A high waterproof large power DC charging gun

Abstract

The present invention proposes a high-power DC charging gun with high waterproofness, including a shell, a plug, a main chamber, a cable chamber and a control chamber in the shell, an electromagnetic lock in the control chamber, an unlocking hole in communication with the control chamber at the rear of the shell, a sealing plug in the unlocking hole, an unlocking slide in communication with the inner wall of the unlocking hole in the shell, an unlocking slider supported by an elastic member and sliding toward the inner wall of the unlocking hole in the unlocking slide, a locking groove in the outer wall of the sealing plug, a blocking groove in communication with the unlocking slide in the outer wall of the shell, a sealing plug in the blocking groove, a toggle portion in the side of the unlocking slider facing the blocking groove, and a toggle groove in the outer wall of the sealing plug near the opening of the unlocking hole. The present invention has the advantages of simple structure, convenient installation, quick unlocking in a power-off state, and guaranteed sealing, so that its waterproof grade reaches IP67.

Description

Technical Field

[0001] The present invention relates to the field of charging guns, and in particular to a high-power direct current charging gun with high waterproofness. Background Art

[0002] With the increasing promotion of new energy electric vehicles, more and more car owners use new energy electric vehicles. During the daily charging process of electric car owners, due to some reasons, the charging gun is locked to the car, and the vehicle cannot be driven away normally, which brings great inconvenience to travel; the reason for this phenomenon is that in order to ensure the charging safety of the vehicle, the state has standardized the vehicle charging process. The national standard GBT 20234.1-2015 stipulates that the charging interface should have a locking function to prevent accidental disconnection during charging. For the vehicle interface of DC charging, an electronic locking device is installed on the vehicle plug to prevent the vehicle interface from being disconnected under load; since the electronic locking device relies on electricity to work, once the power grid is cut off, the electronic locking device cannot be unlocked; the buttons or holes used by general charging guns to manually unlock the electronic locking device are designed to be more concealed and complex in structure, considering the safety and sealing and waterproofness during daily use, and are also more inconvenient to unlock; and its waterproof level is also low. Summary of the invention

[0003] Based on the above problems, the purpose of the present invention is to provide a high-power DC charging gun with a simple structure, easy installation, and the ability to be quickly unlocked when the power is off, while ensuring sealing so that its waterproof grade reaches IP67.

[0004] In view of the above problems, the following technical solutions are provided: a highly waterproof high-power DC charging gun, comprising a shell, a plug, a main chamber, a cable chamber and a control chamber in the shell, an electromagnetic lock in the control chamber, an unlocking hole connected to the control chamber at the rear of the shell, a sealing plug for blocking the unlocking hole in the unlocking hole, an unlocking slide connected to the inner wall of the unlocking hole in the shell, an unlocking slider supported by an elastic part and sliding toward the inner wall of the unlocking hole in the unlocking slide, a locking groove for inserting the unlocking slider in the outer wall of the sealing plug, a blocking groove connected to the unlocking slide in the outer wall of the shell, a sealing plug in the blocking groove, a toggle portion in the side of the unlocking slider facing the blocking groove; a toggle groove is provided on the outer wall of the sealing plug near the opening of the unlocking hole.

[0005] In the above structure, the unlocking hole is in the shape of a cone, with its cone tip facing the control room, and the sealing plug is also in the shape of a cone. When unlocking is required, the sealing plug is pushed open to expose the sealing groove. At this time, a key or other object is passed through the sealing groove and pressed against the toggle part to push the unlocking slider to slide to the side away from the sealing plug to make it disengage from the locking groove and unlock the sealing plug. The unlocking hole can be exposed by pulling the toggle groove out of the sealing plug, and then the user can manually unlock the electromagnetic lock in the control room through the unlocking hole. This locking method directly locks the unlocking slider and is equipped with a sealing plug to assist in preventing the unlocking slider from being accidentally unlocked. It can effectively ensure the sealing of the sealing plug, effectively avoid the occurrence of accidental loss of the sealing plug, and also provide reliable protection for improving the sealing of the charging gun, so that its waterproof grade reaches IP67.

[0006] The present invention is further configured such that a plug hole communicating with the control chamber is provided at the bottom of the unlocking hole, and a plug column inserted into the plug hole is provided at one end of the sealing plug facing the control chamber.

[0007] In the above structure, the plug hole and the plug column are sealed by interference fit, achieving double sealing for waterproofing.

[0008] The present invention is further configured such that an auxiliary sealing ring is provided on the plug column, and both end surfaces of the auxiliary sealing ring respectively abut against the bottom of the unlocking hole and the end surface of the sealing plug.

[0009] In the above structure, the auxiliary sealing ring can provide auxiliary pushing force when the sealing plug is unlocked through its own elastic sealing, so that the user can take out the sealing plug easily.

[0010] The present invention is further configured such that the sealing plug and the sealing plug are both made of rubber material.

[0011] In the above structure, the sealing plug made of rubber material can effectively ensure the sealing performance, and the sealing plug can be effectively fixed in the sealing groove by interference fit with the sealing groove, and can also provide a waterproof effect for the unlocking slider located in the unlocking slide.

[0012] The present invention is further configured to include a blocking pin located at one end of the blocking groove and arranged through the two side walls of the blocking groove. One end of the blocking plug is pin-connected to the blocking pin so that the other end can be opened toward the outside of the blocking groove.

[0013] In the above structure, the sealing pin can effectively prevent the sealing plug from being lost and is also convenient for reinstalling the sealing plug.

[0014] The present invention is further configured such that one end of the sealing plug that is pin-connected with the sealing pin faces the sealing plug and is adjacent to the sealing plug.

[0015] In the above structure, the end of the sealing plug away from the sealing plug can be opened, the space layout can be effectively utilized, and sufficient activity space can be provided for keys and other objects when the unlocking slider is pushed by keys and other objects.

[0016] The present invention is further configured such that one end of the unlocking slideway facing away from the unlocking hole is provided with a spring cavity, and the elastic member is a spring that supports between the inner wall of the spring cavity and the unlocking slider and pushes the unlocking slider towards the unlocking hole.

[0017] In the above structure, the unlocking slider is pushed by a spring and thus inserted into the locking groove.

[0018] The present invention is further configured such that a notch is provided at the top of the outer shell, the control chamber is located within the notch, a sealing groove surrounding the notch is provided at the end face of the notch, and a sealing ring is provided within the sealing groove; further included is a sealing cover covering the notch and sealingly cooperating with the sealing ring; the sealing cover includes a flexible pressing cap, a pressing cap support skeleton, and an unlocking swing rod, the sealing cover is provided with a pressing hole for placing the flexible pressing cap, the outer edge of the flexible pressing cap is clamped between the pressing cap support skeleton and the outer edge of the pressing hole on the side of the sealing cover facing the control chamber, and the other side of the pressing cap support skeleton abuts against the end face of the notch; one end of the unlocking swing rod is provided with a button, the other end is provided with a locking hook, the middle section of the unlocking swing rod is hinged to the sealing cover, the button is located within the flexible pressing cap, and a rubber sealing partition is provided on the unlocking swing rod between the hinge of the unlocking swing rod and the sealing cover and the locking hook, and the rubber sealing partition is clamped between the notch and the sealing cover.

[0019] In the above structure, in addition to the unlocking hole, the unlocking swing rod of the charging gun is also a movable component. Therefore, to meet the requirement of an IP67 waterproof rating, the provided sealing cover is sealed using a sealing ring, and at the same time, a flexible pressing cap is used to separate the button from direct conduction to the outside, and a rubber sealing partition provides a swinging space for the locking hook end of the unlocking swing rod while ensuring the sealing of the control chamber.

[0020] The present invention is further configured such that the outer shell is further provided with an exhaust duct connected to the control chamber, and an exhaust valve is provided within the exhaust duct.

[0021] In the above structure, when the charging gun is operating, it will cause the internal temperature to rise and discharge the excess air inside to ensure the internal is dry and clean. The exhaust valve is preferably a one-way valve.

[0022] The present invention is further configured such that the outer shell is provided with a holding portion, patch slots are provided on both sides of the holding portion, holding patches are provided on the patch slots, and the unlocking slideway and the spring cavity are connected to the bottom of the patch slots.

[0023] In the above structure, the spring and the unlocking slider are inserted from the patch slots on the side of the holding portion, ensuring the simplicity and reliability of the structure.

[0024] The beneficial effects of the present invention are as follows: the unlocking hole is in the shape of a cone, with its cone tip facing the control room, and the sealing plug is also in the shape of a cone. When unlocking is required, the sealing plug is pushed open to expose the sealing groove. At this time, a key or other object is passed through the sealing groove and pressed against the toggle part to push the unlocking slider to slide to the side away from the sealing plug to make it disengage from the locking groove and unlock the sealing plug. The unlocking hole can be exposed by pulling the toggle groove out of the sealing plug, and then it is convenient for the user to manually unlock the electromagnetic lock in the control room through the unlocking hole; this locking method directly locks the unlocking slider and is equipped with a sealing plug to assist in preventing the unlocking slider from being accidentally unlocked, which can effectively ensure the sealing of the sealing plug, effectively avoid the occurrence of situations such as accidental loss of the sealing plug, and also provide reliable protection for improving the sealing of the charging gun, so that its waterproof grade reaches IP67. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 It is a schematic diagram of the notch structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the explosion structure of the sealing cover of the present invention.

[0028] Figure 4 It is a schematic diagram of the full-section explosion structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the full cross-section structure of the present invention.

[0030] Figure 6 It is a schematic diagram of the full-section explosion structure of the shell of the present invention.

[0031] Figure 7 It is a schematic diagram of the full cross-section structure of the shell of the present invention.

[0032] Meaning of the numbers in the figure: 10-housing; 100-gripping part; 1001-patch slot; 1002-gripping patch; 101-main chamber; 102-cable chamber; 103-control chamber; 104-unlocking hole; 1041-plug hole; 105-unlocking slide; 1051-elastic member; 1052-unlocking slider; 10521-sliding part; 106-blocking groove; 107-spring chamber; 108-notch; 1081-sealing groove; 1082-sealing ring; 109-exhaust duct; 11-plug; 12-sealing plug; 121-locking groove; 122-sliding groove; 123-plug; 124-auxiliary sealing ring; 13-sealing plug; 131-sealing pin; 14-sealing cover; 140-pressing hole; 141-flexible pressing cap; 142-pressing cap supporting frame; 143-unlocking rocker; 1431-button; 1432-locking hook; 15-rubber sealing partition. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] refer to Figures 1 to 7 ,like Figures 1 to 7 The high-power DC charging gun with high waterproofness shown in the figure includes a shell 10, a plug 11, a main chamber 101, a cable chamber 102 and a control chamber 103 are arranged in the shell 10, an electromagnetic lock (not shown in the figure) is arranged in the control chamber 103, an unlocking hole 104 connected to the control chamber 103 is arranged at the rear of the shell 10, a sealing plug 12 for blocking the unlocking hole 104 is arranged in the unlocking hole 104, the shell 10 is also provided with an unlocking slide 105 connected to the inner wall of the unlocking hole 104, and the unlocking slide 105 is provided with a sealing plug 12 for blocking the unlocking hole 104. An unlocking slider 1052 is provided which is supported by an elastic member 1051 and slides toward the inner wall of the unlocking hole 104. A locking groove 121 is provided on the outer wall of the sealing plug 12 for inserting the unlocking slider 1052. A blocking groove 106 which is connected to the unlocking slide 105 is further provided on the outer wall of the shell 10. A sealing plug 13 is provided in the blocking groove 106. A toggle portion 10521 is provided on the side of the unlocking slider 1052 which faces the blocking groove 106. A toggle groove 122 is provided on the outer wall of the sealing plug 12 near the opening of the unlocking hole 104.

[0035] In the above structure, the unlocking hole 104 is in the shape of a cone, with its cone tip facing the control room 103, and the sealing plug 12 is also in the shape of a cone. When unlocking is required, the sealing plug 13 is pushed open to expose the sealing groove 106. At this time, a key or other object is passed through the sealing groove 106 and pressed against the toggle portion 10521 to push the unlocking slider 1052 to slide to the side away from the sealing plug 12 to make it disengage from the locking groove 121 and unlock the sealing plug 12. The unlocking hole 104 can be exposed by pulling the toggle groove 122 out to pull out the sealing plug 12, and then it is convenient for the user to manually unlock the electromagnetic lock in the control room 103 through the unlocking hole 104; this locking method directly locks the unlocking slider 1052 while being equipped with the sealing plug 13 to assist in preventing the unlocking slider 1052 from being accidentally unlocked, which can effectively ensure the sealing performance of the sealing plug 12, effectively avoid the occurrence of situations such as accidental loss of the sealing plug 12, and also provide reliable protection for improving the sealing performance of the charging gun, so that its waterproof grade reaches IP67.

[0036] In this embodiment, a plug hole 1041 communicating with the control chamber 103 is provided at the bottom of the unlocking hole 104 , and a plug column 123 inserted into the plug hole 1041 is provided at one end of the sealing plug 12 facing the control chamber 103 .

[0037] In the above structure, the plug hole 1041 and the plug column 123 are sealed by interference fit, achieving double sealing for waterproofing.

[0038] In this embodiment, an auxiliary sealing ring 124 is disposed on the plug column 123 , and both end surfaces of the auxiliary sealing ring 124 abut against the bottom of the unlocking hole 104 and the end surface of the sealing plug 12 , respectively.

[0039] In the above structure, the auxiliary sealing ring 124 can provide auxiliary pushing force when the sealing plug 12 is unlocked through its own elastic sealing, so that the user can take out the sealing plug 12 easily.

[0040] In this embodiment, the sealing plug 12 and the sealing plug 13 are both made of rubber.

[0041] In the above structure, the sealing plug 12 made of rubber material can effectively ensure the sealing performance, and the sealing plug 13 can be effectively fixed in the sealing groove 106 by interference fit with the sealing groove 106, and can also provide a waterproof effect for the unlocking slider 1052 located in the unlocking slide 105.

[0042] In this embodiment, a blocking pin 131 is further included, which is located at one end of the blocking groove 106 and passes through the two side walls of the blocking groove 106 . One end of the blocking plug 13 is pinned to the blocking pin 131 so that the other end thereof can be opened toward the outside of the blocking groove 106 .

[0043] In the above structure, the sealing pin 131 can effectively prevent the sealing plug 13 from being lost, and is also convenient for reinstalling the sealing plug 13.

[0044] In this embodiment, one end of the sealing plug 13 that is pinned to the sealing pin 131 faces the sealing plug 12 and is adjacent to the sealing plug 12 .

[0045] In the above structure, the end of the sealing plug 13 away from the sealing plug 12 can be opened, the space layout can be effectively utilized, and sufficient movement space can be provided for keys and other items when the unlocking slider 1052 is pushed by keys and other items.

[0046] In this embodiment, a spring cavity 107 is provided at one end of the unlocking slide 105 facing away from the unlocking hole 104 , and the elastic member 1051 is a spring supported between the inner wall of the spring cavity 107 and the unlocking slider 1052 to push the unlocking slider 1052 toward the unlocking hole 104 .

[0047] In the above structure, the unlocking slider 1052 is pushed by a spring to be inserted into the locking groove 121 .

[0048] In this embodiment, the top of the housing 10 is provided with a notch 108, the control chamber 103 is located in the notch 108, the end surface of the notch 108 is provided with a sealing groove 1081 arranged around the notch 108, and a sealing ring 1082 is provided in the sealing groove 1081; it also includes a sealing cover 14 covering the notch 108 and sealingly cooperating with the sealing ring 1082; the sealing cover 14 includes a flexible pressing cap 141, a pressing cap support frame 142, and an unlocking rocker 143, the sealing cover 14 is provided with a pressing hole 140 for placing the flexible pressing cap 141, and the outer edge of the flexible pressing cap 141 is clamped on the pressing cap support frame 142. Between the skeleton 142 and the outer edge of the pressing hole 140 on the side of the sealing cover 14 facing the control chamber 103, the other side of the pressing cap supporting skeleton 142 is against the end face of the slot 108; one end of the unlocking rocker 143 is provided with a button 1431, and the other end is provided with a locking hook 1432, the middle section of the unlocking rocker 143 is hinged to the sealing cover 14, the button 1431 is located in the flexible pressing cap 141, and a rubber sealing partition 15 is provided on the unlocking rocker 143 between the hinge between the unlocking rocker 143 and the sealing cover 14 and the locking hook 1432, and the rubber sealing partition 15 is clamped between the slot 108 and the sealing cover 14.

[0049] In the above structure, in addition to the unlocking hole 104, the unlocking rocker arm 143 of the charging gun is also a movable part. Therefore, in order to achieve the waterproof level requirement of IP67, the sealing cover 14 is sealed with a sealing ring 1082, and is equipped with a flexible pressing cap 141 to separate the button 1431 from direct conduction with the outside world, and a rubber sealing partition 15 is used to provide a swinging space for the lock hook 1432 end of the unlocking rocker arm 143 while ensuring the sealing inside the control room 103.

[0050] In this embodiment, the housing 10 is further provided with an exhaust passage 109 connected to the control chamber 103 , and an exhaust valve (not shown in the figure) is provided in the exhaust passage 109 .

[0051] In the above structure, when the charging gun is working, the internal temperature will rise and the excess air inside will be discharged to ensure that the interior is dry and clean. The exhaust valve is preferably a one-way valve.

[0052] In this embodiment, the housing 10 is provided with a gripping portion 100 , and patch slots 1001 are provided on both sides of the gripping portion 100 . A gripping patch 1002 is provided on the patch slot 1001 . The unlocking slide 105 and the spring cavity 107 are connected to the bottom of the patch slot 1001 .

[0053] In the above structure, the spring and the unlocking slider 1052 are installed from the patch slot 1001 on the side of the gripping portion 100 to ensure the simplicity and reliability of the structure.

[0054] The beneficial effects of the present invention are as follows: the unlocking hole 104 is in the shape of a cone, with its cone tip facing the control room 103, and the sealing plug 12 is also in the shape of a cone. When unlocking is required, the sealing plug 13 is pushed open to expose the sealing groove 106. At this time, a key or other object is passed through the sealing groove 106 and pressed against the toggle portion 10521 to push the unlocking slider 1052 to slide to the side away from the sealing plug 12 to make it disengage from the locking groove 121 and unlock the sealing plug 12. The unlocking hole 104 can be exposed by pulling the toggle groove 122 out to extract the sealing plug 12, and then it is convenient for the user to manually unlock the electromagnetic lock in the control room 103 through the unlocking hole 104; this locking method directly locks the unlocking slider 1052 while being equipped with the sealing plug 13 to assist in preventing the unlocking slider 1052 from being accidentally unlocked, which can effectively ensure the sealing performance of the sealing plug 12, effectively avoid the occurrence of situations such as accidental loss of the sealing plug 12, and also provide reliable protection for improving the sealing performance of the charging gun, so that its waterproof grade reaches IP67.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A high waterproof high-power DC charging gun, comprising a housing, a plug, a main chamber, a cable chamber and a control chamber are provided inside the housing, and an electromagnetic lock is provided inside the control chamber, characterized in that: The rear of the shell is provided with an unlocking hole connected with the control chamber, and a sealing plug is provided in the unlocking hole for blocking the unlocking hole, the shell is also provided with an unlocking slideway connected with the inner wall of the unlocking hole, and an unlocking slider is provided in the unlocking slideway, which is supported by an elastic member and slides toward the inner wall of the unlocking hole; the outer wall of the sealing plug is provided with a locking groove for inserting the unlocking slider, the outer wall of the shell is also provided with a blocking groove connected with the unlocking slideway, and a sealing plug is provided in the blocking groove, and a toggle portion is provided on a side of the unlocking slider facing the blocking groove; a toggle groove is provided on the outer wall of the sealing plug near the opening of the unlocking hole; a plug hole connected with the control chamber is provided at the bottom of the unlocking hole, and a plug column inserted in the plug hole is provided at one end of the sealing plug facing the control chamber; an auxiliary sealing ring is provided on the plug column, and both end faces of the auxiliary sealing ring are respectively abutted against the bottom of the unlocking hole and the end face of the sealing plug; A notch is provided on the top of the shell, the control chamber is located in the notch, a sealing groove is provided on the end face of the notch surrounding the notch, a sealing ring is provided in the sealing groove; it also includes a sealing cover covering the notch and sealingly cooperating with the sealing ring; the sealing cover includes a flexible pressing cap, a pressing cap supporting frame, and an unlocking rocker arm, the sealing cover is provided with a pressing hole for placing the flexible pressing cap, the outer edge of the flexible pressing cap is clamped between the pressing cap supporting frame and the outer edge of the pressing hole on the side of the sealing cover facing the control chamber, and the other side of the pressing cap supporting frame is abutted against the end face of the notch; a button is provided at one end of the unlocking rocker arm, and a lock hook is provided at the other end, the middle section of the unlocking rocker arm is hinged to the sealing cover, the button is located in the flexible pressing cap, and a rubber sealing partition is provided on the unlocking rocker arm between the hinge between the unlocking rocker arm and the sealing cover and the lock hook, and the rubber sealing partition is clamped between the notch and the sealing cover.

2. The high-power DC charging gun with high waterproof performance according to claim 1, characterized in that: The sealing plug and the sealing plug are both made of rubber.

3. A high waterproof high-power DC charging gun according to claim 1, characterized in that: It also includes a blocking pin located at one end of the blocking groove and arranged through the two side walls of the blocking groove. One end of the blocking plug is pin-connected to the blocking pin so that the other end of the blocking plug can be opened toward the outside of the blocking groove.

4. A high waterproof high-power DC charging gun according to claim 3, characterized in that: One end of the sealing plug that is pinned to the sealing pin faces toward the sealing plug and is adjacent to the sealing plug.

5. A high waterproof high-power DC charging gun according to claim 1, characterized in that: A spring cavity is provided at one end of the unlocking slideway facing away from the unlocking hole, and the elastic member is a spring supported between the inner wall of the spring cavity and the unlocking slider to push the unlocking slider toward the unlocking hole.

6. The high-power DC charging gun with high waterproof performance according to claim 1, wherein: The shell is also provided with an exhaust passage connected to the control chamber, and an exhaust valve is arranged in the exhaust passage.

7. The high-power DC charging gun with high waterproof performance according to claim 5, wherein: The housing is provided with a gripping portion, patch slots are provided on both sides of the gripping portion, gripping patches are provided on the patch slots, and the unlocking slideway and the spring cavity are connected to the bottom of the patch slots.

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