Brush of electronic equipment and electronic equipment

Abstract

The utility model relates to a brush of an electronic product and the electronic product. The brush comprises a base material, bristles and an elastic layer, the bristles are opposite to the base material; the elastic layer is provided with a first side and a second side which are oppositely arranged in the direction from the base material to the bristles, the first side of the elastic layer is connected with the base material, and the second side of the elastic layer is connected with the bristles so as to elastically support the bristles in the direction from the base material to the bristles. According to the brush, the elastic layer is arranged between the base material and the bristles, so that a light compression state is always kept between the brush and the rotating shaft. When the flexible screen of the electronic product is flattened, combined and folded at different angles, the brush maintains a relatively stable compression amount due to the existence of the elastic piece, so that a stable dustproof effect can be maintained in different folding states; the brush can be tightly attached to display screens of electronic products of different production batches or different specifications through elastic supporting of the elastic layer, so that the brush can be suitable for the electronic products of different production batches or different specifications.

Description

Technical Field

[0001] The present application relates to the technical field of dustproof structures of electronic equipment, and in particular to a brush for electronic equipment and the electronic equipment. Background Art

[0002] With the development of flexible screen technology, foldable screen mobile phones have been commercialized. When the foldable screen mobile phone is unfolded, the screen is huge, which improves the user's visual experience. When folded, it is comparable to the size of an ordinary mobile phone and is easy to carry. The flexible screen in the foldable screen mobile phone is easily damaged, especially the folding position is prone to aging and damage. In the prior art, a brush is generally attached to the folding shaft of the foldable screen mobile phone, which can reduce the wear of the folding position of the flexible screen and can also play a role in dust prevention and sealing. However. When the mobile phone is combined, unfolded, and at different angles in the middle, the space between the shell and the shaft is different, that is, the compression amount or space of the brush is different. In addition, when the compression amount between the brush and the shaft is relatively large (that is, the space is small), the risk of the brush falling off during rotation increases and the reliability is reduced; when the space between the brush and the shaft appearance is relatively large, the risk of dust particles and foreign matter entering the shaft increases and the dustproof effect is reduced. It is difficult to ensure that the space or compression amount between the brush and the shaft is close in different folding states of the whole machine, which affects the dustproof effect. Summary of the invention

[0003] Based on this, it is necessary to provide a brush for an electronic device and an electronic device to address the above technical issues.

[0004] A brush for an electronic device, comprising:

[0005] Base material;

[0006] bristles, the bristles being arranged opposite to the substrate; and

[0007] An elastic layer having a first side and a second side arranged opposite to each other in a direction from the substrate to the bristles, wherein the first side of the elastic layer is connected to the substrate, and the second side of the elastic layer is connected to the bristles to elastically support the bristles in a direction from the substrate to the bristles.

[0008] In one embodiment, the thickness L1 of the elastic layer in the direction from the substrate to the bristles is 0.1 mm to 5 mm.

[0009] In one embodiment, the first side of the elastic layer is integrally formed with the substrate.

[0010] In one embodiment, the brush further includes a consolidation coating formed on the second side of the elastic layer for bonding the bristles.

[0011] In one embodiment, the brush further includes a double-sided adhesive layer, and the double-sided adhesive layer is disposed on a side of the substrate facing away from the elastic layer.

[0012] In one embodiment, the thickness L2 of the double-sided adhesive layer in the direction from the substrate to the bristles is 0.025 mm to 0.5 mm.

[0013] In one embodiment, the thickness L3 of the substrate in the direction from the elastic layer to the bristles is 0.025 mm to 1 mm; and / or,

[0014] The thickness L4 of the bristles in the direction from the substrate to the elastic layer is 0.3 mm to 5 mm.

[0015] The brush is provided with an elastic layer between the substrate and the bristles, so that the brush and the rotating shaft are always kept in a state of light compression (relatively constant compression force). When the flexible screen of the electronic product is flattened, combined, or folded at different angles, the brush maintains a relatively stable amount of compression due to the presence of the elastic member, ensuring that a stable dustproof effect can be maintained in different folding states; in addition, for electronic products of different production batches or different specifications, there may be small differences in the size of the space used to install the brush. The brush can be elastically supported by the elastic layer and can be kept in close contact with the display screens of electronic products of different production batches or different specifications, so that the brush can be suitable for electronic products of different production batches or different specifications, so that the brush can be mass-produced.

[0016] An electronic device, comprising: a housing, a display screen and a brush as described in any one of the above items;

[0017] The brush is arranged between the display screen and the shell, so that the display screen is sealed and packaged on the shell.

[0018] In one embodiment, the housing includes a first supporting shell, a second supporting shell and a folding shaft;

[0019] The first supporting shell and the second supporting shell are respectively connected to opposite sides of the folding shaft, and the first supporting shell and the second supporting shell can rotate relative to the folding shaft to switch the display screen between a folded state and an unfolded state;

[0020] The display screen has a bending portion opposite to the folding shaft, and the brush is arranged between the folding shaft and the bending portion.

[0021] In one embodiment, the shell is surrounded by a frame, and the brush is disposed between the frame and the display screen.

[0022] The electronic device mentioned above, by providing an elastic layer between the base material and the bristles of the brush, always maintains a state of light compression (relatively constant compression force) between the brush and the rotating shaft. When the flexible screen of the electronic product is flattened, combined, or folded at different angles, due to the presence of the elastic member, the brush maintains a relatively stable amount of compression, ensuring that a stable dustproof effect can be maintained in different folding states; in addition, for electronic products of different production batches or different specifications, there may be small differences in the size of the space used to install the brush. The brush can be elastically supported by the elastic layer and can be kept in close contact with the display screens of electronic products of different production batches or different specifications, so that the brush can be suitable for electronic products of different production batches or different specifications, so that the brush can be mass-produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the structure of a brush for electronic products provided in one embodiment of the present application.

[0024] FIG. 2 is an exploded schematic diagram of the brush provided in FIG. 1 .

[0025] FIG. 3 is a schematic diagram of the operation of the brush provided in FIG. 1 when discharging a composite substrate.

[0026] FIG. 4 is a schematic diagram of the working state of the brush provided in FIG. 1 when the composite substrate is attached.

[0027] FIG. 5 is a schematic diagram of the operation of the brush provided in FIG. 1 when spraying adhesive.

[0028] FIG. 6 is a schematic diagram of the brush provided in FIG. 1 during punching.

[0029] FIG. 7 is a simplified structural diagram of a foldable electronic product provided in an embodiment of the present application when half-unfolded.

[0030] FIG8 is a schematic diagram of the structure of an electronic product provided in another embodiment of the present application.

[0031] The reference numerals in the accompanying drawings are described as follows:

[0032] 10. Electronic device; 100. Brush; 110. Base material; 120. Bristles; 130. Elastic layer; 131. First side; 132. Second side; 140. Solidified coating; 150. Double-sided adhesive layer; 200. Shell; 210. First supporting shell; 220. Second supporting shell; 230. Folding hinge; 240. Frame; 300. Display screen; A1. Composite base material; A2. Fixture; A3. Product. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0035] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0039] With the development of flexible screen technology, foldable screen mobile phones have been commercialized. When the foldable screen mobile phone is unfolded, the screen is huge, which improves the user's visual experience. When folded, it is comparable to the size of an ordinary mobile phone and is easy to carry. The flexible screen in the foldable screen mobile phone is easily damaged, especially the folding position is prone to aging and damage. In the prior art, a brush is generally attached to the folding shaft of the foldable screen mobile phone, which can reduce the wear of the folding position of the flexible screen and can also play a role in dust prevention and sealing. However. When the mobile phone is combined, unfolded, and at different angles in the middle, the space between the shell and the shaft is different, that is, the compression amount or space of the brush is different. In addition, when the compression amount between the brush and the shaft is relatively large (that is, the space is small), the risk of the brush falling off during rotation increases and the reliability is reduced; when the space between the brush and the shaft appearance is relatively large, the risk of dust particles and foreign matter entering the shaft increases and the dustproof effect is reduced. It is difficult to ensure that the space or compression amount between the brush and the shaft is close in different folding states of the whole machine, which affects the dustproof effect.

[0040] In this regard, as shown in Figures 1 and 2, an embodiment of the present application provides a brush 100, which may include a substrate 110, bristles 120 and an elastic layer 130. The bristles 120 are arranged opposite to the substrate 110, and the elastic layer 130 has a first side 131 and a second side 132 which are arranged opposite to each other in the direction from the substrate 110 to the bristles 120. The first side 131 of the elastic layer 130 is connected to the substrate 110, and the second side 132 of the elastic layer 130 is connected to the bristles 120 to elastically support the bristles 120 in the direction from the substrate 110 to the bristles 120.

[0041] The brush 100 is used for dust prevention of an electronic device 10. The electronic device 10 may be a foldable electronic device 10, such as a mobile phone, a tablet computer, a laptop computer, a wearable device, or a non-foldable electronic device 10, such as a television, or a non-foldable electronic device 10.

[0042] The dustproof brush 100, by setting an elastic layer 130 between the substrate 110 and the bristles 120, always maintains a light compression (relatively constant compression force) state between the brush 100 and the rotating shaft 230. When the flexible screen of the foldable electronic product is flattened, combined, or folded at different angles, due to the presence of the elastic member, the brush 100 maintains a relatively stable compression amount, ensuring that a stable dustproof effect can be maintained in different folding states; in addition, for foldable electronic products and non-foldable electronic products of different production batches or different specifications, there may be small differences in the size of the space used to install the brush 100. The brush 100 can be elastically supported by the elastic layer 130 and can be tightly fitted with the display screens of electronic products of different production batches or different specifications, so that the brush 100 can be suitable for electronic products of different production batches or different specifications A3, so that the brush 100 can be mass-produced.

[0043] In some embodiments, the elastic layer 130 can be made of elastic materials such as polyurethane, polyether, etc. Such elastic materials have good resilience and can meet the requirements of the use of the brush 100 in the electronic device 10.

[0044] In some embodiments, as shown in FIG2 , the thickness L1 of the elastic layer 130 in the direction from the substrate 110 to the bristles 120 is 0.1 mm to 5 mm, for example, 0.1 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc. If the thickness L1 is less than 0.1 mm, the difficulty of preparing the elastic layer 130 will be increased; if the thickness is greater than 5 mm, the overall thickness of the brush 100 will be too large and cannot be used in the narrow space of the electronic product, especially when installed on the folding shaft of a foldable electronic product, the friction force formed by the brush 100 on the flexible screen will be increased, causing damage to the flexible screen.

[0045] In some embodiments, the first side 131 of the elastic layer 130 is integrally formed with the substrate 110. This ensures the connection strength between the elastic layer 130 and the substrate 110, prevents the elastic layer 130 from falling off the substrate 110, and ensures the normal use of the brush 100 on the electronic product A3.

[0046] In some embodiments, as shown in FIG. 1 and FIG. 2 , the brush 100 further includes a consolidation coating 140, which is formed on the second side 132 of the elastic layer 130 and is used to bond the bristles 120. The consolidation coating 140 may be formed by, but is not limited to, spraying, scraping, roller coating, etc. It should be noted that the main body of the consolidation coating is an adhesive. The type of adhesive can be set accordingly according to demand, as long as the connection strength between the bristles 120 and the elastic layer 130 can be guaranteed.

[0047] In some embodiments, as shown in Figures 1 and 2, the brush 100 further includes a double-sided adhesive layer 150, which is disposed on the side of the substrate 110 facing away from the elastic layer 130. The double-sided adhesive layer 150 can adhere the brush 100 to the housing 200 of the electronic product A3.

[0048] Optionally, as shown in FIG2 , the thickness L2 of the double-sided adhesive layer 150 in the direction from the substrate 110 to the bristles 120 is 0.025 mm to 0.5 mm, for example, it can be set to 0.025 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, etc. By setting the thickness L2 of the double-sided adhesive layer 150 in the direction from the substrate 110 to the bristles 120 in this way, not only can the installation of the brush 100 on the electronic product be guaranteed, but also the overall thickness of the brush 100 is not very large, and it can adapt to the narrow space of the electronic product. When installed on the folding shaft of the folding screen electronic product, it can avoid the friction force formed by the brush 100 on the flexible screen to be large and cause damage to the flexible screen.

[0049] In some embodiments, as shown in FIG. 2 , the thickness L3 of the substrate 110 in the direction from the elastic layer 130 to the bristles 120 is 0.025 mm to 1 mm, such as 0.025 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, etc. By setting the thickness L3 of the substrate 110 in the direction from the elastic layer 130 to the bristles 120 in this way, not only is the production of the substrate 110 convenient, but also the overall thickness of the brush 100 is not very large, and can adapt to the narrow space of the electronic product. When installed on the folding shaft of the foldable electronic product, it can avoid the friction force formed by the brush 100 on the flexible screen to be large and cause damage to the flexible screen.

[0050] The substrate 110 may be fabric.

[0051] In some embodiments, the thickness L4 of the bristles 120 in the direction from the substrate 110 to the elastic layer 130 is 0.3 mm to 5 mm, for example, 0.3 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc. By setting the thickness L4 of the bristles 120 in the direction from the substrate 110 to the elastic layer 130 in this way, the dustproof effect of the brush 100 on the electronic product can be ensured, and the overall thickness of the brush 100 can be not very large, which can adapt to the narrow space of the electronic product A3. When installed on the folding shaft of a foldable electronic product, it can avoid the friction force of the brush 100 on the flexible screen being large and causing damage to the flexible screen.

[0052] In some embodiments, the bristles 120 may be made of chemical fiber materials such as nylon and polyester, which have the characteristics of good wear resistance and good elasticity. In one example, the bristles 120 may contain a conductive agent to improve the cleaning and dust prevention effects. Among them, the conductive agent can be but is not limited to conductive carbon black, graphene, etc. The material used for the bristle bundle 120 is preferably antistatic fiber, so that the brush 120 can obtain the function of eliminating static electricity. For example, the fiber material can be pre-treated with antistatic. Antistatic treatment can be, for example, but is not limited to coating an antistatic agent on the surface of the chemical fiber material.

[0053] The preparation process of the brush 100 described above is described below:

[0054] (1) Preparation of composite substrate A1: The elastic layer 130 is integrally formed on the substrate 110 to form the composite substrate A1. It is understood that the composite substrate A1 is composed of at least the substrate 110 and the elastic layer 130.

[0055] (2) Cutting the composite substrate A1: As shown in FIG. 3 , the composite substrate A1 is cut into block-shaped composite substrates A1.

[0056] (3) Attaching the composite substrate A1: As shown in FIG. 4 , the block-shaped composite substrate A1 is attached to the jig A2 .

[0057] (4) Spraying adhesive: As shown in FIG5 , spray the adhesive on the block-shaped composite substrate A1. The adhesive can ensure the firmness of the bristles 120. It should be noted that the arrow in FIG5 indicates the direction of the glue gun.

[0058] (5) Flocking: Flocking is performed on the composite substrate A1 sprayed with adhesive.

[0059] (6) Drying: The semi-finished product with the bristles 120 planted is baked to dry out moisture.

[0060] (7) Cleaning loose hair: Clean the fluff on the surface of the semi-finished product.

[0061] (8) Attaching double-sided tape: Attach the double-sided tape to the composite substrate A1 of the semi-finished flocking product.

[0062] (9) Punching: As shown in FIG. 6 , the product A3 with the double-sided tape affixed is punched into finished products.

[0063] (10) Cleaning: Clean the remaining fluff on the surface of product A3.

[0064] (11) Inspection: Check the size, appearance, function, etc. of the cleaned product A3 according to the drawing requirements.

[0065] (12) Packing and storage: Pack the inspected product A3 with packaging materials and store it in the warehouse

[0066] (13) Shipping: Product A3 is shipped after being put into storage.

[0067] On the other hand, an embodiment of the present application further provides an electronic product 10, which includes a shell 200, a display screen 300 and a brush 100 as described in any one of the above items; the brush 100 is arranged between the display screen 300 and the shell 200 so that the display screen 300 is sealed and packaged on the shell 200.

[0068] Among them, the electronic device 10 can be a foldable electronic device, such as a mobile phone, a tablet computer, a laptop computer, a wearable device, etc., which has a folding function. Of course, it can also be a non-foldable electronic device 10, such as a television, etc., which does not have a folding function.

[0069] The electronic device 10, by setting an elastic layer 130 between the substrate 110 and the bristles 120 of the dustproof brush 100, always maintains a light compression (relatively constant compression force) state between the brush 100 and the rotating shaft 230. When the flexible screen of the electronic product 10 is flattened, combined, or folded at different angles, due to the presence of the elastic member, the brush 100 maintains a relatively stable compression amount, ensuring that a stable dustproof effect can be maintained in different folding states; in addition, for electronic products 10 of different production batches or different specifications, there may be a small difference in the size of the space for installing the brush 100. The brush 100 can be elastically supported by the elastic layer 130 and can be kept in close contact with the display screen 300 of electronic products 10 of different production batches or different specifications, so that the brush 100 can be suitable for electronic products 10 of different production batches or different specifications, so that the brush 100 can be mass-produced.

[0070] In some embodiments, as shown in FIG. 7 , the housing 200 includes a first support shell 210, a second support shell 220, and a folding shaft 230; the first support shell 210 and the second support shell 220 are respectively connected to opposite sides of the folding shaft 230, and the first support shell 210 and the second support shell 220 can rotate relative to the folding shaft 230 to switch the display screen 300 between the folded state and the unfolded state; the display screen 300 has a bending portion opposite to the folding shaft 230, and the brush 100 is disposed between the folding shaft 230 and the bending portion. When applicable to a foldable electronic device, the brush 100 is disposed between the folding shaft 230 and the bending portion of the display screen 300, which can not only support the bending portion of the display screen 300, but also play a role in dust prevention.

[0071] It should be noted that the brush 100 may also be disposed between the first supporting shell 210 and the display screen 300 , and between the second supporting shell 220 and the display screen 300 , for dust prevention.

[0072] In other embodiments, as shown in FIG8 , a frame 240 is provided around the housing 200, and the brush 100 is disposed between the frame 240 and the display screen 300. When applied to non-folding electronic products, the brush 100 can be disposed between the frame 240 around the housing 200 and the display screen 300, thereby playing a role of sealing and dustproofing.

[0073] As an example, the frame 240 is provided with a step surface, and the brush 100 is disposed on the step surface to support the display screen 300 on the step surface. The double-sided adhesive layer 150 of the brush 100 is bonded to the step surface of the frame frame 240 .

[0074] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A brush for an electronic device, characterized in that: include: substrate (110); Bristles (120), the bristles (120) being arranged opposite to the substrate (110); as well as An elastic layer (130), the elastic layer (130) having a first side (131) and a second side (132) arranged opposite to each other in a direction from the substrate (110) to the bristles (120), the first side (131) of the elastic layer (130) being connected to the substrate (110), and the second side (132) of the elastic layer (130) being connected to the bristles (120), so as to elastically support the bristles (120) in a direction from the substrate (110) to the bristles (120).

2. The brush according to claim 1, characterized in that: The thickness L1 of the elastic layer (130) in the direction from the substrate (110) to the bristles (120) is 0.1 mm to 5 mm.

3. The brush according to claim 1, characterized in that: The first side (131) of the elastic layer (130) is integrally formed with the substrate (110).

4. The brush according to claim 1, characterized in that: The brush (100) further comprises a consolidation coating (140), wherein the consolidation coating (140) is formed on the second side (132) of the elastic layer (130) and is used for bonding the bristles (120).

5. The brush according to any one of claims 1 to 4, characterized in that: The brush (100) further comprises a double-sided adhesive layer (150), wherein the double-sided adhesive layer (150) is arranged on a side of the substrate (110) that is opposite to the elastic layer (130).

6. The brush according to claim 5, characterized in that: The thickness L2 of the double-sided adhesive layer (150) in the direction from the substrate (110) to the bristles (120) is 0.025 mm to 0.5 mm.

7. The brush according to any one of claims 1 to 4, characterized in that: The thickness L3 of the substrate (110) in the direction from the elastic layer (130) to the bristles (120) is 0.025 mm to 1 mm; and / or, The thickness L4 of the bristles (120) in the direction from the substrate (110) to the elastic layer (130) is 0.3 mm to 5 mm.

8. An electronic device, characterized in that: include: A housing (200), a display screen (300), and a brush (100) as claimed in any one of claims 1 to 7; The brush (100) is arranged between the display screen (300) and the housing (200), so that the display screen (300) is sealed and packaged on the housing (200).

9. The electronic device according to claim 8, characterized in that: The housing (200) comprises a first supporting shell (210), a second supporting shell (220) and a folding shaft (230); The first supporting shell (210) and the second supporting shell (220) are respectively connected to opposite sides of the folding shaft (230), and the first supporting shell (210) and the second supporting shell (220) are capable of rotating relative to the folding shaft (230) so that the display screen (300) can be switched between a folded state and an unfolded state; The display screen (300) has a bending portion opposite to the folding rotating shaft (230), and the brush (100) is arranged between the folding rotating shaft (230) and the bending portion.

10. The electronic device according to claim 8, characterized in that: The shell (200) is provided with a frame (240) around its periphery, and the brush (100) is arranged between the frame (240) and the display screen (300).

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