock was designed with a dual protection structure consisting of an outer protective cover and an inner protective section. The inner protective cover automatically opens when the charging gun is inserted, through the cooperation of a slider and a damping spring, to prevent the power terminals from being exposed and to achieve secondary protection during insertion and removal.
It achieves double protection for the charging port, avoiding the risk of electric shock due to accidental operation. It has a simple structure, is easy to operate, has high safety performance, and is compact in overall design.
Smart Images

Figure CN224502426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging docks, and in particular to a charging dock with secondary protection for the charging port. Background Technology
[0002] Charging docks are widely used in the new energy industry, such as charging docks for new energy vehicles or charging piles. These charging docks are high-voltage, high-current components. When the charging dock is not in use, its charging port needs to be sealed to prevent electric shock. Currently, an external protective cover is installed on the charging interface end. The cover is opened when charging. The drawback is that when the cover is open, before the charging gun is inserted into the charging dock, the power terminal is exposed to the field of vision, which poses a risk of electric shock due to misoperation or contact between metal tools and the power terminal. Utility Model Content
[0003] To address one or more of the aforementioned problems, this utility model provides a charging dock with secondary protection for the charging port.
[0004] According to one aspect of the present invention, a charging dock with secondary protection for the charging port includes: a charging dock body, a panel, an outer protective cover, and an inner protective part.
[0005] The front shell of the charging dock has multiple terminals built in and a front panel is mounted on it.
[0006] The charging gun insertion port in the middle of the panel is located in front of the terminals;
[0007] The outer protective cover can be opened and installed on the front of the panel to protect the charging port.
[0008] The inner protective section includes two inner protective covers and a slider;
[0009] After the upper ends of the two inner protective covers are symmetrically rotated to connect the panel, the two inner protective covers can seal the power terminals on both sides of the insertion port and provide secondary protection to the power terminals directly behind. The inner protective covers are provided with pull grooves with elongated holes.
[0010] The slider includes a reversing beam and at least one movable arm connected to the front side of the reversing beam. The reversing beam is located behind two inner protective covers and its front side has two pull shafts slidably connected to two pull grooves. The movable arm protrudes forward from the middle of the two inner protective covers and is slidably connected to the back of the panel. A vertical damping spring is provided between the upper end of the movable arm and the panel, and its lower end front side has a rearwardly inclined contact surface.
[0011] The charging gun's contact with or separation from the contact surface causes the slider to move up or down, allowing the inner protective cover to rotate and expose or close the power terminals, thus achieving secondary protection of the charging port.
[0012] In some embodiments, the rear end face of the panel is integrally vertically connected to two fixed shafts, which are located above the insertion port and are symmetrical about the vertical center line of the insertion port; the first shaft hole on the inner side of the upper end of the inner protective cover is rotatably sleeved with the fixed shaft.
[0013] In some embodiments, the pull groove of the inner protective cover is a transverse elongated through hole located above and outside the first shaft hole. Two cylindrical pull shafts are integrally and vertically connected at both ends of the front side of the reversing beam. The pull shafts and the pull groove are sleeved with the same diameter or with a small gap.
[0014] In some implementations, four power terminals are symmetrically distributed laterally on both sides of the lower end of the front shell of the charging base body. In their natural state, the arc-shaped base plates of the two inner protective covers face the four power terminals.
[0015] In some implementations, the upper limit end integrally formed on the rear end face of the panel is located between the two fixed axes of the panel, and the upper end of the moving arm is integrally formed with a vertical lower limit axis, and the two ends of the damping spring are respectively connected to the upper limit end and the lower limit axis.
[0016] In some embodiments, the panel is also provided with a vertical spring groove, the upper limit end of which is a vertical blind hole in the upper end wall of the spring groove; the movable arm is vertically slidably connected to the spring groove with equal diameter, the damping spring gap is set in the spring groove, the upper end of the damping spring passes through the vertical blind hole and the lower end is sleeved with the lower limit shaft.
[0017] In some embodiments, a low-position baffle is integrally and vertically connected to the upper rear edge of the insertion port, and a vertical end plate that is vertically connected to the low-position baffle and the lower surface of the reversing beam is integrally and vertically connected to the lower end plate.
[0018] In some implementations, there are two damping springs; the rear end face of the panel is symmetrically provided with two sets of upper limit ends and spring grooves, and the lower baffle is located between the two spring grooves; the front side of the reversing beam is integrally and symmetrically connected to the upper ends of the two moving arms.
[0019] In some embodiments, the inner protective part also includes a rear positioning plate, and the edge of the rear positioning plate and a plurality of screw hole blocks on the rear side of the panel are connected by threaded parts. The space surrounded by the rear positioning plate and the panel is the movable area of the inner protective cover.
[0020] In some embodiments, the rear positioning plate is provided with a first through hole that mates with the insertion port, and the middle of the upper edge of the middle through hole is provided with a clearance opening that mates with the low baffle of the panel, and the top blocks on both sides of the clearance opening fit against the rear surface of the moving arm.
[0021] This charging dock with secondary protection for the charging port features an external protective cover and an internal protective section for double protection. Its advantages are: First, the charging dock's insertion port has a double protection mechanism. When not in use, the seal is better. When in use, with the external protective cover open but the charging gun not yet inserted, the power terminals are covered by the internal protective cover and not exposed. Only when the charging gun enters the insertion port does the internal protective cover gradually open until the charging gun's terminals are fully inserted. Therefore, the power terminals are not exposed during the entire insertion and removal process. Therefore, it avoids the risk of electric shock caused by misoperation or contact between metal tools and power terminals, resulting in high safety performance; secondly, the inner protective part opens passively when the charging gun is inserted, without the need for a separate inner cover opening action, making operation simple, without redundant drive or power components, and the overall structure is simple; thirdly, the inner protective part adopts a linkage structure formed by a slider and the inner protective cover, which is quick and reliable to open and close, and is equipped with a vertical damping spring for automatic reset protection; fourthly, the inner protective cover of the device is located directly in front of the power terminal, and the other components are placed on top, resulting in a compact overall structure. Attached Figure Description
[0022] Figure 1 This is a front view schematic diagram of a charging base with secondary protection for the charging port according to one embodiment of the present utility model.
[0023] Figure 2 for Figure 1 The figure shows a three-dimensional exploded view of a charging dock with secondary protection for the charging port.
[0024] Figure 3 for Figure 2 A three-dimensional schematic diagram of the inner protective part shown;
[0025] Figure 4 for Figure 3 A three-dimensional schematic diagram of the slider shown;
[0026] Figure 5 for Figure 3 A three-dimensional schematic diagram of the rear positioning block shown;
[0027] Figure 6 for Figure 2 A 3D schematic diagram of the panel shown;
[0028] Inner protective part 00, inner protective cover 3, pull groove 31, first shaft hole 32, clearance notch 33; slider 4, contact surface 40, reversing beam 41, moving arm 42, pull shaft 43, lower limit shaft 44, vertical end plate 45, vertical slide groove 46; damping spring 5; rear positioning plate 6, middle through hole 61, clearance opening 62, top block 63, receiving groove 64, first through hole 65, rear protrusion 66, process through hole 67;
[0029] Panel 1, insertion port 10, fixed shaft 11, upper limit end 12, spring groove 13, low position baffle 14, screw hole block 15;
[0030] Outer protective cover 2;
[0031] Charging base body 01, power terminal 011, mounting slot 012. Detailed Implementation
[0032] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, while the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.
[0033] Figures 1 to 6 The figure schematically illustrates a charging dock with secondary protection for the charging port according to one embodiment of the present invention. As shown, the charging dock with secondary protection for the charging port includes: a charging dock body 01, a panel 1, an outer protective cover 2, and an inner protective part 00;
[0034] The front shell of the charging dock body 01 has multiple terminals built in and its front mounting panel 1;
[0035] The charging gun insertion port 10 in the middle of panel 1 is located in front of the terminals;
[0036] The outer protective cover 2 can be opened and installed in front of the panel 1. It can close the front side of the insertion port 10 or open to expose the insertion port 10, thus achieving primary protection. The outer protective cover 2 is rotatably hinged to one side of the panel 1 or slidably connected to the panel 1. When not charging, the outer protective cover 2 closes the front side of the insertion port 10. When charging, the outer protective cover 2 opens to expose the terminals of the charging base body 01 behind the insertion port 10. This setting can achieve good opening and closing operation and has a good protective effect.
[0037] The inner protective section 00 includes two inner protective covers 3 and a slider 4;
[0038] After the upper ends of the two inner protective covers 3 are symmetrically rotated and connected to the panel 1, the preferred structure for the symmetrical rotational connection between the two is as follows: the rear end face of the panel 1 is integrally vertically connected to two fixed shafts 11, the two fixed shafts 11 are located above the insertion port 10 and are symmetrical about the vertical center line of the insertion port 10; the first shaft hole 32 on the inner side of the upper end of the inner protective cover 3 is rotatably sleeved with the fixed shaft 11. The beneficial effect of this setting is that it facilitates good circumferential rotation.
[0039] The two inner protective covers 3 can seal the two sides of the insertion port 10 and provide secondary protection for the power terminal 011 directly behind it. The inner protective cover 3 is provided with a pull groove 31 with an elongated hole structure.
[0040] The slider 4 includes a reversing beam 41 and at least one movable arm 42 connected to the front side of the reversing beam 41. The reversing beam 41 is located behind the two inner protective covers 3 and its front side has two pull shafts 43 slidably connected to two pull grooves 31. The movable arm 42 protrudes forward from the middle of the two inner protective covers 3 and is slidably connected to the panel 1. A vertical damping spring 5 is provided between the upper end of the movable arm 42 and the panel 1, and its lower end front side has a rearwardly inclined contact surface 40.
[0041] The charging gun contacts or detaches from the contact surface 40, causing the slider 4 to move up or down, which in turn causes the inner protective cover 3 to rotate to expose or close the power terminal 011, thus achieving secondary protection.
[0042] Open the outer protective cover 2 to expose the insertion port 10. The front end of the charging gun enters the insertion port 10 and pushes the contact surface 40 to move the slider 4 upward and compress the damping spring 5. This causes the two pulling shafts 43 to drive the two inner protective covers 3 to rotate outward simultaneously and fully expose the power terminal 011, so that the charging gun can be plugged into the charging socket.
[0043] When the charging gun is pulled out and disconnected from the contact surface 40, the damping spring 5 causes the slider 4 to move downward, causing the two pulling shafts 43 to drive the two inner protective covers 3 to rotate inward simultaneously and close the two ends of the back side of the insertion port 10, thus closing the outer protective cover 2 and achieving secondary protection for the power terminal 011.
[0044] This charging dock with secondary protection for the charging port has an external protective cover 2 and a built-in inner protective part 00 for double protection of the power terminal 011. Its advantages are: First, the charging dock's insertion port 10 has a double protection mechanism. When not in use, the sealing is better. When in use, when the external protective cover 2 is open and the charging gun is not yet inserted into the charging dock, the power terminal is covered by the built-in inner protective cover 3 and is not exposed. Only when the charging gun enters the insertion port 10 will the inner protective cover 3 gradually open until the charging gun inserts into the terminal, at which point the inner protective cover 3 is fully open. Therefore, throughout the entire insertion and removal process, the power terminal 011 is protected. 1. It is not exposed, thus avoiding the risk of electric shock due to misoperation or contact between metal tools and power terminals, resulting in high safety performance; 2. The inner protective part 00 is passively opened when the charging gun is inserted, without the need for a separate inner cover opening action, making operation simple, without redundant drive or power components, and the overall structure is simple; 3. The inner protective part 00 adopts a linkage structure formed by a slider and the inner protective cover, which is quick and reliable to open and close, and is equipped with a vertical damping spring 5, which can automatically reset for protection; 4. The inner protective cover 3 of this device is located directly in front of the power terminal 011, and the other components are placed on top, resulting in a compact overall structure.
[0045] Preferably, the pull groove 31 of the inner protective cover 3 is a transverse elongated through hole located above and outside the first shaft hole 32. The reversing beam 41 is preferably a transverse rectangular column, with two cylindrical pull shafts 43 integrally and vertically connected at both ends of the front side of the rectangular column. The pull shafts 43 and the pull groove 31 are sleeved with equal diameter or with a small gap. The beneficial effect is that this setting can achieve good power input and stable operation without jamming.
[0046] Furthermore, the upper and lower surfaces of the arc-shaped base plate of the inner protective cover 3 are inclined, and the outer side is provided with several clearance notches 33. The space enclosed by the upper ends of the two arc-shaped base plates is the contact space; the four power terminals 011 are laterally symmetrically distributed on both sides of the lower end of the front shell of the charging base body 01. In the natural state, the lower ends of the two arc-shaped base plates are directly opposite the four power terminals 011. Its beneficial effect is that this setting achieves a good secondary shielding effect.
[0047] Furthermore, the rear end face of panel 1 is integrally provided with an upper limit end 12, which is located between the two fixed shafts 11 of panel 1. The upper end of the moving arm 42 is integrally provided with a vertical lower limit shaft 44. The upper end of the damping spring 5 is connected to the upper limit end 12 and the lower end is sleeved on the lower limit shaft 44. Preferably, panel 1 is also provided with a vertical spring groove 13, and the upper limit end 12 is a vertical blind hole in the upper end wall of the spring groove 13. The moving arm 42 is vertically slidably connected to the spring groove 13 with equal diameter. The damping spring 5 is gapped in the spring groove 13, and the upper end of the damping spring 5 passes through the vertical blind hole and the lower end is sleeved on the lower limit shaft 44. Its beneficial effects are: this setting can achieve high-precision vertical sliding and vertical elastic buffering, and the overall structure is compact and small in size.
[0048] Preferably, the upper wall of the spring groove 13 is a vertically movable high-position baffle; the upper rear edge of the insertion port 10 of the panel 1 is also integrally vertically connected to a low-position baffle 14, and the lower surface of the reversing beam 41 is integrally vertically connected to a vertical end plate 45, with the low-position baffle 14 and the vertical end plate 45 facing each other vertically. The beneficial effect is that this arrangement improves positional accuracy and prevents abnormal movements.
[0049] Furthermore, there are two damping springs 5;
[0050] The rear end face of panel 1 is symmetrically provided with two sets of upper limit ends 12 and spring grooves 13 arranged vertically, and the lower baffle 14 is located between the two spring grooves 13.
[0051] The front side of the reversing beam 41 is symmetrically connected to the upper ends of the two moving arms 42, and the middle of the lower surface of the reversing beam 41 is vertically connected to the vertical end plate 45.
[0052] A rectangular vertical groove 46 is located between the two moving arms 42, and a rectangular guide post is formed between the two spring grooves 13. The vertical groove 46 slides vertically against the guide post. The beneficial effect is that this arrangement further improves the accuracy of vertical movement.
[0053] Furthermore, the inner protective part 00 also includes a rear positioning plate 6. Multiple first through holes 65 on the edge of the rear positioning plate 6 and multiple screw holes 15 on the rear side of the panel 1 are fixedly connected by threaded parts. The enclosing space between the rear positioning plate 6 and the panel 1 is the moving area of the inner protective cover 3. One side of the inner protective cover 3 is attached to the rear of the panel 1, and the other side is attached to the front of the rear positioning plate 6 or has a small gap. The rear positioning plate 6 has a central through hole 61 with the same outline size as the insertion port 10. A clearance opening 62, which cooperates with the low-position baffle 14 of the panel 1, is provided in the middle of the upper edge of the central through hole 61. Top blocks 63 are provided on both sides of the clearance opening 62, and the top blocks 63 are attached to the rear surface of the moving arm 42 of the slider 4. The beneficial effect is that this arrangement ensures that the components operate without back-and-forth sway.
[0054] Preferably, the rear side of the panel 1 is provided with multiple screw hole blocks 15, and the outer edge of the rear positioning plate 6 is provided with multiple receiving grooves 64. The rear side of the receiving grooves 64 forms a rear protrusion 66 with a first through hole 65. The receiving grooves 64 are fitted onto the screw hole blocks 15. The threaded parts pass through the first through hole 65 and are screwed into the screw hole blocks 15 to fix the rear positioning block 6 to the rear of the panel 1. When the panel 1 is installed on the charging base body 1, the rear protrusion 66 enters the mounting groove 012 of the front end shell of the charging base body 01. Its advantages are: the connection strength is high and the size is compact.
[0055] Preferably, the rear positioning plate 6 has multiple process through holes 67 in the middle. The advantages are: this arrangement facilitates the arrangement of other components and reduces the overall weight.
[0056] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.
Claims
1. A charging dock with secondary protection for the charging port, characterized in that, Includes: a charging dock body (01), a panel (1), an outer protective cover (2), and an inner protective part (00); The front shell of the charging dock body (01) has multiple terminals built in and a front mounting panel (1). The charging gun insertion port (10) in the middle of the panel (1) is located in front of the terminal; The outer protective cover (2) can be opened and installed in front of the panel (1) to protect the charging port. The inner protective part (00) includes two inner protective covers (3) and a slider (4); After the upper ends of the two inner protective covers (3) are symmetrically rotated to connect the panel (1), the two inner protective covers (3) can close the power terminals (011) on both sides of the insertion port (10) and provide secondary protection to the rear of the power terminal. The inner protective cover (3) is provided with a pull groove (31) with an elongated hole structure. The slider (4) includes a reversing beam (41) and at least one movable arm (42) connected to the front side of the reversing beam (41). The reversing beam (41) is located behind the two inner protective covers (3) and its two front pull shafts (43) are slidably connected to the two pull grooves (31). The movable arm (42) protrudes from the middle of the two inner protective covers (3) and is slidably connected to the panel (1). A vertical damping spring (5) is provided between the upper end of the movable arm (42) and the panel (1), and its lower front side is provided with a rearwardly inclined contact surface (40). The charging gun is attached to or detached from the contact surface (40), causing the slider (4) to move up or down, so that the inner protective cover (3) rotates to expose or rotate to close the power terminal (011), thus achieving secondary protection of the charging port.
2. A charging dock with secondary protection for the charging port according to claim 1, characterized in that, The rear end face of the panel (1) is vertically connected to two fixed shafts (11), which are located above the insertion port (10) and are symmetrical about the vertical center line of the insertion port (10); the first shaft hole (32) on the inner side of the upper end of the inner protective cover (3) is rotatably sleeved with the fixed shaft (11).
3. A charging dock with secondary protection for the charging port according to claim 2, characterized in that, The inner protective cover (3) has a pull groove (31) that is a transverse elongated through hole located above the outer side of the first shaft hole (32). The two ends of the front side of the reversing beam (41) are integrally vertically connected to two cylindrical pull shafts (43). The pull shafts (43) and the pull groove (31) are sleeved with equal diameter or with a small gap.
4. A charging dock with secondary protection for the charging port according to claim 3, characterized in that, The four power terminals (011) are symmetrically distributed laterally on both sides of the lower end of the front shell of the charging base body (01). In its natural state, the arc base plates of the two inner protective covers (3) face the four power terminals (011).
5. A charging dock with secondary protection for the charging port according to claim 1, characterized in that, The upper limit end (12) integrally provided on the rear end face of the panel (1) is located between the two fixed shafts (11) of the panel (1). The upper end of the moving arm (42) is integrally provided with a vertical lower limit shaft (44). The two ends of the damping spring (5) are respectively connected to the upper limit end (12) and the lower limit shaft (44).
6. A charging dock with secondary protection for the charging port according to claim 5, characterized in that, The panel (1) is also provided with a vertical spring groove (13), and the upper limit end (12) is a vertical blind hole in the upper wall of the spring groove (13); the moving arm (42) is vertically slidably connected to the spring groove (13) with equal diameter, and the damping spring (5) is gapped in the spring groove (13). The upper end of the damping spring (5) passes through the vertical blind hole and the lower end is sleeved with the lower limit shaft (44).
7. A charging dock with secondary protection for the charging port according to claim 6, characterized in that, The upper rear edge of the insertion port (10) is also integrally vertically connected to the low baffle (14), and the lower surface of the reversing beam (41) is integrally vertically connected to the vertical end plate (45) which is opposite to the low baffle (14).
8. A charging dock with secondary protection for the charging port according to claim 7, characterized in that, There are two damping springs (5); the rear end face of the panel (1) is symmetrically provided with two sets of upper limit ends (12) and spring grooves (13), and the low baffle (14) is located between the two spring grooves (13); the front side of the reversing beam (41) is symmetrically connected to the upper ends of the two moving arms (42).
9. A charging dock with secondary protection for the charging port according to claim 1, characterized in that, The inner protective part (00) also includes a rear positioning plate (6), the edge of the rear positioning plate (6) and a plurality of screw hole blocks (15) on the rear side of the panel (1) are connected by threaded parts, and the space surrounded by the rear positioning plate (6) and the panel (1) is the moving area of the inner protective cover (3).
10. A charging dock with secondary protection for the charging port according to claim 9, characterized in that, The rear positioning plate (6) is provided with a first through hole (65) that cooperates with the insertion port (10), and the middle of the upper edge of the middle through hole (61) is provided with a clearance opening (62) that cooperates with the low baffle (14) of the panel (1). The top blocks (63) on both sides of the clearance opening (62) fit against the rear surface of the moving arm (42).