High-capacity bidirectional constant-temperature oscillation device

Abstract

The utility model discloses a high-capacity two-way constant-temperature oscillation device, which belongs to the technical field of sample detection and comprises a heat insulation box, an oscillation transmission module and a two-way constant-temperature control module, the bidirectional constant temperature control module comprises a semiconductor air conditioner assembly, an internal temperature sensor, an external temperature sensor, a digital display bidirectional constant temperature controller and a first power converter, and two parallel horizontal air inlets are formed in the end, located in the heat preservation box, of the semiconductor air conditioner assembly; a vertical air outlet and a horizontal air outlet are formed in the top and the bottom of the end, located in the heat preservation box, of the semiconductor air conditioner assembly correspondingly, air double-circulation is achieved, it is guaranteed that the temperature in the large-volume box body is uniform, and the temperature control precision is improved. The oscillation transmission module comprises a second power converter, a high-power digital display timing speed regulator, a direct-current gear motor and an oscillation transmission assembly; the temperature control module and the oscillation module are independently powered, so that the circuit is completely isolated, an interference source is blocked, and the temperature control precision of the temperature control module is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample detection, in particular to a large-capacity bidirectional constant-temperature oscillation device. Background Art

[0002] Thermostatic Oscillator is a device that can continuously generate stable temperature and frequency. It is often used in laboratories, medical, industrial and other fields. The development of thermostatic oscillators can be traced back to the early 20th century. The earliest thermostatic oscillators used mechanical methods to control temperature. Later, with the development of electronic technology, electronic thermostatic oscillators appeared. With the increasing demand for scientific research and industrial production, the performance and stability of thermostatic oscillators have also been greatly improved. At present, thermostatic oscillators have become one of the indispensable equipment in laboratories and industrial fields. When testing the effective state detection parameters such as effective phosphorus, effective molybdenum, and effective manganese of soil samples in the laboratory, the samples need to be oscillated and extracted in a constant temperature environment. The specification stipulates the use of a constant temperature oscillation device.

[0003] The constant temperature oscillators sold on the market have the disadvantages of small volume, only suitable for testing a small number of samples, low work efficiency, and for testing samples of thousands or even more, a test batch of samples needs to be pre-processed several times, making it difficult to carry out quality control work, and unable to guarantee the precision and accuracy of the test data. In addition, the instrument can only heat but not cool, and cannot be used normally when the ambient temperature is higher than the temperature required for testing.

[0004] Therefore, a new technical solution is urgently needed in the prior art to solve this problem. Utility Model Content

[0005] In order to overcome the deficiencies in the prior art, the utility model provides a large-capacity bidirectional constant temperature oscillator, which is used to solve the problem that the constant temperature oscillator has a small volume and cannot be used normally when the ambient temperature is higher than the temperature required for detection.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a large-capacity two-way constant temperature oscillation device, including an incubator; an oscillation transmission module is arranged in the incubator, and also includes a two-way constant temperature control module; the two-way constant temperature control module includes a semiconductor air conditioning component, an internal temperature sensor, an external temperature sensor, a digital display two-way constant temperature controller and a first power converter; the semiconductor air conditioning component is installed on the side wall of the incubator, and one end of the semiconductor air conditioning component located in the incubator is provided with two side-by-side horizontal air inlets, and the top and bottom of one end of the semiconductor air conditioning component located in the incubator are respectively provided with vertical air outlets and horizontal air outlets, and the semiconductor air conditioning component is electrically connected to the digital display two-way constant temperature controller; the internal temperature sensor, the external temperature sensor and the first power converter are electrically connected to the digital display two-way constant temperature controller respectively;

[0007] The oscillation transmission module includes a second power converter, a high-power digital display timing speed regulator, a DC reduction motor and an oscillation transmission component; the second power converter, the high-power digital display timing speed regulator and the DC reduction motor are electrically connected in sequence; the DC reduction motor drives the oscillation transmission component.

[0008] Preferably, the thermal insulation box comprises a box body and an upper cover; the inner and outer walls of the box body are made of stainless steel, and polyurethane foam is filled between the inner and outer walls of the box body; the upper cover adopts a broken bridge aluminum frame plus a three-layer hollow glass structure, and the upper cover and the box body are connected by air support.

[0009] Preferably, the oscillation transmission assembly comprises an oscillating part and a transmission part; the oscillating part comprises an oscillator support, a slide rail, a slider, a support plate and a sample tray; the oscillator support is fixedly mounted on the bottom surface of the incubator, the top of the oscillator support is fixedly provided with a slide rail; the slide rail is provided with a slider; the top of the slider is fixedly provided with a support plate; the top of the support plate is fixed with a sample tray;

[0010] The transmission part includes a transmission support seat, a directional slide, a sliding shaft, a short circuit, a live joint, a crank arm and a connecting plate; the transmission support seat is fixedly installed on the bottom surface of the oscillator support, and the directional slide is fixedly arranged on the side wall of the transmission support seat; the directional slide is horizontally slidably matched with the sliding shaft; one end of the sliding shaft is vertically fixedly connected to one end of the connecting plate, and the other end of the sliding shaft is fixedly connected to one end of the short circuit; the other end of the short circuit is rotatably connected to one end of the live joint; the other end of the live joint is rotatably connected to one end of the crank arm; the other end of the crank arm is fixedly connected to the output shaft of the DC reduction motor; the DC reduction motor is fixedly installed on the side wall of the transmission support seat; the other end of the connecting plate is fixedly connected to the support plate.

[0011] Through the above design scheme, the utility model can bring the following beneficial effects:

[0012] 1. By setting up a two-way constant temperature control module, two-way temperature control is achieved. When the temperature inside the box is higher or lower than the set temperature, the system automatically switches to cooling / heating working mode;

[0013] 2. Two parallel horizontal air inlets are arranged at one end of the semiconductor air conditioning component in the insulation box, and vertical and horizontal air outlets are arranged at the top and bottom of the semiconductor air conditioning component in the insulation box, respectively. The dual-fan design is adopted to realize double air circulation, ensure uniform temperature in the box, and improve temperature control accuracy;

[0014] 3. The digital display bidirectional thermostatic controller is powered by the first power converter, the oscillation transmission module is powered by the second power converter, and the temperature control module and the oscillation module are powered independently, so that the circuit is completely isolated, the interference source is blocked, and the temperature control accuracy of the temperature control module is higher;

[0015] 4. Use high-power digital display timing speed regulator, increase motor power, the transmission part of the oscillation transmission component adopts an eccentric structure, and the oscillation part adopts a slide rail pulley walking structure to improve stability and reliability while increasing the oscillator capacity and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the whole of a large-capacity bidirectional constant temperature oscillation device.

[0017] Figure 2 It is a three-dimensional schematic diagram of a transmission support seat of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0018] Figure 3 The utility model is a schematic diagram of the structure of a slide rail and a slider of a large-capacity bidirectional constant temperature oscillation device.

[0019] Figure 4 The utility model is a schematic diagram of the slide rail and slider structure AA of a large-capacity bidirectional constant temperature oscillation device.

[0020] Figure 5 It is a front schematic diagram of a support plate of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0021] Figure 6 It is a side schematic diagram of a support plate of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0022] Figure 7 The utility model is a front schematic diagram of a sample plate of a large-capacity bidirectional constant temperature oscillation device.

[0023] Figure 8 It is a side schematic diagram of the transmission part of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0024] Fig. 9 This is a front view of a semiconductor air conditioning component of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0025] Fig.10 The utility model is a side view of a semiconductor air conditioning component of a large-capacity bidirectional constant temperature oscillation device.

[0026] Fig.11 The utility model discloses an oscillation circuit diagram of a large-capacity bidirectional constant-temperature oscillation device.

[0027] Fig.12 The utility model discloses a circuit diagram of a bidirectional constant temperature control module of a large-capacity bidirectional constant temperature oscillating device.

[0028] Fig.13 This is a diagram of the wind duct arrangement of a semiconductor air conditioning component of a large-capacity bidirectional constant temperature oscillation device of the utility model.

[0029] In the figure, 1-insulation box, 11-box, 12-upper cover, 13-gas support, 2-oscillation transmission module, 21-second power converter, 22-high-power digital display timing speed regulator, 23-DC reduction motor, 24-oscillation transmission assembly, 241-oscillation part, 2411-oscillator support, 2412-slide rail, 2413-slider, 2414-support plate, 2415-sample plate, 242-transmission part, 2421-transmission support seat, 2422-directional slide, 2423-slide shaft, 2424-short circuit, 2425-live connection, 2426-crank arm, 2427-connecting plate, 3-bidirectional constant temperature control module, 31-semiconductor air conditioning assembly, 32-internal temperature sensor, 33-external temperature sensor, 34-digital display bidirectional constant temperature controller, 35-first power converter. DETAILED DESCRIPTION

[0030] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings.

[0031] It should be noted that the terms "front and back, up and down, left and right" and the like described in the text are merely simplified expressions based on the accompanying drawings for the purpose of intuitively describing the positional relationship, and are not limitations of the technical solution.

[0032] In order to more clearly illustrate the utility model, the utility model is further described below in conjunction with the preferred embodiments. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive, and the user can make various changes to the following parameters without departing from the mechanism and scope of the utility model set forth in the claims. In order to avoid confusing the essence of the utility model, the known methods and processes are not described in detail.

[0033] By the attached Figures 1 to 13As shown: a large-capacity bidirectional constant temperature oscillation device, comprising an incubator 1; an oscillation transmission module 2 is arranged in the incubator 1, and also comprises a bidirectional constant temperature control module 3; the bidirectional constant temperature control module 3 comprises a semiconductor air conditioning component 31, an internal temperature sensor 32, an external temperature sensor 33, a digital display bidirectional constant temperature controller 34 and a first power converter 35; the semiconductor air conditioning component 31 is installed on the side wall of the incubator 1, and one end of the semiconductor air conditioning component 31 located in the incubator 1 is provided with two side-by-side horizontal air inlets, and the top and bottom of one end of the semiconductor air conditioning component 31 located in the incubator 1 are respectively provided with vertical air outlets and horizontal air outlets, and the semiconductor air conditioning component 31 is electrically connected to the digital display bidirectional constant temperature controller 34; the internal temperature sensor 32, the external temperature sensor 33 and the first power converter 35 are respectively electrically connected to the digital display bidirectional constant temperature controller 34;

[0034] The oscillation transmission module 2 includes a second power converter 21, a high-power digital display timing speed regulator 22, a DC reduction motor 23 and an oscillation transmission component 24; the second power converter 21, the high-power digital display timing speed regulator 22 and the DC reduction motor 23 are electrically connected in sequence; the DC reduction motor 23 drives the oscillation transmission component 24. The temperature control module is an analog signal, and the DC motor is prone to generate multi-frequency interference sources, which are fed back to the temperature control module through the power supply to interfere with the temperature signal. The temperature control module and the oscillation module are independently powered to completely isolate the circuit, which will block the interference source and make the temperature control accuracy of the temperature control module higher.

[0035] To further ensure the thermal insulation performance of the box, the thermal insulation box 1 includes a box body 11 and an upper cover 12; the inner wall and outer wall of the box body 11 are made of stainless steel, and polyurethane foam is filled between the inner wall and the outer wall of the box body 11; the upper cover 12 adopts a thermal insulation aluminum frame plus a three-layer hollow glass structure to ensure the thermal insulation performance of the box and facilitate observation; the upper cover 12 and the box body 11 are connected by a gas support 13.

[0036] In order to further obtain better thermal insulation performance, the thickness of the polyurethane foam is 5 cm.

[0037] In order to further improve stability and reliability while increasing the oscillator capacity and work efficiency, the transmission part of the oscillation transmission assembly adopts an eccentric structure, and the oscillation part adopts a slide rail and pulley walking structure. The oscillation transmission assembly 24 includes an oscillation part 241 and a transmission part 242; the oscillation part 241 includes an oscillator support 2411, a slide rail 2412, a slider 2413, a support plate 2414 and a sample tray 2415; the oscillator support 2411 is fixedly installed on the bottom surface of the incubator 1, and the top of the oscillator support 2411 is fixedly provided with a slide rail 2412; the slide rail 2412 is provided with a slider 2413; the top of the slider 2413 is fixedly provided with a support plate 2414; the top of the support plate 2414 is fixed with a sample tray 2415;

[0038] The transmission part 242 includes a transmission support seat 2421, a directional slide 2422, a sliding shaft 2423, a short circuit 2424, a movable joint 2425, a crank arm 2426 and a connecting plate 2427; the transmission support seat 2421 is fixedly installed on the bottom surface of the oscillator support 2411, and the directional slide 2422 is fixedly arranged on the side wall of the transmission support seat 2421; the directional slide 2422 is horizontally slidably connected with the sliding shaft 2423; one end of the sliding shaft 2423 is vertically connected with one end of the connecting plate 2427 The other end of the sliding shaft 2423 is fixedly connected to one end of the short circuit 2424; the other end of the short circuit 2424 is rotatably connected to one end of the movable joint 2425; the other end of the movable joint 2425 is rotatably connected to one end of the crank arm 2426; the other end of the crank arm 2426 is fixedly connected to the output shaft of the DC reduction motor 23; the DC reduction motor 23 is fixedly mounted on the side wall of the transmission support seat 2421; the other end of the connecting plate 2427 is fixedly connected to the support plate 2414.

[0039] In the specific implementation, the main structure module of the instrument is designed and produced first; this part involves the mutual coordination and space allocation of each system of the instrument. In order to facilitate the observation of the state of the sample during extraction, the upper cover 12 adopts hollow glass and broken bridge aluminum frame. The goal of the insulation box module is to achieve good insulation effect, reduce energy consumption, save energy and reduce emissions. Selection of insulation materials: Currently commonly used insulation materials include benzene board, whose thermal conductivity is 0.041w / (mk); glass wool, whose thermal conductivity is 0.036w / (mk); extruded board, whose thermal conductivity is 0.030w / (mk); polyurethane foam material, whose thermal conductivity is 0.022w / (mk). To ensure constant temperature during the experiment, it is decided after comparison that this instrument selects polyurethane foam material as the insulation material of the box, with a thickness of 5cm. Polyurethane foam material has thermal insulation to prevent heat loss and improve thermal efficiency. For ease of operation, a cover handle can be installed on the hollow glass frame; a control box is installed on the side wall of the box body 11 of the insulation box 1, and a display screen and a switch are set on the control box. The display screen is used to display the data of the digital display bidirectional constant temperature controller 34 and the data of the high-power digital display timing speed regulator 22; the switch is used to control the opening and closing of the first power converter 35 and the second power converter 21.

[0040] The instrument oscillation transmission module is designed and manufactured; the large oscillation module has a large capacity and can process more samples. It can accommodate 120 samples at a time, which increases the work efficiency by 6 times. The oscillation speed and oscillation time are adjustable, and it has a digital display function. Under the control of the high-power digital display timing speed regulator 22, the sample plate 2415 is reciprocated in a certain period to achieve the purpose of oscillation. Among them: the timing time can be freely set within 0-9999 minutes; the oscillation frequency can be freely set within 0-300 rpm.

[0041] The instrument constant temperature control module is designed and manufactured; the high-precision constant temperature controller module realizes the goal of automatically switching the cooling / heating mode when the ambient temperature is higher or lower than the set constant temperature value. The lead of the internal temperature sensor 32 is connected to the digital display bidirectional constant temperature controller 34; one end of the external temperature sensor 33 is connected to the external heat sink and the other end of the lead is connected to the digital display bidirectional constant temperature controller 34; the semiconductor air conditioning component 31 is installed on the side wall of the incubator 1; the internal fan power lead of the semiconductor air conditioning component 31 is connected to the digital display bidirectional constant temperature controller 34; the internal fan is connected to the internal heat sink; the power lead of the semiconductor air conditioning component 31 is connected to the digital display bidirectional constant temperature controller 34; the external fan power lead is connected to the digital display bidirectional constant temperature controller 34; the external cooling fan is connected to the external heat sink.

[0042] Instrument control and circuit module design and debugging; oscillation circuit module, oscillation power switch is connected to the second power converter 21; V+, GND of the second power converter 21 are connected to VC+, VC- of the high-power digital display timing speed regulator 22; VD+, VD- of the high-power digital display timing speed regulator 22 are connected to the DC reduction motor 23;

[0043] Bidirectional constant temperature control module: The constant temperature power switch is connected to the first power converter 35; V+ and GND of the first power converter 35 are connected to V+ and V- of the digital display bidirectional constant temperature controller 34; V1+ and V- of the digital display bidirectional constant temperature controller 34 are connected to 1V+ and 1V- of the semiconductor air conditioning component 31; V3+ and V4- of the digital display bidirectional constant temperature controller 34 are connected to 3V+ and 4V- of the semiconductor air conditioning component 31; V5+ and V6- of the digital display bidirectional constant temperature controller 34 are connected to 5V+ and 6V- of the semiconductor air conditioning component 31. The design and debugging of the circuit part of the device are completed. After power-on, the temperature control, oscillation frequency, and air cooling parts operate normally.

[0044] Finally, the instrument is debugged and the data is tested. After the device is completed, national standard substances are used to conduct experiments according to the specified specifications, and the test data are statistically analyzed.

[0045] The utility model solves the problem of uneven temperature control of large volumes and is suitable for large-volume sample testing. The constant temperature oscillator sold on the market has a small volume and is only suitable for the testing of a small number of samples. The work efficiency is low. If the volume is to be increased, the temperature control is prone to unevenness. For thousands or even tens of thousands of test samples, the test samples of a test batch need to be pre-processed several times, which makes it difficult to carry out quality control work and cannot guarantee the precision and accuracy of the test data. The device adopts a dual fan design in the box to achieve double air circulation and ensure uniform temperature in the box. A high-precision temperature sensor is used to improve the constant temperature accuracy. The high-precision constant temperature controller module automatically realizes the conversion of cooling / heating mode when the ambient temperature is higher or lower than the set constant temperature value. The conversion temperature difference is not more than 0.5℃. The temperature control resolution is not more than 0.1℃. The temperature value in the incubator is displayed in real time by digital and the constant temperature value can be freely set in the range of -0.5℃ to +50℃.

[0046] Obviously, the above-described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments 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.

Claims

1. A large-capacity bidirectional constant temperature oscillation device, comprising an insulation box (1); an oscillation transmission module (2) is arranged in the insulation box (1), characterized in that: It also includes a bidirectional constant temperature control module (3); the bidirectional constant temperature control module (3) includes a semiconductor air conditioning component (31), an internal temperature sensor (32), an external temperature sensor (33), a digital display bidirectional constant temperature controller (34) and a first power converter (35); the semiconductor air conditioning component (31) is installed on the side wall of the heat preservation box (1); one end of the semiconductor air conditioning component (31) located in the heat preservation box (1) is provided with two parallel horizontal air inlets; the top and bottom of one end of the semiconductor air conditioning component (31) located in the heat preservation box (1) are respectively provided with vertical air outlets and horizontal air outlets; the semiconductor air conditioning component (31) is electrically connected to the digital display bidirectional constant temperature controller (34); the internal temperature sensor (32), the external temperature sensor (33) and the first power converter (35) are respectively electrically connected to the digital display bidirectional constant temperature controller (34); The oscillation transmission module (2) comprises a second power converter (21), a high-power digital display timing speed regulator (22), a DC reduction motor (23) and an oscillation transmission component (24); the second power converter (21), the high-power digital display timing speed regulator (22) and the DC reduction motor (23) are electrically connected in sequence; and the DC reduction motor (23) drives the oscillation transmission component (24).

2. A large-capacity bidirectional constant temperature oscillation device according to claim 1, characterized in that: The thermal insulation box (1) comprises a box body (11) and an upper cover (12); the inner wall and the outer wall of the box body (11) are made of stainless steel, and polyurethane foam is filled between the inner wall and the outer wall of the box body (11); the upper cover (12) adopts a thermally-insulated aluminum frame plus a three-layer hollow glass structure, and the upper cover (12) and the box body (11) are connected via a gas support (13).

3. A large-capacity bidirectional constant temperature oscillation device according to claim 2, characterized in that: The thickness of the polyurethane foam is 5 cm.

4. A large-capacity bidirectional constant temperature oscillation device according to claim 1, characterized in that: The oscillation transmission component (24) comprises an oscillating part (241) and a transmission part (242); the oscillating part (241) comprises an oscillator support (2411), a slide rail (2412), a slider (2413), a support plate (2414) and a sample tray (2415); the oscillator support (2411) is fixedly mounted on the bottom surface of the thermal insulation box (1); the top of the oscillator support (2411) is fixedly provided with a slide rail (2412); the slider (2413) is provided on the slide rail (2412); the support plate (2414) is fixedly provided on the top of the slider (2413); the sample tray (2415) is fixed on the top of the support plate (2414); The transmission part (242) comprises a transmission support seat (2421), a directional slideway (2422), a sliding shaft (2423), a short circuit (2424), a movable joint (2425), a crank arm (2426) and a connecting plate (2427); the transmission support seat (2421) is fixedly mounted on the bottom surface of the oscillator support (2411), and a directional slideway (2422) is fixedly arranged on the side wall of the transmission support seat (2421); the directional slideway (2422) is horizontally slidably matched with the sliding shaft (2423); one end of the sliding shaft (2423) is connected to the connecting plate (2427) One end of the sliding shaft (2423) is vertically fixedly connected, and the other end of the sliding shaft (2423) is fixedly connected to one end of the short circuit (2424); the other end of the short circuit (2424) is rotatably connected to one end of the movable joint (2425); the other end of the movable joint (2425) is rotatably connected to one end of the crank arm (2426); the other end of the crank arm (2426) is fixedly connected to the output shaft of the DC reduction motor (23); the DC reduction motor (23) is fixedly mounted on the side wall of the transmission support seat (2421); the other end of the connecting plate (2427) is fixedly connected to the supporting plate (2414).

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