Series-connected fan frames and series-connected fans

Abstract

A series-connected fan frame is disclosed to address the problem of interference between the wires and fan blades in existing series-connected fans. It includes: a first fan frame with a frame body having a first limiting region located between two adjacent connecting members; a second fan frame with a frame body having a second limiting region located between two adjacent connecting members; and a limiting component having a first stop and a second stop, the first stop extending laterally between the two connecting members in the first limiting region, and the second stop extending laterally between the two connecting members in the second limiting region. This invention also provides a series-connected fan. This achieves the effect of smooth fan rotation.

Description

Technical Field

[0001] This utility model relates to a cooling fan frame structure, and more particularly to a series fan frame and series fans for connecting two fan groups in series. Background Technology

[0002] Existing series fans may have two fan frames and two fan wheels, each fan wheel rotatably located within its respective fan frame. Furthermore, the series fan may have a wire (e.g., a power line), one end of which can be connected to a circuit board within the fan frame, and the other end of which can extend from the fan frame and be electrically connected to an external power source. This external power source can then supply power to the cooling fan via the wire to drive the fan wheels to rotate. However, during installation, existing series fans are prone to compressing the wire, causing it to bend within the fan frame. This bent wire can easily extend between the fan blades, interfering with their rotation.

[0003] In view of this, there is indeed a need to improve the existing series-connected sector frames. Utility Model Content

[0004] To solve the above problems, the purpose of this utility model is to provide a series-connected fan frame and a series-connected fan, which can avoid interference between the wires and the fan blades.

[0005] The directional terms or similar terms used throughout this utility model, such as "front", "back", "left", "right", "top", "bottom", "inner", "outer", "side", etc., are mainly for reference to the directions in the accompanying drawings. Each directional term or similar term is only used to assist in explaining and understanding the various embodiments of this utility model and is not intended to limit this utility model.

[0006] The use of the quantifiers “a” or “an” for the elements and components described throughout this utility model is merely for convenience and to provide the general meaning of the scope of this utility model; in this utility model, it should be interpreted as including one or at least one, and a single concept also includes multiple cases, unless it clearly means otherwise.

[0007] The terms “first,” “second,” … and “Nth” used throughout this utility model are mainly used to distinguish different elements or features (such as elements, directions, or steps), and do not indicate the maximum or minimum number of these elements or features possessed by a corresponding subject or method, nor do they limit the order of priority.

[0008] The terms "combination," "integration," or "assembly" used throughout this utility model mainly include those that allow for separation without damaging the components after connection, or those that make the components inseparable after connection. Those skilled in the art can choose the appropriate term based on the material of the components to be connected or the assembly requirements.

[0009] The present invention relates to a series-connected fan frame, comprising: a first fan frame having a frame body connected to a first base body via a plurality of connectors, the frame body having a first limiting region located between two adjacent connectors; a second fan frame having a frame body connected to a second base body via a plurality of connectors, the second base body being connected to the frame body of the second fan frame via a plurality of connectors, the frame body of the second fan frame having a second limiting region located between two adjacent connectors; and a limiting component having a first stop portion and a second stop portion, the first stop portion extending laterally between two connectors in the first limiting region, and the second stop portion extending laterally between two connectors in the second limiting region.

[0010] Therefore, the series fan frame of this utility model forms a first limiting area and a second limiting area between two adjacent connecting members through the first fan frame and the second fan frame, respectively. The first stop part of the limiting component is located in the first limiting area, and the second stop part is located in the second limiting area. This allows several wires to be axially limited by the first stop part and the second stop part in the first limiting area and the second limiting area, respectively. This avoids the several wires from bending axially in the direction of the fan wheel and causing interference, thereby achieving the effect of smooth fan rotation.

[0011] The first limiting area and the second limiting area are axially aligned. In this way, several wires in the first limiting area and the second limiting area can be located between the first stop and the second stop, so that the several wires can be simultaneously limited by the first stop and the second stop.

[0012] The first base has a base plate, and a ring wall is attached to the base plate. The ring wall has a cable management opening, which is radially located in the first limiting area. In this way, the plurality of wires can extend from the cable management opening to enter the first limiting area.

[0013] The first frame has a first ring frame and a second ring frame axially opposite each other. A side wall connects the first ring frame and the second ring frame. Several connectors are radially connected to the first base body via the first ring frame. The first ring frame has a wire groove, which is radially positioned opposite the cable management opening. This allows the several wires to extend from the first frame through the cable management opening and the wire groove.

[0014] The second housing has a base plate, and a ring wall is attached to the base plate. The ring wall has a cable management opening, which is radially located in the second limiting area. This allows the multiple wires to extend from the cable management opening and enter the second limiting area.

[0015] The second frame has a first ring frame and a second ring frame axially opposite each other. A side wall connects the first ring frame and the second ring frame. Several connectors are radially connected to the second frame via the first ring frame. The first ring frame has a wire groove, which is radially positioned opposite the cable management opening. This allows the wires to extend from the second frame through the cable management opening and the wire groove.

[0016] In this configuration, the first base of the first panel frame is adjacent to the second base of the second panel frame. This allows the wires extending from the second base and the wires extending from the first base to be neatly organized, resulting in improved cable management convenience.

[0017] The first stop portion has a connecting end connected to one of the connectors, and a free end extending toward an adjacent connector. The free end also has a bent section extending axially toward the second sector frame. Thus, the bent section confines the conductors between the connecting end and the free end, preventing the conductors from detaching from the first stop portion.

[0018] The second stop portion has a connecting end connected to one of the connectors, and a free end extending toward an adjacent connector. The free end also has a bent section extending axially toward the first sector frame. Thus, the bent section confines the conductors between the connecting end and the free end, preventing the conductors from detaching from the second stop portion.

[0019] The first stop and the second stop are at least partially axially aligned. This reduces the obstruction of airflow through the first and second fan frames by the first and second stopes in the axial direction.

[0020] The first stop portion and the second stop portion are axially offset. In this way, the first stop portion and the second stop portion can jointly form a better limiting range for the plurality of wires, thereby ensuring that the plurality of wires can form a radial extension effect.

[0021] The first stop and the second stop have an axial distance between them, which is greater than or equal to the diameter of a conductor. This allows the conductors to extend radially smoothly between the first and second stopes without bending.

[0022] This utility model discloses a series-connected fan, comprising: the aforementioned series-connected fan frame; two stator assemblies located respectively in the first and second bases, with the conductors of each stator assembly extending radially into the first and second limiting regions, and the first and second stop portions respectively providing axial limiting for each conductor; and two fan wheels, with the two stator assemblies driving the two fan wheels to rotate. This design avoids interference caused by the conductors bending axially towards the fan wheels, thus ensuring smooth fan rotation. Attached Figure Description

[0023] Figure 1 : An exploded perspective view of a preferred embodiment of the present invention;

[0024] Figure 2 : Front view of a preferred embodiment of the present invention;

[0025] Figure 3 : A cross-sectional view of a preferred embodiment of the present invention;

[0026] Figure 4 :like Figure 3 The first stop portion and the second stop portion are axially misaligned.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1: First Sector

[0029] 11,21: Frame Body

[0030] 11a, 21a: First ring frame

[0031] 11b, 21b: Second ring frame

[0032] 11c, 21c: Side walls

[0033] 12,22: Joint end face

[0034] 13,23: Connectors

[0035] 14: First Body

[0036] 14a, 24a: Base plate

[0037] 14b, 24b: Circumferential wall

[0038] 15,25: Cable Management

[0039] 16,26: Cable trays

[0040] 2: Second panel

[0041] 24: Second Body

[0042] 3: Limiting components

[0043] 3a: First stop part

[0044] 3b: Second stop

[0045] 31, 34: Connection ends

[0046] 32,35: Free end

[0047] 33,36: Bending section

[0048] F: Series-type sector frame

[0049] T: Stator assembly

[0050] P: Fan wheel

[0051] L: Wire

[0052] O: Axis

[0053] W: Opportunity

[0054] U: Shaft tube

[0055] S: Container

[0056] R: Circumferential direction

[0057] E1: First limiting zone

[0058] E2: Second limiting zone

[0059] D: Axial spacing. Detailed Implementation

[0060] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments of this utility model are described below in detail with reference to the accompanying drawings; in addition, those symbols that are marked with the same symbols in different drawings are considered to be the same and their descriptions will be omitted.

[0061] Please refer to Figure 1 , Figure 3 As shown, it is the first embodiment of the series-connected sector frame F of the present invention, including a first sector frame 1, a second sector frame 2 and a limiting component 3, which is used to limit the conductor L of the first sector frame 1 and the conductor L of the second sector frame 2.

[0062] The first fan frame 1 and the second fan frame 2 can each be an axial-flow fan frame, and the first fan frame 1 and the second fan frame 2 are respectively used to assemble a stator assembly T and a fan wheel P (e.g., Figure 3As shown, the first fan frame 1 and the second fan frame 2 each have two opposing air vents W at a central axis O. These two air vents W can be an air inlet and an air outlet, respectively, depending on the rotation direction of each fan wheel P. This invention does not restrict the airflow direction through these two air vents W. Each stator assembly T of the first fan frame 1 and the second fan frame 2 can be electrically connected to an external power source via several wires L. These wires L can be, for example, power lines or signal transmission lines, thereby supplying power to each stator assembly T to drive the rotation of each fan wheel P, and thus guiding the airflow through the two air vents W of the first fan frame 1 and the second fan frame 2. The connection relationship and operating principle of the first fan frame 1 and the second fan frame 2 with their internal stator assemblies T and fan wheels P are readily understood by those skilled in the art and will not be elaborated upon here.

[0063] In detail, the first sector frame 1 may have a frame body 11, which has a connecting end face 12 in the axial direction. The connecting end face 12 can be used to connect the second sector frame 2. The frame body 11 can be connected to a first base 14 by a plurality of connectors 13, so that the first base 14 can be positioned at the axis O. The plurality of connectors 13 may be, for example, ribs or stator blades. It is worth noting that a first limiting area E1 can be formed between two adjacent connectors 13. The first limiting area E1 can be used to limit the plurality of conductors L (described in detail later). In this embodiment, the frame body 11 may have a first ring frame 11a and a second ring frame 11b that are axially opposite each other. The frame body 11 has a side wall 11c, which connects the first ring frame 11a and the second ring frame 11b. The mating end face 12 can be located in the first ring frame 11a, and the plurality of connectors 13 can be radially connected to the first seat body 14 by the first ring frame 11a.

[0064] The first base 14 can be used to house the stator assembly T and the fan wheel P. For example, the stator assembly T and the fan wheel P can be located within the space surrounded by the first ring frame 11a, the second ring frame 11b, and the side wall 11c. The first base 14 can have a shaft tube U, the stator assembly T can be sleeved on the outer periphery of the shaft tube U, and the rotating shaft of the fan wheel P can extend through the shaft tube U so that the stator assembly T can drive the fan wheel P to rotate.

[0065] Furthermore, the first base 14 may have a base plate 14a, and a ring wall 14b may be attached to the base plate 14a. The base plate 14a and the ring wall 14b may together form a receiving groove S, which can be used to accommodate several conductors L of the stator assembly T. Preferably, the ring wall 14b may have a cable management opening 15, which is radially positioned opposite the first limiting area E1. The several conductors L can extend from the cable management opening 15 to enter the first limiting area E1. Also, the first ring frame 11a may have a conductor groove 16, which is radially positioned opposite the cable management opening 15. In this way, the several conductors L can extend from the first ring frame 1 through the cable management opening 15 and the conductor groove 16.

[0066] The second panel 2 can have a structure substantially similar to the first panel 1. The second panel 2 can have a frame body 21, which has a connecting end face 22 in the axial direction. The connecting end face 22 can be connected to the connecting end face 12 of the first panel 1. In addition, the second panel 2 and the first panel 1 can be engaged, locked, fitted, snapped, or glued, etc., which can be adjusted by those skilled in the art according to the usage requirements. This utility model does not limit this.

[0067] The frame body 21 can be connected to a second seat 24 via several connectors 23, allowing the second seat 24 to be positioned relative to the axis O. The connectors 23 can be, for example, ribs or stator blades. A second limiting area E2 can be formed between adjacent connectors 23, which can be used to limit the movement of several conductors L. In this embodiment, the frame body 21 may have a first ring frame 21a and a second ring frame 21b axially opposed to each other. The frame body 21 has a side wall 21c connecting the first ring frame 21a and the second ring frame 21b. The mating end face 22 may be located in the first ring frame 21a, and the connectors 23 can be radially connected to the second seat 24 from the first ring frame 21a.

[0068] Furthermore, the connecting members 23 of the second fan frame 2 can be axially aligned with the connecting members 13 of the first fan frame 1, thus avoiding excessive obstruction of the airflow through the first fan frame 1 and the second fan frame 2 by the connecting members 13 and 24 in the axial direction. In addition, the second base 24 can have a shaft tube U, the stator assembly T can be sleeved on the outer periphery of the shaft tube U, and the rotating shaft of the fan wheel P can extend through the shaft tube U. Preferably, the second base 24 of the second fan frame 2 can be axially aligned with the first base 14 of the first fan frame 1. This allows the fan wheels P of the first fan frame 1 and the second fan frame 2 to rotate on the same axis, enabling the tandem fan frame F to have better airflow smoothness.

[0069] The second base 24 of the second sector frame 2 may have a base plate 24a and a ring wall 24b. The base plate 24a and the ring wall 24b can together form a receiving groove S, which can be used to receive several conductors L of the stator assembly T of the second sector frame 2. The ring wall 24b may have a wire guide opening 25, which is located in the second limiting area E2. The several conductors L of the stator assembly T of the second sector frame 2 can extend out of the wire guide opening 25 to enter the second limiting area E2. Furthermore, the first ring frame 21a may have a conductor groove 26, which is radially located in front of the wire guide opening 25. In this way, the several conductors L can extend out of the second sector frame 2 through the wire guide opening 25 and the conductor groove 26.

[0070] Please refer to Figure 3 As shown, in this embodiment, the second seat 24 of the second frame 2 can be adjacent to the first seat 14 of the first frame 1, and the cable management port 25 of the second seat 24 can be axially aligned with the cable management port 15 of the first seat 14. In this way, the several wires L extending from the cable management port 25 of the second seat 24 and the several wires L extending from the cable management port 15 of the first seat 14 can be easily gathered and organized, which can have better cable management convenience.

[0071] Please refer to Figure 1 , Figure 2 As shown, the limiting component 3 has a first stop portion 3a, which can be located in the first limiting region E1 of the first sector frame 1. The first stop portion 3a can be used to axially limit the plurality of wires L. Specifically, the first stop portion 3a can be formed to extend in a circumferential direction R relative to the axis O, that is, the first stop portion 3a extends laterally to the connector 13 in the first limiting region E1, so that the first stop portion 3a can be radially positioned against the first seat 14. In this way, the first stop portion 3a can axially limit the plurality of wires L in the first limiting region E1, so that the plurality of wires L can reliably extend radially in the first limiting region E1 (that is, extend from the first seat 14 toward the first ring frame 11a). Furthermore, the first stop portion 3a is radially positioned opposite the first seat 14, so that the plurality of wires L can be confined to a position approximately radially opposite the first seat 14, thereby allowing the plurality of wires L to be moved away from the fan wheel P.

[0072] The first stop portion 3a can be connected between the two connectors 13 in the first limiting area E1. In this embodiment, the first stop portion 3a has a connecting end 31, which is connected to one of the connectors 13 and extends in the circumferential direction R toward the adjacent connector 13. Preferably, the first stop portion 3a has a free end 32, which may have a bent section 33 that extends axially toward the second sector frame 2. In this way, the bent section 33 can confine the plurality of wires L between the connecting end 31 and the free end 32, thus preventing the plurality of wires L from coming out of the first stop portion 3a.

[0073] The limiting component 3 has a second stop portion 3b, which can be located in the second limiting region E2 of the second sector frame 2. The second stop portion 3b can be used to axially limit the plurality of wires L. Specifically, the second stop portion 3b can be formed extending in the circumferential direction R, that is, the second stop portion 3b extends laterally into the connector 23 of the second limiting region E2, thereby allowing the second stop portion 3b to be radially positioned against the second seat 24. In this way, the second stop portion 3b can axially limit the plurality of wires L in the second limiting region E2, thereby ensuring that the plurality of wires L can reliably extend radially in the second limiting region E2.

[0074] The second stop portion 3b can be connected between the two connectors 23 in the second limiting area E2. In this embodiment, the second stop portion 3b has a connecting end 34, which is connected to one of the connectors 23 and extends in the circumferential direction R toward the adjacent connector 23. Preferably, the second stop portion 3b has a free end 35, which extends in the circumferential direction R toward the adjacent connector 23. Furthermore, the free end 35 may have a bent section 36, which extends axially toward the first sector frame 1. In this way, the bent section 36 can confine the plurality of wires L between the connecting end 33 and the free end 34, thus preventing the plurality of wires L from coming out of the second stop portion 3b.

[0075] Please refer to Figure 3 , Figure 4As shown, it is worth noting that the first limiting area E1 can be axially aligned with the second limiting area E2, thereby allowing several wires L in the first limiting area E1 and the second limiting area E2 to be located between the first stop portion 3a and the second stop portion 3b. This allows the several wires L to be simultaneously limited by the first stop portion 3a and the second stop portion 3b, thus preventing the several wires L from bending axially towards the first fan frame 1 or the second fan frame 2, and thus avoiding interference with the rotation of the fan wheel P. Furthermore, the first stop portion 3a and the second stop portion 3b are radially opposite to the first base 14 and the second base 24, respectively, allowing the several wires L to be limited to positions approximately radially opposite to the first base 14 and the second base 24. This allows the several wires L to be moved away from the stator assembly T of the first fan frame 1 and the second fan frame 2 and the fan wheel P, thereby further preventing interference of the several wires L with the fan wheel P.

[0076] For example, the first stop portion 3a and the second stop portion 3b can at least partially be axially aligned (e.g. Figure 3 This can reduce the axial obstruction of the first stop portion 3a and the second stop portion 3b on the airflow passing through the first sector frame 1 and the second sector frame 2. Alternatively, the first stop portion 3a and the second stop portion 3b can be axially misaligned (e.g., Figure 4 Thus, the first stop portion 3a and the second stop portion 3b can together form a better limiting range for the plurality of wires L, thereby ensuring that the plurality of wires L can extend radially. In this embodiment, the first stop portion 3a and the second stop portion 3b may have an axial distance D, which may be greater than or equal to the diameter of one wire L. Thus, an appropriate space can be formed between the first stop portion 3a and the second stop portion 3b, so that the plurality of wires L can smoothly extend radially between the first stop portion 3a and the second stop portion 3b without bending.

[0077] In summary, the series-connected fan frame of this utility model forms a first limiting area and a second limiting area between two adjacent connecting members through the first fan frame and the second fan frame, respectively. The first stop portion of the limiting component is located in the first limiting area, and the second stop portion is located in the second limiting area. This allows the multiple wires to be axially limited by the first stop portion and the second stop portion in the first limiting area and the second limiting area, respectively. This prevents the multiple wires from axially bending towards the fan wheel and causing interference, thereby achieving the effect of smooth fan rotation.

[0078] Although the present invention has been disclosed using the above preferred embodiments, it is not intended to limit the present invention. Any modifications and alterations made by those skilled in the art to the above embodiments without departing from the spirit and scope of the present invention shall still fall within the technical scope protected by the present invention. Therefore, the protection scope of the present invention shall include all changes within the meaning and equivalent scope of the appended claims. Furthermore, when the above embodiments can be combined, the present invention includes any combination of embodiments.

Claims

1. A series-connected fan frame, characterized in that, include: A first frame has a frame body connected to a first base body by a plurality of connectors. The frame body has a first limiting area located between two adjacent connectors. A second sector frame has a frame body axially coupled to the frame body of the first sector frame. The frame body of the second sector frame is connected to a second base via a plurality of connectors. The frame body of the second sector frame has a second limiting region located between two adjacent connectors of the second sector frame. A limiting component has a first stop portion and a second stop portion, the first stop portion extending laterally between two connectors in the first limiting region, and the second stop portion extending laterally between two connectors in the second limiting region.

2. The series-connected fan frame as described in claim 1, characterized in that, The first limiting area and the second limiting area are axially aligned.

3. The series-connected fan frame as described in claim 1, characterized in that, The first seat has a base plate, a ring wall attached to the base plate, the ring wall having a cable management opening that is radially located in the first limiting area.

4. The series-connected fan frame as described in claim 3, characterized in that, The frame body of the first sector has a first ring frame and a second ring frame that are axially opposite each other. A side wall connects the first ring frame and the second ring frame. Several connectors are radially connected to the first base body by the first ring frame. The first ring frame has a wire groove that is radially located at the wire outlet.

5. The series-connected fan frame as described in claim 1, characterized in that, The second seat has a base plate and a ring wall attached to the base plate. The ring wall has a cable management opening that is radially located in the second limiting area.

6. The series-connected fan frame as described in claim 5, characterized in that, The frame body of the second sector has a first ring frame and a second ring frame that are axially opposite each other. A side wall connects the first ring frame and the second ring frame. Several connectors are radially connected to the second seat body by the first ring frame. The first ring frame has a wire groove that is radially located at the wire outlet.

7. The series-connected fan frame as described in claim 1, characterized in that, The first seat of the first sector frame is adjacent to the second seat of the second sector frame.

8. The series-connected sector frame as described in claim 1, characterized in that, The first stop has a connecting end connected to one of the connectors, and the first stop has a free end extending toward another adjacent connector. The free end has a bent section extending axially toward the direction of the second fan frame.

9. The series-connected fan frame as described in claim 1, characterized in that, The second stop has a connecting end connected to one of the connectors, and the second stop has a free end extending toward another adjacent connector. The free end has a bent section extending axially toward the direction of the first sector frame.

10. The series-connected sector frame as described in claim 1, characterized in that, The first stop portion and the second stop portion are at least partially axially aligned.

11. The series-connected sector frame as described in claim 1, characterized in that, The first stop and the second stop are axially misaligned.

12. The series-connected sector frame as described in claim 1, characterized in that, The first stop and the second stop have an axial distance between them, which is greater than or equal to the diameter of a conductor.

13. A series fan, characterized in that, include: A series-connected sector frame as described in any one of claims 1 to 12; Two stator assemblies are located in the first and second housings, respectively. The conductors of each stator assembly extend radially into the first and second limiting regions, respectively. The first and second stop portions respectively provide axial limiting for each conductor. Two fan wheels, and the two stator groups drive the two fan wheels to rotate respectively.

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