Multi-unit temperature control box structure

Abstract

The utility model discloses a multi-unit temperature control box body structure which comprises a refrigerating unit used for providing a cold source; each heat preservation box comprises an inner box body, an outer box body and a box door, and one side of each inner box body is open; a heat preservation and insulation layer is filled between the inner box body and the outer box body; a heating piece, a refrigerating piece and a temperature measuring piece are arranged in each inner box body, and the refrigerating piece in each inner box body is connected with a refrigerating unit; a box door is installed at the end, close to the opening side of the inner box body, of the outer box body in a turnover mode, and the inner box body can be closed or opened through the box door. The tool tray is arranged in the inner box body in a drawable manner, and a workpiece is placed on the tool tray; and the plurality of temperature measuring pieces, the plurality of heating pieces and the refrigerating unit are electrically connected with the control module. According to the utility model, multi-station temperature control can be realized, the production efficiency is greatly improved, meanwhile, workpieces with different gradients can be independently processed, and the heat insulation boxes are not interfered with one another and can be effectively coordinated and compatible with single-piece processing and batch processing.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature control boxes, in particular to a multi-unit temperature control box structure. Background Art

[0002] With the continuous development of industrial production, traditional high and low temperature testing equipment such as high and low temperature control boxes, walk-in incubators, etc. have some obvious limitations in the production process. These devices are usually designed as single units, and each device has an independent cooling and heating system. Therefore, when used in factory production lines, the following problems will occur:

[0003] 1. Low production efficiency: In the face of large-scale production needs, it is necessary to use multiple devices to meet testing and production requirements. However, since each device has independent temperature control and lacks effective coordination, the overall production efficiency is low. Large-volume product processing requires more time and resources, which affects the overall efficiency of the production line.

[0004] 2. Large floor space: In order to meet production needs, multiple devices need to be used in parallel, which leads to an increase in the required workshop space and increases the company's site costs.

[0005] 3. High operating cost: Each existing device needs to be equipped with a separate cooling and heating system. When running alone, the energy consumption is high and the power consumption is large, which increases the company's energy consumption and maintenance costs.

[0006] Therefore, the existing high and low temperature testing equipment cannot meet the large-scale needs of modern industrial production. Therefore, there is an urgent need for a multi-unit temperature control box structure. Utility Model Content

[0007] In view of the deficiencies existing in the prior art, the utility model provides a multi-unit temperature control box structure.

[0008] The utility model discloses a multi-unit temperature control box structure, comprising:

[0009] A refrigeration unit, wherein the refrigeration unit is used to provide a cold source;

[0010] A plurality of thermal insulation boxes, each comprising an inner box, an outer box and a door, one side of the inner box is open; a thermal insulation layer is filled between the inner box and the outer box; a heating element, a refrigeration element and a temperature measuring element are arranged in the inner box, and each refrigeration element in the inner box is connected to the refrigeration unit; the door is installed on one end of the outer box close to the opening side of the inner box in a flippable manner, and the door can close or open the inner box;

[0011] A tooling tray, the tooling tray is drawable and arranged in the inner box, and a workpiece is placed on the tooling tray;

[0012] A control module, the plurality of temperature measuring elements, the plurality of heating elements and the refrigeration unit are all electrically connected to the control module.

[0013] As a further improvement of the utility model, it also includes an incubator bracket, and a plurality of incubator brackets are arranged side by side;

[0014] The incubator bracket is provided with multiple layers of placement areas in the vertical direction, each of which is provided with an incubator, and multiple shock absorbers are provided between the bottom of the outer box body of the incubator and the bottom of the placement area; shock-absorbing pads are provided at the bottom supporting feet of the incubator bracket.

[0015] As a further improvement of the utility model, L-shaped tooling slideways are provided on both sides of the inner box along the pulling direction of the tooling tray;

[0016] A plurality of fixing columns are arranged between the bottom ends of the two L-shaped tooling slides along their length direction, the top ends of the plurality of fixing columns are integrally connected with the corresponding L-shaped tooling slides, and the bottom ends of the plurality of fixing columns respectively pass through the bottom plate of the inner box body and the bottom plate of the outer box body and are fixed to the bottom of the placement area; the tooling tray is pullable and slidable on the two L-shaped tooling slides.

[0017] As a further improvement of the present invention, the L-shaped tooling slideway and the fixing column are both made of nylon.

[0018] As a further improvement of the present invention, the inner walls of the top plate and the bottom plate of the inner box are respectively installed with refrigeration coils, and the upper and lower refrigeration coils constitute the refrigeration element;

[0019] The inlet ends of the upper and lower refrigeration coils pass through the outer box body and are connected to the outlet of the refrigeration unit. The outlet ends of the upper and lower refrigeration coils pass through the outer box body and are connected to the refrigeration unit's refrigeration port.

[0020] As a further improvement of the utility model, the outer walls of the top plate and the bottom plate of the inner box are respectively installed with electric heating wires, the upper and lower electric heating wires constitute the heating element, and the multiple electric heating wires are respectively electrically connected to the control module.

[0021] As a further improvement of the present invention, the bottom of the box door is connected to the bottom of the outer box body through a plurality of damping hinges, a locking buckle is provided on the upper outer side of the box door, a locking hook is provided on the top of the outer box body close to one end of the box door, the box door is flipably mounted on the outer box body through a plurality of damping hinges, and is fixed to the locking hook of the outer box body through the locking buckle; a handle is provided on the outer side of the box door.

[0022] As a further improvement of the utility model, two annular sealing strips are arranged on the inner side of the box door; among the two annular sealing strips, a heating belt is arranged under the annular sealing strip located on the outer side.

[0023] As a further improvement of the utility model, the thermal insulation layer is a polyurethane foam layer.

[0024] As a further improvement of the present invention, each of the incubators can heat up or cool down under different working conditions, and can also operate independently without interfering with each other.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The utility model provides a refrigeration unit in combination with a plurality of thermal insulation boxes. A heating element, a refrigeration element and a temperature measuring element are arranged in each thermal insulation box. In combination with a control module, multi-station temperature control can be achieved, which greatly improves production efficiency. At the same time, workpieces with different gradients can be processed separately. The thermal insulation boxes do not interfere with each other but can achieve effective coordination. Single-piece processing and batch processing are compatible, and a multi-process, multi-workpiece, and multi-temperature-variable working mode can be achieved.

[0027] The utility model enables multiple incubators to share a refrigeration unit and realize coordinated or independent operation through a control module. Compared with the traditional single-unit setting, the utility model greatly reduces the energy consumption during operation, reduces power consumption, and also reduces the energy consumption and maintenance costs of the enterprise.

[0028] The utility model can effectively prevent the internal cold from being lost to the external environment through the thermal insulation layer and two annular sealing strips, thereby improving the efficiency of converting electrical energy into refrigeration effect, that is, the electric power conversion rate is increased. Compared with existing similar products, the power consumption can be reduced by 45%. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the general assembly structure of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of a combination of an insulation box bracket and multiple boxes of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the combination of a heat preservation box bracket and multiple boxes at another angle of the multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0032] Figure 4 It is a side cross-sectional view of a combination of an insulation box bracket and multiple boxes of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0033] Figure 5 A schematic structural diagram of an incubator bracket of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0034] Figure 6 A schematic structural diagram of an insulated box having a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0035] Figure 7 It is a structural schematic diagram of an insulation box at another angle of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0036] Figure 8 A structural side sectional view of an incubator having a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0037] Fig. 9 A schematic diagram of the installation of a sealing plate of an insulation box of a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0038] Fig.10 This is a schematic diagram of a heat preservation box with a multi-unit temperature control box structure disclosed in an embodiment of the utility model after the sealing plate is removed;

[0039] Fig.11 A schematic diagram of a refrigeration coil of an insulation box with a multi-unit temperature control box structure disclosed in an embodiment of the utility model;

[0040] Fig.12 It is a schematic diagram of the assembly of tooling and tooling tray of an insulation box with a multi-unit temperature-controlled box structure disclosed in an embodiment of the utility model.

[0041] In the figure:

[0042] 1. Refrigeration unit; 1-1. Outlet; 1-2. Return port; 2. Insulation box; 2-1. Inner box body; 2-2. Outer box body; 2-3. Box door; 2-4. Junction box; 2-5. Operation indicator light; 2-6. Thermal insulation layer; 2-7. Refrigeration coil; 2-8. L-shaped tooling slide; 2-9. Fixed column; 2-10. Tooling tray; 2-11. Sealing plate; 2-12. Threading tube; 3. Insulation box bracket; 3-1. Vertical pole; 3-2. Horizontal pole; 3-3. Vertical pole; 3-4. Box door limit block; 3-5. Shock-absorbing pad; 4-1. Locking hook; 4-2. Locking buckle; 5. Damping hinge; 6. Workpiece; 7. Shock absorber. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0047] like Figure 1-4 As shown, a multi-unit temperature control box structure provided by the utility model includes a refrigeration unit 1, a plurality of insulation boxes 2, a tooling tray 2-10, and a control module, wherein the refrigeration unit 1 is used to provide a cold source; the insulation box 2 includes an inner box 2-1, an outer box 2-2 and a box door 2-3, one side of the inner box 2-1 is open; a heat insulation layer 2-6 is filled between the inner box 2-1 and the outer box 2-2; a heating element, a control system are arranged in the inner box 2-1 Refrigeration parts and temperature measuring parts, each refrigeration part in the inner box 2-1 is connected to the refrigeration unit 1; the outer box 2-2 is flipped at one end close to the opening side of the inner box 2-1 and is equipped with a door 2-3, which can close or open the inner box 2-1; the tooling tray 2-10 is drawable and arranged in the inner box 2-1, and the workpiece 6 is placed on the tooling tray 2-10; multiple temperature measuring parts, multiple heating parts and the refrigeration unit 1 are electrically connected to the control module.

[0048] In this embodiment, a refrigeration unit 1 is provided in conjunction with a plurality of insulated boxes 2, each of which is provided with a heating element, a refrigeration element and a temperature measuring element, and in conjunction with a control module, multi-station temperature control can be achieved, which greatly improves production efficiency, and also allows for separate processing of workpieces with different gradients, and each insulated box 2 does not interfere with each other but can effectively collaborate, is compatible with single-piece processing and batch processing, and can achieve a multi-process, multi-workpiece, and multi-temperature-variable working mode; by allowing multiple insulated boxes 2 to share a refrigeration unit 1 and achieve collaborative or separate operation through a control module, compared with a traditional single-unit setting, the energy consumption during operation is greatly reduced, power consumption is reduced, and also the energy consumption and maintenance costs of the enterprise are reduced.

[0049] Specific:

[0050] like Figure 5 As shown, in the above embodiment, preferably, an incubator bracket 3 is also included, and a plurality of incubator brackets 3 are arranged side by side to meet the placement requirements of more incubators 2.

[0051] In the above embodiment, preferably, the incubator bracket 3 includes a rectangular frame structure composed of four vertical poles 3-1, and the four vertical poles 3-1 are provided with multiple layers of horizontal rectangular frames from top to bottom to form a multiple layer placement area; each layer of horizontal rectangular frames includes a cross bar 3-2 located between the vertical poles 3-1 on the left and right sides and a longitudinal bar 3-3 located between the vertical poles 3-1 on the front and rear sides. A diagonal brace plate is provided below each layer of the cross bar 3-2 and the longitudinal bar 3-3 corresponding to the four vertical poles 3-1. In order to meet the placement requirements, in this embodiment, a cross bar 3-1 and a longitudinal bar 3-3 for fixing the bottom of each incubator 1 are provided in the middle position of each layer of horizontal rectangular frames.

[0052] In the above embodiment, preferably, a door limit block 3-4 is provided on one side of the insulated box bracket 3 close to the door 2-3 of the insulated box 2, and the door limit block 3-4 is cylindrical. The door limit block 3-4 is arranged on the side of the cross bar 3-3 on the front side of each layer of the placement area to limit the downward flipping angle of the door 2-3 when the door 2-3 is flipped down and opened. The door 2-3 in this embodiment can be flipped downward to a horizontal position under the limitation of the door limit block 3-1, so that the operator can manually pull out the tooling tray 2-10.

[0053] In the above embodiment, preferably, the bottom supporting feet of the four uprights 3 - 1 of the thermal insulation box bracket 3 are all provided with shock-absorbing pads 3 - 5 .

[0054] like Figure 6-7As shown, in the above embodiment, preferably, a junction box 2-4 is installed near the rear end of one side of the outer box body 2-2 of the insulated box 2, and an operation indicator light 2-5 is installed near the front end, and the operation indicator light 2-5 is used to display the working status of the corresponding insulated box 2.

[0055] In the above embodiment, preferably, in order to ensure that the thermal insulation box 2 is stably and firmly installed on the thermal insulation box bracket 3, in this embodiment, L-shaped connecting pieces are respectively provided on both sides of the front and rear ends of the outer box body 2-2 of the thermal insulation box 2, and the vertical section of the L-shaped connecting piece is fixedly connected to the side of the outer box body 2-2 by bolts, and the horizontal section of the L-shaped connecting piece is fixedly connected to the top surface 3-2 of the thermal insulation box bracket 3 by bolts.

[0056] like Figure 8-12 As shown, in the above embodiment, preferably, L-shaped tooling slides 2-8 are arranged on both sides of the inner box 2-1 along the pulling direction of the tooling tray 2-10, that is, the two L-shaped tooling slides 2-8 are perpendicular to the surface where the opening side of the inner box 2-1 is located. A plurality of fixed columns 2-9 are arranged between the bottom ends of the two L-shaped tooling slides 2-8 along their length direction, and the top ends of the plurality of fixed columns 2-9 are integrally connected with the corresponding L-shaped tooling slides 2-8. The bottom ends of the plurality of fixed columns 2-9 pass through the bottom plate of the inner box 2-1 and the bottom plate of the outer box 2-2 respectively and are fixed to the bottom of the placement area. In this embodiment, the bottom ends of the plurality of fixed columns 2-9 pass through the bottom plate of the inner box 2-1 and the bottom plate of the outer box 2-2 respectively and are fixed to the longitudinal rod 3-3 located in the middle of each layer of the placement area. The tooling tray 2-10 is slideably arranged on the two L-shaped tooling slides 2-8.

[0057] In the above embodiment, preferably, the materials of the L-shaped tooling slide 2-8 and the fixed column 2-9 are both nylon. The L-shaped tooling slide 2-8 made of nylon can effectively reduce the friction on its surface so that the tooling pallet 2-10 can slide better on the two L-shaped tooling slides 2-8.

[0058] like Figure 4 , Figure 8 and Fig.11 As shown, in the above embodiment, preferably, the inner walls of the top plate and the bottom plate of the inner box body 2-1 are respectively installed with refrigeration coils 2-7, and the upper and lower refrigeration coils 2-7 constitute refrigeration parts; the inlet ends of the upper and lower refrigeration coils 2-7 pass through the inner box body 2-1 and the outer box body 2-2 respectively and are connected with the outlet 1-1 of the refrigeration unit 1, and the outlet ends of the upper and lower refrigeration coils 2-7 pass through the inner box body 2-1 and the outer box body 2-2 respectively and are connected with the refrigeration port 1-2 of the refrigeration unit 1.

[0059] In the above embodiment, preferably, the outer walls of the top plate and the bottom plate of the inner box body 1 are respectively installed with electric heating wires, the upper and lower electric heating wires constitute a heating element, and the multiple electric heating wires are respectively electrically connected to the control module.

[0060] In the above embodiment, preferably, the inner box 1 is further provided with at least one temperature measuring sensor, and the at least one temperature measuring sensor constitutes a temperature measuring element. The temperature measuring sensor in this embodiment is electrically connected to the control module.

[0061] In the above embodiment, preferably, in each insulated box 2, the inner box body 2-1 and the outer box body 2-2 are provided with a threading hole on the same side, and a threading tube 2-12 (such as Fig. 9 , Fig.10 The threading tube 2-12 and the threading hole are sealed and connected by welding. The wires of the multiple electric heating wires and the multiple temperature sensors in the inner box 2-1 are led out from the threading tube 2-12 to be connected to the wiring terminals in the junction box 2-4.

[0062] In the above embodiment, preferably, in each thermal insulation box 2, a shock absorber 7 is further provided between the bottom of the outer box body 2-2 and the bottom longitudinal rod 3-3 of the placement area, and the shock absorber 7 can be arranged at intervals along the length direction of the short side of the outer box body 2-2.

[0063] In the above embodiment, preferably, the bottom of the door 2-3 is connected to the bottom of the outer box body 2-2 through a plurality of damping hinges 5, a locking buckle 4-2 is provided on the upper outer side of the door 2-3, and a locking hook 4-1 is provided at the top of the outer box body 2-2 near the door, and the door 2-3 is flipably mounted on the outer box body 2-2 through a plurality of damping hinges 5, and is fixed to the locking hook 4-1 of the outer box body 2-2 through the locking buckle 4-2. In this embodiment, in order to facilitate the operator to open or close the door 2-3, a handle is provided on the outer side of the door 2-3 in this embodiment.

[0064] In the above embodiment, preferably, a double sealing structure is adopted between the door 2-3 and the outer box body 2-1, that is, two annular sealing strips are arranged on the inner side of the door 2-3; and a heating belt is arranged under the annular sealing strip located on the outer side. The arrangement of the heating belt can effectively isolate the cold and prevent condensed water from condensing. In this embodiment, the heat insulation layer and the two annular sealing strips can effectively prevent the internal cold from being lost to the external environment, thereby improving the efficiency of converting electric energy into cooling effect, that is, the electric power conversion rate is increased, and compared with existing similar products, its power consumption can be reduced by 45%.

[0065] In the above embodiment, preferably, a perfusion fan is also installed on the side of the box door 2-3 facing the inner box body 2-1, which can stir the air inside the inner box body 2-1, and cooperate with the electric heating wire and refrigeration coil in the inner box body 2-1 to achieve uniform cooling or heating temperature.

[0066] In the above embodiment, preferably, the thermal insulation layer 2-6 is a polyurethane foam layer. In this embodiment, the inner box 2-1 can be suspended and installed inside the outer box 2-2 through a plurality of fixing columns 2-9 extending from the bottom of the inner box 2-1. In order to prevent the cold in the inner box 2-1 from being transmitted to the outside, in this embodiment, filling is performed between the inner box 2-1 and the outer box 2-2 to form a polyurethane foam layer.

[0067] In the above embodiment, preferably, the control module includes a PLC, which is integrated and installed in an electric control box on one side of the refrigeration unit 1. The refrigeration unit 1, the operation indicator lights 2-5 on one side of each insulation box 2, the multiple temperature sensors in each insulation box 2, the multiple electric heating wires and the refrigeration unit 1 are all electrically connected to the PLC. The PLC can control the refrigeration unit 1 and the electric heating wires in the corresponding insulation box 2 to cool or heat according to the temperature measurement data of the temperature sensor inside each insulation box 2, so as to meet the high and low temperature coordinated control requirements of multiple insulation boxes 2 and the independent temperature control requirements of each insulation box 2.

[0068] In the above embodiment, preferably, the control module also includes a touch screen, which is connected to the PLC for communication. The touch screen is provided with an operation screen, which includes a general screen and a sub-page of each incubator 2, so as to achieve accurate control of the temperature of each incubator 2 through the touch screen. In order to meet the debugging requirements, the touch screen in this embodiment is connected to the PLC by an extension line for communication to meet the hand-held requirements of the touch screen. In this embodiment, a temperature display screen, a temperature adjustment button, and a start / stop button can be set on each sub-page of the incubator 2.

[0069] like Fig. 9 As shown, in the above embodiment, preferably, one side of the inner box body 2-1 and the outer box body 2-2 are both open to facilitate the filling of the internal polyurethane foam layer during assembly. In this embodiment, in order to close the open end gap of the inner box body 2-1 and the outer box body 2-2 on the side close to the door 2-3, a sealing plate 2-11 is installed between the gap between the inner box body 2-1 and the outer box body 2-2 on the side close to the door 2-3 to achieve sealing of the space where the polyurethane foam layer is located.

[0070] In the above embodiment, preferably, multiple insulation boxes 2 are combined with a refrigeration unit 1 and the electric heating wire, refrigeration coil and temperature sensor inside each insulation box 2 to realize the multi-station temperature control function of the multiple insulation boxes 2, and can perform separate processing on workpieces with different gradients, and is compatible with the functions of single-piece processing and batch processing.

[0071] The use method of the utility model, which is used for the above-mentioned multi-unit temperature control box structure, includes:

[0072] The temperature range in each insulation box 2 and the holding time of each temperature section are independently set through the control module;

[0073] Place the workpiece 6 into one or more heat preservation boxes 2, and close the doors 2-3 of the one or more heat preservation boxes 2 in place;

[0074] Start the heating element or cooling element of each insulated box 2 to make the corresponding insulated box 2 reach a preset temperature;

[0075] The temperature measuring element in each incubator 2 monitors the temperature in the corresponding incubator 2 in real time and transmits the temperature data value to the control module;

[0076] The control module controls the temperature increase or decrease of a single or multiple insulation boxes 2 according to the working conditions and the temperature data value in each insulation box 2.

[0077] In the above embodiments, preferably, each insulation box 2 can heat up or cool down under different working conditions, and can also operate independently without interfering with each other. That is, in this embodiment, the working conditions of each insulation box 2 can be different, and each insulation box 2 can operate under different processes and working conditions to meet the needs of different workpieces 6 and different temperature changes.

[0078] In the above embodiment, preferably, each incubator 2 is equipped with an independent start / stop button and operation indicator lights 2-5 to ensure that each incubator 2 can be independently operated and independently started and stopped.

[0079] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-unit temperature control box structure, characterized in that: include: A refrigeration unit, wherein the refrigeration unit is used to provide a cold source; A plurality of heat preservation boxes, each of which comprises an inner box body, an outer box body and a box door, and one side of the inner box body is open; A heat-insulating layer is filled between the inner box and the outer box; a heating element, a refrigerating element and a temperature measuring element are arranged in the inner box, and each of the refrigerating elements in the inner box is connected to the refrigeration unit; the door is installed on one end of the outer box close to the opening side of the inner box in a flippable manner, and the door can close or open the inner box; A tooling tray, the tooling tray is drawable and arranged in the inner box, and a workpiece is placed on the tooling tray; A control module, the plurality of temperature measuring elements, the plurality of heating elements and the refrigeration unit are all electrically connected to the control module.

2. The multi-unit temperature control box structure according to claim 1, characterized in that: It also includes an incubator bracket, wherein a plurality of incubator brackets are arranged side by side; The incubator bracket is provided with multiple layers of placement areas in the vertical direction, each of which is provided with an incubator, and multiple shock absorbers are provided between the bottom of the outer box body of the incubator and the bottom of the placement area; shock-absorbing pads are provided at the bottom supporting feet of the incubator bracket.

3. The multi-unit temperature control box structure according to claim 2, characterized in that: L-shaped tooling slideways are arranged on both sides of the inner box along the pulling direction of the tooling tray; A plurality of fixing columns are arranged between the bottom ends of the two L-shaped tooling slides along their length direction, the top ends of the plurality of fixing columns are integrally connected with the corresponding L-shaped tooling slides, and the bottom ends of the plurality of fixing columns respectively pass through the bottom plate of the inner box body and the bottom plate of the outer box body and are fixed to the bottom of the placement area; the tooling tray is pullable and slidable on the two L-shaped tooling slides.

4. The multi-unit temperature control box structure according to claim 3, characterized in that: The L-shaped tooling slideway and the fixing column are both made of nylon.

5. The multi-unit temperature control box structure according to claim 1, characterized in that: The inner walls of the top plate and the bottom plate of the inner box are respectively installed with refrigeration coils, and the upper and lower refrigeration coils constitute the refrigeration element; The inlet ends of the upper and lower refrigeration coils pass through the outer box body and are connected to the outlet of the refrigeration unit. The outlet ends of the upper and lower refrigeration coils pass through the outer box body and are connected to the refrigeration unit's refrigeration port.

6. The multi-unit temperature control box structure according to claim 1, characterized in that: The outer walls of the top plate and the bottom plate of the inner box are respectively installed with electric heating wires, the upper and lower electric heating wires constitute the heating element, and the plurality of electric heating wires are respectively electrically connected to the control module.

7. The multi-unit temperature control box structure according to claim 1, characterized in that: The bottom of the box door is connected to the bottom of the outer box body through a plurality of damping hinges, a locking buckle is provided on the upper outer side of the box door, and a locking hook is provided on the top of the outer box body close to one end of the box door. The box door can be flipped on the outer box body through a plurality of damping hinges and is fixed to the locking hook of the outer box body through the locking buckle; a handle is provided on the outer side of the box door.

8. The multi-unit temperature control box structure according to claim 7, characterized in that: Two annular sealing strips are arranged on the inner side of the box door; among the two annular sealing strips, a heating belt is arranged under the annular sealing strip located on the outer side.

9. The multi-unit temperature control box structure according to claim 1, characterized in that: The thermal insulation layer is a polyurethane foam layer.

10. The multi-unit temperature control box structure according to claim 1, characterized in that: Each of the incubators can heat up or cool down under different working conditions, and can also operate independently without interfering with each other.

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