CN210575744U - Electromagnetic relay, power battery circuit and electric automobile - Google Patents
Electromagnetic relay, power battery circuit and electric automobile Download PDFInfo
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- CN210575744U CN210575744U CN201922105515.9U CN201922105515U CN210575744U CN 210575744 U CN210575744 U CN 210575744U CN 201922105515 U CN201922105515 U CN 201922105515U CN 210575744 U CN210575744 U CN 210575744U
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- stud
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Abstract
The utility model provides an electromagnetic relay, power battery circuit and electric automobile, this electromagnetic relay includes: a relay housing; the first end of the stud is positioned outside the relay shell, and the second end of the stud is positioned inside the relay shell; the inside of relay housing is equipped with: the armature rotating shaft is fixed on the relay shell; the first end of the armature is connected with the armature rotating shaft, and the second end of the armature can rotate around the armature rotating shaft; the coil winding comprises an electromagnetic ejector rod which can reciprocate along the axial direction of the coil winding, the axial direction of the coil winding is vertical to the axial direction of the stud, and the first end of the electromagnetic ejector rod, which is positioned outside the coil winding, is in contact with the armature; and one end of the spring is fixed on the relay shell, and the other end of the spring is connected with the second end of the armature. The electromagnetic relay can avoid or reduce the system power-off fault caused by repulsion force generated between the armature and the stud when the current passing through the electromagnetic relay is overlarge.
Description
Technical Field
The utility model relates to an electronic control field, in particular to electromagnetic relay, power battery circuit and electric automobile.
Background
An electromagnetic relay is a commonly used electronic control device, and an armature is pushed by magnetic force generated after a coil is electrified until the armature is contacted with a conductor column to complete circuit connection. A typical prior art electromagnetic relay structure is shown in fig. 1.
When the current passing through the electromagnetic relay is overlarge, the armature and the conductor generate repulsion force due to the fact that the conductor generates a magnetic field after being electrified, accidental disconnection occurs, and system power failure is caused.
As shown in fig. 2, the existence of the magnetic field can make the stud and the armature generate magnetic lines of force, the first part is distributed with concentrated I, the second part is distributed with sparse II, the dense magnetic lines of force generate larger repulsive force, the sparse magnetic lines of force generate smaller repulsive force, and the two reasonably generate the tendency of making the armature move downwards. When the current is large enough, the upper jacking force generated by the lower magnetic coil is not enough to resist, and the armature is separated from the upper conductor, so that the current is disconnected.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an electromagnetic relay, power battery circuit and electric automobile for when the electric current through electromagnetic relay is too big among the solution prior art, because produce magnetic field after the conductor circular telegram, lead to armature and conductor to produce the repulsion force, the disconnection of meeting accident arouses the problem of system's outage trouble.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an electromagnetic relay comprising:
a relay housing;
the first end of the stud is positioned outside the relay shell, and the second end of the stud is positioned inside the relay shell;
the inside of relay housing is equipped with:
the armature rotating shaft is fixed on the relay shell;
the first end of the armature is connected with the armature rotating shaft, and the second end of the armature can rotate around the armature rotating shaft;
the coil winding comprises an electromagnetic ejector rod capable of reciprocating along the axial direction of the coil winding;
and one end of the spring is fixed on the relay shell, and the other end of the spring is connected with the second end of the armature.
Further, the inside deflector that still is provided with of relay, the deflector is provided with spacing hole, electromagnetism ejector pin wears to locate in the spacing hole.
Furthermore, the number of the studs is two, and the studs are arranged on the same surface of the relay shell at the same height.
Further, the armature includes:
the armature thereof comprises a first state and a second state; when the armature is in the first state, the second end of the armature is separated from the second end of the stud; when the armature is in the second state, the second end of the armature overcomes the elastic force of the spring and rotates around the armature rotating shaft to a position which is attached to the second end of the stud.
Further, the spring is in an original state when the armature is in the first state.
Further, the coil winding includes: the axial direction of the coil winding is perpendicular to the axial direction of the stud, and the first end of the electromagnetic ejector rod, which is positioned outside the coil winding, is in contact with the armature.
Furthermore, a top roller is arranged at the first end of the electromagnetic ejector rod, and the electromagnetic ejector rod is in contact with the armature through the top roller.
Further, when the armature is in the second state, the spring is in a stretched state, and the direction of the pulling force applied by the spring to the second end of the armature is perpendicular to the axial direction of the coil winding.
A power battery circuit comprises a power supply and the electromagnetic relay.
An electric automobile comprises the power battery circuit.
The embodiment of the utility model has following effect at least:
according to the electromagnetic relay, the structure of the existing electromagnetic relay is improved, the armature rotating shaft and the spring are added, the position of the stud is changed, the electromagnetic ejector rod is parallel to the armature after reaching the maximum stroke through the structural design of the axis of the electromagnetic ejector rod and the axis of the stud, the armature is locked through the movement limitation of the limiting hole or the coil winding to the left and right directions of the electromagnetic ejector rod, a circuit, a sensor or a mechanical switch is not needed to be added, only the fixing mode of the armature needs to be changed, the reliability is high, and the system power-off fault caused by the repulsion force generated by the armature and the stud when the current passing through the electromagnetic relay is too large is avoided or reduced.
Drawings
Fig. 1 is a schematic diagram of a prior art electromagnetic relay;
fig. 2 is a schematic structural diagram illustrating a stable operating state of an electromagnetic relay in the prior art;
fig. 3 is a schematic structural diagram of an electromagnetic relay according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram illustrating a stable operating state of an electromagnetic relay according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses when too big when the electric current through electromagnetic relay among the prior art, because produce magnetic field after the conductor circular telegram, lead to armature and conductor to produce the repulsion, the disconnection that meets accident arouses the problem of system's outage trouble, provide an electromagnetic relay, power battery circuit and electric automobile.
As shown in fig. 3, an embodiment of the present invention provides an electromagnetic relay, including:
a relay housing 1;
the stud 2 is fixed on the relay shell 1, a first end of the stud 2 is positioned outside the relay shell 1, and a second end of the stud 2 is positioned inside the relay shell 1;
the inside of relay housing 1 is equipped with:
an armature rotating shaft 3 fixed on the relay housing 1;
the first end of the armature 4 is connected with the armature rotating shaft 3, and the second end of the armature 4 can rotate around the armature rotating shaft 3;
the coil winding 5 comprises an electromagnetic ejector rod 6 capable of reciprocating along the axial direction of the coil winding 5, wherein the axial direction of the coil winding 5 is perpendicular to the axial direction of the stud 2, and a first end, positioned outside the coil winding 5, of the electromagnetic ejector rod 6 is in contact with the armature 4;
one end of the spring 7 is fixed on the relay shell 1, and the other end of the spring 7 is connected with the second end of the armature 4;
wherein the armature 4 comprises a first state and a second state; when the armature 4 is in the first state, the second end of the armature 4 is separated from the second end of the stud 2; when the armature 4 is in the second state, the second end of the armature 4 overcomes the elastic force of the spring and rotates around the armature rotating shaft 3 to a position which is jointed with the second end of the stud 2;
the utility model discloses electromagnetic relay, improve current electromagnetic relay structure, armature pivot and spring have been increased, the position of double-screw bolt has been changed, make through electromagnetic ejector pin axis and double-screw bolt axis vertically structural design and be parallel with armature after the electromagnetic ejector pin reaches the maximum stroke, and through spacing hole or coil winding to the motion restriction of electromagnetic ejector pin left and right sides direction and die the armature lock, need not to increase the circuit, sensor or mechanical switch, only need change the fixed mode of armature, the reliability is high, avoid or reduce when electromagnetic relay's electric current is too big armature and double-screw bolt production repulsion force and arouse system power failure.
Optionally, a guide plate 8 is further arranged inside the relay, the guide plate 8 is provided with a limiting hole 9, the electromagnetic ejector rod 6 is arranged in the limiting hole 9 in a penetrating manner, the limiting hole 9 is used for limiting the transverse movement of the electromagnetic ejector rod 6, the armature 4 is guaranteed to be locked in the second state, the system power failure caused by accidental power failure is avoided or reduced, and the system power failure caused by the fact that the armature 4 is separated from the stud due to the fact that repulsion force is generated between the armature 4 and the stud 2 when the current of the electromagnetic relay is too large is avoided;
it should be noted that the limiting function of the limiting hole 9 can also be replaced by fixing the coil winding 5 to the bottom end inside the electromagnetic relay housing 1, and when the coil winding 5 is fixed to the bottom end inside the electromagnetic relay housing 1, the electromagnetic push rod 6 cannot move laterally.
Optionally, there are two studs 2, and the two studs are disposed at the same height on the same surface of the relay housing 1, and the relay is connected to an external circuit through the studs 2.
Optionally, a top roller 10 is disposed at a first end of the electromagnetic ejector rod, the electromagnetic ejector rod 6 is in contact with the armature 4 through the top roller 10, and the top roller 10 reduces friction when the electromagnetic ejector rod 6 pushes the armature 4 to rotate, so as to prolong the service life of the electromagnetic ejector rod 6.
Optionally, when the armature 4 is in the first state, the spring 7 is in an original state;
when the armature 4 is in the first state, that is, the relay is not in a circuit, the coil winding 5 does not generate electromagnetic force, the electromagnetic top rod 6 cannot push the armature 4 to move, and therefore the spring 7 is not stretched and is in an original state.
Alternatively, as shown in fig. 4, when the armature 4 is in the second state, the spring 7 is in a stretched state, and the direction of the pulling force applied by the spring 7 to the second end of the armature 4 is perpendicular to the axial direction of the coil winding 5, and the electromagnetic push rod 6 is parallel to the armature 4;
when the armature 4 is in the second state, that is, the relay is switched on, the coil winding 5 generates electromagnetic force, and the electromagnetic ejector rod 6 pushes the armature 4 to rotate around the armature rotating shaft 3 until the second end of the stud 2 is attached to the second end of the stud 2, so that the spring 7 is stretched and is in a stretched state.
The embodiment of the utility model provides a still provide a power battery circuit, including power and foretell electromagnetic relay.
The embodiment of the utility model provides an electric automobile is still provided, including foretell power battery circuit.
The utility model discloses electromagnetic relay, improve current electromagnetic relay structure, armature pivot and spring have been increased, the position of double-screw bolt has been changed, make through electromagnetic ejector pin axis and double-screw bolt axis vertically structural design and be parallel with armature after the electromagnetic ejector pin reaches the maximum stroke, and through spacing hole or coil winding to the motion restriction of electromagnetic ejector pin left and right sides direction and die the armature lock, need not to increase the circuit, sensor or mechanical switch, only need change the fixed mode of armature, the reliability is high, armature and double-screw bolt produce the repulsion and arouse system power failure when avoiding or having reduced the electric current through electromagnetic relay too big.
The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Claims (10)
1. An electromagnetic relay, comprising:
a relay housing (1);
the stud (2) is fixed on the relay shell (1), the first end of the stud (2) is located outside the relay shell (1), and the second end of the stud (2) is located inside the relay shell (1);
the inside of relay housing (1) is equipped with:
an armature rotating shaft (3) fixed on the relay shell (1);
the first end of the armature (4) is connected with the armature rotating shaft (3), and the second end of the armature (4) can rotate around the armature rotating shaft (3);
the coil winding (5), the said coil winding (5) includes an electromagnetic knockout pin (6) that can reciprocate along the axial direction of the said coil winding (5);
and one end of the spring (7) is fixed on the relay shell (1), and the other end of the spring (7) is connected with the second end of the armature (4).
2. The electromagnetic relay according to claim 1, characterized in that a guide plate (8) is further arranged inside the relay, the guide plate (8) is provided with a limiting hole (9), and the electromagnetic push rod (6) is arranged in the limiting hole (9) in a penetrating manner.
3. The electromagnetic relay according to claim 1, characterized in that there are two studs (2) and are arranged at the same level on the same surface of the relay housing (1).
4. The electromagnetic relay according to claim 1, characterized in that the armature (4) comprises:
the armature (4) thereof comprises a first state and a second state; when the armature (4) is in the first state, the second end of the armature (4) is separated from the second end of the stud (2); when the armature (4) is in the second state, the second end of the armature (4) overcomes the elastic force of the spring and rotates around the armature rotating shaft (3) to a position which is attached to the second end of the stud (2).
5. The electromagnetic relay according to claim 4, characterized in that the spring (7) is in a home state when the armature (4) is in the first state.
6. An electromagnetic relay according to claim 1, characterized in that the coil winding (5) comprises: the axial direction of the coil winding (5) is perpendicular to the axial direction of the stud (2), and the first end of the electromagnetic ejector rod (6) located outside the coil winding (5) is in contact with the armature (4).
7. The electromagnetic relay according to claim 1, characterized in that the first end of the electromagnetic tappet (6) is provided with a top roller (10), and the electromagnetic tappet is in contact with the armature (4) through the top roller (10).
8. The electromagnetic relay according to claim 4, characterized in that when the armature (4) is in the second state, the spring (7) is in a stretched state, and the direction of the pulling force exerted by the spring (7) on the second end of the armature (4) is perpendicular to the axial direction of the coil winding (5).
9. A power cell circuit comprising a power source and an electromagnetic relay according to any one of claims 1 to 8.
10. An electric vehicle comprising the power cell circuit of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105515.9U CN210575744U (en) | 2019-11-29 | 2019-11-29 | Electromagnetic relay, power battery circuit and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105515.9U CN210575744U (en) | 2019-11-29 | 2019-11-29 | Electromagnetic relay, power battery circuit and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210575744U true CN210575744U (en) | 2020-05-19 |
Family
ID=70633316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922105515.9U Active CN210575744U (en) | 2019-11-29 | 2019-11-29 | Electromagnetic relay, power battery circuit and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210575744U (en) |
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2019
- 2019-11-29 CN CN201922105515.9U patent/CN210575744U/en active Active
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