TWI551211B - Protective cover - Google Patents

Description

protective case

The present invention relates to a protective cover, and more particularly to a protective cover for covering or supporting a portable electronic device.

With the advancement of technology, the types of electronic products are gradually diversified, and the portable electronic devices that are convenient to carry are the most common devices for users in daily life. In recent years, portable electronic devices such as smart phones and tablet computers equipped with touch screens have become the main development trend of various manufacturers. In order to protect such portable electronic devices, most users usually choose to install a protective cover on the outer edge of the portable electronic device. On the one hand, the external strength or foreign matter is blocked by the structural strength of the protective cover. The device, on the other hand, can also provide the function of supporting the portable electronic device, so that the portable electronic device can stand on the desktop for long-term use by the user.

However, the general protective cover can only provide a single angle of support when supporting the portable electronic device, so when the user uses the portable electronic device, the user can only operate according to the single angle provided by the user, and cannot follow the user. The use of habits or the needs of the surrounding environment to adjust the support angle, resulting in a lot of inconvenience.

In addition, although the general protective cover can protect the portable electronic device by its structural strength, most protective covers often fail to provide a complete covering of the portable electronic device, causing the portable electronic device to fall off and protect from falling. The outer layer causes a second injury.

The present invention relates to a protective cover which is simple in structure and easy to use, and can be used by mutually bending the mutually adjacent plate members, and the first and second coupling members can mutually adjust the joint position design. The self-adjusting support angle of the portable electronic device can also make the protective cover more completely cover the portable electronic device.

According to an aspect of the invention, a protective cover for covering or supporting a portable electronic device includes a bottom plate, a first cover plate, a second cover plate and a third cover plate. The bottom plate has a first joint. The first cover is flexibly connected to the bottom plate. The second cover is flexibly coupled to the first cover. The third cover is flexibly connected to the second cover and has a second coupling. Wherein, when the protective cover covers the portable electronic device, the bottom plate, the first cover, the second cover and the third cover enclose the portable electronic device in parallel with each other, and the upper surface of the third cover is close to the bottom plate The lower surface is coupled to the first joint of the bottom plate. Wherein, when the protective cover supports the portable electronic device, the first cover plate is bent relative to the bottom plate, the second cover plate is bent relative to the first cover plate, and the third cover plate is bent relative to the second cover plate, and The lower surface of the third cover is adjacent to the lower surface of the bottom plate, so that the second joint member is combined with the first joint member.

In order to better understand the above and other aspects of the present invention, The preferred embodiment is described in detail with reference to the accompanying drawings.

100, 200, 300‧‧ ‧ protective cover

110‧‧‧The inner layer of the protective cover

111, 211‧‧‧ bottom plate

111a, 211a‧‧‧ bottom surface of the bottom plate

111b‧‧‧ Upper surface of the bottom plate

112, 212, 312‧‧‧ first cover

113, 213, 313‧‧‧ second cover

114, 214, 314‧‧‧ third cover

114a, 214a‧‧‧ lower surface of the third cover

114b‧‧‧Top surface of the third cover

120‧‧‧ protective cover outer layer

121‧‧‧First rotating part

122‧‧‧Second rotating parts

123, 223‧‧‧ third rotating parts

130‧‧‧First joint

140‧‧‧Second joint

180‧‧‧ fixed plate

182, 382‧‧‧ card hook

184‧‧‧ kit

250, 350‧ ‧ support

360‧‧‧Protruding

370‧‧‧Rotating mechanism

380‧‧‧ Connection structure

390‧‧‧Connecting parts

500‧‧‧Portable electronic devices

600‧‧‧ input device

M11‧‧‧First magnetic component

M12‧‧‧Second magnetic component

R1‧‧‧ first direction

R2‧‧‧ second direction

θ‧‧‧Support angle

Α‧‧‧first tilt angle

Β‧‧‧second tilt angle

Figure 1A is a top plan view of a protective cover in accordance with a first embodiment of the present invention.

Fig. 1B is a side view showing a protective cover in accordance with a first embodiment of the present invention.

FIG. 1C is a side view showing the protective cover of the first embodiment of the present invention when the portable electronic device is housed.

FIG. 1D is a side view showing the protective cover according to the first embodiment of the present invention when supporting the portable electronic device.

FIG. 1E is a schematic diagram showing a method for supporting a portable electronic device according to a first embodiment of the present invention.

FIG. 1F is a schematic diagram showing another method of supporting a portable electronic device according to the first embodiment of the present invention.

2A is a top view of a protective cover in accordance with a second embodiment of the present invention.

FIG. 2B is a side view of the protective cover according to the second embodiment of the present invention when supporting the portable electronic device.

Figure 3A is a top plan view of a protective cover in accordance with a third embodiment of the present invention.

FIG. 3B is a schematic view showing the protective cover joint structure according to the third embodiment of the present invention.

FIG. 3C is a schematic view showing a protective cover joint structure according to a third embodiment of the present invention.

First embodiment

Please refer to FIGS. 1A and 1B, and FIG. 1A illustrates the first aspect of the present invention. A top view of the protective cover 100 of an embodiment, and FIG. 1B is a side view of the protective cover 100 in accordance with the first embodiment of the present invention.

The protective cover 100 of the first embodiment of the present invention includes a protective cover inner layer 110 and a protective cover outer layer 120. The protective cover inner layer 110 is composed of a plurality of plate members, including a bottom plate 111 adjacent to the casing, a first cover plate 112, a second cover plate 113 and a third cover plate 114. The bottom plate 111 has a bottom surface 111b and a bottom surface 111a. The third cover 114 has a third cover upper surface 114b and a third cover lower surface 114a. The upper and lower surfaces are opposite concepts. For example, the bottom plate upper surface 111b and the third cover upper surface 114b are the same side surface of the protective cover 100, and the bottom plate lower surface 111a and the third cover lower surface 114a are the same side surface of the protective cover 100, and the bottom plate upper surface 111b and The third cover upper surface 114b, the bottom plate lower surface 111a and the third cover lower surface 114a are surfaces facing the protective cover 100.

The outer layer 120 of the protective cover is made of a flexible material, such as a cortical material, to provide flexible connection and bending between the panels. The protective cover outer layer 120 includes a first rotating member 121, a second rotating member 122 and a third rotating member 123. The first rotating member 121 is flexibly connected between the bottom plate 111 and the first cover 112 so that the bottom plate 111 and the first cover 112 can be relatively bent. The second rotating member 122 is flexibly connected between the first cover 112 and the second cover 113 so that the first cover 112 and the second cover 113 can be relatively bent. The third rotating member 123 is flexibly connected between the second cover plate 113 and the third cover plate 114 so that the second cover plate 113 and the third cover plate 114 can be relatively bent. Thereby, the plurality of plates of the protective cover 100 can be relatively bent, so that the protective cover 100 covers or supports the portable electric device. Sub-device.

In this embodiment, the bottom plate 111 has a first joint member 130, and the third cover plate 114 has a second joint member 140. Therefore, the bottom plate 111 and the third cover plate 114 can be coupled by the first joint member 130 and the second portion. The bonding members 140 are coupled to each other such that the protective cover 100 covers or supports the portable electronic device. Referring to FIG. 1B, the first bonding component 130 of the embodiment may include a first magnetic component M11, and the second bonding component 140 may include a plurality of second magnetic components M12, a first magnetic component M11 and the second magnetic components. The elements M12 can attract each other. For example, the first magnetic element M11 can be a magnetic material such as a large-area iron plate, and the second magnetic element M12 can be a small-area magnet. Thus, the first magnetic element M11 and the like The second magnetic component M12 can be attracted to each other, so that the second bonding component 140 can be selectively combined with the first bonding component 130 of the bottom plate 111 at one of a plurality of bonding positions; thus the first magnetic component M11 is larger. The weight of the area iron plate helps the bottom plate 111 to be stably placed on the supporting table; while reducing the amount of magnets used by the second magnetic element M12, the weight of the third cover plate 114 is reduced, and the user can flip the third cover plate. 114. In addition, the first coupling member 130 and the second coupling member 140 of the present invention are not limited to the magnetic components, as long as they are mutually adjustable materials, such as fastening members and/or devil felt adhesives, etc. Within the scope of protection of the invention.

Referring to FIG. 1B, in the embodiment, when the third cover 114 of the protective cover 100 rotates toward the bottom plate 111 in the first direction R1, the protective cover 100 can receive and cover the portable electronic device; The third cover plate 114 rotates toward the bottom plate 111 in a second direction R2 opposite to the first direction R1, the protective cover 100 Can support portable electronic devices. These will be described separately below.

1C and 1D, wherein FIG. 1C is a side view of the protective cover 100 according to the first embodiment of the present invention when the portable electronic device 500 is housed, and FIG. 1D is a first embodiment of the present invention. A side view of the protective cover 100 when supporting the portable electronic device 500. The portable electronic device 500 is mounted on the first cover 112 of the protective cover 100. The method of installing the portable electronic device 500 will be described in the following descriptions of FIGS. 1E and 1F.

Referring to FIG. 1C, when the protective cover 100 is accommodating the portable electronic device 500, the first cover 112, the second cover 113, and the third cover 114 are rotated counterclockwise toward the bottom plate 111 in the first direction R1. The third cover upper surface 114b is adjacent to the bottom surface 111a of the bottom plate, so that the second joint member 140 is coupled to the first joint member 130 of the bottom plate 111. At this time, the bottom plate 111 and the third cover plate 114 cover one side of the portable electronic device 500, and the first cover plate 112 and the second cover plate 113 cover the opposite side of the portable electronic device 500, and the bottom plate The first cover 112 , the second cover 113 , and the third cover 114 are parallel to each other to cover the portable electronic device 500 , so that the protective cover 100 completely covers the portable electronic device 500 .

Referring to FIG. 1D, when the protective cover 100 supports the portable electronic device 500, the first cover 112 still rotates counterclockwise in the first direction R1, but the second cover 113 and the third cover 114 are opposite. The second direction R2 in the first direction R1 rotates clockwise toward the bottom plate 111, and the third cover lower surface 114a is adjacent to the bottom surface 111a of the bottom plate, so that the second joint member 140 selectively connects with the first joint member 130 of the bottom plate 111. Interacting with each other in different combinations for users to adjust their own portability The support angle of the electronic device 500. At this time, the first cover 112 is bent relative to the bottom plate 111, the second cover 113 is bent relative to the first cover 112, and the third cover 114 is bent relative to the second cover 113, and the third cover One of the portions 114 extends to the bottom surface 111a of the bottom plate. The remaining portion of the third cover plate 114 and the first cover plate 112 and the second cover plate 113 form a support structure of a triangular structure to support the portable electronic device 500.

As shown in FIG. 1D, the protective cover 100 of the present embodiment can be coupled to different bonding positions by changing the third cover plate 114 and the bottom plate 111, for example, adjusting the plurality of second magnetic elements M12 of the second bonding member 140. The position at which the first magnetic component M11 of the first bonding member 130 is attracted to adjust the supporting angle of the portable electronic device 500. When the area of the third cover plate 114 extending to the lower surface 111a of the bottom plate is larger, the inclination angle of the first cover plate 112 with respect to the third cover plate 114 is also larger, so that the support angle of the larger (or steeper) inclination can be used. Portable electronic device 500.

In addition, please refer to FIG. 1A , the second bonding member 140 of the third cover plate 114 can be disposed on a side away from the side of the second cover plate 113, so as to provide a wider space for adjusting the portable electronic device. 500 support angle.

In addition, the bottom plate 111 of the protective cover 100 of the present embodiment can also be used to carry an input device 600, such as a keyboard, which is mounted on the upper surface 111b of the bottom plate, wherein the upper surface 111b of the bottom plate is opposite to the lower surface 111a of the bottom plate. When the protective cover 100 houses the portable electronic device 500, the input device 600 is also accommodated in the protective cover 100; when the protective cover 100 supports the portable electronic device 500 for the user to operate, the user can simultaneously borrow The command is input by the input device 600 mounted on the upper surface 111b of the bottom plate.

In addition, although the first cover 112 and the second cover 113 are the same length, the first cover 112 and the second cover 113 may have different lengths in the practical application. The length of the plate 112 and the second cover 113 is not a limitation of the present invention.

1E and FIG. 1F, FIG. 1E is a schematic diagram showing a method for supporting the portable electronic device 500 according to the first embodiment of the present invention, and FIG. 1F is a first embodiment of the present invention. A schematic diagram of another method of protecting the portable electronic device 500 by the protective cover 100.

In this embodiment, the portable electronic device 500 can be mounted on the first cover 112 of the protective cover 100 in any manner. For example, as shown in FIG. 1E and FIG. 1F, the first cover 112 may have a fixing plate 180 for mounting the portable electronic device 500 on the first cover 112. The fixing plate 180 is only fixed on the first cover 112. When the first cover 112 is bent relative to the bottom plate 111 or the second cover 113, the fixing plate 180 will be bent together with the first cover 112 relative to the other cover plates. fold. Therefore, when the protective cover 100 supports the portable electronic device 500, the fixed plate 180 allows the portable electronic device 500 to be mounted on the first cover 112 for the user to operate.

In this embodiment, a limiting structure is disposed on the fixing plate 180 to place the portable electronic device 500 on the fixing plate 180. For example, in FIG. 1E, the limiting structure may be a hook 182 disposed at four corners of the fixing plate 180. Each of the hooks 182 may have a slot for receiving the portable electronic device 500. Alternatively, as shown in FIG. 1F, the limiting structure may be a kit 184 disposed around the fixed board 180. The kit 184 may be slightly larger than the portable electronic device 500, and may have a slot structure (eg, The same manner as the hook 182 of FIG. 1E is used to accommodate the portable electronic device 500. Alternatively, the kit 184 can also be a cortical material structure to receive the portable electronic device 500 in the cortical material structure.

Second embodiment

2A and 2B, FIG. 2A is a top view of the protective cover 200 according to the second embodiment of the present invention, and FIG. 2B is a second embodiment of the protective cover 200 supporting the portable electronic device according to the second embodiment of the present invention. Side view of the device 500. The protective cover 200 of the second embodiment of the present invention is different from the protective cover 100 of the first embodiment in the design of the connection between the second cover 213 and the third cover 214, and the structure and function of the remaining similarities are no longer Narration.

As shown in FIG. 2A, the third cover 214 of the protective cover 200 of the second embodiment of the present invention has a support portion 250 protruding toward the second cover 213 on a side adjacent to the second cover 213. The support portion 250 is a part of the third cover plate 214 and is formed in a cutting manner, so that the support portion 250 of the third cover plate 214 is not connected to the second cover plate 213, and the rest of the third cover plate 214 is borrowed. The second rotating member 223 is flexibly connected to the second cover 213, so that the second cover 213 and the third cover 214 can still be relatively bent.

As shown in FIG. 2B, when the protective cover 200 supports the portable electronic device 500, a portion of the third cover plate 214 extends to the bottom surface 211a of the bottom plate, and the lower surface 214a of the third cover plate abuts the lower surface 211a of the bottom plate. The two bonding members 140 are selectively coupled to the first bonding member 130 of the bottom plate 211 in different bonding positions for the user to adjust the supporting angle of the portable electronic device 500. At this time, the first The portion of the three cover plates 214 that does not extend to the bottom plate 211 and the first cover plate 212 and the second cover plate 213 form a support base to support the portable electronic device 500. Moreover, since the third cover 214 has the support portion 250, when the protective cover 200 supports the portable electronic device 500, the first cover angle 213 of the second cover plate 213 relative to the third cover plate 214 and the second cover plate 213 The second inclination angle β with respect to the support portion 250 is complementary to each other, and the second inclination angle β is larger than the first inclination angle α, so the support portion 250 can increase the contact area between the protective cover 200 and the standing surface (for example, the table top). Moreover, the friction between the standing surface and the standing surface is increased, so that the portable electronic device 500 can be stably supported to prevent the portable electronic device from being dumped due to the influence of external force or vibration, and at the same time The portable electronic device 500 has a wider range of support angles θ, which may range from 30 to 80 degrees.

Third embodiment

Please refer to FIG. 3A, FIG. 3B and FIG. 3C, FIG. 3A is a top view of the protective cover 300 according to the third embodiment of the present invention, and FIG. 3B is a third embodiment of the protective cover 300 according to the third embodiment of the present invention. FIG. 3C is a schematic view showing the protective cover 300 in combination with the connection structure 380 according to the third embodiment of the present invention. The protective cover 300 of the third embodiment of the present invention is different from the protective covers 100 and 200 of the first and second embodiments in that the first cover plate 312 further has a design of the rotating mechanism 370 and the connecting structure 380, and the rest of the structure is the same. And functions will not be described again.

As shown in FIG. 3A, the first cover 312 of the protective cover 300 of the third embodiment of the present invention has a protrusion 360 on a side adjacent to the second cover 313. The structure of the protrusion 360 is similar to the support portion 250 in the second embodiment, which is A portion of the first cover 312 is formed in a cutting manner, so that the protruding portion 360 of the first cover 312 is not connected to the second cover 313, and the remaining portion of the first cover 312 is rotated by the second The member 322 is flexibly connected to the second cover 313, so that the first cover 312 and the second cover 313 can still be relatively bent.

The first cover 312 of the protective cover 300 of the present embodiment has a rotating mechanism 370. The rotating mechanism 370 can be disposed on the protruding portion 360 and can freely rotate relative to the protruding portion 360 of the first cover plate 312. By the addition of the protruding portion 360, the overall structure of the first cover plate 312 can be elongated to make the structure relatively stable.

The protective cover 300 of the present embodiment further includes a connecting structure 380. The portable electronic device 500 is disposed on the connecting structure 380, for example, by the hook 382 (the same as the card of the first embodiment). The manner of the hook 182) is set on the connection structure 380. The connecting structure 380 has a connecting member 390. The connecting member 390 can be coupled with the rotating mechanism 370 on the first cover 312, and thus can be engaged with the rotating mechanism 370 so that the connecting structure 380 is rotatably It is fixed to the first cover 312. For example, the rotating mechanism 370 and the connecting member 390 are, for example, shackles that can be correspondingly engaged. Thereby, the connecting structure 380 is free to rotate at various angles with respect to the first cover plate 312. In this way, the portable electronic device can be rotated relative to the first cover 312 by the correspondingly engaged rotating mechanism 370 and the connecting member 390, so that the user can freely select the horizontal direction or the longitudinal direction. Place the portable electronic device.

In addition, the third cover 314 of the protective cover 300 of the embodiment may have a structure of the support portion 350 similar to that of the second embodiment, so that the structure can be more stably The portable electronic device is supported to prevent the portable electronic device from being dumped due to the influence of external force or vibration, and also provides a wider range of support angles of the portable electronic device.

The protective cover disclosed in the above embodiments of the present invention has the advantages of simple structure and convenient use, and the mutual bending of the plates adjacent to each other and the first and second coupling members can mutually adjust the combined position design. To cover or support the portable electronic device. When the portable electronic device is covered, the bottom plate, the first cover, the second cover and the third cover enclose the portable electronic device in parallel with each other, and the upper surface of the third cover is close to the lower surface of the bottom plate, so that The second bonding component is coupled to the first bonding component of the bottom plate to completely cover the portable electronic device; when supporting the portable electronic device, the lower surface of the third cover plate is close to the lower surface of the bottom plate, so that the second bonding component is selected The first binding member of the bottom plate is combined with one of the plurality of bonding positions for the user to adjust the supporting angle of the portable electronic device.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100‧‧‧ protective cover

111‧‧‧floor

111a‧‧‧ lower surface of the bottom plate

112‧‧‧First cover

113‧‧‧second cover

114‧‧‧ third cover

114a‧‧‧The lower surface of the third cover

130‧‧‧First joint

140‧‧‧Second joint

500‧‧‧Portable electronic devices

600‧‧‧ input device

M11‧‧‧First magnetic component

M12‧‧‧Second magnetic component

R2‧‧‧ second direction

Claims (13)

A protective cover for covering or supporting a portable electronic device, the protective cover comprising: a bottom plate having a bottom surface and a first joint; a first cover for flexibly connecting the a second cover plate for flexibly connecting the first cover plate; a third cover plate for flexibly connecting the second cover plate, the third cover plate having a second coupling member, a third cover upper surface and a third cover lower surface; and a connecting structure, the connection structure has a connecting member, the portable electronic device is disposed on the connecting structure; wherein the first cover Forming a protrusion on a side of the plate adjacent to the second cover plate, the protrusion is provided with a rotating mechanism, and the connecting member is correspondingly engaged with the rotating mechanism, the portable electronic device Rotating relative to the first cover by correspondingly engaging the connecting member with the rotating mechanism; wherein, when the protective cover covers the portable electronic device, the bottom plate, the first cover, The second cover and the third cover enclose the portable electronic device in parallel with each other And the upper surface of the third cover is adjacent to the lower surface of the bottom plate, so that the second bonding component is coupled to the first bonding component of the bottom plate; wherein, when the protective cover supports the portable electronic device, the first a cover plate is bent relative to the bottom plate, the second cover plate is bent relative to the first cover plate, the third cover plate is bent relative to the second cover plate, and the lower surface of the third cover plate is adjacent to the cover plate a lower surface of the bottom plate, the second joint member being combined with the first joint member. The protective cover of claim 1, wherein the first binding member and the second coupling member are selectively coupled to a first bonding position when the protective cover supports the portable electronic device. One of the second bonding positions, when the first bonding member and the second bonding member are coupled to the first bonding position, the first cover has a first angle with respect to the bottom plate, when the first When the first binding member is coupled to the second bonding position, the first cover has a second angle with respect to the bottom plate, and the first angle is greater than the second angle. The protective cover of claim 1, wherein when the protective cover covers the portable electronic device, the third cover rotates to the bottom plate in a first direction, when the protective cover supports the In the case of the portable electronic device, the third cover is rotated toward the bottom plate in a second direction, wherein the first direction is opposite to the second direction. The protective cover of claim 1, wherein the second engaging member of the third cover is disposed on a side away from a side of the second cover. The protective cover of claim 2, wherein the first bonding member comprises a first magnetic component, the second bonding component comprises a plurality of second magnetic components, the first magnetic component and the second magnetic components The elements are attracted to each other such that the second coupling member is selectively coupled to the first coupling member to one of a plurality of bonding positions. The protective cover of claim 5, wherein the weight of the first magnetic element is greater than the sum of the weights of the plurality of second magnetic elements, such that the weight of the first magnetic element helps to securely place the bottom plate a support surface. For example, the protective cover described in claim 1 of the patent scope, wherein the protective cover is further included The input substrate has an upper surface of the bottom plate, and the input device is disposed on the upper surface of the bottom plate, wherein the upper surface of the bottom plate is opposite to the lower surface of the bottom plate. The protective cover of the first aspect of the invention, wherein the protective cover covers the portable electronic device, the bottom plate and the third cover cover the first side of the portable electronic device, and The third cover covers the bottom plate, and the first cover and the second cover cover the second side of the portable electronic device, and the first side and the second side are parallel to each other. The protective cover of claim 1, wherein when the protective cover supports the portable electronic device, a part of the third cover extends to the bottom of the bottom plate, and the portion of the third cover The bottom plate selectively overlaps each other at a plurality of bonding locations. The protective cover of claim 9, wherein the larger the area of the third cover overlapping the bottom plate, the greater the inclination angle of the first cover relative to the third cover, Adjusting the protective sleeve supports the support angle of the portable electronic device. The protective cover of claim 9, wherein when the protective cover supports the portable electronic device, the third cover does not extend to the remaining portion below the bottom plate and the first cover, the first The two cover plates form a triangular structure. A protective cover for covering or supporting a portable electronic device, the protective cover comprising: a bottom plate having a bottom surface of the bottom plate and a first joint member; a first cover to flexibly connect the bottom plate; a second cover to flexibly connect the first cover; and a third cover to flexibly connect the second cover The third cover has a second joint, a third cover upper surface and a third cover lower surface, and the third cover has a side opposite to the second cover a supporting portion protruding from the second cover; wherein the bottom plate, the first cover, the second cover and the third cover are parallel to each other when the protective cover covers the portable electronic device Covering the portable electronic device, and the upper surface of the third cover is adjacent to the lower surface of the bottom plate, so that the second joint is coupled to the first joint of the bottom plate; wherein, when the protective cover supports the portable In the electronic device, the first cover is bent relative to the bottom plate, the second cover is bent relative to the first cover, the third cover is bent relative to the second cover, and the third The lower surface of the cover plate is adjacent to the lower surface of the bottom plate, so that the second joint member is combined with the first joint member, wherein the second cover plate is opposite to the third cover plate The plate has a first inclination angle, the second cover plate has a second inclination angle with respect to the support portion, the first inclination angle is complementary to the second inclination angle, and the second inclination angle is greater than the first inclination angle . The protective cover of claim 12, wherein when the protective cover supports the portable electronic device, an angle formed between the first cover and the third cover ranges from 30 to 80 degrees.