Charging seat

Abstract

The utility model discloses a charging seat, which comprises a charging seat shell, a guide cylinder and a terminal, a terminal head comprises a closed end and a plurality of elastic arms extending from the closed end, the end face of the closed end extends to form a bolt, a terminal tail is provided with a fixing part and a connecting part which are connected with each other, and the end face of the fixing part is provided with a threaded hole. The end face of the closed end abuts against the end face of the fixing part and is in threaded connection and electric connection with the threaded hole through a bolt. The front end of the panel is provided with a plugging interface of a plugging cavity, the bottom wall of the plugging cavity is provided with a through mounting hole and a mounting groove, a clamping structure is arranged between the inner wall of the mounting groove and the outer wall of the guide cylinder so as to fix the guide cylinder in the mounting groove, the terminal is mounted in the mounting hole, and the plurality of elastic arms and at least part of the fixing part are inserted into the guide hole. The plug interface is detachably provided with the guide cylinder, the terminal comprises the terminal head and the terminal tail, at least part of the terminal head is arranged in the guide hole, when the terminal head is damaged, the guide cylinder is detached firstly, and then the terminal head is replaced, so that the maintenance cost is low, and the working time is short.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and more specifically, to a charging seat. Background Art

[0002] With gasoline fuel resources dwindling and environmental concerns driving the shift to new energy vehicles, more and more countries are prioritizing new energy vehicles as the future of automotive development. As new energy vehicles become increasingly popular, the charging systems that recharge new energy batteries are also rapidly developing. Currently, charging terminals within charging stations are integrated. Damage or failure of these terminals requires the entire terminal to be removed from the rear end of the station's housing for repair or replacement. This labor-intensive disassembly and repair process is often accompanied by the preference to discard and replace the entire charging terminal, resulting in high repair costs.

[0003] Therefore, a new solution is urgently needed in the prior art to solve the above problems. Utility Model Content

[0004] One purpose of the present utility model is to provide a new technical solution for a charging stand to solve the problem that when an integral terminal is damaged, the entire terminal needs to be removed from the rear end of the shell of the charging stand for repair or replacement, the disassembly and repair work time is long, and during repair, it is preferred to discard and replace the charging electronics as a whole, resulting in high repair costs.

[0005] According to the utility model, a charging seat is provided, comprising a charging seat shell with a panel, a terminal and a guide cylinder, the terminal comprising a terminal head and a terminal tail, the terminal head comprising a closed end, and a plurality of elastic arms extending from the outer periphery of the closed end to one side of the closed end, the end face of the closed end extending with a bolt in a direction opposite to the elastic arm, the terminal tail having a fixing portion and a connecting portion connected to each other, the end face of the fixing portion being provided with a threaded hole, the end face of the closed end abutting against the end face of the fixing portion and being screwed and electrically connected to the threaded hole through the bolt; a plug-in interface with a plug-in cavity is vertically extended from the front end of the panel, the bottom wall of the plug-in cavity being provided with a through mounting hole and a mounting groove coaxial with the mounting hole, the guide cylinder having a through guide hole, a clamping structure being provided between the inner wall of the mounting groove and the outer wall of the guide cylinder, and the guide cylinder being fixed in the mounting groove by the clamping structure, the terminal being installed in the mounting hole, the plurality of elastic arms and at least part of the fixing portion being inserted into the guide hole.

[0006] Optionally, the clamping structure is a clamping protrusion protruding radially from the side wall of the mounting groove and a clamping groove corresponding to the clamping protrusion and opened on the outer wall of the guide cylinder.

[0007] Optionally, there are multiple clamping protrusions and multiple clamping grooves, and the multiple clamping protrusions and the clamping grooves are circumferentially spaced apart on the inner wall of the mounting groove and the outer wall of the guide cylinder.

[0008] Optionally, the engaging groove includes an introduction groove opened from the bottom surface of the guide cylinder to the side wall of the guide cylinder, and a locking groove circumferentially connected to the side wall of the introduction groove, and the engaging protrusion enters the locking groove through the introduction groove and is locked with the locking groove.

[0009] Optionally, the axial heights from the introduction groove and the locking groove to the bottom surface of the guide column are the same, and the heights are greater than or equal to the axial height from the top surface of the locking protrusion to the bottom surface of the installation groove.

[0010] Optionally, the axial height of the locking groove is smaller than the axial height of the introduction groove, and is clearance-matched with the engaging protrusion.

[0011] Optionally, the guide hole includes a first through hole and a second through hole that are connected, the first through hole and the second through hole are connected by a guide bevel, the diameter of the second through hole is larger than the first through hole, the closed end and at least part of the fixing portion are arranged in the second through hole, and the plurality of elastic arms are arranged in the first through hole and are gap-matched with the inner wall of the first through hole.

[0012] Optionally, the multiple elastic arms surround and form a plug-in cavity together with the closed end, the diameter of the plug-in cavity gradually decreases from the closed end to the free end of the elastic arm, and the first through hole is arranged in a conformal manner with the outer walls of the multiple plug-in cavities.

[0013] Optionally, the inner wall of the first through hole is provided with a radially inwardly protruding annular stop portion on one side of the free end of the guide cylinder, and the stop portion abuts against the free ends of the plurality of elastic arms to limit the maximum depth of the terminal inserted into the guide cylinder.

[0014] Optionally, a terminal bracket is further included, and the outer edge of the panel extends in a direction opposite to the plug-in interface to form a mounting cavity axially connected to the mounting hole. The terminal bracket is detachably installed in the mounting cavity, and the bracket opens a fixed bayonet from the outside to the side wall. The outer wall of the fixing part is provided with a card slot, and the card slot is inserted into the fixed bayonet to fix the terminal on the charging seat shell.

[0015] Optionally, a drainage groove is opened on the outer wall of the guide cylinder.

[0016] The beneficial effects of the utility model are:

[0017] By changing the guide cylinder in the plug-in interface into a detachable type, fixing it in the plug-in interface through a snap-on connection structure, and then designing the terminal into a detachable terminal head and terminal tail, specifically a screw connection, the terminal head is at least partially inserted into the guide hole of the guide cylinder, which makes installation convenient and quick. When the terminal head is damaged or fails, it is only necessary to rotate and remove the guide cylinder in the plug-in interface, and then remove the terminal head separately. Maintenance and replacement are simple, saving time and effort. There is no need to replace the entire terminal as a whole, nor is there any need to remove and replace the entire terminal from the rear end of the charging seat shell, which solves the problems of high terminal maintenance cost and complicated assembly process.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0020] Figure 1 This is a schematic diagram of the structure of the charging base housing of the utility model in the direction of the plug interface;

[0021] Figure 2 This is a structural diagram of the guide cylinder of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the terminal of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of a charging stand of the present invention;

[0024] Figure 5 This is an enlarged detail diagram of the locking structure of the clamping protrusion and the locking groove of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the utility model in which the axial height of the locking groove is smaller than the axial height of the introduction groove;

[0026] Figure 7 This is a schematic diagram of the structure of the terminal and terminal bracket installation of the utility model;

[0027] Figure 8 The figure is a schematic diagram of the exploded structure of a charging stand of the present utility model.

[0028] The following are marked in the figure:

[0029] 10. Charging seat shell; 11. Panel; 12. Plug-in interface; 121. Plug-in cavity; 122. Mounting hole; 123. Mounting slot; 124. Snap-in protrusion; 13. Mounting cavity; 20. Terminal; 21. Terminal head; 211. Elastic arm; 212. Closed end; 213. Bolt; 22. Terminal tail; 221. Fixing part; 222. Connecting part; 223. Threaded hole; 224. Snap-in slot; 30. Guide cylinder; 31. Guide hole; 32. Snap-in slot; 321. Lead-in slot; 322. Locking slot; 33. First through hole; 34. Second through hole; 35. Annular stopper; 36. Drainage groove; 40. Terminal bracket; 41. Fixing bayonet. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] According to the first aspect of the present invention, Figure 1 and Figure 8As shown, a charging stand is provided, comprising a charging stand housing 10 having a panel 11, a terminal 20 and a guide cylinder 30, wherein the terminal 20 comprises a terminal 20 head and a terminal 20 tail, the terminal 20 head comprising a closed end 212, and a plurality of elastic arms 211 extending from the outer periphery of the closed end 212 to one side of the closed end 212, the end face of the closed end 212 extending with a bolt 213 in a direction opposite to the elastic arm 211, the terminal 20 tail having a fixing portion 221 and a connecting portion 222 connected to each other, the end face of the fixing portion 221 being provided with a threaded hole 223, the end face of the closed end 212 abutting against the end face of the fixing portion 221 and passing through the screw hole 223. The bolt 213 is screwed and electrically connected to the threaded hole 223; the front end of the panel 11 vertically extends with a plug-in interface 12 having a plug-in cavity 121, and the bottom wall of the plug-in cavity 121 is provided with a through mounting hole 122 and a mounting groove 123 coaxial with the mounting hole 122. The guide cylinder 30 has a through guide hole 31, and a snap-fit ​​structure is provided between the inner wall of the mounting groove 123 and the outer wall of the guide cylinder 30, and the guide cylinder 30 is fixed in the mounting groove 123 by the snap-fit ​​structure. The terminal 20 is installed in the mounting hole 122, and a plurality of the elastic arms 211 and at least part of the fixing portion 221 are inserted into the guide hole 31.

[0035] With gasoline fuel resources dwindling and environmental concerns driving the rise of new energy vehicles (NEVs), more and more countries are prioritizing the development of new energy vehicles (NEVs). As new energy vehicles become increasingly popular, the development of charging systems for recharging new energy batteries is also accelerating. Currently, in charging systems, the charging terminal 20 within the charging station is integral. If the charging terminal 20 becomes damaged or malfunctions, the entire charging terminal 20 must be removed from the rear end of the charging station housing for repair or replacement. This requires significant time and effort, and the entire charging terminal 20 is often discarded and replaced during repair, resulting in high repair costs.

[0036] By changing the guide cylinder 30 in the plug interface 12 into a detachable type, and fixing it in the plug interface 12 through a snap-on connection structure, and then designing the terminal 20 into a detachably connected terminal 20 head and terminal 20 tail, specifically a screw connection, the terminal 20 head is at least partially inserted into the guide hole 31 of the guide cylinder 30, which makes installation convenient and quick. When the terminal 20 head is damaged or fails, it is only necessary to rotate and remove the guide cylinder 30 in the plug interface 12, and then remove the terminal 20 head separately. Maintenance and replacement are simple, time-saving and labor-saving. There is no need to replace the entire terminal 20 as a whole, nor is there any need to remove and replace the entire terminal 20 from the rear end of the charging seat shell 10, which solves the problem of high cost and complicated assembly process when repairing the terminal 20.

[0037] In some embodiments, as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 7 As shown, the clamping structure is a clamping protrusion 124 radially protruding from the side wall of the installation groove 123 and a clamping groove 32 corresponding to the clamping protrusion 124 and opened on the outer wall of the guide cylinder 30 .

[0038] The engaging protrusion 124 engages with the engaging groove 32 to fix the guide cylinder 30 in the plug interface 12 . When disassembly is required, the guide cylinder 30 can also be quickly disassembled from the plug interface 12 .

[0039] In some embodiments, as Figure 1 and Figure 2 As shown, there are multiple clamping protrusions 124 and multiple clamping grooves 32, and the multiple clamping protrusions 124 and the clamping grooves 32 are circumferentially spaced apart on the inner wall of the installation groove 123 and the outer wall of the guide cylinder 30.

[0040] The number of multiple snap-fit ​​protrusions 124 and multiple snap-fit ​​grooves 32 can provide a more stable snap-fit ​​force for the installation of the guide cylinder 30 in the installation groove 123, preventing it from shaking and causing the terminal 20 head to be unprotected and damaged. The circumferential spacing arrangement can provide a uniform snap-fit ​​force for the guide cylinder 30, preventing uneven force from causing tilting, making it difficult to align the terminal 20 head and the guide hole 31, and causing installation difficulties.

[0041] In some embodiments, as Figure 2 As shown, the locking groove 32 includes an introduction groove 321 opened from the bottom surface of the guide cylinder 30 to the side wall of the guide cylinder 30, and a locking groove 322 circumferentially connected to the side wall of the introduction groove 321. The locking protrusion 124 enters the locking groove 322 through the introduction groove 321 and is locked with the locking groove 322.

[0042] The design of the guide groove provides a guide for the installation of the guide cylinder 30, preventing the end of the guide cylinder 30 from damaging the clamping protrusion 124 due to incorrect angle during installation. The guide cylinder 30 can be installed quickly and correctly under the guidance of the guide groove, which is simple to install and takes a short time.

[0043] In some embodiments, as Figure 2 and Figure 5 As shown, the axial heights from the introduction groove 321 and the locking groove 322 to the bottom surface of the guide column are the same, and the heights are greater than or equal to the axial height from the top surface of the locking protrusion 124 to the bottom surface of the installation groove 123 .

[0044] The axial heights of the guide groove 321 and the locking groove 322 to the bottom surface of the guide column are the same, so that the locking protrusion 124 can quickly slide from the guide groove into the locking groove 322 and be locked with the locking groove 322 .

[0045] In some embodiments, as Figure 5 and Figure 6 As shown, the axial height of the locking groove 322 is smaller than the axial height of the introducing groove 321 , and is clearance-matched with the engaging protrusion 124 .

[0046] The locking groove 322 and the clamping protrusion 124 are loosely matched, and the clamping protrusion 124 can be locked in the locking groove 322 to prevent the two from being separated, causing the guide cylinder 30 to fall off from the installation groove 123.

[0047] In some embodiments, as Figure 4 As shown, the guide hole 31 includes a first through hole 33 and a second through hole 34 that are connected. The first through hole 33 and the second through hole 34 are connected by a guide bevel. The diameter of the second through hole 34 is larger than that of the first through hole 33. The closed end 212 and at least part of the fixing portion 221 are arranged in the second through hole 34. The multiple elastic arms 211 are arranged in the first through hole 33 and are gap-matched with the inner wall of the first through hole 33.

[0048] In some embodiments, as Figure 4 As shown, the multiple elastic arms 211 surround and form the plug-in cavity 121 together with the closed end 212. The diameter of the plug-in cavity 121 gradually decreases from the closed end 212 to the free end of the elastic arm 211. The first through hole 33 is arranged in accordance with the outer wall of the multiple plug-in cavities 121.

[0049] The first through hole 33 is arranged in a conformal manner with the outer walls of the multiple plug-in cavities 121, which can not only better protect the elastic arm 211, but also prevent the elastic arm 211 from shaking in the first through hole 33, resulting in eccentricity with the mating terminal 20 and causing electrical risks.

[0050] In some embodiments, as Figure 2 and Figure 4 As shown, the inner wall of the first through hole 33 is provided with a radially inwardly protruding annular stop portion 35 on one side of the free end of the guide cylinder 30, and the stop portion abuts against the free ends of the multiple elastic arms 211 to limit the maximum depth of the terminal 20 inserted into the guide cylinder 30.

[0051] This design can completely limit the elastic arm 211 within the guide cylinder 30 so that the elastic arm 211 is protected by the guide cylinder 30 . The elasticity of the elastic arm 211 is maintained for a long time, thereby extending the service life of the terminal 20 .

[0052] In some embodiments, as Figure 7-Figure 8 As shown, it also includes a terminal 20 bracket, and the outer edge of the panel 11 extends in a direction opposite to the plug-in interface 12 to form a mounting cavity 13 axially connected to the mounting hole 122. The terminal 20 bracket is detachably mounted in the mounting cavity 13, and the bracket opens a fixing bayonet 41 from the outside to the side wall. The outer wall of the fixing portion 221 is provided with a card slot 224, and the card slot 224 is inserted into the fixing bayonet 41 to fix the terminal 20 on the charging seat shell.

[0053] The terminal 20 bracket can fix the terminal 20 as a whole on the charging base shell. During use, the terminal 20 is ensured not to shake when subjected to vibration, thereby ensuring the stability of the electrical connection. When the tail of the terminal 20 fails, the terminal 20 can also be removed from the installation cavity 13 first. It is only necessary to remove the tail of the terminal 20 from the terminal 20 bracket for repair and replacement. There is no need to replace the entire terminal 20. Disassembly is simple and quick, and the maintenance cost is low. Installation and assembly are also simple and quick, saving labor time and cost.

[0054] In some embodiments, as Figure 2 As shown, a drainage groove 36 is opened on the outer wall of the guide cylinder 30 .

[0055] The main function of the drainage groove 36 is to drain the moisture in the plug interface 12 of the charging stand to the outside, provide a safe environment during the use of the charging stand, and ensure the stability and safety of the electrical connection between the terminals 20.

[0056] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A charging station, comprising a charging station housing having a panel, a terminal and a guide cylinder, characterized in that: The terminal includes a terminal head and a terminal tail, the terminal head includes a closed end, and a plurality of elastic arms extending from the outer periphery of the closed end to one side of the closed end, and a bolt extends from the end surface of the closed end in a direction opposite to the elastic arm. The terminal tail has a fixing portion and a connecting portion connected to each other, a threaded hole is opened on the end surface of the fixing portion, and the closed end surface abuts against the end surface of the fixing portion and is screwed and electrically connected to the threaded hole through the bolt; The front end of the panel is vertically extended with a plug-in interface having a plug-in cavity, and the bottom wall of the plug-in cavity is provided with a through mounting hole and a mounting groove coaxial with the mounting hole. The guide cylinder has a through guide hole, and a clamping structure is provided between the inner wall of the mounting groove and the outer wall of the guide cylinder, and the guide cylinder is fixed in the mounting groove by the clamping structure. The terminal is installed in the installation hole, and the plurality of elastic arms and at least a portion of the fixing portion are inserted into the guide hole.

2. A charging stand according to claim 1, characterized in that: The clamping structure is a clamping protrusion protruding radially from the side wall of the installation groove and a clamping groove corresponding to the clamping protrusion and provided on the outer wall of the guide cylinder.

3. A charging stand according to claim 2, characterized in that: There are a plurality of the clamping protrusions and the clamping grooves, and the plurality of the clamping protrusions and the clamping grooves are circumferentially spaced apart on the inner wall of the mounting groove and the outer wall of the guide cylinder.

4. The charging stand according to claim 3, characterized in that: The engaging groove includes an introduction groove opened from the bottom surface of the guide cylinder to the side wall of the guide cylinder, and a locking groove circumferentially connected to the side wall of the introduction groove. The engaging protrusion enters the locking groove through the introduction groove and is locked with the locking groove.

5. The charging stand according to claim 4, characterized in that: The axial heights from the introduction groove and the locking groove to the bottom surface of the guide cylinder are the same, and the heights are greater than or equal to the axial height from the top surface of the clamping protrusion to the bottom surface of the installation groove.

6. The charging stand according to claim 4, characterized in that: The axial height of the locking groove is smaller than the axial height of the introducing groove, and is in clearance fit with the clamping protrusion.

7. The charging stand according to claim 1, characterized in that: The guide hole includes a first through hole and a second through hole that are connected, the first through hole and the second through hole are connected by a guide bevel, the diameter of the second through hole is larger than that of the first through hole, the closed end and at least part of the fixing portion are arranged in the second through hole, and the multiple elastic arms are arranged in the first through hole and are gap-matched with the inner wall of the first through hole.

8. The charging stand according to claim 7, characterized in that: The multiple elastic arms surround and form a plug-in cavity together with the closed end. The diameter of the plug-in cavity gradually decreases from the closed end to the free end of the elastic arm. The first through hole is arranged in a conformal manner with the outer walls of the multiple plug-in cavities.

9. The charging stand according to claim 7, characterized in that: The inner wall of the first through hole is provided with a radially inwardly protruding annular stop portion on one side of the free end of the guide cylinder, and the stop portion abuts against the free ends of the plurality of elastic arms to limit the maximum depth of the terminal inserted into the guide cylinder.

10. The charging stand according to claim 1, characterized in that: It also includes a terminal bracket, and the outer edge of the panel extends in a direction opposite to the plug-in interface to form a mounting cavity axially connected to the mounting hole. The terminal bracket is detachably installed in the mounting cavity, and the bracket opens a fixed bayonet from the outside to the side wall. The outer wall of the fixing part is provided with a card slot, and the card slot is inserted into the fixed bayonet to fix the terminal on the charging seat shell.

11. The charging stand according to claim 1, characterized in that: The outer wall of the guide cylinder is provided with a drainage groove.

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