CN210156326U - Coil and magnetic latching relay thereof - Google Patents
Coil and magnetic latching relay thereof Download PDFInfo
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- CN210156326U CN210156326U CN201921067096.8U CN201921067096U CN210156326U CN 210156326 U CN210156326 U CN 210156326U CN 201921067096 U CN201921067096 U CN 201921067096U CN 210156326 U CN210156326 U CN 210156326U
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Abstract
The utility model discloses a coil and a magnetic latching relay, wherein the coil comprises a coil rack, an enameled wire and three coil terminals; a retaining wall is arranged in the middle of the winding window of the coil frame; the retaining wall is provided with a wire groove for communicating the first winding window and the second winding window, and a bridging terminal, and the direction of the bridging terminal is the same as that of the three terminals; the enameled wire is wound in a single-coil mode or a double-coil mode from the starting end terminal and then connected to the bridging terminal, and the bridging terminal crosses over the first winding window and is connected to the tail end terminal, so that the wound starting end wire and the wound tail end wire are isolated in space. The utility model discloses can enough realize the high withstand voltage under the little volume condition, can avoid the early fatigue rupture that the movable contact spring caused because of big stroke motion again to and avoid taking place armature aversion, promotion card under the condition that great vibration is strikeed and drop and arouse the phenomenon emergence of product inefficacy.
Description
Technical Field
The utility model relates to a relay technical field especially relates to a coil and magnetic latching relay.
Background
A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The magnetic latching relay is one of relays, also is an automatic switch, and like other electromagnetic relays, plays the automatic switch-on and switch-off role to the circuit, and the difference is that the normally closed or normally open state of the magnetic latching relay completely depends on the effect of permanent magnet steel, and the switching of the switch state is completed by the triggering of pulse electric signals with certain width. The coil generally includes a coil frame, an enameled wire and a coil terminal, the coil frame includes flanges at two ends and a winding window between the flanges at two ends, the enameled wire is wound in the winding window of the coil frame, since the coil terminal is arranged at one of the flanges of the coil frame, after the enameled wire is wound, its start and end wires need to be led to one of the flanges of the coil frame to be connected with the coil terminal, which easily causes the start and end wires of the enameled wire to be lapped together, especially the coil in the magnetic latching relay also adopts a double-coil structure, which more easily causes the start and end wires of the enameled wire to be lapped together, when the coil is powered off, a reverse voltage easily breaks through the lap joint of the start and end wires (when the start and end wires are lapped together, a voltage difference is easily formed), causing the coil to be short-circuited, thereby causing. In addition, for the coil with two winding windows, the starting terminal, the common terminal and the tail terminal are generally respectively arranged on the three flanges, under the condition that the product size is small, the distance between the coil leading-out terminal and the movable and static springs is too short, and the requirement of insulation reinforcement cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a coil and magnetic latching relay, through institutional advancement, can enough effectively avoid the top end line overlap joint of enameled wire to cause the drawback of coil short circuit to appear together, can accord with the strong and weak electric isolation requirement when the product is applied to the heavy current occasion again.
The utility model provides a technical scheme that its technical problem adopted is: a coil includes a bobbin, an enamel wire, and a coil terminal; the coil rack comprises flanges at two ends of the length, a winding window between the flanges at the two ends, and an iron core mounting hole penetrating through the flanges at the two ends along the length direction; a retaining wall is further arranged in the middle of the winding window of the coil frame to divide the winding window of the coil frame into a first winding window and a second winding window which are separated from each other; the coil terminals comprise a starting terminal, a public terminal and a tail terminal, the three terminals are arranged in the flange on the side of the first winding window in a side-by-side mode along the width direction of the coil frame, and the directions of the three terminals are the same; the retaining wall is provided with a wire groove for communicating the first winding window and the second winding window, and a bridging terminal, and the direction of the bridging terminal is the same as that of the three terminals; the enameled wire is connected to the bridging terminal from the starting terminal through a single-coil structure formed by winding in a single-coil mode or a double-coil structure formed by winding in a double-coil mode, and the bridging terminal crosses over the first winding window to be connected to the tail terminal, so that the wound starting wire and the wound tail wire are isolated in space.
The flange on the side of the first winding window is provided with three terminal holes for respectively inserting the three terminals, the three terminal holes are arranged at intervals along the width direction of the coil rack, and the common terminal is inserted in the terminal hole in the middle position.
The single coil structure formed by winding in the single coil mode comprises a first coil wound at a first winding window and a second coil wound at a second winding window, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil passes through the wire guide groove and the starting end wire of the second coil are integrally connected, and a tail end wire of the second coil is connected to the bridging terminal and spans across the bridging terminal, the first winding window serves as the tail end wire of the enameled wire to be connected to the tail end terminal, so that the starting end wire and the tail end wire of the wound single coil structure are spatially isolated.
The double-coil structure formed by winding in the double-coil mode comprises a first coil wound at a first winding window and a second coil wound at a second winding window, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil is connected to a public terminal and integrally connected with the starting end wire of the second coil through a first winding window and a wire guide groove, and a tail end wire of the second coil is connected to the bridging terminal and spanned by the bridging terminal to span the first winding window to serve as the tail end wire of the enameled wire to be connected to the tail end terminal, so that the starting end wire and the tail end wire of the double-coil structure after winding are spatially isolated.
The cross-sectional shape of wire winding window is the rectangle approximately, the barricade is the rectangle shape approximately, the bottom surface at the barricade is established respectively to metallic channel and bridging terminal, is equipped with first slot at the junction corresponding to bridging terminal, bridging terminal is pegged graft in the first slot of barricade to be interference fit.
The wire groove is obliquely connected between the first winding window and the second winding window.
And in the groove walls on the two sides of the wire groove, the positions connected with the first winding window and the second winding window are respectively designed into arc-shaped structures so as to avoid scraping the enameled wire.
The top surface of barricade is equipped with the undercut and is the recess that is used for installing the magnet steel, the recess with the iron core mounting hole is linked together.
And limiting bosses are respectively arranged on two sides of the groove to limit the displacement of the magnetic steel filled into the groove along the width direction of the coil rack.
The top of the limit boss is provided with a semicircular notch used for accommodating the rotating shaft of the armature so as to match with the rotating shaft of the armature and limit the rotating shaft of the armature to move along the length direction of the coil rack.
A magnetically held relay comprising a coil as described above.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the structure that the retaining wall is arranged in the middle of the winding window of the coil frame, so as to divide the winding window of the coil frame into a first winding window and a second winding window which are separated; the coil terminals comprise a starting terminal, a public terminal and a tail terminal, the three terminals are arranged in the flange on the side of the first winding window in a side-by-side mode along the width direction of the coil frame, and the directions of the three terminals are the same; the retaining wall is provided with a wire groove for communicating the first winding window and the second winding window, and a bridging terminal, and the direction of the bridging terminal is the same as that of the three terminals; the enameled wire is connected to the bridging terminal after starting from the starting terminal through a single-coil structure formed by winding in a single-coil mode or a double-coil structure formed by winding in a double-coil mode, and the bridging terminal crosses over the first winding window to be connected to the tail terminal, so that the wound starting wire and the wound tail wire are isolated in space. The utility model discloses a this kind of structure can enough effectively avoid the top end line overlap joint of enameled wire to cause the drawback of coil short circuit to appear together, can accord with the strong and weak electric isolation requirement when the product is applied to the heavy current occasion again.
2. The utility model discloses owing to adopted the width direction who is the coil bracket along the line with three terminal and in the flange of this one side of first wire winding window mode dress side by side, and have great distance between the sound spring, not only can realize strengthening insulating function under little volume, can satisfy again that the user uses the strong and weak electricity isolation requirement that many products closely installed, and need not increase the area of PCB board.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the coil and the magnetic latching relay of the present invention are not limited to the embodiments.
Drawings
Fig. 1 is a schematic perspective view of a coil according to an embodiment of the present invention (an iron core and a yoke are mounted);
fig. 2 is a side view of a coil of an embodiment of the present invention;
fig. 3 is a schematic perspective view of a bobbin of a coil according to an embodiment of the present invention;
fig. 4 is a schematic perspective view (turned-over state) of a bobbin of a coil according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a coil and armature arrangement according to an embodiment of the present invention;
fig. 6 is a schematic view of a coil mounted magnetic steel according to an embodiment of the present invention;
figure 7 is a cross-sectional view of a coil mounted magnetic steel of an embodiment of the present invention;
fig. 8 is a schematic diagram of a single-coil winding process (process one) for a coil according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a single-coil winding process of a coil according to an embodiment of the present invention (process two);
fig. 10 is a schematic diagram of a single-coil winding process of a coil according to an embodiment of the present invention (process three);
fig. 11 is a schematic diagram of a dual-coil winding process of a coil according to an embodiment of the present invention (process one);
fig. 12 is a schematic diagram of a double-coil winding process of a coil according to an embodiment of the present invention (process two);
fig. 13 is a schematic diagram of a double-coil winding process of the coil according to the embodiment of the present invention (process three).
Detailed Description
Examples
Referring to fig. 1 to 11, a coil of the present invention includes a coil bobbin 3, an enamel wire 2, and a coil terminal 1; the bobbin 3 includes flanges 31 at both ends of the length, a winding window between the flanges 31 at both ends, and a core mounting hole 32 penetrating the flanges at both ends in the length direction; the iron core 61 is arranged in the iron core mounting hole 32 of the coil frame 3, and two ends of the iron core 61 are fixed with the yoke 62 outside the iron core mounting hole 32 in a riveting mode; a retaining wall 34 is further provided at the middle position of the winding window of the coil frame 3 to divide the winding window of the coil frame into a first winding window 331 and a second winding window 332 which are separated from each other; the coil terminal 1 comprises a start terminal 11, a common terminal 12 and an end terminal 13, the three terminals 1 are arranged in the flange 31 at the side of the first winding window 331 in a side-by-side mode along the width direction of the coil frame, and the three terminals 1 are in the same orientation; a wire groove 341 for communicating between the first winding window 331 and the second winding window 332 is formed on the retaining wall 34, and a bridging terminal 4 is installed, and the direction of the bridging terminal 4 is the same as the direction of the three terminals 1; the enamel wire 2 is wound in a single-coil manner or a double-coil manner from the start terminal 11 and then connected to the bridge terminal 4, and the bridge terminal 4 crosses over the first winding window 331 and is connected to the end terminal 13, so that the wound start wire 21 and end wire 22 are spatially isolated.
In this embodiment, three terminal holes 36 for respectively inserting the three terminals are formed in the flange 31 on the side of the first winding window 331, the three terminal holes 311 are arranged at a certain interval along the width direction of the bobbin, the three terminals such as the start terminal 11, the common terminal 12, and the end terminal 13 are respectively inserted into the corresponding terminal holes 36, and the common terminal 12 is inserted into the terminal hole at the middle position.
In this embodiment, the cross-sectional shape of the winding window is substantially rectangular, the retaining wall 34 is substantially rectangular, the wire groove 341 and the bridge terminal 4 are respectively disposed on the bottom surface of the retaining wall 34, a first slot 342 is disposed at a connection position corresponding to the bridge terminal 4, and the bridge terminal 4 is inserted into the first slot 341 of the retaining wall 34 and is in interference fit with the first slot 341.
In this embodiment, the wire groove 341 is obliquely connected between the first winding window 331 and the second winding window 332.
In this embodiment, the slot walls of the wire slot 341 on both sides are respectively configured to have an arc-shaped structure at the positions connected to the first winding window 331 and the second winding window 332, so as to avoid breaking the enameled wire.
In this embodiment, the top surface of the retaining wall 34 is provided with a recess 343 which is recessed downward and is used for mounting magnetic steel, and the recess 343 is communicated with the iron core mounting hole 32.
In this embodiment, two sides of the groove 343 are respectively provided with a limit protrusion 344 to limit the displacement of the magnetic steel 51 loaded into the groove along the width direction of the coil frame 3.
In this embodiment, the top of the limit boss 344 is opened with a semicircular notch 35 for receiving the rotating shaft of the armature to match the rotating shaft 521 of the armature 52, so as to limit the movement of the rotating shaft 521 of the armature 52 along the length direction of the coil former 3.
The utility model discloses can adopt the single coil structure that the single coil mode winding formed, or the twin coil structure that twin coil mode winding formed.
The single coil structure formed by single coil winding comprises a first coil wound at a first winding window 331 and a second coil wound at a second winding window 332, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil is integrally connected with the starting end wire of the second coil through the wire groove, and a tail end wire of the second coil is connected to the bridging terminal and spans across the bridging terminal, the first winding window serves as the tail end wire of the enameled wire to be connected to the tail end terminal, so that the starting end wire and the tail end wire of the wound single coil structure are spatially isolated. When the single-coil winding is adopted, as shown in fig. 8 to 10, after the enameled wire 2 is led out from the start terminal 11, the first coil is wound around the first winding window 331, after the first coil is wound, the enameled wire 2 is led to the second winding window 332 from the wire groove 341 to be wound into the second coil, after the second coil is wound, the enameled wire is connected to the bridging terminal 4, and is connected to the end terminal 13 by crossing the first winding window 331 through the bridging terminal, so that the start line and the end line of the wound single-coil structure are spatially isolated.
The double-coil structure formed by winding in a coil mode comprises a first coil wound at a first winding window 331 and a second coil wound at a second winding window 332, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil is connected to a common terminal and integrally connected with the starting end wire of the second coil through the first winding window and a wire guide groove, and a tail end wire of the second coil is connected to the bridging terminal and is connected to the tail end terminal by crossing the first winding window through the bridging terminal to serve as the tail end wire of the enameled wire, so that the starting end wire and the tail end wire of the wound double-coil structure are isolated in space. When the dual-coil winding is adopted, as shown in fig. 11 to 13, after the enameled wire 2 is led out from the start terminal 11, the first coil is wound in the first winding window 331, after the first coil is wound, the enameled wire 2 is connected to the common terminal 12, then the enameled wire is wound in the first winding window 331 for several turns at a step with a larger interval from the common terminal 12, and is led into the second winding window by the wire groove 24 to be wound into the second coil, after the second coil is wound, the enameled wire is connected to the bridging terminal, and is connected to the end terminal by the bridging terminal across the first winding window, so that the start line of the first coil in the wound dual-coil structure and the end line of the second coil in the dual-coil structure are spatially isolated.
The utility model discloses a magnetic latching relay, include as above the coil.
The utility model discloses a coil and magnetic latching relay, which adopts the structure that a retaining wall 34 is arranged in the middle of the winding window of the coil frame 3, so as to divide the winding window of the coil frame 3 into a first winding window 331 and a second winding window 332 which are separated; the coil terminal 1 comprises a starting terminal 11, a common terminal 12 and a tail terminal 13, the three terminals 1 are arranged in a flange 31 on one side of the first winding window in a side-by-side mode along the width direction of the coil frame, and the three terminals 1 are in the same direction; a wire groove 341 for communicating the first winding window and the second winding window is formed on the retaining wall 34, and a bridging terminal 4 is installed, and the direction of the bridging terminal 4 is the same as the direction of the three terminals 1; the enamel wire 2 is wound in a single-coil manner or a double-coil manner from the start terminal 11 and then connected to the bridge terminal 4, and is connected to the end terminal 13 by crossing the first winding window 331 based on the bridge terminal 4, so that the wound start wire and end wire are spatially isolated. The utility model discloses a this kind of structure can enough effectively avoid the top end line overlap joint of enameled wire to cause the drawback of coil short circuit to appear together, can accord with the strong and weak electric isolation requirement when the product is applied to the heavy current occasion again.
The utility model discloses a coil and magnetic latching relay, owing to adopted the width direction who is the coil bracket along the line with three terminal 1 to be the mode dress side by side in the flange 31 of this one side of first wire winding window 331, and have great distance between the sound spring, not only can realize strengthening insulating function under little volume, can satisfy the strong and weak electric isolation requirement that the user used many products to closely install again, and need not increase the area of PCB board.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (11)
1. A coil includes a bobbin, an enamel wire, and a coil terminal; the coil rack comprises flanges at two ends of the length, a winding window between the flanges at the two ends, and an iron core mounting hole penetrating through the flanges at the two ends along the length direction; the method is characterized in that: a retaining wall is further arranged in the middle of the winding window of the coil frame to divide the winding window of the coil frame into a first winding window and a second winding window which are separated from each other; the coil terminals comprise a starting terminal, a public terminal and a tail terminal, the three terminals are arranged in the flange on the side of the first winding window in a side-by-side mode along the width direction of the coil frame, and the directions of the three terminals are the same; the retaining wall is provided with a wire groove for communicating the first winding window and the second winding window, and a bridging terminal, and the direction of the bridging terminal is the same as that of the three terminals; the enameled wire is connected to the bridging terminal after starting from the starting terminal through a single-coil structure formed by winding in a single-coil mode or a double-coil structure formed by winding in a double-coil mode, and the bridging terminal crosses over the first winding window to be connected to the tail terminal, so that the wound starting wire and the wound tail wire are isolated in space.
2. The coil of claim 1, wherein: the flange on the side of the first winding window is provided with three terminal holes for respectively inserting the three terminals, the three terminal holes are arranged at intervals along the width direction of the coil rack, and the common terminal is inserted in the terminal hole in the middle position.
3. The coil of claim 2, wherein: the single coil structure formed by winding in the single coil mode comprises a first coil wound at a first winding window and a second coil wound at a second winding window, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil passes through the wire guide groove and the starting end wire of the second coil are integrally connected, and a tail end wire of the second coil is connected to the bridging terminal and spans across the bridging terminal, the first winding window serves as the tail end wire of the enameled wire to be connected to the tail end terminal, so that the starting end wire and the tail end wire of the wound single coil structure are spatially isolated.
4. The coil of claim 2, wherein: the double-coil structure formed by winding in the double-coil mode comprises a first coil wound at a first winding window and a second coil wound at a second winding window, wherein a starting end wire of the first coil is a starting end wire of the enameled wire, a tail end wire of the first coil is connected to a public terminal and integrally connected with the starting end wire of the second coil through a first winding window and a wire guide groove, and a tail end wire of the second coil is connected to the bridging terminal and spanned by the bridging terminal to span the first winding window to serve as the tail end wire of the enameled wire to be connected to the tail end terminal, so that the starting end wire and the tail end wire of the double-coil structure after winding are spatially isolated.
5. A coil according to claim 1 or 2 or 3 or 4, wherein: the cross-sectional shape of wire winding window is the rectangle approximately, the barricade is the rectangle shape approximately, the bottom surface at the barricade is established respectively to metallic channel and bridging terminal, is equipped with first slot at the junction corresponding to bridging terminal, bridging terminal is pegged graft in the first slot of barricade to be interference fit.
6. The coil of claim 5, wherein: the wire groove is obliquely connected between the first winding window and the second winding window.
7. The coil of claim 1, wherein: and in the groove walls on the two sides of the wire groove, the positions connected with the first winding window and the second winding window are respectively designed into arc-shaped structures so as to avoid scraping the enameled wire.
8. The coil of claim 1, wherein: the top surface of barricade is equipped with the undercut and is the recess that is used for installing the magnet steel, the recess with the iron core mounting hole is linked together.
9. The coil of claim 8, wherein: and limiting bosses are respectively arranged on two sides of the groove to limit the displacement of the magnetic steel filled into the groove along the width direction of the coil rack.
10. The coil of claim 9, wherein: the top of the limit boss is provided with a semicircular notch used for accommodating the rotating shaft of the armature so as to match with the rotating shaft of the armature and limit the rotating shaft of the armature to move along the length direction of the coil rack.
11. A magnetic latching relay characterized in that: comprising a coil according to any of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067096.8U CN210156326U (en) | 2019-07-09 | 2019-07-09 | Coil and magnetic latching relay thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067096.8U CN210156326U (en) | 2019-07-09 | 2019-07-09 | Coil and magnetic latching relay thereof |
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| Publication Number | Publication Date |
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| CN210156326U true CN210156326U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921067096.8U Active CN210156326U (en) | 2019-07-09 | 2019-07-09 | Coil and magnetic latching relay thereof |
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| CN (1) | CN210156326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335787A (en) * | 2019-07-09 | 2019-10-15 | 厦门宏发电声股份有限公司 | A kind of coil and its magnetic latching relay |
| EP3944265A3 (en) * | 2020-07-22 | 2022-03-02 | Zhangzhou Hongfa Electroacoustic Co., Ltd. | Bobbin that facilitates automatic winding, coil and latching relay |
-
2019
- 2019-07-09 CN CN201921067096.8U patent/CN210156326U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110335787A (en) * | 2019-07-09 | 2019-10-15 | 厦门宏发电声股份有限公司 | A kind of coil and its magnetic latching relay |
| EP3944265A3 (en) * | 2020-07-22 | 2022-03-02 | Zhangzhou Hongfa Electroacoustic Co., Ltd. | Bobbin that facilitates automatic winding, coil and latching relay |
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