Electronic component

Abstract

The invention discloses an electronic component. The electronic assembly comprises a bottom plate, a circuit board, a cover plate and screws. The bottom plate is provided with screw holes. The circuit board is arranged on the bottom plate. The circuit board has a first through hole. The cover plate is arranged on the bottom plate. The cover plate has a first planar section contacting the circuit board, a second planar section spaced from the circuit board and defining a second through hole, and a first non-planar section. The first non-planar section is connected between the first planar section and the second planar section, and a first bending direction from the first planar section to the first non-planar section is opposite to a second bending direction from the first non-planar section to the second planar section. The screw penetrates through the first through hole and the second through hole and is locked into the screw hole. The screw head of the screw abuts against the second plane section. When the electronic assembly is applied to a vehicle-mounted system or other systems which easily generate vibration, the screws can be effectively prevented from loosening.

Description

TECHNICAL FIELD

[0001] The present invention relates to an electronic assembly, and in particular, to an electronic assembly having a cover plate with a screw loosening prevention structure. BACKGROUND

[0002] The circuit board of an electronic device can be conveniently assembled and disassembled by being fastened to a cover plate by screws, and can be protected by the cover plate to avoid being directly damaged by the outside. However, when the screws are fastened to the screw holes, the contact surfaces of the screws and the cover plate are flat and do not have a loosening prevention structure. Thus, when the electronic device vibrates, the screws are easily loosened from the screw holes, causing the cover plate to fall off, and the circuit board is easily damaged by the outside. SUMMARY

[0003] The purpose of the present invention is to provide an electronic assembly that is not easily loosened when the screws are fastened, so that the electronic assembly is not easily loosened when applied to a vehicle-mounted system or other systems that are prone to vibration.

[0004] To achieve the above-mentioned purpose, the present invention provides an electronic assembly, which includes a bottom plate, a circuit board, a cover plate, and a screw. The bottom plate has a screw hole. The circuit board is disposed on the bottom plate. The circuit board has a first through hole. The first through hole overlaps the screw hole in the top view direction of the electronic assembly. The cover plate is disposed on the bottom plate. The cover plate has a first flat section, a second flat section, and a first non-flat section, wherein the first flat section contacts the circuit board, the second flat section is spaced apart from the circuit board and defines a second through hole, the first non-flat section is connected between the first flat section and the second flat section, and the first bending direction from the first flat section to the first non-flat section is opposite to the second bending direction from the first non-flat section to the second flat section. The screw is fastened into the screw hole through the first through hole and the second through hole, wherein the head of the screw abuts the second flat section.

[0005] According to an embodiment of the present invention, the first bending angle from the first flat section to the first non-flat section is less than or equal to the second bending angle from the first non-flat section to the second flat section.

[0006] According to an embodiment of the present invention, the head covers the second through hole in the top view direction.

[0007] According to an embodiment of the present invention, the second through hole is a circular through hole, the head is a circular head, and the second flat section is an annular flat section.

[0008] According to an embodiment of the present invention, the cover plate covers the circuit board in the top view direction.

[0009] According to one embodiment of the present invention, the cover further comprises a third planar section and a second non-planar section. The first planar section is connected between the first and second non-planar sections. The third planar section is spaced apart from the circuit board. The second non-planar section is connected between the first and third planar sections, and a third bending direction from the first planar section to the second non-planar section is opposite to a fourth bending direction from the second non-planar section to the third planar section.

[0010] According to one embodiment of the present invention, a first height from the second planar section to the circuit board is smaller than a second height from the third planar section to the circuit board.

[0011] According to an embodiment of the present invention, the first planar section and the third planar section are substantially parallel.

[0012] According to an embodiment of the present invention, the second planar section is a plurality of strip-shaped planar sections.

[0013] According to an embodiment of the present invention, each strip-shaped planar section has a groove that is concave toward the circuit board.

[0014] The advantage of the present invention is at least that the cover plate forms an anti-locking and loosening structure through the first non-planar section and the second planar section, so that when the screw abuts the second planar section, it generates a reaction force toward the second planar section and is not easy to loosen from the locked screw hole, so that the electronic component can achieve the effect of preventing locking and loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For a more complete understanding of the embodiments and their advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 is a partial cross-sectional schematic diagram of an electronic component according to some embodiments of the present invention;

[0017] Figure 2 for Figure 1 A partial three-dimensional view of the cover;

[0018] Figure 3 for Figure 1 A partial top view of the cover plate;

[0019] Figure 4 Schematic diagrams of partial cross-sections of electronic components according to other embodiments of the present invention;

[0020] Figure 5 for Figure 4 A partial three-dimensional view of the cover;

[0021] Figure 6 for Figure 4 Partial top view of the cover. DETAILED DESCRIPTION

[0022] The following detailed description discusses embodiments of the present invention. However, it should be understood that the embodiments provide many applicable concepts that can be implemented in a wide variety of specific contexts. The embodiments discussed and disclosed are for illustration only and are not intended to limit the scope of the present invention.

[0023] The terms used in this document are for the purpose of describing particular embodiments only and are not intended to limit the claims. Unless otherwise limited, the singular forms "a," "an," or "the" may also be used to refer to the plural forms.

[0024] It should be understood that, although terms such as “first”, “second”, etc. may be used herein to describe various features, these terms should not limit these features. These terms are only used to distinguish one feature from another.

[0025] The use of spatially relative terms is intended to describe different orientations of an element during use or operation and is not limited to the orientations depicted in the drawings. The element may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative terms used herein should be interpreted in the same manner.

[0026] For simplicity and clarity of description, reference numerals and / or letters may be repeated in various embodiments herein, but this does not imply a causal relationship between the various embodiments and / or configurations discussed.

[0027] In addition, to simplify the drawings, some conventional structures and elements in the art will be depicted in a simple schematic manner in the drawings, or will not appear in the drawings, and the actual sizes and proportions of the elements in this article are not limited to those depicted in the drawings.

[0028] Figure 1 FIG is a partial cross-sectional view of an electronic component 100 according to some embodiments of the present invention. Figure 1 As shown, electronic assembly 100 includes a base plate 110, a circuit board 120, a cover plate 130, and screws 140. Circuit board 120 is secured between base plate 110 and cover plate 130 by screws 140. Circuit board 120 is protected by base plate 110 from direct damage from external influences (e.g., friction, impact, etc.). Circuit board 120 can also be removed from base plate 110 and cover plate 130 by loosening screws 140.

[0029] Figure 2 and Figure 3 They are Figure 1 A partial perspective view and a partial top view of the cover plate 130, wherein Figure 1 The cross-sectional view of the cover plate 130 in the electronic component 100 is along Figure 3 Sectional view of section line I-I'. Figures 1 to 3As shown, the bottom plate 110 has a screw hole 111. The circuit board 120 is disposed on the bottom plate 110 and has a first through hole 121. The cover plate 130 is disposed on the bottom plate 110 and covers the circuit board 120 in the top view direction of the electronic assembly 100 (i.e. the opposite direction of direction Z), and has a second through hole 131. The first through hole 121, the second through hole 131 and the screw hole 111 overlap in the top view direction of the electronic assembly 100. The screw 140 can be locked into the screw hole 111 through the first through hole 121 and the second through hole 131.

[0030] The cover plate 130 has a first planar section 132, a second planar section 133 and a first non-planar section 134. The material of the cover plate 130 can be aluminum alloy, plastic or a combination of the above materials, but is not limited thereto. The first planar section 132 contacts the circuit board 120 and is an annular planar section. The second planar section 133 is spaced apart from the circuit board 120 and is also an annular planar section. The second planar section 133 defines the second through hole 131. The first non-planar section 134 is connected between the first planar section 132 and the second planar section 133, and the first bending direction from the first planar section 132 to the first non-planar section 134 is opposite to the second bending direction from the first non-planar section 134 to the second planar section 133.

[0031] In particular, the second through hole 131 is a circular through hole. The head of the screw 140 can be a circular head or a head of other shapes. Further, the width d1 of the second planar section 133 can be 1-2 mm. The bending angle θ1 from the first planar section 132 to the first non-planar section 134 can be 40-80 degrees. The height d2 of the second planar section to the circuit board can be 0.6-0.8 mm.

[0032] When the screw 140 is locked into the screw hole 111, the screw head 141 abuts against the second planar section 133 and covers the second through hole 131 in the top view of the electronic assembly 100. In particular, the screw head 141 abuts against the second planar section 133 and exerts a downward external force on the second planar section 133, so that the second planar section 133 is slightly moved downward under the action of the external force. When the second planar section 133 is not moved downward, the bending angle θ1 of the first planar section 132 to the first non-planar section 134 is substantially equal to the bending angle from the first non-planar section 134 to the second planar section 133. When the second planar section 133 is moved downward, the bending angle θ1 of the first planar section 132 to the first non-planar section 134 can be less than or equal to the bending angle from the first non-planar section 134 to the second planar section 133, and the second planar section 133 generates a restoring force upward, so that the screw 140 exerts a reaction force toward the second planar section 133 against the restoring force. The screw 140 is not easy to be loosened from the screw hole 111 due to the action of the reaction force. Therefore, the electronic assembly 100 is not easy to cause the screw 140 to be loosened due to vibration, and is suitable for being applied to a vehicle-mounted system or other systems prone to vibration. In addition, the width d3 of the screw head 141 abutting against the second planar section 133 can be 0.6 mm to 0.8 mm.

[0033] In some other embodiments, the cover plate 130 further has a third planar section 135 and a second non-planar section 136. The first planar section 132 is connected between the first non-planar section 134 and the second non-planar section 136. The third planar section 135 is spaced apart from the circuit board 120 and can be parallel to the first planar section 132. The second non-planar section 136 is connected between the first planar section 132 and the third planar section 135, and a third bending direction from the first planar section 132 to the second non-planar section 136 is opposite to a fourth bending direction from the second non-planar section 136 to the third planar section 135.

[0034] In particular, the bending angle θ2 of the first planar section 132 to the second non-planar section 136 can be 40 degrees to 70 degrees. The height d4 of the third planar section 135 to the circuit board 120 can be 1 mm to 3 mm and greater than the height d2 of the second planar section 133 to the circuit board 120. Since the height of the third planar section 135 is higher than the heights of the first planar section 132 and the second planar section 133, a groove 137 around the first planar section 132 and the second planar section 133 is defined, and the screw 140 does not protrude out of the groove 137 when locked into the screw hole 111, so that the surface of the cover plate 130 can be kept flat.

[0035] Figure 4 A partial cross-sectional view of an electronic assembly 200 according to some other embodiments of the present application is shown in FIG. 2. As shown in FIG. 2, the electronic assembly 200 includes a circuit board 220, a cover plate 230, and a screw 240. The cover plate 230 includes a first planar section 232, a first non-planar section 234, a second planar section 233, and a second non-planar section 236. The first planar section 232 is connected between the first non-planar section 234 and the second non-planar section 236. The second planar section 233 is spaced apart from the circuit board 220 and can be parallel to the first planar section 232. The second non-planar section 236 is connected between the first planar section 232 and the second planar section 233, and a third bending direction from the first planar section 232 to the second non-planar section 236 is opposite to a fourth bending direction from the second non-planar section 236 to the second planar section 233. Figure 4As shown, the electronic assembly 200 comprises a bottom plate 210, a circuit board 220, a cover plate 230 and a screw 240. The bottom plate 210, the circuit board 220 and the screw 240 are similar to the bottom plate 110, the circuit board 120 and the screw 140 of the electronic assembly 100, respectively. Figure 1

[0036] Figure 5 Figure 6 Figure 4 Figure 4 Figure 6 Figures 4 to 6 As shown, the bottom plate 210 has a screw hole 211, and the circuit board 220 is disposed on the bottom plate 210 and has a first through hole 221. The cover plate 230 has a second through hole 231, a first planar section 232, a second planar section 233 and a first non-planar section 234. The second planar section 233 is spaced apart from the circuit board 220 and is a plurality of strip-shaped planar sections 233a. The strip-shaped planar sections 233a are spaced apart around the first through hole 221 in the top view direction of the electronic assembly 200 (i.e. the opposite direction of the direction Z) and define the second through hole 231, and the first through hole 221, the second through hole 231 and the screw hole 211 overlap in the top view direction of the electronic assembly 200. The first non-planar section 234 is connected between the first planar section 232 and the second planar section 233, and is similar to the bending direction of the first non-planar section 134 of the electronic assembly 100. That is, the first bending direction from the first planar section 232 to the first non-planar section 234 is opposite to the second bending direction from the first non-planar section 234 to the second planar section 233. In addition, the bending angle from the first planar section 232 to the first non-planar section 234 is similar in size to the bending angle θ1 from the first planar section 132 to the first non-planar section 134 of the electronic assembly 100. Figure 1 Figure 1 Figure 4 The locking manner of the screw 240 and the bottom plate 210 of the electronic assembly 200 is similar to that of the electronic assembly 100. The screw 240 can pass through the first through hole 221 of the circuit board 220 and the second through hole 231 of the cover plate 230 and be locked into the screw hole 211 of the bottom plate 210. Figure 1

[0037] In particular, each strip-shaped planar section 233a has a groove 233b concave toward the circuit board 220, thereby enhancing the structural strength of the strip-shaped planar section 233a when being locked with the screw 240. Further, the length l1 and the width l2 of each strip-shaped planar section 233a can be 1-2 mm and 1.5-2 mm, respectively, and the height of each strip-shaped planar section 233a to the circuit board 220 can be similar to the height of each strip-shaped planar section 133a to the circuit board 120 of the electronic assembly 100. Figure 1 ​​​​​​​​​The height of the second planar section 133 to the circuit board 120 is the same as the height of the first planar section 132 to the circuit board 120, which can be 0.6mm to 0.8mm. The width l3 and the depth l4 of each groove 233b can be 1mm and 0.5mm to 0.7mm, respectively.

[0038] When the screw 240 is locked into the screw hole 211, the screw head 241 abuts against the strip planar sections 233a. The width l5 of the screw head 241 abutting against the second planar section 233 can be 0.6mm to 0.8mm. In particular, the screw head 241 abuts against both sides of each strip planar section 233a and exerts a downward external force on each strip planar section 233a, such that both sides of each strip planar section 233a are slightly moved downward in the direction of the groove 233b and press the groove 233b. Further, each strip planar section 233a generates a restoring force upward, such that the screw 240 generates a reaction force against each strip planar section 233a against the restoring force. The screw 240 is also not easy to be loosened from the screw hole 211 due to the reaction force. Therefore, the electronic assembly 200 is also not easy to be loosened due to vibration.

[0039] In addition, in some other embodiments, the cover plate 230 also has a third planar section 235 and a second non-planar section 236. The first planar section 232 is connected between the first non-planar section 234 and the second non-planar section 236. The second non-planar section 236 is connected between the first planar section 232 and the third planar section 235. The third planar section 235 and the second non-planar section 236 are similar to the third planar section 135 and the second non-planar section 136 of the cover plate 130, respectively, and the bending angles of the first planar section 232 to the second non-planar section 236 are also similar to the bending angles θ2 of the first planar section 132 to the second non-planar section 136. Therefore, the third planar section 235 also defines a recess 237 around the first planar section 232 and the second planar section 233, such that the screw 240 does not protrude out of the recess 237 when locked into the screw hole 211, and the surface of the cover plate 230 can remain flat. Figure 1 Figure 1 In addition, in some other embodiments, the cover plate 230 also has a third planar section 235 and a second non-planar section 236. The first planar section 232 is connected between the first non-planar section 234 and the second non-planar section 236. The second non-planar section 236 is connected between the first planar section 232 and the third planar section 235. The third planar section 235 and the second non-planar section 236 are similar to the third planar section 135 and the second non-planar section 136 of the cover plate 130, respectively, and the bending angles of the first planar section 232 to the second non-planar section 236 are also similar to the bending angles θ2 of the first planar section 132 to the second non-planar section 136. Therefore, the third planar section 235 also defines a recess 237 around the first planar section 232 and the second planar section 233, such that the screw 240 does not protrude out of the recess 237 when locked into the screw hole 211, and the surface of the cover plate 230 can remain flat.

[0040] In summary, the cover plate of the present application forms an anti-loosening structure at the first non-planar section and the second planar section, and the screw generates a reaction force against the second planar section when abutting against the second planar section, so that the screw is not easy to be loosened from the screw hole, thereby achieving the effect of anti-loosening. The electronic assembly is also not easy to be loosened when applied to a vehicle-mounted system or other systems prone to vibration. In addition, the cover plate further defines a recess around the screw through the height of the third planar section being higher than the height of the first planar section and the second planar section, so that the screw does not protrude out of the recess, thereby maintaining the flatness of the surface of the cover plate. ​

[0041] While the present disclosure has been disclosed with reference to the embodiments above, it is not intended to limit the present disclosure, and one of ordinary skill in the art, without departing from the spirit and scope of the present disclosure, can make some changes and modifications, and the protection scope of the present disclosure should be defined by the appended claims.

Claims

1. An electronic assembly, characterized by A base plate has a screw hole. A circuit board is disposed on the base plate, the circuit board has a first through hole, the first through hole overlaps the screw hole in a top view of the electronic assembly. A cover plate is disposed on the base plate, the cover plate has a first planar section, a second planar section and a first non-planar section, wherein the first planar section contacts the circuit board, the second planar section is spaced apart from the circuit board and defines a second through hole, the first non-planar section is connected between the first planar section and the second planar section, and a first bending direction from the first planar section to the first non-planar section is opposite to a second bending direction from the first non-planar section to the second planar section. A screw is locked into the screw hole through the first through hole and the second through hole, wherein a screw head of the screw abuts against the second planar section. A first bending angle from the first planar section to the first non-planar section is less than or equal to a second bending angle from the first non-planar section to the second planar section. The screw head covers the second through hole in the top view.

2. The electronic assembly of claim 1, wherein, The second through hole is a circular through hole, the screw head is a circular screw head, and the second planar section is an annular planar section.

3. The electronic assembly of claim 1, wherein, The cover plate covers the circuit board in the top view.

4. The electronic assembly of claim 1, wherein, The cover plate further has a third planar section and a second non-planar section, the first planar section is connected between the first non-planar section and the second non-planar section, the third planar section is spaced apart from the circuit board, the second non-planar section is connected between the first planar section and the third planar section, and a third bending direction from the first planar section to the second non-planar section is opposite to a fourth bending direction from the second non-planar section to the third planar section.

5. The electronic assembly of claim 1, wherein, A first height from the second planar section to the circuit board is less than a second height from the third planar section to the circuit board.

6. The electronic assembly of claim 1, wherein, The first planar section and the third planar section are substantially parallel.

7. The electronic assembly of claim 6, wherein, The second planar section is a plurality of strip-shaped planar sections.

8. The electronic assembly of claim 7, wherein, Each strip-shaped planar section has a groove concave toward the circuit board.

9. The electronic assembly of claim 1, wherein, ​ 10. The electronic assembly of claim 9, wherein, ​

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