Direct-current charging gun with efficient heat dissipation

Abstract

The utility model discloses an efficient heat dissipation direct current charging gun which comprises a charging gun shell, a plug is arranged on the front side of the charging gun shell, a plurality of terminals are arranged in the plug, a charging gun cable is arranged in the charging gun shell, the charging gun cable is connected with the terminals, a heat conduction block is connected outside the charging gun cable in a sleeved mode, and a radiator groove is formed in one side of the charging gun shell. A radiator is arranged in the radiator groove, a connecting block is arranged on the side, close to the radiator groove, of the heat conduction block, the connecting block is inserted into the radiator groove and makes contact with the radiator, and a switch is arranged at the bottom of the front side of the charging gun shell and electrically connected with the radiator. When the charging gun is used, the plug is inserted into the charging port of the automobile, the switch is pushed at the edge of the charging port of the automobile, the radiator is started through the switch to dissipate heat of the cable of the charging gun, high temperature generated by the cable of the charging gun is quickly conducted to the radiator through the heat conduction block, and the efficient heat dissipation effect can be achieved; and charging safety of the charging gun is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charging gun technical field, concretely relates to a high -efficient heat dissipation's direct current charging gun. BACKGROUND

[0002] The charging pile is similar to the oiling machine in the gas station, can be fixed on the ground or wall, is installed in public building (public building, shopping mall, public parking lot etc.) and residential quarter parking lot or charging station, can charge for various models of electric vehicles according to different voltage grades. The input end of the charging pile is directly connected with the AC power grid, and the output end is provided with a charging plug for charging electric vehicles. The charging pile generally provides two charging modes of conventional charging and fast charging, and people can use a specific charging card on the man-machine interactive operation interface provided by the charging pile to use, and perform corresponding charging mode, charging time, fee data printing and other operations. The charging pile display screen can display charging capacity, cost, charging time and other data.

[0003] At present, with the popularity of new energy vehicles, new energy charging guns are also widely used. When the charging gun is needed to charge the new energy vehicle, the charging gun is plugged into the vehicle end charging seat. The conductive terminal of the charging gun and the docking port of the vehicle end charging seat will inevitably have contact resistance, so a large amount of heat will be generated during charging. When the current passes through the internal cable of the charging gun, due to the resistance of the cable, according to Joule's law (heat = current square times time times resistance), the greater the current, the greater the resistance, the longer the charging time, and the more heat the cable generates. The internal temperature of the charging gun is too high, which causes the internal components of the charging gun to malfunction and stop working, reduces the service life of the charging gun, and even causes the charging gun to burn out and cause short circuit, which has certain safety hazards. Therefore, it is necessary to design a heat dissipation type charging gun.

[0004] Therefore, the applicant has made beneficial design, found a method to solve the above problems, and the technical scheme to be introduced below is generated in this background. UTILITY MODEL CONTENTS

[0005] The utility model relates to a kind of high-efficiency heat-dissipation direct current charging gun to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The direct current charging gun with high heat dissipation efficiency comprises a charging gun shell, a plug is arranged on the front side of the charging gun shell, a plurality of terminals are arranged in the plug, a charging gun cable is arranged in the charging gun shell, the charging gun cable is connected with the terminals, a heat conduction block is sleeved outside the charging gun cable, a heat dissipation groove is arranged on one side of the charging gun shell, a heat dissipation device is arranged in the heat dissipation groove, a connecting block is arranged on the side of the heat conduction block close to the heat dissipation groove, the connecting block is inserted into the heat dissipation groove and is in contact with the heat dissipation device, and a switch is arranged on the bottom of the front side of the charging gun shell and is electrically connected with the heat dissipation device.

[0008] Preferably, a cover plate is arranged at the opening of the heat dissipation groove, air inlet holes are formed in the surface of the cover plate, and a plurality of air outlet holes are formed in the bottom of the heat dissipation groove.

[0009] Preferably, the heat conduction block is made of copper.

[0010] Preferably, the gap between the heat conduction block and the charging gun cable is filled with heat-conducting silicone grease.

[0011] Beneficial effects

[0012] The one or more technical solutions in the direct current charging gun with high heat dissipation efficiency provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] According to the above technical solution, when the charging gun is used, the plug is inserted into the charging port of the automobile, the switch at the edge of the charging port of the automobile is pushed, the heat dissipation device is started through the switch to dissipate heat of the charging gun cable, the high temperature generated by the charging gun cable is quickly conducted to the heat dissipation device through the heat conduction block, the efficient heat dissipation effect is achieved, the probability of failure caused by excessively high temperature in the use process of the charging gun is effectively reduced, the use safety of the charging gun is ensured, and the service life of the charging gun is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the utility model;

[0015] Fig. 2 It is a top view sectional structure schematic view of the utility model.

[0016] The correspondence between the annotations of the drawings and the component names in the drawings is as follows:

[0017] 1, charging gun shell;2, plug;3, terminal;4, charging gun cable;5, heat conduction block;6, heat dissipation groove;7, heat dissipation device;8, connecting block;9, switch;10, cover plate;11, air inlet hole;12, air outlet hole. DETAILED DESCRIPTION

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figs. 1-2 The diagram shown is a structural schematic of a high-efficiency heat dissipation DC charging gun according to a preferred embodiment of the present invention.

[0022] In this embodiment, the charging gun shell 1 is provided with a plug 2 on the front side, a plurality of terminals 3 are arranged in the plug 2, a charging gun cable 4 is arranged in the charging gun shell 1, the charging gun cable 4 is connected with the terminals 3, a heat conduction block 5 is sleeved outside the charging gun cable 4, the heat conduction block 5 is covered outside the charging gun cable 4, a heat dissipation groove 6 is arranged on one side of the charging gun shell 1, a heat dissipation fan 7 is arranged in the heat dissipation groove 6, the heat conduction block 5 is integrally provided with a connecting block 8 on the side close to the heat dissipation groove 6, the connecting block 8 is inserted into the heat dissipation groove 6 and is in contact with the heat dissipation fan 7, the heat generated by the charging gun cable 4 is conducted to the heat dissipation fan 7 through the heat conduction block 5 and the connecting block 8, a switch 9 is arranged on the bottom of the front side of the charging gun shell 1, the switch 9 is a micro switch, and the switch 9 is electrically connected with the heat dissipation fan 7. The heat dissipation fan 7 is connected with the charging gun power supply and is powered by the charging gun power supply. When the charging gun is used, the plug 2 is inserted into the charging port of the automobile, the switch 9 is pushed by the edge of the charging port of the automobile, the heat dissipation fan 7 is started through the switch 9 to dissipate heat of the charging gun cable 4, the high temperature generated by the charging gun cable 4 is quickly conducted to the heat dissipation fan 7 through the heat conduction block 5, the efficient heat dissipation effect can be achieved, the probability of failure caused by high temperature in the use process of the charging gun is effectively reduced, the use safety of the charging gun is ensured, and the service life of the charging gun is prolonged.

[0023] In this embodiment, the heat dissipation groove 6 is provided with a cover plate 10 at the opening, the cover plate 10 is used for protecting the heat dissipation fan 7, air inlet holes 11 are formed in the surface of the cover plate 10, and a plurality of air outlet holes 12 are formed in the bottom of the heat dissipation groove 6. In the use process, the air inlet holes 11 are used for air inlet, and the air outlet holes 12 are used for discharging high-temperature heat in the charging gun shell 1.

[0024] In this embodiment, the heat conduction block 5 is made of copper material. The material has good heat conduction effect and fast heat conduction efficiency

[0025] In this embodiment, the gap between the heat conduction block 5 and the charging gun cable 4 is filled with heat-conducting silicone grease. Through the structure, the heat conduction effect of the heat conduction block 5 on the charging gun cable 4 is improved.

[0026] The installation mode, connection mode or setting mode of the direct current charging gun with efficient heat dissipation of the utility model are all common mechanical modes, and as long as the beneficial effects can be achieved, the utility model can be implemented.

[0027] The technologies not described in detail in the utility model are all known technologies, and the contents represented in the drawings are part of the specification.

[0028] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the utility model specific implementation is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.

Claims

1. A high-efficiency heat-dissipation direct-current charging gun comprising a charging gun shell (1), characterized in that: The front side of the charging gun shell (1) is provided with a plug (2), a plurality of terminals (3) are arranged in the plug (2), the charging gun shell (1) is internally provided with a charging gun cable (4), the charging gun cable (4) is connected with the terminals (3), the charging gun cable (4) is externally sleeved with a heat-conducting block (5), one side of the charging gun shell (1) is provided with a radiator groove (6), the radiator groove (6) is internally provided with a radiator (7), one side of the heat-conducting block (5) close to the radiator groove (6) is provided with a connecting block (8), the connecting block (8) is inserted into the radiator groove (6) and is in contact with the radiator (7), the front side of the charging gun shell (1) is provided with a switch (9) at the bottom, and the switch (9) is electrically connected with the radiator (7).

2. The high-efficiency heat-dissipation DC charging gun according to claim 1, characterized in that: The opening of the radiator groove (6) is provided with a cover plate (10), the surface of the cover plate (10) is provided with an air inlet hole (11), and the bottom of the radiator groove (6) is provided with a plurality of air outlet holes (12).

3. The high-efficiency heat-dissipation DC charging gun according to claim 1, characterized in that: The heat-conducting block (5) is made of copper material.

4. The high-efficiency heat-dissipation DC charging gun according to claim 1, characterized in that: The gap between the heat-conducting block (5) and the charging gun cable (4) is filled with heat-conducting silicone grease.

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