Battery assembly for wireless field devices

Patent metadata

Field	Value
Publication number	US-2025141026-A1
Application number	US-202318494884-A
Country	US
Kind code	A1
Filing date	Oct 26, 2023
Priority date	Oct 26, 2023
Publication date	May 1, 2025
Grant date	—

Abstract

An intrinsically-safe battery assembly for field devices, the intrinsically-safe battery assembly includes an intrinsically-safe battery and polymeric chassis. In an example, the polymeric chassis is removably coupled to the intrinsically-safe battery and has at least one retention mechanism configured to engage the intrinsically-safe battery. In another example, the polymeric structure has at least one battery ejection mechanism configured to eject the intrinsically-safe battery. A field device is also provided.

First claim

What is claimed is:

1 . An intrinsically-safe battery assembly for field devices, the intrinsically-safe battery assembly comprising:
an intrinsically-safe battery; and a polymeric chassis removably coupled to the intrinsically-safe battery, the polymeric structure having at least one retention mechanism configured to engage the intrinsically-safe battery.

2 . The intrinsically-safe battery assembly of claim 1 , wherein the at least one retention mechanism includes a plurality of retention mechanisms and wherein the plurality of retention mechanisms is configured to engage an outer diameter of the intrinsically-safe battery.

3 . The intrinsically-safe battery assembly of claim 2 , wherein engagement of the plurality of retention mechanisms with the outer diameter of the intrinsically-safe battery generates a retention force urging the intrinsically-safe battery into contact with the polymeric chassis.

4 . The intrinsically-safe battery assembly of claim 3 , wherein the plurality of retention mechanisms includes four retention mechanisms.

5 . The intrinsically-safe battery assembly of claim 1 , and wherein the polymeric chassis further comprises at least one battery ejector mechanism.

6 . The intrinsically-safe battery assembly of claim 5 , wherein the at least one battery ejection mechanism includes a pair of ejection mechanisms disposed on opposite sides of the intrinsically-safe battery.

7 . The intrinsically-safe battery assembly of claim 6 , wherein ejection of the intrinsically-safe battery occurs when the pair of ejection mechanisms are squeezed together sufficiently.

8 . The intrinsically-safe battery assembly of claim 6 , wherein ejection occurs when a force generated by the ejection mechanisms being squeezed together exceeds a retention force of the at least one retention mechanism.

9 . The intrinsically-safe battery assembly of claim 1 , wherein the intrinsically-safe battery includes at least one alignment feature and the polymeric chassis includes a second alignment feature and wherein the alignment features cooperate to ensure insertion of the intrinsically-safe battery into the polymeric chassis without rotation.

10 . An intrinsically-safe battery assembly for field devices, the intrinsically-safe battery assembly comprising:
an intrinsically-safe battery; and a polymeric chassis removably coupled to the intrinsically-safe battery, the polymeric structure having at least one battery ejection mechanism configured to eject the intrinsically-safe battery.

11 . The intrinsically-safe battery assembly of claim 10 , wherein the at least one battery ejection mechanism includes a pair of ejection mechanisms disposed on opposite sides of the intrinsically-safe battery.

12 . The intrinsically-safe battery assembly of claim 11 , wherein ejection of the intrinsically-safe battery occurs when the pair of ejection mechanisms are squeezed together.

13 . A field device comprising:
an intrinsically-safe battery; a polymeric chassis removably coupled to the intrinsically-safe battery, the polymeric structure having at least one retention mechanism configured to engage the intrinsically-safe battery and at least one ejection feature configured to eject the intrinsically-safe battery; an electronics housing coupled to the polymeric chassis; field device electronics disposed within the electronics housing and configured to measure a sensor signal and provide an output.

14 . The field device of claim 13 , wherein the at least one retention mechanism includes a plurality of retention mechanisms and wherein the plurality of retention mechanisms is configured to engage an outer diameter of the intrinsically-safe battery.

15 . The field device of claim 14 , wherein engagement of the plurality of retention mechanisms with the outer diameter of the intrinsically-safe battery generate a retention force urging the intrinsically-safe battery into contact with the polymeric chassis.

16 . The field device of claim 13 , wherein the field device electronics includes wireless communication circuitry.

17 . The field device of claim 13 , wherein the at least one ejection feature includes a pair of ejection mechanisms disposed on opposite sides of the intrinsically-safe battery.

18 . The field device of claim 17 , wherein ejection of the intrinsically-safe battery occurs when the pair of ejection mechanisms are squeezed together.

19 . A battery assembly for field devices, the battery assembly comprising:
a battery; and a polymeric chassis removably coupled to the battery, the polymeric structure having at least one retention mechanism configured to engage the battery.

20 . The battery assembly of claim 19 , wherein the at least one retention mechanism includes a plurality of retention mechanisms and wherein the plurality of retention mechanisms is configured to engage an outer diameter of the battery.

21 . The battery assembly of claim 20 , wherein engagement of the plurality of retention mechanisms with the outer diameter of the battery generates a retention force urging the battery into contact with the polymeric chassis.

22 . The battery assembly of claim 21 , wherein the plurality of retention mechanisms includes four retention mechanisms.

23 . The battery assembly of claim 19 , and wherein the polymeric chassis further comprises at least one battery ejector mechanism.

24 . The battery assembly of claim 23 , wherein the at least one battery ejection mechanism includes a pair of ejection mechanisms disposed on opposite sides of the battery.

25 . The battery assembly of claim 24 , wherein ejection of the battery occurs when the pair of ejection mechanisms are squeezed together sufficiently.

26 . The battery assembly of claim 25 , wherein ejection occurs when a force generated by the ejection mechanisms being squeezed together exceeds a retention force of the at least one retention mechanism.

27 . The battery assembly of claim 19 , wherein the battery includes at least one alignment feature and the polymeric chassis includes a second alignment feature and wherein the alignment features cooperate to ensure insertion of the battery into the polymeric chassis without rotation.

Assignees

• Rosemount Inc

Inventors

• Tarras Ryan C
• Gindele Greg E
• Robinson Cory M
• Holm Nathan K
• Swick Brandon L
• Chhuoy Hun

Classifications

• H01M50/242

  adapted for protecting batteries against vibrations, collision impact or swelling · CPC title

• H01M50/24

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/256

  Carrying devices, e.g. belts · CPC title

• H01M50/227

  Organic material · CPC title

• H01M50/244 Primary

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title