CN219406217U

CN219406217U - Auxiliary safety monitoring device for power battery

Info

Publication number: CN219406217U
Application number: CN202223376632.7U
Authority: CN
Inventors: 邵成峰; 祁长伟
Original assignee: Hangzhou Transportation Vocational High School
Current assignee: Hangzhou Transportation Vocational High School
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-07-25
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the technical field of new energy automobile batteries, in particular to an auxiliary safety monitoring device for a power battery, which consists of a battery pack, a vibration sensor, a bending and extrusion sensor, a smoke sensor, a control circuit board and a scratch detection circuit, wherein a battery shell is sleeved outside the battery pack, a bottom plate is fixedly arranged at the bottom of the battery pack, the bottom plate is fixedly connected with the battery shell, and the battery pack is arranged on the bottom plate and covered by the battery shell. This supplementary safety monitoring device of power battery can monitor battery package outside and inside condition in real time, to sporadic little collision or foreign matter striking etc. can in time judge whether the battery has unusually, can in time make the investigation of problem to the vehicle battery to this battery safety problem in avoiding driving.

Description

Auxiliary safety monitoring device for power battery

Technical Field

The utility model relates to the technical field of new energy automobile batteries, in particular to an auxiliary safety monitoring device for a power battery.

Background

With the continuous development of new energy automobiles, more and more new energy automobiles enter common people's life. In terms of general adjustment, the public has basically accepted new energy automobiles, but a small number of owners cannot accept the new energy automobiles, and the reasons for the inapplicability are mainly as follows: the charging time of the new energy automobile is much slower than that of the fuel oil automobile, the driving mileage is short, etc., but the most critical is the safety of the new energy automobile, such as high voltage electric leakage, collision, fire, etc.

At present, active safety monitoring (such as electric leakage, high temperature, high voltage, balance and the like) of a power battery of a new energy automobile is mature, but sporadic safety monitoring (such as collision point and impact point degree, extrusion of the interior or the shell of a battery pack, serious scratches of a bottom plate, smoke early warning and the like) in the use process is not perfect. For example, the crash safety monitoring simply receives a crash signal of the vehicle body airbag to shut off the high-voltage system, and cannot monitor the degree of damage to the battery pack caused by such things as "flying stones", "ground foreign matter impact", and "scratch" from the bottom, and cannot inform or warn the vehicle occupant, thereby causing more serious loss. Therefore, an sporadic safety monitoring device of the power battery needs to be designed so as to solve the sporadic driving safety problem.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides an auxiliary safety monitoring device for a power battery. The device has and can monitor battery package outside and inside condition in real time, to sporadic little collision or foreign matter striking etc. can in time judge whether the battery has unusually, can in time make the investigation of problem to the vehicle battery to the battery safety problem in this avoiding driving etc. advantage.

The technical scheme adopted by the utility model for realizing the technical purpose is as follows: the auxiliary safety monitoring device for the power battery comprises a battery pack, a vibration sensor, a bending and extrusion sensor, a smoke sensor, a control circuit board and a scratch detection circuit;

the battery pack is externally sleeved with a battery shell, the bottom of the battery pack is fixedly provided with a bottom plate, the bottom plate is fixedly connected with the battery shell, and the battery pack is arranged on the bottom plate and covered by the battery shell.

The vibration sensor and the scratch detection circuit are arranged on the bottom plate, the bending extrusion sensor is arranged in the battery pack, and the smoke sensor is arranged at the exhaust port of the battery shell;

and the vibration sensor, the bending extrusion sensor, the smoke sensor and the scratch detection circuit are electrically connected with the control circuit board.

The battery pack and the surrounding environment of the battery are monitored through the vibration sensor, the scratch detection circuit, the bending and extrusion sensor, the smoke sensor and the control circuit board.

Preferably, the vibration sensor is fixedly arranged around the bottom plate, the vibration sensor is arranged around the bottom plate so as to expand the detection range, the detection of the battery pack is facilitated, and when the vibration exceeds a set threshold value, a warning is sent out.

Preferably, the transverse layout of the scratch detection circuit is on the other side of the bottom plate, the layout direction of the scratch detection circuit is perpendicular to the running direction of the vehicle, and the scratch detection circuit is easier to cut off when the bottom plate is scratched in the running process of the vehicle, so that a warning is sent out, and the battery pack is more beneficial to monitoring.

Preferably, the bottom plate is transversely provided with a wire slot, the scratch detection circuit is fixed in the wire slot, the scratch detection circuit can be conveniently installed through the wire slot, and meanwhile, the scratch detection circuit is prevented from being exposed outside, so that unnecessary circuit breaking of the scratch detection circuit is prevented, and warning is sent out.

Preferably, the battery pack is composed of a plurality of battery packs, the bending extrusion sensor is fixed among the battery packs, when the battery packs are extruded, the bending extrusion sensor is extruded, and when the pressure exceeds a set threshold value, a warning is sent out.

Preferably, the control circuit board is connected with a warning device, the warning device comprises an LED lamp and a loudspeaker, and the warning device is used for visually and audibly notifying.

Preferably, mounting plates are arranged at two ends of the bottom plate along the running direction of the vehicle, and lock holes are formed in the mounting plates; connect the mounting panel on the car through the lockhole to connect the bottom plate, and then make whole device connect.

A sliding clamping block is fixedly connected to one side of the mounting plate and is connected to the inside of the bottom plate in a sliding manner, and is clamped in the inside of the bottom plate at the same time, the sliding fixture block is internally connected with a bidirectional screw rod in a threaded manner, one end of the bidirectional screw rod is rotatably connected to the inside of the bottom plate, and the other end of the bidirectional screw rod is fixedly connected with a rotating handle outside the bottom plate. The bidirectional screw rod is enabled to rotate through the rotating handle, and the sliding clamping blocks are in threaded connection with the bidirectional screw rod and are clamped in the bottom plate in a sliding mode, so that the two groups of sliding clamping blocks can move away from each other or close to each other in the bottom plate, and the two groups of mounting plates can be adjusted in mounting distance.

Preferably, the sliding clamping block is correspondingly provided with a sliding groove, the sliding groove is formed in the bottom plate, one end of the sliding groove is sealed by a sealing plate, the bidirectional screw rod penetrates through the sealing plate and is fixedly connected with the rotating handle, and the bidirectional screw rod is in rotating connection with the sealing plate. The spout is used for placing the slip fixture block, makes spout one end can conveniently open through the shrouding to the convenience carries out the fluting processing with the spout, also conveniently connects slip fixture block and two-way lead screw.

Compared with the prior art, the utility model has the beneficial effects that: this supplementary safety monitoring device of power battery can monitor battery package outside and inside condition in real time, to sporadic little collision or foreign matter striking etc. can in time judge whether the battery has unusually, can in time make the investigation of problem to the vehicle battery to this battery safety problem in avoiding driving.

This supplementary safety monitoring device of power battery monitors the damage degree when the battery package collides through vibration sensor, can detect the inside extrusion condition of battery package through crooked extrusion sensor, again with the scratch detection circuit through the mode setting of fluting wiring injecting glue at the bottom plate, judge the scratch depth to reach battery package damage, the warning that the group battery smog takes place when the rethread smoke transducer has been accomplished reminds safety.

Drawings

Fig. 1 is a schematic top cross-sectional view of a power cell auxiliary safety monitoring device.

Fig. 2 is a schematic bottom view of the power battery auxiliary safety monitoring device.

Fig. 3 is a schematic diagram of signal connection structures of a vibration sensor, a bending and extrusion sensor, a smoke sensor, a scratch detection circuit, a control circuit board and a warning device.

Fig. 4 is a schematic front view of the mounting plate and the base plate and their internal components.

Wherein:

1-a battery housing; 2-battery pack; 3-a bottom plate; 4-a vibration sensor; 5-bending and squeezing the sensor; 6-smoke sensor; 7-a control circuit board; 8-warning device; 9-scratch detection lines; 10-wire grooves; 11-mounting plates; 12-sliding grooves; 13-sliding a clamping block; 14-a bidirectional screw rod; 15-sealing plates; 16-turning the handle.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

In the description of the present utility model, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships in which the inventive product is conventionally placed in use, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1:

as shown in fig. 1-3, a power battery auxiliary safety monitoring device comprises a battery pack 2, a vibration sensor 4, a bending extrusion sensor 5, a smoke sensor 6, a control circuit board 7 and a scratch detection circuit 9; the battery pack 2 is externally sleeved with a battery shell 1, a bottom plate 3 is fixedly arranged at the bottom of the battery pack 2, the bottom plate 3 is fixedly connected with the battery shell 1, and the battery pack 2 is arranged on the bottom plate 3 and covered by the battery shell 1.

The vibration sensor 4 and the scratch detection circuit 9 are both arranged on the bottom plate 3, the bending extrusion sensor 5 is arranged in the battery pack 2, and the smoke sensor 6 is arranged at the exhaust port of the battery shell 1; the vibration sensor 4, the bending and extrusion sensor 5, the smoke sensor 6 and the scratch detection circuit 9 are electrically connected with the control circuit board 7. The control circuit board 7 is connected with a warning device 8, the warning device 8 comprises an LED lamp and a loudspeaker, and the warning device 8 is used for visually and audibly warning.

The battery pack 1 and the surrounding environment of the battery are monitored through the vibration sensor 4, the scratch detection circuit 9, the bending extrusion sensor 5, the smoke sensor 6 and the control circuit board 7, and the warning is carried out through the warning device 8.

Further, the vibration sensor 4 is fixedly installed around the bottom plate 3, the vibration sensor 4 is installed around the bottom plate so as to expand the detection range, the detection of the battery pack 2 is facilitated, and when vibration exceeds a set threshold value, a warning is sent out.

The scratch detection circuit 9 is transversely distributed on the other side of the bottom plate 3, the distribution direction of the scratch detection circuit 9 is perpendicular to the running direction of the vehicle, the scratch detection circuit 9 is arranged to be a conductive wire or a conductive paint, the scratch detection circuit 9 is perpendicular to the running direction of the vehicle, and in the running process of the vehicle, when the bottom plate 3 is scratched, the scratch detection circuit 9 is easier to cut off, so that early warning is sent, and the battery pack 2 is more beneficial to monitoring.

The wire casing 10 has transversely been seted up to the bottom plate 3, and scratch detection circuitry 9 is fixed in wire casing 10, can conveniently install scratch detection circuitry 9 through wire casing 10, avoids scratch detection circuitry 9 to expose in the outside simultaneously to avoid scratch detection circuitry 9 to appear unnecessary circuit breaking, lead to sending out the warning.

The battery pack 2 is composed of a plurality of battery packs, the bending extrusion sensors 5 are fixed between the battery packs, the bending extrusion sensors 5 are extrusion bending strain gauges, when the battery packs are extruded, the bending extrusion sensors 5 are extruded, and when the pressure exceeds a set threshold value, a warning is sent.

Also, when smoke is present at the exhaust port of the battery case 1, the smoke sensor 6 also gives a warning.

Further, in order to improve the monitoring capability, the vibration sensor 4 and the bending extrusion sensor 5 are selected from components with signal amplifiers, or are externally connected with an amplifying circuit (module) so as to realize more accurate monitoring.

The working principle of the auxiliary safety monitoring device of the power battery and the specific use flow are as follows: the vibration sensor 4 is arranged on the battery bottom plate 3 (around the guard plate), the bending extrusion sensor 5 (extrusion bending strain gauge) is arranged between battery packs in the battery pack 2 or on the battery bottom plate 3, when the battery packs are subjected to vibration and extrusion with the threshold value being exceeded, the vibration sensor is monitored through the control circuit board 7 and warned through the warning device 8, the scratch detection circuit 9 (conductive wires or conductive paint) is transversely arranged on the bottom plate 3 side by side, when scratches occur, the scratch detection circuit 9 (conductive wires or conductive paint) is naturally cut off or broken, so that warning is sent out, and when smoke is generated at the exhaust port of the battery shell 1, the smoke sensor 6 also sends out warning.

Example 2:

as shown in fig. 1-4, on the basis of the above embodiment, the auxiliary safety monitoring device for the power battery is provided with mounting plates 11 at two ends of a bottom plate 3 along the running direction of the vehicle, and locking holes are formed in the mounting plates 11; the mounting plate 11 is connected to the automobile through the lock hole, so that the bottom plate 3 is connected, and the whole device is connected.

In order to enable the installation distance between every two installation plates 11 to be adjustable, one side of each installation plate 11 is fixedly connected with a sliding clamping block 13, the sliding clamping block 13 is connected to the inside of the bottom plate 3 in a sliding mode, the sliding clamping block 13 is clamped in the inside of the bottom plate 3 at the same time, a bidirectional screw rod 14 is connected to the inner threads of the sliding clamping block 13, one end of the bidirectional screw rod 14 is connected to the inside of the bottom plate 3 in a rotating mode, and the other end of the bidirectional screw rod 14 is fixedly connected with a rotating handle 16 outside the bottom plate 3.

The sliding clamping block 13 is correspondingly provided with a sliding groove 12, the sliding groove 12 is formed in the bottom plate 3, one end of the sliding groove 12 is sealed through a sealing plate 15, the bidirectional screw rod 14 penetrates through the sealing plate 15 and is fixedly connected with a rotating handle 16, and the bidirectional screw rod 14 is in rotating connection with the sealing plate 15. The chute 12 is used for placing the sliding clamping block 13, and one end of the chute 12 can be conveniently opened through the sealing plate 15, so that the chute 12 is conveniently subjected to grooving processing, and the sliding clamping block 13 and the bidirectional screw rod 14 are also conveniently connected.

Specifically, the bidirectional screw rod 14 is rotated by rotating the handle 16, and the two sets of sliding clamping blocks 13 can move away from or close to each other in the bottom plate 3 due to the fact that the inside of the sliding clamping blocks 13 are in threaded connection with the bidirectional screw rod 14 and are slidably clamped in the bottom plate 3, so that the mounting distances of the two sets of mounting plates 11 can be adjusted.

The scheme in this embodiment may be selectively used in combination with the scheme in other embodiments.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures, equivalent flows or equivalent functional transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.

Claims

1. The utility model provides a supplementary safety monitoring device of power battery, comprises battery package (2), vibrations sensor (4), crooked extrusion sensor (5), smoke transducer (6), control circuit board (7) and mar detection circuit (9), its characterized in that: the battery pack (2) is externally sleeved with a battery shell (1), the bottom of the battery pack is fixedly provided with a bottom plate (3), and the bottom plate (3) is fixedly connected with the battery shell (1);

the vibration sensor (4) and the scratch detection circuit (9) are arranged on the bottom plate (3), the bending extrusion sensor (5) is arranged in the battery pack (2), and the smoke sensor (6) is arranged at the exhaust port of the battery shell (1);

the vibration sensor (4), the bending extrusion sensor (5), the smoke sensor (6) and the scratch detection circuit (9) are electrically connected with the control circuit board (7).

2. The power cell assisted safety monitoring device according to claim 1, wherein: the vibration sensor (4) is fixedly arranged around the bottom plate (3).

3. The power cell assisted safety monitoring device according to claim 2, wherein: the scratch detection circuit (9) is transversely distributed on the other side of the bottom plate (3), and the distribution direction of the scratch detection circuit (9) is perpendicular to the running direction of the vehicle.

4. A power cell assisted safety monitoring device according to claim 3, wherein: the base plate (3) is transversely provided with a wire groove (10), and the scratch detection circuit (9) is fixed in the wire groove (10).

5. The power cell assisted safety monitoring device according to claim 1, wherein: the battery pack (2) is composed of a plurality of battery packs, and the bending extrusion sensor (5) is fixed between the battery packs.

6. The power cell assisted safety monitoring device according to claim 1, wherein: the control circuit board (7) is connected with a warning device (8), and the warning device (8) comprises an LED lamp and a loudspeaker.

7. The power cell assisted safety monitoring device according to claim 1, wherein: mounting plates (11) are arranged at two ends of the bottom plate (3) along the running direction of the vehicle, and lock holes are formed in the mounting plates (11);

the utility model discloses a mounting panel, including mounting panel (11), mounting panel, bottom plate (3), mounting panel (11), mounting panel (11) one side fixedly connected with slip fixture block (13), slip fixture block (13) sliding connection in the inside of bottom plate (3), inside threaded connection of slip fixture block (13) has two-way lead screw (14), two-way lead screw (14) one end rotate connect in inside bottom plate (3), the other end is at bottom plate (3) outside fixedly connected with twist grip (16).

8. The power cell assisted safety monitoring device of claim 7, wherein: the sliding clamping block (13) is correspondingly provided with a sliding groove (12), the sliding groove (12) is formed in the bottom plate (3), one end of the sliding groove (12) is sealed by a sealing plate (15), the bidirectional screw rod (14) penetrates through the sealing plate (15) and is fixedly connected with the rotating handle (16), and the bidirectional screw rod (14) is in rotating connection with the sealing plate (15).