A high voltage connector locking device

Abstract

The invention discloses a high-voltage connector locking device, comprising a male connector and a female connector, wherein the male connector is provided with a first buckle, and the female connector comprises a first locking tongue having a first card slot matched with the first buckle, and a second card slot is also provided on the locking tongue, and the second card slot is located behind the first card slot; a second locking tongue having a second buckle matched with the second card slot, and a stopper is provided at the rear of the second locking tongue; a rear cover abutting the rear of the second locking tongue so that the second buckle is located in the middle of the first card slot and the second card slot when in a free state; a rotating push rod, and the rotating push rod comprises a prying rod that can pry up the first locking tongue to separate the first buckle of the locking tongue from the first card slot, and a locking block that can abut the stopper so that the second buckle of the second locking tongue is maintained in the second card slot. The invention realizes secondary locking, is easy to install, prevents accidental disconnection and prevents misoperation, and is a small and low-cost connector.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage connection, and in particular to a locking device for a high-voltage connector. Background Art

[0002] At present, vehicles such as pure electric vehicles (BEV), plug-in hybrid electric vehicles (PHEV), and mild hybrid electric vehicles (MHEV) all contain high-voltage batteries and high-voltage connection components. The high-voltage connector contains high-voltage connection components. The connection needs to ensure a certain stability. If the unlocking operation is too simple, it may cause misoperation and lead to danger.

[0003] Based on this, the existing technology still needs to be improved. Summary of the invention

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a high-voltage connector locking device.

[0005] On the one hand, a high-voltage connector locking device disclosed in an embodiment of the present invention includes a male connector and a female connector, wherein a first buckle is provided on an outer wall of the male connector.

[0006] The female connector comprises:

[0007] A first locking tongue having a first slot matched with the first buckle, wherein the locking tongue is further provided with a second slot, and the second slot is located behind the first slot;

[0008] A second locking tongue having a second buckle matched with the second locking slot, wherein a stopper is arranged at the rear of the second locking tongue;

[0009] A rear cover elastically abutting against the rear portion of the second locking tongue so that the second buckle of the second locking tongue is located in the middle of the first and second locking slots when in a free state;

[0010] A rotating push rod is rotatably connected to both sides of the first locking tongue, wherein the rotating push rod includes a pry bar that can pry up the first locking tongue to separate the first buckle of the locking tongue from the first slot, and a locking block that can abut the stopper to maintain the second buckle of the second locking tongue in the second slot.

[0011] Furthermore, the female connector also includes a shell, a partition is arranged in the shell, the first locking tongue and the second locking tongue are placed on the partition, and the first card slot of the first locking tongue extends out of the partition, and a rotating part and a fixed part are arranged on the partitions on both sides of the first locking tongue from front to back in sequence, the rotating push rod is rotatably mounted on the rotating part, and the rear part of the first locking tongue is fixed to the fixed part.

[0012] Furthermore, the first locking tongue includes a fixing portion, an extension piece and a first body connected in sequence, wherein there are two fixing portions, which are respectively mounted on the fixing portions on both sides of the baffle, and the two fixing portions extend obliquely to form an extension piece, so that a first gap is provided between the first body and the baffle for the front end of the second locking tongue to enter, and the first card slot and the second card slot are arranged on the first body.

[0013] Further, the width of the second locking tongue is smaller than the distance between the two fixing parts of the first locking tongue, so that the second locking tongue can slide between the two fixing parts, and,

[0014] The second locking tongue comprises a second body, a second buckle and a stopper, wherein the second buckle is located at the front end of the second body, and the stopper is formed by extending upward along the rear end of the second body.

[0015] Furthermore, the rotating push rod includes a rotating shaft, a pry bar, a connecting rod, a connecting piece and a locking block, wherein:

[0016] There are two rotating shafts, which are rotatably mounted on the rotating parts on both sides of the first locking tongue.

[0017] The pry bar is fixed on the rotating shaft and is located at the lower part of the first locking tongue. When the rotating push rod rotates to the first position, the pry bar pries up the front end of the first locking tongue.

[0018] There are two connecting rods, one end of which is connected to the two rotating shafts respectively, and the other end is connected to the connecting member. The locking block is located at the rear end of the connecting member and extends downward along the rear end of the connecting member. When the rotating push rod rotates to the second position, the locking block abuts against the stopper.

[0019] Furthermore, an operating opening is provided on the housing so that the rotating push rod can rotate through the operating opening.

[0020] Further, the male connector includes an insertion portion, and the first buckle is located on an outer wall of the insertion portion;

[0021] The housing includes a front shell and a rear shell, the front shell forms a first accommodating cavity for accommodating the inserting portion, and the partition is disposed in the rear shell.

[0022] Furthermore, the rear cover includes a cover body and an elastic member, wherein the elastic member is disposed at the rear portion of the cover body and is used for elastically abutting against the rear end of the second locking tongue.

[0023] Furthermore, a slideway is arranged on the partition, and the slideway is located below the first locking tongue. A slide groove adapted to the slideway is arranged at the bottom of the second locking tongue.

[0024] Furthermore, an opening is provided on the connecting member adjacent to the locking block, and a third buckle is provided on the locking block, and the third buckle is located directly below the opening.

[0025] On the other hand, a vehicle disclosed in an embodiment of the present invention includes the above-mentioned high-voltage connector locking device.

[0026] By adopting the above technical solution, the present invention has at least the following beneficial effects:

[0027] The high-voltage connector locking device of the present invention realizes secondary locking through the combined action of the first locking tongue, the second locking tongue and the rotating push rod, is easy to install, prevents accidental disconnection and prevents misoperation, and is a small and low-cost connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An exploded view of a high-voltage connector locking device disclosed in one embodiment of the present invention;

[0030] Figure 2 This is a position state diagram of a high-voltage connector locking device disclosed in an embodiment of the present invention when it is not installed;

[0031] Figure 3 A state diagram of a male connector of a high-voltage connector locking device disclosed in an embodiment of the present invention after insertion;

[0032] Figure 4 A state diagram of a high-voltage connector locking device disclosed in an embodiment of the present invention when locked;

[0033] Figure 5 This is a state diagram of a locking mechanism of a high-voltage connector locking device disclosed in an embodiment of the present invention when the male connector is disconnected.

[0034] Figure 6 A schematic diagram of the structure of a first locking tongue of a high-voltage connector locking device disclosed in an embodiment of the present invention;

[0035] Figure 7 , Figure 8 A schematic diagram of the second locking tongue structure of a high-voltage connector locking device disclosed in an embodiment of the present invention;

[0036] Fig. 9A schematic diagram of the structure of a rotary push rod of a high-voltage connector locking device disclosed in an embodiment of the present invention;

[0037] Fig.10 A schematic diagram of the housing structure of a high-voltage connector locking device disclosed in an embodiment of the present invention;

[0038] Fig.11 A schematic diagram of the rear cover structure of a high-voltage connector locking device disclosed in an embodiment of the present invention;

[0039] Fig.12 The present invention is a schematic structural diagram of a combination of a housing and a rear cover of a high-voltage connector locking device disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0041] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0042] like Figure 1-Figure 5 , Figure 6 ,, Figure 7 , Fig. 9 and Fig.11 As shown, some embodiments of the present invention disclose a high-voltage connector locking device, which includes a male connector 100 and a female connector 200. The outer wall of the male connector 100 is provided with a first buckle 111.

[0043] The female connector 200 comprises:

[0044] A first locking tongue 210 having a first locking slot 211 matched with the first buckle 111, and a second locking slot 212 is further provided on the locking tongue, and the second locking slot 212 is located behind the first locking slot 211;

[0045] A second locking tongue 220 having a second buckle 222 matched with the second locking groove 212, and a stopper 223 is arranged at the rear of the second locking tongue 220;

[0046] A rear cover 240 elastically abutting against the rear portion of the second locking tongue 220 so that the second buckle 222 of the second locking tongue 220 is located in the middle of the first clamping slot 211 and the second clamping slot 212 when in a free state;

[0047] The rotating push rod 230 is rotatably connected to both sides of the first locking tongue 210, and the rotating push rod 230 includes a pry bar 235 that can pry up the first locking tongue 210 to separate the first locking tongue buckle 111 and the first slot 211, and a locking block 234 that can abut the blocking block 223 to maintain the second buckle 222 of the second locking tongue 220 in the second slot 212.

[0048] When in use, the first locking groove and the first buckle form a primary lock, and the locking block and the stopper form a secondary lock, thereby avoiding erroneous operation that may be caused by only a primary lock.

[0049] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Fig.11 As shown, the female connector 200 also includes a shell 250, a partition 254 is arranged in the shell 250, the first locking tongue 210 and the second locking tongue 220 are placed on the partition 254, and the first card slot 211 of the first locking tongue 210 extends out of the partition 254, and a rotating part 256 and a fixed part 255 are arranged on the partitions 254 on both sides of the first locking tongue 210 from front to back, the rotating push rod 230 is rotatably mounted on the rotating part 256, and the rear part of the first locking tongue 210 is fixed to the fixed part 255.

[0050] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Figure 6 As shown, the first locking tongue 210 includes a fixing piece 214, an extension piece 215 and a first body 213 connected in sequence, wherein the fixing pieces 214 are two and are respectively mounted on the fixing portions 255 on both sides of the baffle, and the two fixing pieces 214 extend obliquely to form an extension piece 215, so that a first gap is provided between the first body 213 and the baffle for the front end of the second locking tongue 220 to enter, and the first card slot 211 and the second card slot 212 are arranged on the first body 213.

[0051] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Figure 7 , Figure 8 As shown, the width of the second locking tongue 220 is smaller than the distance between the two fixing plates 214 of the first locking tongue 210, so that the second locking tongue 220 can slide between the two fixing plates 214, and,

[0052] The second locking tongue 220 includes a second body 221 , a second buckle 222 and a stopper 223 . The second buckle 222 is located at the front end of the second body 221 , and the stopper 223 extends upward from the rear end of the second body 221 .

[0053] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Fig. 9 As shown, the rotating push rod 230 includes a rotating shaft 231, a pry bar 235, a connecting rod 232, a connecting member 233 and a locking block 234, wherein:

[0054] The rotating shafts 231 are two and are rotatably mounted on the rotating parts 256 on both sides of the first locking tongue 210.

[0055] The pry bar 235 is fixed on the rotating shaft 231 and is located at the lower part of the first locking tongue 210. When the rotating push rod 230 rotates to the first position, the pry bar 235 pries up the front end of the first locking tongue 210.

[0056] There are two connecting rods 232, one end of which is connected to the two rotating shafts 231 respectively, and the other end is connected to the connecting member 233. The locking block 234 is located at the rear end of the connecting member 233 and extends downward along the rear end of the connecting member 233. When the rotating push rod 230 rotates to the second position, the locking block 234 abuts against the stopper 223.

[0057] And, if Fig.12 As shown, an operating opening 258 is provided on the housing 250 , so that the rotating push rod 230 can rotate through the operating opening 258 .

[0058] Specifically, the two pry bars of the rotating push rod can be set on the inner side of the two rotating shafts, the width of the second lock tongue is slightly smaller than the distance between the two pry bars, and the two pry bars are located below the first body outside the first slot and the second slot of the first lock tongue. When the rotating push rod rotates, the ends of the pry bars are tilted upward, and are tilted up by the two sides of the bottom of the first lock tongue.

[0059] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Figure 1 , Fig.10 , Fig.12 As shown, the male connector 100 includes an insertion portion 110, and the first buckle 111 is located on the outer wall of the insertion portion 110;

[0060] The housing 250 includes a front shell 251 and a rear shell 252 . The front shell 251 forms a first accommodating cavity 253 for accommodating the inserting portion 110 . The partition plate 254 is disposed in the rear shell 252 .

[0061] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Fig.11As shown, the rear cover 240 includes a cover body 241 and an elastic member 242 . The elastic member 242 is disposed at the rear of the cover body 241 to elastically abut against the rear end of the second locking tongue 220 .

[0062] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Fig.10 , Figure 8 As shown, a slideway 257 is provided on the partition 254 , and the slideway 257 is located below the first locking tongue 210 . A slide groove 224 adapted to the slideway 257 is provided at the bottom of the second locking tongue 220 .

[0063] The high-voltage connector locking device disclosed in some embodiments of the present invention is based on the above embodiments, such as Fig.12 , Fig. 9 As shown, an opening 236 is provided on the connecting member 233 adjacent to the locking block 234 , and a third buckle 237 is provided on the locking block 234 . The third buckle 237 is located directly below the opening 236 .

[0064] By using the high-voltage connector locking device disclosed in the present invention, when the male connector is not inserted, Figure 2 As shown, in this state, the second lock tongue 220 is maintained at the front position under the action of the spring sheet (elastic member 242) inside the rear cover. At this time, the rotating push rod 230 is slightly tilted upward due to the position of the second lock tongue 220 and cannot be pressed down to lock. At the same time, the pry bar 235 of the rotating push rod 230 is in contact with the first lock tongue 210 but does not affect each other.

[0065] The male connector insertion status and locking status are as follows Figure 3 , Figure 4 As shown, in this state, the first buckle 111 of the male connector 100 is inserted into the first slot 211 of the first locking tongue 210 of the female connector, and the male connector pushes the second locking tongue 220 to move backward. At this time, the push rod 230 can be pressed down to lock.

[0066] The locking mechanism is open and the male connector is disconnected. Figure 5 As shown, in this state, the third buckle 237 needs to be pried open from the opening on the rotating push rod 230 with the help of a tool to unlock the secondary lock. Figure 3 Then continue to push the rotating push rod 230 upward, the pry bar 235 of the rotating push rod 230 pries the first locking tongue 210, the front end of the first locking tongue 210 tilts up, the constraint of the first slot and the first buckle of the first locking tongue 210 disappears, the female connector can be pulled out, and at the same time, as the female connector is pulled out, the second locking tongue moves forward under the action of the elastic member, and the connector is disconnected.

[0067] It should be particularly pointed out that the various components or steps in the above-mentioned embodiments can be cross-linked, replaced, added, or deleted with each other. Therefore, the combinations formed by these reasonable arrangements and combinations should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should not be limited to the embodiments.

[0068] The above are exemplary embodiments disclosed in the present invention. The order disclosed in the above embodiments of the present invention is for description only and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope disclosed in the embodiments of the present invention (including the claims) is limited to these examples. Various changes and modifications may be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0069] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A high voltage connector locking device, characterized in that: It comprises a male connector and a female connector, wherein a first buckle is arranged on the outer wall of the male connector. The female connector comprises: A first locking tongue having a first slot matched with the first buckle, wherein the locking tongue is further provided with a second slot, and the second slot is located behind the first slot; A second locking tongue having a second buckle matched with the second locking slot, wherein a stopper is arranged at the rear of the second locking tongue; A rear cover elastically abutting against the rear portion of the second locking tongue so that the second buckle of the second locking tongue is located in the middle of the first and second locking slots when in a free state; A rotating push rod is rotatably connected to both sides of the first locking tongue, wherein the rotating push rod includes a pry bar that can pry up the first locking tongue to separate the first buckle of the locking tongue from the first slot, and a locking block that can abut the stopper to maintain the second buckle of the second locking tongue in the second slot.

2. The device according to claim 1, characterized in that The female connector also includes a shell, a partition is arranged in the shell, the first locking tongue and the second locking tongue are placed on the partition, and the first card slot of the first locking tongue extends out of the partition, and the partitions on both sides of the first locking tongue are sequentially arranged with a rotating part and a fixed part from front to back, the rotating push rod is rotatably mounted on the rotating part, and the rear part of the first locking tongue is fixed to the fixed part.

3. The device according to claim 2, characterized in that The first locking tongue includes a fixing plate, an extension plate and a first body connected in sequence, wherein there are two fixing plates, which are respectively mounted on the fixing parts on both sides of the baffle, and the two fixing plates extend obliquely to form an extension plate, so that a first gap is provided between the first body and the baffle for the front end of the second locking tongue to enter, and the first card slot and the second card slot are arranged on the first body.

4. The device according to claim 2, characterized in that The width of the second locking tongue is smaller than the distance between the two fixing plates of the first locking tongue, so that the second locking tongue can slide between the two fixing plates, and, The second locking tongue comprises a second body, a second buckle and a stopper, wherein the second buckle is located at the front end of the second body, and the stopper is formed by extending upward along the rear end of the second body.

5. The device according to claim 2, characterized in that The rotating push rod includes a rotating shaft, a pry bar, a connecting rod, a connecting piece and a locking block, wherein: There are two rotating shafts, which are rotatably mounted on the rotating parts on both sides of the first locking tongue. The pry bar is fixed on the rotating shaft and is located at the lower part of the first locking tongue. When the rotating push rod rotates to the first position, the pry bar pries up the front end of the first locking tongue. There are two connecting rods, one end of which is connected to the two rotating shafts respectively, and the other end is connected to the connecting member. The locking block is located at the rear end of the connecting member and extends downward along the rear end of the connecting member. When the rotating push rod rotates to the second position, the locking block abuts against the stopper. Furthermore, an operating opening is provided on the housing so that the rotating push rod can rotate through the operating opening.

6. The device according to claim 2, characterized in that The male connector comprises an insertion portion, and the first buckle is located on an outer wall of the insertion portion; The housing includes a front shell and a rear shell, the front shell forms a first accommodating cavity for accommodating the inserting portion, and the partition is disposed in the rear shell.

7. The device according to claim 6, characterized in that The rear cover comprises a cover body and an elastic member, wherein the elastic member is arranged at the rear of the cover body and is used for elastically abutting against the rear end of the second locking tongue.

8. The device according to claim 2, characterized in that The partition is provided with a slideway, the slideway is located below the first locking tongue, and the bottom of the second locking tongue is provided with a slide groove adapted to the slideway.

9. The device according to claim 5, characterized in that An opening is arranged on the connecting member at a position adjacent to the locking block, and a third buckle is arranged on the locking block, and the third buckle is located directly below the opening.

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