Self-cleaning charging gun

Abstract

The utility model provides a self-cleaning type charging gun, which belongs to the technical field of new energy vehicle charging devices and comprises a charging main body and a charging connector arranged at one end of the charging main body, the charging connector is provided with a charging terminal and an air guide hole, the other end of the charging main body is used for being electrically connected with a charging pile, and a containing cavity is formed in the charging main body. The system further comprises a gas storage tank, a cleaning pipe, a conveying pump, a detector and a controller. The gas storage tank is arranged in the charging pile. The cleaning pipe is arranged in the containing cavity, one end of the cleaning pipe is connected with the air storage tank, and the other end of the cleaning pipe is inserted into the air guide hole. The conveying pump is arranged on the cleaning pipe; the detector is arranged on the charging connector; the controller is in communication connection with the conveying pump and the detector. The utility model provides a self-cleaning type charging gun, and aims to solve the problems that in the prior art, a charging head of the charging gun and a charging port of a vehicle are cleaned mainly depending on manpower, so that the labor cost is increased, and dirt is likely to occur and cannot be cleaned in time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy vehicle charging device technical field, more specifically, it relates to a self-cleaning type charging gun. BACKGROUND

[0002] New energy automobile mainly charges the battery of the automobile through the charging gun in use, and is used for supplementing the electric energy of the battery of the vehicle. Generally, the charging gun is electrically connected with the charging pile through the charging cable, and the charging gun is fixed to the charging pile in the non-use state, and the charging cable is wound or placed on the charging pile.

[0003] However, due to the influence of the external environment, the charging head of the charging gun and the charging port of the vehicle are easy to accumulate dust and other impurities, which not only easily causes the charging head on the charging gun and the charging port of the vehicle to be corroded, but also easily causes the charging head and the charging port to be inserted after the phenomenon of poor contact, which affects the normal charging operation of the vehicle. In order to avoid the above problems, it is necessary to clean the charging head and the charging port of the vehicle regularly, which not only consumes a lot of human resources, but also affects the normal charging of the vehicle if the dirt is not cleaned in time. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a self-cleaning type charging gun, which aims at solving the problem that the charging head of the charging gun and the charging port of the vehicle are cleaned mainly by manual labor in the prior art, causing the increase of labor cost, and the dirt cannot be cleaned in time.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A self-cleaning type charging gun is provided, which comprises a charging main body and a charging connector arranged at one end of the charging main body, a charging terminal is arranged on the charging connector, a gas guide hole is formed in the charging connector, the other end of the charging main body is used for electrically connecting with a charging pile, a containing cavity is formed in the charging main body, and the self-cleaning type charging gun further comprises:

[0007] A gas storage tank is arranged in the charging pile.

[0008] A cleaning pipe is arranged in the containing cavity, one end of the cleaning pipe is connected with the gas storage tank, and the other end of the cleaning pipe is inserted into the gas guide hole.

[0009] A conveying pump is arranged on the cleaning pipe.

[0010] A detector is arranged on the charging connector.

[0011] A controller is communicatively connected with the conveying pump and the detector.

[0012] In a possible implementation, the self-cleaning charging gun further comprises an air pump arranged at the air inlet of the gas storage tank and a pressure detection gauge arranged in the gas storage tank, and the air pump and the pressure detection gauge are in communication connection with the controller.

[0013] In a possible implementation, the charging connector is provided with an electric connection groove, the charging terminal and the air guide hole are arranged in the electric connection groove, and the air guide hole is located outside the charging terminal.

[0014] In a possible implementation, a nozzle is arranged in the air guide hole, the air outlet end of the cleaning pipe is connected to the nozzle, the nozzle comprises a tapered flow guide portion and a connecting portion connected to the small-diameter end of the flow guide portion, the connecting portion is connected to the cleaning pipe, and the large-diameter end of the flow guide portion is flush with the end face of the air guide hole.

[0015] In a possible implementation, the charging connector is further provided with a buckle and a protective sheet arranged outside the buckle, the buckle is used for buckling or hanging cooperation with a clamping block on a charging pile, and the protective sheet is used for protecting the buckle from damage by external force.

[0016] In a possible implementation, the self-cleaning charging gun further comprises a dustproof cover arranged outside the charging connector, the dustproof cover has a closed state of covering the charging connector and an open state of allowing the charging connector to be plugged into a charging port of a vehicle.

[0017] In a possible implementation, one side of the dustproof cover is rotationally connected to the charging connector, and the other side of the dustproof cover is buckled to the charging connector.

[0018] In a possible implementation, the charging connector comprises a charging seat and a charging block arranged on the charging seat, the air guide hole is arranged in the charging block, the outer wall of the charging block is provided with a buckling strip in a circumferential direction, the inner wall of the dustproof cover is provided with an elastic clamping sheet matched with the buckling strip, and the elastic clamping sheet is buckled to the buckling strip.

[0019] In a possible implementation, a plurality of elastic clamping sheets are distributed in a circumferential direction along the dustproof cover, and the inner wall of the elastic clamping sheet is provided with a protrusion matched with the buckling strip.

[0020] In a possible implementation, the buckling strip is connected at the head and the tail to form a ring structure, the elastic clamping sheet has a rotational degree of freedom in a circumferential direction after being buckled to the buckling strip, the dustproof cover is further provided with cleaning cotton, the cleaning cotton is arranged in correspondence with the charging terminal, and the cleaning cotton abuts against the charging terminal when the dustproof cover is in a closed state.

[0021] The self-cleaning type charging gun has the advantages that compared with the prior art, the charging terminal of the self-cleaning type charging gun is used for electrically connecting with a vehicle charging port, the gas outlet end of the cleaning pipe is inserted into the air guide hole of the charging connector, when the detector detects that the charging connector or the vehicle charging port needs to be cleaned, a cleaning signal is generated, the controller controls the delivery pump to start according to the cleaning signal, the gas in the gas storage tank is delivered into the cleaning pipe, and is discharged from the gas outlet end of the cleaning pipe. The dirt on the charging connector is impacted by the high-pressure gas sprayed by the cleaning pipe, so that the dirt is removed from the charging connector. When the charging connector corresponds to the vehicle charging port, the high-pressure gas can also generate impact force on the dirt on the vehicle charging port, and the vehicle charging port is cleaned. The self-cleaning type charging gun does not need manual periodical cleaning, labor cost is reduced, and the detector is used to control the start of the delivery pump, so that the situation that the dirt is not cleaned in time and the normal charging of the vehicle is affected can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The structure schematic diagram of the self-cleaning type charging gun provided by the embodiment of the present application is shown in the figure.

[0024] Figure 2 The front view of the self-cleaning type charging gun provided by the embodiment of the present application is shown in the figure.

[0025] Figure 3 The front view of the dustproof cover and the charging connector used by the embodiment of the present application is shown in the figure.

[0026] Figure 4 The partial sectional view of the dustproof cover and the charging connector used by the embodiment of the present application is shown in the figure.

[0027] Figure 5 The side view of the dustproof cover and the charging connector used by another embodiment of the present application is shown in the figure.

[0028] Figure 6 The front view of the nozzle used by the embodiment of the present application is shown in the figure.

[0029] In the figure: 1, charging main body; 2, charging connector; 201, charging block; 202, charging seat; 203, power connection groove; 204, charging terminal; 205, clamping strip; 3, detector; 4, cleaning pipe; 5, switch button; 6, buckle; 7, protective sheet; 8, dust cover; 801, elastic card; 8011, protrusion; 9, nozzle; 901, flow guide part; 902, connecting part. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0031] In the claims, specification and above drawings of the utility model, unless otherwise explicitly limited, the terms such as “first”, “second” or “third” are used only to distinguish different objects, and are not used to describe a specific order. Unless otherwise stated, the remaining orientation words, such as “vertical”, “clockwise”, “counterclockwise” and the like, indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the utility model. In the claims, specification and above drawings of the utility model, unless otherwise explicitly limited, such as the use of the terms “fixedly connected” or “fixedly connected”, it should be understood broadly, that is, any connection mode between the two without displacement relationship and relative rotation relationship, that is, it means including non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements. In the claims, specification and above drawings of the utility model, the terms “including”, “having” and their variants are intended to mean “including but not limited to”.

[0032] Please see Figures 1 to 6 , now the self-cleaning type charging gun provided by the utility model will be described. The self-cleaning type charging gun comprises a charging main body 1 and a charging connector 2 arranged at one end of the charging main body 1, the charging connector 2 is provided with a charging terminal and is provided with a gas guide hole, the other end of the charging main body 1 is used for electrically connecting with a charging pile, and a containing cavity is formed in the charging main body 1, the self-cleaning type charging gun further comprises a gas storage tank, a cleaning pipe 4, a conveying pump, a detector 3 and a controller, the gas storage tank is arranged in the charging pile; the cleaning pipe 4 is arranged in the containing cavity, one end of the cleaning pipe 4 is connected with the gas storage tank, and the other end of the cleaning pipe 4 is inserted into the gas guide hole; the conveying pump is arranged on the cleaning pipe 4; the detector 3 is arranged on the charging connector 2; and the controller is in communication connection with the conveying pump and the detector 3.

[0033] Compared with the prior art, the self-cleaning charging gun has the charging terminal 204 for conducting electric connection with the vehicle charging port, the gas outlet end of the cleaning pipe 4 is inserted into the air guide hole of the charging connector 2, when the detector 3 detects that the charging connector 2 or the vehicle charging port needs to be cleaned, a cleaning signal is generated, the controller controls the starting of the delivery pump according to the cleaning signal, the gas in the gas storage tank is delivered into the cleaning pipe 4 and discharged from the gas outlet end of the cleaning pipe 4. The dirt on the charging connector 2 is impacted by the high-pressure gas sprayed from the cleaning pipe 4, so that the dirt is removed from the charging connector 2. When the charging connector 2 corresponds to the vehicle charging port, the high-pressure gas can also generate an impact force on the dirt on the vehicle charging port, and then the vehicle charging port is cleaned. The self-cleaning charging gun does not need to be cleaned regularly by manual work, the labor cost is reduced, and the starting of the delivery pump can be controlled by the detector 3, so that the situation that the dirt is not cleaned in time and the normal charging of the vehicle is affected can be avoided.

[0034] Optionally, the charging main body 1 is further provided with a switch button 5, the switch button 5 is in conductive connection with the switch valve, and the switch button 5 is used for controlling the opening and closing of the switch valve.

[0035] Optionally, the detector 3 is a camera and / or a proximity switch sensor, and the detector 3 is used for detecting the dirt on the charging connector 2 and / or detecting the distance between the charging connector 2 and the vehicle charging port. When the charging connector 2 corresponds to the vehicle charging port, the camera can detect whether there is dirt on the vehicle charging port, and a cleaning signal is generated when it is detected that there is dirt on the vehicle charging port. When the detector 3 is a proximity switch sensor, the detector 3 generates a cleaning signal when the distance between the charging connector 2 and the vehicle charging port reaches a preset distance.

[0036] It should be noted that when the detector 3 is a proximity switch sensor, if the charging connector 2 is plugged into the vehicle charging port, the proximity switch sensor is always in a closed state.

[0037] Specifically, the charging connector 2 is provided with a containing groove, and the detector 3 is arranged in the containing groove, so that the insertion of the charging connector 2 and the vehicle charging port is not affected.

[0038] Specifically, the air guide hole is arranged on the outer side of the charging terminal 204, and the gas flow direction of the gas sprayed from the cleaning pipe 4 is at an angle with the axis of the air guide hole, so that the dirt on the charging connector 2 can be cleaned.

[0039] In some embodiments, not shown in the figure, the self-cleaning charging gun further comprises an air pressure pump arranged at the gas inlet of the gas storage tank and a pressure detection meter arranged in the gas storage tank, and the air pressure pump and the pressure detection meter are respectively in communication connection with the controller.

[0040] When the pressure detector detects that the pressure in the gas tank is lower than the first preset pressure, a pressurization signal is generated, and the controller controls the air pressure pump to start working according to the pressurization signal, so as to input gas into the gas tank and increase the pressure in the gas tank. When the pressure detector detects that the pressure in the gas tank is higher than the second preset pressure, a stop signal is generated, and the controller controls the air pressure pump to stop working according to the stop signal. In this embodiment, the pressure in the gas tank can be ensured to be within the preset range, so that the charging connector 2 and the vehicle charging port can be cleaned.

[0041] In some embodiments, referring to Figure 1 , the charging connector 2 is provided with an electrical connection groove 203, and the charging terminal 204 and the air guide hole are located in the electrical connection groove 203, and the air guide hole is located outside the charging terminal 204.

[0042] The charging terminal 204 and the air guide hole are located in the electrical connection groove 203, which can avoid the situation that the exposed electrical connection terminal is easily damaged by external force, and improve the service life of the charging gun. The air guide hole is located in the electrical connection groove 203, which can effectively clean the charging connector 2 and the surrounding area, and ensure the reliability and stability of the electrical connection between the terminal and the vehicle charging port.

[0043] In some embodiments, referring to Figure 6 , the air guide hole is provided with a nozzle 9, and the air outlet end of the cleaning pipe 4 is connected to the nozzle 9. The nozzle 9 includes a tapered flow guide part 901 and a connecting part 902 connected to the small diameter end of the flow guide part 901. The connecting part 902 is connected to the cleaning pipe 4, and the large diameter end of the flow guide part 901 is flush with the end face of the air guide hole.

[0044] The large diameter end of the flow guide part 901 is flush with the end face of the air guide hole, which can avoid the situation that the flow guide part 901 protrudes outward and interferes with the vehicle charging port during vehicle charging. In addition, the flow guide part 901 has a tapered structure, and the airflow discharged from the cleaning pipe 4 flows along the inner circumferential surface of the flow guide part 901, so as to form an airflow direction that forms an angle with the axis of the air guide hole. The surface of the charging connector 2 can be effectively cleaned, and the problem that the vehicle charging port is easily damaged by the impact of the straight airflow with excessive pressure is also avoided.

[0045] In some embodiments, referring to Figures 1 to 2 , the charging connector 2 is further provided with a buckle 6 and a protective sheet 7 surrounding the outside of the buckle 6. The buckle 6 is used for clamping or hanging cooperation with the clamping block on the charging pile, and the protective sheet 7 is used for protecting the buckle 6 from being damaged by external force.

[0046] The self-cleaning charging gun is fixed to the charging pile through the buckling 6 and the clamping block on the charging pile when not in use. However, the buckling 6 is easily damaged by external force, which affects its fixation, so a protective sheet 7 is arranged outside the clamping block to avoid damage caused by accidental contact, thereby prolonging the service life of the buckling 6.

[0047] Specifically, the protective sheet 7 does not affect the connection between the buckling 6 and the clamping block.

[0048] In some embodiments, referring to Figures 3 to 5 , the self-cleaning charging gun further comprises a dust cover 8 arranged outside the charging connector 2, which has a closed state of covering the charging connector 2 and an open state of allowing the charging connector 2 to be plugged into the charging port of the vehicle.

[0049] The dust cover 8 can avoid the charging connector 2 from being affected by dust and other impurities when not in use, and protect it in a closed and clean environment. When the vehicle needs to be charged, the dust cover 8 is switched to the open state.

[0050] Optionally, the dust cover 8 is screwed or clamped with the charging connector 2, for example, the charging connector 2 is provided with external threads, and the dust cover is provided with matching internal threads, so that the dust cover 8 is connected with the charging connector 2 by screwing.

[0051] In some embodiments, referring to Figure 5 , one side of the dust cover 8 is rotatably connected with the charging connector 2, and the other side is clamped with the charging connector 2.

[0052] The dust cover 8 is rotatably connected with the charging connector 2 and is kept in the closed state by clamping, thereby achieving the dustproof protection of the charging connector 2. In this embodiment, the dust cover 8 is prevented from being easily lost due to the detachable connection with the charging connector 2.

[0053] It should be noted that the "other side" in the "other side clamped with the charging connector 2" can be the side corresponding to the rotatable connection side of the dust cover 8 with the charging connector 2, or any other position on the dust cover 8 except the rotatable connection area.

[0054] Optionally, the dust cover 8 is rotatably connected with the charging connector 2 through a rotating shaft, and a torsional spring is further arranged outside the rotating shaft, which is configured to have a pre-tightening force to keep the dust cover 8 in the open state. When the dust cover 8 is disconnected from the charging connector 2, it remains in the open state under the action of the torsional spring, thereby avoiding affecting the conductive connection between the charging connector 2 and the charging port of the vehicle.

[0055] In some embodiments, referring to Figures 3 to 4The charging connector 2 comprises a charging seat 202 and a charging block 201 arranged on the charging seat 202, and a gas guide hole is arranged on the charging block 201. An outer wall of the charging block 201 is arranged with a clamping strip 205 in a circumferential direction. An inner wall of the dust cover 8 is arranged with an elastic clamping sheet 801 matched with the clamping strip 205, and the elastic clamping sheet 801 is clamped and matched with the clamping strip 205.

[0056] The dust cover 8 and the charging block 201 are detachably connected by clamping and matching in the embodiment, and the dust cover 8 is separated from the charging block 201 when the vehicle needs to be charged, so that quick disassembly and assembly are realized, the structure is simple, the dust cover 8 can be replaced in time after being damaged, and the replacement cost is reduced.

[0057] Optionally, the elastic clamping sheet 801 can be a ring structure connected at the head and tail, and the elastic clamping sheet 801 is arranged with a protrusion 8011 matched with the clamping strip 205 in the inner wall.

[0058] Optionally, the clamping strip 205 can be arranged with a plurality of clamping strips 205 distributed in the circumferential direction of the charging block 201, and the elastic clamping sheet 801 is arranged one by one corresponding to the clamping strip 205.

[0059] In some embodiments, referring to Figure 3 the elastic clamping sheet 801 is arranged with a plurality of elastic clamping sheets 801 distributed in the circumferential direction of the dust cover 8, and the inner wall of the elastic clamping sheet 801 is arranged with a protrusion 8011 matched with the clamping strip 205.

[0060] The plurality of elastic clamping sheets 801 are clamped with the clamping strip 205 in the embodiment, multi-point connection is realized, and the reliability and firmness of the connection are improved. In addition, since there is a spacing between adjacent elastic clamping sheets 801, a deformation space is provided for the elastic clamping sheet 801, which is beneficial to clamping or separating the elastic clamping sheet 801 from the clamping strip 205.

[0061] In some embodiments, referring to Figure 4 the clamping strip 205 is connected at the head and tail to form a ring structure, and the elastic clamping sheet 801 has a rotational freedom in the circumferential direction after being clamped with the clamping strip 205. The dust cover 8 is further arranged with cleaning cotton, and the cleaning cotton is arranged corresponding to the charging terminal 204. When the dust cover 8 is in a closed state, the cleaning cotton abuts against the charging terminal 204.

[0062] Since the clamping strip 205 is a ring structure, the dust cover 8 will not cause the elastic clamping sheet 801 to separate from the clamping strip 205 when rotating around the axis of the dust cover 8. With the rotation of the dust cover 8, the cleaning cotton generates a friction force with the charging terminal 204, and the dirt on the charging terminal 204 is cleaned by friction.

[0063] Optionally, the cleaning cotton is sponge or flexible cloth.

[0064] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-cleaning charging gun, characterized in that, The charging gun comprises a charging body and a charging connector arranged at one end of the charging body, the charging connector is provided with a charging terminal and a gas guide hole, the other end of the charging body is used for electrically connecting with a charging pile, a containing cavity is arranged in the charging body, and the charging gun further comprises: a gas storage tank arranged in the charging pile; a cleaning pipe arranged in the containing cavity, one end of the cleaning pipe being connected with the gas storage tank and the other end being inserted into the gas guide hole; a conveying pump arranged on the cleaning pipe; a detector arranged on the charging connector; and a controller in communication connection with the conveying pump and the detector.

2. The self-cleaning charging gun of claim 1, wherein, The self-cleaning charging gun further comprises an air pressure pump arranged at an air inlet of the gas storage tank and a pressure detection gauge arranged in the gas storage tank, the air pressure pump and the pressure detection gauge being in communication connection with the controller.

3. The self-cleaning charging gun of claim 1, wherein, An electric connection groove is arranged on the charging connector, the charging terminal and the gas guide hole being arranged in the electric connection groove, and the gas guide hole being arranged outside the charging terminal.

4. The self-cleaning charging gun of claim 1, wherein, A nozzle is inserted into the gas guide hole, an air outlet end of the cleaning pipe being connected with the nozzle, the nozzle comprising a tapered flow guide portion and a connecting portion connected with a small-diameter end of the flow guide portion, the connecting portion being connected with the cleaning pipe, and a large-diameter end of the flow guide portion being flush with an end surface of the gas guide hole.

5. The self-cleaning charging gun of claim 1, wherein, The charging connector is further provided with a buckle and a protective sheet arranged outside the buckle, the buckle being used for clamping or hanging cooperation with a clamping block on the charging pile, and the protective sheet being used for protecting the buckle from damage by external force.

6. The self-cleaning charging gun of claim 1, wherein, The self-cleaning charging gun further comprises a dustproof cover arranged outside the charging connector, the dustproof cover having a closed state of covering the charging connector and an open state of allowing the charging connector to be inserted into a charging port of a vehicle.

7. The self-cleaning charging gun of claim 6, wherein, One side of the dustproof cover is rotationally connected with the charging connector, and the other side is clamped with the charging connector.

8. The self-cleaning charging gun of claim 6, wherein, The charging connector comprises a charging seat and a charging block arranged on the charging seat, the gas guide hole being arranged in the charging block, an outer wall of the charging block being provided with a clamping strip in a circumferential direction, an inner wall of the dustproof cover being provided with an elastic clamping sheet matched with the clamping strip, and the elastic clamping sheet being clamped with the clamping strip.

9. The self-cleaning charging gun of claim 8, wherein, A plurality of elastic clamping sheets are distributed in the circumferential direction of the dustproof cover, and an inner wall of the elastic clamping sheet is provided with a protrusion matched with the clamping strip.

10. The self-cleaning charging gun of claim 8, wherein, The clamping strip is connected at the head and tail to form a ring structure, the elastic clamping sheet has a rotational freedom degree in the circumferential direction after being clamped with the clamping strip, the dustproof cover is further provided with cleaning cotton, the cleaning cotton is arranged corresponding to the charging terminal, and the cleaning cotton abuts against the charging terminal when the dustproof cover is in the closed state.

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