Vehicle portable charger and control box thereof

Abstract

The utility model belongs to the technical field of vehicle charging equipment, and particularly provides a vehicle portable charger and a control box thereof. A shell of the control box is provided with a locking mechanism, the locking mechanism comprises a seat body fixed relative to the shell and a lock catch rotationally installed on the seat body, and the lock catch is provided with a locking position used for being matched with a lock hook on a change-over plug in a stopping mode and an unlocking position separated from the lock hook on the change-over plug in the rotating stroke. The lock hook is provided with an elastic piece enabling the lock hook to automatically restore to the locking position and an unlocking structure used for bearing external force to enable the lock hook to be converted from the locking position to the unlocking position. The portable charger for the vehicle comprises the control box. The lock catch in the locking mechanism arranged on the shell can be matched with the lock hook on the change-over plug in a stopping mode and can be continuously kept at the locking position under the action of the elastic piece, and it is guaranteed that high insertion strength can be achieved between the change-over plug and the change-over socket on the control box.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle charging equipment, and in particular relates to a portable vehicle charger and a control box thereof. Background Art

[0002] Charging mode 2 (MODE2) of new energy vehicles (pure electric vehicles, plug-in hybrid vehicles, extended-range vehicles, etc.) refers to the mode of charging with a portable charger. The portable charger includes a plug end for plugging into a household charging socket, a control box, a charging gun for plugging into the vehicle's AC charging port, and a line connecting the charging plug and the charging gun. The charging plug and the control box are connected through a conversion connector. The conversion connector includes a conversion socket integrated on the control box and a conversion plug connected to the plug end through a wire. The conversion plug and the conversion socket are plugged in and matched.

[0003] When the user is in use, the control box may need to remain suspended due to the wiring conditions on site. Therefore, the accidental disconnection of the conversion plug and the conversion socket needs to be considered during design, that is, it is necessary to improve the plug-in strength of the conversion plug and the conversion socket. The utility model patent with authorization announcement number CN220456809U (publication date: 2024.02.06) discloses a conversion connector for a mode 2 charger, wherein the conversion plug of the conversion connector is provided with a buckle protrusion, and the mode 2 shell (shell of the control box) is provided with a groove portion. When the conversion plug and the conversion socket are plugged in, the buckle protrusion can be inserted into the groove portion, thereby increasing the friction between the conversion plug and the shell, and to a certain extent increasing the resistance to separation of the conversion plug and the conversion socket.

[0004] In actual use, the applicant found that the above solution has limited effect on improving the plug-in strength between the conversion plug and the conversion socket. In order to increase the friction between the buckle protrusion and the groove, it is necessary to increase the height of the buckle protrusion and the depth of the groove, but this will make it difficult for the user to pull out the conversion plug.

[0005] In view of this, it is necessary to provide a control box that can achieve reliable locking of the conversion plug and the conversion socket and facilitate the user to unplug the conversion plug when needed. Utility Model Content

[0006] The purpose of the utility model is to provide a control box of a portable car charger to solve the technical problem of insufficient insertion strength between the conversion plug and the conversion socket of the portable car charger in the prior art. The purpose of the utility model is also to provide a portable car charger to solve the same technical problem.

[0007] To achieve the above-mentioned purpose, the technical solution of the control box of the portable charger for vehicle provided by the utility model is:

[0008] A control box of a portable charger for a vehicle comprises a shell, on which a locking mechanism is arranged, the locking mechanism comprises a seat body fixed relative to the shell and a lock buckle rotatably mounted on the seat body, the lock buckle has a locking position for engaging with a lock hook on a conversion plug and an unlocking position for separating from the lock hook on the conversion plug in its rotational travel, the lock buckle is provided with an elastic member for automatically restoring it to the locking position and an unlocking structure for bearing an external force to convert it from the locking position to the unlocking position.

[0009] As a further improvement, the lock buckle is a snap-lock type lock buckle, and one end of the lock buckle is used for pushing and matching with the lock hook of the conversion plug.

[0010] As a further improvement, one side surface of the lock is an exposed surface not covered by the seat body, and the end of the lock used to cooperate with the lock hook on the conversion plug is defined as the front end, and the part of the exposed surface located behind the rotation axis of the lock forms the unlocking structure.

[0011] As a further improvement, in the locked position, the exposed surface is flush with the end surface of the seat body.

[0012] As a further improvement, the seat body is an embedded seat body embedded in the shell wall.

[0013] As a further improvement, the seat body is fixedly matched with the shell through an elastic buckle.

[0014] As a further improvement, one of the seat body and the shell body is provided with a positioning protrusion, and the other is provided with a positioning groove for the positioning protrusion to be inserted into.

[0015] As a further improvement, the elastic member is a compression spring, one end of the compression spring abuts against the lock catch, and the other end abuts against the seat body.

[0016] As a further improvement, one of the lock buckle and the seat body is provided with a guide column, and the other is provided with a guide groove. One end of the compression spring is sleeved on the guide column, and the other end is arranged in the guide groove.

[0017] The beneficial effect is that the utility model belongs to an improved utility model creation. When in use, the lock catch in the locking mechanism arranged on the housing can cooperate with the lock hook on the conversion plug, and can be continuously kept in the locked position under the action of the elastic member, ensuring that the conversion plug and the conversion socket on the control box can have a high plugging strength. At the same time, when unlocking is required, force can be applied to the unlocking mechanism so that the lock catch overcomes the elastic force of the elastic member, and the lock catch rotates to the unlocking position separated from the lock hook. At this time, there will not be much resistance when pulling out the conversion plug, which is convenient for the user to pull out the conversion plug.

[0018] To achieve the above purpose, the technical solution of the portable charger for vehicle provided by the utility model is:

[0019] A portable charger for a vehicle comprises a control box, the control box comprises a shell, a locking mechanism is arranged on the shell, the locking mechanism comprises a seat body fixed relative to the shell and a lock buckle rotatably mounted on the seat body, the lock buckle has a locking position for engaging with a lock hook on a conversion plug and an unlocking position for separating from the lock hook on the conversion plug in its rotation stroke, the lock buckle is provided with an elastic member for automatically restoring it to the locking position and an unlocking structure for bearing an external force to convert it from the locking position to the unlocking position.

[0020] As a further improvement, the lock buckle is a snap-lock type lock buckle, and one end of the lock buckle is used for pushing and matching with the lock hook of the conversion plug.

[0021] As a further improvement, one side surface of the lock is an exposed surface not covered by the seat body, and the end of the lock used to cooperate with the lock hook on the conversion plug is defined as the front end, and the part of the exposed surface located behind the rotation axis of the lock forms the unlocking structure.

[0022] As a further improvement, in the locked position, the exposed surface is flush with the end surface of the seat body.

[0023] As a further improvement, the seat body is an embedded seat body embedded in the shell wall.

[0024] As a further improvement, the seat body is fixedly matched with the shell through an elastic buckle.

[0025] As a further improvement, one of the seat body and the shell body is provided with a positioning protrusion, and the other is provided with a positioning groove for the positioning protrusion to be inserted into.

[0026] As a further improvement, the elastic member is a compression spring, one end of the compression spring abuts against the lock catch, and the other end abuts against the seat body.

[0027] As a further improvement, one of the lock buckle and the seat body is provided with a guide column, and the other is provided with a guide groove. One end of the compression spring is sleeved on the guide column, and the other end is arranged in the guide groove.

[0028] The beneficial effect is that the utility model belongs to an improved invention. When in use, the lock catch in the locking mechanism provided on the housing can cooperate with the lock hook on the conversion plug, and can be kept in the locked position under the action of the elastic member, ensuring that the conversion plug and the conversion socket on the control box can have a high plugging strength. At the same time, when unlocking is required, force can be applied to the unlocking mechanism so that the lock catch overcomes the elastic force of the elastic member, and the lock catch rotates to the unlocking position separated from the lock hook. At this time, there will not be much resistance when pulling out the conversion plug, which is convenient for the user to pull out the conversion plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a partial exploded schematic diagram of the position of the control box in the embodiment of the portable charger for vehicle in the utility model;

[0030] Figure 2 It is a partial cross-sectional view of the control box position in the embodiment of the portable charger for vehicle in the utility model (the process of inserting the conversion plug);

[0031] Figure 3 for Figure 2 A partial enlarged view of the location of the middle locking mechanism;

[0032] Figure 4 It is a partial cross-sectional view of the position of the control box in the embodiment of the portable charger for vehicle in the utility model (unlocked state);

[0033] Figure 5 for Figure 4 A partial enlarged view of the location of the locking mechanism.

[0034] Description of reference numerals:

[0035] 1. Shell; 2. Locking mechanism; 3. Conversion socket; 4. Conversion plug; 201. Seat body; 202. Compression spring; 203. Lock buckle; 204. Rotating shaft; 401. Lock hook. DETAILED DESCRIPTION

[0036] In order to improve the plug-in strength of the control box (conversion socket) and the conversion plug of the portable car charger, while not affecting the normal plug-in and pull-out of the conversion plug, the basic technical concept of the utility model is to set a locking mechanism on the housing of the control box that locks or stops with the lock hook on the conversion plug. The lock buckle of the locking mechanism can maintain a state of locking with the lock hook on the conversion plug under the action of the elastic member, so that the conversion plug and the control box maintain a stable and reliable plug-in relationship. At the same time, the lock buckle is equipped with an unlocking structure, which can be manually unlocked when the conversion plug needs to be unplugged, so that the locking mechanism will not affect the normal unplugging of the conversion plug.

[0037] The present invention is further described in detail below in conjunction with the embodiments.

[0038] The specific embodiment of the portable charger for vehicle provided by the utility model is as follows:

[0039] The portable vehicle charger provided in this embodiment includes a plug end for connecting to a household charging socket, a control box, and a charging gun for plugging into an AC charging port of a vehicle. The plug end and the control box are connected via a pluggable conversion connector. The conversion connector includes a conversion plug 4 and a conversion socket 3. Figure 1 As shown, the control box includes a housing 1, and a conversion socket 3 is embedded in the housing 1. The specific structure inside the conversion plug 4 and the conversion socket 3 can be consistent with the prior art and will not be described in detail.

[0040] like Figure 1-Figure 5 As shown, a locking mechanism 2 is provided on the housing 1, and a locking hook 401 is provided on the outer surface of one side of the conversion plug 4. After the conversion plug 4 is inserted into the conversion socket 3, the locking mechanism 2 can cooperate with the locking hook 401 to improve the insertion strength of the conversion plug 4 and the conversion socket 3. Specifically, the locking mechanism 2 includes a seat body 201, the seat body 201 is fixedly matched with the housing 1, and a lock buckle 203 that can rotate relative to the seat body 201 is installed on the seat body 201, as shown in FIG. Figure 3 As shown, one end of the lock buckle 203 is a locking end ( Figure 3 The locking end is used to engage with the lock hook 401 on the conversion plug 4. When the lock buckle 203 and the lock hook 401 engage, the conversion plug 4 and the housing 1 are in a relatively locked state, and the lock buckle 203 is in the locked position. At the same time, the lock buckle 203 is also configured with an elastic member, which can provide the lock buckle 203 with a torque to rotate the lock buckle 203 to the locked position, that is, under the action of the elastic member, the lock buckle 203 can automatically restore and remain in the locked position. No matter what posture the control box is in when in use, the lock buckle 203 and the lock hook 401 can maintain a stable locked state.

[0041] The lock buckle 203 is also provided with an unlocking structure. When the conversion plug 4 needs to be unplugged, the user can manually apply force to the unlocking structure to rotate the lock buckle 203 to the unlocking position, thereby separating from the lock hook 401. When the conversion plug 4 is unplugged, there will not be much resistance. Figure 4 and Figure 5 As shown, the outer surface of one side of the lock buckle 203 is an exposed surface not covered by the base 201, that is, Figure 5 The outer surface of the lower side of the middle lock buckle 203 is completely exposed outside the seat body 201. The end of the lock buckle 203 used for blocking and cooperating with the lock hook 401 is defined as the front end ( Figure 5 When unlocking is required, the user can press the exposed surface portion located behind the rotation axis of the lock buckle 203, and the lock buckle 203 will rotate counterclockwise, thereby separating from the lock hook 401, and unlocking is achieved. In other words, the exposed surface portion located behind the rotation axis of the lock buckle 203 is equivalent to the unlocking structure. Further, in order to ensure the consistency of the appearance of the locking mechanism 2 and to prevent users from misunderstanding the lock, the exposed surface is flush with the end surface of the seat body 201 when in the locked position.

[0042] In other embodiments, the exposed surface may be slightly lower than the end surface of the base 201. In order to facilitate the user to press and unlock, a protruding pressing handle can be provided on the exposed surface, and the unlocking structure is a pressing handle. Of course, the unlocking structure is not limited to the above two types. As long as it can withstand external force and can provide the lock buckle 203 with a torque that causes the lock buckle 203 to rotate in the direction of the unlocking position, any related structure connected to the lock buckle 203 can play the role of unlocking.

[0043] like Figure 3 As shown, the lock buckle 203 is a snap-lock type lock buckle 203. During the insertion of the conversion plug 4, the lock hook 401 pushes and cooperates with one end of the lock buckle 203 to directly push the lock buckle 203 open. When the plug is plugged in place, the lock buckle 203 automatically returns to the locked position under the action of the elastic member, which is convenient for the user to operate. When the lock buckle 203 returns to the locked position, a "click" sound is generated, which also provides an indication for the user to judge whether the plug is in place, avoiding over-insertion or under-insertion. Specifically, Figure 3 For example, one end of the lock hook 401 is provided with a slope, and one end of the lock buckle 203 is provided with a sliding part for sliding along the slope, and in order to reduce the insertion resistance, the contact fit between the sliding part and the slope is a line-surface contact fit. In other embodiments, the positions of the slope and the sliding part can be interchanged.

[0044] Since an unlocking mechanism is provided, in other embodiments, the lock 203 may not be a latch-lock type lock 203. When inserting the conversion plug 4, the lock 203 can be manually kept in the unlocked position. After being inserted into place, the lock 203 can be automatically returned to the locked position by releasing the hand.

[0045] Furthermore, if Figure 3 and Figure 5 As shown, the seat body 201 is an embedded seat body embedded in the housing 1. In this way, when assembling, the lock buckle 203 can be installed on the seat body 201 through the rotating shaft 204 to form an independent module, and then the seat body 201 can be installed into the housing 1. This is simple and efficient to install, and the overall structure is more compact. Under the restriction of the housing 1, the seat body 201 is also relatively stable, and the rotating shaft 204 is not easy to be accidentally withdrawn. In other embodiments, the seat body 201 can also be a non-embedded seat body 201. For example, the seat body 201 can be installed on the outer surface of the housing 1. In this case, the size and rotation stroke of the lock buckle 203 need to be increased to meet the requirement that it can move to the locking position that is blocked and matched with the lock hook 401.

[0046] On the basis that the seat body 201 is an embedded seat body, the seat body 201 and the housing 1 are preferably connected by an elastic buckle, so that during installation, as the elastic buckle is released, the seat body 201 and the housing 1 can be directly locked, which is convenient and efficient. Of course, in other embodiments, using fastening screws to connect the seat body 201 and the housing 1 is also a feasible solution. As another feasible solution, the seat body and the housing 1 can be integrated, that is, there is a part on the housing 1 for installing the lock buckle 203, and this part forms the seat body. Of course, at this time, the seat body and the housing are still relatively fixed.

[0047] At the same time, a positioning structure is also provided between the seat body 201 and the housing 1, specifically, as Figure 1As shown, the seat body 201 is provided with a plurality of positioning protrusions, and the housing 1 is provided with positioning grooves that match the positioning protrusions. When installing, the positioning protrusions can be inserted into the positioning grooves, which can improve the installation accuracy of the seat body 201 on the one hand, and improve the stability of the seat body 201 on the other hand. Of course, the positions of the positioning protrusions and the positioning grooves can be interchanged, that is, the positioning protrusions are provided on the housing 1, and the positioning grooves are provided on the seat body 201.

[0048] As a convenient implementation method, the elastic member is selected as a compression spring 202, such as Figure 3 and Figure 5 As shown, the two ends of the compression spring 202 are respectively in contact with the seat body 201 and the lock buckle 203. Of course, the elastic member can also be a tension spring or a tension rope, etc. The two ends of the tension spring should be connected to the seat body 201 and the lock buckle 203 respectively, and the position of the tension spring should be set at Figure 3 The left side of the rotating shaft 204. The elastic member can also be a torsion spring, which is arranged between the rotating shaft 204 and the seat body 201.

[0049] On the basis that the elastic member is a compression spring 202, as Figure 3 and Figure 5 As shown, the lock buckle 203 is provided with a guide post, the seat body 201 is provided with a guide groove, one end of the compression spring 202 is sleeved on the guide post, and the other end is arranged in the guide groove, which can guide the compression and extension of the compression spring 202 to prevent the compression spring 202 from twisting to one side after being compressed. Of course, the positions of the guide post and the guide groove can also be interchanged, that is, the guide post is arranged on the seat body 201, and the guide groove is arranged on the lock buckle 203. In other embodiments, the guide post and the guide groove may not be arranged, and in this case, a compression spring with stronger rigidity can be selected.

[0050] Specific embodiment of the control box of the portable charger for vehicle in the utility model:

[0051] The embodiment of the control box of the portable vehicle charger is the control box described in the embodiment of the portable vehicle charger described above, and will not be described in detail here.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A control box for a portable charger for a vehicle, comprising a housing (1), characterized in that: A locking mechanism (2) is provided on the housing (1), the locking mechanism (2) comprising a seat body (201) fixed relative to the housing (1) and a lock buckle (203) rotatably mounted on the seat body (201), the lock buckle (203) having a locking position for blocking and cooperating with a lock hook (401) on a conversion plug (4) and an unlocking position for separating from the lock hook (401) on the conversion plug (4) in its rotation stroke, the lock buckle (203) being provided with an elastic member for automatically returning to the locking position and an unlocking structure for bearing an external force to convert the lock buckle (203) from the locking position to the unlocking position.

2. The control box of the portable charger for vehicle according to claim 1, characterized in that: The lock buckle (203) is a latch-lock type lock buckle (203), and one end of the lock buckle (203) is used for pushing and matching with the lock hook (401) of the conversion plug (4).

3. The control box of the portable charger for vehicle according to claim 1 or 2, characterized in that: One side surface of the lock buckle (203) is an exposed surface not covered by the seat body (201), and the end of the lock buckle (203) used for blocking and cooperating with the lock hook (401) on the conversion plug (4) is defined as the front end, and the part of the exposed surface located behind the rotation axis of the lock buckle (203) forms the unlocking structure.

4. The control box of the portable charger for vehicle according to claim 3, characterized in that: When in the locked position, the exposed surface is flush with the end surface of the seat body (201).

5. The control box of the portable charger for vehicle according to claim 1 or 2, characterized in that: The seat body (201) is an embedded seat body (201) embedded in the wall of the housing (1).

6. The control box of the portable charger for vehicle according to claim 5, characterized in that: The seat body (201) is fixedly matched with the shell body (1) via an elastic buckle.

7. The control box of the portable charger for vehicle according to claim 5, characterized in that: One of the seat body (201) and the shell body (1) is provided with a positioning protrusion, and the other is provided with a positioning groove for the positioning protrusion to be inserted into.

8. The control box of the portable charger for vehicle according to claim 1 or 2, characterized in that: The elastic member is a compression spring (202), one end of the compression spring (202) is in contact with the lock buckle (203), and the other end of the compression spring (202) is in contact with the seat body (201).

9. The control box of the portable charger for vehicle according to claim 8, characterized in that: One of the lock buckle (203) and the seat body (201) is provided with a guide column, and the other is provided with a guide groove. One end of the compression spring (202) is sleeved on the guide column, and the other end is arranged in the guide groove.

10. A portable charger for a vehicle, including a control box, characterized in that: The control box is the control box of the portable vehicle charger according to any one of claims 1 to 9.

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