Detection device based on refrigerated container power supply system

Abstract

The utility model discloses a power supply system detection device based on a refrigerated container, and relates to the technical field of power supply detection, and the device comprises a power supply detection assembly connected in series with three-phase power, a power supply segment of the refrigerated container is connected with the three-phase power, and the three-phase power is connected with a leakage protector. The power supply detection assembly is composed of a first voltmeter, a second voltmeter, a third voltmeter and a push switch which are integrated into a whole, any live wire is connected with a neutral wire through a wire connected with the trigger end of the push switch in series, and the live wire is communicated with the neutral wire connected with the indicating lamp module in series by pressing the push switch to simulate the electric leakage condition. The power supply detection assembly has the technical advantages that the voltmeter and the push switch are integrated on the control panel of the power supply detection assembly in a unified mode, the voltage condition of each path can be visually read, simulation electric leakage is caused by pressing the push switch under the condition that a load is not connected, and then whether an electric leakage protector is normal or not can be judged; the indicating lamp and the push switch are integrated in the same circular ring, and whether the leakage protector is normal or not is visually judged through the change of the indicating lamp by pressing the push switch.

Description

Technical Field

[0001] The present application relates to the technical field of power supply detection, and in particular to a detection device based on a refrigerated container power supply system. Background Art

[0002] Refrigerated containers, as a specialized piece of logistics equipment, are widely used worldwide for the transportation of fresh food, pharmaceuticals, and other temperature-sensitive goods. Their core function is to maintain a constant low temperature inside the container to ensure the freshness and safety of goods during long-distance transportation. However, achieving this function requires a continuous and stable power supply, which constitutes the key background technology for the power supply needs of refrigerated containers. Refrigeration Demand and Power Dependence Refrigerated containers are equipped with a refrigeration system. Through a refrigeration cycle consisting of components such as a compressor, condenser, and evaporator, the temperature inside the container is reduced to a set target, typically between -20°C and 10°C, depending on the type of goods being transported and the preservation requirements. This refrigeration process consumes a large amount of electricity, especially when the ambient temperature is high or the cargo load is large. The load on the refrigeration system increases significantly, placing higher demands on the stability and capacity of the power supply.

[0003] Traditional refrigerated container power supplies mostly rely on three-phase AC power. This power supply method can provide sufficient power to meet the operating requirements of the refrigeration system and other ancillary equipment. To ensure the safety and efficiency of the power system, circuit breakers have become indispensable components. Their function is to detect overload, short circuit or leakage in the circuit and cut off the power supply in time. However, monitoring its normal working status is a technical challenge. As the use time increases, the circuit breaker may malfunction due to wear, aging or external interference, resulting in the failure of the protection function, which in turn affects the stable operation of the entire power system. In addition, in a three-phase power circuit, once a circuit break or poor contact occurs when the load is connected, even if the other two phases can still supply power, it may lead to insufficient voltage supply, affecting the normal operation of the refrigeration system and even damaging the cargo in the container. Therefore, how to ensure the reliable operation of the refrigerated container power system and container power sockets in a timely manner has become a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0004] This device provides a detection device based on the power supply system of a refrigerated container. The specific implementation is as follows:

[0005] A detection device based on a refrigerated container power supply system, comprising:

[0006] The power supply section of the refrigerated container is connected to the container power socket through three-phase electricity, and the three-phase electricity is connected to the leakage protector;

[0007] The power supply detection component connected in series to the three-phase electricity consists of an integrated first voltmeter, a second voltmeter, a third voltmeter and a push switch. The first voltmeter, the second voltmeter and the third voltmeter are respectively connected between any two live wires in the three-phase electricity. The neutral wire of the three-phase electricity is grounded, and any live wire and the neutral wire are connected in series through a wire with a trigger end of a push switch. By pressing the push switch, the live wire is connected to the neutral wire of the series indicator light module to simulate a leakage situation, triggering the leakage protector to test whether it is working normally.

[0008] Based on the above technical solution, by integrating the voltmeter and push switch on the control panel of the power supply detection component, the voltage conditions of each line can be read intuitively. The integration of the voltmeter enables staff to read the actual voltage of each power supply line of the refrigerated container at any time. The real-time voltage data display can help quickly locate the source of the problem and take targeted maintenance measures to avoid the decline in refrigeration system efficiency due to insufficient voltage supply; the leakage protector status detection is carried out by setting a push switch on the control panel to simulate a circuit breaker without an external load, so as to verify the working status of the leakage protector.

[0009] Preferably, it also includes an indicator light electrically connected in series to the end of the leakage protector, which is integrated with the push switch on the control panel of the power supply detection component.

[0010] Based on the above technical solution, by integrating the indicator light and the push switch in the same ring, by pressing the push switch, it is possible to intuitively judge whether the leakage protector is operating normally through the changes in the indicator light.

[0011] Preferably, it further includes a mounting bracket and a drawer shell, a closed storage compartment for accommodating the power supply detection component is formed between the two, and an open groove is provided on the side of the storage compartment facing the power supply detection component control panel.

[0012] Preferably, limiting slides are extended from the upper and lower parts of the accommodating bin, the limiting slides are vertically slidably connected to the fixed rails, and a clamping bolt for positioning is provided between the two.

[0013] Based on the above technical solution, a transparent panel that can be flipped up is provided at the open slot, which can usually prevent dust and accidental touch.

[0014] Preferably, the accommodating bin is laterally conductive on one side, and the other side is provided with a first grille plate for heat dissipation and dust prevention; the accommodating bin is provided with a pull-out shell sliding along its conductive direction, and a second grille plate is provided at the corresponding position of the pull-out shell and the first grille plate.

[0015] Preferably, sliding plates are added on both sides of the second grid plate to form a C-shaped structure, a limiting groove is opened at the end of the accommodating bin along its rolling direction, the sliding plate is slidably connected to the limiting groove, and a locking structure is provided between the two.

[0016] Preferably, a waist-shaped hole is opened on the limiting groove along its layout direction, and a fastening knob is installed on the sliding plate through the positioning hole, and the fastening knob is inserted into the waist-shaped hole.

[0017] Based on the above technical solution, the power supply detection component can be removed from the storage compartment by sliding the pull-out shell, and the tightening knob is a conventional locking structure. After it is tightened, there will be no relative sliding between the pull-out shell and the mounting bracket, thereby preventing the power supply detection component from being accidentally removed.

[0018] Preferably, the first grid plate and the second grid plate are both provided with long strip-shaped heat dissipation holes.

[0019] Based on the above technical solution, the heat dissipation performance of the power supply detection component during operation can be improved through the long strip heat dissipation holes.

[0020] In summary, this application has the following beneficial technical effects:

[0021] 1. This utility model integrates a voltmeter and a push-button switch on the control panel of the power supply detection component, allowing intuitive reading of the voltage conditions of each circuit. In addition, by pressing the push-button switch when no load is connected, a simulated leakage condition can be created to determine whether the leakage protector is functioning properly.

[0022] 2. In this utility model, the indicator light and the push switch are integrated into the same circular ring. By pressing the push switch, the user can intuitively judge whether the leakage protector is operating normally through the change of the indicator light;

[0023] 3. The utility model has a simple structure. By adding a mounting bracket and a pull-out shell that can be easily opened and closed, the power supply detection component can be installed in a built-in manner, which can be dust-proof and the control panel can be embedded to prevent misoperation caused by the exposed protrusion of the control button. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the electrical structure principle diagram of the utility model;

[0025] Figure 2 It is a structural diagram of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model after the drawer shell slides out;

[0027] Figure 4 It is a schematic diagram of the explosion structure in the utility model;

[0028] Figure 5 This utility model Figure 3 Schematic diagram of the right view structure;

[0029] Figure 6 It is a structural schematic diagram of the mounting bracket in the utility model.

[0030] Description of reference numerals:

[0031] 1. Power supply detection component, 2. Refrigerated container, 3. Leakage protector, 4. Three-phase power, 5. Fixing rail, 6. Mounting bracket, 7. Drawer shell, 8. Fastening knob, 9. Indicator light,

[0032] 101. First voltmeter, 102. Second voltmeter, 103. Third voltmeter, 104. Push switch, 601. Accommodating compartment, 602. First grid plate, 603. Waist-shaped hole, 604. Limiting slide plate, 605. Limiting slot, 606. Open slot, 701. Second grid plate, 702. Sliding plate, 703. Positioning hole. DETAILED DESCRIPTION

[0033] The following describes the specific implementation of the utility model with reference to the accompanying drawings and embodiments:

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present utility model. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose that can be achieved by the present utility model.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a detection device for a power supply system of a refrigerated container.

[0038] Example 1

[0039] Reference Figures 1 to 2This embodiment discloses a detection device for a refrigerated container power supply system, comprising a power supply detection component 1 connected in series to a three-phase power supply 4 and an indicator light 9 electrically connected in series to the end of a leakage protector 3. The power supply section of the refrigerated container 2 is connected to the three-phase power supply 4, to which the leakage protector 3 is connected. The power supply detection component 1 is composed of a first voltmeter 101, a second voltmeter 102, a third voltmeter 103, and a push switch 104, which are integrated into one body. The first voltmeter 101, the second voltmeter 102, and the third voltmeter 103 are respectively connected between any two live wires of the three-phase power supply 4. The neutral wire of the three-phase power supply 4 is grounded, and any live wire and the neutral wire are connected in series via a wire connected in series with a trigger end of a push switch 104. By pressing the push switch 104, the live wire is connected to the neutral wire of the series indicator light, simulating a leakage condition, triggering the leakage protector 3 to operate to test whether it is working properly. In this structure, the indicator light 9 and the push switch 104 are integrated into the control panel of the power supply detection component 1.

[0040] The specific implementation process is as follows: when the refrigerated container 2 is not in operation, the push switch 104 is pressed, so that the live wire and the neutral wire are connected to the ground, causing a circuit breaker. At this time, if the leakage protector 3 is operating normally, the indicator light 9 is off; if the leakage protector 3 is not operating normally, the indicator light 9 is always red, and the staff should replace the leakage protector 3 in time; when the refrigerated container 2 is in operation, the readings of the first voltmeter 101, the second voltmeter 102 and the third voltmeter 103 are always observed to prevent the live wire from being broken in the three-phase power 4.

[0041] Example 2

[0042] Reference Figures 1 to 6 Based on the above embodiment, this embodiment further discloses a refrigerated container power supply system detection device, which also includes a mounting bracket 6 and a drawer shell 7, between which a closed storage compartment 601 for accommodating the power supply detection component 1 is formed. The storage compartment 601 is provided with an open groove 606 on the side facing the control panel of the power supply detection component 1.

[0043] Limiting slides 604 are extended from the upper and lower parts of the accommodating bin 601. The limiting slides 604 are vertically slidably connected to the fixed rails 5 on the refrigerated container, and a clamping bolt for positioning is provided between the two. The accommodating bin 601 is lateral conductive on one side, and the other side is provided with a first grille plate 602 for heat dissipation and dust prevention. The accommodating bin 601 is provided with a drawer shell 7 sliding along its conductive direction, and the drawer shell 7 is provided with a second grille plate 701 at the corresponding position of the first grille plate 602. In this structure, a C-shaped structure is formed on both sides of the second grille plate 701 by adding sliding plates 702. A limiting groove 605 is provided at the end of the accommodating bin 601 along its rolling direction. The sliding plate 702 is slidably connected to the limiting groove 605, and a locking structure is provided between the two. The first grille plate 602 and the second grille plate 701 are both provided with long strip-shaped heat dissipation holes at the ends.

[0044] A waist-shaped hole 603 is opened on the limiting groove 605 along its layout direction, and a fastening knob 8 is installed on the sliding plate 702 through the positioning hole 703 , and the fastening knob 8 is inserted into the waist-shaped hole 603 .

[0045] Example 3

[0046] Reference Figure 1 Based on Example 1, this embodiment also discloses a detection device for a power supply system based on a refrigerated container. The back of the power supply detection component 1 is set to a magnetic material. When in use, it is magnetically attracted to the refrigerated container to measure whether the power socket is normal. It is removed when not in use, thereby improving its convenience and effectively avoiding the problem of dust collection when placed for a long time.

[0047] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A detection device based on a refrigerated container power supply system, wherein the power supply section of the refrigerated container (2) is connected to the container power socket through a three-phase power (4), and a leakage protector (3) is connected to the three-phase power (4), characterized in that: Also includes: A power supply detection component (1) connected in series to a three-phase power supply (4) is composed of a first voltmeter (101), a second voltmeter (102), a third voltmeter (103) and a push switch (104) which are integrated into one body. The first voltmeter (101), the second voltmeter (102) and the third voltmeter (103) are respectively connected between any two live wires in the three-phase power supply (4). The neutral wire of the three-phase power supply (4) is grounded, and any live wire and the neutral wire are connected via a wire connected in series with a trigger end of the push switch (104). By pressing the push switch (104), the live wire is connected to the neutral wire of the serially connected indicator light module to simulate a leakage situation, thereby triggering the leakage protector (3) to operate and test whether it is working normally.

2. A detection device based on a refrigerated container power supply system according to claim 1, characterized in that: It also includes an indicator light (9) electrically connected in series to the end of the leakage protector (3), which is integrated with the push switch (104) on the control panel of the power supply detection component (1).

3. The refrigerated container power supply system detection device according to claim 2, characterized in that: It also includes a mounting bracket (6) and a drawer shell (7), between which a closed storage compartment (601) for accommodating the power supply detection component (1) is formed. The storage compartment (601) is provided with an open slot (606) on a side facing the control panel of the power supply detection component (1).

4. The detection device based on the refrigerated container power supply system according to claim 3, characterized in that: Limiting slides (604) are provided on the upper and lower sides of the accommodating bin (601). The limiting slides (604) are vertically slidably connected to the fixed rails (5), and a clamping bolt for positioning is provided between the two.

5. The detection device based on the refrigerated container power supply system according to claim 4, characterized in that: The accommodating chamber (601) is lateral-conducting on one side, and the other side is provided with a first grid plate (602) for heat dissipation and dust prevention; The accommodating chamber (601) is provided with a drawer shell (7) that slides along its conducting direction, and a second grid plate (701) is provided at a position corresponding to the drawer shell (7) and the first grid plate (602).

6. The detection device based on the refrigerated container power supply system according to claim 5, characterized in that: The second grid plate (701) is provided with sliding plates (702) on both sides to form a C-shaped structure. The end of the accommodating bin (601) is provided with a limiting groove (605) along its rolling direction. The sliding plate (702) is slidably connected to the limiting groove (605), and a locking structure is provided between the two.

7. The detection device based on the refrigerated container power supply system according to claim 6, characterized in that: A waist-shaped hole (603) is provided on the limiting groove (605) along its arrangement direction, and a fastening knob (8) is installed on the sliding plate (702) through the positioning hole (703), and the fastening knob (8) is plugged into the waist-shaped hole (603).

8. The detection device based on the refrigerated container power supply system according to claim 5, characterized in that: The first grid plate (602) and the second grid plate (701) are both provided with long strip-shaped heat dissipation holes at the weekend.

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