CN116359586B - Current detection device - Google Patents
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- CN116359586B CN116359586B CN202310430862.7A CN202310430862A CN116359586B CN 116359586 B CN116359586 B CN 116359586B CN 202310430862 A CN202310430862 A CN 202310430862A CN 116359586 B CN116359586 B CN 116359586B
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000003475 lamination Methods 0.000 claims 1
- 239000000306 component Substances 0.000 abstract 1
- 239000008358 core component Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
- G01R15/148—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop involving the measuring of a magnetic field or electric field
Abstract
The disclosure relates to the technical field of current detection equipment, and provides a current detection device, which comprises a first installation station, a second installation station, a positioning installation frame, a sensing element and a magnetic core assembly, wherein the first installation station is used for installing a current sensor; the first mounting station and the second mounting station are used for components on the substrate; the sensing element is detachably arranged at the first installation station through the positioning installation frame; the magnetic core component is arranged at the second installation station; the positioning mounting frame is provided with a mounting part for positioning and mounting the sensing element and a positioning part for positioning and mounting the positioning mounting frame on the first mounting station; the sensing element is arranged corresponding to the magnetic core assembly and can sense and detect magnetic field information of the magnetic core assembly. The current detection device can ensure the accurate position relation of the sensing element relative to the first installation station, avoid the problem of assembly deflection error between the sensing element and the magnetic core assembly, and greatly improve the accuracy of current detection.
Description
Technical Field
The disclosure relates to the technical field of current detection equipment, and in particular relates to a current detection device.
Background
The motor drive control system is a control center of the running of the new energy automobile, and is a main control component of the functions of normal running, regenerative braking energy recovery, fault diagnosis processing, vehicle state monitoring and the like of the new energy automobile. The controller is mainly used for controlling the operation of the motor according to the current fed back by the sensor measurement, so that the accuracy of the current measurement greatly influences the accuracy and precision of the control.
Currently, there are two main schemes for current measurement in motor drive control systems on the market: 1. the integrated sensor module is adopted, namely, a magnetic core, a sensing element, a substrate and the like are integrated into one integrated module, but the assembly process is complex, and a plurality of integrated sensor modules are required to be installed when the currents of a plurality of channels are required to be measured; 2. the split type structure scheme is adopted, namely the sensing elements and the magnetic cores are correspondingly arranged in groups, one channel corresponds to one group of sensing elements and the magnetic cores when currents of a plurality of channels are measured, but the reliability of the sensing elements and the magnetic cores in the scheme is poor in complete exposure, the relative positions of the sensing elements and the magnetic cores are not completely fixed when the sensing elements and the magnetic cores are installed, and the accuracy of current measurement can be seriously affected by assembly deflection errors between the sensing elements and the magnetic cores.
In view of this, a new current detecting device is needed in the market to solve the drawbacks of the current measuring split structure in the existing motor driving control system in the assembling process.
Disclosure of Invention
The embodiments of the present disclosure provide a current detection device, so as to solve or at least partially solve the above technical problems existing in the prior art.
The current detection device provided by the embodiment of the disclosure comprises a first installation station, a second installation station, a positioning installation frame, a sensing element and a magnetic core assembly;
the first mounting station and the second mounting station are used for fixing components on a substrate;
the sensing element is detachably arranged at the first installation station through a positioning installation frame;
the magnetic core assembly is arranged at the second installation station;
the positioning mounting frame is provided with a mounting part for positioning and mounting the sensing element and a positioning part for positioning and mounting the positioning mounting frame to the first mounting station;
the sensing element is arranged corresponding to the magnetic core assembly and can sense and detect magnetic field information of the magnetic core assembly.
In an embodiment, the positioning mounting frame further comprises a bracket plate body;
the two side plate surfaces of the support plate body are respectively a first mounting surface and a second mounting surface;
the mounting part is arranged on the first mounting surface, and a positioning slot for positioning and mounting the sensing element is formed in the mounting part.
In an implementation manner, an avoidance hole site communicated with the bottom wall of the positioning slot is also penetratingly formed in the support plate body;
when the sensing element is positioned and installed in the positioning slot, the power connection pin in the sensing element at least partially extends out of the avoidance hole site.
In one embodiment, the positioning slot comprises two main slot walls oppositely arranged along the length direction of the positioning slot and two side slot walls oppositely arranged along the width direction of the positioning slot;
wherein, the installation department is also provided with the dodge mouth position that switches on respectively with two side slot walls.
In an embodiment, the positioning portion is disposed on the second mounting surface and includes at least two positioning columns disposed at intervals;
and a positioning hole for inserting the positioning column and a power connection hole position corresponding to the avoidance hole position are correspondingly arranged in the first installation station.
In one embodiment, the positioning slot is perpendicular to the first mounting surface, and the positioning post is perpendicular to the second mounting surface.
In an embodiment, the positioning posts and the positioning slots are arranged along the same straight line direction, and at least two positioning posts are respectively positioned at the head side and the tail side of the positioning slots.
In one embodiment, the magnetic core assembly includes a magnetic core body;
the magnetic core body is formed by stacking a plurality of magnetic core sheets or integrally injection molding;
the magnetic core body is provided with a detection gap, and the detection gap is provided with two sides which face each other at intervals;
when the magnetic core assembly is installed at the second installation station, the sensing element is correspondingly positioned in the detection gap.
In one embodiment, the two side faces each further have a recess recessed toward the inside of the core body.
In one embodiment, the recess is configured as a groove;
the grooves extend along the length direction of the side surfaces.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
when the current detection device provided by the embodiment of the disclosure is specifically assembled and used, the sensing element is positioned and installed at the installation part in the positioning installation frame, so that the preliminary position fixation of the sensing element is realized, the sensing element can be wrapped and protected through the installation part, and the direct naked installation of the sensing element is avoided; the positioning part in the positioning mounting frame can be correspondingly positioned and mounted on the first mounting station in the substrate; and then the magnetic core assembly is mounted at the second mounting station in a matching way, so that the sensing element can be correspondingly arranged with the magnetic core assembly and can sense and detect the magnetic field information of the magnetic core assembly.
Compared with the installation mode of the current measurement split type structure in the existing motor drive control system, the current detection device realizes split installation of the sensing element and the magnetic core assembly, and meanwhile, the function of installation protection and accurate positioning installation of the sensing element can be achieved through the positioning installation frame, so that the accurate position relation of the sensing element relative to the first installation station can be ensured, the problem of assembly deflection error between the sensing element and the magnetic core assembly is avoided, and the accuracy of current detection is greatly improved.
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 shows an assembled schematic view of a current detection device provided by an embodiment of the present disclosure;
FIG. 2 illustrates a block diagram of a positioning mount in a current sensing device provided by an embodiment of the present disclosure;
FIG. 3 is a block diagram illustrating another view of a positioning mount in a current sensing device according to an embodiment of the present disclosure;
FIG. 4 shows a structural exploded view of a current detection device provided by an embodiment of the present disclosure;
FIG. 5 illustrates a block diagram of a magnetic core assembly in a current sensing apparatus provided by an embodiment of the present disclosure;
FIG. 6 illustrates a front view of the magnetic core assembly of FIG. 5;
fig. 7 illustrates a vertical cross-sectional view of a current detection device provided by an embodiment of the present disclosure.
The reference numerals in the figures illustrate: 1. a substrate; 11. a first mounting station; 12. a second mounting station; 2. positioning the mounting frame; 21. a mounting part; 211. positioning the slot; 212. avoiding the port position; 22. a positioning part; 23. a support plate body; 231. avoiding hole sites; 3. a sensing element; 4. a magnetic core assembly; 41. a side surface; 411. a concave portion.
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.
Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
As shown in conjunction with fig. 1, 2 and 4, embodiments of the present disclosure provide a current sensing device that includes first and second mounting stations 11, 12, a positioning mount 2, a sensing element 3 and a magnetic core assembly 4; the first mounting station 11 and the second mounting station 12 are used for mounting components on the substrate 1; the sensing element 3 is detachably mounted on the first mounting station 11 through the positioning mounting frame 2; the magnetic core assembly 4 is mounted on the second mounting station 12; wherein the positioning mounting frame 2 is provided with a mounting part 21 for positioning and mounting the sensing element 3 and a positioning part 22 for positioning and mounting the positioning mounting frame on the first mounting station 11; the sensing element 3 is provided corresponding to the magnetic core assembly 4 and is capable of sensing magnetic field information of the magnetic core assembly 4.
The current detection device can be specifically applied to a current detection part in a motor drive control system of a new energy automobile, and is described by way of example.
When the current detection device is specifically assembled and used, firstly, the sensing element 3 is positioned and installed on the installation part 21 in the positioning installation frame 2, so that the preliminary position fixation of the sensing element 3 is realized, the sensing element 3 can be wrapped and protected through the installation part 21, then, the positioning installation frame 2 is correspondingly positioned and installed on the first installation station 11 in the substrate 1 through the positioning part 22 of the positioning installation frame, and finally, the magnetic core assembly 4 is installed on the second installation station 12, so that the sensing element 3 can be correspondingly arranged with the magnetic core assembly 4 and can sense and detect the magnetic field information of the magnetic core assembly 4.
Compared with the installation mode of the split type structure for measuring the current in the existing motor drive control system, the current detection device provided by the embodiment of the disclosure realizes split installation of the sensing element 3 and the magnetic core assembly 4, and simultaneously has the functions of installation protection and accurate positioning installation on the sensing element 3 through the positioning installation frame 2, so that the accurate position relation of the sensing element 3 relative to the first installation station 11 can be ensured, the problem of assembly deflection error between the sensing element 3 and the magnetic core assembly 4 is avoided, and the accuracy of current detection is greatly improved.
In addition, it should be noted that, since the sensing element 3 and the magnetic core assembly 4 are respectively installed at the first installation station 11 and the second installation station 12 in the substrate 1, the installation and fixation of the sensing element 3 and the magnetic core assembly 4 are independent from each other and are not affected by each other, when one of the sensing element 3 and the magnetic core assembly 4 fails in the use process, the other sensing element and the magnetic core assembly 4 can be correspondingly detached and replaced, and normal use can be continued without being affected, so that the maintenance cost is greatly reduced. And the parameter performance of the sensing element 3 and the magnetic core assembly 4 can be pre-adapted and calibrated, so as to simplify the working procedure of the controller in the substrate 1 and facilitate the disassembly and replacement in the subsequent maintenance.
In addition, as further described with reference to fig. 1 and 7, the substrate 1 may be, but not limited to, a PCB, and the first mounting station 11 may be integrally connected to the substrate 1, and the second mounting station 12 may be assembled and connected by a connection fixture such as a bolt.
In an embodiment, the positioning mounting frame 2 further comprises a bracket plate body 23; the two side plate surfaces of the support plate body 23 are respectively a first mounting surface and a second mounting surface; the mounting portion 21 is disposed on the first mounting surface, and a positioning slot 211 for positioning and mounting the sensor element 3 is formed in the mounting portion 21.
Specifically, as described in further detail with reference to fig. 2 and 4, the mounting portion 21 is provided with a first mounting surface protruding from the support plate 23, and a positioning slot 211 for positioning and mounting the sensing element 3 is formed in the mounting portion 21, so that the sensing element 3 can be wrapped and mounted in the positioning slot 211 of the mounting portion 21 in a manner of being fixed by insertion.
Furthermore, both the sensor element 3 and the positioning slot 211 may be arranged in a clearance fit assembly relationship, and the mounting and fixing of the accurate position of the sensor element 3 is achieved by the limited mounting of the sensor element 3 by the positioning slot 211.
In addition, in order to further improve the wrapping protection effect of the positioning slot 211 on the sensing element 3, the depth of the positioning slot 211 may be set to be more than half of the height of the sensing element 3 and less than three fourths of the height of the sensing element 3, so that the positioning slot 211 not only can play a role in fixing protection, but also is convenient for later disassembly and maintenance of the sensing element 3.
The specific arrangement mode of the positioning slot 211 in the mounting portion 21 has the advantages of simple structure, convenience and reliability in mounting and positioning the sensing element 3 and wrapping protection effect of the sensing element 3.
In an embodiment, the support plate 23 is further provided with a hole for avoiding 231 communicated with the bottom wall of the positioning slot 211; when the sensing element 3 is positioned and installed in the positioning slot 211, the power connection pin in the sensing element 3 at least partially extends out of the avoidance hole position 231.
Specifically, as described in further detail with reference to fig. 3 and fig. 4, the support plate 23 is further provided with a hole 231 for avoiding, and the hole 231 for avoiding is used for conducting with the bottom wall of the positioning slot 211, so that when the sensing element 3 is positioned and installed in the positioning slot 211, the power-on pin in the sensing element 3 can be correspondingly inserted into the hole 231 for avoiding, and at least partially extends out of the support plate 23 through the hole 231 for avoiding, thereby facilitating the connection of the sensing element 3 with the first installation station 11 in the substrate 1.
In addition, the number of the avoiding holes 231 on the support plate 23 can be set in one-to-one correspondence with the number of the power connection pins in the sensing element 3, so that one power connection pin is correspondingly inserted into one avoiding hole 231, and a short circuit phenomenon between two adjacent power connection pins can be avoided.
The specific arrangement mode of the avoidance hole position 231 has the advantages of simple structure, convenient positioning and installation of the sensing element 3 in the positioning slot 211 and electric connection with the first installation station 11 in the substrate 1, and capability of avoiding short circuit between two adjacent electric connection pins,
in an embodiment, the positioning slot 211 includes two main slot walls disposed opposite to each other along the length direction thereof, and two side slot walls disposed opposite to each other along the width direction thereof; the mounting portion 21 is further provided with escape openings 212 which are respectively communicated with the two side groove walls.
Specifically, as described in further detail with reference to fig. 2 and 4, the positioning slot 211 may completely surround the sensing element 3 from four sides by two main slot walls disposed opposite to each other along the length direction of the positioning slot 211 and two side slot walls disposed opposite to each other along the width direction of the positioning slot, and simultaneously achieve the positioning effect on the verticality and the position degree of the sensing element 3, so as to further improve the wrapping protection effect on the sensing element 3.
In addition, the mounting portion 21 is further provided with a avoiding port 212 which is respectively communicated with the two side groove walls, so that when the sensing element 3 needs to be electrically connected with other elements in the first mounting station 11, an electric connection line can be set through the avoiding port 212, or when the length of the sensing element 3 is slightly greater than that of the positioning slot 211, the avoiding port 212 can accommodate an exceeding part of the sensing element 3 to a certain extent.
The specific arrangement mode of the avoidance port 212 has the beneficial effects of simple structure, convenience in connection between the sensing element 3 and the element, and capability of enabling the positioning slot 211 to be better compatible with the sensing element 3 with a slightly larger length.
In one embodiment, the positioning portion 22 is disposed on the second mounting surface, and includes at least two positioning columns disposed at intervals; the first installation station 11 is correspondingly provided with a positioning hole for inserting the positioning column and a power connection hole corresponding to the avoidance hole 231.
Specifically, as described in further detail with reference to fig. 2 and fig. 4, the positioning portion 22 is specifically provided with at least two mutually spaced positioning posts, and positioning holes for inserting the positioning posts are correspondingly provided in the first mounting station 11, the positioning holes can be specifically provided with recessed blind holes, and the positioning posts and the positioning holes can be specifically provided with clearance fit in an assembly relationship, so that when the positioning posts are completely inserted into the bottom wall of the positioning holes, the function of positioning and fixedly mounting the positioning mounting frame 2 in the first mounting station 11 can be realized, and the power connection pins in the sensing element 3 pass through the avoiding holes 231 and can be welded and fixed with the power connection holes in the first mounting station 11, so as to avoid extrusion stress of the sensing element 3.
The shape of the positioning column can be, but not limited to, cylindrical, prismatic or some other special-shaped column, and the shape of the positioning hole is matched with the positioning column. And two reference columns that set up at least can realize two places location at least, can avoid locating mounting bracket 2 around reference column pivoted problem moreover.
The specific setting mode of the positioning part 22 has the beneficial effects of simple structure, convenient positioning plug-in connection and stable positioning effect.
In one embodiment, the positioning slot 211 is perpendicular to the first mounting surface and the positioning post is perpendicular to the second mounting surface.
Specifically, as described in further detail with reference to fig. 2 and 4, the positioning slot 211 is disposed perpendicular to the first mounting surface, so that the perpendicularity of the sensor element 3 with the positioning mounting frame 2 when the sensor element 3 is plugged into the mounting portion 21 through the positioning slot 211 can be ensured; the positioning columns and the second mounting surface are arranged to be vertical, so that the perpendicularity between the positioning mounting frame 2 and the substrate 1 can be ensured when the positioning columns are inserted into the first mounting station 11 in the substrate 1, and the perpendicularity between the sensing element 3 and the substrate 1 after positioning and mounting is finally ensured, and the magnetic field information detection of the sensing element 3 on the magnetic core assembly 4 mounted subsequently is facilitated.
The specific vertical position setting relationship of the positioning slot 211 and the positioning column has the beneficial effects of simple structure and capability of ensuring the perpendicularity of the sensing element 3 with the substrate 1 after being mounted on the first mounting station 11.
In an embodiment, the positioning posts and the positioning slots 211 are arranged along the same straight line direction, and at least two positioning posts are respectively located at the front and the rear sides of the positioning slots 211.
Specifically, as described in further detail with reference to fig. 2 and fig. 4, the positioning columns and the positioning slots 211 are arranged along the same straight line direction, and at least two positioning columns are respectively arranged at the front and the rear sides of the positioning slots 211, so that on one hand, the size of the positioning mounting frame 2 in the width direction thereof can be reduced, and on the other hand, the size of the accommodating gap formed in the magnetic core assembly 4 and corresponding to the accommodating of the sensing element 3 can be reduced; in addition, the two positioning posts located on the front and rear sides of the positioning slot 211 can exert the mounting and positioning effects on the two ends of the positioning slot 211, respectively, and the accuracy of the mounting position between the positioning mounting frame 2 and the first mounting station 11 in the substrate 1 can be sufficiently ensured.
In one embodiment, the magnetic core assembly 4 comprises a magnetic core body; the magnetic core body is formed by laminating a plurality of magnetic core sheets or integrally injection molding or other processing modes; the magnetic core body is provided with a detection gap, and the detection gap is provided with two side surfaces 41 which face each other at intervals; when the magnetic core assembly 4 is installed in the second installation station 12, the sensing element 3 is correspondingly positioned in the detection gap.
Specifically, as described in further detail in connection with fig. 5 and 6, when the magnetic core assembly 4 is specifically configured as a magnetic core body formed by stacking a plurality of magnetic core pieces, the magnetic core assembly 4 may be specifically, but not limited to, adhered to the second mounting station 12 by glue fixing; when the magnetic core assembly 4 is specifically arranged to be integrally formed by injection molding, the injection molding plastic assembly of the magnetic core assembly 4 is connected with the second installation station 12 through bolts; or the core assembly 4 is integrally injection-molded with the second mounting station 12.
In addition, the specific cross-sectional shape of the magnetic core body may be, but is not limited to, a C-shape, so that the C-shaped magnetic core body has two sides 41 facing each other at intervals, and the two sides 41 form a detection gap for accommodating the sensing element 3 correspondingly, so that when the current detected in the second installation station 12 changes, the magnetic core assembly 4 can change magnetic field information under the electromagnetic induction effect, and thus the sensing element 3 can correspondingly detect the change of the current.
The specific setting mode of the magnetic core assembly 4 has the beneficial effects of simple structure, convenient installation and capability of accurately detecting response with the sensing element 3.
In one embodiment, the two side surfaces 41 also have a recess 411 therein, respectively, recessed toward the inside of the core body.
Specifically, as described in further detail with reference to fig. 5 and 6, there are recesses 411 in the two side surfaces 41 of the magnetic core assembly 4, which recess faces the inside of the magnetic core body, and the two recesses 411 may be, but are not limited to, disposed symmetrically about the center line of the detection gap, and by disposing the two recesses 411, the conventional air gap slit structure of the two side surfaces 41 is optimized, so that the problem of divergence of the central magnetic field can be effectively improved, and thus, the detection accuracy of the sensor element 3 in the detection gap can be more advantageously improved.
In one embodiment, the recess 411 is provided as a groove; the grooves extend along the length of the side 41.
Specifically, as described in further detail with reference to fig. 5 and 6, the recess 411 may be specifically configured as a groove, and the groove shape of the groove may be specifically but not limited to be configured as a bar-shaped groove, a cambered surface groove, or the like, and the groove may be but not limited to be located at the center of the side 41, so that the side 41 may be formed into a structure with two convex sides and a concave middle, that is, the problem of detecting the divergence of the magnetic field in the center of the gap may be improved.
The specific arrangement mode of the concave part 411 has the beneficial effects of simple structure and convenience in processing and production.
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 (9)
1. A current detection device, comprising:
a first mounting station (11) and a second mounting station (12) for fixing components on the substrate (1);
the sensing element (3) is detachably arranged at the first installation station (11) through the positioning installation frame (2);
a magnetic core assembly (4) mounted to the second mounting station (12);
wherein the positioning mounting frame (2) is provided with a mounting part (21) for positioning and mounting the sensing element (3), and a positioning part (22) for positioning and mounting the sensing element to the first mounting station (11);
the sensing element (3) is arranged corresponding to the magnetic core assembly (4) and can sense and detect magnetic field information of the magnetic core assembly (4);
the magnetic core assembly (4) comprises a magnetic core body, wherein the magnetic core body is provided with a detection gap, and the detection gap is provided with two sides (41) facing each other at intervals;
the two side surfaces (41) are also respectively provided with a concave part (411) concave towards the inner part of the magnetic core body.
2. The current detection device according to claim 1, characterized in that the positioning mounting frame (2) further comprises a bracket plate body (23);
the two side plate surfaces of the support plate body (23) are respectively a first mounting surface and a second mounting surface;
the mounting part (21) is arranged on the first mounting surface, and a positioning slot (211) for positioning and mounting the sensing element (3) is formed in the mounting part (21).
3. The current detection device according to claim 2, wherein an avoidance hole site (231) communicated with the bottom wall of the positioning slot (211) is further penetratingly arranged in the support plate body (23);
when the sensing element (3) is positioned and installed in the positioning slot (211), the power connection pin in the sensing element (3) at least partially extends out of the avoidance hole position (231).
4. The current detection device according to claim 2, wherein the positioning slot (211) includes two main slot walls disposed opposite each other in a longitudinal direction thereof, and two side slot walls disposed opposite each other in a width direction thereof;
wherein, the mounting part (21) is also provided with avoiding port positions (212) which are respectively communicated with the two side groove walls.
5. A current detecting device according to claim 3, wherein the positioning portion (22) is provided on the second mounting surface and includes at least two positioning posts provided at intervals;
and a positioning hole for inserting the positioning column and a power connection hole corresponding to the avoidance hole position (231) are correspondingly arranged in the first installation station (11).
6. The current detection device according to claim 5, wherein the positioning slot (211) is perpendicular to the first mounting surface and the positioning post is perpendicular to the second mounting surface.
7. The current detecting device according to claim 5, wherein the positioning posts and the positioning slots (211) are arranged along the same straight line direction, and at least two positioning posts are respectively positioned at the front side and the rear side of the positioning slots (211).
8. The current detection device according to any one of claims 1 to 7, wherein the magnetic core body is formed by lamination of a plurality of magnetic core pieces or integrally injection-molded;
when the magnetic core assembly (4) is installed in the second installation station (12), the sensing element (3) is correspondingly positioned in the detection gap.
9. The current detection device according to claim 8, wherein the recess (411) is provided as a groove;
the grooves extend in the longitudinal direction of the side surface (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310430862.7A CN116359586B (en) | 2023-04-19 | 2023-04-19 | Current detection device |
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| CN202310430862.7A CN116359586B (en) | 2023-04-19 | 2023-04-19 | Current detection device |
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| CN116359586A CN116359586A (en) | 2023-06-30 |
| CN116359586B true CN116359586B (en) | 2023-09-29 |
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| EP2660611A1 (en) * | 2012-04-30 | 2013-11-06 | LEM Intellectual Property SA | Electrical current transducer module |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606071A (en) * | 2007-03-14 | 2009-12-16 | 株式会社田村制作所 | Current detector |
| CN108369248A (en) * | 2015-10-16 | 2018-08-03 | 哈廷电子有限公司及两合公司 | For the sensor module of current sensor, the current sensor with such sensor module is used for the retainer of such current sensor, and the method for assembling current sensor |
| CN215866856U (en) * | 2020-12-28 | 2022-02-18 | 比亚迪半导体股份有限公司 | Current sensor and vehicle |
| CN216622491U (en) * | 2021-12-31 | 2022-05-27 | 蚌埠希磁科技有限公司 | Small single three-phase current sensor |
| CN218068127U (en) * | 2022-08-30 | 2022-12-16 | 武汉盛势启创科技有限公司 | Circuit board assembly of current sensor and current sensor |
| CN115902347A (en) * | 2022-10-28 | 2023-04-04 | 武汉盛势启创科技有限公司 | Magnetic core grounded current sensor and current sensor assembling method |
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| CN116359586A (en) | 2023-06-30 |
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