Liquid cooling connector for alternating current charging pile
By introducing a liquid cooling system into the charging pile connector, the problem of heat accumulation during charging is solved by using coolant circulation to reduce temperature, thus improving safety and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-07
AI Technical Summary
Existing charging pile connectors generate a lot of heat during charging, posing safety hazards and shortening their service life.
A liquid-cooled connector for AC charging piles is designed. By setting a cooling chamber inside the connector and using coolant circulation for cooling, and combining it with staggered water inlets to increase the contact area between the coolant and the connector, efficient cooling is achieved.
It effectively reduces connector temperature, improves safety, extends service life, and reduces the risk of spontaneous combustion.
Smart Images
Figure CN224090053U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of liquid cooling connectors for AC charging pile design. BACKGROUND
[0002] In people's daily life, new energy vehicles are widely used, and various large and small new energy vehicles need to be charged through AC charging piles. Basically, where new energy vehicle AC charging piles can be used, charging pile connectors will be used. As can be seen, the use of charging pile connectors has spread to every corner of our lives. People's lives cannot be separated from AC charging piles. Therefore, the reasonable design of charging pile connectors has become a problem that people must overcome. At present, people's demand for new energy vehicles is increasing. New energy vehicle batteries are charged in AC charging piles. The connector of the connecting wire generates a lot of heat, which has a great safety hazard. Therefore, it is necessary to reduce the temperature of the connector on the connecting line of the AC charging pile during charging. UTILITY MODEL CONTENTS
[0003] In order to solve the problem that people cannot reduce the temperature inside the connector during charging in the conventional charging pile power line, the purpose of the utility model is to provide a liquid cooling connector for AC charging pile. The liquid cooling connector cools the connector by cooling water, thereby reducing the problems of shortened life caused by heat generation, spontaneous combustion and the like, and effectively improving safety.
[0004] In order to achieve the above technical purpose, the technical scheme of the utility model is as follows:
[0005] A liquid cooling connector for AC charging pile, comprising a hardware connecting pipe, the hardware connecting pipe is provided with a crimping part at one end and a plug-in part at the other end, the crimping part is used for crimping the wire, a cooling cavity is provided between the crimping part and the plug-in part, a water baffle is provided in the cooling cavity, the water baffle divides the cooling cavity into a first cooling chamber and a second cooling chamber, the first cooling chamber is provided with a first water inlet, the second cooling chamber is provided with a second water inlet, and the first cooling chamber and the second cooling chamber are connected through a third water inlet.
[0006] A plastic shell is provided on the outside of the hardware connecting pipe, a first insulating layer is provided on the inner wall of the first cooling chamber, and a second insulating layer is provided on the inner wall of the second cooling chamber.
[0007] Cooling liquid can enter the first cooling chamber from the first water inlet, then enter the second cooling chamber through the third water inlet, and then flow out from the second water inlet, to cool the connector. The plastic shell, the first insulating layer and the second insulating layer are blocked between the cooling liquid and the hardware connecting pipe, to realize high-voltage insulation.
[0008] The first insulation layer is connected with the plastic shell through a first water passing opening, the second insulation layer is connected with the plastic shell through a second water passing opening, and the first insulation layer and the second insulation layer are connected through a third water passing opening.
[0009] The first water passing opening and the third water passing opening are arranged in a staggered mode, and the second water passing opening and the third water passing opening are arranged in a staggered mode.
[0010] The cooling cavity is communicated with the plug-in part, the water baffle is connected on the blocking block, and the blocking block is used for separating the cooling cavity and the plug-in part.
[0011] The third water passing opening is arranged at the end of the water baffle and is formed by the water baffle and the inner wall of the cooling cavity.
[0012] The utility model discloses a cooling cavity is set between the crimping part and the plug-in part, and the cooling cavity is separated through the water baffle, so that the connector can be effectively cooled, is safe and reliable, has high stability, can protect the connector, and prolongs the service life of the connector. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model will be further explained in detail in combination with the drawings and specific embodiment.
[0014] Figure 1 It is liquid cooling connector component explosion schematic diagram.
[0015] Figure 2 It is hardware connecting pipe cross section structure schematic diagram.
[0016] Figure 3 It is hardware connecting pipe and electric wire crimping schematic diagram.
[0017] Figure 4 It is electric wire crimping after injection molding shell schematic diagram. SPECIFIC EMBODIMENT
[0018] As Figures 1-4As shown, a liquid-cooled connector for an AC charging pile includes a metal connecting tube 1. One end of the metal connecting tube is provided with a crimping part 10, and the other end of the metal connecting tube is provided with a plug-in part 4. A cooling chamber is formed between the crimping part 10 and the plug-in part 4. The cooling chamber is connected to the plug-in part 4. A water-isolated plate 5 is provided in the cooling chamber. The water-isolated plate 5 is connected to a sealing block 51. The sealing block 51 separates the cooling chamber from the plug-in part 4. The water-isolated plate 5 divides the cooling chamber into a first cooling chamber and a second cooling chamber. The first cooling chamber is provided with a first water inlet 12, and the second cooling chamber is provided with a second water inlet 13. The first cooling chamber and the second cooling chamber are connected through a third water inlet 14. The third water inlet 14 is located at the end of the water-isolated plate 5 and is formed by the water-isolated plate 5 and the inner wall of the cooling chamber. The first water inlet 12 and the third water inlet 14 are staggered.
[0019] A plastic shell 2 is provided on the outside of the hardware connecting pipe 1. A first insulating layer is provided on the inner wall of the first cooling chamber. The first insulating layer is connected to the plastic shell 2 through the first water inlet 12. A second insulating layer is provided on the inner wall of the second cooling chamber. The second insulating layer is connected to the plastic shell 2 through the second water inlet 13. The first insulating layer and the second insulating layer are connected through the third water inlet 14.
[0020] Coolant can enter the first cooling chamber through the first inlet 12, then enter the second cooling chamber through the third inlet 14, and then flow out through the second inlet 13, thereby cooling the connector. The plastic shell 2, the first insulating layer, and the second insulating layer separate the coolant and the metal connecting pipe 1, achieving high-voltage insulation.
[0021] The above embodiments do not limit the present invention in any way. All technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims
1. A liquid-cooled connector for AC charging piles, characterized in that... The device includes a metal connecting pipe, one end of which has a crimping part and the other end has a plug-in part. The crimping part is used to crimp electrical wires. A cooling chamber is provided between the crimping part and the plug-in part. A water-blocking plate is provided inside the cooling chamber, dividing the cooling chamber into a first cooling chamber and a second cooling chamber. The first cooling chamber has a first water inlet, and the second cooling chamber has a second water inlet. The first and second cooling chambers are connected through a third water inlet. A plastic shell is provided on the outside of the metal connecting pipe. A first insulating layer is provided on the inner wall of the first cooling chamber, and a second insulating layer is provided on the inner wall of the second cooling chamber.
2. The liquid-cooled connector for an AC charging pile according to claim 1, characterized in that: The first insulating layer is connected to the plastic shell through the first water inlet, the second insulating layer is connected to the plastic shell through the second water inlet, and the first insulating layer and the second insulating layer are connected through the third water inlet.
3. The liquid-cooled connector for an AC charging pile according to claim 1, characterized in that: The first and third water inlets are offset from each other, as are the second and third water inlets.
4. The liquid-cooled connector for an AC charging pile according to claim 1, characterized in that: The cooling chamber is connected to the plug-in part, and the water baffle is connected to the sealing block. The sealing block is used to separate the cooling chamber from the plug-in part.
5. A liquid-cooled connector for an AC charging pile according to claim 1 or 4, characterized in that: The third water outlet is located at the end of the baffle plate and is composed of the baffle plate and the inner wall of the cooling chamber.