CN212209361U - Coil rack, electromagnet device with coil rack and electromagnetic relay - Google Patents
Coil rack, electromagnet device with coil rack and electromagnetic relay Download PDFInfo
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- CN212209361U CN212209361U CN202020342634.6U CN202020342634U CN212209361U CN 212209361 U CN212209361 U CN 212209361U CN 202020342634 U CN202020342634 U CN 202020342634U CN 212209361 U CN212209361 U CN 212209361U
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Abstract
The utility model relates to a coil former and have electromagnet device and electromagnetic relay of this coil former. The bobbin (22) includes: a main body (221) having a cylindrical shape; and two flange portions (222) provided at both ends of the main body portion (221) in the axial direction, wherein the flange portions (222) are provided with at least two 1 st terminal holes (225) and at least two 2 nd terminal holes (226), and the 1 st terminal holes (225) and the 2 nd terminal holes (226) are different in the axial direction from each other. When the type of the coil rack is changed, an operator only needs to extract the coil terminal (261) inserted into one of the 1 st terminal hole (225) and the 2 nd terminal hole (226) and then insert the coil terminal into the other, and the type of the coil rack can be changed without changing the coil rack, so that the coil rack is excellent in universality.
Description
Technical Field
The utility model relates to a coil former and have electromagnet device and electromagnetic relay of this coil former.
Background
There is known an electromagnetic relay that is opened and closed in response to input of an electric signal. Generally, an electromagnetic relay includes a fixed contact portion, a movable contact portion contactable with the fixed contact portion, and an electromagnet device for operating the movable contact portion. Further, the electromagnet device includes an armature that performs a rotational movement with an end of the yoke as a fulcrum, and the armature is mounted to be urged in a predetermined direction by, for example, a hinge spring or the like.
Generally, an electromagnetic relay includes a coil. For example, the movable contact portion is brought into contact with the fixed contact portion by energizing the coil, and the movable contact portion is separated from the fixed contact portion by not energizing the coil.
SUMMERY OF THE UTILITY MODEL
Problem to be solved by utility model
The coil is usually wound around a body portion of the bobbin, and a winding end portion of the coil is connected to other components via a coil terminal provided on the bobbin.
In a conventional bobbin, a set of terminal holes through which coil terminals are inserted are provided in one direction. Solder is typically used to secure the windings to the coil terminals, in which case dip soldering is most often used. Specifically, for example, the coil terminal is inserted into a terminal hole formed in the bobbin, the coil protruding end is wound around the side of the coil terminal close to the coil, and then the side of the coil terminal around which the coil protruding end is wound is bent and immersed in solder, thereby fixing the coil protruding end and the coil terminal together.
However, the conventional bobbin still has room for improvement in versatility.
For example, conventional bobbins cannot be commonly used for a vertical bobbin (the direction in which the coil terminals are extended is parallel to the axial direction of the bobbin) and a horizontal bobbin (the direction in which the coil terminals are extended is perpendicular to the axial direction of the bobbin).
Specifically, in the case where the vertical bobbin is to be applied to the horizontal bobbin, there are the following problems. That is, if the side of the coil terminal on which the coil protruding end is not wound is bent in advance, solder may adhere to the side of the coil terminal on which the coil protruding end is not wound during the dip soldering. On the other hand, if bending is performed after assembly and welding, it is difficult to ensure dimensional accuracy, and mass productivity is reduced. Further, the side of the coil terminal on which the coil protruding end is not wound usually protrudes to the outside, and therefore it is necessary to ensure dimensional accuracy.
The same problem occurs when the horizontal bobbin is applied to the vertical bobbin.
Therefore, an object of the present invention is to provide a coil bobbin that can be used in general, and an electromagnet device and an electromagnetic relay having the same.
Means for solving the problems
The utility model provides a coil former, its characterized in that, this coil former includes: a main body part having a cylindrical shape; and two flange portions respectively provided at both axial ends of the main body portion, the flange portions being provided with at least two 1 st terminal holes and at least two 2 nd terminal holes, the 1 st terminal holes and the 2 nd terminal holes being different in axial direction from each other.
Preferably, an axial direction of the 1 st terminal hole is parallel to an axial direction of the body portion, and an axial direction of the 2 nd terminal hole is perpendicular to the axial direction of the body portion.
Preferably, the 1 st terminal hole and the 2 nd terminal hole are provided in a flange portion at the same axial end of the body portion.
Preferably, the 1 st terminal hole is provided in a flange portion at one axial end of the body portion, and the 2 nd terminal hole is provided in a flange portion at the other axial end of the body portion.
Preferably, the 1 st terminal hole is provided on one side of the main body in a radial direction, and the 2 nd terminal hole is provided on the other side of the main body in the radial direction.
Preferably, the bobbin includes three 1 st terminal holes and three 2 nd terminal holes.
Preferably, the bobbin includes four 1 st terminal holes and four 2 nd terminal holes.
Preferably, a recessed portion is provided on a surface of the flange portion facing the main body portion, the recessed portion being recessed toward a side opposite to the main body portion, and the 1 st terminal hole is provided on a bottom surface of the recessed portion.
The utility model provides an electromagnet device, its characterized in that, it includes the above the coil former with convolute in the coil former the coil of main part.
The utility model provides an electromagnetic relay, its characterized in that, it includes above electromagnet device, fixed contact and according to the circular telegram condition of coil and with the movable contact of fixed contact or separation.
Effect of the utility model
According to the utility model discloses, when the type of change coil former, the operating personnel only need will insert in the coil terminal of one in 1 st terminal hole and 2 nd terminal hole extract then insert another person can, need not to change the coil former and just can realize the change of coil former type, the commonality is excellent.
Drawings
Fig. 1 is a perspective view showing an electromagnet device using a bobbin according to an embodiment of the present invention as a horizontal bobbin.
Fig. 2 is a perspective view showing a bobbin used in fig. 1.
Fig. 3 is a perspective view showing an electromagnet device using a bobbin according to an embodiment of the present invention as a vertical bobbin.
Fig. 4 is a perspective view showing a modification of the bobbin of the present invention.
Fig. 5 is a perspective view showing another modification of the bobbin of the present invention.
Description of the reference numerals
2. An electromagnet device; 21. a coil; 22. 22', 22 ", coil former; 221. a main body portion; 222. a flange portion; 224. a through hole; 23. an iron core; 24. a yoke; 261. a coil terminal; 225. 1 st terminal hole; 226. a 2 nd terminal hole; 227. a recessed portion; 228. a protrusion.
Detailed Description
Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
As shown in fig. 1, the electromagnet device 2 includes a coil 21, a bobbin 22, an iron core 23, a yoke 24, and a pair of coil terminals 261.
When the electromagnet device 2 is mounted on an electromagnetic relay (not shown), when the coil 21 is energized, the movable contact moves into contact with the fixed contact by the action of the magnetic field, and when the coil 21 is cut off, the movable contact returns to the original position and separates from the fixed contact.
As shown in fig. 2, the bobbin 22 has a body portion 221 and a pair of flange portions 222. The body 221 is provided with a through hole 224 in the axial direction. That is, the body 221 is formed in a hollow cylindrical shape, and may be in various cylindrical shapes such as an elliptical cylindrical shape and a square cylindrical shape. The flange portions 222 are formed in a substantially plate shape, for example, and are formed at both ends of the body portion 221 in the axial direction. The body portion 221 and the flange portion 222 may be integrally formed by an insulating material such as resin. As shown in fig. 1, the coil 21 is wound around the body 221.
As shown in fig. 1, the coil terminals 261 are each formed in a long shape by a conductive material such as copper. The coil terminals 261 are wound with protruding ends of the coils 21, respectively, and the protruding ends and the coil terminals 261 are fixed together by solder or the like.
As shown in fig. 2, two 1 st terminal holes 225 are formed in one side of the flange portion 222 at one end in the axial direction of the body portion 221 in the radial direction, and two 2 nd terminal holes 226 are formed in the other side of the flange portion 222 at one end in the axial direction in the radial direction. For example, in fig. 2, two 1 st terminal holes 225 are formed on the upper side of the flange portion 222, and two 2 nd terminal holes 226 are formed on the lower side of the flange portion 222. The 1 st terminal hole 225 and the 2 nd terminal hole 226 are different from each other in the axial direction. For example, the axial direction of the 1 st terminal hole 225 is parallel to the axial direction of the through hole 224, and the axial direction of the 2 nd terminal hole 226 is perpendicular to the axial direction of the through hole 224.
As shown in fig. 1 to 3, a recessed portion 227 is provided on a surface of the flange portion 222 facing the main body portion 221 at one end in the axial direction, the recessed portion 227 is recessed toward a side opposite to the side where the main body portion 221 is located, and a 1 st terminal hole 225 is provided on a bottom surface of the recessed portion 227.
The winding process of the coil is generally performed by the following processes: bending the pair of coil terminals 261 at right angles; one end of the coil winding is attached to a coil terminal 261; winding a coil around the bobbin; mounting the other end of the coil winding to the other coil terminal; the pair of coil terminals 261 are then restored to their original shape (substantially linear shape).
In the case where the bobbin is used as a vertical bobbin as shown in fig. 3, if the recess 227 is not provided, the coil winding touches the coil terminal when the coil winding is wound around the bobbin, and the bent coil terminal 261 interferes with the winding of the coil winding. This interference can be eliminated by providing the recess 227. On the other hand, in the case where the bobbin is used as a horizontal bobbin as shown in fig. 1, since the coil terminal is not touched when winding the coil wire, the recess may not be provided at the position where the 2 nd terminal hole 226 is provided.
Two projecting portions are provided on one side in the radial direction of the flange portion 222 at one end in the axial direction, and for example, as shown in fig. 1 to 2, two projecting portions 228 are provided on the lower side of the flange portion 222 at one end in the axial direction, and the projecting portions 228 project from the flange portion 222 at one end in the axial direction to the side opposite to the side where the body portion 221 is provided. The 2 nd terminal hole 226 is provided in the protrusion 228. By providing the projection 228, the 2 nd terminal hole 226 can be easily formed.
As shown in fig. 1, in the case of using the bobbin 22 as a horizontal type bobbin, the pair of coil terminals 261 are respectively passed through the 2 nd terminal holes 226, while as shown in fig. 3, in the case of using the bobbin as a vertical type bobbin, the pair of coil terminals 261 are respectively passed through the 1 st terminal holes 225.
Therefore, when the horizontal bobbin is changed to the vertical bobbin, the worker can insert the coil terminal 261 into the 1 st terminal hole 225 without inserting the 2 nd terminal hole 226. Thus, the change from the horizontal bobbin to the vertical bobbin can be realized using one bobbin, and the change from the horizontal bobbin to the vertical bobbin can be realized without replacing the bobbin.
Similarly, when the vertical bobbin is changed to the horizontal bobbin, the worker can insert the coil terminal 261 into the 2 nd terminal hole 226 without inserting the 1 st terminal hole 225. Thus, the change from the vertical bobbin to the horizontal bobbin can be realized using one bobbin, and the change from the vertical bobbin to the horizontal bobbin can be realized without replacing the bobbin.
Further, when the bobbin type is to be changed, the worker can insert the coil terminal 261 into one of the 1 st terminal hole 225 and the 2 nd terminal hole 226 corresponding to the desired bobbin type without inserting the other. Thus, the type of bobbin can be changed using one bobbin, and there is no need to change the type of coil by bending the side of coil terminal 261 inserted into 2 nd terminal hole 226 or 1 st terminal hole 225 on which the coil protruding end is not wound, so that dimensional accuracy can be ensured.
The specific arrangement of the 1 st terminal hole 225 and the 2 nd terminal hole 226 is not limited to the examples shown in fig. 1 to 3, and various suitable modifications may be made.
For example, in fig. 1 to 3, the 1 st terminal hole 225 and the 2 nd terminal hole 226 are both provided in the flange portion 222 at one end in the axial direction, but the 1 st terminal hole 225 and the 2 nd terminal hole 226 may be both provided in the flange portion 222 at the other end in the axial direction.
In fig. 1 to 3, the 1 st terminal hole 225 is provided above the flange portion 222 at one end in the axial direction, and the 2 nd terminal hole 226 is provided below the flange portion 222 at one end in the axial direction, but the positions of the 1 st terminal hole 225 and the 2 nd terminal hole 226 may be reversed, that is, the 1 st terminal hole 225 is provided below the flange portion 222 at one end in the axial direction, and the 2 nd terminal hole 226 is provided above the flange portion 222 at one end in the axial direction.
Note that the 1 st terminal hole 225 and the 2 nd terminal hole 226 may not be provided in the same flange portion. For example, the 1 st terminal hole 225 may be provided in the flange portion at one end in the axial direction, and the 2 nd terminal hole 226 may be provided in the flange portion at the other end in the axial direction. Alternatively, the 1 st terminal hole 225 may be provided in the flange portion at the other end in the axial direction, and the 2 nd terminal hole 226 may be provided in the flange portion at one end in the axial direction.
In fig. 1 to 3, two 1 st terminal holes 225 and two 2 nd terminal holes 226 are provided for a total of four terminal holes. However, the present invention is not limited to this, and four or more terminal holes may be provided. For example, as shown in fig. 4, the bobbin 22' may be provided with three 1 st terminal holes and three 2 nd terminal holes for a total of six terminal holes. As shown in fig. 5, the bobbin 22 "may be provided with four 1 st and four 2 nd terminal holes for a total of eight terminal holes.
Thus, the bobbin can be commonly used not only for the vertical type bobbin and the horizontal type bobbin but also for various winding types of coils having different numbers of protruding ends, for example, a single turn coil having two protruding ends, a serial coil having three protruding ends, a double turn coil having four protruding ends, and the like.
The electromagnet device 2 can be applied to various electromagnetic relays by using the bobbin.
Industrial applicability
The utility model discloses can provide a coil former that the commonality is excellent and have electromagnet device and electromagnetic relay of this coil former.
Claims (10)
1. A coil former (22) characterized in that,
the bobbin (22) includes:
a main body (221) having a cylindrical shape; and
two flange sections (222) provided at both axial ends of the body section (221),
at least two 1 st terminal holes (225) and at least two 2 nd terminal holes (226) are provided in the flange portion (222),
the 1 st terminal hole (225) and the 2 nd terminal hole (226) are different from each other in axial direction.
2. Coil former according to claim 1,
the axial direction of the 1 st terminal hole (225) is parallel to the axial direction of the main body part (221),
the axial direction of the 2 nd terminal hole (226) is perpendicular to the axial direction of the main body (221).
3. Coil former according to claim 1,
the 1 st terminal hole (225) and the 2 nd terminal hole (226) are provided in a flange portion (222) at the same axial end of the body portion (221).
4. Coil former according to claim 1,
the 1 st terminal hole (225) is provided in a flange portion (222) at one axial end of the body portion (221), and the 2 nd terminal hole (226) is provided in a flange portion (222) at the other axial end of the body portion (221).
5. A coil former according to claim 3 or 4,
the 1 st terminal hole (225) is provided on one side of the body portion (221) in the radial direction, and the 2 nd terminal hole (226) is provided on the other side of the body portion (221) in the radial direction.
6. Coil former according to one of claims 1 to 4,
the bobbin is provided with three 1 st terminal holes (225) and three 2 nd terminal holes (226).
7. Coil former according to one of claims 1 to 4,
the bobbin is provided with four 1 st terminal holes (225) and four 2 nd terminal holes (226).
8. Coil former according to one of claims 1 to 4,
a recessed part (227) is provided on the surface of the flange part (222) facing the main body part (221), the recessed part (227) is recessed toward the side opposite to the side where the main body part (221) is located, and the 1 st terminal hole (225) is provided on the bottom surface of the recessed part (227).
9. An electromagnet device, which is characterized in that,
which comprises the bobbin of any one of claims 1 to 8 and a coil wound around the body portion of the bobbin.
10. An electromagnetic relay is characterized in that the electromagnetic relay is provided with a coil,
comprising the electromagnet device according to claim 9, a fixed contact, and a movable contact that is brought into contact with or separated from the fixed contact in accordance with the energization of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342634.6U CN212209361U (en) | 2020-03-18 | 2020-03-18 | Coil rack, electromagnet device with coil rack and electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342634.6U CN212209361U (en) | 2020-03-18 | 2020-03-18 | Coil rack, electromagnet device with coil rack and electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212209361U true CN212209361U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020342634.6U Active CN212209361U (en) | 2020-03-18 | 2020-03-18 | Coil rack, electromagnet device with coil rack and electromagnetic relay |
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| CN (1) | CN212209361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611577A (en) * | 2021-10-09 | 2021-11-05 | 深圳市鑫道为科技有限公司 | Electromagnetic relay based on plug-in mode and capable of realizing replaceable coil structure |
-
2020
- 2020-03-18 CN CN202020342634.6U patent/CN212209361U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611577A (en) * | 2021-10-09 | 2021-11-05 | 深圳市鑫道为科技有限公司 | Electromagnetic relay based on plug-in mode and capable of realizing replaceable coil structure |
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