CN204255896U - The condensation monitoring device of refrigeration plant - Google Patents

Abstract

The utility model relates to a condensation monitoring device for refrigeration equipment, comprising: a condensation collection unit and a condensation sensor; the condensation collection unit is in the shape of a funnel with a large top and a small bottom; the condensation sensor includes: a resistor detection circuit and two sensor probes, the probing ends of the two sensor probes are relatively arranged in the accommodating space at the funnel neck of the condensation collection unit, and the probing ends of the two sensor probes are mutually different In contact, the terminals of the two sensor probes are respectively connected to the two input terminals of the resistance detection circuit, and the output terminals of the resistance detection circuit are connected to the heating control unit of the refrigeration equipment. The condensation monitoring device of the refrigeration equipment of the utility model can effectively monitor whether the bead-like condensation is generated, and can continuously monitor the condensation, and has the advantage of low implementation cost.

Description

Condensation monitoring device for refrigeration equipment

technical field

The utility model relates to the technical field of refrigeration equipment, in particular to a condensation monitoring device for refrigeration equipment.

Background technique

When refrigeration equipment such as refrigerators, freezers, and air conditioners operate in a high-temperature and high-humidity environment, the water vapor in the air will condense on the outer surface of the equipment due to the low temperature of the outer surface of the refrigeration equipment (such as the box shell and glass door, etc.). When the relative humidity of the air exceeds 80%, bead-shaped condensation may appear on the outer surface of the refrigeration equipment.

Under certain temperature conditions, the higher the relative humidity of the air, the closer the condensation temperature is to the ambient air temperature, that is, the closer the ambient temperature is to the dew point temperature, the easier condensation will occur. If condensation is to be prevented, it is usually possible to make the surface temperature of the part of the refrigeration equipment where condensation is not expected to be higher than the ambient temperature. That is to say, heating is usually used to eliminate condensation.

However, for refrigeration equipment, heating and cooling itself are contradictory; if the heating is excessive, it will not only cause energy consumption, but also make the cooling effect of the refrigeration equipment worse; and if the heating is not timely, condensation will occur. Dew gathers and drips on the ground.

In order to make the heating of refrigeration equipment more reasonable, some refrigeration equipment manufacturers use condensation sensors to monitor whether condensation occurs, and when the condensation sensor detects condensation, trigger the refrigeration equipment to perform heating operations to eliminate condensation.

The inventor found in the process of realizing the utility model that: the existing condensation sensor is a capacitance-based condensation sensor, and the monitoring principle of the condensation sensor is: before and after the condensation occurs, the effective The dielectric constant is obviously different, and the capacitance is very different. According to the difference in capacitance, it can be monitored whether condensation has occurred. However, in practical applications, condensation can be divided into mist condensation and bead condensation. People usually allow the generation and existence of mist condensation, but the existing condensation sensors cannot effectively distinguish whether there is bead condensation or not. Condensation. In addition, if the condensation sensor has condensation attached to its surface, the monitoring operation cannot be performed again, and if the condensation sensor is heated to remove the condensation attached to its surface, it can quickly enter the condensation again. In the case of the monitored state, the heating of the condensation sensor will not only affect its life, but also affect its monitoring accuracy. Also, the cost of the condensation sensor is relatively high.

In view of the problems existing in the existing refrigerating equipment, the inventor actively researches and innovates on the basis of years of rich practical experience and professional knowledge engaged in the design and manufacture of this type of product, and cooperates with the application of academic theories, in order to create a new type of refrigeration equipment. The display cabinet box with heating function and refrigeration function at the same time makes it more practical. Through continuous research and design, and through repeated trial samples and improvements, the utility model with practical value is finally created.

Utility model content

The purpose of this utility model is to provide a condensation monitoring device for refrigeration equipment. The technical problems to be solved include: being able to effectively monitor whether bead-shaped condensation is generated, and continuously monitoring condensation; low pros.

The purpose of this utility model and the solution to its technical problems can be realized by adopting the following technical solutions.

According to the utility model, a condensation monitoring device for refrigeration equipment includes: a condensation collection unit and a condensation sensor; the condensation collection unit is in the shape of a funnel with a large top and a small bottom; the condensation sensor includes: a resistor detection circuit and two sensor probes, the probing ends of the two sensor probes are relatively arranged in the accommodating space at the funnel neck of the condensation collection unit, and the probing ends of the two sensor probes are mutually different In contact, the terminals of the two sensor probes are respectively connected to the two input terminals of the resistance detection circuit, and the output terminals of the resistance detection circuit are connected to the heating control unit of the refrigeration equipment.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein the probing ends of the two sensor probes are respectively inserted into the capacity of the neck of the funnel by the outer wall of the neck of the funnel of the condensation collection unit. In the space, and the terminals of the two sensor probes are located outside the neck of the funnel of the condensation collection unit.

Preferably, in the aforementioned condensation monitoring device for refrigeration equipment, at least one of the two sensor probes can be inserted into the accommodating space at the neck of the funnel of the condensation collection unit at an adjustable depth.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein the device further includes: a flow guide unit, one end of the flow guidance unit is located at the neck of the funnel of the condensation collection unit, and the other end is located at the collector of the refrigeration equipment. At the water unit, the condensation collected by the condensation collection unit flows into the water collection unit through the flow guide unit.

Preferably, in the aforementioned condensation monitoring device for refrigeration equipment, the flow guide unit includes: a flow guide tube.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein the water collection unit is arranged at the compressor of the refrigeration equipment.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein the refrigeration equipment includes: a refrigerator, a freezer and an air conditioner.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein when the refrigeration equipment is a refrigerator, the condensation collection unit is arranged on the lower side of the refrigerator door; when the refrigeration equipment is a freezer, the The condensation collecting unit is arranged on the lower side of the door body of the freezer.

Preferably, the aforementioned condensation monitoring device for refrigeration equipment, wherein the upper end surface of the condensation collection unit protrudes from the outer surface of the refrigerator door; the upper end surface of the condensation collection unit protrudes from the outer surface of the freezer door .

With the above-mentioned technical solution, the condensation monitoring device of the refrigeration equipment of the present invention has at least the following advantages and beneficial effects: The present utility model arranges the sensor probes at the neck of the funnel of the condensation collection unit relatively and without contact. In this way, when the bead-shaped condensation in the condensation collection unit flows through the neck of the funnel and drops on the two sensor probes, the resistance between the two sensor probes will be larger. When the resistance detection circuit detects the change in resistance between the two sensor probes, the heating control unit can be triggered to perform the corresponding heating control operation by triggering the heating control unit connected to it; thus the condensation monitoring of the utility model The state can effectively distinguish the beaded condensation, and can avoid the phenomenon of the condensation dripping on the ground; the beaded condensation dripping on the two sensor probes will continue to drip downward due to gravity, so that the condensation The dew monitoring device can continue to monitor the dew, so that the dew monitoring device of the present invention can realize continuous monitoring of dew; the structure of the sensor probe and the resistance detection circuit used in the present invention is very simple and the price of components Low, so the realization cost of the condensation monitoring device of the utility model is low, and is suitable for mass production.

To sum up, the condensation monitoring device of the refrigeration equipment of the present invention can effectively monitor whether bead-shaped condensation is generated, and can continuously monitor condensation, and has the advantage of low implementation cost. Therefore, technically There is remarkable progress and obvious positive technical effect, which is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the contents of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings in the description, and the detailed description is as follows.

Description of drawings

Fig. 1 is the schematic diagram of the dew monitoring device of the refrigeration equipment of the present invention;

Fig. 2 is a left sectional view of a refrigerator provided with a condensation monitoring device of the present invention.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the following is a detailed description of the condensation monitoring device for refrigeration equipment proposed according to the utility model in conjunction with the accompanying drawings 1-2 and the preferred embodiments. Embodiments, structures and features are described in detail below.

Embodiment 1. A condensation monitoring device for refrigeration equipment.

In Fig. 1, the condensation monitoring device of the refrigeration equipment of the present invention mainly includes: a condensation collecting unit 1 and a condensation sensor; wherein the condensation sensor includes: two sensor probes (that is, the sensor probe 2 in Fig. 1 And sensor probe 3) and resistance detection circuit 4. Optionally, the condensation monitoring device of the present invention may further include: a flow guiding unit (not shown in FIG. 1 ).

The condensation collection unit 1 is mainly used to collect condensation on the outer surface of the refrigeration equipment, that is, when the condensation on the outer surface of the refrigeration equipment flows downward due to gravity, it will drop into the accommodation space formed by the condensation collection unit middle.

The shape of the condensation collection unit 1 can be a funnel shape with a large top and a small bottom, that is, the condensation collection unit 1 includes a bucket part forming a larger accommodation space and a neck forming a smaller accommodation space, and the condensation will form when it enters the condensation area. After entering the bucket of the dew collection unit 1, it enters the neck of the dew collection unit 1. Based on this, the condensation collecting unit 1 of the present invention can also be called a condensation collecting funnel.

The material of the condensation collecting unit 1 can be plastic or resin.

Both the sensor probe 2 and the sensor probe 3 include a probing end (also called the probe front end) and a wiring end (also called the probe rear end). The probe end of the sensor probe 2 and the probe end of the sensor probe 3 are relatively arranged in the accommodating space of the funnel neck of the condensation collection unit 1, and the probe end of the sensor probe 2 and the sensor probe 3 The probing ends of the sensors do not touch each other, that is, the sensor probe 2 and the sensor probe 3 are relatively inserted into the funnel neck of the condensation collection unit 1, and the probing end of the sensor probe 2 and the probing end of the sensor probe 3 There is a predetermined distance between them. The predetermined distance can be set according to actual needs, for example, it can be set according to the size of the bead-shaped condensation, so as to ensure that when the bead-shaped condensation enters the accommodating space at the neck position of the condensation collection unit 1, it can touch the sensor probe at the same time 2 probe end and sensor probe 3 probe end. The probing part of the sensor probe 2 and the probing part of the sensor probe 3 can be located on the same straight line (that is, the sensor probe 2 and the sensor probe 3 are located on the same straight line), for example, in the condensation collection unit 1 When the neck is cylindrical, the penetrating parts of the two can be located on the diameter of the cylindrical cross section; of course, the penetrating parts of the two can also be arranged parallel to each other or at a certain angle. The terminal of the sensor probe 2 is connected to one input terminal of the resistance detection circuit 4, the terminal of the sensor probe 3 is connected to the other input terminal of the resistance detection circuit 4, and the output terminal of the resistance detection circuit 4 is connected to the heating of the refrigeration equipment. A control unit (not shown in Figure 1) is connected. When the probe ends of the sensor probe 2 and the sensor probe 3 are respectively inserted into the capacity space at the funnel neck position of the condensation collection unit 1 by the outer wall of the funnel neck position, the connection terminal of the sensor probe 2 The connection terminal with the sensor probe 3 may be located outside the neck of the funnel of the condensation collection unit 1 .

It should be noted that at least one of the sensor probes 2 and 3 is an adjustable sensor probe, that is, the sensor probe is inserted into the accommodating space at the neck of the funnel of the condensation collection unit 1 The depth is adjustable, that is to say, the distance between the probing end of the sensor probe 2 and the probing end of the sensor probe 3 is adjustable. Typically, only one sensor probe is an adjustable sensor probe. By adjusting the distance between the probe end of the sensor probe 2 and the probe end of the sensor probe 3, the monitoring accuracy of the condensation sensor of the present invention can be improved.

The resistance detection circuit in the utility model can adopt the existing resistance detection circuit, as long as the resistance detection circuit can detect that the resistance between the sensor probe 2 and the sensor probe 3 changes from infinite to tens of kiloohms or other resistance When the value is set, the corresponding signal can be transmitted to the heating control unit of the refrigeration equipment.

The diversion unit is mainly used to divert the condensation collected by the condensation collection unit 1 to a water collection unit (such as a water receiving tray) of the refrigeration equipment. One end of the diversion unit is set at the neck of the funnel of the condensation collection unit 1, such as being sleeved on the outside of the funnel neck, and the other end of the diversion unit is located at the water collection unit of the refrigeration equipment, such as at the water receiving tray. directly above, so that condensation can drip into the drip tray.

The diversion unit can be specifically a diversion pipe (such as a plastic pipe), or a diversion groove, as long as the condensation in the condensation collection unit 1 can be introduced into the water collection unit of the refrigeration equipment.

The water collection unit of the refrigeration equipment is usually arranged at the compressor of the refrigeration equipment, so that the water in the water collection unit can be volatilized as soon as possible under the action of the heat generated by the compressor.

The refrigerating equipment in the utility model can be specifically a refrigerator, a freezer, or an air conditioner. In the case that the refrigeration equipment is a refrigerator, the condensation collection unit 1 is usually arranged on the lower side of the refrigerator door, and the upper end surface of the condensation collection unit 1 can protrude from the outer surface of the refrigerator door, so that The condensation can enter the condensation collection unit 1 smoothly. In the case that the refrigeration equipment is a freezer, the condensation collection unit 1 is usually arranged on the lower side of the freezer door, and the upper end surface of the condensation collection unit 1 can protrude from the outer surface of the freezer door, so that The condensation can enter the condensation collection unit 1 smoothly.

Embodiment 2, a condensation monitoring device for a refrigerator. A specific example of a condensation detection device installed in a refrigerator is shown in FIG. 2 . Fig. 2 is a left sectional view of a refrigerator equipped with a condensation monitoring device of the present invention.

In FIG. 2 , the condensation collecting unit 1 is arranged on the lower side of the upper door of the refrigerator, and the upper end surface of the bucket portion of the condensation collecting unit 1 protrudes from the outer surface of the upper door of the refrigerator. The condensation collected by the condensation collection unit 1 flows into the water receiving tray of the refrigerator through the guide pipe 5 , and the water receiving tray is arranged at the compressor of the refrigerator so as to be volatilized as quickly as possible by the heat generated by the compressor. It can be seen from Figure 2 that the two sensors are respectively arranged at the neck of the funnel of the condensation collection unit 1, and the resistance detection circuit is not shown in Figure 2, the location of the resistance detection circuit can be determined according to the specific structure of the refrigerator , the utility model does not limit the specific setting position of the resistance detection circuit.

The above descriptions are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the technology of the utility model. Any skilled person familiar with this profession can use the technical content disclosed above to make some changes or modify equivalent embodiments without departing from the technical solution of the utility model within the scope of the technical solution of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (9)

1. A condensation monitoring device for refrigeration equipment, comprising: a condensation collection unit and a condensation sensor; The condensation collecting unit is in the shape of a funnel with a large top and a small bottom; The condensation sensor includes: a resistance detection circuit and two sensor probes, the probe ends of the two sensor probes are relatively arranged in the accommodation space at the neck of the funnel of the condensation collection unit, and the two sensors The probing ends of the probes are not in contact with each other, the terminals of the two sensor probes are respectively connected to the two input ends of the resistance detection circuit, and the output end of the resistance detection circuit is connected to the heating control unit of the refrigeration equipment. 2. The condensation monitoring device for refrigeration equipment according to claim 1, wherein the probe ends of the two sensor probes are respectively inserted into the funnel by the outer wall of the neck of the funnel of the condensation collection unit The capacitance space at the neck position, and the terminals of the two sensor probes are located outside the neck position of the funnel of the condensation collection unit. 3. The condensation monitoring device for refrigeration equipment according to claim 2, wherein at least one of the two sensor probes is inserted into the accommodating space at the neck of the funnel of the condensation collection unit The depth inside is adjustable. 4. The condensation monitoring device for refrigeration equipment according to claim 1, characterized in that the device further comprises: a flow guide unit, one end of the flow guide unit is located at the neck of the funnel of the condensation collection unit, and the other One end is located at the water collection unit of the refrigeration equipment, and the condensation collected by the condensation collection unit flows into the water collection unit through the flow guide unit. 5 . The condensation monitoring device for refrigeration equipment according to claim 4 , wherein the flow guide unit comprises: a flow guide tube. 6 . 6 . The condensation monitoring device for refrigeration equipment according to claim 4 , wherein the water collecting unit is arranged at a compressor of the refrigeration equipment. 7 . 7 . The condensation monitoring device for refrigeration equipment according to any one of claims 1 to 6 , wherein the refrigeration equipment comprises: a refrigerator, a freezer and an air conditioner. 8. The condensation monitoring device for refrigeration equipment according to claim 7, characterized in that: When the refrigeration equipment is a refrigerator, the condensation collecting unit is arranged on the lower side of the door of the refrigerator; When the refrigerating equipment is a freezer, the condensation collecting unit is arranged on the lower side of the door body of the freezer. 9. The condensation monitoring device for refrigeration equipment according to claim 8, characterized in that: The upper end surface of the condensation collecting unit protrudes from the outer surface of the refrigerator door; The upper end surface of the condensation collecting unit protrudes from the outer surface of the freezer door.