Gas detector with thermal dissipation
A gas detector is provided. The gas detector has a housing defining a cavity and a display module is disposed within the cavity. The display module has a first PCB, a base plate, a metal enclosure, and a thermal gap pad. The metal enclosure is positioned on top of the base plate, and the thermal gap pad is disposed in between the metal enclosure and the second PCB. The second PCB is disposed on top of the thermal gap pad.
1 . A gas detector comprising:
a housing defining a cavity, the housing comprising a top part and a bottom part, the top part coupled to the bottom part; and
a display module positioned within the cavity of the housing, the display module comprising:
a first PCB and a second PCB, each generating heat in response to operation of the display module;
a base plate;
a metal enclosure; and
a thermal gap pad, wherein the metal enclosure is positioned on top of the base plate, and the thermal gap pad is disposed in between the metal enclosure and the second PCB, wherein the second PCB is positioned in between the first PCB and the thermal gap pad,
wherein the display module is received by a display module support disposed on the bottom part of the housing, the display module support comprising a contact metal plate and support portions,
wherein the metal enclosure is in contact with the contact metal plate and the support portions, wherein the contact allows direct transfer of heat from the metal enclosure to the support portions and the contact metal plate.
2 . The gas detector of claim 1 , wherein the display module further comprises an LCD display, and the LCD display is positioned on top of the first PCB.
3 . The gas detector of claim 1 , wherein an outer surface of the top part has a threaded part, and an inner portion of the bottom part has a threaded surface.
4 . The gas detector of claim 1 , wherein the bottom part has the display module support to receive the display module, wherein the display module support is in contact with the base plate of the display module.
5 . The gas detector of claim 3 , wherein the display module support has the contact metal plate in contact with the base plate of the display module.
6 . The gas detector of claim 1 , wherein a diameter of the metal enclosure is in the range of 103 millimeter to 108 mm.
7 . A display module comprising:
a first PCB and a second PCB, each generating heat in response to operation of the display module;
a base plate;
a metal enclosure; and
a thermal gap pad, wherein the metal enclosure is positioned on top of the base plate, and the thermal gap pad is disposed in between the metal enclosure and the second PCB, wherein the second PCB is positioned in between the first PCB and the thermal gap pad
wherein the first PCB, the second PCB, and the base plate are received on a display module support, the display module support comprising a contact metal plate and support portions,
wherein the metal enclosure is in contact with the contact metal plate and the support portions, wherein the contact allows direct transfer of heat from the metal enclosure to the support portions and the contact metal plate.
8 . The display module of claim 7 , wherein the display module further comprises an LCD display, wherein the LCD display is positioned on top of the first PCB.
9 . The display module of claim 7 , wherein a diameter of the metal enclosure is in the range of 103 millimeter (mm) to 108 mm.
10 . The display module of claim 7 , wherein a length of the thermal gap pad is in the range of 60 millimeter (mm) to 80 mm.
11 . The display module of claim 8 , further comprising a third PCB, disposed in proximity to a bottom surface of the LCD display.
12 . The display module of claim 7 , wherein the thermal gap pad is made of silicone and ceramic powder.
13 . A gas detector comprising:
a housing defining a cavity; and
a display module positioned within the cavity of the housing, the display module comprising:
a first PCB and a second PCB, each generating heat in response to operation of the display module;
a base plate;
a metal enclosure; and
a thermal gap pad, wherein the metal enclosure is positioned on top of the base plate, and the thermal gap pad is disposed in between the metal enclosure and the second PCB, wherein the second PCB is disposed on top of the thermal gap pad, wherein the display module is received by a display module support disposed on a bottom part of the housing, the display module support comprising a contact metal plate and support portions,
wherein the metal enclosure is in contact with the contact metal plate and the support portions, wherein the contact allows direct transfer of heat from the metal enclosure to the support portions and the contact metal plate.
14 . The gas detector of claim 13 , wherein the first PCB is disposed on top of the second PCB, and a bottom surface of the first PCB abuts a top surface of the second PCB.
15 . The gas detector of claim 13 , wherein the display module further comprises an LCD display, and the LCD display is positioned on top of the first PCB.
16 . The gas detector of claim 13 , the housing having a top part and a bottom part, wherein an outer surface of the top part has a threaded part, and an inner portion of the bottom part has a threaded surface.
17 . The gas detector of claim 16 , wherein the bottom part has the display module support to receive the display module, wherein the display module support abuts the base plate of the display module.
18 . The gas detector of claim 13 , wherein the display module support has the contact metal plate in contact with the base plate of the display module.
19 . The gas detector of claim 13 , wherein a diameter of the metal enclosure is in the range of 103 millimeter to 108 mm.
20 . The gas detector of claim 15 , further comprising a third PCB, disposed in proximity to a bottom surface of the LCD display.