CN211352943U - Heat dissipation structure of electric energy meter - Google Patents
Heat dissipation structure of electric energy meter Download PDFInfo
- Publication number
- CN211352943U CN211352943U CN202020224200.6U CN202020224200U CN211352943U CN 211352943 U CN211352943 U CN 211352943U CN 202020224200 U CN202020224200 U CN 202020224200U CN 211352943 U CN211352943 U CN 211352943U
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- CN
- China
- Prior art keywords
- heat
- electric energy
- heat dissipation
- energy meter
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000017525 heat dissipation Effects 0.000 title claims description 30
- 239000002184 metal Substances 0.000 claims abstract description 23
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 229910000896 Manganin Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses an electric energy meter heat radiation structure, include the drain pan and install circuit board in the drain pan, the drain pan includes bottom plate and the curb plate of setting around the bottom, be provided with the thermovent on the bottom plate be fixed with the metal heat-conducting plate on the bottom plate, the back of metal heat-conducting plate with the corresponding position of thermovent is provided with a plurality of heat radiation fins, the circuit board is fixed on the front of metal heat-conducting plate. The utility model discloses an electric energy meter heat radiation structure, circuit board are fixed on the metal heat-conducting plate, and on the heat transfer that the circuit board produced transmitted the metal heat-conducting plate, transmitted the radiating fin again on, because radiating fin is located the air, radiating fin and air convection to in transmitting the heat to the outside air, play good radiating effect.
Description
Technical Field
The utility model relates to an electric energy meter technical field especially relates to an electric energy meter heat radiation structure.
Background
In the national standard, IEC standard and other standards of the existing electric energy meter, strict requirements are imposed on the temperature of the outer surface of the meter shell of the electric energy meter after a temperature rise experiment. With the addition of new technologies such as relay function and manganin metering, the resistance of the electric energy meter is continuously increased, and the maximum working current is continuously increased, so that the heat generated by the electric energy meter (especially a three-phase electric energy meter) in a temperature rise experiment is increased, and the requirement of the temperature rise experiment is met (the temperature rise of the outer surface of the shell of the electric energy meter is not more than 25K at the environmental temperature of 40 ℃), which is more and more difficult.
Disclosure of Invention
To the above-mentioned prior art current situation, the utility model aims to solve the technical problem that a radiating effect is good electric energy meter heat radiation structure is provided.
In order to solve the technical problem, the utility model provides a pair of electric energy meter heat radiation structure, include the drain pan and install circuit board in the drain pan, the drain pan includes the bottom plate and sets up the curb plate around the bottom, be provided with the thermovent on the bottom plate be fixed with the metal heat-conducting plate on the bottom plate, the back of metal heat-conducting plate with the corresponding position of thermovent is provided with a plurality of heat radiation fins, the circuit board is fixed on the front of metal heat-conducting plate.
The utility model discloses an electric energy meter heat radiation structure, circuit board are fixed on the metal heat-conducting plate, and on the heat transfer that the circuit board produced transmitted the metal heat-conducting plate, transmitted the radiating fin again on, because radiating fin is located the air, radiating fin and air convection to in transmitting the heat to the outside air, play good radiating effect.
In one embodiment, the ends of the plurality of heat dissipation fins extend out of the heat dissipation opening.
In one embodiment, a plurality of the heat dissipation fins extend in the up-down direction.
In one embodiment, the circuit board is provided with a relay mounting part for mounting a relay, and the metal heat-conducting plate is provided with a shielding part between the relay mounting part and the base plate.
In one embodiment, the bottom plate is provided with a mounting groove surrounding the heat dissipation port, and a sealing ring is mounted in the mounting groove.
In one embodiment, the back surface of the bottom plate is provided with a plurality of bosses.
The advantageous effects of the additional features of the present invention will be explained in the detailed description of the preferred embodiments of the present description.
Drawings
Fig. 1 is a schematic perspective view of a heat dissipation structure of an electric energy meter according to an embodiment of the present invention from the front;
fig. 2 is an exploded view of the heat dissipation structure of the electric energy meter according to an embodiment of the present invention from the front;
fig. 3 is a schematic perspective view of a heat dissipation structure of an electric energy meter according to an embodiment of the present invention from the back side.
Description of reference numerals: 10. a bottom case; 12. a base plate; 12a, a heat dissipation port; 12b, mounting grooves; 12c, a boss; 14. a side plate; 20. a circuit board; 21. a relay mounting part; 30. a metal heat-conducting plate; 31. heat dissipation fins; 32. a shielding part; 40. and (5) sealing rings.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.
As shown in fig. 1-3, the heat dissipation structure of an electric energy meter in one embodiment of the present invention includes a bottom case 10, a circuit board 20 installed inside the bottom case 10, and a metal heat conduction plate 30, wherein the bottom case 10 is approximately rectangular, and includes a bottom plate 12 and a side plate 14 disposed around the bottom, and a heat dissipation opening 12a is disposed on the bottom plate 12. The metal heat conducting plate 30 is fixed on the bottom plate 12, a plurality of rows of heat dissipating fins 31 are arranged on the back surface of the metal heat conducting plate 30 corresponding to the heat dissipating ports 12a, and the circuit board 20 is fixed on the front surface of the metal heat conducting plate 30.
The utility model discloses an electric energy meter heat radiation structure, circuit board 20 are fixed on metal heat-conducting plate 30, and the heat transfer that circuit board 20 produced transmits heat radiation fin 31 again on transmitting metal heat-conducting plate 30, because heat radiation fin 31 is arranged in the air, heat radiation fin 31 and air convection to in transmitting the heat to the outside air, play the radiating action.
Preferably, the ends of the plurality of heat dissipation fins 31 extend out of the heat dissipation opening 12a, so that the area of the heat dissipation fins 31 is larger and the heat dissipation effect is better.
Preferably, a plurality of the heat dissipation fins 31 extend in the up-down direction. Because a plurality of electric energy meters are generally installed side by side when the electric energy meter is used, the distance in the vertical direction is generally larger than the distance in the acting direction, and more air enters from the vertical direction, so that the heat dissipation fins 31 extend in the vertical direction, the air flow speed is higher, and the heat dissipation effect is better.
Preferably, the circuit board 20 is provided with a relay mounting portion 21 for mounting a relay, and the metal heat-conducting plate 30 has a shielding portion 32 between the relay mounting portion 21 and the base plate 12. The shielding part 32 plays a role in heat dissipation on one hand, and can also play a role in shielding a magnetic field on the other hand, so that the relay is prevented from being interfered by an external magnetic field.
Preferably, the bottom plate 12 is provided with a mounting groove 12b surrounding the heat dissipating port 12a, and a sealing ring 40 is mounted in the mounting groove 12b to prevent water from entering the interior of the bottom case 10 through the heat dissipating port 12 a.
Preferably, the back of the base plate 12 is provided with a plurality of bosses 12c, and when the electric energy meter is fixed on a wall, a gap is formed between the base plate 12 and the wall through the plurality of bosses 12c, so that air enters the gap to take away heat on the heat dissipating fins 31.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides an electric energy meter heat radiation structure, includes the drain pan and installs circuit board in the drain pan, the drain pan includes bottom plate and the curb plate of setting around the bottom, its characterized in that, be provided with the thermovent on the bottom plate be fixed with the metal heat-conducting plate on the bottom plate, the back of metal heat-conducting plate with the corresponding position of thermovent is provided with a plurality of heat radiation fins, the circuit board is fixed on the front of metal heat-conducting plate.
2. The heat dissipation structure of an electric energy meter according to claim 1, wherein ends of the plurality of heat dissipation fins extend out of the heat dissipation opening.
3. The heat dissipation structure of an electric energy meter according to claim 1, wherein the plurality of heat dissipation fins extend in an up-down direction.
4. The heat dissipation structure of an electric energy meter according to claim 1, wherein a relay mounting portion for mounting a relay is provided on the circuit board, and the metal heat-conducting plate has a shielding portion between the relay mounting portion and the base plate.
5. The heat dissipation structure of an electric energy meter according to claim 1, wherein a mounting groove surrounding the heat dissipation opening is formed in the bottom plate, and a sealing ring is mounted in the mounting groove.
6. The electric energy meter heat dissipation structure according to any one of claims 1 to 5, wherein a plurality of bosses are provided on a back surface of the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020224200.6U CN211352943U (en) | 2020-02-27 | 2020-02-27 | Heat dissipation structure of electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020224200.6U CN211352943U (en) | 2020-02-27 | 2020-02-27 | Heat dissipation structure of electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211352943U true CN211352943U (en) | 2020-08-25 |
Family
ID=72093308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020224200.6U Expired - Fee Related CN211352943U (en) | 2020-02-27 | 2020-02-27 | Heat dissipation structure of electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211352943U (en) |
-
2020
- 2020-02-27 CN CN202020224200.6U patent/CN211352943U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |