Liquid-cooled charging gun

Abstract

The utility model discloses a liquid-cooled charging gun, which relates to the field of charging guns and comprises a first shell main body and a second shell main body, the first shell main body comprises a first shell, and the second shell main body comprises a third shell. A continuous clamping strip is integrally formed on the cross section of the side, close to the second shell body, of the first shell body, and a continuous groove used in cooperation with the clamping strip is formed in the cross section of the side, close to the first shell body, of the second shell body. In addition, the charging gun is integrally free of screw holes in appearance, the appearance is integrated and more attractive, the appearance of the charging gun is made to be higher-end, the charging gun is made to be better matched with the new technology, the advanced design gives a better use feeling to a user, and the design without the screw holes enables the charging gun not to be contaminated in the screw holes even if the charging gun is used outdoors. And the surface can be kept clean even if being used for a long time.

Description

Technical Field

[0001] The utility model relates to the field of charging guns, in particular to a liquid-cooling charging gun. Background Art

[0002] A liquid-cooled charging gun is a device used to charge electric vehicles (EVs) that features a cooling system. This cooling system typically works by flowing a liquid coolant (such as water) through the inside of the charging gun to prevent the gun from overheating during charging, thereby improving charging efficiency and safety.

[0003] The working principle of the liquid-cooled charging gun mainly includes the liquid cooling system, current transmission and coolant circulation. The liquid cooling system consists of a set of water pipes, a water pump and a radiator, which are used to dissipate the heat generated when the current is conducted in the charging gun. The current transmission transmits the current from the power source to the battery of the electric vehicle through the wiring part in the charging gun to achieve charging. The coolant circulation is to use the water pump to flow the coolant through the radiator in the liquid-cooled charging gun to absorb and take away the heat generated during the current transmission process.

[0004] Compared with traditional charging methods, liquid-cooled charging guns have many advantages. First, it can promptly remove the heat generated during the charging process, thereby improving charging efficiency and extending the service life of the charging gun. Secondly, liquid-cooled charging guns have high heat dissipation efficiency, reduce energy consumption, and are in line with the development trend of green environmental protection. In addition, liquid-cooled charging guns also have the characteristics of larger current and faster charging speed. At the same time, the gun line is lighter, the charging equipment is light, less heat is generated, heat is dissipated quickly, and safety is high.

[0005] However, because charging piles and charging guns are usually installed outdoors and are exposed to wind and sun all year round, it is easy for the connection holes to leak, get dirty, or even have stains. In minor cases, it will affect the appearance of the charging gun. If the damage is serious, it may also cause damage to the outer shell of the charging gun, which can easily cause safety hazards. In addition, traditional charging guns have many screw holes, which greatly affect the appearance. Liquid-cooled charging guns are high-end, cutting-edge and novel technology, so the screw holes will directly affect their sales.

[0006] Therefore, it is necessary to propose a liquid-cooled charging gun to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a liquid-cooled charging gun to solve the above-mentioned problem that the screw holes are unsightly, easy to hide dirt or even leak water.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid-cooled charging gun, comprising a first shell body and a second shell body, the first shell body comprising a first shell, the second shell body comprising a third shell, a continuous clip strip is integrally formed on a cross section of one side of the first shell body close to the second shell body, a continuous groove for use with the clip strip is provided on a cross section of one side of the second shell body close to the first shell body, the first shell body and the second shell body are spliced ​​to form a charging gun shell, a connector body is detachably installed at one end of the charging gun shell, and a fixing component is installed at the end of the charging gun shell away from the connector body, and the fixing component is used to improve the connection strength between the first shell body and the second shell body.

[0009] Preferably, the fixing component includes a first locking inner cylinder and a second locking inner cylinder, the first locking inner cylinder and the second locking inner cylinder are both made of straight threads and tapered threads by an integrated molding process, the first locking inner cylinder and the second locking inner cylinder are combined to form a complete sleeve, the locking sleeve is installed on the outside of the sleeve through threaded cooperation, the first locking inner cylinder is fixedly installed at the end of the first outer shell body, and the second locking inner cylinder is fixedly installed at the end of the second outer shell body.

[0010] Preferably, the first shell body is made of a first shell, a second shell, and a mounting head through an integrated molding process, and the second shell body is made of a third shell, a fourth shell, a mounting clamp, and a connecting block through an integrated molding process, a first mounting groove and a through groove running through the mounting head are provided in the middle part, a clamping slot is provided on the side of the mounting head close to the second shell body, the mounting clamp is clamped inside the first mounting groove, and the connecting block is clamped inside the clamping slot.

[0011] Preferably, the connector body includes a plug body, one end of the plug body is provided with a mounting plate through an integrated molding process, a plurality of evenly distributed slots are provided on an end face of the plug body away from the mounting plate, contact conductors are fixedly installed inside the slots, a movable plate is slidingly provided inside the slots, a spring is fixedly installed between the movable plate and the slots, the movable plate is slidably sleeved on the outer surface of the contact conductor, the plug body is placed inside the through slot, and the mounting plate is placed inside the first placement slot.

[0012] Preferably, a handle is fixedly installed on the inclined side of the outer surface of the charging gun housing, and a button is installed on the handle. The second housing and the fourth housing are spliced ​​to form a locking housing, and a lock hook is installed inside the locking housing, and the end of the lock hook extends to the outside of the locking housing.

[0013] Preferably, one end of the locking sleeve away from the first locking inner cylinder is integrally formed with a rubber sleeve, and a charging cable is movablely mounted inside the rubber sleeve.

[0014] Preferably, baffles are fixedly installed on both sides of the outer ring of the locking sleeve.

[0015] Preferably, plastic inner cylinders are fixedly mounted on the inner circles of the first locking inner cylinder and the second locking inner cylinder.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model not only improves the waterproofness of the device by setting the card strip and the groove, but also has no screw holes in the overall appearance, and the integrated appearance is more beautiful, making the appearance of the charging gun more high-end, making it more compatible with new technologies and cutting-edge designs, giving users a better use experience, and the design without screw holes means that even if it is used outdoors, the screw holes will not be contaminated, and the surface can be kept clean even if it is used for a long time;

[0018] The utility model provides a fixing component. When installing, it is only necessary to insert the installation card into the first placement groove, and then rotate the locking sleeve. The first shell body and the second shell body will be tightly connected under the continuous rotation of the locking sleeve, so that the installation is faster. If the charging gun shell is damaged due to falling or weathering, it can be quickly replaced, so that the installation and maintenance efficiency is higher.

[0019] The device is provided with a movable plate. When in use, the movable plate will be pushed so that the contact conductor can be connected to the car charging interface. If it is not in use, the spring will push the movable plate to move to protect the contact conductor. The inner wall of the slot can also be cleaned during the movement of the movable plate, and biological invasion of the connector body can be prevented. Self-protection measures are taken to improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the liquid-cooled charging gun of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the first shell body in the utility model.

[0022] Figure 3 It is a structural schematic diagram of the second shell body in the utility model.

[0023] Figure 4 It is a structural schematic diagram of the fixing components in the utility model.

[0024] Figure 5 It is a structural schematic diagram of the second locking inner cylinder in the utility model.

[0025] Figure 6 It is a cross-sectional view of the charging gun housing in the utility model.

[0026] Figure 7 It is a schematic diagram of the cross-section structure of the connector body in the utility model.

[0027] In the figure: 1. first shell body; 2. second shell body; 3. connector body; 4. handle; 5. fixing part; 6. charging cable; 7. lock hook; 11. first shell; 12. second shell; 13. mounting head; 14. first mounting groove; 15. through groove; 16. card slot; 21. third shell; 22. fourth shell; 23. mounting card head; 24. connecting card block; 31. plug body; 32. mounting plate; 33. slot; 34. contact conductor; 35. spring; 36. moving plate; 41. button; 51. first locking inner cylinder; 52. second locking inner cylinder; 53. locking sleeve; 54. rubber sleeve; 55. baffle; 56. plastic inner cylinder; 101. card strip; 201. groove; 521. straight thread; 522. tapered thread. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The utility model provides Figure 1-Figure 7 A liquid-cooled charging gun shown in the figure includes a first shell body 1 and a second shell body 2, the first shell body 1 includes a first shell 11, the second shell body 2 includes a third shell 21, a continuous clamping strip 101 is integrally formed on the cross section of one side of the first shell body 1 close to the second shell body 2, and a continuous groove 201 used in conjunction with the clamping strip 101 is opened on the cross section of the side of the second shell body 2 close to the first shell body 1, the clamping strip 101 is convex in shape, and the groove 201 is concave in shape. The concave-convex structure makes the connection of the device tighter, prevents the external environment from corroding the inside of the device, and improves the waterproofness of the device. The first shell body 1 and the second shell body 2 are spliced ​​to form a charging gun shell, one end of the charging gun shell is detachably installed with a connector body 3, and the end of the charging gun shell away from the connector body 3 is installed with a fixing component 5, and the fixing component 5 is used to improve the connection strength between the first shell body 1 and the second shell body 2.

[0030] The first shell body 1 is made of a first shell 11, a second shell 12, and a mounting head 13 through an integrated molding process. The second shell body 2 is made of a third shell 21, a fourth shell 22, a mounting clamp 23, and a connecting block 24 through an integrated molding process. The middle of the mounting head 13 is provided with a first mounting groove 14 and a through groove 15 that runs through the mounting head 13. A clamping groove 16 is provided on one side of the mounting head 13 close to the second shell body 2. The mounting clamp 23 is clamped inside the first mounting groove 14, and the connecting block 24 is clamped inside the clamping groove 16.

[0031] The first shell body 1, the second shell body 2, the card strip 101, and the groove 201 are all made of PI material. PI is polyimide, which has excellent heat resistance and a decomposition temperature of 500°C~600°C. It is one of the most stable polymers at this stage. This characteristic enables polyimide to maintain its stable performance in a high temperature environment, and polyimide has good strength and stiffness, excellent fatigue resistance and low friction coefficient. Its tensile strength is generally above 100MPa. This mechanical property gives polyimide a significant advantage in the manufacture of high-strength and high-wear-resistant products. The dielectric constant of polyimide materials is usually around 3.4, with high dielectric strength and excellent insulation performance. This makes polyimide widely used in electrical insulation, electronic packaging and other fields. Therefore, using PI material as the shell material is not only light in weight and high in strength, but also can prevent the charging gun from generating high temperature to damage the shell, and its good insulation can also prevent leakage.

[0032] During installation, first place the connector body 3 into the through groove 15, and then place the installation clamp 23 into the first placement groove 14. At the same time, the connecting clamp block 24 will also enter the inside of the clamp slot 16, and then the clamp strip 101 will be snapped into the inside of the groove 201 as a whole to form a complete charging gun housing. The interior of the charging gun housing is provided with circuit boards, temperature measuring elements, cooling pipes, coolant circulation pipes, charging cables and other components to achieve the effect of a liquid-cooled charging gun.

[0033] The fixing component 5 includes a first locking inner cylinder 51 and a second locking inner cylinder 52. The first locking inner cylinder 51 is fixedly installed at the end of the first shell body 1, and the second locking inner cylinder 52 is fixedly installed at the end of the second shell body 2. The first locking inner cylinder 51 and the second locking inner cylinder 52 are both made of straight threads 521 and tapered threads 522 by an integrated molding process. The first locking inner cylinder 51 and the second locking inner cylinder 52 are combined to form a complete sleeve. A locking sleeve 53 is installed on the outside of the sleeve through threaded cooperation. A rubber sleeve 54 is integrally molded at one end of the locking sleeve 53 away from the first locking inner cylinder 51. The internal movable card of the rubber sleeve 54 is provided with a charging cable 6. Baffles 55 are fixedly installed on both sides of the outer ring of the locking sleeve 53. Plastic inner cylinders 56 are fixedly installed on the inner rings of the first locking inner cylinder 51 and the second locking inner cylinder 52.

[0034] Because there are a series of components inside the charging gun, during installation, the first shell body 1 and the second shell body 2 will be supported, and the end away from the installation head 13 will be tilted. Therefore, the locking sleeve 53 is rotated at this time to make the first locking inner cylinder 51 and the second locking inner cylinder 52 approach each other. A section of the tapered thread 522 can quickly shorten the distance between the first shell body 1 and the second shell body 2. When the locking sleeve 53 is completely sleeved on the outside of the straight thread 521, the first shell body 1 and the second shell body 2 are installed, the first shell body 1 and the second shell body 2 are tightly spliced, the clamping strip 101 is fully engaged into the interior of the groove 201, and the internal components are also pressed.

[0035] Because charging piles and charging guns are usually installed outdoors and are exposed to wind and sun all year round, it is easy for them to leak, get dirty, or even have stains on their connection holes. In minor cases, it will affect the appearance of the charging gun. If the damage is serious, it may also cause damage to the outer shell of the charging gun, which can easily cause safety hazards. Traditional charging guns have many screw holes, which greatly affect the appearance. Liquid-cooled charging guns are high-end, cutting-edge and novel technology, so the screw holes will directly affect their sales.

[0036] In summary, the utility model not only improves the waterproofness of the device by setting the card strip 101 and the groove 201, but also has an overall appearance without screw holes, and the integrated appearance is more beautiful, making the appearance of the charging gun more high-end, making it more compatible with new technologies and cutting-edge designs, giving users a better use experience, and the design without screw holes means that even if it is used outdoors, the screw holes will not be contaminated, and the surface can be kept clean even after a long period of use.

[0037] Furthermore, by setting a fixing component 5, during installation, it is only necessary to insert the installation clamp 23 into the first mounting groove 14, and then rotate the locking sleeve 53. Under the continuous rotation of the locking sleeve 53, the first shell body 1 and the second shell body 2 will be tightly connected, making the installation faster. If the charging gun shell is damaged due to falling or weathering, it can be quickly replaced, making the installation and maintenance efficiency higher.

[0038] The connector body 3 includes a plug body 31, one end of which is provided with a mounting plate 32 through an integrated molding process, a plurality of evenly distributed slots 33 are provided on the end surface of the plug body 31 away from the mounting plate 32, a contact conductor 34 is fixedly installed inside the slot 33, a movable plate 36 is provided for sliding inside the slot 33, a spring 35 is fixedly installed between the movable plate 36 and the slot 33, the movable plate 36 is slidably sleeved on the outer surface of the contact conductor 34, the plug body 31 is placed inside the through groove 15, the mounting plate 32 is placed inside the first placement groove 14, during installation, the mounting clamp 23 and the mounting head 13 can tightly press the mounting plate 32, thereby fixing the connector body 3.

[0039] When using the charging pile, sometimes due to poor operation, the personnel fail to put the charging gun back to its original position as required after use, resulting in the charging gun being dropped on the ground, which may cause the charging gun to be collided and damaged. In addition, the charging gun is exposed to the outside for a long time. If a gecko or other insects crawl into the inside of the socket, the charging gun may be damaged and discharge may occur. In addition, the socket of the charging gun exposed to the outside may be contaminated, and even sludge may be generated inside. In this way, when the next car owner uses it, the charging port of his car may be damaged, and even cause safety hazards. In recent years, many countermeasures have been adopted to prevent it, but this situation still cannot be completely solved.

[0040] Therefore, the device is provided with a movable plate 36. When in use, the movable plate 36 will be pushed so that the contact conductor 34 can be connected to the car charging interface. If it is not in use, the spring 35 will push the movable plate 36 to move to protect the contact conductor 34. In the process of moving the movable plate 36, the inner wall of the slot 33 can be cleaned, and biological invasion of the connector body 3 can be prevented. Self-protection measures are taken to improve the safety of the device.

[0041] A handle 4 is fixedly installed on the inclined side of the outer surface of the charging gun housing, and a button 41 is installed on the handle 4. The second housing 12 and the fourth housing 22 are spliced ​​to form a locking housing. A lock hook 7 is installed inside the locking housing, and the end of the lock hook 7 extends to the outside of the locking housing. When the button 41 is pressed, the lock hook 7 will be pried. This is a common button unlocking function, which is not the focus of the present utility model, so it will not be elaborated here.

[0042] Working principle: During installation, first place the connector body 3 into the through groove 15, and then place the installation card head 23 into the first placement groove 14. At the same time, the connecting card block 24 will also enter the slot 16, and then the card strip 101 will be snapped into the groove 201 as a whole to form a complete charging gun housing. The interior of the charging gun housing is provided with circuit boards, temperature measuring elements, cooling pipes, coolant circulation pipes, charging cables and other components to achieve the effect of a liquid-cooled charging gun.

[0043] Because there are a series of components inside the charging gun, during installation, the first shell body 1 and the second shell body 2 will be supported, and the end away from the installation head 13 will be tilted. Therefore, the locking sleeve 53 is rotated at this time to make the first locking inner cylinder 51 and the second locking inner cylinder 52 approach each other. A section of the tapered thread 522 can quickly shorten the distance between the first shell body 1 and the second shell body 2. When the locking sleeve 53 is completely sleeved on the outside of the straight thread 521, the first shell body 1 and the second shell body 2 are installed, the first shell body 1 and the second shell body 2 are tightly connected, the clamping strip 101 is fully engaged into the interior of the groove 201, and the internal components are also pressed.

[0044] When in use, the movable plate 36 will be pushed so that the contact conductor 34 is connected to the car charging port. If not in use, the spring 35 will push the movable plate 36 to move to protect the contact conductor 34. In the process of moving the movable plate 36, the inner wall of the slot 33 can be cleaned, and biological invasion of the connector body 3 can be prevented.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid-cooled charging gun, comprising a first housing body (1) and a second housing body (2), characterized in that: The first shell body (1) comprises a first shell (11), and the second shell body (2) comprises a third shell (21); a continuous clamping strip (101) is integrally formed on a cross section of a side of the first shell body (1) close to the second shell body (2); a continuous groove (201) for use with the clamping strip (101) is provided on a cross section of a side of the second shell body (2) close to the first shell body (1); the first shell body (1) and the second shell body (2) are spliced ​​together to form a charging gun shell; a connector body (3) is detachably mounted on one end of the charging gun shell; a fixing component (5) is mounted on an end of the charging gun shell away from the connector body (3); the fixing component (5) is used to improve the connection strength between the first shell body (1) and the second shell body (2).

2. The liquid-cooled charging gun according to claim 1, characterized in that: The fixing component (5) comprises a first locking inner cylinder (51) and a second locking inner cylinder (52); the first locking inner cylinder (51) and the second locking inner cylinder (52) are both made of a straight thread (521) and a tapered thread (522) by an integrated molding process; the first locking inner cylinder (51) and the second locking inner cylinder (52) are combined to form a complete sleeve; a locking sleeve (53) is installed on the outside of the sleeve by threaded engagement; the first locking inner cylinder (51) is fixedly mounted on the end of the first shell body (1); and the second locking inner cylinder (52) is fixedly mounted on the end of the second shell body (2).

3. The liquid-cooled charging gun according to claim 1, characterized in that: The first shell body (1) is made of a first shell (11), a second shell (12), and a mounting head (13) through an integrated molding process; the second shell body (2) is made of a third shell (21), a fourth shell (22), a mounting clamp head (23), and a connecting clamp block (24) through an integrated molding process; a first placement groove (14) and a through groove (15) penetrating the mounting head (13) are provided in the middle of the mounting head (13); a clamping groove (16) is provided on a side of the mounting head (13) close to the second shell body (2); the mounting clamp head (23) is clamped inside the first placement groove (14), and the connecting clamp block (24) is clamped inside the clamping groove (16).

4. The liquid-cooled charging gun according to claim 1, characterized in that: The connector body (3) comprises a plug body (31), one end of the plug body (31) is provided with a mounting plate (32) through an integral molding process, a plurality of evenly distributed slots (33) are provided on an end surface of the plug body (31) away from the mounting plate (32), a contact conductor (34) is fixedly installed inside the slot (33), a movable plate (36) is slidably mounted inside the slot (33), a spring (35) is fixedly installed between the movable plate (36) and the slot (33), the movable plate (36) is slidably sleeved on the outer surface of the contact conductor (34), the plug body (31) is placed inside the through slot (15), and the mounting plate (32) is placed inside the first placement slot (14).

5. The liquid-cooled charging gun according to claim 3, characterized in that: A handle (4) is fixedly mounted on the inclined side of the outer surface of the charging gun housing, and a button (41) is mounted on the handle (4). The second housing (12) and the fourth housing (22) are spliced ​​together to form a locking housing, and a locking hook (7) is mounted inside the locking housing, with an end of the locking hook (7) extending to the outside of the locking housing.

6. The liquid-cooled charging gun according to claim 2, characterized in that: An end of the locking sleeve (53) away from the first locking inner cylinder (51) is integrally formed with a rubber sleeve (54), and a charging cable (6) is movable inside the rubber sleeve (54).

7. The liquid-cooled charging gun according to claim 2, characterized in that: Baffles (55) are fixedly mounted on both sides of the outer ring of the locking sleeve (53).

8. The liquid-cooled charging gun according to claim 2, characterized in that: Plastic inner cylinders (56) are fixedly mounted on the inner circles of the first locking inner cylinder (51) and the second locking inner cylinder (52).

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