A water-cooled constant-temperature tank

Abstract

The application relates to the technical field of constant-temperature tanks, in particular to a water-cooled constant-temperature tank which comprises a base box, the upper surface of the base box is provided with a heat-preservation front body and a heat-preservation rear body, opposite positions of the heat-preservation front body and the heat-preservation rear body are formed with containing cavities, the containing cavities are used for vertically placing source bottles, the bottom of each source bottle is provided with a heat transfer platform, the heat transfer platform is fixed to the upper surface of the base box, an installation table is integrally arranged on the lower surface of the heat transfer platform, the installation table is located in the interior of the base box, a water-cooled radiator is arranged below the installation table, a refrigeration sheet is clamped between the upper surface of the water-cooled radiator and the lower surface of the installation table, one side of the refrigeration sheet which generates heat is attached to the water-cooled radiator, the water-cooled radiator is connected with an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe are communicated through the water-cooled radiator, and the water-cooled radiator is filled with cooling medium through the inlet pipe. The application has the effect that the heat generated by the refrigeration sheet can be accurately controlled to diffuse.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of constant-temperature tanks, and in particular to a water-cooled constant-temperature tank. BACKGROUND

[0002] A constant-temperature tank is a device for maintaining the temperature of production or experiments, and is widely used in the fields of solar cells, bioengineering, medicine, food, chemical industry, semiconductor manufacturing, etc. In the process of doping phosphorus elements in semiconductor manufacturing, the temperature of the source bottle needs to be controlled due to high precision requirements. The source bottle is made of transparent quartz material and contains liquid substances containing phosphorus elements. When the temperature in the source bottle is relatively stable, the doping of the semiconductor is more uniform, thereby improving the yield of subsequent production.

[0003] A source bottle constant-temperature tank is disclosed in the related art, which includes a constant-temperature tank main body, a control unit, and a temperature adjusting assembly. The constant-temperature tank main body is provided with a heat preservation box, a control box body, and a heat dissipation box body. The heat preservation box is used for placing a heat preservation source bottle. The control unit is installed in the control box body and is connected with the temperature adjusting assembly. The temperature adjusting assembly includes a temperature sensor and a refrigeration piece. The refrigeration piece includes a refrigeration sheet, a refrigeration cotton, and an evaporation fin. The refrigeration sheet is arranged at a position where the heat preservation box is in communication with the heat dissipation box body. The refrigeration cotton is arranged on the refrigeration sheet and is used for preventing the cold air generated by the refrigeration sheet from diffusing to the outside. The evaporation fin is in communication with the refrigeration sheet and is used for uniformly transmitting the temperature of the refrigeration sheet to the heat preservation box. The heat generated by the refrigeration sheet during the refrigeration process is transmitted through the heat dissipation fins connected with the refrigeration sheet, and then the heat dissipation fan blows away the heat of the heat dissipation fins.

[0004] In the process of blowing away the heat generated by the refrigeration sheet through the heat dissipation fan, the efficiency of heat dissipation cannot be accurately controlled. SUMMARY

[0005] In order to accurately diffuse the heat generated by the refrigeration sheet, the present application provides a water-cooled constant-temperature tank.

[0006] The present application provides a water-cooled constant-temperature tank, which adopts the following technical scheme:

[0007] The utility model provides a water -cooling constant temperature tank, including base box, the upper surface of base box is installed with heat preservation precursor and heat preservation rear body, and the opposite position of heat preservation precursor and heat preservation rear body forms and holds the cavity, the cavity is used for placing source bottle vertically in, and the bottom of source bottle is provided with heat transfer platform, heat transfer platform is fixed on the upper surface of base box, and the lower surface of heat transfer platform is integrally provided with mounting table, and mounting table is in the inside of base box, and water -coolated radiator is provided with below mounting table, and the upper surface of water -cooled radiator is clamped with the lower surface of mounting table with refrigeration sheet, and the side of refrigeration sheet that generates heat is pasted with water -cooled radiator, and the water inlet pipe and water outlet pipe are connected on the water -cooled radiator, and the water inlet pipe and water outlet pipe are communicated through water -cooled radiator, and the cooling medium is passed to the water -cooled radiator through the water inlet pipe.

[0008] Through the above technical scheme, when in use, the heat preservation precursor and heat preservation rear body installed on the upper surface of the base box form a containing cavity opposite to each other for placing the source bottle, so that the source bottle can be kept warm, then the heat transfer platform is arranged at the bottom of the source bottle, the heat of the source bottle is transferred through the heat transfer platform, the refrigeration sheet cools the source bottle, the other side of the refrigeration sheet is connected with the water-cooled radiator, the water-cooled radiator cools the refrigeration sheet, and the flow rate of the cooling medium in the water-cooled radiator is accurately controlled.

[0009] Preferably, one side of the base box is provided with an electrical box, the electrical box is provided with a control module, the base box is further provided with a side box body, the side box body is provided with an optical fiber sensor, the optical fiber sensor is provided with two, the optical fiber sensor is connected with the control module, and the detection ends of the two optical fiber sensors are connected to the water inlet pipe and the water outlet pipe.

[0010] Through the above technical scheme, the control module is arranged in the electrical box, the optical fiber sensor is fixed in the side box body, the optical fiber sensor is connected with the water inlet pipe and the water outlet pipe, the temperature of the water inlet pipe and the water outlet pipe is accurately measured by the optical fiber sensor, and then the control module is processed to accurately measure the heat dissipation efficiency of the water-cooled radiator.

[0011] Preferably, a control panel and an alarm lamp are mounted on one side of the electrical box, the control panel and the alarm lamp are connected with the control module, a temperature sensor for measuring the temperature of the source bottle is mounted on the inner layer of the heat preservation rear body, and the temperature sensor is connected with the control module.

[0012] Through the above technical scheme, the temperature sensor is used for measuring the temperature of the source bottle, so that the temperature of the source bottle can be accurately controlled, and when the temperature of the source bottle is higher than the set value, the alarm lamp alarms under the action of the control module.

[0013] Preferably, the installation table is spaced apart by two, and a placing groove is formed between the two installation tables, a heating sheet is arranged in the placing groove, and a pressing sheet is arranged below the heating sheet and used for abutting against the heating sheet.

[0014] By adopting the technical scheme, the placing groove is formed between the two installation tables, the heating sheet is arranged in the placing groove, and the heating sheet can heat the installation table and the heat transfer platform when the heat transfer platform needs to be heated, so that the temperature rise and drop of the source bottle can be accurately controlled.

[0015] Preferably, two layers of heat insulation pads are arranged below the heat transfer platform, the heat insulation pads are provided with a clearance hole, and the installation table corresponds to the position of the clearance hole.

[0016] By adopting the technical scheme, the heat insulation pads are arranged below the heat transfer platform, and the clearance hole arranged on the heat insulation pad is used for exposing the installation table, so that the heat insulation pad can isolate the heat transfer between the heat transfer platform and the base box, and the influencing factors of the temperature of the heat transfer platform are reduced.

[0017] Preferably, the heat preservation rear body is fixedly connected with the base box, the heat preservation front body moves to open the containing cavity relative to the heat preservation rear body, the opposite surfaces of the heat preservation front body and the heat preservation rear body are fixedly provided with magnets, and the lower part of the heat preservation front body is connected with the base box.

[0018] By adopting the technical scheme, the heat preservation rear body is fixedly connected with the base box, and the magnets are arranged between the heat preservation front body and the heat preservation rear body, so that the magnets can attract each other, thereby making it convenient to close the heat preservation front body and the heat preservation rear body.

[0019] Preferably, a rotating shaft is arranged in the base box, the rotating shaft is horizontally arranged, a connecting lug is fixedly arranged on the lower surface of the heat preservation front body, the connecting lug penetrates into the base box and is fixedly connected with the rotating shaft in a coaxial manner, and a power assisting device is connected to one end of the rotating shaft.

[0020] By adopting the technical scheme, the rotating shaft is arranged in the base box, the connecting lug fixedly arranged on the lower surface of the heat preservation front body is fixedly connected with the rotating shaft, and the power assisting device is connected to one end of the rotating shaft, so that the power assisting device can reduce the difficulty of operation when the heat preservation front body is opened in a rotating manner, and the moving position of the heat preservation front body can be conveniently controlled.

[0021] Preferably, the power assisting device comprises a rotating frame, a first elastic member and a second elastic member, the rotating frame is fixedly arranged on the rotating shaft in a coaxial manner, two swing arms are mounted on the rotating frame, one end of the first elastic member and one end of the second elastic member are respectively connected to the two swing arms, the other end of the first elastic member and the other end of the second elastic member are mounted on the base box, and the first elastic member and the second elastic member are in a contracted or natural state when the center of gravity of the heat preservation front body is directly above the rotating shaft.

[0022] By adopting the technical scheme, the torque generated by the first elastic member and the second elastic member on the rotating shaft in the contracted or natural state is zero, and then when the heat preservation precursor passes the position where the center of gravity is directly above the rotating shaft, the torque of the gravity of the heat preservation precursor on the rotating shaft is resisted by the first elastic member and the second elastic member, so that the heat preservation precursor is conveniently stopped at the movement end point, and at the same time, power is provided for the opening or closing of the heat preservation precursor during reverse movement.

[0023] Preferably, a slide rail is fixedly arranged on the base box, a mounting block is slidably connected to the slide rail, a latch is slidably connected to the mounting block, the sliding direction of the latch relative to the mounting block is perpendicular to the sliding direction of the mounting block relative to the slide rail, and the first elastic member and the second elastic member are fixed to the mounting block at an end away from the rotating frame. The length direction of the slide rail is provided with a clamping groove for inserting the latch.

[0024] By adopting the technical scheme, the mounting block is slidably connected to the slide rail, so that the position of the mounting block on the slide rail can be adjusted, thereby adjusting the tension of the first elastic member and the second elastic member connected to the mounting block, and after the mounting block is adjusted, the latch is connected to the clamping groove for fixation.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The heat of the source bottle is transferred through the heat transfer platform, the cooling fins cool the source bottle, the other side of the cooling fins is connected with the water-cooled radiator, the water-cooled radiator cools the cooling fins, and the flow rate of the cooling medium in the water-cooled radiator accurately controls the heat dissipation efficiency of the cooling fins;

[0027] 2. The optical fiber sensor is connected with the water inlet pipe and the water outlet pipe, so that the optical fiber sensor accurately measures the temperature of the water inlet pipe and the water outlet pipe, and then the control module processes to accurately measure the heat dissipation efficiency of the water-cooled radiator;

[0028] 3. The connecting lug fixed to the lower surface of the heat preservation precursor is fixedly connected with the rotating shaft, and one end of the rotating shaft is connected with the power assisting device. When the heat preservation precursor is opened by rotating, the power assisting device can reduce the difficulty of operation. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0030] Figure 2 is a schematic diagram of the placement position of the source bottle in the embodiment of the present application;

[0031] Figure 3 is an exploded view of the heat transfer platform connection structure in the embodiment of the present application;

[0032] Figure 4 is a schematic diagram of the position of the heating sheet in the embodiment of the present application;

[0033] Figure 5 is a schematic diagram of the position of the temperature sensor in the embodiment of the present application;

[0034] Figure 6 is a schematic diagram of the position of the optical fiber sensor in the embodiment of the present application;

[0035] Figure 7 is a schematic diagram of the structure of the heat preservation precursor in the embodiment of the present application;

[0036] Figure 8 is a schematic diagram of the position of the power assisting device in the embodiment of the present application;

[0037] Figure 9 is an enlarged view of part A in Figure 8

[0038] Legend: 1, base box; 11, rotating shaft; 2, electric appliance box; 21, alarm lamp; 22, control panel; 23, control module; 31, heat preservation precursor; 311, handle; 312, connecting lug; 32, heat preservation posterior body; 321, temperature sensor; 322, liquid level sensor; 33, containing cavity; 34, magnet; 4, source bottle; 5, side box body; 51, optical fiber sensor; 52, alarm; 6, heat transfer platform; 61, mounting table; 62, placing groove; 63, heating sheet; 64, sheet pressing; 65, heat insulation pad; 651, let go of hole; 7, refrigeration sheet; 8, water-cooled radiator; 81, water inlet pipe; 82, water outlet pipe; 83, temperature measuring connector; 84, radiator pressing plate; 9, power assisting device; 91, rotating frame; 92, first elastic member; 93, second elastic member; 94, swing arm; 95, slide rail; 96, mounting block; 97, bolt; 98, clamping groove. DETAILED DESCRIPTION

[0039] The following will be described in detail in combination with the accompanying drawings. Figures 1-9 The present application will be further described in detail.

[0040] The embodiment of the present application discloses a water-cooled constant temperature tank, referring to Figure 1 and Figure 2 ​, including the base box 1 and the electrical box 2, the electrical box 2 is located on one side of the base box 1, the upper part of the base box 1 is provided with a heat preservation front body 31 and a heat preservation rear body 32, the heat preservation front body 31 and the heat preservation rear body 32 are oppositely arranged, a containing cavity 33 is formed on the opposite surfaces of the heat preservation front body 31 and the heat preservation rear body 32, the containing cavity 33 is used for vertically placing the source bottle 4, the heat preservation front body 31 and the heat preservation rear body 32 are used for wrapping the source bottle 4, so as to reduce the heat transfer of the source bottle 4 with the outside, the heat preservation rear body 32 is provided with a side box body 5 on the side away from the heat preservation front body 31, the side box body 5 is fixed on the upper surface of the base box 1 body, and the heat preservation rear body 32 is fixed on the side box body 5, so that the base box 1, the electrical box 2, the side box body 5 and the heat preservation rear body 32 are fixed with each other, and the upper surfaces of the heat preservation front body 31 and the heat preservation rear body 32 are used for exposing the gas inlet and the gas outlet of the source bottle 4. The alarm lamp 21 and the control panel 22 are fixed on one side of the electrical box 2, the control panel 22 adopts a display screen with touch function, and can display temperature. The heat preservation front body 31 is formed with a handle 311, the handle 311 is used for the staff to move the heat preservation front body 31 relative to the heat preservation rear body 32, so as to open the containing cavity 33 formed by the heat preservation front body 31 and the heat preservation rear body 32, so as to take out the source bottle 4 in the cavity for replacement. The heat transfer platform 6 is arranged on the upper surface of the base box 1, the upper surface of the heat transfer platform 6 is horizontally arranged and circular, the bottom of the source bottle 4 is placed on the upper surface of the heat transfer platform 6, and the heat transfer platform 6 is used for heating or cooling the source bottle 4, so as to adjust the temperature in the source bottle 4.

[0041] Reference Figure 3 and Figure 4The heat transfer platform 6 is made of a metal material with good heat conductivity. The heat transfer platform 6 can be made of aluminum. The heat transfer platform 6 is fixed on the upper surface of the base box 1, and the lower surface of the heat transfer platform 6 is integrally provided with two mounting tables 61. The two mounting tables 61 are located inside the base box 1, and a placing groove 62 is formed between the two mounting tables 61. The placing groove 62 is used to set a heating sheet 63. The heating sheet 63 is heated by an electric heating method. The heating sheet 63 is provided below the pressing sheet 64. The heating sheet 63 is arranged against the heat transfer platform 6 through the pressing sheet 64, so that the heating sheet 63 heats the heat transfer platform 6. Two heat insulation pads 65 are arranged below the heat transfer platform 6. The heat insulation pads 65 are made of a material with small thermal conductivity, which can be made of polypropylene material. The two heat insulation pads 65 are used to pad the lower surface of the heat transfer platform 6. Meanwhile, a clearance hole 651 is also provided on the heat insulation pad 65. The position of the clearance hole 651 corresponds to the position of the mounting table 61. The lower surface of the mounting table 61 is exposed from the heat insulation pad 65. A refrigeration sheet 7 is attached to the lower surface of the mounting table 61. The refrigeration sheet 7 is a semiconductor sheet. One side of the refrigeration sheet 7 is a low-temperature side, and the other side is a high-temperature side. The low-temperature side is used to attach to the lower surface of the mounting table 61. The high-temperature side is away from the mounting table 61. A water-cooled radiator 8 is arranged below the heat insulation pad 65. The water-cooled radiator 8 is connected with an inlet pipe 81 and an outlet pipe 82. The inlet pipe 81 and the outlet pipe 82 are both installed on a temperature measuring joint 83. The inlet pipe 81 and the outlet pipe 82 are communicated through the water-cooled radiator 8. The upper surface of the water-cooled radiator 8 is tightly attached to the surface of the high-temperature side of the refrigeration sheet 7. A radiator pressing plate 84 is arranged below the water-cooled radiator 8. The edges of the radiator pressing plate 84 are fixed on the inner side surface of the base box 1 through bolts. The radiator pressing plate 84 abuts the water-cooled radiator 8 on the refrigeration sheet 7, so that the water-cooled radiator 8 can diffuse the heat of the refrigeration sheet 7. The cooling medium flowing into the water-cooled radiator 8 through the inlet pipe 81 and the outlet pipe 82 can cool the water-cooled radiator 8, thereby improving the temperature control of the refrigeration sheet 7.

[0042] Reference Figure 5In the electric appliance box 2, a control module 23 is arranged, which can be an industrial computer. The control module 23 is connected with the control panel 22 and the alarm lamp 21, and the temperature can be set through the control panel 22. A temperature sensor 321 is fixedly arranged on the side wall of the heat preservation body 32, which can be a thermocouple. The temperature sensor 321 is attached to the inner layer of the heat preservation body 32, which is in contact with the source bottle 4. The temperature of the heat preservation body 32 is detected by the temperature sensor 321, and the detected signal is processed by the control module 23 and displayed by the control panel 22. A liquid level sensor 322 is arranged on the inner layer of the heat preservation body 32 near the bottom of the source bottle 4, which can be a photoelectric sensor. The liquid in the source bottle 4 is detected by the photoelectric sensor, and the detected signal is processed by the control module 23 and displayed by the control panel 22. When the detected value of the temperature sensor 321 exceeds the predetermined set value or the detected value of the liquid level sensor 322 is lower than the predetermined set value, the alarm lamp 21 is controlled by the control module 23 to emit a light alarm signal.

[0043] Reference Figure 6 In the side box 5, two optical fiber sensors 51 are arranged. The detection ends of the optical fiber sensors 51 are inserted into the base box 1 through optical fiber cables and fixedly connected to the temperature measuring connectors 83. The detection ends of the two optical fiber sensors 51 are connected to the temperature measuring connectors 83 of the water inlet pipe 81 and the water outlet pipe 82 respectively, so that the two optical fiber sensors 51 measure the temperatures of the outlet water and the inlet water respectively. The optical fiber sensors 51 are connected to the control module 23, and the signals detected by the optical fiber sensors 51 are processed by the control module 23, so that the heat dissipation efficiency of the water-cooled radiator 8 to the refrigeration fin 7 can be accurately obtained, and the flow of the heat dissipation medium flowing through the water-cooled radiator 8 can be adjusted to control the efficiency of the water-cooled radiator 8. An alarm 52 is arranged in the side box 5, which can be a buzzer. The alarm 52 is in communication with the control module 23, and when the alarm lamp 21 emits a light alarm signal, the alarm 52 also emits an audible alarm signal.

[0044] Reference Figure 7 and Figure 8The opposite surface of the post-heat preservation body 32 and the pre-heat preservation body 31 is fixedly provided with a magnet 34, the surface of the magnet 34 is flush with the opposite surface of the post-heat preservation body 32 or the pre-heat preservation body 31, when the pre-heat preservation body 31 and the post-heat preservation body 32 are oppositely attached, the pre-heat preservation body 31 and the post-heat preservation body 32 are attracted by the magnet 34. A rotating shaft 11 is further arranged in the base box 1, the rotating shaft 11 is horizontally arranged, one end of the rotating shaft 11 penetrates into the electric appliance box 2 from the side wall of the electric appliance box 2, and a force assisting device 9 is arranged in the electric appliance box 2, the force assisting device 9 is used for generating resistance to the rotating shaft 11, the lower part of the pre-heat preservation body 31 is provided with a connecting lug 312, the connecting lug 312 penetrates into the base box 1 downward from the upper surface of the base box 1 and is fixedly connected with the rotating shaft 11, the pre-heat preservation body 31 is controlled by the force assisting device 9, so as to reduce the difficulty of the operator in opening or closing the pre-heat preservation body 31.

[0045] Reference Figure 9 The force assisting device 9 comprises a rotating frame 91, a first elastic member 92 and a second elastic member 93, one end of the first elastic member 92 and the second elastic member 93 is connected with the rotating frame 91, the other end of the first elastic member 92 and the second elastic member 93 away from the rotating frame 91 is connected in the electric appliance box 2, the rotating frame 91 is coaxially fixed on the rotating shaft 11, and two swing arms 94 are arranged on the rotating frame 91, one end of the two swing arms 94 away from the rotating shaft 11 is used for fixing the first elastic member 92 or the second elastic member 93, the pulling force of the first elastic member 92 and the second elastic member 93 to the swing arm 94 is used for forming the torque to the rotating shaft 11, when the center of gravity of the pre-heat preservation body 31 is above the rotating shaft 11 by adjusting the first elastic member 92 and the second elastic member 93, the pulling force of the first elastic member 92 and the second elastic member 93 to the rotating frame 91 is zero, then when the pre-heat preservation body 31 continues to rotate to the direction of opening the containing cavity 33, the rotating shaft 11 drives the rotating frame 91 to rotate, the first elastic member 92 generates elastic force and gradually increases, so as to enable the first elastic member 92 to generate resistance to the rotation of the pre-heat preservation body 31, and when the pre-heat preservation body 31 is opened to the maximum position, the pulling force of the first elastic member 92 reaches the maximum, the torque of the first elastic member 92 to the rotating frame 91 is also the maximum, so as to provide force assisting when the pre-heat preservation body 31 is closed, and the speed at the motion end point can be slowed down when the pre-heat preservation body 31 is closed. Conversely, when the pre-heat preservation body 31 is closed and attached with the post-heat preservation body 32, the elastic force of the second elastic member 93 is the maximum, the second elastic member 93 can provide force assisting to open the pre-heat preservation body 31. The first elastic member 92 and the second elastic member 93 can be arranged as rubber strips or tension springs.

[0046] The inner wall of the electric appliance box 2 is fixedly provided with a sliding rail 95, the sliding rail 95 is slidably connected with a mounting block 96, the mounting block 96 is provided with a latch 97, the latch 97 is slidably connected with the mounting block 96, and the sliding direction of the latch 97 relative to the mounting block 96 is perpendicular to the sliding direction of the mounting block 96 relative to the sliding rail 95. A plurality of clamping grooves 98 are formed in the length direction of the sliding rail 95, so that the latch 97 can be inserted into the clamping groove 98 to prevent the mounting block 96 from moving on the sliding rail 95. The first elastic member 92 and the second elastic member 93 are fixed to the mounting block 96 away from one end of the rotating frame 91, and the tension of the first elastic member 92 and the second elastic member 93 can be adjusted along with the movement of the mounting block 96 along the sliding rail 95.

[0047] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A water-cooled constant temperature bath, characterized in that: The system includes a base box (1), on the upper surface of which a heat-insulating pre-body (31) and a heat-insulating post-body (32) are mounted. A receiving cavity (33) is formed between the heat-insulating pre-body (31) and the heat-insulating post-body (32) at opposite positions. The receiving cavity (33) is used to vertically place the source bottle (4), and a heat transfer platform (6) is provided at the bottom of the source bottle (4). The heat transfer platform (6) is fixed to the upper surface of the base box (1), and an mounting platform (61) is integrally provided on the lower surface of the heat transfer platform (6). The mounting platform (61) is located on the base box. Inside the box (1), a water-cooled radiator (8) is provided below the mounting platform (61). A cooling plate (7) is sandwiched between the upper surface of the water-cooled radiator (8) and the lower surface of the mounting platform (61). The heating side of the cooling plate (7) is in contact with the water-cooled radiator (8). The water-cooled radiator (8) is connected to an inlet pipe (81) and an outlet pipe (82). The inlet pipe (81) and the outlet pipe (82) are connected through the water-cooled radiator (8). Cooling medium is passed into the water-cooled radiator (8) through the inlet pipe (81). The heat-insulating rear body (32) is fixedly connected to the base box (1). The heat-insulating front body (31) moves relative to the heat-insulating rear body (32) to open the receiving cavity (33). Magnets (34) are fixedly provided on the opposing surfaces of the heat-insulating front body (31) and the heat-insulating rear body (32). The lower part of the heat-insulating front body (31) is connected to the base box (1). A rotating shaft (11) is provided inside the base box (1). The rotating shaft (11) is horizontally arranged. A connecting rod is fixedly provided on the lower surface of the heat-insulating front body (31). Ear (312), the connecting ear (312) is inserted into the base box (1) and coaxially fixedly connected to the rotating shaft (11). One end of the rotating shaft (11) is connected to an assist device (9); the assist device (9) includes a rotating frame (91), a first elastic element (92) and a second elastic element (93). The rotating frame (91) is coaxially fixed on the rotating shaft (11). Two swing arms (94) are installed on the rotating frame (91). One of the first elastic element (92) and the second elastic element (93) The ends are respectively connected to two swing arms (94). The ends of the first elastic element (92) and the second elastic element (93) away from the swing arms (94) are installed on the base box (1). When the center of gravity of the heat preservation precursor (31) is directly above the rotating shaft (11), the first elastic element (92) and the second elastic element (93) are in a contracted or natural state. A slide rail (95) is fixedly provided on the base box (1). A mounting block (96) is slidably connected on the slide rail (95). A mounting block (96) is slidably connected on the mounting block (96). The pin (97) slides relative to the mounting block (96) in a direction perpendicular to the sliding direction of the mounting block (96) relative to the slide rail (95). The first elastic element (92) and the second elastic element (93) are fixed to the mounting block (96) at the ends away from the rotating frame (91). The slide rail (95) is provided with slots (98) for inserting the pin (97) at intervals along its length. When the heat insulation front body (31) is opened to the maximum position, the tension of the first elastic element (92) reaches its maximum. When the insulation front body (31) is closed and in contact with the insulation back body (32), the elastic force of the second elastic element (93) is at its maximum.

2. The water-cooled constant temperature bath according to claim 1, characterized in that: An electrical box (2) is provided on one side of the base box (1), and a control module (23) is provided inside the electrical box (2). A side box (5) is also fixedly provided on the base box (1), and an optical fiber sensor (51) is fixedly provided inside the side box (5). There are two optical fiber sensors (51), and the optical fiber sensors (51) are connected to the control module (23). The detection ends of the two optical fiber sensors (51) are respectively connected to the water inlet pipe (81) and the water outlet pipe (82).

3. The water-cooled constant temperature bath according to claim 2, characterized in that: A control panel (22) and an alarm light (21) are installed on one side of the electrical box (2). Both the control panel (22) and the alarm light (21) are connected to the control module (23). A temperature sensor (321) for measuring the temperature of the source bottle (4) is installed on the inner layer of the heat preservation body (32). The temperature sensor (321) is connected to the control module (23).

4. The water-cooled constant temperature bath according to claim 1, characterized in that: Two mounting platforms (61) are spaced apart, and a placement groove (62) is formed between the two mounting platforms (61). The placement groove (62) is used to place a heating element (63), and a pressure plate (64) is provided below the heating element (63) to abut against the heating element (63).

5. A water-cooled constant temperature bath according to claim 1, characterized in that: Two layers of heat insulation pads (65) are provided below the heat transfer platform (6), and clearance holes (651) are provided on the heat insulation pads (65). The mounting platform (61) is positioned corresponding to the clearance holes (651).

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