A double-plate common-electrode motor structure and a cooling fan with the same

Abstract

This utility model discloses a dual-board common-electric motor structure and a fan having the same. At least one pin is vertically inserted through the silicon steel sheet assembly of the motor, and the pin is insulated from the silicon steel sheet assembly. The upper and lower ends of the pin are exposed above and below the silicon steel sheet assembly, respectively. A first circuit board located above the silicon steel sheet assembly is electrically connected to the upper end of the pin and physically fixed through a connection point. A second circuit board located below the silicon steel sheet assembly is electrically connected to the lower end of the pin and physically fixed through a connection point, thereby providing electrical connection between the first and second circuit boards. Compared with conventional designs, this utility model, through the pin penetrating the silicon steel sheet assembly, enables the first and second circuit boards to form a common-electric circuit, where one is energized while the other is energized. This eliminates the need for separate power supply lines and additional fixing components, significantly simplifying the structure, reducing costs, improving assembly efficiency, and enhancing connection reliability.

Description

Technical Field

[0001] This utility model relates to the field of cooling fan technology, and in particular to a dual-plate common electric motor structure and a cooling fan having the same. Background Technology

[0002] In existing cooling fan motors, the two circuit boards (such as the driver board and the circuit board for display lighting effects / screen) located above and below the silicon steel sheet assembly require independent power supply lines, and the display board also requires an additional fixing structure, resulting in complex wiring, many parts, cumbersome assembly, high cost, and compromised reliability. Utility Model Content

[0003] The main purpose of this utility model is to propose a dual-board common-electric motor structure, namely a cooling fan, which aims to provide a simplified dual-board integrated motor structure.

[0004] To achieve the above objectives, this utility model proposes a dual-plate common-electric motor structure, comprising:

[0005] Silicon steel sheet assembly;

[0006] The first circuit board is located above the silicon steel sheet assembly;

[0007] The second circuit board is located below the silicon steel sheet assembly;

[0008] At least one pin, the pin being perpendicularly inserted through the silicon steel sheet assembly and in insulating contact with the silicon steel sheet assembly;

[0009] The upper end of the pin is exposed and electrically connected to the first circuit board, and the lower end of the pin is exposed and electrically connected to the second circuit board, so that the first circuit board and the second circuit board form a common conductive circuit.

[0010] The first circuit board is physically fixed by an electrical connection point at the upper end of the pin, and the second circuit board is physically fixed by an electrical connection point at the lower end of the pin.

[0011] Preferably, the first circuit board is a lighting effect display board or a screen display board.

[0012] Preferably, the second circuit board is a motor drive control board.

[0013] Preferably, it also includes an insulating support, which is sleeved on the outside of the silicon steel sheet assembly;

[0014] The insulating support is provided with at least one hollow insert post, which penetrates vertically through the silicon steel sheet assembly and has open ends.

[0015] The pin is inserted into the post, and forms an insulating barrier between the post and the silicon steel sheet assembly.

[0016] Preferably, the silicon steel sheet assembly has multiple magnetic pole portions formed at circumferential intervals;

[0017] The number of the insertion posts is the same as the number of magnetic poles, and they are arranged in a one-to-one correspondence.

[0018] Preferably, the insulating support is a split structure, including an upper support and a lower support;

[0019] The upper support and the lower support are connected to form a cavity that covers the silicon steel sheet assembly;

[0020] The insertion post is formed by connecting the semi-tube structures respectively located on the upper and lower supports.

[0021] Preferably, the upper bracket and the lower bracket are fixed by an integrated injection molding process, coil winding fixation, or snap-fit ​​structure.

[0022] Preferably, the upper bracket has an upper support portion at the top corresponding to the pin position, and the lower bracket has a lower support portion at the bottom corresponding to the pin position;

[0023] The upper support and the lower support are respectively provided with a first guide hole and a second guide hole for the insertion pin to pass through;

[0024] The upper and lower ends of the pin pass through the first guide hole and the second guide hole respectively and are exposed to the outside, and are electrically connected to the first circuit board and the second circuit board respectively.

[0025] The upper surface of the upper support portion supports the first circuit board, and the lower surface of the lower support portion abuts against the second circuit board.

[0026] Preferably, the upper support and the lower support are cylindrical structures with a square cross-section;

[0027] The first guide hole is located at the axial center of the upper support part, and the hole diameter is smaller than the inner diameter of the insertion post;

[0028] The second guide hole is located at the axial center of the lower support part, and its diameter is smaller than the inner diameter of the insertion post.

[0029] This utility model also proposes a cooling fan, including a dual-plate common electric motor structure, wherein the dual-plate common electric motor structure is the aforementioned dual-plate common electric motor structure.

[0030] This invention features at least one pin vertically penetrating the silicon steel sheet assembly of a motor, with the pin insulated from the assembly. The upper and lower ends of the pin are exposed above and below the silicon steel sheet assembly, respectively. A first circuit board located above the assembly is electrically connected to the upper end of the pin and physically fixed via a connection point. A second circuit board located below the assembly is electrically connected to the lower end of the pin and physically fixed via a connection point, thus providing electrical connectivity between the first and second circuit boards. Compared to conventional designs, this invention, through the pin penetrating the silicon steel sheet assembly, allows the first and second circuit boards to form a shared conductive circuit, where one is energized while the other is energized. This eliminates the need for separate power supply lines and additional fixing components, significantly simplifying the structure, reducing costs, improving assembly efficiency, and enhancing connection reliability. Attached Figure Description

[0031] Figure 1 This is an assembly drawing of the first circuit board, the second circuit board, the insulating bracket, the pins, and the silicon steel sheet assembly;

[0032] Figure 2 for Figure 1 Exploded view;

[0033] Figure 3 This is a schematic diagram of a cooling fan. Detailed Implementation

[0034] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0035] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a dual-plate common-electric motor structure.

[0038] In this embodiment of the utility model, such as Figures 1 to 3 As shown, the dual-plate common-electric motor structure includes:

[0039] Silicon steel sheet assembly 1;

[0040] The first circuit board 2 is disposed above the silicon steel sheet assembly 1;

[0041] The second circuit board 3 is located below the silicon steel sheet group 1;

[0042] At least one pin 4, the pin 4 penetrating vertically through the silicon steel sheet assembly 1 and in insulating contact with the silicon steel sheet assembly 1;

[0043] The upper end of the pin 4 is exposed and electrically connected to the first circuit board 2, and the lower end of the pin 4 is exposed and electrically connected to the second circuit board 3, so that the first circuit board and the second circuit board form a common conductive circuit.

[0044] The first circuit board 2 is physically fixed by an electrical connection point at the upper end of the pin 4, and the second circuit board 3 is physically fixed by an electrical connection point at the lower end of the pin 4.

[0045] Specifically, the silicon steel sheet group 1 is composed of multiple silicon steel sheets stacked together.

[0046] It should be noted that the dual-plate common electric motor also includes a rotor structure. The specific rotor structure and other structures of the motor can be found in the existing technology, and their specific structural principles will not be described in detail here.

[0047] Specifically, the first circuit board 2 is a lighting effect display board or a screen display board.

[0048] Specifically, the second circuit board 3 is a motor drive control board.

[0049] Specifically, it also includes an insulating support 5, which is sleeved on the outside of the silicon steel sheet assembly 1;

[0050] The insulating support 5 is provided with at least one hollow insert post 51, which penetrates vertically through the silicon steel sheet assembly 1 and has open ends.

[0051] The pin 4 is inserted into the post 51, and forms an insulating barrier between the post 51 and the silicon steel sheet assembly 1.

[0052] Specifically, the shape of the silicon steel sheet is determined based on actual production needs, for example:

[0053] The silicon steel sheet assembly 1 has multiple magnetic pole portions 11 formed circumferentially at intervals;

[0054] The number of the inserts 51 is the same as the number of the magnetic poles 11, and they are arranged in a one-to-one correspondence.

[0055] Specifically, in this embodiment, each of the magnetic pole portions is provided with a through hole for inserting a post;

[0056] In another embodiment, each magnetic pole portion may be provided with multiple through holes, and the number of the insertion pins, the number of through holes, and the number of the insertion needles are the same.

[0057] Specifically, the insulating support 5 is a split structure, including an upper support and a lower support;

[0058] After the upper support and the lower support are connected, a cavity 52 is formed that covers the silicon steel sheet assembly 1;

[0059] The insertion post 51 is formed by the connection of semi-tube structures respectively located on the upper support and the lower support.

[0060] Specifically, the upper and lower brackets are fixed by an integrated injection molding process, coil winding fixation, or snap-fit ​​structure.

[0061] Specifically, the upper support 53 is provided at the top of the upper bracket corresponding to the position of the pin 4, and the lower support 54 is provided at the bottom of the lower bracket corresponding to the position of the pin 4.

[0062] The upper support portion 53 and the lower support portion 54 are respectively provided with a first guide hole 55 and a second guide hole for the insertion pin 4 to pass through.

[0063] The upper and lower ends of the pin 4 pass through the first guide hole 55 and the second guide hole respectively and are exposed to the outside, and are electrically connected to the first circuit board 2 and the second circuit board 3 respectively.

[0064] The upper surface of the upper support portion 53 supports the first circuit board 2, and the lower surface of the lower support portion 54 abuts against the second circuit board 3.

[0065] Specifically, the upper support portion 53 and the lower support portion 54 are cylindrical structures with a square cross-section;

[0066] The first guide hole 55 is located at the axial center of the upper support 53, and the hole diameter is smaller than the inner diameter of the insertion post 51;

[0067] The second guide hole is located at the axial center of the lower support 54, and the hole diameter is smaller than the inner diameter of the insertion post 51.

[0068] This utility model also proposes a cooling fan, including a dual-plate common electric motor structure. For the specific structure of the dual-plate common electric motor structure, please refer to the above embodiments. Since this cooling fan adopts all the technical solutions of all the above embodiments of the dual-plate common electric motor structure, it has at least all the beneficial effects brought by the technical solutions of the above dual-plate common electric motor structure, which will not be described in detail here.

[0069] This invention features at least one pin vertically penetrating the silicon steel sheet assembly of a motor, with the pin insulated from the assembly. The upper and lower ends of the pin are exposed above and below the silicon steel sheet assembly, respectively. A first circuit board located above the assembly is electrically connected to the upper end of the pin and physically fixed via a connection point. A second circuit board located below the assembly is electrically connected to the lower end of the pin and physically fixed via a connection point, thus providing electrical connectivity between the first and second circuit boards. Compared to conventional designs, this invention, through the pin penetrating the silicon steel sheet assembly, allows the first and second circuit boards to form a shared conductive circuit, where one is energized while the other is energized. This eliminates the need for separate power supply lines and additional fixing components, significantly simplifying the structure, reducing costs, improving assembly efficiency, and enhancing connection reliability.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A dual-plate common-electric motor structure, characterized in that, include: Silicon steel sheet assembly (1); The first circuit board (2) is disposed above the silicon steel sheet assembly (1); The second circuit board (3) is located below the silicon steel sheet group (1); At least one pin (4) is inserted vertically through the silicon steel sheet assembly (1) and in insulating contact with the silicon steel sheet assembly (1); The upper end of the pin (4) is exposed and electrically connected to the first circuit board (2), and the lower end of the pin (4) is exposed and electrically connected to the second circuit board (3), so that the first circuit board and the second circuit board form a common conductive circuit. The first circuit board (2) is physically fixed by an electrical connection point at the upper end of the pin (4), and the second circuit board (3) is physically fixed by an electrical connection point at the lower end of the pin (4).

2. The dual-plate common-electric motor structure as described in claim 1, characterized in that: The first circuit board (2) is a lighting effect display board or a screen display board.

3. The dual-plate common-electric motor structure as described in claim 1, characterized in that: The second circuit board (3) is a motor drive control board.

4. The dual-plate common-electric motor structure as described in claim 1, characterized in that: It also includes an insulating support (5), which is sleeved on the outside of the silicon steel sheet assembly (1); The insulating support (5) is provided with at least one hollow insert (51), the insert (51) penetrates vertically through the silicon steel sheet assembly (1), and both ends of the insert (51) are open. The pin (4) is inserted into the post (51) and forms an insulating barrier with the silicon steel sheet assembly (1) through the post (51).

5. The dual-plate common-electric motor structure as described in claim 4, characterized in that: The silicon steel sheet assembly (1) has multiple magnetic pole portions (11) formed circumferentially at intervals. The number of the inserts (51) is the same as the number of the magnetic poles (11) and they are arranged in a one-to-one correspondence.

6. The dual-plate common-electric motor structure as described in claim 4, characterized in that: The insulating support (5) is a split structure, including an upper support and a lower support; After the upper support and the lower support are connected, a cavity (52) is formed to cover the silicon steel sheet group (1). The insert (51) is formed by connecting the semi-tube structures respectively located on the upper support and the lower support.

7. The dual-plate common-electric motor structure as described in claim 6, characterized in that: The upper and lower brackets are fixed by an integrated injection molding process, coil winding fixation, or snap-fit ​​structure.

8. The dual-plate common-electric motor structure as described in claim 6, characterized in that: The upper support is provided with an upper support part (53) at the top of the upper bracket corresponding to the position of the pin (4), and the lower support is provided with a lower support part (54) at the bottom of the lower bracket corresponding to the position of the pin (4). The upper support (53) and the lower support (54) are respectively provided with a first guide hole (55) and a second guide hole for the insertion pin (4) to pass through; The upper and lower ends of the pin (4) are exposed to the outside after passing through the first guide hole (55) and the second guide hole respectively, and are electrically connected to the first circuit board (2) and the second circuit board (3) respectively. The upper surface of the upper support (53) supports the first circuit board (2), and the lower surface of the lower support (54) abuts against the second circuit board (3).

9. The dual-plate common-electric motor structure as described in claim 8, characterized in that: The upper support (53) and lower support (54) are columnar structures with square cross-sections; The first guide hole (55) is located at the axial position of the upper support (53), and the hole diameter is smaller than the inner diameter of the insert (51); The second guide hole is located at the axial position of the lower support (54), and the hole diameter is smaller than the inner diameter of the insert (51).

10. A cooling fan, characterized in that: Including the dual-plate common-electric motor structure as described in any one of claims 1-9.

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