Doorbell camera having active cooling

Patent metadata

Field	Value
Publication number	US-12492118-B2
Application number	US-202418630881-A
Country	US
Kind code	B2
Filing date	Apr 9, 2024
Priority date	Apr 10, 2023
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A doorbell system is disclosed. The doorbell system includes a housing, a heat-generating structure, and a cooling system. The housing is configured to be coupled to a structure. The heat-generating structure and cooling system are coupled with the housing. The cooling system includes at least one active cooling cell. The heat-generating structure may be thermally coupled with the cooling system. The active cooling cell(s) are configured to utilize vibrational motion to drive a fluid for transferring heat from the heat-generating structure. The cooling system is coupled with and contained by the housing.

First claim

What is claimed is:

1 . A doorbell system, comprising:
a housing configured to be coupled to a structure; a heat-generating structure coupled with the housing; and a cooling system including at least one active cooling cell, the heat-generating structure being thermally coupled with the cooling system, the at least one active cooling cell being configured to utilize vibrational motion to drive a fluid for transferring heat from the heat-generating structure, the cooling system being coupled with and contained by the housing.

2 . The doorbell system of claim 1 , further comprising:
a camera, coupled with the housing and the heat-generating structure, the heat-generating structure including an integrated circuit.

3 . The doorbell system of claim 2 , wherein the integrated circuit includes a processor.

4 . The doorbell system of claim 1 , wherein the housing has a smallest outside dimension of at least ten millimeters and not exceeding sixty millimeters.

5 . The doorbell system of claim 4 , wherein the smallest outside dimension of not more than forty millimeters.

6 . The doorbell system of claim 1 , wherein the at least one cell includes at least one active cooling element configured to undergo the vibrational motion when driven.

7 . The doorbell system of claim 6 , wherein the cooling system includes a heat spreader thermally coupled with the at least one cooling element.

8 . The doorbell system of claim 6 , wherein the at least one active cooling cell further includes a top plate having at least one inlet and an orifice plate having a plurality of orifices therein, the at least one cooling element being between the top plate and the orifice plate, the vibrational motion of the at least one cooling element driving the fluid through the plurality of orifices such that the fluid has a speed of at least thirty meters per second after exiting at least one of the plurality of orifices.

9 . The doorbell system of claim 1 , wherein the housing has at least one aperture therein, the aperture allowing a fluid flow through the housing.

10 . The doorbell system of claim 9 , wherein the at least one aperture includes an inlet vent on a first side of the housing and an exit vent on a second side of the housing.

11 . The doorbell system of claim 10 , further comprising:
a dust guard coupled with the inlet vent.

12 . A doorbell system, comprising:
a housing configured to be coupled to a wall of a structure; a camera; a heat-generating structure coupled with the camera and the housing; and a cooling system including a plurality of active cooling cells, the heat-generating structure being thermally coupled with the cooling system, each of the plurality of active cooling cells including a top plate having an inlet therein, a bottom plate having a plurality of orifices therein, and a cooling element between the top plate and the bottom plate, the cooling element being configured to utilize vibrational motion when driven to draw a fluid into each active cooling cell via the inlet, direct fluid toward the bottom plate, and drive the fluid through the orifices such that the fluid has a speed of at least thirty meters per second after leaving orifices, the fluid for transferring heat from the heat-generating structure, the cooling system being coupled with and contained by the housing.

13 . A method, comprising:
driving a cooling element of an active cooling cell in a cooling system to induce a vibrational motion at a frequency, the cooling system being in a doorbell system including a housing and a heat-generating structure coupled with the housing and thermally coupled with the cooling system, the cooling element being configured to undergo the vibrational motion when driven to direct a fluid for transferring heat from the heat-generating structure, the cooling system being coupled with and contained by the housing.

14 . The method of claim 13 , wherein the doorbell system further includes a camera, coupled with the housing and the heat-generating structure, the heat-generating structure including an integrated circuit.

15 . The method of claim 13 , wherein the housing has a smallest outside dimension of at least ten millimeters and not exceeding sixty millimeters.

16 . The method of claim 13 , wherein the frequency corresponds to a resonant frequency for the cooling element.

17 . The method of claim 13 , wherein the active cooling cell further includes a top plate having at least one inlet and an orifice plate having a plurality of orifices therein, the cooling element being between the top plate and the orifice plate, the vibrational motion of the cooling element driving the fluid through the plurality of orifices such that the fluid has a speed of at least thirty meters per second after exiting at least one of the plurality of orifices.

18 . The method of claim 13 , wherein the housing has at least one aperture therein, the aperture allowing a fluid flow through the housing.

19 . The method of claim 18 , wherein the doorbell system further includes a dust guard coupled with the at least one aperture.

20 . The method of claim 13 , further comprising:
driving the cooling element in response to at least one of a doorbell system camera being activated, a skin temperature of the housing reaching or exceeding a first threshold, the doorbell system being activated, or a heat-generating structure temperature reaching or exceeding a second threshold.

Assignees

• Frore Systems Inc

Inventors

• Sathyamurthy Prabhu
• Hasabnis Nilesh Sudhir
• Ganti Suryaprakash
• Madhavapeddy Seshagiri Rao

Classifications

• G06F1/20 Primary

  Cooling means · CPC title

• B81B2201/036

  Micropumps · CPC title

• H05K7/20154

  Heat dissipaters coupled to components · CPC title

• B81B2207/11

  Structural features, others than packages, for protecting a device against environmental influences · CPC title

• B81B2203/0118

  Cantilevers · CPC title