Back icing monitoring mechanism of direct-cooling refrigerator

Abstract

The utility model belongs to the technical field of direct-cooling refrigerators, and particularly discloses a direct-cooling refrigerator back icing monitoring mechanism which comprises a direct-cooling refrigerator, an environment sensor, a defrosting sensor and an internal sensor, and the direct-cooling refrigerator comprises a refrigerating chamber and a freezing chamber arranged below the refrigerating chamber; a protection mechanism is arranged on the top of a refrigerator shell of the direct-cooling refrigerator, and the environment sensor is arranged in the protection mechanism. According to the icing monitoring mechanism for the back of the direct cooling refrigerator, the three temperature sensors are adopted and arranged at different positions of the direct cooling refrigerator, and real-time monitoring of the internal temperature and the environment temperature of the direct cooling refrigerator is achieved; through the arrangement of the protection mechanism, the installation mechanism and the installation block, the three temperature sensors are installed, and the installation mode not only can protect the temperature sensors, but also can facilitate the subsequent disassembly and replacement of the temperature sensors.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct-cooling refrigerators, and particularly relates to a monitoring mechanism for ice formation on the back of a direct-cooling refrigerator. Background Art

[0002] A direct-cooling refrigerator is a common type of refrigerator. Due to its advantages such as energy conservation, insurance, and good reliability, it is liked by many consumers. Currently, most direct-cooling refrigerators use a fixed-temperature reset thermostat to mechanically control the start and stop of the compressor through the warm and cold points of the thermostat. In high-temperature and high-humidity environments, or in the low-temperature strongest gear and when there are many water-containing foods inside the refrigerator, the refrigeration time of the refrigerator is long, and sometimes it even does not stop. In this case, there will be problems that trouble consumers: 1. The frosting phenomenon on the surface of the wire tube or aluminum plate evaporator is serious; 2. The product cannot defrost automatically. As the use time accumulates, the frosting on the surface of the freezing evaporator is serious; as a result, during daily use, with the passage of time, a layer of ice covers the surface of the evaporator, which is very difficult to clean, affecting the refrigeration efficiency and the user experience is poor; 3. The mechanical thermostat cannot accurately understand the temperature inside the refrigerator. If the user's gear setting is improper, there will be problems such as the refrigerator being too cold or too hot, and the food being frozen or spoiled.

[0003] To solve such problems, there are also some methods to improve ice formation on the back, mainly by adjusting the warm point of the thermostat or by adjusting the position of the temperature-sensing tube of the thermostat to extend the shutdown defrosting time. However, due to the structural limitations, the position of the temperature-sensing tube of the thermostat cannot be changed arbitrarily. This solution has a small adjustable range and can only reduce the degree of ice accumulation on the back to a certain extent, and cannot completely solve the problem of ice formation on the back, and at the same time, it cannot solve the problem of precise temperature control inside the box body.

[0004] If a sensor is installed inside the direct-cooling refrigerator to monitor the temperature inside the refrigerator, the sensor is generally pasted inside the refrigerator or designed in a strap type and sleeved on the pipeline inside the refrigerator. In the long-term use process, the adhesiveness of the pasted type will decrease, resulting in the sensor detaching or falling off, and thus causing deviation in temperature monitoring; if the strap type design is used, it is difficult to remove the sensor, which is not conducive to the subsequent maintenance work. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the above problems existing in the prior art, and provide a monitoring mechanism for ice formation on the back of a direct-cooling refrigerator. Three temperature sensors are used and are arranged at different positions of the direct-cooling refrigerator to realize real-time monitoring of the temperature inside the direct-cooling refrigerator and the ambient temperature; through the setting of a protection mechanism, an installation mechanism and an installation block, they are used for the installation of the three temperature sensors. This installation method can not only protect the temperature sensors, but also facilitate the subsequent removal and replacement of the temperature sensors.

[0006] To achieve the above technical objectives and reach the above technical effects, the present utility model is realized through the following technical solutions:

[0007] A direct-cooling refrigerator back icing monitoring mechanism includes a direct-cooling refrigerator, an ambient sensor, a defrosting sensor, and an internal sensor. The direct-cooling refrigerator includes a refrigerating chamber and a freezing chamber arranged below the refrigerating chamber;

[0008] A protection mechanism is arranged on the top of the cabinet shell of the direct-cooling refrigerator, and the ambient sensor is arranged inside the protection mechanism;

[0009] An installation mechanism is arranged on the refrigerating evaporator pipeline inside the direct-cooling refrigerator, and the defrosting sensor is arranged inside the installation mechanism;

[0010] An installation groove is arranged inside the cabinet liner of the refrigerating chamber. An installation block is hermetically arranged inside the installation groove, and the internal sensor is arranged at one end of the installation block located inside the installation groove.

[0011] Further, the ambient sensor, the defrosting sensor, and the internal sensor are all temperature sensors.

[0012] Further, a buckle groove is arranged on one side surface of the installation block away from the internal sensor.

[0013] Further, the protection mechanism includes a rotating shaft and a protection outer shell arranged in front of the rotating shaft. One end of the rotating shaft is rotatably installed on the top of the cabinet shell of the direct-cooling refrigerator, and a protection top cover is rotatably installed at the other end of the rotating shaft. The bottom of the protection top cover is hermetically connected to the top of the protection outer shell;

[0014] The protection outer shell is arranged on the top of the cabinet shell of the direct-cooling refrigerator;

[0015] An installation straight plate is arranged at the lower end outside the rotating shaft. A placement groove is arranged at one end of the top of the installation straight plate away from the rotating shaft, and the ambient sensor is located inside the placement groove;

[0016] An avoidance groove matched with the installation straight plate is arranged at the bottom of the protection outer shell.

[0017] Further, a rotating protrusion is integrally formed at one end of the installation straight plate away from the placement groove.

[0018] Further, the installation mechanism includes a connecting piece and extension parts vertically installed at both ends of the connecting piece. The other ends of the extension parts are fixedly installed with arc-shaped clamping plates, and the inner surface of the arc-shaped clamping plates fits on the refrigerating evaporator pipeline inside the direct-cooling refrigerator;

[0019] A groove is arranged on the inner surface of the arc-shaped clamping plate, and the defrosting sensor is installed inside the groove.

[0020] Further, the connecting member includes two connecting portions arranged in parallel and side by side, and lifting slides disposed at both ends outside the connecting portions, and the extending portion is fixedly connected to the lifting slides;

[0021] A connecting rod is fixedly connected between the two connecting portions;

[0022] The lifting slide is provided with a chute adapted to the connecting portion;

[0023] Both ends of the connecting portion are connected with springs, and the other ends of the springs are connected in the chute.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] 1. The present utility model provides a direct-cooling refrigerator back icing monitoring mechanism, which adopts three temperature sensors, namely an ambient sensor, a defrost sensor and an internal sensor, and arranges the three temperature sensors on the top of the cabinet of the direct-cooling refrigerator, on the evaporator pipeline inside the direct-cooling refrigerator and in the inner liner of the refrigerating chamber of the direct-cooling refrigerator, so as to realize multi-faceted and real-time monitoring of the internal and ambient temperatures of the direct-cooling refrigerator.

[0026] 2. In the present utility model, the ambient sensor is arranged on the top of the cabinet of the direct-cooling refrigerator to monitor the ambient temperature where the direct-cooling refrigerator is located in real time; the defrost sensor is arranged on the evaporator pipeline of the direct-cooling refrigerator, so as to sense the surface temperature of the evaporator, and further judge the icing condition in the refrigerating chamber; by arranging the internal sensor inside the inner liner of the refrigerating chamber, the temperature in the refrigerating chamber can be sensed, and accurate monitoring of the temperature in the refrigerating chamber can be realized.

[0027] 3. Through the settings of the protection mechanism, the installation mechanism and the installation block, which are respectively used for installing the ambient sensor, the defrost sensor and the internal sensor, not only can the temperature sensors be protected, but also the subsequent removal and replacement of the temperature sensors can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0029] Figure 1 is the main structural view of the direct-cooling refrigerator of the present utility model;

[0030] Figure 2 is the schematic structural view of the protection mechanism of the present utility model;

[0031] Figure 3 is the exploded view of the structure of the protection mechanism and the ambient sensor of the present utility model;

[0032] Figure 4 It is a schematic diagram of the installation structure of the installation block and the internal sensor of the present utility model;

[0033] Figure 5 It is a schematic diagram of the installation structure of the refrigerating evaporator pipeline and the installation mechanism inside the direct-cooling refrigerator of the present utility model;

[0034] Figure 6 It is a schematic diagram of the structure of the installation mechanism of the present utility model;

[0035] Figure 7 It is a side view of the structure of the installation mechanism of the present utility model;

[0036] Figure 8 It is an exploded view of the structure of the installation mechanism of the present utility model.

[0037] Among them, the reference numerals are: 1, direct-cooling refrigerator; 2, ambient sensor; 3, defrosting sensor; 4, internal sensor; 100, refrigerating chamber; 200, freezing chamber; 20, protection mechanism; 10, installation mechanism; 30, installation block; 201, rotating shaft; 202, protection housing; 203, protection top cover; 204, installation straight plate; 205, placement groove; 206, avoidance groove; 207, rotating protrusion; 101, connecting piece; 102, extension part; 103, arc-shaped clamping plate; 104, groove; 105, connecting part; 106, lifting slide plate; 107, connecting rod; 108, chute; 109, spring. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] In the description of the present utility model, it should be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0040] As Figures 1 to 8 shown, a back icing monitoring mechanism of a direct-cooling refrigerator includes:

[0041] Direct-cooling refrigerator 1, the direct-cooling refrigerator 1 includes a refrigerating chamber 100 and a freezing chamber 200 arranged below the refrigerating chamber 100;

[0042] Ambient sensor 2, the ambient sensor 2 is used to monitor the ambient temperature where the direct-cooling refrigerator 1 is located in real time. A protection mechanism 20 is provided on the top of the cabinet of the direct-cooling refrigerator 1, and the ambient sensor 2 is arranged inside the protection mechanism 20;

[0043] Defrosting sensor 3, the defrosting sensor 3 is used to sense the surface temperature of the evaporator, and thus can judge the icing condition in the refrigerating chamber 100; wherein, an installation mechanism 10 is provided on the refrigerating evaporator pipeline inside the direct-cooling refrigerator 1, and the defrosting sensor 3 is arranged inside the installation mechanism 10;

[0044] Internal sensor 4, the internal sensor 4 can sense the temperature in the refrigerating chamber 100 to achieve precise monitoring of the temperature in the refrigerating chamber 100; wherein, an installation groove is provided in the liner of the refrigerating chamber 100, an installation block 30 is hermetically arranged in the installation groove, and the internal sensor 4 is arranged at one end of the installation block 30 located inside the installation groove; a buckle groove is formed on one side of the installation block 30 away from the internal sensor 4; the setting of the buckle groove is to facilitate the removal of the installation block 30 from the installation groove;

[0045] Controller, the controller is arranged on the direct-cooling refrigerator 1, and is used to control the ambient sensor 2, the defrosting sensor 3 and the internal sensor 4, and can visually display the real-time information of the ambient sensor 2, the defrosting sensor 3 and the internal sensor 4;

[0046] Among them, during the actual use process, by monitoring the number of times the user opens the door and the usage time, and monitoring the temperature of the defrosting sensor 3, the start and stop of the compressor can be adjusted, the shutdown defrosting time can be extended, and the possible back icing condition can be eliminated;

[0047] In addition, during actual operation, the controller can set a program for judging the frost blockage on the back of the refrigerating chamber 100. When the defrosting sensor 3 monitors that the evaporator temperature rises to a certain temperature and the compressor runs continuously for a certain time, it is determined that the back frosting is serious, and automatic shutdown and defrosting are realized;

[0048] By the ambient sensor 2 and the internal sensor 4, the internal temperature of the refrigerating chamber 100 is monitored in real time, so that the temperature in the refrigerating chamber 100 can be precisely controlled;

[0049] Among them, the ambient sensor 2, the defrosting sensor 3 and the internal sensor 4 are all temperature sensors.

[0050] Please refer to Figures 2 to 3, the protection mechanism 20 includes a rotating shaft 201 and a protection housing 202 disposed in front of the rotating shaft 201. One end of the rotating shaft 201 is rotatably installed on the top of the cabinet shell of the direct-cooling refrigerator 1, and a protection top cover 203 is rotatably installed at the other end of the rotating shaft 201. The bottom of the protection top cover 203 is sealingly connected to the top of the protection housing 202;

[0051] The protection housing 202 is disposed on the top of the cabinet shell of the direct-cooling refrigerator 1;

[0052] An installation straight plate 204 is disposed at the lower end outside the rotating shaft 201. A placement groove 205 is formed at one end of the top of the installation straight plate 204 away from the rotating shaft 201, and the ambient sensor 2 is located in the placement groove 205;

[0053] An avoidance groove 206 matching the installation straight plate 204 is formed at the bottom of the protection housing 202;

[0054] A rotating protrusion 207 is integrally formed at one end of the installation straight plate 204 away from the placement groove 205;

[0055] The protection housing 202 is used for protecting the ambient sensor 2;

[0056] The rotating shaft 201 and the installation straight plate 204 are provided. The installation straight plate 204 can rotate around the rotating shaft 201, so that the ambient sensor 2 can be conveniently removed from the protection housing 202.

[0057] Please refer to Figures 5 to 8 , the installation mechanism 10 includes a connecting member 101 and extension parts 102 vertically installed at both ends of the connecting member 101. The other ends of the extension parts 102 are fixedly installed with arc-shaped clamping plates 103, and the inner surfaces of the arc-shaped clamping plates 103 are attached to the refrigerating evaporator pipeline inside the direct-cooling refrigerator 1;

[0058] A groove 104 is formed on the inner surface of the arc-shaped clamping plate 103, and the defrosting sensor 3 is installed in the groove 104, so that the defrosting sensor 3 is closely attached to the refrigerating evaporator pipeline inside the direct-cooling refrigerator 1, thereby monitoring the refrigerating evaporator pipeline inside the direct-cooling refrigerator 1;

[0059] The connecting member 101 includes two parallel connecting parts 105 arranged side by side and lifting slide plates 106 slidably disposed at both ends outside the connecting parts 105. The extension parts 102 are fixedly connected to the lifting slide plates 106;

[0060] A connecting rod 107 is fixedly connected between the two connecting parts 105;

[0061] A chute 108 matching the connecting part 105 is formed on the lifting slide plate 106;

[0062] Springs 109 are connected to both ends of the connecting part 105, and the other ends of the springs 109 are connected in the chute 108;

[0063] During actual use, the installation process of the installation mechanism 10 is as follows: two arc-shaped clamping plates 103 are sleeved on two adjacent pipelines on the refrigeration evaporator pipeline. The two arc-shaped clamping plates 103 are tightly attached to the surface of the pipeline under the action of the spring 109; a groove 104 is opened inside the arc-shaped clamping plate 103, and a defrost sensor 3 is arranged inside 104. The defrost sensor 3 is tightly attached to the refrigeration evaporator pipeline, so that it can sense the surface temperature of the evaporator, and then the ice condition in the cold storage room 100 can be judged according to the surface temperature of the evaporator.

[0064] In the utility model, the evaporator temperature is monitored and controlled by the defrost sensor 3, and the temperature inside the direct cooling refrigerator 1 is controlled in cooperation with the internal sensor 4 while judging the coldest point temperature of the evaporator, so as to effectively control the start and stop cycle and effectively eliminate the problem of ice formation on the back of the cold storage room 100 after normal refrigeration.

[0065] The utility model provides an ice monitoring mechanism for the back of a direct cooling refrigerator, which adopts three temperature sensors, namely an environment sensor, a defrost sensor and an internal sensor, and the three temperature sensors are arranged on the top of the box shell of the direct cooling refrigerator, on the evaporator pipeline inside the direct cooling refrigerator and in the box liner of the cold storage room of the direct cooling refrigerator, so as to realize multi-directional and real-time monitoring of the internal temperature of the direct cooling refrigerator and the ambient temperature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A direct cooling refrigerator back icing monitoring mechanism, characterized in that: The direct cooling refrigerator comprises a direct cooling refrigerator (1), an environmental sensor (2), a defrosting sensor (3) and an internal sensor (4); the direct cooling refrigerator (1) comprises a refrigerating chamber (100) and a freezing chamber (200) arranged below the refrigerating chamber (100); A protective mechanism (20) is provided on the top of the box shell of the direct cooling refrigerator (1), and the environmental sensor (2) is arranged in the protective mechanism (20); A mounting mechanism (10) is provided on the refrigeration evaporator pipeline inside the direct cooling refrigerator (1), and the defrost sensor (3) is arranged inside the mounting mechanism (10); The refrigerating chamber (100) is provided with a mounting groove in the box casing, a mounting block (30) is sealed in the mounting groove, and the internal sensor (4) is arranged on one end of the mounting block (30) located in the mounting groove.

2. A direct cooling refrigerator back icing monitoring mechanism according to claim 1, characterized in that: The environmental sensor (2), the defrost sensor (3) and the internal sensor (4) are all temperature sensors.

3. The back icing monitoring mechanism of a direct cooling refrigerator according to claim 1, characterized in that: A buckle groove is formed on a side of the mounting block (30) away from the internal sensor (4).

4. The direct cooling refrigerator back icing monitoring mechanism according to claim 1, characterized in that: The protection mechanism (20) comprises a rotating shaft (201) and a protection shell (202) arranged in front of the rotating shaft (201); one end of the rotating shaft (201) is rotatably mounted on the top of the box shell of the direct cooling refrigerator (1); the other end of the rotating shaft (201) is rotatably mounted with a protection top cover (203); the bottom of the protection top cover (203) is sealedly connected to the top of the protection shell (202); The protective shell (202) is arranged on the top of the box shell of the direct cooling refrigerator (1); A mounting straight plate (204) is provided at the lower end of the outside of the rotating shaft (201), a placement groove (205) is provided at the top end of the mounting straight plate (204) away from the rotating shaft (201), and the environmental sensor (2) is located in the placement groove (205); The bottom of the protective shell (202) is provided with an avoidance groove (206) that matches the installation straight plate (204).

5. The back icing monitoring mechanism of a direct cooling refrigerator according to claim 4, characterized in that: A rotating protrusion (207) is integrally formed on one end of the installation straight plate (204) away from the placement groove (205).

6. A direct cooling refrigerator back icing monitoring mechanism according to claim 1, characterized in that: The mounting mechanism (10) comprises a connecting member (101) and extensions (102) vertically mounted at both ends of the connecting member (101); an arc-shaped clamping plate (103) is fixedly mounted at the other end of the extension (102); and the inner surface of the arc-shaped clamping plate (103) is attached to the refrigeration evaporator pipeline inside the direct cooling refrigerator (1); The inner surface of the arc-shaped clamping plate (103) is provided with a groove (104), and the defrost sensor (3) is installed in the groove (104).

7. A direct cooling refrigerator back icing monitoring mechanism according to claim 6, characterized in that: The connecting member (101) comprises two connecting parts (105) arranged in parallel and parallel to each other and lifting slide plates (106) slidably arranged at two ends outside the connecting parts (105), and the extending part (102) is fixedly connected to the lifting slide plates (106); A connecting rod (107) is fixedly connected between the two connecting parts (105); The lifting slide plate (106) is provided with a slide groove (108) which matches with the connecting portion (105); Both ends of the connecting portion (105) are connected to a spring (109), and the other end of the spring (109) is connected to the slide groove (108).

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