How They Work –  Our solid-state, cold plate assembly maintains a near isothermal profile using a uniform thermoelectric module circuit properly positioned between a milled flat, aluminum surface plate and heat sink.  The thermoelectric circuit precisely extracts heat from the plate which is also sufficiently thick to promote good lateral thermal conduction and maintain thermal uniformity.  With a feedback temperature controller (and an embedded sensor near the plate mid-line) precise temperatures can be controlled across a relatively wide temperature range (typically -10C to +80C).   Bi-directional temperature control is also possible since the thermoelectrics allow a reversible cooling/heating response.  This bi-directional capability is especially advantageous for cycling applications or where the desired set point oscillates near ambient.  Cold plate subassemblies are commonly used for contact cooling of hot surfaces or where a stable and precise temperature is required on a surface.  Some typical applications areas include life sciences and medical testing, electronic testing, thermal calibration equipment and others.

Design Details –  Our cold plate assembly (P/N AS130X80) ensures good and reliable performance through the use of  high quality thermoelectric modules, a high fin density, low resistance heat sink (for optimal heat removal), a high-flow/pressure DC fan with shroud to ensure near uniform air flow through the heat sink fin array.  Our type 6063 aluminum surface plate is milled smooth and flat and then is further dark anodized for protection.  A small diameter, deep blind hole is included along the plate side for convenient temperature sensor placement.  Our standard air-surface chiller is available in an 130mm x 80mm footprint, however, other cold plate sizes can be custom produced.  Our surface plate provides 90 watts of cooling (Qc) at Vin = 12 volts and at T-ambient = 25^oC (DT=0^oC).

Options –   Various surface plate configurations and sizes can be produced to meet your specific application needs.  Custom mounting patterns can be added to facilitate direct coupling of a cooled surface plate to your equipment.  Alternative surface coatings or no surface coating are product options.

FEATURE OVERVIEW:

• High Performance Components
• Low DC Voltage Operation
• Rugged and Reliable Construction

TYPICAL APPLICATIONS:

• Biological Studies Requiring Temperature Control
• Reaction Control/Conditioning
• Temperature Controlled Electronics Testing
• Direct Contact Cooling in Industrial Equipment
• Consumer Products Cooling/Heating

COMMON FEATURES FOR COLD PLATES

CONNECTIONS:   Mounted 6-Terminal Connector (Cable termination optional)

COMPONENTS:  80x38mm Ball Bearing Fan,  High Fin Density 6063 Al Heat Sink,  Milled Aluminum Surface Plate,  High Reliability Thermoelectric Modules,  Custom Sheet Metal Al Shroud,  Stainless Steel Fasteners

RELIABILITY:  Fans: 50K hours MTBF,  Fan Perf.: 79CFM, 0.55 in-H2O, 55 dBA,  TEC’s: >100,000 hours MTBF

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COLD PLATE SUBASSEMBLY           PRICING $204 (Qty1-10)
P/N   AS13080

DC INPUT
Vin = fixed 8-12 Volts (recommended)
(0-15V for variable control)
Iin = 11-13 amps (at 12V)

NOMINAL PERFORMANCE
Typ. Cooling Qc = 90 watts
(T ambient= 25°C, DT= 0)

ASSEMBLY DIMENSIONS
130mm (L) x 80mm (W) x 75mm (H)
Weight: 1.6 Kg (3.5 lbs.)

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ASSEMBLY DRAWING

130X80 Cold Plate         P/N   AS13080

Cold Plate Subassembly          P/N   AS13080

Air-surface chiller (cold plate) incorporates two TECs wired in parallel (1SX2P) .  Recommended operating voltage is 12 volts.  Qc = cooling capacity in cold side plate.  Ta = ambient temperature.  Tc = cold side plate temperature.  Th = hot side heat sink temperature.  COP = coefficient of performance (= Qc/Pin).

Links to other performance curves for this subassembly (P/N  AS13080):

COP v. Voltage Curve (click to link) >>

Qh v. Voltage Curve (click to link) >>

Current v. Voltage Curve (click to link) >>
Please note:  Cooling performance curves reflect net cooling capabilities of the coolers, exclusive of performance losses from heat gains through conduit or cabinet walls.  We recommend that all cooler based systems be designed carefully and well insulated to reduce performance degrading heat gains.