CN213986613U - Current sensor convenient for heat dissipation - Google Patents
Current sensor convenient for heat dissipation Download PDFInfo
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- CN213986613U CN213986613U CN202022437999.XU CN202022437999U CN213986613U CN 213986613 U CN213986613 U CN 213986613U CN 202022437999 U CN202022437999 U CN 202022437999U CN 213986613 U CN213986613 U CN 213986613U
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- heat dissipation
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- radiator
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Abstract
The utility model relates to a current sensor convenient for heat dissipation, which comprises a shell, a base connected with the shell, a magnetic core arranged in the shell, a Hall element connected with the magnetic core, an operational amplifier circuit board connected with the Hall element through a circuit, an operational amplifier arranged on the operational amplifier circuit board connected with the Hall element through a circuit, a plurality of heat dissipation air inlets arranged on the two side surfaces of the shell, the heat dissipation air inlets communicated with the inner cavity of the shell, a radiator arranged on the top of the shell, an air inlet end of the radiator positioned in the shell, an air outlet end of the radiator facing the outer side of the shell, a plurality of heat dissipation air inlets evenly distributed on the side surface of the shell in a ring direction, a dustproof filter screen arranged at the heat dissipation air inlets, during the working process of the sensor, the radiator is started, the heat dissipation air inlets suck the outside air into the inner cavity of the shell and lead out the air outlet end of the radiator, and lead out the heat in the shell in time through the flowing air, the heat dissipation efficiency of the sensor is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the sensor and specifically relates to a convenient radiating current sensor.
Background
The current sensor is a detection device which can sense the information of the current to be detected and convert the sensed information into an electric signal meeting certain standards or other information in required forms according to a certain rule for output so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like. Current sensors, also known as magnetic sensors, can be used in household appliances, smart grids, electric vehicles, wind power generation, and the like.
The current sensor mainly comprises an electromagnetic current transformer and an electronic current transformer, wherein the electromagnetic current transformer is taken as an example, the existing electromagnetic current transformer comprises a shell, a base, a magnetic core, an operational amplifier circuit board and a Hall element, the magnetic core, the operational amplifier circuit board and the Hall element are arranged in the shell, the existing electromagnetic current transformer is basically not provided with a heat dissipation mechanism, and the electromagnetic current transformer has higher requirement on heat dissipation performance when being arranged in a closed space, so that the heat dissipation structure of the electromagnetic current transformer is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a current sensor convenient for heat dissipation in order to solve the defects existing in the prior art.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides a convenient radiating current sensor, includes the casing, the base of being connected with the casing is equipped with the magnetic core in, and hall element is connected to the magnetic core, and hall element passes through the line connection operational amplifier circuit board, and the operational amplifier of installation passes through line connection hall element on the operational amplifier circuit board, be equipped with a plurality of heat dissipation inlet ports on the both sides side of casing, the inner chamber intercommunication of heat dissipation inlet port and casing, the top installation radiator of casing, the air inlet end of radiator is located the casing, and the air-out end of radiator is towards the outside of casing.
Further, the bottom of casing is equipped with sensor signal output port department, and sensor signal output port department installs the contact pin.
Furthermore, a plurality of heat dissipation inlet ports are evenly arranged on the side surface of the shell in the circumferential direction, and dustproof filter screens are installed at the heat dissipation inlet ports.
Furthermore, fixed ears are installed on two sides of the shell.
Further, the magnetic core, the operational amplifier circuit board and the hall element are all installed in the shell.
Further, the magnetic core is annular.
The utility model has the advantages that: be equipped with a plurality of heat dissipation inlet ports on the both sides side of the casing of this sensor, the heat dissipation inlet port communicates with the inner chamber of casing, the top installation radiator of casing, the air inlet end of radiator is located the casing, the air-out end of radiator is towards the outside of casing, a plurality of heat dissipation inlet ports are fitted with the ring and are evenly arranged in the side of casing, dustproof filter screen is installed to heat dissipation inlet port department, the in-process of sensor work, the radiator starts, the heat dissipation inlet port inhales the air in the external world casing inner chamber and derives from the air-out end of radiator, in time derive the heat in the casing through the air that flows, the radiating efficiency of sensor has been improved greatly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the internal structure of the present invention.
Detailed Description
As shown in fig. 1 and 2, a current sensor convenient for heat dissipation includes a housing 1 and a base 2 connected to the housing 1, a magnetic core 3 is disposed in the housing 1, the magnetic core 3 is annular, the magnetic core 3 is connected to a hall element 4, the hall element 4 is connected to an operational amplifier circuit board 5 through a line, an operational amplifier mounted on the operational amplifier circuit board 5 is connected to the hall element 4 through a line, and the magnetic core 3, the operational amplifier circuit board 5 and the hall element 4 are all mounted in the housing.
Be equipped with a plurality of heat dissipation inlet ports 6 on the both sides side of casing 1, heat dissipation inlet port 6 and the inner chamber intercommunication of casing 1, radiator 7 is installed at the top of casing 1, and the air inlet end of radiator 7 is located casing 1, and the air-out end of radiator 7 is towards the outside of casing 1.
Further, the bottom of the shell 1 is provided with a sensor signal output port 8, and a contact pin 9 is installed at the sensor signal output port 8.
A plurality of heat dissipation inlet ports 6 are evenly arranged on the side surface of the shell 1 in the circumferential direction, and dustproof filter screens are installed at the heat dissipation inlet ports 6. Fixing lugs 10 are arranged on two sides of the shell 1, and the whole sensor is conveniently fixed through the fixing lugs 10.
The utility model discloses current sensor's theory of operation does: the magnetic flux generated by the primary current I P is gathered in a magnetic circuit by a high-quality magnetic core, the Hall element is fixed in a very small air gap to perform linear detection on the magnetic flux, the Hall voltage output by the Hall device is processed by a special circuit, the secondary side outputs a follow-up output voltage consistent with the primary waveform, and the voltage can accurately reflect the change of the primary current.
Be equipped with a plurality of heat dissipation inlet ports 6 on the both sides side of casing 1 of this sensor, heat dissipation inlet port 6 communicates with casing 1's inner chamber, casing 1's top installation radiator 7, the air inlet end of radiator 7 is located casing 1, the air-out end of radiator 7 is towards the outside of casing 1, a plurality of heat dissipation inlet ports 6 are equipped with the annular and evenly arranged in casing 1's side, 6 dustproof filter screens of installation in heat dissipation inlet port, the in-process of sensor work, radiator 7 starts, heat dissipation inlet port 6 inhales the air in the external world to casing 1 inner chamber and derives from radiator 7's air-out end, heat in with casing 1 through the air that flows is in time derived, the radiating efficiency of sensor has been improved greatly.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a convenient radiating current sensor, includes the casing, the base of being connected with the casing is equipped with the magnetic core in, and hall element is connected to the magnetic core, and hall element passes through line connection operational amplifier circuit board, and the operational amplifier of installation passes through line connection hall element on the operational amplifier circuit board, its characterized in that, be equipped with a plurality of heat dissipation inlet ports on the both sides side of casing, the heat dissipation inlet port communicates with the inner chamber of casing, and the top installation radiator of casing, the air inlet end of radiator are located the casing, and the air-out end of radiator is towards the outside of casing.
2. The current sensor convenient for heat dissipation according to claim 1, wherein a sensor signal output port is formed at the bottom of the housing, and a contact pin is mounted at the sensor signal output port.
3. The current sensor convenient for heat dissipation according to claim 2, wherein a plurality of heat dissipation air inlets are uniformly arranged on the side surface of the housing in a circumferential direction, and a dustproof filter screen is installed at the heat dissipation air inlet.
4. The current sensor for facilitating heat dissipation according to claim 3, wherein fixing lugs are installed at both sides of the housing.
5. The current sensor convenient for heat dissipation of claim 3, wherein the magnetic core, the operational amplifier circuit board and the Hall element are all mounted in a housing.
6. The current sensor of claim 3, wherein the magnetic core is ring-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437999.XU CN213986613U (en) | 2020-10-27 | 2020-10-27 | Current sensor convenient for heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022437999.XU CN213986613U (en) | 2020-10-27 | 2020-10-27 | Current sensor convenient for heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213986613U true CN213986613U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022437999.XU Active CN213986613U (en) | 2020-10-27 | 2020-10-27 | Current sensor convenient for heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213986613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960348A (en) * | 2021-09-24 | 2022-01-21 | 国网河北省电力有限公司营销服务中心 | High-precision TMR current sensor for direct current metering |
| CN117452037A (en) * | 2023-12-25 | 2024-01-26 | 南京中旭电子科技有限公司 | Detachable Hall current sensor |
-
2020
- 2020-10-27 CN CN202022437999.XU patent/CN213986613U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960348A (en) * | 2021-09-24 | 2022-01-21 | 国网河北省电力有限公司营销服务中心 | High-precision TMR current sensor for direct current metering |
| CN117452037A (en) * | 2023-12-25 | 2024-01-26 | 南京中旭电子科技有限公司 | Detachable Hall current sensor |
| CN117452037B (en) * | 2023-12-25 | 2024-03-15 | 南京中旭电子科技有限公司 | Detachable Hall current sensor |
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