CN213150677U - High radiating electromagnetic relay - Google Patents
High radiating electromagnetic relay Download PDFInfo
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- CN213150677U CN213150677U CN202021877945.9U CN202021877945U CN213150677U CN 213150677 U CN213150677 U CN 213150677U CN 202021877945 U CN202021877945 U CN 202021877945U CN 213150677 U CN213150677 U CN 213150677U
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Abstract
The utility model discloses a high heat dissipation electromagnetic relay, which comprises a base, a shell, an electromagnetic part and two static spring parts, wherein the shell is connected with the base, and the two static spring parts and the electromagnetic part which are arranged on the base are contained in the shell; the electromagnetic part comprises a magnetic circuit part arranged on the base and a movable spring armature part arranged on the magnetic circuit part and matched with the two static spring parts, the two static spring parts respectively comprise a static spring piece and a static contact arranged on the static spring piece, and the static spring piece is provided with an exposed first lead-out pin; the static spring part also comprises an exposed heat dissipation structure, and the heat dissipation structure is connected with the static spring leaf or integrally formed. The utility model discloses can utilize the heat radiating area of the quiet spring part of heat radiation structure greatly increased, thereby improve greatly the utility model discloses a radiating effect.
Description
Technical Field
The utility model relates to an electromagnetic relay especially relates to a high radiating electromagnetic relay.
Background
An electromagnetic relay applied to a photovoltaic inverter in the prior art comprises a base, a shell, a magnetic circuit part, a movable spring armature part and two static spring parts, wherein the two static spring parts are arranged behind the base and only expose leading-out pins respectively for connecting a load circuit. As the power of the photovoltaic inverter is made larger, the power requirement on the relay is also higher and higher. However, the larger the relay power is, the larger the load current is, the more obvious the relay generates heat, so that the overall temperature rise of the relay is higher, and the service life of the relay is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem that prior art exists, a high radiating electromagnetic relay is provided.
The utility model provides a technical scheme that its technical problem adopted is: a high heat-dissipation electromagnetic relay comprises a base, a shell, an electromagnetic part and two static spring parts, wherein the shell is connected with the base, and the two static spring parts and the electromagnetic part which are arranged on the base are contained in the shell; the electromagnetic part comprises a magnetic circuit part arranged on the base and a movable spring armature part arranged on the magnetic circuit part and matched with the two static spring parts, the two static spring parts respectively comprise a static spring piece and a static contact arranged on the static spring piece, and the static spring piece is provided with an exposed first lead-out pin; the method is characterized in that: the static spring part also comprises an exposed heat dissipation structure, and the heat dissipation structure is connected with the static spring leaf or integrally formed.
Furthermore, the heat dissipation structure is made of a conductive material and is provided with a second lead-out pin.
Further, the heat dissipation structure is a heat dissipation plate.
Furthermore, the top end of the static reed is connected with or integrally formed with the top end of the radiating fin, and the static reed and the radiating fin form an inverted U shape; or the part of the static reed, which is connected with the radiating fin or integrally formed, is positioned on the side surface of the static reed, and the static reed and the radiating fin are coplanar or have a preset included angle.
Furthermore, the side wall of the shell is provided with a yielding notch for avoiding the part of the static reed, which is connected with the radiating fin or integrally formed.
Furthermore, the edge of the base is provided with a retaining wall which extends upwards, and the retaining wall enters the range of the abdicating notch and is used for locally filling the abdicating notch.
Further, the base bottom is equipped with a plurality of stabilizer blades, and the height of each stabilizer blade is 3 ~ 13mm respectively.
Furthermore, the movable spring armature part comprises an armature and a movable spring part, the armature is arranged on the magnetic circuit part, the movable spring part is fixedly connected with the armature, the movable spring part is provided with two movable contacts, and the two movable contacts are matched with the static contacts of the two static spring parts one by one.
Furthermore, the armature and the movable spring are connected together through a plastic piece in an insert injection molding or dispensing mode.
Furthermore, the magnetic circuit part comprises a coil rack, a yoke iron, an iron core and an enameled wire, wherein the iron core and the enameled wire are arranged on the coil rack; and a restoring reed is inserted between the yoke and the base, limits the armature and provides the armature for resetting.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. because quiet spring part is still including exerted heat radiation structure, this heat radiation structure with quiet reed is connected or integrated into one piece, makes the utility model discloses can utilize the heat radiating area of the quiet spring part of heat radiation structure greatly increased, thereby improve greatly the utility model discloses a radiating effect.
2. Heat radiation structure is equipped with the second pin-out, makes compared with the prior art the utility model, its each quiet spring part has increased a pin-out respectively to can increase the current-carrying area of being connected with the load end, improve current-carrying capacity.
3. The heat dissipation structure comprises at least one heat dissipation fin, so that the heat dissipation area of the heat dissipation structure is large, the heat dissipation effect is good, the structure is simple, and the forming is easy.
4. The shell lateral wall is provided with a yielding notch used for avoiding the joint of the static reed and the extension piece, so that the static reed is very convenient to assemble. The base edge is equipped with the barricade that upwards extends, and this barricade gets into in the breach scope of stepping down, it is right the breach of stepping down carries out local filling, can avoid the shell step down the breach too big and get into the foreign matter.
5. The base bottom is equipped with a plurality of stabilizer blades, and the height of each stabilizer blade is 3 ~ 13mm respectively, makes compared with the prior art the utility model, the height of its each stabilizer blade obviously increases, can increase the base bottom with the utility model discloses distance between the used PCB board or the base plate should form the heat dissipation space apart from, can further improve the utility model discloses a radiating effect.
The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.
Drawings
FIG. 1 is an exploded view of the first embodiment of the present invention;
fig. 2 is a schematic structural view of a static spring part according to the first embodiment of the present invention;
fig. 3 is a schematic perspective view (without a housing) of the first embodiment of the present invention;
fig. 4 is a schematic perspective view (including a housing) of the first embodiment of the present invention;
FIG. 5 is a front view of the first embodiment of the present invention;
FIG. 6 is a sectional view taken along line A-A of the first embodiment of the present invention;
fig. 7 is a schematic structural view of a static spring part according to a second embodiment of the present invention;
FIG. 8 is a schematic perspective view of the second embodiment of the present invention;
fig. 9 is a schematic perspective view of the second embodiment of the present invention.
Detailed Description
Example one
Referring to fig. 1-6, the electromagnetic relay with high heat dissipation of the present invention includes a base 1, a housing 2, an electromagnetic part and two static spring parts 3, wherein the housing 2 is connected to the base 1, and the two static spring parts 3 and the electromagnetic part disposed on the base 1 are contained in the housing 2; the electromagnetic part comprises a magnetic circuit part 4 arranged on the base 1 and a movable spring armature part arranged on the magnetic circuit part 4 and matched with the two static spring parts 3. The two static spring parts 3 respectively comprise a static spring piece 31 and a static contact 32 arranged on the static spring piece 31, the static spring piece 31 is specifically inserted into the base, the bottom of the static spring piece 31 is provided with an exposed first leading-out pin 311, and specifically, the first leading-out pin 311 and the static spring piece 31 are integrally formed. The stationary spring part 3 further includes an exposed heat dissipating structure integrally formed with the stationary spring plate 31, but not limited thereto, and in other embodiments, the heat dissipating structure and the stationary spring plate 31 are two separate components that are connected together by riveting or other connection means. The "exposed" means that the component (such as the first lead-out pin 311/heat dissipation structure) is located outside the cavity enclosed by the base 1 and the housing 2.
In this embodiment, the heat dissipation structure is specifically composed of a heat dissipation plate 33, but not limited thereto, and in other embodiments, the heat dissipation structure includes at least one heat dissipation column or other realizable structure.
In this embodiment, the bottom of the heat dissipation structure (i.e., the heat dissipation fin 33) is provided with a second lead-out pin 331, the second lead-out pin 331 is integrally formed with the heat dissipation fin 33, and the insertion direction of the second lead-out pin 331 is identical to the insertion direction of the first lead-out pin 311.
In this embodiment, the top end of the stationary spring 31 is integrally connected (integrally connected, i.e., integrally formed) with the top end of the heat sink 33, and the stationary spring 31 and the heat sink 33 form an inverted U-shape. Therefore, the whole structure of the static spring part 3 is simple and compact, and the occupied space is reduced.
In this embodiment, the side wall of the housing 2 is provided with a relief notch 21 for avoiding a portion where the static spring 31 and the heat sink 33 are integrally formed. The heat dissipation fins 33 of the two static spring portions 3 are located on the same side of the housing 2, and the number of the abdicating notches 21 is one, but not limited thereto. The abdicating notch 21 is approximately in an inverted U shape, a small bump 22 is arranged in the middle of the top end of the abdicating notch 21, the height of the bump 22 is far smaller than that of the abdicating notch 21, the height of the bump 22 is basically consistent with the thickness of the integrally formed part of the static spring piece 31 and the radiating fin 33, and the small bump 22 is positioned between the two static spring parts 3. The edge of the base 1 is provided with a retaining wall 11 extending upwards, and the retaining wall 11 enters the range of the abdicating notch 21 and partially fills the abdicating notch 21. Specifically, the top end of the retaining wall 11 contacts or is adjacent to the bottom end of the small bump 22.
In this embodiment, a plurality of support legs 12 are arranged at the bottom end of the base 1, and the height of each support leg 12 is 3-13 mm. The number of the supporting legs 12 is four, and the four supporting legs 12 are distributed at four corners of the bottom end of the base 1.
In this embodiment, the movable spring armature portion includes an armature 5 and a movable spring portion 6, the armature 5 is disposed on the magnetic circuit portion 4, the movable spring portion 6 is fixedly connected to the armature 5, the movable spring portion 6 is disposed with two movable contacts 61, and the two movable contacts 61 are matched with the fixed contacts 32 of the two fixed spring portions 3 one by one. The magnetic circuit part 4 comprises a coil frame 41, a yoke 43, an iron core 44 arranged on the coil frame 41, and an enameled wire 43, wherein the coil frame 41 is vertically arranged on the base 1, the yoke 43 is connected with the iron core 44, and the armature 5 is arranged at the knife edge of the yoke 43 and matched with the pole surface of the iron core 44. The iron core 44 is specifically inserted into the coil frame 41, and two ends of the iron core are exposed, the enameled wire 43 is wound outside the coil frame 41, the yoke 43 is L-shaped, one side of the yoke 43 is fixedly connected (or integrally formed) with the bottom end of the iron core 44, and the other side of the yoke is matched with the side surface of the coil frame 41. A restoring spring 8 is inserted between the yoke 43 and the base 1, and the restoring spring 8 limits the armature 5 and provides the armature 5 with restoration.
In this embodiment, the armature 5 and the movable spring portion 6 are connected together by insert molding or dispensing through a plastic member 7. The armature 5 is specifically L-shaped, and one side of the armature is arranged at the knife edge of the yoke 43 and is matched with the top end surface of the iron core 44 (i.e. the pole surface of the iron core 44); the other side of the armature 5 extends downwards and is connected with the movable spring part 6 through the plastic part 7 in an insert injection molding or dispensing mode. The armature 5 is provided with a through groove, the upper end of the through groove extends to one side of the armature 5, the lower end of the through groove extends to the other side of the armature 5, the reset spring 8 is provided with two folded edges, one folded edge penetrates through the through groove of the armature 5 and is lapped on the upper surface of one side of the armature 5, and the other folded edge is abutted against the lower end surface of the through groove.
The utility model discloses a high radiating electromagnetic relay, it utilizes fin 33 greatly increased the heat radiating area of quiet spring part 3, thereby improved greatly the utility model discloses a radiating effect reduces the utility model discloses calorific capacity when power is great. Fin 33 is equipped with second pin 331, makes the utility model discloses a each quiet spring part 3 has increased a pin respectively to can increase the current-carrying area of being connected with the load end, improve the current-carrying capacity. The utility model discloses a highly obvious increase of each stabilizer blade 12 can increase base 1 bottom and the utility model discloses distance between the PCB board that uses or the base plate should form the heat dissipation space apart from, can further improve the utility model discloses a radiating effect.
Example two
Referring to fig. 7 to 9, the difference between the electromagnetic relay with high heat dissipation performance of the present invention and the first embodiment is: the part of the static spring 31 connected with the heat sink 33 or integrally formed is located at the top of the side surface of the static spring 31, and the static spring 31 and the heat sink 33 have a preset included angle, but not limited to this. In other embodiments, the stationary spring is coplanar with the heat sink.
In this embodiment, the preset included angle between the static spring 31 and the heat sink 33 is substantially 90 °, so that the static spring 31 and the heat sink 33 are substantially L-shaped. The side wall of the shell 2 is also provided with a yielding notch 21 for avoiding the part where the static spring piece 31 and the radiating fin 33 are connected or integrally formed. The radiating fins 33 of the two static spring parts 3 are located on two opposite sides of the shell 2, and the number of the abdicating notches 21 is two and is in one-to-one correspondence with the two static spring parts 3.
In this embodiment, the bottom of the heat sink 33 is also provided with a second lead-out 331.
In this embodiment, the bottom end of the base 1 is also provided with a plurality of support legs 12, and the height of each support leg 12 is 3-13 mm.
The electromagnetic relay with high heat dissipation of the utility model can also utilize the heat dissipation fins 33 to greatly increase the heat dissipation area of the static spring part 3, thereby greatly improving the heat dissipation effect of the utility model; the number of the lead-out pins of the static spring part 3 can be increased by using the second lead-out pins 331 on the radiating fin 33, so that the current carrying area of the connection between the static spring part 3 and a load end is increased, and the current carrying capacity is improved; can utilize each stabilizer blade 12 to increase the heat dissipation space of base 1 bottom, further improve the utility model discloses a radiating effect.
The above-mentioned embodiment is only used to further explain the utility model discloses a high radiating electromagnetic relay, but the utility model discloses do not limit to the embodiment, all according to the utility model discloses a technical entity does any simple modification, equivalent change and modification to above embodiment, all fall into the protection scope of the technical scheme of the utility model.
Claims (10)
1. A high heat-dissipation electromagnetic relay comprises a base, a shell, an electromagnetic part and two static spring parts, wherein the shell is connected with the base, and the two static spring parts and the electromagnetic part which are arranged on the base are contained in the shell; the electromagnetic part comprises a magnetic circuit part arranged on the base and a movable spring armature part arranged on the magnetic circuit part and matched with the two static spring parts, the two static spring parts respectively comprise a static spring piece and a static contact arranged on the static spring piece, and the static spring piece is provided with an exposed first lead-out pin; the method is characterized in that: the static spring part also comprises an exposed heat dissipation structure, and the heat dissipation structure is connected with the static spring leaf or integrally formed.
2. The high heat dissipation electromagnetic relay according to claim 1, characterized in that: the heat dissipation structure is made of conductive materials and is provided with a second leading-out pin.
3. The high heat dissipation electromagnetic relay according to claim 1 or 2, characterized in that: the heat dissipation structure comprises at least one heat dissipation fin.
4. A high heat dissipation electromagnetic relay according to claim 3, wherein: the number of the radiating fins is one, the top end of the static reed is connected with or integrally formed with the top end of the radiating fin, and the static reed and the radiating fins form an inverted U shape; or the part of the static reed, which is connected with the radiating fin or integrally formed, is positioned on the side surface of the static reed, and the static reed and the radiating fin are coplanar or have a preset included angle.
5. The high heat dissipation electromagnetic relay according to claim 1, characterized in that: the side wall of the shell is provided with a yielding notch used for avoiding the part of the static reed, which is connected with the radiating fin or integrally formed.
6. The high heat dissipation electromagnetic relay according to claim 5, characterized in that: the base edge is equipped with the barricade that upwards extends, and this barricade gets into in the breach scope of stepping down, it is right the breach of stepping down carries out local filling.
7. The high heat dissipation electromagnetic relay according to claim 1, characterized in that: the base bottom is equipped with a plurality of stabilizer blades, and the height of each stabilizer blade is 3 ~ 13mm respectively.
8. The high heat dissipation electromagnetic relay according to claim 1, characterized in that: the movable spring armature part comprises an armature and a movable spring part, the armature is arranged on the magnetic circuit part, the movable spring part is fixedly connected with the armature, the movable spring part is provided with two movable contacts, and the two movable contacts are matched with the static contacts of the two static spring parts one by one.
9. The high heat dissipation electromagnetic relay according to claim 8, characterized in that: the armature and the movable spring are connected together through a plastic piece in an insert injection molding or dispensing mode.
10. The high-heat-dissipation electromagnetic relay according to claim 8 or 9, characterized in that: the magnetic circuit part comprises a coil rack, a yoke iron, an iron core and an enameled wire, wherein the iron core and the enameled wire are arranged on the coil rack; and a restoring reed is inserted between the yoke and the base, limits the armature and provides resetting for the armature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021877945.9U CN213150677U (en) | 2020-09-01 | 2020-09-01 | High radiating electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021877945.9U CN213150677U (en) | 2020-09-01 | 2020-09-01 | High radiating electromagnetic relay |
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| Publication Number | Publication Date |
|---|---|
| CN213150677U true CN213150677U (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021877945.9U Active CN213150677U (en) | 2020-09-01 | 2020-09-01 | High radiating electromagnetic relay |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005705A (en) * | 2021-10-30 | 2022-02-01 | 申乐股份有限公司 | Relay with enhanced heat dissipation |
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2020
- 2020-09-01 CN CN202021877945.9U patent/CN213150677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005705A (en) * | 2021-10-30 | 2022-02-01 | 申乐股份有限公司 | Relay with enhanced heat dissipation |
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