Novel liquid cooling direct current charging gun

Abstract

The utility model relates to the field of charging guns, and discloses a novel liquid cooling direct current charging gun, which comprises a mounting pipe, the mounting pipe is arranged in a protective shell, a connecting pipe is arranged in the protective shell, the mounting pipe and the connecting pipe are fixedly sleeved, heat dissipation ceramic is arranged in the connecting pipe, and the heat dissipation ceramic is arranged in the protective shell. A copper bent pipe is arranged in the connecting pipe, sealing heat-conducting glue is filled between the heat dissipation ceramic and the copper bent pipe, a liquid cooling water pipe is fixedly inserted into one end of the copper bent pipe, and two DC terminals are fixed in the protective shell. According to the utility model, the cooling liquid in the copper elbow can bring heat into the circulating cooling system and export the heat, so that the temperature of the cooling liquid is reduced again and the heat in the gun body can be absorbed again, thereby forming a complete circulating cooling water path and realizing continuous cooling of the charging gun. Therefore, the charging gun can maintain high-power operation for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of charging gun, concretely to a novel liquid cooling direct current charging gun. BACKGROUND

[0002] Charging gun is a kind of equipment for charging electric vehicle, it is the key interface of connecting charging pile and electric vehicle.The main function of charging gun is to transmit electric energy from charging pile to the battery of electric vehicle for driving use.It has multiple safety protection functions, such as overcurrent, overvoltage, overtemperature protection, to ensure the safety during charging.Charging gun also has the characteristics of high efficiency charging, using high-power charging technology, can greatly shorten the charging time.

[0003] In the prior art, by increasing charging current and voltage, the charging time is significantly shortened, the increased current and voltage may cause the charging gun to heat seriously due to resistance, resulting in reduced charging efficiency of the charging gun, and the high-power operation of the charging gun cannot be maintained for a long time. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a novel liquid cooling direct current charging gun to solve the problem that the increased current and voltage may cause the charging gun to heat seriously due to resistance, resulting in reduced charging efficiency of the charging gun, and the high-power operation of the charging gun cannot be maintained for a long time.

[0005] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical scheme: a novel liquid cooling direct current charging gun, comprising a mounting pipe, the mounting pipe is arranged in the inside of protective shell, the inside of protective shell is provided with connecting pipe, the mounting pipe is fixedly sleeved with connecting pipe, the inside of connecting pipe is provided with heat dissipation ceramic, the inside of connecting pipe is provided with copper elbow pipe, the heat dissipation ceramic and copper elbow pipe are filled with sealing heat-conducting adhesive, one end of copper elbow pipe is fixedly inserted with liquid cooling water pipe, the other end of liquid cooling water pipe is fixedly inserted with the other end of copper elbow pipe, the inside of protective shell is fixedly provided with two DC terminals, the inside of protective shell is detachably inserted with charging end, one end of charging end is provided with two storage holes, the DC terminals are fixedly inserted with storage holes, the bottom surface of mounting pipe is provided with temperature control inductor.

[0006] Preferably, the surface of the charging end is provided with a positioning groove, the inside of the positioning groove is provided with a limiting groove, the inner wall surface of the protective shell is fixedly provided with a limiting ring, and the limiting groove and the limiting ring are slidably arranged.

[0007] Preferably, the bottom surface of the mounting pipe is fixed with two fixed flaps, and the two fixed flaps are slidably arranged with the temperature control sensor.

[0008] Preferably, the inside of the protective shell is provided with a fixing cylinder, two sleeve holes are formed in one end of the inside of the fixing cylinder, a positioning ring is fixed on the surface of one end of the DC terminal, a fixing ring is fixedly inserted on the DC terminal, and the sleeve hole is fixedly inserted with the DC terminal.

[0009] Preferably, the inside of the charging end is provided with two clamping grooves, and the surface of the DC terminal is slidably inserted with a gasket, and the gasket is sleeved between the clamping groove and the fixing ring.

[0010] Preferably, the surface of the copper elbow pipe is provided with a plurality of staggered grooves at both ends, and the inner wall surface of the liquid cooling water pipe is provided with a plurality of mounting grooves at both ends.

[0011] Compared with the prior art, the liquid-cooled DC charging gun has the following beneficial effects:

[0012] I. When the charging gun is working, the gun body of the charging gun will generate heat due to current, thereby increasing the temperature of the gun body during charging use. At this time, the temperature control sensor will start the liquid cooling system after sensing the heat inside the gun body. At this time, the heat is transferred to the cooling liquid in the copper elbow pipe by the heat dissipation ceramic, and the cooling liquid in the copper elbow pipe will bring the heat into the circulating cooling system and export it, so that the temperature of the cooling liquid is reduced again to absorb the heat in the gun body. That is, a complete circulating cooling water path is formed to realize the continuous cooling of the charging gun, thereby ensuring that the charging gun can maintain high-power operation for a long time.

[0013] II. When assembling the protective shell, the charging end and the DC terminal, the worker will first insert the DC terminal in the inside of the sleeve hole. At this time, the sleeve hole is sleeved between the positioning ring and the fixing ring, thereby increasing the firmness of the DC terminal in the installation position inside the protective shell. Then, when the worker assembles the protective shell and the charging end together, as the charging end moves towards the protective shell, the gasket is pressed between the fixing ring and the clamping groove, thereby increasing the firmness of the DC terminal in the internal position of the charging gun. At the same time, it can also absorb and alleviate part of the vibration and impact, and increase the safety of the DC terminal during use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the embodiment.

[0015] Figure 2 A sectional view of an embodiment.

[0016] Figure 3 A sectional view of a copper elbow and a liquid cooling water pipe in an embodiment.

[0017] Figure 4 A rear view of an embodiment.

[0018] Figure 5 A Figure 2 An enlarged schematic view of a partial structure at A in the middle.

[0019] In the figure: 1, protective shell; 2, temperature control sensor; 3, mounting pipe; 4, connecting pipe; 5, heat dissipation ceramic; 6, copper elbow; 7, liquid cooling water pipe; 8, DC terminal; 9, charging end; 10, storage hole; 11, fixing cylinder; 12, sleeving hole; 13, positioning groove; 14, limiting groove; 15, limiting ring; 16, positioning ring; 17, fixing ring; 18, clamping groove; 19, gasket; 20, limiting folded plate; 21, fixing folded plate; 22, mounting groove; 23, staggered groove. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present application will be described in detail below with reference to the drawings.

[0021] As Figures 1-5 shown, a novel liquid cooling DC charging gun, comprising a mounting pipe 3, the mounting pipe 3 is arranged in the interior of a protective shell 1, the interior of the protective shell 1 is provided with a connecting pipe 4, the mounting pipe 3 is fixedly sleeved with the connecting pipe 4, the interior of the connecting pipe 4 is provided with a heat dissipation ceramic 5, the interior of the connecting pipe 4 is provided with a copper elbow 6, the heat dissipation ceramic 5 and the copper elbow 6 are filled with sealing heat-conducting glue, one end of the copper elbow 6 is fixedly inserted with a liquid cooling water pipe 7, the other end of the liquid cooling water pipe 7 is fixedly inserted with the other end of the copper elbow 6, two DC terminals 8 are fixed in the interior of the protective shell 1, a charging end 9 is detachably inserted in the interior of the protective shell 1, two storage holes 10 are formed in one end of the charging end 9, the DC terminals 8 are fixedly inserted with the storage holes 10, a temperature control sensor 2 is arranged on the bottom surface of the mounting pipe 3, a positioning groove 13 is formed on the surface of the charging end 9, a limiting groove 14 is formed in the interior of the positioning groove 13, a limiting ring 15 is fixed on the inner wall surface of the protective shell 1, the limiting groove 14 and the limiting ring 15 are slidably arranged, two fixing folded plates 21 are fixed on the bottom surface of the mounting pipe 3, the two fixing folded plates 21 and the temperature control sensor 2 are slidably arranged, two limiting folded plates 20 are fixed on the bottom surface of the mounting pipe 3, the two limiting folded plates 20 are respectively slidably arranged with two corners of the temperature control sensor 2.

[0022] In use, when the charging gun works, the gun body of the charging gun generates heat due to current, thereby increasing the temperature of the gun body during charging use, at this time, the temperature control sensor 2 starts the liquid cooling system after sensing the heat inside the gun body, at this time, the heat is transferred to the cooling liquid in the copper elbow pipe 6 by the heat dissipation ceramic 5, the cooling liquid inside the copper elbow pipe 6 brings the heat into the circulating cooling system and leads out, so that the temperature of the cooling liquid is reduced again to absorb the heat in the gun body, that is, a complete circulating cooling water path is formed, the continuous cooling of the charging gun is realized, thereby ensuring that the charging gun can maintain high-power operation for a long time.

[0023] As shown in Figures 3-5 The inside of the protection shell 1 is provided with a fixing cylinder 11, two sleeve holes 12 are formed in one end of the inside of the fixing cylinder 11, a positioning ring 16 is fixed on the surface of one end of the DC terminal 8, a fixing ring 17 is fixedly inserted on the DC terminal 8, the sleeve hole 12 is fixedly inserted with the DC terminal 8, the sleeve hole 12 is sleeved between the positioning ring 16 and the fixing ring 17, two clamping grooves 18 are formed in one end of the inside of the charging end 9, a gasket 19 is slidingly inserted on the surface of the DC terminal 8, the gasket 19 is sleeved between the clamping groove 18 and the fixing ring 17, a plurality of staggered grooves 23 are formed on the surface of both ends of the copper elbow pipe 6, a plurality of mounting grooves 22 are formed on the inner wall surface of both ends of the liquid cooling pipe 7, and the staggered grooves 23 and the mounting grooves 22 are engaged with each other.

[0024] In use, when the protection shell 1, the charging end 9 and the DC terminal 8 are assembled, the staff will first insert the DC terminal 8 in the inside of the sleeve hole 12, at this time, the sleeve hole 12 is sleeved between the positioning ring 16 and the fixing ring 17, thereby increasing the firmness of the installation position of the DC terminal 8 in the inside of the protection shell 1, then when the staff installs the protection shell 1 and the charging end 9 together, as the charging end 9 moves towards the protection shell 1, the gasket 19 is pressed between the fixing ring 17 and the clamping groove 18, thereby increasing the firmness of the installation position of the DC terminal 8 in the inside of the charging gun, and at the same time, it can also absorb and alleviate part of the vibration and impact, thereby increasing the safety of the DC terminal 8 during use.

[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A new type of liquid-cooled direct current charging gun, comprising a mounting pipe (3) arranged inside a protective shell (1), characterized in that, The inside of the protection shell (1) is provided with a connecting pipe (4), the mounting pipe (3) is fixedly sleeved with the connecting pipe (4), the inside of the connecting pipe (4) is provided with a heat dissipation ceramic (5), the inside of the connecting pipe (4) is provided with a copper elbow (6), the heat dissipation ceramic (5) and the copper elbow (6) are filled with sealing heat-conducting glue, one end of the copper elbow (6) is fixedly inserted with a liquid cooling water pipe (7), the other end of the liquid cooling water pipe (7) is fixedly inserted with the other end of the copper elbow (6), the inside of the protection shell (1) is fixedly provided with two DC terminals (8), the inside of the protection shell (1) is detachably inserted with a charging end (9), one end of the charging end (9) is provided with two storage holes (10), the DC terminals (8) are fixedly inserted with the storage holes (10), and the bottom surface of the mounting pipe (3) is provided with a temperature control sensor (2).

2. The novel liquid-cooled DC charging gun according to claim 1, characterized in that: The surface of the charging end (9) is provided with a positioning groove (13), the inside of the positioning groove (13) is provided with a limiting groove (14), the inner wall surface of the protection shell (1) is fixedly provided with a limiting ring (15), and the limiting groove (14) and the limiting ring (15) are slidably arranged.

3. The novel liquid-cooled DC charging gun according to claim 1, characterized in that: The bottom surface of the mounting pipe (3) is fixedly provided with two fixed flaps (21), the two fixed flaps (21) and the temperature control sensor (2) are slidably arranged, and the bottom surface of the mounting pipe (3) is fixedly provided with two limiting flaps (20), the two limiting flaps (20) and the two corners of the temperature control sensor (2) are slidably arranged, respectively.

4. The novel liquid-cooled DC charging gun according to claim 1, characterized in that: The inside of the protection shell (1) is provided with a fixed cylinder (11), one end of the inside of the fixed cylinder (11) is provided with two sleeving holes (12), the surface of one end of the DC terminal (8) is fixedly provided with a positioning ring (16), the DC terminal (8) is fixedly inserted with a fixed ring (17), the sleeving hole (12) and the DC terminal (8) are fixedly inserted, and the sleeving hole (12) is sleeved between the positioning ring (16) and the fixed ring (17).

5. The novel liquid-cooled DC charging gun according to claim 1, characterized in that: The inside of the charging end (9) is provided with two clamping grooves (18) at one end, the surface of the DC terminal (8) is slidably inserted with a gasket (19), and the gasket (19) is sleeved between the clamping groove (18) and the fixed ring (17).

6. The novel liquid-cooled DC charging gun according to claim 1, characterized in that: The surfaces of the two ends of the copper elbow (6) are provided with a plurality of staggered grooves (23), the inner wall surfaces of the two ends of the liquid cooling water pipe (7) are provided with a plurality of mounting grooves (22), and the staggered grooves (23) and the mounting grooves (22) are intermeshed.

Images