KR101126875B1 - Apparatus and method for detecting impact - Google Patents

Abstract

The present invention discloses an apparatus and method for detecting a shock. An apparatus for detecting shock according to the present invention includes a transparent cylindrical body having a guide space through which a movable body can linearly move; A movable body accommodated in the cylindrical body to move along the guide space when shock is detected; A fixed body provided at an upper end of the cylindrical body to collide with the movable body when an impact of more than a reference shock is detected; And a color expression material contained in the movable body or the fixed body to express a predetermined color inside the cylindrical body when crushed.

Shock, sensing, colorful

Description

Apparatus and method for detecting impact

The present invention relates to an apparatus and a method for detecting an impact, and more particularly, to an apparatus and a method for attaching a battery pack or the like and detecting the impact when a shock is applied.

Various devices or components, including electronics, are manufactured to have a certain level of durability that can not be broken under any degree of impact. For example, the product may be made of a material that is highly durable, or additional complementary devices such as shock absorbers may be added. However, despite these efforts, due to manufacturing costs or technical limitations, it is very difficult to be perfectly durable against impact. Therefore, the device or the product may be damaged if an impact beyond the durability of the device or the product is applied.

The damage caused by the impact may also be applied to the battery pack. In recent years, as the demand for portable electronic products such as laptops, video cameras, mobile phones, and the like is rapidly increasing, and development of energy storage batteries, robots, satellites, and the like is in earnest, high-performance battery packs capable of repeatedly charging and discharging are available. Research is actively being conducted.

On the other hand, as carbon energy is gradually depleted and environmental interest is increasing recently, demand for hybrid and electric vehicles is increasing worldwide, including the United States, Europe, Japan, and Korea. It is a good response for many consumers because of its high fuel efficiency and the fact that it does not emit or reduce pollutants. In particular, more attention is focused on batteries, which are the most essential components of such hybrid or electric vehicles.

However, in the case of a vehicle battery used in such a hybrid car or an electric vehicle, a problem of damage due to shock is emerging as an important issue due to the nature of being mounted on a vehicle running on a road unlike a battery used in general portable electronic products. In addition, manufacturers of battery pack products and manufacturers of finished vehicles are generally different from each other, and the battery packs may be impacted in the process of being transferred from battery pack manufacturers to finished vehicle manufacturers. For example, a storm may occur during the transport of the battery pack to the ship, and the battery pack may be shocked due to the shaking of the ship. In addition, the battery pack may also be impacted in the process of being assembled into a complete vehicle.

As described above, when the battery pack is damaged due to an impact during transportation, assembly, use, etc., it is difficult to properly detect the damage of the battery pack unless a separate test is performed using a test apparatus. Therefore, it is possible to know the breakage of the battery pack only after the damaged battery pack is mounted or operated in the vehicle, resulting in a lot of time and cost. In addition, you may miss the time to service or replace the battery pack because you are not aware that the shock has been applied to the battery pack while driving the vehicle. Of course, all battery packs can be tested for damage with a test device, but it is difficult to implement such a situation in terms of time and cost. In addition, even when detecting that the battery pack is broken, it is difficult to properly determine the cause of the battery pack due to what cause.

In order to solve this problem, various shock detection devices have been developed in the related art which can be mounted on various components or devices, such as a battery pack, to detect shock. However, the conventional shock sensing device has many methods of detecting an electric shock by generating an electrical signal, which is complicated in structure, expensive, and often requires a separate display device or a test device.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a shock sensing device and method that makes it easy to visually see whether a shock is applied to a product or a part that is damaged enough. do.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

An apparatus for detecting an impact according to the present invention for achieving the above object includes a transparent cylindrical body having a guide space in which the movable body can linearly move; A movable body accommodated in the cylindrical body to move along the guide space when shock is detected; A fixed body provided at an upper end of the cylindrical body to collide with the movable body when an impact of more than a reference shock is detected; And a color expression material contained in the movable body or the fixed body to express a predetermined color inside the cylindrical body when crushed.

In addition, the method for detecting an impact according to the present invention for achieving the above object, a transparent cylindrical body having a guide space for the movable body to move linearly, a mobile body moving along the guide space therein and Providing a fixed body provided on an upper end of the cylindrical body to collide with the movable body when an impact of more than a reference shock is detected; Applying a shock to move the movable body along the guide space; Crushing the movable body or the fixed body when the movable body collides with the fixed body; And expressing a predetermined color in the cylindrical body by the color expression material contained in the crushed mobile body or the fixed body.

According to the present invention, it is possible to visually easily check whether a shock is applied to the extent that the product or parts are damaged during transportation, assembly or use. In addition, the structure is simple and inexpensive since no electrical signal is required for shock detection.

For example, the present invention can be easily applied to a vehicle battery pack. Therefore, it is easy to check whether a shock above the standard is applied to the battery pack by detecting an impact generated during the transport of the battery pack through a vehicle or a vehicle, or an impact generated during the assembly of the battery pack to the vehicle. have. In addition, the battery pack may be mounted on a vehicle to check whether an impact exceeding a reference level is applied during use.

Therefore, it is necessary to test whether the battery pack to which the shock is applied above the standard is broken, so that the battery pack damaged by the shock can be sorted out quickly and efficiently. In addition, it is easy to analyze whether the cause of the breakage is in shock by checking whether a shock above the reference level is detected for the damaged battery pack. In addition, it is possible to easily identify when the battery pack needs to be repaired or replaced by identifying a high impact applied to the battery pack while driving the vehicle.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a view schematically showing the configuration and operation of the shock detection apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the shock sensing device according to the present invention includes a cylindrical body 100, a mobile body 200, a fixed body 300, and a color expression material 400.

The cylindrical body 100 has a guide space in which an object accommodated therein, that is, the moving body 200 can linearly move. Then, the movable body 200 moves along this guide space. Therefore, by adjusting the moving distance of the moving object 200 through the change in the length of the guide space, it is possible to adjust the shock detection level of the shock detection device. On the other hand, the cylindrical body 100 is not limited to its specific shape if it is provided with a guide space for moving the movable body 200 therein. For example, the cylindrical body 100 may be implemented in a cylindrical shape, as well as a angular prism such as a triangular pillar or a square pillar, and can be implemented in various forms in addition to those skilled in the art.

The material of the liquid state may be accommodated in the cylindrical body 100. In this case, the movable body 200 moves in a liquid substance, that is, a fluid. As such, when a liquid substance is accommodated in the cylindrical body 100, the degree of movement of the movable body 200 may be adjusted by varying the viscosity of the liquid substance. That is, the distance that the moving body 200 moves even with the same amount of impact may vary. Therefore, adjustment of the shock detection level is possible. In addition, if a liquid substance is accommodated in the cylindrical body 100 as described above, since the color may be expressed through the liquid substance, the color expression state may be confirmed throughout the cylindrical body 100. Therefore, the color expression state can be easily understood at a glance.

The cylindrical body 100 should be made of a transparent material because it should check the color change state, that is, the color change state inside due to the shock detection. In this case, the entire cylindrical body 100 does not necessarily need to be transparent, and only a part of the cylindrical body 100 may be transparent as long as the state of the internal color change can be confirmed. In addition, the transparency does not necessarily need to be 100% and only needs to be transparent enough to confirm the change in the internal state. Therefore, the material configuration or shape of the cylindrical body 100 may be implemented in various ways.

However, since the cylindrical body 100 is for detecting an impact applied to an object, the cylindrical body 100 should have a durability of a certain degree or more. For example, when the shock sensing device according to the present invention is mounted on a battery pack, it must have durability sufficient to withstand the shock that may be applied to the battery pack. Otherwise, when a shock is applied to the battery pack, if the shock detection device is also damaged, the function itself as a shock detection device will be lost.

The movable body 200 is accommodated in the cylindrical body 100 and moves along the guide space when shock is detected.

When the shock is not applied to the shock sensing device according to the present invention, as shown in Figure 1 (a), the moving body 200 is present in the lower portion of the cylindrical body 100 by gravity. If the liquid substance is accommodated in the cylindrical body 100, the movable body 200 should be configured to have an appropriate weight so that the liquid does not rise by buoyancy alone without external impact.

When an impact is applied to the shock sensing device according to the present invention, as shown in FIG. 1 (b), the movable body 200 moves upward along the guide space. At this time, if the degree of impact applied does not reach a predetermined predetermined level, the movable body 200 will rise to some extent and will return to the lower portion of the cylindrical body 100 by gravity without colliding with the fixed body 300. . However, if the degree of impact applied is more than a predetermined level, that is, if the impact is applied to the shock level or more to detect the moving object 200 will rise and eventually collide with the fixture 300.

The fixture 300, as shown in Figure 1 (a), is provided on the upper end of the cylindrical body 100. Thus, when an impact of more than a reference shock is sensed, the movable body 200 collides with the movable body 200 by rising of the movable body 200.

When the movable body 200 and the fixed body 300 collide, at least one of the movable body 200 and the fixed body 300 is configured to be crushed by the collision. 1 illustrates a configuration in which the fixture 300 is crushed.

Referring to FIG. 1, the fixture 300 to be crushed may be glass. For example, the fixture 300 may be manufactured in the form of an ampoule. Here, the ampoule is a sealed glass container, and means that a certain solution is included. In the present invention, the color-expressing material 400 may be accommodated in the ampoule.

In addition, the fixture 300 crushed in Figure 1 may be made of a polymer material. For example, butadiene rubber, polyethylene, polypropylene, polyurethane, or the like may be used.

However, the present invention is not limited by the specific material or shape of the fixture 300 to be crushed in this way, and various materials or shapes may be used as long as they can be crushed by collision. In addition, the impact detection level may be adjusted by selecting the material and shape of the fixture 300 to be crushed in this way.

On the other hand, the movable body 200 which is not crushed in Figure 1 is preferably composed of a shape and material enough to crush the fixed body 300 that collides with itself. Therefore, the hardness is higher than the fixture 300, it is good to have a sharp shape. For example, it may be made of metal, such as a nail, and may have a sharp tip.

As such, when any one is crushed by colliding with the movable body 200 and the fixed body 300, the color-expressing material 400 may express color inside the cylindrical body 100.

The color expression substance 400 is accommodated in the crushed mobile body 200 or the fixed body 300. Therefore, when no shock is detected above the reference shock, the shock sensing device may display the color of the cylindrical body 100 itself or a material contained therein. For example, when water is accommodated in the cylindrical body 100, the cylindrical body 100 may display a colorless transparent color. However, when the movable body 200 or the fixed body 300 is crushed due to the impact of the reference shock or more, the color expression material 400 is leaked to the outside and the color is expressed inside the cylindrical body 100.

Referring to FIG. 1, in a normal state in which an impact above a reference level is not applied, as shown in FIGS. 1A and 1B, the inside of the cylindrical body 100 is displayed in yellow, and a color-expressing material having a red color ( 400 is accommodated only inside the fixture 300. However, when the fixture 300 is crushed due to the impact of the reference or higher, as shown in FIG. 1 (c), the color-expressing material 400 inside the fixture 300 is leaked to red the interior of the cylindrical body 100. To change. Therefore, it is easy to determine that the shock of the reference or more is detected through the color change inside the cylindrical body 100 from yellow to red. Meanwhile, in the embodiment of FIG. 1, the red color of the color expression material 400 or the yellow color inside the cylindrical body 100 is just one example of color, and various color configurations are apparent to those skilled in the art.

In addition, the material composition or the way of expressing the color of the color expression material 400 may be implemented in various forms.

For example, as illustrated in FIG. 1C, the color expression material 400 may express colors by diffusing its color into a solution contained in the cylindrical body 100. For example, a blue dye is contained in the fixture 300, and a colorless transparent liquid such as water may be contained in the cylindrical body 100. In this case, when the fixture 300 is crushed, the blue dye contained therein flows out and diffuses into the transparent liquid inside the cylindrical body 100, and eventually the inside of the cylindrical body 100 is expressed in blue.

As another example, the color expression material 400 may express color by reacting with a material contained in the cylindrical body 100. For example, when the fixture 300 is crushed as in the embodiment of FIG. 1, the phenolphthalein solution is accommodated in the fixture 300, and a basic solution such as NaOH or KOH is contained in the cylindrical body 100. Can be. At this time, when the fixture 300 is crushed, the phenolphthalein solution contained therein flows out into the basic solution in the cylindrical body 100, and the inside of the cylindrical body 100 is expressed in red. In this case, the phenolphthalein solution itself, which is the color expression material 400, is colorless but meets the basic solution to express red color. Or, the iodine solution is accommodated inside the fixture 300 as a color expression material 400, the starch solution is accommodated inside the cylindrical body 100, when the fixture 300 is broken, iodine and starch react Cylindrical body 100 may be expressed in purple. As such, the color expression material 400 may express colors in combination with various materials.

2 is a view schematically showing the configuration and operation of the shock detection apparatus according to another embodiment of the present invention.

Referring to FIG. 2 (a), as in FIG. 1 (a), the fixed body 300 is provided at the upper end of the cylindrical body 100, and the movable body 200 is accommodated in the lower portion of the cylindrical body 100. It is. Then, when an impact is applied to the impact sensing device, the movable body 200 moves upward along the guide space of the cylindrical body 100 as shown in FIG. If the impact applied to the impact sensing device is a shock higher than the reference, the moving body 200 and the fixed body 300 is to collide. 2 illustrates a structure in which the movable body 200 is crushed when the movable body 200 and the fixed body 300 collide with each other unlike FIG. 1. Therefore, when the color expressing material 400 is accommodated inside the moving body 200 and the moving body 200 is crushed, the color expressing material 400 inside the moving body 200 is cylindrical as shown in FIG. 2 (c). 100 expresses the color inside. On the other hand, in Figure 2 (c) the color expression material 400 is shown in red, the inside of the cylindrical body 100 before the impact is shown in yellow, this is also just one embodiment as in Figure 1 (c) Various color schemes are possible.

In the embodiment of FIG. 2, unlike the embodiment of FIG. 1, since the movable body 200 is crushed, the description of the material or shape of the fixed body 300 crushed in FIG. It can be applied to the mobile 200 to be crushed in. For example, in the embodiment of FIG. 2, the movable body 200 may be made of glass or a polymer material. In addition, the color expression material 400 may be accommodated in the moving body 200. In addition, the material or shape of the movable body 200 described in FIG. 1 may be applied to the fixed body 300 in the embodiment of FIG. 2. For example, in the embodiment of FIG. 2, the fixture 300 is made of a material having a higher hardness than the movable body 200, and may have a sharp shape.

On the other hand, in the embodiment of Figures 1 and 2 shows a configuration in which the fixed body 300 or the moving body 200 is crushed, it is also possible to configure a structure in which both the fixed body 300 and the moving body 200 is crushed.

Preferably, the fixing body 300 is configured to be movable up and down at the upper end of the cylindrical body (100). In this case, the impact level to be detected can be determined in advance by adjusting the vertical position of the fixture 300. Therefore, even if the impact detection device according to the present invention is equipped with a different product or mounting form, the impact level can be appropriately adjusted according to the situation.

3 is a view showing an embodiment of the fixture 300 configured to be movable up and down at the upper end of the cylindrical body 100.

Referring to FIG. 3, a screw-like groove is provided in the coupling portion 310 of the fixed body 300 coupled to the cylindrical body 100. At this time, when the fixture 300 is rotated in the direction of the arrow as shown in Fig. 3 (a), as shown in Fig. 3 (b), the fixture 300 is moved along the spiral groove to fix the fixture. 300 may be positioned upwards. In this state, when the fixing body 300 is rotated in the opposite direction, the fixing body 300 may be positioned downward again. Since the distance between the movable body 200 and the stationary body 300 is greater in FIG. 3 (b) than in FIG. 3 (a), the movable body 200 is farther from FIG. 3 (b) than in FIG. 3 (a). It must move to collide with the fixture 300. Accordingly, it can be said that the impact detection level of FIG. 3 (b) which requires more impact for collision between the movable body 200 and the fixed body 300 is higher than that of FIG. 3 (a). In this way, by changing the position of the fixing body 300 in the upper end of the cylindrical body 100, it is possible to adjust the impact detection level.

On the other hand, the position movement method through the spiral groove of the fixture 300 shown in FIG. 3 is just an example, it may be implemented in various ways.

The shock sensing device according to the present invention can be mounted on various articles requiring shock sensing. Also, the mounting position can be mounted anywhere on such an article. If the battery pack is mounted on a battery pack such as a vehicle battery pack, the shock detection device may be mounted on the front or side surface of the battery pack. Therefore, the inspector can easily check whether the battery pack has been impacted by a certain degree or more during transportation, assembly or use of the battery pack.

4 is a flowchart schematically illustrating a shock detection method according to an embodiment of the present invention.

As shown in FIG. 4, first, a cylindrical body having a guide space through which the movable body can linearly move, a movable body moving along the guide space therein, and an upper end of the cylindrical body are provided to detect an impact greater than a reference impact. It provides a fixed body colliding with the moving body (S110). Here, the fixture is preferably configured to be movable up and down at the upper end of the cylindrical body. In addition, a liquid substance may be contained inside the cylindrical body. Next, when an impact is applied (S120), the movable body moves along the guide space (S130). At this time, when the movable body and the fixed body collide (S140), the movable body or the fixed body is crushed (S150). Here, the movable body or the fixed body to be crushed may be made of glass or a polymer material. Then, the color expression material contained in the crushed mobile body or the fixed body expresses a predetermined color inside the cylindrical body (S160). In this case, the color expression material may react with the material contained in the cylindrical body to express the color.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a view schematically showing the configuration and operation of the shock detection apparatus according to an embodiment of the present invention.

2 is a view schematically showing the configuration and operation of the shock detection apparatus according to another embodiment of the present invention.

Figure 3 is a view showing an embodiment of a fixture configured to be movable up and down at the upper end of the cylindrical body.

4 is a flowchart schematically illustrating a shock detection method according to an embodiment of the present invention.

Claims (10)

In the shock sensing device, A transparent cylindrical body having a guide space through which the movable body can linearly move; A movable body accommodated in the cylindrical body to move along the guide space when shock is detected; A fixed body provided at an upper end of the cylindrical body to collide with the movable body when an impact of more than a reference shock is detected; And It is accommodated inside the movable body or the fixed body, and when the movable body or the fixed body is crushed due to the collision of the movable body and the fixed body, it flows out of the movable body or the fixed body to provide a predetermined color inside the cylindrical body. Color expression substances to express; Shock detection device comprising a. The method of claim 1, The fixture is shock-sensing device, characterized in that configured to change the position at the upper end of the cylindrical body. The method of claim 1, The moving object that is crushed when the mobile body is crushed or the fixed body that is crushed when the fixed body is crushed, the shock sensing device, characterized in that made of glass or polymer material. The method of claim 1, Shock sensing device, characterized in that the liquid material is contained in the cylindrical body. The method of claim 1, The color expression material, the shock sensing device, characterized in that for expressing the color by reacting with the material contained inside the cylindrical body. In the method of detecting a shock, A transparent cylindrical body having a guide space capable of linear movement of the movable body, a movable body moving along the guide space in the cylindrical body, and an upper end of the cylindrical body, and detecting the impact above the reference shock and the movable body; Providing a colliding fixture; Applying a shock to move the movable body along the guide space; Crushing the movable body or the fixed body when the movable body collides with the fixed body; And A color expression material contained in the crushed mobile body or the fixed body is discharged to the outside of the mobile body or the fixed body to express a predetermined color inside the cylindrical body; Shock detection method comprising a. The method of claim 6, The fixture is shock detection method, characterized in that configured to change the position at the upper end of the cylindrical body. The method of claim 6, The movable body that is crushed when the mobile body is crushed or the fixed body that is crushed when the fixed body is crushed, characterized in that the impact made of glass or polymer material. The method of claim 6, Shock sensing method, characterized in that the material of the liquid state is accommodated in the cylindrical body. The method of claim 6, The color expression material is shock detection method, characterized in that for expressing the color in response to the material contained in the cylindrical body.

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