CN102706382B - Incubator - Google Patents

Abstract

The invention discloses a constant temperature box, which comprises a shell, an inner tank arranged in the outer shell and a control system. The inner tank surrounds a cavity, and also includes a heat balance and stabilization mechanism arranged in the cavity. The heat balance and stability mechanism includes a shell and a detection chamber, the housing is made of heat-conducting material, the detection chamber at least includes a first chamber and a second chamber isolated from each other, the first chamber is provided with a first through hole communicating with the cavity, and the second chamber is provided with a The second through hole communicating with the cavity. In the present invention, a thermal balance stabilizing mechanism made of a heat-conducting material is provided in the cavity surrounded by the inner tank. The thermal balance stabilizing mechanism includes a housing, a first chamber and a second chamber, and the reference sensor and the sensor to be calibrated are placed in the second chamber respectively. In the first chamber and the second chamber, thermal balance can be quickly established in the detection chamber, and the temperature difference between the first chamber and the second chamber can be less than 0.001°C; the invention has a simple structure, can realize high-precision temperature calibration, and has low cost.

Description

an incubator

technical field

The invention relates to a constant temperature box.

Background technique

In the manufacturing process of products such as sensors, due to the individual differences of products, it is usually required to be marked with consistency before leaving the factory. When marking, temperature stability is very important, so high-precision thermostat equipment is required. The existing common incubator has low precision, and the general internal temperature difference is ±0.5°C, while the high-precision incubator has complex structure and expensive price.

Contents of the invention

The technical problem to be solved by the present invention is to provide a constant temperature box with simple structure and low cost for the deficiencies of the prior art.

The technical problem to be solved in the present invention is solved through the following technical solutions:

A constant temperature box, comprising an outer shell, an inner liner arranged in the outer shell and a control system for temperature calibration of a sensor, the inner liner surrounds a cavity, and also includes an inner liner arranged in the cavity and connected to the inner liner A thermal balance stabilization mechanism isolated from a cell, the thermal balance stabilization mechanism includes a housing and a detection chamber arranged in the housing, the housing is made of a heat-conducting material, and the detection chamber includes at least a first chamber for placing a reference sensor chamber and a second chamber for placing the sensor to be calibrated, the first chamber is provided with a first through hole communicating with the cavity, and the second chamber is provided with a through hole communicating with the cavity second via.

The first chamber and the second chamber are isolated from each other.

The shell is a single shell.

The casing is a double casing, and the double casing includes a first casing and a second casing that are tightly fitted.

The first housing cover is arranged on the second housing.

The first housing is provided with a first groove, and the second housing is provided with a first groove matching groove, and the first groove and the first groove matching groove correspond to each other and form a first chamber chamber, the first casing is provided with a second groove, the second casing is provided with a second groove matching groove, and the position of the second groove and the second groove matching groove are corresponding and form the first Two chambers.

The detection chamber also includes a third chamber for storing the sensor to be calibrated, the third chamber is provided with a third through hole communicating with the cavity, and the third chamber is respectively connected to the first The chamber is isolated from the second chamber, the first housing is provided with a third groove, the second housing is provided with a third groove matching groove, and the third groove and the third The grooves correspond to the positions of the grooves and form the third chamber.

The first chamber is disposed between the second chamber and the third chamber.

The heat balance stabilizing mechanism is separated from the inner tank by a bracket, and the bracket is made of heat insulating material, and the shell is arranged in the cavity by the bracket.

The heat balance stabilizing mechanism is isolated from the inner container by a hanging rope, and the hanging rope is made of heat insulating material, and the housing is suspended in the cavity by the hanging rope.

Owing to adopting above technical scheme, the beneficial effect that makes the present invention possess is:

In a specific embodiment of the present invention, since a thermal balance stabilization mechanism made of thermally conductive material is provided in the cavity surrounded by the inner tank, the thermal balance stabilization mechanism includes a housing and a detection chamber composed of a first chamber and a second chamber. chamber, the reference sensor and the sensor to be calibrated are respectively placed in the first chamber and the second chamber which are isolated from each other, and thermal balance can be quickly established in the detection chamber, and the temperature difference between the first chamber and the second chamber can be less than 0.001°C; the present invention The structure is simple, high-precision temperature calibration can be realized, and the cost is low.

Description of drawings

Fig. 1 is the structural representation of the incubator in one embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a heat balance stabilization mechanism in an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a heat balance stabilization mechanism provided with a sensor in an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

As shown in Fig. 1 to Fig. 3, the incubator of the present invention, one embodiment thereof, comprises shell (not shown in figure), liner 11, control system (not shown in figure) and heat balance stabilizing mechanism, liner 11 is arranged on In the shell, the outer surface of the liner 11 is surrounded by heating wires and cooling tubes (not shown in the figure). The control system is used for temperature calibration of the sensor to be calibrated. And be isolated from liner 11. In one embodiment, the thermal balance stabilization mechanism includes a housing 24 and a detection chamber, the housing 24 is made of a heat-conducting material, such as metal, silicone sheet or heat-conducting plastic, and the detection chamber at least includes a first chamber 21 and a second chamber Chamber 22, the first chamber 21 is used to place the reference sensor 31, the second chamber 22 is used to place the sensor 32 to be calibrated, the first chamber 21 is provided with a first through hole 213, the first through hole 213 and the cavity 12 Communication, the first through hole 213 can be used to lead the reference sensor output wire 311 out of the first chamber 21 to connect with the control system, the second chamber 22 is provided with a second through hole 223, the second through hole 223 communicates with the cavity 12 The second through hole 223 can be used to lead the calibration sensor output wire 321 out of the second chamber 22 to connect with the control system. The sizes of the first chamber 21 and the second chamber 22 are matched with the sizes of the sensors placed therein respectively, and only need to be slightly larger than the sensors placed therein.

In one embodiment, the first chamber 21 and the second chamber 22 are isolated from each other.

In one embodiment, housing 24 is a monocoque. Housing 24 may consist of a single piece of thermally conductive material.

In one embodiment, the housing 24 is a double housing, specifically comprising a first housing 241 and a second housing 242, the first housing 241 and the second housing 242 are closely matched, and the first housing 241 and the second housing 241 The two casings 242 can be combined front and back, up and down, or in other ways. The first casing 241 can also be formed by combining multiple casings, and the second casing 242 can also be composed of multiple casings.

In one embodiment, the first housing 241 is covered on the second housing 242. In this embodiment, the first housing 241 and the second housing 242 are combined up and down. The first housing 241 The contact surface with the second housing 242 can be provided with a clamping mechanism, so that the first housing 241 and the second housing 242 are closely combined without leaving any gaps.

In one embodiment, the first housing 241 is provided with a first groove 211, the second housing 242 is provided with a first groove matching groove 212, and the positions of the first groove 211 and the first groove matching groove 212 correspond to each other. , together form the first chamber 21, the first housing 241 is provided with a second groove 221, the second housing 242 is provided with a second groove matching groove 222, and the second groove 221 and the second groove are matched The positions of the grooves 222 correspond to each other, and together they form the second chamber 22 .

In one embodiment, the detection chamber further includes a third chamber 23, the third chamber 23 is also used to place the sensor 32 to be calibrated, the third chamber 23 is provided with a third through hole 233, the third through hole 233 and The cavity 12 is connected, and the third chamber 23 is respectively isolated from the first chamber 21 and the second chamber 22, so that the three chambers are independently arranged in the housing 24, and the first housing 241 is provided with a third groove 231 , the second housing 242 is provided with a third groove matching groove 232 , the third groove 231 and the third groove matching groove 232 are located in corresponding positions, and they are combined to form the third chamber 23 . The detection chamber may also include a third, fourth, and fifth chamber, and the number of chambers may be determined according to needs, so that multiple sensors 32 to be calibrated can be calibrated at the same time.

In one embodiment, the first chamber 21 is disposed between the second chamber 22 and the third chamber 23 . The first chamber 21 is arranged between the second chamber 22 and the third chamber 23. Even if the reference sensor 31 is placed in the middle chamber, the sensor to be marked can be minimized to be affected by the change of temperature difference, so that the marked sensor more precise.

In one embodiment, the thermal balance stabilization mechanism is isolated from the inner tank 11 by a bracket 25, the bracket 25 is made of heat insulating material, the housing 24 can be arranged in the cavity 12 by the bracket 25, so that the thermal balance stabilization mechanism is placed in the cavity 12 the middle part.

In one embodiment, the heat balance stabilization mechanism is separated from the inner tank 11 by a hanging rope (not shown in the figure), the hanging rope is made of heat insulating material, and the housing 24 can be suspended in the cavity 12 by the hanging rope.

The above content is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. Those of ordinary skill in the technical field to which the present invention belongs can also make some simple deduction or replacement without departing from the concept of the present invention.

Claims (10)

1. a constant temperature oven, comprise shell, inner bag is in the housing set and sensor is carried out to the control system of temperature calibration, described inner bag crosses cavity, it is characterized in that, also comprise and being arranged in described cavity and the thermal equilibrium stabilizing mechanism of isolating with described inner bag, described thermal equilibrium stabilizing mechanism comprises housing and is arranged on the sensing chamber in described housing, described housing is made up of Heat Conduction Material, described sensing chamber at least comprises the first chamber for placing reference sensor and the second chamber for placing sensor to be calibrated, described first chamber is provided with the first through hole with described cavity connects, described second chamber is provided with the second through hole with described cavity connects.

2. constant temperature oven as claimed in claim 1, is characterized in that, described first chamber and described second chamber mutually isolated.

3. constant temperature oven as claimed in claim 1, it is characterized in that, described housing is mono-hull.

4. constant temperature oven as claimed in claim 1, it is characterized in that, described housing is Double-casing, and described Double-casing comprises close-fitting first housing and the second housing.

5. constant temperature oven as claimed in claim 4, it is characterized in that, described first case lid is located on described second housing.

6. constant temperature oven as claimed in claim 5, it is characterized in that, described first housing is provided with the first groove, described second housing is provided with the first groove fit groove, described first groove and described first groove fit slot are put correspondence and form the first chamber, described first housing is provided with the second groove, and described second housing is provided with the second groove fit groove, and described second groove and described second groove fit slot are put correspondence and form the second chamber.

7. constant temperature oven as claimed in claim 6, it is characterized in that, described sensing chamber also comprises the 3rd chamber for depositing sensor to be calibrated, described 3rd chamber is provided with the third through-hole with described cavity connects, described 3rd chamber respectively with described first chamber and described second chamber isolation, described first housing is provided with the 3rd groove, and described second housing is provided with the 3rd groove fit groove, and described 3rd groove and described 3rd groove fit slot are put correspondence and form the 3rd chamber.

8. constant temperature oven as claimed in claim 7, it is characterized in that, described first chamber is arranged between described second chamber and described 3rd chamber.

9. the constant temperature oven according to any one of claim 1 to 8, is characterized in that, described thermal equilibrium stabilizing mechanism and described inner bag are isolated by support, and described support is made up of thermal insulation material, and described housing passes through described Bracket setting in described cavity.

10. the constant temperature oven according to any one of claim 1 to 8, is characterized in that, described thermal equilibrium stabilizing mechanism and described inner bag are isolated by lanyard, and described lanyard is made up of thermal insulation material, and described housing is suspended in described cavity by described lanyard.