CN221326623U - Current sensor - Google Patents
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- CN221326623U CN221326623U CN202322860101.3U CN202322860101U CN221326623U CN 221326623 U CN221326623 U CN 221326623U CN 202322860101 U CN202322860101 U CN 202322860101U CN 221326623 U CN221326623 U CN 221326623U
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- 230000005389 magnetism Effects 0.000 claims abstract description 35
- 238000001514 detection method Methods 0.000 claims description 26
- 238000010586 diagram Methods 0.000 description 7
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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Abstract
The present disclosure relates to a current sensor, comprising: a housing; the switching busbar is connected with the shell, through holes for the devices to be tested to penetrate are formed in two ends of the switching busbar, and the devices to be tested are used for forming magnetic fields to be tested corresponding to the switching busbar; the transfer busbar is also provided with a magnetism increasing groove, the magnetism increasing groove comprises a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged relative to the long axis of the transfer busbar and are positioned between the two through holes; the signal transfer piece is connected to the shell and is provided with a magnetic field detector, the magnetic field detector corresponds to the magnetism increasing groove, and the magnetic field detector is used for detecting the intensity of a magnetic field to be detected. According to the magnetic field detector, the axisymmetric magnetism increasing grooves are formed in the switching busbar, so that the magnetic field generated by the device to be detected in the switching busbar is more concentrated and not easy to disperse, the strength of the magnetic field to be detected is increased, the anti-interference capability of the magnetic field to be detected is improved, and the magnetic field detector can detect the magnetic field more easily.
Description
Technical Field
The disclosure relates to the technical field of electric sensors, and in particular relates to a current sensor.
Background
The current sensor is a current detection device, and based on the Hall magnetic induction principle, a magnetic field detector in the current sensor detects a magnetic field formed by a device to be detected, so that the magnetic field is calculated, and various parameters of the current to be detected are obtained.
The magnetic field formed by the current to be tested in the switching busbar is dispersed, and the magnetic field anti-interference capability is poor, so that the magnetic field detector is not easy to detect the magnetic field.
Disclosure of utility model
The present disclosure provides a current sensor to at least solve the above technical problems existing in the prior art.
According to a first aspect of the present disclosure, there is provided a current sensor comprising:
A housing;
The switching busbar is connected with the shell, through holes for the devices to be tested to penetrate are formed in two ends of the switching busbar, and the devices to be tested are used for forming magnetic fields to be tested corresponding to the switching busbar;
The transfer busbar is also provided with a magnetism increasing groove, the magnetism increasing groove comprises a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged relative to the long axis of the transfer busbar and are positioned between the two through holes;
The signal transfer piece is connected to the shell and is provided with a magnetic field detector, the magnetic field detector corresponds to the magnetism increasing groove, and the magnetic field detector is used for detecting the strength of the magnetic field to be detected.
In an embodiment, the first slot body and the second slot body are half-way slot bodies with the same shape, a first distance is formed between the first slot body and the second slot body, and the length of the first distance is smaller than the width of the detection area of the magnetic field detector.
In one embodiment, the inner surface of the magnetic field detector is connected to the side of the signal adapter facing the adapter busbar, and the outer surface of the signal adapter is facing the adapter busbar.
In an embodiment, the magnetic field detector is disposed through the magnetism enhancing slot, the inner surface is connected to the signal adaptor, and the outer surface faces the slot wall of the magnetism enhancing slot.
In one embodiment, the magnetic field detector is disposed at the center of the magnetism increasing slot.
In one embodiment, the first slot is the same size as the second slot, and the first slot is in communication with the second slot.
In an embodiment, the first slot body and the second slot body have the same size, a second distance is provided between the first slot body and the second slot body, and the magnetic field detector is arranged at the center of the first slot body or the second slot body in a penetrating manner.
In one embodiment, the housing is provided with a placement groove, and the signal adapter is arranged in the placement groove;
the tank bottom of standing groove is provided with the setting element, the setting element wears to locate the signal switching piece, in order to be used for making the signal switching piece is fixed in the casing.
In an embodiment, the current sensor includes a mounting base, and the mounting base is connected to the housing and provided with a connection hole for connecting to a power module.
In an embodiment, the current sensor includes a connecting member, where the connecting member is disposed through the housing, and one end of the connecting member is connected to the signal adapter, and the other end of the connecting member is connected to the to-be-connected member.
According to the current sensor, the axisymmetric magnetism increasing grooves are formed in the switching busbar, so that the magnetic field generated by the device to be measured in the switching busbar is more concentrated and not easy to disperse, the strength of the magnetic field to be measured is increased, the anti-interference capability of the magnetic field to be measured is improved, and the magnetic field detector can detect the magnetic field more easily.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic diagram showing the overall structure of a current sensor according to a first embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a switching busbar in a current sensor according to a first embodiment of the disclosure;
FIG. 3 is a schematic diagram showing the structure of a signal adapter in a current sensor according to a first embodiment of the present disclosure;
Fig. 4 is a schematic diagram showing a configuration of a transfer busbar in a current sensor according to a second embodiment of the present disclosure;
FIG. 5 is a schematic diagram showing the structure of a signal adapter in a current sensor according to a second embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a switching busbar in a current sensor according to a third embodiment of the disclosure;
Fig. 7 shows a schematic diagram of the overall structure of a current sensor according to a first embodiment of the present disclosure.
The reference numerals in the figures illustrate: 1. a housing; 2. a switching busbar; 21. a through hole; 22. a magnetism increasing groove; 221. a first tank body; 3. a signal adapter; 31. a first adapter; 32. a second adapter; 4. a magnetic field detector; 41. a detection body; 42. pins; 5. a placement groove; 6. a positioning piece; 7. a mounting base; 71. a connection hole; 8. a connecting piece; 9. and a guide post.
Detailed Description
In order to make the objects, features and advantages of the present disclosure more comprehensible, the technical solutions in the embodiments of the present disclosure will be clearly described in conjunction with the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person skilled in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
As shown in fig. 1 to 6, according to a first aspect of the present disclosure, there is provided a current sensor including: a housing 1; the switching busbar 2 is connected to the shell 1, and through holes 21 for the devices to be tested to pass through are formed in two ends of the switching busbar 2, and the devices to be tested are used for forming magnetic fields to be tested corresponding to the switching busbar 2; the transfer busbar 2 is also provided with a magnetism increasing groove 22, the magnetism increasing groove 22 comprises a first groove body 221 and a second groove body 222, and the first groove body 221 and the second groove body 222 are symmetrically arranged relative to the long axis of the transfer busbar 2 and are positioned between the two through holes 21; the signal adapter 3 is connected to the housing 1, and is provided with a magnetic field detector 4, the magnetic field detector 4 corresponds to the magnetism increasing groove 22, and the magnetic field detector 4 is used for detecting the intensity of the magnetic field to be detected.
The housing 1 is injection molded from a thermoplastic material that is resistant to high temperatures.
The switching busbar 2 is embedded in the shell 1 as an insert, and two ends of the switching busbar 2 can be set to be in a specific shape according to actual needs.
Through holes 21 are formed at two ends of the switching busbar 2 for the device to be tested to pass through, so that the device to be tested forms a magnetic field to be tested in the switching busbar 2 after being electrified.
The switching busbar 2 has a plurality of, specifically, the quantity of switching busbar 2 is three, and three switching busbar 2 are inlayed in casing 1 along width direction equidistance side by side, have the same distance between the first cell body 221 of adjacent switching busbar 2.
The magnetism increasing groove 22 is formed in the switching busbar 2 and is located between the two through holes 21, the magnetism increasing groove 22 comprises a first groove body 221 and a second groove body 222, and the first groove body 221 and the second groove body 222 are symmetrically arranged relative to the long axis of the switching busbar 2 so as to ensure that the magnetic field to be measured is relatively uniform.
The device to be tested passes through the through hole 21 of the switching busbar 2, forms the magnetic field to be tested on the switching busbar 2, uses the switching busbar on the market, and the magnetic field to be tested can be too dispersed, makes the magnetic field intensity everywhere of the switching busbar low, leads to the magnetic field interference killing feature of being tested poor, and the magnetism increasing groove 22 of relative switching busbar 2 major axis symmetry has been seted up to the switching busbar 2 that this scheme provided between two through holes 21, makes the magnetic field to be tested change for the magnetic field to be tested on the non-slotted switching busbar relatively, and the magnetic field intensity that embodies around the magnetism increasing groove 22 is strengthened to the interference killing feature of magnetic field to be tested has been improved, so that magnetic field detector 4 detects the magnetic field to be tested more easily.
The signal adapter 3 is specifically a PCB board and is connected to the housing 1.
The magnetic field detector 4 is disposed corresponding to the magnetism increasing slot 22, and specifically, the magnetic field detector 4 is connected to a side of the signal adaptor 3 facing the adaptor busbar 2.
The magnetic field detector 4 is arranged corresponding to the magnetism increasing groove 22, so that the magnetic field detector 4 can detect the magnetic field to be detected more easily.
As shown in fig. 2, in the first embodiment, the first slot 221 and the second slot 222 are half-way slots with the same shape, and a first distance is formed between the first slot 221 and the second slot 222, and the length of the first distance is smaller than the width of the detection area of the magnetic field detector 4.
Specifically, the first slot body 221 and the second slot body 222 are identical in shape and are elongated semi-through slot bodies, the first slot body 221 and the second slot body 222 have the same long axis, the first slot body 221 has opposite first ends and second ends, the second slot body 222 has opposite first ends and second ends, the first ends and the second ends of the first slot body 221 and the first ends and the second ends of the second slot body 222 have the same axis, and the second ends of the first slot body 221 and the second ends of the second slot body 222 have the first distance.
The first end of the first slot 221 and the first end of the second slot 222 are both open ends, and the second end of the first slot 221 and the second end of the second slot 222 are both arc-shaped closed ends.
The detection area of the magnetic field detector 4 comprises a first detection point and a second detection point, the first detection point and the second detection point are symmetrically arranged relative to the magnetic field detector 4, and the width of the detection area specifically refers to the linear distance from the first detection point to the second detection point.
The magnetic field detector 4 has a plurality of kinds in practical application, and the internal parameters of the magnetic field detectors 4 of different kinds are different to adapt to different detection scenes, and the positions of the first detection point and the second detection point are related to the internal parameters of the magnetic field detector 4, which is not specifically limited herein.
The length of the first distance is smaller than the width of the detection area of the magnetic field detector 4, so that the area of the portion of the magnetic field to be detected, which is enhanced by the magnetism increasing groove 22, is defined in the detection area of the magnetic field detector 4, thereby making it easier for the magnetic field detector 4 to detect the magnetic field to be detected.
In a first embodiment, as shown in fig. 3, the inner surface of the magnetic field detector 4 is connected to the side of the signal adapter 3 facing the adapter busbar 2, and the outer surface is facing the adapter busbar 2.
The length direction of the signal adapter 3 is perpendicular to the width direction of the adapter busbar 2.
The magnetic field detector 4 includes a pin 42 and a detecting body 41, one end of the pin 42 is connected to the detecting body 41, the other end is connected to the signal adaptor 3, the detecting body 41 is of a rectangular parallelepiped structure, the pin 42 has a plurality of pins, and the pins are located on two opposite sides of the detecting body 41.
The inner surface of the magnetic field detector 4 is specifically a surface of the detecting body 41, which is attached to a side surface of the signal adaptor 3 facing the adaptor busbar 2, and the outer surface is specifically a surface opposite to the inner surface, facing the adaptor busbar 2, and parallel to the opposite surface of the adaptor busbar 2.
The linear distance between the detection body 41 and the first groove 221 is the same as the linear distance between the detection body 41 and the second groove 222.
Thus, the magnetic field intensity of the magnetic field to be detected in the detection area is increased, and the interference suppression capability of the plurality of switching busbar 2 is improved along the length direction of the switching busbar 2, so that the magnetic field to be detected is more easily detected by the magnetic field detector 4.
In the second embodiment, as shown in fig. 4, the first groove 221 and the second groove 222 are the same size, and the first groove 221 and the second groove 222 communicate.
Specifically, the first slot body 221 and the second slot body 222 are cuboid semi-through slots, the first end of the first slot body 221 and the first end of the second slot body 222 are open ends, the two ends of the first slot body 221 and the second slot body 222 are overlapped, and the first slot body 221 and the second slot body 222 are communicated through overlapped parts, so that the magnetizing slot 22 with a cuboid structure is formed.
In the second embodiment, as shown in fig. 5, the magnetic field detector 4 is disposed through the magnetism increasing slot 22, the inner surface is connected to the signal adapter 3, and the outer surface faces the slot wall of the magnetism increasing slot 22.
The signal adaptor 3 includes a first adaptor body 31 and a second adaptor body 32, the length direction of the first adaptor body 31 is perpendicular to the width direction of the plurality of adaptor busbar 2 and is connected to the housing 1, the second adaptor body 32 is connected to one side of the first adaptor body 31 facing the adaptor busbar 2 and penetrates through the magnetism increasing slot 22, and the number of the second adaptor bodies 32 is the same as the number of the adaptor busbar 2.
In the magnetic field detector 4, the inner surface of the detecting body 41 is attached to a surface of the second adapter 32 perpendicular to the longitudinal direction of the first adapter 31, and the outer surface faces the groove wall of the magnetism increasing groove 22.
Therefore, the magnetic field intensity of the magnetic field to be detected in the detection area is increased, and the interference suppression of the plurality of switching busbar 2 is improved from the depth direction of the magnetism increasing groove 2, so that the magnetic field to be detected is more easily detected by the magnetic field detector 4.
The magnetic field detector 4 is disposed at the center of the magnetism increasing slot 22, specifically, the detecting body 41 is disposed at the center of the magnetism increasing slot 22, so that the first detection point location and the second detection point location are aligned with respect to the magnetism increasing slot 22, thereby ensuring that the magnetic field distribution detected by the magnetic field detector 4 is relatively uniform.
In the third embodiment, as shown in fig. 5 and 6, the first slot 221 and the second slot 222 have the same size, and a second distance is provided between the first slot 221 and the second slot 222, and the magnetic field detector 4 is disposed through the center of the first slot 221 or the second slot 222.
The first groove body 221 and the second groove body 222 are rectangular groove bodies, the first end and the second end of the first groove body 221 and the second groove body 222 are closed ends, the second distance is specifically a linear distance between the second end of the first groove body 221 and the second end of the second groove body 222, and the specific length of the second distance is set according to practical applications and is not limited herein.
The signal adaptor 3 includes a first adaptor 31 and a second adaptor 32, the length direction of the first adaptor 31 is perpendicular to the width direction of the plurality of adaptor busbar 2 and is connected to the housing 1, the second adaptor 32 is connected to one side of the first adaptor 31 facing the adaptor busbar 2 and is penetrated in the first slot 221 or the second slot 222, the inner surface of the detecting body 41 is attached to one surface of the second adaptor 32 perpendicular to the length direction of the first adaptor 31, the outer surface faces the slot wall of the magnetism enhancing slot 22, and the detecting body 41 is disposed in the center of the first slot 221 or the second slot 222.
The switching busbar 2 is provided with a plurality of magnetic field detectors 4 which are correspondingly arranged on a groove body of the busbar in a penetrating way so as to reduce interference among the plurality of magnetic field detectors 4.
For example, the switching busbar 2 and the magnetic field detectors 4 each have three, and the three magnetic field detectors 4 are in one-to-one correspondence with the first groove bodies 221 of the three switching busbars 2.
Therefore, the magnetic field intensity of the magnetic field to be detected in the detection area is increased, and the interference suppression of the plurality of switching busbar 2 is improved from the depth direction of the magnetism increasing groove 2, so that the magnetic field to be detected is more easily detected by the magnetic field detector 4.
As shown in fig. 7, in an embodiment, the housing 1 is provided with a placement groove 5, and the signal adapter 3 is disposed in the placement groove 5; the tank bottom of the placing groove 5 is provided with a positioning piece 6, and the positioning piece 6 penetrates through the signal adapter 3 so as to be used for fixing the signal adapter 3 to the shell 1.
The cross-sectional shape of the placement groove 5 is the same as the cross-sectional shape and size of the signal adapter 3 to fit the signal adapter 3.
The positioning pieces 6 are provided with a plurality of positioning pieces 6, and the plurality of positioning pieces 6 are arranged at the bottom of the placing groove 5 and penetrate through the signal adapter 3 so as to be used for improving the stability of the connecting structure between the signal adapter 3 and the shell 1.
The tank bottom of the placing groove 5 is also provided with a screw bottom hole, the signal adapter 3 is provided with a mounting hole, and a self-tapping screw penetrates through the mounting hole and is connected to the screw bottom hole, so that the stability of a connecting structure between the signal adapter 3 and the shell 1 is further improved.
In an embodiment, the current sensor includes a mounting base 7, where the mounting base 7 is connected to the housing 1 and provided with a connection hole 71 for connecting to a power module.
The mount 7 has a plurality of mounts 7, and the plurality of mounts 7 are connected to the power module through circular holes 71.
In one embodiment, the current sensor includes a connection component 8, where the connection component 8 is disposed through the housing 1, and one end of the connection component is connected to the signal adapter 3, and the other end of the connection component is used to connect to-be-connected pieces.
The connecting piece 8 has a plurality of, and a plurality of connecting pieces 8 set up side by side, and connecting piece 8 is the metal contact pin, designs to L type, U type or I type according to the structure and the actual demand of casing 1, and signal switching piece 2 is worn to locate to the one end of connecting piece 8, and the other end is used for connecting to wait the connecting piece to make current sensor under the circular telegram condition, make signal switching piece 3 electricity connect in to wait the connecting piece.
The housing 1 is provided with a guide post 9 cooperating with the connecting member 8, juxtaposed with the connecting member 8 and higher than the connecting member 8 for guiding the connecting member 8 to be connected to the member to be connected.
Compared with current sensors on the market, the current sensor provided by the scheme omits a magnetic core, so that the influence of the performance of the magnetic core on the measurement precision of the current sensor is reduced, the precision of current detection is improved, the weight of the current sensor is relatively reduced, and the manufacturing cost is lower.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A current sensor, comprising:
A housing;
The switching busbar is connected with the shell, through holes for the devices to be tested to penetrate are formed in two ends of the switching busbar, and the devices to be tested are used for forming magnetic fields to be tested corresponding to the switching busbar;
The transfer busbar is also provided with a magnetism increasing groove, the magnetism increasing groove comprises a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged relative to the long axis of the transfer busbar and are positioned between the two through holes;
The signal transfer piece is connected to the shell and is provided with a magnetic field detector, the magnetic field detector corresponds to the magnetism increasing groove, and the magnetic field detector is used for detecting the strength of the magnetic field to be detected.
2. The current sensor according to claim 1, wherein,
The first groove body and the second groove body are semi-through groove bodies with the same shape, a first distance is reserved between the first groove body and the second groove body, and the length of the first distance is smaller than the width of the detection area of the magnetic field detector.
3. The current sensor of claim 2, wherein the magnetic field detector has an inner surface connected to a side of the signal adapter facing the adapter busbar and an outer surface facing the adapter busbar.
4. The current sensor of claim 1, wherein the magnetic field detector is disposed through the magnetically enhanced slot, the inner surface is connected to the signal adapter, and the outer surface is oriented toward a slot wall of the magnetically enhanced slot.
5. The current sensor of claim 4, wherein the magnetic field detector is disposed in a center of the magnetically enhanced tank.
6. The current sensor of claim 5, wherein the first slot is the same size as the second slot, the first slot and the second slot communicating.
7. The current sensor of claim 1, wherein the first slot and the second slot are the same size, and a second distance is provided between the first slot and the second slot, and the magnetic field detector is disposed through a center of the first slot or the second slot.
8. The current sensor of claim 1, wherein the housing is provided with a placement slot, the signal adapter being disposed in the placement slot;
the tank bottom of standing groove is provided with the setting element, the setting element wears to locate the signal switching piece, in order to be used for making the signal switching piece is fixed in the casing.
9. The current sensor of claim 1, wherein the current sensor comprises a mounting base, the mounting base is connected to the housing and provided with a connecting hole for connecting a power module.
10. The current sensor according to claim 1, wherein the current sensor comprises a connecting member, the connecting member is arranged through the housing, one end of the connecting member is connected to the signal adapter, and the other end of the connecting member is used for connecting a member to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322860101.3U CN221326623U (en) | 2023-10-24 | 2023-10-24 | Current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322860101.3U CN221326623U (en) | 2023-10-24 | 2023-10-24 | Current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221326623U true CN221326623U (en) | 2024-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322860101.3U Active CN221326623U (en) | 2023-10-24 | 2023-10-24 | Current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221326623U (en) |
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- 2023-10-24 CN CN202322860101.3U patent/CN221326623U/en active Active
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