A housing deformation amount monitoring device for a storage battery

Abstract

The utility model discloses a shell deformation quantity monitoring devices of battery belongs to the battery safety field, including the storage of a plurality of batteries several battery storage shell, the lateral surface of battery storage shell is hollow structure all, and the top surface shell cover of battery storage shell adopts buckle structure connection. The utility model discloses compared with prior art's advantage lies in: this device when meeting the battery deformation bag, the teflon coating glass fiber cloth drives the slide plate and the factory character fixed plate to slide up and down, when the sliding amount exceeds the upper and lower width of the conductive sheet, and the power -on contact will be power off, thereby triggering the alarm on the battery shell, and the alarm will prompt the staff to replace the battery, thereby guaranteeing the safety of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery safety, specifically to a battery casing deformation monitoring device. Background Technology

[0002] In the current electric vehicle industry, batteries inevitably bulge due to internal pressure imbalance after prolonged use. If such bulging batteries are not dealt with in time, they may spontaneously combust or even explode. To ensure battery safety, a monitoring device is usually installed on the outside of the battery to monitor the deformation of the battery casing.

[0003] Existing battery casing deformation monitoring devices are usually installed in the battery storage casing where the batteries are stored. They determine the deformation of the battery by monitoring the change in the spacing between the outermost batteries. For example, the battery module detection device with application number 202421209350.4 determines the state of the battery by the overall change of the battery pack (the battery inside the electric vehicle is a battery pack, and the battery pack is composed of multiple batteries connected in series).

[0004] While this monitoring method can detect changes in the overall battery pack, it cannot accurately determine which batteries are bulging, and may even cause localized excessive bulging, without the external system being able to detect the battery's condition in a timely manner. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing battery casing deformation monitoring devices cannot monitor the status of each battery in a battery pack.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a battery casing deformation monitoring device, including several battery storage shells for storing multiple batteries, wherein the sides of the battery storage shells are all hollow structures, and the top cover of the battery storage shells is connected by a snap-fit ​​structure.

[0007] The battery storage case is provided with a battery bulging detection component on the left and right sides. The battery bulging detection component includes a Teflon-coated fiberglass cloth adhered to the inner wall of the bottom side of the battery storage case, a fixing rod horizontally adhered to the outer wall end of the Teflon-coated fiberglass cloth, a sliding plate adhered to the top surface of the Teflon-coated fiberglass cloth, a T-shaped fixing plate clamped to the outer wall end and the top surface end of the sliding plate, and several U-shaped spring pieces adhered between the horizontal bottom surface of the T-shaped fixing plate and the top surface of the sliding plate. The Teflon-coated fiberglass cloth is provided with a longitudinal groove for heat dissipation in the center.

[0008] The outer side of the skateboard is provided with a conductive sheet, and the longitudinal inner wall of the F-shaped fixing plate is provided with an electrical contact. The front side of the battery storage case is provided with an alarm connected to the electrical contact.

[0009] As an improvement, the outer wall of the front side of the battery storage case is provided with a wire channel for easy connection of the alarm wires.

[0010] As an improvement, the bottom surface of the battery storage case is provided with a barrier mesh.

[0011] As an improvement, the front and rear ends of the factory-shaped fixing plate are connected to the side posts of the battery storage case by bolts.

[0012] As an improvement, the alarm includes a flashing light and a voice alarm.

[0013] As an improvement, each of the battery storage cases is connected by a screw pin, and the screw pin passes through the side support rod of the battery storage case.

[0014] The advantages of this invention compared to the prior art are as follows: When the battery is deformed and bulging, the Teflon-coated fiberglass cloth drives the sliding plate and the fixed plate to slide up and down. When the sliding amount exceeds the upper and lower widths of the conductive sheet, the power contact will cut off the power, thereby triggering the alarm on the battery casing. The alarm will then prompt the staff to replace the battery, thus ensuring the safety of the battery pack. Attached Figure Description

[0015] Figure 1 This is a general structural diagram of a battery casing deformation monitoring device according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the overall structure of a battery casing deformation monitoring device according to this utility model.

[0017] Figure 3 yes Figure 2 Enlarged view of point A.

[0018] Figure 4 This is an exploded view of the overall structure of a battery casing deformation monitoring device according to this utility model.

[0019] Figure 5 yes Figure 4 Enlarged view of point B.

[0020] As shown in the figure: 1. Battery; 2. Battery housing; 21. Cable channel; 22. Barrier mesh; 3. Battery bulge monitoring component; 31. Teflon-coated fiberglass cloth; 311. Longitudinal groove; 32. Fixing rod; 33. Slide plate; 34. I-beam fixing plate; 35. U-shaped spring sheet; 36. Conductive sheet; 37. Power contact; 38. Alarm. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] As per the instruction manual Figure 1 , 2 As shown in Figures 3, 4, and 5, in order to facilitate the monitoring of each battery 1 in the battery pack, the battery 1 is stored in a battery storage case 2. The sides of the battery storage case 2 are all hollow, and the top cover of the battery storage case 2 is connected by a snap-fit ​​structure. The cover of the battery storage case 2 is a flip-top structure, and each battery storage case 2 is connected by a screw pin. The screw pin passes through the side support rod of the battery storage case 2. In order to ensure the safety of the battery storage case 2 and prevent water accumulation on the bottom, the bottom surface of the battery storage case 2 is provided with a barrier mesh 22.

[0023] To monitor the deformation state of the battery casing 1, battery bulge monitoring components 3 are provided on the left and right sides of the battery storage casing 2. The battery bulge monitoring components 3 include a Teflon-coated fiberglass cloth 31 adhered to the inner wall of the bottom side of the battery storage casing 2, a fixing rod 32 horizontally adhered to the outer wall end of the Teflon-coated fiberglass cloth 31, a sliding plate 33 adhered to the top surface of the Teflon-coated fiberglass cloth 31, a T-shaped fixing plate 34 clamped to the outer wall end and top surface end of the sliding plate 33, and several U-shaped spring plates 35 adhered between the horizontal bottom surface of the T-shaped fixing plate 34 and the top surface of the sliding plate 33. To ensure the heat dissipation effect of the battery 1, a longitudinal groove 311 for convenient heat dissipation is provided in the center of the Teflon-coated fiberglass cloth 31. The fixing rod 32 and the battery storage casing 2 are connected to the Teflon-coated fiberglass cloth 31 by high-temperature resistant adhesive. The function of the fixing rod 32 is to prevent the longitudinal groove 311 from sliding to both sides when encountering a bulge, thereby affecting the monitoring of the bulge state.

[0024] To facilitate the detection of bulges exceeding the acceptable range, a conductive sheet 36 is provided inside the outer side of the slide plate 33. The conductive sheet 36 is connected to the groove on the outer side of the slide plate 33 by adhesive. The slide plate 33 is made of non-conductive material. A power contact 37 is provided on the longitudinal inner wall of the F-shaped fixing plate 34. An alarm 38 connected to the power contact 37 is provided on the front side of the battery storage shell 2. The alarm 38 includes a flashing light and a voice alarm. To facilitate the connection of the wires connecting the power contact 37 and the alarm 38, a wire groove 21 is provided on the outer wall of the front side of the battery storage shell 2 to facilitate the passage of the wires connecting the alarm 38. When the power contact 37 is de-energized, the alarm 38 will trigger an alarm signal to provide both light and voice alarms.

[0025] The upper and lower ends of the U-shaped spring sheet 35 are glued to the inner top wall of the I-beam fixing plate 34 and the top surface of the slide plate 33 with strong adhesive or hot melt adhesive, so that they are integrated and the slide plate 33 will not fall. The front and rear sides of the vertical end of the I-beam fixing plate 34 have pin holes, and the bottom surface of the pin holes has screw holes. Then, the pin with threads on the bottom surface is passed through the side pin hole of the battery storage shell 2 and screwed into the screw hole of the vertical end of the I-beam fixing plate 34 for fixation.

[0026] In the specific implementation of this utility model, after placing the battery 1 into the battery storage shell 2, the cover of the battery storage shell 2 is closed. Then, the positive and negative terminals of the battery 1 are connected to the power supply terminal of the alarm 38 using wires. Finally, the battery storage shells 2 are connected in series using screw pins. When one of the batteries 1 is connected in series, the Teflon-coated fiberglass cloth 31 will deform due to the bulge. During the deformation, the sliding plate 33 will slide downwards, which will disconnect the conductive sheet 36 inside the sliding plate 33 from the positive and negative terminals of the energized contact 37, thereby de-energizing the energized contact 37. The state of the energized contact 37 after de-energization will be fed back through the wires connected to the alarm 38. After the energized contact 37 is de-energized, the alarm 38 will flash the indicator light and issue an alarm signal to remind the driver to replace the battery in time. The de-energization signal of the energized contact 37 needs to be continuously triggered for several seconds before the alarm signal is triggered, so as to avoid the situation of instantaneous alarm due to vibration.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A battery casing deformation monitoring device, comprising a plurality of battery storage cases (2) for storing multiple batteries (1), wherein the sides of the battery storage cases (2) are all hollow, and the top cover of the battery storage cases (2) is connected by a snap-fit ​​structure, characterized in that: The battery storage case (2) is provided with a battery bulging monitoring component (3) on its left and right sides. The battery bulging monitoring component (3) includes a Teflon-coated fiberglass cloth (31) glued to the inner wall of the bottom side of the battery storage case (2), a fixing rod (32) horizontally glued to the outer wall end of the Teflon-coated fiberglass cloth (31), a sliding plate (33) glued to the top surface of the Teflon-coated fiberglass cloth (31), a factory-shaped fixing plate (34) clamped to the outer wall end and the top end of the sliding plate (33), and several U-shaped spring pieces (35) glued between the horizontal bottom surface of the factory-shaped fixing plate (34) and the top surface of the sliding plate (33). The Teflon-coated fiberglass cloth (31) is provided with a longitudinal groove (311) for convenient heat dissipation in the center. The outer side of the slide plate (33) is provided with a conductive sheet (36), and the longitudinal inner wall of the fixed plate (34) is provided with an electrical contact (37). The front side of the battery storage case (2) is provided with an alarm (38) connected to the electrical contact (37).

2. The battery casing deformation monitoring device according to claim 1, characterized in that: The battery storage case (2) has a wire channel (21) on the outer wall of the front side to facilitate the passage of the wire connecting the alarm (38).

3. The battery casing deformation monitoring device according to claim 1, characterized in that: The bottom surface of the battery storage case (2) is provided with a barrier mesh (22).

4. The battery casing deformation monitoring device according to claim 1, characterized in that: The front and rear ends of the fixed plate (34) are connected to the side columns of the battery storage case (2) by bolts.

5. The battery casing deformation monitoring device according to claim 1, characterized in that: The alarm (38) includes a flashing light and a voice alarm.

6. The battery casing deformation monitoring device according to claim 1, characterized in that: Each of the battery storage cases (2) is connected by a screw pin, and the screw pin passes through the side support rod of the battery storage case (2).

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