Monitoring device for lithium battery installation fault alarm

Abstract

The utility model discloses a monitoring device for lithium battery installation fault alarm, which relates to the technical field of lithium battery monitoring, and comprises a device main body and a cover plate, a plurality of first displacement sensors and a plurality of second displacement sensors are respectively arranged at the upper part in the cover plate, and a first elastic sheet is fixed at the bottom of each first displacement sensor; and second elastic sheets are fixed at the bottoms of the plurality of second displacement sensors. Through the arrangement of the first elastic sheet, the second elastic sheet, the first displacement sensor and the second displacement sensor, a plurality of abutting rods at the bottom of the first elastic sheet abut against the tops of a plurality of lithium battery packs in a row, and meanwhile, a plurality of abutting rods at the bottom of the second elastic sheet abut against the tops of a plurality of lithium battery packs in a column; when a certain lithium battery pack is swelled, the lithium battery pack can jack up the two abutting rods at the top of the lithium battery pack, so that the first elastic pieces and the second elastic pieces at the tops of the two abutting rods are bent and deformed under stress; the number of displacement sensors is reduced, so that the wiring amount, energy consumption and purchase cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery monitoring, in particular to a monitoring device for lithium battery installation fault alarm. Background Art

[0002] The monitoring device for lithium battery installation fault alarm refers to a structure used to install lithium batteries, which plays a protective and limiting role. It will also be assisted by various sensor elements to monitor the temperature, current, voltage, bulging, etc. of the lithium battery during operation, so as to facilitate the safe use of lithium batteries.

[0003] Existing lithium battery installation fault alarm monitoring devices usually use two methods to monitor the bulging phenomenon of lithium batteries. One is the visual monitoring method, and the other is a monitoring method that uses a displacement sensor to convert displacement and pressure into electrical signals. In the method of monitoring using sensor elements, each lithium battery is usually equipped with a sensor element for accurate monitoring. However, this results in a large number of signal lines, which makes wiring more complicated. If the connection is wrong, false alarms may occur, causing the staff to replace the wrong lithium battery. At the same time, the energy consumption is also high. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a monitoring device for lithium battery installation fault alarm to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a monitoring device for lithium battery installation fault alarm, comprising a device body and a cover plate, wherein a plurality of first displacement sensors and a plurality of second displacement sensors are respectively installed on the upper part of the cover plate, and a first spring sheet is fixed at the bottom of the plurality of first displacement sensors, a second spring sheet is fixed at the bottom of the plurality of second displacement sensors, and a plurality of support rods are arranged at the bottom of the plurality of first spring sheets and the second spring sheets.

[0006] By adopting the above technical solution, the multiple levers at the bottom of the first spring sheet are abutted against the tops of multiple lithium battery packs in a row, and the multiple levers at the bottom of the second spring sheet are abutted against the tops of multiple lithium battery packs in a column. When a lithium battery pack bulges, the lithium battery pack will lift up the two levers at its top, so that the first spring sheet and the second spring sheet at the top of the two levers are bent and deformed by force, so that the corresponding first displacement sensor and the second displacement sensor receive the displacement movement and convert it into electrical signal output. Such a monitoring method only requires two displacement sensors to monitor several lithium battery packs at the same time, reducing costs, energy consumption and the number of signal lines. For positioning, it is only necessary to find the intersection of the corresponding first spring sheet and the second spring sheet to find the bulging lithium battery pack.

[0007] Furthermore, the first spring sheet and the second spring sheet are vertically distributed, and the second spring sheet is located above the first spring sheet.

[0008] By adopting the above technical solution, the lithium battery pack will lift up the two supporting rods on its top, so that the first spring sheet and the second spring sheet on the top of the two supporting rods are bent and deformed under the force. For positioning, it is only necessary to find the intersection of the first spring sheet and the second spring sheet to find the bulging lithium battery pack. This monitoring method only requires two displacement sensors to monitor several lithium battery packs at the same time.

[0009] Furthermore, the first spring piece and the second spring piece are both made of spring steel.

[0010] By adopting the above technical solution, the spring steel material has good elasticity. When the first spring sheet and the second spring sheet are no longer under pressure, they can automatically reset to facilitate subsequent monitoring of bulging phenomena on the new lithium battery pack.

[0011] Furthermore, the cover plate is connected to the top of the device body, a buckle is connected above the outer surface of the device body, a frame is installed inside the device body, and a plurality of support plates and lithium battery packs are respectively arranged inside the frame.

[0012] By adopting the above technical solution, the staff can remove the cover by unfastening the buckle, and then the staff can put the lithium battery pack into the frame, and limit the lithium battery pack through the cooperation of the frame and the support plate. After connecting the power cord, the staff will put the cover and the buckle back.

[0013] Furthermore, the abutment rod abuts against the lithium battery pack.

[0014] By adopting the above technical solution, when a lithium battery pack bulges, the lithium battery pack will lift up the two supporting rods on its top, so that the first spring sheet and the second spring sheet on the top of the two supporting rods are bent and deformed under force.

[0015] Furthermore, a current and voltage monitor is installed on one side of the device body, a display screen is installed on one side of the current and voltage monitor, and temperature sensors are installed on both sides of the cover.

[0016] By adopting the above technical solution, when the lithium battery pack is charging and discharging, the temperature inside the device body is monitored by the temperature sensor, and the output and input current and voltage of the lithium battery pack are monitored by the current and voltage monitor, and various information is displayed on the display screen for easy viewing by the staff.

[0017] Furthermore, a fan is installed at the lower part of the device body, a second dustproof net is installed at the bottom of the device body, and a first dustproof net is installed at the top of the cover plate.

[0018] By adopting the above technical solution, the fan generates airflow, which enters the device body from the second dustproof net, and then passes through the gaps between the multiple support plates and is discharged from the first dustproof net. At the same time, the first dustproof net and the second dustproof net reduce the entry of dust. The lithium battery pack transfers heat to the support plate during charging and discharging, so that the airflow takes away the heat when passing through the gaps between the multiple support plates to achieve the effect of cooling the lithium battery pack.

[0019] Furthermore, the support plates are aluminum alloy plates, and there are gaps between the multiple support plates.

[0020] By adopting the above technical solution, the lithium battery pack transfers heat to the support plate during charging and discharging, so that the airflow takes away the heat when passing through the gaps between the multiple support plates to achieve the effect of cooling the lithium battery pack.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model arranges the first spring piece, the second spring piece, the first displacement sensor and the second displacement sensor, and the multiple abutting rods at the bottom of the first spring piece abut against the tops of multiple lithium battery packs in a row, and the multiple abutting rods at the bottom of the second spring piece abut against the tops of multiple lithium battery packs in a column. When a lithium battery pack bulges, the lithium battery pack will lift up the two abutting rods at its top, so that the first spring piece and the second spring piece at the top of the two abutting rods are bent and deformed by force, so that the corresponding first displacement sensor and the second displacement sensor receive the displacement movement and convert it into electrical signal output. Such a monitoring method only needs two displacement sensors to monitor several lithium battery packs at the same time, reducing costs, energy consumption and the number of signal lines. For positioning, it only needs to find the intersection of the corresponding first spring piece and the second spring piece to find the bulging lithium battery pack; the number of displacement sensors is reduced, thereby reducing the amount of wiring, energy consumption and procurement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the side section structure of the device body of the utility model;

[0025] Figure 3 It is a schematic diagram of the top-sectional structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the first spring structure of the utility model;

[0027] Figure 5 The utility model is a schematic diagram of the lithium battery explosion structure.

[0028] In the figure: 1. Device body; 2. Cover plate; 3. Buckle; 4. Temperature sensor; 5. Current and voltage monitor; 6. Display screen; 7. First dustproof net; 8. Second dustproof net; 9. Fan; 10. Frame; 11. Support plate; 12. Push rod; 13. First spring piece; 14. Second spring piece; 15. First displacement sensor; 16. Second displacement sensor; 17. Lithium battery pack. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1:

[0032] A monitoring device for lithium battery installation fault alarm, such as Figure 3 and Figure 4 As shown, the device includes a main body 1 and a cover plate 2, wherein a plurality of first displacement sensors 15 and a plurality of second displacement sensors 16 are respectively installed on the upper part of the cover plate 2, a first spring piece 13 is fixed at the bottom of each of the first displacement sensors 15, and a second spring piece 14 is fixed at the bottom of each of the second displacement sensors 16, the first displacement sensors 15 and the second displacement sensors 16 receive the displacement motion of the first spring piece 13 and the second spring piece 14, and convert it into an electrical signal for output; the first spring piece 13 and the second spring piece 14 are vertically distributed, the second spring piece 14 is located above the first spring piece 13, the first spring piece 13 and the second spring piece 14 are both made of spring steel material, a plurality of abutment rods 12 are arranged at the bottom of each of the first spring pieces 13 and the second spring piece 14, the abutment rods 12 abut against a lithium battery pack 17, and the lithium battery pack 17 will lift up the two abutment rods 12 at the top thereof, so that the first spring pieces 13 and the second spring pieces 14 at the top of the two abutment rods 12 are bent and deformed under force.

[0033] See also Figure 1-Figure 5 In the above embodiment, the cover plate 2 is connected to the top of the device body 1, a buckle 3 is connected above the outer surface of the device body 1, a skeleton 10 is installed inside the device body 1, and multiple support plates 11 and lithium battery packs 17 are respectively arranged inside the skeleton 10. A current and voltage monitor 5 is installed on one side of the device body 1, and a display screen 6 is installed on one side of the current and voltage monitor 5. Temperature sensors 4 are installed on both sides of the cover plate 2. When the lithium battery pack 17 is charging and discharging, the temperature inside the device body 1 is monitored by the temperature sensor 4, and the current and voltage output and input of the lithium battery pack 17 are monitored by the current and voltage monitor 5, and various information is displayed on the display screen 6 for easy viewing by the staff.

[0034] Embodiment 2:

[0035] On the basis of the above-mentioned embodiment 1, in order to reduce the occurrence of thermal runaway and explosion caused by the lithium battery pack 17 during the charging and discharging process.

[0036] See also Figure 1 and Figure 2 In the above embodiment, a fan 9 is installed at the lower part of the device body 1, a second dustproof net 8 is installed at the bottom of the device body 1, a first dustproof net 7 is installed on the top of the cover plate 2, the support plate 11 is an aluminum alloy plate, and there are gaps between the multiple support plates 11. The fan 9 generates airflow when it works, and the airflow enters the device body 1 from the second dustproof net 8. Then the airflow passes through the gaps between the multiple support plates 11 and is discharged from the first dustproof net 7. The lithium battery pack 17 transfers heat to the support plate 11 during charging and discharging, so that the airflow takes away the heat when passing through the gaps between the multiple support plates 11 to achieve the effect of dissipating heat for the lithium battery pack 17.

[0037] The implementation principle of the utility model is as follows: first, when the lithium battery pack 17 is charged and discharged, the temperature in the device body 1 is monitored by the temperature sensor 4, and the current and voltage output and input of the lithium battery pack 17 are monitored by the current and voltage monitor 5, and various information is displayed on the display screen 6 for the convenience of the staff to view;

[0038] At the same time, the fan 9 generates airflow, which enters the device body 1 from the second dustproof net 8, and then passes through the gaps between the multiple support plates 11 and is discharged from the first dustproof net 7. The lithium battery pack 17 transfers heat to the support plate 11 during charging and discharging, so that the airflow takes away the heat when passing through the gaps between the multiple support plates 11, thereby achieving the effect of cooling the lithium battery pack 17;

[0039] When a lithium battery pack 17 bulges, the lithium battery pack 17 will lift up the two supporting rods 12 on its top, causing the first spring piece 13 and the second spring piece 14 on the top of the two supporting rods 12 to bend and deform due to the force, so that the corresponding first displacement sensor 15 and the second displacement sensor 16 receive the displacement movement and convert it into an electrical signal output. This monitoring method only requires two displacement sensors to monitor several lithium battery packs 17 at the same time, reducing costs, energy consumption and the number of signal lines. For positioning, it is only necessary to find the intersection of the corresponding first spring piece 13 and the second spring piece 14 to find the bulging lithium battery pack 17.

[0040] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A monitoring device for lithium battery installation fault alarm, comprising a device body (1) and a cover plate (2), characterized in that: A plurality of first displacement sensors (15) and a plurality of second displacement sensors (16) are respectively installed on the upper part of the cover plate (2), and a first spring sheet (13) is fixed at the bottom of each of the first displacement sensors (15), a second spring sheet (14) is fixed at the bottom of each of the second displacement sensors (16), and a plurality of stop rods (12) are arranged at the bottom of each of the first spring sheets (13) and the second spring sheets (14).

2. The monitoring device for lithium battery installation fault alarm according to claim 1, characterized in that: The first elastic sheet (13) and the second elastic sheet (14) are vertically distributed, and the second elastic sheet (14) is located above the first elastic sheet (13).

3. The monitoring device for lithium battery installation fault alarm according to claim 2, characterized in that: The first spring piece (13) and the second spring piece (14) are both made of spring steel material.

4. The monitoring device for lithium battery installation fault alarm according to claim 1, characterized in that: The cover plate (2) is connected to the top of the device body (1), a buckle (3) is connected above the outer surface of the device body (1), a frame (10) is installed inside the device body (1), and a plurality of support plates (11) and lithium battery packs (17) are respectively arranged inside the frame (10).

5. The monitoring device for lithium battery installation fault alarm according to claim 4, characterized in that: The abutment rod (12) abuts against the lithium battery pack (17).

6. The monitoring device for lithium battery installation fault alarm according to claim 4, characterized in that: A current and voltage monitor (5) is installed on one side of the device body (1), and a display screen (6) is installed on one side of the current and voltage monitor (5), and temperature sensors (4) are installed on both sides of the cover plate (2).

7. The monitoring device for lithium battery installation fault alarm according to claim 4, characterized in that: A fan (9) is installed at the lower part of the device body (1), a second dustproof net (8) is installed at the bottom of the device body (1), and a first dustproof net (7) is installed at the top of the cover plate (2).

8. The monitoring device for lithium battery installation fault alarm according to claim 7, characterized in that: The support plates (11) are aluminum alloy plates, and gaps exist between the plurality of support plates (11).

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