Temperature detection device for energy storage cabinet

Abstract

The utility model provides an energy storage cabinet temperature detection device, which comprises a cabinet body, a temperature detection module and a control part, the cabinet body is provided with an air inlet and an air outlet, the air inlet is connected with an air compressor through an air inlet pipe, and the air outlet is used for being connected with an air outlet pipe; the temperature detection module comprises a first temperature sensor, a second temperature sensor and a third temperature sensor, the first temperature sensor is arranged at the air inlet to detect the inlet air temperature, and the second temperature sensor is arranged at the air outlet to detect the outlet air temperature; the third temperature sensor is arranged in the cabinet body to detect the internal temperature of the inner cavity; the control part is electrically connected with the first temperature sensor, the second temperature sensor and the third temperature sensor, and when the third temperature sensor is larger than a preset value, the frequency conversion fan is started to work; and a temperature control instruction is generated according to the temperature difference value between the first temperature sensor and the second temperature sensor to adjust the frequency of the air compressor.

Description

Technical Field

[0001] The utility model belongs to the field of energy equipment, and in particular relates to a temperature detection device for an energy storage cabinet. Background Art

[0002] In recent years, with the increase in my country's energy demand and the rapid development of new energy, energy storage technology has gradually become a hot topic in various fields. As an important device, energy storage cabinets play an important role in the energy field. Energy storage cabinets are devices for storing electrical energy. It uses advanced energy storage technology to store electrical energy when the power supply is sufficient, and release electrical energy when the demand is peak or the power is insufficient. Energy storage cabinets are composed of components such as battery packs, control systems, and input and output interfaces. It has the characteristics of high energy density, fast response and long life, and has become a key component of modern energy systems. Energy storage cabinets can be used in many fields, including new energy power stations, smart microgrids, electric vehicle charging piles, industrial power reserves and household energy storage. First of all, for new energy power stations, energy storage cabinets can effectively solve the intermittent and uncontrollable problems of renewable energy. When the power generated by new energy power generation equipment such as wind turbines or solar panels exceeds the demand, the excess power can be stored in energy storage cabinets for emergency use. Conversely, when the power generated by new energy power generation equipment is insufficient, the energy storage cabinet can quickly release the stored power and provide it to the power system for use to ensure stable power supply.

[0003] Since a large number of electrical equipment are installed inside the energy storage cabinet, these electrical equipment will generate a lot of heat when in use. If the inside of the equipment is in a high temperature state for a long time, it will not only affect the normal operation of the electrical equipment, but also pose a safety hazard. If the heat of the server or other equipment inside the cabinet cannot be dissipated in time, the equipment will trip due to overheating or even burn out. At the same time, the insulation of the server or other equipment will age quickly, reducing the service life and rated current of the server or other equipment. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a temperature detection device for an energy storage cabinet, so that the heat in the cabinet can be dissipated in time.

[0005] To achieve the above purpose, the utility model has the following technical solutions:

[0006] A temperature detection device for an energy storage cabinet, comprising:

[0007] A cabinet body, wherein an air inlet and an air outlet are arranged on the cabinet body, wherein the air inlet is connected to the air compressor through an air inlet pipe, and the air outlet is used to connect to the air outlet pipe;

[0008] The temperature detection module includes a first temperature sensor, a second temperature sensor and a third temperature sensor, wherein the first temperature sensor is arranged at the air inlet to detect the air inlet temperature, the second temperature sensor is arranged at the air outlet to detect the air outlet temperature, and the third temperature sensor is arranged in the cabinet to detect the internal temperature of the inner cavity;

[0009] The control unit is electrically connected to the first temperature sensor, the second temperature sensor and the third temperature sensor. When the temperature of the third temperature sensor is greater than a preset value, the air compressor is started, and a temperature control instruction is generated according to the temperature difference between the first temperature sensor and the second temperature sensor to adjust the frequency of the air compressor.

[0010] In one embodiment, the cross-sectional area of ​​the air inlet is the same as the cross-sectional area of ​​the air outlet.

[0011] In one embodiment, a cooling fan is further included, and the cooling fan is arranged at the air outlet. The control unit controls the rotation speed of the cooling fan to adjust the air volume.

[0012] In one embodiment, a one-way valve is provided on the air outlet pipe.

[0013] In one of the embodiments, the air inlet and the air outlet are arranged opposite to each other and the height of the air inlet is higher than the height of the air outlet, so that the air outlet forms a circulating airflow.

[0014] In one embodiment, the third temperature sensor is a non-contact temperature sensor for measuring the temperature distribution of the temperature field.

[0015] In one embodiment, a movably arranged swing mechanism and a drive motor are provided at the air inlet, and the control unit receives the temperature distribution data of the temperature field of the third temperature sensor, and controls the drive motor to drive the swing mechanism so that the airflow is aligned with the high-temperature intensive area of ​​the temperature field.

[0016] In one embodiment, the air swing mechanism is a baffle that swings up and down.

[0017] In one embodiment, the control unit is a single chip microcomputer.

[0018] In one embodiment, the door panel of the cabinet is provided with a display screen, and the display screen is electrically connected to the control unit to display temperature data.

[0019] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects: the first temperature sensor is arranged at the air inlet to detect the air inlet temperature, the second temperature sensor is arranged at the air outlet to detect the air outlet temperature, and the third temperature sensor is arranged in the cabinet to detect the internal temperature of the inner cavity; the control unit starts the variable frequency fan when the third temperature sensor is greater than a preset value, and generates a temperature control instruction according to the temperature difference between the first temperature sensor and the second temperature sensor to adjust the frequency of the air compressor so that the heat in the cabinet can be dissipated in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic structural diagram of a temperature detection device for an energy storage cabinet according to an embodiment of the present utility model.

[0021] Figure 2 This is a connection diagram of a control unit and a temperature detection module according to an embodiment of the present invention.

[0022] Figure 3 The figure is a schematic structural diagram of a wind swing mechanism according to an embodiment of the present utility model.

[0023] Description of Figure Numbers:

[0024] 10-cabinet; 21-air inlet; 22-air outlet; 30-control unit; 41-first temperature sensor; 42-second temperature sensor; 43-third temperature sensor; 100-air outlet frame; 200-drive motor; 300-swing blade; 400-connecting rod; 220-clutch. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and beneficial effects of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] For ease of description, spatially relative terms, such as "under", "below", "down", "above", "upper", etc., will be used when necessary to describe the relationship of one element or feature relative to another element or feature shown in the drawings. The spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. For example, if the device in the figure is turned over, elements described as being "under" or "beneath" other elements or features will be oriented as being "above" the other elements or features.

[0027] Unless otherwise defined, the terms used herein have the same meaning as commonly understood by ordinary technicians in the field to which the present invention belongs, and the terms should be understood to have the same meaning as in the context of the relevant technology and should not be understood in an idealized or overly formal way, except for the cases explicitly defined in the present invention.

[0028] See also Figure 1 and Figure 2 , a temperature detection device for an energy storage cabinet, comprising:

[0029] The cabinet 10 is provided with an air inlet 21 and an air outlet 22, wherein the air inlet is connected to the air compressor via an air inlet pipe, and the air outlet is used to connect to the air outlet pipe;

[0030] The temperature detection module includes a first temperature sensor 41, a second temperature sensor 42 and a third temperature sensor 43, wherein the first temperature sensor is arranged at the air inlet to detect the air inlet temperature, the second temperature sensor is arranged at the air outlet to detect the air outlet temperature, and the third temperature sensor is arranged in the cabinet to detect the internal temperature of the inner cavity;

[0031] The control unit 30 is electrically connected to the first temperature sensor, the second temperature sensor and the third temperature sensor. When the third temperature sensor is greater than a preset value, the air compressor is started, and a temperature control instruction is generated according to the temperature difference between the first temperature sensor and the second temperature sensor to adjust the frequency of the air compressor. It should be noted that the temperature sensor in the cabinet in the prior art cannot determine whether the heat in the cabinet can be dispersed in time. If the temperature sensor is set near the refrigeration outlet, the temperature detected by the temperature sensor of the refrigeration device will inevitably drop rapidly when the refrigeration device is working, but it cannot represent the temperature change in the entire cabinet. Therefore, the utility model forms a circulating airflow in the cabinet through the cold air flow, and then determines whether the heat in the cabinet is dispersed in time through the temperature difference between the first temperature sensor and the second temperature sensor.

[0032] Specifically, the control unit adjusts the internal temperature of the inner cavity by the change of the temperature of the third temperature sensor. When the temperature detected by the third temperature sensor is greater than the preset temperature T0, that is, the cabinet needs to ensure the normal operation of the server or other electrical equipment within the safe temperature range, the control unit starts the air compressor to supply cold air (the air supply temperature is within the safe temperature range) and controls the opening of the air inlet channel; if the heat of the server or other equipment in the cabinet cannot be dissipated in time, the equipment will trip due to overheating or even burn out. At the same time, the insulation of the server or other equipment will age rapidly, causing the service life and rated current of the server or other equipment to decrease. The temperature difference between the first temperature sensor and the second temperature sensor is used to determine whether the heat inside the cabinet is dissipated in time. When the temperature difference between the first temperature sensor and the second temperature sensor is less than the preset temperature difference T1, such as the temperature difference between the first temperature sensor and the second temperature sensor is less than 8°C, it means that the heat can be dissipated in time. At this time, the control unit does not need to adjust the frequency of the air compressor to increase the air volume. When the temperature difference between the first temperature sensor and the second temperature sensor is greater than the temperature difference T1. If the temperature difference between the first temperature sensor and the second temperature sensor is greater than 8°C, it is determined that the heat inside the cabinet cannot be dissipated in time. At this time, the control unit needs to adjust the frequency of the air compressor to increase the air volume and increase the cooling effect. When the temperature detected by the third temperature sensor is lower than the preset temperature T0, the control unit controls the air compressor to turn off and controls the closing of the air inlet channel.

[0033] Specifically, the frequency of the air compressor can be set to three gears as needed, such as 50HZ, 55HZ, and 60HZ. When the temperature difference between the first temperature sensor and the second temperature sensor is greater than 8°C and less than 12°C, the control unit generates a first instruction to control the frequency of the air compressor to be set to 55HZ. When the temperature difference between the first temperature sensor and the second temperature sensor is greater than or equal to 12°C, the control unit generates a second instruction to control the frequency of the air compressor to be set to 60HZ.

[0034] It is worth mentioning that the temperature adjustment of the control unit has automatic temperature adjustment mode and constant temperature mode. In the automatic temperature adjustment mode, the air compressor is started when the temperature detected by the third temperature sensor is greater than the preset temperature T0, and the air compressor does not work when the temperature detected by the third temperature sensor is less than the preset temperature T0. In the constant temperature mode, the air compressor keeps working, and the control unit adjusts the air volume of the air compressor to maintain the temperature inside the cabinet at the preset temperature T0.

[0035] The cross-sectional area of ​​the air inlet is less than or equal to the cross-sectional area of ​​the air outlet. In one embodiment, the cross-sectional area of ​​the air inlet is the same as the cross-sectional area of ​​the air outlet, so that the air outlet volume can be greater than or equal to the air inlet volume, which is convenient for heat dissipation.

[0036] In one embodiment, the energy storage cabinet temperature detection device further comprises a cooling fan, the cooling fan is arranged at the air outlet, and the control unit controls the speed of the cooling fan to adjust the air volume. In order to prevent the exhausted air from flowing back, a one-way valve is arranged on the air outlet pipe.

[0037] In one embodiment, the air inlet is arranged opposite to the air outlet and the height of the air inlet is higher than the height of the air outlet. The air inlet is arranged at the top of the cabinet, and the air outlet is arranged at the bottom of the cabinet, so that the air outlet forms a circulating airflow, improves the airflow circulation efficiency, and reduces energy consumption. Since the density of cold air is large, when the air becomes cold, it becomes denser, so it sinks from the upper end of the cabinet to the lower end. By having the height of the air inlet higher than the height of the air outlet, the cold air is blown downward, which can cool more effectively.

[0038] In one embodiment, the third temperature sensor is a non-contact temperature sensor, and is also used to measure the temperature distribution of the temperature field. Furthermore, a swing mechanism and a drive motor 200 are movably arranged at the air inlet, and the control unit receives the temperature distribution data of the temperature field of the third temperature sensor, and controls the drive motor to drive the swing mechanism so that the airflow is aligned with the high-temperature intensive area of ​​the temperature field. For example, the swing mechanism is a baffle that swings up and down.

[0039] like Figure 3 As shown, in another embodiment, the swing mechanism includes an air outlet frame 100 and a plurality of swing blades 300, the driving motor is arranged in parallel in the air outlet frame, the swing blades are pivoted on the air outlet frame, and the driving motor has a forward and reverse driving circuit, and the output shaft of the driving motor is fixed to the air outlet frame through a clutch 220, and the clutch enables the output shaft to rotate relative to the air outlet frame under a certain torque, and one end of the body of the driving motor is pivoted on the air outlet frame, and the body and the swing blades are linked by a connecting rod 400.

[0040] The specific implementation modes of the present invention are described above, but the present invention is not limited thereto. The present invention can also have various changes without departing from the purpose of the present invention.

Claims

1. A temperature detection device for an energy storage cabinet, characterized in that: include: A cabinet body, wherein an air inlet and an air outlet are arranged on the cabinet body, wherein the air inlet is connected to the air compressor through an air inlet pipe, and the air outlet is used to connect to the air outlet pipe; The temperature detection module includes a first temperature sensor, a second temperature sensor and a third temperature sensor, wherein the first temperature sensor is arranged at the air inlet to detect the air inlet temperature, the second temperature sensor is arranged at the air outlet to detect the air outlet temperature, and the third temperature sensor is arranged in the cabinet to detect the internal temperature of the inner cavity; The control unit is electrically connected to the first temperature sensor, the second temperature sensor and the third temperature sensor. When the temperature of the third temperature sensor is greater than a preset value, the air compressor is started, and a temperature control instruction is generated according to the temperature difference between the first temperature sensor and the second temperature sensor to adjust the frequency of the air compressor.

2. The energy storage cabinet temperature detection device according to claim 1, characterized in that: The cross-sectional area of ​​the air inlet is the same as the cross-sectional area of ​​the air outlet.

3. The energy storage cabinet temperature detection device according to claim 1, characterized in that: It also includes a heat dissipation fan, which is arranged at the air outlet, and the control unit controls the rotation speed of the heat dissipation fan to adjust the air output.

4. The energy storage cabinet temperature detection device according to claim 1, characterized in that: A one-way valve is arranged on the air outlet pipe.

5. The energy storage cabinet temperature detection device according to claim 1, characterized in that: The air inlet is arranged opposite to the air outlet and the height of the air inlet is higher than the height of the air outlet, so that the air outlet forms a circulating airflow.

6. The energy storage cabinet temperature detection device according to claim 1, characterized in that: The third temperature sensor is a non-contact temperature sensor, which is used to measure the temperature distribution of the temperature field.

7. The energy storage cabinet temperature detection device according to claim 6, characterized in that: The air inlet is provided with a movably arranged swing mechanism and a drive motor, the control unit receives the temperature distribution data of the temperature field of the third temperature sensor, and controls the drive motor to drive the swing mechanism to align the air flow with the high-temperature intensive area of ​​the temperature field.

8. The energy storage cabinet temperature detection device according to claim 7, characterized in that: The wind swing mechanism is a baffle that swings up and down.

9. The energy storage cabinet temperature detection device according to claim 1, characterized in that: The control unit is a single chip microcomputer.

10. The energy storage cabinet temperature detection device according to claim 1, characterized in that: The door panel of the cabinet is provided with a display screen, and the display screen is electrically connected to the control unit to display temperature data.

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