Anti-frosting temperature sensing structure of ultralow-temperature cabinet

Abstract

The utility model discloses an ultralow temperature cabinet anti-frosting temperature sensing structure which comprises a temperature sensor fixedly connected to the top of an inner cavity of an ultralow temperature cabinet, the surface of the temperature sensor is sleeved with a protective sleeve, the top of the protective sleeve is fixedly connected with the top of the inner wall of the ultralow temperature cabinet, and the inner wall of the protective sleeve is fixedly connected with a heating coil. An electric heating rod is fixedly connected to the position, located at the bottom of the temperature sensor, of the inner surface of the protective sleeve, a control terminal is fixedly connected to the position, close to the front, of the bottom of the inner wall of the ultralow-temperature cabinet, a cabinet door is movably connected to the front side of the ultralow-temperature cabinet through a pin shaft, and a grip is fixedly connected to the left side of the cabinet door. According to the utility model, the heating coil and the electric heating rod are firstly started through the control terminal, so that the heating coil and the electric heating rod radiate heat, the temperature sensor is heated by utilizing the heating coil and the electric heating rod, and at the moment, automatic defrosting can be realized, so that the effect of a defrosting function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of ultra-low temperature cabinet technology, specifically to an anti-frost temperature sensing structure for ultra-low temperature cabinets. Background Technology

[0002] Ultra-low temperature chambers are specialized equipment that can provide extremely low temperature environments. They are widely used in scientific research, medical, and industrial fields, and are mainly used in scientific research laboratories and medical institutions to preserve biological samples, vaccines, plasma, etc. The temperature range can reach minus 20 degrees to minus 80 degrees or even lower.

[0003] In the process of refrigerating and storing items, ultra-low temperature cabinets are required. In order for the ultra-low temperature cabinets to achieve stable cooling, a temperature sensing structure is needed to monitor the temperature inside the cabinet in real time. During use, the surface of the temperature sensing structure is very prone to frost formation. Over time, the temperature sensing structure will be covered by frost, which will lead to deviations in the monitoring data.

[0004] Therefore, the design of the ultra-low temperature cabinet needs to be modified to give it an anti-frost structure. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an anti-frost temperature sensing structure for ultra-low temperature cabinets. This structure has the advantage of being anti-frost and solves the problem that the surface of the temperature sensing structure is very prone to frost formation during use of ultra-low temperature cabinets. Over time, the temperature sensing structure will be covered by frost, leading to deviations in the detection data.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temperature sensing structure for preventing frost formation in an ultra-low temperature cabinet, comprising a temperature sensor fixedly connected to the top of the inner cavity of the ultra-low temperature cabinet, a protective sleeve covering the surface of the temperature sensor, the top of the protective sleeve being fixedly connected to the top of the inner wall of the ultra-low temperature cabinet, a heating coil being fixedly connected to the inner wall of the protective sleeve, and an electric heating rod being fixedly connected to the inner surface of the protective sleeve and located at the bottom of the temperature sensor.

[0007] A control terminal is fixedly connected to the bottom front of the inner wall of the ultra-low temperature cabinet, and a cabinet door is movably connected to the front of the ultra-low temperature cabinet via a pin.

[0008] As a preferred embodiment of this utility model, a handle is fixedly connected to the left side of the cabinet door, and the handle is U-shaped.

[0009] As a preferred embodiment of this invention, the surface of the grip is provided with anti-slip texture.

[0010] As a preferred embodiment of this invention, the bottom of the ultra-low temperature cabinet is fixedly connected with anti-slip blocks, and the number of anti-slip blocks is four.

[0011] As a preferred embodiment of this invention, an observation window is provided at the upper front side of the cabinet door.

[0012] As a preferred embodiment of this invention, the protective sleeve is made of stainless steel and is cylindrical in shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model first activates the heating coil and electric heating rod through the control terminal, so that the heating coil and electric heating rod dissipate heat and use the heating coil and electric heating rod to heat the temperature sensor, at which point automatic defrosting can be achieved, thereby achieving the effect of defrosting function.

[0015] 2. By providing a handle, this utility model increases the contact area between the user's hands and the cabinet door, making it easier for the user to operate the cabinet door. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the ultra-low temperature cabinet of this utility model;

[0017] Figure 2 This is a partial sectional view of the main structure of the ultra-low temperature cabinet of this utility model;

[0018] Figure 3 This is a three-dimensional view of the cabinet door structure after it is opened;

[0019] Figure 4 This is a front sectional view of the protective sleeve structure of this utility model;

[0020] Figure 5 This is a structural system diagram of the present utility model.

[0021] In the diagram: 1. Ultra-low temperature cabinet; 2. Cabinet door; 3. Temperature sensor; 4. Protective cover; 5. Heating coil; 6. Electric heating rod; 7. Control terminal; 10. Handle; 11. Anti-slip texture; 12. Anti-slip block; 13. Observation window. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5As shown, the present invention provides an anti-frost temperature sensing structure for an ultra-low temperature cabinet, including a temperature sensor 3 fixedly connected to the top of the inner cavity of the ultra-low temperature cabinet 1, a protective sleeve 4 covering the surface of the temperature sensor 3, the top of the protective sleeve 4 being fixedly connected to the top of the inner wall of the ultra-low temperature cabinet 1, a heating coil 5 being fixedly connected to the inner wall of the protective sleeve 4, and an electric heating rod 6 being fixedly connected to the inner surface of the protective sleeve 4 and located at the bottom of the temperature sensor 3.

[0024] A control terminal 7 is fixedly connected to the bottom front of the inner wall of the ultra-low temperature cabinet 1, and a cabinet door 2 is movably connected to the front of the ultra-low temperature cabinet 1 via a pin.

[0025] refer to Figure 1 A handle 10 is fixedly connected to the left side of cabinet door 2. The handle 10 is U-shaped.

[0026] As a technical optimization of this utility model, by setting the handle 10, the contact area between the user's hands and the cabinet door 2 can be increased, making it more convenient for the user to move the cabinet door 2.

[0027] refer to Figure 1 The surface of the grip 10 is provided with anti-slip texture 11.

[0028] As a technical optimization of this utility model, by setting anti-slip texture 11, the friction between the user's hands and the handle 10 can be increased, preventing the handle 10 from slipping out of the hand during use.

[0029] refer to Figure 1 The bottom of the ultra-low temperature cabinet 1 is fixedly connected with anti-slip blocks 12, and there are four anti-slip blocks 12.

[0030] As a technical optimization of this utility model, by setting the anti-slip block 12, the friction between the cryogenic cabinet 1 and the ground can be increased, preventing the cryogenic cabinet 1 from slipping and moving during use.

[0031] refer to Figure 1 An observation window 13 is provided on the upper front side of cabinet door 2.

[0032] As a technical optimization of this utility model, by setting an observation window 13, the temperature sensor 3 inside the ultra-low temperature cabinet 1 can be observed without opening the cabinet door 2, which is convenient for users.

[0033] refer to Figure 3 The protective sleeve 4 is made of stainless steel and is cylindrical in shape.

[0034] As a technical optimization of this utility model, by setting a protective sleeve 4 made of stainless steel, the protective sleeve 4 can be prevented from rusting and damaged due to rusting.

[0035] The working principle and usage process of this utility model are as follows: In use, the temperature inside the ultra-low temperature cabinet 1 is first detected in real time by the temperature sensor 3. The detected data is transmitted to the control terminal 7. The control terminal 7 analyzes and judges the detected data. When the detected temperature of the temperature sensor 3 deviates significantly from the set temperature, the control terminal 7 determines that the temperature sensor 3 is frosted. Then, the control terminal 7 activates the heating coil 5 and the electric heating rod 6 to dissipate heat. The heating coil 5 and the electric heating rod 6 heat the temperature sensor 3, melting the frost on the surface of the temperature sensor 3. At this time, automatic defrosting is achieved, thus achieving the effect of defrosting function.

[0036] In summary, this anti-frost temperature sensing structure for ultra-low temperature cabinets, by incorporating an ultra-low temperature cabinet 1, cabinet door 2, temperature sensor 3, protective cover 4, heating coil 5, electric heating rod 6, and control terminal 7, solves the problem that the surface of the temperature sensing structure of the ultra-low temperature cabinet is very prone to frost formation during use. Over time, the temperature sensing structure will be covered by frost, leading to deviations in the detection data.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature sensing structure for preventing frost formation in an ultra-low temperature cabinet, comprising a temperature sensor (3) fixedly connected to the top of the inner cavity of an ultra-low temperature cabinet (1), a protective sleeve (4) covering the surface of the temperature sensor (3), the top of the protective sleeve (4) being fixedly connected to the top of the inner wall of the ultra-low temperature cabinet (1), a heating coil (5) being fixedly connected to the inner wall of the protective sleeve (4), and an electric heating rod (6) being fixedly connected to the inner surface of the protective sleeve (4) and located at the bottom of the temperature sensor (3); A control terminal (7) is fixedly connected to the bottom front of the inner wall of the ultra-low temperature cabinet (1), and a cabinet door (2) is movably connected to the front side of the ultra-low temperature cabinet (1) through a pin.

2. The anti-frosting temperature sensing structure of an ultra-low temperature cabinet according to claim 1, characterized in that: A handle (10) is fixedly connected to the left side of the cabinet door (2), and the handle (10) is U-shaped.

3. The anti-frosting temperature sensing structure of the ultra-low temperature cabinet according to claim 2, characterized in that: The surface of the grip (10) is provided with anti-slip texture (11).

4. The anti-frosting temperature sensing structure of an ultra-low temperature cabinet according to claim 1, characterized in that: The bottom of the ultra-low temperature cabinet (1) is fixedly connected with anti-slip blocks (12), and the number of anti-slip blocks (12) is four.

5. The anti-frosting temperature sensing structure of an ultra-low temperature cabinet according to claim 1, characterized in that: An observation window (13) is provided on the upper front side of the cabinet door (2).

6. The anti-frosting temperature sensing structure of an ultra-low temperature cabinet according to claim 1, characterized in that: The protective sleeve (4) is made of stainless steel and is cylindrical in shape.

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