A coil frame, coil and magnetic latching relay convenient for automatic winding
By designing a coil frame that facilitates automatic winding, the first wire part and the hanging wire part are used instead of the traditional bridge terminals, the problem of difficult and complicated processes in the prior art is solved, and an efficient and automated winding process is achieved.
Patent Information
- Application Number
- CN202010711072.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-07-22
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2040-07-22
AI Technical Summary
The coil frames of existing magnetic holding relays are difficult to achieve automated winding during the automated winding process. Moreover, due to the large height difference between the bridge terminal position and the terminal position, it is necessary to manually wrap and use a wire crimping mechanism to handle it, which is complicated.
A coil frame is designed to facilitate automatic winding, a first wire part is used instead of the bridge terminal, and a wire hanging part is provided on the first flange part, and an inverted boss and wire groove are used to guide the enameled wire to reduce its height and avoid wire crimping.
Automatic winding is realized, reducing costs, avoiding disconnection, improving winding efficiency, simplifying processes, and reducing manual assistance needs.
Smart Images
Figure CN112038180B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of relays, in particular to a coil frame and a coil and a magnetic latching relay that are convenient for automatic winding. Background Art
[0002] The coil frame of the magnetic latching relay includes three flange parts and two winding parts. The three flange parts are distributed in sequence along the length direction of the coil frame, and each winding part is respectively arranged between two adjacent flange parts. Since several coil terminals of the magnetic latching relay are located on the same flange part, it is easy to cause the beginning and end wires of the enameled wire to overlap together. When the beginning and end wires are overlapped together, it is easy to form a voltage difference, causing the coil to short-circuit, thereby causing the relay function to lose. In order to solve the above problems, some bridge terminals are set on the middle flange part, so that the end wire of the enameled wire is connected to the end terminal after being wound on the bridge terminal, so that the beginning wire and the end wire of the enameled wire are separated in space. However, this method is not convenient for automatic winding. This is because it is currently impossible to use an automated winding method to make the end wire of the enameled wire wind on the bridge terminal, and only a manual winding method can be used. In addition, there is a large height difference between the bridge terminal and the end terminal. When the end wire of the enameled wire is led from the bridge terminal to the end terminal, a wire pressing mechanism must be used to press the end wire portion between the bridge terminal and the end terminal to reduce its height and avoid interference with the base of the relay. However, using a wire pressing mechanism for wire pressing is not only a cumbersome process, but also requires manual assistance. Summary of the invention
[0003] The present invention aims at the technical problems existing in the prior art and provides a coil frame, a coil and a magnetic latching relay which are convenient for automatic winding.
[0004] The technical solution adopted by the present invention to solve its technical problems is: a coil frame that is convenient for automated winding, comprising a first flange portion, a second flange portion, a third flange portion, a first winding portion and a second winding portion, the first flange portion, the second flange portion and the third flange portion are distributed in sequence along the length direction of the coil frame, the first winding portion is arranged between the first flange portion and the second flange portion, and the second winding portion is arranged between the second flange portion and the third flange portion; the first flange portion is provided with a plurality of terminal holes, the plurality of terminal holes include a first terminal hole for plugging in a starting terminal and a second terminal hole for plugging in a terminal terminal; the first flange portion is provided with a wire hanging portion, the bottom end of the wire hanging portion is lower than the top end of the first flange portion, and the second flange portion is provided with a first wire portion for leading the enameled wire from the second winding portion to the wire hanging portion.
[0005] Furthermore, the first flange is provided with a groove, which is located on the inner side of the second terminal hole and passes through both sides of the first flange in the thickness direction; the wire hanging part is located on one side of the groove close to the second terminal hole.
[0006] Furthermore, the wire hanging portion is an inverted hanging boss, and the bottom end of the inverted hanging boss is higher than the bottom end of the groove wall where it is located.
[0007] Furthermore, the bottom surface of the inverted boss is an inclined surface, the end of the inclined surface connected to the groove wall where the inverted boss is located is the high end, and the other end of the inclined surface away from the groove wall where the inverted boss is located is the low end; an enameled wire introduction port that is wide at the top and narrow at the bottom is formed between the inverted boss and the groove wall on the other side of the groove.
[0008] Furthermore, the first wire portion is a wire groove, and one end of the wire groove close to the second winding portion is open. The bottom surface of the wire groove is an inclined surface, the lower end of the inclined surface is close to the second winding portion and is chamfered, and the high end of the inclined surface is close to the first winding portion.
[0009] Furthermore, a boss extending upward is provided on the bottom surface of the wire trough, and one end of the wire trough close to the outer side of the second flange portion is open, and the boss is located at the end of the wire trough.
[0010] Furthermore, a ridge extending along the width direction of the coil frame is provided at one end of the wire groove close to the first winding part, and the top of the ridge is higher than the height of the enameled wire after winding on the first winding part; the ridge and the high end of the groove bottom surface are in a circular arc transition.
[0011] Furthermore, the plurality of terminal holes also include a third terminal hole for plugging in a common terminal, and the third terminal hole is located between the first terminal hole and the second terminal hole.
[0012] Furthermore, the first flange portion is provided with a plurality of air holes, and the plurality of terminal holes are respectively connected to at least one of the air holes.
[0013] Furthermore, the plurality of terminal holes correspond to the corresponding air holes in upper and lower directions respectively, and the aperture of the air holes is smaller than the aperture of the terminal holes.
[0014] Furthermore, the second flange portion is provided with a second wire portion for guiding the enameled wire from the first winding portion to the second winding portion, and the second wire portion is an inclined retaining wall; the first flange portion is provided with a first wire passing notch and a second wire passing notch on one side facing the first winding portion, and the first wire passing notch and the second wire passing notch are located on two opposite sides of the first winding portion; the second flange portion is provided with a third wire passing notch corresponding to the second wire portion on one side facing the second winding portion; the second flange portion is provided with a magnetic steel slot, and the magnetic steel slot is connected to the iron core mounting hole passing through the first flange portion, the second flange portion, the third flange portion, the first winding portion and the second winding portion; a limiting boss is provided on both sides of the magnetic steel slot, and an arc-shaped notch cooperating with the rotating shaft of the armature is provided on the two limiting bosses.
[0015] The present invention further provides a coil, comprising an enameled wire, a plurality of terminals, and a coil frame as described in the present invention that is convenient for automated winding, wherein each terminal is respectively plugged into a corresponding terminal hole, and the enameled wire starts from the terminal plugged into the first terminal hole, is led from the wire trough to the wire hanging part after being wound, and is connected to the terminal plugged into the second terminal hole after being hung on the wire hanging part.
[0016] The present invention further provides a magnetic latching relay, comprising the coil as described above in the present invention.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present invention adopts the first conductor part to replace the bridging terminal, thereby avoiding manual winding of the enameled wire, reducing costs and avoiding wire breakage. At the same time, the present invention is provided with a wire hanging part on the first flange part, and the bottom end of the wire hanging part is lower than the top end of the first flange part. The wire hanging part is used to hang the wire, thereby reducing the height of the end wire part of the enameled wire located between the first flange part and the second flange part, thereby avoiding the need for a wire pressing mechanism to perform wire pressing treatment on the end wire part. Therefore, the coil frame of the present invention is convenient for realizing automatic winding and greatly improves the winding efficiency.
[0019] 2. The present invention further provides the groove, and the wire hanging part is located on one side of the groove wall close to the second terminal hole, which not only does not affect the automatic wire hanging, but also can avoid the wire hanging part being located outside the first flange part and interfering with the base of the relay.
[0020] 3. The wire hanging part is preferably an inverted hanging boss, so that its structure is very simple. In particular, the bottom surface of the inverted hanging boss is an inclined surface, the end of the inclined surface connected to the groove wall where the inverted hanging boss is located is the high end, and the other end of the inclined surface away from the groove wall where the inverted hanging boss is located is the low end, which is conducive to the enameled wire being tilted toward the side where the second terminal hole is located after being hung on the inverted hanging boss, and preventing the enameled wire from falling off the inverted hanging boss; the enameled wire introduction port is convenient for introducing the enameled wire and hanging it upside down at the bottom of the inverted hanging boss.
[0021] 4. The first conductor portion is a conductor groove, and the bottom surface of the conductor groove is an inclined surface, which is convenient for guiding the enameled wire and reducing the tension of the enameled wire, making the enameled wire less likely to break.
[0022] 5. The setting of the protruding column can not only prevent the enameled wire from escaping from the wire groove, but also serve as a winding and fixing point for the enameled wire when necessary.
[0023] 6. The provision of the vent holes allows the air in the terminal hole that expands due to the heat to flow freely to the outside of the terminal hole when each terminal is tinned and heated, thereby preventing the air from expanding in the terminal hole and affecting the initial insertion position of the terminal, thereby causing problems such as terminal skewness and change in terminal length.
[0024] 6. Each of the terminal holes corresponds to the corresponding vent holes up and down, and the diameter of the vent holes is smaller than that of the terminal holes, so that the vent holes are easy to form and will not cause the corresponding terminals to fall out.
[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the coil frame, coil and magnetic latching relay that facilitate automatic winding of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 The structure of the coil frame of the present invention is schematically shown in FIG. Figure 1 ;
[0027] Figure 2 The structure of the coil frame of the present invention is schematically shown in FIG. Figure 2 ;
[0028] Figure 3 The structure of the coil frame of the present invention is schematically shown in FIG. Figure 3 ;
[0029] Figure 4 is a side view of the coil former of the present invention;
[0030] Figure 5 is a front view of the coil frame of the present invention;
[0031] Figure 6 The coil frame of the present invention is wound in a single coil winding mode. Figure 1 ;
[0032] Figure 7 The coil frame of the present invention is wound in a single coil winding mode. Figure 2 ;
[0033] Figure 8 The coil frame of the present invention is wound in a single coil winding mode. Figure 3 ;
[0034] Fig. 9 The coil frame of the present invention is wound in a double coil winding mode. Figure 1 ;
[0035] Fig.10 The coil frame of the present invention is wound in a double coil winding mode. Figure 2 ;
[0036] Fig.11 The coil frame of the present invention is wound in a double coil winding mode. Figure 3 ;
[0037] Fig.12 The coil frame of the present invention is wound in a double coil winding mode. Figure 4 ;
[0038] Fig.13 The coil frame of the present invention is wound in a double coil winding mode. Figure 5 ;
[0039] Fig.14 It is a front view of the coil of the present invention. DETAILED DESCRIPTION
[0040] For examples, see Figure 1-Figure 14 As shown, a coil frame of the present invention that is convenient for automated winding includes a first flange portion 1, a second flange portion 2, a third flange portion 3, a first winding portion 4, and a second winding portion 5. The first flange portion 1, the second flange portion 2, and the third flange portion 3 are sequentially distributed along the length direction of the coil frame, the first winding portion 4 is arranged between the first flange portion 1 and the second flange portion 2, and the second winding portion 5 is arranged between the second flange portion 2 and the third flange portion 3. The first flange portion 1 is provided with a plurality of terminal holes, and the plurality of terminals are distributed along the width direction of the coil frame. The plurality of terminal holes include a first terminal hole 11 for plugging in a starting terminal, a second terminal hole 13 for plugging in a terminal terminal, and a third terminal hole 12 for plugging in a common terminal, and the third terminal hole 12 is located between the first terminal hole 11 and the second terminal hole 13. In other embodiments, the plurality of terminal holes include the first terminal hole and the second terminal hole, but do not include the third terminal hole. The first flange portion 1 is provided with a wire hanging portion, the bottom end of which is lower than the top end of the first flange portion 1, and the second flange portion 2 is provided with a first guide wire portion for guiding the enameled wire from the second winding portion 5 to the wire hanging portion.
[0041] In this embodiment, the first flange portion 1 is provided with a groove 15, which is located on the inner side of the second terminal hole 13, and the groove 15 runs through both sides of the first flange portion 1 in the thickness direction, and the wire hanging portion is located on a side wall of the groove 15 close to the second terminal hole 13. Specifically, the groove 15 is located between the second terminal hole 13 and the third terminal hole 12. When the first flange portion only includes the first terminal hole and the second terminal hole, the groove is located between the first terminal hole and the second terminal hole.
[0042] In this embodiment, the wire hanging part is an inverted boss 14, and the bottom end of the inverted boss 14 is higher than the bottom end of the groove wall where it is located. The bottom surface 141 of the inverted boss 14 is an inclined surface, and the end of the inclined surface connected to the groove wall where the inverted boss 14 is located is the high end, and the other end of the inclined surface away from the groove wall where the inverted boss 14 is located is the low end, and the angle α between the inclined surface and the vertical direction is 70°-80°. An enameled wire introduction port 16 with a wide top and a narrow bottom is formed between the inverted boss 14 and the groove wall on the other side of the groove 15 to facilitate the introduction of the enameled wire. The width W1 of the inverted boss 14 is smaller than the width W2 of the groove 15.
[0043] In this embodiment, the first wire portion is a wire groove 21, but it is not limited thereto. In other embodiments, the first wire portion is a wire retaining wall or a wire rib. The end of the wire groove 21 close to the second winding portion 5 is open, and the groove bottom surface of the wire groove 21 is an inclined surface. The lower end of the inclined surface is close to the second winding portion 5 and is provided with a rounded corner, and the upper end of the inclined surface is close to the first winding portion 4. The groove bottom surface of the wire groove 21 is provided with a convex column 22 extending upward, and the end of the wire groove 21 close to the outer side of the second flange portion 2 is open, and the convex column 22 is integrally formed with the second flange portion 2 and is located at the end of the wire groove 21. The height difference a2 between the top of the protrusion 22 and the top of the first flange portion 1 is greater than the height difference a1 between the bottom of the inverted boss 14 and the top of the first flange portion 1, which can prevent the end enameled wire and the common end enameled wire from overlapping when the double coil is wound, thereby preventing the reverse voltage from breaking through the overlap when the coil is powered off (a voltage difference is easily formed when the end and the common end wire are overlapped), causing the coil to short-circuit and leading to the loss of relay function. A ridge 23 extending along the width direction of the coil frame is provided at one end of the wire groove 21 close to the first winding portion 4, and the top of the ridge 23 is higher than the height of the enameled wire after winding on the first winding portion 4; the ridge 23 and the high end of the groove bottom surface are in a circular arc transition.
[0044] In this embodiment, the first flange portion 1 is provided with a plurality of vent holes 19, and the three terminal holes (i.e., the first terminal hole 11, the second terminal hole 13, and the third terminal hole 12) are respectively connected to at least one vent hole. The number of the vent holes 19 is specifically three, and the three vent holes 19 correspond to the three terminal holes one by one. The three terminal holes correspond to the corresponding vent holes 19 up and down, respectively, and the aperture of the vent hole 19 is smaller than the aperture of the terminal hole. Specifically, the position where the vent hole 19 is located is opposite to the position where the terminal hole is located, such as Figure 3 In other embodiments, the vent hole is located on the side of the first flange portion. The vent hole 19 is provided so that when the start terminal, the common terminal and the end terminal are tinned and heated, the air in the terminal hole that is heated and expanded can freely flow to the outside of the terminal hole, thereby preventing the air from expanding in the terminal hole and affecting the initial insertion position of the terminal, thereby causing problems such as terminal skewness and change in terminal length.
[0045] In this embodiment, the second flange portion 2 is provided with a second wire portion for leading the enameled wire from the first winding portion 4 to the second winding portion 5. The second wire portion is an inclined retaining wall 25. The inclined retaining wall 25 forms a certain angle with the center line of the coil frame. The inclined retaining wall 25 and the wire groove 21 are distributed along the width direction of the coil frame.
[0046] In this embodiment, a first wire passing notch 17 and a second wire passing notch 18 are provided on the side surface of the first flange portion 1 facing the first winding portion 4, and the first wire passing notch 17 and the second wire passing notch 18 are located on opposite sides of the first winding portion 4. A third wire passing notch 24 corresponding to the second wire portion is provided on the side surface of the second flange portion 2 facing the second winding portion 5. The second flange portion 2 is provided with a magnetic steel slot 26, which is located on the bottom surface of the second flange portion 2 and is connected to the iron core mounting hole 6 that passes through the first flange portion 1, the second flange portion 2, the third flange portion 3, the first winding portion 4 and the second winding portion 5. A limiting boss 27 is provided on both sides of the magnetic steel slot 26, and an arc-shaped notch 271 that cooperates with the rotating shaft of the armature is provided on the two limiting bosses 27.
[0047] The coil frame of the present invention is convenient for automatic winding. When winding, a single coil winding method or a double coil winding method can be adopted. When winding a single coil, it is only necessary to respectively insert the starting terminal 8 and the ending terminal 9 into the terminal holes on both sides of the first flange portion 1 (i.e., the first terminal hole 11 and the second terminal hole 13). Figure 6-Figure 8As shown, the enameled wire 7 starts from the starting terminal 8, passes through the first wire passing notch 17, and completes the winding of the first group of coils 71 in the first winding part 4. The enameled wire 7 directly enters the third wire passing notch 24 along the inclined retaining wall 25, and then completes the winding of the second group of coils 72 in the second winding part 5; then, the enameled wire 7 climbs from the lower end of the bottom surface of the wire groove 21 on the inner side of the protruding column 22 to the higher end, and crosses the convex ridge 23 and is guided in a straight line to the bottom of the inverted boss 14, and after being hung on the inverted boss 14, it is pulled up to the end terminal 9, and is wound clockwise on the end terminal 9 for 2-3 turns to complete the single coil winding.
[0048] When winding a double coil, in addition to inserting the start terminal 8 and the end terminal 9 into the terminal holes on both sides (i.e., the first terminal hole 11 and the second terminal hole 13), the common terminal 10 is also inserted into the middle terminal hole (i.e., the third terminal hole 12). Figure 9-13 As shown, the enameled wire 7 starts from the starting terminal 8, passes through the first wire passing notch 17, completes the winding of the first group of coils 71 in the first winding part 4, and then returns to the common terminal 10, winds 2-3 turns around the common terminal 10, returns to the first winding part 4 along the second wire passing notch 18, winds several turns with a large step interval, enters the third wire passing notch 24 along the inclined retaining wall 25, and then completes the winding of the second group of coils 72 in the second winding part 5; then, the enameled wire 7 climbs from the lower end of the bottom surface of the wire groove 21 on the inner side of the convex column 22 to the high end, crosses the convex ridge 23 and is guided in a straight line to the bottom of the inverted boss 14, is hung on the inverted boss 14, and is pulled up to the end terminal 9, and is wound 2-3 turns clockwise on the end terminal 9 to complete the double coil winding.
[0049] Regardless of the single coil or double coil winding method, the top of the ridge 23 is higher than the height of the first coil 71, which can prevent the enameled wire 73 from crossing and contacting the enameled wire of the first coil 71. Fig.14 As shown, this prevents the reverse voltage from breaking through the overlap when the coil is powered off (a voltage difference is easily formed when the start and end wires are overlapped together), causing the coil to short-circuit and resulting in loss of relay function.
[0050] The present invention provides a coil frame that facilitates automated winding. The first conductor portion is used to replace the bridging terminal, thereby avoiding the need for manual winding of the enameled wire. The wire hanging portion is used to hang the wire, thereby reducing the height of the end wire portion of the enameled wire (i.e., the enameled wire 73 that crosses) between the first flange portion and the second flange portion, thereby avoiding the need for a wire pressing mechanism to perform wire pressing treatment on the end wire portion. The present invention can reduce the potential risk of failure during the winding process by designing the coil frame structure, and can provide better guidance for the fixation and limiting of the enameled wire 7, thereby facilitating automated winding.
[0051] See also Figure 1-Figure 14As shown, a coil of the present invention comprises an enameled wire 7 and a plurality of terminals, wherein the plurality of terminals specifically comprise a starting terminal 8, a common terminal 10 and an end terminal 9. The coil of the present invention also comprises a coil frame for facilitating automatic winding as described above in the present invention, wherein the common terminal 10 can be selectively plugged into the middle terminal hole (i.e., the third terminal hole 12), the starting terminal 8 and the end terminal 9 are respectively plugged into the remaining two terminal holes (i.e., the first terminal hole 11 and the second terminal hole 13), the enameled wire 7 starts from the starting terminal 8, is wound in a single coil winding method or a double coil winding method, and is then led to the wire hanging part by the wire groove 21, and is connected to the end terminal 9 after being hung on the wire hanging part. The common terminal 10 can be selectively plugged into the middle terminal hole 12, which means that when a single-coil winding method is adopted, it is only necessary to plug the starting terminal 8 and the ending terminal 9 into the terminal holes 11 and 13 on both sides of the first flange portion 1 respectively, and the middle terminal hole 12 does not need to be plugged into the common terminal 10; when a double-coil winding method is adopted, the three terminals 11, 12, 13 of the first flange portion 1 correspond to the plugging of the starting terminal 8, the common terminal 10 and the ending terminal 9 respectively.
[0052] A coil of the present invention can be wound in a single coil or in a double coil. The two coil winding methods are as described above and will not be described in detail here. When the plurality of terminal holes of the first flange portion include the first terminal hole and the second terminal hole, but do not include the third terminal hole, the plurality of terminals only include the start terminal and the end terminal, but do not include the common terminal. In this case, the present invention can only be wound in a single coil.
[0053] A magnetic latching relay of the present invention comprises the coil as described above.
[0054] The magnetic latching relay of the present invention has the same parts as those in the prior art or can be implemented by using the prior art.
[0055] The above embodiments are only used to further illustrate a coil frame, coil and magnetic latching relay that are convenient for automated winding of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.
Claims
1. A coil frame for facilitating automated winding, comprising a first flange portion, a second flange portion, a third flange portion, a first winding portion and a second winding portion, wherein the first flange portion, the second flange portion and the third flange portion are sequentially distributed along the length direction of the coil frame, the first winding portion is arranged between the first flange portion and the second flange portion, and the second winding portion is arranged between the second flange portion and the third flange portion; the first flange portion is provided with a plurality of terminal holes, the plurality of terminal holes comprising a first terminal hole for plugging in a starting terminal and a second terminal hole for plugging in a terminal terminal; characterized in that: The first flange portion is provided with a wire hanging portion, the bottom end of which is lower than the top end of the first flange portion, and the enameled wire passes through the bottom end of the wire hanging portion. The second flange portion is provided with a first wire portion for leading the enameled wire from the second winding portion to the wire hanging portion; the first wire portion is not a bridging terminal for winding the enameled wire.
2. The coil frame for automated winding according to claim 1, characterized in that: The first flange is provided with a groove, which is located on the inner side of the second terminal hole and passes through both sides of the first flange in the thickness direction; the wire hanging part is located on one side of the groove near the second terminal hole.
3. The coil frame for automated winding according to claim 2, characterized in that: The wire hanging part is an inverted hanging boss, and the bottom end of the inverted hanging boss is higher than the bottom end of the groove wall where the inverted hanging boss is located.
4. The coil frame for facilitating automated winding according to claim 3, characterized in that: The bottom surface of the inverted boss is an inclined surface, the end of the inclined surface connected to the groove wall where the inverted boss is located is the high end, and the other end of the inclined surface away from the groove wall where the inverted boss is located is the low end; an enameled wire introduction port that is wide at the top and narrow at the bottom is formed between the inverted boss and the groove wall on the other side of the groove.
5. The coil frame for automated winding according to claim 1, characterized in that: The first wire portion is a wire groove, and one end of the wire groove close to the second winding portion is open. The bottom surface of the wire groove is an inclined surface, the lower end of the inclined surface is close to the second winding portion and is provided with a chamfer, and the high end of the inclined surface is close to the first winding portion.
6. The coil frame for automated winding according to claim 5, characterized in that: The bottom surface of the wire trough is provided with a convex column extending upward, and one end of the wire trough close to the outer side of the second flange portion is open, and the convex column is located at the end of the wire trough close to the outer side of the second flange portion.
7. The coil frame for automated winding according to claim 5, characterized in that: A ridge extending along the width direction of the coil frame is arranged at one end of the conductor groove close to the first winding part, and the top of the ridge is higher than the height of the enameled wire after winding on the first winding part; the ridge and the high end of the groove bottom surface are in an arc transition.
8. The coil frame for automated winding according to claim 1, characterized in that: The plurality of terminal holes further include a third terminal hole for plugging a common terminal, and the third terminal hole is located between the first terminal hole and the second terminal hole.
9. The coil frame for facilitating automated winding according to claim 1 or 8, characterized in that: The first flange portion is provided with a plurality of air holes, and the plurality of terminal holes are respectively connected with at least one of the air holes.
10. The coil frame for facilitating automated winding according to claim 9, characterized in that: The plurality of terminal holes correspond to the corresponding air holes in upper and lower directions respectively, and the aperture of the air holes is smaller than the aperture of the terminal holes.
11. The coil frame for automated winding according to claim 1, characterized in that: The second flange portion is provided with a second wire portion for leading the enameled wire from the first winding portion to the second winding portion, and the second wire portion is an inclined retaining wall; the first flange portion is provided with a first wire passing notch and a second wire passing notch on the side facing the first winding portion, and the first wire passing notch and the second wire passing notch are located on two opposite sides of the first winding portion; the second flange portion is provided with a third wire passing notch corresponding to the second wire portion on the side facing the second winding portion; the second flange portion is provided with a magnetic steel slot, and the magnetic steel slot is connected to the iron core mounting hole passing through the first flange portion, the second flange portion, the third flange portion, the first winding portion and the second winding portion; a limiting boss is provided on both sides of the magnetic steel slot, and the two limiting bosses are respectively provided with arc-shaped notches that cooperate with the rotating shaft of the armature.
12. A coil, comprising an enameled wire and a plurality of terminals, characterized in that: It also includes a coil frame that is convenient for automated winding as described in any one of claims 1-11, each terminal is respectively plugged into the corresponding terminal hole, the enameled wire starts from the terminal plugged into the first terminal hole, is led from the first conductor part to the wire hanging part after being wound, and is connected to the terminal plugged into the second terminal hole after being hung on the wire hanging part.
13. A magnetic latching relay, characterized in that: Comprising the coil as claimed in claim 12.
Citation Information
Patent Citations
The coil rack, coil and magnetic latching relay are convenient for automatic winding
CN212848232U