WO2013155945A1

WO2013155945A1 - Shock-resistant protective shell of portable appliance

Info

Publication number: WO2013155945A1
Application number: PCT/CN2013/074134
Authority: WO
Inventors: 尹学军
Original assignee: 青岛科而泰环境控制技术有限公司
Priority date: 2012-04-17
Filing date: 2013-04-12
Publication date: 2013-10-24
Also published as: CN106604588A; CN106793622A; CN102638954A; CN106793622B; CN105960130B; CN106604588B; US20150108030A1; CN105960130A

Abstract

The present invention relates to a shock-resistant protective shell of a portable appliance, which includes a protective shell additionally arranged on the surface of a portable appliance and matching the shape of the portable appliance, characterized in that the corner part and/or the vicinity of the corner part of the protective shell are/is arranged with a buffer body which protrudes towards the exterior of the protective shell. The present invention overcomes the defect that the buffer provided by a protective shell in the prior art is very limited due to the limited thickness, by arranging the buffer body at the corner part and the vicinity thereof of the shell, greatly improves the buffer stroke, reduces the shock force when the portable appliance accidentally falls to the ground, and improves the local shock resistance, thereby effectively ensuring that the corner part of the shell of an appliance is not damaged when bearing an external shock; and is simple in structure, diverse in type，vivid and interesting, and strongly practical, can be widely applied in portable appliances such as cell phones, Walkman devices, electronic dictionaries, ipad computers, digital cameras, mobile hard discs, GPS navigators, laptop computers, calculators, etc., and has very broad market application prospects.

Description

Impact resistant protective case for portable appliances

Technical field

The invention belongs to the technical field of accessory products of portable electric appliances such as mobile phones, and relates to a protective shell placed on the surface of a portable electric appliance, in particular to a protective shell with better impact resistance.

Background technique

With the advancement of society, portable appliances such as mobile phones have increasingly become an indispensable tool in people's lives. Taking mobile phones as an example, many mobile phones with comprehensive functions and gorgeous appearances are emerging one after another. Many mobile phones are expensive. In order to avoid wear or scratch on the surface of mobile phones during daily use, many people choose to equip their mobile phones with a protective cover. At present, the protective cover of mobile phone products on the market is generally made by rubber-plastic injection molding process. After use, the surface of the mobile phone can be protected, and it also has a certain dustproof effect. However, the existing mobile phone protective casing generally adopts a shell structure of the same thickness. According to common sense, when the mobile phone accidentally falls from a high place, the corner is first landed, and the uniform thickness of the protective casing is at its eight corners. The structural strength is obviously insufficient. Therefore, once the mobile phone falls, the internal parts of the mobile phone are damaged, the fuselage and the protective casing are deformed and damaged at the corners, or the touch screen is broken. It can no longer be used and can only be replaced. In particular, the replacement price of touch screens of branded mobile phones such as Apple's iPhones on the market is similar to that of ordinary mobile phones. The protective casing as an accessory is also expensive, and the cost of replacing the protective casing is high, which not only brings economic burden to consumers, but also It also causes waste of resources. The same problem exists with portable appliances such as iPADs, digital cameras, mobile hard drives, GPS navigators, notebook computers, and calculators. In summary, the existing portable electrical protective casing has insufficient buffering capacity, and the problem of poor protection is urgently needed to be improved.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the above drawbacks and to provide an impact resistant protective case for a portable electric appliance having better cushioning performance.

The impact resistant protective case of the portable electric appliance of the present invention is realized by including a protective cover additionally provided on the surface of the portable electric appliance in conformity with the shape of the portable electric appliance, characterized in that the protective casing is provided near the corner or/and the corner of the protective casing. External raised bumper. The core technical principle of the impact resistant protective shell of the portable electric appliance of the present invention to improve the cushioning performance is to increase the cushioning stroke by using the buffer body. Taking the Iphone4 mobile phone as an example, the weight of the Iphone4 mobile phone is 0.13kg. When falling from a height of 1 meter, the landing speed is ^ - ^fl = 4.43m/s, assuming that the speed after impact is zero, the impact of the protective casing and the buffer body is impacted. The stiffness curve during deformation is linear. According to the law of conservation of energy, the maximum impact force of the mobile phone is hidden, where s is the shock buffer stroke. This formula is called the buffer force formula in the present invention. According to the buffer force formula, the impact force is proportional to the mass and the landing speed, and inversely proportional to the buffer stroke. Assume that the normal uniform thickness of the protective casing is 1.2mm, the protective casing cushioning stroke is 0.8mm, and the ground is made of rigid ground such as marble or cement. The maximum impact force is 3189N, which is equivalent to 325kg, and the maximum impact acceleration is 2500g, which is 2500. Gravity acceleration. This is why mobile phones are particularly vulnerable to damage. If there is no protective casing, the cushioning stroke is shorter and the phone is more susceptible to damage. If the buffer stroke is increased by 20 times, that is, the buffer stroke is 16 mm, the maximum impact force becomes only 16 kg, and the impact acceleration is only 125 g. It can be seen that increasing the buffer stroke can effectively reduce the maximum of the portable electric appliance when landing. Impact and shock acceleration, which significantly reduces damage to the phone. In order to achieve the desired buffering effect, it should be noted that when designing the buffer body, preferably, the buffer body should meet the following requirements: The maximum buffer stroke of the buffer body is greater than the ratio of the square of the design value of the landing speed to the maximum allowable value of the impact acceleration; The stiffness along the direction of the main buffer axis is twice the ratio of the design value of the landing kinetic energy to the square of the maximum buffer stroke; the stiffness of the buffer body along the direction of the secondary buffer axis is 0.3 to 0.5 times the stiffness along the direction of the main buffer axis. Wherein, the main buffer axis of the buffer body points to the centroid of the portable appliance, or the projection of the main buffer shaft in the main plane of the electric appliance extends along the angle bisector of the adjacent two sides; the auxiliary buffer shaft of the buffer body is perpendicular to the main buffer axial direction, or Set perpendicular to the main plane of the portable appliance. In general, the maximum buffer stroke of the buffer is at least 2 times the average thickness of the protective casing except for the rest of the buffer. In the present invention, since the buffer body is only partially disposed, and the high elastic material or the high elastic structure is used in the buffer body, the buffering stroke of the buffer body is large, and the average thickness of the remaining portion of the protective casing except the buffer body can be up to 5 ~ 40 times. In addition, in order to ensure the necessary buffer stroke, in general, the thickness of the buffer body is at least 3 times the average thickness of the protective outer casing except for the rest of the buffer body, and may even be 10 to 50 times according to actual needs.

In order to increase the elasticity of the cushion body and increase the cushioning stroke, a highly elastic material or a highly elastic structure may be provided in the cushion body. For example, a coil spring structure may be disposed in the buffer body, the coil spring structure is made of a metal material, or a rubber material, or a polyurethane material, or a plastic material, or may be compounded by the above materials; a bending spring may also be disposed in the buffer body Structure, the curved spring structure is made of a metal material, or a rubber material, or a polyurethane material, or a plastic material, or is compounded by the above materials It is also possible to provide a shear spring structure in the buffer body, the shear spring structure is composed of a base and a moving body and an elastic material between the two; in addition, a telescopic structure can be arranged in the buffer body, and the telescopic structure is externally The sleeve and the at least one movable core are composed. When only one movable core is disposed, a friction pair or/and a damping air hole are provided between the outer sleeve and the only one movable core, and when a plurality of movable cores are provided, the outer sleeve A friction pair or/and a damping air hole are respectively disposed between the movable core and the movable core connected to the movable core; and a local protrusion may be disposed on the buffer body to enhance the local elasticity of the buffer body; of course, the buffer body It can also be made directly from an elastic polymer material including a rubber material, a PVC material or a polyurethane material. In addition, if the buffer body is not additionally provided with damping or high damping material, the natural damping of the buffer body is generally too small, and the mobile phone will rebound after standing still, forming a landing impact again. If the damping is set, and the damping ratio of the impact system formed when the appliance and the buffer body touch the ground is close to the critical damping, the appliance will not rebound after being stationary, and the damping at this time is the optimal damping. Another benefit of having optimal damping is that it can consume more impact energy and absorb higher landing impact speeds under the same cushioning stroke and the same impact force. Therefore, it is also possible to add a damping structure to the buffer body, for example, a closed cavity in the buffer body, a cavity sealed with a liquid damping material, a cavity with an open pore damping structure, an adhesive damping structure or a small hole. Throttle damping structure. Of course, the buffer body can also be at least partially composed of a solid damping material comprising a high damping rubber or a high damping polyurethane. Preferably, the damping size of the damping structure is designed according to the critical damping in the most common impact mode.

The shape of the buffer body in the present invention may be various, and may be a streamlined shape of at least a partial sphere, or at least a partial ellipsoid, or a cylinder; it may be at least a partial plant shape, and the plant described herein is not only Including flowers and trees, including vegetables, fruits, seeds, etc., may be at least part of the shape of an object such as a flower, a Christmas tree, a peanut, a pea, a pumpkin, an apple, a strawberry, an orange, or a watermelon; or at least a partial character shape, The characters include realistic and virtual characters, such as real people represented by Einstein, mythical figures represented by Sun Wukong, cartoon characters represented by Lai Niu, or cartoon characters represented by Pleasant Goats. In addition, at least a part of the characters may also be an organ of a person, such as an eye, an ear, a mouth, a nose, a heart, a hand, a foot, etc.; in addition, at least a partial animal shape, such as a zodiac image, a penguin, a lion Or seven-spotted ladybugs, of course, including animal organs, such as ears and claws. Mouth shell. In addition, it should be noted that, in practical applications, the specific shape of the buffer body in the present invention may also be the artistic evolution or the direction of the natural shape of the above-mentioned person and object.

The impact resistant protective case of the portable electric appliance of the present invention is provided separately at the corner of the protective outer casing In addition to the buffer body, it is also possible to provide an integrated continuous buffer body at the corners of both ends of the same edge along the thickness direction of the protective casing, that is, one buffer body simultaneously protects the two corners on the protective casing.

The buffer body may be integrally formed with the protective casing when manufacturing the protective casing, or the buffer body may be connected by an anchor, bonded, screwed, hinged, fastener connected, slotted or fastener connected. The way is fixed on the protective casing. Therefore, the selection range of the buffer body is also very wide. For example, the buffer body and the protective shell can be plasticized at one time by using a plastic material; metal materials, plastic materials, rubber materials, polyurethane materials, natural fiber materials such as cotton and linen, and chemical fiber can also be used. The material is first made into a buffer body from at least two of the above materials, and the buffer body is fixed on the protective casing. The buffer body is independently provided, and the entire protective casing does not need to be replaced when the buffer body is damaged. In addition, the selection range of the buffer body is further expanded, which is more advantageous for improving the impact resistance and the damage resistance of the buffer body, and the texture and form are more abundant. Diverse and distinctive. For example, a cushion body made of a rubber material has a large elasticity and a strong cushioning capacity; a cushion body made of a cotton material has a good hand feeling and does not damage the clothes and the package; and is made of a light metal such as an aluminum alloy and a leather or rubber material. The cushion body is more durable, more fashionable, and so on. With various colors, it can meet the different needs of different people. In addition, after standardizing the connection interface between the protective case and the buffer body, the versatility of the buffer body can be realized, and the buffer body on the protective case can be replaced at any time to satisfy the aesthetic and preference changes.

In addition, in order to give way to the camera, etc., in order to dissipate heat for the electric appliance, or to display the product logo, etc., the function of the outer casing can also be set to the function through hole. According to the actual situation, the contour shape of the through hole can be square or rectangular. Various shapes such as circles, triangles, apples, stars or diamonds.

When portable appliances, such as mobile phones, fall off from the table top or the hands, most of the time when landing, the corners first land. The mobile phone protection casings on the existing market generally adopt a rubber-plastic protective casing with a substantially uniform thickness, and the buffer provided is protected. The thickness of the outer casing is very limited. If the thickness of the protective casing is evenly thickened, the protective casing becomes very clumsy, which is not accepted by the fashion family and is not economical. The invention provides a bumper body at the corner of the protective casing, so that the impact resistance of the protected portable electrical appliance and the protective casing is remarkably enhanced, without excessively increasing the cost, without affecting the appearance, practicality and economy. Both sex and safety.

The impact resistant protective case of the portable electric appliance of the present invention can greatly improve the buffering stroke by providing a buffer body at the corner of the protective casing and the vicinity thereof, thereby reducing the impact force when the portable electric appliance accidentally falls, and improving the local impact resistance. It can effectively ensure that the corners of the protective casing are protected from damage when subjected to external impact, which is beneficial to prolonging the service life of the product and improving safety performance. Portable electrical appliance of the invention Impact-resistant protective shell, structural tube, not only maintains all the advantages of the original protective shell, but also has a variety of forms, vivid and interesting, practical, greatly improving the impact resistance of the product, can be widely used in mobile phones, portable Portable applications such as listening, camera, mobile hard disk, laptop, GPS navigator, electronic dictionary, ipad, etc., have broad application prospects.

DRAWINGS

1 is a schematic structural view of an impact resistant protective case of a portable electric appliance of the present invention in the first embodiment. Figure 2 is a left side view of Figure 1.

3 is a perspective view showing the three-dimensional structure of the impact resistant protective case of the portable electric appliance of the present invention shown in FIG. Figure 4 is a partial cross-sectional view taken along line A-A of Figure 1.

FIG. 5 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the second embodiment. 6 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the third embodiment. 7 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the fourth embodiment. 8 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the fifth embodiment. 9 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the sixth embodiment. FIG. 10 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the seventh embodiment. 11 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the eighth embodiment. Figure 12 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the ninth embodiment. Figure 13 is a left side view of Figure 12.

Fig. 14 is a perspective view showing the three-dimensional structure of the impact resistant protective case of the portable electric appliance of the present invention shown in Fig. 12. Figure 15 is a partial cross-sectional view taken along line C-C of Figure 12;

16 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the tenth embodiment. Figure 17 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the eleventh embodiment. 18 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in the twelfth embodiment. Figure 19 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the thirteenth embodiment. Figure 20 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the fourteenth embodiment. Figure 21 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the fifteenth embodiment. Figure 22 is a left side view of Figure 21 . Figure 23 is a partial cross-sectional view of the DD of Figure 21 .

Figure 24 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the sixteenth embodiment. Figure 25 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the seventeenth embodiment. Figure 26 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the eighteenth embodiment. Figure 27 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the nineteenth embodiment. 28 is a schematic structural view of an impact resistant protective case of the portable electric appliance of the present invention in Embodiment 20. Figure 29 is a bottom view of Figure 28.

Figure 30 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the twenty-first embodiment.

Figure 31 is a bottom view of Figure 30.

Figure 32 is a schematic view showing the structure of an impact resistant protective case of the portable electric appliance of the present invention in the twenty-second embodiment. detailed description

Embodiment 1

Due to the wide variety of existing portable appliances and the different shapes of the casings, it is impossible to give a comparison description. The technical principle of the present invention will be specifically described below by taking the impact resistant casing of the mobile phone as an example. As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the impact resistant protective case of the portable electric appliance of the present invention is specifically an impact resistant protective case of the mobile phone, and includes protection corresponding to the shape of the mobile phone (not shown). The outer casing 1 and the protective outer casing 1 are made of elastic PVC material, and the eight corners of the protective outer casing are provided with a buffer body 2 protruding to the outside of the protective outer casing. The outer shape of the buffer body 2 is a partial sphere, and the buffer body 2 is also made of elastic PVC. Made of a material which is plasticized and formed together with the protective casing 1. In this example, the thickness of the buffer body is 3.5 times the average thickness of the outer portion of the protective casing 1 except the buffer body 2.

In application, the portable electrical appliance to be protected is directly embedded in the impact resistant protective case of the portable electrical appliance of the present invention. Since the cushion body 2 is provided at the corner of the impact resistant protective case of the portable electric appliance of the present invention, when the portable electric appliance to which the present invention is applied falls unexpectedly, the cushion body 2 located at the corner of the protective casing 1 is generally grounded first. Contact, because the buffer body 2 adopts a partial sphere structure, the buffer stroke is significantly improved, and the impact resistance is good, which not only can effectively protect the portable electric appliance from damage, but also can protect its structure from damage and has a longer service life. more durable.

It should be noted that the Z direction in FIG. 4 is the main buffer axis direction of the buffer body, and FIG. 1 and FIG. 2 The intersection of the AA section and the BB section of the middle buffer body is the same, pointing to the center of mass of the portable appliance. Since the buffer body adopts a structure with non-uniform thickness, its performance in different directions is different. Therefore, we explain the various properties of the buffer body in the direction of the main buffer axis (ie, Z-direction M乍). The parameters such as the secondary buffer axis and the maximum buffer stroke are established based on the standard. The maximum buffer stroke of the buffer is directly related to the buffer protection effect that the buffer can achieve. In order to achieve the desired buffer effect, it is necessary to design the buffer. Note that, preferably, the buffer body should meet the following requirements: The maximum buffer stroke of the buffer body is greater than the ratio of the square of the design speed of the landing speed to the maximum allowable value of the impact acceleration; the stiffness of the buffer body along the direction of the main buffer axis is the design value of the landing kinetic energy and In addition, the maximum buffer stroke of the buffer body is at least 2 times the average thickness of the outer portion of the protective casing except for the rest of the buffer body. In the present invention, since the buffer body is only partially disposed and buffered A highly elastic material or a highly elastic structure is used in the body, so that the buffer can realize a buffer line 4艮, the average thickness of the remaining part of the protective casing except the buffer is 5 ~ 40 times. In addition, in order to ensure the necessary buffer stroke, in general, the thickness of the buffer is the average thickness of the outer part of the protective casing except the outside of the buffer. At least 3 times, depending on the actual needs, can even be 10 ~ 50 times.

In addition, the shape of the buffer body can be various, except that a buffer body having a shape of a partial sphere is disposed, and the shape of the buffer body can be at least a part of a streamline shape of a rugby body; or at least a partial plant shape, The plant includes not only flowers and trees, but also vegetables, fruits, seeds, and the like, and may be at least partially shaped of flowers, Christmas trees, peanuts, peas, apples, pumpkins, strawberries, oranges, or watermelons; At least part of the character's shape, the characters include realistic and virtual characters, such as real people represented by Einstein, mythical characters represented by Sun Wukong, cartoon characters represented by Lai Niu Xin, or Pleasant Goat Representative cartoon characters, etc., in addition, at least some of the characters may also be organs of the person, such as eyes, ears, mouth, nose, hands, feet, etc.; in addition, at least part of the animal shape, such as the image of the zodiac, Penguin, lion or ladybug, of course, including animals Organs, such as ear, jaw, mouth, shells and the like. By drawing the buffer body into a color corresponding to the shape item, the impact resistant protective case of the portable electric appliance of the present invention can be more aesthetically pleasing and the form is more vivid and diverse. The description of this paragraph is equally applicable to other embodiments of the present invention, and is described herein again and will not be described repeatedly.

In addition to the elastic PVC material mentioned in the text, the buffer body of the present invention can also be made of other elastic polymer materials, for example, rubber material or polyurethane material, and the same can be achieved as long as the buffering capacity is sufficient. effect. The impact resistant protective shell of the portable electric appliance of the invention has a single structure, strong practicability, beautiful appearance, long service life and good buffer protection effect. In addition, the present invention is not limited to the mobile phone application shown in the drawings, and the technical principle of the present invention can also be applied to various mobile phones, walkmans, electronic dictionaries, ipads, digital cameras, mobile hard disks, GPS navigators of other shapes. The improvement and application of the protective casing of portable electrical appliances such as laptops and calculators, and the formation of corresponding impact-resistant protective casings for portable electrical appliances have a broad market application prospect.

Embodiment 2

In the present invention, the buffer body can have various shapes and a variety of structures. As shown in FIG. 5, the impact resistant protective case of the portable electric appliance of the present invention is different from the first embodiment in that the protective outer casing 1 is made of a hard plastic material, the buffer body is provided with a coil spring structure, and the coil spring structure is protected by a protective cover 4. And the coil spring 5, wherein the protective cover is made of stainless steel plate, the coil spring 5 is made of stainless steel wire, the upper part of the coil spring 5 is welded and fixed together with the protective cover 4, and the lower end thereof is anchored in the protective casing 1, the coil spring 5 The axial direction is set along the direction of the main buffer axis of the buffer body.

During use, when the portable electrical appliance of the present invention described in this example is accidentally dropped, once the corner is first landed, the protective cover 4 located at the corner of the protective casing 1 will first contact the ground and transmit the impact force to the spiral. The spring 5, because of the good elasticity of the coil spring 5, can greatly absorb the impact energy and has a buffering effect, thereby realizing the purpose of protecting the portable electric appliance and protecting the outer casing 1 from damage.

It should be pointed out that since the coil spring is provided with a metal coil spring, the coil spring has good elasticity in both its vertical and lateral directions. Therefore, as shown in FIG. 5, the buffer body has a buffering effect in the Z direction. The F direction also has a certain buffering effect. Here, the Z direction is the main buffer axis direction of the buffer body, the F direction is the sub buffer axis direction of the buffer body, and the sub buffer axis direction of the buffer body is perpendicular to the main buffer axis direction. It should be noted in the design that, in order to ensure the buffering effect, it is preferable that the stiffness of the buffer body in the direction of the auxiliary buffer axis is 0.3 to 0.5 times the rigidity in the direction of the main buffer axis. The advantage of this is that when the two corners of the portable appliance, or the triangles, or the four corners are simultaneously at the same time, when the plurality of buffer bodies simultaneously buffer, the total stiffness along the impact direction remains in the direction along the main buffer axis according to the maximum probability. The stiffness is about 1 times, so that the total stiffness in the impact direction is not too large, resulting in excessive impact force.

In this example, since the protective cover 4 and the coil spring 5 in the buffer body are made of stainless steel, the service life is longer and more durable. Compared with the first embodiment, the buffer body can be selected from a wider range of material. In addition to the stainless steel material, the coil spring structure can also be made of other metal materials, rubber materials, or polyurethane materials, or plastic materials, or Composited by the above materials As long as it can play a good buffering effect, the same effect can be achieved. Due to the selection of materials, with different shapes and colors, it can also play a better decorative effect, so as to better meet the diverse needs of different users. Due to the use of a coil spring in the buffer body, the buffer stroke can easily meet the maximum buffer stroke of the buffer body. It is technically required to protect the outer casing from the average thickness of the rest of the buffer body by at least 2 times, even up to 40 times, and the stiffness is uniform. In addition, the buffer body also has a good buffering capacity in the direction of the secondary buffer axis.

Embodiment 3

As shown in FIG. 6, the impact resistant protective case of the portable electric appliance of the present invention is different from the second embodiment in that the buffer body is a curved spring structure, and the curved spring structure is composed of a protective cover 4 and a bending spring 6, wherein the protective cover 4 is made of plastic. The bending spring 6 is made of a spring wire, and the upper portion of the bending spring 6 is fixed in the protective cover 4, and the lower end thereof is anchored in the protective casing 1, and the maximum deformation direction of the bending spring 6 is set along the main buffer axis direction of the buffer body.

Similar to the second embodiment, the curved spring structure may also be made of a metal material, a rubber material, a polyurethane material, or a plastic material, or may be composited from the above materials, and is not limited to the materials mentioned in this example. As long as it can achieve a good buffering effect, the same effect can be achieved. In addition, based on the technical principle of this example, the protective cover can also be made of a material such as rubber or polyurethane, and the same effect can be achieved.

Embodiment 4

Based on the technical principle of the third embodiment, as shown in FIG. 7, the impact resistant protective case of the portable electric appliance of the present invention is different from the third embodiment in that the curved spring structure is composed of a "C"-shaped bending spring 6, wherein The bending spring 6 is made of a spring steel sheet, and the bending spring 6 is integrally connected with the protective casing 1 through the lower welded joint 20 thereof, and the maximum deformation direction of the bending spring 6 is arranged along the main buffer axis direction of the buffer body.

Since the spring steel sheet is made of the spring steel sheet in this example, not only has good elasticity, but also functions as a protective cover, and there is no need to separately provide a protective cover. Therefore, the structure of the impact resistant protective case of the portable electric appliance of the present invention is described in this example. More single, it helps to reduce costs. Similarly, the curved spring structure may also be made of a metal material, or a rubber material, or a polyurethane material, or a plastic material, or may be compounded from the above materials, for example, a cavity in the middle of the curved spring 6 described in this example. It is filled with a high elastic material such as rubber.

Embodiment 5

The impact resistant protective case of the portable electric appliance of the present invention shown in FIG. 8 is different from the first embodiment in that The outer shape of the buffer body 2 is a partial ellipsoid, and the buffer body 2 is also provided with a closed cavity 7. In the impact resistant protective case of the portable electric appliance of the present invention described in the present embodiment, since the closed cavity 7 is added to the buffer body 2, the elastic deformation ability of the cushion body is stronger, and the maximum cushioning stroke which can be realized is larger, The buffer protection performance is superior and the utility is better.

Embodiment 6

As shown in FIG. 9, the impact resistant protective case of the portable electric appliance of the present invention is different from the fifth embodiment in that the impact resistant protective case of the portable electric appliance of the present embodiment is made of a foamed elastic polyurethane material, and the buffer body 2 A plurality of closed small cavities 21 are included.

Similar to the principle of the fifth embodiment, since a plurality of closed cavities 21 are added to the buffer body 2, the cushion body is more elastically deformable, and the maximum cushioning stroke that can be achieved is larger, so that the cushioning performance is superior.

Example 7

As shown in FIG. 10, the impact resistant protective case of the portable electric appliance of the present invention is different from the second embodiment in that the buffer body comprises a protective cover 4 and a shear spring structure, and the shear spring structure is composed of the base 9 and the movable body 8 and The elastic material 10 is composed of the elastic material 10, wherein the protective cover 4, the movable body 8 and the base 9 are all made of steel material, the elastic material 10 is specifically a rubber material, and the protective cover 4 and the movable body 8 are welded integrally, and the moving body 8 and The base 9 is vulcanized integrally with the elastic rubber material 10, and the lower end of the base 9 is fixed in the protective casing 1, and the axial direction of the movement of the movable body 8 is arranged along the vertical direction of the buffer body.

When the portable electric appliance of the present invention is accidentally dropped to the ground, the protective cover 4 in the buffer body 2 is first brought into contact with the ground, and the relative movement between the movable body 8 and the base 9 is caused. Further, the elastic rubber material 10 is sheared. Since the rubber material has good damping characteristics, external impact energy is consumed during the shearing process, which acts as a buffer, thereby effectively protecting the portable electrical appliance and protecting the outer casing from damage. .

Example eight

The impact resistant protective case of the portable electric appliance of the present invention is different from the second embodiment in that the buffer body includes a protective cover 4 and a telescopic structure, and the telescopic structure is composed of an outer sleeve 12, a movable core 10 and a movable core 11. The protective cover 4, the outer sleeve 12, the movable core 10 and the movable core 11 are all made of steel, the movable core 10-end is welded to the protective cover 4, and the lower end of the outer sleeve 12 is anchored in the protective casing 1 In addition, the movable core 10 can be extended or retracted into the movable core 11, and the floating core 11 can be extended or retracted into the outer sleeve 12 alone or with the movable core 10, and the movable cores 10 and 11 move. The axial direction is disposed along the vertical direction of the buffer body, and a friction pair is disposed between the movable core 11 and the outer sleeve 12 and between the movable core 10 and the movable core 11, respectively.

During use, when the portable electric appliance of the present invention described in this example is accidentally dropped, once the corner is first landed, the protective cover 4 located at the corner of the protective casing 1 first contacts the ground and transmits the impact force to the telescopic The structure, the telescopic structure is compressed, the movable core and the outer sleeve and the movable core are moved relative to each other, and the relative movement is caused by the friction pair between the movable core and the outer sleeve and the movable core respectively During the process, the frictional resistance consumes part of the impact energy, thereby effectively reducing the maximum impact force and impact acceleration of the portable electric appliance when it is dropped, protecting the portable electrical appliance and protecting the outer casing from damage.

In this example, a telescopic structure in which two movable cores are disposed in a buffer body is taken as an example. In practical applications, the shrink-contracting structure may be provided with only one movable core, or three or more movable cores. As with the technical principle described in this example, when a movable core is provided, a friction pair is provided between the outer sleeve and the only one movable core; when a plurality of movable cores are provided, as long as between the outer sleeve and the movable core and The same function as in this example can be achieved by providing a friction pair between the movable core and its adjacent movable core. The advantage of using frictional damping is that for the same landing speed, the same maximum buffering stroke, the maximum impact force is smaller than the elastic buffer, and there is no rebound, achieving better cushioning and damping effects. However, it is necessary to pull the movable core back to its original state after landing impact.

Example nine

The impact resistant protective case of the portable electric appliance of the present invention shown in FIG. 12, FIG. 13, FIG. 14 and FIG. 15 is different from the first embodiment in that the protective outer casing 1 and the cushioning body 2 are made of high damping rubber, and An integrated continuous cushion body 2 is disposed at an angle between both ends of the same edge in the thickness direction of the protective casing 1, that is, one cushion body 2 simultaneously protects two corners on the protective casing 1, and the outer shape of the cushion body 2 is a partial ellipsoid. In addition, in order to display the product logo, the through hole 3 is also provided in a part of the protective casing 1, and the through hole 3 has a rectangular shape. In this example, as shown by the Z direction in FIGS. 12 and 15, the projection of the main buffer shaft of the buffer body in the main plane of the electric appliance extends along the angle bisector of the adjacent two sides; as shown in FIG. 13 and FIG. The secondary buffer shaft of the buffer body is disposed perpendicular to the main plane of the portable electric appliance. For example, the iphone touch screen plane is the main plane of the portable electric appliance, and the rigidity along the auxiliary buffer shaft is 0.3 times along the main buffer shaft, so that when the portable electric appliance main When the plane is roughly parallel to the ground, the four corners land together, and the maximum stiffness along the impact direction is 1.2 times the stiffness along the main buffer axis. By analogy, the three angles are 0.9 times first, and the two corners are first The time is 0.6 times.

Of course, the purpose of providing the through hole 3 in the portion of the protective casing 1 can be used for displaying products. Logo 夕卜, can also meet the needs of the camera to give way or to facilitate the cooling of the electrical work. Further, according to actual needs, the through holes may be provided in more than one, and the contour shape of the through holes may be other shapes such as a square, a circle, an apple, a triangle, a star, or a diamond, in addition to the rectangle already mentioned.

The advantage of using high damping rubber is that for the same landing speed and the same maximum cushioning stroke, the maximum impact force is smaller than the pure elastic buffer, and the rebound is small, which achieves better buffer damping effect for portable appliances. In addition to the high damping rubber, the protective casing 1 and the cushioning body 2 can also be made of other solid damping materials such as high damping polyurethane.

As in the first embodiment, in the technical solution of the present embodiment, the shape of the buffer body 2 may be at least a partial plant shape, or at least a partial character shape, or at least a partial animal shape, etc., in addition to being a local ellipsoid. The same effect can be achieved as long as the effective lifting of the buffer stroke can be achieved.

Example ten

As shown in FIG. 16, the impact resistant protective case of the portable electric appliance of the present invention is different from the ninth embodiment in that the protective outer casing 1 and the cushioning body 2 are integrally formed from a common rubber material, and the cushion body 2 is provided for increasing elasticity. Three cavities 7. Channels 30 that communicate with each other and communicate with the outside are disposed between the cavities 7, forming an open venting structure.

In the impact resistant protective case of the portable electric appliance of the present invention described in the present embodiment, since the closed cavity 7 is added to the buffer body 2, the elastic deformation ability of the cushion body is stronger, and the maximum cushioning stroke which can be realized is larger, The buffer protection performance is superior and the utility is better. In addition, in the technical solution of the present embodiment, the buffer body is provided with the passages 30 communicating with each other and communicating with the outside between the cavities, so that when the buffer body is deformed, the air in the cavity 7 passes through the passage 30 to the outside. Discharge, due to the small cross-sectional dimension of the passage 30, a small hole damping effect is generated when the air passes, thereby increasing the damping effect of the buffer system. Preferably, the damping structure of the damping structure is designed according to the critical damping of the most common impact mode, which can further improve the buffer damping performance of the buffer body, reduce the maximum impact force, and reduce the rebound.

Based on the principle described in this example, the shape, size and number of the cavities 7 can be set according to actual needs, and are not limited to the shapes, the numbers and the sizes in the drawings, and the same functions can be realized as long as the buffering ability can be improved. In addition, it is also possible to provide independent communication channels 30 only between the three cavities and the outside, and also to increase the damping of the buffer system and improve the buffer damping performance. Of course, the channel 30 can also be provided with multiple It is the change of the single package of the technical solution described in this example, and is not attached here. BRIEF DESCRIPTION OF THE DRAWINGS The description given only by words is also within the scope of protection claimed in the present invention.

Embodiment 11

As shown in Fig. 17, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the tenth embodiment in that the liquid damper 13 is provided in the cavity 7 in the cushion body 2.

Under normal circumstances, if the buffer body is not additionally provided with damping or high damping material, the natural damping of the buffer body is generally small, and the portable electric appliance will rebound after standing still, forming a landing impact again. In this example, a liquid damping material 13 is added to the cavity 7 in the buffer body 2. The local damping performance of the impact resistant protective casing of the portable electric appliance of the present invention is remarkably improved, and the cushion body is elasticized when the buffer body contacts the ground. The deformation, in addition to the partial energy consumption of the cushion body material itself, also causes the liquid damping material 13 in the cavity 7 to move relative to the side wall of the cavity, thereby achieving energy consumption again. If the damping ratio of the impact system formed by the parameter optimization to the ground when the appliance and the buffer body touch the ground is close to the critical damping (ie, the optimal damping), the appliance will not rebound after it is still. Another advantage of optimal damping is that it can consume more impact energy under the same impact force and absorb higher ground impact speed for better cushioning and damping. The liquid damping material 13 may specifically be a plurality of liquid damping materials such as silicone oil or modified asphalt.

Example twelve

As shown in FIG. 18, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the eleventh embodiment in that the buffer body 2 is provided with two cavities 7 which are sealed and provided with the liquid damping material 13, and two cavities 7 It is also connected by two small channels 14 and 15 to form a small orifice throttle damping structure.

During use, when the portable electric appliance of the present invention described in this example is accidentally dropped, in addition to the cushion body material itself and the liquid damping material 13 and the side wall of the cavity 7 generate relative motion friction to achieve energy consumption, due to the rushing The pressure in the cavity on the side that produces a large deformation suddenly rises, and a portion of the liquid damping material is squeezed into the cavity on the other side through the two passages 14 and 15, in the process, again due to the passages 14 and 15. The cross-sectional dimension of 4 艮 is small, and the small-hole throttling effect can be formed between the two cavities to realize energy consumption again. Therefore, the buffering energy-consuming effect of the technical solution in this example is better.

The advantage of this structure is also that it is easy to achieve optimal damping.

Example thirteen

As shown in FIG. 19, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the twelfth embodiment in that a plurality of columnar projections 16 are disposed on the inner wall of the cavity 7 in the buffer body 2, and the liquid damping material 13 is selected. High viscosity liquid damping material, composed of liquid damping material 13 and protrusions 16 Adhesive damping structure.

During use, when the portable electric appliance of the present invention described in this example is accidentally dropped, the protrusion 16 on the inner wall of the cavity 7 is removed due to the elastic deformation of the material of the buffer body 2 to realize energy consumption. The relative movement between the high-viscosity liquid damping materials 13 occurs, and the viscous resistance generated during the relative motion between the two will simultaneously achieve the second energy consumption, thereby effectively improving the buffer damping effect. The advantage of this structure is also that it is easy to achieve optimal damping.

Embodiment 14

Based on the technical principle of the thirteenth embodiment, as shown in FIG. 20, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the thirteenth embodiment in that only one cavity 7 is provided in the buffer body 2, and the cavity 7 is disposed in the cavity 7. The high-viscosity liquid damping material 13 is further provided with strip-like projections 17 and 18 which are alternately arranged in the upper and lower walls of the cavity 7.

During use, when the portable electric appliance of the present invention is accidentally dropped to the ground, the cushion body 2 is elastically deformed after being in contact with the ground, and relative movement between the boss 17 and the boss 18 occurs between the two. The liquid damping material 13 forms an extrusion, and the liquid damping material is forced to sway in the gap between the boss 17 and the boss 18, and the presence of the boss 17 and the boss 18 greatly increases the effectiveness of the buffer body and the liquid damping material. The contact area, therefore, the liquid damping material produces greater viscous drag and energy consumption, which can effectively improve the buffer damping effect of the product. The advantage of this structure is that it is easier to achieve optimal damping.

Example fifteen

As shown in FIG. 21, FIG. 22 and FIG. 23, the impact resistant protective case of the portable electric appliance of the present invention is different from the ninth embodiment in that the buffer body 2 is separately fabricated using a highly damped polyurethane material, and its shape is still a local ellipsoid, buffering. The body 2 is adhesively fixed at the corner of the protective casing 1.

Since the buffer body 2 and the protective casing 1 adopt a split structure, the material of the buffer body may be the same as or different from the protective casing, and the material selection range is wider, for example, metal materials, plastic materials, rubber materials, A natural fiber material such as a polyurethane material, leather, cotton or linen, a chemical fiber material, or at least two materials of the above materials are first made into a buffer body, and the buffer body is fixed on the protective casing. In addition to the adhesive bonding already mentioned, the buffer body can also be fixed to the protective casing by means of a fastener connection, a screw connection, a card slot connection or a fastener connection.

The technical solution described in this example adopts a buffer body that is independently provided. When the buffer body is damaged, it is not necessary to replace all the protective casings. In addition, the selection range of the buffer body is further expanded, which is more advantageous for improving the impact resistance and breakage resistance of the buffer body. Its texture and form are more diverse and more distinctive. example For example, the cushion body made of rubber material has high elasticity and strong buffering capacity; the cushion body made of cotton material has good hand feeling and does not damage the clothes and the package; and is made of light metal such as aluminum alloy and rubber material or leather material. The cushion body is more durable, more fashionable, and so on. With various colors, it can meet the different needs of different people. In addition, after standardizing the connection interface between the protective casing and the buffer body, the versatility of the buffer body can be realized, and the buffer body on the protective casing can be replaced at any time to satisfy the aesthetic and preference changes.

Based on the technical principle of the first embodiment, in the technical solution of the first embodiment, the buffer body and the protective casing can be separately manufactured and fixedly connected to each other, and the same effect can be obtained.

Example sixteen

As shown in FIG. 24, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the fifteenth embodiment in that the buffer body is provided with a curved spring structure, which is different from the curved spring structure described in the fourth embodiment, and constitutes a buffer body. The curved spring structure comprises a "C"-shaped bending spring 6, which is made of steel sheet. In addition, the lower part of the bending spring 6 is also welded and fixed with a screw member 32. The screw member 32 is specifically made of steel. Screw. The protective casing 1 is made of a stainless steel material, and the connecting seat 31 is welded and fixed to the corner of the protective casing 1. The bending spring 6 is assembled with the screw hole in the connecting seat 31 by the screw member 32 to realize the relationship between the cushioning member and the protective casing. connection.

The impact resistant protective case of the portable electric appliance of the present invention has the advantages of the fourth embodiment. Since the buffer body and the protective outer casing are connected to each other by using screw elements, the buffer body can be removed from the protective casing at any time. It is not only easy to repair and replace the buffer body, but also to standardize the threaded interface between the protective casing and the buffer body. It can also change the buffer body on the protective casing according to the trend of the trend to meet the aesthetic and preference changes. Of course, according to the technical principle of the present example, it is also possible to provide a screw member 32 in the protective casing, and a connecting seat 31 with a screw hole in the buffer body, which are all the single-piece variations of the technical principle of the present invention, and also in the present invention. The scope of protection required is not illustrated in the other figures.

Example seventeen

As shown in FIG. 25, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the fifteenth embodiment in that the buffer body 2 is provided with a cavity 7, and further, the buffer body 2 is provided with a plurality of communicating cavities 7 and an outer portion. The small hole passage 33 constitutes an open pore damper structure. Further, the cushion body 2 and the protective casing 1 are joined together by a fastener 34 which is made of a plastic material.

Compared with the fifteenth embodiment, since the cavity 7 is provided, the cushion body 2 in the technical solution of the present embodiment has better elasticity, a larger cushioning stroke and better cushioning performance. In addition, when the buffer body is subjected to impact deformation At this time, the air in the cavity 7 is discharged to the outside through the small hole passage 33. Since the cross-sectional size of the small hole passage 33 is small, a small hole damping effect is generated when the air passes, thereby increasing the damping effect of the buffer system. The buffer damping performance of the buffer can be further improved.

Example 18

The impact resistant protective case of the portable electric appliance of the present invention shown in Fig. 26 is different from that of the seventeenth embodiment in that the cushion body 2 and the protective casing 1 are hinged together by the pin 35.

The buffer body 2 and the protective casing are connected by means of splicing, and the beneficial effect is that when the portable appliance is dropped together, the buffer body automatically adjusts the posture, and after the center of gravity of the buffer body is properly set, the buffer body can be touched The posture direction of the time is kept as the same as the maximum buffer stroke direction of the buffer body, which is advantageous for better buffer damping effect of the buffer body.

Example 19

As shown in FIG. 27, the impact resistant protective case of the portable electric appliance of the present invention is different from that of the fifteenth embodiment in that the buffer body 2 is partially disposed along the direction of the main buffer axis in the Z direction and the direction of the F in the direction of the sub buffer axis. The protrusion 36, the partial protrusion 36 is integrally provided with the buffer body, the material is the same, the main buffer axis is parallel to the main plane and points to the center of mass of the portable appliance, and the auxiliary buffer shaft is disposed perpendicular to the main plane of the portable appliance.

In the technical solution described in this example, since the localized protrusion is provided on the buffer body 2, the local elasticity is better, the buffer stroke can be realized, and the rigidity of the main and auxiliary buffer shaft directions can be more easily and independently optimized. Therefore, the buffer protection performance is better.

Example twenty

As shown in FIG. 28 and FIG. 29, the impact resistant protective case of the portable electric appliance of the present invention is specifically an impact resistant protective case of a notebook computer, including a protective casing 38, and the notebook computer 37 is embedded in the protective casing 38, and the protective casing 38 is utilized. Made of elastic rubber material, the display part can be smoothly opened and closed when the notebook is in use. The buffer body 40 is respectively disposed on the protective casing 38 at the eight corners corresponding to the closed state of the notebook computer, and the buffer body 40 and the protective casing 38 are integrally formed by the same material. In order to facilitate heat dissipation, the impact resistant protective case of the portable electric appliance of the present invention is further provided with a plurality of through holes 39 at positions corresponding to the notebook computer heat sink.

Since the impact resistant protective case of the portable electric appliance of the present invention is disposed on the surface of the notebook computer, when the notebook computer accidentally falls to the ground, the buffer body 40 first contacts the ground, and buffer damping is achieved, and the buffer stroke is long, which can effectively alleviate the impact. Damage to the laptop, protect the laptop Free from damage.

Based on the technical principle recorded in this example, the impact resistant protective case of the portable electric appliance of the present invention can also be made of materials such as polyurethane, plastic or stainless steel, but it should be noted that in order to cooperate with the opening and closing of the screen portion of the notebook computer, when stainless steel or the like is used, the rigidity is large. When the material is not easy to fold, the protective casing can be provided with a component structure. Of course, in order to improve the integrity, it is also possible to connect the two parts of the split body by means of hinges, flexible ropes or belts, etc. The same effect is obtained by the description of the drawings based on the technique of the present invention, and the description is given only by the words, and the other drawings are not illustrated, and are all within the scope of protection required by the present invention.

Embodiment 21

As shown in FIG. 30 and FIG. 31, the impact resistant protective case of the portable electric appliance of the present invention is different from the embodiment 20 in that, due to the upper part of the notebook computer, that is, the portion where the display portion is relatively light, the lower portion of the battery when the ground is dropped The probability of first touching the ground is extremely high. Therefore, the buffer body 40 parallel to the main plane of the notebook computer is respectively disposed only at the four corners of the protective casing 38 corresponding to the lower portion of the notebook computer. In addition, a buffer body 41 perpendicular to the upper and lower surfaces of the notebook computer is further disposed on the protective casing 38. The buffer body 41 is disposed near the corner of the protective casing, and a total of eight are disposed, four of which correspond to the upper surface of the protective casing. The four corners correspond to the four corners of the lower surface of the protective casing.

Of course, based on the technical principle of this example, it is also possible to provide the buffer body 41 only on the lower surface of the protective casing. Thus, from the top, the notebook computer to which the present invention is applied is more regular and more beautiful in appearance. As in the twenty-ninth embodiment, the protective casing described in this example can also adopt a split structure.

Example twenty two

As shown in FIG. 32, the impact resistant protective case of the portable electric appliance of the present invention is different from the eighth embodiment in that a friction pair is provided between the movable core 11 and the outer sleeve 12 and between the movable core 10 and the movable core 11 respectively. In addition, the movable core 10, the movable core 11 and the outer sleeve 12 are respectively provided with pinhole-shaped damping air holes 42 to constitute an open-type air hole damping structure.

Due to the addition of the open-type venting structure, when the relative movement between the movable core and the movable core and the outer sleeve occurs, the air through the damping air hole will generate a small hole damping effect, thereby increasing the damping effect of the buffer system, and further Improve the buffer damping performance of the buffer. In addition, when the damping effect of the open-type vent damping structure is sufficiently good, the friction pair may not be provided.

The technical solutions described in the above embodiments of the present invention are only for better understanding of the technical principles of the present invention, and are not limited to the technical solutions described in the embodiments, and the technical solutions in many embodiments may be cross-utilized. Can also achieve 4 good results, not here - for example, all in Within the scope of protection required by the present invention.

In particular, in order to achieve the desired buffering effect, it is necessary to pay attention to the design of the buffer body. Preferably, the buffer body should meet the following requirements: The maximum buffer stroke of the buffer body is greater than the square of the design value of the landing speed and the maximum allowable impact acceleration. The ratio of the value of the buffer body along the main buffer axis is twice the ratio of the design value of the ground motion energy to the square of the maximum buffer stroke; the stiffness of the buffer body along the direction of the secondary buffer axis is 0.3 of the stiffness along the direction of the main buffer axis. ~ 0.5 times. Wherein, the main buffer axis of the buffer body points to the centroid of the portable appliance, or the projection of the main buffer shaft in the main plane of the electric appliance extends along the angle bisector of the adjacent two sides; the auxiliary buffer shaft of the buffer body is perpendicular to the main buffer axial direction, or Set perpendicular to the main plane of the portable appliance. In general, the maximum buffer stroke of the buffer is at least 2 times the average thickness of the protective casing except for the rest of the buffer. In the present invention, since the buffer body is only partially disposed, and the high elastic material or the high elastic structure is used in the buffer body, the buffering stroke of the buffer body is large, and the average thickness of the remaining portion of the protective casing except the buffer body can be up to 5 ~ 40 times. In addition, in order to ensure the necessary buffer stroke, in general, the thickness of the buffer body is at least 3 times the average thickness of the protective outer casing except for the rest of the buffer body, and may even be 10 to 50 times according to actual needs. These contents are applicable to all technical solutions of the present invention.

The impact resistant protective shell of the portable electric appliance of the invention has a single structure, strong practicability, beautiful appearance, long service life, good protection effect, and has broad market application prospects. Because the specification has a limited space, it is impossible to describe the impact resistant protective case of the portable electric appliance of the present invention, which is specifically pointed to by each portable electric appliance, including different shapes of the same electric appliance, in the embodiment, only the mobile phone is used. The technical principle of the present invention is described by taking the protective case of the notebook as an example, but the technical solution described in the present invention is not limited to being used as an impact resistant protective case for mobile phones and notebook computers, and should not be limited to the shape of the mobile phone. And the impact resistant casing application of the notebook computer, based on the technical principles described, can also be used in other shapes of mobile phones and notebook protective cases, and the various technical solutions of the present invention are also applicable to mobile phones, walkmans, The impact resistant casing applications of various portable appliances such as electronic dictionaries, ipads, digital cameras, mobile hard disks, GPS navigators, notebook computers, calculators, etc., are all within the scope of protection required by the present invention.

Claims

Claims 1. An impact resistant protective casing for a portable appliance, comprising a protective casing additionally provided on the surface of the portable appliance in conformity with the shape of the portable appliance, characterized in that the corner of the protective casing or/and the vicinity of the corner are provided for protection a raised buffer on the outside of the housing.

2. The impact resistant protective case for a portable appliance according to claim 1, wherein the thickness of the buffer is at least 3 times the average thickness of the outer portion of the protective casing except for the outer portion of the buffer.

3. The impact resistant protective case for a portable appliance according to claim 1, wherein the cushioning stroke of the buffer is at least 2 times the average thickness of the outer portion of the protective casing except for the outer portion of the buffer.

4. The impact resistant protective case for a portable appliance according to claim 3, wherein the maximum buffering stroke of the buffer is greater than the ratio of the square of the landing speed design value to the maximum allowable value of the impact acceleration.

5. The impact resistant protective case of the portable appliance according to claim 1, wherein the main buffer shaft of the buffer body points to the center of mass of the portable appliance, or the projection of the main buffer shaft in the main plane of the appliance along the adjacent sides The bisector extends.

6. The impact resistant protective case for a portable appliance according to claim 5, wherein the stiffness of the buffer in the direction of the main buffer axis is twice the ratio of the design value of the landing kinetic energy to the square of the maximum buffer stroke.

7. The impact resistant protective case for a portable appliance according to claim 5, wherein the buffer body is further provided with a secondary buffer shaft, the secondary buffer shaft being disposed perpendicular to the main buffer axis, or perpendicular to the main plane of the portable motor.

8. The impact resistant protective case for a portable appliance according to claim 7, wherein the stiffness of the buffer in the direction of the secondary buffer axis is 0.3 to 0.5 times the stiffness in the direction of the main buffer axis.

9. The impact resistant protective case for a portable electric appliance according to claim 1, wherein the buffer body is provided with a coil spring structure, and the coil spring structure is made of a metal material, or a rubber material, or a polyurethane material, or a plastic material. , or a composite of the above materials.

10. The impact resistant protective case for a portable appliance according to claim 1, wherein the buffer body is provided with a curved spring structure, and the curved spring structure is made of a metal material, or a rubber material, or a polyurethane. Made of ester material, or plastic material, or compounded from the above materials.

11. The impact resistant protective case for a portable appliance according to claim 1, wherein the buffer body is provided with a shear spring structure, and the shear spring structure is composed of a base and a moving body and an elastic material therebetween .

12. The impact resistant protective case of the portable electric appliance according to claim 1, wherein the buffer body is provided with a telescopic structure, and the telescopic structure is composed of an outer sleeve and at least one movable core, and the axial direction of the movable core is buffered. The main buffer shaft of the body is arranged, and a friction pair or/and a damping air hole is arranged between the outer sleeve and the only one movable core, or between the outer sleeve and the movable core and the movable core connected to the movable core and the adjacent movable core There are friction pairs or / and damping holes.

The impact resistant protective case for a portable electric appliance according to claim 1, wherein the buffer is made of an elastic polymer material, and the elastic polymer material comprises a rubber material, a PVC material or a polyurethane material.

14. The impact resistant protective case for a portable appliance according to claim 13, wherein the buffer body is provided with a closed cavity, a cavity with an open vent damping structure, and a cavity sealed and provided with a liquid damping material. , Adhesive damping structure or small orifice throttle damping structure.

15. The impact resistant protective case for a portable appliance according to claim 1, wherein a partial projection is provided on the buffer.

16. The impact resistant protective casing of a portable appliance according to claim 1, wherein the cushioning body is at least partially composed of a solid damping material comprising a high damping rubber or a high resistance polyurethane.

17. The impact resistant protective case for a portable appliance according to claim 1, wherein an integrated continuous cushioning body is disposed at an angle of both ends of the same edge in the thickness direction of the protective casing.

18. The impact resistant protective case for a portable appliance according to claim 1, wherein the buffer body and the protective case are integrally provided.

19. The impact resistant protective case for a portable appliance according to claim 1, wherein the buffer body is connected by an anchor, a bond, a screw connection, a fastener connection, a hinge, a card slot connection or a fastener connection. The method is fixed on the protective casing.

20. The impact resistant protective case of the portable electric appliance according to claim 1, wherein the buffer body is made of a metal material, a plastic material, a rubber material, a polyurethane material, a leather, a natural fiber material or a chemical fiber material, or At least two materials in the material are made together.

21. The impact resistant protective case of a portable appliance according to claim 1, wherein the shape of the buffer body is at least a partial sphere, at least a partial ellipsoid, at least a partial plant shape, at least a partial character shape, at least a partial animal shape, Or at least partially a cartoon shape.

22. The impact resistant protective case of the portable electric appliance according to claim 1, wherein the protective outer casing is provided with a functional through hole, and the functional through hole has a contour shape of a square, a rectangle, a circle, an apple, a triangle, a star. Shape or diamond shape.