Hybrid connection device

• US 10,352,752 B2
• Filed: 10/31/2014
• Issued: 07/16/2019
• Est. Priority Date: 11/01/2013
• Status: Active Grant

• Current Assignee: Stratec SE
• Original Assignee: Stratec SE
• Inventors: Burkart, Michael, Trump, Martin
• Primary Examiner(s): McNally, Kerri L
• Assistant Examiner(s): Tran, Thang D
• Application Number:
  US14/529,953
• Publication Number:
  US 20150123809A1
• Time in Patent Office: 1,719 Days
• Field of Search: 34087002, 340620-627
• CPC Class Codes: G01F 23/802 Particular electronic circuits for digital processing equipment
• CPC Class Codes: G01F 23/806 Particular electronic circuits for handling non-digital processing equipment
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04Q 9/14 Calling by using pulses

Abstract

A connection device for providing both a connection for liquid transport and a connection for the transport of electrical energy is disclosed. The connection device comprises a first part and a second part, which detachably connect to one another such that a first liquid conduit comprised in the first part connects with a second liquid conduit comprised in the second part, and a primary coil comprised in the first part inductively couples to a secondary coil comprised in the second part, wherein the first part further comprises a first electronic circuit electrically connected to the primary coil, and the second part further comprises a second electronic circuit electrically connected to the secondary coil.

Claims

1. A connection device for providing both a connection for liquid transport and a connection for the transport of electrical energy, the connection device comprising:

a first part comprising;

a first liquid conduit;

a primary coil;

a first electronic circuit electrically connected to the primary coil; and

a first ferrite layer interposed between the primary coil and the first electronic circuit, wherein the first ferrite layer shields electromagnetic fields of the primary coil towards the first electronic circuit; and

a second part detachably connected to the first part, the second part comprising;

a second liquid conduit detachably connected to the first liquid conduit in the first part;

a secondary coil inductively coupled to the primary coil when the first and second parts are connected;

a second electronic circuit electrically connected to the secondary coil, said second electronic circuit comprising a sensing element come into contact with the liquid; and

a second ferrite layer is interposed between the secondary coil and the second electronic circuit, wherein the second ferrite layer shields the electromagnetic fields of the secondary coil towards the second electronic circuit, wherein said second part is connected to a container for holding the liquid such that the secondary coil remains outside said container, said sensing element contacts the liquid inside said container, and said first part remains outside said container.

2. The connection device according to claim 1, wherein the primary coil is a copper structure on at least one first PCB, and/or the secondary coil is a copper structure on at least a second PCB.

3. The connection device according to claim 1, wherein the primary coil is electrically connected to a source of electrical power.

4. The connection device according to claim 1, wherein the first part and the second part further are communicatively coupled.

5. The connection device according to claim 4, wherein the first part comprises a signal amplifier for amplifying signals from the second part prior to transmitting them to a digital signal processor.

6. The connection device according to claim 1, wherein the sensing element comprises a pressure sensor, an electrochemical sensor, an optical sensor, or a level sensor.

7. The connection device according to claim 1, wherein the second electronic circuit further comprises a signal transmitter electrically connected to said sensing element and the first part further comprises a signal receiver for receiving a sensing value from the signal transmitter.

8. The connection device according to claim 7, wherein said signal transmitter is electrically connected to said secondary coil.

9. The connection device according to claim 7, wherein said signal transmitter is a transmitting antenna and said signal receiver is a receiving antenna.

10. The connection device according to claim 7, wherein said signal transmitter is a laser and said signal receiver is a photodiode.

11. A method for simultaneous liquid transport and inductive transport of energy, the method comprising the steps of:

connecting a first part and a second part of a connection device such that a first liquid conduit in the first part connects with a second liquid conduit in the second part, and a primary coil in the first part inductively couples to a secondary coil in the second part upon connection of first part and second part;

connecting said connection device to a container for holding the liquid, wherein said first part and said secondary coil in said second part remain outside of said container and a sensing element in said second part is in said container and contacts said liquid in said container;

transporting the liquid through said first conduit to said second conduit and through said second conduit into said container;

applying electrical energy to said primary coil;

sensing a property of liquid in said container and generating a sensing value pertaining to said property with said sensing element;

transmitting said sensing value to an electronic circuit in said first part; and

receiving said transmitted sensing value in said electronic circuit in said first part.

12. The method according to claim 11, wherein the transmitting of said sensing value comprises modulating a load connected to the secondary coil and wherein said receiving said transmitted sensing value comprises detecting changes in current and/or voltage generated in the first part.

13. The method according to claim 12, wherein the modulating of the load comprises pulse-width modulation.

14. The method according to claim 11, further comprising controlling the transporting of liquid into the container based upon the sensing value received in the first part.

15. A connection device for providing both a connection for liquid transport and a connection for the transport of electrical energy, comprising:

a first part comprising;

a first liquid conduit;

a primary coil; and

a first electronic circuit electrically connected to said primary coil; and

a second part detachably connected to said first part, said second part comprising;

a second liquid conduit;

a secondary coil; and

a second electronic circuit electrically connected to said secondary coil, said second electronic circuit comprising a sensing element come into contact with the liquid;

wherein said second part is connected to a container for holding the liquid such that the secondary coil remains outside said container and said sensing element contacts the liquid inside said container;

wherein said first liquid conduit connects with said second liquid conduit and said primary coil inductively couples to said secondary coil upon connection of first part and second part; and

wherein a first ferrite layer is interposed between the primary coil and the first electronic circuit; and

/or a second ferrite layer is interposed between the secondary coil and the second electronic circuit for shielding electromagnetic fields of the respective coil towards its electronic circuit.