Cooling unit for a charging column, and charging column having a cooling unit

Patent metadata

Field	Value
Publication number	US-11148534-B2
Application number	US-201816026164-A
Country	US
Kind code	B2
Filing date	Jul 3, 2018
Priority date	Jul 12, 2017
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

A cooling unit for a charging column includes a heat exchanger with first connections and second connections and that is set up for cooling a closed secondary coolant circuit of the charging column if the first connections are fluidically connected to a common primary coolant circuit of the electric filling station and the second connections are fluidically connected to the secondary coolant circuit. Also described herein is a corresponding charging column.

First claim

What is claimed is:

1. A charging column of an electric filling station, the charging column comprising:
(i) a housing having side walls in the form of bracket plates, an interior region, a roof positioned between the bracket plates, a cable holder positioned beneath the roof and between the bracket plates, the cable holder being configured for receiving a cooled charging cable,
(ii) the cooled charging cable for charging an electric vehicle, and
(iii) an exchangeable cooling unit positioned entirely within the interior region, the exchangeable cooling unit comprising a heat exchanger with first connections and second connections, said first connections including hoses that are configured to be connected to a common primary coolant circuit that is shared between multiple charging columns of said electric filling station, and said second connections being configured to be connected to a closed secondary coolant circuit of the charging column including the cooled charging cable; said heat exchanger being configured to transfer heat from fluid in said secondary cooling circuit to a separate fluid in said common primary coolant circuit.

2. The charging column as claimed in claim 1 , wherein the cooling unit further comprises a pump, and the pump is fluidically connected to the second connections.

3. The charging column as claimed in claim 2 , wherein the cooling unit further comprises a compensation vessel, and the compensation vessel is fluidically connected to the pump.

4. The charging column as claimed in claim 1 , wherein the second connections of the cooling unit are fluidically connected to the closed secondary coolant circuit.

5. The charging column as claimed in claim 1 , wherein the secondary coolant circuit is filled with a slow-reacting, inert, non-conductive fluid.

6. The charging column as claimed in claim 1 , wherein the secondary coolant circuit is filled with methoxy heptafluoropropane, methoxy nonafluoropropane, hydrofluoroether, or fluorinated ketone.

7. The charging column as claimed in claim 1 , wherein the hoses have shut-off valves and connection points for connection to the primary coolant circuit, and the shut-off valves are arranged at the connection points.

8. The charging column as claimed in claim 1 , wherein the charging column comprises a left-hand outer wall with a left-hand bracket plate of said bracket plates, a right-hand outer wall with a right-hand bracket plate of said bracket plates, and the roof having a drip edge, wherein the bracket plates bear externally against the outer walls, and the roof is arranged in a form-fitting manner between the bracket plates.

9. The charging column as claimed in claim 1 , wherein the cable holder includes two injection moldings, and the cable holder is arranged in a form-fitting manner between the bracket plates and is covered by the roof.

10. The charging column as claimed in claim 8 , wherein one of the outer walls has a locking mechanism.

Assignees

• Porsche Ag

Inventors

• Reber Volker
• Köhler David
• Götz Stefan

Classifications

• B60L53/31 Primary

  Charging columns specially adapted for electric vehicles · CPC title

• B60L53/302

  Cooling of charging equipment · CPC title

• B60L53/18 Primary

  Cables specially adapted for charging electric vehicles · CPC title

• H05K7/20272

  Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds · CPC title

• Y02T10/7072

  Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors · CPC title