New energy charging pile convenient to maintain

Abstract

The utility model relates to a new energy charging pile convenient to maintain, which comprises a charging pile with a protection cavity and a charging gun arranged in the protection cavity, the front end of the charging gun is provided with a socket, and the protection cavity is internally provided with a first-stage spring mechanism, a second-stage spring mechanism, a first-stage electronic lock and a second-stage electronic lock. The outer contour of an ejector block in the second-stage spring mechanism is matched with a cavity opening of the protection cavity. The first-stage electronic lock limits the stroke of the top block, and the second-stage electronic lock locks the charging gun. The utility model relates to the technical field of new energy charging, after the charging gun is taken out, the top block can pop up to the cavity opening and block the cavity opening of the protection cavity, so that external adverse factors such as rainfall, sand wind and the like are prevented from invading the protection cavity, the external interference resistance of the protection device and the charging gun is effectively enhanced, the maintenance period is shortened, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy charging, and in particular to a new energy charging pile which is convenient to maintain. Background Art

[0002] The function of the charging pile is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in public buildings (public buildings, shopping malls, public parking lots, etc.) and residential parking lots or charging stations. It can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles.

[0003] When using an existing charging pile, the matching charging gun head is inconvenient to use, is not firmly connected to the plug connector, and is prone to shaking, causing the charging gun head to fall from the plug connector, causing the charging gun to be broken. However, the main structure of the charging gun is the charging socket. Damage to the charging gun will basically cause damage to the socket, increasing the maintenance cost of the charging pile and causing trouble for the normal operation of the charging pile.

[0004] In the prior art, for example, an invention patent with patent announcement number CN110406405B discloses a charging gun anti-loosening device for a new energy charging pile, including a charging gun, a charging gun fixing mechanism, a cable locking mechanism and a charging seat. The charging gun can be fixed by the charging gun fixing mechanism, so that the socket between the charging gun and the charging pile will not loosen, and the charging gun can be placed more firmly on the fixing seat, thereby improving the safety of the charging gun.

[0005] However, the prior art has the following problems:

[0006] (1) The anti-loosening device, including the gear transmission part, is exposed to the external environment and is easily affected by factors such as corrosion, oxidation and pollution, which makes the structure of the fixing device fragile and its reliability greatly reduced, and even causes the fixing device to fail;

[0007] (2) The fixing device adopts a hard connection method. For external impact or vibration, the fixing device may not provide sufficient buffering and absorption capacity, resulting in the charging gun still being loose in a vibration environment. Micro-vibration will also cause the charging socket to be constantly collided, which will greatly accelerate the failure process and further damage the socket.

[0008] Based on this, it is necessary to study a new energy charging pile that is easy to maintain. Utility Model Content

[0009] In view of this, the purpose of the utility model is to provide a new energy charging pile that is easy to maintain, which can effectively solve the problems that the charging gun and the charging pile are prone to loosening and the protective structure is prone to rust, has poor shock resistance and poor stability.

[0010] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0011] A new energy charging pile that is easy to maintain, comprising a charging pile with a protective cavity and a charging gun arranged in the protective cavity, wherein a socket is arranged at the front end of the charging gun, and a primary spring mechanism, a secondary spring mechanism, a primary electronic lock and a secondary electronic lock are arranged in the protective cavity;

[0012] The primary spring mechanism comprises a primary guide rod, a spring seat and a primary spring. The bottom of the protective cavity has a guide groove, the primary guide rod is slidably sleeved in the guide groove, the spring seat is fixed to the end of the spring guide rod, and the primary spring is sleeved on the primary guide rod;

[0013] The secondary spring mechanism comprises a secondary guide rod, a guide sleeve, a top block and a secondary spring, the spring seat has a spring cavity with a right opening, the guide sleeve is fixed at the bottom of the spring cavity, the secondary guide rod is slidably sleeved in the guide sleeve, a top block is fixed at the end of the secondary guide rod, the outer contour of the top block is adapted to the cavity opening of the protective cavity, and the secondary spring is sleeved on the secondary guide rod and located between the spring seat and the top block;

[0014] The primary electronic lock and the secondary electronic lock are both arranged in the side wall of the protective cavity, and the side wall of the charging gun is provided with a lock groove adapted to the lock tongue of the secondary electronic lock;

[0015] When the primary electronic lock is locked, its lock tongue enters the protective cavity and is located on the ejection path of the top block to prevent the top block from ejecting;

[0016] When the secondary electronic lock is locked, its lock tongue enters the protective cavity and cooperates with the lock slot to lock the charging gun.

[0017] Furthermore, the first-level electronic lock and the second-level electronic lock both include a lock tongue, a reset rod, a reset spring, a cam and a motor. The side wall of the protective cavity has multiple installation cavities, and the motor is fixed in the installation cavity; the axis of the cam is installed on the rotating shaft of the motor; one end of the reset rod is in contact with the wheel surface of the cam, and the other end is fixed with a lock tongue, and a reset spring is mounted on the reset rod.

[0018] Furthermore, the top block has a socket cavity that can accommodate the socket, and the side wall of the charging gun is provided with a collision block that is adapted to the outer end surface of the protective cavity; when the charging gun enters the protective cavity, the socket enters the socket cavity, and the collision block fits with the outer end surface of the socket cavity.

[0019] Furthermore, the side wall of the protection cavity is provided with a limiting step surface adapted to the spring seat.

[0020] Furthermore, the end of the lock tongue has an inclined surface inclined toward the inside of the protective cavity, and the lock groove on the charging gun matches the inclined surface to form an inclined surface lock groove fit.

[0021] The beneficial effects of the above technical solution are:

[0022] (1) The utility model adopts the design of a protective cavity, and places the charging gun and protection-related mechanisms inside, which can avoid the direct impact of external environments such as rain and sand on the charging gun, the charging gun socket and the protection-related mechanisms, thereby extending the life of the charging equipment. A two-stage spring mechanism and a two-stage electronic lock are used for secondary pop-up, so that after the charging gun is taken out, the top plate can pop out to the cavity opening and seal the cavity opening of the protective cavity, avoiding the invasion of adverse external factors such as rain and sand into the protective cavity, effectively reducing and effectively enhancing the ability of the protective device and the charging gun to resist external interference, and increasing the life of the equipment. In addition, the invasion of sand, rain and other factors into the protective cavity is avoided, so that the mechanisms inside the protective cavity can be effectively protected, which can not only effectively reduce the frequency of maintenance, but also facilitate later cleaning and maintenance work, thereby reducing maintenance costs.

[0023] (2) The utility model adopts a spring mechanism to provide elastic force and an electronic lock to provide limiting. The combined effect of the two limits the charging gun inside the protective cavity and keeps the charging gun stable in a vibration environment, preventing loosening caused by external vibration, thereby improving the reliability and seismic resistance of the protective structure.

[0024] (3) The utility model adopts a two-stage pop-up design for the top block. The first stage of the pop-up is mainly to release the charging gun and pop it out a certain distance first, which is used to indicate that the charging gun is in an unlocked state, which is beneficial for users to identify and remove the charging gun; and the second stage of the pop-up is mainly to place the top block at the mouth of the protective cavity and block the protective cavity. Compared with the one-stage pop-up design, it can avoid the problem that the top block has too much kinetic energy of the charging gun due to too long displacement and too long elastic acceleration time, thereby causing the charging gun to fly out due to excessive elastic force when unlocking, thereby improving the reliability and safety of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the utility model when a charging gun is inserted;

[0026] Figure 2 This is a schematic diagram of the unlocked state of only the secondary electronic lock of the utility model;

[0027] Figure 3 This is a schematic diagram of the fully unlocked state of the utility model;

[0028] Figure 4 for Figure 1A partial enlarged view of the middle A area;

[0029] Figure 5 This is a schematic diagram of the electronic lock structure.

[0030] Figure numerals: 1 is a protective cavity, 2 is a primary spring mechanism, 3 is a secondary spring mechanism, 4 is a primary electronic lock, 5 is a secondary electronic lock, 6 is a charging gun, 7 is a distance sensor, 8 is an alignment groove, 101 is a guide groove, 102 is an installation cavity, 103 is a limit step surface, 201 is a primary guide rod, 202 is a spring seat, 203 is a primary spring, 204 is a spring cavity, 301 is a secondary guide rod, 302 is a guide sleeve, 303 is a top block, 304 is a secondary spring, 305 is an insertion cavity, 401 is a lock tongue, 402 is a reset rod, 403 is a cam, 404 is a motor, 405 is a reset spring, 601 is a socket, 602 is a collision block, 603 is a lock groove, and 604 is an alignment ring. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0032] The present embodiment aims to provide a new energy charging pile that is easy to maintain, which is mainly used for storing and protecting the charging gun 6 and the socket 601 on the charging pile, and aims to solve the problems that the charging gun 6 and the charging pile are prone to loosening, and the protective structure is prone to rust, has poor shock resistance and poor stability.

[0033] A new energy charging pile that is easy to maintain, such as Figure 1 , Figure 2 and Figure 3 , including a charging pile with a protective cavity 1 and a charging gun 6 arranged in the protective cavity 1, a socket 601 is arranged at the front end of the charging gun 6, and a primary spring mechanism 2, a secondary spring mechanism 3, a primary electronic lock 4 and a secondary electronic lock 5 are arranged in the protective cavity 1.

[0034] In this embodiment, the cross-section of the maximum outer contour of the charging gun 6 is circular, and the protective cavity 1 is a chamber with a circular cross-section. The protective cavity 1 is horizontally distributed and is mainly used to accommodate the charging gun 6. Two installation cavities 102 are provided in the side wall of the protective cavity 1. The entire protective cavity 1 is divided into two halves longitudinally from the middle and spliced ​​together. The two halves of the protective cavity 1 are obtained by injection molding.

[0035] The primary spring mechanism 2 includes a primary guide rod 201, a spring seat 202 and a primary spring 203. The bottom of the protective cavity 1 has a guide groove 101. The primary guide rod 201 is slidably mounted in the guide groove 101. The spring seat 202 is a cylindrical structure. The spring seat 202 is fixed to the end of the primary guide rod 201. The diameter of the spring seat 202 is larger than the diameter of the primary guide rod 201. The primary spring 203 is mounted on the primary guide rod 201. One end of the primary spring 203 abuts against the bottom of the protective cavity 1, and the other end abuts against the end face of the spring seat 202, so that the primary guide rod 201 can pop out to the right along the guide groove 101.

[0036] Further, such as Figure 1 and Figure 3 As shown, in order to prevent the primary guide rod 201 and the secondary guide rod 301 from being excessively ejected, the side wall of the protective cavity 1 has a limit step surface 103 adapted to the outer end surface of the spring seat 202. The limit step surface 103 can limit the maximum ejection distance of the spring seat 202. When the electronic locks are all unlocked, the outer end surface of the spring seat 202 abuts against the limit step surface 103. At this time, the primary guide rod 201 is still slidably mounted in the guide groove 101, thereby preventing the primary spring mechanism 2 from being excessively ejected and detached from the guide groove 101.

[0037] The secondary spring mechanism 3 includes a secondary guide rod 301, a guide sleeve 302, a top block 303 and a secondary spring 304. The spring seat 202 has a spring cavity 204 with a right opening. The left end face of the guide sleeve 302 is fixed to the bottom of the spring cavity 204. The guide sleeve 302 has a sliding cavity inside. The right end face of the guide sleeve 302 is provided with a sliding hole connected to the sliding cavity. The diameter of the sliding hole is smaller than the sliding cavity, so that the left end of the secondary guide rod 301 is slidably sleeved in the sliding cavity of the guide sleeve 302 through the sliding hole. The left end of the secondary guide rod 301 is fixed with a limiting portion, which is located in the sliding cavity and has a diameter of The secondary guide rod 301 is larger than the sliding hole, so that the secondary guide rod 301 will not be separated from the guide sleeve 302, and the maximum pop-up stroke of the secondary guide rod 301 is limited; the end screw of the secondary guide rod 301 is fixed with a top block 303, and the maximum outer diameter of the top block 303 is adapted to the inner diameter of the cavity opening of the protective cavity 1. The secondary spring 304 is sleeved on the secondary guide rod 301, one end of which rests on the bottom of the spring cavity 204 of the spring seat 202, and the other end of which rests on the left end face of the top block 303, so that the secondary guide rod 301 can be pushed out to the right along the guide sleeve 302 under the pushing action of the secondary spring 304.

[0038] The structure of the primary electronic lock 4 and the secondary electronic lock 5 is the same. The primary electronic lock 4 includes a lock tongue 401, a reset rod 402, a reset spring 405, a cam 403 and a motor 404. The motor 404 is fixed in the installation cavity 102. The axis of the cam 403 is connected to the rotating shaft of the motor 404. One end of the reset rod 402 contacts the wheel surface of the cam 403, and the other end is fixed with the lock tongue 401. The reset spring 405 is sleeved on the reset rod 402. When the maximum diameter point of the cam 403 abuts against the reset rod 402, the lock tongue 401 extends to the maximum; when the minimum diameter point of the cam 403 abuts against the reset rod 402, the lock tongue 401 is retracted by the reset spring 405.

[0039] The primary electronic lock 4 is arranged in an installation cavity 102 in the side wall of the protective cavity 1, and the secondary electronic lock 5 is arranged in another installation cavity 102 in the side wall at the cavity opening of the protective cavity 1. The side wall of the charging gun 6 is provided with a lock groove 603 adapted to the end of the lock tongue 401 of the secondary electronic lock 5; Figure 2 When the primary electronic lock 4 is locked, its lock tongue 401 enters the protective cavity 1 and is located on the ejection path of the top block 303 to block the top block 303; Figure 3 When the primary electronic lock 4 is unlocked, the lock tongue 401 is retracted and does not block the top block 303. Figure 1 When the secondary electronic lock 5 is locked, its lock tongue 401 enters the protection cavity 1 and cooperates with the lock slot 603, as shown in FIG. Figure 2 and Figure 3 When the secondary electronic lock 5 is locked, its lock tongue 401 is retracted into the side wall of the protective cavity 1.

[0040] The motors 404 of the primary electronic lock 4 and the secondary electronic lock 5 are both controlled by the control board. A distance sensor 7 is provided at the mouth of the protective cavity 1. The distance sensor 7 can detect the distance between the inner walls of the protective cavity 1 and determine whether the charging gun 6 has been taken out by judging the detected distance value. As for determining whether the charging gun 6 has been taken out, a weight sensor, a contact sensor, etc. can also be used in combination. The function is realized in the prior art and will not be described in detail here.

[0041] Furthermore, in order to facilitate the lock tongue 401 to smoothly enter the lock slot 603, the end of the lock tongue 401 of the secondary electronic lock 5 has an inclined surface inclined toward the inside of the protective cavity 1, and the lock slot 603 on the charging gun 6 matches the inclined surface and forms a matching inclined lock slot 603. The inclined surface of the lock tongue 401 meets the inclined surface of the lock slot 603 on the charging gun 6. Since the inclined surfaces of the two match, the lock tongue 401 can easily slide in along the inclined surface until it is completely locked, making it easier for the lock tongue 401 to enter the lock slot 603.

[0042] Furthermore, in order to reduce the wear on the socket 601 when the charging gun 6 is inserted, the top block 303 has a socket cavity 305 that can accommodate the socket 601, and the side wall of the charging gun 6 is provided with a bump block 602 that is adapted to the outer end surface of the protective cavity 1, and the bump block 602 is in the form of a stepped surface on the charging gun 6; when the charging gun 6 enters the protective cavity 1, the socket 601 enters the socket cavity 305, and the bump block 602 fits with the outer end surface of the socket cavity 305. A distance is left between the front end of the socket 601 and the bottom of the socket cavity 306 to avoid the socket 601 directly resting on the top block 303, thereby avoiding stress and wear on the front end surface of the socket 601.

[0043] The process of taking out the charging gun 6 in this embodiment is as follows: when the user turns on the charging gun 6, the control panel will first unlock the secondary electronic lock 5 to complete the unlocking of the charging gun 6, while the primary electronic lock 4 remains locked. Figure 2 , the lock tongue 401 of the primary electronic lock 4 enters the protective cavity 1 and is located on the pop-up path of the top block 303, and the primary spring mechanism 2 and the secondary spring mechanism 3 both release elastic force to make the top block 303 drive the charging gun 6 to pop out, and the top block 303 will be blocked by the lock tongue 401 of the primary electronic lock 4 during the pop-up process, so that the top block 303 pops out to the position of the lock tongue 401 of the primary electronic lock 4. The elastic force released and the displacement occurred in this process mainly make the charging gun 6 pop out a distance first, which is used to indicate that the charging gun 6 is in an unlocked state, which is beneficial for users to identify and take out the charging gun 6; when the charging pile detects that the charging gun 6 is taken out through the distance sensor 7, the control board will then control the primary electronic lock 4 to unlock, so that the lock tongue 401 of the primary electronic lock 4 is retracted, thereby completely releasing the primary spring mechanism 2 and the secondary spring mechanism 3, so that the top block 303 is at the cavity opening position of the protective cavity 1 and blocks the protective cavity 1.

[0044] After the charging gun 6 is taken out, both levels of electronic locks are in unlocked state. When the user puts it back, the charging gun 6 needs to be inserted into the protective cavity 1 in alignment. The side wall of the charging gun 6 is provided with an alignment ring 604, and the alignment ring 604 is also provided with an alignment mark to facilitate the user to quickly insert the alignment. An alignment groove 8 is provided on the surface of the charging gun 6. When the charging gun 6 is correctly aligned, the distance sensor 7 faces the alignment groove 8 and returns a specific distance value, so that the charging pile can identify the alignment state; after correct alignment, the first-level electronic lock 4 and the second-level electronic lock 5 perform the locking action, the lock tongue of the first-level electronic lock 4 enters the protective cavity 1 and is located on the pop-up path of the top block 303, and the lock tongue of the second-level electronic lock 5 enters the protective cavity 1 and cooperates with the lock groove 603 to lock the charger 6.

Claims

1. A new energy charging pile that is easy to maintain, comprising a charging pile with a protective cavity and a charging gun arranged in the protective cavity, wherein a socket is arranged at the front end of the charging gun, and the characteristics are: The protection cavity is provided with a primary spring mechanism, a secondary spring mechanism, a primary electronic lock and a secondary electronic lock; The primary spring mechanism comprises a primary guide rod, a spring seat and a primary spring. The bottom of the protective cavity has a guide groove, the primary guide rod is slidably sleeved in the guide groove, the spring seat is fixed to the end of the spring guide rod, and the primary spring is sleeved on the primary guide rod; The secondary spring mechanism comprises a secondary guide rod, a guide sleeve, a top block and a secondary spring, the spring seat has a spring cavity with a right opening, the guide sleeve is fixed at the bottom of the spring cavity, the secondary guide rod is slidably sleeved in the guide sleeve, a top block is fixed at the end of the secondary guide rod, the outer contour of the top block is adapted to the cavity opening of the protective cavity, and the secondary spring is sleeved on the secondary guide rod and located between the spring seat and the top block; The primary electronic lock and the secondary electronic lock are both arranged in the side wall of the protective cavity, and the side wall of the charging gun is provided with a lock groove adapted to the lock tongue of the secondary electronic lock; When the primary electronic lock is locked, its lock tongue enters the protective cavity and is located on the ejection path of the top block to prevent the top block from ejecting; When the secondary electronic lock is locked, its lock tongue enters the protective cavity and cooperates with the lock slot to lock the charging gun.

2. A new energy charging pile that is easy to maintain according to claim 1, characterized in that: The primary electronic lock and the secondary electronic lock both include a lock tongue, a reset rod, a reset spring, a cam and a motor. The side wall of the protective cavity has a plurality of mounting cavities, and the motor is fixed in the mounting cavity. The axis of the cam is installed on the rotating shaft of the motor. One end of the reset rod is in contact with the wheel surface of the cam, and the other end is fixed with a lock tongue. The reset rod is sleeved with a reset spring.

3. A new energy charging pile that is easy to maintain according to claim 1, characterized in that: The top block has a socket cavity that can accommodate the socket, and the side wall of the charging gun is provided with a collision block that is adapted to the outer end surface of the protective cavity; when the charging gun enters the protective cavity, the socket enters the socket cavity, and the collision block fits with the outer end surface of the socket cavity.

4. The new energy charging pile that is easy to maintain according to claim 1 is characterized in that: The side wall of the protection cavity is provided with a limiting step surface adapted to the spring seat.

5. A new energy charging pile that is easy to maintain according to any one of claims 1 to 4, characterized in that: The end of the locking tongue has an inclined surface inclined toward the inside of the protective cavity, and the locking groove on the charging gun matches the inclined surface to form an inclined surface locking groove fit.

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