Terminal bending mechanism of air volume switch

Abstract

The utility model provides a terminal bending mechanism of an air volume switch, which comprises a shell and a rotating rod, part of the structure of the rotating rod is located in the shell, a plurality of wiring terminals are further arranged in the shell, wiring pins extend from the wiring terminals, the extension direction of the wiring pins is perpendicular to the extension direction of the rotating rod, and the rotating rod is arranged in the shell. The terminal bending mechanism can overcome the defect that in the prior art, the extension direction of a rotating rod is consistent with the extension direction of a connecting terminal, so that the direction of a wire connected with a wiring terminal must be consistent with the direction of the rotating rod, and the terminal bending mechanism cannot be applied to some scenes with small spaces.

Description

Technical Field

[0001] This utility model relates to the field of air volume switch technology, specifically to a terminal bending mechanism for an air volume switch. Background Technology

[0002] An airflow switch, as a key component of a ventilation system, plays a crucial role in regulating and controlling airflow, ensuring indoor comfort, optimizing energy use, and protecting related equipment. Specifically, an airflow switch can precisely adjust the amount of air entering or exiting a space (such as a room, building, or equipment interior) according to actual needs. By opening and closing different settings, the airflow switch can flexibly respond to various ventilation requirements, ensuring that indoor airflow is neither excessive nor insufficient, thereby creating a comfortable living or working environment. The airflow switch has input and output terminals that connect to external wires, such as... Figure 6 As shown, in the prior art, the air volume switch includes a rotating rod 01 and a connecting terminal 02. The rotating rod 01 and the connecting terminal 02 extend in the same direction. Therefore, the direction of the wire connected to the terminal must also be consistent with the direction of the rotating rod 01. Therefore, it cannot be applied in some scenarios with limited space. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect that in the prior art, the extension direction of the rotating rod and the connecting terminal are consistent, so the direction of the wire connected to the terminal must also be consistent with the direction of the rotating rod, which makes it unsuitable for some small space scenarios. Thus, a terminal bending mechanism for air volume switches that can be applied to small space scenarios is provided.

[0004] Therefore, this utility model provides a terminal bending mechanism for a fan speed switch, including a housing and a rotating rod with part of its structure located inside the housing. The housing is also provided with multiple wiring terminals, each of which has a wiring pin extending from it. The extension direction of the wiring pin is perpendicular to the extension direction of the rotating rod.

[0005] Furthermore: the wiring terminals include input terminals and output terminals, and the housing may also have a gear switching structure inside. The gear switching structure includes a common plate and a ground plate connected to the output terminals and several gear switching plates connected to the input terminals. The common plate, the ground plate, and the gear switching plates are all provided with connecting plates arranged in an "L" shape between themselves and their corresponding wiring pins.

[0006] Furthermore: the gear shifting plate includes at least two gear shifting plates, and the common plate, the grounding plate, and the gear shifting plate are provided with contact plates that can contact the three. The contact plates are respectively provided with a first contact point that contacts any gear shifting plate, a second contact point that contacts the common plate, and a third contact point that contacts the grounding plate.

[0007] Furthermore: the housing includes a base and a cover plate disposed above the base. The cover plate is provided with a groove for a rotating rod to pass through. One end of the rotating rod extends through the groove to the outside, and the other end is fastened to a contact piece.

[0008] Furthermore: a fastening structure is provided between the rotating rod and the contact piece. The fastening structure includes a fastening ring disposed on one side of the contact piece or the rotating rod and a fastening groove disposed on the other side and adapted to the fastening ring. A spring is also provided between the contact piece and the rotating rod. At least two opposing elastic buckles are provided on the fastening ring. The elastic buckles are provided with guide slopes for guiding the contact piece to engage.

[0009] Furthermore: an extension ring is coaxially provided on the outside of the rotating rod, and a receiving space for accommodating the spring is provided between the inner side of the extension ring and the outer side of the rotating rod. One end of the spring abuts against the inner side of the extension ring, and the other end abuts against the contact piece. An abutting post is provided on the extension ring, and a positioning block for restricting the rotation path of the abutting post is provided on the inner side wall of the cover plate.

[0010] The technical solution of this utility model has the following advantages:

[0011] 1. The present invention provides a terminal bending mechanism for a fan speed switch, wherein the wiring pins are arranged vertically and the extension direction of the rotating rod is arranged horizontally. Therefore, when the wire is connected to the wiring pins, the connection direction of the wire can be changed, thereby better adapting to scenarios with limited horizontal installation space.

[0012] 2. The present invention provides a terminal bending mechanism for a fan speed switch. The wiring terminals include input terminals and output terminals. The input terminals are connected to three position plates, and the output terminals are connected to the common plate and the ground plate respectively. In order to enable the wiring pins to be set perpendicular to the contact terminals, an L-shaped bending connecting plate is provided between the wiring pins and the contact terminals. By setting the connecting plate, the extension direction of the wiring pins can be easily changed, thereby adapting to narrow installation scenarios. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a side view of the airflow switch;

[0015] Figure 2 A schematic diagram of the internal structure of the air volume switch;

[0016] Figure 3 This is another schematic diagram of the internal structure of the air volume switch;

[0017] Figure 4 This is a schematic diagram of the internal structure of the cover plate;

[0018] Figure 5 This is a schematic diagram of the cover plate and contact piece.

[0019] Figure 6 This is a schematic diagram of the structure of an airflow switch in the prior art.

[0020] Explanation of reference numerals in the attached figures:

[0021] 01. Rotating rod; 02. Connecting terminal;

[0022] 1. Housing; 11. Base; 12. Cover plate; 13. Groove; 2. Rotating rod; 3. Wiring terminal; 31. Input terminal; 32. Output terminal; 33. Wiring pin; 4. Common piece; 41. Grounding piece; 42. Connecting piece; 5. Several gear shifting pieces; 51. Gear piece; 6. Contact piece; 61. First contact; 62. Second contact; 63. Third contact; 7. Snap-fit ​​structure; 71. Snap-fit ​​ring; 72. Snap-fit ​​groove; 73. Elastic buckle; 74. Guide slope; 8. Extension ring; 81. Abutment post; 82. Positioning block. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Example

[0028] This embodiment provides a terminal bending mechanism for a fan speed switch, including a housing 1 and a rotating rod 2 with part of its structure located inside the housing 1. The housing 1 is also provided with multiple wiring terminals 3, and each of the multiple wiring terminals 3 has a wiring pin 33 extending from it. The extension direction of the wiring pin 33 is perpendicular to the extension direction of the rotating rod 2.

[0029] The specific improvements mentioned above are as follows: Figure 1 and Figure 6 As shown, compared with the prior art, the terminal block 33 is set in the vertical direction, while the extension direction of the rotating rod 2 is set in the horizontal direction. Therefore, when the wire is connected to the terminal block 33, the connection direction of the wire can be changed, which can better adapt to the scenario where the horizontal installation space is small.

[0030] Based on the above embodiments: the terminal block 3 includes an input terminal 31 and an output terminal 32. The housing 1 may also have a gear switching structure inside. The gear switching structure includes a common piece 4 and a ground piece 41 connected to the output terminal 32, and a plurality of gear switching pieces 5 connected to the input terminal 31. The common piece 4, the ground piece 41, and the gear switching pieces 5 are all provided with connecting pieces 42 arranged in an "L" shape between them and their corresponding terminals 33.

[0031] The specific improvements mentioned above are as follows: Figure 2 As shown, the terminal block 3 includes an input terminal 31 and an output terminal 32. The input terminal 31 is connected to three position plates 51 (the three position plates 51 correspond to position one, position two and position three respectively). The output terminal 32 is connected to the common plate 4 and the grounding plate 41 respectively. In order to enable the terminal pin 33 to be set perpendicular to the contact terminal, a connecting plate 42 with an "L" shaped bend is provided between the terminal pin 33 and the contact terminal. By setting the connecting plate 42, the extension direction of the terminal pin 33 can be easily changed, thereby adapting to narrow installation scenarios.

[0032] Based on the above embodiments: the gear shifting plate includes at least two gear shifting plates 51, and the common plate 4, the grounding plate 41 and the gear shifting plate are provided with contact plates 6 that can contact the three. The contact plates 6 are respectively provided with a first contact point 61 that contacts any gear shifting plate 51, a second contact point 62 that contacts the common plate 4 and a third contact point 63 that contacts the grounding plate 41.

[0033] The specific improvements mentioned above are as follows: Figure 2 and Figure 3 As shown, the gear shifting piece includes three gear shift pieces 51 (corresponding to gear 1, gear 2, and gear 3 respectively). The contact piece 6 has three contacts. The second contact 62 is always in contact with the common piece 4, the third contact 63 is always in contact with the grounding piece 41, and the first contact 61 is in contact with different gear shift pieces 51 at different times, thereby realizing the gear shifting of the switch from gear 1 to gear 3. Furthermore, arc extinguishing grooves are provided between the gear shift pieces 51 of gear 1, gear 2, and gear 3. When shifting gears, an electric arc will be generated, and the arc extinguishing grooves can effectively extinguish the arc.

[0034] Based on the above embodiments: the housing 1 includes a base 11 and a cover plate 12 disposed above the base 11. The cover plate 12 is provided with a groove 13 for the rotating rod 2 to pass through. One end of the rotating rod 2 passes through the groove 13 and extends to the outside, and the other end is fastened to the contact piece 6.

[0035] The specific improvements mentioned above are as follows: Figure 5 As shown, the housing 1 includes a base 11 and a cover plate 12 disposed on the base 11. The base 11 and the cover plate 12 are connected by a snap-fit ​​method. To facilitate the upper end of the rotating rod 2 passing through the cover plate 12, a groove 13 is provided on the cover plate 12. The other end of the rotating rod 2 is connected to the contact piece 6. The connection method can be welding, snap-fit, or snap-fit. The first contact 61, the second contact 62, and the third contact 63 are all disposed on the side of the contact piece 6 opposite to the gear switching structure.

[0036] Based on the above embodiments: a fastening structure 7 is provided between the rotating rod 2 and the contact piece 6. The fastening structure 7 includes a fastening ring 71 disposed on one side of the contact piece 6 or the rotating rod 2 and a fastening groove 72 disposed on the other side and adapted to the fastening ring 71. A spring is also provided between the contact piece 6 and the rotating rod 2. At least two opposing elastic buckles 73 are provided on the fastening ring 71. The elastic buckles 73 are provided with guide slopes 74 for guiding the contact piece 6 to engage.

[0037] The specific improvements mentioned above are as follows: Figure 4 As shown, a fastening structure 7 is provided between the rotating rod 2 and the contact piece 6 for convenient and quick connection. The fastening structure 7 includes a fastening ring 71 on the rotating rod 2 and a fastening groove 72 on the contact piece 6. When installing the contact piece 6, the fastening groove 72 on the contact piece 6 is pressed against the fastening ring 71, and then the contact groove is pressed by hand. The guide slope 74 will guide the elastic buckle 73 to deform from both sides to the middle, so that the fastening ring 71 is inserted into the fastening ring 71, thereby quickly completing the fastening of the rotating rod 2 and the contact piece 6.

[0038] Based on the above embodiments: an extension ring 8 is coaxially provided on the outside of the rotating rod 2, and a receiving space for accommodating the spring is provided between the inner side of the extension ring 8 and the outer side of the rotating rod 2. One end of the spring abuts against the inner side of the extension ring 8, and the other end abuts against the contact piece 6. An abutting post 81 is provided on the extension ring 8, and a positioning block 82 for restricting the rotation path of the abutting post 81 is provided on the inner side wall of the cover plate 12.

[0039] The specific improvements mentioned above are as follows: Figure 5 As shown, an extension ring 8 is coaxially arranged on the outside of the rotating rod 2. To ensure that the third contact 63 can always only contact the three gear plates 51, a positioning block 82 is provided on the inner side wall of the cover plate 12 to limit the rotation path of the abutment post 81. When switching gears, the rotating rod 2 will rotate. When the air volume switch is in the first gear, that is, when the third contact 63 is in contact with the first gear plate 51, the positioning block 82 is in contact with the abutment post 81 on one side. When the third contact 63 is in contact with the third gear plate 51, the positioning block 82 is in contact with the abutment post 81 on the other side. Therefore, by setting the positioning block 82 and the abutment post 81, the effect of the third contact 63 always switching between the three gear plates 51 can be achieved.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A terminal bending mechanism for an airflow switch, characterized in that: Includes a housing (1) and a rotating rod (2) with part of its structure located inside the housing (1). The housing (1) is also provided with multiple terminals (3), and each terminal (3) has a connecting pin (33) extending from it. The extending direction of the connecting pin (33) is perpendicular to the extending direction of the rotating rod (2).

2. The terminal bending mechanism of the airflow switch according to claim 1, characterized in that: The terminal block (3) includes an input terminal (31) and an output terminal (32). The housing (1) may also have a gear switching structure inside. The gear switching structure includes a common piece (4) and a ground piece (41) connected to the output terminal (32) and several gear switching pieces (5) connected to the input terminal (31). The common piece (4), the ground piece (41) and the gear switching pieces (5) are all connected to their corresponding terminals (33) with a connecting piece (42) arranged in an "L" shape.

3. The terminal bending mechanism of the air volume switch according to claim 2, characterized in that: The gear shifting plate includes at least two gear shifting plates (51). The common plate (4), the grounding plate (41), and the gear shifting plate are provided with contact plates (6) that can contact the three. The contact plates (6) are respectively provided with a first contact point (61) that contacts any gear shifting plate (51), a second contact point (62) that contacts the common plate (4), and a third contact point (63) that contacts the grounding plate (41).

4. The terminal bending mechanism of the airflow switch according to claim 3, characterized in that: The housing (1) includes a base (11) and a cover plate (12) disposed above the base (11). The cover plate (12) is provided with a groove (13) for the rotating rod (2) to pass through. One end of the rotating rod (2) passes through the groove (13) and extends to the outside, while the other end is fastened to the contact piece (6).

5. The terminal bending mechanism of the airflow switch according to claim 4, characterized in that: A fastening structure (7) is provided between the rotating rod (2) and the contact piece (6). The fastening structure (7) includes a fastening ring (71) provided on one side of the contact piece (6) or the rotating rod (2) and a fastening groove (72) provided on the other side and adapted to the fastening ring (71). A spring is also provided between the contact piece (6) and the rotating rod (2). At least two opposing elastic buckles (73) are provided on the fastening ring (71). The elastic buckles (73) are provided with a guide slope (74) for guiding the contact piece (6) to engage.

6. The terminal bending mechanism of the air volume switch according to claim 5, characterized in that: An extension ring (8) is coaxially arranged on the outside of the rotating rod (2). A receiving space for accommodating the spring is provided between the inner side of the extension ring (8) and the outer side of the rotating rod (2). One end of the spring abuts against the inner side of the extension ring (8) and the other end abuts against the contact piece (6). An abutting post (81) is provided on the extension ring (8). A positioning block (82) for limiting the rotation path of the abutting post (81) is provided on the inner side wall of the cover plate (12).

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