TWI613539B - Cover - Google Patents

Abstract

The present invention discloses a protective cover comprising a first plate body, a second plate body, an input device, a connecting seat and a plurality of fixing members. The protective cover can be changed into a plurality of types, and the protective member is used to maintain the protective cover in the stated form.

Description

protective case

The case relates to a protective cover, in particular to a protective cover for an electronic device.

At present, mobile devices are becoming more and more popular, and there are many protection measures for mobile devices in the market. Protective covers are one of the common ones. In addition, mobile devices often cooperate with other peripheral electronic devices, such as keyboards, to expand the flexibility of use. And each manufacturer continues to develop simple, intuitive and versatile accessories while maintaining the minimum size of mobile devices.

The present invention provides a protective cover suitable for an electronic device. The protective cover comprises: a first plate body, a second plate body, an input device, a connecting seat and a plurality of fixing elements. The first plate body comprises a plurality of sub-plate blocks arranged alternately and in parallel, a plurality of fold line regions and at least one flexible region. The second plate body is connected to the flexible region on one side of the first plate body. The input device is disposed on the second board. The connecting seat is disposed in a space adjacent to the second board. The fixing element is disposed on at least one of the first plate body and the second plate body. Wherein, the first plate body is bent along the at least one fold line region to form a protective sleeve to form a first shape; the first plate body is inverted relative to the second plate body to form a protective sleeve to form a second shape.

By applying the embodiment of the present invention, the daughter board blocks can form different angles with each other, and the first type is maintained by the fixing component, whereby the user can freely adjust the viewing angle of the required electronic device to view the electronic device while using the input device. . When not in use, the protective cover can also be changed to the second type to protect the electronic device and the input device.

In the following, a plurality of embodiments of the present invention will be disclosed in the drawings. For the sake of clarity, a number of practical details will be described in the following description. However, it should be understood that these practical details are not applied to limit the case. That is to say, in some implementations of this case, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Referring to FIG. 1 to FIG. 3, the protective cover 100 is suitable for an electronic device 900. The protective cover 100 includes a first plate body 110, a second plate body 120, an input device 130, a connecting base 140, and a plurality of fixing members 150. The electronic device 900 can be a screen-equipped electronic device 900 such as a mobile phone or a tablet computer.

The first plate body 110 includes a plurality of sub-plate blocks 111, a fold line region 113 and a flexible region 114 which are alternately arranged in parallel and arranged in parallel. In one embodiment, the area of the flexible region 114 is larger than the area of the fold line region 113. The first plate body 110 can be bent along at least one of the fold line regions 113 and fixed by the fixing member 150 to form a bent shape, thereby forming a first type as shown in FIG. 3, for example, a bracket type, The electronic device 900 is supported. In one embodiment, there are four daughter board blocks 111, which in turn are daughter board blocks 111a, 111b, 111c, 111d. There are two flexible regions 114. The flexible region 114a is adjacent to the daughter board block 111a, and the flexible area 114b is adjacent to the daughter board block 111c and the daughter board block 111d. There are two fold line areas 113. The fold line area 113a is located between the daughter board block 111a and the daughter board block 111b, and the fold line area 113b is located between the daughter board block 111b and the daughter board block 111c.

The second plate body 120 is adjacent to the flexible region 114a of the first plate body 110, so that the first plate body 110 is opposite to the second plate body 120 and opposite to each other to form an accommodation space 200 therebetween to form a first plate body 120. The second type, for example, a cladding type, houses the electronic device 900 as shown in FIG.

Referring to FIG. 1 and FIG. 2, the input device 130 is disposed on the second plate body 120. The input device 130 can be a keyboard, a touchpad, a tablet, a touch screen or other device that can perform an input operation by a user. Here, the input device 130 is a keyboard and a touchpad.

Referring to FIGS. 1 to 3, the connector 140 is disposed adjacent to the flexible region 114a of the second board 120. The input device 130 is electrically connected to the connector 140 and is electrically connected to the connector of the electronic device 900 via the connector 140. . Here, the position and shape of the connection pin and the pin of the connector 140 match each other. In one embodiment, the foot position can be implemented with a pogo pin. In addition, the connector 140 can transmit power or data signals between the input device 130 and the electronic device 900.

The fixing component 150 is disposed on at least one of the first board body 110 and the second board body 120 to fix the supporting angle to support the electronic device 900 when the angle between the sub-board blocks 111 is changed. The fixing member 150 can be a magnet, a suction cup, a devil felt or the like. Referring to FIGS. 1 and 3 together, the fixing member 150 includes a plurality of first fixing members 151 and a plurality of second fixing members 152. The first fixing component 151 is disposed away from the daughter board block 111d of the second board 120, and the second fixing component 152 is disposed on the second board body 120. Here, the first fixing member 151 is disposed in the immediate vicinity of the side of the first plate body 110 away from the second plate body 120 (ie, the side of the sub-plate block 111d away from the second plate body 120). The second fixing member 152 is disposed in the second plate body 120 adjacent to the first plate body 110, and is arranged in parallel along the long axis direction perpendicular to the fold line region 113 in at least one row, and the number and position of the rows are respectively The first fixing member 151 corresponds to the second behavior example. However, in an embodiment, the second fixing members 152 may also be arranged in a row only in a direction perpendicular to the long axis of the fold line region 113, and only one first fixing member 151 is required to selectively correspond to one of the second fixing members 152. fixed. As shown in FIG. 3, in the first type of the protective cover 100, the daughter board block 111d having the first fixing member 151 is disposed under the second board body 120, and the first fixing member 151 is selectable and corresponding to each other. The second fixing element 152 of the same order is fixed. As shown in FIG. 3, the first fixing member 151 is fixed to the second fixing member 152a of the first order. Referring to Fig. 4, the first fixing member 151 is fixed to the second fixing member 152b of the second order. Referring additionally to Figure 5, the first fixation element 151 is secured to the second order of the second fixation element 152c. Referring to FIG. 3 to FIG. 5, according to the first fixing member 151 and the second fixing member 152 in different order, the supporting angle θ of the first type can be adjusted (the electronic device 900 and the daughter board block of the first board 110) The angle of 111d, that is, the angle between the electronic device 900 and the plane of the second plate 120).

In one embodiment, a portion of the fold line region 113 (here, the fold line region 113a and the fold line region 113b) has a width ranging from 0.1 mm to 1 mm, such that the daughter plate block 111 on both sides of the fold line region 113 can be flipped. Activities and do not interfere with each other. Moreover, the daughter board blocks 111 on both sides of the fold line area 113 can be abutted against each other to provide supporting force for supporting the electronic device 900. As shown in FIG. 5, the daughter board blocks 111a, 111b on both sides of the fold line region 113a abut each other to provide a supporting force for supporting the electronic device 900. In an embodiment, as shown in FIG. 3, in a first type in which the first fixing member 151 is fixed to the second fixing member 152 of the first order, the daughter board block 111b is located on both sides of the folding line 113b. The 111c abut each other to provide a supporting force for supporting the electronic device 900.

As shown in FIG. 3, the fixation element 150 can also include at least one third fixation element 153. In this embodiment, the third fixing member 153 is exemplified by two. The third fixing component 153 is disposed adjacent to the daughter board block 111a of the second board 120 to be fixed to the electronic device 900 when the electronic device 900 is connected to the connector 140. Therefore, the electronic device 900 can be stably supported on the protective cover 100 when the electronic device 900 is supported by the protective cover 100, so as to prevent the electronic device 900 from tipping over the input device 130 when the electronic device 900 is inadvertently moved or when the protective cover 100 is moved. .

Referring to Figures 1 and 2, the fixation element 150 can also include at least a fifth fixation element 155. In this embodiment, the fifth fixing component 155 is exemplified by two. The fifth fixing element 155 is disposed on the second plate body 120. In the second mode, the first plate body 110 and the second plate body 120 are fixed to each other via the first fixing element 151 and the fifth fixing element 155 to maintain the first Type II.

As shown in FIG. 1 , the fixing component 150 further includes a plurality of seventh fixing components 157 disposed on the connecting base 140 . In this embodiment, the seventh fixing component 157 is exemplified by two, and is disposed on both sides of the connecting base 140 to position the connection between the electronic device 900 and the connector 140, and the connector 140 and the electronic device are connected. 900 is fixed to each other.

Refer to Figures 6 through 8 in combination. In the protective cover of the second embodiment of the present invention, the first fixing member 151' is disposed away from the sub-plate block 111d of the second plate body 120, and is arranged in at least one row in a direction parallel to the minor axis of the flexible region 114a. In this embodiment, two behavior examples are described. The number and position of the rows in which the first fixing member 151 is arranged correspond to the second fixing members 152' provided on the second plate body 120, respectively. In the first form, the daughter board block 111d having the first fixing member 151 is located below the second board body 120, and the second fixing member 152' is selectable to be fixed with the first fixing member 151' in the same order as the corresponding row. To adjust the support angle of the first type, as shown in Figure 7 and Figure 8.

In an embodiment, the fixing component 150 further includes a plurality of seventh fixing components 157 disposed on the connecting base 140. In the first form, the seventh fixing member 157 can be fixed to the first fixing member 151'.

As shown in FIG. 6, the fixing component 150 can further include at least one fourth fixing component 154 and at least one fifth fixing component 155. The fourth fixing component 154 and the fifth fixing component 155 are respectively exemplified by two. The fourth fixing member 154 is disposed away from the daughter board block 111d of the second board 120. Here, the fourth fixing member 154 is disposed adjacent to the side of the first board 110 (ie, one side of the sub-board block 111d away from the second board 120). The fifth fixing member 155 is disposed on the second plate body 120 to fix the first plate body 110 and the second plate body 120 to each other via the fourth fixing member 154 and the fifth fixing member 155 in the second type, as shown in FIG. 9 . Shown.

As shown in FIG. 10 to FIG. 12, the protective cover 100 of the third embodiment of the present invention includes the first plate body 110, the second plate body 120, the input device 130, the connecting base 140 and the plurality of fixing elements 150, as in the previous embodiment. The same places are not repeated here, and the differences are explained below.

The daughter board block 111 of the present embodiment does not have the aforementioned daughter board block 111d, that is, the daughter board block 111 of the present embodiment has three, which are the daughter board blocks 111a, 111b, and 111c. There are two flexible regions 114. The flexible region 114a is connected to the daughter plate block 111a, and the flexible region 114b is connected to the daughter plate block 111c. In one embodiment, there are two fold line areas 113. The fold line area 113a is located between the daughter board block 111a and the daughter board block 111b, and the fold line area 113b is located between the daughter board block 111b and the daughter board block 111c.

In the present embodiment, the protective cover 100 further includes an adapter 160 having a first joint 161 and a second joint 162 disposed on the first plate body 110 away from the side of the second plate 120. The region 114b is away from one side of the second plate body 120. When the daughter board block 111 is turned toward the second board 120 and curled into the first type (as shown in FIG. 12), the first connector 161 is connected to the connector 140, and the second connector 162 is connected to the electronic device 900. Herein, the position and shape of the connection pin and the connection between the connector 140 and the adapter 160 match each other. The pin can be implemented as a pogo pin. The connector 140 and the adapter 160 are configured to transmit power or data signals between the input device 130 and the electronic device 900. Since there is no need to connect the wires between the connecting seat 140 and the adapter 160, the problem of wire damage caused by the bending of the first plate body 111 can be avoided.

Referring to Figures 10 and 12 together, the fixation element 150 includes at least a sixth fixation element 156. In the present embodiment, the two sixth fixing members 156 will be described as an example. The sixth fixing component 156 is disposed adjacent to the daughter board block 111c of the adapter 160, so that when the daughter board block 111 is turned toward the second board body 120 and is curled into the first type, when the electronic device 900 also has a corresponding The sixth fixing member 156 can be fixed to the electronic device 900 while the other fixing members are used. Therefore, the electronic device 900 can be stably supported on the protective cover 100 when the electronic device 900 is supported by the protective cover 100, so as to prevent the electronic device 900 from tipping over the input device 130 when the electronic device 900 is inadvertently moved or when the protective cover 100 is moved. .

As shown in FIG. 10, the adapter base 160 can also be provided with a plurality of eighth fixing members 158 for correspondingly positioning with the seventh fixing member 157 on the connector 140 when the first type is as shown in FIG. The connection positions between the connector 140 and the adapter 160 are mutually positioned, and the connector 140 and the adapter 160 are fixed to each other. In addition, the adapter 160 can also assist in positioning and fixing when the electronic device 900 is connected to each other.

FIG. 13 is a schematic view showing another first type of the protective cover 100 according to the third embodiment of the present invention. The fixing component 150 can also include a plurality of fifth fixing components 155 disposed on the second board 120 to be fixed to the adapter 160 to which the electronic device 900 is attached, thereby changing the supporting angle of the electronic device 900 and fixing.

As shown in FIG. 14 to FIG. 16 , the fourth embodiment of the present invention includes the first plate body 110, the second plate body 120, the input device 130, the connecting base 140 and the plurality of fixing elements 150, which are the same as the first embodiment. The place is not repeated here, and the differences are explained below.

Referring to FIGS. 14 and 16, the fixing member 150 includes at least one fourth fixing member 154 and at least one nin fixing member 159. The fourth fixing element 154 and the ninth fixing element 159 are respectively exemplified by two. The fourth fixing member 154 is disposed on the first plate body 110 away from one side of the second plate body 120. Here, the fourth fixing member 154 is disposed adjacent to the side of the first board 110 (ie, one side of the sub-board block 111d away from the second board 120). The ninth fixing member 159 is disposed on the first plate body 110 adjacent to the fold line region 113a of the second plate body 120, so that the daughter plate block 111 is turned over toward the second plate body 120 to be curled and contacted at the position of the flexible region 114b. The support surface of the second board 120 is placed, and the sub-board blocks 111a, 111b are in contact with the electronic device 900 to form a first type; at this time, the fourth fixing member 154 and the ninth fixing member 159 are fixed to each other, and The first type can be maintained. Here, the ninth fixing member 159 is located on the sub-plate block 111a.

As shown in FIG. 16, the fixing component 150 may further include at least one third fixing component 153, and two are exemplified herein. The third fixing component 153 is disposed adjacent to the daughter board block 111a of the second board 120 to be fixed to the electronic device 900 when the electronic device 900 is connected to the connector 140. Therefore, the electronic device 900 can be stably supported on the protective cover 100 when the electronic device 900 is supported by the protective cover 100, so as to prevent the electronic device 900 from tipping over the input device 130 when the electronic device 900 is inadvertently moved or when the protective cover 100 is moved. .

As shown in FIG. 18, when the user lifts the electronic device 900 on the protective cover 100 of the first type as shown in FIG. 16, the triangular prisms formed by the daughter board blocks 111b, 111c, and 111d will face the daughter board block. The 111a is flipped so that the protective cover 100 assumes the first type as shown in FIG. 17, and the daughter board block 111 is only in contact with the electronic device 900 by the daughter board block 111a. Since the ninth fixing member 159 is disposed on the position of the daughter board block 111a adjacent to the folding line portion 111a, the fourth fixing member 154 can be continuously fixed to each other to maintain the first type.

As shown in FIG. 19, after the electronic device 900 is connected to the connector 140, the daughter board block 111d having the fourth fixing member 154 is erected to abut the electronic device 900, and the electronic device 900 is fixed by the fourth fixing member 154. Thereby, the electronic device 900 can be supported at another support angle.

As shown in FIG. 20, in comparison with FIG. 19, the third fixing member 153 is disposed on the daughter board block 111b adjacent to the daughter board block 111a, in addition to the daughter board block 111a adjacent to the second board body 120a. The third fixing elements 153 are fixed to the electronic device 900. Thereby, the daughter board block 111b and the daughter board block 111c can abut each other to provide more support force than the first type shown in FIG.

Compared with FIG. 16, the first type shown in FIG. 21 is curled by the daughter board blocks 111c, 111d in opposite directions, and the daughter board blocks 111a, 111b are placed in the same contact with the second board 120. The surface is in contact with the electronic device 900 by the flexible region 114b. The fourth fixing member 154 and the ninth fixing member 159 are fixed to each other while maintaining the first type.

The first type shown in Fig. 22 is constituted by the sub-plate blocks 111b, 111b, 111c constituting the triangular prism shown in Fig. 21, and the sub-plate block 111a is overlapped with the sub-plate block 111d.

In summary, by applying an embodiment of the present invention, the daughter board blocks 111 can form different angles with each other, and the first type is maintained by the fixing component 150, whereby the user can freely adjust the angle of view of the desired electronic device 900. To view the electronic device 900 while using the input device 130. When not in use, the protective cover 100 can also be changed to the second type to protect the electronic device 900 and the input device 130.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present case. Anyone skilled in the art can make various changes and refinements without departing from the spirit and scope of the case. Therefore, the scope of protection of this case is considered. The scope defined in the patent application is subject to change.

100: protective cover 110: first plate body 111, 111a, 111b, 111c, 111d: daughter plate block 113, 113a, 113b: fold line region 114, 114a, 114b: flexible region 120: second plate body 130: input Device 140: connector 150: fixing element 151, 151': first fixing element 152, 152', 152a, 152b, 152c: second fixing element 153: third fixing element 154: fourth fixing element 155: fifth fixing Element 156: sixth fixing element 157: seventh fixing element 158: eighth fixing element 159: ninth fixing element 160: adapter 161: first joint 162: second joint 200: accommodating space 900: electronic device θ : support angle

FIG. 1 is a schematic plan view of a protective cover according to a first embodiment of the present invention. FIG. 2 is a schematic view showing a second type of protective cover according to the first embodiment of the present invention. FIG. 3 is a schematic view showing the first type of the protective cover according to the first embodiment of the present invention. FIG. 4 is a schematic view showing another first type of the protective cover according to the first embodiment of the present invention. FIG. 5 is a schematic view showing still another first form of the protective cover according to the first embodiment of the present invention. FIG. 6 is a schematic plan view of a protective cover according to a second embodiment of the present invention. FIG. 7 is a schematic view showing the first type of the protective cover according to the second embodiment of the present invention. FIG. 8 is a schematic view showing another first type of the protective cover according to the second embodiment of the present invention. FIG. 9 is a schematic view showing a second form of the protective cover according to the second embodiment of the present invention. FIG. 10 is a schematic top view of a protective cover according to a third embodiment of the present invention. FIG. 11 is a schematic view showing a second type of protective cover according to a third embodiment of the present invention. FIG. 12 is a schematic view showing a first type of a protective cover according to a third embodiment of the present invention. FIG. 13 is a schematic view showing another first form of the protective cover according to the third embodiment of the present invention. FIG. 14 is a schematic top view of a protective cover according to a fourth embodiment of the present invention. FIG. 15 is a schematic view showing a second type of protective cover according to a fourth embodiment of the present invention. FIG. 16 is a schematic view showing the first type of the protective cover according to the fourth embodiment of the present invention. FIG. 17 is a schematic view showing another first type of the protective cover according to the fourth embodiment of the present invention. FIG. 18 is a schematic view showing the operation according to the fourth embodiment of the present invention. FIG. 19 is a schematic view showing still another first form of the protective cover according to the fourth embodiment of the present invention. FIG. 20 is a schematic view showing still another first form of the protective cover according to the fourth embodiment of the present invention. FIG. 21 is still another schematic diagram of another first type of the protective cover according to the fourth embodiment of the present invention. FIG. 22 is a schematic view showing still another first type of the protective cover according to the fourth embodiment of the present invention.

100: protective cover 110: first plate body 111, 111a, 111b, 111c, 111d: daughter plate block 113, 113a, 113b: fold line region 114, 114a, 114b: flexible region 120: second plate body 130: input Device 140: connector 150: fixing element 151: first fixing element 152, 152a, 152b, 152c: second fixing element 153: third fixing element 155: fifth fixing element 157: seventh fixing element

Claims (15)

A protective cover is suitable for an electronic device, the protective cover comprising: a first plate body, comprising a plurality of sub-plate blocks arranged alternately and in parallel, a plurality of fold line regions and at least one flexible region; and a second plate body, Connected to the flexible region of the first plate; an input device disposed on the second plate; a connecting seat disposed adjacent to the flexible region of the second plate; and a plurality of fixing elements, And at least one of the first plate body and the second plate body, the fixing elements further comprise a plurality of seventh fixing elements disposed on the connecting seat to fix the connecting seat and the electronic device to each other; The first plate is bent along at least one of the fold lines to form the protective sleeve into a first shape. In the first type, the seventh fixing element is fixed to the first fixing element. A plate body is inverted relative to the second plate body to form the protective sleeve into a second form. The protective cover of claim 1, wherein the fixing elements comprise at least one first fixing element disposed on the first plate body and a plurality of second fixing elements disposed on the second plate body, wherein the second parts are The fixing elements are arranged in at least one row along a direction perpendicular to the long axis of the fold line regions, and in the first type, the at least one first fixing member is correspondingly fixed to one of the second fixing members. The protective cover of claim 2, wherein the fixing elements further comprise at least one third fixing component disposed in a plurality of daughter board blocks adjacent to the second board, so that the electronic device is connected to the connector It is fixed with the electronic device. The protective cover of claim 2, wherein the fixing elements further comprise at least one fifth fixing component disposed on the second plate body, and the first plate body and the protective sleeve are in the second type The second plate body is fixed to each other via the first fixing elements and the at least one fifth fixing element. The protective cover of claim 1, wherein the fixing elements comprise a plurality of first fixing elements disposed on the first plate body and at least one second fixing element disposed on the second plate body, wherein the first fixing element The component is arranged in at least one row along a longitudinal direction perpendicular to one of the fold line regions, and in the first type, the at least one second fixing component is correspondingly fixed to one of the first fixing components. The protective cover of claim 5, wherein the fixing elements further comprise at least one third fixing component disposed on the plurality of daughter board blocks adjacent to the second board, so that the electronic device is connected to the connector It is fixed with the electronic device. The protective cover of claim 5, wherein the fixing elements further comprise at least one fourth fixing element disposed on a side of the first plate body and at least one fifth fixing element disposed on the second plate body, When the protective sleeve is in the second type, the first plate body and the second plate body are fixed to each other via the at least one fourth fixing element and the at least one fifth fixing element. A protective cover is suitable for an electronic device, the protective cover comprising: a first plate body, comprising a plurality of sub-plate blocks arranged alternately and in parallel, a plurality of fold line regions and at least one flexible region; and a second plate body, Connecting to the flexible area of the first board; an input device disposed on the second board; a connecting seat disposed adjacent to the flexible area of the second board; and a plurality of fixing elements disposed on at least one of the first board and the second board; and an adapter having a first connector and a second connector disposed on the first board Moving away from the side of the second plate; wherein the first plate is bent along at least one of the fold lines to form the first sleeve, the first joint is connected to the joint, the first joint The two connectors are connected to the electronic device; the first plate body is inverted relative to the second plate body to form the protective cover into a second type. The protective cover of claim 8, wherein the fixing elements further comprise at least one sixth fixing component disposed on the daughter board block adjacent to the adapter, such that the daughter board blocks face the first When the two plates are turned and curled into the first type, the at least one sixth fixing member and the electronic device are fixed to each other. The protective cover of claim 8, wherein the fixing elements comprise a plurality of fifth fixing elements disposed on the second plate body to be fixed with the adapter to fix the protective cover in the first type. A support angle. The protective cover of claim 8, wherein the fixing elements comprise a plurality of seventh fixing elements and a plurality of eighth fixing elements, wherein the seventh fixing elements are disposed on the connecting seat, and the eighth fixing elements are disposed on the rotating The socket is positioned to position the connection between the connector and the adapter, and the connector and the adapter are fixed to each other. A protective cover is suitable for an electronic device, the protective cover comprising: a first plate body, comprising a plurality of sub-board blocks arranged alternately and in parallel, a plurality of fold line regions located between the sub-board blocks, and at least one a flexible plate; a second plate body connected to the flexible region of the first plate body; An input device is disposed on the second board; a connecting seat is disposed adjacent to the flexible area of the second board; and a plurality of fixing elements are disposed on the first board and the second board At least one of the fixing elements includes at least one fourth fixing element and at least one ninth fixing element, the at least one fourth fixing element being disposed on the first plate body away from one side of the second plate body The at least one ninth fixing component is disposed on the first plate body adjacent to the fold line region of the second plate body; wherein the first plate body is bent along at least one of the fold line regions to form the protective cover a first type, wherein the at least one fourth fixing element and the at least one ninth fixing element are fixed to each other when the plurality of sub-plate blocks are turned toward the second plate and are curled into the first type to maintain the first a first type; the first plate is inverted relative to the second plate to form the protective sleeve into a second form. The protective cover of claim 12, wherein after the electronic device is connected to the connector, the daughter board block having the at least one fourth fixing component is erected to abut the electronic device, and the at least one The four fixing elements secure the electronic device. The protective cover of claim 12, wherein the fixing elements comprise at least one third fixing component disposed in the daughter board blocks to be fixed to the electronic device when the electronic device is connected to the connector. The protective cover of claim 12, wherein the fixing elements comprise at least one fourth fixing element and at least one fifth fixing element, the at least one fourth fixing element being disposed on the daughter board away from the second board a block, the at least one fifth fixing component is disposed on the second plate body, wherein the first plate body and the second plate body pass the at least one fourth fixing component and the at least one fifth in the second type The fixing elements are fixed to each other.