Relay coil pin, coil assembly and assembly method of coil assembly
By designing foldable relay coil pins, the problem of interference in the winding area of the coil frame is solved, the winding smoothness is improved and the compact size of the relay is achieved.
Patent Information
- Application Number
- CN202411679924.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-01-10
AI Technical Summary
When processing existing relay coil components, the coil pins need to avoid the winding area of the coil frame, resulting in the inability to meet the miniaturization requirements well.
A relay coil pin is designed, which includes a transverse lead-out section and a vertical lead-out section for a bent connection. The front section and the rear section are connected by a bent action part, allowing the structural state to be changed before and after the winding, avoiding interference with the winding operation, and Fold after winding is finished to reduce space.
The winding smoothness of the coil frame and the compactness of the relay are improved, and the miniaturization is achieved.
Smart Images
Figure CN119297037A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of relays, and in particular to a relay coil pin, a coil assembly and an assembling method of the coil assembly. Background Art
[0002] The coil assembly of the relay usually includes a coil frame, a coil winding wound on the coil frame, and two coil pins connected to the coil frame, and the starting end and the ending end of the coil winding are respectively connected to the two coil pins. When processing the coil assembly, it is usually necessary to first fix the two coil pins to the connection part at one end of the coil frame, and then wind the starting end of the coil to one of its coil pins, and then perform the winding process on the coil frame. After the winding is completed, the end of the coil is wound and fixed to the other coil pin. During the winding process, it is required that the coil winding area should not have structural interference to hinder the winding operation. Therefore, the coil pin needs to avoid the winding area of the coil frame, which results in the coil pin needing to extend outward in the length direction relative to the coil frame at the position of the connection part or extend in both directions in the width direction to avoid the winding area of the coil frame. This will cause the relay to fail to meet the miniaturization requirements to a certain extent. Summary of the invention
[0003] In view of the deficiencies of the prior art, the present invention provides a relay coil pin, which is easy and convenient to assemble with a coil frame and does not affect the winding operation of the coil frame.
[0004] To achieve the above object, the present invention is achieved through the following technical solutions: A relay coil pin comprises a pin body, the pin body comprises a lateral lead-out section and a vertical lead-out section bent and connected to the lateral lead-out section, the lateral lead-out section comprises a front section and a rear section, the front section is formed with a connecting portion for plugging and fixing with a pin fixing portion on a coil frame and a winding head portion exposed from the pin fixing portion for winding, and the rear section is configured to be able to bend and retract laterally relative to the front section.
[0005] Furthermore, a bending portion is formed at the connection between the front section and the rear section for facilitating bending of the transverse lead-out section, and the rear section is configured to be able to bend and close transversely relative to the front section at the bending portion after the coil frame is wound.
[0006] Furthermore, the bending action portion is a groove structure, and the groove structure is an arc-shaped groove.
[0007] Furthermore, the rear section of the lateral lead-out section is configured to bend 90° inwardly toward the coil frame relative to the front section at the bending action portion, and is arranged parallel to the axis of the coil frame to form a retracted state with the coil frame.
[0008] Furthermore, a winding groove is provided on the winding head.
[0009] Furthermore, the connecting portion is configured to be used for interference-fitting and fixing connection with a pin insertion hole provided in the pin fixing portion.
[0010] Furthermore, the transverse lead-out section and the vertical lead-out section are connected by a 90° vertical bend.
[0011] Based on the same inventive concept, the present invention also provides a coil assembly, including a coil frame, a coil winding wound on the coil frame and two or more relay coil pins as described above, wherein a pin fixing portion is provided on the coil frame, two pin bodies are connected to the pin fixing portion through their respective connecting portions, and the starting end and the ending end of the coil winding are respectively wound and connected to the winding heads of the two pin bodies.
[0012] Furthermore, the two pin bodies are arranged on the pin fixing portion in parallel and opposite to each other up and down.
[0013] Based on the same inventive concept, the present invention also provides a method for assembling a coil assembly, comprising the following steps: S1, first connect the connecting parts of the two relay coil pins to the corresponding positions of the pin fixing part of the coil frame, at this time, the front section and the rear section of the two relay coil pins avoid the winding area of the coil frame; S2, then winding the beginning of the coil on the winding head of one of the two relay coil pins, then winding the wire on the winding area of the coil frame to form a coil winding, and then winding the end of the coil on the winding head of the other relay coil pin; S3, finally, the rear sections of the two relay coil pins are transversely bent and gathered relative to the front sections at the bending action portion to reduce the space occupied by the relay coil pins.
[0014] Based on the same inventive concept, the present invention also provides a relay, comprising any of the relay coil pins or coil components described above.
[0015] The above technical solution has the following advantages or beneficial effects:
[0016] In the relay coil pin, coil assembly and coil assembly assembly method described in the present invention, the pin body has a first structural state before bending and a second structural state after bending. When it is assembled with the coil frame, the structural state is changed by bending the lateral lead-out section, which can change the extension direction of the pin body relative to the coil frame, so as to avoid interference with the winding operation of the coil frame due to the existence of the pin body, which is conducive to improving the winding smoothness of the coil frame. In addition, after the winding of the coil frame is completed, the pin body can be bent to form the second structural state after bending, that is, the front section and the rear section of the lateral lead-out section are bent, and the pin body is transversely bent and retracted relative to the coil frame, so that the assembly structure of the pin body and the coil frame is more compact, which is conducive to miniaturization of the relay. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a relay according to an embodiment of the present invention.
[0017] Figure 2 It is a schematic diagram of the assembly structure of the coil frame and the pin body according to an embodiment of the present invention (before bending).
[0017] Figure 3 It is a schematic diagram of the assembly structure of the coil frame and the pin body (after bending) according to an embodiment of the present invention.
[0017] Figure 4 yes Figure 3 A partial enlarged view of point A in the figure.
[0018] Description of labels:
[0019] 1. Pin body, 2. Coil frame, 3. Coil winding, 11. Horizontal lead-out section, 12. Vertical lead-out section, 21. Pin fixing part, 111. Front section, 112. Rear section, 1111. Winding head. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0022] Please refer to the attached Figure 1 To Attachment Figure 4An embodiment of the present invention provides a relay coil pin, including a pin body 1, the pin body 1 including a lateral lead-out section 11 and a vertical lead-out section 12 bent and connected to the lateral lead-out section 11, the lateral lead-out section 11 including a front section 111 and a rear section 112, the front section 111 is formed with a connection portion for plugging and fixing with a pin fixing portion 21 on a coil frame 2 and a winding head portion exposed from the pin fixing portion 21 for winding, and the rear section 112 is configured to be able to bend and retract laterally relative to the front section 111. It can be understood that in this embodiment, the pin body 1 has a first structural state before bending and a second structural state after bending. When it is assembled with the coil frame 2, the structural state is changed by bending the lateral lead-out section 11, and the extension direction of the pin body 1 relative to the coil frame 2 can be changed to avoid interfering with the winding operation of the coil frame 2 due to the existence of the pin body 1, which is conducive to improving the winding smoothness of the coil frame 2. Furthermore, after the winding of the coil frame 2 is completed, the pin body 1 can be bent to form a second structural state after bending, that is, the front section 111 and the rear section 112 of the lateral lead-out section 11 are bent, and the pin body 1 is laterally bent and contracted relative to the coil frame 2, so that the assembly structure of the pin body 1 and the coil frame 2 is more compact, which is conducive to the miniaturization of the relay.
[0023] Please refer to the attached Figure 1 To Attachment Figure 4 In one preferred embodiment, a bending action portion is formed at the connection between the front section 111 and the rear section 112 to facilitate bending of the transverse lead-out section 11 (the bending action portion is not specifically shown in the figure, and is located at the inner side of the bending part of the front section 111), and the rear section 112 is configured to be able to bend and close laterally relative to the front section 111 at the position of the bending action portion after the winding of the coil frame 2 is completed. Preferably, the bending action portion is a groove structure, and further, the groove structure is an arc-shaped groove. It can be understood that in this embodiment, by providing a bending action portion at the connection between the front section 111 and the rear section 112, on the one hand, the bending action portion is conducive to improving the bending convenience of the rear section 112 relative to the front section 111 to reduce the difficulty of the bending operation and improve the bending efficiency. On the other hand, the use of the bending action portion is also conducive to improving the accuracy of the bending position between the front section 111 and the rear section 112, which can improve the consistency of the structural parameters of the product. However, those skilled in the art should understand that in other embodiments, the specific structure of the bending portion is not limited to the specific implementation disclosed in this embodiment, and may also be a V-shaped groove or other structure.
[0024] Please refer to the attached Figure 2 , Attachment Figure 3 In one preferred embodiment, the rear section 112 of the lateral lead-out section 11 is configured to be able to bend inward 90° laterally toward the coil frame 2 relative to the front section 111 at the bending action position, and is arranged parallel to the axis of the coil frame 2 so as to form a retracted state with the coil frame 2.
[0025] Please refer to the attached Figure 2 In one preferred embodiment, a winding groove is provided on the winding head 1111. The beginning and the end of the coil wound on the coil frame 2 can be respectively wound on the corresponding winding groove of the winding head 1111, thereby improving the connection stability between the beginning and the end of the coil and the winding head 1111.
[0026] Please refer to the attached Figure 2 , Attachment Figure 3 In one preferred embodiment, the connecting portion is configured to be used for interference fit and fixed connection with the pin socket provided in the pin fixing portion 21. However, those skilled in the art should understand that in other embodiments, the connecting portion may also be fixedly connected to the pin fixing portion 21 by other fixed connection methods, and is not limited to the specific implementation methods disclosed in this embodiment, as long as the corresponding part of the lateral lead-out section 11 of the pin body 1 can be stably fixedly connected to the pin fixing portion 21.
[0027] Please refer to the attached Figure 2 To Attachment Figure 4 In one preferred embodiment, the lateral lead-out section 11 and the vertical lead-out section 12 are connected by a 90° vertical bend, so that the pin body 1 is roughly L-shaped.
[0028] Please refer to the attached Figure 1 To Attachment Figure 4 An embodiment of the present invention further provides a coil assembly, comprising a coil frame 2, a coil winding 3 wound on the coil frame 2, and two or more relay coil pins of any one of the embodiments, wherein a pin fixing portion 21 is provided on the coil frame 2, two pin bodies 1 are connected to the pin fixing portion 21 through their respective connecting portions, and the beginning and the end of the coil winding 3 are respectively wound and connected to the winding head portions 1111 of the two pin bodies 1. Preferably, the two pin bodies 1 are arranged on the pin fixing portion 21 in parallel and opposite to each other.
[0029] Please refer to the attached Figure 1 To Attachment Figure 4 An embodiment of the present invention further provides a method for assembling a coil assembly, comprising the following steps: S1, first connect the connecting parts of the two relay coil pins to the corresponding positions of the pin fixing part 21 of the coil frame 2, at this time, the front section 111 and the rear section 112 of the two relay coil pins avoid the winding area of the coil frame 2; S2, then wind the beginning of the coil on the winding head 1111 of one of the two relay coil pins, then wind the wire on the winding area of the coil frame 2 to form the coil winding 3, and then wind the end of the coil on the winding head 1111 of the other relay coil pin; S3, finally, the rear sections 112 of the two relay coil pins are transversely bent and gathered relative to the front sections 111 at the bending action positions to reduce the space occupied by the relay coil pins.
[0030] It can be understood that in this embodiment, before the coil frame 2 is wound, although the pin body 1 has been fixedly connected to the coil frame 2, its entire part avoids the winding area of the coil frame 2, so that the coil frame 2 can perform the winding operation normally, and when the winding operation of the coil frame 2 is completed, the pin body 1 can be bent at the bending action position, so that the rear section 112 of the horizontal lead-out section 11 and the vertical lead-out section 12 are synchronously bent inwardly 90° toward the direction of the coil frame 2 until the rear section 112 is parallel to the axis of the coil frame 2, so that the pin body 1 and the coil frame 2 are in a retracted state, and the assembly structure of the two is more compact, which is more conducive to the miniaturization of the relay.
[0031] Please refer to the attached Figure 1 An embodiment of the present invention also provides a relay, comprising any one of the relay coil pins or coil components implemented above.
[0032] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
Claims
1. A relay coil pin, characterized in that: The invention comprises a pin body (1), wherein the pin body (1) comprises a transverse lead-out section (11) and a vertical lead-out section (12) which is bent and connected to the transverse lead-out section (11), wherein the transverse lead-out section (11) comprises a front section (111) and a rear section (112), wherein the front section (111) is provided with a connection section (1111) for plugging and fixing with a pin fixing section (21) on a coil frame (2) and a winding section (1112) which is exposed from the pin fixing section (21) and is used for winding, and the rear section (112) is configured to be able to be bent and retracted transversely relative to the front section (111).
2. The relay coil pin according to claim 1, characterized in that: A bending action portion (113) is formed at the connection between the front section (111) and the rear section (112) for facilitating bending of the transverse lead-out section (11), and the rear section (112) is configured to be able to be transversely bent and folded relative to the front section (111) at the position of the bending action portion (113) after the winding of the coil frame (2) is completed.
3. The relay coil pin according to claim 2, characterized in that: The bending action portion (113) is a groove structure.
4. The relay coil pin according to claim 2, characterized in that: The rear section (112) of the transverse lead-out section (11) is configured to be able to bend inwards at a 90° angle in the transverse direction of the coil frame (2) relative to the front section (111) at the position of the bending action portion (113), and is arranged parallel to the axis of the coil frame (2) so as to form a retracted state with the coil frame (2).
5. The relay coil pin according to claim 1, characterized in that: A winding groove is provided on the winding head (1112).
6. The relay coil pin according to claim 1, characterized in that: The connecting portion (1111) is configured to be used for interference-fitting and fixing connection with a pin insertion hole provided in the pin fixing portion (21).
7. The relay coil pin according to claim 1, characterized in that: The transverse lead-out section (11) and the vertical lead-out section (12) are connected in a 90° vertical bend.
8. A coil assembly, characterized in that: It comprises a coil frame (2), a coil winding (3) wound on the coil frame (2) and two relay coil pins according to any one of claims 1 to 7, wherein a pin fixing portion (21) is provided on the coil frame (2), two pin bodies (1) are connected to the pin fixing portion (21) through their respective connecting portions (1111), and the starting end and the ending end of the coil winding (3) are respectively wound and connected to the winding head portions (1112) of the two pin bodies (1).
9. The coil assembly according to claim 8, characterized in that: The two pin bodies (1) are arranged on the pin fixing portion (21) in a vertically parallel manner and opposite to each other.
10. An assembly method of a coil assembly as claimed in claim 8 or 9, characterized in that: The steps include: S1, firstly connect the connection parts (1111) of the two relay coil pins to the corresponding positions of the pin fixing part (21) of the coil frame (2), and at this time, the front section (111) and the rear section (112) of the two relay coil pins avoid the winding area of the coil frame (2); S2, then winding the beginning of the coil on the winding head (1112) of one of the two relay coil pins, then winding the wire on the winding area of the coil frame (2) to form a coil winding (3), and then winding the end of the coil on the winding head (1112) of the other relay coil pin; S3, finally, the rear sections (112) of the two relay coil pins are transversely bent and gathered relative to the front sections (111) to reduce the space occupied by the relay coil pins.