Fan with grounding function

Abstract

The invention provides a fan with a grounding function. The fan comprises an internal assembly, a shell and a metal grounding piece. The internal assembly comprises a circuit board; the shell is provided with an in-shell space and comprises a metal plate and a side wall arranged on the metal plate, the circuit board is arranged on the shell, the metal plate is a conductive metal plate, at least one part of the in-shell space is jointly formed between the metal plate and the side wall, and the internal component is contained in the in-shell space; the metal grounding piece is a conductive metal piece and is connected between the metal plate and the circuit board, so that the circuit board is electrically connected to the metal plate through the metal grounding piece. Therefore, the double effects of grounding and maintaining or enhancing the structural strength of the fan can be achieved.

Description

Technical Field

[0001] This invention relates to a fan, and more particularly to a fan with a grounding function. Background Technology

[0002] Regarding fans (such as circulation fans or cooling fans), in order to meet the requirements of thinness and lightness, the existing technology directly makes their plastic shells thinner.

[0003] However, the structural strength of the plastic casing is compromised when it is made thinner. In particular, the plastic base plate used to support the fan wheel, circuit board, stator assembly and rotor assembly is also made thinner. After a period of operation, the thinned plastic base plate of the existing fan is too fragile.

[0004] In addition, existing fans do not have a grounding function. Because they lack a grounding function, they cannot release abnormal or excess electrical energy. This means that existing fans cannot protect themselves, or even the electronic devices installed with them.

[0005] Therefore, overcoming all the problems of the prior art is a major issue that the inventors of this application urgently need to address. Summary of the Invention

[0006] (a) Technical problems to be solved The purpose of this invention is to provide a fan with a grounding function, which can achieve grounding while ensuring structural strength.

[0007] (II) Technical Solution To achieve the above objectives, this application provides a fan with a grounding function, comprising: An internal component, comprising a circuit board; A housing having an internal space, a circuit board disposed within the internal space of the housing, the housing including a metal plate and a side wall disposed on the metal plate, the metal plate being a conductive metal sheet, the metal plate and the side wall together forming at least a portion of the internal space of the housing, and the internal component being housed within the internal space of the housing. And a metal grounding element, which is a conductive metal element and is connected between the metal plate and the circuit board; wherein the circuit board is electrically connected to the metal plate via the metal grounding element.

[0008] Furthermore, the circuit board is fixed to the metal plate.

[0009] Furthermore, the metal grounding component is a grounding foot, which extends integrally from the metal plate.

[0010] Furthermore, the metal plate has a perimeter, and the sidewall is provided corresponding to the perimeter.

[0011] Furthermore, the metal plate includes a central portion, a peripheral portion, and a plurality of connecting ribs. The peripheral portions are spaced apart from each other around the central portion. The peripheral portions and the central portion each have two opposite edges spaced apart from each other. Each connecting rib connects between the edge of the peripheral portion and the edge of the central portion. The circuit board is fixed to the central portion and has a conductive portion. The metal grounding member extends integrally from one of the two edges and is inserted into the conductive portion.

[0012] Furthermore, the metal plate has at least one opening between the edge of the peripheral portion and the edge of the central portion, which are spaced apart from each other, and the metal grounding member is inserted into the conductive portion through the opening.

[0013] Furthermore, the housing also includes a glue base, which is a polymer compound base. The glue base is disposed on the metal plate and has a bushing structure. The internal component also includes a fan wheel, which is rotatably connected to the bushing structure. The circuit board is disposed on the metal plate via the glue base.

[0014] Furthermore, the adhesive base is molded onto the metal plate.

[0015] Furthermore, the sidewall is a polymer compound wall panel.

[0016] Furthermore, the sidewall is coated with adhesive and molded onto the metal plate.

[0017] Furthermore, the outer casing includes a first housing and a second housing fixed to each other. The first housing includes the metal plate and the sidewall. The sidewall and the second housing each have a plurality of fixing members and a plurality of fixing parts corresponding to each other, and each of the fixing members and each of the fixing parts is fixed to each other.

[0018] Furthermore, the fixing member is a protruding post, and each fixing member extends integrally from the side wall. The fixing part is an insertion hole corresponding to the fixing member. Each fixing part is opened in the second housing. Each fixing member is inserted into the corresponding fixing part and fixed to each other by heat fusion.

[0019] Furthermore, the side wall is a metal wall panel.

[0020] Furthermore, the outer casing comprises a first housing and a second housing fixed to each other, the first housing comprising the metal plate and the sidewall.

[0021] Furthermore, the metal plate carries the internal components.

[0022] (III) Beneficial Effects Compared with the prior art, this application has the following advantages: it has the dual effect of grounding and maintaining or strengthening the structural strength of the fan. Attached Figure Description

[0023] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0024] Figure 1 is a top perspective view of the first housing in the fan of this application.

[0025] Figure 2 is a cross-sectional view of this application based on Figure 1.

[0026] Figure 3 is a three-dimensional exploded view of the circuit board and the first housing in the fan of this application when viewed from below.

[0027] Figure 4 is a three-dimensional exploded view of the fan of this application from a top view.

[0028] Figure 5 is a three-dimensional schematic diagram of the fan of this application when viewed from below.

[0029] Figure 6 is a cross-sectional view of the fan in this application.

[0030] Explanation of icon numbers: Detailed Implementation

[0031] The detailed description and technical content of this application are explained below in conjunction with the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this application.

[0032] This application provides a fan with a grounding function, which can be of various types. In this embodiment, a cooling fan as shown in the figure is used as an example for illustration, but it is not limited to this.

[0033] like Figures 1 to 6 As shown, the fan with grounding function (hereinafter referred to as "fan") of this application includes: a housing 1 and an internal component 4 installed inside the housing 1, and also includes, as shown in the figure Figure 5 The wire assembly shown has a connector (not marked) at one end for connection.

[0034] like Figure 4 As shown, internal component 4 includes: a circuit board 41, a fan wheel 42, and a stator and a rotor, neither of which are marked with component symbols.

[0035] The outer casing 1 has an internal space S (see Figure 6The outer shell 1 can be a single-piece shell (not shown in the figure), or it can be a two-piece combined shell as shown in the figure, including a first shell 1a and a second shell 1b. This application does not limit this. In this embodiment, the two-piece combined shell is used as an example for illustration. The first shell 1a and the second shell 1b are fixed to each other to form the internal space S of the shell.

[0036] The first housing 1a includes a metal plate 11 and a side wall 12, and further includes a rubber base 15. The metal plate 11 can be a metal sheet made of any conductive metal, and it has the characteristics seen in... Figure 1 The perimeter 1121; the side wall 12 can be a rubber material or a metal wall panel, this application is not limited in this regard, this embodiment takes a rubber material as an example for description, the rubber material can be, for example, a polymer compound wall panel made of polymer compound; the adhesive base 15 can also be a rubber material, for example, a polymer compound base made of polymer compound, which has the characteristics seen in Figure 1 and Figure 2 A bushing structure 155. The polymer compound can be, for example, plastic, rubber, and silicone, but is not limited thereto. In this embodiment, plastic is used as an example for illustration.

[0037] The sidewall 12 is disposed on the metal plate 11, for example, it can be disposed on the metal plate 11 corresponding to the perimeter 1121, and the sidewall 12 is relatively upright on the metal plate 11. Specifically, the sidewall 12 can be formed and attached to the metal plate 11 corresponding to the perimeter 1121 by an overmolding method.

[0038] The metal plate 11 includes a central portion 111, a peripheral portion 112, and a plurality of connecting ribs 113. The peripheral portion 112 surrounds the central portion 111 in a spaced-apart manner, such that the peripheral portion 112 and the central portion 111 each have two spaced-apart opposing edges: an inner edge 1124 and an outer edge 1114. Each connecting rib 113 bridges between the outer edge 1114 and the inner edge 1124, thereby forming a plurality of openings 115 between the inner edge 1124, the outer edge 1114, and each connecting rib 113.

[0039] The adhesive base 15 is fixed on the metal plate 11, specifically in the central portion 111. Preferably, the central portion 111 has a plurality of holes (component symbols not indicated) so that when the adhesive base 15 is overmolded in the central portion 111, it can bond with each hole to enhance the bonding strength.

[0040] Internal component 4 is housed within the shell space S. It should be noted that the first shell 1a forms a recessed space (not indicated) between its metal plate 11 and sidewall 12. This recessed space can be all or part of the shell space S; in this embodiment, the recessed space is as follows... Figure 6 The diagram shows the entirety of the internal space S, but is not limited to it.

[0041] The aforementioned circuit board 41 is located within the internal space S of the housing. For example, it can be disposed in the second housing 1b (not shown in the figure), or it can be fixed to the metal plate 11 of the first housing 1a via a mounting base 15 as shown in the figure. Preferably, the circuit board 41 is fixed to the central portion 111 via the mounting base 15, so that the insulating property of the mounting base 15 isolates the circuit board 41 from the central portion 111. The circuit board 41 has a conductive portion 411, such as... Figure 3 The conductive part 411 shown may be a conductive socket, but is not limited to this.

[0042] The aforementioned fan wheel 42 is also rotatably connected to the bushing structure 155 within the housing space S, while the aforementioned stator and rotor are respectively disposed on the rubber seat 15 and the fan wheel 42.

[0043] The metal grounding component 16 can be a separate component (not shown in the figure, for example, a separate metal conductive foot), or it can extend integrally from the metal plate 11 as shown in the figure. This application does not limit this. In this embodiment, it is described as being integrally formed on the metal plate 11.

[0044] The metal grounding component 16 can be any type of conductive metal component, such as a metal terminal (not shown in the figure) or a grounding pin 161 as shown in the figure (see...). Figure 5 The grounding pin 161 is connected between the metal plate 11 and the circuit board 41. Preferably, the grounding pin 161 extends integrally from the outer edge 1114 of the central portion 111 towards the internal space S and is bent. It should be noted that, as Figure 1 and Figure 3 As shown, the central portion 111 has a clearance notch 1117 corresponding to one of the openings 115 to avoid a corner of the circuit board 41. The grounding pin 161 extends integrally from the central portion 111 corresponding to the clearance notch 1117. Therefore, as Figure 5 As shown, when the circuit board 41 is fixed in the central portion 111, the portion of the circuit board 41 with the conductive part 411 will be exposed through the clearance notch 1117, thereby facilitating the insertion of the metal grounding member 16 (grounding pin 161) into the conductive part 411 through the clearance notch 1117. Furthermore, the other end of the aforementioned wire assembly is as follows... Figure 3 and Figure 5 It is connected to the circuit board 41 via the clearance notch 1117.

[0045] like Figure 6 As shown, the metal grounding member 16 is inserted into and soldered to the conductive part 411, so that the circuit board 41 and the metal plate 11 can be electrically connected to each other through the metal grounding member 16, thus completing the grounding.

[0046] In this way, such as Figure 6As shown, since this application uses a metal grounding member 16 to electrically connect the circuit board 41 to the metal plate 11, the metal grounding member 16 can simultaneously release electrical energy (including static electricity, leakage current, surge, and electromagnetic interference noise) from the metal structure (such as the metal plate 11 and / or the second housing 1b, which may also be made of metal), the circuit board 41, and the electronic components on the circuit board 41. This achieves the effect of protecting the fan of this application, and can even protect various electronic devices equipped with the fan of this application. Furthermore, since the first housing 1a is used to support the internal components 4, this application ensures the structural strength of the fan by designing at least the bottom plate of the first housing 1a as a metal plate 11. Even if the housing 1 is made thinner to meet the requirements of lightness and thinness, the presence of the metal plate 11 can maintain or further strengthen the structural strength of the fan of this application. In short, this application has the dual effect of grounding and maintaining or strengthening the structural strength of the fan.

[0047] like Figures 4 to 6 As shown, the first housing 1a and the second housing 1b can be fixed in various feasible ways, and this application does not limit this. In this embodiment, the following description in this paragraph is used as an example. The second housing 1b and the side wall 12 are respectively provided with a plurality of fixing members F1 and a plurality of fixing parts F2 corresponding to each other. Therefore, by fixing each fixing member F1 to each fixing part F2, the second housing 1b can be fixed to the first housing 1a.

[0048] Specifically, the fastener F1 can be a protruding post integrally extending from the top of the side wall 12 (but is not limited to this), and the fastening part F2 can be an insertion hole opened in the second housing 1b corresponding to each fastener F1 (but is not limited to this). In this way, as long as each fastener F1 is inserted into the corresponding fastening part F2, and each fastener F1 protruding from each fastening part F2 is heat-fused, each fastener F1 and each fastening part F2 can be fixed to each other.

[0049] In addition, such as Figures 1 to 3 as well as Figure 5 As shown, to achieve a better connection between the side wall 12 and the outer portion 112, and between the adhesive base 15 and the central portion 111, a portion 122 of the wall thickness of the side wall 12 (referring to the thickness of the side wall 12) partially protrudes from the periphery 1121 of the metal plate 11, thus securing it in a ring shape to the periphery 1121 of the metal plate 11. The adhesive base 15 extends to the outer edge 1114 of the central portion 111 via a corresponding clearance notch 1117, forming an extended portion 152 that also secures itself to the outer edge 1114 of the central portion 111. It should also be noted that the extended portion 152 provides insulation between the metal grounding member 16 and the central portion 111.

[0050] For example Figure 4 and Figure 6As shown, the second housing 1b also has an opening 17 corresponding to the fan wheel 42, so as to facilitate the airflow driven by the fan wheel 42 between the housing 1 and the outside.

[0051] In conclusion, the fan with grounding function in this application can indeed achieve the expected purpose and effect, and can solve the defects of the prior art. Therefore, this patent application is filed.

[0052] The above description is only a preferred embodiment of this application and does not limit the scope of patent protection of this application. All equivalent structural changes made based on the content of this application specification and drawings are similarly included in the scope of protection of this application.

Claims

1. A fan with grounding function, characterized in that, include: An internal component, comprising a circuit board; An outer casing having an inner space, the circuit board being disposed within the inner space, the outer casing comprising a metal plate and a side wall disposed on the metal plate, the metal plate being a conductive metal sheet, the metal plate and the side wall together forming at least a portion of the inner space, the internal components being housed within the inner space; And a metal grounding component, which is a conductive metal component and is connected between the metal plate and the circuit board; The circuit board is electrically connected to the metal plate via the metal grounding component.

2. The fan with grounding function according to claim 1, characterized in that: The circuit board is fixed to the metal plate.

3. The fan with grounding function according to claim 1, characterized in that: The metal grounding element is a grounding foot, which extends integrally from the metal plate.

4. The fan with grounding function according to claim 1, characterized in that: The metal plate has a perimeter, and the sidewall is provided corresponding to the perimeter.

5. The fan with grounding function according to claim 1, characterized in that: The metal plate includes a central portion, a peripheral portion, and a plurality of connecting ribs. The peripheral portions surround the central portion at intervals. The peripheral portions and the central portion each have two opposite edges spaced apart from each other. Each connecting rib connects between the edge of the peripheral portion and the edge of the central portion. The circuit board is fixed to the central portion and has a conductive portion. The metal grounding member extends integrally from one of the two edges and is inserted into the conductive portion.

6. The fan with grounding function according to claim 5, characterized in that: The metal plate has at least one opening between the edge of the peripheral portion and the edge of the central portion, which are spaced apart from each other, and the metal grounding member is inserted into the conductive portion through the opening.

7. The fan with grounding function according to claim 1, characterized in that: The housing also includes a glue base, which is a polymer compound base. The glue base is disposed on the metal plate and has a bushing structure. The internal component also includes a fan wheel, which is rotatably connected to the bushing structure. The circuit board is disposed on the metal plate via the glue base.

8. The fan with grounding function according to claim 7, characterized in that: The adhesive base is molded onto the metal plate.

9. The fan with grounding function according to claim 1, characterized in that: The sidewall is a polymer compound wall panel.

10. The fan with grounding function according to claim 9, characterized in that: The sidewall is coated with adhesive and molded onto the metal plate.

11. The fan with grounding function according to claim 9, characterized in that: The outer casing includes a first housing and a second housing fixed to each other. The first housing includes the metal plate and the sidewall. The sidewall and the second housing each have a plurality of fixing members and a plurality of fixing parts corresponding to each other, and each of the fixing members and each of the fixing parts is fixed to each other.

12. The fan with grounding function according to claim 11, characterized in that: The fastener is a protruding post, and each fastener extends integrally from the side wall. The fixing part is a hole corresponding to the fastener. Each fixing part is opened in the second housing. Each fastener is inserted into the corresponding fixing part and fixed to each other by heat fusion.

13. The fan with grounding function according to claim 1, characterized in that: The side wall is a metal wall panel.

14. The fan with grounding function according to claim 1, characterized in that: The outer casing comprises a first housing and a second housing fixed to each other, the first housing comprising the metal plate and the sidewalls.

15. The fan with grounding function according to claim 1, characterized in that: The metal plate carries the internal components.

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