Electronic apparatus

Abstract

To provide an electronic apparatus that allows easy provision of a coated part and a non-coated part on an exterior cover member.SOLUTION: An electronic apparatus has a body part, and an exterior cover that covers at least part of an outer periphery of the body part. The exterior cover includes a coated part coated with first coating material, and a non-coated part not coated with the first coating material. At least part of the non-coated part is formed with a configuration including a plurality of first shapes having water repellency against the first coating material.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an electronic device having an exterior cover including a coated portion and an uncoated portion. [Background technology]

[0002] The exterior cover of an electronic device, including an imaging device such as a mirrorless single-lens camera, has a painted portion that is painted for the purpose of expressing a design, and a non-painted portion that is not painted to improve electrical conductivity and sliding properties. Patent Document 1 discloses a method of painting only the painted portion by contacting a masking member with the non-painted portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-153804 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the method of Patent Document 1, a masking material is used for painting, which requires the development of the masking material, painting work using the masking material, and cleaning work of the masking material, etc., and therefore the production of the exterior cover material takes a long time.

[0005] An object of the present invention is to provide an electronic device in which a coated portion and a non-coated portion can be easily provided on an exterior cover member. [Means for solving the problem]

[0006] An electronic device as one aspect of the present invention has a main body and an exterior cover covering at least a portion of the outer periphery of the main body, the exterior cover having a painted portion that is painted with a first paint and an unpainted portion that is not painted with the first paint, and at least a portion of the unpainted portion is formed with a structure that includes a plurality of first shapes that are water-repellent to the first paint. Effect of the Invention

[0007] According to the present invention, it is possible to provide an electronic device in which a coated portion and a non-coated portion can be easily provided on an exterior cover member. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of an imaging device that is an example of an electronic device according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 1 is an enlarged image of a convex shape formed by microfabrication. [Figure 4] FIG. 2 is an enlarged cross-sectional view of a coated portion and a non-coated portion of the first embodiment. [Diagram 5] FIG. 11 is an enlarged cross-sectional view of a coated portion and a non-coated portion of a second embodiment. [Figure 6] FIG. 11 is an enlarged cross-sectional view of a coated portion and a non-coated portion of a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to refer to the same components, and duplicated descriptions will be omitted.

[0010] 1 is a perspective view of an imaging device, which is an example of an electronic device according to an embodiment of the present invention. The imaging device 100 has a main body and an exterior cover that covers at least a part of the outer periphery of the main body. The exterior cover includes a front cover 101, a top cover 102, and a back cover 103, each of which is made of resin or the like. Note that, in this embodiment, the imaging device 100 will be described as an example of an electronic device, but the present invention is not limited thereto.

[0011] FIG. 2 is a perspective view of the top cover 102. The top cover 102 includes a painted portion 104 and a non-painted portion 105. The painted portion 104 is an area that is painted by spraying an appearance paint (first paint) 200 for the purpose of expressing design aesthetics. The appearance paint 200 is, for example, a water-based paint. The non-painted portion 105 is an area that is not painted by spraying the appearance paint 200 in order to improve electrical conductivity and sliding properties. Note that, in this embodiment, a case where the painted portion 104 and the non-painted portion 105 are provided on the top cover 102 will be described, but they may be provided on other covers that constitute the exterior cover.

[0012] Conventionally, in order to provide a painted portion 104 and a non-painted portion 105 on an exterior cover, a method is known in which a masking member (not shown) is brought into contact with the non-painted portion 105 when spraying an appearance paint 200. With this method, the masking member (not shown) prevents the appearance paint 200 from being sprayed onto the non-painted portion 105, and it becomes possible to paint only the painted portion 104. However, when a painting operation is performed using a masking member, it is necessary to develop and design the masking member, perform painting using the masking member, and wash the masking member, which takes time to manufacture the exterior cover member.

[0013] Therefore, in this embodiment, a first configuration is formed in the non-coated portion 105, which includes a plurality of finely processed shapes (first shapes) that are water repellent with respect to the exterior paint 200. This makes it possible to provide the coated portion 104 and the non-coated portion 105 on the top cover 102 without using a masking member. In this embodiment, the top cover 102 is a molded product made using a metal mold, and the finely processed shapes are transfers of shapes formed on the metal mold by irradiating it with a femtosecond laser. The finely processed shapes refer to shapes having a width of 100 μm.

[0014] FIG. 3 is an enlarged image diagram of the non-coated portion 105 molded using a mold having a shape applied to its surface by irradiation with a femtosecond laser, and having a convex shape 300, which is an example of a micro-machined shape, transferred thereto. The contact angle of the droplet of the appearance paint 200 in the region where the convex shape 300 is applied is larger than that in the region where the convex shape 300 is not applied, so that the region where the convex shape 300 is applied has a water-repellent effect. For example, the contact angle of the droplet of the appearance paint 200 in the region where the convex shape 300 is applied may be 120 degrees or more. In this embodiment, the convex shapes 300 are periodically provided with a pitch of 40 μm, but the present invention is not limited thereto. As long as the appearance paint 200 is provided with water repellency, the convex shapes 300 may have other shapes or may be provided with different periods. In addition, the pitch of 40 μm includes not only the case where the pitch is strictly 40 μm, but also the case where the pitch is substantially 40 μm (approximately 40 μm). [First embodiment] FIG. 4 is an enlarged cross-sectional view of the coated portion 104 and the non-coated portion 105 of this embodiment. FIG. 4(a) is a schematic enlarged view of the cross section seen from the direction of the arrow A in FIG. 2. As shown in FIG. 4(a), the non-coated portion 105 is provided with a convex shape 300. FIG. 4(b) is a view showing a state in which the appearance paint 200 is sprayed onto the coated portion 104 and the non-coated portion 105 in the state of FIG. 4(a). As shown in FIG. 4(b), the appearance paint 200 is applied substantially uniformly onto the coated portion 104, and a coating film 200a is formed. Since the non-coated portion 105 is provided with a convex shape 300 having water repellency against the appearance paint 200, the appearance paint 200 sprayed onto the non-coated portion 105 becomes substantially spherical particles 200b. As a result, the coating film 200a cannot be formed on the non-coated portion 105.

[0015] As described above, in this embodiment, the non-painted portion 105 is provided with the convex shape 300 that is water repellent with respect to the exterior paint 200. This makes it possible to easily provide the painted portion 104 and the non-painted portion 105 on the upper cover 102 without using a masking member.

[0016] 4(a), the convex shape 300 is formed on the entire area of ​​the non-painted portion 105, but the present invention is not limited to this. For example, the convex shape 300 may be formed on only a part of the area of ​​the non-painted portion 105, and a masking member may be used on the area where the convex shape 300 is not formed.

[0017] 4(a), the portion to be coated 104 and the portion to be uncoated 105 are provided on different surfaces, but the present invention is not limited to this. The portion to be coated 104 and the portion to be uncoated 105 may be provided on the same surface.

[0018] 4(b) shows a state in which the particles 200b (appearance paint 200) are retained in the non-coated portion 105, but the present invention is not limited to this. For example, the appearance paint 200 that is water-repellent due to the convex shape 300 may be blown away by the spray pressure during application, and the appearance paint 200 may not be retained in the non-coated portion 105. [Second embodiment] In the first embodiment, a first configuration including a plurality of finely processed shapes that are hydrophilic to the appearance paint 200 is formed in the non-coated portion 105. In the present embodiment, in addition to the configuration of the first embodiment, a second configuration including a plurality of finely processed shapes (second shapes) that are hydrophilic to the appearance paint 200 is formed in the coated portion 104.

[0019] FIG. 5 is an enlarged cross-sectional view of the coated portion 104 and the non-coated portion 105 of this embodiment. FIG. 5(a) is a schematic enlarged view of the cross section seen from the direction of the arrow A in FIG. 2. As shown in FIG. 5(a), the non-coated portion 105 is provided with a first convex shape 300 having water repellency with respect to the appearance paint 200. For example, the contact angle of the droplet of the appearance paint 200 in the area where the convex shape 300 is provided may be 120 degrees or more. In addition, a part of the coated portion 104 is provided with a second convex shape 302, which is an example of a second shape, and has a larger contact area with the appearance paint 200 due to its larger size, compared to the first convex shape 301. The contact angle of the appearance paint 200 in the area where the second convex shape 302 is provided is smaller than that in the area where the fine processing shape is not provided or the area where the first convex shape 301 is provided. Therefore, the area where the second convex shape 302 is provided is hydrophilic with respect to the appearance paint 200. For example, the contact angle of a droplet of the appearance paint 200 in the area where the second convex shape 302 is applied may be less than 60 degrees. In this embodiment, the first convex shape 300 is provided on the non-painted portion 105, but other finely processed shapes may be provided as long as water repellency can be imparted to the appearance paint 200. In this embodiment, the second convex shape is provided on the painted portion 104, but other finely processed shapes may be provided as long as hydrophilicity is not required for the appearance paint 200.

[0020] FIG. 5(b) is a diagram showing a state in which the appearance paint 200 is sprayed onto the painted part 104 and the non-painted part 105 in the state of FIG. 5(a). As shown in FIG. 5(b), the appearance paint 200 is applied almost uniformly to the painted part 104, and a coating film 200a is formed. In the area of ​​the painted part 104 where the second convex shape 302 having hydrophilicity to the appearance paint 200 is applied, the appearance paint 200 is applied thinly and uniformly compared to the area where the second convex shape 302 is not applied. In other words, by applying the second convex shape 302 having hydrophilicity to the appearance paint 200, the adhesion and durability of the coating film 200a can be improved. Since the non-painted part 105 is applied with the first convex shape 301 having water repellency to the appearance paint 200, the appearance paint 200 sprayed onto the non-painted part 105 becomes approximately spherical grains 200b. As a result, the coating film 200a cannot be formed on the non-painted part 105.

[0021] As described above, in this embodiment, the non-painted portion 105 is provided with a first convex shape 301 that is water repellent with respect to the appearance paint 200, and the painted portion 104 is provided with a convex shape 302 that is hydrophilic with respect to the appearance paint 200. This makes it possible to easily provide the painted portion 104 and the non-painted portion 105 on the upper cover 102 without using a masking member.

[0022] 5(a), the convex shape 302 is provided on a partial area of ​​the coating target 104, but the present invention is not limited to this. For example, the convex shape 302 may be provided on the entire area of ​​the coating target 104.

[0023] 5(a), the first convex shape 301 is formed over the entire area of ​​the non-painted portion 105, but the present invention is not limited to this. For example, the first convex shape 301 may be formed over only a part of the area of ​​the non-painted portion 105, and a masking member may be used for the area where the first convex shape 301 is not formed.

[0024] 5(a), the portion to be painted 104 and the portion to be unpainted 105 are provided on different surfaces, but the present invention is not limited to this. The portion to be painted 104 and the portion to be unpainted 105 may be provided on the same surface.

[0025] 5(b) shows a state in which the particles 200b (appearance paint 200) are retained in the non-coated portion 105, but the present invention is not limited to this. For example, the appearance paint 200 that is water-repellent due to the first convex shape 301 may be blown away by the spray pressure during application, and the appearance paint 200 may not be retained in the non-coated portion 105. [Third embodiment] Fig. 6 is an enlarged cross-sectional view of the coated portion 104 and the non-coated portion 105 of this embodiment. Fig. 6(a) is a schematic enlarged view of the cross-section as seen from the direction of arrow A in Fig. 2. As shown in Fig. 6(a), the non-coated portion 105 is provided with a first convex shape 301 that is water-repellent with respect to the appearance paint 200. For example, the contact angle of a droplet of the appearance paint 200 in the area provided with the convex shape 300 may be 120 degrees or more.

[0026] FIG. 6(b) is a diagram showing a state in which the undercoat paint 201 is sprayed onto the part to be painted 104 and the part not to be painted 105 in the state of FIG. 6(a). As shown in FIG. 6(b), the undercoat paint 201 is applied almost uniformly onto the part to be painted 104, and a coating film 201a is formed. The undercoat paint 201 is hydrophilic to the exterior paint 200, and is applied for the purpose of improving the adhesion and durability of the exterior paint 200. For example, the contact angle of the droplets of the exterior paint 200 in the area where the undercoat paint is applied may be less than 60 degrees. Since the first convex shape 301 that is water-repellent to the undercoat paint 201 is applied to the non-painted part 105, the undercoat paint 201 sprayed onto the non-painted part 105 becomes approximately spherical particles 201b. As a result, the coating film 201a cannot be formed on the non-painted part 105. For example, the contact angle of a droplet of the white paint 201 on the area where the first convex shape 301 is formed may be 120 degrees or more.

[0027] 6(b) shows a state in which particles 201b (undercoat paint 201) remain in the non-painted portion 105, but the present invention is not limited to this. For example, the undercoat paint 201 that has been made water-repellent by the first convex shape 301 may be blown away by the spray pressure during application, and the undercoat paint 201 may not remain in the non-painted portion 105. As described below, when spraying the exterior paint 200, it is desirable that the undercoat paint 201 does not remain in the non-painted portion 105. For this reason, the particles 201b may be removed from the non-painted portion 105 by air blowing means (not shown) or the like.

[0028] FIG. 6(c) is a diagram showing a state in which the appearance paint 200 is sprayed onto the painted portion 104 and the non-painted portion 105 in the state of FIG. 6(b). As shown in FIG. 6(c), the appearance paint 200 is applied substantially uniformly onto the coating film 201a on the painted portion 104, forming a coating film 200a. The coating film 201a can improve the adhesion and durability of the appearance paint 200. Since the non-painted portion 105 is provided with a first convex shape 301 that is water-repellent to the appearance paint 200, the appearance paint 200 sprayed onto the non-painted portion 105 becomes substantially spherical particles 200b. As a result, the coating film 200a cannot be formed on the non-painted portion 105.

[0029] As described above, in this embodiment, the non-painted portion 105 is provided with the first convex shape 301 that is water-repellent to the exterior paint 200 and the undercoat paint 201. This makes it possible to easily provide the painted portion 104 and the non-painted portion 105 on the upper cover 102 without using a masking member, even when the undercoat paint 201 is applied for the purpose of improving adhesion and durability.

[0030] 6(a), the first convex shape 301 is formed over the entire area of ​​the non-painted portion 105, but the present invention is not limited to this. For example, the first convex shape 301 may be formed over only a part of the area of ​​the non-painted portion 105, and a masking member may be used for the area where the first convex shape 301 is not formed.

[0031] 6(a), the portion to be coated 104 and the portion to be uncoated 105 are provided on different surfaces, but the present invention is not limited to this. The portion to be coated 104 and the portion to be uncoated 105 may be provided on the same surface.

[0032] 6(b) shows a state in which the particles 200b (appearance paint 200) are retained in the non-coated portion 105, but the present invention is not limited to this. For example, the appearance paint 200 that is water-repellent due to the first convex shape 301 may be blown away by the spray pressure during application, and the appearance paint 200 may not be retained in the non-coated portion 105.

[0033] The disclosure of this embodiment includes the following configuration. (Configuration 1) A main body portion, an exterior cover that covers at least a portion of the outer periphery of the main body, The exterior cover includes a painted portion that is painted with a first paint and a non-painted portion that is not painted with the first paint, An electronic device, characterized in that a first structure including a plurality of first shapes that are water-repellent to the first paint is formed in at least a portion of the unpainted portion. (Configuration 2) The electronic device described in configuration 1, characterized in that the contact angle of the first paint droplet in the area where the first structure is formed is larger than the contact angle of the first paint droplet in the area where the first structure is not formed. (Configuration 3) The exterior cover is a molded product, 3. The electronic device according to configuration 1 or 2, wherein the first shape is a transfer of a shape applied to the mold. (Configuration 4) 4. The electronic device according to any one of configurations 1 to 3, wherein the first shape is a convex shape. (Configuration 5) 5. The electronic device according to any one of configurations 1 to 4, wherein the first shape is provided periodically with a pitch of 40 μm. (Configuration 6) An electronic device described in any one of configurations 1 to 5, characterized in that a second configuration including a plurality of second shapes that are hydrophilic with respect to the first paint is formed in at least a portion of the painted portion. (Configuration 7) The electronic device described in configuration 6, characterized in that the contact angle of the first paint droplet in the area where the second configuration is formed is smaller than the contact angle of the first paint droplet in the area where the second configuration is not formed. (Configuration 8) The exterior cover is a molded product, 8. The electronic device according to configuration 6 or 7, wherein the second shape is a transfer of a shape formed on a mold. (Configuration 9) 9. The electronic device according to any one of configurations 6 to 8, wherein the second shape is larger in size than the first shape. (Configuration 10) 10. The electronic device according to any one of configurations 6 to 9, wherein the second shape is a convex shape. (Configuration 11) At least a part of the part to be coated is coated with a second paint and then coated with the first paint, The first configuration has water repellency with respect to the first paint and the second paint, 6. The electronic device according to any one of configurations 1 to 5, wherein the second paint is hydrophilic with respect to the first paint. (Configuration 12) a contact angle of the second paint droplet in a region where the first configuration is formed is larger than a contact angle of the second paint droplet in a region where the first configuration is not formed; The electronic device described in configuration 11, characterized in that the contact angle of the first paint droplet in the area where the second paint is applied is greater than the contact angle of the first paint droplet in the area where the second paint is not applied. (Configuration 13) 13. The electronic device according to any one of configurations 1 to 12, wherein the first paint is a water-based paint.

[0034] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention. [Explanation of symbols]

[0035] 100 Electronic equipment 102 Exterior cover 104 Part to be painted 105 Unpainted part 200 Exterior paint (first paint) 300, 301 Convex shape (first shape)

Claims

1. A main body portion, an exterior cover that covers at least a portion of the outer periphery of the main body, The exterior cover includes a painted portion that is painted with a first paint and a non-painted portion that is not painted with the first paint, An electronic device, characterized in that a first structure including a plurality of first shapes that are water repellent with respect to the first paint is formed in at least a portion of the unpainted portion.

2. 2. The electronic device according to claim 1, wherein a contact angle of the first paint droplet in an area where the first structure is formed is larger than a contact angle of the first paint droplet in an area where the first structure is not formed.

3. The exterior cover is a molded product, 3. The electronic device according to claim 1, wherein the first shape is a transfer of a shape formed on the mold.

4. 3. The electronic device according to claim 1, wherein the first shape is a convex shape.

5. 3. The electronic device according to claim 1, wherein the first shape is provided periodically at a pitch of 40 [mu]m.

6. 3. The electronic device according to claim 1, wherein a second structure including a plurality of second shapes having hydrophilicity with respect to the first paint is formed on at least a portion of the portion to be coated.

7. 7. The electronic device according to claim 6, wherein a contact angle of the first paint droplet in an area where the second structure is formed is smaller than a contact angle of the first paint droplet in an area where the second structure is not formed.

8. The exterior cover is a molded product, 7. The electronic device according to claim 6, wherein the second shape is a transfer of a shape formed on a mold.

9. The electronic device according to claim 6 , wherein the second shape is larger in size than the first shape.

10. The electronic device according to claim 6 , wherein the second shape is a convex shape.

11. At least a part of the part to be coated is coated with a second paint and then coated with the first paint on the second paint, the first configuration is water-repellent to the first paint and the second paint; 3. The electronic device according to claim 1, wherein the second paint is hydrophilic with respect to the first paint.

12. a contact angle of the second paint droplet in a region where the first configuration is formed is larger than a contact angle of the second paint droplet in a region where the first configuration is not formed; 12. The electronic device according to claim 11, wherein a contact angle of a droplet of the first paint in an area where the second paint is applied is greater than a contact angle of a droplet of the first paint in an area where the second paint is not applied.

13. 3. The electronic device according to claim 1, wherein the first paint is a water-based paint.

Images