Device and system for low-pressure charging

Abstract

The utility model discloses a device and a system for low-pressure charging, which belong to the technical field of battery testing and comprise an explosion-proof box and an explosion-proof door rotatably arranged on the explosion-proof box, and the explosion-proof door and the explosion-proof box enclose to form a testing space for placing a tested battery. The exhaust inlet assembly and the exhaust fan are respectively located in the test space, the output power supply is arranged in the test cabinet, and the exhaust fan is connected with the exhaust inlet assembly; one end of the exhaust pipeline is located outside the test space, and the other end of the exhaust pipeline penetrates through the explosion-proof box and then is connected with the exhaust fan; the test cabinet is located outside the test space; the terminal is connected with the output power supply, the terminal penetrates through the explosion-proof box and then is connected with a connector bar, and the connector bar is connected with the test battery. According to the utility model, the charging test under low air pressure can be realized, and the safety risk can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery testing, and in particular relates to a device and a system for low-pressure charging. Background Art

[0002] Charging test under low pressure is to evaluate the charging performance of batteries or other energy storage devices under specific low pressure environment, which is particularly important in battery design and development. At present, in battery testing technology, open or semi-closed test environment is usually adopted, such as directly placing the battery in the atmosphere for charging test, which cannot simulate or control low pressure conditions, resulting in limited accuracy and reliability of test results. Or under low pressure conditions, the battery may produce abnormal explosion and impact force, affecting the safety of testers.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that it is difficult to implement charging test under low pressure, which has a high safety risk.

[0005] To solve the above technical problems, the utility model provides a device for low-pressure charging, the device comprising: an explosion-proof box, an explosion-proof door rotatably arranged on the explosion-proof box, the explosion-proof door and the explosion-proof box enclose a test space for placing a test battery, and an air suction port assembly and an exhaust fan, an exhaust duct, a test cabinet and an output power supply arranged in the test cabinet, respectively located in the test space, the exhaust fan is connected to the air suction port assembly; one end of the exhaust duct is located outside the test space, and the other end of the exhaust duct passes through the explosion-proof box and is connected to the exhaust fan; the test cabinet is located outside the test space; a wiring terminal connected to the output power supply, the wiring terminal passes through the explosion-proof box and is connected to a wiring bank, and the wiring bank is connected to the test battery.

[0006] Optionally, the explosion-proof box includes a top side panel, a bottom side panel, a left side panel, a right side panel, a rear side panel and a front side panel, the rear side panel is respectively connected to the top side panel, the bottom side panel, the left side panel and the right side panel, the front side panel is respectively connected to the top side panel, the left side panel and the right side panel, the explosion-proof door is rotatably connected to the left side panel, and the top side panel, the bottom side panel, the left side panel, the right side panel, the rear side panel, the front side panel and the explosion-proof door enclose the test space.

[0007] Optionally, the left side plate is provided with a through hole, and the other end of the exhaust duct passes through the through hole and is connected to the exhaust fan.

[0008] Optionally, the right side plate is provided with an insulating hole, and the wiring terminal passes through the insulating hole and is connected to the wiring bank.

[0009] Optionally, an insulating sleeve is provided in the insulating hole, the insulating sleeve is clamped with the right side plate, and the wiring terminal is connected to the wiring bank after passing through the insulating sleeve.

[0010] Optionally, an installation space is reserved between the front side plate and the bottom side plate, and the explosion-proof door is located in the installation space, and a projection of the front side plate on the rear side plate in a direction approaching the rear side plate is located on the rear side plate.

[0011] Optionally, the device further includes: a temperature sensor is arranged in the test space; and a display is arranged on the front side panel, and the display is connected to the temperature sensor.

[0012] Optionally, the device further comprises: an indicator light arranged on the front side panel, wherein the indicator light is connected to the display.

[0013] Optionally, the device further comprises: an emergency stop switch, wherein the emergency stop switch is respectively connected to the output power supply and the wiring terminal, and the output power supply, the emergency stop switch, the wiring terminal, the wiring bank and the test battery are connected in series.

[0014] According to another aspect of the utility model, the utility model also provides a system for low-pressure charging, the system for low-pressure charging includes the device for low-pressure charging, and also includes a test battery, the test battery is placed in the test space, and the test battery is connected to the terminal block.

[0015] Beneficial effects:

[0016] The utility model provides a device for low-pressure charging, which is rotatably arranged in an explosion-proof box through an explosion-proof door, and the explosion-proof door and the explosion-proof box enclose a test space, and the test space is used to place a test battery. The air suction port assembly and the exhaust fan are respectively located inside the test space, and the exhaust fan is connected to the air suction port assembly. One end of the exhaust duct is located outside the test space, and the other end of the exhaust duct passes through the explosion-proof box and is connected to the exhaust fan. The output power supply is arranged in a test cabinet, and the test cabinet is located outside the test space. The wiring terminal is connected to the output power supply, and the wiring terminal passes through the explosion-proof box and is connected to the wiring bank, and the wiring bank is connected to the test battery. In this way, the test battery is placed inside the test space, the test battery is connected to the terminal block, and the output power supply set in the test cabinet is connected to the terminal block through the terminal to charge the test battery. After closing the explosion-proof door, the test space is in a sealed state. The gas inside the test space is discharged from the exhaust duct to the outside of the test space through the exhaust fan and the air inlet assembly connected to the exhaust fan, so that the test space is in a low pressure state, and then the charging test of the test battery is realized under low pressure. The explosion-proof box and the explosion-proof door will resist the impact force formed when the battery produces an abnormal explosion, which is conducive to reducing safety risks. Thereby achieving the technical effect of being able to realize charging tests under low pressure and reduce safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a device for low-pressure charging provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0020] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0021] In the embodiments of the present application, at least one refers to one or more; multiple refers to two or more. In the description of the present application, the words "first", "second", "third", etc. are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0022] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, in this specification, the terms "include", "comprise", "have" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. It should be noted that in the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0023] It should be pointed out that in the embodiments of the present invention, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. At the same time, "connection" in the embodiments of the present application can also be understood as electrical connection, and the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, A is connected to B, which can be either a direct connection between A and B or an indirect connection between A and B through one or more other electrical components. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the present invention.

[0024] The utility model provides a device for low-pressure charging, see Figure 1As shown, a device for low-pressure charging provided by the first embodiment of the utility model includes an explosion-proof box 1, an explosion-proof door 2, an air suction port assembly 3, an exhaust fan 4, an exhaust duct 5, a test cabinet 6 and an output power supply 7. The explosion-proof door 2 is rotatably arranged behind the explosion-proof box 1, and the explosion-proof door 2 and the explosion-proof box 1 are enclosed to form a test space 21, and the test battery 105 is placed inside the test space 21. The air suction port assembly 3 and the exhaust fan 4 are respectively located inside the test space 21, and the exhaust fan 4 is connected to the air suction port assembly 3. One end of the exhaust duct 5 is located outside the test space 21, and the other end of the exhaust duct 5 passes through the explosion-proof box 1 and is connected to the exhaust fan 4. The output power supply 7 is arranged in the test cabinet 6, and the test cabinet 6 is located outside the test space 21. The terminal 8 is connected to the output power supply 7, and the terminal 8 passes through the explosion-proof box 1 and is connected to the terminal block 9, and the terminal block 9 is connected to the test battery 105.

[0025] Among them, the explosion-proof door 2 and the explosion-proof box 1 enclose the test space 21, which has a space for accommodating the air suction port assembly 3, the exhaust fan 4 and the test battery 105. The test cabinet 6 is located outside the test space 21, and the output power supply 7 built into the test cabinet 6 is connected to the test battery 105 through the terminal 8 and the terminal block 9, providing the test battery 105 with the power required for charging. In actual operation, the test battery 105 is first placed in the test space 21, and the test battery 105 is connected to the output power supply 7 through the terminal block 9. Subsequently, the explosion-proof door 2 is closed, the exhaust fan 4 is started, and the gas in the test space 21 is discharged through the air suction port assembly 3, so that the test space 21 forms a low-pressure environment. At this time, the output power supply 7 in the test cabinet 6 starts to charge the test battery 105, realizing the charging test under low pressure. The explosion-proof box 1 and the explosion-proof door 2 are both made of high-strength materials to ensure that they can withstand the impact force when the battery explodes abnormally, reducing safety risks. The air inlet assembly 3 can be designed as a plurality of small air inlets evenly distributed inside the test space 21 to improve the exhaust efficiency. The exhaust fan 4 is selected to be a high-efficiency, low-noise model to ensure stable operation in a low-pressure environment. The exhaust duct 5 can be made of high-temperature resistant and corrosion-resistant materials to adapt to various complex environments.

[0026] In this embodiment, the explosion-proof door 2 is rotatably arranged in the explosion-proof box 1, and the explosion-proof door 2 and the explosion-proof box 1 enclose a test space 21, and the test space 21 is used to place the test battery 105. The air inlet assembly 3 and the exhaust fan 4 are respectively located inside the test space 21, and the exhaust fan 4 is connected to the air inlet assembly 3. One end of the exhaust duct 5 is located outside the test space 21, and the other end of the exhaust duct 5 is connected to the exhaust fan 4 after passing through the explosion-proof box 1. The output power supply 7 is arranged in the test cabinet 6, and the test cabinet 6 is located outside the test space 21. The terminal 8 is connected to the output power supply 7, and the terminal 8 is connected to the terminal block 9 after passing through the explosion-proof box 1, and the terminal block 9 is connected to the test battery 105. In this way, the test battery 105 is placed inside the test space 21, the test battery 105 is connected to the terminal block 9, and the output power supply 7 set in the test cabinet 6 is connected to the terminal block 9 through the terminal 8 to charge the test battery 105. After closing the explosion-proof door 2, the test space 21 is in a sealed state. The gas inside the test space 21 is discharged from the exhaust duct 5 to the outside of the test space 21 through the exhaust fan 4 and the air inlet assembly 3 connected to the exhaust fan 4, so that the test space 21 is in a low pressure state, and then the charging test of the test battery 105 is realized under low pressure, and the explosion-proof box 1 and the explosion-proof door 2 will resist the impact force formed when the battery produces an abnormal explosion, which is conducive to reducing safety risks. Thereby achieving the technical effect of being able to realize charging test under low pressure and reduce safety risks.

[0027] As an embodiment, the explosion-proof box 1 includes a top side plate 11, a bottom side plate 12, a left side plate 13, a right side plate 14, a rear side plate 15 and a front side plate 16, the rear side plate 15 is respectively connected to the top side plate 11, the bottom side plate 12, the left side plate 13 and the right side plate 14, the front side plate 16 is respectively connected to the top side plate 11, the left side plate 13 and the right side plate 14, the explosion-proof door 2 is rotatably connected to the left side plate 13, such as a hinge is provided between the explosion-proof door 2 and the left side plate 13, and the explosion-proof door 2 is connected to the left side plate 13 through the hinge. The top side plate 11, the bottom side plate 12, the left side plate 13, the right side plate 14, the rear side plate 15, the front side plate 16 and the explosion-proof door 2 enclose a test space 21, and the test space 21 is a closed space when the explosion-proof door 2 is in a closed state. When the test battery 105 is subjected to a low-pressure charging test in the test space 21, the explosion-proof box 1 can effectively prevent the impact force generated when the battery explodes abnormally, thereby reducing safety risks.

[0028] In some embodiments, the left side plate 13 is provided with a through hole 131, and the other end of the exhaust duct 5 passes through the through hole 131 and is connected to the exhaust fan 4. It can be understood by those skilled in the art that in the device for low-pressure charging provided in the embodiment of the utility model, the specific structure of the air suction port assembly 3 is not limited. It is only necessary to realize that during the test process, the exhaust fan 4 sucks the gas in the test space 21 through the air suction port assembly 3 and discharges it to the outside of the test space 21 through the exhaust duct 5. Since the exhaust duct 5 is directly connected to the exhaust fan 4, the gas in the test space 21 can be discharged more quickly, and the low pressure state can be reached more quickly, providing a more stable test environment for the test battery 105.

[0029] In some embodiments, the right side plate 14 is provided with an insulating hole 141, and the terminal 8 passes through the insulating hole 141 and is connected to the terminal block 9. The connection between the terminal 8 and the terminal block 9 provides a stable power supply for the test battery 105, and the insulating hole 141 ensures the safety of the electrical connection, avoiding safety risks caused by problems such as electrical short circuits.

[0030] In some embodiments, the insulating sleeve is disposed in the insulating hole 141, the insulating sleeve is clamped with the right side plate 14, and the terminal 8 is connected to the terminal block 9 after passing through the insulating sleeve. It is understood by those skilled in the art that the specific structure of the insulating sleeve is not limited in the device for low-pressure charging provided in the embodiment of the utility model, and it is only necessary to realize that the terminal 8 can be better fixed and protected when passing through the insulating hole 141 through the insulating sleeve to avoid safety problems caused by loose terminal 8 or poor electrical contact.

[0031] In some embodiments, an installation space is reserved between the front side panel 16 and the bottom side panel 12, and the explosion-proof door 2 is located inside the installation space, and the projection of the front side panel 16 on the rear side panel 15 along the direction close to the rear side panel 15 is located on the rear side panel 15, so that the explosion-proof door 2 can be completely embedded in the installation space when closed, thereby enhancing the sealing and safety of the device.

[0032] As an implementation mode, a device for low-pressure charging provided by an embodiment of the utility model further includes a temperature sensor and a display 101. The temperature sensor is arranged inside the test space 21. The temperature sensor is used to collect temperature information inside the test space 21. The display 101 is arranged on the front side panel 16. The display 101 is connected to the temperature sensor. The display 101 is used to display the temperature value inside the test space 21 to the operator in real time. By real-time monitoring and displaying the temperature of the test space 21, the user can more intuitively understand the state of the test environment and more accurately evaluate the performance and safety of the test battery 105.

[0033] As an implementation mode, a device for low-pressure charging provided by an embodiment of the utility model further includes an indicator light 102, which is arranged on the front side panel 16 and connected to the display 101. For example, when the temperature of the test space 21 exceeds a preset threshold, the indicator light 102 will light up to alert the user. That is, when the temperature of the test space 21 is abnormal, the user can find out in time and take corresponding measures through the lighting of the indicator light 102 to ensure the safety and stability of the test process.

[0034] As an implementation mode, a device for low-pressure charging provided by the embodiment of the utility model also includes an emergency stop switch 104, which is connected to the output power supply 7 and the terminal 8 respectively. The output power supply 7, the emergency stop switch 104, the terminal 8, the terminal block 9 and the test battery 105 are connected in series. The emergency stop switch 104 usually makes the output power supply 7, the terminal 8, the terminal block 9 and the test battery 105 in a passage. When it is necessary to stop the test in time, the test battery 105 will be powered off by pressing the emergency stop switch 104. If the above-mentioned indicator light 102 is in an alarm state, the emergency stop switch 104 can be pressed to stop the test in time, which is conducive to improving safety. In addition, a power display light can also be provided on the test cabinet 6, and the power display light is used to display whether the test cabinet 6 is in a powered-on state.

[0035] In order to explain in detail a system for low-pressure charging provided by the present invention, the above-mentioned embodiment 1 explains in detail a device for low-pressure charging. Based on the same inventive concept, the present application also provides a system for low-pressure charging, see embodiment 2 for details.

[0036] Embodiment 2 of the present invention provides a system for low-pressure charging, which includes the above-mentioned device for low-pressure charging, and also includes a test battery 105, which is placed inside the test space 21 and connected to the terminal block 9.

[0037] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A device for low-pressure charging, characterized in that: The device includes: an explosion-proof box, a rotatable explosion-proof door arranged in the explosion-proof box, the explosion-proof door and the explosion-proof box enclose a test space for placing a test battery, and an air suction port assembly and an exhaust fan, an exhaust duct, a test cabinet and an output power supply arranged in the test cabinet, respectively located in the test space, the exhaust fan is connected to the air suction port assembly; one end of the exhaust duct is located outside the test space, and the other end of the exhaust duct passes through the explosion-proof box and is connected to the exhaust fan; the test cabinet is located outside the test space; a wiring terminal connected to the output power supply, the wiring terminal passes through the explosion-proof box and is connected to a wiring bank, and the wiring bank is connected to the test battery.

2. The device for low-pressure charging according to claim 1, characterized in that: The explosion-proof box includes a top side panel, a bottom side panel, a left side panel, a right side panel, a rear side panel and a front side panel, the rear side panel is respectively connected to the top side panel, the bottom side panel, the left side panel and the right side panel, the front side panel is respectively connected to the top side panel, the left side panel and the right side panel, the explosion-proof door is rotatably connected to the left side panel, and the top side panel, the bottom side panel, the left side panel, the right side panel, the rear side panel, the front side panel and the explosion-proof door enclose the test space.

3. The device for low-pressure charging according to claim 2, characterized in that: The left side plate is provided with a through hole, and the other end of the exhaust duct passes through the through hole and is connected to the exhaust fan.

4. The device for low-pressure charging according to claim 2, characterized in that: The right side plate is provided with an insulating hole, and the wiring terminal is connected to the wiring bank after passing through the insulating hole.

5. The device for low-pressure charging according to claim 4, characterized in that: An insulating sleeve is arranged in the insulating hole, the insulating sleeve is clamped with the right side plate, and the wiring terminal is connected with the wiring bank after passing through the insulating sleeve.

6. The device for low-pressure charging according to claim 2, characterized in that: An installation space is reserved between the front side plate and the bottom side plate, and the explosion-proof door is located in the installation space. The projection of the front side plate on the rear side plate in a direction close to the rear side plate is located on the rear side plate.

7. The device for low-pressure charging according to claim 2, characterized in that: The device further comprises: a temperature sensor is arranged in the test space; and a display is arranged on the front side plate, and the display is connected to the temperature sensor.

8. The device for low-pressure charging according to claim 7, characterized in that: The device further comprises: an indicator light arranged on the front side plate, wherein the indicator light is connected to the display.

9. The device for low-pressure charging according to claim 1, characterized in that: The device further comprises an emergency stop switch, wherein the emergency stop switch is connected to the output power supply and the wiring terminal respectively, and the output power supply, the emergency stop switch, the wiring terminal, the wiring bank and the test battery are connected in series.

10. A system for low-pressure charging, characterized in that: The system for low-pressure charging comprises the device for low-pressure charging as described in any one of claims 1 to 9, and further comprises a test battery, wherein the test battery is placed in the test space and connected to the terminal block.

Images