Storage battery performance test system

Abstract

The utility model provides a storage battery performance test system. The storage battery performance test system comprises an upper cabinet body used for placing a storage battery to be tested; a cold air conditioner for injecting cold air is arranged on the rear wall of the upper cabinet body; a temperature sensor is arranged in the upper cabinet body; the normally open contact of the second contactor, the current sensor and the load resistor are connected in series between the two power supply ends of the to-be-tested storage battery, and the two power supply ends of the to-be-tested storage battery are connected in parallel with the voltage sensor. According to the storage battery performance test system, through the temperature sensor and the cold air conditioner, the storage battery to be tested can be simulated to be in a low-temperature outdoor environment state, and the storage battery performance test system has the characteristic of comprehensive storage battery performance test results.

Description

Technical Field

[0001] The utility model belongs to the field of storage batteries, and in particular relates to a storage battery performance testing system. Background Art

[0002] As a mature energy storage device, batteries have been widely used in all aspects of social production and life. As battery usage continues to grow, the stability of battery performance has also received increasing attention. How to quickly, accurately, and comprehensively test battery performance has become a key issue. Under existing technical conditions, commonly used battery performance testing methods generally have problems such as limited functionality, low automation, and complex operation. Utility Model Content

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a battery performance testing system.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A battery performance testing system comprises an upper cabinet for placing a battery to be tested; a cold air conditioner for injecting cold air is provided on the rear wall of the upper cabinet; a temperature sensor is provided inside the upper cabinet; the normally open contact of a second contactor, a current sensor and a load resistor are connected in series between the two ends of the power supply of the battery to be tested, and the two ends of the power supply of the battery to be tested are connected in parallel to the two ends of a voltage sensor; an external power supply is connected to the power supply end of the cold air conditioner via the normally open contact of the first contactor; the external power supply is connected to a first indicator light via the normally open contact of a first relay, and the external power supply is connected to a second indicator light via the normally open contact of a second relay; a temperature sensor signal end, a current sensor signal end and a voltage sensor signal end are respectively connected to a programmable controller (PLC) signal input end; a first contactor coil end, a second contactor coil end, a first relay coil end and a second relay coil end are respectively connected to a programmable controller (PLC) signal output end; and the programmable controller (PLC) is connected to a touch screen via an RS485 interface.

[0006] According to an embodiment of the present invention, the external power supply is connected to the DC power input terminal; the temperature sensor power supply terminal, the voltage sensor power supply terminal, the current sensor power supply terminal, the programmable controller PLC power supply terminal and the touch screen power supply terminal are respectively connected to the DC power output terminal.

[0007] According to an embodiment of the present invention, a lower cabinet is provided below the upper cabinet, and the touch screen is provided on the front surface of the lower cabinet.

[0008] According to an embodiment of the present invention, an electrical appliance box is provided in the lower cabinet; the programmable controller PLC, the first contactor, the second contactor, the first relay, and the second relay are all provided in the electrical appliance box.

[0009] According to an embodiment of the present invention, the first indicator light and the second indicator light are both arranged on the front surface of the lower cabinet.

[0010] According to an embodiment of the present invention, the first indicator light is a green indicator light and the second indicator light is a red indicator light.

[0011] According to an embodiment of the present invention, the DC power supply is arranged in the electrical box.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] First, the battery performance test system disclosed in the present invention can simulate the battery to be tested in a low-temperature outdoor environment through a temperature sensor and an air conditioner, and has the characteristic of comprehensive battery performance test results.

[0014] Second, the utility model discloses a battery performance test system, which automatically controls the test system through a programmable controller PLC, a first contactor, a second contactor, a first relay and a second relay, and has the characteristics of convenient operation and reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the principle of a battery performance testing system according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of power supply for a battery performance testing system according to an embodiment of the present utility model;

[0018] Figure 3 The figure is a structural diagram of a battery performance testing system according to an embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 1- Temperature sensor; 2- Voltage sensor; 3- Current sensor; 4- Programmable controller (PLC); 5- Touch screen; 6- First contactor; 7- Second contactor; 8- First relay; 9- Second relay; 10- Air conditioner; 11- Battery to be tested; 12- First indicator light; 13- Second indicator light; 14- DC power supply; 100- Upper cabinet; 200- Lower cabinet; 210- Electrical box. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the description of this utility model, it should be further clarified that the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] like Figure 1-3As shown, a battery performance test system includes an upper cabinet 100 for placing a battery 11 to be tested; a cold air conditioner 10 for injecting cold air is provided on the rear wall of the upper cabinet 100; a temperature sensor 1 is provided inside the upper cabinet 100; the normally open contacts of the second contactor 7, the current sensor 3 and the load resistor are connected in series between the two ends of the power supply of the battery 11 to be tested, and the two ends of the power supply of the battery 11 to be tested are connected in parallel to the two ends of the voltage sensor 2; an external power supply is connected to the power supply end of the cold air conditioner 10 through the normally open contact of the first contactor 6; the external power supply is connected to the first indicator light 12 through the normally open contact of the first relay 8, and the external power supply is connected to the second indicator light 13 through the normally open contact of the second relay 9; the signal end of the temperature sensor 1, the signal end of the current sensor 3 and the signal end of the voltage sensor 2 are respectively connected to the signal input end of the programmable controller PLC4; the coil end of the first contactor 6, the coil end of the second contactor 7, the coil end of the first relay 8 and the coil end of the second relay 9 are respectively connected to the signal output end of the programmable controller PLC4; the programmable controller PLC4 is connected to the touch screen 5 through the RS485 interface.

[0027] In this embodiment, the operator first places the battery to be tested 11 into the upper cabinet 100, and then connects the second contactor 7, the current sensor 3, the voltage sensor 2 and the load resistor. At this time, the preset temperature value in the upper cabinet 100 is set through the touch screen 5. In fact, the temperature value in the cabinet 100 is collected by the temperature sensor 1 and sent to the programmable controller PLC4. When the temperature value in the upper cabinet 100 is higher than the preset temperature value, the programmable controller PLC4 controls the first contactor 6 to adsorb, and the air conditioner 10 delivers cold air to the upper cabinet 100. At this time, the upper cabinet 100 simulates that the battery to be tested 11 is in a low temperature environment. The current sensor 3 and the voltage sensor 2 collect the voltage value and current value output by the battery to be tested 11 at this time, and send them to the programmable controller PLC4, and finally display them on the touch screen 5.

[0028] In this embodiment, when it is necessary to conduct a power-on test on the battery to be tested 11 , the operator controls the programmable controller PLC 4 to close the normally open contact of the second contactor 7 through the touch screen 5 .

[0029] When the values collected by the current sensor 3 and the voltage sensor 2 are seriously abnormal and exceed the set threshold, the programmable controller PLC4 controls the second contactor 7 to stop adsorption. At this time, the battery 11 to be tested is disconnected from power supply, which plays a role in protecting the battery 11 to be tested.

[0030] When the temperature value in the upper cabinet 100 collected by the temperature sensor 1 reaches the set temperature, the programmable controller PLC4 controls the first contactor 6 to open, and the air conditioner 10 is powered off and stops supplying cold air to the upper cabinet 100.

[0031] According to the embodiment of the present utility model, Figure 2 As shown, the external power supply is connected to the input end of the DC power supply 14; the power supply end of the temperature sensor 1, the power supply end of the voltage sensor 2, the power supply end of the current sensor 3, the power supply end of the programmable controller PLC4 and the power supply end of the touch screen 5 are respectively connected to the output end of the DC power supply 14.

[0032] According to the embodiment of the present utility model, Figure 3 As shown, a lower cabinet 200 is provided below the upper cabinet 100 , and the touch screen 5 is provided on the front surface of the lower cabinet 200 .

[0033] According to the embodiment of the present utility model, Figure 1 and Figure 3 As shown, an electrical box 210 is provided in the lower cabinet 200 ; the programmable controller PLC4 , the first contactor 6 , the second contactor 7 , the first relay 8 , and the second relay 9 are all provided in the electrical box 210 .

[0034] According to the embodiment of the present utility model, Figure 3 As shown, the first indicator light 12 and the second indicator light 13 are both arranged on the front surface of the lower cabinet 200 .

[0035] According to the embodiment of the present utility model, Figure 3 As shown, the first indicator light 12 is a green indicator light and the second indicator light 13 is a red indicator light.

[0036] In this embodiment, when the second contactor 7 is engaged, the battery 11 to be tested supplies power. At this time, the programmable controller PLC4 controls the first relay 8 to be engaged, and the first indicator light 12 lights up. When the second contactor 7 is disconnected, the battery 11 to be tested stops supplying power. At this time, the programmable controller PLC4 controls the second relay 9 to be engaged, and the second indicator light 13 lights up.

[0037] According to an embodiment of the present invention, the DC power supply 14 is disposed in the electrical box 210 .

[0038] The above describes embodiments of the present invention. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although each embodiment has been described separately above, this does not mean that the measures in each embodiment cannot be used in combination to advantage. The scope of the present invention is defined by the appended claims and their equivalents. Without departing from the scope of the present invention, those skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A battery performance testing system, characterized by: The invention comprises an upper cabinet (100) for placing a battery to be tested (11); a cold air conditioner (10) for injecting cold air is provided on the rear wall of the upper cabinet (100); a temperature sensor (1) is provided inside the upper cabinet (100); the normally open contacts of a second contactor (7), a current sensor (3) and a load resistor are connected in series between the two ends of the power supply of the battery to be tested (11); the two ends of the power supply of the battery to be tested (11) are connected in parallel with the two ends of the voltage sensor (2); an external power supply is connected to the power supply end of the cold air conditioner (10) through the normally open contacts of a first contactor (6); the external power supply is connected to the first relay (8) through the normally open contacts of the first relay (8) The external power supply is connected to the second indicator light (12) through the normally open contact of the second relay (9); the signal end of the temperature sensor (1), the signal end of the current sensor (3) and the signal end of the voltage sensor (2) are respectively connected to the signal input end of the programmable controller PLC (4); the coil end of the first contactor (6), the coil end of the second contactor (7), the coil end of the first relay (8) and the coil end of the second relay (9) are respectively connected to the signal output end of the programmable controller PLC (4); the programmable controller PLC (4) is connected to the touch screen (5) through the RS485 interface.

2. A battery performance testing system according to claim 1, characterized in that: The external power supply is connected to the input end of the DC power supply (14); the power supply end of the temperature sensor (1), the power supply end of the voltage sensor (2), the power supply end of the current sensor (3), the power supply end of the programmable controller PLC (4), and the power supply end of the touch screen (5) are respectively connected to the output end of the DC power supply (14).

3. A battery performance testing system according to claim 2, characterized in that: A lower cabinet (200) is provided below the upper cabinet (100), and the touch screen (5) is provided on the front surface of the lower cabinet (200).

4. A battery performance testing system according to claim 3, characterized in that: An electrical appliance box (210) is provided in the lower cabinet (200); the programmable controller PLC (4), the first contactor (6), the second contactor (7), the first relay (8), and the second relay (9) are all arranged in the electrical appliance box (210).

5. A battery performance testing system according to claim 3, characterized in that: The first indicator light (12) and the second indicator light (13) are both arranged on the front surface of the lower cabinet (200).

6. A battery performance testing system according to claim 5, characterized in that: The first indicator light (12) is a green indicator light and the second indicator light (13) is a red indicator light.

7. A battery performance testing system according to claim 4, characterized in that: The DC power supply (14) is arranged in the electrical box (210).

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